diff options
Diffstat (limited to 'sysdeps/generic/sigaction.h')
-rw-r--r-- | sysdeps/generic/sigaction.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/sysdeps/generic/sigaction.h b/sysdeps/generic/sigaction.h new file mode 100644 index 0000000000..31ce45c705 --- /dev/null +++ b/sysdeps/generic/sigaction.h @@ -0,0 +1,50 @@ +/* Copyright (C) 1991, 1992 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, 1992 Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +/* These definitions match those used by the 4.4 BSD kernel. + If the operating system has a `sigaction' system call that correctly + implements the POSIX.1 behavior, there should be a system-dependent + version of this file that defines `struct sigaction' and the `SA_*' + constants appropriately. */ + +/* 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. */ + int sa_flags; + }; + +/* Bits in `sa_flags'. */ +#ifdef __USE_BSD +#define SA_ONSTACK 0x1 /* Take signal on signal stack. */ +#define SA_RESTART 0x2 /* Don't restart syscall on signal return. */ +#define SA_DISABLE 0x4 /* Disable alternate signal stack. */ +#endif +#define SA_NOCLDSTOP 0x8 /* Don't send SIGCHLD when children stop. */ + + +/* Values for the HOW argument to `sigprocmask'. */ +#define SIG_BLOCK 1 /* Block signals. */ +#define SIG_UNBLOCK 2 /* Unblock signals. */ +#define SIG_SETMASK 3 /* Set the set of blocked signals. */ |