diff options
Diffstat (limited to 'includes/external/signal/node_modules/combined-stream/lib')
-rw-r--r-- | includes/external/signal/node_modules/combined-stream/lib/combined_stream.js | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/includes/external/signal/node_modules/combined-stream/lib/combined_stream.js b/includes/external/signal/node_modules/combined-stream/lib/combined_stream.js deleted file mode 100644 index 125f097..0000000 --- a/includes/external/signal/node_modules/combined-stream/lib/combined_stream.js +++ /dev/null @@ -1,208 +0,0 @@ -var util = require('util'); -var Stream = require('stream').Stream; -var DelayedStream = require('delayed-stream'); - -module.exports = CombinedStream; -function CombinedStream() { - this.writable = false; - this.readable = true; - this.dataSize = 0; - this.maxDataSize = 2 * 1024 * 1024; - this.pauseStreams = true; - - this._released = false; - this._streams = []; - this._currentStream = null; - this._insideLoop = false; - this._pendingNext = false; -} -util.inherits(CombinedStream, Stream); - -CombinedStream.create = function(options) { - var combinedStream = new this(); - - options = options || {}; - for (var option in options) { - combinedStream[option] = options[option]; - } - - return combinedStream; -}; - -CombinedStream.isStreamLike = function(stream) { - return (typeof stream !== 'function') - && (typeof stream !== 'string') - && (typeof stream !== 'boolean') - && (typeof stream !== 'number') - && (!Buffer.isBuffer(stream)); -}; - -CombinedStream.prototype.append = function(stream) { - var isStreamLike = CombinedStream.isStreamLike(stream); - - if (isStreamLike) { - if (!(stream instanceof DelayedStream)) { - var newStream = DelayedStream.create(stream, { - maxDataSize: Infinity, - pauseStream: this.pauseStreams, - }); - stream.on('data', this._checkDataSize.bind(this)); - stream = newStream; - } - - this._handleErrors(stream); - - if (this.pauseStreams) { - stream.pause(); - } - } - - this._streams.push(stream); - return this; -}; - -CombinedStream.prototype.pipe = function(dest, options) { - Stream.prototype.pipe.call(this, dest, options); - this.resume(); - return dest; -}; - -CombinedStream.prototype._getNext = function() { - this._currentStream = null; - - if (this._insideLoop) { - this._pendingNext = true; - return; // defer call - } - - this._insideLoop = true; - try { - do { - this._pendingNext = false; - this._realGetNext(); - } while (this._pendingNext); - } finally { - this._insideLoop = false; - } -}; - -CombinedStream.prototype._realGetNext = function() { - var stream = this._streams.shift(); - - - if (typeof stream == 'undefined') { - this.end(); - return; - } - - if (typeof stream !== 'function') { - this._pipeNext(stream); - return; - } - - var getStream = stream; - getStream(function(stream) { - var isStreamLike = CombinedStream.isStreamLike(stream); - if (isStreamLike) { - stream.on('data', this._checkDataSize.bind(this)); - this._handleErrors(stream); - } - - this._pipeNext(stream); - }.bind(this)); -}; - -CombinedStream.prototype._pipeNext = function(stream) { - this._currentStream = stream; - - var isStreamLike = CombinedStream.isStreamLike(stream); - if (isStreamLike) { - stream.on('end', this._getNext.bind(this)); - stream.pipe(this, {end: false}); - return; - } - - var value = stream; - this.write(value); - this._getNext(); -}; - -CombinedStream.prototype._handleErrors = function(stream) { - var self = this; - stream.on('error', function(err) { - self._emitError(err); - }); -}; - -CombinedStream.prototype.write = function(data) { - this.emit('data', data); -}; - -CombinedStream.prototype.pause = function() { - if (!this.pauseStreams) { - return; - } - - if(this.pauseStreams && this._currentStream && typeof(this._currentStream.pause) == 'function') this._currentStream.pause(); - this.emit('pause'); -}; - -CombinedStream.prototype.resume = function() { - if (!this._released) { - this._released = true; - this.writable = true; - this._getNext(); - } - - if(this.pauseStreams && this._currentStream && typeof(this._currentStream.resume) == 'function') this._currentStream.resume(); - this.emit('resume'); -}; - -CombinedStream.prototype.end = function() { - this._reset(); - this.emit('end'); -}; - -CombinedStream.prototype.destroy = function() { - this._reset(); - this.emit('close'); -}; - -CombinedStream.prototype._reset = function() { - this.writable = false; - this._streams = []; - this._currentStream = null; -}; - -CombinedStream.prototype._checkDataSize = function() { - this._updateDataSize(); - if (this.dataSize <= this.maxDataSize) { - return; - } - - var message = - 'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.'; - this._emitError(new Error(message)); -}; - -CombinedStream.prototype._updateDataSize = function() { - this.dataSize = 0; - - var self = this; - this._streams.forEach(function(stream) { - if (!stream.dataSize) { - return; - } - - self.dataSize += stream.dataSize; - }); - - if (this._currentStream && this._currentStream.dataSize) { - this.dataSize += this._currentStream.dataSize; - } -}; - -CombinedStream.prototype._emitError = function(err) { - this._reset(); - this.emit('error', err); -}; |