[pulseaudio-discuss] [PATCH 09/19] dbus: Use hooks for default sink and source changes
David Henningsson
david.henningsson at canonical.com
Thu Apr 2 06:37:26 PDT 2015
On 2015-03-19 12:50, Juho Hämäläinen wrote:
> ---
> src/modules/dbus/iface-core.c | 150 +++++++++++++++++++++++++-----------------
> 1 file changed, 88 insertions(+), 62 deletions(-)
>
> diff --git a/src/modules/dbus/iface-core.c b/src/modules/dbus/iface-core.c
> index 3d58754..9555703 100644
> --- a/src/modules/dbus/iface-core.c
> +++ b/src/modules/dbus/iface-core.c
> @@ -109,6 +109,8 @@ struct pa_dbusiface_core {
> pa_sink *fallback_sink;
> pa_source *fallback_source;
>
> + pa_hook_slot *default_sink_changed_slot;
> + pa_hook_slot *default_source_changed_slot;
> pa_hook_slot *card_put_slot;
> pa_hook_slot *card_unlink_slot;
> pa_hook_slot *sink_input_put_slot;
> @@ -1576,76 +1578,14 @@ static void handle_stop_listening_for_signal(DBusConnection *conn, DBusMessage *
>
> 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_device *device_iface = NULL;
> pa_dbusiface_sample *sample_iface = NULL;
> pa_dbusiface_module *module_iface = NULL;
> DBusMessage *signal_msg = NULL;
> const char *object_path = NULL;
> - pa_sink *new_fallback_sink = NULL;
> - pa_source *new_fallback_source = NULL;
>
> pa_assert(c);
>
> switch (t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) {
> - case PA_SUBSCRIPTION_EVENT_SERVER:
> - new_fallback_sink = pa_namereg_get_default_sink(core);
> - new_fallback_source = pa_namereg_get_default_source(core);
> -
> - if (c->fallback_sink != new_fallback_sink) {
> - if (c->fallback_sink)
> - pa_sink_unref(c->fallback_sink);
> - c->fallback_sink = new_fallback_sink ? pa_sink_ref(new_fallback_sink) : NULL;
> -
> - if (c->fallback_sink) {
> - pa_assert_se(device_iface = pa_hashmap_get(c->sinks_by_index, PA_UINT32_TO_PTR(c->fallback_sink->index)));
> - object_path = pa_dbusiface_device_get_path(device_iface);
> -
> - pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
> - PA_DBUS_CORE_INTERFACE,
> - signals[SIGNAL_FALLBACK_SINK_UPDATED].name)));
> - pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
> - pa_dbus_protocol_send_signal(c->dbus_protocol, signal_msg);
> - dbus_message_unref(signal_msg);
> - signal_msg = NULL;
> -
> - } else {
> - pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
> - PA_DBUS_CORE_INTERFACE,
> - signals[SIGNAL_FALLBACK_SINK_UNSET].name)));
> - pa_dbus_protocol_send_signal(c->dbus_protocol, signal_msg);
> - dbus_message_unref(signal_msg);
> - signal_msg = NULL;
> - }
> - }
> -
> - if (c->fallback_source != new_fallback_source) {
> - if (c->fallback_source)
> - pa_source_unref(c->fallback_source);
> - c->fallback_source = new_fallback_source ? pa_source_ref(new_fallback_source) : NULL;
> -
> - if (c->fallback_source) {
> - pa_assert_se(device_iface = pa_hashmap_get(c->sources_by_index, PA_UINT32_TO_PTR(c->fallback_source->index)));
> - object_path = pa_dbusiface_device_get_path(device_iface);
> -
> - pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
> - PA_DBUS_CORE_INTERFACE,
> - signals[SIGNAL_FALLBACK_SOURCE_UPDATED].name)));
> - pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
> - pa_dbus_protocol_send_signal(c->dbus_protocol, signal_msg);
> - dbus_message_unref(signal_msg);
> - signal_msg = NULL;
> -
> - } else {
> - pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
> - PA_DBUS_CORE_INTERFACE,
> - signals[SIGNAL_FALLBACK_SOURCE_UNSET].name)));
> - pa_dbus_protocol_send_signal(c->dbus_protocol, signal_msg);
> - dbus_message_unref(signal_msg);
> - signal_msg = NULL;
> - }
> - }
> - break;
> -
> case PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE:
> if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_NEW) {
> pa_scache_entry *sample = NULL;
> @@ -1721,6 +1661,82 @@ static void subscription_cb(pa_core *core, pa_subscription_event_type_t t, uint3
> }
> }
>
> +static pa_hook_result_t default_sink_changed_cb(void *hook_data, void *call_data, void *slot_data) {
> + pa_dbusiface_core *c = slot_data;
> + pa_sink *new_fallback_sink = call_data;
> + pa_dbusiface_device *device_iface;
> + const char *object_path;
> + DBusMessage *signal_msg = NULL;
> +
> + pa_assert(c);
> +
> + if (c->fallback_sink != new_fallback_sink) {
> + if (c->fallback_sink)
> + pa_sink_unref(c->fallback_sink);
> + c->fallback_sink = new_fallback_sink ? pa_sink_ref(new_fallback_sink) : NULL;
> +
> + if (c->fallback_sink) {
> + pa_assert_se((device_iface = pa_hashmap_get(c->sinks_by_index, PA_UINT32_TO_PTR(c->fallback_sink->index))));
> + object_path = pa_dbusiface_device_get_path(device_iface);
> +
> + pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
> + PA_DBUS_CORE_INTERFACE,
> + signals[SIGNAL_FALLBACK_SINK_UPDATED].name)));
> + pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
> +
> + } else {
> + pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
> + PA_DBUS_CORE_INTERFACE,
> + signals[SIGNAL_FALLBACK_SINK_UNSET].name)));
> + }
> + }
> +
> + 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 default_source_changed_cb(void *hook_data, void *call_data, void *slot_data) {
> + pa_dbusiface_core *c = slot_data;
> + pa_source *new_fallback_source = call_data;
> + pa_dbusiface_device *device_iface;
> + const char *object_path;
> + DBusMessage *signal_msg = NULL;
> +
> + pa_assert(c);
> +
> + if (c->fallback_source != new_fallback_source) {
> + if (c->fallback_source)
> + pa_source_unref(c->fallback_source);
> + c->fallback_source = new_fallback_source ? pa_source_ref(new_fallback_source) : NULL;
> +
> + if (c->fallback_source) {
> + pa_assert_se((device_iface = pa_hashmap_get(c->sources_by_index, PA_UINT32_TO_PTR(c->fallback_source->index))));
> + object_path = pa_dbusiface_device_get_path(device_iface);
> +
> + pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
> + PA_DBUS_CORE_INTERFACE,
> + signals[SIGNAL_FALLBACK_SOURCE_UPDATED].name)));
> + pa_assert_se(dbus_message_append_args(signal_msg, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
> +
> + } else {
> + pa_assert_se((signal_msg = dbus_message_new_signal(PA_DBUS_CORE_OBJECT_PATH,
> + PA_DBUS_CORE_INTERFACE,
> + signals[SIGNAL_FALLBACK_SOURCE_UNSET].name)));
> + }
> + }
> +
> + 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 card_put_cb(void *hook_data, void *call_data, void *slot_data) {
> pa_dbusiface_core *c = slot_data;
> pa_card *card = call_data;
> @@ -2114,6 +2130,14 @@ pa_dbusiface_core *pa_dbusiface_core_new(pa_core *core) {
> c->clients = pa_hashmap_new_full(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func, NULL, (pa_free_cb_t) pa_dbusiface_client_free);
> c->fallback_sink = pa_namereg_get_default_sink(core);
> c->fallback_source = pa_namereg_get_default_source(core);
> + 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_REMOVED],
> + PA_HOOK_NORMAL, module_removed_cb, c);
The two above went into the wrong patch. Acked otherwise.
> + c->default_sink_changed_slot = pa_hook_connect(&core->hooks[PA_CORE_HOOK_DEFAULT_SINK_CHANGED],
> + 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->card_put_slot = pa_hook_connect(&core->hooks[PA_CORE_HOOK_CARD_PUT],
> PA_HOOK_NORMAL, card_put_cb, c);
> c->card_unlink_slot = pa_hook_connect(&core->hooks[PA_CORE_HOOK_CARD_UNLINK],
> @@ -2204,6 +2228,8 @@ 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->default_sink_changed_slot);
> + pa_hook_slot_free(c->default_source_changed_slot);
> pa_hook_slot_free(c->card_put_slot);
> pa_hook_slot_free(c->card_unlink_slot);
> pa_hook_slot_free(c->sink_input_put_slot);
>
--
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic
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