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/***************************************************************************
* lib/io/linuxaio_file.cpp
*
* Part of the STXXL. See http://stxxl.sourceforge.net
*
* Copyright (C) 2011 Johannes Singler <singler@kit.edu>
*
* 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)
**************************************************************************/
#include <stxxl/bits/io/linuxaio_file.h>
#if STXXL_HAVE_LINUXAIO_FILE
#include <stxxl/bits/io/linuxaio_request.h>
#include <stxxl/bits/io/disk_queues.h>
STXXL_BEGIN_NAMESPACE
request_ptr linuxaio_file::aread(
void* buffer,
offset_type pos,
size_type bytes,
const completion_handler& on_cmpl)
{
request_ptr req(new linuxaio_request(on_cmpl, this, buffer, pos, bytes, request::READ));
disk_queues::get_instance()->add_request(req, get_queue_id());
return req;
}
request_ptr linuxaio_file::awrite(
void* buffer,
offset_type pos,
size_type bytes,
const completion_handler& on_cmpl)
{
request_ptr req(new linuxaio_request(on_cmpl, this, buffer, pos, bytes, request::WRITE));
disk_queues::get_instance()->add_request(req, get_queue_id());
return req;
}
void linuxaio_file::serve(void* buffer, offset_type offset, size_type bytes,
request::request_type type)
{
// req need not be an linuxaio_request
if (type == request::READ)
aread(buffer, offset, bytes)->wait();
else
awrite(buffer, offset, bytes)->wait();
}
const char* linuxaio_file::io_type() const
{
return "linuxaio";
}
STXXL_END_NAMESPACE
#endif // #if STXXL_HAVE_LINUXAIO_FILE
// vim: et:ts=4:sw=4
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