mirror of https://github.com/poanetwork/quorum.git
116 lines
2.9 KiB
Go
116 lines
2.9 KiB
Go
// Copyright 2017 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 core
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import (
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"fmt"
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"math/big"
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"strings"
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"sync"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/istanbul"
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)
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// Construct a new message set to accumulate messages for given sequence/view number.
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func newMessageSet(valSet istanbul.ValidatorSet) *messageSet {
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return &messageSet{
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view: &istanbul.View{
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Round: new(big.Int),
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Sequence: new(big.Int),
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},
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messagesMu: new(sync.Mutex),
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messages: make(map[common.Address]*message),
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valSet: valSet,
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}
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}
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// ----------------------------------------------------------------------------
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type messageSet struct {
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view *istanbul.View
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valSet istanbul.ValidatorSet
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messagesMu *sync.Mutex
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messages map[common.Address]*message
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}
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func (ms *messageSet) View() *istanbul.View {
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return ms.view
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}
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func (ms *messageSet) Add(msg *message) error {
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ms.messagesMu.Lock()
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defer ms.messagesMu.Unlock()
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if err := ms.verify(msg); err != nil {
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return err
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}
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return ms.addVerifiedMessage(msg)
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}
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func (ms *messageSet) Values() (result []*message) {
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ms.messagesMu.Lock()
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defer ms.messagesMu.Unlock()
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for _, v := range ms.messages {
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result = append(result, v)
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}
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return result
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}
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func (ms *messageSet) Size() int {
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ms.messagesMu.Lock()
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defer ms.messagesMu.Unlock()
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return len(ms.messages)
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}
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func (ms *messageSet) Get(addr common.Address) *message {
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ms.messagesMu.Lock()
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defer ms.messagesMu.Unlock()
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return ms.messages[addr]
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}
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// ----------------------------------------------------------------------------
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func (ms *messageSet) verify(msg *message) error {
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// verify if the message comes from one of the validators
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if _, v := ms.valSet.GetByAddress(msg.Address); v == nil {
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return istanbul.ErrUnauthorizedAddress
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}
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// TODO: check view number and sequence number
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return nil
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}
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func (ms *messageSet) addVerifiedMessage(msg *message) error {
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ms.messages[msg.Address] = msg
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return nil
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}
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func (ms *messageSet) String() string {
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ms.messagesMu.Lock()
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defer ms.messagesMu.Unlock()
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addresses := make([]string, 0, len(ms.messages))
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for _, v := range ms.messages {
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addresses = append(addresses, v.Address.String())
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}
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return fmt.Sprintf("[%v]", strings.Join(addresses, ", "))
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}
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