gnunet-service-setu_strata_estimator.h

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/*
      This file is part of GNUnet
      Copyright (C) 2012 GNUnet e.V.
 
      GNUnet is free software: you can redistribute it and/or modify it
      under the terms of the GNU Affero General Public License as published
      by the Free Software Foundation, either version 3 of the License,
      or (at your option) any later version.
 
      GNUnet 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
      Affero General Public License for more details.
 
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
     SPDX-License-Identifier: AGPL3.0-or-later
 */
 
#ifndef GNUNET_SERVICE_SETU_STRATA_ESTIMATOR_H
#define GNUNET_SERVICE_SETU_STRATA_ESTIMATOR_H
 
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_util_lib.h"
 
#ifdef __cplusplus
extern "C"
{
#if 0                           /* keep Emacsens' auto-indent happy */
}
#endif
#endif
 
 
struct StrataEstimator
{
  struct InvertibleBloomFilter **strata;
 
  unsigned int strata_count;
 
  unsigned int ibf_size;
};
 
struct MultiStrataEstimator
{
  struct StrataEstimator **stratas;
 
  uint8_t size;
 
};
 
uint8_t
determine_strata_count (uint64_t avg_element_size,
                        uint64_t element_count);
 
 
size_t
strata_estimator_write (struct MultiStrataEstimator *se,
                        uint16_t se_ibf_total_size,
                        uint8_t number_se_send,
                        void *buf);
 
 
int
strata_estimator_read (const void *buf,
                       size_t buf_len,
                       int is_compressed,
                       uint8_t number_se_received,
                       uint16_t se_ibf_total_size,
                       struct MultiStrataEstimator *se);
 
 
struct MultiStrataEstimator *
strata_estimator_create (unsigned int strata_count,
                         uint32_t ibf_size,
                         uint8_t ibf_hashnum);
 
 
void
strata_estimator_difference (const struct MultiStrataEstimator *se1,
                             const struct MultiStrataEstimator *se2);
 
 
void
strata_estimator_insert (struct MultiStrataEstimator *se,
                         struct IBF_Key key);
 
 
void
strata_estimator_remove (struct MultiStrataEstimator *se,
                         struct IBF_Key key);
 
 
void
strata_estimator_destroy (struct MultiStrataEstimator *se);
 
 
struct MultiStrataEstimator *
strata_estimator_dup (struct MultiStrataEstimator *se);
 
 
#if 0                           /* keep Emacsens' auto-indent happy */
{
#endif
#ifdef __cplusplus
}
#endif
 
#endif