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<h1>include/class/class.h</h1> </div>
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<a href="class_2class_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
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<a name="l00027"></a>00027 <span class="preprocessor">#ifndef __CLASS_CLASS_H__</span>
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<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#define __CLASS_CLASS_H__</span>
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<a name="l00029"></a>00029 <span class="preprocessor"></span>
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<a name="l00030"></a>00030 <span class="preprocessor">#include <stdarg.h></span>
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<a name="l00031"></a>00031 <span class="preprocessor">#include <sys/types.h></span>
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<a name="l00032"></a>00032 <span class="preprocessor">#include <string.h></span>
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<a name="l00033"></a>00033 <span class="preprocessor">#include <assert.h></span>
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<a name="l00034"></a>00034
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<a name="l00035"></a>00035 <span class="preprocessor">#include "class/interface.h"</span>
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<a name="l00036"></a>00036
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<a name="l00037"></a>00037 <span class="preprocessor">#ifndef _ISOC99_SOURCE</span>
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<a name="l00038"></a><a class="code" href="class_2class_8h.html#a04ec2c53aa9fcdb5b58dc8e9d552dec0">00038</a> <span class="preprocessor"></span><span class="preprocessor">#define _ISOC99_SOURCE</span>
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<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
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<a name="l00040"></a>00040 <span class="preprocessor"></span>
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<a name="l00041"></a><a class="code" href="class_2class_8h.html#a28c4c4c1ebf62795262a3553d59e8bff">00041</a> <span class="preprocessor">#define CLASS_MAGIC 0xFEFE</span>
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<a name="l00042"></a>00042 <span class="preprocessor"></span>
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<a name="l00043"></a><a class="code" href="class_2class_8h.html#ab12c2142e0ec3f4f19a03b3879c67f32">00043</a> <span class="preprocessor">#define CLASS(name) \</span>
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<a name="l00044"></a>00044 <span class="preprocessor"> struct c_##name; \</span>
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<a name="l00045"></a>00045 <span class="preprocessor"> typedef struct c_##name * name; \</span>
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<a name="l00046"></a>00046 <span class="preprocessor"> extern struct class * const _##name; \</span>
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<a name="l00047"></a>00047 <span class="preprocessor"> struct c_##name</span>
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<a name="l00048"></a>00048 <span class="preprocessor"></span>
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<a name="l00049"></a><a class="code" href="class_2class_8h.html#a45e588b871b5b73461805ab4a5c59aa5">00049</a> <span class="preprocessor">#define EXTENDS(parent) \</span>
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<a name="l00050"></a>00050 <span class="preprocessor"> const char _[sizeof(struct c_##parent)]</span>
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<a name="l00051"></a>00051 <span class="preprocessor"></span>
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<a name="l00052"></a><a class="code" href="class_2class_8h.html#ab9f9098d95379c04d979721396dabf68">00052</a> <span class="preprocessor">#define _NULL NULL</span>
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<a name="l00053"></a><a class="code" href="class_2class_8h.html#a509b4880afb25bb862c448d7a71e7afe">00053</a> <span class="preprocessor"></span><span class="preprocessor">#define CREATE_CLASS(name,_parent,...) \</span>
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<a name="l00054"></a>00054 <span class="preprocessor"> static struct class c_##name; \</span>
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<a name="l00055"></a>00055 <span class="preprocessor"> static class_ptr _classInit##name##_(void) { \</span>
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<a name="l00056"></a>00056 <span class="preprocessor"> c_##name.parent = _##_parent; \</span>
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<a name="l00057"></a>00057 <span class="preprocessor"> c_##name.init = NULL; \</span>
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<a name="l00058"></a>00058 <span class="preprocessor"> return &c_##name; \</span>
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<a name="l00059"></a>00059 <span class="preprocessor"> } \</span>
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<a name="l00060"></a>00060 <span class="preprocessor"> static struct class c_##name = { \</span>
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<a name="l00061"></a>00061 <span class="preprocessor"> CLASS_MAGIC, \</span>
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<a name="l00062"></a>00062 <span class="preprocessor"> NULL, \</span>
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<a name="l00063"></a>00063 <span class="preprocessor"> sizeof(struct c_##name), \</span>
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<a name="l00064"></a>00064 <span class="preprocessor"> _classInit##name##_, \</span>
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<a name="l00065"></a>00065 <span class="preprocessor"> INIT_IFACE_IMPL(__VA_ARGS__) \</span>
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<a name="l00066"></a>00066 <span class="preprocessor"> }; struct class * const _##name = &c_##name</span>
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<a name="l00067"></a>00067 <span class="preprocessor"></span>
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<a name="l00068"></a><a class="code" href="class_2class_8h.html#ac7b99597686f59e4a34cd9cadd30d1d6">00068</a> <span class="preprocessor">#define INIT_CLASS(class) ((class)->init? (class)->init() : (class))</span>
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<a name="l00069"></a><a class="code" href="class_2class_8h.html#a97a9cde15dbb06287accf0a392b0c2ed">00069</a> <span class="preprocessor"></span><span class="preprocessor">#define GET_CLASS(object) (INIT_CLASS(*(class_ptr *)((void*)(object) - sizeof(void*))))</span>
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<a name="l00070"></a><a class="code" href="class_2class_8h.html#adb99542d8748b5108322ccb26bb367e0">00070</a> <span class="preprocessor"></span><span class="preprocessor">#define IFACE_GET(class,iface) (interfaceGet(&((class)->impl),(iface)))</span>
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<a name="l00071"></a><a class="code" href="class_2class_8h.html#a5ea9893a0e62748b9d1154d5b77abed1">00071</a> <span class="preprocessor"></span><span class="preprocessor">#define HAS_PARENT(class) (NULL != ((class)->parent) && INIT_CLASS((class)->parent))</span>
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<a name="l00072"></a>00072 <span class="preprocessor"></span>
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<a name="l00073"></a><a class="code" href="class_2class_8h.html#af082d22d6b335bd2ee7cf16a7b85cba3">00073</a> <span class="preprocessor">#define IS_OBJECT(obj) ((GET_CLASS((obj)))->magic == CLASS_MAGIC)</span>
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<a name="l00074"></a><a class="code" href="class_2class_8h.html#ac0ac189d082986b87d215d5423da80a3">00074</a> <span class="preprocessor"></span><span class="preprocessor">#define INSTANCE_OF(class,obj) ((GET_CLASS((obj))) == _##class)</span>
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<a name="l00075"></a>00075 <span class="preprocessor"></span>
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<a name="l00080"></a><a class="code" href="class_2class_8h.html#a99192587726791d3fc572b54986794d5">00080</a> <span class="preprocessor">#define _CALL(_class,_iface,method,...) \</span>
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<a name="l00081"></a>00081 <span class="preprocessor"> do { \</span>
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<a name="l00082"></a>00082 <span class="preprocessor"> class_ptr class = _class; \</span>
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<a name="l00083"></a>00083 <span class="preprocessor"> iface = (struct i_##_iface *)IFACE_GET(class, &i_##_iface); \</span>
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<a name="l00084"></a>00084 <span class="preprocessor"> while ((NULL == iface || NULL == iface->method) && HAS_PARENT(class)) { \</span>
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<a name="l00085"></a>00085 <span class="preprocessor"> class = class->parent; \</span>
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<a name="l00086"></a>00086 <span class="preprocessor"> iface = (struct i_##_iface *)IFACE_GET(class, &i_##_iface); \</span>
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<a name="l00087"></a>00087 <span class="preprocessor"> } \</span>
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<a name="l00088"></a>00088 <span class="preprocessor"> assert(NULL != iface->method); \</span>
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<a name="l00089"></a>00089 <span class="preprocessor"> } while(0)</span>
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<a name="l00090"></a>00090 <span class="preprocessor"></span>
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<a name="l00091"></a><a class="code" href="class_2class_8h.html#ada752d9d1fdbf84e978606e8999c762d">00091</a> <span class="preprocessor">#define CALL(object,_iface,method,...) \</span>
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<a name="l00092"></a>00092 <span class="preprocessor"> do { \</span>
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<a name="l00093"></a>00093 <span class="preprocessor"> struct i_##_iface * iface; \</span>
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<a name="l00094"></a>00094 <span class="preprocessor"> _CALL(GET_CLASS(object), _iface, method, ##__VA_ARGS__); \</span>
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<a name="l00095"></a>00095 <span class="preprocessor"> iface->method(object, ##__VA_ARGS__); \</span>
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<a name="l00096"></a>00096 <span class="preprocessor"> } while(0)</span>
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<a name="l00097"></a>00097 <span class="preprocessor"></span>
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<a name="l00098"></a><a class="code" href="class_2class_8h.html#a06fb0f2e08d1cbacbed6784319e7c3fc">00098</a> <span class="preprocessor">#define RETCALL(object,_iface,method,ret,...) \</span>
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<a name="l00099"></a>00099 <span class="preprocessor"> do { \</span>
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<a name="l00100"></a>00100 <span class="preprocessor"> struct i_##_iface * iface; \</span>
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<a name="l00101"></a>00101 <span class="preprocessor"> _CALL(GET_CLASS(object), _iface, method, ##__VA_ARGS__); \</span>
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<a name="l00102"></a>00102 <span class="preprocessor"> ret = iface->method(object, ##__VA_ARGS__); \</span>
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<a name="l00103"></a>00103 <span class="preprocessor"> } while(0)</span>
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<a name="l00104"></a>00104 <span class="preprocessor"></span>
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<a name="l00105"></a><a class="code" href="class_2class_8h.html#ab6391ca75b58104db1fc948f2e066e8d">00105</a> <span class="preprocessor">#define PARENTCALL(object,_iface,method,...) \</span>
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<a name="l00106"></a>00106 <span class="preprocessor"> do { \</span>
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<a name="l00107"></a>00107 <span class="preprocessor"> struct i_##_iface * iface; \</span>
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<a name="l00108"></a>00108 <span class="preprocessor"> class_ptr pc_class = GET_CLASS((object)); \</span>
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<a name="l00109"></a>00109 <span class="preprocessor"> assert(HAS_PARENT(pc_class)); \</span>
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<a name="l00110"></a>00110 <span class="preprocessor"> _CALL(pc_class->parent, _iface, method, ##__VA_ARGS__); \</span>
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<a name="l00111"></a>00111 <span class="preprocessor"> iface->method(object, ##__VA_ARGS__); \</span>
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<a name="l00112"></a>00112 <span class="preprocessor"> } while(0)</span>
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<a name="l00113"></a>00113 <span class="preprocessor"></span>
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<a name="l00114"></a>00114
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<a name="l00115"></a>00115 <span class="keyword">struct </span><a class="code" href="structclass.html">class</a>;
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<a name="l00116"></a><a class="code" href="class_2class_8h.html#a68df9f6e346c5fad9f61bb2557d1d832">00116</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structclass.html">class</a> * <a class="code" href="class_2class_8h.html#a68df9f6e346c5fad9f61bb2557d1d832">class_ptr</a>;
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<a name="l00117"></a><a class="code" href="class_2class_8h.html#ab52c459c2835deaf920d45ff67b5f591">00117</a> <span class="keyword">typedef</span> <a class="code" href="class_2class_8h.html#a68df9f6e346c5fad9f61bb2557d1d832">class_ptr</a> (* <a class="code" href="class_2class_8h.html#ab52c459c2835deaf920d45ff67b5f591">fptr_classInit</a>)(void);
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<a name="l00118"></a><a class="code" href="structclass.html">00118</a> <span class="keyword">struct </span><a class="code" href="structclass.html">class</a> {
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<a name="l00119"></a><a class="code" href="structclass.html#a395a6874758c92188945df7c070f5ff1">00119</a> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="structclass.html#a395a6874758c92188945df7c070f5ff1">magic</a>;
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<a name="l00120"></a><a class="code" href="structclass.html#a97f697cb86be7a39d4477e971074ae6e">00120</a> class_ptr <a class="code" href="structclass.html#a97f697cb86be7a39d4477e971074ae6e">parent</a>;
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<a name="l00121"></a><a class="code" href="structclass.html#a31f0b35f94229885e948d55bac214c0d">00121</a> <span class="keywordtype">size_t</span> <a class="code" href="structclass.html#a31f0b35f94229885e948d55bac214c0d">object_size</a>;
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<a name="l00122"></a><a class="code" href="structclass.html#a744967ad02b74a9464c1224c7fa05b23">00122</a> <a class="code" href="class_2class_8h.html#ab52c459c2835deaf920d45ff67b5f591">fptr_classInit</a> <a class="code" href="structclass.html#a744967ad02b74a9464c1224c7fa05b23">init</a>;
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<a name="l00123"></a>00123 <span class="keyword">struct </span><a class="code" href="structiface__impl.html">iface_impl</a> <a class="code" href="structiface__impl.html#a4f3e0d7f7bbd7e3f98472a140c37c1ea">impl</a>;
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<a name="l00124"></a>00124 };
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<a name="l00125"></a>00125
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<a name="l00126"></a>00126 <span class="preprocessor">#endif // __CLASS_CLASS_H__</span>
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<a name="l00127"></a>00127 <span class="preprocessor"></span>
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<a name="l00128"></a>00128 <span class="comment">// vim: set ts=4 sw=4:</span>
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</pre></div></div>
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