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gotten rid of wait_for_epochs in insertion

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This commit is contained in:
joaquintides
2023-12-04 11:26:35 +01:00
parent d6a8a4462c
commit 8bd1bcf5de
1 changed files with 3 additions and 3 deletions
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6
include/boost/unordered/detail/foa/concurrent_table.hpp
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@@ -1492,7 +1492,7 @@ private:
for(;;){
startover:
boost::uint32_t counter=insert_counter(pos0);
boost::uint32_t counter=++insert_counter(pos0);
if(unprotected_visit(
access_mode,k,pos0,hash,std::forward<F>(f)))return 0;
@@ -1510,8 +1510,8 @@ private:
/* slot wasn't empty */
goto startover;
}
wait_for_epochs(); // WHY BEFORE THE FOLLOWING?
if(BOOST_UNLIKELY(insert_counter(pos0)++!=counter)){
auto lck=access(group_exclusive{},pos0);
if(BOOST_UNLIKELY(insert_counter(pos0)!=counter)){
/* other thread inserted from pos0, need to start over */
pg->reset(n);
goto startover;