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<div class="title">thread.cpp</div>  </div>
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<p>A simple example of threading and join operation.</p>
<div class="fragment"><div class="line"><span class="comment">// Copyright (C) 2006-2014 David Sugar, Tycho Softworks.</span></div><div class="line"><span class="comment">// Copyright (C) 2015 Cherokees of Idaho.</span></div><div class="line"><span class="comment">//</span></div><div class="line"><span class="comment">// This file is part of GNU uCommon C++.</span></div><div class="line"><span class="comment">//</span></div><div class="line"><span class="comment">// GNU uCommon C++ is free software: you can redistribute it and/or modify</span></div><div class="line"><span class="comment">// it under the terms of the GNU Lesser General Public License as published</span></div><div class="line"><span class="comment">// by the Free Software Foundation, either version 3 of the License, or</span></div><div class="line"><span class="comment">// (at your option) any later version.</span></div><div class="line"><span class="comment">//</span></div><div class="line"><span class="comment">// GNU uCommon C++ is distributed in the hope that it will be useful,</span></div><div class="line"><span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div><div class="line"><span class="comment">// GNU Lesser General Public License for more details.</span></div><div class="line"><span class="comment">//</span></div><div class="line"><span class="comment">// You should have received a copy of the GNU Lesser General Public License</span></div><div class="line"><span class="comment">// along with GNU uCommon C++.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div><div class="line"></div><div class="line"><span class="preprocessor">#ifndef DEBUG</span></div><div class="line"><span class="preprocessor">#define DEBUG</span></div><div class="line"><span class="preprocessor">#endif</span></div><div class="line"></div><div class="line"><span class="preprocessor">#include &lt;<a class="code" href="a00503.html">ucommon/ucommon.h</a>&gt;</span></div><div class="line"></div><div class="line"><span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"></div><div class="line"><span class="keyword">using namespace </span><a class="code" href="a00563.html">ucommon</a>;</div><div class="line"></div><div class="line"><span class="keyword">static</span> <span class="keywordtype">unsigned</span> count = 0;</div><div class="line"></div><div class="line"><span class="keyword">class </span>testLocal : <span class="keyword">public</span> Thread::Local</div><div class="line">{</div><div class="line"><span class="keyword">private</span>:</div><div class="line">    <span class="keyword">virtual</span> <span class="keywordtype">void</span> release(<span class="keywordtype">void</span> *mem) __FINAL {</div><div class="line">        ::free(mem);</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="keyword">virtual</span> <span class="keywordtype">void</span> *allocate() __FINAL {</div><div class="line">        return ::malloc(100);</div><div class="line">    }</div><div class="line">};</div><div class="line"></div><div class="line"><span class="keyword">static</span> testLocal local;</div><div class="line"></div><div class="line"><span class="keyword">class </span>testThread : <span class="keyword">public</span> JoinableThread</div><div class="line">{</div><div class="line"><span class="keyword">public</span>:</div><div class="line">    testThread() : JoinableThread() {};</div><div class="line"></div><div class="line">    <span class="keywordtype">void</span> run(<span class="keywordtype">void</span>) {</div><div class="line">        assert(local.get() == <span class="keyword">nullptr</span>);</div><div class="line">        assert(*local != <span class="keyword">nullptr</span>);</div><div class="line"></div><div class="line">        ++count;</div><div class="line">        ::sleep(2);</div><div class="line">    };</div><div class="line">};</div><div class="line"></div><div class="line"><span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> <span class="keywordtype">int</span> main()</div><div class="line">{</div><div class="line">    time_t now, later;</div><div class="line">    testThread *thr;</div><div class="line">    <span class="keywordtype">void</span> *mem;</div><div class="line"></div><div class="line">    assert(local.get() == <span class="keyword">nullptr</span>);</div><div class="line">    mem = *local;</div><div class="line">    assert(mem != <span class="keyword">nullptr</span>);</div><div class="line">    assert(mem == *local);</div><div class="line"></div><div class="line">    time(&amp;now);</div><div class="line">    thr = <span class="keyword">new</span> testThread();</div><div class="line">    thr-&gt;start();</div><div class="line">    Thread::sleep(10);</div><div class="line">    <span class="keyword">delete</span> thr;</div><div class="line">    assert(count == 1);</div><div class="line">    time(&amp;later);</div><div class="line">    assert(later &gt;= now + 1);</div><div class="line"></div><div class="line">    time(&amp;now);</div><div class="line">    TimedEvent evt;</div><div class="line">    evt.wait(2000);</div><div class="line">    time(&amp;later);</div><div class="line">    assert(later &gt;= now + 1);</div><div class="line">    <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div></div><!-- fragment --> </div><!-- contents -->
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