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.
20 #include <folly/portability/Asm.h>
22 // Some utilities used by AtomicHashArray and AtomicHashMap
25 namespace folly { namespace detail {
27 template <typename Cond>
28 void atomic_hash_spin_wait(Cond condition) {
29 constexpr size_t kPauseLimit = 10000;
30 for (size_t i = 0; condition(); ++i) {
31 if (i < kPauseLimit) {
34 std::this_thread::yield();
39 }} // namespace folly::detail