Move back to C++

2022-07-05 16:03:31 -04:00
1 parent 4755371ffa
commit ce0c399810
@@ -0,0 +1,90 @@
+/**
+ * @file log.hxx
+ * @author Piotr Krygier (everyonencancode@gmail.com)
+ * @brief Logging interfaces
+ * @version 0.1
+ * @date 2022-02-11
+ *
+ * @copyright Copyright (c) 2022
+ *
+ */
+
+#ifndef LOG_H
+#define LOG_H
+
+#include <stdio.h>
+
+/* Controls level of logging. TODO: Move this to cmake or some config */
+#define LOG_LEVEL 6
+
+#define LOG(level, ...) _LOG_##level(__VA_ARGS__)
+
+#if LOG_LEVEL >= 1
+#define _LOG_FATAL(...) __LOG(FATAL, __VA_ARGS__)
+#else
+#define _LOG_FATAL(...)
+#endif
+
+#if LOG_LEVEL >= 2
+#define _LOG_ERROR(...) __LOG(ERROR, __VA_ARGS__)
+#else
+#define _LOG_ERROR(...)
+#endif
+
+#if LOG_LEVEL >= 3
+#define _LOG_WARNING(...) __LOG(WARNING, __VA_ARGS__)
+#else
+#define _LOG_WARNING(...)
+#endif
+
+#if LOG_LEVEL >= 4
+#define _LOG_INFO(...) __LOG(INFO, __VA_ARGS__)
+#else
+#define _LOG_INFO(...)
+#endif
+
+#if LOG_LEVEL >= 5
+#define _LOG_DEBUG(...) __LOG(DEBUG, __VA_ARGS__)
+#else
+#define _LOG_DEBUG(...)
+#endif
+
+#if LOG_LEVEL >= 6
+#define _LOG_TRACE(...) __LOG(TRACE, __VA_ARGS__)
+#else
+#define _LOG_TRACE(...)
+#endif
+
+/* Macro magic, that makes logging work. It's better than C++ solution anyway... */
+#define _LOG_SIZEOF(...) __LOG_SIZEOF(__VA_ARGS__, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0)
+#define __LOG_SIZEOF(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, N, \
+                     ...)                                                                                          \
+    N
+#define _LOG_EVAL(x) x
+#define __LOG(level, ...) ___LOG(_LOG_SIZEOF(__VA_ARGS__), level, __VA_ARGS__)
+#define ___LOG(n, ...) ____LOG(n, __VA_ARGS__)
+#define ____LOG(n, ...) ____LOG##n(__VA_ARGS__)
+#define ____LOG1(level, format)      \
+    fprintf(stdout,                  \
+            "[" #level               \
+            "]"                      \
+            "\t%s:%d\t" format "\n", \
+            __builtin_strrchr(__FILE__, '/') ? __builtin_strrchr(__FILE__, '/') + 1 : __FILE__, __LINE__)
+#define ____LOG2(level, format, ...) \
+    fprintf(stdout,                  \
+            "[" #level               \
+            "]"                      \
+            "\t%s:%d\t" format "\n", \
+            __builtin_strrchr(__FILE__, '/') ? __builtin_strrchr(__FILE__, '/') + 1 : __FILE__, __LINE__, __VA_ARGS__)
+
+typedef enum
+{
+    TRACE = 1,
+    DEBUG = 2,
+    INFO = 3,
+    WARNING = 4,
+    ERROR = 5,
+    FATAL = 6
+} LogLevel;
+
+#endif /* LOG_H */