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Nicolas LacasseandgVisor bot
36fcbff8a4
These util methods make it easier to work with multiple marshallable structs at once. PiperOrigin-RevId: 522353552
45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
// Copyright 2020 The gVisor Authors.
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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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 marshal
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// Marshal returns the serialized contents of m in a newly allocated
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// byte slice.
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func Marshal(m Marshallable) []byte {
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buf := make([]byte, m.SizeBytes())
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m.MarshalUnsafe(buf)
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return buf
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}
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// MarshalAll returns the serialized contents of all ms in a newly allocated
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// byte slice.
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func MarshalAll(ms []Marshallable) []byte {
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buf := make([]byte, TotalSize(ms))
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var written int
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for _, m := range ms {
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m.MarshalUnsafe(buf[written:])
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written += m.SizeBytes()
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}
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return buf
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}
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// TotalSize returns the total size of all ms.
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func TotalSize(ms []Marshallable) int {
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var size int
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for _, m := range ms {
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size += m.SizeBytes()
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}
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return size
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}
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