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swarm/network: add lock to seen map in discovery

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This commit is contained in:
zelig 2017-05-18 14:02:10 -07:00
parent 31d9c08d3b
commit 53be4c9e99
1 changed files with 4 additions and 0 deletions
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4
swarm/network/discovery.go
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@ -2,6 +2,7 @@ package network
import ( import (
"fmt" "fmt"
"sync"
"github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/log"
) )
@ -11,6 +12,7 @@ import (
type discPeer struct { type discPeer struct {
*bzzPeer *bzzPeer
overlay Overlay overlay Overlay
mtx sync.Mutex
peers map[string]bool peers map[string]bool
depth uint8 // the proximity radius advertised by remote to subscribe to peers depth uint8 // the proximity radius advertised by remote to subscribe to peers
sentPeers bool // set to true when the peer is first notifed of peers close to them sentPeers bool // set to true when the peer is first notifed of peers close to them
@ -206,6 +208,8 @@ func RequestOrder(k Overlay, order, broadcastSize, maxPeers uint8) {
} }
func (self *discPeer) seen(p OverlayPeer) bool { func (self *discPeer) seen(p OverlayPeer) bool {
self.mtx.Lock()
defer self.mtx.Unlock()
k := string(p.Address()) k := string(p.Address())
if self.peers[k] { if self.peers[k] {
return true return true