• Write a program with one thread function, define an array with 5 elements as a global variable [ use the code below ]

• Call the thread 2 times
• First for incrementing the array elements by 2.
• Second for incrementing the array elements by 3.
• Give a "sleep(2)" in the for loop of the thread function to model some process happening in between.
• Check if you are getting an expected output of incremented array elements.

Identify the critical section

Avoid the critical section using a mutex

Write a tutorial explaining the code

#include

#include

#include

pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER;

int arr[5];

void *incr(int n) {

// Complete the code here

}

int main() {

pthread_t t1, t2;

int i;

for(i=0;i<5;i++)

{

arr[i]=1;

}

pthread_create(); //Complete thread creation to pass the value to be incremented in thread 1

pthread_create(); //Complete thread creation to pass the value to be incremented in thread 2

pthread_join(t1,NULL);

pthread_join(t2,NULL);

exit(0);

}