HardDriveFile.cpp

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#include "HardDriveFile.h"
 
#include "Logger.h"
 
HardDriveFile::HardDriveFile(std::string path, std::string real, int id)
    : CASCFile(std::move(path), id), opened(false), realpath(std::move(real)), file(nullptr)
{
}
 
HardDriveFile::~HardDriveFile()
{
    close();
}
 
bool HardDriveFile::openFile()
{
    file = new std::ifstream(realpath, std::ios::binary);
 
    if (!file->is_open())
    {
        LOG_ERROR << "Opening" << filepath << "failed.";
        delete file;
        file = nullptr;
        return false;
    }
 
    opened = true;
    return true;
}
 
bool HardDriveFile::isAlreadyOpened()
{
    if (opened)
        return true;
    else
        return false;
}
 
bool HardDriveFile::getFileSize(unsigned long long& s)
{
    if (!file || !file->is_open())
        return false;
 
    const auto cur = file->tellg();
    file->seekg(0, std::ios::end);
    s = static_cast<unsigned long long>(file->tellg());
    file->seekg(cur);
    return true;
}
 
unsigned long HardDriveFile::readFile()
{
    if (!file || !file->is_open())
        return 0;
 
    file->seekg(0, std::ios::beg);
    file->read(reinterpret_cast<char*>(buffer), size);
    const unsigned long s = static_cast<unsigned long>(file->gcount());
    file->close();
    delete file;
    file = nullptr;
    return s;
}
 
bool HardDriveFile::doPostCloseOperation()
{
#ifdef DEBUG_READ
  LOG_INFO << __FUNCTION__ << "Closing" << filepath;
#endif
    if (opened)
        opened = false;
 
    return true;
}