#include<stdio.h>
#include<pthread.h>
#include <unistd.h>
pthread_spinlock_t lock;
void *threadfun1(void *arg)
{
printf("thread 1 started\n");
pthread_spin_lock(&lock);
sleep(4);
printf("thread1 acquired lock\n");
pthread_spin_unlock(&lock);
printf("thread 1 released lock object\n");
return NULL;
}
void *threadfun2(void *arg)
{
sleep(1);
printf("thread 2 started \n");
pthread_spin_unlock(&lock);
pthread_spin_lock(&lock);
printf("thread 2 acquired lock\n");
pthread_spin_unlock(&lock);
printf("thread 2 release lock object\n");
return NULL;
}
int main()
{
pthread_t t1, t2;
void *res;
pthread_create(&t1,NULL,threadfun1,NULL);
pthread_create(&t2,NULL,threadfun2,NULL);
pthread_join(t1, &res);
pthread_join(t2, &res);
return 0;
}
