sofia-resolv/sres_cache.h

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/*
 * This file is part of the Sofia-SIP package
 *
 * Copyright (C) 2005 Nokia Corporation.
 *
 * Contact: Pekka Pessi <pekka.pessi@nokia-email.address.hidden>
 *
 * This library 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.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser 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
 *
 */

#ifndef SOFIA_RESOLV_SRES_CACHE_H

#define SOFIA_RESOLV_SRES_CACHE_H

#include "sofia-resolv/sres_config.h"

#ifdef __cplusplus
extern "C" {
#endif

#ifndef SRES_CACHE_T
#define SRES_CACHE_T

typedef struct sres_cache sres_cache_t;
#endif

#ifndef SRES_RECORD_T
#define SRES_RECORD_T

typedef union sres_record sres_record_t;
#endif

enum {
  SRES_CACHE_TIMER_INTERVAL = 5,
#define SRES_CACHE_TIMER_INTERVAL (SRES_CACHE_TIMER_INTERVAL)
};

SRESPUBFUN sres_cache_t *sres_cache_new(int n);

SRESPUBFUN sres_cache_t *sres_cache_ref(sres_cache_t *);

SRESPUBFUN void sres_cache_unref(sres_cache_t *);

SRESPUBFUN int sres_cache_get(sres_cache_t *cache,
                              uint16_t type,
                              char const *domain,
                              sres_record_t ***return_cached);

SRESPUBFUN int sres_cache_filter(sres_cache_t *cache,
                                 sres_record_t **answers,
                                 uint16_t type);

SRESPUBFUN void sres_cache_free_answers(sres_cache_t *, sres_record_t **);

SRESPUBFUN void sres_cache_free_one(sres_cache_t *, sres_record_t *answer);

SRESPUBFUN
sres_record_t **sres_cache_copy_answers(sres_cache_t *, sres_record_t **);

SRESPUBFUN void sres_cache_clean(sres_cache_t *cache, time_t now);

SRESPUBFUN
sres_record_t *sres_cache_alloc_record(sres_cache_t *cache,
                                       sres_record_t const *template,
                                       size_t extra);

SRESPUBFUN void sres_cache_free_record(sres_cache_t *cache, void *rr);

SRESPUBFUN void sres_cache_store(sres_cache_t *, sres_record_t *, time_t now);

SRESPUBFUN int sres_cache_set_srv_priority(sres_cache_t *,
                                           char const *domain,
                                           char const *target,
                                           uint16_t port,
                                           uint32_t newttl,
                                           uint16_t newprio);

#ifdef __cplusplus
}
#endif

#endif /* SOFIA_RESOLV_SRES_CACHED_H */