Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2006-2014, Visualization and Multimedia Lab,
       3             :  *                          University of Zurich <http://vmml.ifi.uzh.ch>,
       4             :  *                          Eyescale Software GmbH,
       5             :  *                          Blue Brain Project, EPFL
       6             :  *
       7             :  * This file is part of VMMLib <https://github.com/VMML/vmmlib/>
       8             :  *
       9             :  * Redistribution and use in source and binary forms, with or without
      10             :  * modification, are permitted provided that the following conditions are met:
      11             :  *
      12             :  * Redistributions of source code must retain the above copyright notice, this
      13             :  * list of conditions and the following disclaimer.  Redistributions in binary
      14             :  * form must reproduce the above copyright notice, this list of conditions and
      15             :  * the following disclaimer in the documentation and/or other materials provided
      16             :  * with the distribution.  Neither the name of the Visualization and Multimedia
      17             :  * Lab, University of Zurich nor the names of its contributors may be used to
      18             :  * endorse or promote products derived from this software without specific prior
      19             :  * written permission.
      20             :  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
      21             :  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      22             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      23             :  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
      24             :  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
      25             :  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
      26             :  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
      27             :  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
      28             :  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      29             :  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
      30             :  * POSSIBILITY OF SUCH DAMAGE.
      31             :  */
      32             : #ifndef __VMMLIB__EXCEPTION__HPP__
      33             : #define __VMMLIB__EXCEPTION__HPP__
      34             : 
      35             : #include <iostream>
      36             : #include <stdexcept>
      37             : #include <string>
      38             : #include <sstream>
      39             : #include <cassert>
      40             : 
      41             : #include <vmmlib/vmmlib_config.hpp>
      42             : 
      43             : 
      44             : #define VMMLIB_HERE ( except_here( __FILE__, __LINE__ ) )
      45             : 
      46             : #ifdef VMMLIB_THROW_EXCEPTIONS
      47             : #define VMMLIB_ERROR( desc, here ) throw( exception( desc, here ) )
      48             : #else
      49             : #define VMMLIB_ERROR( desc, here ) error_noexcept( desc, here )
      50             : #endif
      51             : 
      52             : 
      53             : namespace vmml
      54             : {
      55             : 
      56             : struct except_here
      57             : {
      58           0 :     except_here( const char* file_, int line_ ) : file( file_ ), line( line_ ) {}
      59             :     const char*     file;
      60             :     int             line;
      61             : }; // struct except_here
      62             : 
      63             : 
      64             : inline void
      65             : error_noexcept( const std::string& desc, const except_here& here )
      66             : {
      67             :     std::cerr
      68             :         << "vmmlib error at " << here.file << ":" << here.line << "\n"
      69             :         << desc
      70             :         << std::endl;
      71             :     assert( 0 );
      72             : }
      73             : 
      74             : 
      75             : 
      76             : class exception : public std::exception
      77             : {
      78             : public:
      79           0 :     exception( const std::string& desc, const except_here& here )
      80           0 :     {
      81           0 :         std::ostringstream os;
      82           0 :         os << here.file << "(" << here.line << "): - " << desc << std::endl;
      83             :         // cppcheck-suppress useInitializationList
      84           0 :         _description = os.str();
      85           0 :     }
      86             : 
      87           0 :     virtual ~exception() throw() {}
      88             : 
      89           0 :     virtual const char* what() const throw() { return _description.c_str(); }
      90             : 
      91             : protected:
      92             :     std::string _description;
      93             : 
      94             : private:
      95             :     // disallow std ctor
      96             :     exception() {}
      97             :     // disallow assignment operator
      98           0 :     virtual const exception& operator=( const exception& ){ return *this; }
      99             : 
     100             : 
     101             : };
     102             : 
     103             : 
     104             : } // namespace stream_process
     105             : 
     106             : #endif