Fix previous commit.
[emacs.git] / src / syssignal.h
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1 /* syssignal.h - System-dependent definitions for signals.
3 Copyright (C) 1993, 1999, 2001-2013 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
20 #include <signal.h>
21 #include <stdbool.h>
23 extern void init_signals (bool);
25 #ifdef HAVE_PTHREAD
26 #include <pthread.h>
27 /* If defined, asynchronous signals delivered to a non-main thread are
28 forwarded to the main thread. */
29 #define FORWARD_SIGNAL_TO_MAIN_THREAD
30 #endif
32 #if defined HAVE_TIMER_SETTIME && defined SIGEV_SIGNAL
33 # define HAVE_ITIMERSPEC
34 #endif
36 #if (defined SIGPROF && !defined PROFILING \
37 && (defined HAVE_SETITIMER || defined HAVE_ITIMERSPEC))
38 # define PROFILER_CPU_SUPPORT
39 #endif
41 extern sigset_t empty_mask;
43 typedef void (*signal_handler_t) (int);
45 extern void emacs_sigaction_init (struct sigaction *, signal_handler_t);
46 char const *safe_strsignal (int) ATTRIBUTE_CONST;
48 #if NSIG < NSIG_MINIMUM
49 # undef NSIG
50 # define NSIG NSIG_MINIMUM
51 #endif
53 #ifndef SA_SIGINFO
54 # define SA_SIGINFO 0
55 #endif
57 #ifndef emacs_raise
58 # define emacs_raise(sig) raise (sig)
59 #endif
61 #ifndef HAVE_STRSIGNAL
62 # define strsignal(sig) safe_strsignal (sig)
63 #endif
65 void deliver_process_signal (int, signal_handler_t);