66 lines
2.0 KiB
Go
66 lines
2.0 KiB
Go
// Copyright 2018 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 simulation
|
|
|
|
import (
|
|
"github.com/ethereum/go-ethereum/node"
|
|
"github.com/ethereum/go-ethereum/p2p/enode"
|
|
"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
|
|
)
|
|
|
|
// Service returns a single Service by name on a particular node
|
|
// with provided id.
|
|
func (s *Simulation) Service(name string, id enode.ID) node.Service {
|
|
simNode, ok := s.Net.GetNode(id).Node.(*adapters.SimNode)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
services := simNode.ServiceMap()
|
|
if len(services) == 0 {
|
|
return nil
|
|
}
|
|
return services[name]
|
|
}
|
|
|
|
// RandomService returns a single Service by name on a
|
|
// randomly chosen node that is up.
|
|
func (s *Simulation) RandomService(name string) node.Service {
|
|
n := s.Net.GetRandomUpNode().Node.(*adapters.SimNode)
|
|
if n == nil {
|
|
return nil
|
|
}
|
|
return n.Service(name)
|
|
}
|
|
|
|
// Services returns all services with a provided name
|
|
// from nodes that are up.
|
|
func (s *Simulation) Services(name string) (services map[enode.ID]node.Service) {
|
|
nodes := s.Net.GetNodes()
|
|
services = make(map[enode.ID]node.Service)
|
|
for _, node := range nodes {
|
|
if !node.Up {
|
|
continue
|
|
}
|
|
simNode, ok := node.Node.(*adapters.SimNode)
|
|
if !ok {
|
|
continue
|
|
}
|
|
services[node.ID()] = simNode.Service(name)
|
|
}
|
|
return services
|
|
}
|