diff options
Diffstat (limited to 'sql/sql_class.cc')
| -rw-r--r-- | sql/sql_class.cc | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/sql/sql_class.cc b/sql/sql_class.cc index cf5fdcf27a7..a853ad103ea 100644 --- a/sql/sql_class.cc +++ b/sql/sql_class.cc @@ -674,31 +674,40 @@ THD::THD() void THD::push_internal_handler(Internal_error_handler *handler) { - /* - TODO: The current implementation is limited to 1 handler at a time only. - THD and sp_rcontext need to be modified to use a common handler stack. - */ - DBUG_ASSERT(m_internal_handler == NULL); - m_internal_handler= handler; + if (m_internal_handler) + { + handler->m_prev_internal_handler= m_internal_handler; + m_internal_handler= handler; + } + else + { + m_internal_handler= handler; + } } bool THD::handle_error(uint sql_errno, const char *message, MYSQL_ERROR::enum_warning_level level) { - if (m_internal_handler) + if (!m_internal_handler) + return FALSE; + + for (Internal_error_handler *error_handler= m_internal_handler; + error_handler; + error_handler= m_internal_handler->m_prev_internal_handler) { - return m_internal_handler->handle_error(sql_errno, message, level, this); + if (error_handler->handle_error(sql_errno, message, level, this)) + return TRUE; } - return FALSE; // 'FALSE', as per coding style + return FALSE; } void THD::pop_internal_handler() { DBUG_ASSERT(m_internal_handler != NULL); - m_internal_handler= NULL; + m_internal_handler= m_internal_handler->m_prev_internal_handler; } extern "C" |