Esempio n. 1
0
func TestDuplicateSemantics(t *testing.T) {
	ctx := context.Background()
	dstore := dssync.MutexWrap(ds.NewMapDatastore())
	bstore := blockstore.NewBlockstore(dstore)
	bserv := bs.New(bstore, offline.Exchange(bstore))

	dserv := mdag.NewDAGService(bserv)

	// TODO does pinner need to share datastore with blockservice?
	p := NewPinner(dstore, dserv)

	a, _ := randNode()
	_, err := dserv.Add(a)
	if err != nil {
		t.Fatal(err)
	}

	// pin is recursively
	err = p.Pin(ctx, a, true)
	if err != nil {
		t.Fatal(err)
	}

	// pinning directly should fail
	err = p.Pin(ctx, a, false)
	if err == nil {
		t.Fatal("expected direct pin to fail")
	}

	// pinning recursively again should succeed
	err = p.Pin(ctx, a, true)
	if err != nil {
		t.Fatal(err)
	}
}
Esempio n. 2
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func getMockDagServAndBstore(t testing.TB) (mdag.DAGService, blockstore.Blockstore, pin.ManualPinner) {
	dstore := ds.NewMapDatastore()
	tsds := sync.MutexWrap(dstore)
	bstore := blockstore.NewBlockstore(tsds)
	bserv := bs.New(bstore, offline.Exchange(bstore))
	dserv := mdag.NewDAGService(bserv)
	return dserv, bstore, pin.NewPinner(tsds, dserv).GetManual()
}
Esempio n. 3
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func setupNode(ctx context.Context, n *IpfsNode, cfg *BuildCfg) error {
	// setup local peer ID (private key is loaded in online setup)
	if err := n.loadID(); err != nil {
		return err
	}

	var err error
	n.Blockstore, err = bstore.WriteCached(bstore.NewBlockstore(n.Repo.Datastore()), kSizeBlockstoreWriteCache)
	if err != nil {
		return err
	}

	if cfg.Online {
		rcfg, err := n.Repo.Config()
		if err != nil {
			return err
		}
		do := setupDiscoveryOption(rcfg.Discovery)
		if err := n.startOnlineServices(ctx, cfg.Routing, cfg.Host, do); err != nil {
			return err
		}
	} else {
		n.Exchange = offline.Exchange(n.Blockstore)
	}

	n.Blocks = bserv.New(n.Blockstore, n.Exchange)
	n.DAG = dag.NewDAGService(n.Blocks)
	n.Pinning, err = pin.LoadPinner(n.Repo.Datastore(), n.DAG)
	if err != nil {
		// TODO: we should move towards only running 'NewPinner' explicity on
		// node init instead of implicitly here as a result of the pinner keys
		// not being found in the datastore.
		// this is kinda sketchy and could cause data loss
		n.Pinning = pin.NewPinner(n.Repo.Datastore(), n.DAG)
	}
	n.Resolver = &path.Resolver{DAG: n.DAG}

	return nil
}
Esempio n. 4
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func TestPinRecursiveFail(t *testing.T) {
	ctx := context.Background()
	dstore := dssync.MutexWrap(ds.NewMapDatastore())
	bstore := blockstore.NewBlockstore(dstore)
	bserv := bs.New(bstore, offline.Exchange(bstore))

	dserv := mdag.NewDAGService(bserv)

	p := NewPinner(dstore, dserv)

	a, _ := randNode()
	b, _ := randNode()
	err := a.AddNodeLinkClean("child", b)
	if err != nil {
		t.Fatal(err)
	}

	// Note: this isnt a time based test, we expect the pin to fail
	mctx, cancel := context.WithTimeout(ctx, time.Millisecond)
	defer cancel()
	err = p.Pin(mctx, a, true)
	if err == nil {
		t.Fatal("should have failed to pin here")
	}

	if _, err := dserv.Add(b); err != nil {
		t.Fatal(err)
	}

	// this one is time based... but shouldnt cause any issues
	mctx, cancel = context.WithTimeout(ctx, time.Second)
	defer cancel()
	if err := p.Pin(mctx, a, true); err != nil {
		t.Fatal(err)
	}
}
Esempio n. 5
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func getDagserv(t *testing.T) merkledag.DAGService {
	db := dssync.MutexWrap(ds.NewMapDatastore())
	bs := bstore.NewBlockstore(db)
	blockserv := bserv.New(bs, offline.Exchange(bs))
	return merkledag.NewDAGService(blockserv)
}
Esempio n. 6
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func NewMemoryDagService() dag.DAGService {
	// build mem-datastore for editor's intermediary nodes
	bs := bstore.NewBlockstore(syncds.MutexWrap(ds.NewMapDatastore()))
	bsrv := bserv.New(bs, offline.Exchange(bs))
	return dag.NewDAGService(bsrv)
}
Esempio n. 7
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func Mock() dag.DAGService {
	bstore := blockstore.NewBlockstore(dssync.MutexWrap(ds.NewMapDatastore()))
	bserv := bsrv.New(bstore, offline.Exchange(bstore))
	return dag.NewDAGService(bserv)
}
Esempio n. 8
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func TestPinnerBasic(t *testing.T) {
	ctx := context.Background()

	dstore := dssync.MutexWrap(ds.NewMapDatastore())
	bstore := blockstore.NewBlockstore(dstore)
	bserv := bs.New(bstore, offline.Exchange(bstore))

	dserv := mdag.NewDAGService(bserv)

	// TODO does pinner need to share datastore with blockservice?
	p := NewPinner(dstore, dserv)

	a, ak := randNode()
	_, err := dserv.Add(a)
	if err != nil {
		t.Fatal(err)
	}

	// Pin A{}
	err = p.Pin(ctx, a, false)
	if err != nil {
		t.Fatal(err)
	}

	if !p.IsPinned(ak) {
		t.Fatal("Failed to find key")
	}

	// create new node c, to be indirectly pinned through b
	c, ck := randNode()
	_, err = dserv.Add(c)
	if err != nil {
		t.Fatal(err)
	}

	// Create new node b, to be parent to a and c
	b, _ := randNode()
	err = b.AddNodeLink("child", a)
	if err != nil {
		t.Fatal(err)
	}

	err = b.AddNodeLink("otherchild", c)
	if err != nil {
		t.Fatal(err)
	}

	_, err = dserv.Add(b)
	if err != nil {
		t.Fatal(err)
	}

	// recursively pin B{A,C}
	err = p.Pin(ctx, b, true)
	if err != nil {
		t.Fatal(err)
	}

	if !p.IsPinned(ck) {
		t.Fatal("Child of recursively pinned node not found")
	}

	bk, _ := b.Key()
	if !p.IsPinned(bk) {
		t.Fatal("Recursively pinned node not found..")
	}

	d, _ := randNode()
	d.AddNodeLink("a", a)
	d.AddNodeLink("c", c)

	e, ek := randNode()
	d.AddNodeLink("e", e)

	// Must be in dagserv for unpin to work
	err = dserv.AddRecursive(d)
	if err != nil {
		t.Fatal(err)
	}

	// Add D{A,C,E}
	err = p.Pin(ctx, d, true)
	if err != nil {
		t.Fatal(err)
	}

	if !p.IsPinned(ek) {
		t.Fatal(err)
	}

	dk, _ := d.Key()
	if !p.IsPinned(dk) {
		t.Fatal("pinned node not found.")
	}

	// Test recursive unpin
	err = p.Unpin(ctx, dk, true)
	if err != nil {
		t.Fatal(err)
	}

	// c should still be pinned under b
	if !p.IsPinned(ck) {
		t.Fatal("Recursive / indirect unpin fail.")
	}

	err = p.Flush()
	if err != nil {
		t.Fatal(err)
	}

	np, err := LoadPinner(dstore, dserv)
	if err != nil {
		t.Fatal(err)
	}

	// Test directly pinned
	if !np.IsPinned(ak) {
		t.Fatal("Could not find pinned node!")
	}

	// Test indirectly pinned
	if !np.IsPinned(ck) {
		t.Fatal("could not find indirectly pinned node")
	}

	// Test recursively pinned
	if !np.IsPinned(bk) {
		t.Fatal("could not find recursively pinned node")
	}
}