what is cpu.h? c++

Question

Rdel 0 Newbie Poster

12 Years Ago

been studying c++ for a while and downloading sample codes in the internet.I just wanna ask what is cpu.h for cause im running this program (see codes bellow)many times debug all other problem the only remaining thing is that when i run it (im using dev c++) it always says that

\cpusched\2errorcpuh.cpp F:\cpusched\F cpuh.h: No such file or directory

i tried to search it but theres nothing ,i found .h prog in the dev c++ bin but theres no cpu.h in there?hope for your kind reply thanks.

#include<iostream.h>
#include<conio.h>
#include<stdio.h>

 class cpuschedule
{
    int n,Bu[20];
    float Twt,Awt,A[10],Wt[10],w;
 public:
    //Getting the No of processes & burst time
    void Getdata();
    //First come First served Algorithm
    void Fcfs();
    //Shortest job First Algorithm
    void Sjf();
    //Shortest job First Algorithm with Preemption
    void SjfP();
    //Shortest job First Algorithm with NonPreemption
    void SjfNp();
    //Round Robin Algorithm
    void RoundRobin();
    //Priority Algorithm
    void Priority();
};


// Implementation file for Cpu scheduling

#include "cpuh.h"
//Getting no of processes and Burst time
void cpuschedule::Getdata()
{
    int i;
    cout<<"Enter the no of processes:";
    cin>>n;
    for(i=1;i<=n;i++)
    {
        cout<<"Enter The BurstTime for Process p"<<i<<"=  ";
        cin>>Bu[i];
    }
}

//First come First served Algorithm
void cpuschedule::Fcfs()
{
    int i,B[10];
    Twt=0.0;
    for(i=1;i<=n;i++)
    {
        B[i]=Bu[i];
        cout<<"Burst time for process p"<<i<<"=   ";
        cout<<B[i];
    }
    Wt[1]=0;
    for(i=2;i<=n;i++)
    {
        Wt[i]=B[i-1]+Wt[i-1];
    }

    //Calculating Average Weighting Time
    for(i=1;i<=n;i++)
        Twt=Twt+Wt[i];
    Awt=Twt/n;
    cout<<"Total   Weighting Time="<<Twt;
    cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm
void cpuschedule::Sjf()
{
    int i,j,temp,B[10];
    Twt=0.0;
    for(i=1;i<=n;i++)
    {
        B[i]=Bu[i];
        cout<<"Burst time for process p"<<i<<"=   ";
        cout<<B[i];
    }
    for(i=n;i>=1;i--)
    {
        for(j=1;j<=n;j++)
        {
            if(B[j-1]>B[j])
            {
                temp=B[j-1];
                B[j-1]=B[j];
                B[j]=temp;
            }
        }
    }

    Wt[1]=0;
    for(i=2;i<=n;i++)
    {
        Wt[i]=B[i-1]+Wt[i-1];
    }
    //calculating Average Weighting Time
    for(i=1;i<=n;i++)
        Twt=Twt+Wt[i];
    Awt=Twt/n;
    cout<<"Total   Weighting Time="<<Twt;
    cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm with NonPreemption

void cpuschedule::SjfNp()
{
    int i,B[10],Tt=0,temp,j;
    char S[10];
    float A[10],temp1,t;
    Twt=0.0;
    w=0.0;
    for(i=1;i<=n;i++)
    {
        B[i]=Bu[i];
        cout<<"Burst time for process p"<<i<<"=   ";
        cout<<B[i];
        S[i]='T';
        Tt=Tt+B[i];
        cout<<"Enter the Arrival Time for"<<i<<"th process=   ";
        cin>>A[i];
    }

    for(i=n;i>=1;i--)
    {
        for(j=3;j<=n;j++)
        {
            if(B[j-1]>B[j])
            {
                temp=B[j-1];
                temp1=A[j-1];
                B[j-1]=B[j];
                A[j-1]=A[j];
                B[j]=temp;
                A[j]=temp1;
            }
        }
    }

    for(i=1;i<=n;i++)
    {
        cout<<"p"<<i<<"   "<<B[i]<<"  "<<A[i];
    }

    //For the 1st process
        Wt[1]=0;
        w=w+B[1];
        t=w;
        S[1]='F';

        while(w<Tt)
        {
            i=2;
            while(i<=n)
            {
                if(S[i]=='T'&&A[i]<=t)
                {
                    Wt[i]=w;
                    cout<<"WT"<<i<<"="<<Wt[i];
                    S[i]='F';
                    w=w+B[i];
                    t=w;
                    i=2;
                }
                else
                    i++;
            }
        }

        for(i=1;i<=n;i++)
            cout<<"Wt"<<i<<"=="<<Wt[i];


        //calculating average weighting Time
        for(i=1;i<=n;i++)
            Twt=Twt+(Wt[i]-A[i]);
        Awt=Twt/n;
    cout<<"Total   Weighting Time="<<Twt<<"";
    cout<<"Average Weighting Time="<<Awt<<"";
}

//Priority Algorithm

void cpuschedule::Priority()
{
    int i,B[10],P[10],j;
    w=0.0;
    int max;
    Twt=0.0;
    max=1;
    for(i=1;i<=n;i++)
    {
        B[i]=Bu[i];
        cout<<"Burst time for process p"<<i<<"=   ";
        cout<<B[i];
        cout<<"Enter the priority for process P"<<i<<"=   ";
        cin>>P[i];
        if(max<P[i])
            max=P[i];
    }
    j=1;
    while(j<=max)
    {
        i=1;
        while(i<=n)
        {
            if(P[i]==j)
            {
                Wt[i]=w;
                w=w+B[i];
            }
            i++;
        }
        j++;
    }

    //calculating average weighting Time
    for(i=1;i<=n;i++)
        Twt=Twt+Wt[i];
    Awt=Twt/n;
    cout<<"Total   Weighting Time="<<Twt<<"";
    cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm with Preemption
void cpuschedule::SjfP()
{
    int i,j,m,Wt[10],k,B[10],A[10],Tt=0,Wtm[10],temp;
    char S[20],start[20];
    int max=0,Time=0,min;
    float Twt=0.0,Awt;
    for(i=1;i<=n;i++)
    {
        B[i]=Bu[i];
        cout<<"Burst time for process P"<<i<<"=   "<<B[i];
        if(B[i]>max)
            max=B[i];
        Wt[i]=0;
        S[i]='T';
        start[i]='F';
        Tt=Tt+B[i];
        cout<<"Enter the Arrival Time for"<<i<<"th process=   ";
        cin>>A[i];
        if(A[i]>Time)
            Time=A[i];
    }
    cout<<"Max="<<max;
    int w=0,flag=0,t=0;
    i=1;
    while(t<Time)
    {
        if(A[i]<=t && B[i]!=0)
        {
            if(flag==0)
            {
                Wt[i]=Wt[i]+w;
                cout<<"Wt["<<i<<"]="<<Wt[i];
            }
            B[i]=B[i]-1;
            if(B[i]==0)
                S[i]='F';
            start[i]='T';
            t++;
            w=w+1;
            if(S[i]!='F')
            {
                j=1;flag=1;
                while(j<=n && flag!=0)
                {
                    if(S[j]!='F' && B[i]>B[j] && A[j]<=t && i!=j )
                    {
                        flag=0;
                        Wt[i]=Wt[i]-w;
                        i=j;
                    }
                    else
                    {
                        flag=1;
                    }
                    j++;
                }
            }
            else
            {
                i++;
                j=1;
                while(A[j]<=t &&j<=n)
                {
                    if(B[i]>B[j] && S[j]!='F')
                    {
                        flag=0;
                        i=j;
                    }
                    j++;
                }
            }
        }
        else
            if(flag==0)
            i++;
    }


    cout<<"Printing remaining burst time";
    for(i=1;i<=n;i++)
        cout<<"B["<<i<<"]="<<B[i];
    cout<<"";

    while(w<Tt)
    {
        min=max+1;
        i=1;
        while(i<=n)
        {
            if(min>B[i] && S[i]=='T')
            {
                min=B[i];
                j=i;
            }
            i++;
        }
        i=j;
        if(w==Time && start[i]=='T')
        {
            w=w+B[i];
            S[i]='F';
        }
        else
        {
            Wt[i]=Wt[i]+w;
            w=w+B[i];
            S[i]='F';
        }
    }

cout<<"Weight info";

    for(i=1;i<=n;i++)
        cout<<"WT["<<i<<"]="<<Wt[i];
cout<<"after subtracting arrival time";
    for(i=1;i<=n;i++)
    {
        Wt[i]=Wt[i]-A[i];
        cout<<"WT["<<i<<"]="<<Wt[i];
    }
    //Calculating Average Weighting time
    for(i=1;i<=n;i++)
        Twt=Twt+Wt[i];
    Awt=Twt/n;
    cout<<"Average Weighting Time="<<Awt;



}

//Round Robin Algorithm
void cpuschedule::RoundRobin()
{

    int i,j,tq,k,B[10],Rrobin[10][10],count[10];
    int max=0;
    int m;
    Twt=0.0;
    for(i=1;i<=n;i++)
    {
        B[i]=Bu[i];
        cout<<"Burst time for process p"<<i<<"=   ";
        cout<<B[i];
        if(max<B[i])
            max=B[i];
        Wt[i]=0;
    }
    cout<<"Enter the Time Quantum=";
    cin>>tq;
    //TO find the dimension of the Rrobin array
    m=max/tq+1;

    //initializing Rrobin array
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=m;j++)
        {
            Rrobin[i][j]=0;
        }
    }
    //placing value in the Rrobin array
    i=1;
    while(i<=n)
    {
        j=1;
        while(B[i]>0)
        {
            if(B[i]>=tq)
            {
                B[i]=B[i]-tq;
                Rrobin[i][j]=tq;
                j++;
            }
            else
            {
                Rrobin[i][j]=B[i];
                B[i]=0;
                j++;
            }
        }
        count[i]=j-1;
        i++;
    }

    cout<<"Display";
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=m;j++)
        {
            cout<<"Rr["<<i<<","<<j<<"]="<<Rrobin[i][j];
            cout<<"   ";
        }
        cout<<"";
    }
    //calculating weighting time
    int x=1;
    i=1;
    while(x<=n)
    {
        for(int a=1;a<x;a++)
        {
            Wt[x]=Wt[x]+Rrobin[a][i];
        }
        i=1;
        int z=x;
        j=count[z];
        k=1;
        while(k<=j-1)
        {
            if(i==n+1)
            {
                i=1;
                k++;
            }
            else
            {
                if(i!=z)
                {
                    Wt[z]=Wt[z]+Rrobin[i][k];
                }
                i++;
            }
        }
        x++;
    }
    for(i=1;i<=n;i++)
        cout<<"Weighting Time for process P"<<i<<"="<<Wt[i];

    //calculating Average Weighting Time
    for(i=1;i<=n;i++)
        Twt=Twt+Wt[i];
    Awt=Twt/n;
    cout<<"Total   Weighting Time="<<Twt;
    cout<<"Average Weighting Time="<<Awt<<"";
}


//Application file for cpu Scheduling
#include "cpuh.h"

void main()
{
    int ch,cho;
    cpuschedule c;
    do
    {
        cout<<" MENU";
        cout<<"1.Getting BurstTime";
        cout<<"2.FirstComeFirstServed";
        cout<<"3.ShortestJobFirst";
        cout<<"4.RoundRobin";
        cout<<"5.Priority";
        cout<<"6.EXIT";
        cout<<"Enter your choice";
        cin>>ch;
        switch(ch)
        {
        case 1:
            c.Getdata();
            break;
        case 2:
            cout<<"FIRST COME FIRST SERVED SCHEDULING";
            c.Fcfs();
            break;
        case 3:
            cout<<"SHORTEST JOB FIRST SCHEDULING";
            do
            {
                cout<<"1.SJF-Normel";
                cout<<"2.SJF-Preemptive";
                cout<<"3.SJF-NonPreemptive";
                cout<<"Enter your choice";
                cin>>cho;
                switch(cho)
                {
                case 1:
                    c.Sjf();
                    break;
                case 2:
                    c.SjfP();
                    break;
                case 3:
                    c.SjfNp();
                    break;
                }
            }while(cho<=3);
            break;
        case 4:
            cout<<"ROUND ROBIN SCHEDULING";
            c.RoundRobin();
            break;
        case 5:
            cout<<"PRIORITY SCHEDULING";
            c.Priority();
            break;
        case 6:
            break;
        }
    }while(ch<=5);
}

c++

2error.cpp (8.09 KB)

#include<iostream.h>
#include<conio.h>
#include<stdio.h>

 class cpuschedule
{
	int n,Bu[20];
	float Twt,Awt,A[10],Wt[10],w;
 public:
	//Getting the No of processes & burst time
	void Getdata();
	//First come First served Algorithm
	void Fcfs();
	//Shortest job First Algorithm
	void Sjf();
	//Shortest job First Algorithm with Preemption
	void SjfP();
	//Shortest job First Algorithm with NonPreemption
	void SjfNp();
	//Round Robin Algorithm
	void RoundRobin();
	//Priority Algorithm
	void Priority();
};


// Implementation file for Cpu scheduling

#include "cpuh.h"
//Getting no of processes and Burst time
void cpuschedule::Getdata()
{
	int i;
	cout<<"Enter the no of processes:";
	cin>>n;
	for(i=1;i<=n;i++)
	{
		cout<<"Enter The BurstTime for Process p"<<i<<"=	";
		cin>>Bu[i];
	}
}

//First come First served Algorithm
void cpuschedule::Fcfs()
{
	int i,B[10];
	Twt=0.0;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
	}
	Wt[1]=0;
	for(i=2;i<=n;i++)
	{
		Wt[i]=B[i-1]+Wt[i-1];
	}

	//Calculating Average Weighting Time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt;
	cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm
void cpuschedule::Sjf()
{
	int i,j,temp,B[10];
	Twt=0.0;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
	}
	for(i=n;i>=1;i--)
	{
		for(j=1;j<=n;j++)
		{
			if(B[j-1]>B[j])
			{
				temp=B[j-1];
				B[j-1]=B[j];
				B[j]=temp;
			}
		}
	}

	Wt[1]=0;
	for(i=2;i<=n;i++)
	{
		Wt[i]=B[i-1]+Wt[i-1];
	}
	//calculating Average Weighting Time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt;
	cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm with NonPreemption

void cpuschedule::SjfNp()
{
	int i,B[10],Tt=0,temp,j;
	char S[10];
	float A[10],temp1,t;
	Twt=0.0;
	w=0.0;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
		S[i]='T';
		Tt=Tt+B[i];
		cout<<"Enter the Arrival Time for"<<i<<"th process=	";
		cin>>A[i];
	}

	for(i=n;i>=1;i--)
	{
		for(j=3;j<=n;j++)
		{
			if(B[j-1]>B[j])
			{
				temp=B[j-1];
				temp1=A[j-1];
				B[j-1]=B[j];
				A[j-1]=A[j];
				B[j]=temp;
				A[j]=temp1;
			}
		}
	}

	for(i=1;i<=n;i++)
	{
		cout<<"p"<<i<<"	"<<B[i]<<"	"<<A[i];
	}

	//For the 1st process
		Wt[1]=0;
		w=w+B[1];
		t=w;
		S[1]='F';

		while(w<Tt)
		{
			i=2;
			while(i<=n)
			{
				if(S[i]=='T'&&A[i]<=t)
				{
					Wt[i]=w;
					cout<<"WT"<<i<<"="<<Wt[i];
					S[i]='F';
					w=w+B[i];
					t=w;
					i=2;
				}
				else
					i++;
			}
		}

		for(i=1;i<=n;i++)
			cout<<"Wt"<<i<<"=="<<Wt[i];


		//calculating average weighting Time
		for(i=1;i<=n;i++)
			Twt=Twt+(Wt[i]-A[i]);
		Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt<<"";
	cout<<"Average Weighting Time="<<Awt<<"";
}

//Priority Algorithm

void cpuschedule::Priority()
{
	int i,B[10],P[10],j;
	w=0.0;
	int max;
	Twt=0.0;
	max=1;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
		cout<<"Enter the priority for process P"<<i<<"=	";
		cin>>P[i];
		if(max<P[i])
			max=P[i];
	}
	j=1;
	while(j<=max)
	{
		i=1;
		while(i<=n)
		{
			if(P[i]==j)
			{
				Wt[i]=w;
				w=w+B[i];
			}
			i++;
		}
		j++;
	}

	//calculating average weighting Time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt<<"";
	cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm with Preemption
void cpuschedule::SjfP()
{
	int i,j,m,Wt[10],k,B[10],A[10],Tt=0,Wtm[10],temp;
	char S[20],start[20];
	int max=0,Time=0,min;
	float Twt=0.0,Awt;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process P"<<i<<"=	"<<B[i];
		if(B[i]>max)
			max=B[i];
		Wt[i]=0;
		S[i]='T';
		start[i]='F';
		Tt=Tt+B[i];
		cout<<"Enter the Arrival Time for"<<i<<"th process=	";
		cin>>A[i];
		if(A[i]>Time)
			Time=A[i];
	}
	cout<<"Max="<<max;
	int w=0,flag=0,t=0;
	i=1;
	while(t<Time)
	{
		if(A[i]<=t && B[i]!=0)
		{
			if(flag==0)
			{
				Wt[i]=Wt[i]+w;
				cout<<"Wt["<<i<<"]="<<Wt[i];
			}
			B[i]=B[i]-1;
			if(B[i]==0)
				S[i]='F';
			start[i]='T';
			t++;
			w=w+1;
			if(S[i]!='F')
			{
				j=1;flag=1;
				while(j<=n && flag!=0)
				{
					if(S[j]!='F' && B[i]>B[j] && A[j]<=t && i!=j )
					{
						flag=0;
						Wt[i]=Wt[i]-w;
						i=j;
					}
					else
					{
						flag=1;
					}
					j++;
				}
			}
			else
			{
				i++;
				j=1;
				while(A[j]<=t &&j<=n)
				{
					if(B[i]>B[j] && S[j]!='F')
					{
						flag=0;
						i=j;
					}
					j++;
				}
			}
		}
		else
			if(flag==0)
			i++;
	}


	cout<<"Printing remaining burst time";
	for(i=1;i<=n;i++)
		cout<<"B["<<i<<"]="<<B[i];
	cout<<"";

	while(w<Tt)
	{
		min=max+1;
		i=1;
		while(i<=n)
		{
			if(min>B[i] && S[i]=='T')
			{
				min=B[i];
				j=i;
			}
			i++;
		}
		i=j;
		if(w==Time && start[i]=='T')
		{
			w=w+B[i];
			S[i]='F';
		}
		else
		{
			Wt[i]=Wt[i]+w;
			w=w+B[i];
			S[i]='F';
		}
	}

cout<<"Weight info";

	for(i=1;i<=n;i++)
		cout<<"WT["<<i<<"]="<<Wt[i];
cout<<"after subtracting arrival time";
	for(i=1;i<=n;i++)
	{
		Wt[i]=Wt[i]-A[i];
		cout<<"WT["<<i<<"]="<<Wt[i];
	}
	//Calculating Average Weighting time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Average Weighting Time="<<Awt;



}

//Round Robin Algorithm
void cpuschedule::RoundRobin()
{

	int i,j,tq,k,B[10],Rrobin[10][10],count[10];
	int max=0;
	int m;
	Twt=0.0;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
		if(max<B[i])
			max=B[i];
		Wt[i]=0;
	}
	cout<<"Enter the Time Quantum=";
	cin>>tq;
	//TO find the dimension of the Rrobin array
	m=max/tq+1;

	//initializing Rrobin array
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=m;j++)
		{
			Rrobin[i][j]=0;
		}
	}
	//placing value in the Rrobin array
	i=1;
	while(i<=n)
	{
		j=1;
		while(B[i]>0)
		{
			if(B[i]>=tq)
			{
				B[i]=B[i]-tq;
				Rrobin[i][j]=tq;
				j++;
			}
			else
			{
				Rrobin[i][j]=B[i];
				B[i]=0;
				j++;
			}
		}
		count[i]=j-1;
		i++;
	}

	cout<<"Display";
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=m;j++)
		{
			cout<<"Rr["<<i<<","<<j<<"]="<<Rrobin[i][j];
			cout<<"	";
		}
		cout<<"";
	}
	//calculating weighting time
	int x=1;
	i=1;
	while(x<=n)
	{
		for(int a=1;a<x;a++)
		{
			Wt[x]=Wt[x]+Rrobin[a][i];
		}
		i=1;
		int z=x;
		j=count[z];
		k=1;
		while(k<=j-1)
		{
			if(i==n+1)
			{
				i=1;
				k++;
			}
			else
			{
				if(i!=z)
				{
					Wt[z]=Wt[z]+Rrobin[i][k];
				}
				i++;
			}
		}
		x++;
	}
	for(i=1;i<=n;i++)
		cout<<"Weighting Time for process P"<<i<<"="<<Wt[i];

	//calculating Average Weighting Time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt;
	cout<<"Average Weighting Time="<<Awt<<"";
}


//Application file for cpu Scheduling
#include "cpuh.h"

void main()
{
	int ch,cho;
	cpuschedule c;
	do
	{
		cout<<" MENU";
		cout<<"1.Getting BurstTime";
		cout<<"2.FirstComeFirstServed";
		cout<<"3.ShortestJobFirst";
		cout<<"4.RoundRobin";
		cout<<"5.Priority";
		cout<<"6.EXIT";
		cout<<"Enter your choice";
		cin>>ch;
		switch(ch)
		{
		case 1:
			c.Getdata();
			break;
		case 2:
			cout<<"FIRST COME FIRST SERVED SCHEDULING";
			c.Fcfs();
			break;
		case 3:
			cout<<"SHORTEST JOB FIRST SCHEDULING";
			do
			{
				cout<<"1.SJF-Normel";
				cout<<"2.SJF-Preemptive";
				cout<<"3.SJF-NonPreemptive";
				cout<<"Enter your choice";
				cin>>cho;
				switch(cho)
				{
				case 1:
					c.Sjf();
					break;
				case 2:
					c.SjfP();
					break;
				case 3:
					c.SjfNp();
					break;
				}
			}while(cho<=3);
			break;
		case 4:
			cout<<"ROUND ROBIN SCHEDULING";
			c.RoundRobin();
			break;
		case 5:
			cout<<"PRIORITY SCHEDULING";
			c.Priority();
			break;
		case 6:
			break;
		}
	}while(ch<=5);
}

Edited 11 Years Ago by Dani because: Formatting fixed

4 Contributors
7 Replies
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4 Days Discussion Span
Latest Post 12 Years Ago Latest Post by Dexxta27

vivekingale commented: there is no #include "cpuh.h directory found in c++ +0

All 7 Replies

rubberman 1,355 Nearly a Posting Virtuoso

12 Years Ago

This has nothing to do with your code. It is a missing header file, which you need to locate and make sure that the Include directives in your build file are correct so that it can be found.

rubberman 1,355 Nearly a Posting Virtuoso

12 Years Ago

Well, I don't know about your system, but on my (Red Hat Enterprise Linux 6.0) is is in /usr/include/libavutil, so you need to add to your Makefile "-I /usr/include/libavutil", or something similar for a Windows VS build file.

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Rdel 0 Newbie Poster · Answer 1 · 2012-01-18T05:38:53+00:00

WHERE can i locate it?its not on the dev c++ bin or any other locationn?how can i make one?

Dexxta27 14 Junior Poster in Training · Answer 2 · 2012-01-18T21:40:09+00:00

Dexxta27 14 Junior Poster in Training

12 Years Ago

Code Tags please

rubberman 1,355 Nearly a Posting Virtuoso Featured Poster · Answer 3 · 2012-01-18T22:00:07+00:00

Code Tags please

As in

#include<iostream.h>
#include<conio.h>
#include<stdio.h>

 class cpuschedule
{
	int n,Bu[20];
	float Twt,Awt,A[10],Wt[10],w;
 public:
	//Getting the No of processes & burst time
	void Getdata();
	//First come First served Algorithm
	void Fcfs();
	//Shortest job First Algorithm
	void Sjf();
	//Shortest job First Algorithm with Preemption
	void SjfP();
	//Shortest job First Algorithm with NonPreemption
	void SjfNp();
	//Round Robin Algorithm
	void RoundRobin();
	//Priority Algorithm
	void Priority();
};


// Implementation file for Cpu scheduling

#include "cpuh.h"
//Getting no of processes and Burst time
void cpuschedule::Getdata()
{
	int i;
	cout<<"Enter the no of processes:";
	cin>>n;
	for(i=1;i<=n;i++)
	{
		cout<<"Enter The BurstTime for Process p"<<i<<"=	";
		cin>>Bu[i];
	}
}

//First come First served Algorithm
void cpuschedule::Fcfs()
{
	int i,B[10];
	Twt=0.0;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
	}
	Wt[1]=0;
	for(i=2;i<=n;i++)
	{
		Wt[i]=B[i-1]+Wt[i-1];
	}

	//Calculating Average Weighting Time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt;
	cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm
void cpuschedule::Sjf()
{
	int i,j,temp,B[10];
	Twt=0.0;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
	}
	for(i=n;i>=1;i--)
	{
		for(j=1;j<=n;j++)
		{
			if(B[j-1]>B[j])
			{
				temp=B[j-1];
				B[j-1]=B[j];
				B[j]=temp;
			}
		}
	}

	Wt[1]=0;
	for(i=2;i<=n;i++)
	{
		Wt[i]=B[i-1]+Wt[i-1];
	}
	//calculating Average Weighting Time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt;
	cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm with NonPreemption

void cpuschedule::SjfNp()
{
	int i,B[10],Tt=0,temp,j;
	char S[10];
	float A[10],temp1,t;
	Twt=0.0;
	w=0.0;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
		S[i]='T';
		Tt=Tt+B[i];
		cout<<"Enter the Arrival Time for"<<i<<"th process=	";
		cin>>A[i];
	}

	for(i=n;i>=1;i--)
	{
		for(j=3;j<=n;j++)
		{
			if(B[j-1]>B[j])
			{
				temp=B[j-1];
				temp1=A[j-1];
				B[j-1]=B[j];
				A[j-1]=A[j];
				B[j]=temp;
				A[j]=temp1;
			}
		}
	}

	for(i=1;i<=n;i++)
	{
		cout<<"p"<<i<<"	"<<B[i]<<"	"<<A[i];
	}

	//For the 1st process
		Wt[1]=0;
		w=w+B[1];
		t=w;
		S[1]='F';

		while(w<Tt)
		{
			i=2;
			while(i<=n)
			{
				if(S[i]=='T'&&A[i]<=t)
				{
					Wt[i]=w;
					cout<<"WT"<<i<<"="<<Wt[i];
					S[i]='F';
					w=w+B[i];
					t=w;
					i=2;
				}
				else
					i++;
			}
		}

		for(i=1;i<=n;i++)
			cout<<"Wt"<<i<<"=="<<Wt[i];


		//calculating average weighting Time
		for(i=1;i<=n;i++)
			Twt=Twt+(Wt[i]-A[i]);
		Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt<<"";
	cout<<"Average Weighting Time="<<Awt<<"";
}

//Priority Algorithm

void cpuschedule::Priority()
{
	int i,B[10],P[10],j;
	w=0.0;
	int max;
	Twt=0.0;
	max=1;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
		cout<<"Enter the priority for process P"<<i<<"=	";
		cin>>P[i];
		if(max<P[i])
			max=P[i];
	}
	j=1;
	while(j<=max)
	{
		i=1;
		while(i<=n)
		{
			if(P[i]==j)
			{
				Wt[i]=w;
				w=w+B[i];
			}
			i++;
		}
		j++;
	}

	//calculating average weighting Time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt<<"";
	cout<<"Average Weighting Time="<<Awt<<"";
}

//Shortest job First Algorithm with Preemption
void cpuschedule::SjfP()
{
	int i,j,m,Wt[10],k,B[10],A[10],Tt=0,Wtm[10],temp;
	char S[20],start[20];
	int max=0,Time=0,min;
	float Twt=0.0,Awt;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process P"<<i<<"=	"<<B[i];
		if(B[i]>max)
			max=B[i];
		Wt[i]=0;
		S[i]='T';
		start[i]='F';
		Tt=Tt+B[i];
		cout<<"Enter the Arrival Time for"<<i<<"th process=	";
		cin>>A[i];
		if(A[i]>Time)
			Time=A[i];
	}
	cout<<"Max="<<max;
	int w=0,flag=0,t=0;
	i=1;
	while(t<Time)
	{
		if(A[i]<=t && B[i]!=0)
		{
			if(flag==0)
			{
				Wt[i]=Wt[i]+w;
				cout<<"Wt["<<i<<"]="<<Wt[i];
			}
			B[i]=B[i]-1;
			if(B[i]==0)
				S[i]='F';
			start[i]='T';
			t++;
			w=w+1;
			if(S[i]!='F')
			{
				j=1;flag=1;
				while(j<=n && flag!=0)
				{
					if(S[j]!='F' && B[i]>B[j] && A[j]<=t && i!=j )
					{
						flag=0;
						Wt[i]=Wt[i]-w;
						i=j;
					}
					else
					{
						flag=1;
					}
					j++;
				}
			}
			else
			{
				i++;
				j=1;
				while(A[j]<=t &&j<=n)
				{
					if(B[i]>B[j] && S[j]!='F')
					{
						flag=0;
						i=j;
					}
					j++;
				}
			}
		}
		else
			if(flag==0)
			i++;
	}


	cout<<"Printing remaining burst time";
	for(i=1;i<=n;i++)
		cout<<"B["<<i<<"]="<<B[i];
	cout<<"";

	while(w<Tt)
	{
		min=max+1;
		i=1;
		while(i<=n)
		{
			if(min>B[i] && S[i]=='T')
			{
				min=B[i];
				j=i;
			}
			i++;
		}
		i=j;
		if(w==Time && start[i]=='T')
		{
			w=w+B[i];
			S[i]='F';
		}
		else
		{
			Wt[i]=Wt[i]+w;
			w=w+B[i];
			S[i]='F';
		}
	}

cout<<"Weight info";

	for(i=1;i<=n;i++)
		cout<<"WT["<<i<<"]="<<Wt[i];
cout<<"after subtracting arrival time";
	for(i=1;i<=n;i++)
	{
		Wt[i]=Wt[i]-A[i];
		cout<<"WT["<<i<<"]="<<Wt[i];
	}
	//Calculating Average Weighting time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Average Weighting Time="<<Awt;



}

//Round Robin Algorithm
void cpuschedule::RoundRobin()
{

	int i,j,tq,k,B[10],Rrobin[10][10],count[10];
	int max=0;
	int m;
	Twt=0.0;
	for(i=1;i<=n;i++)
	{
		B[i]=Bu[i];
		cout<<"Burst time for process p"<<i<<"=	";
		cout<<B[i];
		if(max<B[i])
			max=B[i];
		Wt[i]=0;
	}
	cout<<"Enter the Time Quantum=";
	cin>>tq;
	//TO find the dimension of the Rrobin array
	m=max/tq+1;

	//initializing Rrobin array
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=m;j++)
		{
			Rrobin[i][j]=0;
		}
	}
	//placing value in the Rrobin array
	i=1;
	while(i<=n)
	{
		j=1;
		while(B[i]>0)
		{
			if(B[i]>=tq)
			{
				B[i]=B[i]-tq;
				Rrobin[i][j]=tq;
				j++;
			}
			else
			{
				Rrobin[i][j]=B[i];
				B[i]=0;
				j++;
			}
		}
		count[i]=j-1;
		i++;
	}

	cout<<"Display";
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=m;j++)
		{
			cout<<"Rr["<<i<<","<<j<<"]="<<Rrobin[i][j];
			cout<<"	";
		}
		cout<<"";
	}
	//calculating weighting time
	int x=1;
	i=1;
	while(x<=n)
	{
		for(int a=1;a<x;a++)
		{
			Wt[x]=Wt[x]+Rrobin[a][i];
		}
		i=1;
		int z=x;
		j=count[z];
		k=1;
		while(k<=j-1)
		{
			if(i==n+1)
			{
				i=1;
				k++;
			}
			else
			{
				if(i!=z)
				{
					Wt[z]=Wt[z]+Rrobin[i][k];
				}
				i++;
			}
		}
		x++;
	}
	for(i=1;i<=n;i++)
		cout<<"Weighting Time for process P"<<i<<"="<<Wt[i];

	//calculating Average Weighting Time
	for(i=1;i<=n;i++)
		Twt=Twt+Wt[i];
	Awt=Twt/n;
	cout<<"Total   Weighting Time="<<Twt;
	cout<<"Average Weighting Time="<<Awt<<"";
}


//Application file for cpu Scheduling
#include "cpuh.h"

void main()
{
	int ch,cho;
	cpuschedule c;
	do
	{
		cout<<" MENU";
		cout<<"1.Getting BurstTime";
		cout<<"2.FirstComeFirstServed";
		cout<<"3.ShortestJobFirst";
		cout<<"4.RoundRobin";
		cout<<"5.Priority";
		cout<<"6.EXIT";
		cout<<"Enter your choice";
		cin>>ch;
		switch(ch)
		{
		case 1:
			c.Getdata();
			break;
		case 2:
			cout<<"FIRST COME FIRST SERVED SCHEDULING";
			c.Fcfs();
			break;
		case 3:
			cout<<"SHORTEST JOB FIRST SCHEDULING";
			do
			{
				cout<<"1.SJF-Normel";
				cout<<"2.SJF-Preemptive";
				cout<<"3.SJF-NonPreemptive";
				cout<<"Enter your choice";
				cin>>cho;
				switch(cho)
				{
				case 1:
					c.Sjf();
					break;
				case 2:
					c.SjfP();
					break;
				case 3:
					c.SjfNp();
					break;
				}
			}while(cho<=3);
			break;
		case 4:
			cout<<"ROUND ROBIN SCHEDULING";
			c.RoundRobin();
			break;
		case 5:
			cout<<"PRIORITY SCHEDULING";
			c.Priority();
			break;
		case 6:
			break;
		}
	}while(ch<=5);
}

raptr_dflo 48 Posting Pro · Answer 4 · 2012-01-19T15:03:17+00:00

Any header file ( foo.h ) provides the declarations/prototypes for variables, functions, and classes (and because of how they're handled by the compiler, implementation of templated objects, but that's another story). I have no idea what specifically might be declared/prototyped in cpu.h . Or cpuh.h , since that's what you're including, twice.

But now that I look more closely, you've copied the code from various files into one block for us (or that's how it's been code-tagged for you). So it looks like cpuh.h is in your own project, and declares the cpuschedule class, and then the implementation .cpp file and main .cpp file both include it.

If you've copied all the code into a single file, then you no longer need to #include the header file (its code is already in your file). But that's bad programming practice. Keep the files separate as originally intended, and learn how to use your development environment to manage the files.

Dexxta27 14 Junior Poster in Training · Answer 5 · 2012-01-20T12:01:41+00:00

Just as said before, chpuh.h is the first file where you declare your functions. The second set of codes implements it and then the last one is your main() which actually uses it.
Also, I'm pretty sure you should have a default option in your case switch statements.

what is cpu.h? c++

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