| … | |
… | |
| 37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
| 38 | */ |
38 | */ |
| 39 | |
39 | |
| 40 | /* useful reading: |
40 | /* useful reading: |
| 41 | * |
41 | * |
| 42 | * http://bugs.opensolaris.org/view_bug.do?bug_id=6268715 (random results) |
42 | * https://archive.is/jN6Ck (random results) |
| 43 | * http://bugs.opensolaris.org/view_bug.do?bug_id=6455223 (just totally broken) |
43 | * https://archive.is/bBikp (just totally broken) |
| 44 | * http://bugs.opensolaris.org/view_bug.do?bug_id=6873782 (manpage ETIME) |
44 | * https://archive.is/eJhmu (manpage ETIME) |
| 45 | * http://bugs.opensolaris.org/view_bug.do?bug_id=6874410 (implementation ETIME) |
45 | * https://archive.is/RbgYw (implementation ETIME) |
| 46 | * http://www.mail-archive.com/networking-discuss@opensolaris.org/msg11898.html ETIME vs. nget |
46 | * http://www.mail-archive.com/networking-discuss@opensolaris.org/msg11898.html ETIME vs. nget |
| 47 | * http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/event_port.c (libc) |
47 | * http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/gen/event_port.c (libc) |
| 48 | * http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/fs/portfs/port.c#1325 (kernel) |
48 | * http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/fs/portfs/port.c#1325 (kernel) |
| 49 | */ |
49 | */ |
| 50 | |
50 | |
| … | |
… | |
| 68 | ) |
68 | ) |
| 69 | ) |
69 | ) |
| 70 | { |
70 | { |
| 71 | if (errno == EBADFD) |
71 | if (errno == EBADFD) |
| 72 | { |
72 | { |
| 73 | assert (("libev: port_associate found invalid fd", errno != EBADFD); |
73 | assert (("libev: port_associate found invalid fd", errno != EBADFD)); |
| 74 | fd_kill (EV_A_ fd); |
74 | fd_kill (EV_A_ fd); |
| 75 | } |
75 | } |
| 76 | else |
76 | else |
| 77 | ev_syserr ("(libev) port_associate"); |
77 | ev_syserr ("(libev) port_associate"); |
| 78 | } |
78 | } |
| … | |
… | |
| 111 | EV_ACQUIRE_CB; |
111 | EV_ACQUIRE_CB; |
| 112 | |
112 | |
| 113 | /* port_getn may or may not set nget on error */ |
113 | /* port_getn may or may not set nget on error */ |
| 114 | /* so we rely on port_events [0].portev_source not being updated */ |
114 | /* so we rely on port_events [0].portev_source not being updated */ |
| 115 | if (res == -1 && errno != ETIME && errno != EINTR) |
115 | if (res == -1 && errno != ETIME && errno != EINTR) |
| 116 | ev_syserr ("(libev) port_getn (see http://bugs.opensolaris.org/view_bug.do?bug_id=6268715, try LIBEV_FLAGS=3 env variable)"); |
116 | ev_syserr ("(libev) port_getn (see https://archive.is/jN6Ck, try LIBEV_FLAGS=3 env variable)"); |
| 117 | |
117 | |
| 118 | for (i = 0; i < nget; ++i) |
118 | for (i = 0; i < nget; ++i) |
| 119 | { |
119 | { |
| 120 | if (port_events [i].portev_source == PORT_SOURCE_FD) |
120 | if (port_events [i].portev_source == PORT_SOURCE_FD) |
| 121 | { |
121 | { |
| … | |
… | |
| 130 | |
130 | |
| 131 | fd_change (EV_A_ fd, EV__IOFDSET); |
131 | fd_change (EV_A_ fd, EV__IOFDSET); |
| 132 | } |
132 | } |
| 133 | } |
133 | } |
| 134 | |
134 | |
| 135 | if (expect_false (nget == port_eventmax)) |
135 | if (ecb_expect_false (nget == port_eventmax)) |
| 136 | { |
136 | { |
| 137 | ev_free (port_events); |
137 | ev_free (port_events); |
| 138 | port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1); |
138 | port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1); |
| 139 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
139 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
| 140 | } |
140 | } |
| … | |
… | |
| 152 | |
152 | |
| 153 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
153 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
| 154 | |
154 | |
| 155 | /* if my reading of the opensolaris kernel sources are correct, then |
155 | /* if my reading of the opensolaris kernel sources are correct, then |
| 156 | * opensolaris does something very stupid: it checks if the time has already |
156 | * opensolaris does something very stupid: it checks if the time has already |
| 157 | * elapsed and doesn't round up if that is the case,m otherwise it DOES round |
157 | * elapsed and doesn't round up if that is the case, otherwise it DOES round |
| 158 | * up. Since we can't know what the case is, we need to guess by using a |
158 | * up. Since we can't know what the case is, we need to guess by using a |
| 159 | * "large enough" timeout. Normally, 1e-9 would be correct. |
159 | * "large enough" timeout. Normally, 1e-9 would be correct. |
| 160 | */ |
160 | */ |
| 161 | backend_mintime = 1e-3; /* needed to compensate for port_getn returning early */ |
161 | backend_mintime = EV_TS_CONST (1e-3); /* needed to compensate for port_getn returning early */ |
| 162 | backend_modify = port_modify; |
162 | backend_modify = port_modify; |
| 163 | backend_poll = port_poll; |
163 | backend_poll = port_poll; |
| 164 | |
164 | |
| 165 | port_eventmax = 64; /* initial number of events receivable per poll */ |
165 | port_eventmax = 64; /* initial number of events receivable per poll */ |
| 166 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
166 | port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax); |
