8a53c1a881
The run loop will be kept alive because it has an `AsyncTask`. We also can simple stop the loop with `uv_stop()`. The `RunLoop` is still gonna be the last object to be destroyed because it is the first object to be created in the thread, so by design it won't outlive `Timer`s and `AsyncTask`s. This patch won't change the current behavior, will just make the code simpler.
79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
#include <mbgl/util/timer.hpp>
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#include <mbgl/util/run_loop.hpp>
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#include <uv.h>
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#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
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#define UV_TIMER_PARAMS(timer) uv_timer_t *timer, int
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#else
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#define UV_TIMER_PARAMS(timer) uv_timer_t *timer
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#endif
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namespace mbgl {
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namespace util {
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class Timer::Impl {
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public:
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Impl() : timer(new uv_timer_t) {
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uv_loop_t* loop = reinterpret_cast<uv_loop_t*>(RunLoop::getLoopHandle());
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if (uv_timer_init(loop, timer) != 0) {
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throw std::runtime_error("Failed to initialize timer.");
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}
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handle()->data = this;
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}
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~Impl() {
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uv_close(handle(), [](uv_handle_t* h) {
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delete reinterpret_cast<uv_timer_t*>(h);
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});
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}
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void start(uint64_t timeout, uint64_t repeat, std::function<void ()>&& cb_) {
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cb = std::move(cb_);
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if (uv_timer_start(timer, timerCallback, timeout, repeat) != 0) {
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throw std::runtime_error("Failed to start timer.");
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}
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}
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void stop() {
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cb = nullptr;
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if (uv_timer_stop(timer) != 0) {
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throw std::runtime_error("Failed to stop timer.");
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}
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}
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private:
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static void timerCallback(UV_TIMER_PARAMS(handle)) {
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reinterpret_cast<Impl*>(handle->data)->cb();
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}
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uv_handle_t* handle() {
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return reinterpret_cast<uv_handle_t*>(timer);
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}
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uv_timer_t* timer;
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std::function<void()> cb;
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};
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Timer::Timer()
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: impl(std::make_unique<Impl>()) {
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}
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Timer::~Timer() = default;
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void Timer::start(Duration timeout, Duration repeat, std::function<void()>&& cb) {
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impl->start(std::chrono::duration_cast<Milliseconds>(timeout).count(),
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std::chrono::duration_cast<Milliseconds>(repeat).count(),
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std::move(cb));
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}
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void Timer::stop() {
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impl->stop();
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}
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} // namespace util
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} // namespace mbgl
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