From 43ad592ec1b31ff41aa06833a455187f5947835e Mon Sep 17 00:00:00 2001
From: Andrew Harding <azdagron@gmail.com>
Date: Wed, 18 Jul 2018 18:31:05 -0600
Subject: [PATCH] provide access to underlying file handle

---
 file.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/file.go b/file.go
index 4334ff1..692c566 100644
--- a/file.go
+++ b/file.go
@@ -265,6 +265,10 @@ func (f *win32File) Flush() error {
 	return syscall.FlushFileBuffers(f.handle)
 }
 
+func (f *win32File) Fd() uintptr {
+	return uintptr(f.handle)
+}
+
 func (d *deadlineHandler) set(deadline time.Time) error {
 	d.setLock.Lock()
 	defer d.setLock.Unlock()