better load-path defaults
[bpt/emacs.git] / src / syssignal.h
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9ab9afa9 1/* syssignal.h - System-dependent definitions for signals.
99cf43f9 2
ba318903 3Copyright (C) 1993, 1999, 2001-2014 Free Software Foundation, Inc.
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4
5This file is part of GNU Emacs.
6
b9b1cc14 7GNU Emacs is free software: you can redistribute it and/or modify
9ab9afa9 8it under the terms of the GNU General Public License as published by
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9the Free Software Foundation, either version 3 of the License, or
10(at your option) any later version.
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11
12GNU Emacs is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
b9b1cc14 18along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
9ab9afa9 19
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20#include <signal.h>
21
4d7e6e51 22extern void init_signals (bool);
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23extern void block_child_signal (sigset_t *);
24extern void unblock_child_signal (sigset_t const *);
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25extern void block_tty_out_signal (sigset_t *);
26extern void unblock_tty_out_signal (sigset_t const *);
2b98b088 27
ae9e757a 28#ifdef HAVE_PTHREAD
333f1b6f 29#include <pthread.h>
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30/* If defined, asynchronous signals delivered to a non-main thread are
31 forwarded to the main thread. */
32#define FORWARD_SIGNAL_TO_MAIN_THREAD
33#endif
34
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35#if defined HAVE_TIMER_SETTIME && defined SIGEV_SIGNAL
36# define HAVE_ITIMERSPEC
37#endif
38
39#if (defined SIGPROF && !defined PROFILING \
40 && (defined HAVE_SETITIMER || defined HAVE_ITIMERSPEC))
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41# define PROFILER_CPU_SUPPORT
42#endif
43
1fa53021 44extern sigset_t empty_mask;
9ab9afa9 45
9af30bdf 46typedef void (*signal_handler_t) (int);
ae877222 47
2fe28299 48extern void emacs_sigaction_init (struct sigaction *, signal_handler_t);
c622b48f 49char const *safe_strsignal (int) ATTRIBUTE_CONST;
2fe28299 50
68c45bf0 51#if NSIG < NSIG_MINIMUM
2fe28299 52# undef NSIG
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53# define NSIG NSIG_MINIMUM
54#endif
55
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56#ifndef SA_SIGINFO
57# define SA_SIGINFO 0
58#endif
59
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60#ifndef emacs_raise
61# define emacs_raise(sig) raise (sig)
62#endif
63
68c45bf0 64#ifndef HAVE_STRSIGNAL
aa1ba90e 65# define strsignal(sig) safe_strsignal (sig)
68c45bf0 66#endif
ab5796a9 67
4d7e6e51 68void deliver_process_signal (int, signal_handler_t);