io.grpc.internal

Interface AbstractClientStream.Sink

Enclosing class:

AbstractClientStream

protected static interface AbstractClientStream.Sink

A sink for outbound operations, separated from the stream simply to avoid name collisions/confusion. Only called from application thread.

Method Summary

Modifier and Type	Method and Description
void	cancel(Status status) Tears down the stream, typically in the event of a timeout.
void	request(int numMessages) Requests up to the given number of messages from the call to be delivered to the client.
void	writeFrame(WritableBuffer frame, boolean endOfStream, boolean flush, int numMessages) Sends an outbound frame to the remote end point.
void	writeHeaders(Metadata metadata, byte[] payload) Sends the request headers to the remote end point.

Method Detail

writeHeaders

void writeHeaders(Metadata metadata,
                  @Nullable
                  byte[] payload)

Sends the request headers to the remote end point.

Parameters:

metadata - the metadata to be sent

payload - the payload needs to be sent in the headers if not null. Should only be used when sending an unary GET request

writeFrame

void writeFrame(@Nullable
                WritableBuffer frame,
                boolean endOfStream,
                boolean flush,
                int numMessages)

Sends an outbound frame to the remote end point.

Parameters:

frame - a buffer containing the chunk of data to be sent, or null if endOfStream with no data to send

endOfStream - true if this is the last frame; flush is guaranteed to be true if this is true

flush - true if more data may not be arriving soon

request

void request(int numMessages)

Requests up to the given number of messages from the call to be delivered to the client. This should end up triggering AbstractStream.TransportState.requestMessagesFromDeframer(int) on the transport thread.

cancel

void cancel(Status status)

Tears down the stream, typically in the event of a timeout. This method may be called multiple times and from any thread.

This is a clone of ClientStream.cancel(Status); AbstractClientStream.cancel(io.grpc.Status) delegates to this method.