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      1 /*	$NetBSD: logging.h,v 1.1.1.1 2009/12/02 00:27:06 haad Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
      5  *
      6  * This copyrighted material is made available to anyone wishing to use,
      7  * modify, copy, or redistribute it subject to the terms and conditions
      8  * of the GNU Lesser General Public License v.2.1.
      9  *
     10  * You should have received a copy of the GNU Lesser General Public License
     11  * along with this program; if not, write to the Free Software Foundation,
     12  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     13  */
     14 
     15 #ifndef __CLUSTER_LOG_LOGGING_DOT_H__
     16 #define __CLUSTER_LOG_LOGGING_DOT_H__
     17 
     18 #include <stdio.h>
     19 #include <syslog.h>
     20 
     21 /* SHORT_UUID - print last 8 chars of a string */
     22 #define SHORT_UUID(x) (strlen(x) > 8) ? ((x) + (strlen(x) - 8)) : (x)
     23 
     24 extern char *__rq_types_off_by_one[];
     25 #define RQ_TYPE(x) __rq_types_off_by_one[(x) - 1]
     26 
     27 extern int log_tabbing;
     28 extern int log_is_open;
     29 extern int log_membership_change;
     30 extern int log_checkpoint;
     31 extern int log_resend_requests;
     32 
     33 #define LOG_OPEN(ident, option, facility) do { \
     34 		openlog(ident, option, facility); \
     35 		log_is_open = 1;		  \
     36 	} while (0)
     37 
     38 #define LOG_CLOSE(void) do { \
     39 		log_is_open = 0; \
     40 		closelog();	 \
     41 	} while (0)
     42 
     43 #define LOG_OUTPUT(level, f, arg...) do {				\
     44 		int __i;						\
     45 		char __buffer[16];					\
     46 		FILE *fp = (level > LOG_NOTICE) ? stderr : stdout;	\
     47 		if (log_is_open) {					\
     48 			for (__i = 0; (__i < log_tabbing) && (__i < 15); __i++) \
     49 				__buffer[__i] = '\t';			\
     50 			__buffer[__i] = '\0';				\
     51 			syslog(level, "%s" f "\n", __buffer, ## arg);	\
     52 		} else {						\
     53 			for (__i = 0; __i < log_tabbing; __i++)		\
     54 				fprintf(fp, "\t");			\
     55 			fprintf(fp, f "\n", ## arg);			\
     56 		}							\
     57 	} while (0)
     58 
     59 
     60 #ifdef DEBUG
     61 #define LOG_DBG(f, arg...) LOG_OUTPUT(LOG_DEBUG, f, ## arg)
     62 #else /* DEBUG */
     63 #define LOG_DBG(f, arg...)
     64 #endif /* DEBUG */
     65 
     66 #define LOG_COND(__X, f, arg...) do {\
     67 		if (__X) { 	     \
     68 			LOG_OUTPUT(LOG_NOTICE, f, ## arg); \
     69 		} \
     70 	} while (0)
     71 #define LOG_PRINT(f, arg...) LOG_OUTPUT(LOG_NOTICE, f, ## arg)
     72 #define LOG_ERROR(f, arg...) LOG_OUTPUT(LOG_ERR, f, ## arg)
     73 
     74 #endif /* __CLUSTER_LOG_LOGGING_DOT_H__ */
     75