ceph/src/compressor/zlib/ZlibCompressor.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2015 Mirantis, Inc.
   7  *
   8  * Author: Alyona Kiseleva <akiselyova@mirantis.com>
   9  *
  10  *  This library is free software; you can redistribute it and/or
  11  *  modify it under the terms of the GNU Lesser General Public
  12  *  License as published by the Free Software Foundation; either
  13  *  version 2.1 of the License, or (at your option) any later version.
  14  *
  15  */
  16
  17 #ifndef CEPH_COMPRESSION_ZLIB_H
  18 #define CEPH_COMPRESSION_ZLIB_H
  19
  20 #include "compressor/Compressor.h"
  21
  22 class ZlibCompressor : public Compressor {
  23   bool isal_enabled;
  24 public:
  25   ZlibCompressor(bool isal) : Compressor(COMP_ALG_ZLIB, "zlib"), isal_enabled(isal) {}
  26
  27   int compress(const bufferlist &in, bufferlist &out) override;
  28   int decompress(const bufferlist &in, bufferlist &out) override;
  29   int decompress(bufferlist::iterator &p, size_t compressed_len, bufferlist &out) override;
  30 private:
  31   int zlib_compress(const bufferlist &in, bufferlist &out);
  32   int isal_compress(const bufferlist &in, bufferlist &out);
  33  };
  34
  35
  36 #endif