/*
 *  Copyright 2020 The WebRTC Project Authors. All rights reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#ifndef RTC_BASE_NETWORK_MONITOR_FACTORY_H_
#define RTC_BASE_NETWORK_MONITOR_FACTORY_H_

namespace rtc {

// Forward declaring this so it's not part of the API surface; it's only
// expected to be used by Android/iOS SDK code.
class NetworkMonitorInterface;

/*
 * NetworkMonitorFactory creates NetworkMonitors.
 * Note that CreateNetworkMonitor is expected to be called on the network
 * thread with the returned object only being used on that thread thereafter.
 */
class NetworkMonitorFactory {
 public:
  // This is not thread-safe; it should be called once (or once per audio/video
  // call) during the call initialization.
  // DEPRECATED: Should pass NetworkMonitorFactory through
  // PeerConnectionFactoryDependencies instead.
  static void SetFactory(NetworkMonitorFactory* factory);

  static void ReleaseFactory(NetworkMonitorFactory* factory);
  static NetworkMonitorFactory* GetFactory();

  virtual NetworkMonitorInterface* CreateNetworkMonitor() = 0;

  virtual ~NetworkMonitorFactory();

 protected:
  NetworkMonitorFactory();
};

}  // namespace rtc

#endif  // RTC_BASE_NETWORK_MONITOR_FACTORY_H_