78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/*
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* ThreadHelper.actor.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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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 <string>
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#include <thread>
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#include "flow/flow.h"
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#include "flow/network.h"
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#include "flow/ThreadHelper.actor.h"
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#include "flow/Error.h"
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#include "flow/UnitTest.h"
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#include "flow/actorcompiler.h" // This must be the last #include.
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ThreadCallback* ThreadCallback::addCallback(ThreadCallback* cb) {
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return (new ThreadMultiCallback())->addCallback(this)->addCallback(cb);
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}
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// A simple thread object that sends the result
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struct ThreadFutureSendObj {
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void operator()() { tsav->send(Void()); }
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ThreadSingleAssignmentVar<Void>* tsav;
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};
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// A simple thread object that cancels the threadFuture
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struct ThreadFutureCancelObj {
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ThreadFutureCancelObj(ThreadFuture<Void> f) : f(f) {}
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void operator()() { f.cancel(); }
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ThreadFuture<Void> f;
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};
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// This unit test should be running with TSAN enabled binary
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TEST_CASE("/flow/safeThreadFutureToFuture/Send") {
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// std::thread is not working in simulation at present, disable this in simulation
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if (g_network->isSimulated())
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return Void();
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auto* tsav = new ThreadSingleAssignmentVar<Void>;
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state std::thread thread = std::thread{ ThreadFutureSendObj{ tsav } };
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ThreadFuture<Void> f(tsav);
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// change this to unsafeThreadFutureToFuture will get a data-race failure
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wait(safeThreadFutureToFuture(f));
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thread.join();
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return Void();
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}
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// Test the case where the underlying threadFuture is cancelled
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TEST_CASE("/flow/safeThreadFutureToFuture/Cancel") {
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// std::thread is not working in simulation at present, disable this in simulation
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if (g_network->isSimulated())
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return Void();
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ThreadFuture<Void> f = onMainThread([]() -> Future<Void> { return Never(); });
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state std::thread thread = std::thread{ ThreadFutureCancelObj(f) };
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try {
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wait(safeThreadFutureToFuture(f)); // this actor should get actor_cancelled
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ASSERT(false);
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} catch (Error& e) {
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ASSERT(e.code() == error_code_actor_cancelled);
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}
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thread.join();
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return Void();
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}
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