// $Id$
//
-// Copyright (C) 2006
+// Copyright (C) 2006
// Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
// Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
// Stefan Bund <stefan.bund@fokus.fraunhofer.de>
// Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-// Definition of non-inline non-template functions
+/** \file
+ \brief Exception non-inline non-template implementation */
#include "Exception.hh"
//#include "Exception.ih"
prefix_ void senf::SystemException::init()
{
+ // We normallyl don't want to consume memory in an exception,
+ // however all other solutions to format the message are terribly
+ // ugly (since thay must use a static and shared buffer ...)
std::stringstream s;
- if (where)
- s << where << ": ";
- s << "(" << err << ") " << std::strerror(err);
+ if (where_)
+ s << where_ << ": ";
+ s << "(" << code_ << ") " << description();
buffer_ = s.str();
}
-prefix_ char const * senf::SystemException::what()
- const throw()
+prefix_ void senf::throwErrno(char const * where, int code)
{
- return buffer_.c_str();
+ switch (code) {
+
+ // BOOST_PP_REPEAT is limited to 256 repetitions. The max errno value I found in any header file
+ // was somewhere around 530 or so. I assume going to 1024 will be good enough. This explicit
+ // code will be optimized into a jump table by g++ (which is more efficient than trying to do
+ // the table oneself)
+
+# define ExceptionCase(z, n, data) case n: throw ErrnoException<n>(where);
+ BOOST_PP_REPEAT(256, ExceptionCase, _) ;
+# undef ExceptionCase
+
+# define ExceptionCase(z, n, data) case 256+n: throw ErrnoException<256+n>(where);
+ BOOST_PP_REPEAT(256, ExceptionCase, _) ;
+# undef ExceptionCase
+
+# define ExceptionCase(z, n, data) case 512+n: throw ErrnoException<512+n>(where);
+ BOOST_PP_REPEAT(256, ExceptionCase, _) ;
+# undef ExceptionCase
+
+# define ExceptionCase(z, n, data) case 768+n: throw ErrnoException<768+n>(where);
+ BOOST_PP_REPEAT(256, ExceptionCase, _) ;
+# undef ExceptionCase
+
+ default:
+ throw SystemException(where, code);
+ }
}
///////////////////////////////cc.e////////////////////////////////////////
\f
// Local Variables:
// mode: c++
+// fill-column: 100
// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// comment-column: 40
// End: