more stuff

pkg/messages/control_plane.pb.go

@@ -0,0 +1,555 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.36.10
+// 	protoc        v6.32.1
+// source: control_plane.proto
+
+package messages
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+	unsafe "unsafe"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// Empty request placeholder (common pattern).
+type Empty struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *Empty) Reset() {
+	*x = Empty{}
+	mi := &file_control_plane_proto_msgTypes[0]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *Empty) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Empty) ProtoMessage() {}
+
+func (x *Empty) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[0]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Empty.ProtoReflect.Descriptor instead.
+func (*Empty) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{0}
+}
+
+// Ping reply includes responding host and its current unix time (seconds).
+type PingReply struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Host          string                 `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`
+	UnixTime      int64                  `protobuf:"varint,2,opt,name=unix_time,json=unixTime,proto3" json:"unix_time,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *PingReply) Reset() {
+	*x = PingReply{}
+	mi := &file_control_plane_proto_msgTypes[1]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *PingReply) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingReply) ProtoMessage() {}
+
+func (x *PingReply) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[1]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingReply.ProtoReflect.Descriptor instead.
+func (*PingReply) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *PingReply) GetHost() string {
+	if x != nil {
+		return x.Host
+	}
+	return ""
+}
+
+func (x *PingReply) GetUnixTime() int64 {
+	if x != nil {
+		return x.UnixTime
+	}
+	return 0
+}
+
+// NegotiateRequest carries the caller's full view of known hosts (including self).
+type NegotiateRequest struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	KnownHosts    []string               `protobuf:"bytes,1,rep,name=known_hosts,json=knownHosts,proto3" json:"known_hosts,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *NegotiateRequest) Reset() {
+	*x = NegotiateRequest{}
+	mi := &file_control_plane_proto_msgTypes[2]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *NegotiateRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*NegotiateRequest) ProtoMessage() {}
+
+func (x *NegotiateRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[2]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use NegotiateRequest.ProtoReflect.Descriptor instead.
+func (*NegotiateRequest) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *NegotiateRequest) GetKnownHosts() []string {
+	if x != nil {
+		return x.KnownHosts
+	}
+	return nil
+}
+
+// NegotiateReply returns the callee's healthy hosts (including itself).
+type NegotiateReply struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Hosts         []string               `protobuf:"bytes,1,rep,name=hosts,proto3" json:"hosts,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *NegotiateReply) Reset() {
+	*x = NegotiateReply{}
+	mi := &file_control_plane_proto_msgTypes[3]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *NegotiateReply) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*NegotiateReply) ProtoMessage() {}
+
+func (x *NegotiateReply) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[3]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use NegotiateReply.ProtoReflect.Descriptor instead.
+func (*NegotiateReply) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *NegotiateReply) GetHosts() []string {
+	if x != nil {
+		return x.Hosts
+	}
+	return nil
+}
+
+// CartIdsReply returns the list of cart IDs (string form) currently owned locally.
+type ActorIdsReply struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Ids           []uint64               `protobuf:"varint,1,rep,packed,name=ids,proto3" json:"ids,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ActorIdsReply) Reset() {
+	*x = ActorIdsReply{}
+	mi := &file_control_plane_proto_msgTypes[4]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ActorIdsReply) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ActorIdsReply) ProtoMessage() {}
+
+func (x *ActorIdsReply) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[4]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ActorIdsReply.ProtoReflect.Descriptor instead.
+func (*ActorIdsReply) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *ActorIdsReply) GetIds() []uint64 {
+	if x != nil {
+		return x.Ids
+	}
+	return nil
+}
+
+// OwnerChangeAck retained as response type for Closing RPC (ConfirmOwner removed).
+type OwnerChangeAck struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Accepted      bool                   `protobuf:"varint,1,opt,name=accepted,proto3" json:"accepted,omitempty"`
+	Message       string                 `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *OwnerChangeAck) Reset() {
+	*x = OwnerChangeAck{}
+	mi := &file_control_plane_proto_msgTypes[5]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *OwnerChangeAck) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*OwnerChangeAck) ProtoMessage() {}
+
+func (x *OwnerChangeAck) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[5]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use OwnerChangeAck.ProtoReflect.Descriptor instead.
+func (*OwnerChangeAck) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *OwnerChangeAck) GetAccepted() bool {
+	if x != nil {
+		return x.Accepted
+	}
+	return false
+}
+
+func (x *OwnerChangeAck) GetMessage() string {
+	if x != nil {
+		return x.Message
+	}
+	return ""
+}
+
+// ClosingNotice notifies peers this host is terminating (so they can drop / re-resolve).
+type ClosingNotice struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Host          string                 `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ClosingNotice) Reset() {
+	*x = ClosingNotice{}
+	mi := &file_control_plane_proto_msgTypes[6]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ClosingNotice) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ClosingNotice) ProtoMessage() {}
+
+func (x *ClosingNotice) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[6]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ClosingNotice.ProtoReflect.Descriptor instead.
+func (*ClosingNotice) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *ClosingNotice) GetHost() string {
+	if x != nil {
+		return x.Host
+	}
+	return ""
+}
+
+// OwnershipAnnounce broadcasts first-touch ownership claims for cart IDs.
+// First claim wins; receivers SHOULD NOT overwrite an existing different owner.
+type OwnershipAnnounce struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Host          string                 `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`       // announcing host
+	Ids           []uint64               `protobuf:"varint,2,rep,packed,name=ids,proto3" json:"ids,omitempty"` // newly claimed cart ids
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *OwnershipAnnounce) Reset() {
+	*x = OwnershipAnnounce{}
+	mi := &file_control_plane_proto_msgTypes[7]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *OwnershipAnnounce) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*OwnershipAnnounce) ProtoMessage() {}
+
+func (x *OwnershipAnnounce) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[7]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use OwnershipAnnounce.ProtoReflect.Descriptor instead.
+func (*OwnershipAnnounce) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *OwnershipAnnounce) GetHost() string {
+	if x != nil {
+		return x.Host
+	}
+	return ""
+}
+
+func (x *OwnershipAnnounce) GetIds() []uint64 {
+	if x != nil {
+		return x.Ids
+	}
+	return nil
+}
+
+// ExpiryAnnounce broadcasts that a host evicted the provided cart IDs.
+type ExpiryAnnounce struct {
+	state         protoimpl.MessageState `protogen:"open.v1"`
+	Host          string                 `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`
+	Ids           []uint64               `protobuf:"varint,2,rep,packed,name=ids,proto3" json:"ids,omitempty"`
+	unknownFields protoimpl.UnknownFields
+	sizeCache     protoimpl.SizeCache
+}
+
+func (x *ExpiryAnnounce) Reset() {
+	*x = ExpiryAnnounce{}
+	mi := &file_control_plane_proto_msgTypes[8]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *ExpiryAnnounce) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ExpiryAnnounce) ProtoMessage() {}
+
+func (x *ExpiryAnnounce) ProtoReflect() protoreflect.Message {
+	mi := &file_control_plane_proto_msgTypes[8]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ExpiryAnnounce.ProtoReflect.Descriptor instead.
+func (*ExpiryAnnounce) Descriptor() ([]byte, []int) {
+	return file_control_plane_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *ExpiryAnnounce) GetHost() string {
+	if x != nil {
+		return x.Host
+	}
+	return ""
+}
+
+func (x *ExpiryAnnounce) GetIds() []uint64 {
+	if x != nil {
+		return x.Ids
+	}
+	return nil
+}
+
+var File_control_plane_proto protoreflect.FileDescriptor
+
+const file_control_plane_proto_rawDesc = "" +
+	"\n" +
+	"\x13control_plane.proto\x12\bmessages\"\a\n" +
+	"\x05Empty\"<\n" +
+	"\tPingReply\x12\x12\n" +
+	"\x04host\x18\x01 \x01(\tR\x04host\x12\x1b\n" +
+	"\tunix_time\x18\x02 \x01(\x03R\bunixTime\"3\n" +
+	"\x10NegotiateRequest\x12\x1f\n" +
+	"\vknown_hosts\x18\x01 \x03(\tR\n" +
+	"knownHosts\"&\n" +
+	"\x0eNegotiateReply\x12\x14\n" +
+	"\x05hosts\x18\x01 \x03(\tR\x05hosts\"!\n" +
+	"\rActorIdsReply\x12\x10\n" +
+	"\x03ids\x18\x01 \x03(\x04R\x03ids\"F\n" +
+	"\x0eOwnerChangeAck\x12\x1a\n" +
+	"\baccepted\x18\x01 \x01(\bR\baccepted\x12\x18\n" +
+	"\amessage\x18\x02 \x01(\tR\amessage\"#\n" +
+	"\rClosingNotice\x12\x12\n" +
+	"\x04host\x18\x01 \x01(\tR\x04host\"9\n" +
+	"\x11OwnershipAnnounce\x12\x12\n" +
+	"\x04host\x18\x01 \x01(\tR\x04host\x12\x10\n" +
+	"\x03ids\x18\x02 \x03(\x04R\x03ids\"6\n" +
+	"\x0eExpiryAnnounce\x12\x12\n" +
+	"\x04host\x18\x01 \x01(\tR\x04host\x12\x10\n" +
+	"\x03ids\x18\x02 \x03(\x04R\x03ids2\x8d\x03\n" +
+	"\fControlPlane\x12,\n" +
+	"\x04Ping\x12\x0f.messages.Empty\x1a\x13.messages.PingReply\x12A\n" +
+	"\tNegotiate\x12\x1a.messages.NegotiateRequest\x1a\x18.messages.NegotiateReply\x12<\n" +
+	"\x10GetLocalActorIds\x12\x0f.messages.Empty\x1a\x17.messages.ActorIdsReply\x12J\n" +
+	"\x11AnnounceOwnership\x12\x1b.messages.OwnershipAnnounce\x1a\x18.messages.OwnerChangeAck\x12D\n" +
+	"\x0eAnnounceExpiry\x12\x18.messages.ExpiryAnnounce\x1a\x18.messages.OwnerChangeAck\x12<\n" +
+	"\aClosing\x12\x17.messages.ClosingNotice\x1a\x18.messages.OwnerChangeAckB.Z,git.tornberg.me/go-cart-actor/proto;messagesb\x06proto3"
+
+var (
+	file_control_plane_proto_rawDescOnce sync.Once
+	file_control_plane_proto_rawDescData []byte
+)
+
+func file_control_plane_proto_rawDescGZIP() []byte {
+	file_control_plane_proto_rawDescOnce.Do(func() {
+		file_control_plane_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_control_plane_proto_rawDesc), len(file_control_plane_proto_rawDesc)))
+	})
+	return file_control_plane_proto_rawDescData
+}
+
+var file_control_plane_proto_msgTypes = make([]protoimpl.MessageInfo, 9)
+var file_control_plane_proto_goTypes = []any{
+	(*Empty)(nil),             // 0: messages.Empty
+	(*PingReply)(nil),         // 1: messages.PingReply
+	(*NegotiateRequest)(nil),  // 2: messages.NegotiateRequest
+	(*NegotiateReply)(nil),    // 3: messages.NegotiateReply
+	(*ActorIdsReply)(nil),     // 4: messages.ActorIdsReply
+	(*OwnerChangeAck)(nil),    // 5: messages.OwnerChangeAck
+	(*ClosingNotice)(nil),     // 6: messages.ClosingNotice
+	(*OwnershipAnnounce)(nil), // 7: messages.OwnershipAnnounce
+	(*ExpiryAnnounce)(nil),    // 8: messages.ExpiryAnnounce
+}
+var file_control_plane_proto_depIdxs = []int32{
+	0, // 0: messages.ControlPlane.Ping:input_type -> messages.Empty
+	2, // 1: messages.ControlPlane.Negotiate:input_type -> messages.NegotiateRequest
+	0, // 2: messages.ControlPlane.GetLocalActorIds:input_type -> messages.Empty
+	7, // 3: messages.ControlPlane.AnnounceOwnership:input_type -> messages.OwnershipAnnounce
+	8, // 4: messages.ControlPlane.AnnounceExpiry:input_type -> messages.ExpiryAnnounce
+	6, // 5: messages.ControlPlane.Closing:input_type -> messages.ClosingNotice
+	1, // 6: messages.ControlPlane.Ping:output_type -> messages.PingReply
+	3, // 7: messages.ControlPlane.Negotiate:output_type -> messages.NegotiateReply
+	4, // 8: messages.ControlPlane.GetLocalActorIds:output_type -> messages.ActorIdsReply
+	5, // 9: messages.ControlPlane.AnnounceOwnership:output_type -> messages.OwnerChangeAck
+	5, // 10: messages.ControlPlane.AnnounceExpiry:output_type -> messages.OwnerChangeAck
+	5, // 11: messages.ControlPlane.Closing:output_type -> messages.OwnerChangeAck
+	6, // [6:12] is the sub-list for method output_type
+	0, // [0:6] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_control_plane_proto_init() }
+func file_control_plane_proto_init() {
+	if File_control_plane_proto != nil {
+		return
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_control_plane_proto_rawDesc), len(file_control_plane_proto_rawDesc)),
+			NumEnums:      0,
+			NumMessages:   9,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_control_plane_proto_goTypes,
+		DependencyIndexes: file_control_plane_proto_depIdxs,
+		MessageInfos:      file_control_plane_proto_msgTypes,
+	}.Build()
+	File_control_plane_proto = out.File
+	file_control_plane_proto_goTypes = nil
+	file_control_plane_proto_depIdxs = nil
+}

pkg/messages/control_plane_grpc.pb.go

@@ -0,0 +1,327 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.5.1
+// - protoc             v6.32.1
+// source: control_plane.proto
+
+package messages
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// 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 v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	ControlPlane_Ping_FullMethodName              = "/messages.ControlPlane/Ping"
+	ControlPlane_Negotiate_FullMethodName         = "/messages.ControlPlane/Negotiate"
+	ControlPlane_GetLocalActorIds_FullMethodName  = "/messages.ControlPlane/GetLocalActorIds"
+	ControlPlane_AnnounceOwnership_FullMethodName = "/messages.ControlPlane/AnnounceOwnership"
+	ControlPlane_AnnounceExpiry_FullMethodName    = "/messages.ControlPlane/AnnounceExpiry"
+	ControlPlane_Closing_FullMethodName           = "/messages.ControlPlane/Closing"
+)
+
+// ControlPlaneClient is the client API for ControlPlane 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.
+//
+// ControlPlane defines cluster coordination and ownership operations.
+type ControlPlaneClient interface {
+	// Ping for liveness; lightweight health signal.
+	Ping(ctx context.Context, in *Empty, opts ...grpc.CallOption) (*PingReply, error)
+	// Negotiate merges host views; used during discovery & convergence.
+	Negotiate(ctx context.Context, in *NegotiateRequest, opts ...grpc.CallOption) (*NegotiateReply, error)
+	// GetCartIds lists currently owned cart IDs on this node.
+	GetLocalActorIds(ctx context.Context, in *Empty, opts ...grpc.CallOption) (*ActorIdsReply, error)
+	// Ownership announcement: first-touch claim broadcast (idempotent; best-effort).
+	AnnounceOwnership(ctx context.Context, in *OwnershipAnnounce, opts ...grpc.CallOption) (*OwnerChangeAck, error)
+	// Expiry announcement: drop remote ownership hints when local TTL expires.
+	AnnounceExpiry(ctx context.Context, in *ExpiryAnnounce, opts ...grpc.CallOption) (*OwnerChangeAck, error)
+	// Closing announces graceful shutdown so peers can proactively adjust.
+	Closing(ctx context.Context, in *ClosingNotice, opts ...grpc.CallOption) (*OwnerChangeAck, error)
+}
+
+type controlPlaneClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewControlPlaneClient(cc grpc.ClientConnInterface) ControlPlaneClient {
+	return &controlPlaneClient{cc}
+}
+
+func (c *controlPlaneClient) Ping(ctx context.Context, in *Empty, opts ...grpc.CallOption) (*PingReply, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(PingReply)
+	err := c.cc.Invoke(ctx, ControlPlane_Ping_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *controlPlaneClient) Negotiate(ctx context.Context, in *NegotiateRequest, opts ...grpc.CallOption) (*NegotiateReply, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(NegotiateReply)
+	err := c.cc.Invoke(ctx, ControlPlane_Negotiate_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *controlPlaneClient) GetLocalActorIds(ctx context.Context, in *Empty, opts ...grpc.CallOption) (*ActorIdsReply, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ActorIdsReply)
+	err := c.cc.Invoke(ctx, ControlPlane_GetLocalActorIds_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *controlPlaneClient) AnnounceOwnership(ctx context.Context, in *OwnershipAnnounce, opts ...grpc.CallOption) (*OwnerChangeAck, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(OwnerChangeAck)
+	err := c.cc.Invoke(ctx, ControlPlane_AnnounceOwnership_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *controlPlaneClient) AnnounceExpiry(ctx context.Context, in *ExpiryAnnounce, opts ...grpc.CallOption) (*OwnerChangeAck, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(OwnerChangeAck)
+	err := c.cc.Invoke(ctx, ControlPlane_AnnounceExpiry_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *controlPlaneClient) Closing(ctx context.Context, in *ClosingNotice, opts ...grpc.CallOption) (*OwnerChangeAck, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(OwnerChangeAck)
+	err := c.cc.Invoke(ctx, ControlPlane_Closing_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// ControlPlaneServer is the server API for ControlPlane service.
+// All implementations must embed UnimplementedControlPlaneServer
+// for forward compatibility.
+//
+// ControlPlane defines cluster coordination and ownership operations.
+type ControlPlaneServer interface {
+	// Ping for liveness; lightweight health signal.
+	Ping(context.Context, *Empty) (*PingReply, error)
+	// Negotiate merges host views; used during discovery & convergence.
+	Negotiate(context.Context, *NegotiateRequest) (*NegotiateReply, error)
+	// GetCartIds lists currently owned cart IDs on this node.
+	GetLocalActorIds(context.Context, *Empty) (*ActorIdsReply, error)
+	// Ownership announcement: first-touch claim broadcast (idempotent; best-effort).
+	AnnounceOwnership(context.Context, *OwnershipAnnounce) (*OwnerChangeAck, error)
+	// Expiry announcement: drop remote ownership hints when local TTL expires.
+	AnnounceExpiry(context.Context, *ExpiryAnnounce) (*OwnerChangeAck, error)
+	// Closing announces graceful shutdown so peers can proactively adjust.
+	Closing(context.Context, *ClosingNotice) (*OwnerChangeAck, error)
+	mustEmbedUnimplementedControlPlaneServer()
+}
+
+// UnimplementedControlPlaneServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedControlPlaneServer struct{}
+
+func (UnimplementedControlPlaneServer) Ping(context.Context, *Empty) (*PingReply, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Ping not implemented")
+}
+func (UnimplementedControlPlaneServer) Negotiate(context.Context, *NegotiateRequest) (*NegotiateReply, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Negotiate not implemented")
+}
+func (UnimplementedControlPlaneServer) GetLocalActorIds(context.Context, *Empty) (*ActorIdsReply, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetLocalActorIds not implemented")
+}
+func (UnimplementedControlPlaneServer) AnnounceOwnership(context.Context, *OwnershipAnnounce) (*OwnerChangeAck, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method AnnounceOwnership not implemented")
+}
+func (UnimplementedControlPlaneServer) AnnounceExpiry(context.Context, *ExpiryAnnounce) (*OwnerChangeAck, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method AnnounceExpiry not implemented")
+}
+func (UnimplementedControlPlaneServer) Closing(context.Context, *ClosingNotice) (*OwnerChangeAck, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Closing not implemented")
+}
+func (UnimplementedControlPlaneServer) mustEmbedUnimplementedControlPlaneServer() {}
+func (UnimplementedControlPlaneServer) testEmbeddedByValue()                      {}
+
+// UnsafeControlPlaneServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to ControlPlaneServer will
+// result in compilation errors.
+type UnsafeControlPlaneServer interface {
+	mustEmbedUnimplementedControlPlaneServer()
+}
+
+func RegisterControlPlaneServer(s grpc.ServiceRegistrar, srv ControlPlaneServer) {
+	// If the following call pancis, it indicates UnimplementedControlPlaneServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&ControlPlane_ServiceDesc, srv)
+}
+
+func _ControlPlane_Ping_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Empty)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ControlPlaneServer).Ping(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ControlPlane_Ping_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ControlPlaneServer).Ping(ctx, req.(*Empty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ControlPlane_Negotiate_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(NegotiateRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ControlPlaneServer).Negotiate(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ControlPlane_Negotiate_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ControlPlaneServer).Negotiate(ctx, req.(*NegotiateRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ControlPlane_GetLocalActorIds_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Empty)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ControlPlaneServer).GetLocalActorIds(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ControlPlane_GetLocalActorIds_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ControlPlaneServer).GetLocalActorIds(ctx, req.(*Empty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ControlPlane_AnnounceOwnership_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(OwnershipAnnounce)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ControlPlaneServer).AnnounceOwnership(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ControlPlane_AnnounceOwnership_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ControlPlaneServer).AnnounceOwnership(ctx, req.(*OwnershipAnnounce))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ControlPlane_AnnounceExpiry_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ExpiryAnnounce)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ControlPlaneServer).AnnounceExpiry(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ControlPlane_AnnounceExpiry_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ControlPlaneServer).AnnounceExpiry(ctx, req.(*ExpiryAnnounce))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _ControlPlane_Closing_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ClosingNotice)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ControlPlaneServer).Closing(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: ControlPlane_Closing_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ControlPlaneServer).Closing(ctx, req.(*ClosingNotice))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// ControlPlane_ServiceDesc is the grpc.ServiceDesc for ControlPlane service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var ControlPlane_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "messages.ControlPlane",
+	HandlerType: (*ControlPlaneServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Ping",
+			Handler:    _ControlPlane_Ping_Handler,
+		},
+		{
+			MethodName: "Negotiate",
+			Handler:    _ControlPlane_Negotiate_Handler,
+		},
+		{
+			MethodName: "GetLocalActorIds",
+			Handler:    _ControlPlane_GetLocalActorIds_Handler,
+		},
+		{
+			MethodName: "AnnounceOwnership",
+			Handler:    _ControlPlane_AnnounceOwnership_Handler,
+		},
+		{
+			MethodName: "AnnounceExpiry",
+			Handler:    _ControlPlane_AnnounceExpiry_Handler,
+		},
+		{
+			MethodName: "Closing",
+			Handler:    _ControlPlane_Closing_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "control_plane.proto",
+}