Add transfer API

Signed-off-by: Derek McGowan <derek@mcg.dev>

api/services/transfer/v1/transfer_grpc.pb.go

@@ -0,0 +1,106 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v3.20.1
+// source: github.com/containerd/containerd/api/services/transfer/v1/transfer.proto
+
+package transfer
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+	emptypb "google.golang.org/protobuf/types/known/emptypb"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// TransferClient is the client API for Transfer service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type TransferClient interface {
+	Transfer(ctx context.Context, in *TransferRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
+}
+
+type transferClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewTransferClient(cc grpc.ClientConnInterface) TransferClient {
+	return &transferClient{cc}
+}
+
+func (c *transferClient) Transfer(ctx context.Context, in *TransferRequest, opts ...grpc.CallOption) (*emptypb.Empty, error) {
+	out := new(emptypb.Empty)
+	err := c.cc.Invoke(ctx, "/containerd.services.transfer.v1.Transfer/Transfer", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// TransferServer is the server API for Transfer service.
+// All implementations must embed UnimplementedTransferServer
+// for forward compatibility
+type TransferServer interface {
+	Transfer(context.Context, *TransferRequest) (*emptypb.Empty, error)
+	mustEmbedUnimplementedTransferServer()
+}
+
+// UnimplementedTransferServer must be embedded to have forward compatible implementations.
+type UnimplementedTransferServer struct {
+}
+
+func (UnimplementedTransferServer) Transfer(context.Context, *TransferRequest) (*emptypb.Empty, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Transfer not implemented")
+}
+func (UnimplementedTransferServer) mustEmbedUnimplementedTransferServer() {}
+
+// UnsafeTransferServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to TransferServer will
+// result in compilation errors.
+type UnsafeTransferServer interface {
+	mustEmbedUnimplementedTransferServer()
+}
+
+func RegisterTransferServer(s grpc.ServiceRegistrar, srv TransferServer) {
+	s.RegisterService(&Transfer_ServiceDesc, srv)
+}
+
+func _Transfer_Transfer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(TransferRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TransferServer).Transfer(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/containerd.services.transfer.v1.Transfer/Transfer",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TransferServer).Transfer(ctx, req.(*TransferRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// Transfer_ServiceDesc is the grpc.ServiceDesc for Transfer service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var Transfer_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "containerd.services.transfer.v1.Transfer",
+	HandlerType: (*TransferServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Transfer",
+			Handler:    _Transfer_Transfer_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "github.com/containerd/containerd/api/services/transfer/v1/transfer.proto",
+}