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FXSystemLogger.h

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00001 /********************************************************************************
00002 *                                                                               *
00003 *                  Unix Syslog interface                                        *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 2003 by Mathew Robertson.   All Rights Reserved.                *
00007 *********************************************************************************
00008 * This library is free software; you can redistribute it and/or                 *
00009 * modify it under the terms of the GNU Lesser General Public                    *
00010 * License as published by the Free Software Foundation; either                  *
00011 * version 2.1 of the License, or (at your option) any later version.            *
00012 *                                                                               *
00013 * This library is distributed in the hope that it will be useful,               *
00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of                *
00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU             *
00016 * Lesser General Public License for more details.                               *
00017 *                                                                               *
00018 * You should have received a copy of the GNU Lesser General Public              *
00019 * License along with this library; if not, write to the Free Software           *
00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.    *
00021 *********************************************************************************/
00022 #ifndef FXSYSTEMLOGGER_H
00023 #define FXSYSTEMLOGGER_H
00024 
00025 #ifndef FXOBJECT_H
00026 #include <fox/FXObject.h>
00027 using namespace FX;
00028 #endif
00029 namespace FXEX {
00030 
00031 /// a simple set of defines used to simplify the system logging syntax
00032 /// - takes FXString's, FXchar*'s or FXException's
00033 #ifndef NDEBUG
00034 #  define SYSLOG(msg) FXSystemLogger::instance().log((msg))
00035 #  define SYSALERT(msg) FXSystemLogger::instance().alert(FXSystemLogger::PRI_ALERT,(msg))
00036 #  define SYSWRN(msg) FXSystemLogger::instance().warn(FXSystemLogger::PRI_WARNING,(msg))
00037 #  define SYSERR(msg) FXSystemLogger::instance().error(FXSystemLogger::PRI_ERROR,(msg))
00038 #else
00039 #  define SYSLOG(msg)
00040 #  define SYSALERT(msg)
00041 #  define SYSWRN(msg)
00042 #  define SYSERR(msg)
00043 #endif
00044 
00045 /**
00046  * Generic interface to operating system logging facility
00047  * This object is a singleton
00048  */
00049 class FXAPI FXSystemLogger : public FXObject {
00050   FXDECLARE(FXSystemLogger)
00051 
00052 private:
00053   static FXSystemLogger* thislog;   // self reference indicator
00054 
00055 public:
00056   static const FXint PRI_ERROR;
00057   static const FXint PRI_WARNING;
00058   static const FXint PRI_NORMAL;
00059   static const FXint PRI_DEBUG;
00060 
00061 public:
00062   enum {
00063     ID_SYSLOG,
00064     ID_LAST
00065     };
00066 
00067 public:
00068   long onCmdLog(FXObject*,FXSelector,void*);
00069   long onCmdSetValue(FXObject*,FXSelector,void*);
00070   long onCmdSetIntValue(FXObject*,FXSelector,void*);
00071   long onCmdSetStringValue(FXObject*,FXSelector,void*);
00072 
00073 public:
00074   /// Give me access to the system log
00075   FXSystemLogger();
00076 
00077   /// Use the current instance
00078   static FXSystemLogger& instance();
00079 
00080   /// Log to syslog
00081   void log(const FXint priority, const FXchar* msg, ...);
00082   void log(const FXint priority, const FXString& msg);
00083   void log(const FXString& msg);
00084   void warning(const FXString& msg);
00085   void error(const FXString& msg);
00086   void log(const FXException* e);
00087   void log(const FXExtendedException* e);
00088 
00089   /// done
00090   virtual ~FXSystemLogger();
00091   };
00092 
00093 } // namespace FXEX
00094 #endif // FXSYSTEMLOGGER_H