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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 2005-2011 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 <span class="preprocessor">#include <climits></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="keyword">typedef</span> <span class="keyword">struct </span>___itt_caller *__itt_caller;
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="keyword">namespace </span>tbb {
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="keyword">class </span>task;
<a name="l00033"></a>00033 <span class="keyword">class </span>task_list;
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span><span class="keyword">class </span>task_group_context;
<a name="l00037"></a>00037 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="comment">// MSVC does not allow taking the address of a member that was defined</span>
<a name="l00040"></a>00040 <span class="comment">// privately in task_base and made public in class task via a using declaration.</span>
<a name="l00041"></a>00041 <span class="preprocessor">#if _MSC_VER || (__GNUC__==3 && __GNUC_MINOR__<3)</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#define __TBB_TASK_BASE_ACCESS public</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#define __TBB_TASK_BASE_ACCESS private</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span>
<a name="l00047"></a>00047 <span class="keyword">namespace </span>internal {
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">class </span>allocate_additional_child_of_proxy: no_assign {
<a name="l00051"></a>00051 task* <span class="keyword">self</span>;
<a name="l00052"></a>00052 task& parent;
<a name="l00053"></a>00053 <span class="keyword">public</span>:
<a name="l00054"></a>00054 <span class="keyword">explicit</span> allocate_additional_child_of_proxy( task& parent_ ) : self(NULL), parent(parent_) {}
<a name="l00055"></a>00055 task& __TBB_EXPORTED_METHOD allocate( size_t size ) <span class="keyword">const</span>;
<a name="l00056"></a>00056 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD free( task& ) <span class="keyword">const</span>;
<a name="l00057"></a>00057 };
<a name="l00058"></a>00058
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keyword">namespace </span>interface5 {
<a name="l00062"></a>00062 <span class="keyword">namespace </span>internal {
<a name="l00064"></a>00064
<a name="l00069"></a><a class="code" href="a00312.html">00069</a> <span class="keyword">class </span><a class="code" href="a00312.html">task_base</a>: tbb::internal::no_copy {
<a name="l00070"></a>00070 __TBB_TASK_BASE_ACCESS:
<a name="l00071"></a>00071 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00311.html">tbb::task</a>;
<a name="l00072"></a>00072
<a name="l00074"></a>00074 <span class="keyword">static</span> <span class="keywordtype">void</span> spawn( <a class="code" href="a00311.html">task</a>& t );
<a name="l00075"></a>00075
<a name="l00077"></a>00077 <span class="keyword">static</span> <span class="keywordtype">void</span> spawn( <a class="code" href="a00315.html">task_list</a>& list );
<a name="l00078"></a>00078
<a name="l00080"></a>00080
<a name="l00082"></a>00082 <span class="keyword">static</span> tbb::internal::allocate_additional_child_of_proxy allocate_additional_child_of( <a class="code" href="a00311.html">task</a>& t ) {
<a name="l00083"></a>00083 <span class="keywordflow">return</span> tbb::internal::allocate_additional_child_of_proxy(t);
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085
<a name="l00087"></a>00087
<a name="l00091"></a>00091 <span class="keyword">static</span> <span class="keywordtype">void</span> __TBB_EXPORTED_FUNC <a class="code" href="a00311.html#dfaacf92685e5f86393bf657b2853bf8">destroy</a>( <a class="code" href="a00311.html">task</a>& victim );
<a name="l00092"></a>00092 };
<a name="l00093"></a>00093 } <span class="comment">// internal</span>
<a name="l00094"></a>00094 } <span class="comment">// interface5</span>
<a name="l00095"></a>00095
<a name="l00097"></a>00097 <span class="keyword">namespace </span>internal {
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keyword">class </span>scheduler: no_copy {
<a name="l00100"></a>00100 <span class="keyword">public</span>:
<a name="l00102"></a>00102 <span class="keyword">virtual</span> <span class="keywordtype">void</span> spawn( <a class="code" href="a00311.html">task</a>& first, <a class="code" href="a00311.html">task</a>*& next ) = 0;
<a name="l00103"></a>00103
<a name="l00105"></a>00105 <span class="keyword">virtual</span> <span class="keywordtype">void</span> wait_for_all( <a class="code" href="a00311.html">task</a>& parent, <a class="code" href="a00311.html">task</a>* child ) = 0;
<a name="l00106"></a>00106
<a name="l00108"></a>00108 <span class="keyword">virtual</span> <span class="keywordtype">void</span> spawn_root_and_wait( <a class="code" href="a00311.html">task</a>& first, <a class="code" href="a00311.html">task</a>*& next ) = 0;
<a name="l00109"></a>00109
<a name="l00111"></a>00111 <span class="comment">// Have to have it just to shut up overzealous compilation warnings</span>
<a name="l00112"></a>00112 <span class="keyword">virtual</span> ~scheduler() = 0;
<a name="l00113"></a>00113
<a name="l00115"></a>00115 <span class="keyword">virtual</span> <span class="keywordtype">void</span> enqueue( <a class="code" href="a00311.html">task</a>& t, <span class="keywordtype">void</span>* reserved ) = 0;
<a name="l00116"></a>00116 };
<a name="l00117"></a>00117
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keyword">typedef</span> intptr_t reference_count;
<a name="l00121"></a>00121
<a name="l00123"></a>00123 <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> affinity_id;
<a name="l00124"></a>00124
<a name="l00125"></a>00125 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00126"></a>00126 <span class="preprocessor"></span> <span class="keyword">class </span>generic_scheduler;
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="keyword">struct </span>context_list_node_t {
<a name="l00129"></a>00129 context_list_node_t *my_prev,
<a name="l00130"></a>00130 *my_next;
<a name="l00131"></a>00131 };
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keyword">class </span>allocate_root_with_context_proxy: no_assign {
<a name="l00134"></a>00134 task_group_context& my_context;
<a name="l00135"></a>00135 <span class="keyword">public</span>:
<a name="l00136"></a>00136 allocate_root_with_context_proxy ( task_group_context& ctx ) : my_context(ctx) {}
<a name="l00137"></a>00137 task& __TBB_EXPORTED_METHOD allocate( size_t size ) <span class="keyword">const</span>;
<a name="l00138"></a>00138 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD free( task& ) <span class="keyword">const</span>;
<a name="l00139"></a>00139 };
<a name="l00140"></a>00140 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keyword">class </span>allocate_root_proxy: no_assign {
<a name="l00143"></a>00143 <span class="keyword">public</span>:
<a name="l00144"></a>00144 <span class="keyword">static</span> task& __TBB_EXPORTED_FUNC allocate( size_t size );
<a name="l00145"></a>00145 <span class="keyword">static</span> <span class="keywordtype">void</span> __TBB_EXPORTED_FUNC free( task& );
<a name="l00146"></a>00146 };
<a name="l00147"></a>00147
<a name="l00148"></a>00148 <span class="keyword">class </span>allocate_continuation_proxy: no_assign {
<a name="l00149"></a>00149 <span class="keyword">public</span>:
<a name="l00150"></a>00150 task& __TBB_EXPORTED_METHOD allocate( size_t size ) <span class="keyword">const</span>;
<a name="l00151"></a>00151 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD free( task& ) <span class="keyword">const</span>;
<a name="l00152"></a>00152 };
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="keyword">class </span>allocate_child_proxy: no_assign {
<a name="l00155"></a>00155 <span class="keyword">public</span>:
<a name="l00156"></a>00156 task& __TBB_EXPORTED_METHOD allocate( size_t size ) <span class="keyword">const</span>;
<a name="l00157"></a>00157 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD free( task& ) <span class="keyword">const</span>;
<a name="l00158"></a>00158 };
<a name="l00159"></a>00159
<a name="l00161"></a>00161
<a name="l00172"></a>00172 <span class="keyword">class </span>task_prefix {
<a name="l00173"></a>00173 <span class="keyword">private</span>:
<a name="l00174"></a>00174 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00311.html">tbb::task</a>;
<a name="l00175"></a>00175 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00312.html">tbb::interface5::internal::task_base</a>;
<a name="l00176"></a>00176 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00315.html">tbb::task_list</a>;
<a name="l00177"></a>00177 <span class="keyword">friend</span> <span class="keyword">class </span>internal::scheduler;
<a name="l00178"></a>00178 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_root_proxy;
<a name="l00179"></a>00179 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_child_proxy;
<a name="l00180"></a>00180 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_continuation_proxy;
<a name="l00181"></a>00181 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_additional_child_of_proxy;
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00185"></a>00185 <span class="preprocessor"></span>
<a name="l00188"></a>00188 <span class="preprocessor"> task_group_context *context;</span>
<a name="l00189"></a>00189 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00190"></a>00190
<a name="l00192"></a>00192
<a name="l00197"></a>00197 scheduler* origin;
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00200"></a>00200 <span class="preprocessor"></span> <span class="keyword">union </span>{
<a name="l00201"></a>00201 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00203"></a>00203
<a name="l00205"></a>00205 scheduler* owner;
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00209"></a>00209 <span class="preprocessor"></span>
<a name="l00210"></a>00210 <span class="preprocessor"> task* next_offloaded;</span>
<a name="l00211"></a>00211 <span class="preprocessor"></span> };
<a name="l00212"></a>00212 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00213"></a>00213
<a name="l00215"></a>00215
<a name="l00218"></a>00218 <a class="code" href="a00311.html">tbb::task</a>* parent;
<a name="l00219"></a>00219
<a name="l00221"></a>00221
<a name="l00225"></a>00225 __TBB_atomic reference_count ref_count;
<a name="l00226"></a>00226
<a name="l00228"></a>00228
<a name="l00230"></a>00230 <span class="keywordtype">int</span> depth;
<a name="l00231"></a>00231
<a name="l00233"></a>00233
<a name="l00234"></a>00234 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> state;
<a name="l00235"></a>00235
<a name="l00237"></a>00237
<a name="l00242"></a>00242 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> extra_state;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 affinity_id affinity;
<a name="l00245"></a>00245
<a name="l00247"></a>00247 <a class="code" href="a00311.html">tbb::task</a>* next;
<a name="l00248"></a>00248
<a name="l00250"></a>00250 <a class="code" href="a00311.html">tbb::task</a>& task() {<span class="keywordflow">return</span> *reinterpret_cast<tbb::task*>(<span class="keyword">this</span>+1);}
<a name="l00251"></a>00251 };
<a name="l00252"></a>00252
<a name="l00253"></a>00253 } <span class="comment">// namespace internal</span>
<a name="l00255"></a>00255 <span class="comment"></span>
<a name="l00256"></a>00256 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00257"></a>00257 <span class="preprocessor"></span>
<a name="l00258"></a>00258 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00259"></a>00259 <span class="preprocessor"></span><span class="keyword">namespace </span>internal {
<a name="l00260"></a>00260 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> priority_stride_v4 = INT_MAX / 4;
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262
<a name="l00263"></a>00263 <span class="keyword">enum</span> priority_t {
<a name="l00264"></a>00264 priority_normal = internal::priority_stride_v4 * 2,
<a name="l00265"></a>00265 priority_low = priority_normal - internal::priority_stride_v4,
<a name="l00266"></a>00266 priority_high = priority_normal + internal::priority_stride_v4
<a name="l00267"></a>00267 };
<a name="l00268"></a>00268
<a name="l00269"></a>00269 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00270"></a>00270
<a name="l00271"></a>00271 <span class="preprocessor">#if TBB_USE_CAPTURED_EXCEPTION</span>
<a name="l00272"></a>00272 <span class="preprocessor"></span> <span class="keyword">class </span>tbb_exception;
<a name="l00273"></a>00273 <span class="preprocessor">#else</span>
<a name="l00274"></a>00274 <span class="preprocessor"></span> <span class="keyword">namespace </span>internal {
<a name="l00275"></a>00275 <span class="keyword">class </span>tbb_exception_ptr;
<a name="l00276"></a>00276 }
<a name="l00277"></a>00277 <span class="preprocessor">#endif </span><span class="comment">/* !TBB_USE_CAPTURED_EXCEPTION */</span>
<a name="l00278"></a>00278
<a name="l00279"></a>00279 <span class="keyword">class </span>task_scheduler_init;
<a name="l00280"></a>00280
<a name="l00282"></a>00282
<a name="l00302"></a><a class="code" href="a00313.html">00302</a> <span class="keyword">class </span><a class="code" href="a00314.html">task_group_context</a> : internal::no_copy {
<a name="l00303"></a>00303 <span class="keyword">private</span>:
<a name="l00304"></a>00304 <span class="keyword">friend</span> <span class="keyword">class </span>internal::generic_scheduler;
<a name="l00305"></a>00305 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00316.html">task_scheduler_init</a>;
<a name="l00306"></a>00306
<a name="l00307"></a>00307 <span class="preprocessor">#if TBB_USE_CAPTURED_EXCEPTION</span>
<a name="l00308"></a>00308 <span class="preprocessor"></span> <span class="keyword">typedef</span> <a class="code" href="a00319.html">tbb_exception</a> <a class="code" href="a00319.html">exception_container_type</a>;
<a name="l00309"></a>00309 <span class="preprocessor">#else</span>
<a name="l00310"></a>00310 <span class="preprocessor"></span> <span class="keyword">typedef</span> <a class="code" href="a00320.html">internal::tbb_exception_ptr</a> <a class="code" href="a00319.html">exception_container_type</a>;
<a name="l00311"></a>00311 <span class="preprocessor">#endif</span>
<a name="l00312"></a>00312 <span class="preprocessor"></span>
<a name="l00313"></a>00313 <span class="keyword">enum</span> version_traits_word_layout {
<a name="l00314"></a>00314 traits_offset = 16,
<a name="l00315"></a>00315 version_mask = 0xFFFF,
<a name="l00316"></a>00316 traits_mask = 0xFFFFul << traits_offset
<a name="l00317"></a>00317 };
<a name="l00318"></a>00318
<a name="l00319"></a>00319 <span class="keyword">public</span>:
<a name="l00320"></a>00320 <span class="keyword">enum</span> kind_type {
<a name="l00321"></a>00321 isolated,
<a name="l00322"></a>00322 bound
<a name="l00323"></a>00323 };
<a name="l00324"></a>00324
<a name="l00325"></a>00325 <span class="keyword">enum</span> traits_type {
<a name="l00326"></a>00326 exact_exception = 0x0001ul << traits_offset,
<a name="l00327"></a>00327 concurrent_wait = 0x0004ul << traits_offset,
<a name="l00328"></a>00328 <span class="preprocessor">#if TBB_USE_CAPTURED_EXCEPTION</span>
<a name="l00329"></a>00329 <span class="preprocessor"></span> default_traits = 0
<a name="l00330"></a>00330 <span class="preprocessor">#else</span>
<a name="l00331"></a>00331 <span class="preprocessor"></span> default_traits = exact_exception
<a name="l00332"></a>00332 <span class="preprocessor">#endif </span><span class="comment">/* !TBB_USE_CAPTURED_EXCEPTION */</span>
<a name="l00333"></a>00333 };
<a name="l00334"></a>00334
<a name="l00335"></a>00335 <span class="keyword">private</span>:
<a name="l00336"></a>00336 <span class="keyword">enum</span> state {
<a name="l00337"></a>00337 may_have_children = 1
<a name="l00338"></a>00338 };
<a name="l00339"></a>00339
<a name="l00340"></a>00340 <span class="keyword">union </span>{
<a name="l00342"></a>00342 kind_type my_kind;
<a name="l00343"></a>00343 uintptr_t _my_kind_aligner;
<a name="l00344"></a>00344 };
<a name="l00345"></a>00345
<a name="l00347"></a>00347 <a class="code" href="a00314.html">task_group_context</a> *my_parent;
<a name="l00348"></a>00348
<a name="l00350"></a>00350
<a name="l00352"></a>00352 internal::context_list_node_t my_node;
<a name="l00353"></a>00353
<a name="l00355"></a>00355 __itt_caller itt_caller;
<a name="l00356"></a>00356
<a name="l00358"></a>00358
<a name="l00361"></a>00361 <span class="keywordtype">char</span> _leading_padding[internal::NFS_MaxLineSize
<a name="l00362"></a>00362 - 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="l00363"></a>00363 - <span class="keyword">sizeof</span>(__itt_caller)];
<a name="l00364"></a>00364
<a name="l00366"></a>00366 uintptr_t my_cancellation_requested;
<a name="l00367"></a>00367
<a name="l00369"></a>00369
<a name="l00372"></a>00372 uintptr_t my_version_and_traits;
<a name="l00373"></a>00373
<a name="l00375"></a>00375 <a class="code" href="a00319.html">exception_container_type</a> *my_exception;
<a name="l00376"></a>00376
<a name="l00378"></a>00378 internal::generic_scheduler *my_owner;
<a name="l00379"></a>00379
<a name="l00381"></a>00381 uintptr_t my_state;
<a name="l00382"></a>00382
<a name="l00383"></a>00383 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00385"></a>00385 <span class="preprocessor"> intptr_t my_priority;</span>
<a name="l00386"></a>00386 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00387"></a>00387
<a name="l00389"></a>00389
<a name="l00390"></a>00390 <span class="keywordtype">char</span> _trailing_padding[internal::NFS_MaxLineSize - 2 * <span class="keyword">sizeof</span>(uintptr_t) - 2 * <span class="keyword">sizeof</span>(<span class="keywordtype">void</span>*)
<a name="l00391"></a>00391 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00392"></a>00392 <span class="preprocessor"></span> - <span class="keyword">sizeof</span>(intptr_t)
<a name="l00393"></a>00393 #endif <span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00394"></a>00394 ];
<a name="l00395"></a>00395
<a name="l00396"></a>00396 <span class="keyword">public</span>:
<a name="l00398"></a>00398
<a name="l00426"></a><a class="code" href="a00313.html#19fee08fb8ac98adccfe69c1aa63c491">00426</a> <a class="code" href="a00314.html">task_group_context</a> ( kind_type relation_with_parent = bound,
<a name="l00427"></a>00427 uintptr_t traits = default_traits )
<a name="l00428"></a>00428 : my_kind(relation_with_parent)
<a name="l00429"></a>00429 , my_version_and_traits(1 | traits)
<a name="l00430"></a>00430 {
<a name="l00431"></a>00431 init();
<a name="l00432"></a>00432 }
<a name="l00433"></a>00433
<a name="l00434"></a>00434 __TBB_EXPORTED_METHOD ~<a class="code" href="a00314.html">task_group_context</a> ();
<a name="l00435"></a>00435
<a name="l00437"></a>00437
<a name="l00444"></a>00444 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD reset ();
<a name="l00445"></a>00445
<a name="l00447"></a>00447
<a name="l00454"></a>00454 <span class="keywordtype">bool</span> __TBB_EXPORTED_METHOD cancel_group_execution ();
<a name="l00455"></a>00455
<a name="l00457"></a>00457 <span class="keywordtype">bool</span> __TBB_EXPORTED_METHOD is_group_execution_cancelled () <span class="keyword">const</span>;
<a name="l00458"></a>00458
<a name="l00460"></a>00460
<a name="l00466"></a>00466 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD register_pending_exception ();
<a name="l00467"></a>00467
<a name="l00468"></a>00468 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00470"></a>00470 <span class="preprocessor"> void set_priority ( priority_t );</span>
<a name="l00471"></a>00471 <span class="preprocessor"></span>
<a name="l00473"></a>00473 priority_t priority () <span class="keyword">const</span>;
<a name="l00474"></a>00474 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00475"></a>00475
<a name="l00476"></a>00476 <span class="keyword">protected</span>:
<a name="l00478"></a>00478
<a name="l00479"></a>00479 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD init ();
<a name="l00480"></a>00480
<a name="l00481"></a>00481 <span class="keyword">private</span>:
<a name="l00482"></a>00482 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00311.html">task</a>;
<a name="l00483"></a>00483 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_root_with_context_proxy;
<a name="l00484"></a>00484
<a name="l00485"></a>00485 <span class="keyword">static</span> <span class="keyword">const</span> kind_type binding_required = bound;
<a name="l00486"></a>00486 <span class="keyword">static</span> <span class="keyword">const</span> kind_type binding_completed = kind_type(bound+1);
<a name="l00487"></a>00487 <span class="keyword">static</span> <span class="keyword">const</span> kind_type detached = kind_type(binding_completed+1);
<a name="l00488"></a>00488 <span class="keyword">static</span> <span class="keyword">const</span> kind_type dying = kind_type(detached+1);
<a name="l00489"></a>00489
<a name="l00491"></a>00491
<a name="l00493"></a>00493 <span class="keyword">template</span> <<span class="keyword">typename</span> T>
<a name="l00494"></a>00494 <span class="keywordtype">void</span> propagate_state_from_ancestors ( T <a class="code" href="a00314.html">task_group_context</a>::*mptr_state, T new_state );
<a name="l00495"></a>00495
<a name="l00497"></a>00497 <span class="keyword">inline</span> <span class="keywordtype">void</span> finish_initialization ( internal::generic_scheduler *local_sched );
<a name="l00498"></a>00498
<a name="l00500"></a>00500 <span class="keywordtype">void</span> bind_to ( internal::generic_scheduler *local_sched );
<a name="l00501"></a>00501
<a name="l00503"></a>00503 <span class="keywordtype">void</span> register_with ( internal::generic_scheduler *local_sched );
<a name="l00504"></a>00504
<a name="l00505"></a>00505 }; <span class="comment">// class task_group_context</span>
<a name="l00506"></a>00506
<a name="l00507"></a>00507 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00508"></a>00508
<a name="l00510"></a>00510
<a name="l00511"></a><a class="code" href="a00311.html">00511</a> <span class="keyword">class </span><a class="code" href="a00311.html">task</a>: __TBB_TASK_BASE_ACCESS interface5::internal::task_base {
<a name="l00512"></a>00512
<a name="l00514"></a>00514 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD internal_set_ref_count( <span class="keywordtype">int</span> count );
<a name="l00515"></a>00515
<a name="l00517"></a>00517 internal::reference_count __TBB_EXPORTED_METHOD internal_decrement_ref_count();
<a name="l00518"></a>00518
<a name="l00519"></a>00519 <span class="keyword">protected</span>:
<a name="l00521"></a><a class="code" href="a00311.html#2bce8ec6e44706e70128f5cf91b76e67">00521</a> <a class="code" href="a00311.html">task</a>() {prefix().extra_state=1;}
<a name="l00522"></a>00522
<a name="l00523"></a>00523 <span class="keyword">public</span>:
<a name="l00525"></a><a class="code" href="a00311.html#98245ee0473f84cb19dbbf8c81134908">00525</a> <span class="keyword">virtual</span> ~<a class="code" href="a00311.html">task</a>() {}
<a name="l00526"></a>00526
<a name="l00528"></a>00528 <span class="keyword">virtual</span> <a class="code" href="a00311.html">task</a>* execute() = 0;
<a name="l00529"></a>00529
<a name="l00531"></a><a class="code" href="a00311.html#4a3c415562d17905390ea5b49d12293e">00531</a> <span class="keyword">enum</span> <a class="code" href="a00311.html#4a3c415562d17905390ea5b49d12293e">state_type</a> {
<a name="l00533"></a>00533 executing,
<a name="l00535"></a>00535 reexecute,
<a name="l00537"></a>00537 ready,
<a name="l00539"></a>00539 allocated,
<a name="l00541"></a>00541 freed,
<a name="l00543"></a>00543 recycle
<a name="l00544"></a>00544 };
<a name="l00545"></a>00545
<a name="l00546"></a>00546 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00547"></a>00547 <span class="comment">// Allocating tasks</span>
<a name="l00548"></a>00548 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00549"></a>00549
<a name="l00551"></a><a class="code" href="a00311.html#23acb0da0afd690da797f9f882027d34">00551</a> <span class="keyword">static</span> internal::allocate_root_proxy allocate_root() {
<a name="l00552"></a>00552 <span class="keywordflow">return</span> internal::allocate_root_proxy();
<a name="l00553"></a>00553 }
<a name="l00554"></a>00554
<a name="l00555"></a>00555 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00557"></a><a class="code" href="a00311.html#8ccc518caf31075a3e073996d2d240a4">00557</a> <span class="preprocessor"> static internal::allocate_root_with_context_proxy allocate_root( task_group_context& ctx ) {</span>
<a name="l00558"></a>00558 <span class="preprocessor"></span> <span class="keywordflow">return</span> internal::allocate_root_with_context_proxy(ctx);
<a name="l00559"></a>00559 }
<a name="l00560"></a>00560 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00561"></a>00561
<a name="l00563"></a>00563
<a name="l00564"></a><a class="code" href="a00311.html#1434c79a5138993269d034008bff7329">00564</a> internal::allocate_continuation_proxy& allocate_continuation() {
<a name="l00565"></a>00565 <span class="keywordflow">return</span> *reinterpret_cast<internal::allocate_continuation_proxy*>(<span class="keyword">this</span>);
<a name="l00566"></a>00566 }
<a name="l00567"></a>00567
<a name="l00569"></a><a class="code" href="a00311.html#1ff794f7053cd9148d5f280fbf07377f">00569</a> internal::allocate_child_proxy& allocate_child() {
<a name="l00570"></a>00570 <span class="keywordflow">return</span> *reinterpret_cast<internal::allocate_child_proxy*>(<span class="keyword">this</span>);
<a name="l00571"></a>00571 }
<a name="l00572"></a>00572
<a name="l00574"></a>00574 <span class="keyword">using</span> task_base::allocate_additional_child_of;
<a name="l00575"></a>00575
<a name="l00576"></a>00576 <span class="preprocessor">#if __TBB_DEPRECATED_TASK_INTERFACE</span>
<a name="l00578"></a>00578 <span class="preprocessor"></span>
<a name="l00582"></a>00582 <span class="preprocessor"> void __TBB_EXPORTED_METHOD destroy( task& t );</span>
<a name="l00583"></a>00583 <span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/* !__TBB_DEPRECATED_TASK_INTERFACE */</span>
<a name="l00585"></a>00585 using task_base::destroy;
<a name="l00586"></a>00586 <span class="preprocessor">#endif </span><span class="comment">/* !__TBB_DEPRECATED_TASK_INTERFACE */</span>
<a name="l00587"></a>00587
<a name="l00588"></a>00588 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00589"></a>00589 <span class="comment">// Recycling of tasks</span>
<a name="l00590"></a>00590 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00591"></a>00591
<a name="l00593"></a>00593
<a name="l00599"></a><a class="code" href="a00311.html#a67a79e18f62b43a623a00cfbd76db4c">00599</a> <span class="keywordtype">void</span> recycle_as_continuation() {
<a name="l00600"></a>00600 __TBB_ASSERT( prefix().state==executing, <span class="stringliteral">"execute not running?"</span> );
<a name="l00601"></a>00601 prefix().state = allocated;
<a name="l00602"></a>00602 }
<a name="l00603"></a>00603
<a name="l00605"></a>00605
<a name="l00607"></a><a class="code" href="a00311.html#3b290d14109704e2b69dc1ac980a7a76">00607</a> <span class="keywordtype">void</span> recycle_as_safe_continuation() {
<a name="l00608"></a>00608 __TBB_ASSERT( prefix().state==executing, <span class="stringliteral">"execute not running?"</span> );
<a name="l00609"></a>00609 prefix().state = recycle;
<a name="l00610"></a>00610 }
<a name="l00611"></a>00611
<a name="l00613"></a><a class="code" href="a00311.html#db399855177438bbc9cc61d508dae8d2">00613</a> <span class="keywordtype">void</span> recycle_as_child_of( <a class="code" href="a00311.html">task</a>& new_parent ) {
<a name="l00614"></a>00614 internal::task_prefix& p = prefix();
<a name="l00615"></a>00615 __TBB_ASSERT( prefix().state==executing||prefix().state==allocated, <span class="stringliteral">"execute not running, or already recycled"</span> );
<a name="l00616"></a>00616 __TBB_ASSERT( prefix().ref_count==0, <span class="stringliteral">"no child tasks allowed when recycled as a child"</span> );
<a name="l00617"></a>00617 __TBB_ASSERT( p.parent==NULL, <span class="stringliteral">"parent must be null"</span> );
<a name="l00618"></a>00618 __TBB_ASSERT( new_parent.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().state<=recycle, <span class="stringliteral">"corrupt parent's state"</span> );
<a name="l00619"></a>00619 __TBB_ASSERT( new_parent.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().state!=freed, <span class="stringliteral">"parent already freed"</span> );
<a name="l00620"></a>00620 p.state = allocated;
<a name="l00621"></a>00621 p.parent = &new_parent;
<a name="l00622"></a>00622 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00623"></a>00623 <span class="preprocessor"></span> p.<a class="code" href="a00311.html#d8c36a93f3972590fbb65ff1cef3173b">context</a> = new_parent.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().context;
<a name="l00624"></a>00624 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00625"></a>00625 }
<a name="l00626"></a>00626
<a name="l00628"></a>00628
<a name="l00629"></a><a class="code" href="a00311.html#4f1be9bbcdb487830dbe298b68d85144">00629</a> <span class="keywordtype">void</span> recycle_to_reexecute() {
<a name="l00630"></a>00630 __TBB_ASSERT( prefix().state==executing, <span class="stringliteral">"execute not running, or already recycled"</span> );
<a name="l00631"></a>00631 __TBB_ASSERT( prefix().ref_count==0, <span class="stringliteral">"no child tasks allowed when recycled for reexecution"</span> );
<a name="l00632"></a>00632 prefix().state = reexecute;
<a name="l00633"></a>00633 }
<a name="l00634"></a>00634
<a name="l00635"></a>00635 <span class="comment">// All depth-related methods are obsolete, and are retained for the sake</span>
<a name="l00636"></a>00636 <span class="comment">// of backward source compatibility only</span>
<a name="l00637"></a>00637 intptr_t depth()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 0;}
<a name="l00638"></a>00638 <span class="keywordtype">void</span> set_depth( intptr_t ) {}
<a name="l00639"></a>00639 <span class="keywordtype">void</span> add_to_depth( <span class="keywordtype">int</span> ) {}
<a name="l00640"></a>00640
<a name="l00641"></a>00641
<a name="l00642"></a>00642 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00643"></a>00643 <span class="comment">// Spawning and blocking</span>
<a name="l00644"></a>00644 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00645"></a>00645
<a name="l00647"></a><a class="code" href="a00311.html#06a4206a57e8e12a439b14d6d41cfd92">00647</a> <span class="keywordtype">void</span> set_ref_count( <span class="keywordtype">int</span> count ) {
<a name="l00648"></a>00648 <span class="preprocessor">#if TBB_USE_THREADING_TOOLS||TBB_USE_ASSERT</span>
<a name="l00649"></a>00649 <span class="preprocessor"></span> internal_set_ref_count(count);
<a name="l00650"></a>00650 <span class="preprocessor">#else</span>
<a name="l00651"></a>00651 <span class="preprocessor"></span> prefix().ref_count = count;
<a name="l00652"></a>00652 <span class="preprocessor">#endif </span><span class="comment">/* TBB_USE_THREADING_TOOLS||TBB_USE_ASSERT */</span>
<a name="l00653"></a>00653 }
<a name="l00654"></a>00654
<a name="l00656"></a>00656
<a name="l00657"></a><a class="code" href="a00311.html#f5fb43c7ad0de5a4b95703cebc39e345">00657</a> <span class="keywordtype">void</span> increment_ref_count() {
<a name="l00658"></a>00658 __TBB_FetchAndIncrementWacquire( &prefix().ref_count );
<a name="l00659"></a>00659 }
<a name="l00660"></a>00660
<a name="l00662"></a>00662
<a name="l00663"></a><a class="code" href="a00311.html#ef4680f5c148020c5e7e43ddef44cd5d">00663</a> <span class="keywordtype">int</span> decrement_ref_count() {
<a name="l00664"></a>00664 <span class="preprocessor">#if TBB_USE_THREADING_TOOLS||TBB_USE_ASSERT</span>
<a name="l00665"></a>00665 <span class="preprocessor"></span> <span class="keywordflow">return</span> int(internal_decrement_ref_count());
<a name="l00666"></a>00666 <span class="preprocessor">#else</span>
<a name="l00667"></a>00667 <span class="preprocessor"></span> <span class="keywordflow">return</span> int(__TBB_FetchAndDecrementWrelease( &prefix().ref_count ))-1;
<a name="l00668"></a>00668 <span class="preprocessor">#endif </span><span class="comment">/* TBB_USE_THREADING_TOOLS||TBB_USE_ASSERT */</span>
<a name="l00669"></a>00669 }
<a name="l00670"></a>00670
<a name="l00672"></a>00672 <span class="keyword">using</span> task_base::spawn;
<a name="l00673"></a>00673
<a name="l00675"></a><a class="code" href="a00311.html#3ce28ca9baa771cfc37ecd72e69c4f3c">00675</a> <span class="keywordtype">void</span> spawn_and_wait_for_all( <a class="code" href="a00311.html">task</a>& child ) {
<a name="l00676"></a>00676 prefix().owner->wait_for_all( *<span class="keyword">this</span>, &child );
<a name="l00677"></a>00677 }
<a name="l00678"></a>00678
<a name="l00680"></a>00680 <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD spawn_and_wait_for_all( <a class="code" href="a00315.html">task_list</a>& list );
<a name="l00681"></a>00681
<a name="l00683"></a><a class="code" href="a00311.html#ce8ce689c26a4ddf343829bc3c73290a">00683</a> <span class="keyword">static</span> <span class="keywordtype">void</span> spawn_root_and_wait( <a class="code" href="a00311.html">task</a>& root ) {
<a name="l00684"></a>00684 root.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().owner->spawn_root_and_wait( root, root.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().next );
<a name="l00685"></a>00685 }
<a name="l00686"></a>00686
<a name="l00688"></a>00688
<a name="l00690"></a>00690 <span class="keyword">static</span> <span class="keywordtype">void</span> spawn_root_and_wait( <a class="code" href="a00315.html">task_list</a>& root_list );
<a name="l00691"></a>00691
<a name="l00693"></a>00693
<a name="l00694"></a><a class="code" href="a00311.html#53d2615ad9c38859b4c8080936600283">00694</a> <span class="keywordtype">void</span> wait_for_all() {
<a name="l00695"></a>00695 prefix().owner->wait_for_all( *<span class="keyword">this</span>, NULL );
<a name="l00696"></a>00696 }
<a name="l00697"></a>00697
<a name="l00699"></a>00699 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00700"></a>00700 <span class="preprocessor"></span>
<a name="l00710"></a>00710 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00711"></a><a class="code" href="a00311.html#8365d063c0cc9d7bd616bca47256b93c">00711</a> <span class="keyword">static</span> <span class="keywordtype">void</span> enqueue( <a class="code" href="a00311.html">task</a>& t ) {
<a name="l00712"></a>00712 t.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().owner->enqueue( t, NULL );
<a name="l00713"></a>00713 }
<a name="l00714"></a>00714
<a name="l00715"></a>00715 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00717"></a><a class="code" href="a00311.html#fe6bf6aaf84e664134fabb6c4f409ea9">00717</a> <span class="preprocessor"> static void enqueue( task& t, priority_t p ) {</span>
<a name="l00718"></a>00718 <span class="preprocessor"></span> __TBB_ASSERT( p == priority_low || p == priority_normal || p == priority_high, <span class="stringliteral">"Invalid priority level value"</span> );
<a name="l00719"></a>00719 t.prefix().owner->enqueue( t, (<span class="keywordtype">void</span>*)p );
<a name="l00720"></a>00720 }
<a name="l00721"></a>00721 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00722"></a>00722
<a name="l00724"></a>00724 <span class="keyword">static</span> <a class="code" href="a00311.html">task</a>& __TBB_EXPORTED_FUNC <span class="keyword">self</span>();
<a name="l00725"></a>00725
<a name="l00727"></a><a class="code" href="a00311.html#314e98ee4347ccec83efcb9ee22e8596">00727</a> <a class="code" href="a00311.html">task</a>* parent()<span class="keyword"> const </span>{<span class="keywordflow">return</span> prefix().parent;}
<a name="l00728"></a>00728
<a name="l00730"></a><a class="code" href="a00311.html#d2eaf79fcaa3ae473e3bd3f44bd8a464">00730</a> <span class="keywordtype">void</span> set_parent(<a class="code" href="a00311.html">task</a>* p) {
<a name="l00731"></a>00731 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00732"></a>00732 <span class="preprocessor"></span> __TBB_ASSERT(prefix().context == p-><a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().context, <span class="stringliteral">"The tasks must be in the same context"</span>);
<a name="l00733"></a>00733 <span class="preprocessor">#endif</span>
<a name="l00734"></a>00734 <span class="preprocessor"></span> prefix().parent = p;
<a name="l00735"></a>00735 }
<a name="l00736"></a>00736
<a name="l00737"></a>00737 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00739"></a>00739 <span class="preprocessor"></span>
<a name="l00740"></a><a class="code" href="a00311.html#d8c36a93f3972590fbb65ff1cef3173b">00740</a> <span class="preprocessor"> task_group_context* context() {return prefix().context;}</span>
<a name="l00741"></a>00741 <span class="preprocessor"></span>
<a name="l00743"></a><a class="code" href="a00311.html#5987123486afca36ddebb9e2a8b7779a">00743</a> <a class="code" href="a00314.html">task_group_context</a>* group () { <span class="keywordflow">return</span> prefix().<a class="code" href="a00311.html#d8c36a93f3972590fbb65ff1cef3173b">context</a>; }
<a name="l00744"></a>00744 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00745"></a>00745
<a name="l00747"></a><a class="code" href="a00311.html#f9169402702f56bf519448aaf34450aa">00747</a> <span class="keywordtype">bool</span> is_stolen_task()<span class="keyword"> const </span>{
<a name="l00748"></a>00748 <span class="keywordflow">return</span> (prefix().extra_state & 0x80)!=0;
<a name="l00749"></a>00749 }
<a name="l00750"></a>00750
<a name="l00751"></a>00751 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00752"></a>00752 <span class="comment">// Debugging</span>
<a name="l00753"></a>00753 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00754"></a>00754
<a name="l00756"></a><a class="code" href="a00311.html#0af7b2d7e6e8b4333b2accfce3dfb374">00756</a> <a class="code" href="a00311.html#4a3c415562d17905390ea5b49d12293e">state_type</a> state()<span class="keyword"> const </span>{<span class="keywordflow">return</span> <a class="code" href="a00311.html#4a3c415562d17905390ea5b49d12293e">state_type</a>(prefix().state);}
<a name="l00757"></a>00757
<a name="l00759"></a><a class="code" href="a00311.html#ad774f55eaec008ae02b236423209ced">00759</a> <span class="keywordtype">int</span> ref_count()<span class="keyword"> const </span>{
<a name="l00760"></a>00760 <span class="preprocessor">#if TBB_USE_ASSERT</span>
<a name="l00761"></a>00761 <span class="preprocessor"></span> internal::reference_count ref_count_ = prefix().ref_count;
<a name="l00762"></a>00762 __TBB_ASSERT( ref_count_==<span class="keywordtype">int</span>(ref_count_), <span class="stringliteral">"integer overflow error"</span>);
<a name="l00763"></a>00763 <span class="preprocessor">#endif</span>
<a name="l00764"></a>00764 <span class="preprocessor"></span> <span class="keywordflow">return</span> int(prefix().ref_count);
<a name="l00765"></a>00765 }
<a name="l00766"></a>00766
<a name="l00768"></a>00768 <span class="keywordtype">bool</span> __TBB_EXPORTED_METHOD is_owned_by_current_thread() <span class="keyword">const</span>;
<a name="l00769"></a>00769
<a name="l00770"></a>00770 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00771"></a>00771 <span class="comment">// Affinity</span>
<a name="l00772"></a>00772 <span class="comment">//------------------------------------------------------------------------</span>
<a name="l00773"></a>00773
<a name="l00775"></a>00775
<a name="l00776"></a><a class="code" href="a00311.html#d61bb32389d3857bf7511d69beaafb76">00776</a> <span class="keyword">typedef</span> internal::affinity_id affinity_id;
<a name="l00777"></a>00777
<a name="l00779"></a><a class="code" href="a00311.html#dca19d7a45487a7d67a0db517e2b57c9">00779</a> <span class="keywordtype">void</span> set_affinity( affinity_id <span class="keywordtype">id</span> ) {prefix().affinity = id;}
<a name="l00780"></a>00780
<a name="l00782"></a><a class="code" href="a00311.html#3a920a56b0bcf2801518fb45b2c9d2be">00782</a> affinity_id affinity()<span class="keyword"> const </span>{<span class="keywordflow">return</span> prefix().affinity;}
<a name="l00783"></a>00783
<a name="l00785"></a>00785
<a name="l00789"></a>00789 <span class="keyword">virtual</span> <span class="keywordtype">void</span> __TBB_EXPORTED_METHOD note_affinity( affinity_id <span class="keywordtype">id</span> );
<a name="l00790"></a>00790
<a name="l00791"></a>00791 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00793"></a>00793 <span class="preprocessor"></span>
<a name="l00803"></a>00803 <span class="preprocessor"> void __TBB_EXPORTED_METHOD change_group ( task_group_context& ctx );</span>
<a name="l00804"></a>00804 <span class="preprocessor"></span>
<a name="l00806"></a>00806
<a name="l00807"></a><a class="code" href="a00311.html#0f3fb4aac549ab642022450a4bd13326">00807</a> <span class="keywordtype">bool</span> cancel_group_execution () { <span class="keywordflow">return</span> prefix().context->cancel_group_execution(); }
<a name="l00808"></a>00808
<a name="l00810"></a><a class="code" href="a00311.html#025f18118c057c4c8db87ff2ce8df975">00810</a> <span class="keywordtype">bool</span> is_cancelled ()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> prefix().context->is_group_execution_cancelled(); }
<a name="l00811"></a>00811 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00812"></a>00812
<a name="l00813"></a>00813 <span class="preprocessor">#if __TBB_TASK_PRIORITY</span>
<a name="l00815"></a><a class="code" href="a00311.html#9ac8d1542d67d9d80121ff986801ac26">00815</a> <span class="preprocessor"> void set_group_priority ( priority_t p ) { prefix().context->set_priority(p); }</span>
<a name="l00816"></a>00816 <span class="preprocessor"></span>
<a name="l00818"></a><a class="code" href="a00311.html#e1d969a1ccab6796e3b8b2c1a5be33d2">00818</a> priority_t group_priority ()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> prefix().context->priority(); }
<a name="l00819"></a>00819
<a name="l00820"></a>00820 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_PRIORITY */</span>
<a name="l00821"></a>00821
<a name="l00822"></a>00822 <span class="keyword">private</span>:
<a name="l00823"></a>00823 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00312.html">interface5::internal::task_base</a>;
<a name="l00824"></a>00824 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00315.html">task_list</a>;
<a name="l00825"></a>00825 <span class="keyword">friend</span> <span class="keyword">class </span>internal::scheduler;
<a name="l00826"></a>00826 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_root_proxy;
<a name="l00827"></a>00827 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00828"></a>00828 <span class="preprocessor"></span> <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_root_with_context_proxy;
<a name="l00829"></a>00829 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00830"></a>00830 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_continuation_proxy;
<a name="l00831"></a>00831 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_child_proxy;
<a name="l00832"></a>00832 <span class="keyword">friend</span> <span class="keyword">class </span>internal::allocate_additional_child_of_proxy;
<a name="l00833"></a>00833
<a name="l00835"></a>00835
<a name="l00836"></a>00836 internal::task_prefix& prefix( internal::version_tag* = NULL )<span class="keyword"> const </span>{
<a name="l00837"></a>00837 <span class="keywordflow">return</span> reinterpret_cast<internal::task_prefix*>(const_cast<task*>(<span class="keyword">this</span>))[-1];
<a name="l00838"></a>00838 }
<a name="l00839"></a>00839 }; <span class="comment">// class task</span>
<a name="l00840"></a>00840
<a name="l00842"></a>00842
<a name="l00843"></a><a class="code" href="a00254.html">00843</a> <span class="keyword">class </span><a class="code" href="a00254.html">empty_task</a>: <span class="keyword">public</span> <a class="code" href="a00311.html">task</a> {
<a name="l00844"></a>00844 <span class="comment">/*override*/</span> <a class="code" href="a00311.html">task</a>* execute() {
<a name="l00845"></a>00845 <span class="keywordflow">return</span> NULL;
<a name="l00846"></a>00846 }
<a name="l00847"></a>00847 };
<a name="l00848"></a>00848
<a name="l00850"></a>00850
<a name="l00852"></a><a class="code" href="a00315.html">00852</a> <span class="keyword">class </span><a class="code" href="a00315.html">task_list</a>: internal::no_copy {
<a name="l00853"></a>00853 <span class="keyword">private</span>:
<a name="l00854"></a>00854 <a class="code" href="a00311.html">task</a>* first;
<a name="l00855"></a>00855 <a class="code" href="a00311.html">task</a>** next_ptr;
<a name="l00856"></a>00856 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00311.html">task</a>;
<a name="l00857"></a>00857 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="a00312.html">interface5::internal::task_base</a>;
<a name="l00858"></a>00858 <span class="keyword">public</span>:
<a name="l00860"></a><a class="code" href="a00315.html#416341c2047eaef50417b41eaf7e9de6">00860</a> <a class="code" href="a00315.html#416341c2047eaef50417b41eaf7e9de6">task_list</a>() : first(NULL), next_ptr(&first) {}
<a name="l00861"></a>00861
<a name="l00863"></a><a class="code" href="a00315.html#6d438f1499a02db1e59c24ab6043e5ba">00863</a> <a class="code" href="a00315.html#6d438f1499a02db1e59c24ab6043e5ba">~task_list</a>() {}
<a name="l00864"></a>00864
<a name="l00866"></a><a class="code" href="a00315.html#f3ac31e092814b90929f81bb30441959">00866</a> <span class="keywordtype">bool</span> <a class="code" href="a00315.html#f3ac31e092814b90929f81bb30441959">empty</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> !first;}
<a name="l00867"></a>00867
<a name="l00869"></a><a class="code" href="a00315.html#4cd34756bc4763dafb8c84838a0124ff">00869</a> <span class="keywordtype">void</span> <a class="code" href="a00315.html#4cd34756bc4763dafb8c84838a0124ff">push_back</a>( <a class="code" href="a00311.html">task</a>& <a class="code" href="a00311.html">task</a> ) {
<a name="l00870"></a>00870 task.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().next = NULL;
<a name="l00871"></a>00871 *next_ptr = &task;
<a name="l00872"></a>00872 next_ptr = &task.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().next;
<a name="l00873"></a>00873 }
<a name="l00874"></a>00874
<a name="l00876"></a><a class="code" href="a00315.html#5fe85df5ed524418389d34051750347d">00876</a> <a class="code" href="a00311.html">task</a>& <a class="code" href="a00315.html#5fe85df5ed524418389d34051750347d">pop_front</a>() {
<a name="l00877"></a>00877 __TBB_ASSERT( !<a class="code" href="a00315.html#f3ac31e092814b90929f81bb30441959">empty</a>(), <span class="stringliteral">"attempt to pop item from empty task_list"</span> );
<a name="l00878"></a>00878 <a class="code" href="a00311.html">task</a>* result = first;
<a name="l00879"></a>00879 first = result-><a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().next;
<a name="l00880"></a>00880 <span class="keywordflow">if</span>( !first ) next_ptr = &first;
<a name="l00881"></a>00881 <span class="keywordflow">return</span> *result;
<a name="l00882"></a>00882 }
<a name="l00883"></a>00883
<a name="l00885"></a><a class="code" href="a00315.html#fce446ee13e025969945328f3ff59b95">00885</a> <span class="keywordtype">void</span> <a class="code" href="a00315.html#fce446ee13e025969945328f3ff59b95">clear</a>() {
<a name="l00886"></a>00886 first=NULL;
<a name="l00887"></a>00887 next_ptr=&first;
<a name="l00888"></a>00888 }
<a name="l00889"></a>00889 };
<a name="l00890"></a>00890
<a name="l00891"></a>00891 <span class="keyword">inline</span> <span class="keywordtype">void</span> interface5::internal::task_base::spawn( task& t ) {
<a name="l00892"></a>00892 t.<a class="code" href="a00311.html#ac578940848e9dc8b4f1f2bcf17b627d">prefix</a>().owner->spawn( t, t.prefix().next );
<a name="l00893"></a>00893 }
<a name="l00894"></a>00894
<a name="l00895"></a>00895 <span class="keyword">inline</span> <span class="keywordtype">void</span> interface5::internal::task_base::spawn( task_list& list ) {
<a name="l00896"></a>00896 <span class="keywordflow">if</span>( task* t = list.first ) {
<a name="l00897"></a>00897 t->prefix().owner->spawn( *t, *list.next_ptr );
<a name="l00898"></a>00898 list.clear();
<a name="l00899"></a>00899 }
<a name="l00900"></a>00900 }
<a name="l00901"></a>00901
<a name="l00902"></a><a class="code" href="a00311.html#c33c7edbaec67aa8a56f48986a9dc69f">00902</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="a00311.html#ce8ce689c26a4ddf343829bc3c73290a">task::spawn_root_and_wait</a>( <a class="code" href="a00315.html">task_list</a>& root_list ) {
<a name="l00903"></a>00903 <span class="keywordflow">if</span>( <a class="code" href="a00311.html">task</a>* t = root_list.<a class="code" href="a00315.html#78fcc389819ee34427d510f7d8cb8b1e">first</a> ) {
<a name="l00904"></a>00904 t->prefix().owner->spawn_root_and_wait( *t, *root_list.<a class="code" href="a00315.html#21553a32bcd08f980aa28f61254307da">next_ptr</a> );
<a name="l00905"></a>00905 root_list.<a class="code" href="a00315.html#fce446ee13e025969945328f3ff59b95">clear</a>();
<a name="l00906"></a>00906 }
<a name="l00907"></a>00907 }
<a name="l00908"></a>00908
<a name="l00909"></a>00909 } <span class="comment">// namespace tbb</span>
<a name="l00910"></a>00910
<a name="l00911"></a>00911 <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& ) {
<a name="l00912"></a>00912 <span class="keywordflow">return</span> &tbb::internal::allocate_root_proxy::allocate(bytes);
<a name="l00913"></a>00913 }
<a name="l00914"></a>00914
<a name="l00915"></a>00915 <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& ) {
<a name="l00916"></a>00916 tbb::internal::allocate_root_proxy::free( *static_cast<tbb::task*>(task) );
<a name="l00917"></a>00917 }
<a name="l00918"></a>00918
<a name="l00919"></a>00919 <span class="preprocessor">#if __TBB_TASK_GROUP_CONTEXT</span>
<a name="l00920"></a>00920 <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& p ) {
<a name="l00921"></a>00921 <span class="keywordflow">return</span> &p.allocate(bytes);
<a name="l00922"></a>00922 }
<a name="l00923"></a>00923
<a name="l00924"></a>00924 <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& p ) {
<a name="l00925"></a>00925 p.free( *static_cast<tbb::task*>(task) );
<a name="l00926"></a>00926 }
<a name="l00927"></a>00927 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_TASK_GROUP_CONTEXT */</span>
<a name="l00928"></a>00928
<a name="l00929"></a>00929 <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& p ) {
<a name="l00930"></a>00930 <span class="keywordflow">return</span> &p.allocate(bytes);
<a name="l00931"></a>00931 }
<a name="l00932"></a>00932
<a name="l00933"></a>00933 <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& p ) {
<a name="l00934"></a>00934 p.free( *static_cast<tbb::task*>(task) );
<a name="l00935"></a>00935 }
<a name="l00936"></a>00936
<a name="l00937"></a>00937 <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& p ) {
<a name="l00938"></a>00938 <span class="keywordflow">return</span> &p.allocate(bytes);
<a name="l00939"></a>00939 }
<a name="l00940"></a>00940
<a name="l00941"></a>00941 <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& p ) {
<a name="l00942"></a>00942 p.free( *static_cast<tbb::task*>(task) );
<a name="l00943"></a>00943 }
<a name="l00944"></a>00944
<a name="l00945"></a>00945 <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& p ) {
<a name="l00946"></a>00946 <span class="keywordflow">return</span> &p.allocate(bytes);
<a name="l00947"></a>00947 }
<a name="l00948"></a>00948
<a name="l00949"></a>00949 <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& p ) {
<a name="l00950"></a>00950 p.free( *static_cast<tbb::task*>(task) );
<a name="l00951"></a>00951 }
<a name="l00952"></a>00952
<a name="l00953"></a>00953 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_task_H */</span>
</pre></div><hr>
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