diff options
Diffstat (limited to 'sysdeps/unix/sysv/sysv4/bits/sigaction.h')
| -rw-r--r-- | sysdeps/unix/sysv/sysv4/bits/sigaction.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/sysv4/bits/sigaction.h b/sysdeps/unix/sysv/sysv4/bits/sigaction.h new file mode 100644 index 0000000000..1305ba61e6 --- /dev/null +++ b/sysdeps/unix/sysv/sysv4/bits/sigaction.h @@ -0,0 +1,51 @@ +/* The proper definitions for SVR4's sigaction. +Copyright (C) 1993, 1994, 1996 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., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +/* Structure describing the action to be taken when a signal arrives. */ +struct sigaction + { + /* Special flags. */ + int sa_flags; + + /* Signal handler. */ + __sighandler_t sa_handler; + + /* Additional set of signals to be blocked. */ + __sigset_t sa_mask; + + /* Padding. */ + int sa_resv[2]; + }; + +/* Bits in `sa_flags'. */ +#ifdef __USE_MISC +#define SA_ONSTACK 0x1 /* Take signal on signal stack. */ +#define SA_RESETHAND 0x2 /* Reset to SIG_DFL on entry to handler. */ +#define SA_RESTART 0x4 /* Don't restart syscall on signal return. */ +#define SA_SIGINFO 0x8 /* Provide additional info to the handler. */ +#define SA_NODEFER 0x10 /* Don't automatically block the signal when + its handler is being executed. */ +#define SA_NOCLDWAIT 0x10000 /* Don't save zombie processes. */ +#endif +#define SA_NOCLDSTOP 0x20000 /* 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. */ |