disk_queued_file.h

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/***************************************************************************
 * include/stxxl/bits/io/disk_queued_file.h
 *
 * Part of the STXXL. See http://stxxl.sourceforge.net
 *
 * 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_DISK_QUEUED_FILE_HEADER
#define STXXL_IO_DISK_QUEUED_FILE_HEADER

#include <stxxl/bits/io/file.h>
#include <stxxl/bits/io/request.h>
#include <stxxl/bits/namespace.h>


STXXL_BEGIN_NAMESPACE

//! \addtogroup fileimpl
//! \{

class completion_handler;

//! Implementation of some file methods based on serving_request.
class disk_queued_file : public virtual file
{
 int queue_id, allocator_id;

public:
 disk_queued_file(int queue_id, int allocator_id) : queue_id(queue_id), allocator_id(allocator_id)
 { }
 request_ptr aread(
 void* buffer,
 offset_type pos,
 size_type bytes,
 const completion_handler& on_cmpl);
 request_ptr awrite(
 void* buffer,
 offset_type pos,
 size_type bytes,
 const completion_handler& on_cmpl);

 virtual int get_queue_id() const
 {
 return queue_id;
 }

 virtual int get_allocator_id() const
 {
 return allocator_id;
 }
};

//! \}

STXXL_END_NAMESPACE

#endif // !STXXL_IO_DISK_QUEUED_FILE_HEADER
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