Within the reworked design of the `OutputSlot` a proxy implementation
of the `BufferProvider` API is used (class `OutputBufferProxy`).
After analysis of the invocation patterns, I concluded that it seems adequate
to attach the special-purpose metadata generated by this integration
to the generic system of thread-local replicated `BufferMetadata` storage.
However, since thread-local instances are effectively static(global),
I was concerned that unit-testing might be impeded by accumulation of
stale metadata in the store linked to the main thread. Thus I created
a special configuration variant to retain the previously used setup
for the sake of unit testing (which applies especially to use of the
`DiagnosticOutputSlot`). Using a `SimpleBufferStateRegistry` for in
that case has the benefit that simply a local instance can be used
in the test and all metadata will be discarded afterwards.
Furthermore the factory syntax for obtaining an `OutputSlot` was improved,
drawing on the recent changes to `lib::ScopedCollection`.
Also I looked through some of the documentation and updated
the UML sequence diagram to reflect `OutputSlot`'s improved internal structure
...which still looks like a nasty task
* the good part is, we have a working `BufferProxyAdaptor` now
* yet this setup does not seem to fit into the `OutputSlot::AllocState`
As an aside, several test definitions need to be relocated to the Vault,
since the whole compound around `BufferProvider` migrated down
2026-03-17 00:48:08 +01:00
Renamed from tests/vault/mem/output-proxy-provider-test.cpp (Browse further)
