1 /* 2 * Copyright (C) 2018 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 <sysutils/SocketListener.h> 19 #include <utils/RefBase.h> 20 #include "logd/LogEventQueue.h" 21 22 // DEFAULT_OVERFLOWUID is defined in linux/highuid.h, which is not part of 23 // the uapi headers for userspace to use. This value is filled in on the 24 // out-of-band socket credentials if the OS fails to find one available. 25 // One of the causes of this is if SO_PASSCRED is set, all the packets before 26 // that point will have this value. We also use it in a fake credential if 27 // no socket credentials are supplied. 28 #ifndef DEFAULT_OVERFLOWUID 29 #define DEFAULT_OVERFLOWUID 65534 30 #endif 31 32 namespace android { 33 namespace os { 34 namespace statsd { 35 36 class StatsSocketListener : public SocketListener, public virtual android::RefBase { 37 public: 38 explicit StatsSocketListener(std::shared_ptr<LogEventQueue> queue); 39 40 virtual ~StatsSocketListener(); 41 42 protected: 43 virtual bool onDataAvailable(SocketClient* cli); 44 45 private: 46 static int getLogSocket(); 47 /** 48 * Who is going to get the events when they're read. 49 */ 50 std::shared_ptr<LogEventQueue> mQueue; 51 }; 52 } // namespace statsd 53 } // namespace os 54 } // namespace android 55