[PATCH] D139774: [libclang] Add API to set temporary directory location

[Igor Kushnir via Phabricator via llvm-commits]

vedgy added a comment.

One idea discussed in comments to the KDevelop merge request, which I haven't mentioned here is this: remove the preamble files immediately after creating and opening them. This is safe on Unix-like OSes, because every file that is still open will not actually be deleted but its directory entry cleared. It's an old Unix trick to mark (open) files as volatile. You could do this with any opened file (that you don't want to be able to close and then reopen) immediately after creating it in which case it'll get cleaned up even in case of a hard crash. However, my analysis of //clang/lib/Frontend/PrecompiledPreamble.cpp// shows that such unlinking isn't straightforward for the preamble files, e.g. because of `PrecompiledPreamble::getSize()`, which checks the file size at the preamble file path.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139774/new/

https://reviews.llvm.org/D139774