mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-23 11:57:17 +00:00
76 lines
2.4 KiB
Go
76 lines
2.4 KiB
Go
// Copyright 2017 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 les
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common/bitutil"
|
|
"github.com/ethereum/go-ethereum/light"
|
|
)
|
|
|
|
const (
|
|
// bloomServiceThreads is the number of goroutines used globally by an Ethereum
|
|
// instance to service bloombits lookups for all running filters.
|
|
bloomServiceThreads = 16
|
|
|
|
// bloomFilterThreads is the number of goroutines used locally per filter to
|
|
// multiplex requests onto the global servicing goroutines.
|
|
bloomFilterThreads = 3
|
|
|
|
// bloomRetrievalBatch is the maximum number of bloom bit retrievals to service
|
|
// in a single batch.
|
|
bloomRetrievalBatch = 16
|
|
|
|
// bloomRetrievalWait is the maximum time to wait for enough bloom bit requests
|
|
// to accumulate request an entire batch (avoiding hysteresis).
|
|
bloomRetrievalWait = time.Microsecond * 100
|
|
)
|
|
|
|
// startBloomHandlers starts a batch of goroutines to accept bloom bit database
|
|
// retrievals from possibly a range of filters and serving the data to satisfy.
|
|
func (eth *LightEthereum) startBloomHandlers(sectionSize uint64) {
|
|
for i := 0; i < bloomServiceThreads; i++ {
|
|
go func() {
|
|
defer eth.wg.Done()
|
|
for {
|
|
select {
|
|
case <-eth.closeCh:
|
|
return
|
|
|
|
case request := <-eth.bloomRequests:
|
|
task := <-request
|
|
task.Bitsets = make([][]byte, len(task.Sections))
|
|
compVectors, err := light.GetBloomBits(task.Context, eth.odr, task.Bit, task.Sections)
|
|
if err == nil {
|
|
for i := range task.Sections {
|
|
if blob, err := bitutil.DecompressBytes(compVectors[i], int(sectionSize/8)); err == nil {
|
|
task.Bitsets[i] = blob
|
|
} else {
|
|
task.Error = err
|
|
}
|
|
}
|
|
} else {
|
|
task.Error = err
|
|
}
|
|
request <- task
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
}
|