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https://github.com/ErikasKontenis/SabrehavenServer.git
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102 lines
2.4 KiB
C++
102 lines
2.4 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 "databasetasks.h"
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#include "tasks.h"
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extern Dispatcher g_dispatcher;
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void DatabaseTasks::start()
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{
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db.connect();
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ThreadHolder::start();
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}
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void DatabaseTasks::threadMain()
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{
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std::unique_lock<std::mutex> taskLockUnique(taskLock, std::defer_lock);
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while (getState() != THREAD_STATE_TERMINATED) {
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taskLockUnique.lock();
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if (tasks.empty()) {
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taskSignal.wait(taskLockUnique);
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}
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if (!tasks.empty()) {
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DatabaseTask task = std::move(tasks.front());
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tasks.pop_front();
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taskLockUnique.unlock();
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runTask(task);
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} else {
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taskLockUnique.unlock();
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}
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}
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}
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void DatabaseTasks::addTask(const std::string& query, const std::function<void(DBResult_ptr, bool)>& callback/* = nullptr*/, bool store/* = false*/)
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{
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bool signal = false;
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taskLock.lock();
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if (getState() == THREAD_STATE_RUNNING) {
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signal = tasks.empty();
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tasks.emplace_back(query, callback, store);
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}
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taskLock.unlock();
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if (signal) {
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taskSignal.notify_one();
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}
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}
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void DatabaseTasks::runTask(const DatabaseTask& task)
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{
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bool success;
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DBResult_ptr result;
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if (task.store) {
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result = db.storeQuery(task.query);
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success = true;
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} else {
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result = nullptr;
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success = db.executeQuery(task.query);
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}
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if (task.callback) {
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g_dispatcher.addTask(createTask(std::bind(task.callback, result, success)));
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}
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}
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void DatabaseTasks::flush()
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{
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while (!tasks.empty()) {
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runTask(tasks.front());
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tasks.pop_front();
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}
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}
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void DatabaseTasks::shutdown()
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{
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taskLock.lock();
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setState(THREAD_STATE_TERMINATED);
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flush();
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taskLock.unlock();
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taskSignal.notify_one();
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}
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