pipewire/pinos/client/mapper.c
2017-03-14 20:17:51 +01:00

86 lines
2.1 KiB
C

/* Simple Plugin API
* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdint.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <spa/id-map.h>
#include <pinos/client/map.h>
#define MAX_URIS 4096
typedef struct {
SpaIDMap map;
PinosMap uris;
} IDMap;
static uint32_t
id_map_get_id (SpaIDMap *map, const char *uri)
{
IDMap *this = SPA_CONTAINER_OF (map, IDMap, map);
uint32_t i = 0;
if (uri != NULL) {
for (i = 0; i < pinos_map_get_size (&this->uris); i++) {
if (strcmp (pinos_map_lookup_unchecked (&this->uris, i), uri) == 0)
return i;
}
i = pinos_map_insert_new (&this->uris, (char *)uri);
}
return i;
}
static const char *
id_map_get_uri (SpaIDMap *map, uint32_t id)
{
IDMap *this = SPA_CONTAINER_OF (map, IDMap, map);
if (id == SPA_ID_INVALID)
return NULL;
if (SPA_LIKELY (pinos_map_check_id (&this->uris, id)))
return pinos_map_lookup_unchecked (&this->uris, id);
return NULL;
}
static uint32_t
id_map_get_size (SpaIDMap *map)
{
IDMap *this = SPA_CONTAINER_OF (map, IDMap, map);
return pinos_map_get_size (&this->uris);
}
static IDMap default_id_map = {
{ sizeof (SpaIDMap),
NULL,
id_map_get_id,
id_map_get_uri,
id_map_get_size,
},
{ { NULL, } },
};
SpaIDMap *
pinos_id_map_get_default (void)
{
return &default_id_map.map;
}