POK
mutextrylock.c
1 /*
2  * POK header
3  *
4  * The following file is a part of the POK project. Any modification should
5  * made according to the POK licence. You CANNOT use this file or a part of
6  * this file is this part of a file for your own project
7  *
8  * For more information on the POK licence, please see our LICENCE FILE
9  *
10  * Please follow the coding guidelines described in doc/CODING_GUIDELINES
11  *
12  * Copyright (c) 2007-2009 POK team
13  *
14  * Created by julien on Thu Jan 15 23:34:13 2009
15  */
16 
17 
18 #ifdef POK_NEEDS_MUTEXES
19 #include <types.h>
20 #include <errno.h>
21 #include <core/time.h>
22 #include <core/lockobj.h>
23 #include <core/mutex.h>
24 #include <core/syscall.h>
25 
26 pok_ret_t pok_mutex_trylock (const pok_mutex_id_t id, const uint64_t time)
27 {
28  pok_lockobj_lockattr_t lockattr;
29  lockattr.operation = LOCKOBJ_OPERATION_LOCK;
30 
31  if (time > 0)
32  {
33  pok_time_get (&lockattr.time);
34  lockattr.time += time;
35  }
36 
37  lockattr.obj_kind = POK_LOCKOBJ_KIND_MUTEX;
38  return (pok_syscall2 (POK_SYSCALL_LOCKOBJ_OPERATION, (uint32_t)id, (uint32_t)&lockattr));
39 }
40 
41 #endif