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For each 'bit' in the filter we really maintain 2 bits, which store either:
0: not set
1-3: set in generation N
After (nElements / 2) insertions, we switch to a new generation, and wipe
entries which already had the new generation number, effectively switching
from the last 1.5 * nElements set to the last 1.0 * nElements set.
This is 25% more space efficient than the previous implementation, and can
(at peak) store 1.5 times the requested amount of history (though only
1.0 times the requested history is guaranteed).
The existing unit tests should be sufficient.
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2e29e7e Globals: Remove a bunch of Params() calls from main.cpp: (Jorge Timón)
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63b5840 Fix usage of local python-bitcoinlib (Peter Todd)
16a2f93 Fix incorrect locking of mempool during RBF replacement (Peter Todd)
97203f5 Port test to rpc-test framework (Suhas Daftuar)
20367d8 Add test for max replacement limit (Suhas Daftuar)
73d9040 Improve RBF replacement criteria (Suhas Daftuar)
b272ecf Reject replacements that add new unconfirmed inputs (Peter Todd)
fc8c19a Prevent low feerate txs from (directly) replacing high feerate txs (Peter Todd)
0137e6f Add tests for transaction replacement (Peter Todd)
5891f87 Add opt-in full-RBF to mempool (Peter Todd)
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Previously peers which implement a protocol version less than NO_BLOOM_VERSION
would not be disconnected for sending a filter command, regardless of the
peerbloomfilter option.
Many node operators do not wish to provide expensive bloom filtering for SPV
clients, previously they had to cherry pick the commit which enabled the
disconnect logic.
The default should remain false until a sufficient percent of SPV clients
have updated.
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Moving this logic outside of the "switch" makes it far simpler to
enable the forced disconnect by a parameter.
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1) Chainparams: Explicit CChainParams arg for main:
-AcceptBlock
-AcceptBlockHeader
-ActivateBestChain
-ConnectTip
-InitBlockIndex
-LoadExternalBlockFile
-VerifyDB parametric constructor
2) Also pickup more Params()\. in main.cpp
3) Pass nPruneAfterHeight explicitly to new FindFilesToPrune() in main.cpp
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80ae230 Improve log messages for blocks only violations. (Patick Strateman)
08843ed Add relaytxes status to getpeerinfo (Peter Todd)
d8aaa51 Bail early in processing transactions in blocks only mode. (Patick Strateman)
3587f6a Fix relay mechanism for whitelisted peers under blocks only mode. (Patick Strateman)
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6531f17 Add mediantime field to getblock and getblockheader (Peter Todd)
7259769 Document new mediantime field in getblockchaininfo (Peter Todd)
c277a63 Clarify nLockTime-by-time comment in CheckFinalTx() (Peter Todd)
748321e Add mediantime field to getblockchaininfo RPC call (Peter Todd)
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Previously unsolicited transactions would be processed as normal.
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Previously in blocks only mode all inv messages where type!=MSG_BLOCK would be
rejected without regard for whitelisting or whitelistalwaysrelay.
As such whitelisted peers would never send the transaction (which would be
processed).
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1cf3dd8 Add unit test for UpdateCoins (Alex Morcos)
03c8282 Make CCoinsViewTest behave like CCoinsViewDB (Alex Morcos)
14470f9 ModifyNewCoins saves database lookups (Alex Morcos)
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6bc9e40 Chainparams: Explicit CChainParams arg for miner: (Jorge Timón)
598e494 Chainparams: Explicit CChainParams arg for main (pre miner): (Jorge Timón)
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bbf49da Fix comment for blocksonly parameter interactions (Patick Strateman)
6a4982f Fix fRelayTxs comment (Patick Strateman)
59441a0 Display DEFAULT_WHITELISTALWAYSRELAY in help text (Patick Strateman)
71a2683 Use DEFAULT_BLOCKSONLY and DEFAULT_WHITELISTALWAYSRELAY constants (Patick Strateman)
762b13b Add help text for blocksonly and whitelistalwaysrelay (Patick Strateman)
3a96497 Add whitelistalwaysrelay option (Patick Strateman)
420fa81 Do not process tx inv's in blocksonly mode (Patick Strateman)
4044f07 Add blocksonly mode (Patick Strateman)
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58ef0ff doc: update docs for Tor listening (Wladimir J. van der Laan)
68ccdc4 doc: Mention Tor listening in release notes (Wladimir J. van der Laan)
09c1ae1 torcontrol improvements and fixes (Wladimir J. van der Laan)
2f796e5 Better error message if Tor version too old (Peter Todd)
8f4e67f net: Automatically create hidden service, listen on Tor (Wladimir J. van der Laan)
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69d373f Don't wipe the sigcache in TestBlockValidity (Pieter Wuille)
0b9e9dc Evict sigcache entries that are seen in a block (Pieter Wuille)
830e3f3 Make sigcache faster and more efficient (Pieter Wuille)
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33c90cf Make skipping BIP30 check chain agnostic (Alex Morcos)
06d81ad Skip BIP30 check after BIP34 activation (Alex Morcos)
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40b77d4 Always allow getheaders from whitelisted peers (Wladimir J. van der Laan)
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-ProcessNewBlock
-TestBlockValidity
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7267843 Globals: Make AcceptBlockHeader static (Fix #6163) (Jorge Timón)
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..and at the same time prevent AcceptBlockHeader() from calling global function Params()
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Previously RemoveStaged() was called without pool.cs held.
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Fix the calculation of conflicting size/conflicting fees.
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Previously all conflicting transactions were evaluated as a whole to
determine if the feerate was being increased. This meant that low
feerate children pulled the feerate down, potentially allowing a high
transaction with a high feerate to be replaced by one with a lower
feerate.
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Replaces transactions already in the mempool if a new transaction seen
with a higher fee, specifically both a higher fee per KB and a higher
absolute fee. Children are evaluateed for replacement as well, using the
mempool package tracking to calculate replaced fees/size. Transactions
can opt-out of transaction replacement by setting nSequence >= maxint-1
on all inputs. (which all wallets do already)
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77f1f59 Benchmark sanity checks and fork checks in ConnectBlock (Matt Corallo)
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Starting with Tor version 0.2.7.1 it is possible, through Tor's control socket
API, to create and destroy 'ephemeral' hidden services programmatically.
https://stem.torproject.org/api/control.html#stem.control.Controller.create_ephemeral_hidden_service
This means that if Tor is running (and proper authorization is available),
bitcoin automatically creates a hidden service to listen on, without user
manual configuration. This will positively affect the number of available
.onion nodes.
- When the node is started, connect to Tor through control socket
- Send `ADD_ONION` command
- First time:
- Make it create a hidden service key
- Save the key in the data directory for later usage
- Make it redirect port 8333 to the local port 8333 (or whatever port we're listening on).
- Keep control socket connection open for as long node is running. The hidden service will
(by default) automatically go away when the connection is closed.
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e20d924 [trivial] init: Use defaults MIN_RELAY_TX_FEE & TRANSACTION_MAXFEE (MarcoFalke)
536766c [trivial] New DEFAULT_MIN_RELAY_TX_FEE = 1000 (MarcoFalke)
5f46a7d transaction_tests: Be more strict checking dust (MarcoFalke)
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87cbdb8 Globals: Explicit Consensus::Params arg for main: (Jorge Timón)
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Process `getheaders` messages from whitelisted peers even if we are in
initial block download. Whitelisted peers can always use a node as a
block source.
Also log a debug message when the request is ignored, for
troubleshooting.
Fixes #6971.
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22e7807 Always flush block and undo when switching to new file (Pieter Wuille)
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d1c3762 Revert "Revert "Enable policy enforcing GetMedianTimePast as the end point of lock-time constraints"" (Gregory Maxwell)
e4e5334 Restore MedianTimePast for locktime. (Gregory Maxwell)
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53238ff Clarify what minrelaytxfee does (MarcoFalke)
abd8b76 [qt] Properly display required fee instead of minTxFee (MarcoFalke)
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Previously, the undo weren't being flushed during a reindex because
fKnown was set to true in FindBlockPos. That is the correct behaviour
for block files as they aren't being touched, but undo files are
touched.
This changes the behaviour to always flush when switching to a new file
(even for block files, though that isn't really necessary).
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Revert "Revert "Add rules--presently disabled--for using GetMedianTimePast as endpoint for lock-time calculations""
This reverts commit 40cd32e835092c3158175511da5193193ec54939.
After careful analysis it was determined that the change was, in fact, safe and several people were suffering
momentary confusion about locktime semantics.
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When processing a new transaction, in addition to spending the Coins of its txin's it creates a new Coins for its outputs. The existing ModifyCoins function will first make sure this Coins does not already exist. It can not exist due to BIP 30, but because of that the lookup can't be cached and always has to go to the database. Since we are creating the coins to match the new tx anyway, there is no point in checking if they exist first anyway. However this should not be used for coinbase tx's in order to preserve the historical behavior of overwriting the two existing duplicate tx pairs.
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