Add basic logging functionality

src/log/log.h

@@ -0,0 +1,34 @@
+// vim:fileencoding=utf-8:foldmethod=marker
+
+#ifndef LOG_H
+#define LOG_H
+
+#include "../os/file/file.h"
+#include "../base/strings/str8/str8.h"
+
+typedef enum {
+	WAPP_LOG_FATAL,
+	WAPP_LOG_CRITICAL,
+	WAPP_LOG_ERROR,
+	WAPP_LOG_WARNING,
+	WAPP_LOG_INFO,
+	WAPP_LOG_DEBUG,
+
+	COUNT_LOG_LEVEL,
+} LogLevel;
+
+typedef struct {
+	Str8 name;
+} Logger;
+
+void wapp_log_set_level(LogLevel level);
+void wapp_log_configure(WFile *outlog, WFile *errlog, LogLevel level);
+Logger wapp_log_make_logger(Str8 name);
+void wapp_log_debug(const Logger *logger, Str8 msg);
+void wapp_log_info(const Logger *logger, Str8 msg);
+void wapp_log_warning(const Logger *logger, Str8 msg);
+void wapp_log_error(const Logger *logger, Str8 msg);
+void wapp_log_critical(const Logger *logger, Str8 msg);
+void wapp_log_fatal(const Logger *logger, Str8 msg);
+
+#endif // !LOG_H