pub enum DropReason {
SinkClosed,
SinkFull,
Unregistered,
}Expand description
Why an inbound session data packet was dropped without being delivered.
All three are ordinary consequences of a session tearing down or being briefly overwhelmed, not
faults: a departing counterparty leaves packets in flight that arrive after its slot’s sink is
gone or after the slot itself is deregistered. They are reported as a DispatchResult::Dropped
outcome rather than an Err precisely so the caller does not log them at ERROR — the loud
teardown-race spam this distinction exists to remove.
Variants§
SinkClosed
The slot is still registered but its data sink (receiver) has been dropped
(TrySendError::Disconnected). The common case when a session is being torn down.
SinkFull
The slot’s inbox is full (TrySendError::Full): genuine backpressure, the reader is not
keeping up. Distinct from SinkClosed because it is transient, not a
teardown.
Unregistered
No slot for this session id is registered (formerly the UnknownData error): the session
was fully deregistered before this packet arrived.
Trait Implementations§
Source§impl Clone for DropReason
impl Clone for DropReason
Source§fn clone(&self) -> DropReason
fn clone(&self) -> DropReason
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moreimpl Copy for DropReason
Source§impl Debug for DropReason
impl Debug for DropReason
impl Eq for DropReason
Source§impl PartialEq for DropReason
impl PartialEq for DropReason
impl StructuralPartialEq for DropReason
Auto Trait Implementations§
impl Freeze for DropReason
impl RefUnwindSafe for DropReason
impl Send for DropReason
impl Sync for DropReason
impl Unpin for DropReason
impl UnsafeUnpin for DropReason
impl UnwindSafe for DropReason
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