Initial commit

2020-09-20 12:16:44 +00:00
parent 09a4460ddb
commit 408c005d3e
839 changed files with 190481 additions and 0 deletions
--- a/common/rfb/LogWriter.h
+++ b/common/rfb/LogWriter.h
@@ -0,0 +1,122 @@
+/* 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__