71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
package main
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import (
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"flag"
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"log"
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"os"
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"os/signal"
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"time"
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//"syscall"
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"github.com/edgebox-iot/sysctl/internal/diagnostics"
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"fmt"
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)
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func main() {
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// load command line arguments
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version := flag.Bool("version", false, "Get the version info")
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name := flag.String("name", "edgebox", "name for the service")
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flag.Parse()
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if *version {
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printVersion()
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os.Exit(0)
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}
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log.Printf("Starting Sysctl service for %s", *name)
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// setup signal catching
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sigs := make(chan os.Signal, 1)
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// catch all signals since not explicitly listing
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signal.Notify(sigs)
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// Cathing specific signals can be done with:
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//signal.Notify(sigs,syscall.SIGQUIT)
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// method invoked upon seeing signal
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go func() {
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s := <-sigs
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log.Printf("RECEIVED SIGNAL: %s", s)
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appCleanup()
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os.Exit(1)
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}()
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// infinite loop
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for {
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log.Printf("Executing instruction %s", *name)
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// wait random number of milliseconds
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Nsecs := 1000
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log.Printf("Next instruction executed in %dms", Nsecs)
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time.Sleep(time.Millisecond * time.Duration(Nsecs))
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}
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}
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// AppCleanup : cleanup app state before exit
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func appCleanup() {
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log.Println("Cleaning up app status before exit")
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}
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func printVersion() {
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fmt.Printf(
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"version: %s\ncommit: %s\nbuild time: %s",
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diagnostics.Version, diagnostics.Commit, diagnostics.BuildDate,
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)
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}
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