semaphores.h

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/* {{{ Initial headers */
/*
 * $LastChangedDate: 2003-11-27 01:55:17 +0100 (Thu, 27 Nov 2003) $
 * $LastChangedRevision: 5 $
 * $LastChangedBy: ckruse $
 *
 */
/* }}} */

#ifndef _CF_SEMAPHORE_H
#define _CF_SEMAPHORE_H

#ifdef _SEM_SEMUN_UNDEFINED
union semun {
  int val;
  struct semid_ds *buf;
  unsigned short int *array;
  struct seminfo *__buf;
};
#endif

#define CF_SEM_LOCK(id,sem) (cf_sem_pv(id,-1,sem))

#define CF_SEM_DOWN(id,sem) (cf_sem_pv(id,-1,sem))

#define CF_SEM_UNLOCK(id,sem) (cf_sem_pv(id,1,sem))

#define CF_SEM_UP(id,sem)     (cf_sem_pv(id,1,sem))

#define CF_SEM_WAITZERO(id,sem) (cf_sem_pv(id,0,sem))

int cf_sem_pv(int id,int operation,int semnum);

int cf_sem_getval(int id,int semnum,int num,unsigned short *val);

#endif

/* eof */

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