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Bug #38883 (reopened): thd_security_context is not thread safe, crashes?

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manual merge 5.0-->5.1, updating InnoDB plugin.
This commit is contained in:
Gleb Shchepa
2009-12-01 14:38:40 +04:00
parent 0b7c514e1e 5f31dbdc11
commit b2fc91147a
11 changed files with 9 additions and 139 deletions
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5
sql/sql_class.cc
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@@ -376,6 +376,8 @@ char *thd_security_context(THD *thd, char *buffer, unsigned int length,
str.append(proc_info);
}
pthread_mutex_lock(&thd->LOCK_thd_data);
if (thd->query())
{
if (max_query_len < 1)
@@ -385,6 +387,9 @@ char *thd_security_context(THD *thd, char *buffer, unsigned int length,
str.append('\n');
str.append(thd->query(), len);
}
pthread_mutex_unlock(&thd->LOCK_thd_data);
if (str.c_ptr_safe() == buffer)
return buffer;