blob: 519e37b21aa4889c25ca6e7bddd037d1fecd1b01 (
plain)
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
|
/* ISC license. */
#include <skalibs/sysdeps.h>
#ifdef SKALIBS_HASSIGNALFD
#include <errno.h>
#include <signal.h>
#include <sys/signalfd.h>
#include <skalibs/selfpipe.h>
#include "selfpipe-internal.h"
int selfpipe_trapset (sigset_t const *set)
{
sigset_t old ;
if (selfpipe_fd < 0) return (errno = EBADF, -1) ;
if (sigprocmask(SIG_SETMASK, set, &old) < 0) return -1 ;
if (signalfd(selfpipe_fd, set, SFD_NONBLOCK | SFD_CLOEXEC) < 0)
{
int e = errno ;
sigprocmask(SIG_SETMASK, &old, 0) ;
errno = e ;
return -1 ;
}
selfpipe_caught = *set ;
return 0 ;
}
#else
#include <skalibs/nonposix.h>
#include <errno.h>
#include <signal.h>
#include <skalibs/sig.h>
#include <skalibs/nsig.h>
#include <skalibs/selfpipe.h>
#include "selfpipe-internal.h"
int selfpipe_trapset (sigset_t const *set)
{
unsigned int i = 1 ;
if (selfpipe_fd < 0) return (errno = EBADF, -1) ;
for (; i < NSIG ; i++)
{
int h = sigismember(set, i) ;
if (h < 0) continue ;
if (h)
{
if (sig_catcha(i, &selfpipe_ssa) < 0) break ;
}
else if (sigismember(&selfpipe_caught, i))
{
if (sig_restore(i) < 0) break ;
}
}
if (i < NSIG)
{
int e = errno ;
sig_restoreto(set, i) ;
errno = e ;
return -1 ;
}
selfpipe_caught = *set ;
return 0 ;
}
#endif
|
