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<div class="headertitle"><div class="title">bitmap_cap_alloc</div></div>
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<a href="bitmap__cap__alloc.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// -*- Mode: C++ -*-</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// vim:ft=cpp</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * Alexander Warg <warg@os.inf.tu-dresden.de></span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * economic rights: Technische Universität Dresden (Germany)</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * License: see LICENSE.spdx (in this directory or the directories above)</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#pragma once</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <<a class="code" href="item__alloc.html">l4/re/util/item_alloc</a>></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <<a class="code" href="sys_2assert_8h.html">l4/sys/assert.h</a>></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <<a class="code" href="capability.html">l4/sys/capability</a>></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <<a class="code" href="l4_2sys_2task_8h.html">l4/sys/task.h</a>></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceL4Re.html">L4Re</a> { <span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceL4Re_1_1Util.html">Util</a> {</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span></div>
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<div class="foldopen" id="foldopen00028" data-start="{" data-end="};">
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"><a class="line" href="classL4Re_1_1Util_1_1Cap__alloc__base.html"> 28</a></span><span class="keyword">class </span>Cap_alloc_base</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span>{</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keywordtype">long</span> _bias;</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <a class="code hl_class" href="classL4Re_1_1Util_1_1Item__alloc__base.html">Item_alloc_base</a> _items;</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">template</span> <<span class="keywordtype">unsigned</span> COUNT></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">struct </span>Storage</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> {</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">typename</span> Bitmap_base::Word<COUNT>::Type _bits[Bitmap_base::Word<COUNT>::Size];</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> };</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">enum</span> State { Free = 0, Allocated, Unknown };</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> Cap_alloc_base(<span class="keywordtype">long</span> max, <span class="keywordtype">void</span> *mem, <span class="keywordtype">long</span> bias = 0, <span class="keywordtype">void</span> * = 0)</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> noexcept : _bias(bias), _items(max, mem) {}</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<void></a> <a class="code hl_function" href="classL4Re_1_1Util_1_1Cap__alloc__base.html#ab5359b2946b02fd6f364d6d66c2f4ae4">alloc</a>() <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> {</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordtype">long</span> cap = _items.alloc();</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">if</span> (cap < 0)</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="classL4_1_1Cap__base.html#ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a">L4::Cap<void>::Invalid</a>;</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<void></a>((cap + _bias) << <a class="code hl_enumvalue" href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879ac13ad59620aeba353454514a42950a85">L4_CAP_SHIFT</a>);</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> }</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">long</span> hint()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _items.hint(); }</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span></div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">template</span>< <span class="keyword">typename</span> T ></div>
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<div class="foldopen" id="foldopen00060" data-start="{" data-end="}">
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="classL4Re_1_1Util_1_1Cap__alloc__base.html#ab5359b2946b02fd6f364d6d66c2f4ae4"> 60</a></span> <a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<T></a> <a class="code hl_function" href="classL4Re_1_1Util_1_1Cap__alloc__base.html#ab5359b2946b02fd6f364d6d66c2f4ae4">alloc</a>() noexcept</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> { <span class="keywordflow">return</span> <a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<T></a>(<a class="code hl_function" href="classL4Re_1_1Util_1_1Cap__alloc__base.html#ab5359b2946b02fd6f364d6d66c2f4ae4">alloc</a>().cap()); }</div>
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</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> State is_allocated(<a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<void></a> c) <span class="keyword">const</span> <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> {</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordtype">long</span> idx = (c.cap() >> <a class="code hl_enumvalue" href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879ac13ad59620aeba353454514a42950a85">L4_CAP_SHIFT</a>);</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">if</span> (idx < _bias)</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">return</span> Unknown;</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> idx -= _bias;</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span> (idx >= _items.size())</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> Unknown;</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> </div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordflow">return</span> _items.is_allocated(idx) ? Allocated : Free;</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> }</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span></div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">template</span>< <span class="keyword">typename</span> T></div>
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<div class="foldopen" id="foldopen00081" data-start="{" data-end="}">
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"><a class="line" href="classL4Re_1_1Util_1_1Cap__alloc__base.html#afe4cbd695e9050e2827d17e7e960e67d"> 81</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classL4Re_1_1Util_1_1Cap__alloc__base.html#afe4cbd695e9050e2827d17e7e960e67d">free</a>(<a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<T></a> <span class="keyword">const</span> &cap, <a class="code hl_typedef" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> task = <a class="code hl_enumvalue" href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879aff9320ed307e76cebfca6c2871136102">L4_INVALID_CAP</a>,</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a> unmap_flags = <a class="code hl_enumvalue" href="group__l4__task__api.html#gga3c24e67b976870a3e911c43c83382f66aa85d4766b182308e5847d543e7d59055">L4_FP_ALL_SPACES</a>) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> {</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordtype">long</span> idx = (cap.cap() >> <a class="code hl_enumvalue" href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879ac13ad59620aeba353454514a42950a85">L4_CAP_SHIFT</a>);</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordflow">if</span> (idx < _bias)</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> idx -= _bias;</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordflow">if</span> (idx >= _items.size())</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <a class="code hl_define" href="sys_2assert_8h.html#a01be6aeab808dab408e341a7a8bd17a6">l4_assert</a>(_items.is_allocated(idx));</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> </div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="group__l4__cap__api.html#ga539da15c2a1be4803ed7a3f3a5742194">l4_is_valid_cap</a>(task))</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <a class="code hl_function" href="group__l4__task__api.html#gaa5558855716b35c1790b61249cf2974b">l4_task_unmap</a>(task, cap.fpage(), unmap_flags | 2);</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> _items.free(idx);</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> }</div>
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</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// since we have no counters assume counter always > 0</span></div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keywordtype">void</span> take(<a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<void></a>) <span class="keyword">noexcept</span> {}</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordtype">bool</span> release(<a class="code hl_class" href="classL4_1_1Cap.html">L4::Cap<void></a>, <a class="code hl_typedef" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> <span class="comment">/*task*/</span> = <a class="code hl_enumvalue" href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879aff9320ed307e76cebfca6c2871136102">L4_INVALID_CAP</a>,</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordtype">unsigned</span> <span class="comment">/*unmap_flags*/</span> = <a class="code hl_enumvalue" href="group__l4__task__api.html#gga3c24e67b976870a3e911c43c83382f66aa85d4766b182308e5847d543e7d59055">L4_FP_ALL_SPACES</a>) <span class="keyword">noexcept</span></div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> { <span class="keywordflow">return</span> <span class="keyword">false</span>; }</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordtype">long</span> last() noexcept</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> {</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">return</span> _items.size() + _bias - 1;</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> }</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span>};</div>
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</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="keyword">template</span>< <span class="keywordtype">long</span> Size ></div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="keyword">class </span>Cap_alloc : <span class="keyword">public</span> <a class="code hl_class" href="classL4Re_1_1Util_1_1Cap__alloc__base.html">Cap_alloc_base</a></div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span>{</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">typename</span> Bitmap_base::Word<Size>::Type _bits[Bitmap_base::Word<Size>::Size];</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> </div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">explicit</span> Cap_alloc(<span class="keywordtype">long</span> bias = 0) noexcept</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> : Cap_alloc_base(Size, _bits, bias) {}</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span>};</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> </div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span>}</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span>}</div>
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<div class="ttc" id="acapability_html"><div class="ttname"><a href="capability.html">capability</a></div><div class="ttdoc">L4::Cap related definitions.</div></div>
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<div class="ttc" id="aclassL4Re_1_1Util_1_1Cap__alloc__base_html"><div class="ttname"><a href="classL4Re_1_1Util_1_1Cap__alloc__base.html">L4Re::Util::Cap_alloc_base</a></div><div class="ttdoc">Capability allocator.</div><div class="ttdef"><b>Definition</b> <a href="#l00028">bitmap_cap_alloc:29</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Util_1_1Cap__alloc__base_html_ab5359b2946b02fd6f364d6d66c2f4ae4"><div class="ttname"><a href="classL4Re_1_1Util_1_1Cap__alloc__base.html#ab5359b2946b02fd6f364d6d66c2f4ae4">L4Re::Util::Cap_alloc_base::alloc</a></div><div class="ttdeci">L4::Cap< T > alloc() noexcept</div><div class="ttdoc">Allocate a capability slot.</div><div class="ttdef"><b>Definition</b> <a href="#l00060">bitmap_cap_alloc:60</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Util_1_1Cap__alloc__base_html_afe4cbd695e9050e2827d17e7e960e67d"><div class="ttname"><a href="classL4Re_1_1Util_1_1Cap__alloc__base.html#afe4cbd695e9050e2827d17e7e960e67d">L4Re::Util::Cap_alloc_base::free</a></div><div class="ttdeci">void free(L4::Cap< T > const &cap, l4_cap_idx_t task=L4_INVALID_CAP, l4_umword_t unmap_flags=L4_FP_ALL_SPACES) noexcept</div><div class="ttdoc">Free a capability slot.</div><div class="ttdef"><b>Definition</b> <a href="#l00081">bitmap_cap_alloc:81</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Util_1_1Item__alloc__base_html"><div class="ttname"><a href="classL4Re_1_1Util_1_1Item__alloc__base.html">L4Re::Util::Item_alloc_base</a></div><div class="ttdoc">Item allocator.</div><div class="ttdef"><b>Definition</b> <a href="item__alloc_source.html#l00027">item_alloc:28</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap__base_html_ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a"><div class="ttname"><a href="classL4_1_1Cap__base.html#ac74dbedb04347341ba30ece923c12fe7af425c8e16afcd760ecb1f30bd6c1437a">L4::Cap_base::Invalid</a></div><div class="ttdeci">@ Invalid</div><div class="ttdoc">Invalid capability selector.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00042">capability.h:42</a></div></div>
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<div class="ttc" id="aclassL4_1_1Cap_html"><div class="ttname"><a href="classL4_1_1Cap.html">L4::Cap</a></div><div class="ttdoc">C++ interface for capabilities.</div><div class="ttdef"><b>Definition</b> <a href="capability_8h_source.html#l00223">capability.h:224</a></div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_ga1c2c4b333f75b1d05b59855910f2b9cb"><div class="ttname"><a href="group__l4__basic__types.html#ga1c2c4b333f75b1d05b59855910f2b9cb">l4_umword_t</a></div><div class="ttdeci">unsigned long l4_umword_t</div><div class="ttdoc">Unsigned machine word.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00040">l4int.h:40</a></div></div>
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<div class="ttc" id="agroup__l4__cap__api_html_ga1445e923ce73029130d569d6e69a4dd8"><div class="ttname"><a href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></div><div class="ttdeci">unsigned long l4_cap_idx_t</div><div class="ttdoc">Capability selector type.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2types_8h_source.html#l00336">types.h:336</a></div></div>
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<div class="ttc" id="agroup__l4__cap__api_html_ga539da15c2a1be4803ed7a3f3a5742194"><div class="ttname"><a href="group__l4__cap__api.html#ga539da15c2a1be4803ed7a3f3a5742194">l4_is_valid_cap</a></div><div class="ttdeci">unsigned l4_is_valid_cap(l4_cap_idx_t c) L4_NOTHROW</div><div class="ttdoc">Test if a capability selector is a valid selector.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2types_8h_source.html#l00393">types.h:393</a></div></div>
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<div class="ttc" id="agroup__l4__cap__api_html_ggafee0421c2fe0e5cfc59f17f16ea10879ac13ad59620aeba353454514a42950a85"><div class="ttname"><a href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879ac13ad59620aeba353454514a42950a85">L4_CAP_SHIFT</a></div><div class="ttdeci">@ L4_CAP_SHIFT</div><div class="ttdoc">Capability index shift.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00142">consts.h:142</a></div></div>
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<div class="ttc" id="agroup__l4__cap__api_html_ggafee0421c2fe0e5cfc59f17f16ea10879aff9320ed307e76cebfca6c2871136102"><div class="ttname"><a href="group__l4__cap__api.html#ggafee0421c2fe0e5cfc59f17f16ea10879aff9320ed307e76cebfca6c2871136102">L4_INVALID_CAP</a></div><div class="ttdeci">@ L4_INVALID_CAP</div><div class="ttdoc">Invalid capability selector.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00153">consts.h:153</a></div></div>
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<div class="ttc" id="agroup__l4__task__api_html_gaa5558855716b35c1790b61249cf2974b"><div class="ttname"><a href="group__l4__task__api.html#gaa5558855716b35c1790b61249cf2974b">l4_task_unmap</a></div><div class="ttdeci">l4_msgtag_t l4_task_unmap(l4_cap_idx_t task, l4_fpage_t fpage, l4_umword_t map_mask) L4_NOTHROW</div><div class="ttdoc">Revoke rights from the task.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2task_8h_source.html#l00440">task.h:440</a></div></div>
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<div class="ttc" id="agroup__l4__task__api_html_gga3c24e67b976870a3e911c43c83382f66aa85d4766b182308e5847d543e7d59055"><div class="ttname"><a href="group__l4__task__api.html#gga3c24e67b976870a3e911c43c83382f66aa85d4766b182308e5847d543e7d59055">L4_FP_ALL_SPACES</a></div><div class="ttdeci">@ L4_FP_ALL_SPACES</div><div class="ttdoc">Flag to tell the unmap operation to revoke permissions from all child mappings including the mapping ...</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00183">consts.h:183</a></div></div>
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<div class="ttc" id="aitem__alloc_html"><div class="ttname"><a href="item__alloc.html">item_alloc</a></div><div class="ttdoc">Item allocator.</div></div>
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<div class="ttc" id="al4_2sys_2task_8h_html"><div class="ttname"><a href="l4_2sys_2task_8h.html">task.h</a></div><div class="ttdoc">Common task related definitions.</div></div>
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<div class="ttc" id="anamespaceL4Re_1_1Util_html"><div class="ttname"><a href="namespaceL4Re_1_1Util.html">L4Re::Util</a></div><div class="ttdoc">Documentation of the L4 Runtime Environment utility functionality in C++.</div><div class="ttdef"><b>Definition</b> <a href="pkg_2l4re-core_2l4re_2doc_2l4re_8dox_source.html#l00021">l4re.dox:21</a></div></div>
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<div class="ttc" id="anamespaceL4Re_html"><div class="ttname"><a href="namespaceL4Re.html">L4Re</a></div><div class="ttdoc">L4Re C++ Interfaces.</div><div class="ttdef"><b>Definition</b> <a href="cmd__control_source.html#l00014">cmd_control:14</a></div></div>
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<div class="ttc" id="asys_2assert_8h_html"><div class="ttname"><a href="sys_2assert_8h.html">assert.h</a></div><div class="ttdoc">Low-level assert implementation.</div></div>
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<div class="ttc" id="asys_2assert_8h_html_a01be6aeab808dab408e341a7a8bd17a6"><div class="ttname"><a href="sys_2assert_8h.html#a01be6aeab808dab408e341a7a8bd17a6">l4_assert</a></div><div class="ttdeci">#define l4_assert(expr)</div><div class="ttdoc">Low-level assert.</div><div class="ttdef"><b>Definition</b> <a href="sys_2assert_8h_source.html#l00032">assert.h:32</a></div></div>
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<li class="navelem"><b>l4</b></li><li class="navelem"><b>re</b></li><li class="navelem"><b>util</b></li><li class="navelem"><a href="bitmap__cap__alloc.html">bitmap_cap_alloc</a></li>
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