111 lines
2.2 KiB
C++
111 lines
2.2 KiB
C++
//
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// ZoneMinder Timer Class Interface, $Date$, $Revision$
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// Copyright (C) 2001-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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#ifndef ZM_TIMER_H
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#define ZM_TIMER_H
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#ifdef HAVE_SYS_SYSCALL_H
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#include <sys/syscall.h>
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#endif // HAVE_SYS_SYSCALL_H
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#include "zm_thread.h"
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#include "zm_exception.h"
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class Timer
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{
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private:
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class TimerException : public Exception
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{
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private:
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#ifndef SOLARIS
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pid_t pid() {
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pid_t tid;
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#ifdef __FreeBSD__
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long lwpid;
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thr_self(&lwpid);
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tid = lwpid;
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#else
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#ifdef __FreeBSD_kernel__
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if ( (syscall(SYS_thr_self, &tid)) < 0 ) // Thread/Process id
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#else
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tid=syscall(SYS_gettid);
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#endif
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#endif
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return tid;
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}
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#else
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pthread_t pid() { return( pthread_self() ); }
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#endif
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public:
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TimerException( const std::string &message ) : Exception( stringtf( "(%d) "+message, (long int)pid() ) )
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{
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}
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};
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class TimerThread : public Thread
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{
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private:
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typedef ThreadData<bool> ExpiryFlag;
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private:
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static int mNextTimerId;
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private:
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int mTimerId;
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Timer &mTimer;
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int mDuration;
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int mRepeat;
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int mReset;
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ExpiryFlag mExpiryFlag;
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Mutex mAccessMutex;
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private:
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void quit()
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{
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cancel();
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}
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public:
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TimerThread( Timer &timer, int timeout, bool repeat );
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~TimerThread();
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void cancel();
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void reset();
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int run();
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};
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protected:
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TimerThread mTimerThread;
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protected:
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Timer( int timeout, bool repeat=false );
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public:
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virtual ~Timer();
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protected:
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virtual void expire()=0;
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public:
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void cancel();
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void reset();
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};
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#endif // ZM_TIMER_H
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