1 files changed, 33 insertions, 0 deletions
diff --git a/pkg/state/encode_unsafe.go b/pkg/state/encode_unsafe.go
new file mode 100644
index 000000000..e0dad83b4
--- /dev/null
+++ b/pkg/state/encode_unsafe.go
@@ -0,0 +1,33 @@
+// Copyright 2018 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package state
+
+import (
+	"reflect"
+	"unsafe"
+)
+
+// arrayFromSlice constructs a new pointer to the slice data.
+//
+// It would be similar to the following:
+//
+//	x := make([]Foo, l, c)
+//	a := ([l]Foo*)(unsafe.Pointer(x[0]))
+//
+func arrayFromSlice(obj reflect.Value) reflect.Value {
+	return reflect.NewAt(
+		reflect.ArrayOf(obj.Cap(), obj.Type().Elem()),
+		unsafe.Pointer(obj.Pointer()))
+}