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Bucket for inbound when scheduling invs to hide tx time

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Gleb
2018-05-21 12:02:40 -07:00
committed by User
parent 287e4edc2f
commit d45b344ffd
4 changed files with 45 additions and 19 deletions
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23
src/net_processing.cpp
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@@ -71,6 +71,21 @@ static const int STALE_RELAY_AGE_LIMIT = 30 * 24 * 60 * 60;
/// limiting block relay. Set to one week, denominated in seconds.
static const int HISTORICAL_BLOCK_AGE = 7 * 24 * 60 * 60;
/** Average delay between local address broadcasts in seconds. */
static constexpr unsigned int AVG_LOCAL_ADDRESS_BROADCAST_INTERVAL = 24 * 60 * 60;
/** Average delay between peer address broadcasts in seconds. */
static const unsigned int AVG_ADDRESS_BROADCAST_INTERVAL = 30;
/** Average delay between trickled inventory transmissions in seconds.
* Blocks and whitelisted receivers bypass this, outbound peers get half this delay. */
static const unsigned int INVENTORY_BROADCAST_INTERVAL = 5;
/** Maximum number of inventory items to send per transmission.
* Limits the impact of low-fee transaction floods. */
static constexpr unsigned int INVENTORY_BROADCAST_MAX = 7 * INVENTORY_BROADCAST_INTERVAL;
/** Average delay between feefilter broadcasts in seconds. */
static constexpr unsigned int AVG_FEEFILTER_BROADCAST_INTERVAL = 10 * 60;
/** Maximum feefilter broadcast delay after significant change. */
static constexpr unsigned int MAX_FEEFILTER_CHANGE_DELAY = 5 * 60;
// Internal stuff
namespace {
/** Number of nodes with fSyncStarted. */
@@ -3496,8 +3511,12 @@ bool PeerLogicValidation::SendMessages(CNode* pto, std::atomic<bool>& interruptM
bool fSendTrickle = pto->fWhitelisted;
if (pto->nNextInvSend < nNow) {
fSendTrickle = true;
// Use half the delay for outbound peers, as there is less privacy concern for them.
pto->nNextInvSend = PoissonNextSend(nNow, INVENTORY_BROADCAST_INTERVAL >> !pto->fInbound);
if (pto->fInbound) {
pto->nNextInvSend = connman->PoissonNextSendInbound(nNow, INVENTORY_BROADCAST_INTERVAL);
} else {
// Use half the delay for outbound peers, as there is less privacy concern for them.
pto->nNextInvSend = PoissonNextSend(nNow, INVENTORY_BROADCAST_INTERVAL >> 1);
}
}
// Time to send but the peer has requested we not relay transactions.