| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| #include "runtime/runtime-filter.h" |
| |
| #include "runtime/raw-value.h" |
| |
| using namespace impala; |
| |
| bool RuntimeFilter::Eval(void* val, const ColumnType& col_type) const noexcept { |
| // Safe to read bloom_filter_ concurrently with any ongoing SetBloomFilter() thanks |
| // to a) the atomicity of / pointer assignments and b) the x86 TSO memory model. |
| if (bloom_filter_ == BloomFilter::ALWAYS_TRUE_FILTER) return true; |
| uint32_t h = RawValue::GetHashValue(val, col_type, |
| RuntimeFilterBank::DefaultHashSeed()); |
| return bloom_filter_->Find(h); |
| } |
