Migrate fast pair from location/nearby/cpp/fastpair to third_party/nearby/fastpair

PiperOrigin-RevId: 495726740

fastpair/internal/api/timer.h

@@ -0,0 +1,53 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef LOCATION_NEARBY_CPP_FASTPAIR_INTERNAL_API_TIMER_H_
+#define LOCATION_NEARBY_CPP_FASTPAIR_INTERNAL_API_TIMER_H_
+
+#include <functional>
+
+namespace location {
+namespace nearby {
+namespace api {
+
+class Timer {
+ public:
+  virtual ~Timer() = default;
+
+  // Creates a timer based on interval.
+  //
+  // @param delay
+  //        The amount of time in milliseconds relative to the current
+  //        time that must elapse before the timer is signaled for the first
+  //        time.
+  // @param interval
+  //        The period of the timer, in milliseconds. If this parameter
+  //        is zero, the timer is signaled once.
+  // @param callback
+  //        It will be called when timer signaled.
+  // @return
+  //        return true if success, otherwise false
+  virtual bool Create(int delay, int interval,
+                      std::function<void()> callback) = 0;
+
+  // Stops timer. No timer signal is sent after the call.
+  virtual bool Stop() = 0;
+  virtual bool FireNow() = 0;
+};
+
+}  // namespace api
+}  // namespace nearby
+}  // namespace location
+
+#endif  // LOCATION_NEARBY_CPP_FASTPAIR_INTERNAL_API_TIMER_H_