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<li>
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<a class="reference reference-toplevel" href="#7" id="57">Types</a>
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<ul class="simple simple-toc-section">
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<li><a class="reference" href="#AsyncSemaphore"
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title="AsyncSemaphore = ref object of RootObj
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size*: int
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count: int
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queue: seq[Future[void]]">AsyncSemaphore</a></li>
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</ul>
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</li>
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<li>
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<a class="reference reference-toplevel" href="#12" id="62">Procs</a>
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<ul class="simple simple-toc-section">
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<ul class="simple nested-toc-section">acquire
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<li><a class="reference" href="#acquire%2CAsyncSemaphore"
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title="acquire(s: AsyncSemaphore): Future[void]">acquire(s: AsyncSemaphore): Future[void]</a></li>
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</ul>
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<ul class="simple nested-toc-section">count
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<li><a class="reference" href="#count%2CAsyncSemaphore"
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title="count(s: AsyncSemaphore): int">count(s: AsyncSemaphore): int</a></li>
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</ul>
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<ul class="simple nested-toc-section">forceAcquire
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<li><a class="reference" href="#forceAcquire%2CAsyncSemaphore"
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title="forceAcquire(s: AsyncSemaphore)">forceAcquire(s: AsyncSemaphore)</a></li>
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</ul>
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<ul class="simple nested-toc-section">newAsyncSemaphore
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<li><a class="reference" href="#newAsyncSemaphore%2Cint"
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title="newAsyncSemaphore(size: int): AsyncSemaphore">newAsyncSemaphore(size: int): AsyncSemaphore</a></li>
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</ul>
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<ul class="simple nested-toc-section">release
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<li><a class="reference" href="#release%2CAsyncSemaphore"
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title="release(s: AsyncSemaphore)">release(s: AsyncSemaphore)</a></li>
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</ul>
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<ul class="simple nested-toc-section">tryAcquire
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<li><a class="reference" href="#tryAcquire%2CAsyncSemaphore"
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title="tryAcquire(s: AsyncSemaphore): bool">tryAcquire(s: AsyncSemaphore): bool</a></li>
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</ul>
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</ul>
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</li>
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</ul>
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</div>
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<a
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href="https://github.com/status-im/nim-libp2p/tree/ex-x/libp2p/utils/semaphore.nim#L1"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/utils/semaphore.nim#L1" class="link-seesrc" target="_blank" >Edit</a>
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<div id="tocRoot"></div>
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<p class="module-desc"></p>
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<div class="section" id="7">
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<h1><a class="toc-backref" href="#7">Types</a></h1>
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<dl class="item">
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<div id="AsyncSemaphore" class="tohide">
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<dt><pre><a href="semaphore.html#AsyncSemaphore"><span class="Identifier">AsyncSemaphore</span></a> <span class="Other">=</span> <span class="Keyword">ref</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <span class="Identifier">RootObj</span>
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<span class="Identifier">size</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
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<span class="Identifier">count</span><span class="Other">:</span> <span class="Identifier">int</span>
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<span class="Identifier">queue</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">Future</span><span class="Other">[</span><span class="Identifier">void</span><span class="Other">]</span><span class="Other">]</span>
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</pre></dt>
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<dd>
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<a
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href="https://github.com/status-im/nim-libp2p/tree/ex-x/libp2p/utils/semaphore.nim#L21"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/utils/semaphore.nim#L21" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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</dl></div>
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<div class="section" id="12">
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<h1><a class="toc-backref" href="#12">Procs</a></h1>
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<dl class="item">
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<div id="acquire,AsyncSemaphore" class="tohide">
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<dt><pre><span class="Keyword">proc</span> <a href="#acquire%2CAsyncSemaphore"><span class="Identifier">acquire</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <a href="semaphore.html#AsyncSemaphore"><span class="Identifier">AsyncSemaphore</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">Future</span><span class="Other">[</span><span class="Identifier">void</span><span class="Other">]</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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Acquire a resource and decrement the resource counter. If no more resources are available, the returned future will not complete until the resource count goes above 0.
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<a
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href="https://github.com/status-im/nim-libp2p/tree/ex-x/libp2p/utils/semaphore.nim#L41"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/utils/semaphore.nim#L41" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="count,AsyncSemaphore" class="tohide">
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<dt><pre><span class="Keyword">proc</span> <a href="#count%2CAsyncSemaphore"><span class="Identifier">count</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <a href="semaphore.html#AsyncSemaphore"><span class="Identifier">AsyncSemaphore</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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<a
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href="https://github.com/status-im/nim-libp2p/tree/ex-x/libp2p/utils/semaphore.nim#L29"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/utils/semaphore.nim#L29" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="forceAcquire,AsyncSemaphore" class="tohide">
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<dt><pre><span class="Keyword">proc</span> <a href="#forceAcquire%2CAsyncSemaphore"><span class="Identifier">forceAcquire</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <a href="semaphore.html#AsyncSemaphore"><span class="Identifier">AsyncSemaphore</span></a><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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ForceAcquire will always succeed, creating a temporary slot if required. This temporary slot will stay usable until there is less <tt class="docutils literal"><span class="pre"><span class="Identifier">acquire</span></span></tt>s than <tt class="docutils literal"><span class="pre"><span class="Identifier">release</span></span></tt>s
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<a
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href="https://github.com/status-im/nim-libp2p/tree/ex-x/libp2p/utils/semaphore.nim#L65"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/utils/semaphore.nim#L65" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="newAsyncSemaphore,int" class="tohide">
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<dt><pre><span class="Keyword">proc</span> <a href="#newAsyncSemaphore%2Cint"><span class="Identifier">newAsyncSemaphore</span></a><span class="Other">(</span><span class="Identifier">size</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <a href="semaphore.html#AsyncSemaphore"><span class="Identifier">AsyncSemaphore</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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<a
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href="https://github.com/status-im/nim-libp2p/tree/ex-x/libp2p/utils/semaphore.nim#L26"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/utils/semaphore.nim#L26" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="release,AsyncSemaphore" class="tohide">
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<dt><pre><span class="Keyword">proc</span> <a href="#release%2CAsyncSemaphore"><span class="Identifier">release</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <a href="semaphore.html#AsyncSemaphore"><span class="Identifier">AsyncSemaphore</span></a><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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Release a resource from the semaphore, by picking the first future from the queue and completing it and incrementing the internal resource count
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<a
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href="https://github.com/status-im/nim-libp2p/tree/ex-x/libp2p/utils/semaphore.nim#L72"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/utils/semaphore.nim#L72" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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<div id="tryAcquire,AsyncSemaphore" class="tohide">
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<dt><pre><span class="Keyword">proc</span> <a href="#tryAcquire%2CAsyncSemaphore"><span class="Identifier">tryAcquire</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <a href="semaphore.html#AsyncSemaphore"><span class="Identifier">AsyncSemaphore</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
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<dd>
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Attempts to acquire a resource, if successful returns true, otherwise false
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<a
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href="https://github.com/status-im/nim-libp2p/tree/ex-x/libp2p/utils/semaphore.nim#L31"
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class="link-seesrc" target="_blank">Source</a>
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<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/utils/semaphore.nim#L31" class="link-seesrc" target="_blank" >Edit</a>
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</dd>
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</div>
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</dl></div>
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<small style="color: var(--hint);">Made with Nim. Generated: 2024-03-06 12:42:30 UTC</small>
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