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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include <<a class="code" href="env.html">l4/re/env</a>></span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include <<a class="code" href="dataspace.html">l4/re/dataspace</a>></span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include <<a class="code" href="error__helper.html">l4/re/error_helper</a>></span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include <<a class="code" href="util_2cap__alloc.html">l4/re/util/cap_alloc</a>></span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include <l4/virtio-net-switch/stats.h></span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="keyword">class </span>Switch_statistics</div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span>{</div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> L4Re::Util::Ref_cap<L4Re::Dataspace>::Cap _ds;</div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> Virtio_net_switch::Statistics *_stats;</div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> <span class="keywordtype">bool</span> _initialized = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> Switch_statistics() {}</div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> ~Switch_statistics()</div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> {</div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> <span class="keywordflow">if</span> (_initialized)</div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <a class="code hl_function" href="classL4Re_1_1Env.html#a2706ca11e70845b0a29a5646c9fd54bc">L4Re::Env::env</a>()-><a class="code hl_function" href="classL4Re_1_1Env.html#aa5e8a6cc32d4c0741d929eb2ffbac7dc">rm</a>()->detach(<span class="keyword">reinterpret_cast<</span><a class="code hl_typedef" href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a><span class="keyword">></span>(_stats), 0);</div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</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> <a class="code hl_typedef" href="group__l4__basic__types.html#ga08c1e83a068ded7add134b188cd44967">l4_size_t</a> _size;</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="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> Virtio_net_switch::Statistics *stats()</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> {</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordflow">if</span> (_initialized)</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keywordflow">return</span> _stats;</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">throw</span> L4::Runtime_error(-<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9ad0af5659bdc7c7a0b3ac3a749d0da8e7">L4_EAGAIN</a>, <span class="stringliteral">"Statistics not set up."</span>);</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> }</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">static</span> Switch_statistics& get_instance()</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> {</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">static</span> Switch_statistics instance;</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">return</span> instance;</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> </div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordtype">void</span> initialize(<a class="code hl_typedef" href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a> num_max_ports)</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> _size = <a class="code hl_function" href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a>(<span class="keyword">sizeof</span>(Virtio_net_switch::Statistics)</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> + <span class="keyword">sizeof</span>(Virtio_net_switch::Port_statistics) * num_max_ports);</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordtype">void</span> *addr = malloc(_size);</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">if</span> (!addr)</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">throw</span> L4::Runtime_error(-<a class="code hl_enumvalue" href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27">L4_ENOMEM</a>,</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="stringliteral">"Could not allocate statistics memory."</span>);</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> memset(addr, 0, _size);</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> _stats = <span class="keyword">reinterpret_cast<</span>Virtio_net_switch::Statistics *<span class="keyword">></span>(addr);</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> _initialized = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> _stats->max_ports = num_max_ports;</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> Virtio_net_switch::Port_statistics *</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> allocate_port_statistics(<span class="keywordtype">char</span> <span class="keyword">const</span>* name)</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> {</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < _stats->max_ports; ++i)</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> {</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">if</span> (!_stats->port_stats[i].in_use)</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> {</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> memset(<span class="keyword">reinterpret_cast<</span><span class="keywordtype">void</span>*<span class="keyword">></span>(&_stats->port_stats[i]), 0,</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keyword">sizeof</span>(Virtio_net_switch::Port_statistics));</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> _stats->port_stats[i].in_use = 1;</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordtype">size_t</span> len = std::min(strlen(name), <span class="keyword">sizeof</span>(_stats->port_stats[i].name) - 1);</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> memcpy(_stats->port_stats[i].name, name, len);</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> _stats->port_stats[i].name[len] = <span class="charliteral">'\0'</span>;</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> _stats->age++;</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">return</span> &_stats->port_stats[i];</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> }</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> }</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="keyword">inline</span> <a class="code hl_typedef" href="group__l4__basic__types.html#ga08c1e83a068ded7add134b188cd44967">l4_size_t</a> size()</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> { <span class="keywordflow">return</span> _size; }</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="l00077" name="l00077"></a><span class="lineno"> 77</span> Switch_statistics(Switch_statistics <span class="keyword">const</span>&) = <span class="keyword">delete</span>;</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordtype">void</span> operator=(Switch_statistics <span class="keyword">const</span> &) = <span class="keyword">delete</span>;</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span>};</div>
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<div class="ttc" id="aclassL4Re_1_1Env_html_a2706ca11e70845b0a29a5646c9fd54bc"><div class="ttname"><a href="classL4Re_1_1Env.html#a2706ca11e70845b0a29a5646c9fd54bc">L4Re::Env::env</a></div><div class="ttdeci">static Env const * env() noexcept</div><div class="ttdoc">Returns the initial environment for the current task.</div><div class="ttdef"><b>Definition</b> <a href="env_source.html#l00096">env:96</a></div></div>
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<div class="ttc" id="aclassL4Re_1_1Env_html_aa5e8a6cc32d4c0741d929eb2ffbac7dc"><div class="ttname"><a href="classL4Re_1_1Env.html#aa5e8a6cc32d4c0741d929eb2ffbac7dc">L4Re::Env::rm</a></div><div class="ttdeci">L4::Cap< Rm > rm() const noexcept</div><div class="ttdoc">Object-capability to the region map.</div><div class="ttdef"><b>Definition</b> <a href="env_source.html#l00120">env:120</a></div></div>
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<div class="ttc" id="adataspace_html"><div class="ttname"><a href="dataspace.html">dataspace</a></div><div class="ttdoc">Dataspace interface.</div></div>
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<div class="ttc" id="aenv_html"><div class="ttname"><a href="env.html">env</a></div><div class="ttdoc">Environment interface.</div></div>
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<div class="ttc" id="aerror__helper_html"><div class="ttname"><a href="error__helper.html">error_helper</a></div><div class="ttdoc">Error helper.</div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_ga08c1e83a068ded7add134b188cd44967"><div class="ttname"><a href="group__l4__basic__types.html#ga08c1e83a068ded7add134b188cd44967">l4_size_t</a></div><div class="ttdeci">unsigned int l4_size_t</div><div class="ttdoc">Unsigned size type.</div><div class="ttdef"><b>Definition</b> <a href="arm_2l4_2sys_2l4int_8h_source.html#l00024">l4int.h:24</a></div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_ga4087b991c40c0d2fcde9ca331049a4d4"><div class="ttname"><a href="group__l4__basic__types.html#ga4087b991c40c0d2fcde9ca331049a4d4">l4_addr_t</a></div><div class="ttdeci">unsigned long l4_addr_t</div><div class="ttdoc">Address type.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00034">l4int.h:34</a></div></div>
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<div class="ttc" id="agroup__l4__basic__types_html_gaf3331c485014bd12a9e4f9d27a55e689"><div class="ttname"><a href="group__l4__basic__types.html#gaf3331c485014bd12a9e4f9d27a55e689">l4_uint64_t</a></div><div class="ttdeci">unsigned long long l4_uint64_t</div><div class="ttdoc">Unsigned 64bit value.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2l4int_8h_source.html#l00031">l4int.h:31</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9ad0af5659bdc7c7a0b3ac3a749d0da8e7"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9ad0af5659bdc7c7a0b3ac3a749d0da8e7">L4_EAGAIN</a></div><div class="ttdeci">@ L4_EAGAIN</div><div class="ttdoc">Try again.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00038">err.h:38</a></div></div>
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<div class="ttc" id="agroup__l4__error__api_html_ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27"><div class="ttname"><a href="group__l4__error__api.html#ggab4c8abc71ffa221a25c1ca5840a354f9af7f5d38973fbf298613b03a088541e27">L4_ENOMEM</a></div><div class="ttdeci">@ L4_ENOMEM</div><div class="ttdoc">No memory.</div><div class="ttdef"><b>Definition</b> <a href="err_8h_source.html#l00039">err.h:39</a></div></div>
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<div class="ttc" id="agroup__l4__memory__api_html_ga96e3b2d8e69308aecbb11d1d24f61662"><div class="ttname"><a href="group__l4__memory__api.html#ga96e3b2d8e69308aecbb11d1d24f61662">l4_round_page</a></div><div class="ttdeci">l4_addr_t l4_round_page(l4_addr_t address) L4_NOTHROW</div><div class="ttdoc">Round address up to the next page.</div><div class="ttdef"><b>Definition</b> <a href="l4_2sys_2consts_8h_source.html#l00473">consts.h:473</a></div></div>
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<div class="ttc" id="autil_2cap__alloc_html"><div class="ttname"><a href="util_2cap__alloc.html">cap_alloc</a></div><div class="ttdoc">Capability allocator.</div></div>
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