projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d5efd131 | 1 | /* Definitions for Linux/ia64 sigaction. |
| 688903eb | 2 | Copyright (C) 1996-2018 Free Software Foundation, Inc. |
| d5efd131 MF |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 75efb018 MF |
16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| d5efd131 MF |
18 | |
| 19 | #ifndef _SIGNAL_H | |
| 20 | # error "Never include <bits/sigaction.h> directly; use <signal.h> instead." | |
| 21 | #endif | |
| 22 | ||
| 23 | /* Structure describing the action to be taken when a signal arrives. */ | |
| 24 | struct sigaction | |
| 25 | { | |
| 26 | /* Signal handler. */ | |
| cd65836b | 27 | #if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED |
| d5efd131 MF |
28 | union |
| 29 | { | |
| 30 | /* Used if SA_SIGINFO is not set. */ | |
| 31 | __sighandler_t sa_handler; | |
| 32 | /* Used if SA_SIGINFO is set. */ | |
| 33 | void (*sa_sigaction) (int, siginfo_t *, void *); | |
| 34 | } | |
| 35 | __sigaction_handler; | |
| 36 | # define sa_handler __sigaction_handler.sa_handler | |
| 37 | # define sa_sigaction __sigaction_handler.sa_sigaction | |
| 38 | #else | |
| 39 | __sighandler_t sa_handler; | |
| 40 | #endif | |
| 41 | ||
| 42 | /* Special flags. */ | |
| 1a5cb6c7 | 43 | int sa_flags; |
| 992f71dd | 44 | int __glibc_reserved0; |
| d5efd131 MF |
45 | |
| 46 | /* Additional set of signals to be blocked. */ | |
| 47 | __sigset_t sa_mask; | |
| 48 | }; | |
| 49 | ||
| 50 | /* Bits in `sa_flags'. */ | |
| 51 | #define SA_NOCLDSTOP 0x00000001 /* Don't send SIGCHLD when children stop. */ | |
| 52 | #define SA_NOCLDWAIT 0x00000002 /* Don't create zombie on child death. */ | |
| 53 | #define SA_SIGINFO 0x00000004 | |
| cd65836b | 54 | #if defined __USE_XOPEN_EXTENDED || defined __USE_MISC |
| d5efd131 MF |
55 | # define SA_ONSTACK 0x08000000 /* Use signal stack by using `sa_restorer'. */ |
| 56 | #endif | |
| cd65836b | 57 | #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 |
| d5efd131 MF |
58 | # define SA_RESTART 0x10000000 /* Restart syscall on signal return. */ |
| 59 | # define SA_NODEFER 0x40000000 /* Don't automatically block the signal | |
| 60 | when its handler is being executed. */ | |
| 61 | # define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */ | |
| 62 | #endif | |
| 63 | #ifdef __USE_MISC | |
| 64 | # define SA_INTERRUPT 0x20000000 /* Historic no-op. */ | |
| 65 | ||
| 66 | /* Some aliases for the SA_ constants. */ | |
| 67 | # define SA_NOMASK SA_NODEFER | |
| 68 | # define SA_ONESHOT SA_RESETHAND | |
| 69 | # define SA_STACK SA_ONSTACK | |
| 70 | #endif | |
| 71 | ||
| 72 | /* Values for the HOW argument to `sigprocmask'. */ | |
| 73 | #define SIG_BLOCK 0 /* for blocking signals */ | |
| 74 | #define SIG_UNBLOCK 1 /* for unblocking signals */ | |
| 75 | #define SIG_SETMASK 2 /* for setting the signal mask */ |