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eth/downloader: implement concurrent header downloads

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This commit is contained in:
Péter Szilágyi
2016-02-25 18:36:42 +02:00
parent fe532a98f9
commit b40dc8a1da
4 changed files with 584 additions and 211 deletions
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47
eth/downloader/downloader_test.go
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@ -560,8 +560,8 @@ func (dl *downloadTester) peerGetAbsHeadersFn(id string, delay time.Duration) fu
hashes := dl.peerHashes[id]
headers := dl.peerHeaders[id]
result := make([]*types.Header, 0, amount)
for i := 0; i < amount && len(hashes)-int(origin)-1-i >= 0; i++ {
if header, ok := headers[hashes[len(hashes)-int(origin)-1-i]]; ok {
for i := 0; i < amount && len(hashes)-int(origin)-1-i*(skip+1) >= 0; i++ {
if header, ok := headers[hashes[len(hashes)-int(origin)-1-i*(skip+1)]]; ok {
result = append(result, header)
}
}
@ -1348,27 +1348,28 @@ func testBlockHeaderAttackerDropping(t *testing.T, protocol int) {
result error
drop bool
}{
{nil, false}, // Sync succeeded, all is well
{errBusy, false}, // Sync is already in progress, no problem
{errUnknownPeer, false}, // Peer is unknown, was already dropped, don't double drop
{errBadPeer, true}, // Peer was deemed bad for some reason, drop it
{errStallingPeer, true}, // Peer was detected to be stalling, drop it
{errNoPeers, false}, // No peers to download from, soft race, no issue
{errTimeout, true}, // No hashes received in due time, drop the peer
{errEmptyHashSet, true}, // No hashes were returned as a response, drop as it's a dead end
{errEmptyHeaderSet, true}, // No headers were returned as a response, drop as it's a dead end
{errPeersUnavailable, true}, // Nobody had the advertised blocks, drop the advertiser
{errInvalidAncestor, true}, // Agreed upon ancestor is not acceptable, drop the chain rewriter
{errInvalidChain, true}, // Hash chain was detected as invalid, definitely drop
{errInvalidBlock, false}, // A bad peer was detected, but not the sync origin
{errInvalidBody, false}, // A bad peer was detected, but not the sync origin
{errInvalidReceipt, false}, // A bad peer was detected, but not the sync origin
{errCancelHashFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelBlockFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelHeaderFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelBodyFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelReceiptFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelProcessing, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{nil, false}, // Sync succeeded, all is well
{errBusy, false}, // Sync is already in progress, no problem
{errUnknownPeer, false}, // Peer is unknown, was already dropped, don't double drop
{errBadPeer, true}, // Peer was deemed bad for some reason, drop it
{errStallingPeer, true}, // Peer was detected to be stalling, drop it
{errNoPeers, false}, // No peers to download from, soft race, no issue
{errTimeout, true}, // No hashes received in due time, drop the peer
{errEmptyHashSet, true}, // No hashes were returned as a response, drop as it's a dead end
{errEmptyHeaderSet, true}, // No headers were returned as a response, drop as it's a dead end
{errPeersUnavailable, true}, // Nobody had the advertised blocks, drop the advertiser
{errInvalidAncestor, true}, // Agreed upon ancestor is not acceptable, drop the chain rewriter
{errInvalidChain, true}, // Hash chain was detected as invalid, definitely drop
{errInvalidBlock, false}, // A bad peer was detected, but not the sync origin
{errInvalidBody, false}, // A bad peer was detected, but not the sync origin
{errInvalidReceipt, false}, // A bad peer was detected, but not the sync origin
{errCancelHashFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelBlockFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelHeaderFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelBodyFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelReceiptFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelHeaderProcessing, false}, // Synchronisation was canceled, origin may be innocent, don't drop
{errCancelContentProcessing, false}, // Synchronisation was canceled, origin may be innocent, don't drop
}
// Run the tests and check disconnection status
tester := newTester()