Method LoadDescriptionPacket

src/par2repairer.cpp:605–650

Finish loading a file description packet

// Finish loading a file description packet
bool Par2Repairer::LoadDescriptionPacket(DiskFile *diskfile, u64 offset, PACKET_HEADER &header)
{
  DescriptionPacket *packet = new DescriptionPacket;

  // Load the packet from disk
  if (!packet->Load(diskfile, offset, header))
  {
    delete packet;
    return false;
  }

  // What is the fileid
  const MD5Hash &fileid = packet->FileId();

  // Look up the fileid in the source file map for an existing source file entry
  std::map<MD5Hash, Par2RepairerSourceFile*>::iterator sfmi = sourcefilemap.find(fileid);
  Par2RepairerSourceFile *sourcefile = (sfmi == sourcefilemap.end()) ? 0 :sfmi->second;

  // Was there an existing source file
  if (sourcefile)
  {
    // Does the source file already have a description packet
    if (sourcefile->GetDescriptionPacket())
    {
      // Yes. We don't need another copy
      delete packet;
      return false;
    }
    else
    {
      // No. Store the packet in the source file
      sourcefile->SetDescriptionPacket(packet);
      return true;
    }
  }
  else
  {
    // Create a new source file for the packet
    sourcefile = new Par2RepairerSourceFile(packet, NULL);

    // Record the source file in the source file map
    sourcefilemap.insert(std::pair<MD5Hash, Par2RepairerSourceFile*>(fileid, sourcefile));

    return true;
  }
}

// Finish loading a file verification packet
bool Par2Repairer::LoadVerificationPacket(DiskFile *diskfile, u64 offset, PACKET_HEADER &header)