forked from TrueCloudLab/frostfs-api-go
94f068e462
We marshal only in-memory structures, no error is expected. Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
package storagegroup
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import (
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"github.com/nspcc-dev/neofs-api-go/v2/refs"
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"github.com/nspcc-dev/neofs-api-go/v2/rpc/message"
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storagegroup "github.com/nspcc-dev/neofs-api-go/v2/storagegroup/grpc"
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"github.com/nspcc-dev/neofs-api-go/v2/util/proto"
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)
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const (
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sizeField = 1
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hashField = 2
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expirationField = 3
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objectIDsField = 4
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)
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// StableMarshal marshals unified storage group structure in a protobuf
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// compatible way without field order shuffle.
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func (s *StorageGroup) StableMarshal(buf []byte) []byte {
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if s == nil {
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return []byte{}
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}
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if buf == nil {
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buf = make([]byte, s.StableSize())
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}
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var offset int
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offset += proto.UInt64Marshal(sizeField, buf[offset:], s.size)
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offset += proto.NestedStructureMarshal(hashField, buf[offset:], s.hash)
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offset += proto.UInt64Marshal(expirationField, buf[offset:], s.exp)
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refs.ObjectIDNestedListMarshal(objectIDsField, buf[offset:], s.members)
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return buf
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}
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// StableSize of storage group structure marshalled by StableMarshal function.
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func (s *StorageGroup) StableSize() (size int) {
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if s == nil {
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return 0
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}
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size += proto.UInt64Size(sizeField, s.size)
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size += proto.NestedStructureSize(hashField, s.hash)
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size += proto.UInt64Size(expirationField, s.exp)
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size += refs.ObjectIDNestedListSize(objectIDsField, s.members)
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return size
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}
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func (s *StorageGroup) Unmarshal(data []byte) error {
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return message.Unmarshal(s, data, new(storagegroup.StorageGroup))
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}
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