… | |
… | |
39 | |
39 | |
40 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
41 | extern "C" { |
41 | extern "C" { |
42 | #endif |
42 | #endif |
43 | |
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
44 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
45 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
46 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
47 | # else |
48 | # else |
48 | # include "config.h" |
49 | # include "config.h" |
… | |
… | |
118 | # else |
119 | # else |
119 | # define EV_USE_INOTIFY 0 |
120 | # define EV_USE_INOTIFY 0 |
120 | # endif |
121 | # endif |
121 | # endif |
122 | # endif |
122 | |
123 | |
|
|
124 | # ifndef EV_USE_EVENTFD |
|
|
125 | # if HAVE_EVENTFD |
|
|
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
|
|
130 | # endif |
|
|
131 | |
123 | #endif |
132 | #endif |
124 | |
133 | |
125 | #include <math.h> |
134 | #include <math.h> |
126 | #include <stdlib.h> |
135 | #include <stdlib.h> |
127 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
152 | # ifndef EV_SELECT_IS_WINSOCKET |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
153 | # define EV_SELECT_IS_WINSOCKET 1 |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
154 | # endif |
163 | # endif |
155 | #endif |
164 | #endif |
156 | |
165 | |
157 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
158 | |
167 | |
159 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
160 | # define EV_USE_MONOTONIC 0 |
169 | # define EV_USE_MONOTONIC 0 |
161 | #endif |
170 | #endif |
162 | |
171 | |
… | |
… | |
179 | # define EV_USE_POLL 1 |
188 | # define EV_USE_POLL 1 |
180 | # endif |
189 | # endif |
181 | #endif |
190 | #endif |
182 | |
191 | |
183 | #ifndef EV_USE_EPOLL |
192 | #ifndef EV_USE_EPOLL |
|
|
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
194 | # define EV_USE_EPOLL 1 |
|
|
195 | # else |
184 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
|
|
197 | # endif |
185 | #endif |
198 | #endif |
186 | |
199 | |
187 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
188 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
189 | #endif |
202 | #endif |
… | |
… | |
191 | #ifndef EV_USE_PORT |
204 | #ifndef EV_USE_PORT |
192 | # define EV_USE_PORT 0 |
205 | # define EV_USE_PORT 0 |
193 | #endif |
206 | #endif |
194 | |
207 | |
195 | #ifndef EV_USE_INOTIFY |
208 | #ifndef EV_USE_INOTIFY |
|
|
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
210 | # define EV_USE_INOTIFY 1 |
|
|
211 | # else |
196 | # define EV_USE_INOTIFY 0 |
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | # endif |
197 | #endif |
214 | #endif |
198 | |
215 | |
199 | #ifndef EV_PID_HASHSIZE |
216 | #ifndef EV_PID_HASHSIZE |
200 | # if EV_MINIMAL |
217 | # if EV_MINIMAL |
201 | # define EV_PID_HASHSIZE 1 |
218 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
210 | # else |
227 | # else |
211 | # define EV_INOTIFY_HASHSIZE 16 |
228 | # define EV_INOTIFY_HASHSIZE 16 |
212 | # endif |
229 | # endif |
213 | #endif |
230 | #endif |
214 | |
231 | |
215 | /**/ |
232 | #ifndef EV_USE_EVENTFD |
|
|
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
234 | # define EV_USE_EVENTFD 1 |
|
|
235 | # else |
|
|
236 | # define EV_USE_EVENTFD 0 |
|
|
237 | # endif |
|
|
238 | #endif |
|
|
239 | |
|
|
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
216 | |
241 | |
217 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
219 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
220 | #endif |
245 | #endif |
… | |
… | |
239 | # include <sys/inotify.h> |
264 | # include <sys/inotify.h> |
240 | #endif |
265 | #endif |
241 | |
266 | |
242 | #if EV_SELECT_IS_WINSOCKET |
267 | #if EV_SELECT_IS_WINSOCKET |
243 | # include <winsock.h> |
268 | # include <winsock.h> |
|
|
269 | #endif |
|
|
270 | |
|
|
271 | #if EV_USE_EVENTFD |
|
|
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
273 | int eventfd (unsigned int initval, int flags); |
244 | #endif |
274 | #endif |
245 | |
275 | |
246 | /**/ |
276 | /**/ |
247 | |
277 | |
248 | /* |
278 | /* |
… | |
… | |
802 | static void noinline |
832 | static void noinline |
803 | evpipe_init (EV_P) |
833 | evpipe_init (EV_P) |
804 | { |
834 | { |
805 | if (!ev_is_active (&pipeev)) |
835 | if (!ev_is_active (&pipeev)) |
806 | { |
836 | { |
|
|
837 | #if EV_USE_EVENTFD |
|
|
838 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
839 | { |
|
|
840 | evpipe [0] = -1; |
|
|
841 | fd_intern (evfd); |
|
|
842 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
843 | } |
|
|
844 | else |
|
|
845 | #endif |
|
|
846 | { |
807 | while (pipe (evpipe)) |
847 | while (pipe (evpipe)) |
808 | syserr ("(libev) error creating signal/async pipe"); |
848 | syserr ("(libev) error creating signal/async pipe"); |
809 | |
849 | |
810 | fd_intern (evpipe [0]); |
850 | fd_intern (evpipe [0]); |
811 | fd_intern (evpipe [1]); |
851 | fd_intern (evpipe [1]); |
812 | |
|
|
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
852 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
853 | } |
|
|
854 | |
814 | ev_io_start (EV_A_ &pipeev); |
855 | ev_io_start (EV_A_ &pipeev); |
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
856 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
816 | } |
857 | } |
817 | } |
858 | } |
818 | |
859 | |
… | |
… | |
822 | if (!*flag) |
863 | if (!*flag) |
823 | { |
864 | { |
824 | int old_errno = errno; /* save errno because write might clobber it */ |
865 | int old_errno = errno; /* save errno because write might clobber it */ |
825 | |
866 | |
826 | *flag = 1; |
867 | *flag = 1; |
|
|
868 | |
|
|
869 | #if EV_USE_EVENTFD |
|
|
870 | if (evfd >= 0) |
|
|
871 | { |
|
|
872 | uint64_t counter = 1; |
|
|
873 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
874 | } |
|
|
875 | else |
|
|
876 | #endif |
827 | write (evpipe [1], &old_errno, 1); |
877 | write (evpipe [1], &old_errno, 1); |
828 | |
878 | |
829 | errno = old_errno; |
879 | errno = old_errno; |
830 | } |
880 | } |
831 | } |
881 | } |
832 | |
882 | |
833 | static void |
883 | static void |
834 | pipecb (EV_P_ ev_io *iow, int revents) |
884 | pipecb (EV_P_ ev_io *iow, int revents) |
835 | { |
885 | { |
|
|
886 | #if EV_USE_EVENTFD |
|
|
887 | if (evfd >= 0) |
836 | { |
888 | { |
837 | int dummy; |
889 | uint64_t counter = 1; |
|
|
890 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
891 | } |
|
|
892 | else |
|
|
893 | #endif |
|
|
894 | { |
|
|
895 | char dummy; |
838 | read (evpipe [0], &dummy, 1); |
896 | read (evpipe [0], &dummy, 1); |
839 | } |
897 | } |
840 | |
898 | |
841 | if (gotsig && ev_is_default_loop (EV_A)) |
899 | if (gotsig && ev_is_default_loop (EV_A)) |
842 | { |
900 | { |
843 | int signum; |
901 | int signum; |
844 | gotsig = 0; |
902 | gotsig = 0; |
… | |
… | |
1139 | if (ev_is_active (&pipeev)) |
1197 | if (ev_is_active (&pipeev)) |
1140 | { |
1198 | { |
1141 | ev_ref (EV_A); /* signal watcher */ |
1199 | ev_ref (EV_A); /* signal watcher */ |
1142 | ev_io_stop (EV_A_ &pipeev); |
1200 | ev_io_stop (EV_A_ &pipeev); |
1143 | |
1201 | |
1144 | close (evpipe [0]); evpipe [0] = 0; |
1202 | #if EV_USE_EVENTFD |
1145 | close (evpipe [1]); evpipe [1] = 0; |
1203 | if (evfd >= 0) |
|
|
1204 | close (evfd); |
|
|
1205 | #endif |
|
|
1206 | |
|
|
1207 | if (evpipe [0] >= 0) |
|
|
1208 | { |
|
|
1209 | close (evpipe [0]); |
|
|
1210 | close (evpipe [1]); |
|
|
1211 | } |
1146 | } |
1212 | } |
1147 | |
1213 | |
1148 | #if EV_USE_INOTIFY |
1214 | #if EV_USE_INOTIFY |
1149 | if (fs_fd >= 0) |
1215 | if (fs_fd >= 0) |
1150 | close (fs_fd); |
1216 | close (fs_fd); |
… | |
… | |
1224 | gotasync = 1; |
1290 | gotasync = 1; |
1225 | #endif |
1291 | #endif |
1226 | |
1292 | |
1227 | ev_ref (EV_A); |
1293 | ev_ref (EV_A); |
1228 | ev_io_stop (EV_A_ &pipeev); |
1294 | ev_io_stop (EV_A_ &pipeev); |
|
|
1295 | |
|
|
1296 | #if EV_USE_EVENTFD |
|
|
1297 | if (evfd >= 0) |
|
|
1298 | close (evfd); |
|
|
1299 | #endif |
|
|
1300 | |
|
|
1301 | if (evpipe [0] >= 0) |
|
|
1302 | { |
1229 | close (evpipe [0]); |
1303 | close (evpipe [0]); |
1230 | close (evpipe [1]); |
1304 | close (evpipe [1]); |
|
|
1305 | } |
1231 | |
1306 | |
1232 | evpipe_init (EV_A); |
1307 | evpipe_init (EV_A); |
1233 | /* now iterate over everything, in case we missed something */ |
1308 | /* now iterate over everything, in case we missed something */ |
1234 | pipecb (EV_A_ &pipeev, EV_READ); |
1309 | pipecb (EV_A_ &pipeev, EV_READ); |
1235 | } |
1310 | } |