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Merge #11839: don't attempt mempool entry for wallet transactions on startup if alr…

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6697a70 add test for unconfirmed balance between restarts (Gregory Sanders)
6ba8f30 don't attempt mempool entry for wallet transactions on startup if already in mempool (Gregory Sanders)

Pull request description:

  …eady in mempool

  Mempool loads first, wallet second. Second attempt fails, marking that transaction !fInMempool. Those funds will disappear until confirmation is reached.

Tree-SHA512: 955f0565ec1dc1ba395e0b803a98c07b7cd00c8cac5ec618ed832fed259a856fb7bbbe41310cf6a4e43c0435e09b156109d2a4467d403811dc8379d2caebeede
This commit is contained in:
Wladimir J. van der Laan 2017-12-11 16:12:06 +01:00
parent f60b4ad579 6697a70894
commit 8ab6c0b09e
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GPG key ID: 1E4AED62986CD25D
2 changed files with 12 additions and 1 deletions
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5
src/wallet/wallet.cpp
View file

@ -4114,6 +4114,11 @@ int CMerkleTx::GetBlocksToMaturity() const
bool CWalletTx::AcceptToMemoryPool(const CAmount& nAbsurdFee, CValidationState& state)
{
// Quick check to avoid re-setting fInMempool to false
if (mempool.exists(tx->GetHash())) {
return false;
}
// We must set fInMempool here - while it will be re-set to true by the
// entered-mempool callback, if we did not there would be a race where a
// user could call sendmoney in a loop and hit spurious out of funds errors

8
test/functional/mempool_persist.py
View file

@ -57,21 +57,27 @@ class MempoolPersistTest(BitcoinTestFramework):
self.log.debug("Send 5 transactions from node2 (to its own address)")
for i in range(5):
self.nodes[2].sendtoaddress(self.nodes[2].getnewaddress(), Decimal("10"))
node2_balance = self.nodes[2].getbalance()
self.sync_all()
self.log.debug("Verify that node0 and node1 have 5 transactions in their mempools")
assert_equal(len(self.nodes[0].getrawmempool()), 5)
assert_equal(len(self.nodes[1].getrawmempool()), 5)
self.log.debug("Stop-start node0 and node1. Verify that node0 has the transactions in its mempool and node1 does not.")
self.log.debug("Stop-start the nodes. Verify that node0 has the transactions in its mempool and node1 does not. Verify that node2 calculates its balance correctly after loading wallet transactions.")
self.stop_nodes()
self.start_node(0)
self.start_node(1)
self.start_node(2)
# Give bitcoind a second to reload the mempool
time.sleep(1)
wait_until(lambda: len(self.nodes[0].getrawmempool()) == 5)
wait_until(lambda: len(self.nodes[2].getrawmempool()) == 5)
assert_equal(len(self.nodes[1].getrawmempool()), 0)
# Verify accounting of mempool transactions after restart is correct
assert_equal(node2_balance, self.nodes[2].getbalance())
self.log.debug("Stop-start node0 with -persistmempool=0. Verify that it doesn't load its mempool.dat file.")
self.stop_nodes()
self.start_node(0, extra_args=["-persistmempool=0"])