writing my own module

[The-Git-Rain]

I couldn't connect any module with my module using ->,but I can connect my module with other module using->.
when connect other modules with mine like this,
drr1->fb(this is mine)
it shows error like this
localhost:10514 $ run testing/test
Done.
localhost:10514 $ monitor pipeline
*** Error: BESS daemon not connected
the daemon is not connected
how can i fix it

[The-Git-Rain]

it's because the struct i return
return {.block = false,.packets = (uint32_t) cnt,.bits = (total_bytes) * 8};
but block is false,how could the daemon be killed