-#define LOG_FATAL 0x0001
-#define LOG_DEBUG 0x0002
-#define LOG_WARN 0x0004
-#define LOG_LOG 0x0008
-#define LOG_ERRNO 0x0010 /* append strerror to message */
-#define LOG_FILE 0x0020
-#define LOG_APP 0x0040 /* For application level events such as new-connection */
-#define LOG_MALLOC 0x0080 /* debugging mallocs */
-#define LOG_NOTIME 0x0100 /* do not output date and time */
-#define LOG_APP2 0x0200 /* For application-level events, such as api calls */
-#define LOG_APP3 0x0400 /* For more application-level events */
+/** \brief log level: fatal */
+#define YLOG_FATAL 0x00000001
+/** \brief log level: debugging */
+#define YLOG_DEBUG 0x00000002
+/** \brief log level: warning */
+#define YLOG_WARN 0x00000004
+/** \brief log level: log (regular) */
+#define YLOG_LOG 0x00000008
+/** \brief log level: append system error message */
+#define YLOG_ERRNO 0x00000010
+/** \brief log level: append thread Id */
+#define YLOG_TID 0x00000020
+/** \brief log level: application */
+#define YLOG_APP 0x00000040
+/** \brief log level: malloc debug */
+#define YLOG_MALLOC 0x00000080
+/** \brief log level: do not output date and time */
+#define YLOG_NOTIME 0x00000100
+/** \brief log level: application 2 */
+#define YLOG_APP2 0x00000200
+/** \brief log level: application 3 */
+#define YLOG_APP3 0x00000400
+/** \brief log level: flush */
+#define YLOG_FLUSH 0x00000800
+/** \brief dynamic log level start */
+#define YLOG_LOGLVL 0x00001000 /* log when modules query log levels */
+ /* this has to be a hard-coded bit, not to loop*/
+
+#define YLOG_ALL (0xffff&~YLOG_MALLOC&~YLOG_NOTIME)
+
+/** \brief default log level */
+#define YLOG_DEFAULT_LEVEL \
+ (YLOG_FATAL | YLOG_ERRNO | YLOG_LOG | YLOG_WARN | YLOG_FLUSH)
+/* not having flush here confuses Solaris users, who won't see any logs until
+ * (and if) the program exits normally */
+
+/** \brief last bit for regular log bits . Rest are dynamic */
+#define YLOG_LAST_BIT YLOG_LOGLVL
+
+/** \brief sets level, prefix and filename for logging
+ \param level log level
+ \param prefix log message prefix
+ \param fname filename