90 lines
2.2 KiB
C++
90 lines
2.2 KiB
C++
/*
|
|
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 "clientserver.h"
|
|
#include "log.h"
|
|
#include "filesys.h"
|
|
#include <string>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <stdlib.h>
|
|
|
|
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);
|
|
}
|