8108e2513f
This extracts the implementation of boot_control into a new library, libboot_control. The bootctrl.default module now wraps this library. This refactoring will allow us to re-use the same implementation in HIDL. Bug: 138861550 Test: mm bootctrl.default Change-Id: Ic0558da3c2d8e6f5ebec63a497825c24b51623b7
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
//
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// Copyright (C) 2019 The Android Open Source Project
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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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// http://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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//
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#pragma once
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#include <string>
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namespace android {
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namespace bootable {
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// Helper library to implement the IBootControl HAL using the misc partition.
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class BootControl {
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public:
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bool Init();
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unsigned int GetNumberSlots();
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unsigned int GetCurrentSlot();
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bool MarkBootSuccessful();
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bool SetActiveBootSlot(unsigned int slot);
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bool SetSlotAsUnbootable(unsigned int slot);
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bool SetSlotBootable(unsigned int slot);
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bool IsSlotBootable(unsigned int slot);
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const char* GetSuffix(unsigned int slot);
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bool IsSlotMarkedSuccessful(unsigned int slot);
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const std::string& misc_device() const {
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return misc_device_;
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}
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private:
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// Whether this object was initialized with data from the bootloader message
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// that doesn't change until next reboot.
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bool initialized_ = false;
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// The path to the misc_device as reported in the fstab.
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std::string misc_device_;
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// The number of slots present on the device.
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unsigned int num_slots_ = 0;
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// The slot where we are running from.
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unsigned int current_slot_ = 0;
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};
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} // namespace bootable
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} // namespace android
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