1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/****************************************************************
* *
* Copyright (c) 2015 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#ifndef GTM_SEMAPHORE_H
#define GTM_SEMAPHORE_H
#include <semaphore.h>
/* "sem_init" does not return EINTR so no do/while loop needed like for "sem_wait" */
#define GTM_SEM_INIT(POSIX_SEM, PSHARED, VALUE, RC) \
{ \
RC = sem_init(POSIX_SEM, PSHARED, VALUE); \
assert((-1 != RC) || (EINTR != errno)); \
}
#define GTM_SEM_WAIT(POSIX_SEM, RC) \
{ \
do \
{ \
RC = sem_wait(POSIX_SEM); \
} while ((-1 == RC) && (EINTR == errno)); \
}
#define GTM_SEM_TRYWAIT(POSIX_SEM, RC) \
{ \
do \
{ \
RC = sem_trywait(POSIX_SEM); \
} while ((-1 == RC) && (EINTR == errno)); \
}
/* "sem_post" does not return EINTR so no do/while loop needed like for "sem_wait" */
#define GTM_SEM_POST(POSIX_SEM, RC) \
{ \
RC = sem_post(POSIX_SEM); \
assert((-1 != RC) || (EINTR != errno)); \
}
#endif
|
