3ac92a7abd
* unit tests for service.go in overlay package added * comments removed * unit tests for overlay package updated * updated code for starting redis server
93 lines
2.3 KiB
Go
93 lines
2.3 KiB
Go
// Copyright (C) 2018 Storj Labs, Inc.
|
|
// See LICENSE for copying information.
|
|
|
|
package kademlia
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
|
|
"github.com/zeebo/errs"
|
|
monkit "gopkg.in/spacemonkeygo/monkit.v2"
|
|
|
|
"storj.io/storj/pkg/provider"
|
|
proto "storj.io/storj/protos/overlay"
|
|
)
|
|
|
|
var (
|
|
// Error defines a Kademlia error
|
|
Error = errs.Class("kademlia error")
|
|
mon = monkit.Package()
|
|
)
|
|
|
|
//Used as kademlia key
|
|
type CtxKey int
|
|
|
|
const (
|
|
ctxKeyKad CtxKey = iota
|
|
)
|
|
|
|
// Config defines all of the things that are needed to start up Kademlia
|
|
// server endpoints (and not necessarily client code).
|
|
type Config struct {
|
|
BootstrapAddr string `help:"the kademlia node to bootstrap against" default:"bootstrap-dev.storj.io:8080"`
|
|
// TODO(jt): remove this! kademlia should just use the grpc server
|
|
TODOListenAddr string `help:"the host/port for kademlia to listen on. TODO(jt): this should be removed!" default:"127.0.0.1:7776"`
|
|
}
|
|
|
|
// Run implements provider.Responsibility
|
|
func (c Config) Run(ctx context.Context, server *provider.Provider) (
|
|
err error) {
|
|
defer mon.Task()(&ctx)(&err)
|
|
|
|
// TODO(jt): don't split the host/port
|
|
host, port, err := net.SplitHostPort(c.BootstrapAddr)
|
|
if err != nil {
|
|
return Error.Wrap(err)
|
|
}
|
|
// TODO(jt): an intro node shouldn't require an ID, and should only be an
|
|
// address
|
|
in, err := GetIntroNode("", host, port)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// TODO(jt): don't split the host/port
|
|
host, port, err = net.SplitHostPort(c.TODOListenAddr)
|
|
if err != nil {
|
|
return Error.Wrap(err)
|
|
}
|
|
// TODO(jt): kademlia should register on server.GRPC() instead of listening
|
|
// itself
|
|
kad, err := NewKademlia(server.Identity().ID, []proto.Node{*in}, host, port)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() { _ = kad.Disconnect() }()
|
|
|
|
// TODO(jt): ListenAndServe should probably be blocking and we should kick
|
|
// it off in a goroutine here
|
|
err = kad.ListenAndServe()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// TODO(jt): Bootstrap should probably be blocking and we should kick it off
|
|
// in a goroutine here
|
|
err = kad.Bootstrap(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return server.Run(context.WithValue(ctx, ctxKeyKad, kad))
|
|
}
|
|
|
|
// LoadFromContext loads an existing Kademlia from the Provider context
|
|
// stack if one exists.
|
|
func LoadFromContext(ctx context.Context) *Kademlia {
|
|
if v, ok := ctx.Value(ctxKeyKad).(*Kademlia); ok {
|
|
return v
|
|
}
|
|
return nil
|
|
}
|