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
87
88
89
90
91
92
93
94
95
96
97
|
/* A GNU-like <signal.h>.
Copyright (C) 2006-2007 Free Software Foundation, Inc.
This program 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 of the License, or
(at your option) any later version.
This program 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if defined __need_sig_atomic_t || defined __need_sigset_t
/* Special invocation convention inside glibc header files. */
# @INCLUDE_NEXT@ @NEXT_SIGNAL_H@
#else
/* Normal invocation convention. */
#ifndef _GL_SIGNAL_H
/* The include_next requires a split double-inclusion guard. */
#@INCLUDE_NEXT@ @NEXT_SIGNAL_H@
#ifndef _GL_SIGNAL_H
#define _GL_SIGNAL_H
/* The definition of GL_LINK_WARNING is copied here. */
#ifdef __cplusplus
extern "C" {
#endif
#if !@HAVE_POSIX_SIGNALBLOCKING@
/* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */
# include <sys/types.h>
/* Maximum signal number + 1. */
# ifndef NSIG
# define NSIG 32
# endif
/* This code supports only 32 signals. */
typedef int verify_NSIG_constraint[2 * (NSIG <= 32) - 1];
/* A set or mask of signals. */
# if !@HAVE_SIGSET_T@
typedef unsigned int sigset_t;
# endif
/* Test whether a given signal is contained in a signal set. */
extern int sigismember (const sigset_t *set, int sig);
/* Initialize a signal set to the empty set. */
extern int sigemptyset (sigset_t *set);
/* Add a signal to a signal set. */
extern int sigaddset (sigset_t *set, int sig);
/* Remove a signal from a signal set. */
extern int sigdelset (sigset_t *set, int sig);
/* Fill a signal set with all possible signals. */
extern int sigfillset (sigset_t *set);
/* Return the set of those blocked signals that are pending. */
extern int sigpending (sigset_t *set);
/* If OLD_SET is not NULL, put the current set of blocked signals in *OLD_SET.
Then, if SET is not NULL, affect the current set of blocked signals by
combining it with *SET as indicated in OPERATION.
In this implementation, you are not allowed to change a signal handler
while the signal is blocked. */
# define SIG_BLOCK 0 /* blocked_set = blocked_set | *set; */
# define SIG_SETMASK 1 /* blocked_set = *set; */
# define SIG_UNBLOCK 2 /* blocked_set = blocked_set & ~*set; */
extern int sigprocmask (int operation, const sigset_t *set, sigset_t *old_set);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _GL_SIGNAL_H */
#endif /* _GL_SIGNAL_H */
#endif
|
