repo init. partial port of existing code

1 files changed, 54 insertions, 0 deletions

diff --git a/src/log.h b/src/log.h
new file mode 100644
index 0000000..e7a90ea
--- /dev/null
+++ b/src/log.h
@@ -0,0 +1,54 @@
+#pragma once
+
+#include <stdbool.h>
+
+#define ERROR_EXIT(...)           \
+  {                               \
+    fprintf(stderr, __VA_ARGS__); \
+    exit(1);                      \
+  }
+
+#define LOG_WARN_ENABLED 1
+#define LOG_INFO_ENABLED 1
+
+#ifdef CRELEASE
+#define LOG_DEBUG_ENABLED 0
+#define LOG_TRACE_ENABLED 0
+#else
+#define LOG_DEBUG_ENABLED 1
+#define LOG_TRACE_ENABLED 1
+#endif
+
+typedef enum log_level {
+  LOG_LEVEL_FATAL = 0,
+  LOG_LEVEL_ERROR = 1,
+  LOG_LEVEL_WARN = 2,
+  LOG_LEVEL_INFO = 3,
+  LOG_LEVEL_DEBUG = 4,
+  LOG_LEVEL_TRACE = 5,
+} log_level;
+
+bool logger_init();
+void logger_shutdown();
+
+// TODO: macro that outputs logger macros for a specific subsystem or string prefix e.g. "MEMORY" ->
+// logs now have more context potentially have line numbers too?
+
+void log_output(log_level level, const char* message, ...);
+
+#define FATAL(message, ...) log_output(LOG_LEVEL_FATAL, message, ##__VA_ARGS__);
+#define ERROR(message, ...) log_output(LOG_LEVEL_ERROR, message, ##__VA_ARGS__);
+#define WARN(message, ...) log_output(LOG_LEVEL_WARN, message, ##__VA_ARGS__);
+#define INFO(message, ...) log_output(LOG_LEVEL_INFO, message, ##__VA_ARGS__);
+
+#if LOG_DEBUG_ENABLED == 1
+#define DEBUG(message, ...) log_output(LOG_LEVEL_DEBUG, message, ##__VA_ARGS__);
+#else
+#define DEBUG(message, ...)
+#endif
+
+#if LOG_TRACE_ENABLED == 1
+#define TRACE(message, ...) log_output(LOG_LEVEL_TRACE, message, ##__VA_ARGS__);
+#else
+#define TRACE(message, ...)
+#endif
\ No newline at end of file