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#include "run_loop_impl.hpp"
#include <mbgl/util/run_loop.hpp>
#include <mbgl/util/timer.hpp>
#include <atomic>
#include <functional>
namespace mbgl {
namespace util {
class Timer::Impl : public RunLoop::Impl::Runnable {
public:
Impl() : active(false) {
}
~Impl() {
stop();
}
void start(Duration timeout, Duration repeat_, std::function<void()>&& task_) {
stop();
repeat = repeat_;
task = std::move(task_);
// Prevent overflows when timeout is set to Duration::max()
due = (timeout == Duration::max()) ? std::chrono::time_point<Clock>::max() : Clock::now() +
timeout;
loop->addRunnable(this);
active = true;
}
void stop() {
active = false;
loop->removeRunnable(this);
}
void reschedule() {
if (repeat != Duration::zero()) {
due = Clock::now() + repeat;
loop->wake();
} else {
stop();
}
}
TimePoint dueTime() const override {
return due;
}
void runTask() override {
if (active) {
reschedule();
task();
}
}
private:
TimePoint due;
Duration repeat;
RunLoop::Impl* loop = reinterpret_cast<RunLoop::Impl*>(RunLoop::getLoopHandle());
std::function<void()> task;
std::atomic<bool> active;
};
Timer::Timer() : impl(std::make_unique<Impl>()) {
}
Timer::~Timer() = default;
void Timer::start(Duration timeout, Duration repeat, std::function<void()>&& cb) {
impl->start(timeout, repeat, std::move(cb));
}
void Timer::stop() {
impl->stop();
}
} // namespace util
} // namespace mbgl
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