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https://github.com/kidfromjupiter/nearby.git
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71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef THIRD_PARTY_NEARBY_SHARING_NEARBY_FILE_HANDLER_H_
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#define THIRD_PARTY_NEARBY_SHARING_NEARBY_FILE_HANDLER_H_
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#include <stdint.h>
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#include <functional>
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#include <memory>
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#include <vector>
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#include "absl/functional/any_invocable.h"
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#include "internal/base/file_path.h"
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#include "internal/platform/task_runner.h"
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#include "sharing/internal/api/sharing_platform.h"
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namespace nearby {
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namespace sharing {
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// This class manages async File IO for Nearby Share file payloads. Opening and
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// releasing files need to run on a MayBlock task runner.
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class NearbyFileHandler {
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public:
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struct FileInfo {
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uint64_t size;
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FilePath file_path;
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};
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using OpenFilesCallback = std::function<void(std::vector<FileInfo>)>;
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using DeleteFilesFromDiskCallback = std::function<void()>;
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// Pass in a TaskRunner to use for testing.
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explicit NearbyFileHandler(nearby::sharing::api::SharingPlatform& platform,
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std::unique_ptr<TaskRunner> runner = nullptr);
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~NearbyFileHandler();
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// Open the files given in |file_paths| and return the opened files sizes via
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// |callback|. If any file fails to open, return an empty list.
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void OpenFiles(std::vector<FilePath> file_paths, OpenFilesCallback callback);
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void DeleteFilesFromDisk(std::vector<FilePath> file_paths,
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DeleteFilesFromDiskCallback callback);
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// On platforms where it is supported, tag the transferred files as
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// originating from an untrusted source.
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void UpdateFilesOriginMetadata(
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std::vector<FilePath> file_paths,
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absl::AnyInvocable<void(bool success)> callback);
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private:
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nearby::sharing::api::SharingPlatform& platform_;
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std::unique_ptr<TaskRunner> sequenced_task_runner_;
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};
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} // namespace sharing
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_SHARING_NEARBY_FILE_HANDLER_H_
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