1062c5bc4SJason Schmidlapp /*
2062c5bc4SJason Schmidlapp * pthread_mutex_init.c
3062c5bc4SJason Schmidlapp *
4062c5bc4SJason Schmidlapp * Description:
5062c5bc4SJason Schmidlapp * This translation unit implements mutual exclusion (mutex) primitives.
6062c5bc4SJason Schmidlapp *
7062c5bc4SJason Schmidlapp * --------------------------------------------------------------------------
8062c5bc4SJason Schmidlapp *
9062c5bc4SJason Schmidlapp * Pthreads-embedded (PTE) - POSIX Threads Library for embedded systems
10062c5bc4SJason Schmidlapp * Copyright(C) 2008 Jason Schmidlapp
11062c5bc4SJason Schmidlapp *
12062c5bc4SJason Schmidlapp * Contact Email: jschmidlapp@users.sourceforge.net
13062c5bc4SJason Schmidlapp *
14062c5bc4SJason Schmidlapp *
15062c5bc4SJason Schmidlapp * Based upon Pthreads-win32 - POSIX Threads Library for Win32
16062c5bc4SJason Schmidlapp * Copyright(C) 1998 John E. Bossom
17062c5bc4SJason Schmidlapp * Copyright(C) 1999,2005 Pthreads-win32 contributors
18062c5bc4SJason Schmidlapp *
19062c5bc4SJason Schmidlapp * Contact Email: rpj@callisto.canberra.edu.au
20062c5bc4SJason Schmidlapp *
21062c5bc4SJason Schmidlapp * The original list of contributors to the Pthreads-win32 project
22062c5bc4SJason Schmidlapp * is contained in the file CONTRIBUTORS.ptw32 included with the
23062c5bc4SJason Schmidlapp * source code distribution. The list can also be seen at the
24062c5bc4SJason Schmidlapp * following World Wide Web location:
25062c5bc4SJason Schmidlapp * http://sources.redhat.com/pthreads-win32/contributors.html
26062c5bc4SJason Schmidlapp *
27062c5bc4SJason Schmidlapp * This library is free software; you can redistribute it and/or
28062c5bc4SJason Schmidlapp * modify it under the terms of the GNU Lesser General Public
29062c5bc4SJason Schmidlapp * License as published by the Free Software Foundation; either
30062c5bc4SJason Schmidlapp * version 2 of the License, or (at your option) any later version.
31062c5bc4SJason Schmidlapp *
32062c5bc4SJason Schmidlapp * This library is distributed in the hope that it will be useful,
33062c5bc4SJason Schmidlapp * but WITHOUT ANY WARRANTY; without even the implied warranty of
34062c5bc4SJason Schmidlapp * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
35062c5bc4SJason Schmidlapp * Lesser General Public License for more details.
36062c5bc4SJason Schmidlapp *
37062c5bc4SJason Schmidlapp * You should have received a copy of the GNU Lesser General Public
38062c5bc4SJason Schmidlapp * License along with this library in the file COPYING.LIB;
39062c5bc4SJason Schmidlapp * if not, write to the Free Software Foundation, Inc.,
40062c5bc4SJason Schmidlapp * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
41062c5bc4SJason Schmidlapp */
42062c5bc4SJason Schmidlapp
43062c5bc4SJason Schmidlapp #include <stdio.h>
44062c5bc4SJason Schmidlapp #include <stdlib.h>
45062c5bc4SJason Schmidlapp
46062c5bc4SJason Schmidlapp #include "pthread.h"
47062c5bc4SJason Schmidlapp #include "implement.h"
48062c5bc4SJason Schmidlapp
49062c5bc4SJason Schmidlapp
50062c5bc4SJason Schmidlapp int
pthread_mutex_init(pthread_mutex_t * mutex,const pthread_mutexattr_t * attr)51062c5bc4SJason Schmidlapp pthread_mutex_init (pthread_mutex_t * mutex, const pthread_mutexattr_t * attr)
52062c5bc4SJason Schmidlapp {
53062c5bc4SJason Schmidlapp int result = 0;
54062c5bc4SJason Schmidlapp pthread_mutex_t mx;
55062c5bc4SJason Schmidlapp
56062c5bc4SJason Schmidlapp
57062c5bc4SJason Schmidlapp if (mutex == NULL)
58062c5bc4SJason Schmidlapp {
59062c5bc4SJason Schmidlapp return EINVAL;
60062c5bc4SJason Schmidlapp }
61062c5bc4SJason Schmidlapp
62062c5bc4SJason Schmidlapp mx = (pthread_mutex_t) calloc (1, sizeof (*mx));
63062c5bc4SJason Schmidlapp
64062c5bc4SJason Schmidlapp if (mx == NULL)
65062c5bc4SJason Schmidlapp {
66062c5bc4SJason Schmidlapp result = ENOMEM;
67062c5bc4SJason Schmidlapp }
68062c5bc4SJason Schmidlapp else
69062c5bc4SJason Schmidlapp {
70062c5bc4SJason Schmidlapp mx->lock_idx = 0;
71062c5bc4SJason Schmidlapp mx->recursive_count = 0;
72062c5bc4SJason Schmidlapp mx->kind = (attr == NULL || *attr == NULL
73062c5bc4SJason Schmidlapp ? PTHREAD_MUTEX_DEFAULT : (*attr)->kind);
74*a12978ccSJeremy Soller mx->ownerThread = NULL;
75062c5bc4SJason Schmidlapp
76062c5bc4SJason Schmidlapp pte_osSemaphoreCreate(0,&mx->handle);
77062c5bc4SJason Schmidlapp
78062c5bc4SJason Schmidlapp }
79062c5bc4SJason Schmidlapp
80062c5bc4SJason Schmidlapp *mutex = mx;
81062c5bc4SJason Schmidlapp
82062c5bc4SJason Schmidlapp return (result);
83062c5bc4SJason Schmidlapp }
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