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<p class='location'>Struct KernelCmd</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.queue">queue</a><a href="#method.gwo">gwo</a><a href="#method.gws">gws</a><a href="#method.lws">lws</a><a href="#method.global_work_offset">global_work_offset</a><a href="#method.global_work_size">global_work_size</a><a href="#method.local_work_size">local_work_size</a><a href="#method.ewait">ewait</a><a href="#method.enew">enew</a><a href="#method.enq">enq</a></div></div><p class='location'><a href='../index.html'>ocl</a>::<wbr><a href='index.html'>builders</a></p><script>window.sidebarCurrent = {name: 'KernelCmd', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='../index.html'>ocl</a>::<wbr><a href='index.html'>builders</a>::<wbr><a class="struct" href=''>KernelCmd</a></span><span class='out-of-band'><span id='render-detail'>
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
[<span class='inner'>−</span>]
</a>
</span><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#55-63' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'><div class="docblock attributes">#[must_use = "commands do nothing unless enqueued"]
</div>pub struct KernelCmd<'k> { /* fields omitted */ }</pre><div class='docblock'><p>A kernel command builder used to enqueue a kernel with a mix of default
and optionally specified arguments.</p>
</div>
<h2 id='methods' class='small-section-header'>
Methods<a href='#methods' class='anchor'></a>
</h2>
<h3 id='impl' class='impl'><span class='in-band'><code>impl<'k> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#66-212' title='goto source code'>[src]</a></span></h3>
<div class='docblock'><p>A kernel enqueue command.</p>
</div><div class='impl-items'><h4 id='method.queue' class="method"><span id='queue.v' class='invisible'><code>pub fn <a href='#method.queue' class='fnname'>queue</a><'q, Q>(self, queue: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'q </a>Q) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k> <span class="where fmt-newline">where<br> 'q: 'k,<br> Q: 'k + <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.AsRef.html" title="trait core::convert::AsRef">AsRef</a><<a class="struct" href="../../ocl_core/types/abs/struct.CommandQueue.html" title="struct ocl_core::types::abs::CommandQueue">CommandQueueCore</a>>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#72-76' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Specifies a queue to use for this call only.</p>
<p>Overrides the kernel's default queue if one is set. If no default
queue is set, this method <strong>must</strong> be called before enqueuing the
kernel.</p>
</div><h4 id='method.gwo' class="method"><span id='gwo.v' class='invisible'><code>pub fn <a href='#method.gwo' class='fnname'>gwo</a><D: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="../../ocl/enum.SpatialDims.html" title="enum ocl::SpatialDims">SpatialDims</a>>>(self, gwo: D) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#80-83' title='goto source code'>[src]</a></span></h4>
<div class='stability'><div class='stab deprecated'>Deprecated since 0.18.0<p>: Use <code>::global_work_offset</code> instead.</p>
</div></div><div class='docblock'><p>Specifies a global work offset for this call only.</p>
</div><h4 id='method.gws' class="method"><span id='gws.v' class='invisible'><code>pub fn <a href='#method.gws' class='fnname'>gws</a><D: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="../../ocl/enum.SpatialDims.html" title="enum ocl::SpatialDims">SpatialDims</a>>>(self, gws: D) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#87-90' title='goto source code'>[src]</a></span></h4>
<div class='stability'><div class='stab deprecated'>Deprecated since 0.18.0<p>: Use <code>::global_work_size</code> instead.</p>
</div></div><div class='docblock'><p>Specifies a global work size for this call only.</p>
</div><h4 id='method.lws' class="method"><span id='lws.v' class='invisible'><code>pub fn <a href='#method.lws' class='fnname'>lws</a><D: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="../../ocl/enum.SpatialDims.html" title="enum ocl::SpatialDims">SpatialDims</a>>>(self, lws: D) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#94-97' title='goto source code'>[src]</a></span></h4>
<div class='stability'><div class='stab deprecated'>Deprecated since 0.18.0<p>: Use <code>::local_work_size</code> instead.</p>
</div></div><div class='docblock'><p>Specifies a local work size for this call only.</p>
</div><h4 id='method.global_work_offset' class="method"><span id='global_work_offset.v' class='invisible'><code>pub fn <a href='#method.global_work_offset' class='fnname'>global_work_offset</a><D: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="../../ocl/enum.SpatialDims.html" title="enum ocl::SpatialDims">SpatialDims</a>>>(self, gwo: D) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#100-103' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Specifies a global work offset for this call only.</p>
</div><h4 id='method.global_work_size' class="method"><span id='global_work_size.v' class='invisible'><code>pub fn <a href='#method.global_work_size' class='fnname'>global_work_size</a><D: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="../../ocl/enum.SpatialDims.html" title="enum ocl::SpatialDims">SpatialDims</a>>>(self, gws: D) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#106-109' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Specifies a global work size for this call only.</p>
</div><h4 id='method.local_work_size' class="method"><span id='local_work_size.v' class='invisible'><code>pub fn <a href='#method.local_work_size' class='fnname'>local_work_size</a><D: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="../../ocl/enum.SpatialDims.html" title="enum ocl::SpatialDims">SpatialDims</a>>>(self, lws: D) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#112-115' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Specifies a local work size for this call only.</p>
</div><h4 id='method.ewait' class="method"><span id='ewait.v' class='invisible'><code>pub fn <a href='#method.ewait' class='fnname'>ewait</a><'e, Ewl>(self, ewait: Ewl) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k> <span class="where fmt-newline">where<br> 'e: 'k,<br> Ewl: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="../../ocl/builders/enum.ClWaitListPtrEnum.html" title="enum ocl::builders::ClWaitListPtrEnum">ClWaitListPtrEnum</a><'e>>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#145-149' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Specifies an event or list of events to wait on before the command
will run.</p>
<p>When events generated using the <code>::enew</code> method of <strong>other</strong>,
previously enqueued commands are passed here (either individually or
as part of an <a href="struct.EventList.html"><code>EventList</code></a>), this command will not execute until
those commands have completed.</p>
<p>Using events can compliment the use of queues to order commands by
creating temporal dependencies between them (where commands in one
queue must wait for the completion of commands in another). Events can
also supplant queues altogether when, for example, using out-of-order
queues.</p>
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
<div class='information'><div class='tooltip ignore'>ⓘ<span class='tooltiptext'>This example is not tested</span></div></div><pre class="rust rust-example-rendered ignore">
<span class="comment">// Create an event list:</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">event_list</span> <span class="op">=</span> <span class="ident">EventList</span>::<span class="ident">new</span>();
<span class="comment">// Enqueue a kernel on `queue_1`, creating an event representing the kernel</span>
<span class="comment">// command in our list:</span>
<span class="ident">kernel</span>.<span class="ident">cmd</span>().<span class="ident">queue</span>(<span class="kw-2">&</span><span class="ident">queue_1</span>).<span class="ident">enew</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">event_list</span>).<span class="ident">enq</span>()<span class="question-mark">?</span>;
<span class="comment">// Read from a buffer using `queue_2`, ensuring the read does not begin until</span>
<span class="comment">// after the kernel command has completed:</span>
<span class="ident">buffer</span>.<span class="ident">read</span>(<span class="ident">rwvec</span>.<span class="ident">clone</span>()).<span class="ident">queue</span>(<span class="kw-2">&</span><span class="ident">queue_2</span>).<span class="ident">ewait</span>(<span class="kw-2">&</span><span class="ident">event_list</span>).<span class="ident">enq_async</span>()<span class="question-mark">?</span>;</pre>
</div><h4 id='method.enew' class="method"><span id='enew.v' class='invisible'><code>pub fn <a href='#method.enew' class='fnname'>enew</a><'e, En>(self, new_event_dest: En) -> <a class="struct" href="../../ocl/builders/struct.KernelCmd.html" title="struct ocl::builders::KernelCmd">KernelCmd</a><'k> <span class="where fmt-newline">where<br> 'e: 'k,<br> En: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="../../ocl/builders/enum.ClNullEventPtrEnum.html" title="enum ocl::builders::ClNullEventPtrEnum">ClNullEventPtrEnum</a><'e>>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#182-186' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Specifies the destination to store a new, optionally created event
associated with this command.</p>
<p>The destination can be a mutable reference to an empty event (created
using <a href="struct.Event.html#method.empty"><code>Event::empty</code></a>) or a mutable reference to an event list.</p>
<p>After this command is enqueued, the event in the destination can be
passed to the <code>::ewait</code> method of another command. Doing so will cause
the other command to wait until this command has completed before
executing.</p>
<p>Using events can compliment the use of queues to order commands by
creating temporal dependencies between them (where commands in one
queue must wait for the completion of commands in another). Events can
also supplant queues altogether when, for example, using out-of-order
queues.</p>
<h1 id="example-1" class="section-header"><a href="#example-1">Example</a></h1>
<div class='information'><div class='tooltip ignore'>ⓘ<span class='tooltiptext'>This example is not tested</span></div></div><pre class="rust rust-example-rendered ignore">
<span class="comment">// Create an event list:</span>
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">event</span> <span class="op">=</span> <span class="ident">Event</span>::<span class="ident">empty</span>();
<span class="comment">// Enqueue a kernel on `queue_1`, creating an event representing the kernel</span>
<span class="comment">// command in our list:</span>
<span class="ident">kernel</span>.<span class="ident">cmd</span>().<span class="ident">queue</span>(<span class="kw-2">&</span><span class="ident">queue_1</span>).<span class="ident">enew</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">event</span>).<span class="ident">enq</span>()<span class="question-mark">?</span>;
<span class="comment">// Read from a buffer using `queue_2`, ensuring the read does not begin until</span>
<span class="comment">// after the kernel command has completed:</span>
<span class="ident">buffer</span>.<span class="ident">read</span>(<span class="ident">rwvec</span>.<span class="ident">clone</span>()).<span class="ident">queue</span>(<span class="kw-2">&</span><span class="ident">queue_2</span>).<span class="ident">ewait</span>(<span class="kw-2">&</span><span class="ident">event</span>).<span class="ident">enq_async</span>()<span class="question-mark">?</span>;</pre>
</div><h4 id='method.enq' class="method"><span id='enq.v' class='invisible'><code>pub unsafe fn <a href='#method.enq' class='fnname'>enq</a>(self) -> <a class="type" href="../../ocl/error/type.Result.html" title="type ocl::error::Result">OclResult</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/ocl/standard/kernel.rs.html#195-211' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Enqueues this kernel command.</p>
<h1 id="safety" class="section-header"><a href="#safety">Safety</a></h1>
<p>All kernel code must be considered untrusted. Therefore the act of
calling this function contains implied unsafety even though the API
itself is safe.</p>
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