/
hub.go
56 lines (48 loc) · 974 Bytes
/
hub.go
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package websocket
import (
"github.com/google/uuid"
)
type Hub struct {
ID string
Clients map[*Client]bool
Broadcast chan Message
Register chan *Client
Unregister chan *Client
}
func NewHub(id string) *Hub {
if id == "" {
id = uuid.New().String()
}
return &Hub{
ID: id,
Clients: make(map[*Client]bool),
Broadcast: make(chan Message),
Register: make(chan *Client),
Unregister: make(chan *Client),
}
}
func (h *Hub) Run(hubs map[string]*Hub) {
for {
select {
case message := <-h.Broadcast:
for client := range h.Clients {
select {
case client.Send <- message:
default:
close(client.Send)
delete(h.Clients, client)
}
}
case client := <-h.Register:
h.Clients[client] = true
case client := <-h.Unregister:
if _, ok := h.Clients[client]; ok {
delete(h.Clients, client)
close(client.Send)
}
if len(h.Clients) == 0 {
delete(hubs, client.Hub.ID)
}
}
}
}