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>
Leaving the main thread unnamed causes it to be displayed as the executable name (i.e. `zcashd`)
or command line in process monitoring tools. fixes#6066
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
This switches the Merkle tree logic for blocks to one that runs in constant (small) space.
The old code is moved to tests, and a new test is added that for various combinations of
block sizes, transaction positions to compute a branch for, and mutations:
* Verifies that the old code and new code agree for the Merkle root.
* Verifies that the old code and new code agree for the Merkle branch.
* Verifies that the computed Merkle branch is valid.
* Verifies that mutations don't change the Merkle root.
* Verifies that mutations are correctly detected.
(cherry picked from commit bitcoin/bitcoin@eece63fa72)
Assume that when a wallet transaction has a valid block hash and transaction position
in it, the transaction is actually there. We're already trusting wallet data in a
much more fundamental way anyway.
To prevent backward compatibility issues, a new record is used for storing the
block locator in the wallet. Old wallets will see a wallet file synchronized up
to the genesis block, and rescan automatically.
(cherry picked from commit bitcoin/bitcoin@391dff16fe)
Identifiers beginning with an underscore followed immediately by an uppercase letter are reserved.
(cherry picked from commit bitcoin/bitcoin@bc70ab5dff)
Zcash: We merged the other half of this in zcash/zcash@36463d42c0.
This moves the SignatureCacheHasher to the sigcache header, out of the anonymous
namespace, so that the tests can import it.
(cherry picked from commit bitcoin/bitcoin@f9c88079df)
In Olaoluwa Osuntokun's recent protocol proposal they were using a
mod in an inner loop. I wanted to suggest a normative protocol
change to use the trick we use here, but to find an explanation
of it I had to dig up the PR on github. After I posted about it
several other developers commented that it was very interesting
and they were unaware of it.
I think ideally the code should be self documenting and help
educate other contributors about non-obvious techniques that
we use. So I've written a description of the technique with
citations for future reference.
(cherry picked from commit bitcoin/bitcoin@dd869c60ca)
SQUASHME: Change cuckoocache to only work for powers of two, to avoid mod operator
SQUASHME: Update Documentation and simplify logarithm logic
SQUASHME: OSX Build Errors
SQUASHME: minor Feedback from sipa + bluematt
SQUASHME: DOCONLY: Clarify a few comments.
(cherry picked from commit bitcoin/bitcoin@c9e69fbf39)
Pieter Wuille
Kris Nuttycombe
Kris Nuttycombe
str4d
str4d
Jack Grigg
zancas
instagibbs
Daira Hopwood
Dan Raviv
Jeremy Rubin
Hennadii Stepanov
Jon Layton
practicalswift
Gregory Maxwell