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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 Lesser 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 Lesser 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.
***/
#include <assert.h>
#include <polyp/xmalloc.h>
#include <polypcore/log.h>
#include "props.h"
typedef struct pa_property {
char *name; /* Points to memory allocated by the property subsystem */
void *data; /* Points to memory maintained by the caller */
} pa_property;
/* Allocate a new property object */
static pa_property* property_new(const char *name, void *data) {
pa_property* p;
assert(name && data);
p = pa_xmalloc(sizeof(pa_property));
p->name = pa_xstrdup(name);
p->data = data;
return p;
}
/* Free a property object */
static void property_free(pa_property *p) {
assert(p);
pa_xfree(p->name);
pa_xfree(p);
}
void* pa_property_get(pa_core *c, const char *name) {
pa_property *p;
assert(c && name && c->properties);
if (!(p = pa_hashmap_get(c->properties, name)))
return NULL;
return p->data;
}
int pa_property_set(pa_core *c, const char *name, void *data) {
pa_property *p;
assert(c && name && data && c->properties);
if (pa_hashmap_get(c->properties, name))
return -1;
p = property_new(name, data);
pa_hashmap_put(c->properties, p->name, p);
return 0;
}
int pa_property_remove(pa_core *c, const char *name) {
pa_property *p;
assert(c && name && c->properties);
if (!(p = pa_hashmap_remove(c->properties, name)))
return -1;
property_free(p);
return 0;
}
void pa_property_init(pa_core *c) {
assert(c);
c->properties = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
}
void pa_property_cleanup(pa_core *c) {
assert(c);
if (!c->properties)
return;
assert(!pa_hashmap_size(c->properties));
pa_hashmap_free(c->properties, NULL, NULL);
c->properties = NULL;
}
void pa_property_dump(pa_core *c, pa_strbuf *s) {
void *state = NULL;
pa_property *p;
assert(c && s);
while ((p = pa_hashmap_iterate(c->properties, &state, NULL)))
pa_strbuf_printf(s, "[%s] -> [%p]\n", p->name, p->data);
}
int pa_property_replace(pa_core *c, const char *name, void *data) {
assert(c && name);
pa_property_remove(c, name);
return pa_property_set(c, name, data);
}
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