njn | de62cbf | 2005-06-10 22:08:14 +0000 | [diff] [blame] | 1 | |
| 2 | /*--------------------------------------------------------------------*/ |
| 3 | /*--- Signal-related libc stuff. pub_core_libcsignal.h ---*/ |
| 4 | /*--------------------------------------------------------------------*/ |
| 5 | |
| 6 | /* |
| 7 | This file is part of Valgrind, a dynamic binary instrumentation |
| 8 | framework. |
| 9 | |
sewardj | 9eecbbb | 2010-05-03 21:37:12 +0000 | [diff] [blame] | 10 | Copyright (C) 2000-2010 Julian Seward |
njn | de62cbf | 2005-06-10 22:08:14 +0000 | [diff] [blame] | 11 | jseward@acm.org |
| 12 | |
| 13 | This program is free software; you can redistribute it and/or |
| 14 | modify it under the terms of the GNU General Public License as |
| 15 | published by the Free Software Foundation; either version 2 of the |
| 16 | License, or (at your option) any later version. |
| 17 | |
| 18 | This program is distributed in the hope that it will be useful, but |
| 19 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 21 | General Public License for more details. |
| 22 | |
| 23 | You should have received a copy of the GNU General Public License |
| 24 | along with this program; if not, write to the Free Software |
| 25 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 26 | 02111-1307, USA. |
| 27 | |
| 28 | The GNU General Public License is contained in the file COPYING. |
| 29 | */ |
| 30 | |
| 31 | #ifndef __PUB_CORE_LIBCSIGNAL_H |
| 32 | #define __PUB_CORE_LIBCSIGNAL_H |
| 33 | |
| 34 | //-------------------------------------------------------------------- |
| 35 | // PURPOSE: This module contains all the libc code related to signals. |
| 36 | //-------------------------------------------------------------------- |
| 37 | |
| 38 | #include "pub_tool_libcsignal.h" |
| 39 | |
sewardj | c57bc14 | 2006-04-19 19:31:46 +0000 | [diff] [blame] | 40 | /* Note that these use the vki_ (kernel) structure |
| 41 | definitions, which are different in places from those that glibc |
| 42 | defines. Since we're operating right at the kernel interface, glibc's view |
| 43 | of the world is entirely irrelevant. */ |
| 44 | |
| 45 | /* --- Signal set ops --- */ |
| 46 | extern Int VG_(sigfillset) ( vki_sigset_t* set ); |
| 47 | extern Int VG_(sigemptyset) ( vki_sigset_t* set ); |
| 48 | |
| 49 | extern Bool VG_(isfullsigset) ( const vki_sigset_t* set ); |
| 50 | extern Bool VG_(isemptysigset) ( const vki_sigset_t* set ); |
| 51 | extern Bool VG_(iseqsigset) ( const vki_sigset_t* set1, |
| 52 | const vki_sigset_t* set2 ); |
| 53 | |
| 54 | extern Int VG_(sigaddset) ( vki_sigset_t* set, Int signum ); |
| 55 | extern Int VG_(sigdelset) ( vki_sigset_t* set, Int signum ); |
| 56 | extern Int VG_(sigismember) ( const vki_sigset_t* set, Int signum ); |
| 57 | |
| 58 | extern void VG_(sigaddset_from_set) ( vki_sigset_t* dst, vki_sigset_t* src ); |
| 59 | extern void VG_(sigdelset_from_set) ( vki_sigset_t* dst, vki_sigset_t* src ); |
njn | cda2f0f | 2009-05-18 02:12:08 +0000 | [diff] [blame] | 60 | extern void VG_(sigintersectset) ( vki_sigset_t* dst, vki_sigset_t* src ); |
| 61 | extern void VG_(sigcomplementset) ( vki_sigset_t* dst, vki_sigset_t* src ); |
sewardj | c57bc14 | 2006-04-19 19:31:46 +0000 | [diff] [blame] | 62 | |
| 63 | /* --- Mess with the kernel's sig state --- */ |
| 64 | /* VG_(sigprocmask) is in pub_tool_libcsignal.h. */ |
| 65 | |
| 66 | extern Int VG_(sigaction) ( Int signum, |
njn | cda2f0f | 2009-05-18 02:12:08 +0000 | [diff] [blame] | 67 | const vki_sigaction_toK_t* act, |
| 68 | vki_sigaction_fromK_t* oldact ); |
| 69 | |
| 70 | /* Convert a sigaction which you got from the kernel (a _fromK_t) to |
| 71 | one which you can give back to the kernel (a _toK_t). On Linux and |
| 72 | AIX, vki_sigaction_{toK,fromK}_t are identical, so this is a no-op |
| 73 | (structure copy), but on Darwin it's not a no-op. */ |
| 74 | extern void VG_(convert_sigaction_fromK_to_toK)( |
| 75 | vki_sigaction_fromK_t*, /*OUT*/vki_sigaction_toK_t*); |
| 76 | |
sewardj | c57bc14 | 2006-04-19 19:31:46 +0000 | [diff] [blame] | 77 | |
sewardj | c57bc14 | 2006-04-19 19:31:46 +0000 | [diff] [blame] | 78 | extern Int VG_(kill) ( Int pid, Int signo ); |
njn | 99109fe | 2009-05-20 07:10:48 +0000 | [diff] [blame] | 79 | extern Int VG_(tkill) ( Int lwpid, Int signo ); |
sewardj | c57bc14 | 2006-04-19 19:31:46 +0000 | [diff] [blame] | 80 | |
sewardj | 1383bdd | 2006-10-17 01:30:47 +0000 | [diff] [blame] | 81 | /* A cut-down version of POSIX sigtimedwait: poll for pending signals |
| 82 | mentioned in the sigset_t, and if any are present, select one |
| 83 | arbitrarily, return its number (which must be > 0), and put |
| 84 | auxiliary info about it in the siginfo_t, and make it |
| 85 | not-pending-any-more. If none are pending, return zero. The _zero |
| 86 | refers to the fact that there is zero timeout, so if no signals are |
| 87 | pending it returns immediately. Perhaps a better name would be |
| 88 | 'sigpoll'. Returns -1 on error, 0 if no signals pending, and n > 0 |
| 89 | if signal n was selected. */ |
| 90 | extern Int VG_(sigtimedwait_zero)( const vki_sigset_t *, vki_siginfo_t * ); |
sewardj | c57bc14 | 2006-04-19 19:31:46 +0000 | [diff] [blame] | 91 | |
njn | de62cbf | 2005-06-10 22:08:14 +0000 | [diff] [blame] | 92 | #endif // __PUB_CORE_LIBCSIGNAL_H |
| 93 | |
| 94 | /*--------------------------------------------------------------------*/ |
| 95 | /*--- end ---*/ |
| 96 | /*--------------------------------------------------------------------*/ |