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<h1>include/nucleus/map.h</h1><a href="map_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00023"></a>00023 <span class="preprocessor">#ifndef _XENO_NUCLEUS_MAP_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#define _XENO_NUCLEUS_MAP_H</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <nucleus/types.h></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#define XNMAP_MAX_KEYS (BITS_PER_LONG * BITS_PER_LONG)</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span>
<a name="l00033"></a>00033 <span class="keyword">typedef</span> <span class="keyword">struct </span>xnmap {
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="keywordtype">int</span> nkeys;
<a name="l00036"></a>00036 <span class="keywordtype">int</span> ukeys;
<a name="l00037"></a>00037 <span class="keywordtype">int</span> offset;
<a name="l00038"></a>00038 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> himask;
<a name="l00039"></a>00039 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> himap;
<a name="l00040"></a>00040 <span class="preprocessor">#define __IDMAP_LONGS ((XNMAP_MAX_KEYS+BITS_PER_LONG-1)/BITS_PER_LONG)</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> lomap[__IDMAP_LONGS];
<a name="l00042"></a>00042 <span class="preprocessor">#undef __IDMAP_LONGS</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span> <span class="keywordtype">void</span> *objarray[1];
<a name="l00044"></a>00044
<a name="l00045"></a>00045 } xnmap_t;
<a name="l00046"></a>00046
<a name="l00047"></a>00047 xnmap_t *<a class="code" href="group__map.html#g011ef197e2f81ad708858902787f04f8" title="Create a map.">xnmap_create</a>(<span class="keywordtype">int</span> nkeys,
<a name="l00048"></a>00048 <span class="keywordtype">int</span> reserve,
<a name="l00049"></a>00049 <span class="keywordtype">int</span> offset);
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keywordtype">void</span> <a class="code" href="group__map.html#g1a5b1c7a8e7966a2dd58404a0385aca8" title="Delete a map.">xnmap_delete</a>(xnmap_t *map);
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="keywordtype">int</span> <a class="code" href="group__map.html#gdc5657b93b294c935ac6864fac5fdaa4" title="Index an object into a map.">xnmap_enter</a>(xnmap_t *map,
<a name="l00054"></a>00054 <span class="keywordtype">int</span> key,
<a name="l00055"></a>00055 <span class="keywordtype">void</span> *objaddr);
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keywordtype">int</span> <a class="code" href="group__map.html#g06ec1012c075be6dbbadd2d88220abf5" title="Remove an object reference from a map.">xnmap_remove</a>(xnmap_t *map,
<a name="l00058"></a>00058 <span class="keywordtype">int</span> key);
<a name="l00059"></a>00059
<a name="l00060"></a><a class="code" href="group__map.html#g651ded315d1eec00d1e661e52ce4a10e">00060</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> *<a class="code" href="group__map.html#g651ded315d1eec00d1e661e52ce4a10e" title="Search an object into a map - unchecked form.">xnmap_fetch_nocheck</a>(xnmap_t *map, <span class="keywordtype">int</span> key)
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 <span class="keywordtype">int</span> ofkey = key - map->offset;
<a name="l00063"></a>00063 <span class="keywordflow">return</span> map->objarray[ofkey];
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065
<a name="l00066"></a><a class="code" href="group__map.html#g52a2727670d06e52b9b73b0c2c1d60d7">00066</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> *<a class="code" href="group__map.html#g52a2727670d06e52b9b73b0c2c1d60d7" title="Search an object into a map.">xnmap_fetch</a>(xnmap_t *map, <span class="keywordtype">int</span> key)
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <span class="keywordtype">int</span> ofkey = key - map->offset;
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keywordflow">if</span> (ofkey < 0 || ofkey >= map->nkeys)
<a name="l00071"></a>00071 <span class="keywordflow">return</span> NULL;
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keywordflow">return</span> map->objarray[ofkey];
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075
<a name="l00078"></a>00078 <span class="preprocessor">#endif </span><span class="comment">/* !_XENO_NUCLEUS_MAP_H */</span>
</pre></div></div>
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