Add function name to logger.

include/logger.hpp

@@ -9,10 +9,10 @@ will print something like
 
 	[0.123 debug myfile.cpp:45] error: 67
 */
-#define DEBUG(format, ...) rack::logger::log(rack::logger::DEBUG_LEVEL, __FILE__, __LINE__, format, ##__VA_ARGS__)
-#define INFO(format, ...) rack::logger::log(rack::logger::INFO_LEVEL, __FILE__, __LINE__, format, ##__VA_ARGS__)
-#define WARN(format, ...) rack::logger::log(rack::logger::WARN_LEVEL, __FILE__, __LINE__, format, ##__VA_ARGS__)
-#define FATAL(format, ...) rack::logger::log(rack::logger::FATAL_LEVEL, __FILE__, __LINE__, format, ##__VA_ARGS__)
+#define DEBUG(format, ...) rack::logger::log(rack::logger::DEBUG_LEVEL, __FILE__, __LINE__, __FUNCTION__, format, ##__VA_ARGS__)
+#define INFO(format, ...) rack::logger::log(rack::logger::INFO_LEVEL, __FILE__, __LINE__, __FUNCTION__, format, ##__VA_ARGS__)
+#define WARN(format, ...) rack::logger::log(rack::logger::WARN_LEVEL, __FILE__, __LINE__, __FUNCTION__, format, ##__VA_ARGS__)
+#define FATAL(format, ...) rack::logger::log(rack::logger::FATAL_LEVEL, __FILE__, __LINE__, __FUNCTION__, format, ##__VA_ARGS__)
 
 
 namespace rack {
@@ -35,7 +35,7 @@ void destroy();
 /** Do not use this function directly. Use the macros above.
 Thread-safe, meaning messages cannot overlap each other in the log.
 */
-void log(Level level, const char* filename, int line, const char* format, ...);
+void log(Level level, const char* filename, int line, const char* func, const char* format, ...);
 /** Returns whether the current log file failed to end properly, due to a possible crash.
 Must be called *before* init().
 */

src/logger.cpp

@@ -52,7 +52,7 @@ static const int levelColors[] = {
 	31
 };
 
-static void logVa(Level level, const char* filename, int line, const char* format, va_list args) {
+static void logVa(Level level, const char* filename, int line, const char* func, const char* format, va_list args) {
 	std::lock_guard<std::mutex> lock(logMutex);
 	if (!outputFile)
 		return;
@@ -61,7 +61,7 @@ static void logVa(Level level, const char* filename, int line, const char* forma
 	double duration = (nowTime - startTime) / 1e9;
 	if (outputFile == stderr)
 		std::fprintf(outputFile, "\x1B[%dm", levelColors[level]);
-	std::fprintf(outputFile, "[%.03f %s %s:%d] ", duration, levelLabels[level], filename, line);
+	std::fprintf(outputFile, "[%.03f %s %s:%d %s] ", duration, levelLabels[level], filename, line, func);
 	if (outputFile == stderr)
 		std::fprintf(outputFile, "\x1B[0m");
 	std::vfprintf(outputFile, format, args);
@@ -69,10 +69,10 @@ static void logVa(Level level, const char* filename, int line, const char* forma
 	std::fflush(outputFile);
 }
 
-void log(Level level, const char* filename, int line, const char* format, ...) {
+void log(Level level, const char* filename, int line, const char* func, const char* format, ...) {
 	va_list args;
 	va_start(args, format);
-	logVa(level, filename, line, format, args);
+	logVa(level, filename, line, func, format, args);
 	va_end(args);
 }