4e28753f60 feestimator: encapsulate estimation file logic (Antoine Poinsot)
e8ea6ad9c1 init: don't create a CBlockPolicyEstimator if we don't relay transactions (Antoine Poinsot)
86ff2cf202 Remove the remaining fee estimation globals (Antoine Poinsot)
03bfeee957 interface: remove unused estimateSmartFee method from node (Antoine Poinsot)
Pull request description:
If the `blocksonly` mode is turned on after running with transaction
relay enabled for a while, the fee estimation will serve outdated data
to both the internal wallet and to external applications that might be
feerate-sensitive and make use of `estimatesmartfee` (for example a
Lightning Network node).
This has already caused issues (for example https://github.com/bitcoin/bitcoin/issues/16840 (C-lightning), or https://github.com/lightningnetwork/lnd/issues/2562 (LND)) and it seems prudent to fail rather than to give inaccurate values.
This fixes#16840, and closes#16890 which tried to fix the symptoms (RPC) but not the cause as mentioned by sdaftuar :
> If this is a substantial problem, then I would think we should take action to protect our own wallet users as well (rather than hide the results of what our fee estimation would do!).
ACKs for top commit:
MarcoFalke:
re-ACK 4e28753f60👋
jnewbery:
utACK 4e28753f60
Tree-SHA512: c869cf03b86d8194002970bbc84662dae76874967949b9be0d9a4511a1eabcb1627c38aca3154da9dcece1a4c49ec02bd4f9fcca2ec310986e07904559e63ba8
This moves the fee_estimates file management to the CBlockPolicyEstimator
Flush() method.
Co-authored-by: John Newbery <john@johnnewbery.com>
Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
This moves the CBlockPolicyEstimator to the NodeContext, which get rids
of two globals and allows us to conditionally create the
CBlockPolicyEstimator (and to remove a circular dep).
Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
f15e780b9e refactor: Clean up CTxMemPool initializer list (Elle Mouton)
e3310692d0 refactor: Make CTxMemPool::m_check_ratio a const and a constructor argument (Elle Mouton)
9d4b4b2c2c refactor: Avoid double to int cast for nCheckFrequency (Elle Mouton)
Pull request description:
This PR cleans up the CTxMemPool interface by including the ratio used to determine when a mempool sanity check should run in the constructor of CTxMempool instead of using nCheckFrequency which required a cast from a double to a uint32_t. Since nCheckFrequency (now called m_check_ratio) is set in the constructor and only every read from there after, it can be turned into a const and no longer needs to be guarded by the 'cs' lock.
Since nCheckFrequency/m_check_ratio no longer needs to lock the 'cs' mutux, mutex lock line in the "CTxMempool::check" function can be moved below where the m_check_ratio variable is checked. Since the variable is 0 by default (meaning that "CTxMempool::check" will most likely not run its logic) this saves us from unnecessarily grabbing the lock.
ACKs for top commit:
jnewbery:
utACK f15e780b9e
MarcoFalke:
ACK f15e780b9e👘
glozow:
utACK f15e780b9e
theStack:
Code Review ACK f15e780b9e
Tree-SHA512: d83f3b5311ca128847b621e5e999c7e1bf0f4e6261d4cc090fb13e229a0f7eecd66ad997f654f50a838baf708d1515740aa3bffc244909a001d01fd5ae398b68
ea93bbeb26 init: Fix incorrect warning "Reducing -maxconnections from N to N-1, because of system limitations" (practicalswift)
Pull request description:
Fix incorrect warning `Reducing -maxconnections from N to N-1, because of system limitations`.
Before this patch (only the first warning is correct):
```
$ src/bitcoind -maxconnections=10000000 | grep Warning
2020-09-26T01:23:45Z Warning: Reducing -maxconnections from 10000000 to 1048417, because of system limitations.
$ src/bitcoind -maxconnections=1000000 | grep Warning
2020-09-26T01:23:45Z Warning: Reducing -maxconnections from 1000000 to 999999, because of system limitations.
$ src/bitcoind -maxconnections=100000 | grep Warning
2020-09-26T01:23:45Z Warning: Reducing -maxconnections from 100000 to 99999, because of system limitations.
$ src/bitcoind -maxconnections=10000 | grep Warning
2020-09-26T01:23:45Z Warning: Reducing -maxconnections from 10000 to 9999, because of system limitations.
$ src/bitcoind -maxconnections=1000 | grep Warning
2020-09-26T01:23:45Z Warning: Reducing -maxconnections from 1000 to 999, because of system limitations.
$ src/bitcoind -maxconnections=100 | grep Warning
[no warning]
```
After this patch (no incorrect warnings):
```
$ src/bitcoind -maxconnections=10000000 | grep Warning
2020-09-26T01:23:45Z Warning: Reducing -maxconnections from 10000000 to 1048417, because of system limitations.
$ src/bitcoind -maxconnections=1000000 | grep Warning
[no warning]
$ src/bitcoind -maxconnections=100000 | grep Warning
[no warning]
$ src/bitcoind -maxconnections=10000 | grep Warning
[no warning]
$ src/bitcoind -maxconnections=1000 | grep Warning
[no warning]
$ src/bitcoind -maxconnections=100 | grep Warning
[no warning]
```
ACKs for top commit:
n-thumann:
tACK ea93bbeb26, Ran on other systems running Debian 10.5 (4.19.0-8-amd64) and Debian bullseye/sid (5.3.0-1-amd64) and was able to reproduce the issue exactly as you described above on both of them. After applying your patch the issue is fixed ✌️
laanwj:
Code review ACK ea93bbeb26
theStack:
tACK ea93bbeb26
Tree-SHA512: 9b0939a1a51fdf991d11024a5d20b4f39cab1a80320b799a1d24d0250aa059666bcb1ae6dd79c941c2f2686f07f59fc0f6618b5746aa8ca6011fdd202828a930
Since m_check_ratio is only set once and since the CTxMemPool object is
no longer a global variable, m_check_ratio can be passed into the
constructor of CTxMemPool. Since it is only read from after
initialization, m_check_ratio can also be made a const and hence no
longer needs to be guarded by the cs mutex.
96571b3d4c doc: Update onion service target port numbers in tor.md (Hennadii Stepanov)
bb145c9050 net: Extend -bind config option with optional network type (Hennadii Stepanov)
92bd3c1da4 net, refactor: Move AddLocal call one level up (Hennadii Stepanov)
57f17e57c8 net: Pass onion service target to Tor controller (Hennadii Stepanov)
e3f07851f0 refactor: Rename TorController::target to m_tor_control_center (Hennadii Stepanov)
fdd3ae4d26 net, refactor: Refactor CBaseChainParams::RPCPort function (Hennadii Stepanov)
a5266d4546 net: Add alternative port for onion service (Hennadii Stepanov)
b3273cf403 net: Use network byte order for in_addr.s_addr (Hennadii Stepanov)
Pull request description:
This PR adds ability to label incoming Tor connections as different from normal localhost connections.
Closes#8973.
Closes#16693.
Default onion service target ports are:
- 8334 on mainnnet
- 18334 on testnet
- 38334 on signet
- 18445 on regtest
To set the onion service target socket manually the extended `-bind` config option could be used:
```
$ src/bitcoind -help | grep -A 6 -e '-bind'
-bind=<addr>[:<port>][=onion]
Bind to given address and always listen on it (default: 0.0.0.0). Use
[host]:port notation for IPv6. Append =onion to tag any incoming
connections to that address and port as incoming Tor connections
(default: 127.0.0.1:8334=onion, testnet: 127.0.0.1:18334=onion,
signet: 127.0.0.1:38334=onion, regtest: 127.0.0.1:18445=onion)
```
Since [pr19991.02 update](https://github.com/bitcoin/bitcoin/pull/19991#issuecomment-698882284) this PR is an alternative to #19043.
ACKs for top commit:
Sjors:
re-utACK 96571b3d4c
vasild:
ACK 96571b3d4
laanwj:
Re-ACK 96571b3d4c
Tree-SHA512: cb0eade80f4b3395f405f775e1b89c086a1f09d5a4464df6cb4faf808d9c2245474e1720b2b538f203f6c1996507f69b09f5a6e35ea42633c10e22bd733d4438
f22d6a1142 log: Remove static log message "Initializing chainstate Chainstate [ibd] @ height -1 (null)" (practicalswift)
Pull request description:
Remove static log message `Initializing chainstate Chainstate [ibd] @ height -1 (null)`.
AFAICT `chainstate->ToString()` will always equal `"Chainstate [ibd] @ height -1 (null)"` here which makes the log message neither relevant nor interesting :)
ACKs for top commit:
laanwj:
ACK f22d6a1142
promag:
ACK f22d6a1142, just get rid of it.
hebasto:
ACK f22d6a1142, I agree that the removed log message in its current state is cryptic and useless.
Tree-SHA512: 1a65c0d14c9a433afcdaadef9bfcdd5d63276d5d2caee1bf3c48ac477e54fa28138f64020e6e26ca5e67872954a1e7d93fa24a12accc7c7211bc6e7a6039051d
9b4fa0af40 net: Print error message if -proxy is specified without arguments (instead of continuing without proxy server) (practicalswift)
Pull request description:
Exit with error message if `-proxy` is specified without arguments (instead of continuing without proxy server).
Continuing without a proxy server when the end-user has specified `-proxy` may result in accidental loss of privacy. (The end-user might think he/she is using a proxy when he/she is not.)
Before this patch:
```
$ src/bitcoind -proxy
…
2020-09-23T00:24:33Z InitParameterInteraction: parameter interaction: -proxy set -> setting -listen=0
2020-09-23T00:24:33Z InitParameterInteraction: parameter interaction: -proxy set -> setting -upnp=0
2020-09-23T00:24:33Z InitParameterInteraction: parameter interaction: -proxy set -> setting -discover=0
2020-09-23T00:24:33Z InitParameterInteraction: parameter interaction: -listen=0 -> setting -listenonion=0
…
2020-09-23T00:24:33Z init message: Starting network threads...
```
`bitcoind` is now running *without* a proxy server (`GetProxy(…, …) == false`, `HaveNameProxy() == false`, etc.).
Note that the "-proxy set" log messages above which the end-user might interpret as "good, my traffic is now routed via the proxy".
After this patch:
```
$ src/bitcoind -proxy
Error: No proxy server specified. Use -proxy=<ip> or -proxy=<ip:port>.
$ echo $?
1
```
ACKs for top commit:
laanwj:
re-ACK 9b4fa0af40
kristapsk:
ACK 9b4fa0af40, I have tested the code.
hebasto:
re-ACK 9b4fa0af40
Tree-SHA512: 4ba7a011991699a54b5bb87ec68367c681231bf5dcd36f8c89ff9ddc2e8d29df453817b7e362597e652ad6b341a22b7274be0fd78d435e5f0fd8058e5221c4ce
090530cc24 feature: Added ability for users to add a startup command (Ben Carman)
Pull request description:
Thoughts for adding the feature is for users to be able to add things like electrum-personal-server or lnd to run whenever Bitcoin Core is running. Open to feedback about the feature.
ACKs for top commit:
MarcoFalke:
re-ACK 090530cc24
dongcarl:
tACK 090530c
Tree-SHA512: ba514d2fc8b4fb12b781c1a9c89845a25fce0b80ba7c907761cde4abb81edd03fa643682edc895986dc20b273ac3b95769508806db7fbd99ec28623f85c41e67
72a1d5c6f3 validation: Remove review-only comments + assertions (Carl Dong)
3756853b15 docs: Move FindFilesToPrune{,Manual} doxygen comment (Carl Dong)
485899a93c style: Make FindFilesToPrune{,Manual} match style guide (Carl Dong)
3f5b5f3f6d validation: Move FindFilesToPrune{,Manual} to BlockManager (Carl Dong)
f8d4975ab3 validation: Move PruneOneBlockFile to BlockManager (Carl Dong)
74f73c783d validation: Pass in chainman to UnloadBlockIndex (Carl Dong)
4668ded6d6 validation: Move ~CMainCleanup logic to ~BlockManager (Carl Dong)
Pull request description:
This PR paves the way for de-globalizing `g_chainman` entirely by removing the usage of `g_chainman` in the following functions/methods:
- `~CMainCleanup`
- `CChainState::FlushStateToDisk`
- `UnloadBlockIndex`
The remaining direct uses of `g_chainman` are as follows:
1. In initialization codepaths:
- `AppTests`
- `AppInitMain`
- `TestingSetup::TestingSetup`
2. `::ChainstateActive`
3. `LookupBlockIndex`
- Note: `LookupBlockIndex` is used extensively throughout the codebase and require a much larger set of changes, therefore I've left it out of this initial PR
ACKs for top commit:
MarcoFalke:
re-ACK 72a1d5c6f3👚
jnewbery:
utACK 72a1d5c6f3
Tree-SHA512: 944a4fa8405eecf39706ff944375d6824373aaeea849d11473f08181eff26b12f70043a8348a5b08e6e9021b243b481842fbdfbc7c3140ca795fce3688b7f5c3
Using the zmq notifications to avoid excessive mempool polling can be difficult
given the current notifications available. It announces all transactions
being added to mempool or included in blocks, but announces no evictions
and gives no indication if the transaction is in the mempool or a block.
Block notifications for zmq are also substandard, in that it only announces
block tips, while all block transactions are still announced.
This commit adds a unified stream which can be used to closely track mempool:
1) getrawmempool to fill out mempool knowledge
2) if txhash is announced, add or remove from set
based on add/remove flag
3) if blockhash is announced, get block txn list,
remove from those transactions local view of mempool
4) if we drop a sequence number, go to (1)
The mempool sequence number starts at the value 1, and
increments each time a transaction enters the mempool,
or is evicted from the mempool for any reason, including
block inclusion. The mempool sequence number is published
via ZMQ for any transaction-related notification.
These features allow for ZMQ/RPC consumer to track mempool
state in a more exacting way, without unnecesarily polling
getrawmempool. See interface_zmq.py::test_mempool_sync for
example usage.
916d3596c4 help: Generate checkpoint height from chainparams (Luke Dashjr)
Pull request description:
Not sure if this is worth putting in Core, but might as well until checkpoints are removed entirely.
ACKs for top commit:
laanwj:
re-ACK 916d3596c4
Tree-SHA512: d8eb26b570ee730fdd75ca916507134db5f2f68987a911e33544b7f1c9ccfd1c76b9c9db63056971956b6daf16910f17ecfc197481c2f7b0773afdfbf7d381cf
-BEGIN VERIFY SCRIPT-
sed -i 's/PeerLogicValidation/PeerManager/g' $(git grep -l PeerLogicValidation ./src ./test)
sed -i 's/peer_logic/peerman/g' $(git grep -l peer_logic ./src ./test)
-END VERIFY SCRIPT-
PeerLogicValidation was originally net_processing's implementation to
the validation interface. It has since grown to contain much of
net_processing's logic. Therefore rename it to reflect its
responsibilities.
Suggested in
https://github.com/bitcoin/bitcoin/pull/10756#pullrequestreview-53892618.
Keep a references to chainparams, rather than calling the global
Params() function every time it's needed. This is fine, since
globalChainParams does not get updated once it's been set, and it's
available at the point of constructing the PeerLogicValidation object.
24bf17602c gui refactor: Inline SplashScreen::ConnectWallet (Russell Yanofsky)
e4f4350471 refactor: Move wallet methods out of chain.h and node.h (Russell Yanofsky)
b266b3e0bf refactor: Create interfaces earlier during initialization (Russell Yanofsky)
Pull request description:
Add WalletClient interface so node interface is cleaner and don't need wallet-specific methods.
The new NodeContext::wallet_client pointer will also be needed to eliminate global wallet variables like ::vpwallets in #19101, because createWallet(), loadWallet(), getWallets(), etc methods called by the GUI need a way to get a reference to the list of open wallets if it is no longer a global variable.
ACKs for top commit:
promag:
Code review ACK 24bf17602c.
MarcoFalke:
ACK 24bf17602c🐚
Tree-SHA512: a70d3776cd6723093db8912028c50075ec5fa0a48b961cb1a945f922658f5363754f8380dbb8378ed128c8c858913024f8264740905b8121a35c0d63bfaed7cf
Add AppInitInterfaces function so wallet chain and chain client interfaces are
created earlier during initialization. This is needed in the next commit to
allow the gui splash screen to be able to register for wallet events through a
dedicated WalletClient interface instead managing wallets indirectly through
the Node interface. This only works if the wallet client interface is created
before the splash screen needs to use it.
fa9d5902f7 scripted-diff: gArgs -> args (MarcoFalke)
fa33bc2dab init: Capture copy of blocknotify setting for BlockNotifyCallback (MarcoFalke)
fa40017706 init: Pass reference to ArgsManager around instead of relying on global (MarcoFalke)
Pull request description:
The gArgs global has several issues:
* gArgs is used by each process (bitcoind, bitcoin-qt, bitcoin-wallet, bitcoin-cli, bitcoin-tx, ...), but it is hard to determine which arguments are actually used by each process. For example arguments that have never been registered, but are still used, will always return the fallback value.
* Tests may run several sub-tests, which need different settings. So globals will have to be overwritten, but that is fragile on its own: e.g. https://github.com/bitcoin/bitcoin/pull/19704#issuecomment-678259092 or #19511
The goal is to remove gArgs, but as a first step in that direction this pull will change gArgs in init to use a passed-in reference instead.
ACKs for top commit:
ryanofsky:
Code review ACK fa9d5902f7. Looks good. Nice day to remove some globals, and add some lambdas 👍
fanquake:
ACK fa9d5902f7 - I'm not as familiar with the settings & argument handling code, but this make sense, and is a step in the right direction towards a reduction in the usage of globals. Not a huge fan of the clang-formatting in the scripted diff.
jonasschnelli:
Concept ACK fa9d5902f7
Tree-SHA512: ed00db5f826566c7e3b4d0b3d2ee0fc1a49a6e748e04e5c93bdd694ac7da5598749e73937047d5fce86150d764a067d2ca344ba4ae3eb2704cc5c4fa0d20940f
daed542a12 [net_processing] Move ProcessMessage to PeerLogicValidation (John Newbery)
c556770b5e [net_processing] Change PeerLogicValidation to hold a connman reference (John Newbery)
Pull request description:
Rather than ProcessMessage() being a static function in net_processing.cpp, make it a private member function of PeerLogicValidation. This is the start of moving static functions and global variables into PeerLogicValidation to make it better encapsulated.
ACKs for top commit:
jonatack:
ACK daed542a12 code review and debug tested
promag:
Code review ACK daed542a12.
MarcoFalke:
re-ACK daed542a12, only change is removing second commit 🎴
theStack:
Code Review ACK daed542a12
Tree-SHA512: ddebf410d114d9ad5a9e536950018ff333a347c035d74fcc101fb4a3f20a281782c7eac2b7d1bd1c8f6bc7e59f5b5630fb52c2e1b4c32df454fa584673bd021e
f5c003d3ea [test] Add test for NODE_COMPACT_FILTER. (Jim Posen)
132b30d9c8 [net] Signal NODE_COMPACT_FILTERS if we're serving compact filters. (Jim Posen)
b3fbc94d4f Apply cfilters review fixups (John Newbery)
Pull request description:
If -peerblockfilters is configured, signal the `NODE_COMPACT_FILTERS` service bit to indicate that we are able to serve compact block filters, headers and checkpoints.
ACKs for top commit:
MarcoFalke:
re-review and Concept ACK f5c003d3ea
fjahr:
Code review ACK f5c003d3ea
clarkmoody:
Concept ACK f5c003d3ea
ariard:
Concept and Code Review ACK f5c003d
jonatack:
ACK f5c003d3e
Tree-SHA512: 34d1c153530a0e55d09046fe548c9dc37344b5d6d50e00af1b4e1de1e7b49de770fca8471346a17c151de9fe164776296bb3dd5af331977f0c3ef1e6fc906f85
Hold a reference to connman rather than a pointer because:
- PeerLogicValidation can't run without a connman
- The pointer never gets reseated
The alternative is to always assert that the pointer is non-null before
dereferencing.
Change the name from connman to m_connman at the same time to conform
with current style guidelines.
For a couple of years, Tor documentation has made
the term hidden service obsolete, in favor of onion
service.
This PR updates all the references in the code base.
fae8c28dae Pass mempool pointer to GetCoinsCacheSizeState (MarcoFalke)
fac674db20 Pass mempool pointer to UnloadBlockIndex (MarcoFalke)
faec851b6e test: Simplify cs_main locks (MarcoFalke)
Pull request description:
Split out from #19556
Instead of relying on the implicit mempool global, pass a mempool pointer (which can be `0`). This helps with testing, code clarity and unlocks the features described in #19556.
ACKs for top commit:
jnewbery:
code review ACK fae8c28dae
fjahr:
Code review ACK fae8c28dae
darosior:
Tested ACK fae8c28dae
jamesob:
ACK fae8c28dae ([`jamesob/ackr/19604.1.MarcoFalke.pass_mempool_pointer_to`](https://github.com/jamesob/bitcoin/tree/ackr/19604.1.MarcoFalke.pass_mempool_pointer_to))
Tree-SHA512: fa687518c8cda4a095bdbdfe56e01fae2fb16c13d51efbb1312cd6dc007611fc47f53f475602e4a843e3973c9410e6af5a81d6847bd2399f8262ca7205975728
f19fdd47a6 test: add test for CChainState::ResizeCoinsCaches() (James O'Beirne)
8ac3ef4699 add ChainstateManager::MaybeRebalanceCaches() (James O'Beirne)
f36aaa6392 Add CChainState::ResizeCoinsCaches (James O'Beirne)
b223111da2 txdb: add CCoinsViewDB::ChangeCacheSize (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/master/proposal
---
In the assumeutxo implementation draft (#15056), once a UTXO snapshot is loaded, a new chainstate object is created after initialization. This means that we have to reclaim some of the cache that we've allocated to the original chainstate (per `dbcache=`) to repurpose for the snapshot chainstate.
Furthermore, it makes sense to have different cache allocations depending on which chainstate is more active. While the snapshot chainstate is working to get to the network tip (and the background validation chainstate is idle), it makes sense that the snapshot chainstate should have the majority of cache allocation. And contrariwise once the snapshot has reached network tip, most of the cache should be given to the background validation chainstate.
This set of changes (detailed in the commit messages) allows us to dynamically resize the various coins caches. None of the functionality introduced here is used at the moment, but will be in the next AU PR (which introduces `ActivateSnapshot`).
`ChainstateManager::MaybeRebalanceCaches()` defines the (somewhat normative) cache allocations between the snapshot and background validation chainstates. I'd be interested in feedback if anyone has thoughts on the proportions I've set there.
ACKs for top commit:
ajtowns:
weak utACK f19fdd47a6 -- didn't find any major problems, but not super confident that I didn't miss anything
fjahr:
Code review ACK f19fdd4
ryanofsky:
Code review ACK f19fdd47a6. Only change since last review is constructor cleanup (no change in behavior). I think the suggestions here from ajtowns and others are good, but shouldn't delay merging the PR (and hold up assumeutxo)
Tree-SHA512: fffb7847fb6993dd4a1a41cf11179b211b0b20b7eb5f7cf6266442136bfe9d43b830bbefcafd475bfd4af273f5573500594aa41fff03e0ed5c2a1e8562ff9269
9c69cfe4c5 Add <datadir>/settings.json persistent settings storage. (Russell Yanofsky)
eb682c5700 util: Add ReadSettings and WriteSettings functions (Russell Yanofsky)
Pull request description:
Persistent settings are used in followup PRs #15936 to unify gui settings between bitcoin-qt and bitcoind, and #15937 to add a load_on_startup flag to the loadwallet RPC and maintain a dynamic list of wallets that should be loaded on startup that also can be shared between bitcoind and bitcoin-qt.
ACKs for top commit:
MarcoFalke:
Approach re-ACK 9c69cfe4c5🌾
jnewbery:
utACK 9c69cfe4c5
Tree-SHA512: 39fcc6051717117c9141e934de1d0d3f739484be4685cdf97d54de967c8c816502b4fd0de12114433beaa5c5b7060c810fd8ae4e2b3ce7c371eb729ac01ba2e1
2aac093a3d test: Add test coverage for -networkactive option (Hennadii Stepanov)
3c58129b12 net: Log network activity status change unconditionally (Hennadii Stepanov)
62fe6aa87e net: Add -networkactive option (Hennadii Stepanov)
Pull request description:
Some Bitcoin Core activity is completely local (offline), e.g., reindexing.
The `setnetworkactive` RPC command is already present. This PR adds the corresponding command-line argument / config option, and allows to start the client with disabled p2p network by providing `-networkactive=0` or `-nonetworkactive`.
This was done while reviewing #16981.
ACKs for top commit:
MarcoFalke:
re-ACK 2aac093a3d🏠
LarryRuane:
ACK 2aac093a3d
Tree-SHA512: 446d791b46d7b556d7694df7b1f88cd4fbc09301fe4eaf036b45cb8166ed806156353cc03788a07b633d5887d5eee30a7c02a2d4307141c8ccc75e0a88145636
The `setnetworkactive' RPC command is already present.
This new option allows to start the client with disabled p2p network
activity for testing or reindexing.
ec4c6a17e8 scripted-diff: replace MAX_BLOCKS_ONLY_CONNECTIONS with MAX_BLOCK_RELAY_ONLY_CONNECTIONS (glowang)
Pull request description:
We have two different concepts that have similar names: `-blocksonly` and `block-relay-only`, and the similarity of names could lead to confusion. `-blocksonly` disables all local receiving & relaying of transactions (with a few exceptions), while `block-relay-only`means that bitcoind will make 2 additional outbound connections that are only used for block relay.
In net.h and init.cpp, `MAX_BLOCKS_ONLY_CONNECTIONS` is used to represent the maximum number of `block-relay-only` outbound peers, which is 2. But this name sounds ambiguous, and I proposed a better name, `MAX_BLOCK_RELAY_ONLY_CONNECTION`.
ACKs for top commit:
jnewbery:
ACK ec4c6a17e8
Tree-SHA512: cfa592a7ff936f14d10cfc1e926a51b82bc0feaf104885a41ca8111b906cb3d1ec5536bab143a3cfca70aa49e9575c6995941eb6d3d7f4018d4535712342f155
314b49bd50 gui: Fix regression in GUI console (Hennadii Stepanov)
Pull request description:
The regression was introduced in #19056: if the GUI is running without `-server=1`, the `*txoutset*` call in the console returns "Shutting down".
Fix#19255.
ACKs for top commit:
ryanofsky:
Code review ACK 314b49bd50. Only change since last review is rebase
Tree-SHA512: 8ff85641a5c249858fecb1ab69c7a1b2850af651ff2a94aa41ce352b5b5bc95bc45c41e1767e871b51e647612d09e4d54ede3e20c313488afef5678826c51b62
Persistent settings are used in followup PRs #15936 to unify gui settings
between bitcoin-qt and bitcoind, and #15937 to add a load_on_startup flag to
the loadwallet RPC and maintain a dynamic list of wallets that should be loaded
on startup that also can be shared between bitcoind and bitcoin-qt.
2ad58381ff Clean up separated ban/discourage interface (Pieter Wuille)
b691f2df5f Replace automatic bans with discouragement filter (Pieter Wuille)
Pull request description:
This patch improves performance and resource usage around IP addresses that are banned for misbehavior. They're already not actually banned since #14929, as connections from them are still allowed, but they are preferred for eviction if the inbound connection slots are full.
Stop treating these like manually banned IP ranges, and instead just keep them in a rolling Bloom filter of misbehaving nodes, which isn't persisted to disk or exposed through the ban framework. The effect remains the same: preferred for eviction, avoided for outgoing connections, and not relayed to other peers.
Also change the name of this mechanism to "discouraged" to better reflect reality.
ACKs for top commit:
naumenkogs:
utACK 2ad58381ff
amitiuttarwar:
code review ACK 2ad58381ff
jonatack:
ACK 2ad5838 per changes since last review `git range-diff 3276c14 1f7e0ca 2ad5838`
jnewbery:
Code review ACK 2ad58381ff
Tree-SHA512: 5dedef401d9cbfa026812651303e6286223563dbeed7a10766ed536ac9e3f29ed4bd0df29cc6deadceeb35cbe9f066346add14ef0833958ca9f93d123fe7aab5
fab80fef61 refactor: Remove unused EnsureChainman (MarcoFalke)
fa34587f1c scripted-diff: Replace EnsureChainman with Assert in unit tests (MarcoFalke)
fa6ef701ad util: Add Assert identity function (MarcoFalke)
fa457fbd33 move-only: Move NDEBUG compile time check to util/check (MarcoFalke)
Pull request description:
The utility function is primarily useful to dereference pointer types, which are known to be not null at that time.
For example, the ArgsManager is known to exist when the wallets are started: https://github.com/bitcoin/bitcoin/pull/18923/files#diff-fdb2a1a1d8bc790fcddeb6cf5a42ac55R503 . Instead of silently relying on that assumption, `Assert` can be used to abort the program and avoid UB should the assumption ever be violated.
ACKs for top commit:
promag:
Tested ACK fab80fef61.
ryanofsky:
Code review ACK fab80fef61
Tree-SHA512: 830fba10152ba17d47c4dd42809c7e26f9fe6d38e17a2d5b3f054fd644a5c4c9841286ac421ec9bb28cea9f5faeb659740fcf00de6cc589d423fee7694c42d16
This patch improves performance and resource usage around IP
addresses that are banned for misbehavior. They're already not
actually banned, as connections from them are still allowed,
but they are preferred for eviction if the inbound connection
slots are full.
Stop treating these like manually banned IP ranges, and instead
just keep them in a rolling Bloom filter of misbehaving nodes,
which isn't persisted to disk or exposed through the ban
framework. The effect remains the same: preferred for eviction,
avoided for outgoing connections, and not relayed to other peers.
Also change the name of this mechanism to better reflect reality;
they're not banned, just discouraged.
Contains release notes and several interface improvements by
John Newbery.
fa0dfdf447 refactor: Remove confusing BlockIndex global (MarcoFalke)
Pull request description:
The global `::BlockIndex()` is problematic for several reasons:
* It returns a mutable reference to the block tree, without the appropriate lock annotation (`m_block_index` is guarded by `cs_main`). The current code is fine, but in the future this might lead to accidental races and data corruption.
* The rpc server shouldn't rely on node globals, but rather a context that is passed in to the RPC method.
* Tests might want to spin up their own block tree, and thus should also not rely on a single global.
Fix all issues by removing the global
ACKs for top commit:
promag:
Code review ACK fa0dfdf447.
jonatack:
re-ACK fa0dfdf
Tree-SHA512: 8f158fc5e1c67e73588a21c25677b3fa0fe442313b13ec24b87054806c59607d6ba0c062a865ce3e0ee568706bd0d1faa84febda21aff5bcd65dab172f74c52f
Also adds CCoinsViewCache::ReallocateCache() to attempt to free
memory that the cacheCoins's allocator may be hanging onto when
downsizing the cache.
Adds `CChainState::m_coins{tip,db}_cache_size_bytes` data members
so that we can reference cache size on a per-chainstate basis for
flushing.
99993489da test: Set -logthreadnames in unit tests (MarcoFalke)
fa4ea997b4 init: Setup scheduler in tests and init in exactly the same way (MarcoFalke)
Pull request description:
Generally the unit tests are single threaded, with the exception of the script check threads, the schedule, and optionally indexer threads.
Like the functional tests, the thread name can serve additional debug information, so set `-logthreadnames` in unit tests.
Can be tested with
```
./src/test/test_bitcoin -l test_suite -t validation_tests/test_combiner_all -- DEBUG_LOG_OUT
ACKs for top commit:
laanwj:
ACK 99993489da
Tree-SHA512: 3bdbfc211da146da64b50b0826246aff5c611a84b69ab896a55b3c9d1adc92c5975da36ab92aee577df82e229c4326b477f4105bfdd1a5df4c9a0b018cf61602
- Move the decision whether to translate an error message to where it is
defined. This simplifies call sites: no more `InitError(Untranslated(...))`.
- Make all functions in `util/error.h` consistently return a
`bilingual_str`. We've decided to use this as error message type so
let's roll with it.
This has no functional changes: no messages are changed, no new
translation messages are defined.
1a9ef1d398 refactor: Replace RecursiveMutex with Mutex in Shutdown() (Hennadii Stepanov)
Pull request description:
Step by step, going to replace all of the `RecursiveMutex` instances with the `Mutex` ones throughout the code base :)
Not sure if it is possible in all cases though...
This one is a low-hanging fruit.
ACKs for top commit:
MarcoFalke:
ACK 1a9ef1d398 Shutdown is not recursive, so the same thread can never lock twice (UB)
vasild:
ACK 1a9ef1d3 verified manually that `Shutdown()` is not called from places that could be called from inside `Shutdown()`.
Tree-SHA512: 362a507b1a6f97dc351f708224aedbfe4bee03c4398f394d78ee31c24d76a7012ffff0e6766866cd5fd9a8e0d8840f05a2741111fe583aa20d45f0af3df0dcfa
501e6ab4e7 doc: Add documentation for 'checklevel' argument in 'verifychain' RPC call (Calvin Kim)
Pull request description:
Rationale: When ```bitcoin-cli help verifychain``` is called, the user doesn't get any documentation about the ```checklevel``` argument, leading to issues like #18995.
This PR addresses that issue and adds documentation for what each level does, and that each level includes the checks of the previous levels.
ACKs for top commit:
jonatack:
ACK 501e6ab4e7 `git diff 292ed3c 501e6ab` shows only change since last review is the verifychain RPCHelpMan edit; rebuild and retested manually anyway
MarcoFalke:
ACK 501e6ab4e7🚝
Tree-SHA512: 09239f79c25b5c3022b8eb1f76198ba681305d7e8775038e46becffe5f6a14c572e0c5d06b0723fe9d4a015ec42c9f7ca7b80a2a93df0b1b66f5a84a80eeeeb1
fa9604c46f doc: noban precludes maxuploadtarget disconnects (MarcoFalke)
fa3999fe35 net: Reformat excessively long if condition into multiple lines (MarcoFalke)
Pull request description:
Whitelisting has been replaced by permission flags, so properly document this. See also #10131
ACKs for top commit:
hebasto:
ACK fa9604c46f, I have reviewed the code and it looks OK, I agree it can be merged.
ariard:
ACK fa9604c
Tree-SHA512: 5aee917ab9817719f01ec155487542118e17fa3d145ae7e4bc0e872b2cec39cde9e7fbdee2ae77e9a52700dd8bcc366de4224152e08e709d44d08e0d2f19c613
89f9fef1f7 refactor: Specify boost/thread/thread.hpp explicitly (Hennadii Stepanov)
fad8c890f5 txdb: Remove unused boost/thread (MarcoFalke)
faa958bc28 txindex: Remove unused boost/thread (MarcoFalke)
Pull request description:
There are predefined interruption points for `boost::thread`: https://www.boost.org/doc/libs/1_71_0/doc/html/thread/thread_management.html#interruption_points
However, non-boost threads such as `std::thread` or the `main()` thread can obviously not be interrupted. So remove all unused boost/thread from methods that are never executed in a `boost::thread`.
Most of them were accompanied by a `ShutdownRequested` anyway. So even if the current thread was a `boost::thread`, the interruption point would be redundant. (We only interrupt threads during shutdown)
ACKs for top commit:
fanquake:
ACK 89f9fef1f7
hebasto:
ACK 89f9fef1f7, tested on Linux Mint 19.3 (x86_64), verified shutdown in different scenarios.
Tree-SHA512: 17221dadedf2d107e5bda9e4f371cc4f8ffce6ad27cae41aa2b8f1150d8f1adf23d396585ca4a2dd25b1dc6f0d5c81fecd950d8557966ccb45a6d4a85a331d90
Building with -Wunreachable-code-loop-increment causes a warning
due to always returning on the first iteration of the loop that
outputs errors on invalid args.
Collect all errors, and output them in a single error message
after the loop completes, resolving the warning and avoiding
popup hell by outputting a seperate message for each error.
If -peerblockfilters is configured, signal the NODE_COMPACT_FILTERS service
bit to indicate that we are able to serve compact block filters, headers
and checkpoints.
b3f7f375ef refactor: Remove g_rpc_node global (Russell Yanofsky)
ccb5059ee8 scripted-diff: Remove g_rpc_node references (Russell Yanofsky)
6fca33b2ed refactor: Pass NodeContext to RPC and REST methods through util::Ref (Russell Yanofsky)
691c817b34 Add util::Ref class as temporary alternative for c++17 std::any (Russell Yanofsky)
Pull request description:
This PR removes the `g_rpc_node` global, to get same benefits we see removing other globals and make RPC code more testable, modular, and reusable.
This uses a hybrid of the approaches suggested in #17548. Instead of using `std::any`, which isn't available in c++11, or `void*`, which isn't type safe, it uses a small new `util::Ref` helper class, which acts like a simplified `std::any` that only holds references, not values.
Motivation for writing this was to provide an simpler alternative to #18647 by Harris Brakmić (brakmic) which avoids some shortcomings of that PR (https://github.com/bitcoin/bitcoin/pull/18647#issuecomment-617878826)
ACKs for top commit:
MarcoFalke:
re-ACK b3f7f375ef, only change is adding back const and more tests 🚾
ajtowns:
ACK b3f7f375ef
Tree-SHA512: 56292268a001bdbe34d641db1180c215351503966ff451e55cc96c9137f1d262225d7d7733de9c9da7ce7d7a4b34213a98c2476266b58c89dbbb0f3cb5aa5d70
e3047edfb6 test: use p2p constants in denial of service tests (fanquake)
25d8264c95 p2p: add MAX_FEELER_CONNECTIONS constant (tryphe)
Pull request description:
Extracted from #16003.
ACKs for top commit:
naumenkogs:
utACK e3047ed
Tree-SHA512: 14fc15292be4db2e825a0331dd189a48713464f622a91c589122c1a7135bcfd37a61e64af1e76d32880ded09c24efd54d3c823467d6c35367a380e0be33bd35f
When a node is configured with --blockfilterindex=basic and
-peerblockfilters it can serve compact block filters to its peers.
This commit adds the configuration option handling. Future commits
add compact block serving and service bits signaling.
faec063887 log: Use Join() helper when listing log categories (MarcoFalke)
Pull request description:
This removes the global `ListLogCategories` and replaces it with a one-line member function `LogCategoriesString`, which just calls `Join`.
Should be a straightforward refactor to get rid of a few LOC.
ACKs for top commit:
laanwj:
ACK faec063887
promag:
ACK faec063887, I also think it's fine as it is (re https://github.com/bitcoin/bitcoin/pull/18669#discussion_r412944724).
Tree-SHA512: 2f51f9ce1246eda5630015f3a869e36953c7eb34f311baad576b92d7829e4e88051c6189436271cd0a13732a49698506345b446b98fd28e58edfb5b62169f1c9
c9017ce3bc protect g_chainman with cs_main (James O'Beirne)
2b081c4568 test: add basic tests for ChainstateManager (James O'Beirne)
4ae29f5f0c use ChainstateManager to initialize chainstate (James O'Beirne)
5b690f0aae refactor: move RewindBlockIndex to CChainState (James O'Beirne)
89cdf4d569 validation: introduce unused ChainstateManager (James O'Beirne)
8e2ecfe249 validation: add CChainState.m_from_snapshot_blockhash (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/master/proposal
---
This changeset introduces `ChainstateManager`, which is responsible for creating and managing access to multiple chainstates. Until we allow chainstate creation from UTXO snapshots (next assumeutxo PR?) it's basically unnecessary, but it is a prerequisite for background IBD support.
Changes are also made to the initialization process to make use of `g_chainman` and thus clear the way for multiple chainstates being loaded on startup.
One immediate benefit of this change is that we no longer have the `g_blockman` global, but instead have the ChainstateManager inject a reference of its shared BlockManager into any chainstate it creates.
Another immediate benefit is that uses of `ChainActive()` and `ChainstateActive()` are now covered by lock annotations. Because use of `g_chainman` is annotated to require cs_main, these two functions subsequently follow.
Because of whitespace changes, this diff looks bigger than it is. E.g., 4813167d98 is most easily reviewed with
```sh
git show --color-moved=dimmed_zebra -w 4813167d98
```
ACKs for top commit:
MarcoFalke:
re-ACK c9017ce3bc📙
fjahr:
Code Review Re-ACK c9017ce3bc
ariard:
Code Review ACK c9017ce
ryanofsky:
Code review ACK c9017ce3bc. No changes since last review other than a straight rebase
Tree-SHA512: 3f250d0dc95d4bfd70852ef1e39e081a4a9b71a4453f276e6d474c2ae06ad6ae6a32b4173084fe499e1e9af72dd9007f4a8a375c63ce9ac472ffeaada41ab508
7fcdec0f32 Remove PID file at the very end (Hennadii Stepanov)
Pull request description:
While reproducing the bug from #18517, I've noticed that the `bitcoind.pid` file has already been removed when the `bitcoind` hangs.
This PR makes `Shutdown()` keep the `bitcoind.pid` file available until the end.
ACKs for top commit:
MarcoFalke:
ACK 7fcdec0f32
emilengler:
utACK 7fcdec0f32
promag:
Code review ACK 7fcdec0f32.
theStack:
Code review ACK 7fcdec0f32
Tree-SHA512: 9732ef34e137dbee70a06d922b316b8ea7b9a1c959cf8861b6940cd789336dc19ee468a4c3a28d95d1458076a48270c676b0ff27fec30cf57eced6ddab0a2a9b
621e86ee8d Update -blocksonly documentation (glowang)
Pull request description:
When -blocksonly is set to 1, it interacts with the -walletbroadcast
parameter and sets it to 0.
This behavior is not captured by the current documentation, which
claims that -blocksonly does not impact any wallet transactions at
all.
Fixes#17294
ACKs for top commit:
MarcoFalke:
ACK 621e86ee8d
Tree-SHA512: f47bfb40a196c23e62505e1d4f79094011ac7c21fc9b920fad60cdadb5c4f48e993be1f015e26e568ce329967c24848fd7b665a6cffd3881f4cfcd2fd0081ed8
When -blocksonly is set to 1, it interacts with the -walletbroadcast
parameter and sets it to 0 if it has not been set already.This behavior
is not captured by the current documentation, which claims that -blocksonly
does not impact any wallet transactions.
Update the max number of outgoing peers from 8 to 10, due to the
addition of two -blocksonly peers.
e57980b473 [mempool] Remove NotifyEntryAdded and NotifyEntryRemoved callbacks (John Newbery)
2dd561f361 [validation] Remove pool member from ConnectTrace (John Newbery)
969b65f3f5 [validation] Remove NotifyEntryRemoved callback from ConnectTrace (John Newbery)
5613f9842b [validation] Remove conflictedTxs from PerBlockConnectTrace (John Newbery)
cdb893443c [validation interface] Remove vtxConflicted from BlockConnected (John Newbery)
1168394d75 [wallet] Notify conflicted transactions in TransactionRemovedFromMempool (John Newbery)
Pull request description:
These boost signals were added in #9371, before we had a `TransactionRemovedFromMempool` method in the validation interface. The `NotifyEntryAdded` callback was used by validation to build a vector of conflicted transactions when connecting a block, which the wallet was notified of in the `BlockConnected` CValidationInterface callback.
Now that we have a `TransactionRemovedFromMempool` callback, we can fire that signal directly from the mempool for conflicted transactions.
Note that #9371 was implemented to ensure `-walletnotify` events were fired for these conflicted transaction. We inadvertently stopped sending these notifications in #16624 (Sep 2019 commit 7e89994). We should probably fix that, but in a different PR.
ACKs for top commit:
jonatack:
Re-ACK e57980b
ryanofsky:
Code review ACK e57980b473, no code changes since previous review, but helpful new code comments have been added and the PR description is now more clear about where the old code came from
Tree-SHA512: 3bdbaf1ef2731e788462d4756e69c42a1efdcf168691ce1bbfdaa4b7b55ac3c5b1fd4ab7b90bcdec653703600501b4224d252cfc086aef28f9ce0da3b0563a69
fa36f3a295 refactor: move DUMP_BANS_INTERVAL to banman.h (MarcoFalke)
fadafb83cf scheduler: Make schedule* methods type safe (MarcoFalke)
fa70ccc6c4 scheduler: Use C++11 member initialization, add shutdown assert (MarcoFalke)
Pull request description:
Main benefit is that stuff like `15 * 60 * 1000` is replaced by `minutes{15}`
ACKs for top commit:
vasild:
ACK fa36f3a (code review, not tested)
ajtowns:
ACK fa36f3a295
jonatack:
ACK fa36f3a
Tree-SHA512: f35f1a1d643dfa676bd47474659f6492ed05cca04cdb556064b126f654a6a44a4b93fcaddcdcd41faf81b8f11439c11e5c7ab88685ba2eef12f7188843d17ad8
I'd previously attempted to create a specialized lock for ChainstateManager,
but it turns out that because that lock would be required for functions like
ChainActive() and ChainstateActive(), it created irreconcilable lock inversions
since those functions are used so broadly throughout the codebase.
Instead, I'm just using cs_main to protect the contents of g_chainman.
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
NotifyEntryAdded never had any subscribers so can be removed.
Since ConnectTrace no longer subscribes to NotifyEntryRemoved, there are
now no subscribers.
The CValidationInterface TransactionAddedToMempool and
TransactionRemovedFromMempool methods can now provide this
functionality. There's no need for a special notifications framework for
the mempool.
Calling interrupt_all() will immediately stop the scheduler, so it's
safe to invoke stop() beforehand, and this removes the reliance on boost
to interrupt serviceQueue().
and update feature_asmap.py and test_runner.py
This commit moves the asmap init.cpp code from the end of "Step 12: start node"
to "Step 6: network initialization" to provide feedback on passing an -asmap
config arg much more quickly. This change speeds up the feature_asmap.py
functional test file from 60 to 5 seconds by accelerating the 2 tests that use
`assert_start_raises_init_error`.
Credit to Wladimir J. van der Laan for the suggestion.
- move asmap #includes to sorted positions in addrman and init (move-only)
- remove redundant quotes in asmap InitError, update test
- remove full stops from asmap logging to be consistent with debug logging,
update tests
facb71576c net: Remove forcerelay of rejected txs (MarcoFalke)
Pull request description:
This removes the code that supposedly handled the forced relay of txs from a permissioned peer that were rejected from our mempool. The removal should be fine, because it is dead code for the following reasons:
* While `RelayTransaction` enqueues the inv for all peers, the inv is never processed because it can not be found in the mempool. See 4a07233076/src/net_processing.cpp (L3862-L3866)
* Even if the peers we intended to send the inv to can somehow reply with a getdata to the never-received inv, they won't receive the tx as a reply because it was never added to the "relay memory" (`mapRelay`)
The dead code is (obviously) untested: https://marcofalke.github.io/btc_cov/total.coverage/src/net_processing.cpp.gcov.html#2574
This feature was (intentionally or accidentally) removed in 4d8993b346, which was released in Bitcoin Core 0.13.0. So all currently supported versions of Bitcoin Core ship without this feature. I am not aware of any complaints about this feature or actual documented use-cases. So instead of reviving an unneeded feature, just remove the dead code.
ACKs for top commit:
hebasto:
ACK facb71576c, locally running the unit and functional tests.
Tree-SHA512: bfceae6f2983c1510fa0649a9a63c343cbbc1c4ab3a3698039cccf454c81e58c8f5114b147ed42a1bc867da74c43a5b53764ab14f942e191b6f59079044108b5
8bca30ea17 [rpc] expose ability to mock scheduler via the rpc (Amiti Uttarwar)
7c8b6e5b52 [lib] add scheduler to node context (Amiti Uttarwar)
930d837542 [test] add chainparams property to indicate chain allows time mocking (Amiti Uttarwar)
1cd43e83c6 [test] unit test for new MockForward scheduler method (Amiti Uttarwar)
a6f63598ad [util] allow scheduler to be mocked (Amiti Uttarwar)
Pull request description:
This PR is to support functional tests by allowing the scheduler to be mocked via the RPC.
It adds a `MockForward` method to the scheduler class that iterates through the task queue and reschedules them to be `delta_seconds` sooner.
This is currently used to support functional testing of the "unbroadcast" set tracking in #18038. If this patch is accepted, it would also be useful to simplify the code in #16698.
ACKs for top commit:
MarcoFalke:
ACK 8bca30ea17, only change is some style fixups 🕓
Tree-SHA512: 2a97fe8ade2b7fd1fb5cdfa1dcafb3227a377d7a847e3845a228bc119eb77824b4aefa43d922a06d583939b22725e223f308cf092961048079d36f6b1d9a639b
c86bc14408 Make asmap Interpret tolerant of malicious map data (Pieter Wuille)
38c2395d7a Use ASNs for mapped IPv4 addresses correctly (Pieter Wuille)
6f8c937312 Mark asmap const in statistics code (Pieter Wuille)
d58bcdc4b5 Avoid asmap copies in initialization (Pieter Wuille)
Pull request description:
Here are a few things to improve in the asmap implementation. The first two commits are just code improvements. The last one is a bugfix (the exsting code wouldn't correctly apply ASN lookups to mapped/embedded IPv4 addresses).
ACKs for top commit:
practicalswift:
ACK c86bc14408 -- patch looks correct
naumenkogs:
utACK c86bc14
laanwj:
ACK c86bc14408
jonatack:
ACK c86bc14408 code looks correct, built/ran tests, bitcoind with -asmap pointed to asmap/demo.map
Tree-SHA512: 1036f43152754d621bfbecfd3b7c7276e4670598fcaed42a3d275e51fa2cf3653e2c9e9cfa714f6c7719362541510e92171e076ac4169b55a0cc8908b2d514c0
3c1bc40205 Add extra logging of asmap use and bucketing (Gleb Naumenko)
e4658aa8ea Return mapped AS in RPC call getpeerinfo (Gleb Naumenko)
ec45646de9 Integrate ASN bucketing in Addrman and add tests (Gleb Naumenko)
8feb4e4b66 Add asmap utility which queries a mapping (Gleb Naumenko)
Pull request description:
This PR attempts to solve the problem explained in #16599.
A particular attack which encouraged us to work on this issue is explained here [[Erebus Attack against Bitcoin Peer-to-Peer Network](https://erebus-attack.comp.nus.edu.sg/)] (by @muoitranduc)
Instead of relying on /16 prefix to diversify the connections every node creates, we would instead rely on the (ip -> ASN) mapping, if this mapping is provided.
A .map file can be created by every user independently based on a router dump, or provided along with the Bitcoin release. Currently we use the python scripts written by @sipa to create a .map file, which is no larger than 2MB (awesome!).
Here I suggest adding a field to peers.dat which would represent a hash of asmap file used while serializing addrman (or 0 for /16 prefix legacy approach).
In this case, every time the file is updated (or grouping method changed), all buckets will be re-computed.
I believe that alternative selective re-bucketing for only updated ranges would require substantial changes.
TODO:
- ~~more unit tests~~
- ~~find a way to test the code without including >1 MB mapping file in the repo.~~
- find a way to check that mapping file is not corrupted (checksum?)
- comments and separate tests for asmap.cpp
- make python code for .map generation public
- figure out asmap distribution (?)
~Interesting corner case: I’m using std::hash to compute a fingerprint of asmap, and std::hash returns size_t. I guess if a user updates the OS to 64-bit, then the hash of asap will change? Does it even matter?~
ACKs for top commit:
laanwj:
re-ACK 3c1bc40205
jamesob:
ACK 3c1bc40205 ([`jamesob/ackr/16702.3.naumenkogs.p2p_supplying_and_using`](https://github.com/jamesob/bitcoin/tree/ackr/16702.3.naumenkogs.p2p_supplying_and_using))
jonatack:
ACK 3c1bc40205
Tree-SHA512: e2dc6171188d5cdc2ab2c022fa49ed73a14a0acb8ae4c5ffa970172a0365942a249ad3d57e5fb134bc156a3492662c983f74bd21e78d316629dcadf71576800c
9dd58ca611 init: Stop indexes on shutdown after ChainStateFlushed callback. (Jim Posen)
Pull request description:
Replaces https://github.com/bitcoin/bitcoin/pull/17852.
Currently, the latest index state may not be committed to disk on shutdown. The state is committed on `ChainStateFlushed` callbacks and the current init order unregisters the indexes as validation interfaces before the final `ChainStateFlushed` callback is called on them.
Issue identified by paulyc.
For review: an alternative or supplemental solution would be to call `Commit` at the end of `BaseIndex::Stop`. I don't see any harm in doing so and it makes the less prone to user error. However, the destructor would have to be modified to not call `Stop` because `Commit` calls a virtual method, so I figured it wasn't worth it. But I'm curious how others feel.
ACKs for top commit:
fjahr:
tested ACK 9dd58ca611
paulyc:
> Code review ACK [9dd58ca](9dd58ca611), but failed to test because I can't reproduce the original problem.
kallewoof:
Tested ACK 9dd58ca611
promag:
Code review ACK 9dd58ca611, but failed to test because I can't reproduce the original problem.
Tree-SHA512: 2918380b699833cb7eab07456d1667dbf8ebbe2d2b5988300a3cf5b6a6cfc818b6d9086e1936ffe7881f67e409306c4b91d61a08a169cfd0a301383479d4f3cb
3d5d7aad26 windows: remove call to SetProcessDEPPolicy (fanquake)
f2645c2601 windows: Enable heap terminate-on-corruption (fanquake)
Pull request description:
This PR is currently two separate changes:
#### Enable heap terminate-on-corruption
This is default behavior from Windows 8 onwards, however we still support Windows 7, so it should make sense to explicitly enable this. This is also done by projects like tor, chromium etc.
> Enables the terminate-on-corruption feature. If the heap manager detects an error in any heap used by the process, it calls the Windows Error Reporting service and terminates the process.
After a process enables this feature, it cannot be disabled.
More info [here](https://docs.microsoft.com/en-us/windows/win32/api/heapapi/nf-heapapi-heapsetinformation).
#### Remove call to SetProcessDEPPolicy()
DEP is always enabled on 64-bit Windows processes, and `SetProcessDEPPolicy()` only works when called from a 32-bit process. I've tested that our current usage always fails ([as expected](https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setprocessdeppolicy#remarks)) with [ERROR_NOT_SUPPORTED](16151c441e/mingw-w64-headers/include/error.h (L42)).
Please don't add a "Needs gitian build" tag here yet.
ACKs for top commit:
sipsorcery:
ACK 3d5d7aad26.
laanwj:
ACK 3d5d7aad26
Tree-SHA512: 0948bcf165685b6b573f2cd950680c34356b856690de655ced2b93d497e02e7b22aa195c99f6ce33202f182622c67302ff31c98ab51b7d050574af3debdee5ce
-BEGIN VERIFY SCRIPT-
# Delete outdated alias for RecursiveMutex
sed -i -e '/CCriticalSection/d' ./src/sync.h
# Replace use of outdated alias with RecursiveMutex
sed -i -e 's/CCriticalSection/RecursiveMutex/g' $(git grep -l CCriticalSection)
-END VERIFY SCRIPT-
Instead of using /16 netgroups to bucket nodes in Addrman for connection
diversification, ASN, which better represents an actor in terms
of network-layer infrastructure, is used.
For testing, asmap.raw is used. It represents a minimal
asmap needed for testing purposes.
2081442c42 test: Add test for rpc_whitelist (Emil Engler)
7414d3820c Add RPC Whitelist Feature from #12248 (Jeremy Rubin)
Pull request description:
Summary
====
This patch adds the RPC whitelisting feature requested in #12248. RPC Whitelists help enforce application policies for services being built on top of Bitcoin Core (e.g., your Lightning Node maybe shouldn't be adding new peers). The aim of this PR is not to make it advisable to connect your Bitcoin node to arbitrary services, but to reduce risk and prevent unintended access.
Using RPC Whitelists
====
The way it works is you specify (in your bitcoin.conf) configurations such as
```
rpcauth=user1:4cc74397d6e9972e5ee7671fd241$11849357f26a5be7809c68a032bc2b16ab5dcf6348ef3ed1cf30dae47b8bcc71
rpcauth=user2:181b4a25317bff60f3749adee7d6bca0$d9c331474f1322975fa170a2ffbcb176ba11644211746b27c1d317f265dd4ada
rpcauth=user3:a6c8a511b53b1edcf69c36984985e$13cfba0e626db19061c9d61fa58e712d0319c11db97ad845fa84517f454f6675
rpcwhitelist=user1:getnetworkinfo
rpcwhitelist=user2:getnetworkinfo,getwalletinfo, getbestblockhash
rpcwhitelistdefault=0
```
Now user1 can only call getnetworkinfo, user2 can only call getnetworkinfo or getwalletinfo, while user3 can still call all RPCs.
If any rpcwhitelist is set, act as if all users are subject to whitelists unless rpcwhitelistdefault is set to 0. If rpcwhitelistdefault is set to 1 and no rpcwhitelist is set, act as if all users are subject to whitelists.
Review Request
=====
In addition to normal review, would love specific review from someone working on LN (e.g., @ roasbeef) and someone working on an infrastructure team at an exchange (e.g., @ jimpo) to check that this works well with their system.
Notes
=====
The rpc list is spelling sensitive -- whitespace is stripped though. Spelling errors fail towards the RPC call being blocked, which is safer.
It was unclear to me if HTTPReq_JSONRPC is the best function to patch this functionality into, or if it would be better to place it in exec or somewhere else.
It was also unclear to me if it would be preferred to cache the whitelists on startup or parse them on every RPC as is done with multiUserAuthorized. I opted for the cached approach as I thought it was a bit cleaner.
Future Work
=====
In a future PR, I would like to add an inheritance scheme. This seemed more controversial so I didn't want to include that here. Inheritance semantics are tricky, but it would also make these whitelists easier to read.
It also might be good to add a `getrpcwhitelist` command to facilitate permission discovery.
Tests
=====
Thanks to @ emilengler for adding tests for this feature. The tests cover all cases except for where `rpcwhitelistdefault=1` is used, given difficulties around testing with the current test framework.
ACKs for top commit:
laanwj:
ACK 2081442c42
Tree-SHA512: 0dc1ac6a6f2f4b0be9c9054d495dd17752fe7b3589aeab2c6ac4e1f91cf4e7e355deedcb5d76d707cbb5a949c2f989c871b74d6bf129351f429569a701adbcbf
fa538813b1 scripted-diff: Replace ::mempool with m_node.mempool in tests (MarcoFalke)
8888ad02e2 test: Replace recursive lock with locking annotations (MarcoFalke)
fac07f2038 node: Add reference to mempool in NodeContext (MarcoFalke)
Pull request description:
This is the first step toward making the mempool a global that is not initialized before main.
#### Motivation
Currently the mempool is a global that is initialized before the `main` function. This is confusing and easy to get wrong. E.g. the mempool constructor queries state that has not been initialized, like randomness (fixed), or command line arguments (not an issue last time I checked). Also without having the chainstate (chain tip) initialized first, it doesn't make conceptually sense to have a mempool, since the mempool builds txs on top of the utxo set (chain tip).
Finally, in the future someone might want to run a consensus-only full node (`-nowallet -noblockfilter -no... -nomempool` command line options) that only verifies blocks and updates the utxo set.
This is conceptually the same change that has already been done for the connection manager `CConnman`.
ACKs for top commit:
jnewbery:
utACK fa538813b1
ariard:
Tested ACK fa53881.
Tree-SHA512: 2c446a8a51476354aad7126c2b833500d36b24490caa94f847b2bdc622054de0dae28980f23e3d91b1b492dc32931656d98dbd019af9e4e58f2f8c5375aac694
Currently it is an alias to the global ::mempool and should be used as
follows.
* Node code (validation and transaction relay) can use either ::mempool
or node.mempool, whichever seems a better fit.
* RPC code should use the added convenience getter EnsureMempool, which
makes sure the mempool exists before use. This prepares the RPC code
to a future where the mempool might be disabled at runtime or compile
time.
* Test code should use m_node.mempool directly, as the mempool is always
initialized for tests.
* Instead of calling RandAddSeedSleep anytime the scheduler goes
idle, call its replacement (RandAddSeedPeriodic) just once per
minute. This has better guarantees of actually being run, and
helps limit how frequently the dynamic env data is gathered.
* Since this code runs once per minute regardless now, we no
longer need to keep track of the last time strengthening was
run; just do it always.
* Make strengthening time context dependent (100 ms at startup,
10 ms once per minute afterwards).
5506ecfe7a [refactor] Replace global int nScriptCheckThreads with bool (John Newbery)
d9957623b4 [tests] Don't use TestingSetup in the checkqueue_tests (John Newbery)
Pull request description:
The meaning of this value is confusing. Refactor it and add comments.
ACKs for top commit:
sipa:
ACK 5506ecfe7a
promag:
ACK 5506ecfe7a, only change was addressing my nits.
laanwj:
Code review ACK 5506ecfe7a
MarcoFalke:
ACK 5506ecfe7a🥐
Tree-SHA512: 78536727c98d2c23f3c0f3f169131474fef9a4486ae65029011caf06eab30f6f70ff73a65b2fb04a5d969fc1150858d1c6ea4767f04d48c1eea6b829316d0e63
The global nScriptCheckThreads int is confusing and is only needed for
its int-ness in AppInitMain. Move all `-par` parsing logic there and
replace the int nScriptCheckThreads with a bool
g_parallel_script_checks.
Also tidy up logic and improve comments.
104f7de593 remove old bootstrap relevant code (tryphe)
Pull request description:
This picks up #15954
I fixed the code and added at a functional test utilizing the scripts in `contrib/linearize` as suggested by @MarcoFalke .
ACKs for top commit:
laanwj:
ACK 104f7de593
Tree-SHA512: acac9f285f9785fcbc3afc78118461e45bec2962f90ab90e9f82f3ad28adc90a44f0443b712458ccf486e46d891eb8a67f53e7bee5fa6d89e4387814fe03f117
a8b82867d5 Fix incorrect help-debug for -checkpoints (Antoine Riard)
Pull request description:
ACKs for top commit:
jnewbery:
ACK a8b82867d5 for improving the `-prune` help text.
MarcoFalke:
ACK a8b82867d5
Tree-SHA512: 973fa97436be09a9939386dc00023420a7296a9e268356bf26aa06468f9f0d2c822205a4f1ce8f44a0562aa64ad90a43dec5697af656ef28ba6829e4e4360e94
3004d5a12d [validation] Remove fMissingInputs from AcceptToMemoryPool() (John Newbery)
c428622a5b [validation] Remove unused first_invalid parameter from ProcessNewBlockHeaders() (John Newbery)
7204c6434b [validation] Remove useless ret parameter from Invalid() (John Newbery)
1a37de4b31 [validation] Remove error() calls from Invalid() calls (John Newbery)
067981e492 [validation] Tidy Up ValidationResult class (John Newbery)
a27a2957ed [validation] Add CValidationState subclasses (John Newbery)
Pull request description:
Carries out some remaining tidy-ups remaining after PR 15141:
- split ValidationState into TxValidationState and BlockValidationState (commit from ajtowns)
- various minor code style tidy-ups to the ValidationState class
- remove the useless `ret` parameter from `ValidationState::Invalid()`
- remove the now unused `first_invalid` parameter from `ProcessNewBlockHeaders()`
- remove the `fMissingInputs` parameter from `AcceptToMemoryPool()`, and deal with missing inputs the same way as other errors by using the `TxValidationState` object.
Tip for reviewers (thanks ryanofsky!): The first commit ("[validation] Add CValidationState subclasses" ) is huge and can be easier to start reviewing if you revert the rote, mechanical changes:
Substitute the commit hash of commit "[validation] Add CValidationState subclasses" for <CommitHash> in the commands below.
```sh
git checkout <CommitHash>
git grep -l ValidationState | xargs sed -i 's/BlockValidationState\|TxValidationState/CValidationState/g'
git grep -l ValidationResult | xargs sed -i 's/BlockValidationResult\|TxValidationResult/ValidationInvalidReason/g'
git grep -l MaybePunish | xargs sed -i 's/MaybePunishNode\(ForBlock\|ForTx\)/MaybePunishNode/g'
git diff HEAD^
```
After that it's possible to easily see the mechanical changes with:
```sh
git log -p -n1 -U0 --word-diff-regex=. <CommitHash>
```
ACKs for top commit:
laanwj:
ACK 3004d5a12d
amitiuttarwar:
code review ACK 3004d5a12d. Also built & ran tests locally.
fjahr:
Code review ACK 3004d5a12d . Only nit style change and pure virtual destructor added since my last review.
ryanofsky:
Code review ACK 3004d5a12d. Just whitespace change and pure virtual destructor added since last review.
Tree-SHA512: 511de1fb380a18bec1944ea82b513b6192df632ee08bb16344a2df3c40811a88f3872f04df24bc93a41643c96c48f376a04551840fd804a961490d6c702c3d36
362ded410b Avoid using g_rpc_node global in wallet code (Russell Yanofsky)
8922d7f6b7 scripted-diff: Remove g_connman, g_banman globals (Russell Yanofsky)
e6f4f895d5 Pass NodeContext, ConnMan, BanMan references more places (Russell Yanofsky)
4d5448c76b MOVEONLY: Move NodeContext struct to node/context.h (Russell Yanofsky)
301bd41a2e scripted-diff: Rename InitInterfaces to NodeContext (Russell Yanofsky)
Pull request description:
This change is mainly a naming / organization change intended to simplify #10102. It:
- Renames struct InitInterfaces to struct NodeContext and moves it from
src/init.h to src/node/context.h. This is a cosmetic change intended to make
the point of the struct more obvious.
- Gets rid of BanMan and ConnMan globals making them NodeContext members
instead. Getting rid of these globals has been talked about in past as a way
to implement testing and simulations. Making them NodeContext members is a
way of keeping them accessible without the globals.
- Splits g_rpc_interfaces global into g_rpc_node and g_rpc_chain globals. This
better separates node and wallet rpc methods. Node RPC methods should have
access NodeContext, while wallet RPC methods should only have indirect access
to node functionality via interfaces::Chain.
- Adds NodeContext& references to interfaces::Chain class and the
interfaces::MakeChain() function. This is needed to access ConnMan and BanMan
instances without the globals.
- Gets rid of redundant Node and Chain instances in Qt tests. This is
needed due to the previous MakeChain change, and also makes test setup a
little more straightforward. More cleanup could be done in the future, but it
will require deduplication of bitcoind, bitcoin-qt, and TestingSetup init
code.
ACKs for top commit:
laanwj:
ACK 362ded410b
Tree-SHA512: 9ae6ff1e33423291d1e52056bac95e0874538390892a6e83c4c115b3c73155a8827c0191b46eb3d14e3b3f6c23ccb08095490880fbc3188026319c71739f7db2
fa734603b7 wallet: Fix segmentation fault in CreateWalletFromFile (MarcoFalke)
fab3c34412 test: Print both messages on failure in assert_raises_message (MarcoFalke)
faa13539d5 wallet: Fix documentation around WalletParameterInteraction (MarcoFalke)
Pull request description:
Comes with a test to aid review. The test should fail without the fix to bitcoind
The following `CreateWalletFromFile` issues are fixed:
* `walletFile` refers to freed memory and will thus corrupt the debug.log and/or crash the node if read
* `WalletParameterInteraction` was moved to `CreateWalletFromFile` and `WalletInit::ParameterInteraction` without updating the documentation
ACKs for top commit:
promag:
ACK fa734603b7.
darosior:
ACK fa734603b7
meshcollider:
LGTM, code-read ACK fa734603b7
Tree-SHA512: 2aceb63a3f25b90a840cfa08d37f5874aad4eb3df8c2ebf94e2ed18b55809b185e6920bdb345b988bff1fcea5e68a214fe06c361f7da2c01a3cc29e0cc421cb4
0ba08020c9 Disconnect peers violating blocks-only mode (Suhas Daftuar)
937eba91e1 doc: improve comments relating to block-relay-only peers (Suhas Daftuar)
430f489027 Don't relay addr messages to block-relay-only peers (Suhas Daftuar)
3a5e885306 Add 2 outbound block-relay-only connections (Suhas Daftuar)
b83f51a4bb Add comment explaining intended use of m_tx_relay (Suhas Daftuar)
e75c39cd42 Check that tx_relay is initialized before access (Suhas Daftuar)
c4aa2ba822 [refactor] Change tx_relay structure to be unique_ptr (Suhas Daftuar)
4de0dbac9b [refactor] Move tx relay state to separate structure (Suhas Daftuar)
26a93bce29 Remove unused variable (Suhas Daftuar)
Pull request description:
Transaction relay is optimized for a combination of redundancy/robustness as well as bandwidth minimization -- as a result transaction relay leaks information that adversaries can use to infer the network topology.
Network topology is better kept private for (at least) two reasons:
(a) Knowledge of the network graph can make it easier to find the source IP of a given transaction.
(b) Knowledge of the network graph could be used to split a target node or nodes from the honest network (eg by knowing which peers to attack in order to achieve a network split).
We can eliminate the risks of (b) by separating block relay from transaction relay; inferring network connectivity from the relay of blocks/block headers is much more expensive for an adversary.
After this commit, bitcoind will make 2 additional outbound connections that are only used for block relay. (In the future, we might consider rotating our transaction-relay peers to help limit the effects of (a).)
ACKs for top commit:
sipa:
ACK 0ba08020c9
ajtowns:
ACK 0ba08020c9 -- code review, ran tests. ran it on mainnet for a couple of days with MAX_BLOCKS_ONLY_CONNECTIONS upped from 2 to 16 and didn't observe any unexpected behaviour: it disconnected a couple of peers that tried sending inv's, and it successfully did compact block relay with some block relay peers.
TheBlueMatt:
re-utACK 0ba08020c9. Pointed out that stats.fRelayTxes was sometimes uninitialized for blocksonly peers (though its not a big deal and only effects RPC), which has since been fixed here. Otherwise changes are pretty trivial so looks good.
jnewbery:
utACK 0ba08020c9
jamesob:
ACK 0ba08020c9
Tree-SHA512: 4c3629434472c7dd4125253417b1be41967a508c3cfec8af5a34cad685464fbebbb6558f0f8f5c0d4463e3ffa4fa3aabd58247692cb9ab8395f4993078b9bcdf
Transaction relay is primarily optimized for balancing redundancy/robustness
with bandwidth minimization -- as a result transaction relay leaks information
that adversaries can use to infer the network topology.
Network topology is better kept private for (at least) two reasons:
(a) Knowledge of the network graph can make it easier to find the source IP of
a given transaction.
(b) Knowledge of the network graph could be used to split a target node or
nodes from the honest network (eg by knowing which peers to attack in order to
achieve a network split).
We can eliminate the risks of (b) by separating block relay from transaction
relay; inferring network connectivity from the relay of blocks/block headers is
much more expensive for an adversary.
After this commit, bitcoind will make 2 additional outbound connections that
are only used for block relay. (In the future, we might consider rotating our
transaction-relay peers to help limit the effects of (a).)
Translated strings should not end up in the debug log, stderr, or
returned by an RPC.
Changing the util methods in util/error to return a bilingual_str paves
the way to achieve this goal in the long term.
fa27c55b05 util: Move ResolveErrMsg to util/error (MarcoFalke)
Pull request description:
Pull request https://github.com/bitcoin/bitcoin/pull/16248#discussion_r314035862 duplicated the body of this util function. The whole point of the util function is to be shared, so do that here as a fixup to #16248
ACKs for top commit:
Sjors:
utACK fa27c55
ryanofsky:
utACK fa27c55b05
Tree-SHA512: e2b25ae05082fe9d0ee94bdc7d51f801bd9f78e8fc2b141e9a313e008dbb8a77653fe876e111c802c676859c6b76c37a673d1f8cfbe7ad25607a5ffcffde19fd
e78aaf41f4 [docs] Add release notes for burying bip 9 soft fork deployments (John Newbery)
8319e738f9 [tests] Add coverage for the content of getblockchaininfo.softforks (James O'Beirne)
0328dcdcfc [Consensus] Bury segwit deployment (John Newbery)
1c93b9b31c [Consensus] Bury CSV deployment height (John Newbery)
3862e473f0 [rpc] Tidy up reporting of buried and ongoing softforks (John Newbery)
Pull request description:
This hardcodes CSV and segwit activation heights, similar to the BIP 90 buried deployments for BIPs 34, 65 and 66.
CSV and segwit have been active for over 18 months. Hardcoding the activation height is a code simplification, makes it easier to understand segwit activation status, and reduces technical debt.
This was originally attempted by jl2012 in #11398 and again by me in #12360.
ACKs for top commit:
ajtowns:
ACK e78aaf41f4 ; checked diff to previous acked commit, checked tests still work
ariard:
ACK e78aaf4, check diff, run the tests again and successfully activated csv/segwit heights on mainnet as expected.
MarcoFalke:
ACK e78aaf41f4 (still didn't check if the mainnet block heights are correct, but the code looks good now)
Tree-SHA512: 7e951829106e21a81725f7d3e236eddbb59349189740907bb47e33f5dbf95c43753ac1231f47ae7bee85c8c81b2146afcdfdc11deb1503947f23093a9c399912
582d2cd747 Cover UTXO set access with lock annotations (James O'Beirne)
5693530685 refactor: have CCoins* data managed under CChainState (James O'Beirne)
fae6ab6aed refactor: pcoinsTip -> CChainState::CoinsTip() (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal
---
This change encapsulates UTXO set data within CChainState instances, removing global data `pcoinsTip` and `pcoinsviewdb`. This is necessary if we want to maintain multiple chainstates with their own rendering of the UTXO set.
We introduce a class CoinsViews which consolidates the construction of a CCoins* hierarchy.
This commit could be broken into smaller pieces, but it would require more ephemeral diffs to, e.g., temporarily change CCoinsViewDB's constructor invocations.
ACKs for top commit:
Sjors:
reACK 582d2cd747
MarcoFalke:
ACK 582d2cd747
Tree-SHA512: ec9d904fe5dca8cd2dc4b7916daa5d8bab30856dd4645987300f905e0a19f9919fce4f9d1ff03eda982943ca73e6e9a746be6cf53b46510de36e8c81a1eafba1
i.e. any CoinsViews members. Adds a lock acquisition to `gettxoutsetinfo` RPC
to comply with added annotations.
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
This change encapsulates UTXO set data within CChainState instances, removing
global data `pcoinsTip` and `pcoinsviewdb`. This is necessary if we want to
maintain multiple chainstates with their own rendering of the UTXO set.
We introduce a class CoinsViews which consolidates the construction of a
CCoins* hierarchy. Construction of its various pieces (db, coinscatcher,
in-memory cache) is split up so that we avoid flushing bad state to disk if
startup is interrupted.
We also introduce `CChainState::CanFlushToDisk()` which tells us when it is
safe to flush the chainstate based on this partial construction.
This commit could be broken into smaller pieces, but it would require more
ephemeral diffs to, e.g., temporarily change CCoinsViewDB's constructor
invocations.
Other changes:
- A parameter has been added to the CCoinsViewDB constructor that allows the
name of the corresponding leveldb directory to be specified.
Thanks to Russell Yanofsky and Marco Falke for helpful feedback.
-BEGIN VERIFY SCRIPT-
sed -i 's/inline std::string _(const char\* psz)/inline bilingual_str _(const char\* psz)/' src/util/translation.h
sed -i 's/return G_TRANSLATION_FUN ? (G_TRANSLATION_FUN)(psz) : psz;/return bilingual_str{psz, G_TRANSLATION_FUN ? (G_TRANSLATION_FUN)(psz) : psz};/' src/util/translation.h
sed -i 's/\b_("\([^"]\|\\"\)*")/&.translated/g' $(git grep --files-with-matches '\b_("' src)
echo Hard cases - multiline strings.
sed -i 's/"Visit %s for further information about the software.")/&.translated/g' src/init.cpp
sed -i "s/\"Only rebuild the block database if you are sure that your computer's date and time are correct\")/&.translated/g" src/init.cpp
sed -i 's/" restore from a backup.")/&.translated/g' src/wallet/db.cpp
sed -i 's/" or address book entries might be missing or incorrect.")/&.translated/g' src/wallet/wallet.cpp
echo Special case.
sed -i 's/_(COPYRIGHT_HOLDERS)/&.translated/' src/util/system.cpp test/lint/lint-format-strings.py
-END VERIFY SCRIPT-
4f050b91c7 move-onlyish: move CCoinsViewErrorCatcher out of init.cpp (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal
---
This change moves `CCoinsViewErrorCatcher` out of `init` and into `coins` so that it can later be included in [a `CoinsView` instance](91284964ef (diff-349fbb003d5ae550a2e8fa658e475880R504)) under `CChainState`.
Instead of hardcoding read failure behavior that has knowledge of qt, it accepts error callbacks via `AddReadErrCallback()`.
ACKs for top commit:
dongcarl:
re-ACK 4f050b91c7
ryanofsky:
utACK 4f050b91c7. Only change since last review is fixing const.
Tree-SHA512: eaba21606d15d2b8d0e3db7cec57779ce181af953db1ef4af80a0bc1dfb57923d0befde9d61b7be55c32224744f7fb6bd47d4e4c72f3ccfe6eaf0f4ae3765c17
and into coins.cpp. This move is necessary so that we can later include a
CCoinsViewErrorCatcher instance under CChainState.
Co-authored-by: MarcoFalke <falke.marco@gmail.com>
fa89badf88 test: Require standard txs in regtest (MarcoFalke)
fa9b419160 test: Add test that mainnet requires standard txs (MarcoFalke)
fa613ca0a8 chainparams: Remove unused fMineBlocksOnDemand (MarcoFalke)
Pull request description:
I don't see a reason why regtest should allow non-standard txs, as it makes testing mainnet behaviour such as #15846 unnecessarily hard and unintuitive.
Of course, testnet policy remains unchanged to allow propagation of non-standard txs.
ACKs for top commit:
ajtowns:
ACK fa89badf88
Tree-SHA512: c4c675affb054868850bd2683aa07f4c741a448cbacb2ea8334191e105f426b0790fe6a468be61e9c5880d24154f7bf1c7075051697172dce92180c1bc3a1c90
682a1d0f20 refactoring: remove mapBlockIndex global (James O'Beirne)
55d525ab90 refactoring: make pindexBestInvalid internal to validation.cpp (James O'Beirne)
4ed55dfcd7 refactoring: add block_index_candidates arg to LoadBlockIndex (James O'Beirne)
613c46fe9e refactoring: move block metadata structures into BlockManager (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal
---
Under an assumeutxo model, we have multiple CChainState instances in use at once in order to support background validation. Currently, each CChainState instance has its own mapBlockIndex, a collection of linked block headers, in addition to a few other data structures that are related to maintenance of the block tree but not necessarily to any given chainstate.
In order to avoid duplicating this data across chainstates, this change moves chainstate-agnostic block metadata (and related behavior) into a class, `BlockManager`. Chainstates are parameterized with a reference to a blockmanager instance and in practice they share the same instance.
Most of this change is conceptually move-only, though the diff is somewhat muddled. The first commit can be reviewed slightly more easily with `--color-moved=dimmed_zebra`. Admittedly, that commit is pretty unwieldy; I tried to split it up after the fact with `git add --patch`, but that was difficult because of git's inability to split hunks past a certain point. Some of the moves also ended up being obscured when done over separate commits.
ACKs for top commit:
MarcoFalke:
ACK 682a1d0f20
ryanofsky:
utACK 682a1d0f20, only changes since last review were rebase and fixing conflict on a moved line
ariard:
utACK 682a1d0. Most of the changes are move-only, with main problem being to avoid creating circular dependencies between `BlockManager` and `CChainState`. Tested, comments are mostly nits, feel free to ignore them
Tree-SHA512: 738d8d06539ba53acf4bd2d48ae000473e645bbc4e63d798d55d247a4d5a4f781b73538ed590f6407be9ab402ea9d395570ea20bff0a4b9ce747bcc1600c5108
fa64b947bb util: No translation of `Bitcoin Core` in the copyright (MarcoFalke)
fab85208f6 qt: Run «make translate» in ./src/ (MarcoFalke)
fabe87d2c9 scripted-diff: Avoid passing PACKAGE_NAME for translation (MarcoFalke)
fa5e9f157e build: Stop translating PACKAGE_NAME (MarcoFalke)
Pull request description:
Generally the package name is not translated, but the package description is.
E.g. `GIMP` or `Firefox` are always called that way regardless of the system language. However, "`Firefox` webbrowser" or "`GIMP` image manipulation program" are translated.
ACKs for top commit:
hebasto:
ACK fa64b947bb, I have not tested the code, but I have reviewed it and it looks OK, I agree it can be merged.
Tree-SHA512: 626f811531182d0ba0ef1044930d32726773349bcb49b10261288a86ee6b80a183db30a87d817d5b0d501fad058ac22d6272311716b4f5a154f17c6f391a5a1a
f874e14cd3 [build]: check std::system for -[alert|block|wallet]notify (Sjors Provoost)
cc3ad56ff2 [build] MSVC: set HAVE_SYSTEM for desktop apps (Sjors Provoost)
c1c91bb78d [build] detect std::system or ::wsystem (Sjors Provoost)
Pull request description:
Platforms such as iOs and Universal Windows Platform do not support launching a process through system().
ACKs for top commit:
laanwj:
code review ACK f874e14cd3
Tree-SHA512: 16bb4a8fa1896046ccb22a46c8985e1aa45f5b11ecf5539eb2299e9a58f1a5b085c0c12cb6939c7493d93abce7e84fadcbfc73374c887db63da6d00c08aa476d
faa2a47cd7 logging: Add threadsafety comments (MarcoFalke)
0b282f9b00 Log early messages with -printtoconsole (Anthony Towns)
412987430c Replace OpenDebugLog() with StartLogging() (Anthony Towns)
Pull request description:
Early log messages are dropped on the floor and they'd never make it to the console or debug log. This can be tested by running the test included in this pull request without re-compiling the `bitcoind`.
Fix that by buffering early messages and flushing them as soon as all logging options have been initialized and logging has been started.
This pull request is identical to "Log early messages with -printtoconsole" (#13088) by **ajtowns**, with the following changes:
* Rebased
* Added docstrings for `m_buffering` and `StartLogging`
* Switch `CCriticalSection` (aka `RecursiveMutex`) to just `Mutex` in the last commit
* Added tests
Fixes#16098Fixes#13157Closes#13088
ACKs for commit faa2a4:
ajtowns:
utACK faa2a47cd7
hebasto:
ACK faa2a47cd7
kristapsk:
ACK faa2a47cd7 (ran added functional test before / after recompiling, didn't do additional testing)
Tree-SHA512: 685e2882642fe2a43ce171d42862582dadb840d03cda8236a994322c389ca2a1f3f431b179b2726c155c61793543bb340c568a5455d97f8b83bc7d307a85d387
8053e5cdad Remove -mempoolreplacement to prevent needless block prop slowness. (Matt Corallo)
Pull request description:
At this point there is no reasonable excuse to disable opt-in RBF,
and, unlike when this option was added, there are now significant
issues created when disabling it (in the form of compact block
reconstruction failures). Further, it breaks a lot of modern wallet
behavior.
This removes an option that is:
* (a) only useful when a large portion of (other) miners enforce it as well
* (b) is detrimental to everyone (income for miners, RBF notifications for others) who uses it individually otherwise
* (c) is effectively unused
* (d) is often confused with disabling RBF (rather than just remaining stubbornly unaware of it while the rest of the network lets it through)
ACKs for commit 8053e5:
practicalswift:
utACK 8053e5cdad
promag:
Deprecation would save from unlikely rantings, still ACK 8053e5c.
jtimon:
utACK 8053e5cdad
ajtowns:
ACK 8053e5cdad -- quick code review, checked tests work
MarcoFalke:
ACK 8053e5cdad
Tree-SHA512: 01aee8905b2487fc38a3a86649d422d2d2345bc60f878889ebda4b8680783e1f1a97c2000c27ef086719501be2abc2911b2039a259a5e5c04f3b24ff02b0427e
At this point there is no reasonable excuse to disable opt-in RBF,
and, unlike when this option was added, there are now significant
issues created when disabling it (in the form of compact block
reconstruction failures). Further, it breaks a lot of modern wallet
behavior.
67f4e9c522 Include core_io.h from core_read.cpp (practicalswift)
eca9767673 Make reasoning about dependencies easier by not including unused dependencies (practicalswift)
Pull request description:
Make reasoning about dependencies easier by not including unused dependencies.
Please note that the removed headers are _not_ "transitively included" by other still included headers. Thus the removals are real.
As an added bonus this change means less work for the preprocessor/compiler. At least 51 393 lines of code no longer needs to be processed:
```
$ git diff -u HEAD~1 | grep -E '^\-#include ' | cut -f2 -d"<" | cut -f1 -d">" | \
sed 's%^%src/%g' | xargs cat | wc -l
51393
```
Note that 51 393 is the lower bound: the real number is likely much higher when taking into account transitively included headers :-)
ACKs for commit 67f4e9:
Tree-SHA512: 0c8868aac59813f099ce53d5307eed7962dd6f2ff3546768ef9e5c4508b87f8210f1a22c7e826c3c06bebbf28bdbfcf1628ed354c2d0fdb9a31a42cefb8fdf13
403e677c9 refactoring: IsInitialBlockDownload -> CChainState (James O'Beirne)
3ccbc376d refactoring: FlushStateToDisk -> CChainState (James O'Beirne)
4d6688603 refactoring: introduce ChainstateActive() (James O'Beirne)
d7c97edee move-only: make the CChainState interface public (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal
---
This changeset starts moving functionality intimately related to CChainState into methods. Parameterizing these functions by a particular CChainState is necessary for the use of multiple chainstates simultaneously (e.g. for asynchronous background validation).
In this change, we
- make the CChainState interface public - since other units will start to invoke its methods directly,
- introduce `::ChainstateActive()`, the CChainState equivalent for `::ChainActive()`,
- and move `IsInitialBlockDownload()` and `FlushStateToDisk()` into methods on CChainState.
Independent of assumeutxo, these changes better encapsulate chainstate behavior and allow easier use from a testing context.
There are more methods that we'll move in the future, but they require other substantial changes (i.e. moving ownership of the `CCoinsView*` hierarchy into CChainState) so we'll save them for future PRs.
---
The first move-only commit is most easily reviewed with `git diff ... --color-moved=dimmed_zebra`.
ACKs for commit 403e67:
Empact:
utACK 403e677c9e no need to address my nits herein
Sjors:
utACK 403e677
ryanofsky:
utACK 403e677c9e. Only change since previous review is removing global state comment as suggested.
MarcoFalke:
utACK 403e677c9e, though the diff still seems a bit bloated with some unnecessary changes in the second commit.
promag:
utACK 403e677 and rebased with current [master](c7cfd20a7).
Tree-SHA512: 6fcf260bb2dc201361170c0b4547405366f5f331fcc3a2bac29b24442814b7b244ca1b58aac5af716885f9a130c343b544590dff780da0bf835c7c5b3ccb2257
fa8ced32a6 doc: Mention blocksonly in reduce-traffic.md, unhide option (MarcoFalke)
fa320de79f test: Add test for p2p_blocksonly (MarcoFalke)
fa3872e7b4 test: Format predicate source as multiline on error (MarcoFalke)
fa1dce7329 net: Rename ::fRelayTxes to ::g_relay_txes (MarcoFalke)
Pull request description:
This is de-facto no longer hidden
ACKs for commit fa8ced:
jamesob:
utACK fa8ced32a6
Tree-SHA512: 474fbdee6cbd035ed9068a066b6056c1f909ec7520be0417820fcd1672ab3069b53f55c5147968978d9258fd3a3933fe1a9ef8e4f6e14fb6ebbd79701a0a1245
Also renames global methods for clarity:
- ::FlushStateToDisk() -> CChainState::ForceFlushStateToDisk()
- This performs an unconditional flush.
- ::PruneAndFlush() -> CChainState::PruneAndFlush()
ccc27bdcd2 doc: Clarify -blocksdir usage (Daniel McNally)
Pull request description:
This PR attempts to clarify and correct the `-blocksdir` argument description and default value. `-blocksdir` does not refer to the full path to the actual `blocks` directory, but rather the root/parent directory which contains the `blocks` directory. Accordingly, the default value is `<datadir>` and not `<datadir>/blocks` - this behavior of defaulting to the datadir can also be seen in init.cpp:
```cpp
if (gArgs.IsArgSet("-blocksdir")) {
path = fs::system_complete(gArgs.GetArg("-blocksdir", ""));
if (!fs::is_directory(path)) {
path = "";
return path;
}
} else {
path = GetDataDir(false);
}
```
It also attempts to clarify that only the `.dat` files containing block data are impacted by `-blocksdir`, not the index files.
I believe this would close#12828.
ACKs for commit ccc27b:
hebasto:
utACK ccc27bdcd2
Tree-SHA512: 7b65f66b0579fd56e8c8cd4f9f22d6af56181817762a68deccd7fca51820ad82d9a0c48f5f1f012e746c67bcdae7af4555fad867cb620a9ca538d465c9d86c2b
e0bb279999 Doc: remove text about txes always relayed from -whitelist (David A. Harding)
Pull request description:
Updates text since -whitelistforcerelay was set to false by default in PR #15193.
ACKs for commit e0bb27:
fanquake:
utACK e0bb279
MarcoFalke:
utACK e0bb279999
Tree-SHA512: cf0c9321d72692d573039a04f8f1d048cbdf67ed86cc781523dabd3c45d2731b788f53749e6bb29d7da1ab44eb04030f352469b20489bb2a26c2c38fb61f6489
Though at the moment ChainActive() simply references `g_chainstate.m_chain`,
doing this change now clears the way for multiple chainstate usage and allows
us to script the diff.
-BEGIN VERIFY SCRIPT-
git grep -l "chainActive" | grep -E '(h|cpp)$' | xargs sed -i '/chainActive =/b; /extern CChain& chainActive/b; s/\(::\)\{0,1\}chainActive/::ChainActive()/g'
-END VERIFY SCRIPT-
effe81f750 Move g_is_mempool_loaded into CTxMemPool::m_is_loaded (Ben Woosley)
bb8ae2c419 rpc: Expose g_is_mempool_loaded via getmempoolinfo and /rest/mempool/info.json (Ben Woosley)
Pull request description:
And use it to fix a race condition in mempool_persist.py:
https://travis-ci.org/Empact/bitcoin/jobs/487577243
Since e.g. getrawmempool returns errors based on this status, this
enables users to test it for readiness.
Fixes#12863
ACKs for commit effe81:
MarcoFalke:
utACK effe81f750
jnewbery:
utACK effe81f750
Tree-SHA512: 74328b0c17a97efb8a000d4ee49b9a673c2b6dde7ea30c43a6a2eff961a233351c9471f9a42344412135786c02bdf2ee1b2526651bb8fed68bd94d2120c4ef86
This work is prerequisite to attaching thread names to log lines and deadlock
debug utilities. This code allows setting of an "internal" threadname per
thread on platforms where thread_local is available.
This commit also moves RenameThread() out of a more general module and adds a
numeric suffix to disambiguate between threads with the same name. It
explicitly names a few main threads using the new util::ThreadRename().
5c759c73b2 [wallet] Move maxTxFee to wallet (John Newbery)
Pull request description:
Closes#15355
Moves the `-maxtxfee` from the node to the wallet. See discussion in issue for details.
This is a cleanup. There is no change in behaviour.
Completes #15620
ACKs for commit 5c759c:
MarcoFalke:
utACK 5c759c73b2
ryanofsky:
utACK 5c759c73b2. Changes since last review: updated commit message and an error message and method name.
meshcollider:
utACK 5c759c73b2
Tree-SHA512: 2f9b2729da3940a5cda994d3f3bc11ee1a52fcc1c5e9842ea0ea63e4eb0300e8416853046776311298bc449ba07554aa46f0f245ce28598a5b0bd7347c12e752
418d3230f8 Resolve the checkpoints <-> validation CD. (251)
Pull request description:
This pull request attempts to resolve the `checkpoints -> validation -> checkpoints` circular dependency.
The circular dependency is resolved by moving the `CheckPoints::GetLastCheckpoint(const CCheckpointData& data)` function to `validation.cpp` where it used exclusively by the private function `ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const CChainParams& params, const CBlockIndex* pindexPrev, int64_t nAdjustedTime)`.
ACKs for commit 418d32:
promag:
utACK 418d323, only `GetLastCheckpoint` usage is in `validation.cpp` and so makes sense to move it there.
practicalswift:
utACK 418d3230f8
MarcoFalke:
utACK 418d3230f8
sipa:
utACK 418d3230f8
Tree-SHA512: 03c3556bc192e65f5e3fa76fd545d4ee7d63d3fb06b132f7a1fa6131aa21ddd2e5b2d19e2222dfe524f422daaca30efde219bed188db8c74ff4b088876b5bc16
This commit moves the maxtxfee setting to the wallet. There is only
one minor behavior change:
- an error message in feebumper now refers to -maxtxfee instead of
maxTxFee.
c7efb652f3 blockfilter: Update BIP 158 test vectors. (Jim Posen)
19308c9e21 rpc: Add getblockfilter RPC method. (Jim Posen)
ff35105096 init: Add CLI option to enable block filter index. (Jim Posen)
accc8b8b18 index: Access functions for global block filter indexes. (Jim Posen)
2bc90e4e7b test: Unit test for block filter index reorg handling. (Jim Posen)
6bcf0998c0 test: Unit tests for block index filter. (Jim Posen)
b5e8200db7 index: Implement lookup methods on block filter index. (Jim Posen)
75a76e3619 index: Implement block filter index with write operations. (Jim Posen)
2ad2338ef9 serialize: Serialization support for big-endian 32-bit ints. (Jim Posen)
ba6ff9a6f7 blockfilter: Functions to translate filter types to/from names. (Jim Posen)
62b7a4f094 index: Ensure block locator is not stale after chain reorg. (Jim Posen)
4368384f1d index: Allow atomic commits of index state to be extended. (Jim Posen)
Pull request description:
This introduces a new BlockFilterIndex class, which is required for BIP 157 support.
The index is uses the asynchronous BaseIndex infrastructure driven by the ValidationInterface callbacks. Filters are stored sequentially in flat files and the disk location of each filter is indexed in LevelDB along with the filter hash and header. The index is designed to ensure persistence of filters reorganized out of the main chain to simplify the BIP 157 net implementation.
Stats (block height = 565500):
- Syncing the index from scratch takes 45m
- Total index size is 3.8 GiB
ACKs for commit c7efb6:
MarcoFalke:
utACK c7efb652f3
ryanofsky:
Slightly tested ACK c7efb652f3 (I just rebuilt the index with the updated PR and tested the RPC). Changes since last review: rebase, fixed compile errors in internal commits, new comments, updated error messages, tweaked cache size logic, renamed commit method, renamed constants and globals, fixed whitespace, extra BlockFilterIndex::Init error check.
Tree-SHA512: f8ed7a9b6f76df45933aa5eba92b27b3af83f6df2ccb3728a5c89eec80f654344dc14f055f6f63eb9b3a7649dd8af6553fe14969889e7e2fd2f8461574d18f28
4d074e84a2 [build] Move AnalyzePSBT from psbt.cpp to node/psbt.cpp (Russell Yanofsky)
fd509bd1f7 [docs] Document src subdirectories and different libraries (John Newbery)
9eaeb7fb8d [build] Move wallet load functions to wallet/load unit (John Newbery)
91a25d1e71 [build] Add several util units (John Newbery)
99517866b6 [build] Move several units into common libraries (John Newbery)
0509465542 [build] Move rpc rawtransaction util functions to rpc/rawtransaction_util.cpp (John Newbery)
1acc61f874 [build] Move rpc utility methods to rpc/util (John Newbery)
4a75c9d651 [build] Move policy settings to new src/policy/settings unit (John Newbery)
fdf8888b6f [build] Move CheckTransaction from lib_server to lib_consensus (John Newbery)
Pull request description:
This is a move-only commit. No code is changing and the moves can be easily verified with:
```sh
git log -p -n1 --color-moved=dimmed_zebra
```
This commit moves functions and variables that wallet code depends on out of libbitcoin_server.a, so the bitcoin-wallet tool can be built without libbitcoin_server.a in #15639, and attempting to access server state from wallet code will result in link errors instead of silently broken code.
List of moves:
- `CheckTransaction` moves from `consensus/tx_verify.cpp` to `consensus/tx_check.cpp`
- `urlDecode` moves from `httpserver.cpp` to `util/url.cpp`
- `TransactionErrorString` moves from `node/transaction.cpp` to `util/error.cpp`
- `StringForFeeReason` and `FeeModeFromString` move from `policy/fees.cpp` to `util/fees.cpp`
- `incrementalRelayFee` `dustRelayFee` and `nBytesPerSigOp` move from `policy/policy.cpp` to `policy/settings.cpp`
- `SignalsOptInRBF` moves from `policy/rbf.cpp` to `util/rbf.cpp`
- `fIsBareMultisigStd` moves from `validation.cpp` to `policy/settings.cpp`
- `ConstructTransaction` `TxInErrorToJSON` and `SignTransaction` move from `rpc/rawtransaction.cpp` to `rpc/rawtransaction_util.cpp`
- `RPCTypeCheck` `RPCTypeCheckArgument` `RPCTypeCheckObj` `AmountFromValue` `ParseHashV``ParseHashO` `ParseHexV` `ParseHexO` `HelpExampleCli` and `HelpExampleRpc` move from `rpc/server.cpp` to `rpc/util.cpp`
- `AmountHighWarn` and `AmountErrMsg` move from `ui_interface.cpp` to `util/error.cpp`
- `FormatStateMessage` and `strMessageMagic` move from `validation.cpp` to `util/validation.cpp`
- `VerifyWallets` `LoadWallets` `StartWallets` `FlushWallets` `StopWallets` and `UnloadWallets` move from `wallet/init.cpp` to `wallet/node.cpp`
ACKs for commit 4d074e:
jnewbery:
utACK 4d074e84a2 (checked by doing the rebase myself and verifying no difference between my branch and 4d074e84a2)
Tree-SHA512: 5e1604a9fb06475f2b96da0de0baa8330f4dda834dc20a0183ef11e1e4c27631d1d1bbb9abf0054efc03d56945fdf9920f63366b6a4f200f665b742a479ff75c
fae38c3dc6 doc: Fix all typos reported by codespell (MarcoFalke)
fa9058f0ed doc: Add release notes for 15629 (MarcoFalke)
fa4a922d78 qa: Add test for missing testnet section in conf file (MarcoFalke)
dddd6f0f58 init: Throw error when network specific config is ignored (MarcoFalke)
Pull request description:
This should have no effect on mainnet users, but simplifies testing, where config settings are currently ignored with only a warning. Fix this by making it an error.
Issues:
* bitcoin client 0.17.0 ignores wallet's name (file) #14523
* Can't set custom rpcport on testnet #13777
* ...
ACKs for commit fae38c:
Tree-SHA512: 2e209526898eea6e444c803ec2666989cee4ca137492d32984998733c50a70056cb54657df8dc3027a6a0612738a8afce0bc35824b868c5f22281e00e0188530
Adds the following util units and adds them to libbitcoin_util:
- `util/url.cpp` takes `urlDecode` from `httpserver.cpp`
- `util/error.cpp` takes `TransactionErrorString` from
`node/transaction.cpp` and `AmountHighWarn` and `AmountErrMsg` from
`ui_interface.cpp`
- `util/fees.cpp` takes `StringForFeeReason` and `FeeModeFromString` from `policy/fees.cpp`
- `util/rbf.cpp` takes `SignalsOptInRBF` from `policy/rbf.cpp`
- 'util/validation.cpp` takes `FormatStateMessage` and `strMessageMagic` from 'validation.cpp`
This moves the following policy settings functions and globals to a new
src/policy/settings unit in lib_server:
- `incrementalRelayFee`
- `dustRelayFee`
- `nBytesPerSigOp`
- `fIsBareMultisigStd`
These settings are only required by the node and should not be accessed
by other libraries.
This commit resolves the checkpoints -> validation -> checkpoints
cirular dependency by moving
`CheckPoints::GetLastCheckpoint(const CCheckpointData& data)` from
`checkpoints.cpp` to `validation.cpp`.
519b0bc5dc Make last disconnected block BLOCK_FAILED_VALID, even when aborted (Pieter Wuille)
8d220417cd Optimization: don't add txn back to mempool after 10 invalidates (Pieter Wuille)
9ce9c37004 Prevent callback overruns in InvalidateBlock and RewindBlockIndex (Pieter Wuille)
9bb32eb571 Release cs_main during InvalidateBlock iterations (Pieter Wuille)
9b1ff5c742 Call InvalidateBlock without cs_main held (Pieter Wuille)
241b2c74ac Make RewindBlockIndex interruptible (Pieter Wuille)
880ce7d46b Call RewindBlockIndex without cs_main held (Pieter Wuille)
436f7d735f Release cs_main during RewindBlockIndex operation (Pieter Wuille)
1d342875c2 Merge the disconnection and erasing loops in RewindBlockIndex (Pieter Wuille)
32b2696ab4 Move erasure of non-active blocks to a separate loop in RewindBlockIndex (Pieter Wuille)
9d6dcc52c6 Abstract EraseBlockData out of RewindBlockIndex (Pieter Wuille)
Pull request description:
This PR makes a number of improvements to the InvalidateBlock (`invalidateblock` RPC) and RewindBlockIndex functions, primarily around breaking up their long-term cs_main holding. In addition:
* They're made safely interruptible (`bitcoind` can be shutdown, and no progress in either will be lost, though if incomplete, `invalidateblock` won't continue after restart and will need to be called again)
* The validation queue is prevented from overflowing (meaning `invalidateblock` on a very old block will not drive bitcoind OOM) (see #14289).
* `invalidateblock` won't bother to move transactions back into the mempool after 10 blocks (optimization).
This is not an optimal solution, as we're relying on the scheduler call sites to make sure the scheduler doesn't overflow. Ideally, the scheduler would guarantee this directly, but that needs a few further changes (moving the signal emissions out of cs_main) to prevent deadlocks.
I have manually tested the `invalidateblock` changes (including interrupting, and running with -checkblockindex and -checkmempool), but haven't tried the rewinding (which is probably becoming increasingly unnecessary, as very few pre-0.13.1 nodes remain that would care to upgrade).
Tree-SHA512: 692e42758bd3d3efc2eb701984a8cb5db25fbeee32e7575df0183a00d0c2c30fdf72ce64c7625c32ad8c8bdc56313da72a7471658faeb0d39eefe39c4b8b8474
04cca33094 Style cleanup. (Jim Posen)
4c01e4e159 flatfile: Unit tests for FlatFileSeq methods. (Jim Posen)
65a489e93d scripted-diff: Rename CBlockDiskPos to FlatFilePos. (Jim Posen)
d6d8a78f26 Move CDiskBlockPos from chain to flatfile. (Jim Posen)
e0380933e3 validation: Refactor file flush logic into FlatFileSeq. (Jim Posen)
992404b31e validation: Refactor block file pre-allocation into FlatFileSeq. (Jim Posen)
e2d2abb99f validation: Refactor OpenDiskFile into method on FlatFileSeq. (Jim Posen)
9183d6ef65 validation: Extract basic block file logic into FlatFileSeq class. (Jim Posen)
62e7addb63 util: Move CheckDiskSpace to util. (Jim Posen)
Pull request description:
This cleans up and refactors block file helpers so that they may be used by the block filter indexer. Per [design discussion](https://github.com/bitcoin/bitcoin/pull/14121#issuecomment-451252591) about storing BIP 157 block filters, it has been suggested that they are stored in the same way as block and undo data. This refactor is sufficient to simplify file operations for this use case, though in the future perhaps more pruning-related logic ought to be moved into the new classes.
The basic abstraction is a `FlatFileSeq` which manages access to a sequence of numbered files into which raw data is written.
Tree-SHA512: b2108756777f2dad8964a1a2ef2764486e708a4a4a8cfac47b5de8bcb0625388964438eb096b10cfd9ea39212c299b5cb32fa943e768db2333cf49ea7def157e
1a7ba84e11 Fix lack of warning of unrecognized section names (Akio Nakamura)
Pull request description:
In #14708, It was introduced that to warn when unrecognized section names are exist in the config file.
But ```m_config_sections.clear()``` in ```ArgsManager::ReadConfigStream()``` is called every time when reading each configuration file, so it can warn about only last reading file if ```includeconf``` exists.
This PR fix lack of warning by collecting all section names by moving ```m_config_sections.clear()``` to ```ArgsManager::ReadConfigFiles()``` .
Also add a test code to confirm this situation.
Tree-SHA512: 26aa0cbe3e4ae2e58cbe73d4492ee5cf465fd4c3e5df2c8ca7e282b627df9e637267af1e3816386b1dc6db2398b31936925ce0e432219fec3a9b3398f01e3e65
3f5ad622e5 Enable PID file creation on Windows - Add available WIN PID function - Consider WIN32 in each relevant case - Add new preprocessor definitions to suppress warning - Update error message for generic OS (riordant)
Pull request description:
# Introduction
As discussed with @laanwj on IRC:
- PID file creation was never enabled for Windows, as the `pid_t` filetype is not available for it. However, the WIN32 API contains the header [`Processthreadsapi.h`](https://github.com/CodeShark/x86_64-w64-mingw32/blob/master/include/processthreadsapi.h) which in turn contains the function [`GetCurrentProcessId()`](https://docs.microsoft.com/en-gb/windows/desktop/api/processthreadsapi/nf-processthreadsapi-getcurrentprocessid). ~~This function is called at a higher level by [`_getpid()`](https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/getpid?view=vs-2017)~~ EDIT: `_getpid()` is not available to the MSVC compiler used in the AppVeyor build. As a result, I have changed the function call to`GetCurrentProcessId()`, which performs the same function and is available to both MinGW & MSVC.
This allows one to capture the PID in Windows, without any additional includes - the above function is already available.
- Within this PR, I have added a separate line that calls `GetCurrentProcessId()` in the case of a WIN compilation, and the usual `getpid()` otherwise. All code blocks processing PID file logic that avoid WIN32 have been changed to consider it. I have also updated the preprocessor definitions in `libbitcoin_server.vcxproj.in` to suppress a warning related to `std::strerror` for the MSVC build, that was causing the AppVeyor build to fail (see @fanquake comment below).
# Rationale
- Consistency between OS's running Bitcoin
- Applications which build off of `bitcoind`, such as novel front-end clients, often need access to the PID in order to control the daemon. Instead of designing some alternate way of doing this for one system, it should be consistent between all of them.
In collaboration with @joernroeder
Tree-SHA512: 22fcbf866e99115d12ed29716e68d200d4c118ae2f7b188b7705dc0cf5f0cd0ce5fb18f772744c6238eecd9e6d0922c615e2f0e12a7fe7c810062a79d97aa6a2
- Add available WIN PID function
- Consider WIN32 in each relevant case
- Add new preprocessor definitions to suppress warning
- Update error message for generic OS
Co-authored-by: Jörn Röder <kontakt@joernroeder.de>
7cb1a1401d Explain that unused mempool memory is added to -dbcache (Sjors Provoost)
Pull request description:
Since `-maxmempool` is 450 MB by default it's quite possible for a user to accidentally OOM a low
memory device if they increase `-dbcache` beyond the default.
<img width="563" alt="schermafbeelding 2018-09-06 om 17 02 40" src="https://user-images.githubusercontent.com/10217/45166219-c9c4f700-b1f6-11e8-9ee5-14b8b3a9830b.png">
Tree-SHA512: 44c7419d0b06c14aee5d2c02a41e5da488bcb40a5f65ba24554a45707b222f1e4b03d42486dfef9336d917ac2990eef2b1aec287a75b3ef1ccca0e88ac86a0c0
3782075a5f Move all PID file stuff to init.cpp (Hennadii Stepanov)
561e375c73 Make PID file creating errors fatal (Hennadii Stepanov)
745a2ace18 Improve PID file removing errors logging (Hennadii Stepanov)
Pull request description:
Digging into #15240 the lack of the proper logging has been discovered.
Fixed by this PR.
UPDATE (inspired by @laanwj's [comment](https://github.com/bitcoin/bitcoin/pull/15278#discussion_r252641810)):
Not being able to create the PID file is fatal now.
Output of `bitcoind`:
```
$ src/bitcoind -pid=/run/bitcoind/bitcoind.pid
2019-02-01T23:20:10Z Bitcoin Core version v0.17.99.0-561e375c7 (release build)
2019-02-01T23:20:10Z Assuming ancestors of block 0000000000000037a8cd3e06cd5edbfe9dd1dbcc5dacab279376ef7cfc2b4c75 have valid signatures.
2019-02-01T23:20:10Z Setting nMinimumChainWork=00000000000000000000000000000000000000000000007dbe94253893cbd463
2019-02-01T23:20:10Z Using the 'sse4(1way),sse41(4way),avx2(8way)' SHA256 implementation
2019-02-01T23:20:10Z Using RdRand as an additional entropy source
2019-02-01T23:20:11Z Error: Unable to create the PID file '/run/bitcoind/bitcoind.pid': No such file or directory
Error: Unable to create the PID file '/run/bitcoind/bitcoind.pid': No such file or directory
2019-02-01T23:20:11Z Shutdown: In progress...
2019-02-01T23:20:11Z Shutdown: Unable to remove PID file: File does not exist
2019-02-01T23:20:11Z Shutdown: done
```
Output of `bitcoin-qt`:
**Notes for reviewers**
1. `CreatePidFile()` has been moved from `util/system.cpp` to `init.cpp` for the following reasons:
- to get the ability to use `InitError()`
- now `init.cpp` contains code of both creating PID file and removing it
2. Regarding 0.18 release process: this PR modifies 1 string and introduces 2 new ones.
Tree-SHA512: ac07d0f800e61ec759e427d0afc0ca43d67f232e977662253963afdd0a220d34b871050f58149fc9fabd427bfc8e0d3f6a6032f2a38f30ad366fc0d074b0f2b3
1. Fix lack of warning by collecting all section names by moving
m_config_sections.clear() to ArgsManager::ReadConfigFiles().
2. Add info(file name, line number) to warning message.
3. Add a test code to confirm this situation.
3. Do clear() in ReadConfigString().
a99999cc04 util: Add SetupHelpOptions() (MarcoFalke)
Pull request description:
Every binary we have sets up the help option in their own way and wording.
Solve that by having one function take care of it for all of them.
Tree-SHA512: 6e947fa8bc2a46fa6ca9f45777020aa269a5df0dd916ebc863224f9a1e0f79e8e7754a1478567307edd9461e8babd77d26bc2710bbd56e8f8da9020aa85a8c9c
0164b0f5cf build: Remove WINVER pre define in Makefile.leveldb.inlcude (Chun Kuan Lee)
d0522ec94e Drop defunct Windows compat fixes (Ben Woosley)
d8a2992067 windows: Call SetProcessDEPPolicy directly (Chun Kuan Lee)
1bd9ffdd44 windows: Set _WIN32_WINNT to 0x0601 (Windows 7) (Chun Kuan Lee)
Pull request description:
The current minimum support Windows version is Vista. So set it to 0x0600
5a88def8ad/mingw-w64-headers/include/sdkddkver.h (L19)
Tree-SHA512: 38e2afc79426ae547131c8ad3db2e0a7f54a95512f341cfa0c06e4b2fe79521ae67d2795ef96b0192e683e4f1ba6183c010d7b4b8d6b3e68b9bf48c374c59e7d
77777c5624 log: Construct global logger on first use (MarcoFalke)
Pull request description:
The (de)initialization order is not well defined in C++, so generally it is not safe to use globals as the (de/con)structor of one global could use the (de/con)structor of another global before/after it has been (con/de)structed.
Specifically this fixes:
* `g_logger` might not be initialized on the first use, so do that. (Fixes#15111)
Tree-SHA512: eb9c22f4baf31ebc5b0b9ee6a51d1354bae1f0df186cc0ce818b4483c7b5a7f90268d2b549ee96b4c57f8ef36ab239dc6497f74f3e2ef166038f7437c368297d
6f6514a080 Correct units for "-dbcache" and "-prune" (Hennadii Stepanov)
Pull request description:
Actually, all `dbcache`-related values in the code are measured in MiB (not in megabytes, MB) or in bytes (e.g., `nTotalCache`).
See: https://github.com/bitcoin/bitcoin/blob/master/src/txdb.hba8c8b2227/src/init.cpp (L1405-L1424)
Also, "-prune" is fixed:
1. The GUI values in GB are translated to the node values in MiB correctly.
2. The maximum of the "prune" `QSpinBox` is not limited by default value of 99 (GB).
Fix: #15106
Tree-SHA512: 151ec43b31b1074db8b345fedb1dcc10bde225899a5296bfc183f57e1553d13ac27db8db100226646769ad03c9fcab29d88763065a471757c6c41ac51108459d
All dbcache-related values in the code are measured in MiB (not in
megabytes, MB) or in bytes.
The GUI "-prune" values in GB are translated to the node values in MiB
correctly. The maximum of the "-prune" QSpinBox is not limited by the
default value of 99 (GB).
Also, this improves log readability.
This commit attempts to clarify and correct the `-blocksdir` argument
description and default value. `-blocksdir` does not refer to the full
path to the actual `blocks` directory, but rather the root/parent
directory which contains the `blocks` directory. Accordingly, the
default value is `<datadir>` and not `<datadir>/blocks`. It also
attempts to clarify that only the `.dat` files containing block data are
impacted by `-blocksdir`, not the index files.
e4a0c3547e Improve blocksdir functional test. (Hennadii Stepanov)
c3f1821ac7 Make blockdir always net specific (Hennadii Stepanov)
Pull request description:
The blocks directory is net specific by definition.
Also this prevents the side effect of calling `GetBlocksDir(false)` in the non-mainnet environment.
Currently a new node creates an unused `blocks\` directory in the root of the data directory when `-testnet` or `-regtest` is specified.
Refs:
- #12653
- https://github.com/bitcoin/bitcoin/pull/12653#discussion_r174784834 by @laanwj
- https://github.com/bitcoin/bitcoin/issues/14595#issuecomment-436011186
Tree-SHA512: c9957a68a4a200ebd2010823a56db7e61563afedcb7c9828e86b13f3af2990e07854b622c1f3374756f94574acb3ea32de7d2a399eef6c0623f0e11265155627
645e905c32 doc: Add release notes for unloadwallet change to synchronous call (João Barbosa)
c37851de57 rpc: Make unloadwallet wait for complete wallet unload (João Barbosa)
Pull request description:
Currently the `unloadwallet` RPC is asynchronous, it only signals the intent to unload the wallet and then returns the response to the client. The actual unload can happen later and the client has no way to be notified of that.
This PR makes the `unloadwallet` RPC synchronous, meaning that it blocks until the wallet is fully unloaded.
Replaces #14919, fixes#14917.
Tree-SHA512: ad88b980e2f3652809a58f904afbfe020299f3aa6a517f495ba943b8d54d4520f6e70074d6749be8f5967065c0f476e0faedcde64c8b4899e5f99c70f0fd6534
4927bf2f25 Increase maxconnections limit when using poll. (Patrick Strateman)
11cc491a28 Implement poll() on systems which support it properly. (Patrick Strateman)
28211a4bc9 Move SocketEvents logic to private method. (Patrick Strateman)
7e403c0ae7 Move GenerateSelectSet logic to private method. (Patrick Strateman)
1e6afd0dbc Introduce and use constant SELECT_TIMEOUT_MILLISECONDS. (Patrick Strateman)
Pull request description:
Implement poll() on systems which support it properly.
This eliminates the restriction on maximum socket descriptor number.
Tree-SHA512: b945cd9294afdafcce96d547f67679d5cdd684cf257904a239cd1248de3b5e093b8d6d28d8d1b7cc923dc0b2b5723faef9bc9bf118a9ce1bdcf357c2323f5573
cb53b825c2 scripted-diff: Replace boost::bind with std::bind (Chun Kuan Lee)
2196c51821 refactor: Use boost::scoped_connection in signal/slot, also prefer range-based loop instead of std::transform (Chun Kuan Lee)
Pull request description:
Replace boost::bind with std::bind
- In `src/rpc/server.cpp`, replace `std::transform` with simple loop.
- In `src/validation.cpp`, store the `boost::signals2::connection` object and use it to disconnect.
- In `src/validationinterface.cpp`, use 2 map to store the `boost::signals2::scoped_connection` object.
Tree-SHA512: 6653cbe00036fecfc495340618efcba6d7be0227c752b37b81a27184433330f817e8de9257774e9b35828026cb55f11ee7f17d6c388aebe22c4a3df13b5092f0
dcb70b1522 Indicate -rpcauth option password hashing alg (Carl Dong)
Pull request description:
By indicating the password hashing algorithm, users of bitcoin distributions without the script in `share/rpcauth` and users who don't want to rely on said script can use alternative means to generate the password hash.
Question for reviewers: perhaps we should also indicate that it is specifically a HMAC-SHA-256 of the _**UTF-8**_ encoding of their password?
Tree-SHA512: 86b546c2e78699fa253da0c1e76b21ef60e9b6a5778826ac5136e764d70e3213044cc05cdb4786ba27968781647c46e358a823bbc2db7d45d041d291ee03b83c
48b37db50 make peertimeout a debug argument, remove error message translation (Zain Iqbal Allarakhia)
8042bbfbf p2p: allow p2ptimeout to be configurable, speed up slow test (Zain Iqbal Allarakhia)
Pull request description:
**Summary:**
1. _Primary_: Adds a `debug_only=true` flag for peertimeout, defaults to 60 sec., the current hard-coded setting.
2. _Secondary_: Drastically speeds up `p2p_timeout.py` test.
3. _Secondary_: Tests that the correct code path is being tested by adding log assertions to the test.
**Rationale:**
- P2P timeout was hard-coded: make it explicitly specified and configurable, instead of a magic number.
- Addresses #13518; `p2p_timeout.py` takes 4 sec. to run instead of 61 sec.
- Makes `p2p_timeout.py` more explicit. Previously, we relied on a comment to inform us of the timeout amount being tested. Now it is specified directly in the test via passing in the new arg; `-peertimeout=3`.
- Opens us up to testing more P2P scenarios; oftentimes slow tests are the reason we don't test.
**Locally verified changes:**
_With Proposed Change (4.7 sec.):_
```
$ time ./test/functional/p2p_timeouts.py
2018-11-19T00:04:19.077000Z TestFramework (INFO): Initializing test directory /tmp/testhja7g2n7
2018-11-19T00:04:23.479000Z TestFramework (INFO): Stopping nodes
2018-11-19T00:04:23.683000Z TestFramework (INFO): Cleaning up /tmp/testhja7g2n7 on exit
2018-11-19T00:04:23.683000Z TestFramework (INFO): Tests successful
real 0m4.743s
```
_Currently on master (62.8 sec.):_
```
$ time ./test/functional/p2p_timeouts.py
2018-11-19T00:06:10.948000Z TestFramework (INFO): Initializing test directory /tmp/test6mo6k21h
2018-11-19T00:07:13.376000Z TestFramework (INFO): Stopping nodes
2018-11-19T00:07:13.631000Z TestFramework (INFO): Cleaning up /tmp/test6mo6k21h on exit
2018-11-19T00:07:13.631000Z TestFramework (INFO): Tests successful
real 1m2.836s
```
_Error message demonstrated for new argument `-peertimeout`:_
```
$ ./bitcoind -peertimeout=-5
...
Error: peertimeout cannot be configured with a negative value.
```
Tree-SHA512: ff7a244ebea54c4059407bf4fb86465714e6a79cef5d2bcaa22cfe831a81761aaf597ba4d5172fc2ec12266f54712216fc41b5d24849e5d9dab39ba6f09e3a2a
In the config file, sections are specified by square bracket pair "[]"$,
or included in the option name itself which separated by a period"(.)".
Typicaly, [testnet] is not a correct section name and specified options
in that section are ignored but user cannot recognize what is happen.
So, add some log/stderr-warning messages if unrecognized section names
are present in the config file after checking section only args.
Route calls during node initialization and shutdown that would happen between a
node process and wallet processes through the serializable `Chain::Client`
interface, rather than `WalletInitInterface` which is now simpler and only
deals with early initialization and parameter interaction.
This commit mostly does not change behavior. The only change is that the
"Wallet disabled!" and "No wallet support compiled in!" messages are now logged
earlier during startup.
This commit does not change behavior. All it does is pass new function
parameters.
It is easiest to review this change with:
git log -p -n1 -U0 --word-diff-regex=.
a4edb168b6 ZMQ: add options to configure outbound message high water mark, aka SNDHWM (mruddy)
Pull request description:
ZMQ: add options to configure outbound message high water mark, aka SNDHWM
This is my attempt at https://github.com/bitcoin/bitcoin/pull/13315
Tree-SHA512: a4cc3bcf179776899261a97c8c4f31f35d1d8950fd71a09a79c5c064879b38e600b26824c89c4091d941502ed5b0255390882f7d44baf9e6dc49d685a86e8edb
7ac911afe7 [docs] Add release notes for removing `-usehd` (John Newbery)
25548b2958 [wallet] Remove -usehd (John Newbery)
Pull request description:
`-usehd` is no longer used (except to tell the user that they've set it incorrectly for the wallet that they're loading). Remove it (in the same spirit as #14272)
Tree-SHA512: 5bdcd2bb9bb8504a01343595bcd1bd433d97b730255152c725103c1ac3fa3a9d9e5220a4c29d4c72307cf803e1c09d31080f83603c23dc77263846e17b1826f0
3ccfa34b32 convert C-style (void) parameter lists to C++ style () (Arvid Norberg)
Pull request description:
In C, an empty parameter list, `()`, means the function takes any arguments, and `(void)` means the function does not take any parameters.
In C++, an empty parameter list means the function does not take any parameters.
So, C++ still supports `(void)` parameter lists with the same semantics, why change to `()`?
1. removing the redundant `void` improves signal-to-noise ratio of the code
2. using `(void)` exposes a rare inconsistency in that a template taking a template `(T)` parameter list, cannot be instantiated with `T=void`
Tree-SHA512: be2897b6c5e474873aa878ed6bac098382cd21866aec33752fe40b089a6331aa6263cae749aba1b4a41e8467f1a47086d32eb74abaf09927fd5a2f44a4b2109a
8e1c13e6da doc: Document -checklevel levels (Wladimir J. van der Laan)
Pull request description:
Document the various possible check levels for the command-line argument. The numbers say nothing on their own.
Tree-SHA512: 8a526c53222b55304dde1d9350dd15a50f1dd62bf452a32dc886a4521e3ab49d5f0a86a4c5cbb0d52fb76b60222101045100f93fee5e1a5d5e3ab8e79b64cbe0
I don't understand why `-help-debug` would be useful without requesting
the help, and I've made this particular mistake one time too many.
(ok, so apparently the original reason that -help-debug is an option is
to show debug options in the GUI option overview? that seems very
unlikely to ever be used, if someone wants to add a way to show debug
options in the GUI it'd be better to have a check box)
7d038dcb41 [build] remove ENABLE_WALLET ifdef from httprpc.cpp (John Newbery)
3076556cd0 [build] Move dummy wallet into its own .cpp file. (John Newbery)
Pull request description:
This removes the final instances of ENABLE_WALLET in libbitcoin_server and so completes #7965.
Tree-SHA512: a49128b7c17f4f69940d5843e6b785f08687efb377b5157d5b267d1205e596eb5c1966f1afb8ab36bcc2491c46252099e3e844c91f5623da8ded2e358d46338d
946107a68f Only log "Using PATH_TO_bitcoin.conf" message on startup if conf file exists. (Alexander Leishman)
Pull request description:
Currently we log a message indicating that a bitcoin.conf file is being used even if one does not exist. This PR changes the logic to:
**If config file does not exist and no -conf flag passed, log:**
`Config file: FILE_PATH (not found, skipping)`. Where `FILE_PATH` is the default or the path passed in with the `-conf` flag.
**If config file does not exist and -conf flag passed with incorrect path, log warning:**
`Warning: The specified config file FILE_PATH does not exist`
**If config file exists, log**:
`Config file: FILE_PATH`
Note: This is a (modified) subset of changes introduced in https://github.com/bitcoin/bitcoin/pull/13761 which creates a default example config file. I think it makes sense to extract this small bit out into a separate PR.
Tree-SHA512: be0f0ae6a0c9041e2d6acb54d2563bbcc79786fb2f8bf9a963fe01bc54cd4e388b89079fde1eb79f7f17099776428e5e984bf7107590a3d1ecfc0562dbc6e3f5
65a449f8e3 Explain when reindex-chainstate can be used instead of reindex (Sjors Provoost)
Pull request description:
Save users from having to Google this: https://bitcoin.stackexchange.com/a/60711
Tree-SHA512: 3128565d037c77265a2ecf3bce137b8d27740f513802a4e683be06f21a75b82ee6cc22eb903181c4f438a2990cb682ce1d076f4d3af33d5aaa79b783a9f664b1
PR #12713 changed the interpretation for negation of non-boolean options
(e.g. -noconnect) to no longer set the option to 0, but to remove it
from the options.
I think this is better because it gets rid of the special meaning of
'0'.
However it needs to be documented. I attempt to do so in this PR.
Addreses #14064.
e8c4a1e369 Add new regtest ports in doc following #10825 ports reattributions (Antoine Riard)
Pull request description:
Following #10825, regtest ports for p2p connections and JSON-RPC connections have been remapped from 18333 and 18332 to 18444 and 18443. This change is not documented in the wiki or nowhere else and it's puzzling to guess why your regtest JSON-rpc connections all failed even if you're following the docs.
Tree-SHA512: e2a1b9b4059060d9ed0900c1554e124ed69ae3e4648474880795128e77c7324d68aba52e4acda2f47390a9c3d36629b777e3b8c0eb10f0e08a2b120c4119dff3
Call sync.h primitives "locks" and "mutexes" instead of "blocks" and "waitable
critical sections" to match current coding conventions and c++11 standard
names.
This PR does not rename the "CCriticalSection" class (though this could be done
as a followup) because it is used everywhere and would swamp the other changes
in this PR. Plain mutexes should mostly be preferred instead of recursive
mutexes in new code anyway.
-BEGIN VERIFY SCRIPT-
set -x
set -e
ren() { git grep -l $1 | xargs sed -i s/$1/$2/; }
ren CCriticalBlock UniqueLock
ren CWaitableCriticalSection Mutex
ren CConditionVariable std::condition_variable
ren cs_GenesisWait g_genesis_wait_mutex
ren condvar_GenesisWait g_genesis_wait_cv
perl -0777 -pi -e 's/.*typedef.*condition_variable.*\n\n?//g' src/sync.h
-END VERIFY SCRIPT-
9c4dc597dd Use LOCK macros for non-recursive locks (Russell Yanofsky)
1382913e61 Make LOCK, LOCK2, TRY_LOCK work with CWaitableCriticalSection (Russell Yanofsky)
ba1f095aad MOVEONLY Move AnnotatedMixin declaration (Russell Yanofsky)
41b88e9337 Add unit test for DEBUG_LOCKORDER code (Russell Yanofsky)
Pull request description:
Make LOCK macros work with non-recursive mutexes, and use wherever possible for better deadlock detection.
Also add unit test for DEBUG_LOCKORDER code.
Tree-SHA512: 64ef209307f28ecd0813a283f15c6406138c6ffe7f6cbbd084161044db60e2c099a7d0d2edcd1c5e7770a115e9b931b486e86c9a777bdc96d2e8a9f4dc192942
Currently we log a message indicating that a bitcoin.conf file is being used
even if one does not exists. This commit changes the logic to only display
this message if a config file exists and logs a separate message
if no config file exists. Additionally, a warning is now logged if the file
path passed in the -conf flag does not exist.
boost::interprocess::file_lock cannot open the files that contain characters which cannot be parsed by the user's code page on Windows.
This commit add a new class to handle those specific file for Windows.
fa5ce27385 ui: Compile boost:signals2 only once (MarcoFalke)
Pull request description:
ui is one of the modules that poison other modules with `boost/signals2` headers. This moves the include to the cpp file and uses a forward declaration in the header.
Locally this speeds up the incremental build (building everything that uses the ui module) with gcc by ~5% for me. Gcc uses ~5% less memory.
Would be nice if someone could verify the numbers roughly.
I presume the improvements will be more pronounced if the other models would stop exposing the boost header as well.
Tree-SHA512: 078360eba330ddbca4268bd8552927eae242a239e18dfded25ec20be72650a68cd83af7ac160690249b943d33ae35d15df1313f1f60a0c28b9526853aa7d1e40
Commit 3fdb29778a renamed share/rpcuser to share/rpcauth but left references to the old path in code; this commit fixes the old references.
Performed update using https://github.com/facebook/codemod with command: `codemod --extensions cpp,py,md 'share/rpcuser' 'share/rpcauth'`
-BEGIN VERIFY SCRIPT-
git grep --files-with-matches 'share/rpcuser' src/*.cpp | xargs sed -i -E 's:share/rpcuser:share/rpcauth:g'
git grep --files-with-matches 'share/rpcuser' test/functional/*.py | xargs sed -i -E 's:share/rpcuser:share/rpcauth:g'
-END VERIFY SCRIPT-
3339ba28e9 Make g_enable_bip61 a member variable of PeerLogicValidation (Jesse Cohen)
6690a28606 Restrict as much as possible in net_processing to translation unit (Jesse Cohen)
1d4df02b7e [move-only] Move things only referenced in net_processing out of header file (Jesse Cohen)
02bbc05310 Rescope g_enable_bip61 to net_processing (Jesse Cohen)
Pull request description:
As part of a larger effort to decouple net_processing and validation a bit, these are a bunch of simple scope cleanups. I've moved things out of the header file that are only referenced in net_processing and added static (or anonymous namespace) modifiers to everything possible in net_processing.
There are a handful of functions which could be static except that they are exposed for the sake of unit testing - these are explicitly commented. There has been some discussion of a compile time annotation, but no conclusion has been reached on that yet.
This is somewhat related to other prs #12934#13413#13407 and will be followed by prs that reduce reliance on cs_main to synchronize data structures which are translation unit local to net_processing
Tree-SHA512: 46c9660ee4e06653feb42ba92189565b0aea17aac2375c20747c0d091054c63829cbf66d2daddf65682b58ce1d6922e23aefea051a7f2c8abbb6db253a609082
161e8d40a4 RPC: Add new getzmqnotifications method. (Daniel Kraft)
caac39b0ac Make ZMQ notification interface instance global. (Daniel Kraft)
Pull request description:
This adds a new RPC method `getzmqnotifications`, which returns information about all active ZMQ notification endpoints. This is useful for software that layers on top of bitcoind, so it can verify that ZeroMQ is enabled and also figure out where it should listen.
See #13526.
Tree-SHA512: edce722925741c84ddbf7b3a879fc9db1907e5269d0d97138fe724035d93ee541c2118c24fa92f4197403f380d0e25c2fda5ca6c62d526792ea749cf527a99a0
#13004 changed the default behavior for printtoconsole but this has not been reflected in the command line help.
This fixes the description of -printtoconsole to reflect this change, and also provides the user with missing information on how to explicitly disable logging to debug.log.
At present I have made the latter update to two separate places (-printtoconsole and -debuglogfile) because a user looking for information on how to disable logging is probably going to look in the "Debugging/Testing Options" section. Moving -debuglogfile from the "General" options category to the "Debugging/Testing" section could potentially remove the need for this redundancy but may be out of the scope of this PR.
2dcd7b4ec logging: avoid nStart may be used uninitialized in AppInitMain warning (mruddy)
Pull request description:
Was getting the following compiler warning:
```
init.cpp: In function ‘bool AppInitMain()’:
init.cpp:1616:60: warning: ‘nStart’ may be used uninitialized in this function [-Wmaybe-uninitialized]
LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart);
```
It's ok without this PR, but this PR renames `nStart` to `load_block_index_start_time`, makes it `const`, and also reduces the scope of the variable.
The logging line is moved such that the the time spent will be logged even if a shutdown is requested while the index is being loaded.
Having the log message output even when a shutdown is requested may be how this was intended to work before anyways. That could explain the leading space, as such a log message now looks like:
```
2018-06-30T11:34:05Z [0%]...[16%]...[33%]...[50%]... block index 25750ms
2018-06-30T11:34:17Z Shutdown requested. Exiting.
```
Tree-SHA512: 967048afbc31f2ce8f80ae7d33fee0bdcbe94550cf2b5b662087e2a7cff14a8bf43d909b30f930660c184ec6c3c7e1302a84e3e54fc1723f7412827f4bf2c518
This adds a new RPC method "getzmqnotifications", which returns
information about all active ZMQ notification endpoints. This is useful
for software that layers on top of bitcoind, so it can verify that
ZeroMQ is enabled and also figure out where it should listen.
See https://github.com/bitcoin/bitcoin/issues/13526.
b330c3001 Docs: Improve doc of options addnode, connect, seednode (wodry)
Pull request description:
Just clarify that options `addnode`, `connect` and `seednode` can be specified multiple times.
Tree-SHA512: ed149cabe7fc1d40f2fb6ad8b643656e0ec49cfae1834c157c89170eac1241efa3c5683d97266ff921f5229f28d732c9f7ee030e7902d9a79db1e0c8716fa3db
1fabd59e7 Break circular dependency: init -> * -> init by extracting shutdown.h (Ben Woosley)
e62fdfeea Drop unused init.h includes (Ben Woosley)
Pull request description:
Most includers just wanted to react to pending shutdown.
This isolates access to `fRequestShutdown` and limits access to the shutdown api functions, including the new `CancelShutdown` for setting it to `false`.
Tree-SHA512: df42f75dfbba163576710e9a67cf1228531fd99d70a2f187bfba0bcc476d6749cf88180a97e66a81bb5b6c3c7f0917de7402d26039ba7b644cb7509b02f7e267
-BEGIN VERIFY SCRIPT-
sed --in-place'' --expression='s/NET_TOR/NET_ONION/g' $(git grep -I --files-with-matches 'NET_TOR')
-END VERIFY SCRIPT-
The --in-place'' hack is required for sed on macOS to edit files in-place without passing a backup extension.
This moves the used instance of CZMQNotificationInterface from a static
variable in init.cpp to a globally-accessible one declared in
zmq/zmqnotificationinterface.h. The variable is also renamed to
g_zmq_notification_interface, to be consistent with other globals.
We need this to implement a new RPC method "getzmqnotifications" (see
https://github.com/bitcoin/bitcoin/issues/13526) in a follow up.
Most includers just wanted to react to pending shutdown.
This isolates access to `fRequestShutdown` and limits access to the shutdown
api functions, including the new `AbortShutdown` for setting it to `false`.
Note I originally called `AbortShutdown` `CancelShutdown` but that name was
already taken by winuser.h
https://travis-ci.org/bitcoin/bitcoin/jobs/386913329
This change also triggered a build error in bench. Fixing it required moving LIBBITCOIN_SERVER after LIBBITCOIN_WALLET in bench_bench_bitcoin_LDADD To make
server definitions in src/net.cpp available to wallet methods in
src/wallet/wallet.cpp. Specifically, solving:
libbitcoin_wallet.a(libbitcoin_wallet_a-wallet.o): In function `CWalletTx::RelayWalletTransaction(CConnman*)':
wallet.cpp:(.text+0x3f0e): undefined reference to `CConnman::NodeFullyConnected(CNode const*)'
collect2: error: ld returned 1 exit status
https://travis-ci.org/bitcoin/bitcoin/jobs/392133581
Need for remaining init.h includes confirmed via a thorough search with a more
specific regex:
\bInterrupt\(\)|\bShutdown\(\)|\bInitLogging\(\)|\bInitParameterInteraction\(\)|\bAppInitBasicSetup\(\)|\bAppInitParameterInteraction\(\)|\bAppInitSanityChecks\(\)|\bAppInitLockDataDirectory\(\)|\bAppInitMain\(\)|\bSetupServerArgs\(\)|\bLicenseInfo\(\)|g_wallet_init_interface|init.h
9b72c988a0 scripted-diff: Avoid temporary copies when looping over std::map (Ben Woosley)
Pull request description:
The ::value_type of the std::map/std::multimap/std::unordered_map containers is
std::pair<const Key, T>. Dropping the const results in an unnecessary copy,
for example in C++11 range-based loops.
For this I started with a more general scripted diff, then narrowed it down
based on the inspection showing that all actual map/multimap/unordered_map
variables used in loops start with m or have map in the name.
Tree-SHA512: b656d66b69ffa1eb954124aa8ae2bc5436ca50262abefa93bdda55cfcdaffc5ff90cd40539051a2bd06355ba69ddf245265cc8764eebff66d761b3aec06155a9
Options that are not available (but known in the source code) will
cause an error if they are specified.
Make these options "available" by adding them to the hidden options
category to prevent conf files from failing when shared between binaries
that have different options available.
The ::value_type of the std::map/std::multimap/std::unordered_map containers is
std::pair<const Key, T>. Dropping the const results in an unnecessary copy,
for example in C++11 range-based loops.
For this I started with a more general scripted diff, then narrowed it down
based on the inspection showing that all actual map/multimap/unordered_map
variables used in loops start with m or have map in the name.
-BEGIN VERIFY SCRIPT-
sed -i -E 's/for \(([^<]*)std::pair<([^c])(.+) : m/for (\1std::pair<const \2\3 : m/' src/*.cpp src/**/*.cpp
sed -i -E 's/for \(([^<]*)std::pair<([^c])(.+) : (.*)map/for (\1std::pair<const \2\3 : \4map/' src/*.cpp src/**/*.cpp
-END VERIFY SCRIPT-
If an unknown option is given via either the command line args or
the conf file, throw an error and exit
Update tests for ArgsManager knowing args
Ignore unknown options in the config file for bitcoin-cli
Fix tests and bitcoin-cli to match actual options used
Many options are extremely technical, and refer internals, making it
difficult to translate usefully. This came up in discussion of e.g.
#10949. If a message is not understood by translators (which are
typically end-users, not developers) they'll either translate it
literally, making it harder to understand instead of easier, with the
added drawback of the user no longer being able to google it.
Also the translation was only working for bitcoin-qt as with
the console programs, there is no translation backend. So it was
injecting never-used translation messages for bitcoin-cli, -tx.
For these reasons, stop translating options help completely. This should
not affect the output **in any way** except for bitcoin-qt when a
non-English language is configured in the locale.
This implements #10962.
This commit adds a boolean option `-enablebip61`, defaulting to `1`, that
can be used to disable the sending of BIP61 `reject` messages. This
functionality has been requested for various reasons:
- security (DoS): reject messages can reveal internal state that can be
used to target certain resources such as the mempool more easily.
- bandwidth: a typical node sends lots of reject messages; this counts
against upstream bandwidth. Also the reject messages tend to be larger
than the message that was rejected.
On the other hand, reject messages can be useful while developing client
software (I found them indispensable while creating bitcoin-submittx),
as well as for our own test cases, so whatever the default becomes on the
long run, IMO the functionality should be retained as option. But that's
a discussion for later.
25b7ab9 doc: Add release notes for -includeconf (Karl-Johan Alm)
0f0badd test: Test includeconf parameter. (Karl-Johan Alm)
629ff8c -includeconf=<path> support in config handler, for including external configuration files (Karl-Johan Alm)
Pull request description:
Fixes: #10071.
Done:
- adds `-includeconf=<path>`, where `<path>` is relative to `datadir` or to the path of the file being read, if in a file
- protects against circular includes
- updates help docs
~~~Thoughts:~~~
- ~~~I am not sure how to test this in a neat manner. Feedback on this would be nice. Will dig/think though.~~~
Tree-SHA512: cb31f1b2f69fbc0890d264948eb2e501ac05cf12f5e06a5942f9c1539eb15ea8dc3cae817f4073aecb2fcc21d0386747f14f89d990772003a76e2a6d25642553
ddebde7 Add Windows shutdown handler (Chun Kuan Lee)
Pull request description:
Exit properly when clicked the red X of Windows Console
Tree-SHA512: f030edd08868390662b42abfa1dc6bd702166c6c19f5b1f8e7482e202451e79fb6f37ea672c26c2eb0d32c367bfca86160fbee624696c53828f280b7070be6a0
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.
6a3b0d3 Print to console by default when not run with -daemon (Evan Klitzke)
Pull request description:
Cherry-picked ef6fa1c38e from the "up for grabs" PR: "Smarter default behavior for -printtoconsole" (#12689).
See previous review in #12689.
Tree-SHA512: 8923a89b9c8973286d53e960d3c464b1cd026cd5a5911ba62f9f972c83684417dc4004101815dfe987fc1e1baaec1fdd90748a0866bb5548e974d77b3135d43b
c25321f Add config changes to release notes (Anthony Towns)
5e3cbe0 [tests] Unit tests for -testnet/-regtest in [test]/[regtest] sections (Anthony Towns)
005ad26 ArgsManager: special handling for -regtest and -testnet (Anthony Towns)
608415d [tests] Unit tests for network-specific config entries (Anthony Towns)
68797e2 ArgsManager: Warn when ignoring network-specific config setting (Anthony Towns)
d1fc4d9 ArgsManager: limit some options to only apply on mainnet when in default section (Anthony Towns)
8a9817d [tests] Use regtest section in functional tests configs (Anthony Towns)
30f9407 [tests] Unit tests for config file sections (Anthony Towns)
95eb66d ArgsManager: support config file sections (Anthony Towns)
4d34fcc ArgsManager: drop m_negated_args (Anthony Towns)
3673ca3 ArgsManager: keep command line and config file arguments separate (Anthony Towns)
Pull request description:
The weekly meeting on [2017-12-07](http://www.erisian.com.au/meetbot/bitcoin-core-dev/2017/bitcoin-core-dev.2017-12-07-19.00.log.html) discussed allowing options to bitcoin to have some sensitivity to what network is in use. @theuni suggested having sections in the config file:
<cfields> an alternative to that would be sections in a config file. and on the
cmdline they'd look like namespaces. so, [testnet] port=5. or -testnet::port=5.
This approach is (more or less) supported by `boost::program_options::detail::config_file_iterator` -- when it sees a `[testnet]` section with `port=5`, it will treat that the same as "testnet.port=5". So `[testnet] port=5` (or `testnet.port=5` without the section header) in bitcoin.conf and `-testnet.port=5` on the command line.
The other aspect to this question is possibly limiting some options so that there is no possibility of accidental cross-contamination across networks. For example, if you're using a particular wallet.dat on mainnet, you may not want to accidentally use the same wallet on testnet and risk reusing keys.
I've set this up so that the `-addnode` and `-wallet` options are `NETWORK_ONLY`, so that if you have a bitcoin.conf:
wallet=/secret/wallet.dat
upnp=1
and you run `bitcoind -testnet` or `bitcoind -regtest`, then the `wallet=` setting will be ignored, and should behave as if your bitcoin.conf had specified:
upnp=1
[main]
wallet=/secret/wallet.dat
For any `NETWORK_ONLY` options, if you're using `-testnet` or `-regtest`, you'll have to add the prefix to any command line options. This was necessary for `multiwallet.py` for instance.
I've left the "default" options as taking precedence over network specific ones, which might be backwards. So if you have:
maxmempool=200
[regtest]
maxmempool=100
your maxmempool will still be 200 on regtest. The advantage of doing it this way is that if you have `[regtest] maxmempool=100` in bitcoin.conf, and then say `bitcoind -regtest -maxmempool=200`, the same result is probably in line with what you expect...
The other thing to note is that I'm using the chain names from `chainparamsbase.cpp` / `ChainNameFromCommandLine`, so the sections are `[main]`, `[test]` and `[regtest]`; not `[mainnet]` or `[testnet]` as might be expected.
Thoughts? Ping @MeshCollider @laanwj @jonasschnelli @morcos
Tree-SHA512: f00b5eb75f006189987e5c15e154a42b66ee251777768c1e185d764279070fcb7c41947d8794092b912a03d985843c82e5189871416995436a6260520fb7a4db
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
When network-specific options such as -addnode, -connect, etc are
specified in the default section of the config file, but that setting is
ignored due to testnet or regtest being in use, and it is not overridden
by either a command line option or a setting in the [regtest] or [test]
section of the config file, a warning is added to the log, eg:
Warning: Config setting for -connect only applied on regtest network when in [regtest] section.
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
d54874d Set SCHED_BATCH priority on the loadblk thread. (Evan Klitzke)
Pull request description:
Today I came across #10271, and while reading the discussion #6358 was linked to. Linux systems have a `SCHED_BATCH` scheduler priority that is useful for threads like loadblk. You can find the full details at [sched(7)](http://man7.org/linux/man-pages/man7/sched.7.html), but I'll quote the relevant part of the man page below:
> ...this policy will cause the scheduler to always assume that the thread is
CPU-intensive. Consequently, the scheduler will apply a small scheduling penalty
with respect to wakeup behavior, so that this thread is mildly disfavored in
scheduling decisions.
>
> This policy is useful for workloads that are noninteractive, but do not want to
lower their nice value, and for workloads that want a deterministic scheduling
policy without interactivity causing extra preemptions (between the workload's
tasks).
I think this change is useful independently of #10271 and irrespective of whether that change is merged. Under normal operation the loadblk thread will just import `mempool.dat`. However, if Bitcoin is started with `-reindex` or `-reindex-chainstate` this thread will use a great deal of CPU while it rebuilds the chainstate database (and the block database in the case of `-reindex`). By setting `SCHED_BATCH` this thread is less likely to interfere with interactive tasks (e.g. the user's web browser, text editor, etc.).
I'm leaving the nice value unchanged (which also affects scheduling decisions) because I think that's better set by the user. Likewise I'm not using [ioprio_set(2)](http://man7.org/linux/man-pages/man2/ioprio_set.2.html) because it can cause the thread to become completely I/O starved (and knowledgeable users can use `ionice(1)` anyway).
Tree-SHA512: ea8f7d3921ed5708948809da771345cdc33efd7ba3323e9dfec07a25bc21e8612e2676f9c178e2710c7bc437e8c9cafc5e0463613688fea5699b6e8e2fec6cff
