OW_SignalScope.hpp

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#ifndef OW_SIGNALSCOPE_HPP_INCLUDE_GUARD_
#define OW_SIGNALSCOPE_HPP_INCLUDE_GUARD_
#include "OW_config.h"
#include <signal.h>

// The classes and functions defined in this file are not meant for general
// use, they are internal implementation details.  They may change at any time.

namespace OW_NAMESPACE
{

const int OW_SIGSEGV = SIGSEGV;
const int OW_SIGABRT = SIGABRT;
#ifdef SIGBUS // NetWare doesn't have this signal
const int OW_SIGBUS = SIGBUS;
#endif
const int OW_SIGFPE = SIGFPE;

extern "C" {
typedef void (*sighandler_t)(int);
}

class OW_COMMON_API SignalScope
{
public:
   SignalScope( int sig, sighandler_t handler )
         : m_sig( sig )
   {
#ifndef OW_WIN32
      struct sigaction saNew;
      saNew.sa_handler = handler;
      sigemptyset(&saNew.sa_mask);
      saNew.sa_flags = 0;
      sigaction(m_sig, &saNew, &m_oldHandler);
#endif
   }
   ~SignalScope()
   {
#ifndef OW_WIN32
      sigaction(m_sig, &m_oldHandler, 0);
#endif
   }
private:
   SignalScope(const SignalScope&);
   const SignalScope& operator=(const SignalScope&);
   int m_sig;
#ifndef OW_WIN32
   struct sigaction m_oldHandler;
#endif
};

} // end namespace OW_NAMESPACE

#endif

---