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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-15 03:34:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-15 03:34:50 +0000 |
commit | def92d1b8e9d373e2f6f27c366d578d97d8960c6 (patch) | |
tree | 2ef34b9ad8bb9a9220e05d60352558b15f513894 /toolkit/crashreporter/client/app/src/std/thread.rs | |
parent | Adding debian version 125.0.3-1. (diff) | |
download | firefox-def92d1b8e9d373e2f6f27c366d578d97d8960c6.tar.xz firefox-def92d1b8e9d373e2f6f27c366d578d97d8960c6.zip |
Merging upstream version 126.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/crashreporter/client/app/src/std/thread.rs')
-rw-r--r-- | toolkit/crashreporter/client/app/src/std/thread.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/toolkit/crashreporter/client/app/src/std/thread.rs b/toolkit/crashreporter/client/app/src/std/thread.rs new file mode 100644 index 0000000000..d2dc74702a --- /dev/null +++ b/toolkit/crashreporter/client/app/src/std/thread.rs @@ -0,0 +1,45 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +pub use std::thread::*; + +// Mock `spawn` just to issue a warning that mocking within the thread won't work without manual +// intervention. +pub fn spawn<F, T>(f: F) -> JoinHandle<T> +where + F: FnOnce() -> T + Send + 'static, + T: Send + 'static, +{ + eprintln!("warning: mocking won't work in `std::thread::spawn`ed threads by default. Use `std::mock::SharedMockData` if mocking is needed and it's safe to do so."); + std::thread::spawn(f) +} + +pub struct Scope<'scope, 'env: 'scope> { + mock_data: super::mock::SharedMockData, + scope: &'scope std::thread::Scope<'scope, 'env>, +} + +impl<'scope, 'env> Scope<'scope, 'env> { + pub fn spawn<F, T>(&self, f: F) -> ScopedJoinHandle<'scope, T> + where + F: FnOnce() -> T + Send + 'scope, + T: Send + 'scope, + { + let mock_data = self.mock_data.clone(); + self.scope.spawn(move || { + // # Safety + // `thread::scope` guarantees that the mock data will outlive the thread. + unsafe { mock_data.set() }; + f() + }) + } +} + +pub fn scope<'env, F, T>(f: F) -> T +where + F: for<'scope> FnOnce(Scope<'scope, 'env>) -> T, +{ + let mock_data = super::mock::SharedMockData::new(); + std::thread::scope(|scope| f(Scope { mock_data, scope })) +} |