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<title>M2Crypto.SSL.timeout — M2Crypto documentation</title>
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<h1>Source code for M2Crypto.SSL.timeout</h1><div class="highlight"><pre>
<span></span><span class="sd">"""Support for SSL socket timeouts.</span>
<span class="sd">Copyright (c) 1999-2003 Ng Pheng Siong. All rights reserved.</span>
<span class="sd">Copyright 2008 Heikki Toivonen. All rights reserved.</span>
<span class="sd">"""</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'DEFAULT_TIMEOUT'</span><span class="p">,</span> <span class="s1">'timeout'</span><span class="p">,</span> <span class="s1">'struct_to_timeout'</span><span class="p">,</span> <span class="s1">'struct_size'</span><span class="p">]</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">struct</span>
<span class="n">DEFAULT_TIMEOUT</span> <span class="o">=</span> <span class="mi">600</span> <span class="c1"># type: int</span>
<div class="viewcode-block" id="timeout"><a class="viewcode-back" href="../../../M2Crypto.SSL.html#M2Crypto.SSL.timeout.timeout">[docs]</a><span class="k">class</span> <span class="nc">timeout</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sec</span><span class="o">=</span><span class="n">DEFAULT_TIMEOUT</span><span class="p">,</span> <span class="n">microsec</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
<span class="c1"># type: (int, int) -> None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sec</span> <span class="o">=</span> <span class="n">sec</span>
<span class="bp">self</span><span class="o">.</span><span class="n">microsec</span> <span class="o">=</span> <span class="n">microsec</span>
<div class="viewcode-block" id="timeout.pack"><a class="viewcode-back" href="../../../M2Crypto.SSL.html#M2Crypto.SSL.timeout.timeout.pack">[docs]</a> <span class="k">def</span> <span class="nf">pack</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span> <span class="o">==</span> <span class="s1">'win32'</span><span class="p">:</span>
<span class="n">millisec</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">sec</span> <span class="o">*</span> <span class="mi">1000</span> <span class="o">+</span> <span class="nb">round</span><span class="p">(</span><span class="nb">float</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">microsec</span><span class="p">)</span> <span class="o">/</span> <span class="mi">1000</span><span class="p">))</span>
<span class="n">binstr</span> <span class="o">=</span> <span class="n">struct</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="s1">'l'</span><span class="p">,</span> <span class="n">millisec</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">binstr</span> <span class="o">=</span> <span class="n">struct</span><span class="o">.</span><span class="n">pack</span><span class="p">(</span><span class="s1">'ll'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">sec</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">microsec</span><span class="p">)</span>
<span class="k">return</span> <span class="n">binstr</span></div></div>
<div class="viewcode-block" id="struct_to_timeout"><a class="viewcode-back" href="../../../M2Crypto.SSL.html#M2Crypto.SSL.timeout.struct_to_timeout">[docs]</a><span class="k">def</span> <span class="nf">struct_to_timeout</span><span class="p">(</span><span class="n">binstr</span><span class="p">):</span>
<span class="c1"># type: (bytes) -> timeout</span>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span> <span class="o">==</span> <span class="s1">'win32'</span><span class="p">:</span>
<span class="n">millisec</span> <span class="o">=</span> <span class="n">struct</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="s1">'l'</span><span class="p">,</span> <span class="n">binstr</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="c1"># On py3, int/int performs exact division and returns float. We want</span>
<span class="c1"># the whole number portion of the exact division result:</span>
<span class="n">sec</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">millisec</span> <span class="o">/</span> <span class="mi">1000</span><span class="p">)</span>
<span class="n">microsec</span> <span class="o">=</span> <span class="p">(</span><span class="n">millisec</span> <span class="o">%</span> <span class="mi">1000</span><span class="p">)</span> <span class="o">*</span> <span class="mi">1000</span>
<span class="k">else</span><span class="p">:</span>
<span class="p">(</span><span class="n">sec</span><span class="p">,</span> <span class="n">microsec</span><span class="p">)</span> <span class="o">=</span> <span class="n">struct</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="s1">'ll'</span><span class="p">,</span> <span class="n">binstr</span><span class="p">)</span>
<span class="k">return</span> <span class="n">timeout</span><span class="p">(</span><span class="n">sec</span><span class="p">,</span> <span class="n">microsec</span><span class="p">)</span></div>
<div class="viewcode-block" id="struct_size"><a class="viewcode-back" href="../../../M2Crypto.SSL.html#M2Crypto.SSL.timeout.struct_size">[docs]</a><span class="k">def</span> <span class="nf">struct_size</span><span class="p">():</span>
<span class="c1"># type: () -> int</span>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span> <span class="o">==</span> <span class="s1">'win32'</span><span class="p">:</span>
<span class="k">return</span> <span class="n">struct</span><span class="o">.</span><span class="n">calcsize</span><span class="p">(</span><span class="s1">'l'</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">struct</span><span class="o">.</span><span class="n">calcsize</span><span class="p">(</span><span class="s1">'ll'</span><span class="p">)</span></div>
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