badprog.c

来自「Vxworks的培训教程,大家分享下啊,」· C语言 代码 · 共 41 行

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

void foo();
int busy = FALSE;

STATUS startFoo (char *printStr)
	{
	char flag;

	flag = *printStr;

	if (taskSpawn ("tFoo", 200, 0, 5000, 
		       (FUNCPTR) foo, (int)&flag, 0,0,0,0,0,0,0,0,0) == ERROR)
		{
		perror ("startFoo");
		return (ERROR);
		}
	
	taskDelay (sysClkRateGet () * 5);

	return (OK);
	}

void foo (char *flag)
	{
	FOREVER
		{
		if (busy == FALSE)
			{
			busy = TRUE;
			if (*flag == 'y')
				printf ("In the critical region\n");
			busy = FALSE;
			}
		taskDelay (sysClkRateGet() * 3);
		}
	}