mirror of
				https://github.com/musix-org/musix-oss
				synced 2025-11-04 00:29:32 +00:00 
			
		
		
		
	Updated everything
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test
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								node_modules/delayed-stream/License
									
									
									
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								node_modules/delayed-stream/License
									
									
									
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Copyright (c) 2011 Debuggable Limited <felix@debuggable.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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SHELL := /bin/bash
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test:
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	@./test/run.js
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.PHONY: test
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# delayed-stream
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Buffers events from a stream until you are ready to handle them.
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## Installation
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``` bash
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npm install delayed-stream
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```
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## Usage
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The following example shows how to write a http echo server that delays its
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response by 1000 ms.
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``` javascript
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var DelayedStream = require('delayed-stream');
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var http = require('http');
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http.createServer(function(req, res) {
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  var delayed = DelayedStream.create(req);
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  setTimeout(function() {
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    res.writeHead(200);
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    delayed.pipe(res);
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  }, 1000);
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});
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```
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If you are not using `Stream#pipe`, you can also manually release the buffered
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events by calling `delayedStream.resume()`:
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``` javascript
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var delayed = DelayedStream.create(req);
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setTimeout(function() {
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  // Emit all buffered events and resume underlaying source
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  delayed.resume();
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}, 1000);
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```
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## Implementation
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In order to use this meta stream properly, here are a few things you should
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know about the implementation.
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### Event Buffering / Proxying
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All events of the `source` stream are hijacked by overwriting the `source.emit`
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method. Until node implements a catch-all event listener, this is the only way.
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However, delayed-stream still continues to emit all events it captures on the
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`source`, regardless of whether you have released the delayed stream yet or
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not.
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Upon creation, delayed-stream captures all `source` events and stores them in
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an internal event buffer. Once `delayedStream.release()` is called, all
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buffered events are emitted on the `delayedStream`, and the event buffer is
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cleared. After that, delayed-stream merely acts as a proxy for the underlaying
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source.
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### Error handling
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Error events on `source` are buffered / proxied just like any other events.
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However, `delayedStream.create` attaches a no-op `'error'` listener to the
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`source`. This way you only have to handle errors on the `delayedStream`
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object, rather than in two places.
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### Buffer limits
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delayed-stream provides a `maxDataSize` property that can be used to limit
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the amount of data being buffered. In order to protect you from bad `source`
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streams that don't react to `source.pause()`, this feature is enabled by
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default.
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## API
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### DelayedStream.create(source, [options])
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Returns a new `delayedStream`. Available options are:
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* `pauseStream`
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* `maxDataSize`
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The description for those properties can be found below.
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### delayedStream.source
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The `source` stream managed by this object. This is useful if you are
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passing your `delayedStream` around, and you still want to access properties
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on the `source` object.
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### delayedStream.pauseStream = true
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Whether to pause the underlaying `source` when calling
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`DelayedStream.create()`. Modifying this property afterwards has no effect.
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### delayedStream.maxDataSize = 1024 * 1024
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The amount of data to buffer before emitting an `error`.
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If the underlaying source is emitting `Buffer` objects, the `maxDataSize`
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refers to bytes.
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If the underlaying source is emitting JavaScript strings, the size refers to
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characters.
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If you know what you are doing, you can set this property to `Infinity` to
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disable this feature. You can also modify this property during runtime.
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### delayedStream.dataSize = 0
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The amount of data buffered so far.
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### delayedStream.readable
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An ECMA5 getter that returns the value of `source.readable`.
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### delayedStream.resume()
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If the `delayedStream` has not been released so far, `delayedStream.release()`
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is called.
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In either case, `source.resume()` is called.
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### delayedStream.pause()
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Calls `source.pause()`.
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### delayedStream.pipe(dest)
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Calls `delayedStream.resume()` and then proxies the arguments to `source.pipe`.
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### delayedStream.release()
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Emits and clears all events that have been buffered up so far. This does not
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resume the underlaying source, use `delayedStream.resume()` instead.
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## License
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delayed-stream is licensed under the MIT license.
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var Stream = require('stream').Stream;
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var util = require('util');
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module.exports = DelayedStream;
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function DelayedStream() {
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  this.source = null;
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  this.dataSize = 0;
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  this.maxDataSize = 1024 * 1024;
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  this.pauseStream = true;
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  this._maxDataSizeExceeded = false;
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  this._released = false;
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  this._bufferedEvents = [];
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}
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util.inherits(DelayedStream, Stream);
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DelayedStream.create = function(source, options) {
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  var delayedStream = new this();
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  options = options || {};
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  for (var option in options) {
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    delayedStream[option] = options[option];
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  }
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  delayedStream.source = source;
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  var realEmit = source.emit;
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  source.emit = function() {
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    delayedStream._handleEmit(arguments);
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    return realEmit.apply(source, arguments);
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  };
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  source.on('error', function() {});
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  if (delayedStream.pauseStream) {
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    source.pause();
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  }
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  return delayedStream;
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};
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Object.defineProperty(DelayedStream.prototype, 'readable', {
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  configurable: true,
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  enumerable: true,
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  get: function() {
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    return this.source.readable;
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  }
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});
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DelayedStream.prototype.setEncoding = function() {
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  return this.source.setEncoding.apply(this.source, arguments);
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};
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DelayedStream.prototype.resume = function() {
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  if (!this._released) {
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    this.release();
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  }
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  this.source.resume();
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};
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DelayedStream.prototype.pause = function() {
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  this.source.pause();
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};
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DelayedStream.prototype.release = function() {
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  this._released = true;
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  this._bufferedEvents.forEach(function(args) {
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    this.emit.apply(this, args);
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  }.bind(this));
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  this._bufferedEvents = [];
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};
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DelayedStream.prototype.pipe = function() {
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  var r = Stream.prototype.pipe.apply(this, arguments);
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  this.resume();
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  return r;
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};
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DelayedStream.prototype._handleEmit = function(args) {
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  if (this._released) {
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    this.emit.apply(this, args);
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    return;
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  }
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  if (args[0] === 'data') {
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    this.dataSize += args[1].length;
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    this._checkIfMaxDataSizeExceeded();
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  }
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  this._bufferedEvents.push(args);
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};
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DelayedStream.prototype._checkIfMaxDataSizeExceeded = function() {
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  if (this._maxDataSizeExceeded) {
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    return;
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  }
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  if (this.dataSize <= this.maxDataSize) {
 | 
			
		||||
    return;
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		||||
  }
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  this._maxDataSizeExceeded = true;
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  var message =
 | 
			
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    'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.'
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  this.emit('error', new Error(message));
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};
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{
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		||||
  "_from": "delayed-stream@~1.0.0",
 | 
			
		||||
  "_id": "delayed-stream@1.0.0",
 | 
			
		||||
  "_inBundle": false,
 | 
			
		||||
  "_integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
 | 
			
		||||
  "_location": "/delayed-stream",
 | 
			
		||||
  "_phantomChildren": {},
 | 
			
		||||
  "_requested": {
 | 
			
		||||
    "type": "range",
 | 
			
		||||
    "registry": true,
 | 
			
		||||
    "raw": "delayed-stream@~1.0.0",
 | 
			
		||||
    "name": "delayed-stream",
 | 
			
		||||
    "escapedName": "delayed-stream",
 | 
			
		||||
    "rawSpec": "~1.0.0",
 | 
			
		||||
    "saveSpec": null,
 | 
			
		||||
    "fetchSpec": "~1.0.0"
 | 
			
		||||
  },
 | 
			
		||||
  "_requiredBy": [
 | 
			
		||||
    "/combined-stream"
 | 
			
		||||
  ],
 | 
			
		||||
  "_resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
 | 
			
		||||
  "_shasum": "df3ae199acadfb7d440aaae0b29e2272b24ec619",
 | 
			
		||||
  "_spec": "delayed-stream@~1.0.0",
 | 
			
		||||
  "_where": "C:\\Users\\matia\\Bot Files\\node_modules\\combined-stream",
 | 
			
		||||
  "author": {
 | 
			
		||||
    "name": "Felix Geisendörfer",
 | 
			
		||||
    "email": "felix@debuggable.com",
 | 
			
		||||
    "url": "http://debuggable.com/"
 | 
			
		||||
  },
 | 
			
		||||
  "bugs": {
 | 
			
		||||
    "url": "https://github.com/felixge/node-delayed-stream/issues"
 | 
			
		||||
  },
 | 
			
		||||
  "bundleDependencies": false,
 | 
			
		||||
  "contributors": [
 | 
			
		||||
    {
 | 
			
		||||
      "name": "Mike Atkins",
 | 
			
		||||
      "email": "apeherder@gmail.com"
 | 
			
		||||
    }
 | 
			
		||||
  ],
 | 
			
		||||
  "dependencies": {},
 | 
			
		||||
  "deprecated": false,
 | 
			
		||||
  "description": "Buffers events from a stream until you are ready to handle them.",
 | 
			
		||||
  "devDependencies": {
 | 
			
		||||
    "fake": "0.2.0",
 | 
			
		||||
    "far": "0.0.1"
 | 
			
		||||
  },
 | 
			
		||||
  "engines": {
 | 
			
		||||
    "node": ">=0.4.0"
 | 
			
		||||
  },
 | 
			
		||||
  "homepage": "https://github.com/felixge/node-delayed-stream",
 | 
			
		||||
  "license": "MIT",
 | 
			
		||||
  "main": "./lib/delayed_stream",
 | 
			
		||||
  "name": "delayed-stream",
 | 
			
		||||
  "repository": {
 | 
			
		||||
    "type": "git",
 | 
			
		||||
    "url": "git://github.com/felixge/node-delayed-stream.git"
 | 
			
		||||
  },
 | 
			
		||||
  "scripts": {
 | 
			
		||||
    "test": "make test"
 | 
			
		||||
  },
 | 
			
		||||
  "version": "1.0.0"
 | 
			
		||||
}
 | 
			
		||||
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