2 * Copyright 2016 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef FOLLY_GEN_PARALLELMAP_H
18 #define FOLLY_GEN_PARALLELMAP_H
20 #include <folly/gen/Core.h>
22 namespace folly { namespace gen {
26 template<class Predicate>
32 * Run `pred` in parallel in nThreads. Results are returned in the
33 * same order in which they were retrieved from the source generator
36 * NOTE: Only `pred` is run from separate threads; the source
37 * generator and the rest of the pipeline is executed in the
40 template<class Predicate,
41 class PMap = detail::PMap<Predicate>>
42 PMap pmap(Predicate pred = Predicate(), size_t nThreads = 0) {
43 return PMap(std::move(pred), nThreads);
48 #include <folly/gen/ParallelMap-inl.h>
50 #endif // FOLLY_GEN_PARALLELMAP_H