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Prevent divide by zero if there are no hubs (#8763)

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This commit is contained in:
Joram Wilander
2018-05-10 11:22:10 -04:00
committed by Derrick Anderson
parent 823b22c403
commit 68340d4715
1 changed files with 12 additions and 2 deletions
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14
app/web_hub.go
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@@ -125,6 +125,10 @@ func (a *App) HubStop() {
}
func (a *App) GetHubForUserId(userId string) *Hub {
if len(a.Hubs) == 0 {
return nil
}
hash := fnv.New32a()
hash.Write([]byte(userId))
index := hash.Sum32() % uint32(len(a.Hubs))
@@ -132,11 +136,17 @@ func (a *App) GetHubForUserId(userId string) *Hub {
}
func (a *App) HubRegister(webConn *WebConn) {
a.GetHubForUserId(webConn.UserId).Register(webConn)
hub := a.GetHubForUserId(webConn.UserId)
if hub != nil {
hub.Register(webConn)
}
}
func (a *App) HubUnregister(webConn *WebConn) {
a.GetHubForUserId(webConn.UserId).Unregister(webConn)
hub := a.GetHubForUserId(webConn.UserId)
if hub != nil {
hub.Unregister(webConn)
}
}
func (a *App) Publish(message *model.WebSocketEvent) {