Re: [Log4c-devel] [RFC]A question about LOG4C_PRIORITY_TRACE
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Re: [Log4c-devel] [RFC]A question about LOG4C_PRIORITY_TRACE
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From: harryxiyou <har...@gm...> - 2011-10-21 16:49:35
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On Thu, Oct 13, 2011 at 10:11 PM, harryxiyou <har...@gm...> wrote:
> Hi all,
> When i used log4c library, i just happened to the following questions.
> After i compiled helloworld.c(see the details in the following) successfully,
> i ran it. It only produced two files, log.0 and log.wf.0. The contents of them
> are:
> $ cat log.0
> 20111013 13:49:55.652 NOTICE hlfslog- [helloworld.c][main][11]Hello Wrold
> 20111013 13:49:55.652 INFO hlfslog- [helloworld.c][main][14]3333
> 20111013 13:49:55.652 NOTICE hlfslog- [helloworld.c][main][17]9
>
> $ cat log.wf.0
> 20111013 13:49:55.652 FATAL hlfslogwf- [helloworld.c][main][15]7
>
> I think we should see not only INFO and NOTICE, FATAL messages.
> but also TRACE,INFO messages in log.0 file and ERROR, WARN messages
> in the log.wf.0 file. IOW, they should like this:
>
> $ cat log.0
> 20111013 13:49:55.652 NOTICE hlfslog- [helloworld.c][main][11]Hello Wrold
> 20111013 13:49:55.652 INFO hlfslog- [helloworld.c][main][14]3333
> 20111013 13:49:55.652 TRACE hlfslog- [helloworld.c][main][16]8
> 20111013 13:49:55.652 NOTICE hlfslog- [helloworld.c][main][17]9
>
> $ cat log.wf.0
> 20111013 13:49:55.652 ERROR hlfslogwf- [helloworld.c][main][12]111
> 20111013 13:49:55.652 WARN hlfslogwf- [helloworld.c][main][13]222
> 20111013 13:49:55.652 FATAL hlfslogwf- [helloworld.c][main][15]7
>
> Some comments??
>
> Thanks in advance.
> Harry Wei
>
>
>
> hlfs_log.h
> ----------------
> #ifndef _HLFS_LOG_H
> #define _HLFS_LOG_H
>
> #include "log4c.h"
> #include <stdio.h>
> #include <string.h>
> #include <stdlib.h>
>
> #define LOG_LEN (1024)
>
> static char __msg_log[LOG_LEN];
> static log4c_category_t *__mycat_debug = NULL;
> static log4c_category_t *__mycat_info = NULL;
> static log4c_category_t *__mycat_error = NULL;
> static log4c_category_t *__mycat_warn = NULL;
> static log4c_category_t *__mycat_fatal = NULL;
> static log4c_category_t *__mycat_trace = NULL;
> static log4c_category_t *__mycat_notice = NULL;
>
> #define HLOG_NOTICE(msg, args...) { \
> if (NULL == __mycat_notice) { \
> __mycat_notice = log4c_category_get("hlfslog"); \
> } \
> memset(__msg_log, 0, LOG_LEN); \
> snprintf(__msg_log, LOG_LEN, "[%s][%s][%d]%s", __FILE__, __func__,
> __LINE__, msg); \
> const log4c_location_info_t locinfo =
> LOG4C_LOCATION_INFO_INITIALIZER(NULL); \
> log4c_category_log_locinfo(__mycat_notice, &locinfo,
> LOG4C_PRIORITY_NOTICE, __msg_log, ##args); \
> }
>
> #define HLOG_TRACE(msg, args...) { \
> if (NULL == __mycat_trace) { \
> __mycat_trace = log4c_category_get("hlfslog"); \
> } \
> memset(__msg_log, 0, LOG_LEN); \
> snprintf(__msg_log, LOG_LEN, "[%s][%s][%d]%s", __FILE__, __func__,
> __LINE__, msg); \
> const log4c_location_info_t locinfo =
> LOG4C_LOCATION_INFO_INITIALIZER(NULL); \
> log4c_category_log_locinfo(__mycat_trace, &locinfo,
> LOG4C_PRIORITY_TRACE, __msg_log, ##args); \
> }
>
> #define HLOG_FATAL(msg, args...) { \
> if (NULL == __mycat_fatal) { \
> __mycat_fatal = log4c_category_get("hlfslogwf"); \
> } \
> memset(__msg_log, 0, LOG_LEN); \
> snprintf(__msg_log, LOG_LEN, "[%s][%s][%d]%s", __FILE__, __func__,
> __LINE__, msg); \
> const log4c_location_info_t locinfo =
> LOG4C_LOCATION_INFO_INITIALIZER(NULL); \
> log4c_category_log_locinfo(__mycat_fatal, &locinfo,
> LOG4C_PRIORITY_FATAL, __msg_log, ##args); \
> }
>
> #define HLOG_DEBUG(msg, args...) { \
> if (NULL == __mycat_debug) { \
> __mycat_debug = log4c_category_get("hlfslog"); \
> } \
> memset(__msg_log, 0, LOG_LEN); \
> snprintf(__msg_log, LOG_LEN, "[%s][%s][%d]%s", __FILE__, __func__,
> __LINE__, msg); \
> const log4c_location_info_t locinfo =
> LOG4C_LOCATION_INFO_INITIALIZER(NULL); \
> log4c_category_log_locinfo(__mycat_debug, &locinfo,
> LOG4C_PRIORITY_DEBUG, __msg_log, ##args); \
> }
>
> #define HLOG_INFO(msg, args...) { \
> if (NULL == __mycat_info) { \
> __mycat_info = log4c_category_get("hlfslog"); \
> } \
> memset(__msg_log, 0, LOG_LEN); \
> snprintf(__msg_log, LOG_LEN, "[%s][%s][%d]%s", __FILE__, __func__,
> __LINE__, msg); \
> const log4c_location_info_t locinfo =
> LOG4C_LOCATION_INFO_INITIALIZER(NULL); \
> log4c_category_log_locinfo(__mycat_info, &locinfo,
> LOG4C_PRIORITY_INFO, __msg_log, ##args); \
> }
>
> #define HLOG_ERROR(msg, args...) { \
> if (NULL == __mycat_error) { \
> __mycat_error = log4c_category_get("hlfslogwf"); \
> } \
> memset(__msg_log, 0, LOG_LEN); \
> snprintf(__msg_log, LOG_LEN, "[%s][%s][%d]%s", __FILE__, __func__,
> __LINE__, msg); \
> const log4c_location_info_t locinfo =
> LOG4C_LOCATION_INFO_INITIALIZER(NULL); \
> log4c_category_log_locinfo(__mycat_error, &locinfo,
> LOG4C_PRIORITY_ERROR, __msg_log, ##args); \
> }
>
> #define HLOG_WARN(msg, args...) { \
> if (NULL == __mycat_warn) { \
> __mycat_warn = log4c_category_get("hlfslogwf"); \
> } \
> memset(__msg_log, 0, LOG_LEN); \
> snprintf(__msg_log, LOG_LEN, "[%s][%s][%d]%s", __FILE__, __func__,
> __LINE__, msg); \
> const log4c_location_info_t locinfo =
> LOG4C_LOCATION_INFO_INITIALIZER(NULL); \
> log4c_category_log_locinfo(__mycat_warn, &locinfo,
> LOG4C_PRIORITY_WARN, __msg_log, ##args); \
> }
> #endif
>
>
> helloworld.c
> ------------------
> /**
> * For testing.
> *
> * Copyright (C) 2009, 2010, Harry Wei
> *
> * This program is free software: you can redistribute it and/or modify it
> * under the terms of the GNU General Public License as published by the Free
> * Software Foundation, either version 3 of the License, or (at your option)
> * any later version.
> *
> * This program is distributed in the hope that it will be useful, but WITHOUT
> * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
> * more details.
> *
> * You should have received a copy of the GNU General Public License along with
> * this program. If not, see <http://www.gnu.org/licenses/>
> */
> #include <stdio.h>
> #include <stdlib.h>
>
> #include "hlfs_log.h"
>
>
> int main(int argc, char** argv){
> if (log4c_init()){
> printf("log4c_init() failed");
> }else{
> HLOG_NOTICE("Hello Wrold");
> HLOG_ERROR("111");
> HLOG_WARN("222");
> HLOG_INFO("3333");
> HLOG_FATAL("7");
> HLOG_TRACE("8");
> HLOG_NOTICE("9");
>
> /* Explicitly call the log4c cleanup routine */
> if ( log4c_fini()){
> printf("log4c_fini() failed");
> }
> }
> return 0;
> }
>
> log4crc
> -----------
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <!DOCTYPE log4c SYSTEM "">
>
> <log4c version="1.2.1">
>
> <config>
> <bufsize>0</bufsize>
> <debug level="2"/>
> <nocleanup>0</nocleanup>
> <reread>1</reread>
> </config>
>
> <category name="hlfslog" priority="debug" appender="myrollingfileappender" />
> <category name="hlfslog" priority="notice" appender="myrollingfileappender" />
> <category name="hlfslog" priority="trace" appender="myrollingfileappender" />
> <category name="hlfslog" priority="info" appender="myrollingfileappender" />
> <rollingpolicy name="myrollingpolicy" type="sizewin"
> maxsize="1048576000" maxnum="10" />
> <appender name="myrollingfileappender" type="rollingfile" logdir="./"
> prefix="log" layout="dated" rollingpolicy="myrollingpolicy" />
> <layout name="dated" type="dated"/>
>
> <category name="hlfslogwf" priority="fatal"
> appender="myrollingfileappenderwf" />
> <category name="hlfslogwf" priority="error"
> appender="myrollingfileappenderwf" />
> <category name="hlfslogwf" priority="warn"
> appender="myrollingfileappenderwf" />
> <rollingpolicy name="myrollingpolicywf" type="sizewin"
> maxsize="1048576000" maxnum="10" />
> <appender name="myrollingfileappenderwf" type="rollingfile"
> logdir="./" prefix="log.wf" layout="dated"
> rollingpolicy="myrollingpolicywf" />
> <layout name="dated" type="dated"/>
>
> </log4c>
>
--
Thanks
Harry Wei
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