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/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio 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 Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pulse/xmalloc.h>
#include <pulsecore/macro.h>
#include "shared.h"
typedef struct pa_shared {
char *name; /* Points to memory allocated by the shared property system */
void *data; /* Points to memory maintained by the caller */
} pa_shared;
/* Allocate a new shared property object */
static pa_shared* shared_new(const char *name, void *data) {
pa_shared* p;
pa_assert(name);
pa_assert(data);
p = pa_xnew(pa_shared, 1);
p->name = pa_xstrdup(name);
p->data = data;
return p;
}
/* Free a shared property object */
static void shared_free(pa_shared *p) {
pa_assert(p);
pa_xfree(p->name);
pa_xfree(p);
}
void* pa_shared_get(pa_core *c, const char *name) {
pa_shared *p;
pa_assert(c);
pa_assert(name);
pa_assert(c->shared);
if (!(p = pa_hashmap_get(c->shared, name)))
return NULL;
return p->data;
}
int pa_shared_set(pa_core *c, const char *name, void *data) {
pa_shared *p;
pa_assert(c);
pa_assert(name);
pa_assert(data);
pa_assert(c->shared);
if (pa_hashmap_get(c->shared, name))
return -1;
p = shared_new(name, data);
pa_hashmap_put(c->shared, p->name, p);
return 0;
}
int pa_shared_remove(pa_core *c, const char *name) {
pa_shared *p;
pa_assert(c);
pa_assert(name);
pa_assert(c->shared);
if (!(p = pa_hashmap_remove(c->shared, name)))
return -1;
shared_free(p);
return 0;
}
void pa_shared_dump(pa_core *c, pa_strbuf *s) {
void *state = NULL;
pa_shared *p;
pa_assert(c);
pa_assert(s);
while ((p = pa_hashmap_iterate(c->shared, &state, NULL)))
pa_strbuf_printf(s, "[%s] -> [%p]\n", p->name, p->data);
}
int pa_shared_replace(pa_core *c, const char *name, void *data) {
pa_assert(c);
pa_assert(name);
(void) pa_shared_remove(c, name);
return pa_shared_set(c, name, data);
}
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