public void Trivial() { var implementationInfo = new ServiceImplementationInfo(); var path = new ServicePath("MyService", "MyMethod"); var handler = (ServiceMethodHandler)((i, d) => new byte[0]); factory.CreateMethodHandler(implementationInfo, path).Returns(handler); var handler1 = container.GetMethodHandler(implementationInfo, path); var handler2 = container.GetMethodHandler(implementationInfo, path); Assert.That(handler1, Is.EqualTo(handler2)); }
public ServiceMethodHandler CreateMethodHandler(ServiceImplementationInfo serviceImplementationInfo, ServicePath servicePath) { var serviceInterface = serviceImplementationInfo.Interface; var dynamicMethod = new DynamicMethod( "__srpc__handle__" + serviceInterface.FullName + "__" + string.Join("_", servicePath), typeof(byte[]), ParameterTypes, Assembly.GetExecutingAssembly().ManifestModule); var il = dynamicMethod.GetILGenerator(); var locals = new LocalVariableCollection(il, true); il.Emit(OpCodes.Ldarg_0); // stack_0 = (TServiceImplementation) arg_0 il.Emit(OpCodes.Castclass, serviceInterface); var serviceDesc = serviceImplementationInfo.Description; for (int i = 1; i < servicePath.Length - 1; i++) { var propertyInfo = serviceDesc.Type.GetProperty(servicePath[i]); il.Emit(OpCodes.Callvirt, propertyInfo.GetGetMethod()); // stack_0 = stack_0.Property SubserviceDescription subserviceDescription; if (!serviceDesc.TryGetSubservice(servicePath[i], out subserviceDescription)) throw new InvalidPathException(); serviceDesc = subserviceDescription.Service; } var methodName = servicePath.MethodName; var methodInfo = serviceDesc.Type.GetMethod(methodName); MethodDescription methodDesc; if (!serviceDesc.TryGetMethod(methodName, out methodDesc)) throw new InvalidPathException(); bool hasRetval = methodDesc.ReturnType != typeof(void); var parameters = methodDesc.Parameters.Select((x, i) => new ParameterNecessity { Description = x, Codec = codecContainer.GetEmittingCodecFor(x.Type), LocalVariable = x.Way != MethodParameterWay.Val ? il.DeclareLocal(x.Type) : null, ArgumentIndex = i }) .ToArray(); var requestParameters = parameters .Where(x => x.Description.Way == MethodParameterWay.Val || x.Description.Way == MethodParameterWay.Ref) .ToArray(); var responseParameters = parameters .Where(x => x.Description.Way == MethodParameterWay.Ref || x.Description.Way == MethodParameterWay.Out) .ToArray(); LocalBuilder requestDataPointerVar = null; if (requestParameters.Any()) { il.Emit(OpCodes.Ldarg_1); // remainingBytes = arg_1.Length il.Emit(OpCodes.Ldlen); il.Emit(OpCodes.Stloc, locals.RemainingBytes); requestDataPointerVar = // var pinned dataPointer = pin(arg_1) il.Emit_PinArray(typeof(byte), locals, 1); il.Emit(OpCodes.Ldloc, requestDataPointerVar); // data = dataPointer il.Emit(OpCodes.Stloc, locals.DataPointer); } foreach (var parameter in parameters) { switch (parameter.Description.Way) { case MethodParameterWay.Val: parameter.Codec.EmitDecode(il, locals, false); // stack_i = decode(data, remainingBytes, false) break; case MethodParameterWay.Ref: parameter.Codec.EmitDecode(il, locals, false); // param_i = decode(data, remainingBytes, false) il.Emit(OpCodes.Stloc, parameter.LocalVariable); il.Emit(OpCodes.Ldloca, parameter.LocalVariable); // stack_i = *param_i break; case MethodParameterWay.Out: il.Emit(OpCodes.Ldloca, parameter.LocalVariable); // stack_i = *param_i break; default: throw new ArgumentOutOfRangeException(); } } if (requestParameters.Any()) { il.Emit_UnpinArray(requestDataPointerVar); // unpin(dataPointer) } il.Emit(OpCodes.Callvirt, methodInfo); // stack_0 = stack_0.Method(stack_1, stack_2, ...) if (hasRetval || responseParameters.Any()) { IEmittingCodec retvalCodec = null; LocalBuilder retvalVar = null; if (hasRetval) { retvalCodec = codecContainer.GetEmittingCodecFor(methodDesc.ReturnType); retvalVar = il.DeclareLocal(methodDesc.ReturnType); // var ret = stack_0 il.Emit(OpCodes.Stloc, retvalVar); retvalCodec.EmitCalculateSize(il, retvalVar); // stack_0 = calculateSize(ret) } bool hasSizeOnStack = hasRetval; foreach (var parameter in responseParameters) { parameter.Codec.EmitCalculateSize(il, parameter.LocalVariable); // stack_0 += calculateSize(param_i) if (hasSizeOnStack) il.Emit(OpCodes.Add); else hasSizeOnStack = true; } var dataArrayVar = il.DeclareLocal(typeof(byte[])); // var dataArray = new byte[size of retval] il.Emit(OpCodes.Newarr, typeof(byte)); il.Emit(OpCodes.Stloc, dataArrayVar); var responseDataPointerVar = // var pinned dataPointer = pin(dataArrayVar) il.Emit_PinArray(typeof(byte), locals, dataArrayVar); il.Emit(OpCodes.Ldloc, responseDataPointerVar); // data = dataPointer il.Emit(OpCodes.Stloc, locals.DataPointer); foreach (var parameter in responseParameters) parameter.Codec.EmitEncode(il, locals, parameter.LocalVariable);// encode(data, param_i) if (hasRetval) retvalCodec.EmitEncode(il, locals, retvalVar); // encode(data, ret) il.Emit_UnpinArray(responseDataPointerVar); // unpin(dataPointer) il.Emit(OpCodes.Ldloc, dataArrayVar); // stack_0 = dataArray } else { il.Emit(OpCodes.Ldc_I4, 0); // stack_0 = new byte[0] il.Emit(OpCodes.Newarr, typeof(byte)); } il.Emit(OpCodes.Ret); return (ServiceMethodHandler)dynamicMethod.CreateDelegate(typeof(ServiceMethodHandler)); }
public ServiceMethodHandler CreateMethodHandler(ServiceImplementationInfo serviceImplementationInfo, ServicePath servicePath) { var serviceInterface = serviceImplementationInfo.Description.Type; var dynamicMethod = new DynamicMethod( "__srpc__handle__" + serviceInterface.FullName + "__" + string.Join("_", servicePath), typeof(byte[]), ParameterTypes, Assembly.GetExecutingAssembly().ManifestModule, true); var il = dynamicMethod.GetILGenerator(); var locals = new LocalVariableCollection(il, true); il.Emit(OpCodes.Ldarg_0); // stack_0 = (TServiceImplementation) arg_0 il.Emit(OpCodes.Castclass, serviceInterface); var serviceDesc = serviceImplementationInfo.Description; for (int i = 1; i < servicePath.Length - 1; i++) { var propertyInfo = serviceDesc.Type.GetProperty(servicePath[i]); il.Emit(OpCodes.Callvirt, propertyInfo.GetGetMethod()); // stack_0 = stack_0.Property SubserviceDescription subserviceDescription; if (!serviceDesc.TryGetSubservice(servicePath[i], out subserviceDescription)) { throw new InvalidPathException(); } serviceDesc = subserviceDescription.Service; } var methodName = servicePath.MethodName; MethodDescription methodDesc; if (!serviceDesc.TryGetMethod(methodName, out methodDesc)) { throw new InvalidPathException(); } bool hasRetval = methodDesc.ReturnType != typeof(void); var parameters = methodDesc.Parameters.Select((x, i) => new ParameterNecessity { Description = x, Codec = codecContainer.GetEmittingCodecFor(x.Type), LocalVariable = x.Way != MethodParameterWay.Val ? il.DeclareLocal(x.Type) : null, ArgumentIndex = i }) .ToArray(); var requestParameters = parameters .Where(x => x.Description.Way == MethodParameterWay.Val || x.Description.Way == MethodParameterWay.Ref) .ToArray(); var responseParameters = parameters .Where(x => x.Description.Way == MethodParameterWay.Ref || x.Description.Way == MethodParameterWay.Out) .ToArray(); LocalBuilder requestDataPointerVar = null; if (requestParameters.Any()) { il.Emit(OpCodes.Ldarg_1); // remainingBytes = arg_1.Length il.Emit(OpCodes.Ldlen); il.Emit(OpCodes.Stloc, locals.RemainingBytes); requestDataPointerVar = // var pinned dataPointer = pin(arg_1) il.Emit_PinArray(typeof(byte), 1); il.Emit(OpCodes.Ldloc, requestDataPointerVar); // data = dataPointer il.Emit(OpCodes.Stloc, locals.DataPointer); } foreach (var parameter in parameters) { switch (parameter.Description.Way) { case MethodParameterWay.Val: parameter.Codec.EmitDecode(il, locals, false); // stack_i = decode(data, remainingBytes, false) break; case MethodParameterWay.Ref: parameter.Codec.EmitDecode(il, locals, false); // param_i = decode(data, remainingBytes, false) il.Emit(OpCodes.Stloc, parameter.LocalVariable); il.Emit(OpCodes.Ldloca, parameter.LocalVariable); // stack_i = *param_i break; case MethodParameterWay.Out: il.Emit(OpCodes.Ldloca, parameter.LocalVariable); // stack_i = *param_i break; default: throw new ArgumentOutOfRangeException(); } } if (requestParameters.Any()) { il.Emit_UnpinArray(requestDataPointerVar); // unpin(dataPointer) } il.Emit(OpCodes.Callvirt, methodDesc.MethodInfo); // stack_0 = stack_0.Method(stack_1, stack_2, ...) if (hasRetval || responseParameters.Any()) { IEmittingCodec retvalCodec = null; LocalBuilder retvalVar = null; if (hasRetval) { retvalCodec = codecContainer.GetEmittingCodecFor(methodDesc.ReturnType); retvalVar = il.DeclareLocal(methodDesc.ReturnType); // var ret = stack_0 il.Emit(OpCodes.Stloc, retvalVar); retvalCodec.EmitCalculateSize(il, retvalVar); // stack_0 = calculateSize(ret) } bool hasSizeOnStack = hasRetval; foreach (var parameter in responseParameters) { parameter.Codec.EmitCalculateSize(il, parameter.LocalVariable); // stack_0 += calculateSize(param_i) if (hasSizeOnStack) { il.Emit(OpCodes.Add); } else { hasSizeOnStack = true; } } var dataArrayVar = il.DeclareLocal(typeof(byte[])); // var dataArray = new byte[size of retval] il.Emit(OpCodes.Newarr, typeof(byte)); il.Emit(OpCodes.Stloc, dataArrayVar); var responseDataPointerVar = // var pinned dataPointer = pin(dataArrayVar) il.Emit_PinArray(typeof(byte), dataArrayVar); il.Emit(OpCodes.Ldloc, responseDataPointerVar); // data = dataPointer il.Emit(OpCodes.Stloc, locals.DataPointer); foreach (var parameter in responseParameters) { parameter.Codec.EmitEncode(il, locals, parameter.LocalVariable);// encode(data, param_i) } if (hasRetval) { retvalCodec.EmitEncode(il, locals, retvalVar); // encode(data, ret) } il.Emit_UnpinArray(responseDataPointerVar); // unpin(dataPointer) il.Emit(OpCodes.Ldloc, dataArrayVar); // stack_0 = dataArray } else { il.Emit(OpCodes.Ldc_I4, 0); // stack_0 = new byte[0] il.Emit(OpCodes.Newarr, typeof(byte)); } il.Emit(OpCodes.Ret); return((ServiceMethodHandler)dynamicMethod.CreateDelegate(typeof(ServiceMethodHandler))); }
public ServiceMethodHandler GetMethodHandler(ServiceImplementationInfo serviceImplementationInfo, ServicePath servicePath) { return(handlers.GetOrAdd(servicePath, p => factory.CreateMethodHandler(serviceImplementationInfo, p))); }
public void Setup() { codecContainer = new CodecContainer(); factory = new ServiceMethodHandlerFactory(codecContainer); service = Substitute.For<IGlobalServiceImplementation>(); var serviceDescriptionBuilder = new ServiceDescriptionBuilder(new MethodDescriptionBuilder()); var globalServiceDescription = serviceDescriptionBuilder.Build(typeof(IGlobalService)); globalServiceImplementationInfo = new ServiceImplementationInfo(typeof(IGlobalService), globalServiceDescription, service); }
public ServiceMethodHandler GetMethodHandler(ServiceImplementationInfo serviceImplementationInfo, ServicePath servicePath) { return handlers.GetOrAdd(servicePath, p => factory.CreateMethodHandler(serviceImplementationInfo, p)); }