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line.go
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line.go
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package raft
import "sync"
type reqCh struct {
req Request
ch chan Response
}
type line struct {
sync.Mutex
list map[RequestID]reqCh
}
func (l *line) init() {
l.list = make(map[RequestID]reqCh)
}
func (l *line) get(id RequestID) (req Request, ok bool) {
l.Lock()
defer l.Unlock()
rc, ok := l.list[id]
if !ok {
return
}
return rc.req, true
}
func (l *line) wait(id RequestID, req Request) chan Response {
l.Lock()
defer l.Unlock()
if rc, ok := l.list[id]; ok {
return rc.ch
}
ch := make(chan Response, 1)
l.list[id] = reqCh{
req: req,
ch: ch,
}
return ch
}
func (l *line) call(r Response) {
l.Lock()
defer l.Unlock()
if rc, ok := l.list[r.ID]; ok {
rc.ch <- r
delete(l.list, r.ID)
}
}
func (l *line) cancel(id RequestID) {
l.Lock()
defer l.Unlock()
delete(l.list, id)
}