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RCF - Interprocess Communication for C++

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25 Oct 2011CPOL20 min read 4.6M   8.4K   331  
A server/client IPC framework, using the C++ preprocessor as an IDL compiler.
 
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<a class="el" href="dir_G_3A_2FDevelopment_2Fbuild_2Fscripts_2Fwin_2FBuildRcf2_5FOutput_2FRCF_2D0_2E4_2Finclude_2F.html">include</a>&nbsp;&raquo&nbsp;<a class="el" href="dir_G_3A_2FDevelopment_2Fbuild_2Fscripts_2Fwin_2FBuildRcf2_5FOutput_2FRCF_2D0_2E4_2Finclude_2FRCF_2F.html">RCF</a></div>
<h1>IpServerTransport.hpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 
<a name="l00002"></a>00002 <span class="comment">//*****************************************************************************</span>
<a name="l00003"></a>00003 <span class="comment">// RCF - Remote Call Framework</span>
<a name="l00004"></a>00004 <span class="comment">// Copyright (c) 2005. All rights reserved.</span>
<a name="l00005"></a>00005 <span class="comment">// Developed by Jarl Lindrud.</span>
<a name="l00006"></a>00006 <span class="comment">// Contact: jlindrud@hotmail.com .</span>
<a name="l00007"></a>00007 <span class="comment">//*****************************************************************************</span>
<a name="l00008"></a>00008 
<a name="l00009"></a>00009 <span class="preprocessor">#ifndef INCLUDE_RCF_IPSERVERTRANSPORT_HPP</span>
<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDE_RCF_IPSERVERTRANSPORT_HPP</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span>
<a name="l00012"></a>00012 <span class="preprocessor">#include &lt;string&gt;</span>
<a name="l00013"></a>00013 <span class="preprocessor">#include &lt;vector&gt;</span>
<a name="l00014"></a>00014 
<a name="l00015"></a>00015 <span class="preprocessor">#include &lt;RCF/UsingBsdSockets.hpp&gt;</span>
<a name="l00016"></a>00016 <span class="preprocessor">#include &lt;RCF/ThreadLibrary.hpp&gt;</span>
<a name="l00017"></a>00017 <span class="preprocessor">#include &lt;RCF/Tools.hpp&gt;</span>
<a name="l00018"></a>00018 
<a name="l00019"></a>00019 <span class="keyword">namespace </span>RCF {
<a name="l00020"></a>00020 
<a name="l00021"></a>00021     <span class="keyword">class </span>I_IpServerTransport
<a name="l00022"></a>00022     {
<a name="l00023"></a>00023     <span class="keyword">public</span>:
<a name="l00024"></a>00024         I_IpServerTransport() :
<a name="l00025"></a>00025             mReadWriteMutex(WriterPriority),
<a name="l00026"></a>00026             mNetworkInterface(<span class="stringliteral">"127.0.0.1"</span>)
<a name="l00027"></a>00027         {}
<a name="l00028"></a>00028 
<a name="l00029"></a>00029         <span class="keywordtype">void</span> setNetworkInterface(<span class="keyword">const</span> std::string &amp;networkInterface)
<a name="l00030"></a>00030         {
<a name="l00031"></a>00031             WriteLock writeLock(mReadWriteMutex);
<a name="l00032"></a>00032             mNetworkInterface = networkInterface;
<a name="l00033"></a>00033         }
<a name="l00034"></a>00034 
<a name="l00035"></a>00035         std::string  getNetworkInterface()<span class="keyword"> const</span>
<a name="l00036"></a>00036 <span class="keyword">        </span>{
<a name="l00037"></a>00037             ReadLock readLock(mReadWriteMutex);
<a name="l00038"></a>00038             <span class="keywordflow">return</span> mNetworkInterface;
<a name="l00039"></a>00039         }
<a name="l00040"></a>00040 
<a name="l00041"></a>00041         <span class="keywordtype">void</span> setAllowedClientIps(<span class="keyword">const</span> std::vector&lt;std::string&gt; &amp;allowedClientIps)
<a name="l00042"></a>00042         {
<a name="l00043"></a>00043             WriteLock writeLock(mReadWriteMutex);
<a name="l00044"></a>00044             mAllowedIps.assign(allowedClientIps.begin(), allowedClientIps.end());
<a name="l00045"></a>00045 
<a name="l00046"></a>00046             <span class="comment">// translate the ips into 32 bit values, network order</span>
<a name="l00047"></a>00047             mAllowedAddrs.clear();
<a name="l00048"></a>00048             <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i&lt;mAllowedIps.size(); i++)
<a name="l00049"></a>00049             {
<a name="l00050"></a>00050                 <span class="keyword">const</span> std::string &amp;ip = mAllowedIps[i];
<a name="l00051"></a>00051                 hostent *hostDesc = ::gethostbyname( ip.c_str() );
<a name="l00052"></a>00052                 <span class="keywordflow">if</span> (hostDesc == NULL)
<a name="l00053"></a>00053                 {
<a name="l00054"></a>00054                     <span class="keywordtype">int</span> err = Platform::OS::BsdSockets::GetLastError();
<a name="l00055"></a>00055                     std::string strErr = Platform::OS::GetErrorString(err);
<a name="l00056"></a>00056                     RCF_TRACE(<span class="stringliteral">"gethostbyname() failed"</span>)(ip)(err)(strErr);
<a name="l00057"></a>00057                     mAllowedAddrs.push_back(INADDR_NONE);
<a name="l00058"></a>00058                 }
<a name="l00059"></a>00059                 <span class="keywordflow">else</span>
<a name="l00060"></a>00060                 {
<a name="l00061"></a>00061                     in_addr addr = *((in_addr*) hostDesc-&gt;h_addr_list[0]);
<a name="l00062"></a>00062                     mAllowedAddrs.push_back(addr.s_addr);
<a name="l00063"></a>00063                 }
<a name="l00064"></a>00064             }
<a name="l00065"></a>00065         }
<a name="l00066"></a>00066 
<a name="l00067"></a>00067         std::vector&lt;std::string&gt; getAllowedClientIps()<span class="keyword"> const</span>
<a name="l00068"></a>00068 <span class="keyword">        </span>{
<a name="l00069"></a>00069             ReadLock readLock(mReadWriteMutex);
<a name="l00070"></a>00070             <span class="keywordflow">return</span> mAllowedIps;
<a name="l00071"></a>00071         }
<a name="l00072"></a>00072 
<a name="l00073"></a>00073         <span class="keywordtype">bool</span> isClientIpAllowed(<span class="keyword">const</span> std::string &amp;ip)<span class="keyword"> const</span>
<a name="l00074"></a>00074 <span class="keyword">        </span>{
<a name="l00075"></a>00075             ReadLock readLock(mReadWriteMutex);
<a name="l00076"></a>00076             <span class="keywordflow">return</span> 
<a name="l00077"></a>00077                 mAllowedIps.empty() ||
<a name="l00078"></a>00078                 (std::find(mAllowedIps.begin(), mAllowedIps.end(), ip) != mAllowedIps.end());
<a name="l00079"></a>00079         }
<a name="l00080"></a>00080 
<a name="l00081"></a>00081         <span class="keywordtype">bool</span> isClientAddrAllowed(<span class="keyword">const</span> sockaddr_in &amp;addr) <span class="keyword">const</span>
<a name="l00082"></a>00082         {
<a name="l00083"></a>00083             ReadLock readLock(mReadWriteMutex);
<a name="l00084"></a>00084             <span class="keywordflow">return</span> 
<a name="l00085"></a>00085                 mAllowedAddrs.empty() ||
<a name="l00086"></a>00086                 (std::find(mAllowedAddrs.begin(), mAllowedAddrs.end(), addr.sin_addr.s_addr) != mAllowedAddrs.end());
<a name="l00087"></a>00087         }
<a name="l00088"></a>00088 
<a name="l00089"></a>00089     <span class="keyword">private</span>:
<a name="l00090"></a>00090         std::string mNetworkInterface;
<a name="l00091"></a>00091         std::vector&lt;std::string&gt; mAllowedIps;
<a name="l00092"></a>00092         std::vector&lt;u_long&gt; mAllowedAddrs;
<a name="l00093"></a>00093         <span class="keyword">mutable</span> ReadWriteMutex mReadWriteMutex;
<a name="l00094"></a>00094     };
<a name="l00095"></a>00095 
<a name="l00096"></a>00096 } <span class="comment">// namespace RCF</span>
<a name="l00097"></a>00097 
<a name="l00098"></a>00098 #endif <span class="comment">// ! INCLUDE_RCF_IPSERVERTRANSPORT_HPP</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Tue Sep 19 19:02:37 2006 for RCF by&nbsp;
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Written By
Jarl Lindrud
Australia Australia
Software developer, from Sweden and now living in Canberra, Australia, working on distributed C++ applications. When he is not programming, Jarl enjoys skiing and playing table tennis. He derives immense satisfaction from referring to himself in third person.

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Posted 23 Dec 2005

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