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_getinheritsched PORTABLE C */
34 /* 6.1.7 */
35 /* AUTHOR */
36 /* */
37 /* William E. Lamie, Microsoft Corporation */
38 /* */
39 /* DESCRIPTION */
40 /* */
41 /* This function returns the inheritsched attribute from the thread */
42 /* attributes object specified.The inheritsched attribute will be one */
43 /* of PTHREAD_EXPLICIT_SCHED or PTHREAD_INHERIT_SCHED. */
44 /* The default inheritsched attribute is PTHREAD_EXPLICIT_SCHED, */
45 /* with a default priority of 0. */
46 /* Use the inheritsched parameter to inherit or explicitly specify the */
47 /* scheduling attributes when creating new threads. */
48 /* */
49 /* */
50 /* INPUT */
51 /* */
52 /* attr Address of the thread attributes */
53 /* inheritsched Address of variable to contain the */
54 /* returned inheritsched attribute */
55 /* */
56 /* */
57 /* OUTPUT */
58 /* */
59 /* 0 if successful */
60 /* Value in case of any error */
61 /* */
62 /* CALLS */
63 /* */
64 /* None */
65 /* */
66 /* CALLED BY */
67 /* */
68 /* Application Code */
69 /* */
70 /* RELEASE HISTORY */
71 /* */
72 /* DATE NAME DESCRIPTION */
73 /* */
74 /* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
75 /* */
76 /**************************************************************************/
pthread_attr_getinheritsched(pthread_attr_t * attr,INT * inheritsched)77 INT pthread_attr_getinheritsched(pthread_attr_t *attr, INT *inheritsched)
78 {
79 /* First check the attribute object is already destroyed? */
80 if (attr->inuse == TX_FALSE)
81 {
82 posix_errno = EINVAL;
83 posix_set_pthread_errno(EINVAL);
84 return(EINVAL);
85 }
86 else
87 {
88 *inheritsched = attr->inherit_sched ;
89 return(OK);
90 }
91 }
92
93
