chromium/third_party/blink/renderer/modules/peerconnection/webrtc_media_stream_track_adapter_map.h

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_WEBRTC_MEDIA_STREAM_TRACK_ADAPTER_MAP_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_WEBRTC_MEDIA_STREAM_TRACK_ADAPTER_MAP_H_

#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/peerconnection/webrtc_media_stream_track_adapter.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_component.h"
#include "third_party/blink/renderer/platform/peerconnection/two_keys_adapter_map.h"
#include "third_party/blink/renderer/platform/wtf/thread_safe_ref_counted.h"
#include "third_party/webrtc/api/media_stream_interface.h"

namespace base {
class SingleThreadTaskRunner;
}

namespace blink {
class PeerConnectionDependencyFactory;

// A map and owner of |WebRtcMediaStreamTrackAdapter|s. It takes care of
// creating, initializing and disposing track adapters independently of media
// streams. Adapters are accessed via |AdapterRef|s, when all references to an
// adapter are destroyed it is disposed and removed from the map.
// Objects of this class must be constructed on the main thread, after which
// they may be accessed from any thread. The two exceptions to that are
// `GetOrCreateLocalTrackAdapter()` that must be called from the main thread and
// `GetOrCreateRemoteTrackAdapter()` which must not be called from the main
// thread.
class MODULES_EXPORT WebRtcMediaStreamTrackAdapterMap
    : public WTF::ThreadSafeRefCounted<WebRtcMediaStreamTrackAdapterMap> { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_WEBRTC_MEDIA_STREAM_TRACK_ADAPTER_MAP_H_