fanquake f7c73b03d9
Merge #19569: Enable fetching of orphan parents from wtxid peers
10b7a6d532148f880568c529e61a6d7edc7c91a9 refactor: make txmempool interface use GenTxid (Pieter Wuille)
5c124e17407a5b5824fec062b73a03a1030fa28c refactor: make FindTxForGetData use GenTxid (Pieter Wuille)
a2bfac893549e2d62708d8cda7071b4fe9750a2d refactor: use GenTxid in tx request functions (Pieter Wuille)
e65d115b725640eefb3bfa09786447816f7ca9cc test: request parents of orphan from wtxid relay peer (Anthony Towns)
900d7f6c075fd78e63503f31d267dbc16b3983d9 p2p: enable fetching of orphans from wtxid peers (Pieter Wuille)
9efd86a908cf09d9ddbadd3195f202635117d505 refactor: add GenTxid (=txid or wtxid) type and use it for tx request logic (Pieter Wuille)
d362f19355b36531a4a82094e0259f7f3db500a7 doc: list support for BIP 339 in doc/bips.md (Pieter Wuille)

Pull request description:

  This is based on https://github.com/bitcoin/bitcoin/pull/18044#discussion_r450687076.

  A new type `GenTxid` is added to protocol.h, which represents a tagged txid-or-wtxid. The tx request logic is updated to use these instead of uint256s, permitting per-announcement distinguishing of txid/wtxid (instead of assuming that everything we want to request from a wtxid peer is wtx). Then the restriction of orphan-parent requesting to non-wtxid peers is lifted.

  Also document BIP339 in doc/bips.md.

ACKs for top commit:
  jnewbery:
    Code review ACK 10b7a6d532148f880568c529e61a6d7edc7c91a9
  jonatack:
    ACK 10b7a6d532148f880568c529e61a6d7edc7c91a9
  ajtowns:
    ACK 10b7a6d532148f880568c529e61a6d7edc7c91a9 -- code review. Using gtxid to replace the is_txid_or_wtxid flag for the mempool functions is nice.
  naumenkogs:
    utACK 10b7a6d

Tree-SHA512: d518d13ffd71f8d2b3c175dc905362a7259689e6022a97a0b4f14f1f9fdd87475cf5af70cb12338d1e5d31b52c12e4faaea436114056a2ae9669cb506240758b
2020-07-31 19:52:18 +08:00

Bitcoin Core integration/staging tree

https://bitcoincore.org

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.

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