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
|
/* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2006 Steven J. Hill <sjhill@realitydiluted.com>
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/resource.h>
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
#include <errno.h>
#include <sysdep-cancel.h>
#else
libc_hidden_proto(wait4)
#endif
extern __typeof(waitpid) __libc_waitpid;
__pid_t __libc_waitpid(__pid_t pid, int *wait_stat, int options)
{
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
if (SINGLE_THREAD_P)
{
#ifdef __NR_waitpid
return INLINE_SYSCALL (waitpid, 3, pid, wait_stat, options);
#else
return INLINE_SYSCALL (wait4, 4, pid, wait_stat, options, NULL);
#endif
}
int oldtype = LIBC_CANCEL_ASYNC ();
#ifdef __NR_waitpid
int result = INLINE_SYSCALL (waitpid, 3, pid, wait_stat, options);
#else
int result = INLINE_SYSCALL (wait4, 4, pid, wait_stat, options, NULL);
#endif
LIBC_CANCEL_RESET (oldtype);
return result;
}
#else
return wait4(pid, wait_stat, options, NULL);
}
#endif
libc_hidden_proto(waitpid)
weak_alias(__libc_waitpid,waitpid)
libc_hidden_weak(waitpid)
|