static int purge_sink(struct GrooveSink *sink) {
struct GrooveSinkPrivate *s = (struct GrooveSinkPrivate *) sink;
groove_queue_purge(s->audioq);
struct GroovePlaylist *playlist = sink->playlist;
struct GroovePlaylistPrivate *p = (struct GroovePlaylistPrivate *) playlist;
struct GroovePlaylistItem *item = p->purge_item;
if (sink->purge)
sink->purge(sink, item);
return 0;
}
static void sink_purge(struct GrooveSink *sink, struct GroovePlaylistItem *item) {
struct GrooveFingerprinterPrivate *p = (GrooveFingerprinterPrivate *)sink->userdata;
pthread_mutex_lock(&p->info_head_mutex);
p->purge_item = item;
groove_queue_purge(p->info_queue);
p->purge_item = NULL;
if (p->info_head == item) {
p->info_head = NULL;
p->info_pos = -1.0;
}
pthread_cond_signal(&p->drain_cond);
pthread_mutex_unlock(&p->info_head_mutex);
}
static void sink_purge(struct GrooveSink *sink, struct GroovePlaylistItem *item) {
struct GrooveEncoder *encoder = sink->userdata;
struct GrooveEncoderPrivate *e = (struct GrooveEncoderPrivate *) encoder;
pthread_mutex_lock(&e->encode_head_mutex);
e->purge_item = item;
groove_queue_purge(e->audioq);
e->purge_item = NULL;
if (e->encode_head == item) {
e->encode_head = NULL;
e->encode_pos = -1.0;
}
pthread_cond_signal(&e->drain_cond);
pthread_mutex_unlock(&e->encode_head_mutex);
}