cca91c48c7
ef72e9bd4124645fe2d00521a71c1c298d760225 doc: nChainTx needs to become a 64-bit earlier due to SegWit (Sjors Provoost) Pull request description: As of block 597,379 txcount is 460,596,047 (see `chainparams.cpp`), while `uint32` can handle up to 4,294,967,296. Pre segwit the [minimum transaction size](https://en.bitcoin.it/wiki/Maximum_transaction_rate) was 166 bytes, so the worst case number of transactions per block was ~6000. As the original source comment for `unsigned int nChainTx` says, that should last until the year 2030. With SegWit the smallest possible transaction is 60 bytes (potentially increased to 65 with a future soft fork, see #15482), without a witness: ``` 4 bytes version 1 byte input count 36 bytes outpoint 1 byte scriptSigLen (0x00) 0 bytes scriptSig 4 bytes sequence 1 byte output count 8 bytes value 1 byte scriptPubKeyLen 1 byte scriptPubKey (OP_TRUE) 4 bytes locktime ``` That puts the maximum number of transactions per block at 16,666 so we might have to deal with this as early as a block 827,450 in early 2024. Given that it's a memory-only thing and we want to allow users many years to upgrade, I would suggest fixing this in v0.20 and back-porting it. ACKs for top commit: practicalswift: re-ACK ef72e9bd4124645fe2d00521a71c1c298d760225 jarolrod: ACK ef72e9bd4124645fe2d00521a71c1c298d760225 theStack: ACK ef72e9bd4124645fe2d00521a71c1c298d760225 Tree-SHA512: d8509ba7641796cd82af156354ff3a12ff7ec0f7b11215edff6696e95f8ca0e3596f719f3492ac3acb4b0884ac4e5bddc76f107b656bc2ed95a8ef1b2b5d4f71 |
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| depends | ||
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| share | ||
| src | ||
| test | ||
| .cirrus.yml | ||
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| configure.ac | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| INSTALL.md | ||
| libdashconsensus.pc.in | ||
| Makefile.am | ||
| README.md | ||
| SECURITY.md | ||
Dash Core staging tree 18.0
| CI | master | develop |
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| 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 the doc folder.
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 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.
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 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.