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Add a notfound message to getdata that is sent if any transactions that aren't in the relayable set are requested.

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This commit is contained in:
Mike Hearn 2013-01-19 18:48:26 +01:00
parent bd85cf3df7
commit 903d146030
1 changed files with 17 additions and 1 deletions
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18
src/main.cpp
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@ -3244,6 +3244,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
if (fDebugNet || (vInv.size() != 1))
printf("received getdata (%"PRIszu" invsz)\n", vInv.size());
vector<CInv> vNotFound;
BOOST_FOREACH(const CInv& inv, vInv)
{
if (fShutdown)
@ -3316,12 +3317,27 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
ss.reserve(1000);
ss << tx;
pfrom->PushMessage("tx", ss);
pushed = true;
}
}
if (!pushed) {
vNotFound.push_back(inv);
}
}
// Track requests for our stuff
// Track requests for our stuff.
Inventory(inv.hash);
if (!vNotFound.empty()) {
// Let the peer know that we didn't find what it asked for, so it doesn't
// have to wait around forever. Currently only SPV clients actually care
// about this message: it's needed when they are recursively walking the
// dependencies of relevant unconfirmed transactions. SPV clients want to
// do that because they want to know about (and store and rebroadcast and
// risk analyze) the dependencies of transactions relevant to them, without
// having to download the entire memory pool.
pfrom->PushMessage("notfound", vNotFound);
}
}
}