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71 lines
1.1 KiB
71 lines
1.1 KiB
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <mutex>
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void alarm1_FN(std::mutex& m) {
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m.lock();
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m.lock();
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}
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void alarm2_FN(std::mutex& m) {
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m.try_lock();
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m.lock();
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}
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void no_alarm1(std::mutex& m) {
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for (int i = 0; i < 999999; i++) {
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m.try_lock();
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}
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}
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void ensure_locked(std::mutex& m) { m.try_lock(); }
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void ensure_unlocked(std::mutex& m) {
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ensure_locked(m);
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m.unlock();
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}
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void ends_locked(std::mutex& m) {
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for (int i = 0; i < 999999; i++) {
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ensure_unlocked(m);
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ensure_locked(m);
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}
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}
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void starts_with_lock(std::mutex& m) {
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for (int i = 0; i < 999999; i++) {
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m.lock();
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ensure_unlocked(m);
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}
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}
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void alarm3_FN() {
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std::mutex m;
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ends_locked(m);
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starts_with_lock(m);
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}
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void no_alarm3(bool b) {
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std::mutex m;
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if (b) {
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m.lock();
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}
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if (b) {
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m.unlock();
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}
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}
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void alarm3(bool b) {
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std::mutex m;
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if (b) {
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m.lock();
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}
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if (b) {
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m.lock();
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}
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}
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