[PATCH] D139168: [C++20] [Modules] [ClangScanDeps] Enable to print make-style dependency file within P1689 format (4/4)

[Jan Svoboda via Phabricator via cfe-commits]

jansvoboda11 added inline comments.


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Comment at: clang/tools/clang-scan-deps/ClangScanDeps.cpp:775
+            static llvm::StringMap<llvm::raw_fd_ostream> OSs;
+            std::unique_lock<std::mutex> LockGuard(Lock);
+
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How will this work when a different process tries to write the same file? Could we write into a temporary file and then do atomic rename?


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  https://reviews.llvm.org/D139168/new/

https://reviews.llvm.org/D139168