1 files changed, 105 insertions, 0 deletions
diff --git a/node_modules/ws/bench/util.js b/node_modules/ws/bench/util.js
new file mode 100644
index 0000000..5f01281
--- /dev/null
+++ b/node_modules/ws/bench/util.js
@@ -0,0 +1,105 @@
+/*!
+ * ws: a node.js websocket client
+ * Copyright(c) 2011 Einar Otto Stangvik <einaros@gmail.com>
+ * MIT Licensed
+ */
+
+/**
+ * Returns a Buffer from a "ff 00 ff"-type hex string.
+ */
+
+getBufferFromHexString = function(byteStr) {
+  var bytes = byteStr.split(' ');
+  var buf = new Buffer(bytes.length);
+  for (var i = 0; i < bytes.length; ++i) {
+    buf[i] = parseInt(bytes[i], 16);
+  }
+  return buf;
+}
+
+/**
+ * Returns a hex string from a Buffer.
+ */
+
+getHexStringFromBuffer = function(data) {
+  var s = '';
+  for (var i = 0; i < data.length; ++i) {
+    s += padl(data[i].toString(16), 2, '0') + ' ';
+  }
+  return s.trim();
+}
+
+/**
+ * Splits a buffer in two parts.
+ */
+
+splitBuffer = function(buffer) {
+  var b1 = new Buffer(Math.ceil(buffer.length / 2));
+  buffer.copy(b1, 0, 0, b1.length);
+  var b2 = new Buffer(Math.floor(buffer.length / 2));
+  buffer.copy(b2, 0, b1.length, b1.length + b2.length);
+  return [b1, b2];
+}
+
+/**
+ * Performs hybi07+ type masking on a hex string or buffer.
+ */
+
+mask = function(buf, maskString) {
+  if (typeof buf == 'string') buf = new Buffer(buf);
+  var mask = getBufferFromHexString(maskString || '34 83 a8 68');
+  for (var i = 0; i < buf.length; ++i) {
+    buf[i] ^= mask[i % 4];    
+  }
+  return buf;
+}
+
+/**
+ * Returns a hex string representing the length of a message
+ */
+ 
+getHybiLengthAsHexString = function(len, masked) {  
+  if (len < 126) {
+    var buf = new Buffer(1);
+    buf[0] = (masked ? 0x80 : 0) | len;
+  }
+  else if (len < 65536) {
+    var buf = new Buffer(3);
+    buf[0] = (masked ? 0x80 : 0) | 126;
+    getBufferFromHexString(pack(4, len)).copy(buf, 1);
+  }
+  else {
+    var buf = new Buffer(9);
+    buf[0] = (masked ? 0x80 : 0) | 127;
+    getBufferFromHexString(pack(16, len)).copy(buf, 1);
+  }
+  return getHexStringFromBuffer(buf);
+}
+
+/**
+ * Unpacks a Buffer into a number.
+ */
+
+unpack = function(buffer) {
+  var n = 0;
+  for (var i = 0; i < buffer.length; ++i) {
+    n = (i == 0) ? buffer[i] : (n * 256) + buffer[i];
+  }
+  return n;
+}
+
+/**
+ * Returns a hex string, representing a specific byte count 'length', from a number.
+ */
+
+pack = function(length, number) {
+  return padl(number.toString(16), length, '0').replace(/([0-9a-f][0-9a-f])/gi, '$1 ').trim();
+}
+
+/**
+ * Left pads the string 's' to a total length of 'n' with char 'c'.
+ */
+
+padl = function(s, n, c) { 
+  return new Array(1 + n - s.length).join(c) + s;
+}