Timer.h

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/*
 * Copyright (c) 2018-2019 pongasoft
 *
 * Licensed under the Apache License, Version 2.0 or the MIT license,
 * at your option. You may not use this file except in compliance with
 * one of these licenses. You may obtain copies of the licenses at:
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 * https://opensource.org/licenses/MIT
 *
 * 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.
 *
 * @author Yan Pujante
 */
 
#pragma once
 
#include <base/source/timer.h>
#include <memory>
 
namespace pongasoft::VST {

class AutoReleaseTimer
{
public:
  // Constructor
  explicit AutoReleaseTimer(Steinberg::Timer *iTimer) : fTimer{iTimer} {}
 
  // Destructor => auto release
  ~AutoReleaseTimer()
  {
    stop();
 
    if(fTimer)
      fTimer->release();
  }
 
  // stops the timer
  inline void stop()
  {
    if(fTimer)
      fTimer->stop();
  }

  static std::unique_ptr<AutoReleaseTimer> create(Steinberg::ITimerCallback* iCallback,
                                                  Steinberg::uint32 iIntervalMilliseconds)
  {
    return std::make_unique<AutoReleaseTimer>(Steinberg::Timer::create(iCallback, iIntervalMilliseconds));
  }
 
  // disabling copy
  AutoReleaseTimer(AutoReleaseTimer const &) = delete;
  AutoReleaseTimer& operator=(AutoReleaseTimer const &) = delete;
 
private:
  Steinberg::Timer *fTimer;
};
 
}