1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 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 |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
|
|
10 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
11 | * this list of conditions and the following disclaimer. |
|
|
12 | * |
|
|
13 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
14 | * notice, this list of conditions and the following disclaimer in the |
|
|
15 | * documentation and/or other materials provided with the distribution. |
|
|
16 | * |
|
|
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
|
22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
|
23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
|
24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
|
25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
|
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
|
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
|
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
|
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
|
|
46 | # ifdef EV_CONFIG_H |
|
|
47 | # include EV_CONFIG_H |
|
|
48 | # else |
37 | # include "config.h" |
49 | # include "config.h" |
|
|
50 | # endif |
38 | |
51 | |
39 | # if HAVE_CLOCK_GETTIME |
52 | # if HAVE_CLOCK_GETTIME |
|
|
53 | # ifndef EV_USE_MONOTONIC |
40 | # define EV_USE_MONOTONIC 1 |
54 | # define EV_USE_MONOTONIC 1 |
|
|
55 | # endif |
|
|
56 | # ifndef EV_USE_REALTIME |
41 | # define EV_USE_REALTIME 1 |
57 | # define EV_USE_REALTIME 1 |
|
|
58 | # endif |
|
|
59 | # else |
|
|
60 | # ifndef EV_USE_MONOTONIC |
|
|
61 | # define EV_USE_MONOTONIC 0 |
|
|
62 | # endif |
|
|
63 | # ifndef EV_USE_REALTIME |
|
|
64 | # define EV_USE_REALTIME 0 |
|
|
65 | # endif |
42 | # endif |
66 | # endif |
43 | |
67 | |
44 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
68 | # ifndef EV_USE_NANOSLEEP |
|
|
69 | # if HAVE_NANOSLEEP |
45 | # define EV_USE_SELECT 1 |
70 | # define EV_USE_NANOSLEEP 1 |
|
|
71 | # else |
|
|
72 | # define EV_USE_NANOSLEEP 0 |
|
|
73 | # endif |
46 | # endif |
74 | # endif |
47 | |
75 | |
48 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
|
|
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
49 | # define EV_USE_POLL 1 |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
50 | # endif |
82 | # endif |
51 | |
83 | |
52 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
53 | # define EV_USE_EPOLL 1 |
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
|
|
88 | # define EV_USE_POLL 0 |
|
|
89 | # endif |
54 | # endif |
90 | # endif |
55 | |
91 | |
56 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
57 | # define EV_USE_KQUEUE 1 |
94 | # define EV_USE_EPOLL 1 |
|
|
95 | # else |
|
|
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
58 | # endif |
98 | # endif |
|
|
99 | |
|
|
100 | # ifndef EV_USE_KQUEUE |
|
|
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
|
|
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
|
|
106 | # endif |
|
|
107 | |
|
|
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
110 | # define EV_USE_PORT 1 |
|
|
111 | # else |
|
|
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
|
|
114 | # endif |
59 | |
115 | |
|
|
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
118 | # define EV_USE_INOTIFY 1 |
|
|
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
|
|
121 | # endif |
|
|
122 | # endif |
|
|
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 | |
60 | #endif |
132 | #endif |
61 | |
133 | |
62 | #include <math.h> |
134 | #include <math.h> |
63 | #include <stdlib.h> |
135 | #include <stdlib.h> |
64 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
71 | #include <sys/types.h> |
143 | #include <sys/types.h> |
72 | #include <time.h> |
144 | #include <time.h> |
73 | |
145 | |
74 | #include <signal.h> |
146 | #include <signal.h> |
75 | |
147 | |
76 | #ifndef WIN32 |
|
|
77 | # include <unistd.h> |
|
|
78 | # include <sys/time.h> |
|
|
79 | # include <sys/wait.h> |
|
|
80 | #endif |
|
|
81 | /**/ |
|
|
82 | |
|
|
83 | #ifndef EV_USE_MONOTONIC |
|
|
84 | # define EV_USE_MONOTONIC 1 |
|
|
85 | #endif |
|
|
86 | |
|
|
87 | #ifndef EV_USE_SELECT |
|
|
88 | # define EV_USE_SELECT 1 |
|
|
89 | #endif |
|
|
90 | |
|
|
91 | #ifndef EV_USE_POLL |
|
|
92 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
|
|
93 | #endif |
|
|
94 | |
|
|
95 | #ifndef EV_USE_EPOLL |
|
|
96 | # define EV_USE_EPOLL 0 |
|
|
97 | #endif |
|
|
98 | |
|
|
99 | #ifndef EV_USE_KQUEUE |
|
|
100 | # define EV_USE_KQUEUE 0 |
|
|
101 | #endif |
|
|
102 | |
|
|
103 | #ifndef EV_USE_WIN32 |
|
|
104 | # ifdef WIN32 |
|
|
105 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
|
|
106 | # undef EV_USE_SELECT |
|
|
107 | # define EV_USE_SELECT 1 |
|
|
108 | # else |
|
|
109 | # define EV_USE_WIN32 0 |
|
|
110 | # endif |
|
|
111 | #endif |
|
|
112 | |
|
|
113 | #ifndef EV_USE_REALTIME |
|
|
114 | # define EV_USE_REALTIME 1 |
|
|
115 | #endif |
|
|
116 | |
|
|
117 | /**/ |
|
|
118 | |
|
|
119 | #ifndef CLOCK_MONOTONIC |
|
|
120 | # undef EV_USE_MONOTONIC |
|
|
121 | # define EV_USE_MONOTONIC 0 |
|
|
122 | #endif |
|
|
123 | |
|
|
124 | #ifndef CLOCK_REALTIME |
|
|
125 | # undef EV_USE_REALTIME |
|
|
126 | # define EV_USE_REALTIME 0 |
|
|
127 | #endif |
|
|
128 | |
|
|
129 | /**/ |
|
|
130 | |
|
|
131 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
|
|
132 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
|
|
133 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
134 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
|
|
135 | |
|
|
136 | #ifdef EV_H |
148 | #ifdef EV_H |
137 | # include EV_H |
149 | # include EV_H |
138 | #else |
150 | #else |
139 | # include "ev.h" |
151 | # include "ev.h" |
140 | #endif |
152 | #endif |
141 | |
153 | |
|
|
154 | #ifndef _WIN32 |
|
|
155 | # include <sys/time.h> |
|
|
156 | # include <sys/wait.h> |
|
|
157 | # include <unistd.h> |
|
|
158 | #else |
|
|
159 | # define WIN32_LEAN_AND_MEAN |
|
|
160 | # include <windows.h> |
|
|
161 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
162 | # define EV_SELECT_IS_WINSOCKET 1 |
|
|
163 | # endif |
|
|
164 | #endif |
|
|
165 | |
|
|
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
167 | |
|
|
168 | #ifndef EV_USE_MONOTONIC |
|
|
169 | # define EV_USE_MONOTONIC 0 |
|
|
170 | #endif |
|
|
171 | |
|
|
172 | #ifndef EV_USE_REALTIME |
|
|
173 | # define EV_USE_REALTIME 0 |
|
|
174 | #endif |
|
|
175 | |
|
|
176 | #ifndef EV_USE_NANOSLEEP |
|
|
177 | # define EV_USE_NANOSLEEP 0 |
|
|
178 | #endif |
|
|
179 | |
|
|
180 | #ifndef EV_USE_SELECT |
|
|
181 | # define EV_USE_SELECT 1 |
|
|
182 | #endif |
|
|
183 | |
|
|
184 | #ifndef EV_USE_POLL |
|
|
185 | # ifdef _WIN32 |
|
|
186 | # define EV_USE_POLL 0 |
|
|
187 | # else |
|
|
188 | # define EV_USE_POLL 1 |
|
|
189 | # endif |
|
|
190 | #endif |
|
|
191 | |
|
|
192 | #ifndef EV_USE_EPOLL |
|
|
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
194 | # define EV_USE_EPOLL 1 |
|
|
195 | # else |
|
|
196 | # define EV_USE_EPOLL 0 |
|
|
197 | # endif |
|
|
198 | #endif |
|
|
199 | |
|
|
200 | #ifndef EV_USE_KQUEUE |
|
|
201 | # define EV_USE_KQUEUE 0 |
|
|
202 | #endif |
|
|
203 | |
|
|
204 | #ifndef EV_USE_PORT |
|
|
205 | # define EV_USE_PORT 0 |
|
|
206 | #endif |
|
|
207 | |
|
|
208 | #ifndef EV_USE_INOTIFY |
|
|
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
210 | # define EV_USE_INOTIFY 1 |
|
|
211 | # else |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | # endif |
|
|
214 | #endif |
|
|
215 | |
|
|
216 | #ifndef EV_PID_HASHSIZE |
|
|
217 | # if EV_MINIMAL |
|
|
218 | # define EV_PID_HASHSIZE 1 |
|
|
219 | # else |
|
|
220 | # define EV_PID_HASHSIZE 16 |
|
|
221 | # endif |
|
|
222 | #endif |
|
|
223 | |
|
|
224 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
225 | # if EV_MINIMAL |
|
|
226 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
227 | # else |
|
|
228 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
229 | # endif |
|
|
230 | #endif |
|
|
231 | |
|
|
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 | #ifndef EV_USE_4HEAP |
|
|
241 | # define EV_USE_4HEAP !EV_MINIMAL |
|
|
242 | #endif |
|
|
243 | |
|
|
244 | #ifndef EV_HEAP_CACHE_AT |
|
|
245 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
246 | #endif |
|
|
247 | |
|
|
248 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
249 | |
|
|
250 | #ifndef CLOCK_MONOTONIC |
|
|
251 | # undef EV_USE_MONOTONIC |
|
|
252 | # define EV_USE_MONOTONIC 0 |
|
|
253 | #endif |
|
|
254 | |
|
|
255 | #ifndef CLOCK_REALTIME |
|
|
256 | # undef EV_USE_REALTIME |
|
|
257 | # define EV_USE_REALTIME 0 |
|
|
258 | #endif |
|
|
259 | |
|
|
260 | #if !EV_STAT_ENABLE |
|
|
261 | # undef EV_USE_INOTIFY |
|
|
262 | # define EV_USE_INOTIFY 0 |
|
|
263 | #endif |
|
|
264 | |
|
|
265 | #if !EV_USE_NANOSLEEP |
|
|
266 | # ifndef _WIN32 |
|
|
267 | # include <sys/select.h> |
|
|
268 | # endif |
|
|
269 | #endif |
|
|
270 | |
|
|
271 | #if EV_USE_INOTIFY |
|
|
272 | # include <sys/inotify.h> |
|
|
273 | #endif |
|
|
274 | |
|
|
275 | #if EV_SELECT_IS_WINSOCKET |
|
|
276 | # include <winsock.h> |
|
|
277 | #endif |
|
|
278 | |
|
|
279 | #if EV_USE_EVENTFD |
|
|
280 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
281 | # include <stdint.h> |
|
|
282 | # ifdef __cplusplus |
|
|
283 | extern "C" { |
|
|
284 | # endif |
|
|
285 | int eventfd (unsigned int initval, int flags); |
|
|
286 | # ifdef __cplusplus |
|
|
287 | } |
|
|
288 | # endif |
|
|
289 | #endif |
|
|
290 | |
|
|
291 | /**/ |
|
|
292 | |
|
|
293 | /* |
|
|
294 | * This is used to avoid floating point rounding problems. |
|
|
295 | * It is added to ev_rt_now when scheduling periodics |
|
|
296 | * to ensure progress, time-wise, even when rounding |
|
|
297 | * errors are against us. |
|
|
298 | * This value is good at least till the year 4000. |
|
|
299 | * Better solutions welcome. |
|
|
300 | */ |
|
|
301 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
|
|
302 | |
|
|
303 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
|
|
304 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
|
|
305 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
306 | |
142 | #if __GNUC__ >= 3 |
307 | #if __GNUC__ >= 4 |
143 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
308 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
144 | # define inline inline |
309 | # define noinline __attribute__ ((noinline)) |
145 | #else |
310 | #else |
146 | # define expect(expr,value) (expr) |
311 | # define expect(expr,value) (expr) |
147 | # define inline static |
312 | # define noinline |
|
|
313 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
314 | # define inline |
|
|
315 | # endif |
148 | #endif |
316 | #endif |
149 | |
317 | |
150 | #define expect_false(expr) expect ((expr) != 0, 0) |
318 | #define expect_false(expr) expect ((expr) != 0, 0) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
319 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
320 | #define inline_size static inline |
|
|
321 | |
|
|
322 | #if EV_MINIMAL |
|
|
323 | # define inline_speed static noinline |
|
|
324 | #else |
|
|
325 | # define inline_speed static inline |
|
|
326 | #endif |
152 | |
327 | |
153 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
328 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
154 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
329 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
155 | |
330 | |
|
|
331 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
332 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
333 | |
156 | typedef struct ev_watcher *W; |
334 | typedef ev_watcher *W; |
157 | typedef struct ev_watcher_list *WL; |
335 | typedef ev_watcher_list *WL; |
158 | typedef struct ev_watcher_time *WT; |
336 | typedef ev_watcher_time *WT; |
159 | |
337 | |
|
|
338 | #define ev_active(w) ((W)(w))->active |
|
|
339 | #define ev_at(w) ((WT)(w))->at |
|
|
340 | |
|
|
341 | #if EV_USE_MONOTONIC |
|
|
342 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
343 | /* giving it a reasonably high chance of working on typical architetcures */ |
160 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
344 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
345 | #endif |
161 | |
346 | |
|
|
347 | #ifdef _WIN32 |
162 | #include "ev_win32.c" |
348 | # include "ev_win32.c" |
|
|
349 | #endif |
163 | |
350 | |
164 | /*****************************************************************************/ |
351 | /*****************************************************************************/ |
165 | |
352 | |
166 | static void (*syserr_cb)(const char *msg); |
353 | static void (*syserr_cb)(const char *msg); |
167 | |
354 | |
|
|
355 | void |
168 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
356 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
169 | { |
357 | { |
170 | syserr_cb = cb; |
358 | syserr_cb = cb; |
171 | } |
359 | } |
172 | |
360 | |
173 | static void |
361 | static void noinline |
174 | syserr (const char *msg) |
362 | syserr (const char *msg) |
175 | { |
363 | { |
176 | if (!msg) |
364 | if (!msg) |
177 | msg = "(libev) system error"; |
365 | msg = "(libev) system error"; |
178 | |
366 | |
… | |
… | |
183 | perror (msg); |
371 | perror (msg); |
184 | abort (); |
372 | abort (); |
185 | } |
373 | } |
186 | } |
374 | } |
187 | |
375 | |
|
|
376 | static void * |
|
|
377 | ev_realloc_emul (void *ptr, long size) |
|
|
378 | { |
|
|
379 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
380 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
381 | * the single unix specification, so work around them here. |
|
|
382 | */ |
|
|
383 | |
|
|
384 | if (size) |
|
|
385 | return realloc (ptr, size); |
|
|
386 | |
|
|
387 | free (ptr); |
|
|
388 | return 0; |
|
|
389 | } |
|
|
390 | |
188 | static void *(*alloc)(void *ptr, long size); |
391 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
189 | |
392 | |
|
|
393 | void |
190 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
394 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
191 | { |
395 | { |
192 | alloc = cb; |
396 | alloc = cb; |
193 | } |
397 | } |
194 | |
398 | |
195 | static void * |
399 | inline_speed void * |
196 | ev_realloc (void *ptr, long size) |
400 | ev_realloc (void *ptr, long size) |
197 | { |
401 | { |
198 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
402 | ptr = alloc (ptr, size); |
199 | |
403 | |
200 | if (!ptr && size) |
404 | if (!ptr && size) |
201 | { |
405 | { |
202 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
406 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
203 | abort (); |
407 | abort (); |
… | |
… | |
214 | typedef struct |
418 | typedef struct |
215 | { |
419 | { |
216 | WL head; |
420 | WL head; |
217 | unsigned char events; |
421 | unsigned char events; |
218 | unsigned char reify; |
422 | unsigned char reify; |
|
|
423 | #if EV_SELECT_IS_WINSOCKET |
|
|
424 | SOCKET handle; |
|
|
425 | #endif |
219 | } ANFD; |
426 | } ANFD; |
220 | |
427 | |
221 | typedef struct |
428 | typedef struct |
222 | { |
429 | { |
223 | W w; |
430 | W w; |
224 | int events; |
431 | int events; |
225 | } ANPENDING; |
432 | } ANPENDING; |
226 | |
433 | |
|
|
434 | #if EV_USE_INOTIFY |
|
|
435 | /* hash table entry per inotify-id */ |
|
|
436 | typedef struct |
|
|
437 | { |
|
|
438 | WL head; |
|
|
439 | } ANFS; |
|
|
440 | #endif |
|
|
441 | |
|
|
442 | /* Heap Entry */ |
|
|
443 | #if EV_HEAP_CACHE_AT |
|
|
444 | typedef struct { |
|
|
445 | ev_tstamp at; |
|
|
446 | WT w; |
|
|
447 | } ANHE; |
|
|
448 | |
|
|
449 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
450 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
451 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
452 | #else |
|
|
453 | typedef WT ANHE; |
|
|
454 | |
|
|
455 | #define ANHE_w(he) (he) |
|
|
456 | #define ANHE_at(he) (he)->at |
|
|
457 | #define ANHE_at_set(he) |
|
|
458 | #endif |
|
|
459 | |
227 | #if EV_MULTIPLICITY |
460 | #if EV_MULTIPLICITY |
228 | |
461 | |
229 | struct ev_loop |
462 | struct ev_loop |
230 | { |
463 | { |
231 | ev_tstamp ev_rt_now; |
464 | ev_tstamp ev_rt_now; |
|
|
465 | #define ev_rt_now ((loop)->ev_rt_now) |
232 | #define VAR(name,decl) decl; |
466 | #define VAR(name,decl) decl; |
233 | #include "ev_vars.h" |
467 | #include "ev_vars.h" |
234 | #undef VAR |
468 | #undef VAR |
235 | }; |
469 | }; |
236 | #include "ev_wrap.h" |
470 | #include "ev_wrap.h" |
237 | |
471 | |
238 | struct ev_loop default_loop_struct; |
472 | static struct ev_loop default_loop_struct; |
239 | static struct ev_loop *default_loop; |
473 | struct ev_loop *ev_default_loop_ptr; |
240 | |
474 | |
241 | #else |
475 | #else |
242 | |
476 | |
243 | ev_tstamp ev_rt_now; |
477 | ev_tstamp ev_rt_now; |
244 | #define VAR(name,decl) static decl; |
478 | #define VAR(name,decl) static decl; |
245 | #include "ev_vars.h" |
479 | #include "ev_vars.h" |
246 | #undef VAR |
480 | #undef VAR |
247 | |
481 | |
248 | static int default_loop; |
482 | static int ev_default_loop_ptr; |
249 | |
483 | |
250 | #endif |
484 | #endif |
251 | |
485 | |
252 | /*****************************************************************************/ |
486 | /*****************************************************************************/ |
253 | |
487 | |
254 | inline ev_tstamp |
488 | ev_tstamp |
255 | ev_time (void) |
489 | ev_time (void) |
256 | { |
490 | { |
257 | #if EV_USE_REALTIME |
491 | #if EV_USE_REALTIME |
258 | struct timespec ts; |
492 | struct timespec ts; |
259 | clock_gettime (CLOCK_REALTIME, &ts); |
493 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
263 | gettimeofday (&tv, 0); |
497 | gettimeofday (&tv, 0); |
264 | return tv.tv_sec + tv.tv_usec * 1e-6; |
498 | return tv.tv_sec + tv.tv_usec * 1e-6; |
265 | #endif |
499 | #endif |
266 | } |
500 | } |
267 | |
501 | |
268 | inline ev_tstamp |
502 | ev_tstamp inline_size |
269 | get_clock (void) |
503 | get_clock (void) |
270 | { |
504 | { |
271 | #if EV_USE_MONOTONIC |
505 | #if EV_USE_MONOTONIC |
272 | if (expect_true (have_monotonic)) |
506 | if (expect_true (have_monotonic)) |
273 | { |
507 | { |
… | |
… | |
286 | { |
520 | { |
287 | return ev_rt_now; |
521 | return ev_rt_now; |
288 | } |
522 | } |
289 | #endif |
523 | #endif |
290 | |
524 | |
291 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
525 | void |
|
|
526 | ev_sleep (ev_tstamp delay) |
|
|
527 | { |
|
|
528 | if (delay > 0.) |
|
|
529 | { |
|
|
530 | #if EV_USE_NANOSLEEP |
|
|
531 | struct timespec ts; |
|
|
532 | |
|
|
533 | ts.tv_sec = (time_t)delay; |
|
|
534 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
535 | |
|
|
536 | nanosleep (&ts, 0); |
|
|
537 | #elif defined(_WIN32) |
|
|
538 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
539 | #else |
|
|
540 | struct timeval tv; |
|
|
541 | |
|
|
542 | tv.tv_sec = (time_t)delay; |
|
|
543 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
544 | |
|
|
545 | select (0, 0, 0, 0, &tv); |
|
|
546 | #endif |
|
|
547 | } |
|
|
548 | } |
|
|
549 | |
|
|
550 | /*****************************************************************************/ |
|
|
551 | |
|
|
552 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
553 | |
|
|
554 | int inline_size |
|
|
555 | array_nextsize (int elem, int cur, int cnt) |
|
|
556 | { |
|
|
557 | int ncur = cur + 1; |
|
|
558 | |
|
|
559 | do |
|
|
560 | ncur <<= 1; |
|
|
561 | while (cnt > ncur); |
|
|
562 | |
|
|
563 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
564 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
565 | { |
|
|
566 | ncur *= elem; |
|
|
567 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
568 | ncur = ncur - sizeof (void *) * 4; |
|
|
569 | ncur /= elem; |
|
|
570 | } |
|
|
571 | |
|
|
572 | return ncur; |
|
|
573 | } |
|
|
574 | |
|
|
575 | static noinline void * |
|
|
576 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
577 | { |
|
|
578 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
579 | return ev_realloc (base, elem * *cur); |
|
|
580 | } |
292 | |
581 | |
293 | #define array_needsize(type,base,cur,cnt,init) \ |
582 | #define array_needsize(type,base,cur,cnt,init) \ |
294 | if (expect_false ((cnt) > cur)) \ |
583 | if (expect_false ((cnt) > (cur))) \ |
295 | { \ |
584 | { \ |
296 | int newcnt = cur; \ |
585 | int ocur_ = (cur); \ |
297 | do \ |
586 | (base) = (type *)array_realloc \ |
298 | { \ |
587 | (sizeof (type), (base), &(cur), (cnt)); \ |
299 | newcnt = array_roundsize (type, newcnt << 1); \ |
588 | init ((base) + (ocur_), (cur) - ocur_); \ |
300 | } \ |
|
|
301 | while ((cnt) > newcnt); \ |
|
|
302 | \ |
|
|
303 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
304 | init (base + cur, newcnt - cur); \ |
|
|
305 | cur = newcnt; \ |
|
|
306 | } |
589 | } |
307 | |
590 | |
|
|
591 | #if 0 |
308 | #define array_slim(type,stem) \ |
592 | #define array_slim(type,stem) \ |
309 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
593 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
310 | { \ |
594 | { \ |
311 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
595 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
312 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
596 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
313 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
597 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
314 | } |
598 | } |
315 | |
599 | #endif |
316 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
317 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
318 | #define array_free_microshit(stem) \ |
|
|
319 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
320 | |
600 | |
321 | #define array_free(stem, idx) \ |
601 | #define array_free(stem, idx) \ |
322 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
602 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
323 | |
603 | |
324 | /*****************************************************************************/ |
604 | /*****************************************************************************/ |
325 | |
605 | |
326 | static void |
606 | void noinline |
|
|
607 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
608 | { |
|
|
609 | W w_ = (W)w; |
|
|
610 | int pri = ABSPRI (w_); |
|
|
611 | |
|
|
612 | if (expect_false (w_->pending)) |
|
|
613 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
614 | else |
|
|
615 | { |
|
|
616 | w_->pending = ++pendingcnt [pri]; |
|
|
617 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
618 | pendings [pri][w_->pending - 1].w = w_; |
|
|
619 | pendings [pri][w_->pending - 1].events = revents; |
|
|
620 | } |
|
|
621 | } |
|
|
622 | |
|
|
623 | void inline_speed |
|
|
624 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
625 | { |
|
|
626 | int i; |
|
|
627 | |
|
|
628 | for (i = 0; i < eventcnt; ++i) |
|
|
629 | ev_feed_event (EV_A_ events [i], type); |
|
|
630 | } |
|
|
631 | |
|
|
632 | /*****************************************************************************/ |
|
|
633 | |
|
|
634 | void inline_size |
327 | anfds_init (ANFD *base, int count) |
635 | anfds_init (ANFD *base, int count) |
328 | { |
636 | { |
329 | while (count--) |
637 | while (count--) |
330 | { |
638 | { |
331 | base->head = 0; |
639 | base->head = 0; |
… | |
… | |
334 | |
642 | |
335 | ++base; |
643 | ++base; |
336 | } |
644 | } |
337 | } |
645 | } |
338 | |
646 | |
339 | void |
647 | void inline_speed |
340 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
341 | { |
|
|
342 | W w_ = (W)w; |
|
|
343 | |
|
|
344 | if (w_->pending) |
|
|
345 | { |
|
|
346 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
347 | return; |
|
|
348 | } |
|
|
349 | |
|
|
350 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
351 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
|
352 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
353 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
354 | } |
|
|
355 | |
|
|
356 | static void |
|
|
357 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
358 | { |
|
|
359 | int i; |
|
|
360 | |
|
|
361 | for (i = 0; i < eventcnt; ++i) |
|
|
362 | ev_feed_event (EV_A_ events [i], type); |
|
|
363 | } |
|
|
364 | |
|
|
365 | inline void |
|
|
366 | fd_event (EV_P_ int fd, int revents) |
648 | fd_event (EV_P_ int fd, int revents) |
367 | { |
649 | { |
368 | ANFD *anfd = anfds + fd; |
650 | ANFD *anfd = anfds + fd; |
369 | struct ev_io *w; |
651 | ev_io *w; |
370 | |
652 | |
371 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
653 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
372 | { |
654 | { |
373 | int ev = w->events & revents; |
655 | int ev = w->events & revents; |
374 | |
656 | |
375 | if (ev) |
657 | if (ev) |
376 | ev_feed_event (EV_A_ (W)w, ev); |
658 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
378 | } |
660 | } |
379 | |
661 | |
380 | void |
662 | void |
381 | ev_feed_fd_event (EV_P_ int fd, int revents) |
663 | ev_feed_fd_event (EV_P_ int fd, int revents) |
382 | { |
664 | { |
|
|
665 | if (fd >= 0 && fd < anfdmax) |
383 | fd_event (EV_A_ fd, revents); |
666 | fd_event (EV_A_ fd, revents); |
384 | } |
667 | } |
385 | |
668 | |
386 | /*****************************************************************************/ |
669 | void inline_size |
387 | |
|
|
388 | static void |
|
|
389 | fd_reify (EV_P) |
670 | fd_reify (EV_P) |
390 | { |
671 | { |
391 | int i; |
672 | int i; |
392 | |
673 | |
393 | for (i = 0; i < fdchangecnt; ++i) |
674 | for (i = 0; i < fdchangecnt; ++i) |
394 | { |
675 | { |
395 | int fd = fdchanges [i]; |
676 | int fd = fdchanges [i]; |
396 | ANFD *anfd = anfds + fd; |
677 | ANFD *anfd = anfds + fd; |
397 | struct ev_io *w; |
678 | ev_io *w; |
398 | |
679 | |
399 | int events = 0; |
680 | unsigned char events = 0; |
400 | |
681 | |
401 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
682 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
402 | events |= w->events; |
683 | events |= (unsigned char)w->events; |
403 | |
684 | |
|
|
685 | #if EV_SELECT_IS_WINSOCKET |
|
|
686 | if (events) |
|
|
687 | { |
|
|
688 | unsigned long argp; |
|
|
689 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
690 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
691 | #else |
|
|
692 | anfd->handle = _get_osfhandle (fd); |
|
|
693 | #endif |
|
|
694 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
695 | } |
|
|
696 | #endif |
|
|
697 | |
|
|
698 | { |
|
|
699 | unsigned char o_events = anfd->events; |
|
|
700 | unsigned char o_reify = anfd->reify; |
|
|
701 | |
404 | anfd->reify = 0; |
702 | anfd->reify = 0; |
405 | |
|
|
406 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
407 | anfd->events = events; |
703 | anfd->events = events; |
|
|
704 | |
|
|
705 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
706 | backend_modify (EV_A_ fd, o_events, events); |
|
|
707 | } |
408 | } |
708 | } |
409 | |
709 | |
410 | fdchangecnt = 0; |
710 | fdchangecnt = 0; |
411 | } |
711 | } |
412 | |
712 | |
413 | static void |
713 | void inline_size |
414 | fd_change (EV_P_ int fd) |
714 | fd_change (EV_P_ int fd, int flags) |
415 | { |
715 | { |
416 | if (anfds [fd].reify) |
716 | unsigned char reify = anfds [fd].reify; |
417 | return; |
|
|
418 | |
|
|
419 | anfds [fd].reify = 1; |
717 | anfds [fd].reify |= flags; |
420 | |
718 | |
|
|
719 | if (expect_true (!reify)) |
|
|
720 | { |
421 | ++fdchangecnt; |
721 | ++fdchangecnt; |
422 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
722 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
423 | fdchanges [fdchangecnt - 1] = fd; |
723 | fdchanges [fdchangecnt - 1] = fd; |
|
|
724 | } |
424 | } |
725 | } |
425 | |
726 | |
426 | static void |
727 | void inline_speed |
427 | fd_kill (EV_P_ int fd) |
728 | fd_kill (EV_P_ int fd) |
428 | { |
729 | { |
429 | struct ev_io *w; |
730 | ev_io *w; |
430 | |
731 | |
431 | while ((w = (struct ev_io *)anfds [fd].head)) |
732 | while ((w = (ev_io *)anfds [fd].head)) |
432 | { |
733 | { |
433 | ev_io_stop (EV_A_ w); |
734 | ev_io_stop (EV_A_ w); |
434 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
735 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
435 | } |
736 | } |
436 | } |
737 | } |
437 | |
738 | |
438 | static int |
739 | int inline_size |
439 | fd_valid (int fd) |
740 | fd_valid (int fd) |
440 | { |
741 | { |
441 | #ifdef WIN32 |
742 | #ifdef _WIN32 |
442 | return !!win32_get_osfhandle (fd); |
743 | return _get_osfhandle (fd) != -1; |
443 | #else |
744 | #else |
444 | return fcntl (fd, F_GETFD) != -1; |
745 | return fcntl (fd, F_GETFD) != -1; |
445 | #endif |
746 | #endif |
446 | } |
747 | } |
447 | |
748 | |
448 | /* called on EBADF to verify fds */ |
749 | /* called on EBADF to verify fds */ |
449 | static void |
750 | static void noinline |
450 | fd_ebadf (EV_P) |
751 | fd_ebadf (EV_P) |
451 | { |
752 | { |
452 | int fd; |
753 | int fd; |
453 | |
754 | |
454 | for (fd = 0; fd < anfdmax; ++fd) |
755 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
456 | if (!fd_valid (fd) == -1 && errno == EBADF) |
757 | if (!fd_valid (fd) == -1 && errno == EBADF) |
457 | fd_kill (EV_A_ fd); |
758 | fd_kill (EV_A_ fd); |
458 | } |
759 | } |
459 | |
760 | |
460 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
761 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
461 | static void |
762 | static void noinline |
462 | fd_enomem (EV_P) |
763 | fd_enomem (EV_P) |
463 | { |
764 | { |
464 | int fd; |
765 | int fd; |
465 | |
766 | |
466 | for (fd = anfdmax; fd--; ) |
767 | for (fd = anfdmax; fd--; ) |
… | |
… | |
469 | fd_kill (EV_A_ fd); |
770 | fd_kill (EV_A_ fd); |
470 | return; |
771 | return; |
471 | } |
772 | } |
472 | } |
773 | } |
473 | |
774 | |
474 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
775 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
475 | static void |
776 | static void noinline |
476 | fd_rearm_all (EV_P) |
777 | fd_rearm_all (EV_P) |
477 | { |
778 | { |
478 | int fd; |
779 | int fd; |
479 | |
780 | |
480 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
481 | for (fd = 0; fd < anfdmax; ++fd) |
781 | for (fd = 0; fd < anfdmax; ++fd) |
482 | if (anfds [fd].events) |
782 | if (anfds [fd].events) |
483 | { |
783 | { |
484 | anfds [fd].events = 0; |
784 | anfds [fd].events = 0; |
485 | fd_change (EV_A_ fd); |
785 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
486 | } |
786 | } |
487 | } |
787 | } |
488 | |
788 | |
489 | /*****************************************************************************/ |
789 | /*****************************************************************************/ |
490 | |
790 | |
491 | static void |
791 | /* |
|
|
792 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
793 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
794 | * the branching factor of the d-tree. |
|
|
795 | */ |
|
|
796 | |
|
|
797 | /* |
|
|
798 | * at the moment we allow libev the luxury of two heaps, |
|
|
799 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
800 | * which is more cache-efficient. |
|
|
801 | * the difference is about 5% with 50000+ watchers. |
|
|
802 | */ |
|
|
803 | #if EV_USE_4HEAP |
|
|
804 | |
|
|
805 | #define DHEAP 4 |
|
|
806 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
807 | |
|
|
808 | /* towards the root */ |
|
|
809 | void inline_speed |
492 | upheap (WT *heap, int k) |
810 | upheap (ANHE *heap, int k) |
493 | { |
811 | { |
494 | WT w = heap [k]; |
812 | ANHE he = heap [k]; |
495 | |
813 | |
496 | while (k && heap [k >> 1]->at > w->at) |
814 | for (;;) |
497 | { |
|
|
498 | heap [k] = heap [k >> 1]; |
|
|
499 | ((W)heap [k])->active = k + 1; |
|
|
500 | k >>= 1; |
|
|
501 | } |
815 | { |
|
|
816 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
502 | |
817 | |
503 | heap [k] = w; |
818 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
504 | ((W)heap [k])->active = k + 1; |
|
|
505 | |
|
|
506 | } |
|
|
507 | |
|
|
508 | static void |
|
|
509 | downheap (WT *heap, int N, int k) |
|
|
510 | { |
|
|
511 | WT w = heap [k]; |
|
|
512 | |
|
|
513 | while (k < (N >> 1)) |
|
|
514 | { |
|
|
515 | int j = k << 1; |
|
|
516 | |
|
|
517 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
518 | ++j; |
|
|
519 | |
|
|
520 | if (w->at <= heap [j]->at) |
|
|
521 | break; |
819 | break; |
522 | |
820 | |
523 | heap [k] = heap [j]; |
821 | heap [k] = heap [p]; |
524 | ((W)heap [k])->active = k + 1; |
822 | ev_active (ANHE_w (heap [k])) = k; |
525 | k = j; |
823 | k = p; |
526 | } |
824 | } |
527 | |
825 | |
|
|
826 | ev_active (ANHE_w (he)) = k; |
528 | heap [k] = w; |
827 | heap [k] = he; |
529 | ((W)heap [k])->active = k + 1; |
|
|
530 | } |
828 | } |
531 | |
829 | |
532 | inline void |
830 | /* away from the root */ |
533 | adjustheap (WT *heap, int N, int k, ev_tstamp at) |
831 | void inline_speed |
|
|
832 | downheap (ANHE *heap, int N, int k) |
534 | { |
833 | { |
535 | ev_tstamp old_at = heap [k]->at; |
834 | ANHE he = heap [k]; |
|
|
835 | ANHE *E = heap + N + HEAP0; |
|
|
836 | |
|
|
837 | for (;;) |
|
|
838 | { |
|
|
839 | ev_tstamp minat; |
|
|
840 | ANHE *minpos; |
|
|
841 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
|
|
842 | |
|
|
843 | // find minimum child |
|
|
844 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
845 | { |
|
|
846 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
847 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
848 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
849 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
850 | } |
|
|
851 | else if (pos < E) |
|
|
852 | { |
|
|
853 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
854 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
855 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
856 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
857 | } |
|
|
858 | else |
|
|
859 | break; |
|
|
860 | |
|
|
861 | if (ANHE_at (he) <= minat) |
|
|
862 | break; |
|
|
863 | |
|
|
864 | ev_active (ANHE_w (*minpos)) = k; |
|
|
865 | heap [k] = *minpos; |
|
|
866 | |
|
|
867 | k = minpos - heap; |
|
|
868 | } |
|
|
869 | |
|
|
870 | ev_active (ANHE_w (he)) = k; |
536 | heap [k]->at = at; |
871 | heap [k] = he; |
|
|
872 | } |
537 | |
873 | |
538 | if (old_at < at) |
874 | #else // 4HEAP |
|
|
875 | |
|
|
876 | #define HEAP0 1 |
|
|
877 | |
|
|
878 | /* towards the root */ |
|
|
879 | void inline_speed |
|
|
880 | upheap (ANHE *heap, int k) |
|
|
881 | { |
|
|
882 | ANHE he = heap [k]; |
|
|
883 | |
|
|
884 | for (;;) |
|
|
885 | { |
|
|
886 | int p = k >> 1; |
|
|
887 | |
|
|
888 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
889 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
890 | break; |
|
|
891 | |
|
|
892 | heap [k] = heap [p]; |
|
|
893 | ev_active (ANHE_w (heap [k])) = k; |
|
|
894 | k = p; |
|
|
895 | } |
|
|
896 | |
|
|
897 | heap [k] = he; |
|
|
898 | ev_active (ANHE_w (heap [k])) = k; |
|
|
899 | } |
|
|
900 | |
|
|
901 | /* away from the root */ |
|
|
902 | void inline_speed |
|
|
903 | downheap (ANHE *heap, int N, int k) |
|
|
904 | { |
|
|
905 | ANHE he = heap [k]; |
|
|
906 | |
|
|
907 | for (;;) |
|
|
908 | { |
|
|
909 | int c = k << 1; |
|
|
910 | |
|
|
911 | if (c > N) |
|
|
912 | break; |
|
|
913 | |
|
|
914 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
915 | ? 1 : 0; |
|
|
916 | |
|
|
917 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
918 | break; |
|
|
919 | |
|
|
920 | heap [k] = heap [c]; |
|
|
921 | ev_active (ANHE_w (heap [k])) = k; |
|
|
922 | |
|
|
923 | k = c; |
|
|
924 | } |
|
|
925 | |
|
|
926 | heap [k] = he; |
|
|
927 | ev_active (ANHE_w (he)) = k; |
|
|
928 | } |
|
|
929 | #endif |
|
|
930 | |
|
|
931 | void inline_size |
|
|
932 | adjustheap (ANHE *heap, int N, int k) |
|
|
933 | { |
|
|
934 | upheap (heap, k); |
539 | downheap (heap, N, k); |
935 | downheap (heap, N, k); |
540 | else |
|
|
541 | upheap (heap, k); |
|
|
542 | } |
936 | } |
543 | |
937 | |
544 | /*****************************************************************************/ |
938 | /*****************************************************************************/ |
545 | |
939 | |
546 | typedef struct |
940 | typedef struct |
547 | { |
941 | { |
548 | WL head; |
942 | WL head; |
549 | sig_atomic_t volatile gotsig; |
943 | EV_ATOMIC_T gotsig; |
550 | } ANSIG; |
944 | } ANSIG; |
551 | |
945 | |
552 | static ANSIG *signals; |
946 | static ANSIG *signals; |
553 | static int signalmax; |
947 | static int signalmax; |
554 | |
948 | |
555 | static int sigpipe [2]; |
949 | static EV_ATOMIC_T gotsig; |
556 | static sig_atomic_t volatile gotsig; |
|
|
557 | static struct ev_io sigev; |
|
|
558 | |
950 | |
559 | static void |
951 | void inline_size |
560 | signals_init (ANSIG *base, int count) |
952 | signals_init (ANSIG *base, int count) |
561 | { |
953 | { |
562 | while (count--) |
954 | while (count--) |
563 | { |
955 | { |
564 | base->head = 0; |
956 | base->head = 0; |
… | |
… | |
566 | |
958 | |
567 | ++base; |
959 | ++base; |
568 | } |
960 | } |
569 | } |
961 | } |
570 | |
962 | |
|
|
963 | /*****************************************************************************/ |
|
|
964 | |
|
|
965 | void inline_speed |
|
|
966 | fd_intern (int fd) |
|
|
967 | { |
|
|
968 | #ifdef _WIN32 |
|
|
969 | int arg = 1; |
|
|
970 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
971 | #else |
|
|
972 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
973 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
974 | #endif |
|
|
975 | } |
|
|
976 | |
|
|
977 | static void noinline |
|
|
978 | evpipe_init (EV_P) |
|
|
979 | { |
|
|
980 | if (!ev_is_active (&pipeev)) |
|
|
981 | { |
|
|
982 | #if EV_USE_EVENTFD |
|
|
983 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
984 | { |
|
|
985 | evpipe [0] = -1; |
|
|
986 | fd_intern (evfd); |
|
|
987 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
988 | } |
|
|
989 | else |
|
|
990 | #endif |
|
|
991 | { |
|
|
992 | while (pipe (evpipe)) |
|
|
993 | syserr ("(libev) error creating signal/async pipe"); |
|
|
994 | |
|
|
995 | fd_intern (evpipe [0]); |
|
|
996 | fd_intern (evpipe [1]); |
|
|
997 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
998 | } |
|
|
999 | |
|
|
1000 | ev_io_start (EV_A_ &pipeev); |
|
|
1001 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1002 | } |
|
|
1003 | } |
|
|
1004 | |
|
|
1005 | void inline_size |
|
|
1006 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1007 | { |
|
|
1008 | if (!*flag) |
|
|
1009 | { |
|
|
1010 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1011 | |
|
|
1012 | *flag = 1; |
|
|
1013 | |
|
|
1014 | #if EV_USE_EVENTFD |
|
|
1015 | if (evfd >= 0) |
|
|
1016 | { |
|
|
1017 | uint64_t counter = 1; |
|
|
1018 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1019 | } |
|
|
1020 | else |
|
|
1021 | #endif |
|
|
1022 | write (evpipe [1], &old_errno, 1); |
|
|
1023 | |
|
|
1024 | errno = old_errno; |
|
|
1025 | } |
|
|
1026 | } |
|
|
1027 | |
571 | static void |
1028 | static void |
|
|
1029 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1030 | { |
|
|
1031 | #if EV_USE_EVENTFD |
|
|
1032 | if (evfd >= 0) |
|
|
1033 | { |
|
|
1034 | uint64_t counter; |
|
|
1035 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1036 | } |
|
|
1037 | else |
|
|
1038 | #endif |
|
|
1039 | { |
|
|
1040 | char dummy; |
|
|
1041 | read (evpipe [0], &dummy, 1); |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1045 | { |
|
|
1046 | int signum; |
|
|
1047 | gotsig = 0; |
|
|
1048 | |
|
|
1049 | for (signum = signalmax; signum--; ) |
|
|
1050 | if (signals [signum].gotsig) |
|
|
1051 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | #if EV_ASYNC_ENABLE |
|
|
1055 | if (gotasync) |
|
|
1056 | { |
|
|
1057 | int i; |
|
|
1058 | gotasync = 0; |
|
|
1059 | |
|
|
1060 | for (i = asynccnt; i--; ) |
|
|
1061 | if (asyncs [i]->sent) |
|
|
1062 | { |
|
|
1063 | asyncs [i]->sent = 0; |
|
|
1064 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1065 | } |
|
|
1066 | } |
|
|
1067 | #endif |
|
|
1068 | } |
|
|
1069 | |
|
|
1070 | /*****************************************************************************/ |
|
|
1071 | |
|
|
1072 | static void |
572 | sighandler (int signum) |
1073 | ev_sighandler (int signum) |
573 | { |
1074 | { |
|
|
1075 | #if EV_MULTIPLICITY |
|
|
1076 | struct ev_loop *loop = &default_loop_struct; |
|
|
1077 | #endif |
|
|
1078 | |
574 | #if WIN32 |
1079 | #if _WIN32 |
575 | signal (signum, sighandler); |
1080 | signal (signum, ev_sighandler); |
576 | #endif |
1081 | #endif |
577 | |
1082 | |
578 | signals [signum - 1].gotsig = 1; |
1083 | signals [signum - 1].gotsig = 1; |
579 | |
1084 | evpipe_write (EV_A_ &gotsig); |
580 | if (!gotsig) |
|
|
581 | { |
|
|
582 | int old_errno = errno; |
|
|
583 | gotsig = 1; |
|
|
584 | #ifdef WIN32 |
|
|
585 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
586 | #else |
|
|
587 | write (sigpipe [1], &signum, 1); |
|
|
588 | #endif |
|
|
589 | errno = old_errno; |
|
|
590 | } |
|
|
591 | } |
1085 | } |
592 | |
1086 | |
593 | void |
1087 | void noinline |
594 | ev_feed_signal_event (EV_P_ int signum) |
1088 | ev_feed_signal_event (EV_P_ int signum) |
595 | { |
1089 | { |
596 | WL w; |
1090 | WL w; |
597 | |
1091 | |
598 | #if EV_MULTIPLICITY |
1092 | #if EV_MULTIPLICITY |
599 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
1093 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
600 | #endif |
1094 | #endif |
601 | |
1095 | |
602 | --signum; |
1096 | --signum; |
603 | |
1097 | |
604 | if (signum < 0 || signum >= signalmax) |
1098 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
608 | |
1102 | |
609 | for (w = signals [signum].head; w; w = w->next) |
1103 | for (w = signals [signum].head; w; w = w->next) |
610 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1104 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
611 | } |
1105 | } |
612 | |
1106 | |
613 | static void |
|
|
614 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
615 | { |
|
|
616 | int signum; |
|
|
617 | |
|
|
618 | #ifdef WIN32 |
|
|
619 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
620 | #else |
|
|
621 | read (sigpipe [0], &revents, 1); |
|
|
622 | #endif |
|
|
623 | gotsig = 0; |
|
|
624 | |
|
|
625 | for (signum = signalmax; signum--; ) |
|
|
626 | if (signals [signum].gotsig) |
|
|
627 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
628 | } |
|
|
629 | |
|
|
630 | static void |
|
|
631 | siginit (EV_P) |
|
|
632 | { |
|
|
633 | #ifndef WIN32 |
|
|
634 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
635 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
636 | |
|
|
637 | /* rather than sort out wether we really need nb, set it */ |
|
|
638 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
639 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
640 | #endif |
|
|
641 | |
|
|
642 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
643 | ev_io_start (EV_A_ &sigev); |
|
|
644 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
645 | } |
|
|
646 | |
|
|
647 | /*****************************************************************************/ |
1107 | /*****************************************************************************/ |
648 | |
1108 | |
649 | static struct ev_child *childs [PID_HASHSIZE]; |
1109 | static WL childs [EV_PID_HASHSIZE]; |
650 | |
1110 | |
651 | #ifndef WIN32 |
1111 | #ifndef _WIN32 |
652 | |
1112 | |
653 | static struct ev_signal childev; |
1113 | static ev_signal childev; |
|
|
1114 | |
|
|
1115 | #ifndef WIFCONTINUED |
|
|
1116 | # define WIFCONTINUED(status) 0 |
|
|
1117 | #endif |
|
|
1118 | |
|
|
1119 | void inline_speed |
|
|
1120 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1121 | { |
|
|
1122 | ev_child *w; |
|
|
1123 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1124 | |
|
|
1125 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1126 | { |
|
|
1127 | if ((w->pid == pid || !w->pid) |
|
|
1128 | && (!traced || (w->flags & 1))) |
|
|
1129 | { |
|
|
1130 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1131 | w->rpid = pid; |
|
|
1132 | w->rstatus = status; |
|
|
1133 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1134 | } |
|
|
1135 | } |
|
|
1136 | } |
654 | |
1137 | |
655 | #ifndef WCONTINUED |
1138 | #ifndef WCONTINUED |
656 | # define WCONTINUED 0 |
1139 | # define WCONTINUED 0 |
657 | #endif |
1140 | #endif |
658 | |
1141 | |
659 | static void |
1142 | static void |
660 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
661 | { |
|
|
662 | struct ev_child *w; |
|
|
663 | |
|
|
664 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
665 | if (w->pid == pid || !w->pid) |
|
|
666 | { |
|
|
667 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
668 | w->rpid = pid; |
|
|
669 | w->rstatus = status; |
|
|
670 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
671 | } |
|
|
672 | } |
|
|
673 | |
|
|
674 | static void |
|
|
675 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1143 | childcb (EV_P_ ev_signal *sw, int revents) |
676 | { |
1144 | { |
677 | int pid, status; |
1145 | int pid, status; |
678 | |
1146 | |
|
|
1147 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
679 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1148 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
680 | { |
1149 | if (!WCONTINUED |
|
|
1150 | || errno != EINVAL |
|
|
1151 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1152 | return; |
|
|
1153 | |
681 | /* make sure we are called again until all childs have been reaped */ |
1154 | /* make sure we are called again until all children have been reaped */ |
|
|
1155 | /* we need to do it this way so that the callback gets called before we continue */ |
682 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1156 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
683 | |
1157 | |
684 | child_reap (EV_A_ sw, pid, pid, status); |
1158 | child_reap (EV_A_ pid, pid, status); |
|
|
1159 | if (EV_PID_HASHSIZE > 1) |
685 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1160 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
686 | } |
|
|
687 | } |
1161 | } |
688 | |
1162 | |
689 | #endif |
1163 | #endif |
690 | |
1164 | |
691 | /*****************************************************************************/ |
1165 | /*****************************************************************************/ |
692 | |
1166 | |
|
|
1167 | #if EV_USE_PORT |
|
|
1168 | # include "ev_port.c" |
|
|
1169 | #endif |
693 | #if EV_USE_KQUEUE |
1170 | #if EV_USE_KQUEUE |
694 | # include "ev_kqueue.c" |
1171 | # include "ev_kqueue.c" |
695 | #endif |
1172 | #endif |
696 | #if EV_USE_EPOLL |
1173 | #if EV_USE_EPOLL |
697 | # include "ev_epoll.c" |
1174 | # include "ev_epoll.c" |
… | |
… | |
714 | { |
1191 | { |
715 | return EV_VERSION_MINOR; |
1192 | return EV_VERSION_MINOR; |
716 | } |
1193 | } |
717 | |
1194 | |
718 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1195 | /* return true if we are running with elevated privileges and should ignore env variables */ |
719 | static int |
1196 | int inline_size |
720 | enable_secure (void) |
1197 | enable_secure (void) |
721 | { |
1198 | { |
722 | #ifdef WIN32 |
1199 | #ifdef _WIN32 |
723 | return 0; |
1200 | return 0; |
724 | #else |
1201 | #else |
725 | return getuid () != geteuid () |
1202 | return getuid () != geteuid () |
726 | || getgid () != getegid (); |
1203 | || getgid () != getegid (); |
727 | #endif |
1204 | #endif |
728 | } |
1205 | } |
729 | |
1206 | |
730 | int |
1207 | unsigned int |
731 | ev_method (EV_P) |
1208 | ev_supported_backends (void) |
732 | { |
1209 | { |
733 | return method; |
1210 | unsigned int flags = 0; |
734 | } |
|
|
735 | |
1211 | |
736 | static void |
1212 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
737 | loop_init (EV_P_ int methods) |
1213 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1214 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1215 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1216 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1217 | |
|
|
1218 | return flags; |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | unsigned int |
|
|
1222 | ev_recommended_backends (void) |
738 | { |
1223 | { |
739 | if (!method) |
1224 | unsigned int flags = ev_supported_backends (); |
|
|
1225 | |
|
|
1226 | #ifndef __NetBSD__ |
|
|
1227 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1228 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1229 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1230 | #endif |
|
|
1231 | #ifdef __APPLE__ |
|
|
1232 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1233 | flags &= ~EVBACKEND_POLL; |
|
|
1234 | #endif |
|
|
1235 | |
|
|
1236 | return flags; |
|
|
1237 | } |
|
|
1238 | |
|
|
1239 | unsigned int |
|
|
1240 | ev_embeddable_backends (void) |
|
|
1241 | { |
|
|
1242 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1243 | |
|
|
1244 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1245 | /* please fix it and tell me how to detect the fix */ |
|
|
1246 | flags &= ~EVBACKEND_EPOLL; |
|
|
1247 | |
|
|
1248 | return flags; |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | unsigned int |
|
|
1252 | ev_backend (EV_P) |
|
|
1253 | { |
|
|
1254 | return backend; |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | unsigned int |
|
|
1258 | ev_loop_count (EV_P) |
|
|
1259 | { |
|
|
1260 | return loop_count; |
|
|
1261 | } |
|
|
1262 | |
|
|
1263 | void |
|
|
1264 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1265 | { |
|
|
1266 | io_blocktime = interval; |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | void |
|
|
1270 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1271 | { |
|
|
1272 | timeout_blocktime = interval; |
|
|
1273 | } |
|
|
1274 | |
|
|
1275 | static void noinline |
|
|
1276 | loop_init (EV_P_ unsigned int flags) |
|
|
1277 | { |
|
|
1278 | if (!backend) |
740 | { |
1279 | { |
741 | #if EV_USE_MONOTONIC |
1280 | #if EV_USE_MONOTONIC |
742 | { |
1281 | { |
743 | struct timespec ts; |
1282 | struct timespec ts; |
744 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1283 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
745 | have_monotonic = 1; |
1284 | have_monotonic = 1; |
746 | } |
1285 | } |
747 | #endif |
1286 | #endif |
748 | |
1287 | |
749 | ev_rt_now = ev_time (); |
1288 | ev_rt_now = ev_time (); |
750 | mn_now = get_clock (); |
1289 | mn_now = get_clock (); |
751 | now_floor = mn_now; |
1290 | now_floor = mn_now; |
752 | rtmn_diff = ev_rt_now - mn_now; |
1291 | rtmn_diff = ev_rt_now - mn_now; |
753 | |
1292 | |
754 | if (methods == EVMETHOD_AUTO) |
1293 | io_blocktime = 0.; |
755 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1294 | timeout_blocktime = 0.; |
|
|
1295 | backend = 0; |
|
|
1296 | backend_fd = -1; |
|
|
1297 | gotasync = 0; |
|
|
1298 | #if EV_USE_INOTIFY |
|
|
1299 | fs_fd = -2; |
|
|
1300 | #endif |
|
|
1301 | |
|
|
1302 | /* pid check not overridable via env */ |
|
|
1303 | #ifndef _WIN32 |
|
|
1304 | if (flags & EVFLAG_FORKCHECK) |
|
|
1305 | curpid = getpid (); |
|
|
1306 | #endif |
|
|
1307 | |
|
|
1308 | if (!(flags & EVFLAG_NOENV) |
|
|
1309 | && !enable_secure () |
|
|
1310 | && getenv ("LIBEV_FLAGS")) |
756 | methods = atoi (getenv ("LIBEV_METHODS")); |
1311 | flags = atoi (getenv ("LIBEV_FLAGS")); |
757 | else |
|
|
758 | methods = EVMETHOD_ANY; |
|
|
759 | |
1312 | |
760 | method = 0; |
1313 | if (!(flags & 0x0000ffffU)) |
761 | #if EV_USE_WIN32 |
1314 | flags |= ev_recommended_backends (); |
762 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1315 | |
|
|
1316 | #if EV_USE_PORT |
|
|
1317 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
763 | #endif |
1318 | #endif |
764 | #if EV_USE_KQUEUE |
1319 | #if EV_USE_KQUEUE |
765 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1320 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
766 | #endif |
1321 | #endif |
767 | #if EV_USE_EPOLL |
1322 | #if EV_USE_EPOLL |
768 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1323 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
769 | #endif |
1324 | #endif |
770 | #if EV_USE_POLL |
1325 | #if EV_USE_POLL |
771 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1326 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
772 | #endif |
1327 | #endif |
773 | #if EV_USE_SELECT |
1328 | #if EV_USE_SELECT |
774 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1329 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
775 | #endif |
1330 | #endif |
776 | |
1331 | |
777 | ev_init (&sigev, sigcb); |
1332 | ev_init (&pipeev, pipecb); |
778 | ev_set_priority (&sigev, EV_MAXPRI); |
1333 | ev_set_priority (&pipeev, EV_MAXPRI); |
779 | } |
1334 | } |
780 | } |
1335 | } |
781 | |
1336 | |
782 | void |
1337 | static void noinline |
783 | loop_destroy (EV_P) |
1338 | loop_destroy (EV_P) |
784 | { |
1339 | { |
785 | int i; |
1340 | int i; |
786 | |
1341 | |
|
|
1342 | if (ev_is_active (&pipeev)) |
|
|
1343 | { |
|
|
1344 | ev_ref (EV_A); /* signal watcher */ |
|
|
1345 | ev_io_stop (EV_A_ &pipeev); |
|
|
1346 | |
|
|
1347 | #if EV_USE_EVENTFD |
|
|
1348 | if (evfd >= 0) |
|
|
1349 | close (evfd); |
|
|
1350 | #endif |
|
|
1351 | |
|
|
1352 | if (evpipe [0] >= 0) |
|
|
1353 | { |
|
|
1354 | close (evpipe [0]); |
|
|
1355 | close (evpipe [1]); |
|
|
1356 | } |
|
|
1357 | } |
|
|
1358 | |
787 | #if EV_USE_WIN32 |
1359 | #if EV_USE_INOTIFY |
788 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1360 | if (fs_fd >= 0) |
|
|
1361 | close (fs_fd); |
|
|
1362 | #endif |
|
|
1363 | |
|
|
1364 | if (backend_fd >= 0) |
|
|
1365 | close (backend_fd); |
|
|
1366 | |
|
|
1367 | #if EV_USE_PORT |
|
|
1368 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
789 | #endif |
1369 | #endif |
790 | #if EV_USE_KQUEUE |
1370 | #if EV_USE_KQUEUE |
791 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1371 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
792 | #endif |
1372 | #endif |
793 | #if EV_USE_EPOLL |
1373 | #if EV_USE_EPOLL |
794 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1374 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
795 | #endif |
1375 | #endif |
796 | #if EV_USE_POLL |
1376 | #if EV_USE_POLL |
797 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1377 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
798 | #endif |
1378 | #endif |
799 | #if EV_USE_SELECT |
1379 | #if EV_USE_SELECT |
800 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1380 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
801 | #endif |
1381 | #endif |
802 | |
1382 | |
803 | for (i = NUMPRI; i--; ) |
1383 | for (i = NUMPRI; i--; ) |
|
|
1384 | { |
804 | array_free (pending, [i]); |
1385 | array_free (pending, [i]); |
|
|
1386 | #if EV_IDLE_ENABLE |
|
|
1387 | array_free (idle, [i]); |
|
|
1388 | #endif |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | ev_free (anfds); anfdmax = 0; |
805 | |
1392 | |
806 | /* have to use the microsoft-never-gets-it-right macro */ |
1393 | /* have to use the microsoft-never-gets-it-right macro */ |
807 | array_free_microshit (fdchange); |
1394 | array_free (fdchange, EMPTY); |
808 | array_free_microshit (timer); |
1395 | array_free (timer, EMPTY); |
809 | array_free_microshit (periodic); |
1396 | #if EV_PERIODIC_ENABLE |
810 | array_free_microshit (idle); |
1397 | array_free (periodic, EMPTY); |
811 | array_free_microshit (prepare); |
1398 | #endif |
812 | array_free_microshit (check); |
1399 | #if EV_FORK_ENABLE |
|
|
1400 | array_free (fork, EMPTY); |
|
|
1401 | #endif |
|
|
1402 | array_free (prepare, EMPTY); |
|
|
1403 | array_free (check, EMPTY); |
|
|
1404 | #if EV_ASYNC_ENABLE |
|
|
1405 | array_free (async, EMPTY); |
|
|
1406 | #endif |
813 | |
1407 | |
814 | method = 0; |
1408 | backend = 0; |
815 | } |
1409 | } |
816 | |
1410 | |
817 | static void |
1411 | #if EV_USE_INOTIFY |
|
|
1412 | void inline_size infy_fork (EV_P); |
|
|
1413 | #endif |
|
|
1414 | |
|
|
1415 | void inline_size |
818 | loop_fork (EV_P) |
1416 | loop_fork (EV_P) |
819 | { |
1417 | { |
|
|
1418 | #if EV_USE_PORT |
|
|
1419 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1420 | #endif |
|
|
1421 | #if EV_USE_KQUEUE |
|
|
1422 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1423 | #endif |
820 | #if EV_USE_EPOLL |
1424 | #if EV_USE_EPOLL |
821 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1425 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
822 | #endif |
1426 | #endif |
823 | #if EV_USE_KQUEUE |
1427 | #if EV_USE_INOTIFY |
824 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1428 | infy_fork (EV_A); |
825 | #endif |
1429 | #endif |
826 | |
1430 | |
827 | if (ev_is_active (&sigev)) |
1431 | if (ev_is_active (&pipeev)) |
828 | { |
1432 | { |
829 | /* default loop */ |
1433 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1434 | /* while we modify the fd vars */ |
|
|
1435 | gotsig = 1; |
|
|
1436 | #if EV_ASYNC_ENABLE |
|
|
1437 | gotasync = 1; |
|
|
1438 | #endif |
830 | |
1439 | |
831 | ev_ref (EV_A); |
1440 | ev_ref (EV_A); |
832 | ev_io_stop (EV_A_ &sigev); |
1441 | ev_io_stop (EV_A_ &pipeev); |
|
|
1442 | |
|
|
1443 | #if EV_USE_EVENTFD |
|
|
1444 | if (evfd >= 0) |
|
|
1445 | close (evfd); |
|
|
1446 | #endif |
|
|
1447 | |
|
|
1448 | if (evpipe [0] >= 0) |
|
|
1449 | { |
833 | close (sigpipe [0]); |
1450 | close (evpipe [0]); |
834 | close (sigpipe [1]); |
1451 | close (evpipe [1]); |
|
|
1452 | } |
835 | |
1453 | |
836 | while (pipe (sigpipe)) |
|
|
837 | syserr ("(libev) error creating pipe"); |
|
|
838 | |
|
|
839 | siginit (EV_A); |
1454 | evpipe_init (EV_A); |
|
|
1455 | /* now iterate over everything, in case we missed something */ |
|
|
1456 | pipecb (EV_A_ &pipeev, EV_READ); |
840 | } |
1457 | } |
841 | |
1458 | |
842 | postfork = 0; |
1459 | postfork = 0; |
843 | } |
1460 | } |
844 | |
1461 | |
845 | #if EV_MULTIPLICITY |
1462 | #if EV_MULTIPLICITY |
846 | struct ev_loop * |
1463 | struct ev_loop * |
847 | ev_loop_new (int methods) |
1464 | ev_loop_new (unsigned int flags) |
848 | { |
1465 | { |
849 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1466 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
850 | |
1467 | |
851 | memset (loop, 0, sizeof (struct ev_loop)); |
1468 | memset (loop, 0, sizeof (struct ev_loop)); |
852 | |
1469 | |
853 | loop_init (EV_A_ methods); |
1470 | loop_init (EV_A_ flags); |
854 | |
1471 | |
855 | if (ev_method (EV_A)) |
1472 | if (ev_backend (EV_A)) |
856 | return loop; |
1473 | return loop; |
857 | |
1474 | |
858 | return 0; |
1475 | return 0; |
859 | } |
1476 | } |
860 | |
1477 | |
… | |
… | |
866 | } |
1483 | } |
867 | |
1484 | |
868 | void |
1485 | void |
869 | ev_loop_fork (EV_P) |
1486 | ev_loop_fork (EV_P) |
870 | { |
1487 | { |
871 | postfork = 1; |
1488 | postfork = 1; /* must be in line with ev_default_fork */ |
872 | } |
1489 | } |
873 | |
|
|
874 | #endif |
1490 | #endif |
875 | |
1491 | |
876 | #if EV_MULTIPLICITY |
1492 | #if EV_MULTIPLICITY |
877 | struct ev_loop * |
1493 | struct ev_loop * |
|
|
1494 | ev_default_loop_init (unsigned int flags) |
878 | #else |
1495 | #else |
879 | int |
1496 | int |
|
|
1497 | ev_default_loop (unsigned int flags) |
880 | #endif |
1498 | #endif |
881 | ev_default_loop (int methods) |
|
|
882 | { |
1499 | { |
883 | if (sigpipe [0] == sigpipe [1]) |
|
|
884 | if (pipe (sigpipe)) |
|
|
885 | return 0; |
|
|
886 | |
|
|
887 | if (!default_loop) |
1500 | if (!ev_default_loop_ptr) |
888 | { |
1501 | { |
889 | #if EV_MULTIPLICITY |
1502 | #if EV_MULTIPLICITY |
890 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1503 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
891 | #else |
1504 | #else |
892 | default_loop = 1; |
1505 | ev_default_loop_ptr = 1; |
893 | #endif |
1506 | #endif |
894 | |
1507 | |
895 | loop_init (EV_A_ methods); |
1508 | loop_init (EV_A_ flags); |
896 | |
1509 | |
897 | if (ev_method (EV_A)) |
1510 | if (ev_backend (EV_A)) |
898 | { |
1511 | { |
899 | siginit (EV_A); |
|
|
900 | |
|
|
901 | #ifndef WIN32 |
1512 | #ifndef _WIN32 |
902 | ev_signal_init (&childev, childcb, SIGCHLD); |
1513 | ev_signal_init (&childev, childcb, SIGCHLD); |
903 | ev_set_priority (&childev, EV_MAXPRI); |
1514 | ev_set_priority (&childev, EV_MAXPRI); |
904 | ev_signal_start (EV_A_ &childev); |
1515 | ev_signal_start (EV_A_ &childev); |
905 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1516 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
906 | #endif |
1517 | #endif |
907 | } |
1518 | } |
908 | else |
1519 | else |
909 | default_loop = 0; |
1520 | ev_default_loop_ptr = 0; |
910 | } |
1521 | } |
911 | |
1522 | |
912 | return default_loop; |
1523 | return ev_default_loop_ptr; |
913 | } |
1524 | } |
914 | |
1525 | |
915 | void |
1526 | void |
916 | ev_default_destroy (void) |
1527 | ev_default_destroy (void) |
917 | { |
1528 | { |
918 | #if EV_MULTIPLICITY |
1529 | #if EV_MULTIPLICITY |
919 | struct ev_loop *loop = default_loop; |
1530 | struct ev_loop *loop = ev_default_loop_ptr; |
920 | #endif |
1531 | #endif |
921 | |
1532 | |
922 | #ifndef WIN32 |
1533 | #ifndef _WIN32 |
923 | ev_ref (EV_A); /* child watcher */ |
1534 | ev_ref (EV_A); /* child watcher */ |
924 | ev_signal_stop (EV_A_ &childev); |
1535 | ev_signal_stop (EV_A_ &childev); |
925 | #endif |
1536 | #endif |
926 | |
1537 | |
927 | ev_ref (EV_A); /* signal watcher */ |
|
|
928 | ev_io_stop (EV_A_ &sigev); |
|
|
929 | |
|
|
930 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
931 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
932 | |
|
|
933 | loop_destroy (EV_A); |
1538 | loop_destroy (EV_A); |
934 | } |
1539 | } |
935 | |
1540 | |
936 | void |
1541 | void |
937 | ev_default_fork (void) |
1542 | ev_default_fork (void) |
938 | { |
1543 | { |
939 | #if EV_MULTIPLICITY |
1544 | #if EV_MULTIPLICITY |
940 | struct ev_loop *loop = default_loop; |
1545 | struct ev_loop *loop = ev_default_loop_ptr; |
941 | #endif |
1546 | #endif |
942 | |
1547 | |
943 | if (method) |
1548 | if (backend) |
944 | postfork = 1; |
1549 | postfork = 1; /* must be in line with ev_loop_fork */ |
945 | } |
1550 | } |
946 | |
1551 | |
947 | /*****************************************************************************/ |
1552 | /*****************************************************************************/ |
948 | |
1553 | |
949 | static int |
1554 | void |
950 | any_pending (EV_P) |
1555 | ev_invoke (EV_P_ void *w, int revents) |
951 | { |
1556 | { |
952 | int pri; |
1557 | EV_CB_INVOKE ((W)w, revents); |
953 | |
|
|
954 | for (pri = NUMPRI; pri--; ) |
|
|
955 | if (pendingcnt [pri]) |
|
|
956 | return 1; |
|
|
957 | |
|
|
958 | return 0; |
|
|
959 | } |
1558 | } |
960 | |
1559 | |
961 | static void |
1560 | void inline_speed |
962 | call_pending (EV_P) |
1561 | call_pending (EV_P) |
963 | { |
1562 | { |
964 | int pri; |
1563 | int pri; |
965 | |
1564 | |
966 | for (pri = NUMPRI; pri--; ) |
1565 | for (pri = NUMPRI; pri--; ) |
967 | while (pendingcnt [pri]) |
1566 | while (pendingcnt [pri]) |
968 | { |
1567 | { |
969 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1568 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
970 | |
1569 | |
971 | if (p->w) |
1570 | if (expect_true (p->w)) |
972 | { |
1571 | { |
|
|
1572 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1573 | |
973 | p->w->pending = 0; |
1574 | p->w->pending = 0; |
974 | EV_CB_INVOKE (p->w, p->events); |
1575 | EV_CB_INVOKE (p->w, p->events); |
975 | } |
1576 | } |
976 | } |
1577 | } |
977 | } |
1578 | } |
978 | |
1579 | |
979 | static void |
1580 | #if EV_IDLE_ENABLE |
|
|
1581 | void inline_size |
|
|
1582 | idle_reify (EV_P) |
|
|
1583 | { |
|
|
1584 | if (expect_false (idleall)) |
|
|
1585 | { |
|
|
1586 | int pri; |
|
|
1587 | |
|
|
1588 | for (pri = NUMPRI; pri--; ) |
|
|
1589 | { |
|
|
1590 | if (pendingcnt [pri]) |
|
|
1591 | break; |
|
|
1592 | |
|
|
1593 | if (idlecnt [pri]) |
|
|
1594 | { |
|
|
1595 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1596 | break; |
|
|
1597 | } |
|
|
1598 | } |
|
|
1599 | } |
|
|
1600 | } |
|
|
1601 | #endif |
|
|
1602 | |
|
|
1603 | void inline_size |
980 | timers_reify (EV_P) |
1604 | timers_reify (EV_P) |
981 | { |
1605 | { |
982 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1606 | while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now) |
983 | { |
1607 | { |
984 | struct ev_timer *w = timers [0]; |
1608 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
985 | |
1609 | |
986 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1610 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
987 | |
1611 | |
988 | /* first reschedule or stop timer */ |
1612 | /* first reschedule or stop timer */ |
989 | if (w->repeat) |
1613 | if (w->repeat) |
990 | { |
1614 | { |
|
|
1615 | ev_at (w) += w->repeat; |
|
|
1616 | if (ev_at (w) < mn_now) |
|
|
1617 | ev_at (w) = mn_now; |
|
|
1618 | |
991 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1619 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
992 | ((WT)w)->at = mn_now + w->repeat; |
1620 | |
|
|
1621 | ANHE_at_set (timers [HEAP0]); |
993 | downheap ((WT *)timers, timercnt, 0); |
1622 | downheap (timers, timercnt, HEAP0); |
994 | } |
1623 | } |
995 | else |
1624 | else |
996 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1625 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
997 | |
1626 | |
998 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1627 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
999 | } |
1628 | } |
1000 | } |
1629 | } |
1001 | |
1630 | |
1002 | static void |
1631 | #if EV_PERIODIC_ENABLE |
|
|
1632 | void inline_size |
1003 | periodics_reify (EV_P) |
1633 | periodics_reify (EV_P) |
1004 | { |
1634 | { |
1005 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1635 | while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now) |
1006 | { |
1636 | { |
1007 | struct ev_periodic *w = periodics [0]; |
1637 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1008 | |
1638 | |
1009 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1639 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1010 | |
1640 | |
1011 | /* first reschedule or stop timer */ |
1641 | /* first reschedule or stop timer */ |
1012 | if (w->reschedule_cb) |
1642 | if (w->reschedule_cb) |
1013 | { |
1643 | { |
1014 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1644 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1015 | |
1645 | |
1016 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1646 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1647 | |
|
|
1648 | ANHE_at_set (periodics [HEAP0]); |
1017 | downheap ((WT *)periodics, periodiccnt, 0); |
1649 | downheap (periodics, periodiccnt, HEAP0); |
1018 | } |
1650 | } |
1019 | else if (w->interval) |
1651 | else if (w->interval) |
1020 | { |
1652 | { |
1021 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1653 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1654 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1655 | |
1022 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1656 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1657 | |
|
|
1658 | ANHE_at_set (periodics [HEAP0]); |
1023 | downheap ((WT *)periodics, periodiccnt, 0); |
1659 | downheap (periodics, periodiccnt, HEAP0); |
1024 | } |
1660 | } |
1025 | else |
1661 | else |
1026 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1662 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1027 | |
1663 | |
1028 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1664 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1029 | } |
1665 | } |
1030 | } |
1666 | } |
1031 | |
1667 | |
1032 | static void |
1668 | static void noinline |
1033 | periodics_reschedule (EV_P) |
1669 | periodics_reschedule (EV_P) |
1034 | { |
1670 | { |
1035 | int i; |
1671 | int i; |
1036 | |
1672 | |
1037 | /* adjust periodics after time jump */ |
1673 | /* adjust periodics after time jump */ |
|
|
1674 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
1675 | { |
|
|
1676 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
1677 | |
|
|
1678 | if (w->reschedule_cb) |
|
|
1679 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1680 | else if (w->interval) |
|
|
1681 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1682 | |
|
|
1683 | ANHE_at_set (periodics [i]); |
|
|
1684 | } |
|
|
1685 | |
|
|
1686 | /* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */ |
|
|
1687 | /* also, this is easy and corretc for both 2-heaps and 4-heaps */ |
1038 | for (i = 0; i < periodiccnt; ++i) |
1688 | for (i = 0; i < periodiccnt; ++i) |
1039 | { |
1689 | upheap (periodics, i + HEAP0); |
1040 | struct ev_periodic *w = periodics [i]; |
1690 | } |
|
|
1691 | #endif |
1041 | |
1692 | |
1042 | if (w->reschedule_cb) |
1693 | void inline_speed |
1043 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1694 | time_update (EV_P_ ev_tstamp max_block) |
1044 | else if (w->interval) |
1695 | { |
1045 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1696 | int i; |
|
|
1697 | |
|
|
1698 | #if EV_USE_MONOTONIC |
|
|
1699 | if (expect_true (have_monotonic)) |
1046 | } |
1700 | { |
|
|
1701 | ev_tstamp odiff = rtmn_diff; |
1047 | |
1702 | |
1048 | /* now rebuild the heap */ |
|
|
1049 | for (i = periodiccnt >> 1; i--; ) |
|
|
1050 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | inline int |
|
|
1054 | time_update_monotonic (EV_P) |
|
|
1055 | { |
|
|
1056 | mn_now = get_clock (); |
1703 | mn_now = get_clock (); |
1057 | |
1704 | |
|
|
1705 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1706 | /* interpolate in the meantime */ |
1058 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1707 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1059 | { |
1708 | { |
1060 | ev_rt_now = rtmn_diff + mn_now; |
1709 | ev_rt_now = rtmn_diff + mn_now; |
1061 | return 0; |
1710 | return; |
1062 | } |
1711 | } |
1063 | else |
1712 | |
1064 | { |
|
|
1065 | now_floor = mn_now; |
1713 | now_floor = mn_now; |
1066 | ev_rt_now = ev_time (); |
1714 | ev_rt_now = ev_time (); |
1067 | return 1; |
|
|
1068 | } |
|
|
1069 | } |
|
|
1070 | |
1715 | |
1071 | static void |
1716 | /* loop a few times, before making important decisions. |
1072 | time_update (EV_P) |
1717 | * on the choice of "4": one iteration isn't enough, |
1073 | { |
1718 | * in case we get preempted during the calls to |
1074 | int i; |
1719 | * ev_time and get_clock. a second call is almost guaranteed |
1075 | |
1720 | * to succeed in that case, though. and looping a few more times |
1076 | #if EV_USE_MONOTONIC |
1721 | * doesn't hurt either as we only do this on time-jumps or |
1077 | if (expect_true (have_monotonic)) |
1722 | * in the unlikely event of having been preempted here. |
1078 | { |
1723 | */ |
1079 | if (time_update_monotonic (EV_A)) |
1724 | for (i = 4; --i; ) |
1080 | { |
1725 | { |
1081 | ev_tstamp odiff = rtmn_diff; |
1726 | rtmn_diff = ev_rt_now - mn_now; |
1082 | |
1727 | |
1083 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1728 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1729 | return; /* all is well */ |
|
|
1730 | |
|
|
1731 | ev_rt_now = ev_time (); |
|
|
1732 | mn_now = get_clock (); |
|
|
1733 | now_floor = mn_now; |
|
|
1734 | } |
|
|
1735 | |
|
|
1736 | # if EV_PERIODIC_ENABLE |
|
|
1737 | periodics_reschedule (EV_A); |
|
|
1738 | # endif |
|
|
1739 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1740 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1741 | } |
|
|
1742 | else |
|
|
1743 | #endif |
|
|
1744 | { |
|
|
1745 | ev_rt_now = ev_time (); |
|
|
1746 | |
|
|
1747 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1748 | { |
|
|
1749 | #if EV_PERIODIC_ENABLE |
|
|
1750 | periodics_reschedule (EV_A); |
|
|
1751 | #endif |
|
|
1752 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1753 | for (i = 0; i < timercnt; ++i) |
1084 | { |
1754 | { |
1085 | rtmn_diff = ev_rt_now - mn_now; |
1755 | ANHE *he = timers + i + HEAP0; |
1086 | |
1756 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
1087 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1757 | ANHE_at_set (*he); |
1088 | return; /* all is well */ |
|
|
1089 | |
|
|
1090 | ev_rt_now = ev_time (); |
|
|
1091 | mn_now = get_clock (); |
|
|
1092 | now_floor = mn_now; |
|
|
1093 | } |
1758 | } |
1094 | |
|
|
1095 | periodics_reschedule (EV_A); |
|
|
1096 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1097 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1098 | } |
1759 | } |
1099 | } |
|
|
1100 | else |
|
|
1101 | #endif |
|
|
1102 | { |
|
|
1103 | ev_rt_now = ev_time (); |
|
|
1104 | |
|
|
1105 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1106 | { |
|
|
1107 | periodics_reschedule (EV_A); |
|
|
1108 | |
|
|
1109 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1110 | for (i = 0; i < timercnt; ++i) |
|
|
1111 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1112 | } |
|
|
1113 | |
1760 | |
1114 | mn_now = ev_rt_now; |
1761 | mn_now = ev_rt_now; |
1115 | } |
1762 | } |
1116 | } |
1763 | } |
1117 | |
1764 | |
… | |
… | |
1130 | static int loop_done; |
1777 | static int loop_done; |
1131 | |
1778 | |
1132 | void |
1779 | void |
1133 | ev_loop (EV_P_ int flags) |
1780 | ev_loop (EV_P_ int flags) |
1134 | { |
1781 | { |
1135 | double block; |
1782 | loop_done = EVUNLOOP_CANCEL; |
1136 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1783 | |
|
|
1784 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1137 | |
1785 | |
1138 | do |
1786 | do |
1139 | { |
1787 | { |
|
|
1788 | #ifndef _WIN32 |
|
|
1789 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1790 | if (expect_false (getpid () != curpid)) |
|
|
1791 | { |
|
|
1792 | curpid = getpid (); |
|
|
1793 | postfork = 1; |
|
|
1794 | } |
|
|
1795 | #endif |
|
|
1796 | |
|
|
1797 | #if EV_FORK_ENABLE |
|
|
1798 | /* we might have forked, so queue fork handlers */ |
|
|
1799 | if (expect_false (postfork)) |
|
|
1800 | if (forkcnt) |
|
|
1801 | { |
|
|
1802 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1803 | call_pending (EV_A); |
|
|
1804 | } |
|
|
1805 | #endif |
|
|
1806 | |
1140 | /* queue check watchers (and execute them) */ |
1807 | /* queue prepare watchers (and execute them) */ |
1141 | if (expect_false (preparecnt)) |
1808 | if (expect_false (preparecnt)) |
1142 | { |
1809 | { |
1143 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1810 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1144 | call_pending (EV_A); |
1811 | call_pending (EV_A); |
1145 | } |
1812 | } |
1146 | |
1813 | |
|
|
1814 | if (expect_false (!activecnt)) |
|
|
1815 | break; |
|
|
1816 | |
1147 | /* we might have forked, so reify kernel state if necessary */ |
1817 | /* we might have forked, so reify kernel state if necessary */ |
1148 | if (expect_false (postfork)) |
1818 | if (expect_false (postfork)) |
1149 | loop_fork (EV_A); |
1819 | loop_fork (EV_A); |
1150 | |
1820 | |
1151 | /* update fd-related kernel structures */ |
1821 | /* update fd-related kernel structures */ |
1152 | fd_reify (EV_A); |
1822 | fd_reify (EV_A); |
1153 | |
1823 | |
1154 | /* calculate blocking time */ |
1824 | /* calculate blocking time */ |
|
|
1825 | { |
|
|
1826 | ev_tstamp waittime = 0.; |
|
|
1827 | ev_tstamp sleeptime = 0.; |
1155 | |
1828 | |
1156 | /* we only need this for !monotonic clock or timers, but as we basically |
1829 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1157 | always have timers, we just calculate it always */ |
|
|
1158 | #if EV_USE_MONOTONIC |
|
|
1159 | if (expect_true (have_monotonic)) |
|
|
1160 | time_update_monotonic (EV_A); |
|
|
1161 | else |
|
|
1162 | #endif |
|
|
1163 | { |
1830 | { |
1164 | ev_rt_now = ev_time (); |
1831 | /* update time to cancel out callback processing overhead */ |
1165 | mn_now = ev_rt_now; |
1832 | time_update (EV_A_ 1e100); |
1166 | } |
|
|
1167 | |
1833 | |
1168 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1169 | block = 0.; |
|
|
1170 | else |
|
|
1171 | { |
|
|
1172 | block = MAX_BLOCKTIME; |
1834 | waittime = MAX_BLOCKTIME; |
1173 | |
1835 | |
1174 | if (timercnt) |
1836 | if (timercnt) |
1175 | { |
1837 | { |
1176 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1838 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1177 | if (block > to) block = to; |
1839 | if (waittime > to) waittime = to; |
1178 | } |
1840 | } |
1179 | |
1841 | |
|
|
1842 | #if EV_PERIODIC_ENABLE |
1180 | if (periodiccnt) |
1843 | if (periodiccnt) |
1181 | { |
1844 | { |
1182 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1845 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1183 | if (block > to) block = to; |
1846 | if (waittime > to) waittime = to; |
1184 | } |
1847 | } |
|
|
1848 | #endif |
1185 | |
1849 | |
1186 | if (block < 0.) block = 0.; |
1850 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1851 | waittime = timeout_blocktime; |
|
|
1852 | |
|
|
1853 | sleeptime = waittime - backend_fudge; |
|
|
1854 | |
|
|
1855 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1856 | sleeptime = io_blocktime; |
|
|
1857 | |
|
|
1858 | if (sleeptime) |
|
|
1859 | { |
|
|
1860 | ev_sleep (sleeptime); |
|
|
1861 | waittime -= sleeptime; |
|
|
1862 | } |
1187 | } |
1863 | } |
1188 | |
1864 | |
1189 | method_poll (EV_A_ block); |
1865 | ++loop_count; |
|
|
1866 | backend_poll (EV_A_ waittime); |
1190 | |
1867 | |
1191 | /* update ev_rt_now, do magic */ |
1868 | /* update ev_rt_now, do magic */ |
1192 | time_update (EV_A); |
1869 | time_update (EV_A_ waittime + sleeptime); |
|
|
1870 | } |
1193 | |
1871 | |
1194 | /* queue pending timers and reschedule them */ |
1872 | /* queue pending timers and reschedule them */ |
1195 | timers_reify (EV_A); /* relative timers called last */ |
1873 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1874 | #if EV_PERIODIC_ENABLE |
1196 | periodics_reify (EV_A); /* absolute timers called first */ |
1875 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1876 | #endif |
1197 | |
1877 | |
|
|
1878 | #if EV_IDLE_ENABLE |
1198 | /* queue idle watchers unless io or timers are pending */ |
1879 | /* queue idle watchers unless other events are pending */ |
1199 | if (idlecnt && !any_pending (EV_A)) |
1880 | idle_reify (EV_A); |
1200 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1881 | #endif |
1201 | |
1882 | |
1202 | /* queue check watchers, to be executed first */ |
1883 | /* queue check watchers, to be executed first */ |
1203 | if (checkcnt) |
1884 | if (expect_false (checkcnt)) |
1204 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1885 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1205 | |
1886 | |
1206 | call_pending (EV_A); |
1887 | call_pending (EV_A); |
1207 | } |
1888 | } |
1208 | while (activecnt && !loop_done); |
1889 | while (expect_true ( |
|
|
1890 | activecnt |
|
|
1891 | && !loop_done |
|
|
1892 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1893 | )); |
1209 | |
1894 | |
1210 | if (loop_done != 2) |
1895 | if (loop_done == EVUNLOOP_ONE) |
1211 | loop_done = 0; |
1896 | loop_done = EVUNLOOP_CANCEL; |
1212 | } |
1897 | } |
1213 | |
1898 | |
1214 | void |
1899 | void |
1215 | ev_unloop (EV_P_ int how) |
1900 | ev_unloop (EV_P_ int how) |
1216 | { |
1901 | { |
1217 | loop_done = how; |
1902 | loop_done = how; |
1218 | } |
1903 | } |
1219 | |
1904 | |
1220 | /*****************************************************************************/ |
1905 | /*****************************************************************************/ |
1221 | |
1906 | |
1222 | inline void |
1907 | void inline_size |
1223 | wlist_add (WL *head, WL elem) |
1908 | wlist_add (WL *head, WL elem) |
1224 | { |
1909 | { |
1225 | elem->next = *head; |
1910 | elem->next = *head; |
1226 | *head = elem; |
1911 | *head = elem; |
1227 | } |
1912 | } |
1228 | |
1913 | |
1229 | inline void |
1914 | void inline_size |
1230 | wlist_del (WL *head, WL elem) |
1915 | wlist_del (WL *head, WL elem) |
1231 | { |
1916 | { |
1232 | while (*head) |
1917 | while (*head) |
1233 | { |
1918 | { |
1234 | if (*head == elem) |
1919 | if (*head == elem) |
… | |
… | |
1239 | |
1924 | |
1240 | head = &(*head)->next; |
1925 | head = &(*head)->next; |
1241 | } |
1926 | } |
1242 | } |
1927 | } |
1243 | |
1928 | |
1244 | inline void |
1929 | void inline_speed |
1245 | ev_clear_pending (EV_P_ W w) |
1930 | clear_pending (EV_P_ W w) |
1246 | { |
1931 | { |
1247 | if (w->pending) |
1932 | if (w->pending) |
1248 | { |
1933 | { |
1249 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1934 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1250 | w->pending = 0; |
1935 | w->pending = 0; |
1251 | } |
1936 | } |
1252 | } |
1937 | } |
1253 | |
1938 | |
1254 | inline void |
1939 | int |
|
|
1940 | ev_clear_pending (EV_P_ void *w) |
|
|
1941 | { |
|
|
1942 | W w_ = (W)w; |
|
|
1943 | int pending = w_->pending; |
|
|
1944 | |
|
|
1945 | if (expect_true (pending)) |
|
|
1946 | { |
|
|
1947 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1948 | w_->pending = 0; |
|
|
1949 | p->w = 0; |
|
|
1950 | return p->events; |
|
|
1951 | } |
|
|
1952 | else |
|
|
1953 | return 0; |
|
|
1954 | } |
|
|
1955 | |
|
|
1956 | void inline_size |
|
|
1957 | pri_adjust (EV_P_ W w) |
|
|
1958 | { |
|
|
1959 | int pri = w->priority; |
|
|
1960 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1961 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1962 | w->priority = pri; |
|
|
1963 | } |
|
|
1964 | |
|
|
1965 | void inline_speed |
1255 | ev_start (EV_P_ W w, int active) |
1966 | ev_start (EV_P_ W w, int active) |
1256 | { |
1967 | { |
1257 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1968 | pri_adjust (EV_A_ w); |
1258 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1259 | |
|
|
1260 | w->active = active; |
1969 | w->active = active; |
1261 | ev_ref (EV_A); |
1970 | ev_ref (EV_A); |
1262 | } |
1971 | } |
1263 | |
1972 | |
1264 | inline void |
1973 | void inline_size |
1265 | ev_stop (EV_P_ W w) |
1974 | ev_stop (EV_P_ W w) |
1266 | { |
1975 | { |
1267 | ev_unref (EV_A); |
1976 | ev_unref (EV_A); |
1268 | w->active = 0; |
1977 | w->active = 0; |
1269 | } |
1978 | } |
1270 | |
1979 | |
1271 | /*****************************************************************************/ |
1980 | /*****************************************************************************/ |
1272 | |
1981 | |
1273 | void |
1982 | void noinline |
1274 | ev_io_start (EV_P_ struct ev_io *w) |
1983 | ev_io_start (EV_P_ ev_io *w) |
1275 | { |
1984 | { |
1276 | int fd = w->fd; |
1985 | int fd = w->fd; |
1277 | |
1986 | |
1278 | if (ev_is_active (w)) |
1987 | if (expect_false (ev_is_active (w))) |
1279 | return; |
1988 | return; |
1280 | |
1989 | |
1281 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1990 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1282 | |
1991 | |
1283 | ev_start (EV_A_ (W)w, 1); |
1992 | ev_start (EV_A_ (W)w, 1); |
1284 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1993 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1285 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1994 | wlist_add (&anfds[fd].head, (WL)w); |
1286 | |
1995 | |
1287 | fd_change (EV_A_ fd); |
1996 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1997 | w->events &= ~EV_IOFDSET; |
1288 | } |
1998 | } |
1289 | |
1999 | |
1290 | void |
2000 | void noinline |
1291 | ev_io_stop (EV_P_ struct ev_io *w) |
2001 | ev_io_stop (EV_P_ ev_io *w) |
1292 | { |
2002 | { |
1293 | ev_clear_pending (EV_A_ (W)w); |
2003 | clear_pending (EV_A_ (W)w); |
1294 | if (!ev_is_active (w)) |
2004 | if (expect_false (!ev_is_active (w))) |
1295 | return; |
2005 | return; |
1296 | |
2006 | |
|
|
2007 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2008 | |
1297 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2009 | wlist_del (&anfds[w->fd].head, (WL)w); |
1298 | ev_stop (EV_A_ (W)w); |
2010 | ev_stop (EV_A_ (W)w); |
1299 | |
2011 | |
1300 | fd_change (EV_A_ w->fd); |
2012 | fd_change (EV_A_ w->fd, 1); |
1301 | } |
2013 | } |
1302 | |
2014 | |
1303 | void |
2015 | void noinline |
1304 | ev_timer_start (EV_P_ struct ev_timer *w) |
2016 | ev_timer_start (EV_P_ ev_timer *w) |
|
|
2017 | { |
|
|
2018 | if (expect_false (ev_is_active (w))) |
|
|
2019 | return; |
|
|
2020 | |
|
|
2021 | ev_at (w) += mn_now; |
|
|
2022 | |
|
|
2023 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
2024 | |
|
|
2025 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
|
|
2026 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
|
|
2027 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2028 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2029 | upheap (timers, ev_active (w)); |
|
|
2030 | |
|
|
2031 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
|
|
2032 | } |
|
|
2033 | |
|
|
2034 | void noinline |
|
|
2035 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
2036 | { |
|
|
2037 | clear_pending (EV_A_ (W)w); |
|
|
2038 | if (expect_false (!ev_is_active (w))) |
|
|
2039 | return; |
|
|
2040 | |
|
|
2041 | { |
|
|
2042 | int active = ev_active (w); |
|
|
2043 | |
|
|
2044 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2045 | |
|
|
2046 | if (expect_true (active < timercnt + HEAP0 - 1)) |
|
|
2047 | { |
|
|
2048 | timers [active] = timers [timercnt + HEAP0 - 1]; |
|
|
2049 | adjustheap (timers, timercnt, active); |
|
|
2050 | } |
|
|
2051 | |
|
|
2052 | --timercnt; |
|
|
2053 | } |
|
|
2054 | |
|
|
2055 | ev_at (w) -= mn_now; |
|
|
2056 | |
|
|
2057 | ev_stop (EV_A_ (W)w); |
|
|
2058 | } |
|
|
2059 | |
|
|
2060 | void noinline |
|
|
2061 | ev_timer_again (EV_P_ ev_timer *w) |
1305 | { |
2062 | { |
1306 | if (ev_is_active (w)) |
2063 | if (ev_is_active (w)) |
1307 | return; |
|
|
1308 | |
|
|
1309 | ((WT)w)->at += mn_now; |
|
|
1310 | |
|
|
1311 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
1312 | |
|
|
1313 | ev_start (EV_A_ (W)w, ++timercnt); |
|
|
1314 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
|
|
1315 | timers [timercnt - 1] = w; |
|
|
1316 | upheap ((WT *)timers, timercnt - 1); |
|
|
1317 | |
|
|
1318 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1319 | } |
|
|
1320 | |
|
|
1321 | void |
|
|
1322 | ev_timer_stop (EV_P_ struct ev_timer *w) |
|
|
1323 | { |
|
|
1324 | ev_clear_pending (EV_A_ (W)w); |
|
|
1325 | if (!ev_is_active (w)) |
|
|
1326 | return; |
|
|
1327 | |
|
|
1328 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1329 | |
|
|
1330 | if (((W)w)->active < timercnt--) |
|
|
1331 | { |
|
|
1332 | timers [((W)w)->active - 1] = timers [timercnt]; |
|
|
1333 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | ((WT)w)->at = w->repeat; |
|
|
1337 | |
|
|
1338 | ev_stop (EV_A_ (W)w); |
|
|
1339 | } |
|
|
1340 | |
|
|
1341 | void |
|
|
1342 | ev_timer_again (EV_P_ struct ev_timer *w) |
|
|
1343 | { |
|
|
1344 | if (ev_is_active (w)) |
|
|
1345 | { |
2064 | { |
1346 | if (w->repeat) |
2065 | if (w->repeat) |
1347 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); |
2066 | { |
|
|
2067 | ev_at (w) = mn_now + w->repeat; |
|
|
2068 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2069 | adjustheap (timers, timercnt, ev_active (w)); |
|
|
2070 | } |
1348 | else |
2071 | else |
1349 | ev_timer_stop (EV_A_ w); |
2072 | ev_timer_stop (EV_A_ w); |
1350 | } |
2073 | } |
1351 | else if (w->repeat) |
2074 | else if (w->repeat) |
|
|
2075 | { |
|
|
2076 | ev_at (w) = w->repeat; |
1352 | ev_timer_start (EV_A_ w); |
2077 | ev_timer_start (EV_A_ w); |
|
|
2078 | } |
1353 | } |
2079 | } |
1354 | |
2080 | |
1355 | void |
2081 | #if EV_PERIODIC_ENABLE |
|
|
2082 | void noinline |
1356 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
2083 | ev_periodic_start (EV_P_ ev_periodic *w) |
1357 | { |
2084 | { |
1358 | if (ev_is_active (w)) |
2085 | if (expect_false (ev_is_active (w))) |
1359 | return; |
2086 | return; |
1360 | |
2087 | |
1361 | if (w->reschedule_cb) |
2088 | if (w->reschedule_cb) |
1362 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2089 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1363 | else if (w->interval) |
2090 | else if (w->interval) |
1364 | { |
2091 | { |
1365 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2092 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1366 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2093 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1367 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2094 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1368 | } |
2095 | } |
|
|
2096 | else |
|
|
2097 | ev_at (w) = w->offset; |
1369 | |
2098 | |
1370 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2099 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1371 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
2100 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1372 | periodics [periodiccnt - 1] = w; |
2101 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1373 | upheap ((WT *)periodics, periodiccnt - 1); |
2102 | ANHE_at_set (periodics [ev_active (w)]); |
|
|
2103 | upheap (periodics, ev_active (w)); |
1374 | |
2104 | |
1375 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2105 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1376 | } |
2106 | } |
1377 | |
2107 | |
1378 | void |
2108 | void noinline |
1379 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
2109 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1380 | { |
2110 | { |
1381 | ev_clear_pending (EV_A_ (W)w); |
2111 | clear_pending (EV_A_ (W)w); |
1382 | if (!ev_is_active (w)) |
2112 | if (expect_false (!ev_is_active (w))) |
1383 | return; |
2113 | return; |
1384 | |
2114 | |
|
|
2115 | { |
|
|
2116 | int active = ev_active (w); |
|
|
2117 | |
1385 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2118 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1386 | |
2119 | |
1387 | if (((W)w)->active < periodiccnt--) |
2120 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1388 | { |
2121 | { |
1389 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2122 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1390 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2123 | adjustheap (periodics, periodiccnt, active); |
1391 | } |
2124 | } |
|
|
2125 | |
|
|
2126 | --periodiccnt; |
|
|
2127 | } |
1392 | |
2128 | |
1393 | ev_stop (EV_A_ (W)w); |
2129 | ev_stop (EV_A_ (W)w); |
1394 | } |
2130 | } |
1395 | |
2131 | |
1396 | void |
2132 | void noinline |
1397 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
2133 | ev_periodic_again (EV_P_ ev_periodic *w) |
1398 | { |
2134 | { |
1399 | /* TODO: use adjustheap and recalculation */ |
2135 | /* TODO: use adjustheap and recalculation */ |
1400 | ev_periodic_stop (EV_A_ w); |
2136 | ev_periodic_stop (EV_A_ w); |
1401 | ev_periodic_start (EV_A_ w); |
2137 | ev_periodic_start (EV_A_ w); |
1402 | } |
2138 | } |
1403 | |
2139 | #endif |
1404 | void |
|
|
1405 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1406 | { |
|
|
1407 | if (ev_is_active (w)) |
|
|
1408 | return; |
|
|
1409 | |
|
|
1410 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1411 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1412 | idles [idlecnt - 1] = w; |
|
|
1413 | } |
|
|
1414 | |
|
|
1415 | void |
|
|
1416 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1417 | { |
|
|
1418 | ev_clear_pending (EV_A_ (W)w); |
|
|
1419 | if (ev_is_active (w)) |
|
|
1420 | return; |
|
|
1421 | |
|
|
1422 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1423 | ev_stop (EV_A_ (W)w); |
|
|
1424 | } |
|
|
1425 | |
|
|
1426 | void |
|
|
1427 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1428 | { |
|
|
1429 | if (ev_is_active (w)) |
|
|
1430 | return; |
|
|
1431 | |
|
|
1432 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1433 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1434 | prepares [preparecnt - 1] = w; |
|
|
1435 | } |
|
|
1436 | |
|
|
1437 | void |
|
|
1438 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1439 | { |
|
|
1440 | ev_clear_pending (EV_A_ (W)w); |
|
|
1441 | if (ev_is_active (w)) |
|
|
1442 | return; |
|
|
1443 | |
|
|
1444 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1445 | ev_stop (EV_A_ (W)w); |
|
|
1446 | } |
|
|
1447 | |
|
|
1448 | void |
|
|
1449 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1450 | { |
|
|
1451 | if (ev_is_active (w)) |
|
|
1452 | return; |
|
|
1453 | |
|
|
1454 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1455 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1456 | checks [checkcnt - 1] = w; |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | void |
|
|
1460 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1461 | { |
|
|
1462 | ev_clear_pending (EV_A_ (W)w); |
|
|
1463 | if (ev_is_active (w)) |
|
|
1464 | return; |
|
|
1465 | |
|
|
1466 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1467 | ev_stop (EV_A_ (W)w); |
|
|
1468 | } |
|
|
1469 | |
2140 | |
1470 | #ifndef SA_RESTART |
2141 | #ifndef SA_RESTART |
1471 | # define SA_RESTART 0 |
2142 | # define SA_RESTART 0 |
1472 | #endif |
2143 | #endif |
1473 | |
2144 | |
1474 | void |
2145 | void noinline |
1475 | ev_signal_start (EV_P_ struct ev_signal *w) |
2146 | ev_signal_start (EV_P_ ev_signal *w) |
1476 | { |
2147 | { |
1477 | #if EV_MULTIPLICITY |
2148 | #if EV_MULTIPLICITY |
1478 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
2149 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1479 | #endif |
2150 | #endif |
1480 | if (ev_is_active (w)) |
2151 | if (expect_false (ev_is_active (w))) |
1481 | return; |
2152 | return; |
1482 | |
2153 | |
1483 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2154 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1484 | |
2155 | |
|
|
2156 | evpipe_init (EV_A); |
|
|
2157 | |
|
|
2158 | { |
|
|
2159 | #ifndef _WIN32 |
|
|
2160 | sigset_t full, prev; |
|
|
2161 | sigfillset (&full); |
|
|
2162 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2163 | #endif |
|
|
2164 | |
|
|
2165 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2166 | |
|
|
2167 | #ifndef _WIN32 |
|
|
2168 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2169 | #endif |
|
|
2170 | } |
|
|
2171 | |
1485 | ev_start (EV_A_ (W)w, 1); |
2172 | ev_start (EV_A_ (W)w, 1); |
1486 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1487 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2173 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1488 | |
2174 | |
1489 | if (!((WL)w)->next) |
2175 | if (!((WL)w)->next) |
1490 | { |
2176 | { |
1491 | #if WIN32 |
2177 | #if _WIN32 |
1492 | signal (w->signum, sighandler); |
2178 | signal (w->signum, ev_sighandler); |
1493 | #else |
2179 | #else |
1494 | struct sigaction sa; |
2180 | struct sigaction sa; |
1495 | sa.sa_handler = sighandler; |
2181 | sa.sa_handler = ev_sighandler; |
1496 | sigfillset (&sa.sa_mask); |
2182 | sigfillset (&sa.sa_mask); |
1497 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2183 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1498 | sigaction (w->signum, &sa, 0); |
2184 | sigaction (w->signum, &sa, 0); |
1499 | #endif |
2185 | #endif |
1500 | } |
2186 | } |
1501 | } |
2187 | } |
1502 | |
2188 | |
1503 | void |
2189 | void noinline |
1504 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2190 | ev_signal_stop (EV_P_ ev_signal *w) |
1505 | { |
2191 | { |
1506 | ev_clear_pending (EV_A_ (W)w); |
2192 | clear_pending (EV_A_ (W)w); |
1507 | if (!ev_is_active (w)) |
2193 | if (expect_false (!ev_is_active (w))) |
1508 | return; |
2194 | return; |
1509 | |
2195 | |
1510 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2196 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1511 | ev_stop (EV_A_ (W)w); |
2197 | ev_stop (EV_A_ (W)w); |
1512 | |
2198 | |
1513 | if (!signals [w->signum - 1].head) |
2199 | if (!signals [w->signum - 1].head) |
1514 | signal (w->signum, SIG_DFL); |
2200 | signal (w->signum, SIG_DFL); |
1515 | } |
2201 | } |
1516 | |
2202 | |
1517 | void |
2203 | void |
1518 | ev_child_start (EV_P_ struct ev_child *w) |
2204 | ev_child_start (EV_P_ ev_child *w) |
1519 | { |
2205 | { |
1520 | #if EV_MULTIPLICITY |
2206 | #if EV_MULTIPLICITY |
1521 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
2207 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1522 | #endif |
2208 | #endif |
1523 | if (ev_is_active (w)) |
2209 | if (expect_false (ev_is_active (w))) |
1524 | return; |
2210 | return; |
1525 | |
2211 | |
1526 | ev_start (EV_A_ (W)w, 1); |
2212 | ev_start (EV_A_ (W)w, 1); |
1527 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2213 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1528 | } |
2214 | } |
1529 | |
2215 | |
1530 | void |
2216 | void |
1531 | ev_child_stop (EV_P_ struct ev_child *w) |
2217 | ev_child_stop (EV_P_ ev_child *w) |
1532 | { |
2218 | { |
1533 | ev_clear_pending (EV_A_ (W)w); |
2219 | clear_pending (EV_A_ (W)w); |
1534 | if (ev_is_active (w)) |
2220 | if (expect_false (!ev_is_active (w))) |
1535 | return; |
2221 | return; |
1536 | |
2222 | |
1537 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2223 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1538 | ev_stop (EV_A_ (W)w); |
2224 | ev_stop (EV_A_ (W)w); |
1539 | } |
2225 | } |
1540 | |
2226 | |
|
|
2227 | #if EV_STAT_ENABLE |
|
|
2228 | |
|
|
2229 | # ifdef _WIN32 |
|
|
2230 | # undef lstat |
|
|
2231 | # define lstat(a,b) _stati64 (a,b) |
|
|
2232 | # endif |
|
|
2233 | |
|
|
2234 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2235 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2236 | |
|
|
2237 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2238 | |
|
|
2239 | #if EV_USE_INOTIFY |
|
|
2240 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2241 | |
|
|
2242 | static void noinline |
|
|
2243 | infy_add (EV_P_ ev_stat *w) |
|
|
2244 | { |
|
|
2245 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
|
|
2246 | |
|
|
2247 | if (w->wd < 0) |
|
|
2248 | { |
|
|
2249 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2250 | |
|
|
2251 | /* monitor some parent directory for speedup hints */ |
|
|
2252 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2253 | /* but an efficiency issue only */ |
|
|
2254 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2255 | { |
|
|
2256 | char path [4096]; |
|
|
2257 | strcpy (path, w->path); |
|
|
2258 | |
|
|
2259 | do |
|
|
2260 | { |
|
|
2261 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2262 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2263 | |
|
|
2264 | char *pend = strrchr (path, '/'); |
|
|
2265 | |
|
|
2266 | if (!pend) |
|
|
2267 | break; /* whoops, no '/', complain to your admin */ |
|
|
2268 | |
|
|
2269 | *pend = 0; |
|
|
2270 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2271 | } |
|
|
2272 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2273 | } |
|
|
2274 | } |
|
|
2275 | else |
|
|
2276 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2277 | |
|
|
2278 | if (w->wd >= 0) |
|
|
2279 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2280 | } |
|
|
2281 | |
|
|
2282 | static void noinline |
|
|
2283 | infy_del (EV_P_ ev_stat *w) |
|
|
2284 | { |
|
|
2285 | int slot; |
|
|
2286 | int wd = w->wd; |
|
|
2287 | |
|
|
2288 | if (wd < 0) |
|
|
2289 | return; |
|
|
2290 | |
|
|
2291 | w->wd = -2; |
|
|
2292 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2293 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2294 | |
|
|
2295 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2296 | inotify_rm_watch (fs_fd, wd); |
|
|
2297 | } |
|
|
2298 | |
|
|
2299 | static void noinline |
|
|
2300 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2301 | { |
|
|
2302 | if (slot < 0) |
|
|
2303 | /* overflow, need to check for all hahs slots */ |
|
|
2304 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2305 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2306 | else |
|
|
2307 | { |
|
|
2308 | WL w_; |
|
|
2309 | |
|
|
2310 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2311 | { |
|
|
2312 | ev_stat *w = (ev_stat *)w_; |
|
|
2313 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2314 | |
|
|
2315 | if (w->wd == wd || wd == -1) |
|
|
2316 | { |
|
|
2317 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2318 | { |
|
|
2319 | w->wd = -1; |
|
|
2320 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2321 | } |
|
|
2322 | |
|
|
2323 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2324 | } |
|
|
2325 | } |
|
|
2326 | } |
|
|
2327 | } |
|
|
2328 | |
|
|
2329 | static void |
|
|
2330 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2331 | { |
|
|
2332 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2333 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2334 | int ofs; |
|
|
2335 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2336 | |
|
|
2337 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2338 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2339 | } |
|
|
2340 | |
|
|
2341 | void inline_size |
|
|
2342 | infy_init (EV_P) |
|
|
2343 | { |
|
|
2344 | if (fs_fd != -2) |
|
|
2345 | return; |
|
|
2346 | |
|
|
2347 | fs_fd = inotify_init (); |
|
|
2348 | |
|
|
2349 | if (fs_fd >= 0) |
|
|
2350 | { |
|
|
2351 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2352 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2353 | ev_io_start (EV_A_ &fs_w); |
|
|
2354 | } |
|
|
2355 | } |
|
|
2356 | |
|
|
2357 | void inline_size |
|
|
2358 | infy_fork (EV_P) |
|
|
2359 | { |
|
|
2360 | int slot; |
|
|
2361 | |
|
|
2362 | if (fs_fd < 0) |
|
|
2363 | return; |
|
|
2364 | |
|
|
2365 | close (fs_fd); |
|
|
2366 | fs_fd = inotify_init (); |
|
|
2367 | |
|
|
2368 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2369 | { |
|
|
2370 | WL w_ = fs_hash [slot].head; |
|
|
2371 | fs_hash [slot].head = 0; |
|
|
2372 | |
|
|
2373 | while (w_) |
|
|
2374 | { |
|
|
2375 | ev_stat *w = (ev_stat *)w_; |
|
|
2376 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2377 | |
|
|
2378 | w->wd = -1; |
|
|
2379 | |
|
|
2380 | if (fs_fd >= 0) |
|
|
2381 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2382 | else |
|
|
2383 | ev_timer_start (EV_A_ &w->timer); |
|
|
2384 | } |
|
|
2385 | |
|
|
2386 | } |
|
|
2387 | } |
|
|
2388 | |
|
|
2389 | #endif |
|
|
2390 | |
|
|
2391 | void |
|
|
2392 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2393 | { |
|
|
2394 | if (lstat (w->path, &w->attr) < 0) |
|
|
2395 | w->attr.st_nlink = 0; |
|
|
2396 | else if (!w->attr.st_nlink) |
|
|
2397 | w->attr.st_nlink = 1; |
|
|
2398 | } |
|
|
2399 | |
|
|
2400 | static void noinline |
|
|
2401 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2402 | { |
|
|
2403 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2404 | |
|
|
2405 | /* we copy this here each the time so that */ |
|
|
2406 | /* prev has the old value when the callback gets invoked */ |
|
|
2407 | w->prev = w->attr; |
|
|
2408 | ev_stat_stat (EV_A_ w); |
|
|
2409 | |
|
|
2410 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2411 | if ( |
|
|
2412 | w->prev.st_dev != w->attr.st_dev |
|
|
2413 | || w->prev.st_ino != w->attr.st_ino |
|
|
2414 | || w->prev.st_mode != w->attr.st_mode |
|
|
2415 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2416 | || w->prev.st_uid != w->attr.st_uid |
|
|
2417 | || w->prev.st_gid != w->attr.st_gid |
|
|
2418 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2419 | || w->prev.st_size != w->attr.st_size |
|
|
2420 | || w->prev.st_atime != w->attr.st_atime |
|
|
2421 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2422 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2423 | ) { |
|
|
2424 | #if EV_USE_INOTIFY |
|
|
2425 | infy_del (EV_A_ w); |
|
|
2426 | infy_add (EV_A_ w); |
|
|
2427 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2428 | #endif |
|
|
2429 | |
|
|
2430 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2431 | } |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | void |
|
|
2435 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2436 | { |
|
|
2437 | if (expect_false (ev_is_active (w))) |
|
|
2438 | return; |
|
|
2439 | |
|
|
2440 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2441 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2442 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2443 | |
|
|
2444 | ev_stat_stat (EV_A_ w); |
|
|
2445 | |
|
|
2446 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2447 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2448 | |
|
|
2449 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2450 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2451 | |
|
|
2452 | #if EV_USE_INOTIFY |
|
|
2453 | infy_init (EV_A); |
|
|
2454 | |
|
|
2455 | if (fs_fd >= 0) |
|
|
2456 | infy_add (EV_A_ w); |
|
|
2457 | else |
|
|
2458 | #endif |
|
|
2459 | ev_timer_start (EV_A_ &w->timer); |
|
|
2460 | |
|
|
2461 | ev_start (EV_A_ (W)w, 1); |
|
|
2462 | } |
|
|
2463 | |
|
|
2464 | void |
|
|
2465 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2466 | { |
|
|
2467 | clear_pending (EV_A_ (W)w); |
|
|
2468 | if (expect_false (!ev_is_active (w))) |
|
|
2469 | return; |
|
|
2470 | |
|
|
2471 | #if EV_USE_INOTIFY |
|
|
2472 | infy_del (EV_A_ w); |
|
|
2473 | #endif |
|
|
2474 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2475 | |
|
|
2476 | ev_stop (EV_A_ (W)w); |
|
|
2477 | } |
|
|
2478 | #endif |
|
|
2479 | |
|
|
2480 | #if EV_IDLE_ENABLE |
|
|
2481 | void |
|
|
2482 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2483 | { |
|
|
2484 | if (expect_false (ev_is_active (w))) |
|
|
2485 | return; |
|
|
2486 | |
|
|
2487 | pri_adjust (EV_A_ (W)w); |
|
|
2488 | |
|
|
2489 | { |
|
|
2490 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2491 | |
|
|
2492 | ++idleall; |
|
|
2493 | ev_start (EV_A_ (W)w, active); |
|
|
2494 | |
|
|
2495 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2496 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2497 | } |
|
|
2498 | } |
|
|
2499 | |
|
|
2500 | void |
|
|
2501 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2502 | { |
|
|
2503 | clear_pending (EV_A_ (W)w); |
|
|
2504 | if (expect_false (!ev_is_active (w))) |
|
|
2505 | return; |
|
|
2506 | |
|
|
2507 | { |
|
|
2508 | int active = ev_active (w); |
|
|
2509 | |
|
|
2510 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2511 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2512 | |
|
|
2513 | ev_stop (EV_A_ (W)w); |
|
|
2514 | --idleall; |
|
|
2515 | } |
|
|
2516 | } |
|
|
2517 | #endif |
|
|
2518 | |
|
|
2519 | void |
|
|
2520 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2521 | { |
|
|
2522 | if (expect_false (ev_is_active (w))) |
|
|
2523 | return; |
|
|
2524 | |
|
|
2525 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2526 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2527 | prepares [preparecnt - 1] = w; |
|
|
2528 | } |
|
|
2529 | |
|
|
2530 | void |
|
|
2531 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2532 | { |
|
|
2533 | clear_pending (EV_A_ (W)w); |
|
|
2534 | if (expect_false (!ev_is_active (w))) |
|
|
2535 | return; |
|
|
2536 | |
|
|
2537 | { |
|
|
2538 | int active = ev_active (w); |
|
|
2539 | |
|
|
2540 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2541 | ev_active (prepares [active - 1]) = active; |
|
|
2542 | } |
|
|
2543 | |
|
|
2544 | ev_stop (EV_A_ (W)w); |
|
|
2545 | } |
|
|
2546 | |
|
|
2547 | void |
|
|
2548 | ev_check_start (EV_P_ ev_check *w) |
|
|
2549 | { |
|
|
2550 | if (expect_false (ev_is_active (w))) |
|
|
2551 | return; |
|
|
2552 | |
|
|
2553 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2554 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2555 | checks [checkcnt - 1] = w; |
|
|
2556 | } |
|
|
2557 | |
|
|
2558 | void |
|
|
2559 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2560 | { |
|
|
2561 | clear_pending (EV_A_ (W)w); |
|
|
2562 | if (expect_false (!ev_is_active (w))) |
|
|
2563 | return; |
|
|
2564 | |
|
|
2565 | { |
|
|
2566 | int active = ev_active (w); |
|
|
2567 | |
|
|
2568 | checks [active - 1] = checks [--checkcnt]; |
|
|
2569 | ev_active (checks [active - 1]) = active; |
|
|
2570 | } |
|
|
2571 | |
|
|
2572 | ev_stop (EV_A_ (W)w); |
|
|
2573 | } |
|
|
2574 | |
|
|
2575 | #if EV_EMBED_ENABLE |
|
|
2576 | void noinline |
|
|
2577 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2578 | { |
|
|
2579 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2580 | } |
|
|
2581 | |
|
|
2582 | static void |
|
|
2583 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2584 | { |
|
|
2585 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2586 | |
|
|
2587 | if (ev_cb (w)) |
|
|
2588 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2589 | else |
|
|
2590 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2591 | } |
|
|
2592 | |
|
|
2593 | static void |
|
|
2594 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2595 | { |
|
|
2596 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2597 | |
|
|
2598 | { |
|
|
2599 | struct ev_loop *loop = w->other; |
|
|
2600 | |
|
|
2601 | while (fdchangecnt) |
|
|
2602 | { |
|
|
2603 | fd_reify (EV_A); |
|
|
2604 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2605 | } |
|
|
2606 | } |
|
|
2607 | } |
|
|
2608 | |
|
|
2609 | #if 0 |
|
|
2610 | static void |
|
|
2611 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2612 | { |
|
|
2613 | ev_idle_stop (EV_A_ idle); |
|
|
2614 | } |
|
|
2615 | #endif |
|
|
2616 | |
|
|
2617 | void |
|
|
2618 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2619 | { |
|
|
2620 | if (expect_false (ev_is_active (w))) |
|
|
2621 | return; |
|
|
2622 | |
|
|
2623 | { |
|
|
2624 | struct ev_loop *loop = w->other; |
|
|
2625 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2626 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2627 | } |
|
|
2628 | |
|
|
2629 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2630 | ev_io_start (EV_A_ &w->io); |
|
|
2631 | |
|
|
2632 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2633 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2634 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2635 | |
|
|
2636 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2637 | |
|
|
2638 | ev_start (EV_A_ (W)w, 1); |
|
|
2639 | } |
|
|
2640 | |
|
|
2641 | void |
|
|
2642 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2643 | { |
|
|
2644 | clear_pending (EV_A_ (W)w); |
|
|
2645 | if (expect_false (!ev_is_active (w))) |
|
|
2646 | return; |
|
|
2647 | |
|
|
2648 | ev_io_stop (EV_A_ &w->io); |
|
|
2649 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2650 | |
|
|
2651 | ev_stop (EV_A_ (W)w); |
|
|
2652 | } |
|
|
2653 | #endif |
|
|
2654 | |
|
|
2655 | #if EV_FORK_ENABLE |
|
|
2656 | void |
|
|
2657 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2658 | { |
|
|
2659 | if (expect_false (ev_is_active (w))) |
|
|
2660 | return; |
|
|
2661 | |
|
|
2662 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2663 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2664 | forks [forkcnt - 1] = w; |
|
|
2665 | } |
|
|
2666 | |
|
|
2667 | void |
|
|
2668 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2669 | { |
|
|
2670 | clear_pending (EV_A_ (W)w); |
|
|
2671 | if (expect_false (!ev_is_active (w))) |
|
|
2672 | return; |
|
|
2673 | |
|
|
2674 | { |
|
|
2675 | int active = ev_active (w); |
|
|
2676 | |
|
|
2677 | forks [active - 1] = forks [--forkcnt]; |
|
|
2678 | ev_active (forks [active - 1]) = active; |
|
|
2679 | } |
|
|
2680 | |
|
|
2681 | ev_stop (EV_A_ (W)w); |
|
|
2682 | } |
|
|
2683 | #endif |
|
|
2684 | |
|
|
2685 | #if EV_ASYNC_ENABLE |
|
|
2686 | void |
|
|
2687 | ev_async_start (EV_P_ ev_async *w) |
|
|
2688 | { |
|
|
2689 | if (expect_false (ev_is_active (w))) |
|
|
2690 | return; |
|
|
2691 | |
|
|
2692 | evpipe_init (EV_A); |
|
|
2693 | |
|
|
2694 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2695 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2696 | asyncs [asynccnt - 1] = w; |
|
|
2697 | } |
|
|
2698 | |
|
|
2699 | void |
|
|
2700 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2701 | { |
|
|
2702 | clear_pending (EV_A_ (W)w); |
|
|
2703 | if (expect_false (!ev_is_active (w))) |
|
|
2704 | return; |
|
|
2705 | |
|
|
2706 | { |
|
|
2707 | int active = ev_active (w); |
|
|
2708 | |
|
|
2709 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2710 | ev_active (asyncs [active - 1]) = active; |
|
|
2711 | } |
|
|
2712 | |
|
|
2713 | ev_stop (EV_A_ (W)w); |
|
|
2714 | } |
|
|
2715 | |
|
|
2716 | void |
|
|
2717 | ev_async_send (EV_P_ ev_async *w) |
|
|
2718 | { |
|
|
2719 | w->sent = 1; |
|
|
2720 | evpipe_write (EV_A_ &gotasync); |
|
|
2721 | } |
|
|
2722 | #endif |
|
|
2723 | |
1541 | /*****************************************************************************/ |
2724 | /*****************************************************************************/ |
1542 | |
2725 | |
1543 | struct ev_once |
2726 | struct ev_once |
1544 | { |
2727 | { |
1545 | struct ev_io io; |
2728 | ev_io io; |
1546 | struct ev_timer to; |
2729 | ev_timer to; |
1547 | void (*cb)(int revents, void *arg); |
2730 | void (*cb)(int revents, void *arg); |
1548 | void *arg; |
2731 | void *arg; |
1549 | }; |
2732 | }; |
1550 | |
2733 | |
1551 | static void |
2734 | static void |
… | |
… | |
1560 | |
2743 | |
1561 | cb (revents, arg); |
2744 | cb (revents, arg); |
1562 | } |
2745 | } |
1563 | |
2746 | |
1564 | static void |
2747 | static void |
1565 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2748 | once_cb_io (EV_P_ ev_io *w, int revents) |
1566 | { |
2749 | { |
1567 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2750 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1568 | } |
2751 | } |
1569 | |
2752 | |
1570 | static void |
2753 | static void |
1571 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2754 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1572 | { |
2755 | { |
1573 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2756 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1574 | } |
2757 | } |
1575 | |
2758 | |
1576 | void |
2759 | void |
1577 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2760 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1578 | { |
2761 | { |
1579 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2762 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1580 | |
2763 | |
1581 | if (!once) |
2764 | if (expect_false (!once)) |
|
|
2765 | { |
1582 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2766 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1583 | else |
2767 | return; |
1584 | { |
2768 | } |
|
|
2769 | |
1585 | once->cb = cb; |
2770 | once->cb = cb; |
1586 | once->arg = arg; |
2771 | once->arg = arg; |
1587 | |
2772 | |
1588 | ev_init (&once->io, once_cb_io); |
2773 | ev_init (&once->io, once_cb_io); |
1589 | if (fd >= 0) |
2774 | if (fd >= 0) |
1590 | { |
2775 | { |
1591 | ev_io_set (&once->io, fd, events); |
2776 | ev_io_set (&once->io, fd, events); |
1592 | ev_io_start (EV_A_ &once->io); |
2777 | ev_io_start (EV_A_ &once->io); |
1593 | } |
2778 | } |
1594 | |
2779 | |
1595 | ev_init (&once->to, once_cb_to); |
2780 | ev_init (&once->to, once_cb_to); |
1596 | if (timeout >= 0.) |
2781 | if (timeout >= 0.) |
1597 | { |
2782 | { |
1598 | ev_timer_set (&once->to, timeout, 0.); |
2783 | ev_timer_set (&once->to, timeout, 0.); |
1599 | ev_timer_start (EV_A_ &once->to); |
2784 | ev_timer_start (EV_A_ &once->to); |
1600 | } |
|
|
1601 | } |
2785 | } |
1602 | } |
2786 | } |
|
|
2787 | |
|
|
2788 | #if EV_MULTIPLICITY |
|
|
2789 | #include "ev_wrap.h" |
|
|
2790 | #endif |
1603 | |
2791 | |
1604 | #ifdef __cplusplus |
2792 | #ifdef __cplusplus |
1605 | } |
2793 | } |
1606 | #endif |
2794 | #endif |
1607 | |
2795 | |