// Run filters logs with the current parameters set func (self *Filter) Find() vm.Logs { latestBlock := core.GetBlock(self.db, core.GetHeadBlockHash(self.db)) var beginBlockNo uint64 = uint64(self.begin) if self.begin == -1 { beginBlockNo = latestBlock.NumberU64() } var endBlockNo uint64 = uint64(self.end) if self.end == -1 { endBlockNo = latestBlock.NumberU64() } // if no addresses are present we can't make use of fast search which // uses the mipmap bloom filters to check for fast inclusion and uses // higher range probability in order to ensure at least a false positive if len(self.addresses) == 0 { return self.getLogs(beginBlockNo, endBlockNo) } return self.mipFind(beginBlockNo, endBlockNo, 0) }
func addMipmapBloomBins(db ethdb.Database) (err error) { const mipmapVersion uint = 2 // check if the version is set. We ignore data for now since there's // only one version so we can easily ignore it for now var data []byte data, _ = db.Get([]byte("setting-mipmap-version")) if len(data) > 0 { var version uint if err := rlp.DecodeBytes(data, &version); err == nil && version == mipmapVersion { return nil } } defer func() { if err == nil { var val []byte val, err = rlp.EncodeToBytes(mipmapVersion) if err == nil { err = db.Put([]byte("setting-mipmap-version"), val) } return } }() latestBlock := core.GetBlock(db, core.GetHeadBlockHash(db)) if latestBlock == nil { // clean database return } tstart := time.Now() glog.V(logger.Info).Infoln("upgrading db log bloom bins") for i := uint64(0); i <= latestBlock.NumberU64(); i++ { hash := core.GetCanonicalHash(db, i) if (hash == common.Hash{}) { return fmt.Errorf("chain db corrupted. Could not find block %d.", i) } core.WriteMipmapBloom(db, i, core.GetBlockReceipts(db, hash)) } glog.V(logger.Info).Infoln("upgrade completed in", time.Since(tstart)) return nil }