io.netty.handler.codec.http2

接口 StreamByteDistributor.StreamState

封闭接口:

StreamByteDistributor

public static interface StreamByteDistributor.StreamState

State information for the stream, indicating the number of bytes that are currently streamable. This is provided to the StreamByteDistributor.updateStreamableBytes(StreamState) method.

方法概要

限定符和类型	方法和说明
boolean	hasFrame() Indicates whether or not there are frames pending for this stream.
long	pendingBytes() Get the amount of bytes this stream has pending to send.
Http2Stream	stream() Gets the stream this state is associated with.
int	windowSize() The size (in bytes) of the stream's flow control window.

方法详细资料

stream

Http2Stream stream()

Gets the stream this state is associated with.

pendingBytes

long pendingBytes()

Get the amount of bytes this stream has pending to send. The actual amount written must not exceed windowSize()!

返回:

The amount of bytes this stream has pending to send.

另请参阅:

Http2CodecUtil#streamableBytes(StreamState)

hasFrame

boolean hasFrame()

Indicates whether or not there are frames pending for this stream.

windowSize

int windowSize()

The size (in bytes) of the stream's flow control window. The amount written must not exceed this amount!

A StreamByteDistributor needs to know the stream's window size in order to avoid allocating bytes if the window size is negative. The window size being 0 may also be significant to determine when if an stream has been given a chance to write an empty frame, and also enables optimizations like not writing empty frames in some situations (don't write headers until data can also be written).

返回:

the size of the stream's flow control window.

另请参阅:

Http2CodecUtil#streamableBytes(StreamState)