1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 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 |
|
|
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
55 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
|
|
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
66 | # endif |
63 | |
67 | |
64 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
67 | # endif |
71 | # endif |
68 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
70 | # endif |
74 | # endif |
71 | # else |
75 | # else |
72 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
73 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
74 | # endif |
78 | # endif |
75 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
77 | # endif |
81 | # endif |
78 | # endif |
82 | # endif |
79 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
80 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
81 | # if HAVE_NANOSLEEP |
|
|
82 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
83 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
84 | # 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 |
85 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
86 | # endif |
100 | # endif |
87 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
88 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
90 | # define EV_USE_SELECT 1 |
|
|
91 | # else |
|
|
92 | # define EV_USE_SELECT 0 |
|
|
93 | # endif |
105 | # endif |
94 | # endif |
|
|
95 | |
|
|
96 | # ifndef EV_USE_POLL |
|
|
97 | # if HAVE_POLL && HAVE_POLL_H |
|
|
98 | # define EV_USE_POLL 1 |
|
|
99 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
100 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
101 | # endif |
|
|
102 | # endif |
109 | # endif |
103 | |
110 | |
104 | # ifndef EV_USE_EPOLL |
|
|
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
106 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
107 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
108 | # define EV_USE_EPOLL 0 |
|
|
109 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
110 | # endif |
118 | # endif |
111 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
112 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
114 | # define EV_USE_KQUEUE 1 |
|
|
115 | # else |
|
|
116 | # define EV_USE_KQUEUE 0 |
|
|
117 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
118 | # endif |
127 | # endif |
119 | |
128 | |
120 | # ifndef EV_USE_PORT |
|
|
121 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
122 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
123 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
124 | # define EV_USE_PORT 0 |
|
|
125 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
126 | # endif |
136 | # endif |
127 | |
137 | |
128 | # ifndef EV_USE_INOTIFY |
|
|
129 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
130 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
131 | # else |
|
|
132 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
133 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
134 | # endif |
145 | # endif |
135 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
136 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
137 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
138 | # define EV_USE_EVENTFD 1 |
|
|
139 | # else |
|
|
140 | # define EV_USE_EVENTFD 0 |
|
|
141 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
|
|
154 | # endif |
|
|
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 |
142 | # endif |
163 | # endif |
143 | |
164 | |
144 | #endif |
165 | #endif |
145 | |
166 | |
146 | #include <math.h> |
|
|
147 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
148 | #include <fcntl.h> |
169 | #include <fcntl.h> |
149 | #include <stddef.h> |
170 | #include <stddef.h> |
150 | |
171 | |
151 | #include <stdio.h> |
172 | #include <stdio.h> |
152 | |
173 | |
153 | #include <assert.h> |
174 | #include <assert.h> |
154 | #include <errno.h> |
175 | #include <errno.h> |
155 | #include <sys/types.h> |
176 | #include <sys/types.h> |
156 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
157 | |
179 | |
158 | #include <signal.h> |
180 | #include <signal.h> |
159 | |
181 | |
160 | #ifdef EV_H |
182 | #ifdef EV_H |
161 | # include EV_H |
183 | # include EV_H |
162 | #else |
184 | #else |
163 | # include "ev.h" |
185 | # include "ev.h" |
164 | #endif |
186 | #endif |
|
|
187 | |
|
|
188 | EV_CPP(extern "C" {) |
165 | |
189 | |
166 | #ifndef _WIN32 |
190 | #ifndef _WIN32 |
167 | # include <sys/time.h> |
191 | # include <sys/time.h> |
168 | # include <sys/wait.h> |
192 | # include <sys/wait.h> |
169 | # include <unistd.h> |
193 | # include <unistd.h> |
… | |
… | |
172 | # define WIN32_LEAN_AND_MEAN |
196 | # define WIN32_LEAN_AND_MEAN |
173 | # include <windows.h> |
197 | # include <windows.h> |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
176 | # endif |
200 | # endif |
|
|
201 | # undef EV_AVOID_STDIO |
177 | #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 |
178 | |
211 | |
179 | /* 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 */ |
|
|
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 |
180 | |
245 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
246 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
247 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
184 | # else |
249 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
186 | # endif |
251 | # endif |
187 | #endif |
252 | #endif |
188 | |
253 | |
189 | #ifndef EV_USE_MONOTONIC |
254 | #ifndef EV_USE_MONOTONIC |
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
191 | # define EV_USE_MONOTONIC 1 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
192 | # else |
257 | # else |
193 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
259 | # endif |
195 | #endif |
260 | #endif |
196 | |
261 | |
197 | #ifndef EV_USE_REALTIME |
262 | #ifndef EV_USE_REALTIME |
198 | # define EV_USE_REALTIME 0 |
263 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
264 | #endif |
200 | |
265 | |
201 | #ifndef EV_USE_NANOSLEEP |
266 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
267 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
268 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
204 | # else |
269 | # else |
205 | # define EV_USE_NANOSLEEP 0 |
270 | # define EV_USE_NANOSLEEP 0 |
206 | # endif |
271 | # endif |
207 | #endif |
272 | #endif |
208 | |
273 | |
209 | #ifndef EV_USE_SELECT |
274 | #ifndef EV_USE_SELECT |
210 | # define EV_USE_SELECT 1 |
275 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
211 | #endif |
276 | #endif |
212 | |
277 | |
213 | #ifndef EV_USE_POLL |
278 | #ifndef EV_USE_POLL |
214 | # ifdef _WIN32 |
279 | # ifdef _WIN32 |
215 | # define EV_USE_POLL 0 |
280 | # define EV_USE_POLL 0 |
216 | # else |
281 | # else |
217 | # define EV_USE_POLL 1 |
282 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
218 | # endif |
283 | # endif |
219 | #endif |
284 | #endif |
220 | |
285 | |
221 | #ifndef EV_USE_EPOLL |
286 | #ifndef EV_USE_EPOLL |
222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
287 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
223 | # define EV_USE_EPOLL 1 |
288 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
224 | # else |
289 | # else |
225 | # define EV_USE_EPOLL 0 |
290 | # define EV_USE_EPOLL 0 |
226 | # endif |
291 | # endif |
227 | #endif |
292 | #endif |
228 | |
293 | |
… | |
… | |
234 | # define EV_USE_PORT 0 |
299 | # define EV_USE_PORT 0 |
235 | #endif |
300 | #endif |
236 | |
301 | |
237 | #ifndef EV_USE_INOTIFY |
302 | #ifndef EV_USE_INOTIFY |
238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
239 | # define EV_USE_INOTIFY 1 |
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
240 | # else |
305 | # else |
241 | # define EV_USE_INOTIFY 0 |
306 | # define EV_USE_INOTIFY 0 |
242 | # endif |
307 | # endif |
243 | #endif |
308 | #endif |
244 | |
309 | |
245 | #ifndef EV_PID_HASHSIZE |
310 | #ifndef EV_PID_HASHSIZE |
246 | # if EV_MINIMAL |
311 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
247 | # define EV_PID_HASHSIZE 1 |
|
|
248 | # else |
|
|
249 | # define EV_PID_HASHSIZE 16 |
|
|
250 | # endif |
|
|
251 | #endif |
312 | #endif |
252 | |
313 | |
253 | #ifndef EV_INOTIFY_HASHSIZE |
314 | #ifndef EV_INOTIFY_HASHSIZE |
254 | # if EV_MINIMAL |
315 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
255 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
256 | # else |
|
|
257 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
258 | # endif |
|
|
259 | #endif |
316 | #endif |
260 | |
317 | |
261 | #ifndef EV_USE_EVENTFD |
318 | #ifndef EV_USE_EVENTFD |
262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
263 | # define EV_USE_EVENTFD 1 |
320 | # define EV_USE_EVENTFD EV_FEATURE_OS |
264 | # else |
321 | # else |
265 | # define EV_USE_EVENTFD 0 |
322 | # define EV_USE_EVENTFD 0 |
|
|
323 | # endif |
|
|
324 | #endif |
|
|
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 |
266 | # endif |
331 | # endif |
267 | #endif |
332 | #endif |
268 | |
333 | |
269 | #if 0 /* debugging */ |
334 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
335 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
336 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
337 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
338 | #endif |
274 | |
339 | |
275 | #ifndef EV_VERIFY |
340 | #ifndef EV_VERIFY |
276 | # define EV_VERIFY !EV_MINIMAL |
341 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
277 | #endif |
342 | #endif |
278 | |
343 | |
279 | #ifndef EV_USE_4HEAP |
344 | #ifndef EV_USE_4HEAP |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
345 | # define EV_USE_4HEAP EV_FEATURE_DATA |
281 | #endif |
346 | #endif |
282 | |
347 | |
283 | #ifndef EV_HEAP_CACHE_AT |
348 | #ifndef EV_HEAP_CACHE_AT |
284 | # 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 |
285 | #endif |
364 | #endif |
286 | |
365 | |
287 | /* 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 |
288 | |
373 | |
289 | #ifndef CLOCK_MONOTONIC |
374 | #ifndef CLOCK_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
291 | # define EV_USE_MONOTONIC 0 |
376 | # define EV_USE_MONOTONIC 0 |
292 | #endif |
377 | #endif |
… | |
… | |
300 | # undef EV_USE_INOTIFY |
385 | # undef EV_USE_INOTIFY |
301 | # define EV_USE_INOTIFY 0 |
386 | # define EV_USE_INOTIFY 0 |
302 | #endif |
387 | #endif |
303 | |
388 | |
304 | #if !EV_USE_NANOSLEEP |
389 | #if !EV_USE_NANOSLEEP |
305 | # ifndef _WIN32 |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
391 | # if !defined(_WIN32) && !defined(__hpux) |
306 | # include <sys/select.h> |
392 | # include <sys/select.h> |
307 | # endif |
393 | # endif |
308 | #endif |
394 | #endif |
309 | |
395 | |
310 | #if EV_USE_INOTIFY |
396 | #if EV_USE_INOTIFY |
311 | # include <sys/utsname.h> |
|
|
312 | # include <sys/statfs.h> |
397 | # include <sys/statfs.h> |
313 | # include <sys/inotify.h> |
398 | # include <sys/inotify.h> |
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
315 | # ifndef IN_DONT_FOLLOW |
400 | # ifndef IN_DONT_FOLLOW |
316 | # undef EV_USE_INOTIFY |
401 | # undef EV_USE_INOTIFY |
… | |
… | |
320 | |
405 | |
321 | #if EV_SELECT_IS_WINSOCKET |
406 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
407 | # include <winsock.h> |
323 | #endif |
408 | #endif |
324 | |
409 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
410 | #if EV_USE_EVENTFD |
335 | /* 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 */ |
336 | # include <stdint.h> |
412 | # include <stdint.h> |
337 | # ifdef __cplusplus |
413 | # ifndef EFD_NONBLOCK |
338 | extern "C" { |
414 | # define EFD_NONBLOCK O_NONBLOCK |
339 | # endif |
415 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
416 | # ifndef EFD_CLOEXEC |
341 | # ifdef __cplusplus |
417 | # ifdef O_CLOEXEC |
342 | } |
418 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
419 | # else |
|
|
420 | # define EFD_CLOEXEC 02000000 |
|
|
421 | # endif |
343 | # 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 | }; |
344 | #endif |
446 | #endif |
345 | |
447 | |
346 | /**/ |
448 | /**/ |
347 | |
449 | |
348 | #if EV_VERIFY >= 3 |
450 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
350 | #else |
452 | #else |
351 | # define EV_FREQUENT_CHECK do { } while (0) |
453 | # define EV_FREQUENT_CHECK do { } while (0) |
352 | #endif |
454 | #endif |
353 | |
455 | |
354 | /* |
456 | /* |
355 | * This is used to avoid floating point rounding problems. |
457 | * This is used to work around floating point rounding problems. |
356 | * It is added to ev_rt_now when scheduling periodics |
|
|
357 | * to ensure progress, time-wise, even when rounding |
|
|
358 | * errors are against us. |
|
|
359 | * This value is good at least till the year 4000. |
458 | * This value is good at least till the year 4000. |
360 | * Better solutions welcome. |
|
|
361 | */ |
459 | */ |
362 | #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 */ |
363 | |
462 | |
364 | #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) */ |
365 | #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) */ |
366 | /*#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) |
367 | |
468 | |
368 | #if __GNUC__ >= 4 |
469 | #if __GNUC__ >= 4 |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
370 | # define noinline __attribute__ ((noinline)) |
471 | # define noinline __attribute__ ((noinline)) |
371 | #else |
472 | #else |
… | |
… | |
378 | |
479 | |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
380 | #define expect_true(expr) expect ((expr) != 0, 1) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
381 | #define inline_size static inline |
482 | #define inline_size static inline |
382 | |
483 | |
383 | #if EV_MINIMAL |
484 | #if EV_FEATURE_CODE |
|
|
485 | # define inline_speed static inline |
|
|
486 | #else |
384 | # 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) |
385 | #else |
494 | #else |
386 | # define inline_speed static inline |
|
|
387 | #endif |
|
|
388 | |
|
|
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
495 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
496 | #endif |
391 | |
497 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
498 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
499 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
500 | |
395 | typedef ev_watcher *W; |
501 | typedef ev_watcher *W; |
… | |
… | |
397 | typedef ev_watcher_time *WT; |
503 | typedef ev_watcher_time *WT; |
398 | |
504 | |
399 | #define ev_active(w) ((W)(w))->active |
505 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
506 | #define ev_at(w) ((WT)(w))->at |
401 | |
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 | |
402 | #if EV_USE_MONOTONIC |
514 | #if EV_USE_MONOTONIC |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
405 | 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) |
406 | #endif |
526 | #endif |
407 | |
527 | |
408 | #ifdef _WIN32 |
528 | #ifdef _WIN32 |
409 | # include "ev_win32.c" |
529 | # include "ev_win32.c" |
410 | #endif |
530 | #endif |
411 | |
531 | |
412 | /*****************************************************************************/ |
532 | /*****************************************************************************/ |
|
|
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 |
413 | |
631 | |
414 | static void (*syserr_cb)(const char *msg); |
632 | static void (*syserr_cb)(const char *msg); |
415 | |
633 | |
416 | void |
634 | void |
417 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
427 | |
645 | |
428 | if (syserr_cb) |
646 | if (syserr_cb) |
429 | syserr_cb (msg); |
647 | syserr_cb (msg); |
430 | else |
648 | else |
431 | { |
649 | { |
|
|
650 | #if EV_AVOID_STDIO |
|
|
651 | ev_printerr (msg); |
|
|
652 | ev_printerr (": "); |
|
|
653 | ev_printerr (strerror (errno)); |
|
|
654 | ev_printerr ("\n"); |
|
|
655 | #else |
432 | perror (msg); |
656 | perror (msg); |
|
|
657 | #endif |
433 | abort (); |
658 | abort (); |
434 | } |
659 | } |
435 | } |
660 | } |
436 | |
661 | |
437 | static void * |
662 | static void * |
438 | ev_realloc_emul (void *ptr, long size) |
663 | ev_realloc_emul (void *ptr, long size) |
439 | { |
664 | { |
|
|
665 | #if __GLIBC__ |
|
|
666 | return realloc (ptr, size); |
|
|
667 | #else |
440 | /* some systems, notably openbsd and darwin, fail to properly |
668 | /* some systems, notably openbsd and darwin, fail to properly |
441 | * 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 |
442 | * the single unix specification, so work around them here. |
670 | * the single unix specification, so work around them here. |
443 | */ |
671 | */ |
444 | |
672 | |
445 | if (size) |
673 | if (size) |
446 | return realloc (ptr, size); |
674 | return realloc (ptr, size); |
447 | |
675 | |
448 | free (ptr); |
676 | free (ptr); |
449 | return 0; |
677 | return 0; |
|
|
678 | #endif |
450 | } |
679 | } |
451 | |
680 | |
452 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
453 | |
682 | |
454 | void |
683 | void |
… | |
… | |
462 | { |
691 | { |
463 | ptr = alloc (ptr, size); |
692 | ptr = alloc (ptr, size); |
464 | |
693 | |
465 | if (!ptr && size) |
694 | if (!ptr && size) |
466 | { |
695 | { |
|
|
696 | #if EV_AVOID_STDIO |
|
|
697 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
698 | #else |
467 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
699 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
700 | #endif |
468 | abort (); |
701 | abort (); |
469 | } |
702 | } |
470 | |
703 | |
471 | return ptr; |
704 | return ptr; |
472 | } |
705 | } |
… | |
… | |
474 | #define ev_malloc(size) ev_realloc (0, (size)) |
707 | #define ev_malloc(size) ev_realloc (0, (size)) |
475 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
708 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
476 | |
709 | |
477 | /*****************************************************************************/ |
710 | /*****************************************************************************/ |
478 | |
711 | |
|
|
712 | /* set in reify when reification needed */ |
|
|
713 | #define EV_ANFD_REIFY 1 |
|
|
714 | |
|
|
715 | /* file descriptor info structure */ |
479 | typedef struct |
716 | typedef struct |
480 | { |
717 | { |
481 | WL head; |
718 | WL head; |
482 | unsigned char events; |
719 | unsigned char events; /* the events watched for */ |
483 | unsigned char reify; |
720 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
484 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
721 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
485 | unsigned char unused; |
722 | unsigned char unused; |
486 | #if EV_USE_EPOLL |
723 | #if EV_USE_EPOLL |
487 | unsigned int egen; /* generation counter to counter epoll bugs */ |
724 | unsigned int egen; /* generation counter to counter epoll bugs */ |
488 | #endif |
725 | #endif |
489 | #if EV_SELECT_IS_WINSOCKET |
726 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
490 | SOCKET handle; |
727 | SOCKET handle; |
491 | #endif |
728 | #endif |
|
|
729 | #if EV_USE_IOCP |
|
|
730 | OVERLAPPED or, ow; |
|
|
731 | #endif |
492 | } ANFD; |
732 | } ANFD; |
493 | |
733 | |
|
|
734 | /* stores the pending event set for a given watcher */ |
494 | typedef struct |
735 | typedef struct |
495 | { |
736 | { |
496 | W w; |
737 | W w; |
497 | int events; |
738 | int events; /* the pending event set for the given watcher */ |
498 | } ANPENDING; |
739 | } ANPENDING; |
499 | |
740 | |
500 | #if EV_USE_INOTIFY |
741 | #if EV_USE_INOTIFY |
501 | /* hash table entry per inotify-id */ |
742 | /* hash table entry per inotify-id */ |
502 | typedef struct |
743 | typedef struct |
… | |
… | |
505 | } ANFS; |
746 | } ANFS; |
506 | #endif |
747 | #endif |
507 | |
748 | |
508 | /* Heap Entry */ |
749 | /* Heap Entry */ |
509 | #if EV_HEAP_CACHE_AT |
750 | #if EV_HEAP_CACHE_AT |
|
|
751 | /* a heap element */ |
510 | typedef struct { |
752 | typedef struct { |
511 | ev_tstamp at; |
753 | ev_tstamp at; |
512 | WT w; |
754 | WT w; |
513 | } ANHE; |
755 | } ANHE; |
514 | |
756 | |
515 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
757 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
516 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
758 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
517 | #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 */ |
518 | #else |
760 | #else |
|
|
761 | /* a heap element */ |
519 | typedef WT ANHE; |
762 | typedef WT ANHE; |
520 | |
763 | |
521 | #define ANHE_w(he) (he) |
764 | #define ANHE_w(he) (he) |
522 | #define ANHE_at(he) (he)->at |
765 | #define ANHE_at(he) (he)->at |
523 | #define ANHE_at_cache(he) |
766 | #define ANHE_at_cache(he) |
… | |
… | |
547 | |
790 | |
548 | static int ev_default_loop_ptr; |
791 | static int ev_default_loop_ptr; |
549 | |
792 | |
550 | #endif |
793 | #endif |
551 | |
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 | |
552 | /*****************************************************************************/ |
807 | /*****************************************************************************/ |
553 | |
808 | |
|
|
809 | #ifndef EV_HAVE_EV_TIME |
554 | ev_tstamp |
810 | ev_tstamp |
555 | ev_time (void) |
811 | ev_time (void) |
556 | { |
812 | { |
557 | #if EV_USE_REALTIME |
813 | #if EV_USE_REALTIME |
|
|
814 | if (expect_true (have_realtime)) |
|
|
815 | { |
558 | struct timespec ts; |
816 | struct timespec ts; |
559 | clock_gettime (CLOCK_REALTIME, &ts); |
817 | clock_gettime (CLOCK_REALTIME, &ts); |
560 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
818 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
561 | #else |
819 | } |
|
|
820 | #endif |
|
|
821 | |
562 | struct timeval tv; |
822 | struct timeval tv; |
563 | gettimeofday (&tv, 0); |
823 | gettimeofday (&tv, 0); |
564 | return tv.tv_sec + tv.tv_usec * 1e-6; |
824 | return tv.tv_sec + tv.tv_usec * 1e-6; |
565 | #endif |
|
|
566 | } |
825 | } |
|
|
826 | #endif |
567 | |
827 | |
568 | ev_tstamp inline_size |
828 | inline_size ev_tstamp |
569 | get_clock (void) |
829 | get_clock (void) |
570 | { |
830 | { |
571 | #if EV_USE_MONOTONIC |
831 | #if EV_USE_MONOTONIC |
572 | if (expect_true (have_monotonic)) |
832 | if (expect_true (have_monotonic)) |
573 | { |
833 | { |
… | |
… | |
594 | if (delay > 0.) |
854 | if (delay > 0.) |
595 | { |
855 | { |
596 | #if EV_USE_NANOSLEEP |
856 | #if EV_USE_NANOSLEEP |
597 | struct timespec ts; |
857 | struct timespec ts; |
598 | |
858 | |
599 | ts.tv_sec = (time_t)delay; |
859 | EV_TS_SET (ts, delay); |
600 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
601 | |
|
|
602 | nanosleep (&ts, 0); |
860 | nanosleep (&ts, 0); |
603 | #elif defined(_WIN32) |
861 | #elif defined(_WIN32) |
604 | Sleep ((unsigned long)(delay * 1e3)); |
862 | Sleep ((unsigned long)(delay * 1e3)); |
605 | #else |
863 | #else |
606 | struct timeval tv; |
864 | struct timeval tv; |
607 | |
865 | |
608 | tv.tv_sec = (time_t)delay; |
|
|
609 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
610 | |
|
|
611 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
866 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
612 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
867 | /* something not guaranteed by newer posix versions, but guaranteed */ |
613 | /* by older ones */ |
868 | /* by older ones */ |
|
|
869 | EV_TV_SET (tv, delay); |
614 | select (0, 0, 0, 0, &tv); |
870 | select (0, 0, 0, 0, &tv); |
615 | #endif |
871 | #endif |
616 | } |
872 | } |
617 | } |
873 | } |
618 | |
874 | |
|
|
875 | inline_speed int |
|
|
876 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
877 | { |
|
|
878 | int ms = timeout * 1000. + .999999; |
|
|
879 | |
|
|
880 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
|
|
881 | } |
|
|
882 | |
619 | /*****************************************************************************/ |
883 | /*****************************************************************************/ |
620 | |
884 | |
621 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
885 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
622 | |
886 | |
623 | int inline_size |
887 | /* find a suitable new size for the given array, */ |
|
|
888 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
889 | inline_size int |
624 | array_nextsize (int elem, int cur, int cnt) |
890 | array_nextsize (int elem, int cur, int cnt) |
625 | { |
891 | { |
626 | int ncur = cur + 1; |
892 | int ncur = cur + 1; |
627 | |
893 | |
628 | do |
894 | do |
… | |
… | |
669 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
935 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
670 | } |
936 | } |
671 | #endif |
937 | #endif |
672 | |
938 | |
673 | #define array_free(stem, idx) \ |
939 | #define array_free(stem, idx) \ |
674 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
940 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
675 | |
941 | |
676 | /*****************************************************************************/ |
942 | /*****************************************************************************/ |
|
|
943 | |
|
|
944 | /* dummy callback for pending events */ |
|
|
945 | static void noinline |
|
|
946 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
947 | { |
|
|
948 | } |
677 | |
949 | |
678 | void noinline |
950 | void noinline |
679 | ev_feed_event (EV_P_ void *w, int revents) |
951 | ev_feed_event (EV_P_ void *w, int revents) |
680 | { |
952 | { |
681 | W w_ = (W)w; |
953 | W w_ = (W)w; |
… | |
… | |
690 | pendings [pri][w_->pending - 1].w = w_; |
962 | pendings [pri][w_->pending - 1].w = w_; |
691 | pendings [pri][w_->pending - 1].events = revents; |
963 | pendings [pri][w_->pending - 1].events = revents; |
692 | } |
964 | } |
693 | } |
965 | } |
694 | |
966 | |
695 | void inline_speed |
967 | inline_speed void |
|
|
968 | feed_reverse (EV_P_ W w) |
|
|
969 | { |
|
|
970 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
971 | rfeeds [rfeedcnt++] = w; |
|
|
972 | } |
|
|
973 | |
|
|
974 | inline_size void |
|
|
975 | feed_reverse_done (EV_P_ int revents) |
|
|
976 | { |
|
|
977 | do |
|
|
978 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
979 | while (rfeedcnt); |
|
|
980 | } |
|
|
981 | |
|
|
982 | inline_speed void |
696 | queue_events (EV_P_ W *events, int eventcnt, int type) |
983 | queue_events (EV_P_ W *events, int eventcnt, int type) |
697 | { |
984 | { |
698 | int i; |
985 | int i; |
699 | |
986 | |
700 | for (i = 0; i < eventcnt; ++i) |
987 | for (i = 0; i < eventcnt; ++i) |
701 | ev_feed_event (EV_A_ events [i], type); |
988 | ev_feed_event (EV_A_ events [i], type); |
702 | } |
989 | } |
703 | |
990 | |
704 | /*****************************************************************************/ |
991 | /*****************************************************************************/ |
705 | |
992 | |
706 | void inline_speed |
993 | inline_speed void |
707 | fd_event (EV_P_ int fd, int revents) |
994 | fd_event_nocheck (EV_P_ int fd, int revents) |
708 | { |
995 | { |
709 | ANFD *anfd = anfds + fd; |
996 | ANFD *anfd = anfds + fd; |
710 | ev_io *w; |
997 | ev_io *w; |
711 | |
998 | |
712 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
999 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
716 | if (ev) |
1003 | if (ev) |
717 | ev_feed_event (EV_A_ (W)w, ev); |
1004 | ev_feed_event (EV_A_ (W)w, ev); |
718 | } |
1005 | } |
719 | } |
1006 | } |
720 | |
1007 | |
|
|
1008 | /* do not submit kernel events for fds that have reify set */ |
|
|
1009 | /* because that means they changed while we were polling for new events */ |
|
|
1010 | inline_speed void |
|
|
1011 | fd_event (EV_P_ int fd, int revents) |
|
|
1012 | { |
|
|
1013 | ANFD *anfd = anfds + fd; |
|
|
1014 | |
|
|
1015 | if (expect_true (!anfd->reify)) |
|
|
1016 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1017 | } |
|
|
1018 | |
721 | void |
1019 | void |
722 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1020 | ev_feed_fd_event (EV_P_ int fd, int revents) |
723 | { |
1021 | { |
724 | if (fd >= 0 && fd < anfdmax) |
1022 | if (fd >= 0 && fd < anfdmax) |
725 | fd_event (EV_A_ fd, revents); |
1023 | fd_event_nocheck (EV_A_ fd, revents); |
726 | } |
1024 | } |
727 | |
1025 | |
728 | void inline_size |
1026 | /* make sure the external fd watch events are in-sync */ |
|
|
1027 | /* with the kernel/libev internal state */ |
|
|
1028 | inline_size void |
729 | fd_reify (EV_P) |
1029 | fd_reify (EV_P) |
730 | { |
1030 | { |
731 | int i; |
1031 | int i; |
|
|
1032 | |
|
|
1033 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1034 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1035 | { |
|
|
1036 | int fd = fdchanges [i]; |
|
|
1037 | ANFD *anfd = anfds + fd; |
|
|
1038 | |
|
|
1039 | if (anfd->reify & EV__IOFDSET) |
|
|
1040 | { |
|
|
1041 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1042 | |
|
|
1043 | if (handle != anfd->handle) |
|
|
1044 | { |
|
|
1045 | unsigned long arg; |
|
|
1046 | |
|
|
1047 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1048 | |
|
|
1049 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1050 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1051 | anfd->events = 0; |
|
|
1052 | anfd->handle = handle; |
|
|
1053 | } |
|
|
1054 | } |
|
|
1055 | } |
|
|
1056 | #endif |
732 | |
1057 | |
733 | for (i = 0; i < fdchangecnt; ++i) |
1058 | for (i = 0; i < fdchangecnt; ++i) |
734 | { |
1059 | { |
735 | int fd = fdchanges [i]; |
1060 | int fd = fdchanges [i]; |
736 | ANFD *anfd = anfds + fd; |
1061 | ANFD *anfd = anfds + fd; |
737 | ev_io *w; |
1062 | ev_io *w; |
738 | |
1063 | |
739 | unsigned char events = 0; |
1064 | unsigned char o_events = anfd->events; |
|
|
1065 | unsigned char o_reify = anfd->reify; |
740 | |
1066 | |
741 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1067 | anfd->reify = 0; |
742 | events |= (unsigned char)w->events; |
|
|
743 | |
1068 | |
744 | #if EV_SELECT_IS_WINSOCKET |
1069 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
745 | if (events) |
|
|
746 | { |
1070 | { |
747 | unsigned long arg; |
1071 | anfd->events = 0; |
748 | #ifdef EV_FD_TO_WIN32_HANDLE |
1072 | |
749 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1073 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
750 | #else |
1074 | anfd->events |= (unsigned char)w->events; |
751 | anfd->handle = _get_osfhandle (fd); |
1075 | |
752 | #endif |
1076 | if (o_events != anfd->events) |
753 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1077 | o_reify = EV__IOFDSET; /* actually |= */ |
754 | } |
1078 | } |
755 | #endif |
|
|
756 | |
1079 | |
757 | { |
1080 | if (o_reify & EV__IOFDSET) |
758 | unsigned char o_events = anfd->events; |
|
|
759 | unsigned char o_reify = anfd->reify; |
|
|
760 | |
|
|
761 | anfd->reify = 0; |
|
|
762 | anfd->events = events; |
|
|
763 | |
|
|
764 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
765 | backend_modify (EV_A_ fd, o_events, events); |
1081 | backend_modify (EV_A_ fd, o_events, anfd->events); |
766 | } |
|
|
767 | } |
1082 | } |
768 | |
1083 | |
769 | fdchangecnt = 0; |
1084 | fdchangecnt = 0; |
770 | } |
1085 | } |
771 | |
1086 | |
772 | void inline_size |
1087 | /* something about the given fd changed */ |
|
|
1088 | inline_size void |
773 | fd_change (EV_P_ int fd, int flags) |
1089 | fd_change (EV_P_ int fd, int flags) |
774 | { |
1090 | { |
775 | unsigned char reify = anfds [fd].reify; |
1091 | unsigned char reify = anfds [fd].reify; |
776 | anfds [fd].reify |= flags; |
1092 | anfds [fd].reify |= flags; |
777 | |
1093 | |
… | |
… | |
781 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1097 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
782 | fdchanges [fdchangecnt - 1] = fd; |
1098 | fdchanges [fdchangecnt - 1] = fd; |
783 | } |
1099 | } |
784 | } |
1100 | } |
785 | |
1101 | |
786 | void inline_speed |
1102 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1103 | inline_speed void |
787 | fd_kill (EV_P_ int fd) |
1104 | fd_kill (EV_P_ int fd) |
788 | { |
1105 | { |
789 | ev_io *w; |
1106 | ev_io *w; |
790 | |
1107 | |
791 | while ((w = (ev_io *)anfds [fd].head)) |
1108 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
793 | ev_io_stop (EV_A_ w); |
1110 | ev_io_stop (EV_A_ w); |
794 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1111 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
795 | } |
1112 | } |
796 | } |
1113 | } |
797 | |
1114 | |
798 | int inline_size |
1115 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1116 | inline_size int |
799 | fd_valid (int fd) |
1117 | fd_valid (int fd) |
800 | { |
1118 | { |
801 | #ifdef _WIN32 |
1119 | #ifdef _WIN32 |
802 | return _get_osfhandle (fd) != -1; |
1120 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
803 | #else |
1121 | #else |
804 | return fcntl (fd, F_GETFD) != -1; |
1122 | return fcntl (fd, F_GETFD) != -1; |
805 | #endif |
1123 | #endif |
806 | } |
1124 | } |
807 | |
1125 | |
… | |
… | |
825 | |
1143 | |
826 | for (fd = anfdmax; fd--; ) |
1144 | for (fd = anfdmax; fd--; ) |
827 | if (anfds [fd].events) |
1145 | if (anfds [fd].events) |
828 | { |
1146 | { |
829 | fd_kill (EV_A_ fd); |
1147 | fd_kill (EV_A_ fd); |
830 | return; |
1148 | break; |
831 | } |
1149 | } |
832 | } |
1150 | } |
833 | |
1151 | |
834 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1152 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
835 | static void noinline |
1153 | static void noinline |
… | |
… | |
840 | for (fd = 0; fd < anfdmax; ++fd) |
1158 | for (fd = 0; fd < anfdmax; ++fd) |
841 | if (anfds [fd].events) |
1159 | if (anfds [fd].events) |
842 | { |
1160 | { |
843 | anfds [fd].events = 0; |
1161 | anfds [fd].events = 0; |
844 | anfds [fd].emask = 0; |
1162 | anfds [fd].emask = 0; |
845 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1163 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
846 | } |
1164 | } |
847 | } |
1165 | } |
848 | |
1166 | |
|
|
1167 | /* used to prepare libev internal fd's */ |
|
|
1168 | /* this is not fork-safe */ |
|
|
1169 | inline_speed void |
|
|
1170 | fd_intern (int fd) |
|
|
1171 | { |
|
|
1172 | #ifdef _WIN32 |
|
|
1173 | unsigned long arg = 1; |
|
|
1174 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1175 | #else |
|
|
1176 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1177 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1178 | #endif |
|
|
1179 | } |
|
|
1180 | |
849 | /*****************************************************************************/ |
1181 | /*****************************************************************************/ |
850 | |
1182 | |
851 | /* |
1183 | /* |
852 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1184 | * the heap functions want a real array index. array index 0 is guaranteed to not |
853 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1185 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
854 | * the branching factor of the d-tree. |
1186 | * the branching factor of the d-tree. |
855 | */ |
1187 | */ |
856 | |
1188 | |
857 | /* |
1189 | /* |
… | |
… | |
866 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1198 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
867 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1199 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
868 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1200 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
869 | |
1201 | |
870 | /* away from the root */ |
1202 | /* away from the root */ |
871 | void inline_speed |
1203 | inline_speed void |
872 | downheap (ANHE *heap, int N, int k) |
1204 | downheap (ANHE *heap, int N, int k) |
873 | { |
1205 | { |
874 | ANHE he = heap [k]; |
1206 | ANHE he = heap [k]; |
875 | ANHE *E = heap + N + HEAP0; |
1207 | ANHE *E = heap + N + HEAP0; |
876 | |
1208 | |
… | |
… | |
916 | #define HEAP0 1 |
1248 | #define HEAP0 1 |
917 | #define HPARENT(k) ((k) >> 1) |
1249 | #define HPARENT(k) ((k) >> 1) |
918 | #define UPHEAP_DONE(p,k) (!(p)) |
1250 | #define UPHEAP_DONE(p,k) (!(p)) |
919 | |
1251 | |
920 | /* away from the root */ |
1252 | /* away from the root */ |
921 | void inline_speed |
1253 | inline_speed void |
922 | downheap (ANHE *heap, int N, int k) |
1254 | downheap (ANHE *heap, int N, int k) |
923 | { |
1255 | { |
924 | ANHE he = heap [k]; |
1256 | ANHE he = heap [k]; |
925 | |
1257 | |
926 | for (;;) |
1258 | for (;;) |
927 | { |
1259 | { |
928 | int c = k << 1; |
1260 | int c = k << 1; |
929 | |
1261 | |
930 | if (c > N + HEAP0 - 1) |
1262 | if (c >= N + HEAP0) |
931 | break; |
1263 | break; |
932 | |
1264 | |
933 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1265 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
934 | ? 1 : 0; |
1266 | ? 1 : 0; |
935 | |
1267 | |
… | |
… | |
946 | ev_active (ANHE_w (he)) = k; |
1278 | ev_active (ANHE_w (he)) = k; |
947 | } |
1279 | } |
948 | #endif |
1280 | #endif |
949 | |
1281 | |
950 | /* towards the root */ |
1282 | /* towards the root */ |
951 | void inline_speed |
1283 | inline_speed void |
952 | upheap (ANHE *heap, int k) |
1284 | upheap (ANHE *heap, int k) |
953 | { |
1285 | { |
954 | ANHE he = heap [k]; |
1286 | ANHE he = heap [k]; |
955 | |
1287 | |
956 | for (;;) |
1288 | for (;;) |
… | |
… | |
967 | |
1299 | |
968 | heap [k] = he; |
1300 | heap [k] = he; |
969 | ev_active (ANHE_w (he)) = k; |
1301 | ev_active (ANHE_w (he)) = k; |
970 | } |
1302 | } |
971 | |
1303 | |
972 | void inline_size |
1304 | /* move an element suitably so it is in a correct place */ |
|
|
1305 | inline_size void |
973 | adjustheap (ANHE *heap, int N, int k) |
1306 | adjustheap (ANHE *heap, int N, int k) |
974 | { |
1307 | { |
975 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1308 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
976 | upheap (heap, k); |
1309 | upheap (heap, k); |
977 | else |
1310 | else |
978 | downheap (heap, N, k); |
1311 | downheap (heap, N, k); |
979 | } |
1312 | } |
980 | |
1313 | |
981 | /* rebuild the heap: this function is used only once and executed rarely */ |
1314 | /* rebuild the heap: this function is used only once and executed rarely */ |
982 | void inline_size |
1315 | inline_size void |
983 | reheap (ANHE *heap, int N) |
1316 | reheap (ANHE *heap, int N) |
984 | { |
1317 | { |
985 | int i; |
1318 | int i; |
986 | |
1319 | |
987 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1320 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
990 | upheap (heap, i + HEAP0); |
1323 | upheap (heap, i + HEAP0); |
991 | } |
1324 | } |
992 | |
1325 | |
993 | /*****************************************************************************/ |
1326 | /*****************************************************************************/ |
994 | |
1327 | |
|
|
1328 | /* associate signal watchers to a signal signal */ |
995 | typedef struct |
1329 | typedef struct |
996 | { |
1330 | { |
|
|
1331 | EV_ATOMIC_T pending; |
|
|
1332 | #if EV_MULTIPLICITY |
|
|
1333 | EV_P; |
|
|
1334 | #endif |
997 | WL head; |
1335 | WL head; |
998 | EV_ATOMIC_T gotsig; |
|
|
999 | } ANSIG; |
1336 | } ANSIG; |
1000 | |
1337 | |
1001 | static ANSIG *signals; |
1338 | static ANSIG signals [EV_NSIG - 1]; |
1002 | static int signalmax; |
|
|
1003 | |
|
|
1004 | static EV_ATOMIC_T gotsig; |
|
|
1005 | |
1339 | |
1006 | /*****************************************************************************/ |
1340 | /*****************************************************************************/ |
1007 | |
1341 | |
1008 | void inline_speed |
1342 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1009 | fd_intern (int fd) |
|
|
1010 | { |
|
|
1011 | #ifdef _WIN32 |
|
|
1012 | unsigned long arg = 1; |
|
|
1013 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1014 | #else |
|
|
1015 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1016 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1017 | #endif |
|
|
1018 | } |
|
|
1019 | |
1343 | |
1020 | static void noinline |
1344 | static void noinline |
1021 | evpipe_init (EV_P) |
1345 | evpipe_init (EV_P) |
1022 | { |
1346 | { |
1023 | if (!ev_is_active (&pipeev)) |
1347 | if (!ev_is_active (&pipe_w)) |
1024 | { |
1348 | { |
1025 | #if EV_USE_EVENTFD |
1349 | # if EV_USE_EVENTFD |
|
|
1350 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1351 | if (evfd < 0 && errno == EINVAL) |
1026 | if ((evfd = eventfd (0, 0)) >= 0) |
1352 | evfd = eventfd (0, 0); |
|
|
1353 | |
|
|
1354 | if (evfd >= 0) |
1027 | { |
1355 | { |
1028 | evpipe [0] = -1; |
1356 | evpipe [0] = -1; |
1029 | fd_intern (evfd); |
1357 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1030 | ev_io_set (&pipeev, evfd, EV_READ); |
1358 | ev_io_set (&pipe_w, evfd, EV_READ); |
1031 | } |
1359 | } |
1032 | else |
1360 | else |
1033 | #endif |
1361 | # endif |
1034 | { |
1362 | { |
1035 | while (pipe (evpipe)) |
1363 | while (pipe (evpipe)) |
1036 | ev_syserr ("(libev) error creating signal/async pipe"); |
1364 | ev_syserr ("(libev) error creating signal/async pipe"); |
1037 | |
1365 | |
1038 | fd_intern (evpipe [0]); |
1366 | fd_intern (evpipe [0]); |
1039 | fd_intern (evpipe [1]); |
1367 | fd_intern (evpipe [1]); |
1040 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1368 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1041 | } |
1369 | } |
1042 | |
1370 | |
1043 | ev_io_start (EV_A_ &pipeev); |
1371 | ev_io_start (EV_A_ &pipe_w); |
1044 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1372 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1045 | } |
1373 | } |
1046 | } |
1374 | } |
1047 | |
1375 | |
1048 | void inline_size |
1376 | inline_size void |
1049 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1377 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1050 | { |
1378 | { |
1051 | if (!*flag) |
1379 | if (!*flag) |
1052 | { |
1380 | { |
1053 | int old_errno = errno; /* save errno because write might clobber it */ |
1381 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1382 | char dummy; |
1054 | |
1383 | |
1055 | *flag = 1; |
1384 | *flag = 1; |
1056 | |
1385 | |
1057 | #if EV_USE_EVENTFD |
1386 | #if EV_USE_EVENTFD |
1058 | if (evfd >= 0) |
1387 | if (evfd >= 0) |
… | |
… | |
1060 | uint64_t counter = 1; |
1389 | uint64_t counter = 1; |
1061 | write (evfd, &counter, sizeof (uint64_t)); |
1390 | write (evfd, &counter, sizeof (uint64_t)); |
1062 | } |
1391 | } |
1063 | else |
1392 | else |
1064 | #endif |
1393 | #endif |
|
|
1394 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1395 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1396 | /* so when you think this write should be a send instead, please find out */ |
|
|
1397 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1398 | /* tell me. thank you. */ |
1065 | write (evpipe [1], &old_errno, 1); |
1399 | write (evpipe [1], &dummy, 1); |
1066 | |
1400 | |
1067 | errno = old_errno; |
1401 | errno = old_errno; |
1068 | } |
1402 | } |
1069 | } |
1403 | } |
1070 | |
1404 | |
|
|
1405 | /* called whenever the libev signal pipe */ |
|
|
1406 | /* got some events (signal, async) */ |
1071 | static void |
1407 | static void |
1072 | pipecb (EV_P_ ev_io *iow, int revents) |
1408 | pipecb (EV_P_ ev_io *iow, int revents) |
1073 | { |
1409 | { |
|
|
1410 | int i; |
|
|
1411 | |
1074 | #if EV_USE_EVENTFD |
1412 | #if EV_USE_EVENTFD |
1075 | if (evfd >= 0) |
1413 | if (evfd >= 0) |
1076 | { |
1414 | { |
1077 | uint64_t counter; |
1415 | uint64_t counter; |
1078 | read (evfd, &counter, sizeof (uint64_t)); |
1416 | read (evfd, &counter, sizeof (uint64_t)); |
1079 | } |
1417 | } |
1080 | else |
1418 | else |
1081 | #endif |
1419 | #endif |
1082 | { |
1420 | { |
1083 | char dummy; |
1421 | char dummy; |
|
|
1422 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1084 | read (evpipe [0], &dummy, 1); |
1423 | read (evpipe [0], &dummy, 1); |
1085 | } |
1424 | } |
1086 | |
1425 | |
1087 | if (gotsig && ev_is_default_loop (EV_A)) |
1426 | #if EV_SIGNAL_ENABLE |
1088 | { |
1427 | if (sig_pending) |
1089 | int signum; |
1428 | { |
1090 | gotsig = 0; |
1429 | sig_pending = 0; |
1091 | |
1430 | |
1092 | for (signum = signalmax; signum--; ) |
1431 | for (i = EV_NSIG - 1; i--; ) |
1093 | if (signals [signum].gotsig) |
1432 | if (expect_false (signals [i].pending)) |
1094 | ev_feed_signal_event (EV_A_ signum + 1); |
1433 | ev_feed_signal_event (EV_A_ i + 1); |
1095 | } |
1434 | } |
|
|
1435 | #endif |
1096 | |
1436 | |
1097 | #if EV_ASYNC_ENABLE |
1437 | #if EV_ASYNC_ENABLE |
1098 | if (gotasync) |
1438 | if (async_pending) |
1099 | { |
1439 | { |
1100 | int i; |
1440 | async_pending = 0; |
1101 | gotasync = 0; |
|
|
1102 | |
1441 | |
1103 | for (i = asynccnt; i--; ) |
1442 | for (i = asynccnt; i--; ) |
1104 | if (asyncs [i]->sent) |
1443 | if (asyncs [i]->sent) |
1105 | { |
1444 | { |
1106 | asyncs [i]->sent = 0; |
1445 | asyncs [i]->sent = 0; |
… | |
… | |
1110 | #endif |
1449 | #endif |
1111 | } |
1450 | } |
1112 | |
1451 | |
1113 | /*****************************************************************************/ |
1452 | /*****************************************************************************/ |
1114 | |
1453 | |
|
|
1454 | void |
|
|
1455 | ev_feed_signal (int signum) |
|
|
1456 | { |
|
|
1457 | #if EV_MULTIPLICITY |
|
|
1458 | EV_P = signals [signum - 1].loop; |
|
|
1459 | |
|
|
1460 | if (!EV_A) |
|
|
1461 | return; |
|
|
1462 | #endif |
|
|
1463 | |
|
|
1464 | signals [signum - 1].pending = 1; |
|
|
1465 | evpipe_write (EV_A_ &sig_pending); |
|
|
1466 | } |
|
|
1467 | |
1115 | static void |
1468 | static void |
1116 | ev_sighandler (int signum) |
1469 | ev_sighandler (int signum) |
1117 | { |
1470 | { |
1118 | #if EV_MULTIPLICITY |
|
|
1119 | struct ev_loop *loop = &default_loop_struct; |
|
|
1120 | #endif |
|
|
1121 | |
|
|
1122 | #if _WIN32 |
1471 | #ifdef _WIN32 |
1123 | signal (signum, ev_sighandler); |
1472 | signal (signum, ev_sighandler); |
1124 | #endif |
1473 | #endif |
1125 | |
1474 | |
1126 | signals [signum - 1].gotsig = 1; |
1475 | ev_feed_signal (signum); |
1127 | evpipe_write (EV_A_ &gotsig); |
|
|
1128 | } |
1476 | } |
1129 | |
1477 | |
1130 | void noinline |
1478 | void noinline |
1131 | ev_feed_signal_event (EV_P_ int signum) |
1479 | ev_feed_signal_event (EV_P_ int signum) |
1132 | { |
1480 | { |
1133 | WL w; |
1481 | WL w; |
1134 | |
1482 | |
|
|
1483 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1484 | return; |
|
|
1485 | |
|
|
1486 | --signum; |
|
|
1487 | |
1135 | #if EV_MULTIPLICITY |
1488 | #if EV_MULTIPLICITY |
1136 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1489 | /* it is permissible to try to feed a signal to the wrong loop */ |
1137 | #endif |
1490 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1138 | |
1491 | |
1139 | --signum; |
1492 | if (expect_false (signals [signum].loop != EV_A)) |
1140 | |
|
|
1141 | if (signum < 0 || signum >= signalmax) |
|
|
1142 | return; |
1493 | return; |
|
|
1494 | #endif |
1143 | |
1495 | |
1144 | signals [signum].gotsig = 0; |
1496 | signals [signum].pending = 0; |
1145 | |
1497 | |
1146 | for (w = signals [signum].head; w; w = w->next) |
1498 | for (w = signals [signum].head; w; w = w->next) |
1147 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1499 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1148 | } |
1500 | } |
1149 | |
1501 | |
|
|
1502 | #if EV_USE_SIGNALFD |
|
|
1503 | static void |
|
|
1504 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1505 | { |
|
|
1506 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1507 | |
|
|
1508 | for (;;) |
|
|
1509 | { |
|
|
1510 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1511 | |
|
|
1512 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1513 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1514 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1515 | |
|
|
1516 | if (res < (ssize_t)sizeof (si)) |
|
|
1517 | break; |
|
|
1518 | } |
|
|
1519 | } |
|
|
1520 | #endif |
|
|
1521 | |
|
|
1522 | #endif |
|
|
1523 | |
1150 | /*****************************************************************************/ |
1524 | /*****************************************************************************/ |
1151 | |
1525 | |
|
|
1526 | #if EV_CHILD_ENABLE |
1152 | static WL childs [EV_PID_HASHSIZE]; |
1527 | static WL childs [EV_PID_HASHSIZE]; |
1153 | |
|
|
1154 | #ifndef _WIN32 |
|
|
1155 | |
1528 | |
1156 | static ev_signal childev; |
1529 | static ev_signal childev; |
1157 | |
1530 | |
1158 | #ifndef WIFCONTINUED |
1531 | #ifndef WIFCONTINUED |
1159 | # define WIFCONTINUED(status) 0 |
1532 | # define WIFCONTINUED(status) 0 |
1160 | #endif |
1533 | #endif |
1161 | |
1534 | |
1162 | void inline_speed |
1535 | /* handle a single child status event */ |
|
|
1536 | inline_speed void |
1163 | child_reap (EV_P_ int chain, int pid, int status) |
1537 | child_reap (EV_P_ int chain, int pid, int status) |
1164 | { |
1538 | { |
1165 | ev_child *w; |
1539 | ev_child *w; |
1166 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1540 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1167 | |
1541 | |
1168 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1542 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1169 | { |
1543 | { |
1170 | if ((w->pid == pid || !w->pid) |
1544 | if ((w->pid == pid || !w->pid) |
1171 | && (!traced || (w->flags & 1))) |
1545 | && (!traced || (w->flags & 1))) |
1172 | { |
1546 | { |
1173 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1547 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1180 | |
1554 | |
1181 | #ifndef WCONTINUED |
1555 | #ifndef WCONTINUED |
1182 | # define WCONTINUED 0 |
1556 | # define WCONTINUED 0 |
1183 | #endif |
1557 | #endif |
1184 | |
1558 | |
|
|
1559 | /* called on sigchld etc., calls waitpid */ |
1185 | static void |
1560 | static void |
1186 | childcb (EV_P_ ev_signal *sw, int revents) |
1561 | childcb (EV_P_ ev_signal *sw, int revents) |
1187 | { |
1562 | { |
1188 | int pid, status; |
1563 | int pid, status; |
1189 | |
1564 | |
… | |
… | |
1197 | /* make sure we are called again until all children have been reaped */ |
1572 | /* make sure we are called again until all children have been reaped */ |
1198 | /* we need to do it this way so that the callback gets called before we continue */ |
1573 | /* we need to do it this way so that the callback gets called before we continue */ |
1199 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1574 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1200 | |
1575 | |
1201 | child_reap (EV_A_ pid, pid, status); |
1576 | child_reap (EV_A_ pid, pid, status); |
1202 | if (EV_PID_HASHSIZE > 1) |
1577 | if ((EV_PID_HASHSIZE) > 1) |
1203 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1578 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1204 | } |
1579 | } |
1205 | |
1580 | |
1206 | #endif |
1581 | #endif |
1207 | |
1582 | |
1208 | /*****************************************************************************/ |
1583 | /*****************************************************************************/ |
1209 | |
1584 | |
|
|
1585 | #if EV_USE_IOCP |
|
|
1586 | # include "ev_iocp.c" |
|
|
1587 | #endif |
1210 | #if EV_USE_PORT |
1588 | #if EV_USE_PORT |
1211 | # include "ev_port.c" |
1589 | # include "ev_port.c" |
1212 | #endif |
1590 | #endif |
1213 | #if EV_USE_KQUEUE |
1591 | #if EV_USE_KQUEUE |
1214 | # include "ev_kqueue.c" |
1592 | # include "ev_kqueue.c" |
… | |
… | |
1274 | #ifdef __APPLE__ |
1652 | #ifdef __APPLE__ |
1275 | /* only select works correctly on that "unix-certified" platform */ |
1653 | /* only select works correctly on that "unix-certified" platform */ |
1276 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1654 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1277 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1655 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1278 | #endif |
1656 | #endif |
|
|
1657 | #ifdef __FreeBSD__ |
|
|
1658 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1659 | #endif |
1279 | |
1660 | |
1280 | return flags; |
1661 | return flags; |
1281 | } |
1662 | } |
1282 | |
1663 | |
1283 | unsigned int |
1664 | unsigned int |
1284 | ev_embeddable_backends (void) |
1665 | ev_embeddable_backends (void) |
1285 | { |
1666 | { |
1286 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1667 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1287 | |
1668 | |
1288 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1669 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1289 | /* please fix it and tell me how to detect the fix */ |
1670 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1290 | flags &= ~EVBACKEND_EPOLL; |
1671 | flags &= ~EVBACKEND_EPOLL; |
1291 | |
1672 | |
1292 | return flags; |
1673 | return flags; |
1293 | } |
1674 | } |
1294 | |
1675 | |
1295 | unsigned int |
1676 | unsigned int |
1296 | ev_backend (EV_P) |
1677 | ev_backend (EV_P) |
1297 | { |
1678 | { |
1298 | return backend; |
1679 | return backend; |
1299 | } |
1680 | } |
1300 | |
1681 | |
|
|
1682 | #if EV_FEATURE_API |
1301 | unsigned int |
1683 | unsigned int |
1302 | ev_loop_count (EV_P) |
1684 | ev_iteration (EV_P) |
1303 | { |
1685 | { |
1304 | return loop_count; |
1686 | return loop_count; |
1305 | } |
1687 | } |
1306 | |
1688 | |
|
|
1689 | unsigned int |
|
|
1690 | ev_depth (EV_P) |
|
|
1691 | { |
|
|
1692 | return loop_depth; |
|
|
1693 | } |
|
|
1694 | |
1307 | void |
1695 | void |
1308 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1696 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1309 | { |
1697 | { |
1310 | io_blocktime = interval; |
1698 | io_blocktime = interval; |
1311 | } |
1699 | } |
… | |
… | |
1314 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1702 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1315 | { |
1703 | { |
1316 | timeout_blocktime = interval; |
1704 | timeout_blocktime = interval; |
1317 | } |
1705 | } |
1318 | |
1706 | |
|
|
1707 | void |
|
|
1708 | ev_set_userdata (EV_P_ void *data) |
|
|
1709 | { |
|
|
1710 | userdata = data; |
|
|
1711 | } |
|
|
1712 | |
|
|
1713 | void * |
|
|
1714 | ev_userdata (EV_P) |
|
|
1715 | { |
|
|
1716 | return userdata; |
|
|
1717 | } |
|
|
1718 | |
|
|
1719 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1720 | { |
|
|
1721 | invoke_cb = invoke_pending_cb; |
|
|
1722 | } |
|
|
1723 | |
|
|
1724 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1725 | { |
|
|
1726 | release_cb = release; |
|
|
1727 | acquire_cb = acquire; |
|
|
1728 | } |
|
|
1729 | #endif |
|
|
1730 | |
|
|
1731 | /* initialise a loop structure, must be zero-initialised */ |
1319 | static void noinline |
1732 | static void noinline |
1320 | loop_init (EV_P_ unsigned int flags) |
1733 | loop_init (EV_P_ unsigned int flags) |
1321 | { |
1734 | { |
1322 | if (!backend) |
1735 | if (!backend) |
1323 | { |
1736 | { |
|
|
1737 | origflags = flags; |
|
|
1738 | |
|
|
1739 | #if EV_USE_REALTIME |
|
|
1740 | if (!have_realtime) |
|
|
1741 | { |
|
|
1742 | struct timespec ts; |
|
|
1743 | |
|
|
1744 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1745 | have_realtime = 1; |
|
|
1746 | } |
|
|
1747 | #endif |
|
|
1748 | |
1324 | #if EV_USE_MONOTONIC |
1749 | #if EV_USE_MONOTONIC |
|
|
1750 | if (!have_monotonic) |
1325 | { |
1751 | { |
1326 | struct timespec ts; |
1752 | struct timespec ts; |
|
|
1753 | |
1327 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1754 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1328 | have_monotonic = 1; |
1755 | have_monotonic = 1; |
1329 | } |
1756 | } |
1330 | #endif |
1757 | #endif |
|
|
1758 | |
|
|
1759 | /* pid check not overridable via env */ |
|
|
1760 | #ifndef _WIN32 |
|
|
1761 | if (flags & EVFLAG_FORKCHECK) |
|
|
1762 | curpid = getpid (); |
|
|
1763 | #endif |
|
|
1764 | |
|
|
1765 | if (!(flags & EVFLAG_NOENV) |
|
|
1766 | && !enable_secure () |
|
|
1767 | && getenv ("LIBEV_FLAGS")) |
|
|
1768 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1331 | |
1769 | |
1332 | ev_rt_now = ev_time (); |
1770 | ev_rt_now = ev_time (); |
1333 | mn_now = get_clock (); |
1771 | mn_now = get_clock (); |
1334 | now_floor = mn_now; |
1772 | now_floor = mn_now; |
1335 | rtmn_diff = ev_rt_now - mn_now; |
1773 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1774 | #if EV_FEATURE_API |
|
|
1775 | invoke_cb = ev_invoke_pending; |
|
|
1776 | #endif |
1336 | |
1777 | |
1337 | io_blocktime = 0.; |
1778 | io_blocktime = 0.; |
1338 | timeout_blocktime = 0.; |
1779 | timeout_blocktime = 0.; |
1339 | backend = 0; |
1780 | backend = 0; |
1340 | backend_fd = -1; |
1781 | backend_fd = -1; |
1341 | gotasync = 0; |
1782 | sig_pending = 0; |
|
|
1783 | #if EV_ASYNC_ENABLE |
|
|
1784 | async_pending = 0; |
|
|
1785 | #endif |
1342 | #if EV_USE_INOTIFY |
1786 | #if EV_USE_INOTIFY |
1343 | fs_fd = -2; |
1787 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1344 | #endif |
1788 | #endif |
1345 | |
1789 | #if EV_USE_SIGNALFD |
1346 | /* pid check not overridable via env */ |
1790 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1347 | #ifndef _WIN32 |
|
|
1348 | if (flags & EVFLAG_FORKCHECK) |
|
|
1349 | curpid = getpid (); |
|
|
1350 | #endif |
1791 | #endif |
1351 | |
1792 | |
1352 | if (!(flags & EVFLAG_NOENV) |
1793 | if (!(flags & EVBACKEND_MASK)) |
1353 | && !enable_secure () |
|
|
1354 | && getenv ("LIBEV_FLAGS")) |
|
|
1355 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1356 | |
|
|
1357 | if (!(flags & 0x0000ffffU)) |
|
|
1358 | flags |= ev_recommended_backends (); |
1794 | flags |= ev_recommended_backends (); |
1359 | |
1795 | |
|
|
1796 | #if EV_USE_IOCP |
|
|
1797 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1798 | #endif |
1360 | #if EV_USE_PORT |
1799 | #if EV_USE_PORT |
1361 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1800 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1362 | #endif |
1801 | #endif |
1363 | #if EV_USE_KQUEUE |
1802 | #if EV_USE_KQUEUE |
1364 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1803 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1371 | #endif |
1810 | #endif |
1372 | #if EV_USE_SELECT |
1811 | #if EV_USE_SELECT |
1373 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1812 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1374 | #endif |
1813 | #endif |
1375 | |
1814 | |
|
|
1815 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1816 | |
|
|
1817 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1376 | ev_init (&pipeev, pipecb); |
1818 | ev_init (&pipe_w, pipecb); |
1377 | ev_set_priority (&pipeev, EV_MAXPRI); |
1819 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1820 | #endif |
1378 | } |
1821 | } |
1379 | } |
1822 | } |
1380 | |
1823 | |
1381 | static void noinline |
1824 | /* free up a loop structure */ |
|
|
1825 | void |
1382 | loop_destroy (EV_P) |
1826 | ev_loop_destroy (EV_P) |
1383 | { |
1827 | { |
1384 | int i; |
1828 | int i; |
1385 | |
1829 | |
|
|
1830 | #if EV_MULTIPLICITY |
|
|
1831 | /* mimic free (0) */ |
|
|
1832 | if (!EV_A) |
|
|
1833 | return; |
|
|
1834 | #endif |
|
|
1835 | |
|
|
1836 | #if EV_CLEANUP_ENABLE |
|
|
1837 | /* queue cleanup watchers (and execute them) */ |
|
|
1838 | if (expect_false (cleanupcnt)) |
|
|
1839 | { |
|
|
1840 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1841 | EV_INVOKE_PENDING; |
|
|
1842 | } |
|
|
1843 | #endif |
|
|
1844 | |
|
|
1845 | #if EV_CHILD_ENABLE |
|
|
1846 | if (ev_is_active (&childev)) |
|
|
1847 | { |
|
|
1848 | ev_ref (EV_A); /* child watcher */ |
|
|
1849 | ev_signal_stop (EV_A_ &childev); |
|
|
1850 | } |
|
|
1851 | #endif |
|
|
1852 | |
1386 | if (ev_is_active (&pipeev)) |
1853 | if (ev_is_active (&pipe_w)) |
1387 | { |
1854 | { |
1388 | ev_ref (EV_A); /* signal watcher */ |
1855 | /*ev_ref (EV_A);*/ |
1389 | ev_io_stop (EV_A_ &pipeev); |
1856 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1390 | |
1857 | |
1391 | #if EV_USE_EVENTFD |
1858 | #if EV_USE_EVENTFD |
1392 | if (evfd >= 0) |
1859 | if (evfd >= 0) |
1393 | close (evfd); |
1860 | close (evfd); |
1394 | #endif |
1861 | #endif |
1395 | |
1862 | |
1396 | if (evpipe [0] >= 0) |
1863 | if (evpipe [0] >= 0) |
1397 | { |
1864 | { |
1398 | close (evpipe [0]); |
1865 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1399 | close (evpipe [1]); |
1866 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1400 | } |
1867 | } |
1401 | } |
1868 | } |
|
|
1869 | |
|
|
1870 | #if EV_USE_SIGNALFD |
|
|
1871 | if (ev_is_active (&sigfd_w)) |
|
|
1872 | close (sigfd); |
|
|
1873 | #endif |
1402 | |
1874 | |
1403 | #if EV_USE_INOTIFY |
1875 | #if EV_USE_INOTIFY |
1404 | if (fs_fd >= 0) |
1876 | if (fs_fd >= 0) |
1405 | close (fs_fd); |
1877 | close (fs_fd); |
1406 | #endif |
1878 | #endif |
1407 | |
1879 | |
1408 | if (backend_fd >= 0) |
1880 | if (backend_fd >= 0) |
1409 | close (backend_fd); |
1881 | close (backend_fd); |
1410 | |
1882 | |
|
|
1883 | #if EV_USE_IOCP |
|
|
1884 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1885 | #endif |
1411 | #if EV_USE_PORT |
1886 | #if EV_USE_PORT |
1412 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1887 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1413 | #endif |
1888 | #endif |
1414 | #if EV_USE_KQUEUE |
1889 | #if EV_USE_KQUEUE |
1415 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1890 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1430 | #if EV_IDLE_ENABLE |
1905 | #if EV_IDLE_ENABLE |
1431 | array_free (idle, [i]); |
1906 | array_free (idle, [i]); |
1432 | #endif |
1907 | #endif |
1433 | } |
1908 | } |
1434 | |
1909 | |
1435 | ev_free (anfds); anfdmax = 0; |
1910 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1436 | |
1911 | |
1437 | /* have to use the microsoft-never-gets-it-right macro */ |
1912 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1913 | array_free (rfeed, EMPTY); |
1438 | array_free (fdchange, EMPTY); |
1914 | array_free (fdchange, EMPTY); |
1439 | array_free (timer, EMPTY); |
1915 | array_free (timer, EMPTY); |
1440 | #if EV_PERIODIC_ENABLE |
1916 | #if EV_PERIODIC_ENABLE |
1441 | array_free (periodic, EMPTY); |
1917 | array_free (periodic, EMPTY); |
1442 | #endif |
1918 | #endif |
1443 | #if EV_FORK_ENABLE |
1919 | #if EV_FORK_ENABLE |
1444 | array_free (fork, EMPTY); |
1920 | array_free (fork, EMPTY); |
1445 | #endif |
1921 | #endif |
|
|
1922 | #if EV_CLEANUP_ENABLE |
|
|
1923 | array_free (cleanup, EMPTY); |
|
|
1924 | #endif |
1446 | array_free (prepare, EMPTY); |
1925 | array_free (prepare, EMPTY); |
1447 | array_free (check, EMPTY); |
1926 | array_free (check, EMPTY); |
1448 | #if EV_ASYNC_ENABLE |
1927 | #if EV_ASYNC_ENABLE |
1449 | array_free (async, EMPTY); |
1928 | array_free (async, EMPTY); |
1450 | #endif |
1929 | #endif |
1451 | |
1930 | |
1452 | backend = 0; |
1931 | backend = 0; |
|
|
1932 | |
|
|
1933 | #if EV_MULTIPLICITY |
|
|
1934 | if (ev_is_default_loop (EV_A)) |
|
|
1935 | #endif |
|
|
1936 | ev_default_loop_ptr = 0; |
|
|
1937 | #if EV_MULTIPLICITY |
|
|
1938 | else |
|
|
1939 | ev_free (EV_A); |
|
|
1940 | #endif |
1453 | } |
1941 | } |
1454 | |
1942 | |
1455 | #if EV_USE_INOTIFY |
1943 | #if EV_USE_INOTIFY |
1456 | void inline_size infy_fork (EV_P); |
1944 | inline_size void infy_fork (EV_P); |
1457 | #endif |
1945 | #endif |
1458 | |
1946 | |
1459 | void inline_size |
1947 | inline_size void |
1460 | loop_fork (EV_P) |
1948 | loop_fork (EV_P) |
1461 | { |
1949 | { |
1462 | #if EV_USE_PORT |
1950 | #if EV_USE_PORT |
1463 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1951 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1464 | #endif |
1952 | #endif |
… | |
… | |
1470 | #endif |
1958 | #endif |
1471 | #if EV_USE_INOTIFY |
1959 | #if EV_USE_INOTIFY |
1472 | infy_fork (EV_A); |
1960 | infy_fork (EV_A); |
1473 | #endif |
1961 | #endif |
1474 | |
1962 | |
1475 | if (ev_is_active (&pipeev)) |
1963 | if (ev_is_active (&pipe_w)) |
1476 | { |
1964 | { |
1477 | /* this "locks" the handlers against writing to the pipe */ |
1965 | /* this "locks" the handlers against writing to the pipe */ |
1478 | /* while we modify the fd vars */ |
1966 | /* while we modify the fd vars */ |
1479 | gotsig = 1; |
1967 | sig_pending = 1; |
1480 | #if EV_ASYNC_ENABLE |
1968 | #if EV_ASYNC_ENABLE |
1481 | gotasync = 1; |
1969 | async_pending = 1; |
1482 | #endif |
1970 | #endif |
1483 | |
1971 | |
1484 | ev_ref (EV_A); |
1972 | ev_ref (EV_A); |
1485 | ev_io_stop (EV_A_ &pipeev); |
1973 | ev_io_stop (EV_A_ &pipe_w); |
1486 | |
1974 | |
1487 | #if EV_USE_EVENTFD |
1975 | #if EV_USE_EVENTFD |
1488 | if (evfd >= 0) |
1976 | if (evfd >= 0) |
1489 | close (evfd); |
1977 | close (evfd); |
1490 | #endif |
1978 | #endif |
1491 | |
1979 | |
1492 | if (evpipe [0] >= 0) |
1980 | if (evpipe [0] >= 0) |
1493 | { |
1981 | { |
1494 | close (evpipe [0]); |
1982 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1495 | close (evpipe [1]); |
1983 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1496 | } |
1984 | } |
1497 | |
1985 | |
|
|
1986 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1498 | evpipe_init (EV_A); |
1987 | evpipe_init (EV_A); |
1499 | /* now iterate over everything, in case we missed something */ |
1988 | /* now iterate over everything, in case we missed something */ |
1500 | pipecb (EV_A_ &pipeev, EV_READ); |
1989 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1990 | #endif |
1501 | } |
1991 | } |
1502 | |
1992 | |
1503 | postfork = 0; |
1993 | postfork = 0; |
1504 | } |
1994 | } |
1505 | |
1995 | |
1506 | #if EV_MULTIPLICITY |
1996 | #if EV_MULTIPLICITY |
1507 | |
1997 | |
1508 | struct ev_loop * |
1998 | struct ev_loop * |
1509 | ev_loop_new (unsigned int flags) |
1999 | ev_loop_new (unsigned int flags) |
1510 | { |
2000 | { |
1511 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2001 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1512 | |
2002 | |
1513 | memset (loop, 0, sizeof (struct ev_loop)); |
2003 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1514 | |
|
|
1515 | loop_init (EV_A_ flags); |
2004 | loop_init (EV_A_ flags); |
1516 | |
2005 | |
1517 | if (ev_backend (EV_A)) |
2006 | if (ev_backend (EV_A)) |
1518 | return loop; |
2007 | return EV_A; |
1519 | |
2008 | |
|
|
2009 | ev_free (EV_A); |
1520 | return 0; |
2010 | return 0; |
1521 | } |
2011 | } |
1522 | |
2012 | |
1523 | void |
2013 | #endif /* multiplicity */ |
1524 | ev_loop_destroy (EV_P) |
|
|
1525 | { |
|
|
1526 | loop_destroy (EV_A); |
|
|
1527 | ev_free (loop); |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | void |
|
|
1531 | ev_loop_fork (EV_P) |
|
|
1532 | { |
|
|
1533 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1534 | } |
|
|
1535 | |
2014 | |
1536 | #if EV_VERIFY |
2015 | #if EV_VERIFY |
1537 | static void noinline |
2016 | static void noinline |
1538 | verify_watcher (EV_P_ W w) |
2017 | verify_watcher (EV_P_ W w) |
1539 | { |
2018 | { |
… | |
… | |
1567 | verify_watcher (EV_A_ ws [cnt]); |
2046 | verify_watcher (EV_A_ ws [cnt]); |
1568 | } |
2047 | } |
1569 | } |
2048 | } |
1570 | #endif |
2049 | #endif |
1571 | |
2050 | |
|
|
2051 | #if EV_FEATURE_API |
1572 | void |
2052 | void |
1573 | ev_loop_verify (EV_P) |
2053 | ev_verify (EV_P) |
1574 | { |
2054 | { |
1575 | #if EV_VERIFY |
2055 | #if EV_VERIFY |
1576 | int i; |
2056 | int i; |
1577 | WL w; |
2057 | WL w; |
1578 | |
2058 | |
… | |
… | |
1612 | #if EV_FORK_ENABLE |
2092 | #if EV_FORK_ENABLE |
1613 | assert (forkmax >= forkcnt); |
2093 | assert (forkmax >= forkcnt); |
1614 | array_verify (EV_A_ (W *)forks, forkcnt); |
2094 | array_verify (EV_A_ (W *)forks, forkcnt); |
1615 | #endif |
2095 | #endif |
1616 | |
2096 | |
|
|
2097 | #if EV_CLEANUP_ENABLE |
|
|
2098 | assert (cleanupmax >= cleanupcnt); |
|
|
2099 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2100 | #endif |
|
|
2101 | |
1617 | #if EV_ASYNC_ENABLE |
2102 | #if EV_ASYNC_ENABLE |
1618 | assert (asyncmax >= asynccnt); |
2103 | assert (asyncmax >= asynccnt); |
1619 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2104 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1620 | #endif |
2105 | #endif |
1621 | |
2106 | |
|
|
2107 | #if EV_PREPARE_ENABLE |
1622 | assert (preparemax >= preparecnt); |
2108 | assert (preparemax >= preparecnt); |
1623 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2109 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2110 | #endif |
1624 | |
2111 | |
|
|
2112 | #if EV_CHECK_ENABLE |
1625 | assert (checkmax >= checkcnt); |
2113 | assert (checkmax >= checkcnt); |
1626 | array_verify (EV_A_ (W *)checks, checkcnt); |
2114 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2115 | #endif |
1627 | |
2116 | |
1628 | # if 0 |
2117 | # if 0 |
|
|
2118 | #if EV_CHILD_ENABLE |
1629 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2119 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1630 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2120 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2121 | #endif |
1631 | # endif |
2122 | # endif |
1632 | #endif |
2123 | #endif |
1633 | } |
2124 | } |
1634 | |
2125 | #endif |
1635 | #endif /* multiplicity */ |
|
|
1636 | |
2126 | |
1637 | #if EV_MULTIPLICITY |
2127 | #if EV_MULTIPLICITY |
1638 | struct ev_loop * |
2128 | struct ev_loop * |
1639 | ev_default_loop_init (unsigned int flags) |
|
|
1640 | #else |
2129 | #else |
1641 | int |
2130 | int |
|
|
2131 | #endif |
1642 | ev_default_loop (unsigned int flags) |
2132 | ev_default_loop (unsigned int flags) |
1643 | #endif |
|
|
1644 | { |
2133 | { |
1645 | if (!ev_default_loop_ptr) |
2134 | if (!ev_default_loop_ptr) |
1646 | { |
2135 | { |
1647 | #if EV_MULTIPLICITY |
2136 | #if EV_MULTIPLICITY |
1648 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2137 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1649 | #else |
2138 | #else |
1650 | ev_default_loop_ptr = 1; |
2139 | ev_default_loop_ptr = 1; |
1651 | #endif |
2140 | #endif |
1652 | |
2141 | |
1653 | loop_init (EV_A_ flags); |
2142 | loop_init (EV_A_ flags); |
1654 | |
2143 | |
1655 | if (ev_backend (EV_A)) |
2144 | if (ev_backend (EV_A)) |
1656 | { |
2145 | { |
1657 | #ifndef _WIN32 |
2146 | #if EV_CHILD_ENABLE |
1658 | ev_signal_init (&childev, childcb, SIGCHLD); |
2147 | ev_signal_init (&childev, childcb, SIGCHLD); |
1659 | ev_set_priority (&childev, EV_MAXPRI); |
2148 | ev_set_priority (&childev, EV_MAXPRI); |
1660 | ev_signal_start (EV_A_ &childev); |
2149 | ev_signal_start (EV_A_ &childev); |
1661 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2150 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1662 | #endif |
2151 | #endif |
… | |
… | |
1667 | |
2156 | |
1668 | return ev_default_loop_ptr; |
2157 | return ev_default_loop_ptr; |
1669 | } |
2158 | } |
1670 | |
2159 | |
1671 | void |
2160 | void |
1672 | ev_default_destroy (void) |
2161 | ev_loop_fork (EV_P) |
1673 | { |
2162 | { |
1674 | #if EV_MULTIPLICITY |
|
|
1675 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1676 | #endif |
|
|
1677 | |
|
|
1678 | ev_default_loop_ptr = 0; |
|
|
1679 | |
|
|
1680 | #ifndef _WIN32 |
|
|
1681 | ev_ref (EV_A); /* child watcher */ |
|
|
1682 | ev_signal_stop (EV_A_ &childev); |
|
|
1683 | #endif |
|
|
1684 | |
|
|
1685 | loop_destroy (EV_A); |
|
|
1686 | } |
|
|
1687 | |
|
|
1688 | void |
|
|
1689 | ev_default_fork (void) |
|
|
1690 | { |
|
|
1691 | #if EV_MULTIPLICITY |
|
|
1692 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1693 | #endif |
|
|
1694 | |
|
|
1695 | postfork = 1; /* must be in line with ev_loop_fork */ |
2163 | postfork = 1; /* must be in line with ev_default_fork */ |
1696 | } |
2164 | } |
1697 | |
2165 | |
1698 | /*****************************************************************************/ |
2166 | /*****************************************************************************/ |
1699 | |
2167 | |
1700 | void |
2168 | void |
1701 | ev_invoke (EV_P_ void *w, int revents) |
2169 | ev_invoke (EV_P_ void *w, int revents) |
1702 | { |
2170 | { |
1703 | EV_CB_INVOKE ((W)w, revents); |
2171 | EV_CB_INVOKE ((W)w, revents); |
1704 | } |
2172 | } |
1705 | |
2173 | |
1706 | void inline_speed |
2174 | unsigned int |
1707 | call_pending (EV_P) |
2175 | ev_pending_count (EV_P) |
|
|
2176 | { |
|
|
2177 | int pri; |
|
|
2178 | unsigned int count = 0; |
|
|
2179 | |
|
|
2180 | for (pri = NUMPRI; pri--; ) |
|
|
2181 | count += pendingcnt [pri]; |
|
|
2182 | |
|
|
2183 | return count; |
|
|
2184 | } |
|
|
2185 | |
|
|
2186 | void noinline |
|
|
2187 | ev_invoke_pending (EV_P) |
1708 | { |
2188 | { |
1709 | int pri; |
2189 | int pri; |
1710 | |
2190 | |
1711 | for (pri = NUMPRI; pri--; ) |
2191 | for (pri = NUMPRI; pri--; ) |
1712 | while (pendingcnt [pri]) |
2192 | while (pendingcnt [pri]) |
1713 | { |
2193 | { |
1714 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2194 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1715 | |
2195 | |
1716 | if (expect_true (p->w)) |
|
|
1717 | { |
|
|
1718 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1719 | |
|
|
1720 | p->w->pending = 0; |
2196 | p->w->pending = 0; |
1721 | EV_CB_INVOKE (p->w, p->events); |
2197 | EV_CB_INVOKE (p->w, p->events); |
1722 | EV_FREQUENT_CHECK; |
2198 | EV_FREQUENT_CHECK; |
1723 | } |
|
|
1724 | } |
2199 | } |
1725 | } |
2200 | } |
1726 | |
2201 | |
1727 | #if EV_IDLE_ENABLE |
2202 | #if EV_IDLE_ENABLE |
1728 | void inline_size |
2203 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2204 | /* only when higher priorities are idle" logic */ |
|
|
2205 | inline_size void |
1729 | idle_reify (EV_P) |
2206 | idle_reify (EV_P) |
1730 | { |
2207 | { |
1731 | if (expect_false (idleall)) |
2208 | if (expect_false (idleall)) |
1732 | { |
2209 | { |
1733 | int pri; |
2210 | int pri; |
… | |
… | |
1745 | } |
2222 | } |
1746 | } |
2223 | } |
1747 | } |
2224 | } |
1748 | #endif |
2225 | #endif |
1749 | |
2226 | |
1750 | void inline_size |
2227 | /* make timers pending */ |
|
|
2228 | inline_size void |
1751 | timers_reify (EV_P) |
2229 | timers_reify (EV_P) |
1752 | { |
2230 | { |
1753 | EV_FREQUENT_CHECK; |
2231 | EV_FREQUENT_CHECK; |
1754 | |
2232 | |
1755 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2233 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1756 | { |
2234 | { |
1757 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2235 | do |
1758 | |
|
|
1759 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1760 | |
|
|
1761 | /* first reschedule or stop timer */ |
|
|
1762 | if (w->repeat) |
|
|
1763 | { |
2236 | { |
|
|
2237 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2238 | |
|
|
2239 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2240 | |
|
|
2241 | /* first reschedule or stop timer */ |
|
|
2242 | if (w->repeat) |
|
|
2243 | { |
1764 | ev_at (w) += w->repeat; |
2244 | ev_at (w) += w->repeat; |
1765 | if (ev_at (w) < mn_now) |
2245 | if (ev_at (w) < mn_now) |
1766 | ev_at (w) = mn_now; |
2246 | ev_at (w) = mn_now; |
1767 | |
2247 | |
1768 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2248 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1769 | |
2249 | |
1770 | ANHE_at_cache (timers [HEAP0]); |
2250 | ANHE_at_cache (timers [HEAP0]); |
1771 | downheap (timers, timercnt, HEAP0); |
2251 | downheap (timers, timercnt, HEAP0); |
|
|
2252 | } |
|
|
2253 | else |
|
|
2254 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2255 | |
|
|
2256 | EV_FREQUENT_CHECK; |
|
|
2257 | feed_reverse (EV_A_ (W)w); |
1772 | } |
2258 | } |
1773 | else |
2259 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1774 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1775 | |
2260 | |
1776 | EV_FREQUENT_CHECK; |
2261 | feed_reverse_done (EV_A_ EV_TIMER); |
1777 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1778 | } |
2262 | } |
1779 | } |
2263 | } |
1780 | |
2264 | |
1781 | #if EV_PERIODIC_ENABLE |
2265 | #if EV_PERIODIC_ENABLE |
1782 | void inline_size |
2266 | |
|
|
2267 | static void noinline |
|
|
2268 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2269 | { |
|
|
2270 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2271 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2272 | |
|
|
2273 | /* the above almost always errs on the low side */ |
|
|
2274 | while (at <= ev_rt_now) |
|
|
2275 | { |
|
|
2276 | ev_tstamp nat = at + w->interval; |
|
|
2277 | |
|
|
2278 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2279 | if (expect_false (nat == at)) |
|
|
2280 | { |
|
|
2281 | at = ev_rt_now; |
|
|
2282 | break; |
|
|
2283 | } |
|
|
2284 | |
|
|
2285 | at = nat; |
|
|
2286 | } |
|
|
2287 | |
|
|
2288 | ev_at (w) = at; |
|
|
2289 | } |
|
|
2290 | |
|
|
2291 | /* make periodics pending */ |
|
|
2292 | inline_size void |
1783 | periodics_reify (EV_P) |
2293 | periodics_reify (EV_P) |
1784 | { |
2294 | { |
1785 | EV_FREQUENT_CHECK; |
2295 | EV_FREQUENT_CHECK; |
1786 | |
2296 | |
1787 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2297 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1788 | { |
2298 | { |
1789 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2299 | int feed_count = 0; |
1790 | |
2300 | |
1791 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2301 | do |
1792 | |
|
|
1793 | /* first reschedule or stop timer */ |
|
|
1794 | if (w->reschedule_cb) |
|
|
1795 | { |
2302 | { |
|
|
2303 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2304 | |
|
|
2305 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2306 | |
|
|
2307 | /* first reschedule or stop timer */ |
|
|
2308 | if (w->reschedule_cb) |
|
|
2309 | { |
1796 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2310 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1797 | |
2311 | |
1798 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2312 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1799 | |
2313 | |
1800 | ANHE_at_cache (periodics [HEAP0]); |
2314 | ANHE_at_cache (periodics [HEAP0]); |
1801 | downheap (periodics, periodiccnt, HEAP0); |
2315 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2316 | } |
|
|
2317 | else if (w->interval) |
|
|
2318 | { |
|
|
2319 | periodic_recalc (EV_A_ w); |
|
|
2320 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2321 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2322 | } |
|
|
2323 | else |
|
|
2324 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2325 | |
|
|
2326 | EV_FREQUENT_CHECK; |
|
|
2327 | feed_reverse (EV_A_ (W)w); |
1802 | } |
2328 | } |
1803 | else if (w->interval) |
2329 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1804 | { |
|
|
1805 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1806 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1807 | /* this might happen because of floating point inexactness */ |
|
|
1808 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1809 | { |
|
|
1810 | ev_at (w) += w->interval; |
|
|
1811 | |
2330 | |
1812 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1813 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1814 | /* has effectively asked to get triggered more often than possible */ |
|
|
1815 | if (ev_at (w) < ev_rt_now) |
|
|
1816 | ev_at (w) = ev_rt_now; |
|
|
1817 | } |
|
|
1818 | |
|
|
1819 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1820 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1821 | } |
|
|
1822 | else |
|
|
1823 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1824 | |
|
|
1825 | EV_FREQUENT_CHECK; |
|
|
1826 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2331 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1827 | } |
2332 | } |
1828 | } |
2333 | } |
1829 | |
2334 | |
|
|
2335 | /* simply recalculate all periodics */ |
|
|
2336 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1830 | static void noinline |
2337 | static void noinline |
1831 | periodics_reschedule (EV_P) |
2338 | periodics_reschedule (EV_P) |
1832 | { |
2339 | { |
1833 | int i; |
2340 | int i; |
1834 | |
2341 | |
… | |
… | |
1838 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2345 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1839 | |
2346 | |
1840 | if (w->reschedule_cb) |
2347 | if (w->reschedule_cb) |
1841 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2348 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1842 | else if (w->interval) |
2349 | else if (w->interval) |
1843 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2350 | periodic_recalc (EV_A_ w); |
1844 | |
2351 | |
1845 | ANHE_at_cache (periodics [i]); |
2352 | ANHE_at_cache (periodics [i]); |
1846 | } |
2353 | } |
1847 | |
2354 | |
1848 | reheap (periodics, periodiccnt); |
2355 | reheap (periodics, periodiccnt); |
1849 | } |
2356 | } |
1850 | #endif |
2357 | #endif |
1851 | |
2358 | |
1852 | void inline_speed |
2359 | /* adjust all timers by a given offset */ |
|
|
2360 | static void noinline |
|
|
2361 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2362 | { |
|
|
2363 | int i; |
|
|
2364 | |
|
|
2365 | for (i = 0; i < timercnt; ++i) |
|
|
2366 | { |
|
|
2367 | ANHE *he = timers + i + HEAP0; |
|
|
2368 | ANHE_w (*he)->at += adjust; |
|
|
2369 | ANHE_at_cache (*he); |
|
|
2370 | } |
|
|
2371 | } |
|
|
2372 | |
|
|
2373 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2374 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2375 | inline_speed void |
1853 | time_update (EV_P_ ev_tstamp max_block) |
2376 | time_update (EV_P_ ev_tstamp max_block) |
1854 | { |
2377 | { |
1855 | int i; |
|
|
1856 | |
|
|
1857 | #if EV_USE_MONOTONIC |
2378 | #if EV_USE_MONOTONIC |
1858 | if (expect_true (have_monotonic)) |
2379 | if (expect_true (have_monotonic)) |
1859 | { |
2380 | { |
|
|
2381 | int i; |
1860 | ev_tstamp odiff = rtmn_diff; |
2382 | ev_tstamp odiff = rtmn_diff; |
1861 | |
2383 | |
1862 | mn_now = get_clock (); |
2384 | mn_now = get_clock (); |
1863 | |
2385 | |
1864 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2386 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1880 | * doesn't hurt either as we only do this on time-jumps or |
2402 | * doesn't hurt either as we only do this on time-jumps or |
1881 | * in the unlikely event of having been preempted here. |
2403 | * in the unlikely event of having been preempted here. |
1882 | */ |
2404 | */ |
1883 | for (i = 4; --i; ) |
2405 | for (i = 4; --i; ) |
1884 | { |
2406 | { |
|
|
2407 | ev_tstamp diff; |
1885 | rtmn_diff = ev_rt_now - mn_now; |
2408 | rtmn_diff = ev_rt_now - mn_now; |
1886 | |
2409 | |
|
|
2410 | diff = odiff - rtmn_diff; |
|
|
2411 | |
1887 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2412 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1888 | return; /* all is well */ |
2413 | return; /* all is well */ |
1889 | |
2414 | |
1890 | ev_rt_now = ev_time (); |
2415 | ev_rt_now = ev_time (); |
1891 | mn_now = get_clock (); |
2416 | mn_now = get_clock (); |
1892 | now_floor = mn_now; |
2417 | now_floor = mn_now; |
1893 | } |
2418 | } |
1894 | |
2419 | |
|
|
2420 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2421 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1895 | # if EV_PERIODIC_ENABLE |
2422 | # if EV_PERIODIC_ENABLE |
1896 | periodics_reschedule (EV_A); |
2423 | periodics_reschedule (EV_A); |
1897 | # endif |
2424 | # endif |
1898 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1899 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1900 | } |
2425 | } |
1901 | else |
2426 | else |
1902 | #endif |
2427 | #endif |
1903 | { |
2428 | { |
1904 | ev_rt_now = ev_time (); |
2429 | ev_rt_now = ev_time (); |
1905 | |
2430 | |
1906 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2431 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1907 | { |
2432 | { |
|
|
2433 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2434 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1908 | #if EV_PERIODIC_ENABLE |
2435 | #if EV_PERIODIC_ENABLE |
1909 | periodics_reschedule (EV_A); |
2436 | periodics_reschedule (EV_A); |
1910 | #endif |
2437 | #endif |
1911 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1912 | for (i = 0; i < timercnt; ++i) |
|
|
1913 | { |
|
|
1914 | ANHE *he = timers + i + HEAP0; |
|
|
1915 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1916 | ANHE_at_cache (*he); |
|
|
1917 | } |
|
|
1918 | } |
2438 | } |
1919 | |
2439 | |
1920 | mn_now = ev_rt_now; |
2440 | mn_now = ev_rt_now; |
1921 | } |
2441 | } |
1922 | } |
2442 | } |
1923 | |
2443 | |
1924 | void |
2444 | void |
1925 | ev_ref (EV_P) |
|
|
1926 | { |
|
|
1927 | ++activecnt; |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | void |
|
|
1931 | ev_unref (EV_P) |
|
|
1932 | { |
|
|
1933 | --activecnt; |
|
|
1934 | } |
|
|
1935 | |
|
|
1936 | void |
|
|
1937 | ev_now_update (EV_P) |
|
|
1938 | { |
|
|
1939 | time_update (EV_A_ 1e100); |
|
|
1940 | } |
|
|
1941 | |
|
|
1942 | static int loop_done; |
|
|
1943 | |
|
|
1944 | void |
|
|
1945 | ev_loop (EV_P_ int flags) |
2445 | ev_run (EV_P_ int flags) |
1946 | { |
2446 | { |
|
|
2447 | #if EV_FEATURE_API |
|
|
2448 | ++loop_depth; |
|
|
2449 | #endif |
|
|
2450 | |
|
|
2451 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2452 | |
1947 | loop_done = EVUNLOOP_CANCEL; |
2453 | loop_done = EVBREAK_CANCEL; |
1948 | |
2454 | |
1949 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2455 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1950 | |
2456 | |
1951 | do |
2457 | do |
1952 | { |
2458 | { |
1953 | #if EV_VERIFY >= 2 |
2459 | #if EV_VERIFY >= 2 |
1954 | ev_loop_verify (EV_A); |
2460 | ev_verify (EV_A); |
1955 | #endif |
2461 | #endif |
1956 | |
2462 | |
1957 | #ifndef _WIN32 |
2463 | #ifndef _WIN32 |
1958 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2464 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1959 | if (expect_false (getpid () != curpid)) |
2465 | if (expect_false (getpid () != curpid)) |
… | |
… | |
1967 | /* we might have forked, so queue fork handlers */ |
2473 | /* we might have forked, so queue fork handlers */ |
1968 | if (expect_false (postfork)) |
2474 | if (expect_false (postfork)) |
1969 | if (forkcnt) |
2475 | if (forkcnt) |
1970 | { |
2476 | { |
1971 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2477 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1972 | call_pending (EV_A); |
2478 | EV_INVOKE_PENDING; |
1973 | } |
2479 | } |
1974 | #endif |
2480 | #endif |
1975 | |
2481 | |
|
|
2482 | #if EV_PREPARE_ENABLE |
1976 | /* queue prepare watchers (and execute them) */ |
2483 | /* queue prepare watchers (and execute them) */ |
1977 | if (expect_false (preparecnt)) |
2484 | if (expect_false (preparecnt)) |
1978 | { |
2485 | { |
1979 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2486 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1980 | call_pending (EV_A); |
2487 | EV_INVOKE_PENDING; |
1981 | } |
2488 | } |
|
|
2489 | #endif |
1982 | |
2490 | |
1983 | if (expect_false (!activecnt)) |
2491 | if (expect_false (loop_done)) |
1984 | break; |
2492 | break; |
1985 | |
2493 | |
1986 | /* we might have forked, so reify kernel state if necessary */ |
2494 | /* we might have forked, so reify kernel state if necessary */ |
1987 | if (expect_false (postfork)) |
2495 | if (expect_false (postfork)) |
1988 | loop_fork (EV_A); |
2496 | loop_fork (EV_A); |
… | |
… | |
1993 | /* calculate blocking time */ |
2501 | /* calculate blocking time */ |
1994 | { |
2502 | { |
1995 | ev_tstamp waittime = 0.; |
2503 | ev_tstamp waittime = 0.; |
1996 | ev_tstamp sleeptime = 0.; |
2504 | ev_tstamp sleeptime = 0.; |
1997 | |
2505 | |
|
|
2506 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2507 | ev_tstamp prev_mn_now = mn_now; |
|
|
2508 | |
|
|
2509 | /* update time to cancel out callback processing overhead */ |
|
|
2510 | time_update (EV_A_ 1e100); |
|
|
2511 | |
1998 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2512 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
1999 | { |
2513 | { |
2000 | /* update time to cancel out callback processing overhead */ |
|
|
2001 | time_update (EV_A_ 1e100); |
|
|
2002 | |
|
|
2003 | waittime = MAX_BLOCKTIME; |
2514 | waittime = MAX_BLOCKTIME; |
2004 | |
2515 | |
2005 | if (timercnt) |
2516 | if (timercnt) |
2006 | { |
2517 | { |
2007 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2518 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2014 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2525 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2015 | if (waittime > to) waittime = to; |
2526 | if (waittime > to) waittime = to; |
2016 | } |
2527 | } |
2017 | #endif |
2528 | #endif |
2018 | |
2529 | |
|
|
2530 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2019 | if (expect_false (waittime < timeout_blocktime)) |
2531 | if (expect_false (waittime < timeout_blocktime)) |
2020 | waittime = timeout_blocktime; |
2532 | waittime = timeout_blocktime; |
2021 | |
2533 | |
2022 | sleeptime = waittime - backend_fudge; |
2534 | /* extra check because io_blocktime is commonly 0 */ |
2023 | |
|
|
2024 | if (expect_true (sleeptime > io_blocktime)) |
2535 | if (expect_false (io_blocktime)) |
2025 | sleeptime = io_blocktime; |
|
|
2026 | |
|
|
2027 | if (sleeptime) |
|
|
2028 | { |
2536 | { |
|
|
2537 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2538 | |
|
|
2539 | if (sleeptime > waittime - backend_fudge) |
|
|
2540 | sleeptime = waittime - backend_fudge; |
|
|
2541 | |
|
|
2542 | if (expect_true (sleeptime > 0.)) |
|
|
2543 | { |
2029 | ev_sleep (sleeptime); |
2544 | ev_sleep (sleeptime); |
2030 | waittime -= sleeptime; |
2545 | waittime -= sleeptime; |
|
|
2546 | } |
2031 | } |
2547 | } |
2032 | } |
2548 | } |
2033 | |
2549 | |
|
|
2550 | #if EV_FEATURE_API |
2034 | ++loop_count; |
2551 | ++loop_count; |
|
|
2552 | #endif |
|
|
2553 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2035 | backend_poll (EV_A_ waittime); |
2554 | backend_poll (EV_A_ waittime); |
|
|
2555 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2036 | |
2556 | |
2037 | /* update ev_rt_now, do magic */ |
2557 | /* update ev_rt_now, do magic */ |
2038 | time_update (EV_A_ waittime + sleeptime); |
2558 | time_update (EV_A_ waittime + sleeptime); |
2039 | } |
2559 | } |
2040 | |
2560 | |
… | |
… | |
2047 | #if EV_IDLE_ENABLE |
2567 | #if EV_IDLE_ENABLE |
2048 | /* queue idle watchers unless other events are pending */ |
2568 | /* queue idle watchers unless other events are pending */ |
2049 | idle_reify (EV_A); |
2569 | idle_reify (EV_A); |
2050 | #endif |
2570 | #endif |
2051 | |
2571 | |
|
|
2572 | #if EV_CHECK_ENABLE |
2052 | /* queue check watchers, to be executed first */ |
2573 | /* queue check watchers, to be executed first */ |
2053 | if (expect_false (checkcnt)) |
2574 | if (expect_false (checkcnt)) |
2054 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2575 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2576 | #endif |
2055 | |
2577 | |
2056 | call_pending (EV_A); |
2578 | EV_INVOKE_PENDING; |
2057 | } |
2579 | } |
2058 | while (expect_true ( |
2580 | while (expect_true ( |
2059 | activecnt |
2581 | activecnt |
2060 | && !loop_done |
2582 | && !loop_done |
2061 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2583 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2062 | )); |
2584 | )); |
2063 | |
2585 | |
2064 | if (loop_done == EVUNLOOP_ONE) |
2586 | if (loop_done == EVBREAK_ONE) |
2065 | loop_done = EVUNLOOP_CANCEL; |
2587 | loop_done = EVBREAK_CANCEL; |
2066 | } |
|
|
2067 | |
2588 | |
|
|
2589 | #if EV_FEATURE_API |
|
|
2590 | --loop_depth; |
|
|
2591 | #endif |
|
|
2592 | } |
|
|
2593 | |
2068 | void |
2594 | void |
2069 | ev_unloop (EV_P_ int how) |
2595 | ev_break (EV_P_ int how) |
2070 | { |
2596 | { |
2071 | loop_done = how; |
2597 | loop_done = how; |
2072 | } |
2598 | } |
2073 | |
2599 | |
|
|
2600 | void |
|
|
2601 | ev_ref (EV_P) |
|
|
2602 | { |
|
|
2603 | ++activecnt; |
|
|
2604 | } |
|
|
2605 | |
|
|
2606 | void |
|
|
2607 | ev_unref (EV_P) |
|
|
2608 | { |
|
|
2609 | --activecnt; |
|
|
2610 | } |
|
|
2611 | |
|
|
2612 | void |
|
|
2613 | ev_now_update (EV_P) |
|
|
2614 | { |
|
|
2615 | time_update (EV_A_ 1e100); |
|
|
2616 | } |
|
|
2617 | |
|
|
2618 | void |
|
|
2619 | ev_suspend (EV_P) |
|
|
2620 | { |
|
|
2621 | ev_now_update (EV_A); |
|
|
2622 | } |
|
|
2623 | |
|
|
2624 | void |
|
|
2625 | ev_resume (EV_P) |
|
|
2626 | { |
|
|
2627 | ev_tstamp mn_prev = mn_now; |
|
|
2628 | |
|
|
2629 | ev_now_update (EV_A); |
|
|
2630 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2631 | #if EV_PERIODIC_ENABLE |
|
|
2632 | /* TODO: really do this? */ |
|
|
2633 | periodics_reschedule (EV_A); |
|
|
2634 | #endif |
|
|
2635 | } |
|
|
2636 | |
2074 | /*****************************************************************************/ |
2637 | /*****************************************************************************/ |
|
|
2638 | /* singly-linked list management, used when the expected list length is short */ |
2075 | |
2639 | |
2076 | void inline_size |
2640 | inline_size void |
2077 | wlist_add (WL *head, WL elem) |
2641 | wlist_add (WL *head, WL elem) |
2078 | { |
2642 | { |
2079 | elem->next = *head; |
2643 | elem->next = *head; |
2080 | *head = elem; |
2644 | *head = elem; |
2081 | } |
2645 | } |
2082 | |
2646 | |
2083 | void inline_size |
2647 | inline_size void |
2084 | wlist_del (WL *head, WL elem) |
2648 | wlist_del (WL *head, WL elem) |
2085 | { |
2649 | { |
2086 | while (*head) |
2650 | while (*head) |
2087 | { |
2651 | { |
2088 | if (*head == elem) |
2652 | if (expect_true (*head == elem)) |
2089 | { |
2653 | { |
2090 | *head = elem->next; |
2654 | *head = elem->next; |
2091 | return; |
2655 | break; |
2092 | } |
2656 | } |
2093 | |
2657 | |
2094 | head = &(*head)->next; |
2658 | head = &(*head)->next; |
2095 | } |
2659 | } |
2096 | } |
2660 | } |
2097 | |
2661 | |
2098 | void inline_speed |
2662 | /* internal, faster, version of ev_clear_pending */ |
|
|
2663 | inline_speed void |
2099 | clear_pending (EV_P_ W w) |
2664 | clear_pending (EV_P_ W w) |
2100 | { |
2665 | { |
2101 | if (w->pending) |
2666 | if (w->pending) |
2102 | { |
2667 | { |
2103 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2668 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2104 | w->pending = 0; |
2669 | w->pending = 0; |
2105 | } |
2670 | } |
2106 | } |
2671 | } |
2107 | |
2672 | |
2108 | int |
2673 | int |
… | |
… | |
2112 | int pending = w_->pending; |
2677 | int pending = w_->pending; |
2113 | |
2678 | |
2114 | if (expect_true (pending)) |
2679 | if (expect_true (pending)) |
2115 | { |
2680 | { |
2116 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2681 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2682 | p->w = (W)&pending_w; |
2117 | w_->pending = 0; |
2683 | w_->pending = 0; |
2118 | p->w = 0; |
|
|
2119 | return p->events; |
2684 | return p->events; |
2120 | } |
2685 | } |
2121 | else |
2686 | else |
2122 | return 0; |
2687 | return 0; |
2123 | } |
2688 | } |
2124 | |
2689 | |
2125 | void inline_size |
2690 | inline_size void |
2126 | pri_adjust (EV_P_ W w) |
2691 | pri_adjust (EV_P_ W w) |
2127 | { |
2692 | { |
2128 | int pri = w->priority; |
2693 | int pri = ev_priority (w); |
2129 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2694 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2130 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2695 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2131 | w->priority = pri; |
2696 | ev_set_priority (w, pri); |
2132 | } |
2697 | } |
2133 | |
2698 | |
2134 | void inline_speed |
2699 | inline_speed void |
2135 | ev_start (EV_P_ W w, int active) |
2700 | ev_start (EV_P_ W w, int active) |
2136 | { |
2701 | { |
2137 | pri_adjust (EV_A_ w); |
2702 | pri_adjust (EV_A_ w); |
2138 | w->active = active; |
2703 | w->active = active; |
2139 | ev_ref (EV_A); |
2704 | ev_ref (EV_A); |
2140 | } |
2705 | } |
2141 | |
2706 | |
2142 | void inline_size |
2707 | inline_size void |
2143 | ev_stop (EV_P_ W w) |
2708 | ev_stop (EV_P_ W w) |
2144 | { |
2709 | { |
2145 | ev_unref (EV_A); |
2710 | ev_unref (EV_A); |
2146 | w->active = 0; |
2711 | w->active = 0; |
2147 | } |
2712 | } |
… | |
… | |
2155 | |
2720 | |
2156 | if (expect_false (ev_is_active (w))) |
2721 | if (expect_false (ev_is_active (w))) |
2157 | return; |
2722 | return; |
2158 | |
2723 | |
2159 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2724 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2160 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2725 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2161 | |
2726 | |
2162 | EV_FREQUENT_CHECK; |
2727 | EV_FREQUENT_CHECK; |
2163 | |
2728 | |
2164 | ev_start (EV_A_ (W)w, 1); |
2729 | ev_start (EV_A_ (W)w, 1); |
2165 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2730 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2166 | wlist_add (&anfds[fd].head, (WL)w); |
2731 | wlist_add (&anfds[fd].head, (WL)w); |
2167 | |
2732 | |
2168 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2733 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2169 | w->events &= ~EV_IOFDSET; |
2734 | w->events &= ~EV__IOFDSET; |
2170 | |
2735 | |
2171 | EV_FREQUENT_CHECK; |
2736 | EV_FREQUENT_CHECK; |
2172 | } |
2737 | } |
2173 | |
2738 | |
2174 | void noinline |
2739 | void noinline |
… | |
… | |
2183 | EV_FREQUENT_CHECK; |
2748 | EV_FREQUENT_CHECK; |
2184 | |
2749 | |
2185 | wlist_del (&anfds[w->fd].head, (WL)w); |
2750 | wlist_del (&anfds[w->fd].head, (WL)w); |
2186 | ev_stop (EV_A_ (W)w); |
2751 | ev_stop (EV_A_ (W)w); |
2187 | |
2752 | |
2188 | fd_change (EV_A_ w->fd, 1); |
2753 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2189 | |
2754 | |
2190 | EV_FREQUENT_CHECK; |
2755 | EV_FREQUENT_CHECK; |
2191 | } |
2756 | } |
2192 | |
2757 | |
2193 | void noinline |
2758 | void noinline |
… | |
… | |
2235 | timers [active] = timers [timercnt + HEAP0]; |
2800 | timers [active] = timers [timercnt + HEAP0]; |
2236 | adjustheap (timers, timercnt, active); |
2801 | adjustheap (timers, timercnt, active); |
2237 | } |
2802 | } |
2238 | } |
2803 | } |
2239 | |
2804 | |
2240 | EV_FREQUENT_CHECK; |
|
|
2241 | |
|
|
2242 | ev_at (w) -= mn_now; |
2805 | ev_at (w) -= mn_now; |
2243 | |
2806 | |
2244 | ev_stop (EV_A_ (W)w); |
2807 | ev_stop (EV_A_ (W)w); |
|
|
2808 | |
|
|
2809 | EV_FREQUENT_CHECK; |
2245 | } |
2810 | } |
2246 | |
2811 | |
2247 | void noinline |
2812 | void noinline |
2248 | ev_timer_again (EV_P_ ev_timer *w) |
2813 | ev_timer_again (EV_P_ ev_timer *w) |
2249 | { |
2814 | { |
… | |
… | |
2267 | } |
2832 | } |
2268 | |
2833 | |
2269 | EV_FREQUENT_CHECK; |
2834 | EV_FREQUENT_CHECK; |
2270 | } |
2835 | } |
2271 | |
2836 | |
|
|
2837 | ev_tstamp |
|
|
2838 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2839 | { |
|
|
2840 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2841 | } |
|
|
2842 | |
2272 | #if EV_PERIODIC_ENABLE |
2843 | #if EV_PERIODIC_ENABLE |
2273 | void noinline |
2844 | void noinline |
2274 | ev_periodic_start (EV_P_ ev_periodic *w) |
2845 | ev_periodic_start (EV_P_ ev_periodic *w) |
2275 | { |
2846 | { |
2276 | if (expect_false (ev_is_active (w))) |
2847 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2279 | if (w->reschedule_cb) |
2850 | if (w->reschedule_cb) |
2280 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2851 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2281 | else if (w->interval) |
2852 | else if (w->interval) |
2282 | { |
2853 | { |
2283 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2854 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2284 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2855 | periodic_recalc (EV_A_ w); |
2285 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2286 | } |
2856 | } |
2287 | else |
2857 | else |
2288 | ev_at (w) = w->offset; |
2858 | ev_at (w) = w->offset; |
2289 | |
2859 | |
2290 | EV_FREQUENT_CHECK; |
2860 | EV_FREQUENT_CHECK; |
… | |
… | |
2322 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2892 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2323 | adjustheap (periodics, periodiccnt, active); |
2893 | adjustheap (periodics, periodiccnt, active); |
2324 | } |
2894 | } |
2325 | } |
2895 | } |
2326 | |
2896 | |
2327 | EV_FREQUENT_CHECK; |
|
|
2328 | |
|
|
2329 | ev_stop (EV_A_ (W)w); |
2897 | ev_stop (EV_A_ (W)w); |
|
|
2898 | |
|
|
2899 | EV_FREQUENT_CHECK; |
2330 | } |
2900 | } |
2331 | |
2901 | |
2332 | void noinline |
2902 | void noinline |
2333 | ev_periodic_again (EV_P_ ev_periodic *w) |
2903 | ev_periodic_again (EV_P_ ev_periodic *w) |
2334 | { |
2904 | { |
… | |
… | |
2340 | |
2910 | |
2341 | #ifndef SA_RESTART |
2911 | #ifndef SA_RESTART |
2342 | # define SA_RESTART 0 |
2912 | # define SA_RESTART 0 |
2343 | #endif |
2913 | #endif |
2344 | |
2914 | |
|
|
2915 | #if EV_SIGNAL_ENABLE |
|
|
2916 | |
2345 | void noinline |
2917 | void noinline |
2346 | ev_signal_start (EV_P_ ev_signal *w) |
2918 | ev_signal_start (EV_P_ ev_signal *w) |
2347 | { |
2919 | { |
2348 | #if EV_MULTIPLICITY |
|
|
2349 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2350 | #endif |
|
|
2351 | if (expect_false (ev_is_active (w))) |
2920 | if (expect_false (ev_is_active (w))) |
2352 | return; |
2921 | return; |
2353 | |
2922 | |
2354 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2923 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2355 | |
2924 | |
2356 | evpipe_init (EV_A); |
2925 | #if EV_MULTIPLICITY |
|
|
2926 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2927 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2357 | |
2928 | |
2358 | EV_FREQUENT_CHECK; |
2929 | signals [w->signum - 1].loop = EV_A; |
|
|
2930 | #endif |
2359 | |
2931 | |
|
|
2932 | EV_FREQUENT_CHECK; |
|
|
2933 | |
|
|
2934 | #if EV_USE_SIGNALFD |
|
|
2935 | if (sigfd == -2) |
2360 | { |
2936 | { |
2361 | #ifndef _WIN32 |
2937 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2362 | sigset_t full, prev; |
2938 | if (sigfd < 0 && errno == EINVAL) |
2363 | sigfillset (&full); |
2939 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2364 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2365 | #endif |
|
|
2366 | |
2940 | |
2367 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2941 | if (sigfd >= 0) |
|
|
2942 | { |
|
|
2943 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2368 | |
2944 | |
2369 | #ifndef _WIN32 |
2945 | sigemptyset (&sigfd_set); |
2370 | sigprocmask (SIG_SETMASK, &prev, 0); |
2946 | |
2371 | #endif |
2947 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2948 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2949 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2950 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2951 | } |
2372 | } |
2952 | } |
|
|
2953 | |
|
|
2954 | if (sigfd >= 0) |
|
|
2955 | { |
|
|
2956 | /* TODO: check .head */ |
|
|
2957 | sigaddset (&sigfd_set, w->signum); |
|
|
2958 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2959 | |
|
|
2960 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2961 | } |
|
|
2962 | #endif |
2373 | |
2963 | |
2374 | ev_start (EV_A_ (W)w, 1); |
2964 | ev_start (EV_A_ (W)w, 1); |
2375 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2965 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2376 | |
2966 | |
2377 | if (!((WL)w)->next) |
2967 | if (!((WL)w)->next) |
|
|
2968 | # if EV_USE_SIGNALFD |
|
|
2969 | if (sigfd < 0) /*TODO*/ |
|
|
2970 | # endif |
2378 | { |
2971 | { |
2379 | #if _WIN32 |
2972 | # ifdef _WIN32 |
|
|
2973 | evpipe_init (EV_A); |
|
|
2974 | |
2380 | signal (w->signum, ev_sighandler); |
2975 | signal (w->signum, ev_sighandler); |
2381 | #else |
2976 | # else |
2382 | struct sigaction sa; |
2977 | struct sigaction sa; |
|
|
2978 | |
|
|
2979 | evpipe_init (EV_A); |
|
|
2980 | |
2383 | sa.sa_handler = ev_sighandler; |
2981 | sa.sa_handler = ev_sighandler; |
2384 | sigfillset (&sa.sa_mask); |
2982 | sigfillset (&sa.sa_mask); |
2385 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2983 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2386 | sigaction (w->signum, &sa, 0); |
2984 | sigaction (w->signum, &sa, 0); |
|
|
2985 | |
|
|
2986 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2987 | { |
|
|
2988 | sigemptyset (&sa.sa_mask); |
|
|
2989 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2990 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2991 | } |
2387 | #endif |
2992 | #endif |
2388 | } |
2993 | } |
2389 | |
2994 | |
2390 | EV_FREQUENT_CHECK; |
2995 | EV_FREQUENT_CHECK; |
2391 | } |
2996 | } |
2392 | |
2997 | |
2393 | void noinline |
2998 | void noinline |
… | |
… | |
2401 | |
3006 | |
2402 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3007 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2403 | ev_stop (EV_A_ (W)w); |
3008 | ev_stop (EV_A_ (W)w); |
2404 | |
3009 | |
2405 | if (!signals [w->signum - 1].head) |
3010 | if (!signals [w->signum - 1].head) |
|
|
3011 | { |
|
|
3012 | #if EV_MULTIPLICITY |
|
|
3013 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3014 | #endif |
|
|
3015 | #if EV_USE_SIGNALFD |
|
|
3016 | if (sigfd >= 0) |
|
|
3017 | { |
|
|
3018 | sigset_t ss; |
|
|
3019 | |
|
|
3020 | sigemptyset (&ss); |
|
|
3021 | sigaddset (&ss, w->signum); |
|
|
3022 | sigdelset (&sigfd_set, w->signum); |
|
|
3023 | |
|
|
3024 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3025 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3026 | } |
|
|
3027 | else |
|
|
3028 | #endif |
2406 | signal (w->signum, SIG_DFL); |
3029 | signal (w->signum, SIG_DFL); |
|
|
3030 | } |
2407 | |
3031 | |
2408 | EV_FREQUENT_CHECK; |
3032 | EV_FREQUENT_CHECK; |
2409 | } |
3033 | } |
|
|
3034 | |
|
|
3035 | #endif |
|
|
3036 | |
|
|
3037 | #if EV_CHILD_ENABLE |
2410 | |
3038 | |
2411 | void |
3039 | void |
2412 | ev_child_start (EV_P_ ev_child *w) |
3040 | ev_child_start (EV_P_ ev_child *w) |
2413 | { |
3041 | { |
2414 | #if EV_MULTIPLICITY |
3042 | #if EV_MULTIPLICITY |
… | |
… | |
2418 | return; |
3046 | return; |
2419 | |
3047 | |
2420 | EV_FREQUENT_CHECK; |
3048 | EV_FREQUENT_CHECK; |
2421 | |
3049 | |
2422 | ev_start (EV_A_ (W)w, 1); |
3050 | ev_start (EV_A_ (W)w, 1); |
2423 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3051 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2424 | |
3052 | |
2425 | EV_FREQUENT_CHECK; |
3053 | EV_FREQUENT_CHECK; |
2426 | } |
3054 | } |
2427 | |
3055 | |
2428 | void |
3056 | void |
… | |
… | |
2432 | if (expect_false (!ev_is_active (w))) |
3060 | if (expect_false (!ev_is_active (w))) |
2433 | return; |
3061 | return; |
2434 | |
3062 | |
2435 | EV_FREQUENT_CHECK; |
3063 | EV_FREQUENT_CHECK; |
2436 | |
3064 | |
2437 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3065 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2438 | ev_stop (EV_A_ (W)w); |
3066 | ev_stop (EV_A_ (W)w); |
2439 | |
3067 | |
2440 | EV_FREQUENT_CHECK; |
3068 | EV_FREQUENT_CHECK; |
2441 | } |
3069 | } |
|
|
3070 | |
|
|
3071 | #endif |
2442 | |
3072 | |
2443 | #if EV_STAT_ENABLE |
3073 | #if EV_STAT_ENABLE |
2444 | |
3074 | |
2445 | # ifdef _WIN32 |
3075 | # ifdef _WIN32 |
2446 | # undef lstat |
3076 | # undef lstat |
… | |
… | |
2452 | #define MIN_STAT_INTERVAL 0.1074891 |
3082 | #define MIN_STAT_INTERVAL 0.1074891 |
2453 | |
3083 | |
2454 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3084 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2455 | |
3085 | |
2456 | #if EV_USE_INOTIFY |
3086 | #if EV_USE_INOTIFY |
2457 | # define EV_INOTIFY_BUFSIZE 8192 |
3087 | |
|
|
3088 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3089 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2458 | |
3090 | |
2459 | static void noinline |
3091 | static void noinline |
2460 | infy_add (EV_P_ ev_stat *w) |
3092 | infy_add (EV_P_ ev_stat *w) |
2461 | { |
3093 | { |
2462 | 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); |
3094 | 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); |
2463 | |
3095 | |
2464 | if (w->wd < 0) |
3096 | if (w->wd >= 0) |
|
|
3097 | { |
|
|
3098 | struct statfs sfs; |
|
|
3099 | |
|
|
3100 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3101 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3102 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3103 | |
|
|
3104 | if (!fs_2625) |
|
|
3105 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3106 | else if (!statfs (w->path, &sfs) |
|
|
3107 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3108 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3109 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3110 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3111 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3112 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3113 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3114 | else |
|
|
3115 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2465 | { |
3116 | } |
|
|
3117 | else |
|
|
3118 | { |
|
|
3119 | /* can't use inotify, continue to stat */ |
2466 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3120 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2467 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2468 | |
3121 | |
2469 | /* monitor some parent directory for speedup hints */ |
3122 | /* if path is not there, monitor some parent directory for speedup hints */ |
2470 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3123 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2471 | /* but an efficiency issue only */ |
3124 | /* but an efficiency issue only */ |
2472 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3125 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2473 | { |
3126 | { |
2474 | char path [4096]; |
3127 | char path [4096]; |
… | |
… | |
2484 | if (!pend || pend == path) |
3137 | if (!pend || pend == path) |
2485 | break; |
3138 | break; |
2486 | |
3139 | |
2487 | *pend = 0; |
3140 | *pend = 0; |
2488 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3141 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2489 | } |
3142 | } |
2490 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3143 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2491 | } |
3144 | } |
2492 | } |
3145 | } |
2493 | |
3146 | |
2494 | if (w->wd >= 0) |
3147 | if (w->wd >= 0) |
2495 | { |
|
|
2496 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3148 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2497 | |
3149 | |
2498 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3150 | /* now re-arm timer, if required */ |
2499 | /* unless the filesystem it known to be local, we therefore still poll */ |
3151 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2500 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2501 | struct statfs sfs; |
|
|
2502 | |
|
|
2503 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2504 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2505 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2506 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2507 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2508 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2509 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2510 | return; |
|
|
2511 | |
|
|
2512 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2513 | ev_timer_again (EV_A_ &w->timer); |
3152 | ev_timer_again (EV_A_ &w->timer); |
2514 | } |
3153 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2515 | } |
3154 | } |
2516 | |
3155 | |
2517 | static void noinline |
3156 | static void noinline |
2518 | infy_del (EV_P_ ev_stat *w) |
3157 | infy_del (EV_P_ ev_stat *w) |
2519 | { |
3158 | { |
… | |
… | |
2522 | |
3161 | |
2523 | if (wd < 0) |
3162 | if (wd < 0) |
2524 | return; |
3163 | return; |
2525 | |
3164 | |
2526 | w->wd = -2; |
3165 | w->wd = -2; |
2527 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3166 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2528 | wlist_del (&fs_hash [slot].head, (WL)w); |
3167 | wlist_del (&fs_hash [slot].head, (WL)w); |
2529 | |
3168 | |
2530 | /* remove this watcher, if others are watching it, they will rearm */ |
3169 | /* remove this watcher, if others are watching it, they will rearm */ |
2531 | inotify_rm_watch (fs_fd, wd); |
3170 | inotify_rm_watch (fs_fd, wd); |
2532 | } |
3171 | } |
… | |
… | |
2534 | static void noinline |
3173 | static void noinline |
2535 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3174 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2536 | { |
3175 | { |
2537 | if (slot < 0) |
3176 | if (slot < 0) |
2538 | /* overflow, need to check for all hash slots */ |
3177 | /* overflow, need to check for all hash slots */ |
2539 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3178 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2540 | infy_wd (EV_A_ slot, wd, ev); |
3179 | infy_wd (EV_A_ slot, wd, ev); |
2541 | else |
3180 | else |
2542 | { |
3181 | { |
2543 | WL w_; |
3182 | WL w_; |
2544 | |
3183 | |
2545 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3184 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2546 | { |
3185 | { |
2547 | ev_stat *w = (ev_stat *)w_; |
3186 | ev_stat *w = (ev_stat *)w_; |
2548 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3187 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2549 | |
3188 | |
2550 | if (w->wd == wd || wd == -1) |
3189 | if (w->wd == wd || wd == -1) |
2551 | { |
3190 | { |
2552 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3191 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2553 | { |
3192 | { |
2554 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3193 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2555 | w->wd = -1; |
3194 | w->wd = -1; |
2556 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3195 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2557 | } |
3196 | } |
2558 | |
3197 | |
2559 | stat_timer_cb (EV_A_ &w->timer, 0); |
3198 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2564 | |
3203 | |
2565 | static void |
3204 | static void |
2566 | infy_cb (EV_P_ ev_io *w, int revents) |
3205 | infy_cb (EV_P_ ev_io *w, int revents) |
2567 | { |
3206 | { |
2568 | char buf [EV_INOTIFY_BUFSIZE]; |
3207 | char buf [EV_INOTIFY_BUFSIZE]; |
2569 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2570 | int ofs; |
3208 | int ofs; |
2571 | int len = read (fs_fd, buf, sizeof (buf)); |
3209 | int len = read (fs_fd, buf, sizeof (buf)); |
2572 | |
3210 | |
2573 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3211 | for (ofs = 0; ofs < len; ) |
|
|
3212 | { |
|
|
3213 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2574 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3214 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3215 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3216 | } |
2575 | } |
3217 | } |
2576 | |
3218 | |
2577 | void inline_size |
3219 | inline_size void |
2578 | check_2625 (EV_P) |
3220 | ev_check_2625 (EV_P) |
2579 | { |
3221 | { |
2580 | /* kernels < 2.6.25 are borked |
3222 | /* kernels < 2.6.25 are borked |
2581 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3223 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2582 | */ |
3224 | */ |
2583 | struct utsname buf; |
3225 | if (ev_linux_version () < 0x020619) |
2584 | int major, minor, micro; |
|
|
2585 | |
|
|
2586 | if (uname (&buf)) |
|
|
2587 | return; |
3226 | return; |
2588 | |
3227 | |
2589 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2590 | return; |
|
|
2591 | |
|
|
2592 | if (major < 2 |
|
|
2593 | || (major == 2 && minor < 6) |
|
|
2594 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2595 | return; |
|
|
2596 | |
|
|
2597 | fs_2625 = 1; |
3228 | fs_2625 = 1; |
2598 | } |
3229 | } |
2599 | |
3230 | |
2600 | void inline_size |
3231 | inline_size int |
|
|
3232 | infy_newfd (void) |
|
|
3233 | { |
|
|
3234 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3235 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3236 | if (fd >= 0) |
|
|
3237 | return fd; |
|
|
3238 | #endif |
|
|
3239 | return inotify_init (); |
|
|
3240 | } |
|
|
3241 | |
|
|
3242 | inline_size void |
2601 | infy_init (EV_P) |
3243 | infy_init (EV_P) |
2602 | { |
3244 | { |
2603 | if (fs_fd != -2) |
3245 | if (fs_fd != -2) |
2604 | return; |
3246 | return; |
2605 | |
3247 | |
2606 | fs_fd = -1; |
3248 | fs_fd = -1; |
2607 | |
3249 | |
2608 | check_2625 (EV_A); |
3250 | ev_check_2625 (EV_A); |
2609 | |
3251 | |
2610 | fs_fd = inotify_init (); |
3252 | fs_fd = infy_newfd (); |
2611 | |
3253 | |
2612 | if (fs_fd >= 0) |
3254 | if (fs_fd >= 0) |
2613 | { |
3255 | { |
|
|
3256 | fd_intern (fs_fd); |
2614 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3257 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2615 | ev_set_priority (&fs_w, EV_MAXPRI); |
3258 | ev_set_priority (&fs_w, EV_MAXPRI); |
2616 | ev_io_start (EV_A_ &fs_w); |
3259 | ev_io_start (EV_A_ &fs_w); |
|
|
3260 | ev_unref (EV_A); |
2617 | } |
3261 | } |
2618 | } |
3262 | } |
2619 | |
3263 | |
2620 | void inline_size |
3264 | inline_size void |
2621 | infy_fork (EV_P) |
3265 | infy_fork (EV_P) |
2622 | { |
3266 | { |
2623 | int slot; |
3267 | int slot; |
2624 | |
3268 | |
2625 | if (fs_fd < 0) |
3269 | if (fs_fd < 0) |
2626 | return; |
3270 | return; |
2627 | |
3271 | |
|
|
3272 | ev_ref (EV_A); |
|
|
3273 | ev_io_stop (EV_A_ &fs_w); |
2628 | close (fs_fd); |
3274 | close (fs_fd); |
2629 | fs_fd = inotify_init (); |
3275 | fs_fd = infy_newfd (); |
2630 | |
3276 | |
|
|
3277 | if (fs_fd >= 0) |
|
|
3278 | { |
|
|
3279 | fd_intern (fs_fd); |
|
|
3280 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3281 | ev_io_start (EV_A_ &fs_w); |
|
|
3282 | ev_unref (EV_A); |
|
|
3283 | } |
|
|
3284 | |
2631 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3285 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2632 | { |
3286 | { |
2633 | WL w_ = fs_hash [slot].head; |
3287 | WL w_ = fs_hash [slot].head; |
2634 | fs_hash [slot].head = 0; |
3288 | fs_hash [slot].head = 0; |
2635 | |
3289 | |
2636 | while (w_) |
3290 | while (w_) |
… | |
… | |
2641 | w->wd = -1; |
3295 | w->wd = -1; |
2642 | |
3296 | |
2643 | if (fs_fd >= 0) |
3297 | if (fs_fd >= 0) |
2644 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3298 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2645 | else |
3299 | else |
|
|
3300 | { |
|
|
3301 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3302 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2646 | ev_timer_again (EV_A_ &w->timer); |
3303 | ev_timer_again (EV_A_ &w->timer); |
|
|
3304 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3305 | } |
2647 | } |
3306 | } |
2648 | } |
3307 | } |
2649 | } |
3308 | } |
2650 | |
3309 | |
2651 | #endif |
3310 | #endif |
… | |
… | |
2668 | static void noinline |
3327 | static void noinline |
2669 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3328 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2670 | { |
3329 | { |
2671 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3330 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2672 | |
3331 | |
2673 | /* we copy this here each the time so that */ |
3332 | ev_statdata prev = w->attr; |
2674 | /* prev has the old value when the callback gets invoked */ |
|
|
2675 | w->prev = w->attr; |
|
|
2676 | ev_stat_stat (EV_A_ w); |
3333 | ev_stat_stat (EV_A_ w); |
2677 | |
3334 | |
2678 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3335 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2679 | if ( |
3336 | if ( |
2680 | w->prev.st_dev != w->attr.st_dev |
3337 | prev.st_dev != w->attr.st_dev |
2681 | || w->prev.st_ino != w->attr.st_ino |
3338 | || prev.st_ino != w->attr.st_ino |
2682 | || w->prev.st_mode != w->attr.st_mode |
3339 | || prev.st_mode != w->attr.st_mode |
2683 | || w->prev.st_nlink != w->attr.st_nlink |
3340 | || prev.st_nlink != w->attr.st_nlink |
2684 | || w->prev.st_uid != w->attr.st_uid |
3341 | || prev.st_uid != w->attr.st_uid |
2685 | || w->prev.st_gid != w->attr.st_gid |
3342 | || prev.st_gid != w->attr.st_gid |
2686 | || w->prev.st_rdev != w->attr.st_rdev |
3343 | || prev.st_rdev != w->attr.st_rdev |
2687 | || w->prev.st_size != w->attr.st_size |
3344 | || prev.st_size != w->attr.st_size |
2688 | || w->prev.st_atime != w->attr.st_atime |
3345 | || prev.st_atime != w->attr.st_atime |
2689 | || w->prev.st_mtime != w->attr.st_mtime |
3346 | || prev.st_mtime != w->attr.st_mtime |
2690 | || w->prev.st_ctime != w->attr.st_ctime |
3347 | || prev.st_ctime != w->attr.st_ctime |
2691 | ) { |
3348 | ) { |
|
|
3349 | /* we only update w->prev on actual differences */ |
|
|
3350 | /* in case we test more often than invoke the callback, */ |
|
|
3351 | /* to ensure that prev is always different to attr */ |
|
|
3352 | w->prev = prev; |
|
|
3353 | |
2692 | #if EV_USE_INOTIFY |
3354 | #if EV_USE_INOTIFY |
2693 | if (fs_fd >= 0) |
3355 | if (fs_fd >= 0) |
2694 | { |
3356 | { |
2695 | infy_del (EV_A_ w); |
3357 | infy_del (EV_A_ w); |
2696 | infy_add (EV_A_ w); |
3358 | infy_add (EV_A_ w); |
… | |
… | |
2721 | |
3383 | |
2722 | if (fs_fd >= 0) |
3384 | if (fs_fd >= 0) |
2723 | infy_add (EV_A_ w); |
3385 | infy_add (EV_A_ w); |
2724 | else |
3386 | else |
2725 | #endif |
3387 | #endif |
|
|
3388 | { |
2726 | ev_timer_again (EV_A_ &w->timer); |
3389 | ev_timer_again (EV_A_ &w->timer); |
|
|
3390 | ev_unref (EV_A); |
|
|
3391 | } |
2727 | |
3392 | |
2728 | ev_start (EV_A_ (W)w, 1); |
3393 | ev_start (EV_A_ (W)w, 1); |
2729 | |
3394 | |
2730 | EV_FREQUENT_CHECK; |
3395 | EV_FREQUENT_CHECK; |
2731 | } |
3396 | } |
… | |
… | |
2740 | EV_FREQUENT_CHECK; |
3405 | EV_FREQUENT_CHECK; |
2741 | |
3406 | |
2742 | #if EV_USE_INOTIFY |
3407 | #if EV_USE_INOTIFY |
2743 | infy_del (EV_A_ w); |
3408 | infy_del (EV_A_ w); |
2744 | #endif |
3409 | #endif |
|
|
3410 | |
|
|
3411 | if (ev_is_active (&w->timer)) |
|
|
3412 | { |
|
|
3413 | ev_ref (EV_A); |
2745 | ev_timer_stop (EV_A_ &w->timer); |
3414 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3415 | } |
2746 | |
3416 | |
2747 | ev_stop (EV_A_ (W)w); |
3417 | ev_stop (EV_A_ (W)w); |
2748 | |
3418 | |
2749 | EV_FREQUENT_CHECK; |
3419 | EV_FREQUENT_CHECK; |
2750 | } |
3420 | } |
… | |
… | |
2795 | |
3465 | |
2796 | EV_FREQUENT_CHECK; |
3466 | EV_FREQUENT_CHECK; |
2797 | } |
3467 | } |
2798 | #endif |
3468 | #endif |
2799 | |
3469 | |
|
|
3470 | #if EV_PREPARE_ENABLE |
2800 | void |
3471 | void |
2801 | ev_prepare_start (EV_P_ ev_prepare *w) |
3472 | ev_prepare_start (EV_P_ ev_prepare *w) |
2802 | { |
3473 | { |
2803 | if (expect_false (ev_is_active (w))) |
3474 | if (expect_false (ev_is_active (w))) |
2804 | return; |
3475 | return; |
… | |
… | |
2830 | |
3501 | |
2831 | ev_stop (EV_A_ (W)w); |
3502 | ev_stop (EV_A_ (W)w); |
2832 | |
3503 | |
2833 | EV_FREQUENT_CHECK; |
3504 | EV_FREQUENT_CHECK; |
2834 | } |
3505 | } |
|
|
3506 | #endif |
2835 | |
3507 | |
|
|
3508 | #if EV_CHECK_ENABLE |
2836 | void |
3509 | void |
2837 | ev_check_start (EV_P_ ev_check *w) |
3510 | ev_check_start (EV_P_ ev_check *w) |
2838 | { |
3511 | { |
2839 | if (expect_false (ev_is_active (w))) |
3512 | if (expect_false (ev_is_active (w))) |
2840 | return; |
3513 | return; |
… | |
… | |
2866 | |
3539 | |
2867 | ev_stop (EV_A_ (W)w); |
3540 | ev_stop (EV_A_ (W)w); |
2868 | |
3541 | |
2869 | EV_FREQUENT_CHECK; |
3542 | EV_FREQUENT_CHECK; |
2870 | } |
3543 | } |
|
|
3544 | #endif |
2871 | |
3545 | |
2872 | #if EV_EMBED_ENABLE |
3546 | #if EV_EMBED_ENABLE |
2873 | void noinline |
3547 | void noinline |
2874 | ev_embed_sweep (EV_P_ ev_embed *w) |
3548 | ev_embed_sweep (EV_P_ ev_embed *w) |
2875 | { |
3549 | { |
2876 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3550 | ev_run (w->other, EVRUN_NOWAIT); |
2877 | } |
3551 | } |
2878 | |
3552 | |
2879 | static void |
3553 | static void |
2880 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3554 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2881 | { |
3555 | { |
2882 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3556 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2883 | |
3557 | |
2884 | if (ev_cb (w)) |
3558 | if (ev_cb (w)) |
2885 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3559 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2886 | else |
3560 | else |
2887 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3561 | ev_run (w->other, EVRUN_NOWAIT); |
2888 | } |
3562 | } |
2889 | |
3563 | |
2890 | static void |
3564 | static void |
2891 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3565 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2892 | { |
3566 | { |
2893 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3567 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2894 | |
3568 | |
2895 | { |
3569 | { |
2896 | struct ev_loop *loop = w->other; |
3570 | EV_P = w->other; |
2897 | |
3571 | |
2898 | while (fdchangecnt) |
3572 | while (fdchangecnt) |
2899 | { |
3573 | { |
2900 | fd_reify (EV_A); |
3574 | fd_reify (EV_A); |
2901 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3575 | ev_run (EV_A_ EVRUN_NOWAIT); |
2902 | } |
3576 | } |
2903 | } |
3577 | } |
2904 | } |
3578 | } |
2905 | |
3579 | |
2906 | static void |
3580 | static void |
… | |
… | |
2909 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3583 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2910 | |
3584 | |
2911 | ev_embed_stop (EV_A_ w); |
3585 | ev_embed_stop (EV_A_ w); |
2912 | |
3586 | |
2913 | { |
3587 | { |
2914 | struct ev_loop *loop = w->other; |
3588 | EV_P = w->other; |
2915 | |
3589 | |
2916 | ev_loop_fork (EV_A); |
3590 | ev_loop_fork (EV_A); |
2917 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3591 | ev_run (EV_A_ EVRUN_NOWAIT); |
2918 | } |
3592 | } |
2919 | |
3593 | |
2920 | ev_embed_start (EV_A_ w); |
3594 | ev_embed_start (EV_A_ w); |
2921 | } |
3595 | } |
2922 | |
3596 | |
… | |
… | |
2933 | { |
3607 | { |
2934 | if (expect_false (ev_is_active (w))) |
3608 | if (expect_false (ev_is_active (w))) |
2935 | return; |
3609 | return; |
2936 | |
3610 | |
2937 | { |
3611 | { |
2938 | struct ev_loop *loop = w->other; |
3612 | EV_P = w->other; |
2939 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3613 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2940 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3614 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2941 | } |
3615 | } |
2942 | |
3616 | |
2943 | EV_FREQUENT_CHECK; |
3617 | EV_FREQUENT_CHECK; |
… | |
… | |
2970 | |
3644 | |
2971 | ev_io_stop (EV_A_ &w->io); |
3645 | ev_io_stop (EV_A_ &w->io); |
2972 | ev_prepare_stop (EV_A_ &w->prepare); |
3646 | ev_prepare_stop (EV_A_ &w->prepare); |
2973 | ev_fork_stop (EV_A_ &w->fork); |
3647 | ev_fork_stop (EV_A_ &w->fork); |
2974 | |
3648 | |
|
|
3649 | ev_stop (EV_A_ (W)w); |
|
|
3650 | |
2975 | EV_FREQUENT_CHECK; |
3651 | EV_FREQUENT_CHECK; |
2976 | } |
3652 | } |
2977 | #endif |
3653 | #endif |
2978 | |
3654 | |
2979 | #if EV_FORK_ENABLE |
3655 | #if EV_FORK_ENABLE |
… | |
… | |
3012 | |
3688 | |
3013 | EV_FREQUENT_CHECK; |
3689 | EV_FREQUENT_CHECK; |
3014 | } |
3690 | } |
3015 | #endif |
3691 | #endif |
3016 | |
3692 | |
3017 | #if EV_ASYNC_ENABLE |
3693 | #if EV_CLEANUP_ENABLE |
3018 | void |
3694 | void |
3019 | ev_async_start (EV_P_ ev_async *w) |
3695 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3020 | { |
3696 | { |
3021 | if (expect_false (ev_is_active (w))) |
3697 | if (expect_false (ev_is_active (w))) |
3022 | return; |
3698 | return; |
|
|
3699 | |
|
|
3700 | EV_FREQUENT_CHECK; |
|
|
3701 | |
|
|
3702 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3703 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3704 | cleanups [cleanupcnt - 1] = w; |
|
|
3705 | |
|
|
3706 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3707 | ev_unref (EV_A); |
|
|
3708 | EV_FREQUENT_CHECK; |
|
|
3709 | } |
|
|
3710 | |
|
|
3711 | void |
|
|
3712 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3713 | { |
|
|
3714 | clear_pending (EV_A_ (W)w); |
|
|
3715 | if (expect_false (!ev_is_active (w))) |
|
|
3716 | return; |
|
|
3717 | |
|
|
3718 | EV_FREQUENT_CHECK; |
|
|
3719 | ev_ref (EV_A); |
|
|
3720 | |
|
|
3721 | { |
|
|
3722 | int active = ev_active (w); |
|
|
3723 | |
|
|
3724 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3725 | ev_active (cleanups [active - 1]) = active; |
|
|
3726 | } |
|
|
3727 | |
|
|
3728 | ev_stop (EV_A_ (W)w); |
|
|
3729 | |
|
|
3730 | EV_FREQUENT_CHECK; |
|
|
3731 | } |
|
|
3732 | #endif |
|
|
3733 | |
|
|
3734 | #if EV_ASYNC_ENABLE |
|
|
3735 | void |
|
|
3736 | ev_async_start (EV_P_ ev_async *w) |
|
|
3737 | { |
|
|
3738 | if (expect_false (ev_is_active (w))) |
|
|
3739 | return; |
|
|
3740 | |
|
|
3741 | w->sent = 0; |
3023 | |
3742 | |
3024 | evpipe_init (EV_A); |
3743 | evpipe_init (EV_A); |
3025 | |
3744 | |
3026 | EV_FREQUENT_CHECK; |
3745 | EV_FREQUENT_CHECK; |
3027 | |
3746 | |
… | |
… | |
3055 | |
3774 | |
3056 | void |
3775 | void |
3057 | ev_async_send (EV_P_ ev_async *w) |
3776 | ev_async_send (EV_P_ ev_async *w) |
3058 | { |
3777 | { |
3059 | w->sent = 1; |
3778 | w->sent = 1; |
3060 | evpipe_write (EV_A_ &gotasync); |
3779 | evpipe_write (EV_A_ &async_pending); |
3061 | } |
3780 | } |
3062 | #endif |
3781 | #endif |
3063 | |
3782 | |
3064 | /*****************************************************************************/ |
3783 | /*****************************************************************************/ |
3065 | |
3784 | |
… | |
… | |
3105 | { |
3824 | { |
3106 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3825 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3107 | |
3826 | |
3108 | if (expect_false (!once)) |
3827 | if (expect_false (!once)) |
3109 | { |
3828 | { |
3110 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3829 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3111 | return; |
3830 | return; |
3112 | } |
3831 | } |
3113 | |
3832 | |
3114 | once->cb = cb; |
3833 | once->cb = cb; |
3115 | once->arg = arg; |
3834 | once->arg = arg; |
… | |
… | |
3127 | ev_timer_set (&once->to, timeout, 0.); |
3846 | ev_timer_set (&once->to, timeout, 0.); |
3128 | ev_timer_start (EV_A_ &once->to); |
3847 | ev_timer_start (EV_A_ &once->to); |
3129 | } |
3848 | } |
3130 | } |
3849 | } |
3131 | |
3850 | |
|
|
3851 | /*****************************************************************************/ |
|
|
3852 | |
|
|
3853 | #if EV_WALK_ENABLE |
|
|
3854 | void |
|
|
3855 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3856 | { |
|
|
3857 | int i, j; |
|
|
3858 | ev_watcher_list *wl, *wn; |
|
|
3859 | |
|
|
3860 | if (types & (EV_IO | EV_EMBED)) |
|
|
3861 | for (i = 0; i < anfdmax; ++i) |
|
|
3862 | for (wl = anfds [i].head; wl; ) |
|
|
3863 | { |
|
|
3864 | wn = wl->next; |
|
|
3865 | |
|
|
3866 | #if EV_EMBED_ENABLE |
|
|
3867 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3868 | { |
|
|
3869 | if (types & EV_EMBED) |
|
|
3870 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3871 | } |
|
|
3872 | else |
|
|
3873 | #endif |
|
|
3874 | #if EV_USE_INOTIFY |
|
|
3875 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3876 | ; |
|
|
3877 | else |
|
|
3878 | #endif |
|
|
3879 | if ((ev_io *)wl != &pipe_w) |
|
|
3880 | if (types & EV_IO) |
|
|
3881 | cb (EV_A_ EV_IO, wl); |
|
|
3882 | |
|
|
3883 | wl = wn; |
|
|
3884 | } |
|
|
3885 | |
|
|
3886 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3887 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3888 | #if EV_STAT_ENABLE |
|
|
3889 | /*TODO: timer is not always active*/ |
|
|
3890 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3891 | { |
|
|
3892 | if (types & EV_STAT) |
|
|
3893 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3894 | } |
|
|
3895 | else |
|
|
3896 | #endif |
|
|
3897 | if (types & EV_TIMER) |
|
|
3898 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3899 | |
|
|
3900 | #if EV_PERIODIC_ENABLE |
|
|
3901 | if (types & EV_PERIODIC) |
|
|
3902 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3903 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3904 | #endif |
|
|
3905 | |
|
|
3906 | #if EV_IDLE_ENABLE |
|
|
3907 | if (types & EV_IDLE) |
|
|
3908 | for (j = NUMPRI; i--; ) |
|
|
3909 | for (i = idlecnt [j]; i--; ) |
|
|
3910 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3911 | #endif |
|
|
3912 | |
|
|
3913 | #if EV_FORK_ENABLE |
|
|
3914 | if (types & EV_FORK) |
|
|
3915 | for (i = forkcnt; i--; ) |
|
|
3916 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3917 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3918 | #endif |
|
|
3919 | |
|
|
3920 | #if EV_ASYNC_ENABLE |
|
|
3921 | if (types & EV_ASYNC) |
|
|
3922 | for (i = asynccnt; i--; ) |
|
|
3923 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3924 | #endif |
|
|
3925 | |
|
|
3926 | #if EV_PREPARE_ENABLE |
|
|
3927 | if (types & EV_PREPARE) |
|
|
3928 | for (i = preparecnt; i--; ) |
|
|
3929 | # if EV_EMBED_ENABLE |
|
|
3930 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3931 | # endif |
|
|
3932 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3933 | #endif |
|
|
3934 | |
|
|
3935 | #if EV_CHECK_ENABLE |
|
|
3936 | if (types & EV_CHECK) |
|
|
3937 | for (i = checkcnt; i--; ) |
|
|
3938 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3939 | #endif |
|
|
3940 | |
|
|
3941 | #if EV_SIGNAL_ENABLE |
|
|
3942 | if (types & EV_SIGNAL) |
|
|
3943 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3944 | for (wl = signals [i].head; wl; ) |
|
|
3945 | { |
|
|
3946 | wn = wl->next; |
|
|
3947 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3948 | wl = wn; |
|
|
3949 | } |
|
|
3950 | #endif |
|
|
3951 | |
|
|
3952 | #if EV_CHILD_ENABLE |
|
|
3953 | if (types & EV_CHILD) |
|
|
3954 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3955 | for (wl = childs [i]; wl; ) |
|
|
3956 | { |
|
|
3957 | wn = wl->next; |
|
|
3958 | cb (EV_A_ EV_CHILD, wl); |
|
|
3959 | wl = wn; |
|
|
3960 | } |
|
|
3961 | #endif |
|
|
3962 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3963 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3964 | } |
|
|
3965 | #endif |
|
|
3966 | |
3132 | #if EV_MULTIPLICITY |
3967 | #if EV_MULTIPLICITY |
3133 | #include "ev_wrap.h" |
3968 | #include "ev_wrap.h" |
3134 | #endif |
3969 | #endif |
3135 | |
3970 | |
3136 | #ifdef __cplusplus |
3971 | EV_CPP(}) |
3137 | } |
|
|
3138 | #endif |
|
|
3139 | |
3972 | |