Add thread safe function for server time logging prefix

src/utils/log.cpp

@@ -165,9 +165,8 @@ void Log::printMessage(int level, const char *component, const char *format,
     if (NetworkConfig::get()->isNetworking() &&
         NetworkConfig::get()->isServer())
     {
-        std::time_t result = std::time(nullptr);
         index += snprintf (line + index, remaining,
-            "%.24s [%s] %s: ", std::asctime(std::localtime(&result)),
+            "%s [%s] %s: ", StkTime::getLogTime().c_str(),
             names[level], component);
     }
     else

src/utils/time.cpp

@@ -42,6 +42,26 @@ void StkTime::init()
     m_timer->grab();
 }   // init
 
+// ----------------------------------------------------------------------------
+/** Get the time in string for game server logging prefix (thread-safe)*/
+std::string StkTime::getLogTime()
+{
+    time_t time_now = 0;
+    time(&time_now);
+    std::tm timeptr = {};
+#ifdef WIN32
+    localtime_s(&timeptr, &time_now);
+#else
+    localtime_r(&time_now, &timeptr);
+#endif
+    std::string result;
+    result.resize(64);
+    strftime(&result[0], 64, "%a %b %d %H:%M:%S %Y", &timeptr);
+    size_t len = strlen(result.c_str());
+    result.resize(len);
+    return result;
+}   // getLogTime
+
 // ----------------------------------------------------------------------------
 
 /** Converts the time in this object to a human readable string. */

src/utils/time.hpp

@@ -55,6 +55,10 @@ public:
     static void init();
     static void getDate(int *day=NULL, int *month=NULL, int *year=NULL);
 
+    // ------------------------------------------------------------------------
+    /** Get the time in string for game server logging prefix (thread-safe)*/
+    static std::string getLogTime();
+    // ------------------------------------------------------------------------
     /** Converts the time in this object to a human readable string. */
     static std::string toString(const TimeType &tt);
     // ------------------------------------------------------------------------