blob: 8de9c87ea34569dc5b99193aad3f700a91b7d8b5 [file] [log] [blame]
/*
* 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.
*/
#ifndef _LOGD_LOG_KLOG_H__
#define _LOGD_LOG_KLOG_H__
#include <sysutils/SocketListener.h>
#include <log/log_read.h>
#include "LogReader.h"
class LogKlog : public SocketListener {
LogBuffer *logbuf;
LogReader *reader;
const log_time signature;
const int fdWrite; // /dev/kmsg
const int fdRead; // /proc/kmsg
// 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, LogReader *reader, int fdWrite, int fdRead, bool auditd);
int log(const char *buf);
void synchronize(const char *buf);
static void convertMonotonicToReal(log_time &real) { real += correction; }
protected:
void sniffTime(log_time &now, const char **buf, bool reverse);
void calculateCorrection(const log_time &monotonic, const char *real_string);
virtual bool onDataAvailable(SocketClient *cli);
};
#endif