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<h3>
Ben Gamari pushed to branch wip/gc/parallel-marking
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cfd77aba805f8bc8e81a39a4f3b67ea8b2c23ea4">cfd77aba</a></strong>
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<span>by Ben Gamari</span>
<i>at 2020-08-10T22:25:22-04:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">nonmoving: Parallel marking?
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<h4>3 changed files:</h4>
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<a href="#b4a38dad10ba126e05a0b6adc99aa0c2eb742875">
rts/sm/NonMoving.c
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<li class="file-stats">
<a href="#4f5ba3ce18ccc17ad367193f379aa61f4c9180a0">
rts/sm/NonMovingMark.c
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<a href="#bcae703553e66a4a73c4aa4a930513cc4aa923cf">
rts/sm/NonMovingMark.h
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<h4>Changes:</h4>
<li id="b4a38dad10ba126e05a0b6adc99aa0c2eb742875">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cfd77aba805f8bc8e81a39a4f3b67ea8b2c23ea4#b4a38dad10ba126e05a0b6adc99aa0c2eb742875"><strong>rts/sm/NonMoving.c</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -714,6 +714,7 @@ void nonmovingInit(void)</td>
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<pre style="margin: 0;"> <span id="LC714" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingHeap</span><span class="p">.</span><span class="n" style="color: #333;">allocators</span><span class="p">[</span><span class="n" style="color: #333;">i</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">alloc_nonmoving_allocator</span><span class="p">(</span><span class="n" style="color: #333;">n_capabilities</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC715" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC716" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingMarkInitUpdRemSet</span><span class="p">();</span></span>
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<pre style="margin: 0;">+<span id="LC717" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingInitMarkState</span><span class="p">();</span></span>
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<pre style="margin: 0;"> <span id="LC718" class="line" lang="c"><span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC719" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC720" class="line" lang="c"><span class="c1" style="color: #998; font-style: italic;">// Stop any nonmoving collection in preparation for RTS shutdown.</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="915" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="916" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -915,9 +916,9 @@ void nonmovingCollect(StgWeak **dead_weaks, StgTSO **resurrected_threads)</td>
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<pre style="margin: 0;"> <span id="LC916" class="line" lang="c"> <span class="n" style="color: #333;">ASSERT</span><span class="p">(</span><span class="n" style="color: #333;">nonmoving_marked_compact_objects</span> <span class="o" style="font-weight: 600;">==</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC917" class="line" lang="c"> <span class="n" style="color: #333;">ASSERT</span><span class="p">(</span><span class="n" style="color: #333;">n_nonmoving_marked_compact_blocks</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC918" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC918" class="line" lang="c"> <span class="n" style="color: #333;"><span class="idiff left">MarkQueue</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">*</span></span><span class="n" style="color: #333;"><span class="idiff">mark_queue</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">stgMallocBytes</span></span><span class="p"><span class="idiff">(</span></span><span class="k" style="font-weight: 600;"><span class="idiff">sizeof</span></span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">MarkQueue</span></span><span class="p"><span class="idiff">),</span></span><span class="idiff"> </span><span class="s" style="color: #d14;"><span class="idiff">"mark queue"</span></span><span class="p"><span class="idiff right">);</span></span></span>
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<pre style="margin: 0;">-<span id="LC919" class="line" lang="c"> <span class="n" style="color: #333;"><span class="idiff left">initMarkQueue</span></span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff right">mark_queue</span></span><span class="p">);</span></span>
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<pre style="margin: 0;">-<span id="LC920" class="line" lang="c"> <span class="n" style="color: #333;"><span class="idiff left">current_mark_queue</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">mark_queue</span></span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC919" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">// First initialize a MarkQueue for the leader thread:</span></span></span>
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<pre style="margin: 0;">+<span id="LC920" class="line" lang="c"> <span class="n" style="color: #333;"><span class="idiff left">startMarkThreads</span></span><span class="p"><span class="idiff">(</span></span><span class="mi" style="color: #099;"><span class="idiff right">1</span></span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC921" class="line" lang="c"> <span class="n" style="color: #333;"><span class="idiff left">MarkQueue</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">*</span></span><span class="n" style="color: #333;"><span class="idiff">mark_queue</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">mark_state</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">queues</span></span><span class="p"><span class="idiff">[</span></span><span class="mi" style="color: #099;"><span class="idiff">0</span></span><span class="p"><span class="idiff right">]</span>;</span></span>
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<pre style="margin: 0;"> <span id="LC922" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC923" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Mark roots</span></span>
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923
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924
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<pre style="margin: 0;"> <span id="LC924" class="line" lang="c"> <span class="n" style="color: #333;">trace</span><span class="p">(</span><span class="n" style="color: #333;">TRACE_nonmoving_gc</span><span class="p">,</span> <span class="s" style="color: #d14;">"Marking roots for nonmoving GC"</span><span class="p">);</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="981" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -981,6 +982,8 @@ void nonmovingCollect(StgWeak **dead_weaks, StgTSO **resurrected_threads)</td>
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981
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982
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<pre style="margin: 0;"> <span id="LC982" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingConcurrentMark</span><span class="p">,</span> <span class="n" style="color: #333;">mark_queue</span><span class="p">)</span> <span class="o" style="font-weight: 600;">!=</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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982
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983
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<pre style="margin: 0;"> <span id="LC983" class="line" lang="c"> <span class="n" style="color: #333;">barf</span><span class="p">(</span><span class="s" style="color: #d14;">"nonmovingCollect: failed to spawn mark thread: %s"</span><span class="p">,</span> <span class="n" style="color: #333;">strerror</span><span class="p">(</span><span class="n" style="color: #333;">errno</span><span class="p">));</span></span>
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983
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984
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<pre style="margin: 0;"> <span id="LC984" class="line" lang="c"> <span class="p">}</span></span>
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985
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<pre style="margin: 0;">+<span id="LC985" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Start the mark worker threads...</span></span>
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986
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<pre style="margin: 0;">+<span id="LC986" class="line" lang="c"> <span class="n" style="color: #333;">startMarkThreads</span><span class="p">(</span><span class="mi" style="color: #099;">3</span><span class="p">);</span></span>
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984
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987
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<pre style="margin: 0;"> <span id="LC987" class="line" lang="c"> <span class="p">}</span> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>
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985
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988
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<pre style="margin: 0;"> <span id="LC988" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingConcurrentMark</span><span class="p">(</span><span class="n" style="color: #333;">mark_queue</span><span class="p">);</span></span>
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986
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989
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<pre style="margin: 0;"> <span id="LC989" class="line" lang="c"> <span class="p">}</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="998" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1001" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -998,7 +1001,7 @@ static void nonmovingMarkThreadsWeaks(MarkQueue *mark_queue)</td>
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998
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1001
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<pre style="margin: 0;"> <span id="LC1001" class="line" lang="c"><span class="p">{</span></span>
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999
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1002
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<pre style="margin: 0;"> <span id="LC1002" class="line" lang="c"> <span class="k" style="font-weight: 600;">while</span> <span class="p">(</span><span class="nb" style="color: #0086b3;">true</span><span class="p">)</span> <span class="p">{</span></span>
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1000
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1003
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<pre style="margin: 0;"> <span id="LC1003" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Propagate marks</span></span>
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1001
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<pre style="margin: 0;">-<span id="LC1001" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingMark</span><span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff right">mark_queue</span></span><span class="p">);</span></span>
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1004
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<pre style="margin: 0;">+<span id="LC1004" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingMark<span class="idiff left">Leader</span></span><span class="p"><span class="idiff right">(</span>);</span></span>
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1002
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1005
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<pre style="margin: 0;"> <span id="LC1005" class="line" lang="c"></span>
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1003
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1006
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<pre style="margin: 0;"> <span id="LC1006" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Tidy threads and weaks</span></span>
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1004
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1007
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<pre style="margin: 0;"> <span id="LC1007" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingTidyThreads</span><span class="p">();</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1102" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1105" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1102,7 +1105,7 @@ static void nonmovingMark_(MarkQueue *mark_queue, StgWeak **dead_weaks, StgTSO *</td>
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1102
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1105
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<pre style="margin: 0;"> <span id="LC1105" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Do last marking of weak pointers</span></span>
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1103
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1106
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<pre style="margin: 0;"> <span id="LC1106" class="line" lang="c"> <span class="k" style="font-weight: 600;">while</span> <span class="p">(</span><span class="nb" style="color: #0086b3;">true</span><span class="p">)</span> <span class="p">{</span></span>
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1104
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1107
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<pre style="margin: 0;"> <span id="LC1107" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Propagate marks</span></span>
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1105
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<pre style="margin: 0;">-<span id="LC1105" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingMark</span><span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff right">mark_queue</span></span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC1108" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingMark<span class="idiff left">Leader</span></span><span class="p"><span class="idiff right">(</span>);</span></span>
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1109
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<pre style="margin: 0;"> <span id="LC1109" class="line" lang="c"></span>
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1110
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<pre style="margin: 0;"> <span id="LC1110" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">nonmovingTidyWeaks</span><span class="p">(</span><span class="n" style="color: #333;">mark_queue</span><span class="p">))</span></span>
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1108
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1111
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<pre style="margin: 0;"> <span id="LC1111" class="line" lang="c"> <span class="k" style="font-weight: 600;">break</span><span class="p">;</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1176,9 +1179,8 @@ static void nonmovingMark_(MarkQueue *mark_queue, StgWeak **dead_weaks, StgTSO *</td>
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1179
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<pre style="margin: 0;"> <span id="LC1179" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingFinishFlush</span><span class="p">(</span><span class="n" style="color: #333;">task</span><span class="p">);</span></span>
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1177
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1180
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<pre style="margin: 0;"> <span id="LC1180" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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1178
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1181
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<pre style="margin: 0;"> <span id="LC1181" class="line" lang="c"></span>
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1179
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<pre style="margin: 0;">-<span id="LC1179" class="line" lang="c"> <span class="n" style="color: #333;">current_mark_queue</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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1180
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<pre style="margin: 0;">-<span id="LC1180" class="line" lang="c"> <span class="n" style="color: #333;">freeMarkQueue</span><span class="p">(</span><span class="n" style="color: #333;">mark_queue</span><span class="p">);</span></span>
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1181
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<pre style="margin: 0;">-<span id="LC1181" class="line" lang="c"> <span class="n" style="color: #333;">stgFree</span><span class="p">(</span><span class="n" style="color: #333;">mark_queue</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC1182" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// tear down the mark threads' state</span></span>
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<pre style="margin: 0;">+<span id="LC1183" class="line" lang="c"> <span class="n" style="color: #333;">stopMarkThreads</span><span class="p">();</span></span>
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1184
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<pre style="margin: 0;"> <span id="LC1184" class="line" lang="c"></span>
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1185
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<pre style="margin: 0;"> <span id="LC1185" class="line" lang="c"> <span class="n" style="color: #333;">oldest_gen</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">live_estimate</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nonmoving_live_words</span><span class="p">;</span></span>
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1186
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<pre style="margin: 0;"> <span id="LC1186" class="line" lang="c"> <span class="n" style="color: #333;">oldest_gen</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">n_old_blocks</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cfd77aba805f8bc8e81a39a4f3b67ea8b2c23ea4#4f5ba3ce18ccc17ad367193f379aa61f4c9180a0"><strong>rts/sm/NonMovingMark.c</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -24,6 +24,7 @@</td>
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<pre style="margin: 0;"> <span id="LC24" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "Stats.h"</span></span>
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<pre style="margin: 0;"> <span id="LC25" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "STM.h"</span></span>
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<pre style="margin: 0;"> <span id="LC26" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "MarkWeak.h"</span></span>
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<pre style="margin: 0;">+<span id="LC27" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "RtsUtils.h"</span></span>
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<pre style="margin: 0;"> <span id="LC28" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "sm/Storage.h"</span></span>
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<pre style="margin: 0;"> <span id="LC29" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "CNF.h"</span></span>
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<pre style="margin: 0;"> <span id="LC30" class="line" lang="c"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -117,6 +118,8 @@ StgWeak *nonmoving_weak_ptr_list = NULL;</td>
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<pre style="margin: 0;"> <span id="LC118" class="line" lang="c"><span class="n" style="color: #333;">StgIndStatic</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">debug_caf_list_snapshot</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">StgIndStatic</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">END_OF_CAF_LIST</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC119" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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<pre style="margin: 0;"> <span id="LC120" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC121" class="line" lang="c"><span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">MarkState</span> <span class="n" style="color: #333;">mark_state</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC122" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC123" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* Note [Update remembered set]</span></span>
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<pre style="margin: 0;"> <span id="LC124" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
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<pre style="margin: 0;"> <span id="LC125" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * The concurrent non-moving collector uses a remembered set to ensure</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -365,7 +368,6 @@ upd_rem_set_push_gc(UpdRemSet *rs, MarkQueueEnt *ent)</td>
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<pre style="margin: 0;"> <span id="LC368" class="line" lang="c"> <span class="n" style="color: #333;">markQueueBlockPush</span><span class="p">(</span><span class="n" style="color: #333;">rs</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">block</span><span class="p">,</span> <span class="n" style="color: #333;">ent</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC369" class="line" lang="c"><span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC370" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC368" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC371" class="line" lang="c"><span class="n" style="color: #333;">STATIC_INLINE</span> <span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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<pre style="margin: 0;"> <span id="LC372" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">mark_queue_push</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">q</span><span class="p">,</span> <span class="k" style="font-weight: 600;">const</span> <span class="n" style="color: #333;">MarkQueueEnt</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">ent</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC373" class="line" lang="c"><span class="p">{</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -375,7 +377,15 @@ mark_queue_push (MarkQueue *q, const MarkQueueEnt *ent)</td>
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<pre style="margin: 0;"> <span id="LC377" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Allocate a fresh block.</span></span>
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<pre style="margin: 0;"> <span id="LC378" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_SM_LOCK</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC379" class="line" lang="c"> <span class="n" style="color: #333;">bdescr</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">bd</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">allocGroup</span><span class="p">(</span><span class="n" style="color: #333;">MARK_QUEUE_BLOCKS</span><span class="p">);</span></span>
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<pre style="margin: 0;">-<span id="LC378" class="line" lang="c"> <span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">link</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">markQueueBlockBdescr</span><span class="p">(</span><span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC380" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC381" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// First try pushing onto local deque...</span></span>
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382
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<pre style="margin: 0;">+<span id="LC382" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">rest</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">pushWSDeque</span><span class="p">(</span><span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">rest</span><span class="p">,</span> <span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span><span class="p">))</span> <span class="p">{</span></span>
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383
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<pre style="margin: 0;">+<span id="LC383" class="line" lang="c"> <span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">link</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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384
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<pre style="margin: 0;">+<span id="LC384" class="line" lang="c"> <span class="p">}</span> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>
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385
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<pre style="margin: 0;">+<span id="LC385" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// deque overflowed. link onto the new block's list.</span></span>
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386
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<pre style="margin: 0;">+<span id="LC386" class="line" lang="c"> <span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">link</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">markQueueBlockBdescr</span><span class="p">(</span><span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span><span class="p">);</span></span>
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387
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<pre style="margin: 0;">+<span id="LC387" class="line" lang="c"> <span class="p">}</span></span>
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388
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<pre style="margin: 0;">+<span id="LC388" class="line" lang="c"></span>
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389
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<pre style="margin: 0;"> <span id="LC389" class="line" lang="c"> <span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">start</span><span class="p">;</span></span>
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380
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390
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<pre style="margin: 0;"> <span id="LC390" class="line" lang="c"> <span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">head</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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381
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391
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<pre style="margin: 0;"> <span id="LC391" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_SM_LOCK</span><span class="p">;</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="396" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -386,7 +396,7 @@ mark_queue_push (MarkQueue *q, const MarkQueueEnt *ent)</td>
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386
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396
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<pre style="margin: 0;"> <span id="LC396" class="line" lang="c"></span>
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387
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<pre style="margin: 0;"> <span id="LC397" class="line" lang="c"><span class="n" style="color: #333;">STATIC_INLINE</span> <span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">push</span><span class="p">(</span><span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">MarkContext</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">mc</span><span class="p">,</span> <span class="n" style="color: #333;">MarkQueueEnt</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">ent</span><span class="p">)</span> <span class="p">{</span></span>
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388
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398
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<pre style="margin: 0;"> <span id="LC398" class="line" lang="c"> <span class="k" style="font-weight: 600;">switch</span> <span class="p">(</span><span class="n" style="color: #333;">mc</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">kind</span><span class="p">)</span> <span class="p">{</span></span>
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389
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<pre style="margin: 0;">-<span id="LC389" class="line" lang="c"> <span class="k" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">MARK_CTX_IN_CONC_MARK</span><span class="p">:</span><span class="idiff left right"> </span></span>
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<pre style="margin: 0;">+<span id="LC399" class="line" lang="c"> <span class="k" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">MARK_CTX_IN_CONC_MARK</span><span class="p">:</span></span>
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390
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<pre style="margin: 0;"> <span id="LC400" class="line" lang="c"> <span class="n" style="color: #333;">mark_queue_push</span><span class="p">(</span><span class="n" style="color: #333;">mc</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">in_conc_mark</span><span class="p">.</span><span class="n" style="color: #333;">queue</span><span class="p">,</span> <span class="n" style="color: #333;">ent</span><span class="p">);</span></span>
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391
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401
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<pre style="margin: 0;"> <span id="LC401" class="line" lang="c"> <span class="k" style="font-weight: 600;">break</span><span class="p">;</span></span>
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392
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402
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<pre style="margin: 0;"> <span id="LC402" class="line" lang="c"> <span class="k" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">MARK_CTX_IN_MOVING_GC</span><span class="p">:</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="410" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="420" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -410,7 +420,7 @@ void nonmovingMarkInitUpdRemSet() {</td>
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410
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420
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<pre style="margin: 0;"> <span id="LC420" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if defined(THREADED_RTS) && defined(DEBUG)</span></span>
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<pre style="margin: 0;"> <span id="LC421" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">uint32_t</span> <span class="nf" style="color: #900; font-weight: 600;">markQueueLength</span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">q</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC422" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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<pre style="margin: 0;">-<span id="LC413" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">init_mark_queue<span class="idiff left right">_</span></span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC423" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">init_mark_queue</span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC424" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC425" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* Transfers the given capability's update-remembered set to the global</span></span>
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<pre style="margin: 0;"> <span id="LC426" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * remembered set. Must hold SM lock/allocation spinlock.</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -875,6 +885,17 @@ void markQueueAddRoot (MarkQueue* q, StgClosure** root)</td>
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<pre style="margin: 0;"> <span id="LC885" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Popping from the mark queue</span></span>
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<pre style="margin: 0;"> <span id="LC886" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *********************************************************/</span></span>
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<pre style="margin: 0;"> <span id="LC887" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC888" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="nf" style="color: #900; font-weight: 600;">try_stealing</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC889" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC890" class="line" lang="c"> <span class="k" style="font-weight: 600;">for</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">uint32_t</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;"><</span> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span><span class="p">;</span> <span class="n" style="color: #333;">i</span><span class="o" style="font-weight: 600;">++</span><span class="p">)</span> <span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC891" class="line" lang="c"> <span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">stealWSDeque</span><span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span><span class="p">[</span><span class="n" style="color: #333;">i</span><span class="p">]</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">rest</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC892" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC893" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="n" style="color: #333;">b</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC894" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC895" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC896" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC897" class="line" lang="c"><span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC898" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC899" class="line" lang="c"><span class="c1" style="color: #998; font-style: italic;">// Returns invalid MarkQueueEnt if queue is empty.</span></span>
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<pre style="margin: 0;"> <span id="LC900" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="n" style="color: #333;">MarkQueueEnt</span> <span class="nf" style="color: #900; font-weight: 600;">markQueuePop_</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">q</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC901" class="line" lang="c"><span class="p">{</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -887,19 +908,41 @@ again:</td>
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<pre style="margin: 0;"> <span id="LC908" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">top</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">head</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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888
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909
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<pre style="margin: 0;"> <span id="LC909" class="line" lang="c"> <span class="n" style="color: #333;">bdescr</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">old_block</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">markQueueBlockBdescr</span><span class="p">(</span><span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span><span class="p">);</span></span>
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889
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910
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<pre style="margin: 0;"> <span id="LC910" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Is this the only block in the queue?</span></span>
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890
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<pre style="margin: 0;">-<span id="LC890" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">old_block</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">link</span> <span class="o" style="font-weight: 600;">==</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
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891
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<pre style="margin: 0;">-<span id="LC891" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Yes, therefore queue is empty...</span></span>
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892
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<pre style="margin: 0;">-<span id="LC892" class="line" lang="c"> <span class="n" style="color: #333;">MarkQueueEnt</span> <span class="n" style="color: #333;">none</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">{</span> <span class="p">.</span><span class="n" style="color: #333;">null_entry</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">{</span> <span class="p">.</span><span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span> <span class="p">}</span> <span class="p">};</span></span>
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893
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<pre style="margin: 0;">-<span id="LC893" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="n" style="color: #333;">none</span><span class="p">;</span></span>
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894
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<pre style="margin: 0;">-<span id="LC894" class="line" lang="c"> <span class="p">}</span> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>
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911
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<pre style="margin: 0;">+<span id="LC911" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">old_block</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">link</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
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895
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912
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<pre style="margin: 0;"> <span id="LC912" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// No, unwind to the previous block and try popping again...</span></span>
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896
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913
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<pre style="margin: 0;"> <span id="LC913" class="line" lang="c"> <span class="n" style="color: #333;">bdescr</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">new_block</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">old_block</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">link</span><span class="p">;</span></span>
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897
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914
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<pre style="margin: 0;"> <span id="LC914" class="line" lang="c"> <span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueueBlock</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">new_block</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">start</span><span class="p">;</span></span>
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898
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915
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<pre style="margin: 0;"> <span id="LC915" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_SM_LOCK</span><span class="p">;</span></span>
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899
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<pre style="margin: 0;">-<span id="LC899" class="line" lang="c"> <span class="n" style="color: #333;">freeGroup</span><span class="p">(</span><span class="n" style="color: #333;">old_block</span><span class="p">);</span> <span class="c1" style="color: #998; font-style: italic;">// TODO: hold on to a block to avoid repeated allocation/deallocation?</span></span>
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916
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<pre style="margin: 0;">+<span id="LC916" class="line" lang="c"> <span class="n" style="color: #333;">freeGroup</span><span class="p">(</span><span class="n" style="color: #333;">old_block</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC917" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// TODO: hold on to a block to avoid repeated allocation/deallocation?</span></span>
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900
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918
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<pre style="margin: 0;"> <span id="LC918" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_SM_LOCK</span><span class="p">;</span></span>
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901
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919
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<pre style="margin: 0;"> <span id="LC919" class="line" lang="c"> <span class="k" style="font-weight: 600;">goto</span> <span class="n" style="color: #333;">again</span><span class="p">;</span></span>
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902
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920
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<pre style="margin: 0;"> <span id="LC920" class="line" lang="c"> <span class="p">}</span></span>
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921
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<pre style="margin: 0;">+<span id="LC921" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="922" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
922
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<pre style="margin: 0;">+<span id="LC922" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Yes, this is the only block therefore queue is empty...</span></span>
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<td class="diff-line-num new new_line" data-linenumber="923" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
923
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<pre style="margin: 0;">+<span id="LC923" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Next we try pulling from our own deque...</span></span>
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<td class="diff-line-num new new_line" data-linenumber="924" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
924
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<pre style="margin: 0;">+<span id="LC924" class="line" lang="c"> <span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">new</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">popWSDeque</span><span class="p">(</span><span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">rest</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="925" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
925
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<pre style="margin: 0;">+<span id="LC925" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">new</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="926" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
926
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<pre style="margin: 0;">+<span id="LC926" class="line" lang="c"> <span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">new</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="927" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
927
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<pre style="margin: 0;">+<span id="LC927" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_SM_LOCK</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="928" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
928
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<pre style="margin: 0;">+<span id="LC928" class="line" lang="c"> <span class="n" style="color: #333;">freeGroup</span><span class="p">(</span><span class="n" style="color: #333;">old_block</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="929" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
929
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<pre style="margin: 0;">+<span id="LC929" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_SM_LOCK</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="930" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
930
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<pre style="margin: 0;">+<span id="LC930" class="line" lang="c"> <span class="k" style="font-weight: 600;">goto</span> <span class="n" style="color: #333;">again</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="931" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
931
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<pre style="margin: 0;">+<span id="LC931" class="line" lang="c"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="932" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
932
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<pre style="margin: 0;">+<span id="LC932" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="933" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
933
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<pre style="margin: 0;">+<span id="LC933" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Our deque is also empty...</span></span>
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<td class="diff-line-num new new_line" data-linenumber="934" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
934
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<pre style="margin: 0;">+<span id="LC934" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Now try pulling from other threads deques...</span></span>
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<td class="diff-line-num new new_line" data-linenumber="935" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
935
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<pre style="margin: 0;">+<span id="LC935" class="line" lang="c"> <span class="n" style="color: #333;">new</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">try_stealing</span><span class="p">();</span></span>
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<td class="diff-line-num new new_line" data-linenumber="936" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
936
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<pre style="margin: 0;">+<span id="LC936" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">new</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num new old_line" data-linenumber="903" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="937" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
937
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<pre style="margin: 0;">+<span id="LC937" class="line" lang="c"> <span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">new</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="938" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
938
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<pre style="margin: 0;">+<span id="LC938" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_SM_LOCK</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="939" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
939
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<pre style="margin: 0;">+<span id="LC939" class="line" lang="c"> <span class="n" style="color: #333;">freeGroup</span><span class="p">(</span><span class="n" style="color: #333;">old_block</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="940" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
940
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<pre style="margin: 0;">+<span id="LC940" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_SM_LOCK</span><span class="p">;</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="941" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
941
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<pre style="margin: 0;">+<span id="LC941" class="line" lang="c"> <span class="k" style="font-weight: 600;">goto</span> <span class="n" style="color: #333;">again</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="942" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
942
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<pre style="margin: 0;">+<span id="LC942" class="line" lang="c"> <span class="p">}</span></span>
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943
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<pre style="margin: 0;">+<span id="LC943" class="line" lang="c"></span>
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944
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<pre style="margin: 0;">+<span id="LC944" class="line" lang="c"> <span class="k" style="font-weight: 600;">const</span> <span class="n" style="color: #333;">MarkQueueEnt</span> <span class="n" style="color: #333;">none</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">{</span> <span class="p">.</span><span class="n" style="color: #333;">null_entry</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">{</span> <span class="p">.</span><span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span> <span class="p">}</span> <span class="p">};</span></span>
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945
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<pre style="margin: 0;">+<span id="LC945" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="n" style="color: #333;">none</span><span class="p">;</span></span>
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903
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946
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<pre style="margin: 0;"> <span id="LC946" class="line" lang="c"> <span class="p">}</span></span>
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904
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947
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<pre style="margin: 0;"> <span id="LC947" class="line" lang="c"></span>
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905
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948
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<pre style="margin: 0;"> <span id="LC948" class="line" lang="c"> <span class="n" style="color: #333;">top</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">head</span><span class="o" style="font-weight: 600;">--</span><span class="p">;</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="961" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -961,23 +1004,20 @@ void init_upd_rem_set (UpdRemSet *queue)</td>
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961
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1004
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<pre style="margin: 0;"> <span id="LC1004" class="line" lang="c"><span class="p">}</span></span>
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962
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1005
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<pre style="margin: 0;"> <span id="LC1005" class="line" lang="c"></span>
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963
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1006
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<pre style="margin: 0;"> <span id="LC1006" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* Must hold sm_mutex. */</span></span>
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964
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<pre style="margin: 0;">-<span id="LC964" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">init_mark_queue<span class="idiff left right">_</span></span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">)</span></span>
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1007
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<pre style="margin: 0;">+<span id="LC1007" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">init_mark_queue</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">)</span></span>
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965
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1008
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<pre style="margin: 0;"> <span id="LC1008" class="line" lang="c"><span class="p">{</span></span>
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966
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1009
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<pre style="margin: 0;"> <span id="LC1009" class="line" lang="c"> <span class="n" style="color: #333;">bdescr</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">bd</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">allocGroup</span><span class="p">(</span><span class="n" style="color: #333;">MARK_QUEUE_BLOCKS</span><span class="p">);</span></span>
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967
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1010
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<pre style="margin: 0;"> <span id="LC1010" class="line" lang="c"> <span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">bd</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">start</span><span class="p">;</span></span>
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<td class="diff-line-num old_line" data-linenumber="968" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
968
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1011
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<pre style="margin: 0;"> <span id="LC1011" class="line" lang="c"> <span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">head</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1012" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1012
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<pre style="margin: 0;">+<span id="LC1012" class="line" lang="c"> <span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">rest</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">newWSDeque</span><span class="p">(</span><span class="n" style="color: #333;">MARK_QUEUE_DEQUE_SIZE</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1013" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1013
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<pre style="margin: 0;">+<span id="LC1013" class="line" lang="c"> <span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">mark_thread_n</span> <span class="o" style="font-weight: 600;">=</span> <span class="o" style="font-weight: 600;">-</span><span class="mi" style="color: #099;">1</span><span class="p">;</span></span>
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1014
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<pre style="margin: 0;">+<span id="LC1014" class="line" lang="c"> <span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">thread_id</span> <span class="o" style="font-weight: 600;">=</span> <span class="o" style="font-weight: 600;">-</span><span class="mi" style="color: #099;">1</span><span class="p">;</span></span>
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969
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1015
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<pre style="margin: 0;"> <span id="LC1015" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if MARK_PREFETCH_QUEUE_DEPTH > 0</span></span>
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970
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1016
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<pre style="margin: 0;"> <span id="LC1016" class="line" lang="c"> <span class="n" style="color: #333;">memset</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">prefetch_queue</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="p">,</span> <span class="k" style="font-weight: 600;">sizeof</span><span class="p">(</span><span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">prefetch_queue</span><span class="p">));</span></span>
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971
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1017
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<pre style="margin: 0;"> <span id="LC1017" class="line" lang="c"> <span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">prefetch_head</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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972
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1018
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<pre style="margin: 0;"> <span id="LC1018" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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973
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1019
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<pre style="margin: 0;"> <span id="LC1019" class="line" lang="c"><span class="p">}</span></span>
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974
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1020
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<pre style="margin: 0;"> <span id="LC1020" class="line" lang="c"></span>
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975
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<td class="diff-line-num new_line old" data-linenumber="1021" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC975" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* Must hold sm_mutex. */</span></span>
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976
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<td class="diff-line-num new_line old" data-linenumber="1021" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC976" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">initMarkQueue</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">)</span></span>
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977
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<pre style="margin: 0;">-<span id="LC977" class="line" lang="c"><span class="p">{</span></span>
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978
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<pre style="margin: 0;">-<span id="LC978" class="line" lang="c"> <span class="n" style="color: #333;">init_mark_queue_</span><span class="p">(</span><span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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979
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<pre style="margin: 0;">-<span id="LC979" class="line" lang="c"><span class="p">}</span></span>
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980
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<pre style="margin: 0;">-<span id="LC980" class="line" lang="c"></span>
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981
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1021
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<pre style="margin: 0;"> <span id="LC1021" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">reset_upd_rem_set</span> <span class="p">(</span><span class="n" style="color: #333;">UpdRemSet</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">rset</span><span class="p">)</span></span>
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982
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1022
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<pre style="margin: 0;"> <span id="LC1022" class="line" lang="c"><span class="p">{</span></span>
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983
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1023
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<pre style="margin: 0;"> <span id="LC1023" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// UpdRemSets always have one block for the mark queue. This assertion is to</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1026" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -986,7 +1026,8 @@ void reset_upd_rem_set (UpdRemSet *rset)</td>
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986
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1026
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<pre style="margin: 0;"> <span id="LC1026" class="line" lang="c"> <span class="n" style="color: #333;">rset</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">block</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">head</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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987
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1027
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<pre style="margin: 0;"> <span id="LC1027" class="line" lang="c"><span class="p">}</span></span>
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988
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1028
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<pre style="margin: 0;"> <span id="LC1028" class="line" lang="c"></span>
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989
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<pre style="margin: 0;">-<span id="LC989" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">freeMarkQueue</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">)</span></span>
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1029
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<pre style="margin: 0;">+<span id="LC1029" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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1030
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<pre style="margin: 0;">+<span id="LC1030" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">freeMarkQueue</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">)</span></span>
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990
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1031
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<pre style="margin: 0;"> <span id="LC1031" class="line" lang="c"><span class="p">{</span></span>
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991
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<td class="diff-line-num new_line" data-linenumber="1032" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1032
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<pre style="margin: 0;"> <span id="LC1032" class="line" lang="c"> <span class="n" style="color: #333;">freeChain_lock</span><span class="p">(</span><span class="n" style="color: #333;">markQueueBlockBdescr</span><span class="p">(</span><span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span><span class="p">));</span></span>
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992
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1033
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<pre style="margin: 0;"> <span id="LC1033" class="line" lang="c"><span class="p">}</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1759" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1800" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1759,8 +1800,8 @@ done:</td>
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1759
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1800
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<pre style="margin: 0;"> <span id="LC1800" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * c. the mark queue has been seeded with a set of roots.</span></span>
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1801
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<pre style="margin: 0;"> <span id="LC1801" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>
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1761
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1802
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<pre style="margin: 0;"> <span id="LC1802" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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1762
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<pre style="margin: 0;">-<span id="LC1762" class="line" lang="c"><span class="n" style="color: #333;">GNUC_ATTR_HOT</span> <span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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1763
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<pre style="margin: 0;">-<span id="LC1763" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">nonmovingMark</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">)</span></span>
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1803
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<pre style="margin: 0;">+<span id="LC1803" class="line" lang="c"><span class="k" style="font-weight: 600;"><span class="idiff left">static</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">GNUC_ATTR_HOT</span> <span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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1804
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<pre style="margin: 0;">+<span id="LC1804" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">nonmovingMark<span class="idiff left right">Loop</span></span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">)</span></span>
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1764
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1805
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<pre style="margin: 0;"> <span id="LC1805" class="line" lang="c"><span class="p">{</span></span>
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1765
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1806
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<pre style="margin: 0;"> <span id="LC1806" class="line" lang="c"> <span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">MarkContext</span> <span class="n" style="color: #333;">mctx</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">markContextInConcMark</span><span class="p">(</span><span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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1766
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1807
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<pre style="margin: 0;"> <span id="LC1807" class="line" lang="c"> <span class="n" style="color: #333;">traceConcMarkBegin</span><span class="p">();</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1834" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1793,17 +1834,17 @@ nonmovingMark (MarkQueue *queue)</td>
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<pre style="margin: 0;"> <span id="LC1834" class="line" lang="c"> <span class="k" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">NULL_ENTRY</span><span class="p">:</span></span>
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1835
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<pre style="margin: 0;"> <span id="LC1835" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Perhaps the update remembered set has more to mark...</span></span>
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1836
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<pre style="margin: 0;"> <span id="LC1836" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">upd_rem_set_block_list</span><span class="p">)</span> <span class="p">{</span></span>
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1796
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<pre style="margin: 0;">-<span id="LC1796" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_<span class="idiff left">LOCK</span></span><span class="p"><span class="idiff">(</span></span><span class="o" style="font-weight: 600;"><span class="idiff">&</span></span><span class="n" style="color: #333;"><span class="idiff">upd_rem_set_lock</span></span><span class="p"><span class="idiff right">)</span>;</span></span>
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1837
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<pre style="margin: 0;">+<span id="LC1837" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_<span class="idiff left right">SM_LOCK</span></span><span class="p">;</span></span>
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1797
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1838
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<pre style="margin: 0;"> <span id="LC1838" class="line" lang="c"> <span class="n" style="color: #333;">bdescr</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">old</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">markQueueBlockBdescr</span><span class="p">(</span><span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span><span class="p">);</span></span>
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1839
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<pre style="margin: 0;">+<span id="LC1839" class="line" lang="c"> <span class="n" style="color: #333;">freeGroup</span><span class="p">(</span><span class="n" style="color: #333;">old</span><span class="p">);</span></span>
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1840
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<pre style="margin: 0;">+<span id="LC1840" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_SM_LOCK</span><span class="p">;</span></span>
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1841
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<pre style="margin: 0;">+<span id="LC1841" class="line" lang="c"></span>
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1842
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<pre style="margin: 0;">+<span id="LC1842" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">upd_rem_set_lock</span><span class="p">);</span></span>
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1798
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1843
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<pre style="margin: 0;"> <span id="LC1843" class="line" lang="c"> <span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">top</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">upd_rem_set_block_list</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">start</span><span class="p">;</span></span>
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1799
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1844
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<pre style="margin: 0;"> <span id="LC1844" class="line" lang="c"> <span class="n" style="color: #333;">upd_rem_set_block_list</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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1800
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<td class="diff-line-num new_line" data-linenumber="1845" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1845
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<pre style="margin: 0;"> <span id="LC1845" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">upd_rem_set_lock</span><span class="p">);</span></span>
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1801
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<pre style="margin: 0;">-<span id="LC1801" class="line" lang="c"></span>
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1802
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<pre style="margin: 0;">-<span id="LC1802" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_SM_LOCK</span><span class="p">;</span></span>
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1803
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<pre style="margin: 0;">-<span id="LC1803" class="line" lang="c"> <span class="n" style="color: #333;">freeGroup</span><span class="p">(</span><span class="n" style="color: #333;">old</span><span class="p">);</span></span>
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1804
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<td class="diff-line-num new_line old" data-linenumber="1846" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1804" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_SM_LOCK</span><span class="p">;</span></span>
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1805
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1846
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<pre style="margin: 0;"> <span id="LC1846" class="line" lang="c"> <span class="p">}</span> <span class="k" style="font-weight: 600;">else</span> <span class="p">{</span></span>
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1806
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<pre style="margin: 0;">-<span id="LC1806" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// <span class="idiff left right">Nothing more to do</span></span></span>
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1847
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<pre style="margin: 0;">+<span id="LC1847" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// <span class="idiff left right">We are out of work...</span></span></span>
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1807
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1848
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<pre style="margin: 0;"> <span id="LC1848" class="line" lang="c"> <span class="n" style="color: #333;">debugTrace</span><span class="p">(</span><span class="n" style="color: #333;">DEBUG_nonmoving_gc</span><span class="p">,</span> <span class="s" style="color: #d14;">"Finished mark pass: %d"</span><span class="p">,</span> <span class="n" style="color: #333;">count</span><span class="p">);</span></span>
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1808
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1849
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<pre style="margin: 0;"> <span id="LC1849" class="line" lang="c"> <span class="n" style="color: #333;">traceConcMarkEnd</span><span class="p">(</span><span class="n" style="color: #333;">count</span><span class="p">);</span></span>
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1809
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1850
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<pre style="margin: 0;"> <span id="LC1850" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span><span class="p">;</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1812" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1853" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1812,6 +1853,112 @@ nonmovingMark (MarkQueue *queue)</td>
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1812
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1853
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<pre style="margin: 0;"> <span id="LC1853" class="line" lang="c"> <span class="p">}</span></span>
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1813
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1854
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<pre style="margin: 0;"> <span id="LC1854" class="line" lang="c"><span class="p">}</span></span>
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1814
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1855
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<pre style="margin: 0;"> <span id="LC1855" class="line" lang="c"></span>
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1856
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<pre style="margin: 0;">+<span id="LC1856" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/*</span></span>
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1857
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<pre style="margin: 0;">+<span id="LC1857" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * This is the mark loop run by the leader thread (mark_thread_n == 0). It</span></span>
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1858
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<pre style="margin: 0;">+<span id="LC1858" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * kicks the worker threads, starts marking itself, and waits until everyone</span></span>
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1859
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<pre style="margin: 0;">+<span id="LC1859" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * finishes.</span></span>
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1860
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<pre style="margin: 0;">+<span id="LC1860" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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1861
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<pre style="margin: 0;">+<span id="LC1861" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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1862
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<pre style="margin: 0;">+<span id="LC1862" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">nonmovingMarkLeader</span> <span class="p">()</span></span>
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1863
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<pre style="margin: 0;">+<span id="LC1863" class="line" lang="c"><span class="p">{</span></span>
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1864
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<pre style="margin: 0;">+<span id="LC1864" class="line" lang="c"> <span class="n" style="color: #333;">broadcastCondition</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">new_work_cond</span><span class="p">);</span></span>
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1865
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<pre style="margin: 0;">+<span id="LC1865" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingMarkLoop</span><span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span><span class="p">[</span><span class="mi" style="color: #099;">0</span><span class="p">]);</span></span>
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1866
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<pre style="margin: 0;">+<span id="LC1866" class="line" lang="c"></span>
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1867
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<pre style="margin: 0;">+<span id="LC1867" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1868
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<pre style="margin: 0;">+<span id="LC1868" class="line" lang="c"> <span class="k" style="font-weight: 600;">while</span> <span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">active_mark_threads</span> <span class="o" style="font-weight: 600;">></span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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1869
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<pre style="margin: 0;">+<span id="LC1869" class="line" lang="c"> <span class="n" style="color: #333;">waitCondition</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">phase_done_cond</span><span class="p">,</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1870
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<pre style="margin: 0;">+<span id="LC1870" class="line" lang="c"> <span class="p">}</span></span>
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1871
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<pre style="margin: 0;">+<span id="LC1871" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1872
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<pre style="margin: 0;">+<span id="LC1872" class="line" lang="c"><span class="p">}</span></span>
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1873
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<pre style="margin: 0;">+<span id="LC1873" class="line" lang="c"></span>
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1874
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<pre style="margin: 0;">+<span id="LC1874" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/*</span></span>
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1875
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<pre style="margin: 0;">+<span id="LC1875" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * This is the loop run by the worker threads.</span></span>
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1876
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<pre style="margin: 0;">+<span id="LC1876" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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1877
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<pre style="margin: 0;">+<span id="LC1877" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="o" style="font-weight: 600;">*</span></span>
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1878
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<pre style="margin: 0;">+<span id="LC1878" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">nonmoving_mark_worker</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">user</span><span class="p">)</span></span>
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1879
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<pre style="margin: 0;">+<span id="LC1879" class="line" lang="c"><span class="p">{</span></span>
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1880
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<pre style="margin: 0;">+<span id="LC1880" class="line" lang="c"> <span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="n" style="color: #333;">user</span><span class="p">;</span></span>
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1881
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<pre style="margin: 0;">+<span id="LC1881" class="line" lang="c"> <span class="k" style="font-weight: 600;">const</span> <span class="kt" style="color: #458; font-weight: 600;">uint32_t</span> <span class="n" style="color: #333;">mark_thread_n</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">queue</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">mark_thread_n</span><span class="p">;</span></span>
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1882
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<pre style="margin: 0;">+<span id="LC1882" class="line" lang="c"></span>
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1883
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<pre style="margin: 0;">+<span id="LC1883" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1884
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<pre style="margin: 0;">+<span id="LC1884" class="line" lang="c"> <span class="k" style="font-weight: 600;">while</span> <span class="p">(</span><span class="n" style="color: #333;">mark_thread_n</span> <span class="o" style="font-weight: 600;">></span> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span> <span class="o" style="font-weight: 600;">-</span> <span class="mi" style="color: #099;">1</span><span class="p">)</span> <span class="p">{</span></span>
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1885
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<pre style="margin: 0;">+<span id="LC1885" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1886" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1886
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<pre style="margin: 0;">+<span id="LC1886" class="line" lang="c"> <span class="n" style="color: #333;">nonmovingMarkLoop</span><span class="p">(</span><span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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1887
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<pre style="margin: 0;">+<span id="LC1887" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1888
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<pre style="margin: 0;">+<span id="LC1888" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="1889" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1889
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<pre style="margin: 0;">+<span id="LC1889" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">active_mark_threads</span> <span class="o" style="font-weight: 600;">--</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1890" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1890
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<pre style="margin: 0;">+<span id="LC1890" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">active_mark_threads</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1891" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1891
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<pre style="margin: 0;">+<span id="LC1891" class="line" lang="c"> <span class="n" style="color: #333;">signalCondition</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">phase_done_cond</span><span class="p">);</span></span>
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1892
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<pre style="margin: 0;">+<span id="LC1892" class="line" lang="c"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1893" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1893
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<pre style="margin: 0;">+<span id="LC1893" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">mark_thread_n</span> <span class="o" style="font-weight: 600;">!=</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1894" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1894
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<pre style="margin: 0;">+<span id="LC1894" class="line" lang="c"> <span class="n" style="color: #333;">waitCondition</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">new_work_cond</span><span class="p">,</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1895
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<pre style="margin: 0;">+<span id="LC1895" class="line" lang="c"> <span class="p">}</span></span>
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1896
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<pre style="margin: 0;">+<span id="LC1896" class="line" lang="c"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1897" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1897
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<pre style="margin: 0;">+<span id="LC1897" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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1898
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<pre style="margin: 0;">+<span id="LC1898" class="line" lang="c"><span class="p">}</span></span>
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1899
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<pre style="margin: 0;">+<span id="LC1899" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="1900" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1900
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<pre style="margin: 0;">+<span id="LC1900" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1901" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1901
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<pre style="margin: 0;">+<span id="LC1901" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">nonmovingInitMarkState</span><span class="p">()</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1902" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1902
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<pre style="margin: 0;">+<span id="LC1902" class="line" lang="c"><span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1903" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1903
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<pre style="margin: 0;">+<span id="LC1903" class="line" lang="c"> <span class="n" style="color: #333;">initMutex</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1904" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1904
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<pre style="margin: 0;">+<span id="LC1904" class="line" lang="c"> <span class="n" style="color: #333;">initCondition</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">phase_done_cond</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1905" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1905
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<pre style="margin: 0;">+<span id="LC1905" class="line" lang="c"> <span class="n" style="color: #333;">initCondition</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">new_work_cond</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1906" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1906
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<pre style="margin: 0;">+<span id="LC1906" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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1907
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<pre style="margin: 0;">+<span id="LC1907" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">active_mark_threads</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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1908
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<pre style="margin: 0;">+<span id="LC1908" class="line" lang="c"><span class="p">}</span></span>
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1909
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<pre style="margin: 0;">+<span id="LC1909" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="1910" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1910
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<pre style="margin: 0;">+<span id="LC1910" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1911" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1911
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<pre style="margin: 0;">+<span id="LC1911" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">startMarkThreads</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">n_mark_threads</span><span class="p">)</span></span>
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1912
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<pre style="margin: 0;">+<span id="LC1912" class="line" lang="c"><span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1913" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1913
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<pre style="margin: 0;">+<span id="LC1913" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1914" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1914
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<pre style="margin: 0;">+<span id="LC1914" class="line" lang="c"> <span class="n" style="color: #333;">ASSERT</span><span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">);</span></span>
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1915
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<pre style="margin: 0;">+<span id="LC1915" class="line" lang="c"> <span class="n" style="color: #333;">ASSERT</span><span class="p">(</span><span class="n" style="color: #333;">n_mark_threads</span> <span class="o" style="font-weight: 600;">>=</span> <span class="mi" style="color: #099;">1</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1916" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1916
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<pre style="margin: 0;">+<span id="LC1916" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="1917" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1917
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<pre style="margin: 0;">+<span id="LC1917" class="line" lang="c"> <span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">**</span><span class="n" style="color: #333;">old_queues</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1918" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1918
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<pre style="margin: 0;">+<span id="LC1918" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">stgMallocBytes</span><span class="p">(</span><span class="k" style="font-weight: 600;">sizeof</span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">n_mark_threads</span><span class="p">,</span> <span class="s" style="color: #d14;">"startMarkThreads"</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1919" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1919
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<pre style="margin: 0;">+<span id="LC1919" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">old_queues</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1920" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1920
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<pre style="margin: 0;">+<span id="LC1920" class="line" lang="c"> <span class="n" style="color: #333;">memcpy</span><span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span><span class="p">,</span> <span class="n" style="color: #333;">old_queues</span><span class="p">,</span> <span class="k" style="font-weight: 600;">sizeof</span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1921" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1921
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<pre style="margin: 0;">+<span id="LC1921" class="line" lang="c"> <span class="n" style="color: #333;">stgFree</span><span class="p">(</span><span class="n" style="color: #333;">old_queues</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1922" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1922
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<pre style="margin: 0;">+<span id="LC1922" class="line" lang="c"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1923" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1923
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<pre style="margin: 0;">+<span id="LC1923" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="1924" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1924
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<pre style="margin: 0;">+<span id="LC1924" class="line" lang="c"> <span class="k" style="font-weight: 600;">for</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span><span class="p">;</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;"><</span> <span class="n" style="color: #333;">n_mark_threads</span><span class="p">;</span> <span class="n" style="color: #333;">i</span><span class="o" style="font-weight: 600;">++</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1925" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1925
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<pre style="margin: 0;">+<span id="LC1925" class="line" lang="c"> <span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">q</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">stgMallocBytes</span><span class="p">(</span><span class="k" style="font-weight: 600;">sizeof</span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span><span class="o" style="font-weight: 600;">*</span><span class="p">),</span> <span class="s" style="color: #d14;">"startMarkThreads"</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1926" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1926
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<pre style="margin: 0;">+<span id="LC1926" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span><span class="p">[</span><span class="n" style="color: #333;">i</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">q</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1927" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1927
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<pre style="margin: 0;">+<span id="LC1927" class="line" lang="c"> <span class="n" style="color: #333;">init_mark_queue</span><span class="p">(</span><span class="n" style="color: #333;">q</span><span class="p">);</span></span>
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1928
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<pre style="margin: 0;">+<span id="LC1928" class="line" lang="c"></span>
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1929
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<pre style="margin: 0;">+<span id="LC1929" class="line" lang="c"> <span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">mark_thread_n</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">i</span><span class="p">;</span></span>
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1930
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<pre style="margin: 0;">+<span id="LC1930" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">active_mark_threads</span> <span class="o" style="font-weight: 600;">++</span><span class="p">;</span></span>
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1931
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<pre style="margin: 0;">+<span id="LC1931" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span> <span class="o" style="font-weight: 600;">++</span><span class="p">;</span></span>
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1932
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<pre style="margin: 0;">+<span id="LC1932" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="1933" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1933
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<pre style="margin: 0;">+<span id="LC1933" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// N.B. mark thread 0 runs in the context of the main mark thread.</span></span>
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1934
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<pre style="margin: 0;">+<span id="LC1934" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">></span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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1935
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<pre style="margin: 0;">+<span id="LC1935" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">res</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">createOSThread</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">q</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">thread_id</span><span class="p">,</span> <span class="s" style="color: #d14;">"concurrent mark thread"</span><span class="p">,</span> <span class="n" style="color: #333;">nonmoving_mark_worker</span><span class="p">,</span> <span class="n" style="color: #333;">q</span><span class="p">);</span></span>
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1936
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<pre style="margin: 0;">+<span id="LC1936" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">res</span> <span class="o" style="font-weight: 600;">!=</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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1937
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<pre style="margin: 0;">+<span id="LC1937" class="line" lang="c"> <span class="n" style="color: #333;">barf</span><span class="p">(</span><span class="s" style="color: #d14;">"startMarkThreads"</span><span class="p">);</span></span>
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1938
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<pre style="margin: 0;">+<span id="LC1938" class="line" lang="c"> <span class="p">}</span></span>
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1939
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<pre style="margin: 0;">+<span id="LC1939" class="line" lang="c"> <span class="p">}</span></span>
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1940
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<pre style="margin: 0;">+<span id="LC1940" class="line" lang="c"> <span class="p">}</span></span>
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1941
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<pre style="margin: 0;">+<span id="LC1941" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1942
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<pre style="margin: 0;">+<span id="LC1942" class="line" lang="c"><span class="p">}</span></span>
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1943
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<pre style="margin: 0;">+<span id="LC1943" class="line" lang="c"></span>
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1944
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<pre style="margin: 0;">+<span id="LC1944" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span></span>
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1945
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<pre style="margin: 0;">+<span id="LC1945" class="line" lang="c"><span class="nf" style="color: #900; font-weight: 600;">stopMarkThreads</span><span class="p">()</span></span>
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1946
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<pre style="margin: 0;">+<span id="LC1946" class="line" lang="c"><span class="p">{</span></span>
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1947
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<pre style="margin: 0;">+<span id="LC1947" class="line" lang="c"> <span class="n" style="color: #333;">ACQUIRE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1948
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<pre style="margin: 0;">+<span id="LC1948" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// ensure that there are no active threads since we will be freeing</span></span>
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1949
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<pre style="margin: 0;">+<span id="LC1949" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// the MarkQueues shortly.</span></span>
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1950
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<pre style="margin: 0;">+<span id="LC1950" class="line" lang="c"> <span class="n" style="color: #333;">ASSERT</span><span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">active_mark_threads</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">);</span></span>
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1951
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<pre style="margin: 0;">+<span id="LC1951" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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1952
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<pre style="margin: 0;">+<span id="LC1952" class="line" lang="c"> <span class="n" style="color: #333;">broadcastCondition</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">new_work_cond</span><span class="p">);</span></span>
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1953
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<pre style="margin: 0;">+<span id="LC1953" class="line" lang="c"></span>
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1954
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<pre style="margin: 0;">+<span id="LC1954" class="line" lang="c"> <span class="k" style="font-weight: 600;">for</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">uint32_t</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;"><</span> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">n_mark_threads</span><span class="p">;</span> <span class="n" style="color: #333;">i</span><span class="o" style="font-weight: 600;">++</span><span class="p">)</span> <span class="p">{</span></span>
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1955
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<pre style="margin: 0;">+<span id="LC1955" class="line" lang="c"> <span class="n" style="color: #333;">freeMarkQueue</span><span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span><span class="p">[</span><span class="n" style="color: #333;">i</span><span class="p">]);</span></span>
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1956
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<pre style="margin: 0;">+<span id="LC1956" class="line" lang="c"> <span class="p">}</span></span>
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1957
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<pre style="margin: 0;">+<span id="LC1957" class="line" lang="c"> <span class="n" style="color: #333;">stgFree</span><span class="p">(</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span><span class="p">);</span></span>
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1958
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<pre style="margin: 0;">+<span id="LC1958" class="line" lang="c"> <span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">queues</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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1959
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<pre style="margin: 0;">+<span id="LC1959" class="line" lang="c"> <span class="n" style="color: #333;">RELEASE_LOCK</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">mark_state</span><span class="p">.</span><span class="n" style="color: #333;">lock</span><span class="p">);</span></span>
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1960
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<pre style="margin: 0;">+<span id="LC1960" class="line" lang="c"><span class="p">}</span></span>
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1961
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<pre style="margin: 0;">+<span id="LC1961" class="line" lang="c"></span>
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1962
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<pre style="margin: 0;"> <span id="LC1962" class="line" lang="c"><span class="c1" style="color: #998; font-style: italic;">// A variant of `isAlive` that works for non-moving heap. Used for:</span></span>
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1963
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<pre style="margin: 0;"> <span id="LC1963" class="line" lang="c"><span class="c1" style="color: #998; font-style: italic;">//</span></span>
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1817
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1964
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<pre style="margin: 0;"> <span id="LC1964" class="line" lang="c"><span class="c1" style="color: #998; font-style: italic;">// - Collecting weak pointers; checking key of a weak pointer.</span></span>
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<li id="bcae703553e66a4a73c4aa4a930513cc4aa923cf">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cfd77aba805f8bc8e81a39a4f3b67ea8b2c23ea4#bcae703553e66a4a73c4aa4a930513cc4aa923cf"><strong>rts/sm/NonMovingMark.h</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -10,6 +10,7 @@</td>
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10
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10
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<pre style="margin: 0;"> <span id="LC10" class="line" lang="c"></span>
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11
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11
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<pre style="margin: 0;"> <span id="LC11" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "Task.h"</span></span>
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12
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<pre style="margin: 0;"> <span id="LC12" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "NonMoving.h"</span></span>
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13
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<pre style="margin: 0;">+<span id="LC13" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "WSDeque.h"</span></span>
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14
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<pre style="margin: 0;"> <span id="LC14" class="line" lang="c"></span>
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15
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<pre style="margin: 0;"> <span id="LC15" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include "BeginPrivate.h"</span></span>
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15
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16
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<pre style="margin: 0;"> <span id="LC16" class="line" lang="c"></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="101" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="102" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -101,6 +102,9 @@ INLINE_HEADER bdescr *markQueueBlockBdescr(MarkQueueBlock *b)</td>
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102
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<pre style="margin: 0;"> <span id="LC102" class="line" lang="c"><span class="c1" style="color: #998; font-style: italic;">// How far ahead in mark queue to prefetch?</span></span>
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103
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<pre style="margin: 0;"> <span id="LC103" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define MARK_PREFETCH_QUEUE_DEPTH 5</span></span>
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103
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104
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<pre style="margin: 0;"> <span id="LC104" class="line" lang="c"></span>
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105
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<pre style="margin: 0;">+<span id="LC105" class="line" lang="c"><span class="c1" style="color: #998; font-style: italic;">// How many blocks to keep on the deque?</span></span>
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106
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<pre style="margin: 0;">+<span id="LC106" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define MARK_QUEUE_DEQUE_SIZE 32</span></span>
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107
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<pre style="margin: 0;">+<span id="LC107" class="line" lang="c"></span>
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104
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<pre style="margin: 0;"> <span id="LC108" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* The mark queue is not capable of concurrent read or write.</span></span>
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105
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109
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<pre style="margin: 0;"> <span id="LC109" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>
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106
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<pre style="margin: 0;"> <span id="LC110" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * invariants:</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -115,6 +119,12 @@ typedef struct MarkQueue_ {</td>
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<pre style="margin: 0;"> <span id="LC119" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// Bdescr(q->top)->link->start</span></span>
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<pre style="margin: 0;"> <span id="LC120" class="line" lang="c"> <span class="n" style="color: #333;">MarkQueueBlock</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">top</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC121" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC122" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// A WSDeque of MarkQueueBlock*s which mark threads can steal from. When</span></span>
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<pre style="margin: 0;">+<span id="LC123" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// the deque overflows we link blocks onto Bdescr(top)->link.</span></span>
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<pre style="margin: 0;">+<span id="LC124" class="line" lang="c"> <span class="n" style="color: #333;">WSDeque</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">rest</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC125" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC126" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">mark_thread_n</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC127" class="line" lang="c"> <span class="n" style="color: #333;">OSThreadId</span> <span class="n" style="color: #333;">thread_id</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC128" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC129" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if MARK_PREFETCH_QUEUE_DEPTH > 0</span></span>
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<pre style="margin: 0;"> <span id="LC130" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// A ring-buffer of entries which we will mark next</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="134" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -124,6 +134,25 @@ typedef struct MarkQueue_ {</td>
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<pre style="margin: 0;"> <span id="LC134" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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<pre style="margin: 0;"> <span id="LC135" class="line" lang="c"><span class="p">}</span> <span class="n" style="color: #333;">MarkQueue</span><span class="p">;</span></span>
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126
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136
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<pre style="margin: 0;"> <span id="LC136" class="line" lang="c"></span>
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137
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<pre style="margin: 0;">+<span id="LC137" class="line" lang="c"><span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">MarkState</span> <span class="p">{</span></span>
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138
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<pre style="margin: 0;">+<span id="LC138" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// protects active_mark_threads and n_mark_threads.</span></span>
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139
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<pre style="margin: 0;">+<span id="LC139" class="line" lang="c"> <span class="n" style="color: #333;">Mutex</span> <span class="n" style="color: #333;">lock</span><span class="p">;</span></span>
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140
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<pre style="margin: 0;">+<span id="LC140" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// signalled when all marking threads have finished a round of marking.</span></span>
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<td class="diff-line-num new new_line" data-linenumber="141" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
141
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<pre style="margin: 0;">+<span id="LC141" class="line" lang="c"> <span class="n" style="color: #333;">Condition</span> <span class="n" style="color: #333;">phase_done_cond</span><span class="p">;</span></span>
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142
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<pre style="margin: 0;">+<span id="LC142" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// signalled to wake up marking threads for a new round of marking</span></span>
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143
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<pre style="margin: 0;">+<span id="LC143" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// (or terminate if .n_mark_threads > thread.mark_thread_n).</span></span>
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144
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<pre style="margin: 0;">+<span id="LC144" class="line" lang="c"> <span class="n" style="color: #333;">Condition</span> <span class="n" style="color: #333;">new_work_cond</span><span class="p">;</span></span>
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145
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<pre style="margin: 0;">+<span id="LC145" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// how many threads are currently marking?</span></span>
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146
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<pre style="margin: 0;">+<span id="LC146" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">uint32_t</span> <span class="n" style="color: #333;">active_mark_threads</span><span class="p">;</span></span>
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147
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<pre style="margin: 0;">+<span id="LC147" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// how many threads have been created?</span></span>
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148
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<pre style="margin: 0;">+<span id="LC148" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// this is currently static throughout marking.</span></span>
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149
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<pre style="margin: 0;">+<span id="LC149" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">uint32_t</span> <span class="n" style="color: #333;">n_mark_threads</span><span class="p">;</span></span>
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150
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<pre style="margin: 0;">+<span id="LC150" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// an array of MarkQueue*s, one per mark thread</span></span>
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151
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<pre style="margin: 0;">+<span id="LC151" class="line" lang="c"> <span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">**</span><span class="n" style="color: #333;">queues</span><span class="p">;</span></span>
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152
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<pre style="margin: 0;">+<span id="LC152" class="line" lang="c"><span class="p">};</span></span>
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153
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<pre style="margin: 0;">+<span id="LC153" class="line" lang="c"></span>
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154
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<pre style="margin: 0;">+<span id="LC154" class="line" lang="c"><span class="k" style="font-weight: 600;">extern</span> <span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">MarkState</span> <span class="n" style="color: #333;">mark_state</span><span class="p">;</span></span>
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155
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<pre style="margin: 0;">+<span id="LC155" class="line" lang="c"></span>
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127
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156
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<pre style="margin: 0;"> <span id="LC156" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* The update remembered set.</span></span>
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128
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157
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<pre style="margin: 0;"> <span id="LC157" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>
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129
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158
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<pre style="margin: 0;"> <span id="LC158" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * invariants:</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="173" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="202" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -173,9 +202,10 @@ void nonmovingFinishFlush(Task *task);</td>
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<pre style="margin: 0;"> <span id="LC202" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC203" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">markQueueAddRoot</span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span><span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">q</span><span class="p">,</span> <span class="n" style="color: #333;">StgClosure</span><span class="o" style="font-weight: 600;">**</span> <span class="n" style="color: #333;">root</span><span class="p">);</span></span>
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204
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<pre style="margin: 0;"> <span id="LC204" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC176" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">initMarkQueue</span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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177
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<pre style="margin: 0;">-<span id="LC177" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">freeMarkQueue</span><span class="p">(</span><span class="n" style="color: #333;">MarkQueue</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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<td class="diff-line-num old old_line" data-linenumber="178" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
178
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<pre style="margin: 0;">-<span id="LC178" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">nonmovingMark</span><span class="p">(</span><span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">MarkQueue_</span> <span class="o" style="font-weight: 600;">*</span><span class="kr" style="font-weight: 600;">restrict</span> <span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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205
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<pre style="margin: 0;">+<span id="LC205" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">startMarkThreads</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">n_mark_threads</span><span class="p">);</span></span>
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206
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<pre style="margin: 0;">+<span id="LC206" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">stopMarkThreads</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span><span class="p">);</span></span>
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207
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<pre style="margin: 0;">+<span id="LC207" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">nonmovingInitMarkState</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span><span class="p">);</span></span>
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208
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<pre style="margin: 0;">+<span id="LC208" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">nonmovingMarkLeader</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span><span class="p">);</span></span>
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179
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209
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<pre style="margin: 0;"> <span id="LC209" class="line" lang="c"></span>
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180
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210
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<pre style="margin: 0;"> <span id="LC210" class="line" lang="c"><span class="n" style="color: #333;">bool</span> <span class="nf" style="color: #900; font-weight: 600;">nonmovingTidyWeaks</span><span class="p">(</span><span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">MarkQueue_</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">queue</span><span class="p">);</span></span>
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181
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211
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<pre style="margin: 0;"> <span id="LC211" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">void</span> <span class="nf" style="color: #900; font-weight: 600;">nonmovingTidyThreads</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">void</span><span class="p">);</span></span>
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