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Change download logic to allow calling getheaders/getdata on inbound peers

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SendMessages will now call getheaders on both inbound and outbound peers,
once the headers chain is close to synced.  It will also try downloading
blocks from inbound peers once we're out of initial block download (so
inbound peers will participate in parallel block fetching for the last day
or two of blocks being downloaded).
This commit is contained in:
Suhas Daftuar 2015-01-12 09:55:48 -05:00
parent 446bb70fcd
commit 00dcaf4beb
1 changed files with 3 additions and 3 deletions
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6
src/main.cpp
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@ -4459,9 +4459,9 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
if (pindexBestHeader == NULL)
pindexBestHeader = chainActive.Tip();
bool fFetch = state.fPreferredDownload || (nPreferredDownload == 0 && !pto->fClient && !pto->fOneShot); // Download if this is a nice peer, or we have no nice peers and this one might do.
if (!state.fSyncStarted && !pto->fClient && fFetch && !fImporting && !fReindex) {
if (!state.fSyncStarted && !pto->fClient && !fImporting && !fReindex) {
// Only actively request headers from a single peer, unless we're close to today.
if (nSyncStarted == 0 || pindexBestHeader->GetBlockTime() > GetAdjustedTime() - 24 * 60 * 60) {
if ((nSyncStarted == 0 && fFetch) || pindexBestHeader->GetBlockTime() > GetAdjustedTime() - 24 * 60 * 60) {
state.fSyncStarted = true;
nSyncStarted++;
CBlockIndex *pindexStart = pindexBestHeader->pprev ? pindexBestHeader->pprev : pindexBestHeader;
@ -4549,7 +4549,7 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
// Message: getdata (blocks)
//
vector<CInv> vGetData;
if (!pto->fDisconnect && !pto->fClient && fFetch && state.nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) {
if (!pto->fDisconnect && !pto->fClient && (fFetch || !IsInitialBlockDownload()) && state.nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) {
vector<CBlockIndex*> vToDownload;
NodeId staller = -1;
FindNextBlocksToDownload(pto->GetId(), MAX_BLOCKS_IN_TRANSIT_PER_PEER - state.nBlocksInFlight, vToDownload, staller);