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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">threaded_io_file.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 2015 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/threaded_io_file.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 "packager/base/bind.h"</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/base/bind_helpers.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/location.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/threading/worker_pool.h"</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="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> ThreadedIoFile::ThreadedIoFile(std::unique_ptr<File, FileCloser> internal_file,</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  Mode mode,</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  uint64_t io_cache_size,</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  uint64_t io_block_size)</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  : File(internal_file->file_name()),</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  internal_file_(std::move(internal_file)),</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  mode_(mode),</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  cache_(io_cache_size),</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  io_buffer_(io_block_size),</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  position_(0),</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  size_(0),</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  eof_(false),</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  flushing_(false),</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  flush_complete_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  base::WaitableEvent::InitialState::NOT_SIGNALED),</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  internal_file_error_(0),</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  task_exit_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  base::WaitableEvent::InitialState::NOT_SIGNALED) {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  DCHECK(internal_file_);</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>  </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> ThreadedIoFile::~ThreadedIoFile() {}</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div>
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<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a353eb138e2f23f4e75c8c56580050aa0"> 39</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a353eb138e2f23f4e75c8c56580050aa0">ThreadedIoFile::Open</a>() {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">if</span> (!internal_file_->Open())</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>  position_ = 0;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  size_ = internal_file_->Size();</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  base::WorkerPool::PostTask(</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  FROM_HERE,</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  base::Bind(&ThreadedIoFile::TaskHandler, base::Unretained(<span class="keyword">this</span>)),</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">true</span> <span class="comment">/* task_is_slow */</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"><a class="line" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a79292b93c39f609b5348787a39fc77b2"> 55</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a79292b93c39f609b5348787a39fc77b2">ThreadedIoFile::Close</a>() {</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">bool</span> result = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">if</span> (mode_ == kOutputMode)</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  result = <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a2b53b72d99aad4439781e3887492452c">Flush</a>();</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a1c54ca1d747cf0b0b9ab681babff73e6">Close</a>();</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  task_exit_event_.Wait();</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  result &= internal_file_.release()->Close();</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">delete</span> <span class="keyword">this</span>;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> }</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
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<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#af45702d95d4e46e93b1f4a897844212e"> 70</a></span> int64_t <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#af45702d95d4e46e93b1f4a897844212e">ThreadedIoFile::Read</a>(<span class="keywordtype">void</span>* buffer, uint64_t length) {</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  DCHECK_EQ(kInputMode, mode_);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  </div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> (eof_.load(std::memory_order_relaxed) && !cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a8033da711e62112877be7a6ac2186622">BytesCached</a>())</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">if</span> (internal_file_error_.load(std::memory_order_relaxed))</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> internal_file_error_.load(std::memory_order_relaxed);</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  uint64_t bytes_read = cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a7cc144c2f848725db08b3ca175475fc2">Read</a>(buffer, length);</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  position_ += bytes_read;</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">return</span> bytes_read;</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> }</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
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<div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#ab8acfe4af14c1120ae6d2baa44a10583"> 86</a></span> int64_t <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#ab8acfe4af14c1120ae6d2baa44a10583">ThreadedIoFile::Write</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* buffer, uint64_t length) {</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  DCHECK_EQ(kOutputMode, mode_);</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  </div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> (internal_file_error_.load(std::memory_order_relaxed))</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> internal_file_error_.load(std::memory_order_relaxed);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  </div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  uint64_t bytes_written = cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a483277a6c68dd58cebb8dafb5c1dcd21">Write</a>(buffer, length);</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  position_ += bytes_written;</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (position_ > size_)</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  size_ = position_;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  </div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">return</span> bytes_written;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> }</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  </div>
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<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#af23f2da404e1602c240bb59d2601f1b9"> 101</a></span> int64_t <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#af23f2da404e1602c240bb59d2601f1b9">ThreadedIoFile::Size</a>() {</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> size_;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> }</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
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<div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a2b53b72d99aad4439781e3887492452c"> 107</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a2b53b72d99aad4439781e3887492452c">ThreadedIoFile::Flush</a>() {</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  DCHECK_EQ(kOutputMode, mode_);</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (internal_file_error_.load(std::memory_order_relaxed))</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  flushing_ = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a1c54ca1d747cf0b0b9ab681babff73e6">Close</a>();</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  flush_complete_event_.Wait();</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> internal_file_->Flush();</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> }</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  </div>
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<div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a9b95550cf6342f970645c086a2ed58c2"> 120</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a9b95550cf6342f970645c086a2ed58c2">ThreadedIoFile::Seek</a>(uint64_t position) {</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (mode_ == kOutputMode) {</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// Writing. Just flush the cache and seek.</span></div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a2b53b72d99aad4439781e3887492452c">Flush</a>())</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span> (!internal_file_->Seek(position))</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// Reading. Close cache, wait for thread task to exit, seek, and re-post</span></div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// the task.</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a1c54ca1d747cf0b0b9ab681babff73e6">Close</a>();</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  task_exit_event_.Wait();</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">bool</span> result = internal_file_->Seek(position);</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">if</span> (!result) {</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// Seek failed. Seek to logical position instead.</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">if</span> (!internal_file_->Seek(position_) && (position != position_)) {</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  LOG(WARNING) << <span class="stringliteral">"Seek failed. ThreadedIoFile left in invalid state."</span>;</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#ac2c7cbec6d771de00fe0cfe0b7d0e454">Reopen</a>();</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  eof_ = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  base::WorkerPool::PostTask(</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  FROM_HERE,</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  base::Bind(&ThreadedIoFile::TaskHandler, base::Unretained(<span class="keyword">this</span>)),</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">true</span> <span class="comment">/* task_is_slow */</span>);</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (!result)</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  position_ = position;</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> }</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  </div>
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<div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a6ee5bcbe6bb8dd232679b2c50d968f4e"> 152</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a6ee5bcbe6bb8dd232679b2c50d968f4e">ThreadedIoFile::Tell</a>(uint64_t* position) {</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  DCHECK(position);</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  </div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  *position = position_;</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> }</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  </div>
|
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keywordtype">void</span> ThreadedIoFile::TaskHandler() {</div>
|
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">if</span> (mode_ == kInputMode)</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  RunInInputMode();</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">else</span></div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  RunInOutputMode();</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  task_exit_event_.Signal();</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> }</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  </div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="keywordtype">void</span> ThreadedIoFile::RunInInputMode() {</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  DCHECK(internal_file_);</div>
|
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  DCHECK_EQ(kInputMode, mode_);</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  </div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  int64_t read_result =</div>
|
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  internal_file_->Read(&io_buffer_[0], io_buffer_.size());</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (read_result <= 0) {</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  eof_.store(read_result == 0, std::memory_order_relaxed);</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  internal_file_error_.store(read_result, std::memory_order_relaxed);</div>
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|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a1c54ca1d747cf0b0b9ab681babff73e6">Close</a>();</div>
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|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  }</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">if</span> (cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a483277a6c68dd58cebb8dafb5c1dcd21">Write</a>(&io_buffer_[0], read_result) == 0) {</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  }</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> }</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  </div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="keywordtype">void</span> ThreadedIoFile::RunInOutputMode() {</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  DCHECK(internal_file_);</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  DCHECK_EQ(kOutputMode, mode_);</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  </div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  uint64_t write_bytes = cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a7cc144c2f848725db08b3ca175475fc2">Read</a>(&io_buffer_[0], io_buffer_.size());</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">if</span> (write_bytes == 0) {</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span> (flushing_) {</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#ac2c7cbec6d771de00fe0cfe0b7d0e454">Reopen</a>();</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  flushing_ = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  flush_complete_event_.Signal();</div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  uint64_t bytes_written(0);</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">while</span> (bytes_written < write_bytes) {</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  int64_t write_result = internal_file_->Write(</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  &io_buffer_[bytes_written], write_bytes - bytes_written);</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (write_result < 0) {</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  internal_file_error_.store(write_result, std::memory_order_relaxed);</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  cache_.<a class="code" href="../../df/d4e/classshaka_1_1IoCache.html#a1c54ca1d747cf0b0b9ab681babff73e6">Close</a>();</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> (flushing_) {</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  flushing_ = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  flush_complete_event_.Signal();</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  bytes_written += write_result;</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  }</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> }</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  </div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> } <span class="comment">// namespace shaka</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassshaka_1_1ThreadedIoFile_html_af45702d95d4e46e93b1f4a897844212e"><div class="ttname"><a href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#af45702d95d4e46e93b1f4a897844212e">shaka::ThreadedIoFile::Read</a></div><div class="ttdeci">int64_t Read(void *buffer, uint64_t length) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d23/threaded__io__file_8cc_source.html#l00070">threaded_io_file.cc:70</a></div></div>
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<div class="ttc" id="aclassshaka_1_1ThreadedIoFile_html_af23f2da404e1602c240bb59d2601f1b9"><div class="ttname"><a href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#af23f2da404e1602c240bb59d2601f1b9">shaka::ThreadedIoFile::Size</a></div><div class="ttdeci">int64_t Size() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d23/threaded__io__file_8cc_source.html#l00101">threaded_io_file.cc:101</a></div></div>
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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="aclassshaka_1_1IoCache_html_a483277a6c68dd58cebb8dafb5c1dcd21"><div class="ttname"><a href="../../df/d4e/classshaka_1_1IoCache.html#a483277a6c68dd58cebb8dafb5c1dcd21">shaka::IoCache::Write</a></div><div class="ttdeci">uint64_t Write(const void *buffer, uint64_t size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d37/io__cache_8cc_source.html#l00066">io_cache.cc:66</a></div></div>
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<div class="ttc" id="aclassshaka_1_1ThreadedIoFile_html_a353eb138e2f23f4e75c8c56580050aa0"><div class="ttname"><a href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a353eb138e2f23f4e75c8c56580050aa0">shaka::ThreadedIoFile::Open</a></div><div class="ttdeci">bool Open() override</div><div class="ttdoc">Internal open. Should not be used directly.</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d23/threaded__io__file_8cc_source.html#l00039">threaded_io_file.cc:39</a></div></div>
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<div class="ttc" id="aclassshaka_1_1ThreadedIoFile_html_a6ee5bcbe6bb8dd232679b2c50d968f4e"><div class="ttname"><a href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a6ee5bcbe6bb8dd232679b2c50d968f4e">shaka::ThreadedIoFile::Tell</a></div><div class="ttdeci">bool Tell(uint64_t *position) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d23/threaded__io__file_8cc_source.html#l00152">threaded_io_file.cc:152</a></div></div>
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<div class="ttc" id="aclassshaka_1_1IoCache_html_a1c54ca1d747cf0b0b9ab681babff73e6"><div class="ttname"><a href="../../df/d4e/classshaka_1_1IoCache.html#a1c54ca1d747cf0b0b9ab681babff73e6">shaka::IoCache::Close</a></div><div class="ttdeci">void Close()</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d37/io__cache_8cc_source.html#l00112">io_cache.cc:112</a></div></div>
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<div class="ttc" id="aclassshaka_1_1ThreadedIoFile_html_a9b95550cf6342f970645c086a2ed58c2"><div class="ttname"><a href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a9b95550cf6342f970645c086a2ed58c2">shaka::ThreadedIoFile::Seek</a></div><div class="ttdeci">bool Seek(uint64_t position) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d23/threaded__io__file_8cc_source.html#l00120">threaded_io_file.cc:120</a></div></div>
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<div class="ttc" id="aclassshaka_1_1IoCache_html_a8033da711e62112877be7a6ac2186622"><div class="ttname"><a href="../../df/d4e/classshaka_1_1IoCache.html#a8033da711e62112877be7a6ac2186622">shaka::IoCache::BytesCached</a></div><div class="ttdeci">uint64_t BytesCached()</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d37/io__cache_8cc_source.html#l00128">io_cache.cc:128</a></div></div>
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<div class="ttc" id="aclassshaka_1_1IoCache_html_a7cc144c2f848725db08b3ca175475fc2"><div class="ttname"><a href="../../df/d4e/classshaka_1_1IoCache.html#a7cc144c2f848725db08b3ca175475fc2">shaka::IoCache::Read</a></div><div class="ttdeci">uint64_t Read(void *buffer, uint64_t size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d37/io__cache_8cc_source.html#l00038">io_cache.cc:38</a></div></div>
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<div class="ttc" id="aclassshaka_1_1ThreadedIoFile_html_ab8acfe4af14c1120ae6d2baa44a10583"><div class="ttname"><a href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#ab8acfe4af14c1120ae6d2baa44a10583">shaka::ThreadedIoFile::Write</a></div><div class="ttdeci">int64_t Write(const void *buffer, uint64_t length) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d23/threaded__io__file_8cc_source.html#l00086">threaded_io_file.cc:86</a></div></div>
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<div class="ttc" id="aclassshaka_1_1ThreadedIoFile_html_a79292b93c39f609b5348787a39fc77b2"><div class="ttname"><a href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a79292b93c39f609b5348787a39fc77b2">shaka::ThreadedIoFile::Close</a></div><div class="ttdeci">bool Close() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d23/threaded__io__file_8cc_source.html#l00055">threaded_io_file.cc:55</a></div></div>
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<div class="ttc" id="aclassshaka_1_1IoCache_html_ac2c7cbec6d771de00fe0cfe0b7d0e454"><div class="ttname"><a href="../../df/d4e/classshaka_1_1IoCache.html#ac2c7cbec6d771de00fe0cfe0b7d0e454">shaka::IoCache::Reopen</a></div><div class="ttdeci">void Reopen()</div><div class="ttdoc">Reopens the cache. Any data still in the cache will be lost.</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d37/io__cache_8cc_source.html#l00119">io_cache.cc:119</a></div></div>
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<div class="ttc" id="aclassshaka_1_1ThreadedIoFile_html_a2b53b72d99aad4439781e3887492452c"><div class="ttname"><a href="../../dd/d0c/classshaka_1_1ThreadedIoFile.html#a2b53b72d99aad4439781e3887492452c">shaka::ThreadedIoFile::Flush</a></div><div class="ttdeci">bool Flush() override</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d23/threaded__io__file_8cc_source.html#l00107">threaded_io_file.cc:107</a></div></div>
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<hr class="footer"/><address class="footer"><small>
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Generated on Tue Jun 22 2021 00:16:03 for Shaka Packager SDK by  <a href="http://www.doxygen.org/index.html">
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<img class="footer" src="../../doxygen.png" alt="doxygen"/>
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</a> 1.8.17
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</small></address>
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</body>
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</html>
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