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fix(util/mt_task_queue): fix segfault

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This commit is contained in:
Gabriel Ebner 2016-11-17 21:41:22 -05:00 • committed by Leonardo de Moura
parent 385ea13688
commit b5113976aa
1 changed files with 6 additions and 2 deletions
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8
src/util/mt_task_queue.cpp
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@ -152,11 +152,15 @@ void mt_task_queue::submit(generic_task_result const & t) {
}
void mt_task_queue::bump_prio(generic_task_result const & t, task_priority const & new_prio) {
if (t->m_task && new_prio < t->m_task->m_prio) {
if (t->m_task && new_prio < t->m_task->m_prio && t->m_state.load() == task_result_state::QUEUED) {
if (!m_waiting.count(t)) {
auto & q = m_queue[t->m_task->m_prio.m_prio];
auto prio = t->m_task->m_prio.m_prio;
auto & q = m_queue[prio];
auto it = std::find(q.begin(), q.end(), t);
lean_assert(it != q.end());
q.erase(it);
if (q.empty()) m_queue.erase(prio);
t->m_task->m_prio.bump(new_prio);
enqueue(t);
} else {