semaphore.h

/*
 *                               POK header
 * 
 * The following file is a part of the POK project. Any modification should
 * made according to the POK licence. You CANNOT use this file or a part of
 * this file is this part of a file for your own project
 *
 * For more information on the POK licence, please see our LICENCE FILE
 *
 * Please follow the coding guidelines described in doc/CODING_GUIDELINES
 *
 *                                      Copyright (c) 2007-2009 POK team 
 *
 * Created by julien on Thu Jan 15 23:34:13 2009 
 */


#ifndef __POK_KERNEL_SEMAPHORE_H__
#define __POK_KERNEL_SEMAPHORE_H__

#include <core/dependencies.h>

#ifdef POK_NEEDS_SEMAPHORES

#include <types.h>
#include <errno.h>


#define POK_SEMAPHORE_DISCIPLINE_FIFO 1


pok_ret_t pok_sem_create (pok_sem_id_t*                        id,
                          const pok_sem_value_t                current_value,
                          const pok_sem_value_t                max_value,
                          const pok_queueing_discipline_t      discipline);

pok_ret_t pok_sem_wait (pok_sem_id_t       id,
                        uint64_t           timeout);

pok_ret_t pok_sem_signal (pok_sem_id_t     id);

pok_ret_t pok_sem_id (char*            name,
                      pok_sem_id_t*    id);

pok_ret_t pok_sem_status (pok_sem_id_t       id,
                          pok_sem_status_t*  status);


#endif

#endif