diff options
Diffstat (limited to 'src/client/filecache.cpp')
-rw-r--r-- | src/client/filecache.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/client/filecache.cpp b/src/client/filecache.cpp new file mode 100644 index 000000000..3d1b302a8 --- /dev/null +++ b/src/client/filecache.cpp @@ -0,0 +1,89 @@ +/* +Minetest +Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com> +Copyright (C) 2013 Jonathan Neuschäfer <j.neuschaefer@gmx.net> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "filecache.h" + +#include "network/networkprotocol.h" +#include "log.h" +#include "filesys.h" +#include <string> +#include <iostream> +#include <fstream> +#include <cstdlib> + +bool FileCache::loadByPath(const std::string &path, std::ostream &os) +{ + std::ifstream fis(path.c_str(), std::ios_base::binary); + + if(!fis.good()){ + verbosestream<<"FileCache: File not found in cache: " + <<path<<std::endl; + return false; + } + + bool bad = false; + for(;;){ + char buf[1024]; + fis.read(buf, 1024); + std::streamsize len = fis.gcount(); + os.write(buf, len); + if(fis.eof()) + break; + if(!fis.good()){ + bad = true; + break; + } + } + if(bad){ + errorstream<<"FileCache: Failed to read file from cache: \"" + <<path<<"\""<<std::endl; + } + + return !bad; +} + +bool FileCache::updateByPath(const std::string &path, const std::string &data) +{ + std::ofstream file(path.c_str(), std::ios_base::binary | + std::ios_base::trunc); + + if(!file.good()) + { + errorstream<<"FileCache: Can't write to file at " + <<path<<std::endl; + return false; + } + + file.write(data.c_str(), data.length()); + file.close(); + + return !file.fail(); +} + +bool FileCache::update(const std::string &name, const std::string &data) +{ + std::string path = m_dir + DIR_DELIM + name; + return updateByPath(path, data); +} +bool FileCache::load(const std::string &name, std::ostream &os) +{ + std::string path = m_dir + DIR_DELIM + name; + return loadByPath(path, os); +} |