第一次提交 游戏界面资源数据已更新

tools/server2017-64-stable/node_modules/nodejs-websocket/OutStream.js

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+/**
+ * @file Simple wrapper for stream.Writable, used for sending binary data
+ */
+'use strict'
+
+var util = require('util'),
+	stream = require('stream'),
+	frame = require('./frame')
+
+/**
+ * @class Represents the writable stream for binary frames
+ * @param {Connection} connection
+ * @param {number} minSize
+ */
+function OutStream(connection, minSize) {
+	var that = this
+	this.connection = connection
+	this.minSize = minSize
+	this.buffer = new Buffer(0)
+	this.hasSent = false // Indicates if any frame has been sent yet
+	stream.Writable.call(this)
+	this.on('finish', function () {
+		if (that.connection.readyState === that.connection.OPEN) {
+			// Ignore if not connected anymore
+			that.connection.socket.write(frame.createBinaryFrame(that.buffer, !that.connection.server, !that.hasSent, true))
+		}
+		that.connection.outStream = null
+	})
+}
+
+module.exports = OutStream
+
+
+util.inherits(OutStream, stream.Writable)
+
+/**
+ * @param {Buffer} chunk
+ * @param {string} encoding
+ * @param {Function} callback
+ * @private
+ */
+OutStream.prototype._write = function (chunk, encoding, callback) {
+	var frameBuffer
+	this.buffer = Buffer.concat([this.buffer, chunk], this.buffer.length + chunk.length)
+	if (this.buffer.length >= this.minSize) {
+		if (this.connection.readyState === this.connection.OPEN) {
+			// Ignore if not connected anymore
+			frameBuffer = frame.createBinaryFrame(this.buffer, !this.connection.server, !this.hasSent, false)
+			this.connection.socket.write(frameBuffer, encoding, callback)
+		}
+		this.buffer = new Buffer(0)
+		this.hasSent = true
+		if (this.connection.readyState !== this.connection.OPEN) {
+			callback()
+		}
+	} else {
+		callback()
+	}
+}