1 /* 2 ** 3 ** Copyright 2015, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #ifndef ANDROID_SERVICELOG_H 19 #define ANDROID_SERVICELOG_H 20 21 #include <utils/Errors.h> 22 #include <utils/String8.h> 23 #include <utils/threads.h> 24 #include <utils/Vector.h> 25 26 #include "media/RingBuffer.h" 27 28 namespace android { 29 30 class ServiceLog : public RefBase { 31 public: 32 ServiceLog(); 33 explicit ServiceLog(size_t maxNum); 34 35 void add(const String8 &log); 36 String8 toString(const char *linePrefix = NULL) const; 37 38 private: 39 size_t mMaxNum; 40 mutable Mutex mLock; 41 RingBuffer<String8> mLogs; 42 43 void addLine(const char *log, const char *prefix, String8 *result) const; 44 }; 45 46 // ---------------------------------------------------------------------------- 47 48 }; // namespace android 49 50 #endif // ANDROID_SERVICELOG_H 51