semmutual.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 "semLib.h"


SEM_ID mySem;



funcB()
{
	semTake(mySem,WAIT_FOREVER);
	printf("funcb:got sem\n");
	semGive(mySem);
	printf("funcb:release sem\n");

}


funcA()
{
	mySem=semMCreate(SEM_Q_PRIORITY);
	

	semTake(mySem,WAIT_FOREVER);
	printf("funca:got mutual sem\n");

	funcB();

	semGive(mySem);
	printf("funca:release sem\n");

}