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-rw-r--r--pkg/log/glog_unsafe.go32
1 files changed, 32 insertions, 0 deletions
diff --git a/pkg/log/glog_unsafe.go b/pkg/log/glog_unsafe.go
new file mode 100644
index 000000000..ea17ae349
--- /dev/null
+++ b/pkg/log/glog_unsafe.go
@@ -0,0 +1,32 @@
+// 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 log
+
+import (
+ "reflect"
+ "unsafe"
+)
+
+// unsafeString returns a string that points to the given byte array.
+// The byte array must be preserved until the string is disposed.
+func unsafeString(data []byte) (s string) {
+ if len(data) == 0 {
+ return
+ }
+
+ (*reflect.StringHeader)(unsafe.Pointer(&s)).Data = uintptr(unsafe.Pointer(&data[0]))
+ (*reflect.StringHeader)(unsafe.Pointer(&s)).Len = len(data)
+ return
+}