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-rw-r--r--tools/go_marshal/marshal/marshal.go60
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diff --git a/tools/go_marshal/marshal/marshal.go b/tools/go_marshal/marshal/marshal.go
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-// Copyright 2019 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 marshal defines the Marshallable interface for
-// serialize/deserializing go data structures to/from memory, according to the
-// Linux ABI.
-//
-// Implementations of this interface are typically automatically generated by
-// tools/go_marshal. See the go_marshal README for details.
-package marshal
-
-// Marshallable represents a type that can be marshalled to and from memory.
-type Marshallable interface {
- // SizeBytes is the size of the memory representation of a type in
- // marshalled form.
- SizeBytes() int
-
- // MarshalBytes serializes a copy of a type to dst. dst must be at least
- // SizeBytes() long.
- MarshalBytes(dst []byte)
-
- // UnmarshalBytes deserializes a type from src. src must be at least
- // SizeBytes() long.
- UnmarshalBytes(src []byte)
-
- // Packed returns true if the marshalled size of the type is the same as the
- // size it occupies in memory. This happens when the type has no fields
- // starting at unaligned addresses (should always be true by default for ABI
- // structs, verified by automatically generated tests when using
- // go_marshal), and has no fields marked `marshal:"unaligned"`.
- Packed() bool
-
- // MarshalUnsafe serializes a type by bulk copying its in-memory
- // representation to the dst buffer. This is only safe to do when the type
- // has no implicit padding, see Marshallable.Packed. When Packed would
- // return false, MarshalUnsafe should fall back to the safer but slower
- // MarshalBytes.
- MarshalUnsafe(dst []byte)
-
- // UnmarshalUnsafe deserializes a type directly to the underlying memory
- // allocated for the object by the runtime.
- //
- // This allows much faster unmarshalling of types which have no implicit
- // padding, see Marshallable.Packed. When Packed would return false,
- // UnmarshalUnsafe should fall back to the safer but slower unmarshal
- // mechanism implemented in UnmarshalBytes (usually by calling
- // UnmarshalBytes directly).
- UnmarshalUnsafe(src []byte)
-}