75 lines
2.5 KiB
Go
75 lines
2.5 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/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-sectorbuilder"
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"github.com/filecoin-project/specs-actors/actors/abi"
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"github.com/filecoin-project/specs-actors/actors/builtin/paych"
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"github.com/filecoin-project/lotus/api"
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"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/lotus/storage"
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"github.com/filecoin-project/lotus/storage/sealmgr"
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)
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type retrievalProviderNode struct {
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miner *storage.Miner
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sealer sealmgr.Manager
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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 sealmgr.Manager, 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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addr, err := rpn.full.StateMinerWorker(ctx, miner, tsk)
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return addr, err
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}
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func (rpn *retrievalProviderNode) UnsealSector(ctx context.Context, sectorID uint64, offset uint64, length uint64) (io.ReadCloser, error) {
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si, err := rpn.miner.GetSectorInfo(abi.SectorNumber(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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sid := abi.SectorID{
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Miner: abi.ActorID(mid),
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Number: abi.SectorNumber(sectorID),
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}
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return rpn.sealer.ReadPieceFromSealedSector(ctx, sid, sectorbuilder.UnpaddedByteIndex(offset), abi.UnpaddedPieceSize(length), si.Ticket.Value, *si.CommD)
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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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