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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2015 Mirantis, Inc.
*
* Author: Alyona Kiseleva <akiselyova@mirantis.com>
*
* 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.
*
*/
#ifndef CEPH_COMPRESSION_ZLIB_H
#define CEPH_COMPRESSION_ZLIB_H
#include "common/config.h"
#include "compressor/Compressor.h"
class ZlibCompressor : public Compressor {
bool isal_enabled;
CephContext *const cct;
public:
ZlibCompressor(CephContext *cct, bool isal)
: Compressor(COMP_ALG_ZLIB, "zlib"), isal_enabled(isal), cct(cct) {
#ifdef HAVE_QATZIP
if (cct->_conf->qat_compressor_enabled && qat_accel.init("zlib"))
qat_enabled = true;
else
qat_enabled = false;
#endif
}
int compress(const ceph::buffer::list &in, ceph::buffer::list &out, std::optional<int32_t> &compressor_message) override;
int decompress(const ceph::buffer::list &in, ceph::buffer::list &out, std::optional<int32_t> compressor_message) override;
int decompress(ceph::buffer::list::const_iterator &p, size_t compressed_len, ceph::buffer::list &out, std::optional<int32_t> compressor_message) override;
private:
int zlib_compress(const ceph::buffer::list &in, ceph::buffer::list &out, std::optional<int32_t> &compressor_message);
int isal_compress(const ceph::buffer::list &in, ceph::buffer::list &out, std::optional<int32_t> &compressor_message);
};
#endif
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