Fixes acceptors exiting in case of broken pipe signal.
Fixes acceptors exiting in case of broken pipe signal.

tyh20082000/libpaxos,tyh20082000/libpaxos,tudang/paxosudp,tudang/paxosudp,tudang/paxosudp,tudang/paxosudp,tudang/paxosudp,tyh20082000/libpaxos,tudang/paxosudp,tyh20082000/libpaxos