diff options
Diffstat (limited to 'pkg/log/glog_unsafe.go')
-rw-r--r-- | pkg/log/glog_unsafe.go | 32 |
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 +} |