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Avoid `thread::panicking()` in non-poisoning methods of `Mutex` and `RwLock` `Mutex::lock()` and `RwLock::write()` are poison-guarded against panics, in that they set the poison flag if a panic occurs while they're locked. But if we're already in a panic (`thread::panicking()`), they leave the poison flag alone. That check is a bit of a waste for methods that never set the poison flag though, namely `get_mut()`, `into_inner()`, and `RwLock::read()`. These use-cases are now split to avoid that unnecessary call. |
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| .. | ||
| alloc | ||
| backtrace@4e5a3f7292 | ||
| core | ||
| panic_abort | ||
| panic_unwind | ||
| portable-simd | ||
| proc_macro | ||
| profiler_builtins | ||
| rtstartup | ||
| rustc-std-workspace-alloc | ||
| rustc-std-workspace-core | ||
| rustc-std-workspace-std | ||
| std | ||
| stdarch@28335054b1 | ||
| test | ||
| unwind | ||