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// Copyright (c) 2011 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 COMPONENTS_VISITEDLINK_RENDERER_VISITEDLINK_READER_H_
#define COMPONENTS_VISITEDLINK_RENDERER_VISITEDLINK_READER_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/read_only_shared_memory_region.h"
#include "base/memory/shared_memory_mapping.h"
#include "base/memory/weak_ptr.h"
#include "components/visitedlink/common/visitedlink.mojom.h"
#include "components/visitedlink/common/visitedlink_common.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
namespace visitedlink {
// Reads the link coloring database provided by the writer. There can be any
// number of readers reading the same database.
class VisitedLinkReader : public VisitedLinkCommon,
public mojom::VisitedLinkNotificationSink {
public:
VisitedLinkReader();
~VisitedLinkReader() override;
base::RepeatingCallback<
void(mojo::PendingReceiver<mojom::VisitedLinkNotificationSink>)>
GetBindCallback();
// mojom::VisitedLinkNotificationSink overrides.
void UpdateVisitedLinks(
base::ReadOnlySharedMemoryRegion table_region) override;
void AddVisitedLinks(
const std::vector<VisitedLinkReader::Fingerprint>& fingerprints) override;
void ResetVisitedLinks(bool invalidate_hashes) override;
private:
void FreeTable();
void Bind(mojo::PendingReceiver<mojom::VisitedLinkNotificationSink> receiver);
base::ReadOnlySharedMemoryMapping table_mapping_;
mojo::Receiver<mojom::VisitedLinkNotificationSink> receiver_{this};
base::WeakPtrFactory<VisitedLinkReader> weak_factory_{this};
DISALLOW_COPY_AND_ASSIGN(VisitedLinkReader);
};
} // namespace visitedlink
#endif // COMPONENTS_VISITEDLINK_RENDERER_VISITEDLINK_READER_H_
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