thrift/server: Retry accept in case of error
thrift/server: Retry accept in case of error

In case of errors like ECONNABORTED, we want to retry accepting
connections. Right now we immediately retry the accept, but in
subsequent patches we introduce a backoff for other types of errors.

We also consider fatal errors like EBADFD, which should not trigger a
retry.

Signed-off-by: Duarte Nunes <a60e8b7496f7715d71354fe4c06dd24017025bf1@scylladb.com>

scylladb/scylla,scylladb/scylla,avikivity/scylla,scylladb/scylla,duarten/scylla,duarten/scylla,duarten/scylla,scylladb/scylla,avikivity/scylla,avikivity/scylla