alarm_test.cc

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/*
 *
 * Copyright 2015 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 <condition_variable>
#include <memory>
#include <mutex>
#include <thread>
 
#include <gtest/gtest.h>
 
#include <grpcpp/alarm.h>
#include <grpcpp/completion_queue.h>
 
#include "test/core/util/test_config.h"
 
namespace grpc {
namespace {
 
TEST(AlarmTest, RegularExpiry) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm alarm;
  alarm.Set(&cq, grpc_timeout_seconds_to_deadline(1), junk);
 
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(10));
 
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_TRUE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, RegularExpiryMultiSet) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm alarm;
 
  for (int i = 0; i < 3; i++) {
    alarm.Set(&cq, grpc_timeout_seconds_to_deadline(1), junk);
 
    void* output_tag;
    bool ok;
    const CompletionQueue::NextStatus status =
        cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(10));
 
    EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
    EXPECT_TRUE(ok);
    EXPECT_EQ(junk, output_tag);
  }
}
 
TEST(AlarmTest, RegularExpiryMultiSetMultiCQ) {
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm alarm;
 
  for (int i = 0; i < 3; i++) {
    CompletionQueue cq;
    alarm.Set(&cq, grpc_timeout_seconds_to_deadline(1), junk);
 
    void* output_tag;
    bool ok;
    const CompletionQueue::NextStatus status =
        cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(10));
 
    EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
    EXPECT_TRUE(ok);
    EXPECT_EQ(junk, output_tag);
  }
}
 
struct Completion {
  bool completed = false;
  std::mutex mu;
  std::condition_variable cv;
};
 
TEST(AlarmTest, CallbackRegularExpiry) {
  Alarm alarm;
 
  auto c = std::make_shared<Completion>();
  alarm.Set(std::chrono::system_clock::now() + std::chrono::seconds(1),
            [c](bool ok) {
              EXPECT_TRUE(ok);
              std::lock_guard<std::mutex> l(c->mu);
              c->completed = true;
              c->cv.notify_one();
            });
 
  std::unique_lock<std::mutex> l(c->mu);
  EXPECT_TRUE(c->cv.wait_until(
      l, std::chrono::system_clock::now() + std::chrono::seconds(10),
      [c] { return c->completed; }));
}
 
TEST(AlarmTest, CallbackZeroExpiry) {
  Alarm alarm;
 
  auto c = std::make_shared<Completion>();
  alarm.Set(grpc_timeout_seconds_to_deadline(0), [c](bool ok) {
    EXPECT_TRUE(ok);
    std::lock_guard<std::mutex> l(c->mu);
    c->completed = true;
    c->cv.notify_one();
  });
 
  std::unique_lock<std::mutex> l(c->mu);
  EXPECT_TRUE(c->cv.wait_until(
      l, std::chrono::system_clock::now() + std::chrono::seconds(10),
      [c] { return c->completed; }));
}
 
TEST(AlarmTest, CallbackNegativeExpiry) {
  Alarm alarm;
 
  auto c = std::make_shared<Completion>();
  alarm.Set(std::chrono::system_clock::now() + std::chrono::seconds(-1),
            [c](bool ok) {
              EXPECT_TRUE(ok);
              std::lock_guard<std::mutex> l(c->mu);
              c->completed = true;
              c->cv.notify_one();
            });
 
  std::unique_lock<std::mutex> l(c->mu);
  EXPECT_TRUE(c->cv.wait_until(
      l, std::chrono::system_clock::now() + std::chrono::seconds(10),
      [c] { return c->completed; }));
}
 
TEST(AlarmTest, MultithreadedRegularExpiry) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  void* output_tag;
  bool ok;
  CompletionQueue::NextStatus status;
  Alarm alarm;
 
  std::thread t1([&alarm, &cq, &junk] {
    alarm.Set(&cq, grpc_timeout_seconds_to_deadline(1), junk);
  });
 
  std::thread t2([&cq, &ok, &output_tag, &status] {
    status =
        cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(10));
  });
 
  t1.join();
  t2.join();
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_TRUE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, DeprecatedRegularExpiry) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm alarm(&cq, grpc_timeout_seconds_to_deadline(1), junk);
 
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(10));
 
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_TRUE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, MoveConstructor) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm first;
  first.Set(&cq, grpc_timeout_seconds_to_deadline(1), junk);
  Alarm second(std::move(first));
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(10));
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_TRUE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, MoveAssignment) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm first;
  first.Set(&cq, grpc_timeout_seconds_to_deadline(1), junk);
  Alarm second(std::move(first));
  first = std::move(second);
 
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(10));
 
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_TRUE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, RegularExpiryChrono) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  std::chrono::system_clock::time_point one_sec_deadline =
      std::chrono::system_clock::now() + std::chrono::seconds(1);
  Alarm alarm;
  alarm.Set(&cq, one_sec_deadline, junk);
 
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(10));
 
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_TRUE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, ZeroExpiry) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm alarm;
  alarm.Set(&cq, grpc_timeout_seconds_to_deadline(0), junk);
 
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(1));
 
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_TRUE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, NegativeExpiry) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm alarm;
  alarm.Set(&cq, grpc_timeout_seconds_to_deadline(-1), junk);
 
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(1));
 
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_TRUE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, Cancellation) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  Alarm alarm;
  alarm.Set(&cq, grpc_timeout_seconds_to_deadline(10), junk);
  alarm.Cancel();
 
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(1));
 
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_FALSE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, CallbackCancellation) {
  Alarm alarm;
 
  auto c = std::make_shared<Completion>();
  alarm.Set(std::chrono::system_clock::now() + std::chrono::seconds(10),
            [c](bool ok) {
              EXPECT_FALSE(ok);
              std::lock_guard<std::mutex> l(c->mu);
              c->completed = true;
              c->cv.notify_one();
            });
  alarm.Cancel();
 
  std::unique_lock<std::mutex> l(c->mu);
  EXPECT_TRUE(c->cv.wait_until(
      l, std::chrono::system_clock::now() + std::chrono::seconds(1),
      [c] { return c->completed; }));
}
 
TEST(AlarmTest, CallbackCancellationLocked) {
  Alarm alarm;
 
  auto c = std::make_shared<Completion>();
  alarm.Set(std::chrono::system_clock::now() + std::chrono::seconds(10),
            [c](bool ok) {
              EXPECT_FALSE(ok);
              std::lock_guard<std::mutex> l(c->mu);
              c->completed = true;
              c->cv.notify_one();
            });
  std::unique_lock<std::mutex> l(c->mu);
  alarm.Cancel();
 
  EXPECT_TRUE(c->cv.wait_until(
      l, std::chrono::system_clock::now() + std::chrono::seconds(1),
      [c] { return c->completed; }));
}
 
TEST(AlarmTest, SetDestruction) {
  CompletionQueue cq;
  void* junk = reinterpret_cast<void*>(1618033);
  {
    Alarm alarm;
    alarm.Set(&cq, grpc_timeout_seconds_to_deadline(10), junk);
  }
 
  void* output_tag;
  bool ok;
  const CompletionQueue::NextStatus status =
      cq.AsyncNext(&output_tag, &ok, grpc_timeout_seconds_to_deadline(1));
 
  EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
  EXPECT_FALSE(ok);
  EXPECT_EQ(junk, output_tag);
}
 
TEST(AlarmTest, CallbackSetDestruction) {
  auto c = std::make_shared<Completion>();
  {
    Alarm alarm;
    alarm.Set(std::chrono::system_clock::now() + std::chrono::seconds(10),
              [c](bool ok) {
                EXPECT_FALSE(ok);
                std::lock_guard<std::mutex> l(c->mu);
                c->completed = true;
                c->cv.notify_one();
              });
  }
 
  std::unique_lock<std::mutex> l(c->mu);
  EXPECT_TRUE(c->cv.wait_until(
      l, std::chrono::system_clock::now() + std::chrono::seconds(1),
      [c] { return c->completed; }));
}
 
TEST(AlarmTest, UnsetDestruction) {
  CompletionQueue cq;
  Alarm alarm;
}
 
}  // namespace
}  // namespace grpc
 
int main(int argc, char** argv) {
  grpc::testing::TestEnvironment env(&argc, argv);
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}