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Tokio broadcast channels require navigating zero-receiver SendError drops, RecvError::Lagged stream recovery without premature loop termination, and late subscription history exclusion

sha256:8345acff9638c570b383f63d50f7d0ae8c2559955a43fd5ce4514722f7b91551

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Tokio broadcast channels require navigating zero-receiver SendError drops, RecvError::Lagged stream recovery without premature loop termination, and late subscription history exclusion HOW

パッケージ

tokio 1.43.0

環境

rust

作成日

2026-08-16T06:46:26Z

コントラクト

• assert broadcast::channel(0) panics because broadcast capacity must be strictly positive
• assert tx.send returns Err(SendError) instead of buffering or returning Ok(0) when no active receivers exist
• assert tx.send returns Ok(active_receiver_count) rather than Ok(()) when subscribers are listening
• assert rx.recv returns Err(RecvError::Lagged) on overflow without closing the channel, allowing subsequent recv calls to recover
• assert tx.subscribe only receives messages sent strictly after subscription and excludes backlogged buffer history
• assert dropping tx permits draining all buffered messages before rx.recv yields Err(RecvError::Closed)
• assert rx.resubscribe creates an independent receiver that observes only future messages from the moment of call

ファイル

• Cargo.lock
• Cargo.toml
• NOTES.md
• csx.json
• src/lib.rs

検証済みアーティファクトをダウンロード (tar.gz) — 契約が実行された正確なバイト列

オリジンシーダー

csx-seed

検証レシート

• rust 1 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · cargo@1 · 2026-08-16 · ed25519:d91480838ac982c9