ec5edcd72b
6b0a907302Squashed 'src/ipc/libmultiprocess/' changes from 3edbe8f67c1..16bf05dea02 (Ryan Ofsky) Pull request description: The changes can be verified by running `test/lint/git-subtree-check.sh src/ipc/libmultiprocess` as described in [developer notes](https://github.com/bitcoin/bitcoin/blob/master/doc/developer-notes.md#subtrees) and [lint instructions](https://github.com/bitcoin/bitcoin/tree/master/test/lint#git-subtree-checksh). Changes since last subtree update (#34977): - Adds `makePool` method on `ThreadMap` to support thread pool routing, allowing requests without a specific client thread to be dispatched to a pool using a shortest-queue strategy ([#283](https://github.com/bitcoin-core/libmultiprocess/pull/283)). - Adds `std::unordered_set` support, a `BuildList` helper, and a `ReadList` helper to reduce duplication in list build and read handlers ([#277](https://github.com/bitcoin-core/libmultiprocess/pull/277), [#285](https://github.com/bitcoin-core/libmultiprocess/pull/285)). - Adds support for translating C++ `std::optional<T>` struct fields to pairs of `T` + `hasT :Bool` Cap'n Proto struct fields, allowing unset optional primitive fields to be represented ([#243](https://github.com/bitcoin-core/libmultiprocess/pull/243)). - Produces more readable log output for Proxy object lifecycle events and IPC server-side failures ([#218](https://github.com/bitcoin-core/libmultiprocess/pull/218)). - Handles exceptions thrown by `destroy` methods by logging instead of aborting ([#273](https://github.com/bitcoin-core/libmultiprocess/pull/273)). This can prevent server crashes when non-libmultiprocess clients disconnect without destroying objects, in the case where a server object owns client objects and the server destructor tries to call the disconnected client to free them ([#219](https://github.com/bitcoin-core/libmultiprocess/issues/219)). - Handles unexpected exceptions thrown by callbacks (that should never happen) by logging errors instead of deadlocking ([#260](https://github.com/bitcoin-core/libmultiprocess/pull/260)). - Fixes a rare mptest hang on musl builds caused by a lost wakeup bug in `Waiter` ([#295](https://github.com/bitcoin-core/libmultiprocess/pull/295)). - Fixes a race condition in a log print detected by TSan ([#286](https://github.com/bitcoin-core/libmultiprocess/pull/286)). - Build improvements: makes `target_capnp_sources` work correctly when libmultiprocess is used as a CMake subproject ([#289](https://github.com/bitcoin-core/libmultiprocess/pull/289)), adds `mp_headers` target for better lint tool support ([#291](https://github.com/bitcoin-core/libmultiprocess/pull/291)), and fixes compatibility with recent Nix and CMake 4.0 ([#238](https://github.com/bitcoin-core/libmultiprocess/pull/238)). - Test, CI, documentation, and minor code improvements: design document corrections ([#278](https://github.com/bitcoin-core/libmultiprocess/pull/278)), field constant comments ([#279](https://github.com/bitcoin-core/libmultiprocess/pull/279)), clang-tidy fix ([#292](https://github.com/bitcoin-core/libmultiprocess/pull/292)), new smoke test for double-precision float values ([#294](https://github.com/bitcoin-core/libmultiprocess/pull/294)), new test for recursive async IPC calls ([#301](https://github.com/bitcoin-core/libmultiprocess/pull/301)), removal of libevent from Core CI builds ([#299](https://github.com/bitcoin-core/libmultiprocess/pull/299)), and rename of `EventLoop::m_num_clients` to `m_num_refs` ([#302](https://github.com/bitcoin-core/libmultiprocess/pull/302)). ACKs for top commit: fanquake: ACK02afa66169hebasto: ACK02afa66169. Tree-SHA512: ef81a951c971f328a0a98436030467eeea30925eb6016eafd9bc7a25726c87628a852bbb1d84b88bce340aeea2bed25c65bc55db1168ebcb850628cd18808883
Bitcoin Core integration/staging tree
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/license/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 tested on Windows, Linux, and macOS. The CI must pass on all commits before merge to avoid unrelated CI failures on new pull requests.
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.