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<li class="navelem"><a class="el" href="../../dir_3f8eec2fc361645de4b1ec14c19fffc7.html">packager</a></li><li class="navelem"><a class="el" href="../../dir_d258fb6e36cbaad69b44b6c9489b2bbb.html">file</a></li> </ul>
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<div class="title">file_util.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 2016 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/file/file_util.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 <inttypes.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 "packager/base/files/file_path.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/base/files/file_util.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/base/process/process_handle.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/base/strings/stringprintf.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/threading/platform_thread.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/time/time.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><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// Create a temp file name using process id, thread id and current time.</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> std::string TempFileName() {</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keyword">const</span> int32_t process_id = <span class="keyword">static_cast<</span>int32_t<span class="keyword">></span>(base::GetCurrentProcId());</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">const</span> int32_t thread_id =</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">static_cast<</span>int32_t<span class="keyword">></span>(base::PlatformThread::CurrentId());</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="comment">// We may need two or more temporary files in the same thread. There might be</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="comment">// name collision if they are requested around the same time, e.g. called</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="comment">// consecutively. Use a thread_local instance to avoid that.</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">static</span> thread_local int32_t instance_id = 0;</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  ++instance_id;</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>  <span class="keyword">const</span> int64_t current_time = base::Time::Now().ToInternalValue();</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">return</span> base::StringPrintf(<span class="stringliteral">"packager-tempfile-%x-%x-%x-%"</span> PRIx64, process_id,</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  thread_id, instance_id, current_time);</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> }</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> } <span class="comment">// namespace</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"><a class="line" href="../../d8/daf/namespaceshaka.html#a66e7e156c1f83435fb6c130803e48f62"> 38</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d8/daf/namespaceshaka.html#a66e7e156c1f83435fb6c130803e48f62">TempFilePath</a>(<span class="keyword">const</span> std::string& temp_dir, std::string* temp_file_path) {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">if</span> (temp_dir.empty()) {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  base::FilePath file_path;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">if</span> (!base::CreateTemporaryFile(&file_path)) {</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  LOG(ERROR) << <span class="stringliteral">"Failed to create temporary file."</span>;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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>  *temp_file_path = file_path.AsUTF8Unsafe();</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  *temp_file_path =</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  base::FilePath::FromUTF8Unsafe(temp_dir)</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  .Append(base::FilePath::FromUTF8Unsafe(TempFileName()))</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  .AsUTF8Unsafe();</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="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> }</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> } <span class="comment">// namespace shaka</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="anamespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking.</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
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<div class="ttc" id="anamespaceshaka_html_a66e7e156c1f83435fb6c130803e48f62"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html#a66e7e156c1f83435fb6c130803e48f62">shaka::TempFilePath</a></div><div class="ttdeci">bool TempFilePath(const std::string &temp_dir, std::string *temp_file_path)</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d2b/file__util_8cc_source.html#l00038">file_util.cc:38</a></div></div>
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