Files
bitcoin/src/interfaces
Sjors Provoost dc4a5d1270 refactor: use PSBTFillOptions for filling and signing
Replace the sign, finalize , bip32derivs and sighash_type arguments which
are passed to FillPSBT() and SignPSBTInput() with a PSBTFillOptions struct.

This makes it easier to add additional options later without large code
churn, such as avoid_script_path proposed in #32857. It also makes the
use of default boolean options safer compared to positional arguments
that can easily get mixed up.
2026-04-28 17:43:03 +02:00
..
2026-02-27 19:26:08 -04:00

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 & stop Chain clients. Added in #14437.

  • Node — used by GUI to start & stop bitcoin node. Added in #10244.

  • Wallet — used by GUI to access wallets. Added in #10244.

  • Handler — returned by handleEvent methods on interfaces above and used to manage lifetimes of event handlers.

  • Init — used by multiprocess code to access interfaces above on startup. Added in #19160.

  • Ipc — used by multiprocess code to access Init interface across processes. Added in #19160.

  • Rpc — used by bitcoin-cli to be able to call RPC methods over a unix socket instead of TCP.

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.