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#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);
}
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