tgrid
Version:
Grid Computing Framework for TypeScript
250 lines • 11.9 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
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op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.SharedWorkerServer = void 0;
var tstl_1 = require("tstl");
var once_1 = require("../internal/once");
var SharedWorkerAcceptor_1 = require("./SharedWorkerAcceptor");
/**
* SharedWorker server.
*
* - available only in the Web Browser.
*
* The `SharedWorkerServer` is a class representing a server in `SharedWorker`
* environment. Clients connecting to the `SharedWorkerServer` would communicate
* with this server through {@link SharedWorkerAcceptor} instances using RPC
* (Remote Procedure Call) concept.
*
* To open the server, call the {@link open} method with your callback function
* which would be called whenever a {@link SharedWorkerAcceptor} has been newly
* created by a new client's connection.
*
* Also, when declaring this `SharedWorkerServer` type, you have to define three
* generic arguments; `Header`, `Provider` and `Remote`. Those generic arguments
* would be propagated to the {@link SharedWorkerAcceptor}, so that
* {@link SharedWorkerAcceptor} would have the same generic arguments, too.
*
* For reference, the first `Header` type represents an initial data from the
* remote client after the connection. I recommend utilize it as an activation tool
* for security enhancement. The second generic argument `Provider` represents a
* provider from server to client, and the other `Remote` means a provider from the
* remote client to server.
*
* @template Header Type of header containing initialization data like activation.
* @template Provider Type of features provided for the remote client.
* @template Remote Type of features provided by remote client.
* @author Jeongho Nam - https://github.com/samchon
*/
var SharedWorkerServer = /** @class */ (function () {
/* ----------------------------------------------------------------
CONSTRUCTOR
---------------------------------------------------------------- */
/**
* Default Constructor.
*/
function SharedWorkerServer() {
this.acceptors_ = new tstl_1.HashSet();
this.state_ = -1 /* SharedWorkerServer.State.NONE */;
}
/**
* Open shared worker server.
*
* Open a server through the shared worker protocol, with *handler* function
* determining whether to accept the client's connection or not. After the server
* has been opened, clients can connect to that server by using the
* {@link SharedWorkerServer} class.
*
* When implementing the *handler* function with the {@link SharedWorkerServer}
* instance, calls the {@link SharedWorkerAcceptor.accept} method if you want to
* accept the new client's connection. Otherwise you don't want to accept the
* client and reject its connection, just calls the
* {@link SharedWorkerAcceptor.reject} instead.
*
* @param handler Callback function called whenever client connects.
*/
SharedWorkerServer.prototype.open = function (handler) {
return __awaiter(this, void 0, void 0, function () {
var _this = this;
return __generator(this, function (_a) {
// TEST CONDITION
if ((0, tstl_1.is_node)() === true)
throw new Error("Error on SharedWorkerServer.open(): SharedWorker is not supported in the NodeJS.");
else if (self.document !== undefined)
throw new Error("Error on SharedWorkerServer.open(): this is not the SharedWorker.");
else if (this.state_ !== -1 /* SharedWorkerServer.State.NONE */)
throw new Error("Error on SharedWorkerServer.open(): the server has been opened yet.");
//----
// OPE SHARED-WORKER
//----
this.state_ = 0 /* SharedWorkerServer.State.OPENING */;
{
self.addEventListener("connect", function (evt) {
var e_1, _a;
try {
for (var _b = __values(evt.ports), _c = _b.next(); !_c.done; _c = _b.next()) {
var port = _c.value;
_this._Handle_connect(port, handler);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
});
}
this.state_ = 1 /* SharedWorkerServer.State.OPEN */;
return [2 /*return*/];
});
});
};
/**
* Close server.
*
* Close all connections between its remote clients ({@link SharedWorkerConnector}s).
*
* It destroys all RFCs (remote function calls) between this server and remote clients
* (through `Driver<Controller>`) that are not returned (completed) yet. The destruction
* causes all incomplete RFCs to throw exceptions.
*/
SharedWorkerServer.prototype.close = function () {
return __awaiter(this, void 0, void 0, function () {
var _a, _b, acceptor, e_2_1;
var e_2, _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0:
// TEST VALIDATION
if (this.state_ !== 1 /* SharedWorkerServer.State.OPEN */)
throw new Error("Error on SharedWorkerServer.close(): the server is not opened.");
_d.label = 1;
case 1:
_d.trys.push([1, 6, 7, 8]);
_a = __values(this.acceptors_), _b = _a.next();
_d.label = 2;
case 2:
if (!!_b.done) return [3 /*break*/, 5];
acceptor = _b.value;
return [4 /*yield*/, acceptor.close()];
case 3:
_d.sent();
_d.label = 4;
case 4:
_b = _a.next();
return [3 /*break*/, 2];
case 5: return [3 /*break*/, 8];
case 6:
e_2_1 = _d.sent();
e_2 = { error: e_2_1 };
return [3 /*break*/, 8];
case 7:
try {
if (_b && !_b.done && (_c = _a.return)) _c.call(_a);
}
finally { if (e_2) throw e_2.error; }
return [7 /*endfinally*/];
case 8: return [2 /*return*/];
}
});
});
};
/**
* @hidden
*/
SharedWorkerServer.prototype._Handle_connect = function (port, handler) {
var _this = this;
port.onmessage = (0, once_1.once)(function (evt) {
// ARGUMENTS
var wrapper = JSON.parse(evt.data);
// CREATE ACCEPTOR
/* eslint-disable */
var acceptor;
acceptor = SharedWorkerAcceptor_1.SharedWorkerAcceptor.create(port, wrapper.header, function () {
_this.acceptors_.erase(acceptor);
});
_this.acceptors_.insert(acceptor);
// SHIFT TO THE CALLBACK
handler(acceptor);
});
port.postMessage(0 /* SharedWorkerServer.State.OPENING */);
};
Object.defineProperty(SharedWorkerServer.prototype, "state", {
/* ----------------------------------------------------------------
ACCESSORS
---------------------------------------------------------------- */
/**
* Get server state.
*
* Get current state of the websocket server.
*
* List of values are such like below:
*
* - `NONE`: The `{@link SharedWorkerServer} instance is newly created, but did nothing yet.
* - `OPENING`: The {@link SharedWorkerServer.open} method is on running.
* - `OPEN`: The websocket server is online.
* - `CLOSING`: The {@link SharedWorkerServer.close} method is on running.
* - `CLOSED`: The websocket server is offline.
*/
get: function () {
return this.state_;
},
enumerable: false,
configurable: true
});
return SharedWorkerServer;
}());
exports.SharedWorkerServer = SharedWorkerServer;
/**
*
*/
(function (SharedWorkerServer) {
})(SharedWorkerServer || (exports.SharedWorkerServer = SharedWorkerServer = {}));
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