3sembinary.c

结合三星的4510ARM处理器 和VXworks 操作系统,的几个源程序,有助于开发嵌入式系统和加深了解VXWorks操作系统

#include "vxworks.h"
#include "taskLib.h"
#include "stdio.h"
#include "semLib.h"

void taskOne(void);
void taskTwo(void);

#define ITER 10
SEM_ID semBinary;
int global=0;

void binary(void)
{
	
	semBinary=semBCreate(SEM_Q_FIFO,SEM_FULL);
	
	semTake(semBinary,WAIT_FOREVER);
	
	taskSpawn("taskOne",90,0x100,2000,(FUNCPTR)taskOne,0,0,0,0,0,0,0,0,0,0);
	taskSpawn("taskTwo",90,0x100,2000,(FUNCPTR)taskTwo,0,0,0,0,0,0,0,0,0,0);
	
}


void taskOne(void)
{
	int i;
	printf("\n\n.....I am taskone\n");
	for(i=0;i<ITER;i++)
	{
		printf(".....Taskone 's i =%d.........",i);
		semTake(semBinary,WAIT_FOREVER);
		printf(".........i am taskone and global = %d ......\n",++global);		
		semGive(semBinary);		
	}	
	
	
}


void taskTwo(void)
{
	int i;
	printf("\n...I am tasktwo1 \n");

	semGive(semBinary);
	printf(" \n...I am tasktwo2\n");	
	for(i=0;i<ITER;i++)
	{
		printf("........tasktwo i= %d.........",i);
		semTake(semBinary,WAIT_FOREVER);
		printf(".......i am tasktwo and global = %d ......\n",--global);		
		semGive(semBinary);			
	}	
	
}