gcc/ada/cal.c

   1 /****************************************************************************
   2  *                                                                          *
   3  *                         GNAT COMPILER COMPONENTS                         *
   4  *                                                                          *
   5  *                                   C A L                                  *
   6  *                                                                          *
   7  *                          C Implementation File                           *
   8  *                                                                          *
   9  *          Copyright (C) 1992-2017, Free Software Foundation, Inc.         *
  10  *                                                                          *
  11  * GNAT is free software;  you can  redistribute it  and/or modify it under *
  12  * terms of the  GNU General Public License as published  by the Free Soft- *
  13  * ware  Foundation;  either version 3,  or (at your option) any later ver- *
  14  * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
  15  * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
  16  * or FITNESS FOR A PARTICULAR PURPOSE.                                     *
  17  *                                                                          *
  18  * As a special exception under Section 7 of GPL version 3, you are granted *
  19  * additional permissions described in the GCC Runtime Library Exception,   *
  20  * version 3.1, as published by the Free Software Foundation.               *
  21  *                                                                          *
  22  * You should have received a copy of the GNU General Public License and    *
  23  * a copy of the GCC Runtime Library Exception along with this program;     *
  24  * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    *
  25  * <http://www.gnu.org/licenses/>.                                          *
  26  *                                                                          *
  27  * GNAT was originally developed  by the GNAT team at  New York University. *
  28  * Extensive contributions were provided by Ada Core Technologies Inc.      *
  29  *                                                                          *
  30  ****************************************************************************/
  31
  32 /*  This file contains routines marked with pragmas Import in package       */
  33 /*  GNAT.Calendar. It is used to do Duration to timeval conversion.         */
  34 /*  These are simple wrapper functions to abstract the fact that the C      */
  35 /*  struct timeval fields are not normalized (they are generally            */
  36 /*  defined as int or long values).                                         */
  37
  38 #if defined (__vxworks)
  39 #ifdef __RTP__
  40 #include <time.h>
  41 #include <version.h>
  42 #if (_WRS_VXWORKS_MAJOR == 7) || (_WRS_VXWORKS_MINOR != 0)
  43 #include <sys/time.h>
  44 #endif
  45 #else
  46 #include <sys/times.h>
  47 #endif
  48 #elif defined (__nucleus__)
  49 #include <time.h>
  50 #else
  51 #include <sys/time.h>
  52 #endif
  53
  54 #ifdef __MINGW32__
  55 #include "mingw32.h"
  56 #if STD_MINGW
  57 #include <winsock.h>
  58 #endif
  59 #endif
  60
  61 void
  62 __gnat_timeval_to_duration (struct timeval *t, long long *sec, long *usec)
  63 {
  64   *sec  = (long long) t->tv_sec;
  65   *usec = (long) t->tv_usec;
  66 }
  67
  68 void
  69 __gnat_duration_to_timeval (long long sec, long usec, struct timeval *t)
  70 {
  71   /* here we are doing implicit conversion to the struct timeval
  72      fields types. */
  73
  74   t->tv_sec = sec;
  75   t->tv_usec = usec;
  76 }