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<div class="title">libcrypto_threading.cc</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/app/libcrypto_threading.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <openssl/thread.h></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <memory></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/base/synchronization/lock.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "packager/base/threading/platform_thread.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> std::unique_ptr<base::Lock[]> global_locks;</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keywordtype">void</span> LockFunction(<span class="keywordtype">int</span> mode, <span class="keywordtype">int</span> n, <span class="keyword">const</span> <span class="keywordtype">char</span>* file, <span class="keywordtype">int</span> line) {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  VLOG(2) << <span class="stringliteral">"CryptoLock @ "</span> << file << <span class="stringliteral">":"</span> << line;</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">if</span> (mode & CRYPTO_LOCK)</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  global_locks[n].Acquire();</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">else</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  global_locks[n].Release();</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> }</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keywordtype">void</span> ThreadIdFunction(CRYPTO_THREADID* <span class="keywordtype">id</span>) {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  CRYPTO_THREADID_set_numeric(</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">id</span>, static_cast<unsigned long>(base::PlatformThread::CurrentId()));</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> }</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> LibcryptoThreading::LibcryptoThreading() {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  global_locks.reset(<span class="keyword">new</span> base::Lock[CRYPTO_num_locks()]);</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  CRYPTO_THREADID_set_callback(ThreadIdFunction);</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  CRYPTO_set_locking_callback(LockFunction);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> LibcryptoThreading::~LibcryptoThreading() {</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  CRYPTO_THREADID_set_callback(NULL);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  CRYPTO_set_locking_callback(NULL);</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  global_locks.reset();</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> } <span class="comment">// namespace shaka</span></div>
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