mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-26 21:47:18 +00:00
0be3044b7e
* rename * rename "make grpc" * rename "abi bindings templates" * rename "abi bindings templates"
86 lines
2.6 KiB
Go
86 lines
2.6 KiB
Go
// Copyright 2018 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 core
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"github.com/ledgerwatch/erigon/common"
|
|
"github.com/ledgerwatch/erigon/core/types"
|
|
)
|
|
|
|
// txSenderCacherRequest is a request for recovering transaction senders with a
|
|
// specific signature scheme and caching it into the transactions themselves.
|
|
//
|
|
// The inc field defines the number of transactions to skip after each recovery,
|
|
// which is used to feed the same underlying input array to different threads but
|
|
// ensure they process the early transactions fast.
|
|
type txSenderCacherRequest struct {
|
|
signer types.Signer
|
|
txs []types.Transaction
|
|
inc int
|
|
}
|
|
|
|
// TxSenderCacher is a helper structure to concurrently ecrecover transaction
|
|
// senders from digital signatures on background threads.
|
|
type TxSenderCacher struct {
|
|
threads int
|
|
tasks chan *txSenderCacherRequest
|
|
exitCh chan struct{}
|
|
wg *sync.WaitGroup
|
|
}
|
|
|
|
// newTxSenderCacher creates a new transaction sender background cacher and starts
|
|
// as many processing goroutines as allowed by the GOMAXPROCS on construction.
|
|
func NewTxSenderCacher(threads int) *TxSenderCacher {
|
|
cacher := &TxSenderCacher{
|
|
tasks: make(chan *txSenderCacherRequest, threads),
|
|
threads: threads,
|
|
exitCh: make(chan struct{}),
|
|
wg: &sync.WaitGroup{},
|
|
}
|
|
|
|
for i := 0; i < threads; i++ {
|
|
cacher.wg.Add(1)
|
|
go func() {
|
|
defer cacher.wg.Done()
|
|
cacher.cache()
|
|
}()
|
|
}
|
|
return cacher
|
|
}
|
|
|
|
// cache is an infinite loop, caching transaction senders from various forms of
|
|
// data structures.
|
|
func (cacher *TxSenderCacher) cache() {
|
|
for task := range cacher.tasks {
|
|
if err := common.Stopped(cacher.exitCh); err != nil {
|
|
return
|
|
}
|
|
|
|
for i := 0; i < len(task.txs); i += task.inc {
|
|
task.txs[i].Sender(task.signer)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (cacher *TxSenderCacher) Close() {
|
|
common.SafeClose(cacher.exitCh)
|
|
close(cacher.tasks)
|
|
cacher.wg.Wait()
|
|
}
|