| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <audio_utils/SimpleLog.h> |
| #include <map> |
| #include <mutex> |
| #include <sstream> |
| |
| namespace android::mediametrics { |
| |
| class StatsdLog { |
| public: |
| explicit StatsdLog(size_t lines) : mSimpleLog(lines) {} |
| |
| void log(int atom, const std::string& string) { |
| { |
| std::lock_guard lock(mLock); |
| ++mCountMap[atom]; |
| } |
| mSimpleLog.log("%s", string.c_str()); |
| } |
| |
| std::string dumpToString(const char *prefix = "", size_t logLines = 0) const { |
| std::stringstream ss; |
| |
| { // first print out the atom counts |
| std::lock_guard lock(mLock); |
| |
| size_t col = 0; |
| for (const auto& count : mCountMap) { |
| if (col == 8) { |
| col = 0; |
| ss << "\n" << prefix; |
| } else { |
| ss << " "; |
| } |
| ss << "[ " << count.first << " : " << count.second << " ]"; |
| ++col; |
| } |
| ss << "\n"; |
| } |
| |
| // then print out the log lines |
| ss << mSimpleLog.dumpToString(prefix, logLines); |
| return ss.str(); |
| } |
| |
| private: |
| SimpleLog mSimpleLog; // internally locked |
| std::map<int /* atom */, size_t /* count */> mCountMap GUARDED_BY(mLock); // sorted |
| mutable std::mutex mLock; |
| }; |
| |
| } // namespace android::mediametrics |