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Hennadii Stepanov d2ac748e9e
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Merge bitcoin-core/gui#864: Crash fix, disconnect numBlocksChanged() signal during shutdown
71656bdfaa gui: crash fix, disconnect numBlocksChanged() signal during shutdown (furszy)

Pull request description:

  Aiming to fix bitcoin-core/gui#862.

  The crash stems from the order of the shutdown procedure:
  We first unset the client model, then destroy the wallet controller—but we leave
  the internal wallet models (`m_wallets`) untouched for a brief period. As a result,
  there’s a point in time where views still have connected signals and access to
  wallet models that are not connected to any wallet controller.
  Now.. since the `clientModel` is only replaced with nullptr locally and not destroyed
  yet, signals like `numBlocksChanged` can still emit. Thus, when wallet views receive
  them, they see a non-null wallet model ptr, and proceed to call backend functions
  from a model that is being torn down.

  As the shutdown procedure begins by unsetting `clientModel` from all views. It’s safe
  to ignore events when `clientModel` is nullptr.

ACKs for top commit:
  maflcko:
    lgtm ACK 71656bdfaa
  pablomartin4btc:
    re-ACK 71656bdfaa
  hebasto:
    ACK 71656bdfaa, I have reviewed the code and it looks OK.

Tree-SHA512: e6a369c40aad8a5a3da64e92daa10250006f60c53feef353a5580e1bdb17fe8e1ad102abf5419ddeff1caa703b69ab634265ef3b9cfef87e9304f97bfdd2c4aa
2025-04-26 13:45:31 +01:00
.github ci: re-enable all benchmark runs 2025-04-22 12:49:53 +02:00
.tx Update Transifex slug for 29.x 2025-02-06 09:38:49 +00:00
ci Merge bitcoin/bitcoin#32226: ci: switch to LLVM 20 in tidy job 2025-04-23 13:35:43 +01:00
cmake cmake: Fix clang-tidy "no input files" errors 2025-04-02 08:41:16 -05:00
contrib guix: Remove unused file package 2025-04-17 10:33:01 +01:00
depends Merge bitcoin/bitcoin#32215: depends: Fix cross-compiling on macOS 2025-04-25 10:15:04 +01:00
doc Merge bitcoin/bitcoin#32113: fuzz: enable running fuzz test cases in Debug mode 2025-04-22 22:00:59 -04:00
share build: Remove bitness suffix from Windows installer 2025-03-24 14:19:11 +00:00
src Merge bitcoin-core/gui#864: Crash fix, disconnect numBlocksChanged() signal during shutdown 2025-04-26 13:45:31 +01:00
test Merge bitcoin/bitcoin#31250: wallet: Disable creating and loading legacy wallets 2025-04-25 13:11:24 +01:00
.cirrus.yml ci: Move "Windows cross" job from Cirrus CI to GHA CI 2025-03-18 10:28:44 +00:00
.editorconfig code style: update .editorconfig file 2024-09-13 17:55:10 +02:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore gitignore: target/ 2025-02-18 20:46:30 +01:00
.python-version Bump python minimum supported version to 3.10 2024-08-28 15:53:07 +02:00
.style.yapf Update .style.yapf 2023-06-01 23:35:10 +05:30
CMakeLists.txt doc: Document WITH_EXTERNAL_LIBMULTIPROCESS build option better 2025-04-14 16:32:37 -04:00
CMakePresets.json scripted-diff: s/WITH_MULTIPROCESS/ENABLE_IPC/ in cmake 2025-04-02 08:41:16 -05:00
CONTRIBUTING.md doc: remove PR Review Club frequency 2024-11-20 11:16:39 +01:00
COPYING doc: upgrade license to 2025. 2025-01-06 12:23:11 +00:00
INSTALL.md doc: Added hyperlink for doc/build 2021-09-09 19:53:12 +05:30
libbitcoinkernel.pc.in build: use CLIENT_NAME in libbitcoinkernel.pc.in 2025-02-07 16:11:48 +00:00
README.md doc: cmake: prepend and explain "build/" where needed 2024-10-11 11:24:21 -06:00
SECURITY.md Update security.md contact for achow101 2023-12-14 18:14:54 -05:00
vcpkg.json build, msvc: Build only required qtbase features 2025-04-03 10:26:58 +01:00

Bitcoin Core integration/staging tree

https://bitcoincore.org

For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.

What is Bitcoin Core?

Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.

Further information about Bitcoin Core is available in the doc folder.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be completely stable. Tags are created regularly from release branches to indicate new official, stable release versions of Bitcoin Core.

The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled during the generation of the build system) with: ctest. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python. These tests can be run (if the test dependencies are installed) with: build/test/functional/test_runner.py (assuming build is your build directory).

The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.