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<li class="navelem"><a class="el" href="../../dir_39dc0668bd5a501998f94e8b4e546c71.html">media</a></li><li class="navelem"><a class="el" href="../../dir_279fd47bebb21302c25cfb685e84c359.html">file</a></li> </ul>
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<div class="title">io_cache.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/io_cache.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 <string.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 <algorithm></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>edash_packager {</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::AutoLock;</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">using</span> base::AutoUnlock;</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> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> IoCache::IoCache(uint64_t cache_size)</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  : cache_size_(cache_size),</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  read_event_(false, false),</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  write_event_(false, false),</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="comment">// Make the buffer one byte larger than the cache so that when the</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="comment">// condition r_ptr == w_ptr is unambiguous (buffer empty).</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  circular_buffer_(cache_size + 1),</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  end_ptr_(&circular_buffer_[0] + cache_size + 1),</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  r_ptr_(circular_buffer_.data()),</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  w_ptr_(circular_buffer_.data()),</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  closed_(false) {}</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> IoCache::~IoCache() {</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4588dbf505a08da8423b525ce24fee92">Close</a>();</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> }</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a462bd5ddce8041eaa109271fd0d155a9"> 38</a></span> uint64_t <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a462bd5ddce8041eaa109271fd0d155a9">IoCache::Read</a>(<span class="keywordtype">void</span>* buffer, uint64_t size) {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  DCHECK(buffer);</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>  AutoLock lock(lock_);</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">while</span> (!closed_ && (BytesCachedInternal() == 0)) {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  AutoUnlock unlock(lock_);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  write_event_.Wait();</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> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  size = std::min(size, BytesCachedInternal());</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  uint64_t first_chunk_size(std::min(size, static_cast<uint64_t>(</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  end_ptr_ - r_ptr_)));</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  memcpy(buffer, r_ptr_, first_chunk_size);</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  r_ptr_ += first_chunk_size;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  DCHECK_GE(end_ptr_, r_ptr_);</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">if</span> (r_ptr_ == end_ptr_)</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  r_ptr_ = &circular_buffer_[0];</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  uint64_t second_chunk_size(size - first_chunk_size);</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (second_chunk_size) {</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  memcpy(static_cast<uint8_t*>(buffer) + first_chunk_size, r_ptr_,</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  second_chunk_size);</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  r_ptr_ += second_chunk_size;</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  DCHECK_GT(end_ptr_, r_ptr_);</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>  read_event_.Signal();</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">return</span> size;</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> </div>
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<div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4b7ee97ec07a6b2702ae4b58c9df4413"> 66</a></span> uint64_t <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4b7ee97ec07a6b2702ae4b58c9df4413">IoCache::Write</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* buffer, uint64_t size) {</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  DCHECK(buffer);</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>  <span class="keyword">const</span> uint8_t* r_ptr(static_cast<const uint8_t*>(buffer));</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  uint64_t bytes_left(size);</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">while</span> (bytes_left) {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  AutoLock lock(lock_);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">while</span> (!closed_ && (BytesFreeInternal() == 0)) {</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  AutoUnlock unlock(lock_);</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  read_event_.Wait();</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> (closed_)</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> 0;</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 write_size(std::min(bytes_left, BytesFreeInternal()));</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  uint64_t first_chunk_size(std::min(write_size, static_cast<uint64_t>(</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  end_ptr_ - w_ptr_)));</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  memcpy(w_ptr_, r_ptr, first_chunk_size);</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  w_ptr_ += first_chunk_size;</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  DCHECK_GE(end_ptr_, w_ptr_);</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (w_ptr_ == end_ptr_)</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  w_ptr_ = &circular_buffer_[0];</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  r_ptr += first_chunk_size;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  uint64_t second_chunk_size(write_size - first_chunk_size);</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> (second_chunk_size) {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  memcpy(w_ptr_, r_ptr, second_chunk_size);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  w_ptr_ += second_chunk_size;</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  DCHECK_GT(end_ptr_, w_ptr_);</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  r_ptr += second_chunk_size;</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>  bytes_left -= write_size;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  write_event_.Signal();</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> size;</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> </div>
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<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ae8ed4943296a88e5d5356347e63c6a42"> 102</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ae8ed4943296a88e5d5356347e63c6a42">IoCache::Clear</a>() {</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  AutoLock lock(lock_);</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  r_ptr_ = w_ptr_ = circular_buffer_.data();</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// Let any writers know that there is room in the cache.</span></div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  read_event_.Signal();</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> }</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"><a class="line" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4588dbf505a08da8423b525ce24fee92"> 109</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4588dbf505a08da8423b525ce24fee92">IoCache::Close</a>() {</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  AutoLock lock(lock_);</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  closed_ = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  read_event_.Signal();</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  write_event_.Signal();</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> }</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a60aed7e0d5b1bf784cbc32bb75e1fb5b"> 116</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a60aed7e0d5b1bf784cbc32bb75e1fb5b">IoCache::Reopen</a>() {</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  AutoLock lock(lock_);</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  CHECK(closed_);</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  r_ptr_ = w_ptr_ = circular_buffer_.data();</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  closed_ = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  read_event_.Reset();</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  write_event_.Reset();</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> }</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
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<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a0fe59125434e46c2ea5474cfc9f0e95c"> 125</a></span> uint64_t <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a0fe59125434e46c2ea5474cfc9f0e95c">IoCache::BytesCached</a>() {</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  AutoLock lock(lock_);</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">return</span> BytesCachedInternal();</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> }</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
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<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ab5f7b9c5bc61e33f91cef7726f222586"> 130</a></span> uint64_t <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ab5f7b9c5bc61e33f91cef7726f222586">IoCache::BytesFree</a>() {</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  AutoLock lock(lock_);</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">return</span> BytesFreeInternal();</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> uint64_t IoCache::BytesCachedInternal() {</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> (r_ptr_ <= w_ptr_)</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  ? w_ptr_ - r_ptr_</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  : (end_ptr_ - r_ptr_) + (w_ptr_ - circular_buffer_.data());</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> }</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> uint64_t IoCache::BytesFreeInternal() {</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">return</span> cache_size_ - BytesCachedInternal();</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div>
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<div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ace4946f4ecb34f84c4750d276404a3e5"> 145</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ace4946f4ecb34f84c4750d276404a3e5">IoCache::WaitUntilEmptyOrClosed</a>() {</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  AutoLock lock(lock_);</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">while</span> (!closed_ && BytesCachedInternal()) {</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  AutoUnlock unlock(lock_);</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  read_event_.Wait();</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"> 152</span> </div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> } <span class="comment">// namespace edash_packager</span></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1IoCache_html_a0fe59125434e46c2ea5474cfc9f0e95c"><div class="ttname"><a href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a0fe59125434e46c2ea5474cfc9f0e95c">edash_packager::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#l00125">io_cache.cc:125</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1IoCache_html_a60aed7e0d5b1bf784cbc32bb75e1fb5b"><div class="ttname"><a href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a60aed7e0d5b1bf784cbc32bb75e1fb5b">edash_packager::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#l00116">io_cache.cc:116</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1IoCache_html_a4588dbf505a08da8423b525ce24fee92"><div class="ttname"><a href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4588dbf505a08da8423b525ce24fee92">edash_packager::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#l00109">io_cache.cc:109</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1IoCache_html_ace4946f4ecb34f84c4750d276404a3e5"><div class="ttname"><a href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ace4946f4ecb34f84c4750d276404a3e5">edash_packager::media::IoCache::WaitUntilEmptyOrClosed</a></div><div class="ttdeci">void WaitUntilEmptyOrClosed()</div><div class="ttdoc">Waits until the cache is empty or has been closed. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d37/io__cache_8cc_source.html#l00145">io_cache.cc:145</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1IoCache_html_a4b7ee97ec07a6b2702ae4b58c9df4413"><div class="ttname"><a href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4b7ee97ec07a6b2702ae4b58c9df4413">edash_packager::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#l00066">io_cache.cc:66</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1IoCache_html_ab5f7b9c5bc61e33f91cef7726f222586"><div class="ttname"><a href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ab5f7b9c5bc61e33f91cef7726f222586">edash_packager::media::IoCache::BytesFree</a></div><div class="ttdeci">uint64_t BytesFree()</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d37/io__cache_8cc_source.html#l00130">io_cache.cc:130</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1IoCache_html_ae8ed4943296a88e5d5356347e63c6a42"><div class="ttname"><a href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ae8ed4943296a88e5d5356347e63c6a42">edash_packager::media::IoCache::Clear</a></div><div class="ttdeci">void Clear()</div><div class="ttdoc">Empties the cache. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d37/io__cache_8cc_source.html#l00102">io_cache.cc:102</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1IoCache_html_a462bd5ddce8041eaa109271fd0d155a9"><div class="ttname"><a href="../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a462bd5ddce8041eaa109271fd0d155a9">edash_packager::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#l00038">io_cache.cc:38</a></div></div>
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Generated on Fri May 13 2016 19:37:57 for DASH Media Packaging SDK by  <a href="http://www.doxygen.org/index.html">
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