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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2020 - 2021, 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 https://curl.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.
*
***************************************************************************/
#include "rename.h"
#include "curl_setup.h"
#if (!defined(CURL_DISABLE_HTTP) || !defined(CURL_DISABLE_COOKIES)) || \
!defined(CURL_DISABLE_ALTSVC)
#include "curl_multibyte.h"
#include "timeval.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* return 0 on success, 1 on error */
int Curl_rename(const char *oldpath, const char *newpath)
{
#ifdef WIN32
/* rename() on Windows doesn't overwrite, so we can't use it here.
MoveFileEx() will overwrite and is usually atomic, however it fails
when there are open handles to the file. */
const int max_wait_ms = 1000;
struct curltime start = Curl_now();
TCHAR *tchar_oldpath = curlx_convert_UTF8_to_tchar((char *)oldpath);
TCHAR *tchar_newpath = curlx_convert_UTF8_to_tchar((char *)newpath);
for(;;) {
timediff_t diff;
if(MoveFileEx(tchar_oldpath, tchar_newpath, MOVEFILE_REPLACE_EXISTING)) {
CURLX_UNICODEFREE(tchar_oldpath);
CURLX_UNICODEFREE(tchar_newpath);
break;
}
diff = Curl_timediff(Curl_now(), start);
if(diff < 0 || diff > max_wait_ms) {
CURLX_UNICODEFREE(tchar_oldpath);
CURLX_UNICODEFREE(tchar_newpath);
return 1;
}
Sleep(1);
}
#else
if(rename(oldpath, newpath))
return 1;
#endif
return 0;
}
#endif
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