Ruled 2026-10-08: A, B, C, D and the guard for a half message. Each with
a scene in test_host_mesh.c that failed first.
A. The words of a message after its first are written from the passes
over the messages waiting by (!W): an offer and a wait for that offer
only (a new engine address). A reader removed in mid-message makes no
error; the rest is let go and counted. Before, the error left the
messages waiting in pieces and the node going round for ever.
B. A store to the wait withdraws every offer; (GATE1) and (PAY-SET) do it
first. Before, text begun after a node went round without sleeping
could go to the port of an older offer: text for one node was done by
another.
C. What a finished text printed is put with the messages waiting, as how
it ended is. With no room either is let go and counted; neither is
begun as a message from (FINISH) any more, where a stuck node on the
way held the whole node.
D. Only what a sender is owed from an earlier text -- its output, how it
ended -- holds that sender's next text back; a GONE does not; and what
cannot be noted holds nothing. A node's own messages keep the order
they were made in.
- A message half taken in when its writer is removed is let go
((MQ-MEND)), not kept as if whole.
- Smaller: a refused line no longer ends a waiting text 'Interrupted';
a node's own queued messages may be passed on by 16 nodes, not 15; no
value is left on the stack when a port goes in mid-refusal.
make -C v4 test and sanitize at both widths, hosted-check.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
