mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-23 06:40:23 +00:00
ff3e84ad67
updating kubernetes to 1.28.0 in the main repo. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
/*
|
|
Copyright 2023 The Kubernetes 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 runtime
|
|
|
|
import (
|
|
"bytes"
|
|
"io"
|
|
)
|
|
|
|
// Splice is the interface that wraps the Splice method.
|
|
//
|
|
// Splice moves data from given slice without copying the underlying data for
|
|
// efficiency purpose. Therefore, the caller should make sure the underlying
|
|
// data is not changed later.
|
|
type Splice interface {
|
|
Splice([]byte)
|
|
io.Writer
|
|
Reset()
|
|
Bytes() []byte
|
|
}
|
|
|
|
// A spliceBuffer implements Splice and io.Writer interfaces.
|
|
type spliceBuffer struct {
|
|
raw []byte
|
|
buf *bytes.Buffer
|
|
}
|
|
|
|
func NewSpliceBuffer() Splice {
|
|
return &spliceBuffer{}
|
|
}
|
|
|
|
// Splice implements the Splice interface.
|
|
func (sb *spliceBuffer) Splice(raw []byte) {
|
|
sb.raw = raw
|
|
}
|
|
|
|
// Write implements the io.Writer interface.
|
|
func (sb *spliceBuffer) Write(p []byte) (n int, err error) {
|
|
if sb.buf == nil {
|
|
sb.buf = &bytes.Buffer{}
|
|
}
|
|
return sb.buf.Write(p)
|
|
}
|
|
|
|
// Reset resets the buffer to be empty.
|
|
func (sb *spliceBuffer) Reset() {
|
|
if sb.buf != nil {
|
|
sb.buf.Reset()
|
|
}
|
|
sb.raw = nil
|
|
}
|
|
|
|
// Bytes returns the data held by the buffer.
|
|
func (sb *spliceBuffer) Bytes() []byte {
|
|
if sb.buf != nil && len(sb.buf.Bytes()) > 0 {
|
|
return sb.buf.Bytes()
|
|
}
|
|
if sb.raw != nil {
|
|
return sb.raw
|
|
}
|
|
return []byte{}
|
|
}
|