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/*
* Copyright (c) 2011 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 WEBRTC_MODULES_RTP_RTCP_SOURCE_SSRC_DATABASE_H_
#define WEBRTC_MODULES_RTP_RTCP_SOURCE_SSRC_DATABASE_H_
#include <set>
#include "webrtc/base/random.h"
#include "webrtc/base/scoped_ptr.h"
#include "webrtc/system_wrappers/include/static_instance.h"
#include "webrtc/typedefs.h"
namespace webrtc {
class CriticalSectionWrapper;
class SSRCDatabase {
public:
static SSRCDatabase* GetSSRCDatabase();
static void ReturnSSRCDatabase();
uint32_t CreateSSRC();
void RegisterSSRC(uint32_t ssrc);
void ReturnSSRC(uint32_t ssrc);
protected:
SSRCDatabase();
virtual ~SSRCDatabase();
static SSRCDatabase* CreateInstance() { return new SSRCDatabase(); }
private:
// Friend function to allow the SSRC destructor to be accessed from the
// template class.
friend SSRCDatabase* GetStaticInstance<SSRCDatabase>(
CountOperation count_operation);
rtc::scoped_ptr<CriticalSectionWrapper> crit_;
Random random_ GUARDED_BY(crit_);
std::set<uint32_t> ssrcs_ GUARDED_BY(crit_);
};
} // namespace webrtc
#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_SSRC_DATABASE_H_
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