C# AMFReader.ReadAMF3Data方法代碼示例

		public static DsoAmfBody Read(AMFReader reader, bool isAmf3) {
			reader.Reset();

			ushort targetUriLen = reader.ReadUInt16();
			string targetUri = reader.ReadUTF(targetUriLen); // When the message holds a response from a remote endpoint, the target URI specifies which method on the local client (i.e. reader request originator) should be invoked to handle the response.
			ushort responseUriLen = reader.ReadUInt16();
			string responseUri = reader.ReadUTF(responseUriLen); // The response's target URI is set to the request's response URI with an '/onResult' suffix to denote a success or an '/onStatus' suffix to denote a failure.

			long dataLen = reader.ReadUInt32();
			if (dataLen >= 2147483648) {
				dataLen = -4294967296;
			}

			object bodyObj;
			// Check for AMF3 kAvmPlusObjectType object type
			if (isAmf3) {
				byte typeMarker = reader.ReadByte();
				if (typeMarker == 17) {
					bodyObj = reader.ReadAMF3Data();
				} else {
					bodyObj = reader.ReadData();
				}
			} else {
				bodyObj = reader.ReadData();
			}


			DsoAmfBody body = new DsoAmfBody(targetUri, responseUri, bodyObj);
			return body;
		}

		public object ReadData(AMFReader reader, ClassDefinition classDefinition) {
			ASObject aso = new ASObject(_typeIdentifier);
			reader.AddAMF3ObjectReference(aso);
			string key = reader.ReadAMF3String();
			aso.TypeName = _typeIdentifier;
			while (key != string.Empty) {
				object value = reader.ReadAMF3Data();
				aso.Add(key, value);
				key = reader.ReadAMF3String();
			}
			return aso;
		}

        protected virtual ReadDataInvoker CreateReadDataMethod(Type type, AMFReader reader, object instance)
        {
#if !(MONO) && !(NET_2_0) && !(NET_3_5) && !(SILVERLIGHT)
            bool canSkipChecks = _ps.IsSubsetOf(AppDomain.CurrentDomain.PermissionSet);
#else
            bool canSkipChecks = SecurityManager.IsGranted(new ReflectionPermission(ReflectionPermissionFlag.MemberAccess));
#endif
            DynamicMethod method = new DynamicMethod(string.Empty, typeof(object), new Type[] { typeof(AMFReader), typeof(ClassDefinition) }, this.GetType(), canSkipChecks);
            ILGenerator il = method.GetILGenerator();

            LocalBuilder instanceLocal = il.DeclareLocal(type);//[0] instance
            LocalBuilder typeCodeLocal = il.DeclareLocal(typeof(byte));//[1] uint8 typeCode
            LocalBuilder keyLocal = il.DeclareLocal(typeof(string));//[2] string key
            LocalBuilder objTmp = il.DeclareLocal(typeof(object));//[3] temp object store
            LocalBuilder intTmp1 = il.DeclareLocal(typeof(int));//[4] temp int store, length
            LocalBuilder intTmp2 = il.DeclareLocal(typeof(int));//[5] temp int store, index
            LocalBuilder objTmp2 = il.DeclareLocal(typeof(object));//[6] temp object store
            LocalBuilder typeTmp = il.DeclareLocal(typeof(Type));//[7] temp Type store

            EmitHelper emit = new EmitHelper(il);
            ConstructorInfo typeConstructor = type.GetConstructor(EmitHelper.AnyVisibilityInstance, null, CallingConventions.HasThis, System.Type.EmptyTypes, null);
            MethodInfo miAddReference = typeof(AMFReader).GetMethod("AddAMF3ObjectReference");
            MethodInfo miReadByte = typeof(AMFReader).GetMethod("ReadByte");
            emit
                //object instance = new object();
                .newobj(typeConstructor) //Create the new instance and push the object reference onto the evaluation stack
                .stloc_0 //Pop from the top of the evaluation stack and store it in a the local variable list at index 0
                //reader.AddReference(instance);
                .ldarg_0 //Push the argument indexed at 1 onto the evaluation stack 'reader'
                .ldloc_0 //Loads the local variable at index 0 onto the evaluation stack 'instance'
                .callvirt(miAddReference) //Arguments are popped from the stack, the method call is performed, return value is pushed onto the stack
                //typeCode = 0;
                .ldc_i4_0 //Push the integer value of 0 onto the evaluation stack as an int32
                .stloc_1 //Pop and store it in a the local variable list at index 1
                //string key = null;
                .ldnull //Push a null reference onto the evaluation stack
                .stloc_2 //Pop and store it in a the local variable list at index 2 'key'
                .end()
            ;

            for (int i = 0; i < _classDefinition.MemberCount; i++)
            {
                string key = _classDefinition.Members[i].Name;
                byte typeCode = reader.ReadByte();
                object value = reader.ReadAMF3Data(typeCode);
                reader.SetMember(instance, key, value);

                emit
                    //.ldarg_1
                    //.callvirt(typeof(ClassDefinition).GetMethod("get_Members"))
                    //.ldc_i4(i)
                    //.conv_ovf_i
                    //.ldelem_ref
                    //.stloc_2
                    .ldarg_0
                    .callvirt(miReadByte)
                    .stloc_1
                    .end()
                ;
                
                MemberInfo[] memberInfos = type.GetMember(key);
                if (memberInfos != null && memberInfos.Length > 0)
                    GeneratePropertySet(emit, typeCode, memberInfos[0]);
                else
                {
                    //Log this error (do not throw exception), otherwise our current AMF stream becomes unreliable
                    log.Warn(__Res.GetString(__Res.Optimizer_Warning));
                    string msg = __Res.GetString(__Res.Reflection_MemberNotFound, string.Format("{0}.{1}", type.FullName, key));
                    log.Warn(msg);
                    //reader.ReadAMF3Data(typeCode);
                    emit
                        .ldarg_0 //Push 'reader'
                        .ldloc_1 //Push 'typeCode'
                        .callvirt(typeof(AMFReader).GetMethod("ReadAMF3Data", new Type[] { typeof(byte) }))
                        .pop
                        .end()
                    ;
                }
            }
            Label labelExit = emit.DefineLabel();
            emit
                .MarkLabel(labelExit)
                //return instance;
                .ldloc_0 //Load the local variable at index 0 onto the evaluation stack
                .ret() //Return
            ;

            return (ReadDataInvoker)method.CreateDelegate(typeof(ReadDataInvoker));
        }

		public object ReadData(AMFReader reader)
		{
			return reader.ReadAMF3Data();
		}