| 52 | } |
| 53 | |
| 54 | void ThreadPool::work() |
| 55 | { |
| 56 | while (true) |
| 57 | { |
| 58 | std::unique_lock<std::mutex> lock(m_mutex); |
| 59 | m_consumeCv.wait(lock, [this]() |
| 60 | { |
| 61 | return m_tasks.size() || !m_running; |
| 62 | }); |
| 63 | |
| 64 | if (m_tasks.size()) |
| 65 | { |
| 66 | ++m_outstanding; |
| 67 | auto task(std::move(m_tasks.front())); |
| 68 | m_tasks.pop(); |
| 69 | |
| 70 | lock.unlock(); |
| 71 | |
| 72 | // Notify add(), which may be waiting for a spot in the queue. |
| 73 | m_produceCv.notify_all(); |
| 74 | |
| 75 | std::string err; |
| 76 | |
| 77 | task(); |
| 78 | |
| 79 | lock.lock(); |
| 80 | --m_outstanding; |
| 81 | lock.unlock(); |
| 82 | |
| 83 | // Notify await(), which may be waiting for a running task. |
| 84 | m_produceCv.notify_all(); |
| 85 | } |
| 86 | else if (!m_running) |
| 87 | { |
| 88 | return; |
| 89 | } |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | } // namespace pdal |
| 94 | |