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add refernce counting for sinks, sources, sink-inputs and source-outputs

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@200 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-09-14 20:53:25 +00:00
parent 8c6593dabf
commit 6e019795bf
27 changed files with 426 additions and 132 deletions
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84
polyp/sink-input.c
View file

@ -41,7 +41,7 @@ struct pa_sink_input* pa_sink_input_new(struct pa_sink *s, const char *name, con
struct pa_resampler *resampler = NULL;
int r;
char st[256];
assert(s && spec);
assert(s && spec && s->state == PA_SINK_RUNNING);
if (pa_idxset_ncontents(s->inputs) >= PA_MAX_INPUTS_PER_SINK) {
pa_log(__FILE__": Failed to create sink input: too many inputs per sink.\n");
@ -53,6 +53,8 @@ struct pa_sink_input* pa_sink_input_new(struct pa_sink *s, const char *name, con
return NULL;
i = pa_xmalloc(sizeof(struct pa_sink_input));
i->ref = 1;
i->state = PA_SINK_INPUT_RUNNING;
i->name = pa_xstrdup(name);
i->client = NULL;
i->owner = NULL;
@ -86,26 +88,53 @@ struct pa_sink_input* pa_sink_input_new(struct pa_sink *s, const char *name, con
return i;
}
void pa_sink_input_free(struct pa_sink_input* i) {
assert(i);
void pa_sink_input_disconnect(struct pa_sink_input *i) {
assert(i && i->state == PA_SINK_INPUT_RUNNING && i->sink && i->sink->core);
assert(i->sink && i->sink->core);
pa_idxset_remove_by_data(i->sink->core->sink_inputs, i, NULL);
pa_idxset_remove_by_data(i->sink->inputs, i, NULL);
pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index);
i->sink = NULL;
i->peek = NULL;
i->drop = NULL;
i->kill = NULL;
i->get_latency = NULL;
i->state = PA_SINK_INPUT_DISCONNECTED;
}
static void sink_input_free(struct pa_sink_input* i) {
assert(i);
if (i->state != PA_SINK_INPUT_DISCONNECTED)
pa_sink_input_disconnect(i);
if (i->resampled_chunk.memblock)
pa_memblock_unref(i->resampled_chunk.memblock);
if (i->resampler)
pa_resampler_free(i->resampler);
pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index);
pa_xfree(i->name);
pa_xfree(i);
}
void pa_sink_input_unref(struct pa_sink_input *i) {
assert(i && i->ref >= 1);
if (!(--i->ref))
sink_input_free(i);
}
struct pa_sink_input* pa_sink_input_ref(struct pa_sink_input *i) {
assert(i && i->ref >= 1);
i->ref++;
return i;
}
void pa_sink_input_kill(struct pa_sink_input*i) {
assert(i);
assert(i && i->ref >= 1);
if (i->kill)
i->kill(i);
@ -113,7 +142,7 @@ void pa_sink_input_kill(struct pa_sink_input*i) {
pa_usec_t pa_sink_input_get_latency(struct pa_sink_input *i) {
pa_usec_t r = 0;
assert(i);
assert(i && i->ref >= 1);
if (i->get_latency)
r += i->get_latency(i);
@ -125,7 +154,11 @@ pa_usec_t pa_sink_input_get_latency(struct pa_sink_input *i) {
}
int pa_sink_input_peek(struct pa_sink_input *i, struct pa_memchunk *chunk) {
assert(i && chunk && i->peek && i->drop);
int ret = 0;
assert(i && chunk && i->ref >= 1);
if (!i->peek || !i->drop)
return -1;
if (i->corked)
return -1;
@ -133,13 +166,14 @@ int pa_sink_input_peek(struct pa_sink_input *i, struct pa_memchunk *chunk) {
if (!i->resampler)
return i->peek(i, chunk);
pa_sink_input_ref(i);
while (!i->resampled_chunk.memblock) {
struct pa_memchunk tchunk;
size_t l;
int ret;
if ((ret = i->peek(i, &tchunk)) < 0)
return ret;
goto finish;
assert(tchunk.length);
@ -158,14 +192,22 @@ int pa_sink_input_peek(struct pa_sink_input *i, struct pa_memchunk *chunk) {
assert(i->resampled_chunk.memblock && i->resampled_chunk.length);
*chunk = i->resampled_chunk;
pa_memblock_ref(i->resampled_chunk.memblock);
return 0;
ret = 0;
finish:
pa_sink_input_unref(i);
return ret;
}
void pa_sink_input_drop(struct pa_sink_input *i, const struct pa_memchunk *chunk, size_t length) {
assert(i && length);
assert(i && length && i->ref >= 1);
if (!i->resampler) {
i->drop(i, chunk, length);
if (i->drop)
i->drop(i, chunk, length);
return;
}
@ -182,7 +224,7 @@ void pa_sink_input_drop(struct pa_sink_input *i, const struct pa_memchunk *chunk
}
void pa_sink_input_set_volume(struct pa_sink_input *i, pa_volume_t volume) {
assert(i && i->sink && i->sink->core);
assert(i && i->sink && i->sink->core && i->ref >= 1);
if (i->volume != volume) {
i->volume = volume;
@ -192,7 +234,8 @@ void pa_sink_input_set_volume(struct pa_sink_input *i, pa_volume_t volume) {
void pa_sink_input_cork(struct pa_sink_input *i, int b) {
int n;
assert(i);
assert(i && i->ref >= 1);
n = i->corked && !b;
i->corked = b;
@ -201,7 +244,7 @@ void pa_sink_input_cork(struct pa_sink_input *i, int b) {
}
void pa_sink_input_set_rate(struct pa_sink_input *i, uint32_t rate) {
assert(i && i->resampler);
assert(i && i->resampler && i->ref >= 1);
if (i->sample_spec.rate == rate)
return;
@ -209,3 +252,10 @@ void pa_sink_input_set_rate(struct pa_sink_input *i, uint32_t rate) {
i->sample_spec.rate = rate;
pa_resampler_set_input_rate(i->resampler, rate);
}
void pa_sink_input_set_name(struct pa_sink_input *i, const char *name) {
assert(i && i->ref >= 1);
pa_xfree(i->name);
i->name = pa_xstrdup(name);
}