1 files changed, 15 insertions, 0 deletions
diff --git a/pkg/tcpip/link/sharedmem/sharedmem_unsafe.go b/pkg/tcpip/link/sharedmem/sharedmem_unsafe.go
new file mode 100644
index 000000000..52f93f480
--- /dev/null
+++ b/pkg/tcpip/link/sharedmem/sharedmem_unsafe.go
@@ -0,0 +1,15 @@
+// Copyright 2016 The Netstack Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package sharedmem
+
+import (
+	"unsafe"
+)
+
+// sharedDataPointer converts the shared data slice into a pointer so that it
+// can be used in atomic operations.
+func sharedDataPointer(sharedData []byte) *uint32 {
+	return (*uint32)(unsafe.Pointer(&sharedData[0:4][0]))
+}