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" |
152 | #endif |
186 | #endif |
|
|
187 | |
|
|
188 | EV_CPP(extern "C" {) |
153 | |
189 | |
154 | #ifndef _WIN32 |
190 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
191 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
192 | # include <sys/wait.h> |
157 | # include <unistd.h> |
193 | # include <unistd.h> |
158 | #else |
194 | #else |
|
|
195 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
196 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
197 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
200 | # endif |
|
|
201 | # undef EV_AVOID_STDIO |
164 | #endif |
202 | #endif |
|
|
203 | |
|
|
204 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
205 | * a limit of 1024 into their select. Where people have brains, |
|
|
206 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
207 | * ordered to have a vacuum, or they do anything for money. |
|
|
208 | * This might help. Or not. |
|
|
209 | */ |
|
|
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
165 | |
211 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
213 | |
|
|
214 | /* try to deduce the maximum number of signals on this platform */ |
|
|
215 | #if defined (EV_NSIG) |
|
|
216 | /* use what's provided */ |
|
|
217 | #elif defined (NSIG) |
|
|
218 | # define EV_NSIG (NSIG) |
|
|
219 | #elif defined(_NSIG) |
|
|
220 | # define EV_NSIG (_NSIG) |
|
|
221 | #elif defined (SIGMAX) |
|
|
222 | # define EV_NSIG (SIGMAX+1) |
|
|
223 | #elif defined (SIG_MAX) |
|
|
224 | # define EV_NSIG (SIG_MAX+1) |
|
|
225 | #elif defined (_SIG_MAX) |
|
|
226 | # define EV_NSIG (_SIG_MAX+1) |
|
|
227 | #elif defined (MAXSIG) |
|
|
228 | # define EV_NSIG (MAXSIG+1) |
|
|
229 | #elif defined (MAX_SIG) |
|
|
230 | # define EV_NSIG (MAX_SIG+1) |
|
|
231 | #elif defined (SIGARRAYSIZE) |
|
|
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
233 | #elif defined (_sys_nsig) |
|
|
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
235 | #else |
|
|
236 | # error "unable to find value for NSIG, please report" |
|
|
237 | /* to make it compile regardless, just remove the above line, */ |
|
|
238 | /* but consider reporting it, too! :) */ |
|
|
239 | # define EV_NSIG 65 |
|
|
240 | #endif |
|
|
241 | |
|
|
242 | #ifndef EV_USE_FLOOR |
|
|
243 | # define EV_USE_FLOOR 0 |
|
|
244 | #endif |
|
|
245 | |
|
|
246 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
247 | # if __linux && __GLIBC__ >= 2 |
|
|
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
249 | # else |
|
|
250 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
251 | # endif |
|
|
252 | #endif |
|
|
253 | |
168 | #ifndef EV_USE_MONOTONIC |
254 | #ifndef EV_USE_MONOTONIC |
|
|
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
257 | # else |
169 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
|
|
259 | # endif |
170 | #endif |
260 | #endif |
171 | |
261 | |
172 | #ifndef EV_USE_REALTIME |
262 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
263 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
264 | #endif |
175 | |
265 | |
176 | #ifndef EV_USE_NANOSLEEP |
266 | #ifndef EV_USE_NANOSLEEP |
|
|
267 | # if _POSIX_C_SOURCE >= 199309L |
|
|
268 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
269 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
270 | # define EV_USE_NANOSLEEP 0 |
|
|
271 | # endif |
178 | #endif |
272 | #endif |
179 | |
273 | |
180 | #ifndef EV_USE_SELECT |
274 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
275 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
276 | #endif |
183 | |
277 | |
184 | #ifndef EV_USE_POLL |
278 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
279 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
280 | # define EV_USE_POLL 0 |
187 | # else |
281 | # else |
188 | # define EV_USE_POLL 1 |
282 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
283 | # endif |
190 | #endif |
284 | #endif |
191 | |
285 | |
192 | #ifndef EV_USE_EPOLL |
286 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
287 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
288 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
289 | # else |
196 | # define EV_USE_EPOLL 0 |
290 | # define EV_USE_EPOLL 0 |
197 | # endif |
291 | # endif |
198 | #endif |
292 | #endif |
199 | |
293 | |
… | |
… | |
205 | # define EV_USE_PORT 0 |
299 | # define EV_USE_PORT 0 |
206 | #endif |
300 | #endif |
207 | |
301 | |
208 | #ifndef EV_USE_INOTIFY |
302 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
305 | # else |
212 | # define EV_USE_INOTIFY 0 |
306 | # define EV_USE_INOTIFY 0 |
213 | # endif |
307 | # endif |
214 | #endif |
308 | #endif |
215 | |
309 | |
216 | #ifndef EV_PID_HASHSIZE |
310 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
311 | # 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 |
312 | #endif |
223 | |
313 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
314 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
315 | # 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 |
316 | #endif |
231 | |
317 | |
232 | #ifndef EV_USE_EVENTFD |
318 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
320 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
321 | # else |
236 | # define EV_USE_EVENTFD 0 |
322 | # define EV_USE_EVENTFD 0 |
237 | # endif |
323 | # endif |
238 | #endif |
324 | #endif |
239 | |
325 | |
|
|
326 | #ifndef EV_USE_SIGNALFD |
|
|
327 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
328 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
329 | # else |
|
|
330 | # define EV_USE_SIGNALFD 0 |
|
|
331 | # endif |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if 0 /* debugging */ |
|
|
335 | # define EV_VERIFY 3 |
|
|
336 | # define EV_USE_4HEAP 1 |
|
|
337 | # define EV_HEAP_CACHE_AT 1 |
|
|
338 | #endif |
|
|
339 | |
|
|
340 | #ifndef EV_VERIFY |
|
|
341 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
342 | #endif |
|
|
343 | |
|
|
344 | #ifndef EV_USE_4HEAP |
|
|
345 | # define EV_USE_4HEAP EV_FEATURE_DATA |
|
|
346 | #endif |
|
|
347 | |
|
|
348 | #ifndef EV_HEAP_CACHE_AT |
|
|
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
350 | #endif |
|
|
351 | |
|
|
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
353 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
354 | #if EV_USE_CLOCK_SYSCALL |
|
|
355 | # include <syscall.h> |
|
|
356 | # ifdef SYS_clock_gettime |
|
|
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
358 | # undef EV_USE_MONOTONIC |
|
|
359 | # define EV_USE_MONOTONIC 1 |
|
|
360 | # else |
|
|
361 | # undef EV_USE_CLOCK_SYSCALL |
|
|
362 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
363 | # endif |
|
|
364 | #endif |
|
|
365 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
367 | |
|
|
368 | #ifdef _AIX |
|
|
369 | /* AIX has a completely broken poll.h header */ |
|
|
370 | # undef EV_USE_POLL |
|
|
371 | # define EV_USE_POLL 0 |
|
|
372 | #endif |
241 | |
373 | |
242 | #ifndef CLOCK_MONOTONIC |
374 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
376 | # define EV_USE_MONOTONIC 0 |
245 | #endif |
377 | #endif |
… | |
… | |
253 | # undef EV_USE_INOTIFY |
385 | # undef EV_USE_INOTIFY |
254 | # define EV_USE_INOTIFY 0 |
386 | # define EV_USE_INOTIFY 0 |
255 | #endif |
387 | #endif |
256 | |
388 | |
257 | #if !EV_USE_NANOSLEEP |
389 | #if !EV_USE_NANOSLEEP |
258 | # ifndef _WIN32 |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
391 | # if !defined(_WIN32) && !defined(__hpux) |
259 | # include <sys/select.h> |
392 | # include <sys/select.h> |
260 | # endif |
393 | # endif |
261 | #endif |
394 | #endif |
262 | |
395 | |
263 | #if EV_USE_INOTIFY |
396 | #if EV_USE_INOTIFY |
|
|
397 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
398 | # include <sys/inotify.h> |
|
|
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
400 | # ifndef IN_DONT_FOLLOW |
|
|
401 | # undef EV_USE_INOTIFY |
|
|
402 | # define EV_USE_INOTIFY 0 |
|
|
403 | # endif |
265 | #endif |
404 | #endif |
266 | |
405 | |
267 | #if EV_SELECT_IS_WINSOCKET |
406 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
407 | # include <winsock.h> |
269 | #endif |
408 | #endif |
270 | |
409 | |
271 | #if EV_USE_EVENTFD |
410 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
412 | # include <stdint.h> |
274 | # ifdef __cplusplus |
413 | # ifndef EFD_NONBLOCK |
275 | extern "C" { |
414 | # define EFD_NONBLOCK O_NONBLOCK |
276 | # endif |
415 | # endif |
277 | int eventfd (unsigned int initval, int flags); |
416 | # ifndef EFD_CLOEXEC |
278 | # ifdef __cplusplus |
417 | # ifdef O_CLOEXEC |
279 | } |
418 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
419 | # else |
|
|
420 | # define EFD_CLOEXEC 02000000 |
|
|
421 | # endif |
280 | # endif |
422 | # endif |
|
|
423 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
424 | #endif |
|
|
425 | |
|
|
426 | #if EV_USE_SIGNALFD |
|
|
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
428 | # include <stdint.h> |
|
|
429 | # ifndef SFD_NONBLOCK |
|
|
430 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
431 | # endif |
|
|
432 | # ifndef SFD_CLOEXEC |
|
|
433 | # ifdef O_CLOEXEC |
|
|
434 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
435 | # else |
|
|
436 | # define SFD_CLOEXEC 02000000 |
|
|
437 | # endif |
|
|
438 | # endif |
|
|
439 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
440 | |
|
|
441 | struct signalfd_siginfo |
|
|
442 | { |
|
|
443 | uint32_t ssi_signo; |
|
|
444 | char pad[128 - sizeof (uint32_t)]; |
|
|
445 | }; |
281 | #endif |
446 | #endif |
282 | |
447 | |
283 | /**/ |
448 | /**/ |
284 | |
449 | |
|
|
450 | #if EV_VERIFY >= 3 |
|
|
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
452 | #else |
|
|
453 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
454 | #endif |
|
|
455 | |
285 | /* |
456 | /* |
286 | * This is used to avoid floating point rounding problems. |
457 | * 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. |
458 | * This value is good at least till the year 4000. |
291 | * Better solutions welcome. |
|
|
292 | */ |
459 | */ |
293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
460 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
461 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
294 | |
462 | |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
463 | #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) */ |
464 | #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 | |
465 | |
299 | #if __GNUC__ >= 4 |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
301 | # define noinline __attribute__ ((noinline)) |
468 | |
|
|
469 | /* the following are taken from libecb */ |
|
|
470 | /* ecb.h start */ |
|
|
471 | |
|
|
472 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
473 | * what their idiot authors think are the "more important" extensions, |
|
|
474 | * causing enourmous grief in return for some better fake benchmark numbers. |
|
|
475 | * or so. |
|
|
476 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
477 | * an issue with that they should have done it right in the first place. |
|
|
478 | */ |
|
|
479 | #ifndef ECB_GCC_VERSION |
|
|
480 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
|
481 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
482 | #else |
|
|
483 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
484 | #endif |
|
|
485 | #endif |
|
|
486 | |
|
|
487 | #if __cplusplus |
|
|
488 | #define ecb_inline static inline |
|
|
489 | #elif ECB_GCC_VERSION(2,5) |
|
|
490 | #define ecb_inline static __inline__ |
|
|
491 | #elif ECB_C99 |
|
|
492 | #define ecb_inline static inline |
302 | #else |
493 | #else |
303 | # define expect(expr,value) (expr) |
494 | #define ecb_inline static |
304 | # define noinline |
|
|
305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
306 | # define inline |
|
|
307 | # endif |
495 | #endif |
308 | #endif |
|
|
309 | |
496 | |
|
|
497 | #if ECB_GCC_VERSION(3,1) |
|
|
498 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
499 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
500 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
501 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
502 | #else |
|
|
503 | #define ecb_attribute(attrlist) |
|
|
504 | #define ecb_is_constant(expr) 0 |
|
|
505 | #define ecb_expect(expr,value) (expr) |
|
|
506 | #define ecb_prefetch(addr,rw,locality) |
|
|
507 | #endif |
|
|
508 | |
|
|
509 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
510 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
511 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
512 | #define ecb_const ecb_attribute ((__const__)) |
|
|
513 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
514 | |
|
|
515 | #if ECB_GCC_VERSION(4,3) |
|
|
516 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
517 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
518 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
519 | #else |
|
|
520 | #define ecb_artificial |
|
|
521 | #define ecb_hot |
|
|
522 | #define ecb_cold |
|
|
523 | #endif |
|
|
524 | |
|
|
525 | /* put around conditional expressions if you are very sure that the */ |
|
|
526 | /* expression is mostly true or mostly false. note that these return */ |
|
|
527 | /* booleans, not the expression. */ |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
528 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
529 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
530 | /* ecb.h end */ |
|
|
531 | |
|
|
532 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
533 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
534 | #define noinline ecb_noinline |
|
|
535 | |
312 | #define inline_size static inline |
536 | #define inline_size ecb_inline |
313 | |
537 | |
314 | #if EV_MINIMAL |
538 | #if EV_FEATURE_CODE |
|
|
539 | # define inline_speed ecb_inline |
|
|
540 | #else |
315 | # define inline_speed static noinline |
541 | # define inline_speed static noinline |
|
|
542 | #endif |
|
|
543 | |
|
|
544 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
545 | |
|
|
546 | #if EV_MINPRI == EV_MAXPRI |
|
|
547 | # define ABSPRI(w) (((W)w), 0) |
316 | #else |
548 | #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) |
549 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
550 | #endif |
322 | |
551 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
552 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
553 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
554 | |
326 | typedef ev_watcher *W; |
555 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
556 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
557 | typedef ev_watcher_time *WT; |
329 | |
558 | |
|
|
559 | #define ev_active(w) ((W)(w))->active |
|
|
560 | #define ev_at(w) ((WT)(w))->at |
|
|
561 | |
|
|
562 | #if EV_USE_REALTIME |
|
|
563 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
564 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
565 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
566 | #endif |
|
|
567 | |
330 | #if EV_USE_MONOTONIC |
568 | #if EV_USE_MONOTONIC |
331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
332 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
569 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
570 | #endif |
|
|
571 | |
|
|
572 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
573 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
574 | #endif |
|
|
575 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
576 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
577 | #endif |
|
|
578 | #ifndef EV_WIN32_CLOSE_FD |
|
|
579 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
334 | #endif |
580 | #endif |
335 | |
581 | |
336 | #ifdef _WIN32 |
582 | #ifdef _WIN32 |
337 | # include "ev_win32.c" |
583 | # include "ev_win32.c" |
338 | #endif |
584 | #endif |
339 | |
585 | |
340 | /*****************************************************************************/ |
586 | /*****************************************************************************/ |
341 | |
587 | |
|
|
588 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
589 | |
|
|
590 | #if EV_USE_FLOOR |
|
|
591 | # include <math.h> |
|
|
592 | # define ev_floor(v) floor (v) |
|
|
593 | #else |
|
|
594 | |
|
|
595 | #include <float.h> |
|
|
596 | |
|
|
597 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
598 | static ev_tstamp noinline |
|
|
599 | ev_floor (ev_tstamp v) |
|
|
600 | { |
|
|
601 | /* the choice of shift factor is not terribly important */ |
|
|
602 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
603 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
604 | #else |
|
|
605 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
606 | #endif |
|
|
607 | |
|
|
608 | /* argument too large for an unsigned long? */ |
|
|
609 | if (expect_false (v >= shift)) |
|
|
610 | { |
|
|
611 | ev_tstamp f; |
|
|
612 | |
|
|
613 | if (v == v - 1.) |
|
|
614 | return v; /* very large number */ |
|
|
615 | |
|
|
616 | f = shift * ev_floor (v * (1. / shift)); |
|
|
617 | return f + ev_floor (v - f); |
|
|
618 | } |
|
|
619 | |
|
|
620 | /* special treatment for negative args? */ |
|
|
621 | if (expect_false (v < 0.)) |
|
|
622 | { |
|
|
623 | ev_tstamp f = -ev_floor (-v); |
|
|
624 | |
|
|
625 | return f - (f == v ? 0 : 1); |
|
|
626 | } |
|
|
627 | |
|
|
628 | /* fits into an unsigned long */ |
|
|
629 | return (unsigned long)v; |
|
|
630 | } |
|
|
631 | |
|
|
632 | #endif |
|
|
633 | |
|
|
634 | /*****************************************************************************/ |
|
|
635 | |
|
|
636 | #ifdef __linux |
|
|
637 | # include <sys/utsname.h> |
|
|
638 | #endif |
|
|
639 | |
|
|
640 | static unsigned int noinline ecb_cold |
|
|
641 | ev_linux_version (void) |
|
|
642 | { |
|
|
643 | #ifdef __linux |
|
|
644 | unsigned int v = 0; |
|
|
645 | struct utsname buf; |
|
|
646 | int i; |
|
|
647 | char *p = buf.release; |
|
|
648 | |
|
|
649 | if (uname (&buf)) |
|
|
650 | return 0; |
|
|
651 | |
|
|
652 | for (i = 3+1; --i; ) |
|
|
653 | { |
|
|
654 | unsigned int c = 0; |
|
|
655 | |
|
|
656 | for (;;) |
|
|
657 | { |
|
|
658 | if (*p >= '0' && *p <= '9') |
|
|
659 | c = c * 10 + *p++ - '0'; |
|
|
660 | else |
|
|
661 | { |
|
|
662 | p += *p == '.'; |
|
|
663 | break; |
|
|
664 | } |
|
|
665 | } |
|
|
666 | |
|
|
667 | v = (v << 8) | c; |
|
|
668 | } |
|
|
669 | |
|
|
670 | return v; |
|
|
671 | #else |
|
|
672 | return 0; |
|
|
673 | #endif |
|
|
674 | } |
|
|
675 | |
|
|
676 | /*****************************************************************************/ |
|
|
677 | |
|
|
678 | #if EV_AVOID_STDIO |
|
|
679 | static void noinline ecb_cold |
|
|
680 | ev_printerr (const char *msg) |
|
|
681 | { |
|
|
682 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
683 | } |
|
|
684 | #endif |
|
|
685 | |
342 | static void (*syserr_cb)(const char *msg); |
686 | static void (*syserr_cb)(const char *msg); |
343 | |
687 | |
344 | void |
688 | void ecb_cold |
345 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
689 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
346 | { |
690 | { |
347 | syserr_cb = cb; |
691 | syserr_cb = cb; |
348 | } |
692 | } |
349 | |
693 | |
350 | static void noinline |
694 | static void noinline ecb_cold |
351 | syserr (const char *msg) |
695 | ev_syserr (const char *msg) |
352 | { |
696 | { |
353 | if (!msg) |
697 | if (!msg) |
354 | msg = "(libev) system error"; |
698 | msg = "(libev) system error"; |
355 | |
699 | |
356 | if (syserr_cb) |
700 | if (syserr_cb) |
357 | syserr_cb (msg); |
701 | syserr_cb (msg); |
358 | else |
702 | else |
359 | { |
703 | { |
|
|
704 | #if EV_AVOID_STDIO |
|
|
705 | ev_printerr (msg); |
|
|
706 | ev_printerr (": "); |
|
|
707 | ev_printerr (strerror (errno)); |
|
|
708 | ev_printerr ("\n"); |
|
|
709 | #else |
360 | perror (msg); |
710 | perror (msg); |
|
|
711 | #endif |
361 | abort (); |
712 | abort (); |
362 | } |
713 | } |
363 | } |
714 | } |
364 | |
715 | |
|
|
716 | static void * |
|
|
717 | ev_realloc_emul (void *ptr, long size) |
|
|
718 | { |
|
|
719 | #if __GLIBC__ |
|
|
720 | return realloc (ptr, size); |
|
|
721 | #else |
|
|
722 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
723 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
724 | * the single unix specification, so work around them here. |
|
|
725 | */ |
|
|
726 | |
|
|
727 | if (size) |
|
|
728 | return realloc (ptr, size); |
|
|
729 | |
|
|
730 | free (ptr); |
|
|
731 | return 0; |
|
|
732 | #endif |
|
|
733 | } |
|
|
734 | |
365 | static void *(*alloc)(void *ptr, long size); |
735 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
366 | |
736 | |
367 | void |
737 | void ecb_cold |
368 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
738 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
369 | { |
739 | { |
370 | alloc = cb; |
740 | alloc = cb; |
371 | } |
741 | } |
372 | |
742 | |
373 | inline_speed void * |
743 | inline_speed void * |
374 | ev_realloc (void *ptr, long size) |
744 | ev_realloc (void *ptr, long size) |
375 | { |
745 | { |
376 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
746 | ptr = alloc (ptr, size); |
377 | |
747 | |
378 | if (!ptr && size) |
748 | if (!ptr && size) |
379 | { |
749 | { |
|
|
750 | #if EV_AVOID_STDIO |
|
|
751 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
752 | #else |
380 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
753 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
754 | #endif |
381 | abort (); |
755 | abort (); |
382 | } |
756 | } |
383 | |
757 | |
384 | return ptr; |
758 | return ptr; |
385 | } |
759 | } |
… | |
… | |
387 | #define ev_malloc(size) ev_realloc (0, (size)) |
761 | #define ev_malloc(size) ev_realloc (0, (size)) |
388 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
762 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
389 | |
763 | |
390 | /*****************************************************************************/ |
764 | /*****************************************************************************/ |
391 | |
765 | |
|
|
766 | /* set in reify when reification needed */ |
|
|
767 | #define EV_ANFD_REIFY 1 |
|
|
768 | |
|
|
769 | /* file descriptor info structure */ |
392 | typedef struct |
770 | typedef struct |
393 | { |
771 | { |
394 | WL head; |
772 | WL head; |
395 | unsigned char events; |
773 | unsigned char events; /* the events watched for */ |
|
|
774 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
775 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
396 | unsigned char reify; |
776 | unsigned char unused; |
|
|
777 | #if EV_USE_EPOLL |
|
|
778 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
779 | #endif |
397 | #if EV_SELECT_IS_WINSOCKET |
780 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
398 | SOCKET handle; |
781 | SOCKET handle; |
399 | #endif |
782 | #endif |
|
|
783 | #if EV_USE_IOCP |
|
|
784 | OVERLAPPED or, ow; |
|
|
785 | #endif |
400 | } ANFD; |
786 | } ANFD; |
401 | |
787 | |
|
|
788 | /* stores the pending event set for a given watcher */ |
402 | typedef struct |
789 | typedef struct |
403 | { |
790 | { |
404 | W w; |
791 | W w; |
405 | int events; |
792 | int events; /* the pending event set for the given watcher */ |
406 | } ANPENDING; |
793 | } ANPENDING; |
407 | |
794 | |
408 | #if EV_USE_INOTIFY |
795 | #if EV_USE_INOTIFY |
|
|
796 | /* hash table entry per inotify-id */ |
409 | typedef struct |
797 | typedef struct |
410 | { |
798 | { |
411 | WL head; |
799 | WL head; |
412 | } ANFS; |
800 | } ANFS; |
|
|
801 | #endif |
|
|
802 | |
|
|
803 | /* Heap Entry */ |
|
|
804 | #if EV_HEAP_CACHE_AT |
|
|
805 | /* a heap element */ |
|
|
806 | typedef struct { |
|
|
807 | ev_tstamp at; |
|
|
808 | WT w; |
|
|
809 | } ANHE; |
|
|
810 | |
|
|
811 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
812 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
813 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
814 | #else |
|
|
815 | /* a heap element */ |
|
|
816 | typedef WT ANHE; |
|
|
817 | |
|
|
818 | #define ANHE_w(he) (he) |
|
|
819 | #define ANHE_at(he) (he)->at |
|
|
820 | #define ANHE_at_cache(he) |
413 | #endif |
821 | #endif |
414 | |
822 | |
415 | #if EV_MULTIPLICITY |
823 | #if EV_MULTIPLICITY |
416 | |
824 | |
417 | struct ev_loop |
825 | struct ev_loop |
… | |
… | |
436 | |
844 | |
437 | static int ev_default_loop_ptr; |
845 | static int ev_default_loop_ptr; |
438 | |
846 | |
439 | #endif |
847 | #endif |
440 | |
848 | |
|
|
849 | #if EV_FEATURE_API |
|
|
850 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
851 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
852 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
853 | #else |
|
|
854 | # define EV_RELEASE_CB (void)0 |
|
|
855 | # define EV_ACQUIRE_CB (void)0 |
|
|
856 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | #define EVBREAK_RECURSE 0x80 |
|
|
860 | |
441 | /*****************************************************************************/ |
861 | /*****************************************************************************/ |
442 | |
862 | |
|
|
863 | #ifndef EV_HAVE_EV_TIME |
443 | ev_tstamp |
864 | ev_tstamp |
444 | ev_time (void) |
865 | ev_time (void) |
445 | { |
866 | { |
446 | #if EV_USE_REALTIME |
867 | #if EV_USE_REALTIME |
|
|
868 | if (expect_true (have_realtime)) |
|
|
869 | { |
447 | struct timespec ts; |
870 | struct timespec ts; |
448 | clock_gettime (CLOCK_REALTIME, &ts); |
871 | clock_gettime (CLOCK_REALTIME, &ts); |
449 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
872 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
450 | #else |
873 | } |
|
|
874 | #endif |
|
|
875 | |
451 | struct timeval tv; |
876 | struct timeval tv; |
452 | gettimeofday (&tv, 0); |
877 | gettimeofday (&tv, 0); |
453 | return tv.tv_sec + tv.tv_usec * 1e-6; |
878 | return tv.tv_sec + tv.tv_usec * 1e-6; |
454 | #endif |
|
|
455 | } |
879 | } |
|
|
880 | #endif |
456 | |
881 | |
457 | ev_tstamp inline_size |
882 | inline_size ev_tstamp |
458 | get_clock (void) |
883 | get_clock (void) |
459 | { |
884 | { |
460 | #if EV_USE_MONOTONIC |
885 | #if EV_USE_MONOTONIC |
461 | if (expect_true (have_monotonic)) |
886 | if (expect_true (have_monotonic)) |
462 | { |
887 | { |
… | |
… | |
483 | if (delay > 0.) |
908 | if (delay > 0.) |
484 | { |
909 | { |
485 | #if EV_USE_NANOSLEEP |
910 | #if EV_USE_NANOSLEEP |
486 | struct timespec ts; |
911 | struct timespec ts; |
487 | |
912 | |
488 | ts.tv_sec = (time_t)delay; |
913 | EV_TS_SET (ts, delay); |
489 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
490 | |
|
|
491 | nanosleep (&ts, 0); |
914 | nanosleep (&ts, 0); |
492 | #elif defined(_WIN32) |
915 | #elif defined(_WIN32) |
493 | Sleep ((unsigned long)(delay * 1e3)); |
916 | Sleep ((unsigned long)(delay * 1e3)); |
494 | #else |
917 | #else |
495 | struct timeval tv; |
918 | struct timeval tv; |
496 | |
919 | |
497 | tv.tv_sec = (time_t)delay; |
920 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
498 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
921 | /* something not guaranteed by newer posix versions, but guaranteed */ |
499 | |
922 | /* by older ones */ |
|
|
923 | EV_TV_SET (tv, delay); |
500 | select (0, 0, 0, 0, &tv); |
924 | select (0, 0, 0, 0, &tv); |
501 | #endif |
925 | #endif |
502 | } |
926 | } |
503 | } |
927 | } |
504 | |
928 | |
505 | /*****************************************************************************/ |
929 | /*****************************************************************************/ |
506 | |
930 | |
507 | int inline_size |
931 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
932 | |
|
|
933 | /* find a suitable new size for the given array, */ |
|
|
934 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
935 | inline_size int |
508 | array_nextsize (int elem, int cur, int cnt) |
936 | array_nextsize (int elem, int cur, int cnt) |
509 | { |
937 | { |
510 | int ncur = cur + 1; |
938 | int ncur = cur + 1; |
511 | |
939 | |
512 | do |
940 | do |
513 | ncur <<= 1; |
941 | ncur <<= 1; |
514 | while (cnt > ncur); |
942 | while (cnt > ncur); |
515 | |
943 | |
516 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
944 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
517 | if (elem * ncur > 4096) |
945 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
518 | { |
946 | { |
519 | ncur *= elem; |
947 | ncur *= elem; |
520 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
948 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
521 | ncur = ncur - sizeof (void *) * 4; |
949 | ncur = ncur - sizeof (void *) * 4; |
522 | ncur /= elem; |
950 | ncur /= elem; |
523 | } |
951 | } |
524 | |
952 | |
525 | return ncur; |
953 | return ncur; |
526 | } |
954 | } |
527 | |
955 | |
528 | static noinline void * |
956 | static void * noinline ecb_cold |
529 | array_realloc (int elem, void *base, int *cur, int cnt) |
957 | array_realloc (int elem, void *base, int *cur, int cnt) |
530 | { |
958 | { |
531 | *cur = array_nextsize (elem, *cur, cnt); |
959 | *cur = array_nextsize (elem, *cur, cnt); |
532 | return ev_realloc (base, elem * *cur); |
960 | return ev_realloc (base, elem * *cur); |
533 | } |
961 | } |
|
|
962 | |
|
|
963 | #define array_init_zero(base,count) \ |
|
|
964 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
534 | |
965 | |
535 | #define array_needsize(type,base,cur,cnt,init) \ |
966 | #define array_needsize(type,base,cur,cnt,init) \ |
536 | if (expect_false ((cnt) > (cur))) \ |
967 | if (expect_false ((cnt) > (cur))) \ |
537 | { \ |
968 | { \ |
538 | int ocur_ = (cur); \ |
969 | int ocur_ = (cur); \ |
… | |
… | |
550 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
981 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
551 | } |
982 | } |
552 | #endif |
983 | #endif |
553 | |
984 | |
554 | #define array_free(stem, idx) \ |
985 | #define array_free(stem, idx) \ |
555 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
986 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
556 | |
987 | |
557 | /*****************************************************************************/ |
988 | /*****************************************************************************/ |
|
|
989 | |
|
|
990 | /* dummy callback for pending events */ |
|
|
991 | static void noinline |
|
|
992 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
993 | { |
|
|
994 | } |
558 | |
995 | |
559 | void noinline |
996 | void noinline |
560 | ev_feed_event (EV_P_ void *w, int revents) |
997 | ev_feed_event (EV_P_ void *w, int revents) |
561 | { |
998 | { |
562 | W w_ = (W)w; |
999 | W w_ = (W)w; |
… | |
… | |
571 | pendings [pri][w_->pending - 1].w = w_; |
1008 | pendings [pri][w_->pending - 1].w = w_; |
572 | pendings [pri][w_->pending - 1].events = revents; |
1009 | pendings [pri][w_->pending - 1].events = revents; |
573 | } |
1010 | } |
574 | } |
1011 | } |
575 | |
1012 | |
576 | void inline_speed |
1013 | inline_speed void |
|
|
1014 | feed_reverse (EV_P_ W w) |
|
|
1015 | { |
|
|
1016 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1017 | rfeeds [rfeedcnt++] = w; |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | inline_size void |
|
|
1021 | feed_reverse_done (EV_P_ int revents) |
|
|
1022 | { |
|
|
1023 | do |
|
|
1024 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1025 | while (rfeedcnt); |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | inline_speed void |
577 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1029 | queue_events (EV_P_ W *events, int eventcnt, int type) |
578 | { |
1030 | { |
579 | int i; |
1031 | int i; |
580 | |
1032 | |
581 | for (i = 0; i < eventcnt; ++i) |
1033 | for (i = 0; i < eventcnt; ++i) |
582 | ev_feed_event (EV_A_ events [i], type); |
1034 | ev_feed_event (EV_A_ events [i], type); |
583 | } |
1035 | } |
584 | |
1036 | |
585 | /*****************************************************************************/ |
1037 | /*****************************************************************************/ |
586 | |
1038 | |
587 | void inline_size |
1039 | inline_speed void |
588 | anfds_init (ANFD *base, int count) |
|
|
589 | { |
|
|
590 | while (count--) |
|
|
591 | { |
|
|
592 | base->head = 0; |
|
|
593 | base->events = EV_NONE; |
|
|
594 | base->reify = 0; |
|
|
595 | |
|
|
596 | ++base; |
|
|
597 | } |
|
|
598 | } |
|
|
599 | |
|
|
600 | void inline_speed |
|
|
601 | fd_event (EV_P_ int fd, int revents) |
1040 | fd_event_nocheck (EV_P_ int fd, int revents) |
602 | { |
1041 | { |
603 | ANFD *anfd = anfds + fd; |
1042 | ANFD *anfd = anfds + fd; |
604 | ev_io *w; |
1043 | ev_io *w; |
605 | |
1044 | |
606 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1045 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
610 | if (ev) |
1049 | if (ev) |
611 | ev_feed_event (EV_A_ (W)w, ev); |
1050 | ev_feed_event (EV_A_ (W)w, ev); |
612 | } |
1051 | } |
613 | } |
1052 | } |
614 | |
1053 | |
|
|
1054 | /* do not submit kernel events for fds that have reify set */ |
|
|
1055 | /* because that means they changed while we were polling for new events */ |
|
|
1056 | inline_speed void |
|
|
1057 | fd_event (EV_P_ int fd, int revents) |
|
|
1058 | { |
|
|
1059 | ANFD *anfd = anfds + fd; |
|
|
1060 | |
|
|
1061 | if (expect_true (!anfd->reify)) |
|
|
1062 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1063 | } |
|
|
1064 | |
615 | void |
1065 | void |
616 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1066 | ev_feed_fd_event (EV_P_ int fd, int revents) |
617 | { |
1067 | { |
618 | if (fd >= 0 && fd < anfdmax) |
1068 | if (fd >= 0 && fd < anfdmax) |
619 | fd_event (EV_A_ fd, revents); |
1069 | fd_event_nocheck (EV_A_ fd, revents); |
620 | } |
1070 | } |
621 | |
1071 | |
622 | void inline_size |
1072 | /* make sure the external fd watch events are in-sync */ |
|
|
1073 | /* with the kernel/libev internal state */ |
|
|
1074 | inline_size void |
623 | fd_reify (EV_P) |
1075 | fd_reify (EV_P) |
624 | { |
1076 | { |
625 | int i; |
1077 | int i; |
|
|
1078 | |
|
|
1079 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1080 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1081 | { |
|
|
1082 | int fd = fdchanges [i]; |
|
|
1083 | ANFD *anfd = anfds + fd; |
|
|
1084 | |
|
|
1085 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1086 | { |
|
|
1087 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1088 | |
|
|
1089 | if (handle != anfd->handle) |
|
|
1090 | { |
|
|
1091 | unsigned long arg; |
|
|
1092 | |
|
|
1093 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1094 | |
|
|
1095 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1096 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1097 | anfd->events = 0; |
|
|
1098 | anfd->handle = handle; |
|
|
1099 | } |
|
|
1100 | } |
|
|
1101 | } |
|
|
1102 | #endif |
626 | |
1103 | |
627 | for (i = 0; i < fdchangecnt; ++i) |
1104 | for (i = 0; i < fdchangecnt; ++i) |
628 | { |
1105 | { |
629 | int fd = fdchanges [i]; |
1106 | int fd = fdchanges [i]; |
630 | ANFD *anfd = anfds + fd; |
1107 | ANFD *anfd = anfds + fd; |
631 | ev_io *w; |
1108 | ev_io *w; |
632 | |
1109 | |
633 | unsigned char events = 0; |
1110 | unsigned char o_events = anfd->events; |
|
|
1111 | unsigned char o_reify = anfd->reify; |
634 | |
1112 | |
635 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1113 | anfd->reify = 0; |
636 | events |= (unsigned char)w->events; |
|
|
637 | |
1114 | |
638 | #if EV_SELECT_IS_WINSOCKET |
1115 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
639 | if (events) |
|
|
640 | { |
1116 | { |
641 | unsigned long argp; |
1117 | anfd->events = 0; |
642 | #ifdef EV_FD_TO_WIN32_HANDLE |
1118 | |
643 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1119 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
644 | #else |
1120 | anfd->events |= (unsigned char)w->events; |
645 | anfd->handle = _get_osfhandle (fd); |
1121 | |
646 | #endif |
1122 | if (o_events != anfd->events) |
647 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1123 | o_reify = EV__IOFDSET; /* actually |= */ |
648 | } |
1124 | } |
649 | #endif |
|
|
650 | |
1125 | |
651 | { |
1126 | if (o_reify & EV__IOFDSET) |
652 | unsigned char o_events = anfd->events; |
|
|
653 | unsigned char o_reify = anfd->reify; |
|
|
654 | |
|
|
655 | anfd->reify = 0; |
|
|
656 | anfd->events = events; |
|
|
657 | |
|
|
658 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
659 | backend_modify (EV_A_ fd, o_events, events); |
1127 | backend_modify (EV_A_ fd, o_events, anfd->events); |
660 | } |
|
|
661 | } |
1128 | } |
662 | |
1129 | |
663 | fdchangecnt = 0; |
1130 | fdchangecnt = 0; |
664 | } |
1131 | } |
665 | |
1132 | |
666 | void inline_size |
1133 | /* something about the given fd changed */ |
|
|
1134 | inline_size void |
667 | fd_change (EV_P_ int fd, int flags) |
1135 | fd_change (EV_P_ int fd, int flags) |
668 | { |
1136 | { |
669 | unsigned char reify = anfds [fd].reify; |
1137 | unsigned char reify = anfds [fd].reify; |
670 | anfds [fd].reify |= flags; |
1138 | anfds [fd].reify |= flags; |
671 | |
1139 | |
… | |
… | |
675 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1143 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
676 | fdchanges [fdchangecnt - 1] = fd; |
1144 | fdchanges [fdchangecnt - 1] = fd; |
677 | } |
1145 | } |
678 | } |
1146 | } |
679 | |
1147 | |
680 | void inline_speed |
1148 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1149 | inline_speed void ecb_cold |
681 | fd_kill (EV_P_ int fd) |
1150 | fd_kill (EV_P_ int fd) |
682 | { |
1151 | { |
683 | ev_io *w; |
1152 | ev_io *w; |
684 | |
1153 | |
685 | while ((w = (ev_io *)anfds [fd].head)) |
1154 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
687 | ev_io_stop (EV_A_ w); |
1156 | ev_io_stop (EV_A_ w); |
688 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1157 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
689 | } |
1158 | } |
690 | } |
1159 | } |
691 | |
1160 | |
692 | int inline_size |
1161 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1162 | inline_size int ecb_cold |
693 | fd_valid (int fd) |
1163 | fd_valid (int fd) |
694 | { |
1164 | { |
695 | #ifdef _WIN32 |
1165 | #ifdef _WIN32 |
696 | return _get_osfhandle (fd) != -1; |
1166 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
697 | #else |
1167 | #else |
698 | return fcntl (fd, F_GETFD) != -1; |
1168 | return fcntl (fd, F_GETFD) != -1; |
699 | #endif |
1169 | #endif |
700 | } |
1170 | } |
701 | |
1171 | |
702 | /* called on EBADF to verify fds */ |
1172 | /* called on EBADF to verify fds */ |
703 | static void noinline |
1173 | static void noinline ecb_cold |
704 | fd_ebadf (EV_P) |
1174 | fd_ebadf (EV_P) |
705 | { |
1175 | { |
706 | int fd; |
1176 | int fd; |
707 | |
1177 | |
708 | for (fd = 0; fd < anfdmax; ++fd) |
1178 | for (fd = 0; fd < anfdmax; ++fd) |
709 | if (anfds [fd].events) |
1179 | if (anfds [fd].events) |
710 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1180 | if (!fd_valid (fd) && errno == EBADF) |
711 | fd_kill (EV_A_ fd); |
1181 | fd_kill (EV_A_ fd); |
712 | } |
1182 | } |
713 | |
1183 | |
714 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1184 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
715 | static void noinline |
1185 | static void noinline ecb_cold |
716 | fd_enomem (EV_P) |
1186 | fd_enomem (EV_P) |
717 | { |
1187 | { |
718 | int fd; |
1188 | int fd; |
719 | |
1189 | |
720 | for (fd = anfdmax; fd--; ) |
1190 | for (fd = anfdmax; fd--; ) |
721 | if (anfds [fd].events) |
1191 | if (anfds [fd].events) |
722 | { |
1192 | { |
723 | fd_kill (EV_A_ fd); |
1193 | fd_kill (EV_A_ fd); |
724 | return; |
1194 | break; |
725 | } |
1195 | } |
726 | } |
1196 | } |
727 | |
1197 | |
728 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1198 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
729 | static void noinline |
1199 | static void noinline |
… | |
… | |
733 | |
1203 | |
734 | for (fd = 0; fd < anfdmax; ++fd) |
1204 | for (fd = 0; fd < anfdmax; ++fd) |
735 | if (anfds [fd].events) |
1205 | if (anfds [fd].events) |
736 | { |
1206 | { |
737 | anfds [fd].events = 0; |
1207 | anfds [fd].events = 0; |
|
|
1208 | anfds [fd].emask = 0; |
738 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1209 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
739 | } |
1210 | } |
740 | } |
1211 | } |
741 | |
1212 | |
742 | /*****************************************************************************/ |
1213 | /* used to prepare libev internal fd's */ |
743 | |
1214 | /* this is not fork-safe */ |
744 | void inline_speed |
1215 | inline_speed void |
745 | upheap (WT *heap, int k) |
|
|
746 | { |
|
|
747 | WT w = heap [k]; |
|
|
748 | |
|
|
749 | while (k) |
|
|
750 | { |
|
|
751 | int p = (k - 1) >> 1; |
|
|
752 | |
|
|
753 | if (heap [p]->at <= w->at) |
|
|
754 | break; |
|
|
755 | |
|
|
756 | heap [k] = heap [p]; |
|
|
757 | ((W)heap [k])->active = k + 1; |
|
|
758 | k = p; |
|
|
759 | } |
|
|
760 | |
|
|
761 | heap [k] = w; |
|
|
762 | ((W)heap [k])->active = k + 1; |
|
|
763 | } |
|
|
764 | |
|
|
765 | void inline_speed |
|
|
766 | downheap (WT *heap, int N, int k) |
|
|
767 | { |
|
|
768 | WT w = heap [k]; |
|
|
769 | |
|
|
770 | for (;;) |
|
|
771 | { |
|
|
772 | int c = (k << 1) + 1; |
|
|
773 | |
|
|
774 | if (c >= N) |
|
|
775 | break; |
|
|
776 | |
|
|
777 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
778 | ? 1 : 0; |
|
|
779 | |
|
|
780 | if (w->at <= heap [c]->at) |
|
|
781 | break; |
|
|
782 | |
|
|
783 | heap [k] = heap [c]; |
|
|
784 | ((W)heap [k])->active = k + 1; |
|
|
785 | |
|
|
786 | k = c; |
|
|
787 | } |
|
|
788 | |
|
|
789 | heap [k] = w; |
|
|
790 | ((W)heap [k])->active = k + 1; |
|
|
791 | } |
|
|
792 | |
|
|
793 | void inline_size |
|
|
794 | adjustheap (WT *heap, int N, int k) |
|
|
795 | { |
|
|
796 | upheap (heap, k); |
|
|
797 | downheap (heap, N, k); |
|
|
798 | } |
|
|
799 | |
|
|
800 | /*****************************************************************************/ |
|
|
801 | |
|
|
802 | typedef struct |
|
|
803 | { |
|
|
804 | WL head; |
|
|
805 | EV_ATOMIC_T gotsig; |
|
|
806 | } ANSIG; |
|
|
807 | |
|
|
808 | static ANSIG *signals; |
|
|
809 | static int signalmax; |
|
|
810 | |
|
|
811 | static EV_ATOMIC_T gotsig; |
|
|
812 | |
|
|
813 | void inline_size |
|
|
814 | signals_init (ANSIG *base, int count) |
|
|
815 | { |
|
|
816 | while (count--) |
|
|
817 | { |
|
|
818 | base->head = 0; |
|
|
819 | base->gotsig = 0; |
|
|
820 | |
|
|
821 | ++base; |
|
|
822 | } |
|
|
823 | } |
|
|
824 | |
|
|
825 | /*****************************************************************************/ |
|
|
826 | |
|
|
827 | void inline_speed |
|
|
828 | fd_intern (int fd) |
1216 | fd_intern (int fd) |
829 | { |
1217 | { |
830 | #ifdef _WIN32 |
1218 | #ifdef _WIN32 |
831 | int arg = 1; |
1219 | unsigned long arg = 1; |
832 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1220 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
833 | #else |
1221 | #else |
834 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1222 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
835 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1223 | fcntl (fd, F_SETFL, O_NONBLOCK); |
836 | #endif |
1224 | #endif |
837 | } |
1225 | } |
838 | |
1226 | |
|
|
1227 | /*****************************************************************************/ |
|
|
1228 | |
|
|
1229 | /* |
|
|
1230 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1231 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1232 | * the branching factor of the d-tree. |
|
|
1233 | */ |
|
|
1234 | |
|
|
1235 | /* |
|
|
1236 | * at the moment we allow libev the luxury of two heaps, |
|
|
1237 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1238 | * which is more cache-efficient. |
|
|
1239 | * the difference is about 5% with 50000+ watchers. |
|
|
1240 | */ |
|
|
1241 | #if EV_USE_4HEAP |
|
|
1242 | |
|
|
1243 | #define DHEAP 4 |
|
|
1244 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1245 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1246 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1247 | |
|
|
1248 | /* away from the root */ |
|
|
1249 | inline_speed void |
|
|
1250 | downheap (ANHE *heap, int N, int k) |
|
|
1251 | { |
|
|
1252 | ANHE he = heap [k]; |
|
|
1253 | ANHE *E = heap + N + HEAP0; |
|
|
1254 | |
|
|
1255 | for (;;) |
|
|
1256 | { |
|
|
1257 | ev_tstamp minat; |
|
|
1258 | ANHE *minpos; |
|
|
1259 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1260 | |
|
|
1261 | /* find minimum child */ |
|
|
1262 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1263 | { |
|
|
1264 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1265 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1266 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1267 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1268 | } |
|
|
1269 | else if (pos < E) |
|
|
1270 | { |
|
|
1271 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1272 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1273 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1274 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1275 | } |
|
|
1276 | else |
|
|
1277 | break; |
|
|
1278 | |
|
|
1279 | if (ANHE_at (he) <= minat) |
|
|
1280 | break; |
|
|
1281 | |
|
|
1282 | heap [k] = *minpos; |
|
|
1283 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1284 | |
|
|
1285 | k = minpos - heap; |
|
|
1286 | } |
|
|
1287 | |
|
|
1288 | heap [k] = he; |
|
|
1289 | ev_active (ANHE_w (he)) = k; |
|
|
1290 | } |
|
|
1291 | |
|
|
1292 | #else /* 4HEAP */ |
|
|
1293 | |
|
|
1294 | #define HEAP0 1 |
|
|
1295 | #define HPARENT(k) ((k) >> 1) |
|
|
1296 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1297 | |
|
|
1298 | /* away from the root */ |
|
|
1299 | inline_speed void |
|
|
1300 | downheap (ANHE *heap, int N, int k) |
|
|
1301 | { |
|
|
1302 | ANHE he = heap [k]; |
|
|
1303 | |
|
|
1304 | for (;;) |
|
|
1305 | { |
|
|
1306 | int c = k << 1; |
|
|
1307 | |
|
|
1308 | if (c >= N + HEAP0) |
|
|
1309 | break; |
|
|
1310 | |
|
|
1311 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1312 | ? 1 : 0; |
|
|
1313 | |
|
|
1314 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1315 | break; |
|
|
1316 | |
|
|
1317 | heap [k] = heap [c]; |
|
|
1318 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1319 | |
|
|
1320 | k = c; |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | heap [k] = he; |
|
|
1324 | ev_active (ANHE_w (he)) = k; |
|
|
1325 | } |
|
|
1326 | #endif |
|
|
1327 | |
|
|
1328 | /* towards the root */ |
|
|
1329 | inline_speed void |
|
|
1330 | upheap (ANHE *heap, int k) |
|
|
1331 | { |
|
|
1332 | ANHE he = heap [k]; |
|
|
1333 | |
|
|
1334 | for (;;) |
|
|
1335 | { |
|
|
1336 | int p = HPARENT (k); |
|
|
1337 | |
|
|
1338 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1339 | break; |
|
|
1340 | |
|
|
1341 | heap [k] = heap [p]; |
|
|
1342 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1343 | k = p; |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | heap [k] = he; |
|
|
1347 | ev_active (ANHE_w (he)) = k; |
|
|
1348 | } |
|
|
1349 | |
|
|
1350 | /* move an element suitably so it is in a correct place */ |
|
|
1351 | inline_size void |
|
|
1352 | adjustheap (ANHE *heap, int N, int k) |
|
|
1353 | { |
|
|
1354 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1355 | upheap (heap, k); |
|
|
1356 | else |
|
|
1357 | downheap (heap, N, k); |
|
|
1358 | } |
|
|
1359 | |
|
|
1360 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1361 | inline_size void |
|
|
1362 | reheap (ANHE *heap, int N) |
|
|
1363 | { |
|
|
1364 | int i; |
|
|
1365 | |
|
|
1366 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1367 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1368 | for (i = 0; i < N; ++i) |
|
|
1369 | upheap (heap, i + HEAP0); |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | /*****************************************************************************/ |
|
|
1373 | |
|
|
1374 | /* associate signal watchers to a signal signal */ |
|
|
1375 | typedef struct |
|
|
1376 | { |
|
|
1377 | EV_ATOMIC_T pending; |
|
|
1378 | #if EV_MULTIPLICITY |
|
|
1379 | EV_P; |
|
|
1380 | #endif |
|
|
1381 | WL head; |
|
|
1382 | } ANSIG; |
|
|
1383 | |
|
|
1384 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1385 | |
|
|
1386 | /*****************************************************************************/ |
|
|
1387 | |
|
|
1388 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1389 | |
839 | static void noinline |
1390 | static void noinline ecb_cold |
840 | evpipe_init (EV_P) |
1391 | evpipe_init (EV_P) |
841 | { |
1392 | { |
842 | if (!ev_is_active (&pipeev)) |
1393 | if (!ev_is_active (&pipe_w)) |
843 | { |
1394 | { |
844 | #if EV_USE_EVENTFD |
1395 | # if EV_USE_EVENTFD |
|
|
1396 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1397 | if (evfd < 0 && errno == EINVAL) |
845 | if ((evfd = eventfd (0, 0)) >= 0) |
1398 | evfd = eventfd (0, 0); |
|
|
1399 | |
|
|
1400 | if (evfd >= 0) |
846 | { |
1401 | { |
847 | evpipe [0] = -1; |
1402 | evpipe [0] = -1; |
848 | fd_intern (evfd); |
1403 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
849 | ev_io_set (&pipeev, evfd, EV_READ); |
1404 | ev_io_set (&pipe_w, evfd, EV_READ); |
850 | } |
1405 | } |
851 | else |
1406 | else |
852 | #endif |
1407 | # endif |
853 | { |
1408 | { |
854 | while (pipe (evpipe)) |
1409 | while (pipe (evpipe)) |
855 | syserr ("(libev) error creating signal/async pipe"); |
1410 | ev_syserr ("(libev) error creating signal/async pipe"); |
856 | |
1411 | |
857 | fd_intern (evpipe [0]); |
1412 | fd_intern (evpipe [0]); |
858 | fd_intern (evpipe [1]); |
1413 | fd_intern (evpipe [1]); |
859 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1414 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
860 | } |
1415 | } |
861 | |
1416 | |
862 | ev_io_start (EV_A_ &pipeev); |
1417 | ev_io_start (EV_A_ &pipe_w); |
863 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1418 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
864 | } |
1419 | } |
865 | } |
1420 | } |
866 | |
1421 | |
867 | void inline_size |
1422 | inline_speed void |
868 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1423 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
869 | { |
1424 | { |
870 | if (!*flag) |
1425 | if (!*flag) |
871 | { |
1426 | { |
872 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
873 | |
|
|
874 | *flag = 1; |
1427 | *flag = 1; |
875 | |
1428 | |
|
|
1429 | pipe_write_skipped = 1; |
|
|
1430 | |
|
|
1431 | if (pipe_write_wanted) |
|
|
1432 | { |
|
|
1433 | int old_errno; |
|
|
1434 | |
|
|
1435 | pipe_write_skipped = 0; |
|
|
1436 | |
|
|
1437 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1438 | |
|
|
1439 | #if EV_USE_EVENTFD |
|
|
1440 | if (evfd >= 0) |
|
|
1441 | { |
|
|
1442 | uint64_t counter = 1; |
|
|
1443 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1444 | } |
|
|
1445 | else |
|
|
1446 | #endif |
|
|
1447 | { |
|
|
1448 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1449 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1450 | /* so when you think this write should be a send instead, please find out */ |
|
|
1451 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1452 | /* tell me. thank you. */ |
|
|
1453 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1454 | } |
|
|
1455 | |
|
|
1456 | errno = old_errno; |
|
|
1457 | } |
|
|
1458 | } |
|
|
1459 | } |
|
|
1460 | |
|
|
1461 | /* called whenever the libev signal pipe */ |
|
|
1462 | /* got some events (signal, async) */ |
|
|
1463 | static void |
|
|
1464 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1465 | { |
|
|
1466 | int i; |
|
|
1467 | |
|
|
1468 | if (revents & EV_READ) |
|
|
1469 | { |
876 | #if EV_USE_EVENTFD |
1470 | #if EV_USE_EVENTFD |
877 | if (evfd >= 0) |
1471 | if (evfd >= 0) |
878 | { |
1472 | { |
879 | uint64_t counter = 1; |
1473 | uint64_t counter; |
880 | write (evfd, &counter, sizeof (uint64_t)); |
1474 | read (evfd, &counter, sizeof (uint64_t)); |
881 | } |
1475 | } |
882 | else |
1476 | else |
883 | #endif |
1477 | #endif |
884 | write (evpipe [1], &old_errno, 1); |
1478 | { |
885 | |
|
|
886 | errno = old_errno; |
|
|
887 | } |
|
|
888 | } |
|
|
889 | |
|
|
890 | static void |
|
|
891 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
892 | { |
|
|
893 | #if EV_USE_EVENTFD |
|
|
894 | if (evfd >= 0) |
|
|
895 | { |
|
|
896 | uint64_t counter = 1; |
|
|
897 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
898 | } |
|
|
899 | else |
|
|
900 | #endif |
|
|
901 | { |
|
|
902 | char dummy; |
1479 | char dummy; |
|
|
1480 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
903 | read (evpipe [0], &dummy, 1); |
1481 | read (evpipe [0], &dummy, 1); |
|
|
1482 | } |
|
|
1483 | } |
|
|
1484 | |
|
|
1485 | pipe_write_skipped = 0; |
|
|
1486 | |
|
|
1487 | #if EV_SIGNAL_ENABLE |
|
|
1488 | if (sig_pending) |
904 | } |
1489 | { |
|
|
1490 | sig_pending = 0; |
905 | |
1491 | |
906 | if (gotsig && ev_is_default_loop (EV_A)) |
1492 | for (i = EV_NSIG - 1; i--; ) |
907 | { |
1493 | if (expect_false (signals [i].pending)) |
908 | int signum; |
|
|
909 | gotsig = 0; |
|
|
910 | |
|
|
911 | for (signum = signalmax; signum--; ) |
|
|
912 | if (signals [signum].gotsig) |
|
|
913 | ev_feed_signal_event (EV_A_ signum + 1); |
1494 | ev_feed_signal_event (EV_A_ i + 1); |
914 | } |
1495 | } |
|
|
1496 | #endif |
915 | |
1497 | |
916 | #if EV_ASYNC_ENABLE |
1498 | #if EV_ASYNC_ENABLE |
917 | if (gotasync) |
1499 | if (async_pending) |
918 | { |
1500 | { |
919 | int i; |
1501 | async_pending = 0; |
920 | gotasync = 0; |
|
|
921 | |
1502 | |
922 | for (i = asynccnt; i--; ) |
1503 | for (i = asynccnt; i--; ) |
923 | if (asyncs [i]->sent) |
1504 | if (asyncs [i]->sent) |
924 | { |
1505 | { |
925 | asyncs [i]->sent = 0; |
1506 | asyncs [i]->sent = 0; |
… | |
… | |
929 | #endif |
1510 | #endif |
930 | } |
1511 | } |
931 | |
1512 | |
932 | /*****************************************************************************/ |
1513 | /*****************************************************************************/ |
933 | |
1514 | |
|
|
1515 | void |
|
|
1516 | ev_feed_signal (int signum) |
|
|
1517 | { |
|
|
1518 | #if EV_MULTIPLICITY |
|
|
1519 | EV_P = signals [signum - 1].loop; |
|
|
1520 | |
|
|
1521 | if (!EV_A) |
|
|
1522 | return; |
|
|
1523 | #endif |
|
|
1524 | |
|
|
1525 | if (!ev_active (&pipe_w)) |
|
|
1526 | return; |
|
|
1527 | |
|
|
1528 | signals [signum - 1].pending = 1; |
|
|
1529 | evpipe_write (EV_A_ &sig_pending); |
|
|
1530 | } |
|
|
1531 | |
934 | static void |
1532 | static void |
935 | ev_sighandler (int signum) |
1533 | ev_sighandler (int signum) |
936 | { |
1534 | { |
937 | #if EV_MULTIPLICITY |
|
|
938 | struct ev_loop *loop = &default_loop_struct; |
|
|
939 | #endif |
|
|
940 | |
|
|
941 | #if _WIN32 |
1535 | #ifdef _WIN32 |
942 | signal (signum, ev_sighandler); |
1536 | signal (signum, ev_sighandler); |
943 | #endif |
1537 | #endif |
944 | |
1538 | |
945 | signals [signum - 1].gotsig = 1; |
1539 | ev_feed_signal (signum); |
946 | evpipe_write (EV_A_ &gotsig); |
|
|
947 | } |
1540 | } |
948 | |
1541 | |
949 | void noinline |
1542 | void noinline |
950 | ev_feed_signal_event (EV_P_ int signum) |
1543 | ev_feed_signal_event (EV_P_ int signum) |
951 | { |
1544 | { |
952 | WL w; |
1545 | WL w; |
953 | |
1546 | |
|
|
1547 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1548 | return; |
|
|
1549 | |
|
|
1550 | --signum; |
|
|
1551 | |
954 | #if EV_MULTIPLICITY |
1552 | #if EV_MULTIPLICITY |
955 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1553 | /* it is permissible to try to feed a signal to the wrong loop */ |
956 | #endif |
1554 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
957 | |
1555 | |
958 | --signum; |
1556 | if (expect_false (signals [signum].loop != EV_A)) |
959 | |
|
|
960 | if (signum < 0 || signum >= signalmax) |
|
|
961 | return; |
1557 | return; |
|
|
1558 | #endif |
962 | |
1559 | |
963 | signals [signum].gotsig = 0; |
1560 | signals [signum].pending = 0; |
964 | |
1561 | |
965 | for (w = signals [signum].head; w; w = w->next) |
1562 | for (w = signals [signum].head; w; w = w->next) |
966 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1563 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
967 | } |
1564 | } |
968 | |
1565 | |
|
|
1566 | #if EV_USE_SIGNALFD |
|
|
1567 | static void |
|
|
1568 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1569 | { |
|
|
1570 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1571 | |
|
|
1572 | for (;;) |
|
|
1573 | { |
|
|
1574 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1575 | |
|
|
1576 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1577 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1578 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1579 | |
|
|
1580 | if (res < (ssize_t)sizeof (si)) |
|
|
1581 | break; |
|
|
1582 | } |
|
|
1583 | } |
|
|
1584 | #endif |
|
|
1585 | |
|
|
1586 | #endif |
|
|
1587 | |
969 | /*****************************************************************************/ |
1588 | /*****************************************************************************/ |
970 | |
1589 | |
|
|
1590 | #if EV_CHILD_ENABLE |
971 | static WL childs [EV_PID_HASHSIZE]; |
1591 | static WL childs [EV_PID_HASHSIZE]; |
972 | |
|
|
973 | #ifndef _WIN32 |
|
|
974 | |
1592 | |
975 | static ev_signal childev; |
1593 | static ev_signal childev; |
976 | |
1594 | |
977 | #ifndef WIFCONTINUED |
1595 | #ifndef WIFCONTINUED |
978 | # define WIFCONTINUED(status) 0 |
1596 | # define WIFCONTINUED(status) 0 |
979 | #endif |
1597 | #endif |
980 | |
1598 | |
981 | void inline_speed |
1599 | /* handle a single child status event */ |
|
|
1600 | inline_speed void |
982 | child_reap (EV_P_ int chain, int pid, int status) |
1601 | child_reap (EV_P_ int chain, int pid, int status) |
983 | { |
1602 | { |
984 | ev_child *w; |
1603 | ev_child *w; |
985 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1604 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
986 | |
1605 | |
987 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1606 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
988 | { |
1607 | { |
989 | if ((w->pid == pid || !w->pid) |
1608 | if ((w->pid == pid || !w->pid) |
990 | && (!traced || (w->flags & 1))) |
1609 | && (!traced || (w->flags & 1))) |
991 | { |
1610 | { |
992 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1611 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
999 | |
1618 | |
1000 | #ifndef WCONTINUED |
1619 | #ifndef WCONTINUED |
1001 | # define WCONTINUED 0 |
1620 | # define WCONTINUED 0 |
1002 | #endif |
1621 | #endif |
1003 | |
1622 | |
|
|
1623 | /* called on sigchld etc., calls waitpid */ |
1004 | static void |
1624 | static void |
1005 | childcb (EV_P_ ev_signal *sw, int revents) |
1625 | childcb (EV_P_ ev_signal *sw, int revents) |
1006 | { |
1626 | { |
1007 | int pid, status; |
1627 | int pid, status; |
1008 | |
1628 | |
… | |
… | |
1016 | /* make sure we are called again until all children have been reaped */ |
1636 | /* make sure we are called again until all children have been reaped */ |
1017 | /* we need to do it this way so that the callback gets called before we continue */ |
1637 | /* we need to do it this way so that the callback gets called before we continue */ |
1018 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1638 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1019 | |
1639 | |
1020 | child_reap (EV_A_ pid, pid, status); |
1640 | child_reap (EV_A_ pid, pid, status); |
1021 | if (EV_PID_HASHSIZE > 1) |
1641 | if ((EV_PID_HASHSIZE) > 1) |
1022 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1642 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1023 | } |
1643 | } |
1024 | |
1644 | |
1025 | #endif |
1645 | #endif |
1026 | |
1646 | |
1027 | /*****************************************************************************/ |
1647 | /*****************************************************************************/ |
1028 | |
1648 | |
|
|
1649 | #if EV_USE_IOCP |
|
|
1650 | # include "ev_iocp.c" |
|
|
1651 | #endif |
1029 | #if EV_USE_PORT |
1652 | #if EV_USE_PORT |
1030 | # include "ev_port.c" |
1653 | # include "ev_port.c" |
1031 | #endif |
1654 | #endif |
1032 | #if EV_USE_KQUEUE |
1655 | #if EV_USE_KQUEUE |
1033 | # include "ev_kqueue.c" |
1656 | # include "ev_kqueue.c" |
… | |
… | |
1040 | #endif |
1663 | #endif |
1041 | #if EV_USE_SELECT |
1664 | #if EV_USE_SELECT |
1042 | # include "ev_select.c" |
1665 | # include "ev_select.c" |
1043 | #endif |
1666 | #endif |
1044 | |
1667 | |
1045 | int |
1668 | int ecb_cold |
1046 | ev_version_major (void) |
1669 | ev_version_major (void) |
1047 | { |
1670 | { |
1048 | return EV_VERSION_MAJOR; |
1671 | return EV_VERSION_MAJOR; |
1049 | } |
1672 | } |
1050 | |
1673 | |
1051 | int |
1674 | int ecb_cold |
1052 | ev_version_minor (void) |
1675 | ev_version_minor (void) |
1053 | { |
1676 | { |
1054 | return EV_VERSION_MINOR; |
1677 | return EV_VERSION_MINOR; |
1055 | } |
1678 | } |
1056 | |
1679 | |
1057 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1680 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1058 | int inline_size |
1681 | int inline_size ecb_cold |
1059 | enable_secure (void) |
1682 | enable_secure (void) |
1060 | { |
1683 | { |
1061 | #ifdef _WIN32 |
1684 | #ifdef _WIN32 |
1062 | return 0; |
1685 | return 0; |
1063 | #else |
1686 | #else |
1064 | return getuid () != geteuid () |
1687 | return getuid () != geteuid () |
1065 | || getgid () != getegid (); |
1688 | || getgid () != getegid (); |
1066 | #endif |
1689 | #endif |
1067 | } |
1690 | } |
1068 | |
1691 | |
1069 | unsigned int |
1692 | unsigned int ecb_cold |
1070 | ev_supported_backends (void) |
1693 | ev_supported_backends (void) |
1071 | { |
1694 | { |
1072 | unsigned int flags = 0; |
1695 | unsigned int flags = 0; |
1073 | |
1696 | |
1074 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1697 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1078 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1701 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1079 | |
1702 | |
1080 | return flags; |
1703 | return flags; |
1081 | } |
1704 | } |
1082 | |
1705 | |
1083 | unsigned int |
1706 | unsigned int ecb_cold |
1084 | ev_recommended_backends (void) |
1707 | ev_recommended_backends (void) |
1085 | { |
1708 | { |
1086 | unsigned int flags = ev_supported_backends (); |
1709 | unsigned int flags = ev_supported_backends (); |
1087 | |
1710 | |
1088 | #ifndef __NetBSD__ |
1711 | #ifndef __NetBSD__ |
1089 | /* kqueue is borked on everything but netbsd apparently */ |
1712 | /* kqueue is borked on everything but netbsd apparently */ |
1090 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1713 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1091 | flags &= ~EVBACKEND_KQUEUE; |
1714 | flags &= ~EVBACKEND_KQUEUE; |
1092 | #endif |
1715 | #endif |
1093 | #ifdef __APPLE__ |
1716 | #ifdef __APPLE__ |
1094 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1717 | /* only select works correctly on that "unix-certified" platform */ |
1095 | flags &= ~EVBACKEND_POLL; |
1718 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1719 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1720 | #endif |
|
|
1721 | #ifdef __FreeBSD__ |
|
|
1722 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1096 | #endif |
1723 | #endif |
1097 | |
1724 | |
1098 | return flags; |
1725 | return flags; |
1099 | } |
1726 | } |
1100 | |
1727 | |
1101 | unsigned int |
1728 | unsigned int ecb_cold |
1102 | ev_embeddable_backends (void) |
1729 | ev_embeddable_backends (void) |
1103 | { |
1730 | { |
1104 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1731 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1105 | |
1732 | |
1106 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1733 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1107 | /* please fix it and tell me how to detect the fix */ |
1734 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1108 | flags &= ~EVBACKEND_EPOLL; |
1735 | flags &= ~EVBACKEND_EPOLL; |
1109 | |
1736 | |
1110 | return flags; |
1737 | return flags; |
1111 | } |
1738 | } |
1112 | |
1739 | |
1113 | unsigned int |
1740 | unsigned int |
1114 | ev_backend (EV_P) |
1741 | ev_backend (EV_P) |
1115 | { |
1742 | { |
1116 | return backend; |
1743 | return backend; |
1117 | } |
1744 | } |
1118 | |
1745 | |
|
|
1746 | #if EV_FEATURE_API |
1119 | unsigned int |
1747 | unsigned int |
1120 | ev_loop_count (EV_P) |
1748 | ev_iteration (EV_P) |
1121 | { |
1749 | { |
1122 | return loop_count; |
1750 | return loop_count; |
|
|
1751 | } |
|
|
1752 | |
|
|
1753 | unsigned int |
|
|
1754 | ev_depth (EV_P) |
|
|
1755 | { |
|
|
1756 | return loop_depth; |
1123 | } |
1757 | } |
1124 | |
1758 | |
1125 | void |
1759 | void |
1126 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1760 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1127 | { |
1761 | { |
… | |
… | |
1132 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1766 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1133 | { |
1767 | { |
1134 | timeout_blocktime = interval; |
1768 | timeout_blocktime = interval; |
1135 | } |
1769 | } |
1136 | |
1770 | |
|
|
1771 | void |
|
|
1772 | ev_set_userdata (EV_P_ void *data) |
|
|
1773 | { |
|
|
1774 | userdata = data; |
|
|
1775 | } |
|
|
1776 | |
|
|
1777 | void * |
|
|
1778 | ev_userdata (EV_P) |
|
|
1779 | { |
|
|
1780 | return userdata; |
|
|
1781 | } |
|
|
1782 | |
|
|
1783 | void |
|
|
1784 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1785 | { |
|
|
1786 | invoke_cb = invoke_pending_cb; |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | void |
|
|
1790 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1791 | { |
|
|
1792 | release_cb = release; |
|
|
1793 | acquire_cb = acquire; |
|
|
1794 | } |
|
|
1795 | #endif |
|
|
1796 | |
|
|
1797 | /* initialise a loop structure, must be zero-initialised */ |
1137 | static void noinline |
1798 | static void noinline ecb_cold |
1138 | loop_init (EV_P_ unsigned int flags) |
1799 | loop_init (EV_P_ unsigned int flags) |
1139 | { |
1800 | { |
1140 | if (!backend) |
1801 | if (!backend) |
1141 | { |
1802 | { |
|
|
1803 | origflags = flags; |
|
|
1804 | |
|
|
1805 | #if EV_USE_REALTIME |
|
|
1806 | if (!have_realtime) |
|
|
1807 | { |
|
|
1808 | struct timespec ts; |
|
|
1809 | |
|
|
1810 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1811 | have_realtime = 1; |
|
|
1812 | } |
|
|
1813 | #endif |
|
|
1814 | |
1142 | #if EV_USE_MONOTONIC |
1815 | #if EV_USE_MONOTONIC |
|
|
1816 | if (!have_monotonic) |
1143 | { |
1817 | { |
1144 | struct timespec ts; |
1818 | struct timespec ts; |
|
|
1819 | |
1145 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1820 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1146 | have_monotonic = 1; |
1821 | have_monotonic = 1; |
1147 | } |
1822 | } |
1148 | #endif |
|
|
1149 | |
|
|
1150 | ev_rt_now = ev_time (); |
|
|
1151 | mn_now = get_clock (); |
|
|
1152 | now_floor = mn_now; |
|
|
1153 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1154 | |
|
|
1155 | io_blocktime = 0.; |
|
|
1156 | timeout_blocktime = 0.; |
|
|
1157 | backend = 0; |
|
|
1158 | backend_fd = -1; |
|
|
1159 | gotasync = 0; |
|
|
1160 | #if EV_USE_INOTIFY |
|
|
1161 | fs_fd = -2; |
|
|
1162 | #endif |
1823 | #endif |
1163 | |
1824 | |
1164 | /* pid check not overridable via env */ |
1825 | /* pid check not overridable via env */ |
1165 | #ifndef _WIN32 |
1826 | #ifndef _WIN32 |
1166 | if (flags & EVFLAG_FORKCHECK) |
1827 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1170 | if (!(flags & EVFLAG_NOENV) |
1831 | if (!(flags & EVFLAG_NOENV) |
1171 | && !enable_secure () |
1832 | && !enable_secure () |
1172 | && getenv ("LIBEV_FLAGS")) |
1833 | && getenv ("LIBEV_FLAGS")) |
1173 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1834 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1174 | |
1835 | |
1175 | if (!(flags & 0x0000ffffUL)) |
1836 | ev_rt_now = ev_time (); |
|
|
1837 | mn_now = get_clock (); |
|
|
1838 | now_floor = mn_now; |
|
|
1839 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1840 | #if EV_FEATURE_API |
|
|
1841 | invoke_cb = ev_invoke_pending; |
|
|
1842 | #endif |
|
|
1843 | |
|
|
1844 | io_blocktime = 0.; |
|
|
1845 | timeout_blocktime = 0.; |
|
|
1846 | backend = 0; |
|
|
1847 | backend_fd = -1; |
|
|
1848 | sig_pending = 0; |
|
|
1849 | #if EV_ASYNC_ENABLE |
|
|
1850 | async_pending = 0; |
|
|
1851 | #endif |
|
|
1852 | pipe_write_skipped = 0; |
|
|
1853 | pipe_write_wanted = 0; |
|
|
1854 | #if EV_USE_INOTIFY |
|
|
1855 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1856 | #endif |
|
|
1857 | #if EV_USE_SIGNALFD |
|
|
1858 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1859 | #endif |
|
|
1860 | |
|
|
1861 | if (!(flags & EVBACKEND_MASK)) |
1176 | flags |= ev_recommended_backends (); |
1862 | flags |= ev_recommended_backends (); |
1177 | |
1863 | |
|
|
1864 | #if EV_USE_IOCP |
|
|
1865 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1866 | #endif |
1178 | #if EV_USE_PORT |
1867 | #if EV_USE_PORT |
1179 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1868 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1180 | #endif |
1869 | #endif |
1181 | #if EV_USE_KQUEUE |
1870 | #if EV_USE_KQUEUE |
1182 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1871 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1189 | #endif |
1878 | #endif |
1190 | #if EV_USE_SELECT |
1879 | #if EV_USE_SELECT |
1191 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1880 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1192 | #endif |
1881 | #endif |
1193 | |
1882 | |
|
|
1883 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1884 | |
|
|
1885 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1194 | ev_init (&pipeev, pipecb); |
1886 | ev_init (&pipe_w, pipecb); |
1195 | ev_set_priority (&pipeev, EV_MAXPRI); |
1887 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1888 | #endif |
1196 | } |
1889 | } |
1197 | } |
1890 | } |
1198 | |
1891 | |
1199 | static void noinline |
1892 | /* free up a loop structure */ |
|
|
1893 | void ecb_cold |
1200 | loop_destroy (EV_P) |
1894 | ev_loop_destroy (EV_P) |
1201 | { |
1895 | { |
1202 | int i; |
1896 | int i; |
1203 | |
1897 | |
|
|
1898 | #if EV_MULTIPLICITY |
|
|
1899 | /* mimic free (0) */ |
|
|
1900 | if (!EV_A) |
|
|
1901 | return; |
|
|
1902 | #endif |
|
|
1903 | |
|
|
1904 | #if EV_CLEANUP_ENABLE |
|
|
1905 | /* queue cleanup watchers (and execute them) */ |
|
|
1906 | if (expect_false (cleanupcnt)) |
|
|
1907 | { |
|
|
1908 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1909 | EV_INVOKE_PENDING; |
|
|
1910 | } |
|
|
1911 | #endif |
|
|
1912 | |
|
|
1913 | #if EV_CHILD_ENABLE |
|
|
1914 | if (ev_is_active (&childev)) |
|
|
1915 | { |
|
|
1916 | ev_ref (EV_A); /* child watcher */ |
|
|
1917 | ev_signal_stop (EV_A_ &childev); |
|
|
1918 | } |
|
|
1919 | #endif |
|
|
1920 | |
1204 | if (ev_is_active (&pipeev)) |
1921 | if (ev_is_active (&pipe_w)) |
1205 | { |
1922 | { |
1206 | ev_ref (EV_A); /* signal watcher */ |
1923 | /*ev_ref (EV_A);*/ |
1207 | ev_io_stop (EV_A_ &pipeev); |
1924 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1208 | |
1925 | |
1209 | #if EV_USE_EVENTFD |
1926 | #if EV_USE_EVENTFD |
1210 | if (evfd >= 0) |
1927 | if (evfd >= 0) |
1211 | close (evfd); |
1928 | close (evfd); |
1212 | #endif |
1929 | #endif |
1213 | |
1930 | |
1214 | if (evpipe [0] >= 0) |
1931 | if (evpipe [0] >= 0) |
1215 | { |
1932 | { |
1216 | close (evpipe [0]); |
1933 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1217 | close (evpipe [1]); |
1934 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1218 | } |
1935 | } |
1219 | } |
1936 | } |
|
|
1937 | |
|
|
1938 | #if EV_USE_SIGNALFD |
|
|
1939 | if (ev_is_active (&sigfd_w)) |
|
|
1940 | close (sigfd); |
|
|
1941 | #endif |
1220 | |
1942 | |
1221 | #if EV_USE_INOTIFY |
1943 | #if EV_USE_INOTIFY |
1222 | if (fs_fd >= 0) |
1944 | if (fs_fd >= 0) |
1223 | close (fs_fd); |
1945 | close (fs_fd); |
1224 | #endif |
1946 | #endif |
1225 | |
1947 | |
1226 | if (backend_fd >= 0) |
1948 | if (backend_fd >= 0) |
1227 | close (backend_fd); |
1949 | close (backend_fd); |
1228 | |
1950 | |
|
|
1951 | #if EV_USE_IOCP |
|
|
1952 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1953 | #endif |
1229 | #if EV_USE_PORT |
1954 | #if EV_USE_PORT |
1230 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1955 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1231 | #endif |
1956 | #endif |
1232 | #if EV_USE_KQUEUE |
1957 | #if EV_USE_KQUEUE |
1233 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1958 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1248 | #if EV_IDLE_ENABLE |
1973 | #if EV_IDLE_ENABLE |
1249 | array_free (idle, [i]); |
1974 | array_free (idle, [i]); |
1250 | #endif |
1975 | #endif |
1251 | } |
1976 | } |
1252 | |
1977 | |
1253 | ev_free (anfds); anfdmax = 0; |
1978 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1254 | |
1979 | |
1255 | /* have to use the microsoft-never-gets-it-right macro */ |
1980 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1981 | array_free (rfeed, EMPTY); |
1256 | array_free (fdchange, EMPTY); |
1982 | array_free (fdchange, EMPTY); |
1257 | array_free (timer, EMPTY); |
1983 | array_free (timer, EMPTY); |
1258 | #if EV_PERIODIC_ENABLE |
1984 | #if EV_PERIODIC_ENABLE |
1259 | array_free (periodic, EMPTY); |
1985 | array_free (periodic, EMPTY); |
1260 | #endif |
1986 | #endif |
1261 | #if EV_FORK_ENABLE |
1987 | #if EV_FORK_ENABLE |
1262 | array_free (fork, EMPTY); |
1988 | array_free (fork, EMPTY); |
1263 | #endif |
1989 | #endif |
|
|
1990 | #if EV_CLEANUP_ENABLE |
|
|
1991 | array_free (cleanup, EMPTY); |
|
|
1992 | #endif |
1264 | array_free (prepare, EMPTY); |
1993 | array_free (prepare, EMPTY); |
1265 | array_free (check, EMPTY); |
1994 | array_free (check, EMPTY); |
1266 | #if EV_ASYNC_ENABLE |
1995 | #if EV_ASYNC_ENABLE |
1267 | array_free (async, EMPTY); |
1996 | array_free (async, EMPTY); |
1268 | #endif |
1997 | #endif |
1269 | |
1998 | |
1270 | backend = 0; |
1999 | backend = 0; |
1271 | } |
|
|
1272 | |
2000 | |
|
|
2001 | #if EV_MULTIPLICITY |
|
|
2002 | if (ev_is_default_loop (EV_A)) |
|
|
2003 | #endif |
|
|
2004 | ev_default_loop_ptr = 0; |
|
|
2005 | #if EV_MULTIPLICITY |
|
|
2006 | else |
|
|
2007 | ev_free (EV_A); |
|
|
2008 | #endif |
|
|
2009 | } |
|
|
2010 | |
|
|
2011 | #if EV_USE_INOTIFY |
1273 | void inline_size infy_fork (EV_P); |
2012 | inline_size void infy_fork (EV_P); |
|
|
2013 | #endif |
1274 | |
2014 | |
1275 | void inline_size |
2015 | inline_size void |
1276 | loop_fork (EV_P) |
2016 | loop_fork (EV_P) |
1277 | { |
2017 | { |
1278 | #if EV_USE_PORT |
2018 | #if EV_USE_PORT |
1279 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2019 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1280 | #endif |
2020 | #endif |
… | |
… | |
1286 | #endif |
2026 | #endif |
1287 | #if EV_USE_INOTIFY |
2027 | #if EV_USE_INOTIFY |
1288 | infy_fork (EV_A); |
2028 | infy_fork (EV_A); |
1289 | #endif |
2029 | #endif |
1290 | |
2030 | |
1291 | if (ev_is_active (&pipeev)) |
2031 | if (ev_is_active (&pipe_w)) |
1292 | { |
2032 | { |
1293 | /* this "locks" the handlers against writing to the pipe */ |
2033 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1294 | /* while we modify the fd vars */ |
|
|
1295 | gotsig = 1; |
|
|
1296 | #if EV_ASYNC_ENABLE |
|
|
1297 | gotasync = 1; |
|
|
1298 | #endif |
|
|
1299 | |
2034 | |
1300 | ev_ref (EV_A); |
2035 | ev_ref (EV_A); |
1301 | ev_io_stop (EV_A_ &pipeev); |
2036 | ev_io_stop (EV_A_ &pipe_w); |
1302 | |
2037 | |
1303 | #if EV_USE_EVENTFD |
2038 | #if EV_USE_EVENTFD |
1304 | if (evfd >= 0) |
2039 | if (evfd >= 0) |
1305 | close (evfd); |
2040 | close (evfd); |
1306 | #endif |
2041 | #endif |
1307 | |
2042 | |
1308 | if (evpipe [0] >= 0) |
2043 | if (evpipe [0] >= 0) |
1309 | { |
2044 | { |
1310 | close (evpipe [0]); |
2045 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1311 | close (evpipe [1]); |
2046 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1312 | } |
2047 | } |
1313 | |
2048 | |
|
|
2049 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1314 | evpipe_init (EV_A); |
2050 | evpipe_init (EV_A); |
1315 | /* now iterate over everything, in case we missed something */ |
2051 | /* now iterate over everything, in case we missed something */ |
1316 | pipecb (EV_A_ &pipeev, EV_READ); |
2052 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2053 | #endif |
1317 | } |
2054 | } |
1318 | |
2055 | |
1319 | postfork = 0; |
2056 | postfork = 0; |
1320 | } |
2057 | } |
1321 | |
2058 | |
1322 | #if EV_MULTIPLICITY |
2059 | #if EV_MULTIPLICITY |
|
|
2060 | |
1323 | struct ev_loop * |
2061 | struct ev_loop * ecb_cold |
1324 | ev_loop_new (unsigned int flags) |
2062 | ev_loop_new (unsigned int flags) |
1325 | { |
2063 | { |
1326 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2064 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1327 | |
2065 | |
1328 | memset (loop, 0, sizeof (struct ev_loop)); |
2066 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1329 | |
|
|
1330 | loop_init (EV_A_ flags); |
2067 | loop_init (EV_A_ flags); |
1331 | |
2068 | |
1332 | if (ev_backend (EV_A)) |
2069 | if (ev_backend (EV_A)) |
1333 | return loop; |
2070 | return EV_A; |
1334 | |
2071 | |
|
|
2072 | ev_free (EV_A); |
1335 | return 0; |
2073 | return 0; |
1336 | } |
2074 | } |
1337 | |
2075 | |
1338 | void |
2076 | #endif /* multiplicity */ |
1339 | ev_loop_destroy (EV_P) |
|
|
1340 | { |
|
|
1341 | loop_destroy (EV_A); |
|
|
1342 | ev_free (loop); |
|
|
1343 | } |
|
|
1344 | |
2077 | |
1345 | void |
2078 | #if EV_VERIFY |
1346 | ev_loop_fork (EV_P) |
2079 | static void noinline ecb_cold |
|
|
2080 | verify_watcher (EV_P_ W w) |
1347 | { |
2081 | { |
1348 | postfork = 1; /* must be in line with ev_default_fork */ |
2082 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1349 | } |
|
|
1350 | |
2083 | |
|
|
2084 | if (w->pending) |
|
|
2085 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | static void noinline ecb_cold |
|
|
2089 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2090 | { |
|
|
2091 | int i; |
|
|
2092 | |
|
|
2093 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2094 | { |
|
|
2095 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2096 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2097 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2098 | |
|
|
2099 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2100 | } |
|
|
2101 | } |
|
|
2102 | |
|
|
2103 | static void noinline ecb_cold |
|
|
2104 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2105 | { |
|
|
2106 | while (cnt--) |
|
|
2107 | { |
|
|
2108 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2109 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2110 | } |
|
|
2111 | } |
|
|
2112 | #endif |
|
|
2113 | |
|
|
2114 | #if EV_FEATURE_API |
|
|
2115 | void ecb_cold |
|
|
2116 | ev_verify (EV_P) |
|
|
2117 | { |
|
|
2118 | #if EV_VERIFY |
|
|
2119 | int i; |
|
|
2120 | WL w; |
|
|
2121 | |
|
|
2122 | assert (activecnt >= -1); |
|
|
2123 | |
|
|
2124 | assert (fdchangemax >= fdchangecnt); |
|
|
2125 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2126 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2127 | |
|
|
2128 | assert (anfdmax >= 0); |
|
|
2129 | for (i = 0; i < anfdmax; ++i) |
|
|
2130 | for (w = anfds [i].head; w; w = w->next) |
|
|
2131 | { |
|
|
2132 | verify_watcher (EV_A_ (W)w); |
|
|
2133 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2134 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2135 | } |
|
|
2136 | |
|
|
2137 | assert (timermax >= timercnt); |
|
|
2138 | verify_heap (EV_A_ timers, timercnt); |
|
|
2139 | |
|
|
2140 | #if EV_PERIODIC_ENABLE |
|
|
2141 | assert (periodicmax >= periodiccnt); |
|
|
2142 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2143 | #endif |
|
|
2144 | |
|
|
2145 | for (i = NUMPRI; i--; ) |
|
|
2146 | { |
|
|
2147 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2148 | #if EV_IDLE_ENABLE |
|
|
2149 | assert (idleall >= 0); |
|
|
2150 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2151 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2152 | #endif |
|
|
2153 | } |
|
|
2154 | |
|
|
2155 | #if EV_FORK_ENABLE |
|
|
2156 | assert (forkmax >= forkcnt); |
|
|
2157 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2158 | #endif |
|
|
2159 | |
|
|
2160 | #if EV_CLEANUP_ENABLE |
|
|
2161 | assert (cleanupmax >= cleanupcnt); |
|
|
2162 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2163 | #endif |
|
|
2164 | |
|
|
2165 | #if EV_ASYNC_ENABLE |
|
|
2166 | assert (asyncmax >= asynccnt); |
|
|
2167 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2168 | #endif |
|
|
2169 | |
|
|
2170 | #if EV_PREPARE_ENABLE |
|
|
2171 | assert (preparemax >= preparecnt); |
|
|
2172 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2173 | #endif |
|
|
2174 | |
|
|
2175 | #if EV_CHECK_ENABLE |
|
|
2176 | assert (checkmax >= checkcnt); |
|
|
2177 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2178 | #endif |
|
|
2179 | |
|
|
2180 | # if 0 |
|
|
2181 | #if EV_CHILD_ENABLE |
|
|
2182 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2183 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2184 | #endif |
|
|
2185 | # endif |
|
|
2186 | #endif |
|
|
2187 | } |
1351 | #endif |
2188 | #endif |
1352 | |
2189 | |
1353 | #if EV_MULTIPLICITY |
2190 | #if EV_MULTIPLICITY |
1354 | struct ev_loop * |
2191 | struct ev_loop * ecb_cold |
1355 | ev_default_loop_init (unsigned int flags) |
|
|
1356 | #else |
2192 | #else |
1357 | int |
2193 | int |
|
|
2194 | #endif |
1358 | ev_default_loop (unsigned int flags) |
2195 | ev_default_loop (unsigned int flags) |
1359 | #endif |
|
|
1360 | { |
2196 | { |
1361 | if (!ev_default_loop_ptr) |
2197 | if (!ev_default_loop_ptr) |
1362 | { |
2198 | { |
1363 | #if EV_MULTIPLICITY |
2199 | #if EV_MULTIPLICITY |
1364 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2200 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1365 | #else |
2201 | #else |
1366 | ev_default_loop_ptr = 1; |
2202 | ev_default_loop_ptr = 1; |
1367 | #endif |
2203 | #endif |
1368 | |
2204 | |
1369 | loop_init (EV_A_ flags); |
2205 | loop_init (EV_A_ flags); |
1370 | |
2206 | |
1371 | if (ev_backend (EV_A)) |
2207 | if (ev_backend (EV_A)) |
1372 | { |
2208 | { |
1373 | #ifndef _WIN32 |
2209 | #if EV_CHILD_ENABLE |
1374 | ev_signal_init (&childev, childcb, SIGCHLD); |
2210 | ev_signal_init (&childev, childcb, SIGCHLD); |
1375 | ev_set_priority (&childev, EV_MAXPRI); |
2211 | ev_set_priority (&childev, EV_MAXPRI); |
1376 | ev_signal_start (EV_A_ &childev); |
2212 | ev_signal_start (EV_A_ &childev); |
1377 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2213 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1378 | #endif |
2214 | #endif |
… | |
… | |
1383 | |
2219 | |
1384 | return ev_default_loop_ptr; |
2220 | return ev_default_loop_ptr; |
1385 | } |
2221 | } |
1386 | |
2222 | |
1387 | void |
2223 | void |
1388 | ev_default_destroy (void) |
2224 | ev_loop_fork (EV_P) |
1389 | { |
2225 | { |
1390 | #if EV_MULTIPLICITY |
|
|
1391 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1392 | #endif |
|
|
1393 | |
|
|
1394 | #ifndef _WIN32 |
|
|
1395 | ev_ref (EV_A); /* child watcher */ |
|
|
1396 | ev_signal_stop (EV_A_ &childev); |
|
|
1397 | #endif |
|
|
1398 | |
|
|
1399 | loop_destroy (EV_A); |
|
|
1400 | } |
|
|
1401 | |
|
|
1402 | void |
|
|
1403 | ev_default_fork (void) |
|
|
1404 | { |
|
|
1405 | #if EV_MULTIPLICITY |
|
|
1406 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1407 | #endif |
|
|
1408 | |
|
|
1409 | if (backend) |
|
|
1410 | postfork = 1; /* must be in line with ev_loop_fork */ |
2226 | postfork = 1; /* must be in line with ev_default_fork */ |
1411 | } |
2227 | } |
1412 | |
2228 | |
1413 | /*****************************************************************************/ |
2229 | /*****************************************************************************/ |
1414 | |
2230 | |
1415 | void |
2231 | void |
1416 | ev_invoke (EV_P_ void *w, int revents) |
2232 | ev_invoke (EV_P_ void *w, int revents) |
1417 | { |
2233 | { |
1418 | EV_CB_INVOKE ((W)w, revents); |
2234 | EV_CB_INVOKE ((W)w, revents); |
1419 | } |
2235 | } |
1420 | |
2236 | |
1421 | void inline_speed |
2237 | unsigned int |
1422 | call_pending (EV_P) |
2238 | ev_pending_count (EV_P) |
|
|
2239 | { |
|
|
2240 | int pri; |
|
|
2241 | unsigned int count = 0; |
|
|
2242 | |
|
|
2243 | for (pri = NUMPRI; pri--; ) |
|
|
2244 | count += pendingcnt [pri]; |
|
|
2245 | |
|
|
2246 | return count; |
|
|
2247 | } |
|
|
2248 | |
|
|
2249 | void noinline |
|
|
2250 | ev_invoke_pending (EV_P) |
1423 | { |
2251 | { |
1424 | int pri; |
2252 | int pri; |
1425 | |
2253 | |
1426 | for (pri = NUMPRI; pri--; ) |
2254 | for (pri = NUMPRI; pri--; ) |
1427 | while (pendingcnt [pri]) |
2255 | while (pendingcnt [pri]) |
1428 | { |
2256 | { |
1429 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2257 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1430 | |
2258 | |
1431 | if (expect_true (p->w)) |
|
|
1432 | { |
|
|
1433 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1434 | |
|
|
1435 | p->w->pending = 0; |
2259 | p->w->pending = 0; |
1436 | EV_CB_INVOKE (p->w, p->events); |
2260 | EV_CB_INVOKE (p->w, p->events); |
1437 | } |
2261 | EV_FREQUENT_CHECK; |
1438 | } |
2262 | } |
1439 | } |
2263 | } |
1440 | |
2264 | |
1441 | void inline_size |
|
|
1442 | timers_reify (EV_P) |
|
|
1443 | { |
|
|
1444 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1445 | { |
|
|
1446 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1447 | |
|
|
1448 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1449 | |
|
|
1450 | /* first reschedule or stop timer */ |
|
|
1451 | if (w->repeat) |
|
|
1452 | { |
|
|
1453 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1454 | |
|
|
1455 | ((WT)w)->at += w->repeat; |
|
|
1456 | if (((WT)w)->at < mn_now) |
|
|
1457 | ((WT)w)->at = mn_now; |
|
|
1458 | |
|
|
1459 | downheap (timers, timercnt, 0); |
|
|
1460 | } |
|
|
1461 | else |
|
|
1462 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1463 | |
|
|
1464 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1465 | } |
|
|
1466 | } |
|
|
1467 | |
|
|
1468 | #if EV_PERIODIC_ENABLE |
|
|
1469 | void inline_size |
|
|
1470 | periodics_reify (EV_P) |
|
|
1471 | { |
|
|
1472 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1473 | { |
|
|
1474 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1475 | |
|
|
1476 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1477 | |
|
|
1478 | /* first reschedule or stop timer */ |
|
|
1479 | if (w->reschedule_cb) |
|
|
1480 | { |
|
|
1481 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1482 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1483 | downheap (periodics, periodiccnt, 0); |
|
|
1484 | } |
|
|
1485 | else if (w->interval) |
|
|
1486 | { |
|
|
1487 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1488 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1489 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1490 | downheap (periodics, periodiccnt, 0); |
|
|
1491 | } |
|
|
1492 | else |
|
|
1493 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1494 | |
|
|
1495 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1496 | } |
|
|
1497 | } |
|
|
1498 | |
|
|
1499 | static void noinline |
|
|
1500 | periodics_reschedule (EV_P) |
|
|
1501 | { |
|
|
1502 | int i; |
|
|
1503 | |
|
|
1504 | /* adjust periodics after time jump */ |
|
|
1505 | for (i = 0; i < periodiccnt; ++i) |
|
|
1506 | { |
|
|
1507 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1508 | |
|
|
1509 | if (w->reschedule_cb) |
|
|
1510 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1511 | else if (w->interval) |
|
|
1512 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1513 | } |
|
|
1514 | |
|
|
1515 | /* now rebuild the heap */ |
|
|
1516 | for (i = periodiccnt >> 1; i--; ) |
|
|
1517 | downheap (periodics, periodiccnt, i); |
|
|
1518 | } |
|
|
1519 | #endif |
|
|
1520 | |
|
|
1521 | #if EV_IDLE_ENABLE |
2265 | #if EV_IDLE_ENABLE |
1522 | void inline_size |
2266 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2267 | /* only when higher priorities are idle" logic */ |
|
|
2268 | inline_size void |
1523 | idle_reify (EV_P) |
2269 | idle_reify (EV_P) |
1524 | { |
2270 | { |
1525 | if (expect_false (idleall)) |
2271 | if (expect_false (idleall)) |
1526 | { |
2272 | { |
1527 | int pri; |
2273 | int pri; |
… | |
… | |
1539 | } |
2285 | } |
1540 | } |
2286 | } |
1541 | } |
2287 | } |
1542 | #endif |
2288 | #endif |
1543 | |
2289 | |
1544 | void inline_speed |
2290 | /* make timers pending */ |
|
|
2291 | inline_size void |
|
|
2292 | timers_reify (EV_P) |
|
|
2293 | { |
|
|
2294 | EV_FREQUENT_CHECK; |
|
|
2295 | |
|
|
2296 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2297 | { |
|
|
2298 | do |
|
|
2299 | { |
|
|
2300 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2301 | |
|
|
2302 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2303 | |
|
|
2304 | /* first reschedule or stop timer */ |
|
|
2305 | if (w->repeat) |
|
|
2306 | { |
|
|
2307 | ev_at (w) += w->repeat; |
|
|
2308 | if (ev_at (w) < mn_now) |
|
|
2309 | ev_at (w) = mn_now; |
|
|
2310 | |
|
|
2311 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2312 | |
|
|
2313 | ANHE_at_cache (timers [HEAP0]); |
|
|
2314 | downheap (timers, timercnt, HEAP0); |
|
|
2315 | } |
|
|
2316 | else |
|
|
2317 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2318 | |
|
|
2319 | EV_FREQUENT_CHECK; |
|
|
2320 | feed_reverse (EV_A_ (W)w); |
|
|
2321 | } |
|
|
2322 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2323 | |
|
|
2324 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2325 | } |
|
|
2326 | } |
|
|
2327 | |
|
|
2328 | #if EV_PERIODIC_ENABLE |
|
|
2329 | |
|
|
2330 | static void noinline |
|
|
2331 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2332 | { |
|
|
2333 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2334 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2335 | |
|
|
2336 | /* the above almost always errs on the low side */ |
|
|
2337 | while (at <= ev_rt_now) |
|
|
2338 | { |
|
|
2339 | ev_tstamp nat = at + w->interval; |
|
|
2340 | |
|
|
2341 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2342 | if (expect_false (nat == at)) |
|
|
2343 | { |
|
|
2344 | at = ev_rt_now; |
|
|
2345 | break; |
|
|
2346 | } |
|
|
2347 | |
|
|
2348 | at = nat; |
|
|
2349 | } |
|
|
2350 | |
|
|
2351 | ev_at (w) = at; |
|
|
2352 | } |
|
|
2353 | |
|
|
2354 | /* make periodics pending */ |
|
|
2355 | inline_size void |
|
|
2356 | periodics_reify (EV_P) |
|
|
2357 | { |
|
|
2358 | EV_FREQUENT_CHECK; |
|
|
2359 | |
|
|
2360 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2361 | { |
|
|
2362 | int feed_count = 0; |
|
|
2363 | |
|
|
2364 | do |
|
|
2365 | { |
|
|
2366 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2367 | |
|
|
2368 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2369 | |
|
|
2370 | /* first reschedule or stop timer */ |
|
|
2371 | if (w->reschedule_cb) |
|
|
2372 | { |
|
|
2373 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2374 | |
|
|
2375 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2376 | |
|
|
2377 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2378 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2379 | } |
|
|
2380 | else if (w->interval) |
|
|
2381 | { |
|
|
2382 | periodic_recalc (EV_A_ w); |
|
|
2383 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2384 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2385 | } |
|
|
2386 | else |
|
|
2387 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2388 | |
|
|
2389 | EV_FREQUENT_CHECK; |
|
|
2390 | feed_reverse (EV_A_ (W)w); |
|
|
2391 | } |
|
|
2392 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2393 | |
|
|
2394 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2395 | } |
|
|
2396 | } |
|
|
2397 | |
|
|
2398 | /* simply recalculate all periodics */ |
|
|
2399 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2400 | static void noinline ecb_cold |
|
|
2401 | periodics_reschedule (EV_P) |
|
|
2402 | { |
|
|
2403 | int i; |
|
|
2404 | |
|
|
2405 | /* adjust periodics after time jump */ |
|
|
2406 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2407 | { |
|
|
2408 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2409 | |
|
|
2410 | if (w->reschedule_cb) |
|
|
2411 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2412 | else if (w->interval) |
|
|
2413 | periodic_recalc (EV_A_ w); |
|
|
2414 | |
|
|
2415 | ANHE_at_cache (periodics [i]); |
|
|
2416 | } |
|
|
2417 | |
|
|
2418 | reheap (periodics, periodiccnt); |
|
|
2419 | } |
|
|
2420 | #endif |
|
|
2421 | |
|
|
2422 | /* adjust all timers by a given offset */ |
|
|
2423 | static void noinline ecb_cold |
|
|
2424 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2425 | { |
|
|
2426 | int i; |
|
|
2427 | |
|
|
2428 | for (i = 0; i < timercnt; ++i) |
|
|
2429 | { |
|
|
2430 | ANHE *he = timers + i + HEAP0; |
|
|
2431 | ANHE_w (*he)->at += adjust; |
|
|
2432 | ANHE_at_cache (*he); |
|
|
2433 | } |
|
|
2434 | } |
|
|
2435 | |
|
|
2436 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2437 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2438 | inline_speed void |
1545 | time_update (EV_P_ ev_tstamp max_block) |
2439 | time_update (EV_P_ ev_tstamp max_block) |
1546 | { |
2440 | { |
1547 | int i; |
|
|
1548 | |
|
|
1549 | #if EV_USE_MONOTONIC |
2441 | #if EV_USE_MONOTONIC |
1550 | if (expect_true (have_monotonic)) |
2442 | if (expect_true (have_monotonic)) |
1551 | { |
2443 | { |
|
|
2444 | int i; |
1552 | ev_tstamp odiff = rtmn_diff; |
2445 | ev_tstamp odiff = rtmn_diff; |
1553 | |
2446 | |
1554 | mn_now = get_clock (); |
2447 | mn_now = get_clock (); |
1555 | |
2448 | |
1556 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2449 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1572 | * doesn't hurt either as we only do this on time-jumps or |
2465 | * doesn't hurt either as we only do this on time-jumps or |
1573 | * in the unlikely event of having been preempted here. |
2466 | * in the unlikely event of having been preempted here. |
1574 | */ |
2467 | */ |
1575 | for (i = 4; --i; ) |
2468 | for (i = 4; --i; ) |
1576 | { |
2469 | { |
|
|
2470 | ev_tstamp diff; |
1577 | rtmn_diff = ev_rt_now - mn_now; |
2471 | rtmn_diff = ev_rt_now - mn_now; |
1578 | |
2472 | |
1579 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2473 | diff = odiff - rtmn_diff; |
|
|
2474 | |
|
|
2475 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1580 | return; /* all is well */ |
2476 | return; /* all is well */ |
1581 | |
2477 | |
1582 | ev_rt_now = ev_time (); |
2478 | ev_rt_now = ev_time (); |
1583 | mn_now = get_clock (); |
2479 | mn_now = get_clock (); |
1584 | now_floor = mn_now; |
2480 | now_floor = mn_now; |
1585 | } |
2481 | } |
1586 | |
2482 | |
|
|
2483 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2484 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1587 | # if EV_PERIODIC_ENABLE |
2485 | # if EV_PERIODIC_ENABLE |
1588 | periodics_reschedule (EV_A); |
2486 | periodics_reschedule (EV_A); |
1589 | # endif |
2487 | # endif |
1590 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1591 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1592 | } |
2488 | } |
1593 | else |
2489 | else |
1594 | #endif |
2490 | #endif |
1595 | { |
2491 | { |
1596 | ev_rt_now = ev_time (); |
2492 | ev_rt_now = ev_time (); |
1597 | |
2493 | |
1598 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2494 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1599 | { |
2495 | { |
|
|
2496 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2497 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1600 | #if EV_PERIODIC_ENABLE |
2498 | #if EV_PERIODIC_ENABLE |
1601 | periodics_reschedule (EV_A); |
2499 | periodics_reschedule (EV_A); |
1602 | #endif |
2500 | #endif |
1603 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1604 | for (i = 0; i < timercnt; ++i) |
|
|
1605 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1606 | } |
2501 | } |
1607 | |
2502 | |
1608 | mn_now = ev_rt_now; |
2503 | mn_now = ev_rt_now; |
1609 | } |
2504 | } |
1610 | } |
2505 | } |
1611 | |
2506 | |
1612 | void |
2507 | void |
1613 | ev_ref (EV_P) |
|
|
1614 | { |
|
|
1615 | ++activecnt; |
|
|
1616 | } |
|
|
1617 | |
|
|
1618 | void |
|
|
1619 | ev_unref (EV_P) |
|
|
1620 | { |
|
|
1621 | --activecnt; |
|
|
1622 | } |
|
|
1623 | |
|
|
1624 | static int loop_done; |
|
|
1625 | |
|
|
1626 | void |
|
|
1627 | ev_loop (EV_P_ int flags) |
2508 | ev_run (EV_P_ int flags) |
1628 | { |
2509 | { |
|
|
2510 | #if EV_FEATURE_API |
|
|
2511 | ++loop_depth; |
|
|
2512 | #endif |
|
|
2513 | |
|
|
2514 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2515 | |
1629 | loop_done = EVUNLOOP_CANCEL; |
2516 | loop_done = EVBREAK_CANCEL; |
1630 | |
2517 | |
1631 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2518 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1632 | |
2519 | |
1633 | do |
2520 | do |
1634 | { |
2521 | { |
|
|
2522 | #if EV_VERIFY >= 2 |
|
|
2523 | ev_verify (EV_A); |
|
|
2524 | #endif |
|
|
2525 | |
1635 | #ifndef _WIN32 |
2526 | #ifndef _WIN32 |
1636 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2527 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1637 | if (expect_false (getpid () != curpid)) |
2528 | if (expect_false (getpid () != curpid)) |
1638 | { |
2529 | { |
1639 | curpid = getpid (); |
2530 | curpid = getpid (); |
… | |
… | |
1645 | /* we might have forked, so queue fork handlers */ |
2536 | /* we might have forked, so queue fork handlers */ |
1646 | if (expect_false (postfork)) |
2537 | if (expect_false (postfork)) |
1647 | if (forkcnt) |
2538 | if (forkcnt) |
1648 | { |
2539 | { |
1649 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2540 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1650 | call_pending (EV_A); |
2541 | EV_INVOKE_PENDING; |
1651 | } |
2542 | } |
1652 | #endif |
2543 | #endif |
1653 | |
2544 | |
|
|
2545 | #if EV_PREPARE_ENABLE |
1654 | /* queue prepare watchers (and execute them) */ |
2546 | /* queue prepare watchers (and execute them) */ |
1655 | if (expect_false (preparecnt)) |
2547 | if (expect_false (preparecnt)) |
1656 | { |
2548 | { |
1657 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2549 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1658 | call_pending (EV_A); |
2550 | EV_INVOKE_PENDING; |
1659 | } |
2551 | } |
|
|
2552 | #endif |
1660 | |
2553 | |
1661 | if (expect_false (!activecnt)) |
2554 | if (expect_false (loop_done)) |
1662 | break; |
2555 | break; |
1663 | |
2556 | |
1664 | /* we might have forked, so reify kernel state if necessary */ |
2557 | /* we might have forked, so reify kernel state if necessary */ |
1665 | if (expect_false (postfork)) |
2558 | if (expect_false (postfork)) |
1666 | loop_fork (EV_A); |
2559 | loop_fork (EV_A); |
… | |
… | |
1671 | /* calculate blocking time */ |
2564 | /* calculate blocking time */ |
1672 | { |
2565 | { |
1673 | ev_tstamp waittime = 0.; |
2566 | ev_tstamp waittime = 0.; |
1674 | ev_tstamp sleeptime = 0.; |
2567 | ev_tstamp sleeptime = 0.; |
1675 | |
2568 | |
|
|
2569 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2570 | ev_tstamp prev_mn_now = mn_now; |
|
|
2571 | |
|
|
2572 | /* update time to cancel out callback processing overhead */ |
|
|
2573 | time_update (EV_A_ 1e100); |
|
|
2574 | |
|
|
2575 | /* from now on, we want a pipe-wake-up */ |
|
|
2576 | pipe_write_wanted = 1; |
|
|
2577 | |
1676 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2578 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1677 | { |
2579 | { |
1678 | /* update time to cancel out callback processing overhead */ |
|
|
1679 | time_update (EV_A_ 1e100); |
|
|
1680 | |
|
|
1681 | waittime = MAX_BLOCKTIME; |
2580 | waittime = MAX_BLOCKTIME; |
1682 | |
2581 | |
1683 | if (timercnt) |
2582 | if (timercnt) |
1684 | { |
2583 | { |
1685 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2584 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1686 | if (waittime > to) waittime = to; |
2585 | if (waittime > to) waittime = to; |
1687 | } |
2586 | } |
1688 | |
2587 | |
1689 | #if EV_PERIODIC_ENABLE |
2588 | #if EV_PERIODIC_ENABLE |
1690 | if (periodiccnt) |
2589 | if (periodiccnt) |
1691 | { |
2590 | { |
1692 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2591 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1693 | if (waittime > to) waittime = to; |
2592 | if (waittime > to) waittime = to; |
1694 | } |
2593 | } |
1695 | #endif |
2594 | #endif |
1696 | |
2595 | |
|
|
2596 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1697 | if (expect_false (waittime < timeout_blocktime)) |
2597 | if (expect_false (waittime < timeout_blocktime)) |
1698 | waittime = timeout_blocktime; |
2598 | waittime = timeout_blocktime; |
1699 | |
2599 | |
1700 | sleeptime = waittime - backend_fudge; |
2600 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
2601 | /* to pass a minimum nonzero value to the backend */ |
|
|
2602 | if (expect_false (waittime < backend_mintime)) |
|
|
2603 | waittime = backend_mintime; |
1701 | |
2604 | |
|
|
2605 | /* extra check because io_blocktime is commonly 0 */ |
1702 | if (expect_true (sleeptime > io_blocktime)) |
2606 | if (expect_false (io_blocktime)) |
1703 | sleeptime = io_blocktime; |
|
|
1704 | |
|
|
1705 | if (sleeptime) |
|
|
1706 | { |
2607 | { |
|
|
2608 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2609 | |
|
|
2610 | if (sleeptime > waittime - backend_mintime) |
|
|
2611 | sleeptime = waittime - backend_mintime; |
|
|
2612 | |
|
|
2613 | if (expect_true (sleeptime > 0.)) |
|
|
2614 | { |
1707 | ev_sleep (sleeptime); |
2615 | ev_sleep (sleeptime); |
1708 | waittime -= sleeptime; |
2616 | waittime -= sleeptime; |
|
|
2617 | } |
1709 | } |
2618 | } |
1710 | } |
2619 | } |
1711 | |
2620 | |
|
|
2621 | #if EV_FEATURE_API |
1712 | ++loop_count; |
2622 | ++loop_count; |
|
|
2623 | #endif |
|
|
2624 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1713 | backend_poll (EV_A_ waittime); |
2625 | backend_poll (EV_A_ waittime); |
|
|
2626 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2627 | |
|
|
2628 | pipe_write_wanted = 0; |
|
|
2629 | |
|
|
2630 | if (pipe_write_skipped) |
|
|
2631 | { |
|
|
2632 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
2633 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
2634 | } |
|
|
2635 | |
1714 | |
2636 | |
1715 | /* update ev_rt_now, do magic */ |
2637 | /* update ev_rt_now, do magic */ |
1716 | time_update (EV_A_ waittime + sleeptime); |
2638 | time_update (EV_A_ waittime + sleeptime); |
1717 | } |
2639 | } |
1718 | |
2640 | |
… | |
… | |
1725 | #if EV_IDLE_ENABLE |
2647 | #if EV_IDLE_ENABLE |
1726 | /* queue idle watchers unless other events are pending */ |
2648 | /* queue idle watchers unless other events are pending */ |
1727 | idle_reify (EV_A); |
2649 | idle_reify (EV_A); |
1728 | #endif |
2650 | #endif |
1729 | |
2651 | |
|
|
2652 | #if EV_CHECK_ENABLE |
1730 | /* queue check watchers, to be executed first */ |
2653 | /* queue check watchers, to be executed first */ |
1731 | if (expect_false (checkcnt)) |
2654 | if (expect_false (checkcnt)) |
1732 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2655 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2656 | #endif |
1733 | |
2657 | |
1734 | call_pending (EV_A); |
2658 | EV_INVOKE_PENDING; |
1735 | } |
2659 | } |
1736 | while (expect_true ( |
2660 | while (expect_true ( |
1737 | activecnt |
2661 | activecnt |
1738 | && !loop_done |
2662 | && !loop_done |
1739 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2663 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
1740 | )); |
2664 | )); |
1741 | |
2665 | |
1742 | if (loop_done == EVUNLOOP_ONE) |
2666 | if (loop_done == EVBREAK_ONE) |
1743 | loop_done = EVUNLOOP_CANCEL; |
2667 | loop_done = EVBREAK_CANCEL; |
|
|
2668 | |
|
|
2669 | #if EV_FEATURE_API |
|
|
2670 | --loop_depth; |
|
|
2671 | #endif |
1744 | } |
2672 | } |
1745 | |
2673 | |
1746 | void |
2674 | void |
1747 | ev_unloop (EV_P_ int how) |
2675 | ev_break (EV_P_ int how) |
1748 | { |
2676 | { |
1749 | loop_done = how; |
2677 | loop_done = how; |
1750 | } |
2678 | } |
1751 | |
2679 | |
|
|
2680 | void |
|
|
2681 | ev_ref (EV_P) |
|
|
2682 | { |
|
|
2683 | ++activecnt; |
|
|
2684 | } |
|
|
2685 | |
|
|
2686 | void |
|
|
2687 | ev_unref (EV_P) |
|
|
2688 | { |
|
|
2689 | --activecnt; |
|
|
2690 | } |
|
|
2691 | |
|
|
2692 | void |
|
|
2693 | ev_now_update (EV_P) |
|
|
2694 | { |
|
|
2695 | time_update (EV_A_ 1e100); |
|
|
2696 | } |
|
|
2697 | |
|
|
2698 | void |
|
|
2699 | ev_suspend (EV_P) |
|
|
2700 | { |
|
|
2701 | ev_now_update (EV_A); |
|
|
2702 | } |
|
|
2703 | |
|
|
2704 | void |
|
|
2705 | ev_resume (EV_P) |
|
|
2706 | { |
|
|
2707 | ev_tstamp mn_prev = mn_now; |
|
|
2708 | |
|
|
2709 | ev_now_update (EV_A); |
|
|
2710 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2711 | #if EV_PERIODIC_ENABLE |
|
|
2712 | /* TODO: really do this? */ |
|
|
2713 | periodics_reschedule (EV_A); |
|
|
2714 | #endif |
|
|
2715 | } |
|
|
2716 | |
1752 | /*****************************************************************************/ |
2717 | /*****************************************************************************/ |
|
|
2718 | /* singly-linked list management, used when the expected list length is short */ |
1753 | |
2719 | |
1754 | void inline_size |
2720 | inline_size void |
1755 | wlist_add (WL *head, WL elem) |
2721 | wlist_add (WL *head, WL elem) |
1756 | { |
2722 | { |
1757 | elem->next = *head; |
2723 | elem->next = *head; |
1758 | *head = elem; |
2724 | *head = elem; |
1759 | } |
2725 | } |
1760 | |
2726 | |
1761 | void inline_size |
2727 | inline_size void |
1762 | wlist_del (WL *head, WL elem) |
2728 | wlist_del (WL *head, WL elem) |
1763 | { |
2729 | { |
1764 | while (*head) |
2730 | while (*head) |
1765 | { |
2731 | { |
1766 | if (*head == elem) |
2732 | if (expect_true (*head == elem)) |
1767 | { |
2733 | { |
1768 | *head = elem->next; |
2734 | *head = elem->next; |
1769 | return; |
2735 | break; |
1770 | } |
2736 | } |
1771 | |
2737 | |
1772 | head = &(*head)->next; |
2738 | head = &(*head)->next; |
1773 | } |
2739 | } |
1774 | } |
2740 | } |
1775 | |
2741 | |
1776 | void inline_speed |
2742 | /* internal, faster, version of ev_clear_pending */ |
|
|
2743 | inline_speed void |
1777 | clear_pending (EV_P_ W w) |
2744 | clear_pending (EV_P_ W w) |
1778 | { |
2745 | { |
1779 | if (w->pending) |
2746 | if (w->pending) |
1780 | { |
2747 | { |
1781 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2748 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1782 | w->pending = 0; |
2749 | w->pending = 0; |
1783 | } |
2750 | } |
1784 | } |
2751 | } |
1785 | |
2752 | |
1786 | int |
2753 | int |
… | |
… | |
1790 | int pending = w_->pending; |
2757 | int pending = w_->pending; |
1791 | |
2758 | |
1792 | if (expect_true (pending)) |
2759 | if (expect_true (pending)) |
1793 | { |
2760 | { |
1794 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2761 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2762 | p->w = (W)&pending_w; |
1795 | w_->pending = 0; |
2763 | w_->pending = 0; |
1796 | p->w = 0; |
|
|
1797 | return p->events; |
2764 | return p->events; |
1798 | } |
2765 | } |
1799 | else |
2766 | else |
1800 | return 0; |
2767 | return 0; |
1801 | } |
2768 | } |
1802 | |
2769 | |
1803 | void inline_size |
2770 | inline_size void |
1804 | pri_adjust (EV_P_ W w) |
2771 | pri_adjust (EV_P_ W w) |
1805 | { |
2772 | { |
1806 | int pri = w->priority; |
2773 | int pri = ev_priority (w); |
1807 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2774 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1808 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2775 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1809 | w->priority = pri; |
2776 | ev_set_priority (w, pri); |
1810 | } |
2777 | } |
1811 | |
2778 | |
1812 | void inline_speed |
2779 | inline_speed void |
1813 | ev_start (EV_P_ W w, int active) |
2780 | ev_start (EV_P_ W w, int active) |
1814 | { |
2781 | { |
1815 | pri_adjust (EV_A_ w); |
2782 | pri_adjust (EV_A_ w); |
1816 | w->active = active; |
2783 | w->active = active; |
1817 | ev_ref (EV_A); |
2784 | ev_ref (EV_A); |
1818 | } |
2785 | } |
1819 | |
2786 | |
1820 | void inline_size |
2787 | inline_size void |
1821 | ev_stop (EV_P_ W w) |
2788 | ev_stop (EV_P_ W w) |
1822 | { |
2789 | { |
1823 | ev_unref (EV_A); |
2790 | ev_unref (EV_A); |
1824 | w->active = 0; |
2791 | w->active = 0; |
1825 | } |
2792 | } |
… | |
… | |
1832 | int fd = w->fd; |
2799 | int fd = w->fd; |
1833 | |
2800 | |
1834 | if (expect_false (ev_is_active (w))) |
2801 | if (expect_false (ev_is_active (w))) |
1835 | return; |
2802 | return; |
1836 | |
2803 | |
1837 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2804 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2805 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2806 | |
|
|
2807 | EV_FREQUENT_CHECK; |
1838 | |
2808 | |
1839 | ev_start (EV_A_ (W)w, 1); |
2809 | ev_start (EV_A_ (W)w, 1); |
1840 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2810 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1841 | wlist_add (&anfds[fd].head, (WL)w); |
2811 | wlist_add (&anfds[fd].head, (WL)w); |
1842 | |
2812 | |
1843 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2813 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1844 | w->events &= ~EV_IOFDSET; |
2814 | w->events &= ~EV__IOFDSET; |
|
|
2815 | |
|
|
2816 | EV_FREQUENT_CHECK; |
1845 | } |
2817 | } |
1846 | |
2818 | |
1847 | void noinline |
2819 | void noinline |
1848 | ev_io_stop (EV_P_ ev_io *w) |
2820 | ev_io_stop (EV_P_ ev_io *w) |
1849 | { |
2821 | { |
1850 | clear_pending (EV_A_ (W)w); |
2822 | clear_pending (EV_A_ (W)w); |
1851 | if (expect_false (!ev_is_active (w))) |
2823 | if (expect_false (!ev_is_active (w))) |
1852 | return; |
2824 | return; |
1853 | |
2825 | |
1854 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2826 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2827 | |
|
|
2828 | EV_FREQUENT_CHECK; |
1855 | |
2829 | |
1856 | wlist_del (&anfds[w->fd].head, (WL)w); |
2830 | wlist_del (&anfds[w->fd].head, (WL)w); |
1857 | ev_stop (EV_A_ (W)w); |
2831 | ev_stop (EV_A_ (W)w); |
1858 | |
2832 | |
1859 | fd_change (EV_A_ w->fd, 1); |
2833 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
2834 | |
|
|
2835 | EV_FREQUENT_CHECK; |
1860 | } |
2836 | } |
1861 | |
2837 | |
1862 | void noinline |
2838 | void noinline |
1863 | ev_timer_start (EV_P_ ev_timer *w) |
2839 | ev_timer_start (EV_P_ ev_timer *w) |
1864 | { |
2840 | { |
1865 | if (expect_false (ev_is_active (w))) |
2841 | if (expect_false (ev_is_active (w))) |
1866 | return; |
2842 | return; |
1867 | |
2843 | |
1868 | ((WT)w)->at += mn_now; |
2844 | ev_at (w) += mn_now; |
1869 | |
2845 | |
1870 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2846 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1871 | |
2847 | |
|
|
2848 | EV_FREQUENT_CHECK; |
|
|
2849 | |
|
|
2850 | ++timercnt; |
1872 | ev_start (EV_A_ (W)w, ++timercnt); |
2851 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1873 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2852 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1874 | timers [timercnt - 1] = (WT)w; |
2853 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1875 | upheap (timers, timercnt - 1); |
2854 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2855 | upheap (timers, ev_active (w)); |
1876 | |
2856 | |
|
|
2857 | EV_FREQUENT_CHECK; |
|
|
2858 | |
1877 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2859 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1878 | } |
2860 | } |
1879 | |
2861 | |
1880 | void noinline |
2862 | void noinline |
1881 | ev_timer_stop (EV_P_ ev_timer *w) |
2863 | ev_timer_stop (EV_P_ ev_timer *w) |
1882 | { |
2864 | { |
1883 | clear_pending (EV_A_ (W)w); |
2865 | clear_pending (EV_A_ (W)w); |
1884 | if (expect_false (!ev_is_active (w))) |
2866 | if (expect_false (!ev_is_active (w))) |
1885 | return; |
2867 | return; |
1886 | |
2868 | |
1887 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2869 | EV_FREQUENT_CHECK; |
1888 | |
2870 | |
1889 | { |
2871 | { |
1890 | int active = ((W)w)->active; |
2872 | int active = ev_active (w); |
1891 | |
2873 | |
|
|
2874 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2875 | |
|
|
2876 | --timercnt; |
|
|
2877 | |
1892 | if (expect_true (--active < --timercnt)) |
2878 | if (expect_true (active < timercnt + HEAP0)) |
1893 | { |
2879 | { |
1894 | timers [active] = timers [timercnt]; |
2880 | timers [active] = timers [timercnt + HEAP0]; |
1895 | adjustheap (timers, timercnt, active); |
2881 | adjustheap (timers, timercnt, active); |
1896 | } |
2882 | } |
1897 | } |
2883 | } |
1898 | |
2884 | |
1899 | ((WT)w)->at -= mn_now; |
2885 | ev_at (w) -= mn_now; |
1900 | |
2886 | |
1901 | ev_stop (EV_A_ (W)w); |
2887 | ev_stop (EV_A_ (W)w); |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
1902 | } |
2890 | } |
1903 | |
2891 | |
1904 | void noinline |
2892 | void noinline |
1905 | ev_timer_again (EV_P_ ev_timer *w) |
2893 | ev_timer_again (EV_P_ ev_timer *w) |
1906 | { |
2894 | { |
|
|
2895 | EV_FREQUENT_CHECK; |
|
|
2896 | |
1907 | if (ev_is_active (w)) |
2897 | if (ev_is_active (w)) |
1908 | { |
2898 | { |
1909 | if (w->repeat) |
2899 | if (w->repeat) |
1910 | { |
2900 | { |
1911 | ((WT)w)->at = mn_now + w->repeat; |
2901 | ev_at (w) = mn_now + w->repeat; |
|
|
2902 | ANHE_at_cache (timers [ev_active (w)]); |
1912 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2903 | adjustheap (timers, timercnt, ev_active (w)); |
1913 | } |
2904 | } |
1914 | else |
2905 | else |
1915 | ev_timer_stop (EV_A_ w); |
2906 | ev_timer_stop (EV_A_ w); |
1916 | } |
2907 | } |
1917 | else if (w->repeat) |
2908 | else if (w->repeat) |
1918 | { |
2909 | { |
1919 | w->at = w->repeat; |
2910 | ev_at (w) = w->repeat; |
1920 | ev_timer_start (EV_A_ w); |
2911 | ev_timer_start (EV_A_ w); |
1921 | } |
2912 | } |
|
|
2913 | |
|
|
2914 | EV_FREQUENT_CHECK; |
|
|
2915 | } |
|
|
2916 | |
|
|
2917 | ev_tstamp |
|
|
2918 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2919 | { |
|
|
2920 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1922 | } |
2921 | } |
1923 | |
2922 | |
1924 | #if EV_PERIODIC_ENABLE |
2923 | #if EV_PERIODIC_ENABLE |
1925 | void noinline |
2924 | void noinline |
1926 | ev_periodic_start (EV_P_ ev_periodic *w) |
2925 | ev_periodic_start (EV_P_ ev_periodic *w) |
1927 | { |
2926 | { |
1928 | if (expect_false (ev_is_active (w))) |
2927 | if (expect_false (ev_is_active (w))) |
1929 | return; |
2928 | return; |
1930 | |
2929 | |
1931 | if (w->reschedule_cb) |
2930 | if (w->reschedule_cb) |
1932 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2931 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1933 | else if (w->interval) |
2932 | else if (w->interval) |
1934 | { |
2933 | { |
1935 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2934 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1936 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2935 | periodic_recalc (EV_A_ w); |
1937 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1938 | } |
2936 | } |
1939 | else |
2937 | else |
1940 | ((WT)w)->at = w->offset; |
2938 | ev_at (w) = w->offset; |
1941 | |
2939 | |
|
|
2940 | EV_FREQUENT_CHECK; |
|
|
2941 | |
|
|
2942 | ++periodiccnt; |
1942 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2943 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1943 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2944 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1944 | periodics [periodiccnt - 1] = (WT)w; |
2945 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1945 | upheap (periodics, periodiccnt - 1); |
2946 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2947 | upheap (periodics, ev_active (w)); |
1946 | |
2948 | |
|
|
2949 | EV_FREQUENT_CHECK; |
|
|
2950 | |
1947 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2951 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1948 | } |
2952 | } |
1949 | |
2953 | |
1950 | void noinline |
2954 | void noinline |
1951 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2955 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1952 | { |
2956 | { |
1953 | clear_pending (EV_A_ (W)w); |
2957 | clear_pending (EV_A_ (W)w); |
1954 | if (expect_false (!ev_is_active (w))) |
2958 | if (expect_false (!ev_is_active (w))) |
1955 | return; |
2959 | return; |
1956 | |
2960 | |
1957 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2961 | EV_FREQUENT_CHECK; |
1958 | |
2962 | |
1959 | { |
2963 | { |
1960 | int active = ((W)w)->active; |
2964 | int active = ev_active (w); |
1961 | |
2965 | |
|
|
2966 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2967 | |
|
|
2968 | --periodiccnt; |
|
|
2969 | |
1962 | if (expect_true (--active < --periodiccnt)) |
2970 | if (expect_true (active < periodiccnt + HEAP0)) |
1963 | { |
2971 | { |
1964 | periodics [active] = periodics [periodiccnt]; |
2972 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1965 | adjustheap (periodics, periodiccnt, active); |
2973 | adjustheap (periodics, periodiccnt, active); |
1966 | } |
2974 | } |
1967 | } |
2975 | } |
1968 | |
2976 | |
1969 | ev_stop (EV_A_ (W)w); |
2977 | ev_stop (EV_A_ (W)w); |
|
|
2978 | |
|
|
2979 | EV_FREQUENT_CHECK; |
1970 | } |
2980 | } |
1971 | |
2981 | |
1972 | void noinline |
2982 | void noinline |
1973 | ev_periodic_again (EV_P_ ev_periodic *w) |
2983 | ev_periodic_again (EV_P_ ev_periodic *w) |
1974 | { |
2984 | { |
… | |
… | |
1980 | |
2990 | |
1981 | #ifndef SA_RESTART |
2991 | #ifndef SA_RESTART |
1982 | # define SA_RESTART 0 |
2992 | # define SA_RESTART 0 |
1983 | #endif |
2993 | #endif |
1984 | |
2994 | |
|
|
2995 | #if EV_SIGNAL_ENABLE |
|
|
2996 | |
1985 | void noinline |
2997 | void noinline |
1986 | ev_signal_start (EV_P_ ev_signal *w) |
2998 | ev_signal_start (EV_P_ ev_signal *w) |
1987 | { |
2999 | { |
1988 | #if EV_MULTIPLICITY |
|
|
1989 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1990 | #endif |
|
|
1991 | if (expect_false (ev_is_active (w))) |
3000 | if (expect_false (ev_is_active (w))) |
1992 | return; |
3001 | return; |
1993 | |
3002 | |
1994 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3003 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1995 | |
3004 | |
1996 | evpipe_init (EV_A); |
3005 | #if EV_MULTIPLICITY |
|
|
3006 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3007 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
1997 | |
3008 | |
|
|
3009 | signals [w->signum - 1].loop = EV_A; |
|
|
3010 | #endif |
|
|
3011 | |
|
|
3012 | EV_FREQUENT_CHECK; |
|
|
3013 | |
|
|
3014 | #if EV_USE_SIGNALFD |
|
|
3015 | if (sigfd == -2) |
1998 | { |
3016 | { |
1999 | #ifndef _WIN32 |
3017 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2000 | sigset_t full, prev; |
3018 | if (sigfd < 0 && errno == EINVAL) |
2001 | sigfillset (&full); |
3019 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2002 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2003 | #endif |
|
|
2004 | |
3020 | |
2005 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
3021 | if (sigfd >= 0) |
|
|
3022 | { |
|
|
3023 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2006 | |
3024 | |
2007 | #ifndef _WIN32 |
3025 | sigemptyset (&sigfd_set); |
2008 | sigprocmask (SIG_SETMASK, &prev, 0); |
3026 | |
2009 | #endif |
3027 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3028 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3029 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3030 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3031 | } |
2010 | } |
3032 | } |
|
|
3033 | |
|
|
3034 | if (sigfd >= 0) |
|
|
3035 | { |
|
|
3036 | /* TODO: check .head */ |
|
|
3037 | sigaddset (&sigfd_set, w->signum); |
|
|
3038 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3039 | |
|
|
3040 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3041 | } |
|
|
3042 | #endif |
2011 | |
3043 | |
2012 | ev_start (EV_A_ (W)w, 1); |
3044 | ev_start (EV_A_ (W)w, 1); |
2013 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3045 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2014 | |
3046 | |
2015 | if (!((WL)w)->next) |
3047 | if (!((WL)w)->next) |
|
|
3048 | # if EV_USE_SIGNALFD |
|
|
3049 | if (sigfd < 0) /*TODO*/ |
|
|
3050 | # endif |
2016 | { |
3051 | { |
2017 | #if _WIN32 |
3052 | # ifdef _WIN32 |
|
|
3053 | evpipe_init (EV_A); |
|
|
3054 | |
2018 | signal (w->signum, ev_sighandler); |
3055 | signal (w->signum, ev_sighandler); |
2019 | #else |
3056 | # else |
2020 | struct sigaction sa; |
3057 | struct sigaction sa; |
|
|
3058 | |
|
|
3059 | evpipe_init (EV_A); |
|
|
3060 | |
2021 | sa.sa_handler = ev_sighandler; |
3061 | sa.sa_handler = ev_sighandler; |
2022 | sigfillset (&sa.sa_mask); |
3062 | sigfillset (&sa.sa_mask); |
2023 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3063 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2024 | sigaction (w->signum, &sa, 0); |
3064 | sigaction (w->signum, &sa, 0); |
|
|
3065 | |
|
|
3066 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3067 | { |
|
|
3068 | sigemptyset (&sa.sa_mask); |
|
|
3069 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3070 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3071 | } |
2025 | #endif |
3072 | #endif |
2026 | } |
3073 | } |
|
|
3074 | |
|
|
3075 | EV_FREQUENT_CHECK; |
2027 | } |
3076 | } |
2028 | |
3077 | |
2029 | void noinline |
3078 | void noinline |
2030 | ev_signal_stop (EV_P_ ev_signal *w) |
3079 | ev_signal_stop (EV_P_ ev_signal *w) |
2031 | { |
3080 | { |
2032 | clear_pending (EV_A_ (W)w); |
3081 | clear_pending (EV_A_ (W)w); |
2033 | if (expect_false (!ev_is_active (w))) |
3082 | if (expect_false (!ev_is_active (w))) |
2034 | return; |
3083 | return; |
2035 | |
3084 | |
|
|
3085 | EV_FREQUENT_CHECK; |
|
|
3086 | |
2036 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3087 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2037 | ev_stop (EV_A_ (W)w); |
3088 | ev_stop (EV_A_ (W)w); |
2038 | |
3089 | |
2039 | if (!signals [w->signum - 1].head) |
3090 | if (!signals [w->signum - 1].head) |
|
|
3091 | { |
|
|
3092 | #if EV_MULTIPLICITY |
|
|
3093 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3094 | #endif |
|
|
3095 | #if EV_USE_SIGNALFD |
|
|
3096 | if (sigfd >= 0) |
|
|
3097 | { |
|
|
3098 | sigset_t ss; |
|
|
3099 | |
|
|
3100 | sigemptyset (&ss); |
|
|
3101 | sigaddset (&ss, w->signum); |
|
|
3102 | sigdelset (&sigfd_set, w->signum); |
|
|
3103 | |
|
|
3104 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3105 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3106 | } |
|
|
3107 | else |
|
|
3108 | #endif |
2040 | signal (w->signum, SIG_DFL); |
3109 | signal (w->signum, SIG_DFL); |
|
|
3110 | } |
|
|
3111 | |
|
|
3112 | EV_FREQUENT_CHECK; |
2041 | } |
3113 | } |
|
|
3114 | |
|
|
3115 | #endif |
|
|
3116 | |
|
|
3117 | #if EV_CHILD_ENABLE |
2042 | |
3118 | |
2043 | void |
3119 | void |
2044 | ev_child_start (EV_P_ ev_child *w) |
3120 | ev_child_start (EV_P_ ev_child *w) |
2045 | { |
3121 | { |
2046 | #if EV_MULTIPLICITY |
3122 | #if EV_MULTIPLICITY |
2047 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3123 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2048 | #endif |
3124 | #endif |
2049 | if (expect_false (ev_is_active (w))) |
3125 | if (expect_false (ev_is_active (w))) |
2050 | return; |
3126 | return; |
2051 | |
3127 | |
|
|
3128 | EV_FREQUENT_CHECK; |
|
|
3129 | |
2052 | ev_start (EV_A_ (W)w, 1); |
3130 | ev_start (EV_A_ (W)w, 1); |
2053 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3131 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3132 | |
|
|
3133 | EV_FREQUENT_CHECK; |
2054 | } |
3134 | } |
2055 | |
3135 | |
2056 | void |
3136 | void |
2057 | ev_child_stop (EV_P_ ev_child *w) |
3137 | ev_child_stop (EV_P_ ev_child *w) |
2058 | { |
3138 | { |
2059 | clear_pending (EV_A_ (W)w); |
3139 | clear_pending (EV_A_ (W)w); |
2060 | if (expect_false (!ev_is_active (w))) |
3140 | if (expect_false (!ev_is_active (w))) |
2061 | return; |
3141 | return; |
2062 | |
3142 | |
|
|
3143 | EV_FREQUENT_CHECK; |
|
|
3144 | |
2063 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3145 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2064 | ev_stop (EV_A_ (W)w); |
3146 | ev_stop (EV_A_ (W)w); |
|
|
3147 | |
|
|
3148 | EV_FREQUENT_CHECK; |
2065 | } |
3149 | } |
|
|
3150 | |
|
|
3151 | #endif |
2066 | |
3152 | |
2067 | #if EV_STAT_ENABLE |
3153 | #if EV_STAT_ENABLE |
2068 | |
3154 | |
2069 | # ifdef _WIN32 |
3155 | # ifdef _WIN32 |
2070 | # undef lstat |
3156 | # undef lstat |
2071 | # define lstat(a,b) _stati64 (a,b) |
3157 | # define lstat(a,b) _stati64 (a,b) |
2072 | # endif |
3158 | # endif |
2073 | |
3159 | |
2074 | #define DEF_STAT_INTERVAL 5.0074891 |
3160 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3161 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2075 | #define MIN_STAT_INTERVAL 0.1074891 |
3162 | #define MIN_STAT_INTERVAL 0.1074891 |
2076 | |
3163 | |
2077 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3164 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2078 | |
3165 | |
2079 | #if EV_USE_INOTIFY |
3166 | #if EV_USE_INOTIFY |
2080 | # define EV_INOTIFY_BUFSIZE 8192 |
3167 | |
|
|
3168 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3169 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2081 | |
3170 | |
2082 | static void noinline |
3171 | static void noinline |
2083 | infy_add (EV_P_ ev_stat *w) |
3172 | infy_add (EV_P_ ev_stat *w) |
2084 | { |
3173 | { |
2085 | 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); |
3174 | 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); |
2086 | |
3175 | |
2087 | if (w->wd < 0) |
3176 | if (w->wd >= 0) |
|
|
3177 | { |
|
|
3178 | struct statfs sfs; |
|
|
3179 | |
|
|
3180 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3181 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3182 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3183 | |
|
|
3184 | if (!fs_2625) |
|
|
3185 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3186 | else if (!statfs (w->path, &sfs) |
|
|
3187 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3188 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3189 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3190 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3191 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3192 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3193 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3194 | else |
|
|
3195 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2088 | { |
3196 | } |
2089 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3197 | else |
|
|
3198 | { |
|
|
3199 | /* can't use inotify, continue to stat */ |
|
|
3200 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2090 | |
3201 | |
2091 | /* monitor some parent directory for speedup hints */ |
3202 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3203 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3204 | /* but an efficiency issue only */ |
2092 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3205 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2093 | { |
3206 | { |
2094 | char path [4096]; |
3207 | char path [4096]; |
2095 | strcpy (path, w->path); |
3208 | strcpy (path, w->path); |
2096 | |
3209 | |
… | |
… | |
2099 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3212 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2100 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3213 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2101 | |
3214 | |
2102 | char *pend = strrchr (path, '/'); |
3215 | char *pend = strrchr (path, '/'); |
2103 | |
3216 | |
2104 | if (!pend) |
3217 | if (!pend || pend == path) |
2105 | break; /* whoops, no '/', complain to your admin */ |
3218 | break; |
2106 | |
3219 | |
2107 | *pend = 0; |
3220 | *pend = 0; |
2108 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3221 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2109 | } |
3222 | } |
2110 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3223 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2111 | } |
3224 | } |
2112 | } |
3225 | } |
2113 | else |
|
|
2114 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2115 | |
3226 | |
2116 | if (w->wd >= 0) |
3227 | if (w->wd >= 0) |
2117 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3228 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3229 | |
|
|
3230 | /* now re-arm timer, if required */ |
|
|
3231 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3232 | ev_timer_again (EV_A_ &w->timer); |
|
|
3233 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2118 | } |
3234 | } |
2119 | |
3235 | |
2120 | static void noinline |
3236 | static void noinline |
2121 | infy_del (EV_P_ ev_stat *w) |
3237 | infy_del (EV_P_ ev_stat *w) |
2122 | { |
3238 | { |
… | |
… | |
2125 | |
3241 | |
2126 | if (wd < 0) |
3242 | if (wd < 0) |
2127 | return; |
3243 | return; |
2128 | |
3244 | |
2129 | w->wd = -2; |
3245 | w->wd = -2; |
2130 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3246 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2131 | wlist_del (&fs_hash [slot].head, (WL)w); |
3247 | wlist_del (&fs_hash [slot].head, (WL)w); |
2132 | |
3248 | |
2133 | /* remove this watcher, if others are watching it, they will rearm */ |
3249 | /* remove this watcher, if others are watching it, they will rearm */ |
2134 | inotify_rm_watch (fs_fd, wd); |
3250 | inotify_rm_watch (fs_fd, wd); |
2135 | } |
3251 | } |
2136 | |
3252 | |
2137 | static void noinline |
3253 | static void noinline |
2138 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3254 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2139 | { |
3255 | { |
2140 | if (slot < 0) |
3256 | if (slot < 0) |
2141 | /* overflow, need to check for all hahs slots */ |
3257 | /* overflow, need to check for all hash slots */ |
2142 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3258 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2143 | infy_wd (EV_A_ slot, wd, ev); |
3259 | infy_wd (EV_A_ slot, wd, ev); |
2144 | else |
3260 | else |
2145 | { |
3261 | { |
2146 | WL w_; |
3262 | WL w_; |
2147 | |
3263 | |
2148 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3264 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2149 | { |
3265 | { |
2150 | ev_stat *w = (ev_stat *)w_; |
3266 | ev_stat *w = (ev_stat *)w_; |
2151 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3267 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2152 | |
3268 | |
2153 | if (w->wd == wd || wd == -1) |
3269 | if (w->wd == wd || wd == -1) |
2154 | { |
3270 | { |
2155 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3271 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2156 | { |
3272 | { |
|
|
3273 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2157 | w->wd = -1; |
3274 | w->wd = -1; |
2158 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3275 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2159 | } |
3276 | } |
2160 | |
3277 | |
2161 | stat_timer_cb (EV_A_ &w->timer, 0); |
3278 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2166 | |
3283 | |
2167 | static void |
3284 | static void |
2168 | infy_cb (EV_P_ ev_io *w, int revents) |
3285 | infy_cb (EV_P_ ev_io *w, int revents) |
2169 | { |
3286 | { |
2170 | char buf [EV_INOTIFY_BUFSIZE]; |
3287 | char buf [EV_INOTIFY_BUFSIZE]; |
2171 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2172 | int ofs; |
3288 | int ofs; |
2173 | int len = read (fs_fd, buf, sizeof (buf)); |
3289 | int len = read (fs_fd, buf, sizeof (buf)); |
2174 | |
3290 | |
2175 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3291 | for (ofs = 0; ofs < len; ) |
|
|
3292 | { |
|
|
3293 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2176 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3294 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3295 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3296 | } |
2177 | } |
3297 | } |
2178 | |
3298 | |
2179 | void inline_size |
3299 | inline_size void ecb_cold |
|
|
3300 | ev_check_2625 (EV_P) |
|
|
3301 | { |
|
|
3302 | /* kernels < 2.6.25 are borked |
|
|
3303 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3304 | */ |
|
|
3305 | if (ev_linux_version () < 0x020619) |
|
|
3306 | return; |
|
|
3307 | |
|
|
3308 | fs_2625 = 1; |
|
|
3309 | } |
|
|
3310 | |
|
|
3311 | inline_size int |
|
|
3312 | infy_newfd (void) |
|
|
3313 | { |
|
|
3314 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3315 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3316 | if (fd >= 0) |
|
|
3317 | return fd; |
|
|
3318 | #endif |
|
|
3319 | return inotify_init (); |
|
|
3320 | } |
|
|
3321 | |
|
|
3322 | inline_size void |
2180 | infy_init (EV_P) |
3323 | infy_init (EV_P) |
2181 | { |
3324 | { |
2182 | if (fs_fd != -2) |
3325 | if (fs_fd != -2) |
2183 | return; |
3326 | return; |
2184 | |
3327 | |
|
|
3328 | fs_fd = -1; |
|
|
3329 | |
|
|
3330 | ev_check_2625 (EV_A); |
|
|
3331 | |
2185 | fs_fd = inotify_init (); |
3332 | fs_fd = infy_newfd (); |
2186 | |
3333 | |
2187 | if (fs_fd >= 0) |
3334 | if (fs_fd >= 0) |
2188 | { |
3335 | { |
|
|
3336 | fd_intern (fs_fd); |
2189 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3337 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2190 | ev_set_priority (&fs_w, EV_MAXPRI); |
3338 | ev_set_priority (&fs_w, EV_MAXPRI); |
2191 | ev_io_start (EV_A_ &fs_w); |
3339 | ev_io_start (EV_A_ &fs_w); |
|
|
3340 | ev_unref (EV_A); |
2192 | } |
3341 | } |
2193 | } |
3342 | } |
2194 | |
3343 | |
2195 | void inline_size |
3344 | inline_size void |
2196 | infy_fork (EV_P) |
3345 | infy_fork (EV_P) |
2197 | { |
3346 | { |
2198 | int slot; |
3347 | int slot; |
2199 | |
3348 | |
2200 | if (fs_fd < 0) |
3349 | if (fs_fd < 0) |
2201 | return; |
3350 | return; |
2202 | |
3351 | |
|
|
3352 | ev_ref (EV_A); |
|
|
3353 | ev_io_stop (EV_A_ &fs_w); |
2203 | close (fs_fd); |
3354 | close (fs_fd); |
2204 | fs_fd = inotify_init (); |
3355 | fs_fd = infy_newfd (); |
2205 | |
3356 | |
|
|
3357 | if (fs_fd >= 0) |
|
|
3358 | { |
|
|
3359 | fd_intern (fs_fd); |
|
|
3360 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3361 | ev_io_start (EV_A_ &fs_w); |
|
|
3362 | ev_unref (EV_A); |
|
|
3363 | } |
|
|
3364 | |
2206 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3365 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2207 | { |
3366 | { |
2208 | WL w_ = fs_hash [slot].head; |
3367 | WL w_ = fs_hash [slot].head; |
2209 | fs_hash [slot].head = 0; |
3368 | fs_hash [slot].head = 0; |
2210 | |
3369 | |
2211 | while (w_) |
3370 | while (w_) |
… | |
… | |
2216 | w->wd = -1; |
3375 | w->wd = -1; |
2217 | |
3376 | |
2218 | if (fs_fd >= 0) |
3377 | if (fs_fd >= 0) |
2219 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3378 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2220 | else |
3379 | else |
|
|
3380 | { |
|
|
3381 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3382 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2221 | ev_timer_start (EV_A_ &w->timer); |
3383 | ev_timer_again (EV_A_ &w->timer); |
|
|
3384 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3385 | } |
2222 | } |
3386 | } |
2223 | |
|
|
2224 | } |
3387 | } |
2225 | } |
3388 | } |
2226 | |
3389 | |
|
|
3390 | #endif |
|
|
3391 | |
|
|
3392 | #ifdef _WIN32 |
|
|
3393 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3394 | #else |
|
|
3395 | # define EV_LSTAT(p,b) lstat (p, b) |
2227 | #endif |
3396 | #endif |
2228 | |
3397 | |
2229 | void |
3398 | void |
2230 | ev_stat_stat (EV_P_ ev_stat *w) |
3399 | ev_stat_stat (EV_P_ ev_stat *w) |
2231 | { |
3400 | { |
… | |
… | |
2238 | static void noinline |
3407 | static void noinline |
2239 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3408 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2240 | { |
3409 | { |
2241 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3410 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2242 | |
3411 | |
2243 | /* we copy this here each the time so that */ |
3412 | ev_statdata prev = w->attr; |
2244 | /* prev has the old value when the callback gets invoked */ |
|
|
2245 | w->prev = w->attr; |
|
|
2246 | ev_stat_stat (EV_A_ w); |
3413 | ev_stat_stat (EV_A_ w); |
2247 | |
3414 | |
2248 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3415 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2249 | if ( |
3416 | if ( |
2250 | w->prev.st_dev != w->attr.st_dev |
3417 | prev.st_dev != w->attr.st_dev |
2251 | || w->prev.st_ino != w->attr.st_ino |
3418 | || prev.st_ino != w->attr.st_ino |
2252 | || w->prev.st_mode != w->attr.st_mode |
3419 | || prev.st_mode != w->attr.st_mode |
2253 | || w->prev.st_nlink != w->attr.st_nlink |
3420 | || prev.st_nlink != w->attr.st_nlink |
2254 | || w->prev.st_uid != w->attr.st_uid |
3421 | || prev.st_uid != w->attr.st_uid |
2255 | || w->prev.st_gid != w->attr.st_gid |
3422 | || prev.st_gid != w->attr.st_gid |
2256 | || w->prev.st_rdev != w->attr.st_rdev |
3423 | || prev.st_rdev != w->attr.st_rdev |
2257 | || w->prev.st_size != w->attr.st_size |
3424 | || prev.st_size != w->attr.st_size |
2258 | || w->prev.st_atime != w->attr.st_atime |
3425 | || prev.st_atime != w->attr.st_atime |
2259 | || w->prev.st_mtime != w->attr.st_mtime |
3426 | || prev.st_mtime != w->attr.st_mtime |
2260 | || w->prev.st_ctime != w->attr.st_ctime |
3427 | || prev.st_ctime != w->attr.st_ctime |
2261 | ) { |
3428 | ) { |
|
|
3429 | /* we only update w->prev on actual differences */ |
|
|
3430 | /* in case we test more often than invoke the callback, */ |
|
|
3431 | /* to ensure that prev is always different to attr */ |
|
|
3432 | w->prev = prev; |
|
|
3433 | |
2262 | #if EV_USE_INOTIFY |
3434 | #if EV_USE_INOTIFY |
|
|
3435 | if (fs_fd >= 0) |
|
|
3436 | { |
2263 | infy_del (EV_A_ w); |
3437 | infy_del (EV_A_ w); |
2264 | infy_add (EV_A_ w); |
3438 | infy_add (EV_A_ w); |
2265 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3439 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3440 | } |
2266 | #endif |
3441 | #endif |
2267 | |
3442 | |
2268 | ev_feed_event (EV_A_ w, EV_STAT); |
3443 | ev_feed_event (EV_A_ w, EV_STAT); |
2269 | } |
3444 | } |
2270 | } |
3445 | } |
… | |
… | |
2273 | ev_stat_start (EV_P_ ev_stat *w) |
3448 | ev_stat_start (EV_P_ ev_stat *w) |
2274 | { |
3449 | { |
2275 | if (expect_false (ev_is_active (w))) |
3450 | if (expect_false (ev_is_active (w))) |
2276 | return; |
3451 | return; |
2277 | |
3452 | |
2278 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2279 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2280 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2281 | |
|
|
2282 | ev_stat_stat (EV_A_ w); |
3453 | ev_stat_stat (EV_A_ w); |
2283 | |
3454 | |
|
|
3455 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2284 | if (w->interval < MIN_STAT_INTERVAL) |
3456 | w->interval = MIN_STAT_INTERVAL; |
2285 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2286 | |
3457 | |
2287 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3458 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2288 | ev_set_priority (&w->timer, ev_priority (w)); |
3459 | ev_set_priority (&w->timer, ev_priority (w)); |
2289 | |
3460 | |
2290 | #if EV_USE_INOTIFY |
3461 | #if EV_USE_INOTIFY |
2291 | infy_init (EV_A); |
3462 | infy_init (EV_A); |
2292 | |
3463 | |
2293 | if (fs_fd >= 0) |
3464 | if (fs_fd >= 0) |
2294 | infy_add (EV_A_ w); |
3465 | infy_add (EV_A_ w); |
2295 | else |
3466 | else |
2296 | #endif |
3467 | #endif |
|
|
3468 | { |
2297 | ev_timer_start (EV_A_ &w->timer); |
3469 | ev_timer_again (EV_A_ &w->timer); |
|
|
3470 | ev_unref (EV_A); |
|
|
3471 | } |
2298 | |
3472 | |
2299 | ev_start (EV_A_ (W)w, 1); |
3473 | ev_start (EV_A_ (W)w, 1); |
|
|
3474 | |
|
|
3475 | EV_FREQUENT_CHECK; |
2300 | } |
3476 | } |
2301 | |
3477 | |
2302 | void |
3478 | void |
2303 | ev_stat_stop (EV_P_ ev_stat *w) |
3479 | ev_stat_stop (EV_P_ ev_stat *w) |
2304 | { |
3480 | { |
2305 | clear_pending (EV_A_ (W)w); |
3481 | clear_pending (EV_A_ (W)w); |
2306 | if (expect_false (!ev_is_active (w))) |
3482 | if (expect_false (!ev_is_active (w))) |
2307 | return; |
3483 | return; |
2308 | |
3484 | |
|
|
3485 | EV_FREQUENT_CHECK; |
|
|
3486 | |
2309 | #if EV_USE_INOTIFY |
3487 | #if EV_USE_INOTIFY |
2310 | infy_del (EV_A_ w); |
3488 | infy_del (EV_A_ w); |
2311 | #endif |
3489 | #endif |
|
|
3490 | |
|
|
3491 | if (ev_is_active (&w->timer)) |
|
|
3492 | { |
|
|
3493 | ev_ref (EV_A); |
2312 | ev_timer_stop (EV_A_ &w->timer); |
3494 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3495 | } |
2313 | |
3496 | |
2314 | ev_stop (EV_A_ (W)w); |
3497 | ev_stop (EV_A_ (W)w); |
|
|
3498 | |
|
|
3499 | EV_FREQUENT_CHECK; |
2315 | } |
3500 | } |
2316 | #endif |
3501 | #endif |
2317 | |
3502 | |
2318 | #if EV_IDLE_ENABLE |
3503 | #if EV_IDLE_ENABLE |
2319 | void |
3504 | void |
… | |
… | |
2322 | if (expect_false (ev_is_active (w))) |
3507 | if (expect_false (ev_is_active (w))) |
2323 | return; |
3508 | return; |
2324 | |
3509 | |
2325 | pri_adjust (EV_A_ (W)w); |
3510 | pri_adjust (EV_A_ (W)w); |
2326 | |
3511 | |
|
|
3512 | EV_FREQUENT_CHECK; |
|
|
3513 | |
2327 | { |
3514 | { |
2328 | int active = ++idlecnt [ABSPRI (w)]; |
3515 | int active = ++idlecnt [ABSPRI (w)]; |
2329 | |
3516 | |
2330 | ++idleall; |
3517 | ++idleall; |
2331 | ev_start (EV_A_ (W)w, active); |
3518 | ev_start (EV_A_ (W)w, active); |
2332 | |
3519 | |
2333 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3520 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2334 | idles [ABSPRI (w)][active - 1] = w; |
3521 | idles [ABSPRI (w)][active - 1] = w; |
2335 | } |
3522 | } |
|
|
3523 | |
|
|
3524 | EV_FREQUENT_CHECK; |
2336 | } |
3525 | } |
2337 | |
3526 | |
2338 | void |
3527 | void |
2339 | ev_idle_stop (EV_P_ ev_idle *w) |
3528 | ev_idle_stop (EV_P_ ev_idle *w) |
2340 | { |
3529 | { |
2341 | clear_pending (EV_A_ (W)w); |
3530 | clear_pending (EV_A_ (W)w); |
2342 | if (expect_false (!ev_is_active (w))) |
3531 | if (expect_false (!ev_is_active (w))) |
2343 | return; |
3532 | return; |
2344 | |
3533 | |
|
|
3534 | EV_FREQUENT_CHECK; |
|
|
3535 | |
2345 | { |
3536 | { |
2346 | int active = ((W)w)->active; |
3537 | int active = ev_active (w); |
2347 | |
3538 | |
2348 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3539 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2349 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3540 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2350 | |
3541 | |
2351 | ev_stop (EV_A_ (W)w); |
3542 | ev_stop (EV_A_ (W)w); |
2352 | --idleall; |
3543 | --idleall; |
2353 | } |
3544 | } |
2354 | } |
|
|
2355 | #endif |
|
|
2356 | |
3545 | |
|
|
3546 | EV_FREQUENT_CHECK; |
|
|
3547 | } |
|
|
3548 | #endif |
|
|
3549 | |
|
|
3550 | #if EV_PREPARE_ENABLE |
2357 | void |
3551 | void |
2358 | ev_prepare_start (EV_P_ ev_prepare *w) |
3552 | ev_prepare_start (EV_P_ ev_prepare *w) |
2359 | { |
3553 | { |
2360 | if (expect_false (ev_is_active (w))) |
3554 | if (expect_false (ev_is_active (w))) |
2361 | return; |
3555 | return; |
|
|
3556 | |
|
|
3557 | EV_FREQUENT_CHECK; |
2362 | |
3558 | |
2363 | ev_start (EV_A_ (W)w, ++preparecnt); |
3559 | ev_start (EV_A_ (W)w, ++preparecnt); |
2364 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3560 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2365 | prepares [preparecnt - 1] = w; |
3561 | prepares [preparecnt - 1] = w; |
|
|
3562 | |
|
|
3563 | EV_FREQUENT_CHECK; |
2366 | } |
3564 | } |
2367 | |
3565 | |
2368 | void |
3566 | void |
2369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3567 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2370 | { |
3568 | { |
2371 | clear_pending (EV_A_ (W)w); |
3569 | clear_pending (EV_A_ (W)w); |
2372 | if (expect_false (!ev_is_active (w))) |
3570 | if (expect_false (!ev_is_active (w))) |
2373 | return; |
3571 | return; |
2374 | |
3572 | |
|
|
3573 | EV_FREQUENT_CHECK; |
|
|
3574 | |
2375 | { |
3575 | { |
2376 | int active = ((W)w)->active; |
3576 | int active = ev_active (w); |
|
|
3577 | |
2377 | prepares [active - 1] = prepares [--preparecnt]; |
3578 | prepares [active - 1] = prepares [--preparecnt]; |
2378 | ((W)prepares [active - 1])->active = active; |
3579 | ev_active (prepares [active - 1]) = active; |
2379 | } |
3580 | } |
2380 | |
3581 | |
2381 | ev_stop (EV_A_ (W)w); |
3582 | ev_stop (EV_A_ (W)w); |
2382 | } |
|
|
2383 | |
3583 | |
|
|
3584 | EV_FREQUENT_CHECK; |
|
|
3585 | } |
|
|
3586 | #endif |
|
|
3587 | |
|
|
3588 | #if EV_CHECK_ENABLE |
2384 | void |
3589 | void |
2385 | ev_check_start (EV_P_ ev_check *w) |
3590 | ev_check_start (EV_P_ ev_check *w) |
2386 | { |
3591 | { |
2387 | if (expect_false (ev_is_active (w))) |
3592 | if (expect_false (ev_is_active (w))) |
2388 | return; |
3593 | return; |
|
|
3594 | |
|
|
3595 | EV_FREQUENT_CHECK; |
2389 | |
3596 | |
2390 | ev_start (EV_A_ (W)w, ++checkcnt); |
3597 | ev_start (EV_A_ (W)w, ++checkcnt); |
2391 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3598 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2392 | checks [checkcnt - 1] = w; |
3599 | checks [checkcnt - 1] = w; |
|
|
3600 | |
|
|
3601 | EV_FREQUENT_CHECK; |
2393 | } |
3602 | } |
2394 | |
3603 | |
2395 | void |
3604 | void |
2396 | ev_check_stop (EV_P_ ev_check *w) |
3605 | ev_check_stop (EV_P_ ev_check *w) |
2397 | { |
3606 | { |
2398 | clear_pending (EV_A_ (W)w); |
3607 | clear_pending (EV_A_ (W)w); |
2399 | if (expect_false (!ev_is_active (w))) |
3608 | if (expect_false (!ev_is_active (w))) |
2400 | return; |
3609 | return; |
2401 | |
3610 | |
|
|
3611 | EV_FREQUENT_CHECK; |
|
|
3612 | |
2402 | { |
3613 | { |
2403 | int active = ((W)w)->active; |
3614 | int active = ev_active (w); |
|
|
3615 | |
2404 | checks [active - 1] = checks [--checkcnt]; |
3616 | checks [active - 1] = checks [--checkcnt]; |
2405 | ((W)checks [active - 1])->active = active; |
3617 | ev_active (checks [active - 1]) = active; |
2406 | } |
3618 | } |
2407 | |
3619 | |
2408 | ev_stop (EV_A_ (W)w); |
3620 | ev_stop (EV_A_ (W)w); |
|
|
3621 | |
|
|
3622 | EV_FREQUENT_CHECK; |
2409 | } |
3623 | } |
|
|
3624 | #endif |
2410 | |
3625 | |
2411 | #if EV_EMBED_ENABLE |
3626 | #if EV_EMBED_ENABLE |
2412 | void noinline |
3627 | void noinline |
2413 | ev_embed_sweep (EV_P_ ev_embed *w) |
3628 | ev_embed_sweep (EV_P_ ev_embed *w) |
2414 | { |
3629 | { |
2415 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3630 | ev_run (w->other, EVRUN_NOWAIT); |
2416 | } |
3631 | } |
2417 | |
3632 | |
2418 | static void |
3633 | static void |
2419 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3634 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2420 | { |
3635 | { |
2421 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3636 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2422 | |
3637 | |
2423 | if (ev_cb (w)) |
3638 | if (ev_cb (w)) |
2424 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3639 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2425 | else |
3640 | else |
2426 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3641 | ev_run (w->other, EVRUN_NOWAIT); |
2427 | } |
3642 | } |
2428 | |
3643 | |
2429 | static void |
3644 | static void |
2430 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3645 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2431 | { |
3646 | { |
2432 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3647 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2433 | |
3648 | |
2434 | { |
3649 | { |
2435 | struct ev_loop *loop = w->other; |
3650 | EV_P = w->other; |
2436 | |
3651 | |
2437 | while (fdchangecnt) |
3652 | while (fdchangecnt) |
2438 | { |
3653 | { |
2439 | fd_reify (EV_A); |
3654 | fd_reify (EV_A); |
2440 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3655 | ev_run (EV_A_ EVRUN_NOWAIT); |
2441 | } |
3656 | } |
2442 | } |
3657 | } |
|
|
3658 | } |
|
|
3659 | |
|
|
3660 | static void |
|
|
3661 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3662 | { |
|
|
3663 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3664 | |
|
|
3665 | ev_embed_stop (EV_A_ w); |
|
|
3666 | |
|
|
3667 | { |
|
|
3668 | EV_P = w->other; |
|
|
3669 | |
|
|
3670 | ev_loop_fork (EV_A); |
|
|
3671 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3672 | } |
|
|
3673 | |
|
|
3674 | ev_embed_start (EV_A_ w); |
2443 | } |
3675 | } |
2444 | |
3676 | |
2445 | #if 0 |
3677 | #if 0 |
2446 | static void |
3678 | static void |
2447 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3679 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2455 | { |
3687 | { |
2456 | if (expect_false (ev_is_active (w))) |
3688 | if (expect_false (ev_is_active (w))) |
2457 | return; |
3689 | return; |
2458 | |
3690 | |
2459 | { |
3691 | { |
2460 | struct ev_loop *loop = w->other; |
3692 | EV_P = w->other; |
2461 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3693 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2462 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3694 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2463 | } |
3695 | } |
|
|
3696 | |
|
|
3697 | EV_FREQUENT_CHECK; |
2464 | |
3698 | |
2465 | ev_set_priority (&w->io, ev_priority (w)); |
3699 | ev_set_priority (&w->io, ev_priority (w)); |
2466 | ev_io_start (EV_A_ &w->io); |
3700 | ev_io_start (EV_A_ &w->io); |
2467 | |
3701 | |
2468 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3702 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2469 | ev_set_priority (&w->prepare, EV_MINPRI); |
3703 | ev_set_priority (&w->prepare, EV_MINPRI); |
2470 | ev_prepare_start (EV_A_ &w->prepare); |
3704 | ev_prepare_start (EV_A_ &w->prepare); |
2471 | |
3705 | |
|
|
3706 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3707 | ev_fork_start (EV_A_ &w->fork); |
|
|
3708 | |
2472 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3709 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2473 | |
3710 | |
2474 | ev_start (EV_A_ (W)w, 1); |
3711 | ev_start (EV_A_ (W)w, 1); |
|
|
3712 | |
|
|
3713 | EV_FREQUENT_CHECK; |
2475 | } |
3714 | } |
2476 | |
3715 | |
2477 | void |
3716 | void |
2478 | ev_embed_stop (EV_P_ ev_embed *w) |
3717 | ev_embed_stop (EV_P_ ev_embed *w) |
2479 | { |
3718 | { |
2480 | clear_pending (EV_A_ (W)w); |
3719 | clear_pending (EV_A_ (W)w); |
2481 | if (expect_false (!ev_is_active (w))) |
3720 | if (expect_false (!ev_is_active (w))) |
2482 | return; |
3721 | return; |
2483 | |
3722 | |
|
|
3723 | EV_FREQUENT_CHECK; |
|
|
3724 | |
2484 | ev_io_stop (EV_A_ &w->io); |
3725 | ev_io_stop (EV_A_ &w->io); |
2485 | ev_prepare_stop (EV_A_ &w->prepare); |
3726 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3727 | ev_fork_stop (EV_A_ &w->fork); |
2486 | |
3728 | |
2487 | ev_stop (EV_A_ (W)w); |
3729 | ev_stop (EV_A_ (W)w); |
|
|
3730 | |
|
|
3731 | EV_FREQUENT_CHECK; |
2488 | } |
3732 | } |
2489 | #endif |
3733 | #endif |
2490 | |
3734 | |
2491 | #if EV_FORK_ENABLE |
3735 | #if EV_FORK_ENABLE |
2492 | void |
3736 | void |
2493 | ev_fork_start (EV_P_ ev_fork *w) |
3737 | ev_fork_start (EV_P_ ev_fork *w) |
2494 | { |
3738 | { |
2495 | if (expect_false (ev_is_active (w))) |
3739 | if (expect_false (ev_is_active (w))) |
2496 | return; |
3740 | return; |
2497 | |
3741 | |
|
|
3742 | EV_FREQUENT_CHECK; |
|
|
3743 | |
2498 | ev_start (EV_A_ (W)w, ++forkcnt); |
3744 | ev_start (EV_A_ (W)w, ++forkcnt); |
2499 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3745 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2500 | forks [forkcnt - 1] = w; |
3746 | forks [forkcnt - 1] = w; |
|
|
3747 | |
|
|
3748 | EV_FREQUENT_CHECK; |
2501 | } |
3749 | } |
2502 | |
3750 | |
2503 | void |
3751 | void |
2504 | ev_fork_stop (EV_P_ ev_fork *w) |
3752 | ev_fork_stop (EV_P_ ev_fork *w) |
2505 | { |
3753 | { |
2506 | clear_pending (EV_A_ (W)w); |
3754 | clear_pending (EV_A_ (W)w); |
2507 | if (expect_false (!ev_is_active (w))) |
3755 | if (expect_false (!ev_is_active (w))) |
2508 | return; |
3756 | return; |
2509 | |
3757 | |
|
|
3758 | EV_FREQUENT_CHECK; |
|
|
3759 | |
2510 | { |
3760 | { |
2511 | int active = ((W)w)->active; |
3761 | int active = ev_active (w); |
|
|
3762 | |
2512 | forks [active - 1] = forks [--forkcnt]; |
3763 | forks [active - 1] = forks [--forkcnt]; |
2513 | ((W)forks [active - 1])->active = active; |
3764 | ev_active (forks [active - 1]) = active; |
2514 | } |
3765 | } |
2515 | |
3766 | |
2516 | ev_stop (EV_A_ (W)w); |
3767 | ev_stop (EV_A_ (W)w); |
|
|
3768 | |
|
|
3769 | EV_FREQUENT_CHECK; |
|
|
3770 | } |
|
|
3771 | #endif |
|
|
3772 | |
|
|
3773 | #if EV_CLEANUP_ENABLE |
|
|
3774 | void |
|
|
3775 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
3776 | { |
|
|
3777 | if (expect_false (ev_is_active (w))) |
|
|
3778 | return; |
|
|
3779 | |
|
|
3780 | EV_FREQUENT_CHECK; |
|
|
3781 | |
|
|
3782 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3783 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3784 | cleanups [cleanupcnt - 1] = w; |
|
|
3785 | |
|
|
3786 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3787 | ev_unref (EV_A); |
|
|
3788 | EV_FREQUENT_CHECK; |
|
|
3789 | } |
|
|
3790 | |
|
|
3791 | void |
|
|
3792 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3793 | { |
|
|
3794 | clear_pending (EV_A_ (W)w); |
|
|
3795 | if (expect_false (!ev_is_active (w))) |
|
|
3796 | return; |
|
|
3797 | |
|
|
3798 | EV_FREQUENT_CHECK; |
|
|
3799 | ev_ref (EV_A); |
|
|
3800 | |
|
|
3801 | { |
|
|
3802 | int active = ev_active (w); |
|
|
3803 | |
|
|
3804 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3805 | ev_active (cleanups [active - 1]) = active; |
|
|
3806 | } |
|
|
3807 | |
|
|
3808 | ev_stop (EV_A_ (W)w); |
|
|
3809 | |
|
|
3810 | EV_FREQUENT_CHECK; |
2517 | } |
3811 | } |
2518 | #endif |
3812 | #endif |
2519 | |
3813 | |
2520 | #if EV_ASYNC_ENABLE |
3814 | #if EV_ASYNC_ENABLE |
2521 | void |
3815 | void |
2522 | ev_async_start (EV_P_ ev_async *w) |
3816 | ev_async_start (EV_P_ ev_async *w) |
2523 | { |
3817 | { |
2524 | if (expect_false (ev_is_active (w))) |
3818 | if (expect_false (ev_is_active (w))) |
2525 | return; |
3819 | return; |
2526 | |
3820 | |
|
|
3821 | w->sent = 0; |
|
|
3822 | |
2527 | evpipe_init (EV_A); |
3823 | evpipe_init (EV_A); |
|
|
3824 | |
|
|
3825 | EV_FREQUENT_CHECK; |
2528 | |
3826 | |
2529 | ev_start (EV_A_ (W)w, ++asynccnt); |
3827 | ev_start (EV_A_ (W)w, ++asynccnt); |
2530 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3828 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2531 | asyncs [asynccnt - 1] = w; |
3829 | asyncs [asynccnt - 1] = w; |
|
|
3830 | |
|
|
3831 | EV_FREQUENT_CHECK; |
2532 | } |
3832 | } |
2533 | |
3833 | |
2534 | void |
3834 | void |
2535 | ev_async_stop (EV_P_ ev_async *w) |
3835 | ev_async_stop (EV_P_ ev_async *w) |
2536 | { |
3836 | { |
2537 | clear_pending (EV_A_ (W)w); |
3837 | clear_pending (EV_A_ (W)w); |
2538 | if (expect_false (!ev_is_active (w))) |
3838 | if (expect_false (!ev_is_active (w))) |
2539 | return; |
3839 | return; |
2540 | |
3840 | |
|
|
3841 | EV_FREQUENT_CHECK; |
|
|
3842 | |
2541 | { |
3843 | { |
2542 | int active = ((W)w)->active; |
3844 | int active = ev_active (w); |
|
|
3845 | |
2543 | asyncs [active - 1] = asyncs [--asynccnt]; |
3846 | asyncs [active - 1] = asyncs [--asynccnt]; |
2544 | ((W)asyncs [active - 1])->active = active; |
3847 | ev_active (asyncs [active - 1]) = active; |
2545 | } |
3848 | } |
2546 | |
3849 | |
2547 | ev_stop (EV_A_ (W)w); |
3850 | ev_stop (EV_A_ (W)w); |
|
|
3851 | |
|
|
3852 | EV_FREQUENT_CHECK; |
2548 | } |
3853 | } |
2549 | |
3854 | |
2550 | void |
3855 | void |
2551 | ev_async_send (EV_P_ ev_async *w) |
3856 | ev_async_send (EV_P_ ev_async *w) |
2552 | { |
3857 | { |
2553 | w->sent = 1; |
3858 | w->sent = 1; |
2554 | evpipe_write (EV_A_ &gotasync); |
3859 | evpipe_write (EV_A_ &async_pending); |
2555 | } |
3860 | } |
2556 | #endif |
3861 | #endif |
2557 | |
3862 | |
2558 | /*****************************************************************************/ |
3863 | /*****************************************************************************/ |
2559 | |
3864 | |
… | |
… | |
2569 | once_cb (EV_P_ struct ev_once *once, int revents) |
3874 | once_cb (EV_P_ struct ev_once *once, int revents) |
2570 | { |
3875 | { |
2571 | void (*cb)(int revents, void *arg) = once->cb; |
3876 | void (*cb)(int revents, void *arg) = once->cb; |
2572 | void *arg = once->arg; |
3877 | void *arg = once->arg; |
2573 | |
3878 | |
2574 | ev_io_stop (EV_A_ &once->io); |
3879 | ev_io_stop (EV_A_ &once->io); |
2575 | ev_timer_stop (EV_A_ &once->to); |
3880 | ev_timer_stop (EV_A_ &once->to); |
2576 | ev_free (once); |
3881 | ev_free (once); |
2577 | |
3882 | |
2578 | cb (revents, arg); |
3883 | cb (revents, arg); |
2579 | } |
3884 | } |
2580 | |
3885 | |
2581 | static void |
3886 | static void |
2582 | once_cb_io (EV_P_ ev_io *w, int revents) |
3887 | once_cb_io (EV_P_ ev_io *w, int revents) |
2583 | { |
3888 | { |
2584 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3889 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3890 | |
|
|
3891 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2585 | } |
3892 | } |
2586 | |
3893 | |
2587 | static void |
3894 | static void |
2588 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3895 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2589 | { |
3896 | { |
2590 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3897 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3898 | |
|
|
3899 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2591 | } |
3900 | } |
2592 | |
3901 | |
2593 | void |
3902 | void |
2594 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3903 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2595 | { |
3904 | { |
2596 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3905 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2597 | |
3906 | |
2598 | if (expect_false (!once)) |
3907 | if (expect_false (!once)) |
2599 | { |
3908 | { |
2600 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3909 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2601 | return; |
3910 | return; |
2602 | } |
3911 | } |
2603 | |
3912 | |
2604 | once->cb = cb; |
3913 | once->cb = cb; |
2605 | once->arg = arg; |
3914 | once->arg = arg; |
… | |
… | |
2617 | ev_timer_set (&once->to, timeout, 0.); |
3926 | ev_timer_set (&once->to, timeout, 0.); |
2618 | ev_timer_start (EV_A_ &once->to); |
3927 | ev_timer_start (EV_A_ &once->to); |
2619 | } |
3928 | } |
2620 | } |
3929 | } |
2621 | |
3930 | |
|
|
3931 | /*****************************************************************************/ |
|
|
3932 | |
|
|
3933 | #if EV_WALK_ENABLE |
|
|
3934 | void ecb_cold |
|
|
3935 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3936 | { |
|
|
3937 | int i, j; |
|
|
3938 | ev_watcher_list *wl, *wn; |
|
|
3939 | |
|
|
3940 | if (types & (EV_IO | EV_EMBED)) |
|
|
3941 | for (i = 0; i < anfdmax; ++i) |
|
|
3942 | for (wl = anfds [i].head; wl; ) |
|
|
3943 | { |
|
|
3944 | wn = wl->next; |
|
|
3945 | |
|
|
3946 | #if EV_EMBED_ENABLE |
|
|
3947 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3948 | { |
|
|
3949 | if (types & EV_EMBED) |
|
|
3950 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3951 | } |
|
|
3952 | else |
|
|
3953 | #endif |
|
|
3954 | #if EV_USE_INOTIFY |
|
|
3955 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3956 | ; |
|
|
3957 | else |
|
|
3958 | #endif |
|
|
3959 | if ((ev_io *)wl != &pipe_w) |
|
|
3960 | if (types & EV_IO) |
|
|
3961 | cb (EV_A_ EV_IO, wl); |
|
|
3962 | |
|
|
3963 | wl = wn; |
|
|
3964 | } |
|
|
3965 | |
|
|
3966 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3967 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3968 | #if EV_STAT_ENABLE |
|
|
3969 | /*TODO: timer is not always active*/ |
|
|
3970 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3971 | { |
|
|
3972 | if (types & EV_STAT) |
|
|
3973 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3974 | } |
|
|
3975 | else |
|
|
3976 | #endif |
|
|
3977 | if (types & EV_TIMER) |
|
|
3978 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3979 | |
|
|
3980 | #if EV_PERIODIC_ENABLE |
|
|
3981 | if (types & EV_PERIODIC) |
|
|
3982 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3983 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3984 | #endif |
|
|
3985 | |
|
|
3986 | #if EV_IDLE_ENABLE |
|
|
3987 | if (types & EV_IDLE) |
|
|
3988 | for (j = NUMPRI; i--; ) |
|
|
3989 | for (i = idlecnt [j]; i--; ) |
|
|
3990 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3991 | #endif |
|
|
3992 | |
|
|
3993 | #if EV_FORK_ENABLE |
|
|
3994 | if (types & EV_FORK) |
|
|
3995 | for (i = forkcnt; i--; ) |
|
|
3996 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3997 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3998 | #endif |
|
|
3999 | |
|
|
4000 | #if EV_ASYNC_ENABLE |
|
|
4001 | if (types & EV_ASYNC) |
|
|
4002 | for (i = asynccnt; i--; ) |
|
|
4003 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4004 | #endif |
|
|
4005 | |
|
|
4006 | #if EV_PREPARE_ENABLE |
|
|
4007 | if (types & EV_PREPARE) |
|
|
4008 | for (i = preparecnt; i--; ) |
|
|
4009 | # if EV_EMBED_ENABLE |
|
|
4010 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4011 | # endif |
|
|
4012 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4013 | #endif |
|
|
4014 | |
|
|
4015 | #if EV_CHECK_ENABLE |
|
|
4016 | if (types & EV_CHECK) |
|
|
4017 | for (i = checkcnt; i--; ) |
|
|
4018 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4019 | #endif |
|
|
4020 | |
|
|
4021 | #if EV_SIGNAL_ENABLE |
|
|
4022 | if (types & EV_SIGNAL) |
|
|
4023 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4024 | for (wl = signals [i].head; wl; ) |
|
|
4025 | { |
|
|
4026 | wn = wl->next; |
|
|
4027 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4028 | wl = wn; |
|
|
4029 | } |
|
|
4030 | #endif |
|
|
4031 | |
|
|
4032 | #if EV_CHILD_ENABLE |
|
|
4033 | if (types & EV_CHILD) |
|
|
4034 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4035 | for (wl = childs [i]; wl; ) |
|
|
4036 | { |
|
|
4037 | wn = wl->next; |
|
|
4038 | cb (EV_A_ EV_CHILD, wl); |
|
|
4039 | wl = wn; |
|
|
4040 | } |
|
|
4041 | #endif |
|
|
4042 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4043 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4044 | } |
|
|
4045 | #endif |
|
|
4046 | |
2622 | #if EV_MULTIPLICITY |
4047 | #if EV_MULTIPLICITY |
2623 | #include "ev_wrap.h" |
4048 | #include "ev_wrap.h" |
2624 | #endif |
4049 | #endif |
2625 | |
4050 | |
2626 | #ifdef __cplusplus |
4051 | EV_CPP(}) |
2627 | } |
|
|
2628 | #endif |
|
|
2629 | |
4052 | |