my_rename.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* Copyright (C) 2000 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #define USES_TYPES
- #include "mysys_priv.h"
- #include <my_dir.h>
- #include "mysys_err.h"
- #undef my_rename
- /* On unix rename deletes to file if it exists */
- int my_rename(const char *from, const char *to, myf MyFlags)
- {
- int error = 0;
- DBUG_ENTER("my_rename");
- DBUG_PRINT("my",("from %s to %s MyFlags %d", from, to, MyFlags));
- #if defined(HAVE_FILE_VERSIONS)
- { /* Check that there isn't a old file */
- int save_errno;
- MY_STAT my_stat_result;
- save_errno=my_errno;
- if (my_stat(to,&my_stat_result,MYF(0)))
- {
- my_errno=EEXIST;
- error= -1;
- if (MyFlags & MY_FAE+MY_WME)
- my_error(EE_LINK, MYF(ME_BELL+ME_WAITTANG),from,to,my_errno);
- DBUG_RETURN(error);
- }
- my_errno=save_errno;
- }
- #endif
- #if defined(HAVE_RENAME)
- #if defined(__WIN__) || defined(__NETWARE__)
- /*
- On windows we can't rename over an existing file:
- Remove any conflicting files:
- */
- (void) my_delete(to, MYF(0));
- #endif
- if (rename(from,to))
- #else
- if (link(from, to) || unlink(from))
- #endif
- {
- my_errno=errno;
- error = -1;
- if (MyFlags & (MY_FAE+MY_WME))
- my_error(EE_LINK, MYF(ME_BELL+ME_WAITTANG),from,to,my_errno);
- }
- DBUG_RETURN(error);
- } /* my_rename */