67 lines
1.5 KiB
Go
67 lines
1.5 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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import (
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"bytes"
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"sync"
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"github.com/gorilla/websocket"
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)
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type connection struct {
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// The websocket connection.
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ws *websocket.Conn
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// Buffered channel of outbound messages.
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send chan []byte
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// There is a potential data race, especially visible with large files.
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// This is protected by synchronisation of the send channel's close.
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closer sync.Once
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}
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func (c *connection) close() {
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c.closer.Do(func() {
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close(c.send)
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})
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}
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func (c *connection) reader() {
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for {
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_, message, err := c.ws.ReadMessage()
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if err != nil {
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break
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}
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if bytes.Contains(message, []byte(`"command":"hello"`)) {
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c.send <- []byte(`{
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"command": "hello",
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"protocols": [ "http://livereload.com/protocols/official-7" ],
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"serverName": "Hugo"
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}`)
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}
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}
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c.ws.Close()
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}
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func (c *connection) writer() {
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for message := range c.send {
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err := c.ws.WriteMessage(websocket.TextMessage, message)
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if err != nil {
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break
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}
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}
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c.ws.Close()
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}
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