Utilities/cmcurl/timeval.h

   1 #ifndef __TIMEVAL_H
   2 #define __TIMEVAL_H
   3 /***************************************************************************
   4  *                                  _   _ ____  _
   5  *  Project                     ___| | | |  _ \| |
   6  *                             / __| | | | |_) | |
   7  *                            | (__| |_| |  _ <| |___
   8  *                             \___|\___/|_| \_\_____|
   9  *
  10  * Copyright (C) 1998 - 2006, Daniel Stenberg, <daniel@haxx.se>, et al.
  11  *
  12  * This software is licensed as described in the file COPYING, which
  13  * you should have received as part of this distribution. The terms
  14  * are also available at http://curl.haxx.se/docs/copyright.html.
  15  *
  16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
  17  * copies of the Software, and permit persons to whom the Software is
  18  * furnished to do so, under the terms of the COPYING file.
  19  *
  20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  21  * KIND, either express or implied.
  22  *
  23  * $Id: timeval.h,v 1.3 2007-03-15 19:22:13 andy Exp $
  24  ***************************************************************************/
  25
  26 /*
  27  * CAUTION: this header is designed to work when included by the app-side
  28  * as well as the library. Do not mix with library internals!
  29  */
  30
  31 #include "setup.h"
  32
  33 #ifdef HAVE_SYS_TIME_H
  34 #include <sys/time.h>
  35 #ifdef TIME_WITH_SYS_TIME
  36 #include <time.h>
  37 #endif
  38 #else
  39 #ifdef HAVE_TIME_H
  40 #include <time.h>
  41 #endif
  42 #endif
  43
  44 #ifndef HAVE_STRUCT_TIMEVAL
  45 struct timeval {
  46  long tv_sec;
  47  long tv_usec;
  48 };
  49 #endif
  50
  51 struct timeval curlx_tvnow(void);
  52
  53 /*
  54  * Make sure that the first argument (t1) is the more recent time and t2 is
  55  * the older time, as otherwise you get a weird negative time-diff back...
  56  *
  57  * Returns: the time difference in number of milliseconds.
  58  */
  59 long curlx_tvdiff(struct timeval t1, struct timeval t2);
  60
  61 /*
  62  * Same as curlx_tvdiff but with full usec resolution.
  63  *
  64  * Returns: the time difference in seconds with subsecond resolution.
  65  */
  66 double curlx_tvdiff_secs(struct timeval t1, struct timeval t2);
  67
  68 long Curl_tvlong(struct timeval t1);
  69
  70 /* These two defines below exist to provide the older API for library
  71    internals only. */
  72 #define Curl_tvnow() curlx_tvnow()
  73 #define Curl_tvdiff(x,y) curlx_tvdiff(x,y)
  74 #define Curl_tvdiff_secs(x,y) curlx_tvdiff_secs(x,y)
  75
  76 #endif