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e8a25c95d3
losing it's .MYD When OPTIMIZE TABLE is completed it attempts to rename temporary file to original name. This step may fail on windows when a file is opened. As a result data file might be deleted and optimized copy of file (table_name.MYD) remains. This situation is handled properly by my_delete_allow_opened, so use it instead of my_delete when attempting to rename a file on windows. No suitable test case for this bug. mysys/my_redel.c: Attempting to delete an opened file and to immediately create a new one with the same name may result in my_redel failure on windows. It may fail because file is not deleted until it is closed. This situation is handled properly by my_delete_allow_opened, so use it instead of my_delete.
121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#define USES_TYPES /* sys/types is included */
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#include "mysys_priv.h"
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#include <my_dir.h>
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#include <m_string.h>
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#include "mysys_err.h"
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#if defined(HAVE_UTIME_H)
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#include <utime.h>
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#elif defined(HAVE_SYS_UTIME_H)
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#include <sys/utime.h>
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#elif !defined(HPUX10)
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struct utimbuf {
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time_t actime;
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time_t modtime;
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};
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#endif
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/*
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Rename with copy stat form old file
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Copy stats from old file to new file, deletes orginal and
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changes new file name to old file name
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if MY_REDEL_MAKE_COPY is given, then the orginal file
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is renamed to org_name-'current_time'.BAK
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*/
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#define REDEL_EXT ".BAK"
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int my_redel(const char *org_name, const char *tmp_name, myf MyFlags)
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{
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int error=1;
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DBUG_ENTER("my_redel");
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DBUG_PRINT("my",("org_name: '%s' tmp_name: '%s' MyFlags: %d",
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org_name,tmp_name,MyFlags));
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if (my_copystat(org_name,tmp_name,MyFlags) < 0)
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goto end;
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if (MyFlags & MY_REDEL_MAKE_BACKUP)
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{
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char name_buff[FN_REFLEN+20];
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char ext[20];
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ext[0]='-';
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get_date(ext+1,2+4,(time_t) 0);
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strmov(strend(ext),REDEL_EXT);
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if (my_rename(org_name, fn_format(name_buff, org_name, "", ext, 2),
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MyFlags))
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goto end;
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}
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else if (my_delete_allow_opened(org_name, MyFlags))
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goto end;
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if (my_rename(tmp_name,org_name,MyFlags))
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goto end;
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error=0;
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end:
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DBUG_RETURN(error);
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} /* my_redel */
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/* Copy stat from one file to another */
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/* Return -1 if can't get stat, 1 if wrong type of file */
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int my_copystat(const char *from, const char *to, int MyFlags)
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{
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struct stat statbuf;
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if (stat((char*) from, &statbuf))
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{
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my_errno=errno;
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if (MyFlags & (MY_FAE+MY_WME))
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my_error(EE_STAT, MYF(ME_BELL+ME_WAITTANG),from,errno);
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return -1; /* Can't get stat on input file */
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}
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if ((statbuf.st_mode & S_IFMT) != S_IFREG)
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return 1;
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VOID(chmod(to, statbuf.st_mode & 07777)); /* Copy modes */
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#if !defined(MSDOS) && !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
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if (statbuf.st_nlink > 1 && MyFlags & MY_LINK_WARNING)
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{
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if (MyFlags & MY_LINK_WARNING)
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my_error(EE_LINK_WARNING,MYF(ME_BELL+ME_WAITTANG),from,statbuf.st_nlink);
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}
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VOID(chown(to, statbuf.st_uid, statbuf.st_gid)); /* Copy ownership */
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#endif /* MSDOS */
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#ifndef VMS
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#ifndef __ZTC__
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if (MyFlags & MY_COPYTIME)
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{
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struct utimbuf timep;
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timep.actime = statbuf.st_atime;
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timep.modtime = statbuf.st_mtime;
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VOID(utime((char*) to, &timep));/* Update last accessed and modified times */
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}
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#else
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if (MyFlags & MY_COPYTIME)
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{
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time_t time[2];
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time[0]= statbuf.st_atime;
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time[1]= statbuf.st_mtime;
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VOID(utime((char*) to, time));/* Update last accessed and modified times */
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}
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#endif
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#endif
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return 0;
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} /* my_copystat */
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