1 files changed, 53 insertions, 0 deletions
diff --git a/dom/system/OSFileConstants.h b/dom/system/OSFileConstants.h
new file mode 100644
index 0000000000..73b5911579
--- /dev/null
+++ b/dom/system/OSFileConstants.h
@@ -0,0 +1,53 @@
+/* -*- 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/. */
+
+#ifndef mozilla_osfileconstants_h__
+#define mozilla_osfileconstants_h__
+
+#include "nsIObserver.h"
+#include "nsIOSFileConstantsService.h"
+#include "mozilla/Attributes.h"
+
+namespace mozilla {
+
+/**
+ * XPConnect initializer, for use in the main thread.
+ * This class is thread-safe but it must be first be initialized on the
+ * main-thread.
+ */
+class OSFileConstantsService final : public nsIOSFileConstantsService,
+                                     public nsIObserver {
+ public:
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIOSFILECONSTANTSSERVICE
+  NS_DECL_NSIOBSERVER
+
+  static already_AddRefed<OSFileConstantsService> GetOrCreate();
+
+  bool DefineOSFileConstants(JSContext* aCx, JS::Handle<JSObject*> aGlobal);
+
+ private:
+  nsresult InitOSFileConstants();
+
+  OSFileConstantsService();
+  ~OSFileConstantsService();
+
+  bool mInitialized;
+
+  struct Paths;
+  UniquePtr<Paths> mPaths;
+
+  /**
+   * (Unix) the umask, which goes in OS.Constants.Sys but
+   * can only be looked up (via the system-info service)
+   * on the main thread.
+   */
+  uint32_t mUserUmask;
+};
+
+}  // namespace mozilla
+
+#endif  // mozilla_osfileconstants_h__