From:
```
1) for-each tx in wallet : call CopyPreviousWitnesses.
2) for-each tx in block:
a) for-each note in tx:
a1) for-each tx in wallet : call AppendNoteCommitment.
a2) if note is mine : call WitnessNoteIfMine.
3) for-each tx in wallet : call UpdateWitnessHeights.
```
To:
```
1) for-each tx in block:
a) gather note commitments in vecComm.
b) witness note if ours.
2) for-each shield tx in wallet:
a) copy the previous witness.
b) append vecComm notes commitment.
c) Update witness last processed height.
```
`zcbenchmark` internally loops within the same process to run the same
benchmark multiple times. This meant it was being caught up in the
global validity cache, giving faster results for every iteration except
the first. This was not noticeable for the historic slow transparent
block, but became noticeable once we started caching Sapling and Orchard
bundle validity in zcash/zcash#6073.
As the intention of the benchmarks is to measure the worst case where
the block in question has not had any of its transactions observed
before (as is the case for IBD), we now disable cache storage if calling
`ConnectBlock` from a slow block benchmark.
-BEGIN VERIFY SCRIPT-
sed -i 's/insecure_randbits(1)/insecure_randbool()/g' src/test/*_tests.cpp
sed -i 's/insecure_randrange(2)/insecure_randbool()/g' src/test/*_tests.cpp
sed -i 's/insecure_randrange(2)/insecure_randbool()/g' src/gtest/test_*.cpp
sed -i 's/insecure_randrange(4)/insecure_randbits(2)/g' src/test/*_tests.cpp
sed -i 's/insecure_randrange(32)/insecure_randbits(5)/g' src/test/*_tests.cpp
sed -i 's/insecure_randrange(256)/insecure_randbits(8)/g' src/test/*_tests.cpp
-END VERIFY SCRIPT-
Zcash: Added gtests to script.
(cherry picked from commit bitcoin/bitcoin@2fcd9cc86b)
Zcash: Excludes changes to files we don't have, and removes the
duplicate definitions in `src/gtest/utils.h`.
(cherry picked from commit bitcoin/bitcoin@124d13a58c)
This is in preparation for removing the ability to generate
Sprout outputs from z_shieldcoinbase. Once that is complete,
we will no longer be able to use `z_shieldcoinbase` for test
setup for uses of Sprout funds; instead, the persisted blockchain
state created in this commit will be used for tests that require
the use of Sprout funds.
This brings the test framework into line with how Sprout funds
are now used on mainnet and testnet; existing Sprout funds may
be spent, and Sprout change may be created, but no funds may
be transfered into the Sprout pool, since the activation of
ZIP 211.
This change improves clock management for zcashd by ensuring
that all clock methods (obtaining seconds, milliseconds, and
microseconds since the epoch) agree under testing conditions
using `-mocktime`, and also adds a feature that allows tests
to specify an offset to the system clock; this is useful to
allow comprehensive testing of the "timejacking attack mitigation"
consensus rules.
This adds two new CuckooCaches in validation, each caching whether all
of a transaction bundle's proofs and signatures were valid.
Bundles which match the validation cache never have proofs or signatures
added to the batch validators. For blocks where all transactions have
been previously observed in the mempool, the final validation of the
batches should be a no-op.
Part of zcash/zcash#6049.
Once a note has been spent for at least 100 blocks, the wallet will not
see that spend be rolled back, as the node itself will reject rollbacks
of that magnitude. We can therefore stop tracking witnesses for these
notes, improving the performance of block scanning.
Part of zcash/zcash#6052.
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
Co-authored-by: Kris Nuttycombe <kris@nutty.land>
furszy
Kris Nuttycombe
Daira Hopwood
Jack Grigg
str4d
Pieter Wuille
Kris Nuttycombe
str4d
zancas
instagibbs