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https://github.com/ethereum/go-ethereum.git
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65 lines
2.1 KiB
Go
65 lines
2.1 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package swap
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/p2p/discover"
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"github.com/ethereum/go-ethereum/swarm/state"
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)
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type ChequeManager struct {
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stateStore state.Store
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serialPerNode map[discover.NodeID]uint64
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openDebitCheques map[discover.NodeID][]*Cheque
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openCreditCheques map[discover.NodeID][]*Cheque
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}
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type Cheque struct {
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serial uint64
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timeout uint64
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amount *big.Int
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sumCumulated *big.Int
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beneficiary discover.NodeID //this should probably be common.Address?
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}
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func NewChequeManager(stateStore state.Store) *ChequeManager {
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return &ChequeManager{
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stateStore: stateStore,
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//TODO: restore from state store
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serialPerNode: make(map[discover.NodeID]uint64),
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openDebitCheques: make(map[discover.NodeID][]*Cheque),
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openCreditCheques: make(map[discover.NodeID][]*Cheque),
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}
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}
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func (mgr *ChequeManager) CreateCheque(beneficiary discover.NodeID, amount *big.Int) *Cheque {
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mgr.serialPerNode[beneficiary]++
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cheque := &Cheque{
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serial: mgr.serialPerNode[beneficiary],
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beneficiary: beneficiary,
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amount: amount,
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}
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openCheques := mgr.openDebitCheques[beneficiary]
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if openCheques == nil {
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openCheques = make([]*Cheque, 0)
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}
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openCheques = append(openCheques, cheque)
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mgr.openDebitCheques[beneficiary] = openCheques
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return cheque
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}
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