diff options
Diffstat (limited to 'src/sync.cpp')
-rw-r--r-- | src/sync.cpp | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/src/sync.cpp b/src/sync.cpp index 10f0483189..4be13a3c48 100644 --- a/src/sync.cpp +++ b/src/sync.cpp @@ -149,12 +149,17 @@ static void push_lock(void* c, const CLockLocation& locklocation) const LockPair p1 = std::make_pair(i.first, c); if (lockdata.lockorders.count(p1)) continue; - lockdata.lockorders.emplace(p1, lock_stack); const LockPair p2 = std::make_pair(c, i.first); + if (lockdata.lockorders.count(p2)) { + auto lock_stack_copy = lock_stack; + lock_stack.pop_back(); + potential_deadlock_detected(p1, lockdata.lockorders[p2], lock_stack_copy); + // potential_deadlock_detected() does not return. + } + + lockdata.lockorders.emplace(p1, lock_stack); lockdata.invlockorders.insert(p2); - if (lockdata.lockorders.count(p2)) - potential_deadlock_detected(p1, lockdata.lockorders[p2], lockdata.lockorders[p1]); } } @@ -259,6 +264,17 @@ void DeleteLock(void* cs) } } +bool LockStackEmpty() +{ + LockData& lockdata = GetLockData(); + std::lock_guard<std::mutex> lock(lockdata.dd_mutex); + const auto it = lockdata.m_lock_stacks.find(std::this_thread::get_id()); + if (it == lockdata.m_lock_stacks.end()) { + return true; + } + return it->second.empty(); +} + bool g_debug_lockorder_abort = true; #endif /* DEBUG_LOCKORDER */ |