io_uring event engine — Stage 2: completion-mode accept, tiers, hardening - #31

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andypost wants to merge 11 commits into

feat/io-uring-stage1from

feat/io-uring-stage2

Commits on Jul 25, 2026

feat(io_uring): resolve feature tiers and extend NXT_IO_URING_FORCE_TIER

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721fc4e
feat(io_uring): stay armed while BLOCKED, latch readiness only

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ecf5195
feat(io_uring): multishot accept for listen sockets (tier ACCEPT)

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7d9ce71
feat(io_uring): detect RECV tier; defer completion-mode recv conn path

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5e36a3f
fix(io_uring): oneshot accept re-armed per completion, not multishot

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66d02d9
fix(io_uring): correctness fixes from multi-angle review

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085c714
fix(io_uring): signal delivery, seccomp kill-switch, drop unusable setup flags

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7c2aa47
fix(event): harden engine-change double failure; share the epoll degrade path

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0b352eb
refactor(io_uring): deduplicate epoll helpers, drop dead machinery

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a3fa70d
docs(io_uring): engine contract, design notes and benchmark results

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4a0591d
fix(io_uring): completion-mode listen-timer path, errno-vs-debug ordering

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6ee2a59