97 lines
3.2 KiB
Go
97 lines
3.2 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 simulation
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import (
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"context"
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"encoding/hex"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/p2p/enode"
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"github.com/ethereum/go-ethereum/swarm/network"
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)
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// BucketKeyKademlia is the key to be used for storing the kademlia
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// instance for particuar node, usually inside the ServiceFunc function.
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var BucketKeyKademlia BucketKey = "kademlia"
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// WaitTillHealthy is blocking until the health of all kademlias is true.
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// If error is not nil, a map of kademlia that was found not healthy is returned.
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// TODO: Check correctness since change in kademlia depth calculation logic
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func (s *Simulation) WaitTillHealthy(ctx context.Context, kadMinProxSize int) (ill map[enode.ID]*network.Kademlia, err error) {
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// Prepare PeerPot map for checking Kademlia health
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var ppmap map[string]*network.PeerPot
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kademlias := s.kademlias()
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addrs := make([][]byte, 0, len(kademlias))
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for _, k := range kademlias {
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addrs = append(addrs, k.BaseAddr())
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}
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ppmap = network.NewPeerPotMap(kadMinProxSize, addrs)
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// Wait for healthy Kademlia on every node before checking files
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ticker := time.NewTicker(200 * time.Millisecond)
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defer ticker.Stop()
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ill = make(map[enode.ID]*network.Kademlia)
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for {
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select {
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case <-ctx.Done():
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return ill, ctx.Err()
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case <-ticker.C:
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for k := range ill {
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delete(ill, k)
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}
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log.Debug("kademlia health check", "addr count", len(addrs))
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for id, k := range kademlias {
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//PeerPot for this node
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addr := common.Bytes2Hex(k.BaseAddr())
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pp := ppmap[addr]
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//call Healthy RPC
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h := k.Healthy(pp)
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//print info
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log.Debug(k.String())
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log.Debug("kademlia", "empty bins", pp.EmptyBins, "gotNN", h.GotNN, "knowNN", h.KnowNN, "full", h.Full)
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log.Debug("kademlia", "health", h.GotNN && h.KnowNN && h.Full, "addr", hex.EncodeToString(k.BaseAddr()), "node", id)
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log.Debug("kademlia", "ill condition", !h.GotNN || !h.Full, "addr", hex.EncodeToString(k.BaseAddr()), "node", id)
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if !h.GotNN || !h.Full {
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ill[id] = k
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}
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}
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if len(ill) == 0 {
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return nil, nil
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}
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}
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}
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}
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// kademlias returns all Kademlia instances that are set
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// in simulation bucket.
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func (s *Simulation) kademlias() (ks map[enode.ID]*network.Kademlia) {
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items := s.UpNodesItems(BucketKeyKademlia)
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ks = make(map[enode.ID]*network.Kademlia, len(items))
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for id, v := range items {
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k, ok := v.(*network.Kademlia)
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if !ok {
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continue
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}
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ks[id] = k
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}
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return ks
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}
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