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ircd::ctx::parallel: Handle case for empty pool by executing receiver immediately.

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This commit is contained in:
Jason Volk 2019-01-01 20:29:59 -08:00
parent c2103ec0d6
commit 7f4bb1a7db
1 changed files with 18 additions and 4 deletions
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22
include/ircd/ctx/parallel.h
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@ -67,12 +67,19 @@ template<class arg>
void
ircd::ctx::parallel<arg>::operator()(const arg &a)
{
auto &p(*this->p);
rethrow_any_exception();
p(std::bind(&parallel::receiver, this));
this->a.at(snd++) = a;
snd %= this->a.size();
out++;
auto &p(*this->p);
auto func(std::bind(&parallel::receiver, this));
if(likely(p.size()))
p(std::move(func));
else
func();
wait_avail();
}
@ -81,11 +88,18 @@ void
ircd::ctx::parallel<arg>::operator()()
{
rethrow_any_exception();
auto &p(*this->p);
p(std::bind(&parallel::receiver, this));
snd++;
snd %= this->a.size();
out++;
auto &p(*this->p);
auto func(std::bind(&parallel::receiver, this));
if(likely(p.size()))
p(std::move(func));
else
func();
wait_avail();
}