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42 lines
1.4 KiB
Go
42 lines
1.4 KiB
Go
package flowcontrol
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import "github.com/lucas-clemente/quic-go/internal/protocol"
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type flowController interface {
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// for sending
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SendWindowSize() protocol.ByteCount
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UpdateSendWindow(protocol.ByteCount)
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AddBytesSent(protocol.ByteCount)
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// for receiving
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AddBytesRead(protocol.ByteCount)
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GetWindowUpdate() protocol.ByteCount // returns 0 if no update is necessary
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}
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// A StreamFlowController is a flow controller for a QUIC stream.
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type StreamFlowController interface {
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flowController
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// for sending
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IsBlocked() (bool, protocol.ByteCount)
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// for receiving
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// UpdateHighestReceived should be called when a new highest offset is received
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// final has to be to true if this is the final offset of the stream, as contained in a STREAM frame with FIN bit, and the RST_STREAM frame
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UpdateHighestReceived(offset protocol.ByteCount, final bool) error
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// HasWindowUpdate says if it is necessary to update the window
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HasWindowUpdate() bool
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}
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// The ConnectionFlowController is the flow controller for the connection.
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type ConnectionFlowController interface {
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flowController
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// for sending
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IsNewlyBlocked() (bool, protocol.ByteCount)
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}
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type connectionFlowControllerI interface {
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ConnectionFlowController
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// The following two methods are not supposed to be called from outside this packet, but are needed internally
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// for sending
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EnsureMinimumWindowSize(protocol.ByteCount)
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// for receiving
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IncrementHighestReceived(protocol.ByteCount) error
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}
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