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