lotus/chain/actors/builtin/paych/paych.go

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package paych
import (
"golang.org/x/xerrors"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/abi"
big "github.com/filecoin-project/go-state-types/big"
"github.com/filecoin-project/go-state-types/cbor"
builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
paych0 "github.com/filecoin-project/specs-actors/actors/builtin/paych"
"github.com/filecoin-project/lotus/chain/actors/adt"
"github.com/filecoin-project/lotus/chain/types"
)
// Load returns an abstract copy of payment channel state, irregardless of actor version
func Load(store adt.Store, act *types.Actor) (State, error) {
switch act.Code {
case builtin0.PaymentChannelActorCodeID:
out := state0{store: store}
err := store.Get(store.Context(), act.Head, &out)
if err != nil {
return nil, err
}
return &out, nil
}
return nil, xerrors.Errorf("unknown actor code %s", act.Code)
}
// State is an abstract version of payment channel state that works across
// versions
type State interface {
cbor.Marshaler
// Channel owner, who has funded the actor
From() (address.Address, error)
// Recipient of payouts from channel
To() (address.Address, error)
// Height at which the channel can be `Collected`
SettlingAt() (abi.ChainEpoch, error)
// Amount successfully redeemed through the payment channel, paid out on `Collect()`
ToSend() (abi.TokenAmount, error)
// Get total number of lanes
LaneCount() (uint64, error)
// Iterate lane states
ForEachLaneState(cb func(idx uint64, dl LaneState) error) error
}
// LaneState is an abstract copy of the state of a single lane
type LaneState interface {
Redeemed() (big.Int, error)
Nonce() (uint64, error)
}
type SignedVoucher = paych0.SignedVoucher
type ModVerifyParams = paych0.ModVerifyParams