This commit allows for the ability to lease an output to a particular ID
for a limited amount of time, ensuring that no other processes can use
said output for their coin selection needs. An output can either be
unlocked manually, or lazily whenever required.
Add and test functions which can be used to write optional transaction
labels to disk in their own bucket. These labels are keyed by txid and
write the labels to disk using-length value encoding scheme. Although
the length field is not required at present, it is added to allow future
extensibility without a migration.
This approach is chosen over adding this information to txRecords,
Because a migration would be required to add a field after the variable
Length serialized tx.
The put label function will overwrite existing labels if called more
than once for the same txid. User side validation of whether we want
to override this label should be performed by calling code. Labels must
be > 0 characters and <= 500 characters (an arbitrarily chosen limit).
This test ensures that there aren't any lingering unconfirmed records
for a transaction that existed within the store as unconfirmed before
becoming confirmed. At the moment, this is currently failing due to a
gap when moving a transaction from unconfirmed to confirmed within the
store. This will be resolved in a subsequent commit.
This commit ensures the wallet won't enter an inconsitent state
by checking tx confirmation before adding credit.
Without this fix, In the case the existing transaction is already
confirmed on-chain the flow updates the bucketUnminedCredits but
without adding en entry also to the bucketUnmined resulting in
inconsistent state.
In this commit, we address an issue with the wallet store where it'd be
possible for us to keep lingering unconfirmed transaction entries for an
output that has been spent by a different, confirmed transaction. This
was caused due to us removing all spending transaction entries for a
given output when removing conflicts. Since all of the entries would be
removed, we weren't able to retrieve the hashes of the remaining
spending transactions to remove their records as well. Instead, we
propose to only remove the entry for the specified spending transaction.
In this commit, we extend TestRemoveUnminedTx to also account for
checking the store's total balance (confirmed and unconfirmed). It
currently ensures that the UTXO state is correct, but as a sanity check,
we'll also ensure that balances are properly updated.
In this commit, we add a new test case to the wtxmgr store to ensure
that duplicate outputs don't exists within the store. It's possible for
this to happen if an output is marked as unconfirmed credit, then marked
as confirmed once it confirms, and once again marked as unconfirmed. It
can be marked as unconfirmed again due to the backend notifying the
client about this transaction. Ideally this should not happen, but the
root cause is much more involved. As a stop gap, we'll ensure that
outputs can be marked as unconfirmed credits more than once whatsoever.
As is, the test case fails, which proves that this is an issue. A later
commit will resolve this and the test case should pass.
In this commit, we add a set of double spend tests to ensure that we can
properly detect and handle them. At this point, we do not do this, but a
follow up commit will address this.
In this commit, we add a new method to the Store object that allows
callers to *manually* remove any conflicting transactions. At times,
it’s the case that while we were offline another transaction was
broadcast that double spends our own, or with the existence of RBF,
another replacement transaction was generated. In this case, when we
come back online, the tx will be rejected. Currently, we have no way of
removing such transaction sot avoid the retransmit-then-reject-dance.
This commit fixes that by adding RemoveUnminedTx.
While making these tests compile and pass, we ended up tripping on the
broken bolt cursor usage painfully discovered in dcrwallet, so i've
ported that fix over as well. Would have learned about that a whole
lot sooner if those tests were never disabled..
Since the coinbase maturity is now allowed to be defined per chain and
the old blockchain.CoinbaseMaturity constant has been removed, this
updates the code accordingly.
Also, update glide.lock to use the required version of btcd.
This updates all code to make use of the new chainhash package since the
old wire.ShaHash type and related functions have been removed in favor
of the abstracted package.
Also, while here, rename all variables that included sha in their name
to include hash instead.
Finally, update glide.lock to use the required version of btcd, btcutil,
and btcrpcclient.
This commit corrects various things found by the static checkers
(comments, unkeyed fields, return after some if/else).
Add generated files and legacy files to the whitelist to be ignored.
Catch .travis.yml up with btcd so goclean can be run.
This changes the wallet.Open function signature to remove the database
namespace parameters. This is done so that the wallet package itself
is responsible for the location and opening of these namespaces from
the database, rather than requiring the caller to open these ahead of
time.
A new wallet.Create function has also been added. This function
initializes a new wallet in an empty database, using the same
namespaces as wallet.Open will eventually use. This relieves the
caller from needing to manage wallet database namespaces explicitly.
Fixes#397.
