#pragma once #include "my_dbug.h" #ifndef DBUG_OFF char *dbug_mariabackup_get_val(const char *event, fil_space_t::name_type key); /* In debug mode, execute SQL statement that was passed via environment. To use this facility, you need to 1. Add code DBUG_EXECUTE_MARIABACKUP_EVENT("my_event_name", key);); to the code. key is usually a table name 2. Set environment variable my_event_name_$key SQL statement you want to execute when event occurs, in DBUG_EXECUTE_IF from above. In mtr , you can set environment via 'let' statement (do not use $ as the first char for the variable) 3. start mariabackup with --dbug=+d,debug_mariabackup_events */ #define DBUG_EXECUTE_FOR_KEY(EVENT, KEY, CODE) \ DBUG_EXECUTE_IF("mariabackup_inject_code", \ { char *dbug_val= dbug_mariabackup_get_val(EVENT, KEY); \ if (dbug_val) CODE }) #else #define DBUG_EXECUTE_FOR_KEY(EVENT, KEY, CODE) #endif