text: /*
   *
   *    Copyright (c) 2020 Project CHIP Authors
   *
   *    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
   *
   *        http://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.
   */
  
  /**
   *    @file
   *          Provides an implementation of the PlatformManager object.
   */
  
  #pragma once
  
  #include <platform/PlatformManager.h>
  #include <platform/internal/GenericPlatformManagerImpl_Zephyr.h>
  
  namespace chip {
  namespace DeviceLayer {
  
  /**
   * Concrete implementation of the PlatformManager singleton object for the nRF Connect SDK platforms.
   */
  class PlatformManagerImpl final : public PlatformManager, public Internal::GenericPlatformManagerImpl_Zephyr<PlatformManagerImpl>
  {
      // Allow the PlatformManager interface class to delegate method calls to
      // the implementation methods provided by this class.
      friend PlatformManager;
  
      // Allow the generic implementation base class to call helper methods on
      // this class.
  #ifndef DOXYGEN_SHOULD_SKIP_THIS
      friend Internal::GenericPlatformManagerImpl_Zephyr<PlatformManagerImpl>;
  #endif
  
  public:
      // ===== Platform-specific members that may be accessed directly by the application.
  
      /* none so far */
  
  private:
      // ===== Methods that implement the PlatformManager abstract interface.
  
      CHIP_ERROR _InitChipStack(void);
  
      // ===== Members for internal use by the following friends.
  
      friend PlatformManager & PlatformMgr(void);
      friend PlatformManagerImpl & PlatformMgrImpl(void);
      friend class Internal::BLEManagerImpl;
  
      explicit PlatformManagerImpl(ThreadStack & stack) : Internal::GenericPlatformManagerImpl_Zephyr<PlatformManagerImpl>(stack) {}
  
      static PlatformManagerImpl sInstance;
  };
  
  /**
   * Returns the public interface of the PlatformManager singleton object.
   *
   * chip applications should use this to access features of the PlatformManager object
   * that are common to all platforms.
   */
  inline PlatformManager & PlatformMgr(void)
  {
      return PlatformManagerImpl::sInstance;
  }
  
  /**
   * Returns the platform-specific implementation of the PlatformManager singleton object.
   *
   * chip applications can use this to gain access to features of the PlatformManager
   * that are specific to the ESP32 platform.
   */
  inline PlatformManagerImpl & PlatformMgrImpl()
  {
      return PlatformManagerImpl::sInstance;
  }
  
  } // namespace DeviceLayer
  } // namespace chip
  