64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License Version 2.0 with LLVM Exceptions
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* https://llvm.org/LICENSE.txt
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <unifex/coroutine.hpp>
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#if !UNIFEX_NO_COROUTINES
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# include <unifex/async_mutex.hpp>
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# include <unifex/scheduler_concepts.hpp>
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# include <unifex/single_thread_context.hpp>
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# include <unifex/sync_wait.hpp>
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# include <unifex/task.hpp>
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# include <unifex/when_all.hpp>
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# include <gtest/gtest.h>
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using namespace unifex;
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TEST(async_mutex, multiple_threads) {
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#if !defined(UNIFEX_TEST_LIMIT_ASYNC_MUTEX_ITERATIONS)
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constexpr int iterations = 100'000;
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#else
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constexpr int iterations = UNIFEX_TEST_LIMIT_ASYNC_MUTEX_ITERATIONS;
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#endif
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async_mutex mutex;
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int sharedState = 0;
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auto makeTask = [&](manual_event_loop::scheduler scheduler) -> task<int> {
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for (int i = 0; i < iterations; ++i) {
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co_await mutex.async_lock();
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co_await schedule(scheduler);
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++sharedState;
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mutex.unlock();
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}
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co_return 0;
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};
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single_thread_context ctx1;
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single_thread_context ctx2;
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sync_wait(when_all(
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makeTask(ctx1.get_scheduler()),
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makeTask(ctx2.get_scheduler())));
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EXPECT_EQ(2 * iterations, sharedState);
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}
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#endif // UNIFEX_NO_COROUTINES
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