// $Id$
//
-// 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.
+/** \file
+ \brief Exception public header */
+
#ifndef HH_Exception_
#define HH_Exception_ 1
// Custom includes
#include <exception>
#include <string>
+#include <boost/preprocessor/repeat.hpp>
+#include <boost/preprocessor/cat.hpp>
//#include "Exception.mpp"
///////////////////////////////hh.p////////////////////////////////////////
-namespace satcom {
-namespace lib {
+namespace senf {
+
+ /** \brief Exception handling standard UNIX errors (errno)
+
+ This exception is thrown to signal generic errno failures.
+
+ \todo make where and err accessors and make the member variables private
+
+ \idea Add a template class derived from SystemException which takes the error number as a
+ numeric argument. This allows catching specific errno conditions: ErrnoException<EPIPE> etc.
- struct SystemException : public std::exception
+ \idea Add a generic error thrower which takes the origin string and errno value as an
+ argument and will throw a corresponding template class instance. This would just be a big
+ switch statement containing all possible errno values, probably created using some macro
+ meta-programming.
+ */
+ class SystemException : public std::exception
{
- explicit SystemException(int err_) : where(0), err(err_) { init(); }
- SystemException(char const * where_, int err_) : where(where_), err(err_) { init(); }
+ public:
+ SystemException(); ///< SystemException without error location infor
+ /**< The error code is taken from the current value of the
+ global 'errno' variable */
+
+ explicit SystemException(int code); ///< SystemException without error location info
+ /**< \param[in] code error number (the errno value) */
+
+ explicit SystemException(char const * where); ///< SystemException with error location info
+ /**< The error code is taken from the current value of the
+ global 'errno' variable
+ \param[in] where description of error origin */
+
+ SystemException(char const * where, int code); ///< SystemException with error location info
+ /**< \param[in] where description of error origin
+ \param[in] code error number (the errno value) */
+
+ virtual char const * what() const throw(); ///< Return verbose error description
- virtual char const * what() const throw();
+ char const * where() const; ///< Error origin
+ int code() const; ///< Error code (errno number)
+ char const * description() const; ///< Error description (strerror() value)
- char const * where;
- int err;
+ bool anyOf(int c0, int c1=0, int c2=0, int c3=0, int c4=0, int c5=0,
+ int c6=0, int c7=0, int c8=0, int c9=0);
+
+ virtual ~SystemException() throw();
- virtual ~SystemException() throw() {}
private:
void init();
- std::string buffer_;
+
+ char const * const where_;
+ int const code_;
+ std::string buffer_;
};
-
-}}
+
+ template <int Code>
+ class ErrnoException : public SystemException
+ {
+ public:
+ static int const fixed_code = Code;
+
+ ErrnoException();
+ explicit ErrnoException(char const * where);
+ };
+
+ void throwErrno();
+ void throwErrno(char const * where);
+ void throwErrno(int code);
+ void throwErrno(char const * where, int code);
+
+ enum NoThrow_t { nothrow };
+
+}
///////////////////////////////hh.e////////////////////////////////////////
-//#include "Exception.cci"
+#include "Exception.cci"
//#include "Exception.ct"
-//#include "Exception.cti"
+#include "Exception.cti"
#endif
\f
// Local Variables:
// mode: c++
-// c-file-style: "satcom"
+// fill-column: 100
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// comment-column: 40
// End: