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A pre-requisite patch for the fix for Bug#52044.

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Implement a few simple asserts in my_rwlock_t locks.

include/my_pthread.h:
  Declare two simple assert functions.
include/mysql/psi/mysql_thread.h:
  Add wrappers for new assert functions.
mysys/thr_rwlock.c:
  Add asserts.
sql/sql_base.cc:
  Silence a compiler warning for the case when
  SAFE_MUTEX is not ON.
This commit is contained in:
Konstantin Osipov
2010-08-11 01:12:01 +04:00
parent 64cc044e33
commit 265a6edd23
4 changed files with 48 additions and 0 deletions
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2
sql/sql_base.cc
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@ -8654,7 +8654,9 @@ void tdc_remove_table(THD *thd, enum_tdc_remove_table_type remove_type,
if (! has_lock)
mysql_mutex_lock(&LOCK_open);
else
{
mysql_mutex_assert_owner(&LOCK_open);
}
DBUG_ASSERT(remove_type == TDC_RT_REMOVE_UNUSED ||
thd->mdl_context.is_lock_owner(MDL_key::TABLE, db, table_name,