ObjFW  Check-in [c50d483262]

Overview
Comment:It can never happen that we don't have threads and atomic ops.
If we don't have threads, everything is atomic.
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SHA3-256: c50d48326249765d6600aa644ea6015af75beec0b4e4cf20c0624ecae320d90d
User & Date: js on 2011-01-14 11:01:27
Other Links: manifest | tags
Context
2011-01-14
12:22
Add OFURL class. check-in: 164c76c0cf user: js tags: trunk
11:01
It can never happen that we don't have threads and atomic ops.
If we don't have threads, everything is atomic. check-in: c50d483262 user: js tags: trunk
2011-01-13
14:24
Update .xcodeproj. check-in: f38b4705e3 user: js tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified src/OFBlock.m from [3f030b240f] to [f29296dab5].

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		return copy;
	}

	if (block->isa == (Class)&_NSConcreteMallocBlock) {
#if defined(OF_ATOMIC_OPS)
		of_atomic_inc_int(&block->flags);
#else
# ifdef OF_THREADS
		unsigned hash = SPINLOCK_HASH(block);

		assert(of_spinlock_lock(&spinlocks[hash]));
# endif

		block->flags++;

# ifdef OF_THREADS
		assert(of_spinlock_unlock(&spinlocks[hash]));
# endif
#endif
	}

	return block;
}

void








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		return copy;
	}

	if (block->isa == (Class)&_NSConcreteMallocBlock) {
#if defined(OF_ATOMIC_OPS)
		of_atomic_inc_int(&block->flags);
#else

		unsigned hash = SPINLOCK_HASH(block);

		assert(of_spinlock_lock(&spinlocks[hash]));


		block->flags++;


		assert(of_spinlock_unlock(&spinlocks[hash]));

#endif
	}

	return block;
}

void
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	if ((of_atomic_dec_int(&block->flags) & OF_BLOCK_REFCOUNT_MASK) == 0) {
		if (block->flags & OF_BLOCK_HAS_COPY_DISPOSE)
			block->descriptor->dispose_helper(block);

		free(block);
	}
#else
# ifdef OF_THREADS
	unsigned hash = SPINLOCK_HASH(block);

	assert(of_spinlock_lock(&spinlocks[hash]));
# endif

	if ((--block->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
# ifdef OF_THREADS
		assert(of_spinlock_unlock(&spinlocks[hash]));
# endif

		if (block->flags & OF_BLOCK_HAS_COPY_DISPOSE)
			block->descriptor->dispose_helper(block);

		free(block);
	}

# ifdef OF_THREADS
	assert(of_spinlock_unlock(&spinlocks[hash]));
# endif
#endif
}

void
_Block_object_assign(void *dst_, const void *src_, const int flags_)
{
	int flags = flags_ & (OF_BLOCK_FIELD_IS_BLOCK |








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	if ((of_atomic_dec_int(&block->flags) & OF_BLOCK_REFCOUNT_MASK) == 0) {
		if (block->flags & OF_BLOCK_HAS_COPY_DISPOSE)
			block->descriptor->dispose_helper(block);

		free(block);
	}
#else

	unsigned hash = SPINLOCK_HASH(block);

	assert(of_spinlock_lock(&spinlocks[hash]));


	if ((--block->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {

		assert(of_spinlock_unlock(&spinlocks[hash]));


		if (block->flags & OF_BLOCK_HAS_COPY_DISPOSE)
			block->descriptor->dispose_helper(block);

		free(block);
	}


	assert(of_spinlock_unlock(&spinlocks[hash]));

#endif
}

void
_Block_object_assign(void *dst_, const void *src_, const int flags_)
{
	int flags = flags_ & (OF_BLOCK_FIELD_IS_BLOCK |
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		@throw [OFInitializationFailedException newWithClass: self];
	memcpy(&_NSConcreteMallocBlock, tmp, sizeof(_NSConcreteMallocBlock));
	free(tmp);
	objc_registerClassPair((Class)&_NSConcreteMallocBlock);
}
#endif

#if !defined(OF_ATOMIC_OPS) && defined(OF_THREADS)
+ (void)initialize
{
	size_t i;

	for (i = 0; i < NUM_SPINLOCKS; i++)
		if (!of_spinlock_new(&spinlocks[i]))
			@throw [OFInitializationFailedException








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		@throw [OFInitializationFailedException newWithClass: self];
	memcpy(&_NSConcreteMallocBlock, tmp, sizeof(_NSConcreteMallocBlock));
	free(tmp);
	objc_registerClassPair((Class)&_NSConcreteMallocBlock);
}
#endif

#if !defined(OF_ATOMIC_OPS)
+ (void)initialize
{
	size_t i;

	for (i = 0; i < NUM_SPINLOCKS; i++)
		if (!of_spinlock_new(&spinlocks[i]))
			@throw [OFInitializationFailedException
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Modified src/OFObject.m from [07b4e58e79] to [a02b47cd7d].

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# define class_getSuperclass class_get_super_class
#endif

struct pre_ivar {
	void	      **memchunks;
	size_t	      memchunks_size;
	int32_t	      retain_count;
#if !defined(OF_ATOMIC_OPS) && defined(OF_THREADS)
	of_spinlock_t retain_spinlock;
#endif
};

/* Hopefully no arch needs more than 16 bytes padding */
#define PRE_IVAR_ALIGN ((sizeof(struct pre_ivar) + 15) & ~15)
#define PRE_IVAR ((struct pre_ivar*)((char*)self - PRE_IVAR_ALIGN))








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# define class_getSuperclass class_get_super_class
#endif

struct pre_ivar {
	void	      **memchunks;
	size_t	      memchunks_size;
	int32_t	      retain_count;
#if !defined(OF_ATOMIC_OPS)
	of_spinlock_t retain_spinlock;
#endif
};

/* Hopefully no arch needs more than 16 bytes padding */
#define PRE_IVAR_ALIGN ((sizeof(struct pre_ivar) + 15) & ~15)
#define PRE_IVAR ((struct pre_ivar*)((char*)self - PRE_IVAR_ALIGN))
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		@throw (OFAllocFailedException*)&alloc_failed_exception;
	}

	((struct pre_ivar*)instance)->memchunks = NULL;
	((struct pre_ivar*)instance)->memchunks_size = 0;
	((struct pre_ivar*)instance)->retain_count = 1;

#if !defined(OF_ATOMIC_OPS) && defined(OF_THREADS)
	if (!of_spinlock_new(&((struct pre_ivar*)instance)->retain_spinlock)) {
		free(instance);
		@throw [OFInitializationFailedException newWithClass: self];
	}
#endif

	instance = (OFObject*)((char*)instance + PRE_IVAR_ALIGN);








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		@throw (OFAllocFailedException*)&alloc_failed_exception;
	}

	((struct pre_ivar*)instance)->memchunks = NULL;
	((struct pre_ivar*)instance)->memchunks_size = 0;
	((struct pre_ivar*)instance)->retain_count = 1;

#if !defined(OF_ATOMIC_OPS)
	if (!of_spinlock_new(&((struct pre_ivar*)instance)->retain_spinlock)) {
		free(instance);
		@throw [OFInitializationFailedException newWithClass: self];
	}
#endif

	instance = (OFObject*)((char*)instance + PRE_IVAR_ALIGN);
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						      pointer: ptr];
}

- retain
{
#if defined(OF_ATOMIC_OPS)
	of_atomic_inc_32(&PRE_IVAR->retain_count);
#elif defined(OF_THREADS)
	assert(of_spinlock_lock(&PRE_IVAR->retain_spinlock));
	PRE_IVAR->retain_count++;
	assert(of_spinlock_unlock(&PRE_IVAR->retain_spinlock));
#else
	PRE_IVAR->retain_count++;
#endif

	return self;
}

- (size_t)retainCount
{
	assert(PRE_IVAR->retain_count >= 0);
	return (size_t)PRE_IVAR->retain_count;
}

- (void)release
{
#if defined(OF_ATOMIC_OPS)
	if (of_atomic_dec_32(&PRE_IVAR->retain_count) <= 0)
		[self dealloc];
#elif defined(OF_THREADS)
	size_t c;

	assert(of_spinlock_lock(&PRE_IVAR->retain_spinlock));
	c = --PRE_IVAR->retain_count;
	assert(of_spinlock_unlock(&PRE_IVAR->retain_spinlock));

	if (!c)
		[self dealloc];
#else
	if (--PRE_IVAR->retain_count <= 0)
		[self dealloc];
#endif
}

- autorelease
{
	/*
	 * Cache OFAutoreleasePool since class lookups are expensive with the








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						      pointer: ptr];
}

- retain
{
#if defined(OF_ATOMIC_OPS)
	of_atomic_inc_32(&PRE_IVAR->retain_count);
#else
	assert(of_spinlock_lock(&PRE_IVAR->retain_spinlock));
	PRE_IVAR->retain_count++;
	assert(of_spinlock_unlock(&PRE_IVAR->retain_spinlock));


#endif

	return self;
}

- (size_t)retainCount
{
	assert(PRE_IVAR->retain_count >= 0);
	return (size_t)PRE_IVAR->retain_count;
}

- (void)release
{
#if defined(OF_ATOMIC_OPS)
	if (of_atomic_dec_32(&PRE_IVAR->retain_count) <= 0)
		[self dealloc];
#else
	size_t c;

	assert(of_spinlock_lock(&PRE_IVAR->retain_spinlock));
	c = --PRE_IVAR->retain_count;
	assert(of_spinlock_unlock(&PRE_IVAR->retain_spinlock));

	if (!c)
		[self dealloc];



#endif
}

- autorelease
{
	/*
	 * Cache OFAutoreleasePool since class lookups are expensive with the
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