append_to_async

Asynchronously opens this for appending.

For more details, see append_to which is the synchronous version of this call.

When the operation is finished, callback will be called. You can then call append_to_async.end to get the result of the operation.

Example: Append to file, async:

public static int main (string[] args) {
	MainLoop loop = new MainLoop ();

	// Open or create a file for appending:
	File file = File.new_for_path ("my-test.txt");
	file.append_to_async.begin (FileCreateFlags.NONE, Priority.DEFAULT, null, (obj, res) => {;
		try {
			// Append a new line on each run:
			FileOutputStream os = file.append_to_async.end (res);
			os.write ("My new line\n".data);
		} catch (Error e) {
			print ("Error: %s\n", e.message);
		}

		loop.quit ();
	});

	loop.run ();
	return 0;
}

valac --pkg gio-2.0 GLib.File.append_to_async.vala

Parameters:

this	input File
flags	a set of FileCreateFlags
io_priority	the I/O priority of the request
cancellable	optional Cancellable object, null to ignore
callback	a TaskReadyCallback to call when the request is satisfied
user_data	the data to pass to callback function