37 lines
2.3 KiB
Markdown
37 lines
2.3 KiB
Markdown
# Saved transaction buffer source fixture
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**EXPERIMENTAL / INCONCLUSIVE.** The protocol and source audit are in
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[the report](../../../docs/design/STEP20C_SAVED_TRANSACTION_BUFFER_PROBE.md).
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This directory preserves only reviewed source. It does not add a production
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dependency or authorize a SceneFX merge. Generated builds, sockets, captures,
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large logs and results belong under a private LAB outside Git.
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`prepare.sh` reconstructs pinned disposable sources and compiles the C17
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controlled XDG client. `run.py LAB MODE` reserves a locked persistent budget
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before a headless run; modes are `control`, `private_standard` and
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`private_mosaic`, once each. `analyze.py LAB` derives a bounded matrix from
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the raw event/PNG files and writes manifests. `test-budget.py` exercises
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the ledger without launching a compositor. No command may use the daily IPC
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socket; runner IPC always passes `swaymsg -s` with the private socket.
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For the completed campaign, use each run's manifest-covered
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`runs/*/fixture-source.py` to reconstruct the exact executed code. The current
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`run.py` matches the final private Mosaic copy (SHA-256 `cdece69cf956e550779bd992b0d38234629ca1e611dfb3fb0348c04841c47f59`).
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The pristine copy (`bc041eb7be89da9e198bb9ca2e25cfe86467c264e3687e6d9d3f3836e82ce40c`)
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had no pointer injector. The private-standard copy
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(`67aa3fb94901739bea0b1d0e0cf881081d2388a02256dddc45282d7a4bc86b25`)
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added six retained-window pointer actions; they delayed its valid ACK past
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timeout. The final copy removed those actions. Do not rerun this exhausted
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campaign or treat the current source as identical to all historical runs.
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The default transaction timeout is 200 ms; the fixture requests
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`-Dtxn-timeout=1200` for each comparable mode. A source trace, configure
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hold and a screenshot alone do not establish saved-buffer rendering: the
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saved node must be nonempty, enabled, in the render list, and geometrically
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cross the tested boundary. Missing observations are NOT EXERCISED or
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INCONCLUSIVE. Historical ledgers are separate and never reset. The completed
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LAB is `/tmp/swayfx-mosaic-nested-grab-KYJ2pj1o`; its ledger has one run
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per mode. **Do not rerun a mode or reset this ledger.** The private-standard
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ACK episode timed out during slow fixture input, and the Mosaic target camera
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settled at 1760, leaving its snapshot outside H1. The partial-overflow gate
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is NOT EXERCISED; see the report for exact limits.
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