1  /*
 2   * Copyright (c) 2010 Kungliga Tekniska Högskolan
 3   * (Royal Institute of Technology, Stockholm, Sweden).
 4   * All rights reserved.
 5   *
 6   * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
 7   *
 8   * Redistribution and use in source and binary forms, with or without
 9   * modification, are permitted provided that the following conditions
10   * are met:
11   *
12   * 1. Redistributions of source code must retain the above copyright
13   *    notice, this list of conditions and the following disclaimer.
14   *
15   * 2. Redistributions in binary form must reproduce the above copyright
16   *    notice, this list of conditions and the following disclaimer in the
17   *    documentation and/or other materials provided with the distribution.
18   *
19   * 3. Neither the name of the Institute nor the names of its contributors
20   *    may be used to endorse or promote products derived from this software
21   *    without specific prior written permission.
22   *
23   * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26   * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33   * SUCH DAMAGE.
34   */
35  
36  typedef void (*heim_type_init)(void *);
37  typedef heim_object_t (*heim_type_copy)(void *);
38  typedef int (*heim_type_cmp)(void *, void *);
39  typedef unsigned long (*heim_type_hash)(void *);
40  
41  typedef struct heim_type_data *heim_type_t;
42  
43  enum {
44      HEIM_TID_NUMBER = 0,
45      HEIM_TID_NULL = 1,
46      HEIM_TID_BOOL = 2,
47      HEIM_TID_TAGGED_UNUSED2 = 3,
48      HEIM_TID_TAGGED_UNUSED3 = 4,
49      HEIM_TID_TAGGED_UNUSED4 = 5,
50      HEIM_TID_TAGGED_UNUSED5 = 6,
51      HEIM_TID_TAGGED_UNUSED6 = 7,
52      HEIM_TID_MEMORY = 128,
53      HEIM_TID_ARRAY = 129,
54      HEIM_TID_DICT = 130,
55      HEIM_TID_STRING = 131,
56      HEIM_TID_AUTORELEASE = 132,
57      HEIM_TID_DATA = 133,
58      HEIM_TID_ERROR = 134,
59      HEIM_TID_USER = 255
60  
61  };
62  
63  struct heim_type_data {
64      heim_tid_t tid;
65      const char *name;
66      heim_type_init init;
67      heim_type_dealloc dealloc;
68      heim_type_copy copy;
69      heim_type_cmp cmp;
70      heim_type_hash hash;
71  };
72  
73  heim_type_t _heim_get_isa(heim_object_t);
74  
75  heim_type_t
76  _heim_create_type(const char *name,
77  		  heim_type_init init,
78  		  heim_type_dealloc dealloc,
79  		  heim_type_copy copy,
80  		  heim_type_cmp cmp,
81  		  heim_type_hash hash);
82  
83  heim_object_t
84  _heim_alloc_object(heim_type_t type, size_t size);
85  
86  heim_tid_t
87  _heim_type_get_tid(heim_type_t type);
88  
89  /* tagged tid */
90  extern struct heim_type_data _heim_null_object;
91  extern struct heim_type_data _heim_bool_object;
92  extern struct heim_type_data _heim_number_object;
93  extern struct heim_type_data _heim_string_object;
94  
95  #ifdef __APPLE__
96  #define __heim_string_constant(x) ((heim_object_t)CFSTR(x))
97  #endif