include/lttngerr.h

   1 /* Copyright (C)  2011 - David Goulet <david.goulet@polymtl.ca>
   2  *
   3  * This program is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU General Public License
   5  * as published by the Free Software Foundation; either version 2
   6  * of the License, or (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  16  *
  17  */
  18
  19 #ifndef _LTTNGERR_H
  20 #define _LTTNGERR_H
  21
  22 #include <errno.h>
  23 #include <stdarg.h>
  24
  25 extern int opt_quiet;
  26 extern int opt_verbose;
  27
  28 enum __lttng_print_type {
  29         PRINT_ERR,
  30         PRINT_WARN,
  31         PRINT_BUG,
  32         PRINT_DBG,
  33         PRINT_MSG,
  34 };
  35
  36 /*
  37  *  __lttng_print
  38  *
  39  *  Internal function for printing message
  40  *  depending on command line option and verbosity.
  41  */
  42 void __lttng_print(enum __lttng_print_type type, const char *fmt, ...)
  43 {
  44         va_list ap;
  45         va_start(ap, fmt);
  46
  47         if (opt_quiet == 0) {
  48                 if (type == PRINT_MSG || (opt_verbose && type == PRINT_DBG)) {
  49                         vfprintf(stdout, fmt, ap);
  50                 } else if (type != PRINT_MSG && type != PRINT_DBG) {
  51                         vfprintf(stderr, fmt, ap);
  52                 }
  53         }
  54
  55         va_end(ap);
  56 }
  57
  58 #define MSG(fmt, args...) __lttng_print(PRINT_MSG, fmt "\n", ## args)
  59 #define ERR(fmt, args...) __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
  60 #define WARN(fmt, args...) __lttng_print(PRINT_WARN, "Warning: " fmt "\n", ## args)
  61 #define BUG(fmt, args...) __lttng_print(PRINT_BUG, "BUG: " fmt "\n", ## args)
  62 #define DBG(fmt, args...) __lttng_print(PRINT_DBG, "DEBUG: " fmt "\n", ## args)
  63
  64 #endif /* _LTTNGERR_H */