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https://github.com/ErikasKontenis/SabrehavenServer.git
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96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
/**
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* Tibia GIMUD Server - a free and open-source MMORPG server emulator
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* Copyright (C) 2019 Sabrehaven and Mark Samman <mark.samman@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU 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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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef FS_TASKS_H_A66AC384766041E59DCA059DAB6E1976
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#define FS_TASKS_H_A66AC384766041E59DCA059DAB6E1976
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#include <condition_variable>
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#include "thread_holder_base.h"
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#include "enums.h"
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const int DISPATCHER_TASK_EXPIRATION = 2000;
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const auto SYSTEM_TIME_ZERO = std::chrono::system_clock::time_point(std::chrono::milliseconds(0));
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class Task
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{
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public:
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// DO NOT allocate this class on the stack
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explicit Task(std::function<void (void)> f) : func(std::move(f)) {}
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Task(uint32_t ms, std::function<void (void)> f) :
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expiration(std::chrono::system_clock::now() + std::chrono::milliseconds(ms)), func(std::move(f)) {}
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virtual ~Task() = default;
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void operator()() {
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func();
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}
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void setDontExpire() {
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expiration = SYSTEM_TIME_ZERO;
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}
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bool hasExpired() const {
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if (expiration == SYSTEM_TIME_ZERO) {
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return false;
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}
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return expiration < std::chrono::system_clock::now();
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}
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protected:
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// Expiration has another meaning for scheduler tasks,
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// then it is the time the task should be added to the
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// dispatcher
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std::chrono::system_clock::time_point expiration = SYSTEM_TIME_ZERO;
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std::function<void (void)> func;
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};
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inline Task* createTask(const std::function<void (void)>& f)
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{
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return new Task(f);
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}
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inline Task* createTask(uint32_t expiration, const std::function<void (void)>& f)
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{
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return new Task(expiration, f);
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}
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class Dispatcher : public ThreadHolder<Dispatcher> {
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public:
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void addTask(Task* task, bool push_front = false);
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void shutdown();
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uint64_t getDispatcherCycle() const {
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return dispatcherCycle;
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}
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void threadMain();
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protected:
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std::thread thread;
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std::mutex taskLock;
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std::condition_variable taskSignal;
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std::list<Task*> taskList;
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uint64_t dispatcherCycle = 0;
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};
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extern Dispatcher g_dispatcher;
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#endif
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