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Lock the Nodes method properly when collecting them.

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This commit is contained in:
Milos Gajdos 2019-09-10 13:31:02 +01:00
parent 4c709f7ac1
commit cbce5490d7
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GPG Key ID: 8B31058CC55DFD4F
3 changed files with 30 additions and 20 deletions
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10
network/node.go
View File

@ -46,16 +46,16 @@ func (n *node) Network() Network {
// Nodes returns a slice if all nodes in node topology
func (n *node) Nodes() []Node {
//track the visited nodes
visited := make(map[string]*node)
// queue of the nodes to visit
queue := list.New()
// we need to freeze the network graph here
// otherwise we might get invalid results
n.RLock()
defer n.RUnlock()
//track the visited nodes
visited := make(map[string]*node)
// queue of the nodes to visit
queue := list.New()
// push node to the back of queue
queue.PushBack(n)
// mark the node as visited

21
network/proto/network.pb.go
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@ -53,8 +53,9 @@ func (m *ListRequest) XXX_DiscardUnknown() {
var xxx_messageInfo_ListRequest proto.InternalMessageInfo
// ListResponse is returned by ListNodes and ListNeighbours
// ListResponse is returned by ListNodes
type ListResponse struct {
// network nodes
Nodes []*Node `protobuf:"bytes,1,rep,name=nodes,proto3" json:"nodes,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
@ -93,8 +94,9 @@ func (m *ListResponse) GetNodes() []*Node {
return nil
}
// PeerRequest is sent to query node peers
// PeerRequest requests list of peers
type PeerRequest struct {
// node id
Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
@ -133,7 +135,7 @@ func (m *PeerRequest) GetId() string {
return ""
}
// PeerResponse returns node neighbourhood
// PeerResponse is returned by ListPeers
type PeerResponse struct {
Peers *Peers `protobuf:"bytes,1,opt,name=peers,proto3" json:"peers,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
@ -173,8 +175,11 @@ func (m *PeerResponse) GetPeers() *Peers {
return nil
}
// Peers are node peers
type Peers struct {
Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
// network node
Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
// node peers
Peers []*Node `protobuf:"bytes,2,rep,name=peers,proto3" json:"peers,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
@ -222,7 +227,7 @@ func (m *Peers) GetPeers() []*Node {
// Node is network node
type Node struct {
// node ide
// node id
Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
// node address
Address string `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
@ -352,7 +357,7 @@ func (m *Close) GetNode() *Node {
return nil
}
// Solicit is sent when requesting route advertisement from the network nodes
// Solicit is sent when soliciting routes from the network nodes
type Solicit struct {
// network node
Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
@ -393,11 +398,11 @@ func (m *Solicit) GetNode() *Node {
return nil
}
// Peer is used to announce node peers
// Peer is used to advertise node peers
type Peer struct {
// network node
Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
// neighbours
// node peers
Peers []*Peer `protobuf:"bytes,2,rep,name=peers,proto3" json:"peers,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`

19
network/proto/network.proto
View File

@ -14,29 +14,34 @@ service Network {
// Empty request
message ListRequest {}
// ListResponse is returned by ListNodes and ListNeighbours
// ListResponse is returned by ListNodes
message ListResponse {
// network nodes
repeated Node nodes = 1;
}
// PeerRequest is sent to query node peers
// PeerRequest requests list of peers
message PeerRequest {
// node id
string id = 1;
}
// PeerResponse returns node neighbourhood
// PeerResponse is returned by ListPeers
message PeerResponse {
Peers peers = 1;
}
// Peers are node peers
message Peers {
// network node
Node node = 1;
// node peers
repeated Node peers = 2;
}
// Node is network node
message Node {
// node ide
// node id
string id = 1;
// node address
string address = 2;
@ -54,16 +59,16 @@ message Close {
Node node = 1;
}
// Solicit is sent when requesting route advertisement from the network nodes
// Solicit is sent when soliciting routes from the network nodes
message Solicit {
// network node
Node node = 1;
}
// Peer is used to announce node peers
// Peer is used to advertise node peers
message Peer {
// network node
Node node = 1;
// neighbours
// node peers
repeated Peer peers = 2;
}