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</pre><pre class="rust ">
<span class="doccomment">//! An `OpenCL` command queue.</span>
<span class="kw">use</span> <span class="ident">std</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ops</span>::{<span class="ident">Deref</span>, <span class="ident">DerefMut</span>};
<span class="kw">use</span> <span class="ident">core</span>::<span class="ident">error</span>::{<span class="prelude-ty">Result</span> <span class="kw">as</span> <span class="ident">OclResult</span>};
<span class="kw">use</span> <span class="ident">core</span>::{<span class="self">self</span>, <span class="ident">CommandQueue</span> <span class="kw">as</span> <span class="ident">CommandQueueCore</span>, <span class="ident">CommandQueueInfo</span>, <span class="ident">CommandQueueInfoResult</span>,
<span class="ident">OpenclVersion</span>, <span class="ident">CommandQueueProperties</span>, <span class="ident">ClWaitListPtr</span>, <span class="ident">ClContextPtr</span>};
<span class="kw">use</span> <span class="ident">standard</span>::{<span class="ident">Context</span>, <span class="ident">Device</span>, <span class="ident">Event</span>};
<span class="doccomment">/// A command queue which manages all actions taken on kernels, buffers, and</span>
<span class="doccomment">/// images.</span>
<span class="doccomment">///</span>
<span class="doccomment">///</span>
<span class="comment">//</span>
<span class="comment">// * TODO: Consider implementing a constructor which accepts a DeviceIdCore and</span>
<span class="comment">// creates a context and queue from it.</span>
<span class="comment">//</span>
<span class="comment">//</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Debug</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Queue</span> {
<span class="ident">obj_core</span>: <span class="ident">CommandQueueCore</span>,
<span class="ident">device_version</span>: <span class="ident">OpenclVersion</span>,
}
<span class="kw">impl</span> <span class="ident">Queue</span> {
<span class="doccomment">/// Returns a new Queue on the device specified by `device`.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">context</span>: <span class="kw-2">&</span><span class="ident">Context</span>, <span class="ident">device</span>: <span class="ident">Device</span>, <span class="ident">properties</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">CommandQueueProperties</span><span class="op">></span>)
<span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span><span class="ident">Queue</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">obj_core</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">core</span>::<span class="ident">create_command_queue</span>(<span class="ident">context</span>, <span class="kw-2">&</span><span class="ident">device</span>, <span class="ident">properties</span>));
<span class="kw">let</span> <span class="ident">device_version</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">device</span>.<span class="ident">version</span>());
<span class="prelude-val">Ok</span>(<span class="ident">Queue</span> {
<span class="ident">obj_core</span>: <span class="ident">obj_core</span>,
<span class="ident">device_version</span>: <span class="ident">device_version</span>,
})
}
<span class="doccomment">/// Issues all previously queued OpenCL commands to the device.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">flush</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span>()<span class="op">></span> {
<span class="ident">core</span>::<span class="ident">flush</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">obj_core</span>)
}
<span class="doccomment">/// Blocks until all commands in this queue have completed before returning.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">finish</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span>()<span class="op">></span> {
<span class="ident">core</span>::<span class="ident">finish</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">obj_core</span>)
}
<span class="doccomment">/// Enqueues a marker command which waits for either a list of events to</span>
<span class="doccomment">/// complete, or all previously enqueued commands to complete.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">enqueue_marker</span><span class="op"><</span><span class="ident">Ewl</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">ewait</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Ewl</span><span class="op">></span>) <span class="op">-></span> <span class="ident">OclResult</span><span class="op"><</span><span class="ident">Event</span><span class="op">></span>
<span class="kw">where</span> <span class="ident">Ewl</span>: <span class="ident">ClWaitListPtr</span>
{
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">marker_event</span> <span class="op">=</span> <span class="ident">Event</span>::<span class="ident">empty</span>();
<span class="ident">core</span>::<span class="ident">enqueue_marker_with_wait_list</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">obj_core</span>, <span class="ident">ewait</span>, <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">marker_event</span>),
<span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">device_version</span>)).<span class="ident">map</span>(<span class="op">|</span>_<span class="op">|</span> <span class="ident">marker_event</span>)
}
<span class="doccomment">/// Returns a reference to the core pointer wrapper, usable by functions in</span>
<span class="doccomment">/// the `core` module.</span>
<span class="attribute">#[<span class="ident">deprecated</span>(<span class="ident">since</span><span class="op">=</span><span class="string">"0.13.0"</span>, <span class="ident">note</span><span class="op">=</span><span class="string">"Use `::core` instead."</span>)]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">core_as_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">CommandQueueCore</span> {
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">obj_core</span>
}
<span class="doccomment">/// Returns a reference to the core pointer wrapper, usable by functions in</span>
<span class="doccomment">/// the `core` module.</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">core</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">CommandQueueCore</span> {
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">obj_core</span>
}
<span class="doccomment">/// Returns a copy of the Context associated with this queue.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">context</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Context</span> {
<span class="self">self</span>.<span class="ident">obj_core</span>.<span class="ident">context</span>().<span class="ident">map</span>(<span class="ident">Context</span>::<span class="ident">from</span>).<span class="ident">unwrap</span>()
}
<span class="doccomment">/// Returns the `OpenCL` device associated with this queue.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">device</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Device</span> {
<span class="self">self</span>.<span class="ident">obj_core</span>.<span class="ident">device</span>().<span class="ident">map</span>(<span class="ident">Device</span>::<span class="ident">from</span>).<span class="ident">unwrap</span>()
}
<span class="doccomment">/// Returns the cached device version.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">device_version</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">OpenclVersion</span> {
<span class="self">self</span>.<span class="ident">device_version</span>
}
<span class="doccomment">/// Returns info about this queue.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">info</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">info_kind</span>: <span class="ident">CommandQueueInfo</span>) <span class="op">-></span> <span class="ident">CommandQueueInfoResult</span> {
<span class="ident">core</span>::<span class="ident">get_command_queue_info</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">obj_core</span>, <span class="ident">info_kind</span>)
}
<span class="kw">fn</span> <span class="ident">fmt_info</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">std</span>::<span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">std</span>::<span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="ident">f</span>.<span class="ident">debug_struct</span>(<span class="string">"Queue"</span>)
.<span class="ident">field</span>(<span class="string">"Context"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">info</span>(<span class="ident">CommandQueueInfo</span>::<span class="ident">Context</span>))
.<span class="ident">field</span>(<span class="string">"Device"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">info</span>(<span class="ident">CommandQueueInfo</span>::<span class="ident">Device</span>))
.<span class="ident">field</span>(<span class="string">"ReferenceCount"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">info</span>(<span class="ident">CommandQueueInfo</span>::<span class="ident">ReferenceCount</span>))
.<span class="ident">field</span>(<span class="string">"Properties"</span>, <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">info</span>(<span class="ident">CommandQueueInfo</span>::<span class="ident">Properties</span>))
.<span class="ident">finish</span>()
}
}
<span class="kw">impl</span> <span class="ident">std</span>::<span class="ident">fmt</span>::<span class="ident">Display</span> <span class="kw">for</span> <span class="ident">Queue</span> {
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">std</span>::<span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">std</span>::<span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="self">self</span>.<span class="ident">fmt_info</span>(<span class="ident">f</span>)
}
}
<span class="kw">impl</span> <span class="ident">AsRef</span><span class="op"><</span><span class="ident">Queue</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Queue</span> {
<span class="kw">fn</span> <span class="ident">as_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">Queue</span> {
<span class="self">self</span>
}
}
<span class="kw">impl</span> <span class="ident">AsRef</span><span class="op"><</span><span class="ident">CommandQueueCore</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Queue</span> {
<span class="kw">fn</span> <span class="ident">as_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">CommandQueueCore</span> {
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">obj_core</span>
}
}
<span class="kw">impl</span> <span class="ident">Deref</span> <span class="kw">for</span> <span class="ident">Queue</span> {
<span class="kw">type</span> <span class="ident">Target</span> <span class="op">=</span> <span class="ident">CommandQueueCore</span>;
<span class="kw">fn</span> <span class="ident">deref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">CommandQueueCore</span> {
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">obj_core</span>
}
}
<span class="kw">impl</span> <span class="ident">DerefMut</span> <span class="kw">for</span> <span class="ident">Queue</span> {
<span class="kw">fn</span> <span class="ident">deref_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">CommandQueueCore</span> {
<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">obj_core</span>
}
}
<span class="kw">unsafe</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">ClContextPtr</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">Queue</span> {
<span class="kw">fn</span> <span class="ident">as_ptr</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> ::<span class="ident">ffi</span>::<span class="ident">cl_context</span> {
<span class="self">self</span>.<span class="ident">context_ptr</span>().<span class="ident">expect</span>(<span class="string">"<&Queue as ClContextPtr>::as_ptr: \
Unable to obtain a context pointer."</span>)
}
}</pre>
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