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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
commit7e90985df09855dc309ed888a5b16a0ae684f8e3 (patch)
treec9e04d8022164aabccf48bef6b2e5263485f0b59 /lib/Frontend/FrontendActions.cpp
parentd58a0a55e64a7c410a80e9d6dcd899e61e99cc4d (diff)
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136315 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Frontend/FrontendActions.cpp')
-rw-r--r--lib/Frontend/FrontendActions.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Frontend/FrontendActions.cpp b/lib/Frontend/FrontendActions.cpp
index 44cd2dfe9b..4eb9cda398 100644
--- a/lib/Frontend/FrontendActions.cpp
+++ b/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;