int
main()
{
srandom((unsigned int) time(NULL));
test_lock.pad1 = test_lock.pad2 = 0x44;
S_INIT_LOCK(&test_lock.lock);
if (test_lock.pad1 != 0x44 || test_lock.pad2 != 0x44)
{
printf("S_LOCK_TEST: failed, declared datatype is wrong size\n");
return 1;
}
if (!S_LOCK_FREE(&test_lock.lock))
{
printf("S_LOCK_TEST: failed, lock not initialized\n");
return 1;
}
S_LOCK(&test_lock.lock);
if (test_lock.pad1 != 0x44 || test_lock.pad2 != 0x44)
{
printf("S_LOCK_TEST: failed, declared datatype is wrong size\n");
return 1;
}
if (S_LOCK_FREE(&test_lock.lock))
{
printf("S_LOCK_TEST: failed, lock not locked\n");
return 1;
}
S_UNLOCK(&test_lock.lock);
if (test_lock.pad1 != 0x44 || test_lock.pad2 != 0x44)
{
printf("S_LOCK_TEST: failed, declared datatype is wrong size\n");
return 1;
}
if (!S_LOCK_FREE(&test_lock.lock))
{
printf("S_LOCK_TEST: failed, lock not unlocked\n");
return 1;
}
S_LOCK(&test_lock.lock);
if (test_lock.pad1 != 0x44 || test_lock.pad2 != 0x44)
{
printf("S_LOCK_TEST: failed, declared datatype is wrong size\n");
return 1;
}
if (S_LOCK_FREE(&test_lock.lock))
{
printf("S_LOCK_TEST: failed, lock not re-locked\n");
return 1;
}
printf("S_LOCK_TEST: this will print %d stars and then\n", NUM_DELAYS);
printf(" exit with a 'stuck spinlock' message\n");
printf(" if S_LOCK() and TAS() are working.\n");
fflush(stdout);
s_lock(&test_lock.lock, __FILE__, __LINE__);
printf("S_LOCK_TEST: failed, lock not locked\n");
return 1;
}
void
pg_spinlock_barrier(void)
{
S_LOCK(&dummy_spinlock);
S_UNLOCK(&dummy_spinlock);
}