Question

我正在序列化具有这种结构的对象：

[ProtoContract]
public class Foo{
   // some more properties 

   [ProtoMember(100)]
   public IEnumerable<Bar>{get;set}
}

[ProtoContract]
public class Bar{
   // a lot of properties
}

我正在使用此代码编写protobuf：

 var memoryStream = new MemoryStream();
 await new ProtoBufFormatter().WriteToStreamAsync(typeof(T), obj, ms, null, null);

一旦对象树超过一定大小（10000＆gt;以及更多项） - 我最终得到一个OutOfMemoryException。

我想知道是否有方法告诉protobuf-net进行更好的序列化（避免OutOfMemoryException）或者是否有其他方法来解决问题？

更新我得到以下异常：

Exception of type 'System.OutOfMemoryException' was thrown.
   at ProtoBuf.BufferPool.ResizeAndFlushLeft(Byte[]& buffer, Int32 toFitAtLeastBytes, Int32 copyFromIndex, Int32 copyBytes) in c:\Dev\protobuf-net\protobuf-net\BufferPool.cs:line 60
   at ProtoBuf.ProtoWriter.DemandSpace(Int32 required, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:line 501
   at ProtoBuf.ProtoWriter.WriteString(String value, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:line 600
   at proto_29(Object , ProtoWriter )
   at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Write(Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 53
   at ProtoBuf.Meta.RuntimeTypeModel.Serialize(Int32 key, Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 752
   at ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:line 46
   at proto_27(Object , ProtoWriter )
   at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Write(Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 53
   at ProtoBuf.Meta.RuntimeTypeModel.Serialize(Int32 key, Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 752
   at ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:line 46
   at proto_23(Object , ProtoWriter )
   at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Write(Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 53
   at ProtoBuf.Meta.RuntimeTypeModel.Serialize(Int32 key, Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 752
   at ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:line 46
   at proto_9(Object , ProtoWriter )
   at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Write(Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 53
   at ProtoBuf.Meta.RuntimeTypeModel.Serialize(Int32 key, Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 752
   at ProtoBuf.ProtoWriter.WriteObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:line 46
   at proto_6(Object , ProtoWriter )
   at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Write(Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 53
   at ProtoBuf.Meta.RuntimeTypeModel.Serialize(Int32 key, Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 752
   at ProtoBuf.ProtoWriter.WriteRecursionSafeObject(Object value, Int32 key, ProtoWriter writer) in c:\Dev\protobuf-net\protobuf-net\ProtoWriter.cs:line 75
   at proto_5(Object , ProtoWriter )
   at ProtoBuf.Serializers.CompiledSerializer.ProtoBuf.Serializers.IProtoSerializer.Write(Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Serializers\CompiledSerializer.cs:line 53
   at ProtoBuf.Meta.RuntimeTypeModel.Serialize(Int32 key, Object value, ProtoWriter dest) in c:\Dev\protobuf-net\protobuf-net\Meta\RuntimeTypeModel.cs:line 752
   at ProtoBuf.Meta.TypeModel.SerializeCore(ProtoWriter writer, Object value) in c:\Dev\protobuf-net\protobuf-net\Meta\TypeModel.cs:line 186
   at ProtoBuf.Meta.TypeModel.Serialize(Stream dest, Object value, SerializationContext context) in c:\Dev\protobuf-net\protobuf-net\Meta\TypeModel.cs:line 217
   at WebApiContrib.Formatting.ProtoBufFormatter.WriteToStreamAsync(Type type, Object value, Stream stream, HttpContent content, TransportContext transportContext)

序列化大对象树

0 个答案: