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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/media/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>shaka {</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">using</span> base::subtle::NoBarrier_Load;</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">using</span> base::subtle::NoBarrier_Store;</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> ThreadedIoFile::ThreadedIoFile(std::unique_ptr<File, FileCloser> internal_file,</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  Mode mode,</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  uint64_t io_cache_size,</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  uint64_t io_block_size)</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  : File(internal_file->file_name()),</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  internal_file_(std::move(internal_file)),</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  mode_(mode),</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  cache_(io_cache_size),</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  io_buffer_(io_block_size),</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  position_(0),</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  size_(0),</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  eof_(false),</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  flushing_(false),</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  flush_complete_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  base::WaitableEvent::InitialState::NOT_SIGNALED),</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  internal_file_error_(0),</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  task_exit_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  base::WaitableEvent::InitialState::NOT_SIGNALED) {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  DCHECK(internal_file_);</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> </div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> ThreadedIoFile::~ThreadedIoFile() {}</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ae3db248116be393b18d70bb27f6aeb68"> 43</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ae3db248116be393b18d70bb27f6aeb68">ThreadedIoFile::Open</a>() {</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  DCHECK(internal_file_);</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>  <span class="keywordflow">if</span> (!internal_file_->Open())</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  position_ = 0;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  size_ = internal_file_->Size();</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>  base::WorkerPool::PostTask(FROM_HERE, base::Bind(&ThreadedIoFile::TaskHandler,</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  base::Unretained(<span class="keyword">this</span>)),</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">true</span> <span class="comment">/* task_is_slow */</span>);</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</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"><a class="line" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a85d185a7eaa1abc857540ef703ab9a"> 58</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a85d185a7eaa1abc857540ef703ab9a">ThreadedIoFile::Close</a>() {</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span> (mode_ == kOutputMode)</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e">Flush</a>();</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112">Close</a>();</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  task_exit_event_.Wait();</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">bool</span> result = internal_file_.release()->Close();</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">delete</span> <span class="keyword">this</span>;</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
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<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a5bd05e37779441004cd7ba0c33de1ad6"> 72</a></span> int64_t <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a5bd05e37779441004cd7ba0c33de1ad6">ThreadedIoFile::Read</a>(<span class="keywordtype">void</span>* buffer, uint64_t length) {</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  DCHECK_EQ(kInputMode, mode_);</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (NoBarrier_Load(&eof_) && !cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a385baed04dd0cc0d3dca20d78f61559f">BytesCached</a>())</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">if</span> (NoBarrier_Load(&internal_file_error_))</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> NoBarrier_Load(&internal_file_error_);</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </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>  uint64_t bytes_read = cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a3cb864f866af25f0ff92c367946b0945">Read</a>(buffer, length);</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  position_ += bytes_read;</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"> 86</span>  <span class="keywordflow">return</span> bytes_read;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#aa14502dd48c1c64329283f5f1340f60f"> 89</a></span> int64_t <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#aa14502dd48c1c64329283f5f1340f60f">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="l00090"></a><span class="lineno"> 90</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  DCHECK_EQ(kOutputMode, mode_);</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>  <span class="keywordflow">if</span> (NoBarrier_Load(&internal_file_error_))</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> NoBarrier_Load(&internal_file_error_);</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  uint64_t bytes_written = cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a0349796209c24a99bfe3c1bfdafb1d28">Write</a>(buffer, length);</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  position_ += bytes_written;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">if</span> (position_ > size_)</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  size_ = position_;</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"> 101</span>  <span class="keywordflow">return</span> bytes_written;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</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"><a class="line" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ac8c1f49d9e7ff55b1484129240c065f3"> 104</a></span> int64_t <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ac8c1f49d9e7ff55b1484129240c065f3">ThreadedIoFile::Size</a>() {</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  DCHECK(internal_file_);</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"> 107</span>  <span class="keywordflow">return</span> size_;</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> }</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
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<div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e"> 110</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e">ThreadedIoFile::Flush</a>() {</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  DCHECK(internal_file_);</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  DCHECK_EQ(kOutputMode, mode_);</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="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112">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="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a30faf9c8e8b367bcfebb7b642d73e7"> 120</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a30faf9c8e8b367bcfebb7b642d73e7">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="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e">Flush</a>()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (!internal_file_->Seek(position)) <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">else</span> {</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</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="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// the task.</span></div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112">Close</a>();</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  task_exit_event_.Wait();</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">bool</span> result = internal_file_->Seek(position);</div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">if</span> (!result) {</div>
|
|
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// Seek failed. Seek to logical position instead.</span></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">if</span> (!internal_file_->Seek(position_) && (position != position_)) {</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  LOG(WARNING) << <span class="stringliteral">"Seek failed. ThreadedIoFile left in invalid state."</span>;</div>
|
|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }</div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div>
|
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#ae751faea047196ba2770f5bf90649185">Reopen</a>();</div>
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|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  eof_ = <span class="keyword">false</span>;</div>
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|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  base::WorkerPool::PostTask(</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  FROM_HERE,</div>
|
|
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  base::Bind(&ThreadedIoFile::TaskHandler, base::Unretained(<span class="keyword">this</span>)),</div>
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|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">true</span> <span class="comment">/* task_is_slow */</span>);</div>
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|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> (!result) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  }</div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  position_ = position;</div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> <span class="keyword">true</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> </div>
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<div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a23949d75527c8de9f02e749c7744f11e"> 149</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a23949d75527c8de9f02e749c7744f11e">ThreadedIoFile::Tell</a>(uint64_t* position) {</div>
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|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  DCHECK(position);</div>
|
|
<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"> 152</span>  *position = position_;</div>
|
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<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> </div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="keywordtype">void</span> ThreadedIoFile::TaskHandler() {</div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">if</span> (mode_ == kInputMode)</div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  RunInInputMode();</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">else</span></div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  RunInOutputMode();</div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  task_exit_event_.Signal();</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> }</div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="keywordtype">void</span> ThreadedIoFile::RunInInputMode() {</div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  DCHECK(internal_file_);</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  DCHECK_EQ(kInputMode, mode_);</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  int64_t read_result = internal_file_->Read(&io_buffer_[0],</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  io_buffer_.size());</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> (read_result <= 0) {</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  NoBarrier_Store(&eof_, read_result == 0);</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  NoBarrier_Store(&internal_file_error_, read_result);</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112">Close</a>();</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> (cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a0349796209c24a99bfe3c1bfdafb1d28">Write</a>(&io_buffer_[0], read_result) == 0) {</div>
|
|
<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>  }</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</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> <span class="keywordtype">void</span> ThreadedIoFile::RunInOutputMode() {</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  DCHECK(internal_file_);</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  DCHECK_EQ(kOutputMode, mode_);</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  uint64_t write_bytes = cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a3cb864f866af25f0ff92c367946b0945">Read</a>(&io_buffer_[0], io_buffer_.size());</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">if</span> (write_bytes == 0) {</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (flushing_) {</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#ae751faea047196ba2770f5bf90649185">Reopen</a>();</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  flushing_ = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  flush_complete_event_.Signal();</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</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>  uint64_t bytes_written(0);</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">while</span> (bytes_written < write_bytes) {</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  int64_t write_result = internal_file_->Write(</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  &io_buffer_[bytes_written], write_bytes - bytes_written);</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">if</span> (write_result < 0) {</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  NoBarrier_Store(&internal_file_error_, write_result);</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  cache_.<a class="code" href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112">Close</a>();</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  }</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  bytes_written += write_result;</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  }</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</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> </div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> } <span class="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> } <span class="comment">// namespace shaka</span></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1ThreadedIoFile_html_a23949d75527c8de9f02e749c7744f11e"><div class="ttname"><a href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a23949d75527c8de9f02e749c7744f11e">shaka::media::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#l00149">threaded_io_file.cc:149</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1ThreadedIoFile_html_a4a30faf9c8e8b367bcfebb7b642d73e7"><div class="ttname"><a href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a30faf9c8e8b367bcfebb7b642d73e7">shaka::media::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>
|
|
<div class="ttc" id="classshaka_1_1media_1_1ThreadedIoFile_html_a4c8d46b1a16fba8bf4267c0a11fa856e"><div class="ttname"><a href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e">shaka::media::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#l00110">threaded_io_file.cc:110</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1IoCache_html_a23dfcb4d031d76e980e41d1b1bec7112"><div class="ttname"><a href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112">shaka::media::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#l00111">io_cache.cc:111</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1ThreadedIoFile_html_aa14502dd48c1c64329283f5f1340f60f"><div class="ttname"><a href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#aa14502dd48c1c64329283f5f1340f60f">shaka::media::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#l00089">threaded_io_file.cc:89</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1IoCache_html_ae751faea047196ba2770f5bf90649185"><div class="ttname"><a href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#ae751faea047196ba2770f5bf90649185">shaka::media::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#l00118">io_cache.cc:118</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1IoCache_html_a3cb864f866af25f0ff92c367946b0945"><div class="ttname"><a href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a3cb864f866af25f0ff92c367946b0945">shaka::media::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#l00040">io_cache.cc:40</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1ThreadedIoFile_html_ae3db248116be393b18d70bb27f6aeb68"><div class="ttname"><a href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ae3db248116be393b18d70bb27f6aeb68">shaka::media::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#l00043">threaded_io_file.cc:43</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1ThreadedIoFile_html_a4a85d185a7eaa1abc857540ef703ab9a"><div class="ttname"><a href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a85d185a7eaa1abc857540ef703ab9a">shaka::media::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#l00058">threaded_io_file.cc:58</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1IoCache_html_a385baed04dd0cc0d3dca20d78f61559f"><div class="ttname"><a href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a385baed04dd0cc0d3dca20d78f61559f">shaka::media::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#l00127">io_cache.cc:127</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1ThreadedIoFile_html_ac8c1f49d9e7ff55b1484129240c065f3"><div class="ttname"><a href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ac8c1f49d9e7ff55b1484129240c065f3">shaka::media::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#l00104">threaded_io_file.cc:104</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1IoCache_html_a0349796209c24a99bfe3c1bfdafb1d28"><div class="ttname"><a href="../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a0349796209c24a99bfe3c1bfdafb1d28">shaka::media::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#l00068">io_cache.cc:68</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1ThreadedIoFile_html_a5bd05e37779441004cd7ba0c33de1ad6"><div class="ttname"><a href="../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a5bd05e37779441004cd7ba0c33de1ad6">shaka::media::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#l00072">threaded_io_file.cc:72</a></div></div>
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