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_attr_destroy PORTABLE C */
34 /* 6.1.7 */
35 /* AUTHOR */
36 /* */
37 /* William E. Lamie, Microsoft Corporation */
38 /* */
39 /* DESCRIPTION */
40 /* */
41 /* This function destroys a pthread attributes object and allows the */
42 /* system to reclaim any resources associated with that pthread */
43 /* attributes object.This doesn't have an effect on any threads created*/
44 /* using this pthread attributes object. */
45 /* */
46 /* */
47 /* INPUT */
48 /* */
49 /* attr Address of the pthread attributes */
50 /* object to be destroyed. */
51 /* */
52 /* OUTPUT */
53 /* */
54 /* 0 If successful */
55 /* Value In case of any error or the results */
56 /* of referencing the object after it */
57 /* has been destroyed. */
58 /* */
59 /* CALLS */
60 /* */
61 /* None */
62 /* */
63 /* CALLED BY */
64 /* */
65 /* Application Code */
66 /* */
67 /* RELEASE HISTORY */
68 /* */
69 /* DATE NAME DESCRIPTION */
70 /* */
71 /* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
72 /* */
73 /**************************************************************************/
pthread_attr_destroy(pthread_attr_t * attr)74 INT pthread_attr_destroy(pthread_attr_t *attr)
75 {
76
77 /* Clear the flag and make this pthread_attr structure free */
78 /* First check the attribute object is already destroyed? */
79 if (attr->inuse == TX_FALSE)
80 return(EINVAL);
81 else
82 {
83 /* No then destroy the attributes object */
84 attr->inuse = TX_FALSE;
85 return(OK);
86 }
87 }
88
