RtspTcpBuffer.hxx
上传用户:sy_wanhua
上传日期:2013-07-25
资源大小:3048k
文件大小:5k
- #ifndef RtspTcpBuffer_Hxx
- #define RtspTcpBuffer_Hxx
- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF 281421,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const RtspTcpBuffer_hxx_Version =
- "$Id: RtspTcpBuffer.hxx,v 1.16 2001/05/16 00:49:32 kle Exp $";
- #include "RtspBadDataException.hxx"
- #include "vtypes.h"
- #include "Sptr.hxx"
- #include "Fifo.h"
- #include "Connection.hxx"
- #include "VNetworkException.hxx"
- class RtspMsg;
- /** RtspTcpBuffer
- Receives a message from a tcp connection, and adds the rtsp messages into
- into a shraed recvFifo.
- */
- class RtspTcpBuffer
- {
- public:
- /** Constructor
- * Process data on TCP connection
- * @param conn TCP socket connection
- * @param keepAliveCounter counter until self destruct
- * @param recvFifo fifo to insert new RTSP messages
- * @param bufferSize size of raw data buffer from socket
- */
- RtspTcpBuffer( Connection conn, int keepAliveCounter,
- Fifo< Sptr<RtspMsg> >& recvFifo, int bufferSize = 1024 );
- /** Deconstructor */
- virtual ~RtspTcpBuffer();
- /** accessor function */
- int getMapIndex() const { return myMapIndex; }
- /** accessor function */
- Connection getConnection() const { return myConnection; }
- /** accessor function */
- string getDescription() const { return myConnection.getDescription(); }
- /** process data from TCP connect and add new RTSP message into recvFifo
- * @return true if sucessful
- */
- bool processConnection( Sptr<RtspTcpBuffer> tcpBufferObj );
- /** closes the TCP connection */
- void closeConnection();
-
- /** true if this TCP connection has been active */
- bool isAlive();
- private:
- /** read TCP data into myCharBuf[0, bufferSize-1]
- * adds new RTSP message to fifo if one is complete;
- * If it's not, save it in myRtspMsg and wait for future data to
- * make it complete
- */
- bool readTcpData( Sptr<RtspTcpBuffer> tcpBufferObj )
- throw( VNetworkException&, RtspBadDataException& );
- /** map index this object is stored under */
- int myMapIndex;
- /** TCP socket connection */
- Connection myConnection;
- /** max keepa alive counter */
- int myMaxKeepAliveCounter;
- /** keep alive counter */
- int myKeepAliveCounter;
- /** receiving char buffer */
- char* myCharBuf;
- /** size of receiving char buffer */
- int myBufferSize;
- /** hold the incomplete msg */
- Sptr<RtspMsg> mySavedRtspMsg;
- /** recv fifo from RtspTransceiver */
- Fifo< Sptr<RtspMsg> >& myRecvFifo;
- protected:
- /** suppress copy constructor */
- RtspTcpBuffer( const RtspTcpBuffer& );
- /** suppress assignment operator */
- RtspTcpBuffer& operator=( const RtspTcpBuffer& );
- };
- /* Local Variables: */
- /* c-file-style: "stroustrup" */
- /* indent-tabs-mode: nil */
- /* c-file-offsets: ((access-label . -) (inclass . ++)) */
- /* c-basic-offset: 4 */
- /* End: */
- #endif