lotus/markets/retrievaladapter/provider.go
2020-01-10 10:33:26 -08:00

49 lines
1.8 KiB
Go

package retrievaladapter
import (
"context"
"github.com/ipfs/go-cid"
blockstore "github.com/ipfs/go-ipfs-blockstore"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-fil-markets/retrievalmarket"
retrievaltoken "github.com/filecoin-project/go-fil-markets/shared/tokenamount"
retrievaltypes "github.com/filecoin-project/go-fil-markets/shared/types"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/markets/utils"
"github.com/filecoin-project/lotus/storage/sectorblocks"
)
type retrievalProviderNode struct {
sectorBlocks *sectorblocks.SectorBlocks
full api.FullNode
}
// NewRetrievalProviderNode returns a new node adapter for a retrieval provider that talks to the
// Lotus Node
func NewRetrievalProviderNode(sectorBlocks *sectorblocks.SectorBlocks, full api.FullNode) retrievalmarket.RetrievalProviderNode {
return &retrievalProviderNode{sectorBlocks, full}
}
func (rpn *retrievalProviderNode) GetPieceSize(pieceCid []byte) (uint64, error) {
asCid, err := cid.Cast(pieceCid)
if err != nil {
return 0, err
}
return rpn.sectorBlocks.GetSize(asCid)
}
func (rpn *retrievalProviderNode) SealedBlockstore(approveUnseal func() error) blockstore.Blockstore {
return rpn.sectorBlocks.SealedBlockstore(approveUnseal)
}
func (rpn *retrievalProviderNode) SavePaymentVoucher(ctx context.Context, paymentChannel address.Address, voucher *retrievaltypes.SignedVoucher, proof []byte, expectedAmount retrievaltoken.TokenAmount) (retrievaltoken.TokenAmount, error) {
localVoucher, err := utils.FromSharedSignedVoucher(voucher)
if err != nil {
return retrievaltoken.FromInt(0), err
}
added, err := rpn.full.PaychVoucherAdd(ctx, paymentChannel, localVoucher, proof, utils.FromSharedTokenAmount(expectedAmount))
return utils.ToSharedTokenAmount(added), err
}