func (tkr *Tracker) updatePeer(ann *models.Announce, peer *models.Peer) (created bool, err error) {
p, t := ann.Peer, ann.Torrent
switch {
case t.Seeders.Contains(p.Key()):
err = tkr.PutSeeder(t.Infohash, p)
if err != nil {
return
}
case t.Leechers.Contains(p.Key()):
err = tkr.PutLeecher(t.Infohash, p)
if err != nil {
return
}
default:
if ann.Left == 0 {
err = tkr.PutSeeder(t.Infohash, p)
if err != nil {
return
}
stats.RecordPeerEvent(stats.NewSeed)
} else {
err = tkr.PutLeecher(t.Infohash, p)
if err != nil {
return
}
stats.RecordPeerEvent(stats.NewLeech)
}
created = true
}
return
}
// Purge iterates over all of the peers within a PeerMap and deletes them if
// they are older than the provided time.
func (pm *PeerMap) Purge(unixtime int64) {
pm.Lock()
defer pm.Unlock()
for key, peer := range pm.Peers {
if peer.LastAnnounce <= unixtime {
delete(pm.Peers, key)
if pm.Seeders {
stats.RecordPeerEvent(stats.ReapedSeed)
} else {
stats.RecordPeerEvent(stats.ReapedLeech)
}
}
}
}
// leecherFinished moves a peer from the leeching pool to the seeder pool.
func (tkr *Tracker) leecherFinished(t *models.Torrent, p *models.Peer) error {
if err := tkr.DeleteLeecher(t.Infohash, p); err != nil {
return err
}
if err := tkr.PutSeeder(t.Infohash, p); err != nil {
return err
}
stats.RecordPeerEvent(stats.Completed)
return nil
}
func (tkr *Tracker) handlePeerEvent(ann *models.Announce, p *models.Peer) (snatched bool, err error) {
p, t := ann.Peer, ann.Torrent
switch {
case ann.Event == "stopped" || ann.Event == "paused":
// updateSwarm checks if the peer is active on the torrent,
// so one of these branches must be followed.
if t.Seeders.Contains(p.Key()) {
err = tkr.DeleteSeeder(t.Infohash, p)
if err != nil {
return
}
stats.RecordPeerEvent(stats.DeletedSeed)
} else if t.Leechers.Contains(p.Key()) {
err = tkr.DeleteLeecher(t.Infohash, p)
if err != nil {
return
}
stats.RecordPeerEvent(stats.DeletedLeech)
}
case t.Leechers.Contains(p.Key()) && (ann.Event == "completed" || ann.Left == 0):
// A leecher has completed or this is the first time we've seen them since
// they've completed.
err = tkr.leecherFinished(t, p)
if err != nil {
return
}
// Only mark as snatched if we receive the completed event.
if ann.Event == "completed" {
snatched = true
}
}
return
}