Delete eth/bloombits.go

eth/bloombits.go

@@ -1,74 +0,0 @@
-// 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 eth
-
-import (
-	"time"
-
-	"github.com/ethereum/go-ethereum/common/bitutil"
-	"github.com/ethereum/go-ethereum/core/rawdb"
-)
-
-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.Duration(0)
-)
-
-// 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 *Ethereum) startBloomHandlers(sectionSize uint64) {
-	for i := 0; i < bloomServiceThreads; i++ {
-		go func() {
-			for {
-				select {
-				case <-eth.closeBloomHandler:
-					return
-
-				case request := <-eth.bloomRequests:
-					task := <-request
-					task.Bitsets = make([][]byte, len(task.Sections))
-					for i, section := range task.Sections {
-						head := rawdb.ReadCanonicalHash(eth.chainDb, (section+1)*sectionSize-1)
-						if compVector, err := rawdb.ReadBloomBits(eth.chainDb, task.Bit, section, head); err == nil {
-							if blob, err := bitutil.DecompressBytes(compVector, int(sectionSize/8)); err == nil {
-								task.Bitsets[i] = blob
-							} else {
-								task.Error = err
-							}
-						} else {
-							task.Error = err
-						}
-					}
-					request <- task
-				}
-			}
-		}()
-	}
-}