Exemplo n.º 1
0
func (bs *Bitswap) startWorkers(px process.Process, ctx context.Context) {
	// Start up a worker to handle block requests this node is making
	px.Go(func(px process.Process) {
		bs.providerQueryManager(ctx)
	})

	// Start up workers to handle requests from other nodes for the data on this node
	for i := 0; i < TaskWorkerCount; i++ {
		i := i
		px.Go(func(px process.Process) {
			bs.taskWorker(ctx, i)
		})
	}

	// Start up a worker to manage periodically resending our wantlist out to peers
	px.Go(func(px process.Process) {
		bs.rebroadcastWorker(ctx)
	})

	// Start up a worker to manage sending out provides messages
	px.Go(func(px process.Process) {
		bs.provideCollector(ctx)
	})

	// Spawn up multiple workers to handle incoming blocks
	// consider increasing number if providing blocks bottlenecks
	// file transfers
	px.Go(bs.provideWorker)
}
Exemplo n.º 2
0
func (rp *Republisher) Run(proc goprocess.Process) {
	tick := time.NewTicker(rp.Interval)
	defer tick.Stop()

	for {
		select {
		case <-tick.C:
			err := rp.republishEntries(proc)
			if err != nil {
				log.Error("Republisher failed to republish: ", err)
			}
		case <-proc.Closing():
			return
		}
	}
}
Exemplo n.º 3
0
func (bs *Bitswap) provideWorker(px process.Process) {

	limit := make(chan struct{}, provideWorkerMax)

	limitedGoProvide := func(k *cid.Cid, wid int) {
		defer func() {
			// replace token when done
			<-limit
		}()
		ev := logging.LoggableMap{"ID": wid}

		ctx := procctx.OnClosingContext(px) // derive ctx from px
		defer log.EventBegin(ctx, "Bitswap.ProvideWorker.Work", ev, k).Done()

		ctx, cancel := context.WithTimeout(ctx, provideTimeout) // timeout ctx
		defer cancel()

		if err := bs.network.Provide(ctx, k); err != nil {
			log.Warning(err)
		}
	}

	// worker spawner, reads from bs.provideKeys until it closes, spawning a
	// _ratelimited_ number of workers to handle each key.
	for wid := 2; ; wid++ {
		ev := logging.LoggableMap{"ID": 1}
		log.Event(procctx.OnClosingContext(px), "Bitswap.ProvideWorker.Loop", ev)

		select {
		case <-px.Closing():
			return
		case k, ok := <-bs.provideKeys:
			if !ok {
				log.Debug("provideKeys channel closed")
				return
			}
			select {
			case <-px.Closing():
				return
			case limit <- struct{}{}:
				go limitedGoProvide(k, wid)
			}
		}
	}
}