Introduce a PlatformStyle to handle platform-specific customization of
the UI.
This replaces 'scicon', as well as #ifdefs to determine whether to place
icons on buttons.
The selected PlatformStyle defaults to the platform that the application
was compiled on, but can be overridden from the command line with
`-uiplatform=<x>`.
Also fixes the warning from #6328.
Lets nodes advertise that they offer bloom filter support explicitly.
The protocol version bump allows SPV nodes to assume that NODE_BLOOM is
set if NODE_NETWORK is set for pre-70002 nodes.
Also adds an undocumented option to turn bloom filter support off for
testing purposes. Nodes attempting to use bloom filters are immediately
dropped so as to not waste their bandwidth.
ensure backward compatible service bits
update protocol version to 70004
Changed AuxPoW parent block hashing to use Scrypt rather than SHA256 hash.
Update chain parameters to match Dogecoin
Move CheckProofOfWork into dogecoin.cpp and rename it to CheckAuxPowProofOfWork.
Add operator overrides to CBlockVersion so that naive usage operates on the underlying version without chain ID or flags.
Modify RPC mining to more closely match existing submitblock() structure
Includes the following commits:
commit 2ea1b5cd8cf2bdd08e43ae39fb76352eebe14895
commit f2a8220c34275f022f02d81e9e84d4cec33bd51c
commit 84b8b56113e6057b0253475b83e797dc1fed2eed
commit 8471d5db221f145f5a40022ed1897c1b996b628e
commit 2f125ad0a67e1b8f71b18a14a3b41d7e577391d1
commit e01dbc3608703b4cb4e9882738125f2b7816cdb8
commit f0421312631cd44669f9f84d339a0c470b4423b9
commit 1fd522db5dfddfd0e1b0c794b82fae2cc7bdb099
commit 71f63ad99f70ff6461c795fd728aea16aa1008f8
commit a7c44d98a8ded4df0e8455c4c5629b1a5b303bbf
commit e1d7b4fc15addf3dfeb3853fa66230a8bdacd75f
commit d016f2fa02572fd340129176b942b3f19bd5260b
commit f4716e5a168a697afce854a37350fdae0988bdd8
commit 03a575e3b13bf06cbb0a007d6672b05d2085c26e
commit d7ea37444bd9e9ac461a3dda0b16afefd160b062
commit db22affa01e050ff847a12e20c83b88952d80b59
commit 9b7e14986655f914b2d0903ca1d79367c92c6c7e
commit e21034f9c124893d5b9631e9ca231b0b9ede3d52
Changes are as below:
Wrap CBlockHeader::nVersion into a new class (CBlockVersion). This allows to take care of interpreting the field into a base version, auxpow flag and the chain ID.
Update getauxblock.py for new 'generate' RPC call.
Add 'auxpow' to block JSON.
Accept auxpow as PoW verification.
Add unit tests for auxpow verification.
Add check for memory-layout of CBlockVersion.
Weaken auxpow chain ID checks for the testnet.
Allow Params() to overrule when to check the auxpow chain ID and for legacy blocks. Use this to disable the checks on testnet.
Introduce CPureBlockHeader.
Split the block header part that is used by auxpow and the "real" block header (that uses auxpow) to resolve the cyclic dependency between the two.
Differentiate between uint256 and arith_uint256.
This change was done upstream, modify the auxpow code.
Add missing lock in auxpow_tests.
Fix REST header check for auxpow headers.
Those can be longer, thus take that into account. Also perform the check actually on an auxpow header.
Correctly set the coinbase for getauxblock results.
Call IncrementExtraNonce in getauxblock so that the coinbase is actually initialised with the stuff it should be. (BIP30 block height and COINBASE_FLAGS.)
Implement getauxblock plus regression test.
Turn auxpow test into FIXTURE test.
This allows using of the Params() calls.
Move CMerkleTx code to auxpow.cpp.
Otherwise we get linker errors when building without wallet.
Fix rebase with BIP66.
Update the code to handle BIP66's nVersion=3.
Enforce that auxpow parent blocks have no auxpow block version.
This is for compatibility with namecoind. See also https://github.com/namecoin/namecoin/pull/199.
Move auxpow-related parameters to Consensus::Params.
The partition checking code was using chainActive timestamps
to detect partitioning; with headers-first syncing, it should use
(and with this pull request, does use) pIndexBestHeader timestamps.
Fixes issue #6251
Github-Pull: #6256
Rebased-From: 65b9454503
Make it possible to opt-out of the centralized alert system by providing
an option `-noalerts` or `-alerts=0`. The default remains unchanged.
This is a gentler form of #6260, in which I went a bit overboard by
removing the alert system completely.
I intend to add this to the GUI options in another pull after this.
Github-Pull: #6274
Rebased-From: 02a6702a82
In some corner cases, it may be possible for recent blocks to end up in
the same block file as much older blocks. Previously, the pruning code
would stop looking for files to remove upon first encountering a file
containing a block that cannot be pruned, now it will keep looking for
candidate files until the target is met and all other criteria are
satisfied.
This can result in a noncontiguous set of block files (by number) on
disk, which is fine except for during some reindex corner cases, so
make reindex preparation smarter such that we keep the data we can
actually use and throw away the rest. This allows pruning to work
correctly while downloading any blocks needed during the reindex.
Rebased-From: c257a8c9a6
Github-Pull: #6221
To protect privacy, do not use UPNP when a proxy is set. The user may
still specify -listen=1 to listen locally (for a hidden service), so
don't rely on this happening through -listen.
Fixes#2927.
86a5f4b Relocate calls to CheckDiskSpace (Alex Morcos)
67708ac Write block index more frequently than cache flushes (Pieter Wuille)
b3ed423 Cache tweak and logging improvements (Pieter Wuille)
fc684ad Use accurate memory for flushing decisions (Pieter Wuille)
046392d Keep track of memory usage in CCoinsViewCache (Pieter Wuille)
540629c Add memusage.h (Pieter Wuille)
Create a monitoring task that counts how many blocks have been found in the last four hours.
If very few or too many have been found, an alert is triggered.
"Very few" and "too many" are set based on a false positive rate of once every fifty years of constant running with constant hashing power, which works out to getting 5 or fewer or 48 or more blocks in four hours (instead of the average of 24).
Only one alert per day is triggered, so if you get disconnected from the network (or are being Sybil'ed) -alertnotify will be triggered after 3.5 hours but you won't get another -alertnotify for 24 hours.
Tested with a new unit test and by running on the main network with -debug=partitioncheck
Run test/test_bitcoin --log_level=message to see the alert messages:
WARNING: check your network connection, 3 blocks received in the last 4 hours (24 expected)
WARNING: abnormally high number of blocks generated, 60 blocks received in the last 4 hours (24 expected)
The -debug=partitioncheck debug.log messages look like:
ThreadPartitionCheck : Found 22 blocks in the last 4 hours
ThreadPartitionCheck : likelihood: 0.0777702
a8cdaf5 checkpoints: move the checkpoints enable boolean into main (Cory Fields)
11982d3 checkpoints: Decouple checkpoints from Params (Cory Fields)
6996823 checkpoints: make checkpoints a member of CChainParams (Cory Fields)
9f13a10 checkpoints: store mapCheckpoints in CCheckpointData rather than a pointer (Cory Fields)
Connecting the chain can take quite a while.
All the while it is still showing `Loading wallet...`.
Add an init message to inform the user what is happening.
libsecp256k1's API changed, so update key.cpp to use it.
Libsecp256k1 now has explicit context objects, which makes it completely thread-safe.
In turn, keep an explicit context object in key.cpp, which is explicitly initialized
destroyed. This is not really pretty now, but it's more efficient than the static
initialized object in key.cpp (which made for example bitcoin-tx slow, as for most of
its calls, libsecp256k1 wasn't actually needed).
This also brings in the new blinding support in libsecp256k1. By passing in a random
seed, temporary variables during the elliptic curve computations are altered, in such
a way that if an attacker does not know the blind, observing the internal operations
leaks less information about the keys used. This was implemented by Greg Maxwell.
This adds a -prune=N option to bitcoind, which if set to N>0 will enable block
file pruning. When pruning is enabled, block and undo files will be deleted to
try to keep total space used by those files to below the prune target (N, in
MB) specified by the user, subject to some constraints:
- The last 288 blocks on the main chain are always kept (MIN_BLOCKS_TO_KEEP),
- N must be at least 550MB (chosen as a value for the target that could
reasonably be met, with some assumptions about block sizes, orphan rates,
etc; see comment in main.h),
- No blocks are pruned until chainActive is at least 100,000 blocks long (on
mainnet; defined separately for mainnet, testnet, and regtest in chainparams
as nPruneAfterHeight).
This unsets NODE_NETWORK if pruning is enabled.
Also included is an RPC test for pruning (pruning.py).
Thanks to @rdponticelli for earlier work on this feature; this is based in
part off that work.
