chromium/third_party/webrtc/modules/desktop_capture/shared_memory.h

/*
 *  Copyright (c) 2013 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 MODULES_DESKTOP_CAPTURE_SHARED_MEMORY_H_
#define MODULES_DESKTOP_CAPTURE_SHARED_MEMORY_H_

#include <stddef.h>

#if defined(WEBRTC_WIN)
// Forward declare HANDLE in a windows.h compatible way so that we can avoid
// including windows.h.
typedef void* HANDLE;
#endif

#include <memory>

#include "rtc_base/system/rtc_export.h"

namespace webrtc {

// SharedMemory is a base class for shared memory. It stores all required
// parameters of the buffer, but doesn't have any logic to allocate or destroy
// the actual buffer. DesktopCapturer consumers that need to use shared memory
// for video frames must extend this class with creation and destruction logic
// specific for the target platform and then call
// DesktopCapturer::SetSharedMemoryFactory().
class RTC_EXPORT SharedMemory { … };

// Interface used to create SharedMemory instances.
class SharedMemoryFactory { … };

}  // namespace webrtc

#endif  // MODULES_DESKTOP_CAPTURE_SHARED_MEMORY_H_