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<h1>include/class.h</h1> </div>
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<a href="class_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef __CLASS_H__</span>
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<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define __CLASS_H__</span>
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<a name="l00003"></a>00003 <span class="preprocessor"></span>
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<a name="l00004"></a>00004 <span class="preprocessor">#include <stdarg.h></span>
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<a name="l00005"></a>00005 <span class="preprocessor">#include <sys/types.h></span>
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<a name="l00006"></a>00006 <span class="preprocessor">#include <string.h></span>
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<a name="l00007"></a>00007 <span class="preprocessor">#include <assert.h></span>
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<a name="l00008"></a>00008
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<a name="l00009"></a>00009 <span class="preprocessor">#include "<a class="code" href="interface_8h.html">interface.h</a>"</span>
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<a name="l00010"></a>00010
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<a name="l00011"></a><a class="code" href="class_8h.html#a04ec2c53aa9fcdb5b58dc8e9d552dec0">00011</a> <span class="preprocessor">#define _ISOC99_SOURCE</span>
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<a name="l00012"></a>00012 <span class="preprocessor"></span>
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<a name="l00013"></a><a class="code" href="class_8h.html#a28c4c4c1ebf62795262a3553d59e8bff">00013</a> <span class="preprocessor">#define CLASS_MAGIC 0xFEFE</span>
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<a name="l00014"></a>00014 <span class="preprocessor"></span>
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<a name="l00015"></a><a class="code" href="class_8h.html#ab12c2142e0ec3f4f19a03b3879c67f32">00015</a> <span class="preprocessor">#define CLASS(name) \</span>
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<a name="l00016"></a>00016 <span class="preprocessor"> struct c_##name; \</span>
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<a name="l00017"></a>00017 <span class="preprocessor"> typedef struct c_##name * name; \</span>
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<a name="l00018"></a>00018 <span class="preprocessor"> extern struct class * const _##name; \</span>
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<a name="l00019"></a>00019 <span class="preprocessor"> struct c_##name</span>
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<a name="l00020"></a>00020 <span class="preprocessor"></span>
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<a name="l00021"></a><a class="code" href="class_8h.html#a45e588b871b5b73461805ab4a5c59aa5">00021</a> <span class="preprocessor">#define EXTENDS(parent) \</span>
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<a name="l00022"></a>00022 <span class="preprocessor"> const char _[sizeof(struct c_##parent)]</span>
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<a name="l00023"></a>00023 <span class="preprocessor"></span>
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<a name="l00024"></a><a class="code" href="class_8h.html#ab9f9098d95379c04d979721396dabf68">00024</a> <span class="preprocessor">#define _NULL NULL</span>
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<a name="l00025"></a><a class="code" href="class_8h.html#a509b4880afb25bb862c448d7a71e7afe">00025</a> <span class="preprocessor"></span><span class="preprocessor">#define CREATE_CLASS(name,_parent,...) \</span>
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<a name="l00026"></a>00026 <span class="preprocessor"> static struct class c_##name; \</span>
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<a name="l00027"></a>00027 <span class="preprocessor"> static void _classInit_(void) { \</span>
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<a name="l00028"></a>00028 <span class="preprocessor"> c_##name.parent = _##_parent; \</span>
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<a name="l00029"></a>00029 <span class="preprocessor"> c_##name.init = NULL; \</span>
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<a name="l00030"></a>00030 <span class="preprocessor"> } \</span>
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<a name="l00031"></a>00031 <span class="preprocessor"> static struct class c_##name = { \</span>
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<a name="l00032"></a>00032 <span class="preprocessor"> CLASS_MAGIC, \</span>
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<a name="l00033"></a>00033 <span class="preprocessor"> NULL, \</span>
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<a name="l00034"></a>00034 <span class="preprocessor"> sizeof(struct c_##name), \</span>
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<a name="l00035"></a>00035 <span class="preprocessor"> _classInit_, \</span>
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<a name="l00036"></a>00036 <span class="preprocessor"> INIT_IMPL(__VA_ARGS__) \</span>
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<a name="l00037"></a>00037 <span class="preprocessor"> }; struct class * const _##name = &c_##name</span>
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<a name="l00038"></a>00038 <span class="preprocessor"></span>
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<a name="l00043"></a><a class="code" href="class_8h.html#a2e9a0b177e4115cc7e547b51ac35c5af">00043</a> <span class="preprocessor">#define _CALL(object,_iface,method,...) \</span>
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<a name="l00044"></a>00044 <span class="preprocessor"> class_ptr class = class_getClass((object)); \</span>
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<a name="l00045"></a>00045 <span class="preprocessor"> struct i_##_iface * iface; \</span>
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<a name="l00046"></a>00046 <span class="preprocessor"> if (class->init) class->init(); \</span>
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<a name="l00047"></a>00047 <span class="preprocessor"> iface = (struct i_##_iface *)class_getInterface(&class, &i_##_iface); \</span>
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<a name="l00048"></a>00048 <span class="preprocessor"> while ((NULL == iface || NULL == iface->method) && HAS_PARENT(class)) { \</span>
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<a name="l00049"></a>00049 <span class="preprocessor"> class = class->parent; \</span>
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<a name="l00050"></a>00050 <span class="preprocessor"> if (class->init) class->init(); \</span>
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<a name="l00051"></a>00051 <span class="preprocessor"> iface = (struct i_##_iface *)class_getInterface(&class, &i_##_iface); \</span>
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<a name="l00052"></a>00052 <span class="preprocessor"> }; \</span>
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<a name="l00053"></a>00053 <span class="preprocessor"> assert(NULL != iface->method);</span>
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<a name="l00054"></a>00054 <span class="preprocessor"></span>
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<a name="l00055"></a><a class="code" href="class_8h.html#ada752d9d1fdbf84e978606e8999c762d">00055</a> <span class="preprocessor">#define CALL(object,_iface,method,...) \</span>
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<a name="l00056"></a>00056 <span class="preprocessor"> do { \</span>
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<a name="l00057"></a>00057 <span class="preprocessor"> _CALL(object, _iface, method, ##__VA_ARGS__); \</span>
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<a name="l00058"></a>00058 <span class="preprocessor"> iface->method(object, ##__VA_ARGS__); \</span>
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<a name="l00059"></a>00059 <span class="preprocessor"> } while(0)</span>
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<a name="l00060"></a>00060 <span class="preprocessor"></span>
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<a name="l00061"></a><a class="code" href="class_8h.html#a06fb0f2e08d1cbacbed6784319e7c3fc">00061</a> <span class="preprocessor">#define RETCALL(object,_iface,method,ret,...) \</span>
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<a name="l00062"></a>00062 <span class="preprocessor"> do { \</span>
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<a name="l00063"></a>00063 <span class="preprocessor"> _CALL(object, _iface, method, ##__VA_ARGS__); \</span>
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<a name="l00064"></a>00064 <span class="preprocessor"> ret = iface->method(object, ##__VA_ARGS__); \</span>
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<a name="l00065"></a>00065 <span class="preprocessor"> } while(0)</span>
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<a name="l00066"></a>00066 <span class="preprocessor"></span>
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<a name="l00067"></a>00067
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<a name="l00068"></a><a class="code" href="class_8h.html#adb99542d8748b5108322ccb26bb367e0">00068</a> <span class="preprocessor">#define IFACE_GET(class,iface) (interfaceGet(&((class)->impl),(iface)))</span>
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<a name="l00069"></a><a class="code" href="class_8h.html#a80e924aca338b869530dde0a9389e916">00069</a> <span class="preprocessor"></span><span class="preprocessor">#define IFACE_EXISTS(class,iface) (NULL != IFACE_GET((class),(iface)))</span>
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<a name="l00070"></a>00070 <span class="preprocessor"></span>
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<a name="l00071"></a><a class="code" href="class_8h.html#a5ea9893a0e62748b9d1154d5b77abed1">00071</a> <span class="preprocessor">#define HAS_PARENT(class) (NULL != ((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_8h.html#aa0ba47bce818b20155a8ef17a1fdc35c">00073</a> <span class="keyword">typedef</span> void (* <a class="code" href="class_8h.html#aa0ba47bce818b20155a8ef17a1fdc35c">fptr_classInit</a>)(void);
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<a name="l00074"></a>00074
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<a name="l00075"></a>00075 <span class="keyword">struct </span><a class="code" href="structclass.html">class</a>;
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<a name="l00076"></a><a class="code" href="class_8h.html#a68df9f6e346c5fad9f61bb2557d1d832">00076</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structclass.html">class</a> * <a class="code" href="class_8h.html#a68df9f6e346c5fad9f61bb2557d1d832">class_ptr</a>;
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<a name="l00077"></a><a class="code" href="structclass.html">00077</a> <span class="keyword">struct </span><a class="code" href="structclass.html">class</a> {
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<a name="l00078"></a><a class="code" href="structclass.html#a395a6874758c92188945df7c070f5ff1">00078</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="l00079"></a><a class="code" href="structclass.html#a97f697cb86be7a39d4477e971074ae6e">00079</a> class_ptr <a class="code" href="structclass.html#a97f697cb86be7a39d4477e971074ae6e">parent</a>;
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<a name="l00080"></a><a class="code" href="structclass.html#a31f0b35f94229885e948d55bac214c0d">00080</a> <span class="keywordtype">size_t</span> <a class="code" href="structclass.html#a31f0b35f94229885e948d55bac214c0d">object_size</a>;
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<a name="l00081"></a><a class="code" href="structclass.html#a744967ad02b74a9464c1224c7fa05b23">00081</a> <a class="code" href="class_8h.html#aa0ba47bce818b20155a8ef17a1fdc35c">fptr_classInit</a> <a class="code" href="structclass.html#a744967ad02b74a9464c1224c7fa05b23">init</a>;
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<a name="l00082"></a>00082 <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="l00083"></a>00083 };
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<a name="l00084"></a>00084
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<a name="l00085"></a>00085 <span class="keyword">extern</span> <span class="keywordtype">void</span> * <a class="code" href="class_8h.html#ad96186de45579eb423ab318a5caaf62f">class_getInterface</a>(class_ptr *, <a class="code" href="structinterface.html">iface_ptr</a>);
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<a name="l00086"></a>00086 <span class="keyword">extern</span> class_ptr <a class="code" href="class_8h.html#a1f382a42de272d5cc4d6bb5b17db6ede">class_getClass</a>(<span class="keywordtype">void</span> *);
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<a name="l00087"></a>00087
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<a name="l00088"></a>00088 <span class="preprocessor">#endif // __CLASS_H__</span>
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<a name="l00089"></a>00089 <span class="preprocessor"></span>
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<a name="l00090"></a>00090 <span class="comment">// vim: set ts=4 sw=4:</span>
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</pre></div></div>
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