1 files changed, 35 insertions, 0 deletions
diff --git a/mfbt/UniquePtrExtensions.cpp b/mfbt/UniquePtrExtensions.cpp
new file mode 100644
index 0000000000..229c942196
--- /dev/null
+++ b/mfbt/UniquePtrExtensions.cpp
@@ -0,0 +1,35 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "UniquePtrExtensions.h"
+
+#include "mozilla/Assertions.h"
+#include "mozilla/DebugOnly.h"
+
+#ifdef XP_WIN
+#  include <windows.h>
+#else
+#  include <errno.h>
+#  include <unistd.h>
+#endif
+
+namespace mozilla {
+namespace detail {
+
+void FileHandleDeleter::operator()(FileHandleHelper aHelper) {
+  if (aHelper != nullptr) {
+    DebugOnly<bool> ok;
+#ifdef XP_WIN
+    ok = CloseHandle(aHelper);
+#else
+    ok = close(aHelper) == 0 || errno == EINTR;
+#endif
+    MOZ_ASSERT(ok, "failed to close file handle");
+  }
+}
+
+}  // namespace detail
+}  // namespace mozilla