1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** POSIX wrapper for THREADX */
17 /** */
18 /** */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23 /* Include necessary system files. */
24
25 #include "tx_api.h" /* Threadx API */
26 #include "pthread.h" /* Posix API */
27 #include "px_int.h" /* Posix helper functions */
28
29
30 /**************************************************************************/
31 /* */
32 /* FUNCTION RELEASE */
33 /* */
34 /* pthread_attr_getinheritsched PORTABLE C */
35 /* 6.1.7 */
36 /* AUTHOR */
37 /* */
38 /* William E. Lamie, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* This function returns the inheritsched attribute from the thread */
43 /* attributes object specified.The inheritsched attribute will be one */
44 /* of PTHREAD_EXPLICIT_SCHED or PTHREAD_INHERIT_SCHED. */
45 /* The default inheritsched attribute is PTHREAD_EXPLICIT_SCHED, */
46 /* with a default priority of 0. */
47 /* Use the inheritsched parameter to inherit or explicitly specify the */
48 /* scheduling attributes when creating new threads. */
49 /* */
50 /* */
51 /* INPUT */
52 /* */
53 /* attr Address of the thread attributes */
54 /* inheritsched Address of variable to contain the */
55 /* returned inheritsched attribute */
56 /* */
57 /* */
58 /* OUTPUT */
59 /* */
60 /* 0 if successful */
61 /* Value in case of any error */
62 /* */
63 /* CALLS */
64 /* */
65 /* None */
66 /* */
67 /* CALLED BY */
68 /* */
69 /* Application Code */
70 /* */
71 /* RELEASE HISTORY */
72 /* */
73 /* DATE NAME DESCRIPTION */
74 /* */
75 /* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
76 /* */
77 /**************************************************************************/
pthread_attr_getinheritsched(pthread_attr_t * attr,INT * inheritsched)78 INT pthread_attr_getinheritsched(pthread_attr_t *attr, INT *inheritsched)
79 {
80 /* First check the attribute object is already destroyed? */
81 if (attr->inuse == TX_FALSE)
82 {
83 posix_errno = EINVAL;
84 posix_set_pthread_errno(EINVAL);
85 return(EINVAL);
86 }
87 else
88 {
89 *inheritsched = attr->inherit_sched ;
90 return(OK);
91 }
92 }
93
94
