| /* |
| * Copyright (C) 2014 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 <private/android_logger.h> |
| #include <sysutils/SocketListener.h> |
| |
| #include "LogBuffer.h" |
| #include "LogStatistics.h" |
| |
| class LogKlog : public SocketListener { |
| LogBuffer* logbuf; |
| const log_time signature; |
| // Set once thread is started, separates KLOG_ACTION_READ_ALL |
| // and KLOG_ACTION_READ phases. |
| bool initialized; |
| // Used during each of the above phases to control logging. |
| bool enableLogging; |
| // set if we are also running auditd, to filter out audit reports from |
| // our copy of the kernel log |
| bool auditd; |
| |
| static log_time correction; |
| |
| public: |
| LogKlog(LogBuffer* buf, int fdWrite, int fdRead, bool auditd, LogStatistics* stats); |
| int log(const char* buf, ssize_t len); |
| |
| static void convertMonotonicToReal(log_time& real) { real += correction; } |
| |
| protected: |
| log_time sniffTime(const char*& buf, ssize_t len, bool reverse); |
| pid_t sniffPid(const char*& buf, ssize_t len); |
| void calculateCorrection(const log_time& monotonic, const char* real_string, ssize_t len); |
| virtual bool onDataAvailable(SocketClient* cli); |
| |
| private: |
| LogStatistics* stats_; |
| }; |