utils/log.h File Reference

Logging features. More...

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Typedefs
typedef void(*	aubio_log_function_t )(sint_t level, const char_t *message, void *data)
	Logging function prototype, to be passed to aubio_log_set_function.
Enumerations
enum	aubio_log_level {   AUBIO_LOG_ERR, AUBIO_LOG_INF, AUBIO_LOG_MSG, AUBIO_LOG_DBG,   AUBIO_LOG_WRN, AUBIO_LOG_LAST_LEVEL }
	list of logging levels More...
Functions
void	aubio_log_set_function (aubio_log_function_t fun, void *data)
	Set logging function for all levels.
aubio_log_function_t	aubio_log_set_level_function (sint_t level, aubio_log_function_t fun, void *data)
	Set logging function for a given level.
void	aubio_log_reset (void)
	Reset all logging functions to the default one.

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Detailed Description

Logging features.

This file specifies aubio_log_set_function and aubio_log_set_level_function, which let you define one or several custom logging functions to redirect warnings and errors from aubio to your application. The custom function should have the prototype defined in aubio_log_function_t.

After a call to aubio_log_set_level_function, aubio_log_reset can be used to reset each logging functions to the default ones.

Definition in file log.h.

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Typedef Documentation

typedef void(* aubio_log_function_t)(sint_t level, const char_t *message, void *data)

Logging function prototype, to be passed to aubio_log_set_function.

Parameters:

level	log level
message	text to log
data	optional closure used by the callback

See utils/test-log::c for an example of logging function.

Definition at line 64 of file log.h.

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Enumeration Type Documentation

enum aubio_log_level

list of logging levels

Enumerator:

AUBIO_LOG_ERR	critical errors
AUBIO_LOG_INF	infos
AUBIO_LOG_MSG	general messages
AUBIO_LOG_DBG	debug messages
AUBIO_LOG_WRN	warnings
AUBIO_LOG_LAST_LEVEL	number of valid levels

Definition at line 46 of file log.h.

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Function Documentation

void aubio_log_reset

(

void

)

Reset all logging functions to the default one.

After calling this function, the default logging function will be used to print error, warning, normal, and debug messages to `stdout` or `stderr`.

Examples:

utils/test-log.c.

void aubio_log_set_function	(	aubio_log_function_t	fun,
		void *	data
	)

Set logging function for all levels.

Parameters:

fun	the function to be used to log, of type aubio_log_function_t
data	optional closure to be passed to the function (can be NULL if nothing to pass)

Examples:

utils/test-log.c.

aubio_log_function_t aubio_log_set_level_function	(	sint_t	level,
		aubio_log_function_t	fun,
		void *	data
	)

Set logging function for a given level.

Parameters:

level	the level for which to set the logging function
fun	the function to be used to log, of type aubio_log_function_t
data	optional closure to be passed to the function (can be NULL if nothing to pass)

Examples:

utils/test-log.c.