| // Copyright 2023 gRPC authors. |
| // |
| // 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. |
| |
| #include "src/core/lib/promise/inter_activity_latch.h" |
| |
| #include "absl/status/status.h" |
| #include "gtest/gtest.h" |
| |
| #include <grpc/grpc.h> |
| |
| #include "src/core/lib/event_engine/default_event_engine.h" |
| #include "src/core/lib/gprpp/notification.h" |
| #include "src/core/lib/promise/event_engine_wakeup_scheduler.h" |
| #include "src/core/lib/promise/seq.h" |
| |
| using grpc_event_engine::experimental::GetDefaultEventEngine; |
| |
| namespace grpc_core { |
| namespace { |
| |
| TEST(InterActivityLatchTest, Works) { |
| InterActivityLatch<void> latch; |
| |
| // Start some waiting activities |
| Notification n1; |
| auto a1 = MakeActivity( |
| [&] { |
| return Seq(latch.Wait(), [&](Empty) { |
| n1.Notify(); |
| return absl::OkStatus(); |
| }); |
| }, |
| EventEngineWakeupScheduler{GetDefaultEventEngine()}, [](absl::Status) {}); |
| Notification n2; |
| auto a2 = MakeActivity( |
| [&] { |
| return Seq(latch.Wait(), [&](Empty) { |
| n2.Notify(); |
| return absl::OkStatus(); |
| }); |
| }, |
| EventEngineWakeupScheduler{GetDefaultEventEngine()}, [](absl::Status) {}); |
| Notification n3; |
| auto a3 = MakeActivity( |
| [&] { |
| return Seq(latch.Wait(), [&](Empty) { |
| n3.Notify(); |
| return absl::OkStatus(); |
| }); |
| }, |
| EventEngineWakeupScheduler{GetDefaultEventEngine()}, [](absl::Status) {}); |
| |
| ASSERT_FALSE(n1.HasBeenNotified()); |
| ASSERT_FALSE(n2.HasBeenNotified()); |
| ASSERT_FALSE(n3.HasBeenNotified()); |
| |
| // Start a setting activity |
| auto kicker = MakeActivity( |
| [&] { |
| latch.Set(); |
| return absl::OkStatus(); |
| }, |
| EventEngineWakeupScheduler{GetDefaultEventEngine()}, [](absl::Status) {}); |
| |
| // Start another waiting activity |
| Notification n4; |
| auto a4 = MakeActivity( |
| [&] { |
| return Seq(latch.Wait(), [&](Empty) { |
| n4.Notify(); |
| return absl::OkStatus(); |
| }); |
| }, |
| EventEngineWakeupScheduler{GetDefaultEventEngine()}, [](absl::Status) {}); |
| |
| // Everything should finish |
| n1.WaitForNotification(); |
| n2.WaitForNotification(); |
| n3.WaitForNotification(); |
| n4.WaitForNotification(); |
| } |
| |
| } // namespace |
| } // namespace grpc_core |
| |
| int main(int argc, char** argv) { |
| ::testing::InitGoogleTest(&argc, argv); |
| grpc_init(); // for GetDefaultEventEngine |
| int r = RUN_ALL_TESTS(); |
| grpc_shutdown(); |
| return r; |
| } |