using System.Diagnostics; using InnovEnergy.Lib.Protocols.DBus.Protocol.DataTypes; using InnovEnergy.Lib.Protocols.DBus.Protocol.DataTypes.Convert; using InnovEnergy.Lib.Protocols.DBus.Protocol.Header; namespace InnovEnergy.Lib.Protocols.DBus.Protocol; using HeaderType = ValueTuple>; public static class Replies { // https://www.freedesktop.org/software/systemd/man/sd-bus-errors.html public static Message CreateErrorReply(this Message msg, String error) { Debug.Assert(msg.Type == MessageType.MethodCall); var signature = error.GetSignature().AsRootSignature(); var fields = new[] { ((Byte) FieldCode.Destination, msg.Sender!.Variant()), ((Byte) FieldCode.ErrorName , "DBus.Error".Variant()), ((Byte) FieldCode.Signature , signature.Variant()), ((Byte) FieldCode.ReplySerial, msg.Serial.Variant()), }; ValueTuple> header = ( (Byte) Env.Endianness, (Byte) MessageType.Error, (Byte) HeaderFlags.NoReplyExpected, Message.ProtocolVersion, (UInt32) signature.MeasureSize(error), SerialSource.Next(), fields ); return new Message(header, error); } public static Message CreateMethodReturn(this Message msg, Object payload) { var signature = payload.GetSignature().AsRootSignature(); var fields = new[] { ((Byte) FieldCode.Destination, msg.Sender!.Variant()), ((Byte) FieldCode.Signature , signature.Variant()), ((Byte) FieldCode.ReplySerial, msg.Serial.Variant()), }; HeaderType header = ( (Byte)Env.Endianness, (Byte)MessageType.MethodReturn, (Byte)HeaderFlags.NoReplyExpected, Message.ProtocolVersion, (UInt32)signature.MeasureSize(payload), SerialSource.Next(), fields ); return new Message(header, payload); } }