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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_BASE_CDM_SESSION_TRACKER_H_
#define MEDIA_BASE_CDM_SESSION_TRACKER_H_
#include <stdint.h>
#include <string>
#include <unordered_set>
#include "base/macros.h"
#include "media/base/content_decryption_module.h"
#include "media/base/media_export.h"
namespace media {
class MEDIA_EXPORT CdmSessionTracker {
public:
CdmSessionTracker();
CdmSessionTracker(const CdmSessionTracker&) = delete;
CdmSessionTracker& operator=(const CdmSessionTracker&) = delete;
~CdmSessionTracker();
// Adds `session_id` to the list of sessions being tracked.
void AddSession(const std::string& session_id);
// Removes `session_id` from the list of sessions being tracked.
void RemoveSession(const std::string& session_id);
// Calls `session_closed_cb` with `reason` on any remaining sessions in the
// list and then clear the list.
void CloseRemainingSessions(const SessionClosedCB& session_closed_cb,
CdmSessionClosedReason reason);
// Returns whether there are any remaining sessions being tracked.
bool HasRemainingSessions() const;
private:
std::unordered_set<std::string> session_ids_;
};
} // namespace media
#endif // MEDIA_BASE_CDM_SESSION_TRACKER_H_
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