[clangd] don't buffer the input-mirror stream, it's used to diagnose crashes

llvm-svn: 346054

diff --git a/clang-tools-extra/clangd/tool/ClangdMain.cpp b/clang-tools-extra/clangd/tool/ClangdMain.cpp
index bfaec75b035e61afcb440656aad380098e3e1997..dd3c46ddd7261da355148cb6026c7049c59daeb9 100644 (file)
--- a/clang-tools-extra/clangd/tool/ClangdMain.cpp
+++ b/clang-tools-extra/clangd/tool/ClangdMain.cpp
@@ -217,6 +217,8 @@ int main(int argc, char *argv[]) {
     if (EC) {
       InputMirrorStream.reset();
       errs() << "Error while opening an input mirror file: " << EC.message();
+    } else {
+      InputMirrorStream->SetUnbuffered();
     }
   }