… | |
… | |
85 | kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax); |
85 | kqueue_events = (struct kevent *)ev_malloc (sizeof (struct kevent) * kqueue_eventmax); |
86 | } |
86 | } |
87 | |
87 | |
88 | ts.tv_sec = (time_t)timeout; |
88 | ts.tv_sec = (time_t)timeout; |
89 | ts.tv_nsec = (long)((timeout - (ev_tstamp)ts.tv_sec) * 1e9); |
89 | ts.tv_nsec = (long)((timeout - (ev_tstamp)ts.tv_sec) * 1e9); |
90 | res = kevent (kqueue_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts); |
90 | res = kevent (backend_fd, kqueue_changes, kqueue_changecnt, kqueue_events, kqueue_eventmax, &ts); |
91 | kqueue_changecnt = 0; |
91 | kqueue_changecnt = 0; |
92 | |
92 | |
93 | if (res < 0) |
93 | if (res < 0) |
94 | { |
94 | { |
95 | if (errno != EINTR) |
95 | if (errno != EINTR) |
… | |
… | |
100 | |
100 | |
101 | for (i = 0; i < res; ++i) |
101 | for (i = 0; i < res; ++i) |
102 | { |
102 | { |
103 | int fd = kqueue_events [i].ident; |
103 | int fd = kqueue_events [i].ident; |
104 | |
104 | |
105 | if (kqueue_events [i].flags & EV_ERROR) |
105 | if (expect_false (kqueue_events [i].flags & EV_ERROR)) |
106 | { |
106 | { |
107 | int err = kqueue_events [i].data; |
107 | int err = kqueue_events [i].data; |
108 | |
108 | |
109 | /* |
109 | /* |
110 | * errors that may happen |
110 | * errors that may happen |
… | |
… | |
154 | kqueue_init (EV_P_ int flags) |
154 | kqueue_init (EV_P_ int flags) |
155 | { |
155 | { |
156 | struct kevent ch, ev; |
156 | struct kevent ch, ev; |
157 | |
157 | |
158 | /* Initalize the kernel queue */ |
158 | /* Initalize the kernel queue */ |
159 | if ((kqueue_fd = kqueue ()) < 0) |
159 | if ((backend_fd = kqueue ()) < 0) |
160 | return 0; |
160 | return 0; |
161 | |
161 | |
162 | fcntl (kqueue_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
162 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */ |
163 | |
163 | |
164 | /* Check for Mac OS X kqueue bug. */ |
164 | /* Check for Mac OS X kqueue bug. */ |
165 | ch.ident = -1; |
165 | ch.ident = -1; |
166 | ch.filter = EVFILT_READ; |
166 | ch.filter = EVFILT_READ; |
167 | ch.flags = EV_ADD; |
167 | ch.flags = EV_ADD; |
… | |
… | |
169 | /* |
169 | /* |
170 | * If kqueue works, then kevent will succeed, and it will |
170 | * If kqueue works, then kevent will succeed, and it will |
171 | * stick an error in ev. If kqueue is broken, then |
171 | * stick an error in ev. If kqueue is broken, then |
172 | * kevent will fail. |
172 | * kevent will fail. |
173 | */ |
173 | */ |
174 | if (kevent (kqueue_fd, &ch, 1, &ev, 1, 0) != 1 |
174 | if (kevent (backend_fd, &ch, 1, &ev, 1, 0) != 1 |
175 | || ev.ident != -1 |
175 | || ev.ident != -1 |
176 | || ev.flags != EV_ERROR) |
176 | || ev.flags != EV_ERROR) |
177 | { |
177 | { |
178 | /* detected broken kqueue */ |
178 | /* detected broken kqueue */ |
179 | close (kqueue_fd); |
179 | close (backend_fd); |
180 | return 0; |
180 | return 0; |
181 | } |
181 | } |
182 | |
182 | |
183 | backend_fudge = 1e-3; /* needed to compensate for kevent returning early */ |
183 | backend_fudge = 1e-3; /* needed to compensate for kevent returning early */ |
184 | backend_modify = kqueue_modify; |
184 | backend_modify = kqueue_modify; |
… | |
… | |
195 | } |
195 | } |
196 | |
196 | |
197 | static void |
197 | static void |
198 | kqueue_destroy (EV_P) |
198 | kqueue_destroy (EV_P) |
199 | { |
199 | { |
200 | close (kqueue_fd); |
200 | close (backend_fd); |
201 | |
201 | |
202 | ev_free (kqueue_events); |
202 | ev_free (kqueue_events); |
203 | ev_free (kqueue_changes); |
203 | ev_free (kqueue_changes); |
204 | } |
204 | } |
205 | |
205 | |
206 | static void |
206 | static void |
207 | kqueue_fork (EV_P) |
207 | kqueue_fork (EV_P) |
208 | { |
208 | { |
209 | close (kqueue_fd); |
209 | close (backend_fd); |
210 | |
210 | |
211 | while ((kqueue_fd = kqueue ()) < 0) |
211 | while ((backend_fd = kqueue ()) < 0) |
212 | syserr ("(libev) kqueue"); |
212 | syserr ("(libev) kqueue"); |
213 | |
213 | |
214 | fcntl (kqueue_fd, F_SETFD, FD_CLOEXEC); |
214 | fcntl (backend_fd, F_SETFD, FD_CLOEXEC); |
215 | |
215 | |
216 | /* re-register interest in fds */ |
216 | /* re-register interest in fds */ |
217 | fd_rearm_all (EV_A); |
217 | fd_rearm_all (EV_A); |
218 | } |
218 | } |
219 | |
219 | |