added cleanup of unused variables and fix warning about missing initializers
to resolve build warnings in pipewire-rs
Signed-off-by: Dorinda Bassey <dbassey@redhat.com>
The Doxygen "Modules" page is not very illuminative, as different parts
of the API are mixed together and not all parts are included.
Try to address this:
Put all parts of the public API to some Doxygen group, usually one group
per header file. Use short, systematic names.
Make these groups sub-groups of a few top-level groups, roughly
corresponding to the different logical parts of the API (core, impl,
stream, filter, spa, utilities).
Check if we actually managed to add the param to the builder before we
try to deref it.
Use a safer deref that checks the sizes of the pod and builder.
First element is a spa_list, so {{0}} it is.
../spa/include/spa/node/utils.h:98:40: warning: missing braces around initializer for ‘spa_list’ [-Wmissing-braces]
98 | struct spa_hook listener = { 0 };
SPA_MEMBER is misleading, all we're doing here is pointer+offset and a
type-casting the result. Rename to SPA_PTROFF which is more expressive (and
has the same number of characters so we don't need to re-indent).
Make struct spa_node_events for events emited from the main thread
and keep the spa_node_callbacks for the data thread callbacks.
The add_listener method installs the events and it's possible to
install multiple handles. Adding a listener first emits the info
and port_info events when installed, similar to how the PipeWire
proxy bind works.
This removes the need for the spa_pending_queue and makes it easier
to implement the _sync versions.
Add some helpers to make it easier for plugins to emit all the info
to new listeners.
Use the listeners for devices as well.