ermetadb_log.h

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00001 #ifndef __ERMETADB_LOG_H__
00002 #define __ERMETADB_LOG_H__
00003 
00004 /**
00005  * File Name  : ermetadb_log.h
00006  *
00007  * Description: Macros for debug printing.
00008  *
00009  * The value of ERREGLOG_X_ON (with X one of LOGGING, WARNING or ERROR)
00010  * determines whether a message will be printed. The value as defined
00011  * in this file can be overruled by defining them before the inclusion of this file.
00012  *
00013  * This file is best included in c files only.
00014  */
00015 
00016 /*
00017  * This file is part of libermetadb.
00018  *
00019  * libermetadb is free software: you can redistribute it and/or modify
00020  * it under the terms of the GNU General Public License as published by
00021  * the Free Software Foundation, either version 2 of the License, or
00022  * (at your option) any later version.
00023  *
00024  * libermetadb is distributed in the hope that it will be useful,
00025  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00026  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00027  * GNU General Public License for more details.
00028  *
00029  * You should have received a copy of the GNU General Public License
00030  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00031  */
00032 
00033 /**
00034  * Copyright (C) 2008 iRex Technologies B.V.
00035  * All rights reserved.
00036  */
00037 
00038 #include <stdio.h>
00039 
00040 #define LOG_PREFIX  "ERMDB"
00041 
00042 #ifndef USE_SYSLOG
00043 #define USE_SYSLOG 0
00044 #endif
00045 
00046 #ifndef TRACING_ON
00047 #define TRACING_ON 0
00048 #endif
00049  
00050 #ifndef LOGGING_ON
00051 #define LOGGING_ON 0
00052 #endif
00053 
00054 #ifndef QUERY_ON
00055 #define QUERY_ON 0
00056 #endif
00057 
00058 #ifndef WARNING_ON
00059 #define WARNING_ON 1
00060 #endif
00061 
00062 #ifndef ERROR_ON
00063 #define ERROR_ON 1
00064 #endif
00065 
00066 
00067 #if (USE_SYSLOG)
00068 #include <syslog.h>
00069 #define LOG_OPEN(X) openlog(X, LOG_PID | LOG_NDELAY, LOG_USER)
00070 #define LOG_CLOSE() closelog()
00071 #else
00072 #define LOG_OPEN(X) do {} while (0)
00073 #define LOG_CLOSE() do {} while (0)
00074 #endif
00075 
00076 #if (TRACING_ON)
00077 #define TRACE(format, args...) fprintf(stderr, "(" LOG_PREFIX "_L)" __FILE__ ":%d,%s() " format "\n", __LINE__, __func__ , ##args)
00078 #else
00079 #define TRACE(format, args...) do {} while (0)
00080 #endif
00081 
00082 #if (LOGGING_ON)
00083 #if (USE_SYSLOG)
00084 #define LOGPRINTF(format, args...) syslog(LOG_INFO | LOG_USER, __FILE__ ":%d,%s() " format "\n", __LINE__, __func__ , ##args)
00085 #else
00086 #define LOGPRINTF(format, args...) fprintf(stderr, "(" LOG_PREFIX "_L)" __FILE__ ":%d,%s() " format "\n", __LINE__, __func__ , ##args)
00087 #endif
00088 #else
00089 #define LOGPRINTF(format, args...) do {} while (0)
00090 #endif
00091 
00092 #if (QUERY_ON)
00093 #if (USE_SYSLOG)
00094 #define QUERYPRINTF(format, args...) syslog(LOG_INFO | LOG_USER, __FILE__ ":%d,%s() " format "\n", __LINE__, __func__ , ##args)
00095 #else
00096 #define QUERYPRINTF(format, args...) fprintf(stderr, "(" LOG_PREFIX "_Q)" __FILE__ ":%d,%s() " format "\n", __LINE__, __func__ , ##args)
00097 #endif
00098 #else
00099 #define QUERYPRINTF(format, args...) do {} while (0)
00100 #endif
00101 
00102 #if (WARNING_ON)
00103 #if (USE_SYSLOG)
00104 #define WARNPRINTF(format, args...) syslog(LOG_WARNING | LOG_USER, __FILE__ ":%d,%s() " format "\n", __LINE__, __func__ , ##args)
00105 #else
00106 #define WARNPRINTF(format, args...) fprintf(stderr, "(" LOG_PREFIX "_W)" __FILE__ ":%d,%s() " format "\n", __LINE__, __func__ , ##args)
00107 #endif
00108 #else
00109 #define WARNPRINTF(format, args...) do {} while (0)
00110 #endif
00111 
00112 #if (ERROR_ON)
00113 #include <errno.h>
00114 #include <string.h>
00115 #if (USE_SYSLOG)
00116 #define ERRORPRINTF(format, args...) syslog(LOG_ERR | LOG_USER, __FILE__ ":%d,%s() --- " format "\n", __LINE__, __func__ , ##args)
00117 #define ERRNOPRINTF(format, args...) syslog(LOG_ERR | LOG_USER, __FILE__ ":%d,%s() --- " format ", errno [%d] [%s]\n", __LINE__, __func__ , ##args, errno, strerror(errno))
00118 #else
00119 #define ERRORPRINTF(format, args...) fprintf(stderr, "(" LOG_PREFIX "_E)" __FILE__ ":%d,%s() --- " format "\n", __LINE__, __func__ , ##args)
00120 #define ERRNOPRINTF(format, args...) fprintf(stderr, "(" LOG_PREFIX "_E)" __FILE__ ":%d,%s() --- " format ", errno [%d] [%s]\n", __LINE__, __func__ , ##args, errno, strerror(errno))
00121 #endif
00122 #else
00123 #define ERRORPRINTF(format, args...) do {} while (0)
00124 #define ERRNOPRINTF(format, args...) do {} while (0)
00125 #endif
00126 
00127 #endif // __ERMETADB_LOG_H__