1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/logger.h	Thu Jan 21 08:45:31 2016 +0200
     1.3 @@ -0,0 +1,54 @@
     1.4 +#ifndef LOGGER_H_
     1.5 +#define LOGGER_H_
     1.6 +
     1.7 +#include <stdio.h>
     1.8 +#include <stdarg.h>
     1.9 +
    1.10 +enum {
    1.11 +	LOG_INFO		= 1,
    1.12 +	LOG_WARNING		= 2,
    1.13 +	LOG_ERROR		= 4,
    1.14 +	LOG_DEBUG		= 8
    1.15 +};
    1.16 +
    1.17 +#ifdef __cplusplus
    1.18 +extern "C" {
    1.19 +#endif
    1.20 +
    1.21 +/* Clear log outputs. Initially info/debug messages go to stdout, and
    1.22 + * warning/error messages to stderr.
    1.23 + */
    1.24 +void log_clear_targets(void);
    1.25 +
    1.26 +/* set logging outputs for any combination of message types.
    1.27 + * type_mask expects a bitmask.
    1.28 + */
    1.29 +int log_add_stream(unsigned int type_mask, FILE *fp);
    1.30 +int log_add_file(unsigned int type_mask, const char *fname);
    1.31 +int log_add_func(unsigned int type_mask, void (*func)(const char*, void*), void *cls);
    1.32 +
    1.33 +void log_msg(unsigned int type, const char *fmt, ...);
    1.34 +/* log_msg helpers */
    1.35 +void log_info(const char *fmt, ...);
    1.36 +void log_warning(const char *fmt, ...);
    1.37 +void log_error(const char *fmt, ...);
    1.38 +void log_debug(const char *fmt, ...);
    1.39 +
    1.40 +void log_va_msg(unsigned int type, const char *fmt, va_list va);
    1.41 +/* log_va_msg helpers */
    1.42 +void log_va_info(const char *fmt, va_list ap);
    1.43 +void log_va_warning(const char *fmt, va_list ap);
    1.44 +void log_va_error(const char *fmt, va_list ap);
    1.45 +void log_va_debug(const char *fmt, va_list ap);
    1.46 +
    1.47 +/* Intercept stdout/stderr and handle them through the logger. stdout as an
    1.48 + * info log, and stderr as an error log. This only works on UNIX.
    1.49 + */
    1.50 +void log_grab_stdout(void);
    1.51 +void log_grab_stderr(void);
    1.52 +
    1.53 +#ifdef __cplusplus
    1.54 +}
    1.55 +#endif
    1.56 +
    1.57 +#endif	/* LOGGER_H_ */