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// -*- C++ -*-
//=============================================================================
/**
* @file os_signal.h
*
* signals
*
* $Id$
*
* @author Don Hinton <dhinton@dresystems.com>
* @author This code was originally in various places including ace/OS.h.
*/
//=============================================================================
#ifndef ACE_OS_INCLUDE_OS_SIGNAL_H
#define ACE_OS_INCLUDE_OS_SIGNAL_H
#include /**/ "ace/pre.h"
#include "ace/config-lite.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/os_include/sys/os_types.h"
#if !defined (ACE_LACKS_SIGNAL_H)
extern "C" {
# include /**/ <signal.h>
}
#endif /* !ACE_LACKS_SIGNAL_H */
// This must come after signal.h is #included.
#if defined (SCO)
# define SIGIO SIGPOLL
# include /**/ <sys/regset.h>
#endif /* SCO */
#if defined (ACE_HAS_SIGINFO_T)
# if !defined (ACE_LACKS_SIGINFO_H)
# if defined (__QNX__) || defined (__OpenBSD__) || defined (__INTERIX)
# include /**/ <sys/siginfo.h>
# else /* __QNX__ || __OpenBSD__ */
# include /**/ <siginfo.h>
# endif /* __QNX__ || __OpenBSD__ */
# endif /* ACE_LACKS_SIGINFO_H */
#endif /* ACE_HAS_SIGINFO_T */
#if defined (ACE_VXWORKS) && (ACE_VXWORKS < 0x620) && !defined (__RTP__)
# include /**/ <sigLib.h>
#endif /* ACE_VXWORKS */
// Place all additions (especially function declarations) within extern "C" {}
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
#if defined (ACE_LACKS_SIGSET)
typedef u_int sigset_t;
#endif /* ACE_LACKS_SIGSET */
#if defined (ACE_HAS_SIG_MACROS)
# undef sigemptyset
# undef sigfillset
# undef sigaddset
# undef sigdelset
# undef sigismember
#endif /* ACE_HAS_SIG_MACROS */
// This must come after signal.h is #included. It's to counteract
// the sigemptyset and sigfillset #defines, which only happen
// when __OPTIMIZE__ is #defined (really!) on Linux.
#if defined (linux) && defined (__OPTIMIZE__)
# undef sigemptyset
# undef sigfillset
#endif /* linux && __OPTIMIZE__ */
#if !defined (ACE_HAS_SIG_ATOMIC_T)
typedef int sig_atomic_t;
#endif /* !ACE_HAS_SIG_ATOMIC_T */
# if !defined (SA_SIGINFO)
# define SA_SIGINFO 0
# endif /* SA_SIGINFO */
# if !defined (SA_RESTART)
# define SA_RESTART 0
# endif /* SA_RESTART */
#if !defined (SIGHUP)
# define SIGHUP 0
#endif /* SIGHUP */
#if !defined (SIGINT)
# define SIGINT 0
#endif /* SIGINT */
#if !defined (SIGSEGV)
# define SIGSEGV 0
#endif /* SIGSEGV */
#if !defined (SIGIO)
# define SIGIO 0
#endif /* SIGSEGV */
#if !defined (SIGUSR1)
# define SIGUSR1 0
#endif /* SIGUSR1 */
#if !defined (SIGUSR2)
# define SIGUSR2 0
#endif /* SIGUSR2 */
#if !defined (SIGCHLD)
# define SIGCHLD 0
#endif /* SIGCHLD */
#if !defined (SIGCLD)
# define SIGCLD SIGCHLD
#endif /* SIGCLD */
#if !defined (SIGQUIT)
# define SIGQUIT 0
#endif /* SIGQUIT */
#if !defined (SIGPIPE)
# define SIGPIPE 0
#endif /* SIGPIPE */
#if !defined (SIGALRM)
# define SIGALRM 0
#endif /* SIGALRM */
#if !defined (SIG_DFL)
# define SIG_DFL ((__sighandler_t) 0)
#endif /* SIG_DFL */
#if !defined (SIG_IGN)
# define SIG_IGN ((__sighandler_t) 1) /* ignore signal */
#endif /* SIG_IGN */
#if !defined (SIG_ERR)
# define SIG_ERR ((__sighandler_t) -1) /* error return from signal */
#endif /* SIG_ERR */
// These are used by the <ACE_IPC_SAP::enable> and
// <ACE_IPC_SAP::disable> methods. They must be unique and cannot
// conflict with the value of <ACE_NONBLOCK>. We make the numbers
// negative here so they won't conflict with other values like SIGIO,
// etc.
# define ACE_SIGIO -1
# define ACE_SIGURG -2
# define ACE_CLOEXEC -3
#if defined (ACE_VXWORKS)
# define ACE_NSIG (_NSIGS + 1)
#elif defined (__Lynx__) || defined (ACE_HAS_RTEMS)
# define ACE_NSIG (NSIG + 1)
#else
// All other platforms set NSIG to one greater than the
// highest-numbered signal.
# define ACE_NSIG NSIG
#endif /* __Lynx__ */
#if defined (ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES) || defined (ACE_HAS_LYNXOS50_SIGNALS)
// Prototypes for both signal() and struct sigaction are consistent..
typedef void (*ACE_SignalHandler)(int);
typedef void (*ACE_SignalHandlerV)(int);
#elif defined (ACE_HAS_LYNXOS_SIGNALS) || defined (ACE_HAS_TANDEM_SIGNALS)
typedef void (*ACE_SignalHandler)(...);
typedef void (*ACE_SignalHandlerV)(...);
#elif defined (ACE_HAS_SVR4_SIGNAL_T)
// SVR4 Signals are inconsistent (e.g., see struct sigaction)..
typedef void (*ACE_SignalHandler)(int);
typedef void (*ACE_SignalHandlerV)(void);
#elif defined (ACE_WIN32)
typedef void (__cdecl *ACE_SignalHandler)(int);
typedef void (__cdecl *ACE_SignalHandlerV)(int);
#elif defined (ACE_HAS_UNIXWARE_SVR4_SIGNAL_T)
typedef void (*ACE_SignalHandler)(int);
typedef void (*ACE_SignalHandlerV)(...);
#elif defined (INTEGRITY)
typedef void (*ACE_SignalHandler)();
typedef void (*ACE_SignalHandlerV)(int);
#elif defined (ACE_HAS_RTEMS)
typedef void (*ACE_SignalHandler)();
typedef void (*ACE_SignalHandlerV)();
#else /* This is necessary for some older broken version of cfront */
# if defined (SIG_PF)
# define ACE_SignalHandler SIG_PF
# else
typedef void (*ACE_SignalHandler)(int);
# endif /* SIG_PF */
typedef void (*ACE_SignalHandlerV)(...);
#endif /* ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES */
#if defined (ACE_LACKS_SIGACTION)
struct sigaction
{
int sa_flags;
ACE_SignalHandlerV sa_handler;
sigset_t sa_mask;
};
#endif /* ACE_LACKS_SIGACTION */
// Defining POSIX4 real-time signal range.
#if defined(ACE_HAS_POSIX_REALTIME_SIGNALS)
# define ACE_SIGRTMIN SIGRTMIN
# define ACE_SIGRTMAX SIGRTMAX
#else /* !ACE_HAS_POSIX_REALTIME_SIGNALS */
# ifndef ACE_SIGRTMIN
# define ACE_SIGRTMIN 0
# endif /* ACE_SIGRTMIN */
# ifndef ACE_SIGRTMAX
# define ACE_SIGRTMAX 0
# endif /* ACE_SIGRTMAX */
#endif /* ACE_HAS_POSIX_REALTIME_SIGNALS */
#if defined (DIGITAL_UNIX)
// sigwait is yet another macro on Digital UNIX 4.0, just causing
// trouble when introducing member functions with the same name.
// Thanks to Thilo Kielmann" <kielmann@informatik.uni-siegen.de> for
// this fix.
# if defined (__DECCXX_VER)
# undef sigwait
// cxx on Digital Unix 4.0 needs this declaration. With it,
// <::_Psigwait> works with cxx -pthread. g++ does _not_ need
// it.
int _Psigwait __((const sigset_t *set, int *sig));
# endif /* __DECCXX_VER */
#elif !defined (ACE_HAS_SIGWAIT)
# if defined(ACE_HAS_RTEMS)
int sigwait (const sigset_t *set, int *sig);
# else
int sigwait (sigset_t *set);
# endif /* ACE_HAS_RTEMS */
#endif /* ! DIGITAL_UNIX && ! ACE_HAS_SIGWAIT */
#if !defined (ACE_HAS_PTHREAD_SIGMASK_PROTOTYPE)
int pthread_sigmask(int, const sigset_t *, sigset_t *);
#endif /*!ACE_HAS_PTHREAD_SIGMASK_PROTOTYPE */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#include "ace/os_include/os_ucontext.h"
#include /**/ "ace/post.h"
#endif /* ACE_OS_INCLUDE_OS_SIGNAL_H */
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