| 1 | /* |
1 | /* |
| 2 | * libev kqueue backend |
2 | * libev kqueue backend |
| 3 | * |
3 | * |
| 4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
| 5 | * All rights reserved. |
5 | * All rights reserved. |
| 6 | * |
6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
| 8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
| 9 | * |
9 | * |
| … | |
… | |
| 50 | array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, EMPTY2); |
50 | array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, EMPTY2); |
| 51 | |
51 | |
| 52 | EV_SET (&kqueue_changes [kqueue_changecnt - 1], fd, filter, flags, fflags, 0, 0); |
52 | EV_SET (&kqueue_changes [kqueue_changecnt - 1], fd, filter, flags, fflags, 0, 0); |
| 53 | } |
53 | } |
| 54 | |
54 | |
|
|
55 | /* OS X at least needs this */ |
|
|
56 | #ifndef EV_ENABLE |
|
|
57 | # define EV_ENABLE 0 |
|
|
58 | #endif |
| 55 | #ifndef NOTE_EOF |
59 | #ifndef NOTE_EOF |
| 56 | # define NOTE_EOF 0 |
60 | # define NOTE_EOF 0 |
| 57 | #endif |
61 | #endif |
| 58 | |
62 | |
| 59 | static void |
63 | static void |
| … | |
… | |
| 70 | |
74 | |
| 71 | /* to detect close/reopen reliably, we have to re-add */ |
75 | /* to detect close/reopen reliably, we have to re-add */ |
| 72 | /* event requests even when oev == nev */ |
76 | /* event requests even when oev == nev */ |
| 73 | |
77 | |
| 74 | if (nev & EV_READ) |
78 | if (nev & EV_READ) |
| 75 | kqueue_change (EV_A_ fd, EVFILT_READ , EV_ADD, NOTE_EOF); |
79 | kqueue_change (EV_A_ fd, EVFILT_READ , EV_ADD | EV_ENABLE, NOTE_EOF); |
| 76 | |
80 | |
| 77 | if (nev & EV_WRITE) |
81 | if (nev & EV_WRITE) |
| 78 | kqueue_change (EV_A_ fd, EVFILT_WRITE, EV_ADD, NOTE_EOF); |
82 | kqueue_change (EV_A_ fd, EVFILT_WRITE, EV_ADD | EV_ENABLE, NOTE_EOF); |
| 79 | } |
83 | } |
| 80 | |
84 | |
| 81 | static void |
85 | static void |
| 82 | kqueue_poll (EV_P_ ev_tstamp timeout) |
86 | kqueue_poll (EV_P_ ev_tstamp timeout) |
| 83 | { |
87 | { |
