macro_rules! fwd_to_slave {
(@@@$ops_id: expr, $req: expr, $peeraddr: expr, $cb: tt, $addr_set: expr) => { ... };
(@@$ops_id: expr, $req: expr, $peeraddr: expr, $cb: tt, $addr_set: expr) => { ... };
(@$ops_id: expr, $orig_req: expr, $req_kind: ty, $peeraddr: expr, $cb: tt) => { ... };
($ops_id: expr, $orig_req: expr, $req_kind: ty, $peeraddr: expr) => { ... };
}
将客户端的请求,
分发至后台的各个 Slave Server.