Added compile time option to turn off thread id (#define SPDLOG_NO_THREAD_ID in common.h)

include/spdlog/common.h

@@ -44,6 +44,10 @@
 //#define SPDLOG_CLOCK_COARSE
 //#endif
 
+
+// uncomment if thread id logging is needed - to gain few nanos
+// #define SPDLOG_NO_THREAD_ID
+//
 namespace spdlog
 {
 

include/spdlog/details/line_logger.h

@@ -65,8 +65,6 @@ public:
             _log_msg.logger_name = _callback_logger->name();
             _log_msg.time = os::now();
             _log_msg.thread_id = os::thread_id();
-
-
             _callback_logger->_log_msg(_log_msg);
         }
     }

include/spdlog/details/os.h

@@ -175,6 +175,10 @@ inline int utc_minutes_offset(const std::tm& tm = details::os::localtime())
 inline size_t thread_id()
 {
 
+#ifdef SPDLOG_NO_THREAD_ID
+    return 0;
+#else
+
 #ifdef _WIN32
     return ::GetCurrentThreadId();
 #elif __linux__
@@ -182,7 +186,7 @@ inline size_t thread_id()
 #else
     return (uint64_t) pthread_self();
 #endif
-
+#endif //SPDLOG_NO_THREAD_ID
 }
 
 } //os