111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
//
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// Copyright (C) 2021 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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#include <memory>
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#include <utility>
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#include <base/files/file_util.h>
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#include <ApexProperties.sysprop.h>
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#include "update_engine/aosp/apex_handler_android.h"
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#include "update_engine/common/utils.h"
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namespace chromeos_update_engine {
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namespace {
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android::apex::CompressedApexInfoList CreateCompressedApexInfoList(
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const std::vector<ApexInfo>& apex_infos) {
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android::apex::CompressedApexInfoList compressed_apex_info_list;
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for (const auto& apex_info : apex_infos) {
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if (!apex_info.is_compressed()) {
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continue;
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}
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android::apex::CompressedApexInfo compressed_apex_info;
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compressed_apex_info.moduleName = apex_info.package_name();
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compressed_apex_info.versionCode = apex_info.version();
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compressed_apex_info.decompressedSize = apex_info.decompressed_size();
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compressed_apex_info_list.apexInfos.emplace_back(
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std::move(compressed_apex_info));
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}
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return compressed_apex_info_list;
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}
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} // namespace
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std::unique_ptr<ApexHandlerInterface> CreateApexHandler() {
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if (android::sysprop::ApexProperties::updatable().value_or(false)) {
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return std::make_unique<ApexHandlerAndroid>();
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} else {
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return std::make_unique<FlattenedApexHandlerAndroid>();
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}
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}
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android::base::Result<uint64_t> ApexHandlerAndroid::CalculateSize(
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const std::vector<ApexInfo>& apex_infos) const {
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// We might not need to decompress every APEX. Communicate with apexd to get
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// accurate requirement.
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auto apex_service = GetApexService();
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if (apex_service == nullptr) {
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return android::base::Error() << "Failed to get hold of apexservice";
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}
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auto compressed_apex_info_list = CreateCompressedApexInfoList(apex_infos);
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int64_t size_from_apexd;
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auto result = apex_service->calculateSizeForCompressedApex(
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compressed_apex_info_list, &size_from_apexd);
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if (!result.isOk()) {
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return android::base::Error()
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<< "Failed to get size required from apexservice";
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}
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return size_from_apexd;
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}
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bool ApexHandlerAndroid::AllocateSpace(
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const std::vector<ApexInfo>& apex_infos) const {
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auto apex_service = GetApexService();
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if (apex_service == nullptr) {
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return false;
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}
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auto compressed_apex_info_list = CreateCompressedApexInfoList(apex_infos);
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auto result =
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apex_service->reserveSpaceForCompressedApex(compressed_apex_info_list);
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return result.isOk();
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}
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android::sp<android::apex::IApexService> ApexHandlerAndroid::GetApexService()
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const {
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auto binder = android::defaultServiceManager()->waitForService(
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android::String16("apexservice"));
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if (binder == nullptr) {
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return nullptr;
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}
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return android::interface_cast<android::apex::IApexService>(binder);
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}
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android::base::Result<uint64_t> FlattenedApexHandlerAndroid::CalculateSize(
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const std::vector<ApexInfo>& apex_infos) const {
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return 0;
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}
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bool FlattenedApexHandlerAndroid::AllocateSpace(
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const std::vector<ApexInfo>& apex_infos) const {
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return true;
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}
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} // namespace chromeos_update_engine
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