📄 csdn_文档中心_路由模拟——设计方案的实现(4).htm
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style="COLOR: blue">delete</SPAN> []index;<o:p></o:p></SPAN></P>
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style="COLOR: blue">delete</SPAN> []addr;<o:p></o:p></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-ALIGN: left; TEXT-INDENT: -18pt; mso-layout-grid-align: none; tab-stops: list 18.0pt; mso-list: l0 level1 lfo1"><SPAN
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style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">四，</SPAN><SPAN
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">网络数据的传输<SPAN
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style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">这是另一个比较关键的部分。本部分的实现，大部分为网络传输原语的模拟。这里要尤其注意语义的完备性，考虑网络传输中的分布环境的各种因素。当然，本方案的实现仍一切就简。若对网络环境进行实时模拟，可以进行代码扩充。<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
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<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><FONT
size=3><SPAN lang=EN-US>1</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Times New Roman'">，</SPAN></FONT><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">网络向路由器端口发送数据</SPAN><SPAN
lang=EN-US
style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
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style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">方法名称：<SPAN
lang=EN-US><SPAN style="mso-tab-count: 1">
</SPAN><SPAN style="mso-tab-count: 1">
</SPAN><SPAN style="mso-tab-count: 1">
</SPAN></SPAN></SPAN><B><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">CentralRout::NetWriteData</SPAN></B><SPAN
lang=EN-US
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><o:p></o:p></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">方法参数：<SPAN
lang=EN-US><SPAN style="mso-tab-count: 1">
</SPAN><SPAN style="mso-tab-count: 1">
</SPAN><SPAN style="mso-tab-count: 1">
</SPAN></SPAN></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">NetData
& _netData<SPAN
style="COLOR: black"><o:p></o:p></SPAN></SPAN></P>
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style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">返回值：<SPAN
lang=EN-US><SPAN
style="mso-tab-count: 2"> </SPAN><SPAN
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</SPAN></SPAN></SPAN><SPAN lang=EN-US
style="COLOR: blue; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">bool</SPAN><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">类型，</SPAN><SPAN
lang=EN-US
style="COLOR: blue; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">true</SPAN><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">为写成功，否则则是网络已经涌塞。<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt 104.8pt; TEXT-ALIGN: left; TEXT-INDENT: -104.8pt; mso-layout-grid-align: none"><SPAN
style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">方法的目的：<SPAN
lang=EN-US><SPAN
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</SPAN>网络中向路由器端口写数据的过程。对IPData和Message分别处理。如果成功则调用路由器读端口数据的过程。<o:p></o:p></SPAN></SPAN></P>
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style="COLOR: black; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">可能的出错：<SPAN
lang=EN-US><SPAN style="mso-tab-count: 1"> </SPAN><SPAN
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</SPAN>无<o:p></o:p></SPAN></SPAN></P>
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lang=EN-US
style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">//
网络向路由器端口发送数据<o:p></o:p></SPAN></P>
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style="COLOR: blue; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">bool</SPAN><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">
CentralRout::NetWriteData(NetData &
_netData)<o:p></o:p></SPAN></P>
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style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt">{<o:p></o:p></SPAN></P>
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lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: green">//向控制台显示位置<o:p></o:p></SPAN></SPAN></P>
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</SPAN>std::cout<<"\nAt Rout:\t";<o:p></o:p></SPAN></P>
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lang=EN-US
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style="COLOR: blue">for</SPAN>(<SPAN style="COLOR: blue">int</SPAN>
i=0;i<IP_ADDRESS_LENGTH;i++)<o:p></o:p></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
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</SPAN>std::cout<<selfAddress[i];<o:p></o:p></SPAN></P>
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style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
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</SPAN>std::cout<<std::endl;<o:p></o:p></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="COLOR: green; FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"> <o:p></o:p></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: green">//写入的是IP数据包<o:p></o:p></SPAN></SPAN></P>
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style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="COLOR: blue">if</SPAN>(!_netData.IsMessage() &&
AddrEqual(_netData.GetNextHop(),selfAddress) )<o:p></o:p></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN>{<SPAN
style="COLOR: green">//id是路由器内跟踪数据包与应答消息的对应关系的关键变量<o:p></o:p></SPAN></SPAN></P>
<P align=left class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-layout-grid-align: none"><SPAN
lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 2">
</SPAN>id = id + 0.000001;<SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
style="mso-tab-count: 1">
</SPAN><o:p></o:p></SPAN></P>
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lang=EN-US
style="FONT-FAMILY: 新宋体; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-font-kerning: 0pt"><SPAN
style="mso-tab-count: 1"> </SPAN><SPAN
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