https://youtu.be/ozMB7xeGBwY [Realisation short film]
This blog shows the updates and new information about the things in real life. It also tells the videos in klv productions.
Friday, 18 September 2015
Wednesday, 16 September 2015
Monday, 31 August 2015
os banker's algorithm for deadlock avoidence
import java.util.*;
class Banker
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
int r,p,n,count=0,i,j,flag,safe;
System.out.println("enter no of resources");
r=s.nextInt();
System.out.println("enter no of processes");
p=s.nextInt();
int running[]=new int[p];
for(i=0;i<p;i++)
{
running[i]=1;
count++;
}
int totrs[]=new int[r];
System.out.println("enter system resources");
for(i=0;i<r;i++)
totrs[i]=s.nextInt();
int occrs[][]=new int[p][r];
System.out.println("enter occupied resources");
for(i=0;i<p;i++)
{
for(j=0;j<r;j++)
{
occrs[i][j]=s.nextInt();
}
}
int add[]=new int[r];
int maxrs[][]=new int[p][r];
System.out.println("enter maximum rq resources");
for(i=0;i<p;i++)
{
for(j=0;j<r;j++)
{
maxrs[i][j]=s.nextInt();
}
}
System.out.println("adding resource using by processes");
for(i=0;i<p;i++)
{
for(j=0;j<r;j++)
{
add[j]+=occrs[i][j];
}
}
for(i=0;i<r;i++)
System.out.println(add[i]);
int avl[]=new int[r];
for(i=0;i<r;i++)
avl[i]=totrs[i]-add[i];
System.out.println("available resources");
for(i=0;i<r;i++)
System.out.println(avl[i]);
while(count!=0)
{
safe=0;
for(i=0;i<p;i++)
{
if(running[i]==1)
{
flag=1;
for(j=0;j<r;j++)
{
if(maxrs[i][j]-occrs[i][j]>avl[j])
{
flag=0;
break;
}
}
if(flag==1)
{
System.out.println(i+1+"is executing");
running[i]=0;
count--;
for(j=0;j<r;j++)
avl[j]+=occrs[i][j];
safe=1;
}
}
}
if(safe==1)
{
System.out.println("the process is in safe state");
System.out.println("the avl resource is");
for(j=0;j<r;j++)
System.out.println(avl[j]);
}
else
{
System.out.println("the process is in unsafe");
break;
}
}
}
}
class Banker
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
int r,p,n,count=0,i,j,flag,safe;
System.out.println("enter no of resources");
r=s.nextInt();
System.out.println("enter no of processes");
p=s.nextInt();
int running[]=new int[p];
for(i=0;i<p;i++)
{
running[i]=1;
count++;
}
int totrs[]=new int[r];
System.out.println("enter system resources");
for(i=0;i<r;i++)
totrs[i]=s.nextInt();
int occrs[][]=new int[p][r];
System.out.println("enter occupied resources");
for(i=0;i<p;i++)
{
for(j=0;j<r;j++)
{
occrs[i][j]=s.nextInt();
}
}
int add[]=new int[r];
int maxrs[][]=new int[p][r];
System.out.println("enter maximum rq resources");
for(i=0;i<p;i++)
{
for(j=0;j<r;j++)
{
maxrs[i][j]=s.nextInt();
}
}
System.out.println("adding resource using by processes");
for(i=0;i<p;i++)
{
for(j=0;j<r;j++)
{
add[j]+=occrs[i][j];
}
}
for(i=0;i<r;i++)
System.out.println(add[i]);
int avl[]=new int[r];
for(i=0;i<r;i++)
avl[i]=totrs[i]-add[i];
System.out.println("available resources");
for(i=0;i<r;i++)
System.out.println(avl[i]);
while(count!=0)
{
safe=0;
for(i=0;i<p;i++)
{
if(running[i]==1)
{
flag=1;
for(j=0;j<r;j++)
{
if(maxrs[i][j]-occrs[i][j]>avl[j])
{
flag=0;
break;
}
}
if(flag==1)
{
System.out.println(i+1+"is executing");
running[i]=0;
count--;
for(j=0;j<r;j++)
avl[j]+=occrs[i][j];
safe=1;
}
}
}
if(safe==1)
{
System.out.println("the process is in safe state");
System.out.println("the avl resource is");
for(j=0;j<r;j++)
System.out.println(avl[j]);
}
else
{
System.out.println("the process is in unsafe");
break;
}
}
}
}
Sunday, 30 August 2015
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