#ifndef __DISPATCH_OBJECT_INTERNAL__
#define __DISPATCH_OBJECT_INTERNAL__
#if OS_OBJECT_USE_OBJC
#define DISPATCH_DECL_INTERNAL_SUBCLASS(name, super) \
OS_OBJECT_DECL_SUBCLASS(name, super)
#define DISPATCH_DECL_INTERNAL(name) \
DISPATCH_DECL_INTERNAL_SUBCLASS(name, dispatch_object)
#define DISPATCH_DECL_SUBCLASS_INTERFACE(name, super) \
_OS_OBJECT_DECL_SUBCLASS_INTERFACE(name, super)
#else
#define DISPATCH_DECL_INTERNAL_SUBCLASS(name, super) DISPATCH_DECL(name)
#define DISPATCH_DECL_INTERNAL(name) DISPATCH_DECL(name)
#define DISPATCH_DECL_SUBCLASS_INTERFACE(name, super)
#endif // OS_OBJECT_USE_OBJC
#if USE_OBJC
#define DISPATCH_CLASS(name) OS_OBJECT_CLASS(dispatch_##name)
#define DISPATCH_VTABLE_SUBCLASS_INSTANCE(name, super, ...) \
__attribute__((section("__DATA,__objc_data"), used)) \
static const struct { \
DISPATCH_VTABLE_HEADER(super); \
} DISPATCH_CONCAT(_,DISPATCH_CLASS(name##_vtable)) = { \
__VA_ARGS__ \
}
#else
#define DISPATCH_VTABLE_SUBCLASS_INSTANCE(name, super, ...) \
DISPATCH_CONST_STRUCT_INSTANCE(dispatch_##super##_vtable_s, \
_dispatch_##name##_vtable, \
._os_obj_xref_dispose = _dispatch_xref_dispose, \
._os_obj_dispose = _dispatch_dispose, \
__VA_ARGS__)
#endif // USE_OBJC
#define DISPATCH_SUBCLASS_DECL(name, super) \
DISPATCH_DECL_SUBCLASS_INTERFACE(dispatch_##name, super) \
struct dispatch_##name##_s; \
extern DISPATCH_CONST_STRUCT_DECL(dispatch_##name##_vtable_s, \
_dispatch_##name##_vtable, \
{ \
_OS_OBJECT_CLASS_HEADER(); \
DISPATCH_VTABLE_HEADER(name); \
})
#define DISPATCH_CLASS_DECL(name) DISPATCH_SUBCLASS_DECL(name, dispatch_object)
#define DISPATCH_INTERNAL_SUBCLASS_DECL(name, super) \
DISPATCH_DECL_INTERNAL_SUBCLASS(dispatch_##name, dispatch_##super); \
DISPATCH_DECL_SUBCLASS_INTERFACE(dispatch_##name, dispatch_##super) \
extern DISPATCH_CONST_STRUCT_DECL(dispatch_##super##_vtable_s, \
_dispatch_##name##_vtable)
#define DISPATCH_VTABLE_INSTANCE(name, ...) \
DISPATCH_VTABLE_SUBCLASS_INSTANCE(name, name, __VA_ARGS__)
#define DISPATCH_VTABLE(name) &_dispatch_##name##_vtable
#if !TARGET_OS_WIN32
#define DISPATCH_VTABLE_HEADER(x) \
unsigned long const do_type; \
const char *const do_kind; \
size_t (*const do_debug)(struct dispatch_##x##_s *, char *, size_t); \
void (*const do_invoke)(struct dispatch_##x##_s *); \
unsigned long (*const do_probe)(struct dispatch_##x##_s *); \
void (*const do_dispose)(struct dispatch_##x##_s *);
#else
#define DISPATCH_VTABLE_HEADER(x) \
unsigned long do_type; \
const char *do_kind; \
size_t (*do_debug)(struct dispatch_##x##_s *, char *, size_t); \
void (*do_invoke)(struct dispatch_##x##_s *); \
unsigned long (*do_probe)(struct dispatch_##x##_s *); \
void (*do_dispose)(struct dispatch_##x##_s *);
#endif
#define dx_type(x) (x)->do_vtable->do_type
#define dx_metatype(x) ((x)->do_vtable->do_type & _DISPATCH_META_TYPE_MASK)
#define dx_kind(x) (x)->do_vtable->do_kind
#define dx_debug(x, y, z) (x)->do_vtable->do_debug((x), (y), (z))
#define dx_dispose(x) (x)->do_vtable->do_dispose(x)
#define dx_invoke(x) (x)->do_vtable->do_invoke(x)
#define dx_probe(x) (x)->do_vtable->do_probe(x)
#define DISPATCH_STRUCT_HEADER(x) \
_OS_OBJECT_HEADER( \
const struct dispatch_##x##_vtable_s *do_vtable, \
do_ref_cnt, \
do_xref_cnt); \
struct dispatch_##x##_s *volatile do_next; \
struct dispatch_queue_s *do_targetq; \
void *do_ctxt; \
void *do_finalizer; \
unsigned int do_suspend_cnt;
#define DISPATCH_OBJECT_GLOBAL_REFCNT _OS_OBJECT_GLOBAL_REFCNT
#define DISPATCH_OBJECT_SUSPEND_LOCK 1u
#define DISPATCH_OBJECT_SUSPEND_INTERVAL 2u
#define DISPATCH_OBJECT_SUSPENDED(x) \
((x)->do_suspend_cnt >= DISPATCH_OBJECT_SUSPEND_INTERVAL)
#ifdef __LP64__
#define DISPATCH_OBJECT_LISTLESS ((void *)0xffffffff89abcdef)
#else
#define DISPATCH_OBJECT_LISTLESS ((void *)0x89abcdef)
#endif
enum {
_DISPATCH_CONTINUATION_TYPE = 0x00000, _DISPATCH_QUEUE_TYPE = 0x10000, _DISPATCH_SOURCE_TYPE = 0x20000, _DISPATCH_SEMAPHORE_TYPE = 0x30000, _DISPATCH_NODE_TYPE = 0x40000, _DISPATCH_IO_TYPE = 0x50000, _DISPATCH_OPERATION_TYPE = 0x60000, _DISPATCH_DISK_TYPE = 0x70000, _DISPATCH_META_TYPE_MASK = 0xfff0000, _DISPATCH_ATTR_TYPE = 0x10000000,
DISPATCH_CONTINUATION_TYPE = _DISPATCH_CONTINUATION_TYPE,
DISPATCH_DATA_TYPE = 1 | _DISPATCH_NODE_TYPE,
DISPATCH_MACH_MSG_TYPE = 2 | _DISPATCH_NODE_TYPE,
DISPATCH_IO_TYPE = _DISPATCH_IO_TYPE,
DISPATCH_OPERATION_TYPE = _DISPATCH_OPERATION_TYPE,
DISPATCH_DISK_TYPE = _DISPATCH_DISK_TYPE,
DISPATCH_QUEUE_ATTR_TYPE = _DISPATCH_QUEUE_TYPE |_DISPATCH_ATTR_TYPE,
DISPATCH_QUEUE_TYPE = 1 | _DISPATCH_QUEUE_TYPE,
DISPATCH_QUEUE_ROOT_TYPE = 2 | _DISPATCH_QUEUE_TYPE,
DISPATCH_QUEUE_MGR_TYPE = 3 | _DISPATCH_QUEUE_TYPE,
DISPATCH_QUEUE_SPECIFIC_TYPE = 4 | _DISPATCH_QUEUE_TYPE,
DISPATCH_SEMAPHORE_TYPE = 1 | _DISPATCH_SEMAPHORE_TYPE,
DISPATCH_GROUP_TYPE = 2 | _DISPATCH_SEMAPHORE_TYPE,
DISPATCH_SOURCE_KEVENT_TYPE = 1 | _DISPATCH_SOURCE_TYPE,
DISPATCH_MACH_CHANNEL_TYPE = 2 | _DISPATCH_SOURCE_TYPE,
};
DISPATCH_SUBCLASS_DECL(object, object);
struct dispatch_object_s {
DISPATCH_STRUCT_HEADER(object);
};
size_t _dispatch_object_debug_attr(dispatch_object_t dou, char* buf,
size_t bufsiz);
void *_dispatch_alloc(const void *vtable, size_t size);
void _dispatch_retain(dispatch_object_t dou);
void _dispatch_release(dispatch_object_t dou);
void _dispatch_xref_dispose(dispatch_object_t dou);
void _dispatch_dispose(dispatch_object_t dou);
#if DISPATCH_COCOA_COMPAT
void *_dispatch_autorelease_pool_push(void);
void _dispatch_autorelease_pool_pop(void *context);
#endif
#if USE_OBJC
#include <objc/runtime.h>
#define OS_OBJC_CLASS_SYMBOL(name) \
DISPATCH_CONCAT(OBJC_CLASS_$_,name)
#define OS_OBJC_CLASS_DECL(name) \
extern void *OS_OBJC_CLASS_SYMBOL(name)
#define OS_OBJC_CLASS(name) \
((Class)&OS_OBJC_CLASS_SYMBOL(name))
#define OS_OBJECT_OBJC_CLASS_DECL(name) \
OS_OBJC_CLASS_DECL(OS_OBJECT_CLASS(name))
#define OS_OBJECT_OBJC_CLASS(name) \
OS_OBJC_CLASS(OS_OBJECT_CLASS(name))
#define DISPATCH_OBJC_CLASS_DECL(name) \
OS_OBJC_CLASS_DECL(DISPATCH_CLASS(name))
#define DISPATCH_OBJC_CLASS(name) \
OS_OBJC_CLASS(DISPATCH_CLASS(name))
OS_OBJECT_OBJC_CLASS_DECL(object);
DISPATCH_OBJC_CLASS_DECL(object);
#define DISPATCH_OBJECT_TFB(f, o, ...) \
if (slowpath((uintptr_t)((o)._os_obj->os_obj_isa) & 1) || \
slowpath((Class)((o)._os_obj->os_obj_isa) < \
DISPATCH_OBJC_CLASS(object)) || \
slowpath((Class)((o)._os_obj->os_obj_isa) >= \
OS_OBJECT_OBJC_CLASS(object))) { \
return f((o), ##__VA_ARGS__); \
}
id _dispatch_objc_alloc(Class cls, size_t size);
void _dispatch_objc_retain(dispatch_object_t dou);
void _dispatch_objc_release(dispatch_object_t dou);
void _dispatch_objc_set_context(dispatch_object_t dou, void *context);
void *_dispatch_objc_get_context(dispatch_object_t dou);
void _dispatch_objc_set_finalizer_f(dispatch_object_t dou,
dispatch_function_t finalizer);
void _dispatch_objc_set_target_queue(dispatch_object_t dou,
dispatch_queue_t queue);
void _dispatch_objc_suspend(dispatch_object_t dou);
void _dispatch_objc_resume(dispatch_object_t dou);
size_t _dispatch_objc_debug(dispatch_object_t dou, char* buf, size_t bufsiz);
#if __OBJC2__
@interface NSObject (DISPATCH_CONCAT(_,DISPATCH_CLASS(object)))
- (void)_setContext:(void*)context;
- (void*)_getContext;
- (void)_setFinalizer:(dispatch_function_t)finalizer;
- (void)_setTargetQueue:(dispatch_queue_t)queue;
- (void)_suspend;
- (void)_resume;
@end
#endif // __OBJC2__
#else // USE_OBJC
#define DISPATCH_OBJECT_TFB(f, o, ...)
#endif // USE_OBJC
#pragma mark -
#pragma mark _os_object_s
typedef struct _os_object_class_s {
_OS_OBJECT_CLASS_HEADER();
} _os_object_class_s;
typedef struct _os_object_s {
_OS_OBJECT_HEADER(
const _os_object_class_s *os_obj_isa,
os_obj_ref_cnt,
os_obj_xref_cnt);
} _os_object_s;
void _os_object_init(void);
unsigned long _os_object_retain_count(_os_object_t obj);
bool _os_object_retain_weak(_os_object_t obj);
bool _os_object_allows_weak_reference(_os_object_t obj);
void _os_object_dispose(_os_object_t obj);
void _os_object_xref_dispose(_os_object_t obj);
#endif // __DISPATCH_OBJECT_INTERNAL__