-/* syssignal.h - System-dependent definitions for signals.
-
-Copyright (C) 1993, 1999, 2001-2012 Free Software Foundation, Inc.
-
-This file is part of GNU Emacs.
-
-GNU Emacs 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.
-
-GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
-
-extern void init_signals (void);
-
-#ifdef HAVE_PTHREAD
-#include <pthread.h>
-/* If defined, asynchronous signals delivered to a non-main thread are
- forwarded to the main thread. */
-#define FORWARD_SIGNAL_TO_MAIN_THREAD
-#endif
-
-/* Don't #include <signal.h>. That header should always be #included
- before "config.h", because some configuration files (like s/hpux.h)
- indicate that SIGIO doesn't work by #undef-ing SIGIO. If this file
- #includes <signal.h>, then that will re-#define SIGIO and confuse
- things. */
-/* XXX This is not correct anymore, there is a BROKEN_SIGIO macro. */
-
-#define SIGMASKTYPE sigset_t
-
-#define SIGEMPTYMASK (empty_mask)
-extern sigset_t empty_mask;
-
-/* POSIX pretty much destroys any possibility of writing sigmask as a
- macro in standard C. We always define our own version because the
- predefined macro in Glibc 2.1 is only provided for compatibility for old
- programs that use int as signal mask type. */
-#undef sigmask
-#ifdef __GNUC__
-#define sigmask(SIG) \
- ({ \
- sigset_t _mask; \
- sigemptyset (&_mask); \
- sigaddset (&_mask, SIG); \
- _mask; \
- })
-#else /* ! defined (__GNUC__) */
-extern sigset_t sys_sigmask ();
-#define sigmask(SIG) (sys_sigmask (SIG))
-#endif /* ! defined (__GNUC__) */
-
-#undef sigpause
-#define sigpause(MASK) sigsuspend (&(MASK))
-
-#define sigblock(SIG) sys_sigblock (SIG)
-#define sigunblock(SIG) sys_sigunblock (SIG)
-#ifndef sigsetmask
-#define sigsetmask(SIG) sys_sigsetmask (SIG)
-#endif
-#undef signal
-#define signal(SIG,ACT) sys_signal(SIG,ACT)
-
-/* Whether this is what all systems want or not, this is what
- appears to be assumed in the source, for example data.c:arith_error. */
-typedef void (*signal_handler_t) (int);
-
-signal_handler_t sys_signal (int signal_number, signal_handler_t action);
-sigset_t sys_sigblock (sigset_t new_mask);
-sigset_t sys_sigunblock (sigset_t new_mask);
-sigset_t sys_sigsetmask (sigset_t new_mask);
-#if ! (defined TIOCNOTTY || defined USG5 || defined CYGWIN)
-_Noreturn void croak (char *);
-#endif
-
-#define sys_sigdel(MASK,SIG) sigdelset (&MASK,SIG)
-
-#define sigfree() sigsetmask (SIGEMPTYMASK)
-
-#if defined (SIGIO) && defined (BROKEN_SIGIO)
-# undef SIGIO
-#endif
-/* These are only used by AIX */
-#if defined (SIGPOLL) && defined (BROKEN_SIGPOLL)
-#undef SIGPOLL
-#endif
-#if defined (SIGAIO) && defined (BROKEN_SIGAIO)
-#undef SIGAIO
-#endif
-#if defined (SIGPTY) && defined (BROKEN_SIGPTY)
-#undef SIGPTY
-#endif
-
-
-/* FIXME? Emacs only defines NSIG_MINIMUM on some platforms? */
-#if NSIG < NSIG_MINIMUM
-# ifdef NSIG
-# undef NSIG
-# endif
-# define NSIG NSIG_MINIMUM
-#endif
-
-/* On bsd, [man says] kill does not accept a negative number to kill a pgrp.
- Must do that using the killpg call. */
-#ifdef BSD_SYSTEM
-#define EMACS_KILLPG(gid, signo) (killpg ( (gid), (signo)))
-#else
-#ifdef WINDOWSNT
-#define EMACS_KILLPG(gid, signo) (kill (gid, signo))
-#else
-#define EMACS_KILLPG(gid, signo) (kill (-(gid), (signo)))
-#endif
-#endif
-
-/* Define SIGCHLD as an alias for SIGCLD. There are many conditionals
- testing SIGCHLD. */
-#ifdef SIGCLD
-#ifndef SIGCHLD
-#define SIGCHLD SIGCLD
-#endif /* SIGCHLD */
-#endif /* ! defined (SIGCLD) */
-
-#ifndef HAVE_STRSIGNAL
-/* strsignal is in sysdep.c */
-char *strsignal (int);
-#endif
-
-#ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
-extern pthread_t main_thread;
-void handle_on_main_thread (int, signal_handler_t);
-#endif
+/* syssignal.h - System-dependent definitions for signals.
+
+Copyright (C) 1993, 1999, 2001-2014 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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.
+
+GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <signal.h>
+
+extern void init_signals (bool);
+
+#ifdef HAVE_PTHREAD
+#include <pthread.h>
+/* If defined, asynchronous signals delivered to a non-main thread are
+ forwarded to the main thread. */
+#define FORWARD_SIGNAL_TO_MAIN_THREAD
+#endif
+
+#if defined HAVE_TIMER_SETTIME && defined SIGEV_SIGNAL
+# define HAVE_ITIMERSPEC
+#endif
+
+#if (defined SIGPROF && !defined PROFILING \
+ && (defined HAVE_SETITIMER || defined HAVE_ITIMERSPEC))
+# define PROFILER_CPU_SUPPORT
+#endif
+
+extern sigset_t empty_mask;
+
+typedef void (*signal_handler_t) (int);
+
+extern void emacs_sigaction_init (struct sigaction *, signal_handler_t);
+char const *safe_strsignal (int) ATTRIBUTE_CONST;
+
+#if NSIG < NSIG_MINIMUM
+# undef NSIG
+# define NSIG NSIG_MINIMUM
+#endif
+
+#ifndef SA_SIGINFO
+# define SA_SIGINFO 0
+#endif
+
+#ifndef emacs_raise
+# define emacs_raise(sig) raise (sig)
+#endif
+
+#ifndef HAVE_STRSIGNAL
+# define strsignal(sig) safe_strsignal (sig)
+#endif
+
+void deliver_process_signal (int, signal_handler_t);
HCoop / bpt / emacs.git / blobdiff