/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#import "threading.h"
struct objc_abi_class {
struct objc_abi_class *metaclass;
const char *superclass;
const char *name;
unsigned long version;
unsigned long info;
unsigned long instance_size;
void *ivars;
struct objc_abi_method_list *methodlist;
void *dtable;
void *subclass_list;
void *sibling_class;
void *protocols;
void *gc_object_type;
long abi_version;
void *ivar_offsets;
void *properties;
};
struct objc_abi_method {
const char *name;
const char *types;
IMP imp;
};
struct objc_abi_method_list {
struct objc_abi_method_list *next;
unsigned int count;
struct objc_abi_method methods[1];
};
struct objc_abi_selector {
const char *name;
const char *types;
};
struct objc_abi_category {
const char *category_name;
const char *class_name;
struct objc_abi_method_list *instance_methods;
struct objc_abi_method_list *class_methods;
struct objc_protocol_list *protocols;
};
struct objc_abi_super {
id self;
Class class;
};
struct objc_abi_method_description {
const char *name;
const char *types;
};
struct objc_abi_method_description_list {
int count;
struct objc_abi_method_description list[1];
};
struct objc_abi_static_instances {
const char *class_name;
id instances[1];
};
struct objc_abi_symtab {
unsigned long unknown;
struct objc_abi_selector *sel_refs;
uint16_t cls_def_cnt;
uint16_t cat_def_cnt;
void *defs[1];
};
struct objc_abi_module {
unsigned long version; /* 9 = non-fragile */
unsigned long size;
const char *name;
struct objc_abi_symtab *symtab;
};
struct objc_hashtable_bucket {
const char *key;
const void *obj;
uint32_t hash;
};
struct objc_hashtable {
uint32_t count;
uint32_t last_idx;
struct objc_hashtable_bucket **data;
};
struct objc_sparsearray {
struct objc_sparsearray_level2 *buckets[256];
};
struct objc_sparsearray_level2 {
struct objc_sparsearray_level3 *buckets[256];
BOOL empty;
};
struct objc_sparsearray_level3 {
const void *buckets[256];
BOOL empty;
};
enum objc_abi_class_info {
OBJC_CLASS_INFO_CLASS = 0x01,
OBJC_CLASS_INFO_METACLASS = 0x02,
OBJC_CLASS_INFO_INITIALIZED = 0x04
};
typedef struct {
of_mutex_t mutex;
of_thread_t owner;
int count;
} objc_mutex_t;
extern void objc_register_all_categories(struct objc_abi_symtab*);
extern struct objc_category** objc_categories_for_class(Class);
extern void objc_free_all_categories(void);
extern void objc_update_dtable(Class);
extern void objc_register_all_classes(struct objc_abi_symtab*);
extern Class objc_classname_to_class(const char*);
extern void objc_free_all_classes(void);
extern uint32_t objc_hash_string(const char*);
extern struct objc_hashtable* objc_hashtable_alloc(uint32_t);
extern void objc_hashtable_set(struct objc_hashtable*, const char*,
const void*);
extern const void* objc_hashtable_get(struct objc_hashtable*, const char*);
extern void objc_hashtable_free(struct objc_hashtable *h);
extern BOOL objc_hashtable_warn_on_collision;
extern void objc_register_selector(struct objc_abi_selector*);
extern void objc_register_all_selectors(struct objc_abi_symtab*);
extern void objc_free_all_selectors(void);
extern struct objc_sparsearray* objc_sparsearray_new(void);
extern struct objc_sparsearray* objc_sparsearray_copy(struct objc_sparsearray*);
extern void objc_sparsearray_set(struct objc_sparsearray*, uint32_t,
const void*);
extern void objc_sparsearray_free(struct objc_sparsearray*);
extern void objc_sparsearray_free_when_singlethreaded(struct objc_sparsearray*);
extern void objc_sparsearray_cleanup(void);
extern void objc_init_static_instances(struct objc_abi_symtab*);
extern void __objc_exec_class(struct objc_abi_module*);
extern BOOL objc_mutex_new(objc_mutex_t*);
extern BOOL objc_mutex_lock(objc_mutex_t*);
extern BOOL objc_mutex_unlock(objc_mutex_t*);
extern BOOL objc_mutex_free(objc_mutex_t*);
extern void objc_global_mutex_lock(void);
extern void objc_global_mutex_unlock(void);
extern void objc_global_mutex_free(void);
extern void objc_free_when_singlethreaded(void*);
static inline const void*
objc_sparsearray_get(const struct objc_sparsearray *s, uint32_t idx)
{
uint8_t i = idx >> 16;
uint8_t j = idx >> 8;
uint8_t k = idx;
return s->buckets[i]->buckets[j]->buckets[k];
}
#define ERROR(...) \
{ \
fprintf(stderr, "[objc @ " __FILE__ ":%d] ", __LINE__); \
fprintf(stderr, __VA_ARGS__); \
fputs("\n", stderr); \
abort(); \
}