mkdocs/docs/api/xml/task__group_8h.xml

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    <innerclass refid="classiceberg_1_1TaskGroup" prot="public">iceberg::TaskGroup</innerclass>
    <innerclass refid="structiceberg_1_1TaskGroup_1_1Empty" prot="private">iceberg::TaskGroup::Empty</innerclass>
    <innernamespace refid="namespaceiceberg">iceberg</innernamespace>
    <innernamespace refid="namespaceiceberg_1_1internal">iceberg::internal</innernamespace>
    <briefdescription>
<para>Provide grouped task execution utilities. </para>
    </briefdescription>
    <detaileddescription>
    </detaileddescription>
    <programlisting>
<codeline lineno="1"><highlight class="comment">/*</highlight></codeline>
<codeline lineno="2"><highlight class="comment"><sp/>*<sp/>Licensed<sp/>to<sp/>the<sp/>Apache<sp/>Software<sp/>Foundation<sp/>(ASF)<sp/>under<sp/>one</highlight></codeline>
<codeline lineno="3"><highlight class="comment"><sp/>*<sp/>or<sp/>more<sp/>contributor<sp/>license<sp/>agreements.<sp/><sp/>See<sp/>the<sp/>NOTICE<sp/>file</highlight></codeline>
<codeline lineno="4"><highlight class="comment"><sp/>*<sp/>distributed<sp/>with<sp/>this<sp/>work<sp/>for<sp/>additional<sp/>information</highlight></codeline>
<codeline lineno="5"><highlight class="comment"><sp/>*<sp/>regarding<sp/>copyright<sp/>ownership.<sp/><sp/>The<sp/>ASF<sp/>licenses<sp/>this<sp/>file</highlight></codeline>
<codeline lineno="6"><highlight class="comment"><sp/>*<sp/>to<sp/>you<sp/>under<sp/>the<sp/>Apache<sp/>License,<sp/>Version<sp/>2.0<sp/>(the</highlight></codeline>
<codeline lineno="7"><highlight class="comment"><sp/>*<sp/>&quot;License&quot;);<sp/>you<sp/>may<sp/>not<sp/>use<sp/>this<sp/>file<sp/>except<sp/>in<sp/>compliance</highlight></codeline>
<codeline lineno="8"><highlight class="comment"><sp/>*<sp/>with<sp/>the<sp/>License.<sp/><sp/>You<sp/>may<sp/>obtain<sp/>a<sp/>copy<sp/>of<sp/>the<sp/>License<sp/>at</highlight></codeline>
<codeline lineno="9"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="10"><highlight class="comment"><sp/>*<sp/><sp/><sp/>http://www.apache.org/licenses/LICENSE-2.0</highlight></codeline>
<codeline lineno="11"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="12"><highlight class="comment"><sp/>*<sp/>Unless<sp/>required<sp/>by<sp/>applicable<sp/>law<sp/>or<sp/>agreed<sp/>to<sp/>in<sp/>writing,</highlight></codeline>
<codeline lineno="13"><highlight class="comment"><sp/>*<sp/>software<sp/>distributed<sp/>under<sp/>the<sp/>License<sp/>is<sp/>distributed<sp/>on<sp/>an</highlight></codeline>
<codeline lineno="14"><highlight class="comment"><sp/>*<sp/>&quot;AS<sp/>IS&quot;<sp/>BASIS,<sp/>WITHOUT<sp/>WARRANTIES<sp/>OR<sp/>CONDITIONS<sp/>OF<sp/>ANY</highlight></codeline>
<codeline lineno="15"><highlight class="comment"><sp/>*<sp/>KIND,<sp/>either<sp/>express<sp/>or<sp/>implied.<sp/><sp/>See<sp/>the<sp/>License<sp/>for<sp/>the</highlight></codeline>
<codeline lineno="16"><highlight class="comment"><sp/>*<sp/>specific<sp/>language<sp/>governing<sp/>permissions<sp/>and<sp/>limitations</highlight></codeline>
<codeline lineno="17"><highlight class="comment"><sp/>*<sp/>under<sp/>the<sp/>License.</highlight></codeline>
<codeline lineno="18"><highlight class="comment"><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="19"><highlight class="normal"></highlight></codeline>
<codeline lineno="20"><highlight class="normal"></highlight><highlight class="preprocessor">#pragma<sp/>once</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="21"><highlight class="normal"></highlight></codeline>
<codeline lineno="24"><highlight class="normal"></highlight></codeline>
<codeline lineno="25"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;concepts&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="26"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;optional&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="27"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;type_traits&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="28"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;utility&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="29"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;vector&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="30"><highlight class="normal"></highlight></codeline>
<codeline lineno="31"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="iceberg__export_8h" kindref="compound">iceberg/iceberg_export.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="32"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="result_8h" kindref="compound">iceberg/result.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="33"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="executor_8h" kindref="compound">iceberg/util/executor.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="34"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="functional_8h" kindref="compound">iceberg/util/functional.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="35"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="retry__util_8h" kindref="compound">iceberg/util/retry_util.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="36"><highlight class="normal"></highlight></codeline>
<codeline lineno="37"><highlight class="normal"></highlight><highlight class="keyword">namespace<sp/></highlight><highlight class="normal"><ref refid="namespaceiceberg" kindref="compound">iceberg</ref><sp/>{</highlight></codeline>
<codeline lineno="38"><highlight class="normal"></highlight></codeline>
<codeline lineno="39"><highlight class="normal"></highlight><highlight class="keyword">namespace<sp/></highlight><highlight class="normal">internal<sp/>{</highlight></codeline>
<codeline lineno="40"><highlight class="normal"></highlight></codeline>
<codeline lineno="41"><highlight class="normal"></highlight><highlight class="keyword">template</highlight><highlight class="normal"><sp/>&lt;</highlight><highlight class="keyword">typename</highlight><highlight class="normal"><sp/>F&gt;</highlight></codeline>
<codeline lineno="42" refid="concepticeberg_1_1internal_1_1OnceStatusTask" refkind="compound"><highlight class="normal"></highlight><highlight class="keyword">concept<sp/></highlight><highlight class="normal"><ref refid="concepticeberg_1_1internal_1_1OnceStatusTask" kindref="compound">OnceStatusTask</ref><sp/>=<sp/><ref refid="concepticeberg_1_1internal_1_1RvalueInvocable" kindref="compound">RvalueInvocable&lt;Status, F&gt;</ref>;</highlight></codeline>
<codeline lineno="43"><highlight class="normal"></highlight></codeline>
<codeline lineno="44"><highlight class="normal"></highlight><highlight class="keyword">template</highlight><highlight class="normal"><sp/>&lt;</highlight><highlight class="keyword">typename</highlight><highlight class="normal"><sp/>T&gt;</highlight></codeline>
<codeline lineno="45" refid="concepticeberg_1_1internal_1_1RepeatableStatusTask" refkind="compound"><highlight class="normal"></highlight><highlight class="keyword">concept<sp/></highlight><highlight class="normal"><ref refid="concepticeberg_1_1internal_1_1RepeatableStatusTask" kindref="compound">RepeatableStatusTask</ref><sp/>=</highlight></codeline>
<codeline lineno="46"><highlight class="normal"><sp/><sp/><sp/><sp/>std::is_invocable_r_v&lt;Status,<sp/>const<sp/>T&amp;&gt;<sp/>||</highlight></codeline>
<codeline lineno="47"><highlight class="normal"><sp/><sp/><sp/><sp/>(std::copy_constructible&lt;T&gt;<sp/>&amp;&amp;<sp/>std::is_invocable_r_v&lt;Status,<sp/>T&amp;&gt;);</highlight></codeline>
<codeline lineno="48"><highlight class="normal"></highlight></codeline>
<codeline lineno="49"><highlight class="normal"></highlight><highlight class="keyword">template</highlight><highlight class="normal"><sp/>&lt;</highlight><highlight class="keyword">typename</highlight><highlight class="normal"><sp/>F&gt;</highlight></codeline>
<codeline lineno="50" refid="concepticeberg_1_1internal_1_1RetryableStatusTask" refkind="compound"><highlight class="normal"></highlight><highlight class="keyword">concept<sp/></highlight><highlight class="normal"><ref refid="concepticeberg_1_1internal_1_1RetryableStatusTask" kindref="compound">RetryableStatusTask</ref><sp/>=<sp/>std::constructible_from&lt;std::remove_cvref_t&lt;F&gt;,<sp/>F&gt;<sp/>&amp;&amp;</highlight></codeline>
<codeline lineno="51"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><ref refid="concepticeberg_1_1internal_1_1RepeatableStatusTask" kindref="compound">RepeatableStatusTask&lt;std::remove_cvref_t&lt;F&gt;</ref>&gt;;</highlight></codeline>
<codeline lineno="52"><highlight class="normal"></highlight></codeline>
<codeline lineno="53"><highlight class="normal">ICEBERG_EXPORT<sp/>Status<sp/>RunTasksSingleThreaded(std::vector&lt;FnOnce&lt;Status()&gt;&gt;<sp/>tasks);</highlight></codeline>
<codeline lineno="54"><highlight class="normal"></highlight></codeline>
<codeline lineno="55"><highlight class="normal">ICEBERG_EXPORT<sp/>Status<sp/>RunTasksParallel(Executor&amp;<sp/>executor,</highlight></codeline>
<codeline lineno="56"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>std::vector&lt;FnOnce&lt;Status()&gt;&gt;<sp/>tasks);</highlight></codeline>
<codeline lineno="57"><highlight class="normal"></highlight></codeline>
<codeline lineno="58"><highlight class="normal">}<sp/><sp/></highlight><highlight class="comment">//<sp/>namespace<sp/>internal</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="59"><highlight class="normal"></highlight></codeline>
<codeline lineno="60"><highlight class="normal"></highlight><highlight class="keyword">template</highlight><highlight class="normal"><sp/>&lt;retry::Policy<sp/>RetryPolicy<sp/>=<sp/>retry::NoRetry&gt;</highlight></codeline>
<codeline lineno="61" refid="classiceberg_1_1TaskGroup" refkind="compound"><highlight class="normal"></highlight><highlight class="keyword">class<sp/></highlight><highlight class="normal">ICEBERG_TEMPLATE_CLASS_EXPORT<sp/><ref refid="classiceberg_1_1TaskGroup" kindref="compound">TaskGroup</ref><sp/>{</highlight></codeline>
<codeline lineno="62"><highlight class="normal"><sp/></highlight><highlight class="keyword">private</highlight><highlight class="normal">:</highlight></codeline>
<codeline lineno="63"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">static</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">constexpr</highlight><highlight class="normal"><sp/></highlight><highlight class="keywordtype">bool</highlight><highlight class="normal"><sp/>kRetryEnabled<sp/>=<sp/>!std::same_as&lt;RetryPolicy,<sp/>retry::NoRetry&gt;;</highlight></codeline>
<codeline lineno="64"><highlight class="normal"></highlight></codeline>
<codeline lineno="65"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">struct<sp/></highlight><highlight class="normal">Empty<sp/>{};</highlight></codeline>
<codeline lineno="66"><highlight class="normal"></highlight></codeline>
<codeline lineno="67"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">using<sp/></highlight><highlight class="normal">RetryConfigStorage<sp/>=<sp/>std::conditional_t&lt;kRetryEnabled,<sp/>RetryConfig,<sp/>Empty&gt;;</highlight></codeline>
<codeline lineno="68"><highlight class="normal"></highlight></codeline>
<codeline lineno="69"><highlight class="normal"><sp/></highlight><highlight class="keyword">public</highlight><highlight class="normal">:</highlight></codeline>
<codeline lineno="70"><highlight class="normal"><sp/><sp/><ref refid="classiceberg_1_1TaskGroup" kindref="compound">TaskGroup</ref>()<sp/>=<sp/></highlight><highlight class="keywordflow">default</highlight><highlight class="normal">;</highlight></codeline>
<codeline lineno="71"><highlight class="normal"></highlight></codeline>
<codeline lineno="72"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">explicit</highlight><highlight class="normal"><sp/><ref refid="classiceberg_1_1TaskGroup" kindref="compound">TaskGroup</ref>(<ref refid="structiceberg_1_1RetryConfig" kindref="compound">RetryConfig</ref><sp/>retry_config)</highlight></codeline>
<codeline lineno="73"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keyword">requires</highlight><highlight class="normal">(kRetryEnabled)</highlight></codeline>
<codeline lineno="74"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>:<sp/>retry_config_(std::move(retry_config))<sp/>{}</highlight></codeline>
<codeline lineno="75"><highlight class="normal"></highlight></codeline>
<codeline lineno="76"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">auto</highlight><highlight class="normal">&amp;&amp;<sp/>SetExecutor(</highlight><highlight class="keyword">this</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">auto</highlight><highlight class="normal">&amp;&amp;<sp/>self,<sp/>OptionalExecutor<sp/>executor)<sp/>{</highlight></codeline>
<codeline lineno="77"><highlight class="normal"><sp/><sp/><sp/><sp/>self.executor_<sp/>=<sp/>std::move(executor);</highlight></codeline>
<codeline lineno="78"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>std::forward&lt;decltype(self)&gt;(self);</highlight></codeline>
<codeline lineno="79"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="80"><highlight class="normal"></highlight></codeline>
<codeline lineno="81"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">template</highlight><highlight class="normal"><sp/>&lt;</highlight><highlight class="keyword">typename</highlight><highlight class="normal"><sp/>F&gt;</highlight></codeline>
<codeline lineno="82"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keyword">requires</highlight><highlight class="normal">((!kRetryEnabled<sp/>&amp;&amp;<sp/><ref refid="concepticeberg_1_1internal_1_1OnceStatusTask" kindref="compound">internal::OnceStatusTask&lt;F&gt;</ref>)<sp/>||</highlight></codeline>
<codeline lineno="83"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>(kRetryEnabled<sp/>&amp;&amp;<sp/><ref refid="concepticeberg_1_1internal_1_1RetryableStatusTask" kindref="compound">internal::RetryableStatusTask&lt;F&gt;</ref>))</highlight></codeline>
<codeline lineno="84"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">auto</highlight><highlight class="normal">&amp;&amp;<sp/>Submit(</highlight><highlight class="keyword">this</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">auto</highlight><highlight class="normal">&amp;&amp;<sp/>self,<sp/>F&amp;&amp;<sp/>task)<sp/>{</highlight></codeline>
<codeline lineno="85"><highlight class="normal"><sp/><sp/><sp/><sp/>self.tasks_.emplace_back([&amp;]<sp/>{</highlight></codeline>
<codeline lineno="86"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">constexpr</highlight><highlight class="normal"><sp/>(!kRetryEnabled)<sp/>{</highlight></codeline>
<codeline lineno="87"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>std::forward&lt;F&gt;(task);</highlight></codeline>
<codeline lineno="88"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>}<sp/></highlight><highlight class="keywordflow">else</highlight><highlight class="normal"><sp/>{</highlight></codeline>
<codeline lineno="89"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>[retry_config<sp/>=<sp/>self.retry_config_,</highlight></codeline>
<codeline lineno="90"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>task<sp/>=<sp/>std::forward&lt;F&gt;(task)]()<sp/></highlight><highlight class="keyword">mutable</highlight><highlight class="normal"><sp/>-&gt;<sp/>Status<sp/>{</highlight></codeline>
<codeline lineno="91"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/><ref refid="classiceberg_1_1RetryRunner" kindref="compound">RetryRunner&lt;RetryPolicy&gt;</ref>(retry_config).<ref refid="classiceberg_1_1RetryRunner_1a65a494c3e49ab9ed72bec7b12fb33e0c" kindref="member">Run</ref>(task);</highlight></codeline>
<codeline lineno="92"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/><sp/><sp/>};</highlight></codeline>
<codeline lineno="93"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="94"><highlight class="normal"><sp/><sp/><sp/><sp/>}());</highlight></codeline>
<codeline lineno="95"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>std::forward&lt;decltype(self)&gt;(self);</highlight></codeline>
<codeline lineno="96"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="97"><highlight class="normal"></highlight></codeline>
<codeline lineno="98"><highlight class="normal"><sp/><sp/>Status<sp/>Run()<sp/>&amp;&amp;<sp/>{</highlight></codeline>
<codeline lineno="99"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(!executor_.has_value())<sp/>{</highlight></codeline>
<codeline lineno="100"><highlight class="normal"><sp/><sp/><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>internal::RunTasksSingleThreaded(std::move(tasks_));</highlight></codeline>
<codeline lineno="101"><highlight class="normal"><sp/><sp/><sp/><sp/>}</highlight></codeline>
<codeline lineno="102"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>internal::RunTasksParallel(executor_-&gt;get(),<sp/>std::move(tasks_));</highlight></codeline>
<codeline lineno="103"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="104"><highlight class="normal"></highlight></codeline>
<codeline lineno="105"><highlight class="normal"><sp/></highlight><highlight class="keyword">private</highlight><highlight class="normal">:</highlight></codeline>
<codeline lineno="106"><highlight class="normal"><sp/><sp/>std::vector&lt;<ref refid="classiceberg_1_1FnOnce" kindref="compound">FnOnce</ref>&lt;Status()&gt;&gt;<sp/>tasks_;</highlight></codeline>
<codeline lineno="107"><highlight class="normal"><sp/><sp/>OptionalExecutor<sp/>executor_;</highlight></codeline>
<codeline lineno="108"><highlight class="normal"><sp/><sp/>[[no_unique_address]]<sp/>RetryConfigStorage<sp/>retry_config_;</highlight></codeline>
<codeline lineno="109"><highlight class="normal">};</highlight></codeline>
<codeline lineno="110"><highlight class="normal"></highlight></codeline>
<codeline lineno="111"><highlight class="normal">}<sp/><sp/></highlight><highlight class="comment">//<sp/>namespace<sp/>iceberg</highlight><highlight class="normal"></highlight></codeline>
    </programlisting>
    <location file="iceberg/util/task_group.h"/>
  </compounddef>
</doxygen>