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254 lines
6.9 KiB
C++
254 lines
6.9 KiB
C++
// -*- C++ -*-
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//=============================================================================
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/**
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* @file os_signal.h
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*
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* signals
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*
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* $Id: os_signal.h 80826 2008-03-04 14:51:23Z wotte $
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*
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* @author Don Hinton <dhinton@dresystems.com>
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* @author This code was originally in various places including ace/OS.h.
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*/
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//=============================================================================
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#ifndef ACE_OS_INCLUDE_OS_SIGNAL_H
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#define ACE_OS_INCLUDE_OS_SIGNAL_H
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#include /**/ "ace/pre.h"
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#include "ace/config-lite.h"
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#if !defined (ACE_LACKS_PRAGMA_ONCE)
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# pragma once
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#endif /* ACE_LACKS_PRAGMA_ONCE */
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#include "ace/os_include/sys/os_types.h"
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#include "ace/os_include/os_pthread.h"
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#if !defined (ACE_LACKS_SIGNAL_H)
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extern "C" {
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# include /**/ <signal.h>
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}
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#endif /* !ACE_LACKS_SIGNAL_H */
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// This must come after signal.h is #included.
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#if defined (SCO)
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# define SIGIO SIGPOLL
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# include /**/ <sys/regset.h>
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#endif /* SCO */
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#if defined (ACE_HAS_SIGINFO_T)
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# if !defined (ACE_LACKS_SIGINFO_H)
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# if defined (__QNX__) || defined (__OpenBSD__) || defined (__INTERIX)
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# include /**/ <sys/siginfo.h>
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# else /* __QNX__ || __OpenBSD__ */
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# include /**/ <siginfo.h>
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# endif /* __QNX__ || __OpenBSD__ */
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# endif /* ACE_LACKS_SIGINFO_H */
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#endif /* ACE_HAS_SIGINFO_T */
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#if defined (ACE_VXWORKS) && (ACE_VXWORKS < 0x620) && !defined (__RTP__)
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# include /**/ <sigLib.h>
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#endif /* ACE_VXWORKS */
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// Place all additions (especially function declarations) within extern "C" {}
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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#if defined (ACE_LACKS_SIGSET)
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typedef u_int sigset_t;
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#endif /* ACE_LACKS_SIGSET */
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#if defined (ACE_HAS_SIG_MACROS)
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# undef sigemptyset
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# undef sigfillset
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# undef sigaddset
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# undef sigdelset
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# undef sigismember
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#endif /* ACE_HAS_SIG_MACROS */
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// This must come after signal.h is #included. It's to counteract
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// the sigemptyset and sigfillset #defines, which only happen
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// when __OPTIMIZE__ is #defined (really!) on Linux.
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#if defined (linux) && defined (__OPTIMIZE__)
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# undef sigemptyset
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# undef sigfillset
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#endif /* linux && __OPTIMIZE__ */
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#if !defined (ACE_HAS_SIG_ATOMIC_T)
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typedef int sig_atomic_t;
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#endif /* !ACE_HAS_SIG_ATOMIC_T */
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# if !defined (SA_SIGINFO)
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# define SA_SIGINFO 0
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# endif /* SA_SIGINFO */
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# if !defined (SA_RESTART)
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# define SA_RESTART 0
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# endif /* SA_RESTART */
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#if !defined (SIGHUP)
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# define SIGHUP 0
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#endif /* SIGHUP */
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#if !defined (SIGINT)
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# define SIGINT 0
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#endif /* SIGINT */
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#if !defined (SIGSEGV)
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# define SIGSEGV 0
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#endif /* SIGSEGV */
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#if !defined (SIGIO)
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# define SIGIO 0
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#endif /* SIGSEGV */
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#if !defined (SIGUSR1)
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# define SIGUSR1 0
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#endif /* SIGUSR1 */
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#if !defined (SIGUSR2)
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# define SIGUSR2 0
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#endif /* SIGUSR2 */
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#if !defined (SIGCHLD)
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# define SIGCHLD 0
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#endif /* SIGCHLD */
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#if !defined (SIGCLD)
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# define SIGCLD SIGCHLD
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#endif /* SIGCLD */
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#if !defined (SIGQUIT)
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# define SIGQUIT 0
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#endif /* SIGQUIT */
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#if !defined (SIGPIPE)
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# define SIGPIPE 0
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#endif /* SIGPIPE */
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#if !defined (SIGALRM)
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# define SIGALRM 0
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#endif /* SIGALRM */
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#if !defined (SIG_DFL)
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# define SIG_DFL ((__sighandler_t) 0)
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#endif /* SIG_DFL */
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#if !defined (SIG_IGN)
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# define SIG_IGN ((__sighandler_t) 1) /* ignore signal */
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#endif /* SIG_IGN */
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#if !defined (SIG_ERR)
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# define SIG_ERR ((__sighandler_t) -1) /* error return from signal */
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#endif /* SIG_ERR */
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// These are used by the <ACE_IPC_SAP::enable> and
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// <ACE_IPC_SAP::disable> methods. They must be unique and cannot
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// conflict with the value of <ACE_NONBLOCK>. We make the numbers
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// negative here so they won't conflict with other values like SIGIO,
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// etc.
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# define ACE_SIGIO -1
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# define ACE_SIGURG -2
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# define ACE_CLOEXEC -3
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#if defined (ACE_VXWORKS)
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# define ACE_NSIG (_NSIGS + 1)
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#elif defined (__Lynx__) || defined (ACE_HAS_RTEMS)
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# define ACE_NSIG (NSIG + 1)
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#else
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// All other platforms set NSIG to one greater than the
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// highest-numbered signal.
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# define ACE_NSIG NSIG
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#endif /* __Lynx__ */
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#if defined (ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES)
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// Prototypes for both signal() and struct sigaction are consistent..
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typedef void (*ACE_SignalHandler)(int);
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typedef void (*ACE_SignalHandlerV)(int);
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#elif defined (ACE_HAS_LYNXOS_SIGNALS) || defined (ACE_HAS_TANDEM_SIGNALS)
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typedef void (*ACE_SignalHandler)(...);
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typedef void (*ACE_SignalHandlerV)(...);
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#elif defined (ACE_HAS_SVR4_SIGNAL_T)
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// SVR4 Signals are inconsistent (e.g., see struct sigaction)..
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typedef void (*ACE_SignalHandler)(int);
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typedef void (*ACE_SignalHandlerV)(void);
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#elif defined (ACE_WIN32)
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typedef void (__cdecl *ACE_SignalHandler)(int);
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typedef void (__cdecl *ACE_SignalHandlerV)(int);
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#elif defined (ACE_HAS_UNIXWARE_SVR4_SIGNAL_T)
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typedef void (*ACE_SignalHandler)(int);
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typedef void (*ACE_SignalHandlerV)(...);
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#elif defined (INTEGRITY)
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typedef void (*ACE_SignalHandler)();
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typedef void (*ACE_SignalHandlerV)(int);
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#elif defined (ACE_HAS_RTEMS)
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typedef void (*ACE_SignalHandler)();
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typedef void (*ACE_SignalHandlerV)();
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#else /* This is necessary for some older broken version of cfront */
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# if defined (SIG_PF)
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# define ACE_SignalHandler SIG_PF
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# else
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typedef void (*ACE_SignalHandler)(int);
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# endif /* SIG_PF */
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typedef void (*ACE_SignalHandlerV)(...);
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#endif /* ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES */
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#if defined (ACE_LACKS_SIGACTION)
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struct sigaction
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{
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int sa_flags;
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ACE_SignalHandlerV sa_handler;
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sigset_t sa_mask;
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};
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#endif /* ACE_LACKS_SIGACTION */
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// Defining POSIX4 real-time signal range.
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#if defined(ACE_HAS_POSIX_REALTIME_SIGNALS)
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# define ACE_SIGRTMIN SIGRTMIN
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# define ACE_SIGRTMAX SIGRTMAX
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#else /* !ACE_HAS_POSIX_REALTIME_SIGNALS */
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# ifndef ACE_SIGRTMIN
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# define ACE_SIGRTMIN 0
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# endif /* ACE_SIGRTMIN */
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# ifndef ACE_SIGRTMAX
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# define ACE_SIGRTMAX 0
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# endif /* ACE_SIGRTMAX */
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#endif /* ACE_HAS_POSIX_REALTIME_SIGNALS */
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#if defined (DIGITAL_UNIX)
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// sigwait is yet another macro on Digital UNIX 4.0, just causing
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// trouble when introducing member functions with the same name.
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// Thanks to Thilo Kielmann" <kielmann@informatik.uni-siegen.de> for
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// this fix.
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# if defined (__DECCXX_VER)
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# undef sigwait
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// cxx on Digital Unix 4.0 needs this declaration. With it,
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// <::_Psigwait> works with cxx -pthread. g++ does _not_ need
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// it.
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int _Psigwait __((const sigset_t *set, int *sig));
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# endif /* __DECCXX_VER */
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#elif !defined (ACE_HAS_SIGWAIT)
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# if defined(ACE_HAS_RTEMS)
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int sigwait (const sigset_t *set, int *sig);
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# else
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int sigwait (sigset_t *set);
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# endif /* ACE_HAS_RTEMS */
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#endif /* ! DIGITAL_UNIX && ! ACE_HAS_SIGWAIT */
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#if !defined (ACE_HAS_PTHREAD_SIGMASK_PROTOTYPE)
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int pthread_sigmask(int, const sigset_t *, sigset_t *);
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#endif /*!ACE_HAS_PTHREAD_SIGMASK_PROTOTYPE */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#include "ace/os_include/os_ucontext.h"
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#include /**/ "ace/post.h"
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#endif /* ACE_OS_INCLUDE_OS_SIGNAL_H */
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