FA-27183 / HTTP ranges / Member archive

A multipart sender resumes framing and payload segments across transport credit windows: zero-length framing components do not consume transport credit · case 03

A multipart sender resumes framing and payload segments across transport credit windows: zero-length framing components do not consume transport credit.

Member previewVariant 3 · 3 implementations · 7 checks per implementation

Case contract

x has nonempty ASCII segments representing alternating boundary/header/body/framing bytes, and nonnegative write budgets. Drain in order, consuming each budget across segment boundaries. Return [one emitted string per budget,segment-index,intra-segment-offset]. Empty segments are skipped even with zero budget. A exhausted plan is stable. These preframed segments isolate cursor management from wire-format construction.

Why this case matters

Range responses combine representation identity, conditional requests, framing, and partial-object state.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
empty-segments fixture 0	`[["--", "bH", "BOD", "Y\r\n"], 3, 2]`	`[["--", "bH", "BOD", "Y\r\n"], 4, 0]`	Failed

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