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main.go
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main.go
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/*
* Glue - Robust Go and Javascript Socket Library
* Copyright DesertBit
* Author: Roland Singer
*
* Licensed under the Apache 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://www.apache.org/licenses/LICENSE-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 main
import (
"log"
"net/http"
"runtime"
"github.com/desertbit/glue"
)
const (
ListenAddress = ":8888"
)
func main() {
// Set the maximum number of CPUs that can be executing simultaneously.
runtime.GOMAXPROCS(runtime.NumCPU())
// Release the glue library on defer.
// This will block new incoming connections
// and close all current active sockets.
defer glue.Release()
// Set the glue event function.
glue.OnNewSocket(onNewSocket)
// Set the http file server.
http.Handle("/", http.StripPrefix("/", http.FileServer(http.Dir("public"))))
http.Handle("/dist/", http.StripPrefix("/dist/", http.FileServer(http.Dir("../../client/dist"))))
// Start the http server.
err := http.ListenAndServe(ListenAddress, nil)
if err != nil {
log.Fatalf("ListenAndServe: %v", err)
}
}
func onNewSocket(s *glue.Socket) {
// We won't read any data from the socket itself.
// Discard received data!
s.DiscardRead()
// Set a function which is triggered as soon as the socket is closed.
s.OnClose(func() {
log.Printf("socket closed with remote address: %s", s.RemoteAddr())
})
// Create a channel.
c := s.Channel("golang")
// Set the channel on read event function.
c.OnRead(func(data string) {
// Echo the received data back to the client.
c.Write("channel golang: " + data)
})
// Write to the channel.
c.Write("Hello Gophers!")
}