rust-lang/futures-rs

Deadlock detection for futures::lock::Mutex

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#2,133 建立於 2020年4月22日

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A-lockC-feature-requesthelp wanted

描述

It would be really nice if Mutex had deadlock detection (including via a feature flag). Especially in an async context where it's hard to peer into the state of tasks, these can be exceptionally hard to debug.

parking_lot does this for its synchronous locks, though it requires you to trigger detection manually on another thread.

cc @ctiller

貢獻者指南

技術棧
rust
領域
backend
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
over 1 week
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Rust asyncfutures rsdeadlock detection
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
20
研究方向
Investigate parking lot's deadlock detection implementation (https://amanieu.github.io/parking lot/parking lot/deadlock/index.html) and adapt it to the async context of futures::lock::Mutex. Consider using a feature flag to enable detection. Review existing discussions in issue #2133 and any related PRs. The goal is to provide a mechanism to detect and report deadlocks, aiding debugging in async environments.