thread_holder_base.h

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Alex Alex Commit Server upload 18/10/2026 23:38
1/**
2 * The Forgotten Server - a free and open-source MMORPG server emulator
3 * Copyright (C) 2019 Mark Samman <mark.samman@gmail.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20#ifndef FS_THREAD_HOLDER_H_BEB56FC46748E71D15A5BF0773ED2E67
21#define FS_THREAD_HOLDER_H_BEB56FC46748E71D15A5BF0773ED2E67
22
23#include <thread>
24#include <atomic>
25#include "enums.h"
26
27template <typename Derived>
28class ThreadHolder
29{
30 public:
31 ThreadHolder() {}
32 void start() {
33 setState(THREAD_STATE_RUNNING);
34 thread = std::thread(&Derived::threadMain, static_cast<Derived*>(this));
35 }
36
37 void stop() {
38 setState(THREAD_STATE_CLOSING);
39 }
40
41 void join() {
42 if (thread.joinable()) {
43 thread.join();
44 }
45 }
46 protected:
47 void setState(ThreadState newState) {
48 threadState.store(newState, std::memory_order_relaxed);
49 }
50
51 ThreadState getState() const {
52 return threadState.load(std::memory_order_relaxed);
53 }
54 private:
55 std::atomic<ThreadState> threadState{THREAD_STATE_TERMINATED};
56 std::thread thread;
57};
58
59#endif
60
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