tools/lib/traceevent/event-utils.h

   1 /*
   2  * Copyright (C) 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
   3  *
   4  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation;
   8  * version 2.1 of the License (not later!)
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this program; if not,  see <http://www.gnu.org/licenses>
  17  *
  18  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  19  */
  20 #ifndef __UTIL_H
  21 #define __UTIL_H
  22
  23 #include <ctype.h>
  24
  25 /* Can be overridden */
  26 void warning(const char *fmt, ...);
  27 void pr_stat(const char *fmt, ...);
  28 void vpr_stat(const char *fmt, va_list ap);
  29
  30 /* Always available */
  31 void __warning(const char *fmt, ...);
  32 void __pr_stat(const char *fmt, ...);
  33
  34 void __vwarning(const char *fmt, ...);
  35 void __vpr_stat(const char *fmt, ...);
  36
  37 #define min(x, y) ({                            \
  38         typeof(x) _min1 = (x);                  \
  39         typeof(y) _min2 = (y);                  \
  40         (void) (&_min1 == &_min2);              \
  41         _min1 < _min2 ? _min1 : _min2; })
  42
  43 static inline char *strim(char *string)
  44 {
  45         char *ret;
  46
  47         if (!string)
  48                 return NULL;
  49         while (*string) {
  50                 if (!isspace(*string))
  51                         break;
  52                 string++;
  53         }
  54         ret = string;
  55
  56         string = ret + strlen(ret) - 1;
  57         while (string > ret) {
  58                 if (!isspace(*string))
  59                         break;
  60                 string--;
  61         }
  62         string[1] = 0;
  63
  64         return ret;
  65 }
  66
  67 static inline int has_text(const char *text)
  68 {
  69         if (!text)
  70                 return 0;
  71
  72         while (*text) {
  73                 if (!isspace(*text))
  74                         return 1;
  75                 text++;
  76         }
  77
  78         return 0;
  79 }
  80
  81 #endif