45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
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// Command gracedemo implements a demo server showing how to gracefully
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// terminate an HTTP server using finmonitor and goagain.
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package main
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import (
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"flag"
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"fmt"
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"github.com/nshah/go.grace/gracehttp"
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"net/http"
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"time"
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)
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var (
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address0 = flag.String("a0", ":48567", "Zero address to bind to.")
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address1 = flag.String("a1", ":48568", "First address to bind to.")
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address2 = flag.String("a2", ":48569", "Second address to bind to.")
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now = time.Now()
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)
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func main() {
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flag.Parse()
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gracehttp.Serve(
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gracehttp.Handler{*address0, newHandler("Zero ")},
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gracehttp.Handler{*address1, newHandler("First ")},
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gracehttp.Handler{*address2, newHandler("Second")},
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)
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}
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func newHandler(name string) http.Handler {
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mux := http.NewServeMux()
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mux.HandleFunc("/sleep/", func(w http.ResponseWriter, r *http.Request) {
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duration, err := time.ParseDuration(r.FormValue("duration"))
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if err != nil {
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http.Error(w, err.Error(), 400)
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}
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time.Sleep(duration)
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w.Write([]byte(fmt.Sprintf(
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"%s started at %s slept for %d nanoseconds.\n",
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name,
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now,
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duration.Nanoseconds())))
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})
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return mux
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}
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