usr/src/cmd/sendmail/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 #pragma ident   "%Z%%M% %I%     %E% SMI"
  13
  14 #ifndef SM_TIME_H
  15 # define SM_TIME_H 1
  16
  17 # include <sm/config.h>
  18
  19 # include <sys/time.h>
  20
  21 /* should be defined in sys/time.h */
  22 #ifndef timersub
  23 # define timersub(tvp, uvp, vvp)                                        \
  24         do                                                              \
  25         {                                                               \
  26                 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;          \
  27                 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;       \
  28                 if ((vvp)->tv_usec < 0)                                 \
  29                 {                                                       \
  30                         (vvp)->tv_sec--;                                \
  31                         (vvp)->tv_usec += 1000000;                      \
  32                 }                                                       \
  33         } while (0)
  34 #endif /* !timersub */
  35
  36 #ifndef timeradd
  37 # define timeradd(tvp, uvp, vvp)                                        \
  38         do                                                              \
  39         {                                                               \
  40                 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;          \
  41                 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;       \
  42                 if ((vvp)->tv_usec >= 1000000)                          \
  43                 {                                                       \
  44                         (vvp)->tv_sec++;                                \
  45                         (vvp)->tv_usec -= 1000000;                      \
  46                 }                                                       \
  47         } while (0)
  48 #endif /* !timeradd */
  49
  50 #ifndef timercmp
  51 # define timercmp(tvp, uvp, cmp)                                        \
  52         (((tvp)->tv_sec == (uvp)->tv_sec) ?                             \
  53             ((tvp)->tv_usec cmp (uvp)->tv_usec) :                       \
  54             ((tvp)->tv_sec cmp (uvp)->tv_sec))
  55 #endif /* !timercmp */
  56
  57
  58 #endif /* ! SM_TIME_H */