1 #ifndef LOGGER_H_

2 #define LOGGER_H_

3

4 #include <stdio.h>

5 #include <stdarg.h>

6

7 enum {

8 LOG_INFO = 1,

9 LOG_WARNING = 2,

10 LOG_ERROR = 4,

11 LOG_DEBUG = 8

12 };

13

14 #ifdef __cplusplus

15 extern "C" {

16 #endif

17

18 /* Clear log outputs. Initially info/debug messages go to stdout, and

19 * warning/error messages to stderr.

20 */

21 void log_clear_targets(void);

22

23 /* set logging outputs for any combination of message types.

24 * type_mask expects a bitmask.

25 */

26 int log_add_stream(unsigned int type_mask, FILE *fp);

27 int log_add_file(unsigned int type_mask, const char *fname);

28 int log_add_func(unsigned int type_mask, void (*func)(const char*, void*), void *cls);

29

30 void log_msg(unsigned int type, const char *fmt, ...);

31 /* log_msg helpers */

32 void log_info(const char *fmt, ...);

33 void log_warning(const char *fmt, ...);

34 void log_error(const char *fmt, ...);

35 void log_debug(const char *fmt, ...);

36

37 void log_va_msg(unsigned int type, const char *fmt, va_list va);

38 /* log_va_msg helpers */

39 void log_va_info(const char *fmt, va_list ap);

40 void log_va_warning(const char *fmt, va_list ap);

41 void log_va_error(const char *fmt, va_list ap);

42 void log_va_debug(const char *fmt, va_list ap);

43

44 /* Intercept stdout/stderr and handle them through the logger. stdout as an

45 * info log, and stderr as an error log. This only works on UNIX.

46 */

47 void log_grab_stdout(void);

48 void log_grab_stderr(void);

49

50 #ifdef __cplusplus

51 }

52 #endif

53

54 #endif /* LOGGER_H_ */