don't rely on weakref being null, fix blobcache

tanmaykm / Blobs.jl

Facilitate distributed out of core computation over blobs of data.

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Closed tanmaykm closed 8 years ago

tanmaykm commented 8 years ago

Checking weakref value to be null as an indicator of gc is not reliable. We probably need a finalizer for that, but all finalizers don't get called immediately at the moment (ref: https://github.com/JuliaLang/julia/pull/13995). Going without that optimization for now.
fixed an issue where cache eviction was corrupting the cache