From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001 From: Valentin Popov Date: Mon, 8 Jan 2024 01:21:28 +0400 Subject: Initial vendor packages Signed-off-by: Valentin Popov --- vendor/rayon-core/src/unwind.rs | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 vendor/rayon-core/src/unwind.rs (limited to 'vendor/rayon-core/src/unwind.rs') diff --git a/vendor/rayon-core/src/unwind.rs b/vendor/rayon-core/src/unwind.rs new file mode 100644 index 0000000..9671fa5 --- /dev/null +++ b/vendor/rayon-core/src/unwind.rs @@ -0,0 +1,31 @@ +//! Package up unwind recovery. Note that if you are in some sensitive +//! place, you can use the `AbortIfPanic` helper to protect against +//! accidental panics in the rayon code itself. + +use std::any::Any; +use std::panic::{self, AssertUnwindSafe}; +use std::thread; + +/// Executes `f` and captures any panic, translating that panic into a +/// `Err` result. The assumption is that any panic will be propagated +/// later with `resume_unwinding`, and hence `f` can be treated as +/// exception safe. +pub(super) fn halt_unwinding(func: F) -> thread::Result +where + F: FnOnce() -> R, +{ + panic::catch_unwind(AssertUnwindSafe(func)) +} + +pub(super) fn resume_unwinding(payload: Box) -> ! { + panic::resume_unwind(payload) +} + +pub(super) struct AbortIfPanic; + +impl Drop for AbortIfPanic { + fn drop(&mut self) { + eprintln!("Rayon: detected unexpected panic; aborting"); + ::std::process::abort(); + } +} -- cgit v1.2.3