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/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "scache.h"
#include "sink-input.h"
#include "mainloop.h"
#include "sample-util.h"
#include "play-memchunk.h"
#include "xmalloc.h"
#include "subscribe.h"
#include "namereg.h"
#define UNLOAD_POLL_TIME 2
static void timeout_callback(struct pa_mainloop_api *m, struct pa_time_event*e, const struct timeval *tv, void *userdata) {
struct pa_core *c = userdata;
struct timeval ntv;
assert(c && c->mainloop == m && c->scache_auto_unload_event == e);
pa_scache_unload_unused(c);
gettimeofday(&ntv, NULL);
ntv.tv_sec += UNLOAD_POLL_TIME;
m->time_restart(e, &ntv);
}
static void free_entry(struct pa_scache_entry *e) {
assert(e);
pa_namereg_unregister(e->core, e->name);
pa_subscription_post(e->core, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_REMOVE, e->index);
pa_xfree(e->name);
if (e->memchunk.memblock)
pa_memblock_unref(e->memchunk.memblock);
pa_xfree(e);
}
int pa_scache_add_item(struct pa_core *c, const char *name, struct pa_sample_spec *ss, struct pa_memchunk *chunk, uint32_t *index, int auto_unload) {
struct pa_scache_entry *e;
int put;
assert(c && name);
if ((e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE, 0))) {
put = 0;
if (e->memchunk.memblock)
pa_memblock_unref(e->memchunk.memblock);
assert(e->core == c);
} else {
put = 1;
e = pa_xmalloc(sizeof(struct pa_scache_entry));
if (!pa_namereg_register(c, name, PA_NAMEREG_SAMPLE, e, 1)) {
pa_xfree(e);
return -1;
}
e->name = pa_xstrdup(name);
e->core = c;
}
e->volume = PA_VOLUME_NORM;
e->auto_unload = auto_unload;
e->last_used_time = 0;
if (ss)
e->sample_spec = *ss;
else
memset(&e->sample_spec, 0, sizeof(struct pa_sample_spec));
if (chunk) {
e->memchunk = *chunk;
pa_memblock_ref(e->memchunk.memblock);
} else {
e->memchunk.memblock = NULL;
e->memchunk.index = e->memchunk.length = 0;
}
if (put) {
if (!c->scache) {
c->scache = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
assert(c->scache);
}
pa_idxset_put(c->scache, e, &e->index);
pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_NEW, e->index);
} else
pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_CHANGE, e->index);
if (index)
*index = e->index;
if (!c->scache_auto_unload_event) {
struct timeval ntv;
gettimeofday(&ntv, NULL);
ntv.tv_sec += UNLOAD_POLL_TIME;
c->scache_auto_unload_event = c->mainloop->time_new(c->mainloop, &ntv, timeout_callback, c);
}
return 0;
}
int pa_scache_remove_item(struct pa_core *c, const char *name) {
struct pa_scache_entry *e;
assert(c && name);
if (!(e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE, 0)))
return -1;
if (pa_idxset_remove_by_data(c->scache, e, NULL) != e)
assert(0);
free_entry(e);
return 0;
}
static void free_cb(void *p, void *userdata) {
struct pa_scache_entry *e = p;
assert(e);
free_entry(e);
}
void pa_scache_free(struct pa_core *c) {
assert(c);
if (c->scache) {
pa_idxset_free(c->scache, free_cb, NULL);
c->scache = NULL;
}
if (c->scache_auto_unload_event)
c->mainloop->time_free(c->scache_auto_unload_event);
}
int pa_scache_play_item(struct pa_core *c, const char *name, struct pa_sink *sink, uint32_t volume) {
struct pa_scache_entry *e;
assert(c && name && sink);
if (!(e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE, 1)))
return -1;
if (!e->memchunk.memblock)
return -1;
if (pa_play_memchunk(sink, name, &e->sample_spec, &e->memchunk, pa_volume_multiply(volume, e->volume)) < 0)
return -1;
if (e->auto_unload)
time(&e->last_used_time);
return 0;
}
const char * pa_scache_get_name_by_id(struct pa_core *c, uint32_t id) {
struct pa_scache_entry *e;
assert(c && id != PA_IDXSET_INVALID);
if (!c->scache || !(e = pa_idxset_get_by_index(c->scache, id)))
return NULL;
return e->name;
}
uint32_t pa_scache_get_id_by_name(struct pa_core *c, const char *name) {
struct pa_scache_entry *e;
assert(c && name);
if (!(e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE, 1)))
return PA_IDXSET_INVALID;
return e->index;
}
uint32_t pa_scache_total_size(struct pa_core *c) {
struct pa_scache_entry *e;
uint32_t index;
uint32_t sum = 0;
if (!c->scache)
return 0;
for (e = pa_idxset_first(c->scache, &index); e; e = pa_idxset_next(c->scache, &index))
sum += e->memchunk.length;
return sum;
}
static int unload_func(void *p, uint32_t index, int *del, void *userdata) {
struct pa_scache_entry *e = p;
time_t *now = userdata;
assert(e);
if (!e->auto_unload)
return 0;
if (e->last_used_time + e->core->scache_idle_time > *now)
return 0;
free_entry(e);
*del = 1;
return 0;
}
void pa_scache_unload_unused(struct pa_core *c) {
time_t now;
assert(c);
if (!c->scache)
return;
time(&now);
pa_idxset_foreach(c->scache, unload_func, &now);
}
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