ACE/ace/os_include/os_signal.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file    os_signal.h
   6  *
   7  *  signals
   8  *
   9  *  @author Don Hinton <dhinton@dresystems.com>
  10  *  @author This code was originally in various places including ace/OS.h.
  11  */
  12 //=============================================================================
  13
  14 #ifndef ACE_OS_INCLUDE_OS_SIGNAL_H
  15 #define ACE_OS_INCLUDE_OS_SIGNAL_H
  16
  17 #include /**/ "ace/pre.h"
  18
  19 #include /**/ "ace/config-lite.h"
  20
  21 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  22 # pragma once
  23 #endif /* ACE_LACKS_PRAGMA_ONCE */
  24
  25 #include "ace/os_include/sys/os_types.h"
  26
  27 extern "C" {
  28 #  include /**/ <signal.h>
  29 }
  30
  31 #if defined (ACE_HAS_SIGINFO_T)
  32 #  if !defined (ACE_LACKS_SIGINFO_H)
  33 #    if defined (ACE_HAS_SYS_SIGINFO_H)
  34 #      include /**/ <sys/siginfo.h>
  35 #    else  /* ACE_HAS_SYS_SIGINFO_H */
  36 #      include /**/ <siginfo.h>
  37 #    endif /* ACE_HAS_SYS_SIGINFO_H */
  38 #  endif /* ACE_LACKS_SIGINFO_H */
  39 #endif /* ACE_HAS_SIGINFO_T */
  40
  41 // Place all additions (especially function declarations) within extern "C" {}
  42 #ifdef __cplusplus
  43 extern "C"
  44 {
  45 #endif /* __cplusplus */
  46
  47 #if defined (ACE_LACKS_SIGSET_T)
  48   typedef u_int sigset_t;
  49 #endif /* ACE_LACKS_SIGSET_T && !sigset_t */
  50
  51 #if !defined (ACE_HAS_SIG_ATOMIC_T)
  52    typedef int sig_atomic_t;
  53 #endif /* !ACE_HAS_SIG_ATOMIC_T */
  54
  55 # if !defined (SA_SIGINFO)
  56 #   define SA_SIGINFO 0
  57 # endif /* SA_SIGINFO */
  58
  59 # if !defined (SA_RESTART)
  60 #   define SA_RESTART 0
  61 # endif /* SA_RESTART */
  62
  63 #if !defined (SIGHUP)
  64 #  define SIGHUP 0
  65 #endif /* SIGHUP */
  66
  67 #if !defined (SIGINT)
  68 #  define SIGINT 0
  69 #endif /* SIGINT */
  70
  71 #if !defined (SIGSEGV)
  72 #  define SIGSEGV 0
  73 #endif /* SIGSEGV */
  74
  75 #if !defined (SIGIO)
  76 #  define SIGIO 0
  77 #endif /* SIGSEGV */
  78
  79 #if !defined (SIGUSR1)
  80 #  define SIGUSR1 0
  81 #endif /* SIGUSR1 */
  82
  83 #if !defined (SIGUSR2)
  84 #  define SIGUSR2 0
  85 #endif /* SIGUSR2 */
  86
  87 #if !defined (SIGCHLD)
  88 #  define SIGCHLD 0
  89 #endif /* SIGCHLD */
  90
  91 #if !defined (SIGCLD)
  92 #  define SIGCLD SIGCHLD
  93 #endif /* SIGCLD */
  94
  95 #if !defined (SIGQUIT)
  96 #  define SIGQUIT 0
  97 #endif /* SIGQUIT */
  98
  99 #if !defined (SIGPIPE)
 100 #  define SIGPIPE 0
 101 #endif /* SIGPIPE */
 102
 103 #if !defined (SIGALRM)
 104 #  define SIGALRM 0
 105 #endif /* SIGALRM */
 106
 107 #if !defined (SIGABRT)
 108 #  define SIGABRT 0
 109 #endif /* SIGABRT */
 110
 111 #if !defined (SIGTERM)
 112 #  define SIGTERM 0
 113 #endif /* SIGTERM */
 114
 115 #if !defined (SIG_DFL)
 116 #  define SIG_DFL ((__sighandler_t) 0)
 117 #endif /* SIG_DFL */
 118
 119 #if !defined (SIG_IGN)
 120 #  define SIG_IGN ((__sighandler_t) 1)     /* ignore signal */
 121 #endif /* SIG_IGN */
 122
 123 #if !defined (SIG_ERR)
 124 #  define SIG_ERR ((__sighandler_t) -1)    /* error return from signal */
 125 #endif /* SIG_ERR */
 126
 127 // These are used by the <ACE_IPC_SAP::enable> and
 128 // <ACE_IPC_SAP::disable> methods.  They must be unique and cannot
 129 // conflict with the value of <ACE_NONBLOCK>.  We make the numbers
 130 // negative here so they won't conflict with other values like SIGIO,
 131 // etc.
 132 # define ACE_SIGIO -1
 133 # define ACE_SIGURG -2
 134 # define ACE_CLOEXEC -3
 135
 136 #if defined (ACE_VXWORKS)
 137 #  define ACE_NSIG (_NSIGS + 1)
 138 #elif defined (__Lynx__)
 139 #  define ACE_NSIG (NSIG + 1)
 140 #else
 141    // All other platforms set NSIG to one greater than the
 142    // highest-numbered signal.
 143 #  define ACE_NSIG NSIG
 144 #endif /* ACE_VXWORKS */
 145
 146 #if defined (ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES)
 147   // Prototypes for both signal() and struct sigaction are consistent..
 148   using ACE_SignalHandler = void (*)(int);
 149   using ACE_SignalHandlerV = void (*)(int);
 150 #elif defined (ACE_HAS_SVR4_SIGNAL_T)
 151    // SVR4 Signals are inconsistent (e.g., see struct sigaction)..
 152    using ACE_SignalHandler = void (*)(int);
 153    using ACE_SignalHandlerV = void (*)();
 154 #elif defined (ACE_WIN32)
 155    using ACE_SignalHandler = void (__cdecl *)(int);
 156    using ACE_SignalHandlerV = void (__cdecl *)(int);
 157 #elif defined (INTEGRITY)
 158    using ACE_SignalHandler = void (*)();
 159    using ACE_SignalHandlerV = void (*)(int);
 160 #else /* This is necessary for some older broken version of cfront */
 161 #  if defined (SIG_PF)
 162 #    define ACE_SignalHandler SIG_PF
 163 #  else
 164      using ACE_SignalHandler = void (*)(int);
 165 #  endif /* SIG_PF */
 166    using ACE_SignalHandlerV = void (*)(...);
 167 #endif /* ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES */
 168
 169 #if defined (ACE_LACKS_SIGACTION)
 170    struct sigaction
 171    {
 172      int sa_flags;
 173      ACE_SignalHandlerV sa_handler;
 174      sigset_t sa_mask;
 175    };
 176 #endif /* ACE_LACKS_SIGACTION */
 177
 178 // Defining POSIX4 real-time signal range.
 179 #if defined(ACE_HAS_POSIX_REALTIME_SIGNALS)
 180 #  define ACE_SIGRTMIN SIGRTMIN
 181 #  define ACE_SIGRTMAX SIGRTMAX
 182 #else /* !ACE_HAS_POSIX_REALTIME_SIGNALS */
 183 #  ifndef ACE_SIGRTMIN
 184 #    define ACE_SIGRTMIN 0
 185 #  endif /* ACE_SIGRTMIN */
 186 #  ifndef ACE_SIGRTMAX
 187 #    define ACE_SIGRTMAX 0
 188 #  endif /* ACE_SIGRTMAX */
 189 #endif /* ACE_HAS_POSIX_REALTIME_SIGNALS */
 190
 191 #ifdef __cplusplus
 192 }
 193 #endif /* __cplusplus */
 194
 195 #include "ace/os_include/os_ucontext.h"
 196
 197 #include /**/ "ace/post.h"
 198 #endif /* ACE_OS_INCLUDE_OS_SIGNAL_H */