after a successful sign and send, meaning that the logged hash fragment
would be different from the txid logged by "AddToWallet". This issue
occured when sending from transparent addresses, as utxo inputs must be
signed. It did not occur when sending from shielded addresses.
Only increment new notes on reindex
Addresses another issue in #1904.
When an existing one of our notes was found again, its cache was reset and it was re-witnessed. This would cause encountered notes to get out-of-sync with the otherwise-ignored newer notes, which could be a problem if the wallet data happens to be written out during a reindex.
Write witness caches when writing the best block
For steady-state operation, this reduces the average time between wallet disk
writes from once per block to once per hour.
On -rescan, witness caches are only written out at the end along with the best
block, increasing speed while ensuring that on-disk state is kept consistent.
Witness caches are now never recreated during a -reindex, on the assumption that
the blocks themselves are not changing (the chain is just being reconstructed),
and so the witnesses will remain valid.
Part of #1749.
Isolate verification to a ProofVerifier context object that allows verification behavior to be tuned by the caller.
This is an alternative foundation for #1892, i.e., #1892 will have to be changed if this PR is accepted.
I think this is a safer approach because it allows us to isolate verification behavior to a single object. This will come in handy when @arielgabizon finishes the batching code.
For steady-state operation, this reduces the average time between wallet disk
writes from once per block to once per hour.
On -rescan, witness caches are only written out at the end along with the best
block, increasing speed while ensuring that on-disk state is kept consistent.
Witness caches are now never recreated during a -reindex, on the assumption that
the blocks themselves are not changing (the chain is just being reconstructed),
and so the witnesses will remain valid.
Part of #1749.
Commit 2eeb6b randomized the order of input and output notes,
but this is now known to prevent the chaining of multiple joinsplits
in a single transaction. The root cause has yet to be determined.
This patch is a temporary fix and disables the shuffling of input
and output notes. It also adds a chained joinsplit test to the
python qa test suite.
Add z_sendmany rule that when coinbase utxos must be spent in their entirety, with no change
See #1616 - coinbase utxos must be consumed entirely, without any change, since there
is currently no way to specify a change address in z_sendmany.