is expected as we shut down the executor immediately.
If not thrown at shutdown or exception is not a RejectedExecutionException
we log a warning and re-throw the exception (to avoid change of behaviour
of current version). The exception is likely not handled by callers and goes up to
the uncaught exception handler.
Prevent a "URI is not hierarchical" IllegalArgumentException from the
expression, 'new File(dirUrl.toURI())', which occurs on Linux & Windows
when listing the resource directory of BSQ blocks. Adapt a solution from
StackOverflow which uses two separate code paths depending on the
environment, into the new method 'FileUtil::listResourceDirectory'.
The issue is caused by the resource URL taking one of the two forms:
file:/Users/[USER]/Java/bisq/bisq/p2p/out/production/resources/BsqBlocks_BTC_MAINNET
jar:file:...p2p.jar!/BsqBlocks_BTC_MAINNET
depending on whether the system is OSX or not.
Move timeout before shutdown sequence starts and use a Timer thread instead of
UserThread to avoid that in case the UserThread gets blocked that the timeout
would not get triggered.
Reduce timeout from 20 sec. to 10 sec.
Move timeout before shutdown sequence starts and use a Timer thread instead of
UserThread to avoid that in case the UserThread gets blocked that the timeout
would not get triggered.
Reduce timeout from 20 sec. to 10 sec.
is expected as we shut down the executor immediately.
If not thrown at shutdown or exception is not a RejectedExecutionException
we log a warning and re-throw the exception (to avoid change of behaviour
of current version). The exception is likely not handled by callers and goes up to
the uncaught exception handler.
Prevent a "URI is not hierarchical" IllegalArgumentException from the
expression, 'new File(dirUrl.toURI())', which occurs on Linux & Windows
when listing the resource directory of BSQ blocks. Adapt a solution from
StackOverflow which uses two separate code paths depending on the
environment, into the new method 'FileUtil::listResourceDirectory'.
The issue is caused by the resource URL taking one of the two forms:
file:/Users/[USER]/Java/bisq/bisq/p2p/out/production/resources/BsqBlocks_BTC_MAINNET
jar:file:...p2p.jar!/BsqBlocks_BTC_MAINNET
depending on whether the system is OSX or not.
1. Reorder the PoW fields in the 'Filter' proto by field index, instead
of contextually.
2. Deduplicate expression for 'pow' & replace if-block with boolean op
to simplify 'FilterManager::isProofOfWorkValid'.
3. Avoid slightly confusing use of null char as a separator to prevent
hashing collisions in 'EquihashProofOfWorkService::getChallenge'. Use
comma separator and escape the 'itemId' & 'ownerId' arguments instead.
(based on PR #5858 review comments)
Remove all the 'challengeValidation', 'difficultyValidation' and
'testDifficulty' BiPredicate method params from 'HashCashService' &
'ProofOfWorkService', to simplify the API. These were originally
included to aid testing, but turned out to be unnecessary.
Patches committed on behalf of @chimp1984.
Change the type of the 'difficulty' field in the Filter & ProofOfWork
proto objects from int32/bytes to double and make it use a linear scale,
in place of the original logarithmic scale which counts the (effective)
number of required zeros.
This allows fine-grained difficulty control for Equihash, though for
Hashcash it simply rounds up to the nearest power of 2 internally.
NOTE: This is a breaking change to PoW & filter serialisation (unlike
the earlier PR commits), as the proto field version nums aren't updated.
Add an abstract base class, 'ProofOfWorkService', for the existing PoW
implementation 'HashCashService' and a new 'EquihashProofOfWorkService'
PoW implementation based on Equihash-90-5 (which has 72 byte solutions &
5-10 MB peak memory usage). Since the current 'ProofOfWork' protobuf
object only provides a 64-bit counter field to hold the puzzle solution
(as that is all Hashcash requires), repurpose the 'payload' field to
hold the Equihash puzzle solution bytes, with the 'challenge' field
equal to the puzzle seed: the SHA256 hash of the offerId & makerAddress.
Use a difficulty scale factor of 3e-5 (derived from benchmarking) to try
to make the average Hashcash & Equihash puzzle solution times roughly
equal for any given log-difficulty/numLeadingZeros integer chosen in the
filter.
NOTE: An empty enabled-version-list in the filter defaults to Hashcash
(= version 0) only. The new Equihash-90-5 PoW scheme is version 1.
Add a numeric version field to the 'ProofOfWork' protobuf object, along
with a list of allowed version numbers, 'enabled_pow_versions', to the
filter. The versions are taken to be in order of preference from most to
least preferred when creating a PoW, with an empty list signifying use
of the default algorithm only (that is, version 0: Hashcash).
An explicit list is used instead of an upper & lower version bound, in
case a new PoW algorithm (or changed algorithm params) turns out to
provide worse resistance than an earlier version.
(The fields are unused for now, to be enabled in a later commit.)
Replace 'BiFunction<T, U, Boolean>' with the primitive specialisation
'BiPredicate<T, U>' in HashCashService & FilterManager.
As part of this, replace similar predicate constructs found elsewhere.
NOTE: This touches the DAO packages (trivially @ VoteResultService).
1. Reorder the PoW fields in the 'Filter' proto by field index, instead
of contextually.
2. Deduplicate expression for 'pow' & replace if-block with boolean op
to simplify 'FilterManager::isProofOfWorkValid'.
3. Avoid slightly confusing use of null char as a separator to prevent
hashing collisions in 'EquihashProofOfWorkService::getChallenge'. Use
comma separator and escape the 'itemId' & 'ownerId' arguments instead.
(based on PR #5858 review comments)
When doing a resync from genesis the number of blocks is limited to 6000
so that requires lots of requests and with that increases risk of broken
connections. Giving more tolerance for retries avoids that the user has
to restart the app.
When syncing from genesis the number of blocks are limited so we get the
`onParseBlockCompleteAfterBatchProcessing` called each time when the received
blocks are processed, and as we are not at wallet height we repeat requesting
blocks. But the new check for the BTC recipient triggers a resync from resource call.
We add now a check that we do this check only once the wallet is synced and our
block height from dao state matches wallet blockheight.
- At genesis we use the genesis height for request (not height+1)
- If wallet is not synced yet we do not call onParseBlockChainComplete (as it was before)
We added 1 as with the lite monitor mode we persist the most recent block,
thus we request with the start height for the next block.
But that cause a problem at a DAO full mode which has lite monitor mode set
as then the block parsing would not be triggered.
We refactor it so that we take the chainHeight from the dao state
directly and add 1 at the requests.
We add a check if we are at chain tip, and if so we skip requests
and call the onParseBlockChainComplete directly.
