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<div class="title">SocketProfilingConnection.cpp</div> </div>
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<a href="_socket_profiling_connection_8cpp.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Copyright © 2019 Arm Ltd. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;</div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_socket_profiling_connection_8hpp.xhtml">SocketProfilingConnection.hpp</a>&quot;</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;</div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &quot;common/include/SocketConnectionException.hpp&quot;</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;cerrno&gt;</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &lt;fcntl.h&gt;</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="keyword">using namespace </span><a class="code" href="namespacearmnn_utils.xhtml">armnnUtils</a>;</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearmnn.xhtml">armnn</a></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;{</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">namespace </span>profiling</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;{</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#aba0a393ed98758e76bd30d2862e0740e"> 21</a></span>&#160;<a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#aba0a393ed98758e76bd30d2862e0740e">SocketProfilingConnection::SocketProfilingConnection</a>()</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;{</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <a class="code" href="namespacearmnn_utils_1_1_sockets.xhtml#a248c764067ee60c03ee370784c49f353">Sockets::Initialize</a>();</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; memset(m_Socket, 0, <span class="keyword">sizeof</span>(m_Socket));</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="comment">// Note: we&#39;re using Linux specific SOCK_CLOEXEC flag.</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; m_Socket[0].fd = socket(PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; <span class="keywordflow">if</span> (m_Socket[0].fd == -1)</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Socket construction failed: &quot;</span>) + strerror(errno),</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; m_Socket[0].fd,</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; errno);</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; }</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="comment">// Connect to the named unix domain socket.</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; sockaddr_un server{};</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; memset(&amp;server, 0, <span class="keyword">sizeof</span>(sockaddr_un));</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="comment">// As m_GatorNamespace begins with a null character we need to ignore that when getting its length.</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; memcpy(server.sun_path, m_GatorNamespace, strlen(m_GatorNamespace + 1) + 1);</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; server.sun_family = AF_UNIX;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keywordflow">if</span> (0 != connect(m_Socket[0].fd, reinterpret_cast&lt;const sockaddr*&gt;(&amp;server), <span class="keyword">sizeof</span>(sockaddr_un)))</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f">Close</a>();</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Cannot connect to stream socket: &quot;</span>) + strerror(errno),</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; m_Socket[0].fd,</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; errno);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; }</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="comment">// Our socket will only be interested in polling reads.</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; m_Socket[0].events = POLLIN;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="comment">// Make the socket non blocking.</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="namespacearmnn_utils_1_1_sockets.xhtml#a8396c0d14fc0e7284b175fedfeceef37">Sockets::SetNonBlocking</a>(m_Socket[0].fd))</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f">Close</a>();</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Failed to set socket as non blocking: &quot;</span>) + strerror(errno),</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; m_Socket[0].fd,</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; errno);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;}</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#aaca9d54975c036540e7e5299a0c6df7a"> 64</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#aaca9d54975c036540e7e5299a0c6df7a">SocketProfilingConnection::IsOpen</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordflow">return</span> m_Socket[0].fd &gt; 0;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;}</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f"> 69</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f">SocketProfilingConnection::Close</a>()</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;{</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="namespacearmnn_utils_1_1_sockets.xhtml#a72e0661331d20d0a352fb49c388a1b05">Sockets::Close</a>(m_Socket[0].fd) != 0)</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; {</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Cannot close stream socket: &quot;</span>) + strerror(errno),</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; m_Socket[0].fd,</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; errno);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; }</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; memset(m_Socket, 0, <span class="keyword">sizeof</span>(m_Socket));</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;}</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a096549d574d3fc51e6948efd24988f3e"> 82</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a096549d574d3fc51e6948efd24988f3e">SocketProfilingConnection::WritePacket</a>(<span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* buffer, uint32_t length)</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;{</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">if</span> (buffer == <span class="keyword">nullptr</span> || length == 0)</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; {</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; }</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keywordflow">return</span> <a class="code" href="namespacearmnn_utils_1_1_sockets.xhtml#ad5b08981ac047ff0a3c7cb3442b9f161">Sockets::Write</a>(m_Socket[0].fd, buffer, length) != -1;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;}</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a15c46007b7627c887593d267023fbfa4"> 92</a></span>&#160;<a class="code" href="classarmnn_1_1profiling_1_1_packet.xhtml">Packet</a> <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a15c46007b7627c887593d267023fbfa4">SocketProfilingConnection::ReadPacket</a>(uint32_t timeout)</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;{</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="comment">// Is there currently at least a header worth of data waiting to be read?</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordtype">int</span> bytes_available = 0;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <a class="code" href="namespacearmnn_utils_1_1_sockets.xhtml#a36eb04939ffbb4d4a1291724921a6c6a">Sockets::Ioctl</a>(m_Socket[0].fd, FIONREAD, &amp;bytes_available);</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keywordflow">if</span> (bytes_available &gt;= 8)</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="comment">// Yes there is. Read it:</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordflow">return</span> ReceivePacket();</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; }</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="comment">// Poll for data on the socket or until timeout occurs</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordtype">int</span> pollResult = <a class="code" href="namespacearmnn_utils_1_1_sockets.xhtml#a242d840b21fc2f18ac1ec8d609180e15">Sockets::Poll</a>(&amp;m_Socket[0], 1, static_cast&lt;int&gt;(timeout));</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="keywordflow">switch</span> (pollResult)</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">case</span> -1: <span class="comment">// Error</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Error occured while reading from socket: &quot;</span>) + strerror(errno),</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; m_Socket[0].fd,</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; errno);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">case</span> 0: <span class="comment">// Timeout</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_timeout_exception.xhtml">TimeoutException</a>(<span class="stringliteral">&quot;SocketProfilingConnection: Timeout while reading from socket&quot;</span>);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordflow">default</span>: <span class="comment">// Normal poll return but it could still contain an error signal</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="comment">// Check if the socket reported an error</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="keywordflow">if</span> (m_Socket[0].revents &amp; (POLLNVAL | POLLERR | POLLHUP))</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; {</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordflow">if</span> (m_Socket[0].revents == POLLNVAL)</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; {</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="comment">// This is an unrecoverable error.</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f">Close</a>();</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Error occured while polling receiving socket: POLLNVAL.&quot;</span>),</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; m_Socket[0].fd);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; }</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="keywordflow">if</span> (m_Socket[0].revents == POLLERR)</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; {</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; std::string(</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="stringliteral">&quot;SocketProfilingConnection: Error occured while polling receiving socket: POLLERR: &quot;</span>)</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; + strerror(errno),</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; m_Socket[0].fd,</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; errno);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keywordflow">if</span> (m_Socket[0].revents == POLLHUP)</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; {</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="comment">// This is an unrecoverable error.</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f">Close</a>();</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Connection closed by remote client: POLLHUP.&quot;</span>),</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; m_Socket[0].fd);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; }</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; }</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="comment">// Check if there is data to read</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordflow">if</span> (!(m_Socket[0].revents &amp; (POLLIN)))</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <span class="comment">// This is a corner case. The socket as been woken up but not with any data.</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="comment">// We&#39;ll throw a timeout exception to loop around again.</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_timeout_exception.xhtml">armnn::TimeoutException</a>(</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="stringliteral">&quot;SocketProfilingConnection: File descriptor was polled but no data was available to receive.&quot;</span>);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; }</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">return</span> ReceivePacket();</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; }</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;}</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;<a class="code" href="classarmnn_1_1profiling_1_1_packet.xhtml">Packet</a> SocketProfilingConnection::ReceivePacket()</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;{</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keywordtype">char</span> header[8] = {};</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordtype">long</span> receiveResult = <a class="code" href="namespacearmnn_utils_1_1_sockets.xhtml#a7b2c6949d9d76d2c0ffca916175e5322">Sockets::Read</a>(m_Socket[0].fd, &amp;header, <span class="keyword">sizeof</span>(header));</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="comment">// We expect 8 as the result here. 0 means EOF, socket is closed. -1 means there been some other kind of error.</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keywordflow">switch</span>( receiveResult )</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; {</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="keywordflow">case</span> 0:</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="comment">// Socket has closed.</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f">Close</a>();</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Remote socket has closed the connection.&quot;</span>),</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; m_Socket[0].fd);</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keywordflow">case</span> -1:</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="comment">// There&#39;s been a socket error. We will presume it&#39;s unrecoverable.</span></div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <a class="code" href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f">Close</a>();</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Error occured while reading the packet: &quot;</span>) + strerror(errno),</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; m_Socket[0].fd,</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; errno);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">default</span>:</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keywordflow">if</span> (receiveResult &lt; 8)</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; {</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; std::string(</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <span class="stringliteral">&quot;SocketProfilingConnection: The received packet did not contains a valid PIPE header.&quot;</span>),</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; m_Socket[0].fd);</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; }</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; }</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <span class="comment">// stream_metadata_identifier is the first 4 bytes</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; uint32_t metadataIdentifier = 0;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; std::memcpy(&amp;metadataIdentifier, header, <span class="keyword">sizeof</span>(metadataIdentifier));</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="comment">// data_length is the next 4 bytes</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; uint32_t dataLength = 0;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; std::memcpy(&amp;dataLength, header + 4u, <span class="keyword">sizeof</span>(dataLength));</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; std::unique_ptr&lt;unsigned char[]&gt; packetData;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keywordflow">if</span> (dataLength &gt; 0)</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; {</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; packetData = std::make_unique&lt;unsigned char[]&gt;(dataLength);</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="keywordtype">long</span> receivedLength = <a class="code" href="namespacearmnn_utils_1_1_sockets.xhtml#a7b2c6949d9d76d2c0ffca916175e5322">Sockets::Read</a>(m_Socket[0].fd, packetData.get(), dataLength);</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="keywordflow">if</span> (receivedLength &lt; 0)</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; {</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Error occured while reading the packet: &quot;</span>) + strerror(errno),</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; m_Socket[0].fd,</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; errno);</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; }</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordflow">if</span> (dataLength != static_cast&lt;uint32_t&gt;(receivedLength))</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; {</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; <span class="comment">// What do we do here if we can&#39;t read in a full packet?</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <span class="keywordflow">throw</span> armnnProfiling::SocketConnectionException(</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; std::string(<span class="stringliteral">&quot;SocketProfilingConnection: Invalid PIPE packet.&quot;</span>),</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; m_Socket[0].fd);</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; }</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; }</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classarmnn_1_1profiling_1_1_packet.xhtml">Packet</a>(metadataIdentifier, dataLength, packetData);</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160;}</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160;} <span class="comment">// namespace profiling</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160;} <span class="comment">// namespace armnn</span></div><div class="ttc" id="classarmnn_1_1profiling_1_1_socket_profiling_connection_xhtml_aaca9d54975c036540e7e5299a0c6df7a"><div class="ttname"><a href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#aaca9d54975c036540e7e5299a0c6df7a">armnn::profiling::SocketProfilingConnection::IsOpen</a></div><div class="ttdeci">bool IsOpen() const final</div><div class="ttdef"><b>Definition:</b> <a href="_socket_profiling_connection_8cpp_source.xhtml#l00064">SocketProfilingConnection.cpp:64</a></div></div>
<div class="ttc" id="namespacearmnn_utils_1_1_sockets_xhtml_a242d840b21fc2f18ac1ec8d609180e15"><div class="ttname"><a href="namespacearmnn_utils_1_1_sockets.xhtml#a242d840b21fc2f18ac1ec8d609180e15">armnnUtils::Sockets::Poll</a></div><div class="ttdeci">int Poll(PollFd *fds, nfds_t numFds, int timeout)</div><div class="ttdef"><b>Definition:</b> <a href="_network_sockets_8cpp_source.xhtml#l00081">NetworkSockets.cpp:81</a></div></div>
<div class="ttc" id="namespacearmnn_xhtml"><div class="ttname"><a href="namespacearmnn.xhtml">armnn</a></div><div class="ttdoc">Copyright (c) 2020 ARM Limited. </div><div class="ttdef"><b>Definition:</b> <a href="00__introduction_8dox_source.xhtml#l00025">00_introduction.dox:25</a></div></div>
<div class="ttc" id="namespacearmnn_utils_1_1_sockets_xhtml_a36eb04939ffbb4d4a1291724921a6c6a"><div class="ttname"><a href="namespacearmnn_utils_1_1_sockets.xhtml#a36eb04939ffbb4d4a1291724921a6c6a">armnnUtils::Sockets::Ioctl</a></div><div class="ttdeci">int Ioctl(Socket s, unsigned long int cmd, void *arg)</div><div class="ttdef"><b>Definition:</b> <a href="_network_sockets_8cpp_source.xhtml#l00069">NetworkSockets.cpp:69</a></div></div>
<div class="ttc" id="classarmnn_1_1_timeout_exception_xhtml"><div class="ttname"><a href="classarmnn_1_1_timeout_exception.xhtml">armnn::TimeoutException</a></div><div class="ttdef"><b>Definition:</b> <a href="_exceptions_8hpp_source.xhtml#l00135">Exceptions.hpp:135</a></div></div>
<div class="ttc" id="namespacearmnn_utils_1_1_sockets_xhtml_a248c764067ee60c03ee370784c49f353"><div class="ttname"><a href="namespacearmnn_utils_1_1_sockets.xhtml#a248c764067ee60c03ee370784c49f353">armnnUtils::Sockets::Initialize</a></div><div class="ttdeci">bool Initialize()</div><div class="ttdoc">Performs any required one-time setup. </div><div class="ttdef"><b>Definition:</b> <a href="_network_sockets_8cpp_source.xhtml#l00018">NetworkSockets.cpp:18</a></div></div>
<div class="ttc" id="namespacearmnn_utils_1_1_sockets_xhtml_a8396c0d14fc0e7284b175fedfeceef37"><div class="ttname"><a href="namespacearmnn_utils_1_1_sockets.xhtml#a8396c0d14fc0e7284b175fedfeceef37">armnnUtils::Sockets::SetNonBlocking</a></div><div class="ttdeci">bool SetNonBlocking(Socket s)</div><div class="ttdef"><b>Definition:</b> <a href="_network_sockets_8cpp_source.xhtml#l00038">NetworkSockets.cpp:38</a></div></div>
<div class="ttc" id="classarmnn_1_1profiling_1_1_packet_xhtml"><div class="ttname"><a href="classarmnn_1_1profiling_1_1_packet.xhtml">armnn::profiling::Packet</a></div><div class="ttdef"><b>Definition:</b> <a href="_packet_8hpp_source.xhtml#l00018">Packet.hpp:18</a></div></div>
<div class="ttc" id="namespacearmnn_utils_1_1_sockets_xhtml_a72e0661331d20d0a352fb49c388a1b05"><div class="ttname"><a href="namespacearmnn_utils_1_1_sockets.xhtml#a72e0661331d20d0a352fb49c388a1b05">armnnUtils::Sockets::Close</a></div><div class="ttdeci">int Close(Socket s)</div><div class="ttdef"><b>Definition:</b> <a href="_network_sockets_8cpp_source.xhtml#l00028">NetworkSockets.cpp:28</a></div></div>
<div class="ttc" id="_socket_profiling_connection_8hpp_xhtml"><div class="ttname"><a href="_socket_profiling_connection_8hpp.xhtml">SocketProfilingConnection.hpp</a></div></div>
<div class="ttc" id="namespacearmnn_utils_xhtml"><div class="ttname"><a href="namespacearmnn_utils.xhtml">armnnUtils</a></div><div class="ttdef"><b>Definition:</b> <a href="_data_layout_indexed_8hpp_source.xhtml#l00013">DataLayoutIndexed.hpp:13</a></div></div>
<div class="ttc" id="namespacearmnn_utils_1_1_sockets_xhtml_ad5b08981ac047ff0a3c7cb3442b9f161"><div class="ttname"><a href="namespacearmnn_utils_1_1_sockets.xhtml#ad5b08981ac047ff0a3c7cb3442b9f161">armnnUtils::Sockets::Write</a></div><div class="ttdeci">long Write(Socket s, const void *buf, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="_network_sockets_8cpp_source.xhtml#l00050">NetworkSockets.cpp:50</a></div></div>
<div class="ttc" id="namespacearmnn_utils_1_1_sockets_xhtml_a7b2c6949d9d76d2c0ffca916175e5322"><div class="ttname"><a href="namespacearmnn_utils_1_1_sockets.xhtml#a7b2c6949d9d76d2c0ffca916175e5322">armnnUtils::Sockets::Read</a></div><div class="ttdeci">long Read(Socket s, void *buf, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="_network_sockets_8cpp_source.xhtml#l00060">NetworkSockets.cpp:60</a></div></div>
<div class="ttc" id="classarmnn_1_1profiling_1_1_socket_profiling_connection_xhtml_aba0a393ed98758e76bd30d2862e0740e"><div class="ttname"><a href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#aba0a393ed98758e76bd30d2862e0740e">armnn::profiling::SocketProfilingConnection::SocketProfilingConnection</a></div><div class="ttdeci">SocketProfilingConnection()</div><div class="ttdef"><b>Definition:</b> <a href="_socket_profiling_connection_8cpp_source.xhtml#l00021">SocketProfilingConnection.cpp:21</a></div></div>
<div class="ttc" id="classarmnn_1_1profiling_1_1_socket_profiling_connection_xhtml_a096549d574d3fc51e6948efd24988f3e"><div class="ttname"><a href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a096549d574d3fc51e6948efd24988f3e">armnn::profiling::SocketProfilingConnection::WritePacket</a></div><div class="ttdeci">bool WritePacket(const unsigned char *buffer, uint32_t length) final</div><div class="ttdef"><b>Definition:</b> <a href="_socket_profiling_connection_8cpp_source.xhtml#l00082">SocketProfilingConnection.cpp:82</a></div></div>
<div class="ttc" id="classarmnn_1_1profiling_1_1_socket_profiling_connection_xhtml_a29dc6798f18d73abd4ba8e4910f6831f"><div class="ttname"><a href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a29dc6798f18d73abd4ba8e4910f6831f">armnn::profiling::SocketProfilingConnection::Close</a></div><div class="ttdeci">void Close() final</div><div class="ttdef"><b>Definition:</b> <a href="_socket_profiling_connection_8cpp_source.xhtml#l00069">SocketProfilingConnection.cpp:69</a></div></div>
<div class="ttc" id="classarmnn_1_1profiling_1_1_socket_profiling_connection_xhtml_a15c46007b7627c887593d267023fbfa4"><div class="ttname"><a href="classarmnn_1_1profiling_1_1_socket_profiling_connection.xhtml#a15c46007b7627c887593d267023fbfa4">armnn::profiling::SocketProfilingConnection::ReadPacket</a></div><div class="ttdeci">Packet ReadPacket(uint32_t timeout) final</div><div class="ttdef"><b>Definition:</b> <a href="_socket_profiling_connection_8cpp_source.xhtml#l00092">SocketProfilingConnection.cpp:92</a></div></div>
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