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2020-05-03Remove CCoinsViewCache::GetValueIn(...)practicalswift
2020-04-21[docs] use consistent naming for possible_overwriteJohn Newbery
And other general comment improvements for adding coins.
2020-04-21[docs] Improve commenting in coins.cpp|hJohn Newbery
Remove references to 'pruned' coins, which don't exist since the move to per-txout coins db.
2019-12-30scripted-diff: Bump copyright of files changed in 2019MarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2019-07-21move-onlyish: move CCoinsViewErrorCatcher out of init.cppJames O'Beirne
and into coins.cpp. This move is necessary so that we can later include a CCoinsViewErrorCatcher instance under CChainState. Co-authored-by: MarcoFalke <falke.marco@gmail.com>
2018-11-05Extract CSipHasher to it's own file in crypto/ directory.Jim Posen
This is a move-only commit with the exception of changes to includes.
2018-09-11Drop unused GetType() from CSizeComputerBen Woosley
2018-07-27Update copyright headers to 2018DrahtBot
2018-01-03Increment MIT Licence copyright header year on files modified in 2017Akira Takizawa
2017-11-16Remove includes in .cpp files for things the corresponding .h file already ↵practicalswift
included
2017-11-16scripted-diff: Replace #include "" with #include <> (ryanofsky)MeshCollider
-BEGIN VERIFY SCRIPT- for f in \ src/*.cpp \ src/*.h \ src/bench/*.cpp \ src/bench/*.h \ src/compat/*.cpp \ src/compat/*.h \ src/consensus/*.cpp \ src/consensus/*.h \ src/crypto/*.cpp \ src/crypto/*.h \ src/crypto/ctaes/*.h \ src/policy/*.cpp \ src/policy/*.h \ src/primitives/*.cpp \ src/primitives/*.h \ src/qt/*.cpp \ src/qt/*.h \ src/qt/test/*.cpp \ src/qt/test/*.h \ src/rpc/*.cpp \ src/rpc/*.h \ src/script/*.cpp \ src/script/*.h \ src/support/*.cpp \ src/support/*.h \ src/support/allocators/*.h \ src/test/*.cpp \ src/test/*.h \ src/wallet/*.cpp \ src/wallet/*.h \ src/wallet/test/*.cpp \ src/wallet/test/*.h \ src/zmq/*.cpp \ src/zmq/*.h do base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f done -END VERIFY SCRIPT-
2017-09-16Small refactor of CCoinsViewCache::BatchWrite()Dan Raviv
std::unordered_map::erase( const_iterator pos ) returns an iterator to the element following the removed one. Use that to optimize (probably minor-performance-wise, and definitely code-structure-wise) the implementation of CCoinsViewCache::BatchWrite().
2017-08-16Use nullptr instead of zero (0) as the null pointer constantpracticalswift
2017-07-14Remove confusing MAX_BLOCK_BASE_SIZE.Gregory Maxwell
Some people keep thinking that MAX_BLOCK_BASE_SIZE is a separate size limit from the weight limit when it fact it is superfluous, and used in early tests before the witness data has been validated or just to compute worst case sizes. The size checks that use it would not behave any differently consensus wise if they were eliminated completely. Its correct value is not independently settable but is a function of the weight limit and weight formula. This patch just eliminates it and uses the scale factor as required to compute the worse case constants. It also moves the weight factor out of primitives into consensus, which is a more logical place for it.
2017-06-28Merge #10148: Use non-atomic flushing with block replayWladimir J. van der Laan
176c021 [qa] Test non-atomic chainstate writes (Suhas Daftuar) d6af06d Dont create pcoinsTip until after ReplayBlocks. (Matt Corallo) eaca1b7 Random db flush crash simulator (Pieter Wuille) 0580ee0 Adapt memory usage estimation for flushing (Pieter Wuille) 013a56a Non-atomic flushing using the blockchain as replay journal (Pieter Wuille) b3a279c [MOVEONLY] Move LastCommonAncestor to chain (Pieter Wuille) Tree-SHA512: 47ccc62303f9075c44d2a914be75bd6969ff881a857a2ff1227f05ec7def6f4c71c46680c5a28cb150c814999526797dc05cf2701fde1369c06169f46eccddee
2017-06-26Simplify return values of GetCoin/HaveCoin(InCache)Pieter Wuille
This removes the possibility for GetCoin/HaveCoin/HaveCoinInCache to return true while the respective coin is spent. By doing it across all calls, some extra checks can be eliminated. coins_tests is modified to call HaveCoin sometimes before and sometimes after AccessCoin. A further change is needed because the semantics for GetCoin slightly changed, causing a pruned entry in the parent cache to not be pulled into the child in FetchCoin.
2017-06-26Non-atomic flushing using the blockchain as replay journalPieter Wuille
2017-06-26Merge #10559: Change semantics of HaveCoinInCache to match HaveCoinWladimir J. van der Laan
5257698 Change semantics of HaveCoinInCache to match HaveCoin (Alex Morcos) Tree-SHA512: 397e9ba28646b81fffa53e55064735d4d242aaffdf8484506825f785b0e414f334e4c5cd1e4e1dd9a4b6d1f6954c7ecad15429934a1c4e8d39f596cbd9f5dd80
2017-06-20Merge #10537: Few Minor per-utxo assert-semantics re-adds and tweakPieter Wuille
9417d7a33 Be much more agressive in AccessCoin docs. (Matt Corallo) f58349ca8 Restore some assert semantics in sigop cost calculations (Matt Corallo) 3533fb4d3 Return a bool in SpendCoin to restore pre-per-utxo assert semantics (Matt Corallo) ec1271f2b Remove useless mapNextTx lookup in CTxMemPool::TrimToSize. (Matt Corallo) Tree-SHA512: 158a4bce063eac93e1d50709500a10a7cb1fb3271f10ed445d701852fce713e2bf0da3456088e530ab005f194ef4a2adf0c7cb23226b160cecb37a79561f29ca
2017-06-09Return a bool in SpendCoin to restore pre-per-utxo assert semanticsMatt Corallo
Since its free to do so, assert that Spends succeeded when we expect them to.
2017-06-08Change semantics of HaveCoinInCache to match HaveCoinAlex Morcos
Previously it was possible for HaveCoinInCache to return true for a spent coin. It is more clear to keep the semantics the same. HaveCoinInCache is used for two reasons: - tracking coins we may want to uncache, in which case it is unlikely there would be spent coins we could uncache (not dirty) - optimistically checking whether we have already included a tx in the blockchain, in which case a spent coin is not a reliable indicator that we have.
2017-06-06[trivial] Fix typo: "occurrences" (misspelled as "occurrances")practicalswift
Typo introduced in 000391132608343c66488d62625c714814959bc9: $ git blame src/coins.cpp | grep occurrances 00039113 (2017-04-25 11:29:29 -0700 89) // deal with the pre-BIP30 occurrances of duplicate coinbase transactions.
2017-06-01scripted-diff: various renames for per-utxo consistencyPieter Wuille
Thanks to John Newberry for pointing these out. -BEGIN VERIFY SCRIPT- sed -i 's/\<GetCoins\>/GetCoin/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<HaveCoins\>/HaveCoin/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<HaveCoinsInCache\>/HaveCoinInCache/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<IsPruned\>/IsSpent/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<FetchCoins\>/FetchCoin/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<CoinsEntry\>/CoinEntry/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<vHashTxnToUncache\>/coins_to_uncache/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<vHashTxToUncache\>/coins_to_uncache/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<fHadTxInCache\>/had_coin_in_cache/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<coinbaseids\>/coinbase_coins/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<disconnectedids\>/disconnected_coins/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<duplicateids\>/duplicate_coins/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h sed -i 's/\<oldcoins\>/old_coin/g' src/test/coins_tests.cpp sed -i 's/\<origcoins\>/orig_coin/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h -END VERIFY SCRIPT-
2017-06-01Rename CCoinsCacheEntry::coins to coinPieter Wuille
2017-06-01Merge CCoinsViewCache's GetOutputFor and AccessCoinPieter Wuille
They're doing the same thing now.
2017-06-01Remove unused CCoins methodsPieter Wuille
2017-06-01Switch CCoinsView and chainstate db from per-txid to per-txoutPieter Wuille
This patch makes several related changes: * Changes the CCoinsView virtual methods (GetCoins, HaveCoins, ...) to be COutPoint/Coin-based rather than txid/CCoins-based. * Changes the chainstate db to a new incompatible format that is also COutPoint/Coin based. * Implements reconstruction code for hash_serialized_2. * Adapts the coins_tests unit tests (thanks to Russell Yanofsky). A side effect of the new CCoinsView model is that we can no longer use the (unreliable) test for transaction outputs in the UTXO set to determine whether we already have a particular transaction.
2017-06-01Remove ModifyCoins/ModifyNewCoinsPieter Wuille
2017-06-01Introduce new per-txout CCoinsViewCache functionsPieter Wuille
The new functions are: * CCoinsViewCache::AddCoin: Add a single COutPoint/Coin pair. * CCoinsViewCache::SpendCoin: Remove a single COutPoint. * AddCoins: utility function that invokes CCoinsViewCache::AddCoin for each output in a CTransaction. * AccessByTxid: utility function that searches for any output with a given txid. * CCoinsViewCache::AccessCoin: retrieve the Coin for a COutPoint. * CCoinsViewCache::HaveCoins: check whether a non-empty Coin exists for a given COutPoint. The AddCoin and SpendCoin methods will eventually replace ModifyCoins and ModifyNewCoins, AddCoins will replace CCoins::FromTx, and the new AccessCoins and HaveCoins functions will replace their per-txid counterparts. Note that AccessCoin for now returns a copy of the Coin object. In a later commit it will be change to returning a const reference (which keeps working in all call sites).
2017-05-26Report on-disk size in gettxoutsetinfoPieter Wuille
2017-03-03[cleanup] Remove coin age priority completely.Alex Morcos
Remove GetPriority and ComputePriority. Remove internal machinery for tracking priority in CTxMemPoolEntry.
2017-01-04Check FRESH validity in CCoinsViewCache::BatchWriteRussell Yanofsky
2017-01-04Merge #9107: Safer modify new coinsPieter Wuille
b50cd7a Fix dangerous condition in ModifyNewCoins. (Alex Morcos)
2017-01-04Fix dangerous condition in ModifyNewCoins.Alex Morcos
We were marking coins FRESH before being sure they were not overwriting dirty undo data. This condition was never reached in existing code because undo data was always flushed before UpdateCoins was called with new transactions, but could have been exposed in an otherwise safe refactor. Clarify in the comments the assumptions made in ModifyNewCoins. Add ability to undo transactions to UpdateCoins unit test. Thanks to Russ Yanofsky for suggestion on how to make logic clearer and fixing up the ccoins_modify_new test cases.
2016-12-31Increment MIT Licence copyright header year on files modified in 2016isle2983
Edited via: $ contrib/devtools/copyright_header.py update .
2016-09-20Fix relaypriority calculation errormaiiz
2016-06-07Use C++11 thread-safe static initializersPieter Wuille
2016-05-17Use SipHash-2-4 for CCoinsCache indexPieter Wuille
This is ~1.7x slower than the Lookup3-of-Xor-with-salt construct we were using before, but it is a primitive designed for exactly this.
2016-04-15txdb: Add Cursor() method to CCoinsView to iterate over UTXO setWladimir J. van der Laan
Add a method Cursor() to CCoinsView that returns a cursor which can be used to iterate over the whole UTXO set. - rpc: Change gettxoutsetinfo to use new Cursor method - txdb: Remove GetStats method - Now that GetStats is implemented in terms of Cursor, remove it.
2016-01-22Merge #7056: Save last db readWladimir J. van der Laan
8504867 Save the last unnecessary database read (Alex Morcos)
2015-12-13Bump copyright headers to 2015MarcoFalke
2015-12-01Add CCoinsViewCache::HaveCoinsInCache to check if a tx is cachedMatt Corallo
2015-12-01Add method to remove a tx from CCoinsViewCache if it is unchangedMatt Corallo
2015-11-19Change GetPriority calculation.Alex Morcos
Compute the value of inputs that already are in the chain at time of mempool entry and only increase priority due to aging for those inputs. This effectively changes the CTxMemPoolEntry's GetPriority calculation from an upper bound to a lower bound.
2015-11-18Save the last unnecessary database readAlex Morcos
It's possible coins with the same hash exist when you create a duplicate coinbase, so previously we were reading from the database to make sure we had the old coins cached so if we were to spend the new ones, the old ones would also be spent. This pull instead just marks the new coins as not fresh if they are from a coinbase, so if they are spent they will be written all the way down to the database anyway overwriting any duplicates.
2015-11-18Alter assumptions in CCoinsViewCache::BatchWriteAlex Morcos
Previously it would break if you flushed a parent cache while there was a child cache referring to it. This change will allow the flushing of parent caches.
2015-11-02ModifyNewCoins saves database lookupsAlex Morcos
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.
2015-07-20Separate core memory usage computation in core_memusage.hPieter Wuille
2015-05-11Keep track of memory usage in CCoinsViewCachePieter Wuille
2015-01-07Merge pull request #5597Wladimir J. van der Laan
e413457 Catch LevelDB errors during flush (Pieter Wuille) 02bced1 Bugfix: only track UTXO modification after lookup (Pieter Wuille)