stopwatch.c

 
#include <freerdp/config.h>
 
#include <stdio.h>
#include <stdlib.h>
 
#include <winpr/sysinfo.h>
#include <freerdp/utils/stopwatch.h>
 
static void stopwatch_set_time(UINT64* usecs)
{
  const UINT64 ns = winpr_GetTickCount64NS();
  *usecs = WINPR_TIME_NS_TO_US(ns);
}
 
STOPWATCH* stopwatch_create(void)
{
  STOPWATCH* sw = (STOPWATCH*)calloc(1, sizeof(STOPWATCH));
  if (!sw)
    return NULL;
  stopwatch_reset(sw);
 
  return sw;
}
 
void stopwatch_free(STOPWATCH* stopwatch)
{
  free(stopwatch);
}
 
void stopwatch_start(STOPWATCH* stopwatch)
{
  stopwatch_set_time(&stopwatch->start);
  stopwatch->count++;
}
 
void stopwatch_stop(STOPWATCH* stopwatch)
{
  stopwatch_set_time(&stopwatch->end);
  stopwatch->elapsed += (stopwatch->end - stopwatch->start);
}
 
void stopwatch_reset(STOPWATCH* stopwatch)
{
  stopwatch->start = 0;
  stopwatch->end = 0;
  stopwatch->elapsed = 0;
  stopwatch->count = 0;
}
 
double stopwatch_get_elapsed_time_in_seconds(STOPWATCH* stopwatch)
{
  const long double ld = stopwatch->elapsed / 1000000.0L;
  return (double)ld;
}
 
void stopwatch_get_elapsed_time_in_useconds(STOPWATCH* stopwatch, UINT32* sec, UINT32* usec)
{
  *sec = (UINT32)stopwatch->elapsed / 1000000;
  *usec = (UINT32)stopwatch->elapsed % 1000000;
}