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66 <h1>Source code for nepi.resources.linux.ccn.ccnping</h1><div class="highlight"><pre>
67 <span class="c">#</span>
68 <span class="c"># NEPI, a framework to manage network experiments</span>
69 <span class="c"># Copyright (C) 2013 INRIA</span>
70 <span class="c">#</span>
71 <span class="c"># This program is free software: you can redistribute it and/or modify</span>
72 <span class="c"># it under the terms of the GNU General Public License version 2 as</span>
73 <span class="c"># published by the Free Software Foundation;</span>
74 <span class="c">#</span>
75 <span class="c"># This program is distributed in the hope that it will be useful,</span>
76 <span class="c"># but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
77 <span class="c"># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
78 <span class="c"># GNU General Public License for more details.</span>
79 <span class="c">#</span>
80 <span class="c"># You should have received a copy of the GNU General Public License</span>
81 <span class="c"># along with this program. If not, see <http://www.gnu.org/licenses/>.</span>
82 <span class="c">#</span>
83 <span class="c"># Author: Alina Quereilhac <alina.quereilhac@inria.fr></span>
85 <span class="kn">from</span> <span class="nn">nepi.execution.attribute</span> <span class="kn">import</span> <span class="n">Attribute</span><span class="p">,</span> <span class="n">Flags</span><span class="p">,</span> <span class="n">Types</span>
86 <span class="kn">from</span> <span class="nn">nepi.execution.resource</span> <span class="kn">import</span> <span class="n">ResourceManager</span><span class="p">,</span> <span class="n">clsinit_copy</span><span class="p">,</span> \
87 <span class="n">ResourceState</span>
88 <span class="kn">from</span> <span class="nn">nepi.resources.linux.ccn.ccnpingserver</span> <span class="kn">import</span> <span class="n">LinuxCCNPingServer</span>
89 <span class="kn">from</span> <span class="nn">nepi.util.timefuncs</span> <span class="kn">import</span> <span class="n">tnow</span><span class="p">,</span> <span class="n">tdiffsec</span>
91 <span class="kn">import</span> <span class="nn">os</span>
93 <span class="nd">@clsinit_copy</span>
94 <div class="viewcode-block" id="LinuxCCNPing"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.ccnping.LinuxCCNPing">[docs]</a><span class="k">class</span> <span class="nc">LinuxCCNPing</span><span class="p">(</span><span class="n">LinuxCCNPingServer</span><span class="p">):</span>
95 <span class="n">_rtype</span> <span class="o">=</span> <span class="s">"linux::CCNPing"</span>
97 <span class="nd">@classmethod</span>
98 <span class="k">def</span> <span class="nf">_register_attributes</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
99 <span class="n">interval</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"i"</span><span class="p">,</span>
100 <span class="s">"Set ping interval in seconds (minimum 0.10 second) "</span><span class="p">,</span>
101 <span class="nb">type</span> <span class="o">=</span> <span class="n">Types</span><span class="o">.</span><span class="n">Integer</span><span class="p">,</span>
102 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
104 <span class="n">count</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"c"</span><span class="p">,</span>
105 <span class="s">"Total number of pings"</span><span class="p">,</span>
106 <span class="nb">type</span> <span class="o">=</span> <span class="n">Types</span><span class="o">.</span><span class="n">Double</span><span class="p">,</span>
107 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
109 <span class="n">number</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"n"</span><span class="p">,</span>
110 <span class="s">"Set the starting number, the number is incremented by 1 after each Interest "</span><span class="p">,</span>
111 <span class="nb">type</span> <span class="o">=</span> <span class="n">Types</span><span class="o">.</span><span class="n">Integer</span><span class="p">,</span>
112 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
114 <span class="n">prefix</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">"prefix"</span><span class="p">,</span>
115 <span class="s">"Prefix to serve content (e.g. ccnx:/name/prefix)"</span><span class="p">,</span>
116 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
118 <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">interval</span><span class="p">)</span>
119 <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">count</span><span class="p">)</span>
120 <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">number</span><span class="p">)</span>
121 <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">prefix</span><span class="p">)</span>
123 <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ec</span><span class="p">,</span> <span class="n">guid</span><span class="p">):</span>
124 <span class="nb">super</span><span class="p">(</span><span class="n">LinuxCCNPing</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="n">ec</span><span class="p">,</span> <span class="n">guid</span><span class="p">)</span>
125 <span class="bp">self</span><span class="o">.</span><span class="n">_home</span> <span class="o">=</span> <span class="s">"ccnping-</span><span class="si">%s</span><span class="s">"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">guid</span>
127 <span class="nd">@property</span>
128 <div class="viewcode-block" id="LinuxCCNPing.ccnpingserver"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.ccnping.LinuxCCNPing.ccnpingserver">[docs]</a> <span class="k">def</span> <span class="nf">ccnpingserver</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
129 <span class="n">ccnpingserver</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_connected</span><span class="p">(</span><span class="n">LinuxCCNPingServer</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
130 <span class="k">if</span> <span class="n">ccnpingserver</span><span class="p">:</span> <span class="k">return</span> <span class="n">ccnpingserver</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
131 <span class="k">return</span> <span class="bp">None</span>
133 <div class="viewcode-block" id="LinuxCCNPing.do_start"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.ccnping.LinuxCCNPing.do_start">[docs]</a> <span class="k">def</span> <span class="nf">do_start</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
134 <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">ccnpingserver</span> <span class="ow">or</span> \
135 <span class="bp">self</span><span class="o">.</span><span class="n">ccnpingserver</span><span class="o">.</span><span class="n">state</span> <span class="o"><</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">STARTED</span><span class="p">:</span>
136 <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s">"---- RESCHEDULING START---- ccnpingserver state </span><span class="si">%s</span><span class="s"> "</span> <span class="o">%</span> \
137 <span class="bp">self</span><span class="o">.</span><span class="n">ccnpingserver</span><span class="o">.</span><span class="n">state</span> <span class="p">)</span>
138 <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">schedule</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">reschedule_delay</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">start</span><span class="p">)</span>
139 <span class="k">else</span><span class="p">:</span>
140 <span class="nb">super</span><span class="p">(</span><span class="n">LinuxCCNPing</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">do_start</span><span class="p">()</span>
142 <span class="nd">@property</span>
143 <span class="k">def</span> <span class="nf">_start_command</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
144 <span class="n">args</span> <span class="o">=</span> <span class="p">[]</span>
145 <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"ccnping"</span><span class="p">)</span>
146 <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"prefix"</span><span class="p">))</span>
147 <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"c"</span><span class="p">):</span>
148 <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-c </span><span class="si">%d</span><span class="s">"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"c"</span><span class="p">))</span>
149 <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"n"</span><span class="p">):</span>
150 <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-n </span><span class="si">%d</span><span class="s">"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"n"</span><span class="p">))</span>
151 <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"i"</span><span class="p">):</span>
152 <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">"-i </span><span class="si">%.2f</span><span class="s">"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">"i"</span><span class="p">))</span>
154 <span class="n">command</span> <span class="o">=</span> <span class="s">" "</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">args</span><span class="p">)</span>
156 <span class="k">return</span> <span class="n">command</span>
158 <div class="viewcode-block" id="LinuxCCNPing.valid_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.linux.ccn.html#nepi.resources.linux.ccn.ccnping.LinuxCCNPing.valid_connection">[docs]</a> <span class="k">def</span> <span class="nf">valid_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">guid</span><span class="p">):</span>
159 <span class="c"># TODO: Validate!</span>
160 <span class="k">return</span> <span class="bp">True</span>
161 </pre></div></div></div>
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