mirror of
https://github.com/ErikasKontenis/SabrehavenServer.git
synced 2025-05-01 01:59:21 +02:00
135 lines
3.1 KiB
C++
135 lines
3.1 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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#include "otpch.h"
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#include "scheduler.h"
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void Scheduler::threadMain()
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{
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std::unique_lock<std::mutex> eventLockUnique(eventLock, std::defer_lock);
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while (getState() != THREAD_STATE_TERMINATED) {
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std::cv_status ret = std::cv_status::no_timeout;
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eventLockUnique.lock();
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if (eventList.empty()) {
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eventSignal.wait(eventLockUnique);
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} else {
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ret = eventSignal.wait_until(eventLockUnique, eventList.top()->getCycle());
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}
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// the mutex is locked again now...
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if (ret == std::cv_status::timeout) {
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// ok we had a timeout, so there has to be an event we have to execute...
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SchedulerTask* task = eventList.top();
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eventList.pop();
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// check if the event was stopped
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auto it = eventIds.find(task->getEventId());
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if (it == eventIds.end()) {
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eventLockUnique.unlock();
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delete task;
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continue;
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}
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eventIds.erase(it);
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eventLockUnique.unlock();
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task->setDontExpire();
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g_dispatcher.addTask(task, true);
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} else {
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eventLockUnique.unlock();
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}
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}
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}
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uint32_t Scheduler::addEvent(SchedulerTask* task)
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{
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bool do_signal = false;
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eventLock.lock();
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if (getState() == THREAD_STATE_RUNNING) {
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// check if the event has a valid id
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if (task->getEventId() == 0) {
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// if not generate one
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if (++lastEventId == 0) {
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lastEventId = 1;
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}
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task->setEventId(lastEventId);
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}
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// insert the event id in the list of active events
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eventIds.insert(task->getEventId());
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// add the event to the queue
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eventList.push(task);
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// if the list was empty or this event is the top in the list
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// we have to signal it
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do_signal = (task == eventList.top());
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} else {
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eventLock.unlock();
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delete task;
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return 0;
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}
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eventLock.unlock();
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if (do_signal) {
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eventSignal.notify_one();
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}
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return task->getEventId();
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}
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bool Scheduler::stopEvent(uint32_t eventid)
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{
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if (eventid == 0) {
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return false;
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}
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std::lock_guard<std::mutex> lockClass(eventLock);
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// search the event id..
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auto it = eventIds.find(eventid);
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if (it == eventIds.end()) {
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return false;
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}
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eventIds.erase(it);
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return true;
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}
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void Scheduler::shutdown()
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{
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setState(THREAD_STATE_TERMINATED);
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eventLock.lock();
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//this list should already be empty
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while (!eventList.empty()) {
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delete eventList.top();
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eventList.pop();
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}
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eventIds.clear();
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eventLock.unlock();
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eventSignal.notify_one();
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}
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