1 /* 2 * Copyright (C) 2012-2013 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 17 #ifndef _LOGD_LOG_LISTENER_H__ 18 #define _LOGD_LOG_LISTENER_H__ 19 20 #include <sysutils/SocketListener.h> 21 #include "LogReader.h" 22 23 // DEFAULT_OVERFLOWUID is defined in linux/highuid.h, which is not part of 24 // the uapi headers for userspace to use. This value is filled in on the 25 // out-of-band socket credentials if the OS fails to find one available. 26 // One of the causes of this is if SO_PASSCRED is set, all the packets before 27 // that point will have this value. We also use it in a fake credential if 28 // no socket credentials are supplied. 29 #ifndef DEFAULT_OVERFLOWUID 30 #define DEFAULT_OVERFLOWUID 65534 31 #endif 32 33 class LogListener : public SocketListener { 34 LogBufferInterface* logbuf; 35 LogReader* reader; 36 37 public: 38 LogListener(LogBufferInterface* buf, LogReader* reader /* nullable */); 39 40 protected: 41 virtual bool onDataAvailable(SocketClient* cli); 42 43 private: 44 static int getLogSocket(); 45 }; 46 47 #endif 48