| 1 | /* |
1 | /* |
| 2 | * libev kqueue backend |
2 | * libev kqueue backend |
| 3 | * |
3 | * |
| 4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 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 | * |
| … | |
… | |
| 37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
| 38 | */ |
38 | */ |
| 39 | |
39 | |
| 40 | #include <sys/types.h> |
40 | #include <sys/types.h> |
| 41 | #include <sys/time.h> |
41 | #include <sys/time.h> |
| 42 | #include <sys/queue.h> |
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| 43 | #include <sys/event.h> |
42 | #include <sys/event.h> |
| 44 | #include <string.h> |
43 | #include <string.h> |
| 45 | #include <errno.h> |
44 | #include <errno.h> |
| 46 | |
45 | |
| 47 | void inline_speed |
46 | void inline_speed |
| … | |
… | |
| 83 | kqueue_poll (EV_P_ ev_tstamp timeout) |
82 | kqueue_poll (EV_P_ ev_tstamp timeout) |
| 84 | { |
83 | { |
| 85 | int res, i; |
84 | int res, i; |
| 86 | struct timespec ts; |
85 | struct timespec ts; |
| 87 | |
86 | |
| 88 | EV_SUSPEND_CB; |
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| 89 | |
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| 90 | /* need to resize so there is enough space for errors */ |
87 | /* need to resize so there is enough space for errors */ |
| 91 | if (kqueue_changecnt > kqueue_eventmax) |
88 | if (kqueue_changecnt > kqueue_eventmax) |
| 92 | { |
89 | { |
| 93 | ev_free (kqueue_events); |
90 | ev_free (kqueue_events); |
| 94 | kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_changecnt); |
91 | kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_changecnt); |
| 95 | kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax); |
92 | kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax); |
| 96 | } |
93 | } |
| 97 | |
94 | |
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|
95 | EV_RELEASE_CB; |
| 98 | ts.tv_sec = (time_t)timeout; |
96 | ts.tv_sec = (time_t)timeout; |
| 99 | ts.tv_nsec = (long)((timeout - (ev_tstamp)ts.tv_sec) * 1e9); |
97 | ts.tv_nsec = (long)((timeout - (ev_tstamp)ts.tv_sec) * 1e9); |
| 100 | res = kevent (backend_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts); |
98 | res = kevent (backend_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts); |
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99 | EV_ACQUIRE_CB; |
| 101 | kqueue_changecnt = 0; |
100 | kqueue_changecnt = 0; |
| 102 | |
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| 103 | EV_RESUME_CB; |
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| 104 | |
101 | |
| 105 | if (expect_false (res < 0)) |
102 | if (expect_false (res < 0)) |
| 106 | { |
103 | { |
| 107 | if (errno != EINTR) |
104 | if (errno != EINTR) |
| 108 | ev_syserr ("(libev) kevent"); |
105 | ev_syserr ("(libev) kevent"); |
