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#include <semaphore.h>


#ifndef _SIMPLEIPC_H

#define _SIMPLEIPC_H


#ifdef __cplusplus

extern "C"

{

#endif

#define SIPC_MAX_SEMAPHORES 512


#define USE_SEM_INIT 0


#ifdef __APPLE__

#define PORTABLE_SEMAPHORES 1

#endif


#if PORTABLE_SEMAPHORES


#include <sys/mman.h>


typedef struct {

  sem_t *guard, *sig;

  int count;

} sipc_sem_t;

#else

typedef sem_t sipc_sem_t;

#endif


EXTERN_VAR sipc_sem_t *semaphore[SIPC_MAX_SEMAPHORES];

EXTERN_VAR int sem_acquired[SIPC_MAX_SEMAPHORES];


int sipc_semaphore_init(int id, int count);

int sipc_semaphore_exists(int id);

int sipc_semaphore_acquire(int id);

int sipc_semaphore_try_acquire(int id);

int sipc_semaphore_get_value(int id);

int sipc_semaphore_release(int id);


int simpleipc_cmd(char *cmd, int id, int v);

#ifdef __cplusplus

}

#endif

#endif

v
const Variable & v
< [in] a sqrfree bivariate poly
Definition: facBivar.h:39

EXTERN_VAR
#define EXTERN_VAR
Definition: globaldefs.h:6

count
int status int void size_t count
Definition: si_signals.h:59

SIPC_MAX_SEMAPHORES
#define SIPC_MAX_SEMAPHORES
Definition: simpleipc.h:10

sipc_semaphore_get_value
int sipc_semaphore_get_value(int id)
Definition: semaphore.c:153

semaphore
EXTERN_VAR sipc_sem_t * semaphore[SIPC_MAX_SEMAPHORES]
Definition: simpleipc.h:31

sipc_sem_t
sem_t sipc_sem_t
Definition: simpleipc.h:27

sipc_semaphore_acquire
int sipc_semaphore_acquire(int id)
Definition: semaphore.c:94

sem_acquired
EXTERN_VAR int sem_acquired[SIPC_MAX_SEMAPHORES]
Definition: simpleipc.h:32

sipc_semaphore_release
int sipc_semaphore_release(int id)
Definition: semaphore.c:135

simpleipc_cmd
int simpleipc_cmd(char *cmd, int id, int v)
Definition: semaphore.c:167

sipc_semaphore_exists
int sipc_semaphore_exists(int id)
Definition: semaphore.c:88

sipc_semaphore_try_acquire
int sipc_semaphore_try_acquire(int id)
Definition: semaphore.c:112

sipc_semaphore_init
int sipc_semaphore_init(int id, int count)
Definition: semaphore.c:31