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 | |
|
|
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
468 | |
|
|
469 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
470 | /* ECB.H BEGIN */ |
|
|
471 | /* |
|
|
472 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
473 | * |
|
|
474 | * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
475 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
476 | * All rights reserved. |
|
|
477 | * |
|
|
478 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
479 | * tion, are permitted provided that the following conditions are met: |
|
|
480 | * |
|
|
481 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
482 | * this list of conditions and the following disclaimer. |
|
|
483 | * |
|
|
484 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
485 | * notice, this list of conditions and the following disclaimer in the |
|
|
486 | * documentation and/or other materials provided with the distribution. |
|
|
487 | * |
|
|
488 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
489 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
490 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
491 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
492 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
493 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
494 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
495 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
496 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
497 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
498 | */ |
|
|
499 | |
|
|
500 | #ifndef ECB_H |
|
|
501 | #define ECB_H |
|
|
502 | |
|
|
503 | #ifdef _WIN32 |
|
|
504 | typedef signed char int8_t; |
|
|
505 | typedef unsigned char uint8_t; |
|
|
506 | typedef signed short int16_t; |
|
|
507 | typedef unsigned short uint16_t; |
|
|
508 | typedef signed int int32_t; |
|
|
509 | typedef unsigned int uint32_t; |
299 | #if __GNUC__ >= 4 |
510 | #if __GNUC__ |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
511 | typedef signed long long int64_t; |
301 | # define noinline __attribute__ ((noinline)) |
512 | typedef unsigned long long uint64_t; |
|
|
513 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
514 | typedef signed __int64 int64_t; |
|
|
515 | typedef unsigned __int64 uint64_t; |
|
|
516 | #endif |
302 | #else |
517 | #else |
303 | # define expect(expr,value) (expr) |
518 | #include <inttypes.h> |
304 | # define noinline |
|
|
305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
306 | # define inline |
|
|
307 | # endif |
519 | #endif |
|
|
520 | |
|
|
521 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
522 | * what their idiot authors think are the "more important" extensions, |
|
|
523 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
524 | * or so. |
|
|
525 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
526 | * an issue with that they should have done it right in the first place. |
|
|
527 | */ |
|
|
528 | #ifndef ECB_GCC_VERSION |
|
|
529 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
|
530 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
531 | #else |
|
|
532 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
308 | #endif |
533 | #endif |
|
|
534 | #endif |
309 | |
535 | |
|
|
536 | /*****************************************************************************/ |
|
|
537 | |
|
|
538 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
539 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
540 | |
|
|
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
542 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
543 | #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0) |
|
|
544 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) |
|
|
545 | #endif |
|
|
546 | |
|
|
547 | #ifndef ECB_MEMORY_FENCE |
|
|
548 | #if ECB_GCC_VERSION(2,5) |
|
|
549 | #if __x86 |
|
|
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
551 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
552 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
553 | #elif __amd64 |
|
|
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
555 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
556 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
557 | #endif |
|
|
558 | #endif |
|
|
559 | #endif |
|
|
560 | |
|
|
561 | #ifndef ECB_MEMORY_FENCE |
|
|
562 | #if ECB_GCC_VERSION(4,4) |
|
|
563 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
564 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
|
|
565 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
|
|
566 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
567 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
568 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
569 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
570 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
571 | #elif defined(_WIN32) |
|
|
572 | #include <WinNT.h> |
|
|
573 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
574 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
575 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
576 | #endif |
|
|
577 | #endif |
|
|
578 | |
|
|
579 | #ifndef ECB_MEMORY_FENCE |
|
|
580 | /* |
|
|
581 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
582 | * or failure to find pthread.h, then you should implement |
|
|
583 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
584 | * OR provide pthread.h and link against the posix thread library |
|
|
585 | * of your system. |
|
|
586 | */ |
|
|
587 | #include <pthread.h> |
|
|
588 | #define ECB_NEEDS_PTHREADS 1 |
|
|
589 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
590 | |
|
|
591 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
592 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
593 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
594 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
595 | #endif |
|
|
596 | |
|
|
597 | /*****************************************************************************/ |
|
|
598 | |
|
|
599 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
600 | |
|
|
601 | #if __cplusplus |
|
|
602 | #define ecb_inline static inline |
|
|
603 | #elif ECB_GCC_VERSION(2,5) |
|
|
604 | #define ecb_inline static __inline__ |
|
|
605 | #elif ECB_C99 |
|
|
606 | #define ecb_inline static inline |
|
|
607 | #else |
|
|
608 | #define ecb_inline static |
|
|
609 | #endif |
|
|
610 | |
|
|
611 | #if ECB_GCC_VERSION(3,3) |
|
|
612 | #define ecb_restrict __restrict__ |
|
|
613 | #elif ECB_C99 |
|
|
614 | #define ecb_restrict restrict |
|
|
615 | #else |
|
|
616 | #define ecb_restrict |
|
|
617 | #endif |
|
|
618 | |
|
|
619 | typedef int ecb_bool; |
|
|
620 | |
|
|
621 | #define ECB_CONCAT_(a, b) a ## b |
|
|
622 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
623 | #define ECB_STRINGIFY_(a) # a |
|
|
624 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
625 | |
|
|
626 | #define ecb_function_ ecb_inline |
|
|
627 | |
|
|
628 | #if ECB_GCC_VERSION(3,1) |
|
|
629 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
630 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
631 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
632 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
633 | #else |
|
|
634 | #define ecb_attribute(attrlist) |
|
|
635 | #define ecb_is_constant(expr) 0 |
|
|
636 | #define ecb_expect(expr,value) (expr) |
|
|
637 | #define ecb_prefetch(addr,rw,locality) |
|
|
638 | #endif |
|
|
639 | |
|
|
640 | /* no emulation for ecb_decltype */ |
|
|
641 | #if ECB_GCC_VERSION(4,5) |
|
|
642 | #define ecb_decltype(x) __decltype(x) |
|
|
643 | #elif ECB_GCC_VERSION(3,0) |
|
|
644 | #define ecb_decltype(x) __typeof(x) |
|
|
645 | #endif |
|
|
646 | |
|
|
647 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
648 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
649 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
650 | #define ecb_const ecb_attribute ((__const__)) |
|
|
651 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
652 | |
|
|
653 | #if ECB_GCC_VERSION(4,3) |
|
|
654 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
655 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
656 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
657 | #else |
|
|
658 | #define ecb_artificial |
|
|
659 | #define ecb_hot |
|
|
660 | #define ecb_cold |
|
|
661 | #endif |
|
|
662 | |
|
|
663 | /* put around conditional expressions if you are very sure that the */ |
|
|
664 | /* expression is mostly true or mostly false. note that these return */ |
|
|
665 | /* booleans, not the expression. */ |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
666 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
667 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
668 | /* for compatibility to the rest of the world */ |
|
|
669 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
670 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
671 | |
|
|
672 | /* count trailing zero bits and count # of one bits */ |
|
|
673 | #if ECB_GCC_VERSION(3,4) |
|
|
674 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
675 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
676 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
677 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
678 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
679 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
680 | /* no popcountll */ |
|
|
681 | #else |
|
|
682 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
683 | ecb_function_ int |
|
|
684 | ecb_ctz32 (uint32_t x) |
|
|
685 | { |
|
|
686 | int r = 0; |
|
|
687 | |
|
|
688 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
689 | |
|
|
690 | #if ECB_branchless_on_i386 |
|
|
691 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
692 | r += !!(x & 0xcccccccc) << 1; |
|
|
693 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
694 | r += !!(x & 0xff00ff00) << 3; |
|
|
695 | r += !!(x & 0xffff0000) << 4; |
|
|
696 | #else |
|
|
697 | if (x & 0xaaaaaaaa) r += 1; |
|
|
698 | if (x & 0xcccccccc) r += 2; |
|
|
699 | if (x & 0xf0f0f0f0) r += 4; |
|
|
700 | if (x & 0xff00ff00) r += 8; |
|
|
701 | if (x & 0xffff0000) r += 16; |
|
|
702 | #endif |
|
|
703 | |
|
|
704 | return r; |
|
|
705 | } |
|
|
706 | |
|
|
707 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
708 | ecb_function_ int |
|
|
709 | ecb_ctz64 (uint64_t x) |
|
|
710 | { |
|
|
711 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
712 | return ecb_ctz32 (x >> shift) + shift; |
|
|
713 | } |
|
|
714 | |
|
|
715 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
716 | ecb_function_ int |
|
|
717 | ecb_popcount32 (uint32_t x) |
|
|
718 | { |
|
|
719 | x -= (x >> 1) & 0x55555555; |
|
|
720 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
721 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
722 | x *= 0x01010101; |
|
|
723 | |
|
|
724 | return x >> 24; |
|
|
725 | } |
|
|
726 | |
|
|
727 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
728 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
729 | { |
|
|
730 | int r = 0; |
|
|
731 | |
|
|
732 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
733 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
734 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
735 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
736 | if (x >> 1) { r += 1; } |
|
|
737 | |
|
|
738 | return r; |
|
|
739 | } |
|
|
740 | |
|
|
741 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
742 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
743 | { |
|
|
744 | int r = 0; |
|
|
745 | |
|
|
746 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
747 | |
|
|
748 | return r + ecb_ld32 (x); |
|
|
749 | } |
|
|
750 | #endif |
|
|
751 | |
|
|
752 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
753 | /* so for this version we are lazy */ |
|
|
754 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
755 | ecb_function_ int |
|
|
756 | ecb_popcount64 (uint64_t x) |
|
|
757 | { |
|
|
758 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
759 | } |
|
|
760 | |
|
|
761 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
762 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
763 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
764 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
765 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
766 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
767 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
768 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
769 | |
|
|
770 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
771 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
772 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
773 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
774 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
775 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
776 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
777 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
778 | |
|
|
779 | #if ECB_GCC_VERSION(4,3) |
|
|
780 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
781 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
782 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
783 | #else |
|
|
784 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
785 | ecb_function_ uint16_t |
|
|
786 | ecb_bswap16 (uint16_t x) |
|
|
787 | { |
|
|
788 | return ecb_rotl16 (x, 8); |
|
|
789 | } |
|
|
790 | |
|
|
791 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
792 | ecb_function_ uint32_t |
|
|
793 | ecb_bswap32 (uint32_t x) |
|
|
794 | { |
|
|
795 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
796 | } |
|
|
797 | |
|
|
798 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
799 | ecb_function_ uint64_t |
|
|
800 | ecb_bswap64 (uint64_t x) |
|
|
801 | { |
|
|
802 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
803 | } |
|
|
804 | #endif |
|
|
805 | |
|
|
806 | #if ECB_GCC_VERSION(4,5) |
|
|
807 | #define ecb_unreachable() __builtin_unreachable () |
|
|
808 | #else |
|
|
809 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
810 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
|
|
811 | ecb_function_ void ecb_unreachable (void) { } |
|
|
812 | #endif |
|
|
813 | |
|
|
814 | /* try to tell the compiler that some condition is definitely true */ |
|
|
815 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
816 | |
|
|
817 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
818 | ecb_function_ unsigned char |
|
|
819 | ecb_byteorder_helper (void) |
|
|
820 | { |
|
|
821 | const uint32_t u = 0x11223344; |
|
|
822 | return *(unsigned char *)&u; |
|
|
823 | } |
|
|
824 | |
|
|
825 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
|
|
826 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
827 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
|
|
828 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
829 | |
|
|
830 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
831 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
832 | #else |
|
|
833 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
834 | #endif |
|
|
835 | |
|
|
836 | #if ecb_cplusplus_does_not_suck |
|
|
837 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
838 | template<typename T, int N> |
|
|
839 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
840 | { |
|
|
841 | return N; |
|
|
842 | } |
|
|
843 | #else |
|
|
844 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
845 | #endif |
|
|
846 | |
|
|
847 | #endif |
|
|
848 | |
|
|
849 | /* ECB.H END */ |
|
|
850 | |
|
|
851 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
852 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
853 | #define noinline ecb_noinline |
|
|
854 | |
312 | #define inline_size static inline |
855 | #define inline_size ecb_inline |
313 | |
856 | |
314 | #if EV_MINIMAL |
857 | #if EV_FEATURE_CODE |
|
|
858 | # define inline_speed ecb_inline |
|
|
859 | #else |
315 | # define inline_speed static noinline |
860 | # define inline_speed static noinline |
|
|
861 | #endif |
|
|
862 | |
|
|
863 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
864 | |
|
|
865 | #if EV_MINPRI == EV_MAXPRI |
|
|
866 | # define ABSPRI(w) (((W)w), 0) |
316 | #else |
867 | #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) |
868 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
869 | #endif |
322 | |
870 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
871 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
872 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
873 | |
326 | typedef ev_watcher *W; |
874 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
875 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
876 | typedef ev_watcher_time *WT; |
329 | |
877 | |
|
|
878 | #define ev_active(w) ((W)(w))->active |
|
|
879 | #define ev_at(w) ((WT)(w))->at |
|
|
880 | |
|
|
881 | #if EV_USE_REALTIME |
|
|
882 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
883 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
884 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
885 | #endif |
|
|
886 | |
330 | #if EV_USE_MONOTONIC |
887 | #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? */ |
888 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
889 | #endif |
|
|
890 | |
|
|
891 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
892 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
893 | #endif |
|
|
894 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
895 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
896 | #endif |
|
|
897 | #ifndef EV_WIN32_CLOSE_FD |
|
|
898 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
334 | #endif |
899 | #endif |
335 | |
900 | |
336 | #ifdef _WIN32 |
901 | #ifdef _WIN32 |
337 | # include "ev_win32.c" |
902 | # include "ev_win32.c" |
338 | #endif |
903 | #endif |
339 | |
904 | |
340 | /*****************************************************************************/ |
905 | /*****************************************************************************/ |
341 | |
906 | |
|
|
907 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
908 | |
|
|
909 | #if EV_USE_FLOOR |
|
|
910 | # include <math.h> |
|
|
911 | # define ev_floor(v) floor (v) |
|
|
912 | #else |
|
|
913 | |
|
|
914 | #include <float.h> |
|
|
915 | |
|
|
916 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
917 | static ev_tstamp noinline |
|
|
918 | ev_floor (ev_tstamp v) |
|
|
919 | { |
|
|
920 | /* the choice of shift factor is not terribly important */ |
|
|
921 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
922 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
923 | #else |
|
|
924 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
925 | #endif |
|
|
926 | |
|
|
927 | /* argument too large for an unsigned long? */ |
|
|
928 | if (expect_false (v >= shift)) |
|
|
929 | { |
|
|
930 | ev_tstamp f; |
|
|
931 | |
|
|
932 | if (v == v - 1.) |
|
|
933 | return v; /* very large number */ |
|
|
934 | |
|
|
935 | f = shift * ev_floor (v * (1. / shift)); |
|
|
936 | return f + ev_floor (v - f); |
|
|
937 | } |
|
|
938 | |
|
|
939 | /* special treatment for negative args? */ |
|
|
940 | if (expect_false (v < 0.)) |
|
|
941 | { |
|
|
942 | ev_tstamp f = -ev_floor (-v); |
|
|
943 | |
|
|
944 | return f - (f == v ? 0 : 1); |
|
|
945 | } |
|
|
946 | |
|
|
947 | /* fits into an unsigned long */ |
|
|
948 | return (unsigned long)v; |
|
|
949 | } |
|
|
950 | |
|
|
951 | #endif |
|
|
952 | |
|
|
953 | /*****************************************************************************/ |
|
|
954 | |
|
|
955 | #ifdef __linux |
|
|
956 | # include <sys/utsname.h> |
|
|
957 | #endif |
|
|
958 | |
|
|
959 | static unsigned int noinline ecb_cold |
|
|
960 | ev_linux_version (void) |
|
|
961 | { |
|
|
962 | #ifdef __linux |
|
|
963 | unsigned int v = 0; |
|
|
964 | struct utsname buf; |
|
|
965 | int i; |
|
|
966 | char *p = buf.release; |
|
|
967 | |
|
|
968 | if (uname (&buf)) |
|
|
969 | return 0; |
|
|
970 | |
|
|
971 | for (i = 3+1; --i; ) |
|
|
972 | { |
|
|
973 | unsigned int c = 0; |
|
|
974 | |
|
|
975 | for (;;) |
|
|
976 | { |
|
|
977 | if (*p >= '0' && *p <= '9') |
|
|
978 | c = c * 10 + *p++ - '0'; |
|
|
979 | else |
|
|
980 | { |
|
|
981 | p += *p == '.'; |
|
|
982 | break; |
|
|
983 | } |
|
|
984 | } |
|
|
985 | |
|
|
986 | v = (v << 8) | c; |
|
|
987 | } |
|
|
988 | |
|
|
989 | return v; |
|
|
990 | #else |
|
|
991 | return 0; |
|
|
992 | #endif |
|
|
993 | } |
|
|
994 | |
|
|
995 | /*****************************************************************************/ |
|
|
996 | |
|
|
997 | #if EV_AVOID_STDIO |
|
|
998 | static void noinline ecb_cold |
|
|
999 | ev_printerr (const char *msg) |
|
|
1000 | { |
|
|
1001 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1002 | } |
|
|
1003 | #endif |
|
|
1004 | |
342 | static void (*syserr_cb)(const char *msg); |
1005 | static void (*syserr_cb)(const char *msg); |
343 | |
1006 | |
344 | void |
1007 | void ecb_cold |
345 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1008 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
346 | { |
1009 | { |
347 | syserr_cb = cb; |
1010 | syserr_cb = cb; |
348 | } |
1011 | } |
349 | |
1012 | |
350 | static void noinline |
1013 | static void noinline ecb_cold |
351 | syserr (const char *msg) |
1014 | ev_syserr (const char *msg) |
352 | { |
1015 | { |
353 | if (!msg) |
1016 | if (!msg) |
354 | msg = "(libev) system error"; |
1017 | msg = "(libev) system error"; |
355 | |
1018 | |
356 | if (syserr_cb) |
1019 | if (syserr_cb) |
357 | syserr_cb (msg); |
1020 | syserr_cb (msg); |
358 | else |
1021 | else |
359 | { |
1022 | { |
|
|
1023 | #if EV_AVOID_STDIO |
|
|
1024 | ev_printerr (msg); |
|
|
1025 | ev_printerr (": "); |
|
|
1026 | ev_printerr (strerror (errno)); |
|
|
1027 | ev_printerr ("\n"); |
|
|
1028 | #else |
360 | perror (msg); |
1029 | perror (msg); |
|
|
1030 | #endif |
361 | abort (); |
1031 | abort (); |
362 | } |
1032 | } |
363 | } |
1033 | } |
364 | |
1034 | |
|
|
1035 | static void * |
|
|
1036 | ev_realloc_emul (void *ptr, long size) |
|
|
1037 | { |
|
|
1038 | #if __GLIBC__ |
|
|
1039 | return realloc (ptr, size); |
|
|
1040 | #else |
|
|
1041 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
1042 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
1043 | * the single unix specification, so work around them here. |
|
|
1044 | */ |
|
|
1045 | |
|
|
1046 | if (size) |
|
|
1047 | return realloc (ptr, size); |
|
|
1048 | |
|
|
1049 | free (ptr); |
|
|
1050 | return 0; |
|
|
1051 | #endif |
|
|
1052 | } |
|
|
1053 | |
365 | static void *(*alloc)(void *ptr, long size); |
1054 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
366 | |
1055 | |
367 | void |
1056 | void ecb_cold |
368 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1057 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
369 | { |
1058 | { |
370 | alloc = cb; |
1059 | alloc = cb; |
371 | } |
1060 | } |
372 | |
1061 | |
373 | inline_speed void * |
1062 | inline_speed void * |
374 | ev_realloc (void *ptr, long size) |
1063 | ev_realloc (void *ptr, long size) |
375 | { |
1064 | { |
376 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
1065 | ptr = alloc (ptr, size); |
377 | |
1066 | |
378 | if (!ptr && size) |
1067 | if (!ptr && size) |
379 | { |
1068 | { |
|
|
1069 | #if EV_AVOID_STDIO |
|
|
1070 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1071 | #else |
380 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1072 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1073 | #endif |
381 | abort (); |
1074 | abort (); |
382 | } |
1075 | } |
383 | |
1076 | |
384 | return ptr; |
1077 | return ptr; |
385 | } |
1078 | } |
… | |
… | |
387 | #define ev_malloc(size) ev_realloc (0, (size)) |
1080 | #define ev_malloc(size) ev_realloc (0, (size)) |
388 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1081 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
389 | |
1082 | |
390 | /*****************************************************************************/ |
1083 | /*****************************************************************************/ |
391 | |
1084 | |
|
|
1085 | /* set in reify when reification needed */ |
|
|
1086 | #define EV_ANFD_REIFY 1 |
|
|
1087 | |
|
|
1088 | /* file descriptor info structure */ |
392 | typedef struct |
1089 | typedef struct |
393 | { |
1090 | { |
394 | WL head; |
1091 | WL head; |
395 | unsigned char events; |
1092 | unsigned char events; /* the events watched for */ |
|
|
1093 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1094 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
396 | unsigned char reify; |
1095 | unsigned char unused; |
|
|
1096 | #if EV_USE_EPOLL |
|
|
1097 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1098 | #endif |
397 | #if EV_SELECT_IS_WINSOCKET |
1099 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
398 | SOCKET handle; |
1100 | SOCKET handle; |
399 | #endif |
1101 | #endif |
|
|
1102 | #if EV_USE_IOCP |
|
|
1103 | OVERLAPPED or, ow; |
|
|
1104 | #endif |
400 | } ANFD; |
1105 | } ANFD; |
401 | |
1106 | |
|
|
1107 | /* stores the pending event set for a given watcher */ |
402 | typedef struct |
1108 | typedef struct |
403 | { |
1109 | { |
404 | W w; |
1110 | W w; |
405 | int events; |
1111 | int events; /* the pending event set for the given watcher */ |
406 | } ANPENDING; |
1112 | } ANPENDING; |
407 | |
1113 | |
408 | #if EV_USE_INOTIFY |
1114 | #if EV_USE_INOTIFY |
|
|
1115 | /* hash table entry per inotify-id */ |
409 | typedef struct |
1116 | typedef struct |
410 | { |
1117 | { |
411 | WL head; |
1118 | WL head; |
412 | } ANFS; |
1119 | } ANFS; |
|
|
1120 | #endif |
|
|
1121 | |
|
|
1122 | /* Heap Entry */ |
|
|
1123 | #if EV_HEAP_CACHE_AT |
|
|
1124 | /* a heap element */ |
|
|
1125 | typedef struct { |
|
|
1126 | ev_tstamp at; |
|
|
1127 | WT w; |
|
|
1128 | } ANHE; |
|
|
1129 | |
|
|
1130 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
1131 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
1132 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
1133 | #else |
|
|
1134 | /* a heap element */ |
|
|
1135 | typedef WT ANHE; |
|
|
1136 | |
|
|
1137 | #define ANHE_w(he) (he) |
|
|
1138 | #define ANHE_at(he) (he)->at |
|
|
1139 | #define ANHE_at_cache(he) |
413 | #endif |
1140 | #endif |
414 | |
1141 | |
415 | #if EV_MULTIPLICITY |
1142 | #if EV_MULTIPLICITY |
416 | |
1143 | |
417 | struct ev_loop |
1144 | struct ev_loop |
… | |
… | |
436 | |
1163 | |
437 | static int ev_default_loop_ptr; |
1164 | static int ev_default_loop_ptr; |
438 | |
1165 | |
439 | #endif |
1166 | #endif |
440 | |
1167 | |
|
|
1168 | #if EV_FEATURE_API |
|
|
1169 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1170 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1171 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1172 | #else |
|
|
1173 | # define EV_RELEASE_CB (void)0 |
|
|
1174 | # define EV_ACQUIRE_CB (void)0 |
|
|
1175 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1176 | #endif |
|
|
1177 | |
|
|
1178 | #define EVBREAK_RECURSE 0x80 |
|
|
1179 | |
441 | /*****************************************************************************/ |
1180 | /*****************************************************************************/ |
442 | |
1181 | |
|
|
1182 | #ifndef EV_HAVE_EV_TIME |
443 | ev_tstamp |
1183 | ev_tstamp |
444 | ev_time (void) |
1184 | ev_time (void) |
445 | { |
1185 | { |
446 | #if EV_USE_REALTIME |
1186 | #if EV_USE_REALTIME |
|
|
1187 | if (expect_true (have_realtime)) |
|
|
1188 | { |
447 | struct timespec ts; |
1189 | struct timespec ts; |
448 | clock_gettime (CLOCK_REALTIME, &ts); |
1190 | clock_gettime (CLOCK_REALTIME, &ts); |
449 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1191 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
450 | #else |
1192 | } |
|
|
1193 | #endif |
|
|
1194 | |
451 | struct timeval tv; |
1195 | struct timeval tv; |
452 | gettimeofday (&tv, 0); |
1196 | gettimeofday (&tv, 0); |
453 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1197 | return tv.tv_sec + tv.tv_usec * 1e-6; |
454 | #endif |
|
|
455 | } |
1198 | } |
|
|
1199 | #endif |
456 | |
1200 | |
457 | ev_tstamp inline_size |
1201 | inline_size ev_tstamp |
458 | get_clock (void) |
1202 | get_clock (void) |
459 | { |
1203 | { |
460 | #if EV_USE_MONOTONIC |
1204 | #if EV_USE_MONOTONIC |
461 | if (expect_true (have_monotonic)) |
1205 | if (expect_true (have_monotonic)) |
462 | { |
1206 | { |
… | |
… | |
483 | if (delay > 0.) |
1227 | if (delay > 0.) |
484 | { |
1228 | { |
485 | #if EV_USE_NANOSLEEP |
1229 | #if EV_USE_NANOSLEEP |
486 | struct timespec ts; |
1230 | struct timespec ts; |
487 | |
1231 | |
488 | ts.tv_sec = (time_t)delay; |
1232 | EV_TS_SET (ts, delay); |
489 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
490 | |
|
|
491 | nanosleep (&ts, 0); |
1233 | nanosleep (&ts, 0); |
492 | #elif defined(_WIN32) |
1234 | #elif defined(_WIN32) |
493 | Sleep ((unsigned long)(delay * 1e3)); |
1235 | Sleep ((unsigned long)(delay * 1e3)); |
494 | #else |
1236 | #else |
495 | struct timeval tv; |
1237 | struct timeval tv; |
496 | |
1238 | |
497 | tv.tv_sec = (time_t)delay; |
1239 | /* 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); |
1240 | /* something not guaranteed by newer posix versions, but guaranteed */ |
499 | |
1241 | /* by older ones */ |
|
|
1242 | EV_TV_SET (tv, delay); |
500 | select (0, 0, 0, 0, &tv); |
1243 | select (0, 0, 0, 0, &tv); |
501 | #endif |
1244 | #endif |
502 | } |
1245 | } |
503 | } |
1246 | } |
504 | |
1247 | |
505 | /*****************************************************************************/ |
1248 | /*****************************************************************************/ |
506 | |
1249 | |
507 | int inline_size |
1250 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
1251 | |
|
|
1252 | /* find a suitable new size for the given array, */ |
|
|
1253 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1254 | inline_size int |
508 | array_nextsize (int elem, int cur, int cnt) |
1255 | array_nextsize (int elem, int cur, int cnt) |
509 | { |
1256 | { |
510 | int ncur = cur + 1; |
1257 | int ncur = cur + 1; |
511 | |
1258 | |
512 | do |
1259 | do |
513 | ncur <<= 1; |
1260 | ncur <<= 1; |
514 | while (cnt > ncur); |
1261 | while (cnt > ncur); |
515 | |
1262 | |
516 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
1263 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
517 | if (elem * ncur > 4096) |
1264 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
518 | { |
1265 | { |
519 | ncur *= elem; |
1266 | ncur *= elem; |
520 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
1267 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
521 | ncur = ncur - sizeof (void *) * 4; |
1268 | ncur = ncur - sizeof (void *) * 4; |
522 | ncur /= elem; |
1269 | ncur /= elem; |
523 | } |
1270 | } |
524 | |
1271 | |
525 | return ncur; |
1272 | return ncur; |
526 | } |
1273 | } |
527 | |
1274 | |
528 | static noinline void * |
1275 | static void * noinline ecb_cold |
529 | array_realloc (int elem, void *base, int *cur, int cnt) |
1276 | array_realloc (int elem, void *base, int *cur, int cnt) |
530 | { |
1277 | { |
531 | *cur = array_nextsize (elem, *cur, cnt); |
1278 | *cur = array_nextsize (elem, *cur, cnt); |
532 | return ev_realloc (base, elem * *cur); |
1279 | return ev_realloc (base, elem * *cur); |
533 | } |
1280 | } |
|
|
1281 | |
|
|
1282 | #define array_init_zero(base,count) \ |
|
|
1283 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
534 | |
1284 | |
535 | #define array_needsize(type,base,cur,cnt,init) \ |
1285 | #define array_needsize(type,base,cur,cnt,init) \ |
536 | if (expect_false ((cnt) > (cur))) \ |
1286 | if (expect_false ((cnt) > (cur))) \ |
537 | { \ |
1287 | { \ |
538 | int ocur_ = (cur); \ |
1288 | int ecb_unused ocur_ = (cur); \ |
539 | (base) = (type *)array_realloc \ |
1289 | (base) = (type *)array_realloc \ |
540 | (sizeof (type), (base), &(cur), (cnt)); \ |
1290 | (sizeof (type), (base), &(cur), (cnt)); \ |
541 | init ((base) + (ocur_), (cur) - ocur_); \ |
1291 | init ((base) + (ocur_), (cur) - ocur_); \ |
542 | } |
1292 | } |
543 | |
1293 | |
… | |
… | |
550 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1300 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
551 | } |
1301 | } |
552 | #endif |
1302 | #endif |
553 | |
1303 | |
554 | #define array_free(stem, idx) \ |
1304 | #define array_free(stem, idx) \ |
555 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1305 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
556 | |
1306 | |
557 | /*****************************************************************************/ |
1307 | /*****************************************************************************/ |
|
|
1308 | |
|
|
1309 | /* dummy callback for pending events */ |
|
|
1310 | static void noinline |
|
|
1311 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1312 | { |
|
|
1313 | } |
558 | |
1314 | |
559 | void noinline |
1315 | void noinline |
560 | ev_feed_event (EV_P_ void *w, int revents) |
1316 | ev_feed_event (EV_P_ void *w, int revents) |
561 | { |
1317 | { |
562 | W w_ = (W)w; |
1318 | W w_ = (W)w; |
… | |
… | |
571 | pendings [pri][w_->pending - 1].w = w_; |
1327 | pendings [pri][w_->pending - 1].w = w_; |
572 | pendings [pri][w_->pending - 1].events = revents; |
1328 | pendings [pri][w_->pending - 1].events = revents; |
573 | } |
1329 | } |
574 | } |
1330 | } |
575 | |
1331 | |
576 | void inline_speed |
1332 | inline_speed void |
|
|
1333 | feed_reverse (EV_P_ W w) |
|
|
1334 | { |
|
|
1335 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1336 | rfeeds [rfeedcnt++] = w; |
|
|
1337 | } |
|
|
1338 | |
|
|
1339 | inline_size void |
|
|
1340 | feed_reverse_done (EV_P_ int revents) |
|
|
1341 | { |
|
|
1342 | do |
|
|
1343 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1344 | while (rfeedcnt); |
|
|
1345 | } |
|
|
1346 | |
|
|
1347 | inline_speed void |
577 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1348 | queue_events (EV_P_ W *events, int eventcnt, int type) |
578 | { |
1349 | { |
579 | int i; |
1350 | int i; |
580 | |
1351 | |
581 | for (i = 0; i < eventcnt; ++i) |
1352 | for (i = 0; i < eventcnt; ++i) |
582 | ev_feed_event (EV_A_ events [i], type); |
1353 | ev_feed_event (EV_A_ events [i], type); |
583 | } |
1354 | } |
584 | |
1355 | |
585 | /*****************************************************************************/ |
1356 | /*****************************************************************************/ |
586 | |
1357 | |
587 | void inline_size |
1358 | 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) |
1359 | fd_event_nocheck (EV_P_ int fd, int revents) |
602 | { |
1360 | { |
603 | ANFD *anfd = anfds + fd; |
1361 | ANFD *anfd = anfds + fd; |
604 | ev_io *w; |
1362 | ev_io *w; |
605 | |
1363 | |
606 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1364 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
610 | if (ev) |
1368 | if (ev) |
611 | ev_feed_event (EV_A_ (W)w, ev); |
1369 | ev_feed_event (EV_A_ (W)w, ev); |
612 | } |
1370 | } |
613 | } |
1371 | } |
614 | |
1372 | |
|
|
1373 | /* do not submit kernel events for fds that have reify set */ |
|
|
1374 | /* because that means they changed while we were polling for new events */ |
|
|
1375 | inline_speed void |
|
|
1376 | fd_event (EV_P_ int fd, int revents) |
|
|
1377 | { |
|
|
1378 | ANFD *anfd = anfds + fd; |
|
|
1379 | |
|
|
1380 | if (expect_true (!anfd->reify)) |
|
|
1381 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1382 | } |
|
|
1383 | |
615 | void |
1384 | void |
616 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1385 | ev_feed_fd_event (EV_P_ int fd, int revents) |
617 | { |
1386 | { |
618 | if (fd >= 0 && fd < anfdmax) |
1387 | if (fd >= 0 && fd < anfdmax) |
619 | fd_event (EV_A_ fd, revents); |
1388 | fd_event_nocheck (EV_A_ fd, revents); |
620 | } |
1389 | } |
621 | |
1390 | |
622 | void inline_size |
1391 | /* make sure the external fd watch events are in-sync */ |
|
|
1392 | /* with the kernel/libev internal state */ |
|
|
1393 | inline_size void |
623 | fd_reify (EV_P) |
1394 | fd_reify (EV_P) |
624 | { |
1395 | { |
625 | int i; |
1396 | int i; |
|
|
1397 | |
|
|
1398 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1399 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1400 | { |
|
|
1401 | int fd = fdchanges [i]; |
|
|
1402 | ANFD *anfd = anfds + fd; |
|
|
1403 | |
|
|
1404 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1405 | { |
|
|
1406 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1407 | |
|
|
1408 | if (handle != anfd->handle) |
|
|
1409 | { |
|
|
1410 | unsigned long arg; |
|
|
1411 | |
|
|
1412 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1413 | |
|
|
1414 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1415 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1416 | anfd->events = 0; |
|
|
1417 | anfd->handle = handle; |
|
|
1418 | } |
|
|
1419 | } |
|
|
1420 | } |
|
|
1421 | #endif |
626 | |
1422 | |
627 | for (i = 0; i < fdchangecnt; ++i) |
1423 | for (i = 0; i < fdchangecnt; ++i) |
628 | { |
1424 | { |
629 | int fd = fdchanges [i]; |
1425 | int fd = fdchanges [i]; |
630 | ANFD *anfd = anfds + fd; |
1426 | ANFD *anfd = anfds + fd; |
631 | ev_io *w; |
1427 | ev_io *w; |
632 | |
1428 | |
633 | unsigned char events = 0; |
1429 | unsigned char o_events = anfd->events; |
|
|
1430 | unsigned char o_reify = anfd->reify; |
634 | |
1431 | |
635 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1432 | anfd->reify = 0; |
636 | events |= (unsigned char)w->events; |
|
|
637 | |
1433 | |
638 | #if EV_SELECT_IS_WINSOCKET |
1434 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
639 | if (events) |
|
|
640 | { |
1435 | { |
641 | unsigned long argp; |
1436 | anfd->events = 0; |
642 | #ifdef EV_FD_TO_WIN32_HANDLE |
1437 | |
643 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1438 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
644 | #else |
1439 | anfd->events |= (unsigned char)w->events; |
645 | anfd->handle = _get_osfhandle (fd); |
1440 | |
646 | #endif |
1441 | if (o_events != anfd->events) |
647 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1442 | o_reify = EV__IOFDSET; /* actually |= */ |
648 | } |
1443 | } |
649 | #endif |
|
|
650 | |
1444 | |
651 | { |
1445 | 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); |
1446 | backend_modify (EV_A_ fd, o_events, anfd->events); |
660 | } |
|
|
661 | } |
1447 | } |
662 | |
1448 | |
663 | fdchangecnt = 0; |
1449 | fdchangecnt = 0; |
664 | } |
1450 | } |
665 | |
1451 | |
666 | void inline_size |
1452 | /* something about the given fd changed */ |
|
|
1453 | inline_size void |
667 | fd_change (EV_P_ int fd, int flags) |
1454 | fd_change (EV_P_ int fd, int flags) |
668 | { |
1455 | { |
669 | unsigned char reify = anfds [fd].reify; |
1456 | unsigned char reify = anfds [fd].reify; |
670 | anfds [fd].reify |= flags; |
1457 | anfds [fd].reify |= flags; |
671 | |
1458 | |
… | |
… | |
675 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1462 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
676 | fdchanges [fdchangecnt - 1] = fd; |
1463 | fdchanges [fdchangecnt - 1] = fd; |
677 | } |
1464 | } |
678 | } |
1465 | } |
679 | |
1466 | |
680 | void inline_speed |
1467 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1468 | inline_speed void ecb_cold |
681 | fd_kill (EV_P_ int fd) |
1469 | fd_kill (EV_P_ int fd) |
682 | { |
1470 | { |
683 | ev_io *w; |
1471 | ev_io *w; |
684 | |
1472 | |
685 | while ((w = (ev_io *)anfds [fd].head)) |
1473 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
687 | ev_io_stop (EV_A_ w); |
1475 | ev_io_stop (EV_A_ w); |
688 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1476 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
689 | } |
1477 | } |
690 | } |
1478 | } |
691 | |
1479 | |
692 | int inline_size |
1480 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1481 | inline_size int ecb_cold |
693 | fd_valid (int fd) |
1482 | fd_valid (int fd) |
694 | { |
1483 | { |
695 | #ifdef _WIN32 |
1484 | #ifdef _WIN32 |
696 | return _get_osfhandle (fd) != -1; |
1485 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
697 | #else |
1486 | #else |
698 | return fcntl (fd, F_GETFD) != -1; |
1487 | return fcntl (fd, F_GETFD) != -1; |
699 | #endif |
1488 | #endif |
700 | } |
1489 | } |
701 | |
1490 | |
702 | /* called on EBADF to verify fds */ |
1491 | /* called on EBADF to verify fds */ |
703 | static void noinline |
1492 | static void noinline ecb_cold |
704 | fd_ebadf (EV_P) |
1493 | fd_ebadf (EV_P) |
705 | { |
1494 | { |
706 | int fd; |
1495 | int fd; |
707 | |
1496 | |
708 | for (fd = 0; fd < anfdmax; ++fd) |
1497 | for (fd = 0; fd < anfdmax; ++fd) |
709 | if (anfds [fd].events) |
1498 | if (anfds [fd].events) |
710 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1499 | if (!fd_valid (fd) && errno == EBADF) |
711 | fd_kill (EV_A_ fd); |
1500 | fd_kill (EV_A_ fd); |
712 | } |
1501 | } |
713 | |
1502 | |
714 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1503 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
715 | static void noinline |
1504 | static void noinline ecb_cold |
716 | fd_enomem (EV_P) |
1505 | fd_enomem (EV_P) |
717 | { |
1506 | { |
718 | int fd; |
1507 | int fd; |
719 | |
1508 | |
720 | for (fd = anfdmax; fd--; ) |
1509 | for (fd = anfdmax; fd--; ) |
721 | if (anfds [fd].events) |
1510 | if (anfds [fd].events) |
722 | { |
1511 | { |
723 | fd_kill (EV_A_ fd); |
1512 | fd_kill (EV_A_ fd); |
724 | return; |
1513 | break; |
725 | } |
1514 | } |
726 | } |
1515 | } |
727 | |
1516 | |
728 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1517 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
729 | static void noinline |
1518 | static void noinline |
… | |
… | |
733 | |
1522 | |
734 | for (fd = 0; fd < anfdmax; ++fd) |
1523 | for (fd = 0; fd < anfdmax; ++fd) |
735 | if (anfds [fd].events) |
1524 | if (anfds [fd].events) |
736 | { |
1525 | { |
737 | anfds [fd].events = 0; |
1526 | anfds [fd].events = 0; |
|
|
1527 | anfds [fd].emask = 0; |
738 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1528 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
739 | } |
1529 | } |
740 | } |
1530 | } |
741 | |
1531 | |
742 | /*****************************************************************************/ |
1532 | /* used to prepare libev internal fd's */ |
743 | |
1533 | /* this is not fork-safe */ |
744 | void inline_speed |
1534 | 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) |
1535 | fd_intern (int fd) |
829 | { |
1536 | { |
830 | #ifdef _WIN32 |
1537 | #ifdef _WIN32 |
831 | int arg = 1; |
1538 | unsigned long arg = 1; |
832 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1539 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
833 | #else |
1540 | #else |
834 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1541 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
835 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1542 | fcntl (fd, F_SETFL, O_NONBLOCK); |
836 | #endif |
1543 | #endif |
837 | } |
1544 | } |
838 | |
1545 | |
|
|
1546 | /*****************************************************************************/ |
|
|
1547 | |
|
|
1548 | /* |
|
|
1549 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1550 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1551 | * the branching factor of the d-tree. |
|
|
1552 | */ |
|
|
1553 | |
|
|
1554 | /* |
|
|
1555 | * at the moment we allow libev the luxury of two heaps, |
|
|
1556 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1557 | * which is more cache-efficient. |
|
|
1558 | * the difference is about 5% with 50000+ watchers. |
|
|
1559 | */ |
|
|
1560 | #if EV_USE_4HEAP |
|
|
1561 | |
|
|
1562 | #define DHEAP 4 |
|
|
1563 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1564 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1565 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1566 | |
|
|
1567 | /* away from the root */ |
|
|
1568 | inline_speed void |
|
|
1569 | downheap (ANHE *heap, int N, int k) |
|
|
1570 | { |
|
|
1571 | ANHE he = heap [k]; |
|
|
1572 | ANHE *E = heap + N + HEAP0; |
|
|
1573 | |
|
|
1574 | for (;;) |
|
|
1575 | { |
|
|
1576 | ev_tstamp minat; |
|
|
1577 | ANHE *minpos; |
|
|
1578 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1579 | |
|
|
1580 | /* find minimum child */ |
|
|
1581 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1582 | { |
|
|
1583 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1584 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1585 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1586 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1587 | } |
|
|
1588 | else if (pos < E) |
|
|
1589 | { |
|
|
1590 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1591 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1592 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1593 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1594 | } |
|
|
1595 | else |
|
|
1596 | break; |
|
|
1597 | |
|
|
1598 | if (ANHE_at (he) <= minat) |
|
|
1599 | break; |
|
|
1600 | |
|
|
1601 | heap [k] = *minpos; |
|
|
1602 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1603 | |
|
|
1604 | k = minpos - heap; |
|
|
1605 | } |
|
|
1606 | |
|
|
1607 | heap [k] = he; |
|
|
1608 | ev_active (ANHE_w (he)) = k; |
|
|
1609 | } |
|
|
1610 | |
|
|
1611 | #else /* 4HEAP */ |
|
|
1612 | |
|
|
1613 | #define HEAP0 1 |
|
|
1614 | #define HPARENT(k) ((k) >> 1) |
|
|
1615 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1616 | |
|
|
1617 | /* away from the root */ |
|
|
1618 | inline_speed void |
|
|
1619 | downheap (ANHE *heap, int N, int k) |
|
|
1620 | { |
|
|
1621 | ANHE he = heap [k]; |
|
|
1622 | |
|
|
1623 | for (;;) |
|
|
1624 | { |
|
|
1625 | int c = k << 1; |
|
|
1626 | |
|
|
1627 | if (c >= N + HEAP0) |
|
|
1628 | break; |
|
|
1629 | |
|
|
1630 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1631 | ? 1 : 0; |
|
|
1632 | |
|
|
1633 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1634 | break; |
|
|
1635 | |
|
|
1636 | heap [k] = heap [c]; |
|
|
1637 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1638 | |
|
|
1639 | k = c; |
|
|
1640 | } |
|
|
1641 | |
|
|
1642 | heap [k] = he; |
|
|
1643 | ev_active (ANHE_w (he)) = k; |
|
|
1644 | } |
|
|
1645 | #endif |
|
|
1646 | |
|
|
1647 | /* towards the root */ |
|
|
1648 | inline_speed void |
|
|
1649 | upheap (ANHE *heap, int k) |
|
|
1650 | { |
|
|
1651 | ANHE he = heap [k]; |
|
|
1652 | |
|
|
1653 | for (;;) |
|
|
1654 | { |
|
|
1655 | int p = HPARENT (k); |
|
|
1656 | |
|
|
1657 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1658 | break; |
|
|
1659 | |
|
|
1660 | heap [k] = heap [p]; |
|
|
1661 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1662 | k = p; |
|
|
1663 | } |
|
|
1664 | |
|
|
1665 | heap [k] = he; |
|
|
1666 | ev_active (ANHE_w (he)) = k; |
|
|
1667 | } |
|
|
1668 | |
|
|
1669 | /* move an element suitably so it is in a correct place */ |
|
|
1670 | inline_size void |
|
|
1671 | adjustheap (ANHE *heap, int N, int k) |
|
|
1672 | { |
|
|
1673 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1674 | upheap (heap, k); |
|
|
1675 | else |
|
|
1676 | downheap (heap, N, k); |
|
|
1677 | } |
|
|
1678 | |
|
|
1679 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1680 | inline_size void |
|
|
1681 | reheap (ANHE *heap, int N) |
|
|
1682 | { |
|
|
1683 | int i; |
|
|
1684 | |
|
|
1685 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1686 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1687 | for (i = 0; i < N; ++i) |
|
|
1688 | upheap (heap, i + HEAP0); |
|
|
1689 | } |
|
|
1690 | |
|
|
1691 | /*****************************************************************************/ |
|
|
1692 | |
|
|
1693 | /* associate signal watchers to a signal signal */ |
|
|
1694 | typedef struct |
|
|
1695 | { |
|
|
1696 | EV_ATOMIC_T pending; |
|
|
1697 | #if EV_MULTIPLICITY |
|
|
1698 | EV_P; |
|
|
1699 | #endif |
|
|
1700 | WL head; |
|
|
1701 | } ANSIG; |
|
|
1702 | |
|
|
1703 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1704 | |
|
|
1705 | /*****************************************************************************/ |
|
|
1706 | |
|
|
1707 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1708 | |
839 | static void noinline |
1709 | static void noinline ecb_cold |
840 | evpipe_init (EV_P) |
1710 | evpipe_init (EV_P) |
841 | { |
1711 | { |
842 | if (!ev_is_active (&pipeev)) |
1712 | if (!ev_is_active (&pipe_w)) |
843 | { |
1713 | { |
844 | #if EV_USE_EVENTFD |
1714 | # if EV_USE_EVENTFD |
|
|
1715 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1716 | if (evfd < 0 && errno == EINVAL) |
845 | if ((evfd = eventfd (0, 0)) >= 0) |
1717 | evfd = eventfd (0, 0); |
|
|
1718 | |
|
|
1719 | if (evfd >= 0) |
846 | { |
1720 | { |
847 | evpipe [0] = -1; |
1721 | evpipe [0] = -1; |
848 | fd_intern (evfd); |
1722 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
849 | ev_io_set (&pipeev, evfd, EV_READ); |
1723 | ev_io_set (&pipe_w, evfd, EV_READ); |
850 | } |
1724 | } |
851 | else |
1725 | else |
852 | #endif |
1726 | # endif |
853 | { |
1727 | { |
854 | while (pipe (evpipe)) |
1728 | while (pipe (evpipe)) |
855 | syserr ("(libev) error creating signal/async pipe"); |
1729 | ev_syserr ("(libev) error creating signal/async pipe"); |
856 | |
1730 | |
857 | fd_intern (evpipe [0]); |
1731 | fd_intern (evpipe [0]); |
858 | fd_intern (evpipe [1]); |
1732 | fd_intern (evpipe [1]); |
859 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1733 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
860 | } |
1734 | } |
861 | |
1735 | |
862 | ev_io_start (EV_A_ &pipeev); |
1736 | ev_io_start (EV_A_ &pipe_w); |
863 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1737 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
864 | } |
1738 | } |
865 | } |
1739 | } |
866 | |
1740 | |
867 | void inline_size |
1741 | inline_speed void |
868 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1742 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
869 | { |
1743 | { |
870 | if (!*flag) |
1744 | if (expect_true (*flag)) |
|
|
1745 | return; |
|
|
1746 | |
|
|
1747 | *flag = 1; |
|
|
1748 | |
|
|
1749 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1750 | |
|
|
1751 | pipe_write_skipped = 1; |
|
|
1752 | |
|
|
1753 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1754 | |
|
|
1755 | if (pipe_write_wanted) |
871 | { |
1756 | { |
|
|
1757 | int old_errno; |
|
|
1758 | |
|
|
1759 | pipe_write_skipped = 0; /* just an optimsiation, no fence needed */ |
|
|
1760 | |
872 | int old_errno = errno; /* save errno because write might clobber it */ |
1761 | old_errno = errno; /* save errno because write will clobber it */ |
873 | |
|
|
874 | *flag = 1; |
|
|
875 | |
1762 | |
876 | #if EV_USE_EVENTFD |
1763 | #if EV_USE_EVENTFD |
877 | if (evfd >= 0) |
1764 | if (evfd >= 0) |
878 | { |
1765 | { |
879 | uint64_t counter = 1; |
1766 | uint64_t counter = 1; |
880 | write (evfd, &counter, sizeof (uint64_t)); |
1767 | write (evfd, &counter, sizeof (uint64_t)); |
881 | } |
1768 | } |
882 | else |
1769 | else |
883 | #endif |
1770 | #endif |
|
|
1771 | { |
|
|
1772 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1773 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1774 | /* so when you think this write should be a send instead, please find out */ |
|
|
1775 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1776 | /* tell me. thank you. */ |
884 | write (evpipe [1], &old_errno, 1); |
1777 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1778 | } |
885 | |
1779 | |
886 | errno = old_errno; |
1780 | errno = old_errno; |
887 | } |
1781 | } |
888 | } |
1782 | } |
889 | |
1783 | |
|
|
1784 | /* called whenever the libev signal pipe */ |
|
|
1785 | /* got some events (signal, async) */ |
890 | static void |
1786 | static void |
891 | pipecb (EV_P_ ev_io *iow, int revents) |
1787 | pipecb (EV_P_ ev_io *iow, int revents) |
892 | { |
1788 | { |
|
|
1789 | int i; |
|
|
1790 | |
|
|
1791 | if (revents & EV_READ) |
|
|
1792 | { |
893 | #if EV_USE_EVENTFD |
1793 | #if EV_USE_EVENTFD |
894 | if (evfd >= 0) |
1794 | if (evfd >= 0) |
895 | { |
1795 | { |
896 | uint64_t counter = 1; |
1796 | uint64_t counter; |
897 | read (evfd, &counter, sizeof (uint64_t)); |
1797 | read (evfd, &counter, sizeof (uint64_t)); |
898 | } |
1798 | } |
899 | else |
1799 | else |
900 | #endif |
1800 | #endif |
901 | { |
1801 | { |
902 | char dummy; |
1802 | char dummy; |
|
|
1803 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
903 | read (evpipe [0], &dummy, 1); |
1804 | read (evpipe [0], &dummy, 1); |
|
|
1805 | } |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | pipe_write_skipped = 0; |
|
|
1809 | |
|
|
1810 | #if EV_SIGNAL_ENABLE |
|
|
1811 | if (sig_pending) |
904 | } |
1812 | { |
|
|
1813 | sig_pending = 0; |
905 | |
1814 | |
906 | if (gotsig && ev_is_default_loop (EV_A)) |
1815 | for (i = EV_NSIG - 1; i--; ) |
907 | { |
1816 | 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); |
1817 | ev_feed_signal_event (EV_A_ i + 1); |
914 | } |
1818 | } |
|
|
1819 | #endif |
915 | |
1820 | |
916 | #if EV_ASYNC_ENABLE |
1821 | #if EV_ASYNC_ENABLE |
917 | if (gotasync) |
1822 | if (async_pending) |
918 | { |
1823 | { |
919 | int i; |
1824 | async_pending = 0; |
920 | gotasync = 0; |
|
|
921 | |
1825 | |
922 | for (i = asynccnt; i--; ) |
1826 | for (i = asynccnt; i--; ) |
923 | if (asyncs [i]->sent) |
1827 | if (asyncs [i]->sent) |
924 | { |
1828 | { |
925 | asyncs [i]->sent = 0; |
1829 | asyncs [i]->sent = 0; |
… | |
… | |
929 | #endif |
1833 | #endif |
930 | } |
1834 | } |
931 | |
1835 | |
932 | /*****************************************************************************/ |
1836 | /*****************************************************************************/ |
933 | |
1837 | |
|
|
1838 | void |
|
|
1839 | ev_feed_signal (int signum) |
|
|
1840 | { |
|
|
1841 | #if EV_MULTIPLICITY |
|
|
1842 | EV_P = signals [signum - 1].loop; |
|
|
1843 | |
|
|
1844 | if (!EV_A) |
|
|
1845 | return; |
|
|
1846 | #endif |
|
|
1847 | |
|
|
1848 | if (!ev_active (&pipe_w)) |
|
|
1849 | return; |
|
|
1850 | |
|
|
1851 | signals [signum - 1].pending = 1; |
|
|
1852 | evpipe_write (EV_A_ &sig_pending); |
|
|
1853 | } |
|
|
1854 | |
934 | static void |
1855 | static void |
935 | ev_sighandler (int signum) |
1856 | ev_sighandler (int signum) |
936 | { |
1857 | { |
937 | #if EV_MULTIPLICITY |
|
|
938 | struct ev_loop *loop = &default_loop_struct; |
|
|
939 | #endif |
|
|
940 | |
|
|
941 | #if _WIN32 |
1858 | #ifdef _WIN32 |
942 | signal (signum, ev_sighandler); |
1859 | signal (signum, ev_sighandler); |
943 | #endif |
1860 | #endif |
944 | |
1861 | |
945 | signals [signum - 1].gotsig = 1; |
1862 | ev_feed_signal (signum); |
946 | evpipe_write (EV_A_ &gotsig); |
|
|
947 | } |
1863 | } |
948 | |
1864 | |
949 | void noinline |
1865 | void noinline |
950 | ev_feed_signal_event (EV_P_ int signum) |
1866 | ev_feed_signal_event (EV_P_ int signum) |
951 | { |
1867 | { |
952 | WL w; |
1868 | WL w; |
953 | |
1869 | |
|
|
1870 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1871 | return; |
|
|
1872 | |
|
|
1873 | --signum; |
|
|
1874 | |
954 | #if EV_MULTIPLICITY |
1875 | #if EV_MULTIPLICITY |
955 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1876 | /* it is permissible to try to feed a signal to the wrong loop */ |
956 | #endif |
1877 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
957 | |
1878 | |
958 | --signum; |
1879 | if (expect_false (signals [signum].loop != EV_A)) |
959 | |
|
|
960 | if (signum < 0 || signum >= signalmax) |
|
|
961 | return; |
1880 | return; |
|
|
1881 | #endif |
962 | |
1882 | |
963 | signals [signum].gotsig = 0; |
1883 | signals [signum].pending = 0; |
964 | |
1884 | |
965 | for (w = signals [signum].head; w; w = w->next) |
1885 | for (w = signals [signum].head; w; w = w->next) |
966 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1886 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
967 | } |
1887 | } |
968 | |
1888 | |
|
|
1889 | #if EV_USE_SIGNALFD |
|
|
1890 | static void |
|
|
1891 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1892 | { |
|
|
1893 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1894 | |
|
|
1895 | for (;;) |
|
|
1896 | { |
|
|
1897 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1898 | |
|
|
1899 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1900 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1901 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1902 | |
|
|
1903 | if (res < (ssize_t)sizeof (si)) |
|
|
1904 | break; |
|
|
1905 | } |
|
|
1906 | } |
|
|
1907 | #endif |
|
|
1908 | |
|
|
1909 | #endif |
|
|
1910 | |
969 | /*****************************************************************************/ |
1911 | /*****************************************************************************/ |
970 | |
1912 | |
|
|
1913 | #if EV_CHILD_ENABLE |
971 | static WL childs [EV_PID_HASHSIZE]; |
1914 | static WL childs [EV_PID_HASHSIZE]; |
972 | |
|
|
973 | #ifndef _WIN32 |
|
|
974 | |
1915 | |
975 | static ev_signal childev; |
1916 | static ev_signal childev; |
976 | |
1917 | |
977 | #ifndef WIFCONTINUED |
1918 | #ifndef WIFCONTINUED |
978 | # define WIFCONTINUED(status) 0 |
1919 | # define WIFCONTINUED(status) 0 |
979 | #endif |
1920 | #endif |
980 | |
1921 | |
981 | void inline_speed |
1922 | /* handle a single child status event */ |
|
|
1923 | inline_speed void |
982 | child_reap (EV_P_ int chain, int pid, int status) |
1924 | child_reap (EV_P_ int chain, int pid, int status) |
983 | { |
1925 | { |
984 | ev_child *w; |
1926 | ev_child *w; |
985 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1927 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
986 | |
1928 | |
987 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1929 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
988 | { |
1930 | { |
989 | if ((w->pid == pid || !w->pid) |
1931 | if ((w->pid == pid || !w->pid) |
990 | && (!traced || (w->flags & 1))) |
1932 | && (!traced || (w->flags & 1))) |
991 | { |
1933 | { |
992 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1934 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
999 | |
1941 | |
1000 | #ifndef WCONTINUED |
1942 | #ifndef WCONTINUED |
1001 | # define WCONTINUED 0 |
1943 | # define WCONTINUED 0 |
1002 | #endif |
1944 | #endif |
1003 | |
1945 | |
|
|
1946 | /* called on sigchld etc., calls waitpid */ |
1004 | static void |
1947 | static void |
1005 | childcb (EV_P_ ev_signal *sw, int revents) |
1948 | childcb (EV_P_ ev_signal *sw, int revents) |
1006 | { |
1949 | { |
1007 | int pid, status; |
1950 | int pid, status; |
1008 | |
1951 | |
… | |
… | |
1016 | /* make sure we are called again until all children have been reaped */ |
1959 | /* 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 */ |
1960 | /* 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); |
1961 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1019 | |
1962 | |
1020 | child_reap (EV_A_ pid, pid, status); |
1963 | child_reap (EV_A_ pid, pid, status); |
1021 | if (EV_PID_HASHSIZE > 1) |
1964 | if ((EV_PID_HASHSIZE) > 1) |
1022 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1965 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1023 | } |
1966 | } |
1024 | |
1967 | |
1025 | #endif |
1968 | #endif |
1026 | |
1969 | |
1027 | /*****************************************************************************/ |
1970 | /*****************************************************************************/ |
1028 | |
1971 | |
|
|
1972 | #if EV_USE_IOCP |
|
|
1973 | # include "ev_iocp.c" |
|
|
1974 | #endif |
1029 | #if EV_USE_PORT |
1975 | #if EV_USE_PORT |
1030 | # include "ev_port.c" |
1976 | # include "ev_port.c" |
1031 | #endif |
1977 | #endif |
1032 | #if EV_USE_KQUEUE |
1978 | #if EV_USE_KQUEUE |
1033 | # include "ev_kqueue.c" |
1979 | # include "ev_kqueue.c" |
… | |
… | |
1040 | #endif |
1986 | #endif |
1041 | #if EV_USE_SELECT |
1987 | #if EV_USE_SELECT |
1042 | # include "ev_select.c" |
1988 | # include "ev_select.c" |
1043 | #endif |
1989 | #endif |
1044 | |
1990 | |
1045 | int |
1991 | int ecb_cold |
1046 | ev_version_major (void) |
1992 | ev_version_major (void) |
1047 | { |
1993 | { |
1048 | return EV_VERSION_MAJOR; |
1994 | return EV_VERSION_MAJOR; |
1049 | } |
1995 | } |
1050 | |
1996 | |
1051 | int |
1997 | int ecb_cold |
1052 | ev_version_minor (void) |
1998 | ev_version_minor (void) |
1053 | { |
1999 | { |
1054 | return EV_VERSION_MINOR; |
2000 | return EV_VERSION_MINOR; |
1055 | } |
2001 | } |
1056 | |
2002 | |
1057 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2003 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1058 | int inline_size |
2004 | int inline_size ecb_cold |
1059 | enable_secure (void) |
2005 | enable_secure (void) |
1060 | { |
2006 | { |
1061 | #ifdef _WIN32 |
2007 | #ifdef _WIN32 |
1062 | return 0; |
2008 | return 0; |
1063 | #else |
2009 | #else |
1064 | return getuid () != geteuid () |
2010 | return getuid () != geteuid () |
1065 | || getgid () != getegid (); |
2011 | || getgid () != getegid (); |
1066 | #endif |
2012 | #endif |
1067 | } |
2013 | } |
1068 | |
2014 | |
1069 | unsigned int |
2015 | unsigned int ecb_cold |
1070 | ev_supported_backends (void) |
2016 | ev_supported_backends (void) |
1071 | { |
2017 | { |
1072 | unsigned int flags = 0; |
2018 | unsigned int flags = 0; |
1073 | |
2019 | |
1074 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2020 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1078 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2024 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1079 | |
2025 | |
1080 | return flags; |
2026 | return flags; |
1081 | } |
2027 | } |
1082 | |
2028 | |
1083 | unsigned int |
2029 | unsigned int ecb_cold |
1084 | ev_recommended_backends (void) |
2030 | ev_recommended_backends (void) |
1085 | { |
2031 | { |
1086 | unsigned int flags = ev_supported_backends (); |
2032 | unsigned int flags = ev_supported_backends (); |
1087 | |
2033 | |
1088 | #ifndef __NetBSD__ |
2034 | #ifndef __NetBSD__ |
1089 | /* kqueue is borked on everything but netbsd apparently */ |
2035 | /* kqueue is borked on everything but netbsd apparently */ |
1090 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2036 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1091 | flags &= ~EVBACKEND_KQUEUE; |
2037 | flags &= ~EVBACKEND_KQUEUE; |
1092 | #endif |
2038 | #endif |
1093 | #ifdef __APPLE__ |
2039 | #ifdef __APPLE__ |
1094 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2040 | /* only select works correctly on that "unix-certified" platform */ |
1095 | flags &= ~EVBACKEND_POLL; |
2041 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2042 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2043 | #endif |
|
|
2044 | #ifdef __FreeBSD__ |
|
|
2045 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1096 | #endif |
2046 | #endif |
1097 | |
2047 | |
1098 | return flags; |
2048 | return flags; |
1099 | } |
2049 | } |
1100 | |
2050 | |
1101 | unsigned int |
2051 | unsigned int ecb_cold |
1102 | ev_embeddable_backends (void) |
2052 | ev_embeddable_backends (void) |
1103 | { |
2053 | { |
1104 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2054 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1105 | |
2055 | |
1106 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2056 | /* 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 */ |
2057 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1108 | flags &= ~EVBACKEND_EPOLL; |
2058 | flags &= ~EVBACKEND_EPOLL; |
1109 | |
2059 | |
1110 | return flags; |
2060 | return flags; |
1111 | } |
2061 | } |
1112 | |
2062 | |
1113 | unsigned int |
2063 | unsigned int |
1114 | ev_backend (EV_P) |
2064 | ev_backend (EV_P) |
1115 | { |
2065 | { |
1116 | return backend; |
2066 | return backend; |
1117 | } |
2067 | } |
1118 | |
2068 | |
|
|
2069 | #if EV_FEATURE_API |
1119 | unsigned int |
2070 | unsigned int |
1120 | ev_loop_count (EV_P) |
2071 | ev_iteration (EV_P) |
1121 | { |
2072 | { |
1122 | return loop_count; |
2073 | return loop_count; |
|
|
2074 | } |
|
|
2075 | |
|
|
2076 | unsigned int |
|
|
2077 | ev_depth (EV_P) |
|
|
2078 | { |
|
|
2079 | return loop_depth; |
1123 | } |
2080 | } |
1124 | |
2081 | |
1125 | void |
2082 | void |
1126 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2083 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1127 | { |
2084 | { |
… | |
… | |
1132 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2089 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1133 | { |
2090 | { |
1134 | timeout_blocktime = interval; |
2091 | timeout_blocktime = interval; |
1135 | } |
2092 | } |
1136 | |
2093 | |
|
|
2094 | void |
|
|
2095 | ev_set_userdata (EV_P_ void *data) |
|
|
2096 | { |
|
|
2097 | userdata = data; |
|
|
2098 | } |
|
|
2099 | |
|
|
2100 | void * |
|
|
2101 | ev_userdata (EV_P) |
|
|
2102 | { |
|
|
2103 | return userdata; |
|
|
2104 | } |
|
|
2105 | |
|
|
2106 | void |
|
|
2107 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
2108 | { |
|
|
2109 | invoke_cb = invoke_pending_cb; |
|
|
2110 | } |
|
|
2111 | |
|
|
2112 | void |
|
|
2113 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
2114 | { |
|
|
2115 | release_cb = release; |
|
|
2116 | acquire_cb = acquire; |
|
|
2117 | } |
|
|
2118 | #endif |
|
|
2119 | |
|
|
2120 | /* initialise a loop structure, must be zero-initialised */ |
1137 | static void noinline |
2121 | static void noinline ecb_cold |
1138 | loop_init (EV_P_ unsigned int flags) |
2122 | loop_init (EV_P_ unsigned int flags) |
1139 | { |
2123 | { |
1140 | if (!backend) |
2124 | if (!backend) |
1141 | { |
2125 | { |
|
|
2126 | origflags = flags; |
|
|
2127 | |
|
|
2128 | #if EV_USE_REALTIME |
|
|
2129 | if (!have_realtime) |
|
|
2130 | { |
|
|
2131 | struct timespec ts; |
|
|
2132 | |
|
|
2133 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2134 | have_realtime = 1; |
|
|
2135 | } |
|
|
2136 | #endif |
|
|
2137 | |
1142 | #if EV_USE_MONOTONIC |
2138 | #if EV_USE_MONOTONIC |
|
|
2139 | if (!have_monotonic) |
1143 | { |
2140 | { |
1144 | struct timespec ts; |
2141 | struct timespec ts; |
|
|
2142 | |
1145 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2143 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1146 | have_monotonic = 1; |
2144 | have_monotonic = 1; |
1147 | } |
2145 | } |
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 |
2146 | #endif |
1163 | |
2147 | |
1164 | /* pid check not overridable via env */ |
2148 | /* pid check not overridable via env */ |
1165 | #ifndef _WIN32 |
2149 | #ifndef _WIN32 |
1166 | if (flags & EVFLAG_FORKCHECK) |
2150 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1170 | if (!(flags & EVFLAG_NOENV) |
2154 | if (!(flags & EVFLAG_NOENV) |
1171 | && !enable_secure () |
2155 | && !enable_secure () |
1172 | && getenv ("LIBEV_FLAGS")) |
2156 | && getenv ("LIBEV_FLAGS")) |
1173 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2157 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1174 | |
2158 | |
1175 | if (!(flags & 0x0000ffffUL)) |
2159 | ev_rt_now = ev_time (); |
|
|
2160 | mn_now = get_clock (); |
|
|
2161 | now_floor = mn_now; |
|
|
2162 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2163 | #if EV_FEATURE_API |
|
|
2164 | invoke_cb = ev_invoke_pending; |
|
|
2165 | #endif |
|
|
2166 | |
|
|
2167 | io_blocktime = 0.; |
|
|
2168 | timeout_blocktime = 0.; |
|
|
2169 | backend = 0; |
|
|
2170 | backend_fd = -1; |
|
|
2171 | sig_pending = 0; |
|
|
2172 | #if EV_ASYNC_ENABLE |
|
|
2173 | async_pending = 0; |
|
|
2174 | #endif |
|
|
2175 | pipe_write_skipped = 0; |
|
|
2176 | pipe_write_wanted = 0; |
|
|
2177 | #if EV_USE_INOTIFY |
|
|
2178 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2179 | #endif |
|
|
2180 | #if EV_USE_SIGNALFD |
|
|
2181 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2182 | #endif |
|
|
2183 | |
|
|
2184 | if (!(flags & EVBACKEND_MASK)) |
1176 | flags |= ev_recommended_backends (); |
2185 | flags |= ev_recommended_backends (); |
1177 | |
2186 | |
|
|
2187 | #if EV_USE_IOCP |
|
|
2188 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2189 | #endif |
1178 | #if EV_USE_PORT |
2190 | #if EV_USE_PORT |
1179 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2191 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1180 | #endif |
2192 | #endif |
1181 | #if EV_USE_KQUEUE |
2193 | #if EV_USE_KQUEUE |
1182 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2194 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1189 | #endif |
2201 | #endif |
1190 | #if EV_USE_SELECT |
2202 | #if EV_USE_SELECT |
1191 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2203 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1192 | #endif |
2204 | #endif |
1193 | |
2205 | |
|
|
2206 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2207 | |
|
|
2208 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1194 | ev_init (&pipeev, pipecb); |
2209 | ev_init (&pipe_w, pipecb); |
1195 | ev_set_priority (&pipeev, EV_MAXPRI); |
2210 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2211 | #endif |
1196 | } |
2212 | } |
1197 | } |
2213 | } |
1198 | |
2214 | |
1199 | static void noinline |
2215 | /* free up a loop structure */ |
|
|
2216 | void ecb_cold |
1200 | loop_destroy (EV_P) |
2217 | ev_loop_destroy (EV_P) |
1201 | { |
2218 | { |
1202 | int i; |
2219 | int i; |
1203 | |
2220 | |
|
|
2221 | #if EV_MULTIPLICITY |
|
|
2222 | /* mimic free (0) */ |
|
|
2223 | if (!EV_A) |
|
|
2224 | return; |
|
|
2225 | #endif |
|
|
2226 | |
|
|
2227 | #if EV_CLEANUP_ENABLE |
|
|
2228 | /* queue cleanup watchers (and execute them) */ |
|
|
2229 | if (expect_false (cleanupcnt)) |
|
|
2230 | { |
|
|
2231 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2232 | EV_INVOKE_PENDING; |
|
|
2233 | } |
|
|
2234 | #endif |
|
|
2235 | |
|
|
2236 | #if EV_CHILD_ENABLE |
|
|
2237 | if (ev_is_active (&childev)) |
|
|
2238 | { |
|
|
2239 | ev_ref (EV_A); /* child watcher */ |
|
|
2240 | ev_signal_stop (EV_A_ &childev); |
|
|
2241 | } |
|
|
2242 | #endif |
|
|
2243 | |
1204 | if (ev_is_active (&pipeev)) |
2244 | if (ev_is_active (&pipe_w)) |
1205 | { |
2245 | { |
1206 | ev_ref (EV_A); /* signal watcher */ |
2246 | /*ev_ref (EV_A);*/ |
1207 | ev_io_stop (EV_A_ &pipeev); |
2247 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1208 | |
2248 | |
1209 | #if EV_USE_EVENTFD |
2249 | #if EV_USE_EVENTFD |
1210 | if (evfd >= 0) |
2250 | if (evfd >= 0) |
1211 | close (evfd); |
2251 | close (evfd); |
1212 | #endif |
2252 | #endif |
1213 | |
2253 | |
1214 | if (evpipe [0] >= 0) |
2254 | if (evpipe [0] >= 0) |
1215 | { |
2255 | { |
1216 | close (evpipe [0]); |
2256 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1217 | close (evpipe [1]); |
2257 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1218 | } |
2258 | } |
1219 | } |
2259 | } |
|
|
2260 | |
|
|
2261 | #if EV_USE_SIGNALFD |
|
|
2262 | if (ev_is_active (&sigfd_w)) |
|
|
2263 | close (sigfd); |
|
|
2264 | #endif |
1220 | |
2265 | |
1221 | #if EV_USE_INOTIFY |
2266 | #if EV_USE_INOTIFY |
1222 | if (fs_fd >= 0) |
2267 | if (fs_fd >= 0) |
1223 | close (fs_fd); |
2268 | close (fs_fd); |
1224 | #endif |
2269 | #endif |
1225 | |
2270 | |
1226 | if (backend_fd >= 0) |
2271 | if (backend_fd >= 0) |
1227 | close (backend_fd); |
2272 | close (backend_fd); |
1228 | |
2273 | |
|
|
2274 | #if EV_USE_IOCP |
|
|
2275 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2276 | #endif |
1229 | #if EV_USE_PORT |
2277 | #if EV_USE_PORT |
1230 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2278 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1231 | #endif |
2279 | #endif |
1232 | #if EV_USE_KQUEUE |
2280 | #if EV_USE_KQUEUE |
1233 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2281 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1248 | #if EV_IDLE_ENABLE |
2296 | #if EV_IDLE_ENABLE |
1249 | array_free (idle, [i]); |
2297 | array_free (idle, [i]); |
1250 | #endif |
2298 | #endif |
1251 | } |
2299 | } |
1252 | |
2300 | |
1253 | ev_free (anfds); anfdmax = 0; |
2301 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1254 | |
2302 | |
1255 | /* have to use the microsoft-never-gets-it-right macro */ |
2303 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2304 | array_free (rfeed, EMPTY); |
1256 | array_free (fdchange, EMPTY); |
2305 | array_free (fdchange, EMPTY); |
1257 | array_free (timer, EMPTY); |
2306 | array_free (timer, EMPTY); |
1258 | #if EV_PERIODIC_ENABLE |
2307 | #if EV_PERIODIC_ENABLE |
1259 | array_free (periodic, EMPTY); |
2308 | array_free (periodic, EMPTY); |
1260 | #endif |
2309 | #endif |
1261 | #if EV_FORK_ENABLE |
2310 | #if EV_FORK_ENABLE |
1262 | array_free (fork, EMPTY); |
2311 | array_free (fork, EMPTY); |
1263 | #endif |
2312 | #endif |
|
|
2313 | #if EV_CLEANUP_ENABLE |
|
|
2314 | array_free (cleanup, EMPTY); |
|
|
2315 | #endif |
1264 | array_free (prepare, EMPTY); |
2316 | array_free (prepare, EMPTY); |
1265 | array_free (check, EMPTY); |
2317 | array_free (check, EMPTY); |
1266 | #if EV_ASYNC_ENABLE |
2318 | #if EV_ASYNC_ENABLE |
1267 | array_free (async, EMPTY); |
2319 | array_free (async, EMPTY); |
1268 | #endif |
2320 | #endif |
1269 | |
2321 | |
1270 | backend = 0; |
2322 | backend = 0; |
1271 | } |
|
|
1272 | |
2323 | |
|
|
2324 | #if EV_MULTIPLICITY |
|
|
2325 | if (ev_is_default_loop (EV_A)) |
|
|
2326 | #endif |
|
|
2327 | ev_default_loop_ptr = 0; |
|
|
2328 | #if EV_MULTIPLICITY |
|
|
2329 | else |
|
|
2330 | ev_free (EV_A); |
|
|
2331 | #endif |
|
|
2332 | } |
|
|
2333 | |
|
|
2334 | #if EV_USE_INOTIFY |
1273 | void inline_size infy_fork (EV_P); |
2335 | inline_size void infy_fork (EV_P); |
|
|
2336 | #endif |
1274 | |
2337 | |
1275 | void inline_size |
2338 | inline_size void |
1276 | loop_fork (EV_P) |
2339 | loop_fork (EV_P) |
1277 | { |
2340 | { |
1278 | #if EV_USE_PORT |
2341 | #if EV_USE_PORT |
1279 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2342 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1280 | #endif |
2343 | #endif |
… | |
… | |
1286 | #endif |
2349 | #endif |
1287 | #if EV_USE_INOTIFY |
2350 | #if EV_USE_INOTIFY |
1288 | infy_fork (EV_A); |
2351 | infy_fork (EV_A); |
1289 | #endif |
2352 | #endif |
1290 | |
2353 | |
1291 | if (ev_is_active (&pipeev)) |
2354 | if (ev_is_active (&pipe_w)) |
1292 | { |
2355 | { |
1293 | /* this "locks" the handlers against writing to the pipe */ |
2356 | /* 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 | |
2357 | |
1300 | ev_ref (EV_A); |
2358 | ev_ref (EV_A); |
1301 | ev_io_stop (EV_A_ &pipeev); |
2359 | ev_io_stop (EV_A_ &pipe_w); |
1302 | |
2360 | |
1303 | #if EV_USE_EVENTFD |
2361 | #if EV_USE_EVENTFD |
1304 | if (evfd >= 0) |
2362 | if (evfd >= 0) |
1305 | close (evfd); |
2363 | close (evfd); |
1306 | #endif |
2364 | #endif |
1307 | |
2365 | |
1308 | if (evpipe [0] >= 0) |
2366 | if (evpipe [0] >= 0) |
1309 | { |
2367 | { |
1310 | close (evpipe [0]); |
2368 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1311 | close (evpipe [1]); |
2369 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1312 | } |
2370 | } |
1313 | |
2371 | |
|
|
2372 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1314 | evpipe_init (EV_A); |
2373 | evpipe_init (EV_A); |
1315 | /* now iterate over everything, in case we missed something */ |
2374 | /* now iterate over everything, in case we missed something */ |
1316 | pipecb (EV_A_ &pipeev, EV_READ); |
2375 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2376 | #endif |
1317 | } |
2377 | } |
1318 | |
2378 | |
1319 | postfork = 0; |
2379 | postfork = 0; |
1320 | } |
2380 | } |
1321 | |
2381 | |
1322 | #if EV_MULTIPLICITY |
2382 | #if EV_MULTIPLICITY |
|
|
2383 | |
1323 | struct ev_loop * |
2384 | struct ev_loop * ecb_cold |
1324 | ev_loop_new (unsigned int flags) |
2385 | ev_loop_new (unsigned int flags) |
1325 | { |
2386 | { |
1326 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2387 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1327 | |
2388 | |
1328 | memset (loop, 0, sizeof (struct ev_loop)); |
2389 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1329 | |
|
|
1330 | loop_init (EV_A_ flags); |
2390 | loop_init (EV_A_ flags); |
1331 | |
2391 | |
1332 | if (ev_backend (EV_A)) |
2392 | if (ev_backend (EV_A)) |
1333 | return loop; |
2393 | return EV_A; |
1334 | |
2394 | |
|
|
2395 | ev_free (EV_A); |
1335 | return 0; |
2396 | return 0; |
1336 | } |
2397 | } |
1337 | |
2398 | |
1338 | void |
2399 | #endif /* multiplicity */ |
1339 | ev_loop_destroy (EV_P) |
|
|
1340 | { |
|
|
1341 | loop_destroy (EV_A); |
|
|
1342 | ev_free (loop); |
|
|
1343 | } |
|
|
1344 | |
2400 | |
1345 | void |
2401 | #if EV_VERIFY |
1346 | ev_loop_fork (EV_P) |
2402 | static void noinline ecb_cold |
|
|
2403 | verify_watcher (EV_P_ W w) |
1347 | { |
2404 | { |
1348 | postfork = 1; /* must be in line with ev_default_fork */ |
2405 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1349 | } |
|
|
1350 | |
2406 | |
|
|
2407 | if (w->pending) |
|
|
2408 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2409 | } |
|
|
2410 | |
|
|
2411 | static void noinline ecb_cold |
|
|
2412 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2413 | { |
|
|
2414 | int i; |
|
|
2415 | |
|
|
2416 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2417 | { |
|
|
2418 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2419 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2420 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2421 | |
|
|
2422 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2423 | } |
|
|
2424 | } |
|
|
2425 | |
|
|
2426 | static void noinline ecb_cold |
|
|
2427 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2428 | { |
|
|
2429 | while (cnt--) |
|
|
2430 | { |
|
|
2431 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2432 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2433 | } |
|
|
2434 | } |
|
|
2435 | #endif |
|
|
2436 | |
|
|
2437 | #if EV_FEATURE_API |
|
|
2438 | void ecb_cold |
|
|
2439 | ev_verify (EV_P) |
|
|
2440 | { |
|
|
2441 | #if EV_VERIFY |
|
|
2442 | int i; |
|
|
2443 | WL w; |
|
|
2444 | |
|
|
2445 | assert (activecnt >= -1); |
|
|
2446 | |
|
|
2447 | assert (fdchangemax >= fdchangecnt); |
|
|
2448 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2449 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2450 | |
|
|
2451 | assert (anfdmax >= 0); |
|
|
2452 | for (i = 0; i < anfdmax; ++i) |
|
|
2453 | for (w = anfds [i].head; w; w = w->next) |
|
|
2454 | { |
|
|
2455 | verify_watcher (EV_A_ (W)w); |
|
|
2456 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2457 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2458 | } |
|
|
2459 | |
|
|
2460 | assert (timermax >= timercnt); |
|
|
2461 | verify_heap (EV_A_ timers, timercnt); |
|
|
2462 | |
|
|
2463 | #if EV_PERIODIC_ENABLE |
|
|
2464 | assert (periodicmax >= periodiccnt); |
|
|
2465 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2466 | #endif |
|
|
2467 | |
|
|
2468 | for (i = NUMPRI; i--; ) |
|
|
2469 | { |
|
|
2470 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2471 | #if EV_IDLE_ENABLE |
|
|
2472 | assert (idleall >= 0); |
|
|
2473 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2474 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2475 | #endif |
|
|
2476 | } |
|
|
2477 | |
|
|
2478 | #if EV_FORK_ENABLE |
|
|
2479 | assert (forkmax >= forkcnt); |
|
|
2480 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2481 | #endif |
|
|
2482 | |
|
|
2483 | #if EV_CLEANUP_ENABLE |
|
|
2484 | assert (cleanupmax >= cleanupcnt); |
|
|
2485 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2486 | #endif |
|
|
2487 | |
|
|
2488 | #if EV_ASYNC_ENABLE |
|
|
2489 | assert (asyncmax >= asynccnt); |
|
|
2490 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2491 | #endif |
|
|
2492 | |
|
|
2493 | #if EV_PREPARE_ENABLE |
|
|
2494 | assert (preparemax >= preparecnt); |
|
|
2495 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2496 | #endif |
|
|
2497 | |
|
|
2498 | #if EV_CHECK_ENABLE |
|
|
2499 | assert (checkmax >= checkcnt); |
|
|
2500 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2501 | #endif |
|
|
2502 | |
|
|
2503 | # if 0 |
|
|
2504 | #if EV_CHILD_ENABLE |
|
|
2505 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2506 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2507 | #endif |
|
|
2508 | # endif |
|
|
2509 | #endif |
|
|
2510 | } |
1351 | #endif |
2511 | #endif |
1352 | |
2512 | |
1353 | #if EV_MULTIPLICITY |
2513 | #if EV_MULTIPLICITY |
1354 | struct ev_loop * |
2514 | struct ev_loop * ecb_cold |
1355 | ev_default_loop_init (unsigned int flags) |
|
|
1356 | #else |
2515 | #else |
1357 | int |
2516 | int |
|
|
2517 | #endif |
1358 | ev_default_loop (unsigned int flags) |
2518 | ev_default_loop (unsigned int flags) |
1359 | #endif |
|
|
1360 | { |
2519 | { |
1361 | if (!ev_default_loop_ptr) |
2520 | if (!ev_default_loop_ptr) |
1362 | { |
2521 | { |
1363 | #if EV_MULTIPLICITY |
2522 | #if EV_MULTIPLICITY |
1364 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2523 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1365 | #else |
2524 | #else |
1366 | ev_default_loop_ptr = 1; |
2525 | ev_default_loop_ptr = 1; |
1367 | #endif |
2526 | #endif |
1368 | |
2527 | |
1369 | loop_init (EV_A_ flags); |
2528 | loop_init (EV_A_ flags); |
1370 | |
2529 | |
1371 | if (ev_backend (EV_A)) |
2530 | if (ev_backend (EV_A)) |
1372 | { |
2531 | { |
1373 | #ifndef _WIN32 |
2532 | #if EV_CHILD_ENABLE |
1374 | ev_signal_init (&childev, childcb, SIGCHLD); |
2533 | ev_signal_init (&childev, childcb, SIGCHLD); |
1375 | ev_set_priority (&childev, EV_MAXPRI); |
2534 | ev_set_priority (&childev, EV_MAXPRI); |
1376 | ev_signal_start (EV_A_ &childev); |
2535 | ev_signal_start (EV_A_ &childev); |
1377 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2536 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1378 | #endif |
2537 | #endif |
… | |
… | |
1383 | |
2542 | |
1384 | return ev_default_loop_ptr; |
2543 | return ev_default_loop_ptr; |
1385 | } |
2544 | } |
1386 | |
2545 | |
1387 | void |
2546 | void |
1388 | ev_default_destroy (void) |
2547 | ev_loop_fork (EV_P) |
1389 | { |
2548 | { |
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 */ |
2549 | postfork = 1; /* must be in line with ev_default_fork */ |
1411 | } |
2550 | } |
1412 | |
2551 | |
1413 | /*****************************************************************************/ |
2552 | /*****************************************************************************/ |
1414 | |
2553 | |
1415 | void |
2554 | void |
1416 | ev_invoke (EV_P_ void *w, int revents) |
2555 | ev_invoke (EV_P_ void *w, int revents) |
1417 | { |
2556 | { |
1418 | EV_CB_INVOKE ((W)w, revents); |
2557 | EV_CB_INVOKE ((W)w, revents); |
1419 | } |
2558 | } |
1420 | |
2559 | |
1421 | void inline_speed |
2560 | unsigned int |
1422 | call_pending (EV_P) |
2561 | ev_pending_count (EV_P) |
|
|
2562 | { |
|
|
2563 | int pri; |
|
|
2564 | unsigned int count = 0; |
|
|
2565 | |
|
|
2566 | for (pri = NUMPRI; pri--; ) |
|
|
2567 | count += pendingcnt [pri]; |
|
|
2568 | |
|
|
2569 | return count; |
|
|
2570 | } |
|
|
2571 | |
|
|
2572 | void noinline |
|
|
2573 | ev_invoke_pending (EV_P) |
1423 | { |
2574 | { |
1424 | int pri; |
2575 | int pri; |
1425 | |
2576 | |
1426 | for (pri = NUMPRI; pri--; ) |
2577 | for (pri = NUMPRI; pri--; ) |
1427 | while (pendingcnt [pri]) |
2578 | while (pendingcnt [pri]) |
1428 | { |
2579 | { |
1429 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2580 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1430 | |
2581 | |
1431 | if (expect_true (p->w)) |
|
|
1432 | { |
|
|
1433 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1434 | |
|
|
1435 | p->w->pending = 0; |
2582 | p->w->pending = 0; |
1436 | EV_CB_INVOKE (p->w, p->events); |
2583 | EV_CB_INVOKE (p->w, p->events); |
1437 | } |
2584 | EV_FREQUENT_CHECK; |
1438 | } |
2585 | } |
1439 | } |
2586 | } |
1440 | |
2587 | |
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 |
2588 | #if EV_IDLE_ENABLE |
1522 | void inline_size |
2589 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2590 | /* only when higher priorities are idle" logic */ |
|
|
2591 | inline_size void |
1523 | idle_reify (EV_P) |
2592 | idle_reify (EV_P) |
1524 | { |
2593 | { |
1525 | if (expect_false (idleall)) |
2594 | if (expect_false (idleall)) |
1526 | { |
2595 | { |
1527 | int pri; |
2596 | int pri; |
… | |
… | |
1539 | } |
2608 | } |
1540 | } |
2609 | } |
1541 | } |
2610 | } |
1542 | #endif |
2611 | #endif |
1543 | |
2612 | |
1544 | void inline_speed |
2613 | /* make timers pending */ |
|
|
2614 | inline_size void |
|
|
2615 | timers_reify (EV_P) |
|
|
2616 | { |
|
|
2617 | EV_FREQUENT_CHECK; |
|
|
2618 | |
|
|
2619 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2620 | { |
|
|
2621 | do |
|
|
2622 | { |
|
|
2623 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2624 | |
|
|
2625 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2626 | |
|
|
2627 | /* first reschedule or stop timer */ |
|
|
2628 | if (w->repeat) |
|
|
2629 | { |
|
|
2630 | ev_at (w) += w->repeat; |
|
|
2631 | if (ev_at (w) < mn_now) |
|
|
2632 | ev_at (w) = mn_now; |
|
|
2633 | |
|
|
2634 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2635 | |
|
|
2636 | ANHE_at_cache (timers [HEAP0]); |
|
|
2637 | downheap (timers, timercnt, HEAP0); |
|
|
2638 | } |
|
|
2639 | else |
|
|
2640 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2641 | |
|
|
2642 | EV_FREQUENT_CHECK; |
|
|
2643 | feed_reverse (EV_A_ (W)w); |
|
|
2644 | } |
|
|
2645 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2646 | |
|
|
2647 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2648 | } |
|
|
2649 | } |
|
|
2650 | |
|
|
2651 | #if EV_PERIODIC_ENABLE |
|
|
2652 | |
|
|
2653 | static void noinline |
|
|
2654 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2655 | { |
|
|
2656 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2657 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2658 | |
|
|
2659 | /* the above almost always errs on the low side */ |
|
|
2660 | while (at <= ev_rt_now) |
|
|
2661 | { |
|
|
2662 | ev_tstamp nat = at + w->interval; |
|
|
2663 | |
|
|
2664 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2665 | if (expect_false (nat == at)) |
|
|
2666 | { |
|
|
2667 | at = ev_rt_now; |
|
|
2668 | break; |
|
|
2669 | } |
|
|
2670 | |
|
|
2671 | at = nat; |
|
|
2672 | } |
|
|
2673 | |
|
|
2674 | ev_at (w) = at; |
|
|
2675 | } |
|
|
2676 | |
|
|
2677 | /* make periodics pending */ |
|
|
2678 | inline_size void |
|
|
2679 | periodics_reify (EV_P) |
|
|
2680 | { |
|
|
2681 | EV_FREQUENT_CHECK; |
|
|
2682 | |
|
|
2683 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2684 | { |
|
|
2685 | int feed_count = 0; |
|
|
2686 | |
|
|
2687 | do |
|
|
2688 | { |
|
|
2689 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2690 | |
|
|
2691 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2692 | |
|
|
2693 | /* first reschedule or stop timer */ |
|
|
2694 | if (w->reschedule_cb) |
|
|
2695 | { |
|
|
2696 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2697 | |
|
|
2698 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2699 | |
|
|
2700 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2701 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2702 | } |
|
|
2703 | else if (w->interval) |
|
|
2704 | { |
|
|
2705 | periodic_recalc (EV_A_ w); |
|
|
2706 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2707 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2708 | } |
|
|
2709 | else |
|
|
2710 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2711 | |
|
|
2712 | EV_FREQUENT_CHECK; |
|
|
2713 | feed_reverse (EV_A_ (W)w); |
|
|
2714 | } |
|
|
2715 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2716 | |
|
|
2717 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2718 | } |
|
|
2719 | } |
|
|
2720 | |
|
|
2721 | /* simply recalculate all periodics */ |
|
|
2722 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2723 | static void noinline ecb_cold |
|
|
2724 | periodics_reschedule (EV_P) |
|
|
2725 | { |
|
|
2726 | int i; |
|
|
2727 | |
|
|
2728 | /* adjust periodics after time jump */ |
|
|
2729 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2730 | { |
|
|
2731 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2732 | |
|
|
2733 | if (w->reschedule_cb) |
|
|
2734 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2735 | else if (w->interval) |
|
|
2736 | periodic_recalc (EV_A_ w); |
|
|
2737 | |
|
|
2738 | ANHE_at_cache (periodics [i]); |
|
|
2739 | } |
|
|
2740 | |
|
|
2741 | reheap (periodics, periodiccnt); |
|
|
2742 | } |
|
|
2743 | #endif |
|
|
2744 | |
|
|
2745 | /* adjust all timers by a given offset */ |
|
|
2746 | static void noinline ecb_cold |
|
|
2747 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2748 | { |
|
|
2749 | int i; |
|
|
2750 | |
|
|
2751 | for (i = 0; i < timercnt; ++i) |
|
|
2752 | { |
|
|
2753 | ANHE *he = timers + i + HEAP0; |
|
|
2754 | ANHE_w (*he)->at += adjust; |
|
|
2755 | ANHE_at_cache (*he); |
|
|
2756 | } |
|
|
2757 | } |
|
|
2758 | |
|
|
2759 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2760 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2761 | inline_speed void |
1545 | time_update (EV_P_ ev_tstamp max_block) |
2762 | time_update (EV_P_ ev_tstamp max_block) |
1546 | { |
2763 | { |
1547 | int i; |
|
|
1548 | |
|
|
1549 | #if EV_USE_MONOTONIC |
2764 | #if EV_USE_MONOTONIC |
1550 | if (expect_true (have_monotonic)) |
2765 | if (expect_true (have_monotonic)) |
1551 | { |
2766 | { |
|
|
2767 | int i; |
1552 | ev_tstamp odiff = rtmn_diff; |
2768 | ev_tstamp odiff = rtmn_diff; |
1553 | |
2769 | |
1554 | mn_now = get_clock (); |
2770 | mn_now = get_clock (); |
1555 | |
2771 | |
1556 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2772 | /* 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 |
2788 | * doesn't hurt either as we only do this on time-jumps or |
1573 | * in the unlikely event of having been preempted here. |
2789 | * in the unlikely event of having been preempted here. |
1574 | */ |
2790 | */ |
1575 | for (i = 4; --i; ) |
2791 | for (i = 4; --i; ) |
1576 | { |
2792 | { |
|
|
2793 | ev_tstamp diff; |
1577 | rtmn_diff = ev_rt_now - mn_now; |
2794 | rtmn_diff = ev_rt_now - mn_now; |
1578 | |
2795 | |
1579 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2796 | diff = odiff - rtmn_diff; |
|
|
2797 | |
|
|
2798 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1580 | return; /* all is well */ |
2799 | return; /* all is well */ |
1581 | |
2800 | |
1582 | ev_rt_now = ev_time (); |
2801 | ev_rt_now = ev_time (); |
1583 | mn_now = get_clock (); |
2802 | mn_now = get_clock (); |
1584 | now_floor = mn_now; |
2803 | now_floor = mn_now; |
1585 | } |
2804 | } |
1586 | |
2805 | |
|
|
2806 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2807 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1587 | # if EV_PERIODIC_ENABLE |
2808 | # if EV_PERIODIC_ENABLE |
1588 | periodics_reschedule (EV_A); |
2809 | periodics_reschedule (EV_A); |
1589 | # endif |
2810 | # endif |
1590 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1591 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1592 | } |
2811 | } |
1593 | else |
2812 | else |
1594 | #endif |
2813 | #endif |
1595 | { |
2814 | { |
1596 | ev_rt_now = ev_time (); |
2815 | ev_rt_now = ev_time (); |
1597 | |
2816 | |
1598 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2817 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1599 | { |
2818 | { |
|
|
2819 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2820 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1600 | #if EV_PERIODIC_ENABLE |
2821 | #if EV_PERIODIC_ENABLE |
1601 | periodics_reschedule (EV_A); |
2822 | periodics_reschedule (EV_A); |
1602 | #endif |
2823 | #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 | } |
2824 | } |
1607 | |
2825 | |
1608 | mn_now = ev_rt_now; |
2826 | mn_now = ev_rt_now; |
1609 | } |
2827 | } |
1610 | } |
2828 | } |
1611 | |
2829 | |
1612 | void |
2830 | 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) |
2831 | ev_run (EV_P_ int flags) |
1628 | { |
2832 | { |
|
|
2833 | #if EV_FEATURE_API |
|
|
2834 | ++loop_depth; |
|
|
2835 | #endif |
|
|
2836 | |
|
|
2837 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2838 | |
1629 | loop_done = EVUNLOOP_CANCEL; |
2839 | loop_done = EVBREAK_CANCEL; |
1630 | |
2840 | |
1631 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2841 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1632 | |
2842 | |
1633 | do |
2843 | do |
1634 | { |
2844 | { |
|
|
2845 | #if EV_VERIFY >= 2 |
|
|
2846 | ev_verify (EV_A); |
|
|
2847 | #endif |
|
|
2848 | |
1635 | #ifndef _WIN32 |
2849 | #ifndef _WIN32 |
1636 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2850 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1637 | if (expect_false (getpid () != curpid)) |
2851 | if (expect_false (getpid () != curpid)) |
1638 | { |
2852 | { |
1639 | curpid = getpid (); |
2853 | curpid = getpid (); |
… | |
… | |
1645 | /* we might have forked, so queue fork handlers */ |
2859 | /* we might have forked, so queue fork handlers */ |
1646 | if (expect_false (postfork)) |
2860 | if (expect_false (postfork)) |
1647 | if (forkcnt) |
2861 | if (forkcnt) |
1648 | { |
2862 | { |
1649 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2863 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1650 | call_pending (EV_A); |
2864 | EV_INVOKE_PENDING; |
1651 | } |
2865 | } |
1652 | #endif |
2866 | #endif |
1653 | |
2867 | |
|
|
2868 | #if EV_PREPARE_ENABLE |
1654 | /* queue prepare watchers (and execute them) */ |
2869 | /* queue prepare watchers (and execute them) */ |
1655 | if (expect_false (preparecnt)) |
2870 | if (expect_false (preparecnt)) |
1656 | { |
2871 | { |
1657 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2872 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1658 | call_pending (EV_A); |
2873 | EV_INVOKE_PENDING; |
1659 | } |
2874 | } |
|
|
2875 | #endif |
1660 | |
2876 | |
1661 | if (expect_false (!activecnt)) |
2877 | if (expect_false (loop_done)) |
1662 | break; |
2878 | break; |
1663 | |
2879 | |
1664 | /* we might have forked, so reify kernel state if necessary */ |
2880 | /* we might have forked, so reify kernel state if necessary */ |
1665 | if (expect_false (postfork)) |
2881 | if (expect_false (postfork)) |
1666 | loop_fork (EV_A); |
2882 | loop_fork (EV_A); |
… | |
… | |
1671 | /* calculate blocking time */ |
2887 | /* calculate blocking time */ |
1672 | { |
2888 | { |
1673 | ev_tstamp waittime = 0.; |
2889 | ev_tstamp waittime = 0.; |
1674 | ev_tstamp sleeptime = 0.; |
2890 | ev_tstamp sleeptime = 0.; |
1675 | |
2891 | |
|
|
2892 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2893 | ev_tstamp prev_mn_now = mn_now; |
|
|
2894 | |
|
|
2895 | /* update time to cancel out callback processing overhead */ |
|
|
2896 | time_update (EV_A_ 1e100); |
|
|
2897 | |
|
|
2898 | /* from now on, we want a pipe-wake-up */ |
|
|
2899 | pipe_write_wanted = 1; |
|
|
2900 | |
|
|
2901 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2902 | |
1676 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2903 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1677 | { |
2904 | { |
1678 | /* update time to cancel out callback processing overhead */ |
|
|
1679 | time_update (EV_A_ 1e100); |
|
|
1680 | |
|
|
1681 | waittime = MAX_BLOCKTIME; |
2905 | waittime = MAX_BLOCKTIME; |
1682 | |
2906 | |
1683 | if (timercnt) |
2907 | if (timercnt) |
1684 | { |
2908 | { |
1685 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2909 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1686 | if (waittime > to) waittime = to; |
2910 | if (waittime > to) waittime = to; |
1687 | } |
2911 | } |
1688 | |
2912 | |
1689 | #if EV_PERIODIC_ENABLE |
2913 | #if EV_PERIODIC_ENABLE |
1690 | if (periodiccnt) |
2914 | if (periodiccnt) |
1691 | { |
2915 | { |
1692 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2916 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1693 | if (waittime > to) waittime = to; |
2917 | if (waittime > to) waittime = to; |
1694 | } |
2918 | } |
1695 | #endif |
2919 | #endif |
1696 | |
2920 | |
|
|
2921 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1697 | if (expect_false (waittime < timeout_blocktime)) |
2922 | if (expect_false (waittime < timeout_blocktime)) |
1698 | waittime = timeout_blocktime; |
2923 | waittime = timeout_blocktime; |
1699 | |
2924 | |
1700 | sleeptime = waittime - backend_fudge; |
2925 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
2926 | /* to pass a minimum nonzero value to the backend */ |
|
|
2927 | if (expect_false (waittime < backend_mintime)) |
|
|
2928 | waittime = backend_mintime; |
1701 | |
2929 | |
|
|
2930 | /* extra check because io_blocktime is commonly 0 */ |
1702 | if (expect_true (sleeptime > io_blocktime)) |
2931 | if (expect_false (io_blocktime)) |
1703 | sleeptime = io_blocktime; |
|
|
1704 | |
|
|
1705 | if (sleeptime) |
|
|
1706 | { |
2932 | { |
|
|
2933 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2934 | |
|
|
2935 | if (sleeptime > waittime - backend_mintime) |
|
|
2936 | sleeptime = waittime - backend_mintime; |
|
|
2937 | |
|
|
2938 | if (expect_true (sleeptime > 0.)) |
|
|
2939 | { |
1707 | ev_sleep (sleeptime); |
2940 | ev_sleep (sleeptime); |
1708 | waittime -= sleeptime; |
2941 | waittime -= sleeptime; |
|
|
2942 | } |
1709 | } |
2943 | } |
1710 | } |
2944 | } |
1711 | |
2945 | |
|
|
2946 | #if EV_FEATURE_API |
1712 | ++loop_count; |
2947 | ++loop_count; |
|
|
2948 | #endif |
|
|
2949 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1713 | backend_poll (EV_A_ waittime); |
2950 | backend_poll (EV_A_ waittime); |
|
|
2951 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2952 | |
|
|
2953 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
|
|
2954 | |
|
|
2955 | if (pipe_write_skipped) |
|
|
2956 | { |
|
|
2957 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
2958 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
2959 | } |
|
|
2960 | |
1714 | |
2961 | |
1715 | /* update ev_rt_now, do magic */ |
2962 | /* update ev_rt_now, do magic */ |
1716 | time_update (EV_A_ waittime + sleeptime); |
2963 | time_update (EV_A_ waittime + sleeptime); |
1717 | } |
2964 | } |
1718 | |
2965 | |
… | |
… | |
1725 | #if EV_IDLE_ENABLE |
2972 | #if EV_IDLE_ENABLE |
1726 | /* queue idle watchers unless other events are pending */ |
2973 | /* queue idle watchers unless other events are pending */ |
1727 | idle_reify (EV_A); |
2974 | idle_reify (EV_A); |
1728 | #endif |
2975 | #endif |
1729 | |
2976 | |
|
|
2977 | #if EV_CHECK_ENABLE |
1730 | /* queue check watchers, to be executed first */ |
2978 | /* queue check watchers, to be executed first */ |
1731 | if (expect_false (checkcnt)) |
2979 | if (expect_false (checkcnt)) |
1732 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2980 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2981 | #endif |
1733 | |
2982 | |
1734 | call_pending (EV_A); |
2983 | EV_INVOKE_PENDING; |
1735 | } |
2984 | } |
1736 | while (expect_true ( |
2985 | while (expect_true ( |
1737 | activecnt |
2986 | activecnt |
1738 | && !loop_done |
2987 | && !loop_done |
1739 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2988 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
1740 | )); |
2989 | )); |
1741 | |
2990 | |
1742 | if (loop_done == EVUNLOOP_ONE) |
2991 | if (loop_done == EVBREAK_ONE) |
1743 | loop_done = EVUNLOOP_CANCEL; |
2992 | loop_done = EVBREAK_CANCEL; |
|
|
2993 | |
|
|
2994 | #if EV_FEATURE_API |
|
|
2995 | --loop_depth; |
|
|
2996 | #endif |
1744 | } |
2997 | } |
1745 | |
2998 | |
1746 | void |
2999 | void |
1747 | ev_unloop (EV_P_ int how) |
3000 | ev_break (EV_P_ int how) |
1748 | { |
3001 | { |
1749 | loop_done = how; |
3002 | loop_done = how; |
1750 | } |
3003 | } |
1751 | |
3004 | |
|
|
3005 | void |
|
|
3006 | ev_ref (EV_P) |
|
|
3007 | { |
|
|
3008 | ++activecnt; |
|
|
3009 | } |
|
|
3010 | |
|
|
3011 | void |
|
|
3012 | ev_unref (EV_P) |
|
|
3013 | { |
|
|
3014 | --activecnt; |
|
|
3015 | } |
|
|
3016 | |
|
|
3017 | void |
|
|
3018 | ev_now_update (EV_P) |
|
|
3019 | { |
|
|
3020 | time_update (EV_A_ 1e100); |
|
|
3021 | } |
|
|
3022 | |
|
|
3023 | void |
|
|
3024 | ev_suspend (EV_P) |
|
|
3025 | { |
|
|
3026 | ev_now_update (EV_A); |
|
|
3027 | } |
|
|
3028 | |
|
|
3029 | void |
|
|
3030 | ev_resume (EV_P) |
|
|
3031 | { |
|
|
3032 | ev_tstamp mn_prev = mn_now; |
|
|
3033 | |
|
|
3034 | ev_now_update (EV_A); |
|
|
3035 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3036 | #if EV_PERIODIC_ENABLE |
|
|
3037 | /* TODO: really do this? */ |
|
|
3038 | periodics_reschedule (EV_A); |
|
|
3039 | #endif |
|
|
3040 | } |
|
|
3041 | |
1752 | /*****************************************************************************/ |
3042 | /*****************************************************************************/ |
|
|
3043 | /* singly-linked list management, used when the expected list length is short */ |
1753 | |
3044 | |
1754 | void inline_size |
3045 | inline_size void |
1755 | wlist_add (WL *head, WL elem) |
3046 | wlist_add (WL *head, WL elem) |
1756 | { |
3047 | { |
1757 | elem->next = *head; |
3048 | elem->next = *head; |
1758 | *head = elem; |
3049 | *head = elem; |
1759 | } |
3050 | } |
1760 | |
3051 | |
1761 | void inline_size |
3052 | inline_size void |
1762 | wlist_del (WL *head, WL elem) |
3053 | wlist_del (WL *head, WL elem) |
1763 | { |
3054 | { |
1764 | while (*head) |
3055 | while (*head) |
1765 | { |
3056 | { |
1766 | if (*head == elem) |
3057 | if (expect_true (*head == elem)) |
1767 | { |
3058 | { |
1768 | *head = elem->next; |
3059 | *head = elem->next; |
1769 | return; |
3060 | break; |
1770 | } |
3061 | } |
1771 | |
3062 | |
1772 | head = &(*head)->next; |
3063 | head = &(*head)->next; |
1773 | } |
3064 | } |
1774 | } |
3065 | } |
1775 | |
3066 | |
1776 | void inline_speed |
3067 | /* internal, faster, version of ev_clear_pending */ |
|
|
3068 | inline_speed void |
1777 | clear_pending (EV_P_ W w) |
3069 | clear_pending (EV_P_ W w) |
1778 | { |
3070 | { |
1779 | if (w->pending) |
3071 | if (w->pending) |
1780 | { |
3072 | { |
1781 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3073 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1782 | w->pending = 0; |
3074 | w->pending = 0; |
1783 | } |
3075 | } |
1784 | } |
3076 | } |
1785 | |
3077 | |
1786 | int |
3078 | int |
… | |
… | |
1790 | int pending = w_->pending; |
3082 | int pending = w_->pending; |
1791 | |
3083 | |
1792 | if (expect_true (pending)) |
3084 | if (expect_true (pending)) |
1793 | { |
3085 | { |
1794 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3086 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3087 | p->w = (W)&pending_w; |
1795 | w_->pending = 0; |
3088 | w_->pending = 0; |
1796 | p->w = 0; |
|
|
1797 | return p->events; |
3089 | return p->events; |
1798 | } |
3090 | } |
1799 | else |
3091 | else |
1800 | return 0; |
3092 | return 0; |
1801 | } |
3093 | } |
1802 | |
3094 | |
1803 | void inline_size |
3095 | inline_size void |
1804 | pri_adjust (EV_P_ W w) |
3096 | pri_adjust (EV_P_ W w) |
1805 | { |
3097 | { |
1806 | int pri = w->priority; |
3098 | int pri = ev_priority (w); |
1807 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3099 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1808 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3100 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1809 | w->priority = pri; |
3101 | ev_set_priority (w, pri); |
1810 | } |
3102 | } |
1811 | |
3103 | |
1812 | void inline_speed |
3104 | inline_speed void |
1813 | ev_start (EV_P_ W w, int active) |
3105 | ev_start (EV_P_ W w, int active) |
1814 | { |
3106 | { |
1815 | pri_adjust (EV_A_ w); |
3107 | pri_adjust (EV_A_ w); |
1816 | w->active = active; |
3108 | w->active = active; |
1817 | ev_ref (EV_A); |
3109 | ev_ref (EV_A); |
1818 | } |
3110 | } |
1819 | |
3111 | |
1820 | void inline_size |
3112 | inline_size void |
1821 | ev_stop (EV_P_ W w) |
3113 | ev_stop (EV_P_ W w) |
1822 | { |
3114 | { |
1823 | ev_unref (EV_A); |
3115 | ev_unref (EV_A); |
1824 | w->active = 0; |
3116 | w->active = 0; |
1825 | } |
3117 | } |
… | |
… | |
1832 | int fd = w->fd; |
3124 | int fd = w->fd; |
1833 | |
3125 | |
1834 | if (expect_false (ev_is_active (w))) |
3126 | if (expect_false (ev_is_active (w))) |
1835 | return; |
3127 | return; |
1836 | |
3128 | |
1837 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3129 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
3130 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
3131 | |
|
|
3132 | EV_FREQUENT_CHECK; |
1838 | |
3133 | |
1839 | ev_start (EV_A_ (W)w, 1); |
3134 | ev_start (EV_A_ (W)w, 1); |
1840 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
3135 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1841 | wlist_add (&anfds[fd].head, (WL)w); |
3136 | wlist_add (&anfds[fd].head, (WL)w); |
1842 | |
3137 | |
1843 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
3138 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1844 | w->events &= ~EV_IOFDSET; |
3139 | w->events &= ~EV__IOFDSET; |
|
|
3140 | |
|
|
3141 | EV_FREQUENT_CHECK; |
1845 | } |
3142 | } |
1846 | |
3143 | |
1847 | void noinline |
3144 | void noinline |
1848 | ev_io_stop (EV_P_ ev_io *w) |
3145 | ev_io_stop (EV_P_ ev_io *w) |
1849 | { |
3146 | { |
1850 | clear_pending (EV_A_ (W)w); |
3147 | clear_pending (EV_A_ (W)w); |
1851 | if (expect_false (!ev_is_active (w))) |
3148 | if (expect_false (!ev_is_active (w))) |
1852 | return; |
3149 | return; |
1853 | |
3150 | |
1854 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3151 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
3152 | |
|
|
3153 | EV_FREQUENT_CHECK; |
1855 | |
3154 | |
1856 | wlist_del (&anfds[w->fd].head, (WL)w); |
3155 | wlist_del (&anfds[w->fd].head, (WL)w); |
1857 | ev_stop (EV_A_ (W)w); |
3156 | ev_stop (EV_A_ (W)w); |
1858 | |
3157 | |
1859 | fd_change (EV_A_ w->fd, 1); |
3158 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
3159 | |
|
|
3160 | EV_FREQUENT_CHECK; |
1860 | } |
3161 | } |
1861 | |
3162 | |
1862 | void noinline |
3163 | void noinline |
1863 | ev_timer_start (EV_P_ ev_timer *w) |
3164 | ev_timer_start (EV_P_ ev_timer *w) |
1864 | { |
3165 | { |
1865 | if (expect_false (ev_is_active (w))) |
3166 | if (expect_false (ev_is_active (w))) |
1866 | return; |
3167 | return; |
1867 | |
3168 | |
1868 | ((WT)w)->at += mn_now; |
3169 | ev_at (w) += mn_now; |
1869 | |
3170 | |
1870 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3171 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1871 | |
3172 | |
|
|
3173 | EV_FREQUENT_CHECK; |
|
|
3174 | |
|
|
3175 | ++timercnt; |
1872 | ev_start (EV_A_ (W)w, ++timercnt); |
3176 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1873 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
3177 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1874 | timers [timercnt - 1] = (WT)w; |
3178 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1875 | upheap (timers, timercnt - 1); |
3179 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
3180 | upheap (timers, ev_active (w)); |
1876 | |
3181 | |
|
|
3182 | EV_FREQUENT_CHECK; |
|
|
3183 | |
1877 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
3184 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1878 | } |
3185 | } |
1879 | |
3186 | |
1880 | void noinline |
3187 | void noinline |
1881 | ev_timer_stop (EV_P_ ev_timer *w) |
3188 | ev_timer_stop (EV_P_ ev_timer *w) |
1882 | { |
3189 | { |
1883 | clear_pending (EV_A_ (W)w); |
3190 | clear_pending (EV_A_ (W)w); |
1884 | if (expect_false (!ev_is_active (w))) |
3191 | if (expect_false (!ev_is_active (w))) |
1885 | return; |
3192 | return; |
1886 | |
3193 | |
1887 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
3194 | EV_FREQUENT_CHECK; |
1888 | |
3195 | |
1889 | { |
3196 | { |
1890 | int active = ((W)w)->active; |
3197 | int active = ev_active (w); |
1891 | |
3198 | |
|
|
3199 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
3200 | |
|
|
3201 | --timercnt; |
|
|
3202 | |
1892 | if (expect_true (--active < --timercnt)) |
3203 | if (expect_true (active < timercnt + HEAP0)) |
1893 | { |
3204 | { |
1894 | timers [active] = timers [timercnt]; |
3205 | timers [active] = timers [timercnt + HEAP0]; |
1895 | adjustheap (timers, timercnt, active); |
3206 | adjustheap (timers, timercnt, active); |
1896 | } |
3207 | } |
1897 | } |
3208 | } |
1898 | |
3209 | |
1899 | ((WT)w)->at -= mn_now; |
3210 | ev_at (w) -= mn_now; |
1900 | |
3211 | |
1901 | ev_stop (EV_A_ (W)w); |
3212 | ev_stop (EV_A_ (W)w); |
|
|
3213 | |
|
|
3214 | EV_FREQUENT_CHECK; |
1902 | } |
3215 | } |
1903 | |
3216 | |
1904 | void noinline |
3217 | void noinline |
1905 | ev_timer_again (EV_P_ ev_timer *w) |
3218 | ev_timer_again (EV_P_ ev_timer *w) |
1906 | { |
3219 | { |
|
|
3220 | EV_FREQUENT_CHECK; |
|
|
3221 | |
1907 | if (ev_is_active (w)) |
3222 | if (ev_is_active (w)) |
1908 | { |
3223 | { |
1909 | if (w->repeat) |
3224 | if (w->repeat) |
1910 | { |
3225 | { |
1911 | ((WT)w)->at = mn_now + w->repeat; |
3226 | ev_at (w) = mn_now + w->repeat; |
|
|
3227 | ANHE_at_cache (timers [ev_active (w)]); |
1912 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
3228 | adjustheap (timers, timercnt, ev_active (w)); |
1913 | } |
3229 | } |
1914 | else |
3230 | else |
1915 | ev_timer_stop (EV_A_ w); |
3231 | ev_timer_stop (EV_A_ w); |
1916 | } |
3232 | } |
1917 | else if (w->repeat) |
3233 | else if (w->repeat) |
1918 | { |
3234 | { |
1919 | w->at = w->repeat; |
3235 | ev_at (w) = w->repeat; |
1920 | ev_timer_start (EV_A_ w); |
3236 | ev_timer_start (EV_A_ w); |
1921 | } |
3237 | } |
|
|
3238 | |
|
|
3239 | EV_FREQUENT_CHECK; |
|
|
3240 | } |
|
|
3241 | |
|
|
3242 | ev_tstamp |
|
|
3243 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
3244 | { |
|
|
3245 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1922 | } |
3246 | } |
1923 | |
3247 | |
1924 | #if EV_PERIODIC_ENABLE |
3248 | #if EV_PERIODIC_ENABLE |
1925 | void noinline |
3249 | void noinline |
1926 | ev_periodic_start (EV_P_ ev_periodic *w) |
3250 | ev_periodic_start (EV_P_ ev_periodic *w) |
1927 | { |
3251 | { |
1928 | if (expect_false (ev_is_active (w))) |
3252 | if (expect_false (ev_is_active (w))) |
1929 | return; |
3253 | return; |
1930 | |
3254 | |
1931 | if (w->reschedule_cb) |
3255 | if (w->reschedule_cb) |
1932 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
3256 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1933 | else if (w->interval) |
3257 | else if (w->interval) |
1934 | { |
3258 | { |
1935 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3259 | 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 */ |
3260 | periodic_recalc (EV_A_ w); |
1937 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1938 | } |
3261 | } |
1939 | else |
3262 | else |
1940 | ((WT)w)->at = w->offset; |
3263 | ev_at (w) = w->offset; |
1941 | |
3264 | |
|
|
3265 | EV_FREQUENT_CHECK; |
|
|
3266 | |
|
|
3267 | ++periodiccnt; |
1942 | ev_start (EV_A_ (W)w, ++periodiccnt); |
3268 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1943 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
3269 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1944 | periodics [periodiccnt - 1] = (WT)w; |
3270 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1945 | upheap (periodics, periodiccnt - 1); |
3271 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
3272 | upheap (periodics, ev_active (w)); |
1946 | |
3273 | |
|
|
3274 | EV_FREQUENT_CHECK; |
|
|
3275 | |
1947 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
3276 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1948 | } |
3277 | } |
1949 | |
3278 | |
1950 | void noinline |
3279 | void noinline |
1951 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3280 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1952 | { |
3281 | { |
1953 | clear_pending (EV_A_ (W)w); |
3282 | clear_pending (EV_A_ (W)w); |
1954 | if (expect_false (!ev_is_active (w))) |
3283 | if (expect_false (!ev_is_active (w))) |
1955 | return; |
3284 | return; |
1956 | |
3285 | |
1957 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
3286 | EV_FREQUENT_CHECK; |
1958 | |
3287 | |
1959 | { |
3288 | { |
1960 | int active = ((W)w)->active; |
3289 | int active = ev_active (w); |
1961 | |
3290 | |
|
|
3291 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
3292 | |
|
|
3293 | --periodiccnt; |
|
|
3294 | |
1962 | if (expect_true (--active < --periodiccnt)) |
3295 | if (expect_true (active < periodiccnt + HEAP0)) |
1963 | { |
3296 | { |
1964 | periodics [active] = periodics [periodiccnt]; |
3297 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1965 | adjustheap (periodics, periodiccnt, active); |
3298 | adjustheap (periodics, periodiccnt, active); |
1966 | } |
3299 | } |
1967 | } |
3300 | } |
1968 | |
3301 | |
1969 | ev_stop (EV_A_ (W)w); |
3302 | ev_stop (EV_A_ (W)w); |
|
|
3303 | |
|
|
3304 | EV_FREQUENT_CHECK; |
1970 | } |
3305 | } |
1971 | |
3306 | |
1972 | void noinline |
3307 | void noinline |
1973 | ev_periodic_again (EV_P_ ev_periodic *w) |
3308 | ev_periodic_again (EV_P_ ev_periodic *w) |
1974 | { |
3309 | { |
… | |
… | |
1980 | |
3315 | |
1981 | #ifndef SA_RESTART |
3316 | #ifndef SA_RESTART |
1982 | # define SA_RESTART 0 |
3317 | # define SA_RESTART 0 |
1983 | #endif |
3318 | #endif |
1984 | |
3319 | |
|
|
3320 | #if EV_SIGNAL_ENABLE |
|
|
3321 | |
1985 | void noinline |
3322 | void noinline |
1986 | ev_signal_start (EV_P_ ev_signal *w) |
3323 | ev_signal_start (EV_P_ ev_signal *w) |
1987 | { |
3324 | { |
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))) |
3325 | if (expect_false (ev_is_active (w))) |
1992 | return; |
3326 | return; |
1993 | |
3327 | |
1994 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3328 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1995 | |
3329 | |
1996 | evpipe_init (EV_A); |
3330 | #if EV_MULTIPLICITY |
|
|
3331 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3332 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
1997 | |
3333 | |
|
|
3334 | signals [w->signum - 1].loop = EV_A; |
|
|
3335 | #endif |
|
|
3336 | |
|
|
3337 | EV_FREQUENT_CHECK; |
|
|
3338 | |
|
|
3339 | #if EV_USE_SIGNALFD |
|
|
3340 | if (sigfd == -2) |
1998 | { |
3341 | { |
1999 | #ifndef _WIN32 |
3342 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2000 | sigset_t full, prev; |
3343 | if (sigfd < 0 && errno == EINVAL) |
2001 | sigfillset (&full); |
3344 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2002 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2003 | #endif |
|
|
2004 | |
3345 | |
2005 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
3346 | if (sigfd >= 0) |
|
|
3347 | { |
|
|
3348 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2006 | |
3349 | |
2007 | #ifndef _WIN32 |
3350 | sigemptyset (&sigfd_set); |
2008 | sigprocmask (SIG_SETMASK, &prev, 0); |
3351 | |
2009 | #endif |
3352 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3353 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3354 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3355 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3356 | } |
2010 | } |
3357 | } |
|
|
3358 | |
|
|
3359 | if (sigfd >= 0) |
|
|
3360 | { |
|
|
3361 | /* TODO: check .head */ |
|
|
3362 | sigaddset (&sigfd_set, w->signum); |
|
|
3363 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3364 | |
|
|
3365 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3366 | } |
|
|
3367 | #endif |
2011 | |
3368 | |
2012 | ev_start (EV_A_ (W)w, 1); |
3369 | ev_start (EV_A_ (W)w, 1); |
2013 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3370 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2014 | |
3371 | |
2015 | if (!((WL)w)->next) |
3372 | if (!((WL)w)->next) |
|
|
3373 | # if EV_USE_SIGNALFD |
|
|
3374 | if (sigfd < 0) /*TODO*/ |
|
|
3375 | # endif |
2016 | { |
3376 | { |
2017 | #if _WIN32 |
3377 | # ifdef _WIN32 |
|
|
3378 | evpipe_init (EV_A); |
|
|
3379 | |
2018 | signal (w->signum, ev_sighandler); |
3380 | signal (w->signum, ev_sighandler); |
2019 | #else |
3381 | # else |
2020 | struct sigaction sa; |
3382 | struct sigaction sa; |
|
|
3383 | |
|
|
3384 | evpipe_init (EV_A); |
|
|
3385 | |
2021 | sa.sa_handler = ev_sighandler; |
3386 | sa.sa_handler = ev_sighandler; |
2022 | sigfillset (&sa.sa_mask); |
3387 | sigfillset (&sa.sa_mask); |
2023 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3388 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2024 | sigaction (w->signum, &sa, 0); |
3389 | sigaction (w->signum, &sa, 0); |
|
|
3390 | |
|
|
3391 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3392 | { |
|
|
3393 | sigemptyset (&sa.sa_mask); |
|
|
3394 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3395 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3396 | } |
2025 | #endif |
3397 | #endif |
2026 | } |
3398 | } |
|
|
3399 | |
|
|
3400 | EV_FREQUENT_CHECK; |
2027 | } |
3401 | } |
2028 | |
3402 | |
2029 | void noinline |
3403 | void noinline |
2030 | ev_signal_stop (EV_P_ ev_signal *w) |
3404 | ev_signal_stop (EV_P_ ev_signal *w) |
2031 | { |
3405 | { |
2032 | clear_pending (EV_A_ (W)w); |
3406 | clear_pending (EV_A_ (W)w); |
2033 | if (expect_false (!ev_is_active (w))) |
3407 | if (expect_false (!ev_is_active (w))) |
2034 | return; |
3408 | return; |
2035 | |
3409 | |
|
|
3410 | EV_FREQUENT_CHECK; |
|
|
3411 | |
2036 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3412 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2037 | ev_stop (EV_A_ (W)w); |
3413 | ev_stop (EV_A_ (W)w); |
2038 | |
3414 | |
2039 | if (!signals [w->signum - 1].head) |
3415 | if (!signals [w->signum - 1].head) |
|
|
3416 | { |
|
|
3417 | #if EV_MULTIPLICITY |
|
|
3418 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3419 | #endif |
|
|
3420 | #if EV_USE_SIGNALFD |
|
|
3421 | if (sigfd >= 0) |
|
|
3422 | { |
|
|
3423 | sigset_t ss; |
|
|
3424 | |
|
|
3425 | sigemptyset (&ss); |
|
|
3426 | sigaddset (&ss, w->signum); |
|
|
3427 | sigdelset (&sigfd_set, w->signum); |
|
|
3428 | |
|
|
3429 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3430 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3431 | } |
|
|
3432 | else |
|
|
3433 | #endif |
2040 | signal (w->signum, SIG_DFL); |
3434 | signal (w->signum, SIG_DFL); |
|
|
3435 | } |
|
|
3436 | |
|
|
3437 | EV_FREQUENT_CHECK; |
2041 | } |
3438 | } |
|
|
3439 | |
|
|
3440 | #endif |
|
|
3441 | |
|
|
3442 | #if EV_CHILD_ENABLE |
2042 | |
3443 | |
2043 | void |
3444 | void |
2044 | ev_child_start (EV_P_ ev_child *w) |
3445 | ev_child_start (EV_P_ ev_child *w) |
2045 | { |
3446 | { |
2046 | #if EV_MULTIPLICITY |
3447 | #if EV_MULTIPLICITY |
2047 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3448 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2048 | #endif |
3449 | #endif |
2049 | if (expect_false (ev_is_active (w))) |
3450 | if (expect_false (ev_is_active (w))) |
2050 | return; |
3451 | return; |
2051 | |
3452 | |
|
|
3453 | EV_FREQUENT_CHECK; |
|
|
3454 | |
2052 | ev_start (EV_A_ (W)w, 1); |
3455 | ev_start (EV_A_ (W)w, 1); |
2053 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3456 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3457 | |
|
|
3458 | EV_FREQUENT_CHECK; |
2054 | } |
3459 | } |
2055 | |
3460 | |
2056 | void |
3461 | void |
2057 | ev_child_stop (EV_P_ ev_child *w) |
3462 | ev_child_stop (EV_P_ ev_child *w) |
2058 | { |
3463 | { |
2059 | clear_pending (EV_A_ (W)w); |
3464 | clear_pending (EV_A_ (W)w); |
2060 | if (expect_false (!ev_is_active (w))) |
3465 | if (expect_false (!ev_is_active (w))) |
2061 | return; |
3466 | return; |
2062 | |
3467 | |
|
|
3468 | EV_FREQUENT_CHECK; |
|
|
3469 | |
2063 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3470 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2064 | ev_stop (EV_A_ (W)w); |
3471 | ev_stop (EV_A_ (W)w); |
|
|
3472 | |
|
|
3473 | EV_FREQUENT_CHECK; |
2065 | } |
3474 | } |
|
|
3475 | |
|
|
3476 | #endif |
2066 | |
3477 | |
2067 | #if EV_STAT_ENABLE |
3478 | #if EV_STAT_ENABLE |
2068 | |
3479 | |
2069 | # ifdef _WIN32 |
3480 | # ifdef _WIN32 |
2070 | # undef lstat |
3481 | # undef lstat |
2071 | # define lstat(a,b) _stati64 (a,b) |
3482 | # define lstat(a,b) _stati64 (a,b) |
2072 | # endif |
3483 | # endif |
2073 | |
3484 | |
2074 | #define DEF_STAT_INTERVAL 5.0074891 |
3485 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3486 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2075 | #define MIN_STAT_INTERVAL 0.1074891 |
3487 | #define MIN_STAT_INTERVAL 0.1074891 |
2076 | |
3488 | |
2077 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3489 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2078 | |
3490 | |
2079 | #if EV_USE_INOTIFY |
3491 | #if EV_USE_INOTIFY |
2080 | # define EV_INOTIFY_BUFSIZE 8192 |
3492 | |
|
|
3493 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3494 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2081 | |
3495 | |
2082 | static void noinline |
3496 | static void noinline |
2083 | infy_add (EV_P_ ev_stat *w) |
3497 | infy_add (EV_P_ ev_stat *w) |
2084 | { |
3498 | { |
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); |
3499 | 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 | |
3500 | |
2087 | if (w->wd < 0) |
3501 | if (w->wd >= 0) |
|
|
3502 | { |
|
|
3503 | struct statfs sfs; |
|
|
3504 | |
|
|
3505 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3506 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3507 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3508 | |
|
|
3509 | if (!fs_2625) |
|
|
3510 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3511 | else if (!statfs (w->path, &sfs) |
|
|
3512 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3513 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3514 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3515 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3516 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3517 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3518 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3519 | else |
|
|
3520 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2088 | { |
3521 | } |
2089 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3522 | else |
|
|
3523 | { |
|
|
3524 | /* can't use inotify, continue to stat */ |
|
|
3525 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2090 | |
3526 | |
2091 | /* monitor some parent directory for speedup hints */ |
3527 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3528 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3529 | /* but an efficiency issue only */ |
2092 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3530 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2093 | { |
3531 | { |
2094 | char path [4096]; |
3532 | char path [4096]; |
2095 | strcpy (path, w->path); |
3533 | strcpy (path, w->path); |
2096 | |
3534 | |
… | |
… | |
2099 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3537 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2100 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3538 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2101 | |
3539 | |
2102 | char *pend = strrchr (path, '/'); |
3540 | char *pend = strrchr (path, '/'); |
2103 | |
3541 | |
2104 | if (!pend) |
3542 | if (!pend || pend == path) |
2105 | break; /* whoops, no '/', complain to your admin */ |
3543 | break; |
2106 | |
3544 | |
2107 | *pend = 0; |
3545 | *pend = 0; |
2108 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3546 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2109 | } |
3547 | } |
2110 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3548 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2111 | } |
3549 | } |
2112 | } |
3550 | } |
2113 | else |
|
|
2114 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2115 | |
3551 | |
2116 | if (w->wd >= 0) |
3552 | if (w->wd >= 0) |
2117 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3553 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3554 | |
|
|
3555 | /* now re-arm timer, if required */ |
|
|
3556 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3557 | ev_timer_again (EV_A_ &w->timer); |
|
|
3558 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2118 | } |
3559 | } |
2119 | |
3560 | |
2120 | static void noinline |
3561 | static void noinline |
2121 | infy_del (EV_P_ ev_stat *w) |
3562 | infy_del (EV_P_ ev_stat *w) |
2122 | { |
3563 | { |
… | |
… | |
2125 | |
3566 | |
2126 | if (wd < 0) |
3567 | if (wd < 0) |
2127 | return; |
3568 | return; |
2128 | |
3569 | |
2129 | w->wd = -2; |
3570 | w->wd = -2; |
2130 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3571 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2131 | wlist_del (&fs_hash [slot].head, (WL)w); |
3572 | wlist_del (&fs_hash [slot].head, (WL)w); |
2132 | |
3573 | |
2133 | /* remove this watcher, if others are watching it, they will rearm */ |
3574 | /* remove this watcher, if others are watching it, they will rearm */ |
2134 | inotify_rm_watch (fs_fd, wd); |
3575 | inotify_rm_watch (fs_fd, wd); |
2135 | } |
3576 | } |
2136 | |
3577 | |
2137 | static void noinline |
3578 | static void noinline |
2138 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3579 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2139 | { |
3580 | { |
2140 | if (slot < 0) |
3581 | if (slot < 0) |
2141 | /* overflow, need to check for all hahs slots */ |
3582 | /* overflow, need to check for all hash slots */ |
2142 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3583 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2143 | infy_wd (EV_A_ slot, wd, ev); |
3584 | infy_wd (EV_A_ slot, wd, ev); |
2144 | else |
3585 | else |
2145 | { |
3586 | { |
2146 | WL w_; |
3587 | WL w_; |
2147 | |
3588 | |
2148 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3589 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2149 | { |
3590 | { |
2150 | ev_stat *w = (ev_stat *)w_; |
3591 | ev_stat *w = (ev_stat *)w_; |
2151 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3592 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2152 | |
3593 | |
2153 | if (w->wd == wd || wd == -1) |
3594 | if (w->wd == wd || wd == -1) |
2154 | { |
3595 | { |
2155 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3596 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2156 | { |
3597 | { |
|
|
3598 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2157 | w->wd = -1; |
3599 | w->wd = -1; |
2158 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3600 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2159 | } |
3601 | } |
2160 | |
3602 | |
2161 | stat_timer_cb (EV_A_ &w->timer, 0); |
3603 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2166 | |
3608 | |
2167 | static void |
3609 | static void |
2168 | infy_cb (EV_P_ ev_io *w, int revents) |
3610 | infy_cb (EV_P_ ev_io *w, int revents) |
2169 | { |
3611 | { |
2170 | char buf [EV_INOTIFY_BUFSIZE]; |
3612 | char buf [EV_INOTIFY_BUFSIZE]; |
2171 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2172 | int ofs; |
3613 | int ofs; |
2173 | int len = read (fs_fd, buf, sizeof (buf)); |
3614 | int len = read (fs_fd, buf, sizeof (buf)); |
2174 | |
3615 | |
2175 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3616 | for (ofs = 0; ofs < len; ) |
|
|
3617 | { |
|
|
3618 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2176 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3619 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3620 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3621 | } |
2177 | } |
3622 | } |
2178 | |
3623 | |
2179 | void inline_size |
3624 | inline_size void ecb_cold |
|
|
3625 | ev_check_2625 (EV_P) |
|
|
3626 | { |
|
|
3627 | /* kernels < 2.6.25 are borked |
|
|
3628 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3629 | */ |
|
|
3630 | if (ev_linux_version () < 0x020619) |
|
|
3631 | return; |
|
|
3632 | |
|
|
3633 | fs_2625 = 1; |
|
|
3634 | } |
|
|
3635 | |
|
|
3636 | inline_size int |
|
|
3637 | infy_newfd (void) |
|
|
3638 | { |
|
|
3639 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3640 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3641 | if (fd >= 0) |
|
|
3642 | return fd; |
|
|
3643 | #endif |
|
|
3644 | return inotify_init (); |
|
|
3645 | } |
|
|
3646 | |
|
|
3647 | inline_size void |
2180 | infy_init (EV_P) |
3648 | infy_init (EV_P) |
2181 | { |
3649 | { |
2182 | if (fs_fd != -2) |
3650 | if (fs_fd != -2) |
2183 | return; |
3651 | return; |
2184 | |
3652 | |
|
|
3653 | fs_fd = -1; |
|
|
3654 | |
|
|
3655 | ev_check_2625 (EV_A); |
|
|
3656 | |
2185 | fs_fd = inotify_init (); |
3657 | fs_fd = infy_newfd (); |
2186 | |
3658 | |
2187 | if (fs_fd >= 0) |
3659 | if (fs_fd >= 0) |
2188 | { |
3660 | { |
|
|
3661 | fd_intern (fs_fd); |
2189 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3662 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2190 | ev_set_priority (&fs_w, EV_MAXPRI); |
3663 | ev_set_priority (&fs_w, EV_MAXPRI); |
2191 | ev_io_start (EV_A_ &fs_w); |
3664 | ev_io_start (EV_A_ &fs_w); |
|
|
3665 | ev_unref (EV_A); |
2192 | } |
3666 | } |
2193 | } |
3667 | } |
2194 | |
3668 | |
2195 | void inline_size |
3669 | inline_size void |
2196 | infy_fork (EV_P) |
3670 | infy_fork (EV_P) |
2197 | { |
3671 | { |
2198 | int slot; |
3672 | int slot; |
2199 | |
3673 | |
2200 | if (fs_fd < 0) |
3674 | if (fs_fd < 0) |
2201 | return; |
3675 | return; |
2202 | |
3676 | |
|
|
3677 | ev_ref (EV_A); |
|
|
3678 | ev_io_stop (EV_A_ &fs_w); |
2203 | close (fs_fd); |
3679 | close (fs_fd); |
2204 | fs_fd = inotify_init (); |
3680 | fs_fd = infy_newfd (); |
2205 | |
3681 | |
|
|
3682 | if (fs_fd >= 0) |
|
|
3683 | { |
|
|
3684 | fd_intern (fs_fd); |
|
|
3685 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3686 | ev_io_start (EV_A_ &fs_w); |
|
|
3687 | ev_unref (EV_A); |
|
|
3688 | } |
|
|
3689 | |
2206 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3690 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2207 | { |
3691 | { |
2208 | WL w_ = fs_hash [slot].head; |
3692 | WL w_ = fs_hash [slot].head; |
2209 | fs_hash [slot].head = 0; |
3693 | fs_hash [slot].head = 0; |
2210 | |
3694 | |
2211 | while (w_) |
3695 | while (w_) |
… | |
… | |
2216 | w->wd = -1; |
3700 | w->wd = -1; |
2217 | |
3701 | |
2218 | if (fs_fd >= 0) |
3702 | if (fs_fd >= 0) |
2219 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3703 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2220 | else |
3704 | else |
|
|
3705 | { |
|
|
3706 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3707 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2221 | ev_timer_start (EV_A_ &w->timer); |
3708 | ev_timer_again (EV_A_ &w->timer); |
|
|
3709 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3710 | } |
2222 | } |
3711 | } |
2223 | |
|
|
2224 | } |
3712 | } |
2225 | } |
3713 | } |
2226 | |
3714 | |
|
|
3715 | #endif |
|
|
3716 | |
|
|
3717 | #ifdef _WIN32 |
|
|
3718 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3719 | #else |
|
|
3720 | # define EV_LSTAT(p,b) lstat (p, b) |
2227 | #endif |
3721 | #endif |
2228 | |
3722 | |
2229 | void |
3723 | void |
2230 | ev_stat_stat (EV_P_ ev_stat *w) |
3724 | ev_stat_stat (EV_P_ ev_stat *w) |
2231 | { |
3725 | { |
… | |
… | |
2238 | static void noinline |
3732 | static void noinline |
2239 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3733 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2240 | { |
3734 | { |
2241 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3735 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2242 | |
3736 | |
2243 | /* we copy this here each the time so that */ |
3737 | 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); |
3738 | ev_stat_stat (EV_A_ w); |
2247 | |
3739 | |
2248 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3740 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2249 | if ( |
3741 | if ( |
2250 | w->prev.st_dev != w->attr.st_dev |
3742 | prev.st_dev != w->attr.st_dev |
2251 | || w->prev.st_ino != w->attr.st_ino |
3743 | || prev.st_ino != w->attr.st_ino |
2252 | || w->prev.st_mode != w->attr.st_mode |
3744 | || prev.st_mode != w->attr.st_mode |
2253 | || w->prev.st_nlink != w->attr.st_nlink |
3745 | || prev.st_nlink != w->attr.st_nlink |
2254 | || w->prev.st_uid != w->attr.st_uid |
3746 | || prev.st_uid != w->attr.st_uid |
2255 | || w->prev.st_gid != w->attr.st_gid |
3747 | || prev.st_gid != w->attr.st_gid |
2256 | || w->prev.st_rdev != w->attr.st_rdev |
3748 | || prev.st_rdev != w->attr.st_rdev |
2257 | || w->prev.st_size != w->attr.st_size |
3749 | || prev.st_size != w->attr.st_size |
2258 | || w->prev.st_atime != w->attr.st_atime |
3750 | || prev.st_atime != w->attr.st_atime |
2259 | || w->prev.st_mtime != w->attr.st_mtime |
3751 | || prev.st_mtime != w->attr.st_mtime |
2260 | || w->prev.st_ctime != w->attr.st_ctime |
3752 | || prev.st_ctime != w->attr.st_ctime |
2261 | ) { |
3753 | ) { |
|
|
3754 | /* we only update w->prev on actual differences */ |
|
|
3755 | /* in case we test more often than invoke the callback, */ |
|
|
3756 | /* to ensure that prev is always different to attr */ |
|
|
3757 | w->prev = prev; |
|
|
3758 | |
2262 | #if EV_USE_INOTIFY |
3759 | #if EV_USE_INOTIFY |
|
|
3760 | if (fs_fd >= 0) |
|
|
3761 | { |
2263 | infy_del (EV_A_ w); |
3762 | infy_del (EV_A_ w); |
2264 | infy_add (EV_A_ w); |
3763 | infy_add (EV_A_ w); |
2265 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3764 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3765 | } |
2266 | #endif |
3766 | #endif |
2267 | |
3767 | |
2268 | ev_feed_event (EV_A_ w, EV_STAT); |
3768 | ev_feed_event (EV_A_ w, EV_STAT); |
2269 | } |
3769 | } |
2270 | } |
3770 | } |
… | |
… | |
2273 | ev_stat_start (EV_P_ ev_stat *w) |
3773 | ev_stat_start (EV_P_ ev_stat *w) |
2274 | { |
3774 | { |
2275 | if (expect_false (ev_is_active (w))) |
3775 | if (expect_false (ev_is_active (w))) |
2276 | return; |
3776 | return; |
2277 | |
3777 | |
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); |
3778 | ev_stat_stat (EV_A_ w); |
2283 | |
3779 | |
|
|
3780 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2284 | if (w->interval < MIN_STAT_INTERVAL) |
3781 | w->interval = MIN_STAT_INTERVAL; |
2285 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2286 | |
3782 | |
2287 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3783 | 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)); |
3784 | ev_set_priority (&w->timer, ev_priority (w)); |
2289 | |
3785 | |
2290 | #if EV_USE_INOTIFY |
3786 | #if EV_USE_INOTIFY |
2291 | infy_init (EV_A); |
3787 | infy_init (EV_A); |
2292 | |
3788 | |
2293 | if (fs_fd >= 0) |
3789 | if (fs_fd >= 0) |
2294 | infy_add (EV_A_ w); |
3790 | infy_add (EV_A_ w); |
2295 | else |
3791 | else |
2296 | #endif |
3792 | #endif |
|
|
3793 | { |
2297 | ev_timer_start (EV_A_ &w->timer); |
3794 | ev_timer_again (EV_A_ &w->timer); |
|
|
3795 | ev_unref (EV_A); |
|
|
3796 | } |
2298 | |
3797 | |
2299 | ev_start (EV_A_ (W)w, 1); |
3798 | ev_start (EV_A_ (W)w, 1); |
|
|
3799 | |
|
|
3800 | EV_FREQUENT_CHECK; |
2300 | } |
3801 | } |
2301 | |
3802 | |
2302 | void |
3803 | void |
2303 | ev_stat_stop (EV_P_ ev_stat *w) |
3804 | ev_stat_stop (EV_P_ ev_stat *w) |
2304 | { |
3805 | { |
2305 | clear_pending (EV_A_ (W)w); |
3806 | clear_pending (EV_A_ (W)w); |
2306 | if (expect_false (!ev_is_active (w))) |
3807 | if (expect_false (!ev_is_active (w))) |
2307 | return; |
3808 | return; |
2308 | |
3809 | |
|
|
3810 | EV_FREQUENT_CHECK; |
|
|
3811 | |
2309 | #if EV_USE_INOTIFY |
3812 | #if EV_USE_INOTIFY |
2310 | infy_del (EV_A_ w); |
3813 | infy_del (EV_A_ w); |
2311 | #endif |
3814 | #endif |
|
|
3815 | |
|
|
3816 | if (ev_is_active (&w->timer)) |
|
|
3817 | { |
|
|
3818 | ev_ref (EV_A); |
2312 | ev_timer_stop (EV_A_ &w->timer); |
3819 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3820 | } |
2313 | |
3821 | |
2314 | ev_stop (EV_A_ (W)w); |
3822 | ev_stop (EV_A_ (W)w); |
|
|
3823 | |
|
|
3824 | EV_FREQUENT_CHECK; |
2315 | } |
3825 | } |
2316 | #endif |
3826 | #endif |
2317 | |
3827 | |
2318 | #if EV_IDLE_ENABLE |
3828 | #if EV_IDLE_ENABLE |
2319 | void |
3829 | void |
… | |
… | |
2322 | if (expect_false (ev_is_active (w))) |
3832 | if (expect_false (ev_is_active (w))) |
2323 | return; |
3833 | return; |
2324 | |
3834 | |
2325 | pri_adjust (EV_A_ (W)w); |
3835 | pri_adjust (EV_A_ (W)w); |
2326 | |
3836 | |
|
|
3837 | EV_FREQUENT_CHECK; |
|
|
3838 | |
2327 | { |
3839 | { |
2328 | int active = ++idlecnt [ABSPRI (w)]; |
3840 | int active = ++idlecnt [ABSPRI (w)]; |
2329 | |
3841 | |
2330 | ++idleall; |
3842 | ++idleall; |
2331 | ev_start (EV_A_ (W)w, active); |
3843 | ev_start (EV_A_ (W)w, active); |
2332 | |
3844 | |
2333 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3845 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2334 | idles [ABSPRI (w)][active - 1] = w; |
3846 | idles [ABSPRI (w)][active - 1] = w; |
2335 | } |
3847 | } |
|
|
3848 | |
|
|
3849 | EV_FREQUENT_CHECK; |
2336 | } |
3850 | } |
2337 | |
3851 | |
2338 | void |
3852 | void |
2339 | ev_idle_stop (EV_P_ ev_idle *w) |
3853 | ev_idle_stop (EV_P_ ev_idle *w) |
2340 | { |
3854 | { |
2341 | clear_pending (EV_A_ (W)w); |
3855 | clear_pending (EV_A_ (W)w); |
2342 | if (expect_false (!ev_is_active (w))) |
3856 | if (expect_false (!ev_is_active (w))) |
2343 | return; |
3857 | return; |
2344 | |
3858 | |
|
|
3859 | EV_FREQUENT_CHECK; |
|
|
3860 | |
2345 | { |
3861 | { |
2346 | int active = ((W)w)->active; |
3862 | int active = ev_active (w); |
2347 | |
3863 | |
2348 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3864 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2349 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3865 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2350 | |
3866 | |
2351 | ev_stop (EV_A_ (W)w); |
3867 | ev_stop (EV_A_ (W)w); |
2352 | --idleall; |
3868 | --idleall; |
2353 | } |
3869 | } |
2354 | } |
|
|
2355 | #endif |
|
|
2356 | |
3870 | |
|
|
3871 | EV_FREQUENT_CHECK; |
|
|
3872 | } |
|
|
3873 | #endif |
|
|
3874 | |
|
|
3875 | #if EV_PREPARE_ENABLE |
2357 | void |
3876 | void |
2358 | ev_prepare_start (EV_P_ ev_prepare *w) |
3877 | ev_prepare_start (EV_P_ ev_prepare *w) |
2359 | { |
3878 | { |
2360 | if (expect_false (ev_is_active (w))) |
3879 | if (expect_false (ev_is_active (w))) |
2361 | return; |
3880 | return; |
|
|
3881 | |
|
|
3882 | EV_FREQUENT_CHECK; |
2362 | |
3883 | |
2363 | ev_start (EV_A_ (W)w, ++preparecnt); |
3884 | ev_start (EV_A_ (W)w, ++preparecnt); |
2364 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3885 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2365 | prepares [preparecnt - 1] = w; |
3886 | prepares [preparecnt - 1] = w; |
|
|
3887 | |
|
|
3888 | EV_FREQUENT_CHECK; |
2366 | } |
3889 | } |
2367 | |
3890 | |
2368 | void |
3891 | void |
2369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3892 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2370 | { |
3893 | { |
2371 | clear_pending (EV_A_ (W)w); |
3894 | clear_pending (EV_A_ (W)w); |
2372 | if (expect_false (!ev_is_active (w))) |
3895 | if (expect_false (!ev_is_active (w))) |
2373 | return; |
3896 | return; |
2374 | |
3897 | |
|
|
3898 | EV_FREQUENT_CHECK; |
|
|
3899 | |
2375 | { |
3900 | { |
2376 | int active = ((W)w)->active; |
3901 | int active = ev_active (w); |
|
|
3902 | |
2377 | prepares [active - 1] = prepares [--preparecnt]; |
3903 | prepares [active - 1] = prepares [--preparecnt]; |
2378 | ((W)prepares [active - 1])->active = active; |
3904 | ev_active (prepares [active - 1]) = active; |
2379 | } |
3905 | } |
2380 | |
3906 | |
2381 | ev_stop (EV_A_ (W)w); |
3907 | ev_stop (EV_A_ (W)w); |
2382 | } |
|
|
2383 | |
3908 | |
|
|
3909 | EV_FREQUENT_CHECK; |
|
|
3910 | } |
|
|
3911 | #endif |
|
|
3912 | |
|
|
3913 | #if EV_CHECK_ENABLE |
2384 | void |
3914 | void |
2385 | ev_check_start (EV_P_ ev_check *w) |
3915 | ev_check_start (EV_P_ ev_check *w) |
2386 | { |
3916 | { |
2387 | if (expect_false (ev_is_active (w))) |
3917 | if (expect_false (ev_is_active (w))) |
2388 | return; |
3918 | return; |
|
|
3919 | |
|
|
3920 | EV_FREQUENT_CHECK; |
2389 | |
3921 | |
2390 | ev_start (EV_A_ (W)w, ++checkcnt); |
3922 | ev_start (EV_A_ (W)w, ++checkcnt); |
2391 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3923 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2392 | checks [checkcnt - 1] = w; |
3924 | checks [checkcnt - 1] = w; |
|
|
3925 | |
|
|
3926 | EV_FREQUENT_CHECK; |
2393 | } |
3927 | } |
2394 | |
3928 | |
2395 | void |
3929 | void |
2396 | ev_check_stop (EV_P_ ev_check *w) |
3930 | ev_check_stop (EV_P_ ev_check *w) |
2397 | { |
3931 | { |
2398 | clear_pending (EV_A_ (W)w); |
3932 | clear_pending (EV_A_ (W)w); |
2399 | if (expect_false (!ev_is_active (w))) |
3933 | if (expect_false (!ev_is_active (w))) |
2400 | return; |
3934 | return; |
2401 | |
3935 | |
|
|
3936 | EV_FREQUENT_CHECK; |
|
|
3937 | |
2402 | { |
3938 | { |
2403 | int active = ((W)w)->active; |
3939 | int active = ev_active (w); |
|
|
3940 | |
2404 | checks [active - 1] = checks [--checkcnt]; |
3941 | checks [active - 1] = checks [--checkcnt]; |
2405 | ((W)checks [active - 1])->active = active; |
3942 | ev_active (checks [active - 1]) = active; |
2406 | } |
3943 | } |
2407 | |
3944 | |
2408 | ev_stop (EV_A_ (W)w); |
3945 | ev_stop (EV_A_ (W)w); |
|
|
3946 | |
|
|
3947 | EV_FREQUENT_CHECK; |
2409 | } |
3948 | } |
|
|
3949 | #endif |
2410 | |
3950 | |
2411 | #if EV_EMBED_ENABLE |
3951 | #if EV_EMBED_ENABLE |
2412 | void noinline |
3952 | void noinline |
2413 | ev_embed_sweep (EV_P_ ev_embed *w) |
3953 | ev_embed_sweep (EV_P_ ev_embed *w) |
2414 | { |
3954 | { |
2415 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3955 | ev_run (w->other, EVRUN_NOWAIT); |
2416 | } |
3956 | } |
2417 | |
3957 | |
2418 | static void |
3958 | static void |
2419 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3959 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2420 | { |
3960 | { |
2421 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3961 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2422 | |
3962 | |
2423 | if (ev_cb (w)) |
3963 | if (ev_cb (w)) |
2424 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3964 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2425 | else |
3965 | else |
2426 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3966 | ev_run (w->other, EVRUN_NOWAIT); |
2427 | } |
3967 | } |
2428 | |
3968 | |
2429 | static void |
3969 | static void |
2430 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3970 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2431 | { |
3971 | { |
2432 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3972 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2433 | |
3973 | |
2434 | { |
3974 | { |
2435 | struct ev_loop *loop = w->other; |
3975 | EV_P = w->other; |
2436 | |
3976 | |
2437 | while (fdchangecnt) |
3977 | while (fdchangecnt) |
2438 | { |
3978 | { |
2439 | fd_reify (EV_A); |
3979 | fd_reify (EV_A); |
2440 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3980 | ev_run (EV_A_ EVRUN_NOWAIT); |
2441 | } |
3981 | } |
2442 | } |
3982 | } |
|
|
3983 | } |
|
|
3984 | |
|
|
3985 | static void |
|
|
3986 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3987 | { |
|
|
3988 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3989 | |
|
|
3990 | ev_embed_stop (EV_A_ w); |
|
|
3991 | |
|
|
3992 | { |
|
|
3993 | EV_P = w->other; |
|
|
3994 | |
|
|
3995 | ev_loop_fork (EV_A); |
|
|
3996 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3997 | } |
|
|
3998 | |
|
|
3999 | ev_embed_start (EV_A_ w); |
2443 | } |
4000 | } |
2444 | |
4001 | |
2445 | #if 0 |
4002 | #if 0 |
2446 | static void |
4003 | static void |
2447 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4004 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2455 | { |
4012 | { |
2456 | if (expect_false (ev_is_active (w))) |
4013 | if (expect_false (ev_is_active (w))) |
2457 | return; |
4014 | return; |
2458 | |
4015 | |
2459 | { |
4016 | { |
2460 | struct ev_loop *loop = w->other; |
4017 | EV_P = w->other; |
2461 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4018 | 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); |
4019 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2463 | } |
4020 | } |
|
|
4021 | |
|
|
4022 | EV_FREQUENT_CHECK; |
2464 | |
4023 | |
2465 | ev_set_priority (&w->io, ev_priority (w)); |
4024 | ev_set_priority (&w->io, ev_priority (w)); |
2466 | ev_io_start (EV_A_ &w->io); |
4025 | ev_io_start (EV_A_ &w->io); |
2467 | |
4026 | |
2468 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4027 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2469 | ev_set_priority (&w->prepare, EV_MINPRI); |
4028 | ev_set_priority (&w->prepare, EV_MINPRI); |
2470 | ev_prepare_start (EV_A_ &w->prepare); |
4029 | ev_prepare_start (EV_A_ &w->prepare); |
2471 | |
4030 | |
|
|
4031 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
4032 | ev_fork_start (EV_A_ &w->fork); |
|
|
4033 | |
2472 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4034 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2473 | |
4035 | |
2474 | ev_start (EV_A_ (W)w, 1); |
4036 | ev_start (EV_A_ (W)w, 1); |
|
|
4037 | |
|
|
4038 | EV_FREQUENT_CHECK; |
2475 | } |
4039 | } |
2476 | |
4040 | |
2477 | void |
4041 | void |
2478 | ev_embed_stop (EV_P_ ev_embed *w) |
4042 | ev_embed_stop (EV_P_ ev_embed *w) |
2479 | { |
4043 | { |
2480 | clear_pending (EV_A_ (W)w); |
4044 | clear_pending (EV_A_ (W)w); |
2481 | if (expect_false (!ev_is_active (w))) |
4045 | if (expect_false (!ev_is_active (w))) |
2482 | return; |
4046 | return; |
2483 | |
4047 | |
|
|
4048 | EV_FREQUENT_CHECK; |
|
|
4049 | |
2484 | ev_io_stop (EV_A_ &w->io); |
4050 | ev_io_stop (EV_A_ &w->io); |
2485 | ev_prepare_stop (EV_A_ &w->prepare); |
4051 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
4052 | ev_fork_stop (EV_A_ &w->fork); |
2486 | |
4053 | |
2487 | ev_stop (EV_A_ (W)w); |
4054 | ev_stop (EV_A_ (W)w); |
|
|
4055 | |
|
|
4056 | EV_FREQUENT_CHECK; |
2488 | } |
4057 | } |
2489 | #endif |
4058 | #endif |
2490 | |
4059 | |
2491 | #if EV_FORK_ENABLE |
4060 | #if EV_FORK_ENABLE |
2492 | void |
4061 | void |
2493 | ev_fork_start (EV_P_ ev_fork *w) |
4062 | ev_fork_start (EV_P_ ev_fork *w) |
2494 | { |
4063 | { |
2495 | if (expect_false (ev_is_active (w))) |
4064 | if (expect_false (ev_is_active (w))) |
2496 | return; |
4065 | return; |
2497 | |
4066 | |
|
|
4067 | EV_FREQUENT_CHECK; |
|
|
4068 | |
2498 | ev_start (EV_A_ (W)w, ++forkcnt); |
4069 | ev_start (EV_A_ (W)w, ++forkcnt); |
2499 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4070 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2500 | forks [forkcnt - 1] = w; |
4071 | forks [forkcnt - 1] = w; |
|
|
4072 | |
|
|
4073 | EV_FREQUENT_CHECK; |
2501 | } |
4074 | } |
2502 | |
4075 | |
2503 | void |
4076 | void |
2504 | ev_fork_stop (EV_P_ ev_fork *w) |
4077 | ev_fork_stop (EV_P_ ev_fork *w) |
2505 | { |
4078 | { |
2506 | clear_pending (EV_A_ (W)w); |
4079 | clear_pending (EV_A_ (W)w); |
2507 | if (expect_false (!ev_is_active (w))) |
4080 | if (expect_false (!ev_is_active (w))) |
2508 | return; |
4081 | return; |
2509 | |
4082 | |
|
|
4083 | EV_FREQUENT_CHECK; |
|
|
4084 | |
2510 | { |
4085 | { |
2511 | int active = ((W)w)->active; |
4086 | int active = ev_active (w); |
|
|
4087 | |
2512 | forks [active - 1] = forks [--forkcnt]; |
4088 | forks [active - 1] = forks [--forkcnt]; |
2513 | ((W)forks [active - 1])->active = active; |
4089 | ev_active (forks [active - 1]) = active; |
2514 | } |
4090 | } |
2515 | |
4091 | |
2516 | ev_stop (EV_A_ (W)w); |
4092 | ev_stop (EV_A_ (W)w); |
|
|
4093 | |
|
|
4094 | EV_FREQUENT_CHECK; |
|
|
4095 | } |
|
|
4096 | #endif |
|
|
4097 | |
|
|
4098 | #if EV_CLEANUP_ENABLE |
|
|
4099 | void |
|
|
4100 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
4101 | { |
|
|
4102 | if (expect_false (ev_is_active (w))) |
|
|
4103 | return; |
|
|
4104 | |
|
|
4105 | EV_FREQUENT_CHECK; |
|
|
4106 | |
|
|
4107 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4108 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4109 | cleanups [cleanupcnt - 1] = w; |
|
|
4110 | |
|
|
4111 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4112 | ev_unref (EV_A); |
|
|
4113 | EV_FREQUENT_CHECK; |
|
|
4114 | } |
|
|
4115 | |
|
|
4116 | void |
|
|
4117 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
4118 | { |
|
|
4119 | clear_pending (EV_A_ (W)w); |
|
|
4120 | if (expect_false (!ev_is_active (w))) |
|
|
4121 | return; |
|
|
4122 | |
|
|
4123 | EV_FREQUENT_CHECK; |
|
|
4124 | ev_ref (EV_A); |
|
|
4125 | |
|
|
4126 | { |
|
|
4127 | int active = ev_active (w); |
|
|
4128 | |
|
|
4129 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4130 | ev_active (cleanups [active - 1]) = active; |
|
|
4131 | } |
|
|
4132 | |
|
|
4133 | ev_stop (EV_A_ (W)w); |
|
|
4134 | |
|
|
4135 | EV_FREQUENT_CHECK; |
2517 | } |
4136 | } |
2518 | #endif |
4137 | #endif |
2519 | |
4138 | |
2520 | #if EV_ASYNC_ENABLE |
4139 | #if EV_ASYNC_ENABLE |
2521 | void |
4140 | void |
2522 | ev_async_start (EV_P_ ev_async *w) |
4141 | ev_async_start (EV_P_ ev_async *w) |
2523 | { |
4142 | { |
2524 | if (expect_false (ev_is_active (w))) |
4143 | if (expect_false (ev_is_active (w))) |
2525 | return; |
4144 | return; |
2526 | |
4145 | |
|
|
4146 | w->sent = 0; |
|
|
4147 | |
2527 | evpipe_init (EV_A); |
4148 | evpipe_init (EV_A); |
|
|
4149 | |
|
|
4150 | EV_FREQUENT_CHECK; |
2528 | |
4151 | |
2529 | ev_start (EV_A_ (W)w, ++asynccnt); |
4152 | ev_start (EV_A_ (W)w, ++asynccnt); |
2530 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4153 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2531 | asyncs [asynccnt - 1] = w; |
4154 | asyncs [asynccnt - 1] = w; |
|
|
4155 | |
|
|
4156 | EV_FREQUENT_CHECK; |
2532 | } |
4157 | } |
2533 | |
4158 | |
2534 | void |
4159 | void |
2535 | ev_async_stop (EV_P_ ev_async *w) |
4160 | ev_async_stop (EV_P_ ev_async *w) |
2536 | { |
4161 | { |
2537 | clear_pending (EV_A_ (W)w); |
4162 | clear_pending (EV_A_ (W)w); |
2538 | if (expect_false (!ev_is_active (w))) |
4163 | if (expect_false (!ev_is_active (w))) |
2539 | return; |
4164 | return; |
2540 | |
4165 | |
|
|
4166 | EV_FREQUENT_CHECK; |
|
|
4167 | |
2541 | { |
4168 | { |
2542 | int active = ((W)w)->active; |
4169 | int active = ev_active (w); |
|
|
4170 | |
2543 | asyncs [active - 1] = asyncs [--asynccnt]; |
4171 | asyncs [active - 1] = asyncs [--asynccnt]; |
2544 | ((W)asyncs [active - 1])->active = active; |
4172 | ev_active (asyncs [active - 1]) = active; |
2545 | } |
4173 | } |
2546 | |
4174 | |
2547 | ev_stop (EV_A_ (W)w); |
4175 | ev_stop (EV_A_ (W)w); |
|
|
4176 | |
|
|
4177 | EV_FREQUENT_CHECK; |
2548 | } |
4178 | } |
2549 | |
4179 | |
2550 | void |
4180 | void |
2551 | ev_async_send (EV_P_ ev_async *w) |
4181 | ev_async_send (EV_P_ ev_async *w) |
2552 | { |
4182 | { |
2553 | w->sent = 1; |
4183 | w->sent = 1; |
2554 | evpipe_write (EV_A_ &gotasync); |
4184 | evpipe_write (EV_A_ &async_pending); |
2555 | } |
4185 | } |
2556 | #endif |
4186 | #endif |
2557 | |
4187 | |
2558 | /*****************************************************************************/ |
4188 | /*****************************************************************************/ |
2559 | |
4189 | |
… | |
… | |
2569 | once_cb (EV_P_ struct ev_once *once, int revents) |
4199 | once_cb (EV_P_ struct ev_once *once, int revents) |
2570 | { |
4200 | { |
2571 | void (*cb)(int revents, void *arg) = once->cb; |
4201 | void (*cb)(int revents, void *arg) = once->cb; |
2572 | void *arg = once->arg; |
4202 | void *arg = once->arg; |
2573 | |
4203 | |
2574 | ev_io_stop (EV_A_ &once->io); |
4204 | ev_io_stop (EV_A_ &once->io); |
2575 | ev_timer_stop (EV_A_ &once->to); |
4205 | ev_timer_stop (EV_A_ &once->to); |
2576 | ev_free (once); |
4206 | ev_free (once); |
2577 | |
4207 | |
2578 | cb (revents, arg); |
4208 | cb (revents, arg); |
2579 | } |
4209 | } |
2580 | |
4210 | |
2581 | static void |
4211 | static void |
2582 | once_cb_io (EV_P_ ev_io *w, int revents) |
4212 | once_cb_io (EV_P_ ev_io *w, int revents) |
2583 | { |
4213 | { |
2584 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
4214 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
4215 | |
|
|
4216 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2585 | } |
4217 | } |
2586 | |
4218 | |
2587 | static void |
4219 | static void |
2588 | once_cb_to (EV_P_ ev_timer *w, int revents) |
4220 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2589 | { |
4221 | { |
2590 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
4222 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
4223 | |
|
|
4224 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2591 | } |
4225 | } |
2592 | |
4226 | |
2593 | void |
4227 | void |
2594 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4228 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2595 | { |
4229 | { |
2596 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4230 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2597 | |
4231 | |
2598 | if (expect_false (!once)) |
4232 | if (expect_false (!once)) |
2599 | { |
4233 | { |
2600 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4234 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2601 | return; |
4235 | return; |
2602 | } |
4236 | } |
2603 | |
4237 | |
2604 | once->cb = cb; |
4238 | once->cb = cb; |
2605 | once->arg = arg; |
4239 | once->arg = arg; |
… | |
… | |
2617 | ev_timer_set (&once->to, timeout, 0.); |
4251 | ev_timer_set (&once->to, timeout, 0.); |
2618 | ev_timer_start (EV_A_ &once->to); |
4252 | ev_timer_start (EV_A_ &once->to); |
2619 | } |
4253 | } |
2620 | } |
4254 | } |
2621 | |
4255 | |
|
|
4256 | /*****************************************************************************/ |
|
|
4257 | |
|
|
4258 | #if EV_WALK_ENABLE |
|
|
4259 | void ecb_cold |
|
|
4260 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
4261 | { |
|
|
4262 | int i, j; |
|
|
4263 | ev_watcher_list *wl, *wn; |
|
|
4264 | |
|
|
4265 | if (types & (EV_IO | EV_EMBED)) |
|
|
4266 | for (i = 0; i < anfdmax; ++i) |
|
|
4267 | for (wl = anfds [i].head; wl; ) |
|
|
4268 | { |
|
|
4269 | wn = wl->next; |
|
|
4270 | |
|
|
4271 | #if EV_EMBED_ENABLE |
|
|
4272 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
4273 | { |
|
|
4274 | if (types & EV_EMBED) |
|
|
4275 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
4276 | } |
|
|
4277 | else |
|
|
4278 | #endif |
|
|
4279 | #if EV_USE_INOTIFY |
|
|
4280 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4281 | ; |
|
|
4282 | else |
|
|
4283 | #endif |
|
|
4284 | if ((ev_io *)wl != &pipe_w) |
|
|
4285 | if (types & EV_IO) |
|
|
4286 | cb (EV_A_ EV_IO, wl); |
|
|
4287 | |
|
|
4288 | wl = wn; |
|
|
4289 | } |
|
|
4290 | |
|
|
4291 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4292 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4293 | #if EV_STAT_ENABLE |
|
|
4294 | /*TODO: timer is not always active*/ |
|
|
4295 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4296 | { |
|
|
4297 | if (types & EV_STAT) |
|
|
4298 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4299 | } |
|
|
4300 | else |
|
|
4301 | #endif |
|
|
4302 | if (types & EV_TIMER) |
|
|
4303 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4304 | |
|
|
4305 | #if EV_PERIODIC_ENABLE |
|
|
4306 | if (types & EV_PERIODIC) |
|
|
4307 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4308 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4309 | #endif |
|
|
4310 | |
|
|
4311 | #if EV_IDLE_ENABLE |
|
|
4312 | if (types & EV_IDLE) |
|
|
4313 | for (j = NUMPRI; j--; ) |
|
|
4314 | for (i = idlecnt [j]; i--; ) |
|
|
4315 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4316 | #endif |
|
|
4317 | |
|
|
4318 | #if EV_FORK_ENABLE |
|
|
4319 | if (types & EV_FORK) |
|
|
4320 | for (i = forkcnt; i--; ) |
|
|
4321 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4322 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4323 | #endif |
|
|
4324 | |
|
|
4325 | #if EV_ASYNC_ENABLE |
|
|
4326 | if (types & EV_ASYNC) |
|
|
4327 | for (i = asynccnt; i--; ) |
|
|
4328 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4329 | #endif |
|
|
4330 | |
|
|
4331 | #if EV_PREPARE_ENABLE |
|
|
4332 | if (types & EV_PREPARE) |
|
|
4333 | for (i = preparecnt; i--; ) |
|
|
4334 | # if EV_EMBED_ENABLE |
|
|
4335 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4336 | # endif |
|
|
4337 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4338 | #endif |
|
|
4339 | |
|
|
4340 | #if EV_CHECK_ENABLE |
|
|
4341 | if (types & EV_CHECK) |
|
|
4342 | for (i = checkcnt; i--; ) |
|
|
4343 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4344 | #endif |
|
|
4345 | |
|
|
4346 | #if EV_SIGNAL_ENABLE |
|
|
4347 | if (types & EV_SIGNAL) |
|
|
4348 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4349 | for (wl = signals [i].head; wl; ) |
|
|
4350 | { |
|
|
4351 | wn = wl->next; |
|
|
4352 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4353 | wl = wn; |
|
|
4354 | } |
|
|
4355 | #endif |
|
|
4356 | |
|
|
4357 | #if EV_CHILD_ENABLE |
|
|
4358 | if (types & EV_CHILD) |
|
|
4359 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4360 | for (wl = childs [i]; wl; ) |
|
|
4361 | { |
|
|
4362 | wn = wl->next; |
|
|
4363 | cb (EV_A_ EV_CHILD, wl); |
|
|
4364 | wl = wn; |
|
|
4365 | } |
|
|
4366 | #endif |
|
|
4367 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4368 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4369 | } |
|
|
4370 | #endif |
|
|
4371 | |
2622 | #if EV_MULTIPLICITY |
4372 | #if EV_MULTIPLICITY |
2623 | #include "ev_wrap.h" |
4373 | #include "ev_wrap.h" |
2624 | #endif |
4374 | #endif |
2625 | |
4375 | |
2626 | #ifdef __cplusplus |
4376 | EV_CPP(}) |
2627 | } |
|
|
2628 | #endif |
|
|
2629 | |
4377 | |