TEST(AsyncTask, ThreadSafety) {
RunLoop loop;
unsigned count = 0;
AsyncTask async([&count] { ++count; });
unsigned numThreads = 25;
auto callback = [&] {
if (!--numThreads) {
loop.stop();
}
};
std::vector<std::unique_ptr<Thread<TestWorker>>> threads;
std::vector<std::unique_ptr<mbgl::AsyncRequest>> requests;
ThreadContext context = {"Test"};
for (unsigned i = 0; i < numThreads; ++i) {
std::unique_ptr<Thread<TestWorker>> thread =
std::make_unique<Thread<TestWorker>>(context, &async);
requests.push_back(
thread->invokeWithCallback(&TestWorker::runWithCallback, callback));
threads.push_back(std::move(thread));
}
loop.run();
// We expect here more than 1 but 1 would also be
// a valid result, although very unlikely (I hope).
EXPECT_GT(count, 0u);
}
TEST(AsyncTask, ThreadSafety) {
RunLoop loop;
unsigned count = 0, numThreads = 25;
std::atomic_uint completed(numThreads);
AsyncTask async([&count] { ++count; });
auto retainer = Scheduler::GetBackground();
auto mailbox = std::make_shared<Mailbox>(*retainer);
TestWorker worker(&async);
ActorRef<TestWorker> workerRef(worker, mailbox);
for (unsigned i = 0; i < numThreads; ++i) {
// The callback runs on the worker, thus the atomic type.
workerRef.invoke(&TestWorker::runWithCallback, [&] { if (!--completed) loop.stop(); });
}
loop.run();
// We expect here more than 1 but 1 would also be
// a valid result, although very unlikely (I hope).
EXPECT_GT(count, 0u);
}
TEST(Timer, Repeat) {
RunLoop loop;
Timer timer;
unsigned count = 10;
auto callback = [&] {
if (!--count) {
loop.stop();
}
};
auto interval = std::chrono::milliseconds(50);
auto expectedTotalTime = interval * count;
auto first = mbgl::Clock::now();
timer.start(interval, interval, callback);
loop.run();
using namespace std::chrono;
auto totalTime = duration_cast<milliseconds>(mbgl::Clock::now() - first);
EXPECT_GE(totalTime, expectedTotalTime * 0.8);
EXPECT_LE(totalTime, expectedTotalTime * 1.2);
}
TEST(Timer, StartOverrides) {
RunLoop loop;
Timer timer;
auto interval1 = std::chrono::milliseconds(50);
auto interval2 = std::chrono::milliseconds(250);
auto expectedTotalTime = interval1 + interval2;
int count = 0;
auto callback2 = [&] {
++count;
loop.stop();
};
auto callback1 = [&] {
++count;
timer.start(interval2, mbgl::Duration::zero(), callback2);
};
auto first = mbgl::Clock::now();
timer.start(interval1, mbgl::Duration::zero(), callback1);
loop.run();
using namespace std::chrono;
auto totalTime = duration_cast<milliseconds>(mbgl::Clock::now() - first);
EXPECT_EQ(count, 2);
EXPECT_GE(totalTime, expectedTotalTime * 0.8);
EXPECT_LE(totalTime, expectedTotalTime * 1.2);
}
TEST(Timer, DestroyShouldStop) {
RunLoop loop;
auto timer1 = std::make_unique<Timer>();
Timer timer2;
auto interval1 = std::chrono::milliseconds(50);
auto interval2 = std::chrono::milliseconds(250);
auto expectedTotalTime = interval2;
int count = 0;
auto callback1 = [&] {
++count;
timer1.reset();
};
auto callback2 = [&] {
++count;
loop.stop();
};
auto first = mbgl::Clock::now();
timer1->start(interval1, interval1, callback1);
timer2.start(interval2, mbgl::Duration::zero(), callback2);
loop.run();
using namespace std::chrono;
auto totalTime = duration_cast<milliseconds>(mbgl::Clock::now() - first);
EXPECT_EQ(count, 2);
EXPECT_GE(totalTime, expectedTotalTime * 0.8);
EXPECT_LE(totalTime, expectedTotalTime * 1.2);
}
TEST(Timer, Basic) {
RunLoop loop;
Timer timer;
auto callback = [&loop] { loop.stop(); };
auto interval = std::chrono::milliseconds(300);
auto expectedTotalTime = interval;
auto first = mbgl::Clock::now();
timer.start(interval, mbgl::Duration::zero(), callback);
loop.run();
using namespace std::chrono;
auto totalTime = duration_cast<milliseconds>(mbgl::Clock::now() - first);
// These are not high precision timers. Especially libuv uses
// cached time from the beginning of of the main loop iteration
// and it is very prone to fire earlier, which is, odd.
EXPECT_GE(totalTime, expectedTotalTime * 0.8);
EXPECT_LE(totalTime, expectedTotalTime * 1.2);
}