43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
// Copyright 2017 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sharedbytes
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// SharedBytes is a custom type for protobuf, it does not
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// allocates memory in Unmarshal.
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type SharedBytes []byte
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// Marshal implements custom type for gogo/protobuf.
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func (sb SharedBytes) Marshal() ([]byte, error) {
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data := make([]byte, len(sb))
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copy(data, sb)
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return data, nil
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}
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// MarshalTo implements custom type for gogo/protobuf.
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func (sb SharedBytes) MarshalTo(data []byte) (n int, err error) {
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n = copy(data, sb)
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return
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}
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// Unmarshal implements custom type for gogo/protobuf.
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func (sb *SharedBytes) Unmarshal(data []byte) error {
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*sb = data
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return nil
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}
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// Size implements custom type for gogo/protobuf.
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func (sb SharedBytes) Size() int {
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return len(sb)
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}
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