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e9a7d4a1c8
Windows compilers define `_WIN32` automatically. Windows SDK headers or build env defines `WIN32`, or we have to take care of it. The agreement seems to be that `_WIN32` is the preferred practice here. Make the source code rely on that to detect we're building for Windows. Public `curl.h` was using `WIN32`, `__WIN32__` and `CURL_WIN32` for Windows detection, next to the official `_WIN32`. After this patch it only uses `_WIN32` for this. Also, make it stop defining `CURL_WIN32`. There is a slight chance these break compatibility with Windows compilers that fail to define `_WIN32`. I'm not aware of any obsolete or modern compiler affected, but in case there is one, one possible solution is to define this macro manually. grepping for `WIN32` remains useful to discover Windows-specific code. Also: - extend `checksrc` to ensure we're not using `WIN32` anymore. - apply minor formatting here and there. - delete unnecessary checks for `!MSDOS` when `_WIN32` is present. Co-authored-by: Jay Satiro Reviewed-by: Daniel Stenberg Closes #12376
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "timediff.h"
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#include <limits.h>
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/*
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* Converts number of milliseconds into a timeval structure.
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*
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* Return values:
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* NULL IF tv is NULL or ms < 0 (eg. no timeout -> blocking select)
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* tv with 0 in both fields IF ms == 0 (eg. 0ms timeout -> polling select)
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* tv with converted fields IF ms > 0 (eg. >0ms timeout -> waiting select)
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*/
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struct timeval *curlx_mstotv(struct timeval *tv, timediff_t ms)
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{
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if(!tv)
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return NULL;
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if(ms < 0)
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return NULL;
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if(ms > 0) {
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timediff_t tv_sec = ms / 1000;
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timediff_t tv_usec = (ms % 1000) * 1000; /* max=999999 */
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#ifdef HAVE_SUSECONDS_T
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#if TIMEDIFF_T_MAX > TIME_T_MAX
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/* tv_sec overflow check in case time_t is signed */
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if(tv_sec > TIME_T_MAX)
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tv_sec = TIME_T_MAX;
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#endif
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tv->tv_sec = (time_t)tv_sec;
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tv->tv_usec = (suseconds_t)tv_usec;
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#elif defined(_WIN32) /* maybe also others in the future */
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#if TIMEDIFF_T_MAX > LONG_MAX
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/* tv_sec overflow check on Windows there we know it is long */
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if(tv_sec > LONG_MAX)
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tv_sec = LONG_MAX;
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#endif
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tv->tv_sec = (long)tv_sec;
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tv->tv_usec = (long)tv_usec;
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#else
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#if TIMEDIFF_T_MAX > INT_MAX
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/* tv_sec overflow check in case time_t is signed */
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if(tv_sec > INT_MAX)
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tv_sec = INT_MAX;
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#endif
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tv->tv_sec = (int)tv_sec;
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tv->tv_usec = (int)tv_usec;
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#endif
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}
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else {
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tv->tv_sec = 0;
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tv->tv_usec = 0;
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}
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return tv;
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}
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/*
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* Converts a timeval structure into number of milliseconds.
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*/
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timediff_t curlx_tvtoms(struct timeval *tv)
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{
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return (tv->tv_sec*1000) + (timediff_t)(((double)tv->tv_usec)/1000.0);
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}
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