1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
51 | |
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
|
|
53 | |
|
|
54 | # if HAVE_CLOCK_SYSCALL |
|
|
55 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
56 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
57 | # ifndef EV_USE_REALTIME |
|
|
58 | # define EV_USE_REALTIME 0 |
|
|
59 | # endif |
|
|
60 | # ifndef EV_USE_MONOTONIC |
|
|
61 | # define EV_USE_MONOTONIC 1 |
|
|
62 | # endif |
|
|
63 | # endif |
|
|
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
66 | # endif |
|
|
67 | |
52 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
71 | # endif |
56 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
58 | # endif |
74 | # endif |
59 | # else |
75 | # else |
60 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
78 | # endif |
63 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
65 | # endif |
81 | # endif |
66 | # endif |
82 | # endif |
67 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
71 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
74 | # endif |
100 | # endif |
75 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
105 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
109 | # endif |
91 | |
110 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
95 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
98 | # endif |
118 | # endif |
99 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
100 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
106 | # endif |
127 | # endif |
107 | |
128 | |
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
111 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
114 | # endif |
136 | # endif |
115 | |
137 | |
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
121 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
122 | # endif |
145 | # endif |
123 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
124 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
125 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
130 | # endif |
154 | # endif |
131 | |
155 | |
|
|
156 | # if HAVE_EVENTFD |
|
|
157 | # ifndef EV_USE_EVENTFD |
|
|
158 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_EVENTFD |
|
|
162 | # define EV_USE_EVENTFD 0 |
132 | #endif |
163 | # endif |
|
|
164 | |
|
|
165 | #endif |
133 | |
166 | |
134 | #include <math.h> |
|
|
135 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
136 | #include <fcntl.h> |
169 | #include <fcntl.h> |
137 | #include <stddef.h> |
170 | #include <stddef.h> |
138 | |
171 | |
139 | #include <stdio.h> |
172 | #include <stdio.h> |
140 | |
173 | |
141 | #include <assert.h> |
174 | #include <assert.h> |
142 | #include <errno.h> |
175 | #include <errno.h> |
143 | #include <sys/types.h> |
176 | #include <sys/types.h> |
144 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
145 | |
179 | |
146 | #include <signal.h> |
180 | #include <signal.h> |
147 | |
181 | |
148 | #ifdef EV_H |
182 | #ifdef EV_H |
149 | # include EV_H |
183 | # include EV_H |
150 | #else |
184 | #else |
151 | # include "ev.h" |
185 | # include "ev.h" |
152 | #endif |
186 | #endif |
|
|
187 | |
|
|
188 | EV_CPP(extern "C" {) |
153 | |
189 | |
154 | #ifndef _WIN32 |
190 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
191 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
192 | # include <sys/wait.h> |
157 | # include <unistd.h> |
193 | # include <unistd.h> |
158 | #else |
194 | #else |
|
|
195 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
196 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
197 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
200 | # endif |
|
|
201 | # undef EV_AVOID_STDIO |
164 | #endif |
202 | #endif |
|
|
203 | |
|
|
204 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
205 | * a limit of 1024 into their select. Where people have brains, |
|
|
206 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
207 | * ordered to have a vacuum, or they do anything for money. |
|
|
208 | * This might help. Or not. |
|
|
209 | */ |
|
|
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
165 | |
211 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
213 | |
|
|
214 | /* try to deduce the maximum number of signals on this platform */ |
|
|
215 | #if defined (EV_NSIG) |
|
|
216 | /* use what's provided */ |
|
|
217 | #elif defined (NSIG) |
|
|
218 | # define EV_NSIG (NSIG) |
|
|
219 | #elif defined(_NSIG) |
|
|
220 | # define EV_NSIG (_NSIG) |
|
|
221 | #elif defined (SIGMAX) |
|
|
222 | # define EV_NSIG (SIGMAX+1) |
|
|
223 | #elif defined (SIG_MAX) |
|
|
224 | # define EV_NSIG (SIG_MAX+1) |
|
|
225 | #elif defined (_SIG_MAX) |
|
|
226 | # define EV_NSIG (_SIG_MAX+1) |
|
|
227 | #elif defined (MAXSIG) |
|
|
228 | # define EV_NSIG (MAXSIG+1) |
|
|
229 | #elif defined (MAX_SIG) |
|
|
230 | # define EV_NSIG (MAX_SIG+1) |
|
|
231 | #elif defined (SIGARRAYSIZE) |
|
|
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
233 | #elif defined (_sys_nsig) |
|
|
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
235 | #else |
|
|
236 | # error "unable to find value for NSIG, please report" |
|
|
237 | /* to make it compile regardless, just remove the above line, */ |
|
|
238 | /* but consider reporting it, too! :) */ |
|
|
239 | # define EV_NSIG 65 |
|
|
240 | #endif |
|
|
241 | |
|
|
242 | #ifndef EV_USE_FLOOR |
|
|
243 | # define EV_USE_FLOOR 0 |
|
|
244 | #endif |
|
|
245 | |
|
|
246 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
247 | # if __linux && __GLIBC__ >= 2 |
|
|
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
249 | # else |
|
|
250 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
251 | # endif |
|
|
252 | #endif |
|
|
253 | |
168 | #ifndef EV_USE_MONOTONIC |
254 | #ifndef EV_USE_MONOTONIC |
|
|
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
257 | # else |
169 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
|
|
259 | # endif |
170 | #endif |
260 | #endif |
171 | |
261 | |
172 | #ifndef EV_USE_REALTIME |
262 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
263 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
264 | #endif |
175 | |
265 | |
176 | #ifndef EV_USE_NANOSLEEP |
266 | #ifndef EV_USE_NANOSLEEP |
|
|
267 | # if _POSIX_C_SOURCE >= 199309L |
|
|
268 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
269 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
270 | # define EV_USE_NANOSLEEP 0 |
|
|
271 | # endif |
178 | #endif |
272 | #endif |
179 | |
273 | |
180 | #ifndef EV_USE_SELECT |
274 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
275 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
276 | #endif |
183 | |
277 | |
184 | #ifndef EV_USE_POLL |
278 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
279 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
280 | # define EV_USE_POLL 0 |
187 | # else |
281 | # else |
188 | # define EV_USE_POLL 1 |
282 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
283 | # endif |
190 | #endif |
284 | #endif |
191 | |
285 | |
192 | #ifndef EV_USE_EPOLL |
286 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
287 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
288 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
289 | # else |
196 | # define EV_USE_EPOLL 0 |
290 | # define EV_USE_EPOLL 0 |
197 | # endif |
291 | # endif |
198 | #endif |
292 | #endif |
199 | |
293 | |
… | |
… | |
205 | # define EV_USE_PORT 0 |
299 | # define EV_USE_PORT 0 |
206 | #endif |
300 | #endif |
207 | |
301 | |
208 | #ifndef EV_USE_INOTIFY |
302 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
305 | # else |
212 | # define EV_USE_INOTIFY 0 |
306 | # define EV_USE_INOTIFY 0 |
213 | # endif |
307 | # endif |
214 | #endif |
308 | #endif |
215 | |
309 | |
216 | #ifndef EV_PID_HASHSIZE |
310 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
311 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
218 | # define EV_PID_HASHSIZE 1 |
|
|
219 | # else |
|
|
220 | # define EV_PID_HASHSIZE 16 |
|
|
221 | # endif |
|
|
222 | #endif |
312 | #endif |
223 | |
313 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
314 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
315 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
226 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
227 | # else |
|
|
228 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
229 | # endif |
|
|
230 | #endif |
316 | #endif |
231 | |
317 | |
232 | #ifndef EV_USE_EVENTFD |
318 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
320 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
321 | # else |
236 | # define EV_USE_EVENTFD 0 |
322 | # define EV_USE_EVENTFD 0 |
237 | # endif |
323 | # endif |
238 | #endif |
324 | #endif |
239 | |
325 | |
|
|
326 | #ifndef EV_USE_SIGNALFD |
|
|
327 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
328 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
329 | # else |
|
|
330 | # define EV_USE_SIGNALFD 0 |
|
|
331 | # endif |
|
|
332 | #endif |
|
|
333 | |
240 | #if 0 /* debugging */ |
334 | #if 0 /* debugging */ |
241 | # define EV_VERIFY 1 |
335 | # define EV_VERIFY 3 |
242 | # define EV_USE_4HEAP 1 |
336 | # define EV_USE_4HEAP 1 |
243 | # define EV_HEAP_CACHE_AT 1 |
337 | # define EV_HEAP_CACHE_AT 1 |
244 | #endif |
338 | #endif |
245 | |
339 | |
|
|
340 | #ifndef EV_VERIFY |
|
|
341 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
342 | #endif |
|
|
343 | |
246 | #ifndef EV_USE_4HEAP |
344 | #ifndef EV_USE_4HEAP |
247 | # define EV_USE_4HEAP !EV_MINIMAL |
345 | # define EV_USE_4HEAP EV_FEATURE_DATA |
248 | #endif |
346 | #endif |
249 | |
347 | |
250 | #ifndef EV_HEAP_CACHE_AT |
348 | #ifndef EV_HEAP_CACHE_AT |
251 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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 |
252 | #endif |
364 | #endif |
253 | |
365 | |
254 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
367 | |
|
|
368 | #ifdef _AIX |
|
|
369 | /* AIX has a completely broken poll.h header */ |
|
|
370 | # undef EV_USE_POLL |
|
|
371 | # define EV_USE_POLL 0 |
|
|
372 | #endif |
255 | |
373 | |
256 | #ifndef CLOCK_MONOTONIC |
374 | #ifndef CLOCK_MONOTONIC |
257 | # undef EV_USE_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
258 | # define EV_USE_MONOTONIC 0 |
376 | # define EV_USE_MONOTONIC 0 |
259 | #endif |
377 | #endif |
… | |
… | |
267 | # undef EV_USE_INOTIFY |
385 | # undef EV_USE_INOTIFY |
268 | # define EV_USE_INOTIFY 0 |
386 | # define EV_USE_INOTIFY 0 |
269 | #endif |
387 | #endif |
270 | |
388 | |
271 | #if !EV_USE_NANOSLEEP |
389 | #if !EV_USE_NANOSLEEP |
272 | # ifndef _WIN32 |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
391 | # if !defined(_WIN32) && !defined(__hpux) |
273 | # include <sys/select.h> |
392 | # include <sys/select.h> |
274 | # endif |
393 | # endif |
275 | #endif |
394 | #endif |
276 | |
395 | |
277 | #if EV_USE_INOTIFY |
396 | #if EV_USE_INOTIFY |
|
|
397 | # include <sys/statfs.h> |
278 | # 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 |
279 | #endif |
404 | #endif |
280 | |
405 | |
281 | #if EV_SELECT_IS_WINSOCKET |
406 | #if EV_SELECT_IS_WINSOCKET |
282 | # include <winsock.h> |
407 | # include <winsock.h> |
283 | #endif |
408 | #endif |
284 | |
409 | |
285 | #if EV_USE_EVENTFD |
410 | #if EV_USE_EVENTFD |
286 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
287 | # include <stdint.h> |
412 | # include <stdint.h> |
288 | # ifdef __cplusplus |
413 | # ifndef EFD_NONBLOCK |
289 | extern "C" { |
414 | # define EFD_NONBLOCK O_NONBLOCK |
290 | # endif |
415 | # endif |
291 | int eventfd (unsigned int initval, int flags); |
416 | # ifndef EFD_CLOEXEC |
292 | # ifdef __cplusplus |
417 | # ifdef O_CLOEXEC |
293 | } |
418 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
419 | # else |
|
|
420 | # define EFD_CLOEXEC 02000000 |
|
|
421 | # endif |
294 | # 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 | }; |
295 | #endif |
446 | #endif |
296 | |
447 | |
297 | /**/ |
448 | /**/ |
298 | |
449 | |
299 | /* EV_VERIFY: enable internal consistency checks |
|
|
300 | * undefined or zero: no verification done or available |
|
|
301 | * 1 or higher: ev_loop_verify function available |
|
|
302 | * 2 or higher: ev_loop_verify is called frequently |
|
|
303 | */ |
|
|
304 | #if EV_VERIFY >= 1 |
450 | #if EV_VERIFY >= 3 |
305 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
306 | #else |
452 | #else |
307 | # define EV_FREQUENT_CHECK do { } while (0) |
453 | # define EV_FREQUENT_CHECK do { } while (0) |
308 | #endif |
454 | #endif |
309 | |
455 | |
310 | /* |
456 | /* |
311 | * This is used to avoid floating point rounding problems. |
457 | * This is used to work around floating point rounding problems. |
312 | * It is added to ev_rt_now when scheduling periodics |
|
|
313 | * to ensure progress, time-wise, even when rounding |
|
|
314 | * errors are against us. |
|
|
315 | * This value is good at least till the year 4000. |
458 | * This value is good at least till the year 4000. |
316 | * Better solutions welcome. |
|
|
317 | */ |
459 | */ |
318 | #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 */ |
319 | |
462 | |
320 | #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) */ |
321 | #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) */ |
322 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
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) |
323 | |
468 | |
324 | #if __GNUC__ >= 4 |
469 | #if __GNUC__ >= 4 |
325 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
326 | # define noinline __attribute__ ((noinline)) |
471 | # define noinline __attribute__ ((noinline)) |
327 | #else |
472 | #else |
… | |
… | |
334 | |
479 | |
335 | #define expect_false(expr) expect ((expr) != 0, 0) |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
336 | #define expect_true(expr) expect ((expr) != 0, 1) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
337 | #define inline_size static inline |
482 | #define inline_size static inline |
338 | |
483 | |
339 | #if EV_MINIMAL |
484 | #if EV_FEATURE_CODE |
|
|
485 | # define inline_speed static inline |
|
|
486 | #else |
340 | # define inline_speed static noinline |
487 | # define inline_speed static noinline |
|
|
488 | #endif |
|
|
489 | |
|
|
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
491 | |
|
|
492 | #if EV_MINPRI == EV_MAXPRI |
|
|
493 | # define ABSPRI(w) (((W)w), 0) |
341 | #else |
494 | #else |
342 | # define inline_speed static inline |
|
|
343 | #endif |
|
|
344 | |
|
|
345 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
346 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
495 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
496 | #endif |
347 | |
497 | |
348 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
498 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
349 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
499 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
350 | |
500 | |
351 | typedef ev_watcher *W; |
501 | typedef ev_watcher *W; |
… | |
… | |
353 | typedef ev_watcher_time *WT; |
503 | typedef ev_watcher_time *WT; |
354 | |
504 | |
355 | #define ev_active(w) ((W)(w))->active |
505 | #define ev_active(w) ((W)(w))->active |
356 | #define ev_at(w) ((WT)(w))->at |
506 | #define ev_at(w) ((WT)(w))->at |
357 | |
507 | |
|
|
508 | #if EV_USE_REALTIME |
|
|
509 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
510 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
511 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
512 | #endif |
|
|
513 | |
358 | #if EV_USE_MONOTONIC |
514 | #if EV_USE_MONOTONIC |
359 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
360 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
361 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
515 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
516 | #endif |
|
|
517 | |
|
|
518 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
519 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
520 | #endif |
|
|
521 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
522 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
523 | #endif |
|
|
524 | #ifndef EV_WIN32_CLOSE_FD |
|
|
525 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
362 | #endif |
526 | #endif |
363 | |
527 | |
364 | #ifdef _WIN32 |
528 | #ifdef _WIN32 |
365 | # include "ev_win32.c" |
529 | # include "ev_win32.c" |
366 | #endif |
530 | #endif |
367 | |
531 | |
368 | /*****************************************************************************/ |
532 | /*****************************************************************************/ |
369 | |
533 | |
|
|
534 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
535 | |
|
|
536 | #if EV_USE_FLOOR |
|
|
537 | # include <math.h> |
|
|
538 | # define ev_floor(v) floor (v) |
|
|
539 | #else |
|
|
540 | |
|
|
541 | #include <float.h> |
|
|
542 | |
|
|
543 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
544 | static ev_tstamp noinline |
|
|
545 | ev_floor (ev_tstamp v) |
|
|
546 | { |
|
|
547 | /* the choice of shift factor is not terribly important */ |
|
|
548 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
549 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
550 | #else |
|
|
551 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
552 | #endif |
|
|
553 | |
|
|
554 | /* argument too large for an unsigned long? */ |
|
|
555 | if (expect_false (v >= shift)) |
|
|
556 | { |
|
|
557 | ev_tstamp f; |
|
|
558 | |
|
|
559 | if (v == v - 1.) |
|
|
560 | return v; /* very large number */ |
|
|
561 | |
|
|
562 | f = shift * ev_floor (v * (1. / shift)); |
|
|
563 | return f + ev_floor (v - f); |
|
|
564 | } |
|
|
565 | |
|
|
566 | /* special treatment for negative args? */ |
|
|
567 | if (expect_false (v < 0.)) |
|
|
568 | { |
|
|
569 | ev_tstamp f = -ev_floor (-v); |
|
|
570 | |
|
|
571 | return f - (f == v ? 0 : 1); |
|
|
572 | } |
|
|
573 | |
|
|
574 | /* fits into an unsigned long */ |
|
|
575 | return (unsigned long)v; |
|
|
576 | } |
|
|
577 | |
|
|
578 | #endif |
|
|
579 | |
|
|
580 | /*****************************************************************************/ |
|
|
581 | |
|
|
582 | #ifdef __linux |
|
|
583 | # include <sys/utsname.h> |
|
|
584 | #endif |
|
|
585 | |
|
|
586 | static unsigned int noinline |
|
|
587 | ev_linux_version (void) |
|
|
588 | { |
|
|
589 | #ifdef __linux |
|
|
590 | unsigned int v = 0; |
|
|
591 | struct utsname buf; |
|
|
592 | int i; |
|
|
593 | char *p = buf.release; |
|
|
594 | |
|
|
595 | if (uname (&buf)) |
|
|
596 | return 0; |
|
|
597 | |
|
|
598 | for (i = 3+1; --i; ) |
|
|
599 | { |
|
|
600 | unsigned int c = 0; |
|
|
601 | |
|
|
602 | for (;;) |
|
|
603 | { |
|
|
604 | if (*p >= '0' && *p <= '9') |
|
|
605 | c = c * 10 + *p++ - '0'; |
|
|
606 | else |
|
|
607 | { |
|
|
608 | p += *p == '.'; |
|
|
609 | break; |
|
|
610 | } |
|
|
611 | } |
|
|
612 | |
|
|
613 | v = (v << 8) | c; |
|
|
614 | } |
|
|
615 | |
|
|
616 | return v; |
|
|
617 | #else |
|
|
618 | return 0; |
|
|
619 | #endif |
|
|
620 | } |
|
|
621 | |
|
|
622 | /*****************************************************************************/ |
|
|
623 | |
|
|
624 | #if EV_AVOID_STDIO |
|
|
625 | static void noinline |
|
|
626 | ev_printerr (const char *msg) |
|
|
627 | { |
|
|
628 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
629 | } |
|
|
630 | #endif |
|
|
631 | |
370 | static void (*syserr_cb)(const char *msg); |
632 | static void (*syserr_cb)(const char *msg); |
371 | |
633 | |
372 | void |
634 | void |
373 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
374 | { |
636 | { |
375 | syserr_cb = cb; |
637 | syserr_cb = cb; |
376 | } |
638 | } |
377 | |
639 | |
378 | static void noinline |
640 | static void noinline |
379 | syserr (const char *msg) |
641 | ev_syserr (const char *msg) |
380 | { |
642 | { |
381 | if (!msg) |
643 | if (!msg) |
382 | msg = "(libev) system error"; |
644 | msg = "(libev) system error"; |
383 | |
645 | |
384 | if (syserr_cb) |
646 | if (syserr_cb) |
385 | syserr_cb (msg); |
647 | syserr_cb (msg); |
386 | else |
648 | else |
387 | { |
649 | { |
|
|
650 | #if EV_AVOID_STDIO |
|
|
651 | ev_printerr (msg); |
|
|
652 | ev_printerr (": "); |
|
|
653 | ev_printerr (strerror (errno)); |
|
|
654 | ev_printerr ("\n"); |
|
|
655 | #else |
388 | perror (msg); |
656 | perror (msg); |
|
|
657 | #endif |
389 | abort (); |
658 | abort (); |
390 | } |
659 | } |
391 | } |
660 | } |
392 | |
661 | |
393 | static void * |
662 | static void * |
394 | ev_realloc_emul (void *ptr, long size) |
663 | ev_realloc_emul (void *ptr, long size) |
395 | { |
664 | { |
|
|
665 | #if __GLIBC__ |
|
|
666 | return realloc (ptr, size); |
|
|
667 | #else |
396 | /* some systems, notably openbsd and darwin, fail to properly |
668 | /* some systems, notably openbsd and darwin, fail to properly |
397 | * implement realloc (x, 0) (as required by both ansi c-98 and |
669 | * implement realloc (x, 0) (as required by both ansi c-89 and |
398 | * the single unix specification, so work around them here. |
670 | * the single unix specification, so work around them here. |
399 | */ |
671 | */ |
400 | |
672 | |
401 | if (size) |
673 | if (size) |
402 | return realloc (ptr, size); |
674 | return realloc (ptr, size); |
403 | |
675 | |
404 | free (ptr); |
676 | free (ptr); |
405 | return 0; |
677 | return 0; |
|
|
678 | #endif |
406 | } |
679 | } |
407 | |
680 | |
408 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
409 | |
682 | |
410 | void |
683 | void |
… | |
… | |
418 | { |
691 | { |
419 | ptr = alloc (ptr, size); |
692 | ptr = alloc (ptr, size); |
420 | |
693 | |
421 | if (!ptr && size) |
694 | if (!ptr && size) |
422 | { |
695 | { |
|
|
696 | #if EV_AVOID_STDIO |
|
|
697 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
698 | #else |
423 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
699 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
700 | #endif |
424 | abort (); |
701 | abort (); |
425 | } |
702 | } |
426 | |
703 | |
427 | return ptr; |
704 | return ptr; |
428 | } |
705 | } |
… | |
… | |
430 | #define ev_malloc(size) ev_realloc (0, (size)) |
707 | #define ev_malloc(size) ev_realloc (0, (size)) |
431 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
708 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
432 | |
709 | |
433 | /*****************************************************************************/ |
710 | /*****************************************************************************/ |
434 | |
711 | |
|
|
712 | /* set in reify when reification needed */ |
|
|
713 | #define EV_ANFD_REIFY 1 |
|
|
714 | |
|
|
715 | /* file descriptor info structure */ |
435 | typedef struct |
716 | typedef struct |
436 | { |
717 | { |
437 | WL head; |
718 | WL head; |
438 | unsigned char events; |
719 | unsigned char events; /* the events watched for */ |
|
|
720 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
721 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
439 | unsigned char reify; |
722 | unsigned char unused; |
|
|
723 | #if EV_USE_EPOLL |
|
|
724 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
725 | #endif |
440 | #if EV_SELECT_IS_WINSOCKET |
726 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
441 | SOCKET handle; |
727 | SOCKET handle; |
442 | #endif |
728 | #endif |
|
|
729 | #if EV_USE_IOCP |
|
|
730 | OVERLAPPED or, ow; |
|
|
731 | #endif |
443 | } ANFD; |
732 | } ANFD; |
444 | |
733 | |
|
|
734 | /* stores the pending event set for a given watcher */ |
445 | typedef struct |
735 | typedef struct |
446 | { |
736 | { |
447 | W w; |
737 | W w; |
448 | int events; |
738 | int events; /* the pending event set for the given watcher */ |
449 | } ANPENDING; |
739 | } ANPENDING; |
450 | |
740 | |
451 | #if EV_USE_INOTIFY |
741 | #if EV_USE_INOTIFY |
452 | /* hash table entry per inotify-id */ |
742 | /* hash table entry per inotify-id */ |
453 | typedef struct |
743 | typedef struct |
… | |
… | |
456 | } ANFS; |
746 | } ANFS; |
457 | #endif |
747 | #endif |
458 | |
748 | |
459 | /* Heap Entry */ |
749 | /* Heap Entry */ |
460 | #if EV_HEAP_CACHE_AT |
750 | #if EV_HEAP_CACHE_AT |
|
|
751 | /* a heap element */ |
461 | typedef struct { |
752 | typedef struct { |
462 | ev_tstamp at; |
753 | ev_tstamp at; |
463 | WT w; |
754 | WT w; |
464 | } ANHE; |
755 | } ANHE; |
465 | |
756 | |
466 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
757 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
467 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
758 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
468 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
759 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
469 | #else |
760 | #else |
|
|
761 | /* a heap element */ |
470 | typedef WT ANHE; |
762 | typedef WT ANHE; |
471 | |
763 | |
472 | #define ANHE_w(he) (he) |
764 | #define ANHE_w(he) (he) |
473 | #define ANHE_at(he) (he)->at |
765 | #define ANHE_at(he) (he)->at |
474 | #define ANHE_at_cache(he) |
766 | #define ANHE_at_cache(he) |
… | |
… | |
498 | |
790 | |
499 | static int ev_default_loop_ptr; |
791 | static int ev_default_loop_ptr; |
500 | |
792 | |
501 | #endif |
793 | #endif |
502 | |
794 | |
|
|
795 | #if EV_FEATURE_API |
|
|
796 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
797 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
798 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
799 | #else |
|
|
800 | # define EV_RELEASE_CB (void)0 |
|
|
801 | # define EV_ACQUIRE_CB (void)0 |
|
|
802 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
803 | #endif |
|
|
804 | |
|
|
805 | #define EVBREAK_RECURSE 0x80 |
|
|
806 | |
503 | /*****************************************************************************/ |
807 | /*****************************************************************************/ |
504 | |
808 | |
|
|
809 | #ifndef EV_HAVE_EV_TIME |
505 | ev_tstamp |
810 | ev_tstamp |
506 | ev_time (void) |
811 | ev_time (void) |
507 | { |
812 | { |
508 | #if EV_USE_REALTIME |
813 | #if EV_USE_REALTIME |
|
|
814 | if (expect_true (have_realtime)) |
|
|
815 | { |
509 | struct timespec ts; |
816 | struct timespec ts; |
510 | clock_gettime (CLOCK_REALTIME, &ts); |
817 | clock_gettime (CLOCK_REALTIME, &ts); |
511 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
818 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
512 | #else |
819 | } |
|
|
820 | #endif |
|
|
821 | |
513 | struct timeval tv; |
822 | struct timeval tv; |
514 | gettimeofday (&tv, 0); |
823 | gettimeofday (&tv, 0); |
515 | return tv.tv_sec + tv.tv_usec * 1e-6; |
824 | return tv.tv_sec + tv.tv_usec * 1e-6; |
516 | #endif |
|
|
517 | } |
825 | } |
|
|
826 | #endif |
518 | |
827 | |
519 | ev_tstamp inline_size |
828 | inline_size ev_tstamp |
520 | get_clock (void) |
829 | get_clock (void) |
521 | { |
830 | { |
522 | #if EV_USE_MONOTONIC |
831 | #if EV_USE_MONOTONIC |
523 | if (expect_true (have_monotonic)) |
832 | if (expect_true (have_monotonic)) |
524 | { |
833 | { |
… | |
… | |
545 | if (delay > 0.) |
854 | if (delay > 0.) |
546 | { |
855 | { |
547 | #if EV_USE_NANOSLEEP |
856 | #if EV_USE_NANOSLEEP |
548 | struct timespec ts; |
857 | struct timespec ts; |
549 | |
858 | |
550 | ts.tv_sec = (time_t)delay; |
859 | EV_TS_SET (ts, delay); |
551 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
552 | |
|
|
553 | nanosleep (&ts, 0); |
860 | nanosleep (&ts, 0); |
554 | #elif defined(_WIN32) |
861 | #elif defined(_WIN32) |
555 | Sleep ((unsigned long)(delay * 1e3)); |
862 | Sleep ((unsigned long)(delay * 1e3)); |
556 | #else |
863 | #else |
557 | struct timeval tv; |
864 | struct timeval tv; |
558 | |
865 | |
559 | tv.tv_sec = (time_t)delay; |
866 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
560 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
867 | /* something not guaranteed by newer posix versions, but guaranteed */ |
561 | |
868 | /* by older ones */ |
|
|
869 | EV_TV_SET (tv, delay); |
562 | select (0, 0, 0, 0, &tv); |
870 | select (0, 0, 0, 0, &tv); |
563 | #endif |
871 | #endif |
564 | } |
872 | } |
565 | } |
873 | } |
566 | |
874 | |
567 | /*****************************************************************************/ |
875 | /*****************************************************************************/ |
568 | |
876 | |
569 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
877 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
570 | |
878 | |
571 | int inline_size |
879 | /* find a suitable new size for the given array, */ |
|
|
880 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
881 | inline_size int |
572 | array_nextsize (int elem, int cur, int cnt) |
882 | array_nextsize (int elem, int cur, int cnt) |
573 | { |
883 | { |
574 | int ncur = cur + 1; |
884 | int ncur = cur + 1; |
575 | |
885 | |
576 | do |
886 | do |
… | |
… | |
593 | array_realloc (int elem, void *base, int *cur, int cnt) |
903 | array_realloc (int elem, void *base, int *cur, int cnt) |
594 | { |
904 | { |
595 | *cur = array_nextsize (elem, *cur, cnt); |
905 | *cur = array_nextsize (elem, *cur, cnt); |
596 | return ev_realloc (base, elem * *cur); |
906 | return ev_realloc (base, elem * *cur); |
597 | } |
907 | } |
|
|
908 | |
|
|
909 | #define array_init_zero(base,count) \ |
|
|
910 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
598 | |
911 | |
599 | #define array_needsize(type,base,cur,cnt,init) \ |
912 | #define array_needsize(type,base,cur,cnt,init) \ |
600 | if (expect_false ((cnt) > (cur))) \ |
913 | if (expect_false ((cnt) > (cur))) \ |
601 | { \ |
914 | { \ |
602 | int ocur_ = (cur); \ |
915 | int ocur_ = (cur); \ |
… | |
… | |
614 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
927 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
615 | } |
928 | } |
616 | #endif |
929 | #endif |
617 | |
930 | |
618 | #define array_free(stem, idx) \ |
931 | #define array_free(stem, idx) \ |
619 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
932 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
620 | |
933 | |
621 | /*****************************************************************************/ |
934 | /*****************************************************************************/ |
|
|
935 | |
|
|
936 | /* dummy callback for pending events */ |
|
|
937 | static void noinline |
|
|
938 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
939 | { |
|
|
940 | } |
622 | |
941 | |
623 | void noinline |
942 | void noinline |
624 | ev_feed_event (EV_P_ void *w, int revents) |
943 | ev_feed_event (EV_P_ void *w, int revents) |
625 | { |
944 | { |
626 | W w_ = (W)w; |
945 | W w_ = (W)w; |
… | |
… | |
635 | pendings [pri][w_->pending - 1].w = w_; |
954 | pendings [pri][w_->pending - 1].w = w_; |
636 | pendings [pri][w_->pending - 1].events = revents; |
955 | pendings [pri][w_->pending - 1].events = revents; |
637 | } |
956 | } |
638 | } |
957 | } |
639 | |
958 | |
640 | void inline_speed |
959 | inline_speed void |
|
|
960 | feed_reverse (EV_P_ W w) |
|
|
961 | { |
|
|
962 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
963 | rfeeds [rfeedcnt++] = w; |
|
|
964 | } |
|
|
965 | |
|
|
966 | inline_size void |
|
|
967 | feed_reverse_done (EV_P_ int revents) |
|
|
968 | { |
|
|
969 | do |
|
|
970 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
971 | while (rfeedcnt); |
|
|
972 | } |
|
|
973 | |
|
|
974 | inline_speed void |
641 | queue_events (EV_P_ W *events, int eventcnt, int type) |
975 | queue_events (EV_P_ W *events, int eventcnt, int type) |
642 | { |
976 | { |
643 | int i; |
977 | int i; |
644 | |
978 | |
645 | for (i = 0; i < eventcnt; ++i) |
979 | for (i = 0; i < eventcnt; ++i) |
646 | ev_feed_event (EV_A_ events [i], type); |
980 | ev_feed_event (EV_A_ events [i], type); |
647 | } |
981 | } |
648 | |
982 | |
649 | /*****************************************************************************/ |
983 | /*****************************************************************************/ |
650 | |
984 | |
651 | void inline_size |
985 | inline_speed void |
652 | anfds_init (ANFD *base, int count) |
|
|
653 | { |
|
|
654 | while (count--) |
|
|
655 | { |
|
|
656 | base->head = 0; |
|
|
657 | base->events = EV_NONE; |
|
|
658 | base->reify = 0; |
|
|
659 | |
|
|
660 | ++base; |
|
|
661 | } |
|
|
662 | } |
|
|
663 | |
|
|
664 | void inline_speed |
|
|
665 | fd_event (EV_P_ int fd, int revents) |
986 | fd_event_nocheck (EV_P_ int fd, int revents) |
666 | { |
987 | { |
667 | ANFD *anfd = anfds + fd; |
988 | ANFD *anfd = anfds + fd; |
668 | ev_io *w; |
989 | ev_io *w; |
669 | |
990 | |
670 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
991 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
674 | if (ev) |
995 | if (ev) |
675 | ev_feed_event (EV_A_ (W)w, ev); |
996 | ev_feed_event (EV_A_ (W)w, ev); |
676 | } |
997 | } |
677 | } |
998 | } |
678 | |
999 | |
|
|
1000 | /* do not submit kernel events for fds that have reify set */ |
|
|
1001 | /* because that means they changed while we were polling for new events */ |
|
|
1002 | inline_speed void |
|
|
1003 | fd_event (EV_P_ int fd, int revents) |
|
|
1004 | { |
|
|
1005 | ANFD *anfd = anfds + fd; |
|
|
1006 | |
|
|
1007 | if (expect_true (!anfd->reify)) |
|
|
1008 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1009 | } |
|
|
1010 | |
679 | void |
1011 | void |
680 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1012 | ev_feed_fd_event (EV_P_ int fd, int revents) |
681 | { |
1013 | { |
682 | if (fd >= 0 && fd < anfdmax) |
1014 | if (fd >= 0 && fd < anfdmax) |
683 | fd_event (EV_A_ fd, revents); |
1015 | fd_event_nocheck (EV_A_ fd, revents); |
684 | } |
1016 | } |
685 | |
1017 | |
686 | void inline_size |
1018 | /* make sure the external fd watch events are in-sync */ |
|
|
1019 | /* with the kernel/libev internal state */ |
|
|
1020 | inline_size void |
687 | fd_reify (EV_P) |
1021 | fd_reify (EV_P) |
688 | { |
1022 | { |
689 | int i; |
1023 | int i; |
|
|
1024 | |
|
|
1025 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1026 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1027 | { |
|
|
1028 | int fd = fdchanges [i]; |
|
|
1029 | ANFD *anfd = anfds + fd; |
|
|
1030 | |
|
|
1031 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1032 | { |
|
|
1033 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1034 | |
|
|
1035 | if (handle != anfd->handle) |
|
|
1036 | { |
|
|
1037 | unsigned long arg; |
|
|
1038 | |
|
|
1039 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1040 | |
|
|
1041 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1042 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1043 | anfd->events = 0; |
|
|
1044 | anfd->handle = handle; |
|
|
1045 | } |
|
|
1046 | } |
|
|
1047 | } |
|
|
1048 | #endif |
690 | |
1049 | |
691 | for (i = 0; i < fdchangecnt; ++i) |
1050 | for (i = 0; i < fdchangecnt; ++i) |
692 | { |
1051 | { |
693 | int fd = fdchanges [i]; |
1052 | int fd = fdchanges [i]; |
694 | ANFD *anfd = anfds + fd; |
1053 | ANFD *anfd = anfds + fd; |
695 | ev_io *w; |
1054 | ev_io *w; |
696 | |
1055 | |
697 | unsigned char events = 0; |
1056 | unsigned char o_events = anfd->events; |
|
|
1057 | unsigned char o_reify = anfd->reify; |
698 | |
1058 | |
699 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1059 | anfd->reify = 0; |
700 | events |= (unsigned char)w->events; |
|
|
701 | |
1060 | |
702 | #if EV_SELECT_IS_WINSOCKET |
1061 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
703 | if (events) |
|
|
704 | { |
1062 | { |
705 | unsigned long argp; |
1063 | anfd->events = 0; |
706 | #ifdef EV_FD_TO_WIN32_HANDLE |
1064 | |
707 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1065 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
708 | #else |
1066 | anfd->events |= (unsigned char)w->events; |
709 | anfd->handle = _get_osfhandle (fd); |
1067 | |
710 | #endif |
1068 | if (o_events != anfd->events) |
711 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1069 | o_reify = EV__IOFDSET; /* actually |= */ |
712 | } |
1070 | } |
713 | #endif |
|
|
714 | |
1071 | |
715 | { |
1072 | if (o_reify & EV__IOFDSET) |
716 | unsigned char o_events = anfd->events; |
|
|
717 | unsigned char o_reify = anfd->reify; |
|
|
718 | |
|
|
719 | anfd->reify = 0; |
|
|
720 | anfd->events = events; |
|
|
721 | |
|
|
722 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
723 | backend_modify (EV_A_ fd, o_events, events); |
1073 | backend_modify (EV_A_ fd, o_events, anfd->events); |
724 | } |
|
|
725 | } |
1074 | } |
726 | |
1075 | |
727 | fdchangecnt = 0; |
1076 | fdchangecnt = 0; |
728 | } |
1077 | } |
729 | |
1078 | |
730 | void inline_size |
1079 | /* something about the given fd changed */ |
|
|
1080 | inline_size void |
731 | fd_change (EV_P_ int fd, int flags) |
1081 | fd_change (EV_P_ int fd, int flags) |
732 | { |
1082 | { |
733 | unsigned char reify = anfds [fd].reify; |
1083 | unsigned char reify = anfds [fd].reify; |
734 | anfds [fd].reify |= flags; |
1084 | anfds [fd].reify |= flags; |
735 | |
1085 | |
… | |
… | |
739 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1089 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
740 | fdchanges [fdchangecnt - 1] = fd; |
1090 | fdchanges [fdchangecnt - 1] = fd; |
741 | } |
1091 | } |
742 | } |
1092 | } |
743 | |
1093 | |
744 | void inline_speed |
1094 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1095 | inline_speed void |
745 | fd_kill (EV_P_ int fd) |
1096 | fd_kill (EV_P_ int fd) |
746 | { |
1097 | { |
747 | ev_io *w; |
1098 | ev_io *w; |
748 | |
1099 | |
749 | while ((w = (ev_io *)anfds [fd].head)) |
1100 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
751 | ev_io_stop (EV_A_ w); |
1102 | ev_io_stop (EV_A_ w); |
752 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1103 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
753 | } |
1104 | } |
754 | } |
1105 | } |
755 | |
1106 | |
756 | int inline_size |
1107 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1108 | inline_size int |
757 | fd_valid (int fd) |
1109 | fd_valid (int fd) |
758 | { |
1110 | { |
759 | #ifdef _WIN32 |
1111 | #ifdef _WIN32 |
760 | return _get_osfhandle (fd) != -1; |
1112 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
761 | #else |
1113 | #else |
762 | return fcntl (fd, F_GETFD) != -1; |
1114 | return fcntl (fd, F_GETFD) != -1; |
763 | #endif |
1115 | #endif |
764 | } |
1116 | } |
765 | |
1117 | |
… | |
… | |
769 | { |
1121 | { |
770 | int fd; |
1122 | int fd; |
771 | |
1123 | |
772 | for (fd = 0; fd < anfdmax; ++fd) |
1124 | for (fd = 0; fd < anfdmax; ++fd) |
773 | if (anfds [fd].events) |
1125 | if (anfds [fd].events) |
774 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1126 | if (!fd_valid (fd) && errno == EBADF) |
775 | fd_kill (EV_A_ fd); |
1127 | fd_kill (EV_A_ fd); |
776 | } |
1128 | } |
777 | |
1129 | |
778 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1130 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
779 | static void noinline |
1131 | static void noinline |
… | |
… | |
783 | |
1135 | |
784 | for (fd = anfdmax; fd--; ) |
1136 | for (fd = anfdmax; fd--; ) |
785 | if (anfds [fd].events) |
1137 | if (anfds [fd].events) |
786 | { |
1138 | { |
787 | fd_kill (EV_A_ fd); |
1139 | fd_kill (EV_A_ fd); |
788 | return; |
1140 | break; |
789 | } |
1141 | } |
790 | } |
1142 | } |
791 | |
1143 | |
792 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1144 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
793 | static void noinline |
1145 | static void noinline |
… | |
… | |
797 | |
1149 | |
798 | for (fd = 0; fd < anfdmax; ++fd) |
1150 | for (fd = 0; fd < anfdmax; ++fd) |
799 | if (anfds [fd].events) |
1151 | if (anfds [fd].events) |
800 | { |
1152 | { |
801 | anfds [fd].events = 0; |
1153 | anfds [fd].events = 0; |
|
|
1154 | anfds [fd].emask = 0; |
802 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1155 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
803 | } |
1156 | } |
804 | } |
1157 | } |
805 | |
1158 | |
|
|
1159 | /* used to prepare libev internal fd's */ |
|
|
1160 | /* this is not fork-safe */ |
|
|
1161 | inline_speed void |
|
|
1162 | fd_intern (int fd) |
|
|
1163 | { |
|
|
1164 | #ifdef _WIN32 |
|
|
1165 | unsigned long arg = 1; |
|
|
1166 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1167 | #else |
|
|
1168 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1169 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1170 | #endif |
|
|
1171 | } |
|
|
1172 | |
806 | /*****************************************************************************/ |
1173 | /*****************************************************************************/ |
807 | |
1174 | |
808 | /* |
1175 | /* |
809 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1176 | * the heap functions want a real array index. array index 0 is guaranteed to not |
810 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1177 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
811 | * the branching factor of the d-tree. |
1178 | * the branching factor of the d-tree. |
812 | */ |
1179 | */ |
813 | |
1180 | |
814 | /* |
1181 | /* |
… | |
… | |
823 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1190 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
824 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1191 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
825 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1192 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
826 | |
1193 | |
827 | /* away from the root */ |
1194 | /* away from the root */ |
828 | void inline_speed |
1195 | inline_speed void |
829 | downheap (ANHE *heap, int N, int k) |
1196 | downheap (ANHE *heap, int N, int k) |
830 | { |
1197 | { |
831 | ANHE he = heap [k]; |
1198 | ANHE he = heap [k]; |
832 | ANHE *E = heap + N + HEAP0; |
1199 | ANHE *E = heap + N + HEAP0; |
833 | |
1200 | |
… | |
… | |
873 | #define HEAP0 1 |
1240 | #define HEAP0 1 |
874 | #define HPARENT(k) ((k) >> 1) |
1241 | #define HPARENT(k) ((k) >> 1) |
875 | #define UPHEAP_DONE(p,k) (!(p)) |
1242 | #define UPHEAP_DONE(p,k) (!(p)) |
876 | |
1243 | |
877 | /* away from the root */ |
1244 | /* away from the root */ |
878 | void inline_speed |
1245 | inline_speed void |
879 | downheap (ANHE *heap, int N, int k) |
1246 | downheap (ANHE *heap, int N, int k) |
880 | { |
1247 | { |
881 | ANHE he = heap [k]; |
1248 | ANHE he = heap [k]; |
882 | |
1249 | |
883 | for (;;) |
1250 | for (;;) |
884 | { |
1251 | { |
885 | int c = k << 1; |
1252 | int c = k << 1; |
886 | |
1253 | |
887 | if (c > N + HEAP0 - 1) |
1254 | if (c >= N + HEAP0) |
888 | break; |
1255 | break; |
889 | |
1256 | |
890 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1257 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
891 | ? 1 : 0; |
1258 | ? 1 : 0; |
892 | |
1259 | |
… | |
… | |
903 | ev_active (ANHE_w (he)) = k; |
1270 | ev_active (ANHE_w (he)) = k; |
904 | } |
1271 | } |
905 | #endif |
1272 | #endif |
906 | |
1273 | |
907 | /* towards the root */ |
1274 | /* towards the root */ |
908 | void inline_speed |
1275 | inline_speed void |
909 | upheap (ANHE *heap, int k) |
1276 | upheap (ANHE *heap, int k) |
910 | { |
1277 | { |
911 | ANHE he = heap [k]; |
1278 | ANHE he = heap [k]; |
912 | |
1279 | |
913 | for (;;) |
1280 | for (;;) |
… | |
… | |
924 | |
1291 | |
925 | heap [k] = he; |
1292 | heap [k] = he; |
926 | ev_active (ANHE_w (he)) = k; |
1293 | ev_active (ANHE_w (he)) = k; |
927 | } |
1294 | } |
928 | |
1295 | |
929 | void inline_size |
1296 | /* move an element suitably so it is in a correct place */ |
|
|
1297 | inline_size void |
930 | adjustheap (ANHE *heap, int N, int k) |
1298 | adjustheap (ANHE *heap, int N, int k) |
931 | { |
1299 | { |
932 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1300 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
933 | upheap (heap, k); |
1301 | upheap (heap, k); |
934 | else |
1302 | else |
935 | downheap (heap, N, k); |
1303 | downheap (heap, N, k); |
936 | } |
1304 | } |
937 | |
1305 | |
938 | /* rebuild the heap: this function is used only once and executed rarely */ |
1306 | /* rebuild the heap: this function is used only once and executed rarely */ |
939 | void inline_size |
1307 | inline_size void |
940 | reheap (ANHE *heap, int N) |
1308 | reheap (ANHE *heap, int N) |
941 | { |
1309 | { |
942 | int i; |
1310 | int i; |
|
|
1311 | |
943 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1312 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
944 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
1313 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
945 | for (i = 0; i < N; ++i) |
1314 | for (i = 0; i < N; ++i) |
946 | upheap (heap, i + HEAP0); |
1315 | upheap (heap, i + HEAP0); |
947 | } |
1316 | } |
948 | |
1317 | |
949 | #if EV_VERIFY |
|
|
950 | static void |
|
|
951 | checkheap (ANHE *heap, int N) |
|
|
952 | { |
|
|
953 | int i; |
|
|
954 | |
|
|
955 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
956 | { |
|
|
957 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
958 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
959 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
960 | } |
|
|
961 | } |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | /*****************************************************************************/ |
1318 | /*****************************************************************************/ |
965 | |
1319 | |
|
|
1320 | /* associate signal watchers to a signal signal */ |
966 | typedef struct |
1321 | typedef struct |
967 | { |
1322 | { |
|
|
1323 | EV_ATOMIC_T pending; |
|
|
1324 | #if EV_MULTIPLICITY |
|
|
1325 | EV_P; |
|
|
1326 | #endif |
968 | WL head; |
1327 | WL head; |
969 | EV_ATOMIC_T gotsig; |
|
|
970 | } ANSIG; |
1328 | } ANSIG; |
971 | |
1329 | |
972 | static ANSIG *signals; |
1330 | static ANSIG signals [EV_NSIG - 1]; |
973 | static int signalmax; |
|
|
974 | |
|
|
975 | static EV_ATOMIC_T gotsig; |
|
|
976 | |
|
|
977 | void inline_size |
|
|
978 | signals_init (ANSIG *base, int count) |
|
|
979 | { |
|
|
980 | while (count--) |
|
|
981 | { |
|
|
982 | base->head = 0; |
|
|
983 | base->gotsig = 0; |
|
|
984 | |
|
|
985 | ++base; |
|
|
986 | } |
|
|
987 | } |
|
|
988 | |
1331 | |
989 | /*****************************************************************************/ |
1332 | /*****************************************************************************/ |
990 | |
1333 | |
991 | void inline_speed |
1334 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
992 | fd_intern (int fd) |
|
|
993 | { |
|
|
994 | #ifdef _WIN32 |
|
|
995 | int arg = 1; |
|
|
996 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
997 | #else |
|
|
998 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
999 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1000 | #endif |
|
|
1001 | } |
|
|
1002 | |
1335 | |
1003 | static void noinline |
1336 | static void noinline |
1004 | evpipe_init (EV_P) |
1337 | evpipe_init (EV_P) |
1005 | { |
1338 | { |
1006 | if (!ev_is_active (&pipeev)) |
1339 | if (!ev_is_active (&pipe_w)) |
1007 | { |
1340 | { |
1008 | #if EV_USE_EVENTFD |
1341 | # if EV_USE_EVENTFD |
|
|
1342 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1343 | if (evfd < 0 && errno == EINVAL) |
1009 | if ((evfd = eventfd (0, 0)) >= 0) |
1344 | evfd = eventfd (0, 0); |
|
|
1345 | |
|
|
1346 | if (evfd >= 0) |
1010 | { |
1347 | { |
1011 | evpipe [0] = -1; |
1348 | evpipe [0] = -1; |
1012 | fd_intern (evfd); |
1349 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1013 | ev_io_set (&pipeev, evfd, EV_READ); |
1350 | ev_io_set (&pipe_w, evfd, EV_READ); |
1014 | } |
1351 | } |
1015 | else |
1352 | else |
1016 | #endif |
1353 | # endif |
1017 | { |
1354 | { |
1018 | while (pipe (evpipe)) |
1355 | while (pipe (evpipe)) |
1019 | syserr ("(libev) error creating signal/async pipe"); |
1356 | ev_syserr ("(libev) error creating signal/async pipe"); |
1020 | |
1357 | |
1021 | fd_intern (evpipe [0]); |
1358 | fd_intern (evpipe [0]); |
1022 | fd_intern (evpipe [1]); |
1359 | fd_intern (evpipe [1]); |
1023 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1360 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1024 | } |
1361 | } |
1025 | |
1362 | |
1026 | ev_io_start (EV_A_ &pipeev); |
1363 | ev_io_start (EV_A_ &pipe_w); |
1027 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1364 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1028 | } |
1365 | } |
1029 | } |
1366 | } |
1030 | |
1367 | |
1031 | void inline_size |
1368 | inline_size void |
1032 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1369 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1033 | { |
1370 | { |
1034 | if (!*flag) |
1371 | if (!*flag) |
1035 | { |
1372 | { |
1036 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1037 | |
|
|
1038 | *flag = 1; |
1373 | *flag = 1; |
1039 | |
1374 | |
|
|
1375 | pipe_write_skipped = 1; |
|
|
1376 | |
|
|
1377 | if (pipe_write_wanted) |
|
|
1378 | { |
|
|
1379 | int old_errno = errno; /* save errno because write will clobber it */ |
|
|
1380 | char dummy; |
|
|
1381 | |
|
|
1382 | pipe_write_skipped = 0; |
|
|
1383 | |
|
|
1384 | #if EV_USE_EVENTFD |
|
|
1385 | if (evfd >= 0) |
|
|
1386 | { |
|
|
1387 | uint64_t counter = 1; |
|
|
1388 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1389 | } |
|
|
1390 | else |
|
|
1391 | #endif |
|
|
1392 | { |
|
|
1393 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1394 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1395 | /* so when you think this write should be a send instead, please find out */ |
|
|
1396 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1397 | /* tell me. thank you. */ |
|
|
1398 | write (evpipe [1], &dummy, 1); |
|
|
1399 | } |
|
|
1400 | |
|
|
1401 | errno = old_errno; |
|
|
1402 | } |
|
|
1403 | } |
|
|
1404 | } |
|
|
1405 | |
|
|
1406 | /* called whenever the libev signal pipe */ |
|
|
1407 | /* got some events (signal, async) */ |
|
|
1408 | static void |
|
|
1409 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1410 | { |
|
|
1411 | int i; |
|
|
1412 | |
|
|
1413 | if (revents & EV_READ) |
|
|
1414 | { |
1040 | #if EV_USE_EVENTFD |
1415 | #if EV_USE_EVENTFD |
1041 | if (evfd >= 0) |
1416 | if (evfd >= 0) |
1042 | { |
1417 | { |
1043 | uint64_t counter = 1; |
1418 | uint64_t counter; |
1044 | write (evfd, &counter, sizeof (uint64_t)); |
1419 | read (evfd, &counter, sizeof (uint64_t)); |
1045 | } |
1420 | } |
1046 | else |
1421 | else |
1047 | #endif |
1422 | #endif |
1048 | write (evpipe [1], &old_errno, 1); |
1423 | { |
1049 | |
|
|
1050 | errno = old_errno; |
|
|
1051 | } |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | static void |
|
|
1055 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1056 | { |
|
|
1057 | #if EV_USE_EVENTFD |
|
|
1058 | if (evfd >= 0) |
|
|
1059 | { |
|
|
1060 | uint64_t counter; |
|
|
1061 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1062 | } |
|
|
1063 | else |
|
|
1064 | #endif |
|
|
1065 | { |
|
|
1066 | char dummy; |
1424 | char dummy; |
|
|
1425 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1067 | read (evpipe [0], &dummy, 1); |
1426 | read (evpipe [0], &dummy, 1); |
|
|
1427 | } |
|
|
1428 | } |
|
|
1429 | |
|
|
1430 | pipe_write_skipped = 0; |
|
|
1431 | |
|
|
1432 | #if EV_SIGNAL_ENABLE |
|
|
1433 | if (sig_pending) |
1068 | } |
1434 | { |
|
|
1435 | sig_pending = 0; |
1069 | |
1436 | |
1070 | if (gotsig && ev_is_default_loop (EV_A)) |
1437 | for (i = EV_NSIG - 1; i--; ) |
1071 | { |
1438 | if (expect_false (signals [i].pending)) |
1072 | int signum; |
|
|
1073 | gotsig = 0; |
|
|
1074 | |
|
|
1075 | for (signum = signalmax; signum--; ) |
|
|
1076 | if (signals [signum].gotsig) |
|
|
1077 | ev_feed_signal_event (EV_A_ signum + 1); |
1439 | ev_feed_signal_event (EV_A_ i + 1); |
1078 | } |
1440 | } |
|
|
1441 | #endif |
1079 | |
1442 | |
1080 | #if EV_ASYNC_ENABLE |
1443 | #if EV_ASYNC_ENABLE |
1081 | if (gotasync) |
1444 | if (async_pending) |
1082 | { |
1445 | { |
1083 | int i; |
1446 | async_pending = 0; |
1084 | gotasync = 0; |
|
|
1085 | |
1447 | |
1086 | for (i = asynccnt; i--; ) |
1448 | for (i = asynccnt; i--; ) |
1087 | if (asyncs [i]->sent) |
1449 | if (asyncs [i]->sent) |
1088 | { |
1450 | { |
1089 | asyncs [i]->sent = 0; |
1451 | asyncs [i]->sent = 0; |
… | |
… | |
1093 | #endif |
1455 | #endif |
1094 | } |
1456 | } |
1095 | |
1457 | |
1096 | /*****************************************************************************/ |
1458 | /*****************************************************************************/ |
1097 | |
1459 | |
|
|
1460 | void |
|
|
1461 | ev_feed_signal (int signum) |
|
|
1462 | { |
|
|
1463 | #if EV_MULTIPLICITY |
|
|
1464 | EV_P = signals [signum - 1].loop; |
|
|
1465 | |
|
|
1466 | if (!EV_A) |
|
|
1467 | return; |
|
|
1468 | #endif |
|
|
1469 | |
|
|
1470 | evpipe_init (EV_A); |
|
|
1471 | |
|
|
1472 | signals [signum - 1].pending = 1; |
|
|
1473 | evpipe_write (EV_A_ &sig_pending); |
|
|
1474 | } |
|
|
1475 | |
1098 | static void |
1476 | static void |
1099 | ev_sighandler (int signum) |
1477 | ev_sighandler (int signum) |
1100 | { |
1478 | { |
1101 | #if EV_MULTIPLICITY |
|
|
1102 | struct ev_loop *loop = &default_loop_struct; |
|
|
1103 | #endif |
|
|
1104 | |
|
|
1105 | #if _WIN32 |
1479 | #ifdef _WIN32 |
1106 | signal (signum, ev_sighandler); |
1480 | signal (signum, ev_sighandler); |
1107 | #endif |
1481 | #endif |
1108 | |
1482 | |
1109 | signals [signum - 1].gotsig = 1; |
1483 | ev_feed_signal (signum); |
1110 | evpipe_write (EV_A_ &gotsig); |
|
|
1111 | } |
1484 | } |
1112 | |
1485 | |
1113 | void noinline |
1486 | void noinline |
1114 | ev_feed_signal_event (EV_P_ int signum) |
1487 | ev_feed_signal_event (EV_P_ int signum) |
1115 | { |
1488 | { |
1116 | WL w; |
1489 | WL w; |
1117 | |
1490 | |
|
|
1491 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1492 | return; |
|
|
1493 | |
|
|
1494 | --signum; |
|
|
1495 | |
1118 | #if EV_MULTIPLICITY |
1496 | #if EV_MULTIPLICITY |
1119 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1497 | /* it is permissible to try to feed a signal to the wrong loop */ |
1120 | #endif |
1498 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1121 | |
1499 | |
1122 | --signum; |
1500 | if (expect_false (signals [signum].loop != EV_A)) |
1123 | |
|
|
1124 | if (signum < 0 || signum >= signalmax) |
|
|
1125 | return; |
1501 | return; |
|
|
1502 | #endif |
1126 | |
1503 | |
1127 | signals [signum].gotsig = 0; |
1504 | signals [signum].pending = 0; |
1128 | |
1505 | |
1129 | for (w = signals [signum].head; w; w = w->next) |
1506 | for (w = signals [signum].head; w; w = w->next) |
1130 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1507 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1131 | } |
1508 | } |
1132 | |
1509 | |
|
|
1510 | #if EV_USE_SIGNALFD |
|
|
1511 | static void |
|
|
1512 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1513 | { |
|
|
1514 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1515 | |
|
|
1516 | for (;;) |
|
|
1517 | { |
|
|
1518 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1519 | |
|
|
1520 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1521 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1522 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1523 | |
|
|
1524 | if (res < (ssize_t)sizeof (si)) |
|
|
1525 | break; |
|
|
1526 | } |
|
|
1527 | } |
|
|
1528 | #endif |
|
|
1529 | |
|
|
1530 | #endif |
|
|
1531 | |
1133 | /*****************************************************************************/ |
1532 | /*****************************************************************************/ |
1134 | |
1533 | |
|
|
1534 | #if EV_CHILD_ENABLE |
1135 | static WL childs [EV_PID_HASHSIZE]; |
1535 | static WL childs [EV_PID_HASHSIZE]; |
1136 | |
|
|
1137 | #ifndef _WIN32 |
|
|
1138 | |
1536 | |
1139 | static ev_signal childev; |
1537 | static ev_signal childev; |
1140 | |
1538 | |
1141 | #ifndef WIFCONTINUED |
1539 | #ifndef WIFCONTINUED |
1142 | # define WIFCONTINUED(status) 0 |
1540 | # define WIFCONTINUED(status) 0 |
1143 | #endif |
1541 | #endif |
1144 | |
1542 | |
1145 | void inline_speed |
1543 | /* handle a single child status event */ |
|
|
1544 | inline_speed void |
1146 | child_reap (EV_P_ int chain, int pid, int status) |
1545 | child_reap (EV_P_ int chain, int pid, int status) |
1147 | { |
1546 | { |
1148 | ev_child *w; |
1547 | ev_child *w; |
1149 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1548 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1150 | |
1549 | |
1151 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1550 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1152 | { |
1551 | { |
1153 | if ((w->pid == pid || !w->pid) |
1552 | if ((w->pid == pid || !w->pid) |
1154 | && (!traced || (w->flags & 1))) |
1553 | && (!traced || (w->flags & 1))) |
1155 | { |
1554 | { |
1156 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1555 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1163 | |
1562 | |
1164 | #ifndef WCONTINUED |
1563 | #ifndef WCONTINUED |
1165 | # define WCONTINUED 0 |
1564 | # define WCONTINUED 0 |
1166 | #endif |
1565 | #endif |
1167 | |
1566 | |
|
|
1567 | /* called on sigchld etc., calls waitpid */ |
1168 | static void |
1568 | static void |
1169 | childcb (EV_P_ ev_signal *sw, int revents) |
1569 | childcb (EV_P_ ev_signal *sw, int revents) |
1170 | { |
1570 | { |
1171 | int pid, status; |
1571 | int pid, status; |
1172 | |
1572 | |
… | |
… | |
1180 | /* make sure we are called again until all children have been reaped */ |
1580 | /* make sure we are called again until all children have been reaped */ |
1181 | /* we need to do it this way so that the callback gets called before we continue */ |
1581 | /* we need to do it this way so that the callback gets called before we continue */ |
1182 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1582 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1183 | |
1583 | |
1184 | child_reap (EV_A_ pid, pid, status); |
1584 | child_reap (EV_A_ pid, pid, status); |
1185 | if (EV_PID_HASHSIZE > 1) |
1585 | if ((EV_PID_HASHSIZE) > 1) |
1186 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1586 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1187 | } |
1587 | } |
1188 | |
1588 | |
1189 | #endif |
1589 | #endif |
1190 | |
1590 | |
1191 | /*****************************************************************************/ |
1591 | /*****************************************************************************/ |
1192 | |
1592 | |
|
|
1593 | #if EV_USE_IOCP |
|
|
1594 | # include "ev_iocp.c" |
|
|
1595 | #endif |
1193 | #if EV_USE_PORT |
1596 | #if EV_USE_PORT |
1194 | # include "ev_port.c" |
1597 | # include "ev_port.c" |
1195 | #endif |
1598 | #endif |
1196 | #if EV_USE_KQUEUE |
1599 | #if EV_USE_KQUEUE |
1197 | # include "ev_kqueue.c" |
1600 | # include "ev_kqueue.c" |
… | |
… | |
1253 | /* kqueue is borked on everything but netbsd apparently */ |
1656 | /* kqueue is borked on everything but netbsd apparently */ |
1254 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1657 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1255 | flags &= ~EVBACKEND_KQUEUE; |
1658 | flags &= ~EVBACKEND_KQUEUE; |
1256 | #endif |
1659 | #endif |
1257 | #ifdef __APPLE__ |
1660 | #ifdef __APPLE__ |
1258 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1661 | /* only select works correctly on that "unix-certified" platform */ |
1259 | flags &= ~EVBACKEND_POLL; |
1662 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1663 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1664 | #endif |
|
|
1665 | #ifdef __FreeBSD__ |
|
|
1666 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1260 | #endif |
1667 | #endif |
1261 | |
1668 | |
1262 | return flags; |
1669 | return flags; |
1263 | } |
1670 | } |
1264 | |
1671 | |
… | |
… | |
1266 | ev_embeddable_backends (void) |
1673 | ev_embeddable_backends (void) |
1267 | { |
1674 | { |
1268 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1675 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1269 | |
1676 | |
1270 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1677 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1271 | /* please fix it and tell me how to detect the fix */ |
1678 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1272 | flags &= ~EVBACKEND_EPOLL; |
1679 | flags &= ~EVBACKEND_EPOLL; |
1273 | |
1680 | |
1274 | return flags; |
1681 | return flags; |
1275 | } |
1682 | } |
1276 | |
1683 | |
1277 | unsigned int |
1684 | unsigned int |
1278 | ev_backend (EV_P) |
1685 | ev_backend (EV_P) |
1279 | { |
1686 | { |
1280 | return backend; |
1687 | return backend; |
1281 | } |
1688 | } |
1282 | |
1689 | |
|
|
1690 | #if EV_FEATURE_API |
1283 | unsigned int |
1691 | unsigned int |
1284 | ev_loop_count (EV_P) |
1692 | ev_iteration (EV_P) |
1285 | { |
1693 | { |
1286 | return loop_count; |
1694 | return loop_count; |
1287 | } |
1695 | } |
1288 | |
1696 | |
|
|
1697 | unsigned int |
|
|
1698 | ev_depth (EV_P) |
|
|
1699 | { |
|
|
1700 | return loop_depth; |
|
|
1701 | } |
|
|
1702 | |
1289 | void |
1703 | void |
1290 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1704 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1291 | { |
1705 | { |
1292 | io_blocktime = interval; |
1706 | io_blocktime = interval; |
1293 | } |
1707 | } |
… | |
… | |
1296 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1710 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1297 | { |
1711 | { |
1298 | timeout_blocktime = interval; |
1712 | timeout_blocktime = interval; |
1299 | } |
1713 | } |
1300 | |
1714 | |
|
|
1715 | void |
|
|
1716 | ev_set_userdata (EV_P_ void *data) |
|
|
1717 | { |
|
|
1718 | userdata = data; |
|
|
1719 | } |
|
|
1720 | |
|
|
1721 | void * |
|
|
1722 | ev_userdata (EV_P) |
|
|
1723 | { |
|
|
1724 | return userdata; |
|
|
1725 | } |
|
|
1726 | |
|
|
1727 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1728 | { |
|
|
1729 | invoke_cb = invoke_pending_cb; |
|
|
1730 | } |
|
|
1731 | |
|
|
1732 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1733 | { |
|
|
1734 | release_cb = release; |
|
|
1735 | acquire_cb = acquire; |
|
|
1736 | } |
|
|
1737 | #endif |
|
|
1738 | |
|
|
1739 | /* initialise a loop structure, must be zero-initialised */ |
1301 | static void noinline |
1740 | static void noinline |
1302 | loop_init (EV_P_ unsigned int flags) |
1741 | loop_init (EV_P_ unsigned int flags) |
1303 | { |
1742 | { |
1304 | if (!backend) |
1743 | if (!backend) |
1305 | { |
1744 | { |
|
|
1745 | origflags = flags; |
|
|
1746 | |
|
|
1747 | #if EV_USE_REALTIME |
|
|
1748 | if (!have_realtime) |
|
|
1749 | { |
|
|
1750 | struct timespec ts; |
|
|
1751 | |
|
|
1752 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1753 | have_realtime = 1; |
|
|
1754 | } |
|
|
1755 | #endif |
|
|
1756 | |
1306 | #if EV_USE_MONOTONIC |
1757 | #if EV_USE_MONOTONIC |
|
|
1758 | if (!have_monotonic) |
1307 | { |
1759 | { |
1308 | struct timespec ts; |
1760 | struct timespec ts; |
|
|
1761 | |
1309 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1762 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1310 | have_monotonic = 1; |
1763 | have_monotonic = 1; |
1311 | } |
1764 | } |
1312 | #endif |
|
|
1313 | |
|
|
1314 | ev_rt_now = ev_time (); |
|
|
1315 | mn_now = get_clock (); |
|
|
1316 | now_floor = mn_now; |
|
|
1317 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1318 | |
|
|
1319 | io_blocktime = 0.; |
|
|
1320 | timeout_blocktime = 0.; |
|
|
1321 | backend = 0; |
|
|
1322 | backend_fd = -1; |
|
|
1323 | gotasync = 0; |
|
|
1324 | #if EV_USE_INOTIFY |
|
|
1325 | fs_fd = -2; |
|
|
1326 | #endif |
1765 | #endif |
1327 | |
1766 | |
1328 | /* pid check not overridable via env */ |
1767 | /* pid check not overridable via env */ |
1329 | #ifndef _WIN32 |
1768 | #ifndef _WIN32 |
1330 | if (flags & EVFLAG_FORKCHECK) |
1769 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1334 | if (!(flags & EVFLAG_NOENV) |
1773 | if (!(flags & EVFLAG_NOENV) |
1335 | && !enable_secure () |
1774 | && !enable_secure () |
1336 | && getenv ("LIBEV_FLAGS")) |
1775 | && getenv ("LIBEV_FLAGS")) |
1337 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1776 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1338 | |
1777 | |
1339 | if (!(flags & 0x0000ffffU)) |
1778 | ev_rt_now = ev_time (); |
|
|
1779 | mn_now = get_clock (); |
|
|
1780 | now_floor = mn_now; |
|
|
1781 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1782 | #if EV_FEATURE_API |
|
|
1783 | invoke_cb = ev_invoke_pending; |
|
|
1784 | #endif |
|
|
1785 | |
|
|
1786 | io_blocktime = 0.; |
|
|
1787 | timeout_blocktime = 0.; |
|
|
1788 | backend = 0; |
|
|
1789 | backend_fd = -1; |
|
|
1790 | sig_pending = 0; |
|
|
1791 | #if EV_ASYNC_ENABLE |
|
|
1792 | async_pending = 0; |
|
|
1793 | #endif |
|
|
1794 | pipe_write_skipped = 0; |
|
|
1795 | pipe_write_wanted = 0; |
|
|
1796 | #if EV_USE_INOTIFY |
|
|
1797 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1798 | #endif |
|
|
1799 | #if EV_USE_SIGNALFD |
|
|
1800 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1801 | #endif |
|
|
1802 | |
|
|
1803 | if (!(flags & EVBACKEND_MASK)) |
1340 | flags |= ev_recommended_backends (); |
1804 | flags |= ev_recommended_backends (); |
1341 | |
1805 | |
|
|
1806 | #if EV_USE_IOCP |
|
|
1807 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1808 | #endif |
1342 | #if EV_USE_PORT |
1809 | #if EV_USE_PORT |
1343 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1810 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1344 | #endif |
1811 | #endif |
1345 | #if EV_USE_KQUEUE |
1812 | #if EV_USE_KQUEUE |
1346 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1813 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1353 | #endif |
1820 | #endif |
1354 | #if EV_USE_SELECT |
1821 | #if EV_USE_SELECT |
1355 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1822 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1356 | #endif |
1823 | #endif |
1357 | |
1824 | |
|
|
1825 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1826 | |
|
|
1827 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1358 | ev_init (&pipeev, pipecb); |
1828 | ev_init (&pipe_w, pipecb); |
1359 | ev_set_priority (&pipeev, EV_MAXPRI); |
1829 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1830 | #endif |
1360 | } |
1831 | } |
1361 | } |
1832 | } |
1362 | |
1833 | |
1363 | static void noinline |
1834 | /* free up a loop structure */ |
|
|
1835 | void |
1364 | loop_destroy (EV_P) |
1836 | ev_loop_destroy (EV_P) |
1365 | { |
1837 | { |
1366 | int i; |
1838 | int i; |
1367 | |
1839 | |
|
|
1840 | #if EV_MULTIPLICITY |
|
|
1841 | /* mimic free (0) */ |
|
|
1842 | if (!EV_A) |
|
|
1843 | return; |
|
|
1844 | #endif |
|
|
1845 | |
|
|
1846 | #if EV_CLEANUP_ENABLE |
|
|
1847 | /* queue cleanup watchers (and execute them) */ |
|
|
1848 | if (expect_false (cleanupcnt)) |
|
|
1849 | { |
|
|
1850 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1851 | EV_INVOKE_PENDING; |
|
|
1852 | } |
|
|
1853 | #endif |
|
|
1854 | |
|
|
1855 | #if EV_CHILD_ENABLE |
|
|
1856 | if (ev_is_active (&childev)) |
|
|
1857 | { |
|
|
1858 | ev_ref (EV_A); /* child watcher */ |
|
|
1859 | ev_signal_stop (EV_A_ &childev); |
|
|
1860 | } |
|
|
1861 | #endif |
|
|
1862 | |
1368 | if (ev_is_active (&pipeev)) |
1863 | if (ev_is_active (&pipe_w)) |
1369 | { |
1864 | { |
1370 | ev_ref (EV_A); /* signal watcher */ |
1865 | /*ev_ref (EV_A);*/ |
1371 | ev_io_stop (EV_A_ &pipeev); |
1866 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1372 | |
1867 | |
1373 | #if EV_USE_EVENTFD |
1868 | #if EV_USE_EVENTFD |
1374 | if (evfd >= 0) |
1869 | if (evfd >= 0) |
1375 | close (evfd); |
1870 | close (evfd); |
1376 | #endif |
1871 | #endif |
1377 | |
1872 | |
1378 | if (evpipe [0] >= 0) |
1873 | if (evpipe [0] >= 0) |
1379 | { |
1874 | { |
1380 | close (evpipe [0]); |
1875 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1381 | close (evpipe [1]); |
1876 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1382 | } |
1877 | } |
1383 | } |
1878 | } |
|
|
1879 | |
|
|
1880 | #if EV_USE_SIGNALFD |
|
|
1881 | if (ev_is_active (&sigfd_w)) |
|
|
1882 | close (sigfd); |
|
|
1883 | #endif |
1384 | |
1884 | |
1385 | #if EV_USE_INOTIFY |
1885 | #if EV_USE_INOTIFY |
1386 | if (fs_fd >= 0) |
1886 | if (fs_fd >= 0) |
1387 | close (fs_fd); |
1887 | close (fs_fd); |
1388 | #endif |
1888 | #endif |
1389 | |
1889 | |
1390 | if (backend_fd >= 0) |
1890 | if (backend_fd >= 0) |
1391 | close (backend_fd); |
1891 | close (backend_fd); |
1392 | |
1892 | |
|
|
1893 | #if EV_USE_IOCP |
|
|
1894 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1895 | #endif |
1393 | #if EV_USE_PORT |
1896 | #if EV_USE_PORT |
1394 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1897 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1395 | #endif |
1898 | #endif |
1396 | #if EV_USE_KQUEUE |
1899 | #if EV_USE_KQUEUE |
1397 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1900 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1412 | #if EV_IDLE_ENABLE |
1915 | #if EV_IDLE_ENABLE |
1413 | array_free (idle, [i]); |
1916 | array_free (idle, [i]); |
1414 | #endif |
1917 | #endif |
1415 | } |
1918 | } |
1416 | |
1919 | |
1417 | ev_free (anfds); anfdmax = 0; |
1920 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1418 | |
1921 | |
1419 | /* have to use the microsoft-never-gets-it-right macro */ |
1922 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1923 | array_free (rfeed, EMPTY); |
1420 | array_free (fdchange, EMPTY); |
1924 | array_free (fdchange, EMPTY); |
1421 | array_free (timer, EMPTY); |
1925 | array_free (timer, EMPTY); |
1422 | #if EV_PERIODIC_ENABLE |
1926 | #if EV_PERIODIC_ENABLE |
1423 | array_free (periodic, EMPTY); |
1927 | array_free (periodic, EMPTY); |
1424 | #endif |
1928 | #endif |
1425 | #if EV_FORK_ENABLE |
1929 | #if EV_FORK_ENABLE |
1426 | array_free (fork, EMPTY); |
1930 | array_free (fork, EMPTY); |
1427 | #endif |
1931 | #endif |
|
|
1932 | #if EV_CLEANUP_ENABLE |
|
|
1933 | array_free (cleanup, EMPTY); |
|
|
1934 | #endif |
1428 | array_free (prepare, EMPTY); |
1935 | array_free (prepare, EMPTY); |
1429 | array_free (check, EMPTY); |
1936 | array_free (check, EMPTY); |
1430 | #if EV_ASYNC_ENABLE |
1937 | #if EV_ASYNC_ENABLE |
1431 | array_free (async, EMPTY); |
1938 | array_free (async, EMPTY); |
1432 | #endif |
1939 | #endif |
1433 | |
1940 | |
1434 | backend = 0; |
1941 | backend = 0; |
|
|
1942 | |
|
|
1943 | #if EV_MULTIPLICITY |
|
|
1944 | if (ev_is_default_loop (EV_A)) |
|
|
1945 | #endif |
|
|
1946 | ev_default_loop_ptr = 0; |
|
|
1947 | #if EV_MULTIPLICITY |
|
|
1948 | else |
|
|
1949 | ev_free (EV_A); |
|
|
1950 | #endif |
1435 | } |
1951 | } |
1436 | |
1952 | |
1437 | #if EV_USE_INOTIFY |
1953 | #if EV_USE_INOTIFY |
1438 | void inline_size infy_fork (EV_P); |
1954 | inline_size void infy_fork (EV_P); |
1439 | #endif |
1955 | #endif |
1440 | |
1956 | |
1441 | void inline_size |
1957 | inline_size void |
1442 | loop_fork (EV_P) |
1958 | loop_fork (EV_P) |
1443 | { |
1959 | { |
1444 | #if EV_USE_PORT |
1960 | #if EV_USE_PORT |
1445 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1961 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1446 | #endif |
1962 | #endif |
… | |
… | |
1452 | #endif |
1968 | #endif |
1453 | #if EV_USE_INOTIFY |
1969 | #if EV_USE_INOTIFY |
1454 | infy_fork (EV_A); |
1970 | infy_fork (EV_A); |
1455 | #endif |
1971 | #endif |
1456 | |
1972 | |
1457 | if (ev_is_active (&pipeev)) |
1973 | if (ev_is_active (&pipe_w)) |
1458 | { |
1974 | { |
1459 | /* this "locks" the handlers against writing to the pipe */ |
1975 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1460 | /* while we modify the fd vars */ |
|
|
1461 | gotsig = 1; |
|
|
1462 | #if EV_ASYNC_ENABLE |
|
|
1463 | gotasync = 1; |
|
|
1464 | #endif |
|
|
1465 | |
1976 | |
1466 | ev_ref (EV_A); |
1977 | ev_ref (EV_A); |
1467 | ev_io_stop (EV_A_ &pipeev); |
1978 | ev_io_stop (EV_A_ &pipe_w); |
1468 | |
1979 | |
1469 | #if EV_USE_EVENTFD |
1980 | #if EV_USE_EVENTFD |
1470 | if (evfd >= 0) |
1981 | if (evfd >= 0) |
1471 | close (evfd); |
1982 | close (evfd); |
1472 | #endif |
1983 | #endif |
1473 | |
1984 | |
1474 | if (evpipe [0] >= 0) |
1985 | if (evpipe [0] >= 0) |
1475 | { |
1986 | { |
1476 | close (evpipe [0]); |
1987 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1477 | close (evpipe [1]); |
1988 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1478 | } |
1989 | } |
1479 | |
1990 | |
|
|
1991 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1480 | evpipe_init (EV_A); |
1992 | evpipe_init (EV_A); |
1481 | /* now iterate over everything, in case we missed something */ |
1993 | /* now iterate over everything, in case we missed something */ |
1482 | pipecb (EV_A_ &pipeev, EV_READ); |
1994 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1995 | #endif |
1483 | } |
1996 | } |
1484 | |
1997 | |
1485 | postfork = 0; |
1998 | postfork = 0; |
1486 | } |
1999 | } |
|
|
2000 | |
|
|
2001 | #if EV_MULTIPLICITY |
|
|
2002 | |
|
|
2003 | struct ev_loop * |
|
|
2004 | ev_loop_new (unsigned int flags) |
|
|
2005 | { |
|
|
2006 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
2007 | |
|
|
2008 | memset (EV_A, 0, sizeof (struct ev_loop)); |
|
|
2009 | loop_init (EV_A_ flags); |
|
|
2010 | |
|
|
2011 | if (ev_backend (EV_A)) |
|
|
2012 | return EV_A; |
|
|
2013 | |
|
|
2014 | ev_free (EV_A); |
|
|
2015 | return 0; |
|
|
2016 | } |
|
|
2017 | |
|
|
2018 | #endif /* multiplicity */ |
|
|
2019 | |
|
|
2020 | #if EV_VERIFY |
|
|
2021 | static void noinline |
|
|
2022 | verify_watcher (EV_P_ W w) |
|
|
2023 | { |
|
|
2024 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
2025 | |
|
|
2026 | if (w->pending) |
|
|
2027 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2028 | } |
|
|
2029 | |
|
|
2030 | static void noinline |
|
|
2031 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2032 | { |
|
|
2033 | int i; |
|
|
2034 | |
|
|
2035 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2036 | { |
|
|
2037 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2038 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2039 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2040 | |
|
|
2041 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2042 | } |
|
|
2043 | } |
|
|
2044 | |
|
|
2045 | static void noinline |
|
|
2046 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2047 | { |
|
|
2048 | while (cnt--) |
|
|
2049 | { |
|
|
2050 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2051 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2052 | } |
|
|
2053 | } |
|
|
2054 | #endif |
|
|
2055 | |
|
|
2056 | #if EV_FEATURE_API |
|
|
2057 | void |
|
|
2058 | ev_verify (EV_P) |
|
|
2059 | { |
|
|
2060 | #if EV_VERIFY |
|
|
2061 | int i; |
|
|
2062 | WL w; |
|
|
2063 | |
|
|
2064 | assert (activecnt >= -1); |
|
|
2065 | |
|
|
2066 | assert (fdchangemax >= fdchangecnt); |
|
|
2067 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2068 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2069 | |
|
|
2070 | assert (anfdmax >= 0); |
|
|
2071 | for (i = 0; i < anfdmax; ++i) |
|
|
2072 | for (w = anfds [i].head; w; w = w->next) |
|
|
2073 | { |
|
|
2074 | verify_watcher (EV_A_ (W)w); |
|
|
2075 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2076 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2077 | } |
|
|
2078 | |
|
|
2079 | assert (timermax >= timercnt); |
|
|
2080 | verify_heap (EV_A_ timers, timercnt); |
|
|
2081 | |
|
|
2082 | #if EV_PERIODIC_ENABLE |
|
|
2083 | assert (periodicmax >= periodiccnt); |
|
|
2084 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2085 | #endif |
|
|
2086 | |
|
|
2087 | for (i = NUMPRI; i--; ) |
|
|
2088 | { |
|
|
2089 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2090 | #if EV_IDLE_ENABLE |
|
|
2091 | assert (idleall >= 0); |
|
|
2092 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2093 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2094 | #endif |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | #if EV_FORK_ENABLE |
|
|
2098 | assert (forkmax >= forkcnt); |
|
|
2099 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2100 | #endif |
|
|
2101 | |
|
|
2102 | #if EV_CLEANUP_ENABLE |
|
|
2103 | assert (cleanupmax >= cleanupcnt); |
|
|
2104 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2105 | #endif |
|
|
2106 | |
|
|
2107 | #if EV_ASYNC_ENABLE |
|
|
2108 | assert (asyncmax >= asynccnt); |
|
|
2109 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2110 | #endif |
|
|
2111 | |
|
|
2112 | #if EV_PREPARE_ENABLE |
|
|
2113 | assert (preparemax >= preparecnt); |
|
|
2114 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2115 | #endif |
|
|
2116 | |
|
|
2117 | #if EV_CHECK_ENABLE |
|
|
2118 | assert (checkmax >= checkcnt); |
|
|
2119 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2120 | #endif |
|
|
2121 | |
|
|
2122 | # if 0 |
|
|
2123 | #if EV_CHILD_ENABLE |
|
|
2124 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2125 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2126 | #endif |
|
|
2127 | # endif |
|
|
2128 | #endif |
|
|
2129 | } |
|
|
2130 | #endif |
1487 | |
2131 | |
1488 | #if EV_MULTIPLICITY |
2132 | #if EV_MULTIPLICITY |
1489 | struct ev_loop * |
2133 | struct ev_loop * |
1490 | ev_loop_new (unsigned int flags) |
|
|
1491 | { |
|
|
1492 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1493 | |
|
|
1494 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1495 | |
|
|
1496 | loop_init (EV_A_ flags); |
|
|
1497 | |
|
|
1498 | if (ev_backend (EV_A)) |
|
|
1499 | return loop; |
|
|
1500 | |
|
|
1501 | return 0; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | void |
|
|
1505 | ev_loop_destroy (EV_P) |
|
|
1506 | { |
|
|
1507 | loop_destroy (EV_A); |
|
|
1508 | ev_free (loop); |
|
|
1509 | } |
|
|
1510 | |
|
|
1511 | void |
|
|
1512 | ev_loop_fork (EV_P) |
|
|
1513 | { |
|
|
1514 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | #if EV_VERIFY |
|
|
1518 | static void |
|
|
1519 | array_check (W **ws, int cnt) |
|
|
1520 | { |
|
|
1521 | while (cnt--) |
|
|
1522 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | static void |
|
|
1526 | ev_loop_verify (EV_P) |
|
|
1527 | { |
|
|
1528 | int i; |
|
|
1529 | |
|
|
1530 | checkheap (timers, timercnt); |
|
|
1531 | #if EV_PERIODIC_ENABLE |
|
|
1532 | checkheap (periodics, periodiccnt); |
|
|
1533 | #endif |
|
|
1534 | |
|
|
1535 | #if EV_IDLE_ENABLE |
|
|
1536 | for (i = NUMPRI; i--; ) |
|
|
1537 | array_check ((W **)idles [i], idlecnt [i]); |
|
|
1538 | #endif |
|
|
1539 | #if EV_FORK_ENABLE |
|
|
1540 | array_check ((W **)forks, forkcnt); |
|
|
1541 | #endif |
|
|
1542 | array_check ((W **)prepares, preparecnt); |
|
|
1543 | array_check ((W **)checks, checkcnt); |
|
|
1544 | #if EV_ASYNC_ENABLE |
|
|
1545 | array_check ((W **)asyncs, asynccnt); |
|
|
1546 | #endif |
|
|
1547 | } |
|
|
1548 | #endif |
|
|
1549 | |
|
|
1550 | #endif |
|
|
1551 | |
|
|
1552 | #if EV_MULTIPLICITY |
|
|
1553 | struct ev_loop * |
|
|
1554 | ev_default_loop_init (unsigned int flags) |
|
|
1555 | #else |
2134 | #else |
1556 | int |
2135 | int |
|
|
2136 | #endif |
1557 | ev_default_loop (unsigned int flags) |
2137 | ev_default_loop (unsigned int flags) |
1558 | #endif |
|
|
1559 | { |
2138 | { |
1560 | if (!ev_default_loop_ptr) |
2139 | if (!ev_default_loop_ptr) |
1561 | { |
2140 | { |
1562 | #if EV_MULTIPLICITY |
2141 | #if EV_MULTIPLICITY |
1563 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2142 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1564 | #else |
2143 | #else |
1565 | ev_default_loop_ptr = 1; |
2144 | ev_default_loop_ptr = 1; |
1566 | #endif |
2145 | #endif |
1567 | |
2146 | |
1568 | loop_init (EV_A_ flags); |
2147 | loop_init (EV_A_ flags); |
1569 | |
2148 | |
1570 | if (ev_backend (EV_A)) |
2149 | if (ev_backend (EV_A)) |
1571 | { |
2150 | { |
1572 | #ifndef _WIN32 |
2151 | #if EV_CHILD_ENABLE |
1573 | ev_signal_init (&childev, childcb, SIGCHLD); |
2152 | ev_signal_init (&childev, childcb, SIGCHLD); |
1574 | ev_set_priority (&childev, EV_MAXPRI); |
2153 | ev_set_priority (&childev, EV_MAXPRI); |
1575 | ev_signal_start (EV_A_ &childev); |
2154 | ev_signal_start (EV_A_ &childev); |
1576 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2155 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1577 | #endif |
2156 | #endif |
… | |
… | |
1582 | |
2161 | |
1583 | return ev_default_loop_ptr; |
2162 | return ev_default_loop_ptr; |
1584 | } |
2163 | } |
1585 | |
2164 | |
1586 | void |
2165 | void |
1587 | ev_default_destroy (void) |
2166 | ev_loop_fork (EV_P) |
1588 | { |
2167 | { |
1589 | #if EV_MULTIPLICITY |
|
|
1590 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1591 | #endif |
|
|
1592 | |
|
|
1593 | #ifndef _WIN32 |
|
|
1594 | ev_ref (EV_A); /* child watcher */ |
|
|
1595 | ev_signal_stop (EV_A_ &childev); |
|
|
1596 | #endif |
|
|
1597 | |
|
|
1598 | loop_destroy (EV_A); |
|
|
1599 | } |
|
|
1600 | |
|
|
1601 | void |
|
|
1602 | ev_default_fork (void) |
|
|
1603 | { |
|
|
1604 | #if EV_MULTIPLICITY |
|
|
1605 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1606 | #endif |
|
|
1607 | |
|
|
1608 | if (backend) |
|
|
1609 | postfork = 1; /* must be in line with ev_loop_fork */ |
2168 | postfork = 1; /* must be in line with ev_default_fork */ |
1610 | } |
2169 | } |
1611 | |
2170 | |
1612 | /*****************************************************************************/ |
2171 | /*****************************************************************************/ |
1613 | |
2172 | |
1614 | void |
2173 | void |
1615 | ev_invoke (EV_P_ void *w, int revents) |
2174 | ev_invoke (EV_P_ void *w, int revents) |
1616 | { |
2175 | { |
1617 | EV_CB_INVOKE ((W)w, revents); |
2176 | EV_CB_INVOKE ((W)w, revents); |
1618 | } |
2177 | } |
1619 | |
2178 | |
1620 | void inline_speed |
2179 | unsigned int |
1621 | call_pending (EV_P) |
2180 | ev_pending_count (EV_P) |
1622 | { |
2181 | { |
1623 | int pri; |
2182 | int pri; |
|
|
2183 | unsigned int count = 0; |
1624 | |
2184 | |
1625 | EV_FREQUENT_CHECK; |
2185 | for (pri = NUMPRI; pri--; ) |
|
|
2186 | count += pendingcnt [pri]; |
|
|
2187 | |
|
|
2188 | return count; |
|
|
2189 | } |
|
|
2190 | |
|
|
2191 | void noinline |
|
|
2192 | ev_invoke_pending (EV_P) |
|
|
2193 | { |
|
|
2194 | int pri; |
1626 | |
2195 | |
1627 | for (pri = NUMPRI; pri--; ) |
2196 | for (pri = NUMPRI; pri--; ) |
1628 | while (pendingcnt [pri]) |
2197 | while (pendingcnt [pri]) |
1629 | { |
2198 | { |
1630 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2199 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1631 | |
2200 | |
1632 | if (expect_true (p->w)) |
|
|
1633 | { |
|
|
1634 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1635 | |
|
|
1636 | p->w->pending = 0; |
2201 | p->w->pending = 0; |
1637 | EV_CB_INVOKE (p->w, p->events); |
2202 | EV_CB_INVOKE (p->w, p->events); |
1638 | } |
2203 | EV_FREQUENT_CHECK; |
1639 | } |
2204 | } |
1640 | |
|
|
1641 | EV_FREQUENT_CHECK; |
|
|
1642 | } |
2205 | } |
1643 | |
2206 | |
1644 | #if EV_IDLE_ENABLE |
2207 | #if EV_IDLE_ENABLE |
1645 | void inline_size |
2208 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2209 | /* only when higher priorities are idle" logic */ |
|
|
2210 | inline_size void |
1646 | idle_reify (EV_P) |
2211 | idle_reify (EV_P) |
1647 | { |
2212 | { |
1648 | if (expect_false (idleall)) |
2213 | if (expect_false (idleall)) |
1649 | { |
2214 | { |
1650 | int pri; |
2215 | int pri; |
… | |
… | |
1662 | } |
2227 | } |
1663 | } |
2228 | } |
1664 | } |
2229 | } |
1665 | #endif |
2230 | #endif |
1666 | |
2231 | |
1667 | void inline_size |
2232 | /* make timers pending */ |
|
|
2233 | inline_size void |
1668 | timers_reify (EV_P) |
2234 | timers_reify (EV_P) |
1669 | { |
2235 | { |
1670 | EV_FREQUENT_CHECK; |
2236 | EV_FREQUENT_CHECK; |
1671 | |
2237 | |
1672 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2238 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1673 | { |
2239 | { |
1674 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2240 | do |
1675 | |
|
|
1676 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1677 | |
|
|
1678 | /* first reschedule or stop timer */ |
|
|
1679 | if (w->repeat) |
|
|
1680 | { |
2241 | { |
|
|
2242 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2243 | |
|
|
2244 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2245 | |
|
|
2246 | /* first reschedule or stop timer */ |
|
|
2247 | if (w->repeat) |
|
|
2248 | { |
1681 | ev_at (w) += w->repeat; |
2249 | ev_at (w) += w->repeat; |
1682 | if (ev_at (w) < mn_now) |
2250 | if (ev_at (w) < mn_now) |
1683 | ev_at (w) = mn_now; |
2251 | ev_at (w) = mn_now; |
1684 | |
2252 | |
1685 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2253 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1686 | |
2254 | |
1687 | ANHE_at_cache (timers [HEAP0]); |
2255 | ANHE_at_cache (timers [HEAP0]); |
1688 | downheap (timers, timercnt, HEAP0); |
2256 | downheap (timers, timercnt, HEAP0); |
|
|
2257 | } |
|
|
2258 | else |
|
|
2259 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2260 | |
|
|
2261 | EV_FREQUENT_CHECK; |
|
|
2262 | feed_reverse (EV_A_ (W)w); |
1689 | } |
2263 | } |
1690 | else |
2264 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1691 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1692 | |
2265 | |
1693 | EV_FREQUENT_CHECK; |
2266 | feed_reverse_done (EV_A_ EV_TIMER); |
1694 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1695 | } |
2267 | } |
1696 | } |
2268 | } |
1697 | |
2269 | |
1698 | #if EV_PERIODIC_ENABLE |
2270 | #if EV_PERIODIC_ENABLE |
1699 | void inline_size |
2271 | |
|
|
2272 | static void noinline |
|
|
2273 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2274 | { |
|
|
2275 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2276 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2277 | |
|
|
2278 | /* the above almost always errs on the low side */ |
|
|
2279 | while (at <= ev_rt_now) |
|
|
2280 | { |
|
|
2281 | ev_tstamp nat = at + w->interval; |
|
|
2282 | |
|
|
2283 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2284 | if (expect_false (nat == at)) |
|
|
2285 | { |
|
|
2286 | at = ev_rt_now; |
|
|
2287 | break; |
|
|
2288 | } |
|
|
2289 | |
|
|
2290 | at = nat; |
|
|
2291 | } |
|
|
2292 | |
|
|
2293 | ev_at (w) = at; |
|
|
2294 | } |
|
|
2295 | |
|
|
2296 | /* make periodics pending */ |
|
|
2297 | inline_size void |
1700 | periodics_reify (EV_P) |
2298 | periodics_reify (EV_P) |
1701 | { |
2299 | { |
1702 | EV_FREQUENT_CHECK; |
2300 | EV_FREQUENT_CHECK; |
|
|
2301 | |
1703 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2302 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1704 | { |
2303 | { |
1705 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2304 | int feed_count = 0; |
1706 | |
2305 | |
1707 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2306 | do |
1708 | |
|
|
1709 | /* first reschedule or stop timer */ |
|
|
1710 | if (w->reschedule_cb) |
|
|
1711 | { |
2307 | { |
|
|
2308 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2309 | |
|
|
2310 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2311 | |
|
|
2312 | /* first reschedule or stop timer */ |
|
|
2313 | if (w->reschedule_cb) |
|
|
2314 | { |
1712 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2315 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1713 | |
2316 | |
1714 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2317 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1715 | |
2318 | |
1716 | ANHE_at_cache (periodics [HEAP0]); |
2319 | ANHE_at_cache (periodics [HEAP0]); |
1717 | downheap (periodics, periodiccnt, HEAP0); |
2320 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2321 | } |
|
|
2322 | else if (w->interval) |
|
|
2323 | { |
|
|
2324 | periodic_recalc (EV_A_ w); |
|
|
2325 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2326 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2327 | } |
|
|
2328 | else |
|
|
2329 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2330 | |
1718 | EV_FREQUENT_CHECK; |
2331 | EV_FREQUENT_CHECK; |
|
|
2332 | feed_reverse (EV_A_ (W)w); |
1719 | } |
2333 | } |
1720 | else if (w->interval) |
2334 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1721 | { |
|
|
1722 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1723 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1724 | /* this might happen because of floating point inexactness */ |
|
|
1725 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1726 | { |
|
|
1727 | ev_at (w) += w->interval; |
|
|
1728 | |
2335 | |
1729 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1730 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1731 | /* has effectively asked to get triggered more often than possible */ |
|
|
1732 | if (ev_at (w) < ev_rt_now) |
|
|
1733 | ev_at (w) = ev_rt_now; |
|
|
1734 | } |
|
|
1735 | |
|
|
1736 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1737 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1738 | } |
|
|
1739 | else |
|
|
1740 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1741 | |
|
|
1742 | EV_FREQUENT_CHECK; |
|
|
1743 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2336 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1744 | } |
2337 | } |
1745 | } |
2338 | } |
1746 | |
2339 | |
|
|
2340 | /* simply recalculate all periodics */ |
|
|
2341 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1747 | static void noinline |
2342 | static void noinline |
1748 | periodics_reschedule (EV_P) |
2343 | periodics_reschedule (EV_P) |
1749 | { |
2344 | { |
1750 | int i; |
2345 | int i; |
1751 | |
2346 | |
… | |
… | |
1755 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2350 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1756 | |
2351 | |
1757 | if (w->reschedule_cb) |
2352 | if (w->reschedule_cb) |
1758 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2353 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1759 | else if (w->interval) |
2354 | else if (w->interval) |
1760 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2355 | periodic_recalc (EV_A_ w); |
1761 | |
2356 | |
1762 | ANHE_at_cache (periodics [i]); |
2357 | ANHE_at_cache (periodics [i]); |
1763 | } |
2358 | } |
1764 | |
2359 | |
1765 | reheap (periodics, periodiccnt); |
2360 | reheap (periodics, periodiccnt); |
1766 | } |
2361 | } |
1767 | #endif |
2362 | #endif |
1768 | |
2363 | |
1769 | void inline_speed |
2364 | /* adjust all timers by a given offset */ |
|
|
2365 | static void noinline |
|
|
2366 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2367 | { |
|
|
2368 | int i; |
|
|
2369 | |
|
|
2370 | for (i = 0; i < timercnt; ++i) |
|
|
2371 | { |
|
|
2372 | ANHE *he = timers + i + HEAP0; |
|
|
2373 | ANHE_w (*he)->at += adjust; |
|
|
2374 | ANHE_at_cache (*he); |
|
|
2375 | } |
|
|
2376 | } |
|
|
2377 | |
|
|
2378 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2379 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2380 | inline_speed void |
1770 | time_update (EV_P_ ev_tstamp max_block) |
2381 | time_update (EV_P_ ev_tstamp max_block) |
1771 | { |
2382 | { |
1772 | int i; |
|
|
1773 | |
|
|
1774 | #if EV_USE_MONOTONIC |
2383 | #if EV_USE_MONOTONIC |
1775 | if (expect_true (have_monotonic)) |
2384 | if (expect_true (have_monotonic)) |
1776 | { |
2385 | { |
|
|
2386 | int i; |
1777 | ev_tstamp odiff = rtmn_diff; |
2387 | ev_tstamp odiff = rtmn_diff; |
1778 | |
2388 | |
1779 | mn_now = get_clock (); |
2389 | mn_now = get_clock (); |
1780 | |
2390 | |
1781 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2391 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1797 | * doesn't hurt either as we only do this on time-jumps or |
2407 | * doesn't hurt either as we only do this on time-jumps or |
1798 | * in the unlikely event of having been preempted here. |
2408 | * in the unlikely event of having been preempted here. |
1799 | */ |
2409 | */ |
1800 | for (i = 4; --i; ) |
2410 | for (i = 4; --i; ) |
1801 | { |
2411 | { |
|
|
2412 | ev_tstamp diff; |
1802 | rtmn_diff = ev_rt_now - mn_now; |
2413 | rtmn_diff = ev_rt_now - mn_now; |
1803 | |
2414 | |
|
|
2415 | diff = odiff - rtmn_diff; |
|
|
2416 | |
1804 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2417 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1805 | return; /* all is well */ |
2418 | return; /* all is well */ |
1806 | |
2419 | |
1807 | ev_rt_now = ev_time (); |
2420 | ev_rt_now = ev_time (); |
1808 | mn_now = get_clock (); |
2421 | mn_now = get_clock (); |
1809 | now_floor = mn_now; |
2422 | now_floor = mn_now; |
1810 | } |
2423 | } |
1811 | |
2424 | |
|
|
2425 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2426 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1812 | # if EV_PERIODIC_ENABLE |
2427 | # if EV_PERIODIC_ENABLE |
1813 | periodics_reschedule (EV_A); |
2428 | periodics_reschedule (EV_A); |
1814 | # endif |
2429 | # endif |
1815 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1816 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1817 | } |
2430 | } |
1818 | else |
2431 | else |
1819 | #endif |
2432 | #endif |
1820 | { |
2433 | { |
1821 | ev_rt_now = ev_time (); |
2434 | ev_rt_now = ev_time (); |
1822 | |
2435 | |
1823 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2436 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1824 | { |
2437 | { |
|
|
2438 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2439 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1825 | #if EV_PERIODIC_ENABLE |
2440 | #if EV_PERIODIC_ENABLE |
1826 | periodics_reschedule (EV_A); |
2441 | periodics_reschedule (EV_A); |
1827 | #endif |
2442 | #endif |
1828 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1829 | for (i = 0; i < timercnt; ++i) |
|
|
1830 | { |
|
|
1831 | ANHE *he = timers + i + HEAP0; |
|
|
1832 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1833 | ANHE_at_cache (*he); |
|
|
1834 | } |
|
|
1835 | } |
2443 | } |
1836 | |
2444 | |
1837 | mn_now = ev_rt_now; |
2445 | mn_now = ev_rt_now; |
1838 | } |
2446 | } |
1839 | } |
2447 | } |
1840 | |
2448 | |
1841 | void |
2449 | void |
1842 | ev_ref (EV_P) |
|
|
1843 | { |
|
|
1844 | ++activecnt; |
|
|
1845 | } |
|
|
1846 | |
|
|
1847 | void |
|
|
1848 | ev_unref (EV_P) |
|
|
1849 | { |
|
|
1850 | --activecnt; |
|
|
1851 | } |
|
|
1852 | |
|
|
1853 | static int loop_done; |
|
|
1854 | |
|
|
1855 | void |
|
|
1856 | ev_loop (EV_P_ int flags) |
2450 | ev_run (EV_P_ int flags) |
1857 | { |
2451 | { |
|
|
2452 | #if EV_FEATURE_API |
|
|
2453 | ++loop_depth; |
|
|
2454 | #endif |
|
|
2455 | |
|
|
2456 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2457 | |
1858 | loop_done = EVUNLOOP_CANCEL; |
2458 | loop_done = EVBREAK_CANCEL; |
1859 | |
2459 | |
1860 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2460 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1861 | |
2461 | |
1862 | do |
2462 | do |
1863 | { |
2463 | { |
|
|
2464 | #if EV_VERIFY >= 2 |
|
|
2465 | ev_verify (EV_A); |
|
|
2466 | #endif |
|
|
2467 | |
1864 | #ifndef _WIN32 |
2468 | #ifndef _WIN32 |
1865 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2469 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1866 | if (expect_false (getpid () != curpid)) |
2470 | if (expect_false (getpid () != curpid)) |
1867 | { |
2471 | { |
1868 | curpid = getpid (); |
2472 | curpid = getpid (); |
… | |
… | |
1874 | /* we might have forked, so queue fork handlers */ |
2478 | /* we might have forked, so queue fork handlers */ |
1875 | if (expect_false (postfork)) |
2479 | if (expect_false (postfork)) |
1876 | if (forkcnt) |
2480 | if (forkcnt) |
1877 | { |
2481 | { |
1878 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2482 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1879 | call_pending (EV_A); |
2483 | EV_INVOKE_PENDING; |
1880 | } |
2484 | } |
1881 | #endif |
2485 | #endif |
1882 | |
2486 | |
|
|
2487 | #if EV_PREPARE_ENABLE |
1883 | /* queue prepare watchers (and execute them) */ |
2488 | /* queue prepare watchers (and execute them) */ |
1884 | if (expect_false (preparecnt)) |
2489 | if (expect_false (preparecnt)) |
1885 | { |
2490 | { |
1886 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2491 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1887 | call_pending (EV_A); |
2492 | EV_INVOKE_PENDING; |
1888 | } |
2493 | } |
|
|
2494 | #endif |
1889 | |
2495 | |
1890 | if (expect_false (!activecnt)) |
2496 | if (expect_false (loop_done)) |
1891 | break; |
2497 | break; |
1892 | |
2498 | |
1893 | /* we might have forked, so reify kernel state if necessary */ |
2499 | /* we might have forked, so reify kernel state if necessary */ |
1894 | if (expect_false (postfork)) |
2500 | if (expect_false (postfork)) |
1895 | loop_fork (EV_A); |
2501 | loop_fork (EV_A); |
… | |
… | |
1900 | /* calculate blocking time */ |
2506 | /* calculate blocking time */ |
1901 | { |
2507 | { |
1902 | ev_tstamp waittime = 0.; |
2508 | ev_tstamp waittime = 0.; |
1903 | ev_tstamp sleeptime = 0.; |
2509 | ev_tstamp sleeptime = 0.; |
1904 | |
2510 | |
|
|
2511 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2512 | ev_tstamp prev_mn_now = mn_now; |
|
|
2513 | |
|
|
2514 | /* update time to cancel out callback processing overhead */ |
|
|
2515 | time_update (EV_A_ 1e100); |
|
|
2516 | |
|
|
2517 | /* from now on, we want a pipe-wake-up */ |
|
|
2518 | pipe_write_wanted = 1; |
|
|
2519 | |
1905 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2520 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1906 | { |
2521 | { |
1907 | /* update time to cancel out callback processing overhead */ |
|
|
1908 | time_update (EV_A_ 1e100); |
|
|
1909 | |
|
|
1910 | waittime = MAX_BLOCKTIME; |
2522 | waittime = MAX_BLOCKTIME; |
1911 | |
2523 | |
1912 | if (timercnt) |
2524 | if (timercnt) |
1913 | { |
2525 | { |
1914 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2526 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1915 | if (waittime > to) waittime = to; |
2527 | if (waittime > to) waittime = to; |
1916 | } |
2528 | } |
1917 | |
2529 | |
1918 | #if EV_PERIODIC_ENABLE |
2530 | #if EV_PERIODIC_ENABLE |
1919 | if (periodiccnt) |
2531 | if (periodiccnt) |
1920 | { |
2532 | { |
1921 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2533 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1922 | if (waittime > to) waittime = to; |
2534 | if (waittime > to) waittime = to; |
1923 | } |
2535 | } |
1924 | #endif |
2536 | #endif |
1925 | |
2537 | |
|
|
2538 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1926 | if (expect_false (waittime < timeout_blocktime)) |
2539 | if (expect_false (waittime < timeout_blocktime)) |
1927 | waittime = timeout_blocktime; |
2540 | waittime = timeout_blocktime; |
1928 | |
2541 | |
1929 | sleeptime = waittime - backend_fudge; |
2542 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
2543 | /* to pass a minimum nonzero value to the backend */ |
|
|
2544 | if (expect_false (waittime < backend_mintime)) |
|
|
2545 | waittime = backend_mintime; |
1930 | |
2546 | |
|
|
2547 | /* extra check because io_blocktime is commonly 0 */ |
1931 | if (expect_true (sleeptime > io_blocktime)) |
2548 | if (expect_false (io_blocktime)) |
1932 | sleeptime = io_blocktime; |
|
|
1933 | |
|
|
1934 | if (sleeptime) |
|
|
1935 | { |
2549 | { |
|
|
2550 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2551 | |
|
|
2552 | if (sleeptime > waittime - backend_mintime) |
|
|
2553 | sleeptime = waittime - backend_mintime; |
|
|
2554 | |
|
|
2555 | if (expect_true (sleeptime > 0.)) |
|
|
2556 | { |
1936 | ev_sleep (sleeptime); |
2557 | ev_sleep (sleeptime); |
1937 | waittime -= sleeptime; |
2558 | waittime -= sleeptime; |
|
|
2559 | } |
1938 | } |
2560 | } |
1939 | } |
2561 | } |
1940 | |
2562 | |
|
|
2563 | #if EV_FEATURE_API |
1941 | ++loop_count; |
2564 | ++loop_count; |
|
|
2565 | #endif |
|
|
2566 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1942 | backend_poll (EV_A_ waittime); |
2567 | backend_poll (EV_A_ waittime); |
|
|
2568 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2569 | |
|
|
2570 | pipe_write_wanted = 0; |
|
|
2571 | |
|
|
2572 | if (pipe_write_skipped) |
|
|
2573 | { |
|
|
2574 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
2575 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
2576 | } |
|
|
2577 | |
1943 | |
2578 | |
1944 | /* update ev_rt_now, do magic */ |
2579 | /* update ev_rt_now, do magic */ |
1945 | time_update (EV_A_ waittime + sleeptime); |
2580 | time_update (EV_A_ waittime + sleeptime); |
1946 | } |
2581 | } |
1947 | |
2582 | |
… | |
… | |
1954 | #if EV_IDLE_ENABLE |
2589 | #if EV_IDLE_ENABLE |
1955 | /* queue idle watchers unless other events are pending */ |
2590 | /* queue idle watchers unless other events are pending */ |
1956 | idle_reify (EV_A); |
2591 | idle_reify (EV_A); |
1957 | #endif |
2592 | #endif |
1958 | |
2593 | |
|
|
2594 | #if EV_CHECK_ENABLE |
1959 | /* queue check watchers, to be executed first */ |
2595 | /* queue check watchers, to be executed first */ |
1960 | if (expect_false (checkcnt)) |
2596 | if (expect_false (checkcnt)) |
1961 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2597 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2598 | #endif |
1962 | |
2599 | |
1963 | call_pending (EV_A); |
2600 | EV_INVOKE_PENDING; |
1964 | } |
2601 | } |
1965 | while (expect_true ( |
2602 | while (expect_true ( |
1966 | activecnt |
2603 | activecnt |
1967 | && !loop_done |
2604 | && !loop_done |
1968 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2605 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
1969 | )); |
2606 | )); |
1970 | |
2607 | |
1971 | if (loop_done == EVUNLOOP_ONE) |
2608 | if (loop_done == EVBREAK_ONE) |
1972 | loop_done = EVUNLOOP_CANCEL; |
2609 | loop_done = EVBREAK_CANCEL; |
1973 | } |
|
|
1974 | |
2610 | |
|
|
2611 | #if EV_FEATURE_API |
|
|
2612 | --loop_depth; |
|
|
2613 | #endif |
|
|
2614 | } |
|
|
2615 | |
1975 | void |
2616 | void |
1976 | ev_unloop (EV_P_ int how) |
2617 | ev_break (EV_P_ int how) |
1977 | { |
2618 | { |
1978 | loop_done = how; |
2619 | loop_done = how; |
1979 | } |
2620 | } |
1980 | |
2621 | |
|
|
2622 | void |
|
|
2623 | ev_ref (EV_P) |
|
|
2624 | { |
|
|
2625 | ++activecnt; |
|
|
2626 | } |
|
|
2627 | |
|
|
2628 | void |
|
|
2629 | ev_unref (EV_P) |
|
|
2630 | { |
|
|
2631 | --activecnt; |
|
|
2632 | } |
|
|
2633 | |
|
|
2634 | void |
|
|
2635 | ev_now_update (EV_P) |
|
|
2636 | { |
|
|
2637 | time_update (EV_A_ 1e100); |
|
|
2638 | } |
|
|
2639 | |
|
|
2640 | void |
|
|
2641 | ev_suspend (EV_P) |
|
|
2642 | { |
|
|
2643 | ev_now_update (EV_A); |
|
|
2644 | } |
|
|
2645 | |
|
|
2646 | void |
|
|
2647 | ev_resume (EV_P) |
|
|
2648 | { |
|
|
2649 | ev_tstamp mn_prev = mn_now; |
|
|
2650 | |
|
|
2651 | ev_now_update (EV_A); |
|
|
2652 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2653 | #if EV_PERIODIC_ENABLE |
|
|
2654 | /* TODO: really do this? */ |
|
|
2655 | periodics_reschedule (EV_A); |
|
|
2656 | #endif |
|
|
2657 | } |
|
|
2658 | |
1981 | /*****************************************************************************/ |
2659 | /*****************************************************************************/ |
|
|
2660 | /* singly-linked list management, used when the expected list length is short */ |
1982 | |
2661 | |
1983 | void inline_size |
2662 | inline_size void |
1984 | wlist_add (WL *head, WL elem) |
2663 | wlist_add (WL *head, WL elem) |
1985 | { |
2664 | { |
1986 | elem->next = *head; |
2665 | elem->next = *head; |
1987 | *head = elem; |
2666 | *head = elem; |
1988 | } |
2667 | } |
1989 | |
2668 | |
1990 | void inline_size |
2669 | inline_size void |
1991 | wlist_del (WL *head, WL elem) |
2670 | wlist_del (WL *head, WL elem) |
1992 | { |
2671 | { |
1993 | while (*head) |
2672 | while (*head) |
1994 | { |
2673 | { |
1995 | if (*head == elem) |
2674 | if (expect_true (*head == elem)) |
1996 | { |
2675 | { |
1997 | *head = elem->next; |
2676 | *head = elem->next; |
1998 | return; |
2677 | break; |
1999 | } |
2678 | } |
2000 | |
2679 | |
2001 | head = &(*head)->next; |
2680 | head = &(*head)->next; |
2002 | } |
2681 | } |
2003 | } |
2682 | } |
2004 | |
2683 | |
2005 | void inline_speed |
2684 | /* internal, faster, version of ev_clear_pending */ |
|
|
2685 | inline_speed void |
2006 | clear_pending (EV_P_ W w) |
2686 | clear_pending (EV_P_ W w) |
2007 | { |
2687 | { |
2008 | if (w->pending) |
2688 | if (w->pending) |
2009 | { |
2689 | { |
2010 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2690 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2011 | w->pending = 0; |
2691 | w->pending = 0; |
2012 | } |
2692 | } |
2013 | } |
2693 | } |
2014 | |
2694 | |
2015 | int |
2695 | int |
… | |
… | |
2019 | int pending = w_->pending; |
2699 | int pending = w_->pending; |
2020 | |
2700 | |
2021 | if (expect_true (pending)) |
2701 | if (expect_true (pending)) |
2022 | { |
2702 | { |
2023 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2703 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2704 | p->w = (W)&pending_w; |
2024 | w_->pending = 0; |
2705 | w_->pending = 0; |
2025 | p->w = 0; |
|
|
2026 | return p->events; |
2706 | return p->events; |
2027 | } |
2707 | } |
2028 | else |
2708 | else |
2029 | return 0; |
2709 | return 0; |
2030 | } |
2710 | } |
2031 | |
2711 | |
2032 | void inline_size |
2712 | inline_size void |
2033 | pri_adjust (EV_P_ W w) |
2713 | pri_adjust (EV_P_ W w) |
2034 | { |
2714 | { |
2035 | int pri = w->priority; |
2715 | int pri = ev_priority (w); |
2036 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2716 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2037 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2717 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2038 | w->priority = pri; |
2718 | ev_set_priority (w, pri); |
2039 | } |
2719 | } |
2040 | |
2720 | |
2041 | void inline_speed |
2721 | inline_speed void |
2042 | ev_start (EV_P_ W w, int active) |
2722 | ev_start (EV_P_ W w, int active) |
2043 | { |
2723 | { |
2044 | pri_adjust (EV_A_ w); |
2724 | pri_adjust (EV_A_ w); |
2045 | w->active = active; |
2725 | w->active = active; |
2046 | ev_ref (EV_A); |
2726 | ev_ref (EV_A); |
2047 | } |
2727 | } |
2048 | |
2728 | |
2049 | void inline_size |
2729 | inline_size void |
2050 | ev_stop (EV_P_ W w) |
2730 | ev_stop (EV_P_ W w) |
2051 | { |
2731 | { |
2052 | ev_unref (EV_A); |
2732 | ev_unref (EV_A); |
2053 | w->active = 0; |
2733 | w->active = 0; |
2054 | } |
2734 | } |
… | |
… | |
2061 | int fd = w->fd; |
2741 | int fd = w->fd; |
2062 | |
2742 | |
2063 | if (expect_false (ev_is_active (w))) |
2743 | if (expect_false (ev_is_active (w))) |
2064 | return; |
2744 | return; |
2065 | |
2745 | |
2066 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2746 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2747 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2067 | |
2748 | |
2068 | EV_FREQUENT_CHECK; |
2749 | EV_FREQUENT_CHECK; |
2069 | |
2750 | |
2070 | ev_start (EV_A_ (W)w, 1); |
2751 | ev_start (EV_A_ (W)w, 1); |
2071 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2752 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2072 | wlist_add (&anfds[fd].head, (WL)w); |
2753 | wlist_add (&anfds[fd].head, (WL)w); |
2073 | |
2754 | |
2074 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2755 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2075 | w->events &= ~EV_IOFDSET; |
2756 | w->events &= ~EV__IOFDSET; |
2076 | |
2757 | |
2077 | EV_FREQUENT_CHECK; |
2758 | EV_FREQUENT_CHECK; |
2078 | } |
2759 | } |
2079 | |
2760 | |
2080 | void noinline |
2761 | void noinline |
… | |
… | |
2082 | { |
2763 | { |
2083 | clear_pending (EV_A_ (W)w); |
2764 | clear_pending (EV_A_ (W)w); |
2084 | if (expect_false (!ev_is_active (w))) |
2765 | if (expect_false (!ev_is_active (w))) |
2085 | return; |
2766 | return; |
2086 | |
2767 | |
2087 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2768 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2088 | |
2769 | |
2089 | EV_FREQUENT_CHECK; |
2770 | EV_FREQUENT_CHECK; |
2090 | |
2771 | |
2091 | wlist_del (&anfds[w->fd].head, (WL)w); |
2772 | wlist_del (&anfds[w->fd].head, (WL)w); |
2092 | ev_stop (EV_A_ (W)w); |
2773 | ev_stop (EV_A_ (W)w); |
2093 | |
2774 | |
2094 | fd_change (EV_A_ w->fd, 1); |
2775 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2095 | |
2776 | |
2096 | EV_FREQUENT_CHECK; |
2777 | EV_FREQUENT_CHECK; |
2097 | } |
2778 | } |
2098 | |
2779 | |
2099 | void noinline |
2780 | void noinline |
… | |
… | |
2102 | if (expect_false (ev_is_active (w))) |
2783 | if (expect_false (ev_is_active (w))) |
2103 | return; |
2784 | return; |
2104 | |
2785 | |
2105 | ev_at (w) += mn_now; |
2786 | ev_at (w) += mn_now; |
2106 | |
2787 | |
2107 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2788 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2108 | |
2789 | |
2109 | EV_FREQUENT_CHECK; |
2790 | EV_FREQUENT_CHECK; |
2110 | |
2791 | |
2111 | ++timercnt; |
2792 | ++timercnt; |
2112 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2793 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2115 | ANHE_at_cache (timers [ev_active (w)]); |
2796 | ANHE_at_cache (timers [ev_active (w)]); |
2116 | upheap (timers, ev_active (w)); |
2797 | upheap (timers, ev_active (w)); |
2117 | |
2798 | |
2118 | EV_FREQUENT_CHECK; |
2799 | EV_FREQUENT_CHECK; |
2119 | |
2800 | |
2120 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2801 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2121 | } |
2802 | } |
2122 | |
2803 | |
2123 | void noinline |
2804 | void noinline |
2124 | ev_timer_stop (EV_P_ ev_timer *w) |
2805 | ev_timer_stop (EV_P_ ev_timer *w) |
2125 | { |
2806 | { |
… | |
… | |
2130 | EV_FREQUENT_CHECK; |
2811 | EV_FREQUENT_CHECK; |
2131 | |
2812 | |
2132 | { |
2813 | { |
2133 | int active = ev_active (w); |
2814 | int active = ev_active (w); |
2134 | |
2815 | |
2135 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2816 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2136 | |
2817 | |
2137 | --timercnt; |
2818 | --timercnt; |
2138 | |
2819 | |
2139 | if (expect_true (active < timercnt + HEAP0)) |
2820 | if (expect_true (active < timercnt + HEAP0)) |
2140 | { |
2821 | { |
2141 | timers [active] = timers [timercnt + HEAP0]; |
2822 | timers [active] = timers [timercnt + HEAP0]; |
2142 | adjustheap (timers, timercnt, active); |
2823 | adjustheap (timers, timercnt, active); |
2143 | } |
2824 | } |
2144 | } |
2825 | } |
2145 | |
2826 | |
2146 | EV_FREQUENT_CHECK; |
|
|
2147 | |
|
|
2148 | ev_at (w) -= mn_now; |
2827 | ev_at (w) -= mn_now; |
2149 | |
2828 | |
2150 | ev_stop (EV_A_ (W)w); |
2829 | ev_stop (EV_A_ (W)w); |
|
|
2830 | |
|
|
2831 | EV_FREQUENT_CHECK; |
2151 | } |
2832 | } |
2152 | |
2833 | |
2153 | void noinline |
2834 | void noinline |
2154 | ev_timer_again (EV_P_ ev_timer *w) |
2835 | ev_timer_again (EV_P_ ev_timer *w) |
2155 | { |
2836 | { |
… | |
… | |
2173 | } |
2854 | } |
2174 | |
2855 | |
2175 | EV_FREQUENT_CHECK; |
2856 | EV_FREQUENT_CHECK; |
2176 | } |
2857 | } |
2177 | |
2858 | |
|
|
2859 | ev_tstamp |
|
|
2860 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2861 | { |
|
|
2862 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2863 | } |
|
|
2864 | |
2178 | #if EV_PERIODIC_ENABLE |
2865 | #if EV_PERIODIC_ENABLE |
2179 | void noinline |
2866 | void noinline |
2180 | ev_periodic_start (EV_P_ ev_periodic *w) |
2867 | ev_periodic_start (EV_P_ ev_periodic *w) |
2181 | { |
2868 | { |
2182 | if (expect_false (ev_is_active (w))) |
2869 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2184 | |
2871 | |
2185 | if (w->reschedule_cb) |
2872 | if (w->reschedule_cb) |
2186 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2873 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2187 | else if (w->interval) |
2874 | else if (w->interval) |
2188 | { |
2875 | { |
2189 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2876 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2190 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2877 | periodic_recalc (EV_A_ w); |
2191 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2192 | } |
2878 | } |
2193 | else |
2879 | else |
2194 | ev_at (w) = w->offset; |
2880 | ev_at (w) = w->offset; |
2195 | |
2881 | |
2196 | EV_FREQUENT_CHECK; |
2882 | EV_FREQUENT_CHECK; |
… | |
… | |
2202 | ANHE_at_cache (periodics [ev_active (w)]); |
2888 | ANHE_at_cache (periodics [ev_active (w)]); |
2203 | upheap (periodics, ev_active (w)); |
2889 | upheap (periodics, ev_active (w)); |
2204 | |
2890 | |
2205 | EV_FREQUENT_CHECK; |
2891 | EV_FREQUENT_CHECK; |
2206 | |
2892 | |
2207 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2893 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2208 | } |
2894 | } |
2209 | |
2895 | |
2210 | void noinline |
2896 | void noinline |
2211 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2897 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2212 | { |
2898 | { |
… | |
… | |
2217 | EV_FREQUENT_CHECK; |
2903 | EV_FREQUENT_CHECK; |
2218 | |
2904 | |
2219 | { |
2905 | { |
2220 | int active = ev_active (w); |
2906 | int active = ev_active (w); |
2221 | |
2907 | |
2222 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2908 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2223 | |
2909 | |
2224 | --periodiccnt; |
2910 | --periodiccnt; |
2225 | |
2911 | |
2226 | if (expect_true (active < periodiccnt + HEAP0)) |
2912 | if (expect_true (active < periodiccnt + HEAP0)) |
2227 | { |
2913 | { |
2228 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2914 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2229 | adjustheap (periodics, periodiccnt, active); |
2915 | adjustheap (periodics, periodiccnt, active); |
2230 | } |
2916 | } |
2231 | } |
2917 | } |
2232 | |
2918 | |
2233 | EV_FREQUENT_CHECK; |
|
|
2234 | |
|
|
2235 | ev_stop (EV_A_ (W)w); |
2919 | ev_stop (EV_A_ (W)w); |
|
|
2920 | |
|
|
2921 | EV_FREQUENT_CHECK; |
2236 | } |
2922 | } |
2237 | |
2923 | |
2238 | void noinline |
2924 | void noinline |
2239 | ev_periodic_again (EV_P_ ev_periodic *w) |
2925 | ev_periodic_again (EV_P_ ev_periodic *w) |
2240 | { |
2926 | { |
… | |
… | |
2246 | |
2932 | |
2247 | #ifndef SA_RESTART |
2933 | #ifndef SA_RESTART |
2248 | # define SA_RESTART 0 |
2934 | # define SA_RESTART 0 |
2249 | #endif |
2935 | #endif |
2250 | |
2936 | |
|
|
2937 | #if EV_SIGNAL_ENABLE |
|
|
2938 | |
2251 | void noinline |
2939 | void noinline |
2252 | ev_signal_start (EV_P_ ev_signal *w) |
2940 | ev_signal_start (EV_P_ ev_signal *w) |
2253 | { |
2941 | { |
2254 | #if EV_MULTIPLICITY |
|
|
2255 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2256 | #endif |
|
|
2257 | if (expect_false (ev_is_active (w))) |
2942 | if (expect_false (ev_is_active (w))) |
2258 | return; |
2943 | return; |
2259 | |
2944 | |
2260 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2945 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2261 | |
2946 | |
2262 | evpipe_init (EV_A); |
2947 | #if EV_MULTIPLICITY |
|
|
2948 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2949 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2263 | |
2950 | |
2264 | EV_FREQUENT_CHECK; |
2951 | signals [w->signum - 1].loop = EV_A; |
|
|
2952 | #endif |
2265 | |
2953 | |
|
|
2954 | EV_FREQUENT_CHECK; |
|
|
2955 | |
|
|
2956 | #if EV_USE_SIGNALFD |
|
|
2957 | if (sigfd == -2) |
2266 | { |
2958 | { |
2267 | #ifndef _WIN32 |
2959 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2268 | sigset_t full, prev; |
2960 | if (sigfd < 0 && errno == EINVAL) |
2269 | sigfillset (&full); |
2961 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2270 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2271 | #endif |
|
|
2272 | |
2962 | |
2273 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2963 | if (sigfd >= 0) |
|
|
2964 | { |
|
|
2965 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2274 | |
2966 | |
2275 | #ifndef _WIN32 |
2967 | sigemptyset (&sigfd_set); |
2276 | sigprocmask (SIG_SETMASK, &prev, 0); |
2968 | |
2277 | #endif |
2969 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2970 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2971 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2972 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2973 | } |
2278 | } |
2974 | } |
|
|
2975 | |
|
|
2976 | if (sigfd >= 0) |
|
|
2977 | { |
|
|
2978 | /* TODO: check .head */ |
|
|
2979 | sigaddset (&sigfd_set, w->signum); |
|
|
2980 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2981 | |
|
|
2982 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2983 | } |
|
|
2984 | #endif |
2279 | |
2985 | |
2280 | ev_start (EV_A_ (W)w, 1); |
2986 | ev_start (EV_A_ (W)w, 1); |
2281 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2987 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2282 | |
2988 | |
2283 | if (!((WL)w)->next) |
2989 | if (!((WL)w)->next) |
|
|
2990 | # if EV_USE_SIGNALFD |
|
|
2991 | if (sigfd < 0) /*TODO*/ |
|
|
2992 | # endif |
2284 | { |
2993 | { |
2285 | #if _WIN32 |
2994 | # ifdef _WIN32 |
|
|
2995 | evpipe_init (EV_A); |
|
|
2996 | |
2286 | signal (w->signum, ev_sighandler); |
2997 | signal (w->signum, ev_sighandler); |
2287 | #else |
2998 | # else |
2288 | struct sigaction sa; |
2999 | struct sigaction sa; |
|
|
3000 | |
|
|
3001 | evpipe_init (EV_A); |
|
|
3002 | |
2289 | sa.sa_handler = ev_sighandler; |
3003 | sa.sa_handler = ev_sighandler; |
2290 | sigfillset (&sa.sa_mask); |
3004 | sigfillset (&sa.sa_mask); |
2291 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3005 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2292 | sigaction (w->signum, &sa, 0); |
3006 | sigaction (w->signum, &sa, 0); |
|
|
3007 | |
|
|
3008 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3009 | { |
|
|
3010 | sigemptyset (&sa.sa_mask); |
|
|
3011 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3012 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3013 | } |
2293 | #endif |
3014 | #endif |
2294 | } |
3015 | } |
2295 | |
3016 | |
2296 | EV_FREQUENT_CHECK; |
3017 | EV_FREQUENT_CHECK; |
2297 | } |
3018 | } |
2298 | |
3019 | |
2299 | void noinline |
3020 | void noinline |
… | |
… | |
2307 | |
3028 | |
2308 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3029 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2309 | ev_stop (EV_A_ (W)w); |
3030 | ev_stop (EV_A_ (W)w); |
2310 | |
3031 | |
2311 | if (!signals [w->signum - 1].head) |
3032 | if (!signals [w->signum - 1].head) |
|
|
3033 | { |
|
|
3034 | #if EV_MULTIPLICITY |
|
|
3035 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3036 | #endif |
|
|
3037 | #if EV_USE_SIGNALFD |
|
|
3038 | if (sigfd >= 0) |
|
|
3039 | { |
|
|
3040 | sigset_t ss; |
|
|
3041 | |
|
|
3042 | sigemptyset (&ss); |
|
|
3043 | sigaddset (&ss, w->signum); |
|
|
3044 | sigdelset (&sigfd_set, w->signum); |
|
|
3045 | |
|
|
3046 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3047 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3048 | } |
|
|
3049 | else |
|
|
3050 | #endif |
2312 | signal (w->signum, SIG_DFL); |
3051 | signal (w->signum, SIG_DFL); |
|
|
3052 | } |
2313 | |
3053 | |
2314 | EV_FREQUENT_CHECK; |
3054 | EV_FREQUENT_CHECK; |
2315 | } |
3055 | } |
|
|
3056 | |
|
|
3057 | #endif |
|
|
3058 | |
|
|
3059 | #if EV_CHILD_ENABLE |
2316 | |
3060 | |
2317 | void |
3061 | void |
2318 | ev_child_start (EV_P_ ev_child *w) |
3062 | ev_child_start (EV_P_ ev_child *w) |
2319 | { |
3063 | { |
2320 | #if EV_MULTIPLICITY |
3064 | #if EV_MULTIPLICITY |
2321 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3065 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2322 | #endif |
3066 | #endif |
2323 | if (expect_false (ev_is_active (w))) |
3067 | if (expect_false (ev_is_active (w))) |
2324 | return; |
3068 | return; |
2325 | |
3069 | |
2326 | EV_FREQUENT_CHECK; |
3070 | EV_FREQUENT_CHECK; |
2327 | |
3071 | |
2328 | ev_start (EV_A_ (W)w, 1); |
3072 | ev_start (EV_A_ (W)w, 1); |
2329 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3073 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2330 | |
3074 | |
2331 | EV_FREQUENT_CHECK; |
3075 | EV_FREQUENT_CHECK; |
2332 | } |
3076 | } |
2333 | |
3077 | |
2334 | void |
3078 | void |
… | |
… | |
2338 | if (expect_false (!ev_is_active (w))) |
3082 | if (expect_false (!ev_is_active (w))) |
2339 | return; |
3083 | return; |
2340 | |
3084 | |
2341 | EV_FREQUENT_CHECK; |
3085 | EV_FREQUENT_CHECK; |
2342 | |
3086 | |
2343 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3087 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2344 | ev_stop (EV_A_ (W)w); |
3088 | ev_stop (EV_A_ (W)w); |
2345 | |
3089 | |
2346 | EV_FREQUENT_CHECK; |
3090 | EV_FREQUENT_CHECK; |
2347 | } |
3091 | } |
|
|
3092 | |
|
|
3093 | #endif |
2348 | |
3094 | |
2349 | #if EV_STAT_ENABLE |
3095 | #if EV_STAT_ENABLE |
2350 | |
3096 | |
2351 | # ifdef _WIN32 |
3097 | # ifdef _WIN32 |
2352 | # undef lstat |
3098 | # undef lstat |
2353 | # define lstat(a,b) _stati64 (a,b) |
3099 | # define lstat(a,b) _stati64 (a,b) |
2354 | # endif |
3100 | # endif |
2355 | |
3101 | |
2356 | #define DEF_STAT_INTERVAL 5.0074891 |
3102 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3103 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2357 | #define MIN_STAT_INTERVAL 0.1074891 |
3104 | #define MIN_STAT_INTERVAL 0.1074891 |
2358 | |
3105 | |
2359 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3106 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2360 | |
3107 | |
2361 | #if EV_USE_INOTIFY |
3108 | #if EV_USE_INOTIFY |
2362 | # define EV_INOTIFY_BUFSIZE 8192 |
3109 | |
|
|
3110 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3111 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2363 | |
3112 | |
2364 | static void noinline |
3113 | static void noinline |
2365 | infy_add (EV_P_ ev_stat *w) |
3114 | infy_add (EV_P_ ev_stat *w) |
2366 | { |
3115 | { |
2367 | 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); |
3116 | 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); |
2368 | |
3117 | |
2369 | if (w->wd < 0) |
3118 | if (w->wd >= 0) |
|
|
3119 | { |
|
|
3120 | struct statfs sfs; |
|
|
3121 | |
|
|
3122 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3123 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3124 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3125 | |
|
|
3126 | if (!fs_2625) |
|
|
3127 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3128 | else if (!statfs (w->path, &sfs) |
|
|
3129 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3130 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3131 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3132 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3133 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3134 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3135 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3136 | else |
|
|
3137 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2370 | { |
3138 | } |
2371 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3139 | else |
|
|
3140 | { |
|
|
3141 | /* can't use inotify, continue to stat */ |
|
|
3142 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2372 | |
3143 | |
2373 | /* monitor some parent directory for speedup hints */ |
3144 | /* if path is not there, monitor some parent directory for speedup hints */ |
2374 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
3145 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2375 | /* but an efficiency issue only */ |
3146 | /* but an efficiency issue only */ |
2376 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3147 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2377 | { |
3148 | { |
2378 | char path [4096]; |
3149 | char path [4096]; |
2379 | strcpy (path, w->path); |
3150 | strcpy (path, w->path); |
… | |
… | |
2383 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3154 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2384 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3155 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2385 | |
3156 | |
2386 | char *pend = strrchr (path, '/'); |
3157 | char *pend = strrchr (path, '/'); |
2387 | |
3158 | |
2388 | if (!pend) |
3159 | if (!pend || pend == path) |
2389 | break; /* whoops, no '/', complain to your admin */ |
3160 | break; |
2390 | |
3161 | |
2391 | *pend = 0; |
3162 | *pend = 0; |
2392 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3163 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2393 | } |
3164 | } |
2394 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3165 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2395 | } |
3166 | } |
2396 | } |
3167 | } |
2397 | else |
|
|
2398 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2399 | |
3168 | |
2400 | if (w->wd >= 0) |
3169 | if (w->wd >= 0) |
2401 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3170 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3171 | |
|
|
3172 | /* now re-arm timer, if required */ |
|
|
3173 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3174 | ev_timer_again (EV_A_ &w->timer); |
|
|
3175 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2402 | } |
3176 | } |
2403 | |
3177 | |
2404 | static void noinline |
3178 | static void noinline |
2405 | infy_del (EV_P_ ev_stat *w) |
3179 | infy_del (EV_P_ ev_stat *w) |
2406 | { |
3180 | { |
… | |
… | |
2409 | |
3183 | |
2410 | if (wd < 0) |
3184 | if (wd < 0) |
2411 | return; |
3185 | return; |
2412 | |
3186 | |
2413 | w->wd = -2; |
3187 | w->wd = -2; |
2414 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3188 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2415 | wlist_del (&fs_hash [slot].head, (WL)w); |
3189 | wlist_del (&fs_hash [slot].head, (WL)w); |
2416 | |
3190 | |
2417 | /* remove this watcher, if others are watching it, they will rearm */ |
3191 | /* remove this watcher, if others are watching it, they will rearm */ |
2418 | inotify_rm_watch (fs_fd, wd); |
3192 | inotify_rm_watch (fs_fd, wd); |
2419 | } |
3193 | } |
2420 | |
3194 | |
2421 | static void noinline |
3195 | static void noinline |
2422 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3196 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2423 | { |
3197 | { |
2424 | if (slot < 0) |
3198 | if (slot < 0) |
2425 | /* overflow, need to check for all hahs slots */ |
3199 | /* overflow, need to check for all hash slots */ |
2426 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3200 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2427 | infy_wd (EV_A_ slot, wd, ev); |
3201 | infy_wd (EV_A_ slot, wd, ev); |
2428 | else |
3202 | else |
2429 | { |
3203 | { |
2430 | WL w_; |
3204 | WL w_; |
2431 | |
3205 | |
2432 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3206 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2433 | { |
3207 | { |
2434 | ev_stat *w = (ev_stat *)w_; |
3208 | ev_stat *w = (ev_stat *)w_; |
2435 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3209 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2436 | |
3210 | |
2437 | if (w->wd == wd || wd == -1) |
3211 | if (w->wd == wd || wd == -1) |
2438 | { |
3212 | { |
2439 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3213 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2440 | { |
3214 | { |
|
|
3215 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2441 | w->wd = -1; |
3216 | w->wd = -1; |
2442 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3217 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2443 | } |
3218 | } |
2444 | |
3219 | |
2445 | stat_timer_cb (EV_A_ &w->timer, 0); |
3220 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2450 | |
3225 | |
2451 | static void |
3226 | static void |
2452 | infy_cb (EV_P_ ev_io *w, int revents) |
3227 | infy_cb (EV_P_ ev_io *w, int revents) |
2453 | { |
3228 | { |
2454 | char buf [EV_INOTIFY_BUFSIZE]; |
3229 | char buf [EV_INOTIFY_BUFSIZE]; |
2455 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2456 | int ofs; |
3230 | int ofs; |
2457 | int len = read (fs_fd, buf, sizeof (buf)); |
3231 | int len = read (fs_fd, buf, sizeof (buf)); |
2458 | |
3232 | |
2459 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3233 | for (ofs = 0; ofs < len; ) |
|
|
3234 | { |
|
|
3235 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2460 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3236 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3237 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3238 | } |
2461 | } |
3239 | } |
2462 | |
3240 | |
2463 | void inline_size |
3241 | inline_size void |
|
|
3242 | ev_check_2625 (EV_P) |
|
|
3243 | { |
|
|
3244 | /* kernels < 2.6.25 are borked |
|
|
3245 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3246 | */ |
|
|
3247 | if (ev_linux_version () < 0x020619) |
|
|
3248 | return; |
|
|
3249 | |
|
|
3250 | fs_2625 = 1; |
|
|
3251 | } |
|
|
3252 | |
|
|
3253 | inline_size int |
|
|
3254 | infy_newfd (void) |
|
|
3255 | { |
|
|
3256 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3257 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3258 | if (fd >= 0) |
|
|
3259 | return fd; |
|
|
3260 | #endif |
|
|
3261 | return inotify_init (); |
|
|
3262 | } |
|
|
3263 | |
|
|
3264 | inline_size void |
2464 | infy_init (EV_P) |
3265 | infy_init (EV_P) |
2465 | { |
3266 | { |
2466 | if (fs_fd != -2) |
3267 | if (fs_fd != -2) |
2467 | return; |
3268 | return; |
2468 | |
3269 | |
|
|
3270 | fs_fd = -1; |
|
|
3271 | |
|
|
3272 | ev_check_2625 (EV_A); |
|
|
3273 | |
2469 | fs_fd = inotify_init (); |
3274 | fs_fd = infy_newfd (); |
2470 | |
3275 | |
2471 | if (fs_fd >= 0) |
3276 | if (fs_fd >= 0) |
2472 | { |
3277 | { |
|
|
3278 | fd_intern (fs_fd); |
2473 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3279 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2474 | ev_set_priority (&fs_w, EV_MAXPRI); |
3280 | ev_set_priority (&fs_w, EV_MAXPRI); |
2475 | ev_io_start (EV_A_ &fs_w); |
3281 | ev_io_start (EV_A_ &fs_w); |
|
|
3282 | ev_unref (EV_A); |
2476 | } |
3283 | } |
2477 | } |
3284 | } |
2478 | |
3285 | |
2479 | void inline_size |
3286 | inline_size void |
2480 | infy_fork (EV_P) |
3287 | infy_fork (EV_P) |
2481 | { |
3288 | { |
2482 | int slot; |
3289 | int slot; |
2483 | |
3290 | |
2484 | if (fs_fd < 0) |
3291 | if (fs_fd < 0) |
2485 | return; |
3292 | return; |
2486 | |
3293 | |
|
|
3294 | ev_ref (EV_A); |
|
|
3295 | ev_io_stop (EV_A_ &fs_w); |
2487 | close (fs_fd); |
3296 | close (fs_fd); |
2488 | fs_fd = inotify_init (); |
3297 | fs_fd = infy_newfd (); |
2489 | |
3298 | |
|
|
3299 | if (fs_fd >= 0) |
|
|
3300 | { |
|
|
3301 | fd_intern (fs_fd); |
|
|
3302 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3303 | ev_io_start (EV_A_ &fs_w); |
|
|
3304 | ev_unref (EV_A); |
|
|
3305 | } |
|
|
3306 | |
2490 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3307 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2491 | { |
3308 | { |
2492 | WL w_ = fs_hash [slot].head; |
3309 | WL w_ = fs_hash [slot].head; |
2493 | fs_hash [slot].head = 0; |
3310 | fs_hash [slot].head = 0; |
2494 | |
3311 | |
2495 | while (w_) |
3312 | while (w_) |
… | |
… | |
2500 | w->wd = -1; |
3317 | w->wd = -1; |
2501 | |
3318 | |
2502 | if (fs_fd >= 0) |
3319 | if (fs_fd >= 0) |
2503 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3320 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2504 | else |
3321 | else |
|
|
3322 | { |
|
|
3323 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3324 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2505 | ev_timer_start (EV_A_ &w->timer); |
3325 | ev_timer_again (EV_A_ &w->timer); |
|
|
3326 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3327 | } |
2506 | } |
3328 | } |
2507 | |
|
|
2508 | } |
3329 | } |
2509 | } |
3330 | } |
2510 | |
3331 | |
|
|
3332 | #endif |
|
|
3333 | |
|
|
3334 | #ifdef _WIN32 |
|
|
3335 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3336 | #else |
|
|
3337 | # define EV_LSTAT(p,b) lstat (p, b) |
2511 | #endif |
3338 | #endif |
2512 | |
3339 | |
2513 | void |
3340 | void |
2514 | ev_stat_stat (EV_P_ ev_stat *w) |
3341 | ev_stat_stat (EV_P_ ev_stat *w) |
2515 | { |
3342 | { |
… | |
… | |
2522 | static void noinline |
3349 | static void noinline |
2523 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3350 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2524 | { |
3351 | { |
2525 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3352 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2526 | |
3353 | |
2527 | /* we copy this here each the time so that */ |
3354 | ev_statdata prev = w->attr; |
2528 | /* prev has the old value when the callback gets invoked */ |
|
|
2529 | w->prev = w->attr; |
|
|
2530 | ev_stat_stat (EV_A_ w); |
3355 | ev_stat_stat (EV_A_ w); |
2531 | |
3356 | |
2532 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3357 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2533 | if ( |
3358 | if ( |
2534 | w->prev.st_dev != w->attr.st_dev |
3359 | prev.st_dev != w->attr.st_dev |
2535 | || w->prev.st_ino != w->attr.st_ino |
3360 | || prev.st_ino != w->attr.st_ino |
2536 | || w->prev.st_mode != w->attr.st_mode |
3361 | || prev.st_mode != w->attr.st_mode |
2537 | || w->prev.st_nlink != w->attr.st_nlink |
3362 | || prev.st_nlink != w->attr.st_nlink |
2538 | || w->prev.st_uid != w->attr.st_uid |
3363 | || prev.st_uid != w->attr.st_uid |
2539 | || w->prev.st_gid != w->attr.st_gid |
3364 | || prev.st_gid != w->attr.st_gid |
2540 | || w->prev.st_rdev != w->attr.st_rdev |
3365 | || prev.st_rdev != w->attr.st_rdev |
2541 | || w->prev.st_size != w->attr.st_size |
3366 | || prev.st_size != w->attr.st_size |
2542 | || w->prev.st_atime != w->attr.st_atime |
3367 | || prev.st_atime != w->attr.st_atime |
2543 | || w->prev.st_mtime != w->attr.st_mtime |
3368 | || prev.st_mtime != w->attr.st_mtime |
2544 | || w->prev.st_ctime != w->attr.st_ctime |
3369 | || prev.st_ctime != w->attr.st_ctime |
2545 | ) { |
3370 | ) { |
|
|
3371 | /* we only update w->prev on actual differences */ |
|
|
3372 | /* in case we test more often than invoke the callback, */ |
|
|
3373 | /* to ensure that prev is always different to attr */ |
|
|
3374 | w->prev = prev; |
|
|
3375 | |
2546 | #if EV_USE_INOTIFY |
3376 | #if EV_USE_INOTIFY |
|
|
3377 | if (fs_fd >= 0) |
|
|
3378 | { |
2547 | infy_del (EV_A_ w); |
3379 | infy_del (EV_A_ w); |
2548 | infy_add (EV_A_ w); |
3380 | infy_add (EV_A_ w); |
2549 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3381 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3382 | } |
2550 | #endif |
3383 | #endif |
2551 | |
3384 | |
2552 | ev_feed_event (EV_A_ w, EV_STAT); |
3385 | ev_feed_event (EV_A_ w, EV_STAT); |
2553 | } |
3386 | } |
2554 | } |
3387 | } |
… | |
… | |
2557 | ev_stat_start (EV_P_ ev_stat *w) |
3390 | ev_stat_start (EV_P_ ev_stat *w) |
2558 | { |
3391 | { |
2559 | if (expect_false (ev_is_active (w))) |
3392 | if (expect_false (ev_is_active (w))) |
2560 | return; |
3393 | return; |
2561 | |
3394 | |
2562 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2563 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2564 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2565 | |
|
|
2566 | ev_stat_stat (EV_A_ w); |
3395 | ev_stat_stat (EV_A_ w); |
2567 | |
3396 | |
|
|
3397 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2568 | if (w->interval < MIN_STAT_INTERVAL) |
3398 | w->interval = MIN_STAT_INTERVAL; |
2569 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2570 | |
3399 | |
2571 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3400 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2572 | ev_set_priority (&w->timer, ev_priority (w)); |
3401 | ev_set_priority (&w->timer, ev_priority (w)); |
2573 | |
3402 | |
2574 | #if EV_USE_INOTIFY |
3403 | #if EV_USE_INOTIFY |
2575 | infy_init (EV_A); |
3404 | infy_init (EV_A); |
2576 | |
3405 | |
2577 | if (fs_fd >= 0) |
3406 | if (fs_fd >= 0) |
2578 | infy_add (EV_A_ w); |
3407 | infy_add (EV_A_ w); |
2579 | else |
3408 | else |
2580 | #endif |
3409 | #endif |
|
|
3410 | { |
2581 | ev_timer_start (EV_A_ &w->timer); |
3411 | ev_timer_again (EV_A_ &w->timer); |
|
|
3412 | ev_unref (EV_A); |
|
|
3413 | } |
2582 | |
3414 | |
2583 | ev_start (EV_A_ (W)w, 1); |
3415 | ev_start (EV_A_ (W)w, 1); |
2584 | |
3416 | |
2585 | EV_FREQUENT_CHECK; |
3417 | EV_FREQUENT_CHECK; |
2586 | } |
3418 | } |
… | |
… | |
2595 | EV_FREQUENT_CHECK; |
3427 | EV_FREQUENT_CHECK; |
2596 | |
3428 | |
2597 | #if EV_USE_INOTIFY |
3429 | #if EV_USE_INOTIFY |
2598 | infy_del (EV_A_ w); |
3430 | infy_del (EV_A_ w); |
2599 | #endif |
3431 | #endif |
|
|
3432 | |
|
|
3433 | if (ev_is_active (&w->timer)) |
|
|
3434 | { |
|
|
3435 | ev_ref (EV_A); |
2600 | ev_timer_stop (EV_A_ &w->timer); |
3436 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3437 | } |
2601 | |
3438 | |
2602 | ev_stop (EV_A_ (W)w); |
3439 | ev_stop (EV_A_ (W)w); |
2603 | |
3440 | |
2604 | EV_FREQUENT_CHECK; |
3441 | EV_FREQUENT_CHECK; |
2605 | } |
3442 | } |
… | |
… | |
2650 | |
3487 | |
2651 | EV_FREQUENT_CHECK; |
3488 | EV_FREQUENT_CHECK; |
2652 | } |
3489 | } |
2653 | #endif |
3490 | #endif |
2654 | |
3491 | |
|
|
3492 | #if EV_PREPARE_ENABLE |
2655 | void |
3493 | void |
2656 | ev_prepare_start (EV_P_ ev_prepare *w) |
3494 | ev_prepare_start (EV_P_ ev_prepare *w) |
2657 | { |
3495 | { |
2658 | if (expect_false (ev_is_active (w))) |
3496 | if (expect_false (ev_is_active (w))) |
2659 | return; |
3497 | return; |
… | |
… | |
2685 | |
3523 | |
2686 | ev_stop (EV_A_ (W)w); |
3524 | ev_stop (EV_A_ (W)w); |
2687 | |
3525 | |
2688 | EV_FREQUENT_CHECK; |
3526 | EV_FREQUENT_CHECK; |
2689 | } |
3527 | } |
|
|
3528 | #endif |
2690 | |
3529 | |
|
|
3530 | #if EV_CHECK_ENABLE |
2691 | void |
3531 | void |
2692 | ev_check_start (EV_P_ ev_check *w) |
3532 | ev_check_start (EV_P_ ev_check *w) |
2693 | { |
3533 | { |
2694 | if (expect_false (ev_is_active (w))) |
3534 | if (expect_false (ev_is_active (w))) |
2695 | return; |
3535 | return; |
… | |
… | |
2721 | |
3561 | |
2722 | ev_stop (EV_A_ (W)w); |
3562 | ev_stop (EV_A_ (W)w); |
2723 | |
3563 | |
2724 | EV_FREQUENT_CHECK; |
3564 | EV_FREQUENT_CHECK; |
2725 | } |
3565 | } |
|
|
3566 | #endif |
2726 | |
3567 | |
2727 | #if EV_EMBED_ENABLE |
3568 | #if EV_EMBED_ENABLE |
2728 | void noinline |
3569 | void noinline |
2729 | ev_embed_sweep (EV_P_ ev_embed *w) |
3570 | ev_embed_sweep (EV_P_ ev_embed *w) |
2730 | { |
3571 | { |
2731 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3572 | ev_run (w->other, EVRUN_NOWAIT); |
2732 | } |
3573 | } |
2733 | |
3574 | |
2734 | static void |
3575 | static void |
2735 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3576 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2736 | { |
3577 | { |
2737 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3578 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2738 | |
3579 | |
2739 | if (ev_cb (w)) |
3580 | if (ev_cb (w)) |
2740 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3581 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2741 | else |
3582 | else |
2742 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3583 | ev_run (w->other, EVRUN_NOWAIT); |
2743 | } |
3584 | } |
2744 | |
3585 | |
2745 | static void |
3586 | static void |
2746 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3587 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2747 | { |
3588 | { |
2748 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3589 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2749 | |
3590 | |
2750 | { |
3591 | { |
2751 | struct ev_loop *loop = w->other; |
3592 | EV_P = w->other; |
2752 | |
3593 | |
2753 | while (fdchangecnt) |
3594 | while (fdchangecnt) |
2754 | { |
3595 | { |
2755 | fd_reify (EV_A); |
3596 | fd_reify (EV_A); |
2756 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3597 | ev_run (EV_A_ EVRUN_NOWAIT); |
2757 | } |
3598 | } |
2758 | } |
3599 | } |
|
|
3600 | } |
|
|
3601 | |
|
|
3602 | static void |
|
|
3603 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3604 | { |
|
|
3605 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3606 | |
|
|
3607 | ev_embed_stop (EV_A_ w); |
|
|
3608 | |
|
|
3609 | { |
|
|
3610 | EV_P = w->other; |
|
|
3611 | |
|
|
3612 | ev_loop_fork (EV_A); |
|
|
3613 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3614 | } |
|
|
3615 | |
|
|
3616 | ev_embed_start (EV_A_ w); |
2759 | } |
3617 | } |
2760 | |
3618 | |
2761 | #if 0 |
3619 | #if 0 |
2762 | static void |
3620 | static void |
2763 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3621 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2771 | { |
3629 | { |
2772 | if (expect_false (ev_is_active (w))) |
3630 | if (expect_false (ev_is_active (w))) |
2773 | return; |
3631 | return; |
2774 | |
3632 | |
2775 | { |
3633 | { |
2776 | struct ev_loop *loop = w->other; |
3634 | EV_P = w->other; |
2777 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3635 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2778 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3636 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2779 | } |
3637 | } |
2780 | |
3638 | |
2781 | EV_FREQUENT_CHECK; |
3639 | EV_FREQUENT_CHECK; |
2782 | |
3640 | |
… | |
… | |
2785 | |
3643 | |
2786 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3644 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2787 | ev_set_priority (&w->prepare, EV_MINPRI); |
3645 | ev_set_priority (&w->prepare, EV_MINPRI); |
2788 | ev_prepare_start (EV_A_ &w->prepare); |
3646 | ev_prepare_start (EV_A_ &w->prepare); |
2789 | |
3647 | |
|
|
3648 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3649 | ev_fork_start (EV_A_ &w->fork); |
|
|
3650 | |
2790 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3651 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2791 | |
3652 | |
2792 | ev_start (EV_A_ (W)w, 1); |
3653 | ev_start (EV_A_ (W)w, 1); |
2793 | |
3654 | |
2794 | EV_FREQUENT_CHECK; |
3655 | EV_FREQUENT_CHECK; |
… | |
… | |
2801 | if (expect_false (!ev_is_active (w))) |
3662 | if (expect_false (!ev_is_active (w))) |
2802 | return; |
3663 | return; |
2803 | |
3664 | |
2804 | EV_FREQUENT_CHECK; |
3665 | EV_FREQUENT_CHECK; |
2805 | |
3666 | |
2806 | ev_io_stop (EV_A_ &w->io); |
3667 | ev_io_stop (EV_A_ &w->io); |
2807 | ev_prepare_stop (EV_A_ &w->prepare); |
3668 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3669 | ev_fork_stop (EV_A_ &w->fork); |
2808 | |
3670 | |
2809 | ev_stop (EV_A_ (W)w); |
3671 | ev_stop (EV_A_ (W)w); |
2810 | |
3672 | |
2811 | EV_FREQUENT_CHECK; |
3673 | EV_FREQUENT_CHECK; |
2812 | } |
3674 | } |
… | |
… | |
2848 | |
3710 | |
2849 | EV_FREQUENT_CHECK; |
3711 | EV_FREQUENT_CHECK; |
2850 | } |
3712 | } |
2851 | #endif |
3713 | #endif |
2852 | |
3714 | |
2853 | #if EV_ASYNC_ENABLE |
3715 | #if EV_CLEANUP_ENABLE |
2854 | void |
3716 | void |
2855 | ev_async_start (EV_P_ ev_async *w) |
3717 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
2856 | { |
3718 | { |
2857 | if (expect_false (ev_is_active (w))) |
3719 | if (expect_false (ev_is_active (w))) |
2858 | return; |
3720 | return; |
|
|
3721 | |
|
|
3722 | EV_FREQUENT_CHECK; |
|
|
3723 | |
|
|
3724 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3725 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3726 | cleanups [cleanupcnt - 1] = w; |
|
|
3727 | |
|
|
3728 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3729 | ev_unref (EV_A); |
|
|
3730 | EV_FREQUENT_CHECK; |
|
|
3731 | } |
|
|
3732 | |
|
|
3733 | void |
|
|
3734 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3735 | { |
|
|
3736 | clear_pending (EV_A_ (W)w); |
|
|
3737 | if (expect_false (!ev_is_active (w))) |
|
|
3738 | return; |
|
|
3739 | |
|
|
3740 | EV_FREQUENT_CHECK; |
|
|
3741 | ev_ref (EV_A); |
|
|
3742 | |
|
|
3743 | { |
|
|
3744 | int active = ev_active (w); |
|
|
3745 | |
|
|
3746 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3747 | ev_active (cleanups [active - 1]) = active; |
|
|
3748 | } |
|
|
3749 | |
|
|
3750 | ev_stop (EV_A_ (W)w); |
|
|
3751 | |
|
|
3752 | EV_FREQUENT_CHECK; |
|
|
3753 | } |
|
|
3754 | #endif |
|
|
3755 | |
|
|
3756 | #if EV_ASYNC_ENABLE |
|
|
3757 | void |
|
|
3758 | ev_async_start (EV_P_ ev_async *w) |
|
|
3759 | { |
|
|
3760 | if (expect_false (ev_is_active (w))) |
|
|
3761 | return; |
|
|
3762 | |
|
|
3763 | w->sent = 0; |
2859 | |
3764 | |
2860 | evpipe_init (EV_A); |
3765 | evpipe_init (EV_A); |
2861 | |
3766 | |
2862 | EV_FREQUENT_CHECK; |
3767 | EV_FREQUENT_CHECK; |
2863 | |
3768 | |
… | |
… | |
2891 | |
3796 | |
2892 | void |
3797 | void |
2893 | ev_async_send (EV_P_ ev_async *w) |
3798 | ev_async_send (EV_P_ ev_async *w) |
2894 | { |
3799 | { |
2895 | w->sent = 1; |
3800 | w->sent = 1; |
2896 | evpipe_write (EV_A_ &gotasync); |
3801 | evpipe_write (EV_A_ &async_pending); |
2897 | } |
3802 | } |
2898 | #endif |
3803 | #endif |
2899 | |
3804 | |
2900 | /*****************************************************************************/ |
3805 | /*****************************************************************************/ |
2901 | |
3806 | |
… | |
… | |
2911 | once_cb (EV_P_ struct ev_once *once, int revents) |
3816 | once_cb (EV_P_ struct ev_once *once, int revents) |
2912 | { |
3817 | { |
2913 | void (*cb)(int revents, void *arg) = once->cb; |
3818 | void (*cb)(int revents, void *arg) = once->cb; |
2914 | void *arg = once->arg; |
3819 | void *arg = once->arg; |
2915 | |
3820 | |
2916 | ev_io_stop (EV_A_ &once->io); |
3821 | ev_io_stop (EV_A_ &once->io); |
2917 | ev_timer_stop (EV_A_ &once->to); |
3822 | ev_timer_stop (EV_A_ &once->to); |
2918 | ev_free (once); |
3823 | ev_free (once); |
2919 | |
3824 | |
2920 | cb (revents, arg); |
3825 | cb (revents, arg); |
2921 | } |
3826 | } |
2922 | |
3827 | |
2923 | static void |
3828 | static void |
2924 | once_cb_io (EV_P_ ev_io *w, int revents) |
3829 | once_cb_io (EV_P_ ev_io *w, int revents) |
2925 | { |
3830 | { |
2926 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3831 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3832 | |
|
|
3833 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2927 | } |
3834 | } |
2928 | |
3835 | |
2929 | static void |
3836 | static void |
2930 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3837 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2931 | { |
3838 | { |
2932 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3839 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3840 | |
|
|
3841 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2933 | } |
3842 | } |
2934 | |
3843 | |
2935 | void |
3844 | void |
2936 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3845 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2937 | { |
3846 | { |
2938 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3847 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2939 | |
3848 | |
2940 | if (expect_false (!once)) |
3849 | if (expect_false (!once)) |
2941 | { |
3850 | { |
2942 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3851 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2943 | return; |
3852 | return; |
2944 | } |
3853 | } |
2945 | |
3854 | |
2946 | once->cb = cb; |
3855 | once->cb = cb; |
2947 | once->arg = arg; |
3856 | once->arg = arg; |
… | |
… | |
2959 | ev_timer_set (&once->to, timeout, 0.); |
3868 | ev_timer_set (&once->to, timeout, 0.); |
2960 | ev_timer_start (EV_A_ &once->to); |
3869 | ev_timer_start (EV_A_ &once->to); |
2961 | } |
3870 | } |
2962 | } |
3871 | } |
2963 | |
3872 | |
|
|
3873 | /*****************************************************************************/ |
|
|
3874 | |
|
|
3875 | #if EV_WALK_ENABLE |
|
|
3876 | void |
|
|
3877 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3878 | { |
|
|
3879 | int i, j; |
|
|
3880 | ev_watcher_list *wl, *wn; |
|
|
3881 | |
|
|
3882 | if (types & (EV_IO | EV_EMBED)) |
|
|
3883 | for (i = 0; i < anfdmax; ++i) |
|
|
3884 | for (wl = anfds [i].head; wl; ) |
|
|
3885 | { |
|
|
3886 | wn = wl->next; |
|
|
3887 | |
|
|
3888 | #if EV_EMBED_ENABLE |
|
|
3889 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3890 | { |
|
|
3891 | if (types & EV_EMBED) |
|
|
3892 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3893 | } |
|
|
3894 | else |
|
|
3895 | #endif |
|
|
3896 | #if EV_USE_INOTIFY |
|
|
3897 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3898 | ; |
|
|
3899 | else |
|
|
3900 | #endif |
|
|
3901 | if ((ev_io *)wl != &pipe_w) |
|
|
3902 | if (types & EV_IO) |
|
|
3903 | cb (EV_A_ EV_IO, wl); |
|
|
3904 | |
|
|
3905 | wl = wn; |
|
|
3906 | } |
|
|
3907 | |
|
|
3908 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3909 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3910 | #if EV_STAT_ENABLE |
|
|
3911 | /*TODO: timer is not always active*/ |
|
|
3912 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3913 | { |
|
|
3914 | if (types & EV_STAT) |
|
|
3915 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3916 | } |
|
|
3917 | else |
|
|
3918 | #endif |
|
|
3919 | if (types & EV_TIMER) |
|
|
3920 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3921 | |
|
|
3922 | #if EV_PERIODIC_ENABLE |
|
|
3923 | if (types & EV_PERIODIC) |
|
|
3924 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3925 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3926 | #endif |
|
|
3927 | |
|
|
3928 | #if EV_IDLE_ENABLE |
|
|
3929 | if (types & EV_IDLE) |
|
|
3930 | for (j = NUMPRI; i--; ) |
|
|
3931 | for (i = idlecnt [j]; i--; ) |
|
|
3932 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3933 | #endif |
|
|
3934 | |
|
|
3935 | #if EV_FORK_ENABLE |
|
|
3936 | if (types & EV_FORK) |
|
|
3937 | for (i = forkcnt; i--; ) |
|
|
3938 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3939 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3940 | #endif |
|
|
3941 | |
|
|
3942 | #if EV_ASYNC_ENABLE |
|
|
3943 | if (types & EV_ASYNC) |
|
|
3944 | for (i = asynccnt; i--; ) |
|
|
3945 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3946 | #endif |
|
|
3947 | |
|
|
3948 | #if EV_PREPARE_ENABLE |
|
|
3949 | if (types & EV_PREPARE) |
|
|
3950 | for (i = preparecnt; i--; ) |
|
|
3951 | # if EV_EMBED_ENABLE |
|
|
3952 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3953 | # endif |
|
|
3954 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3955 | #endif |
|
|
3956 | |
|
|
3957 | #if EV_CHECK_ENABLE |
|
|
3958 | if (types & EV_CHECK) |
|
|
3959 | for (i = checkcnt; i--; ) |
|
|
3960 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3961 | #endif |
|
|
3962 | |
|
|
3963 | #if EV_SIGNAL_ENABLE |
|
|
3964 | if (types & EV_SIGNAL) |
|
|
3965 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3966 | for (wl = signals [i].head; wl; ) |
|
|
3967 | { |
|
|
3968 | wn = wl->next; |
|
|
3969 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3970 | wl = wn; |
|
|
3971 | } |
|
|
3972 | #endif |
|
|
3973 | |
|
|
3974 | #if EV_CHILD_ENABLE |
|
|
3975 | if (types & EV_CHILD) |
|
|
3976 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3977 | for (wl = childs [i]; wl; ) |
|
|
3978 | { |
|
|
3979 | wn = wl->next; |
|
|
3980 | cb (EV_A_ EV_CHILD, wl); |
|
|
3981 | wl = wn; |
|
|
3982 | } |
|
|
3983 | #endif |
|
|
3984 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3985 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3986 | } |
|
|
3987 | #endif |
|
|
3988 | |
2964 | #if EV_MULTIPLICITY |
3989 | #if EV_MULTIPLICITY |
2965 | #include "ev_wrap.h" |
3990 | #include "ev_wrap.h" |
2966 | #endif |
3991 | #endif |
2967 | |
3992 | |
2968 | #ifdef __cplusplus |
3993 | EV_CPP(}) |
2969 | } |
|
|
2970 | #endif |
|
|
2971 | |
3994 | |