+#ifndef STG_LOGGER_H
+#define STG_LOGGER_H
+
+#include <pthread.h>
+
+#include <string>
+
+#include "stg/noncopyable.h"
+
+const char * LogDate(time_t t);
+//-----------------------------------------------------------------------------
+class STG_LOGGER;
+STG_LOGGER & GetStgLogger();
+//-----------------------------------------------------------------------------
+class STG_LOGGER_LOCKER : private NONCOPYABLE
+{
+public:
+ STG_LOGGER_LOCKER(pthread_mutex_t * m) : mutex(m) { pthread_mutex_lock(mutex); };
+ ~STG_LOGGER_LOCKER() { pthread_mutex_unlock(mutex); };
+private:
+ pthread_mutex_t * mutex;
+};
+//-----------------------------------------------------------------------------
+class STG_LOGGER
+{
+friend STG_LOGGER & GetStgLogger();
+
+public:
+ ~STG_LOGGER();
+ void SetLogFileName(const std::string & fn);
+ void operator()(const char * fmt, ...);
+
+private:
+ STG_LOGGER();
+ const char * LogDate(time_t t);
+
+ std::string fileName;
+ pthread_mutex_t mutex;
+};
+//-----------------------------------------------------------------------------
+
+#endif //STG_LOGGER_H