mirror of
https://gitlab.freedesktop.org/pipewire/wireplumber.git
synced 2026-05-05 12:28:02 +02:00
object-manager: actually add the object-manager.* files in git
This commit is contained in:
George Kiagiadakis
parent
e7e5c66853
commit
73978f76aa
2 changed files with 484 additions and 0 deletions
445
lib/wp/object-manager.c
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445
lib/wp/object-manager.c
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/* WirePlumber
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*
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* Copyright © 2019 Collabora Ltd.
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* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
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*
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* SPDX-License-Identifier: MIT
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*/
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#include "object-manager.h"
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#include "private.h"
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#include <pipewire/array.h>
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struct interest
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{
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gsize type;
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gboolean for_proxy;
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WpProxyFeatures wanted_features;
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GVariant *constraints; // aa{sv}
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};
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struct _WpObjectManager
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{
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GObject parent;
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GWeakRef core;
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/* array of struct interest;
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pw_array has a better API for our use case than GArray */
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struct pw_array interests;
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/* objects that we are interested in, with a strong ref */
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GPtrArray *objects;
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guint idle_objchanged_source;
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};
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enum {
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PROP_0,
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PROP_CORE,
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};
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enum {
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SIGNAL_OBJECT_ADDED,
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SIGNAL_OBJECT_REMOVED,
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SIGNAL_OBJECTS_CHANGED,
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LAST_SIGNAL,
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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G_DEFINE_TYPE (WpObjectManager, wp_object_manager, G_TYPE_OBJECT)
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static void
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wp_object_manager_init (WpObjectManager * self)
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{
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g_weak_ref_init (&self->core, NULL);
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pw_array_init (&self->interests, sizeof (struct interest));
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self->objects = g_ptr_array_new_with_free_func (g_object_unref);
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}
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static void
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wp_object_manager_finalize (GObject * object)
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{
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WpObjectManager *self = WP_OBJECT_MANAGER (object);
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struct interest *i;
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if (self->idle_objchanged_source != 0)
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g_source_remove (self->idle_objchanged_source);
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g_clear_pointer (&self->objects, g_ptr_array_unref);
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pw_array_for_each (i, &self->interests)
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g_clear_pointer (&i->constraints, g_variant_unref);
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pw_array_clear (&self->interests);
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g_weak_ref_clear (&self->core);
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G_OBJECT_CLASS (wp_object_manager_parent_class)->finalize (object);
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}
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static void
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wp_object_manager_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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WpObjectManager *self = WP_OBJECT_MANAGER (object);
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switch (property_id) {
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case PROP_CORE:
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g_weak_ref_set (&self->core, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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wp_object_manager_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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WpObjectManager *self = WP_OBJECT_MANAGER (object);
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switch (property_id) {
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case PROP_CORE:
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g_value_take_object (value, g_weak_ref_get (&self->core));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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wp_object_manager_class_init (WpObjectManagerClass * klass)
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{
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GObjectClass *object_class = (GObjectClass *) klass;
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object_class->finalize = wp_object_manager_finalize;
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object_class->get_property = wp_object_manager_get_property;
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object_class->set_property = wp_object_manager_set_property;
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/* Install the properties */
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g_object_class_install_property (object_class, PROP_CORE,
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g_param_spec_object ("core", "core", "The WpCore", WP_TYPE_CORE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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signals[SIGNAL_OBJECT_ADDED] = g_signal_new (
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"object-added", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
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0, NULL, NULL, NULL, G_TYPE_NONE, 1, G_TYPE_OBJECT);
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signals[SIGNAL_OBJECT_REMOVED] = g_signal_new (
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"object-removed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
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0, NULL, NULL, NULL, G_TYPE_NONE, 1, G_TYPE_OBJECT);
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signals[SIGNAL_OBJECTS_CHANGED] = g_signal_new (
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"objects-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
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0, NULL, NULL, NULL, G_TYPE_NONE, 0);
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}
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WpObjectManager *
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wp_object_manager_new (void)
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{
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return g_object_new (WP_TYPE_OBJECT_MANAGER, NULL);
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}
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void
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wp_object_manager_add_proxy_interest (WpObjectManager *self,
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guint32 iface_type, GVariant * constraints, WpProxyFeatures wanted_features)
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{
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struct interest *i;
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g_return_if_fail (WP_IS_OBJECT_MANAGER (self));
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g_return_if_fail (iface_type != 0);
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g_return_if_fail (constraints == NULL ||
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g_variant_is_of_type (constraints, G_VARIANT_TYPE ("aa{sv}")));
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/* grow the array by 1 struct interest and fill it in */
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i = pw_array_add (&self->interests, sizeof (struct interest));
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i->type = iface_type;
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i->for_proxy = TRUE;
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i->wanted_features = wanted_features;
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i->constraints = constraints ? g_variant_ref_sink (constraints) : NULL;
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}
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void
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wp_object_manager_add_object_interest (WpObjectManager *self,
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GType gtype, GVariant * constraints)
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{
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struct interest *i;
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g_return_if_fail (WP_IS_OBJECT_MANAGER (self));
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g_return_if_fail (G_TYPE_IS_OBJECT (gtype));
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g_return_if_fail (constraints == NULL ||
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g_variant_is_of_type (constraints, G_VARIANT_TYPE ("aa{sv}")));
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/* grow the array by 1 struct interest and fill it in */
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i = pw_array_add (&self->interests, sizeof (struct interest));
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i->type = gtype;
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i->for_proxy = FALSE;
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i->wanted_features = 0;
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i->constraints = constraints ? g_variant_ref_sink (constraints) : NULL;
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}
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/**
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* wp_object_manager_get_objects:
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* @self: the object manager
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* @type_filter: a #GType filter to get only the objects that are of this type,
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* or 0 to return all the objects
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*
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* Returns: (transfer full) (element-type GObject*): all the objects managed
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* by this #WpObjectManager that match the @type_filter
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*/
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GPtrArray *
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wp_object_manager_get_objects (WpObjectManager *self, GType type_filter)
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{
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GPtrArray *result = g_ptr_array_new_with_free_func (g_object_unref);
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guint i;
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for (i = 0; i < self->objects->len; i++) {
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gpointer obj = g_ptr_array_index (self->objects, i);
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if (type_filter == 0 || g_type_is_a (G_OBJECT_TYPE (obj), type_filter)) {
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g_ptr_array_add (result, g_object_ref (obj));
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}
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}
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return result;
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}
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static gboolean
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check_constraints (GVariant *constraints,
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WpProperties *global_props,
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GObject *object)
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{
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GVariantIter iter;
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GVariant *c;
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WpObjectManagerConstraintType ctype;
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g_autoptr (WpProperties) props = NULL;
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const gchar *prop_name, *prop_value;
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/* pipewire properties are contained in a GObj property called "properties" */
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if (object &&
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g_object_class_find_property (G_OBJECT_GET_CLASS (object), "properties"))
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g_object_get (object, "properties", &props, NULL);
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g_variant_iter_init (&iter, constraints);
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while (g_variant_iter_next (&iter, "@a{sv}", &c)) {
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GVariantDict dict = G_VARIANT_DICT_INIT (c);
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if (!g_variant_dict_lookup (&dict, "type", "i", &ctype)) {
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g_warning ("Invalid object manager constraint without a type");
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goto error;
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}
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switch (ctype) {
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case WP_OBJECT_MANAGER_CONSTRAINT_PW_GLOBAL_PROPERTY:
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if (!global_props)
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goto next;
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if (!g_variant_dict_lookup (&dict, "name", "&s", &prop_name)) {
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g_warning ("property constraint is without a property name");
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goto error;
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}
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if (!g_variant_dict_lookup (&dict, "value", "&s", &prop_value)) {
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g_warning ("property constraint is without a property value");
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goto error;
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}
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if (!g_strcmp0 (wp_properties_get (global_props, prop_name), prop_value))
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goto match;
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break;
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case WP_OBJECT_MANAGER_CONSTRAINT_PW_PROPERTY:
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if (!props)
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goto next;
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if (!g_variant_dict_lookup (&dict, "name", "&s", &prop_name)) {
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g_warning ("property constraint is without a property name");
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goto error;
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}
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if (!g_variant_dict_lookup (&dict, "value", "&s", &prop_value)) {
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g_warning ("property constraint is without a property value");
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goto error;
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}
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if (!g_strcmp0 (wp_properties_get (props, prop_name), prop_value))
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goto match;
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break;
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case WP_OBJECT_MANAGER_CONSTRAINT_G_PROPERTY:
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if (!object)
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goto next;
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if (!g_variant_dict_lookup (&dict, "name", "&s", &prop_name)) {
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g_warning ("property constraint is without a property name");
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goto error;
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}
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if (!g_variant_dict_lookup (&dict, "value", "&s", &prop_value)) {
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g_warning ("property constraint is without a property value");
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goto error;
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}
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if (!g_object_class_find_property (G_OBJECT_GET_CLASS (object), prop_name))
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goto next;
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if (({
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g_auto (GValue) value = G_VALUE_INIT;
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g_auto (GValue) str_value = G_VALUE_INIT;
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g_object_get_property (object, prop_name, &value);
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g_value_init (&str_value, G_TYPE_STRING);
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g_value_transform (&value, &str_value) &&
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!g_strcmp0 (g_value_get_string (&str_value), prop_value);
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}))
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goto match;
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break;
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default:
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g_warning ("Unknown constraint type '%d'", ctype);
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goto error;
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}
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next:
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{
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g_variant_dict_clear (&dict);
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g_clear_pointer (&c, g_variant_unref);
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continue;
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}
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match:
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{
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g_variant_dict_clear (&dict);
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g_clear_pointer (&c, g_variant_unref);
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return TRUE;
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}
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error:
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{
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g_autofree gchar *dbgstr = g_variant_print (c, TRUE);
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g_warning ("offending constraint was: %s", dbgstr);
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goto next;
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}
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}
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return FALSE;
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}
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static gboolean
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wp_object_manager_is_interested_in_object (WpObjectManager * self,
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GObject * object)
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{
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struct interest *i;
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pw_array_for_each (i, &self->interests) {
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if (!i->for_proxy
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&& g_type_is_a (G_OBJECT_TYPE (object), i->type)
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&& (!i->constraints ||
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check_constraints (i->constraints, NULL, object)))
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{
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return TRUE;
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}
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}
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return FALSE;
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}
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static gboolean
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wp_object_manager_is_interested_in_global (WpObjectManager * self,
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WpGlobal * global, WpProxyFeatures * wanted_features)
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{
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struct interest *i;
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pw_array_for_each (i, &self->interests) {
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if (i->for_proxy
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&& i->type == global->type
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&& (!i->constraints ||
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check_constraints (i->constraints, global->properties, NULL)))
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{
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*wanted_features = i->wanted_features;
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return TRUE;
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}
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}
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return FALSE;
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}
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static gboolean
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idle_emit_objects_changed (gpointer data)
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{
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WpObjectManager *self = WP_OBJECT_MANAGER (data);
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g_signal_emit (self, signals[SIGNAL_OBJECTS_CHANGED], 0);
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self->idle_objchanged_source = 0;
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return G_SOURCE_REMOVE;
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}
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static inline void
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schedule_emit_objects_changed (WpObjectManager * self)
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{
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/* TODO sync on the core instead */
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if (!self->idle_objchanged_source)
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self->idle_objchanged_source = g_idle_add (idle_emit_objects_changed, self);
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}
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static void
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on_proxy_ready (GObject * proxy, GAsyncResult * res, gpointer data)
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{
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g_autoptr (WpObjectManager) self = WP_OBJECT_MANAGER (data);
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g_ptr_array_add (self->objects, g_object_ref (proxy));
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g_signal_emit (self, signals[SIGNAL_OBJECT_ADDED], 0, proxy);
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schedule_emit_objects_changed (self);
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}
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void
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wp_object_manager_add_global (WpObjectManager * self, WpGlobal * global)
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{
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WpProxyFeatures features = 0;
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if (wp_object_manager_is_interested_in_global (self, global, &features)) {
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g_autoptr (WpProxy) proxy = g_weak_ref_get (&global->proxy);
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g_autoptr (WpCore) core = g_weak_ref_get (&self->core);
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if (!proxy) {
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proxy = wp_proxy_new_global (core, global);
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g_weak_ref_set (&global->proxy, proxy);
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}
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wp_proxy_augment (proxy, features, NULL, on_proxy_ready,
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g_object_ref (self));
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}
|
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}
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|
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void
|
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wp_object_manager_rm_global (WpObjectManager * self, guint32 id)
|
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{
|
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guint i;
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for (i = 0; i < self->objects->len; i++) {
|
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gpointer obj = g_ptr_array_index (self->objects, i);
|
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if (WP_IS_PROXY (obj) && id == wp_proxy_get_global_id (WP_PROXY (obj))) {
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g_signal_emit (self, signals[SIGNAL_OBJECT_REMOVED], 0, obj);
|
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g_ptr_array_remove_index_fast (self->objects, i);
|
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schedule_emit_objects_changed (self);
|
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return;
|
||||
}
|
||||
}
|
||||
}
|
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|
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void
|
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wp_object_manager_add_object (WpObjectManager * self, GObject * object)
|
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{
|
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if (wp_object_manager_is_interested_in_object (self, object)) {
|
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g_ptr_array_add (self->objects, g_object_ref (object));
|
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g_signal_emit (self, signals[SIGNAL_OBJECT_ADDED], 0, object);
|
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schedule_emit_objects_changed (self);
|
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}
|
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}
|
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|
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void
|
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wp_object_manager_rm_object (WpObjectManager * self, GObject * object)
|
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{
|
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guint index;
|
||||
if (g_ptr_array_find (self->objects, object, &index)) {
|
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g_signal_emit (self, signals[SIGNAL_OBJECT_REMOVED], 0, object);
|
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g_ptr_array_remove_index_fast (self->objects, index);
|
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schedule_emit_objects_changed (self);
|
||||
}
|
||||
}
|
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39
lib/wp/object-manager.h
Normal file
39
lib/wp/object-manager.h
Normal file
|
|
@ -0,0 +1,39 @@
|
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/* WirePlumber
|
||||
*
|
||||
* Copyright © 2019 Collabora Ltd.
|
||||
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
*/
|
||||
|
||||
#ifndef __WIREPLUMBER_OBJECT_MANAGER_H__
|
||||
#define __WIREPLUMBER_OBJECT_MANAGER_H__
|
||||
|
||||
#include <glib-object.h>
|
||||
#include "proxy.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
typedef enum {
|
||||
WP_OBJECT_MANAGER_CONSTRAINT_PW_GLOBAL_PROPERTY,
|
||||
WP_OBJECT_MANAGER_CONSTRAINT_PW_PROPERTY,
|
||||
WP_OBJECT_MANAGER_CONSTRAINT_G_PROPERTY,
|
||||
} WpObjectManagerConstraintType;
|
||||
|
||||
#define WP_TYPE_OBJECT_MANAGER (wp_object_manager_get_type ())
|
||||
G_DECLARE_FINAL_TYPE (WpObjectManager, wp_object_manager, WP, OBJECT_MANAGER, GObject)
|
||||
|
||||
WpObjectManager * wp_object_manager_new (void);
|
||||
|
||||
void wp_object_manager_add_proxy_interest (WpObjectManager *self,
|
||||
guint32 iface_type, GVariant * constraints,
|
||||
WpProxyFeatures wanted_features);
|
||||
void wp_object_manager_add_object_interest (WpObjectManager *self,
|
||||
GType gtype, GVariant * constraints);
|
||||
|
||||
GPtrArray * wp_object_manager_get_objects (WpObjectManager *self,
|
||||
GType type_filter);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Reference in a new issue