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eth/downloader: fix review issues

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This commit is contained in:
Felix Lange 2017-01-19 13:12:26 +01:00
parent 751754dbdf
commit 22a48fe5e8
1 changed files with 9 additions and 5 deletions
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14
eth/downloader/queue.go
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@ -206,9 +206,12 @@ func (q *queue) PendingReceipts() int {
func (q *queue) PendingNodeData() int {
q.lock.Lock()
defer q.lock.Unlock()
return q.pendingNodeDataLocked()
}
// pendingNodeDataLocked retrieves the number of node data entries pending for retrieval.
// The caller must hold q.lock.
func (q *queue) pendingNodeDataLocked() int {
var n int
if q.stateScheduler != nil {
@ -270,7 +273,6 @@ func (q *queue) Idle() bool {
if q.stateScheduler != nil {
queued += q.stateScheduler.Pending()
}
return (queued + pending + cached) == 0
}
@ -1091,10 +1093,7 @@ func (q *queue) DeliverNodeData(id string, data [][]byte, callback func(int, boo
// scheduler treats everything as written after Process has returned, but it's
// unlikely to be an issue in practice.
batch := q.stateDatabase.NewBatch()
progressed, i, err := q.stateScheduler.Process(process, batch)
if err != nil {
return i, err
}
progressed, _, processErr := q.stateScheduler.Process(process, batch)
q.stateWriters += 1
go func() {
defer func() {
@ -1105,6 +1104,11 @@ func (q *queue) DeliverNodeData(id string, data [][]byte, callback func(int, boo
// waiting for completion of the pivot block's state download.
q.active.Signal()
}()
if processErr != nil {
// Return processing errors through the callback so the sync gets canceled.
callback(len(process), progressed, processErr)
return
}
err := batch.Write()
callback(len(process), progressed, err)
}()