util.h

   1 /* util.h - util functions */
   2
   3 /* Copyright (C) 2007 Keith Rarick and Philotic Inc.
   4
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   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 General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef util_h
  20 #define util_h
  21
  22 #include "config.h"
  23
  24 #if HAVE_STDINT_H
  25 # include <stdint.h>
  26 #endif /* else we get int types from config.h */
  27
  28 #include <stdlib.h>
  29 #include <sys/time.h>
  30
  31 #define min(a,b) ((a)<(b)?(a):(b))
  32
  33 void v();
  34
  35 void warn(const char *fmt, ...);
  36 void warnx(const char *fmt, ...);
  37
  38 extern char *progname;
  39
  40 #define twarn(fmt, args...) warn("%s:%d in %s: " fmt, \
  41                                  __FILE__, __LINE__, __func__, ##args)
  42 #define twarnx(fmt, args...) warnx("%s:%d in %s: " fmt, \
  43                                    __FILE__, __LINE__, __func__, ##args)
  44
  45 #ifdef DEBUG
  46 #define dbgprintf(fmt, args...) ((void) fprintf(stderr, fmt, ##args))
  47 #else
  48 #define dbgprintf(fmt, ...) ((void) 0)
  49 #endif
  50
  51 typedef uint64_t usec;
  52 #define USEC (1)
  53 #define MSEC (1000 * USEC)
  54 #define SECOND (1000 * MSEC)
  55
  56 usec now_usec(void);
  57 usec usec_from_timeval(struct timeval *tv);
  58 void timeval_from_usec(struct timeval *tv, usec t);
  59
  60 #endif /*util_h*/