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ircd::ctx: Fix invalidation of the promise list head after ready.

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ircd::ctx: Fix check for pending on invalidate_futures().
This commit is contained in:
Jason Volk 2019-09-03 17:35:46 -07:00
parent 2c3aca9a4a
commit 2c20f0a659
1 changed files with 10 additions and 6 deletions
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16
ircd/ctx.cc
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@ -2054,6 +2054,7 @@ ircd::ctx::promise_base::make_ready()
// At this point the promise should no longer be considered valid; no longer
// referring to the shared_state.
this->st = nullptr;
assert(!valid());
}
@ -2119,8 +2120,13 @@ ircd::ctx::remove(promise_base &p)
promise_base::head(p)
};
if(last == &p && p.next)
set_futures_promise(*p.next);
if(last == &p)
{
if(p.next)
set_futures_promise(*p.next);
else
invalidate_futures(p);
}
if(last)
for(auto *next{last->next}; next; last = next, next = last->next)
@ -2190,10 +2196,8 @@ ircd::ctx::set_futures_promise(promise_base &p)
};
for(; next; next = next->next)
{
assert(is(*next, future_state::PENDING));
next->p = std::addressof(p);
}
if(is(*next, future_state::PENDING))
next->p = std::addressof(p);
}
void