libxslt-wasm
Version:
JavaScript bindings for libxslt compiled to WebAssembly
6,644 lines • 239 kB
JavaScript
var LibxsltModule = (() => {
return (
async function(moduleArg = {}) {
var moduleRtn;
// include: shell.js
// The Module object: Our interface to the outside world. We import
// and export values on it. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(moduleArg) => Promise<Module>
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to check if Module already exists (e.g. case 3 above).
// Substitution will be replaced with actual code on later stage of the build,
// this way Closure Compiler will not mangle it (e.g. case 4. above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module = moduleArg;
// Set up the promise that indicates the Module is initialized
var readyPromiseResolve, readyPromiseReject;
var readyPromise = new Promise((resolve, reject) => {
readyPromiseResolve = resolve;
readyPromiseReject = reject;
});
// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).
// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = typeof window == "object";
var ENVIRONMENT_IS_WORKER = typeof WorkerGlobalScope != "undefined";
// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = typeof process == "object" && typeof process.versions == "object" && typeof process.versions.node == "string" && process.type != "renderer";
var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
// Three configurations we can be running in:
// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false)
// 2) We could be the application main() thread proxied to worker. (with Emscripten -sPROXY_TO_WORKER) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false)
// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true)
// The way we signal to a worker that it is hosting a pthread is to construct
// it with a specific name.
var ENVIRONMENT_IS_PTHREAD = ENVIRONMENT_IS_WORKER && self.name?.startsWith("em-pthread");
if (ENVIRONMENT_IS_PTHREAD) {
assert(!globalThis.moduleLoaded, "module should only be loaded once on each pthread worker");
globalThis.moduleLoaded = true;
}
if (ENVIRONMENT_IS_NODE) {
// When building an ES module `require` is not normally available.
// We need to use `createRequire()` to construct the require()` function.
const {createRequire} = await import("module");
/** @suppress{duplicate} */ var require = createRequire(import.meta.url);
var worker_threads = require("worker_threads");
global.Worker = worker_threads.Worker;
ENVIRONMENT_IS_WORKER = !worker_threads.isMainThread;
// Under node we set `workerData` to `em-pthread` to signal that the worker
// is hosting a pthread.
ENVIRONMENT_IS_PTHREAD = ENVIRONMENT_IS_WORKER && worker_threads["workerData"] == "em-pthread";
}
// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
var arguments_ = [];
var thisProgram = "./this.program";
var quit_ = (status, toThrow) => {
throw toThrow;
};
var _scriptName = import.meta.url;
// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = "";
function locateFile(path) {
if (Module["locateFile"]) {
return Module["locateFile"](path, scriptDirectory);
}
return scriptDirectory + path;
}
// Hooks that are implemented differently in different runtime environments.
var readAsync, readBinary;
if (ENVIRONMENT_IS_NODE) {
if (typeof process == "undefined" || !process.release || process.release.name !== "node") throw new Error("not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)");
var nodeVersion = process.versions.node;
var numericVersion = nodeVersion.split(".").slice(0, 3);
numericVersion = (numericVersion[0] * 1e4) + (numericVersion[1] * 100) + (numericVersion[2].split("-")[0] * 1);
var minVersion = 190200;
if (numericVersion < 190200) {
throw new Error("This emscripten-generated code requires node v19.02.2.0 (detected v" + nodeVersion + ")");
}
// These modules will usually be used on Node.js. Load them eagerly to avoid
// the complexity of lazy-loading.
var fs = require("fs");
var nodePath = require("path");
if (_scriptName.startsWith("file:")) {
scriptDirectory = nodePath.dirname(require("url").fileURLToPath(_scriptName)) + "/";
}
// include: node_shell_read.js
readBinary = filename => {
// We need to re-wrap `file://` strings to URLs.
filename = isFileURI(filename) ? new URL(filename) : filename;
var ret = fs.readFileSync(filename);
assert(Buffer.isBuffer(ret));
return ret;
};
readAsync = async (filename, binary = true) => {
// See the comment in the `readBinary` function.
filename = isFileURI(filename) ? new URL(filename) : filename;
var ret = fs.readFileSync(filename, binary ? undefined : "utf8");
assert(binary ? Buffer.isBuffer(ret) : typeof ret == "string");
return ret;
};
// end include: node_shell_read.js
if (process.argv.length > 1) {
thisProgram = process.argv[1].replace(/\\/g, "/");
}
arguments_ = process.argv.slice(2);
quit_ = (status, toThrow) => {
process.exitCode = status;
throw toThrow;
};
} else if (ENVIRONMENT_IS_SHELL) {
if ((typeof process == "object" && typeof require === "function") || typeof window == "object" || typeof WorkerGlobalScope != "undefined") throw new Error("not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)");
} else // Note that this includes Node.js workers when relevant (pthreads is enabled).
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
// ENVIRONMENT_IS_NODE.
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
try {
scriptDirectory = new URL(".", _scriptName).href;
} catch {}
if (!(typeof window == "object" || typeof WorkerGlobalScope != "undefined")) throw new Error("not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)");
// Differentiate the Web Worker from the Node Worker case, as reading must
// be done differently.
if (!ENVIRONMENT_IS_NODE) {
// include: web_or_worker_shell_read.js
if (ENVIRONMENT_IS_WORKER) {
readBinary = url => {
var xhr = new XMLHttpRequest;
xhr.open("GET", url, false);
xhr.responseType = "arraybuffer";
xhr.send(null);
return new Uint8Array(/** @type{!ArrayBuffer} */ (xhr.response));
};
}
readAsync = async url => {
// Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
// See https://github.com/github/fetch/pull/92#issuecomment-140665932
// Cordova or Electron apps are typically loaded from a file:// url.
// So use XHR on webview if URL is a file URL.
if (isFileURI(url)) {
return new Promise((resolve, reject) => {
var xhr = new XMLHttpRequest;
xhr.open("GET", url, true);
xhr.responseType = "arraybuffer";
xhr.onload = () => {
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) {
// file URLs can return 0
resolve(xhr.response);
return;
}
reject(xhr.status);
};
xhr.onerror = reject;
xhr.send(null);
});
}
var response = await fetch(url, {
credentials: "same-origin"
});
if (response.ok) {
return response.arrayBuffer();
}
throw new Error(response.status + " : " + response.url);
};
}
} else {
throw new Error("environment detection error");
}
// Set up the out() and err() hooks, which are how we can print to stdout or
// stderr, respectively.
// Normally just binding console.log/console.error here works fine, but
// under node (with workers) we see missing/out-of-order messages so route
// directly to stdout and stderr.
// See https://github.com/emscripten-core/emscripten/issues/14804
var defaultPrint = console.log.bind(console);
var defaultPrintErr = console.error.bind(console);
if (ENVIRONMENT_IS_NODE) {
var utils = require("util");
var stringify = a => typeof a == "object" ? utils.inspect(a) : a;
defaultPrint = (...args) => fs.writeSync(1, args.map(stringify).join(" ") + "\n");
defaultPrintErr = (...args) => fs.writeSync(2, args.map(stringify).join(" ") + "\n");
}
var out = defaultPrint;
var err = defaultPrintErr;
var IDBFS = "IDBFS is no longer included by default; build with -lidbfs.js";
var PROXYFS = "PROXYFS is no longer included by default; build with -lproxyfs.js";
var WORKERFS = "WORKERFS is no longer included by default; build with -lworkerfs.js";
var FETCHFS = "FETCHFS is no longer included by default; build with -lfetchfs.js";
var ICASEFS = "ICASEFS is no longer included by default; build with -licasefs.js";
var JSFILEFS = "JSFILEFS is no longer included by default; build with -ljsfilefs.js";
var OPFS = "OPFS is no longer included by default; build with -lopfs.js";
var NODEFS = "NODEFS is no longer included by default; build with -lnodefs.js";
// perform assertions in shell.js after we set up out() and err(), as otherwise
// if an assertion fails it cannot print the message
assert(ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER || ENVIRONMENT_IS_NODE, "Pthreads do not work in this environment yet (need Web Workers, or an alternative to them)");
assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time. Add `shell` to `-sENVIRONMENT` to enable.");
// end include: shell.js
// include: preamble.js
// === Preamble library stuff ===
// Documentation for the public APIs defined in this file must be updated in:
// site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
// site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
var wasmBinary;
if (typeof WebAssembly != "object") {
err("no native wasm support detected");
}
// Wasm globals
var wasmMemory;
// For sending to workers.
var wasmModule;
//========================================
// Runtime essentials
//========================================
// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;
// set by exit() and abort(). Passed to 'onExit' handler.
// NOTE: This is also used as the process return code code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS;
// In STRICT mode, we only define assert() when ASSERTIONS is set. i.e. we
// don't define it at all in release modes. This matches the behaviour of
// MINIMAL_RUNTIME.
// TODO(sbc): Make this the default even without STRICT enabled.
/** @type {function(*, string=)} */ function assert(condition, text) {
if (!condition) {
abort("Assertion failed" + (text ? ": " + text : ""));
}
}
// We used to include malloc/free by default in the past. Show a helpful error in
// builds with assertions.
// Memory management
var HEAP, /** @type {!Int8Array} */ HEAP8, /** @type {!Uint8Array} */ HEAPU8, /** @type {!Int16Array} */ HEAP16, /** @type {!Uint16Array} */ HEAPU16, /** @type {!Int32Array} */ HEAP32, /** @type {!Uint32Array} */ HEAPU32, /** @type {!Float32Array} */ HEAPF32, /* BigInt64Array type is not correctly defined in closure
/** not-@type {!BigInt64Array} */ HEAP64, /* BigUint64Array type is not correctly defined in closure
/** not-t@type {!BigUint64Array} */ HEAPU64, /** @type {!Float64Array} */ HEAPF64;
var runtimeInitialized = false;
/**
* Indicates whether filename is delivered via file protocol (as opposed to http/https)
* @noinline
*/ var isFileURI = filename => filename.startsWith("file://");
// include: runtime_shared.js
// include: runtime_stack_check.js
// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
var max = _emscripten_stack_get_end();
assert((max & 3) == 0);
// If the stack ends at address zero we write our cookies 4 bytes into the
// stack. This prevents interference with SAFE_HEAP and ASAN which also
// monitor writes to address zero.
if (max == 0) {
max += 4;
}
// The stack grow downwards towards _emscripten_stack_get_end.
// We write cookies to the final two words in the stack and detect if they are
// ever overwritten.
GROWABLE_HEAP_U32()[((max) >> 2)] = 34821223;
GROWABLE_HEAP_U32()[(((max) + (4)) >> 2)] = 2310721022;
// Also test the global address 0 for integrity.
GROWABLE_HEAP_U32()[((0) >> 2)] = 1668509029;
}
function checkStackCookie() {
if (ABORT) return;
var max = _emscripten_stack_get_end();
// See writeStackCookie().
if (max == 0) {
max += 4;
}
var cookie1 = GROWABLE_HEAP_U32()[((max) >> 2)];
var cookie2 = GROWABLE_HEAP_U32()[(((max) + (4)) >> 2)];
if (cookie1 != 34821223 || cookie2 != 2310721022) {
abort(`Stack overflow! Stack cookie has been overwritten at ${ptrToString(max)}, expected hex dwords 0x89BACDFE and 0x2135467, but received ${ptrToString(cookie2)} ${ptrToString(cookie1)}`);
}
// Also test the global address 0 for integrity.
if (GROWABLE_HEAP_U32()[((0) >> 2)] != 1668509029) {
abort("Runtime error: The application has corrupted its heap memory area (address zero)!");
}
}
// end include: runtime_stack_check.js
// include: runtime_exceptions.js
// end include: runtime_exceptions.js
// include: runtime_debug.js
var runtimeDebug = true;
// Switch to false at runtime to disable logging at the right times
// Used by XXXXX_DEBUG settings to output debug messages.
function dbg(...args) {
if (!runtimeDebug && typeof runtimeDebug != "undefined") return;
// Avoid using the console for debugging in multi-threaded node applications
// See https://github.com/emscripten-core/emscripten/issues/14804
if (ENVIRONMENT_IS_NODE) {
// TODO(sbc): Unify with err/out implementation in shell.sh.
var fs = require("fs");
var utils = require("util");
var stringify = a => typeof a == "object" ? utils.inspect(a) : a;
fs.writeSync(1, args.map(stringify).join(" ") + "\n");
} else // TODO(sbc): Make this configurable somehow. Its not always convenient for
// logging to show up as warnings.
console.warn(...args);
}
// Endianness check
(() => {
var h16 = new Int16Array(1);
var h8 = new Int8Array(h16.buffer);
h16[0] = 25459;
if (h8[0] !== 115 || h8[1] !== 99) throw "Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)";
})();
function consumedModuleProp(prop) {
if (!Object.getOwnPropertyDescriptor(Module, prop)) {
Object.defineProperty(Module, prop, {
configurable: true,
set() {
abort(`Attempt to set \`Module.${prop}\` after it has already been processed. This can happen, for example, when code is injected via '--post-js' rather than '--pre-js'`);
}
});
}
}
function ignoredModuleProp(prop) {
if (Object.getOwnPropertyDescriptor(Module, prop)) {
abort(`\`Module.${prop}\` was supplied but \`${prop}\` not included in INCOMING_MODULE_JS_API`);
}
}
// forcing the filesystem exports a few things by default
function isExportedByForceFilesystem(name) {
return name === "FS_createPath" || name === "FS_createDataFile" || name === "FS_createPreloadedFile" || name === "FS_unlink" || name === "addRunDependency" || // The old FS has some functionality that WasmFS lacks.
name === "FS_createLazyFile" || name === "FS_createDevice" || name === "removeRunDependency";
}
/**
* Intercept access to a global symbol. This enables us to give informative
* warnings/errors when folks attempt to use symbols they did not include in
* their build, or no symbols that no longer exist.
*/ function hookGlobalSymbolAccess(sym, func) {
if (typeof globalThis != "undefined" && !Object.getOwnPropertyDescriptor(globalThis, sym)) {
Object.defineProperty(globalThis, sym, {
configurable: true,
get() {
func();
return undefined;
}
});
}
}
function missingGlobal(sym, msg) {
hookGlobalSymbolAccess(sym, () => {
warnOnce(`\`${sym}\` is not longer defined by emscripten. ${msg}`);
});
}
missingGlobal("buffer", "Please use HEAP8.buffer or wasmMemory.buffer");
missingGlobal("asm", "Please use wasmExports instead");
function missingLibrarySymbol(sym) {
hookGlobalSymbolAccess(sym, () => {
// Can't `abort()` here because it would break code that does runtime
// checks. e.g. `if (typeof SDL === 'undefined')`.
var msg = `\`${sym}\` is a library symbol and not included by default; add it to your library.js __deps or to DEFAULT_LIBRARY_FUNCS_TO_INCLUDE on the command line`;
// DEFAULT_LIBRARY_FUNCS_TO_INCLUDE requires the name as it appears in
// library.js, which means $name for a JS name with no prefix, or name
// for a JS name like _name.
var librarySymbol = sym;
if (!librarySymbol.startsWith("_")) {
librarySymbol = "$" + sym;
}
msg += ` (e.g. -sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE='${librarySymbol}')`;
if (isExportedByForceFilesystem(sym)) {
msg += ". Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you";
}
warnOnce(msg);
});
// Any symbol that is not included from the JS library is also (by definition)
// not exported on the Module object.
unexportedRuntimeSymbol(sym);
}
function unexportedRuntimeSymbol(sym) {
if (ENVIRONMENT_IS_PTHREAD) {
return;
}
if (!Object.getOwnPropertyDescriptor(Module, sym)) {
Object.defineProperty(Module, sym, {
configurable: true,
get() {
var msg = `'${sym}' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the Emscripten FAQ)`;
if (isExportedByForceFilesystem(sym)) {
msg += ". Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you";
}
abort(msg);
}
});
}
}
/**
* Override `err`/`out`/`dbg` to report thread / worker information
*/ function initWorkerLogging() {
function getLogPrefix() {
var t = 0;
if (runtimeInitialized && typeof _pthread_self != "undefined") {
t = _pthread_self();
}
return `w:${workerID},t:${ptrToString(t)}:`;
}
// Prefix all dbg() messages with the calling thread info.
var origDbg = dbg;
dbg = (...args) => origDbg(getLogPrefix(), ...args);
}
initWorkerLogging();
// end include: runtime_debug.js
// include: memoryprofiler.js
// end include: memoryprofiler.js
// include: growableHeap.js
// Support for growable heap + pthreads, where the buffer may change, so JS views
// must be updated.
function GROWABLE_HEAP_I8() {
if (wasmMemory.buffer != HEAP8.buffer) {
updateMemoryViews();
}
return HEAP8;
}
function GROWABLE_HEAP_U8() {
if (wasmMemory.buffer != HEAP8.buffer) {
updateMemoryViews();
}
return HEAPU8;
}
function GROWABLE_HEAP_I16() {
if (wasmMemory.buffer != HEAP8.buffer) {
updateMemoryViews();
}
return HEAP16;
}
function GROWABLE_HEAP_U16() {
if (wasmMemory.buffer != HEAP8.buffer) {
updateMemoryViews();
}
return HEAPU16;
}
function GROWABLE_HEAP_I32() {
if (wasmMemory.buffer != HEAP8.buffer) {
updateMemoryViews();
}
return HEAP32;
}
function GROWABLE_HEAP_U32() {
if (wasmMemory.buffer != HEAP8.buffer) {
updateMemoryViews();
}
return HEAPU32;
}
function GROWABLE_HEAP_F32() {
if (wasmMemory.buffer != HEAP8.buffer) {
updateMemoryViews();
}
return HEAPF32;
}
function GROWABLE_HEAP_F64() {
if (wasmMemory.buffer != HEAP8.buffer) {
updateMemoryViews();
}
return HEAPF64;
}
// end include: growableHeap.js
var wasmModuleReceived;
if (ENVIRONMENT_IS_NODE && (ENVIRONMENT_IS_PTHREAD)) {
// Create as web-worker-like an environment as we can.
var parentPort = worker_threads["parentPort"];
parentPort.on("message", msg => global.onmessage?.({
data: msg
}));
Object.assign(globalThis, {
self: global,
postMessage: msg => parentPort["postMessage"](msg)
});
}
// include: runtime_pthread.js
// Pthread Web Worker handling code.
// This code runs only on pthread web workers and handles pthread setup
// and communication with the main thread via postMessage.
// Unique ID of the current pthread worker (zero on non-pthread-workers
// including the main thread).
var workerID = 0;
if (ENVIRONMENT_IS_PTHREAD) {
// Thread-local guard variable for one-time init of the JS state
var initializedJS = false;
// Turn unhandled rejected promises into errors so that the main thread will be
// notified about them.
self.onunhandledrejection = e => {
throw e.reason || e;
};
async function handleMessage(e) {
try {
var msgData = e["data"];
//dbg('msgData: ' + Object.keys(msgData));
var cmd = msgData.cmd;
if (cmd === "load") {
// Preload command that is called once per worker to parse and load the Emscripten code.
workerID = msgData.workerID;
// Until we initialize the runtime, queue up any further incoming messages.
let messageQueue = [];
self.onmessage = e => messageQueue.push(e);
// And add a callback for when the runtime is initialized.
self.startWorker = instance => {
// Notify the main thread that this thread has loaded.
postMessage({
cmd: "loaded"
});
// Process any messages that were queued before the thread was ready.
for (let msg of messageQueue) {
handleMessage(msg);
}
// Restore the real message handler.
self.onmessage = handleMessage;
};
// Use `const` here to ensure that the variable is scoped only to
// that iteration, allowing safe reference from a closure.
for (const handler of msgData.handlers) {
// The the main module has a handler for a certain even, but no
// handler exists on the pthread worker, then proxy that handler
// back to the main thread.
if (!Module[handler] || Module[handler].proxy) {
Module[handler] = (...args) => {
postMessage({
cmd: "callHandler",
handler,
args
});
};
// Rebind the out / err handlers if needed
if (handler == "print") out = Module[handler];
if (handler == "printErr") err = Module[handler];
}
}
wasmMemory = msgData.wasmMemory;
updateMemoryViews();
wasmModuleReceived(msgData.wasmModule);
} else if (cmd === "run") {
assert(msgData.pthread_ptr);
// Call inside JS module to set up the stack frame for this pthread in JS module scope.
// This needs to be the first thing that we do, as we cannot call to any C/C++ functions
// until the thread stack is initialized.
establishStackSpace(msgData.pthread_ptr);
// Pass the thread address to wasm to store it for fast access.
__emscripten_thread_init(msgData.pthread_ptr, /*is_main=*/ 0, /*is_runtime=*/ 0, /*can_block=*/ 1, 0, 0);
PThread.threadInitTLS();
// Await mailbox notifications with `Atomics.waitAsync` so we can start
// using the fast `Atomics.notify` notification path.
__emscripten_thread_mailbox_await(msgData.pthread_ptr);
if (!initializedJS) {
// Embind must initialize itself on all threads, as it generates support JS.
// We only do this once per worker since they get reused
__embind_initialize_bindings();
initializedJS = true;
}
try {
await invokeEntryPoint(msgData.start_routine, msgData.arg);
} catch (ex) {
if (ex != "unwind") {
// The pthread "crashed". Do not call `_emscripten_thread_exit` (which
// would make this thread joinable). Instead, re-throw the exception
// and let the top level handler propagate it back to the main thread.
throw ex;
}
}
} else if (msgData.target === "setimmediate") {} else if (cmd === "checkMailbox") {
if (initializedJS) {
checkMailbox();
}
} else if (cmd) {
// The received message looks like something that should be handled by this message
// handler, (since there is a cmd field present), but is not one of the
// recognized commands:
err(`worker: received unknown command ${cmd}`);
err(msgData);
}
} catch (ex) {
err(`worker: onmessage() captured an uncaught exception: ${ex}`);
if (ex?.stack) err(ex.stack);
__emscripten_thread_crashed();
throw ex;
}
}
self.onmessage = handleMessage;
}
// ENVIRONMENT_IS_PTHREAD
// end include: runtime_pthread.js
function updateMemoryViews() {
var b = wasmMemory.buffer;
HEAP8 = new Int8Array(b);
Module["HEAP16"] = HEAP16 = new Int16Array(b);
Module["HEAPU8"] = HEAPU8 = new Uint8Array(b);
Module["HEAPU16"] = HEAPU16 = new Uint16Array(b);
Module["HEAP32"] = HEAP32 = new Int32Array(b);
Module["HEAPU32"] = HEAPU32 = new Uint32Array(b);
Module["HEAPF32"] = HEAPF32 = new Float32Array(b);
Module["HEAPF64"] = HEAPF64 = new Float64Array(b);
HEAP64 = new BigInt64Array(b);
HEAPU64 = new BigUint64Array(b);
}
// end include: runtime_shared.js
assert(typeof Int32Array != "undefined" && typeof Float64Array !== "undefined" && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined, "JS engine does not provide full typed array support");
// In non-standalone/normal mode, we create the memory here.
// include: runtime_init_memory.js
// Create the wasm memory. (Note: this only applies if IMPORTED_MEMORY is defined)
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
function initMemory() {
if ((ENVIRONMENT_IS_PTHREAD)) {
return;
}
if (Module["wasmMemory"]) {
wasmMemory = Module["wasmMemory"];
} else {
var INITIAL_MEMORY = Module["INITIAL_MEMORY"] || 16777216;
assert(INITIAL_MEMORY >= 65536, "INITIAL_MEMORY should be larger than STACK_SIZE, was " + INITIAL_MEMORY + "! (STACK_SIZE=" + 65536 + ")");
/** @suppress {checkTypes} */ wasmMemory = new WebAssembly.Memory({
"initial": INITIAL_MEMORY / 65536,
// In theory we should not need to emit the maximum if we want "unlimited"
// or 4GB of memory, but VMs error on that atm, see
// https://github.com/emscripten-core/emscripten/issues/14130
// And in the pthreads case we definitely need to emit a maximum. So
// always emit one.
"maximum": 32768,
"shared": true
});
}
updateMemoryViews();
}
// end include: runtime_init_memory.js
function preRun() {
assert(!ENVIRONMENT_IS_PTHREAD);
// PThreads reuse the runtime from the main thread.
if (Module["preRun"]) {
if (typeof Module["preRun"] == "function") Module["preRun"] = [ Module["preRun"] ];
while (Module["preRun"].length) {
addOnPreRun(Module["preRun"].shift());
}
}
consumedModuleProp("preRun");
// Begin ATPRERUNS hooks
callRuntimeCallbacks(onPreRuns);
}
function initRuntime() {
assert(!runtimeInitialized);
runtimeInitialized = true;
if (ENVIRONMENT_IS_PTHREAD) return startWorker(Module);
checkStackCookie();
// Begin ATINITS hooks
if (!Module["noFSInit"] && !FS.initialized) FS.init();
TTY.init();
// End ATINITS hooks
wasmExports["__wasm_call_ctors"]();
// Begin ATPOSTCTORS hooks
FS.ignorePermissions = false;
}
function preMain() {
checkStackCookie();
}
function postRun() {
checkStackCookie();
if ((ENVIRONMENT_IS_PTHREAD)) {
return;
}
// PThreads reuse the runtime from the main thread.
if (Module["postRun"]) {
if (typeof Module["postRun"] == "function") Module["postRun"] = [ Module["postRun"] ];
while (Module["postRun"].length) {
addOnPostRun(Module["postRun"].shift());
}
}
consumedModuleProp("postRun");
// Begin ATPOSTRUNS hooks
callRuntimeCallbacks(onPostRuns);
}
// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// Module.preRun (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;
var dependenciesFulfilled = null;
// overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};
var runDependencyWatcher = null;
function getUniqueRunDependency(id) {
var orig = id;
while (1) {
if (!runDependencyTracking[id]) return id;
id = orig + Math.random();
}
}
function addRunDependency(id) {
runDependencies++;
Module["monitorRunDependencies"]?.(runDependencies);
if (id) {
assert(!runDependencyTracking[id]);
runDependencyTracking[id] = 1;
if (runDependencyWatcher === null && typeof setInterval != "undefined") {
// Check for missing dependencies every few seconds
runDependencyWatcher = setInterval(() => {
if (ABORT) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
return;
}
var shown = false;
for (var dep in runDependencyTracking) {
if (!shown) {
shown = true;
err("still waiting on run dependencies:");
}
err(`dependency: ${dep}`);
}
if (shown) {
err("(end of list)");
}
}, 1e4);
}
} else {
err("warning: run dependency added without ID");
}
}
function removeRunDependency(id) {
runDependencies--;
Module["monitorRunDependencies"]?.(runDependencies);
if (id) {
assert(runDependencyTracking[id]);
delete runDependencyTracking[id];
} else {
err("warning: run dependency removed without ID");
}
if (runDependencies == 0) {
if (runDependencyWatcher !== null) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
}
if (dependenciesFulfilled) {
var callback = dependenciesFulfilled;
dependenciesFulfilled = null;
callback();
}
}
}
/** @param {string|number=} what */ function abort(what) {
Module["onAbort"]?.(what);
what = "Aborted(" + what + ")";
// TODO(sbc): Should we remove printing and leave it up to whoever
// catches the exception?
err(what);
ABORT = true;
// Use a wasm runtime error, because a JS error might be seen as a foreign
// exception, which means we'd run destructors on it. We need the error to
// simply make the program stop.
// FIXME This approach does not work in Wasm EH because it currently does not assume
// all RuntimeErrors are from traps; it decides whether a RuntimeError is from
// a trap or not based on a hidden field within the object. So at the moment
// we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that
// allows this in the wasm spec.
// Suppress closure compiler warning here. Closure compiler's builtin extern
// definition for WebAssembly.RuntimeError claims it takes no arguments even
// though it can.
// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
/** @suppress {checkTypes} */ var e = new WebAssembly.RuntimeError(what);
readyPromiseReject(e);
// Throw the error whether or not MODULARIZE is set because abort is used
// in code paths apart from instantiation where an exception is expected
// to be thrown when abort is called.
throw e;
}
function createExportWrapper(name, nargs) {
return (...args) => {
assert(runtimeInitialized, `native function \`${name}\` called before runtime initialization`);
var f = wasmExports[name];
assert(f, `exported native function \`${name}\` not found`);
// Only assert for too many arguments. Too few can be valid since the missing arguments will be zero filled.
assert(args.length <= nargs, `native function \`${name}\` called with ${args.length} args but expects ${nargs}`);
return f(...args);
};
}
var wasmBinaryFile;
function findWasmBinary() {
if (Module["locateFile"]) {
return locateFile("libxslt.wasm");
}
// Use bundler-friendly `new URL(..., import.meta.url)` pattern; works in browsers too.
return new URL("libxslt.wasm", import.meta.url).href;
}
function getBinarySync(file) {
if (file == wasmBinaryFile && wasmBinary) {
return new Uint8Array(wasmBinary);
}
if (readBinary) {
return readBinary(file);
}
throw "both async and sync fetching of the wasm failed";
}
async function getWasmBinary(binaryFile) {
// If we don't have the binary yet, load it asynchronously using readAsync.
if (!wasmBinary) {
// Fetch the binary using readAsync
try {
var response = await readAsync(binaryFile);
return new Uint8Array(response);
} catch {}
}
// Otherwise, getBinarySync should be able to get it synchronously
return getBinarySync(binaryFile);
}
async function instantiateArrayBuffer(binaryFile, imports) {
try {
var binary = await getWasmBinary(binaryFile);
var instance = await WebAssembly.instantiate(binary, imports);
return instance;
} catch (reason) {
err(`failed to asynchronously prepare wasm: ${reason}`);
// Warn on some common problems.
if (isFileURI(wasmBinaryFile)) {
err(`warning: Loading from a file URI (${wasmBinaryFile}) is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing`);
}
abort(reason);
}
}
async function instantiateAsync(binary, binaryFile, imports) {
if (!binary && typeof WebAssembly.instantiateStreaming == "function" && !isFileURI(binaryFile) && !ENVIRONMENT_IS_NODE) {
try {
var response = fetch(binaryFile, {
credentials: "same-origin"
});
var instantiationResult = await WebAssembly.instantiateStreaming(response, imports);
return instantiationResult;
} catch (reason) {
// We expect the most common failure cause to be a bad MIME type for the binary,
// in which case falling back to ArrayBuffer instantiation should work.
err(`wasm streaming compile failed: ${reason}`);
err("falling back to ArrayBuffer instantiation");
}
}
return instantiateArrayBuffer(binaryFile, imports);
}
function getWasmImports() {
assignWasmImports();
// instrumenting imports is used in asyncify in two ways: to add assertions
// that check for proper import use, and for ASYNCIFY=2 we use them to set up
// the Promise API on the import side.
// In pthreads builds getWasmImports is called more than once but we only
// and the instrument the imports once.
if (!wasmImports.__instrumented) {
wasmImports.__instrumented = true;
Asyncify.instrumentWasmImports(wasmImports);
}
// prepare imports
return {
"env": wasmImports,
"wasi_snapshot_preview1": wasmImports
};
}
// Create the wasm instance.
// Receives the wasm imports, returns the exports.
async function createWasm() {
// Load the wasm module and create an instance of using native support in the JS engine.
// handle a generated wasm instance, receiving its exports and
// performing other necessary setup
/** @param {WebAssembly.Module=} module*/ function receiveInstance(instance, module) {
wasmExports = instance.exports;
wasmExports = Asyncify.instrumentWasmExports(wasmExports);
registerTLSInit(wasmExports["_emscripten_tls_init"]);
wasmTable = wasmExports["__indirect_function_table"];
assert(wasmTable, "table not found in wasm exports");
// We now have the Wasm module loaded up, keep a reference to the compiled module so we can post it to the workers.
wasmModule = module;
removeRunDependency("wasm-instantiate");
return wasmExports;
}
// wait for the pthread pool (if any)
addRunDependency("wasm-instantiate");
// Prefer streaming instantiation if available.
// Async compilation can be confusing when an error on the page overwrites Module
// (for example, if the order of elements is wrong, and the one defining Module is
// later), so we save Module and check it later.
var trueModule = Module;
function receiveInstantiationResult(result) {
// 'result' is a ResultObject object which has both the module and instance.
// receiveInstance() will swap in the exports (to Module.asm) so they can be called
assert(Module === trueModule, "the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?");
trueModule = null;
return receiveInstance(result["instance"], result["module"]);
}
var info = getWasmImports();
// User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
// to manually instantiate the Wasm module themselves. This allows pages to
// run the instantiation parallel to any other async startup actions they are
// performing.
// Also pthreads and wasm workers initialize the wasm instance through this
// path.
if (Module["instantiateWasm"]) {
return new Promise((resolve, reject) => {
try {
Module["instantiateWasm"](info, (mod, inst) => {
resolve(receiveInstance(mod, inst));
});
} catch (e) {
err(`Module.instantiateWasm callback failed with error: ${e}`);
reject(e);
}
});
}
if ((ENVIRONMENT_IS_PTHREAD)) {
return new Promise(resolve => {
wasmModuleReceived = module => {
// Instantiate from the module posted from the main thread.
// We can just use sync instantiation in the worker.
var instance = new WebAssembly.Instance(module, getWasmImports());
resolve(receiveInstance(instance, module));
};
});
}
wasmBinaryFile ??= findWasmBinary();
try {
var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
var exports = receiveInstantiationResult(result);
return exports;
} catch (e) {
// If instantiation fails, reject the module ready promise.
readyPromiseReject(e);
return Promise.reject(e);
}
}
// end include: preamble.js
// Begin JS library code
class ExitStatus {
name="ExitStatus";
constructor(status) {
this.message = `Program terminated with exit(${status})`;
this.status = status;
}
}
var terminateWorker = worker => {
worker.terminate();
// terminate() can be asynchronous, so in theory the worker can continue
// to run for some amount of time after termination. However from our POV
// the worker now dead and we don't want to hear from it again, so we stub
// out its message handler here. This avoids having to check in each of
// the onmessage handlers if the message was coming from valid worker.
worker.onmessage = e => {
var cmd = e["data"].cmd;
err(`received "${cmd}" command from terminated worker: ${worker.workerID}`);
};
};
var cleanupThread = pthread_ptr => {
assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! cleanupThread() can only ever be called from main application thread!");
assert(pthread_ptr, "Internal Error! Null pthread_ptr in cleanupThread!");
var worker = PThread.pthreads[pthread_ptr];
assert(worker);
PThread.returnWorkerToPool(worker);
};
var callRuntimeCallbacks = callbacks => {
while (callbacks.length > 0) {
// Pass the module as the first argument.
callbacks.shift()(Module);
}
};
var onPreRuns = [];
var addOnPreRun = cb => onPreRuns.push(cb);
var spawnThread = threadParams => {
assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! spawnThread() can only ever be called from main application thread!");
assert(threadParams.pthread_ptr, "Internal error, no pthread ptr!");
var worker = PThread.getNewWorker();
if (!worker) {
// No available workers in the PThread pool.
return 6;
}
assert(!worker.pthread_ptr, "Internal error!");
PThread.runningWorkers.push(worker);
// Add to pthreads map
PThread.pthreads[threadParams.pthread_ptr] = worker;
worker.pthread_ptr = threadParams.pthread_ptr;
var msg = {
cmd: "run",
start_routine: threadParams.startRoutine,
arg: threadParams.arg,
pthread_ptr: threadParams.pthread_ptr
};
if (ENVIRONMENT_IS_NODE) {
// Mark worker as weakly referenced once we start executing a pthread,
// so that its existence does not prevent Node.js from exiting. This
// has no effect if the worker is already weakly referenced (e.g. if
// this worker was previously idle/unused).
worker.unref();
}
// Ask the worker to start executing its pthread entry point function.
worker.postMessage(msg, threadParams.transferList);
return 0;
};
var runtimeKeepaliveCounter = 0;
var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0;
var stackSave = () => _emscripten_stack_get_current();
var stackRestore = val => __emscripten_stack_restore(val);
var stackAlloc = sz => __emscripten_stack_alloc(sz);
/** @type{function(number, (number|boolean), ...number)} */ var proxyToMainThread = (funcIndex, emAsmAddr, sync, ...callArgs) => {
// EM_ASM proxying is done by passing a pointer to the address of the EM_ASM
// content as `emAsmAddr`. JS library proxying is done by passing an index
// into `proxiedJSCallArgs` as `funcIndex`. If `emAsmAddr` is non-zero then
// `funcIndex` will be ignored.
// Additional arguments are passed after the first three are the actual
// function arguments.
// The serialization buffer contains the number of call params, and then
// all the args here.
// We also pass 'sync' to C separately, since C needs to look at it.
// Allocate a buffer, which will be copied by the C code.
// First passed parameter specifies the number of arguments to the function.
// When BigInt support is enabled, we must handle types in a more complex
// way, detecting at runtime if a value is a BigInt or not (as we have no
// type info here). To do that, add a "prefix" before each value that
// indicates if it is a BigInt, which effectively doubles the number of
// values we serialize for proxying. TODO: pack this?
var serializedNumCallArgs = callArgs.length * 2;
var sp = stackSave();
var args = stackAlloc(serializedNumCallArgs * 8);
var b = ((args) >> 3);
for (var i = 0; i < callArgs.length; i++) {
var arg = callArgs[i];
if (typeof arg == "bigint") {
// The prefix is non-zero to indicate a bigint.
HEAP64[b + 2 * i] = 1n;
HEAP64[b + 2 * i + 1] = arg;
} else {
// The prefix is zero to indicate a JS Number.
HEAP64[b + 2 * i] = 0n;
GROWABLE_HEAP_F64()[b + 2 * i + 1] = arg;
}
}
var rtn = __emscripten_run_on_main_thread_js(funcIndex, emAsmAddr, serializedNumCallArgs, args, sync);
stackRestore(sp);
return rtn;
};
function _proc_exit(code) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(0, 0, 1, code);
EXITSTATUS = code;
if (!keepRuntimeAlive()) {
PThread.terminateAllThreads();
Module["onExit"]?.(code);
ABORT = true;
}
quit_(code, new ExitStatus(code));
}
function exitOnMainThread(returnCode) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(1, 0, 0, returnCode);
_exit(returnCode);
}
/** @suppress {duplicate } */ /** @param {boolean|number=} implicit */ var exitJS = (status, implicit) => {
EXITSTATUS = status;
checkUnflushedContent();
if (ENVIRONMENT_IS_PTHREAD) {
// implicit exit can never happen on a pthread
assert(!implicit);
// When running in a pthread we propagate the exit back to the main thread
// where it can decide if the whole process should be shut down or not.
// The pthread may have decided not to exit its own runtime, for example
// because it runs a main loop, but that doesn't affect the main thread.
exitOnMainThread(status);
throw "unwind";
}
// if exit() was called explicitly, warn the user if the runtime isn't actually being shut down
if (keepRuntimeAlive() && !implicit) {
var msg = `program exited (with status: ${status}), but keepRuntimeAlive() is set (counter=${runtimeKeepaliveCounter}) due to an async operation, so halting execution but not exiting the runtime or preventing further async execution (you can use emscripten_force_exit, if you want to force a true shutdown)`;
readyPromiseReject(msg);
err(msg);
}
_proc_exit(status);
};
var _exit = exitJS;
var ptrToString = ptr => {
assert(typeof ptr === "number");
// With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
ptr >>>= 0;
return "0x" + ptr.toString(16).padStart(8, "0");
};
var PThread = {
unusedWorkers: [],
runningWorkers: [],
tlsInitFunctions: [],
pthreads: {},
nextWorkerID: 1,
init() {
if ((!(ENVIRONMENT_IS_PTHREAD))) {
PThread.initMainThread();
}
},
initMainThread() {
// MINIMAL_RUNTIME takes care of calling loadWasmModuleToAllWorkers
// in postamble_minimal.js
addOnPreRun(() => {
addRunDependency("loading-workers");
PThread.loadWasmModuleToAllWorkers(() => removeRunDependency("loading-workers"));
});
},
terminateAllThreads: () => {
assert(!ENVIRONMENT_IS_PTHREAD, "Internal Error! terminateAllThreads() can only ever be called from main application thread!");
// Attempt to kill all workers. Sadly (at least on the web) there is no
// way to terminate a worker synchronously, or to be notified when a
// worker in actually terminated. This means there is some risk that
// pthreads will continue to be executing after `worker.terminate` has
// returned. For this reason, we don't call `returnWorkerToPool` here or
// free the underlying pthread data structures.
for (var worker of PThread.runningWorkers) {
terminateWorker(worker);
}
for (var worker of PThread.unusedWorkers) {
terminateWorker(worker);
}
PThread.unusedWorkers = [];
PThread.runningWorkers = [];
PThread.pthreads = {};
},
returnWorkerToPool: worker => {
// We don't want to run main thread queued calls here, since we are doing
// some operations that leave the worker queue in an invalid state until
// we are completely done (it would be bad if free() ends up calling a
// queued pthread_create which looks at the global data structures we are
// modifying). To achieve that, defer the free() til the very end, when
// we are all done.
var pthread_ptr = worker.pthread_ptr;
delete PThread.pthreads[pthread_ptr];
// Note: worker is intentionally not terminated so the pool can
// dynamically grow.
PThread.unusedWorkers.push(worker);
PThread.runningWorkers.splice(PThread.runningWorkers.indexOf(worker), 1);
// Not a running Worker anymore
// Detach the worker from the pthread object, and return it to the
// worker pool as an unused worker.
worker.pthread_ptr = 0;
// Finally, free the underlying (and now-unused) pthread structure in
// linear memory.
__emscripten_thread_free_data(pthread_ptr);
},
threadInitTLS() {
// Call thread init functions (these are the _emscripten_tls_init for each
// module loaded.
PThread.tlsInitFunctions.forEach(f => f());
},
loadWasmModuleToWorker: worker => new Promise(onFinishedLoading => {
worker.onmessage = e => {
var d = e["data"];
var cmd = d.cmd;
// If this message is intended to a recipient that is not the main
// thread, forward it to the target thread.
if (d.targetThread && d.targetThread != _pthread_self()) {
var targetWorker = PThread.pthreads[d.targetThread];
if (targetWorker) {
targetWorker.postMessage(d, d.transferList);
} else {
err(`Internal error! Worker sent a message "${cmd}" to target pthread ${d.targetThread}, but that thread no longer exists!`);
}
return;
}
if (cmd === "checkMailbox") {
checkMailbox();
} else if (cmd === "spawnThread") {
spawnThread(d);
} else if (cmd === "cleanupThread") {
cleanupThread(d.thread);
} else if (cmd === "loaded") {
worker.loaded = true;
onFinishedLoading(worker);
} else if (d.target === "setimmediate") {
// Worker wants to postMessage() to itself to implement setImmediate()
// emulation.
worker.postMessage(d);
} else if (cmd === "callHandler") {
Module[d.handler](...d.args);
} else if (cmd) {
// The received message looks like something that should be handled by this message
// handler, (since there is a e.data.cmd field present), but is not one of the
// recognized commands:
err(`worker sent an unknown command ${cmd}`);
}
};
worker.onerror = e => {
var message = "worker sent an error!";
if (worker.pthread_ptr) {
message = `Pthread ${ptrToString(worker.pthread_ptr)} sent an error!`;
}
err(`${message} ${e.filename}:${e.lineno}: ${e.message}`);
throw e;
};
if (ENVIRONMENT_IS_NODE) {
worker.on("message", data => worker.onmessage({
data
}));
worker.on("error", e => worker.onerror(e));
}
assert(wasmMemory instanceof WebAssembly.Memory, "WebAssembly memory should have been loaded by now!");
assert(wasmModule instanceof WebAssembly.Module, "WebAssembly Module should have been loaded by now!");
// When running on a pthread, none of the incoming parameters on the module
// object are present. Proxy known handlers back to the main thread if specified.
var handlers = [];
var knownHandlers = [ "onExit", "onAbort", "print", "printErr" ];
for (var handler of knownHandlers) {
if (Module.propertyIsEnumerable(handler)) {
handlers.push(handler);
}
}
// Ask the new worker to load up the Emscripten-compiled page. This is a heavy operation.
worker.postMessage({
cmd: "load",
handlers,
wasmMemory,
wasmModule,
"workerID": worker.workerID
});
}),
loadWasmModuleToAllWorkers(onMaybeReady) {
onMaybeReady();
},
allocateUnusedWorker() {
var worker;
// If we're using module output, use bundler-friendly pattern.
if (Module["mainScriptUrlOrBlob"]) {
var pthreadMainJs = Module["mainScriptUrlOrBlob"];
if (typeof pthreadMainJs != "string") {
pthreadMainJs = URL.createObjectURL(pthreadMainJs);
}
worker = new Worker(pthreadMainJs, {
"type": "module",
// This is the way that we signal to the node worker that it is hosting
// a pthread.
"workerData": "em-pthread",
// This is the way that we signal to the Web Worker that it is hosting
// a pthread.
"name": "em-pthread-" + PThread.nextWorkerID
});
} else // We need to generate the URL with import.meta.url as the base URL of the JS file
// instead of just using new URL(import.meta.url) because bundler's only recognize
// the first case in their bundling step. The latter ends up producing an invalid
// URL to import from the server (e.g., for webpack the file:// path).
// See https://github.com/webpack/webpack/issues/12638
worker = new Worker(new URL("libxslt.js", import.meta.url), {
"type": "module",
// This is the way that we signal to the node worker that it is hosting
// a pthread.
"workerData": "em-pthread",
// This is the way that we signal to the Web Worker that it is hosting
// a pthread.
"name": "em-pthread-" + PThread.nextWorkerID
});
worker.workerID = PThread.nextWorkerID++;
PThread.unusedWorkers.push(worker);
},
getNewWorker() {
if (PThread.unusedWorkers.length == 0) {
// PTHREAD_POOL_SIZE_STRICT should show a warning and, if set to level `2`, return from the function.
// However, if we're in Node.js, then we can create new workers on the fly and PTHREAD_POOL_SIZE_STRICT
// should be ignored altogether.
if (!ENVIRONMENT_IS_NODE) {
err("Tried to spawn a new thread, but the thread pool is exhausted.\n" + "This might result in a deadlock unless some threads eventually exit or the code explicitly breaks out to the event loop.\n" + "If you want to increase the pool size, use setting `-sPTHREAD_POOL_SIZE=...`." + "\nIf you want to throw an explicit error instead of the risk of deadlocking in those cases, use setting `-sPTHREAD_POOL_SIZE_STRICT=2`.");
}
PThread.allocateUnusedWorker();
PThread.loadWasmModuleToWorker(PThread.unusedWorkers[0]);
}
return PThread.unusedWorkers.pop();
}
};
var onPostRuns = [];
var addOnPostRun = cb => onPostRuns.push(cb);
var establishStackSpace = pthread_ptr => {
// If memory growth is enabled, the memory views may have gotten out of date,
// so resync them before accessing the pthread ptr below.
updateMemoryViews();
var stackHigh = GROWABLE_HEAP_U32()[(((pthread_ptr) + (52)) >> 2)];
var stackSize = GROWABLE_HEAP_U32()[(((pthread_ptr) + (56)) >> 2)];
var stackLow = stackHigh - stackSize;
assert(stackHigh != 0);
assert(stackLow != 0);
assert(stackHigh > stackLow, "stackHigh must be higher then stackLow");
// Set stack limits used by `emscripten/stack.h` function. These limits are
// cached in wasm-side globals to make checks as fast as possible.
_emscripten_stack_set_limits(stackHigh, stackLow);
// Call inside wasm module to set up the stack frame for this pthread in wasm module scope
stackRestore(stackHigh);
// Write the stack cookie last, after we have set up the proper bounds and
// current position of the stack.
writeStackCookie();
};
/**
* @param {number} ptr
* @param {string} type
*/ function getValue(ptr, type = "i8") {
if (type.endsWith("*")) type = "*";
switch (type) {
case "i1":
return GROWABLE_HEAP_I8()[ptr];
case "i8":
return GROWABLE_HEAP_I8()[ptr];
case "i16":
return GROWABLE_HEAP_I16()[((ptr) >> 1)];
case "i32":
return GROWABLE_HEAP_I32()[((ptr) >> 2)];
case "i64":
return HEAP64[((ptr) >> 3)];
case "float":
return GROWABLE_HEAP_F32()[((ptr) >> 2)];
case "double":
return GROWABLE_HEAP_F64()[((ptr) >> 3)];
case "*":
return GROWABLE_HEAP_U32()[((ptr) >> 2)];
default:
abort(`invalid type for getValue: ${type}`);
}
}
var wasmTableMirror = [];
/** @type {WebAssembly.Table} */ var wasmTable;
var getWasmTableEntry = funcPtr => {
var func = wasmTableMirror[funcPtr];
if (!func) {
/** @suppress {checkTypes} */ wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
if (Asyncify.isAsyncExport(func)) {
wasmTableMirror[funcPtr] = func = Asyncify.makeAsyncFunction(func);
}
}
return func;
};
var invokeEntryPoint = async (ptr, arg) => {
// An old thread on this worker may have been canceled without returning the
// `runtimeKeepaliveCounter` to zero. Reset it now so the new thread won't
// be affected.
runtimeKeepaliveCounter = 0;
// Same for noExitRuntime. The default for pthreads should always be false
// otherwise pthreads would never complete and attempts to pthread_join to
// them would block forever.
// pthreads can still choose to set `noExitRuntime` explicitly, or
// call emscripten_unwind_to_js_event_loop to extend their lifetime beyond
// their main function. See comment in src/runtime_pthread.js for more.
noExitRuntime = 0;
// pthread entry points are always of signature 'void *ThreadMain(void *arg)'
// Native codebases sometimes spawn threads with other thread entry point
// signatures, such as void ThreadMain(void *arg), void *ThreadMain(), or
// void ThreadMain(). That is not acceptable per C/C++ specification, but
// x86 compiler ABI extensions enable that to work. If you find the
// following line to crash, either change the signature to "proper" void
// *ThreadMain(void *arg) form, or try linking with the Emscripten linker
// flag -sEMULATE_FUNCTION_POINTER_CASTS to add in emulation for this x86
// ABI extension.
var result = WebAssembly.promising(getWasmTableEntry(ptr))(arg);
checkStackCookie();
function finish(result) {
if (keepRuntimeAlive()) {
EXITSTATUS = result;
} else {
__emscripten_thread_exit(result);
}
}
result = await result;
finish(result);
};
invokeEntryPoint.isAsync = true;
var noExitRuntime = true;
var registerTLSInit = tlsInitFunc => PThread.tlsInitFunctions.push(tlsInitFunc);
/**
* @param {number} ptr
* @param {number} value
* @param {string} type
*/ function setValue(ptr, value, type = "i8") {
if (type.endsWith("*")) type = "*";
switch (type) {
case "i1":
GROWABLE_HEAP_I8()[ptr] = value;
break;
case "i8":
GROWABLE_HEAP_I8()[ptr] = value;
break;
case "i16":
GROWABLE_HEAP_I16()[((ptr) >> 1)] = value;
break;
case "i32":
GROWABLE_HEAP_I32()[((ptr) >> 2)] = value;
break;
case "i64":
HEAP64[((ptr) >> 3)] = BigInt(value);
break;
case "float":
GROWABLE_HEAP_F32()[((ptr) >> 2)] = value;
break;
case "double":
GROWABLE_HEAP_F64()[((ptr) >> 3)] = value;
break;
case "*":
GROWABLE_HEAP_U32()[((ptr) >> 2)] = value;
break;
default:
abort(`invalid type for setValue: ${type}`);
}
}
var warnOnce = text => {
warnOnce.shown ||= {};
if (!warnOnce.shown[text]) {
warnOnce.shown[text] = 1;
if (ENVIRONMENT_IS_NODE) text = "warning: " + text;
err(text);
}
};
var UTF8Decoder = typeof TextDecoder != "undefined" ? new TextDecoder : undefined;
/**
* Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given
* array that contains uint8 values, returns a copy of that string as a
* Javascript String object.
* heapOrArray is either a regular array, or a JavaScript typed array view.
* @param {number=} idx
* @param {number=} maxBytesToRead
* @return {string}
*/ var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead = NaN) => {
var endIdx = idx + maxBytesToRead;
var endPtr = idx;
// TextDecoder needs to know the byte length in advance, it doesn't stop on
// null terminator by itself. Also, use the length info to avoid running tiny
// strings through TextDecoder, since .subarray() allocates garbage.
// (As a tiny code save trick, compare endPtr against endIdx using a negation,
// so that undefined/NaN means Infinity)
while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;
if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
return UTF8Decoder.decode(heapOrArray.buffer instanceof ArrayBuffer ? heapOrArray.subarray(idx, endPtr) : heapOrArray.slice(idx, endPtr));
}
var str = "";
// If building with TextDecoder, we have already computed the string length
// above, so test loop end condition against that
while (idx < endPtr) {
// For UTF8 byte structure, see:
// http://en.wikipedia.org/wiki/UTF-8#Description
// https://www.ietf.org/rfc/rfc2279.txt
// https://tools.ietf.org/html/rfc3629
var u0 = heapOrArray[idx++];
if (!(u0 & 128)) {
str += String.fromCharCode(u0);
continue;
}
var u1 = heapOrArray[idx++] & 63;
if ((u0 & 224) == 192) {
str += String.fromCharCode(((u0 & 31) << 6) | u1);
continue;
}
var u2 = heapOrArray[idx++] & 63;
if ((u0 & 240) == 224) {
u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
} else {
if ((u0 & 248) != 240) warnOnce("Invalid UTF-8 leading byte " + ptrToString(u0) + " encountered when deserializing a UTF-8 string in wasm memory to a JS string!");
u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63);
}
if (u0 < 65536) {
str += String.fromCharCode(u0);
} else {
var ch = u0 - 65536;
str += String.fromCharCode(55296 | (ch >> 10), 56320 | (ch & 1023));
}
}
return str;
};
/**
* Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the
* emscripten HEAP, returns a copy of that string as a Javascript String object.
*
* @param {number} ptr
* @param {number=} maxBytesToRead - An optional length that specifies the
* maximum number of bytes to read. You can omit this parameter to scan the
* string until the first 0 byte. If maxBytesToRead is passed, and the string
* at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the
* string will cut short at that byte index (i.e. maxBytesToRead will not
* produce a string of exact length [ptr, ptr+maxBytesToRead[) N.B. mixing
* frequent uses of UTF8ToString() with and without maxBytesToRead may throw
* JS JIT optimizations off, so it is worth to consider consistently using one
* @return {string}
*/ var UTF8ToString = (ptr, maxBytesToRead) => {
assert(typeof ptr == "number", `UTF8ToString expects a number (got ${typeof ptr})`);
return ptr ? UTF8ArrayToString(GROWABLE_HEAP_U8(), ptr, maxBytesToRead) : "";
};
var ___assert_fail = (condition, filename, line, func) => abort(`Assertion failed: ${UTF8ToString(condition)}, at: ` + [ filename ? UTF8ToString(filename) : "unknown filename", line, func ? UTF8ToString(func) : "unknown function" ]);
var PATH = {
isAbs: path => path.charAt(0) === "/",
splitPath: filename => {
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
return splitPathRe.exec(filename).slice(1);
},
normalizeArray: (parts, allowAboveRoot) => {
// if the path tries to go above the root, `up` ends up > 0
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === ".") {
parts.splice(i, 1);
} else if (last === "..") {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
}
// if the path is allowed to go above the root, restore leading ..s
if (allowAboveRoot) {
for (;up; up--) {
parts.unshift("..");
}
}
return parts;
},
normalize: path => {
var isAbsolute = PATH.isAbs(path), trailingSlash = path.slice(-1) === "/";
// Normalize the path
path = PATH.normalizeArray(path.split("/").filter(p => !!p), !isAbsolute).join("/");
if (!path && !isAbsolute) {
path = ".";
}
if (path && trailingSlash) {
path += "/";
}
return (isAbsolute ? "/" : "") + path;
},
dirname: path => {
var result = PATH.splitPath(path), root = result[0], dir = result[1];
if (!root && !dir) {
// No dirname whatsoever
return ".";
}
if (dir) {
// It has a dirname, strip trailing slash
dir = dir.slice(0, -1);
}
return root + dir;
},
basename: path => path && path.match(/([^\/]+|\/)\/*$/)[1],
join: (...paths) => PATH.normalize(paths.join("/")),
join2: (l, r) => PATH.normalize(l + "/" + r)
};
var initRandomFill = () => view => view.set(crypto.getRandomValues(new Uint8Array(view.byteLength)));
var randomFill = view => {
// Lazily init on the first invocation.
(randomFill = initRandomFill())(view);
};
var PATH_FS = {
resolve: (...args) => {
var resolvedPath = "", resolvedAbsolute = false;
for (var i = args.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = (i >= 0) ? args[i] : FS.cwd();
// Skip empty and invalid entries
if (typeof path != "string") {
throw new TypeError("Arguments to path.resolve must be strings");
} else if (!path) {
return "";
}
resolvedPath = path + "/" + resolvedPath;
resolvedAbsolute = PATH.isAbs(path);
}
// At this point the path should be resolved to a full absolute path, but
// handle relative paths to be safe (might happen when process.cwd() fails)
resolvedPath = PATH.normalizeArray(resolvedPath.split("/").filter(p => !!p), !resolvedAbsolute).join("/");
return ((resolvedAbsolute ? "/" : "") + resolvedPath) || ".";
},
relative: (from, to) => {
from = PATH_FS.resolve(from).slice(1);
to = PATH_FS.resolve(to).slice(1);
function trim(arr) {
var start = 0;
for (;start < arr.length; start++) {
if (arr[start] !== "") break;
}
var end = arr.length - 1;
for (;end >= 0; end--) {
if (arr[end] !== "") break;
}
if (start > end) return [];
return arr.slice(start, end - start + 1);
}
var fromParts = trim(from.split("/"));
var toParts = trim(to.split("/"));
var length = Math.min(fromParts.length, toParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (fromParts[i] !== toParts[i]) {
samePartsLength = i;
break;
}
}
var outputParts = [];
for (var i = samePartsLength; i < fromParts.length; i++) {
outputParts.push("..");
}
outputParts = outputParts.concat(toParts.slice(samePartsLength));
return outputParts.join("/");
}
};
var FS_stdin_getChar_buffer = [];
var lengthBytesUTF8 = str => {
var len = 0;
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
// unit, not a Unicode code point of the character! So decode
// UTF16->UTF32->UTF8.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var c = str.charCodeAt(i);
// possibly a lead surrogate
if (c <= 127) {
len++;
} else if (c <= 2047) {
len += 2;
} else if (c >= 55296 && c <= 57343) {
len += 4;
++i;
} else {
len += 3;
}
}
return len;
};
var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => {
assert(typeof str === "string", `stringToUTF8Array expects a string (got ${typeof str})`);
// Parameter maxBytesToWrite is not optional. Negative values, 0, null,
// undefined and false each don't write out any bytes.
if (!(maxBytesToWrite > 0)) return 0;
var startIdx = outIdx;
var endIdx = outIdx + maxBytesToWrite - 1;
// -1 for string null terminator.
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
// unit, not a Unicode code point of the character! So decode
// UTF16->UTF32->UTF8.
// See http://unicode.org/faq/utf_bom.html#utf16-3
// For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
// and https://www.ietf.org/rfc/rfc2279.txt
// and https://tools.ietf.org/html/rfc3629
var u = str.charCodeAt(i);
// possibly a lead surrogate
if (u >= 55296 && u <= 57343) {
var u1 = str.charCodeAt(++i);
u = 65536 + ((u & 1023) << 10) | (u1 & 1023);
}
if (u <= 127) {
if (outIdx >= endIdx) break;
heap[outIdx++] = u;
} else if (u <= 2047) {
if (outIdx + 1 >= endIdx) break;
heap[outIdx++] = 192 | (u >> 6);
heap[outIdx++] = 128 | (u & 63);
} else if (u <= 65535) {
if (outIdx + 2 >= endIdx) break;
heap[outIdx++] = 224 | (u >> 12);
heap[outIdx++] = 128 | ((u >> 6) & 63);
heap[outIdx++] = 128 | (u & 63);
} else {
if (outIdx + 3 >= endIdx) break;
if (u > 1114111) warnOnce("Invalid Unicode code point " + ptrToString(u) + " encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).");
heap[outIdx++] = 240 | (u >> 18);
heap[outIdx++] = 128 | ((u >> 12) & 63);
heap[outIdx++] = 128 | ((u >> 6) & 63);
heap[outIdx++] = 128 | (u & 63);
}
}
// Null-terminate the pointer to the buffer.
heap[outIdx] = 0;
return outIdx - startIdx;
};
/** @type {function(string, boolean=, number=)} */ var intArrayFromString = (stringy, dontAddNull, length) => {
var len = length > 0 ? length : lengthBytesUTF8(stringy) + 1;
var u8array = new Array(len);
var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
if (dontAddNull) u8array.length = numBytesWritten;
return u8array;
};
var FS_stdin_getChar = () => {
if (!FS_stdin_getChar_buffer.length) {
var result = null;
if (ENVIRONMENT_IS_NODE) {
// we will read data by chunks of BUFSIZE
var BUFSIZE = 256;
var buf = Buffer.alloc(BUFSIZE);
var bytesRead = 0;
// For some reason we must suppress a closure warning here, even though
// fd definitely exists on process.stdin, and is even the proper way to
// get the fd of stdin,
// https://github.com/nodejs/help/issues/2136#issuecomment-523649904
// This started to happen after moving this logic out of library_tty.js,
// so it is related to the surrounding code in some unclear manner.
/** @suppress {missingProperties} */ var fd = process.stdin.fd;
try {
bytesRead = fs.readSync(fd, buf, 0, BUFSIZE);
} catch (e) {
// Cross-platform differences: on Windows, reading EOF throws an
// exception, but on other OSes, reading EOF returns 0. Uniformize
// behavior by treating the EOF exception to return 0.
if (e.toString().includes("EOF")) bytesRead = 0; else throw e;
}
if (bytesRead > 0) {
result = buf.slice(0, bytesRead).toString("utf-8");
}
} else if (typeof window != "undefined" && typeof window.prompt == "function") {
// Browser.
result = window.prompt("Input: ");
// returns null on cancel
if (result !== null) {
result += "\n";
}
} else {}
if (!result) {
return null;
}
FS_stdin_getChar_buffer = intArrayFromString(result, true);
}
return FS_stdin_getChar_buffer.shift();
};
var TTY = {
ttys: [],
init() {},
shutdown() {},
register(dev, ops) {
TTY.ttys[dev] = {
input: [],
output: [],
ops
};
FS.registerDevice(dev, TTY.stream_ops);
},
stream_ops: {
open(stream) {
var tty = TTY.ttys[stream.node.rdev];
if (!tty) {
throw new FS.ErrnoError(43);
}
stream.tty = tty;
stream.seekable = false;
},
close(stream) {
// flush any pending line data
stream.tty.ops.fsync(stream.tty);
},
fsync(stream) {
stream.tty.ops.fsync(stream.tty);
},
read(stream, buffer, offset, length, pos) {
if (!stream.tty || !stream.tty.ops.get_char) {
throw new FS.ErrnoError(60);
}
var bytesRead = 0;
for (var i = 0; i < length; i++) {
var result;
try {
result = stream.tty.ops.get_char(stream.tty);
} catch (e) {
throw new FS.ErrnoError(29);
}
if (result === undefined && bytesRead === 0) {
throw new FS.ErrnoError(6);
}
if (result === null || result === undefined) break;
bytesRead++;
buffer[offset + i] = result;
}
if (bytesRead) {
stream.node.atime = Date.now();
}
return bytesRead;
},
write(stream, buffer, offset, length, pos) {
if (!stream.tty || !stream.tty.ops.put_char) {
throw new FS.ErrnoError(60);
}
try {
for (var i = 0; i < length; i++) {
stream.tty.ops.put_char(stream.tty, buffer[offset + i]);
}
} catch (e) {
throw new FS.ErrnoError(29);
}
if (length) {
stream.node.mtime = stream.node.ctime = Date.now();
}
return i;
}
},
default_tty_ops: {
get_char(tty) {
return FS_stdin_getChar();
},
put_char(tty, val) {
if (val === null || val === 10) {
out(UTF8ArrayToString(tty.output));
tty.output = [];
} else {
if (val != 0) tty.output.push(val);
}
},
fsync(tty) {
if (tty.output?.length > 0) {
out(UTF8ArrayToString(tty.output));
tty.output = [];
}
},
ioctl_tcgets(tty) {
// typical setting
return {
c_iflag: 25856,
c_oflag: 5,
c_cflag: 191,
c_lflag: 35387,
c_cc: [ 3, 28, 127, 21, 4, 0, 1, 0, 17, 19, 26, 0, 18, 15, 23, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
};
},
ioctl_tcsets(tty, optional_actions, data) {
// currently just ignore
return 0;
},
ioctl_tiocgwinsz(tty) {
return [ 24, 80 ];
}
},
default_tty1_ops: {
put_char(tty, val) {
if (val === null || val === 10) {
err(UTF8ArrayToString(tty.output));
tty.output = [];
} else {
if (val != 0) tty.output.push(val);
}
},
fsync(tty) {
if (tty.output?.length > 0) {
err(UTF8ArrayToString(tty.output));
tty.output = [];
}
}
}
};
var mmapAlloc = size => {
abort("internal error: mmapAlloc called but `emscripten_builtin_memalign` native symbol not exported");
};
var MEMFS = {
ops_table: null,
mount(mount) {
return MEMFS.createNode(null, "/", 16895, 0);
},
createNode(parent, name, mode, dev) {
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
// no supported
throw new FS.ErrnoError(63);
}
MEMFS.ops_table ||= {
dir: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
lookup: MEMFS.node_ops.lookup,
mknod: MEMFS.node_ops.mknod,
rename: MEMFS.node_ops.rename,
unlink: MEMFS.node_ops.unlink,
rmdir: MEMFS.node_ops.rmdir,
readdir: MEMFS.node_ops.readdir,
symlink: MEMFS.node_ops.symlink
},
stream: {
llseek: MEMFS.stream_ops.llseek
}
},
file: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
},
stream: {
llseek: MEMFS.stream_ops.llseek,
read: MEMFS.stream_ops.read,
write: MEMFS.stream_ops.write,
mmap: MEMFS.stream_ops.mmap,
msync: MEMFS.stream_ops.msync
}
},
link: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr,
readlink: MEMFS.node_ops.readlink
},
stream: {}
},
chrdev: {
node: {
getattr: MEMFS.node_ops.getattr,
setattr: MEMFS.node_ops.setattr
},
stream: FS.chrdev_stream_ops
}
};
var node = FS.createNode(parent, name, mode, dev);
if (FS.isDir(node.mode)) {
node.node_ops = MEMFS.ops_table.dir.node;
node.stream_ops = MEMFS.ops_table.dir.stream;
node.contents = {};
} else if (FS.isFile(node.mode)) {
node.node_ops = MEMFS.ops_table.file.node;
node.stream_ops = MEMFS.ops_table.file.stream;
node.usedBytes = 0;
// The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
// When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
// for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
// penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
node.contents = null;
} else if (FS.isLink(node.mode)) {
node.node_ops = MEMFS.ops_table.link.node;
node.stream_ops = MEMFS.ops_table.link.stream;
} else if (FS.isChrdev(node.mode)) {
node.node_ops = MEMFS.ops_table.chrdev.node;
node.stream_ops = MEMFS.ops_table.chrdev.stream;
}
node.atime = node.mtime = node.ctime = Date.now();
// add the new node to the parent
if (parent) {
parent.contents[name] = node;
parent.atime = parent.mtime = parent.ctime = node.atime;
}
return node;
},
getFileDataAsTypedArray(node) {
if (!node.contents) return new Uint8Array(0);
if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes);
// Make sure to not return excess unused bytes.
return new Uint8Array(node.contents);
},
expandFileStorage(node, newCapacity) {
var prevCapacity = node.contents ? node.contents.length : 0;
if (prevCapacity >= newCapacity) return;
// No need to expand, the storage was already large enough.
// Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
// For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
// avoid overshooting the allocation cap by a very large margin.
var CAPACITY_DOUBLING_MAX = 1024 * 1024;
newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2 : 1.125)) >>> 0);
if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256);
// At minimum allocate 256b for each file when expanding.
var oldContents = node.contents;
node.contents = new Uint8Array(newCapacity);
// Allocate new storage.
if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0);
},
resizeFileStorage(node, newSize) {
if (node.usedBytes == newSize) return;
if (newSize == 0) {
node.contents = null;
// Fully decommit when requesting a resize to zero.
node.usedBytes = 0;
} else {
var oldContents = node.contents;
node.contents = new Uint8Array(newSize);
// Allocate new storage.
if (oldContents) {
node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes)));
}
node.usedBytes = newSize;
}
},
node_ops: {
getattr(node) {
var attr = {};
// device numbers reuse inode numbers.
attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
attr.ino = node.id;
attr.mode = node.mode;
attr.nlink = 1;
attr.uid = 0;
attr.gid = 0;
attr.rdev = node.rdev;
if (FS.isDir(node.mode)) {
attr.size = 4096;
} else if (FS.isFile(node.mode)) {
attr.size = node.usedBytes;
} else if (FS.isLink(node.mode)) {
attr.size = node.link.length;
} else {
attr.size = 0;
}
attr.atime = new Date(node.atime);
attr.mtime = new Date(node.mtime);
attr.ctime = new Date(node.ctime);
// NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
// but this is not required by the standard.
attr.blksize = 4096;
attr.blocks = Math.ceil(attr.size / attr.blksize);
return attr;
},
setattr(node, attr) {
for (const key of [ "mode", "atime", "mtime", "ctime" ]) {
if (attr[key] != null) {
node[key] = attr[key];
}
}
if (attr.size !== undefined) {
MEMFS.resizeFileStorage(node, attr.size);
}
},
lookup(parent, name) {
throw new FS.ErrnoError(44);
},
mknod(parent, name, mode, dev) {
return MEMFS.createNode(parent, name, mode, dev);
},
rename(old_node, new_dir, new_name) {
var new_node;
try {
new_node = FS.lookupNode(new_dir, new_name);
} catch (e) {}
if (new_node) {
if (FS.isDir(old_node.mode)) {
// if we're overwriting a directory at new_name, make sure it's empty.
for (var i in new_node.contents) {
throw new FS.ErrnoError(55);
}
}
FS.hashRemoveNode(new_node);
}
// do the internal rewiring
delete old_node.parent.contents[old_node.name];
new_dir.contents[new_name] = old_node;
old_node.name = new_name;
new_dir.ctime = new_dir.mtime = old_node.parent.ctime = old_node.parent.mtime = Date.now();
},
unlink(parent, name) {
delete parent.contents[name];
parent.ctime = parent.mtime = Date.now();
},
rmdir(parent, name) {
var node = FS.lookupNode(parent, name);
for (var i in node.contents) {
throw new FS.ErrnoError(55);
}
delete parent.contents[name];
parent.ctime = parent.mtime = Date.now();
},
readdir(node) {
return [ ".", "..", ...Object.keys(node.contents) ];
},
symlink(parent, newname, oldpath) {
var node = MEMFS.createNode(parent, newname, 511 | 40960, 0);
node.link = oldpath;
return node;
},
readlink(node) {
if (!FS.isLink(node.mode)) {
throw new FS.ErrnoError(28);
}
return node.link;
}
},
stream_ops: {
read(stream, buffer, offset, length, position) {
var contents = stream.node.contents;
if (position >= stream.node.usedBytes) return 0;
var size = Math.min(stream.node.usedBytes - position, length);
assert(size >= 0);
if (size > 8 && contents.subarray) {
// non-trivial, and typed array
buffer.set(contents.subarray(position, position + size), offset);
} else {
for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
}
return size;
},
write(stream, buffer, offset, length, position, canOwn) {
// The data buffer should be a typed array view
assert(!(buffer instanceof ArrayBuffer));
// If the buffer is located in main memory (HEAP), and if
// memory can grow, we can't hold on to references of the
// memory buffer, as they may get invalidated. That means we
// need to do copy its contents.
if (buffer.buffer === GROWABLE_HEAP_I8().buffer) {
canOwn = false;
}
if (!length) return 0;
var node = stream.node;
node.mtime = node.ctime = Date.now();
if (buffer.subarray && (!node.contents || node.contents.subarray)) {
// This write is from a typed array to a typed array?
if (canOwn) {
assert(position === 0, "canOwn must imply no weird position inside the file");
node.contents = buffer.subarray(offset, offset + length);
node.usedBytes = length;
return length;
} else if (node.usedBytes === 0 && position === 0) {
// If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
node.contents = buffer.slice(offset, offset + length);
node.usedBytes = length;
return length;
} else if (position + length <= node.usedBytes) {
// Writing to an already allocated and used subrange of the file?
node.contents.set(buffer.subarray(offset, offset + length), position);
return length;
}
}
// Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
MEMFS.expandFileStorage(node, position + length);
if (node.contents.subarray && buffer.subarray) {
// Use typed array write which is available.
node.contents.set(buffer.subarray(offset, offset + length), position);
} else {
for (var i = 0; i < length; i++) {
node.contents[position + i] = buffer[offset + i];
}
}
node.usedBytes = Math.max(node.usedBytes, position + length);
return length;
},
llseek(stream, offset, whence) {
var position = offset;
if (whence === 1) {
position += stream.position;
} else if (whence === 2) {
if (FS.isFile(stream.node.mode)) {
position += stream.node.usedBytes;
}
}
if (position < 0) {
throw new FS.ErrnoError(28);
}
return position;
},
mmap(stream, length, position, prot, flags) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(43);
}
var ptr;
var allocated;
var contents = stream.node.contents;
// Only make a new copy when MAP_PRIVATE is specified.
if (!(flags & 2) && contents && contents.buffer === GROWABLE_HEAP_I8().buffer) {
// We can't emulate MAP_SHARED when the file is not backed by the
// buffer we're mapping to (e.g. the HEAP buffer).
allocated = false;
ptr = contents.byteOffset;
} else {
allocated = true;
ptr = mmapAlloc(length);
if (!ptr) {
throw new FS.ErrnoError(48);
}
if (contents) {
// Try to avoid unnecessary slices.
if (position > 0 || position + length < contents.length) {
if (contents.subarray) {
contents = contents.subarray(position, position + length);
} else {
contents = Array.prototype.slice.call(contents, position, position + length);
}
}
GROWABLE_HEAP_I8().set(contents, ptr);
}
}
return {
ptr,
allocated
};
},
msync(stream, buffer, offset, length, mmapFlags) {
MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
// should we check if bytesWritten and length are the same?
return 0;
}
}
};
var asyncLoad = async url => {
var arrayBuffer = await readAsync(url);
assert(arrayBuffer, `Loading data file "${url}" failed (no arrayBuffer).`);
return new Uint8Array(arrayBuffer);
};
asyncLoad.isAsync = true;
var FS_createDataFile = (...args) => FS.createDataFile(...args);
var preloadPlugins = [];
var FS_handledByPreloadPlugin = (byteArray, fullname, finish, onerror) => {
// Ensure plugins are ready.
if (typeof Browser != "undefined") Browser.init();
var handled = false;
preloadPlugins.forEach(plugin => {
if (handled) return;
if (plugin["canHandle"](fullname)) {
plugin["handle"](byteArray, fullname, finish, onerror);
handled = true;
}
});
return handled;
};
var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => {
// TODO we should allow people to just pass in a complete filename instead
// of parent and name being that we just join them anyways
var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
var dep = getUniqueRunDependency(`cp ${fullname}`);
// might have several active requests for the same fullname
function processData(byteArray) {
function finish(byteArray) {
preFinish?.();
if (!dontCreateFile) {
FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
}
onload?.();
removeRunDependency(dep);
}
if (FS_handledByPreloadPlugin(byteArray, fullname, finish, () => {
onerror?.();
removeRunDependency(dep);
})) {
return;
}
finish(byteArray);
}
addRunDependency(dep);
if (typeof url == "string") {
asyncLoad(url).then(processData, onerror);
} else {
processData(url);
}
};
var FS_modeStringToFlags = str => {
var flagModes = {
"r": 0,
"r+": 2,
"w": 512 | 64 | 1,
"w+": 512 | 64 | 2,
"a": 1024 | 64 | 1,
"a+": 1024 | 64 | 2
};
var flags = flagModes[str];
if (typeof flags == "undefined") {
throw new Error(`Unknown file open mode: ${str}`);
}
return flags;
};
var FS_getMode = (canRead, canWrite) => {
var mode = 0;
if (canRead) mode |= 292 | 73;
if (canWrite) mode |= 146;
return mode;
};
var strError = errno => UTF8ToString(_strerror(errno));
var ERRNO_CODES = {
"EPERM": 63,
"ENOENT": 44,
"ESRCH": 71,
"EINTR": 27,
"EIO": 29,
"ENXIO": 60,
"E2BIG": 1,
"ENOEXEC": 45,
"EBADF": 8,
"ECHILD": 12,
"EAGAIN": 6,
"EWOULDBLOCK": 6,
"ENOMEM": 48,
"EACCES": 2,
"EFAULT": 21,
"ENOTBLK": 105,
"EBUSY": 10,
"EEXIST": 20,
"EXDEV": 75,
"ENODEV": 43,
"ENOTDIR": 54,
"EISDIR": 31,
"EINVAL": 28,
"ENFILE": 41,
"EMFILE": 33,
"ENOTTY": 59,
"ETXTBSY": 74,
"EFBIG": 22,
"ENOSPC": 51,
"ESPIPE": 70,
"EROFS": 69,
"EMLINK": 34,
"EPIPE": 64,
"EDOM": 18,
"ERANGE": 68,
"ENOMSG": 49,
"EIDRM": 24,
"ECHRNG": 106,
"EL2NSYNC": 156,
"EL3HLT": 107,
"EL3RST": 108,
"ELNRNG": 109,
"EUNATCH": 110,
"ENOCSI": 111,
"EL2HLT": 112,
"EDEADLK": 16,
"ENOLCK": 46,
"EBADE": 113,
"EBADR": 114,
"EXFULL": 115,
"ENOANO": 104,
"EBADRQC": 103,
"EBADSLT": 102,
"EDEADLOCK": 16,
"EBFONT": 101,
"ENOSTR": 100,
"ENODATA": 116,
"ETIME": 117,
"ENOSR": 118,
"ENONET": 119,
"ENOPKG": 120,
"EREMOTE": 121,
"ENOLINK": 47,
"EADV": 122,
"ESRMNT": 123,
"ECOMM": 124,
"EPROTO": 65,
"EMULTIHOP": 36,
"EDOTDOT": 125,
"EBADMSG": 9,
"ENOTUNIQ": 126,
"EBADFD": 127,
"EREMCHG": 128,
"ELIBACC": 129,
"ELIBBAD": 130,
"ELIBSCN": 131,
"ELIBMAX": 132,
"ELIBEXEC": 133,
"ENOSYS": 52,
"ENOTEMPTY": 55,
"ENAMETOOLONG": 37,
"ELOOP": 32,
"EOPNOTSUPP": 138,
"EPFNOSUPPORT": 139,
"ECONNRESET": 15,
"ENOBUFS": 42,
"EAFNOSUPPORT": 5,
"EPROTOTYPE": 67,
"ENOTSOCK": 57,
"ENOPROTOOPT": 50,
"ESHUTDOWN": 140,
"ECONNREFUSED": 14,
"EADDRINUSE": 3,
"ECONNABORTED": 13,
"ENETUNREACH": 40,
"ENETDOWN": 38,
"ETIMEDOUT": 73,
"EHOSTDOWN": 142,
"EHOSTUNREACH": 23,
"EINPROGRESS": 26,
"EALREADY": 7,
"EDESTADDRREQ": 17,
"EMSGSIZE": 35,
"EPROTONOSUPPORT": 66,
"ESOCKTNOSUPPORT": 137,
"EADDRNOTAVAIL": 4,
"ENETRESET": 39,
"EISCONN": 30,
"ENOTCONN": 53,
"ETOOMANYREFS": 141,
"EUSERS": 136,
"EDQUOT": 19,
"ESTALE": 72,
"ENOTSUP": 138,
"ENOMEDIUM": 148,
"EILSEQ": 25,
"EOVERFLOW": 61,
"ECANCELED": 11,
"ENOTRECOVERABLE": 56,
"EOWNERDEAD": 62,
"ESTRPIPE": 135
};
var FS = {
root: null,
mounts: [],
devices: {},
streams: [],
nextInode: 1,
nameTable: null,
currentPath: "/",
initialized: false,
ignorePermissions: true,
filesystems: null,
syncFSRequests: 0,
readFiles: {},
ErrnoError: class extends Error {
name="ErrnoError";
// We set the `name` property to be able to identify `FS.ErrnoError`
// - the `name` is a standard ECMA-262 property of error objects. Kind of good to have it anyway.
// - when using PROXYFS, an error can come from an underlying FS
// as different FS objects have their own FS.ErrnoError each,
// the test `err instanceof FS.ErrnoError` won't detect an error coming from another filesystem, causing bugs.
// we'll use the reliable test `err.name == "ErrnoError"` instead
constructor(errno) {
super(runtimeInitialized ? strError(errno) : "");
this.errno = errno;
for (var key in ERRNO_CODES) {
if (ERRNO_CODES[key] === errno) {
this.code = key;
break;
}
}
}
},
FSStream: class {
shared={};
get object() {
return this.node;
}
set object(val) {
this.node = val;
}
get isRead() {
return (this.flags & 2097155) !== 1;
}
get isWrite() {
return (this.flags & 2097155) !== 0;
}
get isAppend() {
return (this.flags & 1024);
}
get flags() {
return this.shared.flags;
}
set flags(val) {
this.shared.flags = val;
}
get position() {
return this.shared.position;
}
set position(val) {
this.shared.position = val;
}
},
FSNode: class {
node_ops={};
stream_ops={};
readMode=292 | 73;
writeMode=146;
mounted=null;
constructor(parent, name, mode, rdev) {
if (!parent) {
parent = this;
}
this.parent = parent;
this.mount = parent.mount;
this.id = FS.nextInode++;
this.name = name;
this.mode = mode;
this.rdev = rdev;
this.atime = this.mtime = this.ctime = Date.now();
}
get read() {
return (this.mode & this.readMode) === this.readMode;
}
set read(val) {
val ? this.mode |= this.readMode : this.mode &= ~this.readMode;
}
get write() {
return (this.mode & this.writeMode) === this.writeMode;
}
set write(val) {
val ? this.mode |= this.writeMode : this.mode &= ~this.writeMode;
}
get isFolder() {
return FS.isDir(this.mode);
}
get isDevice() {
return FS.isChrdev(this.mode);
}
},
lookupPath(path, opts = {}) {
if (!path) {
throw new FS.ErrnoError(44);
}
opts.follow_mount ??= true;
if (!PATH.isAbs(path)) {
path = FS.cwd() + "/" + path;
}
// limit max consecutive symlinks to 40 (SYMLOOP_MAX).
linkloop: for (var nlinks = 0; nlinks < 40; nlinks++) {
// split the absolute path
var parts = path.split("/").filter(p => !!p);
// start at the root
var current = FS.root;
var current_path = "/";
for (var i = 0; i < parts.length; i++) {
var islast = (i === parts.length - 1);
if (islast && opts.parent) {
// stop resolving
break;
}
if (parts[i] === ".") {
continue;
}
if (parts[i] === "..") {
current_path = PATH.dirname(current_path);
if (FS.isRoot(current)) {
path = current_path + "/" + parts.slice(i + 1).join("/");
continue linkloop;
} else {
current = current.parent;
}
continue;
}
current_path = PATH.join2(current_path, parts[i]);
try {
current = FS.lookupNode(current, parts[i]);
} catch (e) {
// if noent_okay is true, suppress a ENOENT in the last component
// and return an object with an undefined node. This is needed for
// resolving symlinks in the path when creating a file.
if ((e?.errno === 44) && islast && opts.noent_okay) {
return {
path: current_path
};
}
throw e;
}
// jump to the mount's root node if this is a mountpoint
if (FS.isMountpoint(current) && (!islast || opts.follow_mount)) {
current = current.mounted.root;
}
// by default, lookupPath will not follow a symlink if it is the final path component.
// setting opts.follow = true will override this behavior.
if (FS.isLink(current.mode) && (!islast || opts.follow)) {
if (!current.node_ops.readlink) {
throw new FS.ErrnoError(52);
}
var link = current.node_ops.readlink(current);
if (!PATH.isAbs(link)) {
link = PATH.dirname(current_path) + "/" + link;
}
path = link + "/" + parts.slice(i + 1).join("/");
continue linkloop;
}
}
return {
path: current_path,
node: current
};
}
throw new FS.ErrnoError(32);
},
getPath(node) {
var path;
while (true) {
if (FS.isRoot(node)) {
var mount = node.mount.mountpoint;
if (!path) return mount;
return mount[mount.length - 1] !== "/" ? `${mount}/${path}` : mount + path;
}
path = path ? `${node.name}/${path}` : node.name;
node = node.parent;
}
},
hashName(parentid, name) {
var hash = 0;
for (var i = 0; i < name.length; i++) {
hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
}
return ((parentid + hash) >>> 0) % FS.nameTable.length;
},
hashAddNode(node) {
var hash = FS.hashName(node.parent.id, node.name);
node.name_next = FS.nameTable[hash];
FS.nameTable[hash] = node;
},
hashRemoveNode(node) {
var hash = FS.hashName(node.parent.id, node.name);
if (FS.nameTable[hash] === node) {
FS.nameTable[hash] = node.name_next;
} else {
var current = FS.nameTable[hash];
while (current) {
if (current.name_next === node) {
current.name_next = node.name_next;
break;
}
current = current.name_next;
}
}
},
lookupNode(parent, name) {
var errCode = FS.mayLookup(parent);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
var hash = FS.hashName(parent.id, name);
for (var node = FS.nameTable[hash]; node; node = node.name_next) {
var nodeName = node.name;
if (node.parent.id === parent.id && nodeName === name) {
return node;
}
}
// if we failed to find it in the cache, call into the VFS
return FS.lookup(parent, name);
},
createNode(parent, name, mode, rdev) {
assert(typeof parent == "object");
var node = new FS.FSNode(parent, name, mode, rdev);
FS.hashAddNode(node);
return node;
},
destroyNode(node) {
FS.hashRemoveNode(node);
},
isRoot(node) {
return node === node.parent;
},
isMountpoint(node) {
return !!node.mounted;
},
isFile(mode) {
return (mode & 61440) === 32768;
},
isDir(mode) {
return (mode & 61440) === 16384;
},
isLink(mode) {
return (mode & 61440) === 40960;
},
isChrdev(mode) {
return (mode & 61440) === 8192;
},
isBlkdev(mode) {
return (mode & 61440) === 24576;
},
isFIFO(mode) {
return (mode & 61440) === 4096;
},
isSocket(mode) {
return (mode & 49152) === 49152;
},
flagsToPermissionString(flag) {
var perms = [ "r", "w", "rw" ][flag & 3];
if ((flag & 512)) {
perms += "w";
}
return perms;
},
nodePermissions(node, perms) {
if (FS.ignorePermissions) {
return 0;
}
// return 0 if any user, group or owner bits are set.
if (perms.includes("r") && !(node.mode & 292)) {
return 2;
} else if (perms.includes("w") && !(node.mode & 146)) {
return 2;
} else if (perms.includes("x") && !(node.mode & 73)) {
return 2;
}
return 0;
},
mayLookup(dir) {
if (!FS.isDir(dir.mode)) return 54;
var errCode = FS.nodePermissions(dir, "x");
if (errCode) return errCode;
if (!dir.node_ops.lookup) return 2;
return 0;
},
mayCreate(dir, name) {
if (!FS.isDir(dir.mode)) {
return 54;
}
try {
var node = FS.lookupNode(dir, name);
return 20;
} catch (e) {}
return FS.nodePermissions(dir, "wx");
},
mayDelete(dir, name, isdir) {
var node;
try {
node = FS.lookupNode(dir, name);
} catch (e) {
return e.errno;
}
var errCode = FS.nodePermissions(dir, "wx");
if (errCode) {
return errCode;
}
if (isdir) {
if (!FS.isDir(node.mode)) {
return 54;
}
if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
return 10;
}
} else {
if (FS.isDir(node.mode)) {
return 31;
}
}
return 0;
},
mayOpen(node, flags) {
if (!node) {
return 44;
}
if (FS.isLink(node.mode)) {
return 32;
} else if (FS.isDir(node.mode)) {
if (FS.flagsToPermissionString(flags) !== "r" || (flags & (512 | 64))) {
// TODO: check for O_SEARCH? (== search for dir only)
return 31;
}
}
return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
},
checkOpExists(op, err) {
if (!op) {
throw new FS.ErrnoError(err);
}
return op;
},
MAX_OPEN_FDS: 4096,
nextfd() {
for (var fd = 0; fd <= FS.MAX_OPEN_FDS; fd++) {
if (!FS.streams[fd]) {
return fd;
}
}
throw new FS.ErrnoError(33);
},
getStreamChecked(fd) {
var stream = FS.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(8);
}
return stream;
},
getStream: fd => FS.streams[fd],
createStream(stream, fd = -1) {
assert(fd >= -1);
// clone it, so we can return an instance of FSStream
stream = Object.assign(new FS.FSStream, stream);
if (fd == -1) {
fd = FS.nextfd();
}
stream.fd = fd;
FS.streams[fd] = stream;
return stream;
},
closeStream(fd) {
FS.streams[fd] = null;
},
dupStream(origStream, fd = -1) {
var stream = FS.createStream(origStream, fd);
stream.stream_ops?.dup?.(stream);
return stream;
},
doSetAttr(stream, node, attr) {
var setattr = stream?.stream_ops.setattr;
var arg = setattr ? stream : node;
setattr ??= node.node_ops.setattr;
FS.checkOpExists(setattr, 63);
setattr(arg, attr);
},
chrdev_stream_ops: {
open(stream) {
var device = FS.getDevice(stream.node.rdev);
// override node's stream ops with the device's
stream.stream_ops = device.stream_ops;
// forward the open call
stream.stream_ops.open?.(stream);
},
llseek() {
throw new FS.ErrnoError(70);
}
},
major: dev => ((dev) >> 8),
minor: dev => ((dev) & 255),
makedev: (ma, mi) => ((ma) << 8 | (mi)),
registerDevice(dev, ops) {
FS.devices[dev] = {
stream_ops: ops
};
},
getDevice: dev => FS.devices[dev],
getMounts(mount) {
var mounts = [];
var check = [ mount ];
while (check.length) {
var m = check.pop();
mounts.push(m);
check.push(...m.mounts);
}
return mounts;
},
syncfs(populate, callback) {
if (typeof populate == "function") {
callback = populate;
populate = false;
}
FS.syncFSRequests++;
if (FS.syncFSRequests > 1) {
err(`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`);
}
var mounts = FS.getMounts(FS.root.mount);
var completed = 0;
function doCallback(errCode) {
assert(FS.syncFSRequests > 0);
FS.syncFSRequests--;
return callback(errCode);
}
function done(errCode) {
if (errCode) {
if (!done.errored) {
done.errored = true;
return doCallback(errCode);
}
return;
}
if (++completed >= mounts.length) {
doCallback(null);
}
}
// sync all mounts
mounts.forEach(mount => {
if (!mount.type.syncfs) {
return done(null);
}
mount.type.syncfs(mount, populate, done);
});
},
mount(type, opts, mountpoint) {
if (typeof type == "string") {
// The filesystem was not included, and instead we have an error
// message stored in the variable.
throw type;
}
var root = mountpoint === "/";
var pseudo = !mountpoint;
var node;
if (root && FS.root) {
throw new FS.ErrnoError(10);
} else if (!root && !pseudo) {
var lookup = FS.lookupPath(mountpoint, {
follow_mount: false
});
mountpoint = lookup.path;
// use the absolute path
node = lookup.node;
if (FS.isMountpoint(node)) {
throw new FS.ErrnoError(10);
}
if (!FS.isDir(node.mode)) {
throw new FS.ErrnoError(54);
}
}
var mount = {
type,
opts,
mountpoint,
mounts: []
};
// create a root node for the fs
var mountRoot = type.mount(mount);
mountRoot.mount = mount;
mount.root = mountRoot;
if (root) {
FS.root = mountRoot;
} else if (node) {
// set as a mountpoint
node.mounted = mount;
// add the new mount to the current mount's children
if (node.mount) {
node.mount.mounts.push(mount);
}
}
return mountRoot;
},
unmount(mountpoint) {
var lookup = FS.lookupPath(mountpoint, {
follow_mount: false
});
if (!FS.isMountpoint(lookup.node)) {
throw new FS.ErrnoError(28);
}
// destroy the nodes for this mount, and all its child mounts
var node = lookup.node;
var mount = node.mounted;
var mounts = FS.getMounts(mount);
Object.keys(FS.nameTable).forEach(hash => {
var current = FS.nameTable[hash];
while (current) {
var next = current.name_next;
if (mounts.includes(current.mount)) {
FS.destroyNode(current);
}
current = next;
}
});
// no longer a mountpoint
node.mounted = null;
// remove this mount from the child mounts
var idx = node.mount.mounts.indexOf(mount);
assert(idx !== -1);
node.mount.mounts.splice(idx, 1);
},
lookup(parent, name) {
return parent.node_ops.lookup(parent, name);
},
mknod(path, mode, dev) {
var lookup = FS.lookupPath(path, {
parent: true
});
var parent = lookup.node;
var name = PATH.basename(path);
if (!name) {
throw new FS.ErrnoError(28);
}
if (name === "." || name === "..") {
throw new FS.ErrnoError(20);
}
var errCode = FS.mayCreate(parent, name);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
if (!parent.node_ops.mknod) {
throw new FS.ErrnoError(63);
}
return parent.node_ops.mknod(parent, name, mode, dev);
},
statfs(path) {
return FS.statfsNode(FS.lookupPath(path, {
follow: true
}).node);
},
statfsStream(stream) {
// We keep a separate statfsStream function because noderawfs overrides
// it. In noderawfs, stream.node is sometimes null. Instead, we need to
// look at stream.path.
return FS.statfsNode(stream.node);
},
statfsNode(node) {
// NOTE: None of the defaults here are true. We're just returning safe and
// sane values. Currently nodefs and rawfs replace these defaults,
// other file systems leave them alone.
var rtn = {
bsize: 4096,
frsize: 4096,
blocks: 1e6,
bfree: 5e5,
bavail: 5e5,
files: FS.nextInode,
ffree: FS.nextInode - 1,
fsid: 42,
flags: 2,
namelen: 255
};
if (node.node_ops.statfs) {
Object.assign(rtn, node.node_ops.statfs(node.mount.opts.root));
}
return rtn;
},
create(path, mode = 438) {
mode &= 4095;
mode |= 32768;
return FS.mknod(path, mode, 0);
},
mkdir(path, mode = 511) {
mode &= 511 | 512;
mode |= 16384;
return FS.mknod(path, mode, 0);
},
mkdirTree(path, mode) {
var dirs = path.split("/");
var d = "";
for (var dir of dirs) {
if (!dir) continue;
if (d || PATH.isAbs(path)) d += "/";
d += dir;
try {
FS.mkdir(d, mode);
} catch (e) {
if (e.errno != 20) throw e;
}
}
},
mkdev(path, mode, dev) {
if (typeof dev == "undefined") {
dev = mode;
mode = 438;
}
mode |= 8192;
return FS.mknod(path, mode, dev);
},
symlink(oldpath, newpath) {
if (!PATH_FS.resolve(oldpath)) {
throw new FS.ErrnoError(44);
}
var lookup = FS.lookupPath(newpath, {
parent: true
});
var parent = lookup.node;
if (!parent) {
throw new FS.ErrnoError(44);
}
var newname = PATH.basename(newpath);
var errCode = FS.mayCreate(parent, newname);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
if (!parent.node_ops.symlink) {
throw new FS.ErrnoError(63);
}
return parent.node_ops.symlink(parent, newname, oldpath);
},
rename(old_path, new_path) {
var old_dirname = PATH.dirname(old_path);
var new_dirname = PATH.dirname(new_path);
var old_name = PATH.basename(old_path);
var new_name = PATH.basename(new_path);
// parents must exist
var lookup, old_dir, new_dir;
// let the errors from non existent directories percolate up
lookup = FS.lookupPath(old_path, {
parent: true
});
old_dir = lookup.node;
lookup = FS.lookupPath(new_path, {
parent: true
});
new_dir = lookup.node;
if (!old_dir || !new_dir) throw new FS.ErrnoError(44);
// need to be part of the same mount
if (old_dir.mount !== new_dir.mount) {
throw new FS.ErrnoError(75);
}
// source must exist
var old_node = FS.lookupNode(old_dir, old_name);
// old path should not be an ancestor of the new path
var relative = PATH_FS.relative(old_path, new_dirname);
if (relative.charAt(0) !== ".") {
throw new FS.ErrnoError(28);
}
// new path should not be an ancestor of the old path
relative = PATH_FS.relative(new_path, old_dirname);
if (relative.charAt(0) !== ".") {
throw new FS.ErrnoError(55);
}
// see if the new path already exists
var new_node;
try {
new_node = FS.lookupNode(new_dir, new_name);
} catch (e) {}
// early out if nothing needs to change
if (old_node === new_node) {
return;
}
// we'll need to delete the old entry
var isdir = FS.isDir(old_node.mode);
var errCode = FS.mayDelete(old_dir, old_name, isdir);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
// need delete permissions if we'll be overwriting.
// need create permissions if new doesn't already exist.
errCode = new_node ? FS.mayDelete(new_dir, new_name, isdir) : FS.mayCreate(new_dir, new_name);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
if (!old_dir.node_ops.rename) {
throw new FS.ErrnoError(63);
}
if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
throw new FS.ErrnoError(10);
}
// if we are going to change the parent, check write permissions
if (new_dir !== old_dir) {
errCode = FS.nodePermissions(old_dir, "w");
if (errCode) {
throw new FS.ErrnoError(errCode);
}
}
// remove the node from the lookup hash
FS.hashRemoveNode(old_node);
// do the underlying fs rename
try {
old_dir.node_ops.rename(old_node, new_dir, new_name);
// update old node (we do this here to avoid each backend
// needing to)
old_node.parent = new_dir;
} catch (e) {
throw e;
} finally {
// add the node back to the hash (in case node_ops.rename
// changed its name)
FS.hashAddNode(old_node);
}
},
rmdir(path) {
var lookup = FS.lookupPath(path, {
parent: true
});
var parent = lookup.node;
var name = PATH.basename(path);
var node = FS.lookupNode(parent, name);
var errCode = FS.mayDelete(parent, name, true);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
if (!parent.node_ops.rmdir) {
throw new FS.ErrnoError(63);
}
if (FS.isMountpoint(node)) {
throw new FS.ErrnoError(10);
}
parent.node_ops.rmdir(parent, name);
FS.destroyNode(node);
},
readdir(path) {
var lookup = FS.lookupPath(path, {
follow: true
});
var node = lookup.node;
var readdir = FS.checkOpExists(node.node_ops.readdir, 54);
return readdir(node);
},
unlink(path) {
var lookup = FS.lookupPath(path, {
parent: true
});
var parent = lookup.node;
if (!parent) {
throw new FS.ErrnoError(44);
}
var name = PATH.basename(path);
var node = FS.lookupNode(parent, name);
var errCode = FS.mayDelete(parent, name, false);
if (errCode) {
// According to POSIX, we should map EISDIR to EPERM, but
// we instead do what Linux does (and we must, as we use
// the musl linux libc).
throw new FS.ErrnoError(errCode);
}
if (!parent.node_ops.unlink) {
throw new FS.ErrnoError(63);
}
if (FS.isMountpoint(node)) {
throw new FS.ErrnoError(10);
}
parent.node_ops.unlink(parent, name);
FS.destroyNode(node);
},
readlink(path) {
var lookup = FS.lookupPath(path);
var link = lookup.node;
if (!link) {
throw new FS.ErrnoError(44);
}
if (!link.node_ops.readlink) {
throw new FS.ErrnoError(28);
}
return link.node_ops.readlink(link);
},
stat(path, dontFollow) {
var lookup = FS.lookupPath(path, {
follow: !dontFollow
});
var node = lookup.node;
var getattr = FS.checkOpExists(node.node_ops.getattr, 63);
return getattr(node);
},
fstat(fd) {
var stream = FS.getStreamChecked(fd);
var node = stream.node;
var getattr = stream.stream_ops.getattr;
var arg = getattr ? stream : node;
getattr ??= node.node_ops.getattr;
FS.checkOpExists(getattr, 63);
return getattr(arg);
},
lstat(path) {
return FS.stat(path, true);
},
doChmod(stream, node, mode, dontFollow) {
FS.doSetAttr(stream, node, {
mode: (mode & 4095) | (node.mode & ~4095),
ctime: Date.now(),
dontFollow
});
},
chmod(path, mode, dontFollow) {
var node;
if (typeof path == "string") {
var lookup = FS.lookupPath(path, {
follow: !dontFollow
});
node = lookup.node;
} else {
node = path;
}
FS.doChmod(null, node, mode, dontFollow);
},
lchmod(path, mode) {
FS.chmod(path, mode, true);
},
fchmod(fd, mode) {
var stream = FS.getStreamChecked(fd);
FS.doChmod(stream, stream.node, mode, false);
},
doChown(stream, node, dontFollow) {
FS.doSetAttr(stream, node, {
timestamp: Date.now(),
dontFollow
});
},
chown(path, uid, gid, dontFollow) {
var node;
if (typeof path == "string") {
var lookup = FS.lookupPath(path, {
follow: !dontFollow
});
node = lookup.node;
} else {
node = path;
}
FS.doChown(null, node, dontFollow);
},
lchown(path, uid, gid) {
FS.chown(path, uid, gid, true);
},
fchown(fd, uid, gid) {
var stream = FS.getStreamChecked(fd);
FS.doChown(stream, stream.node, false);
},
doTruncate(stream, node, len) {
if (FS.isDir(node.mode)) {
throw new FS.ErrnoError(31);
}
if (!FS.isFile(node.mode)) {
throw new FS.ErrnoError(28);
}
var errCode = FS.nodePermissions(node, "w");
if (errCode) {
throw new FS.ErrnoError(errCode);
}
FS.doSetAttr(stream, node, {
size: len,
timestamp: Date.now()
});
},
truncate(path, len) {
if (len < 0) {
throw new FS.ErrnoError(28);
}
var node;
if (typeof path == "string") {
var lookup = FS.lookupPath(path, {
follow: true
});
node = lookup.node;
} else {
node = path;
}
FS.doTruncate(null, node, len);
},
ftruncate(fd, len) {
var stream = FS.getStreamChecked(fd);
if (len < 0 || (stream.flags & 2097155) === 0) {
throw new FS.ErrnoError(28);
}
FS.doTruncate(stream, stream.node, len);
},
utime(path, atime, mtime) {
var lookup = FS.lookupPath(path, {
follow: true
});
var node = lookup.node;
var setattr = FS.checkOpExists(node.node_ops.setattr, 63);
setattr(node, {
atime,
mtime
});
},
open(path, flags, mode = 438) {
if (path === "") {
throw new FS.ErrnoError(44);
}
flags = typeof flags == "string" ? FS_modeStringToFlags(flags) : flags;
if ((flags & 64)) {
mode = (mode & 4095) | 32768;
} else {
mode = 0;
}
var node;
var isDirPath;
if (typeof path == "object") {
node = path;
} else {
isDirPath = path.endsWith("/");
// noent_okay makes it so that if the final component of the path
// doesn't exist, lookupPath returns `node: undefined`. `path` will be
// updated to point to the target of all symlinks.
var lookup = FS.lookupPath(path, {
follow: !(flags & 131072),
noent_okay: true
});
node = lookup.node;
path = lookup.path;
}
// perhaps we need to create the node
var created = false;
if ((flags & 64)) {
if (node) {
// if O_CREAT and O_EXCL are set, error out if the node already exists
if ((flags & 128)) {
throw new FS.ErrnoError(20);
}
} else if (isDirPath) {
throw new FS.ErrnoError(31);
} else {
// node doesn't exist, try to create it
// Ignore the permission bits here to ensure we can `open` this new
// file below. We use chmod below the apply the permissions once the
// file is open.
node = FS.mknod(path, mode | 511, 0);
created = true;
}
}
if (!node) {
throw new FS.ErrnoError(44);
}
// can't truncate a device
if (FS.isChrdev(node.mode)) {
flags &= ~512;
}
// if asked only for a directory, then this must be one
if ((flags & 65536) && !FS.isDir(node.mode)) {
throw new FS.ErrnoError(54);
}
// check permissions, if this is not a file we just created now (it is ok to
// create and write to a file with read-only permissions; it is read-only
// for later use)
if (!created) {
var errCode = FS.mayOpen(node, flags);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
}
// do truncation if necessary
if ((flags & 512) && !created) {
FS.truncate(node, 0);
}
// we've already handled these, don't pass down to the underlying vfs
flags &= ~(128 | 512 | 131072);
// register the stream with the filesystem
var stream = FS.createStream({
node,
path: FS.getPath(node),
// we want the absolute path to the node
flags,
seekable: true,
position: 0,
stream_ops: node.stream_ops,
// used by the file family libc calls (fopen, fwrite, ferror, etc.)
ungotten: [],
error: false
});
// call the new stream's open function
if (stream.stream_ops.open) {
stream.stream_ops.open(stream);
}
if (created) {
FS.chmod(node, mode & 511);
}
if (Module["logReadFiles"] && !(flags & 1)) {
if (!(path in FS.readFiles)) {
FS.readFiles[path] = 1;
}
}
return stream;
},
close(stream) {
if (FS.isClosed(stream)) {
throw new FS.ErrnoError(8);
}
if (stream.getdents) stream.getdents = null;
// free readdir state
try {
if (stream.stream_ops.close) {
stream.stream_ops.close(stream);
}
} catch (e) {
throw e;
} finally {
FS.closeStream(stream.fd);
}
stream.fd = null;
},
isClosed(stream) {
return stream.fd === null;
},
llseek(stream, offset, whence) {
if (FS.isClosed(stream)) {
throw new FS.ErrnoError(8);
}
if (!stream.seekable || !stream.stream_ops.llseek) {
throw new FS.ErrnoError(70);
}
if (whence != 0 && whence != 1 && whence != 2) {
throw new FS.ErrnoError(28);
}
stream.position = stream.stream_ops.llseek(stream, offset, whence);
stream.ungotten = [];
return stream.position;
},
read(stream, buffer, offset, length, position) {
assert(offset >= 0);
if (length < 0 || position < 0) {
throw new FS.ErrnoError(28);
}
if (FS.isClosed(stream)) {
throw new FS.ErrnoError(8);
}
if ((stream.flags & 2097155) === 1) {
throw new FS.ErrnoError(8);
}
if (FS.isDir(stream.node.mode)) {
throw new FS.ErrnoError(31);
}
if (!stream.stream_ops.read) {
throw new FS.ErrnoError(28);
}
var seeking = typeof position != "undefined";
if (!seeking) {
position = stream.position;
} else if (!stream.seekable) {
throw new FS.ErrnoError(70);
}
var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
if (!seeking) stream.position += bytesRead;
return bytesRead;
},
write(stream, buffer, offset, length, position, canOwn) {
assert(offset >= 0);
if (length < 0 || position < 0) {
throw new FS.ErrnoError(28);
}
if (FS.isClosed(stream)) {
throw new FS.ErrnoError(8);
}
if ((stream.flags & 2097155) === 0) {
throw new FS.ErrnoError(8);
}
if (FS.isDir(stream.node.mode)) {
throw new FS.ErrnoError(31);
}
if (!stream.stream_ops.write) {
throw new FS.ErrnoError(28);
}
if (stream.seekable && stream.flags & 1024) {
// seek to the end before writing in append mode
FS.llseek(stream, 0, 2);
}
var seeking = typeof position != "undefined";
if (!seeking) {
position = stream.position;
} else if (!stream.seekable) {
throw new FS.ErrnoError(70);
}
var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
if (!seeking) stream.position += bytesWritten;
return bytesWritten;
},
mmap(stream, length, position, prot, flags) {
// User requests writing to file (prot & PROT_WRITE != 0).
// Checking if we have permissions to write to the file unless
// MAP_PRIVATE flag is set. According to POSIX spec it is possible
// to write to file opened in read-only mode with MAP_PRIVATE flag,
// as all modifications will be visible only in the memory of
// the current process.
if ((prot & 2) !== 0 && (flags & 2) === 0 && (stream.flags & 2097155) !== 2) {
throw new FS.ErrnoError(2);
}
if ((stream.flags & 2097155) === 1) {
throw new FS.ErrnoError(2);
}
if (!stream.stream_ops.mmap) {
throw new FS.ErrnoError(43);
}
if (!length) {
throw new FS.ErrnoError(28);
}
return stream.stream_ops.mmap(stream, length, position, prot, flags);
},
msync(stream, buffer, offset, length, mmapFlags) {
assert(offset >= 0);
if (!stream.stream_ops.msync) {
return 0;
}
return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
},
ioctl(stream, cmd, arg) {
if (!stream.stream_ops.ioctl) {
throw new FS.ErrnoError(59);
}
return stream.stream_ops.ioctl(stream, cmd, arg);
},
readFile(path, opts = {}) {
opts.flags = opts.flags || 0;
opts.encoding = opts.encoding || "binary";
if (opts.encoding !== "utf8" && opts.encoding !== "binary") {
throw new Error(`Invalid encoding type "${opts.encoding}"`);
}
var ret;
var stream = FS.open(path, opts.flags);
var stat = FS.stat(path);
var length = stat.size;
var buf = new Uint8Array(length);
FS.read(stream, buf, 0, length, 0);
if (opts.encoding === "utf8") {
ret = UTF8ArrayToString(buf);
} else if (opts.encoding === "binary") {
ret = buf;
}
FS.close(stream);
return ret;
},
writeFile(path, data, opts = {}) {
opts.flags = opts.flags || 577;
var stream = FS.open(path, opts.flags, opts.mode);
if (typeof data == "string") {
var buf = new Uint8Array(lengthBytesUTF8(data) + 1);
var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn);
} else if (ArrayBuffer.isView(data)) {
FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
} else {
throw new Error("Unsupported data type");
}
FS.close(stream);
},
cwd: () => FS.currentPath,
chdir(path) {
var lookup = FS.lookupPath(path, {
follow: true
});
if (lookup.node === null) {
throw new FS.ErrnoError(44);
}
if (!FS.isDir(lookup.node.mode)) {
throw new FS.ErrnoError(54);
}
var errCode = FS.nodePermissions(lookup.node, "x");
if (errCode) {
throw new FS.ErrnoError(errCode);
}
FS.currentPath = lookup.path;
},
createDefaultDirectories() {
FS.mkdir("/tmp");
FS.mkdir("/home");
FS.mkdir("/home/web_user");
},
createDefaultDevices() {
// create /dev
FS.mkdir("/dev");
// setup /dev/null
FS.registerDevice(FS.makedev(1, 3), {
read: () => 0,
write: (stream, buffer, offset, length, pos) => length,
llseek: () => 0
});
FS.mkdev("/dev/null", FS.makedev(1, 3));
// setup /dev/tty and /dev/tty1
// stderr needs to print output using err() rather than out()
// so we register a second tty just for it.
TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
FS.mkdev("/dev/tty", FS.makedev(5, 0));
FS.mkdev("/dev/tty1", FS.makedev(6, 0));
// setup /dev/[u]random
// use a buffer to avoid overhead of individual crypto calls per byte
var randomBuffer = new Uint8Array(1024), randomLeft = 0;
var randomByte = () => {
if (randomLeft === 0) {
randomFill(randomBuffer);
randomLeft = randomBuffer.byteLength;
}
return randomBuffer[--randomLeft];
};
FS.createDevice("/dev", "random", randomByte);
FS.createDevice("/dev", "urandom", randomByte);
// we're not going to emulate the actual shm device,
// just create the tmp dirs that reside in it commonly
FS.mkdir("/dev/shm");
FS.mkdir("/dev/shm/tmp");
},
createSpecialDirectories() {
// create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the
// name of the stream for fd 6 (see test_unistd_ttyname)
FS.mkdir("/proc");
var proc_self = FS.mkdir("/proc/self");
FS.mkdir("/proc/self/fd");
FS.mount({
mount() {
var node = FS.createNode(proc_self, "fd", 16895, 73);
node.stream_ops = {
llseek: MEMFS.stream_ops.llseek
};
node.node_ops = {
lookup(parent, name) {
var fd = +name;
var stream = FS.getStreamChecked(fd);
var ret = {
parent: null,
mount: {
mountpoint: "fake"
},
node_ops: {
readlink: () => stream.path
},
id: fd + 1
};
ret.parent = ret;
// make it look like a simple root node
return ret;
},
readdir() {
return Array.from(FS.streams.entries()).filter(([k, v]) => v).map(([k, v]) => k.toString());
}
};
return node;
}
}, {}, "/proc/self/fd");
},
createStandardStreams(input, output, error) {
// TODO deprecate the old functionality of a single
// input / output callback and that utilizes FS.createDevice
// and instead require a unique set of stream ops
// by default, we symlink the standard streams to the
// default tty devices. however, if the standard streams
// have been overwritten we create a unique device for
// them instead.
if (input) {
FS.createDevice("/dev", "stdin", input);
} else {
FS.symlink("/dev/tty", "/dev/stdin");
}
if (output) {
FS.createDevice("/dev", "stdout", null, output);
} else {
FS.symlink("/dev/tty", "/dev/stdout");
}
if (error) {
FS.createDevice("/dev", "stderr", null, error);
} else {
FS.symlink("/dev/tty1", "/dev/stderr");
}
// open default streams for the stdin, stdout and stderr devices
var stdin = FS.open("/dev/stdin", 0);
var stdout = FS.open("/dev/stdout", 1);
var stderr = FS.open("/dev/stderr", 1);
assert(stdin.fd === 0, `invalid handle for stdin (${stdin.fd})`);
assert(stdout.fd === 1, `invalid handle for stdout (${stdout.fd})`);
assert(stderr.fd === 2, `invalid handle for stderr (${stderr.fd})`);
},
staticInit() {
FS.nameTable = new Array(4096);
FS.mount(MEMFS, {}, "/");
FS.createDefaultDirectories();
FS.createDefaultDevices();
FS.createSpecialDirectories();
FS.filesystems = {
"MEMFS": MEMFS
};
},
init(input, output, error) {
assert(!FS.initialized, "FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)");
FS.initialized = true;
// Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
input ??= Module["stdin"];
output ??= Module["stdout"];
error ??= Module["stderr"];
FS.createStandardStreams(input, output, error);
},
quit() {
FS.initialized = false;
// force-flush all streams, so we get musl std streams printed out
_fflush(0);
// close all of our streams
for (var stream of FS.streams) {
if (stream) {
FS.close(stream);
}
}
},
findObject(path, dontResolveLastLink) {
var ret = FS.analyzePath(path, dontResolveLastLink);
if (!ret.exists) {
return null;
}
return ret.object;
},
analyzePath(path, dontResolveLastLink) {
// operate from within the context of the symlink's target
try {
var lookup = FS.lookupPath(path, {
follow: !dontResolveLastLink
});
path = lookup.path;
} catch (e) {}
var ret = {
isRoot: false,
exists: false,
error: 0,
name: null,
path: null,
object: null,
parentExists: false,
parentPath: null,
parentObject: null
};
try {
var lookup = FS.lookupPath(path, {
parent: true
});
ret.parentExists = true;
ret.parentPath = lookup.path;
ret.parentObject = lookup.node;
ret.name = PATH.basename(path);
lookup = FS.lookupPath(path, {
follow: !dontResolveLastLink
});
ret.exists = true;
ret.path = lookup.path;
ret.object = lookup.node;
ret.name = lookup.node.name;
ret.isRoot = lookup.path === "/";
} catch (e) {
ret.error = e.errno;
}
return ret;
},
createPath(parent, path, canRead, canWrite) {
parent = typeof parent == "string" ? parent : FS.getPath(parent);
var parts = path.split("/").reverse();
while (parts.length) {
var part = parts.pop();
if (!part) continue;
var current = PATH.join2(parent, part);
try {
FS.mkdir(current);
} catch (e) {
if (e.errno != 20) throw e;
}
parent = current;
}
return current;
},
createFile(parent, name, properties, canRead, canWrite) {
var path = PATH.join2(typeof parent == "string" ? parent : FS.getPath(parent), name);
var mode = FS_getMode(canRead, canWrite);
return FS.create(path, mode);
},
createDataFile(parent, name, data, canRead, canWrite, canOwn) {
var path = name;
if (parent) {
parent = typeof parent == "string" ? parent : FS.getPath(parent);
path = name ? PATH.join2(parent, name) : parent;
}
var mode = FS_getMode(canRead, canWrite);
var node = FS.create(path, mode);
if (data) {
if (typeof data == "string") {
var arr = new Array(data.length);
for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
data = arr;
}
// make sure we can write to the file
FS.chmod(node, mode | 146);
var stream = FS.open(node, 577);
FS.write(stream, data, 0, data.length, 0, canOwn);
FS.close(stream);
FS.chmod(node, mode);
}
},
createDevice(parent, name, input, output) {
var path = PATH.join2(typeof parent == "string" ? parent : FS.getPath(parent), name);
var mode = FS_getMode(!!input, !!output);
FS.createDevice.major ??= 64;
var dev = FS.makedev(FS.createDevice.major++, 0);
// Create a fake device that a set of stream ops to emulate
// the old behavior.
FS.registerDevice(dev, {
open(stream) {
stream.seekable = false;
},
close(stream) {
// flush any pending line data
if (output?.buffer?.length) {
output(10);
}
},
read(stream, buffer, offset, length, pos) {
var bytesRead = 0;
for (var i = 0; i < length; i++) {
var result;
try {
result = input();
} catch (e) {
throw new FS.ErrnoError(29);
}
if (result === undefined && bytesRead === 0) {
throw new FS.ErrnoError(6);
}
if (result === null || result === undefined) break;
bytesRead++;
buffer[offset + i] = result;
}
if (bytesRead) {
stream.node.atime = Date.now();
}
return bytesRead;
},
write(stream, buffer, offset, length, pos) {
for (var i = 0; i < length; i++) {
try {
output(buffer[offset + i]);
} catch (e) {
throw new FS.ErrnoError(29);
}
}
if (length) {
stream.node.mtime = stream.node.ctime = Date.now();
}
return i;
}
});
return FS.mkdev(path, mode, dev);
},
forceLoadFile(obj) {
if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
if (typeof XMLHttpRequest != "undefined") {
throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
} else {
// Command-line.
try {
obj.contents = readBinary(obj.url);
obj.usedBytes = obj.contents.length;
} catch (e) {
throw new FS.ErrnoError(29);
}
}
},
createLazyFile(parent, name, url, canRead, canWrite) {
// Lazy chunked Uint8Array (implements get and length from Uint8Array).
// Actual getting is abstracted away for eventual reuse.
class LazyUint8Array {
lengthKnown=false;
chunks=[];
// Loaded chunks. Index is the chunk number
get(idx) {
if (idx > this.length - 1 || idx < 0) {
return undefined;
}
var chunkOffset = idx % this.chunkSize;
var chunkNum = (idx / this.chunkSize) | 0;
return this.getter(chunkNum)[chunkOffset];
}
setDataGetter(getter) {
this.getter = getter;
}
cacheLength() {
// Find length
var xhr = new XMLHttpRequest;
xhr.open("HEAD", url, false);
xhr.send(null);
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
var datalength = Number(xhr.getResponseHeader("Content-length"));
var header;
var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
var chunkSize = 1024 * 1024;
// Chunk size in bytes
if (!hasByteServing) chunkSize = datalength;
// Function to get a range from the remote URL.
var doXHR = (from, to) => {
if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
if (to > datalength - 1) throw new Error("only " + datalength + " bytes available! programmer error!");
// TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
var xhr = new XMLHttpRequest;
xhr.open("GET", url, false);
if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
// Some hints to the browser that we want binary data.
xhr.responseType = "arraybuffer";
if (xhr.overrideMimeType) {
xhr.overrideMimeType("text/plain; charset=x-user-defined");
}
xhr.send(null);
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
if (xhr.response !== undefined) {
return new Uint8Array(/** @type{Array<number>} */ (xhr.response || []));
}
return intArrayFromString(xhr.responseText || "", true);
};
var lazyArray = this;
lazyArray.setDataGetter(chunkNum => {
var start = chunkNum * chunkSize;
var end = (chunkNum + 1) * chunkSize - 1;
// including this byte
end = Math.min(end, datalength - 1);
// if datalength-1 is selected, this is the last block
if (typeof lazyArray.chunks[chunkNum] == "undefined") {
lazyArray.chunks[chunkNum] = doXHR(start, end);
}
if (typeof lazyArray.chunks[chunkNum] == "undefined") throw new Error("doXHR failed!");
return lazyArray.chunks[chunkNum];
});
if (usesGzip || !datalength) {
// if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
chunkSize = datalength = 1;
// this will force getter(0)/doXHR do download the whole file
datalength = this.getter(0).length;
chunkSize = datalength;
out("LazyFiles on gzip forces download of the whole file when length is accessed");
}
this._length = datalength;
this._chunkSize = chunkSize;
this.lengthKnown = true;
}
get length() {
if (!this.lengthKnown) {
this.cacheLength();
}
return this._length;
}
get chunkSize() {
if (!this.lengthKnown) {
this.cacheLength();
}
return this._chunkSize;
}
}
if (typeof XMLHttpRequest != "undefined") {
if (!ENVIRONMENT_IS_WORKER) throw "Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc";
var lazyArray = new LazyUint8Array;
var properties = {
isDevice: false,
contents: lazyArray
};
} else {
var properties = {
isDevice: false,
url
};
}
var node = FS.createFile(parent, name, properties, canRead, canWrite);
// This is a total hack, but I want to get this lazy file code out of the
// core of MEMFS. If we want to keep this lazy file concept I feel it should
// be its own thin LAZYFS proxying calls to MEMFS.
if (properties.contents) {
node.contents = properties.contents;
} else if (properties.url) {
node.contents = null;
node.url = properties.url;
}
// Add a function that defers querying the file size until it is asked the first time.
Object.defineProperties(node, {
usedBytes: {
get: function() {
return this.contents.length;
}
}
});
// override each stream op with one that tries to force load the lazy file first
var stream_ops = {};
var keys = Object.keys(node.stream_ops);
keys.forEach(key => {
var fn = node.stream_ops[key];
stream_ops[key] = (...args) => {
FS.forceLoadFile(node);
return fn(...args);
};
});
function writeChunks(stream, buffer, offset, length, position) {
var contents = stream.node.contents;
if (position >= contents.length) return 0;
var size = Math.min(contents.length - position, length);
assert(size >= 0);
if (contents.slice) {
// normal array
for (var i = 0; i < size; i++) {
buffer[offset + i] = contents[position + i];
}
} else {
for (var i = 0; i < size; i++) {
// LazyUint8Array from sync binary XHR
buffer[offset + i] = contents.get(position + i);
}
}
return size;
}
// use a custom read function
stream_ops.read = (stream, buffer, offset, length, position) => {
FS.forceLoadFile(node);
return writeChunks(stream, buffer, offset, length, position);
};
// use a custom mmap function
stream_ops.mmap = (stream, length, position, prot, flags) => {
FS.forceLoadFile(node);
var ptr = mmapAlloc(length);
if (!ptr) {
throw new FS.ErrnoError(48);
}
writeChunks(stream, GROWABLE_HEAP_I8(), ptr, length, position);
return {
ptr,
allocated: true
};
};
node.stream_ops = stream_ops;
return node;
},
absolutePath() {
abort("FS.absolutePath has been removed; use PATH_FS.resolve instead");
},
createFolder() {
abort("FS.createFolder has been removed; use FS.mkdir instead");
},
createLink() {
abort("FS.createLink has been removed; use FS.symlink instead");
},
joinPath() {
abort("FS.joinPath has been removed; use PATH.join instead");
},
mmapAlloc() {
abort("FS.mmapAlloc has been replaced by the top level function mmapAlloc");
},
standardizePath() {
abort("FS.standardizePath has been removed; use PATH.normalize instead");
}
};
var SYSCALLS = {
DEFAULT_POLLMASK: 5,
calculateAt(dirfd, path, allowEmpty) {
if (PATH.isAbs(path)) {
return path;
}
// relative path
var dir;
if (dirfd === -100) {
dir = FS.cwd();
} else {
var dirstream = SYSCALLS.getStreamFromFD(dirfd);
dir = dirstream.path;
}
if (path.length == 0) {
if (!allowEmpty) {
throw new FS.ErrnoError(44);
}
return dir;
}
return dir + "/" + path;
},
writeStat(buf, stat) {
GROWABLE_HEAP_I32()[((buf) >> 2)] = stat.dev;
GROWABLE_HEAP_I32()[(((buf) + (4)) >> 2)] = stat.mode;
GROWABLE_HEAP_U32()[(((buf) + (8)) >> 2)] = stat.nlink;
GROWABLE_HEAP_I32()[(((buf) + (12)) >> 2)] = stat.uid;
GROWABLE_HEAP_I32()[(((buf) + (16)) >> 2)] = stat.gid;
GROWABLE_HEAP_I32()[(((buf) + (20)) >> 2)] = stat.rdev;
HEAP64[(((buf) + (24)) >> 3)] = BigInt(stat.size);
GROWABLE_HEAP_I32()[(((buf) + (32)) >> 2)] = 4096;
GROWABLE_HEAP_I32()[(((buf) + (36)) >> 2)] = stat.blocks;
var atime = stat.atime.getTime();
var mtime = stat.mtime.getTime();
var ctime = stat.ctime.getTime();
HEAP64[(((buf) + (40)) >> 3)] = BigInt(Math.floor(atime / 1e3));
GROWABLE_HEAP_U32()[(((buf) + (48)) >> 2)] = (atime % 1e3) * 1e3 * 1e3;
HEAP64[(((buf) + (56)) >> 3)] = BigInt(Math.floor(mtime / 1e3));
GROWABLE_HEAP_U32()[(((buf) + (64)) >> 2)] = (mtime % 1e3) * 1e3 * 1e3;
HEAP64[(((buf) + (72)) >> 3)] = BigInt(Math.floor(ctime / 1e3));
GROWABLE_HEAP_U32()[(((buf) + (80)) >> 2)] = (ctime % 1e3) * 1e3 * 1e3;
HEAP64[(((buf) + (88)) >> 3)] = BigInt(stat.ino);
return 0;
},
writeStatFs(buf, stats) {
GROWABLE_HEAP_I32()[(((buf) + (4)) >> 2)] = stats.bsize;
GROWABLE_HEAP_I32()[(((buf) + (40)) >> 2)] = stats.bsize;
GROWABLE_HEAP_I32()[(((buf) + (8)) >> 2)] = stats.blocks;
GROWABLE_HEAP_I32()[(((buf) + (12)) >> 2)] = stats.bfree;
GROWABLE_HEAP_I32()[(((buf) + (16)) >> 2)] = stats.bavail;
GROWABLE_HEAP_I32()[(((buf) + (20)) >> 2)] = stats.files;
GROWABLE_HEAP_I32()[(((buf) + (24)) >> 2)] = stats.ffree;
GROWABLE_HEAP_I32()[(((buf) + (28)) >> 2)] = stats.fsid;
GROWABLE_HEAP_I32()[(((buf) + (44)) >> 2)] = stats.flags;
// ST_NOSUID
GROWABLE_HEAP_I32()[(((buf) + (36)) >> 2)] = stats.namelen;
},
doMsync(addr, stream, len, flags, offset) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(43);
}
if (flags & 2) {
// MAP_PRIVATE calls need not to be synced back to underlying fs
return 0;
}
var buffer = GROWABLE_HEAP_U8().slice(addr, addr + len);
FS.msync(stream, buffer, offset, len, flags);
},
getStreamFromFD(fd) {
var stream = FS.getStreamChecked(fd);
return stream;
},
varargs: undefined,
getStr(ptr) {
var ret = UTF8ToString(ptr);
return ret;
}
};
function ___syscall_dup(fd) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(2, 0, 1, fd);
try {
var old = SYSCALLS.getStreamFromFD(fd);
return FS.dupStream(old).fd;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
/** @suppress {duplicate } */ var syscallGetVarargI = () => {
assert(SYSCALLS.varargs != undefined);
// the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
var ret = GROWABLE_HEAP_I32()[((+SYSCALLS.varargs) >> 2)];
SYSCALLS.varargs += 4;
return ret;
};
var syscallGetVarargP = syscallGetVarargI;
function ___syscall_fcntl64(fd, cmd, varargs) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(3, 0, 1, fd, cmd, varargs);
SYSCALLS.varargs = varargs;
try {
var stream = SYSCALLS.getStreamFromFD(fd);
switch (cmd) {
case 0:
{
var arg = syscallGetVarargI();
if (arg < 0) {
return -28;
}
while (FS.streams[arg]) {
arg++;
}
var newStream;
newStream = FS.dupStream(stream, arg);
return newStream.fd;
}
case 1:
case 2:
return 0;
// FD_CLOEXEC makes no sense for a single process.
case 3:
return stream.flags;
case 4:
{
var arg = syscallGetVarargI();
stream.flags |= arg;
return 0;
}
case 12:
{
var arg = syscallGetVarargP();
var offset = 0;
// We're always unlocked.
GROWABLE_HEAP_I16()[(((arg) + (offset)) >> 1)] = 2;
return 0;
}
case 13:
case 14:
// Pretend that the locking is successful. These are process-level locks,
// and Emscripten programs are a single process. If we supported linking a
// filesystem between programs, we'd need to do more here.
// See https://github.com/emscripten-core/emscripten/issues/23697
return 0;
}
return -28;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_fstat64(fd, buf) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(4, 0, 1, fd, buf);
try {
return SYSCALLS.writeStat(buf, FS.fstat(fd));
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_ioctl(fd, op, varargs) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(5, 0, 1, fd, op, varargs);
SYSCALLS.varargs = varargs;
try {
var stream = SYSCALLS.getStreamFromFD(fd);
switch (op) {
case 21509:
{
if (!stream.tty) return -59;
return 0;
}
case 21505:
{
if (!stream.tty) return -59;
if (stream.tty.ops.ioctl_tcgets) {
var termios = stream.tty.ops.ioctl_tcgets(stream);
var argp = syscallGetVarargP();
GROWABLE_HEAP_I32()[((argp) >> 2)] = termios.c_iflag || 0;
GROWABLE_HEAP_I32()[(((argp) + (4)) >> 2)] = termios.c_oflag || 0;
GROWABLE_HEAP_I32()[(((argp) + (8)) >> 2)] = termios.c_cflag || 0;
GROWABLE_HEAP_I32()[(((argp) + (12)) >> 2)] = termios.c_lflag || 0;
for (var i = 0; i < 32; i++) {
GROWABLE_HEAP_I8()[(argp + i) + (17)] = termios.c_cc[i] || 0;
}
return 0;
}
return 0;
}
case 21510:
case 21511:
case 21512:
{
if (!stream.tty) return -59;
return 0;
}
case 21506:
case 21507:
case 21508:
{
if (!stream.tty) return -59;
if (stream.tty.ops.ioctl_tcsets) {
var argp = syscallGetVarargP();
var c_iflag = GROWABLE_HEAP_I32()[((argp) >> 2)];
var c_oflag = GROWABLE_HEAP_I32()[(((argp) + (4)) >> 2)];
var c_cflag = GROWABLE_HEAP_I32()[(((argp) + (8)) >> 2)];
var c_lflag = GROWABLE_HEAP_I32()[(((argp) + (12)) >> 2)];
var c_cc = [];
for (var i = 0; i < 32; i++) {
c_cc.push(GROWABLE_HEAP_I8()[(argp + i) + (17)]);
}
return stream.tty.ops.ioctl_tcsets(stream.tty, op, {
c_iflag,
c_oflag,
c_cflag,
c_lflag,
c_cc
});
}
return 0;
}
case 21519:
{
if (!stream.tty) return -59;
var argp = syscallGetVarargP();
GROWABLE_HEAP_I32()[((argp) >> 2)] = 0;
return 0;
}
case 21520:
{
if (!stream.tty) return -59;
return -28;
}
case 21531:
{
var argp = syscallGetVarargP();
return FS.ioctl(stream, op, argp);
}
case 21523:
{
// TODO: in theory we should write to the winsize struct that gets
// passed in, but for now musl doesn't read anything on it
if (!stream.tty) return -59;
if (stream.tty.ops.ioctl_tiocgwinsz) {
var winsize = stream.tty.ops.ioctl_tiocgwinsz(stream.tty);
var argp = syscallGetVarargP();
GROWABLE_HEAP_I16()[((argp) >> 1)] = winsize[0];
GROWABLE_HEAP_I16()[(((argp) + (2)) >> 1)] = winsize[1];
}
return 0;
}
case 21524:
{
// TODO: technically, this ioctl call should change the window size.
// but, since emscripten doesn't have any concept of a terminal window
// yet, we'll just silently throw it away as we do TIOCGWINSZ
if (!stream.tty) return -59;
return 0;
}
case 21515:
{
if (!stream.tty) return -59;
return 0;
}
default:
return -28;
}
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_lstat64(path, buf) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(6, 0, 1, path, buf);
try {
path = SYSCALLS.getStr(path);
return SYSCALLS.writeStat(buf, FS.lstat(path));
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_mkdirat(dirfd, path, mode) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(7, 0, 1, dirfd, path, mode);
try {
path = SYSCALLS.getStr(path);
path = SYSCALLS.calculateAt(dirfd, path);
FS.mkdir(path, mode, 0);
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_newfstatat(dirfd, path, buf, flags) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(8, 0, 1, dirfd, path, buf, flags);
try {
path = SYSCALLS.getStr(path);
var nofollow = flags & 256;
var allowEmpty = flags & 4096;
flags = flags & (~6400);
assert(!flags, `unknown flags in __syscall_newfstatat: ${flags}`);
path = SYSCALLS.calculateAt(dirfd, path, allowEmpty);
return SYSCALLS.writeStat(buf, nofollow ? FS.lstat(path) : FS.stat(path));
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_openat(dirfd, path, flags, varargs) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(9, 0, 1, dirfd, path, flags, varargs);
SYSCALLS.varargs = varargs;
try {
path = SYSCALLS.getStr(path);
path = SYSCALLS.calculateAt(dirfd, path);
var mode = varargs ? syscallGetVarargI() : 0;
return FS.open(path, flags, mode).fd;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
function ___syscall_stat64(path, buf) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(10, 0, 1, path, buf);
try {
path = SYSCALLS.getStr(path);
return SYSCALLS.writeStat(buf, FS.stat(path));
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return -e.errno;
}
}
var __abort_js = () => abort("native code called abort()");
var embindRepr = v => {
if (v === null) {
return "null";
}
var t = typeof v;
if (t === "object" || t === "array" || t === "function") {
return v.toString();
} else {
return "" + v;
}
};
var embind_init_charCodes = () => {
var codes = new Array(256);
for (var i = 0; i < 256; ++i) {
codes[i] = String.fromCharCode(i);
}
embind_charCodes = codes;
};
var embind_charCodes;
var readLatin1String = ptr => {
var ret = "";
var c = ptr;
while (GROWABLE_HEAP_U8()[c]) {
ret += embind_charCodes[GROWABLE_HEAP_U8()[c++]];
}
return ret;
};
var awaitingDependencies = {};
var registeredTypes = {};
var typeDependencies = {};
var BindingError = Module["BindingError"] = class BindingError extends Error {
constructor(message) {
super(message);
this.name = "BindingError";
}
};
var throwBindingError = message => {
throw new BindingError(message);
};
/** @param {Object=} options */ function sharedRegisterType(rawType, registeredInstance, options = {}) {
var name = registeredInstance.name;
if (!rawType) {
throwBindingError(`type "${name}" must have a positive integer typeid pointer`);
}
if (registeredTypes.hasOwnProperty(rawType)) {
if (options.ignoreDuplicateRegistrations) {
return;
} else {
throwBindingError(`Cannot register type '${name}' twice`);
}
}
registeredTypes[rawType] = registeredInstance;
delete typeDependencies[rawType];
if (awaitingDependencies.hasOwnProperty(rawType)) {
var callbacks = awaitingDependencies[rawType];
delete awaitingDependencies[rawType];
callbacks.forEach(cb => cb());
}
}
/** @param {Object=} options */ function registerType(rawType, registeredInstance, options = {}) {
if (registeredInstance.argPackAdvance === undefined) {
throw new TypeError("registerType registeredInstance requires argPackAdvance");
}
return sharedRegisterType(rawType, registeredInstance, options);
}
var integerReadValueFromPointer = (name, width, signed) => {
// integers are quite common, so generate very specialized functions
switch (width) {
case 1:
return signed ? pointer => GROWABLE_HEAP_I8()[pointer] : pointer => GROWABLE_HEAP_U8()[pointer];
case 2:
return signed ? pointer => GROWABLE_HEAP_I16()[((pointer) >> 1)] : pointer => GROWABLE_HEAP_U16()[((pointer) >> 1)];
case 4:
return signed ? pointer => GROWABLE_HEAP_I32()[((pointer) >> 2)] : pointer => GROWABLE_HEAP_U32()[((pointer) >> 2)];
case 8:
return signed ? pointer => HEAP64[((pointer) >> 3)] : pointer => HEAPU64[((pointer) >> 3)];
default:
throw new TypeError(`invalid integer width (${width}): ${name}`);
}
};
/** @suppress {globalThis} */ var __embind_register_bigint = (primitiveType, name, size, minRange, maxRange) => {
name = readLatin1String(name);
var isUnsignedType = (name.indexOf("u") != -1);
// maxRange comes through as -1 for uint64_t (see issue 13902). Work around that temporarily
if (isUnsignedType) {
maxRange = (1n << 64n) - 1n;
}
registerType(primitiveType, {
name,
"fromWireType": value => value,
"toWireType": function(destructors, value) {
if (typeof value != "bigint" && typeof value != "number") {
throw new TypeError(`Cannot convert "${embindRepr(value)}" to ${this.name}`);
}
if (typeof value == "number") {
value = BigInt(value);
}
if (value < minRange || value > maxRange) {
throw new TypeError(`Passing a number "${embindRepr(value)}" from JS side to C/C++ side to an argument of type "${name}", which is outside the valid range [${minRange}, ${maxRange}]!`);
}
return value;
},
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": integerReadValueFromPointer(name, size, !isUnsignedType),
destructorFunction: null
});
};
var GenericWireTypeSize = 8;
/** @suppress {globalThis} */ var __embind_register_bool = (rawType, name, trueValue, falseValue) => {
name = readLatin1String(name);
registerType(rawType, {
name,
"fromWireType": function(wt) {
// ambiguous emscripten ABI: sometimes return values are
// true or false, and sometimes integers (0 or 1)
return !!wt;
},
"toWireType": function(destructors, o) {
return o ? trueValue : falseValue;
},
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_U8()[pointer]);
},
destructorFunction: null
});
};
var emval_freelist = [];
var emval_handles = [];
var __emval_decref = handle => {
if (handle > 9 && 0 === --emval_handles[handle + 1]) {
assert(emval_handles[handle] !== undefined, `Decref for unallocated handle.`);
emval_handles[handle] = undefined;
emval_freelist.push(handle);
}
};
var count_emval_handles = () => emval_handles.length / 2 - 5 - emval_freelist.length;
var init_emval = () => {
// reserve 0 and some special values. These never get de-allocated.
emval_handles.push(0, 1, undefined, 1, null, 1, true, 1, false, 1);
assert(emval_handles.length === 5 * 2);
Module["count_emval_handles"] = count_emval_handles;
};
var Emval = {
toValue: handle => {
if (!handle) {
throwBindingError(`Cannot use deleted val. handle = ${handle}`);
}
// handle 2 is supposed to be `undefined`.
assert(handle === 2 || emval_handles[handle] !== undefined && handle % 2 === 0, `invalid handle: ${handle}`);
return emval_handles[handle];
},
toHandle: value => {
switch (value) {
case undefined:
return 2;
case null:
return 4;
case true:
return 6;
case false:
return 8;
default:
{
const handle = emval_freelist.pop() || emval_handles.length;
emval_handles[handle] = value;
emval_handles[handle + 1] = 1;
return handle;
}
}
}
};
/** @suppress {globalThis} */ function readPointer(pointer) {
return this["fromWireType"](GROWABLE_HEAP_U32()[((pointer) >> 2)]);
}
var EmValType = {
name: "emscripten::val",
"fromWireType": handle => {
var rv = Emval.toValue(handle);
__emval_decref(handle);
return rv;
},
"toWireType": (destructors, value) => Emval.toHandle(value),
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": readPointer,
destructorFunction: null
};
var __embind_register_emval = rawType => registerType(rawType, EmValType);
var ensureOverloadTable = (proto, methodName, humanName) => {
if (undefined === proto[methodName].overloadTable) {
var prevFunc = proto[methodName];
// Inject an overload resolver function that routes to the appropriate overload based on the number of arguments.
proto[methodName] = function(...args) {
// TODO This check can be removed in -O3 level "unsafe" optimizations.
if (!proto[methodName].overloadTable.hasOwnProperty(args.length)) {
throwBindingError(`Function '${humanName}' called with an invalid number of arguments (${args.length}) - expects one of (${proto[methodName].overloadTable})!`);
}
return proto[methodName].overloadTable[args.length].apply(this, args);
};
// Move the previous function into the overload table.
proto[methodName].overloadTable = [];
proto[methodName].overloadTable[prevFunc.argCount] = prevFunc;
}
};
/** @param {number=} numArguments */ var exposePublicSymbol = (name, value, numArguments) => {
if (Module.hasOwnProperty(name)) {
if (undefined === numArguments || (undefined !== Module[name].overloadTable && undefined !== Module[name].overloadTable[numArguments])) {
throwBindingError(`Cannot register public name '${name}' twice`);
}
// We are exposing a function with the same name as an existing function. Create an overload table and a function selector
// that routes between the two.
ensureOverloadTable(Module, name, name);
if (Module[name].overloadTable.hasOwnProperty(numArguments)) {
throwBindingError(`Cannot register multiple overloads of a function with the same number of arguments (${numArguments})!`);
}
// Add the new function into the overload table.
Module[name].overloadTable[numArguments] = value;
} else {
Module[name] = value;
Module[name].argCount = numArguments;
}
};
var enumReadValueFromPointer = (name, width, signed) => {
switch (width) {
case 1:
return signed ? function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_I8()[pointer]);
} : function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_U8()[pointer]);
};
case 2:
return signed ? function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_I16()[((pointer) >> 1)]);
} : function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_U16()[((pointer) >> 1)]);
};
case 4:
return signed ? function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_I32()[((pointer) >> 2)]);
} : function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_U32()[((pointer) >> 2)]);
};
default:
throw new TypeError(`invalid integer width (${width}): ${name}`);
}
};
/** @suppress {globalThis} */ var __embind_register_enum = (rawType, name, size, isSigned) => {
name = readLatin1String(name);
function ctor() {}
ctor.values = {};
registerType(rawType, {
name,
constructor: ctor,
"fromWireType": function(c) {
return this.constructor.values[c];
},
"toWireType": (destructors, c) => c.value,
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": enumReadValueFromPointer(name, size, isSigned),
destructorFunction: null
});
exposePublicSymbol(name, ctor);
};
var createNamedFunction = (name, func) => Object.defineProperty(func, "name", {
value: name
});
var getTypeName = type => {
var ptr = ___getTypeName(type);
var rv = readLatin1String(ptr);
_free(ptr);
return rv;
};
var requireRegisteredType = (rawType, humanName) => {
var impl = registeredTypes[rawType];
if (undefined === impl) {
throwBindingError(`${humanName} has unknown type ${getTypeName(rawType)}`);
}
return impl;
};
var __embind_register_enum_value = (rawEnumType, name, enumValue) => {
var enumType = requireRegisteredType(rawEnumType, "enum");
name = readLatin1String(name);
var Enum = enumType.constructor;
var Value = Object.create(enumType.constructor.prototype, {
value: {
value: enumValue
},
constructor: {
value: createNamedFunction(`${enumType.name}_${name}`, function() {})
}
});
Enum.values[enumValue] = Value;
Enum[name] = Value;
};
var floatReadValueFromPointer = (name, width) => {
switch (width) {
case 4:
return function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_F32()[((pointer) >> 2)]);
};
case 8:
return function(pointer) {
return this["fromWireType"](GROWABLE_HEAP_F64()[((pointer) >> 3)]);
};
default:
throw new TypeError(`invalid float width (${width}): ${name}`);
}
};
var __embind_register_float = (rawType, name, size) => {
name = readLatin1String(name);
registerType(rawType, {
name,
"fromWireType": value => value,
"toWireType": (destructors, value) => {
if (typeof value != "number" && typeof value != "boolean") {
throw new TypeError(`Cannot convert ${embindRepr(value)} to ${this.name}`);
}
// The VM will perform JS to Wasm value conversion, according to the spec:
// https://www.w3.org/TR/wasm-js-api-1/#towebassemblyvalue
return value;
},
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": floatReadValueFromPointer(name, size),
destructorFunction: null
});
};
/** @suppress {globalThis} */ var __embind_register_integer = (primitiveType, name, size, minRange, maxRange) => {
name = readLatin1String(name);
// LLVM doesn't have signed and unsigned 32-bit types, so u32 literals come
// out as 'i32 -1'. Always treat those as max u32.
if (maxRange === -1) {
maxRange = 4294967295;
}
var fromWireType = value => value;
if (minRange === 0) {
var bitshift = 32 - 8 * size;
fromWireType = value => (value << bitshift) >>> bitshift;
}
var isUnsignedType = (name.includes("unsigned"));
var checkAssertions = (value, toTypeName) => {
if (typeof value != "number" && typeof value != "boolean") {
throw new TypeError(`Cannot convert "${embindRepr(value)}" to ${toTypeName}`);
}
if (value < minRange || value > maxRange) {
throw new TypeError(`Passing a number "${embindRepr(value)}" from JS side to C/C++ side to an argument of type "${name}", which is outside the valid range [${minRange}, ${maxRange}]!`);
}
};
var toWireType;
if (isUnsignedType) {
toWireType = function(destructors, value) {
checkAssertions(value, this.name);
return value >>> 0;
};
} else {
toWireType = function(destructors, value) {
checkAssertions(value, this.name);
// The VM will perform JS to Wasm value conversion, according to the spec:
// https://www.w3.org/TR/wasm-js-api-1/#towebassemblyvalue
return value;
};
}
registerType(primitiveType, {
name,
"fromWireType": fromWireType,
"toWireType": toWireType,
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": integerReadValueFromPointer(name, size, minRange !== 0),
destructorFunction: null
});
};
var __embind_register_memory_view = (rawType, dataTypeIndex, name) => {
var typeMapping = [ Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, Uint32Array, Float32Array, Float64Array, BigInt64Array, BigUint64Array ];
var TA = typeMapping[dataTypeIndex];
function decodeMemoryView(handle) {
var size = GROWABLE_HEAP_U32()[((handle) >> 2)];
var data = GROWABLE_HEAP_U32()[(((handle) + (4)) >> 2)];
return new TA(GROWABLE_HEAP_I8().buffer, data, size);
}
name = readLatin1String(name);
registerType(rawType, {
name,
"fromWireType": decodeMemoryView,
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": decodeMemoryView
}, {
ignoreDuplicateRegistrations: true
});
};
var stringToUTF8 = (str, outPtr, maxBytesToWrite) => {
assert(typeof maxBytesToWrite == "number", "stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!");
return stringToUTF8Array(str, GROWABLE_HEAP_U8(), outPtr, maxBytesToWrite);
};
var __embind_register_std_string = (rawType, name) => {
name = readLatin1String(name);
var stdStringIsUTF8 = true;
registerType(rawType, {
name,
// For some method names we use string keys here since they are part of
// the public/external API and/or used by the runtime-generated code.
"fromWireType"(value) {
var length = GROWABLE_HEAP_U32()[((value) >> 2)];
var payload = value + 4;
var str;
if (stdStringIsUTF8) {
var decodeStartPtr = payload;
// Looping here to support possible embedded '0' bytes
for (var i = 0; i <= length; ++i) {
var currentBytePtr = payload + i;
if (i == length || GROWABLE_HEAP_U8()[currentBytePtr] == 0) {
var maxRead = currentBytePtr - decodeStartPtr;
var stringSegment = UTF8ToString(decodeStartPtr, maxRead);
if (str === undefined) {
str = stringSegment;
} else {
str += String.fromCharCode(0);
str += stringSegment;
}
decodeStartPtr = currentBytePtr + 1;
}
}
} else {
var a = new Array(length);
for (var i = 0; i < length; ++i) {
a[i] = String.fromCharCode(GROWABLE_HEAP_U8()[payload + i]);
}
str = a.join("");
}
_free(value);
return str;
},
"toWireType"(destructors, value) {
if (value instanceof ArrayBuffer) {
value = new Uint8Array(value);
}
var length;
var valueIsOfTypeString = (typeof value == "string");
// We accept `string` or array views with single byte elements
if (!(valueIsOfTypeString || (ArrayBuffer.isView(value) && value.BYTES_PER_ELEMENT == 1))) {
throwBindingError("Cannot pass non-string to std::string");
}
if (stdStringIsUTF8 && valueIsOfTypeString) {
length = lengthBytesUTF8(value);
} else {
length = value.length;
}
// assumes POINTER_SIZE alignment
var base = _malloc(4 + length + 1);
var ptr = base + 4;
GROWABLE_HEAP_U32()[((base) >> 2)] = length;
if (valueIsOfTypeString) {
if (stdStringIsUTF8) {
stringToUTF8(value, ptr, length + 1);
} else {
for (var i = 0; i < length; ++i) {
var charCode = value.charCodeAt(i);
if (charCode > 255) {
_free(base);
throwBindingError("String has UTF-16 code units that do not fit in 8 bits");
}
GROWABLE_HEAP_U8()[ptr + i] = charCode;
}
}
} else {
GROWABLE_HEAP_U8().set(value, ptr);
}
if (destructors !== null) {
destructors.push(_free, base);
}
return base;
},
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": readPointer,
destructorFunction(ptr) {
_free(ptr);
}
});
};
var UTF16Decoder = typeof TextDecoder != "undefined" ? new TextDecoder("utf-16le") : undefined;
var UTF16ToString = (ptr, maxBytesToRead) => {
assert(ptr % 2 == 0, "Pointer passed to UTF16ToString must be aligned to two bytes!");
var endPtr = ptr;
// TextDecoder needs to know the byte length in advance, it doesn't stop on
// null terminator by itself.
// Also, use the length info to avoid running tiny strings through
// TextDecoder, since .subarray() allocates garbage.
var idx = endPtr >> 1;
var maxIdx = idx + maxBytesToRead / 2;
// If maxBytesToRead is not passed explicitly, it will be undefined, and this
// will always evaluate to true. This saves on code size.
while (!(idx >= maxIdx) && GROWABLE_HEAP_U16()[idx]) ++idx;
endPtr = idx << 1;
if (endPtr - ptr > 32 && UTF16Decoder) return UTF16Decoder.decode(GROWABLE_HEAP_U8().slice(ptr, endPtr));
// Fallback: decode without UTF16Decoder
var str = "";
// If maxBytesToRead is not passed explicitly, it will be undefined, and the
// for-loop's condition will always evaluate to true. The loop is then
// terminated on the first null char.
for (var i = 0; !(i >= maxBytesToRead / 2); ++i) {
var codeUnit = GROWABLE_HEAP_I16()[(((ptr) + (i * 2)) >> 1)];
if (codeUnit == 0) break;
// fromCharCode constructs a character from a UTF-16 code unit, so we can
// pass the UTF16 string right through.
str += String.fromCharCode(codeUnit);
}
return str;
};
var stringToUTF16 = (str, outPtr, maxBytesToWrite) => {
assert(outPtr % 2 == 0, "Pointer passed to stringToUTF16 must be aligned to two bytes!");
assert(typeof maxBytesToWrite == "number", "stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!");
// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
maxBytesToWrite ??= 2147483647;
if (maxBytesToWrite < 2) return 0;
maxBytesToWrite -= 2;
// Null terminator.
var startPtr = outPtr;
var numCharsToWrite = (maxBytesToWrite < str.length * 2) ? (maxBytesToWrite / 2) : str.length;
for (var i = 0; i < numCharsToWrite; ++i) {
// charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
var codeUnit = str.charCodeAt(i);
// possibly a lead surrogate
GROWABLE_HEAP_I16()[((outPtr) >> 1)] = codeUnit;
outPtr += 2;
}
// Null-terminate the pointer to the HEAP.
GROWABLE_HEAP_I16()[((outPtr) >> 1)] = 0;
return outPtr - startPtr;
};
var lengthBytesUTF16 = str => str.length * 2;
var UTF32ToString = (ptr, maxBytesToRead) => {
assert(ptr % 4 == 0, "Pointer passed to UTF32ToString must be aligned to four bytes!");
var i = 0;
var str = "";
// If maxBytesToRead is not passed explicitly, it will be undefined, and this
// will always evaluate to true. This saves on code size.
while (!(i >= maxBytesToRead / 4)) {
var utf32 = GROWABLE_HEAP_I32()[(((ptr) + (i * 4)) >> 2)];
if (utf32 == 0) break;
++i;
// Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
// See http://unicode.org/faq/utf_bom.html#utf16-3
if (utf32 >= 65536) {
var ch = utf32 - 65536;
str += String.fromCharCode(55296 | (ch >> 10), 56320 | (ch & 1023));
} else {
str += String.fromCharCode(utf32);
}
}
return str;
};
var stringToUTF32 = (str, outPtr, maxBytesToWrite) => {
assert(outPtr % 4 == 0, "Pointer passed to stringToUTF32 must be aligned to four bytes!");
assert(typeof maxBytesToWrite == "number", "stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!");
// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
maxBytesToWrite ??= 2147483647;
if (maxBytesToWrite < 4) return 0;
var startPtr = outPtr;
var endPtr = startPtr + maxBytesToWrite - 4;
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var codeUnit = str.charCodeAt(i);
// possibly a lead surrogate
if (codeUnit >= 55296 && codeUnit <= 57343) {
var trailSurrogate = str.charCodeAt(++i);
codeUnit = 65536 + ((codeUnit & 1023) << 10) | (trailSurrogate & 1023);
}
GROWABLE_HEAP_I32()[((outPtr) >> 2)] = codeUnit;
outPtr += 4;
if (outPtr + 4 > endPtr) break;
}
// Null-terminate the pointer to the HEAP.
GROWABLE_HEAP_I32()[((outPtr) >> 2)] = 0;
return outPtr - startPtr;
};
var lengthBytesUTF32 = str => {
var len = 0;
for (var i = 0; i < str.length; ++i) {
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var codeUnit = str.charCodeAt(i);
if (codeUnit >= 55296 && codeUnit <= 57343) ++i;
// possibly a lead surrogate, so skip over the tail surrogate.
len += 4;
}
return len;
};
var __embind_register_std_wstring = (rawType, charSize, name) => {
name = readLatin1String(name);
var decodeString, encodeString, readCharAt, lengthBytesUTF;
if (charSize === 2) {
decodeString = UTF16ToString;
encodeString = stringToUTF16;
lengthBytesUTF = lengthBytesUTF16;
readCharAt = pointer => GROWABLE_HEAP_U16()[((pointer) >> 1)];
} else if (charSize === 4) {
decodeString = UTF32ToString;
encodeString = stringToUTF32;
lengthBytesUTF = lengthBytesUTF32;
readCharAt = pointer => GROWABLE_HEAP_U32()[((pointer) >> 2)];
}
registerType(rawType, {
name,
"fromWireType": value => {
// Code mostly taken from _embind_register_std_string fromWireType
var length = GROWABLE_HEAP_U32()[((value) >> 2)];
var str;
var decodeStartPtr = value + 4;
// Looping here to support possible embedded '0' bytes
for (var i = 0; i <= length; ++i) {
var currentBytePtr = value + 4 + i * charSize;
if (i == length || readCharAt(currentBytePtr) == 0) {
var maxReadBytes = currentBytePtr - decodeStartPtr;
var stringSegment = decodeString(decodeStartPtr, maxReadBytes);
if (str === undefined) {
str = stringSegment;
} else {
str += String.fromCharCode(0);
str += stringSegment;
}
decodeStartPtr = currentBytePtr + charSize;
}
}
_free(value);
return str;
},
"toWireType": (destructors, value) => {
if (!(typeof value == "string")) {
throwBindingError(`Cannot pass non-string to C++ string type ${name}`);
}
// assumes POINTER_SIZE alignment
var length = lengthBytesUTF(value);
var ptr = _malloc(4 + length + charSize);
GROWABLE_HEAP_U32()[((ptr) >> 2)] = length / charSize;
encodeString(value, ptr + 4, length + charSize);
if (destructors !== null) {
destructors.push(_free, ptr);
}
return ptr;
},
argPackAdvance: GenericWireTypeSize,
"readValueFromPointer": readPointer,
destructorFunction(ptr) {
_free(ptr);
}
});
};
var __embind_register_void = (rawType, name) => {
name = readLatin1String(name);
registerType(rawType, {
isVoid: true,
// void return values can be optimized out sometimes
name,
argPackAdvance: 0,
"fromWireType": () => undefined,
// TODO: assert if anything else is given?
"toWireType": (destructors, o) => undefined
});
};
var __emscripten_init_main_thread_js = tb => {
// Pass the thread address to the native code where they stored in wasm
// globals which act as a form of TLS. Global constructors trying
// to access this value will read the wrong value, but that is UB anyway.
__emscripten_thread_init(tb, /*is_main=*/ !ENVIRONMENT_IS_WORKER, /*is_runtime=*/ 1, /*can_block=*/ !ENVIRONMENT_IS_WEB, /*default_stacksize=*/ 65536, /*start_profiling=*/ false);
PThread.threadInitTLS();
};
var handleException = e => {
// Certain exception types we do not treat as errors since they are used for
// internal control flow.
// 1. ExitStatus, which is thrown by exit()
// 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others
// that wish to return to JS event loop.
if (e instanceof ExitStatus || e == "unwind") {
return EXITSTATUS;
}
checkStackCookie();
if (e instanceof WebAssembly.RuntimeError) {
if (_emscripten_stack_get_current() <= 0) {
err("Stack overflow detected. You can try increasing -sSTACK_SIZE (currently set to 65536)");
}
}
quit_(1, e);
};
var maybeExit = () => {
if (!keepRuntimeAlive()) {
try {
if (ENVIRONMENT_IS_PTHREAD) __emscripten_thread_exit(EXITSTATUS); else _exit(EXITSTATUS);
} catch (e) {
handleException(e);
}
}
};
var callUserCallback = func => {
if (ABORT) {
err("user callback triggered after runtime exited or application aborted. Ignoring.");
return;
}
try {
func();
maybeExit();
} catch (e) {
handleException(e);
}
};
var __emscripten_thread_mailbox_await = pthread_ptr => {
if (typeof Atomics.waitAsync === "function") {
// Wait on the pthread's initial self-pointer field because it is easy and
// safe to access from sending threads that need to notify the waiting
// thread.
// TODO: How to make this work with wasm64?
var wait = Atomics.waitAsync(GROWABLE_HEAP_I32(), ((pthread_ptr) >> 2), pthread_ptr);
assert(wait.async);
wait.value.then(checkMailbox);
var waitingAsync = pthread_ptr + 128;
Atomics.store(GROWABLE_HEAP_I32(), ((waitingAsync) >> 2), 1);
}
};
var checkMailbox = () => {
// Only check the mailbox if we have a live pthread runtime. We implement
// pthread_self to return 0 if there is no live runtime.
var pthread_ptr = _pthread_self();
if (pthread_ptr) {
// If we are using Atomics.waitAsync as our notification mechanism, wait
// for a notification before processing the mailbox to avoid missing any
// work that could otherwise arrive after we've finished processing the
// mailbox and before we're ready for the next notification.
__emscripten_thread_mailbox_await(pthread_ptr);
callUserCallback(__emscripten_check_mailbox);
}
};
var __emscripten_notify_mailbox_postmessage = (targetThread, currThreadId) => {
if (targetThread == currThreadId) {
setTimeout(checkMailbox);
} else if (ENVIRONMENT_IS_PTHREAD) {
postMessage({
targetThread,
cmd: "checkMailbox"
});
} else {
var worker = PThread.pthreads[targetThread];
if (!worker) {
err(`Cannot send message to thread with ID ${targetThread}, unknown thread ID!`);
return;
}
worker.postMessage({
cmd: "checkMailbox"
});
}
};
var proxiedJSCallArgs = [];
var __emscripten_receive_on_main_thread_js = (funcIndex, emAsmAddr, callingThread, numCallArgs, args) => {
// Sometimes we need to backproxy events to the calling thread (e.g.
// HTML5 DOM events handlers such as
// emscripten_set_mousemove_callback()), so keep track in a globally
// accessible variable about the thread that initiated the proxying.
numCallArgs /= 2;
proxiedJSCallArgs.length = numCallArgs;
var b = ((args) >> 3);
for (var i = 0; i < numCallArgs; i++) {
if (HEAP64[b + 2 * i]) {
// It's a BigInt.
proxiedJSCallArgs[i] = HEAP64[b + 2 * i + 1];
} else {
// It's a Number.
proxiedJSCallArgs[i] = GROWABLE_HEAP_F64()[b + 2 * i + 1];
}
}
// Proxied JS library funcs use funcIndex and EM_ASM functions use emAsmAddr
assert(!emAsmAddr);
var func = proxiedFunctionTable[funcIndex];
assert(!(funcIndex && emAsmAddr));
assert(func.length == numCallArgs, "Call args mismatch in _emscripten_receive_on_main_thread_js");
PThread.currentProxiedOperationCallerThread = callingThread;
var rtn = func(...proxiedJSCallArgs);
PThread.currentProxiedOperationCallerThread = 0;
// Proxied functions can return any type except bigint. All other types
// cooerce to f64/double (the return type of this function in C) but not
// bigint.
assert(typeof rtn != "bigint");
return rtn;
};
var __emscripten_thread_cleanup = thread => {
// Called when a thread needs to be cleaned up so it can be reused.
// A thread is considered reusable when it either returns from its
// entry point, calls pthread_exit, or acts upon a cancellation.
// Detached threads are responsible for calling this themselves,
// otherwise pthread_join is responsible for calling this.
if (!ENVIRONMENT_IS_PTHREAD) cleanupThread(thread); else postMessage({
cmd: "cleanupThread",
thread
});
};
var __emscripten_thread_set_strongref = thread => {
// Called when a thread needs to be strongly referenced.
// Currently only used for:
// - keeping the "main" thread alive in PROXY_TO_PTHREAD mode;
// - crashed threads that needs to propagate the uncaught exception
// back to the main thread.
if (ENVIRONMENT_IS_NODE) {
PThread.pthreads[thread].ref();
}
};
var INT53_MAX = 9007199254740992;
var INT53_MIN = -9007199254740992;
var bigintToI53Checked = num => (num < INT53_MIN || num > INT53_MAX) ? NaN : Number(num);
function __gmtime_js(time, tmPtr) {
time = bigintToI53Checked(time);
var date = new Date(time * 1e3);
GROWABLE_HEAP_I32()[((tmPtr) >> 2)] = date.getUTCSeconds();
GROWABLE_HEAP_I32()[(((tmPtr) + (4)) >> 2)] = date.getUTCMinutes();
GROWABLE_HEAP_I32()[(((tmPtr) + (8)) >> 2)] = date.getUTCHours();
GROWABLE_HEAP_I32()[(((tmPtr) + (12)) >> 2)] = date.getUTCDate();
GROWABLE_HEAP_I32()[(((tmPtr) + (16)) >> 2)] = date.getUTCMonth();
GROWABLE_HEAP_I32()[(((tmPtr) + (20)) >> 2)] = date.getUTCFullYear() - 1900;
GROWABLE_HEAP_I32()[(((tmPtr) + (24)) >> 2)] = date.getUTCDay();
var start = Date.UTC(date.getUTCFullYear(), 0, 1, 0, 0, 0, 0);
var yday = ((date.getTime() - start) / (1e3 * 60 * 60 * 24)) | 0;
GROWABLE_HEAP_I32()[(((tmPtr) + (28)) >> 2)] = yday;
}
var isLeapYear = year => year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);
var MONTH_DAYS_LEAP_CUMULATIVE = [ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 ];
var MONTH_DAYS_REGULAR_CUMULATIVE = [ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 ];
var ydayFromDate = date => {
var leap = isLeapYear(date.getFullYear());
var monthDaysCumulative = (leap ? MONTH_DAYS_LEAP_CUMULATIVE : MONTH_DAYS_REGULAR_CUMULATIVE);
var yday = monthDaysCumulative[date.getMonth()] + date.getDate() - 1;
// -1 since it's days since Jan 1
return yday;
};
function __localtime_js(time, tmPtr) {
time = bigintToI53Checked(time);
var date = new Date(time * 1e3);
GROWABLE_HEAP_I32()[((tmPtr) >> 2)] = date.getSeconds();
GROWABLE_HEAP_I32()[(((tmPtr) + (4)) >> 2)] = date.getMinutes();
GROWABLE_HEAP_I32()[(((tmPtr) + (8)) >> 2)] = date.getHours();
GROWABLE_HEAP_I32()[(((tmPtr) + (12)) >> 2)] = date.getDate();
GROWABLE_HEAP_I32()[(((tmPtr) + (16)) >> 2)] = date.getMonth();
GROWABLE_HEAP_I32()[(((tmPtr) + (20)) >> 2)] = date.getFullYear() - 1900;
GROWABLE_HEAP_I32()[(((tmPtr) + (24)) >> 2)] = date.getDay();
var yday = ydayFromDate(date) | 0;
GROWABLE_HEAP_I32()[(((tmPtr) + (28)) >> 2)] = yday;
GROWABLE_HEAP_I32()[(((tmPtr) + (36)) >> 2)] = -(date.getTimezoneOffset() * 60);
// Attention: DST is in December in South, and some regions don't have DST at all.
var start = new Date(date.getFullYear(), 0, 1);
var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset();
var winterOffset = start.getTimezoneOffset();
var dst = (summerOffset != winterOffset && date.getTimezoneOffset() == Math.min(winterOffset, summerOffset)) | 0;
GROWABLE_HEAP_I32()[(((tmPtr) + (32)) >> 2)] = dst;
}
var __tzset_js = (timezone, daylight, std_name, dst_name) => {
// TODO: Use (malleable) environment variables instead of system settings.
var currentYear = (new Date).getFullYear();
var winter = new Date(currentYear, 0, 1);
var summer = new Date(currentYear, 6, 1);
var winterOffset = winter.getTimezoneOffset();
var summerOffset = summer.getTimezoneOffset();
// Local standard timezone offset. Local standard time is not adjusted for
// daylight savings. This code uses the fact that getTimezoneOffset returns
// a greater value during Standard Time versus Daylight Saving Time (DST).
// Thus it determines the expected output during Standard Time, and it
// compares whether the output of the given date the same (Standard) or less
// (DST).
var stdTimezoneOffset = Math.max(winterOffset, summerOffset);
// timezone is specified as seconds west of UTC ("The external variable
// `timezone` shall be set to the difference, in seconds, between
// Coordinated Universal Time (UTC) and local standard time."), the same
// as returned by stdTimezoneOffset.
// See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html
GROWABLE_HEAP_U32()[((timezone) >> 2)] = stdTimezoneOffset * 60;
GROWABLE_HEAP_I32()[((daylight) >> 2)] = Number(winterOffset != summerOffset);
var extractZone = timezoneOffset => {
// Why inverse sign?
// Read here https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
var sign = timezoneOffset >= 0 ? "-" : "+";
var absOffset = Math.abs(timezoneOffset);
var hours = String(Math.floor(absOffset / 60)).padStart(2, "0");
var minutes = String(absOffset % 60).padStart(2, "0");
return `UTC${sign}${hours}${minutes}`;
};
var winterName = extractZone(winterOffset);
var summerName = extractZone(summerOffset);
assert(winterName);
assert(summerName);
assert(lengthBytesUTF8(winterName) <= 16, `timezone name truncated to fit in TZNAME_MAX (${winterName})`);
assert(lengthBytesUTF8(summerName) <= 16, `timezone name truncated to fit in TZNAME_MAX (${summerName})`);
if (summerOffset < winterOffset) {
// Northern hemisphere
stringToUTF8(winterName, std_name, 17);
stringToUTF8(summerName, dst_name, 17);
} else {
stringToUTF8(winterName, dst_name, 17);
stringToUTF8(summerName, std_name, 17);
}
};
var _emscripten_get_now = () => performance.timeOrigin + performance.now();
var _emscripten_date_now = () => Date.now();
var nowIsMonotonic = 1;
var checkWasiClock = clock_id => clock_id >= 0 && clock_id <= 3;
function _clock_time_get(clk_id, ignored_precision, ptime) {
ignored_precision = bigintToI53Checked(ignored_precision);
if (!checkWasiClock(clk_id)) {
return 28;
}
var now;
// all wasi clocks but realtime are monotonic
if (clk_id === 0) {
now = _emscripten_date_now();
} else if (nowIsMonotonic) {
now = _emscripten_get_now();
} else {
return 52;
}
// "now" is in ms, and wasi times are in ns.
var nsec = Math.round(now * 1e3 * 1e3);
HEAP64[((ptime) >> 3)] = BigInt(nsec);
return 0;
}
var _emscripten_check_blocking_allowed = () => {
if (ENVIRONMENT_IS_NODE) return;
if (ENVIRONMENT_IS_WORKER) return;
// Blocking in a worker/pthread is fine.
warnOnce("Blocking on the main thread is very dangerous, see https://emscripten.org/docs/porting/pthreads.html#blocking-on-the-main-browser-thread");
};
var runtimeKeepalivePush = () => {
runtimeKeepaliveCounter += 1;
};
var _emscripten_exit_with_live_runtime = () => {
runtimeKeepalivePush();
throw "unwind";
};
var getHeapMax = () => // Stay one Wasm page short of 4GB: while e.g. Chrome is able to allocate
// full 4GB Wasm memories, the size will wrap back to 0 bytes in Wasm side
// for any code that deals with heap sizes, which would require special
// casing all heap size related code to treat 0 specially.
2147483648;
var alignMemory = (size, alignment) => {
assert(alignment, "alignment argument is required");
return Math.ceil(size / alignment) * alignment;
};
var growMemory = size => {
var b = wasmMemory.buffer;
var pages = ((size - b.byteLength + 65535) / 65536) | 0;
try {
// round size grow request up to wasm page size (fixed 64KB per spec)
wasmMemory.grow(pages);
// .grow() takes a delta compared to the previous size
updateMemoryViews();
return 1;
} catch (e) {
err(`growMemory: Attempted to grow heap from ${b.byteLength} bytes to ${size} bytes, but got error: ${e}`);
}
};
var _emscripten_resize_heap = requestedSize => {
var oldSize = GROWABLE_HEAP_U8().length;
// With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
requestedSize >>>= 0;
// With multithreaded builds, races can happen (another thread might increase the size
// in between), so return a failure, and let the caller retry.
if (requestedSize <= oldSize) {
return false;
}
// Memory resize rules:
// 1. Always increase heap size to at least the requested size, rounded up
// to next page multiple.
// 2a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap
// geometrically: increase the heap size according to
// MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), At most
// overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB).
// 2b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap
// linearly: increase the heap size by at least
// MEMORY_GROWTH_LINEAR_STEP bytes.
// 3. Max size for the heap is capped at 2048MB-WASM_PAGE_SIZE, or by
// MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest
// 4. If we were unable to allocate as much memory, it may be due to
// over-eager decision to excessively reserve due to (3) above.
// Hence if an allocation fails, cut down on the amount of excess
// growth, in an attempt to succeed to perform a smaller allocation.
// A limit is set for how much we can grow. We should not exceed that
// (the wasm binary specifies it, so if we tried, we'd fail anyhow).
var maxHeapSize = getHeapMax();
if (requestedSize > maxHeapSize) {
err(`Cannot enlarge memory, requested ${requestedSize} bytes, but the limit is ${maxHeapSize} bytes!`);
return false;
}
// Loop through potential heap size increases. If we attempt a too eager
// reservation that fails, cut down on the attempted size and reserve a
// smaller bump instead. (max 3 times, chosen somewhat arbitrarily)
for (var cutDown = 1; cutDown <= 4; cutDown *= 2) {
var overGrownHeapSize = oldSize * (1 + .2 / cutDown);
// ensure geometric growth
// but limit overreserving (default to capping at +96MB overgrowth at most)
overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296);
var newSize = Math.min(maxHeapSize, alignMemory(Math.max(requestedSize, overGrownHeapSize), 65536));
var replacement = growMemory(newSize);
if (replacement) {
return true;
}
}
err(`Failed to grow the heap from ${oldSize} bytes to ${newSize} bytes, not enough memory!`);
return false;
};
var ENV = {};
var getExecutableName = () => thisProgram || "./this.program";
var getEnvStrings = () => {
if (!getEnvStrings.strings) {
// Default values.
// Browser language detection #8751
var lang = ((typeof navigator == "object" && navigator.languages && navigator.languages[0]) || "C").replace("-", "_") + ".UTF-8";
var env = {
"USER": "web_user",
"LOGNAME": "web_user",
"PATH": "/",
"PWD": "/",
"HOME": "/home/web_user",
"LANG": lang,
"_": getExecutableName()
};
// Apply the user-provided values, if any.
for (var x in ENV) {
// x is a key in ENV; if ENV[x] is undefined, that means it was
// explicitly set to be so. We allow user code to do that to
// force variables with default values to remain unset.
if (ENV[x] === undefined) delete env[x]; else env[x] = ENV[x];
}
var strings = [];
for (var x in env) {
strings.push(`${x}=${env[x]}`);
}
getEnvStrings.strings = strings;
}
return getEnvStrings.strings;
};
function _environ_get(__environ, environ_buf) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(11, 0, 1, __environ, environ_buf);
var bufSize = 0;
var envp = 0;
for (var string of getEnvStrings()) {
var ptr = environ_buf + bufSize;
GROWABLE_HEAP_U32()[(((__environ) + (envp)) >> 2)] = ptr;
bufSize += stringToUTF8(string, ptr, Infinity) + 1;
envp += 4;
}
return 0;
}
function _environ_sizes_get(penviron_count, penviron_buf_size) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(12, 0, 1, penviron_count, penviron_buf_size);
var strings = getEnvStrings();
GROWABLE_HEAP_U32()[((penviron_count) >> 2)] = strings.length;
var bufSize = 0;
for (var string of strings) {
bufSize += lengthBytesUTF8(string) + 1;
}
GROWABLE_HEAP_U32()[((penviron_buf_size) >> 2)] = bufSize;
return 0;
}
function _fd_close(fd) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(13, 0, 1, fd);
try {
var stream = SYSCALLS.getStreamFromFD(fd);
FS.close(stream);
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return e.errno;
}
}
/** @param {number=} offset */ var doReadv = (stream, iov, iovcnt, offset) => {
var ret = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = GROWABLE_HEAP_U32()[((iov) >> 2)];
var len = GROWABLE_HEAP_U32()[(((iov) + (4)) >> 2)];
iov += 8;
var curr = FS.read(stream, GROWABLE_HEAP_I8(), ptr, len, offset);
if (curr < 0) return -1;
ret += curr;
if (curr < len) break;
// nothing more to read
if (typeof offset != "undefined") {
offset += curr;
}
}
return ret;
};
function _fd_read(fd, iov, iovcnt, pnum) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(14, 0, 1, fd, iov, iovcnt, pnum);
try {
var stream = SYSCALLS.getStreamFromFD(fd);
var num = doReadv(stream, iov, iovcnt);
GROWABLE_HEAP_U32()[((pnum) >> 2)] = num;
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return e.errno;
}
}
function _fd_seek(fd, offset, whence, newOffset) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(15, 0, 1, fd, offset, whence, newOffset);
offset = bigintToI53Checked(offset);
try {
if (isNaN(offset)) return 61;
var stream = SYSCALLS.getStreamFromFD(fd);
FS.llseek(stream, offset, whence);
HEAP64[((newOffset) >> 3)] = BigInt(stream.position);
if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null;
// reset readdir state
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return e.errno;
}
}
/** @param {number=} offset */ var doWritev = (stream, iov, iovcnt, offset) => {
var ret = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = GROWABLE_HEAP_U32()[((iov) >> 2)];
var len = GROWABLE_HEAP_U32()[(((iov) + (4)) >> 2)];
iov += 8;
var curr = FS.write(stream, GROWABLE_HEAP_I8(), ptr, len, offset);
if (curr < 0) return -1;
ret += curr;
if (curr < len) {
// No more space to write.
break;
}
if (typeof offset != "undefined") {
offset += curr;
}
}
return ret;
};
function _fd_write(fd, iov, iovcnt, pnum) {
if (ENVIRONMENT_IS_PTHREAD) return proxyToMainThread(16, 0, 1, fd, iov, iovcnt, pnum);
try {
var stream = SYSCALLS.getStreamFromFD(fd);
var num = doWritev(stream, iov, iovcnt);
GROWABLE_HEAP_U32()[((pnum) >> 2)] = num;
return 0;
} catch (e) {
if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
return e.errno;
}
}
var runAndAbortIfError = func => {
try {
return func();
} catch (e) {
abort(e);
}
};
var sigToWasmTypes = sig => {
var typeNames = {
"i": "i32",
"j": "i64",
"f": "f32",
"d": "f64",
"e": "externref",
"p": "i32"
};
var type = {
parameters: [],
results: sig[0] == "v" ? [] : [ typeNames[sig[0]] ]
};
for (var i = 1; i < sig.length; ++i) {
assert(sig[i] in typeNames, "invalid signature char: " + sig[i]);
type.parameters.push(typeNames[sig[i]]);
}
return type;
};
var runtimeKeepalivePop = () => {
assert(runtimeKeepaliveCounter > 0);
runtimeKeepaliveCounter -= 1;
};
var Asyncify = {
instrumentWasmImports(imports) {
assert("Suspending" in WebAssembly, "JSPI not supported by current environment. Perhaps it needs to be enabled via flags?");
var importPattern = /^(invoke_.*|__asyncjs__.*)$/;
for (let [x, original] of Object.entries(imports)) {
if (typeof original == "function") {
let isAsyncifyImport = original.isAsync || importPattern.test(x);
// Wrap async imports with a suspending WebAssembly function.
if (isAsyncifyImport) {
imports[x] = original = new WebAssembly.Suspending(original);
}
}
}
},
instrumentWasmExports(exports) {
var exportPattern = /^(libxsltWasmExternalEntityLoader|xmlLoadResource|xmlCtxtNewInputFromUrl|xmlCtxtReadFile|xmlLoadExternalEntity|xmlNewEntityInputStream|xmlParseCtxtExternalEntity|xmlXPathCompOpEval|xmlReadFile|xmlReadMemory|xsltDocumentFunctionLoadDocument|xsltLoadDocument|xsltDocumentFunction|xsltDocDefaultLoaderFunc|xsltApplyStylesheet|xsltParseStylesheetFile|xsltLoadStylesheetPI|xsltParseStylesheetDoc|main|__main_argc_argv)$/;
Asyncify.asyncExports = new Set;
var ret = {};
for (let [x, original] of Object.entries(exports)) {
if (typeof original == "function") {
// Wrap all exports with a promising WebAssembly function.
let isAsyncifyExport = exportPattern.test(x);
if (isAsyncifyExport) {
Asyncify.asyncExports.add(original);
original = Asyncify.makeAsyncFunction(original);
}
ret[x] = (...args) => original(...args);
} else {
ret[x] = original;
}
}
return ret;
},
asyncExports: null,
isAsyncExport(func) {
return Asyncify.asyncExports?.has(func);
},
handleAsync: async startAsync => {
runtimeKeepalivePush();
try {
return await startAsync();
} finally {
runtimeKeepalivePop();
}
},
handleSleep(startAsync) {
return Asyncify.handleAsync(() => new Promise(startAsync));
},
makeAsyncFunction(original) {
return WebAssembly.promising(original);
}
};
var POINTER_SIZE = 4;
function getNativeTypeSize(type) {
// prettier-ignore
switch (type) {
case "i1":
case "i8":
case "u8":
return 1;
case "i16":
case "u16":
return 2;
case "i32":
case "u32":
return 4;
case "i64":
case "u64":
return 8;
case "float":
return 4;
case "double":
return 8;
default:
{
if (type[type.length - 1] === "*") {
return POINTER_SIZE;
}
if (type[0] === "i") {
const bits = Number(type.slice(1));
assert(bits % 8 === 0, `getNativeTypeSize invalid bits ${bits}, ${type} type`);
return bits / 8;
}
return 0;
}
}
}
var getCFunc = ident => {
var func = Module["_" + ident];
// closure exported function
assert(func, "Cannot call unknown function " + ident + ", make sure it is exported");
return func;
};
var writeArrayToMemory = (array, buffer) => {
assert(array.length >= 0, "writeArrayToMemory array must have a length (should be an array or typed array)");
GROWABLE_HEAP_I8().set(array, buffer);
};
var stringToUTF8OnStack = str => {
var size = lengthBytesUTF8(str) + 1;
var ret = stackAlloc(size);
stringToUTF8(str, ret, size);
return ret;
};
/**
* @param {string|null=} returnType
* @param {Array=} argTypes
* @param {Arguments|Array=} args
* @param {Object=} opts
*/ var ccall = (ident, returnType, argTypes, args, opts) => {
// For fast lookup of conversion functions
var toC = {
"string": str => {
var ret = 0;
if (str !== null && str !== undefined && str !== 0) {
// null string
ret = stringToUTF8OnStack(str);
}
return ret;
},
"array": arr => {
var ret = stackAlloc(arr.length);
writeArrayToMemory(arr, ret);
return ret;
}
};
function convertReturnValue(ret) {
if (returnType === "string") {
return UTF8ToString(ret);
}
if (returnType === "boolean") return Boolean(ret);
return ret;
}
var func = getCFunc(ident);
var cArgs = [];
var stack = 0;
assert(returnType !== "array", 'Return type should not be "array".');
if (args) {
for (var i = 0; i < args.length; i++) {
var converter = toC[argTypes[i]];
if (converter) {
if (stack === 0) stack = stackSave();
cArgs[i] = converter(args[i]);
} else {
cArgs[i] = args[i];
}
}
}
var ret = func(...cArgs);
function onDone(ret) {
if (stack !== 0) stackRestore(stack);
return convertReturnValue(ret);
}
var asyncMode = opts?.async;
if (asyncMode) return ret.then(onDone);
ret = onDone(ret);
return ret;
};
/**
* @param {string=} returnType
* @param {Array=} argTypes
* @param {Object=} opts
*/ var cwrap = (ident, returnType, argTypes, opts) => (...args) => ccall(ident, returnType, argTypes, args, opts);
var intArrayToString = array => {
var ret = [];
for (var i = 0; i < array.length; i++) {
var chr = array[i];
if (chr > 255) {
assert(false, `Character code ${chr} (${String.fromCharCode(chr)}) at offset ${i} not in 0x00-0xFF.`);
chr &= 255;
}
ret.push(String.fromCharCode(chr));
}
return ret.join("");
};
var stringToNewUTF8 = str => {
var size = lengthBytesUTF8(str) + 1;
var ret = _malloc(size);
if (ret) stringToUTF8(str, ret, size);
return ret;
};
var FS_createPath = (...args) => FS.createPath(...args);
var FS_unlink = (...args) => FS.unlink(...args);
var FS_createLazyFile = (...args) => FS.createLazyFile(...args);
var FS_createDevice = (...args) => FS.createDevice(...args);
PThread.init();
FS.createPreloadedFile = FS_createPreloadedFile;
FS.staticInit();
embind_init_charCodes();
init_emval();
// End JS library code
// include: postlibrary.js
// This file is included after the automatically-generated JS library code
// but before the wasm module is created.
{
// With WASM_ESM_INTEGRATION this has to happen at the top level and not
// delayed until processModuleArgs.
initMemory();
// Begin ATMODULES hooks
if (Module["noExitRuntime"]) noExitRuntime = Module["noExitRuntime"];
if (Module["preloadPlugins"]) preloadPlugins = Module["preloadPlugins"];
if (Module["print"]) out = Module["print"];
if (Module["printErr"]) err = Module["printErr"];
if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];
// End ATMODULES hooks
checkIncomingModuleAPI();
if (Module["arguments"]) arguments_ = Module["arguments"];
if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
// Assertions on removed incoming Module JS APIs.
assert(typeof Module["memoryInitializerPrefixURL"] == "undefined", "Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead");
assert(typeof Module["pthreadMainPrefixURL"] == "undefined", "Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead");
assert(typeof Module["cdInitializerPrefixURL"] == "undefined", "Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead");
assert(typeof Module["filePackagePrefixURL"] == "undefined", "Module.filePackagePrefixURL option was removed, use Module.locateFile instead");
assert(typeof Module["read"] == "undefined", "Module.read option was removed");
assert(typeof Module["readAsync"] == "undefined", "Module.readAsync option was removed (modify readAsync in JS)");
assert(typeof Module["readBinary"] == "undefined", "Module.readBinary option was removed (modify readBinary in JS)");
assert(typeof Module["setWindowTitle"] == "undefined", "Module.setWindowTitle option was removed (modify emscripten_set_window_title in JS)");
assert(typeof Module["TOTAL_MEMORY"] == "undefined", "Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY");
assert(typeof Module["ENVIRONMENT"] == "undefined", "Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)");
assert(typeof Module["STACK_SIZE"] == "undefined", "STACK_SIZE can no longer be set at runtime. Use -sSTACK_SIZE at link time");
}
// Begin runtime exports
Module["addRunDependency"] = addRunDependency;
Module["removeRunDependency"] = removeRunDependency;
Module["ptrToString"] = ptrToString;
Module["warnOnce"] = warnOnce;
Module["handleException"] = handleException;
Module["getNativeTypeSize"] = getNativeTypeSize;
Module["ccall"] = ccall;
Module["cwrap"] = cwrap;
Module["setValue"] = setValue;
Module["getValue"] = getValue;
Module["UTF8ToString"] = UTF8ToString;
Module["stringToUTF8Array"] = stringToUTF8Array;
Module["stringToUTF8"] = stringToUTF8;
Module["lengthBytesUTF8"] = lengthBytesUTF8;
Module["intArrayFromString"] = intArrayFromString;
Module["intArrayToString"] = intArrayToString;
Module["stringToNewUTF8"] = stringToNewUTF8;
Module["writeArrayToMemory"] = writeArrayToMemory;
Module["FS_createPreloadedFile"] = FS_createPreloadedFile;
Module["FS_unlink"] = FS_unlink;
Module["FS_createPath"] = FS_createPath;
Module["FS_createDevice"] = FS_createDevice;
Module["FS"] = FS;
Module["FS_createDataFile"] = FS_createDataFile;
Module["FS_createLazyFile"] = FS_createLazyFile;
var missingLibrarySymbols = [ "writeI53ToI64", "writeI53ToI64Clamped", "writeI53ToI64Signaling", "writeI53ToU64Clamped", "writeI53ToU64Signaling", "readI53FromI64", "readI53FromU64", "convertI32PairToI53", "convertI32PairToI53Checked", "convertU32PairToI53", "getTempRet0", "setTempRet0", "zeroMemory", "inetPton4", "inetNtop4", "inetPton6", "inetNtop6", "readSockaddr", "writeSockaddr", "emscriptenLog", "readEmAsmArgs", "jstoi_q", "listenOnce", "autoResumeAudioContext", "getDynCaller", "dynCall", "asmjsMangle", "HandleAllocator", "addOnInit", "addOnPostCtor", "addOnPreMain", "addOnExit", "STACK_SIZE", "STACK_ALIGN", "ASSERTIONS", "uleb128Encode", "generateFuncType", "convertJsFunctionToWasm", "getEmptyTableSlot", "updateTableMap", "getFunctionAddress", "addFunction", "removeFunction", "reallyNegative", "unSign", "strLen", "reSign", "formatString", "AsciiToString", "stringToAscii", "registerKeyEventCallback", "maybeCStringToJsString", "findEventTarget", "getBoundingClientRect", "fillMouseEventData", "registerMouseEventCallback", "registerWheelEventCallback", "registerUiEventCallback", "registerFocusEventCallback", "fillDeviceOrientationEventData", "registerDeviceOrientationEventCallback", "fillDeviceMotionEventData", "registerDeviceMotionEventCallback", "screenOrientation", "fillOrientationChangeEventData", "registerOrientationChangeEventCallback", "fillFullscreenChangeEventData", "registerFullscreenChangeEventCallback", "JSEvents_requestFullscreen", "JSEvents_resizeCanvasForFullscreen", "registerRestoreOldStyle", "hideEverythingExceptGivenElement", "restoreHiddenElements", "setLetterbox", "softFullscreenResizeWebGLRenderTarget", "doRequestFullscreen", "fillPointerlockChangeEventData", "registerPointerlockChangeEventCallback", "registerPointerlockErrorEventCallback", "requestPointerLock", "fillVisibilityChangeEventData", "registerVisibilityChangeEventCallback", "registerTouchEventCallback", "fillGamepadEventData", "registerGamepadEventCallback", "registerBeforeUnloadEventCallback", "fillBatteryEventData", "battery", "registerBatteryEventCallback", "setCanvasElementSizeCallingThread", "setCanvasElementSizeMainThread", "setCanvasElementSize", "getCanvasSizeCallingThread", "getCanvasSizeMainThread", "getCanvasElementSize", "jsStackTrace", "getCallstack", "convertPCtoSourceLocation", "wasiRightsToMuslOFlags", "wasiOFlagsToMuslOFlags", "safeSetTimeout", "setImmediateWrapped", "safeRequestAnimationFrame", "clearImmediateWrapped", "registerPostMainLoop", "registerPreMainLoop", "getPromise", "makePromise", "idsToPromises", "makePromiseCallback", "ExceptionInfo", "findMatchingCatch", "Browser_asyncPrepareDataCounter", "arraySum", "addDays", "getSocketFromFD", "getSocketAddress", "FS_mkdirTree", "_setNetworkCallback", "heapObjectForWebGLType", "toTypedArrayIndex", "webgl_enable_ANGLE_instanced_arrays", "webgl_enable_OES_vertex_array_object", "webgl_enable_WEBGL_draw_buffers", "webgl_enable_WEBGL_multi_draw", "webgl_enable_EXT_polygon_offset_clamp", "webgl_enable_EXT_clip_control", "webgl_enable_WEBGL_polygon_mode", "emscriptenWebGLGet", "computeUnpackAlignedImageSize", "colorChannelsInGlTextureFormat", "emscriptenWebGLGetTexPixelData", "emscriptenWebGLGetUniform", "webglGetUniformLocation", "webglPrepareUniformLocationsBeforeFirstUse", "webglGetLeftBracePos", "emscriptenWebGLGetVertexAttrib", "__glGetActiveAttribOrUniform", "writeGLArray", "emscripten_webgl_destroy_context_before_on_calling_thread", "registerWebGlEventCallback", "ALLOC_NORMAL", "ALLOC_STACK", "allocate", "writeStringToMemory", "writeAsciiToMemory", "demangle", "stackTrace", "throwInternalError", "whenDependentTypesAreResolved", "getFunctionName", "getFunctionArgsName", "heap32VectorToArray", "usesDestructorStack", "createJsInvokerSignature", "checkArgCount", "getRequiredArgCount", "createJsInvoker", "UnboundTypeError", "PureVirtualError", "throwUnboundTypeError", "replacePublicSymbol", "getBasestPointer", "registerInheritedInstance", "unregisterInheritedInstance", "getInheritedInstance", "getInheritedInstanceCount", "getLiveInheritedInstances", "runDestructors", "craftInvokerFunction", "embind__requireFunction", "genericPointerToWireType", "constNoSmartPtrRawPointerToWireType", "nonConstNoSmartPtrRawPointerToWireType", "init_RegisteredPointer", "RegisteredPointer", "RegisteredPointer_fromWireType", "runDestructor", "releaseClassHandle", "detachFinalizer", "attachFinalizer", "makeClassHandle", "init_ClassHandle", "ClassHandle", "throwInstanceAlreadyDeleted", "flushPendingDeletes", "setDelayFunction", "RegisteredClass", "shallowCopyInternalPointer", "downcastPointer", "upcastPointer", "validateThis", "char_0", "char_9", "makeLegalFunctionName", "getStringOrSymbol", "emval_get_global", "emval_returnValue", "emval_lookupTypes", "emval_addMethodCaller" ];
missingLibrarySymbols.forEach(missingLibrarySymbol);
var unexportedSymbols = [ "run", "out", "err", "callMain", "abort", "wasmMemory", "wasmExports", "HEAP8", "HEAP64", "HEAPU64", "GROWABLE_HEAP_I8", "GROWABLE_HEAP_U8", "GROWABLE_HEAP_I16", "GROWABLE_HEAP_U16", "GROWABLE_HEAP_I32", "GROWABLE_HEAP_U32", "GROWABLE_HEAP_F32", "GROWABLE_HEAP_F64", "writeStackCookie", "checkStackCookie", "INT53_MAX", "INT53_MIN", "bigintToI53Checked", "stackSave", "stackRestore", "stackAlloc", "exitJS", "getHeapMax", "growMemory", "ENV", "ERRNO_CODES", "strError", "DNS", "Protocols", "Sockets", "timers", "readEmAsmArgsArray", "getExecutableName", "keepRuntimeAlive", "runtimeKeepalivePush", "runtimeKeepalivePop", "callUserCallback", "maybeExit", "asyncLoad", "alignMemory", "mmapAlloc", "wasmTable", "noExitRuntime", "addOnPreRun", "addOnPostRun", "POINTER_SIZE", "getCFunc", "sigToWasmTypes", "freeTableIndexes", "functionsInTableMap", "PATH", "PATH_FS", "UTF8Decoder", "UTF8ArrayToString", "UTF16Decoder", "UTF16ToString", "stringToUTF16", "lengthBytesUTF16", "UTF32ToString", "stringToUTF32", "lengthBytesUTF32", "stringToUTF8OnStack", "JSEvents", "specialHTMLTargets", "findCanvasEventTarget", "currentFullscreenStrategy", "restoreOldWindowedStyle", "UNWIND_CACHE", "ExitStatus", "getEnvStrings", "checkWasiClock", "doReadv", "doWritev", "initRandomFill", "randomFill", "emSetImmediate", "emClearImmediate_deps", "emClearImmediate", "promiseMap", "uncaughtExceptionCount", "exceptionLast", "exceptionCaught", "Browser", "getPreloadedImageData__data", "wget", "MONTH_DAYS_REGULAR", "MONTH_DAYS_LEAP", "MONTH_DAYS_REGULAR_CUMULATIVE", "MONTH_DAYS_LEAP_CUMULATIVE", "isLeapYear", "ydayFromDate", "SYSCALLS", "preloadPlugins", "FS_modeStringToFlags", "FS_getMode", "FS_stdin_getChar_buffer", "FS_stdin_getChar", "FS_readFile", "FS_root", "FS_mounts", "FS_devices", "FS_streams", "FS_nextInode", "FS_nameTable", "FS_currentPath", "FS_initialized", "FS_ignorePermissions", "FS_filesystems", "FS_syncFSRequests", "FS_readFiles", "FS_lookupPath", "FS_getPath", "FS_hashName", "FS_hashAddNode", "FS_hashRemoveNode", "FS_lookupNode", "FS_createNode", "FS_destroyNode", "FS_isRoot", "FS_isMountpoint", "FS_isFile", "FS_isDir", "FS_isLink", "FS_isChrdev", "FS_isBlkdev", "FS_isFIFO", "FS_isSocket", "FS_flagsToPermissionString", "FS_nodePermissions", "FS_mayLookup", "FS_mayCreate", "FS_mayDelete", "FS_mayOpen", "FS_checkOpExists", "FS_nextfd", "FS_getStreamChecked", "FS_getStream", "FS_createStream", "FS_closeStream", "FS_dupStream", "FS_doSetAttr", "FS_chrdev_stream_ops", "FS_major", "FS_minor", "FS_makedev", "FS_registerDevice", "FS_getDevice", "FS_getMounts", "FS_syncfs", "FS_mount", "FS_unmount", "FS_lookup", "FS_mknod", "FS_statfs", "FS_statfsStream", "FS_statfsNode", "FS_create", "FS_mkdir", "FS_mkdev", "FS_symlink", "FS_rename", "FS_rmdir", "FS_readdir", "FS_readlink", "FS_stat", "FS_fstat", "FS_lstat", "FS_doChmod", "FS_chmod", "FS_lchmod", "FS_fchmod", "FS_doChown", "FS_chown", "FS_lchown", "FS_fchown", "FS_doTruncate", "FS_truncate", "FS_ftruncate", "FS_utime", "FS_open", "FS_close", "FS_isClosed", "FS_llseek", "FS_read", "FS_write", "FS_mmap", "FS_msync", "FS_ioctl", "FS_writeFile", "FS_cwd", "FS_chdir", "FS_createDefaultDirectories", "FS_createDefaultDevices", "FS_createSpecialDirectories", "FS_createStandardStreams", "FS_staticInit", "FS_init", "FS_quit", "FS_findObject", "FS_analyzePath", "FS_createFile", "FS_forceLoadFile", "FS_absolutePath", "FS_createFolder", "FS_createLink", "FS_joinPath", "FS_mmapAlloc", "FS_standardizePath", "MEMFS", "TTY", "PIPEFS", "SOCKFS", "tempFixedLengthArray", "miniTempWebGLFloatBuffers", "miniTempWebGLIntBuffers", "GL", "AL", "GLUT", "EGL", "GLEW", "IDBStore", "runAndAbortIfError", "Asyncify", "Fibers", "SDL", "SDL_gfx", "allocateUTF8", "allocateUTF8OnStack", "print", "printErr", "jstoi_s", "PThread", "terminateWorker", "cleanupThread", "registerTLSInit", "spawnThread", "exitOnMainThread", "proxyToMainThread", "proxiedJSCallArgs", "invokeEntryPoint", "checkMailbox", "InternalError", "BindingError", "throwBindingError", "registeredTypes", "awaitingDependencies", "typeDependencies", "tupleRegistrations", "structRegistrations", "sharedRegisterType", "embind_charCodes", "embind_init_charCodes", "readLatin1String", "getTypeName", "requireRegisteredType", "GenericWireTypeSize", "EmValType", "EmValOptionalType", "ensureOverloadTable", "exposePublicSymbol", "createNamedFunction", "embindRepr", "registeredInstances", "registeredPointers", "registerType", "integerReadValueFromPointer", "enumReadValueFromPointer", "floatReadValueFromPointer", "readPointer", "finalizationRegistry", "detachFinalizer_deps", "deletionQueue", "delayFunction", "emval_freelist", "emval_handles", "emval_symbols", "init_emval", "count_emval_handles", "Emval", "emval_methodCallers", "reflectConstruct" ];
unexportedSymbols.forEach(unexportedRuntimeSymbol);
// End runtime exports
// Begin JS library exports
// End JS library exports
// end include: postlibrary.js
// proxiedFunctionTable specifies the list of functions that can be called
// either synchronously or asynchronously from other threads in postMessage()d
// or internally queued events. This way a pthread in a Worker can synchronously
// access e.g. the DOM on the main thread.
var proxiedFunctionTable = [ _proc_exit, exitOnMainThread, ___syscall_dup, ___syscall_fcntl64, ___syscall_fstat64, ___syscall_ioctl, ___syscall_lstat64, ___syscall_mkdirat, ___syscall_newfstatat, ___syscall_openat, ___syscall_stat64, _environ_get, _environ_sizes_get, _fd_close, _fd_read, _fd_seek, _fd_write ];
function checkIncomingModuleAPI() {
ignoredModuleProp("fetchSettings");
}
function __asyncjs__fetchBytes(url, pbuffer, pnum, perror) {
return Asyncify.handleAsync(async () => {
const response = await fetch(UTF8ToString(url), {
headers: {
"Accept": "application/xslt+xml, application/xml, text/xml, application/xhtml+xml;q=0.8, application/*; q=0.6, */*;q=0.5"
}
});
if (!response.ok) {
setValue(pbuffer, 0, "i32");
setValue(pnum, 0, "i32");
setValue(perror, response.status, "i32");
} else {
const responseBytes = await response.bytes();
const bufferToFill = _malloc(responseBytes.length * responseBytes.BYTES_PER_ELEMENT);
GROWABLE_HEAP_U8().set(responseBytes, bufferToFill);
setValue(pnum, responseBytes.length, "i32");
setValue(perror, 0, "i32");
setValue(pbuffer, bufferToFill, "*");
}
});
}
__asyncjs__fetchBytes.sig = "viiii";
var wasmImports;
function assignWasmImports() {
wasmImports = {
/** @export */ __assert_fail: ___assert_fail,
/** @export */ __asyncjs__fetchBytes,
/** @export */ __syscall_dup: ___syscall_dup,
/** @export */ __syscall_fcntl64: ___syscall_fcntl64,
/** @export */ __syscall_fstat64: ___syscall_fstat64,
/** @export */ __syscall_ioctl: ___syscall_ioctl,
/** @export */ __syscall_lstat64: ___syscall_lstat64,
/** @export */ __syscall_mkdirat: ___syscall_mkdirat,
/** @export */ __syscall_newfstatat: ___syscall_newfstatat,
/** @export */ __syscall_openat: ___syscall_openat,
/** @export */ __syscall_stat64: ___syscall_stat64,
/** @export */ _abort_js: __abort_js,
/** @export */ _embind_register_bigint: __embind_register_bigint,
/** @export */ _embind_register_bool: __embind_register_bool,
/** @export */ _embind_register_emval: __embind_register_emval,
/** @export */ _embind_register_enum: __embind_register_enum,
/** @export */ _embind_register_enum_value: __embind_register_enum_value,
/** @export */ _embind_register_float: __embind_register_float,
/** @export */ _embind_register_integer: __embind_register_integer,
/** @export */ _embind_register_memory_view: __embind_register_memory_view,
/** @export */ _embind_register_std_string: __embind_register_std_string,
/** @export */ _embind_register_std_wstring: __embind_register_std_wstring,
/** @export */ _embind_register_void: __embind_register_void,
/** @export */ _emscripten_init_main_thread_js: __emscripten_init_main_thread_js,
/** @export */ _emscripten_notify_mailbox_postmessage: __emscripten_notify_mailbox_postmessage,
/** @export */ _emscripten_receive_on_main_thread_js: __emscripten_receive_on_main_thread_js,
/** @export */ _emscripten_thread_cleanup: __emscripten_thread_cleanup,
/** @export */ _emscripten_thread_mailbox_await: __emscripten_thread_mailbox_await,
/** @export */ _emscripten_thread_set_strongref: __emscripten_thread_set_strongref,
/** @export */ _gmtime_js: __gmtime_js,
/** @export */ _localtime_js: __localtime_js,
/** @export */ _tzset_js: __tzset_js,
/** @export */ clock_time_get: _clock_time_get,
/** @export */ emscripten_check_blocking_allowed: _emscripten_check_blocking_allowed,
/** @export */ emscripten_date_now: _emscripten_date_now,
/** @export */ emscripten_exit_with_live_runtime: _emscripten_exit_with_live_runtime,
/** @export */ emscripten_get_now: _emscripten_get_now,
/** @export */ emscripten_resize_heap: _emscripten_resize_heap,
/** @export */ environ_get: _environ_get,
/** @export */ environ_sizes_get: _environ_sizes_get,
/** @export */ exit: _exit,
/** @export */ fd_close: _fd_close,
/** @export */ fd_read: _fd_read,
/** @export */ fd_seek: _fd_seek,
/** @export */ fd_write: _fd_write,
/** @export */ memory: wasmMemory
};
}
var wasmExports = await createWasm();
var ___wasm_call_ctors = createExportWrapper("__wasm_call_ctors", 0);
var _exsltRegisterAll = Module["_exsltRegisterAll"] = createExportWrapper("exsltRegisterAll", 0);
var _exsltCommonRegister = Module["_exsltCommonRegister"] = createExportWrapper("exsltCommonRegister", 0);
var _exsltMathRegister = Module["_exsltMathRegister"] = createExportWrapper("exsltMathRegister", 0);
var _exsltSetsRegister = Module["_exsltSetsRegister"] = createExportWrapper("exsltSetsRegister", 0);
var _exsltFuncRegister = Module["_exsltFuncRegister"] = createExportWrapper("exsltFuncRegister", 0);
var _exsltStrRegister = Module["_exsltStrRegister"] = createExportWrapper("exsltStrRegister", 0);
var _exsltDateRegister = Module["_exsltDateRegister"] = createExportWrapper("exsltDateRegister", 0);
var _exsltSaxonRegister = Module["_exsltSaxonRegister"] = createExportWrapper("exsltSaxonRegister", 0);
var _exsltDynRegister = Module["_exsltDynRegister"] = createExportWrapper("exsltDynRegister", 0);
var _xsltInit = Module["_xsltInit"] = createExportWrapper("xsltInit", 0);
var _xsltUninit = Module["_xsltUninit"] = createExportWrapper("xsltUninit", 0);
var _xsltFreeStylesheet = Module["_xsltFreeStylesheet"] = createExportWrapper("xsltFreeStylesheet", 1);
var _xsltParseStylesheetProcess = Module["_xsltParseStylesheetProcess"] = createExportWrapper("xsltParseStylesheetProcess", 2);
var _xsltParseStylesheetImportedDoc = Module["_xsltParseStylesheetImportedDoc"] = createExportWrapper("xsltParseStylesheetImportedDoc", 2);
var _xsltParseStylesheetDoc = Module["_xsltParseStylesheetDoc"] = createExportWrapper("xsltParseStylesheetDoc", 1);
var _xsltLoadStylesheetPI = Module["_xsltLoadStylesheetPI"] = createExportWrapper("xsltLoadStylesheetPI", 1);
var _xsltSaveResultTo = Module["_xsltSaveResultTo"] = createExportWrapper("xsltSaveResultTo", 3);
var _xsltSaveResultToFile = Module["_xsltSaveResultToFile"] = createExportWrapper("xsltSaveResultToFile", 3);
var _xsltXPathCompileFlags = Module["_xsltXPathCompileFlags"] = createExportWrapper("xsltXPathCompileFlags", 3);
var _xsltXPathCompile = Module["_xsltXPathCompile"] = createExportWrapper("xsltXPathCompile", 2);
var _xsltInitGlobals = Module["_xsltInitGlobals"] = createExportWrapper("xsltInitGlobals", 0);
var _xsltCleanupGlobals = Module["_xsltCleanupGlobals"] = createExportWrapper("xsltCleanupGlobals", 0);
var _xsltRegisterAllExtras = Module["_xsltRegisterAllExtras"] = createExportWrapper("xsltRegisterAllExtras", 0);
var _xsltNextImport = Module["_xsltNextImport"] = createExportWrapper("xsltNextImport", 1);
var _xsltResolveStylesheetAttributeSet = Module["_xsltResolveStylesheetAttributeSet"] = createExportWrapper("xsltResolveStylesheetAttributeSet", 1);
var _xsltFreeAttributeSetsHashes = Module["_xsltFreeAttributeSetsHashes"] = createExportWrapper("xsltFreeAttributeSetsHashes", 1);
var _xsltSetXIncludeDefault = Module["_xsltSetXIncludeDefault"] = createExportWrapper("xsltSetXIncludeDefault", 1);
var _xsltGetXIncludeDefault = Module["_xsltGetXIncludeDefault"] = createExportWrapper("xsltGetXIncludeDefault", 0);
var _xsltApplyStylesheet = Module["_xsltApplyStylesheet"] = createExportWrapper("xsltApplyStylesheet", 3);
var _xmlDetectCharEncoding = Module["_xmlDetectCharEncoding"] = createExportWrapper("xmlDetectCharEncoding", 2);
var _xmlParseCharEncoding = Module["_xmlParseCharEncoding"] = createExportWrapper("xmlParseCharEncoding", 1);
var _xmlLookupCharEncodingHandler = Module["_xmlLookupCharEncodingHandler"] = createExportWrapper("xmlLookupCharEncodingHandler", 2);
var _xmlResetLastError = Module["_xmlResetLastError"] = createExportWrapper("xmlResetLastError", 0);
var _xmlGetLastError = Module["_xmlGetLastError"] = createExportWrapper("xmlGetLastError", 0);
var _xmlHasFeature = Module["_xmlHasFeature"] = createExportWrapper("xmlHasFeature", 1);
var _xmlParseDTD = Module["_xmlParseDTD"] = createExportWrapper("xmlParseDTD", 2);
var _xmlParseEntity = Module["_xmlParseEntity"] = createExportWrapper("xmlParseEntity", 1);
var _xmlParseFile = Module["_xmlParseFile"] = createExportWrapper("xmlParseFile", 1);
var _xmlParseMemory = Module["_xmlParseMemory"] = createExportWrapper("xmlParseMemory", 2);
var _xmlReadDoc = Module["_xmlReadDoc"] = createExportWrapper("xmlReadDoc", 4);
var _xmlReadFile = Module["_xmlReadFile"] = createExportWrapper("xmlReadFile", 3);
var _xmlReadMemory = Module["_xmlReadMemory"] = createExportWrapper("xmlReadMemory", 5);
var _xmlReadFd = Module["_xmlReadFd"] = createExportWrapper("xmlReadFd", 4);
var _xmlReadIO = Module["_xmlReadIO"] = createExportWrapper("xmlReadIO", 6);
var _xmlInputSetEncodingHandler = Module["_xmlInputSetEncodingHandler"] = createExportWrapper("xmlInputSetEncodingHandler", 2);
var _xmlNewInputFromMemory = Module["_xmlNewInputFromMemory"] = createExportWrapper("xmlNewInputFromMemory", 4);
var _xmlNewInputFromString = Module["_xmlNewInputFromString"] = createExportWrapper("xmlNewInputFromString", 3);
var _xmlNewInputFromFd = Module["_xmlNewInputFromFd"] = createExportWrapper("xmlNewInputFromFd", 3);
var _xmlNewInputFromIO = Module["_xmlNewInputFromIO"] = createExportWrapper("xmlNewInputFromIO", 5);
var _xmlNewInputFromUrl = Module["_xmlNewInputFromUrl"] = createExportWrapper("xmlNewInputFromUrl", 3);
var _xmlSetExternalEntityLoader = Module["_xmlSetExternalEntityLoader"] = createExportWrapper("xmlSetExternalEntityLoader", 1);
var _xmlGetExternalEntityLoader = Module["_xmlGetExternalEntityLoader"] = createExportWrapper("xmlGetExternalEntityLoader", 0);
var _xmlLoadExternalEntity = Module["_xmlLoadExternalEntity"] = createExportWrapper("xmlLoadExternalEntity", 3);
var _xmlInitParser = Module["_xmlInitParser"] = createExportWrapper("xmlInitParser", 0);
var _xmlCleanupParser = Module["_xmlCleanupParser"] = createExportWrapper("xmlCleanupParser", 0);
var _xmlFreeDtd = Module["_xmlFreeDtd"] = createExportWrapper("xmlFreeDtd", 1);
var _xmlGetIntSubset = Module["_xmlGetIntSubset"] = createExportWrapper("xmlGetIntSubset", 1);
var _xmlFreeDoc = Module["_xmlFreeDoc"] = createExportWrapper("xmlFreeDoc", 1);
var _xmlDocGetRootElement = Module["_xmlDocGetRootElement"] = createExportWrapper("xmlDocGetRootElement", 1);
var _xmlDocSetRootElement = Module["_xmlDocSetRootElement"] = createExportWrapper("xmlDocSetRootElement", 2);
var _xmlGetDocCompressMode = Module["_xmlGetDocCompressMode"] = createExportWrapper("xmlGetDocCompressMode", 1);
var _xmlCheckFilename = Module["_xmlCheckFilename"] = createExportWrapper("xmlCheckFilename", 1);
var _xmlAllocOutputBuffer = Module["_xmlAllocOutputBuffer"] = createExportWrapper("xmlAllocOutputBuffer", 1);
var _xmlOutputBufferClose = Module["_xmlOutputBufferClose"] = createExportWrapper("xmlOutputBufferClose", 1);
var _xmlOutputBufferCreateFilename = Module["_xmlOutputBufferCreateFilename"] = createExportWrapper("xmlOutputBufferCreateFilename", 3);
var _xmlOutputBufferCreateFile = Module["_xmlOutputBufferCreateFile"] = createExportWrapper("xmlOutputBufferCreateFile", 2);
var _xmlOutputBufferGetContent = Module["_xmlOutputBufferGetContent"] = createExportWrapper("xmlOutputBufferGetContent", 1);
var _xmlOutputBufferGetSize = Module["_xmlOutputBufferGetSize"] = createExportWrapper("xmlOutputBufferGetSize", 1);
var _xmlOutputBufferCreateFd = Module["_xmlOutputBufferCreateFd"] = createExportWrapper("xmlOutputBufferCreateFd", 2);
var _xmlOutputBufferWrite = Module["_xmlOutputBufferWrite"] = createExportWrapper("xmlOutputBufferWrite", 3);
var _xmlOutputBufferWriteString = Module["_xmlOutputBufferWriteString"] = createExportWrapper("xmlOutputBufferWriteString", 2);
var _xmlCharStrdup = Module["_xmlCharStrdup"] = createExportWrapper("xmlCharStrdup", 1);
var _xmlCheckUTF8 = Module["_xmlCheckUTF8"] = createExportWrapper("xmlCheckUTF8", 1);
var _htmlDocContentDumpFormatOutput = Module["_htmlDocContentDumpFormatOutput"] = createExportWrapper("htmlDocContentDumpFormatOutput", 4);
var _xmlNodeDump = Module["_xmlNodeDump"] = createExportWrapper("xmlNodeDump", 5);
var _xmlNodeDumpOutput = Module["_xmlNodeDumpOutput"] = createExportWrapper("xmlNodeDumpOutput", 6);
var _xmlDocDumpFormatMemoryEnc = Module["_xmlDocDumpFormatMemoryEnc"] = createExportWrapper("xmlDocDumpFormatMemoryEnc", 5);
var _xmlDocDumpMemory = Module["_xmlDocDumpMemory"] = createExportWrapper("xmlDocDumpMemory", 3);
var _xmlDocDumpFormatMemory = Module["_xmlDocDumpFormatMemory"] = createExportWrapper("xmlDocDumpFormatMemory", 4);
var _xmlDocDumpMemoryEnc = Module["_xmlDocDumpMemoryEnc"] = createExportWrapper("xmlDocDumpMemoryEnc", 4);
var _xmlDocFormatDump = Module["_xmlDocFormatDump"] = createExportWrapper("xmlDocFormatDump", 3);
var _xmlDocDump = Module["_xmlDocDump"] = createExportWrapper("xmlDocDump", 2);
var _xmlSaveFileTo = Module["_xmlSaveFileTo"] = createExportWrapper("xmlSaveFileTo", 3);
var _xmlSaveFormatFileTo = Module["_xmlSaveFormatFileTo"] = createExportWrapper("xmlSaveFormatFileTo", 4);
var _xmlSaveFormatFileEnc = Module["_xmlSaveFormatFileEnc"] = createExportWrapper("xmlSaveFormatFileEnc", 4);
var _xmlSaveFormatFile = Module["_xmlSaveFormatFile"] = createExportWrapper("xmlSaveFormatFile", 3);
var _xmlXIncludeNewContext = Module["_xmlXIncludeNewContext"] = createExportWrapper("xmlXIncludeNewContext", 1);
var _xmlXIncludeFreeContext = Module["_xmlXIncludeFreeContext"] = createExportWrapper("xmlXIncludeFreeContext", 1);
var _xmlXIncludeGetLastError = Module["_xmlXIncludeGetLastError"] = createExportWrapper("xmlXIncludeGetLastError", 1);
var _xmlXIncludeProcessFlagsData = Module["_xmlXIncludeProcessFlagsData"] = createExportWrapper("xmlXIncludeProcessFlagsData", 3);
var _xmlXIncludeProcessFlags = Module["_xmlXIncludeProcessFlags"] = createExportWrapper("xmlXIncludeProcessFlags", 2);
var _xmlXIncludeProcess = Module["_xmlXIncludeProcess"] = createExportWrapper("xmlXIncludeProcess", 1);
var _xmlXPathOrderDocElems = Module["_xmlXPathOrderDocElems"] = createExportWrapper("xmlXPathOrderDocElems", 1);
var ___getTypeName = createExportWrapper("__getTypeName", 1);
var __embind_initialize_bindings = createExportWrapper("_embind_initialize_bindings", 0);
var _pthread_self = () => (_pthread_self = wasmExports["pthread_self"])();
var _libxsltWasmExternalEntityLoader = Module["_libxsltWasmExternalEntityLoader"] = createExportWrapper("libxsltWasmExternalEntityLoader", 3);
var _malloc = Module["_malloc"] = createExportWrapper("malloc", 1);
var _free = Module["_free"] = createExportWrapper("free", 1);
var _fflush = createExportWrapper("fflush", 1);
var _realloc = Module["_realloc"] = createExportWrapper("realloc", 2);
var ___original_main = Module["___original_main"] = createExportWrapper("__original_main", 0);
var _main = Module["_main"] = createExportWrapper("main", 2);
var __emscripten_tls_init = createExportWrapper("_emscripten_tls_init", 0);
var __emscripten_thread_init = createExportWrapper("_emscripten_thread_init", 6);
var __emscripten_thread_crashed = createExportWrapper("_emscripten_thread_crashed", 0);
var _emscripten_stack_get_base = () => (_emscripten_stack_get_base = wasmExports["emscripten_stack_get_base"])();
var _emscripten_stack_get_end = () => (_emscripten_stack_get_end = wasmExports["emscripten_stack_get_end"])();
var __emscripten_run_on_main_thread_js = createExportWrapper("_emscripten_run_on_main_thread_js", 5);
var __emscripten_thread_free_data = createExportWrapper("_emscripten_thread_free_data", 1);
var __emscripten_thread_exit = createExportWrapper("_emscripten_thread_exit", 1);
var _strerror = createExportWrapper("strerror", 1);
var __emscripten_check_mailbox = createExportWrapper("_emscripten_check_mailbox", 0);
var _calloc = Module["_calloc"] = createExportWrapper("calloc", 2);
var _emscripten_stack_init = () => (_emscripten_stack_init = wasmExports["emscripten_stack_init"])();
var _emscripten_stack_set_limits = (a0, a1) => (_emscripten_stack_set_limits = wasmExports["emscripten_stack_set_limits"])(a0, a1);
var _emscripten_stack_get_free = () => (_emscripten_stack_get_free = wasmExports["emscripten_stack_get_free"])();
var __emscripten_stack_restore = a0 => (__emscripten_stack_restore = wasmExports["_emscripten_stack_restore"])(a0);
var __emscripten_stack_alloc = a0 => (__emscripten_stack_alloc = wasmExports["_emscripten_stack_alloc"])(a0);
var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports["emscripten_stack_get_current"])();
// include: postamble.js
// === Auto-generated postamble setup entry stuff ===
var calledRun;
async function callMain() {
assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])');
assert(typeof onPreRuns === "undefined" || onPreRuns.length == 0, "cannot call main when preRun functions remain to be called");
var entryFunction = _main;
var argc = 0;
var argv = 0;
try {
var ret = entryFunction(argc, argv);
// The current spec of JSPI returns a promise only if the function suspends
// and a plain value otherwise. This will likely change:
// https://github.com/WebAssembly/js-promise-integration/issues/11
ret = await ret;
// if we're not running an evented main loop, it's time to exit
exitJS(ret, /* implicit = */ true);
return ret;
} catch (e) {
return handleException(e);
}
}
function stackCheckInit() {
// This is normally called automatically during __wasm_call_ctors but need to
// get these values before even running any of the ctors so we call it redundantly
// here.
// See $establishStackSpace for the equivalent code that runs on a thread
assert(!ENVIRONMENT_IS_PTHREAD);
_emscripten_stack_init();
// TODO(sbc): Move writeStackCookie to native to to avoid this.
writeStackCookie();
}
function run() {
if (runDependencies > 0) {
dependenciesFulfilled = run;
return;
}
if ((ENVIRONMENT_IS_PTHREAD)) {
readyPromiseResolve(Module);
initRuntime();
return;
}
stackCheckInit();
preRun();
// a preRun added a dependency, run will be called later
if (runDependencies > 0) {
dependenciesFulfilled = run;
return;
}
async function doRun() {
// run may have just been called through dependencies being fulfilled just in this very frame,
// or while the async setStatus time below was happening
assert(!calledRun);
calledRun = true;
Module["calledRun"] = true;
if (ABORT) return;
initRuntime();
preMain();
readyPromiseResolve(Module);
Module["onRuntimeInitialized"]?.();
consumedModuleProp("onRuntimeInitialized");
var noInitialRun = Module["noInitialRun"] || false;
if (!noInitialRun) await callMain();
postRun();
}
if (Module["setStatus"]) {
Module["setStatus"]("Running...");
setTimeout(() => {
setTimeout(() => Module["setStatus"](""), 1);
doRun();
}, 1);
} else {
doRun();
}
checkStackCookie();
}
function checkUnflushedContent() {
// Compiler settings do not allow exiting the runtime, so flushing
// the streams is not possible. but in ASSERTIONS mode we check
// if there was something to flush, and if so tell the user they
// should request that the runtime be exitable.
// Normally we would not even include flush() at all, but in ASSERTIONS
// builds we do so just for this check, and here we see if there is any
// content to flush, that is, we check if there would have been
// something a non-ASSERTIONS build would have not seen.
// How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0
// mode (which has its own special function for this; otherwise, all
// the code is inside libc)
var oldOut = out;
var oldErr = err;
var has = false;
out = err = x => {
has = true;
};
try {
// it doesn't matter if it fails
_fflush(0);
// also flush in the JS FS layer
[ "stdout", "stderr" ].forEach(name => {
var info = FS.analyzePath("/dev/" + name);
if (!info) return;
var stream = info.object;
var rdev = stream.rdev;
var tty = TTY.ttys[rdev];
if (tty?.output?.length) {
has = true;
}
});
} catch (e) {}
out = oldOut;
err = oldErr;
if (has) {
warnOnce("stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the Emscripten FAQ), or make sure to emit a newline when you printf etc.");
}
}
function preInit() {
if (Module["preInit"]) {
if (typeof Module["preInit"] == "function") Module["preInit"] = [ Module["preInit"] ];
while (Module["preInit"].length > 0) {
Module["preInit"].shift()();
}
}
consumedModuleProp("preInit");
}
preInit();
run();
// end include: postamble.js
// include: postamble_modularize.js
// In MODULARIZE mode we wrap the generated code in a factory function
// and return either the Module itself, or a promise of the module.
// We assign to the `moduleRtn` global here and configure closure to see
// this as and extern so it won't get minified.
moduleRtn = readyPromise;
// Assertion for attempting to access module properties on the incoming
// moduleArg. In the past we used this object as the prototype of the module
// and assigned properties to it, but now we return a distinct object. This
// keeps the instance private until it is ready (i.e the promise has been
// resolved).
for (const prop of Object.keys(Module)) {
if (!(prop in moduleArg)) {
Object.defineProperty(moduleArg, prop, {
configurable: true,
get() {
abort(`Access to module property ('${prop}') is no longer possible via the module constructor argument; Instead, use the result of the module constructor.`);
}
});
}
}
return moduleRtn;
}
);
})();
export default LibxsltModule;
var isPthread = globalThis.self?.name?.startsWith('em-pthread');
var isNode = typeof globalThis.process?.versions?.node == 'string';
if (isNode) isPthread = (await import('worker_threads')).workerData === 'em-pthread';
// When running as a pthread, construct a new instance on startup
isPthread && LibxsltModule();