fix: Keep rollback input labels collision-free across input delay changes - #648
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realpoke wants to merge 1 commit into
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fix: Keep rollback input labels collision-free across input delay changes#648realpoke wants to merge 1 commit into
realpoke wants to merge 1 commit into
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…nges Input labels are computed as tick + input_delay. When input_delay changes at runtime, consecutive ticks can produce duplicate labels (delay decreased) or skip labels entirely (delay increased). Local history and remote receivers then disagree about which input belongs to which tick, corrupting rollback for the affected range. Track the last submitted label: skip labels that would collide, and backfill skipped labels with the current input so the stream stays gap-free.
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Input labels are tick +
input_delay, so changinginput_delayat runtime makes consecutive ticks produce duplicate labels (delay decreased) or skip labels (delay increased).Local history and remote receivers then disagree about which input belongs to which tick and rollback corrupts for that range.
We now track the last submitted label, colliding labels are skipped and skipped labels are backfilled with the current input so the stream stays collision-free and gap-free.