process_shared/ext/libpsem/psem.h

44 lines
820 B
C

#ifndef __PSEM_H__
#define __PSEM_H__
/**
* Portable semaphore interface focusing on cross-process use.
*/
#ifdef HAVE_SEM_OPEN
#include "psem_posix.h"
#endif
#include "psem_error.h"
typedef struct psem psem_t;
extern size_t sizeof_psem_t;
extern int OK;
extern int ERROR;
extern int E_SOURCE_SYSTEM;
extern int E_SOURCE_PSEM;
extern int E_NAME_TOO_LONG;
int psem_errno();
psem_t * psem_alloc();
void psem_free(psem_t *);
int psem_open(psem_t *, const char *, unsigned int, error_t **);
int psem_close(psem_t *, error_t **);
int psem_unlink(const char *, error_t **);
int psem_post(psem_t *, error_t **);
int psem_wait(psem_t *, error_t **);
int psem_trywait(psem_t *, error_t **);
int psem_timedwait(psem_t *, float, error_t **);
int psem_getvalue(psem_t *, int *, error_t **);
#endif /* __PSEM_H__ */