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Track transaction packages in CTxMemPoolEntry

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Associate with each CTxMemPoolEntry all the size/fees of descendant
mempool transactions.  Sort mempool by max(feerate of entry, feerate
of descendants).  Update statistics on-the-fly as transactions enter
or leave the mempool.

Also add ancestor and descendant limiting, so that transactions can
be rejected if the number or size of unconfirmed ancestors exceeds
a target, or if adding a transaction would cause some other mempool
entry to have too many (or too large) a set of unconfirmed in-
mempool descendants.
This commit is contained in:
Suhas Daftuar
2015-07-15 14:47:45 -04:00
committed by Suhas Daftuar
parent 34628a1807
commit 5add7a74a6
10 changed files with 993 additions and 65 deletions
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6
src/rpcblockchain.cpp
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@@ -191,6 +191,9 @@ UniValue mempoolToJSON(bool fVerbose = false)
info.push_back(Pair("height", (int)e.GetHeight()));
info.push_back(Pair("startingpriority", e.GetPriority(e.GetHeight())));
info.push_back(Pair("currentpriority", e.GetPriority(chainActive.Height())));
info.push_back(Pair("descendantcount", e.GetCountWithDescendants()));
info.push_back(Pair("descendantsize", e.GetSizeWithDescendants()));
info.push_back(Pair("descendantfees", e.GetFeesWithDescendants()));
const CTransaction& tx = e.GetTx();
set<string> setDepends;
BOOST_FOREACH(const CTxIn& txin, tx.vin)
@@ -245,6 +248,9 @@ UniValue getrawmempool(const UniValue& params, bool fHelp)
" \"height\" : n, (numeric) block height when transaction entered pool\n"
" \"startingpriority\" : n, (numeric) priority when transaction entered pool\n"
" \"currentpriority\" : n, (numeric) transaction priority now\n"
" \"descendantcount\" : n, (numeric) number of in-mempool descendant transactions (including this one)\n"
" \"descendantsize\" : n, (numeric) size of in-mempool descendants (including this one)\n"
" \"descendantfees\" : n, (numeric) fees of in-mempool descendants (including this one)\n"
" \"depends\" : [ (array) unconfirmed transactions used as inputs for this transaction\n"
" \"transactionid\", (string) parent transaction id\n"
" ... ]\n"