CN105573900A - System log configuring and recording method - Google Patents

Abstract

The invention provides a system log configuring and recording method. The method comprises the following steps: creating, opening, formatting and outputting of a format macro definition, wherein Configure is to configure an abstract class, and provide interfaces for start and stop as required, output granularity, file size, data setting and system load parameter setting; a derived class comprises four class objects including registry, file, distributive database and network interface, and acts as an actual information configuration manner; a Manager class is a configuration information management computer, and the four configuration classes of the registry, the file, the distributive database and the network interface exist in the management computer in a class aggregation manner and are flexibly selected and used as required; Run Log is a log core mode, is applied to a log system to be configured into operation, and supports a system load optimization algorithm. The method provides functions of formatting contents, outputting original memory block data, and the like.

Description

A kind of system journal configuration and recording method

Technical field

The present invention relates to a kind of system journal configuration and recording method, be specifically related to a kind of system journal configuration and recording method.

Background technology

The system application run under industrial environment, needs to feed back to user or some information of developer usually, as state value change, parameter change, and the information such as fault cues.Partial feedback information participating user is mutual, such as when user correctly can not be identified by system by input through keyboard one section of invalid data, need also to point out to user feedback in time to re-enter, screen can be adopted to export the mode of (exporting prompting text in current interface).In addition, the feedback informations such as debugging, fault are generally transparent for user, and now for not affect Consumer's Experience, the form usually adopting daily record to export replaces screen and exports, object is that system failure dump file is also the one of daily record in addition in order to locate and investigation problem.

By describing above, the appearance form of information is broadly divided into user awareness and user can not perception two kinds, and the scene such as system application of user awareness possesses a daily record output window.The non scene of user then shows as the various ways such as default hidden window, document form, database, OPC data, distributed data collection.

One, for the original log information of Process Character not face object, output can adopt following form:

1, the system run under order line terminal can use printf function by various information Formatting Output on screen

The call format of printf () function is: printf (" < format string > ", < parameter table >)

2, can use under VirtualC++Debug pattern TRACE grand come output information to Debug window

This is grand only occurs in the DEBUG version of program, and when RELEASE time, this grandly just disappears completely, thus helps you to debug also to reduce size of code when RELEASE.

Use very simple, form is as follows: TRACE (" DDDDDDDDDDD "); TRACE (" wewe%d ", 333); Equally also there is TRACE0, TRACE1, TRACE2.。。Correspondence 0,1,2 respectively.。Individual parameter TRACE information outputs to the output window (this window is that you compile that window of project bomp) of VCIDE environment, but is only limitted to the program that you run your DEBUG version in VC.

TRACE information can also use DEBUGVIEW to capture.In this case, you can not run your program in the IDE environment of VC, and by the program isolated operation of DEBUG version good for BUILD, this time can see outputing of DEBUGVIEw form at the window of DEBUGVIEW.

In VC, the usage of TRACE has following four kinds:

1:TRACE is exactly be not with dynamic parameter output string, the printf (" output string ") of similar C;

Character string in 2:TRACE can be with a parameter to export, the printf (" of similar C ... %d ", variable);

3:TRACE can be with two parameters to export, the printf (" of similar C ... %d...%f ", variable 1, variable 2);

4:TRACE can be with three parameters to export, the printf (" of similar C ... %d, %d, %d ", variable 1, variable 2, variable 3);

Win32API supports to use OutputDebugString to output information to all kinds of debugger

VOIDOutputDebugString(LPCTSTRlpOutputString);

Parameters

lpOutputString

[in]Pointertothenull-terminatedstringtobedisplayed.

ReturnValues

Thisfunctiondoesnotreturnavalue.

4, also can realize data by the mode of adding a record to database is in addition recorded in database, and can use stsndard SQL statement insertinto, concrete syntax can with reference to the relevant documentation of ANSI and ISO.

Two, OO log information, is applicable to the management of batch daily record, is below two kinds of common storehouses of increasing income:

1, log4cpp is the open source projects based on LGPL, transplants the log processing track project log4j from Java, and it is consistent to maintain on API.Its similar Support Library also comprises Java (log4j), C (log4c), python (log4p) etc., and its interface character string parameter type uses std::string, supports ANSI character set.Main support function:

Provide extendible multiple log recording mode;

Provide NDC (Nested Diagnostic Context), can be used for the trace debug of multithreading, many scenes;

Provide complete daily record dynamic priority to control, the daily record priority needing record can be adjusted at any time;

All configurations are completed and dynamic load by configuration file;

Excellent performance, EMS memory occupation is little, and the log4cpp.dll size after compiling only has 160kb;

The platform-neutral of code level, Log4cpp source code, after compiling, is applicable to operating system and the developing instrument of most of main flow;

Clear concept, study and easy to use, skilled programmer can be applied log4cpp well within one day and develop.

2, it is all simpler than the storehouse of log4 series for glog, but it does not support to control daily record behavior with configuration file.Googleglog is a c++ storehouse based on program level log information, and the stream class of operation of programming use-pattern and c++ is seemingly, routine:

LOG(INFO)<<"Found"<<num_cookies<<"cookies";

" LOG " is grand is daily record output key word, and " INFO " is seriousness degree.

Main support function:

Optimum configurations, arranges flags parameters to control log recording behavior in the mode of command line parameter;

Severity rankings, according to daily record severity rankings log;

Can log information conditionally;

Condition stops program.Abundant condition criterion is grand, predeterminable program determination condition;

Abnormal signal process.Program exception situation, can customize exception handling procedure;

Support debug function.Can only for debug pattern;

Self-defined log information;

Thread-safe log recording mode;

System-level log recording;

Googleperror style log information;

Simplify daily record character string information.

Above method determines the content of daily record in the development phase, be formatted into what etc., actual to use, daily record can be triggered by all kinds of condition and whether be recorded.

But in industrial environment, consider the restriction of system resource, memory device, excessively use and will cause unpredictable consequence, be therefore necessary whether use start and stop technology as required to decide current log goes on record.Based on same reason, log system also needs to consider to export Task-size Controlling, log file size, controllable quantity.Relatively weak for processing power some system, now should fully take into account the impact that log system runs whole system, possess load balancing techniques in systems in which.

Summary of the invention

The object of this invention is to provide a kind of system journal configuration and recording method, the function such as formatting component and the output of original memory block data is provided, add the needs to industry spot start and stop as required in addition, simultaneously to the output granularity of daily record, file size, data can control, and inside realizes system load balance by series of algorithms optimization.

The invention provides following technical scheme:

A kind of system journal configuration and recording method, comprising: create, open, format, output format macro definition; Configure is configuration abstract class, provides start and stop as required, exports granularity, file size, data are arranged, and system load parameters arranges interface, the mode that derived class comprises registration table, file, distributed data base, network interface four class objects play actual disposition information; Manager class is configuration information management machine, and registration table, file, distributed data base, network interface four configuration class is present in supervisor in the mode of Type of Collective, as required flexible choice for use; RunLog is daily record core schema, for operating log system should be configured to, and the load optimized algorithm of back-up system simultaneously.

The invention has the beneficial effects as follows: the present invention adopts Target-oriented thought, journal function is encapsulated, relatively and Log4XX, glog open source system, except providing the function such as formatting component and the output of original memory block data, adds the needs to industry spot start and stop as required in addition, simultaneously to the output granularity of daily record, file size, data can control, and inside realizes system load balance by series of algorithms optimization.UNICODE version can be compiled as further in addition, adapt to international demand.

Accompanying drawing explanation

Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:

Fig. 1 is the class figure structure schematic representation of log system of the present invention;

Fig. 2 is a preferred embodiment shortcut schematic diagram;

Fig. 3-12 is configuration, the recording process figure of a preferred embodiment.

Embodiment

As shown in figs. 1-12, be the class graph structure of this log system shown in Fig. 1, wherein Log class realizes basic log recording function, comprises establishment, opens, format, the functions such as output format macro definition.Configure is configuration abstract class, provide start and stop as required, export granularity, file size, data are arranged, system load parameters such as to arrange at the interface, derived class comprises Register(registration table), File(file), DB(distributed data base), Remote(network interface), above four class objects play the mode of actual disposition information.Manager class is configuration information management machine, and above four configuration classes are present in supervisor in the mode of Type of Collective, can flexible choice for use as required.RunLog is daily record core schema, for operating log system should be configured to, and the load optimized algorithm of back-up system simultaneously.

This log system supports virtualc++2008 and above version, can use by the engineering under these environment.For virtualc++2010, double-click " MicrosoftVisualStudio2010 " icon in desktop and enter, as Fig. 2.Click File--New--Project as shown in Figure 3 successively.As Fig. 4 inputs " EMonitor " in new window Name input frame, then click " OK " button.Occur Fig. 5 dialog box, the same Fig. 6 of option--Fig. 9, presses the newly-built engineering of next and Finish button.

As shown in Figure 10, in " solutionexplorer ", right button is clicked, " Add " by engineering name EMonitor place--and " ExistingItem... ", choose " Log.cpp, Log.h, LogManager.cpp; LogManager.h " four files, then click " Add " button.

Need in program to add following code:

In EMonitor.cpp file

#include"LogManager.h"

CLogManagerlogmanager;

BOOLCEMonitorDlg::OnInitDialog()

{

WRITEDEBUG("HelloWorld!");

}

Then perform Build--RebuildSolution, the StartDebugging then clicked in toolbar is to appear after dialog box, can c: generate journal file under catalogue, content is as follows:

2015-06-2917:55:46,329[2704][DEBUG]-e:\git_repository\fireehost\emonitor\emonitor\logmanager.cppline74:HelloWorld!

It is more than basic journal function, can by registration table key-value pair, it controls at any time, click and start--run, input " Regedit ", open REGEDIT, navigate to HKEY_CURRENT_USER EMonitor node, this is the node at journal file controlling functions place, as Figure 12, key assignments and the implication of right side appearance are as follows:

EnableLog(is start and stop as required) 1 permission log recording, 0 stops current log record

MaxLogFileCount(journal file transformation) give tacit consent to 10

The mono-log file size upper limit of MaxLogFileSize(, unit: bytes) give tacit consent to 10485760

GrainSize(daily record granularity) control under final entry herein log category, acquiescence 4, exports any daily record.Granularity has 4 classes, and 4 is most classification, and can use WRITEDEBUG1 in program, WRITEDEBUG2, WRITEDEBUG3, WRITEDEBUG4/WRITEDEBUG specifies the log content of these granularities respectively.

Three key assignments groups provide system load optimizational function entirely below:

CPULoadL(system load Lower percentages value) give tacit consent to 10

CPULoadH(system load number percent higher limit) give tacit consent to 80

OverLoadTime(overload allows duration higher limit, unit: ms) give tacit consent to 1000

LoadCheckInterval(load detecting interval, unit: ms) give tacit consent to 500

Above optimizational function exist in systems in which multiple take cpu resource process and thread automatically enable when working simultaneously, invalid in time only having log system work, in the case normal call log system is exported, does not consider load optimized.After there is load too high (>=CPULoadH), daily record is delayed to export, when load drops to CPULoadL and be following, judge that record total amount determines batch or at the uniform velocity writes, with anti-secondary pollution system resource.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (1)

1. system journal configuration and a recording method, is characterized in that, comprising: create, open, format, output format macro definition; Configure is configuration abstract class, provides start and stop as required, exports granularity, file size, data are arranged, and system load parameters arranges interface, the mode that derived class comprises registration table, file, distributed data base, network interface four class objects play actual disposition information; Manager class is configuration information management machine, and registration table, file, distributed data base, network interface four configuration class is present in supervisor in the mode of Type of Collective, as required flexible choice for use; RunLog is daily record core schema, for operating log system should be configured to, and the load optimized algorithm of back-up system simultaneously.