58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/*
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* Copyright (C) 2022 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 "nettestutils/DumpService.h"
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#include <android-base/file.h>
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#include <sstream>
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#include <thread>
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android::status_t dumpService(const android::sp<android::IBinder>& binder,
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const std::vector<std::string>& args,
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std::vector<std::string>& outputLines) {
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if (!outputLines.empty()) return -EUCLEAN;
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android::base::unique_fd localFd, remoteFd;
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if (!Pipe(&localFd, &remoteFd)) return -errno;
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android::Vector<android::String16> str16Args;
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for (const auto& arg : args) {
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str16Args.push(android::String16(arg.c_str()));
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}
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android::status_t ret;
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// dump() blocks until another thread has consumed all its output.
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std::thread dumpThread =
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std::thread([&ret, binder, remoteFd{std::move(remoteFd)}, str16Args]() {
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ret = binder->dump(remoteFd, str16Args);
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});
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std::string dumpContent;
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if (!android::base::ReadFdToString(localFd.get(), &dumpContent)) {
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return -errno;
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}
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dumpThread.join();
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if (ret != android::OK) return ret;
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std::stringstream dumpStream(std::move(dumpContent));
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std::string line;
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while (std::getline(dumpStream, line)) {
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outputLines.push_back(line);
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}
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return android::OK;
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}
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