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 die(const char *fmt, ...);
  27 void *malloc_or_die(unsigned int size);
  28 void warning(const char *fmt, ...);
  29 void pr_stat(const char *fmt, ...);
  30 void vpr_stat(const char *fmt, va_list ap);
  31
  32 /* Always available */
  33 void __die(const char *fmt, ...);
  34 void __warning(const char *fmt, ...);
  35 void __pr_stat(const char *fmt, ...);
  36
  37 void __vdie(const char *fmt, ...);
  38 void __vwarning(const char *fmt, ...);
  39 void __vpr_stat(const char *fmt, ...);
  40
  41 #define min(x, y) ({                            \
  42         typeof(x) _min1 = (x);                  \
  43         typeof(y) _min2 = (y);                  \
  44         (void) (&_min1 == &_min2);              \
  45         _min1 < _min2 ? _min1 : _min2; })
  46
  47 static inline char *strim(char *string)
  48 {
  49         char *ret;
  50
  51         if (!string)
  52                 return NULL;
  53         while (*string) {
  54                 if (!isspace(*string))
  55                         break;
  56                 string++;
  57         }
  58         ret = string;
  59
  60         string = ret + strlen(ret) - 1;
  61         while (string > ret) {
  62                 if (!isspace(*string))
  63                         break;
  64                 string--;
  65         }
  66         string[1] = 0;
  67
  68         return ret;
  69 }
  70
  71 static inline int has_text(const char *text)
  72 {
  73         if (!text)
  74                 return 0;
  75
  76         while (*text) {
  77                 if (!isspace(*text))
  78                         return 1;
  79                 text++;
  80         }
  81
  82         return 0;
  83 }
  84
  85 #endif