diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sigaction.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sigaction.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sigaction.h b/sysdeps/unix/sysv/linux/sigaction.h new file mode 100644 index 0000000000..d8930782d7 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sigaction.h @@ -0,0 +1,54 @@ +/* The proper definitions for Linux's sigaction. +Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* Structure describing the action to be taken when a signal arrives. */ +struct sigaction + { + /* Signal handler. */ + __sighandler_t sa_handler; + + /* Additional set of signals to be blocked. */ + __sigset_t sa_mask; + + /* Special flags. */ + unsigned long sa_flags; + + /* Restore handler. */ + void (*sa_restorer) __P ((void)); + }; + +/* Bits in `sa_flags'. */ +#define SA_NOCLDSTOP 1 /* Don't send SIGCHLD when children stop. */ +#ifdef __USE_MISC +#define SA_STACK 0x08000000 /* Use signal stack by using `sa_restorer'. */ +#define SA_RESTART 0x10000000 /* Don't restart syscall on signal return. */ +#define SA_INTERRUPT 0x20000000 /* Historical no-op. */ +#define SA_NODEFER 0x40000000 /* Don't automatically block the signal when + its handler is being executed. */ +#define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */ + +/* Some aliases for the SA_ constants. */ +#define SA_NOMASK SA_NODEFER +#define SA_ONESHOT SA_RESETHAND +#endif + +/* Values for the HOW argument to `sigprocmask'. */ +#define SIG_BLOCK 0 /* Block signals. */ +#define SIG_UNBLOCK 1 /* Unblock signals. */ +#define SIG_SETMASK 2 /* Set the set of blocked signals. */ |