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Apache Qpid : OSVC
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This page last changed on Apr 11, 2008 by <font color="#0050B2">cctrieloff</font>.
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<h3><a name="OSVC-ARHEL4Grimoire"></a>A RHEL4 Grimoire</h3>
<p>by Michael Goulish on this 11th day of April, 2008</p>
<h2><a name="OSVC-Introduction"></a>Introduction</h2>
<p>Programmer! Turn back now, if you can, to the daylit world!</p>
<p>But if you must walk this road - take with you this map! Do not stray into the mires and pits where I have wandered and despaired.</p>
<p>Herein I will describe what I can of the perils I have encountered in the antique land of RHEL4.</p>
<h2><a name="OSVC-Iteratorsandthe%22%3E%22operator."></a>Iterators and the "->" operator.</h2>
<p>I believe this is a compiler problem with the -> operator, in the neighborhood of any kind of iterators.</p>
<p>Code like this will not compile:</p>
<div class="code"><div class="codeContent">
<pre class="code-java">ConsumerImplMap::iterator i = consumers.find(delivery.getTag());
<span class="code-keyword">if</span> (i != consumers.end())
{ get_pointer(i)->acknowledged(delivery); <span class="code-comment">// <--- Bad! }</span></pre>
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<p>Do this instead:</p>
<div class="code"><div class="codeContent">
<pre class="code-java">ConsumerImplMap::iterator i = consumers.find(delivery.getTag());
<span class="code-keyword">if</span> (i != consumers.end())
{ (*i).second->complete(delivery); <span class="code-comment">// <--- Good! }</span></pre>
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<p>( Thanks, Kim! )</p>
<h2><a name="OSVC-Don%27tuseBOOSTFIXTURETESTCASE"></a>Don't use BOOST_FIXTURE_TEST_CASE</h2>
<p>Because it Doesn't Exist.</p>
<p>All it does is allow you to use a class (or struct) declaration in many test cases without declaring it in every one.</p>
<p>So what? Big deal! Just declare your structure in each test case, and use the QPID_AUTO_TEST_CASE macro instead!</p>
<p>If you have this struct:</p>
<div class="code"><div class="codeContent">
<pre class="code-java">struct ClientSessionFixture : <span class="code-keyword">public</span> Foo
{ <span class="code-object">int</span> bar; }</pre>
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<p>Don't do this:</p>
<div class="code"><div class="codeContent">
<pre class="code-java">BOOST_FIXTURE_TEST_CASE(testQueueQuery, ClientSessionFixture)
{ bar = 666; BOOST_CHECK_EQUAL ( bar, 666 ); }</pre>
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<p>Do do this:</p>
<div class="code"><div class="codeContent">
<pre class="code-java">QPID_AUTO_TEST_CASE(testQueueQuery)
{ ClientSessionFixture fix; fix.bar = 666; BOOST_CHECK_EQUAL ( fix.bar, 666 ); }</pre>
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<p>(Thanks, Alan!)</p>
<h2><a name="OSVC-Don%27tusetheBOOST%5C%7B%7DTEST%7B%7Dmacros%5C%21"></a>Don't use the BOOST_<b><em>TEST</em></b> macros !</h2>
<p>If you are tempted to use</p>
<div class="code"><div class="codeContent">
<pre class="code-java">BOOST_AUTO_TEST_SUITE, or
BOOST_AUTO_TEST_CASE, or
BOOST_AUTO_TEST_SUITE_END,</pre>
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<p>dont!</p>
<p>Use instead:</p>
<div class="code"><div class="codeContent">
<pre class="code-java">QPID_AUTO_TEST_SUITE, or
QPID_AUTO_TEST_CASE, or
QPID_AUTO_TEST_SUITE_END !</pre>
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<p>They turn into Appropriate Things depending on the version of Boost you are using.</p>
<p>Sometimes the Appropriate Thing is whitespace...</p>
<p>(Thanks, Alan and Kim !)</p>
<h2><a name="OSVC-Don%27tuseboost%3A%3Aiostreams."></a>Don't use boost::iostreams.</h2>
<p>They don't exist.</p>
<div class="code"><div class="codeContent">
<pre class="code-java">/usr/include/boost/iostreams/: No such file or directory</pre>
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<p>Instead, use low-level Unix IO, from the Dawn of Time.</p>
<div class="code"><div class="codeContent">
<pre class="code-java">open()
read()
write()</pre>
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<td align="center"><font color="grey">Document generated by Confluence on Apr 22, 2008 02:47</font></td>
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