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Increase MAX_PTO_EXPONENT to 20 #2498

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antoniovicente merged 1 commit into from
May 27, 2026
+3 −3
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Increase MAX_PTO_EXPONENT to 20 #2498

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6 changes: 3 additions & 3 deletions quiche/src/recovery/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -95,9 +95,9 @@ const LOSS_REDUCTION_FACTOR: f64 = 0.5;
pub(super) const MAX_OUTSTANDING_NON_ACK_ELICITING: usize = 24;

// The upper cap on the exponent when using exponential backoff for probes. With
// a value of 5, the maximum possible value is 2^5 = 32 times the minimum PTO.
// This prevents arithmetic overflow.
const MAX_PTO_EXPONENT: u32 = 5;
// a value of 20, the maximum possible value is 2^20 = 1,048,576 times the
// minimum PTO. This prevents arithmetic overflow.
const MAX_PTO_EXPONENT: u32 = 20;

#[derive(Default)]
struct LossDetectionTimer {
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