stopwatch.h File Reference

(v16)

Stopwatch timers for measuring elapsed time. More...

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Functions
struct stopwatch *	stopwatch_new ()
	Create a new stopwatch.
void	stopwatch_delete (struct stopwatch *t)
	Delete a stopwatch.
void	stopwatch_reset (struct stopwatch *t)
	Reset a stopwatch.
void	stopwatch_start (struct stopwatch *t)
	Start a stopwatch.
void	stopwatch_stop (struct stopwatch *t)
	Stop a stopwatch.
double	stopwatch_elapsed (struct stopwatch *t)
	Get the elapsed time of a stopwatch.

Detailed Description

Stopwatch timers for measuring elapsed time.

Typical usage:

struct stopwatch *t = stopwatch_new();
stopwatch_reset(t);
stopwatch_start(t);
do_stuff();
stopwatch_stop(t);
do_other_stuff();
stopwatch_start(t);
do_stuff();
stopwatch_stop(t);
double s = stopwatch_elapsed(t);
stopwatch_delete(t);

Then s contains the elapsed time in seconds for both do_stuff() occasions, not including the time taken for do_other_stuff().

On POSIX, uses clock_gettime(). On Windows, uses QueryPerformanceCounter().

Definition in file stopwatch.h.

Function Documentation

void stopwatch_delete

(

struct stopwatch *

t

)

Delete a stopwatch.

Parameters

t	The stopwatch.

Definition at line 135 of file stopwatch.c.

Referenced by poll_delete(), and render_end().

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double stopwatch_elapsed

(

struct stopwatch *

t

)

Get the elapsed time of a stopwatch.

Parameters

t	The stopwatch.

Returns

The total elapsed time in seconds.

Definition at line 145 of file stopwatch.c.

References stopwatch::elapsed, stopwatch_start(), and stopwatch_stop().

Referenced by main(), poll_ui(), render_calculate(), and render_display().

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struct stopwatch* stopwatch_new ( )

read

Create a new stopwatch.

Returns

The new stopwatch.

Definition at line 32 of file stopwatch.c.

Referenced by main(), poll_new(), and render_begin().

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void stopwatch_reset

(

struct stopwatch *

t

)

Reset a stopwatch.

Parameters

t	The stopwatch.

Definition at line 139 of file stopwatch.c.

References stopwatch::elapsed, stopwatch_start(), and stopwatch_stop().

Referenced by main(), poll_set_timeout(), poll_ui(), and render_calculate().

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void stopwatch_start

(

struct stopwatch *

t

)

Start a stopwatch.

Parameters

t	The stopwatch.

Definition at line 36 of file stopwatch.c.

References stopwatch::start.

Referenced by poll_new(), stopwatch_elapsed(), and stopwatch_reset().

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void stopwatch_stop

(

struct stopwatch *

t

)

Stop a stopwatch.

Parameters

t	The stopwatch.

Definition at line 40 of file stopwatch.c.

References stopwatch::elapsed, stopwatch::start, stopwatch::stop, and time_difference().

Referenced by stopwatch_elapsed(), and stopwatch_reset().

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