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lnpeer+peer: use importable lnpeer.ErrPeerExiting

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As a prepatory step to making gossip replies synchronous, we will move
the ErrPeerExiting error into the lnpeer package so that it can be
imported by the discovery package. With synchronous sends, this error
can now be detected and handled by goroutines in the syncer, and cause
them to exit instead of continue to sending backlogs.
This commit is contained in:
Conner Fromknecht 2019-04-26 17:31:27 -07:00
parent 23d10336c2
commit ca358e9673
No known key found for this signature in database
GPG Key ID: E7D737B67FA592C7
2 changed files with 14 additions and 9 deletions
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8
lnpeer/errors.go Normal file
View File

@ -0,0 +1,8 @@
package lnpeer
import "fmt"
var (
// ErrPeerExiting signals that the peer received a disconnect request.
ErrPeerExiting = fmt.Errorf("peer exiting")
)

15
peer.go
View File

@ -32,9 +32,6 @@ import (
var ( var (
numNodes int32 numNodes int32
// ErrPeerExiting signals that the peer received a disconnect request.
ErrPeerExiting = fmt.Errorf("peer exiting")
) )
const ( const (
@ -1411,7 +1408,7 @@ func (p *peer) logWireMessage(msg lnwire.Message, read bool) {
func (p *peer) writeMessage(msg lnwire.Message) error { func (p *peer) writeMessage(msg lnwire.Message) error {
// Simply exit if we're shutting down. // Simply exit if we're shutting down.
if atomic.LoadInt32(&p.disconnect) != 0 { if atomic.LoadInt32(&p.disconnect) != 0 {
return ErrPeerExiting return lnpeer.ErrPeerExiting
} }
// Only log the message on the first attempt. // Only log the message on the first attempt.
@ -1559,7 +1556,7 @@ out:
} }
case <-p.quit: case <-p.quit:
exitErr = ErrPeerExiting exitErr = lnpeer.ErrPeerExiting
break out break out
} }
} }
@ -1691,7 +1688,7 @@ func (p *peer) queue(priority bool, msg lnwire.Message, errChan chan error) {
case <-p.quit: case <-p.quit:
peerLog.Tracef("Peer shutting down, could not enqueue msg.") peerLog.Tracef("Peer shutting down, could not enqueue msg.")
if errChan != nil { if errChan != nil {
errChan <- ErrPeerExiting errChan <- lnpeer.ErrPeerExiting
} }
} }
} }
@ -2504,7 +2501,7 @@ func (p *peer) sendMessage(sync, priority bool, msgs ...lnwire.Message) error {
case err := <-errChan: case err := <-errChan:
return err return err
case <-p.quit: case <-p.quit:
return ErrPeerExiting return lnpeer.ErrPeerExiting
} }
} }
@ -2550,7 +2547,7 @@ func (p *peer) AddNewChannel(channel *channeldb.OpenChannel,
case <-cancel: case <-cancel:
return errors.New("canceled adding new channel") return errors.New("canceled adding new channel")
case <-p.quit: case <-p.quit:
return ErrPeerExiting return lnpeer.ErrPeerExiting
} }
// We pause here to wait for the peer to recognize the new channel // We pause here to wait for the peer to recognize the new channel
@ -2559,7 +2556,7 @@ func (p *peer) AddNewChannel(channel *channeldb.OpenChannel,
case err := <-errChan: case err := <-errChan:
return err return err
case <-p.quit: case <-p.quit:
return ErrPeerExiting return lnpeer.ErrPeerExiting
} }
} }