9986608ba93de040490ee0d5584ea33e605f1df0 test: Verify findCommonAncestor always initializes outputs (Russell Yanofsky) Pull request description: Also add code comment to clarify surprising code noted by practicalswift https://github.com/bitcoin/bitcoin/pull/18657#issuecomment-614278450 ACKs for top commit: MarcoFalke: ACK 9986608ba93de040490ee0d5584ea33e605f1df0 jonatack: ACK 9986608ba93de04 modulo @practicalswift's https://github.com/bitcoin/bitcoin/pull/18660#issuecomment-614487724 Tree-SHA512: d79c910291d68b770ef4b09564d274c0e19a6acf43ef1a6691dc889e3944ab3462b86056eeb794fd0c6f2464cfad6cc00711a833f84b32079c69ef9b3c8da24c
Internal c++ interfaces
The following interfaces are defined here:
-
Chain— used by wallet to access blockchain and mempool state. Added in #14437, #14711, #15288, and #10973. -
ChainClient— used by node to start & stopChainclients. Added in #14437. -
Node— used by GUI to start & stop bitcoin node. Added in #10244. -
Handler— returned byhandleEventmethods on interfaces above and used to manage lifetimes of event handlers. -
Init— used by multiprocess code to access interfaces above on startup. Added in #10102.
The interfaces above define boundaries between major components of bitcoin code (node, wallet, and gui), making it possible for them to run in different processes, and be tested, developed, and understood independently. These interfaces are not currently designed to be stable or to be used externally.