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m-default-nodes: Port to Event stack

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This commit is contained in:
Ashok Sidipotu
2022-06-24 08:15:50 +05:30
committed by Julian Bouzas
parent d61be3c397
commit 025b0f6e2e
2 changed files with 176 additions and 54 deletions
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90
modules/module-default-nodes-api.c
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@@ -11,6 +11,11 @@
#include <pipewire/keys.h>
#include "module-default-nodes/common.h"
/*
* Module Provides the APIs to query the default device nodes. Module looks at
* the default metadata to know the default devices.
*/
typedef struct _WpDefaultNode WpDefaultNode;
struct _WpDefaultNode
{
@@ -64,6 +69,8 @@ schedule_changed_notification (WpDefaultNodesApi *self)
{
g_autoptr (WpCore) core = wp_object_get_core (WP_OBJECT (self));
g_return_if_fail (core);
// Event-Stack TBD: do we need to retain this behavior? or push this as a
// event & hook pair on to event stack
wp_core_sync_closure (core, NULL, g_cclosure_new_object (
G_CALLBACK (sync_changed_notification), G_OBJECT (self)));
}
@@ -79,53 +86,72 @@ on_metadata_changed (WpMetadata *m, guint32 subject,
for (gint i = 0; i < N_DEFAULT_NODES; i++) {
if (!g_strcmp0 (key, DEFAULT_KEY[i])) {
g_clear_pointer (&self->defaults[i].value, g_free);
if (value && !g_strcmp0 (type, "Spa:String:JSON")) {
g_autoptr (WpSpaJson) json = wp_spa_json_new_from_string (value);
g_autofree gchar *name = NULL;
if (wp_spa_json_object_get (json, "name", "s", &name, NULL))
self->defaults[i].value = g_strdup (name);
}
if (wp_spa_json_object_get (json, "name", "s", &name, NULL)) {
wp_debug_object (m, "'%s' changed from %s -> '%s'", key, name,
self->defaults[i].value);
g_clear_pointer (&self->defaults[i].value, g_free);
wp_debug_object (m, "changed '%s' -> '%s'", key,
self->defaults[i].value);
self->defaults[i].value = g_strdup (name);
}
}
schedule_changed_notification (self);
break;
} else if (!g_strcmp0 (key, DEFAULT_CONFIG_KEY[i])) {
g_clear_pointer (&self->defaults[i].config_value, g_free);
if (value && !g_strcmp0 (type, "Spa:String:JSON")) {
g_autoptr (WpSpaJson) json = wp_spa_json_new_from_string (value);
g_autofree gchar *name = NULL;
if (wp_spa_json_object_get (json, "name", "s", &name, NULL))
if (wp_spa_json_object_get (json, "name", "s", &name, NULL)){
wp_debug_object (m, "'%s' changed from %s -> '%s'", key, name,
self->defaults[i].config_value);
g_clear_pointer (&self->defaults[i].config_value, g_free);
self->defaults[i].config_value = g_strdup (name);
}
}
wp_debug_object (m, "changed '%s' -> '%s'", key,
self->defaults[i].config_value);
break;
}
}
}
static void
on_metadata_added (WpObjectManager *om, WpObject *obj, WpDefaultNodesApi * self)
on_metadata_changed_hook (WpEvent *event, gpointer d)
{
WpDefaultNodesApi * self = WP_DEFAULT_NODES_API (d);
g_autoptr (GObject) subject = wp_event_get_subject (event);
WpMetadata *m = WP_METADATA (subject);
g_autoptr (WpProperties) p = wp_event_get_properties (event);
guint32 subject_id = atoi (wp_properties_get (p, "event.subject.id"));
const gchar *key = wp_properties_get (p, "event.subject.key");
const gchar *type = wp_properties_get (p, "event.subject.spa_type");
const gchar *value = wp_properties_get (p, "event.subject.value");
on_metadata_changed (m, subject_id, key, type, value, self);
}
static void
on_metadata_added (WpEvent *event, gpointer d)
{
WpDefaultNodesApi * self = WP_DEFAULT_NODES_API (d);
g_autoptr (GObject) subject = wp_event_get_subject (event);
WpMetadata *obj = WP_METADATA (subject);
if (WP_IS_METADATA (obj)) {
g_autoptr (WpIterator) it = wp_metadata_new_iterator (WP_METADATA (obj), 0);
g_auto (GValue) val = G_VALUE_INIT;
for (; wp_iterator_next (it, &val); g_value_unset (&val)) {
guint32 subject;
guint32 subject_id;
const gchar *key, *type, *value;
wp_metadata_iterator_item_extract (&val, &subject, &key, &type, &value);
on_metadata_changed (WP_METADATA (obj), subject, key, type, value, self);
wp_metadata_iterator_item_extract (&val, &subject_id, &key, &type, &value);
on_metadata_changed (WP_METADATA (obj), subject_id, key, type, value, self);
}
g_signal_connect_object (obj, "changed",
G_CALLBACK (on_metadata_changed), self, 0);
}
}
@@ -141,6 +167,32 @@ wp_default_nodes_api_enable (WpPlugin * plugin, WpTransition * transition)
WpDefaultNodesApi * self = WP_DEFAULT_NODES_API (plugin);
g_autoptr (WpCore) core = wp_object_get_core (WP_OBJECT (plugin));
g_return_if_fail (core);
g_autoptr (WpEventDispatcher) dispatcher =
wp_event_dispatcher_get_instance (core);
g_autoptr (WpEventHook) hook = NULL;
g_return_if_fail (dispatcher);
/* default metadata added */
hook = wp_simple_event_hook_new (10, WP_EVENT_HOOK_EXEC_TYPE_ON_EVENT,
g_cclosure_new ((GCallback) on_metadata_added, self, NULL));
wp_interest_event_hook_add_interest (WP_INTEREST_EVENT_HOOK (hook),
WP_CONSTRAINT_TYPE_PW_PROPERTY, "event.type", "=s", "object-added",
WP_CONSTRAINT_TYPE_PW_PROPERTY, "event.subject.type", "=s", "metadata",
WP_CONSTRAINT_TYPE_PW_GLOBAL_PROPERTY, "metadata.name", "=s", "default",
NULL);
wp_event_dispatcher_register_hook (dispatcher, hook);
g_clear_object(&hook);
/* default metadata changed */
hook = wp_simple_event_hook_new (10, WP_EVENT_HOOK_EXEC_TYPE_ON_EVENT,
g_cclosure_new ((GCallback) on_metadata_changed_hook, self, NULL));
wp_interest_event_hook_add_interest (WP_INTEREST_EVENT_HOOK (hook),
WP_CONSTRAINT_TYPE_PW_PROPERTY, "event.type", "=s", "object-changed",
WP_CONSTRAINT_TYPE_PW_PROPERTY, "event.subject.type", "=s", "metadata",
WP_CONSTRAINT_TYPE_PW_GLOBAL_PROPERTY, "metadata.name", "=s", "default",
NULL);
wp_event_dispatcher_register_hook (dispatcher, hook);
g_clear_object(&hook);
/* Create the metadata object manager */
self->om = wp_object_manager_new ();
@@ -152,8 +204,6 @@ wp_default_nodes_api_enable (WpPlugin * plugin, WpTransition * transition)
WP_TYPE_METADATA, WP_OBJECT_FEATURES_ALL);
wp_object_manager_request_object_features (self->om,
WP_TYPE_NODE, WP_PIPEWIRE_OBJECT_FEATURES_MINIMAL);
g_signal_connect_object (self->om, "object-added",
G_CALLBACK (on_metadata_added), self, 0);
g_signal_connect_object (self->om, "installed",
G_CALLBACK (on_om_installed), self, 0);
wp_core_install_object_manager (core, self->om);