You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
97 lines
2.0 KiB
97 lines
2.0 KiB
package downloader
|
|
|
|
import (
|
|
"github.com/harmony-one/abool"
|
|
"github.com/harmony-one/harmony/core"
|
|
"github.com/harmony-one/harmony/p2p"
|
|
)
|
|
|
|
// Downloaders is the set of downloaders
|
|
type Downloaders struct {
|
|
ds map[uint32]*Downloader
|
|
active *abool.AtomicBool
|
|
|
|
config Config
|
|
}
|
|
|
|
// NewDownloaders creates Downloaders for sync of multiple blockchains
|
|
func NewDownloaders(host p2p.Host, bcs []core.BlockChain, config Config) *Downloaders {
|
|
ds := make(map[uint32]*Downloader)
|
|
|
|
for _, bc := range bcs {
|
|
if bc == nil {
|
|
continue
|
|
}
|
|
if _, ok := ds[bc.ShardID()]; ok {
|
|
continue
|
|
}
|
|
ds[bc.ShardID()] = NewDownloader(host, bc, config)
|
|
}
|
|
return &Downloaders{
|
|
ds: ds,
|
|
active: abool.New(),
|
|
config: config,
|
|
}
|
|
}
|
|
|
|
// Start start the downloaders
|
|
func (ds *Downloaders) Start() {
|
|
if ds.config.ServerOnly {
|
|
// Run in server only mode. Do not start downloaders.
|
|
return
|
|
}
|
|
ds.active.Set()
|
|
for _, d := range ds.ds {
|
|
d.Start()
|
|
}
|
|
}
|
|
|
|
// Close close the downloaders
|
|
func (ds *Downloaders) Close() {
|
|
if ds.config.ServerOnly {
|
|
// Run in server only mode. Downloaders not started.
|
|
return
|
|
}
|
|
ds.active.UnSet()
|
|
for _, d := range ds.ds {
|
|
d.Close()
|
|
}
|
|
}
|
|
|
|
// DownloadAsync triggers a download
|
|
func (ds *Downloaders) DownloadAsync(shardID uint32) {
|
|
d, ok := ds.ds[shardID]
|
|
if !ok && d != nil {
|
|
d.DownloadAsync()
|
|
}
|
|
}
|
|
|
|
// GetShardDownloader get the downloader with the given shard ID
|
|
func (ds *Downloaders) GetShardDownloader(shardID uint32) *Downloader {
|
|
return ds.ds[shardID]
|
|
}
|
|
|
|
// NumPeers returns the connected peers for each shard
|
|
func (ds *Downloaders) NumPeers() map[uint32]int {
|
|
res := make(map[uint32]int)
|
|
|
|
for sid, d := range ds.ds {
|
|
res[sid] = d.NumPeers()
|
|
}
|
|
return res
|
|
}
|
|
|
|
// SyncStatus returns whether the given shard is doing syncing task and the target block
|
|
// number.
|
|
func (ds *Downloaders) SyncStatus(shardID uint32) (bool, uint64, uint64) {
|
|
d, ok := ds.ds[shardID]
|
|
if !ok {
|
|
return false, 0, 0
|
|
}
|
|
return d.SyncStatus()
|
|
}
|
|
|
|
// IsActive returns whether the downloader is active
|
|
func (ds *Downloaders) IsActive() bool {
|
|
return ds.active.IsSet()
|
|
}
|
|
|