| 55 | } |
| 56 | |
| 57 | std::optional<ProcessRunner::Results> singleWait(HANDLE handle, DWORD pid) |
| 58 | { |
| 59 | if (handle == INVALID_HANDLE_VALUE) { |
| 60 | return ProcessRunner::Error; |
| 61 | } |
| 62 | |
| 63 | const auto res = WaitForSingleObject(handle, 50); |
| 64 | |
| 65 | switch (res) { |
| 66 | case WAIT_OBJECT_0: { |
| 67 | log::debug("process {} completed", pid); |
| 68 | return ProcessRunner::Completed; |
| 69 | } |
| 70 | |
| 71 | case WAIT_TIMEOUT: { |
| 72 | // still running |
| 73 | return {}; |
| 74 | } |
| 75 | |
| 76 | case WAIT_FAILED: // fall-through |
| 77 | default: { |
| 78 | // error |
| 79 | const auto e = ::GetLastError(); |
| 80 | log::error("failed waiting for {}, {}", pid, formatSystemMessage(e)); |
| 81 | return ProcessRunner::Error; |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | enum class Interest |
| 87 | { |