Consider the following code and answer the following questions

Assume a process will be successfully created. What would be the value of x and y at (A) & (B) ? Justify your answer.

Can someone help me on this operating system problems ?

#include

int x, y ; /* a global variable */

int main() {

int pid;

pthread_t tid ;

pthread_attr_t attr ;

x = 16; y =16;

pid = fork();

if (pid == 0) {

pthread_attr_init(&attr);

pthread_creat(&tid,&attr,runner, NULL);

pthrad_join(tid,NULL);

printf("x is %d, y is%d ", x , y); /* (A) */

}

else if (pid >0) { wait(NULL);

printf("x is %d,y is %d ", x, y); /* (B) */

}

} /* end of main */

void *runner(void *param) {

y=y*2;

x=x-y; Pthread_exit(0) ;

}