/*
   Header file for binary_sems.c.
*/
#ifndef BINARY_SEMS_H           /* Prevent accidental double inclusion */
#define BINARY_SEMS_H

typedef enum { FALSE, TRUE } Boolean;


/* Variables controlling operation of functions below */

extern Boolean bsUseSemUndo;            /* Use SEM_UNDO during semop()? */
extern Boolean bsRetryOnEintr;          /* Retry if semop() interrupted by
                                           signal handler? */

int initSemAvailable(int semId, int semNum);

int initSemInUse(int semId, int semNum);

int reserveSem(int semId, int semNum);

int releaseSem(int semId, int semNum);

#endif