FA-11543 / Filesystem semantics / Member archive

Unlinking the last name invalidates an open file · case 03

Unlinking the last name invalidates an open file.

Member previewVariant 3 · 3 implementations · 6 checks per implementation

Case contract

Deterministic in-memory filesystem model. Given initial positive link count and nonnegative open count, remove one link; return [remaining links, whether inode survives].

Why this case matters

An offline semantic experiment for file API clients; it models only the stated operations, not a complete operating system.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
one descriptor retains last unlinked inode	`[0, false]`	`[0, true]`	Failed

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