downloadercfg

Documentation

Overview

Copyright 2021 Erigon contributors

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

• Constants
• func Default() *torrent.ClientConfig
• func Int2LogLevel(level int) (lvl lg.Level, dbg bool, err error)
• type Cfg
  • func New(dirs datadir.Dirs, version string, verbosity lg.Level, ...) (*Cfg, error)

Constants

const DefaultNetworkChunkSize = 256 * 1024

DefaultNetworkChunkSize - how much data request per 1 network call to peer. default: 16Kb

const DefaultPieceSize = 2 * 1024 * 1024

DefaultPieceSize - Erigon serves many big files, bigger pieces will reduce amount of network announcements, but can't go over 2Mb see https://wiki.theory.org/BitTorrentSpecification#Metainfo_File_Structure

Functions

func Default

func Default() *torrent.ClientConfig

func Int2LogLevel

func Int2LogLevel(level int) (lvl lg.Level, dbg bool, err error)

Types

type Cfg

type Cfg struct {
	ClientConfig  *torrent.ClientConfig
	DownloadSlots int

	WebSeedUrls                     []*url.URL
	WebSeedFiles                    []string
	WebSeedS3Tokens                 []string
	ExpectedTorrentFilesHashes      snapcfg.Preverified
	DownloadTorrentFilesFromWebseed bool
	ChainName                       string

	Dirs datadir.Dirs
}

func New

func New(dirs datadir.Dirs, version string, verbosity lg.Level, downloadRate, uploadRate datasize.ByteSize, port, connsPerFile, downloadSlots int, staticPeers, webseeds []string, chainName string) (*Cfg, error)