794a8cec5d
After each transaction which is added to mempool, we first call Expire() to remove old transactions, then throwing away the lowest-feerate transactions. After throwing away transactions by feerate, we set the minimum relay fee to the maximum fee transaction-and-dependant-set we removed, plus the default minimum relay fee. After the next block is received, the minimum relay fee is allowed to decrease exponentially. Its halflife defaults to 12 hours, but is decreased to 6 hours if the mempool is smaller than half its maximum size, and 3 hours if the mempool is smaller than a quarter its maximum size. The minimum -maxmempool size is 40*-limitdescendantsize, as it is easy for an attacker to play games with the cheapest -limitdescendantsize transactions. -maxmempool defaults to 300MB. This disables high-priority transaction relay when the min relay fee adjustment is >0 (ie when the mempool is full). When the relay fee adjustment drops below the default minimum relay fee / 2 it is set to 0 (re-enabling priority-based free relay). |
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|---|---|---|
| .tx | ||
| build-aux/m4 | ||
| contrib | ||
| depends | ||
| doc | ||
| qa | ||
| share | ||
| src | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| autogen.sh | ||
| configure.ac | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| INSTALL | ||
| libbitcoinconsensus.pc.in | ||
| Makefile.am | ||
| README.md | ||
Bitcoin Core integration/staging tree
What is Bitcoin?
Bitcoin is an experimental new 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 useable, binary version of the Bitcoin Core software, see https://www.bitcoin.org/en/download.
License
Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see http://opensource.org/licenses/MIT.
Development Process
The master branch is regularly built and tested, but is not guaranteed to be
completely stable. Tags are created
regularly to indicate new official, stable release versions of Bitcoin Core.
The contribution workflow is described in CONTRIBUTING.md.
The developer mailing list should be used to discuss complicated or controversial changes before working on a patch set.
Developer IRC can be found on Freenode at #bitcoin-core-dev.
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
There are also regression and integration tests of the RPC interface, written
in Python, that are run automatically on the build server.
These tests can be run with: qa/pull-tester/rpc-tests.py
Every pull request is built for both Windows and Linux on a dedicated server, and unit and sanity tests are automatically run. The binaries produced may be used for manual QA testing — a link to them will appear in a comment on the pull request posted by BitcoinPullTester. See https://github.com/TheBlueMatt/test-scripts for the build/test scripts.
Manual Quality Assurance (QA) Testing
Large changes should have a test plan, and should be tested by somebody other than the developer who wrote the code. See https://github.com/bitcoin/QA/ for how to create a test plan.
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.