public IList <ByteBuf> Decompose(int offset, int length)
{
CheckIndex(offset, length);
if (length == 0)
{
return(Convenient.EmptyList <ByteBuf>());
}
int componentId = FindIndex(offset);
IList <ByteBuf> slice = new List <ByteBuf>(_components.Count);
// the first component
var firstC = _components[componentId];
var first = firstC.Buf.Duplicate();
first.SetReaderIndex(offset - firstC.Offset);
ByteBuf buf = first;
int bytesToSlice = length;
do
{
int readableBytes = buf.ReadableBytes;
if (bytesToSlice <= readableBytes)
{
// last component
buf.SetWriterIndex(buf.ReaderIndex + bytesToSlice);
slice.Add(buf);
break;
}
else
{
// not the last component
slice.Add(buf);
bytesToSlice -= readableBytes;
componentId++;
// fetch the next component
buf = _components[componentId].Buf.Duplicate();
}
} while (bytesToSlice > 0);
// slice all component because only readable bytes are interesting
for (int i = 0; i < slice.Count; i++)
{
slice[i] = slice[i].Slice();
}
return(slice);
}
public ICollection <Number160> FindContentForResponsiblePeerId(Number160 peerId)
{
var lockResp = LockResponsibility(peerId);
try
{
var contentIds = _backend.FindContentForResponsiblePeerId(peerId);
if (contentIds == null)
{
return(Convenient.EmptyList <Number160>());
}
else
{
return(new List <Number160>(contentIds));
}
}
finally
{
lockResp.Unlock();
}
}
