@UnstableApi public final class UniformStreamByteDistributor extends Object implements StreamByteDistributor
StreamByteDistributor
that ignores stream priority and uniformly allocates bytes to all
streams. This class uses a minimum chunk size that will be allocated to each stream. While
fewer streams may be written to in each call to StreamByteDistributor.distribute(int, Writer)
, doing this
should improve the goodput on each written stream.StreamByteDistributor.StreamState, StreamByteDistributor.Writer
Constructor and Description |
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UniformStreamByteDistributor(Http2Connection connection) |
Modifier and Type | Method and Description |
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boolean |
distribute(int maxBytes,
StreamByteDistributor.Writer writer)
Distributes up to
maxBytes to those streams containing streamable bytes and
iterates across those streams to write the appropriate bytes. |
void |
minAllocationChunk(int minAllocationChunk)
Sets the minimum allocation chunk that will be allocated to each stream.
|
void |
updateStreamableBytes(StreamByteDistributor.StreamState streamState)
Called when the streamable bytes for a stream has changed.
|
public UniformStreamByteDistributor(Http2Connection connection)
public void minAllocationChunk(int minAllocationChunk)
minAllocationChunk
- the minimum number of bytes that will be allocated to each stream.
Must be > 0.public void updateStreamableBytes(StreamByteDistributor.StreamState streamState)
StreamByteDistributor
updateStreamableBytes
in interface StreamByteDistributor
public boolean distribute(int maxBytes, StreamByteDistributor.Writer writer) throws Http2Exception
StreamByteDistributor
maxBytes
to those streams containing streamable bytes and
iterates across those streams to write the appropriate bytes. Criteria for
traversing streams is undefined and it is up to the implementation to determine when to stop
at a given stream.
The streamable bytes are not automatically updated by calling this method. It is up to the
caller to indicate the number of bytes streamable after the write by calling
StreamByteDistributor.updateStreamableBytes(StreamState)
.
distribute
in interface StreamByteDistributor
maxBytes
- the maximum number of bytes to write.true
if there are still streamable bytes that have not yet been written,
otherwise false
.Http2Exception
- If an internal exception occurs and internal connection state would otherwise be
corrupted.Copyright © 2008–2016 The Netty Project. All rights reserved.