POK
/home/jaouen/pok_official/pok/trunk/libpok/core/semcreate.c
00001 /*
00002  *                               POK header
00003  * 
00004  * The following file is a part of the POK project. Any modification should
00005  * made according to the POK licence. You CANNOT use this file or a part of
00006  * this file is this part of a file for your own project
00007  *
00008  * For more information on the POK licence, please see our LICENCE FILE
00009  *
00010  * Please follow the coding guidelines described in doc/CODING_GUIDELINES
00011  *
00012  *                                      Copyright (c) 2007-2009 POK team 
00013  *
00014  * Created by julien on Thu Jan 15 23:34:13 2009 
00015  */
00016 
00017 #include <core/dependencies.h>
00018 
00019 #ifdef POK_NEEDS_SEMAPHORES
00020 #include <types.h>
00021 #include <errno.h>
00022 #include <core/semaphore.h>
00023 #include <core/lockobj.h>
00024 #include <core/syscall.h>
00025 
00026 pok_ret_t pok_sem_create (pok_sem_id_t*                        id,
00027                           const pok_sem_value_t                current_value,
00028                           const pok_sem_value_t                max_value,
00029                           const pok_queueing_discipline_t      discipline)
00030 {
00031    pok_lockobj_attr_t lockattr;
00032    lockattr.initial_value     = current_value;
00033    lockattr.max_value         = max_value;
00034    lockattr.queueing_policy   = discipline;
00035    lockattr.kind              = POK_LOCKOBJ_KIND_SEMAPHORE;
00036 
00037    return pok_syscall2 (POK_SYSCALL_LOCKOBJ_CREATE, (uint32_t)id, (uint32_t)&lockattr);
00038 }
00039 
00040 #endif