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Further-enforce lockordering by enforcing directly after TRY_LOCKs

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This commit is contained in:
Matt Corallo 2017-02-07 14:15:28 -05:00
parent 2a962d4540
commit 618ee9249b
1 changed files with 11 additions and 13 deletions
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24
src/sync.cpp
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@ -110,21 +110,19 @@ static void push_lock(void* c, const CLockLocation& locklocation, bool fTry)
(*lockstack).push_back(std::make_pair(c, locklocation)); (*lockstack).push_back(std::make_pair(c, locklocation));
if (!fTry) { BOOST_FOREACH (const PAIRTYPE(void*, CLockLocation) & i, (*lockstack)) {
BOOST_FOREACH (const PAIRTYPE(void*, CLockLocation) & i, (*lockstack)) { if (i.first == c)
if (i.first == c) break;
break;
std::pair<void*, void*> p1 = std::make_pair(i.first, c); std::pair<void*, void*> p1 = std::make_pair(i.first, c);
if (lockdata.lockorders.count(p1)) if (lockdata.lockorders.count(p1))
continue; continue;
lockdata.lockorders[p1] = (*lockstack); lockdata.lockorders[p1] = (*lockstack);
std::pair<void*, void*> p2 = std::make_pair(c, i.first); std::pair<void*, void*> p2 = std::make_pair(c, i.first);
lockdata.invlockorders.insert(p2); lockdata.invlockorders.insert(p2);
if (lockdata.lockorders.count(p2)) if (lockdata.lockorders.count(p2))
potential_deadlock_detected(p1, lockdata.lockorders[p2], lockdata.lockorders[p1]); potential_deadlock_detected(p1, lockdata.lockorders[p2], lockdata.lockorders[p1]);
}
} }
} }