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etcdserver: Send and Save

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This commit is contained in:
Blake Mizerany 2014-08-26 13:39:33 -07:00 committed by Yicheng Qin
parent 008337e150
commit 432bc74a58
1 changed files with 13 additions and 19 deletions
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32
etcdserver2/server.go
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@ -17,6 +17,17 @@ type Server struct {
w wait.List
msgsc chan raft.Message
// Send specifies the send function for sending msgs to peers. Send
// MUST NOT block. It is okay to drop messages, since clients should
// timeout and reissue their messages. If Send is nil, Server will
// panic.
Send func(msgs []raft.Message)
// Save specifies the save function for saving ents to stable storage.
// Save MUST block until st and ents are on stable storage. If Send is
// nil, Server will panic.
Save func(st raft.State, ents []raft.Entry)
}
func (s *Server) Run(ctx context.Context) {
@ -26,8 +37,8 @@ func (s *Server) Run(ctx context.Context) {
log.Println("etcdserver: error while reading state -", err)
return
}
s.save(st, ents)
s.send(msgs)
s.Save(st, ents)
s.Send(msgs)
go func() {
for _, e := range cents {
var r Request
@ -58,23 +69,6 @@ func (s *Server) Do(ctx context.Context, r Request) (Response, error) {
}
}
// send sends dispatches msgs to the sending goroutine. If the goroutine is
// busy, it will drop msgs and clients should timeout and reissue.
// TODO: we could use s.w to trigger and error to cancel the clients faster???? Is this a good idea??
func (s *Server) send(msgs []raft.Message) {
for _, m := range msgs {
select {
case s.msgsc <- m:
default:
log.Println("TODO: log dropped message")
}
}
}
func (s *Server) save(st raft.State, ents []raft.Entry) {
panic("not implemented")
}
// apply interprets r as a call to store.X and returns an Response interpreted from store.Event
func (s *Server) apply(r Request) Response {
panic("not implmented")