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1d8338d6b71447a5bf18750ca44724345aae5b60 util: use HAVE_FDATASYNC to determine fdatasync() use (fanquake)
Pull request description:
Rather than just using on Linux and NetBSD, use `fdatasync()` based
on whether it's available. i.e `fdatasync` is available in newer versions of FreeBSD.
This also aligns more closely with what is being done in leveldb.
Was pointed out by Luke in #19430.
ACKs for top commit:
practicalswift:
ACK 1d8338d6b71447a5bf18750ca44724345aae5b60 -- patch looks correct
laanwj:
ACK 1d8338d6b71447a5bf18750ca44724345aae5b60
hebasto:
ACK 1d8338d6b71447a5bf18750ca44724345aae5b60
Tree-SHA512: 7dd6d87f5dc0c0ba21ae42f96b63fc12b34806cd536457fc4284f14bb8c235765344be228b000c6adf4cd1e8c4e6a03a18ca18ab22599c42cc3b706e0bcd1a17
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31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0 [util] add RunCommandParseJSON (Sjors Provoost)
c17f54ee535faaedf9033717403e1f775b5f1530 [ci] use boost::process (Sjors Provoost)
32128ba682033560d6eb2e4848a9f77a842016d2 [doc] include Doxygen comments for HAVE_BOOST_PROCESS (Sjors Provoost)
3c84d85f7d218fa27e9343c5cd1a55e519218980 [build] msvc: add boost::process (Sjors Provoost)
c47e4bbf0b44f2de1278f9538124ec98ee0815bb [build] make boost-process opt-in (Sjors Provoost)
929cda5470f98d1ef85c05b1cad4e2fb9227e3b0 configure: add ax_boost_process (Sjors Provoost)
8314c23d7b39fc36dde8b40b03b6efbe96f85698 [depends] boost: patch unused variable in boost_process (Sjors Provoost)
Pull request description:
Prerequisite for external signer support in #16546. Big picture overview in [this gist](https://gist.github.com/Sjors/29d06728c685e6182828c1ce9b74483d).
This adds a new dependency [boost process](https://github.com/boostorg/process/tree/boost-1.64.0). This is part of Boost since 1.64 which is part of `depends`. Because the minimum Boost version is 1.47, this functionality is skipped for older versions of Boost.
Use `./configure --with-boost-process` to opt in, which checks for the presence of Boost::Process.
We add `UniValue runCommandParseJSON(const std::string& strCommand)` to `system.{h,cpp}` which calls an arbitrary command and processes the JSON returned by it. This is currently only called by the test suite.
~For testing purposes this adds a new regtest-only RPC method `runcommand`, as well as `test/mocks/command.py` used by functional tests.~ (this is no longer the case)
TODO:
- [ ] review boost process in #15440
ACKs for top commit:
achow101:
ACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0
hebasto:
re-ACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0, only rebased (verified with `git range-diff`) and removed an unintentional tab character since the [previous](https://github.com/bitcoin/bitcoin/pull/15382#pullrequestreview-458371035) review.
meshcollider:
Very light utACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0, although I am not very confident with build stuff.
promag:
Code review ACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0, don't mind the nit.
ryanofsky:
Code review ACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0. I left some comments below that could be ignored or followed up later. The current change is clean and comprehensive.
Tree-SHA512: c506e747014b263606e1f538ed4624a8ad7bcf4e025cb700c12cc5739964e254dc04a2bbb848996b170e2ccec3fbfa4fe9e2b3976b191222cfb82fc3e6ab182d
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detected" exception thrown
63e9e40b73507b0c9361fc8728d4e97fd72c9ec9 test: Add LockStackEmpty() (Hennadii Stepanov)
42b2a953735457cbf7b62a18b89811a66e573298 test: Repeat deadlock tests (Hennadii Stepanov)
1f96be25b020a56afa330286ee4f241aa14d3983 Preserve initial state if push_lock() throws exception (Hennadii Stepanov)
Pull request description:
On master (e3fa3c7d671e34038a262bb2db16b30bee82153d) if the `push_lock()` throws the "potential deadlock detected" exception (via the `potential_deadlock_detected()` call), the `LockData` instance internal state differs from one when the `push_lock()` was called. This non-well behaviour makes (at least) testing brittle.
This PR preserves the `LockData` instance initial state if `push_lock()` throws an exception, and improves the `sync_tests` unit test.
ACKs for top commit:
MarcoFalke:
re-ACK 63e9e40b73
vasild:
ACK 63e9e40
Tree-SHA512: 7679182154ce5f079b44b790faf76eb5f553328dea70a326ff6b600db70e2f9ae015a33a104ca070cb660318280cb79b6b42e37ea5166f26f9e627ba721fcdec
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f916847d2b56f2935c169e1b95b350a477c804cc rpc: Document getwalletinfo's unlocked_until field as optional (Justin Moon)
Pull request description:
The `getwalletinfo` RPC command's `unlocked_until` field is [optional in the code](https://github.com/justinmoon/bitcoin/blob/f916847d2b56f2935c169e1b95b350a477c804cc/src/wallet/rpcwallet.cpp#L2397), but wasn't marked as optional in the docs.
ACKs for top commit:
theStack:
ACK https://github.com/bitcoin/bitcoin/pull/19634/commits/f916847d2b56f2935c169e1b95b350a477c804cc
achow101:
ACK f916847d2b56f2935c169e1b95b350a477c804cc
kristapsk:
ACK f916847d2b56f2935c169e1b95b350a477c804cc
Tree-SHA512: 8d82f0992fdaf8160000acf4a6e7e7f9ff289a90a983be2e078cf754f4b03601637e5f405afa66bd55adef9b347fa5eac5cc1822033b2ac08c587609cf3dfe0f
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77c507358bda9bd6c496f33e0f4418c0603bb08d Make Hash[160] consume range-like objects (Pieter Wuille)
02c4cc5c5ddf61f98ee366a4bea8abc26de492bd Make CHash256/CHash160 output to Span (Pieter Wuille)
0ef97b1b103231db54e04a64bbdb5dcc3f34f482 Make MurmurHash3 consume Spans (Pieter Wuille)
e549bf8a9afae42fcda805e216a1cde62df195a6 Make CHash256 and CHash160 consume Spans (Pieter Wuille)
2a2182c387f607cd8284f33890bd285a81077b7f Make script/standard's BaseHash Span-convertible (Pieter Wuille)
e63dcc3a6752e7d406e7a650c2d6c2e95cd39aab Add MakeUCharSpan, to help constructing Span<[const] unsigned char> (Pieter Wuille)
567825049fb0e47e698dcaad9caa65693a6b42d3 Make uint256 Span-convertible by adding ::data() (Pieter Wuille)
131a2f0337f5c396739a47b60bb856ed84ec8937 scripted-diff: rename base_blob::data to m_data (Pieter Wuille)
Pull request description:
This makes use of the implicit constructions and conversions to Span introduced in #18468 to simplify the hash.h interface:
* All functions that take a pointer and a length are changed to take a Span instead.
* The Hash() and Hash160() functions are changed to take in "range" objects instead of begin/end iterators.
ACKs for top commit:
laanwj:
re-ACK 77c507358bda9bd6c496f33e0f4418c0603bb08d
jonatack:
Code review re-ACK 77c5073 per `git range-diff 14ceddd 49fc016 77c5073`
Tree-SHA512: 9ec929891b1ddcf30eb14b946ee1bf142eca1442b9de0067ad6a3c181e0c7ea0c99c0e291e7f6e7a18bd7bdf78fe94ee3d5de66e167401674caf91e026269771
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3bd67ba5a4ef3c20ef1f873b63c9f53a6c8608b6 Test addr response caching (Gleb Naumenko)
cf1569e074505dbbb9d29422803dd31bb62072d4 Add addr permission flag enabling non-cached addr sharing (Gleb Naumenko)
acd6135b43941fa51d52f5fcdb2ce944280ad01e Cache responses to addr requests (Gleb Naumenko)
7cc0e8101f01891aa8be093a00d993bb7579c385 Remove useless 2500 limit on AddrMan queries (Gleb Naumenko)
ded742bc5b96e3215d69c11fb3628d224e7ae034 Move filtering banned addrs inside GetAddresses() (Gleb Naumenko)
Pull request description:
This is a very simple code change with a big p2p privacy benefit.
It’s currently trivial to scrape any reachable node’s AddrMan (a database of all nodes known to them along with the timestamps).
We do have a limit of one GETADDR per connection, but a spy can disconnect and reconnect even from the same IP, and send GETADDR again and again.
Since we respond with 1,000 random records at most, depending on the AddrMan size it takes probably up to 100 requests for an spy to make sure they scraped (almost) everything.
I even have a script for that. It is totally doable within couple minutes.
Then, with some extra protocol knowledge a spy can infer the direct peers of the victim, and other topological stuff.
I suggest to cache responses to GETADDR on a daily basis, so that an attacker gets at most 1,000 records per day, and can’t track the changes in real time. I will be following up with more improvements to addr relay privacy, but this one alone is a very effective. And simple!
I doubt any of the real software does *reconnect to get new addrs from a given peer*, so we shouldn’t be cutting anyone.
I also believe it doesn’t have any negative implications on the overall topology quality. And the records being “outdated” for at most a day doesn’t break any honest assumptions either.
ACKs for top commit:
jnewbery:
reACK 3bd67ba5a4ef3c20ef1f873b63c9f53a6c8608b6
promag:
Code review ACK 3bd67ba5a4ef3c20ef1f873b63c9f53a6c8608b6.
ariard:
Code Review ACK 3bd67ba
Tree-SHA512: dfa5d03205c2424e40a3f8a41af9306227e1ca18beead3b3dda44aa2a082175bb1c6d929dbc7ea8e48e01aed0d50f0d54491caa1147471a2b72a46c3ca06b66f
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-BEGIN VERIFY SCRIPT-
sed -i '/https:\/\/bitcoin.org\/en\/developer-reference/d' ./src/protocol.h
-END VERIFY SCRIPT-
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10b7a6d532148f880568c529e61a6d7edc7c91a9 refactor: make txmempool interface use GenTxid (Pieter Wuille)
5c124e17407a5b5824fec062b73a03a1030fa28c refactor: make FindTxForGetData use GenTxid (Pieter Wuille)
a2bfac893549e2d62708d8cda7071b4fe9750a2d refactor: use GenTxid in tx request functions (Pieter Wuille)
e65d115b725640eefb3bfa09786447816f7ca9cc test: request parents of orphan from wtxid relay peer (Anthony Towns)
900d7f6c075fd78e63503f31d267dbc16b3983d9 p2p: enable fetching of orphans from wtxid peers (Pieter Wuille)
9efd86a908cf09d9ddbadd3195f202635117d505 refactor: add GenTxid (=txid or wtxid) type and use it for tx request logic (Pieter Wuille)
d362f19355b36531a4a82094e0259f7f3db500a7 doc: list support for BIP 339 in doc/bips.md (Pieter Wuille)
Pull request description:
This is based on https://github.com/bitcoin/bitcoin/pull/18044#discussion_r450687076.
A new type `GenTxid` is added to protocol.h, which represents a tagged txid-or-wtxid. The tx request logic is updated to use these instead of uint256s, permitting per-announcement distinguishing of txid/wtxid (instead of assuming that everything we want to request from a wtxid peer is wtx). Then the restriction of orphan-parent requesting to non-wtxid peers is lifted.
Also document BIP339 in doc/bips.md.
ACKs for top commit:
jnewbery:
Code review ACK 10b7a6d532148f880568c529e61a6d7edc7c91a9
jonatack:
ACK 10b7a6d532148f880568c529e61a6d7edc7c91a9
ajtowns:
ACK 10b7a6d532148f880568c529e61a6d7edc7c91a9 -- code review. Using gtxid to replace the is_txid_or_wtxid flag for the mempool functions is nice.
naumenkogs:
utACK 10b7a6d
Tree-SHA512: d518d13ffd71f8d2b3c175dc905362a7259689e6022a97a0b4f14f1f9fdd87475cf5af70cb12338d1e5d31b52c12e4faaea436114056a2ae9669cb506240758b
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ae4958be95a1158de9992a8e43ce032d87c74f13 rpc: RPCResult Type of MempoolEntryDescription should be OBJ. If multiple entries are possible, wrapping Type should be OBJ_DYN. fixes #19579 (Chris L)
Pull request description:
If multiple entries are possible, wrapping Type should be OBJ_DYN.
fixes #19579
Top commit has no ACKs.
Tree-SHA512: 59cf9f6e9729a69a867e924d8306e0cd6b70a3d702fc5a4111345874bb1224ee51ac3f70cea61b25cfe6bde7f65cb02528d52acc20dda4eda692eddf34f217e8
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Based on a suggestion by Russell Yanofsky.
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This is in preparation for exposing a ::data member function.
-BEGIN VERIFY SCRIPT-
sed -i "s/\([^.]\|other.\)data/\1m_data/g" src/uint256.h src/uint256.cpp
-END VERIFY SCRIPT-
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Based on a commit by Anthony Towns.
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fae8c28dae747f9c4c6481049742346d18202fc8 Pass mempool pointer to GetCoinsCacheSizeState (MarcoFalke)
fac674db200e6b2d5b32069335fb24e713d7b69f Pass mempool pointer to UnloadBlockIndex (MarcoFalke)
faec851b6eb7e65e28cdcae50d6dc86fafa0f91c 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 fae8c28dae747f9c4c6481049742346d18202fc8
fjahr:
Code review ACK fae8c28dae747f9c4c6481049742346d18202fc8
darosior:
Tested ACK fae8c28dae747f9c4c6481049742346d18202fc8
jamesob:
ACK fae8c28dae747f9c4c6481049742346d18202fc8 ([`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
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8ed9002cd14165f751442f738fbf1fb8a37611b2 refactor: use local argsmanager in CRegTestParams (Ivan Metlushko)
9b20f6682845870d6ac53a01d3166fb83c467e7d scripted-diff: Replace gArgs with local argsman (Ivan Metlushko)
a316e9ce265212a7c6c4ef7922420f6ecba9e7b0 refactor: add unused ArgsManager to replace gArgs (Ivan Metlushko)
Pull request description:
Rationale: reduce use of gArgs to decouple code and simplify future maintenance and easier unit testing.
This PR is continuation of work started in #18926 and #18662
It covers only places that register args in ArgsManager with `AddArgs()` or `AddHiddenArgs()`.
Closes #19511
ACKs for top commit:
MarcoFalke:
ACK 8ed9002cd14165f751442f738fbf1fb8a37611b2 👛
Tree-SHA512: 7e6ba8e8357a48833c71e9c3942a769acb3d93bdcc6748a8ef2b7c4461a2499419b60896abf1d8b6bf8e88ee2590284cdd5da64220243ac22375300bcb8fe3e8
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BerkeleyDatabase
0fcff547d5b47822c13104978fda0c486e596526 walletdb: Ensure that having no database handle is a failure (Andrew Chow)
da039d2a915097c23f2b46e063042409bdc3c4f4 Remove BDB dummy databases (Andrew Chow)
0103d6434ea9d155259b40575008239a3762d6f7 Introduce DummyDatabase and use it in the tests (Andrew Chow)
Pull request description:
In the unit tests, we use a dummy `WalletDatabase` which does nothing and always returns true. This is currently implemented by creating a `BerkeleyDatabase` in dummy mode. This PR instead adds a `DummyDatabase` class which does nothing and never fails for use in the tests. `CreateDummyWalletDatabase` is changed to return this `DummyDatabase` and `BerkeleyDatabase` is cleaned up to remove all of the checks for `IsDummy`.
Based on `WalletDatabase` abstract class introduced in #19334
ACKs for top commit:
instagibbs:
utACK https://github.com/bitcoin/bitcoin/pull/19102/commits/0fcff547d5b47822c13104978fda0c486e596526
MarcoFalke:
crACK 0fcff547d5b47822c13104978fda0c486e596526 🚈
Tree-SHA512: 05fbf32e078753e9a55a05f4c080b6d365b909a2a3a8e571b7e64b59ebbe53da49394f70419cc793192ade79f312f5e0422ca7c261ba81bae5912671c5ff6402
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net processing
c251d710a4c2981c6d52362a9a89db84da3d4a67 p2p, refactoring: use CInv helpers in net_processing.cpp (Jon Atack)
4254cd9f8f2437a916b06db4d925ce4eff8c94b9 p2p: add CInv transaction message helper methods (Jon Atack)
Pull request description:
Following the merge of wtxid relay in #18044, this is the first of three refactoring PRs (this one, #19610, and #19611) with no change in behavior, tightly scoped to ease review, to simplify the net processing code and improve encapsulation:
- add `CInv` transaction message helper methods, defined in the class
- use the new helpers in `net_processing.cpp` to simplify the code and improve encapsulation
Test coverage is provided by the functional p2p tests, notably (from seeing which tests failed when breaking things to test coverage) `p2p_segwit`, `p2p_tx_download`, `p2p_feefilter`, and `p2p_permissions`.
ACKs for top commit:
fjahr:
Code review ACK c251d710a4c2981c6d52362a9a89db84da3d4a67
laanwj:
Code review ACK c251d710a4c2981c6d52362a9a89db84da3d4a67
vasild:
ACK c251d71
theStack:
Code-Review ACK c251d710a4c2981c6d52362a9a89db84da3d4a67
hebasto:
ACK c251d710a4c2981c6d52362a9a89db84da3d4a67, I have reviewed the code and it looks OK, I agree it can be merged.
Tree-SHA512: ead034b3c9e438909b4c5010c570d7930e69063c114290b051b7cebfd9bd5b19f573218bebe8a521256d32e830797f997adad3d85b4539c64ac5762b698e656d
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78c312c983255e15fc274de2368a2ec13ce81cbf Replace current benchmarking framework with nanobench (Martin Ankerl)
Pull request description:
Replace current benchmarking framework with nanobench
This replaces the current benchmarking framework with nanobench [1], an
MIT licensed single-header benchmarking library, of which I am the
autor. This has in my opinion several advantages, especially on Linux:
* fast: Running all benchmarks takes ~6 seconds instead of 4m13s on
an Intel i7-8700 CPU @ 3.20GHz.
* accurate: I ran e.g. the benchmark for SipHash_32b 10 times and
calculate standard deviation / mean = coefficient of variation:
* 0.57% CV for old benchmarking framework
* 0.20% CV for nanobench
So the benchmark results with nanobench seem to vary less than with
the old framework.
* It automatically determines runtime based on clock precision, no need
to specify number of evaluations.
* measure instructions, cycles, branches, instructions per cycle,
branch misses (only Linux, when performance counters are available)
* output in markdown table format.
* Warn about unstable environment (frequency scaling, turbo, ...)
* For better profiling, it is possible to set the environment variable
NANOBENCH_ENDLESS to force endless running of a particular benchmark
without the need to recompile. This makes it to e.g. run "perf top"
and look at hotspots.
Here is an example copy & pasted from the terminal output:
| ns/byte | byte/s | err% | ins/byte | cyc/byte | IPC | bra/byte | miss% | total | benchmark
|--------------------:|--------------------:|--------:|----------------:|----------------:|-------:|---------------:|--------:|----------:|:----------
| 2.52 | 396,529,415.94 | 0.6% | 25.42 | 8.02 | 3.169 | 0.06 | 0.0% | 0.03 | `bench/crypto_hash.cpp RIPEMD160`
| 1.87 | 535,161,444.83 | 0.3% | 21.36 | 5.95 | 3.589 | 0.06 | 0.0% | 0.02 | `bench/crypto_hash.cpp SHA1`
| 3.22 | 310,344,174.79 | 1.1% | 36.80 | 10.22 | 3.601 | 0.09 | 0.0% | 0.04 | `bench/crypto_hash.cpp SHA256`
| 2.01 | 496,375,796.23 | 0.0% | 18.72 | 6.43 | 2.911 | 0.01 | 1.0% | 0.00 | `bench/crypto_hash.cpp SHA256D64_1024`
| 7.23 | 138,263,519.35 | 0.1% | 82.66 | 23.11 | 3.577 | 1.63 | 0.1% | 0.00 | `bench/crypto_hash.cpp SHA256_32b`
| 3.04 | 328,780,166.40 | 0.3% | 35.82 | 9.69 | 3.696 | 0.03 | 0.0% | 0.03 | `bench/crypto_hash.cpp SHA512`
[1] https://github.com/martinus/nanobench
ACKs for top commit:
laanwj:
ACK 78c312c983255e15fc274de2368a2ec13ce81cbf
Tree-SHA512: 9e18770b18b6f95a7d0105a4a5497d31cf4eb5efe6574f4482f6f1b4c88d7e0946b9a4a1e9e8e6ecbf41a3f2d7571240677dcb45af29a6f0584e89b25f32e49e
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Prevents a spy from scraping victim's AddrMan by
reconnecting and re-requesting addrs.
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Previously having no database handle could still be considered a success
when BerkeleyDatabase and BerkeleyBatch were used for dummy database
things. With dedicated DummyDatabase and DummyBatch classes now, these
should fail.
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74507ce71eb61105fb3ae8460999099234ca7b8b walletdb: Remove BerkeleyBatch friend class from BerkeleyDatabase (Andrew Chow)
00f0041351bcd6ddbab110df1189f79ce011e192 No need to check for duplicate fileids in all dbenvs (Andrew Chow)
d86efab37002841fd059251672e1ec1a977b743f walletdb: Move Db->open to BerkeleyDatabase::Open (Andrew Chow)
4fe4b3bf1b152877677a6115f82aefaf318dd514 walletdb: track database file use as m_refcount within BerkeleyDatabase (Andrew Chow)
65fb8807ac402d1e924fd85969b5837c192bf59f Combine BerkeleyEnvironment::Verify into BerkeleyDatabase::Verify (Andrew Chow)
Pull request description:
`BerkeleyBatch` and `BerkeleyDatabase` are kind of messy. The goal of this is to clean up them up so that they are logically separated.
`BerkeleyBatch` currently handles the creation of the `BerkeleyDatabase`'s `Db` handle. This is instead moved into `BerkeleyDatabase` and is called by `BerkeleyBatch`.
Instead of having `BerkeleyEnvironment` track each database's usage, have `BerkeleyDatabase` track this usage itself with the `m_refcount` variable that is present in `WalletDatabase`.
Lastly, instead of having each `BerkeleyEnvironment` store the fileids of the databases open in it, have a global `g_fileids` to track those fileids. We were already checking fileid uniqueness globally (by checking the fileids in every environment when opening a database) so it's cleaner to do this with a global variable.
All of these changes allow us to make `BerkeleyBatch` and `BerkeleyDatabase` no longer be friend classes.
The diff of this PR is currently the same as in ##18971
Requires #19334
ACKs for top commit:
laanwj:
Code review ACK 74507ce71eb61105fb3ae8460999099234ca7b8b
ryanofsky:
Code review ACK 74507ce71eb61105fb3ae8460999099234ca7b8b. No changes since last review other than rebase
Tree-SHA512: 845d84ee1a470e2bf5d2e2e3d7738183d8ce43ddd06a0bbd57edecf5779b2f55d70728b1b57f5daab0f078650a8d60c3e19dc30b75b36e7aa952ce268399d5f6
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bcfebb6d5511ad4c156868bc799831ace628a225 net: save the network type explicitly in CNetAddr (Vasil Dimov)
100c64a95b518a6a19241aec4058b866a8872d9b net: document `enum Network` (Vasil Dimov)
Pull request description:
(chopped off from https://github.com/bitcoin/bitcoin/pull/19031 to ease review)
Before this change, we would analyze the contents of `CNetAddr::ip[16]`
in order to tell which type is an address. Change this by introducing a
new member `CNetAddr::m_net` that explicitly tells the type of the
address.
This is necessary because in BIP155 we will not be able to tell the
address type by just looking at its raw representation (e.g. both TORv3
and I2P are "seemingly random" 32 bytes).
As a side effect of this change we no longer need to store IPv4
addresses encoded as IPv6 addresses - we can store them in proper 4
bytes (will be done in a separate commit). Also the code gets
somewhat simplified - instead of
`memcmp(ip, pchIPv4, sizeof(pchIPv4)) == 0` we can use
`m_net == NET_IPV4`.
ACKs for top commit:
troygiorshev:
reACK bcfebb6d5511ad4c156868bc799831ace628a225 via `git range-diff master 64897c5 bcfebb6`
jonatack:
re-ACK bcfebb6 per `git diff 662bb25 bcfebb6`, code review, debug build/tests clean, ran bitcoind.
laanwj:
Code review ACK bcfebb6d5511ad4c156868bc799831ace628a225
Tree-SHA512: 9347e2a50feac617a994bfb46a8f77e31c236bde882e4fd4f03eea4766cd5110216f5f3d24dee91d25218bab7f8bb6e1d2d6212a44db9e34594299fd6ff7606b
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-BEGIN VERIFY SCRIPT-
sed -i -e 's/gArgs.Add/argsman.Add/g' `git grep -l "gArgs.Add"`
-END VERIFY SCRIPT-
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f19fdd47a6371dcbe0760ef6f3c3c5adb31b1bb4 test: add test for CChainState::ResizeCoinsCaches() (James O'Beirne)
8ac3ef46999ed676ca3775f7b2f461d92f09a542 add ChainstateManager::MaybeRebalanceCaches() (James O'Beirne)
f36aaa6392fdbdac6891d92202d3efeff98754f4 Add CChainState::ResizeCoinsCaches (James O'Beirne)
b223111da2e0e9ceccef75df8a20252b0094b7bc 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 f19fdd47a6371dcbe0760ef6f3c3c5adb31b1bb4 -- 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 f19fdd47a6371dcbe0760ef6f3c3c5adb31b1bb4. 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
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Rather than just using it on Linux and NetBSD, use `fdatasync()` based
on whether it's available. i.e it is available in newer versions
of FreeBSD (11.1 and later).
This also aligns our code more closely with what is being done in leveldb.
Was pointed out by Luke in #19430.
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a8865f8b7215a975fd3dd9d97d7f791ac93ea65d [net processing] Tidy up Misbehaving() (John Newbery)
d15b3afb4cd1b00ad698e6dd19c5861a53e01c42 [net processing] Always supply debug message to Misbehaving() (John Newbery)
634144a1c2a3506fd6285e76f3ce0cbb3648cc69 [net processing] Fixup MaybeDiscourageAndDisconnect() style (John Newbery)
Pull request description:
This PR makes a few minor clean-ups to `Misbehaving()` in preparation to move it out of the cs_main lock.
There are very minor logging changes but otherwise no functional changes.
ACKs for top commit:
troygiorshev:
tACK a8865f8b7215a975fd3dd9d97d7f791ac93ea65d
jonatack:
ACK a8865f8
fjahr:
Code review ACK a8865f8b7215a975fd3dd9d97d7f791ac93ea65d
promag:
Code review ACK a8865f8b7215a975fd3dd9d97d7f791ac93ea65d.
Tree-SHA512: 98fb4f5f76399715545a1ea19290dcebfc8cb4eff72a1d3555dd3de6e184040bb8668c9651dab21db0dfd8e674e53a5977105ef76547146c9f6fa6b4b9d2ba59
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