tor_proto::tunnel::streammap

Struct OpenStreamEnt

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pub(super) struct OpenStreamEnt {
    pub(super) sink: Sender<UnparsedRelayMsg, MpscSpec>,
    pub(super) dropped: u16,
    pub(super) cmd_checker: Box<dyn CmdChecker + Send + 'static>,
    flow_ctrl: StreamSendFlowControl,
    rx: StreamUnobtrusivePeeker<Receiver<AnyRelayMsg, MpscSpec>>,
    flow_ctrl_waker: Option<Waker>,
}
Expand description

Entry for an open stream

(For the purposes of this module, an open stream is one where we have not sent or received any message indicating that the stream is ended.)

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§sink: Sender<UnparsedRelayMsg, MpscSpec>

Sink to send relay cells tagged for this stream into.

§dropped: u16

Number of cells dropped due to the stream disappearing before we can transform this into an EndSent.

§cmd_checker: Box<dyn CmdChecker + Send + 'static>

A CmdChecker used to tell whether cells on this stream are valid.

§flow_ctrl: StreamSendFlowControl

Flow control for this stream.

§rx: StreamUnobtrusivePeeker<Receiver<AnyRelayMsg, MpscSpec>>

Stream for cells that should be sent down this stream.

§flow_ctrl_waker: Option<Waker>

Waker to be woken when more sending capacity becomes available (e.g. receiving a SENDME).

Implementations§

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impl OpenStreamEnt

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pub(super) fn project<'pin>( self: Pin<&'pin mut Self>, ) -> __OpenStreamEntProjection<'pin>

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pub(super) fn project_ref<'pin>( self: Pin<&'pin Self>, ) -> __OpenStreamEntProjectionRef<'pin>

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impl OpenStreamEnt

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

Whether this stream is ready to send msg.

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pub(crate) fn put_for_incoming_sendme(&mut self) -> 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.

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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. Should be called at the point we’ve fully committed to sending the message.

Trait Implementations§

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impl Debug for OpenStreamEnt

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

Formats the value using the given formatter. Read more
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impl<'pin> Unpin for OpenStreamEnt
where PinnedFieldsOf<__OpenStreamEnt<'pin>>: Unpin,

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