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global: add registering signal

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Add a new signal that can be used to register child objects
This commit is contained in:
Wim Taymans 2018-04-24 17:07:56 +02:00
parent 23dbf76e85
commit 592cdfe90d
2 changed files with 45 additions and 26 deletions
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69
src/pipewire/global.c
View file

@ -29,8 +29,9 @@
#include <pipewire/global.h>
/** \cond */
struct global_impl {
struct impl {
struct pw_global this;
bool registered;
};
/** \endcond */
@ -64,10 +65,10 @@ pw_global_new(struct pw_core *core,
struct pw_properties *properties,
void *object)
{
struct global_impl *impl;
struct impl *impl;
struct pw_global *this;
impl = calloc(1, sizeof(struct global_impl));
impl = calloc(1, sizeof(struct impl));
if (impl == NULL)
return NULL;
@ -78,12 +79,13 @@ pw_global_new(struct pw_core *core,
this->version = version;
this->object = object;
this->properties = properties;
this->id = SPA_ID_INVALID;
this->id = pw_map_insert_new(&core->globals, this);
spa_hook_list_init(&this->listener_list);
pw_log_debug("global %p: new %s", this,
spa_type_map_get_type(core->type.map, this->type));
pw_log_debug("global %p: new %s %d", this,
spa_type_map_get_type(core->type.map, this->type),
this->id);
return this;
}
@ -102,6 +104,7 @@ pw_global_register(struct pw_global *global,
struct pw_client *owner,
struct pw_global *parent)
{
struct impl *impl = SPA_CONTAINER_OF(global, struct impl, this);
struct pw_resource *registry;
struct pw_core *core = global->core;
@ -114,12 +117,8 @@ pw_global_register(struct pw_global *global,
parent = global;
global->parent = parent;
global->id = pw_map_insert_new(&core->globals, global);
spa_list_append(&core->global_list, &global->link);
pw_log_debug("global %p: add %u owner %p parent %p", global, global->id, owner, parent);
spa_hook_list_call(&core->listener_list, struct pw_core_events, global_added, global);
impl->registered = true;
spa_list_for_each(registry, &core->registry_resource_list, link) {
uint32_t permissions = pw_global_get_permissions(global, registry->client);
@ -134,6 +133,37 @@ pw_global_register(struct pw_global *global,
global->properties ?
&global->properties->dict : NULL);
}
spa_hook_list_call(&global->listener_list, struct pw_global_events, registering);
pw_log_debug("global %p: add %u owner %p parent %p", global, global->id, owner, parent);
spa_hook_list_call(&core->listener_list, struct pw_core_events, global_added, global);
return 0;
}
static int global_unregister(struct pw_global *global)
{
struct impl *impl = SPA_CONTAINER_OF(global, struct impl, this);
struct pw_core *core = global->core;
struct pw_resource *registry;
if (!impl->registered)
return 0;
spa_list_for_each(registry, &core->registry_resource_list, link) {
uint32_t permissions = pw_global_get_permissions(global, registry->client);
pw_log_debug("registry %p: global %d %08x", registry, global->id, permissions);
if (PW_PERM_IS_R(permissions))
pw_registry_resource_global_remove(registry, global->id);
}
spa_list_remove(&global->link);
spa_hook_list_call(&core->listener_list, struct pw_core_events,
global_removed, global);
impl->registered = false;
return 0;
}
@ -230,24 +260,13 @@ pw_global_bind(struct pw_global *global, struct pw_client *client, uint32_t perm
void pw_global_destroy(struct pw_global *global)
{
struct pw_core *core = global->core;
struct pw_resource *registry;
global_unregister(global);
pw_log_debug("global %p: destroy %u", global, global->id);
spa_hook_list_call(&global->listener_list, struct pw_global_events, destroy);
if (global->id != SPA_ID_INVALID) {
spa_list_for_each(registry, &core->registry_resource_list, link) {
uint32_t permissions = pw_global_get_permissions(global, registry->client);
pw_log_debug("registry %p: global %d %08x", registry, global->id, permissions);
if (PW_PERM_IS_R(permissions))
pw_registry_resource_global_remove(registry, global->id);
}
pw_map_remove(&core->globals, global->id);
spa_list_remove(&global->link);
spa_hook_list_call(&core->listener_list, struct pw_core_events, global_removed, global);
}
pw_map_remove(&core->globals, global->id);
pw_log_debug("global %p: free", global);
spa_hook_list_call(&global->listener_list, struct pw_global_events, free);

2
src/pipewire/global.h
View file

@ -60,9 +60,9 @@ struct pw_global_events {
#define PW_VERSION_GLOBAL_EVENTS 0
uint32_t version;
void (*registering) (void *data);
/** The global is destroyed */
void (*destroy) (void *data);
/** The global is freed */
void (*free) (void *data);