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:
GSource
A second
GSource
thatsource
should “poll”The data is owned by the caller of the method.