android_system_core/logd/LogKlog.h
Tom Cherry f2c2746aba Remove the monotonic option for logging
This has been around for ~5 years but there has been roughly no
adoption, so remove this as we clean up the logging code.

Future efforts may track the monotonic timestamp in all cases.

Test: logging unit tests
Change-Id: I55ed565669f923988e741f6b384141bba893630d
2020-05-06 13:37:33 -07:00

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1.8 KiB
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/*
* 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>
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, 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);
};
#endif