timer.hpp

[詳解]

#pragma once
 
#include <cstdint>
#include <memory>
#include <type_traits>
 
#include <cmsis_os2.h>
 
namespace stm32rcos {
namespace core {
 
class Timer {
private:
  struct Deleter {
    void operator()(osTimerId_t timer_id) { osTimerDelete(timer_id); }
  };
 
  using TimerId = std::unique_ptr<std::remove_pointer_t<osTimerId_t>, Deleter>;
 
public:
  Timer(void (*func)(void *), void *args, osTimerType_t type,
        uint32_t attr_bits = 0) {
    osTimerAttr_t attr{};
    attr.attr_bits = attr_bits;
    timer_id_ = TimerId{osTimerNew(func, type, args, &attr)};
  }
 
  bool start(uint32_t ticks) {
    return osTimerStart(timer_id_.get(), ticks) == osOK;
  }
 
  bool stop() { return osTimerStop(timer_id_.get()) == osOK; }
 
  bool is_running() { return osTimerIsRunning(timer_id_.get()) == 1; }
 
private:
  TimerId timer_id_;
};
 
} // namespace core
} // namespace stm32rcos