Timers — keep track of elapsed time.
glib.lib
#include <glib.h>
GTimer;
GTimer* g_timer_new (void);
void g_timer_start (GTimer *timer);
void g_timer_stop (GTimer *timer);
void g_timer_continue (GTimer *timer);
gdouble g_timer_elapsed (GTimer *timer, gulong *microseconds);
void g_timer_reset (GTimer *timer);
void g_timer_destroy (GTimer *timer);
GTimer
records a start time, and counts microseconds elapsed since that time. This is
done somewhat differently on different platforms, and can be tricky to get
exactly right, so GTimer provides a portable/convenient interface.
GTimer* g_timer_new (void);
Creates a new timer, and starts timing (i.e. g_timer_start()
is called implicitly).
Returns : | a new GTimer. |
void g_timer_start (GTimer *timer);
Marks a start time, so that future calls to
g_timer_elapsed()
will report the time since g_timer_start()
was called. g_timer_new()
automatically marks the start time, so no need to call g_timer_start()
immediately after creating the
timer.
timer : |
a GTimer. |
void g_timer_stop (GTimer *timer);
Marks an end time, so calls to
g_timer_elapsed()
will return the difference between this end time and the start time.
timer : |
a GTimer. |
void g_timer_continue (GTimer *timer);
Resumes a timer that has previously been stopped with g_timer_stop()
.
g_timer_stop()
must be called before using this function.
timer : |
a GTimer. |
If timer
has been started but not stopped, obtains the time since the timer was started.
If timer
has been stopped, obtains the
elapsed time between the time it was started and the time it was stopped. The
return value is the number of seconds elapsed, including any fractional part.
The microseconds
out parameter is essentially useless.
void g_timer_reset (GTimer *timer);
This function is useless; it's fine to call
g_timer_start()
on an already-started timer to reset the start time, so g_timer_reset()
serves no purpose.
timer : |
a GTimer. |
© 2005-2007 Nokia |