gearman/libtest/exception.hpp

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 *  Data Differential YATL (i.e. libtest)  library
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#pragma once

namespace libtest {

class exception : public std::exception
{
public:
  exception(const char *file, int line, const char *func);

  exception( const exception& );

  exception& operator=(const exception&) = delete;

  virtual ~exception() throw();

  virtual const char* what() const throw()
  {
    if (_error_message)
    {
      return _error_message;
    }

    return "";
  }

  void what(size_t, const char*);

  size_t length() const
  {
    return _error_message_size;
  }

  int line() const
  {
    return _line;
  }

  const char* file() const
  {
    return _file;
  }

  const char* func() const
  {
    return _func;
  }

protected:
  void init(va_list);

private:
  int _line;
  const char*  _file;
  const char* _func;
  char* _error_message;
  size_t _error_message_size;
};

} // namespace libtest