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// Copyright (c) 2006-2008 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 CHROME_RENDERER_VISITEDLINK_SLAVE_H_
#define CHROME_RENDERER_VISITEDLINK_SLAVE_H_
#pragma once
#include "base/shared_memory.h"
#include "chrome/common/visitedlink_common.h"
#include "content/renderer/render_process_observer.h"
// Reads the link coloring database provided by the master. There can be any
// number of slaves reading the same database.
class VisitedLinkSlave : public VisitedLinkCommon,
public RenderProcessObserver {
public:
VisitedLinkSlave();
virtual ~VisitedLinkSlave();
// RenderProcessObserver implementation.
virtual bool OnControlMessageReceived(const IPC::Message& message);
// Message handlers.
void OnUpdateVisitedLinks(base::SharedMemoryHandle table);
void OnAddVisitedLinks(const VisitedLinkSlave::Fingerprints& fingerprints);
void OnResetVisitedLinks();
private:
void FreeTable();
// shared memory consists of a SharedHeader followed by the table
base::SharedMemory* shared_memory_;
DISALLOW_COPY_AND_ASSIGN(VisitedLinkSlave);
};
#endif // CHROME_RENDERER_VISITEDLINK_SLAVE_H_