Method
GLibSourceadd_child_source
since: 2.28
Description
Adds child_source to source as a “polled” source; when source is
added to a GMainContext, child_source will be automatically added
with the same priority, when child_source is triggered, it will
cause source to dispatch (in addition to calling its own
callback), and when source is destroyed, it will destroy
child_source as well. (source will also still be dispatched if
its own prepare/check functions indicate that it is ready.)
If you don’t need child_source to do anything on its own when it
triggers, you can call g_source_set_dummy_callback() on it to set a
callback that does nothing (except return TRUE if appropriate).
source will hold a reference on child_source while child_source
is attached to it.
This API is only intended to be used by implementations of GSource.
Do not call this API on a GSource that you did not create.
Available since: 2.28
Parameters
child_source-
Type:
GSourceA second
GSourcethatsourceshould “poll”The data is owned by the caller of the method.