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Code Issues Releases Wiki Activity

ircd::db: Fix additional db::prefetcher shutdown. (related cd15c17499)

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This commit is contained in:
Jason Volk 2022-07-13 12:46:51 -07:00
parent 994702b32f
commit 084bef0579
2 changed files with 19 additions and 26 deletions
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3
include/ircd/db/prefetcher.h
View file

@ -28,7 +28,7 @@ struct ircd::db::prefetcher
ctx::context context;
size_t request_workers {0};
size_t wait_pending();
private:
void request_handle(request &);
size_t request_cleanup() noexcept;
void request_worker();
@ -36,6 +36,7 @@ struct ircd::db::prefetcher
void worker();
public:
size_t wait_pending();
size_t cancel(const closure &);
size_t cancel(database &); // Cancel all for db
size_t cancel(column &); // Cancel all for column

42
ircd/db.cc
View file

@ -682,6 +682,23 @@ ircd::db::prefetcher::cancel(const closure &closure)
return canceled;
}
size_t
ircd::db::prefetcher::wait_pending()
{
const size_t fetched
{
ticker->fetched
};
dock.wait([this, &fetched]() noexcept
{
return this->ticker->fetched >= fetched + this->request_workers;
});
assert(ticker->fetched >= fetched);
return ticker->fetched - fetched;
}
void
ircd::db::prefetcher::worker()
try
@ -875,31 +892,6 @@ catch(...)
throw;
}
size_t
ircd::db::prefetcher::wait_pending()
{
const size_t fetched_counter
{
ticker->fetched
};
const size_t fetched_target
{
fetched_counter + request_workers
};
dock.wait([this, &fetched_target]() noexcept
{
return false
|| this->ticker->fetched >= fetched_target
|| !request_workers
;
});
assert(fetched_target >= fetched_counter);
return fetched_target - fetched_counter;
}
//
// prefetcher::request
//