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Comparing libev/ev_kqueue.c (file contents):
Revision 1.56 by root, Thu Feb 18 04:48:05 2016 UTC vs.
Revision 1.61 by root, Sat Aug 17 05:30:16 2019 UTC

1/* 1/*
2 * libev kqueue backend 2 * libev kqueue backend
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013,2016,2019 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 *
… …
46inline_speed 46inline_speed
47void 47void
48kqueue_change (EV_P_ int fd, int filter, int flags, int fflags) 48kqueue_change (EV_P_ int fd, int filter, int flags, int fflags)
49{ 49{
50 ++kqueue_changecnt; 50 ++kqueue_changecnt;
51 array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, EMPTY2); 51 array_needsize (struct kevent, kqueue_changes, kqueue_changemax, kqueue_changecnt, array_needsize_noinit);
52 52
53 EV_SET (&kqueue_changes [kqueue_changecnt - 1], fd, filter, flags, fflags, 0, 0); 53 EV_SET (&kqueue_changes [kqueue_changecnt - 1], fd, filter, flags, fflags, 0, 0);
54} 54}
55 55
56/* OS X at least needs this */ 56/* OS X at least needs this */
… …
101 EV_TS_SET (ts, timeout); 101 EV_TS_SET (ts, timeout);
102 res = kevent (backend_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts); 102 res = kevent (backend_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts);
103 EV_ACQUIRE_CB; 103 EV_ACQUIRE_CB;
104 kqueue_changecnt = 0; 104 kqueue_changecnt = 0;
105 105
106 if (expect_false (res < 0)) 106 if (ecb_expect_false (res < 0))
107 { 107 {
108 if (errno != EINTR) 108 if (errno != EINTR)
109 ev_syserr ("(libev) kevent"); 109 ev_syserr ("(libev) kqueue kevent");
110 110
111 return; 111 return;
112 } 112 }
113 113
114 for (i = 0; i < res; ++i) 114 for (i = 0; i < res; ++i)
115 { 115 {
116 int fd = kqueue_events [i].ident; 116 int fd = kqueue_events [i].ident;
117 117
118 if (expect_false (kqueue_events [i].flags & EV_ERROR)) 118 if (ecb_expect_false (kqueue_events [i].flags & EV_ERROR))
119 { 119 {
120 int err = kqueue_events [i].data; 120 int err = kqueue_events [i].data;
121 121
122 /* we are only interested in errors for fds that we are interested in :) */ 122 /* we are only interested in errors for fds that we are interested in :) */
123 if (anfds [fd].events) 123 if (anfds [fd].events)
… …
127 else if (err == EBADF) /* on EBADF, we re-check the fd */ 127 else if (err == EBADF) /* on EBADF, we re-check the fd */
128 { 128 {
129 if (fd_valid (fd)) 129 if (fd_valid (fd))
130 kqueue_modify (EV_A_ fd, 0, anfds [fd].events); 130 kqueue_modify (EV_A_ fd, 0, anfds [fd].events);
131 else 131 else
132 {
133 assert (("libev: kqueue found invalid fd", 0));
132 fd_kill (EV_A_ fd); 134 fd_kill (EV_A_ fd);
135 }
133 } 136 }
134 else /* on all other errors, we error out on the fd */ 137 else /* on all other errors, we error out on the fd */
138 {
139 assert (("libev: kqueue found invalid fd", 0));
135 fd_kill (EV_A_ fd); 140 fd_kill (EV_A_ fd);
141 }
136 } 142 }
137 } 143 }
138 else 144 else
139 fd_event ( 145 fd_event (
140 EV_A_ 146 EV_A_
… …
143 : kqueue_events [i].filter == EVFILT_WRITE ? EV_WRITE 149 : kqueue_events [i].filter == EVFILT_WRITE ? EV_WRITE
144 : 0 150 : 0
145 ); 151 );
146 } 152 }
147 153
148 if (expect_false (res == kqueue_eventmax)) 154 if (ecb_expect_false (res == kqueue_eventmax))
149 { 155 {
150 ev_free (kqueue_events); 156 ev_free (kqueue_events);
151 kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_eventmax + 1); 157 kqueue_eventmax = array_nextsize (sizeof (struct kevent), kqueue_eventmax, kqueue_eventmax + 1);
152 kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax); 158 kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);
153 } 159 }
… …
162 if ((backend_fd = kqueue ()) < 0) 168 if ((backend_fd = kqueue ()) < 0)
163 return 0; 169 return 0;
164 170
165 fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ 171 fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
166 172
167 backend_mintime = 1e-9; /* apparently, they did the right thing in freebsd */ 173 backend_mintime = EV_TS_CONST (1e-9); /* apparently, they did the right thing in freebsd */
168 backend_modify = kqueue_modify; 174 backend_modify = kqueue_modify;
169 backend_poll = kqueue_poll; 175 backend_poll = kqueue_poll;
170 176
171 kqueue_eventmax = 64; /* initial number of events receivable per poll */ 177 kqueue_eventmax = 64; /* initial number of events receivable per poll */
172 kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax); 178 kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax);

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