36 lines
886 B
Go
36 lines
886 B
Go
package agentpb
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import (
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"fmt"
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"github.com/hashicorp/consul/agent/structs"
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)
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type ProtoMarshaller interface {
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Size() int
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MarshalTo([]byte) (int, error)
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Unmarshal([]byte) error
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ProtoMessage()
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}
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func EncodeInterface(t structs.MessageType, message interface{}) ([]byte, error) {
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if marshaller, ok := message.(ProtoMarshaller); ok {
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return Encode(t, marshaller)
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}
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return nil, fmt.Errorf("message does not implement the ProtoMarshaller interface: %T", message)
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}
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func Encode(t structs.MessageType, message ProtoMarshaller) ([]byte, error) {
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data := make([]byte, message.Size()+1)
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data[0] = uint8(t)
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if _, err := message.MarshalTo(data[1:]); err != nil {
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return nil, err
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}
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return data, nil
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}
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func Decode(buf []byte, out ProtoMarshaller) error {
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// Note that this assumes the leading byte indicating the type has already been stripped off
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return out.Unmarshal(buf)
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}
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