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docs/trivial: update diagram to reflect changes to KeysInterface #3351

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50 changes: 26 additions & 24 deletions ARCH.md
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,9 @@ monitoring for liveness of peers, routing messages to `ChannelManager` and `P2PG
instances directly, and receiving messages from them via the `EventsProvider` interface.

These structs communicate with each other using a public API, so that you can easily add
a proxy in between for special handling. Further, APIs for key generation, transaction
broadcasting, block fetching, and fee estimation must be implemented and the data
provided by you, the user.
a proxy in between for special handling. Further, APIs for key generation, entropy source,
transaction broadcasting, block fetching, and fee estimation must be implemented and the
data provided by you, the user.

The library does not rely on the presence of a runtime environment outside of access to
heap, atomic integers, and basic Mutex primitives. This means the library will never
Expand All @@ -31,28 +31,30 @@ block time for current time knowledge.

At a high level, some of the common interfaces fit together as follows:


```

-----------------
| KeysInterface | --------------
----------------- | UserConfig |
-------------------- ^ --------------
------| MessageSendEvent | | ^ ----------------
/ -------------------- | | | FeeEstimator | <-----------------------
| (as MessageSendEventsProvider) | | ---------------- \
| ^ | | ^ ------------------------ |
| \ | | / ---------> | BroadcasterInterface | |
| \ | | / / ------------------------ |
| \ | | / / ^ |
| (as ------------------ ---------------- | |
| ChannelMessageHandler)-> | ChannelManager | ----> | chain::Watch | | |
v / ------------------ ---------------- | |
--------------- / (as EventsProvider) ^ | |
| PeerManager |- \ | | |
--------------- \ | (is-a) | |
| -------------- \ _---------------- / /
| | UtxoLookup | \ / | ChainMonitor |---------------
------------------ --------------
| SignerProvider | | NodeSigner |
------------------ --------------
----------------- ^ ^ --------------
| EntropySource | <---- \ / ----> | UserConfig |
----------------- \ | | / --------------
| | | |
-------------------- | | | | ----------------
------| MessageSendEvent | | | | | | FeeEstimator | <----------------
/ -------------------- | | | | ---------------- \
| (as MessageSendEventsProvider) | | | | ^ |
| ^ | | | | / ----------------------- |
| \ | | | | / ----> | BroadcasterInterface | |
| \ | | | | / / ----------------------- |
| \ | | | | / / ^ |
| (as ------------------ ---------------- | |
| ChannelMessageHandler)-> | ChannelManager | ----> | chain::Watch | | |
v / ------------------ ---------------- | |
--------------- / (as EventsProvider) ^ | |
| PeerManager |- \ | | |
--------------- \ | (is-a) / |
| -------------- \ _---------------- /
| | UtxoLookup | \ / | ChainMonitor |------------
| -------------- \ / ----------------
| ^ \ / |
(as RoutingMessageHandler) | v v
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