Added utility stuff

2015-11-20 17:17:29 +01:00
parent 1a8784b4be
commit 381e0fbbab
3 changed files with 130 additions and 0 deletions
@@ -0,0 +1,83 @@
+#ifndef Util_Logging_h__
+#define Util_Logging_h__
+
+#ifdef _WIN32
+// http://stackoverflow.com/a/2282433
+#define __func__ __FUNCTION__
+// http://stackoverflow.com/a/8488201
+#define __BASE_FILE__ \
+	(strrchr(__FILE__, '/') \
+	? strrchr(__FILE__, '/') + 1 \
+	: (strrchr(__FILE__, '\\') \
+	? strrchr(__FILE__, '\\') + 1 \
+	: __FILE__))
+#endif
+
+#include <iostream>
+#include <limits>
+#include <string>
+#include <cstdio>
+#include <stdarg.h>
+
+enum class LogLevel
+{
+	LOG_LEVEL_ERROR,
+	LOG_LEVEL_INFO,
+	LOG_LEVEL_WARNING,
+	LOG_LEVEL_DEBUG
+};
+
+extern _LOG_LEVEL LOG_LEVEL;
+
+const static char* _LOG_LEVEL_PREFIX[] =
+{
+	"EE: ",
+	"",
+	"WW: ",
+	"DD: "
+};
+
+static void _LOG(_LOG_LEVEL logLevel, const char* file, const char* func, unsigned int line, const char* format, ...)
+{
+	if (logLevel > LOG_LEVEL) {
+		return;
+	}
+
+	char* message = nullptr;
+	va_list args;
+
+	va_start(args, format);
+	size_t size = vsnprintf(message, 0, format, args) + 1;
+	va_end(args);
+
+	va_start(args, format);
+	message = new char[size];
+	vsnprintf(message, size, format, args);
+	va_end(args);
+
+	if (logLevel == LOG_LEVEL_ERROR) {
+		std::cerr << file << ":" << line << " " << func << std::endl;
+		std::cerr << _LOG_LEVEL_PREFIX[logLevel] << message << std::endl;
+	} else {
+		std::cout << _LOG_LEVEL_PREFIX[logLevel] << message << std::endl;
+	}
+
+	delete[] message;
+}
+
+#define LOG(logLevel, format, ...) \
+	_LOG(logLevel, __BASE_FILE__, __func__, __LINE__, format, ##__VA_ARGS__)
+
+#define LOG_ERROR(format, ...) \
+	LOG(LOG_LEVEL_ERROR, format, ##__VA_ARGS__)
+
+#define LOG_WARNING(format, ...) \
+	LOG(LOG_LEVEL_WARNING, format, ##__VA_ARGS__)
+
+#define LOG_INFO(format, ...) \
+	LOG(LOG_LEVEL_INFO, format, ##__VA_ARGS__)
+
+#define LOG_DEBUG(format, ...) \
+	LOG(LOG_LEVEL_DEBUG, format, ##__VA_ARGS__)
+
+#endif // Logging_h__