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-rw-r--r--eth/downloader/downloader.go5
1 files changed, 5 insertions, 0 deletions
diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go
index 0cbf42d30..ba380eca3 100644
--- a/eth/downloader/downloader.go
+++ b/eth/downloader/downloader.go
@@ -65,6 +65,7 @@ type Downloader struct {
// Status
synchronising int32
+ notified int32
// Channels
newPeerCh chan *peer
@@ -128,6 +129,10 @@ func (d *Downloader) Synchronise(id string, hash common.Hash) error {
}
defer atomic.StoreInt32(&d.synchronising, 0)
+ // Post a user notification of the sync (only once per session)
+ if atomic.CompareAndSwapInt32(&d.notified, 0, 1) {
+ glog.V(logger.Info).Infoln("Block synchronisation started")
+ }
// Create cancel channel for aborting mid-flight
d.cancelLock.Lock()
d.cancelCh = make(chan struct{})