lotus/chain/deals/cbor_gen.go
hannahhoward 61e2568b8d feat(datatransfer): implement and extract
feat(datatransfer): setup implementation path

Sets up a path to implementation, offering both the dagservice implementation and a future graphsync
implement, establishes message interfaces and network layer, and isolates the datatransfer module
from the app

WIP using CBOR encoding for dataxfermsg

* Bring cbor-gen stuff into datatransfer package
* make transferRequest private struct
* add transferResponse + funcs
* Rename VoucherID to VoucherType
* more tests passing

WIP trying out some stuff
* Embed request/response in message so all the interfaces work AND the CBOR unmarshaling works: this is more like the spec anyway
* get rid of pb stuff

all message tests passing, some others in datatransfer

Some cleanup for PR

Cleanup for PR, clarifying and additional comments

mod tidy

Respond to PR comments:
* Make DataTransferRequest/Response be returned in from Net
* Regenerate cbor_gen and fix the generator caller so it works better
* Please the linters

Fix tests

Initiate push and pull requests (#536)

* add issue link for data TransferID generation
* comment out failing but not relevant tests
* finish voucher rename from Identifier --> Type

tests passing

cleanup for PR

remove unused fmt import in graphsync_test

a better reflection

send data transfer response

other tests passing

feat(datatransfer): milestone 2 infrastructure

Setup test path for all tickets for milestone 2

responses alert subscribers when request is not accepted (#607)

Graphsync response is scheduled when a valid push request is received (#625)

fix(datatransfer): fix tests

fix an error with read buffers in tests

fix(deps): fix go.sum

Feat/dt graphsync pullreqs (#627)

* graphsync responses to pull requests

Feat/dt initiator cleanup (#645)

* ChannelID.To --> ChannelID.Initiator
* We now store our peer ID (from host.ID()) so it can be used when creating ChannelIDs.
* InProgressChannels returns all of impl.channels, currently just for testing
* Implements go-data-transfer issue
* Some assertions were changed based on the above.
* Renamed some variables and added some assertions based on the new understanding
* Updated SHA for graphsync module
* Updated fakeGraphSync test structs to use new interfaces from new SHA above

Techdebt/dt split graphsync impl receiver (#651)

* Split up graphsyncImpl and graphsyncReceiver
* rename graphsync to utils

DTM sends data over graphsync for validated push requests (#665)

* create channels when a request is received. register push request hook with graphsync. fix tests.
* better NewReaders
* use mutex lock around impl.channels access
* fix(datatransfer): fix test uncertainty
* fix a data race and also don't use random bytes in basic block which can fail
* privatize 3 funcs

with @hannahhoward

Feat/dt gs pullrequests (#693)

* Implements DTM Sends Data Over Graphsync For Validated Pull Requests
* rename a field in a test struct
* refactor a couple of private functions (one was refactored out of existence)

Feat/dt subscribe, file Xfer round trip (#720)

Implements the rest of Subscriber Is Notified When Request Completed #24:
* send a graphsync message within a go func and consume responses until error or transfer is complete.
* notify subscribers of results.
* Rename datatransfer.Event to EventCode.
* datatransfer.Event is now a struct that includes a message and a timestamp as well as the Event.Code int, formerly Event, update all uses
* Add extension data to graphsync request hook, gsReq
* rename sendRequest to sendDtRequest, to distinguish it from sendGsRequest, where Dt = datatransfer, Gs = graphsync
* use a mutex lock for last transfer ID
* obey the linter

Don't respond with error in gsReqRcdHook when we can't find the datatransfer extension. (#754)

* update to correct graphsync version, update tests & code to call the new graphsync hooks
* getExtensionData returns an empty struct + nil if we can't find our extension
* Don't respond with error when we can't find the extension.
* Test for same
* mod tidy

minor fix to go.sum

feat(datatransfer): switch to graphsync implementation

Move over to real graphsync implementation of data transfer, add constructors for graphsync
instances on client and miner side

fix(datatransfer): Fix validators

Validators were checking payload cid against commP -- which are not the same any more. Added a
payloadCid to client deal to maintain the record, fixed validator logic

Feat/dt extraction use go-fil-components/datatransfer (#770)

* Initial commit after changing to go-fil-components/datatransfer
* blow away the datatransfer dir
* use go-fil-components master after its PR #1 was merged
* go mod tidy

use a package

updates after rebase with master
2020-01-08 14:19:28 +01:00

902 lines
18 KiB
Go

package deals
import (
"fmt"
"io"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/types"
"github.com/libp2p/go-libp2p-core/peer"
cbg "github.com/whyrusleeping/cbor-gen"
xerrors "golang.org/x/xerrors"
)
// Code generated by github.com/whyrusleeping/cbor-gen. DO NOT EDIT.
var _ = xerrors.Errorf
func (t *AskRequest) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{129}); err != nil {
return err
}
// t.Miner (address.Address) (struct)
if err := t.Miner.MarshalCBOR(w); err != nil {
return err
}
return nil
}
func (t *AskRequest) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 1 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.Miner (address.Address) (struct)
{
if err := t.Miner.UnmarshalCBOR(br); err != nil {
return err
}
}
return nil
}
func (t *AskResponse) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{129}); err != nil {
return err
}
// t.Ask (types.SignedStorageAsk) (struct)
if err := t.Ask.MarshalCBOR(w); err != nil {
return err
}
return nil
}
func (t *AskResponse) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 1 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.Ask (types.SignedStorageAsk) (struct)
{
pb, err := br.PeekByte()
if err != nil {
return err
}
if pb == cbg.CborNull[0] {
var nbuf [1]byte
if _, err := br.Read(nbuf[:]); err != nil {
return err
}
} else {
t.Ask = new(types.SignedStorageAsk)
if err := t.Ask.UnmarshalCBOR(br); err != nil {
return err
}
}
}
return nil
}
func (t *Proposal) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{130}); err != nil {
return err
}
// t.DealProposal (actors.StorageDealProposal) (struct)
if err := t.DealProposal.MarshalCBOR(w); err != nil {
return err
}
// t.Piece (cid.Cid) (struct)
if err := cbg.WriteCid(w, t.Piece); err != nil {
return xerrors.Errorf("failed to write cid field t.Piece: %w", err)
}
return nil
}
func (t *Proposal) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 2 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.DealProposal (actors.StorageDealProposal) (struct)
{
pb, err := br.PeekByte()
if err != nil {
return err
}
if pb == cbg.CborNull[0] {
var nbuf [1]byte
if _, err := br.Read(nbuf[:]); err != nil {
return err
}
} else {
t.DealProposal = new(actors.StorageDealProposal)
if err := t.DealProposal.UnmarshalCBOR(br); err != nil {
return err
}
}
}
// t.Piece (cid.Cid) (struct)
{
c, err := cbg.ReadCid(br)
if err != nil {
return xerrors.Errorf("failed to read cid field t.Piece: %w", err)
}
t.Piece = c
}
return nil
}
func (t *Response) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{132}); err != nil {
return err
}
// t.State (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.State))); err != nil {
return err
}
// t.Message (string) (string)
if len(t.Message) > cbg.MaxLength {
return xerrors.Errorf("Value in field t.Message was too long")
}
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajTextString, uint64(len(t.Message)))); err != nil {
return err
}
if _, err := w.Write([]byte(t.Message)); err != nil {
return err
}
// t.Proposal (cid.Cid) (struct)
if err := cbg.WriteCid(w, t.Proposal); err != nil {
return xerrors.Errorf("failed to write cid field t.Proposal: %w", err)
}
// t.StorageDealSubmission (types.SignedMessage) (struct)
if err := t.StorageDealSubmission.MarshalCBOR(w); err != nil {
return err
}
return nil
}
func (t *Response) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 4 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.State (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.State = uint64(extra)
// t.Message (string) (string)
{
sval, err := cbg.ReadString(br)
if err != nil {
return err
}
t.Message = string(sval)
}
// t.Proposal (cid.Cid) (struct)
{
c, err := cbg.ReadCid(br)
if err != nil {
return xerrors.Errorf("failed to read cid field t.Proposal: %w", err)
}
t.Proposal = c
}
// t.StorageDealSubmission (types.SignedMessage) (struct)
{
pb, err := br.PeekByte()
if err != nil {
return err
}
if pb == cbg.CborNull[0] {
var nbuf [1]byte
if _, err := br.Read(nbuf[:]); err != nil {
return err
}
} else {
t.StorageDealSubmission = new(types.SignedMessage)
if err := t.StorageDealSubmission.UnmarshalCBOR(br); err != nil {
return err
}
}
}
return nil
}
func (t *SignedResponse) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{130}); err != nil {
return err
}
// t.Response (deals.Response) (struct)
if err := t.Response.MarshalCBOR(w); err != nil {
return err
}
// t.Signature (types.Signature) (struct)
if err := t.Signature.MarshalCBOR(w); err != nil {
return err
}
return nil
}
func (t *SignedResponse) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 2 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.Response (deals.Response) (struct)
{
if err := t.Response.UnmarshalCBOR(br); err != nil {
return err
}
}
// t.Signature (types.Signature) (struct)
{
pb, err := br.PeekByte()
if err != nil {
return err
}
if pb == cbg.CborNull[0] {
var nbuf [1]byte
if _, err := br.Read(nbuf[:]); err != nil {
return err
}
} else {
t.Signature = new(types.Signature)
if err := t.Signature.UnmarshalCBOR(br); err != nil {
return err
}
}
}
return nil
}
func (t *ClientDealProposal) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{136}); err != nil {
return err
}
// t.Data (cid.Cid) (struct)
if err := cbg.WriteCid(w, t.Data); err != nil {
return xerrors.Errorf("failed to write cid field t.Data: %w", err)
}
// t.PricePerEpoch (types.BigInt) (struct)
if err := t.PricePerEpoch.MarshalCBOR(w); err != nil {
return err
}
// t.ProposalExpiration (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.ProposalExpiration))); err != nil {
return err
}
// t.Duration (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.Duration))); err != nil {
return err
}
// t.ProviderAddress (address.Address) (struct)
if err := t.ProviderAddress.MarshalCBOR(w); err != nil {
return err
}
// t.Client (address.Address) (struct)
if err := t.Client.MarshalCBOR(w); err != nil {
return err
}
// t.MinerWorker (address.Address) (struct)
if err := t.MinerWorker.MarshalCBOR(w); err != nil {
return err
}
// t.MinerID (peer.ID) (string)
if len(t.MinerID) > cbg.MaxLength {
return xerrors.Errorf("Value in field t.MinerID was too long")
}
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajTextString, uint64(len(t.MinerID)))); err != nil {
return err
}
if _, err := w.Write([]byte(t.MinerID)); err != nil {
return err
}
return nil
}
func (t *ClientDealProposal) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 8 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.Data (cid.Cid) (struct)
{
c, err := cbg.ReadCid(br)
if err != nil {
return xerrors.Errorf("failed to read cid field t.Data: %w", err)
}
t.Data = c
}
// t.PricePerEpoch (types.BigInt) (struct)
{
if err := t.PricePerEpoch.UnmarshalCBOR(br); err != nil {
return err
}
}
// t.ProposalExpiration (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.ProposalExpiration = uint64(extra)
// t.Duration (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.Duration = uint64(extra)
// t.ProviderAddress (address.Address) (struct)
{
if err := t.ProviderAddress.UnmarshalCBOR(br); err != nil {
return err
}
}
// t.Client (address.Address) (struct)
{
if err := t.Client.UnmarshalCBOR(br); err != nil {
return err
}
}
// t.MinerWorker (address.Address) (struct)
{
if err := t.MinerWorker.UnmarshalCBOR(br); err != nil {
return err
}
}
// t.MinerID (peer.ID) (string)
{
sval, err := cbg.ReadString(br)
if err != nil {
return err
}
t.MinerID = peer.ID(sval)
}
return nil
}
func (t *ClientDeal) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{136}); err != nil {
return err
}
// t.ProposalCid (cid.Cid) (struct)
if err := cbg.WriteCid(w, t.ProposalCid); err != nil {
return xerrors.Errorf("failed to write cid field t.ProposalCid: %w", err)
}
// t.Proposal (actors.StorageDealProposal) (struct)
if err := t.Proposal.MarshalCBOR(w); err != nil {
return err
}
// t.State (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.State))); err != nil {
return err
}
// t.Miner (peer.ID) (string)
if len(t.Miner) > cbg.MaxLength {
return xerrors.Errorf("Value in field t.Miner was too long")
}
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajTextString, uint64(len(t.Miner)))); err != nil {
return err
}
if _, err := w.Write([]byte(t.Miner)); err != nil {
return err
}
// t.MinerWorker (address.Address) (struct)
if err := t.MinerWorker.MarshalCBOR(w); err != nil {
return err
}
// t.DealID (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.DealID))); err != nil {
return err
}
// t.PayloadCid (cid.Cid) (struct)
if err := cbg.WriteCid(w, t.PayloadCid); err != nil {
return xerrors.Errorf("failed to write cid field t.PayloadCid: %w", err)
}
// t.PublishMessage (types.SignedMessage) (struct)
if err := t.PublishMessage.MarshalCBOR(w); err != nil {
return err
}
return nil
}
func (t *ClientDeal) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 8 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.ProposalCid (cid.Cid) (struct)
{
c, err := cbg.ReadCid(br)
if err != nil {
return xerrors.Errorf("failed to read cid field t.ProposalCid: %w", err)
}
t.ProposalCid = c
}
// t.Proposal (actors.StorageDealProposal) (struct)
{
if err := t.Proposal.UnmarshalCBOR(br); err != nil {
return err
}
}
// t.State (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.State = uint64(extra)
// t.Miner (peer.ID) (string)
{
sval, err := cbg.ReadString(br)
if err != nil {
return err
}
t.Miner = peer.ID(sval)
}
// t.MinerWorker (address.Address) (struct)
{
if err := t.MinerWorker.UnmarshalCBOR(br); err != nil {
return err
}
}
// t.DealID (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.DealID = uint64(extra)
// t.PayloadCid (cid.Cid) (struct)
{
c, err := cbg.ReadCid(br)
if err != nil {
return xerrors.Errorf("failed to read cid field t.PayloadCid: %w", err)
}
t.PayloadCid = c
}
// t.PublishMessage (types.SignedMessage) (struct)
{
pb, err := br.PeekByte()
if err != nil {
return err
}
if pb == cbg.CborNull[0] {
var nbuf [1]byte
if _, err := br.Read(nbuf[:]); err != nil {
return err
}
} else {
t.PublishMessage = new(types.SignedMessage)
if err := t.PublishMessage.UnmarshalCBOR(br); err != nil {
return err
}
}
}
return nil
}
func (t *MinerDeal) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{135}); err != nil {
return err
}
// t.Client (peer.ID) (string)
if len(t.Client) > cbg.MaxLength {
return xerrors.Errorf("Value in field t.Client was too long")
}
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajTextString, uint64(len(t.Client)))); err != nil {
return err
}
if _, err := w.Write([]byte(t.Client)); err != nil {
return err
}
// t.Proposal (actors.StorageDealProposal) (struct)
if err := t.Proposal.MarshalCBOR(w); err != nil {
return err
}
// t.ProposalCid (cid.Cid) (struct)
if err := cbg.WriteCid(w, t.ProposalCid); err != nil {
return xerrors.Errorf("failed to write cid field t.ProposalCid: %w", err)
}
// t.State (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.State))); err != nil {
return err
}
// t.Ref (cid.Cid) (struct)
if err := cbg.WriteCid(w, t.Ref); err != nil {
return xerrors.Errorf("failed to write cid field t.Ref: %w", err)
}
// t.DealID (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.DealID))); err != nil {
return err
}
// t.SectorID (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.SectorID))); err != nil {
return err
}
return nil
}
func (t *MinerDeal) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 7 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.Client (peer.ID) (string)
{
sval, err := cbg.ReadString(br)
if err != nil {
return err
}
t.Client = peer.ID(sval)
}
// t.Proposal (actors.StorageDealProposal) (struct)
{
if err := t.Proposal.UnmarshalCBOR(br); err != nil {
return err
}
}
// t.ProposalCid (cid.Cid) (struct)
{
c, err := cbg.ReadCid(br)
if err != nil {
return xerrors.Errorf("failed to read cid field t.ProposalCid: %w", err)
}
t.ProposalCid = c
}
// t.State (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.State = uint64(extra)
// t.Ref (cid.Cid) (struct)
{
c, err := cbg.ReadCid(br)
if err != nil {
return xerrors.Errorf("failed to read cid field t.Ref: %w", err)
}
t.Ref = c
}
// t.DealID (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.DealID = uint64(extra)
// t.SectorID (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.SectorID = uint64(extra)
return nil
}
func (t *StorageDataTransferVoucher) MarshalCBOR(w io.Writer) error {
if t == nil {
_, err := w.Write(cbg.CborNull)
return err
}
if _, err := w.Write([]byte{130}); err != nil {
return err
}
// t.Proposal (cid.Cid) (struct)
if err := cbg.WriteCid(w, t.Proposal); err != nil {
return xerrors.Errorf("failed to write cid field t.Proposal: %w", err)
}
// t.DealID (uint64) (uint64)
if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, uint64(t.DealID))); err != nil {
return err
}
return nil
}
func (t *StorageDataTransferVoucher) UnmarshalCBOR(r io.Reader) error {
br := cbg.GetPeeker(r)
maj, extra, err := cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajArray {
return fmt.Errorf("cbor input should be of type array")
}
if extra != 2 {
return fmt.Errorf("cbor input had wrong number of fields")
}
// t.Proposal (cid.Cid) (struct)
{
c, err := cbg.ReadCid(br)
if err != nil {
return xerrors.Errorf("failed to read cid field t.Proposal: %w", err)
}
t.Proposal = c
}
// t.DealID (uint64) (uint64)
maj, extra, err = cbg.CborReadHeader(br)
if err != nil {
return err
}
if maj != cbg.MajUnsignedInt {
return fmt.Errorf("wrong type for uint64 field")
}
t.DealID = uint64(extra)
return nil
}