283c9a1c00
In the future, we'll want to be able to write to outputs that are not necessarily a libsysutils SocketClient, for example host tests of LogBuffer. Therefore, we add a LogWriter class to be used instead of SocketClient. Test: logging unit tests Change-Id: I4385be65e14e83a635691a7ba79e9bf060e49484
53 lines
1.7 KiB
C++
53 lines
1.7 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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#pragma once
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#include <private/android_logger.h>
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#include <sysutils/SocketListener.h>
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#include "LogBuffer.h"
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#include "LogStatistics.h"
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class LogKlog : public SocketListener {
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LogBuffer* logbuf;
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const log_time signature;
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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, int fdWrite, int fdRead, bool auditd, LogStatistics* stats);
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int log(const char* buf, ssize_t len);
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static void convertMonotonicToReal(log_time& real) { real += correction; }
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protected:
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log_time sniffTime(const char*& buf, ssize_t len, bool reverse);
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pid_t sniffPid(const char*& buf, ssize_t len);
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void calculateCorrection(const log_time& monotonic, const char* real_string, ssize_t len);
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virtual bool onDataAvailable(SocketClient* cli);
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private:
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LogStatistics* stats_;
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};
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