blob: 976afc8af46a3f7a4e5194f15dc4072d778d2f53 [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 <private/android_logger.h>
#include <sysutils/SocketListener.h>
char* log_strntok_r(char* s, size_t* len, char** saveptr, size_t* sublen);
class LogBuffer;
class LogReader;
class LogKlog : public SocketListener {
LogBuffer* logbuf;
LogReader* reader;
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, LogReader* reader, int fdWrite, int fdRead,
bool auditd);
int log(const char* buf, size_t len);
void synchronize(const char* buf, size_t len);
bool isMonotonic() {
return logbuf->isMonotonic();
}
static void convertMonotonicToReal(log_time& real) {
real += correction;
}
static void convertRealToMonotonic(log_time& real) {
real -= correction;
}
protected:
void sniffTime(log_time& now, const char** buf, size_t len, bool reverse);
pid_t sniffPid(const char** buf, size_t len);
void calculateCorrection(const log_time& monotonic, const char* real_string,
size_t len);
virtual bool onDataAvailable(SocketClient* cli);
};
#endif