wincall_file.h

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/***************************************************************************
 * include/stxxl/bits/io/wincall_file.h
 *
 * Part of the STXXL. See http://stxxl.sourceforge.net
 *
 * Copyright (C) 2005-2006 Roman Dementiev <[email protected]>
 * Copyright (C) 2008 Andreas Beckmann <[email protected]>
 * Copyright (C) 2009-2010 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_WINCALL_FILE_HEADER
#define STXXL_IO_WINCALL_FILE_HEADER

#include <stxxl/bits/config.h>

#ifndef STXXL_HAVE_WINCALL_FILE
#if STXXL_WINDOWS
 #define STXXL_HAVE_WINCALL_FILE 1
#else
 #define STXXL_HAVE_WINCALL_FILE 0
#endif
#endif

#if STXXL_HAVE_WINCALL_FILE

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

STXXL_BEGIN_NAMESPACE

//! \addtogroup fileimpl
//! \{

//! Implementation of file based on Windows native I/O calls.
class wincall_file : public wfs_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
 //! \param device_id physical device identifier
 wincall_file(
 const std::string& filename,
 int mode,
 int queue_id = DEFAULT_QUEUE,
 int allocator_id = NO_ALLOCATOR,
 unsigned int device_id = DEFAULT_DEVICE_ID)
 : file(device_id),
 wfs_file_base(filename, mode),
 disk_queued_file(queue_id, allocator_id)
 { }
 void serve(void* buffer, offset_type offset, size_type bytes,
 request::request_type type);
 const char * io_type() const;
};

//! \}

STXXL_END_NAMESPACE

#endif // #if STXXL_HAVE_WINCALL_FILE

#endif // !STXXL_IO_WINCALL_FILE_HEADER