@uupaa msgpack.js: modification to unpack buffer which has multiple message pack records

gistfile1.txt

[iyatomi@localhost msgpack]$ diff _msgpack.js msgpack.js
63c63
<                                // @return Mix/undefined/null:
---
>                                // @return Mix/undefined:
65d64
<                                //       null means buffer exhausted
69,75c68,69
<       if (data != null) {
<         _buf = typeof data === "string" ? toByteArray(data) : data;
<         _idx = -1;
<     }
<     else if (_buf.length <= _idx) {
<         return null;
<     }
---
>     _buf = typeof data === "string" ? toByteArray(data) : data;
>     _idx = -1;


usage: 
like C function strtok 

Dispatcher.prototype.recv = function(conn, e) {
		var self = this;
		var m = _G.msgpack.unpack(new Uint8Array(e.data));
		if (typeof(m) == undefined) {
			return;
		}
		while (m != null) {
			if (m[0] == RESPONSE) {
				var cb = self.dispatch_table[m[1]];
				self.dispatch_table[m[1]] = null;
				cb(conn, m[3], m[2]);
			}
			else if (m[0] == REQUEST) {
				/* TODO: resolve function with _G and m[1] and call it */
				resp = [RESPONSE, m[2]].concat(self.fetch(_G, m));
				conn.send(_G.msgpack.pack(resp))
			}
			m = _G.msgpack.unpack(null);
		}
	}