* Split up remaining logic from CMasternodeMan into CMasternodeMetaMan and CMasternodeUtils
Also get rid of CMastermode and store remaining meta info
in CMasternodeMetaInfo
* Also allow non-const T in Serialize/Unserialize for shared_ptr
* Rename CActiveDeterministicMasternodeManager to CActiveMasternodeManager
* Fix nowallet compile in masternode-utils.cpp
* Merge #9744: Remove unused module from rpc-tests
a432aa0 Remove unused module from rpc-tests (Takashi Mitsuta)
* Merge #9696: [trivial] Fix recently introduced typos in comments
0c9b9b7 [trivial] Fix recently introduced typos in comments (practicalswift)
* Merge #9657: Improve rpc-tests.py
a6a3e58 Various review markups for rpc-tests.py improvements (John Newbery)
3de3ccd Refactor rpc-tests.py (John Newbery)
afd38e7 Improve rpc-tests.py arguments (John Newbery)
91bffff Use argparse in rpc_tests.py (John Newbery)
1581ecb Use configparser in rpc-tests.py (John Newbery)
* Merge #9724: Qt/Intro: Add explanation of IBD process
f6d18f5 Qt/Intro: Explain a bit more what will happen first time (Luke Dashjr)
50c5657 Qt/Intro: Storage shouldn't grow significantly with pruning enabled (Luke Dashjr)
9adb694 Qt/Intro: Move sizeWarningLabel text into C++ code (Luke Dashjr)
* Merge #9794: Minor update to qrencode package builder
1bfe6b4 Use package name variable inside $(package)_file_name variable (Mitchell Cash)
* Merge #9726: netbase: Do not print an error on connection timeouts through proxy
3ddfe29 netbase: Do not print an error on connection timeouts through proxy (Wladimir J. van der Laan)
13f6085 netbase: Make InterruptibleRecv return an error code instead of bool (Wladimir J. van der Laan)
* Merge #9727: Remove fallbacks for boost_filesystem < v3
056aba2 Remove fallbacks for boost_filesystem < v3 (Wladimir J. van der Laan)
* Merge #9485: ZMQ example using python3 and asyncio
b471daf Adddress nits, use asyncio signal handling, create_task (Bob McElrath)
4bb7d1b Add python version checks and 3.4 example (Bob McElrath)
5406d51 Rewrite to not use Polling wrapper for asyncio, link to python2.7 example (Bob McElrath)
5ea5368 ZMQ example using python3 and asyncio (Bob McElrath)
* Merge #9807: RPC doc fix-ups.
851f6a3 [qa][doc] Correct rpc test options in readme (fanquake)
41e7219 [trivial] Add tests_config.ini to .gitignore (fanquake)
* Dashify
Co-Authored-By: PastaPastaPasta <pasta@dashboost.org>
* Change file permissions
* update travis.yml -parallel -> --jobs
* Replace IsDeterministicMNsSporkActive with IsDIP3Active
IsDIP3Active will now use a fixed parameter from consensus params.
Values for DIP0003Height/DIP0003Hash need to be updated when spork15
activates on mainnet.
Also enforce correct block hash on testnet/mainnet for DIP3 activation
block.
* Remove SPORK_15_DETERMINISTIC_MNS_ENABLED
* Replace all uses of IsDeterministicMNsSporkActive with IsDIP3Active
* Remove DIP3 upgrade-path tests and directly start with DIP3 enabled tests
* Make -masternodeprivkey non-mandatory
This code will vanish later.
* Ensure EvoDB consistency by storing the best block hash
This approach is similar to the one used for chainstate currently.
Ensures that:
- nodes that upgraded after DIP3 has all the data processed correctly (they will crash and require reindex);
- evodb/ is removed when blocks/ is removed (otherwise sync will fail due to duplicate records).
* Implement CEvoDB::VerifyBestBlock/WriteBestBlock and call them from ConnectBlock/DisconnectBlock
* Fix walletbackup.py
* Add LLMQ parameters to consensus params
* Add DIP6 quorum commitment special TX
* Implement CQuorumBlockProcessor which validates and handles commitments
* Add quorum commitments to new blocks
* Propagate QFCOMMITMENT messages to all nodes
* Allow special transactions in blocks which have no inputs/outputs
But only for TRANSACTION_QUORUM_COMMITMENT for now.
* Add quorum commitments to self-crafted blocks in DIP3 tests
* Add simple fork logic for current testnet
This should avoid a fork on the current testnet. It only applies to the
current chain which activated DIP3 at height 264000 and block
00000048e6e71d4bd90e7c456dcb94683ae832fcad13e1760d8283f7e89f332f.
When we revert the chain to retest the DIP3 deployment, this fork logic
can be removed again.
* Use quorumVvecHash instead of quorumHash to make null commitments unique
Implementation of https://github.com/dashpay/dips/pull/31
* Re-add quorum commitments after pruning mempool selected blocks
* Refactor CQuorumBlockProcessor::ProcessBlock to have less nested if/else statements
Also add BEGIN/END markers for temporary code.
* Add comments/documentation to LLMQParams
* Move code which determines if a commitment is required into IsCommitmentRequired
This should make the code easier to read and also removes some duplication.
The also changes the error types that are possible from 3 to 2 now. Instead
of having "bad-qc-already-mined" and "bad-qc-not-mining-phase", there is
only "bad-qc-not-allowed" now.
* Use new parameter from consensus parames for the temporary fork
* Add BIP9 parameters for DIP3 deployment on testnet
* Remove autoix BIP9 deployment and reuse DIP3 deployment
* Add BIP9CheckMasternodesUpgraded to chain params
This controls if miners should check for upgraded masternodes first before
adding BIP9 bits to the block version. This only makes sense in network
where masternodes are up and running before BIP9 activation, which is not
necessarely the case in regtest and devnet.
Also refactor ComputeBlockVersion to use fCheckMasternodesUpgraded instead
of the inverse fAssumeMasternodeIsUpgraded. It is set to false by default
and only set to true in CreateNewBlock.
* Check for upgraded masternodes for DIP3 activation (only mainnet and testnet)
* Bump PROTOCOL_VERSION and DMN_PROTO_VERSION
We probably have nodes with 70211 already running on testnet.
* Remove global fDIP0003ActiveAtTip flag and always use VersionBitsState
fDIP0003ActiveAtTip was used much more often when introduced but turned out
to be not very useful in most places. Always use VersionBitsState now.
* Fix wrong use of VersionBitsState auto IX
* Make sure isAutoLockBip9Active flag is reset in case of chain reorgs
* Allow to use low difficulty and higher block rewards for devnet
Configurable through -minimumdifficultyblocks, -highsubsidyblocks and -highsubsidyfactor
* Fix review comments
* Handle review comments
* add locktransaction rpc call
* Remove special instantsend fee for simple transactions
* Function to check if trx is simple enough to be autolocked
* Automatic lock for all received from peers simple trxes
If we get a new transaction with CInv message and it is "simple" and
is accepted in mempool, we initiate its lock. We don't lock orphan trxes
that accepted in mempool after this trx because they are locked by other
peers.
* Automatically lock simple trxes in wallet
* protocol bump for InstantSend without special fee
* Add function to detect used mempool share
* Mempool threshold for auto IX locks
* Add SPORK_16_INSTANTSEND_AUTOLOCKS spork
* Make autolocks active only when spork SPORK_16_INSTANTSEND_AUTOLOCKS is active
* BIP9 autolocks activation
* revert increasing min peer protocol version for mn rank
* move IsTrxSimple check to CTxLockRequest class
* make MAX_INPUTS_FOR_AUTO_IX private member of CTxLockRequest class
* make AUTO_IX_MEMPOOL_THRESHOLD private member of CInstantSend class
* remove locktransaction RPC call
* tests for automatic IS locks
* fix mempool threshod calculation
* bump mocktime in activate_autoix_bip9
* set node times
* no need to spam the node with gettransaction rpc requests that often
* use `spork active` instead of leaking spork logic into tests
* codestyle fixes
* add test description in comments
* fix typo
* sync test nodes more often during BIP9 activation
* Use 4th bit in BIP9 activation
* Fix comments according codestyle guide
* Call AcceptLockRequest and Vote at the first node creating autoix lock
* fix mempool used memory calculation
* rallback not necessary change in CWallet::CreateTransaction
* test for stopping autolocks for full mempool
* Inject "simple autolockable" txes into txlockrequest logic
* Remove leftover RBF code from BTC
* remove rbf #include
* remove rbf in rpc-tests
* removes replace-by-fee.py
* remove help text related to rbf
* remove comment text relating to rbf
* remove "-mempoolreplacement" cli option
* Remove (effectively dead) RBF code which would never have been called anyway and some assosiated variables
* since `setConflicts` is always empty, this is dead code
* Since we don't have RBF, don't have to do this check. Also, since `setConflicts` is always empty this is dead code
* removes unneccesary if as it will always be true
* remove unused `set<uint256> setConflicts`
* Removes replacement of conflicting txs, as conflicting txs are never accepted
* removes RBF from `validForFeeEstimation`
* removes (probably) unnecessary lock
* remove replacing part of the AcceptToMemoryPool and AcceptToMemoryPoolWIthTime
* fixes err in ps.cpp, didn't remove arg
* RBF in net_processing.cpp
* remove arg in ps-server.cpp
* removes another arg in PS code
* removes rawtx.c AcceptToMemoryPool arg
* removes arg in txvalidationcache_tests.cpp
* remove extra args
* forgot an arg
* fix typo in 82898b0
* remove unused fEnableReplacement in validation.h
* remove the removal reason REPLACED in txmempool.h
* removed unused variable
* comment typo
* Fix crash bug with duplicate inputs within a transaction
Introduced by #9049
* Remove redundant parameter fCheckDuplicateInputs from CheckTransaction
* Implement dip3 integration tests
This tests the full upgrade path from legacy MNs to deterministic MNs
* Invoke UpdatedBlockTip signal when invalidateblock RPC is called
Currently, UpdatedBlockTip would only be called if the invalidation resulted
in another chain becoming the longest one. This is inconsistent behavior
and was spotted when running dip3 integration tests.
* Pass consensus params to ContextualCheckTransaction
As we do with ContextualCheckBlock
* Use ContextualCheckTransaction in ContextualCheckBlock instead of duplicating the check
* Fix pindexPrev parameter signature in ContextualCheckTransaction
* Prepare for DIP3 operator reward payments and switch to array in getblocktemplate
This commit allows to later split MN rewards into multiple recipients, e.g.
the owner reward and operator reward. It also updates the getblocktemplate
output to return an array of MN payments instead of a single entry.
This should allow MN miners and pool operators to prepare themself for the
upcoming changes in regard to operator rewards.
* txoutsMasternode -> voutMasternode
* More renaming
* Consider all masternode payments when looking for a known masternode
Stale pindexBestHeader values cause invalid high-work chains to stay as
pindexBestHeader forever and causes initial syncing to fail.
Observed on testnet.
* Merge #8068: Compact Blocks
48efec8 Fix some minor compact block issues that came up in review (Matt Corallo)
ccd06b9 Elaborate bucket size math (Pieter Wuille)
0d4cb48 Use vTxHashes to optimize InitData significantly (Matt Corallo)
8119026 Provide a flat list of txid/terators to txn in CTxMemPool (Matt Corallo)
678ee97 Add BIP 152 to implemented BIPs list (Matt Corallo)
56ba516 Add reconstruction debug logging (Matt Corallo)
2f34a2e Get our "best three" peers to announce blocks using cmpctblocks (Matt Corallo)
927f8ee Add ability to fetch CNode by NodeId (Matt Corallo)
d25cd3e Add receiver-side protocol implementation for CMPCTBLOCK stuff (Matt Corallo)
9c837d5 Add sender-side protocol implementation for CMPCTBLOCK stuff (Matt Corallo)
00c4078 Add protocol messages for short-ids blocks (Matt Corallo)
e3b2222 Add some blockencodings tests (Matt Corallo)
f4f8f14 Add TestMemPoolEntryHelper::FromTx version for CTransaction (Matt Corallo)
85ad31e Add partial-block block encodings API (Matt Corallo)
5249dac Add COMPACTSIZE wrapper similar to VARINT for serialization (Matt Corallo)
cbda71c Move context-required checks from CheckBlockHeader to Contextual... (Matt Corallo)
7c29ec9 If AcceptBlockHeader returns true, pindex will be set. (Matt Corallo)
96806c3 Stop trimming when mapTx is empty (Pieter Wuille)
* Merge #8408: Prevent fingerprinting, disk-DoS with compact blocks
1d06e49 Ignore CMPCTBLOCK messages for pruned blocks (Suhas Daftuar)
1de2a46 Ignore GETBLOCKTXN requests for unknown blocks (Suhas Daftuar)
* Merge #8418: Add tests for compact blocks
45c7ddd Add p2p test for BIP 152 (compact blocks) (Suhas Daftuar)
9a22a6c Add support for compactblocks to mininode (Suhas Daftuar)
a8689fd Tests: refactor compact size serialization in mininode (Suhas Daftuar)
9c8593d Implement SipHash in Python (Pieter Wuille)
56c87e9 Allow changing BIP9 parameters on regtest (Suhas Daftuar)
* Merge #8505: Trivial: Fix typos in various files
1aacfc2 various typos (leijurv)
* Merge #8449: [Trivial] Do not shadow local variable, cleanup
a159f25 Remove redundand (and shadowing) declaration (Pavel Janík)
cce3024 Do not shadow local variable, cleanup (Pavel Janík)
* Merge #8739: [qa] Fix broken sendcmpct test in p2p-compactblocks.py
157254a Fix broken sendcmpct test in p2p-compactblocks.py (Suhas Daftuar)
* Merge #8854: [qa] Fix race condition in p2p-compactblocks test
b5fd666 [qa] Fix race condition in p2p-compactblocks test (Suhas Daftuar)
* Merge #8393: Support for compact blocks together with segwit
27acfc1 [qa] Update p2p-compactblocks.py for compactblocks v2 (Suhas Daftuar)
422fac6 [qa] Add support for compactblocks v2 to mininode (Suhas Daftuar)
f5b9b8f [qa] Fix bug in mininode witness deserialization (Suhas Daftuar)
6aa28ab Use cmpctblock type 2 for segwit-enabled transfer (Pieter Wuille)
be7555f Fix overly-prescriptive p2p-segwit test for new fetch logic (Matt Corallo)
06128da Make GetFetchFlags always request witness objects from witness peers (Matt Corallo)
* Merge #8882: [qa] Fix race conditions in p2p-compactblocks.py and sendheaders.py
b55d941 [qa] Fix race condition in sendheaders.py (Suhas Daftuar)
6976db2 [qa] Another attempt to fix race condition in p2p-compactblocks.py (Suhas Daftuar)
* Merge #8904: [qa] Fix compact block shortids for a test case
4cdece4 [qa] Fix compact block shortids for a test case (Dagur Valberg Johannsson)
* Merge #8637: Compact Block Tweaks (rebase of #8235)
3ac6de0 Align constant names for maximum compact block / blocktxn depth (Pieter Wuille)
b2e93a3 Add cmpctblock to debug help list (instagibbs)
fe998e9 More agressively filter compact block requests (Matt Corallo)
02a337d Dont remove a "preferred" cmpctblock peer if they provide a block (Matt Corallo)
* Merge #8975: Chainparams: Trivial: In AppInit2(), s/Params()/chainparams/
6f2f639 Chainparams: Trivial: In AppInit2(), s/Params()/chainparams/ (Jorge Timón)
* Merge #8968: Don't hold cs_main when calling ProcessNewBlock from a cmpctblock
72ca7d9 Don't hold cs_main when calling ProcessNewBlock from a cmpctblock (Matt Corallo)
* Merge #8995: Add missing cs_main lock to ::GETBLOCKTXN processing
dfe7906 Add missing cs_main lock to ::GETBLOCKTXN processing (Matt Corallo)
* Merge #8515: A few mempool removal optimizations
0334430 Add some missing includes (Pieter Wuille)
4100499 Return shared_ptr<CTransaction> from mempool removes (Pieter Wuille)
51f2783 Make removed and conflicted arguments optional to remove (Pieter Wuille)
f48211b Bypass removeRecursive in removeForReorg (Pieter Wuille)
* Merge #9026: Fix handling of invalid compact blocks
d4833ff Bump the protocol version to distinguish new banning behavior. (Suhas Daftuar)
88c3549 Fix compact block handling to not ban if block is invalid (Suhas Daftuar)
c93beac [qa] Test that invalid compactblocks don't result in ban (Suhas Daftuar)
* Merge #9039: Various serialization simplifcations and optimizations
d59a518 Use fixed preallocation instead of costly GetSerializeSize (Pieter Wuille)
25a211a Add optimized CSizeComputer serializers (Pieter Wuille)
a2929a2 Make CSerAction's ForRead() constexpr (Pieter Wuille)
a603925 Avoid -Wshadow errors (Pieter Wuille)
5284721 Get rid of nType and nVersion (Pieter Wuille)
657e05a Make GetSerializeSize a wrapper on top of CSizeComputer (Pieter Wuille)
fad9b66 Make nType and nVersion private and sometimes const (Pieter Wuille)
c2c5d42 Make streams' read and write return void (Pieter Wuille)
50e8a9c Remove unused ReadVersion and WriteVersion (Pieter Wuille)
* Merge #9058: Fixes for p2p-compactblocks.py test timeouts on travis (#8842)
dac53b5 Modify getblocktxn handler not to drop requests for old blocks (Russell Yanofsky)
55bfddc [qa] Fix stale data bug in test_compactblocks_not_at_tip (Russell Yanofsky)
47e9659 [qa] Fix bug in compactblocks v2 merge (Russell Yanofsky)
* Merge #9160: [trivial] Fix hungarian variable name
ec34648 [trivial] Fix hungarian variable name (Russell Yanofsky)
* Merge #9159: [qa] Wait for specific block announcement in p2p-compactblocks
dfa44d1 [qa] Wait for specific block announcement in p2p-compactblocks (Russell Yanofsky)
* Merge #9125: Make CBlock a vector of shared_ptr of CTransactions
b4e4ba4 Introduce convenience type CTransactionRef (Pieter Wuille)
1662b43 Make CBlock::vtx a vector of shared_ptr<CTransaction> (Pieter Wuille)
da60506 Add deserializing constructors to CTransaction and CMutableTransaction (Pieter Wuille)
0e85204 Add serialization for unique_ptr and shared_ptr (Pieter Wuille)
* Merge #8872: Remove block-request logic from INV message processing
037159c Remove block-request logic from INV message processing (Matt Corallo)
3451203 [qa] Respond to getheaders and do not assume a getdata on inv (Matt Corallo)
d768f15 [qa] Make comptool push blocks instead of relying on inv-fetch (mrbandrews)
* Merge #9199: Always drop the least preferred HB peer when adding a new one.
ca8549d Always drop the least preferred HB peer when adding a new one. (Gregory Maxwell)
* Merge #9233: Fix some typos
15fa95d Fix some typos (fsb4000)
* Merge #9260: Mrs Peacock in The Library with The Candlestick (killed main.{h,cpp})
76faa3c Rename the remaining main.{h,cpp} to validation.{h,cpp} (Matt Corallo)
e736772 Move network-msg-processing code out of main to its own file (Matt Corallo)
87c35f5 Remove orphan state wipe from UnloadBlockIndex. (Matt Corallo)
* Merge #9014: Fix block-connection performance regression
dd0df81 Document ConnectBlock connectTrace postconditions (Matt Corallo)
2d6e561 Switch pblock in ProcessNewBlock to a shared_ptr (Matt Corallo)
2736c44 Make the optional pblock in ActivateBestChain a shared_ptr (Matt Corallo)
ae4db44 Create a shared_ptr for the block we're connecting in ActivateBCS (Matt Corallo)
fd9d890 Keep blocks as shared_ptrs, instead of copying txn in ConnectTip (Matt Corallo)
6fdd43b Add struct to track block-connect-time-generated info for callbacks (Matt Corallo)
* Merge #9240: Remove txConflicted
a874ab5 remove internal tracking of mempool conflicts for reporting to wallet (Alex Morcos)
bf663f8 remove external usage of mempool conflict tracking (Alex Morcos)
* Merge #9344: Do not run functions with necessary side-effects in assert()
da9cdd2 Do not run functions with necessary side-effects in assert() (Gregory Maxwell)
* Merge #9273: Remove unused CDiskBlockPos* argument from ProcessNewBlock
a13fa4c Remove unused CDiskBlockPos* argument from ProcessNewBlock (Matt Corallo)
* Merge #9352: Attempt reconstruction from all compact block announcements
813ede9 [qa] Update compactblocks test for multi-peer reconstruction (Suhas Daftuar)
7017298 Allow compactblock reconstruction when block is in flight (Suhas Daftuar)
* Merge #9252: Release cs_main before calling ProcessNewBlock, or processing headers (cmpctblock handling)
bd02bdd Release cs_main before processing cmpctblock as header (Suhas Daftuar)
680b0c0 Release cs_main before calling ProcessNewBlock (cmpctblock handling) (Suhas Daftuar)
* Merge #9283: A few more CTransactionRef optimizations
91335ba Remove unused MakeTransactionRef overloads (Pieter Wuille)
6713f0f Make FillBlock consume txn_available to avoid shared_ptr copies (Pieter Wuille)
62607d7 Convert COrphanTx to keep a CTransactionRef (Pieter Wuille)
c44e4c4 Make AcceptToMemoryPool take CTransactionRef (Pieter Wuille)
* Merge #9375: Relay compact block messages prior to full block connection
02ee4eb Make most_recent_compact_block a pointer to a const (Matt Corallo)
73666ad Add comment to describe callers to ActivateBestChain (Matt Corallo)
962f7f0 Call ActivateBestChain without cs_main/with most_recent_block (Matt Corallo)
0df777d Use a temp pindex to avoid a const_cast in ProcessNewBlockHeaders (Matt Corallo)
c1ae4fc Avoid holding cs_most_recent_block while calling ReadBlockFromDisk (Matt Corallo)
9eb67f5 Ensure we meet the BIP 152 old-relay-types response requirements (Matt Corallo)
5749a85 Cache most-recently-connected compact block (Matt Corallo)
9eaec08 Cache most-recently-announced block's shared_ptr (Matt Corallo)
c802092 Relay compact block messages prior to full block connection (Matt Corallo)
6987219 Add a CValidationInterface::NewPoWValidBlock callback (Matt Corallo)
180586f Call AcceptBlock with the block's shared_ptr instead of CBlock& (Matt Corallo)
8baaba6 [qa] Avoid race in preciousblock test. (Matt Corallo)
9a0b2f4 [qa] Make compact blocks test construction using fetch methods (Matt Corallo)
8017547 Make CBlockIndex*es in net_processing const (Matt Corallo)
* Merge #9486: Make peer=%d log prints consistent
e6111b2 Make peer id logging consistent ("peer=%d" instead of "peer %d") (Matt Corallo)
* Merge #9400: Set peers as HB peers upon full block validation
d4781ac Set peers as HB peers upon full block validation (Gregory Sanders)
* Merge #9499: Use recent-rejects, orphans, and recently-replaced txn for compact-block-reconstruction
c594580 Add braces around AddToCompactExtraTransactions (Matt Corallo)
1ccfe9b Clarify comment about mempool/extra conflicts (Matt Corallo)
fac4c78 Make PartiallyDownloadedBlock::InitData's second param const (Matt Corallo)
b55b416 Add extra_count lower bound to compact reconstruction debug print (Matt Corallo)
863edb4 Consider all (<100k memusage) txn for compact-block-extra-txn cache (Matt Corallo)
7f8c8ca Consider all orphan txn for compact-block-extra-txn cache (Matt Corallo)
93380c5 Use replaced transactions in compact block reconstruction (Matt Corallo)
1531652 Keep shared_ptrs to recently-replaced txn for compact blocks (Matt Corallo)
edded80 Make ATMP optionally return the CTransactionRefs it replaced (Matt Corallo)
c735540 Move ORPHAN constants from validation.h to net_processing.h (Matt Corallo)
* Merge #9587: Do not shadow local variable named `tx`.
44f2baa Do not shadow local variable named `tx`. (Pavel Janík)
* Merge #9510: [trivial] Fix typos in comments
cc16d99 [trivial] Fix typos in comments (practicalswift)
* Merge #9604: [Trivial] add comment about setting peer as HB peer.
dd5b011 [Trivial] add comment about setting peer as HB peer. (John Newbery)
* Fix using of AcceptToMemoryPool in PrivateSend code
* add `override`
* fSupportsDesiredCmpctVersion
* bring back tx ressurection in DisconnectTip
* Fix delayed headers
* Remove unused CConnman::FindNode overload
* Fix typos and comments
* Fix minor code differences
* Don't use rejection cache for corrupted transactions
Partly based on https://github.com/bitcoin/bitcoin/pull/8525
* Backport missed cs_main locking changes
Missed from 58a215ce8c
* Backport missed comments and mapBlockSource.emplace call
Missed from two commits:
88c35491ab7c98ce584e
* Add CheckPeerHeaders() helper and check in (nCount == 0) too
