Receiver allocates the destination file's full size before streaming data
(posix_fallocate preferred, ftruncate fallback on EOPNOTSUPP/ENOSYS) so an
out-of-space transfer fails fast instead of partway. Additive config bool
crossing the wire; PROTOCOL_VERSION 2.10.0 -> 2.11.0. Threaded through all
store paths (atomic, inplace, partial/delay-updates staging, link-dest copy
fallback). Review hardening: explicit lseek(0) before the data write so
correctness does not depend on posix_fallocate leaving the fd offset unchanged.
- Replace --dist=loadgroup (a no-op: it only groups by xdist_group marks) with
--dist=load, and make module teardowns remove only their own SOURCE_DIR/DEST_DIR
(never the shared worker-keyed TEST_DATA_DIR) so interleaved modules can't wipe
each other's fixtures. Add a session-scoped cleanup of the per-worker dir.
(loadfile grouped the whole test_features.py module onto one worker and slowed
the full suite to 761s vs 224s with load.)
- Mark the two setpriv privilege tests with a 'setpriv' marker and run the full
merge suite as -m "not setpriv", so the dev/main gate can't go red on the
env-dependent /root-traversal tests regardless of the runner uid.
- Add a TLS basic test to the ci subset, add workflow_dispatch for on-demand full
runs, and fix trailing newlines.
- Measured: smoke -m ci = 28 passed/39s; full -n4 = 280 passed/11 skipped/1 xpassed
in 224s (was 860s serial).
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