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Add crates/mesh-stream: a 16-entry stream table with initiator/responder parity, per-stream byte credit, a 64 KiB per-stream queue bound, explicit close/reset and a control-first two-class scheduler. It is no_std + alloc and host-tested. The MCP module uses stream 5 for bulk data and stream 6 for latency control. The bulk origin grants two chunks in the request and two more with a Control/WindowUpdate record after each consumed pair. /mesh/bulk?cancel=1 sends Cancel/Cancel, clears the local transfer and resets the peer stream. Real direct two-kernel credit run: 64 KiB in 16 x 4 KiB chunks, 191 ms (0.327 MiB/s) in clean runs against 832 ms for the 1 KiB baseline. The control-during-bulk and cancel rig scenarios are implemented; the final bundle is an explicit open item because the shared host intermittently stalls a large record mid-frame (the receive deadline fails closed and the rig records it). No kernel or ROM change. Signed-off-by: Jupiter Belic <belikh@users.noreply.github.com>
Signed-off-by: Jupiter Belic <belikh@users.noreply.github.com>
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Summary
Implements #246 on top of #245.
crates/mesh-stream: 16-entry stream table, initiator/responder parity, per-stream byte credit (64 KiB max), 64 KiB queue bound, close/reset, control-first scheduler;no_std + alloc, host tests.Control/WindowUpdateafter each consumed pair.GET /mesh/bulk?cancel=1sendsCancel/Cancel, clears both sides and resets the slot.Evidence
cargo test -p mesh-stream: 6 tests (parity/bound, credit exhaustion + control bypass, reset/reclaim, queue bound, control-first scheduling, close transitions).credit_grantcounters andWindowUpdateacceptance observed; rejects stayed zero.Limits
The 8 KiB record path intermittently stalls mid-frame on the shared host; the module fails closed with a partial decoder and the rig records it. The control-during-bulk/cancel end-to-end bundle is therefore an explicit open evidence item, not a pass. No multi-application stream API, no kernel scheduler, no TLS/peer auth.