Programming

#include<stdio.h>
#include<pthread.h>
 
pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
struct arg_struct {
  int arg1;
  int deposit;
};
 
void *print_the_arguments(void *arguments)
{
  pthread_mutex_unlock(&lock);
  struct arg_struct *args = arguments;
  int j;
  j = args -> deposit;
  printf("%d\n", args -> arg1 + j);
  pthread_exit(NULL);
  return NULL;
  pthread_mutex_lock(&lock);
}
 
int main()
{
  pthread_t some_thread;
  struct arg_struct args;
  args.arg1 = 5;

  args.deposit = 3;

  //pthread_mutex_unlock(&lock);
  pthread_create(&some_thread, NULL, &print_the_arguments, (void *)&args)   != 0;
  //pthread_mutex_lock(&lock);

  args.deposit=10;
  pthread_create(&some_thread, NULL, &print_the_arguments, (void *)&args)   != 0; 

  return pthread_join(some_thread, NULL);
}

#include <stdio.h>
#include <pthread.h>

pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;

struct arg_struct {
  int deposit;
};

int total = 0;

void *print_the_arguments(void *arguments)
{

  struct arg_struct *args = (struct arg_struct *)arguments;

  pthread_mutex_lock(&lock);
  total = total + args -> deposit;
  printf("%d\n", total);
  pthread_mutex_unlock(&lock);

  pthread_exit(NULL);

}

int main()
{
  pthread_t some_thread1;
  pthread_t some_thread2;

  struct arg_struct args1;
  struct arg_struct args2;

  total = 5;

  args1.deposit = 3;
  pthread_create(&some_thread1, NULL, print_the_arguments, (void *)&args1);

  args2.deposit = 10;
  pthread_create(&some_thread2, NULL, print_the_arguments, (void *)&args2);

  pthread_join(some_thread1, NULL);
  pthread_join(some_thread2, NULL);
  pthread_exit(NULL);
}