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 |
40 | /* this big block deduces configuration from config.h */ |
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
45 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
46 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
47 | # else |
44 | # else |
48 | # include "config.h" |
45 | # include "config.h" |
49 | # endif |
46 | # endif |
50 | |
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 | |
51 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
52 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
53 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
54 | # endif |
71 | # endif |
55 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
56 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
57 | # endif |
74 | # endif |
58 | # else |
75 | # else |
59 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
60 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
61 | # endif |
78 | # endif |
62 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
63 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
64 | # endif |
81 | # endif |
65 | # endif |
82 | # endif |
66 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
67 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
68 | # if HAVE_NANOSLEEP |
|
|
69 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
70 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
71 | # 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 |
72 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
73 | # endif |
100 | # endif |
74 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
75 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
77 | # define EV_USE_SELECT 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_SELECT 0 |
|
|
80 | # endif |
105 | # endif |
81 | # endif |
|
|
82 | |
|
|
83 | # ifndef EV_USE_POLL |
|
|
84 | # if HAVE_POLL && HAVE_POLL_H |
|
|
85 | # define EV_USE_POLL 1 |
|
|
86 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
87 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
88 | # endif |
|
|
89 | # endif |
109 | # endif |
90 | |
110 | |
91 | # ifndef EV_USE_EPOLL |
|
|
92 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
93 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
94 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
95 | # define EV_USE_EPOLL 0 |
|
|
96 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
97 | # endif |
118 | # endif |
98 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
99 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
100 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
101 | # define EV_USE_KQUEUE 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_KQUEUE 0 |
|
|
104 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
105 | # endif |
127 | # endif |
106 | |
128 | |
107 | # ifndef EV_USE_PORT |
|
|
108 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
109 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
110 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
111 | # define EV_USE_PORT 0 |
|
|
112 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
113 | # endif |
136 | # endif |
114 | |
137 | |
115 | # ifndef EV_USE_INOTIFY |
|
|
116 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
117 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
118 | # else |
|
|
119 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
120 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
121 | # endif |
145 | # endif |
122 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
148 | # ifndef EV_USE_SIGNALFD |
|
|
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
123 | #endif |
154 | # endif |
124 | |
155 | |
125 | #include <math.h> |
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 |
|
|
163 | # endif |
|
|
164 | |
|
|
165 | #endif |
|
|
166 | |
126 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
127 | #include <fcntl.h> |
169 | #include <fcntl.h> |
128 | #include <stddef.h> |
170 | #include <stddef.h> |
129 | |
171 | |
130 | #include <stdio.h> |
172 | #include <stdio.h> |
131 | |
173 | |
132 | #include <assert.h> |
174 | #include <assert.h> |
133 | #include <errno.h> |
175 | #include <errno.h> |
134 | #include <sys/types.h> |
176 | #include <sys/types.h> |
135 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
136 | |
179 | |
137 | #include <signal.h> |
180 | #include <signal.h> |
138 | |
181 | |
139 | #ifdef EV_H |
182 | #ifdef EV_H |
140 | # include EV_H |
183 | # include EV_H |
141 | #else |
184 | #else |
142 | # include "ev.h" |
185 | # include "ev.h" |
143 | #endif |
186 | #endif |
|
|
187 | |
|
|
188 | EV_CPP(extern "C" {) |
144 | |
189 | |
145 | #ifndef _WIN32 |
190 | #ifndef _WIN32 |
146 | # include <sys/time.h> |
191 | # include <sys/time.h> |
147 | # include <sys/wait.h> |
192 | # include <sys/wait.h> |
148 | # include <unistd.h> |
193 | # include <unistd.h> |
149 | #else |
194 | #else |
|
|
195 | # include <io.h> |
150 | # define WIN32_LEAN_AND_MEAN |
196 | # define WIN32_LEAN_AND_MEAN |
151 | # include <windows.h> |
197 | # include <windows.h> |
152 | # ifndef EV_SELECT_IS_WINSOCKET |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
153 | # define EV_SELECT_IS_WINSOCKET 1 |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
154 | # endif |
200 | # endif |
|
|
201 | # undef EV_AVOID_STDIO |
|
|
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 |
|
|
211 | |
|
|
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
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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) |
|
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228 | # define EV_NSIG (MAXSIG+1) |
|
|
229 | #elif defined (MAX_SIG) |
|
|
230 | # define EV_NSIG (MAX_SIG+1) |
|
|
231 | #elif defined (SIGARRAYSIZE) |
|
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232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
233 | #elif defined (_sys_nsig) |
|
|
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
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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 |
155 | #endif |
251 | # endif |
156 | |
252 | #endif |
157 | /**/ |
|
|
158 | |
253 | |
159 | #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 |
160 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
|
|
259 | # endif |
161 | #endif |
260 | #endif |
162 | |
261 | |
163 | #ifndef EV_USE_REALTIME |
262 | #ifndef EV_USE_REALTIME |
164 | # define EV_USE_REALTIME 0 |
263 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
165 | #endif |
264 | #endif |
166 | |
265 | |
167 | #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 |
168 | # define EV_USE_NANOSLEEP 0 |
270 | # define EV_USE_NANOSLEEP 0 |
|
|
271 | # endif |
169 | #endif |
272 | #endif |
170 | |
273 | |
171 | #ifndef EV_USE_SELECT |
274 | #ifndef EV_USE_SELECT |
172 | # define EV_USE_SELECT 1 |
275 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
173 | #endif |
276 | #endif |
174 | |
277 | |
175 | #ifndef EV_USE_POLL |
278 | #ifndef EV_USE_POLL |
176 | # ifdef _WIN32 |
279 | # ifdef _WIN32 |
177 | # define EV_USE_POLL 0 |
280 | # define EV_USE_POLL 0 |
178 | # else |
281 | # else |
179 | # define EV_USE_POLL 1 |
282 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
180 | # endif |
283 | # endif |
181 | #endif |
284 | #endif |
182 | |
285 | |
183 | #ifndef EV_USE_EPOLL |
286 | #ifndef EV_USE_EPOLL |
|
|
287 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
288 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
|
|
289 | # else |
184 | # define EV_USE_EPOLL 0 |
290 | # define EV_USE_EPOLL 0 |
|
|
291 | # endif |
185 | #endif |
292 | #endif |
186 | |
293 | |
187 | #ifndef EV_USE_KQUEUE |
294 | #ifndef EV_USE_KQUEUE |
188 | # define EV_USE_KQUEUE 0 |
295 | # define EV_USE_KQUEUE 0 |
189 | #endif |
296 | #endif |
… | |
… | |
191 | #ifndef EV_USE_PORT |
298 | #ifndef EV_USE_PORT |
192 | # define EV_USE_PORT 0 |
299 | # define EV_USE_PORT 0 |
193 | #endif |
300 | #endif |
194 | |
301 | |
195 | #ifndef EV_USE_INOTIFY |
302 | #ifndef EV_USE_INOTIFY |
|
|
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
|
|
305 | # else |
196 | # define EV_USE_INOTIFY 0 |
306 | # define EV_USE_INOTIFY 0 |
|
|
307 | # endif |
197 | #endif |
308 | #endif |
198 | |
309 | |
199 | #ifndef EV_PID_HASHSIZE |
310 | #ifndef EV_PID_HASHSIZE |
200 | # if EV_MINIMAL |
311 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
201 | # define EV_PID_HASHSIZE 1 |
312 | #endif |
|
|
313 | |
|
|
314 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
315 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
|
|
316 | #endif |
|
|
317 | |
|
|
318 | #ifndef EV_USE_EVENTFD |
|
|
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
320 | # define EV_USE_EVENTFD EV_FEATURE_OS |
202 | # else |
321 | # else |
203 | # define EV_PID_HASHSIZE 16 |
322 | # define EV_USE_EVENTFD 0 |
204 | # endif |
323 | # endif |
205 | #endif |
324 | #endif |
206 | |
325 | |
207 | #ifndef EV_INOTIFY_HASHSIZE |
326 | #ifndef EV_USE_SIGNALFD |
208 | # if EV_MINIMAL |
327 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
209 | # define EV_INOTIFY_HASHSIZE 1 |
328 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
210 | # else |
329 | # else |
211 | # define EV_INOTIFY_HASHSIZE 16 |
330 | # define EV_USE_SIGNALFD 0 |
212 | # endif |
331 | # endif |
213 | #endif |
332 | #endif |
214 | |
333 | |
215 | /**/ |
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 | |
|
|
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 |
216 | |
373 | |
217 | #ifndef CLOCK_MONOTONIC |
374 | #ifndef CLOCK_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
219 | # define EV_USE_MONOTONIC 0 |
376 | # define EV_USE_MONOTONIC 0 |
220 | #endif |
377 | #endif |
… | |
… | |
228 | # undef EV_USE_INOTIFY |
385 | # undef EV_USE_INOTIFY |
229 | # define EV_USE_INOTIFY 0 |
386 | # define EV_USE_INOTIFY 0 |
230 | #endif |
387 | #endif |
231 | |
388 | |
232 | #if !EV_USE_NANOSLEEP |
389 | #if !EV_USE_NANOSLEEP |
233 | # ifndef _WIN32 |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
391 | # if !defined(_WIN32) && !defined(__hpux) |
234 | # include <sys/select.h> |
392 | # include <sys/select.h> |
235 | # endif |
393 | # endif |
236 | #endif |
394 | #endif |
237 | |
395 | |
238 | #if EV_USE_INOTIFY |
396 | #if EV_USE_INOTIFY |
|
|
397 | # include <sys/statfs.h> |
239 | # 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 |
240 | #endif |
404 | #endif |
241 | |
405 | |
242 | #if EV_SELECT_IS_WINSOCKET |
406 | #if EV_SELECT_IS_WINSOCKET |
243 | # include <winsock.h> |
407 | # include <winsock.h> |
244 | #endif |
408 | #endif |
245 | |
409 | |
|
|
410 | #if EV_USE_EVENTFD |
|
|
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
412 | # include <stdint.h> |
|
|
413 | # ifndef EFD_NONBLOCK |
|
|
414 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
415 | # endif |
|
|
416 | # ifndef EFD_CLOEXEC |
|
|
417 | # ifdef O_CLOEXEC |
|
|
418 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
419 | # else |
|
|
420 | # define EFD_CLOEXEC 02000000 |
|
|
421 | # 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 | }; |
|
|
446 | #endif |
|
|
447 | |
246 | /**/ |
448 | /**/ |
247 | |
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 | |
248 | /* |
456 | /* |
249 | * This is used to avoid floating point rounding problems. |
457 | * This is used to work around floating point rounding problems. |
250 | * It is added to ev_rt_now when scheduling periodics |
|
|
251 | * to ensure progress, time-wise, even when rounding |
|
|
252 | * errors are against us. |
|
|
253 | * This value is good at least till the year 4000. |
458 | * This value is good at least till the year 4000. |
254 | * Better solutions welcome. |
|
|
255 | */ |
459 | */ |
256 | #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 */ |
257 | |
462 | |
258 | #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) */ |
259 | #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) */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
261 | |
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; |
262 | #if __GNUC__ >= 4 |
510 | #if __GNUC__ |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
511 | typedef signed long long int64_t; |
264 | # 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 |
265 | #else |
517 | #else |
266 | # define expect(expr,value) (expr) |
518 | #include <inttypes.h> |
267 | # define noinline |
|
|
268 | # if __STDC_VERSION__ < 199901L |
|
|
269 | # define inline |
|
|
270 | # 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))) |
271 | #endif |
533 | #endif |
|
|
534 | #endif |
272 | |
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 | #endif |
|
|
544 | |
|
|
545 | #ifndef ECB_MEMORY_FENCE |
|
|
546 | #if ECB_GCC_VERSION(2,5) |
|
|
547 | #if __i386__ |
|
|
548 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
549 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
550 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
551 | #elif __amd64 |
|
|
552 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
553 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
554 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
555 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
556 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
557 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
|
|
558 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
|
|
559 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
560 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
|
|
561 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
|
|
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
563 | #endif |
|
|
564 | #endif |
|
|
565 | #endif |
|
|
566 | |
|
|
567 | #ifndef ECB_MEMORY_FENCE |
|
|
568 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) |
|
|
569 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
570 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
571 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
572 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
573 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
574 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
575 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
576 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
577 | #elif defined(_WIN32) |
|
|
578 | #include <WinNT.h> |
|
|
579 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
580 | #endif |
|
|
581 | #endif |
|
|
582 | |
|
|
583 | #ifndef ECB_MEMORY_FENCE |
|
|
584 | #if !ECB_AVOID_PTHREADS |
|
|
585 | /* |
|
|
586 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
587 | * or failure to find pthread.h, then you should implement |
|
|
588 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
589 | * OR provide pthread.h and link against the posix thread library |
|
|
590 | * of your system. |
|
|
591 | */ |
|
|
592 | #include <pthread.h> |
|
|
593 | #define ECB_NEEDS_PTHREADS 1 |
|
|
594 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
595 | |
|
|
596 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
597 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
598 | #endif |
|
|
599 | #endif |
|
|
600 | |
|
|
601 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
602 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
603 | #endif |
|
|
604 | |
|
|
605 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
606 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
607 | #endif |
|
|
608 | |
|
|
609 | /*****************************************************************************/ |
|
|
610 | |
|
|
611 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
612 | |
|
|
613 | #if __cplusplus |
|
|
614 | #define ecb_inline static inline |
|
|
615 | #elif ECB_GCC_VERSION(2,5) |
|
|
616 | #define ecb_inline static __inline__ |
|
|
617 | #elif ECB_C99 |
|
|
618 | #define ecb_inline static inline |
|
|
619 | #else |
|
|
620 | #define ecb_inline static |
|
|
621 | #endif |
|
|
622 | |
|
|
623 | #if ECB_GCC_VERSION(3,3) |
|
|
624 | #define ecb_restrict __restrict__ |
|
|
625 | #elif ECB_C99 |
|
|
626 | #define ecb_restrict restrict |
|
|
627 | #else |
|
|
628 | #define ecb_restrict |
|
|
629 | #endif |
|
|
630 | |
|
|
631 | typedef int ecb_bool; |
|
|
632 | |
|
|
633 | #define ECB_CONCAT_(a, b) a ## b |
|
|
634 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
635 | #define ECB_STRINGIFY_(a) # a |
|
|
636 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
637 | |
|
|
638 | #define ecb_function_ ecb_inline |
|
|
639 | |
|
|
640 | #if ECB_GCC_VERSION(3,1) |
|
|
641 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
642 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
643 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
644 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
645 | #else |
|
|
646 | #define ecb_attribute(attrlist) |
|
|
647 | #define ecb_is_constant(expr) 0 |
|
|
648 | #define ecb_expect(expr,value) (expr) |
|
|
649 | #define ecb_prefetch(addr,rw,locality) |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | /* no emulation for ecb_decltype */ |
|
|
653 | #if ECB_GCC_VERSION(4,5) |
|
|
654 | #define ecb_decltype(x) __decltype(x) |
|
|
655 | #elif ECB_GCC_VERSION(3,0) |
|
|
656 | #define ecb_decltype(x) __typeof(x) |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
660 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
661 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
662 | #define ecb_const ecb_attribute ((__const__)) |
|
|
663 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
664 | |
|
|
665 | #if ECB_GCC_VERSION(4,3) |
|
|
666 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
667 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
668 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
669 | #else |
|
|
670 | #define ecb_artificial |
|
|
671 | #define ecb_hot |
|
|
672 | #define ecb_cold |
|
|
673 | #endif |
|
|
674 | |
|
|
675 | /* put around conditional expressions if you are very sure that the */ |
|
|
676 | /* expression is mostly true or mostly false. note that these return */ |
|
|
677 | /* booleans, not the expression. */ |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
678 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
679 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
680 | /* for compatibility to the rest of the world */ |
|
|
681 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
682 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
683 | |
|
|
684 | /* count trailing zero bits and count # of one bits */ |
|
|
685 | #if ECB_GCC_VERSION(3,4) |
|
|
686 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
687 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
688 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
689 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
690 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
691 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
692 | /* no popcountll */ |
|
|
693 | #else |
|
|
694 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
695 | ecb_function_ int |
|
|
696 | ecb_ctz32 (uint32_t x) |
|
|
697 | { |
|
|
698 | int r = 0; |
|
|
699 | |
|
|
700 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
701 | |
|
|
702 | #if ECB_branchless_on_i386 |
|
|
703 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
704 | r += !!(x & 0xcccccccc) << 1; |
|
|
705 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
706 | r += !!(x & 0xff00ff00) << 3; |
|
|
707 | r += !!(x & 0xffff0000) << 4; |
|
|
708 | #else |
|
|
709 | if (x & 0xaaaaaaaa) r += 1; |
|
|
710 | if (x & 0xcccccccc) r += 2; |
|
|
711 | if (x & 0xf0f0f0f0) r += 4; |
|
|
712 | if (x & 0xff00ff00) r += 8; |
|
|
713 | if (x & 0xffff0000) r += 16; |
|
|
714 | #endif |
|
|
715 | |
|
|
716 | return r; |
|
|
717 | } |
|
|
718 | |
|
|
719 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
720 | ecb_function_ int |
|
|
721 | ecb_ctz64 (uint64_t x) |
|
|
722 | { |
|
|
723 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
724 | return ecb_ctz32 (x >> shift) + shift; |
|
|
725 | } |
|
|
726 | |
|
|
727 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
728 | ecb_function_ int |
|
|
729 | ecb_popcount32 (uint32_t x) |
|
|
730 | { |
|
|
731 | x -= (x >> 1) & 0x55555555; |
|
|
732 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
733 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
734 | x *= 0x01010101; |
|
|
735 | |
|
|
736 | return x >> 24; |
|
|
737 | } |
|
|
738 | |
|
|
739 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
740 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
741 | { |
|
|
742 | int r = 0; |
|
|
743 | |
|
|
744 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
745 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
746 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
747 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
748 | if (x >> 1) { r += 1; } |
|
|
749 | |
|
|
750 | return r; |
|
|
751 | } |
|
|
752 | |
|
|
753 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
754 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
755 | { |
|
|
756 | int r = 0; |
|
|
757 | |
|
|
758 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
759 | |
|
|
760 | return r + ecb_ld32 (x); |
|
|
761 | } |
|
|
762 | #endif |
|
|
763 | |
|
|
764 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
765 | /* so for this version we are lazy */ |
|
|
766 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
767 | ecb_function_ int |
|
|
768 | ecb_popcount64 (uint64_t x) |
|
|
769 | { |
|
|
770 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
771 | } |
|
|
772 | |
|
|
773 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
774 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
775 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
776 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
777 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
778 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
779 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
780 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
781 | |
|
|
782 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
783 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
784 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
785 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
786 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
787 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
788 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
789 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
790 | |
|
|
791 | #if ECB_GCC_VERSION(4,3) |
|
|
792 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
793 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
794 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
795 | #else |
|
|
796 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
797 | ecb_function_ uint16_t |
|
|
798 | ecb_bswap16 (uint16_t x) |
|
|
799 | { |
|
|
800 | return ecb_rotl16 (x, 8); |
|
|
801 | } |
|
|
802 | |
|
|
803 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
804 | ecb_function_ uint32_t |
|
|
805 | ecb_bswap32 (uint32_t x) |
|
|
806 | { |
|
|
807 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
808 | } |
|
|
809 | |
|
|
810 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
811 | ecb_function_ uint64_t |
|
|
812 | ecb_bswap64 (uint64_t x) |
|
|
813 | { |
|
|
814 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
815 | } |
|
|
816 | #endif |
|
|
817 | |
|
|
818 | #if ECB_GCC_VERSION(4,5) |
|
|
819 | #define ecb_unreachable() __builtin_unreachable () |
|
|
820 | #else |
|
|
821 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
822 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
|
|
823 | ecb_function_ void ecb_unreachable (void) { } |
|
|
824 | #endif |
|
|
825 | |
|
|
826 | /* try to tell the compiler that some condition is definitely true */ |
|
|
827 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
828 | |
|
|
829 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
830 | ecb_function_ unsigned char |
|
|
831 | ecb_byteorder_helper (void) |
|
|
832 | { |
|
|
833 | const uint32_t u = 0x11223344; |
|
|
834 | return *(unsigned char *)&u; |
|
|
835 | } |
|
|
836 | |
|
|
837 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
|
|
838 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
839 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
|
|
840 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
841 | |
|
|
842 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
843 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
844 | #else |
|
|
845 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
846 | #endif |
|
|
847 | |
|
|
848 | #if ecb_cplusplus_does_not_suck |
|
|
849 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
850 | template<typename T, int N> |
|
|
851 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
852 | { |
|
|
853 | return N; |
|
|
854 | } |
|
|
855 | #else |
|
|
856 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | #endif |
|
|
860 | |
|
|
861 | /* ECB.H END */ |
|
|
862 | |
|
|
863 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
864 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
865 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
866 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
867 | * libev, in which casess the memory fences become nops. |
|
|
868 | * alternatively, you can remove this #error and link against libpthread, |
|
|
869 | * which will then provide the memory fences. |
|
|
870 | */ |
|
|
871 | # error "memory fences not defined for your architecture, please report" |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | #ifndef ECB_MEMORY_FENCE |
|
|
875 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
876 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
877 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
881 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
882 | #define noinline ecb_noinline |
|
|
883 | |
275 | #define inline_size static inline |
884 | #define inline_size ecb_inline |
276 | |
885 | |
277 | #if EV_MINIMAL |
886 | #if EV_FEATURE_CODE |
|
|
887 | # define inline_speed ecb_inline |
|
|
888 | #else |
278 | # define inline_speed static noinline |
889 | # define inline_speed static noinline |
|
|
890 | #endif |
|
|
891 | |
|
|
892 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
893 | |
|
|
894 | #if EV_MINPRI == EV_MAXPRI |
|
|
895 | # define ABSPRI(w) (((W)w), 0) |
279 | #else |
896 | #else |
280 | # define inline_speed static inline |
|
|
281 | #endif |
|
|
282 | |
|
|
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
897 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
898 | #endif |
285 | |
899 | |
286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
900 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
901 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
288 | |
902 | |
289 | typedef ev_watcher *W; |
903 | typedef ev_watcher *W; |
290 | typedef ev_watcher_list *WL; |
904 | typedef ev_watcher_list *WL; |
291 | typedef ev_watcher_time *WT; |
905 | typedef ev_watcher_time *WT; |
292 | |
906 | |
|
|
907 | #define ev_active(w) ((W)(w))->active |
|
|
908 | #define ev_at(w) ((WT)(w))->at |
|
|
909 | |
|
|
910 | #if EV_USE_REALTIME |
|
|
911 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
912 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
913 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
914 | #endif |
|
|
915 | |
293 | #if EV_USE_MONOTONIC |
916 | #if EV_USE_MONOTONIC |
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
296 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
917 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
918 | #endif |
|
|
919 | |
|
|
920 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
921 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
922 | #endif |
|
|
923 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
924 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
925 | #endif |
|
|
926 | #ifndef EV_WIN32_CLOSE_FD |
|
|
927 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
297 | #endif |
928 | #endif |
298 | |
929 | |
299 | #ifdef _WIN32 |
930 | #ifdef _WIN32 |
300 | # include "ev_win32.c" |
931 | # include "ev_win32.c" |
301 | #endif |
932 | #endif |
302 | |
933 | |
303 | /*****************************************************************************/ |
934 | /*****************************************************************************/ |
304 | |
935 | |
|
|
936 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
937 | |
|
|
938 | #if EV_USE_FLOOR |
|
|
939 | # include <math.h> |
|
|
940 | # define ev_floor(v) floor (v) |
|
|
941 | #else |
|
|
942 | |
|
|
943 | #include <float.h> |
|
|
944 | |
|
|
945 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
946 | static ev_tstamp noinline |
|
|
947 | ev_floor (ev_tstamp v) |
|
|
948 | { |
|
|
949 | /* the choice of shift factor is not terribly important */ |
|
|
950 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
951 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
952 | #else |
|
|
953 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | /* argument too large for an unsigned long? */ |
|
|
957 | if (expect_false (v >= shift)) |
|
|
958 | { |
|
|
959 | ev_tstamp f; |
|
|
960 | |
|
|
961 | if (v == v - 1.) |
|
|
962 | return v; /* very large number */ |
|
|
963 | |
|
|
964 | f = shift * ev_floor (v * (1. / shift)); |
|
|
965 | return f + ev_floor (v - f); |
|
|
966 | } |
|
|
967 | |
|
|
968 | /* special treatment for negative args? */ |
|
|
969 | if (expect_false (v < 0.)) |
|
|
970 | { |
|
|
971 | ev_tstamp f = -ev_floor (-v); |
|
|
972 | |
|
|
973 | return f - (f == v ? 0 : 1); |
|
|
974 | } |
|
|
975 | |
|
|
976 | /* fits into an unsigned long */ |
|
|
977 | return (unsigned long)v; |
|
|
978 | } |
|
|
979 | |
|
|
980 | #endif |
|
|
981 | |
|
|
982 | /*****************************************************************************/ |
|
|
983 | |
|
|
984 | #ifdef __linux |
|
|
985 | # include <sys/utsname.h> |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | static unsigned int noinline ecb_cold |
|
|
989 | ev_linux_version (void) |
|
|
990 | { |
|
|
991 | #ifdef __linux |
|
|
992 | unsigned int v = 0; |
|
|
993 | struct utsname buf; |
|
|
994 | int i; |
|
|
995 | char *p = buf.release; |
|
|
996 | |
|
|
997 | if (uname (&buf)) |
|
|
998 | return 0; |
|
|
999 | |
|
|
1000 | for (i = 3+1; --i; ) |
|
|
1001 | { |
|
|
1002 | unsigned int c = 0; |
|
|
1003 | |
|
|
1004 | for (;;) |
|
|
1005 | { |
|
|
1006 | if (*p >= '0' && *p <= '9') |
|
|
1007 | c = c * 10 + *p++ - '0'; |
|
|
1008 | else |
|
|
1009 | { |
|
|
1010 | p += *p == '.'; |
|
|
1011 | break; |
|
|
1012 | } |
|
|
1013 | } |
|
|
1014 | |
|
|
1015 | v = (v << 8) | c; |
|
|
1016 | } |
|
|
1017 | |
|
|
1018 | return v; |
|
|
1019 | #else |
|
|
1020 | return 0; |
|
|
1021 | #endif |
|
|
1022 | } |
|
|
1023 | |
|
|
1024 | /*****************************************************************************/ |
|
|
1025 | |
|
|
1026 | #if EV_AVOID_STDIO |
|
|
1027 | static void noinline ecb_cold |
|
|
1028 | ev_printerr (const char *msg) |
|
|
1029 | { |
|
|
1030 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1031 | } |
|
|
1032 | #endif |
|
|
1033 | |
305 | static void (*syserr_cb)(const char *msg); |
1034 | static void (*syserr_cb)(const char *msg); |
306 | |
1035 | |
307 | void |
1036 | void ecb_cold |
308 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1037 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
309 | { |
1038 | { |
310 | syserr_cb = cb; |
1039 | syserr_cb = cb; |
311 | } |
1040 | } |
312 | |
1041 | |
313 | static void noinline |
1042 | static void noinline ecb_cold |
314 | syserr (const char *msg) |
1043 | ev_syserr (const char *msg) |
315 | { |
1044 | { |
316 | if (!msg) |
1045 | if (!msg) |
317 | msg = "(libev) system error"; |
1046 | msg = "(libev) system error"; |
318 | |
1047 | |
319 | if (syserr_cb) |
1048 | if (syserr_cb) |
320 | syserr_cb (msg); |
1049 | syserr_cb (msg); |
321 | else |
1050 | else |
322 | { |
1051 | { |
|
|
1052 | #if EV_AVOID_STDIO |
|
|
1053 | ev_printerr (msg); |
|
|
1054 | ev_printerr (": "); |
|
|
1055 | ev_printerr (strerror (errno)); |
|
|
1056 | ev_printerr ("\n"); |
|
|
1057 | #else |
323 | perror (msg); |
1058 | perror (msg); |
|
|
1059 | #endif |
324 | abort (); |
1060 | abort (); |
325 | } |
1061 | } |
326 | } |
1062 | } |
327 | |
1063 | |
|
|
1064 | static void * |
|
|
1065 | ev_realloc_emul (void *ptr, long size) |
|
|
1066 | { |
|
|
1067 | #if __GLIBC__ |
|
|
1068 | return realloc (ptr, size); |
|
|
1069 | #else |
|
|
1070 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
1071 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
1072 | * the single unix specification, so work around them here. |
|
|
1073 | */ |
|
|
1074 | |
|
|
1075 | if (size) |
|
|
1076 | return realloc (ptr, size); |
|
|
1077 | |
|
|
1078 | free (ptr); |
|
|
1079 | return 0; |
|
|
1080 | #endif |
|
|
1081 | } |
|
|
1082 | |
328 | static void *(*alloc)(void *ptr, long size); |
1083 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
329 | |
1084 | |
330 | void |
1085 | void ecb_cold |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1086 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
332 | { |
1087 | { |
333 | alloc = cb; |
1088 | alloc = cb; |
334 | } |
1089 | } |
335 | |
1090 | |
336 | inline_speed void * |
1091 | inline_speed void * |
337 | ev_realloc (void *ptr, long size) |
1092 | ev_realloc (void *ptr, long size) |
338 | { |
1093 | { |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
1094 | ptr = alloc (ptr, size); |
340 | |
1095 | |
341 | if (!ptr && size) |
1096 | if (!ptr && size) |
342 | { |
1097 | { |
|
|
1098 | #if EV_AVOID_STDIO |
|
|
1099 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1100 | #else |
343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1101 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1102 | #endif |
344 | abort (); |
1103 | abort (); |
345 | } |
1104 | } |
346 | |
1105 | |
347 | return ptr; |
1106 | return ptr; |
348 | } |
1107 | } |
… | |
… | |
350 | #define ev_malloc(size) ev_realloc (0, (size)) |
1109 | #define ev_malloc(size) ev_realloc (0, (size)) |
351 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1110 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
352 | |
1111 | |
353 | /*****************************************************************************/ |
1112 | /*****************************************************************************/ |
354 | |
1113 | |
|
|
1114 | /* set in reify when reification needed */ |
|
|
1115 | #define EV_ANFD_REIFY 1 |
|
|
1116 | |
|
|
1117 | /* file descriptor info structure */ |
355 | typedef struct |
1118 | typedef struct |
356 | { |
1119 | { |
357 | WL head; |
1120 | WL head; |
358 | unsigned char events; |
1121 | unsigned char events; /* the events watched for */ |
|
|
1122 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1123 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
359 | unsigned char reify; |
1124 | unsigned char unused; |
|
|
1125 | #if EV_USE_EPOLL |
|
|
1126 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1127 | #endif |
360 | #if EV_SELECT_IS_WINSOCKET |
1128 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
361 | SOCKET handle; |
1129 | SOCKET handle; |
362 | #endif |
1130 | #endif |
|
|
1131 | #if EV_USE_IOCP |
|
|
1132 | OVERLAPPED or, ow; |
|
|
1133 | #endif |
363 | } ANFD; |
1134 | } ANFD; |
364 | |
1135 | |
|
|
1136 | /* stores the pending event set for a given watcher */ |
365 | typedef struct |
1137 | typedef struct |
366 | { |
1138 | { |
367 | W w; |
1139 | W w; |
368 | int events; |
1140 | int events; /* the pending event set for the given watcher */ |
369 | } ANPENDING; |
1141 | } ANPENDING; |
370 | |
1142 | |
371 | #if EV_USE_INOTIFY |
1143 | #if EV_USE_INOTIFY |
|
|
1144 | /* hash table entry per inotify-id */ |
372 | typedef struct |
1145 | typedef struct |
373 | { |
1146 | { |
374 | WL head; |
1147 | WL head; |
375 | } ANFS; |
1148 | } ANFS; |
|
|
1149 | #endif |
|
|
1150 | |
|
|
1151 | /* Heap Entry */ |
|
|
1152 | #if EV_HEAP_CACHE_AT |
|
|
1153 | /* a heap element */ |
|
|
1154 | typedef struct { |
|
|
1155 | ev_tstamp at; |
|
|
1156 | WT w; |
|
|
1157 | } ANHE; |
|
|
1158 | |
|
|
1159 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
1160 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
1161 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
1162 | #else |
|
|
1163 | /* a heap element */ |
|
|
1164 | typedef WT ANHE; |
|
|
1165 | |
|
|
1166 | #define ANHE_w(he) (he) |
|
|
1167 | #define ANHE_at(he) (he)->at |
|
|
1168 | #define ANHE_at_cache(he) |
376 | #endif |
1169 | #endif |
377 | |
1170 | |
378 | #if EV_MULTIPLICITY |
1171 | #if EV_MULTIPLICITY |
379 | |
1172 | |
380 | struct ev_loop |
1173 | struct ev_loop |
… | |
… | |
399 | |
1192 | |
400 | static int ev_default_loop_ptr; |
1193 | static int ev_default_loop_ptr; |
401 | |
1194 | |
402 | #endif |
1195 | #endif |
403 | |
1196 | |
|
|
1197 | #if EV_FEATURE_API |
|
|
1198 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1199 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1200 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1201 | #else |
|
|
1202 | # define EV_RELEASE_CB (void)0 |
|
|
1203 | # define EV_ACQUIRE_CB (void)0 |
|
|
1204 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1205 | #endif |
|
|
1206 | |
|
|
1207 | #define EVBREAK_RECURSE 0x80 |
|
|
1208 | |
404 | /*****************************************************************************/ |
1209 | /*****************************************************************************/ |
405 | |
1210 | |
|
|
1211 | #ifndef EV_HAVE_EV_TIME |
406 | ev_tstamp |
1212 | ev_tstamp |
407 | ev_time (void) |
1213 | ev_time (void) |
408 | { |
1214 | { |
409 | #if EV_USE_REALTIME |
1215 | #if EV_USE_REALTIME |
|
|
1216 | if (expect_true (have_realtime)) |
|
|
1217 | { |
410 | struct timespec ts; |
1218 | struct timespec ts; |
411 | clock_gettime (CLOCK_REALTIME, &ts); |
1219 | clock_gettime (CLOCK_REALTIME, &ts); |
412 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1220 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
413 | #else |
1221 | } |
|
|
1222 | #endif |
|
|
1223 | |
414 | struct timeval tv; |
1224 | struct timeval tv; |
415 | gettimeofday (&tv, 0); |
1225 | gettimeofday (&tv, 0); |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1226 | return tv.tv_sec + tv.tv_usec * 1e-6; |
417 | #endif |
|
|
418 | } |
1227 | } |
|
|
1228 | #endif |
419 | |
1229 | |
420 | ev_tstamp inline_size |
1230 | inline_size ev_tstamp |
421 | get_clock (void) |
1231 | get_clock (void) |
422 | { |
1232 | { |
423 | #if EV_USE_MONOTONIC |
1233 | #if EV_USE_MONOTONIC |
424 | if (expect_true (have_monotonic)) |
1234 | if (expect_true (have_monotonic)) |
425 | { |
1235 | { |
… | |
… | |
446 | if (delay > 0.) |
1256 | if (delay > 0.) |
447 | { |
1257 | { |
448 | #if EV_USE_NANOSLEEP |
1258 | #if EV_USE_NANOSLEEP |
449 | struct timespec ts; |
1259 | struct timespec ts; |
450 | |
1260 | |
451 | ts.tv_sec = (time_t)delay; |
1261 | EV_TS_SET (ts, delay); |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
453 | |
|
|
454 | nanosleep (&ts, 0); |
1262 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
1263 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
1264 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
1265 | #else |
458 | struct timeval tv; |
1266 | struct timeval tv; |
459 | |
1267 | |
460 | tv.tv_sec = (time_t)delay; |
1268 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
1269 | /* something not guaranteed by newer posix versions, but guaranteed */ |
462 | |
1270 | /* by older ones */ |
|
|
1271 | EV_TV_SET (tv, delay); |
463 | select (0, 0, 0, 0, &tv); |
1272 | select (0, 0, 0, 0, &tv); |
464 | #endif |
1273 | #endif |
465 | } |
1274 | } |
466 | } |
1275 | } |
467 | |
1276 | |
468 | /*****************************************************************************/ |
1277 | /*****************************************************************************/ |
469 | |
1278 | |
470 | int inline_size |
1279 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
1280 | |
|
|
1281 | /* find a suitable new size for the given array, */ |
|
|
1282 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1283 | inline_size int |
471 | array_nextsize (int elem, int cur, int cnt) |
1284 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
1285 | { |
473 | int ncur = cur + 1; |
1286 | int ncur = cur + 1; |
474 | |
1287 | |
475 | do |
1288 | do |
476 | ncur <<= 1; |
1289 | ncur <<= 1; |
477 | while (cnt > ncur); |
1290 | while (cnt > ncur); |
478 | |
1291 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
1292 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
1293 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
1294 | { |
482 | ncur *= elem; |
1295 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
1296 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
1297 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
1298 | ncur /= elem; |
486 | } |
1299 | } |
487 | |
1300 | |
488 | return ncur; |
1301 | return ncur; |
489 | } |
1302 | } |
490 | |
1303 | |
491 | static noinline void * |
1304 | static void * noinline ecb_cold |
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
1305 | array_realloc (int elem, void *base, int *cur, int cnt) |
493 | { |
1306 | { |
494 | *cur = array_nextsize (elem, *cur, cnt); |
1307 | *cur = array_nextsize (elem, *cur, cnt); |
495 | return ev_realloc (base, elem * *cur); |
1308 | return ev_realloc (base, elem * *cur); |
496 | } |
1309 | } |
|
|
1310 | |
|
|
1311 | #define array_init_zero(base,count) \ |
|
|
1312 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
497 | |
1313 | |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
1314 | #define array_needsize(type,base,cur,cnt,init) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
1315 | if (expect_false ((cnt) > (cur))) \ |
500 | { \ |
1316 | { \ |
501 | int ocur_ = (cur); \ |
1317 | int ecb_unused ocur_ = (cur); \ |
502 | (base) = (type *)array_realloc \ |
1318 | (base) = (type *)array_realloc \ |
503 | (sizeof (type), (base), &(cur), (cnt)); \ |
1319 | (sizeof (type), (base), &(cur), (cnt)); \ |
504 | init ((base) + (ocur_), (cur) - ocur_); \ |
1320 | init ((base) + (ocur_), (cur) - ocur_); \ |
505 | } |
1321 | } |
506 | |
1322 | |
… | |
… | |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1329 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
514 | } |
1330 | } |
515 | #endif |
1331 | #endif |
516 | |
1332 | |
517 | #define array_free(stem, idx) \ |
1333 | #define array_free(stem, idx) \ |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1334 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
519 | |
1335 | |
520 | /*****************************************************************************/ |
1336 | /*****************************************************************************/ |
|
|
1337 | |
|
|
1338 | /* dummy callback for pending events */ |
|
|
1339 | static void noinline |
|
|
1340 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1341 | { |
|
|
1342 | } |
521 | |
1343 | |
522 | void noinline |
1344 | void noinline |
523 | ev_feed_event (EV_P_ void *w, int revents) |
1345 | ev_feed_event (EV_P_ void *w, int revents) |
524 | { |
1346 | { |
525 | W w_ = (W)w; |
1347 | W w_ = (W)w; |
… | |
… | |
534 | pendings [pri][w_->pending - 1].w = w_; |
1356 | pendings [pri][w_->pending - 1].w = w_; |
535 | pendings [pri][w_->pending - 1].events = revents; |
1357 | pendings [pri][w_->pending - 1].events = revents; |
536 | } |
1358 | } |
537 | } |
1359 | } |
538 | |
1360 | |
539 | void inline_speed |
1361 | inline_speed void |
|
|
1362 | feed_reverse (EV_P_ W w) |
|
|
1363 | { |
|
|
1364 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1365 | rfeeds [rfeedcnt++] = w; |
|
|
1366 | } |
|
|
1367 | |
|
|
1368 | inline_size void |
|
|
1369 | feed_reverse_done (EV_P_ int revents) |
|
|
1370 | { |
|
|
1371 | do |
|
|
1372 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1373 | while (rfeedcnt); |
|
|
1374 | } |
|
|
1375 | |
|
|
1376 | inline_speed void |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1377 | queue_events (EV_P_ W *events, int eventcnt, int type) |
541 | { |
1378 | { |
542 | int i; |
1379 | int i; |
543 | |
1380 | |
544 | for (i = 0; i < eventcnt; ++i) |
1381 | for (i = 0; i < eventcnt; ++i) |
545 | ev_feed_event (EV_A_ events [i], type); |
1382 | ev_feed_event (EV_A_ events [i], type); |
546 | } |
1383 | } |
547 | |
1384 | |
548 | /*****************************************************************************/ |
1385 | /*****************************************************************************/ |
549 | |
1386 | |
550 | void inline_size |
1387 | inline_speed void |
551 | anfds_init (ANFD *base, int count) |
|
|
552 | { |
|
|
553 | while (count--) |
|
|
554 | { |
|
|
555 | base->head = 0; |
|
|
556 | base->events = EV_NONE; |
|
|
557 | base->reify = 0; |
|
|
558 | |
|
|
559 | ++base; |
|
|
560 | } |
|
|
561 | } |
|
|
562 | |
|
|
563 | void inline_speed |
|
|
564 | fd_event (EV_P_ int fd, int revents) |
1388 | fd_event_nocheck (EV_P_ int fd, int revents) |
565 | { |
1389 | { |
566 | ANFD *anfd = anfds + fd; |
1390 | ANFD *anfd = anfds + fd; |
567 | ev_io *w; |
1391 | ev_io *w; |
568 | |
1392 | |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1393 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
573 | if (ev) |
1397 | if (ev) |
574 | ev_feed_event (EV_A_ (W)w, ev); |
1398 | ev_feed_event (EV_A_ (W)w, ev); |
575 | } |
1399 | } |
576 | } |
1400 | } |
577 | |
1401 | |
|
|
1402 | /* do not submit kernel events for fds that have reify set */ |
|
|
1403 | /* because that means they changed while we were polling for new events */ |
|
|
1404 | inline_speed void |
|
|
1405 | fd_event (EV_P_ int fd, int revents) |
|
|
1406 | { |
|
|
1407 | ANFD *anfd = anfds + fd; |
|
|
1408 | |
|
|
1409 | if (expect_true (!anfd->reify)) |
|
|
1410 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1411 | } |
|
|
1412 | |
578 | void |
1413 | void |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1414 | ev_feed_fd_event (EV_P_ int fd, int revents) |
580 | { |
1415 | { |
581 | if (fd >= 0 && fd < anfdmax) |
1416 | if (fd >= 0 && fd < anfdmax) |
582 | fd_event (EV_A_ fd, revents); |
1417 | fd_event_nocheck (EV_A_ fd, revents); |
583 | } |
1418 | } |
584 | |
1419 | |
585 | void inline_size |
1420 | /* make sure the external fd watch events are in-sync */ |
|
|
1421 | /* with the kernel/libev internal state */ |
|
|
1422 | inline_size void |
586 | fd_reify (EV_P) |
1423 | fd_reify (EV_P) |
587 | { |
1424 | { |
588 | int i; |
1425 | int i; |
|
|
1426 | |
|
|
1427 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1428 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1429 | { |
|
|
1430 | int fd = fdchanges [i]; |
|
|
1431 | ANFD *anfd = anfds + fd; |
|
|
1432 | |
|
|
1433 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1434 | { |
|
|
1435 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1436 | |
|
|
1437 | if (handle != anfd->handle) |
|
|
1438 | { |
|
|
1439 | unsigned long arg; |
|
|
1440 | |
|
|
1441 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1442 | |
|
|
1443 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1444 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1445 | anfd->events = 0; |
|
|
1446 | anfd->handle = handle; |
|
|
1447 | } |
|
|
1448 | } |
|
|
1449 | } |
|
|
1450 | #endif |
589 | |
1451 | |
590 | for (i = 0; i < fdchangecnt; ++i) |
1452 | for (i = 0; i < fdchangecnt; ++i) |
591 | { |
1453 | { |
592 | int fd = fdchanges [i]; |
1454 | int fd = fdchanges [i]; |
593 | ANFD *anfd = anfds + fd; |
1455 | ANFD *anfd = anfds + fd; |
594 | ev_io *w; |
1456 | ev_io *w; |
595 | |
1457 | |
596 | unsigned char events = 0; |
1458 | unsigned char o_events = anfd->events; |
|
|
1459 | unsigned char o_reify = anfd->reify; |
597 | |
1460 | |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1461 | anfd->reify = 0; |
599 | events |= (unsigned char)w->events; |
|
|
600 | |
1462 | |
601 | #if EV_SELECT_IS_WINSOCKET |
1463 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
602 | if (events) |
|
|
603 | { |
1464 | { |
604 | unsigned long argp; |
1465 | anfd->events = 0; |
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
1466 | |
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1467 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
607 | #else |
1468 | anfd->events |= (unsigned char)w->events; |
608 | anfd->handle = _get_osfhandle (fd); |
1469 | |
609 | #endif |
1470 | if (o_events != anfd->events) |
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1471 | o_reify = EV__IOFDSET; /* actually |= */ |
611 | } |
1472 | } |
612 | #endif |
|
|
613 | |
1473 | |
614 | { |
1474 | if (o_reify & EV__IOFDSET) |
615 | unsigned char o_events = anfd->events; |
|
|
616 | unsigned char o_reify = anfd->reify; |
|
|
617 | |
|
|
618 | anfd->reify = 0; |
|
|
619 | anfd->events = events; |
|
|
620 | |
|
|
621 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
622 | backend_modify (EV_A_ fd, o_events, events); |
1475 | backend_modify (EV_A_ fd, o_events, anfd->events); |
623 | } |
|
|
624 | } |
1476 | } |
625 | |
1477 | |
626 | fdchangecnt = 0; |
1478 | fdchangecnt = 0; |
627 | } |
1479 | } |
628 | |
1480 | |
629 | void inline_size |
1481 | /* something about the given fd changed */ |
|
|
1482 | inline_size void |
630 | fd_change (EV_P_ int fd, int flags) |
1483 | fd_change (EV_P_ int fd, int flags) |
631 | { |
1484 | { |
632 | unsigned char reify = anfds [fd].reify; |
1485 | unsigned char reify = anfds [fd].reify; |
633 | anfds [fd].reify |= flags; |
1486 | anfds [fd].reify |= flags; |
634 | |
1487 | |
… | |
… | |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1491 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
639 | fdchanges [fdchangecnt - 1] = fd; |
1492 | fdchanges [fdchangecnt - 1] = fd; |
640 | } |
1493 | } |
641 | } |
1494 | } |
642 | |
1495 | |
643 | void inline_speed |
1496 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1497 | inline_speed void ecb_cold |
644 | fd_kill (EV_P_ int fd) |
1498 | fd_kill (EV_P_ int fd) |
645 | { |
1499 | { |
646 | ev_io *w; |
1500 | ev_io *w; |
647 | |
1501 | |
648 | while ((w = (ev_io *)anfds [fd].head)) |
1502 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
650 | ev_io_stop (EV_A_ w); |
1504 | ev_io_stop (EV_A_ w); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1505 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
652 | } |
1506 | } |
653 | } |
1507 | } |
654 | |
1508 | |
655 | int inline_size |
1509 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1510 | inline_size int ecb_cold |
656 | fd_valid (int fd) |
1511 | fd_valid (int fd) |
657 | { |
1512 | { |
658 | #ifdef _WIN32 |
1513 | #ifdef _WIN32 |
659 | return _get_osfhandle (fd) != -1; |
1514 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
660 | #else |
1515 | #else |
661 | return fcntl (fd, F_GETFD) != -1; |
1516 | return fcntl (fd, F_GETFD) != -1; |
662 | #endif |
1517 | #endif |
663 | } |
1518 | } |
664 | |
1519 | |
665 | /* called on EBADF to verify fds */ |
1520 | /* called on EBADF to verify fds */ |
666 | static void noinline |
1521 | static void noinline ecb_cold |
667 | fd_ebadf (EV_P) |
1522 | fd_ebadf (EV_P) |
668 | { |
1523 | { |
669 | int fd; |
1524 | int fd; |
670 | |
1525 | |
671 | for (fd = 0; fd < anfdmax; ++fd) |
1526 | for (fd = 0; fd < anfdmax; ++fd) |
672 | if (anfds [fd].events) |
1527 | if (anfds [fd].events) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1528 | if (!fd_valid (fd) && errno == EBADF) |
674 | fd_kill (EV_A_ fd); |
1529 | fd_kill (EV_A_ fd); |
675 | } |
1530 | } |
676 | |
1531 | |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1532 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
678 | static void noinline |
1533 | static void noinline ecb_cold |
679 | fd_enomem (EV_P) |
1534 | fd_enomem (EV_P) |
680 | { |
1535 | { |
681 | int fd; |
1536 | int fd; |
682 | |
1537 | |
683 | for (fd = anfdmax; fd--; ) |
1538 | for (fd = anfdmax; fd--; ) |
684 | if (anfds [fd].events) |
1539 | if (anfds [fd].events) |
685 | { |
1540 | { |
686 | fd_kill (EV_A_ fd); |
1541 | fd_kill (EV_A_ fd); |
687 | return; |
1542 | break; |
688 | } |
1543 | } |
689 | } |
1544 | } |
690 | |
1545 | |
691 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1546 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
692 | static void noinline |
1547 | static void noinline |
… | |
… | |
696 | |
1551 | |
697 | for (fd = 0; fd < anfdmax; ++fd) |
1552 | for (fd = 0; fd < anfdmax; ++fd) |
698 | if (anfds [fd].events) |
1553 | if (anfds [fd].events) |
699 | { |
1554 | { |
700 | anfds [fd].events = 0; |
1555 | anfds [fd].events = 0; |
|
|
1556 | anfds [fd].emask = 0; |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1557 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
702 | } |
1558 | } |
703 | } |
1559 | } |
704 | |
1560 | |
705 | /*****************************************************************************/ |
1561 | /* used to prepare libev internal fd's */ |
706 | |
1562 | /* this is not fork-safe */ |
707 | void inline_speed |
1563 | inline_speed void |
708 | upheap (WT *heap, int k) |
|
|
709 | { |
|
|
710 | WT w = heap [k]; |
|
|
711 | |
|
|
712 | while (k) |
|
|
713 | { |
|
|
714 | int p = (k - 1) >> 1; |
|
|
715 | |
|
|
716 | if (heap [p]->at <= w->at) |
|
|
717 | break; |
|
|
718 | |
|
|
719 | heap [k] = heap [p]; |
|
|
720 | ((W)heap [k])->active = k + 1; |
|
|
721 | k = p; |
|
|
722 | } |
|
|
723 | |
|
|
724 | heap [k] = w; |
|
|
725 | ((W)heap [k])->active = k + 1; |
|
|
726 | } |
|
|
727 | |
|
|
728 | void inline_speed |
|
|
729 | downheap (WT *heap, int N, int k) |
|
|
730 | { |
|
|
731 | WT w = heap [k]; |
|
|
732 | |
|
|
733 | for (;;) |
|
|
734 | { |
|
|
735 | int c = (k << 1) + 1; |
|
|
736 | |
|
|
737 | if (c >= N) |
|
|
738 | break; |
|
|
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
|
|
746 | heap [k] = heap [c]; |
|
|
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
|
|
749 | k = c; |
|
|
750 | } |
|
|
751 | |
|
|
752 | heap [k] = w; |
|
|
753 | ((W)heap [k])->active = k + 1; |
|
|
754 | } |
|
|
755 | |
|
|
756 | void inline_size |
|
|
757 | adjustheap (WT *heap, int N, int k) |
|
|
758 | { |
|
|
759 | upheap (heap, k); |
|
|
760 | downheap (heap, N, k); |
|
|
761 | } |
|
|
762 | |
|
|
763 | /*****************************************************************************/ |
|
|
764 | |
|
|
765 | typedef struct |
|
|
766 | { |
|
|
767 | WL head; |
|
|
768 | EV_ATOMIC_T gotsig; |
|
|
769 | } ANSIG; |
|
|
770 | |
|
|
771 | static ANSIG *signals; |
|
|
772 | static int signalmax; |
|
|
773 | |
|
|
774 | static EV_ATOMIC_T gotsig; |
|
|
775 | |
|
|
776 | void inline_size |
|
|
777 | signals_init (ANSIG *base, int count) |
|
|
778 | { |
|
|
779 | while (count--) |
|
|
780 | { |
|
|
781 | base->head = 0; |
|
|
782 | base->gotsig = 0; |
|
|
783 | |
|
|
784 | ++base; |
|
|
785 | } |
|
|
786 | } |
|
|
787 | |
|
|
788 | /*****************************************************************************/ |
|
|
789 | |
|
|
790 | void inline_speed |
|
|
791 | fd_intern (int fd) |
1564 | fd_intern (int fd) |
792 | { |
1565 | { |
793 | #ifdef _WIN32 |
1566 | #ifdef _WIN32 |
794 | int arg = 1; |
1567 | unsigned long arg = 1; |
795 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1568 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
796 | #else |
1569 | #else |
797 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1570 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
798 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1571 | fcntl (fd, F_SETFL, O_NONBLOCK); |
799 | #endif |
1572 | #endif |
800 | } |
1573 | } |
801 | |
1574 | |
|
|
1575 | /*****************************************************************************/ |
|
|
1576 | |
|
|
1577 | /* |
|
|
1578 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1579 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1580 | * the branching factor of the d-tree. |
|
|
1581 | */ |
|
|
1582 | |
|
|
1583 | /* |
|
|
1584 | * at the moment we allow libev the luxury of two heaps, |
|
|
1585 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1586 | * which is more cache-efficient. |
|
|
1587 | * the difference is about 5% with 50000+ watchers. |
|
|
1588 | */ |
|
|
1589 | #if EV_USE_4HEAP |
|
|
1590 | |
|
|
1591 | #define DHEAP 4 |
|
|
1592 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1593 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1594 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1595 | |
|
|
1596 | /* away from the root */ |
|
|
1597 | inline_speed void |
|
|
1598 | downheap (ANHE *heap, int N, int k) |
|
|
1599 | { |
|
|
1600 | ANHE he = heap [k]; |
|
|
1601 | ANHE *E = heap + N + HEAP0; |
|
|
1602 | |
|
|
1603 | for (;;) |
|
|
1604 | { |
|
|
1605 | ev_tstamp minat; |
|
|
1606 | ANHE *minpos; |
|
|
1607 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1608 | |
|
|
1609 | /* find minimum child */ |
|
|
1610 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1611 | { |
|
|
1612 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1613 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1614 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1615 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1616 | } |
|
|
1617 | else if (pos < E) |
|
|
1618 | { |
|
|
1619 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1620 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1621 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1622 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1623 | } |
|
|
1624 | else |
|
|
1625 | break; |
|
|
1626 | |
|
|
1627 | if (ANHE_at (he) <= minat) |
|
|
1628 | break; |
|
|
1629 | |
|
|
1630 | heap [k] = *minpos; |
|
|
1631 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1632 | |
|
|
1633 | k = minpos - heap; |
|
|
1634 | } |
|
|
1635 | |
|
|
1636 | heap [k] = he; |
|
|
1637 | ev_active (ANHE_w (he)) = k; |
|
|
1638 | } |
|
|
1639 | |
|
|
1640 | #else /* 4HEAP */ |
|
|
1641 | |
|
|
1642 | #define HEAP0 1 |
|
|
1643 | #define HPARENT(k) ((k) >> 1) |
|
|
1644 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1645 | |
|
|
1646 | /* away from the root */ |
|
|
1647 | inline_speed void |
|
|
1648 | downheap (ANHE *heap, int N, int k) |
|
|
1649 | { |
|
|
1650 | ANHE he = heap [k]; |
|
|
1651 | |
|
|
1652 | for (;;) |
|
|
1653 | { |
|
|
1654 | int c = k << 1; |
|
|
1655 | |
|
|
1656 | if (c >= N + HEAP0) |
|
|
1657 | break; |
|
|
1658 | |
|
|
1659 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1660 | ? 1 : 0; |
|
|
1661 | |
|
|
1662 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1663 | break; |
|
|
1664 | |
|
|
1665 | heap [k] = heap [c]; |
|
|
1666 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1667 | |
|
|
1668 | k = c; |
|
|
1669 | } |
|
|
1670 | |
|
|
1671 | heap [k] = he; |
|
|
1672 | ev_active (ANHE_w (he)) = k; |
|
|
1673 | } |
|
|
1674 | #endif |
|
|
1675 | |
|
|
1676 | /* towards the root */ |
|
|
1677 | inline_speed void |
|
|
1678 | upheap (ANHE *heap, int k) |
|
|
1679 | { |
|
|
1680 | ANHE he = heap [k]; |
|
|
1681 | |
|
|
1682 | for (;;) |
|
|
1683 | { |
|
|
1684 | int p = HPARENT (k); |
|
|
1685 | |
|
|
1686 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1687 | break; |
|
|
1688 | |
|
|
1689 | heap [k] = heap [p]; |
|
|
1690 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1691 | k = p; |
|
|
1692 | } |
|
|
1693 | |
|
|
1694 | heap [k] = he; |
|
|
1695 | ev_active (ANHE_w (he)) = k; |
|
|
1696 | } |
|
|
1697 | |
|
|
1698 | /* move an element suitably so it is in a correct place */ |
|
|
1699 | inline_size void |
|
|
1700 | adjustheap (ANHE *heap, int N, int k) |
|
|
1701 | { |
|
|
1702 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1703 | upheap (heap, k); |
|
|
1704 | else |
|
|
1705 | downheap (heap, N, k); |
|
|
1706 | } |
|
|
1707 | |
|
|
1708 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1709 | inline_size void |
|
|
1710 | reheap (ANHE *heap, int N) |
|
|
1711 | { |
|
|
1712 | int i; |
|
|
1713 | |
|
|
1714 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1715 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1716 | for (i = 0; i < N; ++i) |
|
|
1717 | upheap (heap, i + HEAP0); |
|
|
1718 | } |
|
|
1719 | |
|
|
1720 | /*****************************************************************************/ |
|
|
1721 | |
|
|
1722 | /* associate signal watchers to a signal signal */ |
|
|
1723 | typedef struct |
|
|
1724 | { |
|
|
1725 | EV_ATOMIC_T pending; |
|
|
1726 | #if EV_MULTIPLICITY |
|
|
1727 | EV_P; |
|
|
1728 | #endif |
|
|
1729 | WL head; |
|
|
1730 | } ANSIG; |
|
|
1731 | |
|
|
1732 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1733 | |
|
|
1734 | /*****************************************************************************/ |
|
|
1735 | |
|
|
1736 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1737 | |
802 | static void noinline |
1738 | static void noinline ecb_cold |
803 | evpipe_init (EV_P) |
1739 | evpipe_init (EV_P) |
804 | { |
1740 | { |
805 | if (!ev_is_active (&pipeev)) |
1741 | if (!ev_is_active (&pipe_w)) |
806 | { |
1742 | { |
|
|
1743 | # if EV_USE_EVENTFD |
|
|
1744 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1745 | if (evfd < 0 && errno == EINVAL) |
|
|
1746 | evfd = eventfd (0, 0); |
|
|
1747 | |
|
|
1748 | if (evfd >= 0) |
|
|
1749 | { |
|
|
1750 | evpipe [0] = -1; |
|
|
1751 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1752 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1753 | } |
|
|
1754 | else |
|
|
1755 | # endif |
|
|
1756 | { |
807 | while (pipe (evpipe)) |
1757 | while (pipe (evpipe)) |
808 | syserr ("(libev) error creating signal/async pipe"); |
1758 | ev_syserr ("(libev) error creating signal/async pipe"); |
809 | |
1759 | |
810 | fd_intern (evpipe [0]); |
1760 | fd_intern (evpipe [0]); |
811 | fd_intern (evpipe [1]); |
1761 | fd_intern (evpipe [1]); |
812 | |
|
|
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1762 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1763 | } |
|
|
1764 | |
814 | ev_io_start (EV_A_ &pipeev); |
1765 | ev_io_start (EV_A_ &pipe_w); |
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1766 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
816 | } |
1767 | } |
817 | } |
1768 | } |
818 | |
1769 | |
819 | void inline_size |
1770 | inline_speed void |
820 | evpipe_write (EV_P_ int sig, int async) |
1771 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
821 | { |
1772 | { |
822 | if (!(gotasync || gotsig)) |
1773 | if (expect_true (*flag)) |
|
|
1774 | return; |
|
|
1775 | |
|
|
1776 | *flag = 1; |
|
|
1777 | |
|
|
1778 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1779 | |
|
|
1780 | pipe_write_skipped = 1; |
|
|
1781 | |
|
|
1782 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1783 | |
|
|
1784 | if (pipe_write_wanted) |
823 | { |
1785 | { |
|
|
1786 | int old_errno; |
|
|
1787 | |
|
|
1788 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1789 | |
824 | int old_errno = errno; /* save errno becaue write might clobber it */ |
1790 | old_errno = errno; /* save errno because write will clobber it */ |
825 | |
1791 | |
826 | if (sig) gotsig = 1; |
1792 | #if EV_USE_EVENTFD |
827 | if (async) gotasync = 1; |
1793 | if (evfd >= 0) |
828 | |
1794 | { |
829 | write (evpipe [1], &old_errno, 1); |
1795 | uint64_t counter = 1; |
|
|
1796 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1797 | } |
|
|
1798 | else |
|
|
1799 | #endif |
|
|
1800 | { |
|
|
1801 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1802 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1803 | /* so when you think this write should be a send instead, please find out */ |
|
|
1804 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1805 | /* tell me. thank you. */ |
|
|
1806 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1807 | } |
830 | |
1808 | |
831 | errno = old_errno; |
1809 | errno = old_errno; |
832 | } |
1810 | } |
833 | } |
1811 | } |
834 | |
1812 | |
|
|
1813 | /* called whenever the libev signal pipe */ |
|
|
1814 | /* got some events (signal, async) */ |
835 | static void |
1815 | static void |
836 | pipecb (EV_P_ ev_io *iow, int revents) |
1816 | pipecb (EV_P_ ev_io *iow, int revents) |
837 | { |
1817 | { |
|
|
1818 | int i; |
|
|
1819 | |
|
|
1820 | if (revents & EV_READ) |
838 | { |
1821 | { |
839 | int dummy; |
1822 | #if EV_USE_EVENTFD |
|
|
1823 | if (evfd >= 0) |
|
|
1824 | { |
|
|
1825 | uint64_t counter; |
|
|
1826 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1827 | } |
|
|
1828 | else |
|
|
1829 | #endif |
|
|
1830 | { |
|
|
1831 | char dummy; |
|
|
1832 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
840 | read (evpipe [0], &dummy, 1); |
1833 | read (evpipe [0], &dummy, 1); |
|
|
1834 | } |
841 | } |
1835 | } |
842 | |
1836 | |
843 | if (gotsig) |
1837 | pipe_write_skipped = 0; |
844 | { |
|
|
845 | int signum; |
|
|
846 | gotsig = 0; |
|
|
847 | |
1838 | |
848 | for (signum = signalmax; signum--; ) |
1839 | #if EV_SIGNAL_ENABLE |
849 | if (signals [signum].gotsig) |
1840 | if (sig_pending) |
|
|
1841 | { |
|
|
1842 | sig_pending = 0; |
|
|
1843 | |
|
|
1844 | for (i = EV_NSIG - 1; i--; ) |
|
|
1845 | if (expect_false (signals [i].pending)) |
850 | ev_feed_signal_event (EV_A_ signum + 1); |
1846 | ev_feed_signal_event (EV_A_ i + 1); |
851 | } |
1847 | } |
|
|
1848 | #endif |
852 | |
1849 | |
853 | #if EV_ASYNC_ENABLE |
1850 | #if EV_ASYNC_ENABLE |
854 | if (gotasync) |
1851 | if (async_pending) |
855 | { |
1852 | { |
856 | int i; |
1853 | async_pending = 0; |
857 | gotasync = 0; |
|
|
858 | |
1854 | |
859 | for (i = asynccnt; i--; ) |
1855 | for (i = asynccnt; i--; ) |
860 | if (asyncs [i]->sent) |
1856 | if (asyncs [i]->sent) |
861 | { |
1857 | { |
862 | asyncs [i]->sent = 0; |
1858 | asyncs [i]->sent = 0; |
… | |
… | |
866 | #endif |
1862 | #endif |
867 | } |
1863 | } |
868 | |
1864 | |
869 | /*****************************************************************************/ |
1865 | /*****************************************************************************/ |
870 | |
1866 | |
|
|
1867 | void |
|
|
1868 | ev_feed_signal (int signum) |
|
|
1869 | { |
|
|
1870 | #if EV_MULTIPLICITY |
|
|
1871 | EV_P = signals [signum - 1].loop; |
|
|
1872 | |
|
|
1873 | if (!EV_A) |
|
|
1874 | return; |
|
|
1875 | #endif |
|
|
1876 | |
|
|
1877 | if (!ev_active (&pipe_w)) |
|
|
1878 | return; |
|
|
1879 | |
|
|
1880 | signals [signum - 1].pending = 1; |
|
|
1881 | evpipe_write (EV_A_ &sig_pending); |
|
|
1882 | } |
|
|
1883 | |
871 | static void |
1884 | static void |
872 | sighandler (int signum) |
1885 | ev_sighandler (int signum) |
873 | { |
1886 | { |
874 | #if EV_MULTIPLICITY |
|
|
875 | struct ev_loop *loop = &default_loop_struct; |
|
|
876 | #endif |
|
|
877 | |
|
|
878 | #if _WIN32 |
1887 | #ifdef _WIN32 |
879 | signal (signum, sighandler); |
1888 | signal (signum, ev_sighandler); |
880 | #endif |
1889 | #endif |
881 | |
1890 | |
882 | signals [signum - 1].gotsig = 1; |
1891 | ev_feed_signal (signum); |
883 | evpipe_write (EV_A_ 1, 0); |
|
|
884 | } |
1892 | } |
885 | |
1893 | |
886 | void noinline |
1894 | void noinline |
887 | ev_feed_signal_event (EV_P_ int signum) |
1895 | ev_feed_signal_event (EV_P_ int signum) |
888 | { |
1896 | { |
889 | WL w; |
1897 | WL w; |
890 | |
1898 | |
|
|
1899 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1900 | return; |
|
|
1901 | |
|
|
1902 | --signum; |
|
|
1903 | |
891 | #if EV_MULTIPLICITY |
1904 | #if EV_MULTIPLICITY |
892 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1905 | /* it is permissible to try to feed a signal to the wrong loop */ |
893 | #endif |
1906 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
894 | |
1907 | |
895 | --signum; |
1908 | if (expect_false (signals [signum].loop != EV_A)) |
896 | |
|
|
897 | if (signum < 0 || signum >= signalmax) |
|
|
898 | return; |
1909 | return; |
|
|
1910 | #endif |
899 | |
1911 | |
900 | signals [signum].gotsig = 0; |
1912 | signals [signum].pending = 0; |
901 | |
1913 | |
902 | for (w = signals [signum].head; w; w = w->next) |
1914 | for (w = signals [signum].head; w; w = w->next) |
903 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1915 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
904 | } |
1916 | } |
905 | |
1917 | |
|
|
1918 | #if EV_USE_SIGNALFD |
|
|
1919 | static void |
|
|
1920 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1921 | { |
|
|
1922 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1923 | |
|
|
1924 | for (;;) |
|
|
1925 | { |
|
|
1926 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1927 | |
|
|
1928 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1929 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1930 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1931 | |
|
|
1932 | if (res < (ssize_t)sizeof (si)) |
|
|
1933 | break; |
|
|
1934 | } |
|
|
1935 | } |
|
|
1936 | #endif |
|
|
1937 | |
|
|
1938 | #endif |
|
|
1939 | |
906 | /*****************************************************************************/ |
1940 | /*****************************************************************************/ |
907 | |
1941 | |
|
|
1942 | #if EV_CHILD_ENABLE |
908 | static WL childs [EV_PID_HASHSIZE]; |
1943 | static WL childs [EV_PID_HASHSIZE]; |
909 | |
|
|
910 | #ifndef _WIN32 |
|
|
911 | |
1944 | |
912 | static ev_signal childev; |
1945 | static ev_signal childev; |
913 | |
1946 | |
914 | #ifndef WIFCONTINUED |
1947 | #ifndef WIFCONTINUED |
915 | # define WIFCONTINUED(status) 0 |
1948 | # define WIFCONTINUED(status) 0 |
916 | #endif |
1949 | #endif |
917 | |
1950 | |
918 | void inline_speed |
1951 | /* handle a single child status event */ |
|
|
1952 | inline_speed void |
919 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1953 | child_reap (EV_P_ int chain, int pid, int status) |
920 | { |
1954 | { |
921 | ev_child *w; |
1955 | ev_child *w; |
922 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1956 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
923 | |
1957 | |
924 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1958 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
925 | { |
1959 | { |
926 | if ((w->pid == pid || !w->pid) |
1960 | if ((w->pid == pid || !w->pid) |
927 | && (!traced || (w->flags & 1))) |
1961 | && (!traced || (w->flags & 1))) |
928 | { |
1962 | { |
929 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1963 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
930 | w->rpid = pid; |
1964 | w->rpid = pid; |
931 | w->rstatus = status; |
1965 | w->rstatus = status; |
932 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1966 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
933 | } |
1967 | } |
934 | } |
1968 | } |
… | |
… | |
936 | |
1970 | |
937 | #ifndef WCONTINUED |
1971 | #ifndef WCONTINUED |
938 | # define WCONTINUED 0 |
1972 | # define WCONTINUED 0 |
939 | #endif |
1973 | #endif |
940 | |
1974 | |
|
|
1975 | /* called on sigchld etc., calls waitpid */ |
941 | static void |
1976 | static void |
942 | childcb (EV_P_ ev_signal *sw, int revents) |
1977 | childcb (EV_P_ ev_signal *sw, int revents) |
943 | { |
1978 | { |
944 | int pid, status; |
1979 | int pid, status; |
945 | |
1980 | |
… | |
… | |
948 | if (!WCONTINUED |
1983 | if (!WCONTINUED |
949 | || errno != EINVAL |
1984 | || errno != EINVAL |
950 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1985 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
951 | return; |
1986 | return; |
952 | |
1987 | |
953 | /* make sure we are called again until all childs have been reaped */ |
1988 | /* make sure we are called again until all children have been reaped */ |
954 | /* we need to do it this way so that the callback gets called before we continue */ |
1989 | /* we need to do it this way so that the callback gets called before we continue */ |
955 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1990 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
956 | |
1991 | |
957 | child_reap (EV_A_ sw, pid, pid, status); |
1992 | child_reap (EV_A_ pid, pid, status); |
958 | if (EV_PID_HASHSIZE > 1) |
1993 | if ((EV_PID_HASHSIZE) > 1) |
959 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1994 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
960 | } |
1995 | } |
961 | |
1996 | |
962 | #endif |
1997 | #endif |
963 | |
1998 | |
964 | /*****************************************************************************/ |
1999 | /*****************************************************************************/ |
965 | |
2000 | |
|
|
2001 | #if EV_USE_IOCP |
|
|
2002 | # include "ev_iocp.c" |
|
|
2003 | #endif |
966 | #if EV_USE_PORT |
2004 | #if EV_USE_PORT |
967 | # include "ev_port.c" |
2005 | # include "ev_port.c" |
968 | #endif |
2006 | #endif |
969 | #if EV_USE_KQUEUE |
2007 | #if EV_USE_KQUEUE |
970 | # include "ev_kqueue.c" |
2008 | # include "ev_kqueue.c" |
… | |
… | |
977 | #endif |
2015 | #endif |
978 | #if EV_USE_SELECT |
2016 | #if EV_USE_SELECT |
979 | # include "ev_select.c" |
2017 | # include "ev_select.c" |
980 | #endif |
2018 | #endif |
981 | |
2019 | |
982 | int |
2020 | int ecb_cold |
983 | ev_version_major (void) |
2021 | ev_version_major (void) |
984 | { |
2022 | { |
985 | return EV_VERSION_MAJOR; |
2023 | return EV_VERSION_MAJOR; |
986 | } |
2024 | } |
987 | |
2025 | |
988 | int |
2026 | int ecb_cold |
989 | ev_version_minor (void) |
2027 | ev_version_minor (void) |
990 | { |
2028 | { |
991 | return EV_VERSION_MINOR; |
2029 | return EV_VERSION_MINOR; |
992 | } |
2030 | } |
993 | |
2031 | |
994 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2032 | /* return true if we are running with elevated privileges and should ignore env variables */ |
995 | int inline_size |
2033 | int inline_size ecb_cold |
996 | enable_secure (void) |
2034 | enable_secure (void) |
997 | { |
2035 | { |
998 | #ifdef _WIN32 |
2036 | #ifdef _WIN32 |
999 | return 0; |
2037 | return 0; |
1000 | #else |
2038 | #else |
1001 | return getuid () != geteuid () |
2039 | return getuid () != geteuid () |
1002 | || getgid () != getegid (); |
2040 | || getgid () != getegid (); |
1003 | #endif |
2041 | #endif |
1004 | } |
2042 | } |
1005 | |
2043 | |
1006 | unsigned int |
2044 | unsigned int ecb_cold |
1007 | ev_supported_backends (void) |
2045 | ev_supported_backends (void) |
1008 | { |
2046 | { |
1009 | unsigned int flags = 0; |
2047 | unsigned int flags = 0; |
1010 | |
2048 | |
1011 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2049 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1015 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2053 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1016 | |
2054 | |
1017 | return flags; |
2055 | return flags; |
1018 | } |
2056 | } |
1019 | |
2057 | |
1020 | unsigned int |
2058 | unsigned int ecb_cold |
1021 | ev_recommended_backends (void) |
2059 | ev_recommended_backends (void) |
1022 | { |
2060 | { |
1023 | unsigned int flags = ev_supported_backends (); |
2061 | unsigned int flags = ev_supported_backends (); |
1024 | |
2062 | |
1025 | #ifndef __NetBSD__ |
2063 | #ifndef __NetBSD__ |
1026 | /* kqueue is borked on everything but netbsd apparently */ |
2064 | /* kqueue is borked on everything but netbsd apparently */ |
1027 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2065 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1028 | flags &= ~EVBACKEND_KQUEUE; |
2066 | flags &= ~EVBACKEND_KQUEUE; |
1029 | #endif |
2067 | #endif |
1030 | #ifdef __APPLE__ |
2068 | #ifdef __APPLE__ |
1031 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2069 | /* only select works correctly on that "unix-certified" platform */ |
1032 | flags &= ~EVBACKEND_POLL; |
2070 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2071 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2072 | #endif |
|
|
2073 | #ifdef __FreeBSD__ |
|
|
2074 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1033 | #endif |
2075 | #endif |
1034 | |
2076 | |
1035 | return flags; |
2077 | return flags; |
1036 | } |
2078 | } |
1037 | |
2079 | |
1038 | unsigned int |
2080 | unsigned int ecb_cold |
1039 | ev_embeddable_backends (void) |
2081 | ev_embeddable_backends (void) |
1040 | { |
2082 | { |
1041 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2083 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1042 | |
2084 | |
1043 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2085 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1044 | /* please fix it and tell me how to detect the fix */ |
2086 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1045 | flags &= ~EVBACKEND_EPOLL; |
2087 | flags &= ~EVBACKEND_EPOLL; |
1046 | |
2088 | |
1047 | return flags; |
2089 | return flags; |
1048 | } |
2090 | } |
1049 | |
2091 | |
1050 | unsigned int |
2092 | unsigned int |
1051 | ev_backend (EV_P) |
2093 | ev_backend (EV_P) |
1052 | { |
2094 | { |
1053 | return backend; |
2095 | return backend; |
1054 | } |
2096 | } |
1055 | |
2097 | |
|
|
2098 | #if EV_FEATURE_API |
1056 | unsigned int |
2099 | unsigned int |
1057 | ev_loop_count (EV_P) |
2100 | ev_iteration (EV_P) |
1058 | { |
2101 | { |
1059 | return loop_count; |
2102 | return loop_count; |
|
|
2103 | } |
|
|
2104 | |
|
|
2105 | unsigned int |
|
|
2106 | ev_depth (EV_P) |
|
|
2107 | { |
|
|
2108 | return loop_depth; |
1060 | } |
2109 | } |
1061 | |
2110 | |
1062 | void |
2111 | void |
1063 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2112 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1064 | { |
2113 | { |
… | |
… | |
1069 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2118 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1070 | { |
2119 | { |
1071 | timeout_blocktime = interval; |
2120 | timeout_blocktime = interval; |
1072 | } |
2121 | } |
1073 | |
2122 | |
|
|
2123 | void |
|
|
2124 | ev_set_userdata (EV_P_ void *data) |
|
|
2125 | { |
|
|
2126 | userdata = data; |
|
|
2127 | } |
|
|
2128 | |
|
|
2129 | void * |
|
|
2130 | ev_userdata (EV_P) |
|
|
2131 | { |
|
|
2132 | return userdata; |
|
|
2133 | } |
|
|
2134 | |
|
|
2135 | void |
|
|
2136 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
2137 | { |
|
|
2138 | invoke_cb = invoke_pending_cb; |
|
|
2139 | } |
|
|
2140 | |
|
|
2141 | void |
|
|
2142 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
2143 | { |
|
|
2144 | release_cb = release; |
|
|
2145 | acquire_cb = acquire; |
|
|
2146 | } |
|
|
2147 | #endif |
|
|
2148 | |
|
|
2149 | /* initialise a loop structure, must be zero-initialised */ |
1074 | static void noinline |
2150 | static void noinline ecb_cold |
1075 | loop_init (EV_P_ unsigned int flags) |
2151 | loop_init (EV_P_ unsigned int flags) |
1076 | { |
2152 | { |
1077 | if (!backend) |
2153 | if (!backend) |
1078 | { |
2154 | { |
|
|
2155 | origflags = flags; |
|
|
2156 | |
|
|
2157 | #if EV_USE_REALTIME |
|
|
2158 | if (!have_realtime) |
|
|
2159 | { |
|
|
2160 | struct timespec ts; |
|
|
2161 | |
|
|
2162 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2163 | have_realtime = 1; |
|
|
2164 | } |
|
|
2165 | #endif |
|
|
2166 | |
1079 | #if EV_USE_MONOTONIC |
2167 | #if EV_USE_MONOTONIC |
|
|
2168 | if (!have_monotonic) |
1080 | { |
2169 | { |
1081 | struct timespec ts; |
2170 | struct timespec ts; |
|
|
2171 | |
1082 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2172 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1083 | have_monotonic = 1; |
2173 | have_monotonic = 1; |
1084 | } |
2174 | } |
1085 | #endif |
|
|
1086 | |
|
|
1087 | ev_rt_now = ev_time (); |
|
|
1088 | mn_now = get_clock (); |
|
|
1089 | now_floor = mn_now; |
|
|
1090 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1091 | |
|
|
1092 | io_blocktime = 0.; |
|
|
1093 | timeout_blocktime = 0.; |
|
|
1094 | backend = 0; |
|
|
1095 | backend_fd = -1; |
|
|
1096 | gotasync = 0; |
|
|
1097 | #if EV_USE_INOTIFY |
|
|
1098 | fs_fd = -2; |
|
|
1099 | #endif |
2175 | #endif |
1100 | |
2176 | |
1101 | /* pid check not overridable via env */ |
2177 | /* pid check not overridable via env */ |
1102 | #ifndef _WIN32 |
2178 | #ifndef _WIN32 |
1103 | if (flags & EVFLAG_FORKCHECK) |
2179 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1107 | if (!(flags & EVFLAG_NOENV) |
2183 | if (!(flags & EVFLAG_NOENV) |
1108 | && !enable_secure () |
2184 | && !enable_secure () |
1109 | && getenv ("LIBEV_FLAGS")) |
2185 | && getenv ("LIBEV_FLAGS")) |
1110 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2186 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1111 | |
2187 | |
1112 | if (!(flags & 0x0000ffffUL)) |
2188 | ev_rt_now = ev_time (); |
|
|
2189 | mn_now = get_clock (); |
|
|
2190 | now_floor = mn_now; |
|
|
2191 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2192 | #if EV_FEATURE_API |
|
|
2193 | invoke_cb = ev_invoke_pending; |
|
|
2194 | #endif |
|
|
2195 | |
|
|
2196 | io_blocktime = 0.; |
|
|
2197 | timeout_blocktime = 0.; |
|
|
2198 | backend = 0; |
|
|
2199 | backend_fd = -1; |
|
|
2200 | sig_pending = 0; |
|
|
2201 | #if EV_ASYNC_ENABLE |
|
|
2202 | async_pending = 0; |
|
|
2203 | #endif |
|
|
2204 | pipe_write_skipped = 0; |
|
|
2205 | pipe_write_wanted = 0; |
|
|
2206 | #if EV_USE_INOTIFY |
|
|
2207 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2208 | #endif |
|
|
2209 | #if EV_USE_SIGNALFD |
|
|
2210 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2211 | #endif |
|
|
2212 | |
|
|
2213 | if (!(flags & EVBACKEND_MASK)) |
1113 | flags |= ev_recommended_backends (); |
2214 | flags |= ev_recommended_backends (); |
1114 | |
2215 | |
|
|
2216 | #if EV_USE_IOCP |
|
|
2217 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2218 | #endif |
1115 | #if EV_USE_PORT |
2219 | #if EV_USE_PORT |
1116 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2220 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1117 | #endif |
2221 | #endif |
1118 | #if EV_USE_KQUEUE |
2222 | #if EV_USE_KQUEUE |
1119 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2223 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1126 | #endif |
2230 | #endif |
1127 | #if EV_USE_SELECT |
2231 | #if EV_USE_SELECT |
1128 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2232 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1129 | #endif |
2233 | #endif |
1130 | |
2234 | |
|
|
2235 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2236 | |
|
|
2237 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1131 | ev_init (&pipeev, pipecb); |
2238 | ev_init (&pipe_w, pipecb); |
1132 | ev_set_priority (&pipeev, EV_MAXPRI); |
2239 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2240 | #endif |
1133 | } |
2241 | } |
1134 | } |
2242 | } |
1135 | |
2243 | |
1136 | static void noinline |
2244 | /* free up a loop structure */ |
|
|
2245 | void ecb_cold |
1137 | loop_destroy (EV_P) |
2246 | ev_loop_destroy (EV_P) |
1138 | { |
2247 | { |
1139 | int i; |
2248 | int i; |
1140 | |
2249 | |
|
|
2250 | #if EV_MULTIPLICITY |
|
|
2251 | /* mimic free (0) */ |
|
|
2252 | if (!EV_A) |
|
|
2253 | return; |
|
|
2254 | #endif |
|
|
2255 | |
|
|
2256 | #if EV_CLEANUP_ENABLE |
|
|
2257 | /* queue cleanup watchers (and execute them) */ |
|
|
2258 | if (expect_false (cleanupcnt)) |
|
|
2259 | { |
|
|
2260 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2261 | EV_INVOKE_PENDING; |
|
|
2262 | } |
|
|
2263 | #endif |
|
|
2264 | |
|
|
2265 | #if EV_CHILD_ENABLE |
|
|
2266 | if (ev_is_active (&childev)) |
|
|
2267 | { |
|
|
2268 | ev_ref (EV_A); /* child watcher */ |
|
|
2269 | ev_signal_stop (EV_A_ &childev); |
|
|
2270 | } |
|
|
2271 | #endif |
|
|
2272 | |
1141 | if (ev_is_active (&pipeev)) |
2273 | if (ev_is_active (&pipe_w)) |
1142 | { |
2274 | { |
1143 | ev_ref (EV_A); /* signal watcher */ |
2275 | /*ev_ref (EV_A);*/ |
1144 | ev_io_stop (EV_A_ &pipeev); |
2276 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1145 | |
2277 | |
1146 | close (evpipe [0]); evpipe [0] = 0; |
2278 | #if EV_USE_EVENTFD |
1147 | close (evpipe [1]); evpipe [1] = 0; |
2279 | if (evfd >= 0) |
|
|
2280 | close (evfd); |
|
|
2281 | #endif |
|
|
2282 | |
|
|
2283 | if (evpipe [0] >= 0) |
|
|
2284 | { |
|
|
2285 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2286 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2287 | } |
1148 | } |
2288 | } |
|
|
2289 | |
|
|
2290 | #if EV_USE_SIGNALFD |
|
|
2291 | if (ev_is_active (&sigfd_w)) |
|
|
2292 | close (sigfd); |
|
|
2293 | #endif |
1149 | |
2294 | |
1150 | #if EV_USE_INOTIFY |
2295 | #if EV_USE_INOTIFY |
1151 | if (fs_fd >= 0) |
2296 | if (fs_fd >= 0) |
1152 | close (fs_fd); |
2297 | close (fs_fd); |
1153 | #endif |
2298 | #endif |
1154 | |
2299 | |
1155 | if (backend_fd >= 0) |
2300 | if (backend_fd >= 0) |
1156 | close (backend_fd); |
2301 | close (backend_fd); |
1157 | |
2302 | |
|
|
2303 | #if EV_USE_IOCP |
|
|
2304 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2305 | #endif |
1158 | #if EV_USE_PORT |
2306 | #if EV_USE_PORT |
1159 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2307 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1160 | #endif |
2308 | #endif |
1161 | #if EV_USE_KQUEUE |
2309 | #if EV_USE_KQUEUE |
1162 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2310 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1177 | #if EV_IDLE_ENABLE |
2325 | #if EV_IDLE_ENABLE |
1178 | array_free (idle, [i]); |
2326 | array_free (idle, [i]); |
1179 | #endif |
2327 | #endif |
1180 | } |
2328 | } |
1181 | |
2329 | |
1182 | ev_free (anfds); anfdmax = 0; |
2330 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1183 | |
2331 | |
1184 | /* have to use the microsoft-never-gets-it-right macro */ |
2332 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2333 | array_free (rfeed, EMPTY); |
1185 | array_free (fdchange, EMPTY); |
2334 | array_free (fdchange, EMPTY); |
1186 | array_free (timer, EMPTY); |
2335 | array_free (timer, EMPTY); |
1187 | #if EV_PERIODIC_ENABLE |
2336 | #if EV_PERIODIC_ENABLE |
1188 | array_free (periodic, EMPTY); |
2337 | array_free (periodic, EMPTY); |
1189 | #endif |
2338 | #endif |
1190 | #if EV_FORK_ENABLE |
2339 | #if EV_FORK_ENABLE |
1191 | array_free (fork, EMPTY); |
2340 | array_free (fork, EMPTY); |
1192 | #endif |
2341 | #endif |
|
|
2342 | #if EV_CLEANUP_ENABLE |
|
|
2343 | array_free (cleanup, EMPTY); |
|
|
2344 | #endif |
1193 | array_free (prepare, EMPTY); |
2345 | array_free (prepare, EMPTY); |
1194 | array_free (check, EMPTY); |
2346 | array_free (check, EMPTY); |
1195 | #if EV_ASYNC_ENABLE |
2347 | #if EV_ASYNC_ENABLE |
1196 | array_free (async, EMPTY); |
2348 | array_free (async, EMPTY); |
1197 | #endif |
2349 | #endif |
1198 | |
2350 | |
1199 | backend = 0; |
2351 | backend = 0; |
1200 | } |
|
|
1201 | |
2352 | |
|
|
2353 | #if EV_MULTIPLICITY |
|
|
2354 | if (ev_is_default_loop (EV_A)) |
|
|
2355 | #endif |
|
|
2356 | ev_default_loop_ptr = 0; |
|
|
2357 | #if EV_MULTIPLICITY |
|
|
2358 | else |
|
|
2359 | ev_free (EV_A); |
|
|
2360 | #endif |
|
|
2361 | } |
|
|
2362 | |
|
|
2363 | #if EV_USE_INOTIFY |
1202 | void inline_size infy_fork (EV_P); |
2364 | inline_size void infy_fork (EV_P); |
|
|
2365 | #endif |
1203 | |
2366 | |
1204 | void inline_size |
2367 | inline_size void |
1205 | loop_fork (EV_P) |
2368 | loop_fork (EV_P) |
1206 | { |
2369 | { |
1207 | #if EV_USE_PORT |
2370 | #if EV_USE_PORT |
1208 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2371 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1209 | #endif |
2372 | #endif |
… | |
… | |
1215 | #endif |
2378 | #endif |
1216 | #if EV_USE_INOTIFY |
2379 | #if EV_USE_INOTIFY |
1217 | infy_fork (EV_A); |
2380 | infy_fork (EV_A); |
1218 | #endif |
2381 | #endif |
1219 | |
2382 | |
1220 | if (ev_is_active (&pipeev)) |
2383 | if (ev_is_active (&pipe_w)) |
1221 | { |
2384 | { |
1222 | /* this "locks" the handlers against writing to the pipe */ |
2385 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1223 | gotsig = gotasync = 1; |
|
|
1224 | |
2386 | |
1225 | ev_ref (EV_A); |
2387 | ev_ref (EV_A); |
1226 | ev_io_stop (EV_A_ &pipeev); |
2388 | ev_io_stop (EV_A_ &pipe_w); |
1227 | close (evpipe [0]); |
|
|
1228 | close (evpipe [1]); |
|
|
1229 | |
2389 | |
|
|
2390 | #if EV_USE_EVENTFD |
|
|
2391 | if (evfd >= 0) |
|
|
2392 | close (evfd); |
|
|
2393 | #endif |
|
|
2394 | |
|
|
2395 | if (evpipe [0] >= 0) |
|
|
2396 | { |
|
|
2397 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2398 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2399 | } |
|
|
2400 | |
|
|
2401 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1230 | evpipe_init (EV_A); |
2402 | evpipe_init (EV_A); |
1231 | /* now iterate over everything, in case we missed something */ |
2403 | /* now iterate over everything, in case we missed something */ |
1232 | pipecb (EV_A_ &pipeev, EV_READ); |
2404 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2405 | #endif |
1233 | } |
2406 | } |
1234 | |
2407 | |
1235 | postfork = 0; |
2408 | postfork = 0; |
1236 | } |
2409 | } |
1237 | |
2410 | |
1238 | #if EV_MULTIPLICITY |
2411 | #if EV_MULTIPLICITY |
|
|
2412 | |
1239 | struct ev_loop * |
2413 | struct ev_loop * ecb_cold |
1240 | ev_loop_new (unsigned int flags) |
2414 | ev_loop_new (unsigned int flags) |
1241 | { |
2415 | { |
1242 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2416 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1243 | |
2417 | |
1244 | memset (loop, 0, sizeof (struct ev_loop)); |
2418 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1245 | |
|
|
1246 | loop_init (EV_A_ flags); |
2419 | loop_init (EV_A_ flags); |
1247 | |
2420 | |
1248 | if (ev_backend (EV_A)) |
2421 | if (ev_backend (EV_A)) |
1249 | return loop; |
2422 | return EV_A; |
1250 | |
2423 | |
|
|
2424 | ev_free (EV_A); |
1251 | return 0; |
2425 | return 0; |
1252 | } |
2426 | } |
1253 | |
2427 | |
1254 | void |
2428 | #endif /* multiplicity */ |
1255 | ev_loop_destroy (EV_P) |
|
|
1256 | { |
|
|
1257 | loop_destroy (EV_A); |
|
|
1258 | ev_free (loop); |
|
|
1259 | } |
|
|
1260 | |
2429 | |
1261 | void |
2430 | #if EV_VERIFY |
1262 | ev_loop_fork (EV_P) |
2431 | static void noinline ecb_cold |
|
|
2432 | verify_watcher (EV_P_ W w) |
1263 | { |
2433 | { |
1264 | postfork = 1; /* must be in line with ev_default_fork */ |
2434 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1265 | } |
|
|
1266 | |
2435 | |
|
|
2436 | if (w->pending) |
|
|
2437 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2438 | } |
|
|
2439 | |
|
|
2440 | static void noinline ecb_cold |
|
|
2441 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2442 | { |
|
|
2443 | int i; |
|
|
2444 | |
|
|
2445 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2446 | { |
|
|
2447 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2448 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2449 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2450 | |
|
|
2451 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2452 | } |
|
|
2453 | } |
|
|
2454 | |
|
|
2455 | static void noinline ecb_cold |
|
|
2456 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2457 | { |
|
|
2458 | while (cnt--) |
|
|
2459 | { |
|
|
2460 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2461 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2462 | } |
|
|
2463 | } |
|
|
2464 | #endif |
|
|
2465 | |
|
|
2466 | #if EV_FEATURE_API |
|
|
2467 | void ecb_cold |
|
|
2468 | ev_verify (EV_P) |
|
|
2469 | { |
|
|
2470 | #if EV_VERIFY |
|
|
2471 | int i; |
|
|
2472 | WL w; |
|
|
2473 | |
|
|
2474 | assert (activecnt >= -1); |
|
|
2475 | |
|
|
2476 | assert (fdchangemax >= fdchangecnt); |
|
|
2477 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2478 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2479 | |
|
|
2480 | assert (anfdmax >= 0); |
|
|
2481 | for (i = 0; i < anfdmax; ++i) |
|
|
2482 | for (w = anfds [i].head; w; w = w->next) |
|
|
2483 | { |
|
|
2484 | verify_watcher (EV_A_ (W)w); |
|
|
2485 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2486 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2487 | } |
|
|
2488 | |
|
|
2489 | assert (timermax >= timercnt); |
|
|
2490 | verify_heap (EV_A_ timers, timercnt); |
|
|
2491 | |
|
|
2492 | #if EV_PERIODIC_ENABLE |
|
|
2493 | assert (periodicmax >= periodiccnt); |
|
|
2494 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2495 | #endif |
|
|
2496 | |
|
|
2497 | for (i = NUMPRI; i--; ) |
|
|
2498 | { |
|
|
2499 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2500 | #if EV_IDLE_ENABLE |
|
|
2501 | assert (idleall >= 0); |
|
|
2502 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2503 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2504 | #endif |
|
|
2505 | } |
|
|
2506 | |
|
|
2507 | #if EV_FORK_ENABLE |
|
|
2508 | assert (forkmax >= forkcnt); |
|
|
2509 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2510 | #endif |
|
|
2511 | |
|
|
2512 | #if EV_CLEANUP_ENABLE |
|
|
2513 | assert (cleanupmax >= cleanupcnt); |
|
|
2514 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2515 | #endif |
|
|
2516 | |
|
|
2517 | #if EV_ASYNC_ENABLE |
|
|
2518 | assert (asyncmax >= asynccnt); |
|
|
2519 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2520 | #endif |
|
|
2521 | |
|
|
2522 | #if EV_PREPARE_ENABLE |
|
|
2523 | assert (preparemax >= preparecnt); |
|
|
2524 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2525 | #endif |
|
|
2526 | |
|
|
2527 | #if EV_CHECK_ENABLE |
|
|
2528 | assert (checkmax >= checkcnt); |
|
|
2529 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2530 | #endif |
|
|
2531 | |
|
|
2532 | # if 0 |
|
|
2533 | #if EV_CHILD_ENABLE |
|
|
2534 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2535 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2536 | #endif |
|
|
2537 | # endif |
|
|
2538 | #endif |
|
|
2539 | } |
1267 | #endif |
2540 | #endif |
1268 | |
2541 | |
1269 | #if EV_MULTIPLICITY |
2542 | #if EV_MULTIPLICITY |
1270 | struct ev_loop * |
2543 | struct ev_loop * ecb_cold |
1271 | ev_default_loop_init (unsigned int flags) |
|
|
1272 | #else |
2544 | #else |
1273 | int |
2545 | int |
|
|
2546 | #endif |
1274 | ev_default_loop (unsigned int flags) |
2547 | ev_default_loop (unsigned int flags) |
1275 | #endif |
|
|
1276 | { |
2548 | { |
1277 | if (!ev_default_loop_ptr) |
2549 | if (!ev_default_loop_ptr) |
1278 | { |
2550 | { |
1279 | #if EV_MULTIPLICITY |
2551 | #if EV_MULTIPLICITY |
1280 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2552 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1281 | #else |
2553 | #else |
1282 | ev_default_loop_ptr = 1; |
2554 | ev_default_loop_ptr = 1; |
1283 | #endif |
2555 | #endif |
1284 | |
2556 | |
1285 | loop_init (EV_A_ flags); |
2557 | loop_init (EV_A_ flags); |
1286 | |
2558 | |
1287 | if (ev_backend (EV_A)) |
2559 | if (ev_backend (EV_A)) |
1288 | { |
2560 | { |
1289 | #ifndef _WIN32 |
2561 | #if EV_CHILD_ENABLE |
1290 | ev_signal_init (&childev, childcb, SIGCHLD); |
2562 | ev_signal_init (&childev, childcb, SIGCHLD); |
1291 | ev_set_priority (&childev, EV_MAXPRI); |
2563 | ev_set_priority (&childev, EV_MAXPRI); |
1292 | ev_signal_start (EV_A_ &childev); |
2564 | ev_signal_start (EV_A_ &childev); |
1293 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2565 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1294 | #endif |
2566 | #endif |
… | |
… | |
1299 | |
2571 | |
1300 | return ev_default_loop_ptr; |
2572 | return ev_default_loop_ptr; |
1301 | } |
2573 | } |
1302 | |
2574 | |
1303 | void |
2575 | void |
1304 | ev_default_destroy (void) |
2576 | ev_loop_fork (EV_P) |
1305 | { |
2577 | { |
1306 | #if EV_MULTIPLICITY |
|
|
1307 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1308 | #endif |
|
|
1309 | |
|
|
1310 | #ifndef _WIN32 |
|
|
1311 | ev_ref (EV_A); /* child watcher */ |
|
|
1312 | ev_signal_stop (EV_A_ &childev); |
|
|
1313 | #endif |
|
|
1314 | |
|
|
1315 | loop_destroy (EV_A); |
|
|
1316 | } |
|
|
1317 | |
|
|
1318 | void |
|
|
1319 | ev_default_fork (void) |
|
|
1320 | { |
|
|
1321 | #if EV_MULTIPLICITY |
|
|
1322 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1323 | #endif |
|
|
1324 | |
|
|
1325 | if (backend) |
|
|
1326 | postfork = 1; /* must be in line with ev_loop_fork */ |
2578 | postfork = 1; /* must be in line with ev_default_fork */ |
1327 | } |
2579 | } |
1328 | |
2580 | |
1329 | /*****************************************************************************/ |
2581 | /*****************************************************************************/ |
1330 | |
2582 | |
1331 | void |
2583 | void |
1332 | ev_invoke (EV_P_ void *w, int revents) |
2584 | ev_invoke (EV_P_ void *w, int revents) |
1333 | { |
2585 | { |
1334 | EV_CB_INVOKE ((W)w, revents); |
2586 | EV_CB_INVOKE ((W)w, revents); |
1335 | } |
2587 | } |
1336 | |
2588 | |
1337 | void inline_speed |
2589 | unsigned int |
1338 | call_pending (EV_P) |
2590 | ev_pending_count (EV_P) |
|
|
2591 | { |
|
|
2592 | int pri; |
|
|
2593 | unsigned int count = 0; |
|
|
2594 | |
|
|
2595 | for (pri = NUMPRI; pri--; ) |
|
|
2596 | count += pendingcnt [pri]; |
|
|
2597 | |
|
|
2598 | return count; |
|
|
2599 | } |
|
|
2600 | |
|
|
2601 | void noinline |
|
|
2602 | ev_invoke_pending (EV_P) |
1339 | { |
2603 | { |
1340 | int pri; |
2604 | int pri; |
1341 | |
2605 | |
1342 | for (pri = NUMPRI; pri--; ) |
2606 | for (pri = NUMPRI; pri--; ) |
1343 | while (pendingcnt [pri]) |
2607 | while (pendingcnt [pri]) |
1344 | { |
2608 | { |
1345 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2609 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1346 | |
2610 | |
1347 | if (expect_true (p->w)) |
|
|
1348 | { |
|
|
1349 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1350 | |
|
|
1351 | p->w->pending = 0; |
2611 | p->w->pending = 0; |
1352 | EV_CB_INVOKE (p->w, p->events); |
2612 | EV_CB_INVOKE (p->w, p->events); |
1353 | } |
2613 | EV_FREQUENT_CHECK; |
1354 | } |
2614 | } |
1355 | } |
2615 | } |
1356 | |
2616 | |
1357 | void inline_size |
|
|
1358 | timers_reify (EV_P) |
|
|
1359 | { |
|
|
1360 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1361 | { |
|
|
1362 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1363 | |
|
|
1364 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1365 | |
|
|
1366 | /* first reschedule or stop timer */ |
|
|
1367 | if (w->repeat) |
|
|
1368 | { |
|
|
1369 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1370 | |
|
|
1371 | ((WT)w)->at += w->repeat; |
|
|
1372 | if (((WT)w)->at < mn_now) |
|
|
1373 | ((WT)w)->at = mn_now; |
|
|
1374 | |
|
|
1375 | downheap (timers, timercnt, 0); |
|
|
1376 | } |
|
|
1377 | else |
|
|
1378 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1379 | |
|
|
1380 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1381 | } |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | #if EV_PERIODIC_ENABLE |
|
|
1385 | void inline_size |
|
|
1386 | periodics_reify (EV_P) |
|
|
1387 | { |
|
|
1388 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1389 | { |
|
|
1390 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1391 | |
|
|
1392 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1393 | |
|
|
1394 | /* first reschedule or stop timer */ |
|
|
1395 | if (w->reschedule_cb) |
|
|
1396 | { |
|
|
1397 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1398 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1399 | downheap (periodics, periodiccnt, 0); |
|
|
1400 | } |
|
|
1401 | else if (w->interval) |
|
|
1402 | { |
|
|
1403 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1404 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1405 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1406 | downheap (periodics, periodiccnt, 0); |
|
|
1407 | } |
|
|
1408 | else |
|
|
1409 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1410 | |
|
|
1411 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1412 | } |
|
|
1413 | } |
|
|
1414 | |
|
|
1415 | static void noinline |
|
|
1416 | periodics_reschedule (EV_P) |
|
|
1417 | { |
|
|
1418 | int i; |
|
|
1419 | |
|
|
1420 | /* adjust periodics after time jump */ |
|
|
1421 | for (i = 0; i < periodiccnt; ++i) |
|
|
1422 | { |
|
|
1423 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1424 | |
|
|
1425 | if (w->reschedule_cb) |
|
|
1426 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1427 | else if (w->interval) |
|
|
1428 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1429 | } |
|
|
1430 | |
|
|
1431 | /* now rebuild the heap */ |
|
|
1432 | for (i = periodiccnt >> 1; i--; ) |
|
|
1433 | downheap (periodics, periodiccnt, i); |
|
|
1434 | } |
|
|
1435 | #endif |
|
|
1436 | |
|
|
1437 | #if EV_IDLE_ENABLE |
2617 | #if EV_IDLE_ENABLE |
1438 | void inline_size |
2618 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2619 | /* only when higher priorities are idle" logic */ |
|
|
2620 | inline_size void |
1439 | idle_reify (EV_P) |
2621 | idle_reify (EV_P) |
1440 | { |
2622 | { |
1441 | if (expect_false (idleall)) |
2623 | if (expect_false (idleall)) |
1442 | { |
2624 | { |
1443 | int pri; |
2625 | int pri; |
… | |
… | |
1455 | } |
2637 | } |
1456 | } |
2638 | } |
1457 | } |
2639 | } |
1458 | #endif |
2640 | #endif |
1459 | |
2641 | |
1460 | void inline_speed |
2642 | /* make timers pending */ |
|
|
2643 | inline_size void |
|
|
2644 | timers_reify (EV_P) |
|
|
2645 | { |
|
|
2646 | EV_FREQUENT_CHECK; |
|
|
2647 | |
|
|
2648 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2649 | { |
|
|
2650 | do |
|
|
2651 | { |
|
|
2652 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2653 | |
|
|
2654 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2655 | |
|
|
2656 | /* first reschedule or stop timer */ |
|
|
2657 | if (w->repeat) |
|
|
2658 | { |
|
|
2659 | ev_at (w) += w->repeat; |
|
|
2660 | if (ev_at (w) < mn_now) |
|
|
2661 | ev_at (w) = mn_now; |
|
|
2662 | |
|
|
2663 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2664 | |
|
|
2665 | ANHE_at_cache (timers [HEAP0]); |
|
|
2666 | downheap (timers, timercnt, HEAP0); |
|
|
2667 | } |
|
|
2668 | else |
|
|
2669 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2670 | |
|
|
2671 | EV_FREQUENT_CHECK; |
|
|
2672 | feed_reverse (EV_A_ (W)w); |
|
|
2673 | } |
|
|
2674 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2675 | |
|
|
2676 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2677 | } |
|
|
2678 | } |
|
|
2679 | |
|
|
2680 | #if EV_PERIODIC_ENABLE |
|
|
2681 | |
|
|
2682 | static void noinline |
|
|
2683 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2684 | { |
|
|
2685 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2686 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2687 | |
|
|
2688 | /* the above almost always errs on the low side */ |
|
|
2689 | while (at <= ev_rt_now) |
|
|
2690 | { |
|
|
2691 | ev_tstamp nat = at + w->interval; |
|
|
2692 | |
|
|
2693 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2694 | if (expect_false (nat == at)) |
|
|
2695 | { |
|
|
2696 | at = ev_rt_now; |
|
|
2697 | break; |
|
|
2698 | } |
|
|
2699 | |
|
|
2700 | at = nat; |
|
|
2701 | } |
|
|
2702 | |
|
|
2703 | ev_at (w) = at; |
|
|
2704 | } |
|
|
2705 | |
|
|
2706 | /* make periodics pending */ |
|
|
2707 | inline_size void |
|
|
2708 | periodics_reify (EV_P) |
|
|
2709 | { |
|
|
2710 | EV_FREQUENT_CHECK; |
|
|
2711 | |
|
|
2712 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2713 | { |
|
|
2714 | int feed_count = 0; |
|
|
2715 | |
|
|
2716 | do |
|
|
2717 | { |
|
|
2718 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2719 | |
|
|
2720 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2721 | |
|
|
2722 | /* first reschedule or stop timer */ |
|
|
2723 | if (w->reschedule_cb) |
|
|
2724 | { |
|
|
2725 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2726 | |
|
|
2727 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2728 | |
|
|
2729 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2730 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2731 | } |
|
|
2732 | else if (w->interval) |
|
|
2733 | { |
|
|
2734 | periodic_recalc (EV_A_ w); |
|
|
2735 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2736 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2737 | } |
|
|
2738 | else |
|
|
2739 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2740 | |
|
|
2741 | EV_FREQUENT_CHECK; |
|
|
2742 | feed_reverse (EV_A_ (W)w); |
|
|
2743 | } |
|
|
2744 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2745 | |
|
|
2746 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2747 | } |
|
|
2748 | } |
|
|
2749 | |
|
|
2750 | /* simply recalculate all periodics */ |
|
|
2751 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2752 | static void noinline ecb_cold |
|
|
2753 | periodics_reschedule (EV_P) |
|
|
2754 | { |
|
|
2755 | int i; |
|
|
2756 | |
|
|
2757 | /* adjust periodics after time jump */ |
|
|
2758 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2759 | { |
|
|
2760 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2761 | |
|
|
2762 | if (w->reschedule_cb) |
|
|
2763 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2764 | else if (w->interval) |
|
|
2765 | periodic_recalc (EV_A_ w); |
|
|
2766 | |
|
|
2767 | ANHE_at_cache (periodics [i]); |
|
|
2768 | } |
|
|
2769 | |
|
|
2770 | reheap (periodics, periodiccnt); |
|
|
2771 | } |
|
|
2772 | #endif |
|
|
2773 | |
|
|
2774 | /* adjust all timers by a given offset */ |
|
|
2775 | static void noinline ecb_cold |
|
|
2776 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2777 | { |
|
|
2778 | int i; |
|
|
2779 | |
|
|
2780 | for (i = 0; i < timercnt; ++i) |
|
|
2781 | { |
|
|
2782 | ANHE *he = timers + i + HEAP0; |
|
|
2783 | ANHE_w (*he)->at += adjust; |
|
|
2784 | ANHE_at_cache (*he); |
|
|
2785 | } |
|
|
2786 | } |
|
|
2787 | |
|
|
2788 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2789 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2790 | inline_speed void |
1461 | time_update (EV_P_ ev_tstamp max_block) |
2791 | time_update (EV_P_ ev_tstamp max_block) |
1462 | { |
2792 | { |
1463 | int i; |
|
|
1464 | |
|
|
1465 | #if EV_USE_MONOTONIC |
2793 | #if EV_USE_MONOTONIC |
1466 | if (expect_true (have_monotonic)) |
2794 | if (expect_true (have_monotonic)) |
1467 | { |
2795 | { |
|
|
2796 | int i; |
1468 | ev_tstamp odiff = rtmn_diff; |
2797 | ev_tstamp odiff = rtmn_diff; |
1469 | |
2798 | |
1470 | mn_now = get_clock (); |
2799 | mn_now = get_clock (); |
1471 | |
2800 | |
1472 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2801 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1488 | * doesn't hurt either as we only do this on time-jumps or |
2817 | * doesn't hurt either as we only do this on time-jumps or |
1489 | * in the unlikely event of having been preempted here. |
2818 | * in the unlikely event of having been preempted here. |
1490 | */ |
2819 | */ |
1491 | for (i = 4; --i; ) |
2820 | for (i = 4; --i; ) |
1492 | { |
2821 | { |
|
|
2822 | ev_tstamp diff; |
1493 | rtmn_diff = ev_rt_now - mn_now; |
2823 | rtmn_diff = ev_rt_now - mn_now; |
1494 | |
2824 | |
1495 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2825 | diff = odiff - rtmn_diff; |
|
|
2826 | |
|
|
2827 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1496 | return; /* all is well */ |
2828 | return; /* all is well */ |
1497 | |
2829 | |
1498 | ev_rt_now = ev_time (); |
2830 | ev_rt_now = ev_time (); |
1499 | mn_now = get_clock (); |
2831 | mn_now = get_clock (); |
1500 | now_floor = mn_now; |
2832 | now_floor = mn_now; |
1501 | } |
2833 | } |
1502 | |
2834 | |
|
|
2835 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2836 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1503 | # if EV_PERIODIC_ENABLE |
2837 | # if EV_PERIODIC_ENABLE |
1504 | periodics_reschedule (EV_A); |
2838 | periodics_reschedule (EV_A); |
1505 | # endif |
2839 | # endif |
1506 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1507 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1508 | } |
2840 | } |
1509 | else |
2841 | else |
1510 | #endif |
2842 | #endif |
1511 | { |
2843 | { |
1512 | ev_rt_now = ev_time (); |
2844 | ev_rt_now = ev_time (); |
1513 | |
2845 | |
1514 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2846 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1515 | { |
2847 | { |
|
|
2848 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2849 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1516 | #if EV_PERIODIC_ENABLE |
2850 | #if EV_PERIODIC_ENABLE |
1517 | periodics_reschedule (EV_A); |
2851 | periodics_reschedule (EV_A); |
1518 | #endif |
2852 | #endif |
1519 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1520 | for (i = 0; i < timercnt; ++i) |
|
|
1521 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1522 | } |
2853 | } |
1523 | |
2854 | |
1524 | mn_now = ev_rt_now; |
2855 | mn_now = ev_rt_now; |
1525 | } |
2856 | } |
1526 | } |
2857 | } |
1527 | |
2858 | |
1528 | void |
2859 | void |
1529 | ev_ref (EV_P) |
|
|
1530 | { |
|
|
1531 | ++activecnt; |
|
|
1532 | } |
|
|
1533 | |
|
|
1534 | void |
|
|
1535 | ev_unref (EV_P) |
|
|
1536 | { |
|
|
1537 | --activecnt; |
|
|
1538 | } |
|
|
1539 | |
|
|
1540 | static int loop_done; |
|
|
1541 | |
|
|
1542 | void |
|
|
1543 | ev_loop (EV_P_ int flags) |
2860 | ev_run (EV_P_ int flags) |
1544 | { |
2861 | { |
1545 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2862 | #if EV_FEATURE_API |
1546 | ? EVUNLOOP_ONE |
2863 | ++loop_depth; |
1547 | : EVUNLOOP_CANCEL; |
2864 | #endif |
1548 | |
2865 | |
|
|
2866 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2867 | |
|
|
2868 | loop_done = EVBREAK_CANCEL; |
|
|
2869 | |
1549 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2870 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1550 | |
2871 | |
1551 | do |
2872 | do |
1552 | { |
2873 | { |
|
|
2874 | #if EV_VERIFY >= 2 |
|
|
2875 | ev_verify (EV_A); |
|
|
2876 | #endif |
|
|
2877 | |
1553 | #ifndef _WIN32 |
2878 | #ifndef _WIN32 |
1554 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2879 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1555 | if (expect_false (getpid () != curpid)) |
2880 | if (expect_false (getpid () != curpid)) |
1556 | { |
2881 | { |
1557 | curpid = getpid (); |
2882 | curpid = getpid (); |
… | |
… | |
1563 | /* we might have forked, so queue fork handlers */ |
2888 | /* we might have forked, so queue fork handlers */ |
1564 | if (expect_false (postfork)) |
2889 | if (expect_false (postfork)) |
1565 | if (forkcnt) |
2890 | if (forkcnt) |
1566 | { |
2891 | { |
1567 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2892 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1568 | call_pending (EV_A); |
2893 | EV_INVOKE_PENDING; |
1569 | } |
2894 | } |
1570 | #endif |
2895 | #endif |
1571 | |
2896 | |
|
|
2897 | #if EV_PREPARE_ENABLE |
1572 | /* queue prepare watchers (and execute them) */ |
2898 | /* queue prepare watchers (and execute them) */ |
1573 | if (expect_false (preparecnt)) |
2899 | if (expect_false (preparecnt)) |
1574 | { |
2900 | { |
1575 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2901 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1576 | call_pending (EV_A); |
2902 | EV_INVOKE_PENDING; |
1577 | } |
2903 | } |
|
|
2904 | #endif |
1578 | |
2905 | |
1579 | if (expect_false (!activecnt)) |
2906 | if (expect_false (loop_done)) |
1580 | break; |
2907 | break; |
1581 | |
2908 | |
1582 | /* we might have forked, so reify kernel state if necessary */ |
2909 | /* we might have forked, so reify kernel state if necessary */ |
1583 | if (expect_false (postfork)) |
2910 | if (expect_false (postfork)) |
1584 | loop_fork (EV_A); |
2911 | loop_fork (EV_A); |
… | |
… | |
1589 | /* calculate blocking time */ |
2916 | /* calculate blocking time */ |
1590 | { |
2917 | { |
1591 | ev_tstamp waittime = 0.; |
2918 | ev_tstamp waittime = 0.; |
1592 | ev_tstamp sleeptime = 0.; |
2919 | ev_tstamp sleeptime = 0.; |
1593 | |
2920 | |
|
|
2921 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2922 | ev_tstamp prev_mn_now = mn_now; |
|
|
2923 | |
|
|
2924 | /* update time to cancel out callback processing overhead */ |
|
|
2925 | time_update (EV_A_ 1e100); |
|
|
2926 | |
|
|
2927 | /* from now on, we want a pipe-wake-up */ |
|
|
2928 | pipe_write_wanted = 1; |
|
|
2929 | |
|
|
2930 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2931 | |
1594 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2932 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1595 | { |
2933 | { |
1596 | /* update time to cancel out callback processing overhead */ |
|
|
1597 | time_update (EV_A_ 1e100); |
|
|
1598 | |
|
|
1599 | waittime = MAX_BLOCKTIME; |
2934 | waittime = MAX_BLOCKTIME; |
1600 | |
2935 | |
1601 | if (timercnt) |
2936 | if (timercnt) |
1602 | { |
2937 | { |
1603 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2938 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1604 | if (waittime > to) waittime = to; |
2939 | if (waittime > to) waittime = to; |
1605 | } |
2940 | } |
1606 | |
2941 | |
1607 | #if EV_PERIODIC_ENABLE |
2942 | #if EV_PERIODIC_ENABLE |
1608 | if (periodiccnt) |
2943 | if (periodiccnt) |
1609 | { |
2944 | { |
1610 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2945 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1611 | if (waittime > to) waittime = to; |
2946 | if (waittime > to) waittime = to; |
1612 | } |
2947 | } |
1613 | #endif |
2948 | #endif |
1614 | |
2949 | |
|
|
2950 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1615 | if (expect_false (waittime < timeout_blocktime)) |
2951 | if (expect_false (waittime < timeout_blocktime)) |
1616 | waittime = timeout_blocktime; |
2952 | waittime = timeout_blocktime; |
1617 | |
2953 | |
1618 | sleeptime = waittime - backend_fudge; |
2954 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
2955 | /* to pass a minimum nonzero value to the backend */ |
|
|
2956 | if (expect_false (waittime < backend_mintime)) |
|
|
2957 | waittime = backend_mintime; |
1619 | |
2958 | |
|
|
2959 | /* extra check because io_blocktime is commonly 0 */ |
1620 | if (expect_true (sleeptime > io_blocktime)) |
2960 | if (expect_false (io_blocktime)) |
1621 | sleeptime = io_blocktime; |
|
|
1622 | |
|
|
1623 | if (sleeptime) |
|
|
1624 | { |
2961 | { |
|
|
2962 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2963 | |
|
|
2964 | if (sleeptime > waittime - backend_mintime) |
|
|
2965 | sleeptime = waittime - backend_mintime; |
|
|
2966 | |
|
|
2967 | if (expect_true (sleeptime > 0.)) |
|
|
2968 | { |
1625 | ev_sleep (sleeptime); |
2969 | ev_sleep (sleeptime); |
1626 | waittime -= sleeptime; |
2970 | waittime -= sleeptime; |
|
|
2971 | } |
1627 | } |
2972 | } |
1628 | } |
2973 | } |
1629 | |
2974 | |
|
|
2975 | #if EV_FEATURE_API |
1630 | ++loop_count; |
2976 | ++loop_count; |
|
|
2977 | #endif |
|
|
2978 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1631 | backend_poll (EV_A_ waittime); |
2979 | backend_poll (EV_A_ waittime); |
|
|
2980 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2981 | |
|
|
2982 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
|
|
2983 | |
|
|
2984 | if (pipe_write_skipped) |
|
|
2985 | { |
|
|
2986 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
2987 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
2988 | } |
|
|
2989 | |
1632 | |
2990 | |
1633 | /* update ev_rt_now, do magic */ |
2991 | /* update ev_rt_now, do magic */ |
1634 | time_update (EV_A_ waittime + sleeptime); |
2992 | time_update (EV_A_ waittime + sleeptime); |
1635 | } |
2993 | } |
1636 | |
2994 | |
… | |
… | |
1643 | #if EV_IDLE_ENABLE |
3001 | #if EV_IDLE_ENABLE |
1644 | /* queue idle watchers unless other events are pending */ |
3002 | /* queue idle watchers unless other events are pending */ |
1645 | idle_reify (EV_A); |
3003 | idle_reify (EV_A); |
1646 | #endif |
3004 | #endif |
1647 | |
3005 | |
|
|
3006 | #if EV_CHECK_ENABLE |
1648 | /* queue check watchers, to be executed first */ |
3007 | /* queue check watchers, to be executed first */ |
1649 | if (expect_false (checkcnt)) |
3008 | if (expect_false (checkcnt)) |
1650 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3009 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3010 | #endif |
1651 | |
3011 | |
1652 | call_pending (EV_A); |
3012 | EV_INVOKE_PENDING; |
1653 | |
|
|
1654 | } |
3013 | } |
1655 | while (expect_true (activecnt && !loop_done)); |
3014 | while (expect_true ( |
|
|
3015 | activecnt |
|
|
3016 | && !loop_done |
|
|
3017 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
3018 | )); |
1656 | |
3019 | |
1657 | if (loop_done == EVUNLOOP_ONE) |
3020 | if (loop_done == EVBREAK_ONE) |
1658 | loop_done = EVUNLOOP_CANCEL; |
3021 | loop_done = EVBREAK_CANCEL; |
|
|
3022 | |
|
|
3023 | #if EV_FEATURE_API |
|
|
3024 | --loop_depth; |
|
|
3025 | #endif |
1659 | } |
3026 | } |
1660 | |
3027 | |
1661 | void |
3028 | void |
1662 | ev_unloop (EV_P_ int how) |
3029 | ev_break (EV_P_ int how) |
1663 | { |
3030 | { |
1664 | loop_done = how; |
3031 | loop_done = how; |
1665 | } |
3032 | } |
1666 | |
3033 | |
|
|
3034 | void |
|
|
3035 | ev_ref (EV_P) |
|
|
3036 | { |
|
|
3037 | ++activecnt; |
|
|
3038 | } |
|
|
3039 | |
|
|
3040 | void |
|
|
3041 | ev_unref (EV_P) |
|
|
3042 | { |
|
|
3043 | --activecnt; |
|
|
3044 | } |
|
|
3045 | |
|
|
3046 | void |
|
|
3047 | ev_now_update (EV_P) |
|
|
3048 | { |
|
|
3049 | time_update (EV_A_ 1e100); |
|
|
3050 | } |
|
|
3051 | |
|
|
3052 | void |
|
|
3053 | ev_suspend (EV_P) |
|
|
3054 | { |
|
|
3055 | ev_now_update (EV_A); |
|
|
3056 | } |
|
|
3057 | |
|
|
3058 | void |
|
|
3059 | ev_resume (EV_P) |
|
|
3060 | { |
|
|
3061 | ev_tstamp mn_prev = mn_now; |
|
|
3062 | |
|
|
3063 | ev_now_update (EV_A); |
|
|
3064 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3065 | #if EV_PERIODIC_ENABLE |
|
|
3066 | /* TODO: really do this? */ |
|
|
3067 | periodics_reschedule (EV_A); |
|
|
3068 | #endif |
|
|
3069 | } |
|
|
3070 | |
1667 | /*****************************************************************************/ |
3071 | /*****************************************************************************/ |
|
|
3072 | /* singly-linked list management, used when the expected list length is short */ |
1668 | |
3073 | |
1669 | void inline_size |
3074 | inline_size void |
1670 | wlist_add (WL *head, WL elem) |
3075 | wlist_add (WL *head, WL elem) |
1671 | { |
3076 | { |
1672 | elem->next = *head; |
3077 | elem->next = *head; |
1673 | *head = elem; |
3078 | *head = elem; |
1674 | } |
3079 | } |
1675 | |
3080 | |
1676 | void inline_size |
3081 | inline_size void |
1677 | wlist_del (WL *head, WL elem) |
3082 | wlist_del (WL *head, WL elem) |
1678 | { |
3083 | { |
1679 | while (*head) |
3084 | while (*head) |
1680 | { |
3085 | { |
1681 | if (*head == elem) |
3086 | if (expect_true (*head == elem)) |
1682 | { |
3087 | { |
1683 | *head = elem->next; |
3088 | *head = elem->next; |
1684 | return; |
3089 | break; |
1685 | } |
3090 | } |
1686 | |
3091 | |
1687 | head = &(*head)->next; |
3092 | head = &(*head)->next; |
1688 | } |
3093 | } |
1689 | } |
3094 | } |
1690 | |
3095 | |
1691 | void inline_speed |
3096 | /* internal, faster, version of ev_clear_pending */ |
|
|
3097 | inline_speed void |
1692 | clear_pending (EV_P_ W w) |
3098 | clear_pending (EV_P_ W w) |
1693 | { |
3099 | { |
1694 | if (w->pending) |
3100 | if (w->pending) |
1695 | { |
3101 | { |
1696 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3102 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1697 | w->pending = 0; |
3103 | w->pending = 0; |
1698 | } |
3104 | } |
1699 | } |
3105 | } |
1700 | |
3106 | |
1701 | int |
3107 | int |
… | |
… | |
1705 | int pending = w_->pending; |
3111 | int pending = w_->pending; |
1706 | |
3112 | |
1707 | if (expect_true (pending)) |
3113 | if (expect_true (pending)) |
1708 | { |
3114 | { |
1709 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3115 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3116 | p->w = (W)&pending_w; |
1710 | w_->pending = 0; |
3117 | w_->pending = 0; |
1711 | p->w = 0; |
|
|
1712 | return p->events; |
3118 | return p->events; |
1713 | } |
3119 | } |
1714 | else |
3120 | else |
1715 | return 0; |
3121 | return 0; |
1716 | } |
3122 | } |
1717 | |
3123 | |
1718 | void inline_size |
3124 | inline_size void |
1719 | pri_adjust (EV_P_ W w) |
3125 | pri_adjust (EV_P_ W w) |
1720 | { |
3126 | { |
1721 | int pri = w->priority; |
3127 | int pri = ev_priority (w); |
1722 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3128 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1723 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3129 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1724 | w->priority = pri; |
3130 | ev_set_priority (w, pri); |
1725 | } |
3131 | } |
1726 | |
3132 | |
1727 | void inline_speed |
3133 | inline_speed void |
1728 | ev_start (EV_P_ W w, int active) |
3134 | ev_start (EV_P_ W w, int active) |
1729 | { |
3135 | { |
1730 | pri_adjust (EV_A_ w); |
3136 | pri_adjust (EV_A_ w); |
1731 | w->active = active; |
3137 | w->active = active; |
1732 | ev_ref (EV_A); |
3138 | ev_ref (EV_A); |
1733 | } |
3139 | } |
1734 | |
3140 | |
1735 | void inline_size |
3141 | inline_size void |
1736 | ev_stop (EV_P_ W w) |
3142 | ev_stop (EV_P_ W w) |
1737 | { |
3143 | { |
1738 | ev_unref (EV_A); |
3144 | ev_unref (EV_A); |
1739 | w->active = 0; |
3145 | w->active = 0; |
1740 | } |
3146 | } |
… | |
… | |
1747 | int fd = w->fd; |
3153 | int fd = w->fd; |
1748 | |
3154 | |
1749 | if (expect_false (ev_is_active (w))) |
3155 | if (expect_false (ev_is_active (w))) |
1750 | return; |
3156 | return; |
1751 | |
3157 | |
1752 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3158 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
3159 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
3160 | |
|
|
3161 | EV_FREQUENT_CHECK; |
1753 | |
3162 | |
1754 | ev_start (EV_A_ (W)w, 1); |
3163 | ev_start (EV_A_ (W)w, 1); |
1755 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
3164 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1756 | wlist_add (&anfds[fd].head, (WL)w); |
3165 | wlist_add (&anfds[fd].head, (WL)w); |
1757 | |
3166 | |
1758 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
3167 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1759 | w->events &= ~EV_IOFDSET; |
3168 | w->events &= ~EV__IOFDSET; |
|
|
3169 | |
|
|
3170 | EV_FREQUENT_CHECK; |
1760 | } |
3171 | } |
1761 | |
3172 | |
1762 | void noinline |
3173 | void noinline |
1763 | ev_io_stop (EV_P_ ev_io *w) |
3174 | ev_io_stop (EV_P_ ev_io *w) |
1764 | { |
3175 | { |
1765 | clear_pending (EV_A_ (W)w); |
3176 | clear_pending (EV_A_ (W)w); |
1766 | if (expect_false (!ev_is_active (w))) |
3177 | if (expect_false (!ev_is_active (w))) |
1767 | return; |
3178 | return; |
1768 | |
3179 | |
1769 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3180 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
3181 | |
|
|
3182 | EV_FREQUENT_CHECK; |
1770 | |
3183 | |
1771 | wlist_del (&anfds[w->fd].head, (WL)w); |
3184 | wlist_del (&anfds[w->fd].head, (WL)w); |
1772 | ev_stop (EV_A_ (W)w); |
3185 | ev_stop (EV_A_ (W)w); |
1773 | |
3186 | |
1774 | fd_change (EV_A_ w->fd, 1); |
3187 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
3188 | |
|
|
3189 | EV_FREQUENT_CHECK; |
1775 | } |
3190 | } |
1776 | |
3191 | |
1777 | void noinline |
3192 | void noinline |
1778 | ev_timer_start (EV_P_ ev_timer *w) |
3193 | ev_timer_start (EV_P_ ev_timer *w) |
1779 | { |
3194 | { |
1780 | if (expect_false (ev_is_active (w))) |
3195 | if (expect_false (ev_is_active (w))) |
1781 | return; |
3196 | return; |
1782 | |
3197 | |
1783 | ((WT)w)->at += mn_now; |
3198 | ev_at (w) += mn_now; |
1784 | |
3199 | |
1785 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3200 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1786 | |
3201 | |
|
|
3202 | EV_FREQUENT_CHECK; |
|
|
3203 | |
|
|
3204 | ++timercnt; |
1787 | ev_start (EV_A_ (W)w, ++timercnt); |
3205 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1788 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
3206 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1789 | timers [timercnt - 1] = (WT)w; |
3207 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1790 | upheap (timers, timercnt - 1); |
3208 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
3209 | upheap (timers, ev_active (w)); |
1791 | |
3210 | |
|
|
3211 | EV_FREQUENT_CHECK; |
|
|
3212 | |
1792 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
3213 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1793 | } |
3214 | } |
1794 | |
3215 | |
1795 | void noinline |
3216 | void noinline |
1796 | ev_timer_stop (EV_P_ ev_timer *w) |
3217 | ev_timer_stop (EV_P_ ev_timer *w) |
1797 | { |
3218 | { |
1798 | clear_pending (EV_A_ (W)w); |
3219 | clear_pending (EV_A_ (W)w); |
1799 | if (expect_false (!ev_is_active (w))) |
3220 | if (expect_false (!ev_is_active (w))) |
1800 | return; |
3221 | return; |
1801 | |
3222 | |
1802 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
3223 | EV_FREQUENT_CHECK; |
1803 | |
3224 | |
1804 | { |
3225 | { |
1805 | int active = ((W)w)->active; |
3226 | int active = ev_active (w); |
1806 | |
3227 | |
|
|
3228 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
3229 | |
|
|
3230 | --timercnt; |
|
|
3231 | |
1807 | if (expect_true (--active < --timercnt)) |
3232 | if (expect_true (active < timercnt + HEAP0)) |
1808 | { |
3233 | { |
1809 | timers [active] = timers [timercnt]; |
3234 | timers [active] = timers [timercnt + HEAP0]; |
1810 | adjustheap (timers, timercnt, active); |
3235 | adjustheap (timers, timercnt, active); |
1811 | } |
3236 | } |
1812 | } |
3237 | } |
1813 | |
3238 | |
1814 | ((WT)w)->at -= mn_now; |
3239 | ev_at (w) -= mn_now; |
1815 | |
3240 | |
1816 | ev_stop (EV_A_ (W)w); |
3241 | ev_stop (EV_A_ (W)w); |
|
|
3242 | |
|
|
3243 | EV_FREQUENT_CHECK; |
1817 | } |
3244 | } |
1818 | |
3245 | |
1819 | void noinline |
3246 | void noinline |
1820 | ev_timer_again (EV_P_ ev_timer *w) |
3247 | ev_timer_again (EV_P_ ev_timer *w) |
1821 | { |
3248 | { |
|
|
3249 | EV_FREQUENT_CHECK; |
|
|
3250 | |
1822 | if (ev_is_active (w)) |
3251 | if (ev_is_active (w)) |
1823 | { |
3252 | { |
1824 | if (w->repeat) |
3253 | if (w->repeat) |
1825 | { |
3254 | { |
1826 | ((WT)w)->at = mn_now + w->repeat; |
3255 | ev_at (w) = mn_now + w->repeat; |
|
|
3256 | ANHE_at_cache (timers [ev_active (w)]); |
1827 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
3257 | adjustheap (timers, timercnt, ev_active (w)); |
1828 | } |
3258 | } |
1829 | else |
3259 | else |
1830 | ev_timer_stop (EV_A_ w); |
3260 | ev_timer_stop (EV_A_ w); |
1831 | } |
3261 | } |
1832 | else if (w->repeat) |
3262 | else if (w->repeat) |
1833 | { |
3263 | { |
1834 | w->at = w->repeat; |
3264 | ev_at (w) = w->repeat; |
1835 | ev_timer_start (EV_A_ w); |
3265 | ev_timer_start (EV_A_ w); |
1836 | } |
3266 | } |
|
|
3267 | |
|
|
3268 | EV_FREQUENT_CHECK; |
|
|
3269 | } |
|
|
3270 | |
|
|
3271 | ev_tstamp |
|
|
3272 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
3273 | { |
|
|
3274 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1837 | } |
3275 | } |
1838 | |
3276 | |
1839 | #if EV_PERIODIC_ENABLE |
3277 | #if EV_PERIODIC_ENABLE |
1840 | void noinline |
3278 | void noinline |
1841 | ev_periodic_start (EV_P_ ev_periodic *w) |
3279 | ev_periodic_start (EV_P_ ev_periodic *w) |
1842 | { |
3280 | { |
1843 | if (expect_false (ev_is_active (w))) |
3281 | if (expect_false (ev_is_active (w))) |
1844 | return; |
3282 | return; |
1845 | |
3283 | |
1846 | if (w->reschedule_cb) |
3284 | if (w->reschedule_cb) |
1847 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
3285 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1848 | else if (w->interval) |
3286 | else if (w->interval) |
1849 | { |
3287 | { |
1850 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3288 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1851 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3289 | periodic_recalc (EV_A_ w); |
1852 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1853 | } |
3290 | } |
1854 | else |
3291 | else |
1855 | ((WT)w)->at = w->offset; |
3292 | ev_at (w) = w->offset; |
1856 | |
3293 | |
|
|
3294 | EV_FREQUENT_CHECK; |
|
|
3295 | |
|
|
3296 | ++periodiccnt; |
1857 | ev_start (EV_A_ (W)w, ++periodiccnt); |
3297 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1858 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
3298 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1859 | periodics [periodiccnt - 1] = (WT)w; |
3299 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1860 | upheap (periodics, periodiccnt - 1); |
3300 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
3301 | upheap (periodics, ev_active (w)); |
1861 | |
3302 | |
|
|
3303 | EV_FREQUENT_CHECK; |
|
|
3304 | |
1862 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
3305 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1863 | } |
3306 | } |
1864 | |
3307 | |
1865 | void noinline |
3308 | void noinline |
1866 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3309 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1867 | { |
3310 | { |
1868 | clear_pending (EV_A_ (W)w); |
3311 | clear_pending (EV_A_ (W)w); |
1869 | if (expect_false (!ev_is_active (w))) |
3312 | if (expect_false (!ev_is_active (w))) |
1870 | return; |
3313 | return; |
1871 | |
3314 | |
1872 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
3315 | EV_FREQUENT_CHECK; |
1873 | |
3316 | |
1874 | { |
3317 | { |
1875 | int active = ((W)w)->active; |
3318 | int active = ev_active (w); |
1876 | |
3319 | |
|
|
3320 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
3321 | |
|
|
3322 | --periodiccnt; |
|
|
3323 | |
1877 | if (expect_true (--active < --periodiccnt)) |
3324 | if (expect_true (active < periodiccnt + HEAP0)) |
1878 | { |
3325 | { |
1879 | periodics [active] = periodics [periodiccnt]; |
3326 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1880 | adjustheap (periodics, periodiccnt, active); |
3327 | adjustheap (periodics, periodiccnt, active); |
1881 | } |
3328 | } |
1882 | } |
3329 | } |
1883 | |
3330 | |
1884 | ev_stop (EV_A_ (W)w); |
3331 | ev_stop (EV_A_ (W)w); |
|
|
3332 | |
|
|
3333 | EV_FREQUENT_CHECK; |
1885 | } |
3334 | } |
1886 | |
3335 | |
1887 | void noinline |
3336 | void noinline |
1888 | ev_periodic_again (EV_P_ ev_periodic *w) |
3337 | ev_periodic_again (EV_P_ ev_periodic *w) |
1889 | { |
3338 | { |
… | |
… | |
1895 | |
3344 | |
1896 | #ifndef SA_RESTART |
3345 | #ifndef SA_RESTART |
1897 | # define SA_RESTART 0 |
3346 | # define SA_RESTART 0 |
1898 | #endif |
3347 | #endif |
1899 | |
3348 | |
|
|
3349 | #if EV_SIGNAL_ENABLE |
|
|
3350 | |
1900 | void noinline |
3351 | void noinline |
1901 | ev_signal_start (EV_P_ ev_signal *w) |
3352 | ev_signal_start (EV_P_ ev_signal *w) |
1902 | { |
3353 | { |
1903 | #if EV_MULTIPLICITY |
|
|
1904 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1905 | #endif |
|
|
1906 | if (expect_false (ev_is_active (w))) |
3354 | if (expect_false (ev_is_active (w))) |
1907 | return; |
3355 | return; |
1908 | |
3356 | |
1909 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3357 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1910 | |
3358 | |
1911 | evpipe_init (EV_A); |
3359 | #if EV_MULTIPLICITY |
|
|
3360 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3361 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
1912 | |
3362 | |
|
|
3363 | signals [w->signum - 1].loop = EV_A; |
|
|
3364 | #endif |
|
|
3365 | |
|
|
3366 | EV_FREQUENT_CHECK; |
|
|
3367 | |
|
|
3368 | #if EV_USE_SIGNALFD |
|
|
3369 | if (sigfd == -2) |
1913 | { |
3370 | { |
1914 | #ifndef _WIN32 |
3371 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
1915 | sigset_t full, prev; |
3372 | if (sigfd < 0 && errno == EINVAL) |
1916 | sigfillset (&full); |
3373 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
1917 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1918 | #endif |
|
|
1919 | |
3374 | |
1920 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
3375 | if (sigfd >= 0) |
|
|
3376 | { |
|
|
3377 | fd_intern (sigfd); /* doing it twice will not hurt */ |
1921 | |
3378 | |
1922 | #ifndef _WIN32 |
3379 | sigemptyset (&sigfd_set); |
1923 | sigprocmask (SIG_SETMASK, &prev, 0); |
3380 | |
1924 | #endif |
3381 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3382 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3383 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3384 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3385 | } |
1925 | } |
3386 | } |
|
|
3387 | |
|
|
3388 | if (sigfd >= 0) |
|
|
3389 | { |
|
|
3390 | /* TODO: check .head */ |
|
|
3391 | sigaddset (&sigfd_set, w->signum); |
|
|
3392 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3393 | |
|
|
3394 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3395 | } |
|
|
3396 | #endif |
1926 | |
3397 | |
1927 | ev_start (EV_A_ (W)w, 1); |
3398 | ev_start (EV_A_ (W)w, 1); |
1928 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3399 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1929 | |
3400 | |
1930 | if (!((WL)w)->next) |
3401 | if (!((WL)w)->next) |
|
|
3402 | # if EV_USE_SIGNALFD |
|
|
3403 | if (sigfd < 0) /*TODO*/ |
|
|
3404 | # endif |
1931 | { |
3405 | { |
1932 | #if _WIN32 |
3406 | # ifdef _WIN32 |
|
|
3407 | evpipe_init (EV_A); |
|
|
3408 | |
1933 | signal (w->signum, sighandler); |
3409 | signal (w->signum, ev_sighandler); |
1934 | #else |
3410 | # else |
1935 | struct sigaction sa; |
3411 | struct sigaction sa; |
|
|
3412 | |
|
|
3413 | evpipe_init (EV_A); |
|
|
3414 | |
1936 | sa.sa_handler = sighandler; |
3415 | sa.sa_handler = ev_sighandler; |
1937 | sigfillset (&sa.sa_mask); |
3416 | sigfillset (&sa.sa_mask); |
1938 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3417 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1939 | sigaction (w->signum, &sa, 0); |
3418 | sigaction (w->signum, &sa, 0); |
|
|
3419 | |
|
|
3420 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3421 | { |
|
|
3422 | sigemptyset (&sa.sa_mask); |
|
|
3423 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3424 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3425 | } |
1940 | #endif |
3426 | #endif |
1941 | } |
3427 | } |
|
|
3428 | |
|
|
3429 | EV_FREQUENT_CHECK; |
1942 | } |
3430 | } |
1943 | |
3431 | |
1944 | void noinline |
3432 | void noinline |
1945 | ev_signal_stop (EV_P_ ev_signal *w) |
3433 | ev_signal_stop (EV_P_ ev_signal *w) |
1946 | { |
3434 | { |
1947 | clear_pending (EV_A_ (W)w); |
3435 | clear_pending (EV_A_ (W)w); |
1948 | if (expect_false (!ev_is_active (w))) |
3436 | if (expect_false (!ev_is_active (w))) |
1949 | return; |
3437 | return; |
1950 | |
3438 | |
|
|
3439 | EV_FREQUENT_CHECK; |
|
|
3440 | |
1951 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3441 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1952 | ev_stop (EV_A_ (W)w); |
3442 | ev_stop (EV_A_ (W)w); |
1953 | |
3443 | |
1954 | if (!signals [w->signum - 1].head) |
3444 | if (!signals [w->signum - 1].head) |
|
|
3445 | { |
|
|
3446 | #if EV_MULTIPLICITY |
|
|
3447 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3448 | #endif |
|
|
3449 | #if EV_USE_SIGNALFD |
|
|
3450 | if (sigfd >= 0) |
|
|
3451 | { |
|
|
3452 | sigset_t ss; |
|
|
3453 | |
|
|
3454 | sigemptyset (&ss); |
|
|
3455 | sigaddset (&ss, w->signum); |
|
|
3456 | sigdelset (&sigfd_set, w->signum); |
|
|
3457 | |
|
|
3458 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3459 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3460 | } |
|
|
3461 | else |
|
|
3462 | #endif |
1955 | signal (w->signum, SIG_DFL); |
3463 | signal (w->signum, SIG_DFL); |
|
|
3464 | } |
|
|
3465 | |
|
|
3466 | EV_FREQUENT_CHECK; |
1956 | } |
3467 | } |
|
|
3468 | |
|
|
3469 | #endif |
|
|
3470 | |
|
|
3471 | #if EV_CHILD_ENABLE |
1957 | |
3472 | |
1958 | void |
3473 | void |
1959 | ev_child_start (EV_P_ ev_child *w) |
3474 | ev_child_start (EV_P_ ev_child *w) |
1960 | { |
3475 | { |
1961 | #if EV_MULTIPLICITY |
3476 | #if EV_MULTIPLICITY |
1962 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3477 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1963 | #endif |
3478 | #endif |
1964 | if (expect_false (ev_is_active (w))) |
3479 | if (expect_false (ev_is_active (w))) |
1965 | return; |
3480 | return; |
1966 | |
3481 | |
|
|
3482 | EV_FREQUENT_CHECK; |
|
|
3483 | |
1967 | ev_start (EV_A_ (W)w, 1); |
3484 | ev_start (EV_A_ (W)w, 1); |
1968 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3485 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3486 | |
|
|
3487 | EV_FREQUENT_CHECK; |
1969 | } |
3488 | } |
1970 | |
3489 | |
1971 | void |
3490 | void |
1972 | ev_child_stop (EV_P_ ev_child *w) |
3491 | ev_child_stop (EV_P_ ev_child *w) |
1973 | { |
3492 | { |
1974 | clear_pending (EV_A_ (W)w); |
3493 | clear_pending (EV_A_ (W)w); |
1975 | if (expect_false (!ev_is_active (w))) |
3494 | if (expect_false (!ev_is_active (w))) |
1976 | return; |
3495 | return; |
1977 | |
3496 | |
|
|
3497 | EV_FREQUENT_CHECK; |
|
|
3498 | |
1978 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3499 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1979 | ev_stop (EV_A_ (W)w); |
3500 | ev_stop (EV_A_ (W)w); |
|
|
3501 | |
|
|
3502 | EV_FREQUENT_CHECK; |
1980 | } |
3503 | } |
|
|
3504 | |
|
|
3505 | #endif |
1981 | |
3506 | |
1982 | #if EV_STAT_ENABLE |
3507 | #if EV_STAT_ENABLE |
1983 | |
3508 | |
1984 | # ifdef _WIN32 |
3509 | # ifdef _WIN32 |
1985 | # undef lstat |
3510 | # undef lstat |
1986 | # define lstat(a,b) _stati64 (a,b) |
3511 | # define lstat(a,b) _stati64 (a,b) |
1987 | # endif |
3512 | # endif |
1988 | |
3513 | |
1989 | #define DEF_STAT_INTERVAL 5.0074891 |
3514 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3515 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1990 | #define MIN_STAT_INTERVAL 0.1074891 |
3516 | #define MIN_STAT_INTERVAL 0.1074891 |
1991 | |
3517 | |
1992 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3518 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1993 | |
3519 | |
1994 | #if EV_USE_INOTIFY |
3520 | #if EV_USE_INOTIFY |
1995 | # define EV_INOTIFY_BUFSIZE 8192 |
3521 | |
|
|
3522 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3523 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1996 | |
3524 | |
1997 | static void noinline |
3525 | static void noinline |
1998 | infy_add (EV_P_ ev_stat *w) |
3526 | infy_add (EV_P_ ev_stat *w) |
1999 | { |
3527 | { |
2000 | 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); |
3528 | 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); |
2001 | |
3529 | |
2002 | if (w->wd < 0) |
3530 | if (w->wd >= 0) |
|
|
3531 | { |
|
|
3532 | struct statfs sfs; |
|
|
3533 | |
|
|
3534 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3535 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3536 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3537 | |
|
|
3538 | if (!fs_2625) |
|
|
3539 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3540 | else if (!statfs (w->path, &sfs) |
|
|
3541 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3542 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3543 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3544 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3545 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3546 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3547 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3548 | else |
|
|
3549 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2003 | { |
3550 | } |
2004 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3551 | else |
|
|
3552 | { |
|
|
3553 | /* can't use inotify, continue to stat */ |
|
|
3554 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2005 | |
3555 | |
2006 | /* monitor some parent directory for speedup hints */ |
3556 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3557 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3558 | /* but an efficiency issue only */ |
2007 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3559 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2008 | { |
3560 | { |
2009 | char path [4096]; |
3561 | char path [4096]; |
2010 | strcpy (path, w->path); |
3562 | strcpy (path, w->path); |
2011 | |
3563 | |
… | |
… | |
2014 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3566 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2015 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3567 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2016 | |
3568 | |
2017 | char *pend = strrchr (path, '/'); |
3569 | char *pend = strrchr (path, '/'); |
2018 | |
3570 | |
2019 | if (!pend) |
3571 | if (!pend || pend == path) |
2020 | break; /* whoops, no '/', complain to your admin */ |
3572 | break; |
2021 | |
3573 | |
2022 | *pend = 0; |
3574 | *pend = 0; |
2023 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3575 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2024 | } |
3576 | } |
2025 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3577 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2026 | } |
3578 | } |
2027 | } |
3579 | } |
2028 | else |
|
|
2029 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2030 | |
3580 | |
2031 | if (w->wd >= 0) |
3581 | if (w->wd >= 0) |
2032 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3582 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3583 | |
|
|
3584 | /* now re-arm timer, if required */ |
|
|
3585 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3586 | ev_timer_again (EV_A_ &w->timer); |
|
|
3587 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2033 | } |
3588 | } |
2034 | |
3589 | |
2035 | static void noinline |
3590 | static void noinline |
2036 | infy_del (EV_P_ ev_stat *w) |
3591 | infy_del (EV_P_ ev_stat *w) |
2037 | { |
3592 | { |
… | |
… | |
2040 | |
3595 | |
2041 | if (wd < 0) |
3596 | if (wd < 0) |
2042 | return; |
3597 | return; |
2043 | |
3598 | |
2044 | w->wd = -2; |
3599 | w->wd = -2; |
2045 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3600 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2046 | wlist_del (&fs_hash [slot].head, (WL)w); |
3601 | wlist_del (&fs_hash [slot].head, (WL)w); |
2047 | |
3602 | |
2048 | /* remove this watcher, if others are watching it, they will rearm */ |
3603 | /* remove this watcher, if others are watching it, they will rearm */ |
2049 | inotify_rm_watch (fs_fd, wd); |
3604 | inotify_rm_watch (fs_fd, wd); |
2050 | } |
3605 | } |
2051 | |
3606 | |
2052 | static void noinline |
3607 | static void noinline |
2053 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3608 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2054 | { |
3609 | { |
2055 | if (slot < 0) |
3610 | if (slot < 0) |
2056 | /* overflow, need to check for all hahs slots */ |
3611 | /* overflow, need to check for all hash slots */ |
2057 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3612 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2058 | infy_wd (EV_A_ slot, wd, ev); |
3613 | infy_wd (EV_A_ slot, wd, ev); |
2059 | else |
3614 | else |
2060 | { |
3615 | { |
2061 | WL w_; |
3616 | WL w_; |
2062 | |
3617 | |
2063 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3618 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2064 | { |
3619 | { |
2065 | ev_stat *w = (ev_stat *)w_; |
3620 | ev_stat *w = (ev_stat *)w_; |
2066 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3621 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2067 | |
3622 | |
2068 | if (w->wd == wd || wd == -1) |
3623 | if (w->wd == wd || wd == -1) |
2069 | { |
3624 | { |
2070 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3625 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2071 | { |
3626 | { |
|
|
3627 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2072 | w->wd = -1; |
3628 | w->wd = -1; |
2073 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3629 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2074 | } |
3630 | } |
2075 | |
3631 | |
2076 | stat_timer_cb (EV_A_ &w->timer, 0); |
3632 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2081 | |
3637 | |
2082 | static void |
3638 | static void |
2083 | infy_cb (EV_P_ ev_io *w, int revents) |
3639 | infy_cb (EV_P_ ev_io *w, int revents) |
2084 | { |
3640 | { |
2085 | char buf [EV_INOTIFY_BUFSIZE]; |
3641 | char buf [EV_INOTIFY_BUFSIZE]; |
2086 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2087 | int ofs; |
3642 | int ofs; |
2088 | int len = read (fs_fd, buf, sizeof (buf)); |
3643 | int len = read (fs_fd, buf, sizeof (buf)); |
2089 | |
3644 | |
2090 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3645 | for (ofs = 0; ofs < len; ) |
|
|
3646 | { |
|
|
3647 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2091 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3648 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3649 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3650 | } |
2092 | } |
3651 | } |
2093 | |
3652 | |
2094 | void inline_size |
3653 | inline_size void ecb_cold |
|
|
3654 | ev_check_2625 (EV_P) |
|
|
3655 | { |
|
|
3656 | /* kernels < 2.6.25 are borked |
|
|
3657 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3658 | */ |
|
|
3659 | if (ev_linux_version () < 0x020619) |
|
|
3660 | return; |
|
|
3661 | |
|
|
3662 | fs_2625 = 1; |
|
|
3663 | } |
|
|
3664 | |
|
|
3665 | inline_size int |
|
|
3666 | infy_newfd (void) |
|
|
3667 | { |
|
|
3668 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3669 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3670 | if (fd >= 0) |
|
|
3671 | return fd; |
|
|
3672 | #endif |
|
|
3673 | return inotify_init (); |
|
|
3674 | } |
|
|
3675 | |
|
|
3676 | inline_size void |
2095 | infy_init (EV_P) |
3677 | infy_init (EV_P) |
2096 | { |
3678 | { |
2097 | if (fs_fd != -2) |
3679 | if (fs_fd != -2) |
2098 | return; |
3680 | return; |
2099 | |
3681 | |
|
|
3682 | fs_fd = -1; |
|
|
3683 | |
|
|
3684 | ev_check_2625 (EV_A); |
|
|
3685 | |
2100 | fs_fd = inotify_init (); |
3686 | fs_fd = infy_newfd (); |
2101 | |
3687 | |
2102 | if (fs_fd >= 0) |
3688 | if (fs_fd >= 0) |
2103 | { |
3689 | { |
|
|
3690 | fd_intern (fs_fd); |
2104 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3691 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2105 | ev_set_priority (&fs_w, EV_MAXPRI); |
3692 | ev_set_priority (&fs_w, EV_MAXPRI); |
2106 | ev_io_start (EV_A_ &fs_w); |
3693 | ev_io_start (EV_A_ &fs_w); |
|
|
3694 | ev_unref (EV_A); |
2107 | } |
3695 | } |
2108 | } |
3696 | } |
2109 | |
3697 | |
2110 | void inline_size |
3698 | inline_size void |
2111 | infy_fork (EV_P) |
3699 | infy_fork (EV_P) |
2112 | { |
3700 | { |
2113 | int slot; |
3701 | int slot; |
2114 | |
3702 | |
2115 | if (fs_fd < 0) |
3703 | if (fs_fd < 0) |
2116 | return; |
3704 | return; |
2117 | |
3705 | |
|
|
3706 | ev_ref (EV_A); |
|
|
3707 | ev_io_stop (EV_A_ &fs_w); |
2118 | close (fs_fd); |
3708 | close (fs_fd); |
2119 | fs_fd = inotify_init (); |
3709 | fs_fd = infy_newfd (); |
2120 | |
3710 | |
|
|
3711 | if (fs_fd >= 0) |
|
|
3712 | { |
|
|
3713 | fd_intern (fs_fd); |
|
|
3714 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3715 | ev_io_start (EV_A_ &fs_w); |
|
|
3716 | ev_unref (EV_A); |
|
|
3717 | } |
|
|
3718 | |
2121 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3719 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2122 | { |
3720 | { |
2123 | WL w_ = fs_hash [slot].head; |
3721 | WL w_ = fs_hash [slot].head; |
2124 | fs_hash [slot].head = 0; |
3722 | fs_hash [slot].head = 0; |
2125 | |
3723 | |
2126 | while (w_) |
3724 | while (w_) |
… | |
… | |
2131 | w->wd = -1; |
3729 | w->wd = -1; |
2132 | |
3730 | |
2133 | if (fs_fd >= 0) |
3731 | if (fs_fd >= 0) |
2134 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3732 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2135 | else |
3733 | else |
|
|
3734 | { |
|
|
3735 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3736 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2136 | ev_timer_start (EV_A_ &w->timer); |
3737 | ev_timer_again (EV_A_ &w->timer); |
|
|
3738 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3739 | } |
2137 | } |
3740 | } |
2138 | |
|
|
2139 | } |
3741 | } |
2140 | } |
3742 | } |
2141 | |
3743 | |
|
|
3744 | #endif |
|
|
3745 | |
|
|
3746 | #ifdef _WIN32 |
|
|
3747 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3748 | #else |
|
|
3749 | # define EV_LSTAT(p,b) lstat (p, b) |
2142 | #endif |
3750 | #endif |
2143 | |
3751 | |
2144 | void |
3752 | void |
2145 | ev_stat_stat (EV_P_ ev_stat *w) |
3753 | ev_stat_stat (EV_P_ ev_stat *w) |
2146 | { |
3754 | { |
… | |
… | |
2153 | static void noinline |
3761 | static void noinline |
2154 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3762 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2155 | { |
3763 | { |
2156 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3764 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2157 | |
3765 | |
2158 | /* we copy this here each the time so that */ |
3766 | ev_statdata prev = w->attr; |
2159 | /* prev has the old value when the callback gets invoked */ |
|
|
2160 | w->prev = w->attr; |
|
|
2161 | ev_stat_stat (EV_A_ w); |
3767 | ev_stat_stat (EV_A_ w); |
2162 | |
3768 | |
2163 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3769 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2164 | if ( |
3770 | if ( |
2165 | w->prev.st_dev != w->attr.st_dev |
3771 | prev.st_dev != w->attr.st_dev |
2166 | || w->prev.st_ino != w->attr.st_ino |
3772 | || prev.st_ino != w->attr.st_ino |
2167 | || w->prev.st_mode != w->attr.st_mode |
3773 | || prev.st_mode != w->attr.st_mode |
2168 | || w->prev.st_nlink != w->attr.st_nlink |
3774 | || prev.st_nlink != w->attr.st_nlink |
2169 | || w->prev.st_uid != w->attr.st_uid |
3775 | || prev.st_uid != w->attr.st_uid |
2170 | || w->prev.st_gid != w->attr.st_gid |
3776 | || prev.st_gid != w->attr.st_gid |
2171 | || w->prev.st_rdev != w->attr.st_rdev |
3777 | || prev.st_rdev != w->attr.st_rdev |
2172 | || w->prev.st_size != w->attr.st_size |
3778 | || prev.st_size != w->attr.st_size |
2173 | || w->prev.st_atime != w->attr.st_atime |
3779 | || prev.st_atime != w->attr.st_atime |
2174 | || w->prev.st_mtime != w->attr.st_mtime |
3780 | || prev.st_mtime != w->attr.st_mtime |
2175 | || w->prev.st_ctime != w->attr.st_ctime |
3781 | || prev.st_ctime != w->attr.st_ctime |
2176 | ) { |
3782 | ) { |
|
|
3783 | /* we only update w->prev on actual differences */ |
|
|
3784 | /* in case we test more often than invoke the callback, */ |
|
|
3785 | /* to ensure that prev is always different to attr */ |
|
|
3786 | w->prev = prev; |
|
|
3787 | |
2177 | #if EV_USE_INOTIFY |
3788 | #if EV_USE_INOTIFY |
|
|
3789 | if (fs_fd >= 0) |
|
|
3790 | { |
2178 | infy_del (EV_A_ w); |
3791 | infy_del (EV_A_ w); |
2179 | infy_add (EV_A_ w); |
3792 | infy_add (EV_A_ w); |
2180 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3793 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3794 | } |
2181 | #endif |
3795 | #endif |
2182 | |
3796 | |
2183 | ev_feed_event (EV_A_ w, EV_STAT); |
3797 | ev_feed_event (EV_A_ w, EV_STAT); |
2184 | } |
3798 | } |
2185 | } |
3799 | } |
… | |
… | |
2188 | ev_stat_start (EV_P_ ev_stat *w) |
3802 | ev_stat_start (EV_P_ ev_stat *w) |
2189 | { |
3803 | { |
2190 | if (expect_false (ev_is_active (w))) |
3804 | if (expect_false (ev_is_active (w))) |
2191 | return; |
3805 | return; |
2192 | |
3806 | |
2193 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2194 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2195 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2196 | |
|
|
2197 | ev_stat_stat (EV_A_ w); |
3807 | ev_stat_stat (EV_A_ w); |
2198 | |
3808 | |
|
|
3809 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2199 | if (w->interval < MIN_STAT_INTERVAL) |
3810 | w->interval = MIN_STAT_INTERVAL; |
2200 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2201 | |
3811 | |
2202 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3812 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2203 | ev_set_priority (&w->timer, ev_priority (w)); |
3813 | ev_set_priority (&w->timer, ev_priority (w)); |
2204 | |
3814 | |
2205 | #if EV_USE_INOTIFY |
3815 | #if EV_USE_INOTIFY |
2206 | infy_init (EV_A); |
3816 | infy_init (EV_A); |
2207 | |
3817 | |
2208 | if (fs_fd >= 0) |
3818 | if (fs_fd >= 0) |
2209 | infy_add (EV_A_ w); |
3819 | infy_add (EV_A_ w); |
2210 | else |
3820 | else |
2211 | #endif |
3821 | #endif |
|
|
3822 | { |
2212 | ev_timer_start (EV_A_ &w->timer); |
3823 | ev_timer_again (EV_A_ &w->timer); |
|
|
3824 | ev_unref (EV_A); |
|
|
3825 | } |
2213 | |
3826 | |
2214 | ev_start (EV_A_ (W)w, 1); |
3827 | ev_start (EV_A_ (W)w, 1); |
|
|
3828 | |
|
|
3829 | EV_FREQUENT_CHECK; |
2215 | } |
3830 | } |
2216 | |
3831 | |
2217 | void |
3832 | void |
2218 | ev_stat_stop (EV_P_ ev_stat *w) |
3833 | ev_stat_stop (EV_P_ ev_stat *w) |
2219 | { |
3834 | { |
2220 | clear_pending (EV_A_ (W)w); |
3835 | clear_pending (EV_A_ (W)w); |
2221 | if (expect_false (!ev_is_active (w))) |
3836 | if (expect_false (!ev_is_active (w))) |
2222 | return; |
3837 | return; |
2223 | |
3838 | |
|
|
3839 | EV_FREQUENT_CHECK; |
|
|
3840 | |
2224 | #if EV_USE_INOTIFY |
3841 | #if EV_USE_INOTIFY |
2225 | infy_del (EV_A_ w); |
3842 | infy_del (EV_A_ w); |
2226 | #endif |
3843 | #endif |
|
|
3844 | |
|
|
3845 | if (ev_is_active (&w->timer)) |
|
|
3846 | { |
|
|
3847 | ev_ref (EV_A); |
2227 | ev_timer_stop (EV_A_ &w->timer); |
3848 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3849 | } |
2228 | |
3850 | |
2229 | ev_stop (EV_A_ (W)w); |
3851 | ev_stop (EV_A_ (W)w); |
|
|
3852 | |
|
|
3853 | EV_FREQUENT_CHECK; |
2230 | } |
3854 | } |
2231 | #endif |
3855 | #endif |
2232 | |
3856 | |
2233 | #if EV_IDLE_ENABLE |
3857 | #if EV_IDLE_ENABLE |
2234 | void |
3858 | void |
… | |
… | |
2237 | if (expect_false (ev_is_active (w))) |
3861 | if (expect_false (ev_is_active (w))) |
2238 | return; |
3862 | return; |
2239 | |
3863 | |
2240 | pri_adjust (EV_A_ (W)w); |
3864 | pri_adjust (EV_A_ (W)w); |
2241 | |
3865 | |
|
|
3866 | EV_FREQUENT_CHECK; |
|
|
3867 | |
2242 | { |
3868 | { |
2243 | int active = ++idlecnt [ABSPRI (w)]; |
3869 | int active = ++idlecnt [ABSPRI (w)]; |
2244 | |
3870 | |
2245 | ++idleall; |
3871 | ++idleall; |
2246 | ev_start (EV_A_ (W)w, active); |
3872 | ev_start (EV_A_ (W)w, active); |
2247 | |
3873 | |
2248 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3874 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2249 | idles [ABSPRI (w)][active - 1] = w; |
3875 | idles [ABSPRI (w)][active - 1] = w; |
2250 | } |
3876 | } |
|
|
3877 | |
|
|
3878 | EV_FREQUENT_CHECK; |
2251 | } |
3879 | } |
2252 | |
3880 | |
2253 | void |
3881 | void |
2254 | ev_idle_stop (EV_P_ ev_idle *w) |
3882 | ev_idle_stop (EV_P_ ev_idle *w) |
2255 | { |
3883 | { |
2256 | clear_pending (EV_A_ (W)w); |
3884 | clear_pending (EV_A_ (W)w); |
2257 | if (expect_false (!ev_is_active (w))) |
3885 | if (expect_false (!ev_is_active (w))) |
2258 | return; |
3886 | return; |
2259 | |
3887 | |
|
|
3888 | EV_FREQUENT_CHECK; |
|
|
3889 | |
2260 | { |
3890 | { |
2261 | int active = ((W)w)->active; |
3891 | int active = ev_active (w); |
2262 | |
3892 | |
2263 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3893 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2264 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3894 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2265 | |
3895 | |
2266 | ev_stop (EV_A_ (W)w); |
3896 | ev_stop (EV_A_ (W)w); |
2267 | --idleall; |
3897 | --idleall; |
2268 | } |
3898 | } |
2269 | } |
|
|
2270 | #endif |
|
|
2271 | |
3899 | |
|
|
3900 | EV_FREQUENT_CHECK; |
|
|
3901 | } |
|
|
3902 | #endif |
|
|
3903 | |
|
|
3904 | #if EV_PREPARE_ENABLE |
2272 | void |
3905 | void |
2273 | ev_prepare_start (EV_P_ ev_prepare *w) |
3906 | ev_prepare_start (EV_P_ ev_prepare *w) |
2274 | { |
3907 | { |
2275 | if (expect_false (ev_is_active (w))) |
3908 | if (expect_false (ev_is_active (w))) |
2276 | return; |
3909 | return; |
|
|
3910 | |
|
|
3911 | EV_FREQUENT_CHECK; |
2277 | |
3912 | |
2278 | ev_start (EV_A_ (W)w, ++preparecnt); |
3913 | ev_start (EV_A_ (W)w, ++preparecnt); |
2279 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3914 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2280 | prepares [preparecnt - 1] = w; |
3915 | prepares [preparecnt - 1] = w; |
|
|
3916 | |
|
|
3917 | EV_FREQUENT_CHECK; |
2281 | } |
3918 | } |
2282 | |
3919 | |
2283 | void |
3920 | void |
2284 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3921 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2285 | { |
3922 | { |
2286 | clear_pending (EV_A_ (W)w); |
3923 | clear_pending (EV_A_ (W)w); |
2287 | if (expect_false (!ev_is_active (w))) |
3924 | if (expect_false (!ev_is_active (w))) |
2288 | return; |
3925 | return; |
2289 | |
3926 | |
|
|
3927 | EV_FREQUENT_CHECK; |
|
|
3928 | |
2290 | { |
3929 | { |
2291 | int active = ((W)w)->active; |
3930 | int active = ev_active (w); |
|
|
3931 | |
2292 | prepares [active - 1] = prepares [--preparecnt]; |
3932 | prepares [active - 1] = prepares [--preparecnt]; |
2293 | ((W)prepares [active - 1])->active = active; |
3933 | ev_active (prepares [active - 1]) = active; |
2294 | } |
3934 | } |
2295 | |
3935 | |
2296 | ev_stop (EV_A_ (W)w); |
3936 | ev_stop (EV_A_ (W)w); |
2297 | } |
|
|
2298 | |
3937 | |
|
|
3938 | EV_FREQUENT_CHECK; |
|
|
3939 | } |
|
|
3940 | #endif |
|
|
3941 | |
|
|
3942 | #if EV_CHECK_ENABLE |
2299 | void |
3943 | void |
2300 | ev_check_start (EV_P_ ev_check *w) |
3944 | ev_check_start (EV_P_ ev_check *w) |
2301 | { |
3945 | { |
2302 | if (expect_false (ev_is_active (w))) |
3946 | if (expect_false (ev_is_active (w))) |
2303 | return; |
3947 | return; |
|
|
3948 | |
|
|
3949 | EV_FREQUENT_CHECK; |
2304 | |
3950 | |
2305 | ev_start (EV_A_ (W)w, ++checkcnt); |
3951 | ev_start (EV_A_ (W)w, ++checkcnt); |
2306 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3952 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2307 | checks [checkcnt - 1] = w; |
3953 | checks [checkcnt - 1] = w; |
|
|
3954 | |
|
|
3955 | EV_FREQUENT_CHECK; |
2308 | } |
3956 | } |
2309 | |
3957 | |
2310 | void |
3958 | void |
2311 | ev_check_stop (EV_P_ ev_check *w) |
3959 | ev_check_stop (EV_P_ ev_check *w) |
2312 | { |
3960 | { |
2313 | clear_pending (EV_A_ (W)w); |
3961 | clear_pending (EV_A_ (W)w); |
2314 | if (expect_false (!ev_is_active (w))) |
3962 | if (expect_false (!ev_is_active (w))) |
2315 | return; |
3963 | return; |
2316 | |
3964 | |
|
|
3965 | EV_FREQUENT_CHECK; |
|
|
3966 | |
2317 | { |
3967 | { |
2318 | int active = ((W)w)->active; |
3968 | int active = ev_active (w); |
|
|
3969 | |
2319 | checks [active - 1] = checks [--checkcnt]; |
3970 | checks [active - 1] = checks [--checkcnt]; |
2320 | ((W)checks [active - 1])->active = active; |
3971 | ev_active (checks [active - 1]) = active; |
2321 | } |
3972 | } |
2322 | |
3973 | |
2323 | ev_stop (EV_A_ (W)w); |
3974 | ev_stop (EV_A_ (W)w); |
|
|
3975 | |
|
|
3976 | EV_FREQUENT_CHECK; |
2324 | } |
3977 | } |
|
|
3978 | #endif |
2325 | |
3979 | |
2326 | #if EV_EMBED_ENABLE |
3980 | #if EV_EMBED_ENABLE |
2327 | void noinline |
3981 | void noinline |
2328 | ev_embed_sweep (EV_P_ ev_embed *w) |
3982 | ev_embed_sweep (EV_P_ ev_embed *w) |
2329 | { |
3983 | { |
2330 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3984 | ev_run (w->other, EVRUN_NOWAIT); |
2331 | } |
3985 | } |
2332 | |
3986 | |
2333 | static void |
3987 | static void |
2334 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3988 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2335 | { |
3989 | { |
2336 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3990 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2337 | |
3991 | |
2338 | if (ev_cb (w)) |
3992 | if (ev_cb (w)) |
2339 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3993 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2340 | else |
3994 | else |
2341 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3995 | ev_run (w->other, EVRUN_NOWAIT); |
2342 | } |
3996 | } |
2343 | |
3997 | |
2344 | static void |
3998 | static void |
2345 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3999 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2346 | { |
4000 | { |
2347 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4001 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2348 | |
4002 | |
2349 | { |
4003 | { |
2350 | struct ev_loop *loop = w->other; |
4004 | EV_P = w->other; |
2351 | |
4005 | |
2352 | while (fdchangecnt) |
4006 | while (fdchangecnt) |
2353 | { |
4007 | { |
2354 | fd_reify (EV_A); |
4008 | fd_reify (EV_A); |
2355 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4009 | ev_run (EV_A_ EVRUN_NOWAIT); |
2356 | } |
4010 | } |
2357 | } |
4011 | } |
|
|
4012 | } |
|
|
4013 | |
|
|
4014 | static void |
|
|
4015 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
4016 | { |
|
|
4017 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
4018 | |
|
|
4019 | ev_embed_stop (EV_A_ w); |
|
|
4020 | |
|
|
4021 | { |
|
|
4022 | EV_P = w->other; |
|
|
4023 | |
|
|
4024 | ev_loop_fork (EV_A); |
|
|
4025 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4026 | } |
|
|
4027 | |
|
|
4028 | ev_embed_start (EV_A_ w); |
2358 | } |
4029 | } |
2359 | |
4030 | |
2360 | #if 0 |
4031 | #if 0 |
2361 | static void |
4032 | static void |
2362 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4033 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2370 | { |
4041 | { |
2371 | if (expect_false (ev_is_active (w))) |
4042 | if (expect_false (ev_is_active (w))) |
2372 | return; |
4043 | return; |
2373 | |
4044 | |
2374 | { |
4045 | { |
2375 | struct ev_loop *loop = w->other; |
4046 | EV_P = w->other; |
2376 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4047 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2377 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4048 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2378 | } |
4049 | } |
|
|
4050 | |
|
|
4051 | EV_FREQUENT_CHECK; |
2379 | |
4052 | |
2380 | ev_set_priority (&w->io, ev_priority (w)); |
4053 | ev_set_priority (&w->io, ev_priority (w)); |
2381 | ev_io_start (EV_A_ &w->io); |
4054 | ev_io_start (EV_A_ &w->io); |
2382 | |
4055 | |
2383 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4056 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2384 | ev_set_priority (&w->prepare, EV_MINPRI); |
4057 | ev_set_priority (&w->prepare, EV_MINPRI); |
2385 | ev_prepare_start (EV_A_ &w->prepare); |
4058 | ev_prepare_start (EV_A_ &w->prepare); |
2386 | |
4059 | |
|
|
4060 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
4061 | ev_fork_start (EV_A_ &w->fork); |
|
|
4062 | |
2387 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4063 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2388 | |
4064 | |
2389 | ev_start (EV_A_ (W)w, 1); |
4065 | ev_start (EV_A_ (W)w, 1); |
|
|
4066 | |
|
|
4067 | EV_FREQUENT_CHECK; |
2390 | } |
4068 | } |
2391 | |
4069 | |
2392 | void |
4070 | void |
2393 | ev_embed_stop (EV_P_ ev_embed *w) |
4071 | ev_embed_stop (EV_P_ ev_embed *w) |
2394 | { |
4072 | { |
2395 | clear_pending (EV_A_ (W)w); |
4073 | clear_pending (EV_A_ (W)w); |
2396 | if (expect_false (!ev_is_active (w))) |
4074 | if (expect_false (!ev_is_active (w))) |
2397 | return; |
4075 | return; |
2398 | |
4076 | |
|
|
4077 | EV_FREQUENT_CHECK; |
|
|
4078 | |
2399 | ev_io_stop (EV_A_ &w->io); |
4079 | ev_io_stop (EV_A_ &w->io); |
2400 | ev_prepare_stop (EV_A_ &w->prepare); |
4080 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
4081 | ev_fork_stop (EV_A_ &w->fork); |
2401 | |
4082 | |
2402 | ev_stop (EV_A_ (W)w); |
4083 | ev_stop (EV_A_ (W)w); |
|
|
4084 | |
|
|
4085 | EV_FREQUENT_CHECK; |
2403 | } |
4086 | } |
2404 | #endif |
4087 | #endif |
2405 | |
4088 | |
2406 | #if EV_FORK_ENABLE |
4089 | #if EV_FORK_ENABLE |
2407 | void |
4090 | void |
2408 | ev_fork_start (EV_P_ ev_fork *w) |
4091 | ev_fork_start (EV_P_ ev_fork *w) |
2409 | { |
4092 | { |
2410 | if (expect_false (ev_is_active (w))) |
4093 | if (expect_false (ev_is_active (w))) |
2411 | return; |
4094 | return; |
2412 | |
4095 | |
|
|
4096 | EV_FREQUENT_CHECK; |
|
|
4097 | |
2413 | ev_start (EV_A_ (W)w, ++forkcnt); |
4098 | ev_start (EV_A_ (W)w, ++forkcnt); |
2414 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4099 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2415 | forks [forkcnt - 1] = w; |
4100 | forks [forkcnt - 1] = w; |
|
|
4101 | |
|
|
4102 | EV_FREQUENT_CHECK; |
2416 | } |
4103 | } |
2417 | |
4104 | |
2418 | void |
4105 | void |
2419 | ev_fork_stop (EV_P_ ev_fork *w) |
4106 | ev_fork_stop (EV_P_ ev_fork *w) |
2420 | { |
4107 | { |
2421 | clear_pending (EV_A_ (W)w); |
4108 | clear_pending (EV_A_ (W)w); |
2422 | if (expect_false (!ev_is_active (w))) |
4109 | if (expect_false (!ev_is_active (w))) |
2423 | return; |
4110 | return; |
2424 | |
4111 | |
|
|
4112 | EV_FREQUENT_CHECK; |
|
|
4113 | |
2425 | { |
4114 | { |
2426 | int active = ((W)w)->active; |
4115 | int active = ev_active (w); |
|
|
4116 | |
2427 | forks [active - 1] = forks [--forkcnt]; |
4117 | forks [active - 1] = forks [--forkcnt]; |
2428 | ((W)forks [active - 1])->active = active; |
4118 | ev_active (forks [active - 1]) = active; |
2429 | } |
4119 | } |
2430 | |
4120 | |
2431 | ev_stop (EV_A_ (W)w); |
4121 | ev_stop (EV_A_ (W)w); |
|
|
4122 | |
|
|
4123 | EV_FREQUENT_CHECK; |
|
|
4124 | } |
|
|
4125 | #endif |
|
|
4126 | |
|
|
4127 | #if EV_CLEANUP_ENABLE |
|
|
4128 | void |
|
|
4129 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
4130 | { |
|
|
4131 | if (expect_false (ev_is_active (w))) |
|
|
4132 | return; |
|
|
4133 | |
|
|
4134 | EV_FREQUENT_CHECK; |
|
|
4135 | |
|
|
4136 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4137 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4138 | cleanups [cleanupcnt - 1] = w; |
|
|
4139 | |
|
|
4140 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4141 | ev_unref (EV_A); |
|
|
4142 | EV_FREQUENT_CHECK; |
|
|
4143 | } |
|
|
4144 | |
|
|
4145 | void |
|
|
4146 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
4147 | { |
|
|
4148 | clear_pending (EV_A_ (W)w); |
|
|
4149 | if (expect_false (!ev_is_active (w))) |
|
|
4150 | return; |
|
|
4151 | |
|
|
4152 | EV_FREQUENT_CHECK; |
|
|
4153 | ev_ref (EV_A); |
|
|
4154 | |
|
|
4155 | { |
|
|
4156 | int active = ev_active (w); |
|
|
4157 | |
|
|
4158 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4159 | ev_active (cleanups [active - 1]) = active; |
|
|
4160 | } |
|
|
4161 | |
|
|
4162 | ev_stop (EV_A_ (W)w); |
|
|
4163 | |
|
|
4164 | EV_FREQUENT_CHECK; |
2432 | } |
4165 | } |
2433 | #endif |
4166 | #endif |
2434 | |
4167 | |
2435 | #if EV_ASYNC_ENABLE |
4168 | #if EV_ASYNC_ENABLE |
2436 | void |
4169 | void |
2437 | ev_async_start (EV_P_ ev_async *w) |
4170 | ev_async_start (EV_P_ ev_async *w) |
2438 | { |
4171 | { |
2439 | if (expect_false (ev_is_active (w))) |
4172 | if (expect_false (ev_is_active (w))) |
2440 | return; |
4173 | return; |
2441 | |
4174 | |
|
|
4175 | w->sent = 0; |
|
|
4176 | |
2442 | evpipe_init (EV_A); |
4177 | evpipe_init (EV_A); |
|
|
4178 | |
|
|
4179 | EV_FREQUENT_CHECK; |
2443 | |
4180 | |
2444 | ev_start (EV_A_ (W)w, ++asynccnt); |
4181 | ev_start (EV_A_ (W)w, ++asynccnt); |
2445 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4182 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2446 | asyncs [asynccnt - 1] = w; |
4183 | asyncs [asynccnt - 1] = w; |
|
|
4184 | |
|
|
4185 | EV_FREQUENT_CHECK; |
2447 | } |
4186 | } |
2448 | |
4187 | |
2449 | void |
4188 | void |
2450 | ev_async_stop (EV_P_ ev_async *w) |
4189 | ev_async_stop (EV_P_ ev_async *w) |
2451 | { |
4190 | { |
2452 | clear_pending (EV_A_ (W)w); |
4191 | clear_pending (EV_A_ (W)w); |
2453 | if (expect_false (!ev_is_active (w))) |
4192 | if (expect_false (!ev_is_active (w))) |
2454 | return; |
4193 | return; |
2455 | |
4194 | |
|
|
4195 | EV_FREQUENT_CHECK; |
|
|
4196 | |
2456 | { |
4197 | { |
2457 | int active = ((W)w)->active; |
4198 | int active = ev_active (w); |
|
|
4199 | |
2458 | asyncs [active - 1] = asyncs [--asynccnt]; |
4200 | asyncs [active - 1] = asyncs [--asynccnt]; |
2459 | ((W)asyncs [active - 1])->active = active; |
4201 | ev_active (asyncs [active - 1]) = active; |
2460 | } |
4202 | } |
2461 | |
4203 | |
2462 | ev_stop (EV_A_ (W)w); |
4204 | ev_stop (EV_A_ (W)w); |
|
|
4205 | |
|
|
4206 | EV_FREQUENT_CHECK; |
2463 | } |
4207 | } |
2464 | |
4208 | |
2465 | void |
4209 | void |
2466 | ev_async_send (EV_P_ ev_async *w) |
4210 | ev_async_send (EV_P_ ev_async *w) |
2467 | { |
4211 | { |
2468 | w->sent = 1; |
4212 | w->sent = 1; |
2469 | evpipe_write (EV_A_ 0, 1); |
4213 | evpipe_write (EV_A_ &async_pending); |
2470 | } |
4214 | } |
2471 | #endif |
4215 | #endif |
2472 | |
4216 | |
2473 | /*****************************************************************************/ |
4217 | /*****************************************************************************/ |
2474 | |
4218 | |
… | |
… | |
2484 | once_cb (EV_P_ struct ev_once *once, int revents) |
4228 | once_cb (EV_P_ struct ev_once *once, int revents) |
2485 | { |
4229 | { |
2486 | void (*cb)(int revents, void *arg) = once->cb; |
4230 | void (*cb)(int revents, void *arg) = once->cb; |
2487 | void *arg = once->arg; |
4231 | void *arg = once->arg; |
2488 | |
4232 | |
2489 | ev_io_stop (EV_A_ &once->io); |
4233 | ev_io_stop (EV_A_ &once->io); |
2490 | ev_timer_stop (EV_A_ &once->to); |
4234 | ev_timer_stop (EV_A_ &once->to); |
2491 | ev_free (once); |
4235 | ev_free (once); |
2492 | |
4236 | |
2493 | cb (revents, arg); |
4237 | cb (revents, arg); |
2494 | } |
4238 | } |
2495 | |
4239 | |
2496 | static void |
4240 | static void |
2497 | once_cb_io (EV_P_ ev_io *w, int revents) |
4241 | once_cb_io (EV_P_ ev_io *w, int revents) |
2498 | { |
4242 | { |
2499 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
4243 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
4244 | |
|
|
4245 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2500 | } |
4246 | } |
2501 | |
4247 | |
2502 | static void |
4248 | static void |
2503 | once_cb_to (EV_P_ ev_timer *w, int revents) |
4249 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2504 | { |
4250 | { |
2505 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
4251 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
4252 | |
|
|
4253 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2506 | } |
4254 | } |
2507 | |
4255 | |
2508 | void |
4256 | void |
2509 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4257 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2510 | { |
4258 | { |
2511 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4259 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2512 | |
4260 | |
2513 | if (expect_false (!once)) |
4261 | if (expect_false (!once)) |
2514 | { |
4262 | { |
2515 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4263 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2516 | return; |
4264 | return; |
2517 | } |
4265 | } |
2518 | |
4266 | |
2519 | once->cb = cb; |
4267 | once->cb = cb; |
2520 | once->arg = arg; |
4268 | once->arg = arg; |
… | |
… | |
2532 | ev_timer_set (&once->to, timeout, 0.); |
4280 | ev_timer_set (&once->to, timeout, 0.); |
2533 | ev_timer_start (EV_A_ &once->to); |
4281 | ev_timer_start (EV_A_ &once->to); |
2534 | } |
4282 | } |
2535 | } |
4283 | } |
2536 | |
4284 | |
|
|
4285 | /*****************************************************************************/ |
|
|
4286 | |
|
|
4287 | #if EV_WALK_ENABLE |
|
|
4288 | void ecb_cold |
|
|
4289 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
4290 | { |
|
|
4291 | int i, j; |
|
|
4292 | ev_watcher_list *wl, *wn; |
|
|
4293 | |
|
|
4294 | if (types & (EV_IO | EV_EMBED)) |
|
|
4295 | for (i = 0; i < anfdmax; ++i) |
|
|
4296 | for (wl = anfds [i].head; wl; ) |
|
|
4297 | { |
|
|
4298 | wn = wl->next; |
|
|
4299 | |
|
|
4300 | #if EV_EMBED_ENABLE |
|
|
4301 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
4302 | { |
|
|
4303 | if (types & EV_EMBED) |
|
|
4304 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
4305 | } |
|
|
4306 | else |
|
|
4307 | #endif |
|
|
4308 | #if EV_USE_INOTIFY |
|
|
4309 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4310 | ; |
|
|
4311 | else |
|
|
4312 | #endif |
|
|
4313 | if ((ev_io *)wl != &pipe_w) |
|
|
4314 | if (types & EV_IO) |
|
|
4315 | cb (EV_A_ EV_IO, wl); |
|
|
4316 | |
|
|
4317 | wl = wn; |
|
|
4318 | } |
|
|
4319 | |
|
|
4320 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4321 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4322 | #if EV_STAT_ENABLE |
|
|
4323 | /*TODO: timer is not always active*/ |
|
|
4324 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4325 | { |
|
|
4326 | if (types & EV_STAT) |
|
|
4327 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4328 | } |
|
|
4329 | else |
|
|
4330 | #endif |
|
|
4331 | if (types & EV_TIMER) |
|
|
4332 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4333 | |
|
|
4334 | #if EV_PERIODIC_ENABLE |
|
|
4335 | if (types & EV_PERIODIC) |
|
|
4336 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4337 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4338 | #endif |
|
|
4339 | |
|
|
4340 | #if EV_IDLE_ENABLE |
|
|
4341 | if (types & EV_IDLE) |
|
|
4342 | for (j = NUMPRI; j--; ) |
|
|
4343 | for (i = idlecnt [j]; i--; ) |
|
|
4344 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4345 | #endif |
|
|
4346 | |
|
|
4347 | #if EV_FORK_ENABLE |
|
|
4348 | if (types & EV_FORK) |
|
|
4349 | for (i = forkcnt; i--; ) |
|
|
4350 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4351 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4352 | #endif |
|
|
4353 | |
|
|
4354 | #if EV_ASYNC_ENABLE |
|
|
4355 | if (types & EV_ASYNC) |
|
|
4356 | for (i = asynccnt; i--; ) |
|
|
4357 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4358 | #endif |
|
|
4359 | |
|
|
4360 | #if EV_PREPARE_ENABLE |
|
|
4361 | if (types & EV_PREPARE) |
|
|
4362 | for (i = preparecnt; i--; ) |
|
|
4363 | # if EV_EMBED_ENABLE |
|
|
4364 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4365 | # endif |
|
|
4366 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4367 | #endif |
|
|
4368 | |
|
|
4369 | #if EV_CHECK_ENABLE |
|
|
4370 | if (types & EV_CHECK) |
|
|
4371 | for (i = checkcnt; i--; ) |
|
|
4372 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4373 | #endif |
|
|
4374 | |
|
|
4375 | #if EV_SIGNAL_ENABLE |
|
|
4376 | if (types & EV_SIGNAL) |
|
|
4377 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4378 | for (wl = signals [i].head; wl; ) |
|
|
4379 | { |
|
|
4380 | wn = wl->next; |
|
|
4381 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4382 | wl = wn; |
|
|
4383 | } |
|
|
4384 | #endif |
|
|
4385 | |
|
|
4386 | #if EV_CHILD_ENABLE |
|
|
4387 | if (types & EV_CHILD) |
|
|
4388 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4389 | for (wl = childs [i]; wl; ) |
|
|
4390 | { |
|
|
4391 | wn = wl->next; |
|
|
4392 | cb (EV_A_ EV_CHILD, wl); |
|
|
4393 | wl = wn; |
|
|
4394 | } |
|
|
4395 | #endif |
|
|
4396 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4397 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4398 | } |
|
|
4399 | #endif |
|
|
4400 | |
2537 | #if EV_MULTIPLICITY |
4401 | #if EV_MULTIPLICITY |
2538 | #include "ev_wrap.h" |
4402 | #include "ev_wrap.h" |
2539 | #endif |
4403 | #endif |
2540 | |
4404 | |
2541 | #ifdef __cplusplus |
4405 | EV_CPP(}) |
2542 | } |
|
|
2543 | #endif |
|
|
2544 | |
4406 | |