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| author | bors <bors@rust-lang.org> | 2016-08-31 12:56:15 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2016-08-31 12:56:15 -0700 |
| commit | 2c01bb885108c436adae2006632ff6dfc0a5f2cd (patch) | |
| tree | 096e830596ea574c97955f2c2081974721399b96 /src/rustllvm/RustWrapper.cpp | |
| parent | 7a187c39c79e21cd61d1688d449bdd52d7510281 (diff) | |
| parent | bcd2f905c46158f9137fa5b63aafebcb60083385 (diff) | |
| download | rust-2c01bb885108c436adae2006632ff6dfc0a5f2cd.tar.gz rust-2c01bb885108c436adae2006632ff6dfc0a5f2cd.zip | |
Auto merge of #35718 - michaelwoerister:incr-comp-dir-locking, r=alexcrichton
Implement synchronization scheme for incr. comp. directory This PR implements a copy-on-write-based synchronization scheme for the incremental compilation cache directory. For technical details, see the documentation at the beginning of `rustc_incremental/persist/fs.rs`. The PR contains unit tests for some functions but for testing whether the scheme properly handles races, a more elaborate test setup would be needed. It would probably involve a small tool that allows to manipulate the incremental compilation directory in a controlled way and then letting a compiler instance run against directories in different states. I don't know if it's worth the trouble of adding another test category to `compiletest`, but I'd be happy to do so. Fixes #32754 Fixes #34957
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