1 // 2 // Copyright (C) 2020 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 16 #pragma once 17 18 #include <string> 19 #include <vector> 20 21 #include <android-base/logging.h> 22 23 #include "common/libs/fs/shared_fd.h" 24 25 namespace cuttlefish { 26 27 std::string StderrOutputGenerator(const struct tm& now, int pid, uint64_t tid, 28 android::base::LogSeverity severity, 29 const char* tag, const char* file, 30 unsigned int line, const char* message); 31 32 android::base::LogSeverity ConsoleSeverity(); 33 android::base::LogSeverity LogFileSeverity(); 34 35 enum class MetadataLevel { 36 FULL, 37 ONLY_MESSAGE, 38 TAG_AND_MESSAGE 39 }; 40 41 struct SeverityTarget { 42 android::base::LogSeverity severity; 43 SharedFD target; 44 MetadataLevel metadata_level; 45 }; 46 47 class TeeLogger { 48 private: 49 std::vector<SeverityTarget> destinations_; 50 public: 51 TeeLogger(const std::vector<SeverityTarget>& destinations, 52 const std::string& log_prefix = ""); 53 ~TeeLogger() = default; 54 55 void operator()(android::base::LogId log_id, 56 android::base::LogSeverity severity, const char* tag, 57 const char* file, unsigned int line, const char* message); 58 59 private: 60 std::string prefix_; 61 }; 62 63 TeeLogger LogToFiles(const std::vector<std::string>& files, 64 const std::string& log_prefix = ""); 65 TeeLogger LogToStderrAndFiles(const std::vector<std::string>& files, 66 const std::string& log_prefix = "", 67 MetadataLevel stderr_level = MetadataLevel::ONLY_MESSAGE); 68 69 } // namespace cuttlefish 70