function stringToBuffer(string) {
var buffer = new Buffer(Buffer.byteLength(string));
buffer.utf8Write(string);
return buffer;
}
assert.throws(function () {
b.unpack('N', 8);
});
b[4] = 0xDE;
b[5] = 0xAD;
b[6] = 0xBE;
b[7] = 0xEF;
assert.deepEqual([0xDEADBEEF], b.unpack('N', 4));
// Bug regression test
var testValue = '\u00F6\u65E5\u672C\u8A9E'; // ö日本語
var buffer = new Buffer(32);
var size = buffer.utf8Write(testValue, 0);
puts('bytes written to buffer: ' + size);
var slice = buffer.toString('utf8', 0, size);
assert.equal(slice, testValue);
// Test triple slice
var a = new Buffer(8);
for (var i = 0; i < 8; i++) a[i] = i;
var b = a.slice(4,8);
assert.equal(4, b[0]);
assert.equal(5, b[1]);
assert.equal(6, b[2]);
assert.equal(7, b[3]);
var c = b.slice(2 , 4);
assert.equal(6, c[0]);
Connection.prototype._sendBody = function (channel, body, properties) {
// Handles 3 cases
// - body is utf8 string
// - body is instance of Buffer
// - body is an object and its JSON representation is sent
// Does not handle the case for streaming bodies.
if (typeof(body) == 'string') {
var length = Buffer.byteLength(body);
//debug('send message length ' + length);
sendHeader(this, channel, length, properties);
//debug('header sent');
var b = new Buffer(7+length+1);
b.used = 0;
b[b.used++] = 3; // constants.frameBody
serializeInt(b, 2, channel);
serializeInt(b, 4, length);
b.utf8Write(body, b.used);
b.used += length;
b[b.used++] = 206; // constants.frameEnd;
return this.write(b);
//debug('body sent: ' + JSON.stringify(b));
} else if (body instanceof Buffer) {
sendHeader(this, channel, body.length, properties);
var b = new Buffer(7);
b.used = 0;
b[b.used++] = 3; // constants.frameBody
serializeInt(b, 2, channel);
serializeInt(b, 4, body.length);
this.write(b);
this.write(body);
return this.write(String.fromCharCode(206)); // frameEnd
} else {
// Optimize for JSON.
// Use asciiWrite() which is much faster than utf8Write().
var jsonBody = JSON.stringify(body);
var length = jsonBody.length;
debug('sending json: ' + jsonBody);
properties = mixin({contentType: 'text/json' }, properties);
sendHeader(this, channel, length, properties);
var b = new Buffer(7+length+1);
b.used = 0;
b[b.used++] = 3; // constants.frameBody
serializeInt(b, 2, channel);
serializeInt(b, 4, length);
b.asciiWrite(jsonBody, b.used);
b.used += length;
b[b.used++] = 206; // constants.frameEnd;
return this.write(b);
}
};