Merge bitcoin/bitcoin#23005: multiprocess: Delay wallet client construction

ad085f9ba15c131fc5cc77086a620f2e366aac7c multiprocess: Delay wallet client construction (Russell Yanofsky)

Pull request description:

  Delay wallet client construction until after logging, thread and other init for two reasons:

  - More responsive multiprocess GUI startup. When bitcoin-gui is started this moves the call from bitcoin-gui to bitcoin-node that spawns bitcoin-wallet off of the GUI event thread and onto the background GUI init executor thread.

  - Avoids feature_logging.py test failures with bitcoin-node by making bitcoin-wallet logging start after bitcoin-node logging starts,
    because the tests are not written to handle the bitcoin-wallet logging init code running first.

  This partially reverts commit b266b3e0bf29d0f3d5deaeec62d57c5025b35525, moving wallet client creation back to the place it was located before.

  ---

  This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/projects/10).

ACKs for top commit:
  laanwj:
    code review ACK ad085f9ba15c131fc5cc77086a620f2e366aac7c
  hebasto:
    ACK ad085f9ba15c131fc5cc77086a620f2e366aac7c, I have reviewed the code and it looks OK.

Tree-SHA512: 74d957ce2ee096db745c517124f60800185814b06c20db676090e10dce1b90311adbab02865a69731f8c39b9365f9ee14be0830ca1368cac9b474801ea92bad5

1 files changed, 4 insertions, 0 deletions

diff --git a/src/node/interfaces.cpp b/src/node/interfaces.cpp
index 9b4ba8eb97..9f457570fa 100644
--- a/src/node/interfaces.cpp
+++ b/src/node/interfaces.cpp
@@ -296,6 +296,10 @@ public:
     {
         return MakeHandler(::uiInterface.ShowProgress_connect(fn));
     }
+    std::unique_ptr<Handler> handleInitWallet(InitWalletFn fn) override
+    {
+        return MakeHandler(::uiInterface.InitWallet_connect(fn));
+    }
     std::unique_ptr<Handler> handleNotifyNumConnectionsChanged(NotifyNumConnectionsChangedFn fn) override
     {
         return MakeHandler(::uiInterface.NotifyNumConnectionsChanged_connect(fn));