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74 lines
2.3 KiB
C
74 lines
2.3 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 "rename.h"
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#include "curl_setup.h"
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#if (!defined(CURL_DISABLE_HTTP) || !defined(CURL_DISABLE_COOKIES)) || \
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!defined(CURL_DISABLE_ALTSVC)
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#include "curl_multibyte.h"
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#include "timeval.h"
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/* The last 3 #include files should be in this order */
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#include "curl_printf.h"
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#include "curl_memory.h"
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#include "memdebug.h"
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/* return 0 on success, 1 on error */
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int Curl_rename(const char *oldpath, const char *newpath)
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{
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#ifdef _WIN32
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/* rename() on Windows doesn't overwrite, so we can't use it here.
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MoveFileEx() will overwrite and is usually atomic, however it fails
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when there are open handles to the file. */
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const int max_wait_ms = 1000;
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struct curltime start = Curl_now();
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TCHAR *tchar_oldpath = curlx_convert_UTF8_to_tchar((char *)oldpath);
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TCHAR *tchar_newpath = curlx_convert_UTF8_to_tchar((char *)newpath);
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for(;;) {
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timediff_t diff;
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if(MoveFileEx(tchar_oldpath, tchar_newpath, MOVEFILE_REPLACE_EXISTING)) {
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curlx_unicodefree(tchar_oldpath);
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curlx_unicodefree(tchar_newpath);
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break;
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}
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diff = Curl_timediff(Curl_now(), start);
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if(diff < 0 || diff > max_wait_ms) {
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curlx_unicodefree(tchar_oldpath);
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curlx_unicodefree(tchar_newpath);
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return 1;
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}
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Sleep(1);
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}
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#else
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if(rename(oldpath, newpath))
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return 1;
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#endif
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return 0;
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}
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#endif
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