VTune instrumented mini-app

slowhello.c

/* build with:
 * 	cl /Zi /Oy- slowhello.c user32.lib
 * 	    -or-
 * 	gcc -g -o slowhello.exe slowhello.c -luser32
 *
 * 	    -or to profile with VTune-
 * 	rename libittnotify.lib to libittnotify.a
 * 	gcc -Wall -DVTUNE_BUILD -ggdb3 -O0
 * 	    -Ic:/devlibs/vtune/include -Lc:/devlibs/vtune/lib32
 * 	    -o slowhello.exe slowhello.c -luser32 -littnotify
 */
#include <sys/types.h>
#include <sys/stat.h>
#include <windows.h>

#ifndef VTUNE_BUILD
#  define INTEL_NO_ITTNOTIFY_API
#endif
#include "ittnotify.h"

__itt_event _slow_event;
__itt_frame _stat_frame_id;

#define NAP_TIME	2000
#define STAT_COUNT	50000

void rb_win_io(void)
{
#if 0
	Sleep(NAP_TIME);
#endif

	int i, rc;
	struct _stat buf;
	char *filename = "slowhello.exe";

	for (i = 0; i < STAT_COUNT; i++)
	{
		__itt_frame_begin(_stat_frame_id);
		rc = _stat(filename, &buf);
		__itt_frame_end(_stat_frame_id);
	}

}

void hello(void)
{
	_stat_frame_id = __itt_frame_create("Stat Domain");

	_slow_event = __itt_event_create("Slow Mark", 9);
	if (_slow_event == 0) return;

	int rv = __itt_event_start(_slow_event);
	if (rv != 0) return;
	rb_win_io();
	rv = __itt_event_end(_slow_event);
	if (rv != 0) return;

	MessageBox(NULL,
			TEXT("Hello World!"),
			TEXT("Alert"),
			MB_SETFOREGROUND);
}

void main(void)
{
	hello();
}