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Fixes bug #17595. UDFs are not initialized when running mysqld with

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--skip-grant-tables. However when deleting functions UDFs list was checked
regardless of whther UDFs are initialized or not. Additional check is added
into free_udf() and find_udf() functions to prevent possible runtime errors.
This commit is contained in:
SergeyV@selena.
2006-02-27 16:27:34 +03:00
parent 44a2855382
commit 78b33e1835
3 changed files with 15 additions and 2 deletions
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7
sql/sql_udf.cc
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@ -308,6 +308,10 @@ static void del_udf(udf_func *udf)
void free_udf(udf_func *udf)
{
DBUG_ENTER("free_udf");
if (!initialized)
DBUG_VOID_RETURN;
rw_wrlock(&THR_LOCK_udf);
if (!--udf->usage_count)
{
@ -332,6 +336,9 @@ udf_func *find_udf(const char *name,uint length,bool mark_used)
udf_func *udf=0;
DBUG_ENTER("find_udf");
if (!initialized)
DBUG_RETURN(NULL);
/* TODO: This should be changed to reader locks someday! */
if (mark_used)
rw_wrlock(&THR_LOCK_udf); /* Called during fix_fields */