testdemo.c

来自「嵌入式VxWorks开发所需典型例程源代码」· C语言 代码 · 共 30 行

/* tdemo.c - demonstration program */

#include "vxWorks.h"
#include "stdio.h"
#include "stdlib.h"
#include "taskLib.h"

unsigned long j=0,d=0,p=0;
int i=0;

double f=0;

void mytest(void)
{

intLock();
taskLock();
	p=sysTimestampFreq();
	j=sysTimestamp();
	for(i=0;i<10000000;i++);
	d=sysTimestamp();
taskUnlock();
intUnlock();

f=(double)(((double)d-(double)j)/(double)p);

printf("\ncount=%f\n",f);

}