91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
#pragma once
|
|
#include "td/utils/port/config.h"
|
|
|
|
#ifdef TD_THREAD_PTHREAD
|
|
|
|
#include "td/utils/common.h"
|
|
#include "td/utils/invoke.h"
|
|
#include "td/utils/MovableValue.h"
|
|
#include "td/utils/port/detail/ThreadIdGuard.h"
|
|
#include "td/utils/port/thread_local.h"
|
|
|
|
#include <tuple>
|
|
#include <type_traits>
|
|
#include <utility>
|
|
|
|
#include <pthread.h>
|
|
#include <sched.h>
|
|
|
|
namespace td {
|
|
namespace detail {
|
|
class ThreadPthread {
|
|
public:
|
|
ThreadPthread() = default;
|
|
ThreadPthread(const ThreadPthread &other) = delete;
|
|
ThreadPthread &operator=(const ThreadPthread &other) = delete;
|
|
ThreadPthread(ThreadPthread &&) = default;
|
|
ThreadPthread &operator=(ThreadPthread &&) = default;
|
|
template <class Function, class... Args>
|
|
explicit ThreadPthread(Function &&f, Args &&... args) {
|
|
func_ = std::make_unique<std::unique_ptr<Destructor>>(
|
|
create_destructor([args = std::make_tuple(decay_copy(std::forward<Function>(f)),
|
|
decay_copy(std::forward<Args>(args))...)]() mutable {
|
|
invoke_tuple(std::move(args));
|
|
clear_thread_locals();
|
|
}));
|
|
pthread_create(&thread_, nullptr, run_thread, func_.get());
|
|
is_inited_ = true;
|
|
}
|
|
void join() {
|
|
if (is_inited_.get()) {
|
|
is_inited_ = false;
|
|
pthread_join(thread_, nullptr);
|
|
}
|
|
}
|
|
~ThreadPthread() {
|
|
join();
|
|
}
|
|
|
|
static unsigned hardware_concurrency() {
|
|
return 8;
|
|
}
|
|
|
|
using id = pthread_t;
|
|
|
|
private:
|
|
MovableValue<bool> is_inited_;
|
|
pthread_t thread_;
|
|
std::unique_ptr<std::unique_ptr<Destructor>> func_;
|
|
|
|
template <class T>
|
|
std::decay_t<T> decay_copy(T &&v) {
|
|
return std::forward<T>(v);
|
|
}
|
|
|
|
static void *run_thread(void *ptr) {
|
|
ThreadIdGuard thread_id_guard;
|
|
auto func = static_cast<decltype(func_.get())>(ptr);
|
|
func->reset();
|
|
return nullptr;
|
|
}
|
|
};
|
|
|
|
namespace this_thread_pthread {
|
|
inline void yield() {
|
|
sched_yield();
|
|
}
|
|
inline ThreadPthread::id get_id() {
|
|
return pthread_self();
|
|
}
|
|
} // namespace this_thread_pthread
|
|
} // namespace detail
|
|
} // namespace td
|
|
|
|
#endif
|