mmap_file.h

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/***************************************************************************
 * include/stxxl/bits/io/mmap_file.h
 *
 * Part of the STXXL. See http://stxxl.sourceforge.net
 *
 * Copyright (C) 2002 Roman Dementiev <[email protected]>
 * Copyright (C) 2008 Andreas Beckmann <[email protected]>
 * Copyright (C) 2009 Johannes Singler <[email protected]>
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE_1_0.txt or copy at
 * http://www.boost.org/LICENSE_1_0.txt)
 **************************************************************************/

#ifndef STXXL_IO_MMAP_FILE_HEADER
#define STXXL_IO_MMAP_FILE_HEADER

#include <stxxl/bits/config.h>

#if STXXL_HAVE_MMAP_FILE

#include <stxxl/bits/io/ufs_file_base.h>
#include <stxxl/bits/io/disk_queued_file.h>


STXXL_BEGIN_NAMESPACE

//! \addtogroup fileimpl
//! \{

//! Implementation of memory mapped access file.
class mmap_file : public ufs_file_base, public disk_queued_file
{
public:
 //! Constructs file object.
 //! \param filename path of file
 //! \param mode open mode, see \c stxxl::file::open_modes
 //! \param queue_id disk queue identifier
 //! \param allocator_id linked disk_allocator
 inline mmap_file(const std::string& filename, int mode, int queue_id = DEFAULT_QUEUE, int allocator_id = NO_ALLOCATOR) :
 ufs_file_base(filename, mode), disk_queued_file(queue_id, allocator_id)
 { }
 void serve(const request* req) throw (io_error);
 const char * io_type() const;
};

//! \}

STXXL_END_NAMESPACE

#endif // #if STXXL_HAVE_MMAP_FILE

#endif // !STXXL_IO_MMAP_FILE_HEADER