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/*
* Copyright (c) 2012 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_VIDEO_ENGINE_VIE_MANAGER_BASE_H_
#define WEBRTC_VIDEO_ENGINE_VIE_MANAGER_BASE_H_
namespace webrtc {
class RWLockWrapper;
class ViEManagerBase {
friend class ViEManagedItemScopedBase;
friend class ViEManagerScopedBase;
friend class ViEManagerWriteScoped;
public:
ViEManagerBase();
~ViEManagerBase();
private:
// Exclusive lock, used by ViEManagerWriteScoped.
void WriteLockManager();
// Releases exclusive lock, used by ViEManagerWriteScoped.
void ReleaseWriteLockManager();
// Increases lock count, used by ViEManagerScopedBase.
void ReadLockManager() const;
// Releases the lock count, used by ViEManagerScopedBase.
void ReleaseLockManager() const;
RWLockWrapper& instance_rwlock_;
};
class ViEManagerWriteScoped {
public:
explicit ViEManagerWriteScoped(ViEManagerBase* vie_manager);
~ViEManagerWriteScoped();
private:
ViEManagerBase* vie_manager_;
};
class ViEManagerScopedBase {
friend class ViEManagedItemScopedBase;
public:
explicit ViEManagerScopedBase(const ViEManagerBase& vie_manager);
~ViEManagerScopedBase();
protected:
const ViEManagerBase* vie_manager_;
private:
int ref_count_;
};
class ViEManagedItemScopedBase {
public:
explicit ViEManagedItemScopedBase(ViEManagerScopedBase* vie_scoped_manager);
~ViEManagedItemScopedBase();
protected:
ViEManagerScopedBase* vie_scoped_manager_;
};
} // namespace webrtc
#endif // WEBRTC_VIDEO_ENGINE_VIE_MANAGER_BASE_H_
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