contrib/sendmail-8.13.8/include/sm/time.h

   1 /*
   2  * Copyright (c) 2005 Sendmail, Inc. and its suppliers.
   3  *      All rights reserved.
   4  *
   5  * By using this file, you agree to the terms and conditions set
   6  * forth in the LICENSE file which can be found at the top level of
   7  * the sendmail distribution.
   8  *
   9  *      $Id: time.h,v 1.1 2005/06/14 23:07:19 ca Exp $
  10  */
  11
  12 #ifndef SM_TIME_H
  13 # define SM_TIME_H 1
  14
  15 # include <sm/config.h>
  16
  17 # include <sys/time.h>
  18
  19 /* should be defined in sys/time.h */
  20 #ifndef timersub
  21 # define timersub(tvp, uvp, vvp)                                        \
  22         do                                                              \
  23         {                                                               \
  24                 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;          \
  25                 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \
  26                 if ((vvp)->tv_usec < 0)                                 \
  27                 {                                                       \
  28                         (vvp)->tv_sec--;                                \
  29                         (vvp)->tv_usec += 1000000;                      \
  30                 }                                                       \
  31         } while (0)
  32 #endif /* !timersub */
  33
  34 #ifndef timeradd
  35 # define timeradd(tvp, uvp, vvp)                                        \
  36         do                                                              \
  37         {                                                               \
  38                 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;          \
  39                 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;       \
  40                 if ((vvp)->tv_usec >= 1000000)                          \
  41                 {                                                       \
  42                         (vvp)->tv_sec++;                                \
  43                         (vvp)->tv_usec -= 1000000;                      \
  44                 }                                                       \
  45         } while (0)
  46 #endif /* !timeradd */
  47
  48 #ifndef timercmp
  49 # define timercmp(tvp, uvp, cmp)                                        \
  50         (((tvp)->tv_sec == (uvp)->tv_sec) ?                             \
  51             ((tvp)->tv_usec cmp (uvp)->tv_usec) :                       \
  52             ((tvp)->tv_sec cmp (uvp)->tv_sec))
  53 #endif /* !timercmp */
  54
  55
  56 #endif /* ! SM_TIME_H */