| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| // Author: cheesy@google.com (Steve Hill) |
| |
| #include "pagespeed/controller/central_controller_callback.h" |
| #include "pagespeed/kernel/base/basictypes.h" |
| #include "pagespeed/kernel/base/function.h" |
| #include "pagespeed/kernel/base/gtest.h" |
| #include "pagespeed/kernel/base/scoped_ptr.h" |
| #include "pagespeed/kernel/base/string.h" |
| #include "pagespeed/kernel/base/thread_system.h" |
| #include "pagespeed/kernel/thread/worker_test_base.h" |
| #include "pagespeed/kernel/thread/queued_worker_pool.h" |
| |
| namespace net_instaweb { |
| |
| namespace { |
| |
| class MockCallbackHandle; |
| |
| struct CallCounts { |
| explicit CallCounts(ThreadSystem* ts) |
| : run_called(0), cancel_called(0), cleanup_called(0), sync(ts) {} |
| |
| int run_called; |
| int cancel_called; |
| int cleanup_called; |
| WorkerTestBase::SyncPoint sync; |
| scoped_ptr<MockCallbackHandle> handle; |
| }; |
| |
| class MockCentralControllerCallback |
| : public CentralControllerCallback<MockCallbackHandle> { |
| public: |
| MockCentralControllerCallback(Sequence* sequence, struct CallCounts* counts) |
| : CentralControllerCallback< |
| MockCallbackHandle>::CentralControllerCallback(sequence), |
| counts_(counts), steal_pointer_(false) { |
| } |
| |
| virtual ~MockCentralControllerCallback() {} |
| |
| virtual void RunImpl(scoped_ptr<MockCallbackHandle>* handle) { |
| ++counts_->run_called; |
| if (steal_pointer_) { |
| counts_->handle.reset(handle->release()); |
| } |
| counts_->sync.Notify(); |
| } |
| |
| virtual void CancelImpl() { |
| ++counts_->cancel_called; |
| counts_->sync.Notify(); |
| } |
| |
| void SetStealPointer(bool steal) { steal_pointer_ = steal; } |
| |
| private: |
| struct CallCounts* counts_; |
| bool steal_pointer_; |
| }; |
| |
| class MockCallbackHandle { |
| public: |
| explicit MockCallbackHandle(CallCounts* counts, |
| MockCentralControllerCallback* callback) |
| : counts_(counts), callback_(callback) { |
| callback_->SetTransactionContext(this); |
| } |
| |
| ~MockCallbackHandle() { |
| if (counts_ != nullptr) { |
| ++counts_->cleanup_called; |
| } |
| } |
| |
| void CallRun() { |
| callback_->CallRun(); |
| } |
| |
| void CallCancel() { |
| counts_ = nullptr; |
| callback_->CallCancel(); |
| } |
| |
| private: |
| struct CallCounts* counts_; |
| MockCentralControllerCallback* callback_; |
| }; |
| |
| // Inheriting from WorkerTestBase since it has useful stuff like SyncPoint. |
| class CentralControllerCallbackTest : public WorkerTestBase { |
| public: |
| CentralControllerCallbackTest() |
| : worker_(new QueuedWorkerPool(2, "central_controller_test1", |
| thread_runtime_.get())) {} |
| |
| protected: |
| Function* ScheduleMockCallback(MockCentralControllerCallback* callback, |
| struct CallCounts* counts) { |
| MockCallbackHandle* ctx = new MockCallbackHandle(counts, callback); |
| return MakeFunction(ctx, &MockCallbackHandle::CallRun, |
| &MockCallbackHandle::CallCancel); |
| } |
| |
| Function* CreateMockCallback(Sequence* sequence, struct CallCounts* counts) { |
| return ScheduleMockCallback( |
| new MockCentralControllerCallback(sequence, counts), counts); |
| } |
| |
| void WaitUntilSequenceCompletes(Sequence* sequence) { |
| SyncPoint done(thread_runtime_.get()); |
| sequence->Add(new NotifyRunFunction(&done)); |
| done.Wait(); |
| } |
| |
| scoped_ptr<QueuedWorkerPool> worker_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(CentralControllerCallbackTest); |
| }; |
| |
| TEST_F(CentralControllerCallbackTest, RegularRun) { |
| struct CallCounts counts(thread_runtime_.get()); |
| Sequence* sequence = worker_->NewSequence(); |
| sequence->Add(CreateMockCallback(sequence, &counts)); |
| |
| counts.sync.Wait(); |
| WaitUntilSequenceCompletes(sequence); |
| |
| EXPECT_EQ(1, counts.run_called); |
| EXPECT_EQ(1, counts.cleanup_called); |
| EXPECT_EQ(0, counts.cancel_called); |
| } |
| |
| TEST_F(CentralControllerCallbackTest, CancelImmediately) { |
| struct CallCounts counts(thread_runtime_.get()); |
| Sequence* sequence = worker_->NewSequence(); |
| sequence->Add(MakeFunction(CreateMockCallback(sequence, &counts), |
| &Function::CallCancel)); |
| |
| counts.sync.Wait(); |
| WaitUntilSequenceCompletes(sequence); |
| |
| EXPECT_EQ(0, counts.run_called); |
| EXPECT_EQ(0, counts.cleanup_called); |
| EXPECT_EQ(1, counts.cancel_called); |
| } |
| |
| TEST_F(CentralControllerCallbackTest, CancelAfterRunRequeue) { |
| struct CallCounts counts(thread_runtime_.get()); |
| Sequence* sequence = worker_->NewSequence(); |
| |
| // Create another worker pool/sequence that are shutdown. When the callback |
| // is enqued onto this sequence, its Cancel should be immediately called. |
| scoped_ptr<QueuedWorkerPool> worker2(new QueuedWorkerPool( |
| 2, "central_controller_test2", thread_runtime_.get())); |
| Sequence* sequence2 = worker2->NewSequence(); |
| worker2->ShutDown(); |
| |
| sequence->Add(CreateMockCallback(sequence2, &counts)); |
| |
| counts.sync.Wait(); |
| // It's especially important with this test to make sure all the cleanup |
| // has completed from the first sequence. Otherwise the MockCallbackHandle |
| // destructor won't yet have been run. |
| WaitUntilSequenceCompletes(sequence); |
| |
| EXPECT_EQ(0, counts.run_called); |
| EXPECT_EQ(1, counts.cleanup_called); |
| EXPECT_EQ(1, counts.cancel_called); |
| } |
| |
| TEST_F(CentralControllerCallbackTest, CancelAfterCancelRequeue) { |
| struct CallCounts counts(thread_runtime_.get()); |
| Sequence* sequence = worker_->NewSequence(); |
| |
| // Create another worker pool/sequence that are shutdown. When the callback |
| // is enqued onto this sequence, its Cancel should be immediately called. |
| scoped_ptr<QueuedWorkerPool> worker2(new QueuedWorkerPool( |
| 2, "central_controller_test2", thread_runtime_.get())); |
| Sequence* sequence2 = worker2->NewSequence(); |
| worker2->ShutDown(); |
| |
| // Call Cancel() on the callback instead of Run in CancelAfterRunRequeue. |
| sequence->Add(MakeFunction(CreateMockCallback(sequence2, &counts), |
| &Function::CallCancel)); |
| |
| counts.sync.Wait(); |
| // It's especially important with this test to make sure all the cleanup |
| // has completed from the first sequence. Otherwise the MockCallbackHandle |
| // destructor won't yet have been run. |
| WaitUntilSequenceCompletes(sequence); |
| |
| EXPECT_EQ(0, counts.run_called); |
| EXPECT_EQ(0, counts.cleanup_called); // The context shouldn't be created. |
| EXPECT_EQ(1, counts.cancel_called); |
| } |
| |
| TEST_F(CentralControllerCallbackTest, RegularRunWithPointerSteal) { |
| struct CallCounts counts(thread_runtime_.get()); |
| Sequence* sequence = worker_->NewSequence(); |
| MockCentralControllerCallback* callback = |
| new MockCentralControllerCallback(sequence, &counts); |
| callback->SetStealPointer(true); |
| sequence->Add(ScheduleMockCallback(callback, &counts)); |
| |
| counts.sync.Wait(); |
| WaitUntilSequenceCompletes(sequence); |
| |
| EXPECT_EQ(1, counts.run_called); |
| EXPECT_EQ(0, counts.cleanup_called); |
| EXPECT_EQ(0, counts.cancel_called); |
| |
| counts.handle.reset(); |
| EXPECT_EQ(1, counts.cleanup_called); |
| } |
| |
| } // namespace |
| |
| } // namespace net_instaweb |