1f9b2e150c cmake: Require `zip` only for `deploy` target (Hennadii Stepanov)
0aeff29951 cmake: Check for `makensis` tool before using it (Hennadii Stepanov)
Pull request description:
For `x86_64-w64-mingw32` and `*-apple-darwin` targets, the optional `deploy` target requires dedicated tools: `makensis` and `zip`, respectively.
This PR introduces a uniform checks for those tools when attempting to build the `deploy` target, ensuring they are not required for configuring and building any other targets.
Here is an example of workflow for `x86_64-w64-mingw32`:
```
$ # `nsis` is not installed
$ cmake -B build -G "GNU Makefiles" --toolchain depends/x86_64-w64-mingw32/toolchain.cmake
$ cmake --build build -j $(nproc)
$ cmake --build build -t deploy
Error: NSIS not found.
Please install NSIS and/or ensure that its executable is accessible to the find_program() command—
for example, by setting the MAKENSIS_EXECUTABLE variable or another relevant CMake variable.
Then re-run cmake to regenerate the build system.
Built target deploy
$ sudo apt install nsis
$ cmake -B build
$ cmake --build build -t deploy
...
[100%] Generating bitcoin-win64-setup.exe
[100%] Built target deploy
```
Fixes https://github.com/bitcoin/bitcoin/issues/32018.
ACKs for top commit:
hodlinator:
re-ACK 1f9b2e150c
fanquake:
ACK 1f9b2e150c
Tree-SHA512: 5e2bd28a13bd8fa7c4ba8cf1756d200a4651afe83c463d76ece10027cca343e124eff97012a5368028f761df60f420ab891106b4e33b50045051d57c7464ff98
54e6eacc1f test: Enable ResetCoverageCounters beyond Linux (janb84)
Pull request description:
In PR [#31901](https://github.com/bitcoin/bitcoin/pull/31901), Coverage.cpp was introduced as a separate utility file, based on existing code. However, the macro defined in Coverage.cpp was limited to Clang and Linux, which caused issues for users on macOS when using the newly introduced deterministic test tooling.
This change adds fallback functions which are used when building without code coverage on non linux env.
This adds support for macOS to ResetCoverageCounters. ResetCoverageCounters is used by the unit tests in `g_rng_temp_path_init` to support the deterministic unit test tooling. It is also used in fuzz tests to completely suppress coverage from anything init-related.
See [Readme](https://github.com/bitcoin/bitcoin/blob/master/contrib/devtools/README.md) on how to test this for deterministic unit & fuzz test.
Suggestion for test files:
- for unit test: `util_string_tests`
- for fuzz test: `addition_overflow `
These files should give deterministic results
ACKs for top commit:
maflcko:
review-only ACK 54e6eacc1f
hodlinator:
re-ACK 54e6eacc1f
Tree-SHA512: dd71da6f76d4fc9e64bf521bbfe5e7483d77c2ca0380f9e692502e64b529068ea33f21b19399481feb7c6780a23d893d8b7f733cef641a2db18a13397c98deea
fa3b442715 ci: Use Cirrus dockerfile cache (MarcoFalke)
Pull request description:
The lint task is problematic, because:
* It doesn't check modifications to `ci/lint_imagefile`
* It calls a separate script that installs packages on every run (taking time)
* It uses `*_cache` instructions to cache some installed parts, but not all
Fix all issues by using `ci/lint_imagefile` (https://cirrus-ci.org/guide/docker-builder-vm/#dockerfile-as-a-ci-environment)
ACKs for top commit:
willcl-ark:
ACK fa3b442715
Tree-SHA512: 243d78219639b83721d4e5cb32d16e5c208a61c919d04646279be5825ba92d97c490b5d4d28ea103eb820b1a259904574cb3e32eaca3f11c3031810e3d87ff4a
6f9f415a4f doc: shallow clone qa-assets (Lőrinc)
Pull request description:
While reviewing https://github.com/bitcoin/bitcoin/pull/31457#pullrequestreview-2690077410 I noticed that cloning `qa-assets` takes a lot of time - shallow cloning should suffice here.
I haven't checked the other clones in this file but suggestion are welcome.
ACKs for top commit:
maflcko:
lgtm ACK 6f9f415a4f
Tree-SHA512: 21bd676c7709dbf7fd30b239d0a72f9c230453ed8f8a1b5319ac92ef9c5e67780939f095a239dd31bcb4550f8d69eaed4931a221e19cb0b957f18fac623c4a01
52482cb244 test: Check datadir cleanup after assumeutxo was successful (Fabian Jahr)
Pull request description:
I noticed that the proper datadir cleanup after a successful restart of an assumutxo node does not seem to be covered in our tests. This is added here.
ACKs for top commit:
l0rinc:
utACK 52482cb244
mabu44:
Re-ACK 52482cb244
Prabhat1308:
re-ACK [`52482cb`](52482cb244)
TheCharlatan:
Re-ACK 52482cb244
Tree-SHA512: cc941afeba250050eaccf5112255d961253fec9b2683545454a0d2fbe4d542178394b301d169a9dd79edbf6b5d478d95282727dbb0aca96ee79d4cd1ff80f19b
7ebc458a8c qt: doc: adapt outdated binary paths to CMake changes (Sebastian Falbesoner)
Pull request description:
Adapt the qt-related instances of outdated binary paths to `./build/bin/...` (see [#30454](https://github.com/bitcoin/bitcoin/pull/30454) and the more recently merged [#31161](https://github.com/bitcoin/bitcoin/pull/31161)). According to `$ git grep src/qt.*bitcoin` there should be no more left to address.
ACKs for top commit:
maflcko:
lgtm ACK 7ebc458a8c
Sjors:
utACK 7ebc458a8c
fanquake:
ACK 7ebc458a8c
hebasto:
ACK 7ebc458a8c.
Tree-SHA512: 8cd6579fdf209ec4ee3c4c9cfb94cb11d5d5115068d31613d356ca1303214dc4461580535c2d3f2773f373a4271e9a82df25596d8369eef8235822f7030d88bd
4cd95a2921 refactor: modernize remaining outdated trait patterns (Lőrinc)
ab2b67fce2 scripted-diff: modernize outdated trait patterns - values (Lőrinc)
8327889f35 scripted-diff: modernize outdated trait patterns - types (Lőrinc)
Pull request description:
The use of [`std::underlying_type_t<T>`](https://en.cppreference.com/w/cpp/types/underlying_type) or [`std::is_enum_v<T>`](https://en.cppreference.com/w/cpp/types/is_enum) (and similar ones, introduced in C++14) replace the `typename std::underlying_type<T>::type` and `std::is_enum<T>::value` constructs (available in C++11).
The `_t` and `_v` helper alias templates offer a more concise way to extract the type and value directly.
I've modified the instances I found in the codebase one-by-one (noticed them while investigating https://github.com/bitcoin/bitcoin/pull/31868), and afterwards extracted scripted diff commits to do the trivial ones automatically.
The last commit contains the values that were easier done manually.
I've excluded changes from `src/bench/nanobench.h`, `src/leveldb`, `src/minisketch`, `src/span.h` and `src/sync.h` - let me know if you think they should be included instead.
A few of the code changes can also be reproduced by clang-tidy (but not all of them):
```bash
cmake -B build -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DBUILD_BENCH=ON -DBUILD_FUZZ_BINARY=ON -DBUILD_FOR_FUZZING=ON && cmake --build build -j$(nproc)
run-clang-tidy -quiet -p build -j $(nproc) -checks='-*,modernize-type-traits' -fix $(git grep -lE '::(value|type)' ./src ':(exclude)src/bench/nanobench.h' ':(exclude)src/leveldb' ':(exclude)src/minisketch' ':(exclude)src/span.h' ':(exclude)src/sync.h')
```
ACKs for top commit:
laanwj:
Concept and code review ACK 4cd95a2921
Tree-SHA512: a4bcf0f267c0f4e02983b4d548ed6f58d464ec379ac5cd1f998b9ec0cf698b53a9f2557a05a342b661f1d94adefc9a0ce2dc8f764d49453aaea95451e2c4c581
3301d2cbe8 qa: Wait for txindex to avoid race condition (Hodlinator)
9bfb0d75ba qa: Remove unnecessary -txindex args (Hodlinator)
7ac281c19c qa: Add missing coverage of corrupt indexes (Hodlinator)
Pull request description:
- Add synchronization in 3 places where if the Transaction Index happens to be slow, we get rare test failures when querying it for transactions (one such case experienced on Windows, prompting investigation).
- Remove unnecessary TxIndex initialization in some tests.
- Add some test coverage where TxIndex aspect could be tested in feature_init.py.
ACKs for top commit:
fjahr:
re-ACK 3301d2cbe8
mzumsande:
Code Review ACK 3301d2cbe8
furszy:
Code review ACK 3301d2cbe8
Prabhat1308:
Concept ACK [`3301d2c`](3301d2cbe8)
Tree-SHA512: 7c2019e38455f344856aaf6b381faafbd88d53dc88d13309deb718c1dcfbee4ccca7c7f1b66917395503a6f94c3b216a007ad432cc8b93d0309db9805f38d602
36b0713edc test: fix intermittent failure in wallet_reorgsrestore.py (furszy)
Pull request description:
In response to #32066 intermittent failure.
Wait until the node's process has fully stopped before starting a new instance of it.
Same behavior as in the [tool_wallet.py](698f86964c/test/functional/tool_wallet.py (L540)) test.
ACKs for top commit:
maflcko:
lgtm ACK 36b0713edc
Chand-ra:
tACK [36b0713](36b0713edc)
Tree-SHA512: 8e01493ef1fb58589479f3e12d7429d02ca75a2183d5f79d3b6a2fbf13334878926274a20857f1b4729afc1d30b65789daed229ce06ba236b91d949b73f45d5a
02942056fd test: fix intermittent failure in p2p_orphan_handling.py (Martin Zumsande)
Pull request description:
If the mocktime is bumped before the node has successfully disconnected the peer, the requests for both parents could be spread over two GETDATAS: The first time `GetRequestsToSend` is invoked it would only request one tx from peer2, because the other one would only be available after peer1 was disconnected and its outstanding txrequest cleared.
So two GETDATAs would be sent, which would make the test fail.
Fixes#31700
ACKs for top commit:
maflcko:
lgtm ACK 02942056fd
instagibbs:
ACK 02942056fd
Tree-SHA512: 769200898345da197d86d673d9506f08f0a64b72a456e7e7c988ac37450d9c54ec65da1c8447c566c8578f7cfccdc5723ea680e636bfbe0b3d38265e5ef57774
Non-Linux linkers require a fallback implementation for when coverage is not enabled.
The fallbacks are marked weak to have lower precedence than built-in implementations when available, removing ambiguity from the linker.
9157d9e449 build: use make < 3.82 syntax for define directive (Sjors Provoost)
Pull request description:
From the GNU make 3.82 [release announcement](https://lists.gnu.org/archive/html/info-gnu/2010-07/msg00023.html) (2010):
> The 'define' make directive now allows a variable assignment operator
after the variable name, to allow for simple, conditional, or appending
multi-line variable assignment.
macOS ships with 3.81 (2006). This caused the multiprocess config options to be ignored.
Fixes#32068
ACKs for top commit:
ryanofsky:
Code review ACK 9157d9e449. This is a pretty unusual bug and I don't understand how it wasn't causing any errors with make 3.81, just causing the flags to be ignored.
Tree-SHA512: a07322e25ef18296264379a2704f31c654df196d3ea09fe712885c38813e54d758a2d603ee9f7a302da8011fba6d139aa30a356175ca99df728ade2572a87560
fa9cf38ab6 scripted-diff: test: Rename send_message to send_without_ping (MarcoFalke)
fa4356717d test: Prefer send_and_ping over send_message+sync_with_ping (MarcoFalke)
Pull request description:
`send_message` is problematic, because it is easy to forget a `sync_with_ping` (or other `wait_until`), leading to intermittent test failures. (Example: https://github.com/bitcoin/bitcoin/pull/31837#discussion_r1950370246)
There are more uses of `send_and_ping` in the codebase than `send_message`, so in most cases `send_and_ping` is needed anyway.
For the remaining cases, clearly document that no sync happens by renaming `send_message` to `send_without_ping`.
ACKs for top commit:
instagibbs:
ACK fa9cf38ab6
Tree-SHA512: 31caa6568d292ae3d3dda931a94aaa30cc1205ec2ef537a484393eb55687f86c212f1e751ac4a7636610bdf591502a50995dc63bf02f97be9fdc482072160b07
d5537c18a9 fuzz: make sure DecodeBase58(Check) is called with valid values more often (Lőrinc)
bad1433ef2 fuzz: Always restrict base conversion input lengths (Lőrinc)
Pull request description:
This is a follow-up to https://github.com/bitcoin/bitcoin/pull/30746, expanding coverage by:
* restricting every input for the base58 conversions, capping max sizes to `100` instead of `1000` or all available input (suggested by marcofleon in https://github.com/bitcoin/bitcoin/pull/30746#discussion_r1963718683) since most actual usage has lengths of e.g. `21`, `34`, `78`.
* providing more valid values to the decoder (suggested by maflcko in https://github.com/bitcoin/bitcoin/pull/30746#discussion_r1957847712) by randomly providing a random input or a valid encoded one; this also enables unifying the roundtrip tests to a single roundtrip per fuzz.
ACKs for top commit:
mzumsande:
Code Review / lightly tested ACK d5537c18a9
maflcko:
review ACK d5537c18a9🚛
Tree-SHA512: 50365654cdac8a38708a7475eaa43396642b7337e2ee8999374c3faafff4f05457abc1a54c701211e0ed24d36c12af77bcad17b49695699be42664f2be660659
2819c51482 test: Use rpc_deprecated only for testing deprecation (Fabian Jahr)
Pull request description:
The comment in `functional/rpc_deprecated.py` says "This test should be used to verify correct behaviour of deprecated RPC methods with and without the -deprecatedrpc flags." I think we can get rid of the "with" part since we can assume that every deprecated RPC is already tested in at least one other functional test. (I didn't look but I could verify in our coverage if someone has doubts about that.) In order for this test to continue working, the flag will need to be used there. Otherwise this seems to prescribe copy+pasting a basic test from another file and I don't see a good reason for that.
ACKs for top commit:
maflcko:
lgtm ACK 2819c51482
janb84:
re ACK [2819c51](2819c51482)
polespinasa:
reACK 2819c51482
Tree-SHA512: 96edfd07be863ad19f99feb27afbc2c3ad53560c93c93eac8de8d766ad8c46e5aa02fd013fec99af794cbe9adca8e459d5b80b454caea7e67b2388003e010bb6
From the GNU make 3.82 release announcement:
* The 'define' make directive now allows a variable assignment operator
after the variable name, to allow for simple, conditional, or appending
multi-line variable assignment.
macOS ships with 3.81. This caused the multiprocess config options
to be ignored.
Fixes#32068
Co-authored-by: Ryan Ofsky <ryan@ofsky.org>
Wait until the node's process has fully stopped before starting a new instance.
Since the same code is used in tool_wallet.py, this consolidates the behavior
into a 'kill_process()' function.
send_message only drops the bytes in a buffer and a sync is needed to
avoid intermittent test issues. Change the name of the method to make
this more apparent during review.
-BEGIN VERIFY SCRIPT-
sed -i 's/send_message(/send_without_ping(/g' $( git grep -l 'send_message(' )
-END VERIFY SCRIPT-
36b6f36ac4 build: require sqlite when building the wallet (Sjors Provoost)
Pull request description:
Require that sqlite is available in order to compile the wallet. Removes instances of `USE_SQLITE` since it is no longer possible to not have sqlite available.
The `NO_SQLITE` option is dropped from depends.
This is another step towards dropping the legacy wallet, extracted from #31250.
ACKs for top commit:
m3dwards:
ACK 36b6f36ac4
davidgumberg:
crACK 36b6f36ac4
hebasto:
re-ACK 36b6f36ac4.
Tree-SHA512: 870a0135671c80c4f28602119eb8637a1ed43b51b1673bfe88425782fb62ec6ef0f3d6baf0d5984d6a243779b0f63423fd4c4dc324ef87bffba13d63e05ad793
80b5e7f2cb build: Remove manpages when making MacOS app (Ava Chow)
Pull request description:
When creating the MacOS app, the only file that should be in `Bitcoin-Qt.app/Contents/MacOS` is `Bitcoin-Qt`. Since #31844, there was also a `share/` containing the manpage for bitcoin-qt. This manpage is not useful to app users, and it is also causing code signing issues. Thus the directory should be removed when making the app.
Fixes https://github.com/bitcoin/bitcoin/issues/32052#issuecomment-2723007926
ACKs for top commit:
fanquake:
ACK 80b5e7f2cb
Tree-SHA512: fd15b7f99737484e40d31c583e01acc7470d038b0c584dfaefecc740811565ceee048913b6e5e37e7935b74d8100dc8323aed3f69d9a6baa5f434754009eb18c
5dfef6b9b3 depends: remove NO_HARDEN option (fanquake)
Pull request description:
This was only needed to work around a (Libtool related iirc) Windows issue, when hardening was disabled. I can no-longer recreate this failure, so it'd be good to remove this Windows carveout.
ACKs for top commit:
davidgumberg:
crACK 5dfef6b9b3
laanwj:
Code review ACK 5dfef6b9b3
Tree-SHA512: 38657f09c537ba02ecaf0676d47087a835283cabfc81ad9b2d5e68858dcd7a610b6a1df6730920d40b48be2bbc55a45d6b8aea4364884b5f1c1bd12126940f5b
If we bump the mocktime before the node has successfully disconnected
the peer, the requests for both parents could be spread over
two GETDATAS, which would make the test fail.
a24419f8be contrib: Fix `gen-bitcoin-conf.sh`. (David Gumberg)
Pull request description:
In #31118, the format of bitcoind's `--help` output changed slightly in a way that breaks `gen-bitcoin-conf.sh`, modify the script to accommodate the new format, by starting after the line that says "Options:" and stripping the `-help` options and descriptions from the script output.
Before this PR, all options above `-help` were excluded from the example bitcoin.conf.
ACKs for top commit:
mabu44:
Tested ACK a24419f8be
glozow:
ACK a24419f8be
rkrux:
tACK a24419f8be
BrandonOdiwuor:
crACK a24419f8be
Tree-SHA512: 2ef697166d0b37b61ec1a20e357b91d611c932a0e453c4669f74ab69e6310ea1776dce09c1b77e82746072265763cb0c750e6df4c8b4a7d39068fc03f97b221b
e5ff4e416e qa: use a clearer and documented amount error in malleated snapshot (Antoine Poinsot)
b34fdb5ade test: introduce output amount (de)compression routines (Sebastian Falbesoner)
a7911ed101 test: introduce VARINT (de)serialization routines (Sebastian Falbesoner)
Pull request description:
The `feature_assumeutxo.py` functional test checks various errors with malleated snapshots. Some of these cases are brittle or use confusing and undocumented values. Fix one of those by using a clear, documented and forward-compatible value.
I ran across those when working on an unrelated changeset which affected the snapshot. It took me a while to understand where the seemingly magic byte string was coming from, so i figured it was worth proposing this patch on its own for the sake of making the test more maintainable.
See commit messages for details.
ACKs for top commit:
janb84:
re ACK [e5ff4e4](e5ff4e416e)
theStack:
ACK e5ff4e416e
fjahr:
Code review ACK e5ff4e416e
i-am-yuvi:
tACK e5ff4e416e
Tree-SHA512: 60f022b7176836ce05e8f287b436329d7ca6460f3fcd95f78cd24e07a95a7d4d9cbbb68a117916a113fe451732b09a012d300fe860ff33d61823eca797ceddaf
11f8ab140f test: wallet, coverage for crash on dup block disconnection during unclean shutdown (Martin Zumsande)
9ef429b6ae wallet: fix crash on double block disconnection (furszy)
Pull request description:
The wallet crashes if it processes the same block disconnection event twice in a row due
to an incompatible coinbase transaction state.
This happens because `disconnectBlock` provides `TxStateInactive` without the "abandoned"
flag for coinbase transactions to `SyncTransaction`, while `AddToWallet()` internally modifies
it to retain the abandoned state.
The crash flow is as follows:
1) On the first disconnection, the transaction state transitions from "confirmed" to
"inactive," bypassing the state equality check since the provided state differs. Then,
`AddToWallet` internally updates the state to "inactive + abandoned"
2) On the second disconnection, as we provide only the "inactive" state
to `SyncTransaction()`, the state equality assertion fails and crashes the wallet.
Reviewers Note:
The crash can easily be replicated by cherry-picking the test commit in master.
ACKs for top commit:
mzumsande:
Code Review ACK 11f8ab140f
rkrux:
ACK 11f8ab140f
pinheadmz:
ACK 11f8ab140f
Tree-SHA512: 971069bca562f0afb06c34a2516842d01b5cbc2b18ed851392aa3caa3bb7488f4a84a5d017ea334e6361261d3c44aa597cc67a1d4fa16781f85e081f3d1f8771
de1ada079b doc: Adjust path in comment (Hennadii Stepanov)
Pull request description:
It was overlooked in bitcoin/bitcoin#31161.
ACKs for top commit:
l0rinc:
utACK de1ada079b
dergoegge:
ACK de1ada079b
Tree-SHA512: ea2b858f9c6520a71a3e14a3877ad38acfcddee6ee4aad5fa8fc1c08a0589d9d4df9b5fdbae834bd03bbb956f8b52fdd2b35144fe0bf943bc9455ed6c3fc1c80
893ca54585 contrib: Fix deterministic-unittest-coverage tool path (janb84)
Pull request description:
Fix for the tooling introduced/modified in #31901 but the tool path is broken due to silent merge conflict introduced by #31161.
The `deterministic-unittest-coverage` and `deterministic-fuzz-coverage` tools uses the `fuzz` and `test_bitcoind` binaries, for which the location was modified in #31161. This patch updates the location to align with that change.
ACKs for top commit:
maflcko:
lgtm ACK 893ca54585
hebasto:
ACK 893ca54585, I have reviewed the code and it looks OK.
Tree-SHA512: efd5a75b607a6a7889333674b9a1fccf30b6a80bb2aa941f9dcc10b2e0b6158d8c870d58aa76cef2a0280782570400730828d6a4aaf806b83959e9f4bc7313f4
fa21597064 ci: Revert "Temporary workaround for old CCACHE_DIR cirrus env" (MarcoFalke)
Pull request description:
Seems fine to revert this now. If this still happens it should be rare enough and trivial to fix via a new push (normal push, force-push, rebase, ...), or to just ignore the failure.
ACKs for top commit:
fanquake:
ACK fa21597064
Tree-SHA512: 125946dcd4025b04f11276e1df1e0f1b361fc2deed2e3919d680d58df97e6d82881b21c0c683142df6995226b4c12b2dde5415ad78474b8fcda115cc69fa0207
1ef22ce335 depends: patch around PlacementNew issue in capnp (fanquake)
Pull request description:
See #31772 and https://github.com/capnproto/capnproto/pull/2235.
Given there isn't agreement in #29796, pulled this out so it could be merged separately, and it's easier to run different test configurations externally.
Closes#31772.
ACKs for top commit:
ryanofsky:
Code review ACK 1ef22ce335. Confirmed patch is identical to one merged upstream. Only change since last review was tweaking the file paths and commit data in the patch.
TheCharlatan:
ACK 1ef22ce335
Tree-SHA512: 9c9ecf50c43cf74315f6659afab55aeafb436f70e83b328016ad574136dce46867220c6e1a85aefd8d3d3d027cd94cc807c79721a4983da9428de70f11224e52
In #31118, the format of bitcoind's `--help` output changed slightly in
a way that breaks `gen-bitcoin-conf.sh`, modify the script to accomodate
the new format, by starting after the line that says "Options:" and
strip the `-help` option and its description from the output.
18e83534ac wallet: Replace "non-0" with "non-zero" in translatable error message (Hennadii Stepanov)
Pull request description:
Transifex interprets the "-0" substring as a number in translatable strings. Since not all translations preserve "-0," this triggers a corresponding warning. While this warning could be disabled globally, it is more reasonable to adjust the original string instead.
ACKs for top commit:
davidgumberg:
ACK 18e83534ac
l0rinc:
ACK 18e83534ac
1440000bytes:
ACK 18e83534ac
BrandonOdiwuor:
Code Review ACK 18e83534ac
laanwj:
Code review ACK 18e83534ac
Tree-SHA512: 5c38cfc4b352dbbcc8de5fb907cf988a77a7ecded7a90fe0517bfb9e4cd5097bdeb1aa6edf5d9ca37de54d1d7939d5e49533ec93c403db90d9169ad7732e5124
cadbd4137d miner: have waitNext return after 20 min on testnet (Sjors Provoost)
d4020f502a Add waitNext() to BlockTemplate interface (Sjors Provoost)
Pull request description:
This PR introduces `waitNext()`. It waits for either the tip to update or for fees at the top of the mempool to rise sufficiently. It then returns a new template, with which the caller can rinse and repeat.
On testnet3 and testnet4 the difficulty drops after 20 minutes, so the second ensures that a new template is returned in that case.
Alternative approach to #31003, suggested in https://github.com/bitcoin/bitcoin/issues/31109#issuecomment-2451942362
ACKs for top commit:
ryanofsky:
Code review ACK cadbd4137d. Main change since last review is adding back a missing `m_interrupt` check in the waitNext loop. Also made various code cleanups in both commits.
ismaelsadeeq:
Code review ACK cadbd4137d
vasild:
ACK cadbd4137d
Tree-SHA512: c5a40053723c1c1674449ba1e4675718229a2022c8b0a4853b12a2c9180beb87536a1f99fde969a0ef099bca9ac69ca14ea4f399d277d2db7f556465ce47de95
