folly/folly/SharedMutex.cpp

/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * 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.
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#include <system_error>

#include <folly/SharedMutex.h>

#include <folly/Indestructible.h>
#include <folly/lang/Exception.h>
#include <folly/portability/SysResource.h>

namespace folly {
// Explicitly instantiate SharedMutex here:
template class SharedMutexImpl<true>;
template class SharedMutexImpl<false>;

namespace shared_mutex_detail {
std::unique_lock<std::mutex> annotationGuard(void* ptr) { … }

uint32_t getMaxDeferredReadersSlow(relaxed_atomic<uint32_t>& cache) { … }

long getCurrentThreadInvoluntaryContextSwitchCount() { … }

[[noreturn]] void throwOperationNotPermitted() { … }

[[noreturn]] void throwDeadlockWouldOccur() { … }

} // namespace shared_mutex_detail
} // namespace folly