[PATCH] D48051: LTO: Work around a Windows kernel bug by keeping file handles open for memory mapped files.

[Peter Collingbourne via Phabricator via llvm-commits]

pcc added a comment.

In https://reviews.llvm.org/D48051#1129090, @zturner wrote:

> Do we have any kind of guarantee that one entity will outlive all other entities that may attempt to share the file?


I don't think so, basically the process that creates a cache entry could exit at any time before or after any processes that might read the cache entry.


https://reviews.llvm.org/D48051