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nearby/fastpair/internal/api/timer.h
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2023-01-06 02:53:57 -08:00

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// 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 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
#endif // LOCATION_NEARBY_CPP_FASTPAIR_INTERNAL_API_TIMER_H_