1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** USBX Component */
16 /** */
17 /** Utility */
18 /** */
19 /**************************************************************************/
20 /**************************************************************************/
21
22
23 /* Include necessary system files. */
24
25 #define UX_SOURCE_CODE
26
27 #include "ux_api.h"
28
29
30 #if !defined(UX_STANDALONE)
31 /**************************************************************************/
32 /* */
33 /* FUNCTION RELEASE */
34 /* */
35 /* _ux_utility_semaphore_create PORTABLE C */
36 /* 6.1.11 */
37 /* AUTHOR */
38 /* */
39 /* Chaoqiong Xiao, Microsoft Corporation */
40 /* */
41 /* DESCRIPTION */
42 /* */
43 /* This function creates a semaphore. */
44 /* */
45 /* INPUT */
46 /* */
47 /* semaphore Semaphore to create */
48 /* semaphore_name Semaphore name */
49 /* initial_count Initial semaphore count */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* Completion Status */
54 /* */
55 /* CALLS */
56 /* */
57 /* tx_semaphore_create ThreadX semaphore create */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* USBX Components */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
68 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
69 /* used UX prefix to refer to */
70 /* TX symbols instead of using */
71 /* them directly, */
72 /* resulting in version 6.1 */
73 /* 04-25-2022 Chaoqiong Xiao Modified comment(s), */
74 /* off in standalone build, */
75 /* resulting in version 6.1.11 */
76 /* */
77 /**************************************************************************/
_ux_utility_semaphore_create(UX_SEMAPHORE * semaphore,CHAR * semaphore_name,UINT initial_count)78 UINT _ux_utility_semaphore_create(UX_SEMAPHORE *semaphore, CHAR *semaphore_name, UINT initial_count)
79 {
80
81 UINT status;
82
83 /* Call ThreadX to create the semaphore. */
84 status = tx_semaphore_create(semaphore, (CHAR *) semaphore_name, initial_count);
85
86 /* Check for status. */
87 if (status != UX_SUCCESS)
88 {
89
90 /* Error trap. */
91 _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_UTILITY, status);
92
93 /* If trace is enabled, insert this event into the trace buffer. */
94 UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_SEMAPHORE_ERROR, semaphore, 0, 0, UX_TRACE_ERRORS, 0, 0)
95
96 }
97
98 /* Return completion status. */
99 return(status);
100 }
101 #endif
102
