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_getschedparam                               PORTABLE C      */
35 /*                                                           6.1.7        */
36 /*  AUTHOR                                                                */
37 /*                                                                        */
38 /*    William E. Lamie, Microsoft Corporation                             */
39 /*                                                                        */
40 /*  DESCRIPTION                                                           */
41 /*                                                                        */
42 /*    This function returns the scheduling parameters attribute from the  */
43 /*    pthread TCB.                                                        */
44 /*                                                                        */
45 /*                                                                        */
46 /*  INPUT                                                                 */
47 /*                                                                        */
48 /*    thread                         POSIX thread ID                      */
49 /*    policy                         Address of the scheduling policy     */
50 /*    sched_param                    Address of structure to contain the  */
51 /*                                   returned scheduling parameters       */
52 /*                                                                        */
53 /*                                                                        */
54 /*  OUTPUT                                                                */
55 /*                                                                        */
56 /*     0                             if successful                        */
57 /*     Value                         in case of any error                 */
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_getschedparam(pthread_t thread,INT * policy,struct sched_param * param)74 INT pthread_getschedparam(pthread_t thread, INT *policy, struct sched_param *param)
75 {
76 
77     POSIX_TCB  *thread_tcb;
78 
79 
80     thread_tcb=posix_tid2tcb(thread);
81 
82     if(thread_tcb==NULL)
83     {
84         return(ESRCH);
85     }
86     else
87     {
88         *policy=thread_tcb->sched_policy;
89         *param=thread_tcb->sched_attr;
90         return(OK);
91     }
92 
93 }
94