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path: root/p2p/testing/peerpool.go
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// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package testing

import (
    "fmt"
    "sync"

    "github.com/ethereum/go-ethereum/log"
    "github.com/ethereum/go-ethereum/p2p/enode"
)

type TestPeer interface {
    ID() enode.ID
    Drop(error)
}

// TestPeerPool is an example peerPool to demonstrate registration of peer connections
type TestPeerPool struct {
    lock  sync.Mutex
    peers map[enode.ID]TestPeer
}

func NewTestPeerPool() *TestPeerPool {
    return &TestPeerPool{peers: make(map[enode.ID]TestPeer)}
}

func (p *TestPeerPool) Add(peer TestPeer) {
    p.lock.Lock()
    defer p.lock.Unlock()
    log.Trace(fmt.Sprintf("pp add peer  %v", peer.ID()))
    p.peers[peer.ID()] = peer

}

func (p *TestPeerPool) Remove(peer TestPeer) {
    p.lock.Lock()
    defer p.lock.Unlock()
    delete(p.peers, peer.ID())
}

func (p *TestPeerPool) Has(id enode.ID) bool {
    p.lock.Lock()
    defer p.lock.Unlock()
    _, ok := p.peers[id]
    return ok
}

func (p *TestPeerPool) Get(id enode.ID) TestPeer {
    p.lock.Lock()
    defer p.lock.Unlock()
    return p.peers[id]
}