new_valist_async

Description:

public static async Object new_valist_async (Type object_type, string first_property_name, va_list var_args, int io_priority = DEFAULT, Cancellable? cancellable = null)

Helper function for constructing AsyncInitable object.

This is similar to new_valist but also initializes the object asynchronously.

When the initialization is finished, callback will be called. You can then call new_async.end to get the new object and check for any errors.

Parameters:

object_type	a Type supporting AsyncInitable.
first_property_name	the name of the first property, followed by the value, and other property value pairs, and ended by null.
var_args	The var args list generated from `first_property_name`.
io_priority	the I/O priority of the operation
cancellable	optional Cancellable object, null to ignore.
callback	a AsyncReadyCallback to call when the initialization is finished
user_data	the data to pass to callback function