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79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_VIDEO_ENGINE_VIE_MANAGER_BASE_H_
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#define WEBRTC_VIDEO_ENGINE_VIE_MANAGER_BASE_H_
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#include "webrtc/base/thread_annotations.h"
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namespace webrtc {
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class RWLockWrapper;
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class LOCKABLE ViEManagerBase {
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friend class ViEManagedItemScopedBase;
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friend class ViEManagerScopedBase;
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friend class ViEManagerWriteScoped;
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public:
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ViEManagerBase();
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~ViEManagerBase();
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private:
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// Exclusive lock, used by ViEManagerWriteScoped.
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void WriteLockManager() EXCLUSIVE_LOCK_FUNCTION();
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// Releases exclusive lock, used by ViEManagerWriteScoped.
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void ReleaseWriteLockManager() UNLOCK_FUNCTION();
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// Increases lock count, used by ViEManagerScopedBase.
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void ReadLockManager() const SHARED_LOCK_FUNCTION();
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// Releases the lock count, used by ViEManagerScopedBase.
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void ReleaseLockManager() const UNLOCK_FUNCTION();
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RWLockWrapper& instance_rwlock_;
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};
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class SCOPED_LOCKABLE ViEManagerWriteScoped {
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public:
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explicit ViEManagerWriteScoped(ViEManagerBase* vie_manager)
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EXCLUSIVE_LOCK_FUNCTION(vie_manager);
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~ViEManagerWriteScoped() UNLOCK_FUNCTION();
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private:
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ViEManagerBase* vie_manager_;
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};
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class ViEManagerScopedBase {
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friend class ViEManagedItemScopedBase;
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public:
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explicit ViEManagerScopedBase(const ViEManagerBase& vie_manager);
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~ViEManagerScopedBase();
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protected:
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const ViEManagerBase* vie_manager_;
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private:
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int ref_count_;
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};
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class ViEManagedItemScopedBase {
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public:
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explicit ViEManagedItemScopedBase(ViEManagerScopedBase* vie_scoped_manager);
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~ViEManagedItemScopedBase();
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protected:
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ViEManagerScopedBase* vie_scoped_manager_;
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};
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} // namespace webrtc
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#endif // WEBRTC_VIDEO_ENGINE_VIE_MANAGER_BASE_H_
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