Function

GLiblog_set_writer_func

since: 2.50

Declaration

void
g_log_set_writer_func (
  GLogWriterFunc func,
  gpointer user_data,
  GDestroyNotify user_data_free
)

Description

Set a writer function which will be called to format and write out each log message. Each program should set a writer function, or the default writer (g_log_writer_default()) will be used.

Libraries must not call this function — only programs are allowed to install a writer function, as there must be a single, central point where log messages are formatted and outputted.

There can only be one writer function. It is an error to set more than one.

Available since: 2.50

Parameters

func

Type: GLogWriterFunc

Log writer function, which must not be NULL.

The argument can be NULL.

user_data

Type: gpointer

User data to pass to func.

The argument can be NULL.

The data is owned by the caller of the function.

user_data_free

Type: GDestroyNotify

Function to free user_data once it’s finished with, if non-NULL.