Run Binary Continuously

<p>Hey all, </p> <p>I&#39;ve got a binary that syncs data from one source to another. I&#39;d like this app to run continuously as I have jobs scheduled to sync the data every so often. To do this I&#39;m using the <a href="https://github.com/roylee0704/gron" rel="nofollow">https://github.com/roylee0704/gron</a> package. The problem is, that once the initial sync of data is completed, main closes, and application quits. </p> <p>What&#39;s the correct way to leave the application running until the process is killed? </p> <p>Thanks!</p> <hr/>**评论：**<br/><br/>tcrypt: <pre><p>I like to model it so the long running process is a struct with <code>Start()</code> and <code>Stop()</code> methods. In cmd/main.go you call them with a <code>signal.Notify</code> in between:</p> <pre><code>// Setup and start syncher := NewSyncer() syncher.Start() // Wait for signal c := make(chan os.Signal, 1) signal.Notify(c, os.Interrupt, syscall.SIGTERM) &lt;-c // Shutdown cleanly syncher.Stop() </code></pre></pre>qaisjp: <pre><p>This is the correct answer.</p></pre>hell_0n_wheel: <pre><blockquote> <p>The problem is, that once the initial sync of data is completed, main closes, and application quits.</p> </blockquote> <p>Generally, that&#39;s the expected behavior of anything you&#39;re going to control with <code>cron</code>. If your application never quit, why would you need to schedule jobs?</p> <p>If you really, absolutely, truly must keep your application up at all times:</p> <ul> <li>put an endless event loop in main(), or have it wait at some sort of barrier (such as a Group)</li> <li>launch your application with runit or some other service manager</li> </ul></pre>md2perpe: <pre><p>Try to just import <code>sync</code> and add the two following lines at the end of <code>main</code>:</p> <pre><code>var wg sync.WorkGroup wg.Add(1) wg.Wait() </code></pre></pre>lesmond: <pre><p>An elegant solution is just to add a select{} to the end of main</p></pre>