Record.odt


Script started on 2019-03-07 08:48:35+0530
#]0;ramkaushik@ram-kaushik: ~/Documents/College/OS-Lab/Ex10##[01;32mramkaushik@ram-kaushik#[00m:#[01;34m~/Documents/College/OS-Lab/Ex10#[00m$ cat sample.c
#include<pthread.h> 
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int sum;
void *runner(void *param);
int main(int argc, char *argv[]) { 
  pthread_t tid;
  pthread_attr_t attr;
  if (argc != 2){
    fprintf(stderr,"usage: sample <integer value>\n");
    return -1;
  }
  if (atoi(argv[1]) < 0){
    fprintf(stderr,"%d must be >= 0 \n",atoi(argv[1]));
    return -1;
  }
  pthread_attr_init(&attr);
  pthread_create(&tid,&attr,runner,argv[1]);
  pthread_join(tid,NULL);
  printf("sum = %d\n",sum);
} 
void *runner(void *param) { 
  int i, upper = atoi(param);
  sum = 0;
  for (i = 1; i <= upper; i++)
    sum += i; 
  pthread_exit(0); 
}
#]0;ramkaushik@ram-kaushik: ~/Documents/College/OS-Lab/Ex10##[01;32mramkaushik@ram-kaushik#[00m:#[01;34m~/Documents/College/OS-Lab/Ex10#[00m$ ./sample 5
sum = 15
#]0;ramkaushik@ram-kaushik: ~/Documents/College/OS-Lab/Ex10##[01;32mramkaushik@ram-kaushik#[00m:#[01;34m~/Documents/College/OS-Lab/Ex10#[00m$ cat minmaxavg.c
#include<pthread.h> 
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int max, min, l;
float avg;
int list[10];
void *Max(void *param);
void *Min(void *param);
void *Avg(void *param);
int main(int argc, char *argv[]) { 
  pthread_t tid1, tid2, tid3;
  pthread_attr_t attr1, attr2, attr3;
  if (argc < 2) { 
    fprintf(stderr,"Usage: Enter list of integer values\n"); 
    return -1; 
  }
  for(int i = 1; i < argc; i++)
    list[i-1] = atoi(argv[i]);
  l = argc - 1;
  pthread_attr_init(&attr1);
  pthread_attr_init(&attr2);


  pthread_attr_init(&attr3); 
  pthread_create(&tid1,&attr1,Max, list);
  pthread_create(&tid2,&attr2,Min, list);
  pthread_create(&tid3,&attr3,Avg, list);
  pthread_join(tid1,NULL);
  pthread_join(tid2,NULL);
  pthread_join(tid3,NULL); 
  printf("Max, Min, Avg: %d, %d, %f\n",max,min,avg);
} 
void *Max(void *param){ 
  max = list[0];
  for(int i = 1; i < l; i++)
    if(max < list[i])
      max = list[i];
  pthread_exit(0);
}
void *Min(void *param){ 
  min = list[0];
  for(int i = 1; i < l; i++)
    if(min > list[i])
      min = list[i];
  pthread_exit(0);
} 
void *Avg(void *param){
  avg = 0;
  for(int i = 0; i < l; i++)
    avg += list[i];
  avg /= l;
  pthread_exit(0); 
} 
#]0;ramkaushik@ram-kaushik: ~/Documents/College/OS-Lab/Ex10##[01;32mramkaushik@ram-kaushik#[00m:#[01;34m~/Documents/College/OS-Lab/Ex10#[00m$ ./minmaxavg 10 30 40 20
Max, Min, Avg: 40, 10, 25.000000
#]0;ramkaushik@ram-kaushik: ~/Documents/College/OS-Lab/Ex10##[01;32mramkaushik@ram-kaushik#[00m:#[01;34m~/Documents/College/OS-Lab/Ex10#[00m$ exit
exit

Script done on 2019-03-07 08:49:16+0530