123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122 |
- /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
-
- // -=- LogWriter.h - The Log writer class.
-
- #ifndef __RFB_LOG_WRITER_H__
- #define __RFB_LOG_WRITER_H__
-
- #include <stdarg.h>
- #include <rfb/Logger.h>
- #include <rfb/Configuration.h>
-
- #ifdef __GNUC__
- # define __printf_attr(a, b) __attribute__((__format__ (__printf__, a, b)))
- #else
- # define __printf_attr(a, b)
- #endif // __GNUC__
-
- // Each log writer instance has a unique textual name,
- // and is attached to a particular Log instance and
- // is assigned a particular log level.
-
- #define DEF_LOGFUNCTION(name, level) \
- inline void v##name(const char* fmt, va_list ap) __printf_attr(2, 0) { \
- if (m_log && (level <= m_level)) \
- m_log->write(level, m_name, fmt, ap); \
- } \
- inline void name(const char* fmt, ...) __printf_attr(2, 3) { \
- if (m_log && (level <= m_level)) { \
- va_list ap; va_start(ap, fmt); \
- m_log->write(level, m_name, fmt, ap);\
- va_end(ap); \
- } \
- }
-
- namespace rfb {
-
- class LogWriter;
-
- class LogWriter {
- public:
- LogWriter(const char* name);
- ~LogWriter();
-
- const char *getName() {return m_name;}
-
- void setLog(Logger *logger);
- void setLevel(int level);
- int getLevel(void) { return m_level; }
-
- inline void write(int level, const char* format, ...) __printf_attr(3, 4) {
- if (m_log && (level <= m_level)) {
- va_list ap;
- va_start(ap, format);
- m_log->write(level, m_name, format, ap);
- va_end(ap);
- }
- }
-
- static const int LEVEL_ERROR = 0;
- static const int LEVEL_STATUS = 10;
- static const int LEVEL_INFO = 30;
- static const int LEVEL_DEBUG = 100;
-
- DEF_LOGFUNCTION(error, LEVEL_ERROR)
- DEF_LOGFUNCTION(status, LEVEL_STATUS)
- DEF_LOGFUNCTION(info, LEVEL_INFO)
- DEF_LOGFUNCTION(debug, LEVEL_DEBUG)
-
- // -=- DIAGNOSTIC & HELPER ROUTINES
-
- static void listLogWriters(int width=79);
-
- // -=- CLASS FIELDS & FUNCTIONS
-
- static LogWriter* log_writers;
-
- static LogWriter* getLogWriter(const char* name);
-
- static bool setLogParams(const char* params);
-
- private:
- const char* m_name;
- int m_level;
- Logger* m_log;
- LogWriter* m_next;
- };
-
- class LogParameter : public StringParameter {
- public:
- LogParameter();
- virtual bool setParam(const char* v);
-
- // Call this to set a suitable default value.
- // Can't use the normal default mechanism for
- // this because there is no guarantee on C++
- // constructor ordering - some LogWriters may
- // not exist when LogParameter gets constructed.
- // NB: The default value must exist for the
- // lifetime of the process!
- void setDefault(const char* v);
- };
- extern LogParameter logParams;
-
- };
-
- #endif // __RFB_LOG_WRITER_H__
|