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#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "thread.h"
using namespace std;
bool Thread::TestBreak()
{
bool result=false;
cond1.ObtainMutex();
if(state==THREAD_CANCELLED)
result=true;
cond1.ReleaseMutex();
return(result);
}
void *Thread::LaunchStub(void *ud)
{
Thread *t=(Thread *)ud;
t->subthreadid=GetThreadID();
t->threadmutex.ObtainMutex();
t->cond1.ObtainMutex();
t->state=THREAD_RUNNING;
t->cond1.ReleaseMutex();
if(t->threadfunc)
t->returncode=t->threadfunc->Entry(*t);
t->cond1.ObtainMutex();
t->state=THREAD_FINISHED;
t->cond1.ReleaseMutex();
t->threadmutex.ReleaseMutex();
return(NULL);
}
void Thread::Start()
{
returncode=0;
state=THREAD_STARTED;
pthread_create(&thread,0,LaunchStub,this);
}
void Thread::Stop()
{
cond1.ObtainMutex();
state=THREAD_CANCELLED;
cond1.ReleaseMutex();
// pthread_join(thread,&discarded);
// state=THREAD_IDLE;
}
void Thread::SendSync()
{
if(GetThreadID()==subthreadid)
cond2.Broadcast();
else
cond1.Broadcast();
}
void Thread::WaitSync()
{
if(GetThreadID()==subthreadid)
cond1.WaitCondition();
else
cond2.WaitCondition();
}
int Thread::WaitFinished()
{
void *discarded=NULL;
pthread_join(thread,&discarded);
state=THREAD_IDLE;
return(returncode);
}
int Thread::GetReturnCode()
{
return(returncode);
}
bool Thread::TestFinished()
{
bool result=threadmutex.AttemptMutex();
if(result)
{
if(state!=THREAD_IDLE)
{
void *discarded;
pthread_join(thread,&discarded);
state=THREAD_IDLE;
}
threadmutex.ReleaseMutex();
}
return(result);
}
Thread::~Thread()
{
if(!TestFinished())
WaitFinished();
}
ThreadID Thread::GetThreadID()
{
#ifdef WIN32
return(pthread_self().p);
#else
return(pthread_self());
#endif
}
Thread::Thread(ThreadFunction *threadfunc)
: threadfunc(threadfunc)
{
pthread_attr_init(&attr);
}
ThreadCondition::ThreadCondition() : PTMutex()
{
pthread_cond_init(&cond,0);
}
ThreadCondition::~ThreadCondition()
{
pthread_cond_destroy(&cond);
}
void ThreadCondition::Broadcast()
{
pthread_cond_broadcast(&cond);
}
void ThreadCondition::WaitCondition()
{
pthread_cond_wait(&cond,&mutex);
}
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