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<h1>task.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright 2005-2010 Intel Corporation. All Rights Reserved.</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment"> The source code contained or described herein and all documents related</span>
<a name="l00005"></a>00005 <span class="comment"> to the source code ("Material") are owned by Intel Corporation or its</span>
<a name="l00006"></a>00006 <span class="comment"> suppliers or licensors. Title to the Material remains with Intel</span>
<a name="l00007"></a>00007 <span class="comment"> Corporation or its suppliers and licensors. The Material is protected</span>
<a name="l00008"></a>00008 <span class="comment"> by worldwide copyright laws and treaty provisions. No part of the</span>
<a name="l00009"></a>00009 <span class="comment"> Material may be used, copied, reproduced, modified, published, uploaded,</span>
<a name="l00010"></a>00010 <span class="comment"> posted, transmitted, distributed, or disclosed in any way without</span>
<a name="l00011"></a>00011 <span class="comment"> Intel's prior express written permission.</span>
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment"> No license under any patent, copyright, trade secret or other</span>
<a name="l00014"></a>00014 <span class="comment"> intellectual property right is granted to or conferred upon you by</span>
<a name="l00015"></a>00015 <span class="comment"> disclosure or delivery of the Materials, either expressly, by</span>
<a name="l00016"></a>00016 <span class="comment"> implication, inducement, estoppel or otherwise. Any license under such</span>
<a name="l00017"></a>00017 <span class="comment"> intellectual property rights must be express and approved by Intel in</span>
<a name="l00018"></a>00018 <span class="comment"> writing.</span>
<a name="l00019"></a>00019 <span class="comment">*/</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#ifndef __TBB_task_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define __TBB_task_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "tbb_stddef.h"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "tbb_machine.h"</span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="keyword">typedef</span> <span class="keyword">struct </span>___itt_caller *__itt_caller;
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="keyword">namespace </span>tbb {
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">class </span>task;
<a name="l00032"></a>00032 <span class="keyword">class </span>task_list;
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="keyword">class </span>task_group_context;
<a name="l00036"></a>00036 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="comment">// MSVC does not allow taking the address of a member that was defined </span>
<a name="l00039"></a>00039 <span class="comment">// privately in task_base and made public in class task via a using declaration.</span>
<a name="l00040"></a>00040 <span class="preprocessor">#if _MSC_VER || (__GNUC__==3 &amp;&amp; __GNUC_MINOR__&lt;3)</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#define __TBB_TASK_BASE_ACCESS public</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#define __TBB_TASK_BASE_ACCESS private</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span>
<a name="l00046"></a>00046 <span class="keyword">namespace </span>internal {
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">class </span>allocate_additional_child_of_proxy: no_assign {
<a name="l00050"></a>00050 task* <span class="keyword">self</span>;
<a name="l00051"></a>00051 task&amp; parent;
<a name="l00052"></a>00052 <span class="keyword">public</span>:
<a name="l00053"></a>00053 <span class="keyword">explicit</span> allocate_additional_child_of_proxy( task&amp; parent_ ) : self(NULL), parent(parent_) {}
<a name="l00054"></a>00054 task&amp; __TBB_EXPORTED_METHOD allocate( size_t size ) <span class="keyword">const</span>;
<a name="l00055"></a>00055 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD free( task&amp; ) <span class="keyword">const</span>;
<a name="l00056"></a>00056 };
<a name="l00057"></a>00057
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keyword">namespace </span>interface5 {
<a name="l00061"></a>00061 <span class="keyword">namespace </span>internal {
<a name="l00063"></a>00063
<a name="l00068"></a><a class="code" href="a00200.html">00068</a> <span class="keyword">class </span><a class="code" href="a00200.html">task_base</a>: tbb::internal::no_copy {
<a name="l00069"></a>00069 __TBB_TASK_BASE_ACCESS:
<a name="l00070"></a>00070 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00199.html">tbb::task</a>;
<a name="l00071"></a>00071
<a name="l00073"></a>00073 <span class="keyword">static</span> <span class="keywordtype">void</span> spawn( <a class="code" href="a00199.html">task</a>&amp; t );
<a name="l00074"></a>00074
<a name="l00076"></a>00076 <span class="keyword">static</span> <span class="keywordtype">void</span> spawn( <a class="code" href="a00202.html">task_list</a>&amp; list );
<a name="l00077"></a>00077
<a name="l00079"></a>00079
<a name="l00081"></a>00081 <span class="keyword">static</span> tbb::internal::allocate_additional_child_of_proxy allocate_additional_child_of( <a class="code" href="a00199.html">task</a>&amp; t ) {
<a name="l00082"></a>00082 <span class="keywordflow">return</span> tbb::internal::allocate_additional_child_of_proxy(t);
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00086"></a>00086
<a name="l00090"></a>00090 <span class="keyword">static</span> <span class="keywordtype">void</span> __TBB_EXPORTED_FUNC <a class="code" href="a00199.html#dfaacf92685e5f86393bf657b2853bf8">destroy</a>( <a class="code" href="a00199.html">task</a>&amp; victim );
<a name="l00091"></a>00091 };
<a name="l00092"></a>00092 } <span class="comment">// internal</span>
<a name="l00093"></a>00093 } <span class="comment">// interface5</span>
<a name="l00094"></a>00094
<a name="l00096"></a>00096 <span class="keyword">namespace </span>internal {
<a name="l00097"></a>00097
<a name="l00098"></a>00098 <span class="keyword">class </span>scheduler: no_copy {
<a name="l00099"></a>00099 <span class="keyword">public</span>:
<a name="l00101"></a>00101 <span class="keyword">virtual</span> <span class="keywordtype">void</span> spawn( <a class="code" href="a00199.html">task</a>&amp; first, <a class="code" href="a00199.html">task</a>*&amp; next ) = 0;
<a name="l00102"></a>00102
<a name="l00104"></a>00104 <span class="keyword">virtual</span> <span class="keywordtype">void</span> wait_for_all( <a class="code" href="a00199.html">task</a>&amp; parent, <a class="code" href="a00199.html">task</a>* child ) = 0;
<a name="l00105"></a>00105
<a name="l00107"></a>00107 <span class="keyword">virtual</span> <span class="keywordtype">void</span> spawn_root_and_wait( <a class="code" href="a00199.html">task</a>&amp; first, <a class="code" href="a00199.html">task</a>*&amp; next ) = 0;
<a name="l00108"></a>00108
<a name="l00110"></a>00110 <span class="comment">// Have to have it just to shut up overzealous compilation warnings</span>
<a name="l00111"></a>00111 <span class="keyword">virtual</span> ~scheduler() = 0;
<a name="l00112"></a>00112 <span class="preprocessor">#if __TBB_ARENA_PER_MASTER</span>
<a name="l00113"></a>00113 <span class="preprocessor"></span>
<a name="l00115"></a>00115 <span class="keyword">virtual</span> <span class="keywordtype">void</span> enqueue( <a class="code" href="a00199.html">task</a>&amp; t, <span class="keywordtype">void</span>* reserved ) = 0;
<a name="l00116"></a>00116 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_ARENA_PER_MASTER */</span>
<a name="l00117"></a>00117 };
<a name="l00118"></a>00118
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="keyword">typedef</span> intptr_t reference_count;
<a name="l00122"></a>00122
<a name="l00124"></a>00124 <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> affinity_id;
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00127"></a>00127 <span class="preprocessor"></span> <span class="keyword">struct </span>context_list_node_t {
<a name="l00128"></a>00128 context_list_node_t *my_prev,
<a name="l00129"></a>00129 *my_next;
<a name="l00130"></a>00130 };
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keyword">class </span>allocate_root_with_context_proxy: no_assign {
<a name="l00133"></a>00133 task_group_context&amp; my_context;
<a name="l00134"></a>00134 <span class="keyword">public</span>:
<a name="l00135"></a>00135 allocate_root_with_context_proxy ( task_group_context&amp; ctx ) : my_context(ctx) {}
<a name="l00136"></a>00136 task&amp; __TBB_EXPORTED_METHOD allocate( size_t size ) <span class="keyword">const</span>;
<a name="l00137"></a>00137 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD free( task&amp; ) <span class="keyword">const</span>;
<a name="l00138"></a>00138 };
<a name="l00139"></a>00139 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="keyword">class </span>allocate_root_proxy: no_assign {
<a name="l00142"></a>00142 <span class="keyword">public</span>:
<a name="l00143"></a>00143 <span class="keyword">static</span> task&amp; __TBB_EXPORTED_FUNC allocate( size_t size );
<a name="l00144"></a>00144 <span class="keyword">static</span> <span class="keywordtype">void</span> __TBB_EXPORTED_FUNC free( task&amp; );
<a name="l00145"></a>00145 };
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="keyword">class </span>allocate_continuation_proxy: no_assign {
<a name="l00148"></a>00148 <span class="keyword">public</span>:
<a name="l00149"></a>00149 task&amp; __TBB_EXPORTED_METHOD allocate( size_t size ) <span class="keyword">const</span>;
<a name="l00150"></a>00150 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD free( task&amp; ) <span class="keyword">const</span>;
<a name="l00151"></a>00151 };
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="keyword">class </span>allocate_child_proxy: no_assign {
<a name="l00154"></a>00154 <span class="keyword">public</span>:
<a name="l00155"></a>00155 task&amp; __TBB_EXPORTED_METHOD allocate( size_t size ) <span class="keyword">const</span>;
<a name="l00156"></a>00156 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD free( task&amp; ) <span class="keyword">const</span>;
<a name="l00157"></a>00157 };
<a name="l00158"></a>00158
<a name="l00160"></a>00160
<a name="l00165"></a>00165 <span class="keyword">class </span>task_prefix {
<a name="l00166"></a>00166 <span class="keyword">private</span>:
<a name="l00167"></a>00167 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00199.html">tbb::task</a>;
<a name="l00168"></a>00168 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00200.html">tbb::interface5::internal::task_base</a>;
<a name="l00169"></a>00169 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00202.html">tbb::task_list</a>;
<a name="l00170"></a>00170 <span class="keyword">friend</span> <span class="keyword">class </span>internal::scheduler;
<a name="l00171"></a>00171 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_root_proxy;
<a name="l00172"></a>00172 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_child_proxy;
<a name="l00173"></a>00173 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_continuation_proxy;
<a name="l00174"></a>00174 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_additional_child_of_proxy;
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00178"></a>00178 <span class="preprocessor"></span>
<a name="l00181"></a>00181 <span class="preprocessor"> task_group_context *context;</span>
<a name="l00182"></a>00182 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00183"></a>00183
<a name="l00185"></a>00185
<a name="l00190"></a>00190 scheduler* origin;
<a name="l00191"></a>00191
<a name="l00193"></a>00193 scheduler* owner;
<a name="l00194"></a>00194
<a name="l00196"></a>00196
<a name="l00199"></a>00199 <a class="code" href="a00199.html">tbb::task</a>* parent;
<a name="l00200"></a>00200
<a name="l00202"></a>00202
<a name="l00206"></a>00206 reference_count ref_count;
<a name="l00207"></a>00207
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordtype">int</span> depth;
<a name="l00211"></a>00211
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> state;
<a name="l00215"></a>00215
<a name="l00217"></a>00217
<a name="l00222"></a>00222 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> extra_state;
<a name="l00223"></a>00223
<a name="l00224"></a>00224 affinity_id affinity;
<a name="l00225"></a>00225
<a name="l00227"></a>00227 <a class="code" href="a00199.html">tbb::task</a>* next;
<a name="l00228"></a>00228
<a name="l00230"></a>00230 <a class="code" href="a00199.html">tbb::task</a>&amp; task() {<span class="keywordflow">return</span> *reinterpret_cast&lt;tbb::task*&gt;(<span class="keyword">this</span>+1);}
<a name="l00231"></a>00231 };
<a name="l00232"></a>00232
<a name="l00233"></a>00233 } <span class="comment">// namespace internal</span>
<a name="l00235"></a>00235 <span class="comment"></span>
<a name="l00236"></a>00236 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00237"></a>00237 <span class="preprocessor"></span>
<a name="l00238"></a>00238 <span class="preprocessor">#if TBB_USE_CAPTURED_EXCEPTION</span>
<a name="l00239"></a>00239 <span class="preprocessor"></span> <span class="keyword">class </span>tbb_exception;
<a name="l00240"></a>00240 <span class="preprocessor">#else</span>
<a name="l00241"></a>00241 <span class="preprocessor"></span> <span class="keyword">namespace </span>internal {
<a name="l00242"></a>00242 <span class="keyword">class </span>tbb_exception_ptr;
<a name="l00243"></a>00243 }
<a name="l00244"></a>00244 <span class="preprocessor">#endif </span><span class="comment">/* !TBB_USE_CAPTURED_EXCEPTION */</span>
<a name="l00245"></a>00245
<a name="l00247"></a>00247
<a name="l00267"></a><a class="code" href="a00201.html">00267</a> <span class="keyword">class </span><a class="code" href="a00201.html">task_group_context</a> : internal::no_copy {
<a name="l00268"></a>00268 <span class="keyword">private</span>:
<a name="l00269"></a>00269 <span class="preprocessor">#if TBB_USE_CAPTURED_EXCEPTION</span>
<a name="l00270"></a>00270 <span class="preprocessor"></span> <span class="keyword">typedef</span> <a class="code" href="a00206.html">tbb_exception</a> <a class="code" href="a00206.html">exception_container_type</a>;
<a name="l00271"></a>00271 <span class="preprocessor">#else</span>
<a name="l00272"></a>00272 <span class="preprocessor"></span> <span class="keyword">typedef</span> <a class="code" href="a00207.html">internal::tbb_exception_ptr</a> <a class="code" href="a00206.html">exception_container_type</a>;
<a name="l00273"></a>00273 <span class="preprocessor">#endif</span>
<a name="l00274"></a>00274 <span class="preprocessor"></span>
<a name="l00275"></a>00275 <span class="keyword">enum</span> version_traits_word_layout {
<a name="l00276"></a>00276 traits_offset = 16,
<a name="l00277"></a>00277 version_mask = 0xFFFF,
<a name="l00278"></a>00278 traits_mask = 0xFFFFul &lt;&lt; traits_offset
<a name="l00279"></a>00279 };
<a name="l00280"></a>00280
<a name="l00281"></a>00281 <span class="keyword">public</span>:
<a name="l00282"></a>00282 <span class="keyword">enum</span> kind_type {
<a name="l00283"></a>00283 isolated,
<a name="l00284"></a>00284 bound
<a name="l00285"></a>00285 };
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="keyword">enum</span> traits_type {
<a name="l00288"></a>00288 exact_exception = 0x0001ul &lt;&lt; traits_offset,
<a name="l00289"></a>00289 concurrent_wait = 0x0004ul &lt;&lt; traits_offset,
<a name="l00290"></a>00290 <span class="preprocessor">#if TBB_USE_CAPTURED_EXCEPTION</span>
<a name="l00291"></a>00291 <span class="preprocessor"></span> default_traits = 0
<a name="l00292"></a>00292 <span class="preprocessor">#else</span>
<a name="l00293"></a>00293 <span class="preprocessor"></span> default_traits = exact_exception
<a name="l00294"></a>00294 <span class="preprocessor">#endif </span><span class="comment">/* !TBB_USE_CAPTURED_EXCEPTION */</span>
<a name="l00295"></a>00295 };
<a name="l00296"></a>00296
<a name="l00297"></a>00297 <span class="keyword">private</span>:
<a name="l00298"></a>00298 <span class="keyword">union </span>{
<a name="l00300"></a>00300 kind_type my_kind;
<a name="l00301"></a>00301 uintptr_t _my_kind_aligner;
<a name="l00302"></a>00302 };
<a name="l00303"></a>00303
<a name="l00305"></a>00305 <a class="code" href="a00201.html">task_group_context</a> *my_parent;
<a name="l00306"></a>00306
<a name="l00308"></a>00308
<a name="l00310"></a>00310 internal::context_list_node_t my_node;
<a name="l00311"></a>00311
<a name="l00313"></a>00313 __itt_caller itt_caller;
<a name="l00314"></a>00314
<a name="l00316"></a>00316
<a name="l00319"></a>00319 <span class="keywordtype">char</span> _leading_padding[internal::NFS_MaxLineSize -
<a name="l00320"></a>00320 2 * <span class="keyword">sizeof</span>(uintptr_t)- <span class="keyword">sizeof</span>(<span class="keywordtype">void</span>*) - <span class="keyword">sizeof</span>(internal::context_list_node_t)
<a name="l00321"></a>00321 - <span class="keyword">sizeof</span>(__itt_caller)];
<a name="l00322"></a>00322
<a name="l00324"></a>00324 uintptr_t my_cancellation_requested;
<a name="l00325"></a>00325
<a name="l00327"></a>00327
<a name="l00330"></a>00330 uintptr_t my_version_and_traits;
<a name="l00331"></a>00331
<a name="l00333"></a>00333 <a class="code" href="a00206.html">exception_container_type</a> *my_exception;
<a name="l00334"></a>00334
<a name="l00336"></a>00336
<a name="l00339"></a>00339 <span class="keywordtype">void</span> *my_owner;
<a name="l00340"></a>00340
<a name="l00342"></a>00342
<a name="l00343"></a>00343 <span class="keywordtype">char</span> _trailing_padding[internal::NFS_MaxLineSize - <span class="keyword">sizeof</span>(intptr_t) - 2 * <span class="keyword">sizeof</span>(<span class="keywordtype">void</span>*)];
<a name="l00344"></a>00344
<a name="l00345"></a>00345 <span class="keyword">public</span>:
<a name="l00347"></a>00347
<a name="l00374"></a><a class="code" href="a00201.html#19fee08fb8ac98adccfe69c1aa63c491">00374</a> <a class="code" href="a00201.html#19fee08fb8ac98adccfe69c1aa63c491">task_group_context</a> ( kind_type relation_with_parent = bound,
<a name="l00375"></a>00375 uintptr_t traits = default_traits )
<a name="l00376"></a>00376 : my_kind(relation_with_parent)
<a name="l00377"></a>00377 , my_version_and_traits(1 | traits)
<a name="l00378"></a>00378 {
<a name="l00379"></a>00379 <a class="code" href="a00201.html#49a55352084fd44b8863d182e839e6dc">init</a>();
<a name="l00380"></a>00380 }
<a name="l00381"></a>00381
<a name="l00382"></a>00382 __TBB_EXPORTED_METHOD ~<a class="code" href="a00201.html">task_group_context</a> ();
<a name="l00383"></a>00383
<a name="l00385"></a>00385
<a name="l00392"></a>00392 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD <a class="code" href="a00201.html#6d30d16bf1cd22f86c6afaf29c2b430c">reset</a> ();
<a name="l00393"></a>00393
<a name="l00395"></a>00395
<a name="l00402"></a>00402 <span class="keywordtype">bool</span> __TBB_EXPORTED_METHOD <a class="code" href="a00201.html#8bcdfdf4e6bfb76125b6de15c00b571d">cancel_group_execution</a> ();
<a name="l00403"></a>00403
<a name="l00405"></a>00405 <span class="keywordtype">bool</span> __TBB_EXPORTED_METHOD <a class="code" href="a00201.html#4db72f16210b0a991b2c134d6763a4cc">is_group_execution_cancelled</a> () <span class="keyword">const</span>;
<a name="l00406"></a>00406
<a name="l00408"></a>00408
<a name="l00414"></a>00414 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD <a class="code" href="a00201.html#d97c8a03615594b71b4ef06ff75cf561">register_pending_exception</a> ();
<a name="l00415"></a>00415
<a name="l00416"></a>00416 <span class="keyword">protected</span>:
<a name="l00418"></a>00418
<a name="l00419"></a>00419 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD <a class="code" href="a00201.html#49a55352084fd44b8863d182e839e6dc">init</a> ();
<a name="l00420"></a>00420
<a name="l00421"></a>00421 <span class="keyword">private</span>:
<a name="l00422"></a>00422 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00199.html">task</a>;
<a name="l00423"></a>00423 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_root_with_context_proxy;
<a name="l00424"></a>00424
<a name="l00425"></a>00425 <span class="keyword">static</span> <span class="keyword">const</span> kind_type binding_required = bound;
<a name="l00426"></a>00426 <span class="keyword">static</span> <span class="keyword">const</span> kind_type binding_completed = kind_type(bound+1);
<a name="l00427"></a>00427 <span class="keyword">static</span> <span class="keyword">const</span> kind_type detached = kind_type(binding_completed+1);
<a name="l00428"></a>00428 <span class="keyword">static</span> <span class="keyword">const</span> kind_type dying = kind_type(detached+1);
<a name="l00429"></a>00429
<a name="l00432"></a>00432 <span class="keywordtype">void</span> propagate_cancellation_from_ancestors ();
<a name="l00433"></a>00433
<a name="l00435"></a>00435 <span class="keywordtype">bool</span> is_alive () {
<a name="l00436"></a>00436 <span class="preprocessor">#if TBB_USE_DEBUG</span>
<a name="l00437"></a>00437 <span class="preprocessor"></span> <span class="keywordflow">return</span> my_version_and_traits != 0xDeadBeef;
<a name="l00438"></a>00438 <span class="preprocessor">#else</span>
<a name="l00439"></a>00439 <span class="preprocessor"></span> <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00440"></a>00440 <span class="preprocessor">#endif </span><span class="comment">/* TBB_USE_DEBUG */</span>
<a name="l00441"></a>00441 }
<a name="l00442"></a>00442 }; <span class="comment">// class task_group_context</span>
<a name="l00443"></a>00443
<a name="l00444"></a>00444 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00445"></a>00445
<a name="l00447"></a>00447
<a name="l00448"></a><a class="code" href="a00199.html">00448</a> <span class="keyword">class </span><a class="code" href="a00199.html">task</a>: __TBB_TASK_BASE_ACCESS interface5::internal::task_base {
<a name="l00449"></a>00449
<a name="l00451"></a>00451 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD internal_set_ref_count( <span class="keywordtype">int</span> count );
<a name="l00452"></a>00452
<a name="l00454"></a>00454 internal::reference_count __TBB_EXPORTED_METHOD internal_decrement_ref_count();
<a name="l00455"></a>00455
<a name="l00456"></a>00456 <span class="keyword">protected</span>:
<a name="l00458"></a><a class="code" href="a00199.html#2bce8ec6e44706e70128f5cf91b76e67">00458</a> <a class="code" href="a00199.html#2bce8ec6e44706e70128f5cf91b76e67">task</a>() {prefix().extra_state=1;}
<a name="l00459"></a>00459
<a name="l00460"></a>00460 <span class="keyword">public</span>:
<a name="l00462"></a><a class="code" href="a00199.html#98245ee0473f84cb19dbbf8c81134908">00462</a> <span class="keyword">virtual</span> <a class="code" href="a00199.html#98245ee0473f84cb19dbbf8c81134908">~task</a>() {}
<a name="l00463"></a>00463
<a name="l00465"></a>00465 <span class="keyword">virtual</span> <a class="code" href="a00199.html">task</a>* <a class="code" href="a00199.html#22c298cd40937a431a06777423f002f6">execute</a>() = 0;
<a name="l00466"></a>00466
<a name="l00468"></a><a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293e">00468</a> <span class="keyword">enum</span> <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293e">state_type</a> {
<a name="l00470"></a>00470 <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293ead0fe2302ccc360923f738c2ed7ec1b9">executing</a>,
<a name="l00472"></a>00472 <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293e3bf499aa6e6487cd1ace883a63100513">reexecute</a>,
<a name="l00474"></a>00474 <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293e0841dcf1c2a96dee9aa7b69f636cb81a">ready</a>,
<a name="l00476"></a>00476 <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293ebe94d3348dd038e41107819f00c1884c">allocated</a>,
<a name="l00478"></a>00478 <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293ecc67ca92bd6f1ce9738a1e9e7206b735">freed</a>,
<a name="l00480"></a>00480 <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293e58debec6ab130290640d0cc2eedba35d">recycle</a>
<a name="l00481"></a>00481 };
<a name="l00482"></a>00482
<a name="l00483"></a>00483 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00484"></a>00484 <span class="comment">// Allocating tasks</span>
<a name="l00485"></a>00485 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00486"></a>00486
<a name="l00488"></a><a class="code" href="a00199.html#23acb0da0afd690da797f9f882027d34">00488</a> <span class="keyword">static</span> internal::allocate_root_proxy <a class="code" href="a00199.html#23acb0da0afd690da797f9f882027d34">allocate_root</a>() {
<a name="l00489"></a>00489 <span class="keywordflow">return</span> internal::allocate_root_proxy();
<a name="l00490"></a>00490 }
<a name="l00491"></a>00491
<a name="l00492"></a>00492 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00494"></a><a class="code" href="a00199.html#8ccc518caf31075a3e073996d2d240a4">00494</a> <span class="preprocessor"> static internal::allocate_root_with_context_proxy allocate_root( task_group_context&amp; ctx ) {</span>
<a name="l00495"></a>00495 <span class="preprocessor"></span> <span class="keywordflow">return</span> internal::allocate_root_with_context_proxy(ctx);
<a name="l00496"></a>00496 }
<a name="l00497"></a>00497 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00498"></a>00498
<a name="l00500"></a>00500
<a name="l00501"></a><a class="code" href="a00199.html#1434c79a5138993269d034008bff7329">00501</a> internal::allocate_continuation_proxy&amp; allocate_continuation() {
<a name="l00502"></a>00502 <span class="keywordflow">return</span> *reinterpret_cast&lt;internal::allocate_continuation_proxy*&gt;(<span class="keyword">this</span>);
<a name="l00503"></a>00503 }
<a name="l00504"></a>00504
<a name="l00506"></a><a class="code" href="a00199.html#1ff794f7053cd9148d5f280fbf07377f">00506</a> internal::allocate_child_proxy&amp; allocate_child() {
<a name="l00507"></a>00507 <span class="keywordflow">return</span> *reinterpret_cast&lt;internal::allocate_child_proxy*&gt;(<span class="keyword">this</span>);
<a name="l00508"></a>00508 }
<a name="l00509"></a>00509
<a name="l00511"></a>00511 <span class="keyword">using</span> task_base::allocate_additional_child_of;
<a name="l00512"></a>00512
<a name="l00513"></a>00513 <span class="preprocessor">#if __TBB_DEPRECATED_TASK_INTERFACE</span>
<a name="l00515"></a>00515 <span class="preprocessor"></span>
<a name="l00519"></a>00519 <span class="preprocessor"> void __TBB_EXPORTED_METHOD destroy( task&amp; t );</span>
<a name="l00520"></a>00520 <span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/* !__TBB_DEPRECATED_TASK_INTERFACE */</span>
<a name="l00522"></a>00522 using task_base::destroy;
<a name="l00523"></a>00523 <span class="preprocessor">#endif </span><span class="comment">/* !__TBB_DEPRECATED_TASK_INTERFACE */</span>
<a name="l00524"></a>00524
<a name="l00525"></a>00525 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00526"></a>00526 <span class="comment">// Recycling of tasks</span>
<a name="l00527"></a>00527 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00528"></a>00528
<a name="l00530"></a>00530
<a name="l00536"></a><a class="code" href="a00199.html#a67a79e18f62b43a623a00cfbd76db4c">00536</a> <span class="keywordtype">void</span> recycle_as_continuation() {
<a name="l00537"></a>00537 __TBB_ASSERT( prefix().state==executing, <span class="stringliteral">"execute not running?"</span> );
<a name="l00538"></a>00538 prefix().state = allocated;
<a name="l00539"></a>00539 }
<a name="l00540"></a>00540
<a name="l00542"></a>00542
<a name="l00544"></a><a class="code" href="a00199.html#3b290d14109704e2b69dc1ac980a7a76">00544</a> <span class="keywordtype">void</span> recycle_as_safe_continuation() {
<a name="l00545"></a>00545 __TBB_ASSERT( prefix().state==executing, <span class="stringliteral">"execute not running?"</span> );
<a name="l00546"></a>00546 prefix().state = recycle;
<a name="l00547"></a>00547 }
<a name="l00548"></a>00548
<a name="l00550"></a><a class="code" href="a00199.html#db399855177438bbc9cc61d508dae8d2">00550</a> <span class="keywordtype">void</span> recycle_as_child_of( <a class="code" href="a00199.html">task</a>&amp; new_parent ) {
<a name="l00551"></a>00551 internal::task_prefix&amp; p = prefix();
<a name="l00552"></a>00552 __TBB_ASSERT( prefix().state==executing||prefix().state==allocated, <span class="stringliteral">"execute not running, or already recycled"</span> );
<a name="l00553"></a>00553 __TBB_ASSERT( prefix().ref_count==0, <span class="stringliteral">"no child tasks allowed when recycled as a child"</span> );
<a name="l00554"></a>00554 __TBB_ASSERT( p.parent==NULL, <span class="stringliteral">"parent must be null"</span> );
<a name="l00555"></a>00555 __TBB_ASSERT( new_parent.<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().state&lt;=recycle, <span class="stringliteral">"corrupt parent's state"</span> );
<a name="l00556"></a>00556 __TBB_ASSERT( new_parent.<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().state!=freed, <span class="stringliteral">"parent already freed"</span> );
<a name="l00557"></a>00557 p.state = allocated;
<a name="l00558"></a>00558 p.parent = &amp;new_parent;
<a name="l00559"></a>00559 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00560"></a>00560 <span class="preprocessor"></span> p.<a class="code" href="a00199.html#d8c36a93f3972590fbb65ff1cef3173b">context</a> = new_parent.<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().context;
<a name="l00561"></a>00561 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00562"></a>00562 }
<a name="l00563"></a>00563
<a name="l00565"></a>00565
<a name="l00566"></a><a class="code" href="a00199.html#4f1be9bbcdb487830dbe298b68d85144">00566</a> <span class="keywordtype">void</span> recycle_to_reexecute() {
<a name="l00567"></a>00567 __TBB_ASSERT( prefix().state==executing, <span class="stringliteral">"execute not running, or already recycled"</span> );
<a name="l00568"></a>00568 __TBB_ASSERT( prefix().ref_count==0, <span class="stringliteral">"no child tasks allowed when recycled for reexecution"</span> );
<a name="l00569"></a>00569 prefix().state = reexecute;
<a name="l00570"></a>00570 }
<a name="l00571"></a>00571
<a name="l00572"></a>00572 <span class="comment">// All depth-related methods are obsolete, and are retained for the sake </span>
<a name="l00573"></a>00573 <span class="comment">// of backward source compatibility only</span>
<a name="l00574"></a>00574 intptr_t depth()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 0;}
<a name="l00575"></a>00575 <span class="keywordtype">void</span> set_depth( intptr_t ) {}
<a name="l00576"></a>00576 <span class="keywordtype">void</span> add_to_depth( <span class="keywordtype">int</span> ) {}
<a name="l00577"></a>00577
<a name="l00578"></a>00578
<a name="l00579"></a>00579 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00580"></a>00580 <span class="comment">// Spawning and blocking</span>
<a name="l00581"></a>00581 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00582"></a>00582
<a name="l00584"></a><a class="code" href="a00199.html#06a4206a57e8e12a439b14d6d41cfd92">00584</a> <span class="keywordtype">void</span> set_ref_count( <span class="keywordtype">int</span> count ) {
<a name="l00585"></a>00585 <span class="preprocessor">#if TBB_USE_THREADING_TOOLS||TBB_USE_ASSERT</span>
<a name="l00586"></a>00586 <span class="preprocessor"></span> internal_set_ref_count(count);
<a name="l00587"></a>00587 <span class="preprocessor">#else</span>
<a name="l00588"></a>00588 <span class="preprocessor"></span> prefix().ref_count = count;
<a name="l00589"></a>00589 <span class="preprocessor">#endif </span><span class="comment">/* TBB_USE_THREADING_TOOLS||TBB_USE_ASSERT */</span>
<a name="l00590"></a>00590 }
<a name="l00591"></a>00591
<a name="l00593"></a>00593
<a name="l00594"></a><a class="code" href="a00199.html#f5fb43c7ad0de5a4b95703cebc39e345">00594</a> <span class="keywordtype">void</span> increment_ref_count() {
<a name="l00595"></a>00595 __TBB_FetchAndIncrementWacquire( &amp;prefix().ref_count );
<a name="l00596"></a>00596 }
<a name="l00597"></a>00597
<a name="l00599"></a>00599
<a name="l00600"></a><a class="code" href="a00199.html#ef4680f5c148020c5e7e43ddef44cd5d">00600</a> <span class="keywordtype">int</span> decrement_ref_count() {
<a name="l00601"></a>00601 <span class="preprocessor">#if TBB_USE_THREADING_TOOLS||TBB_USE_ASSERT</span>
<a name="l00602"></a>00602 <span class="preprocessor"></span> <span class="keywordflow">return</span> int(internal_decrement_ref_count());
<a name="l00603"></a>00603 <span class="preprocessor">#else</span>
<a name="l00604"></a>00604 <span class="preprocessor"></span> <span class="keywordflow">return</span> int(__TBB_FetchAndDecrementWrelease( &amp;prefix().ref_count ))-1;
<a name="l00605"></a>00605 <span class="preprocessor">#endif </span><span class="comment">/* TBB_USE_THREADING_TOOLS||TBB_USE_ASSERT */</span>
<a name="l00606"></a>00606 }
<a name="l00607"></a>00607
<a name="l00609"></a>00609 <span class="keyword">using</span> task_base::spawn;
<a name="l00610"></a>00610
<a name="l00612"></a><a class="code" href="a00199.html#3ce28ca9baa771cfc37ecd72e69c4f3c">00612</a> <span class="keywordtype">void</span> spawn_and_wait_for_all( <a class="code" href="a00199.html">task</a>&amp; child ) {
<a name="l00613"></a>00613 prefix().owner-&gt;wait_for_all( *<span class="keyword">this</span>, &amp;child );
<a name="l00614"></a>00614 }
<a name="l00615"></a>00615
<a name="l00617"></a>00617 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD spawn_and_wait_for_all( <a class="code" href="a00202.html">task_list</a>&amp; list );
<a name="l00618"></a>00618
<a name="l00620"></a><a class="code" href="a00199.html#ce8ce689c26a4ddf343829bc3c73290a">00620</a> <span class="keyword">static</span> <span class="keywordtype">void</span> spawn_root_and_wait( <a class="code" href="a00199.html">task</a>&amp; root ) {
<a name="l00621"></a>00621 root.<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().owner-&gt;spawn_root_and_wait( root, root.<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().next );
<a name="l00622"></a>00622 }
<a name="l00623"></a>00623
<a name="l00625"></a>00625
<a name="l00627"></a>00627 <span class="keyword">static</span> <span class="keywordtype">void</span> spawn_root_and_wait( <a class="code" href="a00202.html">task_list</a>&amp; root_list );
<a name="l00628"></a>00628
<a name="l00630"></a>00630
<a name="l00631"></a><a class="code" href="a00199.html#53d2615ad9c38859b4c8080936600283">00631</a> <span class="keywordtype">void</span> wait_for_all() {
<a name="l00632"></a>00632 prefix().owner-&gt;wait_for_all( *<span class="keyword">this</span>, NULL );
<a name="l00633"></a>00633 }
<a name="l00634"></a>00634
<a name="l00635"></a>00635 <span class="preprocessor">#if __TBB_ARENA_PER_MASTER</span>
<a name="l00637"></a><a class="code" href="a00199.html#8365d063c0cc9d7bd616bca47256b93c">00637</a> <span class="preprocessor"> static void enqueue( task&amp; t ) {</span>
<a name="l00638"></a>00638 <span class="preprocessor"></span> t.prefix().owner-&gt;enqueue( t, NULL );
<a name="l00639"></a>00639 }
<a name="l00640"></a>00640
<a name="l00641"></a>00641 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_ARENA_PER_MASTER */</span>
<a name="l00643"></a>00643 static task&amp; __TBB_EXPORTED_FUNC self();
<a name="l00644"></a>00644
<a name="l00646"></a><a class="code" href="a00199.html#314e98ee4347ccec83efcb9ee22e8596">00646</a> <a class="code" href="a00199.html">task</a>* parent()<span class="keyword"> const </span>{<span class="keywordflow">return</span> prefix().parent;}
<a name="l00647"></a>00647
<a name="l00648"></a>00648 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00650"></a><a class="code" href="a00199.html#d8c36a93f3972590fbb65ff1cef3173b">00650</a> <span class="preprocessor"> task_group_context* context() {return prefix().context;}</span>
<a name="l00651"></a>00651 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00652"></a>00652
<a name="l00654"></a><a class="code" href="a00199.html#f9169402702f56bf519448aaf34450aa">00654</a> <span class="keywordtype">bool</span> is_stolen_task()<span class="keyword"> const </span>{
<a name="l00655"></a>00655 <span class="keywordflow">return</span> (prefix().extra_state &amp; 0x80)!=0;
<a name="l00656"></a>00656 }
<a name="l00657"></a>00657
<a name="l00658"></a>00658 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00659"></a>00659 <span class="comment">// Debugging</span>
<a name="l00660"></a>00660 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00661"></a>00661
<a name="l00663"></a><a class="code" href="a00199.html#0af7b2d7e6e8b4333b2accfce3dfb374">00663</a> <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293e">state_type</a> state()<span class="keyword"> const </span>{<span class="keywordflow">return</span> <a class="code" href="a00199.html#4a3c415562d17905390ea5b49d12293e">state_type</a>(prefix().state);}
<a name="l00664"></a>00664
<a name="l00666"></a><a class="code" href="a00199.html#ad774f55eaec008ae02b236423209ced">00666</a> <span class="keywordtype">int</span> ref_count()<span class="keyword"> const </span>{
<a name="l00667"></a>00667 <span class="preprocessor">#if TBB_USE_ASSERT</span>
<a name="l00668"></a>00668 <span class="preprocessor"></span> internal::reference_count ref_count_ = prefix().ref_count;
<a name="l00669"></a>00669 __TBB_ASSERT( ref_count_==<span class="keywordtype">int</span>(ref_count_), <span class="stringliteral">"integer overflow error"</span>);
<a name="l00670"></a>00670 <span class="preprocessor">#endif</span>
<a name="l00671"></a>00671 <span class="preprocessor"></span> <span class="keywordflow">return</span> int(prefix().ref_count);
<a name="l00672"></a>00672 }
<a name="l00673"></a>00673
<a name="l00675"></a>00675 <span class="keywordtype">bool</span> __TBB_EXPORTED_METHOD is_owned_by_current_thread() <span class="keyword">const</span>;
<a name="l00676"></a>00676
<a name="l00677"></a>00677 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00678"></a>00678 <span class="comment">// Affinity</span>
<a name="l00679"></a>00679 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00680"></a>00680
<a name="l00682"></a>00682
<a name="l00683"></a><a class="code" href="a00199.html#d61bb32389d3857bf7511d69beaafb76">00683</a> <span class="keyword">typedef</span> internal::affinity_id affinity_id;
<a name="l00684"></a>00684
<a name="l00686"></a><a class="code" href="a00199.html#dca19d7a45487a7d67a0db517e2b57c9">00686</a> <span class="keywordtype">void</span> set_affinity( affinity_id <span class="keywordtype">id</span> ) {prefix().affinity = id;}
<a name="l00687"></a>00687
<a name="l00689"></a><a class="code" href="a00199.html#3a920a56b0bcf2801518fb45b2c9d2be">00689</a> affinity_id affinity()<span class="keyword"> const </span>{<span class="keywordflow">return</span> prefix().affinity;}
<a name="l00690"></a>00690
<a name="l00692"></a>00692
<a name="l00696"></a>00696 <span class="keyword">virtual</span> <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD note_affinity( affinity_id <span class="keywordtype">id</span> );
<a name="l00697"></a>00697
<a name="l00698"></a>00698 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00700"></a>00700 <span class="preprocessor"></span>
<a name="l00701"></a><a class="code" href="a00199.html#0f3fb4aac549ab642022450a4bd13326">00701</a> <span class="preprocessor"> bool cancel_group_execution () { return prefix().context-&gt;cancel_group_execution(); }</span>
<a name="l00702"></a>00702 <span class="preprocessor"></span>
<a name="l00704"></a><a class="code" href="a00199.html#025f18118c057c4c8db87ff2ce8df975">00704</a> <span class="keywordtype">bool</span> is_cancelled ()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> prefix().context-&gt;is_group_execution_cancelled(); }
<a name="l00705"></a>00705 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00706"></a>00706
<a name="l00707"></a>00707 <span class="keyword">private</span>:
<a name="l00708"></a>00708 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00200.html">interface5::internal::task_base</a>;
<a name="l00709"></a>00709 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00202.html">task_list</a>;
<a name="l00710"></a>00710 <span class="keyword">friend</span> <span class="keyword">class </span>internal::scheduler;
<a name="l00711"></a>00711 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_root_proxy;
<a name="l00712"></a>00712 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00713"></a>00713 <span class="preprocessor"></span> <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_root_with_context_proxy;
<a name="l00714"></a>00714 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00715"></a>00715 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_continuation_proxy;
<a name="l00716"></a>00716 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_child_proxy;
<a name="l00717"></a>00717 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_additional_child_of_proxy;
<a name="l00718"></a>00718
<a name="l00720"></a>00720
<a name="l00721"></a>00721 internal::task_prefix&amp; prefix( internal::version_tag* = NULL )<span class="keyword"> const </span>{
<a name="l00722"></a>00722 <span class="keywordflow">return</span> reinterpret_cast&lt;internal::task_prefix*&gt;(const_cast&lt;task*&gt;(<span class="keyword">this</span>))[-1];
<a name="l00723"></a>00723 }
<a name="l00724"></a>00724 }; <span class="comment">// class task</span>
<a name="l00725"></a>00725
<a name="l00727"></a>00727
<a name="l00728"></a><a class="code" href="a00163.html">00728</a> <span class="keyword">class </span><a class="code" href="a00163.html">empty_task</a>: <span class="keyword">public</span> <a class="code" href="a00199.html">task</a> {
<a name="l00729"></a>00729 <span class="comment">/*override*/</span> <a class="code" href="a00199.html">task</a>* execute() {
<a name="l00730"></a>00730 <span class="keywordflow">return</span> NULL;
<a name="l00731"></a>00731 }
<a name="l00732"></a>00732 };
<a name="l00733"></a>00733
<a name="l00735"></a>00735
<a name="l00737"></a><a class="code" href="a00202.html">00737</a> <span class="keyword">class </span><a class="code" href="a00202.html">task_list</a>: internal::no_copy {
<a name="l00738"></a>00738 <span class="keyword">private</span>:
<a name="l00739"></a>00739 <a class="code" href="a00199.html">task</a>* first;
<a name="l00740"></a>00740 <a class="code" href="a00199.html">task</a>** next_ptr;
<a name="l00741"></a>00741 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00199.html">task</a>;
<a name="l00742"></a>00742 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00200.html">interface5::internal::task_base</a>;
<a name="l00743"></a>00743 <span class="keyword">public</span>:
<a name="l00745"></a><a class="code" href="a00202.html#416341c2047eaef50417b41eaf7e9de6">00745</a> <a class="code" href="a00202.html">task_list</a>() : first(NULL), next_ptr(&amp;first) {}
<a name="l00746"></a>00746
<a name="l00748"></a><a class="code" href="a00202.html#6d438f1499a02db1e59c24ab6043e5ba">00748</a> ~<a class="code" href="a00202.html">task_list</a>() {}
<a name="l00749"></a>00749
<a name="l00751"></a><a class="code" href="a00202.html#f3ac31e092814b90929f81bb30441959">00751</a> <span class="keywordtype">bool</span> empty()<span class="keyword"> const </span>{<span class="keywordflow">return</span> !first;}
<a name="l00752"></a>00752
<a name="l00754"></a><a class="code" href="a00202.html#4cd34756bc4763dafb8c84838a0124ff">00754</a> <span class="keywordtype">void</span> push_back( <a class="code" href="a00199.html">task</a>&amp; <a class="code" href="a00199.html">task</a> ) {
<a name="l00755"></a>00755 task.<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().next = NULL;
<a name="l00756"></a>00756 *next_ptr = &amp;task;
<a name="l00757"></a>00757 next_ptr = &amp;task.<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().next;
<a name="l00758"></a>00758 }
<a name="l00759"></a>00759
<a name="l00761"></a><a class="code" href="a00202.html#5fe85df5ed524418389d34051750347d">00761</a> <a class="code" href="a00199.html">task</a>&amp; pop_front() {
<a name="l00762"></a>00762 __TBB_ASSERT( !empty(), <span class="stringliteral">"attempt to pop item from empty task_list"</span> );
<a name="l00763"></a>00763 <a class="code" href="a00199.html">task</a>* result = first;
<a name="l00764"></a>00764 first = result-&gt;<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().next;
<a name="l00765"></a>00765 <span class="keywordflow">if</span>( !first ) next_ptr = &amp;first;
<a name="l00766"></a>00766 <span class="keywordflow">return</span> *result;
<a name="l00767"></a>00767 }
<a name="l00768"></a>00768
<a name="l00770"></a><a class="code" href="a00202.html#fce446ee13e025969945328f3ff59b95">00770</a> <span class="keywordtype">void</span> clear() {
<a name="l00771"></a>00771 first=NULL;
<a name="l00772"></a>00772 next_ptr=&amp;first;
<a name="l00773"></a>00773 }
<a name="l00774"></a>00774 };
<a name="l00775"></a>00775
<a name="l00776"></a>00776 <span class="keyword">inline</span> <span class="keywordtype">void</span> interface5::internal::task_base::spawn( task&amp; t ) {
<a name="l00777"></a>00777 t.<a class="code" href="a00199.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().owner-&gt;spawn( t, t.prefix().next );
<a name="l00778"></a>00778 }
<a name="l00779"></a>00779
<a name="l00780"></a>00780 <span class="keyword">inline</span> <span class="keywordtype">void</span> interface5::internal::task_base::spawn( task_list&amp; list ) {
<a name="l00781"></a>00781 <span class="keywordflow">if</span>( task* t = list.first ) {
<a name="l00782"></a>00782 t-&gt;prefix().owner-&gt;spawn( *t, *list.next_ptr );
<a name="l00783"></a>00783 list.clear();
<a name="l00784"></a>00784 }
<a name="l00785"></a>00785 }
<a name="l00786"></a>00786
<a name="l00787"></a><a class="code" href="a00199.html#c33c7edbaec67aa8a56f48986a9dc69f">00787</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="a00199.html#ce8ce689c26a4ddf343829bc3c73290a">task::spawn_root_and_wait</a>( <a class="code" href="a00202.html">task_list</a>&amp; root_list ) {
<a name="l00788"></a>00788 <span class="keywordflow">if</span>( <a class="code" href="a00199.html">task</a>* t = root_list.<a class="code" href="a00202.html#78fcc389819ee34427d510f7d8cb8b1e">first</a> ) {
<a name="l00789"></a>00789 t-&gt;prefix().owner-&gt;spawn_root_and_wait( *t, *root_list.<a class="code" href="a00202.html#21553a32bcd08f980aa28f61254307da">next_ptr</a> );
<a name="l00790"></a>00790 root_list.<a class="code" href="a00202.html#fce446ee13e025969945328f3ff59b95">clear</a>();
<a name="l00791"></a>00791 }
<a name="l00792"></a>00792 }
<a name="l00793"></a>00793
<a name="l00794"></a>00794 } <span class="comment">// namespace tbb</span>
<a name="l00795"></a>00795
<a name="l00796"></a>00796 <span class="keyword">inline</span> <span class="keywordtype">void</span> *operator new( size_t bytes, <span class="keyword">const</span> tbb::internal::allocate_root_proxy&amp; ) {
<a name="l00797"></a>00797 <span class="keywordflow">return</span> &amp;tbb::internal::allocate_root_proxy::allocate(bytes);
<a name="l00798"></a>00798 }
<a name="l00799"></a>00799
<a name="l00800"></a>00800 <span class="keyword">inline</span> <span class="keywordtype">void</span> operator delete( <span class="keywordtype">void</span>* task, <span class="keyword">const</span> tbb::internal::allocate_root_proxy&amp; ) {
<a name="l00801"></a>00801 tbb::internal::allocate_root_proxy::free( *static_cast&lt;tbb::task*&gt;(task) );
<a name="l00802"></a>00802 }
<a name="l00803"></a>00803
<a name="l00804"></a>00804 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00805"></a>00805 <span class="preprocessor"></span><span class="keyword">inline</span> <span class="keywordtype">void</span> *operator new( size_t bytes, <span class="keyword">const</span> tbb::internal::allocate_root_with_context_proxy&amp; p ) {
<a name="l00806"></a>00806 <span class="keywordflow">return</span> &amp;p.allocate(bytes);
<a name="l00807"></a>00807 }
<a name="l00808"></a>00808
<a name="l00809"></a>00809 <span class="keyword">inline</span> <span class="keywordtype">void</span> operator delete( <span class="keywordtype">void</span>* task, <span class="keyword">const</span> tbb::internal::allocate_root_with_context_proxy&amp; p ) {
<a name="l00810"></a>00810 p.free( *static_cast&lt;tbb::task*&gt;(task) );
<a name="l00811"></a>00811 }
<a name="l00812"></a>00812 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00813"></a>00813
<a name="l00814"></a>00814 <span class="keyword">inline</span> <span class="keywordtype">void</span> *operator new( size_t bytes, <span class="keyword">const</span> tbb::internal::allocate_continuation_proxy&amp; p ) {
<a name="l00815"></a>00815 <span class="keywordflow">return</span> &amp;p.allocate(bytes);
<a name="l00816"></a>00816 }
<a name="l00817"></a>00817
<a name="l00818"></a>00818 <span class="keyword">inline</span> <span class="keywordtype">void</span> operator delete( <span class="keywordtype">void</span>* task, <span class="keyword">const</span> tbb::internal::allocate_continuation_proxy&amp; p ) {
<a name="l00819"></a>00819 p.free( *static_cast&lt;tbb::task*&gt;(task) );
<a name="l00820"></a>00820 }
<a name="l00821"></a>00821
<a name="l00822"></a>00822 <span class="keyword">inline</span> <span class="keywordtype">void</span> *operator new( size_t bytes, <span class="keyword">const</span> tbb::internal::allocate_child_proxy&amp; p ) {
<a name="l00823"></a>00823 <span class="keywordflow">return</span> &amp;p.allocate(bytes);
<a name="l00824"></a>00824 }
<a name="l00825"></a>00825
<a name="l00826"></a>00826 <span class="keyword">inline</span> <span class="keywordtype">void</span> operator delete( <span class="keywordtype">void</span>* task, <span class="keyword">const</span> tbb::internal::allocate_child_proxy&amp; p ) {
<a name="l00827"></a>00827 p.free( *static_cast&lt;tbb::task*&gt;(task) );
<a name="l00828"></a>00828 }
<a name="l00829"></a>00829
<a name="l00830"></a>00830 <span class="keyword">inline</span> <span class="keywordtype">void</span> *operator new( size_t bytes, <span class="keyword">const</span> tbb::internal::allocate_additional_child_of_proxy&amp; p ) {
<a name="l00831"></a>00831 <span class="keywordflow">return</span> &amp;p.allocate(bytes);
<a name="l00832"></a>00832 }
<a name="l00833"></a>00833
<a name="l00834"></a>00834 <span class="keyword">inline</span> <span class="keywordtype">void</span> operator delete( <span class="keywordtype">void</span>* task, <span class="keyword">const</span> tbb::internal::allocate_additional_child_of_proxy&amp; p ) {
<a name="l00835"></a>00835 p.free( *static_cast&lt;tbb::task*&gt;(task) );
<a name="l00836"></a>00836 }
<a name="l00837"></a>00837
<a name="l00838"></a>00838 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_task_H */</span>
</pre></div><hr>
<p></p>
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