2 files changed, 80 insertions, 0 deletions
diff --git a/louloulibs b/louloulibs
deleted file mode 160000
-Subproject 0f3c1183e2bf0941ae2bffd3f31577bce4f3001
diff --git a/louloulibs/logger/logger.hpp b/louloulibs/logger/logger.hpp
new file mode 100644
index 0000000..78b1278
--- /dev/null
+++ b/louloulibs/logger/logger.hpp
@@ -0,0 +1,80 @@
+#ifndef LOGGER_INCLUDED
+# define LOGGER_INCLUDED
+
+/**
+ * Singleton used in logger macros to write into files or stdout, with
+ * various levels of severity.
+ * Only the macros should be used.
+ * @class Logger
+ */
+
+#include <memory>
+#include <iostream>
+#include <fstream>
+
+#define debug_lvl 0
+#define info_lvl 1
+#define warning_lvl 2
+#define error_lvl 3
+
+#include "louloulibs.h"
+#ifdef SYSTEMD_FOUND
+# include <systemd/sd-daemon.h>
+#else
+# define SD_DEBUG    "[DEBUG]: "
+# define SD_INFO     "[INFO]: "
+# define SD_WARNING  "[WARNING]: "
+# define SD_ERR      "[ERROR]: "
+#endif
+
+// Macro defined to get the filename instead of the full path. But if it is
+// not properly defined by the build system, we fallback to __FILE__
+#ifndef __FILENAME__
+# define __FILENAME__ __FILE__
+#endif
+
+#define WHERE\
+  __FILENAME__ << ":" << __LINE__
+
+#define log_debug(text)\
+  Logger::instance()->get_stream(debug_lvl) << SD_DEBUG << WHERE << ":\t" << text << std::endl;
+
+#define log_info(text)\
+  Logger::instance()->get_stream(info_lvl) << SD_INFO << WHERE << ":\t" << text << std::endl;
+
+#define log_warning(text)\
+  Logger::instance()->get_stream(warning_lvl) << SD_WARNING << WHERE << ":\t" << text << std::endl;
+
+#define log_error(text)\
+  Logger::instance()->get_stream(error_lvl) << SD_ERR << WHERE << ":\t" << text << std::endl;
+
+/**
+ * Juste a structure representing a stream doing nothing with its input.
+ */
+class nullstream: public std::ostream
+{
+public:
+  nullstream():
+    std::ostream(0)
+  { }
+};
+
+class Logger
+{
+public:
+  static std::unique_ptr<Logger>& instance();
+  std::ostream& get_stream(const int);
+  Logger(const int log_level, const std::string& log_file);
+  Logger(const int log_level);
+
+private:
+  Logger(const Logger&);
+  Logger& operator=(const Logger&);
+
+  const int log_level;
+  std::ofstream ofstream;
+  nullstream null_stream;
+  std::ostream stream;
+};
+
+#endif // LOGGER_INCLUDED