57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
// Copyright 2015 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package livereload
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type hub struct {
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// Registered connections.
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connections map[*connection]bool
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// Inbound messages from the connections.
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broadcast chan []byte
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// Register requests from the connections.
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register chan *connection
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// Unregister requests from connections.
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unregister chan *connection
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}
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var wsHub = hub{
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broadcast: make(chan []byte),
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register: make(chan *connection),
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unregister: make(chan *connection),
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connections: make(map[*connection]bool),
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}
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func (h *hub) run() {
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for {
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select {
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case c := <-h.register:
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h.connections[c] = true
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case c := <-h.unregister:
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delete(h.connections, c)
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c.close()
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case m := <-h.broadcast:
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for c := range h.connections {
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select {
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case c.send <- m:
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default:
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delete(h.connections, c)
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c.close()
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}
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}
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}
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}
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}
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