sproto-Csharp

A pure C# implementation of sproto. and using sprotodump compiler for C# language on your .sproto file to generate data access classes.

Tutorials

You write a Member.sproto file :

  .Person {
    name 0 : string
    id 1 : integer
    email 2 : string

    .PhoneNumber {
        number 0 : string
        type 1 : integer
    }

    phone 3 : *PhoneNumber
}

.AddressBook {
    person 0 : *Person
}

Then you compile it with sprotodump, to produce code in C#.

$ lua sprotodump.lua
usage: lua sprotodump.lua [[<out_option> <out>] ...] <option> <sproto_file ...>

  out_option:
    -d               dump to speciffic dircetory
    -o               dump to speciffic file
    -p               set package name(only cSharp code use)

  option: 
    -cs              dump to cSharp code file
    -spb             dump to binary spb  file
$
$ lua sprotodump.lua -cs Member.sproto  -o Member.cs

Then you use that code like this:

AddressBook address = new AddressBook ();
address.person = new System.Collections.Generic.List<Person> ();

Person person = new Person ();
person.name = "Alice";
person.id = 10000;

person.phone = new System.Collections.Generic.List<Person.PhoneNumber> ();
Person.PhoneNumber num1 = new Person.PhoneNumber ();
num1.number = "123456789";
num1.type = 1;
person.phone.Add (num1);

serialize and deserialize :

byte[] data = address.encode ();                  // encode to bytes

Sproto.SprotoStream stream = new SprotoStream (); // encode to stream
address.encode(stream);

Sproto.SprotoPack spack = new Sproto.SprotoPack ();
byte[] pack_data = spack.pack (data);             // pack
byte[] unpack_data = spack.unpack(pack_data);     // unpack

AddressBook obj = new AddressBook(unpack_data);   // decode

protocol

the Test.sproto file:

Foobar 1 {
  request {
    what 0 : string
  }
  response {
    ok 0 : boolean
  }
}

dump to c# code:

public class Protocol : ProtocolBase {
  public static  Protocol Instance = new Protocol();
  static Protocol() {
    Protocol.SetProtocol<Foobar> (Foobar.Tag);
    Protocol.SetRequest<SprotoType.Foobar.request> (Foobar.Tag);
    Protocol.SetResponse<SprotoType.Foobar.response> (Foobar.Tag);

  }

  public class Foobar {
    public const int Tag = 1;
  }
}

RPC API

Read TestCaseRpc.cs for detail.

Use in Unity

sproto-Unity

benchmark

in my i5-3470 @3.20GHz :

library	encode 1M times	decode 1M times
sproto-Csharp	2.84s	3.00s
sproto-Csharp(unpack)	1.36s	2.12s
protobuf-net	6.97s	8.09s