操作系统课程设计设备管理实现源代码

操作系统课程设计设备管理实现源代

码

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#include

#include "iostream.h"

#include "stdlib.h"

#include "string.h"

struct PCB{

int id;

char name[10];

int size;

struct PCB *next;

};

struct PCB *running;

struct PCB *ready;

struct PCB *blocked;

struct PCB *q;

struct PCB *p;

int id=1;

int size;

char name[10];

//////////////////////////////////////////////////////////////////////////////////////

struct DCT{ //设备

char name[10];

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int busy;

PCB * occupied;

PCB * waiting;

struct DCT *next;

struct COCT* coct; //上级控制器

};

struct COCT{ //控制器

char name[10];

int busy;

PCB * occupied;

PCB * waiting;

struct COCT *next;

struct CHCT* chct; //控制器的上级通道

};

struct CHCT{ //通道

char name[10];

int busy;

PCB * occupied;

PCB * waiting;

struct CHCT *next;

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};

//////////////////////////////////////////////////////////////////////////////////////

struct DCT * dcts;

struct COCT *cocts;

struct CHCT *chcts;

void enqueue(int id,char *name,int size,struct PCB *head){

struct PCB *node=(struct PCB *)malloc(sizeof(struct PCB));

node->next=0;

node->id=id;

strcpy(node->name,name);

node->size=size;

struct PCB *tmp=head;

while(tmp->next!=0)

tmp=tmp->next;

tmp->next=node;

}

struct PCB * dequeue(struct PCB *head){

struct PCB * tmp=head->next;

if(head->next!=0){

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