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#ifdef OF_HAVE_ATOMIC_OPS
# import "atomic.h"
#endif
#ifdef OF_HAVE_THREADS
# import "mutex.h"
#endif
typedef struct of_block_byref_t of_block_byref_t;
struct of_block_byref_t {
Class isa;
of_block_byref_t *forwarding;
int flags;
int size;
void (*byref_keep)(void *dest, void *src);
void (*byref_dispose)(void *);
};
enum {
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#ifdef OF_HAVE_ATOMIC_OPS
# import "atomic.h"
#endif
#ifdef OF_HAVE_THREADS
# import "mutex.h"
#endif
struct block {
Class isa;
int flags;
int reserved;
void (*invoke)(void *block, ...);
struct {
unsigned long reserved;
unsigned long size;
void (*_Nullable copy_helper)(void *dest, void *src);
void (*_Nullable dispose_helper)(void *src);
const char *signature;
} *descriptor;
};
struct byref {
Class isa;
struct byref *forwarding;
int flags;
int size;
void (*byref_keep)(void *dest, void *src);
void (*byref_dispose)(void *);
};
enum {
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static struct objc_class _NSConcreteStackBlock_metaclass = {
Nil, Nil, "OFStackBlock", 8, OBJC_CLASS_INFO_METACLASS,
sizeof(_NSConcreteStackBlock_metaclass), NULL, NULL
};
struct objc_class _NSConcreteStackBlock = {
&_NSConcreteStackBlock_metaclass, (Class)(void *)"OFBlock",
"OFStackBlock", 8, OBJC_CLASS_INFO_CLASS, sizeof(of_block_literal_t),
NULL, NULL
};
static struct objc_class _NSConcreteGlobalBlock_metaclass = {
Nil, Nil, "OFGlobalBlock", 8, OBJC_CLASS_INFO_METACLASS,
sizeof(_NSConcreteGlobalBlock_metaclass), NULL, NULL
};
struct objc_class _NSConcreteGlobalBlock = {
&_NSConcreteGlobalBlock_metaclass, (Class)(void *)"OFBlock",
"OFGlobalBlock", 8, OBJC_CLASS_INFO_CLASS, sizeof(of_block_literal_t),
NULL, NULL
};
static struct objc_class _NSConcreteMallocBlock_metaclass = {
Nil, Nil, "OFMallocBlock", 8, OBJC_CLASS_INFO_METACLASS,
sizeof(_NSConcreteMallocBlock_metaclass), NULL, NULL
};
struct objc_class _NSConcreteMallocBlock = {
&_NSConcreteMallocBlock_metaclass, (Class)(void *)"OFBlock",
"OFMallocBlock", 8, OBJC_CLASS_INFO_CLASS, sizeof(of_block_literal_t),
NULL, NULL
};
static struct {
unsigned long unknown;
struct objc_selector *selectorRefs;
uint16_t classDefsCount, categoryDefsCount;
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static struct objc_class _NSConcreteStackBlock_metaclass = {
Nil, Nil, "OFStackBlock", 8, OBJC_CLASS_INFO_METACLASS,
sizeof(_NSConcreteStackBlock_metaclass), NULL, NULL
};
struct objc_class _NSConcreteStackBlock = {
&_NSConcreteStackBlock_metaclass, (Class)(void *)"OFBlock",
"OFStackBlock", 8, OBJC_CLASS_INFO_CLASS, sizeof(struct block),
NULL, NULL
};
static struct objc_class _NSConcreteGlobalBlock_metaclass = {
Nil, Nil, "OFGlobalBlock", 8, OBJC_CLASS_INFO_METACLASS,
sizeof(_NSConcreteGlobalBlock_metaclass), NULL, NULL
};
struct objc_class _NSConcreteGlobalBlock = {
&_NSConcreteGlobalBlock_metaclass, (Class)(void *)"OFBlock",
"OFGlobalBlock", 8, OBJC_CLASS_INFO_CLASS, sizeof(struct block),
NULL, NULL
};
static struct objc_class _NSConcreteMallocBlock_metaclass = {
Nil, Nil, "OFMallocBlock", 8, OBJC_CLASS_INFO_METACLASS,
sizeof(_NSConcreteMallocBlock_metaclass), NULL, NULL
};
struct objc_class _NSConcreteMallocBlock = {
&_NSConcreteMallocBlock_metaclass, (Class)(void *)"OFBlock",
"OFMallocBlock", 8, OBJC_CLASS_INFO_CLASS, sizeof(struct block),
NULL, NULL
};
static struct {
unsigned long unknown;
struct objc_selector *selectorRefs;
uint16_t classDefsCount, categoryDefsCount;
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if ([(id)block isMemberOfClass: (Class)&_NSConcreteMallocBlock]) {
#ifdef OF_HAVE_ATOMIC_OPS
of_atomic_int_inc(&block->flags);
#else
unsigned hash = SPINLOCK_HASH(block);
OF_ENSURE(of_spinlock_lock(&blockSpinlocks[hash]) == 0);
block->flags++;
OF_ENSURE(of_spinlock_unlock(&blockSpinlocks[hash]) == 0);
#endif
}
return block;
}
void
_Block_release(const void *block_)
{
of_block_literal_t *block = (of_block_literal_t *)block_;
if (object_getClass((id)block) != (Class)&_NSConcreteMallocBlock)
return;
#ifdef OF_HAVE_ATOMIC_OPS
if ((of_atomic_int_dec(&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);
OF_ENSURE(of_spinlock_lock(&blockSpinlocks[hash]) == 0);
if ((--block->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
OF_ENSURE(of_spinlock_unlock(&blockSpinlocks[hash]) == 0);
if (block->flags & OF_BLOCK_HAS_COPY_DISPOSE)
block->descriptor->dispose_helper(block);
free(block);
return;
}
OF_ENSURE(of_spinlock_unlock(&blockSpinlocks[hash]) == 0);
#endif
}
void
_Block_object_assign(void *dst_, const void *src_, const int flags_)
{
int flags = flags_ & (OF_BLOCK_FIELD_IS_BLOCK |
OF_BLOCK_FIELD_IS_OBJECT | OF_BLOCK_FIELD_IS_BYREF);
if (src_ == NULL)
return;
switch (flags) {
case OF_BLOCK_FIELD_IS_BLOCK:
*(of_block_literal_t **)dst_ = _Block_copy(src_);
break;
case OF_BLOCK_FIELD_IS_OBJECT:
if (!(flags_ & OF_BLOCK_BYREF_CALLER))
*(id *)dst_ = [(id)src_ retain];
break;
case OF_BLOCK_FIELD_IS_BYREF:;
of_block_byref_t *src = (of_block_byref_t *)src_;
of_block_byref_t **dst = (of_block_byref_t **)dst_;
src = src->forwarding;
if ((src->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
if ((*dst = malloc(src->size)) == NULL) {
alloc_failed_exception.isa =
[OFAllocFailedException class];
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if ([(id)block isMemberOfClass: (Class)&_NSConcreteMallocBlock]) {
#ifdef OF_HAVE_ATOMIC_OPS
of_atomic_int_inc(&block->flags);
#else
unsigned hash = SPINLOCK_HASH(block);
OF_ENSURE(OFSpinlockLock(&blockSpinlocks[hash]) == 0);
block->flags++;
OF_ENSURE(OFSpinlockUnlock(&blockSpinlocks[hash]) == 0);
#endif
}
return block;
}
void
_Block_release(const void *block_)
{
struct block *block = (struct block *)block_;
if (object_getClass((id)block) != (Class)&_NSConcreteMallocBlock)
return;
#ifdef OF_HAVE_ATOMIC_OPS
if ((of_atomic_int_dec(&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);
OF_ENSURE(OFSpinlockLock(&blockSpinlocks[hash]) == 0);
if ((--block->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
OF_ENSURE(OFSpinlockUnlock(&blockSpinlocks[hash]) == 0);
if (block->flags & OF_BLOCK_HAS_COPY_DISPOSE)
block->descriptor->dispose_helper(block);
free(block);
return;
}
OF_ENSURE(OFSpinlockUnlock(&blockSpinlocks[hash]) == 0);
#endif
}
void
_Block_object_assign(void *dst_, const void *src_, const int flags_)
{
int flags = flags_ & (OF_BLOCK_FIELD_IS_BLOCK |
OF_BLOCK_FIELD_IS_OBJECT | OF_BLOCK_FIELD_IS_BYREF);
if (src_ == NULL)
return;
switch (flags) {
case OF_BLOCK_FIELD_IS_BLOCK:
*(struct block **)dst_ = _Block_copy(src_);
break;
case OF_BLOCK_FIELD_IS_OBJECT:
if (!(flags_ & OF_BLOCK_BYREF_CALLER))
*(id *)dst_ = [(id)src_ retain];
break;
case OF_BLOCK_FIELD_IS_BYREF:;
struct byref *src = (struct byref *)src_;
struct byref **dst = (struct byref **)dst_;
src = src->forwarding;
if ((src->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
if ((*dst = malloc(src->size)) == NULL) {
alloc_failed_exception.isa =
[OFAllocFailedException class];
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