| 77 | } |
| 78 | |
| 79 | void AsyncWorkerSet::worker_impl(const Task& task) { |
| 80 | size_t cur_finished_call = m_nr_start_call; |
| 81 | m_worker_init_finished.store(true); |
| 82 | |
| 83 | for (;;) { |
| 84 | std::unique_lock<std::mutex> lk(m_mtx); |
| 85 | if (m_should_stop) |
| 86 | return; |
| 87 | size_t dst_nr_call = m_nr_start_call; |
| 88 | |
| 89 | if (cur_finished_call < dst_nr_call) { |
| 90 | lk.unlock(); |
| 91 | |
| 92 | while (cur_finished_call < dst_nr_call) { |
| 93 | if (m_should_stop) |
| 94 | return; |
| 95 | task(); |
| 96 | cur_finished_call++; |
| 97 | } |
| 98 | |
| 99 | lk.lock(); |
| 100 | |
| 101 | // check stop flag whenever lock is acquired |
| 102 | if (m_should_stop) |
| 103 | return; |
| 104 | |
| 105 | if (cur_finished_call == m_nr_start_call) { |
| 106 | mgb_assert(m_nr_worker_to_wait); |
| 107 | m_nr_worker_to_wait--; |
| 108 | m_cv_finish.notify_one(); |
| 109 | lk.unlock(); |
| 110 | } |
| 111 | } else { |
| 112 | m_cv_start.wait(lk); |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | void AsyncWorkerSet::check_exception() { |
| 118 | #if MGB_ENABLE_EXCEPTION |