Function reset_sp

lua/sp.c:3106–3146

SP ready to run again

// SP ready to run again
static void reset_sp(SP sp)
{
    if (!sp) return;
    if (sp->lua) {
        lua_gc(sp->lua, LUA_GCCOLLECT, 0);
        drop_temp_tables(sp);
    }
    sp->can_consume = 0;
    sp->in_parent_trans = 0;
    sp->make_parent_trans = 0;
    if (sp->parent == sp) {
        if (sp->clntname) {
            for (int i = 0; i < sp->ntypes; ++i) {
                free(sp->clntname[i]);
                sp->clntname[i] = NULL;
            }
            free(sp->clntname);
            sp->clntname = NULL;
        }
        free(sp->clnttype);
        sp->clnttype = NULL;
    }
    free_tmptbls(sp);
    if (sp->buf) {
        free(sp->buf);
        sp->buf = NULL;
    }
    if (sp->error) {
        free(sp->error);
        sp->error = NULL;
    }
    sp->consumer = NULL;
    sp->pingpong = 0;
    sp->ntypes = 0;
    sp->bufsz = 0;
    sp->rc = 0;
    sp->num_instructions = 0;
    sp->max_num_instructions = gbl_max_lua_instructions;
    LIST_INIT(&sp->dbstmts);
    LIST_INIT(&sp->tmptbls);
}

static void free_spversion(SP sp)
{