… | |
… | |
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 | { |
… | |
… | |
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); |