?? ptrigger.cxx
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/* * * C++ Portable Types Library (PTypes) * Version 1.7.5 Released 9-Mar-2003 * * Copyright (c) 2001, 2002, 2003 Hovik Melikyan * * http://www.melikyan.com/ptypes/ * http://ptypes.sourceforge.net/ * */#ifdef WIN32# include <windows.h>#else# include <sys/time.h># include <pthread.h># include <errno.h>#endif#include "pasync.h"PTYPES_BEGINstatic void trig_fail(){ fatal(CRIT_FIRST + 41, "Trigger failed");}#ifdef WIN32trigger::trigger(bool autoreset, bool state){ handle = CreateEvent(0, !autoreset, state, 0); if (handle == 0) trig_fail();}#elseinline void syscheck(int r){ if (r != 0) trig_fail();}trigger::trigger(bool iautoreset, bool istate) : state(int(istate)), autoreset(iautoreset){ syscheck(pthread_mutex_init(&mtx, 0)); syscheck(pthread_cond_init(&cond, 0));}trigger::~trigger(){ pthread_cond_destroy(&cond); pthread_mutex_destroy(&mtx);}void trigger::wait(){ pthread_mutex_lock(&mtx); if (state == 0) pthread_cond_wait(&cond, &mtx); if (autoreset) state = 0; pthread_mutex_unlock(&mtx);} void trigger::post(){ pthread_mutex_lock(&mtx); state = 1; if (autoreset) pthread_cond_signal(&cond); else pthread_cond_broadcast(&cond); pthread_mutex_unlock(&mtx);}void trigger::reset(){ state = 0;}#endifPTYPES_END
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