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<h1>Source code for windows.utils.pythonutils</h1><div class="highlight"><pre>
<span></span><span class="sd">&quot;&quot;&quot;utils fonctions non windows-related&quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">ctypes</span>
<span class="kn">import</span> <span class="nn">_ctypes</span>
<span class="kn">import</span> <span class="nn">windows.generated_def</span> <span class="k">as</span> <span class="nn">gdef</span>
<span class="kn">from</span> <span class="nn">windows</span> <span class="kn">import</span> <span class="n">winproxy</span>
<span class="kn">from</span> <span class="nn">windows.dbgprint</span> <span class="kn">import</span> <span class="n">dbgprint</span>
<span class="kn">from</span> <span class="nn">windows.pycompat</span> <span class="kn">import</span> <span class="n">basestring</span>
<span class="k">def</span> <span class="nf">fixedpropety</span><span class="p">(</span><span class="n">f</span><span class="p">):</span>
<span class="n">cache_name</span> <span class="o">=</span> <span class="s2">&quot;_&quot;</span> <span class="o">+</span> <span class="n">f</span><span class="o">.</span><span class="vm">__name__</span>
<span class="k">def</span> <span class="nf">prop</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">cache_name</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span>
<span class="nb">setattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">cache_name</span><span class="p">,</span> <span class="n">f</span><span class="p">(</span><span class="bp">self</span><span class="p">))</span>
<span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">cache_name</span><span class="p">)</span>
<span class="k">return</span> <span class="nb">property</span><span class="p">(</span><span class="n">prop</span><span class="p">,</span> <span class="n">doc</span><span class="o">=</span><span class="n">f</span><span class="o">.</span><span class="vm">__doc__</span><span class="p">)</span>
<span class="c1"># Slow fix of the typo :)</span>
<span class="n">fixedproperty</span> <span class="o">=</span> <span class="n">fixedpropety</span>
<span class="c1"># type replacement based on name</span>
<span class="k">def</span> <span class="nf">transform_ctypes_fields</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="n">replacement</span><span class="p">):</span>
<span class="k">return</span> <span class="p">[(</span><span class="n">name</span><span class="p">,</span> <span class="n">replacement</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="nb">type</span><span class="p">))</span> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="nb">type</span> <span class="ow">in</span> <span class="n">struct</span><span class="o">.</span><span class="n">_fields_</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">print_ctypes_struct</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s2">&quot;&quot;</span><span class="p">,</span> <span class="n">hexa</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="n">sprint_method</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="s2">&quot;__sprint__&quot;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">sprint_method</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="c1"># Allow function to accept &#39;hexa&#39; param</span>
<span class="c1"># But handle function that don&#39;t, So we can just do:</span>
<span class="c1"># __sprint__ = __repr__</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">{0}</span><span class="s2"> -&gt; </span><span class="si">{1}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">sprint_method</span><span class="p">()))</span>
<span class="k">return</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="n">_ctypes</span><span class="o">.</span><span class="n">_Pointer</span><span class="p">):</span>
<span class="k">if</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">c_void_p</span><span class="p">)</span><span class="o">.</span><span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">{0}</span><span class="s2"> -&gt; NULL&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="p">))</span>
<span class="k">return</span>
<span class="k">return</span> <span class="n">print_ctypes_struct</span><span class="p">(</span><span class="n">struct</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">name</span> <span class="o">+</span> <span class="s2">&quot;&lt;deref&gt;&quot;</span><span class="p">,</span> <span class="n">hexa</span><span class="o">=</span><span class="n">hexa</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="s2">&quot;_fields_&quot;</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">struct</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="s2">&quot;value&quot;</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">struct</span><span class="o">.</span><span class="n">value</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">basestring</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="nb">repr</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">if</span> <span class="n">hexa</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">gdef</span><span class="o">.</span><span class="n">Flag</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">{0}</span><span class="s2"> -&gt; </span><span class="si">{1}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="nb">hex</span><span class="p">(</span><span class="n">value</span><span class="p">)))</span>
<span class="k">return</span>
<span class="k">except</span> <span class="ne">TypeError</span><span class="p">:</span>
<span class="k">pass</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">{0}</span><span class="s2"> -&gt; </span><span class="si">{1}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">))</span>
<span class="k">return</span>
<span class="k">for</span> <span class="n">field</span> <span class="ow">in</span> <span class="n">struct</span><span class="o">.</span><span class="n">_fields_</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">field</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">fname</span><span class="p">,</span> <span class="n">ftype</span> <span class="o">=</span> <span class="n">field</span>
<span class="n">nb_bits</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">field</span><span class="p">)</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
<span class="n">fname</span><span class="p">,</span> <span class="n">ftype</span><span class="p">,</span> <span class="n">nb_bits</span> <span class="o">=</span> <span class="n">field</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">&quot;Unknown ctypes field entry format &lt;</span><span class="si">{0}</span><span class="s2">&gt;&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">field</span><span class="p">))</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="n">fname</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;Error while printing &lt;</span><span class="si">{0}</span><span class="s2">&gt; : </span><span class="si">{1}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">fname</span><span class="p">,</span> <span class="n">e</span><span class="p">))</span>
<span class="k">continue</span>
<span class="n">print_ctypes_struct</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="s2">&quot;</span><span class="si">{0}</span><span class="s2">.</span><span class="si">{1}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">fname</span><span class="p">),</span> <span class="n">hexa</span><span class="o">=</span><span class="n">hexa</span><span class="p">)</span>
<div class="viewcode-block" id="sprint">
<a class="viewcode-back" href="../../../utils.html#windows.utils.sprint">[docs]</a>
<span class="k">def</span> <span class="nf">sprint</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s2">&quot;struct&quot;</span><span class="p">,</span> <span class="n">hexa</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Print recursively the content of a :mod:`ctypes` structure&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">print_ctypes_struct</span><span class="p">(</span><span class="n">struct</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">,</span> <span class="n">hexa</span><span class="o">=</span><span class="n">hexa</span><span class="p">)</span></div>
<span class="k">class</span> <span class="nc">AutoHandle</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;An abstract class that allow easy handle creation/destruction/wait&quot;&quot;&quot;</span>
<span class="c1"># Big bypass to prevent missing reference at programm exit..</span>
<span class="n">_close_function</span> <span class="o">=</span> <span class="n">ctypes</span><span class="o">.</span><span class="n">WinDLL</span><span class="p">(</span><span class="s2">&quot;kernel32&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">CloseHandle</span>
<span class="k">def</span> <span class="nf">_get_handle</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">{0}</span><span class="s2"> is abstract&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="vm">__name__</span><span class="p">))</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">handle</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;An handle on the object</span>
<span class="sd"> :type: HANDLE</span>
<span class="sd"> .. note::</span>
<span class="sd"> The handle is automaticaly closed when the object is destroyed</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;_handle&quot;</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_handle</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_handle</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_handle</span><span class="p">()</span>
<span class="n">dbgprint</span><span class="p">(</span><span class="s2">&quot;Open handle </span><span class="si">{0}</span><span class="s2"> for </span><span class="si">{1}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="nb">hex</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_handle</span><span class="p">),</span> <span class="bp">self</span><span class="p">),</span> <span class="s2">&quot;HANDLE&quot;</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_handle</span>
<span class="k">def</span> <span class="nf">wait</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">timeout</span><span class="o">=</span><span class="n">gdef</span><span class="o">.</span><span class="n">INFINITE</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Wait for the object&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">winproxy</span><span class="o">.</span><span class="n">WaitForSingleObject</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">handle</span><span class="p">,</span> <span class="n">timeout</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__del__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># sys.path is not None -&gt; check if python shutdown</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">sys</span><span class="p">,</span> <span class="s2">&quot;path&quot;</span><span class="p">)</span> <span class="ow">and</span> <span class="n">sys</span><span class="o">.</span><span class="n">path</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">&quot;_handle&quot;</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">_handle</span><span class="p">:</span>
<span class="c1"># Prevent some bug where dbgprint might be None when __del__ is called in a closing process</span>
<span class="n">dbgprint</span><span class="p">(</span><span class="s2">&quot;Closing Handle </span><span class="si">{0}</span><span class="s2"> for </span><span class="si">{1}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="nb">hex</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_handle</span><span class="p">),</span> <span class="bp">self</span><span class="p">),</span> <span class="s2">&quot;HANDLE&quot;</span><span class="p">)</span> <span class="k">if</span> <span class="n">dbgprint</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="k">else</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_close_function</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_handle</span><span class="p">)</span>
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