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
|
/* Copyright (C) 1997, 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <signal.h>
#define __need_NULL
#include <stddef.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
#include <bp-checks.h>
#include <bits/libc-lock.h>
extern int __syscall_rt_sigtimedwait (const sigset_t *__unbounded, siginfo_t *__unbounded,
const struct timespec *__unbounded, size_t);
/* Return any pending signal or wait for one for the given time. */
static inline int
do_sigwait (const sigset_t *set, int *sig)
{
int ret;
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
#ifdef INTERNAL_SYSCALL
ret = INTERNAL_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
NULL, NULL, _NSIG / 8);
if (! INTERNAL_SYSCALL_ERROR_P (ret))
{
*sig = ret;
ret = 0;
}
else
ret = INTERNAL_SYSCALL_ERRNO (ret);
#else
ret = INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
NULL, NULL, _NSIG / 8);
if (ret != -1)
{
*sig = ret;
ret = 0;
}
else
ret = errno;
#endif
return ret;
}
#ifndef SHARED
weak_extern (__pthread_sigwait)
#endif
int
__sigwait (set, sig)
const sigset_t *set;
int *sig;
{
#ifndef NOT_IN_libc
return __libc_maybe_call2 (pthread_sigwait, (set, sig),
do_sigwait (set, sig));
#else
return do_sigwait (set, sig);
#endif
}
libc_hidden_def (__sigwait)
weak_alias (__sigwait, sigwait)
strong_alias (__sigwait, __libc_sigwait)
|
