Handle foreign-owned compile artifacts

2026-07-19 05:20:08 +00:00
parent 4f010d37a0
commit ccbe945d62
7 changed files with 201 additions and 15 deletions
@@ -578,7 +578,14 @@ header free-functions are `inline`. The wasm backend exposes only declarations
  held unit and registry locks, silent nonzero and missing-output compiler
  results, compiler descendants, staged-output timeout, prior-generation
  hashes, same-worker recovery, configured-error-page boundedness, residue,
-  and deadline-independent offline precompile.
+  foreign-owned offline-precompile artifacts, and deadline-independent offline
+  precompile. Normal rollback snapshots are hard links. If Linux ownership or
+  link policy rejects that fast path, the compiler copies the prior artifact
+  under the same unit lock and keeps the same all-or-nothing publication.
+  Source-generation markers likewise publish through a same-directory rename,
+  so a runtime user can replace a readable marker created by an administrator.
+  Existing foreign-owned unit, registry, generation, and PCH lock files are
+  opened read-only for `flock`; new locks are still created read-write.
  `scripts/test_cold_component_deadline.sh` separately compiles a deliberately
  cold component that exceeds the development epoch window and proves the
  parent request still renders it. The focused shell gates create temporary