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<div class="title">udp_file_posix.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">#include <arpa/inet.h></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <errno.h></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <gflags/gflags.h></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <strings.h></span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <sys/socket.h></span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <unistd.h></span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <limits></span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "packager/base/strings/string_number_conversions.h"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// TODO(tinskip): Adapt to work with winsock.</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> DEFINE_string(udp_interface_address,</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="stringliteral">"0.0.0.0"</span>,</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="stringliteral">"IP address of the interface over which to receive UDP unicast"</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="stringliteral">" or multicast streams"</span>);</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">const</span> <span class="keywordtype">int</span> kInvalidSocket(-1);</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> <span class="keywordtype">bool</span> StringToIpv4Address(<span class="keyword">const</span> std::string& addr_in, uint32_t* addr_out) {</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  DCHECK(addr_out);</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"> 38</span>  *addr_out = 0;</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">size_t</span> start_pos(0);</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">size_t</span> end_pos(0);</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < 4; ++i) {</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  end_pos = addr_in.find(<span class="charliteral">'.'</span>, start_pos);</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">if</span> ((end_pos == std::string::npos) != (i == 3))</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">unsigned</span> addr_byte;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">if</span> (!base::StringToUint(addr_in.substr(start_pos, end_pos - start_pos),</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  &addr_byte)</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  || (addr_byte > 255))</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  *addr_out <<= 8;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  *addr_out |= addr_byte;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  start_pos = end_pos + 1;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  }</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</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> <span class="keywordtype">bool</span> StringToIpv4AddressAndPort(<span class="keyword">const</span> std::string& addr_and_port,</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  uint32_t* addr,</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  uint16_t* port) {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  DCHECK(addr);</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  DCHECK(port);</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">size_t</span> colon_pos = addr_and_port.find(<span class="charliteral">':'</span>);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">if</span> (colon_pos == std::string::npos) {</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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">if</span> (!StringToIpv4Address(addr_and_port.substr(0, colon_pos), addr))</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">unsigned</span> port_value;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> (!base::StringToUint(addr_and_port.substr(colon_pos + 1),</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  &port_value) ||</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  (port_value > 65535))</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  *port = port_value;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</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> </div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keywordtype">bool</span> IsIpv4MulticastAddress(uint32_t addr) {</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> (addr & 0xf0000000) == 0xe0000000;</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"> 82</span> } <span class="comment">// anonymous namespace</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a9668328623027330d9552f116d61ae86"> 84</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="l00085"></a><span class="lineno"> 85</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="l00086"></a><span class="lineno"> 86</span>  socket_(kInvalidSocket) {}</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> UdpFile::~UdpFile() {}</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#aeff24fee715763b5a62edd0d3b3c114e"> 90</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="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span> (socket_ != kInvalidSocket) {</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  close(socket_);</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  socket_ = kInvalidSocket;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keyword">delete</span> <span class="keyword">this</span>;</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
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<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a9e6387d6c23e6cfd7a91ed432fe3e81c"> 99</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="l00100"></a><span class="lineno"> 100</span>  DCHECK(buffer);</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  DCHECK_GE(length, 65535u)</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  << <span class="stringliteral">"Buffer may be too small to read entire datagram."</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"> 104</span>  <span class="keywordflow">if</span> (socket_ == kInvalidSocket)</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> -1;</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>  int64_t result;</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">do</span> {</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  result = recvfrom(socket_, buffer, length, 0, NULL, 0);</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  } <span class="keywordflow">while</span> ((result == -1) && (errno == EINTR));</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> result;</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> </div>
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<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a7039c2dbc214f755a9eaaab4d3e10cb9"> 115</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="l00116"></a><span class="lineno"> 116</span>  NOTIMPLEMENTED();</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> -1;</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="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a852424c6982850686f0419e84e222708"> 120</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="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (socket_ == kInvalidSocket)</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> -1;</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>  <span class="keywordflow">return</span> std::numeric_limits<int64_t>::max();</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> </div>
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<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a66276fd0b6a7effe314ccd63e223d149"> 127</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="l00128"></a><span class="lineno"> 128</span>  NOTIMPLEMENTED();</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> }</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
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<div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a78fa34d29e01054536a19eaac7ed51c4"> 132</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="l00133"></a><span class="lineno"> 133</span>  NOTIMPLEMENTED();</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> }</div>
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<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"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#affb3b5c69847e5f40671e65a7110358c"> 137</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="l00138"></a><span class="lineno"> 138</span>  NOTIMPLEMENTED();</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> <span class="keyword">false</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> </div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="keyword">class </span>ScopedSocket {</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">explicit</span> ScopedSocket(<span class="keywordtype">int</span> sock_fd)</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  : sock_fd_(sock_fd) {}</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  ~ScopedSocket() {</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (sock_fd_ != kInvalidSocket)</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  close(sock_fd_);</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>  <span class="keywordtype">int</span> <span class="keyword">get</span>() { <span class="keywordflow">return</span> sock_fd_; }</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">int</span> release() {</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">int</span> socket = sock_fd_;</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  sock_fd_ = kInvalidSocket;</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> socket;</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordtype">int</span> sock_fd_;</div>
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<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>  DISALLOW_COPY_AND_ASSIGN(ScopedSocket);</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> };</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a67890562cd5864afdffeb7326af91df0"> 166</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d7/d7a/classshaka_1_1media_1_1UdpFile.html#a67890562cd5864afdffeb7326af91df0">UdpFile::Open</a>() {</div>
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|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  DCHECK_EQ(kInvalidSocket, socket_);</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// TODO(tinskip): Support IPv6 addresses.</span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  uint32_t dest_addr;</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  uint16_t dest_port;</div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span> (!StringToIpv4AddressAndPort(<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="l00173"></a><span class="lineno"> 173</span>  &dest_addr,</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  &dest_port)) {</div>
|
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  LOG(ERROR) << <span class="stringliteral">"Malformed IPv4 address:port UDP stream specifier."</span>;</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  }</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  ScopedSocket new_socket(socket(AF_INET, SOCK_DGRAM, 0));</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">if</span> (new_socket.get() == kInvalidSocket) {</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  LOG(ERROR) << <span class="stringliteral">"Could not allocate socket."</span>;</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">struct </span>sockaddr_in local_sock_addr;</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  bzero(&local_sock_addr, <span class="keyword">sizeof</span>(local_sock_addr));</div>
|
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  local_sock_addr.sin_family = AF_INET;</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  local_sock_addr.sin_port = htons(dest_port);</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  local_sock_addr.sin_addr.s_addr = htonl(dest_addr);</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (bind(new_socket.get(),</div>
|
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">reinterpret_cast<</span>struct sockaddr*<span class="keyword">></span>(&local_sock_addr),</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keyword">sizeof</span>(local_sock_addr))) {</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  LOG(ERROR) << <span class="stringliteral">"Could not bind UDP socket"</span>;</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  }</div>
|
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (IsIpv4MulticastAddress(dest_addr)) {</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  uint32_t if_addr;</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">if</span> (!StringToIpv4Address(FLAGS_udp_interface_address, &if_addr)) {</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  LOG(ERROR) << <span class="stringliteral">"Malformed IPv4 address for interface."</span>;</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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="keyword">struct </span>ip_mreq multicast_group;</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  multicast_group.imr_multiaddr.s_addr = htonl(dest_addr);</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  multicast_group.imr_interface.s_addr = htonl(if_addr);</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordflow">if</span> (setsockopt(new_socket.get(),</div>
|
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  IPPROTO_IP,</div>
|
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  IP_ADD_MEMBERSHIP,</div>
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|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  &multicast_group,</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keyword">sizeof</span>(multicast_group)) < 0) {</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  LOG(ERROR) << <span class="stringliteral">"Failed to join multicast group."</span>;</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</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>  socket_ = new_socket.release();</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> }</div>
|
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> } <span class="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> } <span class="comment">// namespace shaka</span></div>
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<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="../../dc/ddf/udp__file__posix_8cc_source.html#l00166">udp_file_posix.cc:166</a></div></div>
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<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="../../dc/ddf/udp__file__posix_8cc_source.html#l00115">udp_file_posix.cc:115</a></div></div>
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<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>
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<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="../../dc/ddf/udp__file__posix_8cc_source.html#l00099">udp_file_posix.cc:99</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="../../dc/ddf/udp__file__posix_8cc_source.html#l00137">udp_file_posix.cc:137</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="../../dc/ddf/udp__file__posix_8cc_source.html#l00127">udp_file_posix.cc:127</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="../../dc/ddf/udp__file__posix_8cc_source.html#l00084">udp_file_posix.cc:84</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="../../dc/ddf/udp__file__posix_8cc_source.html#l00132">udp_file_posix.cc:132</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="../../dc/ddf/udp__file__posix_8cc_source.html#l00090">udp_file_posix.cc:90</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="../../dc/ddf/udp__file__posix_8cc_source.html#l00120">udp_file_posix.cc:120</a></div></div>
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Generated on Tue Aug 23 2016 20:33:15 for DASH Media Packaging SDK by  <a href="http://www.doxygen.org/index.html">
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</a> 1.8.6
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