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code.delx.au - gnu-emacs/blob - src/syssignal.h
1 /* syssignal.h - System-dependent definitions for signals.
3 Copyright (C) 1993, 1999, 2001-2014 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/>. */
22 extern void init_signals (bool);
23 extern void block_tty_out_signal (sigset_t
*);
24 extern void unblock_tty_out_signal (sigset_t
const *);
28 /* If defined, asynchronous signals delivered to a non-main thread are
29 forwarded to the main thread. */
30 #define FORWARD_SIGNAL_TO_MAIN_THREAD
33 #if defined HAVE_TIMER_SETTIME && defined SIGEV_SIGNAL
34 # define HAVE_ITIMERSPEC
37 #if (defined SIGPROF && !defined PROFILING \
38 && (defined HAVE_SETITIMER || defined HAVE_ITIMERSPEC))
39 # define PROFILER_CPU_SUPPORT
42 extern sigset_t empty_mask
;
44 typedef void (*signal_handler_t
) (int);
46 extern void emacs_sigaction_init (struct sigaction
*, signal_handler_t
);
47 char const *safe_strsignal (int) ATTRIBUTE_CONST
;
49 #if NSIG < NSIG_MINIMUM
51 # define NSIG NSIG_MINIMUM
59 # define emacs_raise(sig) raise (sig)
62 #ifndef HAVE_STRSIGNAL
63 # define strsignal(sig) safe_strsignal (sig)
66 void deliver_process_signal (int, signal_handler_t
);