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| <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">*</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">* Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">* or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">* distributed with this work for additional information</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">* regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">* to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">* "License"); you may not use this file except in compliance</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">* with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">*</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">* http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">*</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">* Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">* software distributed under the License is distributed on an</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">* KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">* specific language governing permissions and limitations</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">* under the License.</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">*</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">*************************************************************/</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#ifndef SINGA_COMM_NETWORK_H_</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#define SINGA_COMM_NETWORK_H_</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "singa/singa_config.h"</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#ifdef ENABLE_DIST</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <ev.h></span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <thread></span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <unordered_map></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <map></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <vector></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <condition_variable></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <mutex></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <atomic></span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <netinet/in.h></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <queue></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">namespace </span><a class="code" href="namespacesinga.html">singa</a> {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#define LOCKED 1</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#define UNLOCKED 0</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#define SIG_EP 1</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#define SIG_MSG 2</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#define CONN_INIT 0</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#define CONN_PENDING 1</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#define CONN_EST 2</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#define CONN_ERROR 3</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#define MAX_RETRY_CNT 3</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#define EP_TIMEOUT 5.</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#define MSG_DATA 0</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#define MSG_ACK 1</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="keyword">class </span>NetworkThread;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">class </span>EndPoint;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">class </span>EndPointFactory;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="keyword">class </span>Message {</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  uint8_t type_;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  uint32_t id_;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  std::size_t msize_ = 0;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  std::size_t psize_ = 0;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  std::size_t processed_ = 0;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">char</span> *msg_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> hsize_ =</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">sizeof</span>(id_) + 2 * <span class="keyword">sizeof</span>(std::size_t) + <span class="keyword">sizeof</span>(type_);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">char</span> mdata_[hsize_];</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">friend</span> <span class="keyword">class </span>NetworkThread;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">friend</span> <span class="keyword">class </span>EndPoint;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  Message(<span class="keywordtype">int</span> = MSG_DATA, uint32_t = 0);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  Message(<span class="keyword">const</span> Message &) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  Message(Message &&);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  ~Message();</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">void</span> setMetadata(<span class="keyword">const</span> <span class="keywordtype">void</span> *, <span class="keywordtype">int</span>);</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">void</span> setPayload(<span class="keyword">const</span> <span class="keywordtype">void</span> *, <span class="keywordtype">int</span>);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  std::size_t getMetadata(<span class="keywordtype">void</span> **);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  std::size_t getPayload(<span class="keywordtype">void</span> **);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  std::size_t getSize();</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordtype">void</span> setId(uint32_t);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> };</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">class </span>EndPoint {</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  std::queue<Message *> send_;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  std::queue<Message *> recv_;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  std::queue<Message *> to_ack_;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  std::condition_variable cv_;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  std::mutex mtx_;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keyword">struct </span>sockaddr_in addr_;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  ev_timer timer_;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  ev_tstamp last_msg_time_;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordtype">int</span> fd_[2] = { -1, -1 }; <span class="comment">// two endpoints simultaneously connect to each other</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">int</span> pfd_ = -1;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">bool</span> is_socket_loop_ = <span class="keyword">false</span>;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">int</span> conn_status_ = CONN_INIT;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">int</span> pending_cnt_ = 0;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> retry_cnt_ = 0;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  NetworkThread *thread_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  EndPoint(NetworkThread *t);</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  ~EndPoint();</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">friend</span> <span class="keyword">class </span>NetworkThread;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">friend</span> <span class="keyword">class </span>EndPointFactory;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordtype">int</span> send(Message *);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  Message *recv();</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> };</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">class </span>EndPointFactory {</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  std::unordered_map<uint32_t, EndPoint *> ip_ep_map_;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  std::condition_variable map_cv_;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  std::mutex map_mtx_;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  NetworkThread *thread_;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  EndPoint *getEp(uint32_t ip);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  EndPoint *getOrCreateEp(uint32_t ip);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">friend</span> <span class="keyword">class </span>NetworkThread;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  EndPointFactory(NetworkThread *thread) : thread_(thread) {}</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  ~EndPointFactory();</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  EndPoint *getEp(<span class="keyword">const</span> <span class="keywordtype">char</span> *host);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">void</span> getNewEps(std::vector<EndPoint *> &neps);</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> };</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">class </span>NetworkThread {</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keyword">struct </span>ev_loop *loop_;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  ev_async ep_sig_;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  ev_async msg_sig_;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  ev_io socket_watcher_;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordtype">int</span> port_;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">int</span> socket_fd_;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  std::thread *thread_;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  std::unordered_map<int, ev_io> fd_wwatcher_map_;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  std::unordered_map<int, ev_io> fd_rwatcher_map_;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  std::unordered_map<int, EndPoint *> fd_ep_map_;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  std::map<int, Message> pending_msgs_;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordtype">void</span> handleConnLost(<span class="keywordtype">int</span>, EndPoint *, <span class="keywordtype">bool</span> = <span class="keyword">true</span>);</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">void</span> doWork();</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordtype">int</span> asyncSend(<span class="keywordtype">int</span>);</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">void</span> asyncSendPendingMsg(EndPoint *);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">void</span> afterConnEst(EndPoint *ep, <span class="keywordtype">int</span> fd, <span class="keywordtype">bool</span> active);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  EndPointFactory *epf_;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  NetworkThread(<span class="keywordtype">int</span>);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordtype">void</span> notify(<span class="keywordtype">int</span> signal);</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>  <span class="keywordtype">void</span> onRecv(<span class="keywordtype">int</span> fd);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">void</span> onSend(<span class="keywordtype">int</span> fd = -1);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">void</span> onConnEst(<span class="keywordtype">int</span> fd);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordtype">void</span> onNewEp();</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">void</span> onNewConn();</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">void</span> onTimeout(<span class="keyword">struct</span> ev_timer *timer);</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="preprocessor">#endif // ENABLE_DIST</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="namespacesinga_html"><div class="ttname"><a href="namespacesinga.html">singa</a></div><div class="ttdoc">Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements...</div><div class="ttdef"><b>Definition:</b> common.h:48</div></div> |
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