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Always initialize THD::thread_stack: it's used in

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check_stack_overrun().


sql/slave.cc:
  Move initialization of THD::thread_stack before THD::store_globals()
sql/sql_acl.cc:
  Initialize THD::thread_stack in artificial THDs used
  to load gratns subsystem.
sql/sql_class.cc:
  Add an assert that THD::thread_stack is assigned.
sql/sql_insert.cc:
  Add initialization of THD::thread_stack (delayed insert
  thread).
sql/sql_parse.cc:
  Move initialization of THD::thread_stack before
  THD::store_globals().
sql/sql_udf.cc:
  Add initialization for THD::thread_stack (an artificial
  THD used to initialize UDF subsystem).
sql/tztime.cc:
  Add initialization for THD::thread_stack (an artificial
  THD used to initialize timezones).
This commit is contained in:
unknown
2005-11-23 21:18:10 +03:00
parent 4aea839bde
commit 0633a41c15
7 changed files with 17 additions and 2 deletions
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6
sql/sql_parse.cc
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@@ -1097,6 +1097,7 @@ pthread_handler_t handle_one_connection(void *arg)
VOID(sigemptyset(&set)); // Get mask in use
VOID(pthread_sigmask(SIG_UNBLOCK,&set,&thd->block_signals));
#endif
thd->thread_stack= (char*) &thd;
if (thd->store_globals())
{
close_connection(thd, ER_OUT_OF_RESOURCES, 1);
@@ -1110,7 +1111,6 @@ pthread_handler_t handle_one_connection(void *arg)
int error;
NET *net= &thd->net;
Security_context *sctx= thd->security_ctx;
thd->thread_stack= (char*) &thd;
net->no_send_error= 0;
if ((error=check_connection(thd)))
@@ -5288,6 +5288,7 @@ bool check_stack_overrun(THD *thd, long margin,
char *buf __attribute__((unused)))
{
long stack_used;
DBUG_ASSERT(thd == current_thd);
if ((stack_used=used_stack(thd->thread_stack,(char*) &stack_used)) >=
(long) (thread_stack - margin))
{
@@ -6737,7 +6738,10 @@ bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables,
allocate temporary THD for execution of acl_reload()/grant_reload().
*/
if (!thd && (thd= (tmp_thd= new THD)))
{
thd->thread_stack= (char*) &tmp_thd;
thd->store_globals();
}
if (thd)
{
(void)acl_reload(thd);