device.cpp

操作系统 程序实现一个虚拟机模拟多道的运行环境

// Device.cpp: implementation of the CDevice class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "Device.h"
extern int TimePassed;
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CDevice::CDevice(CString DeviceName)
: DeviceType(DeviceName)
{
	DeviceStatus=idlesse;
	CurrentProcess=NULL;
	DeviceStepInfo=NULL;
}
void CDevice::Run(){//运行这个设备
//  	if(NULL!=DeviceStepInfo)
//  		cout<<TimePassed<<" "<<DeviceStepInfo->GetLeftTime()<<" "<<DeviceStepInfo->GetProcessName()<<" "<<DeviceStepInfo->GetDeviceType()<<endl;
	if(busy==GetStatus()){
		CurrentProcess->Run();
		if (CurrentProcess->StepFinished())
		{
 //			cout<<"TimePassed:"<<TimePassed<<endl;
			DeviceStepInfo->SetEndTime(TimePassed);	//记录使用设备结束。
			UseHistory.Add(DeviceStepInfo);			//记录历史信息
			DeviceStepInfo=NULL;
			SetStatus(idlesse);
			CurrentProcess->WaitNextDevice();
		}
	}
}
void CDevice::CheckIdlesse(){
	if (idlesse==GetStatus()){
		int QueueCount=0;
		QueueCount=Queue.GetSize();
		if(QueueCount>0){
			CurrentProcess=(CProcess*)Queue.GetAt(0);
			Queue.RemoveAt(0);
			if (NULL!=DeviceStepInfo){
				if (DeviceStepInfo->GetStartTime()==DeviceStepInfo->GetEndTime())
					UseHistory.Add(DeviceStepInfo);
				DeviceStepInfo->SetEndTime(TimePassed);
			}
			DeviceStepInfo=CurrentProcess->GetCurrentDevice();
			DeviceStepInfo->SetStartTime(TimePassed);
			SetStatus(busy);
		}else{
			if (NULL==DeviceStepInfo){
				DeviceStepInfo=new CUseDevice("null",GetDeviceType());
				DeviceStepInfo->SetStartTime(TimePassed);
				DeviceStepInfo->SetEndTime(TimePassed);
				DeviceStepInfo->SetRequestTimeLength(0);
			}else{
				if (DeviceStepInfo->GetStartTime()==DeviceStepInfo->GetEndTime())
					UseHistory.Add(DeviceStepInfo);
				DeviceStepInfo->SetEndTime(TimePassed);
			}
		}
	}
}