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/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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; version 2 of the License.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#include "mysys_priv.h"
#include <my_dir.h>
#include "mysys_err.h"
#include "m_string.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__)
/*
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);
}
else if (MyFlags & MY_SYNC_DIR)
{
#ifdef NEED_EXPLICIT_SYNC_DIR
/* do only the needed amount of syncs: */
char dir_from[FN_REFLEN], dir_to[FN_REFLEN];
size_t dir_from_length, dir_to_length;
dirname_part(dir_from, from, &dir_from_length);
dirname_part(dir_to, to, &dir_to_length);
if (my_sync_dir(dir_from, MyFlags) ||
(strcmp(dir_from, dir_to) &&
my_sync_dir(dir_to, MyFlags)))
error= -1;
#endif
}
DBUG_RETURN(error);
} /* my_rename */
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