114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/utils/port/config.h"
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#ifdef TD_THREAD_PTHREAD
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#include "td/utils/common.h"
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#include "td/utils/Destructor.h"
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#include "td/utils/invoke.h"
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#include "td/utils/MovableValue.h"
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#include "td/utils/port/detail/ThreadIdGuard.h"
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#include "td/utils/port/thread_local.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Status.h"
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#include <tuple>
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#include <type_traits>
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#include <utility>
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#if TD_OPENBSD || TD_SOLARIS
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#include <pthread.h>
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#endif
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#include <sys/types.h>
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#if TD_LINUX || TD_FREEBSD || TD_NETBSD
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#define TD_HAVE_THREAD_AFFINITY 1
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#endif
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namespace td {
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namespace detail {
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class ThreadPthread {
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public:
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ThreadPthread() = default;
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ThreadPthread(const ThreadPthread &other) = delete;
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ThreadPthread &operator=(const ThreadPthread &other) = delete;
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ThreadPthread(ThreadPthread &&other) noexcept : is_inited_(std::move(other.is_inited_)), thread_(other.thread_) {
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}
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ThreadPthread &operator=(ThreadPthread &&other) noexcept {
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join();
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is_inited_ = std::move(other.is_inited_);
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thread_ = other.thread_;
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return *this;
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}
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template <class Function, class... Args>
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explicit ThreadPthread(Function &&f, Args &&...args) {
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auto func = create_destructor([args = std::make_tuple(decay_copy(std::forward<Function>(f)),
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decay_copy(std::forward<Args>(args))...)]() mutable {
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invoke_tuple(std::move(args));
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clear_thread_locals();
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});
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do_pthread_create(&thread_, nullptr, run_thread, func.release());
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is_inited_ = true;
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}
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~ThreadPthread() {
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join();
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}
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void set_name(CSlice name);
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void join();
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void detach();
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static unsigned hardware_concurrency();
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using id = pthread_t;
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id get_id() noexcept {
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return thread_;
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}
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static void send_real_time_signal(id thread_id, int real_time_signal_number);
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#if TD_HAVE_THREAD_AFFINITY
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static Status set_affinity_mask(id thread_id, uint64 mask);
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static uint64 get_affinity_mask(id thread_id);
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#endif
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private:
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MovableValue<bool> is_inited_;
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pthread_t thread_;
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template <class T>
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std::decay_t<T> decay_copy(T &&v) {
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return std::forward<T>(v);
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}
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static int do_pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *),
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void *arg);
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static void *run_thread(void *ptr) {
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ThreadIdGuard thread_id_guard;
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auto func = unique_ptr<Destructor>(static_cast<Destructor *>(ptr));
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return nullptr;
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}
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};
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namespace this_thread_pthread {
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ThreadPthread::id get_id();
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} // namespace this_thread_pthread
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} // namespace detail
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} // namespace td
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#endif
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