79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
/*
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* ParallelStreamCorrectness.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 <vector>
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#include "fdbclient/ParallelStream.actor.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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namespace ParallelStreamTest {
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struct TestValue {
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int x;
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TestValue(int x) : x(x) {}
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int expectedSize() const { return sizeof(int); }
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};
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ACTOR static Future<Void> produce(ParallelStream<ParallelStreamTest::TestValue>::Fragment* fragment,
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ParallelStreamTest::TestValue value) {
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wait(delay(deterministicRandom()->random01()));
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fragment->send(value);
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wait(delay(deterministicRandom()->random01()));
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fragment->finish();
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return Void();
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}
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ACTOR static Future<Void> consume(FutureStream<ParallelStreamTest::TestValue> stream, int expected) {
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state int next;
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try {
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loop {
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ParallelStreamTest::TestValue value = waitNext(stream);
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ASSERT(value.x == next++);
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}
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} catch (Error& e) {
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ASSERT(e.code() == error_code_end_of_stream);
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ASSERT(next == expected);
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return Void();
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}
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}
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} // namespace ParallelStreamTest
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TEST_CASE("/fdbclient/ParallelStream") {
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state PromiseStream<ParallelStreamTest::TestValue> results;
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state size_t bufferLimit = deterministicRandom()->randomInt(0, 21);
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state size_t numProducers = deterministicRandom()->randomInt(1, 1001);
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state ParallelStream<ParallelStreamTest::TestValue> parallelStream(results, bufferLimit);
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state Future<Void> consumer = ParallelStreamTest::consume(results.getFuture(), numProducers);
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state std::vector<Future<Void>> producers;
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TraceEvent("StartingParallelStreamTest").detail("BufferLimit", bufferLimit).detail("NumProducers", numProducers);
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state int i = 0;
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for (; i < numProducers; ++i) {
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ParallelStream<ParallelStreamTest::TestValue>::Fragment* fragment = wait(parallelStream.createFragment());
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producers.push_back(ParallelStreamTest::produce(fragment, ParallelStreamTest::TestValue(i)));
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}
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wait(parallelStream.finish());
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wait(consumer);
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return Void();
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}
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void forceLinkParallelStreamTests() {}
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