wownero/src/common/boost_serialization_helper.h

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// Copyright (c) 2012-2013 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#pragma once
#include <boost/archive/binary_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
namespace tools
{
template<class t_object>
bool serialize_obj_to_file(t_object& obj, const std::string& file_path)
{
TRY_ENTRY();
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#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;
}
FILE* data_file_file = _fdopen(data_file_descriptor, "wb");
if (0 == 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);
if (data_file.fail())
{
// Call CloseHandle and _close are not necessary
fclose(data_file_file);
return false;
}
#else
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std::ofstream data_file;
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data_file.open(file_path , std::ios_base::binary | std::ios_base::out| std::ios::trunc);
if (data_file.fail())
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return false;
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#endif
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boost::archive::binary_oarchive a(data_file);
a << obj;
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if (data_file.fail())
return false;
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data_file.flush();
#if defined(_MSC_VER)
// To make sure the file is fully stored on disk
::FlushFileBuffers(data_file_handle);
fclose(data_file_file);
#endif
return true;
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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;
boost::archive::binary_iarchive a(data_file);
a >> obj;
return !data_file.fail();
CATCH_ENTRY_L0("unserialize_obj_from_file", false);
}
}