erigon-pulse/eth/downloader/modes.go
ledgerwatch c0b87340a2
Introduce staged sync (#482)
* Introducing staged sync

* Fix linter

* Fix linter

* Sync progress in the DB

* Fix linter

* Fix linter

* Not to wake body and receipt downloaders in the header stage

* Next stage

* Fix tests

* Fix linter

* More on block bodies downloading

* More on downloading bodes

* Remove debug

* Fix test compilation

* Fix tests

* Fix linter

* Fix linter

* Turn off the miner during staged sync

* More fixes
2020-04-24 17:57:43 +01:00

89 lines
2.4 KiB
Go

// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package downloader
import "fmt"
// SyncMode represents the synchronisation mode of the downloader.
type SyncMode int
const (
FullSync SyncMode = iota // Synchronise the entire blockchain history from full blocks
FastSync // Quickly download the headers, full sync only at the chain head
LightSync // Download only the headers and terminate afterwards
StagedSync // Full sync but done in stages
)
const (
FullSyncName = "full"
FastSyncName = "fast"
LightSyncName = "light"
StagedSyncName = "staged"
)
func (mode SyncMode) IsValid() bool {
return mode == FullSync || mode == StagedSync
}
// String implements the stringer interface.
func (mode SyncMode) String() string {
switch mode {
case FullSync:
return FullSyncName
case FastSync:
return FastSyncName
case LightSync:
return LightSyncName
case StagedSync:
return StagedSyncName
default:
return "unknown"
}
}
func (mode SyncMode) MarshalText() ([]byte, error) {
switch mode {
case FullSync:
return []byte(FullSyncName), nil
case FastSync:
return []byte(FastSyncName), nil
case LightSync:
return []byte(LightSyncName), nil
case StagedSync:
return []byte(StagedSyncName), nil
default:
return nil, fmt.Errorf("unknown sync mode %d", mode)
}
}
func (mode *SyncMode) UnmarshalText(text []byte) error {
switch string(text) {
case FullSyncName:
*mode = FullSync
case FastSyncName:
*mode = FastSync
case LightSyncName:
*mode = LightSync
case StagedSyncName:
*mode = StagedSync
default:
return fmt.Errorf(`unknown sync mode %q, want "%s", "%s", "%s" or "%s"`,
FullSyncName, FastSyncName, LightSyncName, StagedSyncName, text)
}
return nil
}