Flush log output for all log messages with at least info level

volkszaehler · Dec 24, 2023 · 5188375 · 5188375
1 parent 7675a10
commit 5188375
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/vzlogger.cpp b/src/vzlogger.cpp
@@ -180,6 +180,10 @@ void print(log_level_t level, const char *format, const char *id, ...) {
 		fprintf(stream, "%-24s", prefix);
 		vfprintf(stream, format, args);
 		fprintf(stream, "\n");
+		if (level <= log_info) {
+			// required for some targets where stdout is redirected (e.g. docker)
+			fflush(stream);
+		}
 		m_log.unlock(); // release mutex
 	}
 	va_end(args);