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media-session: stop/start bluez monitor when seat inactive/active

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When current user is no longer active on the seat, unregister the bluez
handler. This disconnects all bluez devices.

When the user becomes active on a seat, start bluez monitor again.
This will also reconnect devices.
This commit is contained in:
Pauli Virtanen 2021-04-10 17:44:56 +03:00
parent 0e80a2497a
commit 1c550d850b
1 changed files with 66 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

87
src/examples/media-session/bluez-monitor.c
View file

@ -531,31 +531,88 @@ static const struct spa_device_events bluez5_enum_callbacks =
.object_info = bluez5_enum_object_info,
};
static void session_destroy(void *data)
static void unload_bluez_handle(struct impl *impl)
{
struct impl *impl = data;
struct device *device;
if (impl->handle == NULL)
return;
spa_list_consume(device, &impl->device_list, link)
bluez5_device_free(device);
spa_hook_remove(&impl->session_listener);
spa_hook_remove(&impl->listener);
pw_unload_spa_handle(impl->handle);
impl->handle = NULL;
}
static int load_bluez_handle(struct impl *impl)
{
struct pw_context *context = impl->session->context;
void *iface;
int res;
if (impl->handle != NULL)
return 0;
impl->handle = pw_context_load_spa_handle(context, SPA_NAME_API_BLUEZ5_ENUM_DBUS, &impl->props->dict);
if (impl->handle == NULL) {
res = -errno;
pw_log_info("can't load %s: %m", SPA_NAME_API_BLUEZ5_ENUM_DBUS);
goto fail;
}
if ((res = spa_handle_get_interface(impl->handle, SPA_TYPE_INTERFACE_Device, &iface)) < 0) {
pw_log_error("can't get Device interface: %s", spa_strerror(res));
goto fail;
}
impl->monitor = iface;
spa_device_add_listener(impl->monitor, &impl->listener,
&bluez5_enum_callbacks, impl);
return 0;
fail:
if (impl->handle)
pw_unload_spa_handle(impl->handle);
impl->handle = NULL;
return res;
}
static void session_destroy(void *data)
{
struct impl *impl = data;
unload_bluez_handle(impl);
spa_hook_remove(&impl->session_listener);
pw_properties_free(impl->props);
pw_properties_free(impl->conf);
free(impl);
}
static void seat_active(void *data, bool active)
{
struct impl *impl = data;
if (active) {
pw_log_info(NAME ": seat active, starting bluetooth");
load_bluez_handle(impl);
} else {
pw_log_info(NAME ": seat not active, stopping bluetooth");
unload_bluez_handle(impl);
}
}
static const struct sm_media_session_events session_events = {
SM_VERSION_MEDIA_SESSION_EVENTS,
.destroy = session_destroy,
.seat_active = seat_active,
};
int sm_bluez5_monitor_start(struct sm_media_session *session)
{
struct pw_context *context = session->context;
int res;
void *iface;
struct impl *impl;
const char *str;
@ -566,6 +623,8 @@ int sm_bluez5_monitor_start(struct sm_media_session *session)
}
impl->session = session;
spa_list_init(&impl->device_list);
if ((impl->conf = pw_properties_new(NULL, NULL)) == NULL) {
res = -errno;
goto out_free;
@ -583,21 +642,8 @@ int sm_bluez5_monitor_start(struct sm_media_session *session)
pw_properties_set(impl->props, "api.bluez5.connection-info", "true");
impl->handle = pw_context_load_spa_handle(context, SPA_NAME_API_BLUEZ5_ENUM_DBUS, &impl->props->dict);
if (impl->handle == NULL) {
res = -errno;
pw_log_info("can't load %s: %m", SPA_NAME_API_BLUEZ5_ENUM_DBUS);
if ((res = load_bluez_handle(impl)) < 0)
goto out_free;
}
if ((res = spa_handle_get_interface(impl->handle, SPA_TYPE_INTERFACE_Device, &iface)) < 0) {
pw_log_error("can't get Device interface: %s", spa_strerror(res));
goto out_free;
}
impl->monitor = iface;
spa_list_init(&impl->device_list);
spa_device_add_listener(impl->monitor, &impl->listener,
&bluez5_enum_callbacks, impl);
sm_media_session_add_listener(session, &impl->session_listener,
&session_events, impl);
@ -605,8 +651,7 @@ int sm_bluez5_monitor_start(struct sm_media_session *session)
return 0;
out_free:
if (impl->handle)
pw_unload_spa_handle(impl->handle);
unload_bluez_handle(impl);
if (impl->conf)
pw_properties_free(impl->conf);
if (impl->props)