92 lines
2.8 KiB
Go
92 lines
2.8 KiB
Go
package retrievaladapter
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import (
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"context"
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"io"
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"github.com/filecoin-project/lotus/api"
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"github.com/filecoin-project/lotus/chain/actors/builtin/paych"
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"github.com/filecoin-project/lotus/chain/types"
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sectorstorage "github.com/filecoin-project/lotus/extern/sector-storage"
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"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
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"github.com/filecoin-project/lotus/storage"
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"github.com/filecoin-project/go-address"
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"github.com/filecoin-project/go-fil-markets/retrievalmarket"
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"github.com/filecoin-project/go-fil-markets/shared"
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"github.com/filecoin-project/go-state-types/abi"
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specstorage "github.com/filecoin-project/specs-storage/storage"
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"github.com/ipfs/go-cid"
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)
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type retrievalProviderNode struct {
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miner *storage.Miner
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sealer sectorstorage.SectorManager
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full api.FullNode
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}
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// NewRetrievalProviderNode returns a new node adapter for a retrieval provider that talks to the
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// Lotus Node
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func NewRetrievalProviderNode(miner *storage.Miner, sealer sectorstorage.SectorManager, full api.FullNode) retrievalmarket.RetrievalProviderNode {
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return &retrievalProviderNode{miner, sealer, full}
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}
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func (rpn *retrievalProviderNode) GetMinerWorkerAddress(ctx context.Context, miner address.Address, tok shared.TipSetToken) (address.Address, error) {
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tsk, err := types.TipSetKeyFromBytes(tok)
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if err != nil {
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return address.Undef, err
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}
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mi, err := rpn.full.StateMinerInfo(ctx, miner, tsk)
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return mi.Worker, err
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}
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func (rpn *retrievalProviderNode) UnsealSector(ctx context.Context, sectorID abi.SectorNumber, offset abi.UnpaddedPieceSize, length abi.UnpaddedPieceSize) (io.ReadCloser, error) {
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si, err := rpn.miner.GetSectorInfo(sectorID)
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if err != nil {
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return nil, err
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}
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mid, err := address.IDFromAddress(rpn.miner.Address())
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if err != nil {
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return nil, err
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}
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ref := specstorage.SectorRef{
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ID: abi.SectorID{
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Miner: abi.ActorID(mid),
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Number: sectorID,
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},
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ProofType: si.SectorType,
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}
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r, w := io.Pipe()
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go func() {
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var commD cid.Cid
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if si.CommD != nil {
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commD = *si.CommD
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}
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err := rpn.sealer.ReadPiece(ctx, w, ref, storiface.UnpaddedByteIndex(offset), length, si.TicketValue, commD)
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_ = w.CloseWithError(err)
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}()
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return r, nil
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}
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func (rpn *retrievalProviderNode) SavePaymentVoucher(ctx context.Context, paymentChannel address.Address, voucher *paych.SignedVoucher, proof []byte, expectedAmount abi.TokenAmount, tok shared.TipSetToken) (abi.TokenAmount, error) {
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// TODO: respect the provided TipSetToken (a serialized TipSetKey) when
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// querying the chain
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added, err := rpn.full.PaychVoucherAdd(ctx, paymentChannel, voucher, proof, expectedAmount)
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return added, err
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}
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func (rpn *retrievalProviderNode) GetChainHead(ctx context.Context) (shared.TipSetToken, abi.ChainEpoch, error) {
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head, err := rpn.full.ChainHead(ctx)
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if err != nil {
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return nil, 0, err
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}
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return head.Key().Bytes(), head.Height(), nil
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}
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