ilya-biryukov added inline comments.
================
Comment at: clangd/TUScheduler.cpp:360
std::lock_guard<std::mutex> Lock(Mutex);
+ OldPreamble.reset();
if (NewPreamble)
----------------
ioeric wrote:
> ilya-biryukov wrote:
> > ioeric wrote:
> > > Why reset?
> > We don't need the old preamble at this point, so we give it a chance to die
> > (if there are no more references).
> > Note that there's an expensive operation that follows (building the AST),
> > so removing the preamble before it seems like a win
> sg. and do we guard this with mutex because the same old preamble data can be
> accessed by other threads? might worth a comment.
Guarding with mutex is not actually required. Moved it out of the locked
section and added a comment, thanks!
Repository:
rCTE Clang Tools Extra
https://reviews.llvm.org/D49783
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