Ichthyostega 2c8ee05a23 OutputSlot: validate and complete redesign (see #1395) ...

''This is a breakthrough...''
Using the realigned implementation structure in `BufferProvider`,
and especially the ability to establish an overarching context by
passing an connection-ID through the `LocalTag` in the `BufferMetadata`,
it was possible to resolve the longstanding mismatch buried deep within
the `OutputSlot` implementation.

Based on the new internal APIs in `BufferProvider`, it was thus possible
to setup an `OututBufferProxy` that acts as a hub to connect the
`DataSink` handles with the actual `OutputSlot::Connection` implementation.
This change allowed to rectify the convoluted control structure in
`OutputSlot` and finally to manage the Lifecycle properly. Furthermore,
one level of unnecessary implementation-inheritance could be removed,
so that it is no longer necessary to subclass `OutputSlot` in order to
configure the link to a specific output backend.

Using this redesigned internal structure, it was now fairly simple to
re-implement a tracking `DiagnosticOutputSlot` and then to verify proper
integration by passing the `OutputSlotProtocol_test` again.

2026-04-11 01:45:15 +02:00

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