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polyfill_thread: ensure mutex was locked before signaling stop
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89a2d48cf8
commit
bdd09d6844
1 changed files with 13 additions and 7 deletions
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@ -19,8 +19,8 @@
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namespace Common {
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template <typename Condvar, typename Lock, typename Pred>
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void CondvarWait(Condvar& cv, Lock& lock, std::stop_token token, Pred&& pred) {
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cv.wait(lock, token, std::move(pred));
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void CondvarWait(Condvar& cv, std::unique_lock<Lock>& lk, std::stop_token token, Pred&& pred) {
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cv.wait(lk, token, std::move(pred));
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}
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template <typename Rep, typename Period>
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@ -332,13 +332,17 @@ private:
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namespace Common {
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template <typename Condvar, typename Lock, typename Pred>
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void CondvarWait(Condvar& cv, Lock& lock, std::stop_token token, Pred pred) {
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void CondvarWait(Condvar& cv, std::unique_lock<Lock>& lk, std::stop_token token, Pred pred) {
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if (token.stop_requested()) {
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return;
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}
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std::stop_callback callback(token, [&] { cv.notify_all(); });
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cv.wait(lock, [&] { return pred() || token.stop_requested(); });
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std::stop_callback callback(token, [&] {
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{ std::scoped_lock lk2{*lk.mutex()}; }
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cv.notify_all();
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});
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cv.wait(lk, [&] { return pred() || token.stop_requested(); });
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}
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template <typename Rep, typename Period>
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@ -353,8 +357,10 @@ bool StoppableTimedWait(std::stop_token token, const std::chrono::duration<Rep,
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std::stop_callback cb(token, [&] {
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// Wake up the waiting thread.
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std::unique_lock lk{m};
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stop_requested = true;
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{
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std::scoped_lock lk{m};
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stop_requested = true;
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}
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cv.notify_one();
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});
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