Esempio n. 1
0
// TODO(cryptix):  find these helpers somewhere else
func (i *gatewayHandler) newDagFromReader(r io.Reader) (*dag.Node, error) {
	// TODO(cryptix): change and remove this helper once PR1136 is merged
	// return ufs.AddFromReader(i.node, r.Body)
	return importer.BuildDagFromReader(
		i.node.DAG,
		chunk.DefaultSplitter(r),
		importer.BasicPinnerCB(i.node.Pinning.GetManual()))
}
Esempio n. 2
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// appendData appends the blocks from the given chan to the end of this dag
func (dm *DagModifier) appendData(node *mdag.Node, blks <-chan []byte, errs <-chan error) (*mdag.Node, error) {
	dbp := &help.DagBuilderParams{
		Dagserv:  dm.dagserv,
		Maxlinks: help.DefaultLinksPerBlock,
		NodeCB:   imp.BasicPinnerCB(dm.mp),
	}

	return trickle.TrickleAppend(dm.ctx, node, dbp.New(blks, errs))
}
Esempio n. 3
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// Add builds a merkledag from the a reader, pinning all objects to the local
// datastore. Returns a key representing the root node.
func Add(n *core.IpfsNode, r io.Reader) (string, error) {
	// TODO more attractive function signature importer.BuildDagFromReader

	dagNode, err := importer.BuildDagFromReader(
		n.DAG,
		chunk.NewSizeSplitter(r, chunk.DefaultBlockSize),
		importer.BasicPinnerCB(n.Pinning.GetManual()),
	)
	if err != nil {
		return "", err
	}
	k, err := dagNode.Key()
	if err != nil {
		return "", err
	}

	return k.String(), nil
}
Esempio n. 4
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func getNode(t testing.TB, dserv mdag.DAGService, size int64, pinner pin.ManualPinner) ([]byte, *mdag.Node) {
	in := io.LimitReader(u.NewTimeSeededRand(), size)
	node, err := imp.BuildTrickleDagFromReader(dserv, sizeSplitterGen(500)(in), imp.BasicPinnerCB(pinner))
	if err != nil {
		t.Fatal(err)
	}

	dr, err := uio.NewDagReader(context.Background(), node, dserv)
	if err != nil {
		t.Fatal(err)
	}

	b, err := ioutil.ReadAll(dr)
	if err != nil {
		t.Fatal(err)
	}

	return b, node
}