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// Copyright 2015 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 CONTENT_COMMON_MAC_IO_SURFACE_MANAGER_H_
#define CONTENT_COMMON_MAC_IO_SURFACE_MANAGER_H_
#include <IOSurface/IOSurface.h>
#include "content/common/content_export.h"
namespace content {
// This interface provides a mechanism for different processes to securely
// share IOSurfaces. A process can register an IOSurface for use in another
// process and the client ID provided with registration determines the process
// that can acquire a reference to the IOSurface.
class CONTENT_EXPORT IOSurfaceManager {
public:
static IOSurfaceManager* GetInstance();
static void SetInstance(IOSurfaceManager* instance);
// Register an IO surface for use in another process.
virtual bool RegisterIOSurface(int io_surface_id,
int client_id,
IOSurfaceRef io_surface) = 0;
// Unregister an IO surface previously registered for use in another
// process.
virtual void UnregisterIOSurface(int io_surface_id, int client_id) = 0;
// Acquire IO surface reference for a registered IO surface.
virtual IOSurfaceRef AcquireIOSurface(int io_surface_id) = 0;
protected:
virtual ~IOSurfaceManager() {}
};
} // namespace content
#endif // CONTENT_COMMON_MAC_IO_SURFACE_MANAGER_H_
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