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// Copyright (c) 2014-2017, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#pragma once
#include <boost/archive/binary_iarchive.hpp>
#include <boost/archive/portable_binary_oarchive.hpp>
#include <boost/archive/portable_binary_iarchive.hpp>
#include <boost/filesystem/operations.hpp>
namespace tools
{
template<class t_object>
bool serialize_obj_to_file(t_object& obj, const std::string& file_path)
{
TRY_ENTRY();
#if defined(_MSC_VER)
// Need to know HANDLE of file to call FlushFileBuffers
HANDLE data_file_handle = ::CreateFile(file_path.c_str(), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (INVALID_HANDLE_VALUE == data_file_handle)
return false;
int data_file_descriptor = _open_osfhandle((intptr_t)data_file_handle, 0);
if (-1 == data_file_descriptor)
{
::CloseHandle(data_file_handle);
return false;
}
const std::unique_ptr<FILE, tools::close_file> data_file_file{_fdopen(data_file_descriptor, "wb")};
if (nullptr == data_file_file)
{
// Call CloseHandle is not necessary
_close(data_file_descriptor);
return false;
}
// HACK: undocumented constructor, this code may not compile
std::ofstream data_file(data_file_file.get());
if (data_file.fail())
{
// Call CloseHandle and _close are not necessary
return false;
}
#else
std::ofstream data_file;
data_file.open(file_path , std::ios_base::binary | std::ios_base::out| std::ios::trunc);
if (data_file.fail())
return false;
#endif
boost::archive::portable_binary_oarchive a(data_file);
a << obj;
if (data_file.fail())
return false;
data_file.flush();
#if defined(_MSC_VER)
// To make sure the file is fully stored on disk
::FlushFileBuffers(data_file_handle);
#endif
return true;
CATCH_ENTRY_L0("serialize_obj_to_file", false);
}
template<class t_object>
bool unserialize_obj_from_file(t_object& obj, const std::string& file_path)
{
TRY_ENTRY();
std::ifstream data_file;
data_file.open( file_path, std::ios_base::binary | std::ios_base::in);
if(data_file.fail())
return false;
try
{
// first try reading in portable mode
boost::archive::portable_binary_iarchive a(data_file);
a >> obj;
}
catch(...)
{
// if failed, try reading in unportable mode
boost::filesystem::copy_file(file_path, file_path + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
data_file.close();
data_file.open( file_path, std::ios_base::binary | std::ios_base::in);
if(data_file.fail())
return false;
boost::archive::binary_iarchive a(data_file);
a >> obj;
}
return !data_file.fail();
CATCH_ENTRY_L0("unserialize_obj_from_file", false);
}
}
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