top_channel_args.go

package http_api

import (

    "fmt"

    "log"

    "net"

    "net/http"

    "strings"

    "github.com/nsqio/nsq/internal/app"

)

type logWriter struct {

    app.Logger

}

func (l logWriter) Write(p []byte) (int, error) {

    l.Logger.Output(2, string(p))

    return len(p), nil

}

func Serve(listener net.Listener, handler http.Handler, proto string, l app.Logger) {

    l.Output(2, fmt.Sprintf("%s: listening on %s", proto, listener.Addr()))

    server := &http.Server{

        Handler:  handler,

        ErrorLog: log.New(logWriter{l}, "", 0),

    }

    err := server.Serve(listener)

    // theres no direct way to detect this error because it is not exposed

    if err != nil && !strings.Contains(err.Error(), "use of closed network connection") {

        l.Output(2, fmt.Sprintf("ERROR: http.Serve() - %s", err))

    }

    l.Output(2, fmt.Sprintf("%s: closing %s", proto, listener.Addr()))

}