chromium/components/download/public/common/download_path_reservation_tracker.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_DOWNLOAD_PUBLIC_COMMON_DOWNLOAD_PATH_RESERVATION_TRACKER_H_
#define COMPONENTS_DOWNLOAD_PUBLIC_COMMON_DOWNLOAD_PATH_RESERVATION_TRACKER_H_

#include "base/functional/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "components/download/public/common/download_export.h"

namespace base {
class FilePath;
class SequencedTaskRunner;
}  // namespace base

namespace download {
class DownloadItem;

// Used in UMA, do not remove, change or reuse existing entries.
// Update histograms.xml and enums.xml when adding entries.
enum class PathValidationResult { … };

inline bool IsPathValidationSuccessful(PathValidationResult result) { … }

// Chrome attempts to uniquify filenames that are assigned to downloads in order
// to avoid overwriting files that already exist on the file system. Downloads
// that are considered potentially dangerous use random intermediate filenames.
// Therefore only considering files that exist on the filesystem is
// insufficient. This class tracks files that are assigned to active downloads
// so that uniquification can take those into account as well.
class COMPONENTS_DOWNLOAD_EXPORT DownloadPathReservationTracker { … };

}  // namespace download

#endif  // COMPONENTS_DOWNLOAD_PUBLIC_COMMON_DOWNLOAD_PATH_RESERVATION_TRACKER_H_