tools/lib/traceevent/event-utils.h

   1 /* SPDX-License-Identifier: LGPL-2.1 */
   2 /*
   3  * Copyright (C) 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
   4  *
   5  */
   6 #ifndef __UTIL_H
   7 #define __UTIL_H
   8
   9 #include <ctype.h>
  10
  11 /* Can be overridden */
  12 void warning(const char *fmt, ...);
  13 void pr_stat(const char *fmt, ...);
  14 void vpr_stat(const char *fmt, va_list ap);
  15
  16 /* Always available */
  17 void __warning(const char *fmt, ...);
  18 void __pr_stat(const char *fmt, ...);
  19
  20 void __vwarning(const char *fmt, ...);
  21 void __vpr_stat(const char *fmt, ...);
  22
  23 #define min(x, y) ({                            \
  24         typeof(x) _min1 = (x);                  \
  25         typeof(y) _min2 = (y);                  \
  26         (void) (&_min1 == &_min2);              \
  27         _min1 < _min2 ? _min1 : _min2; })
  28
  29 static inline char *strim(char *string)
  30 {
  31         char *ret;
  32
  33         if (!string)
  34                 return NULL;
  35         while (*string) {
  36                 if (!isspace(*string))
  37                         break;
  38                 string++;
  39         }
  40         ret = string;
  41
  42         string = ret + strlen(ret) - 1;
  43         while (string > ret) {
  44                 if (!isspace(*string))
  45                         break;
  46                 string--;
  47         }
  48         string[1] = 0;
  49
  50         return ret;
  51 }
  52
  53 static inline int has_text(const char *text)
  54 {
  55         if (!text)
  56                 return 0;
  57
  58         while (*text) {
  59                 if (!isspace(*text))
  60                         return 1;
  61                 text++;
  62         }
  63
  64         return 0;
  65 }
  66
  67 #endif