dep/ACE_wrappers/ace/os_include/os_signal.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file    os_signal.h
   6  *
   7  *  signals
   8  *
   9  *  $Id: os_signal.h 80826 2008-03-04 14:51:23Z wotte $
  10  *
  11  *  @author Don Hinton <dhinton@dresystems.com>
  12  *  @author This code was originally in various places including ace/OS.h.
  13  */
  14 //=============================================================================
  15
  16 #ifndef ACE_OS_INCLUDE_OS_SIGNAL_H
  17 #define ACE_OS_INCLUDE_OS_SIGNAL_H
  18
  19 #include /**/ "ace/pre.h"
  20
  21 #include "ace/config-lite.h"
  22
  23 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  24 # pragma once
  25 #endif /* ACE_LACKS_PRAGMA_ONCE */
  26
  27 #include "ace/os_include/sys/os_types.h"
  28 #include "ace/os_include/os_pthread.h"
  29
  30 #if !defined (ACE_LACKS_SIGNAL_H)
  31    extern "C" {
  32 #  include /**/ <signal.h>
  33    }
  34 #endif /* !ACE_LACKS_SIGNAL_H */
  35
  36 // This must come after signal.h is #included.
  37 #if defined (SCO)
  38 #  define SIGIO SIGPOLL
  39 #  include /**/ <sys/regset.h>
  40 #endif /* SCO */
  41
  42 #if defined (ACE_HAS_SIGINFO_T)
  43 #  if !defined (ACE_LACKS_SIGINFO_H)
  44 #    if defined (__QNX__) || defined (__OpenBSD__) || defined (__INTERIX)
  45 #      include /**/ <sys/siginfo.h>
  46 #    else  /* __QNX__ || __OpenBSD__ */
  47 #      include /**/ <siginfo.h>
  48 #    endif /* __QNX__ || __OpenBSD__ */
  49 #  endif /* ACE_LACKS_SIGINFO_H */
  50 #endif /* ACE_HAS_SIGINFO_T */
  51
  52 #if defined (ACE_VXWORKS) && (ACE_VXWORKS < 0x620) && !defined (__RTP__)
  53 #  include /**/ <sigLib.h>
  54 #endif /* ACE_VXWORKS */
  55
  56 // Place all additions (especially function declarations) within extern "C" {}
  57 #ifdef __cplusplus
  58 extern "C"
  59 {
  60 #endif /* __cplusplus */
  61
  62 #if defined (ACE_LACKS_SIGSET)
  63   typedef u_int sigset_t;
  64 #endif /* ACE_LACKS_SIGSET */
  65
  66 #if defined (ACE_HAS_SIG_MACROS)
  67 #  undef sigemptyset
  68 #  undef sigfillset
  69 #  undef sigaddset
  70 #  undef sigdelset
  71 #  undef sigismember
  72 #endif /* ACE_HAS_SIG_MACROS */
  73
  74 // This must come after signal.h is #included.  It's to counteract
  75 // the sigemptyset and sigfillset #defines, which only happen
  76 // when __OPTIMIZE__ is #defined (really!) on Linux.
  77 #if defined (linux) && defined (__OPTIMIZE__)
  78 #  undef sigemptyset
  79 #  undef sigfillset
  80 #endif /* linux && __OPTIMIZE__ */
  81
  82 #if !defined (ACE_HAS_SIG_ATOMIC_T)
  83    typedef int sig_atomic_t;
  84 #endif /* !ACE_HAS_SIG_ATOMIC_T */
  85
  86 # if !defined (SA_SIGINFO)
  87 #   define SA_SIGINFO 0
  88 # endif /* SA_SIGINFO */
  89
  90 # if !defined (SA_RESTART)
  91 #   define SA_RESTART 0
  92 # endif /* SA_RESTART */
  93
  94 #if !defined (SIGHUP)
  95 #  define SIGHUP 0
  96 #endif /* SIGHUP */
  97
  98 #if !defined (SIGINT)
  99 #  define SIGINT 0
 100 #endif /* SIGINT */
 101
 102 #if !defined (SIGSEGV)
 103 #  define SIGSEGV 0
 104 #endif /* SIGSEGV */
 105
 106 #if !defined (SIGIO)
 107 #  define SIGIO 0
 108 #endif /* SIGSEGV */
 109
 110 #if !defined (SIGUSR1)
 111 #  define SIGUSR1 0
 112 #endif /* SIGUSR1 */
 113
 114 #if !defined (SIGUSR2)
 115 #  define SIGUSR2 0
 116 #endif /* SIGUSR2 */
 117
 118 #if !defined (SIGCHLD)
 119 #  define SIGCHLD 0
 120 #endif /* SIGCHLD */
 121
 122 #if !defined (SIGCLD)
 123 #  define SIGCLD SIGCHLD
 124 #endif /* SIGCLD */
 125
 126 #if !defined (SIGQUIT)
 127 #  define SIGQUIT 0
 128 #endif /* SIGQUIT */
 129
 130 #if !defined (SIGPIPE)
 131 #  define SIGPIPE 0
 132 #endif /* SIGPIPE */
 133
 134 #if !defined (SIGALRM)
 135 #  define SIGALRM 0
 136 #endif /* SIGALRM */
 137
 138 #if !defined (SIG_DFL)
 139 #  define SIG_DFL ((__sighandler_t) 0)
 140 #endif /* SIG_DFL */
 141
 142 #if !defined (SIG_IGN)
 143 #  define SIG_IGN ((__sighandler_t) 1)     /* ignore signal */
 144 #endif /* SIG_IGN */
 145
 146 #if !defined (SIG_ERR)
 147 #  define SIG_ERR ((__sighandler_t) -1)    /* error return from signal */
 148 #endif /* SIG_ERR */
 149
 150 // These are used by the <ACE_IPC_SAP::enable> and
 151 // <ACE_IPC_SAP::disable> methods.  They must be unique and cannot
 152 // conflict with the value of <ACE_NONBLOCK>.  We make the numbers
 153 // negative here so they won't conflict with other values like SIGIO,
 154 // etc.
 155 # define ACE_SIGIO -1
 156 # define ACE_SIGURG -2
 157 # define ACE_CLOEXEC -3
 158
 159 #if defined (ACE_VXWORKS)
 160 #  define ACE_NSIG (_NSIGS + 1)
 161 #elif defined (__Lynx__) || defined (ACE_HAS_RTEMS)
 162 #  define ACE_NSIG (NSIG + 1)
 163 #else
 164    // All other platforms set NSIG to one greater than the
 165    // highest-numbered signal.
 166 #  define ACE_NSIG NSIG
 167 #endif /* __Lynx__ */
 168
 169 #if defined (ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES)
 170    // Prototypes for both signal() and struct sigaction are consistent..
 171   typedef void (*ACE_SignalHandler)(int);
 172   typedef void (*ACE_SignalHandlerV)(int);
 173 #elif defined (ACE_HAS_LYNXOS_SIGNALS) || defined (ACE_HAS_TANDEM_SIGNALS)
 174    typedef void (*ACE_SignalHandler)(...);
 175    typedef void (*ACE_SignalHandlerV)(...);
 176 #elif defined (ACE_HAS_SVR4_SIGNAL_T)
 177    // SVR4 Signals are inconsistent (e.g., see struct sigaction)..
 178    typedef void (*ACE_SignalHandler)(int);
 179    typedef void (*ACE_SignalHandlerV)(void);
 180 #elif defined (ACE_WIN32)
 181    typedef void (__cdecl *ACE_SignalHandler)(int);
 182    typedef void (__cdecl *ACE_SignalHandlerV)(int);
 183 #elif defined (ACE_HAS_UNIXWARE_SVR4_SIGNAL_T)
 184    typedef void (*ACE_SignalHandler)(int);
 185    typedef void (*ACE_SignalHandlerV)(...);
 186 #elif defined (INTEGRITY)
 187    typedef void (*ACE_SignalHandler)();
 188    typedef void (*ACE_SignalHandlerV)(int);
 189 #elif defined (ACE_HAS_RTEMS)
 190    typedef void (*ACE_SignalHandler)();
 191    typedef void (*ACE_SignalHandlerV)();
 192 #else /* This is necessary for some older broken version of cfront */
 193 #  if defined (SIG_PF)
 194 #    define ACE_SignalHandler SIG_PF
 195 #  else
 196      typedef void (*ACE_SignalHandler)(int);
 197 #  endif /* SIG_PF */
 198    typedef void (*ACE_SignalHandlerV)(...);
 199 #endif /* ACE_HAS_CONSISTENT_SIGNAL_PROTOTYPES */
 200
 201 #if defined (ACE_LACKS_SIGACTION)
 202    struct sigaction
 203    {
 204      int sa_flags;
 205      ACE_SignalHandlerV sa_handler;
 206      sigset_t sa_mask;
 207    };
 208 #endif /* ACE_LACKS_SIGACTION */
 209
 210 // Defining POSIX4 real-time signal range.
 211 #if defined(ACE_HAS_POSIX_REALTIME_SIGNALS)
 212 #  define ACE_SIGRTMIN SIGRTMIN
 213 #  define ACE_SIGRTMAX SIGRTMAX
 214 #else /* !ACE_HAS_POSIX_REALTIME_SIGNALS */
 215 #  ifndef ACE_SIGRTMIN
 216 #    define ACE_SIGRTMIN 0
 217 #  endif /* ACE_SIGRTMIN */
 218 #  ifndef ACE_SIGRTMAX
 219 #    define ACE_SIGRTMAX 0
 220 #  endif /* ACE_SIGRTMAX */
 221 #endif /* ACE_HAS_POSIX_REALTIME_SIGNALS */
 222
 223 #if defined (DIGITAL_UNIX)
 224    // sigwait is yet another macro on Digital UNIX 4.0, just causing
 225    // trouble when introducing member functions with the same name.
 226    // Thanks to Thilo Kielmann" <kielmann@informatik.uni-siegen.de> for
 227    // this fix.
 228 #  if defined  (__DECCXX_VER)
 229 #    undef sigwait
 230      // cxx on Digital Unix 4.0 needs this declaration.  With it,
 231      // <::_Psigwait> works with cxx -pthread.  g++ does _not_ need
 232      // it.
 233      int _Psigwait __((const sigset_t *set, int *sig));
 234 #  endif /* __DECCXX_VER */
 235 #elif !defined (ACE_HAS_SIGWAIT)
 236 #  if defined(ACE_HAS_RTEMS)
 237      int sigwait (const sigset_t *set, int *sig);
 238 #  else
 239      int sigwait (sigset_t *set);
 240 #  endif /* ACE_HAS_RTEMS */
 241 #endif /* ! DIGITAL_UNIX && ! ACE_HAS_SIGWAIT */
 242
 243 #if !defined (ACE_HAS_PTHREAD_SIGMASK_PROTOTYPE)
 244   int pthread_sigmask(int, const sigset_t *, sigset_t *);
 245 #endif /*!ACE_HAS_PTHREAD_SIGMASK_PROTOTYPE */
 246
 247 #ifdef __cplusplus
 248 }
 249 #endif /* __cplusplus */
 250
 251 #include "ace/os_include/os_ucontext.h"
 252
 253 #include /**/ "ace/post.h"
 254 #endif /* ACE_OS_INCLUDE_OS_SIGNAL_H */