appender.h - Implement this interface for your own strategies for printing log statements.

       Generated automatically by Doxygen for log4c from the source code.

log4c                                             Version 1.2.4                                    appender.h(3)

       Implement this interface for your own strategies for printing log statements.

       Todo
           the appender interface needs a better configuration system depending on the layout type. The udata
           field is a just a trick.

intlog4c_appender_append(log4c_appender_t*this,log4c_logging_event_t*a_event)
       log in appender specific way.
       Parametersa_appender the log4c_appender object
           a_event the log4c_logging_event_t object to log.
       Bug
           is this the right place to open an appender ?
   intlog4c_appender_close(log4c_appender_t*a_appender)
       closes the appender
       Parametersa_appender the log4c_appender_t object
       Returns
           zero if successful, -1 otherwise
   voidlog4c_appender_delete(log4c_appender_t*a_appender)
       Destructor for log4c_appender_t.
   log4c_appender_t*log4c_appender_get(constchar*a_name)
       Get a pointer to an existing appender.
       Parametersa_name the name of the appender to return.
       Returns
           a pointer to an existing appender, or NULL if no appender with the specfied name exists.
   constlog4c_layout_t*log4c_appender_get_layout(constlog4c_appender_t*a_appender)Parametersa_appender the log4c_appender_t object
       Returns
           the appender layout
   constchar*log4c_appender_get_name(constlog4c_appender_t*a_appender)Parametersa_appender the log4c_appender_t object
       Returns
           the appender name
   constlog4c_appender_type_t*log4c_appender_get_type(constlog4c_appender_t*a_appender)Parametersa_appender the log4c_appender_t object
       Returns
           the appender operations
   void*log4c_appender_get_udata(constlog4c_appender_t*a_appender)Parametersa_appender the log4c_appender_t object
       Returns
           the appender user data
   log4c_appender_t*log4c_appender_new(constchar*a_name)
       Constructor for log4c_appender_t.
   intlog4c_appender_open(log4c_appender_t*a_appender)
       opens the appender.
       Parametersa_appender the log4c_appender_t object
   voidlog4c_appender_print(constlog4c_appender_t*a_appender,FILE*a_stream)
       prints the appender on a stream
       Parametersa_appender the log4c_appender_t object
           a_stream the stream
   constlog4c_layout_t*log4c_appender_set_layout(log4c_appender_t*a_appender,constlog4c_layout_t*a_layout)
       sets the appender layout
       Parametersa_appender the log4c_appender_t object
           a_layout the new appender layout
       Returns
           the previous appender layout
   constlog4c_appender_type_t*log4c_appender_set_type(log4c_appender_t*a_appender,constlog4c_appender_type_t*a_type)
       sets the appender type
       Parametersa_appender the log4c_appender_t object
           a_type the new appender type
       Returns
           the previous appender type
   void*log4c_appender_set_udata(log4c_appender_t*a_appender,void*a_udata)
       sets the appender user data
       Parametersa_appender the log4c_appender_t object
           a_udata the new appender user data
       Returns
           the previous appender user data
   constlog4c_appender_type_t*log4c_appender_type_get(constchar*a_name)
       Get a pointer to an existing appender type.
       Parametersa_name the name of the appender type to return.

       Returns
           a pointer to an existing appender type, or NULL if no appender type with the specified name exists.
   constlog4c_appender_type_t*log4c_appender_type_set(constlog4c_appender_type_t*a_type)
       Use  this  function to register an appender type with log4c. Once this is done you may refer to this type
       by name both programmatically and in the log4c configuration file.
       Parametersa_type a pointer to the new appender type to set.
       Returns
           a pointer to the previous appender type of same name.
       Example code fragment:
       const log4c_appender_type_t log4c_appender_type_s13_file = {
         "s13_file",
         s13_file_open,
         s13_file_append,
         s13_file_close,
       };

        log4c_appender_type_set(&log4c_appender_type_s13_file);

   voidlog4c_appender_types_free(void)
       free all appender types
   voidlog4c_appender_types_print(FILE*fp)
       prints all the current registered appender types on a stream
       Parametersfp the stream

#definelog4c_appender_type_define(a_type)
       Helper macro to define static appender types.

       Parametersa_type the log4c_appender_type_t object to define

       Warning
           needs GCC support: otherwise this macro does nothing

       Deprecated
           This macro, and the static initialialization of appenders in general, is deprecated. Use rather the
           log4c_appender_type_set() function to initialize your appenders before calling log4c_init()

       appender.h - Implement this interface for your own strategies for printing log statements.

       #include <log4c/defs.h>
       #include <log4c/layout.h>
       #include <stdio.h>

   DataStructures
       struct log4c_appender_type
           log4c appender type class

   Macros
       #define log4c_appender_type_define(a_type)

   Typedefs
       typedef struct __log4c_appender log4c_appender_t
       typedef struct log4c_appender_typelog4c_appender_type_t
           log4c appender type class

   Functions
       const log4c_appender_type_t * log4c_appender_type_get (const char *a_name)
       const log4c_appender_type_t * log4c_appender_type_set (const log4c_appender_type_t *a_type)
       log4c_appender_t * log4c_appender_get (const char *a_name)
       log4c_appender_t * log4c_appender_new (const char *a_name)
       void log4c_appender_delete (log4c_appender_t *a_appender)
       const char * log4c_appender_get_name (const log4c_appender_t *a_appender)
       const log4c_appender_type_t * log4c_appender_get_type (const log4c_appender_t *a_appender)
       const log4c_layout_t * log4c_appender_get_layout (const log4c_appender_t *a_appender)
       void * log4c_appender_get_udata (const log4c_appender_t *a_appender)
       const log4c_appender_type_t * log4c_appender_set_type (log4c_appender_t *a_appender, const
           log4c_appender_type_t *a_type)
       void * log4c_appender_set_udata (log4c_appender_t *a_appender, void *a_udata)
       const log4c_layout_t * log4c_appender_set_layout (log4c_appender_t *a_appender, const log4c_layout_t
           *a_layout)
       int log4c_appender_open (log4c_appender_t *a_appender)
       int log4c_appender_append (log4c_appender_t *a_appender, log4c_logging_event_t *a_event)
       int log4c_appender_close (log4c_appender_t *a_appender)
       void log4c_appender_print (const log4c_appender_t *a_appender, FILE *a_stream)
       void log4c_appender_types_free (void)
       void log4c_appender_types_print (FILE *fp)

typedefstruct__log4c_appenderlog4c_appender_t
       log4c appender class

   typedefstructlog4c_appender_typelog4c_appender_type_t
       log4c appender type class Attributes description:

       •
        name appender type name
       •
        open
       •
        append
       •
        close