Struct StreamFlowControl Copy item path

impl StreamFlowControl

pub(crate) fn new_window_based(window: SendWindow<StreamParams>) -> Self

Returns a new sendme-window-based StreamFlowControl.

pub(crate) fn new_xon_xoff_based( rate_limit_updater: Sender<StreamRateLimit>, drain_rate_requester: NotifySender<DrainRateRequest>, ) -> Self

Available on crate feature flowctl-cc only.

Returns a new xon/xoff-based StreamFlowControl.

pub(crate) fn can_send<M: RelayMsg>(&self, msg: &M) -> bool

Whether this stream is ready to send msg.

pub(crate) fn take_capacity_to_send<M: RelayMsg>( &mut self, msg: &M, ) -> Result<()>

Take capacity to send msg. If there’s insufficient capacity, returns an error.

pub(crate) fn put_for_incoming_sendme( &mut self, msg: UnparsedRelayMsg, ) -> Result<()>

Handle an incoming sendme.

On success, return the number of cells left in the window.

On failure, return an error: the caller should close the stream or circuit with a protocol error.

Takes the UnparsedRelayMsg so that we don’t even try to decode it if we’re not using the correct type of flow control.

pub(crate) fn handle_incoming_xon( &mut self, msg: UnparsedRelayMsg, ) -> Result<()>

Handle an incoming XON message.

Takes the UnparsedRelayMsg so that we don’t even try to decode it if we’re not using the correct type of flow control.

pub(crate) fn handle_incoming_xoff( &mut self, msg: UnparsedRelayMsg, ) -> Result<()>

Handle an incoming XOFF message.

Takes the UnparsedRelayMsg so that we don’t even try to decode it if we’re not using the correct type of flow control.

pub(crate) fn maybe_send_xon( &mut self, rate: XonKbpsEwma, buffer_len: usize, ) -> Result<Option<Xon>>

Check if we should send an XON message.

If we should, then returns the XON message that should be sent. Returns an error if XON/XOFF messages aren’t supported for this type of flow control.

pub(crate) fn maybe_send_xoff( &mut self, buffer_len: usize, ) -> Result<Option<Xoff>>

Check if we should send an XOFF message.

If we should, then returns the XOFF message that should be sent. Returns an error if XON/XOFF messages aren’t supported for this type of flow control.

Trait Implementations§

impl Debug for StreamFlowControl

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl !UnwindSafe for StreamFlowControl

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