57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
|
//
|
||
|
|
// Copyright (C) 2023 The Android Open Source Project
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
//
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <memory>
|
||
|
|
#include <string>
|
||
|
|
#include <unordered_map>
|
||
|
|
#include <unordered_set>
|
||
|
|
|
||
|
|
#include <android-base/unique_fd.h>
|
||
|
|
#include <liblp/liblp.h>
|
||
|
|
#include <liblp/super_layout_builder.h>
|
||
|
|
|
||
|
|
#include "util.h"
|
||
|
|
|
||
|
|
class SuperFlashHelper final {
|
||
|
|
public:
|
||
|
|
explicit SuperFlashHelper(const ImageSource& source);
|
||
|
|
|
||
|
|
bool Open(android::base::borrowed_fd fd);
|
||
|
|
bool IncludeInSuper(const std::string& partition);
|
||
|
|
bool AddPartition(const std::string& partition, const std::string& image_name, bool optional);
|
||
|
|
|
||
|
|
// Note: the SparsePtr if non-null should not outlive SuperFlashHelper, since
|
||
|
|
// it depends on open fds and data pointers.
|
||
|
|
SparsePtr GetSparseLayout();
|
||
|
|
|
||
|
|
bool WillFlash(const std::string& partition) const {
|
||
|
|
return will_flash_.find(partition) != will_flash_.end();
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
const ImageSource& source_;
|
||
|
|
android::fs_mgr::SuperLayoutBuilder builder_;
|
||
|
|
std::unique_ptr<android::fs_mgr::LpMetadata> base_metadata_;
|
||
|
|
std::vector<android::fs_mgr::SuperImageExtent> extents_;
|
||
|
|
|
||
|
|
// Cache open image fds. This keeps them alive while we flash the sparse
|
||
|
|
// file.
|
||
|
|
std::unordered_map<std::string, android::base::unique_fd> image_fds_;
|
||
|
|
std::unordered_set<std::string> will_flash_;
|
||
|
|
};
|