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#ifndef LOGGER_H_
#define LOGGER_H_
#include <glib-object.h>
#ifdef __cplusplus
#include <cstdarg> /* for va_list */
#else
#include <stdarg.h> /* for va_list */
#endif
G_BEGIN_DECLS
#define LOGGER_TYPE (logger_get_type ())
#define LOGGER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LOGGER_TYPE, Logger))
#define IS_LOGGER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LOGGER_TYPE))
#define LOGGER_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), LOGGER_TYPE, LoggerInterface))
typedef struct Logger Logger;
typedef struct {
GTypeInterface parent;
gint (*logprefix) (Logger *self, gchar *buf, gulong buflen);
void (*logv) (Logger *self, GLogLevelFlags log_level, const gchar *format, va_list ap);
} LoggerInterface;
GType logger_get_type (void);
/*!
* \brief instruct \c self to generate a log message prefix
*
* the semantics of the \c buf and \c buflen arguments and the return
* value are the same as g_snprintf()
*
* there is no default implementation
*/
gint logger_logprefix (Logger *self, gchar *buf, gulong buflen);
/*!
* \brief instruct \c self to log the given message
*
* the default implementation prefixes the log message with the
* output of logger_logprefix() and then passes the result to
* g_log()
*/
void logger_logv (Logger *self, GLogLevelFlags log_level, const gchar *format, va_list ap) __attribute__ ((format (printf, 3, 0)));
/*! \brief convenience wrapper around \c logger_logv() */
void logger_log (Logger *self, GLogLevelFlags log_level, const gchar *format, ...) __attribute__ ((format (printf, 3, 4)));
/* convenience wrappers around logger_log() */
#define l_debug(self, ...) \
logger_log (LOGGER (self), G_LOG_LEVEL_DEBUG, __VA_ARGS__)
#define l_warning(self, ...) \
logger_log (LOGGER (self), G_LOG_LEVEL_WARNING, __VA_ARGS__)
G_END_DECLS
#endif /* !LOGGER_H_ */
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