Package ch.bailu.gtk.gio

Schnittstelle File.OnFileMeasureProgressCallback

Umschließende Klasse:

File

Funktionsschnittstelle:

Dies ist eine funktionale Schnittstelle, die somit als Zuweisungsziel für einen Lambdaausdruck oder eine Methodenreferenz verwendet werden kann.

@FunctionalInterface
public static interface File.OnFileMeasureProgressCallback

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
void	onFileMeasureProgressCallback(CallbackHandler __self, boolean reporting, long current_size, long num_dirs, long num_files, Pointer data)	This callback type is used by g_file_measure_disk_usage() to make periodic progress reports when measuring the amount of disk spaced used by a directory.

Methodendetails

onFileMeasureProgressCallback

void onFileMeasureProgressCallback(CallbackHandler __self,
 boolean reporting,
 long current_size,
 long num_dirs,
 long num_files,
 @Nullable
 Pointer data)

This callback type is used by g_file_measure_disk_usage() to make
periodic progress reports when measuring the amount of disk spaced
used by a directory.

These calls are made on a best-effort basis and not all types of
#GFile will support them. At the minimum, however, one call will
always be made immediately.

In the case that there is no support, @reporting will be set to
%FALSE (and the other values undefined) and no further calls will be
made. Otherwise, the @reporting will be %TRUE and the other values
all-zeros during the first (immediate) call. In this way, you can
know which type of progress UI to show without a delay.

For g_file_measure_disk_usage() the callback is made directly. For
g_file_measure_disk_usage_async() the callback is made via the
default main context of the calling thread (ie: the same way that the
final async result would be reported).

@current_size is in the same units as requested by the operation (see
%G_FILE_MEASURE_APPARENT_SIZE).

The frequency of the updates is implementation defined, but is
ideally about once every 200ms.

The last progress callback may or may not be equal to the final
result. Always check the async result to get the final value.

Parameter:

reporting - %TRUE if more reports will come

current_size - the current cumulative size measurement

num_dirs - the number of directories visited so far

num_files - the number of non-directory files encountered

data - the data passed to the original request for this callback