design: runtime/IO abstraction + io_uring net fast path (closes #27, closes #28)#206
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…loses #28) RUNTIME_ABSTRACTION.md (#27): the minimal Runtime trait (accept/recv/send/timer/ spawn_on_shard) keeping monoio/glommio/tokio swappable behind compile-time monomorphization + Cargo-feature backend select; owned-buffer model; per-shard timer wheel; does not re-pick the default runtime (defers to the #26 bake-off). Per-backend builds (Linux-io_uring + portable epoll/kqueue) reconciled with the one-binary-per-arch promise. IOURING_DATAPATH.md (#28): one ring per shard, registered fixed-buffer slab in kernel buffer-groups, multishot accept/recv with one-shot fallback chosen by a startup feature probe, no cross-shard buffers, persistence write path (#67) reuses the slab. Authored+reviewed via workflow. CI passes. Closes #27, closes #28. Signed-off-by: Zeke <ezequiel.lares@outlook.com>
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M2 Tier-A foundation. Authored + adversarially reviewed via workflow.
RUNTIME_ABSTRACTION.md (#27): the minimal Runtime trait (accept/recv/send/timer/spawn_on_shard) keeping monoio/glommio/tokio swappable via compile-time monomorphization + Cargo-feature backend select; owned-buffer model (copy only on the tokio fallback); per-shard timer wheel; does not re-pick the default runtime (defers to the #26 bake-off). Per-backend builds reconciled with the one-binary-per-arch promise.
IOURING_DATAPATH.md (#28): one ring per shard, registered fixed-buffer slab in kernel buffer-groups, multishot accept/recv with one-shot fallback chosen by a startup feature probe, no cross-shard buffers; the #67 persistence write path reuses the slab.
CI passes (RUNTIME_ABSTRACTION 9, IOURING_DATAPATH 8 citations). Closes #27, closes #28.
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