| 1370 | } |
| 1371 | |
| 1372 | bool cbm_subprocess_request_cancel(cbm_subprocess_t *process) { |
| 1373 | if (!process) { |
| 1374 | return false; |
| 1375 | } |
| 1376 | int lifecycle = atomic_load_explicit(&process->lifecycle, memory_order_acquire); |
| 1377 | for (;;) { |
| 1378 | if (lifecycle == CBM_SUBPROCESS_CANCEL_REQUESTED) { |
| 1379 | return true; |
| 1380 | } |
| 1381 | if (lifecycle != CBM_SUBPROCESS_ACTIVE) { |
| 1382 | return false; |
| 1383 | } |
| 1384 | int desired = CBM_SUBPROCESS_CANCEL_REQUESTED; |
| 1385 | if (atomic_compare_exchange_weak_explicit(&process->lifecycle, &lifecycle, desired, |
| 1386 | memory_order_acq_rel, memory_order_acquire)) { |
| 1387 | return true; |
| 1388 | } |
| 1389 | } |
| 1390 | } |
| 1391 | |
| 1392 | void cbm_subprocess_destroy(cbm_subprocess_t *process) { |
| 1393 | if (!process || atomic_load_explicit(&process->lifecycle, memory_order_acquire) != |
no outgoing calls