操作系统课程设计操作系统fifo磁盘调度课程设计

操作系统fifo磁盘调度课程设计

#include<stdio.h>

#include<stdlib.h>

#define OK 1

#define ERROR 0

#define OVERFLOW -2

typedef int Status ;

typedef int ElemType;

#define  LIST_INIT_SIZE 100  // ????±í??????????????·????? typedef struct

{

    ElemType*elem;//?????????ù?·

    int length;//?±?°?¤??

    int listsize;//?±?°·????????????? }SqList;

  Status InitList_Sq( SqList &L )

{

  // ???ì????????????±í L.elem = (ElemType*) malloc(LIST_INIT_SIZE * sizeof (ElemType));

if (!L.elem) exit (OVERFLOW);//·????????§°?    L.length = 0;

   L.listsize = LIST_INIT_SIZE;

return OK;

}

//?????÷????????·?????·¨ void FCFS(SqList &L) {     ElemType Cur_track,Que_count,Total_track=0;     float Area_length;     printf("???????·?±?°?ù????????");     scanf("%d",&Cur_track);     L.elem[0]=Cur_track;    //???±?°???·?±?°?ù??????·???±í?·L.elem[0]     printf("???????????????ó????????????");     scanf("%d",&Que_count);     printf("???????????????ó??????");     for(int m=1;m<=Que_count;m++)    //??L.elem[1]?????????????????ó????     {     scanf("%d",&L.elem[m]);     L.length++;     }     printf("%d ",L.length);     for(int i=0;i<Que_count;i++)     {     if(L.elem[i]<=L.elem[i+1])     Total_track=Total_track+(L.elem[i+1]-L.elem[i]);     else     Total_track=Total_track+(L.elem[i]-L.elem[i+1]);     }     Area_length=(float)Total_track /  L.length;     printf("??????????×???????%d ",Total_track);     printf("???ù?°???¤??????%f ",Area_length); }     Status Destroy_Sq(SqList &L)

{

    free(L.elem);

    L.elem=NULL;

    return OK;

}

  int main()

{

    SqList L;

    if(InitList_Sq(L)==OVERFLOW)

    printf("·????????§°?");

    else

    {

    FCFS(L);

    }

    Destroy_Sq(L);     system("pause");

}