示例#1
0
文件: pin.go 项目: noscripter/go-ipfs
// helpers to marshal / unmarshal a pin set
func storeSet(d ds.Datastore, k ds.Key, val interface{}) error {
	buf, err := json.Marshal(val)
	if err != nil {
		return err
	}

	return d.Put(k, buf)
}
示例#2
0
func testNotHas(t *testing.T, d ds.Datastore, k ds.Key) {
	if _, err := d.Get(k); err == nil {
		t.Error("should not have it", d, k)
	}

	if has, err := d.Has(k); err != nil {
		t.Error(err)
	} else if has {
		t.Error("should not have it", d, k)
	}
}
示例#3
0
文件: pin.go 项目: noscripter/go-ipfs
func loadSet(d ds.Datastore, k ds.Key, val interface{}) error {
	buf, err := d.Get(k)
	if err != nil {
		return err
	}

	bf, ok := buf.([]byte)
	if !ok {
		return errors.New("invalid pin set value in datastore")
	}
	return json.Unmarshal(bf, val)
}
示例#4
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func putRoutingRecord(ds datastore.Datastore, k key.Key, value *dhtpb.Record) error {
	data, err := proto.Marshal(value)
	if err != nil {
		return err
	}
	dskey := k.DsKey()
	// TODO namespace
	if err := ds.Put(dskey, data); err != nil {
		return err
	}
	return nil
}
示例#5
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func testHas(t *testing.T, d ds.Datastore, k ds.Key, v interface{}) {
	if v2, err := d.Get(k); err != nil {
		t.Error(err)
	} else if v2 != v {
		t.Error("value incorrect", d, k, v, v2)
	}

	if has, err := d.Has(k); err != nil {
		t.Error(err)
	} else if !has {
		t.Error("should have it", d, k, v)
	}
}
示例#6
0
func getRoutingProviders(ds datastore.Datastore, k key.Key) ([]*dhtpb.Message_Peer, error) {
	e := log.EventBegin(context.Background(), "getProviders", &k)
	defer e.Done()
	var providers []*dhtpb.Message_Peer
	if v, err := ds.Get(providerKey(k)); err == nil {
		if data, ok := v.([]byte); ok {
			var msg dhtpb.Message
			if err := proto.Unmarshal(data, &msg); err != nil {
				return nil, err
			}
			providers = append(providers, msg.GetProviderPeers()...)
		}
	}
	return providers, nil
}
示例#7
0
func getRoutingRecord(ds datastore.Datastore, k key.Key) (*dhtpb.Record, error) {
	dskey := k.DsKey()
	val, err := ds.Get(dskey)
	if err != nil {
		return nil, err
	}
	recordBytes, ok := val.([]byte)
	if !ok {
		return nil, fmt.Errorf("datastore had non byte-slice value for %v", dskey)
	}
	var record dhtpb.Record
	if err := proto.Unmarshal(recordBytes, &record); err != nil {
		return nil, errors.New("failed to unmarshal dht record from datastore")
	}
	return &record, nil
}
示例#8
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func putRoutingProviders(ds datastore.Datastore, k key.Key, newRecords []*dhtpb.Message_Peer) error {
	log.Event(context.Background(), "putRoutingProviders", &k)
	oldRecords, err := getRoutingProviders(ds, k)
	if err != nil {
		return err
	}
	mergedRecords := make(map[string]*dhtpb.Message_Peer)
	for _, provider := range oldRecords {
		mergedRecords[provider.GetId()] = provider // add original records
	}
	for _, provider := range newRecords {
		mergedRecords[provider.GetId()] = provider // overwrite old record if new exists
	}
	var protomsg dhtpb.Message
	protomsg.ProviderPeers = make([]*dhtpb.Message_Peer, 0, len(mergedRecords))
	for _, provider := range mergedRecords {
		protomsg.ProviderPeers = append(protomsg.ProviderPeers, provider)
	}
	data, err := proto.Marshal(&protomsg)
	if err != nil {
		return err
	}
	return ds.Put(providerKey(k), data)
}