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 /** POSIX wrapper for THREADX                                             */
16 /**                                                                       */
17 /**                                                                       */
18 /**                                                                       */
19 /**************************************************************************/
20 /**************************************************************************/
21 
22 /* Include necessary system files.  */
23 
24 #include "tx_api.h"    /* Threadx API */
25 #include "pthread.h"  /* Posix API */
26 #include "px_int.h"    /* Posix helper functions */
27 
28 
29 /**************************************************************************/
30 /*                                                                        */
31 /*  FUNCTION                                               RELEASE        */
32 /*                                                                        */
33 /*    posix_sem_reset                                     PORTABLE C      */
34 /*                                                           6.1.7        */
35 /*  AUTHOR                                                                */
36 /*                                                                        */
37 /*    William E. Lamie, Microsoft Corporation                             */
38 /*                                                                        */
39 /*  DESCRIPTION                                                           */
40 /*                                                                        */
41 /*    This function initializes the POSIX's internal semaphore pool.      */
42 /*                                                                        */
43 /*  INPUT                                                                 */
44 /*                                                                        */
45 /*    sem                           Semaphore pointer                     */
46 /*                                                                        */
47 /*  OUTPUT                                                                */
48 /*                                                                        */
49 /*    None                                                                */
50 /*                                                                        */
51 /*  CALLS                                                                 */
52 /*                                                                        */
53 /*    None                                                                */
54 /*                                                                        */
55 /*  CALLED BY                                                             */
56 /*                                                                        */
57 /*    POSIX internal Code                                                 */
58 /*                                                                        */
59 /*  RELEASE HISTORY                                                       */
60 /*                                                                        */
61 /*    DATE              NAME                      DESCRIPTION             */
62 /*                                                                        */
63 /*  06-02-2021     William E. Lamie         Initial Version 6.1.7         */
64 /*                                                                        */
65 /**************************************************************************/
posix_sem_reset(sem_t * sem)66 VOID posix_sem_reset(sem_t *sem )
67 {
68 
69     sem->count = 0;
70     sem->in_use = TX_FALSE;
71     sem->psemId = 0;
72     sem->refCnt = 0;
73     sem->sem_name = "";
74     sem->unlink_flag =TX_FALSE;
75     return;
76 }
77