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POAS3 Socket ProcessEvent.SOCKET_DATA seems not triggered
 

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  1. POAS3 Socket ProcessEvent.SOCKET_DATA seems not triggered
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    <p>We use AS3 Event:ProcessEvent.SOCKET_DATA to listen for socket data. So this is my AS3 code for socket data handle.</p> <pre><code>private function packetHandler( e:ProgressEvent ):void { while( m_socket.bytesAvailable &amp;&amp; m_socket.bytesAvailable &gt;= pLen ) { //pLen means the packet length //pLen init is zero if( pLen == 0 ) { //PACKET_LEN stands for the solid length of one packet //PACKET_LEN = HEAD_LEN + 4 //the 4 means an unsigned int which means the packet content length if( m_socket.bytesAvailable &gt; PACKET_LEN ) { m_socket.readBytes( headByteBuffer, 0, HEAD_LEN ); headByteBuffer.clear(); pLen = m_socket.readUnsignedInt() + 4; } else { break; } } //recieved a whole packet now handle it else { var newPacket:ByteArray = new ByteArray(); newPacket.endian = Endian.LITTLE_ENDIAN; m_socket.readBytes( newPacket, 0, pLen ); parasMsg( newPacket, pLen-4 ); pLen = 0; } } } </code></pre> <p><strong>A whole packet can be described in this picture:</strong> <img src="https://i.stack.imgur.com/sOEmN.gif" alt="http://wuzhiwei.net/problems/packet.gif"></p> <p><strong>My Problem is: When there has one incomplete packet received in Flash and triggered the handle. But the left part of the packet will never trigger the handle and it seems like that the left part of the packet has lost!!!</strong></p> <p>I used a capture tool, find that the tcp packet is ok, but why the left part doesn't trigger the event again?</p> <p>You can get more debug information below. Thank you!</p> <p><strong>This is my log:</strong></p> <ul> <li>byteava means bytesAvailable of m_socket</li> </ul> <blockquote> <p>==>sendPacket: {"rangeID":"1","uid":"145962","serviceType":"copyscene","cmd":"CopySceneMoveAsk","pathPoint":[{"col":7,"row":6},{"col":7,"row":5},{"col":7,"row":4},{"col":7,"row":3},{"col":6,"row":3}],"sn":"79","smallPathPoint":[[22,19],[22,18],[22,17],[22,16],[22,15],[22,14],[22,13],[21,13],[21,12],[21,11],[20,11],[20,10]]}, bytesLoaded = 463</p> <p>ProgressEvent Triggered!0 socket byteava = 373 evt loaded:373 evt total:0 evt:[ProgressEvent type="socketData" bubbles=false cancelable=false eventPhase=2 bytesLoaded=373 bytesTotal=0]</p> <p>Find a packet from socket, pLen=288 socket byteava = 276</p> <p>ProgressEvent Triggered!288 socket byteava = 441 evt loaded:165 evt total:0 evt:[ProgressEvent type="socketData" bubbles=false cancelable=false eventPhase=2 bytesLoaded=165 bytesTotal=0]</p> <p>Start to Read a packet to buffer, pLen=288 socket byteava = 441</p> <p>whole packet content: Readed a packet to buffer, pLen=288 socket byteava = 153</p> <p>Server packet content byte buffer ava:288 len：288 pos: 0</p> <p>Server Paras Data : data len: 284 data content: {"cmd":"CopySceneMoveNotify","gtcmd":"108","layer":"1","pathPoint":[{"col":7,"row":6},{"col":7,"row":5},{"col":7,"row":4},{"col":7,"row":3},{"col":6,"row":3}],"smallPathPoint":[[22,19],[22,18],[22,17],[22,16],[22,15],[22,14],[22,13],[21,13],[21,12],[21,11],[20,11],[20,10]HTTP/1.1 200</p> </blockquote> <p><strong><code>_[20,10]HTTP/1.1 200_</code> This is what went wrong!! The incomplete packet cat with another packet's header.</strong></p> <p><strong>Here is the capture of the TCP connections:</strong> <img src="https://i.stack.imgur.com/VoV9b.jpg" alt="http://wuzhiwei.net/problems/captured_packets.jpg"></p> <p>Hope you can <strong>vote it up</strong> so that I can put my pictures of this question on!</p> <p>My English is not very good, hope you can understand what I mean. Thank you!</p>
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    1. COWhy the type of e is ProgressEvent?
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    2. COProgressEvent.SOCKET_DATA
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    3. COI'm almost sure that the problem is in packetHandler and especially in while usage. My games are server/client and communication is via socket and never have a problem like this. Also I'm almost if you change m_socket.readBytes( newPacket, 0, pLen ); to m_socket.readBytes( newPacket, 0, m_socket.bytesAvailable ); you will get the message without HTTP/1.1 200_
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