Only update hardware stats when necessary (#73)

packages/common/src/feed.ts

@@ -10,6 +10,7 @@ import {
   NodeCount,
   NodeDetails,
   NodeStats,
+  NodeHardware,
   NodeLocation,
   BlockNumber,
   BlockDetails,
@@ -26,12 +27,13 @@ export const Actions = {
   LocatedNode      : 0x04 as 0x04,
   ImportedBlock    : 0x05 as 0x05,
   NodeStats        : 0x06 as 0x06,
-  TimeSync         : 0x07 as 0x07,
-  AddedChain       : 0x08 as 0x08,
-  RemovedChain     : 0x09 as 0x09,
-  SubscribedTo     : 0x0A as 0x0A,
-  UnsubscribedFrom : 0x0B as 0x0B,
-  Pong             : 0x0C as 0x0C,
+  NodeHardware     : 0x07 as 0x07,
+  TimeSync         : 0x08 as 0x08,
+  AddedChain       : 0x09 as 0x09,
+  RemovedChain     : 0x0A as 0x0A,
+  SubscribedTo     : 0x0B as 0x0B,
+  UnsubscribedFrom : 0x0C as 0x0C,
+  Pong             : 0x0D as 0x0D,
 };
 
 export type Action = typeof Actions[keyof typeof Actions];
@@ -54,7 +56,7 @@ export namespace Variants {
 
   export interface AddedNodeMessage extends MessageBase {
     action: typeof Actions.AddedNode;
-    payload: [NodeId, NodeDetails, NodeStats, BlockDetails, Maybe<NodeLocation>];
+    payload: [NodeId, NodeDetails, NodeStats, NodeHardware, BlockDetails, Maybe<NodeLocation>];
   }
 
   export interface RemovedNodeMessage extends MessageBase {
@@ -77,6 +79,11 @@ export namespace Variants {
     payload: [NodeId, NodeStats];
   }
 
+  export interface NodeHardwareMessage extends MessageBase {
+    action: typeof Actions.NodeHardware;
+    payload: [NodeId, NodeHardware];
+  }
+
   export interface TimeSyncMessage extends MessageBase {
     action: typeof Actions.TimeSync;
     payload: Timestamp;
@@ -116,6 +123,7 @@ export type Message =
   | Variants.LocatedNodeMessage
   | Variants.ImportedBlockMessage
   | Variants.NodeStatsMessage
+  | Variants.NodeHardwareMessage
   | Variants.TimeSyncMessage
   | Variants.AddedChainMessage
   | Variants.RemovedChainMessage

packages/common/src/index.ts

@@ -8,4 +8,4 @@ import * as FeedMessage from './feed';
 export { Types, FeedMessage };
 
 // Increment this if breaking changes were made to types in `feed.ts`
-export const VERSION: Types.FeedVersion = 18 as Types.FeedVersion;
+export const VERSION: Types.FeedVersion = 19 as Types.FeedVersion;

packages/common/src/types.ts

@@ -25,5 +25,6 @@ export type CPUUse = Opaque<number, 'CPUUse'>;
 
 export type BlockDetails = [BlockNumber, BlockHash, Milliseconds, Timestamp, Maybe<PropagationTime>];
 export type NodeDetails = [NodeName, NodeImplementation, NodeVersion, Maybe<Address>];
-export type NodeStats = [PeerCount, TransactionCount, Array<MemoryUse>, Array<CPUUse>, Array<Timestamp>];
+export type NodeStats = [PeerCount, TransactionCount];
+export type NodeHardware = [Array<MemoryUse>, Array<CPUUse>, Array<Timestamp>];
 export type NodeLocation = [Latitude, Longitude, City];