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78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
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/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2019 Telegram Systems LLP
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*/
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#pragma once
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#include "td/utils/port/config.h"
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#include "td/utils/common.h"
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#include "td/utils/Destructor.h"
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#include <memory>
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#include <utility>
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namespace td {
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// clang-format off
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#if TD_GCC || TD_CLANG
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#define TD_THREAD_LOCAL __thread
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#elif TD_INTEL || TD_MSVC
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#define TD_THREAD_LOCAL thread_local
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#else
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#warning "TD_THREAD_LOCAL is not defined, trying 'thread_local'"
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#define TD_THREAD_LOCAL thread_local
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#endif
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// clang-format on
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// If raw_ptr is not nullptr, allocate T as in std::make_unique<T>(args...) and store pointer into raw_ptr
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template <class T, class P, class... ArgsT>
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bool init_thread_local(P &raw_ptr, ArgsT &&... args);
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// Destroy all thread locals, and store nullptr into corresponding pointers
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void clear_thread_locals();
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void set_thread_id(int32 id);
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int32 get_thread_id();
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namespace detail {
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void add_thread_local_destructor(unique_ptr<Destructor> destructor);
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template <class T, class P, class... ArgsT>
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void do_init_thread_local(P &raw_ptr, ArgsT &&... args) {
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auto ptr = std::make_unique<T>(std::forward<ArgsT>(args)...);
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raw_ptr = ptr.get();
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detail::add_thread_local_destructor(create_destructor([ptr = std::move(ptr), &raw_ptr]() mutable {
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ptr.reset();
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raw_ptr = nullptr;
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}));
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}
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} // namespace detail
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template <class T, class P, class... ArgsT>
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bool init_thread_local(P &raw_ptr, ArgsT &&... args) {
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if (likely(raw_ptr != nullptr)) {
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return false;
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}
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detail::do_init_thread_local<T>(raw_ptr, std::forward<ArgsT>(args)...);
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return true;
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}
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} // namespace td
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