mirror of
https://github.com/gohugoio/hugo.git
synced 2024-05-11 05:54:58 +00:00
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
// Copyright © 2014 Steve Francia <spf@spf13.com>.
|
|
//
|
|
// Licensed under the Simple Public License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://opensource.org/licenses/Simple-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package livereload
|
|
|
|
type hub struct {
|
|
// Registered connections.
|
|
connections map[*connection]bool
|
|
|
|
// Inbound messages from the connections.
|
|
broadcast chan []byte
|
|
|
|
// Register requests from the connections.
|
|
register chan *connection
|
|
|
|
// Unregister requests from connections.
|
|
unregister chan *connection
|
|
}
|
|
|
|
var wsHub = hub{
|
|
broadcast: make(chan []byte),
|
|
register: make(chan *connection),
|
|
unregister: make(chan *connection),
|
|
connections: make(map[*connection]bool),
|
|
}
|
|
|
|
func (h *hub) run() {
|
|
for {
|
|
select {
|
|
case c := <-h.register:
|
|
h.connections[c] = true
|
|
case c := <-h.unregister:
|
|
delete(h.connections, c)
|
|
close(c.send)
|
|
case m := <-h.broadcast:
|
|
for c := range h.connections {
|
|
select {
|
|
case c.send <- m:
|
|
default:
|
|
delete(h.connections, c)
|
|
close(c.send)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|