retoorandClaude Sonnet 5
72e3c900f2
Implements the core design: a mount table published as an atomically- swapped snapshot; mem/dir/pack/overlay backends; copy-on-write overlay with copy-up and whiteout deletion; a checksummed append journal; compaction with exact-duplicate elimination; single-writer/wait-free- reader concurrency with a structural/content write split; openat2/ Landlock path containment for dir mounts; and load-time pack integrity validation. Zero required third-party dependencies. Sanitizer testing (ASan/UBSan) caught and led to fixing a genuine heap-use-after-free in the snapshot-reclamation path: the textbook "load pointer, then increment its refcount" pattern left a gap a concurrent writer could free through. Closed with a small reclaim_gate rwlock, documented in internal.h and CLAUDE.md since it's a pattern every refcounted structure in the codebase now follows. zip/tar import/export backends, recommended in concept.md Section 11, will not be built — a permanent project decision recorded in CLAUDE.md since concept.md itself is frozen and cannot be edited to reflect it. Includes a runnable demo (examples/demo.c, `make demo`) exercising the library end to end and proving cross-run persistence through the pack file, plus open-source scaffolding: MIT license, README, CONTRIBUTING, and a CI workflow running the test suite under ASan/UBSan/TSan. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UqJpkdJ6Njnt1pw3CbghzB
11 lines
67 B
Plaintext
11 lines
67 B
Plaintext
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