Fixed tests

c_api/include/taichi/cpp/taichi.hpp

@@ -685,6 +685,60 @@ class AotModule {
   }
 };
 
+class Event {
+  TiRuntime runtime_{TI_NULL_HANDLE};
+  TiEvent event_{TI_NULL_HANDLE};
+  bool should_destroy_{false};
+
+ public:
+  constexpr bool is_valid() const {
+    return event_ != nullptr;
+  }
+  inline void destroy() {
+    if (should_destroy_) {
+      ti_destroy_event(event_);
+      event_ = TI_NULL_HANDLE;
+      should_destroy_ = false;
+    }
+  }
+
+  Event() {
+  }
+  Event(const Event &) = delete;
+  Event(Event &&b) : event_(b.event_), should_destroy_(b.should_destroy_) {
+  }
+  Event(TiRuntime runtime, TiEvent event, bool should_destroy)
+      : runtime_(runtime), event_(event), should_destroy_(should_destroy) {
+  }
+  ~Event() {
+    destroy();
+  }
+
+  Event &operator=(const Event &) = delete;
+  Event &operator=(Event &&b) {
+    event_ = detail::move_handle(b.event_);
+    should_destroy_ = std::exchange(b.should_destroy_, false);
+    return *this;
+  }
+
+  void reset(TiEvent event_) {
+    ti_reset_event(runtime_, event_);
+  }
+  void signal(TiEvent event_) {
+    ti_signal_event(runtime_, event_);
+  }
+  void wait(TiEvent event_) {
+    ti_wait_event(runtime_, event_);
+  }
+
+  constexpr TiEvent event() const {
+    return event_;
+  }
+  constexpr operator TiEvent() const {
+    return event_;
+  }
+};
+
 class CapabilityLevelConfigBuilder;
 class CapabilityLevelConfig {
  public: