rc-js-util/bin/cjs/web-assembly/shared-array/shared-array.js

A collection of TS and C++ utilities to help writing performant and correct applications, achieved through strict typing and (removable) invariant checking.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SharedArray = exports.sharedArraySpecialization = void 0;
const null_pointer_js_1 = require("../emscripten/null-pointer.js");
const rtti_interop_js_1 = require("../../runtime/rtti-interop.js");
const shared_buffer_view_js_1 = require("../shared-memory/shared-buffer-view.js");
const nested_error_js_1 = require("../../error-handling/nested-error.js");
const wasm_error_cause_js_1 = require("../wasm-error-cause.js");
const shared_object_cleanup_js_1 = require("../shared-memory/shared-object-cleanup.js");
/**
 * @public
 */
exports.sharedArraySpecialization = new rtti_interop_js_1.IdSpecialization(rtti_interop_js_1.bufferCategory, "JSU_SHARED_ARRAY");
/**
 * @public
 * Typed array shared between wasm and javascript.
 */
class SharedArray extends shared_buffer_view_js_1.SharedBufferView {
    static createOne(wrapper, containerType, bindToReference, length, clearMemory = false, allocationFailThrows = true) {
        const numberId = (0, rtti_interop_js_1.getNumberIdentifier)(containerType);
        const pointerToContainer = createSharedObject(wrapper, numberId, length, clearMemory, allocationFailThrows);
        return pointerToContainer === null_pointer_js_1.nullPtr ? null : new SharedArray(containerType, wrapper, bindToReference, length, pointerToContainer, numberId);
    }
    getWrapper() {
        return this.wrapper;
    }
    // @internal
    constructor(ctor, wrapper, owner, length, pointerToContainer, numberId) {
        super(wrapper, owner, ctor, wrapper.instance._sharedArray_getDataAddress(numberId, pointerToContainer), length * ctor.BYTES_PER_ELEMENT);
        this.length = length;
        this.pointer = pointerToContainer;
        this.cleanup = new shared_object_cleanup_js_1.SharedObjectCleanup(this, shared_object_cleanup_js_1.ESharedObjectOwnerKind.SharedMemoryOwner);
        shared_object_cleanup_js_1.SharedObjectCleanup.registerCleanup(this, this.cleanup, new shared_object_cleanup_js_1.SharedObjectCleanup.Options("SharedArray", null, shared_object_cleanup_js_1.ESharedObjectOwnerKind.SharedMemoryOwner));
        // annotations
        wrapper.interopIds.setSpecializations(this, [exports.sharedArraySpecialization, (0, rtti_interop_js_1.getNumberSpecialization)(ctor)]);
    }
}
exports.SharedArray = SharedArray;
function createSharedObject(wrapper, numberId, length, clearMemory, allocationFailThrows) {
    const pointer = wrapper.instance._sharedArray_createOne(numberId, length, clearMemory);
    if (pointer === null_pointer_js_1.nullPtr && allocationFailThrows) {
        throw new nested_error_js_1.NestedError("Failed to allocate memory for shared array.", wasm_error_cause_js_1.WasmErrorCause.allocationFailure);
    }
    return pointer;
}
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