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#include <mbgl/util/run_loop.hpp>
#include <mbgl/util/timer.hpp>
#include <mbgl/test/util.hpp>
#include <atomic>
#include <condition_variable>
#include <thread>
using namespace mbgl::util;
TEST(RunLoop, Stop) {
RunLoop loop(RunLoop::Type::New);
Timer timer;
timer.start(mbgl::Duration::zero(), mbgl::Duration::zero(), [&] {
loop.stop();
});
loop.run();
}
TEST(RunLoop, MultipleStop) {
RunLoop loop(RunLoop::Type::New);
Timer timer;
timer.start(mbgl::Duration::zero(), mbgl::Duration::zero(), [&] {
loop.stop();
loop.stop();
loop.stop();
loop.stop();
});
loop.run();
}
TEST(RunLoop, MultipleRun) {
RunLoop loop(RunLoop::Type::New);
Timer timer;
timer.start(mbgl::Duration::zero(), mbgl::Duration::zero(), [&] {
loop.stop();
});
loop.run();
bool secondTimeout = false;
timer.start(mbgl::Duration::zero(), mbgl::Duration::zero(), [&] {
secondTimeout = true;
loop.stop();
});
loop.run();
EXPECT_TRUE(secondTimeout);
}
TEST(RunLoop, Priorities) {
std::vector<int> order;
RunLoop loop(RunLoop::Type::New);
loop.invoke([&] { order.push_back(1); });
loop.invoke(RunLoop::Priority::High, [&] { order.push_back(2); });
loop.invoke([&] { order.push_back(3); });
loop.invoke(RunLoop::Priority::High, [&] { order.push_back(4); });
loop.invoke(RunLoop::Priority::Default, [&] { loop.stop(); });
loop.run();
EXPECT_EQ((std::vector<int>{ 2, 4, 1, 3 }), order);
}
TEST(RunLoop, PlatformIntegration) {
std::atomic<int> count1(0);
// No need to be atomic, it will run
// on the main thread.
int count2(0);
std::thread::id mainThread = std::this_thread::get_id();
RunLoop loop;
std::mutex mutex;
std::condition_variable cv;
loop.setPlatformCallback([&] {
EXPECT_NE(mainThread, std::this_thread::get_id());
count1++;
cv.notify_one();
});
auto threadBody = [&]() {
for (unsigned i = 0; i < 100000; ++i) {
loop.invoke([&] {
EXPECT_EQ(mainThread, std::this_thread::get_id());
count2++;
});
}
};
std::thread thread1(threadBody);
std::thread thread2(threadBody);
while (count2 < 200000) {
std::unique_lock<std::mutex> lock(mutex);
cv.wait(lock);
loop.runOnce();
}
EXPECT_EQ(count1, 200000);
EXPECT_EQ(count2, 200000);
thread1.join();
thread2.join();
}
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