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rafthttp: add "ActivePeers" to "Transport"

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Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
This commit is contained in:
Gyuho Lee 2018-03-10 17:26:15 -08:00
parent 9e84f2d4e8
commit 29d9543850
2 changed files with 18 additions and 0 deletions
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1
etcdserver/util_test.go
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@ -83,6 +83,7 @@ func (s *nopTransporterWithActiveTime) RemovePeer(id types.ID) {}
func (s *nopTransporterWithActiveTime) RemoveAllPeers() {}
func (s *nopTransporterWithActiveTime) UpdatePeer(id types.ID, us []string) {}
func (s *nopTransporterWithActiveTime) ActiveSince(id types.ID) time.Time { return s.activeMap[id] }
func (s *nopTransporterWithActiveTime) ActivePeers() int { return 0 }
func (s *nopTransporterWithActiveTime) Stop() {}
func (s *nopTransporterWithActiveTime) Pause() {}
func (s *nopTransporterWithActiveTime) Resume() {}

17
rafthttp/transport.go
View File

@ -85,6 +85,8 @@ type Transporter interface {
// If the connection is active since peer was added, it returns the adding time.
// If the connection is currently inactive, it returns zero time.
ActiveSince(id types.ID) time.Time
// ActivePeers returns the number of active peers.
ActivePeers() int
// Stop closes the connections and stops the transporter.
Stop()
}
@ -375,6 +377,20 @@ func (t *Transport) Resume() {
}
}
// ActivePeers returns a channel that closes when an initial
// peer connection has been established. Use this to wait until the
// first peer connection becomes active.
func (t *Transport) ActivePeers() (cnt int) {
t.mu.RLock()
defer t.mu.RUnlock()
for _, p := range t.peers {
if !p.activeSince().IsZero() {
cnt++
}
}
return cnt
}
type nopTransporter struct{}
func NewNopTransporter() Transporter {
@ -391,6 +407,7 @@ func (s *nopTransporter) RemovePeer(id types.ID) {}
func (s *nopTransporter) RemoveAllPeers() {}
func (s *nopTransporter) UpdatePeer(id types.ID, us []string) {}
func (s *nopTransporter) ActiveSince(id types.ID) time.Time { return time.Time{} }
func (s *nopTransporter) ActivePeers() int { return 0 }
func (s *nopTransporter) Stop() {}
func (s *nopTransporter) Pause() {}
func (s *nopTransporter) Resume() {}