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  85. <li><a class="reference internal" href="#">Welcome to task’s documentation!</a><ul>

  86. <li><a class="reference internal" href="#task-task-module">task (Task Module)</a></li>

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  155.   <div class="section" id="module-task">

  156. <span id="welcome-to-task-s-documentation"></span><h1>Welcome to task’s documentation!<a class="headerlink" href="#module-task" title="Permalink to this headline">¶</a></h1>

  157. <div class="section" id="task-task-module">

  158. <h2>task (Task Module)<a class="headerlink" href="#task-task-module" title="Permalink to this headline">¶</a></h2>

  159. <p><strong>Author:</strong></p>

  160. <ul class="simple">

  161. <li>Dirk Alders &lt;<a class="reference external" href="mailto:sudo-dirk&#37;&#52;&#48;mount-mockery&#46;de">sudo-dirk<span>&#64;</span>mount-mockery<span>&#46;</span>de</a>&gt;</li>

  162. </ul>

  163. <p><strong>Description:</strong></p>

  164. <blockquote>

  165. <div>This Module supports helpfull classes for queues, tasks, …</div></blockquote>

  166. <p><strong>Submodules:</strong></p>

  167. <ul class="simple">

  168. <li><a class="reference internal" href="#task.crontab" title="task.crontab"><code class="xref py py-class docutils literal notranslate"><span class="pre">task.crontab</span></code></a></li>

  169. <li><a class="reference internal" href="#task.delayed" title="task.delayed"><code class="xref py py-class docutils literal notranslate"><span class="pre">task.delayed</span></code></a></li>

  170. <li><a class="reference internal" href="#task.periodic" title="task.periodic"><code class="xref py py-class docutils literal notranslate"><span class="pre">task.periodic</span></code></a></li>

  171. <li><a class="reference internal" href="#task.queue" title="task.queue"><code class="xref py py-class docutils literal notranslate"><span class="pre">task.queue</span></code></a></li>

  172. <li><a class="reference internal" href="#task.threaded_queue" title="task.threaded_queue"><code class="xref py py-class docutils literal notranslate"><span class="pre">task.threaded_queue</span></code></a></li>

  173. </ul>

  174. <p><strong>Unittest:</strong></p>

  175. <blockquote>

  176. <div>See also the <a class="reference download internal" download="" href="_downloads/89eb74c94e7790229553fd55e6dfe3a3/unittest.pdf"><code class="xref download docutils literal notranslate"><span class="pre">unittest</span></code></a> documentation.</div></blockquote>

  177. <p><strong>Module Documentation:</strong></p>

  178. <dl class="class">

  179. <dt id="task.crontab">

  180. <em class="property">class </em><code class="descclassname">task.</code><code class="descname">crontab</code><span class="sig-paren">(</span><em>accuracy=30</em><span class="sig-paren">)</span><a class="headerlink" href="#task.crontab" title="Permalink to this definition">¶</a></dt>

  181. <dd><p>Class to execute a callback at the specified time conditions. See also parent <a class="reference internal" href="#task.periodic" title="task.periodic"><code class="xref py py-class docutils literal notranslate"><span class="pre">periodic</span></code></a>.</p>

  182. <table class="docutils field-list" frame="void" rules="none">

  183. <col class="field-name" />

  184. <col class="field-body" />

  185. <tbody valign="top">

  186. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>accuracy</strong> (<em>float</em>) – Repeat time in seconds for background task checking event triggering. This time is the maximum delay between specified time condition and the execution.</td>

  187. </tr>

  188. </tbody>

  189. </table>

  190. <p><strong>Example:</strong></p>

  191. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/usr/bin/env python</span>

  192. <span class="c1"># -*- coding: UTF-8 -*-</span>

  193. 

  194. <span class="kn">import</span> <span class="nn">sys</span>

  195. <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s1">&#39;../..&#39;</span><span class="p">)</span>

  196. <span class="kn">import</span> <span class="nn">task</span>

  197. <span class="kn">import</span> <span class="nn">time</span>

  198. 

  199. 

  200. <span class="k">def</span> <span class="nf">print_localtime</span><span class="p">(</span><span class="n">cj</span><span class="p">):</span>

  201.     <span class="nb">print</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">localtime</span><span class="p">())</span>

  202. 

  203. 

  204. <span class="n">ct</span> <span class="o">=</span> <span class="n">task</span><span class="o">.</span><span class="n">crontab</span><span class="p">(</span><span class="n">accuracy</span><span class="o">=</span><span class="mi">7</span><span class="p">)</span>

  205. <span class="n">minute</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s1">&#39;%M&#39;</span><span class="p">))</span>

  206. <span class="n">ct</span><span class="o">.</span><span class="n">add_cronjob</span><span class="p">([</span><span class="n">minute</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">minute</span> <span class="o">+</span> <span class="mi">3</span><span class="p">],</span> <span class="n">task</span><span class="o">.</span><span class="n">crontab</span><span class="o">.</span><span class="n">ANY</span><span class="p">,</span> <span class="n">task</span><span class="o">.</span><span class="n">crontab</span><span class="o">.</span><span class="n">ANY</span><span class="p">,</span> <span class="n">task</span><span class="o">.</span><span class="n">crontab</span><span class="o">.</span><span class="n">ANY</span><span class="p">,</span> <span class="n">task</span><span class="o">.</span><span class="n">crontab</span><span class="o">.</span><span class="n">ANY</span><span class="p">,</span> <span class="n">print_localtime</span><span class="p">)</span>

  207. <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;Cronjob added for Minute: </span><span class="si">%02d</span><span class="s1">, </span><span class="si">%02d</span><span class="se">\n</span><span class="s1">--------------------------------</span><span class="se">\n</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">minute</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">minute</span> <span class="o">+</span> <span class="mi">3</span><span class="p">))</span>

  208. <span class="n">ct</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>

  209. <span class="k">try</span><span class="p">:</span>

  210.     <span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mi">195</span><span class="p">)</span>

  211.     <span class="n">ct</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>

  212.     <span class="n">ct</span><span class="o">.</span><span class="n">join</span><span class="p">()</span>

  213. <span class="k">finally</span><span class="p">:</span>

  214.     <span class="n">ct</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>

  215. </pre></div>

  216. </div>

  217. <p>Will result to the following output:</p>

  218. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">Cronjob</span> <span class="n">added</span> <span class="k">for</span> <span class="n">Minute</span><span class="p">:</span> <span class="mi">45</span><span class="p">,</span> <span class="mi">47</span>

  219. <span class="o">--------------------------------</span>

  220. 

  221. <span class="n">time</span><span class="o">.</span><span class="n">struct_time</span><span class="p">(</span><span class="n">tm_year</span><span class="o">=</span><span class="mi">2021</span><span class="p">,</span> <span class="n">tm_mon</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">tm_mday</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">tm_hour</span><span class="o">=</span><span class="mi">17</span><span class="p">,</span> <span class="n">tm_min</span><span class="o">=</span><span class="mi">45</span><span class="p">,</span> <span class="n">tm_sec</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">tm_wday</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">tm_yday</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">tm_isdst</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>

  222. <span class="n">time</span><span class="o">.</span><span class="n">struct_time</span><span class="p">(</span><span class="n">tm_year</span><span class="o">=</span><span class="mi">2021</span><span class="p">,</span> <span class="n">tm_mon</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">tm_mday</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">tm_hour</span><span class="o">=</span><span class="mi">17</span><span class="p">,</span> <span class="n">tm_min</span><span class="o">=</span><span class="mi">47</span><span class="p">,</span> <span class="n">tm_sec</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">tm_wday</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">tm_yday</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">tm_isdst</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>

  223. </pre></div>

  224. </div>

  225. <dl class="attribute">

  226. <dt id="task.crontab.ANY">

  227. <code class="descname">ANY</code><em class="property"> = '*'</em><a class="headerlink" href="#task.crontab.ANY" title="Permalink to this definition">¶</a></dt>

  228. <dd><p>Constant for matching every condition.</p>

  229. </dd></dl>

  230. 

  231. <dl class="method">

  232. <dt id="task.crontab.add_cronjob">

  233. <code class="descname">add_cronjob</code><span class="sig-paren">(</span><em>minute</em>, <em>hour</em>, <em>day_of_month</em>, <em>month</em>, <em>day_of_week</em>, <em>callback</em>, <em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#task.crontab.add_cronjob" title="Permalink to this definition">¶</a></dt>

  234. <dd><p>This Method adds a cronjob to be executed.</p>

  235. <table class="docutils field-list" frame="void" rules="none">

  236. <col class="field-name" />

  237. <col class="field-body" />

  238. <tbody valign="top">

  239. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">

  240. <li><strong>minute</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Minute for execution. Either 0…59, [0…59, 0…59, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Minute.</li>

  241. <li><strong>hour</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Hour for execution. Either 0…23, [0…23, 0…23, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Hour.</li>

  242. <li><strong>day_of_month</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Day of Month for execution. Either 0…31, [0…31, 0…31, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Day of Month.</li>

  243. <li><strong>month</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Month for execution. Either 0…12, [0…12, 0…12, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Month.</li>

  244. <li><strong>day_of_week</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Day of Week for execution. Either 0…6, [0…6, 0…6, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Day of Week.</li>

  245. <li><strong>callback</strong> (<em>func</em>) – The callback to be executed. The instance of <a class="reference internal" href="#task.crontab.cronjob" title="task.crontab.cronjob"><code class="xref py py-class docutils literal notranslate"><span class="pre">cronjob</span></code></a> will be given as the first, args and kwargs as the following parameters.</li>

  246. </ul>

  247. </td>

  248. </tr>

  249. </tbody>

  250. </table>

  251. <div class="admonition note">

  252. <p class="first admonition-title">Note</p>

  253. <p class="last">The <code class="docutils literal notranslate"><span class="pre">callback</span></code> will be executed with it’s instance of <a class="reference internal" href="#task.crontab.cronjob" title="task.crontab.cronjob"><code class="xref py py-class docutils literal notranslate"><span class="pre">cronjob</span></code></a> as the first parameter.

  254. The given Arguments (<code class="xref py py-data docutils literal notranslate"><span class="pre">args</span></code>) and keyword Arguments (<code class="xref py py-data docutils literal notranslate"><span class="pre">kwargs</span></code>) will be stored in that object.</p>

  255. </div>

  256. </dd></dl>

  257. 

  258. <dl class="class">

  259. <dt id="task.crontab.cronjob">

  260. <em class="property">class </em><code class="descname">cronjob</code><span class="sig-paren">(</span><em>minute</em>, <em>hour</em>, <em>day_of_month</em>, <em>month</em>, <em>day_of_week</em>, <em>callback</em>, <em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#task.crontab.cronjob" title="Permalink to this definition">¶</a></dt>

  261. <dd><p>Class to handle cronjob parameters and cronjob changes.</p>

  262. <table class="docutils field-list" frame="void" rules="none">

  263. <col class="field-name" />

  264. <col class="field-body" />

  265. <tbody valign="top">

  266. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">

  267. <li><strong>minute</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Minute for execution. Either 0…59, [0…59, 0…59, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Minute.</li>

  268. <li><strong>hour</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Hour for execution. Either 0…23, [0…23, 0…23, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Hour.</li>

  269. <li><strong>day_of_month</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Day of Month for execution. Either 0…31, [0…31, 0…31, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Day of Month.</li>

  270. <li><strong>month</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Month for execution. Either 0…12, [0…12, 0…12, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Month.</li>

  271. <li><strong>day_of_week</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Day of Week for execution. Either 0…6, [0…6, 0…6, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Day of Week.</li>

  272. <li><strong>callback</strong> (<em>func</em>) – The callback to be executed. The instance of <code class="xref py py-class docutils literal notranslate"><span class="pre">cronjob</span></code> will be given as the first, args and kwargs as the following parameters.</li>

  273. </ul>

  274. </td>

  275. </tr>

  276. </tbody>

  277. </table>

  278. <div class="admonition note">

  279. <p class="first admonition-title">Note</p>

  280. <p class="last">This class should not be used stand alone. An instance will be created by adding a cronjob by using <a class="reference internal" href="#task.crontab.add_cronjob" title="task.crontab.add_cronjob"><code class="xref py py-func docutils literal notranslate"><span class="pre">crontab.add_cronjob()</span></code></a>.</p>

  281. </div>

  282. <dl class="class">

  283. <dt id="task.crontab.cronjob.all_match">

  284. <em class="property">class </em><code class="descname">all_match</code><a class="headerlink" href="#task.crontab.cronjob.all_match" title="Permalink to this definition">¶</a></dt>

  285. <dd><p>Universal set - match everything</p>

  286. </dd></dl>

  287. 

  288. <dl class="method">

  289. <dt id="task.crontab.cronjob.cron_execution">

  290. <code class="descname">cron_execution</code><span class="sig-paren">(</span><em>tm</em><span class="sig-paren">)</span><a class="headerlink" href="#task.crontab.cronjob.cron_execution" title="Permalink to this definition">¶</a></dt>

  291. <dd><p>This Methods executes the Cron-Callback, if a execution is needed for the given time (depending on the parameters on initialisation)</p>

  292. <table class="docutils field-list" frame="void" rules="none">

  293. <col class="field-name" />

  294. <col class="field-body" />

  295. <tbody valign="top">

  296. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>tm</strong> (<em>int</em>) – (Current) Time Value to be checked. The time needs to be given in seconds since 1970 (e.g. generated by int(time.time())).</td>

  297. </tr>

  298. </tbody>

  299. </table>

  300. </dd></dl>

  301. 

  302. <dl class="method">

  303. <dt id="task.crontab.cronjob.set_trigger_conditions">

  304. <code class="descname">set_trigger_conditions</code><span class="sig-paren">(</span><em>minute=None</em>, <em>hour=None</em>, <em>day_of_month=None</em>, <em>month=None</em>, <em>day_of_week=None</em><span class="sig-paren">)</span><a class="headerlink" href="#task.crontab.cronjob.set_trigger_conditions" title="Permalink to this definition">¶</a></dt>

  305. <dd><p>This Method changes the execution parameters.</p>

  306. <table class="docutils field-list" frame="void" rules="none">

  307. <col class="field-name" />

  308. <col class="field-body" />

  309. <tbody valign="top">

  310. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">

  311. <li><strong>minute</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Minute for execution. Either 0…59, [0…59, 0…59, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Minute.</li>

  312. <li><strong>hour</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Hour for execution. Either 0…23, [0…23, 0…23, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Hour.</li>

  313. <li><strong>day_of_month</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Day of Month for execution. Either 0…31, [0…31, 0…31, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Day of Month.</li>

  314. <li><strong>month</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Month for execution. Either 0…12, [0…12, 0…12, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Month.</li>

  315. <li><strong>day_of_week</strong> (<em>int</em><em>, </em><em>list</em><em>, </em><em>str</em>) – Day of Week for execution. Either 0…6, [0…6, 0…6, …] or <a class="reference internal" href="#task.crontab.ANY" title="task.crontab.ANY"><code class="xref py py-const docutils literal notranslate"><span class="pre">crontab.ANY</span></code></a> for every Day of Week.</li>

  316. </ul>

  317. </td>

  318. </tr>

  319. </tbody>

  320. </table>

  321. </dd></dl>

  322. 

  323. </dd></dl>

  324. 

  325. </dd></dl>

  326. 

  327. <dl class="class">

  328. <dt id="task.delayed">

  329. <em class="property">class </em><code class="descclassname">task.</code><code class="descname">delayed</code><span class="sig-paren">(</span><em>cycle_time</em>, <em>callback</em>, <em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#task.delayed" title="Permalink to this definition">¶</a></dt>

  330. <dd><p>Class to execute a callback a given time in the future. See also parent <a class="reference internal" href="#task.periodic" title="task.periodic"><code class="xref py py-class docutils literal notranslate"><span class="pre">periodic</span></code></a>.</p>

  331. <table class="docutils field-list" frame="void" rules="none">

  332. <col class="field-name" />

  333. <col class="field-body" />

  334. <tbody valign="top">

  335. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">

  336. <li><strong>time</strong> (<em>float</em>) – Delay time for execution of the given callback</li>

  337. <li><strong>callback</strong> (<em>callback</em>) – Callback to be executed</li>

  338. <li><strong>args</strong> (<em>args</em>) – Arguments to be given to callback</li>

  339. <li><strong>kwargs</strong> (<em>kwargs</em>) – Keword Arguments to be given to callback</li>

  340. </ul>

  341. </td>

  342. </tr>

  343. </tbody>

  344. </table>

  345. <p><strong>Example:</strong></p>

  346. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/usr/bin/env python</span>

  347. <span class="c1"># -*- coding: UTF-8 -*-</span>

  348. 

  349. <span class="kn">import</span> <span class="nn">sys</span>

  350. <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s1">&#39;../..&#39;</span><span class="p">)</span>

  351. <span class="kn">import</span> <span class="nn">task</span>

  352. <span class="kn">import</span> <span class="nn">time</span>

  353. 

  354. 

  355. <span class="k">def</span> <span class="nf">time_print</span><span class="p">(</span><span class="n">txt</span><span class="p">):</span>

  356.     <span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">asctime</span><span class="p">()</span> <span class="o">+</span> <span class="s1">&#39;: &#39;</span> <span class="o">+</span> <span class="n">txt</span> <span class="o">+</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="p">)</span>

  357. 

  358. 

  359. <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;task.delayed example:</span><span class="se">\n</span><span class="s2">---------------------&quot;</span><span class="p">)</span>

  360. <span class="n">dt</span> <span class="o">=</span> <span class="n">task</span><span class="o">.</span><span class="n">delayed</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="n">time_print</span><span class="p">,</span> <span class="s2">&quot;A delayed hello!&quot;</span><span class="p">)</span>

  361. <span class="n">dt</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>

  362. <span class="k">try</span><span class="p">:</span>

  363.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;starting...&quot;</span><span class="p">)</span>

  364.     <span class="n">dt</span><span class="o">.</span><span class="n">join</span><span class="p">()</span>

  365. <span class="k">finally</span><span class="p">:</span>

  366.     <span class="n">dt</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>

  367. </pre></div>

  368. </div>

  369. <p>Will result to the following output:</p>

  370. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>task.delayed example:

  371. ---------------------

  372. Thu Jan  7 17:18:01 2021: starting...

  373. Thu Jan  7 17:18:06 2021: A delayed hello!

  374. </pre></div>

  375. </div>

  376. <dl class="method">

  377. <dt id="task.delayed.run">

  378. <code class="descname">run</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.delayed.run" title="Permalink to this definition">¶</a></dt>

  379. <dd><p>This starts the timer for the delayed execution.</p>

  380. </dd></dl>

  381. 

  382. </dd></dl>

  383. 

  384. <dl class="class">

  385. <dt id="task.periodic">

  386. <em class="property">class </em><code class="descclassname">task.</code><code class="descname">periodic</code><span class="sig-paren">(</span><em>cycle_time</em>, <em>callback</em>, <em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#task.periodic" title="Permalink to this definition">¶</a></dt>

  387. <dd><p>Class to execute a callback cyclicly.</p>

  388. <table class="docutils field-list" frame="void" rules="none">

  389. <col class="field-name" />

  390. <col class="field-body" />

  391. <tbody valign="top">

  392. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">

  393. <li><strong>cycle_time</strong> (<em>float</em>) – Cycle time in seconds – callback will be executed every <em>cycle_time</em> seconds</li>

  394. <li><strong>callback</strong> (<em>callback</em>) – Callback to be executed</li>

  395. <li><strong>args</strong> (<em>args</em>) – Arguments to be given to the callback</li>

  396. <li><strong>kwargs</strong> (<em>kwargs</em>) – Keword Arguments to be given to callback</li>

  397. </ul>

  398. </td>

  399. </tr>

  400. </tbody>

  401. </table>

  402. <div class="admonition note">

  403. <p class="first admonition-title">Note</p>

  404. <p class="last">The Callback will get this instance as first argument, followed by <code class="xref py py-data docutils literal notranslate"><span class="pre">args</span></code> und <code class="xref py py-data docutils literal notranslate"><span class="pre">kwargs</span></code>.</p>

  405. </div>

  406. <p><strong>Example:</strong></p>

  407. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/usr/bin/env python</span>

  408. <span class="c1"># -*- coding: UTF-8 -*-</span>

  409. 

  410. <span class="kn">import</span> <span class="nn">sys</span>

  411. <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s1">&#39;../..&#39;</span><span class="p">)</span>

  412. <span class="kn">import</span> <span class="nn">task</span>

  413. <span class="kn">import</span> <span class="nn">time</span>

  414. 

  415. <span class="n">task_num</span> <span class="o">=</span> <span class="mi">0</span>

  416. 

  417. 

  418. <span class="k">def</span> <span class="nf">time_print</span><span class="p">(</span><span class="n">txt</span><span class="p">):</span>

  419.     <span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">asctime</span><span class="p">()</span> <span class="o">+</span> <span class="s1">&#39;: &#39;</span> <span class="o">+</span> <span class="n">txt</span> <span class="o">+</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="p">)</span>

  420. 

  421. 

  422. <span class="k">def</span> <span class="nf">hello</span><span class="p">(</span><span class="n">rt</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>

  423.     <span class="k">global</span> <span class="n">task_num</span>

  424.     <span class="n">task_num</span> <span class="o">+=</span> <span class="mi">1</span>

  425.     <span class="k">if</span> <span class="n">task_num</span> <span class="o">&gt;=</span> <span class="mi">5</span><span class="p">:</span>

  426.         <span class="n">rt</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>

  427.     <span class="n">tn</span> <span class="o">=</span> <span class="n">task_num</span>

  428.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;(Task </span><span class="si">%d</span><span class="s2">) Hello </span><span class="si">%s</span><span class="s2">!&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">tn</span><span class="p">,</span> <span class="n">name</span><span class="p">))</span>

  429.     <span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mf">3.8</span><span class="p">)</span>

  430.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;(Task </span><span class="si">%d</span><span class="s2">) Ende!&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">tn</span><span class="p">))</span>

  431. 

  432. 

  433. <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;task.periodic example:</span><span class="se">\n</span><span class="s2">----------------------&quot;</span><span class="p">)</span>

  434. <span class="n">pt</span> <span class="o">=</span> <span class="n">task</span><span class="o">.</span><span class="n">periodic</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">hello</span><span class="p">,</span> <span class="s2">&quot;from periodic example&quot;</span><span class="p">)</span>

  435. <span class="n">pt</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>

  436. <span class="k">try</span><span class="p">:</span>

  437.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;starting...&quot;</span><span class="p">)</span>

  438.     <span class="n">pt</span><span class="o">.</span><span class="n">join</span><span class="p">()</span>

  439. <span class="k">finally</span><span class="p">:</span>

  440.     <span class="n">pt</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>

  441. </pre></div>

  442. </div>

  443. <p>Will result to the following output:</p>

  444. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>task.periodic example:

  445. ----------------------

  446. Thu Jan  7 17:21:26 2021: starting...

  447. Thu Jan  7 17:21:26 2021: (Task 1) Hello from periodic example!

  448. Thu Jan  7 17:21:28 2021: (Task 2) Hello from periodic example!

  449. Thu Jan  7 17:21:30 2021: (Task 1) Ende!

  450. Thu Jan  7 17:21:30 2021: (Task 3) Hello from periodic example!

  451. Thu Jan  7 17:21:32 2021: (Task 2) Ende!

  452. Thu Jan  7 17:21:32 2021: (Task 4) Hello from periodic example!

  453. Thu Jan  7 17:21:34 2021: (Task 3) Ende!

  454. Thu Jan  7 17:21:34 2021: (Task 5) Hello from periodic example!

  455. Thu Jan  7 17:21:36 2021: (Task 4) Ende!

  456. Thu Jan  7 17:21:38 2021: (Task 5) Ende!

  457. </pre></div>

  458. </div>

  459. <dl class="method">

  460. <dt id="task.periodic.join">

  461. <code class="descname">join</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.periodic.join" title="Permalink to this definition">¶</a></dt>

  462. <dd><p>This blocks till the cyclic task is terminated.</p>

  463. <div class="admonition note">

  464. <p class="first admonition-title">Note</p>

  465. <p class="last">Using join means that somewhere has to be a condition calling <a class="reference internal" href="#task.periodic.stop" title="task.periodic.stop"><code class="xref py py-func docutils literal notranslate"><span class="pre">stop()</span></code></a> to terminate. Otherwise <code class="xref py py-func docutils literal notranslate"><span class="pre">task.join()</span></code> will never return.</p>

  466. </div>

  467. </dd></dl>

  468. 

  469. <dl class="method">

  470. <dt id="task.periodic.run">

  471. <code class="descname">run</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.periodic.run" title="Permalink to this definition">¶</a></dt>

  472. <dd><p>This starts the cyclic execution of the given callback.</p>

  473. </dd></dl>

  474. 

  475. <dl class="method">

  476. <dt id="task.periodic.stop">

  477. <code class="descname">stop</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.periodic.stop" title="Permalink to this definition">¶</a></dt>

  478. <dd><p>This stops the execution of any further task.</p>

  479. </dd></dl>

  480. 

  481. </dd></dl>

  482. 

  483. <dl class="class">

  484. <dt id="task.queue">

  485. <em class="property">class </em><code class="descclassname">task.</code><code class="descname">queue</code><span class="sig-paren">(</span><em>expire=True</em><span class="sig-paren">)</span><a class="headerlink" href="#task.queue" title="Permalink to this definition">¶</a></dt>

  486. <dd><p>Class to execute queued callbacks.</p>

  487. <table class="docutils field-list" frame="void" rules="none">

  488. <col class="field-name" />

  489. <col class="field-body" />

  490. <tbody valign="top">

  491. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>expire</strong> (<em>bool</em>) – The default value for expire. See also <a class="reference internal" href="#task.queue.expire" title="task.queue.expire"><code class="xref py py-func docutils literal notranslate"><span class="pre">expire()</span></code></a>.</td>

  492. </tr>

  493. </tbody>

  494. </table>

  495. <p><strong>Example:</strong></p>

  496. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/usr/bin/env python</span>

  497. <span class="c1"># -*- coding: UTF-8 -*-</span>

  498. 

  499. <span class="kn">import</span> <span class="nn">sys</span>

  500. <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s1">&#39;../..&#39;</span><span class="p">)</span>

  501. <span class="kn">import</span> <span class="nn">task</span>

  502. <span class="kn">import</span> <span class="nn">time</span>

  503. 

  504. <span class="n">task_num</span> <span class="o">=</span> <span class="mi">0</span>

  505. 

  506. 

  507. <span class="k">def</span> <span class="nf">time_print</span><span class="p">(</span><span class="n">txt</span><span class="p">):</span>

  508.     <span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">asctime</span><span class="p">()</span> <span class="o">+</span> <span class="s1">&#39;: &#39;</span> <span class="o">+</span> <span class="n">txt</span> <span class="o">+</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="p">)</span>

  509. 

  510. 

  511. <span class="k">def</span> <span class="nf">hello</span><span class="p">(</span><span class="n">rt</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>

  512.     <span class="k">global</span> <span class="n">task_num</span>

  513.     <span class="n">task_num</span> <span class="o">+=</span> <span class="mi">1</span>

  514.     <span class="k">if</span> <span class="n">task_num</span> <span class="o">&gt;=</span> <span class="mi">5</span><span class="p">:</span>

  515.         <span class="n">rt</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>

  516.     <span class="n">tn</span> <span class="o">=</span> <span class="n">task_num</span>

  517.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;(Task </span><span class="si">%d</span><span class="s2">) Hello </span><span class="si">%s</span><span class="s2">!&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">tn</span><span class="p">,</span> <span class="n">name</span><span class="p">))</span>

  518.     <span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mf">3.8</span><span class="p">)</span>

  519.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;(Task </span><span class="si">%d</span><span class="s2">) Ende!&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">tn</span><span class="p">))</span>

  520. 

  521. 

  522. <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;task.queue example:</span><span class="se">\n</span><span class="s2">----------------------&quot;</span><span class="p">)</span>

  523. <span class="n">q</span> <span class="o">=</span> <span class="n">task</span><span class="o">.</span><span class="n">queue</span><span class="p">()</span>

  524. <span class="n">q</span><span class="o">.</span><span class="n">enqueue</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="n">hello</span><span class="p">,</span> <span class="s2">&quot;from queue example (5)&quot;</span><span class="p">)</span>

  525. <span class="n">q</span><span class="o">.</span><span class="n">enqueue</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="n">hello</span><span class="p">,</span> <span class="s2">&quot;from queue example (6)&quot;</span><span class="p">)</span>

  526. <span class="n">q</span><span class="o">.</span><span class="n">enqueue</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="n">hello</span><span class="p">,</span> <span class="s2">&quot;from queue example (4)&quot;</span><span class="p">)</span>

  527. <span class="n">q</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>

  528. </pre></div>

  529. </div>

  530. <p>Will result to the following output:</p>

  531. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>task.queue example:

  532. ----------------------

  533. Thu Jan  7 17:30:54 2021: (Task 1) Hello from queue example (4)!

  534. Thu Jan  7 17:30:58 2021: (Task 1) Ende!

  535. Thu Jan  7 17:30:58 2021: (Task 2) Hello from queue example (5)!

  536. Thu Jan  7 17:31:02 2021: (Task 2) Ende!

  537. Thu Jan  7 17:31:02 2021: (Task 3) Hello from queue example (6)!

  538. Thu Jan  7 17:31:06 2021: (Task 3) Ende!

  539. </pre></div>

  540. </div>

  541. <dl class="method">

  542. <dt id="task.queue.clean_queue">

  543. <code class="descname">clean_queue</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.queue.clean_queue" title="Permalink to this definition">¶</a></dt>

  544. <dd><p>This Methods removes all jobs from the queue.</p>

  545. <div class="admonition note">

  546. <p class="first admonition-title">Note</p>

  547. <p class="last">Be aware that already running jobs will not be terminated.</p>

  548. </div>

  549. </dd></dl>

  550. 

  551. <dl class="method">

  552. <dt id="task.queue.enqueue">

  553. <code class="descname">enqueue</code><span class="sig-paren">(</span><em>priority</em>, <em>callback</em>, <em>*args</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="headerlink" href="#task.queue.enqueue" title="Permalink to this definition">¶</a></dt>

  554. <dd><p>This enqueues a given callback.</p>

  555. <table class="docutils field-list" frame="void" rules="none">

  556. <col class="field-name" />

  557. <col class="field-body" />

  558. <tbody valign="top">

  559. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">

  560. <li><strong>priority</strong> (<em>number</em>) – The priority indication number of this task. The lowest value will be queued first.</li>

  561. <li><strong>callback</strong> (<em>callback</em>) – Callback to be executed</li>

  562. <li><strong>args</strong> (<em>args</em>) – Arguments to be given to callback</li>

  563. <li><strong>kwargs</strong> (<em>kwargs</em>) – Keword Arguments to be given to callback</li>

  564. </ul>

  565. </td>

  566. </tr>

  567. </tbody>

  568. </table>

  569. <div class="admonition note">

  570. <p class="first admonition-title">Note</p>

  571. <p class="last">Callback will get this instance as first argument, followed by <code class="xref py py-data docutils literal notranslate"><span class="pre">args</span></code> und <code class="xref py py-data docutils literal notranslate"><span class="pre">kwargs</span></code>.</p>

  572. </div>

  573. </dd></dl>

  574. 

  575. <dl class="method">

  576. <dt id="task.queue.expire">

  577. <code class="descname">expire</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.queue.expire" title="Permalink to this definition">¶</a></dt>

  578. <dd><p>This sets the expire flag. That means that the process will stop after queue gets empty.</p>

  579. </dd></dl>

  580. 

  581. <dl class="method">

  582. <dt id="task.queue.run">

  583. <code class="descname">run</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.queue.run" title="Permalink to this definition">¶</a></dt>

  584. <dd><p>This starts the execution of the queued callbacks.</p>

  585. </dd></dl>

  586. 

  587. <dl class="method">

  588. <dt id="task.queue.stop">

  589. <code class="descname">stop</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.queue.stop" title="Permalink to this definition">¶</a></dt>

  590. <dd><p>This sets the stop flag. That means that the process will stop after finishing the active task.</p>

  591. </dd></dl>

  592. 

  593. </dd></dl>

  594. 

  595. <dl class="class">

  596. <dt id="task.threaded_queue">

  597. <em class="property">class </em><code class="descclassname">task.</code><code class="descname">threaded_queue</code><span class="sig-paren">(</span><em>expire=False</em><span class="sig-paren">)</span><a class="headerlink" href="#task.threaded_queue" title="Permalink to this definition">¶</a></dt>

  598. <dd><p>Class to execute queued callbacks in a background thread (See also parent <a class="reference internal" href="#task.queue" title="task.queue"><code class="xref py py-class docutils literal notranslate"><span class="pre">queue</span></code></a>).</p>

  599. <table class="docutils field-list" frame="void" rules="none">

  600. <col class="field-name" />

  601. <col class="field-body" />

  602. <tbody valign="top">

  603. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>expire</strong> (<em>bool</em>) – The default value for expire. See also <a class="reference internal" href="#task.queue.expire" title="task.queue.expire"><code class="xref py py-func docutils literal notranslate"><span class="pre">queue.expire()</span></code></a>.</td>

  604. </tr>

  605. </tbody>

  606. </table>

  607. <p><strong>Example:</strong></p>

  608. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/usr/bin/env python</span>

  609. <span class="c1"># -*- coding: UTF-8 -*-</span>

  610. 

  611. <span class="kn">import</span> <span class="nn">sys</span>

  612. <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s1">&#39;../..&#39;</span><span class="p">)</span>

  613. <span class="kn">import</span> <span class="nn">task</span>

  614. <span class="kn">import</span> <span class="nn">time</span>

  615. 

  616. <span class="n">task_num</span> <span class="o">=</span> <span class="mi">0</span>

  617. 

  618. 

  619. <span class="k">def</span> <span class="nf">time_print</span><span class="p">(</span><span class="n">txt</span><span class="p">):</span>

  620.     <span class="n">sys</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">asctime</span><span class="p">()</span> <span class="o">+</span> <span class="s1">&#39;: &#39;</span> <span class="o">+</span> <span class="n">txt</span> <span class="o">+</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="p">)</span>

  621. 

  622. 

  623. <span class="k">def</span> <span class="nf">hello</span><span class="p">(</span><span class="n">rt</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>

  624.     <span class="k">global</span> <span class="n">task_num</span>

  625.     <span class="n">task_num</span> <span class="o">+=</span> <span class="mi">1</span>

  626.     <span class="k">if</span> <span class="n">task_num</span> <span class="o">&gt;=</span> <span class="mi">5</span><span class="p">:</span>

  627.         <span class="n">rt</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>

  628.     <span class="n">tn</span> <span class="o">=</span> <span class="n">task_num</span>

  629.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;(Task </span><span class="si">%d</span><span class="s2">) Hello </span><span class="si">%s</span><span class="s2">!&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">tn</span><span class="p">,</span> <span class="n">name</span><span class="p">))</span>

  630.     <span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mf">3.8</span><span class="p">)</span>

  631.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;(Task </span><span class="si">%d</span><span class="s2">) Ende!&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">tn</span><span class="p">))</span>

  632. 

  633. 

  634. <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;task.threaded_queue example:</span><span class="se">\n</span><span class="s2">-------------------------------&quot;</span><span class="p">)</span>

  635. <span class="n">tq</span> <span class="o">=</span> <span class="n">task</span><span class="o">.</span><span class="n">threaded_queue</span><span class="p">()</span>

  636. <span class="n">tq</span><span class="o">.</span><span class="n">enqueue</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="n">hello</span><span class="p">,</span> <span class="s2">&quot;from queue example (5)&quot;</span><span class="p">)</span>

  637. <span class="n">tq</span><span class="o">.</span><span class="n">enqueue</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="n">hello</span><span class="p">,</span> <span class="s2">&quot;from queue example (6)&quot;</span><span class="p">)</span>

  638. <span class="n">tq</span><span class="o">.</span><span class="n">enqueue</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="n">hello</span><span class="p">,</span> <span class="s2">&quot;from queue example (4)&quot;</span><span class="p">)</span>

  639. <span class="n">tq</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>

  640. <span class="k">try</span><span class="p">:</span>

  641.     <span class="n">time_print</span><span class="p">(</span><span class="s2">&quot;starting...&quot;</span><span class="p">)</span>

  642.     <span class="n">tq</span><span class="o">.</span><span class="n">join</span><span class="p">()</span>

  643. <span class="k">finally</span><span class="p">:</span>

  644.     <span class="n">tq</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>

  645. </pre></div>

  646. </div>

  647. <p>Will result to the following output:</p>

  648. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>task.threaded_queue example:

  649. -------------------------------

  650. Thu Jan  7 17:33:50 2021: (Task 1) Hello from queue example (4)!

  651. Thu Jan  7 17:33:50 2021: starting...

  652. Thu Jan  7 17:33:54 2021: (Task 1) Ende!

  653. Thu Jan  7 17:33:54 2021: (Task 2) Hello from queue example (5)!

  654. Thu Jan  7 17:33:58 2021: (Task 2) Ende!

  655. Thu Jan  7 17:33:58 2021: (Task 3) Hello from queue example (6)!

  656. Thu Jan  7 17:34:01 2021: (Task 3) Ende!

  657. </pre></div>

  658. </div>

  659. <dl class="method">

  660. <dt id="task.threaded_queue.join">

  661. <code class="descname">join</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.threaded_queue.join" title="Permalink to this definition">¶</a></dt>

  662. <dd><p>This blocks till the queue is empty.</p>

  663. <div class="admonition note">

  664. <p class="first admonition-title">Note</p>

  665. <p class="last">If the queue does not run dry, join will block till the end of the days.</p>

  666. </div>

  667. </dd></dl>

  668. 

  669. <dl class="method">

  670. <dt id="task.threaded_queue.run">

  671. <code class="descname">run</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.threaded_queue.run" title="Permalink to this definition">¶</a></dt>

  672. <dd><p>This starts the execution of the queued callbacks.</p>

  673. </dd></dl>

  674. 

  675. <dl class="method">

  676. <dt id="task.threaded_queue.stop">

  677. <code class="descname">stop</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#task.threaded_queue.stop" title="Permalink to this definition">¶</a></dt>

  678. <dd><p>This sets the stop flag. That means that the process will stop after finishing the active task.</p>

  679. </dd></dl>

  680. 

  681. </dd></dl>

  682. 

  683. </div>

  684. <div class="toctree-wrapper compound">

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  686. </div>

  687. <div class="section" id="indices-and-tables">

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