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Improve async handling

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Don't use special callback in node to receive the results. Instead,
use a generic result callback to receive the result. This makes things
a bit more symetric and generic again because then you can choose how
to match the result to the request and you have a generic way to handle
both the sync and async case. We can then also remove the wait method.
This also makes the remote interface and spa interface to objects very
similar.

Make a helper object to receive and dispatch results. Use this in the
helper for enum_params.

Make device use the same result callbacks.
This commit is contained in:
Wim Taymans 2019-02-25 12:29:57 +01:00
parent 98463b689b
commit d2c18c7b1a
64 changed files with 1298 additions and 1141 deletions
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39
src/pipewire/private.h
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@ -304,23 +304,24 @@ struct pw_node_activation {
struct spa_graph_state state[2]; /* one current state and one next state */
};
#define pw_node_events_emit(o,m,v,...) spa_hook_list_call(&o->listener_list, struct pw_node_events, m, v, ##__VA_ARGS__)
#define pw_node_events_destroy(n) pw_node_events_emit(n, destroy, 0)
#define pw_node_events_free(n) pw_node_events_emit(n, free, 0)
#define pw_node_events_initialized(n) pw_node_events_emit(n, initialized, 0)
#define pw_node_events_port_init(n,p) pw_node_events_emit(n, port_init, 0, p)
#define pw_node_events_port_added(n,p) pw_node_events_emit(n, port_added, 0, p)
#define pw_node_events_port_removed(n,p) pw_node_events_emit(n, port_removed, 0, p)
#define pw_node_events_info_changed(n,i) pw_node_events_emit(n, info_changed, 0, i)
#define pw_node_events_active_changed(n,a) pw_node_events_emit(n, active_changed, 0, a)
#define pw_node_events_enabled_changed(n,e) pw_node_events_emit(n, enabled_changed, 0, e)
#define pw_node_events_state_request(n,s) pw_node_events_emit(n, state_request, 0, s)
#define pw_node_events_state_changed(n,o,s,e) pw_node_events_emit(n, state_changed, 0, o, s, e)
#define pw_node_events_async_complete(n,s,r) pw_node_events_emit(n, async_complete, 0, s, r)
#define pw_node_events_event(n,e) pw_node_events_emit(n, event, 0, e)
#define pw_node_events_driver_changed(n,o,d) pw_node_events_emit(n, driver_changed, 0, o, d)
#define pw_node_events_peer_added(n,p) pw_node_events_emit(n, peer_added, 0, p)
#define pw_node_events_peer_removed(n,p) pw_node_events_emit(n, peer_removed, 0, p)
#define pw_node_emit(o,m,v,...) spa_hook_list_call(&o->listener_list, struct pw_node_events, m, v, ##__VA_ARGS__)
#define pw_node_emit_destroy(n) pw_node_emit(n, destroy, 0)
#define pw_node_emit_free(n) pw_node_emit(n, free, 0)
#define pw_node_emit_initialized(n) pw_node_emit(n, initialized, 0)
#define pw_node_emit_port_init(n,p) pw_node_emit(n, port_init, 0, p)
#define pw_node_emit_port_added(n,p) pw_node_emit(n, port_added, 0, p)
#define pw_node_emit_port_removed(n,p) pw_node_emit(n, port_removed, 0, p)
#define pw_node_emit_info_changed(n,i) pw_node_emit(n, info_changed, 0, i)
#define pw_node_emit_active_changed(n,a) pw_node_emit(n, active_changed, 0, a)
#define pw_node_emit_enabled_changed(n,e) pw_node_emit(n, enabled_changed, 0, e)
#define pw_node_emit_state_request(n,s) pw_node_emit(n, state_request, 0, s)
#define pw_node_emit_state_changed(n,o,s,e) pw_node_emit(n, state_changed, 0, o, s, e)
#define pw_node_emit_async_complete(n,s,r) pw_node_emit(n, async_complete, 0, s, r)
#define pw_node_emit_result(n,s,r,result) pw_node_emit(n, result, 0, s, r, result)
#define pw_node_emit_event(n,e) pw_node_emit(n, event, 0, e)
#define pw_node_emit_driver_changed(n,o,d) pw_node_emit(n, driver_changed, 0, o, d)
#define pw_node_emit_peer_added(n,p) pw_node_emit(n, peer_added, 0, p)
#define pw_node_emit_peer_removed(n,p) pw_node_emit(n, peer_removed, 0, p)
struct pw_node {
struct pw_core *core; /**< core object */
@ -367,6 +368,8 @@ struct pw_node {
struct pw_loop *data_loop; /**< the data loop for this node */
struct spa_pending_queue *pending;
uint32_t quantum_size; /**< desired quantum */
struct spa_source source; /**< source to remotely trigger this node */
struct pw_memblock *activation;
@ -534,6 +537,7 @@ struct pw_resource {
struct spa_hook_list listener_list;
const struct pw_protocol_marshal *marshal;
int seq;
void *access_private; /**< private data for access control */
void *user_data; /**< extra user data */
@ -554,6 +558,7 @@ struct pw_proxy {
struct spa_hook_list proxy_listener_list;
const struct pw_protocol_marshal *marshal; /**< protocol specific marshal functions */
int seq;
void *user_data; /**< extra user data */
};