pico/osdep/signals.h

   1 /*
   2  * $Id: signals.h 761 2007-10-23 22:35:18Z hubert@u.washington.edu $
   3  *
   4  * ========================================================================
   5  * Copyright 2006 University of Washington
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * ========================================================================
  14  */
  15
  16
  17 #ifndef PICO_OSDEP_SIGNALS_INCLUDED
  18 #define PICO_OSDEP_SIGNALS_INCLUDED
  19
  20
  21 /*
  22  * [Re]Define signal functions as needed...
  23  */
  24 #ifdef  POSIX_SIGNALS
  25 /*
  26  * Redefine signal call to our wrapper of POSIX sigaction
  27  */
  28 #define signal(SIG,ACT)         posix_signal(SIG,ACT)
  29 #define our_sigunblock(SIG)     posix_sigunblock(SIG)
  30 #else   /* !POSIX_SIGNALS */
  31 #ifdef  SYSV_SIGNALS
  32 /*
  33  * Redefine signal calls to SYSV style call.
  34  */
  35 #define signal(SIG,ACT)         sigset(SIG,ACT)
  36 #define our_sigunblock(SIG)     sigrelse(SIG)
  37 #else   /* !SYSV_SIGNALS */
  38 #ifdef  _WINDOWS
  39 #define our_sigunblock(SIG)
  40 #else   /* !_WINDOWS */
  41 /*
  42  * Good ol' BSD signals.
  43  */
  44 #define our_sigunblock(SIG)
  45 #endif /* !_WINDOWS */
  46 #endif /* !SYSV_SIGNALS */
  47 #endif /* !POSIX_SIGNALS */
  48
  49
  50
  51 /* exported prototypes */
  52 void            picosigs(void);
  53 #if     defined(SIGWINCH) && defined(TIOCGWINSZ)
  54 RETSIGTYPE      winch_handler(int);
  55 #endif
  56
  57 #ifdef POSIX_SIGNALS
  58 void            (*posix_signal(int, RETSIGTYPE (*)()))(int);
  59 int             posix_sigunblock(int);
  60 #endif
  61
  62 #endif /* PICO_OSDEP_SIGNALS_INCLUDED */