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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/* Copyright (C) 2002-2022 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* Threads compatibility routines for libgcc2 for VxWorks.
This file implements the GTHREAD_HAS_COND part of the interface
exposed by gthr-vxworks.h. */
#include "gthr.h"
#if __GTHREAD_HAS_COND
#include <taskLib.h>
/* --------------------------- Condition Variables ------------------------ */
void
__gthread_cond_init (__gthread_cond_t *cond)
{
if (!cond)
return;
*cond = semBCreate (SEM_Q_FIFO, SEM_EMPTY);
}
int
__gthread_cond_destroy (__gthread_cond_t *cond)
{
if (!cond)
return ERROR;
return __CHECK_RESULT (semDelete (*cond));
}
int
__gthread_cond_broadcast (__gthread_cond_t *cond)
{
if (!cond)
return ERROR;
return __CHECK_RESULT (semFlush (*cond));
}
int
__gthread_cond_wait (__gthread_cond_t *cond,
__gthread_mutex_t *mutex)
{
if (!cond)
return ERROR;
if (!mutex)
return ERROR;
int ret = __CHECK_RESULT (semExchange (*mutex, *cond, WAIT_FOREVER));
__RETURN_ERRNO_IF_NOT_OK (semTake (*mutex, WAIT_FOREVER));
return ret;
}
int
__gthread_cond_wait_recursive (__gthread_cond_t *cond,
__gthread_recursive_mutex_t *mutex)
{
return __gthread_cond_wait (cond, mutex);
}
#endif
|
