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interfaces: improve remote API

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Add return values to events and method callbacks. This makes it
possible to pass any error or async return value.
Add sync/done/error in both directions so that both proxy and resource
and perform/reply sync and produce errors.
Return a SPA_ASYNC from remote method calls (and events), keep the
sequence number in the connection.
With the core sync/done we can remove the client-node done method and
it's internal sequence number along with the seq number in method calls.
We can also use the method/event async return value to perform a sync
with as the unique sequence number for this method.
Add sync method and done/error event to proxy and resource.
This commit is contained in:
Wim Taymans 2019-02-18 12:31:36 +01:00
parent 0d8821096a
commit eea062ee53
41 changed files with 1180 additions and 817 deletions
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17
spa/plugins/alsa/alsa-sink.c
View file

@ -264,6 +264,20 @@ static void emit_port_info(struct state *this)
}
}
static int
impl_node_sync(struct spa_node *node, uint32_t seq)
{
struct state *this;
spa_return_val_if_fail(node != NULL, -EINVAL);
this = SPA_CONTAINER_OF(node, struct state, node);
spa_return_val_if_fail(this->callbacks && this->callbacks->done, -EIO);
this->callbacks->done(this->callbacks_data, seq);
return 0;
}
static int
impl_node_set_callbacks(struct spa_node *node,
const struct spa_node_callbacks *callbacks,
@ -637,11 +651,12 @@ static int impl_node_process(struct spa_node *node)
static const struct spa_node impl_node = {
SPA_VERSION_NODE,
.set_callbacks = impl_node_set_callbacks,
.sync = impl_node_sync,
.enum_params = impl_node_enum_params,
.set_param = impl_node_set_param,
.set_io = impl_node_set_io,
.send_command = impl_node_send_command,
.set_callbacks = impl_node_set_callbacks,
.add_port = impl_node_add_port,
.remove_port = impl_node_remove_port,
.port_enum_params = impl_node_port_enum_params,