threadwrap.h

/* threadwrap.h */

/* Thread-related cross-platform development wrappers */

/* $Id$ */

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#ifndef _THREADWRAP_H
#define _THREADWRAP_H

#include "gen_defs.h"	/* HANDLE */
#include "wrapdll.h"	/* DLLEXPORT and DLLCALL */

#if defined(__cplusplus)
extern "C" {
#endif

#if defined(__unix__)

	#include <pthread.h>	/* POSIX threads and mutexes */
	#include <semaphore.h>	/* POSIX semaphores */
	ulong _beginthread(void( *start_address )( void * )
		,unsigned stack_size, void *arglist);

#elif defined(_WIN32)	

	#include <process.h>	/* _beginthread */
	#include <limits.h>		/* INT_MAX */

	/* POSIX semaphores */
	typedef HANDLE sem_t;
	#define sem_init(psem,ps,v)			*(psem)=CreateSemaphore(NULL,v,INT_MAX,NULL)
	#define sem_wait(psem)				WaitForSingleObject(*(psem),INFINITE)
	#define sem_post(psem)				ReleaseSemaphore(*(psem),1,NULL)
	#define sem_destroy(psem)			CloseHandle(*(psem))
	/* No Win32 implementation for sem_getvalue() */

	/* POSIX mutexes */
	typedef HANDLE pthread_mutex_t;
	#define PTHREAD_MUTEX_INITIALIZER	CreateMutex(NULL,FALSE,NULL)
	#define pthread_mutex_init(pmtx,v)	*(pmtx)=CreateMutex(NULL,FALSE,NULL)
	#define pthread_mutex_lock(pmtx)	WaitForSingleObject(*(pmtx),INFINITE)
	#define pthread_mutex_unlock(pmtx)	ReleaseMutex(*(pmtx))
	#define	pthread_mutex_destroy(pmtx)	CloseHandle(*(pmtx))

#else

	#error "Need semaphore wrappers."

#endif

#if defined(__cplusplus)
}
#endif

#endif	/* Don't add anything after this line */