move sink input/source output move functions into two parts so that we can start the move, delete the original sink, create a new sink, finish the move; similar for source outputs

This commit is contained in:
Lennart Poettering 2009-01-23 22:38:30 +01:00
parent cf24b57279
commit 29cb778dcc
6 changed files with 258 additions and 125 deletions

View file

@ -249,11 +249,13 @@ pa_source_output* pa_source_output_new(
static void update_n_corked(pa_source_output *o, pa_source_output_state_t state) {
pa_assert(o);
if (!o->source)
return;
if (o->state == PA_SOURCE_OUTPUT_CORKED && state != PA_SOURCE_OUTPUT_CORKED)
pa_assert_se(o->source->n_corked -- >= 1);
else if (o->state != PA_SOURCE_OUTPUT_CORKED && state == PA_SOURCE_OUTPUT_CORKED)
o->source->n_corked++;
}
/* Called from main context */
@ -293,9 +295,12 @@ void pa_source_output_unlink(pa_source_output*o) {
if (o->direct_on_input)
pa_idxset_remove_by_data(o->direct_on_input->direct_outputs, o, NULL);
pa_idxset_remove_by_data(o->source->core->source_outputs, o, NULL);
if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
pa_source_output_unref(o);
pa_idxset_remove_by_data(o->core->source_outputs, o, NULL);
if (o->source)
if (pa_idxset_remove_by_data(o->source->outputs, o, NULL))
pa_source_output_unref(o);
if (o->client)
pa_idxset_remove_by_data(o->client->source_outputs, o, NULL);
@ -303,7 +308,7 @@ void pa_source_output_unlink(pa_source_output*o) {
update_n_corked(o, PA_SOURCE_OUTPUT_UNLINKED);
o->state = PA_SOURCE_OUTPUT_UNLINKED;
if (linked)
if (linked && o->source)
if (o->source->asyncmsgq)
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
@ -314,9 +319,11 @@ void pa_source_output_unlink(pa_source_output*o) {
pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], o);
}
pa_source_update_status(o->source);
if (o->source) {
pa_source_update_status(o->source);
o->source = NULL;
}
o->source = NULL;
pa_source_output_unref(o);
}
@ -624,6 +631,21 @@ pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
return o->resample_method;
}
/* Called from main context */
pa_bool_t pa_source_output_may_move(pa_source_output *o) {
pa_source_output_assert_ref(o);
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
return FALSE;
if (o->direct_on_input)
return FALSE;
return TRUE;
}
/* Called from main context */
pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
pa_source_output_assert_ref(o);
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
@ -632,10 +654,7 @@ pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
if (dest == o->source)
return TRUE;
if (o->flags & PA_SOURCE_OUTPUT_DONT_MOVE)
return FALSE;
if (o->direct_on_input)
if (!pa_source_output_may_move(o))
return FALSE;
if (pa_idxset_size(dest->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
@ -651,26 +670,52 @@ pa_bool_t pa_source_output_may_move_to(pa_source_output *o, pa_source *dest) {
}
/* Called from main context */
int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
int pa_source_output_start_move(pa_source_output *o) {
pa_source *origin;
pa_resampler *new_resampler;
pa_source_output_move_hook_data hook_data;
pa_source_output_assert_ref(o);
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
pa_source_assert_ref(dest);
pa_assert(o->source);
if (!pa_source_output_may_move(o))
return -1;
if (pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], o) < 0)
return -1;
origin = o->source;
if (dest == origin)
return 0;
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
if (!pa_source_output_may_move_to(o, dest))
return -1;
if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
pa_assert_se(origin->n_corked-- >= 1);
pa_idxset_remove_by_data(o->source->outputs, o, NULL);
o->source = NULL;
pa_source_update_status(origin);
return 0;
}
/* Called from main context */
int pa_source_output_finish_move(pa_source_output *o, pa_source *dest) {
pa_resampler *new_resampler;
pa_source_output_assert_ref(o);
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
pa_assert(!o->source);
pa_source_assert_ref(dest);
o->source = dest;
pa_idxset_put(o->source->outputs, o, NULL);
if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED)
o->source->n_corked++;
if (o->thread_info.resampler &&
pa_sample_spec_equal(&origin->sample_spec, &dest->sample_spec) &&
pa_channel_map_equal(&origin->channel_map, &dest->channel_map))
pa_sample_spec_equal(pa_resampler_input_sample_spec(o->thread_info.resampler), &dest->sample_spec) &&
pa_channel_map_equal(pa_resampler_input_channel_map(o->thread_info.resampler), &dest->channel_map))
/* Try to reuse the old resampler if possible */
new_resampler = o->thread_info.resampler;
@ -695,22 +740,6 @@ int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
} else
new_resampler = NULL;
hook_data.source_output = o;
hook_data.destination = dest;
pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE], &hook_data);
/* Okey, let's move it */
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_REMOVE_OUTPUT, o, 0, NULL) == 0);
pa_idxset_remove_by_data(origin->outputs, o, NULL);
pa_idxset_put(dest->outputs, o, NULL);
o->source = dest;
if (pa_source_output_get_state(o) == PA_SOURCE_OUTPUT_CORKED) {
pa_assert_se(origin->n_corked-- >= 1);
dest->n_corked++;
}
/* Replace resampler */
if (new_resampler != o->thread_info.resampler) {
if (o->thread_info.resampler)
@ -730,20 +759,40 @@ int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
&o->source->silence);
}
pa_source_update_status(origin);
pa_source_update_status(dest);
pa_assert_se(pa_asyncmsgq_send(o->source->asyncmsgq, PA_MSGOBJECT(o->source), PA_SOURCE_MESSAGE_ADD_OUTPUT, o, 0, NULL) == 0);
pa_log_debug("Successfully moved source output %i to %s.", o->index, dest->name);
/* Notify everyone */
if (o->moved)
o->moved(o);
pa_hook_fire(&o->source->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_POST], o);
pa_hook_fire(&o->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], o);
pa_subscription_post(o->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
pa_log_debug("Successfully moved source output %i from %s to %s.", o->index, origin->name, dest->name);
return 0;
}
/* Notify everyone */
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
/* Called from main context */
int pa_source_output_move_to(pa_source_output *o, pa_source *dest) {
pa_source_output_assert_ref(o);
pa_assert(PA_SOURCE_OUTPUT_IS_LINKED(o->state));
pa_assert(o->source);
pa_source_assert_ref(dest);
if (dest == o->source)
return 0;
if (!pa_source_output_may_move_to(o, dest))
return -1;
if (pa_source_output_start_move(o) < 0)
return -1;
if (pa_source_output_finish_move(o, dest) < 0)
return -1;
return 0;
}