guix-gnunet/gnunet/fs.h

/*
     This file is part of GNUnet.
     Copyright (C) 2003--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
 */

/**
 * (extract)
 * @file fs/fs.h
 * @brief definitions for the entire fs module
 * @author Igor Wronsky, Christian Grothoff
 */
#ifndef FS_H
#define FS_H

#include <gnunet/gnunet_common.h>

/**
 * Size of the individual blocks used for file-sharing.
 */
#define DBLOCK_SIZE (32 * 1024)

/**
 * Blocksize to use when hashing files for indexing (blocksize for IO,
 * not for the DBlocks).  Larger blocksizes can be more efficient but
 * will be more disruptive as far as the scheduler is concerned.
 */
#define HASHING_BLOCKSIZE (1024 * 128)

GNUNET_NETWORK_STRUCT_BEGIN
/**
 * @brief content hash key
 */
struct ContentHashKey
{
  /**
   * Hash of the original content, used for encryption.
   */
  struct GNUNET_HashCode key;

  /**
   * Hash of the encrypted content, used for querying.
   */
  struct GNUNET_HashCode query;
};
GNUNET_NETWORK_STRUCT_END
#endif

/* end of fs.h */