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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_CHILD_CHILD_IO_SURFACE_MANAGER_MAC_H_
#define CONTENT_CHILD_CHILD_IO_SURFACE_MANAGER_MAC_H_
#include "base/mac/scoped_mach_port.h"
#include "base/macros.h"
#include "base/memory/singleton.h"
#include "content/common/mac/io_surface_manager.h"
#include "content/common/mac/io_surface_manager_token.h"
namespace content {
// Implementation of IOSurfaceManager that registers and acquires IOSurfaces
// through a Mach service.
class CONTENT_EXPORT ChildIOSurfaceManager : public IOSurfaceManager {
public:
// Returns the global ChildIOSurfaceManager.
static ChildIOSurfaceManager* GetInstance();
// Overridden from IOSurfaceManager:
bool RegisterIOSurface(IOSurfaceId io_surface_id,
int client_id,
IOSurfaceRef io_surface) override;
void UnregisterIOSurface(IOSurfaceId io_surface_id, int client_id) override;
IOSurfaceRef AcquireIOSurface(IOSurfaceId io_surface_id) override;
// Set the service Mach port. Ownership of |service_port| is passed to the
// manager.
// Note: This can be called on any thread but must happen before the
// thread-safe IOSurfaceManager interface is used. It is the responsibility
// of users of this class to ensure there are no races.
void set_service_port(mach_port_t service_port) {
service_port_.reset(service_port);
}
// Set the token used when communicating with the Mach service.
// Note: This can be called on any thread but must happen before the
// thread-safe IOSurfaceManager interface is used. It is the responsibility
// of users of this class to ensure there are no races.
void set_token(const IOSurfaceManagerToken& token) {
token_ = token;
}
private:
friend struct base::DefaultSingletonTraits<ChildIOSurfaceManager>;
ChildIOSurfaceManager();
~ChildIOSurfaceManager() override;
base::mac::ScopedMachSendRight service_port_;
IOSurfaceManagerToken token_;
DISALLOW_COPY_AND_ASSIGN(ChildIOSurfaceManager);
};
} // namespace content
#endif // CONTENT_CHILD_CHILD_IO_SURFACE_MANAGER_MAC_H_
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