1/*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#ifndef FLASHD_IMAGE_WRITER_H
16#define FLASHD_IMAGE_WRITER_H
17
18#include <cstdio>
19#include <memory>
20#include <string>
21#include <unistd.h>
22
23#include "applypatch/data_writer.h"
24#include "macros_updater.h"
25
26namespace Flashd {
27using namespace Updater;
28class FlashdWriter {
29public:
30    virtual ~FlashdWriter() {}
31    virtual int Write(const std::string &partition, const uint8_t *data, size_t len) = 0;
32};
33
34class FlashdWriterRaw : public FlashdWriter {
35public:
36    int Write(const std::string &partition, const uint8_t *data, size_t len) override;
37
38private:
39    bool GetDataWriter(const std::string &partition);
40    std::unique_ptr<DataWriter> writer_ = nullptr;
41};
42
43class FlashdImageWriter {
44    DISALLOW_COPY_MOVE(FlashdImageWriter);
45public:
46    using CheckImageProcess = std::function<bool (const std::string &, const uint8_t *, size_t)>;
47    using GetWriterProcess = std::function<std::unique_ptr<FlashdWriter>()>;
48    struct FlashdWriterGet {
49        CheckImageProcess checkImage {};
50        GetWriterProcess getWriter {};
51    };
52    static FlashdImageWriter &GetInstance();
53    std::unique_ptr<FlashdWriter> GetWriter(const std::string &partition, const uint8_t *data, size_t len) const;
54    void RegisterUserWriter(CheckImageProcess checkImage, GetWriterProcess getWriter);
55
56private:
57    FlashdImageWriter();
58    ~FlashdImageWriter() {}
59    bool IsRawImage(const std::string &partition, const uint8_t *data, size_t len) const;
60    std::unique_ptr<FlashdWriter> GetRawWriter() const;
61    std::vector<FlashdWriterGet> writerGet_ = {};
62};
63} // Flashd
64#endif // FLASHD_IMAGE_WRITER_H
65