UnixSignalException.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.7.0
// ----------------------------------------------------------------------------
// pcl/UnixSignalException.h - Released 2024-06-18T15:48:54Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
// PCL is a multiplatform C++ framework for development of PixInsight modules.
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// ----------------------------------------------------------------------------
 
#ifndef __PCL_UnixSignalException_h
#define __PCL_UnixSignalException_h
 
 
#if defined( __PCL_WINDOWS ) || !defined( __PCL_LINUX ) && !defined( __PCL_FREEBSD ) && !defined( __PCL_MACOSX )
#  error UnixSignalException can only be used on Linux, FreeBSD and macOS platforms.
#endif
 
#include <pcl/Defs.h>
 
#include <pcl/Exception.h>
 
#include <signal.h>
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
class PCL_CLASS UnixSignalException : public pcl::Exception
{
public:
 
   UnixSignalException( int signal, const IsoString& details = IsoString() )
      : m_signal( signal )
      , m_details( details )
   {
   }
 
   UnixSignalException( const UnixSignalException& ) = default;
 
   int SignalNumber() const
   {
      return m_signal;
   }
 
   const IsoString& Details() const
   {
      return m_details;
   }
 
   String Message() const override
   {
      return "Undefined signal";
   }
 
   String FormatInfo() const override
   {
      String info = String().Format( "Critical signal caught (%d): ", SignalNumber() ) + Message();
      if ( !m_details.IsEmpty() )
      {
         info.Append( '\n' );
         info.Append( m_details );
      }
      return info;
   }
 
   String Caption() const override
   {
      return "PCL Unix Signal Handler";
   }
 
   void Show() const override;
 
   static void Initialize();
 
protected:
 
   int       m_signal;  // signal number
   IsoString m_details; // backtrace information
};
 
// ----------------------------------------------------------------------------
 
#define DECLARE_UNIX_SIGNAL_EXCEPTION( className, sigNum, message )           \
   class PCL_CLASS className : public pcl::UnixSignalException                \
   {                                                                          \
   public:                                                                    \
      className( const IsoString& details = IsoString() ) :                   \
         pcl::UnixSignalException( sigNum, details )                          \
      {                                                                       \
      }                                                                       \
      className( const className& ) = default;                                \
      String Message() const override                                         \
      {                                                                       \
         return message;                                                      \
      }                                                                       \
   }
 
// ----------------------------------------------------------------------------
 
DECLARE_UNIX_SIGNAL_EXCEPTION( EUnixSegmentationViolation, SIGSEGV,
                               "Segmentation violation" );
 
DECLARE_UNIX_SIGNAL_EXCEPTION( EUnixBusError, SIGBUS,
                               "Bus error" );
 
DECLARE_UNIX_SIGNAL_EXCEPTION( EUnixFloatingPointException, SIGFPE,
                               "Floating point exception" );
 
DECLARE_UNIX_SIGNAL_EXCEPTION( EUnixIllegalInstructionException, SIGILL,
                               "Illegal instruction" );
 
DECLARE_UNIX_SIGNAL_EXCEPTION( EUnixIBrokenPipeException, SIGPIPE,
                               "Broken pipe" );
 
// ----------------------------------------------------------------------------
 
#undef DECLARE_UNIX_SIGNAL_EXCEPTION
 
// ----------------------------------------------------------------------------
 
} // pcl
 
#endif   // __PCL_UnixSignalException_h
 
// ----------------------------------------------------------------------------
// EOF pcl/UnixSignalException.h - Released 2024-06-18T15:48:54Z