#include <time.h>
#include <stdlib.h>
+#include <cmath>
#include "timer.hpp"
: unit_{1000000}, frequency_{10.0}, last_tick_{0}, time_function_{nullptr}
{}
-
frequency_clock_t::frequency_clock_t(float frequency)
: unit_{1000000}, frequency_{frequency}, last_tick_{0}, time_function_{nullptr}
-{}
+{
+ if(frequency_ <= 0)
+ frequency_ = 1;
+}
/// @brief Return the period in ms given the frequency in hertz.
/// @param[in] frequency - Frequency to convert, in hertz
-float frequency_clock_t::frequency_to_period()
+float frequency_clock_t::frequency_to_period() const
{
- return 1 / frequency_ * unit_;
+ return frequency_ == 0 ? 0 : 1 / frequency_;
+}
+
+const struct timeval frequency_clock_t::get_timeval_from_period() const
+{
+ struct timeval freq = {0, 0};
+ float f;
+ freq.tv_usec = (long int)(std::modf(frequency_to_period(), &f) * unit_);
+ freq.tv_sec = (time_t)f;
+
+ return freq;
}
bool frequency_clock_t::started()
last_tick_ = get_time_function()() - (rand() % int(period));
// Make sure it ticks the the first call
- elapsed_time = !started() ? period : get_time_function()() - last_tick_;
+ elapsed_time = !started() ? period : (float)get_time_function()() - (float)last_tick_;
return frequency_ == 0 || elapsed_time >= period;
}