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path: root/src/txmempool.cpp
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2015-05-15Consensus: MOVEONLY: Move CValidationState from main consensus/validationjtimon
2015-05-13Merge pull request #5159Wladimir J. van der Laan
b649e03 Create new BlockPolicyEstimator for fee estimates (Alex Morcos)
2015-05-13Create new BlockPolicyEstimator for fee estimatesAlex Morcos
This class groups transactions that have been confirmed in blocks into buckets, based on either their fee or their priority. Then for each bucket, the class calculates what percentage of the transactions were confirmed within various numbers of blocks. It does this by keeping an exponentially decaying moving history for each bucket and confirm block count of the percentage of transactions in that bucket that were confirmed within that number of blocks. -Eliminate txs which didn't have all inputs available at entry from fee/pri calcs -Add dynamic breakpoints and tracking of confirmation delays in mempool transactions -Remove old CMinerPolicyEstimator and CBlockAverage code -New smartfees.py -Pass a flag to the estimation code, using IsInitialBlockDownload as a proxy for when we are still catching up and we shouldn't be counting how many blocks it takes for transactions to be included. -Add a policyestimator unit test
2015-04-20Consensus: Create consensus/consensus.h with some constantsjtimon
2015-03-26Keep mempool consistent during block-reorgsGavin Andresen
This fixes a subtle bug involving block re-orgs and non-standard transactions. Start with a block containing a non-standard transaction, and one or more transactions spending it in the memory pool. Then re-org away from that block to another chain that does not contain the non-standard transaction. Result before this fix: the dependent transactions get stuck in the mempool without their parent, putting the mempool in an inconsistent state. Tested with a new unit test.
2015-03-06src/txmempool.cpp: make numEntries a uint32_tWladimir J. van der Laan
Don't ever serialize a size_t or long, their sizes are platform dependent.
2015-01-31Remove whitespaces before double colon in errors and logsPavel Janík
2014-12-27Decouple miner.o and txmempool.o from CTxUndojtimon
2014-12-23Merge pull request #5481Wladimir J. van der Laan
6484930 Apply AreSane() checks to the fees from the network. (Gregory Maxwell)
2014-12-19Added "Core" to copyright headerssandakersmann
Github-Pull: #5494 Rebased-From: 15de949bb9277e442302bdd8dee299a8d6deee60
2014-12-17make all catch() arguments constPhilip Kaufmann
- I saw this on http://en.cppreference.com/w/cpp/language/try_catch and thought it would be a good idea - also unify used format to better be able to search for exception uses in our codebase
2014-12-16Fix small typos in comments and error messagesPavel Janík
Rebased-From: 67b2d819cdf6181e7f016e5366ce7479830893bd Github-Pull: #5404
2014-12-15Apply AreSane() checks to the fees from the network.Gregory Maxwell
'Sane' was already defined by this code as: fee.GetFeePerK() > minRelayFee.GetFeePerK() * 10000 But sanity was only enforced for data loaded from disk. Note that this is a pretty expansive definition of 'sane': A 10 BTC fee is still passes the test if its on a 100kb transaction. This prevents a single insane fee on the network from making us reject our stored fee data at start. We still may reject valid saved fee state if minRelayFee is changed between executions. This also reduces the risk and limits the damage from a cascading failure where one party pays a bunch of insane fees which cases others to pay insane fees.
2014-12-08Make CTxMemPool::remove more effecient by avoiding recursionMatt Corallo
2014-12-08Make CTxMemPool::check more thourough by using CheckInputsMatt Corallo
2014-12-08Remove txn which are invalidated by coinbase maturity during reorgMatt Corallo
2014-11-17Update comments in txmempool to be doxygen compatibleMichael Ford
Fix typo in Read() error message
2014-10-31minor cleanup: include orders, end comments etc.Philip Kaufmann
- no code changes
2014-10-29Separate protocol versioning from clientversionCory Fields
2014-10-27MOVEONLY: Separate CTransaction and dependencies from corejtimon
2014-10-22boost: split stream classes out of serialize.hCory Fields
serialization now has no dependencies.
2014-10-17script: add a slew of includes all around and drop includes from script.hCory Fields
Lots of files ended up with indirect includes from script.h.
2014-10-08Merge pull request #4834Pieter Wuille
7c70438 Get rid of the dummy CCoinsViewCache constructor arg (Pieter Wuille) ed27e53 Add coins_tests with a large randomized CCoinViewCache test. (Pieter Wuille) 058b08c Do not keep fully spent but unwritten CCoins entries cached. (Pieter Wuille) c9d1a81 Get rid of CCoinsView's SetCoins and SetBestBlock. (Pieter Wuille) f28aec0 Use ModifyCoins instead of mutable GetCoins. (Pieter Wuille)
2014-09-26Use a typedef for monetary valuesMark Friedenbach
2014-09-24Get rid of the dummy CCoinsViewCache constructor argPieter Wuille
2014-09-16add nModSize init to default constructor of CTxMemPoolEntryPhilip Kaufmann
2014-09-16Merge pull request #4911Pieter Wuille
611116d header include cleanup (Philip Kaufmann)
2014-09-15Fixing compiler warning C4101ENikS
Github-Pull: #4856
2014-09-15Merge pull request #4817Pieter Wuille
c26649f Track modified size in TxMemPoolEntry so that we can correctly compute priority. (Alex Morcos)
2014-09-14header include cleanupPhilip Kaufmann
- ensures alphabetical ordering for includes etc. in source file headers
2014-09-10Merge pull request #4822Pieter Wuille
629d75f Combine CCoinsViewCache's HaveCoins and const GetCoins into AccessCoins. (Pieter Wuille)
2014-09-09Remove some unnecessary c_strs() in logging and the GUIPhilip Kaufmann
Includes `core: remove unneeded c_str() / Qt: replace c_str() with Qt code` by P. Kaufmann.
2014-09-08Track modified size in TxMemPoolEntry so that we can correctly compute priority.Alex Morcos
2014-09-03Combine CCoinsViewCache's HaveCoins and const GetCoins into AccessCoins.Pieter Wuille
The efficient version of CCoinsViewCache::GetCoins only works for known-to-exist cache entries, requiring a separate HaveCoins call beforehand. This is inefficient as both perform a hashtable lookup. Replace the non-mutable GetCoins with AccessCoins, which returns a potentially-NULL pointer. This also decreases the overloading of GetCoins. Also replace some copying (inefficient) GetCoins calls with equivalent AccessCoins, decreasing the copying.
2014-08-28Fix a few "Uninitialized scalar field" warningsWladimir J. van der Laan
Fix a few warnings reported by Coverity. None of these is critical, but making sure that class fields are initialized can avoid heisenbugs.
2014-08-26Merge pull request #4748Pieter Wuille
ad49c25 Split up util.cpp/h (Wladimir J. van der Laan) f841aa2 Move `COIN` and `CENT` to core.h (Wladimir J. van der Laan) 6e5fd00 Move `*Version()` functions to version.h/cpp (Wladimir J. van der Laan) b4aa769 Move `S_I*` constants and `MSG_NOSIGNAL` to compat.h (Wladimir J. van der Laan) af8297c Move functions in wallet.h to implementation file (Wladimir J. van der Laan) 651480c move functions in main and net to implementation files (Wladimir J. van der Laan) 610a8c0 Move SetThreadPriority implementation to util.cpp instead of the header (Wladimir J. van der Laan) f780e65 Remove unused function `ByteReverse` from util.h (Wladimir J. van der Laan) 121d6ad Remove unused `alignup` function from util.h (Wladimir J. van der Laan) d1e26d4 Move CMedianFilter to timedata.cpp (Wladimir J. van der Laan)
2014-08-26Split up util.cpp/hWladimir J. van der Laan
Split up util.cpp/h into: - string utilities (hex, base32, base64): no internal dependencies, no dependency on boost (apart from foreach) - money utilities (parsesmoney, formatmoney) - time utilities (gettime*, sleep, format date): - and the rest (logging, argument parsing, config file parsing) The latter is basically the environment and OS handling, and is stripped of all utility functions, so we may want to rename it to something else than util.cpp/h for clarity (Matt suggested osinterface). Breaks dependency of sha256.cpp on all the things pulled in by util.
2014-08-26Use const CCoinsView's at some places.Daniel Kraft
At some places where it is possible (e. g., CheckInputs), use a const version of CCoinsView instead of a non-const one.
2014-08-26Make appropriate getter-routines "const" in CCoinsView.Daniel Kraft
Mark the "Get"/"Have" routines in CCoinsView and subclasses as "const".
2014-08-14Closely track mempool byte total. Add "getmempoolinfo" RPC.Jeff Garzik
Goal: Gain live insight into the mempool. Groundwork for future work that caps mempool size.
2014-07-29Process fee estimate file into temporary vector first to let sanity checking ↵Alex Morcos
complete.
2014-07-28Fix minor bug which only affected log messages.Alex Morcos
2014-07-27Fixed a bug with index bounds checkingAlex Morcos
2014-07-23Bugfix: make CCoinsViewMemPool support pruned entries in underlying cachePieter Wuille
2014-07-21Revert "Relay double-spends, subject to anti-DOS"Wladimir J. van der Laan
This reverts commit d640a3ceab4f4372c2a0f738c1286cfde4b41b50.
2014-07-03Move fee policy out of coreGavin Andresen
2014-07-03Sanity checks for estimatesGavin Andresen
Require at least 11 samples before giving fee/priority estimates. And have wallet-created transactions go throught the fee-sanity-check code path.
2014-06-27Relay double-spends, subject to anti-DOSTom Harding
Allows network wallets and other clients to see transactions that respend a prevout already spent in an unconfirmed transaction in this node's mempool. Knowledge of an attempted double-spend is of interest to recipients of the first spend. In some cases, it will allow these recipients to withhold goods or services upon being alerted of a double-spend that deprives them of payment. As before, respends are not added to the mempool. Anti-Denial-of-Service-Attack provisions: - Use a bloom filter to relay only one respend per mempool prevout - Rate-limit respend relays to a default of 100 thousand bytes/minute - Define tx2.IsEquivalentTo(tx1): equality when scriptSigs are not considered - Do not relay these equivalent transactions Remove an unused variable declaration in txmempool.cpp.
2014-06-26JSON-RPC method: prioritisetransaction <txid> <priority delta> <priority tx fee>Luke Dashjr
Accepts the transaction into mined blocks at a higher (or lower) priority
2014-06-06estimatefee / estimatepriority RPC methodsGavin Andresen
New RPC methods: return an estimate of the fee (or priority) a transaction needs to be likely to confirm in a given number of blocks. Mike Hearn created the first version of this method for estimating fees. It works as follows: For transactions that took 1 to N (I picked N=25) blocks to confirm, keep N buckets with at most 100 entries in each recording the fees-per-kilobyte paid by those transactions. (separate buckets are kept for transactions that confirmed because they are high-priority) The buckets are filled as blocks are found, and are saved/restored in a new fee_estiamtes.dat file in the data directory. A few variations on Mike's initial scheme: To estimate the fee needed for a transaction to confirm in X buckets, all of the samples in all of the buckets are used and a median of all of the data is used to make the estimate. For example, imagine 25 buckets each containing the full 100 entries. Those 2,500 samples are sorted, and the estimate of the fee needed to confirm in the very next block is the 50'th-highest-fee-entry in that sorted list; the estimate of the fee needed to confirm in the next two blocks is the 150'th-highest-fee-entry, etc. That algorithm has the nice property that estimates of how much fee you need to pay to get confirmed in block N will always be greater than or equal to the estimate for block N+1. It would clearly be wrong to say "pay 11 uBTC and you'll get confirmed in 3 blocks, but pay 12 uBTC and it will take LONGER". A single block will not contribute more than 10 entries to any one bucket, so a single miner and a large block cannot overwhelm the estimates.
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