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Peer: drop out of fast catchup mode when reaching the top of the chain.

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This bug could cause problems if you sync a wallet containing no keys, and then a chain fork happens (you won't follow the fork).
This commit is contained in:
Mike Hearn 2013-07-23 20:10:57 +02:00
parent 2acbd55d47
commit 81a9e1e893
1 changed files with 6 additions and 1 deletions
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7
core/src/main/java/com/google/bitcoin/core/Peer.java
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@ -422,7 +422,12 @@ public class Peer {
checkState(!downloadBlockBodies, toString()); checkState(!downloadBlockBodies, toString());
for (int i = 0; i < m.getBlockHeaders().size(); i++) { for (int i = 0; i < m.getBlockHeaders().size(); i++) {
Block header = m.getBlockHeaders().get(i); Block header = m.getBlockHeaders().get(i);
if (header.getTimeSeconds() < fastCatchupTimeSecs) { // Process headers until we pass the fast catchup time, or are about to catch up with the head
// of the chain - always process the last block as a full/filtered block to kick us out of the
// fast catchup mode (in which we ignore new blocks).
boolean passedTime = header.getTimeSeconds() >= fastCatchupTimeSecs;
boolean reachedTop = blockChain.getBestChainHeight() >= vPeerVersionMessage.bestHeight;
if (!passedTime && !reachedTop) {
if (!vDownloadData) { if (!vDownloadData) {
// Not download peer anymore, some other peer probably became better. // Not download peer anymore, some other peer probably became better.
log.info("Lost download peer status, throwing away downloaded headers."); log.info("Lost download peer status, throwing away downloaded headers.");