关于systemd socket activation

Frank · July 25, 2022, 6:17am

想请问一下代码中

go-gitea/gitea/blob/c18d8d6968cb175703942631f0094ffb415f51f4/modules/graceful/net_unix.go#L171


      
          
          
	mutex.Lock()
          	defer mutex.Unlock()
          
          
	// look for a provided listener
          	for i, l := range providedListeners {
          		if isSameAddr(l.Addr(), address) {
          			providedListeners = append(providedListeners[:i], providedListeners[i+1:]...)
          			activeListeners = append(activeListeners, l)
          			unixListener := l.(*net.UnixListener)
          			unixListener.SetUnlinkOnClose(true)
          			return unixListener, nil
          		}
          	}
          
          
	// make a fresh listener
          	if err := util.Remove(address.Name); err != nil && !os.IsNotExist(err) {
          		return nil, fmt.Errorf("Failed to remove unix socket %s: %v", address.Name, err)
          	}
          
          
	l, err := net.ListenUnix(network, address)

为什么要在结束运行后unlink systemd监听的socket，这是否并不是期望的行为？

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