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138 lines
3.1 KiB
C
138 lines
3.1 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <pulse/xmalloc.h>
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#include <pulsecore/log.h>
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#include <pulsecore/macro.h>
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#include "shared.h"
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typedef struct pa_shared {
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char *name; /* Points to memory allocated by the shared property system */
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void *data; /* Points to memory maintained by the caller */
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} pa_shared;
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/* Allocate a new shared property object */
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static pa_shared* shared_new(const char *name, void *data) {
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pa_shared* p;
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pa_assert(name);
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pa_assert(data);
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p = pa_xnew(pa_shared, 1);
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p->name = pa_xstrdup(name);
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p->data = data;
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return p;
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}
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/* Free a shared property object */
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static void shared_free(pa_shared *p) {
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pa_assert(p);
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pa_xfree(p->name);
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pa_xfree(p);
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}
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void* pa_shared_get(pa_core *c, const char *name) {
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pa_shared *p;
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pa_assert(c);
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pa_assert(name);
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pa_assert(c->shared);
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if (!(p = pa_hashmap_get(c->shared, name)))
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return NULL;
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return p->data;
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}
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int pa_shared_set(pa_core *c, const char *name, void *data) {
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pa_shared *p;
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pa_assert(c);
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pa_assert(name);
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pa_assert(data);
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pa_assert(c->shared);
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if (pa_hashmap_get(c->shared, name))
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return -1;
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p = shared_new(name, data);
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pa_hashmap_put(c->shared, p->name, p);
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return 0;
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}
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int pa_shared_remove(pa_core *c, const char *name) {
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pa_shared *p;
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pa_assert(c);
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pa_assert(name);
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pa_assert(c->shared);
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if (!(p = pa_hashmap_remove(c->shared, name)))
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return -1;
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shared_free(p);
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return 0;
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}
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void pa_shared_init(pa_core *c) {
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pa_assert(c);
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c->shared = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
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}
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void pa_shared_cleanup(pa_core *c) {
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pa_assert(c);
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if (!c->shared)
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return;
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pa_assert(pa_hashmap_isempty(c->shared));
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pa_hashmap_free(c->shared, NULL, NULL);
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c->shared = NULL;
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}
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void pa_shared_dump(pa_core *c, pa_strbuf *s) {
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void *state = NULL;
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pa_shared *p;
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pa_assert(c);
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pa_assert(s);
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while ((p = pa_hashmap_iterate(c->shared, &state, NULL)))
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pa_strbuf_printf(s, "[%s] -> [%p]\n", p->name, p->data);
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}
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int pa_shared_replace(pa_core *c, const char *name, void *data) {
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pa_assert(c);
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pa_assert(name);
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pa_shared_remove(c, name);
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return pa_shared_set(c, name, data);
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}
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