src/java.base/windows/native/libjava/io_util_md.c

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -582,5 +582,16 @@
     if (SetFilePointerEx(h, distance, &pos, op) == 0) {
         return -1;
     }
     return long_to_jlong(pos.QuadPart);
 }
+
+jlong
+handleGetLength(FD fd) {
+    HANDLE h = (HANDLE) fd;
+    LARGE_INTEGER length;
+    if (GetFileSizeEx(h, &length) != 0) {
+        return long_to_jlong(length.QuadPart);
+    } else {
+        return -1;
+    }
+}