diff options
Diffstat (limited to 'eth/downloader/downloader.go')
| -rw-r--r-- | eth/downloader/downloader.go | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go index 290e3b474..2b5dbe952 100644 --- a/eth/downloader/downloader.go +++ b/eth/downloader/downloader.go @@ -26,12 +26,13 @@ const ( ) var ( - errLowTd = errors.New("peer's TD is too low") - errBusy = errors.New("busy") - errUnknownPeer = errors.New("peer's unknown or unhealthy") - errBadPeer = errors.New("action from bad peer ignored") - errTimeout = errors.New("timeout") - errEmptyHashSet = errors.New("empty hash set by peer") + errLowTd = errors.New("peer's TD is too low") + errBusy = errors.New("busy") + errUnknownPeer = errors.New("peer's unknown or unhealthy") + errBadPeer = errors.New("action from bad peer ignored") + errTimeout = errors.New("timeout") + errEmptyHashSet = errors.New("empty hash set by peer") + errPeersUnavailable = errors.New("no peers available or all peers tried for block download process") ) type hashCheckFn func(common.Hash) bool @@ -293,6 +294,15 @@ out: d.queue.put(chunk.hashes) } } + + // make sure that we have peers available for fetching. If all peers have been tried + // and all failed throw an error + if len(availablePeers) > 0 && d.queue.fetchPool.Size() == 0 { + d.queue.reset() + + return errPeersUnavailable + } + } else if len(d.queue.fetching) == 0 { // When there are no more queue and no more `fetching`. We can // safely assume we're done. Another part of the process will check |