71c06c5cbc
b9d573e4a9fees: Return false for incompatible fee estimates (Hao Xu) Pull request description: policy_estimator_io deliberately reuses a CBlockPolicyEstimator because constructing one for every fuzz input severely reduces throughput. However, Read() returns true for an incompatible old fee estimates file without replacing the estimator state. The target then calls Write() with state loaded by a previous input, making coverage depend on corpus order. Return false for incompatible files so the target skips Write() when no state was loaded. This keeps the estimator reuse optimization instead of resetting the expensive object before every fuzz input. For the in-tree production caller, incompatible files remain non-fatal and the estimator still starts from its default state. Read() now reports failure, so startup emits one additional non-fatal warning. Node startup and estimator state are unchanged, as is RPC behavior. ACKs for top commit: maflcko: review ACKb9d573e4a9📩 sedited: ACKb9d573e4a9Tree-SHA512: d6ec5986122716ad2c6fb5305626aec71b4b416242791547a12f86fb210d768c87fcb9615fd50259908656766bbe085d55ae90e1d72eaee24d438eecfd9c6dd4
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
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(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.
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(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
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Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.