1/* __pthread_mutex_checklocked. Hurd version.
2 Copyright (C) 2016-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <pthread.h>
20#include <stdlib.h>
21#include <assert.h>
22#include <pt-internal.h>
23#include "pt-mutex.h"
24#include <hurdlock.h>
25
26int
27__pthread_mutex_checklocked (pthread_mutex_t *mtxp)
28{
29 int ret = 0;
30
31 switch (MTX_TYPE (mtxp))
32 {
33 case PT_MTX_NORMAL:
34 break;
35
36 case PT_MTX_RECURSIVE:
37 case PT_MTX_ERRORCHECK:
38 case PT_MTX_NORMAL | PTHREAD_MUTEX_ROBUST:
39 case PT_MTX_RECURSIVE | PTHREAD_MUTEX_ROBUST:
40 case PT_MTX_ERRORCHECK | PTHREAD_MUTEX_ROBUST:
41 if (!mtx_owned_p (mtxp, _pthread_self (), mtxp->__flags))
42 ret = EPERM;
43 break;
44
45 default:
46 ret = EINVAL;
47 break;
48 }
49
50 return ret;
51}
52

source code of glibc/sysdeps/mach/hurd/htl/pt-mutex-checklocked.c