Priority Scheduling | Task Scheduler Linux

Priority Scheduling | Task Scheduler Linux

15:48

#include<stdio.h>

#include<unistd.h>

#include<stdlib.h>

#include<errno.h>

#include<string.h>

#include<sys/types.h>

struct Node{

   int p_id;

   int priority;

   int exe_time;

};

int main(){

   int i,j,no_of_processes;

   struct Node *Queue,temp;

   printf("\n\t---> Priority Scheduling <---\n\n");

   printf("Enter no. of Processes:");

   scanf("%d",&no_of_processes);

   Queue=malloc(no_of_processes);

   for(i=0;i<no_of_processes;i++){

      printf("Give Process#%d id :\n",i+1);

      scanf("%d",&Queue[i].p_id);

      printf("Give its Priority:\n");

      scanf("%d",&Queue[i].priority);

      printf("Give Execution Time (in secs.):\n");

      scanf("%d",&Queue[i].exe_time);

   } 

   for(i=0;i<no_of_processes;i++){

      for(j=0;j<no_of_processes-i-1;j++)

          if(Queue[j].priority>Queue[j+1].priority){

             temp=Queue[j];

             Queue[j]=Queue[j+1];

             Queue[j+1]=temp;

          }         

   }

   for(i=0;i<no_of_processes;i++){

      printf("\tPROCESS with Process ID#%d\n\n",Queue[i].p_id);

      printf("This process has Priority=%d and requires %d seconds for execution\n\n",Queue[i].priority,Queue[i].exe_time);

      printf("Execution in Progress\n\n");

      for(j=0;j<Queue[i].exe_time;j++){

          sleep(1);

          printf("*");         

      }

      printf("\n\nPROCESS FINISHED\n\n");

   }
   return 0;

}