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It is unwise to tie the lifespan of a barrier to any one of its participating
fibers. Although conceptually all waiting fibers awaken <span class="quote">“<span class="quote">simultaneously,</span>”</span>
because of the nature of fibers, in practice they will awaken one by one
- in indeterminate order.<sup>[<a name="fiber.synchronization.barriers.f0" href="#ftn.fiber.synchronization.barriers.f0" class="footnote">3</a>]</sup> The rest of the waiting fibers will still be blocked in <code class="computeroutput"><span class="identifier">wait</span><span class="special">()</span></code>,
+ in indeterminate order.<a href="#ftn.fiber.synchronization.barriers.f0" class="footnote" name="fiber.synchronization.barriers.f0"><sup class="footnote">[1]</sup></a> The rest of the waiting fibers will still be blocked in <code class="computeroutput"><span class="identifier">wait</span><span class="special">()</span></code>,
which must, before returning, access data members in the barrier object.
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<h5>
<a name="class_barrier_bridgehead"></a>
- <span><a name="class_barrier"></a></span>
+ <span class="phrase"><a name="class_barrier"></a></span>
<a class="link" href="barriers.html#class_barrier">Class <code class="computeroutput">barrier</code></a>
</h5>
<p>
</p>
<h5>
<a name="fiber.synchronization.barriers.h0"></a>
- <span><a name="fiber.synchronization.barriers.constructor"></a></span><a class="link" href="barriers.html#fiber.synchronization.barriers.constructor">Constructor</a>
+ <span class="phrase"><a name="fiber.synchronization.barriers.constructor"></a></span><a class="link" href="barriers.html#fiber.synchronization.barriers.constructor">Constructor</a>
</h5>
<pre class="programlisting"><span class="keyword">explicit</span> <span class="identifier">barrier</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">initial</span><span class="special">);</span>
</pre>
<div class="variablelist">
<p class="title"><b></b></p>
-<dl>
+<dl class="variablelist">
<dt><span class="term">Effects:</span></dt>
<dd><p>
Construct a barrier for <code class="computeroutput"><span class="identifier">initial</span></code>
</p>
<h5>
<a name="barrier_wait_bridgehead"></a>
- <span><a name="barrier_wait"></a></span>
+ <span class="phrase"><a name="barrier_wait"></a></span>
<a class="link" href="barriers.html#barrier_wait">Member function <code class="computeroutput">wait</code>()</a>
</h5>
<p>
</pre>
<div class="variablelist">
<p class="title"><b></b></p>
-<dl>
+<dl class="variablelist">
<dt><span class="term">Effects:</span></dt>
<dd><p>
Block until <code class="computeroutput"><span class="identifier">initial</span></code>
</dl>
</div>
<div class="footnotes">
-<br><hr width="100" align="left">
-<div class="footnote"><p><sup>[<a name="ftn.fiber.synchronization.barriers.f0" href="#fiber.synchronization.barriers.f0" class="para">3</a>] </sup>
+<br><hr style="width:100; text-align:left;margin-left: 0">
+<div id="ftn.fiber.synchronization.barriers.f0" class="footnote"><p><a href="#fiber.synchronization.barriers.f0" class="para"><sup class="para">[1] </sup></a>
The current implementation wakes fibers in FIFO order: the first to call
<code class="computeroutput"><span class="identifier">wait</span><span class="special">()</span></code>
wakes first, and so forth. But it is perilous to rely on the order in