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, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  20  */
  21 #ifndef __UTIL_H
  22 #define __UTIL_H
  23
  24 #include <ctype.h>
  25
  26 /* Can be overridden */
  27 void die(const char *fmt, ...);
  28 void *malloc_or_die(unsigned int size);
  29 void warning(const char *fmt, ...);
  30 void pr_stat(const char *fmt, ...);
  31 void vpr_stat(const char *fmt, va_list ap);
  32
  33 /* Always available */
  34 void __die(const char *fmt, ...);
  35 void __warning(const char *fmt, ...);
  36 void __pr_stat(const char *fmt, ...);
  37
  38 void __vdie(const char *fmt, ...);
  39 void __vwarning(const char *fmt, ...);
  40 void __vpr_stat(const char *fmt, ...);
  41
  42 #define min(x, y) ({                            \
  43         typeof(x) _min1 = (x);                  \
  44         typeof(y) _min2 = (y);                  \
  45         (void) (&_min1 == &_min2);              \
  46         _min1 < _min2 ? _min1 : _min2; })
  47
  48 static inline char *strim(char *string)
  49 {
  50         char *ret;
  51
  52         if (!string)
  53                 return NULL;
  54         while (*string) {
  55                 if (!isspace(*string))
  56                         break;
  57                 string++;
  58         }
  59         ret = string;
  60
  61         string = ret + strlen(ret) - 1;
  62         while (string > ret) {
  63                 if (!isspace(*string))
  64                         break;
  65                 string--;
  66         }
  67         string[1] = 0;
  68
  69         return ret;
  70 }
  71
  72 static inline int has_text(const char *text)
  73 {
  74         if (!text)
  75                 return 0;
  76
  77         while (*text) {
  78                 if (!isspace(*text))
  79                         return 1;
  80                 text++;
  81         }
  82
  83         return 0;
  84 }
  85
  86 #endif