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dbus: Use hooks for module new and removed events

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This commit is contained in:
Juho Hämäläinen 2015-03-19 13:50:57 +02:00 • committed by David Henningsson
parent 7e0d0b8b00
commit ae415b07a0
1 changed files with 51 additions and 41 deletions
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92
src/modules/dbus/iface-core.c
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@ -91,7 +91,6 @@ static void handle_stop_listening_for_signal(DBusConnection *conn, DBusMessage *
struct pa_dbusiface_core {
pa_core *core;
pa_subscription *subscription;
pa_dbus_protocol *dbus_protocol;
@ -109,6 +108,8 @@ struct pa_dbusiface_core {
pa_sink *fallback_sink;
pa_source *fallback_source;
pa_hook_slot *module_new_slot;
pa_hook_slot *module_removed_slot;
pa_hook_slot *default_sink_changed_slot;
pa_hook_slot *default_source_changed_slot;
pa_hook_slot *sample_cache_new_slot;
@ -1578,54 +1579,59 @@ static void handle_stop_listening_for_signal(DBusConnection *conn, DBusMessage *
pa_dbus_send_empty_reply(conn, msg);
}
static void subscription_cb(pa_core *core, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
pa_dbusiface_core *c = userdata;
pa_dbusiface_module *module_iface = NULL;
static pa_hook_result_t module_new_cb(void *hook_data, void *call_data, void *slot_data) {
pa_dbusiface_core *c = slot_data;
pa_module * module = call_data;
pa_dbusiface_module *module_iface;
const char *object_path;
DBusMessage *signal_msg = NULL;
const char *object_path = NULL;
pa_assert(c);
pa_assert(module);
switch (t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) {
case PA_SUBSCRIPTION_EVENT_MODULE:
if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_NEW) {
pa_module *module = NULL;
if (!(module_iface = pa_hashmap_get(c->modules, PA_UINT32_TO_PTR(module->index)))) {
module_iface = pa_dbusiface_module_new(module);
pa_assert_se(pa_hashmap_put(c->modules, PA_UINT32_TO_PTR(module->index), module_iface) >= 0);
if (!(module = pa_idxset_get_by_index(core->modules, idx)))
return; /* The module was removed immediately after creation. */
object_path = pa_dbusiface_module_get_path(module_iface);
if (!(module_iface = pa_hashmap_get(c->modules, PA_UINT32_TO_PTR(idx)))) {
module_iface = pa_dbusiface_module_new(module);
pa_hashmap_put(c->modules, PA_UINT32_TO_PTR(idx), module_iface);
}
pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
PA_DBUS_CORE_INTERFACE,
signals[SIGNAL_NEW_MODULE].name)));
pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
object_path = pa_dbusiface_module_get_path(module_iface);
pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
PA_DBUS_CORE_INTERFACE,
signals[SIGNAL_NEW_MODULE].name)));
pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
} else if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_REMOVE) {
if (!(module_iface = pa_hashmap_remove(c->modules, PA_UINT32_TO_PTR(idx))))
return;
object_path = pa_dbusiface_module_get_path(module_iface);
pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
PA_DBUS_CORE_INTERFACE,
signals[SIGNAL_MODULE_REMOVED].name)));
pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
pa_dbusiface_module_free(module_iface);
}
break;
}
if (signal_msg) {
pa_dbus_protocol_send_signal(c->dbus_protocol, signal_msg);
dbus_message_unref(signal_msg);
}
return PA_HOOK_OK;
}
static pa_hook_result_t module_removed_cb(void *hook_data, void *call_data, void *slot_data) {
pa_dbusiface_core *c = slot_data;
pa_module * module = call_data;
pa_dbusiface_module *module_iface;
const char *object_path;
DBusMessage *signal_msg = NULL;
pa_assert(c);
pa_assert(module);
pa_assert_se((module_iface = pa_hashmap_remove(c->modules, PA_UINT32_TO_PTR(module->index))));
object_path = pa_dbusiface_module_get_path(module_iface);
pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
PA_DBUS_CORE_INTERFACE,
signals[SIGNAL_MODULE_REMOVED].name)));
pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
pa_dbusiface_module_free(module_iface);
pa_dbus_protocol_send_signal(c->dbus_protocol, signal_msg);
dbus_message_unref(signal_msg);
return PA_HOOK_OK;
}
static pa_hook_result_t sample_cache_new_cb(void *hook_data, void *call_data, void *slot_data) {
@ -2132,7 +2138,6 @@ pa_dbusiface_core *pa_dbusiface_core_new(pa_core *core) {
c = pa_xnew(pa_dbusiface_core, 1);
c->core = core;
c->subscription = pa_subscription_new(core, PA_SUBSCRIPTION_MASK_ALL, subscription_cb, c);
c->dbus_protocol = pa_dbus_protocol_get(core);
c->cards = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL, (pa_free_cb_t) pa_dbusiface_card_free);
c->sinks_by_index = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL,
@ -2154,6 +2159,10 @@ pa_dbusiface_core *pa_dbusiface_core_new(pa_core *core) {
PA_HOOK_NORMAL, default_sink_changed_cb, c);
c->default_source_changed_slot = pa_hook_connect(&core->hooks[PA_CORE_HOOK_DEFAULT_SOURCE_CHANGED],
PA_HOOK_NORMAL, default_source_changed_cb, c);
c->module_new_slot = pa_hook_connect(&core->hooks[PA_CORE_HOOK_MODULE_NEW],
PA_HOOK_NORMAL, module_new_cb, c);
c->module_removed_slot = pa_hook_connect(&core->hooks[PA_CORE_HOOK_MODULE_UNLINK],
PA_HOOK_NORMAL, module_removed_cb, c);
c->sample_cache_new_slot = pa_hook_connect(&core->hooks[PA_CORE_HOOK_SAMPLE_CACHE_NEW],
PA_HOOK_NORMAL, sample_cache_new_cb, c);
c->sample_cache_removed_slot = pa_hook_connect(&core->hooks[PA_CORE_HOOK_SAMPLE_CACHE_UNLINK],
@ -2237,7 +2246,6 @@ void pa_dbusiface_core_free(pa_dbusiface_core *c) {
/* Note that the order of freeing is important below.
* Do not change it for the sake of tidiness without checking! */
pa_subscription_free(c->subscription);
pa_hashmap_free(c->cards);
pa_hashmap_free(c->sinks_by_path);
pa_hashmap_free(c->sinks_by_index);
@ -2248,6 +2256,8 @@ void pa_dbusiface_core_free(pa_dbusiface_core *c) {
pa_hashmap_free(c->samples);
pa_hashmap_free(c->modules);
pa_hashmap_free(c->clients);
pa_hook_slot_free(c->module_new_slot);
pa_hook_slot_free(c->module_removed_slot);
pa_hook_slot_free(c->default_sink_changed_slot);
pa_hook_slot_free(c->default_source_changed_slot);
pa_hook_slot_free(c->sample_cache_new_slot);