sem.h

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#ifndef STASIS_SEMAPHORE_H
#define STASIS_SEMAPHORE_H
 
#include "core.h"
#include <semaphore.h>
#if defined(STASIS_OS_DARWIN)
// Darwin's sem_open() limits the path length to PSEMNAMLEN
// even though it isn't used directly.
#include <sys/posix_sem.h>  // PSEMNAMLEN
#endif
 
struct Semaphore {
    sem_t *sem;
    char name[STASIS_NAME_MAX];
};

int semaphore_init(struct Semaphore *s, const char *name, int value);
int semaphore_wait(struct Semaphore *s);
int semaphore_post(struct Semaphore *s);
void semaphore_destroy(struct Semaphore *s);
 
#endif //STASIS_SEMAPHORE_H