/*
  * 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)
  *
  * --------------------------------------------------------------------------
  *
  *      Pthreads-win32 - POSIX Threads Library for Win32
  *      Copyright(C) 1998 John E. Bossom
  *      Copyright(C) 1999,2005 Pthreads-win32 contributors
  * 
  *      Contact Email: rpj@callisto.canberra.edu.au
  * 
  *      The current list of contributors is contained
  *      in the file CONTRIBUTORS included with the source
  *      code distribution. The list can also be seen at the
  *      following World Wide Web location:
  *      http://sources.redhat.com/pthreads-win32/contributors.html
  * 
  *      This library is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU Lesser General Public
  *      License as published by the Free Software Foundation; either
  *      version 2 of the License, or (at your option) any later version.
  * 
  *      This library is distributed in the hope that it will be useful,
  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *      Lesser General Public License for more details.
  * 
  *      You should have received a copy of the GNU Lesser General Public
  *      License along with this library in the file COPYING.LIB;
  *      if not, write to the Free Software Foundation, Inc.,
  *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined( SEMAPHORE_H )
 #define SEMAPHORE_H
 
 #undef PTW32_LEVEL
 
 #if defined(_POSIX_SOURCE)
 #define PTW32_LEVEL 0
 /* Early POSIX */
 #endif
 
 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309
 #undef PTW32_LEVEL
 #define PTW32_LEVEL 1
 /* Include 1b, 1c and 1d */
 #endif
 
 #if defined(INCLUDE_NP)
 #undef PTW32_LEVEL
 #define PTW32_LEVEL 2
 /* Include Non-Portable extensions */
 #endif
 
 #define PTW32_LEVEL_MAX 3
 
 #if !defined(PTW32_LEVEL)
 #define PTW32_LEVEL PTW32_LEVEL_MAX
 /* Include everything */
 #endif
 
 #if __GNUC__ && ! defined (__declspec)
 # error Please upgrade your GNU compiler to one that supports __declspec.
 #endif
 
 /*
  * When building the DLL code, you should define PTW32_BUILD so that
  * the variables/functions are exported correctly. When using the DLL,
  * do NOT define PTW32_BUILD, and then the variables/functions will
  * be imported correctly.
  */
 #ifndef PTW32_STATIC_LIB
 #  ifdef PTW32_BUILD
 #    define PTW32_DLLPORT __declspec (dllexport)
 #  else
 #    define PTW32_DLLPORT __declspec (dllimport)
 #  endif
 #else
 #  define PTW32_DLLPORT
 #endif
 
 /*
  * This is a duplicate of what is in the autoconf config.h,
  * which is only used when building the pthread-win32 libraries.
  */
 
 #ifndef PTW32_CONFIG_H
 #  if defined(WINCE)
 #    define NEED_ERRNO
 #    define NEED_SEM
 #  endif
 #  if defined(_UWIN) || defined(__MINGW32__)
 #    define HAVE_MODE_T
 #  endif
 #endif
 
 /*
  *
  */
 
 #if PTW32_LEVEL >= PTW32_LEVEL_MAX
 #ifdef NEED_ERRNO
 #include "need_errno.h"
 #else
 #include <errno.h>
 #endif
 #endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
 
 #define _POSIX_SEMAPHORES
 
 #ifdef __cplusplus
 extern "C"
 {
 #endif				/* __cplusplus */
 
 #ifndef HAVE_MODE_T
 typedef unsigned int mode_t;
 #endif
 
 
 typedef struct sem_t_ * sem_t;
 
 PTW32_DLLPORT int __cdecl sem_init (sem_t * sem,
 			    int pshared,
 			    unsigned int value);
 
 PTW32_DLLPORT int __cdecl sem_destroy (sem_t * sem);
 
 PTW32_DLLPORT int __cdecl sem_trywait (sem_t * sem);
 
 PTW32_DLLPORT int __cdecl sem_wait (sem_t * sem);
 
 PTW32_DLLPORT int __cdecl sem_timedwait (sem_t * sem,
 				 const struct timespec * abstime);
 
 PTW32_DLLPORT int __cdecl sem_post (sem_t * sem);
 
 PTW32_DLLPORT int __cdecl sem_post_multiple (sem_t * sem,
 				     int count);
 
 PTW32_DLLPORT int __cdecl sem_open (const char * name,
 			    int oflag,
 			    mode_t mode,
 			    unsigned int value);
 
 PTW32_DLLPORT int __cdecl sem_close (sem_t * sem);
 
 PTW32_DLLPORT int __cdecl sem_unlink (const char * name);
 
 PTW32_DLLPORT int __cdecl sem_getvalue (sem_t * sem,
 				int * sval);
 
 #ifdef __cplusplus
 }				/* End of extern "C" */
 #endif				/* __cplusplus */
 
 #undef PTW32_LEVEL
 #undef PTW32_LEVEL_MAX
 
 #endif				/* !SEMAPHORE_H */