#ifndef THREADS_PTHREADS_H
#define THREADS_PTHREADS_H

#include "Threads.h"

#include <pthread.h>
#include <semaphore.h>

class ThreadImpl_Pthreads: public ThreadImpl
{
public:
	pthread_t thread;

	/* Linux:
	 * Keep a list of child PIDs, so we can send them SIGKILL.  This has an
	 * added bonus: if this is corrupted, we'll just send signals and they'll
	 * fail; we won't blow up (unless we're root).
	 */
	uint64_t threadHandle;

	/* These are only used during initialization. */
	int (*m_pFunc)( void *pData );
	void *m_pData;
	uint64_t *m_piThreadID;
	SemaImpl *m_StartFinishedSem;

	void Halt( bool Kill );
	void Resume();
	uint64_t GetThreadId() const;
	int Wait();
};

class MutexImpl_Pthreads: public MutexImpl
{
	friend class EventImpl_Pthreads;

public:
	MutexImpl_Pthreads( RageMutex *parent );
	~MutexImpl_Pthreads();

	bool Lock();
	bool TryLock();
	void Unlock();

protected:
	pthread_mutex_t mutex;
};

class EventImpl_Pthreads: public EventImpl
{
public:
	EventImpl_Pthreads( MutexImpl_Pthreads *pParent );
	~EventImpl_Pthreads();

	bool Wait( RageTimer *pTimeout );
	void Signal();
	void Broadcast();

private:
	MutexImpl_Pthreads *m_pParent;
	pthread_cond_t m_Cond;
};

#if 0
class SemaImpl_Pthreads: public SemaImpl
{
public:
	SemaImpl_Pthreads( int iInitialValue );
	~SemaImpl_Pthreads();
	int GetValue() const;
	void Post();
	bool Wait();
	bool TryWait();

private:
	sem_t sem;
};
#else
class SemaImpl_Pthreads: public SemaImpl
{
public:
	SemaImpl_Pthreads( int iInitialValue );
	~SemaImpl_Pthreads();
	int GetValue() const { return m_iValue; }
	void Post();
	bool Wait();
	bool TryWait();

private:
	pthread_cond_t m_Cond;
	pthread_mutex_t m_Mutex;
	unsigned m_iValue;
};

#endif

#endif

/*
 * (c) 2001-2004 Glenn Maynard
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, and/or sell copies of the Software, and to permit persons to
 * whom the Software is furnished to do so, provided that the above
 * copyright notice(s) and this permission notice appear in all copies of
 * the Software and that both the above copyright notice(s) and this
 * permission notice appear in supporting documentation.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
 * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
 * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
 * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */