//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private void readIdBatch0() throws java.io.IOException
private void ReadIdBatch0()
{
if (_stackPosition == 0)
{
return;
}
long startPosition = max(_stackPosition - _batchSize * _idEntrySize, 0);
int bytesToRead = toIntExact(_stackPosition - startPosition);
ByteBuffer readBuffer = ByteBuffer.allocate(bytesToRead);
_channel.position(startPosition);
_channel.readAll(readBuffer);
_stackPosition = startPosition;
readBuffer.flip();
int idsRead = bytesToRead / _idEntrySize;
for (int i = 0; i < idsRead; i++)
{
long id = readBuffer.Long;
_readFromDisk.enqueue(id);
}
if (_aggressiveMode)
{
Truncate(startPosition);
}
}