EXIF library (libexif) API  0.6.24
exif-log.h File Reference

Log message infrastructure. More...

#include <libexif/exif-mem.h>
#include <stdarg.h>

Go to the source code of this file.

Macros

#define EXIF_LOG_NO_MEMORY(l, d, s)   exif_log ((l), EXIF_LOG_CODE_NO_MEMORY, (d), "Could not allocate %lu byte(s).", (unsigned long)(s))
 

Typedefs

typedef struct _ExifLog ExifLog
 State maintained by the logging interface.
 
typedef void(* ExifLogFunc) (ExifLog *log, ExifLogCode, const char *domain, const char *format, va_list args, void *data)
 Log callback function prototype.
 

Enumerations

enum  ExifLogCode { EXIF_LOG_CODE_NONE , EXIF_LOG_CODE_DEBUG , EXIF_LOG_CODE_NO_MEMORY , EXIF_LOG_CODE_CORRUPT_DATA }
 

Functions

ExifLogexif_log_new (void)
 Create a new logging instance. More...
 
ExifLogexif_log_new_mem (ExifMem *)
 
void exif_log_ref (ExifLog *log)
 
void exif_log_unref (ExifLog *log)
 
void exif_log_free (ExifLog *log)
 Delete instance of ExifLog. More...
 
const char * exif_log_code_get_title (ExifLogCode code)
 Return a textual description of the given class of error log. More...
 
const char * exif_log_code_get_message (ExifLogCode code)
 Return a verbose description of the given class of error log. More...
 
void exif_log_set_func (ExifLog *log, ExifLogFunc func, void *data)
 Register log callback function. More...
 
void exif_log (ExifLog *log, ExifLogCode, const char *domain, const char *format,...)
 
void exif_logv (ExifLog *log, ExifLogCode, const char *domain, const char *format, va_list args)
 

Detailed Description

Log message infrastructure.

Function Documentation

◆ exif_log_code_get_message()

const char* exif_log_code_get_message ( ExifLogCode  code)

Return a verbose description of the given class of error log.

Parameters
[in]codelogging message class
Returns
verbose description of the log class, or NULL if unknown

◆ exif_log_code_get_title()

const char* exif_log_code_get_title ( ExifLogCode  code)

Return a textual description of the given class of error log.

Parameters
[in]codelogging message class
Returns
textual description of the log class, or NULL if unknown

◆ exif_log_free()

void exif_log_free ( ExifLog log)

Delete instance of ExifLog.

See also
exif_log_new
Parameters
[in]logExifLog
Returns
new instance of ExifLog

◆ exif_log_new()

ExifLog* exif_log_new ( void  )

Create a new logging instance.

See also
exif_log_free
Returns
new instance of ExifLog

References exif_mem_new_default().

◆ exif_log_set_func()

void exif_log_set_func ( ExifLog log,
ExifLogFunc  func,
void *  data 
)

Register log callback function.

Calls to the log callback function are purely for diagnostic purposes.

Parameters
[in]loglogging state variable
[in]funccallback function to set
[in]datadata to pass into callback function