[apps/tidep0084.git] / prebuilt / iot-gateway / node_modules / concat-stream / node_modules / readable-stream / lib / _stream_duplex.js
diff --git a/prebuilt/iot-gateway/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_duplex.js b/prebuilt/iot-gateway/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_duplex.js
--- a/prebuilt/iot-gateway/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_duplex.js
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a duplex stream is just a stream that is both readable and writable.
-// Since JS doesn't have multiple prototypal inheritance, this class
-// prototypally inherits from Readable, and then parasitically from
-// Writable.
-
-module.exports = Duplex;
-
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
- var keys = [];
- for (var key in obj) keys.push(key);
- return keys;
-}
-/*</replacement>*/
-
-
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
-
-var Readable = require('./_stream_readable');
-var Writable = require('./_stream_writable');
-
-util.inherits(Duplex, Readable);
-
-forEach(objectKeys(Writable.prototype), function(method) {
- if (!Duplex.prototype[method])
- Duplex.prototype[method] = Writable.prototype[method];
-});
-
-function Duplex(options) {
- if (!(this instanceof Duplex))
- return new Duplex(options);
-
- Readable.call(this, options);
- Writable.call(this, options);
-
- if (options && options.readable === false)
- this.readable = false;
-
- if (options && options.writable === false)
- this.writable = false;
-
- this.allowHalfOpen = true;
- if (options && options.allowHalfOpen === false)
- this.allowHalfOpen = false;
-
- this.once('end', onend);
-}
-
-// the no-half-open enforcer
-function onend() {
- // if we allow half-open state, or if the writable side ended,
- // then we're ok.
- if (this.allowHalfOpen || this._writableState.ended)
- return;
-
- // no more data can be written.
- // But allow more writes to happen in this tick.
- process.nextTick(this.end.bind(this));
-}
-
-function forEach (xs, f) {
- for (var i = 0, l = xs.length; i < l; i++) {
- f(xs[i], i);
- }
-}