From 9d68ccdeb8692b05d9cc0479d8d3757edbc49368 Mon Sep 17 00:00:00 2001
From: Michael Widenius <monty@askmonty.org>
Date: Sun, 7 Nov 2010 14:25:29 +0200
Subject: Added option BACKUP_ALL to mysqld --myisam-recover to also get a
 backup of the index file before it's repaired. Removed wrong call to
 translog_buffer_unlock() that caused 'unlocking not locked mutex' failure in
 Aria log handler.

extra/replace.c:
  Updated call to my_redel()
include/maria.h:
  Updated prototype for maria_change_to_newfile
include/my_sys.h:
  Updated prototypes
  Added my_create_backup_name
include/myisam.h:
  Updated prototypes
include/myisamchk.h:
  Added 'backup_time' to st_handler_check_param to be able to generate same name for backuped data and index file
mysys/my_redel.c:
  Added time_t option to my_redel() to be able to generate same backup extensions for many files
sql/handler.cc:
  Added start_time to st_ha_check_opt
sql/handler.h:
  Added start_time to HA_CHECK_OPT
sql/mysqld.cc:
  Added option BACKUP_ALL to --myisam-recover
storage/maria/ha_maria.cc:
  Remember start time for repair
storage/maria/ma_check.c:
  Use remembered start time for backup file names
  Removed some dead code
storage/maria/ma_loghandler.c:
  Removed wrong call to translog_buffer_unlock() that caused 'unlocking not locked mutex' failure in log handler.
storage/maria/maria_chk.c:
  Removed dead code (O_NEW_INDEX was never set)
  Report if table was 'crashed on repair'
storage/maria/maria_pack.c:
  Updated parameters to my_redel()
storage/myisam/ha_myisam.cc:
  Added recover option BACKUP_ALL to get a backup of the index file before it's repaired.
  Print information to log if we make a backup of data as part of repair.
storage/myisam/ha_myisam.h:
  Added HA_RECOVER_FULL_BACKUP
storage/myisam/mi_check.c:
  Use remembered start time for backup file names
  Added mi_make_backup_of_index()
storage/myisam/myisamchk.c:
  Removed dead code (O_NEW_INDEX was never set)
  Report if table was 'crashed on repair'
storage/myisam/myisampack.c:
  Updated call to my_redel()
---
 mysys/my_redel.c | 33 +++++++++++++++++++++++++--------
 1 file changed, 25 insertions(+), 8 deletions(-)

(limited to 'mysys')

diff --git a/mysys/my_redel.c b/mysys/my_redel.c
index cf0986a7821..2de989a2854 100644
--- a/mysys/my_redel.c
+++ b/mysys/my_redel.c
@@ -40,7 +40,8 @@ struct utimbuf {
 
 #define REDEL_EXT ".BAK"
 
-int my_redel(const char *org_name, const char *tmp_name, myf MyFlags)
+int my_redel(const char *org_name, const char *tmp_name,
+             time_t backup_time_stamp, myf MyFlags)
 {
   int error=1;
   DBUG_ENTER("my_redel");
@@ -51,13 +52,9 @@ int my_redel(const char *org_name, const char *tmp_name, myf MyFlags)
     goto end;
   if (MyFlags & MY_REDEL_MAKE_BACKUP)
   {
-    char name_buff[FN_REFLEN+20];    
-    char ext[20];
-    ext[0]='-';
-    get_date(ext+1,2+4,(time_t) 0);
-    strmov(strend(ext),REDEL_EXT);
-    if (my_rename(org_name, fn_format(name_buff, org_name, "", ext, 2),
-		  MyFlags))
+    char name_buff[FN_REFLEN + MY_BACKUP_NAME_EXTRA_LENGTH];    
+    my_create_backup_name(name_buff, org_name, backup_time_stamp);
+    if (my_rename(org_name, name_buff, MyFlags))
       goto end;
   }
   else if (my_delete_allow_opened(org_name, MyFlags))
@@ -149,3 +146,23 @@ int my_copystat(const char *from, const char *to, int MyFlags)
 #endif
   return 0;
 } /* my_copystat */
+
+
+/**
+   Create a backup file name.
+   @fn my_create_backup_name()
+   @param to	Store new file name here
+   @param from  Original name
+
+   @info
+   The backup name is made by adding -YYMMDDHHMMSS.BAK to the file name
+*/
+
+void my_create_backup_name(char *to, const char *from, time_t backup_start)
+{
+  char ext[MY_BACKUP_NAME_EXTRA_LENGTH+1];
+  ext[0]='-';
+  get_date(ext+1, GETDATE_SHORT_DATE | GETDATE_HHMMSSTIME, backup_start);
+  strmov(strend(ext),REDEL_EXT);
+  strmov(strmov(to, from), ext);
+}
-- 
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