OpenWalnut 1.2.5
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00001 //--------------------------------------------------------------------------- 00002 // 00003 // Project: OpenWalnut ( http://www.openwalnut.org ) 00004 // 00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS 00006 // For more information see http://www.openwalnut.org/copying 00007 // 00008 // This file is part of OpenWalnut. 00009 // 00010 // OpenWalnut is free software: you can redistribute it and/or modify 00011 // it under the terms of the GNU Lesser General Public License as published by 00012 // the Free Software Foundation, either version 3 of the License, or 00013 // (at your option) any later version. 00014 // 00015 // OpenWalnut is distributed in the hope that it will be useful, 00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00018 // GNU Lesser General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU Lesser General Public License 00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>. 00022 // 00023 //--------------------------------------------------------------------------- 00024 00025 #include <fstream> 00026 #include <streambuf> 00027 #include <string> 00028 00029 // Use filesystem version 2 for compatibility with newer boost versions. 00030 #ifndef BOOST_FILESYSTEM_VERSION 00031 #define BOOST_FILESYSTEM_VERSION 2 00032 #endif 00033 #include <boost/filesystem.hpp> 00034 00035 #include "exceptions/WFileNotFound.h" 00036 #include "exceptions/WFileOpenFailed.h" 00037 #include "WIOTools.h" 00038 00039 std::string readFileIntoString( const std::string& name ) 00040 { 00041 return readFileIntoString( boost::filesystem::path( name ) ); 00042 } 00043 00044 std::string readFileIntoString( const boost::filesystem::path& path ) 00045 { 00046 std::string filename = path.file_string(); 00047 std::ifstream input( filename.c_str() ); 00048 if( !input.is_open() ) 00049 { 00050 throw WFileNotFound( std::string( "The file \"" ) + boost::filesystem::complete( path ).file_string() + std::string( "\" does not exist." ) ); 00051 } 00052 00053 // preallocate space for the string. 00054 std::string str; 00055 input.seekg( 0, std::ios::end ); 00056 str.reserve( input.tellg() ); 00057 input.seekg( 0, std::ios::beg ); 00058 00059 str.assign( ( std::istreambuf_iterator< char >( input ) ), std::istreambuf_iterator< char >() ); 00060 00061 input.close(); 00062 return str; 00063 } 00064 00065 void writeStringIntoFile( const std::string& name, const std::string& content ) 00066 { 00067 writeStringIntoFile( boost::filesystem::path( name ), content ); 00068 } 00069 00070 void writeStringIntoFile( const boost::filesystem::path& path, const std::string& content ) 00071 { 00072 std::ofstream outfile( path.file_string().c_str() ); 00073 if( !outfile.is_open() ) 00074 { 00075 throw WFileOpenFailed( "The file \"" + boost::filesystem::complete( path ).file_string() + "\" could not be opened." ); 00076 } 00077 00078 outfile << content << std::flush; 00079 outfile.close(); 00080 } 00081 00082 boost::filesystem::path tempFileName() 00083 { 00084 // REGARDING THE COMPILER WARNING 00085 // 1. mkstemp is only available for POSIX systems 00086 // 2. reason: the warning generated here is due to a race condition 00087 // while tmpnam invents the fileName it may be created by another process 00088 // 3. file names like "/tmp/pansen" or "C:\pansen" are platform dependent 00089 return boost::filesystem::path( std::string( std::tmpnam( NULL ) ) ); 00090 } 00091