RtspSessionManager.hxx
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上传日期:2013-07-25
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文件大小:5k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
C/C++
- #ifndef RtspSessionManager_hxx
- #define RtspSessionManager_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 RtspSessionManager_hxx_version =
- "$Id: RtspSessionManager.hxx,v 1.12 2001/05/15 20:26:08 bko Exp $";
- #include "RtspSession.hxx"
- #include "Sptr.hxx"
- #include "Random.hxx"
- #include <map>
- /** Mananges all the rtsp sessions for rtsp server.
- <ul>
- <li>add and delete sessions into manager
- <li>ensures unique sessionIds
- <li>enforces maximum number of sessions a server can handle
- </ul>
- */
- class RtspSessionManager
- {
- public:
- /** create a singelton object */
- static RtspSessionManager& instance();
- /** destructor */
- ~RtspSessionManager();
- /** frees the memory associated with singelton instance */
- static void destroy();
- /** sets the max number of sessions */
- bool maxSessions( const int max );
- /** returns the number of current sessions */
- int getSessions() const
- { return myRtspSessionMap.size(); }
- /** adds a new session into rtsp session map
- @return "" if failed to add session (ie server overloaded), else return its new sessionID
- */
- Data addRtspSession( Sptr<RtspSession> session );
- /** delete an existing session from rtsp session map
- @return false if session not found
- */
- bool delRtspSession( const Data& sessionId );
- /** return first session from rtsp session map
- @return 0 if none remaining
- */
- Sptr<RtspSession> getRtspSession();
- /** finds an existing session from rtsp session map
- @return 0 if not found
- */
- Sptr<RtspSession> getRtspSession( const Data& sessionId );
- private:
- /** constructor */
- RtspSessionManager();
- /** singelton object */
- static RtspSessionManager* myInstance;
- /** return a free session ID */
- Data findNewSessionId();
- /** max number of sessions */
- int myMaxSessions;
- /** RtspSession map type. Map indexed on sessionID and RTSP Session
- */
- typedef map< Data, Sptr<RtspSession> > RtspSessionMap;
- /** map of active RTSP sessions */
- RtspSessionMap myRtspSessionMap;
- /** */
- VMutex myRtspSessionMapMutex;
- /** for testing to generate predictable sessionIds */
- int mySessionIdList;
- /** generate random numbers */
- Random randomGen;
- protected:
- /** suppress copy constructor */
- RtspSessionManager( const RtspSessionManager& );
- /** suppress assignment operator */
- RtspSessionManager& operator=( const RtspSessionManager& );
- };
- /* Local Variables: */
- /* c-file-style: "stroustrup" */
- /* indent-tabs-mode: nil */
- /* c-file-offsets: ((access-label . -) (inclass . ++)) */
- /* c-basic-offset: 4 */
- /* End: */
- #endif