e4d0b44 Consistently log CValidationState on failure (Ben Woosley)
Pull request description:
This replaces potential silent failures and partial logging with full logging. Seems providing at least minimal visibility to the failure is a good practice. E.g. `FlushStateToDisk` can return a rare but meaningful out of disk space error that would be better to note than leave out.
Note many of these are related to `ActivateBestChain` or `FlushStateToDisk`. Only a few cases of ignored state remain, e.g. LoadExternalBlockFile and RelayWalletTransaction, where I expect logging would likely be spammy.
Tree-SHA512: fb0e521039e5a5250cd9c82e7a8676423b5e3899d495649c0e71752059d1984e5175f556386ade048f51a7d59f5c8e467df7fe91d746076f97d24c000ccf7891
cf02779 Add logging and error handling for file syncing (Wladimir J. van der Laan)
Pull request description:
Add logging and error handling inside, and outside of FileCommit.
Functions such as fsync, fdatasync will return error in case of hardware I/O errors, and ignoring this means it can silently continue through data corruption.
(c.f. https://lwn.net/SubscriberLink/752063/12b232ab5039efbe/)
EINVAL is handled specially to avoid crashing out on (network, fuse) filesystems that don't handle `f[data]sync`.
I checked that the syncing inside leveldb is already generating an I/O error as appropriate.
Tree-SHA512: 64cc9bbedca3ecc97ff4bac0a7b7ac6526a7ed763c66f6786d03ca4f2e9e366e42b152cb908299c060448d98ca39ff03395280bffaca51d592e728aa2516f5dd
Add logging and error handling inside, and outside of FileCommit.
Functions such as fsync, fdatasync will return error in case of hardware
I/O errors, and ignoring this means it can silently continue through
data corruption. (c.f.
https://lwn.net/SubscriberLink/752063/12b232ab5039efbe/)
3cc9094 scripted-diff: Rename CChainState::g_failed_blocks to m_failed_blocks (Ben Woosley)
Pull request description:
To reflect its actual status as a member rather than a global value.
g_failed_blocks was previously global: 2862aca40f
Tree-SHA512: a0e679a151e0fb70d245a7a1821449d0a4738f5ba503abca9f19d9cfbcbb0e72a1598e3364e29775b0c203acd6d04d882d2788208f685edc57aaba5e946fde3b
8b56fc0b91 [qa] Test that v0 segwit outputs can't be spent pre-activation (Suhas Daftuar)
ccb8ca42a4 Always enforce SCRIPT_VERIFY_WITNESS with P2SH (Suhas Daftuar)
5c31b20a35 [qa] Remove some pre-activation segwit tests (Suhas Daftuar)
95749a5836 Separate NULLDUMMY enforcement from SEGWIT enforcement (Suhas Daftuar)
ce650182f4 Use P2SH consensus rules for all blocks (Suhas Daftuar)
Pull request description:
As discussed at the IRC meeting back in October (https://botbot.me/freenode/bitcoin-core-dev/2017-10-12/?msg=92231929&page=2), I had looked into the feasibility of enforcing P2SH and SCRIPT_VERIFY_WITNESS back to the genesis block.
The P2SH change is pretty straightforward -- there was only one historical block on mainnet that violated the rule, so I carved out an exception to it, similar to the way we have exceptions for the BIP30 violators.
The segwit change is not entirely as clear. The code changes themselves are relatively straightforward: we can just always turn on SCRIPT_VERIFY_WITNESS whenever P2SH is active. However conceptually, this amounts to splitting up BIP141 into two parts, the part that implements new script rules, and the part that handles witness commitments in blocks.
Arguably though the script rules are really defined in BIP 143 anyway, and so this really amounts to backdating BIP 143 -- script rules for v0 segwit outputs -- back to genesis. So maybe conceptually this isn't so bad...
I don't feel strongly about this change in either direction; I started working on it because I was searching for a way to simplify the way we understand and implement the consensus rules around segwit, but I'm not yet sure whether I think this achieves anything toward that goal.
ping @TheBlueMatt
Tree-SHA512: 73551d4a983eb9792c7ac67f56005822528ac4d1fd52c27cee6d305ebee953f69687ef4ddee8bdc0fec77f77e6b5a9d669750793efee54c076533a095e233042
Seems providing at least minimal visibility to the failure is a good practice.
The only remaining ignored state is in LoadExternalBlockFile, where logging
would likely be spammy.
To reflect its actual status as a member rather than a global value.
g_failed_blocks was previously global: 2862aca40f
-BEGIN VERIFY SCRIPT-
sed -i 's/g_failed_blocks/m_failed_blocks/g' src/validation.cpp
-END VERIFY SCRIPT-
0ef7b40 [doc] Fix comment in FindForkInGlobalIndex (James O'Beirne)
Pull request description:
The comment erroneously implies that we're searching `chainActive` for the
first block common to `locator`, but we're using the parameter `chain`.
Tree-SHA512: 42ba0fb378597820bdf1eaff1e3e284097baa312e7dd8448421c8c71aa91c353ea6c840860afcb7725f392431f3134d4feb271b96ab7058a62f84f48e468e714
This commit moves P2SH activation back to the genesis block, with
a hardcoded exception for the one historical block in the chain that
violated this rule.
4a6c0e3dcf Modernize best block mutex/cv/hash variable naming (Pieter Wuille)
45dd135039 Fix csBestBlock/cvBlockChange waiting in rpc/mining (Pieter Wuille)
Pull request description:
This is an alternative to #11694.
It reintroduces a uint256 variable with the best block hash, protected by csBestBlock, and only updated while holding it.
Also rename the involved variable to modern guidelines, as there are very few uses.
Tree-SHA512: 826a86c7d3cee7fe49f99f4398ae99e81cb0563197eaeba77306a3ca6072b67cdb932bc35720fc0f99c2a57b218efa029d0b8bdfb240591a629b2e90efa3199d
FlushStateToDisk(...) won't do anything besides check if we need to prune if
FLUSH_STATE_NONE is given. We avoid reading the variable fCheckForPruning
which is guarded by the mutex cs_LastBlockFile.
0e7c52d Shut down if trying to connect a corrupted block (Suhas Daftuar)
Pull request description:
(Updated OP after reworking the approach)
Shut down if a corrupted block is found in ConnectBlock(). This prevents an infinite loop trying to connect such a block, and alerts the node operator that there may be potential hardware failure.
Tree-SHA512: f20d56aa9d36d6eeff4c3d13c0fbd14f06a57701bd13c2416d36f0cc4235f81f752139e336a073617e8e803782c5096c960108af122b19a51227de512e9095ee
d207207 [logging] add lint-logs.sh to check for newline termination. (John Newbery)
5c21e6c [logging] Comment all continuing logs. (John Newbery)
Pull request description:
Check that all calls to LogPrintf() are terminated by a newline,
except those that are explicitly marked as 'continued' logs.
Tree-SHA512: fe5162b2b2df1e8a4c807da87584fa9af97a6b8377e4090fe0caa136d90bf29a487a123cde94569bdce7101fee3478196d99aa13f1212e24bfe5f41c773604fc
Most logs should terminated with a '\n'. Some logs
are built up over multiple calls to logPrintf(), so
do not need a newline terminater. Comment all of
these 'continued' logs as a linter hing.
b55555d rpc: Add testmempoolaccept (MarcoFalke)
Pull request description:
To check if a single raw transaction makes it into the current transaction pool, one had to call `sendrawtransaction`. However, on success, this adds the transaction to the mempool with no easy way to undo.
The call `testmempoolaccept` is introduced to provide a way to solely check the result without changing the mempool state.
Tree-SHA512: 5afd9311190135cee8fc1f229c7d39bf893f1028f29e28d34f70df820198ff97b4bf86b41cbbd6e6c36a5c30073cefa92d541c74a4939c7a2a6fa283dfd41b63
a7c45bc Add native support for serializing char arrays without FLATDATA (Pieter Wuille)
Pull request description:
Support is added to serialize arrays of type `char` or `unsigned char` directly, without any wrappers. All invocations of the `FLATDATA` wrappers that are obsoleted by this are removed.
This includes a patch by @ryanofsky to make `char` casting type safe.
The serialization of `CSubNet` is changed to serialize a `bool` directly rather than though `FLATDATA`. This makes the serialization independent of the size of the bool type (and will use 1 byte everywhere).
This is a small change taken from #10785.
Tree-SHA512: a41f61ca5fdc2fadb2d0e1702351a58a23841d551f505292a9542602cdb19f90d8944b8df14b872810a56bd201648fa4c0e958f3e9427fe829886284e85b9bfd
adc2586 doc: Refer to witness reserved value as spec. in the BIP (MarcoFalke)
Pull request description:
BIP141 refers to the coinbase's input's witness that consists of a single 32-byte array as "witness reserved value".
This updates the code to follow the BIP
Tree-SHA512: 49c9463519bd11b9ff322eeecd638f7627aa8efdfb869f8549f9a160ff34281e1b5a0b9d83545a692de6f5ff795055292c423403b0f3ce7597e3f32273cf1deb
a192636 -blocksdir: keep blockindex leveldb database in datadir (Jonas Schnelli)
f38e4fd QA: Add -blocksdir test (Jonas Schnelli)
386a6b6 Allow to optional specify the directory for the blocks storage (Jonas Schnelli)
Pull request description:
Since the actual block files taking up more and more space, it may be desirable to have them stored in a different location then the data directory (use case: SSD for chainstate, etc., HD for blocks).
This PR adds a `-blocksdir` option that allows one to keep the blockfiles and the blockindex external from the data directory (instead of creating symlinks).
I fist had an option to keep the blockindex within the datadir, but seems to make no sense since accessing the index will (always) lead to access (r/w) the block files.
Tree-SHA512: f8b9e1a681679eac25076dc30e45e6e12d4b2d9ac4be907cbea928a75af081dbcb0f1dd3e97169ab975f73d0bd15824c00c2a34638f3b284b39017171fce2409
1f45e21 scripted-diff: Convert 11 enums into scoped enums (C++11) (practicalswift)
Pull request description:
Rationale (from Bjarne Stroustrup's ["C++11 FAQ"](http://www.stroustrup.com/C++11FAQ.html#enum)):
>
> The enum classes ("new enums", "strong enums") address three problems with traditional C++ enumerations:
>
> * conventional enums implicitly convert to int, causing errors when someone does not want an enumeration to act as an integer.
> * conventional enums export their enumerators to the surrounding scope, causing name clashes.
> * the underlying type of an enum cannot be specified, causing confusion, compatibility problems, and makes forward declaration impossible.
>
> The new enums are "enum class" because they combine aspects of traditional enumerations (names values) with aspects of classes (scoped members and absence of conversions).
Tree-SHA512: 9656e1cf4c3cabd4378c7a38d0c2eaf79e4a54d204a3c5762330840e55ee7e141e188a3efb2b4daf0ef3110bbaff80d8b9253abf2a9b015cdc4d60b49ac2b914
Support is added to serialize arrays of type char or unsigned char directly,
without any wrappers. All invocations of the FLATDATA wrappers that are
obsoleted by this are removed.
This includes a patch by Russell Yanofsky to make char casting type safe.
The serialization of CSubNet is changed to serialize a bool directly rather
than though FLATDATA. This makes the serialization independent of the size
of the bool type (and will use 1 byte everywhere).
f98b54352 Only call NotifyBlockTip when the active chain changes (James O'Beirne)
152b7fb25 [tests] Add a (failing) test for waitforblockheight (James O'Beirne)
Pull request description:
This is a subset of the more controversial https://github.com/bitcoin/bitcoin/pull/12407, but this also adds a test demonstrating the bug.
In InvalidateBlock, we're calling NotifyBlockTip with the now-invalid block's prev regardless of what chain the ancestor block is on. This could create numerous issues, but it at least screws up `waitforblockheight` (or anything else relying on `rpc/blockchain.cpp:latestblock`) when InvalidateBlock is called on a block not in chainActive, which can happen via RPC.
Only call NotifyBlockTip when the block being marked invalid is on the active chain.
Tree-SHA512: 9a54fe5e8c7eb489daf5df4483c0986129e871e2ca931a456ba869ecb5d5a8d4f7bd27ccc9e711e9292c9ed79ddef896c85d0e81fc76883503e327995b0e914f
92fabcd44 Add LookupBlockIndex function (João Barbosa)
43a32b739 Add missing cs_lock in CreateWalletFromFile (João Barbosa)
f814a3e8f Fix cs_main lock in LoadExternalBlockFile (João Barbosa)
c651df8b3 Lock cs_main while loading block index in AppInitMain (João Barbosa)
02de6a6bc Assert cs_main is held when accessing mapBlockIndex (João Barbosa)
Pull request description:
Replace all `mapBlockIndex` lookups with the new `LookupBlockIndex()`. In some cases it avoids a second lookup.
Tree-SHA512: ca31118f028a19721f2191d86f2dd398144d04df345694575a64aeb293be2f85785201480c3c578a0ec99690516205708558c0fd4168b09313378fd4e60a8412
* Z is the zone designator for the zero UTC offset.
* T is the delimiter used to separate date and time.
This makes it clear for the end-user that the date/time logged is
specified in UTC and not in the local time zone.
5b8b38775 Fix overly eager BIP30 bypass (Alex Morcos)
Pull request description:
In #6931 we introduced a possible consensus breaking change by misunderstanding how completely BIP 34 obviated the need for BIP 30. Unfixed, this could break consensus after block height about 1.9M. Explained in code comment.
h/t @sdaftuar
Tree-SHA512: 8f798c3f203432fd4ae1c1c08bd6967b4a5ec2064ed5f6a7dcf3bff34ea830952838dd4ff70d70b5080cf4644f601e5526b60456c08f43789e4aae05621d9d6b
9c5a4a6ed Stop special-casing phashBlock handling in validation for TBV (Matt Corallo)
Pull request description:
There is no reason to do this, really, we already have "ignore PoW" flags. Motivated by https://github.com/bitcoin/bitcoin/pull/11739#discussion_r155841721
Tree-SHA512: 37cb1ae5b11c9e8ed7a679bb07ad3b119a2a014744b26d197d67ba21beb19fe6815271df935e40f7c7bd5f2e4d7ae4dad7bd4d00fa230a8d789f37e9de31a769
The call to CheckBlock() in ConnectBlock() is redundant with calls to it
prior to storing a block on disk. If CheckBlock() fails with an error
indicating the block is potentially corrupted, then shut down
immediately, as this is an indication that the node is experiencing
hardware issues. (If we didn't shut down, we could go into an infinite
loop trying to reconnect this same bad block, as we're not setting the
block's status to FAILED in the case where there is potential
corruption.)
If CheckBlock() fails for some other reason, we'll end up flagging this
block as bad (perhaps some prior software version "let a bad block in",
as the comment indicates), and not trying to connect it again, so this
case should be properly handled.
90ba2df11 Fix missing cs_main lock for GuessVerificationProgress() (Jonas Schnelli)
Pull request description:
`GuessVerificationProgress()` needs `cs_main` due to accessing the `pindex->nChainTx`.
This adds a `AssertLockHeld` in `GuessVerificationProgress()` and adds the missing locks in...
* `LoadChainTip()`
* `ScanForWalletTransactions()` (got missed in #11281)
* GUI, `ClientModel::getVerificationProgress()` <--- **this may have GUI performance impacts**, but could be relaxed later with a cache or something more efficient.
Tree-SHA512: 13302946571422375f32af8e396b9d2c1180f2693ea363aeba9e98c8266ddec64fe7862bfdcbb5a93a4b12165a61eec1e51e4e7d7a8515fa50879095dc163412
Previously, if `invalidateblock` was called on a block in a branch,
NotifyBlockTip would be called on that block's predecessor, creating an
incorrect `rpc/blockchain.cpp:latestblock` value.
Only call NotifyBlockTip if the chain being modified is activeChain.
bb00c95 Consistently use FormatStateMessage in RPC error output (Ben Woosley)
8b8a1c4 Add test for 'mempool min fee not met' rpc error (Ben Woosley)
c04e0f6 Fix 'mempool min fee not met' debug output (Ben Woosley)
Pull request description:
Output the value that is tested, rather than the unmodified fee value.
Prompted by looking into: #11955
Tree-SHA512: fc0bad47d4af375d208f657a6ccbad6ef7f4e2989ae2ce1171226c22fa92847494a2c55cca687bd5a1548663ed3313569bcc31c00d53c0c193a1b865dd8a7657
004f999 boost: drop boost threads for [alert|block|wallet]notify (Cory Fields)
0827267 boost: drop boost threads from torcontrol (Cory Fields)
ba91724 boost: remove useless threadGroup parameter from Discover (Cory Fields)
f26866b boost: drop boost threads for upnp (Cory Fields)
Pull request description:
This doesn't completely get rid of boost::thread, but this batch should be easy to review, and leaves us with only threadGroup (scheduler + scriptcheck) remaining.
Note to reviewers: The upnp diff changes a bunch of whitespace, it's much more clear with 'git diff -w'
Tree-SHA512: 5a356798d0785f93ed143d1f0afafe890bc82f0d470bc969473da2d2aa78bcb9b096f7ba11b92564d546fb447d4bd0d347e7842994ea0170aafd53fda7e0a66e
02fc886 Add braces to meet code style on line-after-the-one-changed. (Matt Corallo)
85aa839 Hold mempool.cs for the duration of ATMP. (Matt Corallo)
Pull request description:
This resolves an issue where getrawmempool() can race mempool
notification signals. Intuitively we use mempool.cs as a "read
lock" on the mempool with cs_main being the write lock, so holding
the read lock intermittently while doing write operations is
somewhat strange.
This also avoids the introduction of cs_main in getrawmempool()
which reviewers objected to in the previous fix in #12273
Tree-SHA512: 29464b9ca3890010ae13b7dc1c53487cc2bc9c3cf3d32a14cb09c8aa33848f57959d8991ea096beebcfb72f062e4e1962f104aefe4252c7db87633bbfe4ab317
dd2de47 Fix fast-shutdown crash if genesis block was not loaded (Matt Corallo)
1c9394a Fix fast-shutdown hang on ThreadImport+GenesisWait (Matt Corallo)
Pull request description:
The second commit is a much simpler alternative fix for the issue fixed in #12349. To test I made ShutdownRequested() always StartShutdown() after a certain number of calls, which turned up one other hang, fixed in the first commit.
Tree-SHA512: 86bde6ac4b8b4e2cb99fff87dafeed02c0d9514acee6d94455637fb2da9ffc274b5ad31b0a6b9f5bd7b700ae35395f28ddb14ffc65ddda3619aa28df28a5607d
9ad6746ccd Use static_cast instead of C-style casts for non-fundamental types (practicalswift)
Pull request description:
A C-style cast is equivalent to try casting in the following order:
1. `const_cast(...)`
2. `static_cast(...)`
3. `const_cast(static_cast(...))`
4. `reinterpret_cast(...)`
5. `const_cast(reinterpret_cast(...))`
By using `static_cast<T>(...)` explicitly we avoid the possibility of an unintentional and dangerous `reinterpret_cast`. Furthermore `static_cast<T>(...)` allows for easier grepping of casts.
For a more thorough discussion, see ["ES.49: If you must use a cast, use a named cast"](https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#es49-if-you-must-use-a-cast-use-a-named-cast) in the C++ Core Guidelines (Stroustrup & Sutter).
Tree-SHA512: bd6349b7ea157da93a47b8cf238932af5dff84731374ccfd69b9f732fabdad1f9b1cdfca67497040f14eaa85346391404f4c0495e22c467f26ca883cd2de4d3c
If the ShutdownRequested() check at the top of ActivateBestChain()
returns false during initial genesis block load we will fail an
assertion in UTXO DB flush as the best block hash IsNull(). To work
around this, we move the check until after one round of
ActivateBestChainStep(), ensuring the genesis block gets connected.
This resolves an issue where getrawmempool() can race mempool
notification signals. Intuitively we use mempool.cs as a "read
lock" on the mempool with cs_main being the write lock, so holding
the read lock intermittently while doing write operations is
somewhat strange.
This also avoids the introduction of cs_main in getrawmempool()
which reviewers objected to in the previous fix in #12273
This requires the removal of some very liberal (incorrect) cs_mains
sprinkled in some tests. It adds some chainActive.Tip() races, but
the tests are all single-threaded anyway.
a720b92 Remove includes in .cpp files for things the corresponding .h file already included (practicalswift)
Pull request description:
Remove includes in .cpp files for things the corresponding .h file already included.
Example case:
* `addrdb.cpp` includes `addrdb.h` and `fs.h`
* `addrdb.h` includes `fs.h`
Then remove the direct inclusion of `fs.h` in `addrman.cpp` and rely on the indirect inclusion of `fs.h` via the included `addrdb.h`.
In line with the header include guideline (see #10575).
Tree-SHA512: 8704b9de3011a4c234db336a39f7d2c139e741cf0f7aef08a5d3e05197e1e18286b863fdab25ae9638af4ff86b3d52e5cab9eed66bfa2476063aa5c79f9b0346
22fddde Avoid calling GetSerializeSize on each tx in a block if !fTxIndex (Matt Corallo)
2862aca Move some additional variables into CChainState private (Matt Corallo)
fd4d80a Create initial CChainState to hold chain state information (Matt Corallo)
e104f0f Move block writing out of AcceptBlock (Matt Corallo)
50701ba Move txindex/undo data disk location stuff out of ConnectBlock (Matt Corallo)
93a34cf Make DisconnectBlock unaware of where undo data resides on disk (Matt Corallo)
Pull request description:
CChainState should eventually, essentially, be our exposed "libconsensus", but we're probably a few releases away, so the real goal is to clarify our internal interfaces. The main split was a big step, but validation.cpp is still a somewhat ranomly-mixed bag of functions that are pure functions which validate inputs (which should probably either merge with their callers or move into another file in consensus/), read/write data from disk, manipulate our current chain state (which moves into CChainState), and do mempool transaction validation.
Obviously this is only a small step, but some effort is made to clean up what functions the functions in CChainState call, and obviously as things are added its easy to keep clear "CChainState::* cannot call anything except via callbacks through CValidationInterface, pure functions, or disk read/write things". Right now there are some glaring violations in mempool callbacks, and general flushing logic needs cleaning up (FlushStateToDisk maybe shouldnt be called, and there should be an API towards setDirtyBlockIndex, but I'll leave that for after @sipa's current changesets land).
Tree-SHA512: 69b8ec191b36b19c9492b4dee74c8057621fb6ec98ad219e8da0b2ed5c3ad711b10b5af9ff1117e8807ccf88918eeeab573be8448baecc9a59f099c53095985b
434526a [test] Add tests for getrawtransaction with block hash. (Karl-Johan Alm)
b167951 [rpc] Allow getrawtransaction to take optional blockhash to fetch transaction from a block directly. (Karl-Johan Alm)
a5f5a2c [rpc] Fix fVerbose parsing (remove excess if cases). (Karl-Johan Alm)
Pull request description:
[Reviewer hint: use [?w=1](https://github.com/bitcoin/bitcoin/pull/10275/files?w=1) to avoid seeing a bunch of indentation changes.]
Presuming a user knows the block hash of the block containing a given transaction, this PR allows them to fetch the raw transaction, even without `-txindex`. It also enables support for getting transactions that are in orphaned blocks.
Note that supplying a block hash will override mempool and txindex support in `GetTransaction`. The rationale behind this is that a transaction may be in multiple places (orphaned blocks) and if the user supplies an explicit block hash it should be adhered to.
```Bash
$ # a41.. is a tx inside an orphan block ..3c6f.. -- first try getting it normally
$ ./bitcoin-cli getrawtransaction a41e66ee1341aa9fb9475b98cfdc1fe1261faa56c0a49254f33065ec90f7cd79 1
error code: -5
error message:
No such mempool transaction. Use -txindex to enable blockchain transaction queries. Use gettransaction for wallet transactions.
$ # now try with block hash
$ ./bitcoin-cli getrawtransaction a41e66ee1341aa9fb9475b98cfdc1fe1261faa56c0a49254f33065ec90f7cd79 1 0000000000000000003c6fe479122bfa4a9187493937af1734e1e5cd9f198ec7
{
"hex": "01000000014e7e81144e42f6d65550e59b715d470c9301fd7ac189[...]90488ac00000000",
"inMainChain": false,
"txid": "a41e66ee1341aa9fb9475b98cfdc1fe1261faa56c0a49254f33065ec90f7cd79",
"hash": "a41e66ee1341aa9fb9475b98cfdc1fe1261faa56c0a49254f33065ec90f7cd79",
"size": 225,
[...]
}
$ # another tx 6c66... in block 462000
$ ./bitcoin-cli getrawtransaction 6c66b98191e9d6cc671f6817142152ebf6c5cab2ef008397b5a71ac13255a735 1 00000000000000000217f2c12922e321f6d4aa933ce88005a9a493c503054a40
{
"hex": "0200000004d157[...]88acaf0c0700",
"inMainChain": true,
"txid": "6c66b98191e9d6cc671f6817142152ebf6c5cab2ef008397b5a71ac13255a735",
"hash": "6c66b98191e9d6cc671f6817142152ebf6c5cab2ef008397b5a71ac13255a735",
"size": 666,
[...]
}
$
```
Tree-SHA512: 279be3818141edd3cc194a9ee65929331920afb30297ab2d6da07293a2d7311afee5c8b00c6457477d9f1f86e86786a9b56878ea3ee19fa2629b829d042d0cda
680bc2cbb Use range-based for loops (C++11) when looping over map elements (practicalswift)
Pull request description:
Before this commit:
```c++
for (std::map<T1, T2>::iterator x = y.begin(); x != y.end(); ++x) {
T1 z = (*x).first;
…
}
```
After this commit:
```c++
for (auto& x : y) {
T1 z = x.first;
…
}
```
Tree-SHA512: 954b136b7f5e6df09f39248a6b530fd9baa9ab59d7c2c7eb369fd4afbb591b7a52c92ee25f87f1745f47b41d6828b7abfd395b43daf84a55b4e6a3d45015e3a0
9d811dc Document partial validation in ConnectBlock() (Suhas Daftuar)
Pull request description:
`ConnectBlock()` relies on validation that happens in `ContextualCheckBlock()` and
`ContextualCheckBlockHeader()`. This has implications for implementing consensus
changes and handling software upgrade to ensure that nodes upgrading their
software end up enforcing all the consensus rules.
Tree-SHA512: 36a252af2221b0e5d5d6f8d5f8b16f8b566ca0db2d56242130a5523302c8757599ac234594a6a946c1689b260d18a32c2c7f8c3831304e78b9832e2ce5ac435a
ConnectBlock() relies on validation that happens in ContextualCheckBlock() and
ContextualCheckBlockHeader(). This has implications for implementing consensus
changes and handling software upgrade to ensure that nodes upgrading their
software end up enforcing all the consensus rules.
89f0312 Remove redundant pwallet nullptr check (Matt Corallo)
c4784b5 Add a dev notes document describing the new wallet RPC blocking (Matt Corallo)
3ea8b75 Give ZMQ consistent order with UpdatedBlockTip on scheduler thread (Matt Corallo)
cb06edf Fix wallet RPC race by waiting for callbacks in sendrawtransaction (Matt Corallo)
e545ded Also call other wallet notify callbacks in scheduler thread (Matt Corallo)
17220d6 Use callbacks to cache whether wallet transactions are in mempool (Matt Corallo)
5d67a78 Add calls to CWallet::BlockUntilSyncedToCurrentChain() in RPCs (Matt Corallo)
5ee3172 Add CWallet::BlockUntilSyncedToCurrentChain() (Matt Corallo)
0b2f42d Add CallFunctionInQueue to wait on validation interface queue drain (Matt Corallo)
2b4b345 Add ability to assert a lock is not held in DEBUG_LOCKORDER (Matt Corallo)
0343676 Call TransactionRemovedFromMempool in the CScheduler thread (Matt Corallo)
a7d3936 Add a CValidationInterface::TransactionRemovedFromMempool (Matt Corallo)
Pull request description:
Based on #10179, this effectively reverts #9583, regaining most of the original speedups of #7946.
This concludes the work of #9725, #10178, and #10179.
See individual commit messages for more information.
Tree-SHA512: eead4809b0a75d1fb33b0765174ff52c972e45040635e38cf3686cef310859c1e6b3c00e7186cbd17374c6ae547bfbd6c1718fe36f26c76ba8a8b052d6ed7bc9
d61845818 Have SegWit active by default (Pieter Wuille)
4bd89210a Unit tests for always-active versionbits. (Anthony Towns)
d07ee77ab Always-active versionbits support (Pieter Wuille)
18e071841 [consensus] Pin P2SH activation to block 173805 on mainnet (John Newbery)
526023aa7 Improve handling of BIP9Deployment limits (Anthony Towns)
Pull request description:
Most tests shouldn't have to deal with the now-historical SegWit activation transition (and other deployments, but SegWit is certainly the hardest one to accomodate).
This PR makes a versionbits starttime of -1 equal to "always active", and enables it by default for SegWit on regtest. Individual tests can override this by using the existing `-vbparams` option.
A few unit tests and functional tests are adapted to indeed override vbparams, as they specifically test the transition.
This is in preparation for wallet SegWit support, but I thought having earlier eyes on it would be useful.
Tree-SHA512: 3f07a7b41cf46476e6c7a5c43244e68c9f41d223482cedaa4c02a3a7b7cd0e90cbd06b84a1f3704620559636a2268f5767d4c52d09c1b354945737046f618fe5
f3d4adf Make p2p-acceptablock not an extended test (Matt Corallo)
00dcda6 [qa] test that invalid blocks on an invalid chain get a disconnect (Matt Corallo)
015a525 Reject headers building on invalid chains by tracking invalidity (Matt Corallo)
932f118 Accept unrequested blocks with work equal to our tip (Matt Corallo)
3d9c70c Stop always storing blocks from whitelisted peers (Matt Corallo)
3b4ac43 Rewrite p2p-acceptblock in preparation for slight behavior changes (Matt Corallo)
Pull request description:
@sdaftuar pointed out that the version in #11487 was somewhat DoS-able as someone could feed you a valid chain that forked off the the last checkpoint block and force you to do lots of work just walking backwards across blocks for each new block they gave you. We came up with a few proposals but settled on the one implemented here as likely the simplest without obvious DoS issues. It uses our existing on-load mapBlockIndex walk to make sure everything that descends from an invalid block is marked as such, and then simply caches blocks which we attempted to connect but which were found to be invalid. To avoid DoS issues during IBD, this will need to depend on #11458.
Includes tests from #11487.
Tree-SHA512: 46aff8332908e122dae72ceb5fe8cd241902c2281a87f58a5fb486bf69d46458d84a096fdcb5f3e8e07fbcf7466232b10c429f4d67855425f11b38ac0bf612e1
This tracks the set of all known invalid-themselves blocks (ie
blocks which we attempted to connect but which were found to be
invalid). This is used to cheaply check if new headers build on an
invalid chain.
While we're at it we also resolve an edge-case in invalidateblock
on pruned nodes which results in them needing a reindex if they
fail to reorg.
This is a simple change that makes our accept requirements the
same as our request requirements, (ever so slightly) further
decoupling our consensus logic from our FindNextBlocksToDownload
logic in net_processing.
A peer could try to waste our resources by sending us unrequested blocks with
low work, eg to fill up our disk. Since
e2652002b6 we no longer request blocks until we
know we're on a chain with more than nMinimumChainWork (our anti-DoS
threshold), but we would still process unrequested blocks that had more work
than our tip. This commit fixes that behavior.
258d33b41 [mempool] Mark unaccepted txs present in mempool as 'already there'. (Karl-Johan Alm)
Pull request description:
I was investigating the reasons for failed imports in mempool and noticed that `LoadMempool()` and `pwallet->postInitProcess()` (for all wallets) are executed concurrently. The wallet will end up importing transactions that `LoadMempool()` later tries to import; the latter will fail due to the tx already being in the mempool.
This PR changes the log message, adding an additional "already there" entry. For transactions not accepted into mempool, a check if they are in the mempool is done first, and if found, they are counted as 'already there', otherwise counted as 'failed'.
Also slight rewording for consistency (successes, failed, expired, ... -> succeeded, failed, expired).
Tree-SHA512: 1a6134a25260917f2768365e0dfd8b278fe3f8287cab38bb028b7de3d517718a2d37696186dc7a23ceab338cc755fbbe7d45358ee94e573610fddd2a0620d6e5
This runs Block{Connected,Disconnected}, SetBestChain, Inventory,
and TransactionAddedToMempool on the background scheduler thread.
Of those, only BlockConnected is used outside of Wallet/ZMQ, and
is used only for orphan transaction removal in net_processing,
something which does not need to be synchronous with anything
else.
This partially reverts #9583, re-enabling some of the gains from
#7946. This does not, however, re-enable the gains achieved by
repeatedly releasing cs_main between each transaction processed.
