lotus/node/impl/client/client.go

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package client
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import (
"context"
"fmt"
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"io"
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"os"
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"github.com/filecoin-project/go-state-types/dline"
datatransfer "github.com/filecoin-project/go-data-transfer"
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"github.com/filecoin-project/go-state-types/big"
"golang.org/x/xerrors"
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"github.com/ipfs/go-blockservice"
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"github.com/ipfs/go-cid"
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"github.com/ipfs/go-cidutil"
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chunker "github.com/ipfs/go-ipfs-chunker"
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offline "github.com/ipfs/go-ipfs-exchange-offline"
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files "github.com/ipfs/go-ipfs-files"
ipld "github.com/ipfs/go-ipld-format"
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"github.com/ipfs/go-merkledag"
unixfile "github.com/ipfs/go-unixfs/file"
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"github.com/ipfs/go-unixfs/importer/balanced"
ihelper "github.com/ipfs/go-unixfs/importer/helpers"
"github.com/ipld/go-car"
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basicnode "github.com/ipld/go-ipld-prime/node/basic"
"github.com/ipld/go-ipld-prime/traversal/selector"
"github.com/ipld/go-ipld-prime/traversal/selector/builder"
"github.com/libp2p/go-libp2p-core/host"
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"github.com/libp2p/go-libp2p-core/peer"
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mh "github.com/multiformats/go-multihash"
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"go.uber.org/fx"
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"github.com/filecoin-project/go-address"
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"github.com/filecoin-project/go-fil-markets/discovery"
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"github.com/filecoin-project/go-fil-markets/pieceio"
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"github.com/filecoin-project/go-fil-markets/retrievalmarket"
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rm "github.com/filecoin-project/go-fil-markets/retrievalmarket"
"github.com/filecoin-project/go-fil-markets/shared"
"github.com/filecoin-project/go-fil-markets/storagemarket"
"github.com/filecoin-project/go-multistore"
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"github.com/filecoin-project/go-padreader"
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"github.com/filecoin-project/go-state-types/abi"
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"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper"
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marketevents "github.com/filecoin-project/lotus/markets/loggers"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/store"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/markets/utils"
"github.com/filecoin-project/lotus/node/impl/full"
"github.com/filecoin-project/lotus/node/impl/paych"
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"github.com/filecoin-project/lotus/node/modules/dtypes"
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"github.com/filecoin-project/lotus/node/repo/importmgr"
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)
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var DefaultHashFunction = uint64(mh.BLAKE2B_MIN + 31)
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const dealStartBufferHours uint64 = 24
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type API struct {
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fx.In
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full.ChainAPI
full.StateAPI
full.WalletAPI
paych.PaychAPI
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SMDealClient storagemarket.StorageClient
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RetDiscovery discovery.PeerResolver
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Retrieval rm.RetrievalClient
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Chain *store.ChainStore
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Imports dtypes.ClientImportMgr
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CombinedBstore dtypes.ClientBlockstore // TODO: try to remove
RetrievalStoreMgr dtypes.ClientRetrievalStoreManager
DataTransfer dtypes.ClientDataTransfer
Host host.Host
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}
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func calcDealExpiration(minDuration uint64, md *dline.Info, startEpoch abi.ChainEpoch) abi.ChainEpoch {
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// Make sure we give some time for the miner to seal
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minExp := startEpoch + abi.ChainEpoch(minDuration)
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// Align on miners ProvingPeriodBoundary
return minExp + md.WPoStProvingPeriod - (minExp % md.WPoStProvingPeriod) + (md.PeriodStart % md.WPoStProvingPeriod) - 1
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}
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func (a *API) imgr() *importmgr.Mgr {
return a.Imports
}
func (a *API) ClientStartDeal(ctx context.Context, params *api.StartDealParams) (*cid.Cid, error) {
var storeID *multistore.StoreID
if params.Data.TransferType == storagemarket.TTGraphsync {
importIDs := a.imgr().List()
for _, importID := range importIDs {
info, err := a.imgr().Info(importID)
if err != nil {
continue
}
if info.Labels[importmgr.LRootCid] == "" {
continue
}
c, err := cid.Parse(info.Labels[importmgr.LRootCid])
if err != nil {
continue
}
if c.Equals(params.Data.Root) {
storeID = &importID //nolint
break
}
}
}
exist, err := a.WalletHas(ctx, params.Wallet)
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if err != nil {
return nil, xerrors.Errorf("failed getting addr from wallet: %w", params.Wallet)
}
if !exist {
return nil, xerrors.Errorf("provided address doesn't exist in wallet")
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}
mi, err := a.StateMinerInfo(ctx, params.Miner, types.EmptyTSK)
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if err != nil {
return nil, xerrors.Errorf("failed getting peer ID: %w", err)
}
md, err := a.StateMinerProvingDeadline(ctx, params.Miner, types.EmptyTSK)
if err != nil {
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return nil, xerrors.Errorf("failed getting miner's deadline info: %w", err)
}
rt, err := ffiwrapper.SealProofTypeFromSectorSize(mi.SectorSize)
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if err != nil {
return nil, xerrors.Errorf("bad sector size: %w", err)
}
if uint64(params.Data.PieceSize.Padded()) > uint64(mi.SectorSize) {
return nil, xerrors.New("data doesn't fit in a sector")
}
providerInfo := utils.NewStorageProviderInfo(params.Miner, mi.Worker, mi.SectorSize, *mi.PeerId, mi.Multiaddrs)
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dealStart := params.DealStartEpoch
if dealStart <= 0 { // unset, or explicitly 'epoch undefined'
ts, err := a.ChainHead(ctx)
if err != nil {
return nil, xerrors.Errorf("failed getting chain height: %w", err)
}
blocksPerHour := 60 * 60 / build.BlockDelaySecs
dealStart = ts.Height() + abi.ChainEpoch(dealStartBufferHours*blocksPerHour)
}
result, err := a.SMDealClient.ProposeStorageDeal(ctx, storagemarket.ProposeStorageDealParams{
Addr: params.Wallet,
Info: &providerInfo,
Data: params.Data,
StartEpoch: dealStart,
EndEpoch: calcDealExpiration(params.MinBlocksDuration, md, dealStart),
Price: params.EpochPrice,
Collateral: params.ProviderCollateral,
Rt: rt,
FastRetrieval: params.FastRetrieval,
VerifiedDeal: params.VerifiedDeal,
StoreID: storeID,
})
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if err != nil {
return nil, xerrors.Errorf("failed to start deal: %w", err)
}
return &result.ProposalCid, nil
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}
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func (a *API) ClientListDeals(ctx context.Context) ([]api.DealInfo, error) {
deals, err := a.SMDealClient.ListLocalDeals(ctx)
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if err != nil {
return nil, err
}
out := make([]api.DealInfo, len(deals))
for k, v := range deals {
out[k] = api.DealInfo{
ProposalCid: v.ProposalCid,
DataRef: v.DataRef,
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State: v.State,
Message: v.Message,
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Provider: v.Proposal.Provider,
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PieceCID: v.Proposal.PieceCID,
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Size: uint64(v.Proposal.PieceSize.Unpadded()),
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PricePerEpoch: v.Proposal.StoragePricePerEpoch,
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Duration: uint64(v.Proposal.Duration()),
DealID: v.DealID,
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CreationTime: v.CreationTime.Time(),
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}
}
return out, nil
}
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func (a *API) ClientGetDealInfo(ctx context.Context, d cid.Cid) (*api.DealInfo, error) {
v, err := a.SMDealClient.GetLocalDeal(ctx, d)
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if err != nil {
return nil, err
}
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return &api.DealInfo{
ProposalCid: v.ProposalCid,
State: v.State,
Message: v.Message,
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Provider: v.Proposal.Provider,
PieceCID: v.Proposal.PieceCID,
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Size: uint64(v.Proposal.PieceSize.Unpadded()),
PricePerEpoch: v.Proposal.StoragePricePerEpoch,
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Duration: uint64(v.Proposal.Duration()),
DealID: v.DealID,
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CreationTime: v.CreationTime.Time(),
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}, nil
}
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func (a *API) ClientGetDealUpdates(ctx context.Context) (<-chan api.DealInfo, error) {
updates := make(chan api.DealInfo)
unsub := a.SMDealClient.SubscribeToEvents(func(_ storagemarket.ClientEvent, deal storagemarket.ClientDeal) {
updates <- newDealInfo(deal)
})
go func() {
defer unsub()
<-ctx.Done()
}()
return updates, nil
}
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func (a *API) ClientHasLocal(ctx context.Context, root cid.Cid) (bool, error) {
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// TODO: check if we have the ENTIRE dag
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offExch := merkledag.NewDAGService(blockservice.New(a.Imports.Blockstore, offline.Exchange(a.Imports.Blockstore)))
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_, err := offExch.Get(ctx, root)
if err == ipld.ErrNotFound {
return false, nil
}
if err != nil {
return false, err
}
return true, nil
}
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func (a *API) ClientFindData(ctx context.Context, root cid.Cid, piece *cid.Cid) ([]api.QueryOffer, error) {
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peers, err := a.RetDiscovery.GetPeers(root)
if err != nil {
return nil, err
}
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out := make([]api.QueryOffer, 0, len(peers))
for _, p := range peers {
if piece != nil && !piece.Equals(*p.PieceCID) {
continue
}
out = append(out, a.makeRetrievalQuery(ctx, p, root, piece, rm.QueryParams{}))
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}
return out, nil
}
func (a *API) ClientMinerQueryOffer(ctx context.Context, miner address.Address, root cid.Cid, piece *cid.Cid) (api.QueryOffer, error) {
mi, err := a.StateMinerInfo(ctx, miner, types.EmptyTSK)
if err != nil {
return api.QueryOffer{}, err
}
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rp := rm.RetrievalPeer{
Address: miner,
ID: *mi.PeerId,
}
return a.makeRetrievalQuery(ctx, rp, root, piece, rm.QueryParams{}), nil
}
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func (a *API) makeRetrievalQuery(ctx context.Context, rp rm.RetrievalPeer, payload cid.Cid, piece *cid.Cid, qp rm.QueryParams) api.QueryOffer {
queryResponse, err := a.Retrieval.Query(ctx, rp, payload, qp)
if err != nil {
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return api.QueryOffer{Err: err.Error(), Miner: rp.Address, MinerPeer: rp}
}
var errStr string
switch queryResponse.Status {
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case rm.QueryResponseAvailable:
errStr = ""
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case rm.QueryResponseUnavailable:
errStr = fmt.Sprintf("retrieval query offer was unavailable: %s", queryResponse.Message)
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case rm.QueryResponseError:
errStr = fmt.Sprintf("retrieval query offer errored: %s", queryResponse.Message)
}
return api.QueryOffer{
Root: payload,
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Piece: piece,
Size: queryResponse.Size,
MinPrice: queryResponse.PieceRetrievalPrice(),
UnsealPrice: queryResponse.UnsealPrice,
PaymentInterval: queryResponse.MaxPaymentInterval,
PaymentIntervalIncrease: queryResponse.MaxPaymentIntervalIncrease,
Miner: queryResponse.PaymentAddress, // TODO: check
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MinerPeer: rp,
Err: errStr,
}
}
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func (a *API) ClientImport(ctx context.Context, ref api.FileRef) (*api.ImportRes, error) {
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id, st, err := a.imgr().NewStore()
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if err != nil {
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return nil, err
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}
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if err := a.imgr().AddLabel(id, importmgr.LSource, "import"); err != nil {
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return nil, err
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}
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if err := a.imgr().AddLabel(id, importmgr.LFileName, ref.Path); err != nil {
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return nil, err
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}
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nd, err := a.clientImport(ctx, ref, st)
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if err != nil {
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return nil, err
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}
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if err := a.imgr().AddLabel(id, importmgr.LRootCid, nd.String()); err != nil {
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return nil, err
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}
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return &api.ImportRes{
Root: nd,
ImportID: id,
}, nil
}
func (a *API) ClientRemoveImport(ctx context.Context, importID multistore.StoreID) error {
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return a.imgr().Remove(importID)
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}
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func (a *API) ClientImportLocal(ctx context.Context, f io.Reader) (cid.Cid, error) {
file := files.NewReaderFile(f)
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id, st, err := a.imgr().NewStore()
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if err != nil {
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return cid.Undef, err
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}
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if err := a.imgr().AddLabel(id, "source", "import-local"); err != nil {
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return cid.Cid{}, err
}
bufferedDS := ipld.NewBufferedDAG(ctx, st.DAG)
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prefix, err := merkledag.PrefixForCidVersion(1)
if err != nil {
return cid.Undef, err
}
prefix.MhType = DefaultHashFunction
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params := ihelper.DagBuilderParams{
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Maxlinks: build.UnixfsLinksPerLevel,
RawLeaves: true,
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CidBuilder: cidutil.InlineBuilder{
Builder: prefix,
Limit: 126,
},
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Dagserv: bufferedDS,
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}
db, err := params.New(chunker.NewSizeSplitter(file, int64(build.UnixfsChunkSize)))
if err != nil {
return cid.Undef, err
}
nd, err := balanced.Layout(db)
if err != nil {
return cid.Undef, err
}
if err := a.imgr().AddLabel(id, "root", nd.Cid().String()); err != nil {
return cid.Cid{}, err
}
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return nd.Cid(), bufferedDS.Commit()
}
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func (a *API) ClientListImports(ctx context.Context) ([]api.Import, error) {
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importIDs := a.imgr().List()
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out := make([]api.Import, len(importIDs))
for i, id := range importIDs {
info, err := a.imgr().Info(id)
if err != nil {
out[i] = api.Import{
Key: id,
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Err: xerrors.Errorf("getting info: %w", err).Error(),
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}
continue
}
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ai := api.Import{
Key: id,
Source: info.Labels[importmgr.LSource],
FilePath: info.Labels[importmgr.LFileName],
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}
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if info.Labels[importmgr.LRootCid] != "" {
c, err := cid.Parse(info.Labels[importmgr.LRootCid])
if err != nil {
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ai.Err = err.Error()
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} else {
ai.Root = &c
}
}
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out[i] = ai
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}
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return out, nil
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}
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func (a *API) ClientRetrieve(ctx context.Context, order api.RetrievalOrder, ref *api.FileRef) error {
events := make(chan marketevents.RetrievalEvent)
go a.clientRetrieve(ctx, order, ref, events)
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for {
select {
case evt, ok := <-events:
if !ok { // done successfully
return nil
}
if evt.Err != "" {
return xerrors.Errorf("retrieval failed: %s", evt.Err)
}
case <-ctx.Done():
return xerrors.Errorf("retrieval timed out")
}
}
}
func (a *API) ClientRetrieveWithEvents(ctx context.Context, order api.RetrievalOrder, ref *api.FileRef) (<-chan marketevents.RetrievalEvent, error) {
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events := make(chan marketevents.RetrievalEvent)
go a.clientRetrieve(ctx, order, ref, events)
return events, nil
}
type retrievalSubscribeEvent struct {
event rm.ClientEvent
state rm.ClientDealState
}
func readSubscribeEvents(ctx context.Context, subscribeEvents chan retrievalSubscribeEvent, events chan marketevents.RetrievalEvent) error {
for {
var subscribeEvent retrievalSubscribeEvent
select {
case <-ctx.Done():
return xerrors.New("Retrieval Timed Out")
case subscribeEvent = <-subscribeEvents:
}
select {
case <-ctx.Done():
return xerrors.New("Retrieval Timed Out")
case events <- marketevents.RetrievalEvent{
Event: subscribeEvent.event,
Status: subscribeEvent.state.Status,
BytesReceived: subscribeEvent.state.TotalReceived,
FundsSpent: subscribeEvent.state.FundsSpent,
}:
}
state := subscribeEvent.state
switch state.Status {
case rm.DealStatusCompleted:
return nil
case rm.DealStatusRejected:
return xerrors.Errorf("Retrieval Proposal Rejected: %s", state.Message)
case
rm.DealStatusDealNotFound,
rm.DealStatusErrored:
return xerrors.Errorf("Retrieval Error: %s", state.Message)
}
}
}
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func (a *API) clientRetrieve(ctx context.Context, order api.RetrievalOrder, ref *api.FileRef, events chan marketevents.RetrievalEvent) {
defer close(events)
finish := func(e error) {
if e != nil {
events <- marketevents.RetrievalEvent{Err: e.Error(), FundsSpent: big.Zero()}
}
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}
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if order.MinerPeer.ID == "" {
mi, err := a.StateMinerInfo(ctx, order.Miner, types.EmptyTSK)
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if err != nil {
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finish(err)
return
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}
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order.MinerPeer = retrievalmarket.RetrievalPeer{
ID: *mi.PeerId,
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Address: order.Miner,
}
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}
if order.Size == 0 {
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finish(xerrors.Errorf("cannot make retrieval deal for zero bytes"))
return
}
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/*id, st, err := a.imgr().NewStore()
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if err != nil {
return err
}
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if err := a.imgr().AddLabel(id, "source", "retrieval"); err != nil {
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return err
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}*/
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var dealID retrievalmarket.DealID
subscribeEvents := make(chan retrievalSubscribeEvent, 1)
subscribeCtx, cancel := context.WithCancel(ctx)
defer cancel()
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unsubscribe := a.Retrieval.SubscribeToEvents(func(event rm.ClientEvent, state rm.ClientDealState) {
if state.PayloadCID.Equals(order.Root) && state.ID == dealID {
select {
case <-subscribeCtx.Done():
case subscribeEvents <- retrievalSubscribeEvent{event, state}:
}
}
})
ppb := types.BigDiv(order.Total, types.NewInt(order.Size))
params, err := rm.NewParamsV1(ppb, order.PaymentInterval, order.PaymentIntervalIncrease, shared.AllSelector(), order.Piece, order.UnsealPrice)
if err != nil {
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finish(xerrors.Errorf("Error in retrieval params: %s", err))
return
}
store, err := a.RetrievalStoreMgr.NewStore()
if err != nil {
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finish(xerrors.Errorf("Error setting up new store: %w", err))
return
}
defer func() {
_ = a.RetrievalStoreMgr.ReleaseStore(store)
}()
dealID, err = a.Retrieval.Retrieve(
ctx,
order.Root,
params,
order.Total,
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order.MinerPeer,
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order.Client,
order.Miner,
store.StoreID())
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if err != nil {
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finish(xerrors.Errorf("Retrieve failed: %w", err))
return
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}
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err = readSubscribeEvents(ctx, subscribeEvents, events)
unsubscribe()
if err != nil {
finish(xerrors.Errorf("Retrieve: %w", err))
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return
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}
// If ref is nil, it only fetches the data into the configured blockstore.
if ref == nil {
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finish(nil)
return
}
rdag := store.DAGService()
if ref.IsCAR {
f, err := os.OpenFile(ref.Path, os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
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finish(err)
return
}
err = car.WriteCar(ctx, rdag, []cid.Cid{order.Root}, f)
if err != nil {
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finish(err)
return
}
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finish(f.Close())
return
}
nd, err := rdag.Get(ctx, order.Root)
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if err != nil {
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finish(xerrors.Errorf("ClientRetrieve: %w", err))
return
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}
file, err := unixfile.NewUnixfsFile(ctx, rdag, nd)
if err != nil {
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finish(xerrors.Errorf("ClientRetrieve: %w", err))
return
}
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finish(files.WriteTo(file, ref.Path))
return
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}
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func (a *API) ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*storagemarket.StorageAsk, error) {
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mi, err := a.StateMinerInfo(ctx, miner, types.EmptyTSK)
if err != nil {
return nil, xerrors.Errorf("failed getting miner info: %w", err)
}
info := utils.NewStorageProviderInfo(miner, mi.Worker, mi.SectorSize, p, mi.Multiaddrs)
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ask, err := a.SMDealClient.GetAsk(ctx, info)
if err != nil {
return nil, err
}
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return ask, nil
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}
func (a *API) ClientCalcCommP(ctx context.Context, inpath string) (*api.CommPRet, error) {
// Hard-code the sector size to 32GiB, because:
// - pieceio.GeneratePieceCommitment requires a RegisteredSealProof
// - commP itself is sector-size independent, with rather low probability of that changing
// ( note how the final rust call is identical for every RegSP type )
// https://github.com/filecoin-project/rust-filecoin-proofs-api/blob/v5.0.0/src/seal.rs#L1040-L1050
//
// IF/WHEN this changes in the future we will have to be able to calculate
// "old style" commP, and thus will need to introduce a version switch or similar
arbitrarySectorSize := abi.SectorSize(32 << 30)
rt, err := ffiwrapper.SealProofTypeFromSectorSize(arbitrarySectorSize)
if err != nil {
return nil, xerrors.Errorf("bad sector size: %w", err)
}
rdr, err := os.Open(inpath)
if err != nil {
return nil, err
}
defer rdr.Close() //nolint:errcheck
stat, err := rdr.Stat()
if err != nil {
return nil, err
}
commP, pieceSize, err := pieceio.GeneratePieceCommitment(rt, rdr, uint64(stat.Size()))
if err != nil {
return nil, xerrors.Errorf("computing commP failed: %w", err)
}
return &api.CommPRet{
Root: commP,
Size: pieceSize,
}, nil
}
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type lenWriter int64
func (w *lenWriter) Write(p []byte) (n int, err error) {
*w += lenWriter(len(p))
return len(p), nil
}
func (a *API) ClientDealSize(ctx context.Context, root cid.Cid) (api.DataSize, error) {
dag := merkledag.NewDAGService(blockservice.New(a.CombinedBstore, offline.Exchange(a.CombinedBstore)))
w := lenWriter(0)
err := car.WriteCar(ctx, dag, []cid.Cid{root}, &w)
if err != nil {
return api.DataSize{}, err
}
up := padreader.PaddedSize(uint64(w))
return api.DataSize{
PayloadSize: int64(w),
PieceSize: up.Padded(),
}, nil
}
func (a *API) ClientGenCar(ctx context.Context, ref api.FileRef, outputPath string) error {
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id, st, err := a.imgr().NewStore()
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if err != nil {
return err
}
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if err := a.imgr().AddLabel(id, "source", "gen-car"); err != nil {
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return err
}
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bufferedDS := ipld.NewBufferedDAG(ctx, st.DAG)
c, err := a.clientImport(ctx, ref, st)
if err != nil {
return err
}
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// TODO: does that defer mean to remove the whole blockstore?
defer bufferedDS.Remove(ctx, c) //nolint:errcheck
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ssb := builder.NewSelectorSpecBuilder(basicnode.Prototype.Any)
// entire DAG selector
allSelector := ssb.ExploreRecursive(selector.RecursionLimitNone(),
ssb.ExploreAll(ssb.ExploreRecursiveEdge())).Node()
f, err := os.Create(outputPath)
if err != nil {
return err
}
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sc := car.NewSelectiveCar(ctx, st.Bstore, []car.Dag{{Root: c, Selector: allSelector}})
if err = sc.Write(f); err != nil {
return err
}
return f.Close()
}
func (a *API) clientImport(ctx context.Context, ref api.FileRef, store *multistore.Store) (cid.Cid, error) {
f, err := os.Open(ref.Path)
if err != nil {
return cid.Undef, err
}
defer f.Close() //nolint:errcheck
stat, err := f.Stat()
if err != nil {
return cid.Undef, err
}
file, err := files.NewReaderPathFile(ref.Path, f, stat)
if err != nil {
return cid.Undef, err
}
if ref.IsCAR {
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var st car.Store
if store.Fstore == nil {
st = store.Bstore
} else {
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st = store.Fstore
}
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result, err := car.LoadCar(st, file)
if err != nil {
return cid.Undef, err
}
if len(result.Roots) != 1 {
return cid.Undef, xerrors.New("cannot import car with more than one root")
}
return result.Roots[0], nil
}
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bufDs := ipld.NewBufferedDAG(ctx, store.DAG)
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prefix, err := merkledag.PrefixForCidVersion(1)
if err != nil {
return cid.Undef, err
}
prefix.MhType = DefaultHashFunction
params := ihelper.DagBuilderParams{
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Maxlinks: build.UnixfsLinksPerLevel,
RawLeaves: true,
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CidBuilder: cidutil.InlineBuilder{
Builder: prefix,
Limit: 126,
},
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Dagserv: bufDs,
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NoCopy: true,
}
db, err := params.New(chunker.NewSizeSplitter(file, int64(build.UnixfsChunkSize)))
if err != nil {
return cid.Undef, err
}
nd, err := balanced.Layout(db)
if err != nil {
return cid.Undef, err
}
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if err := bufDs.Commit(); err != nil {
return cid.Undef, err
}
return nd.Cid(), nil
}
func (a *API) ClientListDataTransfers(ctx context.Context) ([]api.DataTransferChannel, error) {
inProgressChannels, err := a.DataTransfer.InProgressChannels(ctx)
if err != nil {
return nil, err
}
apiChannels := make([]api.DataTransferChannel, 0, len(inProgressChannels))
for _, channelState := range inProgressChannels {
apiChannels = append(apiChannels, api.NewDataTransferChannel(a.Host.ID(), channelState))
}
return apiChannels, nil
}
func (a *API) ClientDataTransferUpdates(ctx context.Context) (<-chan api.DataTransferChannel, error) {
channels := make(chan api.DataTransferChannel)
unsub := a.DataTransfer.SubscribeToEvents(func(evt datatransfer.Event, channelState datatransfer.ChannelState) {
channel := api.NewDataTransferChannel(a.Host.ID(), channelState)
select {
case <-ctx.Done():
case channels <- channel:
}
})
go func() {
defer unsub()
<-ctx.Done()
}()
return channels, nil
}
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func newDealInfo(v storagemarket.ClientDeal) api.DealInfo {
return api.DealInfo{
ProposalCid: v.ProposalCid,
DataRef: v.DataRef,
State: v.State,
Message: v.Message,
Provider: v.Proposal.Provider,
PieceCID: v.Proposal.PieceCID,
Size: uint64(v.Proposal.PieceSize.Unpadded()),
PricePerEpoch: v.Proposal.StoragePricePerEpoch,
Duration: uint64(v.Proposal.Duration()),
DealID: v.DealID,
CreationTime: v.CreationTime.Time(),
}
}
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func (a *API) ClientRetrieveTryRestartInsufficientFunds(ctx context.Context, paymentChannel address.Address) error {
return a.Retrieval.TryRestartInsufficientFunds(paymentChannel)
}