public PoolIOStream(PoolBufferAllocator allocator, IChunk chunk, int offset, int initlen)
{
_readerindex = 0;
_writerindex = initlen;
_allocator = allocator;
_chunk = chunk;
_chunkoffset = offset;
}
public PoolIOStream(PoolBufferAllocator allocator, IChunk chunk, int offset) :
this(allocator, chunk, offset, 0)
{
}