1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** POSIX wrapper for THREADX */
16 /** */
17 /** */
18 /** */
19 /**************************************************************************/
20 /**************************************************************************/
21
22 /* Include necessary system files. */
23
24 #include "tx_api.h" /* Threadx API */
25 #include "pthread.h" /* Posix API */
26 #include "px_int.h" /* Posix helper functions */
27
28
29 /**************************************************************************/
30 /* */
31 /* FUNCTION RELEASE */
32 /* */
33 /* pthread_mutex_destroy PORTABLE C */
34 /* 6.1.7 */
35 /* AUTHOR */
36 /* */
37 /* William E. Lamie, Microsoft Corporation */
38 /* */
39 /* DESCRIPTION */
40 /* */
41 /* This function shall destroy the mutex object referenced by mutex; */
42 /* the mutex object becomes,in effect, uninitialized.A destroyed mutex */
43 /* object can be reinitialized using pthread_mutex_init() */
44 /* It shall be safe to destroy an initialized mutex that is unlocked. */
45 /* Attempting to destroy a locked mutex results in undefined behavior. */
46 /* */
47 /* INPUT */
48 /* */
49 /* mutex Address of the mutex */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* 0 If successful */
54 /* Value In case of any error */
55 /* */
56 /* CALLS */
57 /* */
58 /* tx_mutex_delete ThreadX Mutex service */
59 /* */
60 /* CALLED BY */
61 /* */
62 /* Application Code */
63 /* */
64 /* RELEASE HISTORY */
65 /* */
66 /* DATE NAME DESCRIPTION */
67 /* */
68 /* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
69 /* */
70 /**************************************************************************/
pthread_mutex_destroy(pthread_mutex_t * mutex)71 INT pthread_mutex_destroy(pthread_mutex_t *mutex)
72 {
73
74 TX_INTERRUPT_SAVE_AREA
75
76 TX_MUTEX *mutex_ptr;
77 INT status,retval;
78
79 /* Disable interrupts. */
80 TX_DISABLE
81
82 mutex_ptr = (TX_MUTEX*) mutex;
83
84 status = tx_mutex_delete(mutex_ptr);
85 if (status == TX_SUCCESS)
86 {
87 mutex->in_use = TX_FALSE;
88 retval = OK;
89 }
90 else
91 {
92 posix_errno = EINVAL;
93 posix_set_pthread_errno(EINVAL);
94 retval = EINVAL;
95 }
96
97 TX_RESTORE
98 return(retval);
99 }
100
