PollArrayWrapper(int newSize) 
{
 // Size of the pollArray
        int allocationSize = newSize * SIZE_POLLFD;
        pollArray = new AllocatedNativeObject(allocationSize, true);
        pollArrayAddress = pollArray.address();
        this.size = newSize;
}

  void addEntry(int index,
    SelectionKeyImpl ski) 
{
        putDescriptor(index, ski.channel.getFDVal());
}

  void addWakeupSocket(int fdVal,
    int index) 
{
        putDescriptor(index, fdVal);
        putEventOps(index, POLLIN);
}

  void free() 
{
        pollArray.free();
}

 int getDescriptor(int i) 
{
       return pollArray.getInt(SIZE_POLLFD * i + FD_OFFSET);
}

 int getEventOps(int i) 
{
        return pollArray.getShort(SIZE_POLLFD * i + EVENT_OFFSET);
}

  void grow(int newSize) 
{
        PollArrayWrapper temp = new PollArrayWrapper(newSize);
        for (int i = 0; i <  size; i++)
            replaceEntry(this, i, temp, i);
        pollArray.free();
        pollArray = temp.pollArray;
        this.size = temp.size;
        pollArrayAddress = pollArray.address();
}

  void putDescriptor(int i,
    int fd) 
{
        pollArray.putInt(SIZE_POLLFD * i + FD_OFFSET, fd);
}

  void putEventOps(int i,
    int event) 
{
        pollArray.putShort(SIZE_POLLFD * i + EVENT_OFFSET, (short)event);
}

  void replaceEntry(PollArrayWrapper source,
    int sindex,
    PollArrayWrapper target,
    int tindex) 
{
        target.putDescriptor(tindex, source.getDescriptor(sindex));
        target.putEventOps(tindex, source.getEventOps(sindex));
}