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log.h File Reference

Logging features. More...

Go to the source code of this file.

## 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.

## 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.

## Typedef Documentation

## aubio_log_function_t

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.

## Enumeration Type Documentation

## aubio_log_level

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.

## Function Documentation

## aubio_log_reset()

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.

## aubio_log_set_function()

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_set_level_function()

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.