dispatch_connection: read per block not to lock up one thread per connection
dispatch_connection: read per block not to lock up one thread per connection

piotr1212/carbon-c-relay,lyft/carbon-c-relay,lyft/carbon-c-relay,tjamesturner/carbon-c-relay,grobian/carbon-c-relay,piotr1212/carbon-c-relay,grobian/carbon-c-relay,grobian/carbon-c-relay,piotr1212/carbon-c-relay,piotr1212/carbon-c-relay,tjamesturner/carbon-c-relay,Skyscanner/carbon-c-relay,zzl0/carbon-c-relay,Skyscanner/carbon-c-relay,zzl0/carbon-c-relay,lyft/carbon-c-relay,rtoma/carbon-c-relay,rtoma/carbon-c-relay