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/***************************************************************************
* lib/io/request.cpp
*
* Part of the STXXL. See http://stxxl.sourceforge.net
*
* Copyright (C) 2008 Andreas Beckmann <beckmann@cs.uni-frankfurt.de>
* Copyright (C) 2009 Johannes Singler <singler@ira.uka.de>
*
* 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 <ostream>
#include <stxxl/bits/io/request.h>
#include <stxxl/bits/io/file.h>
STXXL_BEGIN_NAMESPACE
request::request(
const completion_handler& on_compl,
file* file,
void* buffer,
offset_type offset,
size_type bytes,
request_type type)
: m_on_complete(on_compl),
m_file(file),
m_buffer(buffer),
m_offset(offset),
m_bytes(bytes),
m_type(type)
{
STXXL_VERBOSE3_THIS("request::(...), ref_cnt=" << get_reference_count());
m_file->add_request_ref();
}
request::~request()
{
STXXL_VERBOSE3_THIS("request::~request(), ref_cnt=" << get_reference_count());
}
void request::check_alignment() const
{
if (m_offset % STXXL_BLOCK_ALIGN != 0)
STXXL_ERRMSG("Offset is not aligned: modulo " <<
STXXL_BLOCK_ALIGN << " = " << m_offset % STXXL_BLOCK_ALIGN);
if (m_bytes % STXXL_BLOCK_ALIGN != 0)
STXXL_ERRMSG("Size is not a multiple of " <<
STXXL_BLOCK_ALIGN << ", = " << m_bytes % STXXL_BLOCK_ALIGN);
if (unsigned_type(m_buffer) % STXXL_BLOCK_ALIGN != 0)
STXXL_ERRMSG("Buffer is not aligned: modulo " <<
STXXL_BLOCK_ALIGN << " = " << unsigned_type(m_buffer) % STXXL_BLOCK_ALIGN <<
" (" << m_buffer << ")");
}
void request::check_nref_failed(bool after)
{
STXXL_ERRMSG("WARNING: serious error, reference to the request is lost " <<
(after ? "after" : "before") << " serve()" <<
" nref=" << get_reference_count() <<
" this=" << this <<
" offset=" << m_offset <<
" buffer=" << m_buffer <<
" bytes=" << m_bytes <<
" type=" << ((m_type == READ) ? "READ" : "WRITE") <<
" file=" << m_file <<
" iotype=" << m_file->io_type()
);
}
const char* request::io_type() const
{
return m_file->io_type();
}
std::ostream& request::print(std::ostream& out) const
{
out << "File object address: " << static_cast<void*>(m_file);
out << " Buffer address: " << static_cast<void*>(m_buffer);
out << " File offset: " << m_offset;
out << " Transfer size: " << m_bytes << " bytes";
out << " Type of transfer: " << ((m_type == READ) ? "READ" : "WRITE");
return out;
}
STXXL_END_NAMESPACE
// vim: et:ts=4:sw=4
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