quickjs-tart

quickjs-based runtime for wallet-core logic
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rename.c (2411B)

      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
      9  *
     10  * This software is licensed as described in the file COPYING, which
     11  * you should have received as part of this distribution. The terms
     12  * are also available at https://curl.se/docs/copyright.html.
     13  *
     14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     15  * copies of the Software, and permit persons to whom the Software is
     16  * furnished to do so, under the terms of the COPYING file.
     17  *
     18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     19  * KIND, either express or implied.
     20  *
     21  * SPDX-License-Identifier: curl
     22  *
     23  ***************************************************************************/
     24 
     25 #include "rename.h"
     26 
     27 #include "curl_setup.h"
     28 
     29 #if (!defined(CURL_DISABLE_HTTP) || !defined(CURL_DISABLE_COOKIES)) || \
     30   !defined(CURL_DISABLE_ALTSVC)
     31 
     32 #include "curlx/multibyte.h"
     33 #include "curlx/timeval.h"
     34 
     35 /* The last 3 #include files should be in this order */
     36 #include "curl_printf.h"
     37 #include "curl_memory.h"
     38 #include "memdebug.h"
     39 
     40 /* return 0 on success, 1 on error */
     41 int Curl_rename(const char *oldpath, const char *newpath)
     42 {
     43 #if defined(_WIN32) && !defined(UNDER_CE)
     44   /* rename() on Windows does not overwrite, so we cannot use it here.
     45      MoveFileEx() will overwrite and is usually atomic, however it fails
     46      when there are open handles to the file. */
     47   const int max_wait_ms = 1000;
     48   struct curltime start = curlx_now();
     49   TCHAR *tchar_oldpath = curlx_convert_UTF8_to_tchar(oldpath);
     50   TCHAR *tchar_newpath = curlx_convert_UTF8_to_tchar(newpath);
     51   for(;;) {
     52     timediff_t diff;
     53     if(MoveFileEx(tchar_oldpath, tchar_newpath, MOVEFILE_REPLACE_EXISTING)) {
     54       curlx_unicodefree(tchar_oldpath);
     55       curlx_unicodefree(tchar_newpath);
     56       break;
     57     }
     58     diff = curlx_timediff(curlx_now(), start);
     59     if(diff < 0 || diff > max_wait_ms) {
     60       curlx_unicodefree(tchar_oldpath);
     61       curlx_unicodefree(tchar_newpath);
     62       return 1;
     63     }
     64     Sleep(1);
     65   }
     66 #else
     67   if(rename(oldpath, newpath))
     68     return 1;
     69 #endif
     70   return 0;
     71 }
     72 
     73 #endif