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_self PORTABLE C */
35 /* 6.1.7 */
36 /* AUTHOR */
37 /* */
38 /* William E. Lamie, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* */
43 /* This function returns thread ID of the calling pthread . */
44 /* */
45 /* */
46 /* */
47 /* */
48 /* INPUT */
49 /* */
50 /* Nothing */
51 /* */
52 /* OUTPUT */
53 /* */
54 /* thread_ID pthread handle of the calling thread */
55 /* */
56 /* CALLS */
57 /* */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* Application Code */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 06-02-2021 William E. Lamie Initial Version 6.1.7 */
68 /* */
69 /**************************************************************************/
pthread_self(VOID)70 pthread_t pthread_self(VOID)
71 {
72
73 TX_THREAD *thread_ptr;
74 pthread_t thread_ID;
75
76 /* Get the thread identifier of the currently running thread */
77 thread_ptr = tx_thread_identify();
78
79 /* Convert thread identifier to posix thread ID */
80
81 thread_ID = posix_thread2tid(thread_ptr);
82
83 /* Determine if this thread is actually the signal thread helper. */
84 if (((POSIX_TCB *) thread_ptr) -> signals.signal_handler)
85 {
86
87 /* Yes, override the thread_ID with the non-signal thread ID. */
88 thread_ID = (pthread_t) ((POSIX_TCB *) thread_ptr) -> signals.base_thread_ptr;
89 }
90
91
92 /* All done. */
93 return(thread_ID);
94 }
95
