external/gpl2/lvm2/dist/daemons/cmirrord/logging.h

   1 /*      $NetBSD$        */
   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__ */