85 lines
2.7 KiB
JavaScript
85 lines
2.7 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.PipeTransport = void 0;
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var _utils = require("../utils");
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var _debugLogger = require("../utils/debugLogger");
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/**
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* Copyright 2018 Google Inc. All rights reserved.
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* Modifications copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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class PipeTransport {
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constructor(pipeWrite, pipeRead) {
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this._pipeRead = void 0;
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this._pipeWrite = void 0;
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this._pendingBuffers = [];
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this._waitForNextTask = (0, _utils.makeWaitForNextTask)();
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this._closed = false;
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this._onclose = void 0;
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this.onmessage = void 0;
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this._pipeRead = pipeRead;
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this._pipeWrite = pipeWrite;
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pipeRead.on('data', buffer => this._dispatch(buffer));
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pipeRead.on('close', () => {
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this._closed = true;
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if (this._onclose) this._onclose.call(null);
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});
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pipeRead.on('error', e => _debugLogger.debugLogger.log('error', e));
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pipeWrite.on('error', e => _debugLogger.debugLogger.log('error', e));
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this.onmessage = undefined;
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}
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get onclose() {
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return this._onclose;
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}
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set onclose(onclose) {
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this._onclose = onclose;
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if (onclose && !this._pipeRead.readable) onclose();
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}
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send(message) {
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if (this._closed) throw new Error('Pipe has been closed');
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this._pipeWrite.write(JSON.stringify(message));
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this._pipeWrite.write('\0');
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}
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close() {
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throw new Error('unimplemented');
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}
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_dispatch(buffer) {
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let end = buffer.indexOf('\0');
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if (end === -1) {
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this._pendingBuffers.push(buffer);
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return;
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}
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this._pendingBuffers.push(buffer.slice(0, end));
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const message = Buffer.concat(this._pendingBuffers).toString();
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this._waitForNextTask(() => {
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if (this.onmessage) this.onmessage.call(null, JSON.parse(message));
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});
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let start = end + 1;
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end = buffer.indexOf('\0', start);
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while (end !== -1) {
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const message = buffer.toString(undefined, start, end);
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this._waitForNextTask(() => {
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if (this.onmessage) this.onmessage.call(null, JSON.parse(message));
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});
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start = end + 1;
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end = buffer.indexOf('\0', start);
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}
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this._pendingBuffers = [buffer.slice(start)];
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}
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}
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exports.PipeTransport = PipeTransport;
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