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 /** ThreadX Component */
17 /** */
18 /** Thread */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23 #define TX_SOURCE_CODE
24
25
26 /* Include necessary system files. */
27
28 #include "tx_api.h"
29 #include "tx_thread.h"
30 #ifdef TX_ENABLE_EVENT_TRACE
31 #include "tx_trace.h"
32 #endif
33
34 /**************************************************************************/
35 /* */
36 /* FUNCTION RELEASE */
37 /* */
38 /* _tx_thread_identify PORTABLE C */
39 /* 6.1 */
40 /* AUTHOR */
41 /* */
42 /* William E. Lamie, Microsoft Corporation */
43 /* */
44 /* DESCRIPTION */
45 /* */
46 /* This function returns the control block pointer of the currently */
47 /* executing thread. If the return value is NULL, no thread is */
48 /* executing. */
49 /* */
50 /* INPUT */
51 /* */
52 /* None */
53 /* */
54 /* OUTPUT */
55 /* */
56 /* TX_THREAD * Pointer to control block of */
57 /* currently executing thread */
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 /* 05-19-2020 William E. Lamie Initial Version 6.0 */
72 /* 09-30-2020 Yuxin Zhou Modified comment(s), */
73 /* resulting in version 6.1 */
74 /* */
75 /**************************************************************************/
_tx_thread_identify(VOID)76 TX_THREAD *_tx_thread_identify(VOID)
77 {
78
79 TX_THREAD *thread_ptr;
80
81 TX_INTERRUPT_SAVE_AREA
82
83
84 /* Disable interrupts to put the timer on the created list. */
85 TX_DISABLE
86
87 #ifdef TX_ENABLE_EVENT_TRACE
88
89 /* If trace is enabled, insert this event into the trace buffer. */
90 TX_TRACE_IN_LINE_INSERT(TX_TRACE_THREAD_IDENTIFY, 0, 0, 0, 0, TX_TRACE_THREAD_EVENTS)
91 #endif
92
93 /* Log this kernel call. */
94 TX_EL_THREAD_IDENTIFY_INSERT
95
96 /* Pickup thread pointer. */
97 TX_THREAD_GET_CURRENT(thread_ptr)
98
99 /* Restore interrupts. */
100 TX_RESTORE
101
102 /* Return the current thread pointer. */
103 return(thread_ptr);
104 }
105
106
