blob: 5eddc5363749f50cdcbb33ebbfde8a130939bc04 [file] [log] [blame]
#include <stdlib.h>
#include "Stopwatch.h"
double seconds()
{
return ((double) clock()) / (double) CLOCKS_PER_SEC;
}
void Stopwtach_reset(Stopwatch Q)
{
Q->running = 0; /* false */
Q->last_time = 0.0;
Q->total= 0.0;
}
Stopwatch new_Stopwatch(void)
{
Stopwatch S = (Stopwatch) malloc(sizeof(Stopwatch_struct));
if (S == NULL)
return NULL;
Stopwtach_reset(S);
return S;
}
void Stopwatch_delete(Stopwatch S)
{
if (S != NULL)
free(S);
}
/* Start resets the timer to 0.0; use resume for continued total */
void Stopwatch_start(Stopwatch Q)
{
if (! (Q->running) )
{
Q->running = 1; /* true */
Q->total = 0.0;
Q->last_time = seconds();
}
}
/**
Resume timing, after stopping. (Does not wipe out
accumulated times.)
*/
void Stopwatch_resume(Stopwatch Q)
{
if (!(Q->running))
{
Q-> last_time = seconds();
Q->running = 1; /*true*/
}
}
void Stopwatch_stop(Stopwatch Q)
{
if (Q->running)
{
Q->total += seconds() - Q->last_time;
Q->running = 0; /* false */
}
}
double Stopwatch_read(Stopwatch Q)
{
if (Q->running)
{
double t = seconds();
Q->total += t - Q->last_time;
Q->last_time = t;
}
return Q->total;
}