[PATCH] D53560: [XRay] Refcount backing store for buffers

[Dean Michael Berris via Phabricator via llvm-commits]

dberris created this revision.
dberris added reviewers: mboerger, eizan.
Herald added a subscriber: jfb.

This change implements the ref-counting for backing stores associated
with generational buffer management. We do this as an implementation
detail of the buffer queue, instead of exposing this to the interface.

This change allows us to keep the buffer queue interface and usage model
the same.


https://reviews.llvm.org/D53560

Files:
  compiler-rt/lib/xray/xray_buffer_queue.cc
  compiler-rt/lib/xray/xray_buffer_queue.h

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