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#include <mbgl/util/run_loop.hpp>
#include <mbgl/util/thread.hpp>
#include <mbgl/util/thread_local.hpp>
#include <mbgl/test/util.hpp>
#include <future>
using namespace mbgl::util;
namespace {
class TestThread {
public:
TestThread(mbgl::ActorRef<TestThread>, int *number_) {
number.set(number_);
}
~TestThread() {
number.set(nullptr);
}
void getNumber(std::promise<int> result){
result.set_value(*number.get());
}
private:
static ThreadLocal<int> number;
};
ThreadLocal<int> TestThread::number;
} // namespace
TEST(ThreadLocalStorage, Basic) {
RunLoop loop;
int number1 = 1;
int number2 = 2;
int number3 = 3;
Thread<TestThread> thread1("Test", &number1);
Thread<TestThread> thread2("Test", &number2);
Thread<TestThread> thread3("Test", &number3);
auto thread1Ref = thread1.actor();
auto thread2Ref = thread2.actor();
auto thread3Ref = thread3.actor();
std::promise<int> result1;
auto result1Future = result1.get_future();
thread1Ref.invoke(&TestThread::getNumber, std::move(result1));
EXPECT_EQ(number1, result1Future.get());
std::promise<int> result2;
auto result2Future = result2.get_future();
thread2Ref.invoke(&TestThread::getNumber, std::move(result2));
EXPECT_EQ(number2, result2Future.get());
std::promise<int> result3;
auto result3Future = result3.get_future();
thread3Ref.invoke(&TestThread::getNumber, std::move(result3));
EXPECT_EQ(number3, result3Future.get());
}
TEST(ThreadLocalStorage, NotSetReturnsNull) {
static ThreadLocal<int> number;
EXPECT_EQ(nullptr, number.get());
}
namespace {
struct DtorCounter {
~DtorCounter() { ++(*value); }
unsigned *value;
};
class TestThreadReclaim {
public:
TestThreadReclaim(mbgl::ActorRef<TestThreadReclaim>, DtorCounter* counter_) {
counter.set(counter_);
}
private:
static ThreadLocal<DtorCounter> counter;
};
ThreadLocal<DtorCounter> TestThreadReclaim::counter;
} // namespace
TEST(ThreadLocalStorage, AutoReclaim) {
RunLoop loop;
unsigned counter = 0;
auto dtorCounter1 = new DtorCounter{ &counter };
auto dtorCounter2 = new DtorCounter{ &counter };
auto thread1 = std::make_unique<Thread<TestThreadReclaim>>("Test", dtorCounter1);
auto thread2 = std::make_unique<Thread<TestThreadReclaim>>("Test", dtorCounter2);
thread1.reset();
thread2.reset();
EXPECT_EQ(counter, 2u);
}
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