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RCF - Interprocess Communication for C++

, 25 Oct 2011 CPOL
A server/client IPC framework, using the C++ preprocessor as an IDL compiler.
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<h1>Tools.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_TOOLS_HPP</span>
<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDE_RCF_TOOLS_HPP</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span>
<a name="l00012"></a>00012 <span class="comment">// Various utilities</span>
<a name="l00013"></a>00013 
<a name="l00014"></a>00014 <span class="preprocessor">#include &lt;time.h&gt;</span>
<a name="l00015"></a>00015 
<a name="l00016"></a>00016 <span class="preprocessor">#include &lt;deque&gt;</span>
<a name="l00017"></a>00017 <span class="preprocessor">#include &lt;iostream&gt;</span>
<a name="l00018"></a>00018 <span class="preprocessor">#include &lt;iterator&gt;</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include &lt;memory&gt;</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include &lt;stdexcept&gt;</span>
<a name="l00021"></a>00021 <span class="preprocessor">#include &lt;typeinfo&gt;</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include &lt;vector&gt;</span>
<a name="l00023"></a>00023 
<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;boost/bind.hpp&gt;</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;boost/current_function.hpp&gt;</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;boost/function.hpp&gt;</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include &lt;boost/noncopyable.hpp&gt;</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include &lt;boost/static_assert.hpp&gt;</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include &lt;boost/type_traits.hpp&gt;</span>
<a name="l00030"></a>00030 
<a name="l00031"></a>00031 <span class="preprocessor">#include &lt;RCF/Exception.hpp&gt;</span>
<a name="l00032"></a>00032 <span class="preprocessor">#include &lt;RCF/ScopeGuard.h&gt;</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include &lt;RCF/ThreadLibrary.hpp&gt;</span>
<a name="l00034"></a>00034 <span class="preprocessor">#include &lt;RCF/util/Meta.hpp&gt;</span>
<a name="l00035"></a>00035 <span class="preprocessor">#include &lt;RCF/util/UnusedVariable.hpp&gt;</span>
<a name="l00036"></a>00036 
<a name="l00037"></a>00037 <span class="comment">// Assertion mechanism</span>
<a name="l00038"></a>00038 <span class="preprocessor">#include &lt;RCF/util/Assert.hpp&gt;</span>
<a name="l00039"></a>00039 <span class="preprocessor">#define RCF_ASSERT(x) UTIL_ASSERT(x, RCF::AssertionFailureException)</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span>
<a name="l00041"></a>00041 <span class="comment">// Verification mechanism</span>
<a name="l00042"></a>00042 <span class="preprocessor">#include &lt;RCF/util/Throw.hpp&gt;</span>
<a name="l00043"></a>00043 <span class="preprocessor">#define RCF_VERIFY(x, msg) UTIL_VERIFY(x, RCF::VerificationFailureException, msg)</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span>
<a name="l00045"></a>00045 <span class="comment">// Trace mechanism</span>
<a name="l00046"></a>00046 <span class="preprocessor">#include &lt;RCF/util/Trace.hpp&gt;</span>
<a name="l00047"></a>00047 <span class="comment">//#define RCF_TRACE(x) DUMMY_VARIABLE_ARG_MACRO()</span>
<a name="l00048"></a>00048 <span class="preprocessor">#define RCF_TRACE(x)  UTIL_TRACE(x, (*::RCF::pTraceChannels[0]))</span>
<a name="l00049"></a>00049 <span class="preprocessor"></span><span class="preprocessor">#define RCF1_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[1]))</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor">#define RCF2_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[2]))</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#define RCF3_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[3]))</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor">#define RCF4_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[4]))</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor">#define RCF5_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[5]))</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor">#define RCF6_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[6]))</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span><span class="preprocessor">#define RCF7_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[7]))</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span><span class="preprocessor">#define RCF8_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[8]))</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="preprocessor">#define RCF9_TRACE(x) UTIL_TRACE(x, (*::RCF::pTraceChannels[9]))</span>
<a name="l00058"></a>00058 <span class="preprocessor"></span>
<a name="l00059"></a>00059 <span class="keyword">namespace </span>RCF {
<a name="l00060"></a>00060     <span class="keyword">extern</span> util::TraceChannel *pTraceChannels[10];
<a name="l00061"></a>00061 }
<a name="l00062"></a>00062 
<a name="l00063"></a>00063 <span class="comment">// Throw mechanism</span>
<a name="l00064"></a>00064 <span class="preprocessor">#include &lt;RCF/util/Throw.hpp&gt;</span>
<a name="l00065"></a>00065 <span class="preprocessor">#define RCF_THROW UTIL_THROW</span>
<a name="l00066"></a>00066 <span class="preprocessor"></span>
<a name="l00067"></a>00067 <span class="comment">// Scope guard mechanism</span>
<a name="l00068"></a>00068 <span class="keyword">namespace </span>RCF {
<a name="l00069"></a>00069 
<a name="l00070"></a>00070     <span class="keyword">class </span>SharedPtrScopeGuard : boost::noncopyable
<a name="l00071"></a>00071     {
<a name="l00072"></a>00072     <span class="keyword">public</span>:
<a name="l00073"></a>00073         <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;
<a name="l00074"></a>00074         SharedPtrScopeGuard(T &amp;t) : 
<a name="l00075"></a>00075             spv(static_cast&lt;void*&gt;(NULL), t)
<a name="l00076"></a>00076         {}
<a name="l00077"></a>00077 
<a name="l00078"></a>00078         <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> R&gt;
<a name="l00079"></a>00079         SharedPtrScopeGuard(T &amp;t, R (T::*pfn)() ) : 
<a name="l00080"></a>00080             spv(static_cast&lt;void*&gt;(NULL), boost::bind(pfn, &amp;t))
<a name="l00081"></a>00081         {}
<a name="l00082"></a>00082 
<a name="l00083"></a>00083         <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> R, <span class="keyword">typename</span> A&gt;
<a name="l00084"></a>00084         SharedPtrScopeGuard(T &amp;t, R (T::*pfn)(A), A a) : 
<a name="l00085"></a>00085             spv(static_cast&lt;void*&gt;(NULL), boost::bind(pfn, &amp;t, a))
<a name="l00086"></a>00086         {}
<a name="l00087"></a>00087 
<a name="l00088"></a>00088         <span class="keywordtype">void</span> dismiss()
<a name="l00089"></a>00089         {
<a name="l00090"></a>00090             spv.reset();
<a name="l00091"></a>00091         }
<a name="l00092"></a>00092 
<a name="l00093"></a>00093     <span class="keyword">private</span>:
<a name="l00094"></a>00094         boost::shared_ptr&lt;void&gt; spv;
<a name="l00095"></a>00095     };
<a name="l00096"></a>00096 <span class="comment">/*</span>
<a name="l00097"></a>00097 <span class="comment">    template&lt;typename PFN&gt;</span>
<a name="l00098"></a>00098 <span class="comment">    void trigger0(void *pv)</span>
<a name="l00099"></a>00099 <span class="comment">    {</span>
<a name="l00100"></a>00100 <span class="comment">        ((PFN) pv)();</span>
<a name="l00101"></a>00101 <span class="comment">    }</span>
<a name="l00102"></a>00102 <span class="comment"></span>
<a name="l00103"></a>00103 <span class="comment">    template&lt;typename T, typename PMFN&gt;</span>
<a name="l00104"></a>00104 <span class="comment">    void trigger1(void *pvt, void *pvmfn)</span>
<a name="l00105"></a>00105 <span class="comment">    {</span>
<a name="l00106"></a>00106 <span class="comment">        PMFN pmfn = (PMFN) pvmfn;</span>
<a name="l00107"></a>00107 <span class="comment">        T *pt = (T *) pvt;</span>
<a name="l00108"></a>00108 <span class="comment">        pt-&gt;*pmfn();</span>
<a name="l00109"></a>00109 <span class="comment">    }</span>
<a name="l00110"></a>00110 <span class="comment">  </span>
<a name="l00111"></a>00111 <span class="comment">    class AlexandrescuScopeGuard</span>
<a name="l00112"></a>00112 <span class="comment">    {</span>
<a name="l00113"></a>00113 <span class="comment">    public:</span>
<a name="l00114"></a>00114 <span class="comment"></span>
<a name="l00115"></a>00115 <span class="comment">        template&lt;typename PFN&gt;</span>
<a name="l00116"></a>00116 <span class="comment">        AlexandrescuScopeGuard(PFN pfn) :</span>
<a name="l00117"></a>00117 <span class="comment">            mTrigger0( trigger0&lt;PFN&gt; ),</span>
<a name="l00118"></a>00118 <span class="comment">            mTrigger1(),</span>
<a name="l00119"></a>00119 <span class="comment">            mpv0(pfn),</span>
<a name="l00120"></a>00120 <span class="comment">            mpv1(),</span>
<a name="l00121"></a>00121 <span class="comment">            mDismissed()</span>
<a name="l00122"></a>00122 <span class="comment">        {}</span>
<a name="l00123"></a>00123 <span class="comment"></span>
<a name="l00124"></a>00124 <span class="comment">        template&lt;typename T, typename PMFN&gt;</span>
<a name="l00125"></a>00125 <span class="comment">        AlexandrescuScopeGuard(T &amp;t, PMFN pmfn) :</span>
<a name="l00126"></a>00126 <span class="comment">            mTrigger1( trigger1&lt;T, PMFN&gt; ),</span>
<a name="l00127"></a>00127 <span class="comment">            mpv0(&amp;t),</span>
<a name="l00128"></a>00128 <span class="comment">            mpv1( (void *) pmfn)</span>
<a name="l00129"></a>00129 <span class="comment">        {}</span>
<a name="l00130"></a>00130 <span class="comment"></span>
<a name="l00131"></a>00131 <span class="comment">        ~AlexandrescuScopeGuard()</span>
<a name="l00132"></a>00132 <span class="comment">        {</span>
<a name="l00133"></a>00133 <span class="comment">            if (!mDismissed)</span>
<a name="l00134"></a>00134 <span class="comment">            {</span>
<a name="l00135"></a>00135 <span class="comment">                try</span>
<a name="l00136"></a>00136 <span class="comment">                {</span>
<a name="l00137"></a>00137 <span class="comment">                    if (mTrigger0)</span>
<a name="l00138"></a>00138 <span class="comment">                    {</span>
<a name="l00139"></a>00139 <span class="comment">                        mTrigger0(mpv0);</span>
<a name="l00140"></a>00140 <span class="comment">                    }</span>
<a name="l00141"></a>00141 <span class="comment">                    else if (mTrigger1)</span>
<a name="l00142"></a>00142 <span class="comment">                    {</span>
<a name="l00143"></a>00143 <span class="comment">                        mTrigger1(mpv0, mpv1);</span>
<a name="l00144"></a>00144 <span class="comment">                    }</span>
<a name="l00145"></a>00145 <span class="comment">                }</span>
<a name="l00146"></a>00146 <span class="comment">                catch(...)</span>
<a name="l00147"></a>00147 <span class="comment">                {}</span>
<a name="l00148"></a>00148 <span class="comment">            }</span>
<a name="l00149"></a>00149 <span class="comment">        }</span>
<a name="l00150"></a>00150 <span class="comment"></span>
<a name="l00151"></a>00151 <span class="comment">        void dismiss()</span>
<a name="l00152"></a>00152 <span class="comment">        {</span>
<a name="l00153"></a>00153 <span class="comment">            mDismissed = true;</span>
<a name="l00154"></a>00154 <span class="comment">        }</span>
<a name="l00155"></a>00155 <span class="comment"></span>
<a name="l00156"></a>00156 <span class="comment">    private:</span>
<a name="l00157"></a>00157 <span class="comment">        bool mDismissed;</span>
<a name="l00158"></a>00158 <span class="comment">        void (*mTrigger0)(void *pv0);</span>
<a name="l00159"></a>00159 <span class="comment">        void (*mTrigger1)(void *pv0, void *pv1);</span>
<a name="l00160"></a>00160 <span class="comment">        void *mpv0;</span>
<a name="l00161"></a>00161 <span class="comment">        void *mpv1;</span>
<a name="l00162"></a>00162 <span class="comment">    };</span>
<a name="l00163"></a>00163 <span class="comment"></span>
<a name="l00164"></a>00164 <span class="comment">//#ifdef __BORLANDC__</span>
<a name="l00165"></a>00165 <span class="comment">//    typedef SharedPtrScopeGuard         ScopeGuard;</span>
<a name="l00166"></a>00166 <span class="comment">//#else</span>
<a name="l00167"></a>00167 <span class="comment">    typedef AlexandrescuScopeGuard      ScopeGuard;</span>
<a name="l00168"></a>00168 <span class="comment">//#endif</span>
<a name="l00169"></a>00169 <span class="comment">*/</span>
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171 
<a name="l00172"></a>00172 <span class="preprocessor">#ifndef __BORLANDC__</span>
<a name="l00173"></a>00173 <span class="preprocessor"></span><span class="keyword">namespace </span>std {
<a name="l00174"></a>00174 <span class="preprocessor">#endif</span>
<a name="l00175"></a>00175 <span class="preprocessor"></span>
<a name="l00176"></a>00176     <span class="comment">// Trace std::vector</span>
<a name="l00177"></a>00177     <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;
<a name="l00178"></a>00178     std::ostream &amp;operator&lt;&lt;(std::ostream &amp;os, const std::vector&lt;T&gt; &amp;v)
<a name="l00179"></a>00179     {
<a name="l00180"></a>00180         os &lt;&lt; <span class="stringliteral">"("</span>;
<a name="l00181"></a>00181         std::copy(v.begin(), v.end(), std::ostream_iterator&lt;T&gt;(os, <span class="stringliteral">", "</span>));
<a name="l00182"></a>00182         os &lt;&lt; <span class="stringliteral">")"</span>;
<a name="l00183"></a>00183         <span class="keywordflow">return</span> os;
<a name="l00184"></a>00184     }
<a name="l00185"></a>00185 
<a name="l00186"></a>00186     <span class="comment">// Trace std::deque</span>
<a name="l00187"></a>00187     <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;
<a name="l00188"></a>00188     std::ostream &amp;operator&lt;&lt;(std::ostream &amp;os, const std::deque&lt;T&gt; &amp;d)
<a name="l00189"></a>00189     {
<a name="l00190"></a>00190         os &lt;&lt; <span class="stringliteral">"("</span>;
<a name="l00191"></a>00191         std::copy(d.begin(), d.end(), std::ostream_iterator&lt;T&gt;(os, <span class="stringliteral">", "</span>));
<a name="l00192"></a>00192         os &lt;&lt; <span class="stringliteral">")"</span>;
<a name="l00193"></a>00193         <span class="keywordflow">return</span> os;
<a name="l00194"></a>00194     }
<a name="l00195"></a>00195 
<a name="l00196"></a>00196 
<a name="l00197"></a>00197     <span class="comment">// Trace type_info</span>
<a name="l00198"></a>00198     <span class="keyword">inline</span> std::ostream &amp;operator&lt;&lt;(std::ostream &amp;os, <span class="keyword">const</span> std::type_info &amp;ti) 
<a name="l00199"></a>00199     { 
<a name="l00200"></a>00200         <span class="keywordflow">return</span> os &lt;&lt; ti.name(); 
<a name="l00201"></a>00201     }
<a name="l00202"></a>00202     
<a name="l00203"></a>00203     <span class="comment">// Trace exception</span>
<a name="l00204"></a>00204     <span class="keyword">inline</span> std::ostream &amp;operator&lt;&lt;(std::ostream &amp;os, <span class="keyword">const</span> std::exception &amp;e) 
<a name="l00205"></a>00205     { 
<a name="l00206"></a>00206         <span class="keywordflow">return</span> os &lt;&lt; <span class="stringliteral">"Type: "</span> &lt;&lt; <span class="keyword">typeid</span>(e).name() &lt;&lt; <span class="stringliteral">", What: "</span> &lt;&lt; e.what(); 
<a name="l00207"></a>00207     }
<a name="l00208"></a>00208 
<a name="l00209"></a>00209 <span class="preprocessor">#ifndef __BORLANDC__</span>
<a name="l00210"></a>00210 <span class="preprocessor"></span>} <span class="comment">// namespace std</span>
<a name="l00211"></a>00211 <span class="preprocessor">#endif</span>
<a name="l00212"></a>00212 <span class="preprocessor"></span>
<a name="l00213"></a>00213 <span class="keyword">namespace </span>RCF {
<a name="l00214"></a>00214 
<a name="l00215"></a>00215     <span class="comment">// Time in ms since ca 1970, modulo 65536 s (turns over every ~18.2 hrs).</span>
<a name="l00216"></a>00216     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> getCurrentTimeMs();
<a name="l00217"></a>00217     
<a name="l00218"></a>00218     <span class="comment">// Generate a timeout value for the given ending time.</span>
<a name="l00219"></a>00219     <span class="comment">// Returns zero if endTime &lt;= current time &lt;= endTime+10%of timer resolution, otherwise returns a nonzero duration in ms.</span>
<a name="l00220"></a>00220     <span class="comment">// Timer resolution as above (18.2 hrs).</span>
<a name="l00221"></a>00221     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> generateTimeoutMs(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> endTimeMs);
<a name="l00222"></a>00222 
<a name="l00223"></a>00223 } <span class="comment">// namespace RCF</span>
<a name="l00224"></a>00224 
<a name="l00225"></a>00225 <span class="preprocessor">#endif // ! INCLUDE_RCF_TOOLS_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;
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.5 </small></address>
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About the Author

Jarl Lindrud

Australia Australia
Software developer, ex-resident of Sweden and now living in Canberra, Australia, working on distributed C++ applications. Jarl enjoys programming, but prefers skiing and playing table tennis. He derives immense satisfaction from referring to himself in third person.

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