log.h

   1 /*****************************************************************************
   2   Copyright (c) 2006 EMC Corporation.
   3   Copyright (c) 2011 Factor-SPE
   4
   5   This program is free software; you can redistribute it and/or modify it
   6   under the terms of the GNU General Public License as published by the Free
   7   Software Foundation; either version 2 of the License, or (at your option)
   8   any later version.
   9
  10   This program is distributed in the hope that it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc., 59
  17   Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19   The full GNU General Public License is included in this distribution in the
  20   file called LICENSE.
  21
  22   Authors: Srinivas Aji <Aji_Srinivas@emc.com>
  23   Authors: Vitalii Demianets <vitas@nppfactor.kiev.ua>
  24
  25 ******************************************************************************/
  26
  27 #ifndef LOG_H
  28 #define LOG_H
  29
  30 #include <stdio.h>
  31 #include <stdarg.h>
  32
  33 #define LOG_LEVEL_NONE  0
  34 #define LOG_LEVEL_ERROR 1
  35 #define LOG_LEVEL_INFO  2
  36 #define LOG_LEVEL_DEBUG 3
  37 #define LOG_LEVEL_STATE_MACHINE_TRANSITION 4
  38 #define LOG_LEVEL_MAX   100
  39
  40 #define LOG_LEVEL_DEFAULT LOG_LEVEL_INFO
  41
  42 extern void Dprintf(int level, const char *fmt, ...);
  43 extern void vDprintf(int level, const char *fmt, va_list ap);
  44 extern int log_level;
  45
  46 #define PRINT(_level, _fmt, _args...) Dprintf(_level, _fmt, ##_args)
  47
  48 #define TSTM(x, y, _fmt, _args...)                                         \
  49     do if(!(x))                                                            \
  50     {                                                                      \
  51         PRINT(LOG_LEVEL_ERROR, "Error in %s at %s:%d verifying %s. " _fmt, \
  52               __PRETTY_FUNCTION__, __FILE__, __LINE__, #x, ##_args);       \
  53         return y;                                                          \
  54     } while (0)
  55
  56 #define TST(x, y) TSTM(x, y, "")
  57
  58 #define LOG(_fmt, _args...) \
  59     PRINT(LOG_LEVEL_DEBUG, "%s: " _fmt, __PRETTY_FUNCTION__, ##_args)
  60
  61 #define INFO(_fmt, _args...) \
  62     PRINT(LOG_LEVEL_INFO, "%s: " _fmt, __PRETTY_FUNCTION__, ##_args)
  63
  64 #ifdef NO_DAEMON
  65 #define ERROR(_fmt, _args...) \
  66     PRINT(LOG_LEVEL_ERROR, "%s: " _fmt, __PRETTY_FUNCTION__, ##_args)
  67
  68 #else
  69 #include "ctl_socket_server.h"
  70 #define ERROR(_fmt, _args...)                                           \
  71     ({                                                                  \
  72         PRINT(LOG_LEVEL_ERROR, "error, %s: " _fmt, __PRETTY_FUNCTION__, \
  73               ##_args);                                                 \
  74         ctl_err_log(_fmt "\n", ##_args);                                \
  75     })
  76 #endif
  77
  78 static inline void dump_hex(void *b, int l)
  79 {
  80     unsigned char *buf = b;
  81     char logbuf[80];
  82     int i, j;
  83     for (i = 0; i < l; i += 16) {
  84         for (j = 0; j < 16 && i + j < l; ++j)
  85             sprintf(logbuf + j * 3, " %02x", buf[i + j]);
  86         PRINT(LOG_LEVEL_INFO, "%s", logbuf);
  87     }
  88     PRINT(LOG_LEVEL_INFO, "\n");
  89 }
  90
  91 #endif /* LOG_H */