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