pub struct OpcodeRateLimiter { /* private fields */ }Expand description
A sliding-window outbound limiter over OpcodeRateLimits.
Mirrors Chia’s algorithm: per-period per-opcode count and cumulative size, plus an aggregate budget for everything that is not a transaction message.
Implementations§
Source§impl OpcodeRateLimiter
impl OpcodeRateLimiter
Sourcepub fn new(
reset_seconds: u64,
limit_factor: f64,
limits: OpcodeRateLimits,
) -> Self
pub fn new( reset_seconds: u64, limit_factor: f64, limits: OpcodeRateLimits, ) -> Self
A limiter over limits, resetting its window every reset_seconds.
limit_factor scales every budget, so a peer can be given a fraction of the nominal
allowance (Chia’s clients default to 0.6).
Sourcepub fn allow(&mut self, message: &DigMessage) -> bool
pub fn allow(&mut self, message: &DigMessage) -> bool
Whether message may be sent now, charging it against the budget when it may.
A refused message is NOT charged, so a caller that backs off and retries is not permanently penalised for having asked early.
Prefer Self::admit where the caller intends to retry: true/false cannot say
whether waiting could ever help.
Sourcepub fn admit(&mut self, message: &DigMessage) -> Admission
pub fn admit(&mut self, message: &DigMessage) -> Admission
Whether message may be sent now — and, when it may not, whether waiting could help.
The distinction is what keeps a caller from spinning forever: a frequency or
cumulative budget clears on the next window roll, but a message larger than the
per-message cap (or than a whole window’s budget) is refused identically in every window
that will ever exist. Only Admission::Deferred is worth retrying.
Trait Implementations§
Source§impl Clone for OpcodeRateLimiter
impl Clone for OpcodeRateLimiter
Source§fn clone(&self) -> OpcodeRateLimiter
fn clone(&self) -> OpcodeRateLimiter
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moreAuto Trait Implementations§
impl Freeze for OpcodeRateLimiter
impl RefUnwindSafe for OpcodeRateLimiter
impl Send for OpcodeRateLimiter
impl Sync for OpcodeRateLimiter
impl Unpin for OpcodeRateLimiter
impl UnsafeUnpin for OpcodeRateLimiter
impl UnwindSafe for OpcodeRateLimiter
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