2c3b300fd8
- look for cases where one log line contains two without a newline. - rare condition, occurs when a printk does not have a terminating newline under certain race conditions. - the newline may be performed broken up as a second call - the timestamps can be reversed (showing the race effects). - driver(s) should really have the newline in there log messages. Change-Id: Ibfb56b32047da3d6513db059ca6edad0f0105168
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LOGD_LOG_KLOG_H__
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#define _LOGD_LOG_KLOG_H__
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#include <sysutils/SocketListener.h>
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#include <log/log_read.h>
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#include "LogReader.h"
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char *log_strtok_r(char *str, char **saveptr);
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class LogKlog : public SocketListener {
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LogBuffer *logbuf;
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LogReader *reader;
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const log_time signature;
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const int fdWrite; // /dev/kmsg
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const int fdRead; // /proc/kmsg
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// Set once thread is started, separates KLOG_ACTION_READ_ALL
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// and KLOG_ACTION_READ phases.
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bool initialized;
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// Used during each of the above phases to control logging.
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bool enableLogging;
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// set if we are also running auditd, to filter out audit reports from
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// our copy of the kernel log
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bool auditd;
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static log_time correction;
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public:
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LogKlog(LogBuffer *buf, LogReader *reader, int fdWrite, int fdRead, bool auditd);
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int log(const char *buf);
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void synchronize(const char *buf);
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static void convertMonotonicToReal(log_time &real) { real += correction; }
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protected:
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void sniffTime(log_time &now, const char **buf, bool reverse);
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void calculateCorrection(const log_time &monotonic, const char *real_string);
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virtual bool onDataAvailable(SocketClient *cli);
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};
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#endif
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