242b0ebb5cbtcsignals: use a single shared_ptr for liveness and callback (Cory Fields)b12f43a0a8signals: remove boost::signals2 from depends and vcpkg (Cory Fields)a4b1607983signals: remove boost::signals2 mentions in linters and docs (Cory Fields)375397ebd9signals: remove boost includes where possible (Cory Fields)091736a153signals: re-add forward-declares to interface headers (Cory Fields)9958f4fe49Revert "signals: Temporarily add boost headers to bitcoind and bitcoin-node builds" (Cory Fields)34eabd77a2signals: remove boost compatibility guards (Cory Fields)e60a0b9a22signals: Add a simplified boost-compatible implementation (Cory Fields)63c68e2a3fsignals: add signals tests (Cory Fields)edc2978058signals: use an alias for the boost::signals2 namespace (Cory Fields)9ade3929aasignals: remove forward-declare for signals (Cory Fields)037e58b57bsignals: use forwarding header for boost signals (Cory Fields)2150153f37signals: Temporarily add boost headers to bitcoind and bitcoin-node builds (Cory Fields)fd5e9d9904signals: Use a lambda to avoid connecting a signal to another signal (Cory Fields) Pull request description: This drops our dependency on `boost::signals2`, leaving `boost::multi_index` as the only remaining boost dependency for bitcoind. `boost::signals2` is a complex beast, but we only use a small portion of it. Namely: it's a way for multiple subscribers to connect to the same event, and the ability to later disconnect individual subscribers from that event. `btcsignals` adheres to the subset of the `boost::signals2` API that we currently use, and thus is a drop-in replacement. Rather than implementing a complex `slot` tracking class that we never used anyway (and which was much more useful in the days before std::function existed), callbacks are simply wrapped directly in `std::function`s. The new tests work with either `boost::signals2` or the new `btcsignals` implementation. Reviewers can verify functional equivalency by running the tests in the commit that introduces them against `boost::signals2`, then again with `btcsignals`. The majority of the commits in this PR are preparation and cleanup. Once `boost::signals2` is no longer needed, it is removed from depends. Additionally, a few CMake targets no longer need boost includes as they were previously only required for signals. I think this is actually pretty straightforward to review. I kept things simple, including keeping types unmovable/uncopyable where possible rather than trying to define those semantics. In doing so, the new implementation has even fewer type requirements than boost, which I believe is due to a boost bug. I've opened a PR upstream for that to attempt to maintain parity between the implementations. See individual commits for more details. Closes #26442. ACKs for top commit: fjahr: Code review ACK242b0ebb5cmaflcko: re-review ACK242b0ebb5c🎯 w0xlt: reACK242b0ebb5cTree-SHA512: 9a472afa4f655624fa44493774a63b57509ad30fb61bf1d89b6d0b52000cb9a1409a5b8d515a99c76e0b26b2437c30508206c29a7dd44ea96eb1979d572cd4d4
Bitcoin Core
Setup
Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions, which requires several hundred gigabytes or more of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to several days or more.
To download Bitcoin Core, visit bitcoincore.org.
Running
The following are some helpful notes on how to run Bitcoin Core on your native platform.
Unix
Unpack the files into a directory and run:
bin/bitcoin-qt(GUI) orbin/bitcoind(headless)bin/bitcoin(wrapper command)
The bitcoin command supports subcommands like bitcoin gui, bitcoin node, and bitcoin rpc exposing different functionality. Subcommands can be listed with bitcoin help.
Windows
Unpack the files into a directory, and then run bitcoin-qt.exe.
macOS
Drag Bitcoin Core to your applications folder, and then run Bitcoin Core.
Need Help?
- See the documentation at the Bitcoin Wiki for help and more information.
- Ask for help on Bitcoin StackExchange.
- Ask for help on #bitcoin on Libera Chat. If you don't have an IRC client, you can use web.libera.chat.
- Ask for help on the BitcoinTalk forums, in the Technical Support board.
Building
The following are developer notes on how to build Bitcoin Core on your native platform. They are not complete guides, but include notes on the necessary libraries, compile flags, etc.
- Dependencies
- macOS Build Notes
- Unix Build Notes
- Windows Build Notes
- FreeBSD Build Notes
- OpenBSD Build Notes
- NetBSD Build Notes
Development
The Bitcoin repo's root README contains relevant information on the development process and automated testing.
- Developer Notes
- Productivity Notes
- Release Process
- Source Code Documentation (External Link)
- Translation Process
- Translation Strings Policy
- JSON-RPC Interface
- Unauthenticated REST Interface
- BIPS
- Dnsseed Policy
- Benchmarking
- Internal Design Docs
Resources
- Discuss on the BitcoinTalk forums, in the Development & Technical Discussion board.
- Discuss project-specific development on #bitcoin-core-dev on Libera Chat. If you don't have an IRC client, you can use web.libera.chat.
Miscellaneous
- Assets Attribution
- bitcoin.conf Configuration File
- CJDNS Support
- Files
- Fuzz-testing
- I2P Support
- Init Scripts (systemd/upstart/openrc)
- Managing Wallets
- Multisig Tutorial
- Offline Signing Tutorial
- P2P bad ports definition and list
- PSBT support
- Reduce Memory
- Reduce Traffic
- Tor Support
- Transaction Relay Policy
- ZMQ
License
Distributed under the MIT software license.