EGL Multifile Blobcache: Handle lost cache
During execution, if the app's cache is cleared from outside
our control, two issues occur:
* New entries won't persist to disk because the multifile directory
is missing.
* applyLRU will abort eviction, allowing entries beyond the limits.
To address this, this CL:
* Adds missing directory detection to our deferred write thread
which then attempts to recreate it and continue.
* Updates eviction to issue a warning rather than abort so it can
update tracking and continue.
For missing entries, the app will get hits from hotcache, but
anything beyond that will become a miss.
Additional tests:
* RecoverFromLostCache
* EvictAfterLostCache
Based on work by: Igor Nazarov <i.nazarov@samsung.com>
Test: libEGL_test, EGL_test, ANGLE trace tests, apps
Bug: b/351867582, b/380483358
Flag: com.android.graphics.egl.flags.multifile_blobcache_advanced_usage
Change-Id: I13c8cdf58c957163eed4498c0d4be180574bf03e
2 files changed