Extract 255 into a constant.

This commit is contained in:
James Coglan
2011-12-17 19:22:46 +00:00
parent f0f0bfc951
commit f5a78efcfd
+13 -11
View File
@@ -11,6 +11,7 @@ var Protocol8Parser = function(webSocket, options) {
};
var instance = {
BYTE: 255,
FIN: 128,
MASK: 128,
RSV1: 64,
@@ -169,6 +170,7 @@ var instance = {
offset = header + (this._masking ? 4 : 0),
masked = this._masking ? this.MASK : 0,
frame = new Buffer(length + offset),
BYTE = this.BYTE,
mask, i;
frame[0] = this.FIN | opcode;
@@ -178,22 +180,22 @@ var instance = {
} else if (length <= 65535) {
frame[1] = masked | 126;
frame[2] = Math.floor(length / 256);
frame[3] = length & 255;
frame[3] = length & BYTE;
} else {
frame[1] = masked | 127;
frame[2] = Math.floor(length / Math.pow(2,56)) & 255;
frame[3] = Math.floor(length / Math.pow(2,48)) & 255;
frame[4] = Math.floor(length / Math.pow(2,40)) & 255;
frame[5] = Math.floor(length / Math.pow(2,32)) & 255;
frame[6] = Math.floor(length / Math.pow(2,24)) & 255;
frame[7] = Math.floor(length / Math.pow(2,16)) & 255;
frame[8] = Math.floor(length / Math.pow(2,8)) & 255;
frame[9] = length & 255;
frame[2] = Math.floor(length / Math.pow(2,56)) & BYTE;
frame[3] = Math.floor(length / Math.pow(2,48)) & BYTE;
frame[4] = Math.floor(length / Math.pow(2,40)) & BYTE;
frame[5] = Math.floor(length / Math.pow(2,32)) & BYTE;
frame[6] = Math.floor(length / Math.pow(2,24)) & BYTE;
frame[7] = Math.floor(length / Math.pow(2,16)) & BYTE;
frame[8] = Math.floor(length / Math.pow(2,8)) & BYTE;
frame[9] = length & BYTE;
}
if (code) {
frame[offset] = Math.floor(code / 256);
frame[offset+1] = code & 255;
frame[offset] = Math.floor(code / 256) & BYTE;
frame[offset+1] = code & BYTE;
}
buffer.copy(frame, offset + insert);