зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
2.7 KiB
JavaScript
113 строки
2.7 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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// Each worker debugger supports only a single connection to the main thread.
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// However, its theoretically possible for multiple servers to connect to the
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// same worker. Consequently, each transport has a connection id, to allow
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// messages from multiple connections to be multiplexed on a single channel.
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/**
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* A transport that uses a WorkerDebugger to send packets from the main
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* thread to a worker thread.
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*/
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class MainThreadWorkerDebuggerTransport {
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constructor(dbg, id) {
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this._dbg = dbg;
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this._id = id;
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this._dbgListener = {
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onMessage: this._onMessage.bind(this),
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};
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}
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ready() {
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this._dbg.addListener(this._dbgListener);
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}
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close() {
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if (this._dbgListener) {
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this._dbg.removeListener(this._dbgListener);
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}
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this._dbgListener = null;
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this.hooks?.onClosed();
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}
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send(packet) {
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this._dbg.postMessage(
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JSON.stringify({
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type: "message",
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id: this._id,
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message: packet,
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})
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);
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}
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startBulkSend() {
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throw new Error("Can't send bulk data from worker threads!");
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}
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_onMessage(message) {
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const packet = JSON.parse(message);
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if (packet.type !== "message" || packet.id !== this._id || !this.hooks) {
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return;
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}
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this.hooks.onPacket(packet.message);
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}
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}
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exports.MainThreadWorkerDebuggerTransport = MainThreadWorkerDebuggerTransport;
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/**
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* A transport that uses a WorkerDebuggerGlobalScope to send packets from a
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* worker thread to the main thread.
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*/
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function WorkerThreadWorkerDebuggerTransport(scope, id) {
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this._scope = scope;
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this._id = id;
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this._onMessage = this._onMessage.bind(this);
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}
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WorkerThreadWorkerDebuggerTransport.prototype = {
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constructor: WorkerThreadWorkerDebuggerTransport,
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ready: function() {
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this._scope.addEventListener("message", this._onMessage);
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},
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close: function() {
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this._scope.removeEventListener("message", this._onMessage);
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this.hooks?.onClosed();
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},
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send: function(packet) {
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this._scope.postMessage(
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JSON.stringify({
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type: "message",
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id: this._id,
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message: packet,
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})
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);
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},
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startBulkSend: function() {
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throw new Error("Can't send bulk data from worker threads!");
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},
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_onMessage: function(event) {
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const packet = JSON.parse(event.data);
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if (packet.type !== "message" || packet.id !== this._id) {
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return;
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}
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if (this.hooks) {
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this.hooks.onPacket(packet.message);
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}
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},
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};
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exports.WorkerThreadWorkerDebuggerTransport = WorkerThreadWorkerDebuggerTransport;
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