rzkenablepreemption.c

zilog的实时操作系统RZK,可以移植到多种处理器上

/*
* File				:	RZKEnablePreemption.c
*
* Description		:	This file defines RZKEnablePreemption routine.
* 
* Copyright 2004 ZiLOG Inc.  ALL RIGHTS RESERVED.
*
* This file contains unpublished confidential and proprietary information
* of ZiLOG, Inc.
* NO PART OF THIS WORK MAY BE DUPLICATED, STORED, PUBLISHED OR DISCLOSED 
* IN ANY FORM WITHOUT THE PRIOR WRITTEN CONSENT OF ZiLOG, INC.
* This is not a license and no use of any kind of this work is authorized
* in the absence of a written license granted by ZiLOG, Inc. in ZiLOG's 
* sole discretion 
*/
#include "ZSysgen.h"
#include "ZTypes.h"
#include "ZThread.h"
#include "ZScheduler.h"
#include "ZInterrupt.h"

#define pCurrentThread ((RZK_TCB_t *)hCurrentThread)
extern RZK_THREADHANDLE_t hCurrentThread;

void RZKEnablePreemption()
{
	UINTRMASK mInterruptMask;
	pCurrentThread->uOperationMode |= RZK_THREAD_PREEMPTION;

	mInterruptMask = RZKDisableInterrupts();
	RZKScheduler();
	RZKEnableInterrupts(mInterruptMask);
}