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 /** Semaphore */
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_semaphore.h"
30
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _txe_semaphore_put PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* William E. Lamie, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function checks for errors in the semaphore put function call. */
45 /* */
46 /* INPUT */
47 /* */
48 /* semaphore_ptr Pointer to semaphore control block*/
49 /* */
50 /* OUTPUT */
51 /* */
52 /* TX_SEMAPHORE_ERROR Invalid semaphore pointer */
53 /* status Actual completion status */
54 /* */
55 /* CALLS */
56 /* */
57 /* _tx_semaphore_put Actual put semaphore function */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* Application Code */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 05-19-2020 William E. Lamie Initial Version 6.0 */
68 /* 09-30-2020 Yuxin Zhou Modified comment(s), */
69 /* resulting in version 6.1 */
70 /* */
71 /**************************************************************************/
_txe_semaphore_put(TX_SEMAPHORE * semaphore_ptr)72 UINT _txe_semaphore_put(TX_SEMAPHORE *semaphore_ptr)
73 {
74
75 UINT status;
76
77
78 /* Check for an invalid semaphore pointer. */
79 if (semaphore_ptr == TX_NULL)
80 {
81
82 /* Semaphore pointer is invalid, return appropriate error code. */
83 status = TX_SEMAPHORE_ERROR;
84 }
85
86 /* Now check for invalid semaphore ID. */
87 else if (semaphore_ptr -> tx_semaphore_id != TX_SEMAPHORE_ID)
88 {
89
90 /* Semaphore pointer is invalid, return appropriate error code. */
91 status = TX_SEMAPHORE_ERROR;
92 }
93 else
94 {
95
96 /* Call actual put semaphore function. */
97 status = _tx_semaphore_put(semaphore_ptr);
98 }
99
100 /* Return completion status. */
101 return(status);
102 }
103
104
