Subversion Repositories HelenOS

(root)/trunk/kernel/test/synch/semaphore2.c @ 2493 – Rev 3069 → 3838



{
    uint32_t rc;
 
    spinlock_lock(&sem_lock);  
    rc = seed % max;
    seed = (((seed << 2) ^ (seed >> 2)) * 487) + rc;
    spinlock_unlock(&sem_lock);
    return rc;
}
 
static void consumer(void *arg)

Rev 3069	Rev 3838
Line 51...	Line 51...
51	{	51	{
52	uint32_t rc;	52	uint32_t rc;
53		53
54	spinlock_lock(&sem_lock);	54	spinlock_lock(&sem_lock);
55	rc = seed % max;	55	rc = seed % max;
56	seed = (((seed<<2) ^ (seed>>2)) * 487) + rc;	56	seed = (((seed << 2) ^ (seed >> 2)) * 487) + rc;
57	spinlock_unlock(&sem_lock);	57	spinlock_unlock(&sem_lock);
58	return rc;	58	return rc;
59	}	59	}
60		60
61	static void consumer(void *arg)	61	static void consumer(void *arg)