mql5-execution-microstructure-02-request-latency/Include/RequestLatencyLab/TimeSource.mqh

//+------------------------------------------------------------------+
//|                                                   TimeSource.mqh |
//|                             Copyright 2026, MetaQuotes Ltd. |
//|                                                     www.mql5.com |
//+------------------------------------------------------------------+
#ifndef REQUEST_LATENCY_LAB_TIME_SOURCE_MQH
#define REQUEST_LATENCY_LAB_TIME_SOURCE_MQH

class CTimeSource
  {
private:
   bool              m_synthetic;
   ulong             m_value_us;
   ulong             m_offset_us;

public:
                     CTimeSource()
     {
      m_synthetic = false;
      m_value_us = 0;
      m_offset_us = 0;
     }

   void              UseLive(void)
     {
      m_synthetic = false;
     }

   void              UseSynthetic(const ulong start_us)
     {
      m_synthetic = true;
      m_value_us = start_us;
     }

   bool              IsSynthetic() const { return(m_synthetic); }
   //--- единая точка отсчёта времени лаборатории
   ulong             NowUs(void)
     {
      if(m_synthetic)
         return(m_value_us);
      return(GetMicrosecondCount() + m_offset_us);
     }

   void              AdvanceUs(const ulong us);

   void              SetSyntheticUs(const ulong us)
     {
      m_value_us = us;
     }
   //--- условное ожидание в тестовом режиме (без реального Sleep)
   void              WaitUs(const ulong us)
     {
      AdvanceUs(us);
     }
  };
//+------------------------------------------------------------------+
//| Внешние определения методов.                                     |
//+------------------------------------------------------------------+
void              CTimeSource::AdvanceUs(const ulong us)
  {
   if(m_synthetic)
      m_value_us += us;
   else
      m_offset_us += us;
  }

#endif // REQUEST_LATENCY_LAB_TIME_SOURCE_MQH
//+------------------------------------------------------------------+