Beispiel #1
0
// teardown closes owned children. If any errors occur, this function returns
// the first error.
func (n *IpfsNode) teardown() error {
	log.Debug("core is shutting down...")
	// owned objects are closed in this teardown to ensure that they're closed
	// regardless of which constructor was used to add them to the node.
	var closers []io.Closer

	// NOTE: The order that objects are added(closed) matters, if an object
	// needs to use another during its shutdown/cleanup process, it should be
	// closed before that other object

	if n.FilesRoot != nil {
		closers = append(closers, n.FilesRoot)
	}

	if n.Exchange != nil {
		closers = append(closers, n.Exchange)
	}

	if n.Mounts.Ipfs != nil && !n.Mounts.Ipfs.IsActive() {
		closers = append(closers, mount.Closer(n.Mounts.Ipfs))
	}
	if n.Mounts.Ipns != nil && !n.Mounts.Ipns.IsActive() {
		closers = append(closers, mount.Closer(n.Mounts.Ipns))
	}

	if dht, ok := n.Routing.(*dht.IpfsDHT); ok {
		closers = append(closers, dht.Process())
	}

	if n.Blocks != nil {
		closers = append(closers, n.Blocks)
	}

	if n.Bootstrapper != nil {
		closers = append(closers, n.Bootstrapper)
	}

	if n.PeerHost != nil {
		closers = append(closers, n.PeerHost)
	}

	// Repo closed last, most things need to preserve state here
	closers = append(closers, n.Repo)

	var errs []error
	for _, closer := range closers {
		if err := closer.Close(); err != nil {
			errs = append(errs, err)
		}
	}
	if len(errs) > 0 {
		return errs[0]
	}
	return nil
}
Beispiel #2
0
// teardown closes owned children. If any errors occur, this function returns
// the first error.
func (n *IpfsNode) teardown() error {
	log.Debug("core is shutting down...")
	// owned objects are closed in this teardown to ensure that they're closed
	// regardless of which constructor was used to add them to the node.
	closers := []io.Closer{
		n.Repo,
	}

	if n.Exchange != nil {
		closers = append(closers, n.Exchange)
	}

	if n.Mounts.Ipfs != nil {
		closers = append(closers, mount.Closer(n.Mounts.Ipfs))
	}
	if n.Mounts.Ipns != nil {
		closers = append(closers, mount.Closer(n.Mounts.Ipns))
	}

	// Filesystem needs to be closed before network, dht, and blockservice
	// so it can use them as its shutting down
	if n.IpnsFs != nil {
		closers = append(closers, n.IpnsFs)
	}

	if n.Blocks != nil {
		closers = append(closers, n.Blocks)
	}

	if n.Bootstrapper != nil {
		closers = append(closers, n.Bootstrapper)
	}

	if dht, ok := n.Routing.(*dht.IpfsDHT); ok {
		closers = append(closers, dht.Process())
	}

	if n.PeerHost != nil {
		closers = append(closers, n.PeerHost)
	}

	var errs []error
	for _, closer := range closers {
		if err := closer.Close(); err != nil {
			errs = append(errs, err)
		}
	}
	if len(errs) > 0 {
		return errs[0]
	}
	return nil
}