1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
51 | |
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
|
|
53 | |
|
|
54 | # if HAVE_CLOCK_SYSCALL |
|
|
55 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
56 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
57 | # ifndef EV_USE_REALTIME |
|
|
58 | # define EV_USE_REALTIME 0 |
|
|
59 | # endif |
|
|
60 | # ifndef EV_USE_MONOTONIC |
|
|
61 | # define EV_USE_MONOTONIC 1 |
|
|
62 | # endif |
|
|
63 | # endif |
|
|
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
66 | # endif |
|
|
67 | |
52 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
71 | # endif |
56 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
58 | # endif |
74 | # endif |
59 | # else |
75 | # else |
60 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
78 | # endif |
63 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
65 | # endif |
81 | # endif |
66 | # endif |
82 | # endif |
67 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
71 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
74 | # endif |
100 | # endif |
75 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
105 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
109 | # endif |
91 | |
110 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
95 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
98 | # endif |
118 | # endif |
99 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
100 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
106 | # endif |
127 | # endif |
107 | |
128 | |
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
111 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
114 | # endif |
136 | # endif |
115 | |
137 | |
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
121 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
122 | # endif |
145 | # endif |
123 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
124 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
125 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
130 | # endif |
154 | # endif |
131 | |
155 | |
|
|
156 | # if HAVE_EVENTFD |
|
|
157 | # ifndef EV_USE_EVENTFD |
|
|
158 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_EVENTFD |
|
|
162 | # define EV_USE_EVENTFD 0 |
132 | #endif |
163 | # endif |
|
|
164 | |
|
|
165 | #endif |
133 | |
166 | |
134 | #include <math.h> |
|
|
135 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
136 | #include <fcntl.h> |
169 | #include <fcntl.h> |
137 | #include <stddef.h> |
170 | #include <stddef.h> |
138 | |
171 | |
139 | #include <stdio.h> |
172 | #include <stdio.h> |
140 | |
173 | |
141 | #include <assert.h> |
174 | #include <assert.h> |
142 | #include <errno.h> |
175 | #include <errno.h> |
143 | #include <sys/types.h> |
176 | #include <sys/types.h> |
144 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
145 | |
179 | |
146 | #include <signal.h> |
180 | #include <signal.h> |
147 | |
181 | |
148 | #ifdef EV_H |
182 | #ifdef EV_H |
149 | # include EV_H |
183 | # include EV_H |
150 | #else |
184 | #else |
151 | # include "ev.h" |
185 | # include "ev.h" |
|
|
186 | #endif |
|
|
187 | |
|
|
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
152 | #endif |
197 | #endif |
153 | |
198 | |
154 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
200 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
157 | # include <unistd.h> |
202 | # include <unistd.h> |
158 | #else |
203 | #else |
|
|
204 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
206 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
207 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
208 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
209 | # endif |
|
|
210 | # undef EV_AVOID_STDIO |
164 | #endif |
211 | #endif |
|
|
212 | |
|
|
213 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
214 | * a limit of 1024 into their select. Where people have brains, |
|
|
215 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
216 | * ordered to have a vacuum, or they do anything for money. |
|
|
217 | * This might help. Or not. |
|
|
218 | */ |
|
|
219 | #define _DARWIN_UNLIMITED_SELECT 1 |
165 | |
220 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
221 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
222 | |
|
|
223 | /* try to deduce the maximum number of signals on this platform */ |
|
|
224 | #if defined (EV_NSIG) |
|
|
225 | /* use what's provided */ |
|
|
226 | #elif defined (NSIG) |
|
|
227 | # define EV_NSIG (NSIG) |
|
|
228 | #elif defined(_NSIG) |
|
|
229 | # define EV_NSIG (_NSIG) |
|
|
230 | #elif defined (SIGMAX) |
|
|
231 | # define EV_NSIG (SIGMAX+1) |
|
|
232 | #elif defined (SIG_MAX) |
|
|
233 | # define EV_NSIG (SIG_MAX+1) |
|
|
234 | #elif defined (_SIG_MAX) |
|
|
235 | # define EV_NSIG (_SIG_MAX+1) |
|
|
236 | #elif defined (MAXSIG) |
|
|
237 | # define EV_NSIG (MAXSIG+1) |
|
|
238 | #elif defined (MAX_SIG) |
|
|
239 | # define EV_NSIG (MAX_SIG+1) |
|
|
240 | #elif defined (SIGARRAYSIZE) |
|
|
241 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
242 | #elif defined (_sys_nsig) |
|
|
243 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
244 | #else |
|
|
245 | # error "unable to find value for NSIG, please report" |
|
|
246 | /* to make it compile regardless, just remove the above line, */ |
|
|
247 | /* but consider reporting it, too! :) */ |
|
|
248 | # define EV_NSIG 65 |
|
|
249 | #endif |
|
|
250 | |
|
|
251 | #ifndef EV_USE_FLOOR |
|
|
252 | # define EV_USE_FLOOR 0 |
|
|
253 | #endif |
|
|
254 | |
|
|
255 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
256 | # if __linux && __GLIBC__ >= 2 |
|
|
257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
258 | # else |
|
|
259 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
260 | # endif |
|
|
261 | #endif |
|
|
262 | |
168 | #ifndef EV_USE_MONOTONIC |
263 | #ifndef EV_USE_MONOTONIC |
|
|
264 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
265 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
266 | # else |
169 | # define EV_USE_MONOTONIC 0 |
267 | # define EV_USE_MONOTONIC 0 |
|
|
268 | # endif |
170 | #endif |
269 | #endif |
171 | |
270 | |
172 | #ifndef EV_USE_REALTIME |
271 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
272 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
273 | #endif |
175 | |
274 | |
176 | #ifndef EV_USE_NANOSLEEP |
275 | #ifndef EV_USE_NANOSLEEP |
|
|
276 | # if _POSIX_C_SOURCE >= 199309L |
|
|
277 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
278 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
279 | # define EV_USE_NANOSLEEP 0 |
|
|
280 | # endif |
178 | #endif |
281 | #endif |
179 | |
282 | |
180 | #ifndef EV_USE_SELECT |
283 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
284 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
285 | #endif |
183 | |
286 | |
184 | #ifndef EV_USE_POLL |
287 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
288 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
289 | # define EV_USE_POLL 0 |
187 | # else |
290 | # else |
188 | # define EV_USE_POLL 1 |
291 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
292 | # endif |
190 | #endif |
293 | #endif |
191 | |
294 | |
192 | #ifndef EV_USE_EPOLL |
295 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
296 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
297 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
298 | # else |
196 | # define EV_USE_EPOLL 0 |
299 | # define EV_USE_EPOLL 0 |
197 | # endif |
300 | # endif |
198 | #endif |
301 | #endif |
199 | |
302 | |
… | |
… | |
205 | # define EV_USE_PORT 0 |
308 | # define EV_USE_PORT 0 |
206 | #endif |
309 | #endif |
207 | |
310 | |
208 | #ifndef EV_USE_INOTIFY |
311 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
313 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
314 | # else |
212 | # define EV_USE_INOTIFY 0 |
315 | # define EV_USE_INOTIFY 0 |
213 | # endif |
316 | # endif |
214 | #endif |
317 | #endif |
215 | |
318 | |
216 | #ifndef EV_PID_HASHSIZE |
319 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
320 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
218 | # define EV_PID_HASHSIZE 1 |
|
|
219 | # else |
|
|
220 | # define EV_PID_HASHSIZE 16 |
|
|
221 | # endif |
|
|
222 | #endif |
321 | #endif |
223 | |
322 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
323 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
324 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
226 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
227 | # else |
|
|
228 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
229 | # endif |
|
|
230 | #endif |
325 | #endif |
231 | |
326 | |
232 | #ifndef EV_USE_EVENTFD |
327 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
328 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
329 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
330 | # else |
236 | # define EV_USE_EVENTFD 0 |
331 | # define EV_USE_EVENTFD 0 |
237 | # endif |
332 | # endif |
238 | #endif |
333 | #endif |
239 | |
334 | |
|
|
335 | #ifndef EV_USE_SIGNALFD |
|
|
336 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
337 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
338 | # else |
|
|
339 | # define EV_USE_SIGNALFD 0 |
|
|
340 | # endif |
|
|
341 | #endif |
|
|
342 | |
|
|
343 | #if 0 /* debugging */ |
|
|
344 | # define EV_VERIFY 3 |
|
|
345 | # define EV_USE_4HEAP 1 |
|
|
346 | # define EV_HEAP_CACHE_AT 1 |
|
|
347 | #endif |
|
|
348 | |
|
|
349 | #ifndef EV_VERIFY |
|
|
350 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
351 | #endif |
|
|
352 | |
|
|
353 | #ifndef EV_USE_4HEAP |
|
|
354 | # define EV_USE_4HEAP EV_FEATURE_DATA |
|
|
355 | #endif |
|
|
356 | |
|
|
357 | #ifndef EV_HEAP_CACHE_AT |
|
|
358 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
359 | #endif |
|
|
360 | |
|
|
361 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
362 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
363 | #if EV_USE_CLOCK_SYSCALL |
|
|
364 | # include <syscall.h> |
|
|
365 | # ifdef SYS_clock_gettime |
|
|
366 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
367 | # undef EV_USE_MONOTONIC |
|
|
368 | # define EV_USE_MONOTONIC 1 |
|
|
369 | # else |
|
|
370 | # undef EV_USE_CLOCK_SYSCALL |
|
|
371 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
372 | # endif |
|
|
373 | #endif |
|
|
374 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
375 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
376 | |
|
|
377 | #ifdef _AIX |
|
|
378 | /* AIX has a completely broken poll.h header */ |
|
|
379 | # undef EV_USE_POLL |
|
|
380 | # define EV_USE_POLL 0 |
|
|
381 | #endif |
241 | |
382 | |
242 | #ifndef CLOCK_MONOTONIC |
383 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
385 | # define EV_USE_MONOTONIC 0 |
245 | #endif |
386 | #endif |
… | |
… | |
253 | # undef EV_USE_INOTIFY |
394 | # undef EV_USE_INOTIFY |
254 | # define EV_USE_INOTIFY 0 |
395 | # define EV_USE_INOTIFY 0 |
255 | #endif |
396 | #endif |
256 | |
397 | |
257 | #if !EV_USE_NANOSLEEP |
398 | #if !EV_USE_NANOSLEEP |
258 | # ifndef _WIN32 |
399 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
400 | # if !defined(_WIN32) && !defined(__hpux) |
259 | # include <sys/select.h> |
401 | # include <sys/select.h> |
260 | # endif |
402 | # endif |
261 | #endif |
403 | #endif |
262 | |
404 | |
263 | #if EV_USE_INOTIFY |
405 | #if EV_USE_INOTIFY |
|
|
406 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
407 | # include <sys/inotify.h> |
|
|
408 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
409 | # ifndef IN_DONT_FOLLOW |
|
|
410 | # undef EV_USE_INOTIFY |
|
|
411 | # define EV_USE_INOTIFY 0 |
|
|
412 | # endif |
265 | #endif |
413 | #endif |
266 | |
414 | |
267 | #if EV_SELECT_IS_WINSOCKET |
415 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
416 | # include <winsock.h> |
269 | #endif |
417 | #endif |
270 | |
418 | |
271 | #if EV_USE_EVENTFD |
419 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
420 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
421 | # include <stdint.h> |
274 | # ifdef __cplusplus |
422 | # ifndef EFD_NONBLOCK |
275 | extern "C" { |
423 | # define EFD_NONBLOCK O_NONBLOCK |
276 | # endif |
424 | # endif |
277 | int eventfd (unsigned int initval, int flags); |
425 | # ifndef EFD_CLOEXEC |
278 | # ifdef __cplusplus |
426 | # ifdef O_CLOEXEC |
279 | } |
427 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
428 | # else |
|
|
429 | # define EFD_CLOEXEC 02000000 |
|
|
430 | # endif |
280 | # endif |
431 | # endif |
|
|
432 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
433 | #endif |
|
|
434 | |
|
|
435 | #if EV_USE_SIGNALFD |
|
|
436 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
437 | # include <stdint.h> |
|
|
438 | # ifndef SFD_NONBLOCK |
|
|
439 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
440 | # endif |
|
|
441 | # ifndef SFD_CLOEXEC |
|
|
442 | # ifdef O_CLOEXEC |
|
|
443 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
444 | # else |
|
|
445 | # define SFD_CLOEXEC 02000000 |
|
|
446 | # endif |
|
|
447 | # endif |
|
|
448 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
449 | |
|
|
450 | struct signalfd_siginfo |
|
|
451 | { |
|
|
452 | uint32_t ssi_signo; |
|
|
453 | char pad[128 - sizeof (uint32_t)]; |
|
|
454 | }; |
281 | #endif |
455 | #endif |
282 | |
456 | |
283 | /**/ |
457 | /**/ |
284 | |
458 | |
|
|
459 | #if EV_VERIFY >= 3 |
|
|
460 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
461 | #else |
|
|
462 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
463 | #endif |
|
|
464 | |
285 | /* |
465 | /* |
286 | * This is used to avoid floating point rounding problems. |
466 | * This is used to work around floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
|
|
288 | * to ensure progress, time-wise, even when rounding |
|
|
289 | * errors are against us. |
|
|
290 | * This value is good at least till the year 4000. |
467 | * This value is good at least till the year 4000. |
291 | * Better solutions welcome. |
|
|
292 | */ |
468 | */ |
293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
469 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
470 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
294 | |
471 | |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
472 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
473 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
298 | |
474 | |
|
|
475 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
476 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
477 | |
|
|
478 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
479 | /* ECB.H BEGIN */ |
|
|
480 | /* |
|
|
481 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
482 | * |
|
|
483 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
484 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
485 | * All rights reserved. |
|
|
486 | * |
|
|
487 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
488 | * tion, are permitted provided that the following conditions are met: |
|
|
489 | * |
|
|
490 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
491 | * this list of conditions and the following disclaimer. |
|
|
492 | * |
|
|
493 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
494 | * notice, this list of conditions and the following disclaimer in the |
|
|
495 | * documentation and/or other materials provided with the distribution. |
|
|
496 | * |
|
|
497 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
498 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
499 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
500 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
501 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
502 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
503 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
504 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
505 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
506 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
507 | */ |
|
|
508 | |
|
|
509 | #ifndef ECB_H |
|
|
510 | #define ECB_H |
|
|
511 | |
|
|
512 | #ifdef _WIN32 |
|
|
513 | typedef signed char int8_t; |
|
|
514 | typedef unsigned char uint8_t; |
|
|
515 | typedef signed short int16_t; |
|
|
516 | typedef unsigned short uint16_t; |
|
|
517 | typedef signed int int32_t; |
|
|
518 | typedef unsigned int uint32_t; |
299 | #if __GNUC__ >= 4 |
519 | #if __GNUC__ |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
520 | typedef signed long long int64_t; |
301 | # define noinline __attribute__ ((noinline)) |
521 | typedef unsigned long long uint64_t; |
|
|
522 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
523 | typedef signed __int64 int64_t; |
|
|
524 | typedef unsigned __int64 uint64_t; |
|
|
525 | #endif |
302 | #else |
526 | #else |
303 | # define expect(expr,value) (expr) |
527 | #include <inttypes.h> |
304 | # define noinline |
|
|
305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
306 | # define inline |
|
|
307 | # endif |
528 | #endif |
|
|
529 | |
|
|
530 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
531 | * what their idiot authors think are the "more important" extensions, |
|
|
532 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
533 | * or so. |
|
|
534 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
535 | * an issue with that they should have done it right in the first place. |
|
|
536 | */ |
|
|
537 | #ifndef ECB_GCC_VERSION |
|
|
538 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
|
539 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
540 | #else |
|
|
541 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
308 | #endif |
542 | #endif |
|
|
543 | #endif |
309 | |
544 | |
|
|
545 | /*****************************************************************************/ |
|
|
546 | |
|
|
547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
548 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
549 | |
|
|
550 | #if ECB_NO_THREADS |
|
|
551 | # define ECB_NO_SMP 1 |
|
|
552 | #endif |
|
|
553 | |
|
|
554 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
555 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
556 | #endif |
|
|
557 | |
|
|
558 | #ifndef ECB_MEMORY_FENCE |
|
|
559 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
560 | #if __i386 || __i386__ |
|
|
561 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
562 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
567 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
570 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
|
|
571 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
|
|
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
573 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
|
|
574 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
|
|
575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
576 | #elif __sparc || __sparc__ |
|
|
577 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
|
|
578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
580 | #elif defined(__s390__) || defined(__s390x__) |
|
|
581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
582 | #elif defined(__mips__) |
|
|
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
584 | #endif |
|
|
585 | #endif |
|
|
586 | #endif |
|
|
587 | |
|
|
588 | #ifndef ECB_MEMORY_FENCE |
|
|
589 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
|
|
590 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
591 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
592 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
593 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
594 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
595 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
596 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
597 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
598 | #elif defined(_WIN32) |
|
|
599 | #include <WinNT.h> |
|
|
600 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
601 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
602 | #include <mbarrier.h> |
|
|
603 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
604 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
605 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
606 | #elif __xlC__ |
|
|
607 | #define ECB_MEMORY_FENCE __sync () |
|
|
608 | #endif |
|
|
609 | #endif |
|
|
610 | |
|
|
611 | #ifndef ECB_MEMORY_FENCE |
|
|
612 | #if !ECB_AVOID_PTHREADS |
|
|
613 | /* |
|
|
614 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
615 | * or failure to find pthread.h, then you should implement |
|
|
616 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
617 | * OR provide pthread.h and link against the posix thread library |
|
|
618 | * of your system. |
|
|
619 | */ |
|
|
620 | #include <pthread.h> |
|
|
621 | #define ECB_NEEDS_PTHREADS 1 |
|
|
622 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
623 | |
|
|
624 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
625 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
626 | #endif |
|
|
627 | #endif |
|
|
628 | |
|
|
629 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
630 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
631 | #endif |
|
|
632 | |
|
|
633 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
634 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
635 | #endif |
|
|
636 | |
|
|
637 | /*****************************************************************************/ |
|
|
638 | |
|
|
639 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
640 | |
|
|
641 | #if __cplusplus |
|
|
642 | #define ecb_inline static inline |
|
|
643 | #elif ECB_GCC_VERSION(2,5) |
|
|
644 | #define ecb_inline static __inline__ |
|
|
645 | #elif ECB_C99 |
|
|
646 | #define ecb_inline static inline |
|
|
647 | #else |
|
|
648 | #define ecb_inline static |
|
|
649 | #endif |
|
|
650 | |
|
|
651 | #if ECB_GCC_VERSION(3,3) |
|
|
652 | #define ecb_restrict __restrict__ |
|
|
653 | #elif ECB_C99 |
|
|
654 | #define ecb_restrict restrict |
|
|
655 | #else |
|
|
656 | #define ecb_restrict |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | typedef int ecb_bool; |
|
|
660 | |
|
|
661 | #define ECB_CONCAT_(a, b) a ## b |
|
|
662 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
663 | #define ECB_STRINGIFY_(a) # a |
|
|
664 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
665 | |
|
|
666 | #define ecb_function_ ecb_inline |
|
|
667 | |
|
|
668 | #if ECB_GCC_VERSION(3,1) |
|
|
669 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
670 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
671 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
672 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
673 | #else |
|
|
674 | #define ecb_attribute(attrlist) |
|
|
675 | #define ecb_is_constant(expr) 0 |
|
|
676 | #define ecb_expect(expr,value) (expr) |
|
|
677 | #define ecb_prefetch(addr,rw,locality) |
|
|
678 | #endif |
|
|
679 | |
|
|
680 | /* no emulation for ecb_decltype */ |
|
|
681 | #if ECB_GCC_VERSION(4,5) |
|
|
682 | #define ecb_decltype(x) __decltype(x) |
|
|
683 | #elif ECB_GCC_VERSION(3,0) |
|
|
684 | #define ecb_decltype(x) __typeof(x) |
|
|
685 | #endif |
|
|
686 | |
|
|
687 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
688 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
689 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
690 | #define ecb_const ecb_attribute ((__const__)) |
|
|
691 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
692 | |
|
|
693 | #if ECB_GCC_VERSION(4,3) |
|
|
694 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
695 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
696 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
697 | #else |
|
|
698 | #define ecb_artificial |
|
|
699 | #define ecb_hot |
|
|
700 | #define ecb_cold |
|
|
701 | #endif |
|
|
702 | |
|
|
703 | /* put around conditional expressions if you are very sure that the */ |
|
|
704 | /* expression is mostly true or mostly false. note that these return */ |
|
|
705 | /* booleans, not the expression. */ |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
706 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
707 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
708 | /* for compatibility to the rest of the world */ |
|
|
709 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
710 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
711 | |
|
|
712 | /* count trailing zero bits and count # of one bits */ |
|
|
713 | #if ECB_GCC_VERSION(3,4) |
|
|
714 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
715 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
716 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
717 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
718 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
719 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
720 | /* no popcountll */ |
|
|
721 | #else |
|
|
722 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
723 | ecb_function_ int |
|
|
724 | ecb_ctz32 (uint32_t x) |
|
|
725 | { |
|
|
726 | int r = 0; |
|
|
727 | |
|
|
728 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
729 | |
|
|
730 | #if ECB_branchless_on_i386 |
|
|
731 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
732 | r += !!(x & 0xcccccccc) << 1; |
|
|
733 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
734 | r += !!(x & 0xff00ff00) << 3; |
|
|
735 | r += !!(x & 0xffff0000) << 4; |
|
|
736 | #else |
|
|
737 | if (x & 0xaaaaaaaa) r += 1; |
|
|
738 | if (x & 0xcccccccc) r += 2; |
|
|
739 | if (x & 0xf0f0f0f0) r += 4; |
|
|
740 | if (x & 0xff00ff00) r += 8; |
|
|
741 | if (x & 0xffff0000) r += 16; |
|
|
742 | #endif |
|
|
743 | |
|
|
744 | return r; |
|
|
745 | } |
|
|
746 | |
|
|
747 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
748 | ecb_function_ int |
|
|
749 | ecb_ctz64 (uint64_t x) |
|
|
750 | { |
|
|
751 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
752 | return ecb_ctz32 (x >> shift) + shift; |
|
|
753 | } |
|
|
754 | |
|
|
755 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
756 | ecb_function_ int |
|
|
757 | ecb_popcount32 (uint32_t x) |
|
|
758 | { |
|
|
759 | x -= (x >> 1) & 0x55555555; |
|
|
760 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
761 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
762 | x *= 0x01010101; |
|
|
763 | |
|
|
764 | return x >> 24; |
|
|
765 | } |
|
|
766 | |
|
|
767 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
768 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
769 | { |
|
|
770 | int r = 0; |
|
|
771 | |
|
|
772 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
773 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
774 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
775 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
776 | if (x >> 1) { r += 1; } |
|
|
777 | |
|
|
778 | return r; |
|
|
779 | } |
|
|
780 | |
|
|
781 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
782 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
783 | { |
|
|
784 | int r = 0; |
|
|
785 | |
|
|
786 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
787 | |
|
|
788 | return r + ecb_ld32 (x); |
|
|
789 | } |
|
|
790 | #endif |
|
|
791 | |
|
|
792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
793 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
794 | { |
|
|
795 | return ( (x * 0x0802U & 0x22110U) |
|
|
796 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
797 | } |
|
|
798 | |
|
|
799 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
800 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
801 | { |
|
|
802 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
803 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
804 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
805 | x = ( x >> 8 ) | ( x << 8); |
|
|
806 | |
|
|
807 | return x; |
|
|
808 | } |
|
|
809 | |
|
|
810 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
811 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
812 | { |
|
|
813 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
814 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
815 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
816 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
817 | x = ( x >> 16 ) | ( x << 16); |
|
|
818 | |
|
|
819 | return x; |
|
|
820 | } |
|
|
821 | |
|
|
822 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
823 | /* so for this version we are lazy */ |
|
|
824 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
825 | ecb_function_ int |
|
|
826 | ecb_popcount64 (uint64_t x) |
|
|
827 | { |
|
|
828 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
829 | } |
|
|
830 | |
|
|
831 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
832 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
833 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
834 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
835 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
836 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
837 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
838 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
839 | |
|
|
840 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
841 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
842 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
843 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
844 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
845 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
846 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
847 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
848 | |
|
|
849 | #if ECB_GCC_VERSION(4,3) |
|
|
850 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
851 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
852 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
853 | #else |
|
|
854 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
855 | ecb_function_ uint16_t |
|
|
856 | ecb_bswap16 (uint16_t x) |
|
|
857 | { |
|
|
858 | return ecb_rotl16 (x, 8); |
|
|
859 | } |
|
|
860 | |
|
|
861 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
862 | ecb_function_ uint32_t |
|
|
863 | ecb_bswap32 (uint32_t x) |
|
|
864 | { |
|
|
865 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
866 | } |
|
|
867 | |
|
|
868 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
869 | ecb_function_ uint64_t |
|
|
870 | ecb_bswap64 (uint64_t x) |
|
|
871 | { |
|
|
872 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
873 | } |
|
|
874 | #endif |
|
|
875 | |
|
|
876 | #if ECB_GCC_VERSION(4,5) |
|
|
877 | #define ecb_unreachable() __builtin_unreachable () |
|
|
878 | #else |
|
|
879 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
880 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
881 | ecb_inline void ecb_unreachable (void) { } |
|
|
882 | #endif |
|
|
883 | |
|
|
884 | /* try to tell the compiler that some condition is definitely true */ |
|
|
885 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
886 | |
|
|
887 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
888 | ecb_inline unsigned char |
|
|
889 | ecb_byteorder_helper (void) |
|
|
890 | { |
|
|
891 | const uint32_t u = 0x11223344; |
|
|
892 | return *(unsigned char *)&u; |
|
|
893 | } |
|
|
894 | |
|
|
895 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
896 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
897 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
898 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
899 | |
|
|
900 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
901 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
902 | #else |
|
|
903 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | #if __cplusplus |
|
|
907 | template<typename T> |
|
|
908 | static inline T ecb_div_rd (T val, T div) |
|
|
909 | { |
|
|
910 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
911 | } |
|
|
912 | template<typename T> |
|
|
913 | static inline T ecb_div_ru (T val, T div) |
|
|
914 | { |
|
|
915 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
916 | } |
|
|
917 | #else |
|
|
918 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
919 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
920 | #endif |
|
|
921 | |
|
|
922 | #if ecb_cplusplus_does_not_suck |
|
|
923 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
924 | template<typename T, int N> |
|
|
925 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
926 | { |
|
|
927 | return N; |
|
|
928 | } |
|
|
929 | #else |
|
|
930 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
931 | #endif |
|
|
932 | |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | /* ECB.H END */ |
|
|
936 | |
|
|
937 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
938 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
939 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
940 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
941 | * libev, in which cases the memory fences become nops. |
|
|
942 | * alternatively, you can remove this #error and link against libpthread, |
|
|
943 | * which will then provide the memory fences. |
|
|
944 | */ |
|
|
945 | # error "memory fences not defined for your architecture, please report" |
|
|
946 | #endif |
|
|
947 | |
|
|
948 | #ifndef ECB_MEMORY_FENCE |
|
|
949 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
950 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
951 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
952 | #endif |
|
|
953 | |
|
|
954 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
955 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
956 | #define noinline ecb_noinline |
|
|
957 | |
312 | #define inline_size static inline |
958 | #define inline_size ecb_inline |
313 | |
959 | |
314 | #if EV_MINIMAL |
960 | #if EV_FEATURE_CODE |
|
|
961 | # define inline_speed ecb_inline |
|
|
962 | #else |
315 | # define inline_speed static noinline |
963 | # define inline_speed static noinline |
|
|
964 | #endif |
|
|
965 | |
|
|
966 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
967 | |
|
|
968 | #if EV_MINPRI == EV_MAXPRI |
|
|
969 | # define ABSPRI(w) (((W)w), 0) |
316 | #else |
970 | #else |
317 | # define inline_speed static inline |
|
|
318 | #endif |
|
|
319 | |
|
|
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
971 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
972 | #endif |
322 | |
973 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
974 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
975 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
976 | |
326 | typedef ev_watcher *W; |
977 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
978 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
979 | typedef ev_watcher_time *WT; |
329 | |
980 | |
|
|
981 | #define ev_active(w) ((W)(w))->active |
330 | #define ev_at(w) ((WT)(w))->at |
982 | #define ev_at(w) ((WT)(w))->at |
331 | |
983 | |
|
|
984 | #if EV_USE_REALTIME |
|
|
985 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
986 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
987 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
988 | #endif |
|
|
989 | |
332 | #if EV_USE_MONOTONIC |
990 | #if EV_USE_MONOTONIC |
333 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
334 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
335 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
991 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
992 | #endif |
|
|
993 | |
|
|
994 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
995 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
996 | #endif |
|
|
997 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
998 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
999 | #endif |
|
|
1000 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1001 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
336 | #endif |
1002 | #endif |
337 | |
1003 | |
338 | #ifdef _WIN32 |
1004 | #ifdef _WIN32 |
339 | # include "ev_win32.c" |
1005 | # include "ev_win32.c" |
340 | #endif |
1006 | #endif |
341 | |
1007 | |
342 | /*****************************************************************************/ |
1008 | /*****************************************************************************/ |
343 | |
1009 | |
|
|
1010 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1011 | |
|
|
1012 | #if EV_USE_FLOOR |
|
|
1013 | # include <math.h> |
|
|
1014 | # define ev_floor(v) floor (v) |
|
|
1015 | #else |
|
|
1016 | |
|
|
1017 | #include <float.h> |
|
|
1018 | |
|
|
1019 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1020 | static ev_tstamp noinline |
|
|
1021 | ev_floor (ev_tstamp v) |
|
|
1022 | { |
|
|
1023 | /* the choice of shift factor is not terribly important */ |
|
|
1024 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1025 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1026 | #else |
|
|
1027 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1028 | #endif |
|
|
1029 | |
|
|
1030 | /* argument too large for an unsigned long? */ |
|
|
1031 | if (expect_false (v >= shift)) |
|
|
1032 | { |
|
|
1033 | ev_tstamp f; |
|
|
1034 | |
|
|
1035 | if (v == v - 1.) |
|
|
1036 | return v; /* very large number */ |
|
|
1037 | |
|
|
1038 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1039 | return f + ev_floor (v - f); |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | /* special treatment for negative args? */ |
|
|
1043 | if (expect_false (v < 0.)) |
|
|
1044 | { |
|
|
1045 | ev_tstamp f = -ev_floor (-v); |
|
|
1046 | |
|
|
1047 | return f - (f == v ? 0 : 1); |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | /* fits into an unsigned long */ |
|
|
1051 | return (unsigned long)v; |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | #endif |
|
|
1055 | |
|
|
1056 | /*****************************************************************************/ |
|
|
1057 | |
|
|
1058 | #ifdef __linux |
|
|
1059 | # include <sys/utsname.h> |
|
|
1060 | #endif |
|
|
1061 | |
|
|
1062 | static unsigned int noinline ecb_cold |
|
|
1063 | ev_linux_version (void) |
|
|
1064 | { |
|
|
1065 | #ifdef __linux |
|
|
1066 | unsigned int v = 0; |
|
|
1067 | struct utsname buf; |
|
|
1068 | int i; |
|
|
1069 | char *p = buf.release; |
|
|
1070 | |
|
|
1071 | if (uname (&buf)) |
|
|
1072 | return 0; |
|
|
1073 | |
|
|
1074 | for (i = 3+1; --i; ) |
|
|
1075 | { |
|
|
1076 | unsigned int c = 0; |
|
|
1077 | |
|
|
1078 | for (;;) |
|
|
1079 | { |
|
|
1080 | if (*p >= '0' && *p <= '9') |
|
|
1081 | c = c * 10 + *p++ - '0'; |
|
|
1082 | else |
|
|
1083 | { |
|
|
1084 | p += *p == '.'; |
|
|
1085 | break; |
|
|
1086 | } |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | v = (v << 8) | c; |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | return v; |
|
|
1093 | #else |
|
|
1094 | return 0; |
|
|
1095 | #endif |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | /*****************************************************************************/ |
|
|
1099 | |
|
|
1100 | #if EV_AVOID_STDIO |
|
|
1101 | static void noinline ecb_cold |
|
|
1102 | ev_printerr (const char *msg) |
|
|
1103 | { |
|
|
1104 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1105 | } |
|
|
1106 | #endif |
|
|
1107 | |
344 | static void (*syserr_cb)(const char *msg); |
1108 | static void (*syserr_cb)(const char *msg); |
345 | |
1109 | |
346 | void |
1110 | void ecb_cold |
347 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1111 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
348 | { |
1112 | { |
349 | syserr_cb = cb; |
1113 | syserr_cb = cb; |
350 | } |
1114 | } |
351 | |
1115 | |
352 | static void noinline |
1116 | static void noinline ecb_cold |
353 | syserr (const char *msg) |
1117 | ev_syserr (const char *msg) |
354 | { |
1118 | { |
355 | if (!msg) |
1119 | if (!msg) |
356 | msg = "(libev) system error"; |
1120 | msg = "(libev) system error"; |
357 | |
1121 | |
358 | if (syserr_cb) |
1122 | if (syserr_cb) |
359 | syserr_cb (msg); |
1123 | syserr_cb (msg); |
360 | else |
1124 | else |
361 | { |
1125 | { |
|
|
1126 | #if EV_AVOID_STDIO |
|
|
1127 | ev_printerr (msg); |
|
|
1128 | ev_printerr (": "); |
|
|
1129 | ev_printerr (strerror (errno)); |
|
|
1130 | ev_printerr ("\n"); |
|
|
1131 | #else |
362 | perror (msg); |
1132 | perror (msg); |
|
|
1133 | #endif |
363 | abort (); |
1134 | abort (); |
364 | } |
1135 | } |
365 | } |
1136 | } |
366 | |
1137 | |
367 | static void * |
1138 | static void * |
368 | ev_realloc_emul (void *ptr, long size) |
1139 | ev_realloc_emul (void *ptr, long size) |
369 | { |
1140 | { |
|
|
1141 | #if __GLIBC__ |
|
|
1142 | return realloc (ptr, size); |
|
|
1143 | #else |
370 | /* some systems, notably openbsd and darwin, fail to properly |
1144 | /* some systems, notably openbsd and darwin, fail to properly |
371 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1145 | * implement realloc (x, 0) (as required by both ansi c-89 and |
372 | * the single unix specification, so work around them here. |
1146 | * the single unix specification, so work around them here. |
373 | */ |
1147 | */ |
374 | |
1148 | |
375 | if (size) |
1149 | if (size) |
376 | return realloc (ptr, size); |
1150 | return realloc (ptr, size); |
377 | |
1151 | |
378 | free (ptr); |
1152 | free (ptr); |
379 | return 0; |
1153 | return 0; |
|
|
1154 | #endif |
380 | } |
1155 | } |
381 | |
1156 | |
382 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1157 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
383 | |
1158 | |
384 | void |
1159 | void ecb_cold |
385 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1160 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
386 | { |
1161 | { |
387 | alloc = cb; |
1162 | alloc = cb; |
388 | } |
1163 | } |
389 | |
1164 | |
… | |
… | |
392 | { |
1167 | { |
393 | ptr = alloc (ptr, size); |
1168 | ptr = alloc (ptr, size); |
394 | |
1169 | |
395 | if (!ptr && size) |
1170 | if (!ptr && size) |
396 | { |
1171 | { |
|
|
1172 | #if EV_AVOID_STDIO |
|
|
1173 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1174 | #else |
397 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1175 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1176 | #endif |
398 | abort (); |
1177 | abort (); |
399 | } |
1178 | } |
400 | |
1179 | |
401 | return ptr; |
1180 | return ptr; |
402 | } |
1181 | } |
… | |
… | |
404 | #define ev_malloc(size) ev_realloc (0, (size)) |
1183 | #define ev_malloc(size) ev_realloc (0, (size)) |
405 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1184 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
406 | |
1185 | |
407 | /*****************************************************************************/ |
1186 | /*****************************************************************************/ |
408 | |
1187 | |
|
|
1188 | /* set in reify when reification needed */ |
|
|
1189 | #define EV_ANFD_REIFY 1 |
|
|
1190 | |
|
|
1191 | /* file descriptor info structure */ |
409 | typedef struct |
1192 | typedef struct |
410 | { |
1193 | { |
411 | WL head; |
1194 | WL head; |
412 | unsigned char events; |
1195 | unsigned char events; /* the events watched for */ |
|
|
1196 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1197 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
413 | unsigned char reify; |
1198 | unsigned char unused; |
|
|
1199 | #if EV_USE_EPOLL |
|
|
1200 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1201 | #endif |
414 | #if EV_SELECT_IS_WINSOCKET |
1202 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
415 | SOCKET handle; |
1203 | SOCKET handle; |
416 | #endif |
1204 | #endif |
|
|
1205 | #if EV_USE_IOCP |
|
|
1206 | OVERLAPPED or, ow; |
|
|
1207 | #endif |
417 | } ANFD; |
1208 | } ANFD; |
418 | |
1209 | |
|
|
1210 | /* stores the pending event set for a given watcher */ |
419 | typedef struct |
1211 | typedef struct |
420 | { |
1212 | { |
421 | W w; |
1213 | W w; |
422 | int events; |
1214 | int events; /* the pending event set for the given watcher */ |
423 | } ANPENDING; |
1215 | } ANPENDING; |
424 | |
1216 | |
425 | #if EV_USE_INOTIFY |
1217 | #if EV_USE_INOTIFY |
|
|
1218 | /* hash table entry per inotify-id */ |
426 | typedef struct |
1219 | typedef struct |
427 | { |
1220 | { |
428 | WL head; |
1221 | WL head; |
429 | } ANFS; |
1222 | } ANFS; |
|
|
1223 | #endif |
|
|
1224 | |
|
|
1225 | /* Heap Entry */ |
|
|
1226 | #if EV_HEAP_CACHE_AT |
|
|
1227 | /* a heap element */ |
|
|
1228 | typedef struct { |
|
|
1229 | ev_tstamp at; |
|
|
1230 | WT w; |
|
|
1231 | } ANHE; |
|
|
1232 | |
|
|
1233 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
1234 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
1235 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
1236 | #else |
|
|
1237 | /* a heap element */ |
|
|
1238 | typedef WT ANHE; |
|
|
1239 | |
|
|
1240 | #define ANHE_w(he) (he) |
|
|
1241 | #define ANHE_at(he) (he)->at |
|
|
1242 | #define ANHE_at_cache(he) |
430 | #endif |
1243 | #endif |
431 | |
1244 | |
432 | #if EV_MULTIPLICITY |
1245 | #if EV_MULTIPLICITY |
433 | |
1246 | |
434 | struct ev_loop |
1247 | struct ev_loop |
… | |
… | |
440 | #undef VAR |
1253 | #undef VAR |
441 | }; |
1254 | }; |
442 | #include "ev_wrap.h" |
1255 | #include "ev_wrap.h" |
443 | |
1256 | |
444 | static struct ev_loop default_loop_struct; |
1257 | static struct ev_loop default_loop_struct; |
445 | struct ev_loop *ev_default_loop_ptr; |
1258 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
446 | |
1259 | |
447 | #else |
1260 | #else |
448 | |
1261 | |
449 | ev_tstamp ev_rt_now; |
1262 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
450 | #define VAR(name,decl) static decl; |
1263 | #define VAR(name,decl) static decl; |
451 | #include "ev_vars.h" |
1264 | #include "ev_vars.h" |
452 | #undef VAR |
1265 | #undef VAR |
453 | |
1266 | |
454 | static int ev_default_loop_ptr; |
1267 | static int ev_default_loop_ptr; |
455 | |
1268 | |
456 | #endif |
1269 | #endif |
457 | |
1270 | |
|
|
1271 | #if EV_FEATURE_API |
|
|
1272 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1273 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1274 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1275 | #else |
|
|
1276 | # define EV_RELEASE_CB (void)0 |
|
|
1277 | # define EV_ACQUIRE_CB (void)0 |
|
|
1278 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1279 | #endif |
|
|
1280 | |
|
|
1281 | #define EVBREAK_RECURSE 0x80 |
|
|
1282 | |
458 | /*****************************************************************************/ |
1283 | /*****************************************************************************/ |
459 | |
1284 | |
|
|
1285 | #ifndef EV_HAVE_EV_TIME |
460 | ev_tstamp |
1286 | ev_tstamp |
461 | ev_time (void) |
1287 | ev_time (void) |
462 | { |
1288 | { |
463 | #if EV_USE_REALTIME |
1289 | #if EV_USE_REALTIME |
|
|
1290 | if (expect_true (have_realtime)) |
|
|
1291 | { |
464 | struct timespec ts; |
1292 | struct timespec ts; |
465 | clock_gettime (CLOCK_REALTIME, &ts); |
1293 | clock_gettime (CLOCK_REALTIME, &ts); |
466 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1294 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
467 | #else |
1295 | } |
|
|
1296 | #endif |
|
|
1297 | |
468 | struct timeval tv; |
1298 | struct timeval tv; |
469 | gettimeofday (&tv, 0); |
1299 | gettimeofday (&tv, 0); |
470 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1300 | return tv.tv_sec + tv.tv_usec * 1e-6; |
471 | #endif |
|
|
472 | } |
1301 | } |
|
|
1302 | #endif |
473 | |
1303 | |
474 | ev_tstamp inline_size |
1304 | inline_size ev_tstamp |
475 | get_clock (void) |
1305 | get_clock (void) |
476 | { |
1306 | { |
477 | #if EV_USE_MONOTONIC |
1307 | #if EV_USE_MONOTONIC |
478 | if (expect_true (have_monotonic)) |
1308 | if (expect_true (have_monotonic)) |
479 | { |
1309 | { |
… | |
… | |
500 | if (delay > 0.) |
1330 | if (delay > 0.) |
501 | { |
1331 | { |
502 | #if EV_USE_NANOSLEEP |
1332 | #if EV_USE_NANOSLEEP |
503 | struct timespec ts; |
1333 | struct timespec ts; |
504 | |
1334 | |
505 | ts.tv_sec = (time_t)delay; |
1335 | EV_TS_SET (ts, delay); |
506 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
507 | |
|
|
508 | nanosleep (&ts, 0); |
1336 | nanosleep (&ts, 0); |
509 | #elif defined(_WIN32) |
1337 | #elif defined(_WIN32) |
510 | Sleep ((unsigned long)(delay * 1e3)); |
1338 | Sleep ((unsigned long)(delay * 1e3)); |
511 | #else |
1339 | #else |
512 | struct timeval tv; |
1340 | struct timeval tv; |
513 | |
1341 | |
514 | tv.tv_sec = (time_t)delay; |
1342 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
515 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
1343 | /* something not guaranteed by newer posix versions, but guaranteed */ |
516 | |
1344 | /* by older ones */ |
|
|
1345 | EV_TV_SET (tv, delay); |
517 | select (0, 0, 0, 0, &tv); |
1346 | select (0, 0, 0, 0, &tv); |
518 | #endif |
1347 | #endif |
519 | } |
1348 | } |
520 | } |
1349 | } |
521 | |
1350 | |
522 | /*****************************************************************************/ |
1351 | /*****************************************************************************/ |
523 | |
1352 | |
524 | int inline_size |
1353 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
1354 | |
|
|
1355 | /* find a suitable new size for the given array, */ |
|
|
1356 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1357 | inline_size int |
525 | array_nextsize (int elem, int cur, int cnt) |
1358 | array_nextsize (int elem, int cur, int cnt) |
526 | { |
1359 | { |
527 | int ncur = cur + 1; |
1360 | int ncur = cur + 1; |
528 | |
1361 | |
529 | do |
1362 | do |
530 | ncur <<= 1; |
1363 | ncur <<= 1; |
531 | while (cnt > ncur); |
1364 | while (cnt > ncur); |
532 | |
1365 | |
533 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
1366 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
534 | if (elem * ncur > 4096) |
1367 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
535 | { |
1368 | { |
536 | ncur *= elem; |
1369 | ncur *= elem; |
537 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
1370 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
538 | ncur = ncur - sizeof (void *) * 4; |
1371 | ncur = ncur - sizeof (void *) * 4; |
539 | ncur /= elem; |
1372 | ncur /= elem; |
540 | } |
1373 | } |
541 | |
1374 | |
542 | return ncur; |
1375 | return ncur; |
543 | } |
1376 | } |
544 | |
1377 | |
545 | static noinline void * |
1378 | static void * noinline ecb_cold |
546 | array_realloc (int elem, void *base, int *cur, int cnt) |
1379 | array_realloc (int elem, void *base, int *cur, int cnt) |
547 | { |
1380 | { |
548 | *cur = array_nextsize (elem, *cur, cnt); |
1381 | *cur = array_nextsize (elem, *cur, cnt); |
549 | return ev_realloc (base, elem * *cur); |
1382 | return ev_realloc (base, elem * *cur); |
550 | } |
1383 | } |
|
|
1384 | |
|
|
1385 | #define array_init_zero(base,count) \ |
|
|
1386 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
551 | |
1387 | |
552 | #define array_needsize(type,base,cur,cnt,init) \ |
1388 | #define array_needsize(type,base,cur,cnt,init) \ |
553 | if (expect_false ((cnt) > (cur))) \ |
1389 | if (expect_false ((cnt) > (cur))) \ |
554 | { \ |
1390 | { \ |
555 | int ocur_ = (cur); \ |
1391 | int ecb_unused ocur_ = (cur); \ |
556 | (base) = (type *)array_realloc \ |
1392 | (base) = (type *)array_realloc \ |
557 | (sizeof (type), (base), &(cur), (cnt)); \ |
1393 | (sizeof (type), (base), &(cur), (cnt)); \ |
558 | init ((base) + (ocur_), (cur) - ocur_); \ |
1394 | init ((base) + (ocur_), (cur) - ocur_); \ |
559 | } |
1395 | } |
560 | |
1396 | |
… | |
… | |
567 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1403 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
568 | } |
1404 | } |
569 | #endif |
1405 | #endif |
570 | |
1406 | |
571 | #define array_free(stem, idx) \ |
1407 | #define array_free(stem, idx) \ |
572 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1408 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
573 | |
1409 | |
574 | /*****************************************************************************/ |
1410 | /*****************************************************************************/ |
|
|
1411 | |
|
|
1412 | /* dummy callback for pending events */ |
|
|
1413 | static void noinline |
|
|
1414 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1415 | { |
|
|
1416 | } |
575 | |
1417 | |
576 | void noinline |
1418 | void noinline |
577 | ev_feed_event (EV_P_ void *w, int revents) |
1419 | ev_feed_event (EV_P_ void *w, int revents) |
578 | { |
1420 | { |
579 | W w_ = (W)w; |
1421 | W w_ = (W)w; |
… | |
… | |
588 | pendings [pri][w_->pending - 1].w = w_; |
1430 | pendings [pri][w_->pending - 1].w = w_; |
589 | pendings [pri][w_->pending - 1].events = revents; |
1431 | pendings [pri][w_->pending - 1].events = revents; |
590 | } |
1432 | } |
591 | } |
1433 | } |
592 | |
1434 | |
593 | void inline_speed |
1435 | inline_speed void |
|
|
1436 | feed_reverse (EV_P_ W w) |
|
|
1437 | { |
|
|
1438 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1439 | rfeeds [rfeedcnt++] = w; |
|
|
1440 | } |
|
|
1441 | |
|
|
1442 | inline_size void |
|
|
1443 | feed_reverse_done (EV_P_ int revents) |
|
|
1444 | { |
|
|
1445 | do |
|
|
1446 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1447 | while (rfeedcnt); |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | inline_speed void |
594 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1451 | queue_events (EV_P_ W *events, int eventcnt, int type) |
595 | { |
1452 | { |
596 | int i; |
1453 | int i; |
597 | |
1454 | |
598 | for (i = 0; i < eventcnt; ++i) |
1455 | for (i = 0; i < eventcnt; ++i) |
599 | ev_feed_event (EV_A_ events [i], type); |
1456 | ev_feed_event (EV_A_ events [i], type); |
600 | } |
1457 | } |
601 | |
1458 | |
602 | /*****************************************************************************/ |
1459 | /*****************************************************************************/ |
603 | |
1460 | |
604 | void inline_size |
1461 | inline_speed void |
605 | anfds_init (ANFD *base, int count) |
|
|
606 | { |
|
|
607 | while (count--) |
|
|
608 | { |
|
|
609 | base->head = 0; |
|
|
610 | base->events = EV_NONE; |
|
|
611 | base->reify = 0; |
|
|
612 | |
|
|
613 | ++base; |
|
|
614 | } |
|
|
615 | } |
|
|
616 | |
|
|
617 | void inline_speed |
|
|
618 | fd_event (EV_P_ int fd, int revents) |
1462 | fd_event_nocheck (EV_P_ int fd, int revents) |
619 | { |
1463 | { |
620 | ANFD *anfd = anfds + fd; |
1464 | ANFD *anfd = anfds + fd; |
621 | ev_io *w; |
1465 | ev_io *w; |
622 | |
1466 | |
623 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1467 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
627 | if (ev) |
1471 | if (ev) |
628 | ev_feed_event (EV_A_ (W)w, ev); |
1472 | ev_feed_event (EV_A_ (W)w, ev); |
629 | } |
1473 | } |
630 | } |
1474 | } |
631 | |
1475 | |
|
|
1476 | /* do not submit kernel events for fds that have reify set */ |
|
|
1477 | /* because that means they changed while we were polling for new events */ |
|
|
1478 | inline_speed void |
|
|
1479 | fd_event (EV_P_ int fd, int revents) |
|
|
1480 | { |
|
|
1481 | ANFD *anfd = anfds + fd; |
|
|
1482 | |
|
|
1483 | if (expect_true (!anfd->reify)) |
|
|
1484 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1485 | } |
|
|
1486 | |
632 | void |
1487 | void |
633 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
634 | { |
1489 | { |
635 | if (fd >= 0 && fd < anfdmax) |
1490 | if (fd >= 0 && fd < anfdmax) |
636 | fd_event (EV_A_ fd, revents); |
1491 | fd_event_nocheck (EV_A_ fd, revents); |
637 | } |
1492 | } |
638 | |
1493 | |
639 | void inline_size |
1494 | /* make sure the external fd watch events are in-sync */ |
|
|
1495 | /* with the kernel/libev internal state */ |
|
|
1496 | inline_size void |
640 | fd_reify (EV_P) |
1497 | fd_reify (EV_P) |
641 | { |
1498 | { |
642 | int i; |
1499 | int i; |
|
|
1500 | |
|
|
1501 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1502 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1503 | { |
|
|
1504 | int fd = fdchanges [i]; |
|
|
1505 | ANFD *anfd = anfds + fd; |
|
|
1506 | |
|
|
1507 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1508 | { |
|
|
1509 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1510 | |
|
|
1511 | if (handle != anfd->handle) |
|
|
1512 | { |
|
|
1513 | unsigned long arg; |
|
|
1514 | |
|
|
1515 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1516 | |
|
|
1517 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1518 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1519 | anfd->events = 0; |
|
|
1520 | anfd->handle = handle; |
|
|
1521 | } |
|
|
1522 | } |
|
|
1523 | } |
|
|
1524 | #endif |
643 | |
1525 | |
644 | for (i = 0; i < fdchangecnt; ++i) |
1526 | for (i = 0; i < fdchangecnt; ++i) |
645 | { |
1527 | { |
646 | int fd = fdchanges [i]; |
1528 | int fd = fdchanges [i]; |
647 | ANFD *anfd = anfds + fd; |
1529 | ANFD *anfd = anfds + fd; |
648 | ev_io *w; |
1530 | ev_io *w; |
649 | |
1531 | |
650 | unsigned char events = 0; |
1532 | unsigned char o_events = anfd->events; |
|
|
1533 | unsigned char o_reify = anfd->reify; |
651 | |
1534 | |
652 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1535 | anfd->reify = 0; |
653 | events |= (unsigned char)w->events; |
|
|
654 | |
1536 | |
655 | #if EV_SELECT_IS_WINSOCKET |
1537 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
656 | if (events) |
|
|
657 | { |
1538 | { |
658 | unsigned long argp; |
1539 | anfd->events = 0; |
659 | #ifdef EV_FD_TO_WIN32_HANDLE |
1540 | |
660 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1541 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
661 | #else |
1542 | anfd->events |= (unsigned char)w->events; |
662 | anfd->handle = _get_osfhandle (fd); |
1543 | |
663 | #endif |
1544 | if (o_events != anfd->events) |
664 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1545 | o_reify = EV__IOFDSET; /* actually |= */ |
665 | } |
1546 | } |
666 | #endif |
|
|
667 | |
1547 | |
668 | { |
1548 | if (o_reify & EV__IOFDSET) |
669 | unsigned char o_events = anfd->events; |
|
|
670 | unsigned char o_reify = anfd->reify; |
|
|
671 | |
|
|
672 | anfd->reify = 0; |
|
|
673 | anfd->events = events; |
|
|
674 | |
|
|
675 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
676 | backend_modify (EV_A_ fd, o_events, events); |
1549 | backend_modify (EV_A_ fd, o_events, anfd->events); |
677 | } |
|
|
678 | } |
1550 | } |
679 | |
1551 | |
680 | fdchangecnt = 0; |
1552 | fdchangecnt = 0; |
681 | } |
1553 | } |
682 | |
1554 | |
683 | void inline_size |
1555 | /* something about the given fd changed */ |
|
|
1556 | inline_size void |
684 | fd_change (EV_P_ int fd, int flags) |
1557 | fd_change (EV_P_ int fd, int flags) |
685 | { |
1558 | { |
686 | unsigned char reify = anfds [fd].reify; |
1559 | unsigned char reify = anfds [fd].reify; |
687 | anfds [fd].reify |= flags; |
1560 | anfds [fd].reify |= flags; |
688 | |
1561 | |
… | |
… | |
692 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1565 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
693 | fdchanges [fdchangecnt - 1] = fd; |
1566 | fdchanges [fdchangecnt - 1] = fd; |
694 | } |
1567 | } |
695 | } |
1568 | } |
696 | |
1569 | |
697 | void inline_speed |
1570 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1571 | inline_speed void ecb_cold |
698 | fd_kill (EV_P_ int fd) |
1572 | fd_kill (EV_P_ int fd) |
699 | { |
1573 | { |
700 | ev_io *w; |
1574 | ev_io *w; |
701 | |
1575 | |
702 | while ((w = (ev_io *)anfds [fd].head)) |
1576 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
704 | ev_io_stop (EV_A_ w); |
1578 | ev_io_stop (EV_A_ w); |
705 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1579 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
706 | } |
1580 | } |
707 | } |
1581 | } |
708 | |
1582 | |
709 | int inline_size |
1583 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1584 | inline_size int ecb_cold |
710 | fd_valid (int fd) |
1585 | fd_valid (int fd) |
711 | { |
1586 | { |
712 | #ifdef _WIN32 |
1587 | #ifdef _WIN32 |
713 | return _get_osfhandle (fd) != -1; |
1588 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
714 | #else |
1589 | #else |
715 | return fcntl (fd, F_GETFD) != -1; |
1590 | return fcntl (fd, F_GETFD) != -1; |
716 | #endif |
1591 | #endif |
717 | } |
1592 | } |
718 | |
1593 | |
719 | /* called on EBADF to verify fds */ |
1594 | /* called on EBADF to verify fds */ |
720 | static void noinline |
1595 | static void noinline ecb_cold |
721 | fd_ebadf (EV_P) |
1596 | fd_ebadf (EV_P) |
722 | { |
1597 | { |
723 | int fd; |
1598 | int fd; |
724 | |
1599 | |
725 | for (fd = 0; fd < anfdmax; ++fd) |
1600 | for (fd = 0; fd < anfdmax; ++fd) |
726 | if (anfds [fd].events) |
1601 | if (anfds [fd].events) |
727 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1602 | if (!fd_valid (fd) && errno == EBADF) |
728 | fd_kill (EV_A_ fd); |
1603 | fd_kill (EV_A_ fd); |
729 | } |
1604 | } |
730 | |
1605 | |
731 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1606 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
732 | static void noinline |
1607 | static void noinline ecb_cold |
733 | fd_enomem (EV_P) |
1608 | fd_enomem (EV_P) |
734 | { |
1609 | { |
735 | int fd; |
1610 | int fd; |
736 | |
1611 | |
737 | for (fd = anfdmax; fd--; ) |
1612 | for (fd = anfdmax; fd--; ) |
738 | if (anfds [fd].events) |
1613 | if (anfds [fd].events) |
739 | { |
1614 | { |
740 | fd_kill (EV_A_ fd); |
1615 | fd_kill (EV_A_ fd); |
741 | return; |
1616 | break; |
742 | } |
1617 | } |
743 | } |
1618 | } |
744 | |
1619 | |
745 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1620 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
746 | static void noinline |
1621 | static void noinline |
… | |
… | |
750 | |
1625 | |
751 | for (fd = 0; fd < anfdmax; ++fd) |
1626 | for (fd = 0; fd < anfdmax; ++fd) |
752 | if (anfds [fd].events) |
1627 | if (anfds [fd].events) |
753 | { |
1628 | { |
754 | anfds [fd].events = 0; |
1629 | anfds [fd].events = 0; |
|
|
1630 | anfds [fd].emask = 0; |
755 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1631 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
756 | } |
1632 | } |
757 | } |
1633 | } |
758 | |
1634 | |
759 | /*****************************************************************************/ |
1635 | /* used to prepare libev internal fd's */ |
760 | |
1636 | /* this is not fork-safe */ |
761 | /* towards the root */ |
1637 | inline_speed void |
762 | void inline_speed |
|
|
763 | upheap (WT *heap, int k) |
|
|
764 | { |
|
|
765 | WT w = heap [k]; |
|
|
766 | |
|
|
767 | for (;;) |
|
|
768 | { |
|
|
769 | int p = k >> 1; |
|
|
770 | |
|
|
771 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
772 | if (!p || heap [p]->at <= w->at) |
|
|
773 | break; |
|
|
774 | |
|
|
775 | heap [k] = heap [p]; |
|
|
776 | ((W)heap [k])->active = k; |
|
|
777 | k = p; |
|
|
778 | } |
|
|
779 | |
|
|
780 | heap [k] = w; |
|
|
781 | ((W)heap [k])->active = k; |
|
|
782 | } |
|
|
783 | |
|
|
784 | /* away from the root */ |
|
|
785 | void inline_speed |
|
|
786 | downheap (WT *heap, int N, int k) |
|
|
787 | { |
|
|
788 | WT w = heap [k]; |
|
|
789 | |
|
|
790 | for (;;) |
|
|
791 | { |
|
|
792 | int c = k << 1; |
|
|
793 | |
|
|
794 | if (c > N) |
|
|
795 | break; |
|
|
796 | |
|
|
797 | c += c < N && heap [c]->at > heap [c + 1]->at |
|
|
798 | ? 1 : 0; |
|
|
799 | |
|
|
800 | if (w->at <= heap [c]->at) |
|
|
801 | break; |
|
|
802 | |
|
|
803 | heap [k] = heap [c]; |
|
|
804 | ((W)heap [k])->active = k; |
|
|
805 | |
|
|
806 | k = c; |
|
|
807 | } |
|
|
808 | |
|
|
809 | heap [k] = w; |
|
|
810 | ((W)heap [k])->active = k; |
|
|
811 | } |
|
|
812 | |
|
|
813 | void inline_size |
|
|
814 | adjustheap (WT *heap, int N, int k) |
|
|
815 | { |
|
|
816 | upheap (heap, k); |
|
|
817 | downheap (heap, N, k); |
|
|
818 | } |
|
|
819 | |
|
|
820 | /*****************************************************************************/ |
|
|
821 | |
|
|
822 | typedef struct |
|
|
823 | { |
|
|
824 | WL head; |
|
|
825 | EV_ATOMIC_T gotsig; |
|
|
826 | } ANSIG; |
|
|
827 | |
|
|
828 | static ANSIG *signals; |
|
|
829 | static int signalmax; |
|
|
830 | |
|
|
831 | static EV_ATOMIC_T gotsig; |
|
|
832 | |
|
|
833 | void inline_size |
|
|
834 | signals_init (ANSIG *base, int count) |
|
|
835 | { |
|
|
836 | while (count--) |
|
|
837 | { |
|
|
838 | base->head = 0; |
|
|
839 | base->gotsig = 0; |
|
|
840 | |
|
|
841 | ++base; |
|
|
842 | } |
|
|
843 | } |
|
|
844 | |
|
|
845 | /*****************************************************************************/ |
|
|
846 | |
|
|
847 | void inline_speed |
|
|
848 | fd_intern (int fd) |
1638 | fd_intern (int fd) |
849 | { |
1639 | { |
850 | #ifdef _WIN32 |
1640 | #ifdef _WIN32 |
851 | int arg = 1; |
1641 | unsigned long arg = 1; |
852 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1642 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
853 | #else |
1643 | #else |
854 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1644 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
855 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1645 | fcntl (fd, F_SETFL, O_NONBLOCK); |
856 | #endif |
1646 | #endif |
857 | } |
1647 | } |
858 | |
1648 | |
|
|
1649 | /*****************************************************************************/ |
|
|
1650 | |
|
|
1651 | /* |
|
|
1652 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1653 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1654 | * the branching factor of the d-tree. |
|
|
1655 | */ |
|
|
1656 | |
|
|
1657 | /* |
|
|
1658 | * at the moment we allow libev the luxury of two heaps, |
|
|
1659 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1660 | * which is more cache-efficient. |
|
|
1661 | * the difference is about 5% with 50000+ watchers. |
|
|
1662 | */ |
|
|
1663 | #if EV_USE_4HEAP |
|
|
1664 | |
|
|
1665 | #define DHEAP 4 |
|
|
1666 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1667 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1668 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1669 | |
|
|
1670 | /* away from the root */ |
|
|
1671 | inline_speed void |
|
|
1672 | downheap (ANHE *heap, int N, int k) |
|
|
1673 | { |
|
|
1674 | ANHE he = heap [k]; |
|
|
1675 | ANHE *E = heap + N + HEAP0; |
|
|
1676 | |
|
|
1677 | for (;;) |
|
|
1678 | { |
|
|
1679 | ev_tstamp minat; |
|
|
1680 | ANHE *minpos; |
|
|
1681 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1682 | |
|
|
1683 | /* find minimum child */ |
|
|
1684 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1685 | { |
|
|
1686 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1687 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1688 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1689 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1690 | } |
|
|
1691 | else if (pos < E) |
|
|
1692 | { |
|
|
1693 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1694 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1695 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1696 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1697 | } |
|
|
1698 | else |
|
|
1699 | break; |
|
|
1700 | |
|
|
1701 | if (ANHE_at (he) <= minat) |
|
|
1702 | break; |
|
|
1703 | |
|
|
1704 | heap [k] = *minpos; |
|
|
1705 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1706 | |
|
|
1707 | k = minpos - heap; |
|
|
1708 | } |
|
|
1709 | |
|
|
1710 | heap [k] = he; |
|
|
1711 | ev_active (ANHE_w (he)) = k; |
|
|
1712 | } |
|
|
1713 | |
|
|
1714 | #else /* 4HEAP */ |
|
|
1715 | |
|
|
1716 | #define HEAP0 1 |
|
|
1717 | #define HPARENT(k) ((k) >> 1) |
|
|
1718 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1719 | |
|
|
1720 | /* away from the root */ |
|
|
1721 | inline_speed void |
|
|
1722 | downheap (ANHE *heap, int N, int k) |
|
|
1723 | { |
|
|
1724 | ANHE he = heap [k]; |
|
|
1725 | |
|
|
1726 | for (;;) |
|
|
1727 | { |
|
|
1728 | int c = k << 1; |
|
|
1729 | |
|
|
1730 | if (c >= N + HEAP0) |
|
|
1731 | break; |
|
|
1732 | |
|
|
1733 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1734 | ? 1 : 0; |
|
|
1735 | |
|
|
1736 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1737 | break; |
|
|
1738 | |
|
|
1739 | heap [k] = heap [c]; |
|
|
1740 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1741 | |
|
|
1742 | k = c; |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | heap [k] = he; |
|
|
1746 | ev_active (ANHE_w (he)) = k; |
|
|
1747 | } |
|
|
1748 | #endif |
|
|
1749 | |
|
|
1750 | /* towards the root */ |
|
|
1751 | inline_speed void |
|
|
1752 | upheap (ANHE *heap, int k) |
|
|
1753 | { |
|
|
1754 | ANHE he = heap [k]; |
|
|
1755 | |
|
|
1756 | for (;;) |
|
|
1757 | { |
|
|
1758 | int p = HPARENT (k); |
|
|
1759 | |
|
|
1760 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1761 | break; |
|
|
1762 | |
|
|
1763 | heap [k] = heap [p]; |
|
|
1764 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1765 | k = p; |
|
|
1766 | } |
|
|
1767 | |
|
|
1768 | heap [k] = he; |
|
|
1769 | ev_active (ANHE_w (he)) = k; |
|
|
1770 | } |
|
|
1771 | |
|
|
1772 | /* move an element suitably so it is in a correct place */ |
|
|
1773 | inline_size void |
|
|
1774 | adjustheap (ANHE *heap, int N, int k) |
|
|
1775 | { |
|
|
1776 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1777 | upheap (heap, k); |
|
|
1778 | else |
|
|
1779 | downheap (heap, N, k); |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1783 | inline_size void |
|
|
1784 | reheap (ANHE *heap, int N) |
|
|
1785 | { |
|
|
1786 | int i; |
|
|
1787 | |
|
|
1788 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1789 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1790 | for (i = 0; i < N; ++i) |
|
|
1791 | upheap (heap, i + HEAP0); |
|
|
1792 | } |
|
|
1793 | |
|
|
1794 | /*****************************************************************************/ |
|
|
1795 | |
|
|
1796 | /* associate signal watchers to a signal signal */ |
|
|
1797 | typedef struct |
|
|
1798 | { |
|
|
1799 | EV_ATOMIC_T pending; |
|
|
1800 | #if EV_MULTIPLICITY |
|
|
1801 | EV_P; |
|
|
1802 | #endif |
|
|
1803 | WL head; |
|
|
1804 | } ANSIG; |
|
|
1805 | |
|
|
1806 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1807 | |
|
|
1808 | /*****************************************************************************/ |
|
|
1809 | |
|
|
1810 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1811 | |
859 | static void noinline |
1812 | static void noinline ecb_cold |
860 | evpipe_init (EV_P) |
1813 | evpipe_init (EV_P) |
861 | { |
1814 | { |
862 | if (!ev_is_active (&pipeev)) |
1815 | if (!ev_is_active (&pipe_w)) |
863 | { |
1816 | { |
864 | #if EV_USE_EVENTFD |
1817 | # if EV_USE_EVENTFD |
|
|
1818 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1819 | if (evfd < 0 && errno == EINVAL) |
865 | if ((evfd = eventfd (0, 0)) >= 0) |
1820 | evfd = eventfd (0, 0); |
|
|
1821 | |
|
|
1822 | if (evfd >= 0) |
866 | { |
1823 | { |
867 | evpipe [0] = -1; |
1824 | evpipe [0] = -1; |
868 | fd_intern (evfd); |
1825 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
869 | ev_io_set (&pipeev, evfd, EV_READ); |
1826 | ev_io_set (&pipe_w, evfd, EV_READ); |
870 | } |
1827 | } |
871 | else |
1828 | else |
872 | #endif |
1829 | # endif |
873 | { |
1830 | { |
874 | while (pipe (evpipe)) |
1831 | while (pipe (evpipe)) |
875 | syserr ("(libev) error creating signal/async pipe"); |
1832 | ev_syserr ("(libev) error creating signal/async pipe"); |
876 | |
1833 | |
877 | fd_intern (evpipe [0]); |
1834 | fd_intern (evpipe [0]); |
878 | fd_intern (evpipe [1]); |
1835 | fd_intern (evpipe [1]); |
879 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1836 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
880 | } |
1837 | } |
881 | |
1838 | |
882 | ev_io_start (EV_A_ &pipeev); |
1839 | ev_io_start (EV_A_ &pipe_w); |
883 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1840 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
884 | } |
1841 | } |
885 | } |
1842 | } |
886 | |
1843 | |
887 | void inline_size |
1844 | inline_speed void |
888 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1845 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
889 | { |
1846 | { |
890 | if (!*flag) |
1847 | if (expect_true (*flag)) |
|
|
1848 | return; |
|
|
1849 | |
|
|
1850 | *flag = 1; |
|
|
1851 | |
|
|
1852 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1853 | |
|
|
1854 | pipe_write_skipped = 1; |
|
|
1855 | |
|
|
1856 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1857 | |
|
|
1858 | if (pipe_write_wanted) |
891 | { |
1859 | { |
|
|
1860 | int old_errno; |
|
|
1861 | |
|
|
1862 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1863 | |
892 | int old_errno = errno; /* save errno because write might clobber it */ |
1864 | old_errno = errno; /* save errno because write will clobber it */ |
893 | |
|
|
894 | *flag = 1; |
|
|
895 | |
1865 | |
896 | #if EV_USE_EVENTFD |
1866 | #if EV_USE_EVENTFD |
897 | if (evfd >= 0) |
1867 | if (evfd >= 0) |
898 | { |
1868 | { |
899 | uint64_t counter = 1; |
1869 | uint64_t counter = 1; |
900 | write (evfd, &counter, sizeof (uint64_t)); |
1870 | write (evfd, &counter, sizeof (uint64_t)); |
901 | } |
1871 | } |
902 | else |
1872 | else |
903 | #endif |
1873 | #endif |
|
|
1874 | { |
|
|
1875 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1876 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1877 | /* so when you think this write should be a send instead, please find out */ |
|
|
1878 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1879 | /* tell me. thank you. */ |
|
|
1880 | /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ |
|
|
1881 | /* check the ev documentation on how to use this flag */ |
904 | write (evpipe [1], &old_errno, 1); |
1882 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1883 | } |
905 | |
1884 | |
906 | errno = old_errno; |
1885 | errno = old_errno; |
907 | } |
1886 | } |
908 | } |
1887 | } |
909 | |
1888 | |
|
|
1889 | /* called whenever the libev signal pipe */ |
|
|
1890 | /* got some events (signal, async) */ |
910 | static void |
1891 | static void |
911 | pipecb (EV_P_ ev_io *iow, int revents) |
1892 | pipecb (EV_P_ ev_io *iow, int revents) |
912 | { |
1893 | { |
|
|
1894 | int i; |
|
|
1895 | |
|
|
1896 | if (revents & EV_READ) |
|
|
1897 | { |
913 | #if EV_USE_EVENTFD |
1898 | #if EV_USE_EVENTFD |
914 | if (evfd >= 0) |
1899 | if (evfd >= 0) |
915 | { |
1900 | { |
916 | uint64_t counter = 1; |
1901 | uint64_t counter; |
917 | read (evfd, &counter, sizeof (uint64_t)); |
1902 | read (evfd, &counter, sizeof (uint64_t)); |
918 | } |
1903 | } |
919 | else |
1904 | else |
920 | #endif |
1905 | #endif |
921 | { |
1906 | { |
922 | char dummy; |
1907 | char dummy; |
|
|
1908 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
923 | read (evpipe [0], &dummy, 1); |
1909 | read (evpipe [0], &dummy, 1); |
|
|
1910 | } |
|
|
1911 | } |
|
|
1912 | |
|
|
1913 | pipe_write_skipped = 0; |
|
|
1914 | |
|
|
1915 | #if EV_SIGNAL_ENABLE |
|
|
1916 | if (sig_pending) |
924 | } |
1917 | { |
|
|
1918 | sig_pending = 0; |
925 | |
1919 | |
926 | if (gotsig && ev_is_default_loop (EV_A)) |
1920 | for (i = EV_NSIG - 1; i--; ) |
927 | { |
1921 | if (expect_false (signals [i].pending)) |
928 | int signum; |
|
|
929 | gotsig = 0; |
|
|
930 | |
|
|
931 | for (signum = signalmax; signum--; ) |
|
|
932 | if (signals [signum].gotsig) |
|
|
933 | ev_feed_signal_event (EV_A_ signum + 1); |
1922 | ev_feed_signal_event (EV_A_ i + 1); |
934 | } |
1923 | } |
|
|
1924 | #endif |
935 | |
1925 | |
936 | #if EV_ASYNC_ENABLE |
1926 | #if EV_ASYNC_ENABLE |
937 | if (gotasync) |
1927 | if (async_pending) |
938 | { |
1928 | { |
939 | int i; |
1929 | async_pending = 0; |
940 | gotasync = 0; |
|
|
941 | |
1930 | |
942 | for (i = asynccnt; i--; ) |
1931 | for (i = asynccnt; i--; ) |
943 | if (asyncs [i]->sent) |
1932 | if (asyncs [i]->sent) |
944 | { |
1933 | { |
945 | asyncs [i]->sent = 0; |
1934 | asyncs [i]->sent = 0; |
… | |
… | |
949 | #endif |
1938 | #endif |
950 | } |
1939 | } |
951 | |
1940 | |
952 | /*****************************************************************************/ |
1941 | /*****************************************************************************/ |
953 | |
1942 | |
|
|
1943 | void |
|
|
1944 | ev_feed_signal (int signum) |
|
|
1945 | { |
|
|
1946 | #if EV_MULTIPLICITY |
|
|
1947 | EV_P = signals [signum - 1].loop; |
|
|
1948 | |
|
|
1949 | if (!EV_A) |
|
|
1950 | return; |
|
|
1951 | #endif |
|
|
1952 | |
|
|
1953 | if (!ev_active (&pipe_w)) |
|
|
1954 | return; |
|
|
1955 | |
|
|
1956 | signals [signum - 1].pending = 1; |
|
|
1957 | evpipe_write (EV_A_ &sig_pending); |
|
|
1958 | } |
|
|
1959 | |
954 | static void |
1960 | static void |
955 | ev_sighandler (int signum) |
1961 | ev_sighandler (int signum) |
956 | { |
1962 | { |
957 | #if EV_MULTIPLICITY |
|
|
958 | struct ev_loop *loop = &default_loop_struct; |
|
|
959 | #endif |
|
|
960 | |
|
|
961 | #if _WIN32 |
1963 | #ifdef _WIN32 |
962 | signal (signum, ev_sighandler); |
1964 | signal (signum, ev_sighandler); |
963 | #endif |
1965 | #endif |
964 | |
1966 | |
965 | signals [signum - 1].gotsig = 1; |
1967 | ev_feed_signal (signum); |
966 | evpipe_write (EV_A_ &gotsig); |
|
|
967 | } |
1968 | } |
968 | |
1969 | |
969 | void noinline |
1970 | void noinline |
970 | ev_feed_signal_event (EV_P_ int signum) |
1971 | ev_feed_signal_event (EV_P_ int signum) |
971 | { |
1972 | { |
972 | WL w; |
1973 | WL w; |
973 | |
1974 | |
|
|
1975 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1976 | return; |
|
|
1977 | |
|
|
1978 | --signum; |
|
|
1979 | |
974 | #if EV_MULTIPLICITY |
1980 | #if EV_MULTIPLICITY |
975 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1981 | /* it is permissible to try to feed a signal to the wrong loop */ |
976 | #endif |
1982 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
977 | |
1983 | |
978 | --signum; |
1984 | if (expect_false (signals [signum].loop != EV_A)) |
979 | |
|
|
980 | if (signum < 0 || signum >= signalmax) |
|
|
981 | return; |
1985 | return; |
|
|
1986 | #endif |
982 | |
1987 | |
983 | signals [signum].gotsig = 0; |
1988 | signals [signum].pending = 0; |
984 | |
1989 | |
985 | for (w = signals [signum].head; w; w = w->next) |
1990 | for (w = signals [signum].head; w; w = w->next) |
986 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1991 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
987 | } |
1992 | } |
988 | |
1993 | |
|
|
1994 | #if EV_USE_SIGNALFD |
|
|
1995 | static void |
|
|
1996 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1997 | { |
|
|
1998 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1999 | |
|
|
2000 | for (;;) |
|
|
2001 | { |
|
|
2002 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2003 | |
|
|
2004 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2005 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2006 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2007 | |
|
|
2008 | if (res < (ssize_t)sizeof (si)) |
|
|
2009 | break; |
|
|
2010 | } |
|
|
2011 | } |
|
|
2012 | #endif |
|
|
2013 | |
|
|
2014 | #endif |
|
|
2015 | |
989 | /*****************************************************************************/ |
2016 | /*****************************************************************************/ |
990 | |
2017 | |
|
|
2018 | #if EV_CHILD_ENABLE |
991 | static WL childs [EV_PID_HASHSIZE]; |
2019 | static WL childs [EV_PID_HASHSIZE]; |
992 | |
|
|
993 | #ifndef _WIN32 |
|
|
994 | |
2020 | |
995 | static ev_signal childev; |
2021 | static ev_signal childev; |
996 | |
2022 | |
997 | #ifndef WIFCONTINUED |
2023 | #ifndef WIFCONTINUED |
998 | # define WIFCONTINUED(status) 0 |
2024 | # define WIFCONTINUED(status) 0 |
999 | #endif |
2025 | #endif |
1000 | |
2026 | |
1001 | void inline_speed |
2027 | /* handle a single child status event */ |
|
|
2028 | inline_speed void |
1002 | child_reap (EV_P_ int chain, int pid, int status) |
2029 | child_reap (EV_P_ int chain, int pid, int status) |
1003 | { |
2030 | { |
1004 | ev_child *w; |
2031 | ev_child *w; |
1005 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2032 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1006 | |
2033 | |
1007 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2034 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1008 | { |
2035 | { |
1009 | if ((w->pid == pid || !w->pid) |
2036 | if ((w->pid == pid || !w->pid) |
1010 | && (!traced || (w->flags & 1))) |
2037 | && (!traced || (w->flags & 1))) |
1011 | { |
2038 | { |
1012 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2039 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1019 | |
2046 | |
1020 | #ifndef WCONTINUED |
2047 | #ifndef WCONTINUED |
1021 | # define WCONTINUED 0 |
2048 | # define WCONTINUED 0 |
1022 | #endif |
2049 | #endif |
1023 | |
2050 | |
|
|
2051 | /* called on sigchld etc., calls waitpid */ |
1024 | static void |
2052 | static void |
1025 | childcb (EV_P_ ev_signal *sw, int revents) |
2053 | childcb (EV_P_ ev_signal *sw, int revents) |
1026 | { |
2054 | { |
1027 | int pid, status; |
2055 | int pid, status; |
1028 | |
2056 | |
… | |
… | |
1036 | /* make sure we are called again until all children have been reaped */ |
2064 | /* make sure we are called again until all children have been reaped */ |
1037 | /* we need to do it this way so that the callback gets called before we continue */ |
2065 | /* we need to do it this way so that the callback gets called before we continue */ |
1038 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2066 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1039 | |
2067 | |
1040 | child_reap (EV_A_ pid, pid, status); |
2068 | child_reap (EV_A_ pid, pid, status); |
1041 | if (EV_PID_HASHSIZE > 1) |
2069 | if ((EV_PID_HASHSIZE) > 1) |
1042 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2070 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1043 | } |
2071 | } |
1044 | |
2072 | |
1045 | #endif |
2073 | #endif |
1046 | |
2074 | |
1047 | /*****************************************************************************/ |
2075 | /*****************************************************************************/ |
1048 | |
2076 | |
|
|
2077 | #if EV_USE_IOCP |
|
|
2078 | # include "ev_iocp.c" |
|
|
2079 | #endif |
1049 | #if EV_USE_PORT |
2080 | #if EV_USE_PORT |
1050 | # include "ev_port.c" |
2081 | # include "ev_port.c" |
1051 | #endif |
2082 | #endif |
1052 | #if EV_USE_KQUEUE |
2083 | #if EV_USE_KQUEUE |
1053 | # include "ev_kqueue.c" |
2084 | # include "ev_kqueue.c" |
… | |
… | |
1060 | #endif |
2091 | #endif |
1061 | #if EV_USE_SELECT |
2092 | #if EV_USE_SELECT |
1062 | # include "ev_select.c" |
2093 | # include "ev_select.c" |
1063 | #endif |
2094 | #endif |
1064 | |
2095 | |
1065 | int |
2096 | int ecb_cold |
1066 | ev_version_major (void) |
2097 | ev_version_major (void) |
1067 | { |
2098 | { |
1068 | return EV_VERSION_MAJOR; |
2099 | return EV_VERSION_MAJOR; |
1069 | } |
2100 | } |
1070 | |
2101 | |
1071 | int |
2102 | int ecb_cold |
1072 | ev_version_minor (void) |
2103 | ev_version_minor (void) |
1073 | { |
2104 | { |
1074 | return EV_VERSION_MINOR; |
2105 | return EV_VERSION_MINOR; |
1075 | } |
2106 | } |
1076 | |
2107 | |
1077 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2108 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1078 | int inline_size |
2109 | int inline_size ecb_cold |
1079 | enable_secure (void) |
2110 | enable_secure (void) |
1080 | { |
2111 | { |
1081 | #ifdef _WIN32 |
2112 | #ifdef _WIN32 |
1082 | return 0; |
2113 | return 0; |
1083 | #else |
2114 | #else |
1084 | return getuid () != geteuid () |
2115 | return getuid () != geteuid () |
1085 | || getgid () != getegid (); |
2116 | || getgid () != getegid (); |
1086 | #endif |
2117 | #endif |
1087 | } |
2118 | } |
1088 | |
2119 | |
1089 | unsigned int |
2120 | unsigned int ecb_cold |
1090 | ev_supported_backends (void) |
2121 | ev_supported_backends (void) |
1091 | { |
2122 | { |
1092 | unsigned int flags = 0; |
2123 | unsigned int flags = 0; |
1093 | |
2124 | |
1094 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2125 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1098 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2129 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1099 | |
2130 | |
1100 | return flags; |
2131 | return flags; |
1101 | } |
2132 | } |
1102 | |
2133 | |
1103 | unsigned int |
2134 | unsigned int ecb_cold |
1104 | ev_recommended_backends (void) |
2135 | ev_recommended_backends (void) |
1105 | { |
2136 | { |
1106 | unsigned int flags = ev_supported_backends (); |
2137 | unsigned int flags = ev_supported_backends (); |
1107 | |
2138 | |
1108 | #ifndef __NetBSD__ |
2139 | #ifndef __NetBSD__ |
1109 | /* kqueue is borked on everything but netbsd apparently */ |
2140 | /* kqueue is borked on everything but netbsd apparently */ |
1110 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2141 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1111 | flags &= ~EVBACKEND_KQUEUE; |
2142 | flags &= ~EVBACKEND_KQUEUE; |
1112 | #endif |
2143 | #endif |
1113 | #ifdef __APPLE__ |
2144 | #ifdef __APPLE__ |
1114 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2145 | /* only select works correctly on that "unix-certified" platform */ |
1115 | flags &= ~EVBACKEND_POLL; |
2146 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2147 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2148 | #endif |
|
|
2149 | #ifdef __FreeBSD__ |
|
|
2150 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1116 | #endif |
2151 | #endif |
1117 | |
2152 | |
1118 | return flags; |
2153 | return flags; |
1119 | } |
2154 | } |
1120 | |
2155 | |
1121 | unsigned int |
2156 | unsigned int ecb_cold |
1122 | ev_embeddable_backends (void) |
2157 | ev_embeddable_backends (void) |
1123 | { |
2158 | { |
1124 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2159 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1125 | |
2160 | |
1126 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2161 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1127 | /* please fix it and tell me how to detect the fix */ |
2162 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1128 | flags &= ~EVBACKEND_EPOLL; |
2163 | flags &= ~EVBACKEND_EPOLL; |
1129 | |
2164 | |
1130 | return flags; |
2165 | return flags; |
1131 | } |
2166 | } |
1132 | |
2167 | |
1133 | unsigned int |
2168 | unsigned int |
1134 | ev_backend (EV_P) |
2169 | ev_backend (EV_P) |
1135 | { |
2170 | { |
1136 | return backend; |
2171 | return backend; |
1137 | } |
2172 | } |
1138 | |
2173 | |
|
|
2174 | #if EV_FEATURE_API |
1139 | unsigned int |
2175 | unsigned int |
1140 | ev_loop_count (EV_P) |
2176 | ev_iteration (EV_P) |
1141 | { |
2177 | { |
1142 | return loop_count; |
2178 | return loop_count; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | unsigned int |
|
|
2182 | ev_depth (EV_P) |
|
|
2183 | { |
|
|
2184 | return loop_depth; |
1143 | } |
2185 | } |
1144 | |
2186 | |
1145 | void |
2187 | void |
1146 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2188 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1147 | { |
2189 | { |
… | |
… | |
1152 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2194 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1153 | { |
2195 | { |
1154 | timeout_blocktime = interval; |
2196 | timeout_blocktime = interval; |
1155 | } |
2197 | } |
1156 | |
2198 | |
|
|
2199 | void |
|
|
2200 | ev_set_userdata (EV_P_ void *data) |
|
|
2201 | { |
|
|
2202 | userdata = data; |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | void * |
|
|
2206 | ev_userdata (EV_P) |
|
|
2207 | { |
|
|
2208 | return userdata; |
|
|
2209 | } |
|
|
2210 | |
|
|
2211 | void |
|
|
2212 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
2213 | { |
|
|
2214 | invoke_cb = invoke_pending_cb; |
|
|
2215 | } |
|
|
2216 | |
|
|
2217 | void |
|
|
2218 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
2219 | { |
|
|
2220 | release_cb = release; |
|
|
2221 | acquire_cb = acquire; |
|
|
2222 | } |
|
|
2223 | #endif |
|
|
2224 | |
|
|
2225 | /* initialise a loop structure, must be zero-initialised */ |
1157 | static void noinline |
2226 | static void noinline ecb_cold |
1158 | loop_init (EV_P_ unsigned int flags) |
2227 | loop_init (EV_P_ unsigned int flags) |
1159 | { |
2228 | { |
1160 | if (!backend) |
2229 | if (!backend) |
1161 | { |
2230 | { |
|
|
2231 | origflags = flags; |
|
|
2232 | |
|
|
2233 | #if EV_USE_REALTIME |
|
|
2234 | if (!have_realtime) |
|
|
2235 | { |
|
|
2236 | struct timespec ts; |
|
|
2237 | |
|
|
2238 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2239 | have_realtime = 1; |
|
|
2240 | } |
|
|
2241 | #endif |
|
|
2242 | |
1162 | #if EV_USE_MONOTONIC |
2243 | #if EV_USE_MONOTONIC |
|
|
2244 | if (!have_monotonic) |
1163 | { |
2245 | { |
1164 | struct timespec ts; |
2246 | struct timespec ts; |
|
|
2247 | |
1165 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2248 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1166 | have_monotonic = 1; |
2249 | have_monotonic = 1; |
1167 | } |
2250 | } |
1168 | #endif |
|
|
1169 | |
|
|
1170 | ev_rt_now = ev_time (); |
|
|
1171 | mn_now = get_clock (); |
|
|
1172 | now_floor = mn_now; |
|
|
1173 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1174 | |
|
|
1175 | io_blocktime = 0.; |
|
|
1176 | timeout_blocktime = 0.; |
|
|
1177 | backend = 0; |
|
|
1178 | backend_fd = -1; |
|
|
1179 | gotasync = 0; |
|
|
1180 | #if EV_USE_INOTIFY |
|
|
1181 | fs_fd = -2; |
|
|
1182 | #endif |
2251 | #endif |
1183 | |
2252 | |
1184 | /* pid check not overridable via env */ |
2253 | /* pid check not overridable via env */ |
1185 | #ifndef _WIN32 |
2254 | #ifndef _WIN32 |
1186 | if (flags & EVFLAG_FORKCHECK) |
2255 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1190 | if (!(flags & EVFLAG_NOENV) |
2259 | if (!(flags & EVFLAG_NOENV) |
1191 | && !enable_secure () |
2260 | && !enable_secure () |
1192 | && getenv ("LIBEV_FLAGS")) |
2261 | && getenv ("LIBEV_FLAGS")) |
1193 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2262 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1194 | |
2263 | |
1195 | if (!(flags & 0x0000ffffU)) |
2264 | ev_rt_now = ev_time (); |
|
|
2265 | mn_now = get_clock (); |
|
|
2266 | now_floor = mn_now; |
|
|
2267 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2268 | #if EV_FEATURE_API |
|
|
2269 | invoke_cb = ev_invoke_pending; |
|
|
2270 | #endif |
|
|
2271 | |
|
|
2272 | io_blocktime = 0.; |
|
|
2273 | timeout_blocktime = 0.; |
|
|
2274 | backend = 0; |
|
|
2275 | backend_fd = -1; |
|
|
2276 | sig_pending = 0; |
|
|
2277 | #if EV_ASYNC_ENABLE |
|
|
2278 | async_pending = 0; |
|
|
2279 | #endif |
|
|
2280 | pipe_write_skipped = 0; |
|
|
2281 | pipe_write_wanted = 0; |
|
|
2282 | #if EV_USE_INOTIFY |
|
|
2283 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2284 | #endif |
|
|
2285 | #if EV_USE_SIGNALFD |
|
|
2286 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2287 | #endif |
|
|
2288 | |
|
|
2289 | if (!(flags & EVBACKEND_MASK)) |
1196 | flags |= ev_recommended_backends (); |
2290 | flags |= ev_recommended_backends (); |
1197 | |
2291 | |
|
|
2292 | #if EV_USE_IOCP |
|
|
2293 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2294 | #endif |
1198 | #if EV_USE_PORT |
2295 | #if EV_USE_PORT |
1199 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2296 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1200 | #endif |
2297 | #endif |
1201 | #if EV_USE_KQUEUE |
2298 | #if EV_USE_KQUEUE |
1202 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2299 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1209 | #endif |
2306 | #endif |
1210 | #if EV_USE_SELECT |
2307 | #if EV_USE_SELECT |
1211 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2308 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1212 | #endif |
2309 | #endif |
1213 | |
2310 | |
|
|
2311 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2312 | |
|
|
2313 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1214 | ev_init (&pipeev, pipecb); |
2314 | ev_init (&pipe_w, pipecb); |
1215 | ev_set_priority (&pipeev, EV_MAXPRI); |
2315 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2316 | #endif |
1216 | } |
2317 | } |
1217 | } |
2318 | } |
1218 | |
2319 | |
1219 | static void noinline |
2320 | /* free up a loop structure */ |
|
|
2321 | void ecb_cold |
1220 | loop_destroy (EV_P) |
2322 | ev_loop_destroy (EV_P) |
1221 | { |
2323 | { |
1222 | int i; |
2324 | int i; |
1223 | |
2325 | |
|
|
2326 | #if EV_MULTIPLICITY |
|
|
2327 | /* mimic free (0) */ |
|
|
2328 | if (!EV_A) |
|
|
2329 | return; |
|
|
2330 | #endif |
|
|
2331 | |
|
|
2332 | #if EV_CLEANUP_ENABLE |
|
|
2333 | /* queue cleanup watchers (and execute them) */ |
|
|
2334 | if (expect_false (cleanupcnt)) |
|
|
2335 | { |
|
|
2336 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2337 | EV_INVOKE_PENDING; |
|
|
2338 | } |
|
|
2339 | #endif |
|
|
2340 | |
|
|
2341 | #if EV_CHILD_ENABLE |
|
|
2342 | if (ev_is_active (&childev)) |
|
|
2343 | { |
|
|
2344 | ev_ref (EV_A); /* child watcher */ |
|
|
2345 | ev_signal_stop (EV_A_ &childev); |
|
|
2346 | } |
|
|
2347 | #endif |
|
|
2348 | |
1224 | if (ev_is_active (&pipeev)) |
2349 | if (ev_is_active (&pipe_w)) |
1225 | { |
2350 | { |
1226 | ev_ref (EV_A); /* signal watcher */ |
2351 | /*ev_ref (EV_A);*/ |
1227 | ev_io_stop (EV_A_ &pipeev); |
2352 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1228 | |
2353 | |
1229 | #if EV_USE_EVENTFD |
2354 | #if EV_USE_EVENTFD |
1230 | if (evfd >= 0) |
2355 | if (evfd >= 0) |
1231 | close (evfd); |
2356 | close (evfd); |
1232 | #endif |
2357 | #endif |
1233 | |
2358 | |
1234 | if (evpipe [0] >= 0) |
2359 | if (evpipe [0] >= 0) |
1235 | { |
2360 | { |
1236 | close (evpipe [0]); |
2361 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1237 | close (evpipe [1]); |
2362 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1238 | } |
2363 | } |
1239 | } |
2364 | } |
|
|
2365 | |
|
|
2366 | #if EV_USE_SIGNALFD |
|
|
2367 | if (ev_is_active (&sigfd_w)) |
|
|
2368 | close (sigfd); |
|
|
2369 | #endif |
1240 | |
2370 | |
1241 | #if EV_USE_INOTIFY |
2371 | #if EV_USE_INOTIFY |
1242 | if (fs_fd >= 0) |
2372 | if (fs_fd >= 0) |
1243 | close (fs_fd); |
2373 | close (fs_fd); |
1244 | #endif |
2374 | #endif |
1245 | |
2375 | |
1246 | if (backend_fd >= 0) |
2376 | if (backend_fd >= 0) |
1247 | close (backend_fd); |
2377 | close (backend_fd); |
1248 | |
2378 | |
|
|
2379 | #if EV_USE_IOCP |
|
|
2380 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2381 | #endif |
1249 | #if EV_USE_PORT |
2382 | #if EV_USE_PORT |
1250 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2383 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1251 | #endif |
2384 | #endif |
1252 | #if EV_USE_KQUEUE |
2385 | #if EV_USE_KQUEUE |
1253 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2386 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1268 | #if EV_IDLE_ENABLE |
2401 | #if EV_IDLE_ENABLE |
1269 | array_free (idle, [i]); |
2402 | array_free (idle, [i]); |
1270 | #endif |
2403 | #endif |
1271 | } |
2404 | } |
1272 | |
2405 | |
1273 | ev_free (anfds); anfdmax = 0; |
2406 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1274 | |
2407 | |
1275 | /* have to use the microsoft-never-gets-it-right macro */ |
2408 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2409 | array_free (rfeed, EMPTY); |
1276 | array_free (fdchange, EMPTY); |
2410 | array_free (fdchange, EMPTY); |
1277 | array_free (timer, EMPTY); |
2411 | array_free (timer, EMPTY); |
1278 | #if EV_PERIODIC_ENABLE |
2412 | #if EV_PERIODIC_ENABLE |
1279 | array_free (periodic, EMPTY); |
2413 | array_free (periodic, EMPTY); |
1280 | #endif |
2414 | #endif |
1281 | #if EV_FORK_ENABLE |
2415 | #if EV_FORK_ENABLE |
1282 | array_free (fork, EMPTY); |
2416 | array_free (fork, EMPTY); |
1283 | #endif |
2417 | #endif |
|
|
2418 | #if EV_CLEANUP_ENABLE |
|
|
2419 | array_free (cleanup, EMPTY); |
|
|
2420 | #endif |
1284 | array_free (prepare, EMPTY); |
2421 | array_free (prepare, EMPTY); |
1285 | array_free (check, EMPTY); |
2422 | array_free (check, EMPTY); |
1286 | #if EV_ASYNC_ENABLE |
2423 | #if EV_ASYNC_ENABLE |
1287 | array_free (async, EMPTY); |
2424 | array_free (async, EMPTY); |
1288 | #endif |
2425 | #endif |
1289 | |
2426 | |
1290 | backend = 0; |
2427 | backend = 0; |
|
|
2428 | |
|
|
2429 | #if EV_MULTIPLICITY |
|
|
2430 | if (ev_is_default_loop (EV_A)) |
|
|
2431 | #endif |
|
|
2432 | ev_default_loop_ptr = 0; |
|
|
2433 | #if EV_MULTIPLICITY |
|
|
2434 | else |
|
|
2435 | ev_free (EV_A); |
|
|
2436 | #endif |
1291 | } |
2437 | } |
1292 | |
2438 | |
1293 | #if EV_USE_INOTIFY |
2439 | #if EV_USE_INOTIFY |
1294 | void inline_size infy_fork (EV_P); |
2440 | inline_size void infy_fork (EV_P); |
1295 | #endif |
2441 | #endif |
1296 | |
2442 | |
1297 | void inline_size |
2443 | inline_size void |
1298 | loop_fork (EV_P) |
2444 | loop_fork (EV_P) |
1299 | { |
2445 | { |
1300 | #if EV_USE_PORT |
2446 | #if EV_USE_PORT |
1301 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2447 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1302 | #endif |
2448 | #endif |
… | |
… | |
1308 | #endif |
2454 | #endif |
1309 | #if EV_USE_INOTIFY |
2455 | #if EV_USE_INOTIFY |
1310 | infy_fork (EV_A); |
2456 | infy_fork (EV_A); |
1311 | #endif |
2457 | #endif |
1312 | |
2458 | |
1313 | if (ev_is_active (&pipeev)) |
2459 | if (ev_is_active (&pipe_w)) |
1314 | { |
2460 | { |
1315 | /* this "locks" the handlers against writing to the pipe */ |
2461 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1316 | /* while we modify the fd vars */ |
|
|
1317 | gotsig = 1; |
|
|
1318 | #if EV_ASYNC_ENABLE |
|
|
1319 | gotasync = 1; |
|
|
1320 | #endif |
|
|
1321 | |
2462 | |
1322 | ev_ref (EV_A); |
2463 | ev_ref (EV_A); |
1323 | ev_io_stop (EV_A_ &pipeev); |
2464 | ev_io_stop (EV_A_ &pipe_w); |
1324 | |
2465 | |
1325 | #if EV_USE_EVENTFD |
2466 | #if EV_USE_EVENTFD |
1326 | if (evfd >= 0) |
2467 | if (evfd >= 0) |
1327 | close (evfd); |
2468 | close (evfd); |
1328 | #endif |
2469 | #endif |
1329 | |
2470 | |
1330 | if (evpipe [0] >= 0) |
2471 | if (evpipe [0] >= 0) |
1331 | { |
2472 | { |
1332 | close (evpipe [0]); |
2473 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1333 | close (evpipe [1]); |
2474 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1334 | } |
2475 | } |
1335 | |
2476 | |
|
|
2477 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1336 | evpipe_init (EV_A); |
2478 | evpipe_init (EV_A); |
1337 | /* now iterate over everything, in case we missed something */ |
2479 | /* now iterate over everything, in case we missed something */ |
1338 | pipecb (EV_A_ &pipeev, EV_READ); |
2480 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2481 | #endif |
1339 | } |
2482 | } |
1340 | |
2483 | |
1341 | postfork = 0; |
2484 | postfork = 0; |
1342 | } |
2485 | } |
1343 | |
2486 | |
1344 | #if EV_MULTIPLICITY |
2487 | #if EV_MULTIPLICITY |
|
|
2488 | |
1345 | struct ev_loop * |
2489 | struct ev_loop * ecb_cold |
1346 | ev_loop_new (unsigned int flags) |
2490 | ev_loop_new (unsigned int flags) |
1347 | { |
2491 | { |
1348 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2492 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1349 | |
2493 | |
1350 | memset (loop, 0, sizeof (struct ev_loop)); |
2494 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1351 | |
|
|
1352 | loop_init (EV_A_ flags); |
2495 | loop_init (EV_A_ flags); |
1353 | |
2496 | |
1354 | if (ev_backend (EV_A)) |
2497 | if (ev_backend (EV_A)) |
1355 | return loop; |
2498 | return EV_A; |
1356 | |
2499 | |
|
|
2500 | ev_free (EV_A); |
1357 | return 0; |
2501 | return 0; |
1358 | } |
2502 | } |
1359 | |
2503 | |
1360 | void |
2504 | #endif /* multiplicity */ |
1361 | ev_loop_destroy (EV_P) |
|
|
1362 | { |
|
|
1363 | loop_destroy (EV_A); |
|
|
1364 | ev_free (loop); |
|
|
1365 | } |
|
|
1366 | |
2505 | |
1367 | void |
2506 | #if EV_VERIFY |
1368 | ev_loop_fork (EV_P) |
2507 | static void noinline ecb_cold |
|
|
2508 | verify_watcher (EV_P_ W w) |
1369 | { |
2509 | { |
1370 | postfork = 1; /* must be in line with ev_default_fork */ |
2510 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1371 | } |
|
|
1372 | |
2511 | |
|
|
2512 | if (w->pending) |
|
|
2513 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2514 | } |
|
|
2515 | |
|
|
2516 | static void noinline ecb_cold |
|
|
2517 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2518 | { |
|
|
2519 | int i; |
|
|
2520 | |
|
|
2521 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2522 | { |
|
|
2523 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2524 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2525 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2526 | |
|
|
2527 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2528 | } |
|
|
2529 | } |
|
|
2530 | |
|
|
2531 | static void noinline ecb_cold |
|
|
2532 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2533 | { |
|
|
2534 | while (cnt--) |
|
|
2535 | { |
|
|
2536 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2537 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2538 | } |
|
|
2539 | } |
|
|
2540 | #endif |
|
|
2541 | |
|
|
2542 | #if EV_FEATURE_API |
|
|
2543 | void ecb_cold |
|
|
2544 | ev_verify (EV_P) |
|
|
2545 | { |
|
|
2546 | #if EV_VERIFY |
|
|
2547 | int i; |
|
|
2548 | WL w; |
|
|
2549 | |
|
|
2550 | assert (activecnt >= -1); |
|
|
2551 | |
|
|
2552 | assert (fdchangemax >= fdchangecnt); |
|
|
2553 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2554 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2555 | |
|
|
2556 | assert (anfdmax >= 0); |
|
|
2557 | for (i = 0; i < anfdmax; ++i) |
|
|
2558 | for (w = anfds [i].head; w; w = w->next) |
|
|
2559 | { |
|
|
2560 | verify_watcher (EV_A_ (W)w); |
|
|
2561 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2562 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2563 | } |
|
|
2564 | |
|
|
2565 | assert (timermax >= timercnt); |
|
|
2566 | verify_heap (EV_A_ timers, timercnt); |
|
|
2567 | |
|
|
2568 | #if EV_PERIODIC_ENABLE |
|
|
2569 | assert (periodicmax >= periodiccnt); |
|
|
2570 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2571 | #endif |
|
|
2572 | |
|
|
2573 | for (i = NUMPRI; i--; ) |
|
|
2574 | { |
|
|
2575 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2576 | #if EV_IDLE_ENABLE |
|
|
2577 | assert (idleall >= 0); |
|
|
2578 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2579 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2580 | #endif |
|
|
2581 | } |
|
|
2582 | |
|
|
2583 | #if EV_FORK_ENABLE |
|
|
2584 | assert (forkmax >= forkcnt); |
|
|
2585 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2586 | #endif |
|
|
2587 | |
|
|
2588 | #if EV_CLEANUP_ENABLE |
|
|
2589 | assert (cleanupmax >= cleanupcnt); |
|
|
2590 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2591 | #endif |
|
|
2592 | |
|
|
2593 | #if EV_ASYNC_ENABLE |
|
|
2594 | assert (asyncmax >= asynccnt); |
|
|
2595 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2596 | #endif |
|
|
2597 | |
|
|
2598 | #if EV_PREPARE_ENABLE |
|
|
2599 | assert (preparemax >= preparecnt); |
|
|
2600 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2601 | #endif |
|
|
2602 | |
|
|
2603 | #if EV_CHECK_ENABLE |
|
|
2604 | assert (checkmax >= checkcnt); |
|
|
2605 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2606 | #endif |
|
|
2607 | |
|
|
2608 | # if 0 |
|
|
2609 | #if EV_CHILD_ENABLE |
|
|
2610 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2611 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2612 | #endif |
|
|
2613 | # endif |
|
|
2614 | #endif |
|
|
2615 | } |
1373 | #endif |
2616 | #endif |
1374 | |
2617 | |
1375 | #if EV_MULTIPLICITY |
2618 | #if EV_MULTIPLICITY |
1376 | struct ev_loop * |
2619 | struct ev_loop * ecb_cold |
1377 | ev_default_loop_init (unsigned int flags) |
|
|
1378 | #else |
2620 | #else |
1379 | int |
2621 | int |
|
|
2622 | #endif |
1380 | ev_default_loop (unsigned int flags) |
2623 | ev_default_loop (unsigned int flags) |
1381 | #endif |
|
|
1382 | { |
2624 | { |
1383 | if (!ev_default_loop_ptr) |
2625 | if (!ev_default_loop_ptr) |
1384 | { |
2626 | { |
1385 | #if EV_MULTIPLICITY |
2627 | #if EV_MULTIPLICITY |
1386 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2628 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1387 | #else |
2629 | #else |
1388 | ev_default_loop_ptr = 1; |
2630 | ev_default_loop_ptr = 1; |
1389 | #endif |
2631 | #endif |
1390 | |
2632 | |
1391 | loop_init (EV_A_ flags); |
2633 | loop_init (EV_A_ flags); |
1392 | |
2634 | |
1393 | if (ev_backend (EV_A)) |
2635 | if (ev_backend (EV_A)) |
1394 | { |
2636 | { |
1395 | #ifndef _WIN32 |
2637 | #if EV_CHILD_ENABLE |
1396 | ev_signal_init (&childev, childcb, SIGCHLD); |
2638 | ev_signal_init (&childev, childcb, SIGCHLD); |
1397 | ev_set_priority (&childev, EV_MAXPRI); |
2639 | ev_set_priority (&childev, EV_MAXPRI); |
1398 | ev_signal_start (EV_A_ &childev); |
2640 | ev_signal_start (EV_A_ &childev); |
1399 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2641 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1400 | #endif |
2642 | #endif |
… | |
… | |
1405 | |
2647 | |
1406 | return ev_default_loop_ptr; |
2648 | return ev_default_loop_ptr; |
1407 | } |
2649 | } |
1408 | |
2650 | |
1409 | void |
2651 | void |
1410 | ev_default_destroy (void) |
2652 | ev_loop_fork (EV_P) |
1411 | { |
2653 | { |
1412 | #if EV_MULTIPLICITY |
|
|
1413 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1414 | #endif |
|
|
1415 | |
|
|
1416 | #ifndef _WIN32 |
|
|
1417 | ev_ref (EV_A); /* child watcher */ |
|
|
1418 | ev_signal_stop (EV_A_ &childev); |
|
|
1419 | #endif |
|
|
1420 | |
|
|
1421 | loop_destroy (EV_A); |
|
|
1422 | } |
|
|
1423 | |
|
|
1424 | void |
|
|
1425 | ev_default_fork (void) |
|
|
1426 | { |
|
|
1427 | #if EV_MULTIPLICITY |
|
|
1428 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1429 | #endif |
|
|
1430 | |
|
|
1431 | if (backend) |
|
|
1432 | postfork = 1; /* must be in line with ev_loop_fork */ |
2654 | postfork = 1; /* must be in line with ev_default_fork */ |
1433 | } |
2655 | } |
1434 | |
2656 | |
1435 | /*****************************************************************************/ |
2657 | /*****************************************************************************/ |
1436 | |
2658 | |
1437 | void |
2659 | void |
1438 | ev_invoke (EV_P_ void *w, int revents) |
2660 | ev_invoke (EV_P_ void *w, int revents) |
1439 | { |
2661 | { |
1440 | EV_CB_INVOKE ((W)w, revents); |
2662 | EV_CB_INVOKE ((W)w, revents); |
1441 | } |
2663 | } |
1442 | |
2664 | |
1443 | void inline_speed |
2665 | unsigned int |
1444 | call_pending (EV_P) |
2666 | ev_pending_count (EV_P) |
|
|
2667 | { |
|
|
2668 | int pri; |
|
|
2669 | unsigned int count = 0; |
|
|
2670 | |
|
|
2671 | for (pri = NUMPRI; pri--; ) |
|
|
2672 | count += pendingcnt [pri]; |
|
|
2673 | |
|
|
2674 | return count; |
|
|
2675 | } |
|
|
2676 | |
|
|
2677 | void noinline |
|
|
2678 | ev_invoke_pending (EV_P) |
1445 | { |
2679 | { |
1446 | int pri; |
2680 | int pri; |
1447 | |
2681 | |
1448 | for (pri = NUMPRI; pri--; ) |
2682 | for (pri = NUMPRI; pri--; ) |
1449 | while (pendingcnt [pri]) |
2683 | while (pendingcnt [pri]) |
1450 | { |
2684 | { |
1451 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2685 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1452 | |
2686 | |
1453 | if (expect_true (p->w)) |
|
|
1454 | { |
|
|
1455 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1456 | |
|
|
1457 | p->w->pending = 0; |
2687 | p->w->pending = 0; |
1458 | EV_CB_INVOKE (p->w, p->events); |
2688 | EV_CB_INVOKE (p->w, p->events); |
1459 | } |
2689 | EV_FREQUENT_CHECK; |
1460 | } |
2690 | } |
1461 | } |
2691 | } |
1462 | |
2692 | |
1463 | void inline_size |
|
|
1464 | timers_reify (EV_P) |
|
|
1465 | { |
|
|
1466 | while (timercnt && ev_at (timers [1]) <= mn_now) |
|
|
1467 | { |
|
|
1468 | ev_timer *w = (ev_timer *)timers [1]; |
|
|
1469 | |
|
|
1470 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1471 | |
|
|
1472 | /* first reschedule or stop timer */ |
|
|
1473 | if (w->repeat) |
|
|
1474 | { |
|
|
1475 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1476 | |
|
|
1477 | ev_at (w) += w->repeat; |
|
|
1478 | if (ev_at (w) < mn_now) |
|
|
1479 | ev_at (w) = mn_now; |
|
|
1480 | |
|
|
1481 | downheap (timers, timercnt, 1); |
|
|
1482 | } |
|
|
1483 | else |
|
|
1484 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1485 | |
|
|
1486 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1487 | } |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | #if EV_PERIODIC_ENABLE |
|
|
1491 | void inline_size |
|
|
1492 | periodics_reify (EV_P) |
|
|
1493 | { |
|
|
1494 | while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now) |
|
|
1495 | { |
|
|
1496 | ev_periodic *w = (ev_periodic *)periodics [1]; |
|
|
1497 | |
|
|
1498 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1499 | |
|
|
1500 | /* first reschedule or stop timer */ |
|
|
1501 | if (w->reschedule_cb) |
|
|
1502 | { |
|
|
1503 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1504 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1505 | downheap (periodics, periodiccnt, 1); |
|
|
1506 | } |
|
|
1507 | else if (w->interval) |
|
|
1508 | { |
|
|
1509 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1510 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1511 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1512 | downheap (periodics, periodiccnt, 1); |
|
|
1513 | } |
|
|
1514 | else |
|
|
1515 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1516 | |
|
|
1517 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1518 | } |
|
|
1519 | } |
|
|
1520 | |
|
|
1521 | static void noinline |
|
|
1522 | periodics_reschedule (EV_P) |
|
|
1523 | { |
|
|
1524 | int i; |
|
|
1525 | |
|
|
1526 | /* adjust periodics after time jump */ |
|
|
1527 | for (i = 0; i < periodiccnt; ++i) |
|
|
1528 | { |
|
|
1529 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1530 | |
|
|
1531 | if (w->reschedule_cb) |
|
|
1532 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1533 | else if (w->interval) |
|
|
1534 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | /* now rebuild the heap */ |
|
|
1538 | for (i = periodiccnt >> 1; i--; ) |
|
|
1539 | downheap (periodics, periodiccnt, i); |
|
|
1540 | } |
|
|
1541 | #endif |
|
|
1542 | |
|
|
1543 | #if EV_IDLE_ENABLE |
2693 | #if EV_IDLE_ENABLE |
1544 | void inline_size |
2694 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2695 | /* only when higher priorities are idle" logic */ |
|
|
2696 | inline_size void |
1545 | idle_reify (EV_P) |
2697 | idle_reify (EV_P) |
1546 | { |
2698 | { |
1547 | if (expect_false (idleall)) |
2699 | if (expect_false (idleall)) |
1548 | { |
2700 | { |
1549 | int pri; |
2701 | int pri; |
… | |
… | |
1561 | } |
2713 | } |
1562 | } |
2714 | } |
1563 | } |
2715 | } |
1564 | #endif |
2716 | #endif |
1565 | |
2717 | |
1566 | void inline_speed |
2718 | /* make timers pending */ |
|
|
2719 | inline_size void |
|
|
2720 | timers_reify (EV_P) |
|
|
2721 | { |
|
|
2722 | EV_FREQUENT_CHECK; |
|
|
2723 | |
|
|
2724 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2725 | { |
|
|
2726 | do |
|
|
2727 | { |
|
|
2728 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2729 | |
|
|
2730 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2731 | |
|
|
2732 | /* first reschedule or stop timer */ |
|
|
2733 | if (w->repeat) |
|
|
2734 | { |
|
|
2735 | ev_at (w) += w->repeat; |
|
|
2736 | if (ev_at (w) < mn_now) |
|
|
2737 | ev_at (w) = mn_now; |
|
|
2738 | |
|
|
2739 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2740 | |
|
|
2741 | ANHE_at_cache (timers [HEAP0]); |
|
|
2742 | downheap (timers, timercnt, HEAP0); |
|
|
2743 | } |
|
|
2744 | else |
|
|
2745 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2746 | |
|
|
2747 | EV_FREQUENT_CHECK; |
|
|
2748 | feed_reverse (EV_A_ (W)w); |
|
|
2749 | } |
|
|
2750 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2751 | |
|
|
2752 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2753 | } |
|
|
2754 | } |
|
|
2755 | |
|
|
2756 | #if EV_PERIODIC_ENABLE |
|
|
2757 | |
|
|
2758 | static void noinline |
|
|
2759 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2760 | { |
|
|
2761 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2762 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2763 | |
|
|
2764 | /* the above almost always errs on the low side */ |
|
|
2765 | while (at <= ev_rt_now) |
|
|
2766 | { |
|
|
2767 | ev_tstamp nat = at + w->interval; |
|
|
2768 | |
|
|
2769 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2770 | if (expect_false (nat == at)) |
|
|
2771 | { |
|
|
2772 | at = ev_rt_now; |
|
|
2773 | break; |
|
|
2774 | } |
|
|
2775 | |
|
|
2776 | at = nat; |
|
|
2777 | } |
|
|
2778 | |
|
|
2779 | ev_at (w) = at; |
|
|
2780 | } |
|
|
2781 | |
|
|
2782 | /* make periodics pending */ |
|
|
2783 | inline_size void |
|
|
2784 | periodics_reify (EV_P) |
|
|
2785 | { |
|
|
2786 | EV_FREQUENT_CHECK; |
|
|
2787 | |
|
|
2788 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2789 | { |
|
|
2790 | int feed_count = 0; |
|
|
2791 | |
|
|
2792 | do |
|
|
2793 | { |
|
|
2794 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2795 | |
|
|
2796 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2797 | |
|
|
2798 | /* first reschedule or stop timer */ |
|
|
2799 | if (w->reschedule_cb) |
|
|
2800 | { |
|
|
2801 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2802 | |
|
|
2803 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2804 | |
|
|
2805 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2806 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2807 | } |
|
|
2808 | else if (w->interval) |
|
|
2809 | { |
|
|
2810 | periodic_recalc (EV_A_ w); |
|
|
2811 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2812 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2813 | } |
|
|
2814 | else |
|
|
2815 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2816 | |
|
|
2817 | EV_FREQUENT_CHECK; |
|
|
2818 | feed_reverse (EV_A_ (W)w); |
|
|
2819 | } |
|
|
2820 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2821 | |
|
|
2822 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2823 | } |
|
|
2824 | } |
|
|
2825 | |
|
|
2826 | /* simply recalculate all periodics */ |
|
|
2827 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2828 | static void noinline ecb_cold |
|
|
2829 | periodics_reschedule (EV_P) |
|
|
2830 | { |
|
|
2831 | int i; |
|
|
2832 | |
|
|
2833 | /* adjust periodics after time jump */ |
|
|
2834 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2835 | { |
|
|
2836 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2837 | |
|
|
2838 | if (w->reschedule_cb) |
|
|
2839 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2840 | else if (w->interval) |
|
|
2841 | periodic_recalc (EV_A_ w); |
|
|
2842 | |
|
|
2843 | ANHE_at_cache (periodics [i]); |
|
|
2844 | } |
|
|
2845 | |
|
|
2846 | reheap (periodics, periodiccnt); |
|
|
2847 | } |
|
|
2848 | #endif |
|
|
2849 | |
|
|
2850 | /* adjust all timers by a given offset */ |
|
|
2851 | static void noinline ecb_cold |
|
|
2852 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2853 | { |
|
|
2854 | int i; |
|
|
2855 | |
|
|
2856 | for (i = 0; i < timercnt; ++i) |
|
|
2857 | { |
|
|
2858 | ANHE *he = timers + i + HEAP0; |
|
|
2859 | ANHE_w (*he)->at += adjust; |
|
|
2860 | ANHE_at_cache (*he); |
|
|
2861 | } |
|
|
2862 | } |
|
|
2863 | |
|
|
2864 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2865 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2866 | inline_speed void |
1567 | time_update (EV_P_ ev_tstamp max_block) |
2867 | time_update (EV_P_ ev_tstamp max_block) |
1568 | { |
2868 | { |
1569 | int i; |
|
|
1570 | |
|
|
1571 | #if EV_USE_MONOTONIC |
2869 | #if EV_USE_MONOTONIC |
1572 | if (expect_true (have_monotonic)) |
2870 | if (expect_true (have_monotonic)) |
1573 | { |
2871 | { |
|
|
2872 | int i; |
1574 | ev_tstamp odiff = rtmn_diff; |
2873 | ev_tstamp odiff = rtmn_diff; |
1575 | |
2874 | |
1576 | mn_now = get_clock (); |
2875 | mn_now = get_clock (); |
1577 | |
2876 | |
1578 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2877 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1594 | * doesn't hurt either as we only do this on time-jumps or |
2893 | * doesn't hurt either as we only do this on time-jumps or |
1595 | * in the unlikely event of having been preempted here. |
2894 | * in the unlikely event of having been preempted here. |
1596 | */ |
2895 | */ |
1597 | for (i = 4; --i; ) |
2896 | for (i = 4; --i; ) |
1598 | { |
2897 | { |
|
|
2898 | ev_tstamp diff; |
1599 | rtmn_diff = ev_rt_now - mn_now; |
2899 | rtmn_diff = ev_rt_now - mn_now; |
1600 | |
2900 | |
1601 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2901 | diff = odiff - rtmn_diff; |
|
|
2902 | |
|
|
2903 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1602 | return; /* all is well */ |
2904 | return; /* all is well */ |
1603 | |
2905 | |
1604 | ev_rt_now = ev_time (); |
2906 | ev_rt_now = ev_time (); |
1605 | mn_now = get_clock (); |
2907 | mn_now = get_clock (); |
1606 | now_floor = mn_now; |
2908 | now_floor = mn_now; |
1607 | } |
2909 | } |
1608 | |
2910 | |
|
|
2911 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2912 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1609 | # if EV_PERIODIC_ENABLE |
2913 | # if EV_PERIODIC_ENABLE |
1610 | periodics_reschedule (EV_A); |
2914 | periodics_reschedule (EV_A); |
1611 | # endif |
2915 | # endif |
1612 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1613 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1614 | } |
2916 | } |
1615 | else |
2917 | else |
1616 | #endif |
2918 | #endif |
1617 | { |
2919 | { |
1618 | ev_rt_now = ev_time (); |
2920 | ev_rt_now = ev_time (); |
1619 | |
2921 | |
1620 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2922 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1621 | { |
2923 | { |
|
|
2924 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2925 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1622 | #if EV_PERIODIC_ENABLE |
2926 | #if EV_PERIODIC_ENABLE |
1623 | periodics_reschedule (EV_A); |
2927 | periodics_reschedule (EV_A); |
1624 | #endif |
2928 | #endif |
1625 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1626 | for (i = 1; i <= timercnt; ++i) |
|
|
1627 | ev_at (timers [i]) += ev_rt_now - mn_now; |
|
|
1628 | } |
2929 | } |
1629 | |
2930 | |
1630 | mn_now = ev_rt_now; |
2931 | mn_now = ev_rt_now; |
1631 | } |
2932 | } |
1632 | } |
2933 | } |
1633 | |
2934 | |
1634 | void |
2935 | void |
1635 | ev_ref (EV_P) |
|
|
1636 | { |
|
|
1637 | ++activecnt; |
|
|
1638 | } |
|
|
1639 | |
|
|
1640 | void |
|
|
1641 | ev_unref (EV_P) |
|
|
1642 | { |
|
|
1643 | --activecnt; |
|
|
1644 | } |
|
|
1645 | |
|
|
1646 | static int loop_done; |
|
|
1647 | |
|
|
1648 | void |
|
|
1649 | ev_loop (EV_P_ int flags) |
2936 | ev_run (EV_P_ int flags) |
1650 | { |
2937 | { |
|
|
2938 | #if EV_FEATURE_API |
|
|
2939 | ++loop_depth; |
|
|
2940 | #endif |
|
|
2941 | |
|
|
2942 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2943 | |
1651 | loop_done = EVUNLOOP_CANCEL; |
2944 | loop_done = EVBREAK_CANCEL; |
1652 | |
2945 | |
1653 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2946 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1654 | |
2947 | |
1655 | do |
2948 | do |
1656 | { |
2949 | { |
|
|
2950 | #if EV_VERIFY >= 2 |
|
|
2951 | ev_verify (EV_A); |
|
|
2952 | #endif |
|
|
2953 | |
1657 | #ifndef _WIN32 |
2954 | #ifndef _WIN32 |
1658 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2955 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1659 | if (expect_false (getpid () != curpid)) |
2956 | if (expect_false (getpid () != curpid)) |
1660 | { |
2957 | { |
1661 | curpid = getpid (); |
2958 | curpid = getpid (); |
… | |
… | |
1667 | /* we might have forked, so queue fork handlers */ |
2964 | /* we might have forked, so queue fork handlers */ |
1668 | if (expect_false (postfork)) |
2965 | if (expect_false (postfork)) |
1669 | if (forkcnt) |
2966 | if (forkcnt) |
1670 | { |
2967 | { |
1671 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2968 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1672 | call_pending (EV_A); |
2969 | EV_INVOKE_PENDING; |
1673 | } |
2970 | } |
1674 | #endif |
2971 | #endif |
1675 | |
2972 | |
|
|
2973 | #if EV_PREPARE_ENABLE |
1676 | /* queue prepare watchers (and execute them) */ |
2974 | /* queue prepare watchers (and execute them) */ |
1677 | if (expect_false (preparecnt)) |
2975 | if (expect_false (preparecnt)) |
1678 | { |
2976 | { |
1679 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2977 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1680 | call_pending (EV_A); |
2978 | EV_INVOKE_PENDING; |
1681 | } |
2979 | } |
|
|
2980 | #endif |
1682 | |
2981 | |
1683 | if (expect_false (!activecnt)) |
2982 | if (expect_false (loop_done)) |
1684 | break; |
2983 | break; |
1685 | |
2984 | |
1686 | /* we might have forked, so reify kernel state if necessary */ |
2985 | /* we might have forked, so reify kernel state if necessary */ |
1687 | if (expect_false (postfork)) |
2986 | if (expect_false (postfork)) |
1688 | loop_fork (EV_A); |
2987 | loop_fork (EV_A); |
… | |
… | |
1693 | /* calculate blocking time */ |
2992 | /* calculate blocking time */ |
1694 | { |
2993 | { |
1695 | ev_tstamp waittime = 0.; |
2994 | ev_tstamp waittime = 0.; |
1696 | ev_tstamp sleeptime = 0.; |
2995 | ev_tstamp sleeptime = 0.; |
1697 | |
2996 | |
|
|
2997 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2998 | ev_tstamp prev_mn_now = mn_now; |
|
|
2999 | |
|
|
3000 | /* update time to cancel out callback processing overhead */ |
|
|
3001 | time_update (EV_A_ 1e100); |
|
|
3002 | |
|
|
3003 | /* from now on, we want a pipe-wake-up */ |
|
|
3004 | pipe_write_wanted = 1; |
|
|
3005 | |
|
|
3006 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3007 | |
1698 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3008 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1699 | { |
3009 | { |
1700 | /* update time to cancel out callback processing overhead */ |
|
|
1701 | time_update (EV_A_ 1e100); |
|
|
1702 | |
|
|
1703 | waittime = MAX_BLOCKTIME; |
3010 | waittime = MAX_BLOCKTIME; |
1704 | |
3011 | |
1705 | if (timercnt) |
3012 | if (timercnt) |
1706 | { |
3013 | { |
1707 | ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; |
3014 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1708 | if (waittime > to) waittime = to; |
3015 | if (waittime > to) waittime = to; |
1709 | } |
3016 | } |
1710 | |
3017 | |
1711 | #if EV_PERIODIC_ENABLE |
3018 | #if EV_PERIODIC_ENABLE |
1712 | if (periodiccnt) |
3019 | if (periodiccnt) |
1713 | { |
3020 | { |
1714 | ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge; |
3021 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1715 | if (waittime > to) waittime = to; |
3022 | if (waittime > to) waittime = to; |
1716 | } |
3023 | } |
1717 | #endif |
3024 | #endif |
1718 | |
3025 | |
|
|
3026 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1719 | if (expect_false (waittime < timeout_blocktime)) |
3027 | if (expect_false (waittime < timeout_blocktime)) |
1720 | waittime = timeout_blocktime; |
3028 | waittime = timeout_blocktime; |
1721 | |
3029 | |
1722 | sleeptime = waittime - backend_fudge; |
3030 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3031 | /* to pass a minimum nonzero value to the backend */ |
|
|
3032 | if (expect_false (waittime < backend_mintime)) |
|
|
3033 | waittime = backend_mintime; |
1723 | |
3034 | |
|
|
3035 | /* extra check because io_blocktime is commonly 0 */ |
1724 | if (expect_true (sleeptime > io_blocktime)) |
3036 | if (expect_false (io_blocktime)) |
1725 | sleeptime = io_blocktime; |
|
|
1726 | |
|
|
1727 | if (sleeptime) |
|
|
1728 | { |
3037 | { |
|
|
3038 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3039 | |
|
|
3040 | if (sleeptime > waittime - backend_mintime) |
|
|
3041 | sleeptime = waittime - backend_mintime; |
|
|
3042 | |
|
|
3043 | if (expect_true (sleeptime > 0.)) |
|
|
3044 | { |
1729 | ev_sleep (sleeptime); |
3045 | ev_sleep (sleeptime); |
1730 | waittime -= sleeptime; |
3046 | waittime -= sleeptime; |
|
|
3047 | } |
1731 | } |
3048 | } |
1732 | } |
3049 | } |
1733 | |
3050 | |
|
|
3051 | #if EV_FEATURE_API |
1734 | ++loop_count; |
3052 | ++loop_count; |
|
|
3053 | #endif |
|
|
3054 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1735 | backend_poll (EV_A_ waittime); |
3055 | backend_poll (EV_A_ waittime); |
|
|
3056 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3057 | |
|
|
3058 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3059 | |
|
|
3060 | if (pipe_write_skipped) |
|
|
3061 | { |
|
|
3062 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3063 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3064 | } |
|
|
3065 | |
1736 | |
3066 | |
1737 | /* update ev_rt_now, do magic */ |
3067 | /* update ev_rt_now, do magic */ |
1738 | time_update (EV_A_ waittime + sleeptime); |
3068 | time_update (EV_A_ waittime + sleeptime); |
1739 | } |
3069 | } |
1740 | |
3070 | |
… | |
… | |
1747 | #if EV_IDLE_ENABLE |
3077 | #if EV_IDLE_ENABLE |
1748 | /* queue idle watchers unless other events are pending */ |
3078 | /* queue idle watchers unless other events are pending */ |
1749 | idle_reify (EV_A); |
3079 | idle_reify (EV_A); |
1750 | #endif |
3080 | #endif |
1751 | |
3081 | |
|
|
3082 | #if EV_CHECK_ENABLE |
1752 | /* queue check watchers, to be executed first */ |
3083 | /* queue check watchers, to be executed first */ |
1753 | if (expect_false (checkcnt)) |
3084 | if (expect_false (checkcnt)) |
1754 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3085 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3086 | #endif |
1755 | |
3087 | |
1756 | call_pending (EV_A); |
3088 | EV_INVOKE_PENDING; |
1757 | } |
3089 | } |
1758 | while (expect_true ( |
3090 | while (expect_true ( |
1759 | activecnt |
3091 | activecnt |
1760 | && !loop_done |
3092 | && !loop_done |
1761 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3093 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
1762 | )); |
3094 | )); |
1763 | |
3095 | |
1764 | if (loop_done == EVUNLOOP_ONE) |
3096 | if (loop_done == EVBREAK_ONE) |
1765 | loop_done = EVUNLOOP_CANCEL; |
3097 | loop_done = EVBREAK_CANCEL; |
|
|
3098 | |
|
|
3099 | #if EV_FEATURE_API |
|
|
3100 | --loop_depth; |
|
|
3101 | #endif |
1766 | } |
3102 | } |
1767 | |
3103 | |
1768 | void |
3104 | void |
1769 | ev_unloop (EV_P_ int how) |
3105 | ev_break (EV_P_ int how) |
1770 | { |
3106 | { |
1771 | loop_done = how; |
3107 | loop_done = how; |
1772 | } |
3108 | } |
1773 | |
3109 | |
|
|
3110 | void |
|
|
3111 | ev_ref (EV_P) |
|
|
3112 | { |
|
|
3113 | ++activecnt; |
|
|
3114 | } |
|
|
3115 | |
|
|
3116 | void |
|
|
3117 | ev_unref (EV_P) |
|
|
3118 | { |
|
|
3119 | --activecnt; |
|
|
3120 | } |
|
|
3121 | |
|
|
3122 | void |
|
|
3123 | ev_now_update (EV_P) |
|
|
3124 | { |
|
|
3125 | time_update (EV_A_ 1e100); |
|
|
3126 | } |
|
|
3127 | |
|
|
3128 | void |
|
|
3129 | ev_suspend (EV_P) |
|
|
3130 | { |
|
|
3131 | ev_now_update (EV_A); |
|
|
3132 | } |
|
|
3133 | |
|
|
3134 | void |
|
|
3135 | ev_resume (EV_P) |
|
|
3136 | { |
|
|
3137 | ev_tstamp mn_prev = mn_now; |
|
|
3138 | |
|
|
3139 | ev_now_update (EV_A); |
|
|
3140 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3141 | #if EV_PERIODIC_ENABLE |
|
|
3142 | /* TODO: really do this? */ |
|
|
3143 | periodics_reschedule (EV_A); |
|
|
3144 | #endif |
|
|
3145 | } |
|
|
3146 | |
1774 | /*****************************************************************************/ |
3147 | /*****************************************************************************/ |
|
|
3148 | /* singly-linked list management, used when the expected list length is short */ |
1775 | |
3149 | |
1776 | void inline_size |
3150 | inline_size void |
1777 | wlist_add (WL *head, WL elem) |
3151 | wlist_add (WL *head, WL elem) |
1778 | { |
3152 | { |
1779 | elem->next = *head; |
3153 | elem->next = *head; |
1780 | *head = elem; |
3154 | *head = elem; |
1781 | } |
3155 | } |
1782 | |
3156 | |
1783 | void inline_size |
3157 | inline_size void |
1784 | wlist_del (WL *head, WL elem) |
3158 | wlist_del (WL *head, WL elem) |
1785 | { |
3159 | { |
1786 | while (*head) |
3160 | while (*head) |
1787 | { |
3161 | { |
1788 | if (*head == elem) |
3162 | if (expect_true (*head == elem)) |
1789 | { |
3163 | { |
1790 | *head = elem->next; |
3164 | *head = elem->next; |
1791 | return; |
3165 | break; |
1792 | } |
3166 | } |
1793 | |
3167 | |
1794 | head = &(*head)->next; |
3168 | head = &(*head)->next; |
1795 | } |
3169 | } |
1796 | } |
3170 | } |
1797 | |
3171 | |
1798 | void inline_speed |
3172 | /* internal, faster, version of ev_clear_pending */ |
|
|
3173 | inline_speed void |
1799 | clear_pending (EV_P_ W w) |
3174 | clear_pending (EV_P_ W w) |
1800 | { |
3175 | { |
1801 | if (w->pending) |
3176 | if (w->pending) |
1802 | { |
3177 | { |
1803 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3178 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1804 | w->pending = 0; |
3179 | w->pending = 0; |
1805 | } |
3180 | } |
1806 | } |
3181 | } |
1807 | |
3182 | |
1808 | int |
3183 | int |
… | |
… | |
1812 | int pending = w_->pending; |
3187 | int pending = w_->pending; |
1813 | |
3188 | |
1814 | if (expect_true (pending)) |
3189 | if (expect_true (pending)) |
1815 | { |
3190 | { |
1816 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3191 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3192 | p->w = (W)&pending_w; |
1817 | w_->pending = 0; |
3193 | w_->pending = 0; |
1818 | p->w = 0; |
|
|
1819 | return p->events; |
3194 | return p->events; |
1820 | } |
3195 | } |
1821 | else |
3196 | else |
1822 | return 0; |
3197 | return 0; |
1823 | } |
3198 | } |
1824 | |
3199 | |
1825 | void inline_size |
3200 | inline_size void |
1826 | pri_adjust (EV_P_ W w) |
3201 | pri_adjust (EV_P_ W w) |
1827 | { |
3202 | { |
1828 | int pri = w->priority; |
3203 | int pri = ev_priority (w); |
1829 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3204 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1830 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3205 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1831 | w->priority = pri; |
3206 | ev_set_priority (w, pri); |
1832 | } |
3207 | } |
1833 | |
3208 | |
1834 | void inline_speed |
3209 | inline_speed void |
1835 | ev_start (EV_P_ W w, int active) |
3210 | ev_start (EV_P_ W w, int active) |
1836 | { |
3211 | { |
1837 | pri_adjust (EV_A_ w); |
3212 | pri_adjust (EV_A_ w); |
1838 | w->active = active; |
3213 | w->active = active; |
1839 | ev_ref (EV_A); |
3214 | ev_ref (EV_A); |
1840 | } |
3215 | } |
1841 | |
3216 | |
1842 | void inline_size |
3217 | inline_size void |
1843 | ev_stop (EV_P_ W w) |
3218 | ev_stop (EV_P_ W w) |
1844 | { |
3219 | { |
1845 | ev_unref (EV_A); |
3220 | ev_unref (EV_A); |
1846 | w->active = 0; |
3221 | w->active = 0; |
1847 | } |
3222 | } |
… | |
… | |
1854 | int fd = w->fd; |
3229 | int fd = w->fd; |
1855 | |
3230 | |
1856 | if (expect_false (ev_is_active (w))) |
3231 | if (expect_false (ev_is_active (w))) |
1857 | return; |
3232 | return; |
1858 | |
3233 | |
1859 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3234 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
3235 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
3236 | |
|
|
3237 | EV_FREQUENT_CHECK; |
1860 | |
3238 | |
1861 | ev_start (EV_A_ (W)w, 1); |
3239 | ev_start (EV_A_ (W)w, 1); |
1862 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
3240 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1863 | wlist_add (&anfds[fd].head, (WL)w); |
3241 | wlist_add (&anfds[fd].head, (WL)w); |
1864 | |
3242 | |
1865 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
3243 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1866 | w->events &= ~EV_IOFDSET; |
3244 | w->events &= ~EV__IOFDSET; |
|
|
3245 | |
|
|
3246 | EV_FREQUENT_CHECK; |
1867 | } |
3247 | } |
1868 | |
3248 | |
1869 | void noinline |
3249 | void noinline |
1870 | ev_io_stop (EV_P_ ev_io *w) |
3250 | ev_io_stop (EV_P_ ev_io *w) |
1871 | { |
3251 | { |
1872 | clear_pending (EV_A_ (W)w); |
3252 | clear_pending (EV_A_ (W)w); |
1873 | if (expect_false (!ev_is_active (w))) |
3253 | if (expect_false (!ev_is_active (w))) |
1874 | return; |
3254 | return; |
1875 | |
3255 | |
1876 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3256 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
3257 | |
|
|
3258 | EV_FREQUENT_CHECK; |
1877 | |
3259 | |
1878 | wlist_del (&anfds[w->fd].head, (WL)w); |
3260 | wlist_del (&anfds[w->fd].head, (WL)w); |
1879 | ev_stop (EV_A_ (W)w); |
3261 | ev_stop (EV_A_ (W)w); |
1880 | |
3262 | |
1881 | fd_change (EV_A_ w->fd, 1); |
3263 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
3264 | |
|
|
3265 | EV_FREQUENT_CHECK; |
1882 | } |
3266 | } |
1883 | |
3267 | |
1884 | void noinline |
3268 | void noinline |
1885 | ev_timer_start (EV_P_ ev_timer *w) |
3269 | ev_timer_start (EV_P_ ev_timer *w) |
1886 | { |
3270 | { |
1887 | if (expect_false (ev_is_active (w))) |
3271 | if (expect_false (ev_is_active (w))) |
1888 | return; |
3272 | return; |
1889 | |
3273 | |
1890 | ev_at (w) += mn_now; |
3274 | ev_at (w) += mn_now; |
1891 | |
3275 | |
1892 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3276 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1893 | |
3277 | |
|
|
3278 | EV_FREQUENT_CHECK; |
|
|
3279 | |
|
|
3280 | ++timercnt; |
1894 | ev_start (EV_A_ (W)w, ++timercnt); |
3281 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1895 | array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); |
3282 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1896 | timers [timercnt] = (WT)w; |
3283 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
3284 | ANHE_at_cache (timers [ev_active (w)]); |
1897 | upheap (timers, timercnt); |
3285 | upheap (timers, ev_active (w)); |
1898 | |
3286 | |
|
|
3287 | EV_FREQUENT_CHECK; |
|
|
3288 | |
1899 | /*assert (("internal timer heap corruption", timers [((W)w)->active] == w));*/ |
3289 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1900 | } |
3290 | } |
1901 | |
3291 | |
1902 | void noinline |
3292 | void noinline |
1903 | ev_timer_stop (EV_P_ ev_timer *w) |
3293 | ev_timer_stop (EV_P_ ev_timer *w) |
1904 | { |
3294 | { |
1905 | clear_pending (EV_A_ (W)w); |
3295 | clear_pending (EV_A_ (W)w); |
1906 | if (expect_false (!ev_is_active (w))) |
3296 | if (expect_false (!ev_is_active (w))) |
1907 | return; |
3297 | return; |
1908 | |
3298 | |
1909 | assert (("internal timer heap corruption", timers [((W)w)->active] == (WT)w)); |
3299 | EV_FREQUENT_CHECK; |
1910 | |
3300 | |
1911 | { |
3301 | { |
1912 | int active = ((W)w)->active; |
3302 | int active = ev_active (w); |
1913 | |
3303 | |
|
|
3304 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
3305 | |
|
|
3306 | --timercnt; |
|
|
3307 | |
1914 | if (expect_true (active < timercnt)) |
3308 | if (expect_true (active < timercnt + HEAP0)) |
1915 | { |
3309 | { |
1916 | timers [active] = timers [timercnt]; |
3310 | timers [active] = timers [timercnt + HEAP0]; |
1917 | adjustheap (timers, timercnt, active); |
3311 | adjustheap (timers, timercnt, active); |
1918 | } |
3312 | } |
1919 | |
|
|
1920 | --timercnt; |
|
|
1921 | } |
3313 | } |
1922 | |
3314 | |
1923 | ev_at (w) -= mn_now; |
3315 | ev_at (w) -= mn_now; |
1924 | |
3316 | |
1925 | ev_stop (EV_A_ (W)w); |
3317 | ev_stop (EV_A_ (W)w); |
|
|
3318 | |
|
|
3319 | EV_FREQUENT_CHECK; |
1926 | } |
3320 | } |
1927 | |
3321 | |
1928 | void noinline |
3322 | void noinline |
1929 | ev_timer_again (EV_P_ ev_timer *w) |
3323 | ev_timer_again (EV_P_ ev_timer *w) |
1930 | { |
3324 | { |
|
|
3325 | EV_FREQUENT_CHECK; |
|
|
3326 | |
|
|
3327 | clear_pending (EV_A_ (W)w); |
|
|
3328 | |
1931 | if (ev_is_active (w)) |
3329 | if (ev_is_active (w)) |
1932 | { |
3330 | { |
1933 | if (w->repeat) |
3331 | if (w->repeat) |
1934 | { |
3332 | { |
1935 | ev_at (w) = mn_now + w->repeat; |
3333 | ev_at (w) = mn_now + w->repeat; |
|
|
3334 | ANHE_at_cache (timers [ev_active (w)]); |
1936 | adjustheap (timers, timercnt, ((W)w)->active); |
3335 | adjustheap (timers, timercnt, ev_active (w)); |
1937 | } |
3336 | } |
1938 | else |
3337 | else |
1939 | ev_timer_stop (EV_A_ w); |
3338 | ev_timer_stop (EV_A_ w); |
1940 | } |
3339 | } |
1941 | else if (w->repeat) |
3340 | else if (w->repeat) |
1942 | { |
3341 | { |
1943 | w->at = w->repeat; |
3342 | ev_at (w) = w->repeat; |
1944 | ev_timer_start (EV_A_ w); |
3343 | ev_timer_start (EV_A_ w); |
1945 | } |
3344 | } |
|
|
3345 | |
|
|
3346 | EV_FREQUENT_CHECK; |
|
|
3347 | } |
|
|
3348 | |
|
|
3349 | ev_tstamp |
|
|
3350 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
3351 | { |
|
|
3352 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1946 | } |
3353 | } |
1947 | |
3354 | |
1948 | #if EV_PERIODIC_ENABLE |
3355 | #if EV_PERIODIC_ENABLE |
1949 | void noinline |
3356 | void noinline |
1950 | ev_periodic_start (EV_P_ ev_periodic *w) |
3357 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
1954 | |
3361 | |
1955 | if (w->reschedule_cb) |
3362 | if (w->reschedule_cb) |
1956 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3363 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1957 | else if (w->interval) |
3364 | else if (w->interval) |
1958 | { |
3365 | { |
1959 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3366 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1960 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3367 | periodic_recalc (EV_A_ w); |
1961 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1962 | } |
3368 | } |
1963 | else |
3369 | else |
1964 | ev_at (w) = w->offset; |
3370 | ev_at (w) = w->offset; |
1965 | |
3371 | |
|
|
3372 | EV_FREQUENT_CHECK; |
|
|
3373 | |
|
|
3374 | ++periodiccnt; |
1966 | ev_start (EV_A_ (W)w, ++periodiccnt); |
3375 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1967 | array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); |
3376 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1968 | periodics [periodiccnt] = (WT)w; |
3377 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1969 | upheap (periodics, periodiccnt); |
3378 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
3379 | upheap (periodics, ev_active (w)); |
1970 | |
3380 | |
|
|
3381 | EV_FREQUENT_CHECK; |
|
|
3382 | |
1971 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
3383 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1972 | } |
3384 | } |
1973 | |
3385 | |
1974 | void noinline |
3386 | void noinline |
1975 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3387 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1976 | { |
3388 | { |
1977 | clear_pending (EV_A_ (W)w); |
3389 | clear_pending (EV_A_ (W)w); |
1978 | if (expect_false (!ev_is_active (w))) |
3390 | if (expect_false (!ev_is_active (w))) |
1979 | return; |
3391 | return; |
1980 | |
3392 | |
1981 | assert (("internal periodic heap corruption", periodics [((W)w)->active] == (WT)w)); |
3393 | EV_FREQUENT_CHECK; |
1982 | |
3394 | |
1983 | { |
3395 | { |
1984 | int active = ((W)w)->active; |
3396 | int active = ev_active (w); |
1985 | |
3397 | |
|
|
3398 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
3399 | |
|
|
3400 | --periodiccnt; |
|
|
3401 | |
1986 | if (expect_true (active < periodiccnt)) |
3402 | if (expect_true (active < periodiccnt + HEAP0)) |
1987 | { |
3403 | { |
1988 | periodics [active] = periodics [periodiccnt]; |
3404 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1989 | adjustheap (periodics, periodiccnt, active); |
3405 | adjustheap (periodics, periodiccnt, active); |
1990 | } |
3406 | } |
1991 | |
|
|
1992 | --periodiccnt; |
|
|
1993 | } |
3407 | } |
1994 | |
3408 | |
1995 | ev_stop (EV_A_ (W)w); |
3409 | ev_stop (EV_A_ (W)w); |
|
|
3410 | |
|
|
3411 | EV_FREQUENT_CHECK; |
1996 | } |
3412 | } |
1997 | |
3413 | |
1998 | void noinline |
3414 | void noinline |
1999 | ev_periodic_again (EV_P_ ev_periodic *w) |
3415 | ev_periodic_again (EV_P_ ev_periodic *w) |
2000 | { |
3416 | { |
… | |
… | |
2006 | |
3422 | |
2007 | #ifndef SA_RESTART |
3423 | #ifndef SA_RESTART |
2008 | # define SA_RESTART 0 |
3424 | # define SA_RESTART 0 |
2009 | #endif |
3425 | #endif |
2010 | |
3426 | |
|
|
3427 | #if EV_SIGNAL_ENABLE |
|
|
3428 | |
2011 | void noinline |
3429 | void noinline |
2012 | ev_signal_start (EV_P_ ev_signal *w) |
3430 | ev_signal_start (EV_P_ ev_signal *w) |
2013 | { |
3431 | { |
2014 | #if EV_MULTIPLICITY |
|
|
2015 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2016 | #endif |
|
|
2017 | if (expect_false (ev_is_active (w))) |
3432 | if (expect_false (ev_is_active (w))) |
2018 | return; |
3433 | return; |
2019 | |
3434 | |
2020 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3435 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2021 | |
3436 | |
2022 | evpipe_init (EV_A); |
3437 | #if EV_MULTIPLICITY |
|
|
3438 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3439 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2023 | |
3440 | |
|
|
3441 | signals [w->signum - 1].loop = EV_A; |
|
|
3442 | #endif |
|
|
3443 | |
|
|
3444 | EV_FREQUENT_CHECK; |
|
|
3445 | |
|
|
3446 | #if EV_USE_SIGNALFD |
|
|
3447 | if (sigfd == -2) |
2024 | { |
3448 | { |
2025 | #ifndef _WIN32 |
3449 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2026 | sigset_t full, prev; |
3450 | if (sigfd < 0 && errno == EINVAL) |
2027 | sigfillset (&full); |
3451 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2028 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2029 | #endif |
|
|
2030 | |
3452 | |
2031 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
3453 | if (sigfd >= 0) |
|
|
3454 | { |
|
|
3455 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2032 | |
3456 | |
2033 | #ifndef _WIN32 |
3457 | sigemptyset (&sigfd_set); |
2034 | sigprocmask (SIG_SETMASK, &prev, 0); |
3458 | |
2035 | #endif |
3459 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3460 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3461 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3462 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3463 | } |
2036 | } |
3464 | } |
|
|
3465 | |
|
|
3466 | if (sigfd >= 0) |
|
|
3467 | { |
|
|
3468 | /* TODO: check .head */ |
|
|
3469 | sigaddset (&sigfd_set, w->signum); |
|
|
3470 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3471 | |
|
|
3472 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3473 | } |
|
|
3474 | #endif |
2037 | |
3475 | |
2038 | ev_start (EV_A_ (W)w, 1); |
3476 | ev_start (EV_A_ (W)w, 1); |
2039 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3477 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2040 | |
3478 | |
2041 | if (!((WL)w)->next) |
3479 | if (!((WL)w)->next) |
|
|
3480 | # if EV_USE_SIGNALFD |
|
|
3481 | if (sigfd < 0) /*TODO*/ |
|
|
3482 | # endif |
2042 | { |
3483 | { |
2043 | #if _WIN32 |
3484 | # ifdef _WIN32 |
|
|
3485 | evpipe_init (EV_A); |
|
|
3486 | |
2044 | signal (w->signum, ev_sighandler); |
3487 | signal (w->signum, ev_sighandler); |
2045 | #else |
3488 | # else |
2046 | struct sigaction sa; |
3489 | struct sigaction sa; |
|
|
3490 | |
|
|
3491 | evpipe_init (EV_A); |
|
|
3492 | |
2047 | sa.sa_handler = ev_sighandler; |
3493 | sa.sa_handler = ev_sighandler; |
2048 | sigfillset (&sa.sa_mask); |
3494 | sigfillset (&sa.sa_mask); |
2049 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3495 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2050 | sigaction (w->signum, &sa, 0); |
3496 | sigaction (w->signum, &sa, 0); |
|
|
3497 | |
|
|
3498 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3499 | { |
|
|
3500 | sigemptyset (&sa.sa_mask); |
|
|
3501 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3502 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3503 | } |
2051 | #endif |
3504 | #endif |
2052 | } |
3505 | } |
|
|
3506 | |
|
|
3507 | EV_FREQUENT_CHECK; |
2053 | } |
3508 | } |
2054 | |
3509 | |
2055 | void noinline |
3510 | void noinline |
2056 | ev_signal_stop (EV_P_ ev_signal *w) |
3511 | ev_signal_stop (EV_P_ ev_signal *w) |
2057 | { |
3512 | { |
2058 | clear_pending (EV_A_ (W)w); |
3513 | clear_pending (EV_A_ (W)w); |
2059 | if (expect_false (!ev_is_active (w))) |
3514 | if (expect_false (!ev_is_active (w))) |
2060 | return; |
3515 | return; |
2061 | |
3516 | |
|
|
3517 | EV_FREQUENT_CHECK; |
|
|
3518 | |
2062 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3519 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2063 | ev_stop (EV_A_ (W)w); |
3520 | ev_stop (EV_A_ (W)w); |
2064 | |
3521 | |
2065 | if (!signals [w->signum - 1].head) |
3522 | if (!signals [w->signum - 1].head) |
|
|
3523 | { |
|
|
3524 | #if EV_MULTIPLICITY |
|
|
3525 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3526 | #endif |
|
|
3527 | #if EV_USE_SIGNALFD |
|
|
3528 | if (sigfd >= 0) |
|
|
3529 | { |
|
|
3530 | sigset_t ss; |
|
|
3531 | |
|
|
3532 | sigemptyset (&ss); |
|
|
3533 | sigaddset (&ss, w->signum); |
|
|
3534 | sigdelset (&sigfd_set, w->signum); |
|
|
3535 | |
|
|
3536 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3537 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3538 | } |
|
|
3539 | else |
|
|
3540 | #endif |
2066 | signal (w->signum, SIG_DFL); |
3541 | signal (w->signum, SIG_DFL); |
|
|
3542 | } |
|
|
3543 | |
|
|
3544 | EV_FREQUENT_CHECK; |
2067 | } |
3545 | } |
|
|
3546 | |
|
|
3547 | #endif |
|
|
3548 | |
|
|
3549 | #if EV_CHILD_ENABLE |
2068 | |
3550 | |
2069 | void |
3551 | void |
2070 | ev_child_start (EV_P_ ev_child *w) |
3552 | ev_child_start (EV_P_ ev_child *w) |
2071 | { |
3553 | { |
2072 | #if EV_MULTIPLICITY |
3554 | #if EV_MULTIPLICITY |
2073 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3555 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2074 | #endif |
3556 | #endif |
2075 | if (expect_false (ev_is_active (w))) |
3557 | if (expect_false (ev_is_active (w))) |
2076 | return; |
3558 | return; |
2077 | |
3559 | |
|
|
3560 | EV_FREQUENT_CHECK; |
|
|
3561 | |
2078 | ev_start (EV_A_ (W)w, 1); |
3562 | ev_start (EV_A_ (W)w, 1); |
2079 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3563 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3564 | |
|
|
3565 | EV_FREQUENT_CHECK; |
2080 | } |
3566 | } |
2081 | |
3567 | |
2082 | void |
3568 | void |
2083 | ev_child_stop (EV_P_ ev_child *w) |
3569 | ev_child_stop (EV_P_ ev_child *w) |
2084 | { |
3570 | { |
2085 | clear_pending (EV_A_ (W)w); |
3571 | clear_pending (EV_A_ (W)w); |
2086 | if (expect_false (!ev_is_active (w))) |
3572 | if (expect_false (!ev_is_active (w))) |
2087 | return; |
3573 | return; |
2088 | |
3574 | |
|
|
3575 | EV_FREQUENT_CHECK; |
|
|
3576 | |
2089 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3577 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2090 | ev_stop (EV_A_ (W)w); |
3578 | ev_stop (EV_A_ (W)w); |
|
|
3579 | |
|
|
3580 | EV_FREQUENT_CHECK; |
2091 | } |
3581 | } |
|
|
3582 | |
|
|
3583 | #endif |
2092 | |
3584 | |
2093 | #if EV_STAT_ENABLE |
3585 | #if EV_STAT_ENABLE |
2094 | |
3586 | |
2095 | # ifdef _WIN32 |
3587 | # ifdef _WIN32 |
2096 | # undef lstat |
3588 | # undef lstat |
2097 | # define lstat(a,b) _stati64 (a,b) |
3589 | # define lstat(a,b) _stati64 (a,b) |
2098 | # endif |
3590 | # endif |
2099 | |
3591 | |
2100 | #define DEF_STAT_INTERVAL 5.0074891 |
3592 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3593 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2101 | #define MIN_STAT_INTERVAL 0.1074891 |
3594 | #define MIN_STAT_INTERVAL 0.1074891 |
2102 | |
3595 | |
2103 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3596 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2104 | |
3597 | |
2105 | #if EV_USE_INOTIFY |
3598 | #if EV_USE_INOTIFY |
2106 | # define EV_INOTIFY_BUFSIZE 8192 |
3599 | |
|
|
3600 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3601 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2107 | |
3602 | |
2108 | static void noinline |
3603 | static void noinline |
2109 | infy_add (EV_P_ ev_stat *w) |
3604 | infy_add (EV_P_ ev_stat *w) |
2110 | { |
3605 | { |
2111 | 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); |
3606 | 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); |
2112 | |
3607 | |
2113 | if (w->wd < 0) |
3608 | if (w->wd >= 0) |
|
|
3609 | { |
|
|
3610 | struct statfs sfs; |
|
|
3611 | |
|
|
3612 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3613 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3614 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3615 | |
|
|
3616 | if (!fs_2625) |
|
|
3617 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3618 | else if (!statfs (w->path, &sfs) |
|
|
3619 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3620 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3621 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3622 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3623 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3624 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3625 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3626 | else |
|
|
3627 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2114 | { |
3628 | } |
2115 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3629 | else |
|
|
3630 | { |
|
|
3631 | /* can't use inotify, continue to stat */ |
|
|
3632 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2116 | |
3633 | |
2117 | /* monitor some parent directory for speedup hints */ |
3634 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3635 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3636 | /* but an efficiency issue only */ |
2118 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3637 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2119 | { |
3638 | { |
2120 | char path [4096]; |
3639 | char path [4096]; |
2121 | strcpy (path, w->path); |
3640 | strcpy (path, w->path); |
2122 | |
3641 | |
… | |
… | |
2125 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3644 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2126 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3645 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2127 | |
3646 | |
2128 | char *pend = strrchr (path, '/'); |
3647 | char *pend = strrchr (path, '/'); |
2129 | |
3648 | |
2130 | if (!pend) |
3649 | if (!pend || pend == path) |
2131 | break; /* whoops, no '/', complain to your admin */ |
3650 | break; |
2132 | |
3651 | |
2133 | *pend = 0; |
3652 | *pend = 0; |
2134 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3653 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2135 | } |
3654 | } |
2136 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3655 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2137 | } |
3656 | } |
2138 | } |
3657 | } |
2139 | else |
|
|
2140 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2141 | |
3658 | |
2142 | if (w->wd >= 0) |
3659 | if (w->wd >= 0) |
2143 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3660 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3661 | |
|
|
3662 | /* now re-arm timer, if required */ |
|
|
3663 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3664 | ev_timer_again (EV_A_ &w->timer); |
|
|
3665 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2144 | } |
3666 | } |
2145 | |
3667 | |
2146 | static void noinline |
3668 | static void noinline |
2147 | infy_del (EV_P_ ev_stat *w) |
3669 | infy_del (EV_P_ ev_stat *w) |
2148 | { |
3670 | { |
… | |
… | |
2151 | |
3673 | |
2152 | if (wd < 0) |
3674 | if (wd < 0) |
2153 | return; |
3675 | return; |
2154 | |
3676 | |
2155 | w->wd = -2; |
3677 | w->wd = -2; |
2156 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3678 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2157 | wlist_del (&fs_hash [slot].head, (WL)w); |
3679 | wlist_del (&fs_hash [slot].head, (WL)w); |
2158 | |
3680 | |
2159 | /* remove this watcher, if others are watching it, they will rearm */ |
3681 | /* remove this watcher, if others are watching it, they will rearm */ |
2160 | inotify_rm_watch (fs_fd, wd); |
3682 | inotify_rm_watch (fs_fd, wd); |
2161 | } |
3683 | } |
2162 | |
3684 | |
2163 | static void noinline |
3685 | static void noinline |
2164 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3686 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2165 | { |
3687 | { |
2166 | if (slot < 0) |
3688 | if (slot < 0) |
2167 | /* overflow, need to check for all hahs slots */ |
3689 | /* overflow, need to check for all hash slots */ |
2168 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3690 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2169 | infy_wd (EV_A_ slot, wd, ev); |
3691 | infy_wd (EV_A_ slot, wd, ev); |
2170 | else |
3692 | else |
2171 | { |
3693 | { |
2172 | WL w_; |
3694 | WL w_; |
2173 | |
3695 | |
2174 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3696 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2175 | { |
3697 | { |
2176 | ev_stat *w = (ev_stat *)w_; |
3698 | ev_stat *w = (ev_stat *)w_; |
2177 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3699 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2178 | |
3700 | |
2179 | if (w->wd == wd || wd == -1) |
3701 | if (w->wd == wd || wd == -1) |
2180 | { |
3702 | { |
2181 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3703 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2182 | { |
3704 | { |
|
|
3705 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2183 | w->wd = -1; |
3706 | w->wd = -1; |
2184 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3707 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2185 | } |
3708 | } |
2186 | |
3709 | |
2187 | stat_timer_cb (EV_A_ &w->timer, 0); |
3710 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2192 | |
3715 | |
2193 | static void |
3716 | static void |
2194 | infy_cb (EV_P_ ev_io *w, int revents) |
3717 | infy_cb (EV_P_ ev_io *w, int revents) |
2195 | { |
3718 | { |
2196 | char buf [EV_INOTIFY_BUFSIZE]; |
3719 | char buf [EV_INOTIFY_BUFSIZE]; |
2197 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2198 | int ofs; |
3720 | int ofs; |
2199 | int len = read (fs_fd, buf, sizeof (buf)); |
3721 | int len = read (fs_fd, buf, sizeof (buf)); |
2200 | |
3722 | |
2201 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3723 | for (ofs = 0; ofs < len; ) |
|
|
3724 | { |
|
|
3725 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2202 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3726 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3727 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3728 | } |
2203 | } |
3729 | } |
2204 | |
3730 | |
2205 | void inline_size |
3731 | inline_size void ecb_cold |
|
|
3732 | ev_check_2625 (EV_P) |
|
|
3733 | { |
|
|
3734 | /* kernels < 2.6.25 are borked |
|
|
3735 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3736 | */ |
|
|
3737 | if (ev_linux_version () < 0x020619) |
|
|
3738 | return; |
|
|
3739 | |
|
|
3740 | fs_2625 = 1; |
|
|
3741 | } |
|
|
3742 | |
|
|
3743 | inline_size int |
|
|
3744 | infy_newfd (void) |
|
|
3745 | { |
|
|
3746 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3747 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3748 | if (fd >= 0) |
|
|
3749 | return fd; |
|
|
3750 | #endif |
|
|
3751 | return inotify_init (); |
|
|
3752 | } |
|
|
3753 | |
|
|
3754 | inline_size void |
2206 | infy_init (EV_P) |
3755 | infy_init (EV_P) |
2207 | { |
3756 | { |
2208 | if (fs_fd != -2) |
3757 | if (fs_fd != -2) |
2209 | return; |
3758 | return; |
2210 | |
3759 | |
|
|
3760 | fs_fd = -1; |
|
|
3761 | |
|
|
3762 | ev_check_2625 (EV_A); |
|
|
3763 | |
2211 | fs_fd = inotify_init (); |
3764 | fs_fd = infy_newfd (); |
2212 | |
3765 | |
2213 | if (fs_fd >= 0) |
3766 | if (fs_fd >= 0) |
2214 | { |
3767 | { |
|
|
3768 | fd_intern (fs_fd); |
2215 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3769 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2216 | ev_set_priority (&fs_w, EV_MAXPRI); |
3770 | ev_set_priority (&fs_w, EV_MAXPRI); |
2217 | ev_io_start (EV_A_ &fs_w); |
3771 | ev_io_start (EV_A_ &fs_w); |
|
|
3772 | ev_unref (EV_A); |
2218 | } |
3773 | } |
2219 | } |
3774 | } |
2220 | |
3775 | |
2221 | void inline_size |
3776 | inline_size void |
2222 | infy_fork (EV_P) |
3777 | infy_fork (EV_P) |
2223 | { |
3778 | { |
2224 | int slot; |
3779 | int slot; |
2225 | |
3780 | |
2226 | if (fs_fd < 0) |
3781 | if (fs_fd < 0) |
2227 | return; |
3782 | return; |
2228 | |
3783 | |
|
|
3784 | ev_ref (EV_A); |
|
|
3785 | ev_io_stop (EV_A_ &fs_w); |
2229 | close (fs_fd); |
3786 | close (fs_fd); |
2230 | fs_fd = inotify_init (); |
3787 | fs_fd = infy_newfd (); |
2231 | |
3788 | |
|
|
3789 | if (fs_fd >= 0) |
|
|
3790 | { |
|
|
3791 | fd_intern (fs_fd); |
|
|
3792 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3793 | ev_io_start (EV_A_ &fs_w); |
|
|
3794 | ev_unref (EV_A); |
|
|
3795 | } |
|
|
3796 | |
2232 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3797 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2233 | { |
3798 | { |
2234 | WL w_ = fs_hash [slot].head; |
3799 | WL w_ = fs_hash [slot].head; |
2235 | fs_hash [slot].head = 0; |
3800 | fs_hash [slot].head = 0; |
2236 | |
3801 | |
2237 | while (w_) |
3802 | while (w_) |
… | |
… | |
2242 | w->wd = -1; |
3807 | w->wd = -1; |
2243 | |
3808 | |
2244 | if (fs_fd >= 0) |
3809 | if (fs_fd >= 0) |
2245 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3810 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2246 | else |
3811 | else |
|
|
3812 | { |
|
|
3813 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3814 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2247 | ev_timer_start (EV_A_ &w->timer); |
3815 | ev_timer_again (EV_A_ &w->timer); |
|
|
3816 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3817 | } |
2248 | } |
3818 | } |
2249 | |
|
|
2250 | } |
3819 | } |
2251 | } |
3820 | } |
2252 | |
3821 | |
|
|
3822 | #endif |
|
|
3823 | |
|
|
3824 | #ifdef _WIN32 |
|
|
3825 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3826 | #else |
|
|
3827 | # define EV_LSTAT(p,b) lstat (p, b) |
2253 | #endif |
3828 | #endif |
2254 | |
3829 | |
2255 | void |
3830 | void |
2256 | ev_stat_stat (EV_P_ ev_stat *w) |
3831 | ev_stat_stat (EV_P_ ev_stat *w) |
2257 | { |
3832 | { |
… | |
… | |
2264 | static void noinline |
3839 | static void noinline |
2265 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3840 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2266 | { |
3841 | { |
2267 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3842 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2268 | |
3843 | |
2269 | /* we copy this here each the time so that */ |
3844 | ev_statdata prev = w->attr; |
2270 | /* prev has the old value when the callback gets invoked */ |
|
|
2271 | w->prev = w->attr; |
|
|
2272 | ev_stat_stat (EV_A_ w); |
3845 | ev_stat_stat (EV_A_ w); |
2273 | |
3846 | |
2274 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3847 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2275 | if ( |
3848 | if ( |
2276 | w->prev.st_dev != w->attr.st_dev |
3849 | prev.st_dev != w->attr.st_dev |
2277 | || w->prev.st_ino != w->attr.st_ino |
3850 | || prev.st_ino != w->attr.st_ino |
2278 | || w->prev.st_mode != w->attr.st_mode |
3851 | || prev.st_mode != w->attr.st_mode |
2279 | || w->prev.st_nlink != w->attr.st_nlink |
3852 | || prev.st_nlink != w->attr.st_nlink |
2280 | || w->prev.st_uid != w->attr.st_uid |
3853 | || prev.st_uid != w->attr.st_uid |
2281 | || w->prev.st_gid != w->attr.st_gid |
3854 | || prev.st_gid != w->attr.st_gid |
2282 | || w->prev.st_rdev != w->attr.st_rdev |
3855 | || prev.st_rdev != w->attr.st_rdev |
2283 | || w->prev.st_size != w->attr.st_size |
3856 | || prev.st_size != w->attr.st_size |
2284 | || w->prev.st_atime != w->attr.st_atime |
3857 | || prev.st_atime != w->attr.st_atime |
2285 | || w->prev.st_mtime != w->attr.st_mtime |
3858 | || prev.st_mtime != w->attr.st_mtime |
2286 | || w->prev.st_ctime != w->attr.st_ctime |
3859 | || prev.st_ctime != w->attr.st_ctime |
2287 | ) { |
3860 | ) { |
|
|
3861 | /* we only update w->prev on actual differences */ |
|
|
3862 | /* in case we test more often than invoke the callback, */ |
|
|
3863 | /* to ensure that prev is always different to attr */ |
|
|
3864 | w->prev = prev; |
|
|
3865 | |
2288 | #if EV_USE_INOTIFY |
3866 | #if EV_USE_INOTIFY |
|
|
3867 | if (fs_fd >= 0) |
|
|
3868 | { |
2289 | infy_del (EV_A_ w); |
3869 | infy_del (EV_A_ w); |
2290 | infy_add (EV_A_ w); |
3870 | infy_add (EV_A_ w); |
2291 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3871 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3872 | } |
2292 | #endif |
3873 | #endif |
2293 | |
3874 | |
2294 | ev_feed_event (EV_A_ w, EV_STAT); |
3875 | ev_feed_event (EV_A_ w, EV_STAT); |
2295 | } |
3876 | } |
2296 | } |
3877 | } |
… | |
… | |
2299 | ev_stat_start (EV_P_ ev_stat *w) |
3880 | ev_stat_start (EV_P_ ev_stat *w) |
2300 | { |
3881 | { |
2301 | if (expect_false (ev_is_active (w))) |
3882 | if (expect_false (ev_is_active (w))) |
2302 | return; |
3883 | return; |
2303 | |
3884 | |
2304 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2305 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2306 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2307 | |
|
|
2308 | ev_stat_stat (EV_A_ w); |
3885 | ev_stat_stat (EV_A_ w); |
2309 | |
3886 | |
|
|
3887 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2310 | if (w->interval < MIN_STAT_INTERVAL) |
3888 | w->interval = MIN_STAT_INTERVAL; |
2311 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2312 | |
3889 | |
2313 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3890 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2314 | ev_set_priority (&w->timer, ev_priority (w)); |
3891 | ev_set_priority (&w->timer, ev_priority (w)); |
2315 | |
3892 | |
2316 | #if EV_USE_INOTIFY |
3893 | #if EV_USE_INOTIFY |
2317 | infy_init (EV_A); |
3894 | infy_init (EV_A); |
2318 | |
3895 | |
2319 | if (fs_fd >= 0) |
3896 | if (fs_fd >= 0) |
2320 | infy_add (EV_A_ w); |
3897 | infy_add (EV_A_ w); |
2321 | else |
3898 | else |
2322 | #endif |
3899 | #endif |
|
|
3900 | { |
2323 | ev_timer_start (EV_A_ &w->timer); |
3901 | ev_timer_again (EV_A_ &w->timer); |
|
|
3902 | ev_unref (EV_A); |
|
|
3903 | } |
2324 | |
3904 | |
2325 | ev_start (EV_A_ (W)w, 1); |
3905 | ev_start (EV_A_ (W)w, 1); |
|
|
3906 | |
|
|
3907 | EV_FREQUENT_CHECK; |
2326 | } |
3908 | } |
2327 | |
3909 | |
2328 | void |
3910 | void |
2329 | ev_stat_stop (EV_P_ ev_stat *w) |
3911 | ev_stat_stop (EV_P_ ev_stat *w) |
2330 | { |
3912 | { |
2331 | clear_pending (EV_A_ (W)w); |
3913 | clear_pending (EV_A_ (W)w); |
2332 | if (expect_false (!ev_is_active (w))) |
3914 | if (expect_false (!ev_is_active (w))) |
2333 | return; |
3915 | return; |
2334 | |
3916 | |
|
|
3917 | EV_FREQUENT_CHECK; |
|
|
3918 | |
2335 | #if EV_USE_INOTIFY |
3919 | #if EV_USE_INOTIFY |
2336 | infy_del (EV_A_ w); |
3920 | infy_del (EV_A_ w); |
2337 | #endif |
3921 | #endif |
|
|
3922 | |
|
|
3923 | if (ev_is_active (&w->timer)) |
|
|
3924 | { |
|
|
3925 | ev_ref (EV_A); |
2338 | ev_timer_stop (EV_A_ &w->timer); |
3926 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3927 | } |
2339 | |
3928 | |
2340 | ev_stop (EV_A_ (W)w); |
3929 | ev_stop (EV_A_ (W)w); |
|
|
3930 | |
|
|
3931 | EV_FREQUENT_CHECK; |
2341 | } |
3932 | } |
2342 | #endif |
3933 | #endif |
2343 | |
3934 | |
2344 | #if EV_IDLE_ENABLE |
3935 | #if EV_IDLE_ENABLE |
2345 | void |
3936 | void |
… | |
… | |
2348 | if (expect_false (ev_is_active (w))) |
3939 | if (expect_false (ev_is_active (w))) |
2349 | return; |
3940 | return; |
2350 | |
3941 | |
2351 | pri_adjust (EV_A_ (W)w); |
3942 | pri_adjust (EV_A_ (W)w); |
2352 | |
3943 | |
|
|
3944 | EV_FREQUENT_CHECK; |
|
|
3945 | |
2353 | { |
3946 | { |
2354 | int active = ++idlecnt [ABSPRI (w)]; |
3947 | int active = ++idlecnt [ABSPRI (w)]; |
2355 | |
3948 | |
2356 | ++idleall; |
3949 | ++idleall; |
2357 | ev_start (EV_A_ (W)w, active); |
3950 | ev_start (EV_A_ (W)w, active); |
2358 | |
3951 | |
2359 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3952 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2360 | idles [ABSPRI (w)][active - 1] = w; |
3953 | idles [ABSPRI (w)][active - 1] = w; |
2361 | } |
3954 | } |
|
|
3955 | |
|
|
3956 | EV_FREQUENT_CHECK; |
2362 | } |
3957 | } |
2363 | |
3958 | |
2364 | void |
3959 | void |
2365 | ev_idle_stop (EV_P_ ev_idle *w) |
3960 | ev_idle_stop (EV_P_ ev_idle *w) |
2366 | { |
3961 | { |
2367 | clear_pending (EV_A_ (W)w); |
3962 | clear_pending (EV_A_ (W)w); |
2368 | if (expect_false (!ev_is_active (w))) |
3963 | if (expect_false (!ev_is_active (w))) |
2369 | return; |
3964 | return; |
2370 | |
3965 | |
|
|
3966 | EV_FREQUENT_CHECK; |
|
|
3967 | |
2371 | { |
3968 | { |
2372 | int active = ((W)w)->active; |
3969 | int active = ev_active (w); |
2373 | |
3970 | |
2374 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3971 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2375 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3972 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2376 | |
3973 | |
2377 | ev_stop (EV_A_ (W)w); |
3974 | ev_stop (EV_A_ (W)w); |
2378 | --idleall; |
3975 | --idleall; |
2379 | } |
3976 | } |
2380 | } |
|
|
2381 | #endif |
|
|
2382 | |
3977 | |
|
|
3978 | EV_FREQUENT_CHECK; |
|
|
3979 | } |
|
|
3980 | #endif |
|
|
3981 | |
|
|
3982 | #if EV_PREPARE_ENABLE |
2383 | void |
3983 | void |
2384 | ev_prepare_start (EV_P_ ev_prepare *w) |
3984 | ev_prepare_start (EV_P_ ev_prepare *w) |
2385 | { |
3985 | { |
2386 | if (expect_false (ev_is_active (w))) |
3986 | if (expect_false (ev_is_active (w))) |
2387 | return; |
3987 | return; |
|
|
3988 | |
|
|
3989 | EV_FREQUENT_CHECK; |
2388 | |
3990 | |
2389 | ev_start (EV_A_ (W)w, ++preparecnt); |
3991 | ev_start (EV_A_ (W)w, ++preparecnt); |
2390 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3992 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2391 | prepares [preparecnt - 1] = w; |
3993 | prepares [preparecnt - 1] = w; |
|
|
3994 | |
|
|
3995 | EV_FREQUENT_CHECK; |
2392 | } |
3996 | } |
2393 | |
3997 | |
2394 | void |
3998 | void |
2395 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3999 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2396 | { |
4000 | { |
2397 | clear_pending (EV_A_ (W)w); |
4001 | clear_pending (EV_A_ (W)w); |
2398 | if (expect_false (!ev_is_active (w))) |
4002 | if (expect_false (!ev_is_active (w))) |
2399 | return; |
4003 | return; |
2400 | |
4004 | |
|
|
4005 | EV_FREQUENT_CHECK; |
|
|
4006 | |
2401 | { |
4007 | { |
2402 | int active = ((W)w)->active; |
4008 | int active = ev_active (w); |
|
|
4009 | |
2403 | prepares [active - 1] = prepares [--preparecnt]; |
4010 | prepares [active - 1] = prepares [--preparecnt]; |
2404 | ((W)prepares [active - 1])->active = active; |
4011 | ev_active (prepares [active - 1]) = active; |
2405 | } |
4012 | } |
2406 | |
4013 | |
2407 | ev_stop (EV_A_ (W)w); |
4014 | ev_stop (EV_A_ (W)w); |
2408 | } |
|
|
2409 | |
4015 | |
|
|
4016 | EV_FREQUENT_CHECK; |
|
|
4017 | } |
|
|
4018 | #endif |
|
|
4019 | |
|
|
4020 | #if EV_CHECK_ENABLE |
2410 | void |
4021 | void |
2411 | ev_check_start (EV_P_ ev_check *w) |
4022 | ev_check_start (EV_P_ ev_check *w) |
2412 | { |
4023 | { |
2413 | if (expect_false (ev_is_active (w))) |
4024 | if (expect_false (ev_is_active (w))) |
2414 | return; |
4025 | return; |
|
|
4026 | |
|
|
4027 | EV_FREQUENT_CHECK; |
2415 | |
4028 | |
2416 | ev_start (EV_A_ (W)w, ++checkcnt); |
4029 | ev_start (EV_A_ (W)w, ++checkcnt); |
2417 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4030 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2418 | checks [checkcnt - 1] = w; |
4031 | checks [checkcnt - 1] = w; |
|
|
4032 | |
|
|
4033 | EV_FREQUENT_CHECK; |
2419 | } |
4034 | } |
2420 | |
4035 | |
2421 | void |
4036 | void |
2422 | ev_check_stop (EV_P_ ev_check *w) |
4037 | ev_check_stop (EV_P_ ev_check *w) |
2423 | { |
4038 | { |
2424 | clear_pending (EV_A_ (W)w); |
4039 | clear_pending (EV_A_ (W)w); |
2425 | if (expect_false (!ev_is_active (w))) |
4040 | if (expect_false (!ev_is_active (w))) |
2426 | return; |
4041 | return; |
2427 | |
4042 | |
|
|
4043 | EV_FREQUENT_CHECK; |
|
|
4044 | |
2428 | { |
4045 | { |
2429 | int active = ((W)w)->active; |
4046 | int active = ev_active (w); |
|
|
4047 | |
2430 | checks [active - 1] = checks [--checkcnt]; |
4048 | checks [active - 1] = checks [--checkcnt]; |
2431 | ((W)checks [active - 1])->active = active; |
4049 | ev_active (checks [active - 1]) = active; |
2432 | } |
4050 | } |
2433 | |
4051 | |
2434 | ev_stop (EV_A_ (W)w); |
4052 | ev_stop (EV_A_ (W)w); |
|
|
4053 | |
|
|
4054 | EV_FREQUENT_CHECK; |
2435 | } |
4055 | } |
|
|
4056 | #endif |
2436 | |
4057 | |
2437 | #if EV_EMBED_ENABLE |
4058 | #if EV_EMBED_ENABLE |
2438 | void noinline |
4059 | void noinline |
2439 | ev_embed_sweep (EV_P_ ev_embed *w) |
4060 | ev_embed_sweep (EV_P_ ev_embed *w) |
2440 | { |
4061 | { |
2441 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4062 | ev_run (w->other, EVRUN_NOWAIT); |
2442 | } |
4063 | } |
2443 | |
4064 | |
2444 | static void |
4065 | static void |
2445 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4066 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2446 | { |
4067 | { |
2447 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4068 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2448 | |
4069 | |
2449 | if (ev_cb (w)) |
4070 | if (ev_cb (w)) |
2450 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4071 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2451 | else |
4072 | else |
2452 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4073 | ev_run (w->other, EVRUN_NOWAIT); |
2453 | } |
4074 | } |
2454 | |
4075 | |
2455 | static void |
4076 | static void |
2456 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4077 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2457 | { |
4078 | { |
2458 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4079 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2459 | |
4080 | |
2460 | { |
4081 | { |
2461 | struct ev_loop *loop = w->other; |
4082 | EV_P = w->other; |
2462 | |
4083 | |
2463 | while (fdchangecnt) |
4084 | while (fdchangecnt) |
2464 | { |
4085 | { |
2465 | fd_reify (EV_A); |
4086 | fd_reify (EV_A); |
2466 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4087 | ev_run (EV_A_ EVRUN_NOWAIT); |
2467 | } |
4088 | } |
2468 | } |
4089 | } |
|
|
4090 | } |
|
|
4091 | |
|
|
4092 | static void |
|
|
4093 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
4094 | { |
|
|
4095 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
4096 | |
|
|
4097 | ev_embed_stop (EV_A_ w); |
|
|
4098 | |
|
|
4099 | { |
|
|
4100 | EV_P = w->other; |
|
|
4101 | |
|
|
4102 | ev_loop_fork (EV_A); |
|
|
4103 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4104 | } |
|
|
4105 | |
|
|
4106 | ev_embed_start (EV_A_ w); |
2469 | } |
4107 | } |
2470 | |
4108 | |
2471 | #if 0 |
4109 | #if 0 |
2472 | static void |
4110 | static void |
2473 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4111 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2481 | { |
4119 | { |
2482 | if (expect_false (ev_is_active (w))) |
4120 | if (expect_false (ev_is_active (w))) |
2483 | return; |
4121 | return; |
2484 | |
4122 | |
2485 | { |
4123 | { |
2486 | struct ev_loop *loop = w->other; |
4124 | EV_P = w->other; |
2487 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4125 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2488 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4126 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2489 | } |
4127 | } |
|
|
4128 | |
|
|
4129 | EV_FREQUENT_CHECK; |
2490 | |
4130 | |
2491 | ev_set_priority (&w->io, ev_priority (w)); |
4131 | ev_set_priority (&w->io, ev_priority (w)); |
2492 | ev_io_start (EV_A_ &w->io); |
4132 | ev_io_start (EV_A_ &w->io); |
2493 | |
4133 | |
2494 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4134 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2495 | ev_set_priority (&w->prepare, EV_MINPRI); |
4135 | ev_set_priority (&w->prepare, EV_MINPRI); |
2496 | ev_prepare_start (EV_A_ &w->prepare); |
4136 | ev_prepare_start (EV_A_ &w->prepare); |
2497 | |
4137 | |
|
|
4138 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
4139 | ev_fork_start (EV_A_ &w->fork); |
|
|
4140 | |
2498 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4141 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2499 | |
4142 | |
2500 | ev_start (EV_A_ (W)w, 1); |
4143 | ev_start (EV_A_ (W)w, 1); |
|
|
4144 | |
|
|
4145 | EV_FREQUENT_CHECK; |
2501 | } |
4146 | } |
2502 | |
4147 | |
2503 | void |
4148 | void |
2504 | ev_embed_stop (EV_P_ ev_embed *w) |
4149 | ev_embed_stop (EV_P_ ev_embed *w) |
2505 | { |
4150 | { |
2506 | clear_pending (EV_A_ (W)w); |
4151 | clear_pending (EV_A_ (W)w); |
2507 | if (expect_false (!ev_is_active (w))) |
4152 | if (expect_false (!ev_is_active (w))) |
2508 | return; |
4153 | return; |
2509 | |
4154 | |
|
|
4155 | EV_FREQUENT_CHECK; |
|
|
4156 | |
2510 | ev_io_stop (EV_A_ &w->io); |
4157 | ev_io_stop (EV_A_ &w->io); |
2511 | ev_prepare_stop (EV_A_ &w->prepare); |
4158 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
4159 | ev_fork_stop (EV_A_ &w->fork); |
2512 | |
4160 | |
2513 | ev_stop (EV_A_ (W)w); |
4161 | ev_stop (EV_A_ (W)w); |
|
|
4162 | |
|
|
4163 | EV_FREQUENT_CHECK; |
2514 | } |
4164 | } |
2515 | #endif |
4165 | #endif |
2516 | |
4166 | |
2517 | #if EV_FORK_ENABLE |
4167 | #if EV_FORK_ENABLE |
2518 | void |
4168 | void |
2519 | ev_fork_start (EV_P_ ev_fork *w) |
4169 | ev_fork_start (EV_P_ ev_fork *w) |
2520 | { |
4170 | { |
2521 | if (expect_false (ev_is_active (w))) |
4171 | if (expect_false (ev_is_active (w))) |
2522 | return; |
4172 | return; |
2523 | |
4173 | |
|
|
4174 | EV_FREQUENT_CHECK; |
|
|
4175 | |
2524 | ev_start (EV_A_ (W)w, ++forkcnt); |
4176 | ev_start (EV_A_ (W)w, ++forkcnt); |
2525 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4177 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2526 | forks [forkcnt - 1] = w; |
4178 | forks [forkcnt - 1] = w; |
|
|
4179 | |
|
|
4180 | EV_FREQUENT_CHECK; |
2527 | } |
4181 | } |
2528 | |
4182 | |
2529 | void |
4183 | void |
2530 | ev_fork_stop (EV_P_ ev_fork *w) |
4184 | ev_fork_stop (EV_P_ ev_fork *w) |
2531 | { |
4185 | { |
2532 | clear_pending (EV_A_ (W)w); |
4186 | clear_pending (EV_A_ (W)w); |
2533 | if (expect_false (!ev_is_active (w))) |
4187 | if (expect_false (!ev_is_active (w))) |
2534 | return; |
4188 | return; |
2535 | |
4189 | |
|
|
4190 | EV_FREQUENT_CHECK; |
|
|
4191 | |
2536 | { |
4192 | { |
2537 | int active = ((W)w)->active; |
4193 | int active = ev_active (w); |
|
|
4194 | |
2538 | forks [active - 1] = forks [--forkcnt]; |
4195 | forks [active - 1] = forks [--forkcnt]; |
2539 | ((W)forks [active - 1])->active = active; |
4196 | ev_active (forks [active - 1]) = active; |
2540 | } |
4197 | } |
2541 | |
4198 | |
2542 | ev_stop (EV_A_ (W)w); |
4199 | ev_stop (EV_A_ (W)w); |
|
|
4200 | |
|
|
4201 | EV_FREQUENT_CHECK; |
|
|
4202 | } |
|
|
4203 | #endif |
|
|
4204 | |
|
|
4205 | #if EV_CLEANUP_ENABLE |
|
|
4206 | void |
|
|
4207 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
4208 | { |
|
|
4209 | if (expect_false (ev_is_active (w))) |
|
|
4210 | return; |
|
|
4211 | |
|
|
4212 | EV_FREQUENT_CHECK; |
|
|
4213 | |
|
|
4214 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4215 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4216 | cleanups [cleanupcnt - 1] = w; |
|
|
4217 | |
|
|
4218 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4219 | ev_unref (EV_A); |
|
|
4220 | EV_FREQUENT_CHECK; |
|
|
4221 | } |
|
|
4222 | |
|
|
4223 | void |
|
|
4224 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
4225 | { |
|
|
4226 | clear_pending (EV_A_ (W)w); |
|
|
4227 | if (expect_false (!ev_is_active (w))) |
|
|
4228 | return; |
|
|
4229 | |
|
|
4230 | EV_FREQUENT_CHECK; |
|
|
4231 | ev_ref (EV_A); |
|
|
4232 | |
|
|
4233 | { |
|
|
4234 | int active = ev_active (w); |
|
|
4235 | |
|
|
4236 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4237 | ev_active (cleanups [active - 1]) = active; |
|
|
4238 | } |
|
|
4239 | |
|
|
4240 | ev_stop (EV_A_ (W)w); |
|
|
4241 | |
|
|
4242 | EV_FREQUENT_CHECK; |
2543 | } |
4243 | } |
2544 | #endif |
4244 | #endif |
2545 | |
4245 | |
2546 | #if EV_ASYNC_ENABLE |
4246 | #if EV_ASYNC_ENABLE |
2547 | void |
4247 | void |
2548 | ev_async_start (EV_P_ ev_async *w) |
4248 | ev_async_start (EV_P_ ev_async *w) |
2549 | { |
4249 | { |
2550 | if (expect_false (ev_is_active (w))) |
4250 | if (expect_false (ev_is_active (w))) |
2551 | return; |
4251 | return; |
2552 | |
4252 | |
|
|
4253 | w->sent = 0; |
|
|
4254 | |
2553 | evpipe_init (EV_A); |
4255 | evpipe_init (EV_A); |
|
|
4256 | |
|
|
4257 | EV_FREQUENT_CHECK; |
2554 | |
4258 | |
2555 | ev_start (EV_A_ (W)w, ++asynccnt); |
4259 | ev_start (EV_A_ (W)w, ++asynccnt); |
2556 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4260 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2557 | asyncs [asynccnt - 1] = w; |
4261 | asyncs [asynccnt - 1] = w; |
|
|
4262 | |
|
|
4263 | EV_FREQUENT_CHECK; |
2558 | } |
4264 | } |
2559 | |
4265 | |
2560 | void |
4266 | void |
2561 | ev_async_stop (EV_P_ ev_async *w) |
4267 | ev_async_stop (EV_P_ ev_async *w) |
2562 | { |
4268 | { |
2563 | clear_pending (EV_A_ (W)w); |
4269 | clear_pending (EV_A_ (W)w); |
2564 | if (expect_false (!ev_is_active (w))) |
4270 | if (expect_false (!ev_is_active (w))) |
2565 | return; |
4271 | return; |
2566 | |
4272 | |
|
|
4273 | EV_FREQUENT_CHECK; |
|
|
4274 | |
2567 | { |
4275 | { |
2568 | int active = ((W)w)->active; |
4276 | int active = ev_active (w); |
|
|
4277 | |
2569 | asyncs [active - 1] = asyncs [--asynccnt]; |
4278 | asyncs [active - 1] = asyncs [--asynccnt]; |
2570 | ((W)asyncs [active - 1])->active = active; |
4279 | ev_active (asyncs [active - 1]) = active; |
2571 | } |
4280 | } |
2572 | |
4281 | |
2573 | ev_stop (EV_A_ (W)w); |
4282 | ev_stop (EV_A_ (W)w); |
|
|
4283 | |
|
|
4284 | EV_FREQUENT_CHECK; |
2574 | } |
4285 | } |
2575 | |
4286 | |
2576 | void |
4287 | void |
2577 | ev_async_send (EV_P_ ev_async *w) |
4288 | ev_async_send (EV_P_ ev_async *w) |
2578 | { |
4289 | { |
2579 | w->sent = 1; |
4290 | w->sent = 1; |
2580 | evpipe_write (EV_A_ &gotasync); |
4291 | evpipe_write (EV_A_ &async_pending); |
2581 | } |
4292 | } |
2582 | #endif |
4293 | #endif |
2583 | |
4294 | |
2584 | /*****************************************************************************/ |
4295 | /*****************************************************************************/ |
2585 | |
4296 | |
… | |
… | |
2595 | once_cb (EV_P_ struct ev_once *once, int revents) |
4306 | once_cb (EV_P_ struct ev_once *once, int revents) |
2596 | { |
4307 | { |
2597 | void (*cb)(int revents, void *arg) = once->cb; |
4308 | void (*cb)(int revents, void *arg) = once->cb; |
2598 | void *arg = once->arg; |
4309 | void *arg = once->arg; |
2599 | |
4310 | |
2600 | ev_io_stop (EV_A_ &once->io); |
4311 | ev_io_stop (EV_A_ &once->io); |
2601 | ev_timer_stop (EV_A_ &once->to); |
4312 | ev_timer_stop (EV_A_ &once->to); |
2602 | ev_free (once); |
4313 | ev_free (once); |
2603 | |
4314 | |
2604 | cb (revents, arg); |
4315 | cb (revents, arg); |
2605 | } |
4316 | } |
2606 | |
4317 | |
2607 | static void |
4318 | static void |
2608 | once_cb_io (EV_P_ ev_io *w, int revents) |
4319 | once_cb_io (EV_P_ ev_io *w, int revents) |
2609 | { |
4320 | { |
2610 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
4321 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
4322 | |
|
|
4323 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2611 | } |
4324 | } |
2612 | |
4325 | |
2613 | static void |
4326 | static void |
2614 | once_cb_to (EV_P_ ev_timer *w, int revents) |
4327 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2615 | { |
4328 | { |
2616 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
4329 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
4330 | |
|
|
4331 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2617 | } |
4332 | } |
2618 | |
4333 | |
2619 | void |
4334 | void |
2620 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4335 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2621 | { |
4336 | { |
2622 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4337 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2623 | |
4338 | |
2624 | if (expect_false (!once)) |
4339 | if (expect_false (!once)) |
2625 | { |
4340 | { |
2626 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4341 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2627 | return; |
4342 | return; |
2628 | } |
4343 | } |
2629 | |
4344 | |
2630 | once->cb = cb; |
4345 | once->cb = cb; |
2631 | once->arg = arg; |
4346 | once->arg = arg; |
… | |
… | |
2643 | ev_timer_set (&once->to, timeout, 0.); |
4358 | ev_timer_set (&once->to, timeout, 0.); |
2644 | ev_timer_start (EV_A_ &once->to); |
4359 | ev_timer_start (EV_A_ &once->to); |
2645 | } |
4360 | } |
2646 | } |
4361 | } |
2647 | |
4362 | |
|
|
4363 | /*****************************************************************************/ |
|
|
4364 | |
|
|
4365 | #if EV_WALK_ENABLE |
|
|
4366 | void ecb_cold |
|
|
4367 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
4368 | { |
|
|
4369 | int i, j; |
|
|
4370 | ev_watcher_list *wl, *wn; |
|
|
4371 | |
|
|
4372 | if (types & (EV_IO | EV_EMBED)) |
|
|
4373 | for (i = 0; i < anfdmax; ++i) |
|
|
4374 | for (wl = anfds [i].head; wl; ) |
|
|
4375 | { |
|
|
4376 | wn = wl->next; |
|
|
4377 | |
|
|
4378 | #if EV_EMBED_ENABLE |
|
|
4379 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
4380 | { |
|
|
4381 | if (types & EV_EMBED) |
|
|
4382 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
4383 | } |
|
|
4384 | else |
|
|
4385 | #endif |
|
|
4386 | #if EV_USE_INOTIFY |
|
|
4387 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4388 | ; |
|
|
4389 | else |
|
|
4390 | #endif |
|
|
4391 | if ((ev_io *)wl != &pipe_w) |
|
|
4392 | if (types & EV_IO) |
|
|
4393 | cb (EV_A_ EV_IO, wl); |
|
|
4394 | |
|
|
4395 | wl = wn; |
|
|
4396 | } |
|
|
4397 | |
|
|
4398 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4399 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4400 | #if EV_STAT_ENABLE |
|
|
4401 | /*TODO: timer is not always active*/ |
|
|
4402 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4403 | { |
|
|
4404 | if (types & EV_STAT) |
|
|
4405 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4406 | } |
|
|
4407 | else |
|
|
4408 | #endif |
|
|
4409 | if (types & EV_TIMER) |
|
|
4410 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4411 | |
|
|
4412 | #if EV_PERIODIC_ENABLE |
|
|
4413 | if (types & EV_PERIODIC) |
|
|
4414 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4415 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4416 | #endif |
|
|
4417 | |
|
|
4418 | #if EV_IDLE_ENABLE |
|
|
4419 | if (types & EV_IDLE) |
|
|
4420 | for (j = NUMPRI; j--; ) |
|
|
4421 | for (i = idlecnt [j]; i--; ) |
|
|
4422 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4423 | #endif |
|
|
4424 | |
|
|
4425 | #if EV_FORK_ENABLE |
|
|
4426 | if (types & EV_FORK) |
|
|
4427 | for (i = forkcnt; i--; ) |
|
|
4428 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4429 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4430 | #endif |
|
|
4431 | |
|
|
4432 | #if EV_ASYNC_ENABLE |
|
|
4433 | if (types & EV_ASYNC) |
|
|
4434 | for (i = asynccnt; i--; ) |
|
|
4435 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4436 | #endif |
|
|
4437 | |
|
|
4438 | #if EV_PREPARE_ENABLE |
|
|
4439 | if (types & EV_PREPARE) |
|
|
4440 | for (i = preparecnt; i--; ) |
|
|
4441 | # if EV_EMBED_ENABLE |
|
|
4442 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4443 | # endif |
|
|
4444 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4445 | #endif |
|
|
4446 | |
|
|
4447 | #if EV_CHECK_ENABLE |
|
|
4448 | if (types & EV_CHECK) |
|
|
4449 | for (i = checkcnt; i--; ) |
|
|
4450 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4451 | #endif |
|
|
4452 | |
|
|
4453 | #if EV_SIGNAL_ENABLE |
|
|
4454 | if (types & EV_SIGNAL) |
|
|
4455 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4456 | for (wl = signals [i].head; wl; ) |
|
|
4457 | { |
|
|
4458 | wn = wl->next; |
|
|
4459 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4460 | wl = wn; |
|
|
4461 | } |
|
|
4462 | #endif |
|
|
4463 | |
|
|
4464 | #if EV_CHILD_ENABLE |
|
|
4465 | if (types & EV_CHILD) |
|
|
4466 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4467 | for (wl = childs [i]; wl; ) |
|
|
4468 | { |
|
|
4469 | wn = wl->next; |
|
|
4470 | cb (EV_A_ EV_CHILD, wl); |
|
|
4471 | wl = wn; |
|
|
4472 | } |
|
|
4473 | #endif |
|
|
4474 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4475 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4476 | } |
|
|
4477 | #endif |
|
|
4478 | |
2648 | #if EV_MULTIPLICITY |
4479 | #if EV_MULTIPLICITY |
2649 | #include "ev_wrap.h" |
4480 | #include "ev_wrap.h" |
2650 | #endif |
4481 | #endif |
2651 | |
4482 | |
2652 | #ifdef __cplusplus |
|
|
2653 | } |
|
|
2654 | #endif |
|
|
2655 | |
|
|