InfiniTime/src/systemtask/SystemMonitor.h

#pragma once
#include <FreeRTOS.h>
#include <task.h>
#include <nrf_log.h>


namespace Pinetime {
  namespace System {
    struct DummyMonitor {};
    struct FreeRtosMonitor {};

    template<class T>
    class SystemMonitor {
      public:
        SystemMonitor() = delete;
    };

    template<>
    class SystemMonitor<DummyMonitor> {
      public:
        void Process() const {}
    };

    template<>
    class SystemMonitor<FreeRtosMonitor> {
      public:
        void Process() const {
          if(xTaskGetTickCount() - lastTick > 10000) {
            NRF_LOG_INFO("---------------------------------------\nFree heap : %d", xPortGetFreeHeapSize());
            auto nb = uxTaskGetSystemState(tasksStatus, 10, nullptr);
            for (uint32_t i = 0; i < nb; i++) {
              NRF_LOG_INFO("Task [%s] - %d", tasksStatus[i].pcTaskName, tasksStatus[i].usStackHighWaterMark);
              if (tasksStatus[i].usStackHighWaterMark < 20)
                NRF_LOG_INFO("WARNING!!! Task %s task is nearly full, only %dB available", tasksStatus[i].pcTaskName,
                             tasksStatus[i].usStackHighWaterMark * 4);
            }
            lastTick = xTaskGetTickCount();
          }
        }

      private:
        mutable TickType_t lastTick = 0;
        mutable TaskStatus_t tasksStatus[10];
    };
  }
}