| // Copyright (C) 2000,2001,2004,2005,2006 Federico Montesino Pouzols <fedemp@altern.org> |
| // |
| // This program is free software; you can redistribute it and/or modify |
| // it under the terms of the GNU General Public License as published by |
| // the Free Software Foundation; either version 2 of the License, or |
| // (at your option) any later version. |
| // |
| // This program is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // |
| // You should have received a copy of the GNU General Public License |
| // along with this program; if not, write to the Free Software |
| // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| // |
| // As a special exception, you may use this file as part of a free software |
| // library without restriction. Specifically, if other files instantiate |
| // templates or use macros or inline functions from this file, or you compile |
| // this file and link it with other files to produce an executable, this |
| // file does not by itself cause the resulting executable to be covered by |
| // the GNU General Public License. This exception does not however |
| // invalidate any other reasons why the executable file might be covered by |
| // the GNU General Public License. |
| // |
| // This exception applies only to the code released under the name GNU |
| // ccRTP. If you copy code from other releases into a copy of GNU |
| // ccRTP, as the General Public License permits, the exception does |
| // not apply to the code that you add in this way. To avoid misleading |
| // anyone as to the status of such modified files, you must delete |
| // this exception notice from them. |
| // |
| // If you write modifications of your own for GNU ccRTP, it is your choice |
| // whether to permit this exception to apply to your modifications. |
| // If you do not wish that, delete this exception notice. |
| // |
| |
| #include "private.h" |
| #include <ccrtp/pool.h> |
| |
| #include <algorithm> |
| |
| NAMESPACE_COMMONCPP |
| using std::list; |
| |
| RTPSessionPool::RTPSessionPool() |
| { |
| #ifndef _MSWINDOWS_ |
| highestSocket = 0; |
| setPoolTimeout(0,3000); |
| FD_ZERO(&recvSocketSet); |
| #endif |
| } |
| |
| bool |
| RTPSessionPool::addSession(RTPSessionBase& session) |
| { |
| #ifndef _MSWINDOWS_ |
| bool result = false; |
| poolLock.writeLock(); |
| // insert in list. |
| PredEquals predEquals(&session); |
| if ( sessionList.end() == std::find_if(sessionList.begin(),sessionList.end(),predEquals) ) { |
| result = true; |
| sessionList.push_back(new SessionListElement(&session)); |
| } else { |
| result = false; |
| } |
| poolLock.unlock(); |
| return result; |
| #else |
| return false; |
| #endif |
| } |
| |
| bool |
| RTPSessionPool::removeSession(RTPSessionBase& session) |
| { |
| #ifndef _MSWINDOWS_ |
| bool result = false; |
| poolLock.writeLock(); |
| // remove from list. |
| PredEquals predEquals(&session); |
| PoolIterator i; |
| if ( sessionList.end() != (i = find_if(sessionList.begin(),sessionList.end(),predEquals)) ) { |
| (*i)->clear(); |
| result = true; |
| } else { |
| result = false; |
| } |
| poolLock.unlock(); |
| return result; |
| #else |
| return false; |
| #endif |
| } |
| |
| size_t |
| RTPSessionPool::getPoolLength() const |
| { |
| #ifndef _MSWINDOWS_ |
| size_t result; |
| poolLock.readLock(); |
| result = sessionList.size(); |
| poolLock.unlock(); |
| return result; |
| #else |
| return 0; |
| #endif |
| } |
| |
| void |
| SingleRTPSessionPool::run() |
| { |
| #ifndef _MSWINDOWS_ |
| SOCKET so; |
| microtimeout_t packetTimeout(0); |
| while ( isActive() ) { |
| poolLock.readLock(); |
| // Make a copy of the list so that add and remove does |
| // not affect the list during this loop iteration |
| list<SessionListElement*> sessions(sessionList); |
| poolLock.unlock(); |
| |
| PoolIterator i = sessions.begin(); |
| while ( i != sessions.end() ) { |
| poolLock.readLock(); |
| if (!(*i)->isCleared()) { |
| RTPSessionBase* session((*i)->get()); |
| controlReceptionService(*session); |
| controlTransmissionService(*session); |
| } |
| poolLock.unlock(); |
| i++; |
| } |
| timeval timeout = getPoolTimeout(); |
| |
| // Reinitializa fd set |
| FD_ZERO(&recvSocketSet); |
| poolLock.readLock(); |
| highestSocket = 0; |
| for (PoolIterator j = sessions.begin(); j != sessions.end (); j++) { |
| if (!(*j)->isCleared()) { |
| RTPSessionBase* session((*j)->get()); |
| SOCKET s = getDataRecvSocket(*session); |
| FD_SET(s,&recvSocketSet); |
| if ( s > highestSocket + 1 ) |
| highestSocket = s + 1; |
| } |
| } |
| poolLock.unlock(); |
| |
| |
| int n = select(highestSocket,&recvSocketSet,NULL,NULL, |
| &timeout); |
| |
| i = sessions.begin(); |
| while ( (i != sessions.end()) ) { |
| poolLock.readLock(); |
| if (!(*i)->isCleared()) { |
| RTPSessionBase* session((*i)->get()); |
| so = getDataRecvSocket(*session); |
| if ( FD_ISSET(so,&recvSocketSet) && (n-- > 0) ) { |
| takeInDataPacket(*session); |
| } |
| |
| // schedule by timestamp, as in |
| // SingleThreadRTPSession (by Joergen |
| // Terner) |
| if (packetTimeout < 1000) { |
| packetTimeout = getSchedulingTimeout(*session); |
| } |
| microtimeout_t maxWait = |
| timeval2microtimeout(getRTCPCheckInterval(*session)); |
| // make sure the scheduling timeout is |
| // <= the check interval for RTCP |
| // packets |
| packetTimeout = (packetTimeout > maxWait)? maxWait : packetTimeout; |
| if ( packetTimeout < 1000 ) { // !(packetTimeout/1000) |
| dispatchDataPacket(*session); |
| //timerTick(); |
| } else { |
| packetTimeout = 0; |
| } |
| } |
| poolLock.unlock(); |
| i++; |
| } |
| |
| // Purge elements for removed sessions. |
| poolLock.writeLock(); |
| i = sessionList.begin(); |
| while (i != sessionList.end()) { |
| if ((*i)->isCleared()) { |
| SessionListElement* element(*i); |
| i = sessionList.erase(i); |
| delete element; |
| } |
| else { |
| ++i; |
| } |
| } |
| poolLock.unlock(); |
| |
| //GF we added that to allow the kernel scheduler to |
| // give other tasks some time as if we have lots of |
| // active sessions the thread cann take all the CPU if we |
| // don't pause at all. We haven't found the best way to |
| // do that yet. |
| // usleep (10); |
| yield(); |
| } |
| #endif // ndef WIN32 |
| } |
| |
| #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| SingleThreadRTPSession<DualRTPUDPIPv4Channel,DualRTPUDPIPv4Channel,AVPQueue>::SingleThreadRTPSession<DualRTPUDPIPv4Channel,DualRTPUDPIPv4Channel,AVPQueue>( |
| const InetHostAddress& ia, tpport_t dataPort, tpport_t controlPort, int pri, |
| uint32 memberssize, RTPApplication& app) : |
| Thread(pri), TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue> |
| (ia,dataPort,controlPort,memberssize,app) |
| {} |
| |
| SingleThreadRTPSession<DualRTPUDPIPv4Channel,DualRTPUDPIPv4Channel,AVPQueue>::SingleThreadRTPSession<DualRTPUDPIPv4Channel,DualRTPUDPIPv4Channel,AVPQueue>( |
| const InetMcastAddress& ia, tpport_t dataPort, tpport_t controlPort, int pri, |
| uint32 memberssize, RTPApplication& app, uint32 iface) : |
| Thread(pri), TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue> |
| (ia,dataPort,controlPort,memberssize,app,iface) |
| {} |
| |
| void SingleThreadRTPSession<DualRTPUDPIPv4Channel,DualRTPUDPIPv4Channel,AVPQueue>::startRunning() |
| { |
| enableStack(); |
| Thread::start(); |
| } |
| |
| bool SingleThreadRTPSession<DualRTPUDPIPv4Channel,DualRTPUDPIPv4Channel,AVPQueue>::isPendingData(microtimeout_t timeout) |
| { |
| return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::isPendingData(timeout); |
| } |
| |
| void SingleThreadRTPSession<DualRTPUDPIPv4Channel,DualRTPUDPIPv4Channel,AVPQueue>::timerTick(void) |
| {} |
| |
| void SingleThreadRTPSession<DualRTPUDPIPv4Channel,DualRTPUDPIPv4Channel,AVPQueue>::run(void) |
| { |
| microtimeout_t timeout = 0; |
| while ( ServiceQueue::isActive() ) { |
| if ( timeout < 1000 ){ // !(timeout/1000) |
| timeout = getSchedulingTimeout(); |
| } |
| controlReceptionService(); |
| controlTransmissionService(); |
| microtimeout_t maxWait = |
| timeval2microtimeout(getRTCPCheckInterval()); |
| // make sure the scheduling timeout is |
| // <= the check interval for RTCP |
| // packets |
| timeout = (timeout > maxWait)? maxWait : timeout; |
| if ( timeout < 1000 ) { // !(timeout/1000) |
| dispatchDataPacket(); |
| timerTick(); |
| } else { |
| if ( isPendingData(timeout/1000) ) { |
| takeInDataPacket(); |
| } |
| timeout = 0; |
| } |
| } |
| dispatchBYE("GNU ccRTP stack finishing."); |
| Thread::exit(); |
| } |
| |
| |
| #ifdef CCXX_IPV6 |
| |
| SingleThreadRTPSessionIPV6<DualRTPUDPIPv6Channel,DualRTPUDPIPv6Channel,AVPQueue>::SingleThreadRTPSessionIPV6<DualRTPUDPIPv6Channel,DualRTPUDPIPv6Channel,AVPQueue>( |
| const IPV6Host& ia, tpport_t dataPort, tpport_t controlPort, int pri, |
| uint32 memberssize, RTPApplication& app) : |
| Thread(pri), TRTPSessionBaseIPV6<RTPDataChannel,RTCPChannel,ServiceQueue> |
| (ia,dataPort,controlPort,memberssize,app) |
| {} |
| |
| SingleThreadRTPSessionIPV6<DualRTPUDPIPv6Channel,DualRTPUDPIPv6Channel,AVPQueue>::SingleThreadRTPSessionIPV6<DualRTPUDPIPv6Channel,DualRTPUDPIPv6Channel,AVPQueue>( |
| const IPV6Multicast& ia, tpport_t dataPort, tpport_t controlPort, int pri, |
| uint32 memberssize, RTPApplication& app, uint32 iface) : |
| Thread(pri), TRTPSessionBaseIPV6<RTPDataChannel,RTCPChannel,ServiceQueue> |
| (ia,dataPort,controlPort,memberssize,app,iface) |
| {} |
| |
| void SingleThreadRTPSessionIPV6<DualRTPUDPIPv6Channel,DualRTPUDPIPv6Channel,AVPQueue>::startRunning() |
| { |
| enableStack(); |
| Thread::start(); |
| } |
| |
| bool SingleThreadRTPSessionIPV6<DualRTPUDPIPv6Channel,DualRTPUDPIPv6Channel,AVPQueue>::isPendingData(microtimeout_t timeout) |
| { |
| return TRTPSessionBaseIPV6<RTPDataChannel,RTCPChannel,ServiceQueue>::isPendingData(timeout); |
| } |
| |
| void SingleThreadRTPSessionIPV6<DualRTPUDPIPv6Channel,DualRTPUDPIPv6Channel,AVPQueue>::timerTick(void) |
| {} |
| |
| void SingleThreadRTPSessionIPV6<DualRTPUDPIPv6Channel,DualRTPUDPIPv6Channel,AVPQueue>::run(void) |
| { |
| microtimeout_t timeout = 0; |
| while ( ServiceQueue::isActive() ) { |
| if ( timeout < 1000 ){ // !(timeout/1000) |
| timeout = getSchedulingTimeout(); |
| } |
| controlReceptionService(); |
| controlTransmissionService(); |
| microtimeout_t maxWait = |
| timeval2microtimeout(getRTCPCheckInterval()); |
| // make sure the scheduling timeout is |
| // <= the check interval for RTCP |
| // packets |
| timeout = (timeout > maxWait)? maxWait : timeout; |
| if ( timeout < 1000 ) { // !(timeout/1000) |
| dispatchDataPacket(); |
| timerTick(); |
| } else { |
| if ( isPendingData(timeout/1000) ) { |
| takeInDataPacket(); |
| } |
| timeout = 0; |
| } |
| } |
| dispatchBYE("GNU ccRTP stack finishing."); |
| Thread::exit(); |
| } |
| |
| |
| #endif |
| |
| |
| #endif |
| |
| END_NAMESPACE |
| |
| /** EMACS ** |
| * Local variables: |
| * mode: c++ |
| * c-basic-offset: 4 |
| * End: |
| */ |