* style: use clang-tidy style named parameters
* refactor: make IsTimeOutOfBounds testable by having current time be a parameter
* style: use x-> not (*x).
* refactor: make SelectCoinsGroupedByAddresses return a vector, remove out param
previous semantics was return false if the vecTally vector was empty. Now we just let the caller check if it is empty or not
* refactor: fix some sign-compare warnings
* refactor: consistently pre-declare stuff as struct / class inline with underlying type
* refactor: don't return const bool
* refactor: use ref to string
* refactor: use = default for CompactTallyItem
* refactor: adjust "initialization" ordering
* refactor: adjust how we handle negatives in GetProjectedMNPayees, use std::min
* refactor: don't bind a reference to a temporary value
* refactor: use a ref
* refactor: ensure attempt in SelectMemberForRecovery is non-negative.
* refactor: remove unused this capture
* refactor: fix numerous sign-compare warnings
* refactor: more consistently use size_t, use empty()
* Make numerous coinjoin functions constexpr
* remove empty function
Signed-off-by: Pasta <pasta@dashboost.org>
* remove InitStandardDenominations calls
Signed-off-by: Pasta <pasta@dashboost.org>
* use default constructors, add constexpr to CCoinJoinStatusUpdate constructor
Signed-off-by: Pasta <pasta@dashboost.org>
* remove default constructor
Signed-off-by: Pasta <pasta@dashboost.org>
* refactor: introduce ranges.h for prettier std algo. Also use it in dash core
* fix formatting, use ranges instead of std
* remove commented out code
* introduce ranges find_if_opt, count_if, find_if. Use them all, and more
* use std::accumulate
* capture everything so that threadsaftey analysis is happy
* fix linter
* fix linter
* remove pessimizing move
* include adjustments
* fix macOs build failure
Signed-off-by: pasta <pasta@dashboost.org>
* expcitly include array in spork.h
* sort includes in most files
* bls: use constexpr int instead of #define
* lint: bump c++ version to 17
* test: use BOOST_CHECK_EQUAL instead of BOOST_ASSERT, call boost assert in another location
* coinjoin: fix typo
* drop redundant LLMQType cast
* use numeric_limits instead of magic value
* net_processing.cpp whitespace fixes
* Add some const
* use std::all_of instead of raw for loop
* Introduce UNINITIALIZED_SESSION_ID and use it instead of a magic number
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
* Adjust coinjoin-client-options.* by making values atomic, removing CCriticalSection, and adjusting constructor to be default
* coinjoin-client.* adjust cs_deqsessions usage
* coinjoin add GUARDED_BY notations
* coinjoin make some values atomic
* coinjoin: move lock to where needed
* Ensure values are properly protected
* LOCK(cs_vecqueue) as needed
* Ensure vecOutputs is properly protected
Signed-off-by: pasta <pasta@dashboost.org>
Function CWallet::KeepKey requires locking as it has concurrent access to database and member nKeysLeftSinceAutoBackup.
Avoid data race when reading setInventoryTxToSend size by locking the read. If locking happens after the read, the size may change.
Lock cs_mnauth when reading verifiedProRegTxHash.
Make fRPCRunning atomic as it can be read/written from different threads simultaneously.
Make m_masternode_iqr_connection atomic as it can be read/written from different threads simultaneously.
Use a recursive mutex to synchronize concurrent access to quorumVvec.
Make m_masternode_connection atomic as it can be read/written from different threads simultaneously.
Make m_masternode_probe_connection atomic as it can be read/written from different threads simultaneously.
Use a recursive mutex in order to lock access to activeMasterNode.
Use a recursive mutex to synchronize concurrent access to skShare.
Guarded all mnauth fields of a CNode.
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
* instantsend: make stuff const where possible
Signed-off-by: pasta <pasta@dashboost.org>
* instantsend: remove unused `params`
Signed-off-by: pasta <pasta@dashboost.org>
* instantsend: combine two nested if's into one
Signed-off-by: pasta <pasta@dashboost.org>
* instantsend: use auto in spots where possible and clear
Signed-off-by: pasta <pasta@dashboost.org>
* coinjoin: make IsValidStructure const
Signed-off-by: pasta <pasta@dashboost.org>
* coinjoin: divide by an integer to avoid double implicit conversions
Signed-off-by: pasta <pasta@dashboost.org>
* coinjoin: make unused parameter unnamed
Signed-off-by: pasta <pasta@dashboost.org>
* quorums.* use const and use references where possible
Signed-off-by: pasta <pasta@dashboost.org>
* quorums.h don't return const when returning by value
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_blockprocessor.cpp remove redundant casts and combine two if statements
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_blockprocessor.cpp make values const
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_chainlocks.cpp access static function statically
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_chainlocks.h remove commented out include
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_commitment.cpp remove redundant casts
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_debug.cpp remove redundant casts and add const
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_dkgsession.cpp use const where possible
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_dkgsessionhandler.cpp use const where possible
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_dkgsessionhandler.cpp don't use std::move which apparently prevents "copy elision" in this instance
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_dkgsessionhandler.cpp use const
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_dkgsessionmgr.cpp misc refactoring
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_signing.* misc refactoring
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_signing_shares.* misc refactoring
Signed-off-by: pasta <pasta@dashboost.org>
* quorums_utils.cpp misc refactoring
Signed-off-by: pasta <pasta@dashboost.org>
232f96f5c8a3920c09db92f4dbac2ad7d10ce8cf doc: Add release notes for -avoidpartialspends (Karl-Johan Alm)
e00b4699cc6d2ee5697d38dd6607eb2631c9b77a clean-up: Remove no longer used ivars from CInputCoin (Karl-Johan Alm)
43e04d13b1ffc02b1082176e87f420198b40c7b1 wallet: Remove deprecated OutputEligibleForSpending (Karl-Johan Alm)
0128121101fb3ee82f3abd3973a967a4226ffe0e test: Add basic testing for wallet groups (Karl-Johan Alm)
59d6f7b4e2f847ec1f2ff46c84e6157655984f85 wallet: Switch to using output groups instead of coins in coin selection (Karl-Johan Alm)
87ebce25d66952f5ce565bb5130dcf5e24049872 wallet: Add output grouping (Karl-Johan Alm)
bb629cb9dc567cc819724d9f4852652926e60cbf Add -avoidpartialspends and m_avoid_partial_spends (Karl-Johan Alm)
65b3eda458221644616d0fdd6ba0fe01bdbce893 wallet: Add input bytes to CInputCoin (Karl-Johan Alm)
a443d7a0ca333b0bae63e04b5d476f9ad9c7aeac moveonly: CoinElegibilityFilter into coinselection.h (Karl-Johan Alm)
173e18a289088c6087ba6fac708e322aa63b7a94 utils: Add insert() convenience templates (Karl-Johan Alm)
Pull request description:
This PR adds an optional (off by default) `-avoidpartialspends` flag, which changes coin select to use output groups rather than outputs, where each output group corresponds to all outputs with the same destination.
It is a privacy improvement, as each time you spend some output, any other output that is publicly associated with the destination (address) will also be spent at the same time, at the cost of fee increase for cases where coin select without group restriction would find a more optimal set of coins (see example below).
For regular use without address reuse, this PR should have no effect on the user experience whatsoever; it only affects users who, for some reason, have multiple outputs with the same destination (i.e. address reuse).
Nodes with this turned off will still try to avoid partial spending, if the fee of the resulting transaction is not greater than the fee of the original transaction.
Example: a node has four outputs linked to two addresses `A` and `B`:
* 1.0 btc to `A`
* 0.5 btc to `A`
* 1.0 btc to `B`
* 0.5 btc to `B`
The node sends 0.2 btc to `C`. Without `-avoidpartialspends`, the following coin selection will occur:
* 0.5 btc to `A` or `B` is picked
* 0.2 btc is output to `C`
* 0.3 - fee is output to (unique change address)
With `-avoidpartialspends`, the following will instead happen:
* Both of (0.5, 1.0) btc to `A` or `B` is picked (one or the other pair)
* 0.2 btc is output to `C`
* 1.3 - fee is output to (unique change address)
As noted, the pro here is that, assuming nobody sends to the address after you spend from it, you will only ever use one address once. The con is that the transaction becomes slightly larger in this case, because it is overpicking outputs to adhere to the no partial spending rule.
This complements #10386, in particular it addresses @luke-jr and @gmaxwell's concerns in https://github.com/bitcoin/bitcoin/pull/10386#issuecomment-300667926 and https://github.com/bitcoin/bitcoin/pull/10386#issuecomment-302361381.
Together with `-avoidreuse`, this fully addresses the concerns in #10065 I believe.
Tree-SHA512: 24687a4490ba59cf4198ed90052944ff4996653a4257833bb52ed24d058b3e924800c9b3790aeb6be6385b653b49e304453e5d7ff960e64c682fc23bfc447621
# Conflicts:
# src/Makefile.am
# src/bench/coin_selection.cpp
# src/wallet/coincontrol.h
# src/wallet/coinselection.cpp
# src/wallet/coinselection.h
# src/wallet/init.cpp
# src/wallet/test/coinselector_tests.cpp
# src/wallet/wallet.cpp
# src/wallet/wallet.h
# test/functional/test_runner.py
* Simple changes, mostly just includes
* Continued include changes combined with using pointers to avoid including more than necessary in headers
* remove dup include
* masternode-utils.cpp include net.h in all builds
* resolve linter -7 +11
* drop quorums.h from dkgsessionhandler.cpp
* Add `<utilstrencodings.h>`
* Initialize lastMNListForVotingKeys
* Refactor GetMinedCommitment to return sharedptr
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
