my_rename.cc

/* Copyright (c) 2000, 2015, 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 */

/**
  @file mysys/my_rename.c
*/

#include "mysys_priv.h"
#include "my_sys.h"
#include <my_dir.h>
#include "mysys_err.h"
#include "m_string.h"
#include "my_thread_local.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(_WIN32)
  if(!MoveFileEx(from, to, MOVEFILE_COPY_ALLOWED|
                           MOVEFILE_REPLACE_EXISTING))
  {
    my_osmaperr(GetLastError());
#else
  if (rename(from,to))
  {
#endif
    set_my_errno(errno);
    error = -1;
    if (MyFlags & (MY_FAE+MY_WME))
    {
      char errbuf[MYSYS_STRERROR_SIZE];
      my_error(EE_LINK, MYF(0), from, to,
               my_errno(), my_strerror(errbuf, sizeof(errbuf), my_errno()));
    }
  }
  else if (MyFlags & MY_SYNC_DIR)
  {
    /* do only the needed amount of syncs: */
    if (my_sync_dir_by_file(from, MyFlags) ||
        (strcmp(from, to) &&
         my_sync_dir_by_file(to, MyFlags)))
      error= -1;
  }
  DBUG_RETURN(error);
} /* my_rename */