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2018-03-13Support deserializing into temporariesPieter Wuille
Currently, the READWRITE macro cannot be passed any non-const temporaries, as the SerReadWrite function only accepts lvalue references. Deserializing into a temporary is very common, however. See for example things like 's >> VARINT(n)'. The VARINT macro produces a temporary wrapper that holds a reference to n. Fix this by accepting non-const rvalue references instead of lvalue references. We don't propagate the rvalue-ness down, as there are no useful optimizations that only apply to temporaries. Then use this new functionality to get rid of many (but not all) uses of the 'REF' macro (which casts away constness).
2018-01-03Increment MIT Licence copyright header year on files modified in 2017Akira Takizawa
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-
2017-09-16Refactor: Modernize disallowed copy constructors/assignmentDan Raviv
Use C++11's better capability of expressing an interface of a non-copyable class by publicly deleting its copy ctor and assignment operator instead of just declaring them private.
2017-06-28Merge #10558: Address nits from per-utxo changePieter Wuille
21d4afa12 Comment clarifications in coins.cpp (Alex Morcos) 3c8a9aeff Add belt-and-suspenders in DisconnectBlock (Alex Morcos) Tree-SHA512: d83e12ed71674faaaaebc03ffa1e2276984c35a29db419268ac9e14a45b33ccab716e3606dff8cfe1dcee4bec6e4794d2ca90341f10d5684be80e3fee61addf8
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
2017-06-27Comment clarifications in coins.cppAlex Morcos
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
2017-06-20Merge #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
2017-06-12Merge #10550: Don't return stale data from CCoinsViewCache::Cursor()Wladimir J. van der Laan
3ff1fa8 Use override keyword on CCoinsView overrides (Russell Yanofsky) 24e44c3 Don't return stale data from CCoinsViewCache::Cursor() (Russell Yanofsky) Tree-SHA512: 08699dae0925ffb9c018f02612ac6b7eaf73ec331e2f4f934f1fe25a2ce120735fa38596926e924897c203f7470e99f0a99cf70d2ce31ff428b105e16583a861
2017-06-09Be much more agressive in AccessCoin docs.Matt Corallo
While the current implementation is pretty free, there is a lot of possibility for this to blow up in our face with future changes, especially as the backing map gets tweaked.
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.
2017-06-09Remove unused Boost includespracticalswift
2017-06-08Use override keyword on CCoinsView overridesRussell Yanofsky
2017-06-07Don't return stale data from CCoinsViewCache::Cursor()Russell Yanofsky
CCoinsViewCache doesn't actually support cursor iteration returning the current contents of the cache, so raise an error when the cursor method is called instead of returning a cursor that iterates over stale data. Also update the gettxoutsetinfo RPC which was relying on the old behavior to be explicit about which view it is returning data about.
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.
2017-06-01[MOVEONLY] Move old CCoins class to txdb.cppPieter Wuille
It's only used for upgrading from the old database anymore.
2017-06-01Upgrade from per-tx database to per-txoutPieter Wuille
2017-06-01Pack Coin more tightlyPieter Wuille
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).
2017-05-26Introduce Coin, a single unspent outputPieter Wuille
2017-05-26Report on-disk size in gettxoutsetinfoPieter Wuille
2017-05-26Remove/ignore tx version in utxo and undoPieter Wuille
This makes the following changes: * In undo data and the chainstate database, the transaction nVersion field is removed from the data structures, always written as 0, and ignored when reading. * The definition of hash_serialized in gettxoutsetinfo is changed to no longer incude the nVersion field. It is renamed to hash_serialized_2 to avoid confusion. The new definition also includes transaction height and coinbase information, as this information was missing before. This depends on having a CHashVerifier-based undo data checksum verifier. Apart from changing the definition of serialized_hash, downgrading after using this patch is supported, as no release ever used the value of nVersion field in UTXO entries.
2017-04-21Switch CCoinsMap from boost to std unordered_mapPieter Wuille
2017-04-13Missing includesJorge Timón
2017-03-17Remove unused codepracticalswift
2017-03-03[cleanup] Remove coin age priority completely.Alex Morcos
Remove GetPriority and ComputePriority. Remove internal machinery for tracking priority in CTxMemPoolEntry.
2017-01-04Merge #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 .
2016-12-07Remove undefined FetchCoins method declarationRussell Yanofsky
2016-11-07Get rid of nType and nVersionPieter Wuille
Remove the nType and nVersion as parameters to all serialization methods and functions. There is only one place where it's read and has an impact (in CAddress), and even there it does not impact any of the recursively invoked serializers. Instead, the few places that need nType or nVersion are changed to read it directly from the stream object, through GetType() and GetVersion() methods which are added to all stream classes.
2016-11-07Make GetSerializeSize a wrapper on top of CSizeComputerPieter Wuille
Given that in default GetSerializeSize implementations created by ADD_SERIALIZE_METHODS we're already using CSizeComputer(), get rid of the specialized GetSerializeSize methods everywhere, and just use CSizeComputer. This removes a lot of code which isn't actually used anywhere. For CCompactSize and CVarInt this actually removes a more efficient size computing algorithm, which is brought back in a later commit.
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.
2015-11-28Merge pull request #6942Pieter Wuille
e482a7f Fix CCoins serialization documentation (Peter Josling)
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.
2015-11-04Fix CCoins serialization documentationPeter Josling
The docs talk about bits 2 and 4 instead of 2 and 3, and bits are being indexed from both 1 (describing nCode) and 0 (in second example). Changed to use zero-indexing for all.