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<h1>Module <a href="type_Lwt_condition.html">Lwt_condition</a></h1>
<pre><span class="keyword">module</span> Lwt_condition: <code class="code"><span class="keyword">sig</span></code> <a href="Lwt_condition.html">..</a> <code class="code"><span class="keyword">end</span></code></pre><div class="info module top">
Conditions<br>
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<br>
Condition variables to synchronize between threads.<br>
<pre><span id="TYPEt"><span class="keyword">type</span> <code class="type">'a</code> t</span> </pre>
<div class="info ">
Condition variable type. The type parameter denotes the type of
value propagated from notifier to waiter.<br>
</div>
<pre><span id="VALcreate"><span class="keyword">val</span> create</span> : <code class="type">unit -> 'a <a href="Lwt_condition.html#TYPEt">t</a></code></pre><div class="info ">
<code class="code">create ()</code> creates a new condition variable.<br>
</div>
<pre><span id="VALwait"><span class="keyword">val</span> wait</span> : <code class="type">?mutex:<a href="Lwt_mutex.html#TYPEt">Lwt_mutex.t</a> -> 'a <a href="Lwt_condition.html#TYPEt">t</a> -> 'a <a href="Lwt.html#TYPEt">Lwt.t</a></code></pre><div class="info ">
<code class="code">wait mutex condvar</code> will cause the current thread to block,
awaiting notification for a condition variable, <code class="code">condvar</code>. If
provided, the <code class="code">mutex</code> must have been previously locked (within
the scope of <code class="code"><span class="constructor">Lwt_mutex</span>.with_lock</code>, for example) and is
temporarily unlocked until the condition is notified. Upon
notification, <code class="code">mutex</code> is re-locked before <code class="code">wait</code> returns and
the thread's activity is resumed. When the awaited condition
is notified, the value parameter passed to <code class="code">notify</code> is
returned.<br>
</div>
<pre><span id="VALsignal"><span class="keyword">val</span> signal</span> : <code class="type">'a <a href="Lwt_condition.html#TYPEt">t</a> -> 'a -> unit</code></pre><div class="info ">
<code class="code">signal condvar value</code> notifies that a condition is ready. A
single waiting thread will be awoken and will receive the
notification value which will be returned from <code class="code">wait</code>. Note
that condition notification is not "sticky", i.e. if there is
no waiter when <code class="code">notify</code> is called, the notification will be
missed and the value discarded.<br>
</div>
<pre><span id="VALbroadcast"><span class="keyword">val</span> broadcast</span> : <code class="type">'a <a href="Lwt_condition.html#TYPEt">t</a> -> 'a -> unit</code></pre><div class="info ">
<code class="code">broadcast condvar value</code> notifies all waiting threads. Each
will be awoken in turn and will receive the same notification
value.<br>
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