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Annotation of objc/objc-runtime.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.0 (the 'License').  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License."
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: /*
        !            25:  *     objc-runtime.h
        !            26:  *     Copyright 1988, NeXT, Inc.
        !            27:  */
        !            28: 
        !            29: #ifndef _OBJC_RUNTIME_H_
        !            30: #define _OBJC_RUNTIME_H_
        !            31: 
        !            32: #import "objc.h"
        !            33: #import "objc-class.h"
        !            34: #import "hashtable.h"
        !            35: #import "Object.h"
        !            36: 
        !            37: typedef struct objc_symtab *Symtab;
        !            38: 
        !            39: struct objc_symtab {
        !            40:        unsigned long   sel_ref_cnt;
        !            41:        SEL             *refs;          
        !            42:        unsigned short  cls_def_cnt;
        !            43:        unsigned short  cat_def_cnt;
        !            44:        void            *defs[1];       /* variable size */
        !            45: };
        !            46: 
        !            47: typedef struct objc_module *Module;
        !            48: 
        !            49: struct objc_module {
        !            50:        unsigned long   version;
        !            51:        unsigned long   size;
        !            52:        const char      *name;
        !            53:        Symtab          symtab; 
        !            54: };
        !            55: 
        !            56: struct objc_super {
        !            57:        id receiver;
        !            58:        Class class;
        !            59: };
        !            60: 
        !            61: /* kernel operations */
        !            62: 
        !            63: extern id objc_getClass(const char *name);
        !            64: extern id objc_getMetaClass(const char *name);
        !            65: extern id objc_msgSend(id self, SEL op, ...);
        !            66: extern id objc_msgSendSuper(struct objc_super *super, SEL op, ...);
        !            67: 
        !            68: /* forwarding operations */
        !            69: 
        !            70: extern id objc_msgSendv(id self, SEL op, unsigned arg_size, marg_list arg_frame);
        !            71: 
        !            72: /* 
        !            73:    iterating over all the classes in the application...
        !            74:   
        !            75:    NXHashTable *class_hash = objc_getClasses();
        !            76:    NXHashState state = NXInitHashState(class_hash);
        !            77:    Class class;
        !            78:   
        !            79:    while (NXNextHashState(class_hash, &state, &class)
        !            80:      ...;
        !            81:  */
        !            82: extern NXHashTable *objc_getClasses();
        !            83: extern Module *objc_getModules();
        !            84: extern id objc_lookUpClass(const char *name);
        !            85: extern void objc_addClass(Class myClass);
        !            86: 
        !            87: /* customizing the error handling for objc_getClass/objc_getMetaClass */
        !            88: 
        !            89: extern void objc_setClassHandler(int (*)(const char *));
        !            90: 
        !            91: /* Making the Objective-C runtime thread safe. */
        !            92: extern void objc_setMultithreaded (BOOL flag);
        !            93: 
        !            94: /* overriding the default object allocation and error handling routines */
        !            95: 
        !            96: extern id      (*_alloc)(Class, unsigned int);
        !            97: extern id      (*_copy)(Object *, unsigned int);
        !            98: extern id      (*_realloc)(Object *, unsigned int);
        !            99: extern id      (*_dealloc)(Object *);
        !           100: extern id      (*_zoneAlloc)(Class, unsigned int, NXZone *);
        !           101: extern id      (*_zoneRealloc)(Object *, unsigned int, NXZone *);
        !           102: extern id      (*_zoneCopy)(Object *, unsigned int, NXZone *);
        !           103: extern void    (*_error)(Object *, const char *, va_list);
        !           104: 
        !           105: #endif /* _OBJC_RUNTIME_H_ */

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