| |
| /*--------------------------------------------------------------------*/ |
| /*--- Signal-related libc stuff. pub_core_libcsignal.h ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2000-2013 Julian Seward |
| jseward@acm.org |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License as |
| published by the Free Software Foundation; either version 2 of the |
| License, or (at your option) any later version. |
| |
| This program 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 |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307, USA. |
| |
| The GNU General Public License is contained in the file COPYING. |
| */ |
| |
| #ifndef __PUB_CORE_LIBCSIGNAL_H |
| #define __PUB_CORE_LIBCSIGNAL_H |
| |
| //-------------------------------------------------------------------- |
| // PURPOSE: This module contains all the libc code related to signals. |
| //-------------------------------------------------------------------- |
| |
| #include "pub_tool_libcsignal.h" |
| |
| /* Note that these use the vki_ (kernel) structure |
| definitions, which are different in places from those that glibc |
| defines. Since we're operating right at the kernel interface, glibc's view |
| of the world is entirely irrelevant. */ |
| |
| /* --- Signal set ops --- */ |
| extern Int VG_(sigfillset) ( vki_sigset_t* set ); |
| extern Int VG_(sigemptyset) ( vki_sigset_t* set ); |
| |
| extern Bool VG_(isfullsigset) ( const vki_sigset_t* set ); |
| extern Bool VG_(isemptysigset) ( const vki_sigset_t* set ); |
| extern Bool VG_(iseqsigset) ( const vki_sigset_t* set1, |
| const vki_sigset_t* set2 ); |
| |
| extern Int VG_(sigaddset) ( vki_sigset_t* set, Int signum ); |
| extern Int VG_(sigdelset) ( vki_sigset_t* set, Int signum ); |
| extern Int VG_(sigismember) ( const vki_sigset_t* set, Int signum ); |
| |
| extern void VG_(sigaddset_from_set) ( vki_sigset_t* dst, vki_sigset_t* src ); |
| extern void VG_(sigdelset_from_set) ( vki_sigset_t* dst, vki_sigset_t* src ); |
| extern void VG_(sigintersectset) ( vki_sigset_t* dst, vki_sigset_t* src ); |
| extern void VG_(sigcomplementset) ( vki_sigset_t* dst, vki_sigset_t* src ); |
| |
| /* --- Mess with the kernel's sig state --- */ |
| /* VG_(sigprocmask) is in pub_tool_libcsignal.h. */ |
| |
| extern Int VG_(sigaction) ( Int signum, |
| const vki_sigaction_toK_t* act, |
| vki_sigaction_fromK_t* oldact ); |
| |
| /* Convert a sigaction which you got from the kernel (a _fromK_t) to |
| one which you can give back to the kernel (a _toK_t). On Linux, |
| vki_sigaction_{toK,fromK}_t are identical, so this is a no-op |
| (structure copy), but on Darwin it's not a no-op. */ |
| extern void VG_(convert_sigaction_fromK_to_toK)( |
| vki_sigaction_fromK_t*, /*OUT*/vki_sigaction_toK_t*); |
| |
| |
| extern Int VG_(kill) ( Int pid, Int signo ); |
| extern Int VG_(tkill) ( Int lwpid, Int signo ); |
| |
| /* A cut-down version of POSIX sigtimedwait: poll for pending signals |
| mentioned in the sigset_t, and if any are present, select one |
| arbitrarily, return its number (which must be > 0), and put |
| auxiliary info about it in the siginfo_t, and make it |
| not-pending-any-more. If none are pending, return zero. The _zero |
| refers to the fact that there is zero timeout, so if no signals are |
| pending it returns immediately. Perhaps a better name would be |
| 'sigpoll'. Returns -1 on error, 0 if no signals pending, and n > 0 |
| if signal n was selected. */ |
| extern Int VG_(sigtimedwait_zero)( const vki_sigset_t *, vki_siginfo_t * ); |
| |
| #endif // __PUB_CORE_LIBCSIGNAL_H |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end ---*/ |
| /*--------------------------------------------------------------------*/ |