timediff.h (1914B)
1 #ifndef HEADER_CURL_TIMEDIFF_H 2 #define HEADER_CURL_TIMEDIFF_H 3 /*************************************************************************** 4 * _ _ ____ _ 5 * Project ___| | | | _ \| | 6 * / __| | | | |_) | | 7 * | (__| |_| | _ <| |___ 8 * \___|\___/|_| \_\_____| 9 * 10 * Copyright (C) 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 https://curl.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 * SPDX-License-Identifier: curl 24 * 25 ***************************************************************************/ 26 27 #include "../curl_setup.h" 28 29 /* Use a larger type even for 32-bit time_t systems so that we can keep 30 microsecond accuracy in it */ 31 typedef curl_off_t timediff_t; 32 #define FMT_TIMEDIFF_T FMT_OFF_T 33 34 #define TIMEDIFF_T_MAX CURL_OFF_T_MAX 35 #define TIMEDIFF_T_MIN CURL_OFF_T_MIN 36 37 /* 38 * Converts number of milliseconds into a timeval structure. 39 * 40 * Return values: 41 * NULL IF tv is NULL or ms < 0 (eg. no timeout -> blocking select) 42 * tv with 0 in both fields IF ms == 0 (eg. 0ms timeout -> polling select) 43 * tv with converted fields IF ms > 0 (eg. >0ms timeout -> waiting select) 44 */ 45 struct timeval *curlx_mstotv(struct timeval *tv, timediff_t ms); 46 47 /* 48 * Converts a timeval structure into number of milliseconds. 49 */ 50 timediff_t curlx_tvtoms(struct timeval *tv); 51 52 #endif /* HEADER_CURL_TIMEDIFF_H */