Add debug macros

src/debug.hh

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <cstdio>
+#include <cstdarg>
+
+// TODO constexpr??
+inline const char *className(const std::string& prettyFunction)
+{
+    size_t colons = prettyFunction.find("::");
+    if (colons == std::string::npos)
+        return "";
+
+    size_t begin = prettyFunction.substr(0,colons).rfind(" ") + 1;
+    size_t end = colons - begin;
+
+    return prettyFunction.substr(begin,end).c_str();
+}
+
+#define LOG_LEVEL_ERROR "\x1b[31mERROR\x1b[0m"
+#define LOG_LEVEL_WARN  "\x1b[33mWARNING\x1b[0m"
+#define LOG_LEVEL_INFO  "\x1b[34mINFO\x1b[0m"
+#define LOG_LEVEL_DEBUG "DEBUG"
+
+#define debug(level, fmt, ...) \
+	fprintf(stderr, "[RTPLIB][%s][%s::%s] " fmt "\n", level, \
+            className(__PRETTY_FUNCTION__), __func__, ##__VA_ARGS__)
+
+#ifndef __NDEBUG__
+#define LOG_DEBUG(fmt,  ...) debug(LOG_LEVEL_DEBUG,  fmt, ##__VA_ARGS__)
+#else
+#define LOG_DEBUG(fmt,  ...) ;
+#endif
+
+#ifdef __RTP_SILENT__
+#define LOG_ERROR(fmt,  ...) ;
+#define LOG_WARN(fmt,   ...) ;
+#define LOG_INFO(fmt,   ...) ;
+#undef LOG_DEBUG
+#define LOG_DEBUG(fmt,  ...) ;
+#else
+#define LOG_ERROR(fmt,  ...) debug(LOG_LEVEL_ERROR,  fmt, ##__VA_ARGS__)
+#define LOG_WARN(fmt,   ...) debug(LOG_LEVEL_WARN,   fmt, ##__VA_ARGS__)
+#define LOG_INFO(fmt,   ...) debug(LOG_LEVEL_INFO,   fmt, ##__VA_ARGS__)
+#endif