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  <div class="section" id="threads-extension">
<span id="index-0"></span><h1>Threads Extension<a class="headerlink" href="#threads-extension" title="Permalink to this headline">¶</a></h1>
<p>In this chapter we will learn about using the Threads extension.</p>
<div class="section" id="creating-threads">
<span id="index-1"></span><h2>Creating Threads<a class="headerlink" href="#creating-threads" title="Permalink to this headline">¶</a></h2>
<p>Example (1):</p>
<div class="highlight-ring notranslate"><div class="highlight"><pre><span></span><span class="k">load</span> <span class="s">&quot;threads.ring&quot;</span>

<span class="k">func</span> <span class="n">main</span>

        <span class="n">t</span> <span class="o">=</span> <span class="n">new_thrd_t</span><span class="p">()</span>
        <span class="n">thrd_create</span><span class="p">(</span><span class="n">t</span><span class="p">,</span><span class="s">&quot;Hello()&quot;</span><span class="p">)</span>
        <span class="n">res</span> <span class="o">=</span> <span class="mi">0</span>
        <span class="n">thrd_join</span><span class="p">(</span><span class="n">t</span><span class="p">,</span> <span class="p">:</span><span class="n">res</span><span class="p">)</span>

<span class="k">func</span> <span class="n">Hello</span>

        <span class="o">?</span> <span class="s">&quot;Message from the Hello() function&quot;</span>
</pre></div>
</div>
</div>
<div class="section" id="more-examples">
<span id="index-2"></span><h2>More Examples<a class="headerlink" href="#more-examples" title="Permalink to this headline">¶</a></h2>
<p>Example (2):</p>
<div class="highlight-ring notranslate"><div class="highlight"><pre><span></span><span class="k">load</span> <span class="s">&quot;threads.ring&quot;</span>

<span class="k">func</span> <span class="n">main</span>

        <span class="n">t</span> <span class="o">=</span> <span class="n">new_thrd_t</span><span class="p">()</span>
        <span class="n">thrd_create</span><span class="p">(</span><span class="n">t</span><span class="p">,</span><span class="s">&quot;Hello()&quot;</span><span class="p">)</span>
        <span class="n">res</span> <span class="o">=</span> <span class="mi">0</span>
        <span class="n">thrd_join</span><span class="p">(</span><span class="n">t</span><span class="p">,</span> <span class="p">:</span><span class="n">res</span><span class="p">)</span>

        <span class="n">t2</span> <span class="o">=</span> <span class="n">new_thrd_t</span><span class="p">()</span>
        <span class="n">thrd_create</span><span class="p">(</span><span class="n">t2</span><span class="p">,</span><span class="s">&quot;Hello2()&quot;</span><span class="p">)</span>
        <span class="n">res2</span> <span class="o">=</span> <span class="mi">0</span>
        <span class="n">thrd_join</span><span class="p">(</span><span class="n">t2</span><span class="p">,</span> <span class="p">:</span><span class="n">res2</span><span class="p">)</span>

        <span class="o">?</span> <span class="p">:</span><span class="k">done</span>

<span class="k">func</span> <span class="n">Hello</span>

        <span class="o">?</span> <span class="s">&quot;Message from the Hello() function&quot;</span>

<span class="k">func</span> <span class="n">Hello2</span>

        <span class="o">?</span> <span class="s">&quot;Message from the Hello2() function&quot;</span>
</pre></div>
</div>
<p>Example (3):</p>
<div class="highlight-ring notranslate"><div class="highlight"><pre><span></span><span class="k">load</span> <span class="s">&quot;threads.ring&quot;</span>

<span class="k">func</span> <span class="n">main</span>

        <span class="n">nThreads</span> <span class="o">=</span> <span class="mi">2</span>
        <span class="n">aList</span> <span class="o">=</span> <span class="kt">list</span><span class="p">(</span><span class="n">nThreads</span><span class="p">)</span>

        <span class="k">for</span> <span class="n">x</span><span class="o">=</span><span class="mi">1</span> <span class="k">to</span> <span class="n">nThreads</span>
                <span class="n">aList</span><span class="o">[</span><span class="n">x</span><span class="o">]</span> <span class="o">=</span> <span class="n">new_thrd_t</span><span class="p">()</span>
                <span class="n">thrd_create</span><span class="p">(</span><span class="n">aList</span><span class="o">[</span><span class="n">x</span><span class="o">]</span><span class="p">,</span><span class="s">&quot;Hello(&quot;</span><span class="o">+</span><span class="n">x</span><span class="o">+</span><span class="s">&quot;)&quot;</span><span class="p">)</span>
        <span class="k">next</span>

        <span class="k">for</span> <span class="n">x</span><span class="o">=</span><span class="mi">1</span> <span class="k">to</span> <span class="n">nThreads</span>
                <span class="n">res</span><span class="o">=</span> <span class="mi">0</span>
                <span class="n">thrd_join</span><span class="p">(</span><span class="n">aList</span><span class="o">[</span><span class="n">x</span><span class="o">]</span><span class="p">,:</span><span class="n">res</span><span class="p">)</span>
        <span class="k">next</span>

        <span class="o">?</span> <span class="p">:</span><span class="k">Done</span>

        <span class="n">shutdown</span><span class="p">()</span>

<span class="k">func</span> <span class="n">Hello</span> <span class="n">x</span>

        <span class="k">for</span> <span class="n">r</span><span class="o">=</span><span class="mi">1</span> <span class="k">to</span> <span class="mi">100</span>
                <span class="o">?</span> <span class="s">&quot;Message from the Hello(&quot;</span><span class="o">+</span><span class="n">x</span><span class="o">+</span><span class="s">&quot;) function&quot;</span>
        <span class="k">next</span>
</pre></div>
</div>
<p>Example (4):</p>
<div class="highlight-ring notranslate"><div class="highlight"><pre><span></span><span class="k">load</span> <span class="s">&quot;threads.ring&quot;</span>

<span class="k">func</span> <span class="n">main</span>

        <span class="n">nThreads</span> <span class="o">=</span> <span class="mi">10</span>
        <span class="n">aList</span> <span class="o">=</span> <span class="kt">list</span><span class="p">(</span><span class="n">nThreads</span><span class="p">)</span>

        <span class="k">for</span> <span class="n">x</span><span class="o">=</span><span class="mi">1</span> <span class="k">to</span> <span class="n">nThreads</span>
                <span class="n">aList</span><span class="o">[</span><span class="n">x</span><span class="o">]</span> <span class="o">=</span> <span class="n">new_thrd_t</span><span class="p">()</span>
                <span class="n">thrd_create</span><span class="p">(</span><span class="n">aList</span><span class="o">[</span><span class="n">x</span><span class="o">]</span><span class="p">,</span><span class="s">&quot;Hello(&quot;</span><span class="o">+</span><span class="n">x</span><span class="o">+</span><span class="s">&quot;)&quot;</span><span class="p">)</span>
        <span class="k">next</span>

        <span class="k">for</span> <span class="n">k</span><span class="o">=</span><span class="mi">1</span> <span class="k">to</span> <span class="n">nThreads</span>
                 <span class="o">?</span> <span class="s">&quot;*** Before join: &quot;</span> <span class="o">+</span> <span class="n">k</span> <span class="o">+</span> <span class="s">&quot; *** &quot;</span>
                 <span class="n">res</span> <span class="o">=</span> <span class="mi">0</span>
                 <span class="n">thrd_join</span><span class="p">(</span><span class="n">aList</span><span class="o">[</span><span class="n">K</span><span class="o">]</span><span class="p">,:</span><span class="n">res</span><span class="p">)</span>
                 <span class="o">?</span> <span class="s">&quot;*** After join: &quot;</span> <span class="o">+</span> <span class="n">k</span> <span class="o">+</span> <span class="s">&quot; *** &quot;</span>
        <span class="k">next</span>

        <span class="o">?</span> <span class="s">&quot; ===== Done ========== &quot;</span>

<span class="k">func</span> <span class="n">Hello</span> <span class="n">x</span>

        <span class="k">for</span> <span class="n">r</span><span class="o">=</span><span class="mi">1</span> <span class="k">to</span> <span class="mi">100</span>
                <span class="o">?</span> <span class="s">&quot;(&quot;</span><span class="o">+</span><span class="n">r</span><span class="o">+</span><span class="s">&quot;) Message from the Hello(&quot;</span><span class="o">+</span><span class="n">x</span><span class="o">+</span><span class="s">&quot;) function&quot;</span>
        <span class="k">next</span>
</pre></div>
</div>
</div>
<div class="section" id="reference">
<span id="index-3"></span><h2>Reference<a class="headerlink" href="#reference" title="Permalink to this headline">¶</a></h2>
<p>Constants:</p>
<ul class="simple">
<li><p>TIME_UTC</p></li>
<li><p>TINYCTHREAD_VERSION_MAJOR</p></li>
<li><p>TINYCTHREAD_VERSION_MINOR</p></li>
<li><p>TINYCTHREAD_VERSION</p></li>
<li><p>thrd_error</p></li>
<li><p>thrd_success</p></li>
<li><p>thrd_timedout</p></li>
<li><p>thrd_busy</p></li>
<li><p>thrd_nomem</p></li>
<li><p>mtx_plain</p></li>
<li><p>mtx_timed</p></li>
<li><p>mtx_recursive</p></li>
</ul>
<p>Functions:</p>
<ul class="simple">
<li><p>int mtx_init(mtx_t <a href="#id1"><span class="problematic" id="id2">*</span></a>mtx, int type)</p></li>
<li><p>void mtx_destroy(mtx_t <a href="#id3"><span class="problematic" id="id4">*</span></a>mtx)</p></li>
<li><p>int mtx_lock(mtx_t <a href="#id5"><span class="problematic" id="id6">*</span></a>mtx)</p></li>
<li><p>int mtx_timedlock(mtx_t <a href="#id7"><span class="problematic" id="id8">*</span></a>mtx, const struct timespec <a href="#id9"><span class="problematic" id="id10">*</span></a>ts)</p></li>
<li><p>int mtx_trylock(mtx_t <a href="#id11"><span class="problematic" id="id12">*</span></a>mtx)</p></li>
<li><p>int mtx_unlock(mtx_t <a href="#id13"><span class="problematic" id="id14">*</span></a>mtx)</p></li>
<li><p>int cnd_init(cnd_t <a href="#id15"><span class="problematic" id="id16">*</span></a>cond)</p></li>
<li><p>void cnd_destroy(cnd_t <a href="#id17"><span class="problematic" id="id18">*</span></a>cond)</p></li>
<li><p>int cnd_signal(cnd_t <a href="#id19"><span class="problematic" id="id20">*</span></a>cond)</p></li>
<li><p>int cnd_broadcast(cnd_t <a href="#id21"><span class="problematic" id="id22">*</span></a>cond)</p></li>
<li><p>int cnd_wait(cnd_t <a href="#id23"><span class="problematic" id="id24">*</span></a>cond, mtx_t <a href="#id25"><span class="problematic" id="id26">*</span></a>mtx)</p></li>
<li><p>int cnd_timedwait(cnd_t <a href="#id27"><span class="problematic" id="id28">*</span></a>cond, mtx_t <a href="#id29"><span class="problematic" id="id30">*</span></a>mtx, const struct timespec <a href="#id31"><span class="problematic" id="id32">*</span></a>ts)</p></li>
<li><p>int thrd_create(thrd_t <a href="#id33"><span class="problematic" id="id34">*</span></a>thr, const char <a href="#id35"><span class="problematic" id="id36">*</span></a>cEvent)</p></li>
<li><p>thrd_t thrd_current(void)</p></li>
<li><p>int thrd_detach(thrd_t thr)</p></li>
<li><p>int thrd_equal(thrd_t thr0, thrd_t thr1)</p></li>
<li><p>void thrd_exit(int res)</p></li>
<li><p>int thrd_join(thrd_t thr, int <a href="#id37"><span class="problematic" id="id38">*</span></a>res)</p></li>
<li><p>int thrd_sleep(const struct timespec <a href="#id39"><span class="problematic" id="id40">*</span></a>duration, struct timespec <a href="#id41"><span class="problematic" id="id42">*</span></a>remaining)</p></li>
<li><p>void thrd_yield(void)</p></li>
<li><p>void tss_delete(tss_t key)</p></li>
<li><p>void <a href="#id43"><span class="problematic" id="id44">*</span></a>tss_get(tss_t key)</p></li>
<li><p>int tss_set(tss_t key, void <a href="#id45"><span class="problematic" id="id46">*</span></a>val)</p></li>
</ul>
</div>
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