Initial commit

Can display a single PNG image scaled-to-fit on all outputs.

1 files changed, 42 insertions, 0 deletions

diff --git a/log.h b/log.h
new file mode 100644
index 0000000..dfddd76
--- /dev/null
+++ b/log.h
@@ -0,0 +1,42 @@
+#pragma once
+#include <stdbool.h>
+
+enum log_colorize { LOG_COLORIZE_NEVER, LOG_COLORIZE_ALWAYS, LOG_COLORIZE_AUTO };
+enum log_facility { LOG_FACILITY_USER, LOG_FACILITY_DAEMON };
+enum log_class { LOG_CLASS_ERROR, LOG_CLASS_WARNING, LOG_CLASS_INFO, LOG_CLASS_DEBUG };
+
+void log_init(enum log_colorize colorize, bool do_syslog,
+              enum log_facility syslog_facility, enum log_class syslog_level);
+void log_deinit(void);
+
+void log_msg(enum log_class log_class, const char *module,
+               const char *file, int lineno,
+               const char *fmt, ...) __attribute__((format (printf, 5, 6)));
+
+void log_errno(enum log_class log_class, const char *module,
+               const char *file, int lineno,
+               const char *fmt, ...) __attribute__((format (printf, 5, 6)));
+
+void log_errno_provided(
+    enum log_class log_class, const char *module,
+    const char *file, int lineno, int _errno,
+    const char *fmt, ...) __attribute__((format (printf, 6, 7)));
+
+#define LOG_ERR(fmt, ...)  \
+    log_msg(LOG_CLASS_ERROR, LOG_MODULE, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+#define LOG_ERRNO(fmt, ...) \
+    log_errno(LOG_CLASS_ERROR, LOG_MODULE, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+#define LOG_ERRNO_P(fmt, _errno, ...)                                   \
+    log_errno_provided(LOG_CLASS_ERROR, LOG_MODULE, __FILE__, __LINE__, \
+                       _errno, fmt, ## __VA_ARGS__)
+#define LOG_WARN(fmt, ...)  \
+    log_msg(LOG_CLASS_WARNING, LOG_MODULE, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+#define LOG_INFO(fmt, ...)  \
+    log_msg(LOG_CLASS_INFO, LOG_MODULE, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+
+#if defined(LOG_ENABLE_DBG) && LOG_ENABLE_DBG
+ #define LOG_DBG(fmt, ...)  \
+    log_msg(LOG_CLASS_DEBUG, LOG_MODULE, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
+#else
+ #define LOG_DBG(fmt, ...)
+#endif