| 565 | } |
| 566 | |
| 567 | static int fs_lock(FSDevice *fs, FSFile *f, const FSLock *lock) |
| 568 | { |
| 569 | int ret; |
| 570 | struct flock fl; |
| 571 | |
| 572 | /* XXX: lock directories too */ |
| 573 | if (!f->is_opened || f->is_dir) |
| 574 | return -P9_EPROTO; |
| 575 | |
| 576 | fl.l_type = lock->type; |
| 577 | fl.l_whence = SEEK_SET; |
| 578 | fl.l_start = lock->start; |
| 579 | fl.l_len = lock->length; |
| 580 | |
| 581 | ret = fcntl(f->u.fd, F_SETLK, &fl); |
| 582 | if (ret == 0) { |
| 583 | ret = P9_LOCK_SUCCESS; |
| 584 | } else if (errno == EAGAIN || errno == EACCES) { |
| 585 | ret = P9_LOCK_BLOCKED; |
| 586 | } else { |
| 587 | ret = -errno_to_p9(errno); |
| 588 | } |
| 589 | return ret; |
| 590 | } |
| 591 | |
| 592 | static int fs_getlock(FSDevice *fs, FSFile *f, FSLock *lock) |
| 593 | { |
nothing calls this directly
no test coverage detected