| … | |
… | |
| 289 | ANIOCBP iocb = linuxaio_iocbps [fd]; |
289 | ANIOCBP iocb = linuxaio_iocbps [fd]; |
| 290 | |
290 | |
| 291 | if (iocb->io.aio_reqprio < 0) |
291 | if (iocb->io.aio_reqprio < 0) |
| 292 | { |
292 | { |
| 293 | /* we handed this fd over to epoll, so undo this first */ |
293 | /* we handed this fd over to epoll, so undo this first */ |
| 294 | /* we do it manually because the optimisations on epoll_modfy won't do us any good */ |
294 | /* we do it manually because the optimisations on epoll_modify won't do us any good */ |
| 295 | epoll_ctl (backend_fd, EPOLL_CTL_DEL, fd, 0); |
295 | epoll_ctl (backend_fd, EPOLL_CTL_DEL, fd, 0); |
| 296 | anfds [fd].emask = 0; |
296 | anfds [fd].emask = 0; |
| 297 | iocb->io.aio_reqprio = 0; |
297 | iocb->io.aio_reqprio = 0; |
| 298 | } |
298 | } |
| 299 | |
299 | |
| 300 | if (iocb->io.aio_buf) |
300 | if (iocb->io.aio_buf) |
| 301 | /* io_cancel always returns some error on relevant kernels, but works */ |
301 | { |
| 302 | evsys_io_cancel (linuxaio_ctx, &iocb->io, (struct io_event *)0); |
302 | evsys_io_cancel (linuxaio_ctx, &iocb->io, (struct io_event *)0); |
|
|
303 | /* on relevant kernels, io_cancel fails with EINPROGRES if everything is fine */ |
|
|
304 | assert (("libev: linuxaio unexpected io_cancel failed", errno != EINPROGRESS)); |
|
|
305 | } |
| 303 | |
306 | |
| 304 | if (nev) |
307 | if (nev) |
| 305 | { |
308 | { |
| 306 | iocb->io.aio_buf = |
309 | iocb->io.aio_buf = |
| 307 | (nev & EV_READ ? POLLIN : 0) |
310 | (nev & EV_READ ? POLLIN : 0) |
| … | |
… | |
| 508 | /* it's easiest to handle this mess in another iteration */ |
511 | /* it's easiest to handle this mess in another iteration */ |
| 509 | return; |
512 | return; |
| 510 | } |
513 | } |
| 511 | else if (errno == EBADF) |
514 | else if (errno == EBADF) |
| 512 | { |
515 | { |
|
|
516 | assert (("libev: event loop rejected bad fd", errno != EBADF)); |
| 513 | fd_kill (EV_A_ linuxaio_submits [submitted]->aio_fildes); |
517 | fd_kill (EV_A_ linuxaio_submits [submitted]->aio_fildes); |
| 514 | |
518 | |
| 515 | res = 1; /* skip this iocb */ |
519 | res = 1; /* skip this iocb */ |
| 516 | } |
520 | } |
| 517 | else |
521 | else |
| … | |
… | |
| 570 | void |
574 | void |
| 571 | linuxaio_destroy (EV_P) |
575 | linuxaio_destroy (EV_P) |
| 572 | { |
576 | { |
| 573 | epoll_destroy (EV_A); |
577 | epoll_destroy (EV_A); |
| 574 | linuxaio_free_iocbp (EV_A); |
578 | linuxaio_free_iocbp (EV_A); |
| 575 | evsys_io_destroy (linuxaio_ctx); |
579 | evsys_io_destroy (linuxaio_ctx); /* fails in child, aio context is destroyed */ |
| 576 | } |
580 | } |
| 577 | |
581 | |
| 578 | inline_size |
582 | inline_size |
| 579 | void |
583 | void |
| 580 | linuxaio_fork (EV_P) |
584 | linuxaio_fork (EV_P) |
| … | |
… | |
| 586 | linuxaio_iteration = 0; /* we start over in the child */ |
590 | linuxaio_iteration = 0; /* we start over in the child */ |
| 587 | |
591 | |
| 588 | while (linuxaio_io_setup (EV_A) < 0) |
592 | while (linuxaio_io_setup (EV_A) < 0) |
| 589 | ev_syserr ("(libev) linuxaio io_setup"); |
593 | ev_syserr ("(libev) linuxaio io_setup"); |
| 590 | |
594 | |
|
|
595 | /* forking epoll should also effectively unregister all fds from the backend */ |
| 591 | epoll_fork (EV_A); |
596 | epoll_fork (EV_A); |
| 592 | |
597 | |
| 593 | ev_io_stop (EV_A_ &linuxaio_epoll_w); |
598 | ev_io_stop (EV_A_ &linuxaio_epoll_w); |
| 594 | ev_io_set (EV_A_ &linuxaio_epoll_w, backend_fd, EV_READ); |
599 | ev_io_set (EV_A_ &linuxaio_epoll_w, backend_fd, EV_READ); |
| 595 | ev_io_start (EV_A_ &linuxaio_epoll_w); |
600 | ev_io_start (EV_A_ &linuxaio_epoll_w); |
