ccac35c89c
f9cd2bfbccb7a2b8ff07cec5f6d2adbeca5f07c3 Rename CoinSelectionParams::effective_fee to m_effective_feerate (Andrew Chow) bdd0c2934b7f389ffcfae3b602ee3ecee8581acd wallet: Move discard feerate fetching to CreateTransaction (Andrew Chow) 448d04b931f86941903e855f831249ff5ec77485 wallet: Move long term feerate setting to CreateTransaction (Andrew Chow) e2f429e6bbf7098f278c0247b954ecd3ba53cf37 wallet: Replace nFeeRateNeeded with effective_fee (Andrew Chow) 1a6a0b0dfb90f9ebd4b86d7934c6aa5594974f5f wallet: Use existing feerate instead of getting a new one (Andrew Chow) Pull request description: During coin selection, there are various places where we need to have a feerate. We need the feerate for the transaction itself, the discard fee rate, and long term feerate. Fetching these each time we need them can lead to a race condition where two feerates that should be the same are actually different. One particular instance where this can happen is during the loop in `CreateTransactionInternal`. After inputs are chosen, the expected transaction fee is calculated using a newly fetched feerate. If `pick_new_inputs == false`, the loop will go again with the assumption that the fee for the transaction remains the same. However because the feerate is fetched again, it is possible that it actually isn't and this causes coin selection to fail. Instead of fetching the feerate each time it is needed, we fetch them all at once at the top of `CreateTransactionInternal`, store them in `CoinSelectionParams`, and use them where needed. While some of these fee rates probably don't need this caching, I've done it for consistency and the guarantee that they remain the same. Fixes #19229 ACKs for top commit: glozow: reACK |
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| .tx | ||
| build-aux/m4 | ||
| ci | ||
| contrib | ||
| depends | ||
| doc | ||
| share | ||
| src | ||
| test | ||
| .cirrus.yml | ||
| .dockerignore | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .python-version | ||
| .style.yapf | ||
| autogen.sh | ||
| CMakeLists.txt | ||
| configure.ac | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| INSTALL.md | ||
| libdashconsensus.pc.in | ||
| Makefile.am | ||
| README.md | ||
| SECURITY.md | ||
Dash Core staging tree
| CI | master | develop |
|---|---|---|
| Gitlab |  |
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For an immediately usable, binary version of the Dash Core software, see https://www.dash.org/downloads/.
Further information about Dash Core is available in ./doc/.
What is Dash?
Dash is an experimental digital currency that enables instant, private payments to anyone, anywhere in the world. Dash uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Dash Core is the name of the open source software which enables the use of this currency.
For more information read the original Dash whitepaper.
License
Dash 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 meant to be stable. Development is normally done in separate branches.
Tags are created to indicate new official,
stable release versions of Dash Core.
The develop branch is regularly built (see doc/build-*.md for instructions) and tested, but is not guaranteed to be
completely stable.
The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.
Build / Compile from Source
The ./configure, make, and cmake steps, as well as build dependencies, are in ./doc/ as well:
- Linux: ./doc/build-unix.md
Ubuntu, Debian, Fedora, Arch, and others - macOS: ./doc/build-osx.md
- Windows: ./doc/build-windows.md
- OpenBSD: ./doc/build-openbsd.md
- FreeBSD: ./doc/build-freebsd.md
- NetBSD: ./doc/build-netbsd.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.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
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 Dash 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.