mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-21 04:11:50 +03:00
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
|
/*
|
||
|
|
* Copyright 2016 Facebook, Inc.
|
||
|
|
*
|
||
|
|
* Licensed 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <thread>
|
||
|
|
#include <folly/portability/Asm.h>
|
||
|
|
|
||
|
|
// Some utilities used by AtomicHashArray and AtomicHashMap
|
||
|
|
//
|
||
|
|
|
||
|
|
namespace folly { namespace detail {
|
||
|
|
|
||
|
|
template <typename Cond>
|
||
|
|
void atomic_hash_spin_wait(Cond condition) {
|
||
|
|
constexpr size_t kPauseLimit = 10000;
|
||
|
|
for (size_t i = 0; condition(); ++i) {
|
||
|
|
if (i < kPauseLimit) {
|
||
|
|
folly::asm_pause();
|
||
|
|
} else {
|
||
|
|
std::this_thread::yield();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}} // namespace folly::detail
|