X-Git-Url: http://g0dil.de/git?a=blobdiff_plain;f=Utils%2FException.hh;h=e673ab57741f866e4237683bb73a198a470dac5e;hb=47368f306a577d1e46df69a7f729bd3893cbe5e7;hp=7d5dbf1e557f85b83c7ef4ea44985952f784bd14;hpb=ac6a813d9d99f7add4e13aff7a4bcd314d5604a6;p=senf.git

diff --git a/Utils/Exception.hh b/Utils/Exception.hh
index 7d5dbf1..e673ab5 100644
--- a/Utils/Exception.hh
+++ b/Utils/Exception.hh
@@ -1,6 +1,6 @@
 // $Id$
 //
-// Copyright (C) 2006 
+// Copyright (C) 2006
 // Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
 // Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
 //     Stefan Bund <stefan.bund@fokus.fraunhofer.de>
@@ -20,6 +20,9 @@
 // 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
 
@@ -32,27 +35,48 @@
 
 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 vars private
 
-    struct SystemException : public std::exception
+        \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.
+
+        \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 metaprogramming.
+     */
+    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:
+        explicit SystemException(int err); ///< SystemException without error lokus info
+                                        /**< \param[in] err error number (the errno value) */
+        SystemException(char const * where, int err); ///< SystemException with error lokus info
+                                        /**< \param[in] where description of error origin
+                                             \param[in] err error number (the errno value) */
 
-        virtual char const * what() const throw();
+        virtual char const * what() const throw(); ///< Return verbose error description
 
-        char const * where;
-        int err;
+        char const * where; ///< Error origin
+        int err; ///< Error number
 
-        virtual ~SystemException() throw() {}
+        virtual ~SystemException() throw();
     private:
         void init();
-	std::string buffer_;
+        std::string buffer_;
     };
-    
+
+    enum NoThrow_t { nothrow };
+
 }
 
 ///////////////////////////////hh.e////////////////////////////////////////
-//#include "Exception.cci"
+#include "Exception.cci"
 //#include "Exception.ct"
 //#include "Exception.cti"
 #endif
@@ -60,5 +84,10 @@ namespace senf {
 
 // 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: