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// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of the Andrey N. Sabelnikov 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 OWNER 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.
//
#ifndef _FILE_IO_UTILS_H_
#define _FILE_IO_UTILS_H_
#include <iostream>
#include <boost/filesystem/path.hpp>
#include <boost/filesystem/operations.hpp>
namespace epee
{
namespace file_io_utils
{
inline
bool is_file_exist(const std::string& path)
{
boost::filesystem::path p(path);
return boost::filesystem::exists(p);
}
inline
bool save_string_to_file(const std::string& path_to_file, const std::string& str)
{
try
{
std::ofstream fstream;
fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
fstream.open(path_to_file, std::ios_base::binary | std::ios_base::out | std::ios_base::trunc);
fstream << str;
fstream.close();
return true;
}
catch(...)
{
return false;
}
}
inline
bool get_file_time(const std::string& path_to_file, time_t& ft)
{
boost::system::error_code ec;
ft = boost::filesystem::last_write_time(boost::filesystem::path(path_to_file), ec);
if(!ec)
return true;
else
return false;
}
inline
bool set_file_time(const std::string& path_to_file, const time_t& ft)
{
boost::system::error_code ec;
boost::filesystem::last_write_time(boost::filesystem::path(path_to_file), ft, ec);
if(!ec)
return true;
else
return false;
}
inline
bool load_file_to_string(const std::string& path_to_file, std::string& target_str)
{
try
{
std::ifstream fstream;
fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
fstream.open(path_to_file, std::ios_base::binary | std::ios_base::in | std::ios::ate);
std::ifstream::pos_type file_size = fstream.tellg();
if(file_size > 1000000000)
return false;//don't go crazy
size_t file_size_t = static_cast<size_t>(file_size);
target_str.resize(file_size_t);
fstream.seekg (0, std::ios::beg);
fstream.read((char*)target_str.data(), target_str.size());
fstream.close();
return true;
}
catch(...)
{
return false;
}
}
inline
bool append_string_to_file(const std::string& path_to_file, const std::string& str)
{
try
{
std::ofstream fstream;
fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
fstream.open(path_to_file.c_str(), std::ios_base::binary | std::ios_base::out | std::ios_base::app);
fstream << str;
fstream.close();
return true;
}
catch(...)
{
return false;
}
}
inline
bool get_file_size(const std::string& path_to_file, uint64_t &size)
{
try
{
std::ifstream fstream;
fstream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
fstream.open(path_to_file, std::ios_base::binary | std::ios_base::in | std::ios::ate);
size = fstream.tellg();
fstream.close();
return true;
}
catch(...)
{
return false;
}
}
}
}
#endif //_FILE_IO_UTILS_H_
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