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authorArgyrios Kyrtzidis <akyrtzi@gmail.com>2011-07-28 00:45:10 +0000
committerArgyrios Kyrtzidis <akyrtzi@gmail.com>2011-07-28 00:45:10 +0000
commit08a2bfd230cfc8049b6015c7ca2a3cc7d2fadb2f (patch)
tree283e9aa2b4ae63f090f71cd664d7af9daa212b64 /clang/lib/Frontend/FrontendActions.cpp
parentb7098a38b39758316d78c1a16f57227c5d2064ac (diff)
downloadbcm5719-llvm-08a2bfd230cfc8049b6015c7ca2a3cc7d2fadb2f.tar.gz
bcm5719-llvm-08a2bfd230cfc8049b6015c7ca2a3cc7d2fadb2f.zip
Cut down the number of open/close system calls for output files.
For PCH files, have only one open/close for temporary + rename to be safe from race conditions. For all other output files open/close the output file directly. Depends on llvm r136310. rdar://9082880 & http://llvm.org/PR9374. llvm-svn: 136315
Diffstat (limited to 'clang/lib/Frontend/FrontendActions.cpp')
-rw-r--r--clang/lib/Frontend/FrontendActions.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/clang/lib/Frontend/FrontendActions.cpp b/clang/lib/Frontend/FrontendActions.cpp
index 44cd2dfe9bf..4eb9cda3987 100644
--- a/clang/lib/Frontend/FrontendActions.cpp
+++ b/clang/lib/Frontend/FrontendActions.cpp
@@ -102,8 +102,10 @@ bool GeneratePCHAction::ComputeASTConsumerArguments(CompilerInstance &CI,
// We use createOutputFile here because this is exposed via libclang, and we
// must disable the RemoveFileOnSignal behavior.
+ // We use a temporary to avoid race conditions.
OS = CI.createOutputFile(CI.getFrontendOpts().OutputFile, /*Binary=*/true,
- /*RemoveFileOnSignal=*/false, InFile);
+ /*RemoveFileOnSignal=*/false, InFile,
+ /*Extension=*/"", /*useTemporary=*/true);
if (!OS)
return true;
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