ddefb5c0b759950942ac03f28c43b548af7b4033 p2p: Use the greatest common version in peer logic (Hennadii Stepanov) e084d45562b94827b3a7873895882fcaae9f4d48 p2p: Remove SetCommonVersion() from VERACK handler (Hennadii Stepanov) 8d2026796a6f7add0c2cda9806e759817d1eae6f refactor: Rename local variable nSendVersion (Hennadii Stepanov) e9a6d8b13b0558b17cdafbd32fd2663b4138ff11 p2p: Unify Send and Receive protocol versions (Hennadii Stepanov) Pull request description: On master (6fef85bfa3cd7f76e83b8b57f9e4acd63eb664ec) `CNode` has two members to keep protocol version: - `nRecvVersion` for received messages - `nSendVersion` for messages to send After exchanging with `VERSION` and `VERACK` messages via protocol version `INIT_PROTO_VERSION`, both nodes set `nRecvVersion` _and_ `nSendVersion` to _the same_ value which is the greatest common protocol version. This PR: - replaces two `CNode` members, `nRecvVersion` `nSendVersion`, with `m_greatest_common_version` - removes duplicated getter and setter There is no change in behavior on the P2P network. ACKs for top commit: jnewbery: ACK ddefb5c0b759950942ac03f28c43b548af7b4033 naumenkogs: ACK ddefb5c0b759950942ac03f28c43b548af7b4033 fjahr: Code review ACK ddefb5c0b759950942ac03f28c43b548af7b4033 amitiuttarwar: code review but untested ACK ddefb5c0b7 benthecarman: utACK `ddefb5c` Tree-SHA512: 5305538dbaa5426b923b0afd20bdef4f248d310855d1d78427210c00716c67b7cb691515c421716b6157913e453076e293b10ff5fd2cd26a8e5375d42da7809d
Bitcoin Core integration/staging tree
What is Bitcoin?
Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.
For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.
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 in configure) with: make check
. 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, that are run automatically on the build server.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
The Travis CI system makes 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.
Translators should also subscribe to the mailing list.