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