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Editor to share with you how socket transmits protobuf byte streams, I believe most people don't know much about it, so share this article for your reference. I hope you can learn a lot after reading this article. Let's learn about it together.

Example

1 / 2 / / method of serializing messages into binary 3 / objects to be serialized 5 public static byte [] Serialize (IExtensible model) 6 {7 try 8 {9 / / create stream objects 10 MemoryStream ms = new MemoryStream () 11 / / serialize IExtensible objects 12 Serializer.Serialize (ms, model) using the sequence chemical tools included with ProtoBuf 13 / / create a binary array and save the serialized stream 14 byte [] bytes = new byte [ms.Length]; 15 / set the location of the stream to 016 ms.Position = 0 17 / / read the contents of the stream into the binary array 18 ms.Read (bytes, 0, bytes.Length); 19 return bytes 20} 21 catch (Exception e) 22 {23 Debug.Log ("serialization failed:" + e.ToString ()); 24 return null;25} 26}

Each message in the protobuf file can be converted to a class in c # through the ProtoGen tool provided by protocol buffer, for example

Message Test {required string test1= 1; required string test2= 2;}

After transformation, it becomes

1 [global::System.Serializable, global::ProtoBuf.ProtoContract (Name=@ "SedReq")] 2 public partial class Test: global::ProtoBuf.IExtensible 3 {4 public Test () {} 56 private string _ test1; 7 [global::ProtoBuf.ProtoMember (1, IsRequired = true, Name=@ "test1", DataFormat = global::ProtoBuf.DataFormat.Default)] 8 public string test1 9 {10 get {return _ test1;} 11 set {_ test1 = value } 12} 13 private string _ test2;14 [global::ProtoBuf.ProtoMember (2, IsRequired = true, Name=@ "test2", DataFormat = global::ProtoBuf.DataFormat.Default)] 15 public string test216 {17 get {return _ test2;} 18 set {_ test2 = value;} 19} 20 private global::ProtoBuf.IExtension extensionObject 21 global::ProtoBuf.IExtension global::ProtoBuf.IExtensible.GetExtensionObject (bool createIfMissing) 22 {return global::ProtoBuf.Extensible.GetExtensionObject (ref extensionObject, createIfMissing);} 23}

Ignoring all the code with global, you will find that the transformed c # class is exactly the same as a standard c # entity class, and these converted classes inherit to ProtoBuf.IExtensible, so the parameter type of the serialization function above is IExtensible

With serialization, of course, you also need deserialization, that is, byte [] deserializes into objects of the type inherited from IExtensible.

1 / 2 / / deserializes the received message into a byte stream of the message received by the IExtensible object 3 / 4 /. 5 / / 6 public static T DeSerialize (byte [] bytes) where T: IExtensible 7 {8 try 9 {10 MemoryStream ms = new MemoryStream () 11 / / write the message to 12 ms.Write (bytes, 0, bytes.Length) in the stream; 13 / return the location of the stream to 014 ms.Position = 0 15 / / deserialization object 16 T result = Serializer.Deserialize (ms); 17 return result;18} 19 catch (Exception e) 20 {21 Debug.Log ("deserialization failed:" + e.ToString ()); 22 return null;23} 24}

Because the deserialized object is an object of the class inherited from IExtensible, the return value must be defined using a generic constraint to ensure the generality of the function.

Tools are done, and then it's time to test the code.

1 public void Test () 2 {3 Test test = new Test () {test1 = "123", test2 = "456"}; 4 byte [] bytes = Serialize (test); 5 Test test2 = DeSerialize (bytes); 6 Debug.Log (test2.test1 + test2.test2); 7}

Output 123456

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