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<div class="title">udp_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 2014 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/media/file/udp_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">#if defined(OS_WIN)</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor"></span><span class="preprocessor">#include <windows.h></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <ws2tcpip.h></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#define close closesocket</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#include <arpa/inet.h></span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <errno.h></span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <strings.h></span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <sys/socket.h></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <unistd.h></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#define INVALID_SOCKET -1</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span><span class="preprocessor">#endif // defined(OS_WIN)</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "packager/media/file/udp_options.h"</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keywordtype">bool</span> IsIpv4MulticastAddress(<span class="keyword">const</span> <span class="keyword">struct</span> in_addr& addr) {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">return</span> (ntohl(addr.s_addr) & 0xf0000000) == 0xe0000000;</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> }</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> } <span class="comment">// anonymous namespace</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a9668328623027330d9552f116d61ae86"> 38</a></span> <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a9668328623027330d9552f116d61ae86">UdpFile::UdpFile</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* file_name) :</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <a class="code" href="../../d3/d61/classshaka_1_1media_1_1File.html">File</a>(file_name),</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  socket_(INVALID_SOCKET) {}</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> UdpFile::~UdpFile() {}</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
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<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#aeff24fee715763b5a62edd0d3b3c114e"> 44</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#aeff24fee715763b5a62edd0d3b3c114e">UdpFile::Close</a>() {</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (socket_ != INVALID_SOCKET) {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  close(socket_);</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  socket_ = INVALID_SOCKET;</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>  <span class="keyword">delete</span> <span class="keyword">this</span>;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> }</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a9e6387d6c23e6cfd7a91ed432fe3e81c"> 53</a></span> int64_t <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a9e6387d6c23e6cfd7a91ed432fe3e81c">UdpFile::Read</a>(<span class="keywordtype">void</span>* buffer, uint64_t length) {</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  DCHECK(buffer);</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  DCHECK_GE(length, 65535u)</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  << <span class="stringliteral">"Buffer may be too small to read entire datagram."</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"> 58</span>  <span class="keywordflow">if</span> (socket_ == INVALID_SOCKET)</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> -1;</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>  int64_t result;</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">do</span> {</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  result = recvfrom(socket_, reinterpret_cast<char *>(buffer),</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  length, 0, NULL, 0);</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  } <span class="keywordflow">while</span> ((result == -1) && (errno == EINTR));</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="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="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a7039c2dbc214f755a9eaaab4d3e10cb9"> 70</a></span> int64_t <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a7039c2dbc214f755a9eaaab4d3e10cb9">UdpFile::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="l00071"></a><span class="lineno"> 71</span>  NOTIMPLEMENTED();</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> -1;</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> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a852424c6982850686f0419e84e222708"> 75</a></span> int64_t <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a852424c6982850686f0419e84e222708">UdpFile::Size</a>() {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (socket_ == INVALID_SOCKET)</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> -1;</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">return</span> std::numeric_limits<int64_t>::max();</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</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"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a66276fd0b6a7effe314ccd63e223d149"> 82</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a66276fd0b6a7effe314ccd63e223d149">UdpFile::Flush</a>() {</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  NOTIMPLEMENTED();</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span> <span class="keyword">false</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"> 86</span> </div>
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<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a78fa34d29e01054536a19eaac7ed51c4"> 87</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a78fa34d29e01054536a19eaac7ed51c4">UdpFile::Seek</a>(uint64_t position) {</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  NOTIMPLEMENTED();</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
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<div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#affb3b5c69847e5f40671e65a7110358c"> 92</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#affb3b5c69847e5f40671e65a7110358c">UdpFile::Tell</a>(uint64_t* position) {</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  NOTIMPLEMENTED();</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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> </div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor">#if defined(OS_WIN)</span></div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor"></span><span class="keyword">class </span>LibWinsockInitializer {</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  LibWinsockInitializer() {</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  WSADATA wsa_data;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  error_ = WSAStartup(MAKEWORD(2, 2), &wsa_data);</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> </div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  ~LibWinsockInitializer() {</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (error_ == 0) WSACleanup();</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"> 109</span>  <span class="keywordtype">int</span> error()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> error_; }</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="keyword">private</span>:</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">int</span> error_;</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> <span class="preprocessor">#endif // defined(OS_WIN)</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">class </span>ScopedSocket {</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">explicit</span> ScopedSocket(SOCKET sock_fd)</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  : sock_fd_(sock_fd) {}</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  ~ScopedSocket() {</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">if</span> (sock_fd_ != INVALID_SOCKET)</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  close(sock_fd_);</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"> 125</span> </div>
|
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  SOCKET <span class="keyword">get</span>() { <span class="keywordflow">return</span> sock_fd_; }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  SOCKET release() {</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  SOCKET socket = sock_fd_;</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  sock_fd_ = INVALID_SOCKET;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> socket;</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</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>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  SOCKET sock_fd_;</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  DISALLOW_COPY_AND_ASSIGN(ScopedSocket);</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> </div>
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<div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a67890562cd5864afdffeb7326af91df0"> 140</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a67890562cd5864afdffeb7326af91df0">UdpFile::Open</a>() {</div>
|
|
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="preprocessor">#if defined(OS_WIN)</span></div>
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|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor"></span> <span class="keyword">static</span> LibWinsockInitializer lib_winsock_initializer;</div>
|
|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> (lib_winsock_initializer.error() != 0) {</div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  LOG(ERROR) << <span class="stringliteral">"Winsock start up failed with error "</span></div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  << lib_winsock_initializer.error();</div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div>
|
|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="preprocessor">#endif // defined(OS_WIN)</span></div>
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|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="preprocessor"></span></div>
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|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  DCHECK_EQ(INVALID_SOCKET, socket_);</div>
|
|
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  std::unique_ptr<UdpOptions> options =</div>
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|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="../../d4/d8e/classshaka_1_1media_1_1UdpOptions.html#a0f105a42c4f852f083827892138a4f25">UdpOptions::ParseFromString</a>(<a class="code" href="../../d3/d61/classshaka_1_1media_1_1File.html#abe158b9e7b1e073956a16c55a8fcf5f4">file_name</a>());</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">if</span> (!options)</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  ScopedSocket new_socket(socket(AF_INET, SOCK_DGRAM, 0));</div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (new_socket.get() == INVALID_SOCKET) {</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  LOG(ERROR) << <span class="stringliteral">"Could not allocate socket."</span>;</div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
|
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">struct </span>in_addr local_in_addr = {0};</div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (inet_pton(AF_INET, options->address().c_str(),</div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  &local_in_addr) != 1) {</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  LOG(ERROR) << <span class="stringliteral">"Malformed IPv4 address "</span> << options->address();</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">struct </span>sockaddr_in local_sock_addr = {0};</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="comment">// TODO(kqyang): Support IPv6.</span></div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  local_sock_addr.sin_family = AF_INET;</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  local_sock_addr.sin_port = htons(options->port());</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> is_multicast = IsIpv4MulticastAddress(local_in_addr);</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">if</span> (is_multicast) {</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  local_sock_addr.sin_addr.s_addr = htonl(INADDR_ANY);</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  local_sock_addr.sin_addr = local_in_addr;</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>  <span class="keywordflow">if</span> (options->reuse()) {</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> optval = 1;</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">if</span> (setsockopt(new_socket.get(), SOL_SOCKET, SO_REUSEADDR,</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">reinterpret_cast<</span><span class="keyword">const </span><span class="keywordtype">char</span> *<span class="keyword">></span>(&optval),</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">sizeof</span>(optval)) < 0) {</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  LOG(ERROR)</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  << <span class="stringliteral">"Could not apply the SO_REUSEADDR property to the UDP socket"</span>;</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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>  }</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">if</span> (bind(new_socket.get(),</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">reinterpret_cast<</span>struct sockaddr*<span class="keyword">></span>(&local_sock_addr),</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keyword">sizeof</span>(local_sock_addr))) {</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  LOG(ERROR) << <span class="stringliteral">"Could not bind UDP socket"</span>;</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">if</span> (is_multicast) {</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">struct </span>ip_mreq multicast_group;</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  multicast_group.imr_multiaddr = local_in_addr;</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">if</span> (options->interface_address().empty()) {</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  LOG(ERROR) << <span class="stringliteral">"Interface address is required for multicast, which can be "</span></div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="stringliteral">"specified in udp url, e.g. "</span></div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="stringliteral">"udp://ip:port?interface=interface_ip."</span>;</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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>  <span class="keywordflow">if</span> (inet_pton(AF_INET, options->interface_address().c_str(),</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  &multicast_group.imr_interface) != 1) {</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  LOG(ERROR) << <span class="stringliteral">"Malformed IPv4 interface address "</span></div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  << options->interface_address();</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</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>  <span class="keywordflow">if</span> (setsockopt(new_socket.get(), IPPROTO_IP, IP_ADD_MEMBERSHIP,</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">reinterpret_cast<</span><span class="keyword">const </span><span class="keywordtype">char</span> *<span class="keyword">></span>(&multicast_group),</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">sizeof</span>(multicast_group)) < 0) {</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  LOG(ERROR) << <span class="stringliteral">"Failed to join multicast group."</span>;</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">// Set timeout if needed.</span></div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">if</span> (options->timeout_us() != 0) {</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keyword">struct </span>timeval tv;</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  tv.tv_sec = options->timeout_us() / 1000000;</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  tv.tv_usec = options->timeout_us() % 1000000;</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">if</span> (setsockopt(new_socket.get(), SOL_SOCKET, SO_RCVTIMEO,</div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keyword">reinterpret_cast<</span><span class="keywordtype">char</span>*<span class="keyword">></span>(&tv), <span class="keyword">sizeof</span>(tv)) < 0) {</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  LOG(ERROR) << <span class="stringliteral">"Failed to set socket timeout."</span>;</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  socket_ = new_socket.release();</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> }</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> </div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> } <span class="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> } <span class="comment">// namespace shaka</span></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_a67890562cd5864afdffeb7326af91df0"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a67890562cd5864afdffeb7326af91df0">shaka::media::UdpFile::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="../../db/d66/udp__file_8cc_source.html#l00140">udp_file.cc:140</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_a7039c2dbc214f755a9eaaab4d3e10cb9"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a7039c2dbc214f755a9eaaab4d3e10cb9">shaka::media::UdpFile::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="../../db/d66/udp__file_8cc_source.html#l00070">udp_file.cc:70</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1File_html"><div class="ttname"><a href="../../d3/d61/classshaka_1_1media_1_1File.html">shaka::media::File</a></div><div class="ttdoc">Define an abstract file interface. </div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d4d/file_8h_source.html#l00024">file.h:24</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_a9e6387d6c23e6cfd7a91ed432fe3e81c"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a9e6387d6c23e6cfd7a91ed432fe3e81c">shaka::media::UdpFile::Read</a></div><div class="ttdeci">int64_t Read(void *buffer, uint64_t length) override</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d66/udp__file_8cc_source.html#l00053">udp_file.cc:53</a></div></div>
|
|
<div class="ttc" id="classshaka_1_1media_1_1UdpOptions_html_a0f105a42c4f852f083827892138a4f25"><div class="ttname"><a href="../../d4/d8e/classshaka_1_1media_1_1UdpOptions.html#a0f105a42c4f852f083827892138a4f25">shaka::media::UdpOptions::ParseFromString</a></div><div class="ttdeci">static std::unique_ptr< UdpOptions > ParseFromString(base::StringPiece udp_url)</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d1d/udp__options_8cc_source.html#l00073">udp_options.cc:73</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_affb3b5c69847e5f40671e65a7110358c"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#affb3b5c69847e5f40671e65a7110358c">shaka::media::UdpFile::Tell</a></div><div class="ttdeci">bool Tell(uint64_t *position) override</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d66/udp__file_8cc_source.html#l00092">udp_file.cc:92</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_a66276fd0b6a7effe314ccd63e223d149"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a66276fd0b6a7effe314ccd63e223d149">shaka::media::UdpFile::Flush</a></div><div class="ttdeci">bool Flush() override</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d66/udp__file_8cc_source.html#l00082">udp_file.cc:82</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_a9668328623027330d9552f116d61ae86"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a9668328623027330d9552f116d61ae86">shaka::media::UdpFile::UdpFile</a></div><div class="ttdeci">UdpFile(const char *address_and_port)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d66/udp__file_8cc_source.html#l00038">udp_file.cc:38</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1File_html_abe158b9e7b1e073956a16c55a8fcf5f4"><div class="ttname"><a href="../../d3/d61/classshaka_1_1media_1_1File.html#abe158b9e7b1e073956a16c55a8fcf5f4">shaka::media::File::file_name</a></div><div class="ttdeci">const std::string & file_name() const </div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d4d/file_8h_source.html#l00091">file.h:91</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_a78fa34d29e01054536a19eaac7ed51c4"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a78fa34d29e01054536a19eaac7ed51c4">shaka::media::UdpFile::Seek</a></div><div class="ttdeci">bool Seek(uint64_t position) override</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d66/udp__file_8cc_source.html#l00087">udp_file.cc:87</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_aeff24fee715763b5a62edd0d3b3c114e"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#aeff24fee715763b5a62edd0d3b3c114e">shaka::media::UdpFile::Close</a></div><div class="ttdeci">bool Close() override</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d66/udp__file_8cc_source.html#l00044">udp_file.cc:44</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1UdpFile_html_a852424c6982850686f0419e84e222708"><div class="ttname"><a href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a852424c6982850686f0419e84e222708">shaka::media::UdpFile::Size</a></div><div class="ttdeci">int64_t Size() override</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d66/udp__file_8cc_source.html#l00075">udp_file.cc:75</a></div></div>
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