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/*
* -------------------------------------------------------------
*
* $Header: /cvs/pthreads-win32/pthreads/semaphore.h,v 1.1.2.1 1998/12/28 23:01:15 rpj Exp $
*
* Module: semaphore.h
*
* Purpose:
* Semaphores aren't actually part of the PThreads standard.
* They are defined by the POSIX Standard:
*
* POSIX 1003.1b-1993 (POSIX.1b)
*
* They are supposed to follow the older UNIX convention for
* reporting errors. That is, on failure they are supposed
* to return a value of -1 and store the appropriate error
* number into 'errno'.
* HOWEVER,errno cannot be modified in a multithreaded
* program on WIN32; therefore, the value is returned as
* the function value.
* It is recommended that you compare for zero (0) for success
* instead of -1 for failure when checking the status of
* these functions.
*
* Disclaimer:
* This software is provided "as is".
*
* The author makes no warranty or representation, either
* express or implied, with respect to this software, its
* quality, performance, merchantability, or fitness for a
* particular purpose. In no event will the author be
* liable for direct, indirect, special, incidental, or
* consequential damages arising out of the use or inability
* to use the software.
*
* -------------------------------------------------------------
*/
#if !defined( SEMAPHORE_H )
#define SEMAPHORE_H
#include <process.h>
#include <errno.h>
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
typedef HANDLE sem_t;
int sem_init (sem_t * sem, int pshared, unsigned int value);
int sem_destroy (sem_t * sem);
int sem_trywait (sem_t * sem);
int sem_wait (sem_t * sem);
int sem_post (sem_t * sem);
#ifdef __cplusplus
} /* End of extern "C" */
#endif /* __cplusplus */
#endif /* !SEMAPHORE_H */
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