117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
-
+
+
+
+
|
}
((struct pre_ivar*)instance)->memchunks = NULL;
((struct pre_ivar*)instance)->memchunks_size = 0;
((struct pre_ivar*)instance)->retain_count = 1;
#ifndef OF_ATOMIC_OPS
of_spinlock_new(&((struct pre_ivar*)instance)->retain_spinlock);
if (!of_spinlock_new(&((struct pre_ivar*)instance)->retain_spinlock)) {
free(instance);
@throw [OFInitializationFailedException newWithClass: self];
}
#endif
instance = (OFObject*)((char*)instance + PRE_IVAR_ALIGN);
memset(instance, 0, isize);
instance->isa = self;
return instance;
|
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
|
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
|
-
+
-
+
-
+
-
+
|
}
- retain
{
#ifdef OF_ATOMIC_OPS
of_atomic_inc32(&PRE_IVAR->retain_count);
#else
of_spinlock_lock(&PRE_IVAR->retain_spinlock);
assert(of_spinlock_lock(&PRE_IVAR->retain_spinlock));
PRE_IVAR->retain_count++;
of_spinlock_unlock(&PRE_IVAR->retain_spinlock);
assert(of_spinlock_unlock(&PRE_IVAR->retain_spinlock));
#endif
return self;
}
- (int32_t)retainCount
{
return PRE_IVAR->retain_count;
}
- (void)release
{
#ifdef OF_ATOMIC_OPS
if (!of_atomic_dec32(&PRE_IVAR->retain_count))
[self dealloc];
#else
int32_t c;
of_spinlock_lock(&PRE_IVAR->retain_spinlock);
assert(of_spinlock_lock(&PRE_IVAR->retain_spinlock));
c = --PRE_IVAR->retain_count;
of_spinlock_unlock(&PRE_IVAR->retain_spinlock);
assert(of_spinlock_unlock(&PRE_IVAR->retain_spinlock));
if (!c)
[self dealloc];
#endif
}
- autorelease
|