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authorunknown <monty@narttu.mysql.fi>2003-06-24 12:10:35 +0300
committerunknown <monty@narttu.mysql.fi>2003-06-24 12:10:35 +0300
commitfff1f663c2d55faa57aaeae29df11515772c1b0b (patch)
tree415b1821c33eac5fc78fcb02664dfd546daa9406 /myisam/mi_preload.c
parent01450dbb79540c01e6b0381ce0760418dcdfc133 (diff)
downloadmariadb-git-fff1f663c2d55faa57aaeae29df11515772c1b0b.tar.gz
Fixed some new memory leaks
Updated VC++ files VC++Files/client/mysql.dsp: Update of VC++ files VC++Files/client/mysqlclient.dsp: Update of VC++ files VC++Files/libmysqld/examples/test_libmysqld.dsp: Update of VC++ files VC++Files/libmysqld/libmysqld.def: Update of VC++ files VC++Files/libmysqld/libmysqld.dsp: Update of VC++ files VC++Files/myisam/myisam.dsp: Update of VC++ files VC++Files/mysql.dsw: Update of VC++ files VC++Files/sql/mysqld.dsp: Update of VC++ files include/mysql.h: Add missing client functions to embedded server libmysql/libmysql.def: sort functions to enable comparison with libmysqld.def libmysqld/libmysqld.c: Add missing client functions to embedded server libmysqld/libmysqld.def: sort functions to enable comparison with libmysql.def Added missing functions myisam/mi_preload.c: Fixed compiler warning. Small code cleanup scripts/make_win_src_distribution.sh: Fixed typo Don't run zip in verbose mode scripts/mysql_create_system_tables.sh: Change so that localhost has full access (to make this like 4.0) scripts/mysql_fix_privilege_tables.sh: Allow on to run this from the source distribution sql-common/client.c: Fixed memory leak sql/item_sum.cc: Removed compiler warning sql/slave.cc: Cleanup sql/sql_client.cc: Portability fix sql/sql_help.cc: Fixed memory leak
Diffstat (limited to 'myisam/mi_preload.c')
-rw-r--r--myisam/mi_preload.c22
1 files changed, 9 insertions, 13 deletions
diff --git a/myisam/mi_preload.c b/myisam/mi_preload.c
index be45be66ecf..a5d9bec160e 100644
--- a/myisam/mi_preload.c
+++ b/myisam/mi_preload.c
@@ -42,35 +42,32 @@
int mi_preload(MI_INFO *info, ulonglong key_map, my_bool ignore_leaves)
{
uint i;
- uint length;
- uint block_length= 0;
+ ulong length, block_length= 0;
uchar *buff= NULL;
MYISAM_SHARE* share= info->s;
uint keys= share->state.header.keys;
MI_KEYDEF *keyinfo= share->keyinfo;
my_off_t key_file_length= share->state.state.key_file_length;
my_off_t pos= share->base.keystart;
+ DBUG_ENTER("mi_preload");
if (!keys || !key_map || key_file_length == pos)
- return 0;
+ DBUG_RETURN(0);
block_length= keyinfo[0].block_length;
- if (!key_map)
- return 0;
-
/* Check whether all indexes use the same block size */
for (i= 1 ; i < keys ; i++)
{
if (keyinfo[i].block_length != block_length)
- return (my_errno= HA_ERR_NON_UNIQUE_BLOCK_SIZE);
+ DBUG_RETURN(my_errno= HA_ERR_NON_UNIQUE_BLOCK_SIZE);
}
length= info->preload_buff_size/block_length * block_length;
set_if_bigger(length, block_length);
if (!(buff= (uchar *) my_malloc(length, MYF(MY_WME))))
- return (my_errno= HA_ERR_OUT_OF_MEM);
+ DBUG_RETURN(my_errno= HA_ERR_OUT_OF_MEM);
if (flush_key_blocks(share->kfile, FLUSH_RELEASE))
goto err;
@@ -78,7 +75,8 @@ int mi_preload(MI_INFO *info, ulonglong key_map, my_bool ignore_leaves)
do
{
/* Read the next block of index file into the preload buffer */
- set_if_smaller(length, key_file_length-pos);
+ if ((my_off_t) length > (key_file_length-pos))
+ length= (ulong) (key_file_length-pos);
if (my_pread(share->kfile, (byte*) buff, length, pos, MYF(MY_FAE)))
goto err;
@@ -103,16 +101,14 @@ int mi_preload(MI_INFO *info, ulonglong key_map, my_bool ignore_leaves)
goto err;
pos+= length;
}
-
}
while (pos != key_file_length);
my_free(buff, MYF(0));
-
- return 0;
+ DBUG_RETURN(0);
err:
my_free(buff, MYF(MY_ALLOW_ZERO_PTR));
- return (my_errno= errno);
+ DBUG_RETURN(my_errno= errno);
}