Method Read

Libraries/unrar/file.cpp:370–405

int File::Read(void *Data,size_t Size)
{
  int64 FilePos=0; // Initialized only to suppress some compilers warning.

  if (IgnoreReadErrors)
    FilePos=Tell();
  int ReadSize;
  while (true)
  {
    ReadSize=DirectRead(Data,Size);
    if (ReadSize==-1)
    {
      ErrorType=FILE_READERROR;
      if (AllowExceptions)
        if (IgnoreReadErrors)
        {
          ReadSize=0;
          for (size_t I=0;I<Size;I+=512)
          {
            Seek(FilePos+I,SEEK_SET);
            size_t SizeToRead=Min(Size-I,512);
            int ReadCode=DirectRead(Data,SizeToRead);
            ReadSize+=(ReadCode==-1) ? 512:ReadCode;
          }
        }
        else
        {
          if (HandleType==FILE_HANDLENORMAL && ErrHandler.AskRepeatRead(FileName))
            continue;
          ErrHandler.ReadError(FileName);
        }
    }
    break;
  }
  return ReadSize; // It can return -1 only if AllowExceptions is disabled.
}


// Returns -1 in case of error.