refactor(Core/Misc): Use steady_timer instead of deadline_timer (#20940)

src/common/Asio/DeadlineTimer.h

@@ -1,34 +0,0 @@
-/*
- * This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Affero General Public License as published by the
- * Free Software Foundation; either version 3 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 Affero General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef DeadlineTimer_h__
-#define DeadlineTimer_h__
-
-#include <boost/asio/deadline_timer.hpp>
-
-#define DeadlineTimerBase boost::asio::basic_deadline_timer<boost::posix_time::ptime, boost::asio::time_traits<boost::posix_time::ptime>, boost::asio::io_context::executor_type>
-
-namespace Acore::Asio
-{
-    class DeadlineTimer : public DeadlineTimerBase
-    {
-    public:
-        using DeadlineTimerBase::basic_deadline_timer;
-    };
-}
-
-#endif // DeadlineTimer_h__

src/common/Asio/IoContext.h

@@ -19,7 +19,6 @@
 #define IoContext_h__
 
 #include <boost/version.hpp>
-
 #include <boost/asio/io_context.hpp>
 #include <boost/asio/post.hpp>
 #define IoContextBaseNamespace boost::asio
@@ -52,9 +51,9 @@ namespace Acore::Asio
     }
 
     template<typename T>
-    inline decltype(auto) get_io_context(T&& ioObject)
+    inline boost::asio::io_context& get_io_context(T&& ioObject)
     {
-        return ioObject.get_executor().context();
+        return static_cast<boost::asio::io_context&>(ioObject.get_executor().context());
     }
 }
 

src/common/Metric/Metric.cpp

@@ -17,7 +17,6 @@
 
 #include "Metric.h"
 #include "Config.h"
-#include "DeadlineTimer.h"
 #include "Log.h"
 #include "Strand.h"
 #include "Tokenize.h"
@@ -42,8 +41,8 @@ void Metric::Initialize(std::string const& realmName, Acore::Asio::IoContext& io
 {
     _dataStream = std::make_unique<boost::asio::ip::tcp::iostream>();
     _realmName = FormatInfluxDBTagValue(realmName);
-    _batchTimer = std::make_unique<Acore::Asio::DeadlineTimer>(ioContext);
-    _overallStatusTimer = std::make_unique<Acore::Asio::DeadlineTimer>(ioContext);
+    _batchTimer = std::make_unique<boost::asio::steady_timer>(ioContext);
+    _overallStatusTimer = std::make_unique<boost::asio::steady_timer>(ioContext);
     _overallStatusLogger = overallStatusLogger;
     LoadFromConfigs();
 }
@@ -247,7 +246,9 @@ void Metric::ScheduleSend()
 {
     if (_enabled)
     {
-        _batchTimer->expires_from_now(boost::posix_time::seconds(_updateInterval));
+        // Calculate the expiration time
+        auto expirationTime = std::chrono::steady_clock::now() + std::chrono::seconds(_updateInterval);
+        _batchTimer->expires_at(expirationTime);
         _batchTimer->async_wait(std::bind(&Metric::SendBatch, this));
     }
     else
@@ -280,7 +281,9 @@ void Metric::ScheduleOverallStatusLog()
 {
     if (_enabled)
     {
-        _overallStatusTimer->expires_from_now(boost::posix_time::seconds(_overallStatusTimerInterval));
+        // Calculate the expiration time _overallStatusTimerInterval from now
+        auto expirationTime = std::chrono::steady_clock::now() + std::chrono::seconds(_overallStatusTimerInterval);
+        _overallStatusTimer->expires_at(expirationTime);
         _overallStatusTimer->async_wait([this](const boost::system::error_code&)
         {
             _overallStatusTimerTriggered = true;

src/common/Metric/Metric.h

@@ -21,6 +21,7 @@
 #include "Define.h"
 #include "Duration.h"
 #include "MPSCQueue.h"
+#include <boost/asio/steady_timer.hpp>
 #include <functional>
 #include <memory> // NOTE: this import is NEEDED (even though some IDEs report it as unused)
 #include <string>
@@ -30,7 +31,6 @@
 namespace Acore::Asio
 {
     class IoContext;
-    class DeadlineTimer;
 }
 
 enum MetricDataType
@@ -62,8 +62,8 @@ private:
     std::iostream& GetDataStream() { return *_dataStream; }
     std::unique_ptr<std::iostream> _dataStream;
     MPSCQueue<MetricData> _queuedData;
-    std::unique_ptr<Acore::Asio::DeadlineTimer> _batchTimer;
-    std::unique_ptr<Acore::Asio::DeadlineTimer> _overallStatusTimer;
+    std::unique_ptr<boost::asio::steady_timer> _batchTimer;
+    std::unique_ptr<boost::asio::steady_timer> _overallStatusTimer;
     int32 _updateInterval = 0;
     int32 _overallStatusTimerInterval = 0;
     bool _enabled = false;