YTSFlix_Go/vendor/github.com/anacrolix/torrent/global.go

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2018-11-04 14:58:15 +00:00
package torrent
import (
"crypto"
"expvar"
pp "github.com/anacrolix/torrent/peer_protocol"
)
const (
pieceHash = crypto.SHA1
maxRequests = 250 // Maximum pending requests we allow peers to send us.
defaultChunkSize = 0x4000 // 16KiB
)
// These are our extended message IDs. Peers will use these values to
// select which extension a message is intended for.
const (
metadataExtendedId = iota + 1 // 0 is reserved for deleting keys
pexExtendedId
)
func defaultPeerExtensionBytes() PeerExtensionBits {
return pp.NewPeerExtensionBytes(pp.ExtensionBitDHT, pp.ExtensionBitExtended, pp.ExtensionBitFast)
}
// I could move a lot of these counters to their own file, but I suspect they
// may be attached to a Client someday.
var (
torrent = expvar.NewMap("torrent")
peersAddedBySource = expvar.NewMap("peersAddedBySource")
pieceHashedCorrect = expvar.NewInt("pieceHashedCorrect")
pieceHashedNotCorrect = expvar.NewInt("pieceHashedNotCorrect")
peerExtensions = expvar.NewMap("peerExtensions")
completedHandshakeConnectionFlags = expvar.NewMap("completedHandshakeConnectionFlags")
// Count of connections to peer with same client ID.
connsToSelf = expvar.NewInt("connsToSelf")
receivedKeepalives = expvar.NewInt("receivedKeepalives")
postedKeepalives = expvar.NewInt("postedKeepalives")
// Requests received for pieces we don't have.
requestsReceivedForMissingPieces = expvar.NewInt("requestsReceivedForMissingPieces")
requestedChunkLengths = expvar.NewMap("requestedChunkLengths")
messageTypesReceived = expvar.NewMap("messageTypesReceived")
// Track the effectiveness of Torrent.connPieceInclinationPool.
pieceInclinationsReused = expvar.NewInt("pieceInclinationsReused")
pieceInclinationsNew = expvar.NewInt("pieceInclinationsNew")
pieceInclinationsPut = expvar.NewInt("pieceInclinationsPut")
)