blob: 57e63937a9df03b072fba49077c2b01d26fec717 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/**
* @file
*
* @brief Initializing and Destroying a Mutex
* @ingroup POSIXAPI
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/posix/muteximpl.h>
/*
* 11.3.2 Initializing and Destroying a Mutex, P1003.1c/Draft 10, p. 87
*/
int pthread_mutex_destroy(
pthread_mutex_t *mutex
)
{
POSIX_Mutex_Control *the_mutex;
Thread_queue_Context queue_context;
int eno;
_Objects_Allocator_lock();
the_mutex = _POSIX_Mutex_Get( mutex, &queue_context );
if ( the_mutex != NULL ) {
_POSIX_Mutex_Acquire_critical( the_mutex, &queue_context );
/*
* XXX: There is an error for the mutex being locked
* or being in use by a condition variable.
*/
if (
!_CORE_mutex_Is_locked( &the_mutex->Mutex.Recursive.Mutex )
) {
_Objects_Close( &_POSIX_Mutex_Information, &the_mutex->Object );
_POSIX_Mutex_Release( the_mutex, &queue_context );
_CORE_mutex_Destroy( &the_mutex->Mutex.Recursive.Mutex );
_POSIX_Mutex_Free( the_mutex );
eno = 0;
} else {
_POSIX_Mutex_Release( the_mutex, &queue_context );
eno = EBUSY;
}
} else {
eno = EINVAL;
}
_Objects_Allocator_unlock();
return eno;
}
|
