This command allows a user to increase the fee on a wallet transaction T, creating a "bumper" transaction B.
T must signal that it is BIP-125 replaceable.
T's change output is decremented to pay the additional fee. (B will not add inputs to T.)
T cannot have any descendant transactions.
Once B bumps T, neither T nor B's outputs can be spent until either T or (more likely) B is mined.
Includes code by @jonasschnelli and @ryanofsky
4e7e2e1 Update RPC argument names (John Newbery)
481f289 rpc: Named argument support for bitcoin-cli (Wladimir J. van der Laan)
9adb4e1 rpc: Argument name consistency (Wladimir J. van der Laan)
8d713f7 rpc: Named arguments for rawtransaction calls (Wladimir J. van der Laan)
37a166f rpc: Named arguments for wallet calls (Wladimir J. van der Laan)
78b684f rpc: Named arguments for mining calls (Wladimir J. van der Laan)
b8ebc59 rpc: Named arguments for net calls (Wladimir J. van der Laan)
2ca9dcd test: Add test for RPC named arguments (Wladimir J. van der Laan)
fba1a61 rpc: Named arguments for misc calls (Wladimir J. van der Laan)
286ec08 rpc: Add 'echo' call for testing (Wladimir J. van der Laan)
495eb44 rpc: Named arguments for blockchain calls (Wladimir J. van der Laan)
6f1c76a rpc: Support named arguments (Wladimir J. van der Laan)
5865d41 authproxy: Add support for RPC named arguments (Wladimir J. van der Laan)
5113474 wallet: Use CDataStream.data() (Wladimir J. van der Laan)
e2300ff bench: Use CDataStream.data() (Wladimir J. van der Laan)
adff950 dbwrapper: Use new .data() method of CDataStream (Wladimir J. van der Laan)
a2141e4 streams: Remove special cases for ancient MSVC (Wladimir J. van der Laan)
af4c44c streams: Add data() method to CDataStream (Wladimir J. van der Laan)
On repeated calls to SelectCoins we try to meet the fee necessary for the last transaction, the new fee required might be smaller, so increase our change by the difference if we can.
Once we've picked coins and dummy-signed the transaction to calculate fee, if we don't have sufficient fee, then try to meet the fee by reducing change before resorting to picking new coins.
Performing signing in the inner loop has terrible performance
when many passes through are needed to complete the selection.
Signing before the algorithm is complete also gets in the way
of correctly setting the fee (e.g. preventing over-payment when
the fee required goes down on the final selection.)
Use of the dummy might overpay on the signatures by a couple bytes
in uncommon cases where the signatures' DER encoding is smaller
than the dummy: Who cares?
The meaning is clear from the context, and we're inconsistent here.
Also save typing when using named arguments.
- `bitcoinaddress` -> `address`
- `bitcoinprivkey` -> `privkey`
- `bitcoinpubkey` -> `pubkey`
Fee estimation can just check its own mapMemPoolTxs to determine the same information. Note that now fee estimation for block processing must happen before those transactions are removed, but this shoudl be a speedup.
5394b39 Wallet: Split main logic from InitLoadWallet into CreateWalletFromFile (Luke Dashjr)
fb0c934 Wallet: Let the interval-flushing thread figure out the filename (Luke Dashjr)
cee1612 reduce number of lookups in TransactionWithinChainLimit (Gregory Sanders)
af9bedb Test for fix of txn chaining in wallet (Gregory Sanders)
5882c09 CreateTransaction: Don't return success with too-many-ancestor txn (Gregory Sanders)
0b2294a SelectCoinsMinConf: Prefer coins with fewer ancestors (Gregory Sanders)
This resolves an issue where a wallet transaction which failed to
relay previously because it couldn't make it into the mempool
will not try again until restart, even though mempool conditions
may have changed.
Abandoned and known-conflicted transactions are skipped.
Some concern was expressed that there may be users with many
unknown conflicts would waste a lot of CPU time trying to
add them to their memory pools over and over again. But I am
doubtful these users exist in any number, if they do exist
they have worse problems, and they can mitigate any performance
issue this might have by abandoning the transactions in question.
