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  • /***************************************************************************
     *                                  _   _ ____  _
     *  Project                     ___| | | |  _ \| |
     *                             / __| | | | |_) | |
     *                            | (__| |_| |  _ <| |___
     *                             \___|\___/|_| \_\_____|
     *
     * Copyright (C) 1998 - 2007, Daniel Stenberg, <daniel@haxx.se>, et al.
     *
     * This software is licensed as described in the file COPYING, which
     * you should have received as part of this distribution. The terms
     * are also available at http://curl.haxx.se/docs/copyright.html.
     *
     * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     * copies of the Software, and permit persons to whom the Software is
     * furnished to do so, under the terms of the COPYING file.
     *
     * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     * KIND, either express or implied.
     *
     * $Id$
     ***************************************************************************/
    
    #include "testutil.h"
    
    #ifndef HAVE_GETTIMEOFDAY
    
    #ifdef WIN32
    #include <mmsystem.h>
    
    static int gettimeofday(struct timeval *tp, void *nothing)
    {
    #ifdef WITHOUT_MM_LIB
      SYSTEMTIME st;
      time_t tt;
      struct tm tmtm;
      /* mktime converts local to UTC */
      GetLocalTime (&st);
      tmtm.tm_sec = st.wSecond;
      tmtm.tm_min = st.wMinute;
      tmtm.tm_hour = st.wHour;
      tmtm.tm_mday = st.wDay;
      tmtm.tm_mon = st.wMonth - 1;
      tmtm.tm_year = st.wYear - 1900;
      tmtm.tm_isdst = -1;
      tt = mktime (&tmtm);
      tp->tv_sec = tt;
      tp->tv_usec = st.wMilliseconds * 1000;
    #else
      /**
       ** The earlier time calculations using GetLocalTime
       ** had a time resolution of 10ms.The timeGetTime, part
       ** of multimedia apis offer a better time resolution
       ** of 1ms.Need to link against winmm.lib for this
       **/
      unsigned long Ticks = 0;
      unsigned long Sec =0;
      unsigned long Usec = 0;
      Ticks = timeGetTime();
    
      Sec = Ticks/1000;
      Usec = (Ticks - (Sec*1000))*1000;
      tp->tv_sec = Sec;
      tp->tv_usec = Usec;
    #endif /* WITHOUT_MM_LIB */
      (void)nothing;
      return 0;
    }
    #else /* WIN32 */
    /* non-win32 version of Curl_gettimeofday() */
    static int gettimeofday(struct timeval *tp, void *nothing)
    {
      (void)nothing; /* we don't support specific time-zones */
      tp->tv_sec = (long)time(NULL);
      tp->tv_usec = 0;
      return 0;
    }
    #endif /* WIN32 */
    #endif /* HAVE_GETTIMEOFDAY */
    
    /* Return the current time in a timeval struct */
    struct timeval tutil_tvnow(void)
    {
      struct timeval now;
      (void)gettimeofday(&now, NULL);
      return now;
    }
    
    /*
     * Make sure that the first argument is the more recent time, as otherwise
     * we'll get a weird negative time-diff back...
     *
     * Returns: the time difference in number of milliseconds.
     */
    long tutil_tvdiff(struct timeval newer, struct timeval older)
    {
      return (newer.tv_sec-older.tv_sec)*1000+
        (newer.tv_usec-older.tv_usec)/1000;
    }
    
    
    /*
     * Same as tutil_tvdiff but with full usec resolution.
     *
     * Returns: the time difference in seconds with subsecond resolution.
     */
    double tutil_tvdiff_secs(struct timeval newer, struct timeval older)
    {
      return (double)(newer.tv_sec-older.tv_sec)+
        (double)(newer.tv_usec-older.tv_usec)/1000000.0;
    }
    
    
    /* return the number of seconds in the given input timeval struct */
    long tutil_tvlong(struct timeval t1)
    {
      return t1.tv_sec;
    }