我有一个AS3 Websocket客户端，可以成功连接到node-js服务器。
在客户端上，WebSocket类具有以下属性：
private static const CONNECTING:int = 0;
private static const OPEN:int = 1;
private static const CLOSING:int = 2;
private static const CLOSED:int = 3;
private var readyState:int = CONNECTING;
当我与服务器建立连接时，客户端触发函数“onSocketData（）”（此函数在WebSocket类中）并且必须将参数“readyState”的值更改为“1”，具有此值客户端可以向服务器发送消息。
问题：
函数“onSocketData（）”的过程永远不会改变“readyState”的值。
这是onSocketData（）函数的代码：
private function onSocketData(event:ProgressEvent):void {
trace(readyState);
var pos:int = buffer.length;
socket.readBytes(buffer, pos);
for (; pos < buffer.length; ++pos) {
trace(buffer.length + " pos-->" + pos + " headerState -->" + headerState+" buferpos -->"+buffer[pos]);
if (headerState < 4) {
// try to find "\r\n\r\n"
if ((headerState == 0 || headerState == 2) && buffer[pos] == 0x0d) {//this sentence is never fulfilled
++headerState;
} else if ((headerState == 1 || headerState == 3) && buffer[pos] == 0x0a) {//this sentence is never fulfilled
++headerState;
} else {
headerState = 0;
}
if (headerState == 4) {
var headerStr:String = readUTFBytes(buffer, 0, pos + 1);
trace("response header:\n" + headerStr);
if (!validateHandshake(headerStr)) return;
removeBufferBefore(pos + 1);
pos = -1;
readyState = OPEN;// here must be changue the value
this.dispatchEvent(new WebSocketEvent("open"));
}
} else {
var frame:WebSocketFrame = parseFrame();
if (frame) {
removeBufferBefore(frame.length);
pos = -1;
if (frame.rsv != 0) {
close(1002, "RSV must be 0.");
} else if (frame.mask) {
close(1002, "Frame from server must not be masked.");
} else if (frame.opcode >= 0x08 && frame.opcode <= 0x0f && frame.payload.length >= 126) {
close(1004, "Payload of control frame must be less than 126 bytes.");
} else {
switch (frame.opcode) {
case OPCODE_CONTINUATION:
if (fragmentsBuffer == null) {
close(1002, "Unexpected continuation frame");
} else {
fragmentsBuffer.writeBytes(frame.payload);
if (frame.fin) {
data = readUTFBytes(fragmentsBuffer, 0, fragmentsBuffer.length);
try {
this.dispatchEvent(new WebSocketEvent("message", encodeURIComponent(data)));
} catch (ex:URIError) {
close(1007, "URIError while encoding the received data.");
}
fragmentsBuffer = null;
}
}
break;
case OPCODE_TEXT:
if (frame.fin) {
var data:String = readUTFBytes(frame.payload, 0, frame.payload.length);
try {
this.dispatchEvent(new WebSocketEvent("message", encodeURIComponent(data)));
} catch (ex:URIError) {
close(1007, "URIError while encoding the received data.");
}
} else {
fragmentsBuffer = new ByteArray();
fragmentsBuffer.writeBytes(frame.payload);
}
break;
case OPCODE_BINARY:
// See https://github.com/gimite/web-socket-js/pull/89
// for discussion about supporting binary data.
close(1003, "Received binary data, which is not supported.");
break;
case OPCODE_CLOSE:
// Extracts code and reason string.
var code:int = STATUS_NO_CODE;
var reason:String = "";
if (frame.payload.length >= 2) {
frame.payload.endian = Endian.BIG_ENDIAN;
frame.payload.position = 0;
code = frame.payload.readUnsignedShort();
reason = readUTFBytes(frame.payload, 2, frame.payload.length - 2);
}
trace("received closing frame");
close(code, reason, "server");
break;
case OPCODE_PING:
sendPong(frame.payload);
break;
case OPCODE_PONG:
break;
default:
close(1002, "Received unknown opcode: " + frame.opcode);
break;
}
}
}
}
}
}
句子：
“if（（headerState == 0 || headerState == 2）＆amp;＆amp; buffer [pos] == 0x0d）”
和
“if（（headerState == 1 || headerState == 3）＆amp;＆amp; buffer [pos] == 0x0a）”
永远不会实现，所以参数“headerState”永远不会添加+1，然后是句子
“if（headerState == 4）”
永远不会实现，readyState永远不会取“1”（1表示开放式连接）
你可以帮我解决这个问题吗？如果我的解释错了，你能告诉我为了使这段代码有效吗？
注意：当我强制readyState的changue为1时，消息被释放，服务器可以读取它，但是当我发送4个或更多消息时，服务器给我一个溢出错误。