icinga2/lib/base/zlibstream.cpp

83 lines
2.5 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-present Icinga Development Team (http://www.icinga.org) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "base/zlibstream.h"
#include "base/objectlock.h"
#include <boost/make_shared.hpp>
#ifdef HAVE_BIOZLIB
using namespace icinga;
extern "C" BIO_METHOD *BIO_f_zlib(void);
/**
* Constructor for the ZlibStream class.
*
* @param innerStream The inner stream.
* @param compress Whether we're compressing, false if we're decompressing.
*/
ZlibStream::ZlibStream(const Stream::Ptr& innerStream)
: m_InnerStream(innerStream)
{
BIO *ibio = BIO_new_I2Stream(innerStream);
BIO *zbio = BIO_new(BIO_f_zlib());
m_BIO = BIO_push(zbio, ibio);
}
ZlibStream::~ZlibStream(void)
{
Close();
}
size_t ZlibStream::Read(void *buffer, size_t size)
{
ObjectLock olock(this);
return BIO_read(m_BIO, buffer, size);
}
void ZlibStream::Write(const void *buffer, size_t size)
{
ObjectLock olock(this);
BIO_write(m_BIO, buffer, size);
}
void ZlibStream::Close(void)
{
ObjectLock olock(this);
if (m_BIO) {
BIO_free_all(m_BIO);
m_BIO = NULL;
m_InnerStream->Close();
}
}
bool ZlibStream::IsEof(void) const
{
ObjectLock olock(this);
return BIO_eof(m_BIO);
}
#endif /* HAVE_BIOZLIB */