80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <cassert>
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namespace folly {
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namespace fibers {
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template <typename F>
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void Fiber::setFunction(F&& func, TaskOptions taskOptions) {
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assert(state_ == INVALID);
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func_ = std::forward<F>(func);
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state_ = NOT_STARTED;
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taskOptions_ = std::move(taskOptions);
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}
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template <typename F, typename G>
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void Fiber::setFunctionFinally(F&& resultFunc, G&& finallyFunc) {
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assert(state_ == INVALID);
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resultFunc_ = std::forward<F>(resultFunc);
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finallyFunc_ = std::forward<G>(finallyFunc);
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state_ = NOT_STARTED;
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taskOptions_ = TaskOptions();
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}
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inline void* Fiber::getUserBuffer() {
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return &userBuffer_;
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}
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template <typename T>
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T& Fiber::LocalData::getSlow() {
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dataSize_ = sizeof(T);
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dataType_ = &typeid(T);
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if (sizeof(T) <= kBufferSize) {
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dataDestructor_ = dataBufferDestructor<T>;
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data_ = &buffer_;
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} else {
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dataDestructor_ = dataHeapDestructor<T>;
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data_ = allocateHeapBuffer(dataSize_);
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}
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dataCopyConstructor_ = dataCopyConstructor<T>;
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new (reinterpret_cast<T*>(data_)) T();
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return *reinterpret_cast<T*>(data_);
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}
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template <typename T>
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void Fiber::LocalData::dataCopyConstructor(void* ptr, const void* other) {
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new (reinterpret_cast<T*>(ptr)) T(*reinterpret_cast<const T*>(other));
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}
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template <typename T>
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void Fiber::LocalData::dataBufferDestructor(void* ptr) {
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reinterpret_cast<T*>(ptr)->~T();
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}
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template <typename T>
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void Fiber::LocalData::dataHeapDestructor(void* ptr) {
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reinterpret_cast<T*>(ptr)->~T();
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freeHeapBuffer(ptr);
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}
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} // namespace fibers
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} // namespace folly
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