1 files changed, 114 insertions, 0 deletions
diff --git a/common/core/LogWriter.h b/common/core/LogWriter.h
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--- /dev/null
+++ b/common/core/LogWriter.h
@@ -0,0 +1,114 @@
+/* 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 __CORE_LOG_WRITER_H__
+#define __CORE_LOG_WRITER_H__
+
+#include <stdarg.h>
+
+#include <core/Configuration.h>
+#include <core/Logger.h>
+
+// 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) \
+    __attribute__((__format__ (__printf__, 2, 0))) \
+  { \
+    if (m_log && (level <= m_level))        \
+      m_log->write(level, m_name, fmt, ap); \
+  } \
+  inline void name(const char* fmt, ...) \
+    __attribute__((__format__ (__printf__, 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 core {
+
+  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, ...)
+      __attribute__((__format__ (__printf__, 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 StringListParameter {
+  public:
+    LogParameter();
+    bool setParam(const char* v) override;
+    // We explicitly don't inherit setParam(std::list) as we want to
+    // force callers to use the above method to parse the values
+  };
+  extern LogParameter logParams;
+
+};
+
+#endif // __CORE_LOG_WRITER_H__