Factor FDHandle out of the bytecode reader into the FileUtilities.h support
routines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10642 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/FileUtilities.cpp b/lib/Support/FileUtilities.cpp
index e6abc8f..02b4edd 100644
--- a/lib/Support/FileUtilities.cpp
+++ b/lib/Support/FileUtilities.cpp
@@ -194,3 +194,26 @@
bool llvm::MakeFileReadable(const std::string &Filename) {
return AddPermissionsBits(Filename, 0444);
}
+
+//===----------------------------------------------------------------------===//
+// FDHandle class implementation
+//
+
+FDHandle::~FDHandle() {
+ if (FD != -1) close(FD);
+}
+
+FDHandle &FDHandle::operator=(int fd) {
+ if (FD != -1) close(FD);
+ FD = fd;
+ return *this;
+}
+
+
+/// take - Take ownership of the file descriptor away from the FDHandle
+/// object, so that the file is not closed when the FDHandle is destroyed.
+int FDHandle::take() {
+ int Ret = FD;
+ FD = -1;
+ return Ret;
+}