37 lines
1.2 KiB
Markdown
37 lines
1.2 KiB
Markdown
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---
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model: openai/gpt-5.6-sol
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service: opencode
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session: ses_3e4c90d3eafeqHEtRYSIHgHhpA
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timestamp: 2026-08-18T19:30:01Z
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git_ref: bf06b4f8
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scope: code
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substantive: true
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raw_file: 20260818T193001Z_bf06b4f8_prompt_io.raw.md
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---
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## Prompt
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Fix cancellation during an indeterminate transport write without
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allowing a second RPC msg to corrupt the stream. Keep the transport
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fix separate from the higher-level `to_actor` remediation and explain
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the length-prefixed protocol rather than using unexplained "framed
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send" terminology.
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## Response summary
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Close a msgpack transport stream when cancellation interrupts its
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length-prefixed `send_all()` operation. The stream can no longer be
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safely reused because Trio cannot report how many bytes were written.
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## Files changed
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- `tractor/ipc/_transport.py` - close an interrupted send stream.
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- `tests/ipc/test_each_tpt.py` - cover cancellation during the write.
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## Human edits
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The human required this transport edge-case fix to land as its own
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behavioral commit with a detailed message. During staged review, the
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human also rejected the unexplained "framed send" wording and asked
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for terminology tied directly to the actual transport operation.
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