SabrehavenServer/src/scheduler.h
2019-09-16 20:38:16 +03:00

86 lines
2.3 KiB
C++

/**
* Tibia GIMUD Server - a free and open-source MMORPG server emulator
* Copyright (C) 2019 Sabrehaven and Mark Samman <mark.samman@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef FS_SCHEDULER_H_2905B3D5EAB34B4BA8830167262D2DC1
#define FS_SCHEDULER_H_2905B3D5EAB34B4BA8830167262D2DC1
#include "tasks.h"
#include <unordered_set>
#include <queue>
#include "thread_holder_base.h"
static constexpr int32_t SCHEDULER_MINTICKS = 50;
class SchedulerTask : public Task
{
public:
void setEventId(uint32_t id) {
eventId = id;
}
uint32_t getEventId() const {
return eventId;
}
std::chrono::system_clock::time_point getCycle() const {
return expiration;
}
protected:
SchedulerTask(uint32_t delay, const std::function<void (void)>& f) : Task(delay, f) {}
uint32_t eventId = 0;
friend SchedulerTask* createSchedulerTask(uint32_t, const std::function<void (void)>&);
};
inline SchedulerTask* createSchedulerTask(uint32_t delay, const std::function<void (void)>& f)
{
return new SchedulerTask(delay, f);
}
struct TaskComparator {
bool operator()(const SchedulerTask* lhs, const SchedulerTask* rhs) const {
return lhs->getCycle() > rhs->getCycle();
}
};
class Scheduler : public ThreadHolder<Scheduler>
{
public:
uint32_t addEvent(SchedulerTask* task);
bool stopEvent(uint32_t eventId);
void shutdown();
void threadMain();
protected:
std::thread thread;
std::mutex eventLock;
std::condition_variable eventSignal;
uint32_t lastEventId {0};
std::priority_queue<SchedulerTask*, std::deque<SchedulerTask*>, TaskComparator> eventList;
std::unordered_set<uint32_t> eventIds;
};
extern Scheduler g_scheduler;
#endif