thodg/cgminer/lib/sig-handler.h

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• Hash : 8ec2dcc9
  Author :
  Date : 2011-07-13T16:49:44
  

  Mingw suseconds_t and sigaction fixes. Added typedef for suseconds_t for systems without this defined. Added signal/sigaction from gnulib because mingw is missing these.

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• lib/sig-handler.h

• /* Convenience declarations when working with <signal.h>.
  
     Copyright (C) 2008-2011 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  #ifndef _GL_SIG_HANDLER_H
  #define _GL_SIG_HANDLER_H
  
  #include <signal.h>
  
  /* Convenience type when working with signal handlers.  */
  typedef void (*sa_handler_t) (int);
  
  /* Return the handler of a signal, as a sa_handler_t value regardless
     of its true type.  The resulting function can be compared to
     special values like SIG_IGN but it is not portable to call it.  */
  static inline sa_handler_t
  get_handler (struct sigaction const *a)
  {
  #ifdef SA_SIGINFO
    /* POSIX says that special values like SIG_IGN can only occur when
       action.sa_flags does not contain SA_SIGINFO.  But in Linux 2.4,
       for example, sa_sigaction and sa_handler are aliases and a signal
       is ignored if sa_sigaction (after casting) equals SIG_IGN.  So
       use (and cast) sa_sigaction in that case.  */
    if (a->sa_flags & SA_SIGINFO)
      return (sa_handler_t) a->sa_sigaction;
  #endif
    return a->sa_handler;
  }
  
  #endif /* _GL_SIG_HANDLER_H */
  

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