1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
51 | |
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
|
|
53 | |
|
|
54 | # if HAVE_CLOCK_SYSCALL |
|
|
55 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
56 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
57 | # ifndef EV_USE_REALTIME |
|
|
58 | # define EV_USE_REALTIME 0 |
|
|
59 | # endif |
|
|
60 | # ifndef EV_USE_MONOTONIC |
|
|
61 | # define EV_USE_MONOTONIC 1 |
|
|
62 | # endif |
|
|
63 | # endif |
|
|
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
66 | # endif |
|
|
67 | |
52 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
71 | # endif |
56 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
58 | # endif |
74 | # endif |
59 | # else |
75 | # else |
60 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
78 | # endif |
63 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
65 | # endif |
81 | # endif |
66 | # endif |
82 | # endif |
67 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
71 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
74 | # endif |
100 | # endif |
75 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
105 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
109 | # endif |
91 | |
110 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
95 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
98 | # endif |
118 | # endif |
99 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
100 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
106 | # endif |
127 | # endif |
107 | |
128 | |
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
111 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
114 | # endif |
136 | # endif |
115 | |
137 | |
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
121 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
122 | # endif |
145 | # endif |
123 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
124 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
125 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
|
|
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 |
130 | # endif |
163 | # endif |
131 | |
164 | |
132 | #endif |
165 | #endif |
133 | |
166 | |
134 | #include <math.h> |
|
|
135 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
136 | #include <fcntl.h> |
169 | #include <fcntl.h> |
137 | #include <stddef.h> |
170 | #include <stddef.h> |
138 | |
171 | |
139 | #include <stdio.h> |
172 | #include <stdio.h> |
140 | |
173 | |
141 | #include <assert.h> |
174 | #include <assert.h> |
142 | #include <errno.h> |
175 | #include <errno.h> |
143 | #include <sys/types.h> |
176 | #include <sys/types.h> |
144 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
145 | |
179 | |
146 | #include <signal.h> |
180 | #include <signal.h> |
147 | |
181 | |
148 | #ifdef EV_H |
182 | #ifdef EV_H |
149 | # include EV_H |
183 | # include EV_H |
150 | #else |
184 | #else |
151 | # include "ev.h" |
185 | # include "ev.h" |
152 | #endif |
186 | #endif |
|
|
187 | |
|
|
188 | EV_CPP(extern "C" {) |
153 | |
189 | |
154 | #ifndef _WIN32 |
190 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
191 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
192 | # include <sys/wait.h> |
157 | # include <unistd.h> |
193 | # include <unistd.h> |
… | |
… | |
160 | # define WIN32_LEAN_AND_MEAN |
196 | # define WIN32_LEAN_AND_MEAN |
161 | # include <windows.h> |
197 | # include <windows.h> |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
164 | # endif |
200 | # endif |
|
|
201 | # undef EV_AVOID_STDIO |
165 | #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 |
166 | |
211 | |
167 | /* 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 |
|
|
245 | |
|
|
246 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
247 | # if __linux && __GLIBC__ >= 2 |
|
|
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
249 | # else |
|
|
250 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
251 | # endif |
|
|
252 | #endif |
168 | |
253 | |
169 | #ifndef EV_USE_MONOTONIC |
254 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
172 | # else |
257 | # else |
173 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
259 | # endif |
175 | #endif |
260 | #endif |
176 | |
261 | |
177 | #ifndef EV_USE_REALTIME |
262 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
263 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
264 | #endif |
180 | |
265 | |
181 | #ifndef EV_USE_NANOSLEEP |
266 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
267 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
268 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
184 | # else |
269 | # else |
185 | # define EV_USE_NANOSLEEP 0 |
270 | # define EV_USE_NANOSLEEP 0 |
186 | # endif |
271 | # endif |
187 | #endif |
272 | #endif |
188 | |
273 | |
189 | #ifndef EV_USE_SELECT |
274 | #ifndef EV_USE_SELECT |
190 | # define EV_USE_SELECT 1 |
275 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
191 | #endif |
276 | #endif |
192 | |
277 | |
193 | #ifndef EV_USE_POLL |
278 | #ifndef EV_USE_POLL |
194 | # ifdef _WIN32 |
279 | # ifdef _WIN32 |
195 | # define EV_USE_POLL 0 |
280 | # define EV_USE_POLL 0 |
196 | # else |
281 | # else |
197 | # define EV_USE_POLL 1 |
282 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
198 | # endif |
283 | # endif |
199 | #endif |
284 | #endif |
200 | |
285 | |
201 | #ifndef EV_USE_EPOLL |
286 | #ifndef EV_USE_EPOLL |
202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
287 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
203 | # define EV_USE_EPOLL 1 |
288 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
204 | # else |
289 | # else |
205 | # define EV_USE_EPOLL 0 |
290 | # define EV_USE_EPOLL 0 |
206 | # endif |
291 | # endif |
207 | #endif |
292 | #endif |
208 | |
293 | |
… | |
… | |
214 | # define EV_USE_PORT 0 |
299 | # define EV_USE_PORT 0 |
215 | #endif |
300 | #endif |
216 | |
301 | |
217 | #ifndef EV_USE_INOTIFY |
302 | #ifndef EV_USE_INOTIFY |
218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
219 | # define EV_USE_INOTIFY 1 |
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
220 | # else |
305 | # else |
221 | # define EV_USE_INOTIFY 0 |
306 | # define EV_USE_INOTIFY 0 |
222 | # endif |
307 | # endif |
223 | #endif |
308 | #endif |
224 | |
309 | |
225 | #ifndef EV_PID_HASHSIZE |
310 | #ifndef EV_PID_HASHSIZE |
226 | # if EV_MINIMAL |
311 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
227 | # define EV_PID_HASHSIZE 1 |
|
|
228 | # else |
|
|
229 | # define EV_PID_HASHSIZE 16 |
|
|
230 | # endif |
|
|
231 | #endif |
312 | #endif |
232 | |
313 | |
233 | #ifndef EV_INOTIFY_HASHSIZE |
314 | #ifndef EV_INOTIFY_HASHSIZE |
234 | # if EV_MINIMAL |
315 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
235 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
236 | # else |
|
|
237 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
238 | # endif |
|
|
239 | #endif |
316 | #endif |
240 | |
317 | |
241 | #ifndef EV_USE_EVENTFD |
318 | #ifndef EV_USE_EVENTFD |
242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
243 | # define EV_USE_EVENTFD 1 |
320 | # define EV_USE_EVENTFD EV_FEATURE_OS |
244 | # else |
321 | # else |
245 | # 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 |
246 | # endif |
331 | # endif |
247 | #endif |
332 | #endif |
248 | |
333 | |
249 | #if 0 /* debugging */ |
334 | #if 0 /* debugging */ |
250 | # define EV_VERIFY 3 |
335 | # define EV_VERIFY 3 |
251 | # define EV_USE_4HEAP 1 |
336 | # define EV_USE_4HEAP 1 |
252 | # define EV_HEAP_CACHE_AT 1 |
337 | # define EV_HEAP_CACHE_AT 1 |
253 | #endif |
338 | #endif |
254 | |
339 | |
255 | #ifndef EV_VERIFY |
340 | #ifndef EV_VERIFY |
256 | # define EV_VERIFY !EV_MINIMAL |
341 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
257 | #endif |
342 | #endif |
258 | |
343 | |
259 | #ifndef EV_USE_4HEAP |
344 | #ifndef EV_USE_4HEAP |
260 | # define EV_USE_4HEAP !EV_MINIMAL |
345 | # define EV_USE_4HEAP EV_FEATURE_DATA |
261 | #endif |
346 | #endif |
262 | |
347 | |
263 | #ifndef EV_HEAP_CACHE_AT |
348 | #ifndef EV_HEAP_CACHE_AT |
264 | # 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 |
265 | #endif |
364 | #endif |
266 | |
365 | |
267 | /* 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 |
268 | |
373 | |
269 | #ifndef CLOCK_MONOTONIC |
374 | #ifndef CLOCK_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
271 | # define EV_USE_MONOTONIC 0 |
376 | # define EV_USE_MONOTONIC 0 |
272 | #endif |
377 | #endif |
… | |
… | |
280 | # undef EV_USE_INOTIFY |
385 | # undef EV_USE_INOTIFY |
281 | # define EV_USE_INOTIFY 0 |
386 | # define EV_USE_INOTIFY 0 |
282 | #endif |
387 | #endif |
283 | |
388 | |
284 | #if !EV_USE_NANOSLEEP |
389 | #if !EV_USE_NANOSLEEP |
285 | # ifndef _WIN32 |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
391 | # if !defined(_WIN32) && !defined(__hpux) |
286 | # include <sys/select.h> |
392 | # include <sys/select.h> |
287 | # endif |
393 | # endif |
288 | #endif |
394 | #endif |
289 | |
395 | |
290 | #if EV_USE_INOTIFY |
396 | #if EV_USE_INOTIFY |
291 | # include <sys/utsname.h> |
|
|
292 | # include <sys/statfs.h> |
397 | # include <sys/statfs.h> |
293 | # include <sys/inotify.h> |
398 | # include <sys/inotify.h> |
294 | /* 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 */ |
295 | # ifndef IN_DONT_FOLLOW |
400 | # ifndef IN_DONT_FOLLOW |
296 | # undef EV_USE_INOTIFY |
401 | # undef EV_USE_INOTIFY |
… | |
… | |
303 | #endif |
408 | #endif |
304 | |
409 | |
305 | #if EV_USE_EVENTFD |
410 | #if EV_USE_EVENTFD |
306 | /* 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 */ |
307 | # include <stdint.h> |
412 | # include <stdint.h> |
308 | # ifdef __cplusplus |
413 | # ifndef EFD_NONBLOCK |
309 | extern "C" { |
414 | # define EFD_NONBLOCK O_NONBLOCK |
310 | # endif |
415 | # endif |
311 | int eventfd (unsigned int initval, int flags); |
416 | # ifndef EFD_CLOEXEC |
312 | # ifdef __cplusplus |
417 | # ifdef O_CLOEXEC |
313 | } |
418 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
419 | # else |
|
|
420 | # define EFD_CLOEXEC 02000000 |
|
|
421 | # endif |
314 | # 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 | }; |
315 | #endif |
446 | #endif |
316 | |
447 | |
317 | /**/ |
448 | /**/ |
318 | |
449 | |
319 | #if EV_VERIFY >= 3 |
450 | #if EV_VERIFY >= 3 |
320 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
321 | #else |
452 | #else |
322 | # define EV_FREQUENT_CHECK do { } while (0) |
453 | # define EV_FREQUENT_CHECK do { } while (0) |
323 | #endif |
454 | #endif |
324 | |
455 | |
325 | /* |
456 | /* |
326 | * This is used to avoid floating point rounding problems. |
457 | * This is used to work around floating point rounding problems. |
327 | * It is added to ev_rt_now when scheduling periodics |
|
|
328 | * to ensure progress, time-wise, even when rounding |
|
|
329 | * errors are against us. |
|
|
330 | * This value is good at least till the year 4000. |
458 | * This value is good at least till the year 4000. |
331 | * Better solutions welcome. |
|
|
332 | */ |
459 | */ |
333 | #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 */ |
334 | |
462 | |
335 | #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) */ |
336 | #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) */ |
337 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
338 | |
465 | |
339 | #if __GNUC__ >= 4 |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
340 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
341 | # define noinline __attribute__ ((noinline)) |
468 | |
|
|
469 | /* the following are taken from libecb */ |
|
|
470 | /* ecb.h start */ |
|
|
471 | |
|
|
472 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
473 | * what their idiot authors think are the "more important" extensions, |
|
|
474 | * causing enourmous grief in return for some better fake benchmark numbers. |
|
|
475 | * or so. |
|
|
476 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
477 | * an issue with that they should have done it right in the first place. |
|
|
478 | */ |
|
|
479 | #ifndef ECB_GCC_VERSION |
|
|
480 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
|
481 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
482 | #else |
|
|
483 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
484 | #endif |
|
|
485 | #endif |
|
|
486 | |
|
|
487 | #if __cplusplus |
|
|
488 | #define ecb_inline static inline |
|
|
489 | #elif ECB_GCC_VERSION(2,5) |
|
|
490 | #define ecb_inline static __inline__ |
|
|
491 | #elif ECB_C99 |
|
|
492 | #define ecb_inline static inline |
342 | #else |
493 | #else |
343 | # define expect(expr,value) (expr) |
494 | #define ecb_inline static |
344 | # define noinline |
|
|
345 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
346 | # define inline |
|
|
347 | # endif |
495 | #endif |
|
|
496 | |
|
|
497 | #ifndef ECB_MEMORY_FENCE |
|
|
498 | #if ECB_GCC_VERSION(2,5) |
|
|
499 | #if __x86 |
|
|
500 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
501 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
502 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ |
|
|
503 | #elif __amd64 |
|
|
504 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
505 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
506 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
|
|
507 | #endif |
348 | #endif |
508 | #endif |
|
|
509 | #endif |
349 | |
510 | |
|
|
511 | #ifndef ECB_MEMORY_FENCE |
|
|
512 | #if ECB_GCC_VERSION(4,4) |
|
|
513 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
514 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
|
|
515 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
|
|
516 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
517 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
518 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
519 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
520 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
521 | #elif defined(_WIN32) |
|
|
522 | #include <WinNT.h> |
|
|
523 | #define ECB_MEMORY_FENCE MemoryBarrier () |
|
|
524 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
525 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
526 | #endif |
|
|
527 | #endif |
|
|
528 | |
|
|
529 | #ifndef ECB_MEMORY_FENCE |
|
|
530 | #include <pthread.h> |
|
|
531 | |
|
|
532 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
533 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
534 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
535 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
536 | #endif |
|
|
537 | |
|
|
538 | #if ECB_GCC_VERSION(3,1) |
|
|
539 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
540 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
541 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
542 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
543 | #else |
|
|
544 | #define ecb_attribute(attrlist) |
|
|
545 | #define ecb_is_constant(expr) 0 |
|
|
546 | #define ecb_expect(expr,value) (expr) |
|
|
547 | #define ecb_prefetch(addr,rw,locality) |
|
|
548 | #endif |
|
|
549 | |
|
|
550 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
551 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
552 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
553 | #define ecb_const ecb_attribute ((__const__)) |
|
|
554 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
555 | |
|
|
556 | #if ECB_GCC_VERSION(4,3) |
|
|
557 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
558 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
559 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
560 | #else |
|
|
561 | #define ecb_artificial |
|
|
562 | #define ecb_hot |
|
|
563 | #define ecb_cold |
|
|
564 | #endif |
|
|
565 | |
|
|
566 | /* put around conditional expressions if you are very sure that the */ |
|
|
567 | /* expression is mostly true or mostly false. note that these return */ |
|
|
568 | /* booleans, not the expression. */ |
350 | #define expect_false(expr) expect ((expr) != 0, 0) |
569 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
351 | #define expect_true(expr) expect ((expr) != 0, 1) |
570 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
571 | /* ecb.h end */ |
|
|
572 | |
|
|
573 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
574 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
575 | #define noinline ecb_noinline |
|
|
576 | |
352 | #define inline_size static inline |
577 | #define inline_size ecb_inline |
353 | |
578 | |
354 | #if EV_MINIMAL |
579 | #if EV_FEATURE_CODE |
|
|
580 | # define inline_speed ecb_inline |
|
|
581 | #else |
355 | # define inline_speed static noinline |
582 | # define inline_speed static noinline |
|
|
583 | #endif |
|
|
584 | |
|
|
585 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
586 | |
|
|
587 | #if EV_MINPRI == EV_MAXPRI |
|
|
588 | # define ABSPRI(w) (((W)w), 0) |
356 | #else |
589 | #else |
357 | # define inline_speed static inline |
|
|
358 | #endif |
|
|
359 | |
|
|
360 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
361 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
590 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
591 | #endif |
362 | |
592 | |
363 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
593 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
364 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
594 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
365 | |
595 | |
366 | typedef ev_watcher *W; |
596 | typedef ev_watcher *W; |
… | |
… | |
368 | typedef ev_watcher_time *WT; |
598 | typedef ev_watcher_time *WT; |
369 | |
599 | |
370 | #define ev_active(w) ((W)(w))->active |
600 | #define ev_active(w) ((W)(w))->active |
371 | #define ev_at(w) ((WT)(w))->at |
601 | #define ev_at(w) ((WT)(w))->at |
372 | |
602 | |
|
|
603 | #if EV_USE_REALTIME |
|
|
604 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
605 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
606 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
607 | #endif |
|
|
608 | |
373 | #if EV_USE_MONOTONIC |
609 | #if EV_USE_MONOTONIC |
374 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
375 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
376 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
610 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
611 | #endif |
|
|
612 | |
|
|
613 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
614 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
615 | #endif |
|
|
616 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
617 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
618 | #endif |
|
|
619 | #ifndef EV_WIN32_CLOSE_FD |
|
|
620 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
377 | #endif |
621 | #endif |
378 | |
622 | |
379 | #ifdef _WIN32 |
623 | #ifdef _WIN32 |
380 | # include "ev_win32.c" |
624 | # include "ev_win32.c" |
381 | #endif |
625 | #endif |
382 | |
626 | |
383 | /*****************************************************************************/ |
627 | /*****************************************************************************/ |
384 | |
628 | |
|
|
629 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
630 | |
|
|
631 | #if EV_USE_FLOOR |
|
|
632 | # include <math.h> |
|
|
633 | # define ev_floor(v) floor (v) |
|
|
634 | #else |
|
|
635 | |
|
|
636 | #include <float.h> |
|
|
637 | |
|
|
638 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
639 | static ev_tstamp noinline |
|
|
640 | ev_floor (ev_tstamp v) |
|
|
641 | { |
|
|
642 | /* the choice of shift factor is not terribly important */ |
|
|
643 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
644 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
645 | #else |
|
|
646 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
647 | #endif |
|
|
648 | |
|
|
649 | /* argument too large for an unsigned long? */ |
|
|
650 | if (expect_false (v >= shift)) |
|
|
651 | { |
|
|
652 | ev_tstamp f; |
|
|
653 | |
|
|
654 | if (v == v - 1.) |
|
|
655 | return v; /* very large number */ |
|
|
656 | |
|
|
657 | f = shift * ev_floor (v * (1. / shift)); |
|
|
658 | return f + ev_floor (v - f); |
|
|
659 | } |
|
|
660 | |
|
|
661 | /* special treatment for negative args? */ |
|
|
662 | if (expect_false (v < 0.)) |
|
|
663 | { |
|
|
664 | ev_tstamp f = -ev_floor (-v); |
|
|
665 | |
|
|
666 | return f - (f == v ? 0 : 1); |
|
|
667 | } |
|
|
668 | |
|
|
669 | /* fits into an unsigned long */ |
|
|
670 | return (unsigned long)v; |
|
|
671 | } |
|
|
672 | |
|
|
673 | #endif |
|
|
674 | |
|
|
675 | /*****************************************************************************/ |
|
|
676 | |
|
|
677 | #ifdef __linux |
|
|
678 | # include <sys/utsname.h> |
|
|
679 | #endif |
|
|
680 | |
|
|
681 | static unsigned int noinline ecb_cold |
|
|
682 | ev_linux_version (void) |
|
|
683 | { |
|
|
684 | #ifdef __linux |
|
|
685 | unsigned int v = 0; |
|
|
686 | struct utsname buf; |
|
|
687 | int i; |
|
|
688 | char *p = buf.release; |
|
|
689 | |
|
|
690 | if (uname (&buf)) |
|
|
691 | return 0; |
|
|
692 | |
|
|
693 | for (i = 3+1; --i; ) |
|
|
694 | { |
|
|
695 | unsigned int c = 0; |
|
|
696 | |
|
|
697 | for (;;) |
|
|
698 | { |
|
|
699 | if (*p >= '0' && *p <= '9') |
|
|
700 | c = c * 10 + *p++ - '0'; |
|
|
701 | else |
|
|
702 | { |
|
|
703 | p += *p == '.'; |
|
|
704 | break; |
|
|
705 | } |
|
|
706 | } |
|
|
707 | |
|
|
708 | v = (v << 8) | c; |
|
|
709 | } |
|
|
710 | |
|
|
711 | return v; |
|
|
712 | #else |
|
|
713 | return 0; |
|
|
714 | #endif |
|
|
715 | } |
|
|
716 | |
|
|
717 | /*****************************************************************************/ |
|
|
718 | |
|
|
719 | #if EV_AVOID_STDIO |
|
|
720 | static void noinline ecb_cold |
|
|
721 | ev_printerr (const char *msg) |
|
|
722 | { |
|
|
723 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
724 | } |
|
|
725 | #endif |
|
|
726 | |
385 | static void (*syserr_cb)(const char *msg); |
727 | static void (*syserr_cb)(const char *msg); |
386 | |
728 | |
387 | void |
729 | void ecb_cold |
388 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
730 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
389 | { |
731 | { |
390 | syserr_cb = cb; |
732 | syserr_cb = cb; |
391 | } |
733 | } |
392 | |
734 | |
393 | static void noinline |
735 | static void noinline ecb_cold |
394 | ev_syserr (const char *msg) |
736 | ev_syserr (const char *msg) |
395 | { |
737 | { |
396 | if (!msg) |
738 | if (!msg) |
397 | msg = "(libev) system error"; |
739 | msg = "(libev) system error"; |
398 | |
740 | |
399 | if (syserr_cb) |
741 | if (syserr_cb) |
400 | syserr_cb (msg); |
742 | syserr_cb (msg); |
401 | else |
743 | else |
402 | { |
744 | { |
|
|
745 | #if EV_AVOID_STDIO |
|
|
746 | ev_printerr (msg); |
|
|
747 | ev_printerr (": "); |
|
|
748 | ev_printerr (strerror (errno)); |
|
|
749 | ev_printerr ("\n"); |
|
|
750 | #else |
403 | perror (msg); |
751 | perror (msg); |
|
|
752 | #endif |
404 | abort (); |
753 | abort (); |
405 | } |
754 | } |
406 | } |
755 | } |
407 | |
756 | |
408 | static void * |
757 | static void * |
409 | ev_realloc_emul (void *ptr, long size) |
758 | ev_realloc_emul (void *ptr, long size) |
410 | { |
759 | { |
|
|
760 | #if __GLIBC__ |
|
|
761 | return realloc (ptr, size); |
|
|
762 | #else |
411 | /* some systems, notably openbsd and darwin, fail to properly |
763 | /* some systems, notably openbsd and darwin, fail to properly |
412 | * implement realloc (x, 0) (as required by both ansi c-98 and |
764 | * implement realloc (x, 0) (as required by both ansi c-89 and |
413 | * the single unix specification, so work around them here. |
765 | * the single unix specification, so work around them here. |
414 | */ |
766 | */ |
415 | |
767 | |
416 | if (size) |
768 | if (size) |
417 | return realloc (ptr, size); |
769 | return realloc (ptr, size); |
418 | |
770 | |
419 | free (ptr); |
771 | free (ptr); |
420 | return 0; |
772 | return 0; |
|
|
773 | #endif |
421 | } |
774 | } |
422 | |
775 | |
423 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
776 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
424 | |
777 | |
425 | void |
778 | void ecb_cold |
426 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
779 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
427 | { |
780 | { |
428 | alloc = cb; |
781 | alloc = cb; |
429 | } |
782 | } |
430 | |
783 | |
… | |
… | |
433 | { |
786 | { |
434 | ptr = alloc (ptr, size); |
787 | ptr = alloc (ptr, size); |
435 | |
788 | |
436 | if (!ptr && size) |
789 | if (!ptr && size) |
437 | { |
790 | { |
|
|
791 | #if EV_AVOID_STDIO |
|
|
792 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
793 | #else |
438 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
794 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
795 | #endif |
439 | abort (); |
796 | abort (); |
440 | } |
797 | } |
441 | |
798 | |
442 | return ptr; |
799 | return ptr; |
443 | } |
800 | } |
… | |
… | |
445 | #define ev_malloc(size) ev_realloc (0, (size)) |
802 | #define ev_malloc(size) ev_realloc (0, (size)) |
446 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
803 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
447 | |
804 | |
448 | /*****************************************************************************/ |
805 | /*****************************************************************************/ |
449 | |
806 | |
|
|
807 | /* set in reify when reification needed */ |
|
|
808 | #define EV_ANFD_REIFY 1 |
|
|
809 | |
|
|
810 | /* file descriptor info structure */ |
450 | typedef struct |
811 | typedef struct |
451 | { |
812 | { |
452 | WL head; |
813 | WL head; |
453 | unsigned char events; |
814 | unsigned char events; /* the events watched for */ |
454 | unsigned char reify; |
815 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
455 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
816 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
456 | unsigned char unused; |
817 | unsigned char unused; |
457 | #if EV_USE_EPOLL |
818 | #if EV_USE_EPOLL |
458 | unsigned int egen; /* generation counter to counter epoll bugs */ |
819 | unsigned int egen; /* generation counter to counter epoll bugs */ |
459 | #endif |
820 | #endif |
460 | #if EV_SELECT_IS_WINSOCKET |
821 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
461 | SOCKET handle; |
822 | SOCKET handle; |
462 | #endif |
823 | #endif |
|
|
824 | #if EV_USE_IOCP |
|
|
825 | OVERLAPPED or, ow; |
|
|
826 | #endif |
463 | } ANFD; |
827 | } ANFD; |
464 | |
828 | |
|
|
829 | /* stores the pending event set for a given watcher */ |
465 | typedef struct |
830 | typedef struct |
466 | { |
831 | { |
467 | W w; |
832 | W w; |
468 | int events; |
833 | int events; /* the pending event set for the given watcher */ |
469 | } ANPENDING; |
834 | } ANPENDING; |
470 | |
835 | |
471 | #if EV_USE_INOTIFY |
836 | #if EV_USE_INOTIFY |
472 | /* hash table entry per inotify-id */ |
837 | /* hash table entry per inotify-id */ |
473 | typedef struct |
838 | typedef struct |
… | |
… | |
476 | } ANFS; |
841 | } ANFS; |
477 | #endif |
842 | #endif |
478 | |
843 | |
479 | /* Heap Entry */ |
844 | /* Heap Entry */ |
480 | #if EV_HEAP_CACHE_AT |
845 | #if EV_HEAP_CACHE_AT |
|
|
846 | /* a heap element */ |
481 | typedef struct { |
847 | typedef struct { |
482 | ev_tstamp at; |
848 | ev_tstamp at; |
483 | WT w; |
849 | WT w; |
484 | } ANHE; |
850 | } ANHE; |
485 | |
851 | |
486 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
852 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
487 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
853 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
488 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
854 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
489 | #else |
855 | #else |
|
|
856 | /* a heap element */ |
490 | typedef WT ANHE; |
857 | typedef WT ANHE; |
491 | |
858 | |
492 | #define ANHE_w(he) (he) |
859 | #define ANHE_w(he) (he) |
493 | #define ANHE_at(he) (he)->at |
860 | #define ANHE_at(he) (he)->at |
494 | #define ANHE_at_cache(he) |
861 | #define ANHE_at_cache(he) |
… | |
… | |
518 | |
885 | |
519 | static int ev_default_loop_ptr; |
886 | static int ev_default_loop_ptr; |
520 | |
887 | |
521 | #endif |
888 | #endif |
522 | |
889 | |
|
|
890 | #if EV_FEATURE_API |
|
|
891 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
892 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
893 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
894 | #else |
|
|
895 | # define EV_RELEASE_CB (void)0 |
|
|
896 | # define EV_ACQUIRE_CB (void)0 |
|
|
897 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
898 | #endif |
|
|
899 | |
|
|
900 | #define EVBREAK_RECURSE 0x80 |
|
|
901 | |
523 | /*****************************************************************************/ |
902 | /*****************************************************************************/ |
524 | |
903 | |
|
|
904 | #ifndef EV_HAVE_EV_TIME |
525 | ev_tstamp |
905 | ev_tstamp |
526 | ev_time (void) |
906 | ev_time (void) |
527 | { |
907 | { |
528 | #if EV_USE_REALTIME |
908 | #if EV_USE_REALTIME |
|
|
909 | if (expect_true (have_realtime)) |
|
|
910 | { |
529 | struct timespec ts; |
911 | struct timespec ts; |
530 | clock_gettime (CLOCK_REALTIME, &ts); |
912 | clock_gettime (CLOCK_REALTIME, &ts); |
531 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
913 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
532 | #else |
914 | } |
|
|
915 | #endif |
|
|
916 | |
533 | struct timeval tv; |
917 | struct timeval tv; |
534 | gettimeofday (&tv, 0); |
918 | gettimeofday (&tv, 0); |
535 | return tv.tv_sec + tv.tv_usec * 1e-6; |
919 | return tv.tv_sec + tv.tv_usec * 1e-6; |
536 | #endif |
|
|
537 | } |
920 | } |
|
|
921 | #endif |
538 | |
922 | |
539 | ev_tstamp inline_size |
923 | inline_size ev_tstamp |
540 | get_clock (void) |
924 | get_clock (void) |
541 | { |
925 | { |
542 | #if EV_USE_MONOTONIC |
926 | #if EV_USE_MONOTONIC |
543 | if (expect_true (have_monotonic)) |
927 | if (expect_true (have_monotonic)) |
544 | { |
928 | { |
… | |
… | |
565 | if (delay > 0.) |
949 | if (delay > 0.) |
566 | { |
950 | { |
567 | #if EV_USE_NANOSLEEP |
951 | #if EV_USE_NANOSLEEP |
568 | struct timespec ts; |
952 | struct timespec ts; |
569 | |
953 | |
570 | ts.tv_sec = (time_t)delay; |
954 | EV_TS_SET (ts, delay); |
571 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
572 | |
|
|
573 | nanosleep (&ts, 0); |
955 | nanosleep (&ts, 0); |
574 | #elif defined(_WIN32) |
956 | #elif defined(_WIN32) |
575 | Sleep ((unsigned long)(delay * 1e3)); |
957 | Sleep ((unsigned long)(delay * 1e3)); |
576 | #else |
958 | #else |
577 | struct timeval tv; |
959 | struct timeval tv; |
578 | |
960 | |
579 | tv.tv_sec = (time_t)delay; |
|
|
580 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
581 | |
|
|
582 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
961 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
583 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
962 | /* something not guaranteed by newer posix versions, but guaranteed */ |
584 | /* by older ones */ |
963 | /* by older ones */ |
|
|
964 | EV_TV_SET (tv, delay); |
585 | select (0, 0, 0, 0, &tv); |
965 | select (0, 0, 0, 0, &tv); |
586 | #endif |
966 | #endif |
587 | } |
967 | } |
588 | } |
968 | } |
589 | |
969 | |
590 | /*****************************************************************************/ |
970 | /*****************************************************************************/ |
591 | |
971 | |
592 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
972 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
593 | |
973 | |
594 | int inline_size |
974 | /* find a suitable new size for the given array, */ |
|
|
975 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
976 | inline_size int |
595 | array_nextsize (int elem, int cur, int cnt) |
977 | array_nextsize (int elem, int cur, int cnt) |
596 | { |
978 | { |
597 | int ncur = cur + 1; |
979 | int ncur = cur + 1; |
598 | |
980 | |
599 | do |
981 | do |
… | |
… | |
610 | } |
992 | } |
611 | |
993 | |
612 | return ncur; |
994 | return ncur; |
613 | } |
995 | } |
614 | |
996 | |
615 | static noinline void * |
997 | static void * noinline ecb_cold |
616 | array_realloc (int elem, void *base, int *cur, int cnt) |
998 | array_realloc (int elem, void *base, int *cur, int cnt) |
617 | { |
999 | { |
618 | *cur = array_nextsize (elem, *cur, cnt); |
1000 | *cur = array_nextsize (elem, *cur, cnt); |
619 | return ev_realloc (base, elem * *cur); |
1001 | return ev_realloc (base, elem * *cur); |
620 | } |
1002 | } |
… | |
… | |
623 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1005 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
624 | |
1006 | |
625 | #define array_needsize(type,base,cur,cnt,init) \ |
1007 | #define array_needsize(type,base,cur,cnt,init) \ |
626 | if (expect_false ((cnt) > (cur))) \ |
1008 | if (expect_false ((cnt) > (cur))) \ |
627 | { \ |
1009 | { \ |
628 | int ocur_ = (cur); \ |
1010 | int ecb_unused ocur_ = (cur); \ |
629 | (base) = (type *)array_realloc \ |
1011 | (base) = (type *)array_realloc \ |
630 | (sizeof (type), (base), &(cur), (cnt)); \ |
1012 | (sizeof (type), (base), &(cur), (cnt)); \ |
631 | init ((base) + (ocur_), (cur) - ocur_); \ |
1013 | init ((base) + (ocur_), (cur) - ocur_); \ |
632 | } |
1014 | } |
633 | |
1015 | |
… | |
… | |
640 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1022 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
641 | } |
1023 | } |
642 | #endif |
1024 | #endif |
643 | |
1025 | |
644 | #define array_free(stem, idx) \ |
1026 | #define array_free(stem, idx) \ |
645 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1027 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
646 | |
1028 | |
647 | /*****************************************************************************/ |
1029 | /*****************************************************************************/ |
|
|
1030 | |
|
|
1031 | /* dummy callback for pending events */ |
|
|
1032 | static void noinline |
|
|
1033 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1034 | { |
|
|
1035 | } |
648 | |
1036 | |
649 | void noinline |
1037 | void noinline |
650 | ev_feed_event (EV_P_ void *w, int revents) |
1038 | ev_feed_event (EV_P_ void *w, int revents) |
651 | { |
1039 | { |
652 | W w_ = (W)w; |
1040 | W w_ = (W)w; |
… | |
… | |
661 | pendings [pri][w_->pending - 1].w = w_; |
1049 | pendings [pri][w_->pending - 1].w = w_; |
662 | pendings [pri][w_->pending - 1].events = revents; |
1050 | pendings [pri][w_->pending - 1].events = revents; |
663 | } |
1051 | } |
664 | } |
1052 | } |
665 | |
1053 | |
666 | void inline_speed |
1054 | inline_speed void |
|
|
1055 | feed_reverse (EV_P_ W w) |
|
|
1056 | { |
|
|
1057 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1058 | rfeeds [rfeedcnt++] = w; |
|
|
1059 | } |
|
|
1060 | |
|
|
1061 | inline_size void |
|
|
1062 | feed_reverse_done (EV_P_ int revents) |
|
|
1063 | { |
|
|
1064 | do |
|
|
1065 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1066 | while (rfeedcnt); |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | inline_speed void |
667 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1070 | queue_events (EV_P_ W *events, int eventcnt, int type) |
668 | { |
1071 | { |
669 | int i; |
1072 | int i; |
670 | |
1073 | |
671 | for (i = 0; i < eventcnt; ++i) |
1074 | for (i = 0; i < eventcnt; ++i) |
672 | ev_feed_event (EV_A_ events [i], type); |
1075 | ev_feed_event (EV_A_ events [i], type); |
673 | } |
1076 | } |
674 | |
1077 | |
675 | /*****************************************************************************/ |
1078 | /*****************************************************************************/ |
676 | |
1079 | |
677 | void inline_speed |
1080 | inline_speed void |
678 | fd_event (EV_P_ int fd, int revents) |
1081 | fd_event_nocheck (EV_P_ int fd, int revents) |
679 | { |
1082 | { |
680 | ANFD *anfd = anfds + fd; |
1083 | ANFD *anfd = anfds + fd; |
681 | ev_io *w; |
1084 | ev_io *w; |
682 | |
1085 | |
683 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1086 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
687 | if (ev) |
1090 | if (ev) |
688 | ev_feed_event (EV_A_ (W)w, ev); |
1091 | ev_feed_event (EV_A_ (W)w, ev); |
689 | } |
1092 | } |
690 | } |
1093 | } |
691 | |
1094 | |
|
|
1095 | /* do not submit kernel events for fds that have reify set */ |
|
|
1096 | /* because that means they changed while we were polling for new events */ |
|
|
1097 | inline_speed void |
|
|
1098 | fd_event (EV_P_ int fd, int revents) |
|
|
1099 | { |
|
|
1100 | ANFD *anfd = anfds + fd; |
|
|
1101 | |
|
|
1102 | if (expect_true (!anfd->reify)) |
|
|
1103 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1104 | } |
|
|
1105 | |
692 | void |
1106 | void |
693 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1107 | ev_feed_fd_event (EV_P_ int fd, int revents) |
694 | { |
1108 | { |
695 | if (fd >= 0 && fd < anfdmax) |
1109 | if (fd >= 0 && fd < anfdmax) |
696 | fd_event (EV_A_ fd, revents); |
1110 | fd_event_nocheck (EV_A_ fd, revents); |
697 | } |
1111 | } |
698 | |
1112 | |
699 | void inline_size |
1113 | /* make sure the external fd watch events are in-sync */ |
|
|
1114 | /* with the kernel/libev internal state */ |
|
|
1115 | inline_size void |
700 | fd_reify (EV_P) |
1116 | fd_reify (EV_P) |
701 | { |
1117 | { |
702 | int i; |
1118 | int i; |
|
|
1119 | |
|
|
1120 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1121 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1122 | { |
|
|
1123 | int fd = fdchanges [i]; |
|
|
1124 | ANFD *anfd = anfds + fd; |
|
|
1125 | |
|
|
1126 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1127 | { |
|
|
1128 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1129 | |
|
|
1130 | if (handle != anfd->handle) |
|
|
1131 | { |
|
|
1132 | unsigned long arg; |
|
|
1133 | |
|
|
1134 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1135 | |
|
|
1136 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1137 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1138 | anfd->events = 0; |
|
|
1139 | anfd->handle = handle; |
|
|
1140 | } |
|
|
1141 | } |
|
|
1142 | } |
|
|
1143 | #endif |
703 | |
1144 | |
704 | for (i = 0; i < fdchangecnt; ++i) |
1145 | for (i = 0; i < fdchangecnt; ++i) |
705 | { |
1146 | { |
706 | int fd = fdchanges [i]; |
1147 | int fd = fdchanges [i]; |
707 | ANFD *anfd = anfds + fd; |
1148 | ANFD *anfd = anfds + fd; |
708 | ev_io *w; |
1149 | ev_io *w; |
709 | |
1150 | |
710 | unsigned char events = 0; |
1151 | unsigned char o_events = anfd->events; |
|
|
1152 | unsigned char o_reify = anfd->reify; |
711 | |
1153 | |
712 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1154 | anfd->reify = 0; |
713 | events |= (unsigned char)w->events; |
|
|
714 | |
1155 | |
715 | #if EV_SELECT_IS_WINSOCKET |
1156 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
716 | if (events) |
|
|
717 | { |
1157 | { |
718 | unsigned long arg; |
1158 | anfd->events = 0; |
719 | #ifdef EV_FD_TO_WIN32_HANDLE |
1159 | |
720 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1160 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
721 | #else |
1161 | anfd->events |= (unsigned char)w->events; |
722 | anfd->handle = _get_osfhandle (fd); |
1162 | |
723 | #endif |
1163 | if (o_events != anfd->events) |
724 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1164 | o_reify = EV__IOFDSET; /* actually |= */ |
725 | } |
1165 | } |
726 | #endif |
|
|
727 | |
1166 | |
728 | { |
1167 | if (o_reify & EV__IOFDSET) |
729 | unsigned char o_events = anfd->events; |
|
|
730 | unsigned char o_reify = anfd->reify; |
|
|
731 | |
|
|
732 | anfd->reify = 0; |
|
|
733 | anfd->events = events; |
|
|
734 | |
|
|
735 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
736 | backend_modify (EV_A_ fd, o_events, events); |
1168 | backend_modify (EV_A_ fd, o_events, anfd->events); |
737 | } |
|
|
738 | } |
1169 | } |
739 | |
1170 | |
740 | fdchangecnt = 0; |
1171 | fdchangecnt = 0; |
741 | } |
1172 | } |
742 | |
1173 | |
743 | void inline_size |
1174 | /* something about the given fd changed */ |
|
|
1175 | inline_size void |
744 | fd_change (EV_P_ int fd, int flags) |
1176 | fd_change (EV_P_ int fd, int flags) |
745 | { |
1177 | { |
746 | unsigned char reify = anfds [fd].reify; |
1178 | unsigned char reify = anfds [fd].reify; |
747 | anfds [fd].reify |= flags; |
1179 | anfds [fd].reify |= flags; |
748 | |
1180 | |
… | |
… | |
752 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1184 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
753 | fdchanges [fdchangecnt - 1] = fd; |
1185 | fdchanges [fdchangecnt - 1] = fd; |
754 | } |
1186 | } |
755 | } |
1187 | } |
756 | |
1188 | |
757 | void inline_speed |
1189 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1190 | inline_speed void ecb_cold |
758 | fd_kill (EV_P_ int fd) |
1191 | fd_kill (EV_P_ int fd) |
759 | { |
1192 | { |
760 | ev_io *w; |
1193 | ev_io *w; |
761 | |
1194 | |
762 | while ((w = (ev_io *)anfds [fd].head)) |
1195 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
764 | ev_io_stop (EV_A_ w); |
1197 | ev_io_stop (EV_A_ w); |
765 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1198 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
766 | } |
1199 | } |
767 | } |
1200 | } |
768 | |
1201 | |
769 | int inline_size |
1202 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1203 | inline_size int ecb_cold |
770 | fd_valid (int fd) |
1204 | fd_valid (int fd) |
771 | { |
1205 | { |
772 | #ifdef _WIN32 |
1206 | #ifdef _WIN32 |
773 | return _get_osfhandle (fd) != -1; |
1207 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
774 | #else |
1208 | #else |
775 | return fcntl (fd, F_GETFD) != -1; |
1209 | return fcntl (fd, F_GETFD) != -1; |
776 | #endif |
1210 | #endif |
777 | } |
1211 | } |
778 | |
1212 | |
779 | /* called on EBADF to verify fds */ |
1213 | /* called on EBADF to verify fds */ |
780 | static void noinline |
1214 | static void noinline ecb_cold |
781 | fd_ebadf (EV_P) |
1215 | fd_ebadf (EV_P) |
782 | { |
1216 | { |
783 | int fd; |
1217 | int fd; |
784 | |
1218 | |
785 | for (fd = 0; fd < anfdmax; ++fd) |
1219 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
787 | if (!fd_valid (fd) && errno == EBADF) |
1221 | if (!fd_valid (fd) && errno == EBADF) |
788 | fd_kill (EV_A_ fd); |
1222 | fd_kill (EV_A_ fd); |
789 | } |
1223 | } |
790 | |
1224 | |
791 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1225 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
792 | static void noinline |
1226 | static void noinline ecb_cold |
793 | fd_enomem (EV_P) |
1227 | fd_enomem (EV_P) |
794 | { |
1228 | { |
795 | int fd; |
1229 | int fd; |
796 | |
1230 | |
797 | for (fd = anfdmax; fd--; ) |
1231 | for (fd = anfdmax; fd--; ) |
798 | if (anfds [fd].events) |
1232 | if (anfds [fd].events) |
799 | { |
1233 | { |
800 | fd_kill (EV_A_ fd); |
1234 | fd_kill (EV_A_ fd); |
801 | return; |
1235 | break; |
802 | } |
1236 | } |
803 | } |
1237 | } |
804 | |
1238 | |
805 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1239 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
806 | static void noinline |
1240 | static void noinline |
… | |
… | |
811 | for (fd = 0; fd < anfdmax; ++fd) |
1245 | for (fd = 0; fd < anfdmax; ++fd) |
812 | if (anfds [fd].events) |
1246 | if (anfds [fd].events) |
813 | { |
1247 | { |
814 | anfds [fd].events = 0; |
1248 | anfds [fd].events = 0; |
815 | anfds [fd].emask = 0; |
1249 | anfds [fd].emask = 0; |
816 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1250 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
817 | } |
1251 | } |
818 | } |
1252 | } |
819 | |
1253 | |
|
|
1254 | /* used to prepare libev internal fd's */ |
|
|
1255 | /* this is not fork-safe */ |
|
|
1256 | inline_speed void |
|
|
1257 | fd_intern (int fd) |
|
|
1258 | { |
|
|
1259 | #ifdef _WIN32 |
|
|
1260 | unsigned long arg = 1; |
|
|
1261 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1262 | #else |
|
|
1263 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1264 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1265 | #endif |
|
|
1266 | } |
|
|
1267 | |
820 | /*****************************************************************************/ |
1268 | /*****************************************************************************/ |
821 | |
1269 | |
822 | /* |
1270 | /* |
823 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1271 | * the heap functions want a real array index. array index 0 is guaranteed to not |
824 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1272 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
825 | * the branching factor of the d-tree. |
1273 | * the branching factor of the d-tree. |
826 | */ |
1274 | */ |
827 | |
1275 | |
828 | /* |
1276 | /* |
… | |
… | |
837 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1285 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
838 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1286 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
839 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1287 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
840 | |
1288 | |
841 | /* away from the root */ |
1289 | /* away from the root */ |
842 | void inline_speed |
1290 | inline_speed void |
843 | downheap (ANHE *heap, int N, int k) |
1291 | downheap (ANHE *heap, int N, int k) |
844 | { |
1292 | { |
845 | ANHE he = heap [k]; |
1293 | ANHE he = heap [k]; |
846 | ANHE *E = heap + N + HEAP0; |
1294 | ANHE *E = heap + N + HEAP0; |
847 | |
1295 | |
… | |
… | |
887 | #define HEAP0 1 |
1335 | #define HEAP0 1 |
888 | #define HPARENT(k) ((k) >> 1) |
1336 | #define HPARENT(k) ((k) >> 1) |
889 | #define UPHEAP_DONE(p,k) (!(p)) |
1337 | #define UPHEAP_DONE(p,k) (!(p)) |
890 | |
1338 | |
891 | /* away from the root */ |
1339 | /* away from the root */ |
892 | void inline_speed |
1340 | inline_speed void |
893 | downheap (ANHE *heap, int N, int k) |
1341 | downheap (ANHE *heap, int N, int k) |
894 | { |
1342 | { |
895 | ANHE he = heap [k]; |
1343 | ANHE he = heap [k]; |
896 | |
1344 | |
897 | for (;;) |
1345 | for (;;) |
898 | { |
1346 | { |
899 | int c = k << 1; |
1347 | int c = k << 1; |
900 | |
1348 | |
901 | if (c > N + HEAP0 - 1) |
1349 | if (c >= N + HEAP0) |
902 | break; |
1350 | break; |
903 | |
1351 | |
904 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1352 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
905 | ? 1 : 0; |
1353 | ? 1 : 0; |
906 | |
1354 | |
… | |
… | |
917 | ev_active (ANHE_w (he)) = k; |
1365 | ev_active (ANHE_w (he)) = k; |
918 | } |
1366 | } |
919 | #endif |
1367 | #endif |
920 | |
1368 | |
921 | /* towards the root */ |
1369 | /* towards the root */ |
922 | void inline_speed |
1370 | inline_speed void |
923 | upheap (ANHE *heap, int k) |
1371 | upheap (ANHE *heap, int k) |
924 | { |
1372 | { |
925 | ANHE he = heap [k]; |
1373 | ANHE he = heap [k]; |
926 | |
1374 | |
927 | for (;;) |
1375 | for (;;) |
… | |
… | |
938 | |
1386 | |
939 | heap [k] = he; |
1387 | heap [k] = he; |
940 | ev_active (ANHE_w (he)) = k; |
1388 | ev_active (ANHE_w (he)) = k; |
941 | } |
1389 | } |
942 | |
1390 | |
943 | void inline_size |
1391 | /* move an element suitably so it is in a correct place */ |
|
|
1392 | inline_size void |
944 | adjustheap (ANHE *heap, int N, int k) |
1393 | adjustheap (ANHE *heap, int N, int k) |
945 | { |
1394 | { |
946 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1395 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
947 | upheap (heap, k); |
1396 | upheap (heap, k); |
948 | else |
1397 | else |
949 | downheap (heap, N, k); |
1398 | downheap (heap, N, k); |
950 | } |
1399 | } |
951 | |
1400 | |
952 | /* rebuild the heap: this function is used only once and executed rarely */ |
1401 | /* rebuild the heap: this function is used only once and executed rarely */ |
953 | void inline_size |
1402 | inline_size void |
954 | reheap (ANHE *heap, int N) |
1403 | reheap (ANHE *heap, int N) |
955 | { |
1404 | { |
956 | int i; |
1405 | int i; |
957 | |
1406 | |
958 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1407 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
961 | upheap (heap, i + HEAP0); |
1410 | upheap (heap, i + HEAP0); |
962 | } |
1411 | } |
963 | |
1412 | |
964 | /*****************************************************************************/ |
1413 | /*****************************************************************************/ |
965 | |
1414 | |
|
|
1415 | /* associate signal watchers to a signal signal */ |
966 | typedef struct |
1416 | typedef struct |
967 | { |
1417 | { |
|
|
1418 | EV_ATOMIC_T pending; |
|
|
1419 | #if EV_MULTIPLICITY |
|
|
1420 | EV_P; |
|
|
1421 | #endif |
968 | WL head; |
1422 | WL head; |
969 | EV_ATOMIC_T gotsig; |
|
|
970 | } ANSIG; |
1423 | } ANSIG; |
971 | |
1424 | |
972 | static ANSIG *signals; |
1425 | static ANSIG signals [EV_NSIG - 1]; |
973 | static int signalmax; |
|
|
974 | |
|
|
975 | static EV_ATOMIC_T gotsig; |
|
|
976 | |
1426 | |
977 | /*****************************************************************************/ |
1427 | /*****************************************************************************/ |
978 | |
1428 | |
979 | void inline_speed |
1429 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
980 | fd_intern (int fd) |
|
|
981 | { |
|
|
982 | #ifdef _WIN32 |
|
|
983 | unsigned long arg = 1; |
|
|
984 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
985 | #else |
|
|
986 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
987 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
988 | #endif |
|
|
989 | } |
|
|
990 | |
1430 | |
991 | static void noinline |
1431 | static void noinline ecb_cold |
992 | evpipe_init (EV_P) |
1432 | evpipe_init (EV_P) |
993 | { |
1433 | { |
994 | if (!ev_is_active (&pipeev)) |
1434 | if (!ev_is_active (&pipe_w)) |
995 | { |
1435 | { |
996 | #if EV_USE_EVENTFD |
1436 | # if EV_USE_EVENTFD |
|
|
1437 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1438 | if (evfd < 0 && errno == EINVAL) |
997 | if ((evfd = eventfd (0, 0)) >= 0) |
1439 | evfd = eventfd (0, 0); |
|
|
1440 | |
|
|
1441 | if (evfd >= 0) |
998 | { |
1442 | { |
999 | evpipe [0] = -1; |
1443 | evpipe [0] = -1; |
1000 | fd_intern (evfd); |
1444 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1001 | ev_io_set (&pipeev, evfd, EV_READ); |
1445 | ev_io_set (&pipe_w, evfd, EV_READ); |
1002 | } |
1446 | } |
1003 | else |
1447 | else |
1004 | #endif |
1448 | # endif |
1005 | { |
1449 | { |
1006 | while (pipe (evpipe)) |
1450 | while (pipe (evpipe)) |
1007 | ev_syserr ("(libev) error creating signal/async pipe"); |
1451 | ev_syserr ("(libev) error creating signal/async pipe"); |
1008 | |
1452 | |
1009 | fd_intern (evpipe [0]); |
1453 | fd_intern (evpipe [0]); |
1010 | fd_intern (evpipe [1]); |
1454 | fd_intern (evpipe [1]); |
1011 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1455 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1012 | } |
1456 | } |
1013 | |
1457 | |
1014 | ev_io_start (EV_A_ &pipeev); |
1458 | ev_io_start (EV_A_ &pipe_w); |
1015 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1459 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1016 | } |
1460 | } |
1017 | } |
1461 | } |
1018 | |
1462 | |
1019 | void inline_size |
1463 | inline_speed void |
1020 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1464 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1021 | { |
1465 | { |
1022 | if (!*flag) |
1466 | if (expect_true (*flag)) |
|
|
1467 | return; |
|
|
1468 | |
|
|
1469 | *flag = 1; |
|
|
1470 | |
|
|
1471 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1472 | |
|
|
1473 | pipe_write_skipped = 1; |
|
|
1474 | |
|
|
1475 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1476 | |
|
|
1477 | if (pipe_write_wanted) |
1023 | { |
1478 | { |
|
|
1479 | int old_errno; |
|
|
1480 | |
|
|
1481 | pipe_write_skipped = 0; /* just an optimsiation, no fence needed */ |
|
|
1482 | |
1024 | int old_errno = errno; /* save errno because write might clobber it */ |
1483 | old_errno = errno; /* save errno because write will clobber it */ |
1025 | |
|
|
1026 | *flag = 1; |
|
|
1027 | |
1484 | |
1028 | #if EV_USE_EVENTFD |
1485 | #if EV_USE_EVENTFD |
1029 | if (evfd >= 0) |
1486 | if (evfd >= 0) |
1030 | { |
1487 | { |
1031 | uint64_t counter = 1; |
1488 | uint64_t counter = 1; |
1032 | write (evfd, &counter, sizeof (uint64_t)); |
1489 | write (evfd, &counter, sizeof (uint64_t)); |
1033 | } |
1490 | } |
1034 | else |
1491 | else |
1035 | #endif |
1492 | #endif |
|
|
1493 | { |
|
|
1494 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1495 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1496 | /* so when you think this write should be a send instead, please find out */ |
|
|
1497 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1498 | /* tell me. thank you. */ |
1036 | write (evpipe [1], &old_errno, 1); |
1499 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1500 | } |
1037 | |
1501 | |
1038 | errno = old_errno; |
1502 | errno = old_errno; |
1039 | } |
1503 | } |
1040 | } |
1504 | } |
1041 | |
1505 | |
|
|
1506 | /* called whenever the libev signal pipe */ |
|
|
1507 | /* got some events (signal, async) */ |
1042 | static void |
1508 | static void |
1043 | pipecb (EV_P_ ev_io *iow, int revents) |
1509 | pipecb (EV_P_ ev_io *iow, int revents) |
1044 | { |
1510 | { |
|
|
1511 | int i; |
|
|
1512 | |
|
|
1513 | if (revents & EV_READ) |
|
|
1514 | { |
1045 | #if EV_USE_EVENTFD |
1515 | #if EV_USE_EVENTFD |
1046 | if (evfd >= 0) |
1516 | if (evfd >= 0) |
1047 | { |
1517 | { |
1048 | uint64_t counter; |
1518 | uint64_t counter; |
1049 | read (evfd, &counter, sizeof (uint64_t)); |
1519 | read (evfd, &counter, sizeof (uint64_t)); |
1050 | } |
1520 | } |
1051 | else |
1521 | else |
1052 | #endif |
1522 | #endif |
1053 | { |
1523 | { |
1054 | char dummy; |
1524 | char dummy; |
|
|
1525 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1055 | read (evpipe [0], &dummy, 1); |
1526 | read (evpipe [0], &dummy, 1); |
|
|
1527 | } |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | pipe_write_skipped = 0; |
|
|
1531 | |
|
|
1532 | #if EV_SIGNAL_ENABLE |
|
|
1533 | if (sig_pending) |
1056 | } |
1534 | { |
|
|
1535 | sig_pending = 0; |
1057 | |
1536 | |
1058 | if (gotsig && ev_is_default_loop (EV_A)) |
1537 | for (i = EV_NSIG - 1; i--; ) |
1059 | { |
1538 | if (expect_false (signals [i].pending)) |
1060 | int signum; |
|
|
1061 | gotsig = 0; |
|
|
1062 | |
|
|
1063 | for (signum = signalmax; signum--; ) |
|
|
1064 | if (signals [signum].gotsig) |
|
|
1065 | ev_feed_signal_event (EV_A_ signum + 1); |
1539 | ev_feed_signal_event (EV_A_ i + 1); |
1066 | } |
1540 | } |
|
|
1541 | #endif |
1067 | |
1542 | |
1068 | #if EV_ASYNC_ENABLE |
1543 | #if EV_ASYNC_ENABLE |
1069 | if (gotasync) |
1544 | if (async_pending) |
1070 | { |
1545 | { |
1071 | int i; |
1546 | async_pending = 0; |
1072 | gotasync = 0; |
|
|
1073 | |
1547 | |
1074 | for (i = asynccnt; i--; ) |
1548 | for (i = asynccnt; i--; ) |
1075 | if (asyncs [i]->sent) |
1549 | if (asyncs [i]->sent) |
1076 | { |
1550 | { |
1077 | asyncs [i]->sent = 0; |
1551 | asyncs [i]->sent = 0; |
… | |
… | |
1081 | #endif |
1555 | #endif |
1082 | } |
1556 | } |
1083 | |
1557 | |
1084 | /*****************************************************************************/ |
1558 | /*****************************************************************************/ |
1085 | |
1559 | |
|
|
1560 | void |
|
|
1561 | ev_feed_signal (int signum) |
|
|
1562 | { |
|
|
1563 | #if EV_MULTIPLICITY |
|
|
1564 | EV_P = signals [signum - 1].loop; |
|
|
1565 | |
|
|
1566 | if (!EV_A) |
|
|
1567 | return; |
|
|
1568 | #endif |
|
|
1569 | |
|
|
1570 | if (!ev_active (&pipe_w)) |
|
|
1571 | return; |
|
|
1572 | |
|
|
1573 | signals [signum - 1].pending = 1; |
|
|
1574 | evpipe_write (EV_A_ &sig_pending); |
|
|
1575 | } |
|
|
1576 | |
1086 | static void |
1577 | static void |
1087 | ev_sighandler (int signum) |
1578 | ev_sighandler (int signum) |
1088 | { |
1579 | { |
1089 | #if EV_MULTIPLICITY |
|
|
1090 | struct ev_loop *loop = &default_loop_struct; |
|
|
1091 | #endif |
|
|
1092 | |
|
|
1093 | #if _WIN32 |
1580 | #ifdef _WIN32 |
1094 | signal (signum, ev_sighandler); |
1581 | signal (signum, ev_sighandler); |
1095 | #endif |
1582 | #endif |
1096 | |
1583 | |
1097 | signals [signum - 1].gotsig = 1; |
1584 | ev_feed_signal (signum); |
1098 | evpipe_write (EV_A_ &gotsig); |
|
|
1099 | } |
1585 | } |
1100 | |
1586 | |
1101 | void noinline |
1587 | void noinline |
1102 | ev_feed_signal_event (EV_P_ int signum) |
1588 | ev_feed_signal_event (EV_P_ int signum) |
1103 | { |
1589 | { |
1104 | WL w; |
1590 | WL w; |
1105 | |
1591 | |
|
|
1592 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1593 | return; |
|
|
1594 | |
|
|
1595 | --signum; |
|
|
1596 | |
1106 | #if EV_MULTIPLICITY |
1597 | #if EV_MULTIPLICITY |
1107 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1598 | /* it is permissible to try to feed a signal to the wrong loop */ |
1108 | #endif |
1599 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1109 | |
1600 | |
1110 | --signum; |
1601 | if (expect_false (signals [signum].loop != EV_A)) |
1111 | |
|
|
1112 | if (signum < 0 || signum >= signalmax) |
|
|
1113 | return; |
1602 | return; |
|
|
1603 | #endif |
1114 | |
1604 | |
1115 | signals [signum].gotsig = 0; |
1605 | signals [signum].pending = 0; |
1116 | |
1606 | |
1117 | for (w = signals [signum].head; w; w = w->next) |
1607 | for (w = signals [signum].head; w; w = w->next) |
1118 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1608 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1119 | } |
1609 | } |
1120 | |
1610 | |
|
|
1611 | #if EV_USE_SIGNALFD |
|
|
1612 | static void |
|
|
1613 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1614 | { |
|
|
1615 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1616 | |
|
|
1617 | for (;;) |
|
|
1618 | { |
|
|
1619 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1620 | |
|
|
1621 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1622 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1623 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1624 | |
|
|
1625 | if (res < (ssize_t)sizeof (si)) |
|
|
1626 | break; |
|
|
1627 | } |
|
|
1628 | } |
|
|
1629 | #endif |
|
|
1630 | |
|
|
1631 | #endif |
|
|
1632 | |
1121 | /*****************************************************************************/ |
1633 | /*****************************************************************************/ |
1122 | |
1634 | |
|
|
1635 | #if EV_CHILD_ENABLE |
1123 | static WL childs [EV_PID_HASHSIZE]; |
1636 | static WL childs [EV_PID_HASHSIZE]; |
1124 | |
|
|
1125 | #ifndef _WIN32 |
|
|
1126 | |
1637 | |
1127 | static ev_signal childev; |
1638 | static ev_signal childev; |
1128 | |
1639 | |
1129 | #ifndef WIFCONTINUED |
1640 | #ifndef WIFCONTINUED |
1130 | # define WIFCONTINUED(status) 0 |
1641 | # define WIFCONTINUED(status) 0 |
1131 | #endif |
1642 | #endif |
1132 | |
1643 | |
1133 | void inline_speed |
1644 | /* handle a single child status event */ |
|
|
1645 | inline_speed void |
1134 | child_reap (EV_P_ int chain, int pid, int status) |
1646 | child_reap (EV_P_ int chain, int pid, int status) |
1135 | { |
1647 | { |
1136 | ev_child *w; |
1648 | ev_child *w; |
1137 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1649 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1138 | |
1650 | |
1139 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1651 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1140 | { |
1652 | { |
1141 | if ((w->pid == pid || !w->pid) |
1653 | if ((w->pid == pid || !w->pid) |
1142 | && (!traced || (w->flags & 1))) |
1654 | && (!traced || (w->flags & 1))) |
1143 | { |
1655 | { |
1144 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1656 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1151 | |
1663 | |
1152 | #ifndef WCONTINUED |
1664 | #ifndef WCONTINUED |
1153 | # define WCONTINUED 0 |
1665 | # define WCONTINUED 0 |
1154 | #endif |
1666 | #endif |
1155 | |
1667 | |
|
|
1668 | /* called on sigchld etc., calls waitpid */ |
1156 | static void |
1669 | static void |
1157 | childcb (EV_P_ ev_signal *sw, int revents) |
1670 | childcb (EV_P_ ev_signal *sw, int revents) |
1158 | { |
1671 | { |
1159 | int pid, status; |
1672 | int pid, status; |
1160 | |
1673 | |
… | |
… | |
1168 | /* make sure we are called again until all children have been reaped */ |
1681 | /* make sure we are called again until all children have been reaped */ |
1169 | /* we need to do it this way so that the callback gets called before we continue */ |
1682 | /* we need to do it this way so that the callback gets called before we continue */ |
1170 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1683 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1171 | |
1684 | |
1172 | child_reap (EV_A_ pid, pid, status); |
1685 | child_reap (EV_A_ pid, pid, status); |
1173 | if (EV_PID_HASHSIZE > 1) |
1686 | if ((EV_PID_HASHSIZE) > 1) |
1174 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1687 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1175 | } |
1688 | } |
1176 | |
1689 | |
1177 | #endif |
1690 | #endif |
1178 | |
1691 | |
1179 | /*****************************************************************************/ |
1692 | /*****************************************************************************/ |
1180 | |
1693 | |
|
|
1694 | #if EV_USE_IOCP |
|
|
1695 | # include "ev_iocp.c" |
|
|
1696 | #endif |
1181 | #if EV_USE_PORT |
1697 | #if EV_USE_PORT |
1182 | # include "ev_port.c" |
1698 | # include "ev_port.c" |
1183 | #endif |
1699 | #endif |
1184 | #if EV_USE_KQUEUE |
1700 | #if EV_USE_KQUEUE |
1185 | # include "ev_kqueue.c" |
1701 | # include "ev_kqueue.c" |
… | |
… | |
1192 | #endif |
1708 | #endif |
1193 | #if EV_USE_SELECT |
1709 | #if EV_USE_SELECT |
1194 | # include "ev_select.c" |
1710 | # include "ev_select.c" |
1195 | #endif |
1711 | #endif |
1196 | |
1712 | |
1197 | int |
1713 | int ecb_cold |
1198 | ev_version_major (void) |
1714 | ev_version_major (void) |
1199 | { |
1715 | { |
1200 | return EV_VERSION_MAJOR; |
1716 | return EV_VERSION_MAJOR; |
1201 | } |
1717 | } |
1202 | |
1718 | |
1203 | int |
1719 | int ecb_cold |
1204 | ev_version_minor (void) |
1720 | ev_version_minor (void) |
1205 | { |
1721 | { |
1206 | return EV_VERSION_MINOR; |
1722 | return EV_VERSION_MINOR; |
1207 | } |
1723 | } |
1208 | |
1724 | |
1209 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1725 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1210 | int inline_size |
1726 | int inline_size ecb_cold |
1211 | enable_secure (void) |
1727 | enable_secure (void) |
1212 | { |
1728 | { |
1213 | #ifdef _WIN32 |
1729 | #ifdef _WIN32 |
1214 | return 0; |
1730 | return 0; |
1215 | #else |
1731 | #else |
1216 | return getuid () != geteuid () |
1732 | return getuid () != geteuid () |
1217 | || getgid () != getegid (); |
1733 | || getgid () != getegid (); |
1218 | #endif |
1734 | #endif |
1219 | } |
1735 | } |
1220 | |
1736 | |
1221 | unsigned int |
1737 | unsigned int ecb_cold |
1222 | ev_supported_backends (void) |
1738 | ev_supported_backends (void) |
1223 | { |
1739 | { |
1224 | unsigned int flags = 0; |
1740 | unsigned int flags = 0; |
1225 | |
1741 | |
1226 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1742 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1230 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1746 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1231 | |
1747 | |
1232 | return flags; |
1748 | return flags; |
1233 | } |
1749 | } |
1234 | |
1750 | |
1235 | unsigned int |
1751 | unsigned int ecb_cold |
1236 | ev_recommended_backends (void) |
1752 | ev_recommended_backends (void) |
1237 | { |
1753 | { |
1238 | unsigned int flags = ev_supported_backends (); |
1754 | unsigned int flags = ev_supported_backends (); |
1239 | |
1755 | |
1240 | #ifndef __NetBSD__ |
1756 | #ifndef __NetBSD__ |
1241 | /* kqueue is borked on everything but netbsd apparently */ |
1757 | /* kqueue is borked on everything but netbsd apparently */ |
1242 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1758 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1243 | flags &= ~EVBACKEND_KQUEUE; |
1759 | flags &= ~EVBACKEND_KQUEUE; |
1244 | #endif |
1760 | #endif |
1245 | #ifdef __APPLE__ |
1761 | #ifdef __APPLE__ |
1246 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1762 | /* only select works correctly on that "unix-certified" platform */ |
1247 | flags &= ~EVBACKEND_POLL; |
1763 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1764 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1765 | #endif |
|
|
1766 | #ifdef __FreeBSD__ |
|
|
1767 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1248 | #endif |
1768 | #endif |
1249 | |
1769 | |
1250 | return flags; |
1770 | return flags; |
1251 | } |
1771 | } |
1252 | |
1772 | |
1253 | unsigned int |
1773 | unsigned int ecb_cold |
1254 | ev_embeddable_backends (void) |
1774 | ev_embeddable_backends (void) |
1255 | { |
1775 | { |
1256 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1776 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1257 | |
1777 | |
1258 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1778 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1259 | /* please fix it and tell me how to detect the fix */ |
1779 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1260 | flags &= ~EVBACKEND_EPOLL; |
1780 | flags &= ~EVBACKEND_EPOLL; |
1261 | |
1781 | |
1262 | return flags; |
1782 | return flags; |
1263 | } |
1783 | } |
1264 | |
1784 | |
1265 | unsigned int |
1785 | unsigned int |
1266 | ev_backend (EV_P) |
1786 | ev_backend (EV_P) |
1267 | { |
1787 | { |
1268 | return backend; |
1788 | return backend; |
1269 | } |
1789 | } |
1270 | |
1790 | |
|
|
1791 | #if EV_FEATURE_API |
1271 | unsigned int |
1792 | unsigned int |
1272 | ev_loop_count (EV_P) |
1793 | ev_iteration (EV_P) |
1273 | { |
1794 | { |
1274 | return loop_count; |
1795 | return loop_count; |
|
|
1796 | } |
|
|
1797 | |
|
|
1798 | unsigned int |
|
|
1799 | ev_depth (EV_P) |
|
|
1800 | { |
|
|
1801 | return loop_depth; |
1275 | } |
1802 | } |
1276 | |
1803 | |
1277 | void |
1804 | void |
1278 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1805 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1279 | { |
1806 | { |
… | |
… | |
1284 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1811 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1285 | { |
1812 | { |
1286 | timeout_blocktime = interval; |
1813 | timeout_blocktime = interval; |
1287 | } |
1814 | } |
1288 | |
1815 | |
|
|
1816 | void |
|
|
1817 | ev_set_userdata (EV_P_ void *data) |
|
|
1818 | { |
|
|
1819 | userdata = data; |
|
|
1820 | } |
|
|
1821 | |
|
|
1822 | void * |
|
|
1823 | ev_userdata (EV_P) |
|
|
1824 | { |
|
|
1825 | return userdata; |
|
|
1826 | } |
|
|
1827 | |
|
|
1828 | void |
|
|
1829 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1830 | { |
|
|
1831 | invoke_cb = invoke_pending_cb; |
|
|
1832 | } |
|
|
1833 | |
|
|
1834 | void |
|
|
1835 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1836 | { |
|
|
1837 | release_cb = release; |
|
|
1838 | acquire_cb = acquire; |
|
|
1839 | } |
|
|
1840 | #endif |
|
|
1841 | |
|
|
1842 | /* initialise a loop structure, must be zero-initialised */ |
1289 | static void noinline |
1843 | static void noinline ecb_cold |
1290 | loop_init (EV_P_ unsigned int flags) |
1844 | loop_init (EV_P_ unsigned int flags) |
1291 | { |
1845 | { |
1292 | if (!backend) |
1846 | if (!backend) |
1293 | { |
1847 | { |
|
|
1848 | origflags = flags; |
|
|
1849 | |
|
|
1850 | #if EV_USE_REALTIME |
|
|
1851 | if (!have_realtime) |
|
|
1852 | { |
|
|
1853 | struct timespec ts; |
|
|
1854 | |
|
|
1855 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1856 | have_realtime = 1; |
|
|
1857 | } |
|
|
1858 | #endif |
|
|
1859 | |
1294 | #if EV_USE_MONOTONIC |
1860 | #if EV_USE_MONOTONIC |
|
|
1861 | if (!have_monotonic) |
1295 | { |
1862 | { |
1296 | struct timespec ts; |
1863 | struct timespec ts; |
|
|
1864 | |
1297 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1865 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1298 | have_monotonic = 1; |
1866 | have_monotonic = 1; |
1299 | } |
1867 | } |
1300 | #endif |
|
|
1301 | |
|
|
1302 | ev_rt_now = ev_time (); |
|
|
1303 | mn_now = get_clock (); |
|
|
1304 | now_floor = mn_now; |
|
|
1305 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1306 | |
|
|
1307 | io_blocktime = 0.; |
|
|
1308 | timeout_blocktime = 0.; |
|
|
1309 | backend = 0; |
|
|
1310 | backend_fd = -1; |
|
|
1311 | gotasync = 0; |
|
|
1312 | #if EV_USE_INOTIFY |
|
|
1313 | fs_fd = -2; |
|
|
1314 | #endif |
1868 | #endif |
1315 | |
1869 | |
1316 | /* pid check not overridable via env */ |
1870 | /* pid check not overridable via env */ |
1317 | #ifndef _WIN32 |
1871 | #ifndef _WIN32 |
1318 | if (flags & EVFLAG_FORKCHECK) |
1872 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1322 | if (!(flags & EVFLAG_NOENV) |
1876 | if (!(flags & EVFLAG_NOENV) |
1323 | && !enable_secure () |
1877 | && !enable_secure () |
1324 | && getenv ("LIBEV_FLAGS")) |
1878 | && getenv ("LIBEV_FLAGS")) |
1325 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1879 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1326 | |
1880 | |
1327 | if (!(flags & 0x0000ffffU)) |
1881 | ev_rt_now = ev_time (); |
|
|
1882 | mn_now = get_clock (); |
|
|
1883 | now_floor = mn_now; |
|
|
1884 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1885 | #if EV_FEATURE_API |
|
|
1886 | invoke_cb = ev_invoke_pending; |
|
|
1887 | #endif |
|
|
1888 | |
|
|
1889 | io_blocktime = 0.; |
|
|
1890 | timeout_blocktime = 0.; |
|
|
1891 | backend = 0; |
|
|
1892 | backend_fd = -1; |
|
|
1893 | sig_pending = 0; |
|
|
1894 | #if EV_ASYNC_ENABLE |
|
|
1895 | async_pending = 0; |
|
|
1896 | #endif |
|
|
1897 | pipe_write_skipped = 0; |
|
|
1898 | pipe_write_wanted = 0; |
|
|
1899 | #if EV_USE_INOTIFY |
|
|
1900 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1901 | #endif |
|
|
1902 | #if EV_USE_SIGNALFD |
|
|
1903 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1904 | #endif |
|
|
1905 | |
|
|
1906 | if (!(flags & EVBACKEND_MASK)) |
1328 | flags |= ev_recommended_backends (); |
1907 | flags |= ev_recommended_backends (); |
1329 | |
1908 | |
|
|
1909 | #if EV_USE_IOCP |
|
|
1910 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1911 | #endif |
1330 | #if EV_USE_PORT |
1912 | #if EV_USE_PORT |
1331 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1913 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1332 | #endif |
1914 | #endif |
1333 | #if EV_USE_KQUEUE |
1915 | #if EV_USE_KQUEUE |
1334 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1916 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1341 | #endif |
1923 | #endif |
1342 | #if EV_USE_SELECT |
1924 | #if EV_USE_SELECT |
1343 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1925 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1344 | #endif |
1926 | #endif |
1345 | |
1927 | |
|
|
1928 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1929 | |
|
|
1930 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1346 | ev_init (&pipeev, pipecb); |
1931 | ev_init (&pipe_w, pipecb); |
1347 | ev_set_priority (&pipeev, EV_MAXPRI); |
1932 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1933 | #endif |
1348 | } |
1934 | } |
1349 | } |
1935 | } |
1350 | |
1936 | |
1351 | static void noinline |
1937 | /* free up a loop structure */ |
|
|
1938 | void ecb_cold |
1352 | loop_destroy (EV_P) |
1939 | ev_loop_destroy (EV_P) |
1353 | { |
1940 | { |
1354 | int i; |
1941 | int i; |
1355 | |
1942 | |
|
|
1943 | #if EV_MULTIPLICITY |
|
|
1944 | /* mimic free (0) */ |
|
|
1945 | if (!EV_A) |
|
|
1946 | return; |
|
|
1947 | #endif |
|
|
1948 | |
|
|
1949 | #if EV_CLEANUP_ENABLE |
|
|
1950 | /* queue cleanup watchers (and execute them) */ |
|
|
1951 | if (expect_false (cleanupcnt)) |
|
|
1952 | { |
|
|
1953 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1954 | EV_INVOKE_PENDING; |
|
|
1955 | } |
|
|
1956 | #endif |
|
|
1957 | |
|
|
1958 | #if EV_CHILD_ENABLE |
|
|
1959 | if (ev_is_active (&childev)) |
|
|
1960 | { |
|
|
1961 | ev_ref (EV_A); /* child watcher */ |
|
|
1962 | ev_signal_stop (EV_A_ &childev); |
|
|
1963 | } |
|
|
1964 | #endif |
|
|
1965 | |
1356 | if (ev_is_active (&pipeev)) |
1966 | if (ev_is_active (&pipe_w)) |
1357 | { |
1967 | { |
1358 | ev_ref (EV_A); /* signal watcher */ |
1968 | /*ev_ref (EV_A);*/ |
1359 | ev_io_stop (EV_A_ &pipeev); |
1969 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1360 | |
1970 | |
1361 | #if EV_USE_EVENTFD |
1971 | #if EV_USE_EVENTFD |
1362 | if (evfd >= 0) |
1972 | if (evfd >= 0) |
1363 | close (evfd); |
1973 | close (evfd); |
1364 | #endif |
1974 | #endif |
1365 | |
1975 | |
1366 | if (evpipe [0] >= 0) |
1976 | if (evpipe [0] >= 0) |
1367 | { |
1977 | { |
1368 | close (evpipe [0]); |
1978 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1369 | close (evpipe [1]); |
1979 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1370 | } |
1980 | } |
1371 | } |
1981 | } |
|
|
1982 | |
|
|
1983 | #if EV_USE_SIGNALFD |
|
|
1984 | if (ev_is_active (&sigfd_w)) |
|
|
1985 | close (sigfd); |
|
|
1986 | #endif |
1372 | |
1987 | |
1373 | #if EV_USE_INOTIFY |
1988 | #if EV_USE_INOTIFY |
1374 | if (fs_fd >= 0) |
1989 | if (fs_fd >= 0) |
1375 | close (fs_fd); |
1990 | close (fs_fd); |
1376 | #endif |
1991 | #endif |
1377 | |
1992 | |
1378 | if (backend_fd >= 0) |
1993 | if (backend_fd >= 0) |
1379 | close (backend_fd); |
1994 | close (backend_fd); |
1380 | |
1995 | |
|
|
1996 | #if EV_USE_IOCP |
|
|
1997 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1998 | #endif |
1381 | #if EV_USE_PORT |
1999 | #if EV_USE_PORT |
1382 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2000 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1383 | #endif |
2001 | #endif |
1384 | #if EV_USE_KQUEUE |
2002 | #if EV_USE_KQUEUE |
1385 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2003 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1400 | #if EV_IDLE_ENABLE |
2018 | #if EV_IDLE_ENABLE |
1401 | array_free (idle, [i]); |
2019 | array_free (idle, [i]); |
1402 | #endif |
2020 | #endif |
1403 | } |
2021 | } |
1404 | |
2022 | |
1405 | ev_free (anfds); anfdmax = 0; |
2023 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1406 | |
2024 | |
1407 | /* have to use the microsoft-never-gets-it-right macro */ |
2025 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2026 | array_free (rfeed, EMPTY); |
1408 | array_free (fdchange, EMPTY); |
2027 | array_free (fdchange, EMPTY); |
1409 | array_free (timer, EMPTY); |
2028 | array_free (timer, EMPTY); |
1410 | #if EV_PERIODIC_ENABLE |
2029 | #if EV_PERIODIC_ENABLE |
1411 | array_free (periodic, EMPTY); |
2030 | array_free (periodic, EMPTY); |
1412 | #endif |
2031 | #endif |
1413 | #if EV_FORK_ENABLE |
2032 | #if EV_FORK_ENABLE |
1414 | array_free (fork, EMPTY); |
2033 | array_free (fork, EMPTY); |
1415 | #endif |
2034 | #endif |
|
|
2035 | #if EV_CLEANUP_ENABLE |
|
|
2036 | array_free (cleanup, EMPTY); |
|
|
2037 | #endif |
1416 | array_free (prepare, EMPTY); |
2038 | array_free (prepare, EMPTY); |
1417 | array_free (check, EMPTY); |
2039 | array_free (check, EMPTY); |
1418 | #if EV_ASYNC_ENABLE |
2040 | #if EV_ASYNC_ENABLE |
1419 | array_free (async, EMPTY); |
2041 | array_free (async, EMPTY); |
1420 | #endif |
2042 | #endif |
1421 | |
2043 | |
1422 | backend = 0; |
2044 | backend = 0; |
|
|
2045 | |
|
|
2046 | #if EV_MULTIPLICITY |
|
|
2047 | if (ev_is_default_loop (EV_A)) |
|
|
2048 | #endif |
|
|
2049 | ev_default_loop_ptr = 0; |
|
|
2050 | #if EV_MULTIPLICITY |
|
|
2051 | else |
|
|
2052 | ev_free (EV_A); |
|
|
2053 | #endif |
1423 | } |
2054 | } |
1424 | |
2055 | |
1425 | #if EV_USE_INOTIFY |
2056 | #if EV_USE_INOTIFY |
1426 | void inline_size infy_fork (EV_P); |
2057 | inline_size void infy_fork (EV_P); |
1427 | #endif |
2058 | #endif |
1428 | |
2059 | |
1429 | void inline_size |
2060 | inline_size void |
1430 | loop_fork (EV_P) |
2061 | loop_fork (EV_P) |
1431 | { |
2062 | { |
1432 | #if EV_USE_PORT |
2063 | #if EV_USE_PORT |
1433 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2064 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1434 | #endif |
2065 | #endif |
… | |
… | |
1440 | #endif |
2071 | #endif |
1441 | #if EV_USE_INOTIFY |
2072 | #if EV_USE_INOTIFY |
1442 | infy_fork (EV_A); |
2073 | infy_fork (EV_A); |
1443 | #endif |
2074 | #endif |
1444 | |
2075 | |
1445 | if (ev_is_active (&pipeev)) |
2076 | if (ev_is_active (&pipe_w)) |
1446 | { |
2077 | { |
1447 | /* this "locks" the handlers against writing to the pipe */ |
2078 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1448 | /* while we modify the fd vars */ |
|
|
1449 | gotsig = 1; |
|
|
1450 | #if EV_ASYNC_ENABLE |
|
|
1451 | gotasync = 1; |
|
|
1452 | #endif |
|
|
1453 | |
2079 | |
1454 | ev_ref (EV_A); |
2080 | ev_ref (EV_A); |
1455 | ev_io_stop (EV_A_ &pipeev); |
2081 | ev_io_stop (EV_A_ &pipe_w); |
1456 | |
2082 | |
1457 | #if EV_USE_EVENTFD |
2083 | #if EV_USE_EVENTFD |
1458 | if (evfd >= 0) |
2084 | if (evfd >= 0) |
1459 | close (evfd); |
2085 | close (evfd); |
1460 | #endif |
2086 | #endif |
1461 | |
2087 | |
1462 | if (evpipe [0] >= 0) |
2088 | if (evpipe [0] >= 0) |
1463 | { |
2089 | { |
1464 | close (evpipe [0]); |
2090 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1465 | close (evpipe [1]); |
2091 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1466 | } |
2092 | } |
1467 | |
2093 | |
|
|
2094 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1468 | evpipe_init (EV_A); |
2095 | evpipe_init (EV_A); |
1469 | /* now iterate over everything, in case we missed something */ |
2096 | /* now iterate over everything, in case we missed something */ |
1470 | pipecb (EV_A_ &pipeev, EV_READ); |
2097 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2098 | #endif |
1471 | } |
2099 | } |
1472 | |
2100 | |
1473 | postfork = 0; |
2101 | postfork = 0; |
1474 | } |
2102 | } |
1475 | |
2103 | |
1476 | #if EV_MULTIPLICITY |
2104 | #if EV_MULTIPLICITY |
1477 | |
2105 | |
1478 | struct ev_loop * |
2106 | struct ev_loop * ecb_cold |
1479 | ev_loop_new (unsigned int flags) |
2107 | ev_loop_new (unsigned int flags) |
1480 | { |
2108 | { |
1481 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2109 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1482 | |
2110 | |
1483 | memset (loop, 0, sizeof (struct ev_loop)); |
2111 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1484 | |
|
|
1485 | loop_init (EV_A_ flags); |
2112 | loop_init (EV_A_ flags); |
1486 | |
2113 | |
1487 | if (ev_backend (EV_A)) |
2114 | if (ev_backend (EV_A)) |
1488 | return loop; |
2115 | return EV_A; |
1489 | |
2116 | |
|
|
2117 | ev_free (EV_A); |
1490 | return 0; |
2118 | return 0; |
1491 | } |
2119 | } |
1492 | |
2120 | |
1493 | void |
2121 | #endif /* multiplicity */ |
1494 | ev_loop_destroy (EV_P) |
|
|
1495 | { |
|
|
1496 | loop_destroy (EV_A); |
|
|
1497 | ev_free (loop); |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | void |
|
|
1501 | ev_loop_fork (EV_P) |
|
|
1502 | { |
|
|
1503 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1504 | } |
|
|
1505 | |
2122 | |
1506 | #if EV_VERIFY |
2123 | #if EV_VERIFY |
1507 | static void noinline |
2124 | static void noinline ecb_cold |
1508 | verify_watcher (EV_P_ W w) |
2125 | verify_watcher (EV_P_ W w) |
1509 | { |
2126 | { |
1510 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2127 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1511 | |
2128 | |
1512 | if (w->pending) |
2129 | if (w->pending) |
1513 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2130 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1514 | } |
2131 | } |
1515 | |
2132 | |
1516 | static void noinline |
2133 | static void noinline ecb_cold |
1517 | verify_heap (EV_P_ ANHE *heap, int N) |
2134 | verify_heap (EV_P_ ANHE *heap, int N) |
1518 | { |
2135 | { |
1519 | int i; |
2136 | int i; |
1520 | |
2137 | |
1521 | for (i = HEAP0; i < N + HEAP0; ++i) |
2138 | for (i = HEAP0; i < N + HEAP0; ++i) |
1522 | { |
2139 | { |
1523 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
2140 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1524 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
2141 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1525 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
2142 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1526 | |
2143 | |
1527 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2144 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1528 | } |
2145 | } |
1529 | } |
2146 | } |
1530 | |
2147 | |
1531 | static void noinline |
2148 | static void noinline ecb_cold |
1532 | array_verify (EV_P_ W *ws, int cnt) |
2149 | array_verify (EV_P_ W *ws, int cnt) |
1533 | { |
2150 | { |
1534 | while (cnt--) |
2151 | while (cnt--) |
1535 | { |
2152 | { |
1536 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2153 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1537 | verify_watcher (EV_A_ ws [cnt]); |
2154 | verify_watcher (EV_A_ ws [cnt]); |
1538 | } |
2155 | } |
1539 | } |
2156 | } |
1540 | #endif |
2157 | #endif |
1541 | |
2158 | |
1542 | void |
2159 | #if EV_FEATURE_API |
|
|
2160 | void ecb_cold |
1543 | ev_loop_verify (EV_P) |
2161 | ev_verify (EV_P) |
1544 | { |
2162 | { |
1545 | #if EV_VERIFY |
2163 | #if EV_VERIFY |
1546 | int i; |
2164 | int i; |
1547 | WL w; |
2165 | WL w; |
1548 | |
2166 | |
1549 | assert (activecnt >= -1); |
2167 | assert (activecnt >= -1); |
1550 | |
2168 | |
1551 | assert (fdchangemax >= fdchangecnt); |
2169 | assert (fdchangemax >= fdchangecnt); |
1552 | for (i = 0; i < fdchangecnt; ++i) |
2170 | for (i = 0; i < fdchangecnt; ++i) |
1553 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
2171 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1554 | |
2172 | |
1555 | assert (anfdmax >= 0); |
2173 | assert (anfdmax >= 0); |
1556 | for (i = 0; i < anfdmax; ++i) |
2174 | for (i = 0; i < anfdmax; ++i) |
1557 | for (w = anfds [i].head; w; w = w->next) |
2175 | for (w = anfds [i].head; w; w = w->next) |
1558 | { |
2176 | { |
1559 | verify_watcher (EV_A_ (W)w); |
2177 | verify_watcher (EV_A_ (W)w); |
1560 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
2178 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1561 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2179 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1562 | } |
2180 | } |
1563 | |
2181 | |
1564 | assert (timermax >= timercnt); |
2182 | assert (timermax >= timercnt); |
1565 | verify_heap (EV_A_ timers, timercnt); |
2183 | verify_heap (EV_A_ timers, timercnt); |
1566 | |
2184 | |
… | |
… | |
1582 | #if EV_FORK_ENABLE |
2200 | #if EV_FORK_ENABLE |
1583 | assert (forkmax >= forkcnt); |
2201 | assert (forkmax >= forkcnt); |
1584 | array_verify (EV_A_ (W *)forks, forkcnt); |
2202 | array_verify (EV_A_ (W *)forks, forkcnt); |
1585 | #endif |
2203 | #endif |
1586 | |
2204 | |
|
|
2205 | #if EV_CLEANUP_ENABLE |
|
|
2206 | assert (cleanupmax >= cleanupcnt); |
|
|
2207 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2208 | #endif |
|
|
2209 | |
1587 | #if EV_ASYNC_ENABLE |
2210 | #if EV_ASYNC_ENABLE |
1588 | assert (asyncmax >= asynccnt); |
2211 | assert (asyncmax >= asynccnt); |
1589 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2212 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1590 | #endif |
2213 | #endif |
1591 | |
2214 | |
|
|
2215 | #if EV_PREPARE_ENABLE |
1592 | assert (preparemax >= preparecnt); |
2216 | assert (preparemax >= preparecnt); |
1593 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2217 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2218 | #endif |
1594 | |
2219 | |
|
|
2220 | #if EV_CHECK_ENABLE |
1595 | assert (checkmax >= checkcnt); |
2221 | assert (checkmax >= checkcnt); |
1596 | array_verify (EV_A_ (W *)checks, checkcnt); |
2222 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2223 | #endif |
1597 | |
2224 | |
1598 | # if 0 |
2225 | # if 0 |
|
|
2226 | #if EV_CHILD_ENABLE |
1599 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2227 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1600 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2228 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2229 | #endif |
1601 | # endif |
2230 | # endif |
1602 | #endif |
2231 | #endif |
1603 | } |
2232 | } |
1604 | |
2233 | #endif |
1605 | #endif /* multiplicity */ |
|
|
1606 | |
2234 | |
1607 | #if EV_MULTIPLICITY |
2235 | #if EV_MULTIPLICITY |
1608 | struct ev_loop * |
2236 | struct ev_loop * ecb_cold |
1609 | ev_default_loop_init (unsigned int flags) |
|
|
1610 | #else |
2237 | #else |
1611 | int |
2238 | int |
|
|
2239 | #endif |
1612 | ev_default_loop (unsigned int flags) |
2240 | ev_default_loop (unsigned int flags) |
1613 | #endif |
|
|
1614 | { |
2241 | { |
1615 | if (!ev_default_loop_ptr) |
2242 | if (!ev_default_loop_ptr) |
1616 | { |
2243 | { |
1617 | #if EV_MULTIPLICITY |
2244 | #if EV_MULTIPLICITY |
1618 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2245 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1619 | #else |
2246 | #else |
1620 | ev_default_loop_ptr = 1; |
2247 | ev_default_loop_ptr = 1; |
1621 | #endif |
2248 | #endif |
1622 | |
2249 | |
1623 | loop_init (EV_A_ flags); |
2250 | loop_init (EV_A_ flags); |
1624 | |
2251 | |
1625 | if (ev_backend (EV_A)) |
2252 | if (ev_backend (EV_A)) |
1626 | { |
2253 | { |
1627 | #ifndef _WIN32 |
2254 | #if EV_CHILD_ENABLE |
1628 | ev_signal_init (&childev, childcb, SIGCHLD); |
2255 | ev_signal_init (&childev, childcb, SIGCHLD); |
1629 | ev_set_priority (&childev, EV_MAXPRI); |
2256 | ev_set_priority (&childev, EV_MAXPRI); |
1630 | ev_signal_start (EV_A_ &childev); |
2257 | ev_signal_start (EV_A_ &childev); |
1631 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2258 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1632 | #endif |
2259 | #endif |
… | |
… | |
1637 | |
2264 | |
1638 | return ev_default_loop_ptr; |
2265 | return ev_default_loop_ptr; |
1639 | } |
2266 | } |
1640 | |
2267 | |
1641 | void |
2268 | void |
1642 | ev_default_destroy (void) |
2269 | ev_loop_fork (EV_P) |
1643 | { |
2270 | { |
1644 | #if EV_MULTIPLICITY |
|
|
1645 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1646 | #endif |
|
|
1647 | |
|
|
1648 | ev_default_loop_ptr = 0; |
|
|
1649 | |
|
|
1650 | #ifndef _WIN32 |
|
|
1651 | ev_ref (EV_A); /* child watcher */ |
|
|
1652 | ev_signal_stop (EV_A_ &childev); |
|
|
1653 | #endif |
|
|
1654 | |
|
|
1655 | loop_destroy (EV_A); |
|
|
1656 | } |
|
|
1657 | |
|
|
1658 | void |
|
|
1659 | ev_default_fork (void) |
|
|
1660 | { |
|
|
1661 | #if EV_MULTIPLICITY |
|
|
1662 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1663 | #endif |
|
|
1664 | |
|
|
1665 | postfork = 1; /* must be in line with ev_loop_fork */ |
2271 | postfork = 1; /* must be in line with ev_default_fork */ |
1666 | } |
2272 | } |
1667 | |
2273 | |
1668 | /*****************************************************************************/ |
2274 | /*****************************************************************************/ |
1669 | |
2275 | |
1670 | void |
2276 | void |
1671 | ev_invoke (EV_P_ void *w, int revents) |
2277 | ev_invoke (EV_P_ void *w, int revents) |
1672 | { |
2278 | { |
1673 | EV_CB_INVOKE ((W)w, revents); |
2279 | EV_CB_INVOKE ((W)w, revents); |
1674 | } |
2280 | } |
1675 | |
2281 | |
1676 | void inline_speed |
2282 | unsigned int |
1677 | call_pending (EV_P) |
2283 | ev_pending_count (EV_P) |
|
|
2284 | { |
|
|
2285 | int pri; |
|
|
2286 | unsigned int count = 0; |
|
|
2287 | |
|
|
2288 | for (pri = NUMPRI; pri--; ) |
|
|
2289 | count += pendingcnt [pri]; |
|
|
2290 | |
|
|
2291 | return count; |
|
|
2292 | } |
|
|
2293 | |
|
|
2294 | void noinline |
|
|
2295 | ev_invoke_pending (EV_P) |
1678 | { |
2296 | { |
1679 | int pri; |
2297 | int pri; |
1680 | |
2298 | |
1681 | for (pri = NUMPRI; pri--; ) |
2299 | for (pri = NUMPRI; pri--; ) |
1682 | while (pendingcnt [pri]) |
2300 | while (pendingcnt [pri]) |
1683 | { |
2301 | { |
1684 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2302 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1685 | |
2303 | |
1686 | if (expect_true (p->w)) |
|
|
1687 | { |
|
|
1688 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1689 | |
|
|
1690 | p->w->pending = 0; |
2304 | p->w->pending = 0; |
1691 | EV_CB_INVOKE (p->w, p->events); |
2305 | EV_CB_INVOKE (p->w, p->events); |
1692 | EV_FREQUENT_CHECK; |
2306 | EV_FREQUENT_CHECK; |
1693 | } |
|
|
1694 | } |
2307 | } |
1695 | } |
2308 | } |
1696 | |
2309 | |
1697 | #if EV_IDLE_ENABLE |
2310 | #if EV_IDLE_ENABLE |
1698 | void inline_size |
2311 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2312 | /* only when higher priorities are idle" logic */ |
|
|
2313 | inline_size void |
1699 | idle_reify (EV_P) |
2314 | idle_reify (EV_P) |
1700 | { |
2315 | { |
1701 | if (expect_false (idleall)) |
2316 | if (expect_false (idleall)) |
1702 | { |
2317 | { |
1703 | int pri; |
2318 | int pri; |
… | |
… | |
1715 | } |
2330 | } |
1716 | } |
2331 | } |
1717 | } |
2332 | } |
1718 | #endif |
2333 | #endif |
1719 | |
2334 | |
1720 | void inline_size |
2335 | /* make timers pending */ |
|
|
2336 | inline_size void |
1721 | timers_reify (EV_P) |
2337 | timers_reify (EV_P) |
1722 | { |
2338 | { |
1723 | EV_FREQUENT_CHECK; |
2339 | EV_FREQUENT_CHECK; |
1724 | |
2340 | |
1725 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2341 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1726 | { |
2342 | { |
1727 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2343 | do |
1728 | |
|
|
1729 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1730 | |
|
|
1731 | /* first reschedule or stop timer */ |
|
|
1732 | if (w->repeat) |
|
|
1733 | { |
2344 | { |
|
|
2345 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2346 | |
|
|
2347 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2348 | |
|
|
2349 | /* first reschedule or stop timer */ |
|
|
2350 | if (w->repeat) |
|
|
2351 | { |
1734 | ev_at (w) += w->repeat; |
2352 | ev_at (w) += w->repeat; |
1735 | if (ev_at (w) < mn_now) |
2353 | if (ev_at (w) < mn_now) |
1736 | ev_at (w) = mn_now; |
2354 | ev_at (w) = mn_now; |
1737 | |
2355 | |
1738 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2356 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1739 | |
2357 | |
1740 | ANHE_at_cache (timers [HEAP0]); |
2358 | ANHE_at_cache (timers [HEAP0]); |
1741 | downheap (timers, timercnt, HEAP0); |
2359 | downheap (timers, timercnt, HEAP0); |
|
|
2360 | } |
|
|
2361 | else |
|
|
2362 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2363 | |
|
|
2364 | EV_FREQUENT_CHECK; |
|
|
2365 | feed_reverse (EV_A_ (W)w); |
1742 | } |
2366 | } |
1743 | else |
2367 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1744 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1745 | |
2368 | |
1746 | EV_FREQUENT_CHECK; |
2369 | feed_reverse_done (EV_A_ EV_TIMER); |
1747 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1748 | } |
2370 | } |
1749 | } |
2371 | } |
1750 | |
2372 | |
1751 | #if EV_PERIODIC_ENABLE |
2373 | #if EV_PERIODIC_ENABLE |
1752 | void inline_size |
2374 | |
|
|
2375 | static void noinline |
|
|
2376 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2377 | { |
|
|
2378 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2379 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2380 | |
|
|
2381 | /* the above almost always errs on the low side */ |
|
|
2382 | while (at <= ev_rt_now) |
|
|
2383 | { |
|
|
2384 | ev_tstamp nat = at + w->interval; |
|
|
2385 | |
|
|
2386 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2387 | if (expect_false (nat == at)) |
|
|
2388 | { |
|
|
2389 | at = ev_rt_now; |
|
|
2390 | break; |
|
|
2391 | } |
|
|
2392 | |
|
|
2393 | at = nat; |
|
|
2394 | } |
|
|
2395 | |
|
|
2396 | ev_at (w) = at; |
|
|
2397 | } |
|
|
2398 | |
|
|
2399 | /* make periodics pending */ |
|
|
2400 | inline_size void |
1753 | periodics_reify (EV_P) |
2401 | periodics_reify (EV_P) |
1754 | { |
2402 | { |
1755 | EV_FREQUENT_CHECK; |
2403 | EV_FREQUENT_CHECK; |
1756 | |
2404 | |
1757 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2405 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1758 | { |
2406 | { |
1759 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2407 | int feed_count = 0; |
1760 | |
2408 | |
1761 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2409 | do |
1762 | |
|
|
1763 | /* first reschedule or stop timer */ |
|
|
1764 | if (w->reschedule_cb) |
|
|
1765 | { |
2410 | { |
|
|
2411 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2412 | |
|
|
2413 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2414 | |
|
|
2415 | /* first reschedule or stop timer */ |
|
|
2416 | if (w->reschedule_cb) |
|
|
2417 | { |
1766 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2418 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1767 | |
2419 | |
1768 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2420 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1769 | |
2421 | |
1770 | ANHE_at_cache (periodics [HEAP0]); |
2422 | ANHE_at_cache (periodics [HEAP0]); |
1771 | downheap (periodics, periodiccnt, HEAP0); |
2423 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2424 | } |
|
|
2425 | else if (w->interval) |
|
|
2426 | { |
|
|
2427 | periodic_recalc (EV_A_ w); |
|
|
2428 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2429 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2430 | } |
|
|
2431 | else |
|
|
2432 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2433 | |
|
|
2434 | EV_FREQUENT_CHECK; |
|
|
2435 | feed_reverse (EV_A_ (W)w); |
1772 | } |
2436 | } |
1773 | else if (w->interval) |
2437 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1774 | { |
|
|
1775 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1776 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1777 | /* this might happen because of floating point inexactness */ |
|
|
1778 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1779 | { |
|
|
1780 | ev_at (w) += w->interval; |
|
|
1781 | |
2438 | |
1782 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1783 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1784 | /* has effectively asked to get triggered more often than possible */ |
|
|
1785 | if (ev_at (w) < ev_rt_now) |
|
|
1786 | ev_at (w) = ev_rt_now; |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1790 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1791 | } |
|
|
1792 | else |
|
|
1793 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1794 | |
|
|
1795 | EV_FREQUENT_CHECK; |
|
|
1796 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2439 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1797 | } |
2440 | } |
1798 | } |
2441 | } |
1799 | |
2442 | |
|
|
2443 | /* simply recalculate all periodics */ |
|
|
2444 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1800 | static void noinline |
2445 | static void noinline ecb_cold |
1801 | periodics_reschedule (EV_P) |
2446 | periodics_reschedule (EV_P) |
1802 | { |
2447 | { |
1803 | int i; |
2448 | int i; |
1804 | |
2449 | |
1805 | /* adjust periodics after time jump */ |
2450 | /* adjust periodics after time jump */ |
… | |
… | |
1808 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2453 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1809 | |
2454 | |
1810 | if (w->reschedule_cb) |
2455 | if (w->reschedule_cb) |
1811 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2456 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1812 | else if (w->interval) |
2457 | else if (w->interval) |
1813 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2458 | periodic_recalc (EV_A_ w); |
1814 | |
2459 | |
1815 | ANHE_at_cache (periodics [i]); |
2460 | ANHE_at_cache (periodics [i]); |
1816 | } |
2461 | } |
1817 | |
2462 | |
1818 | reheap (periodics, periodiccnt); |
2463 | reheap (periodics, periodiccnt); |
1819 | } |
2464 | } |
1820 | #endif |
2465 | #endif |
1821 | |
2466 | |
1822 | void inline_speed |
2467 | /* adjust all timers by a given offset */ |
|
|
2468 | static void noinline ecb_cold |
|
|
2469 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2470 | { |
|
|
2471 | int i; |
|
|
2472 | |
|
|
2473 | for (i = 0; i < timercnt; ++i) |
|
|
2474 | { |
|
|
2475 | ANHE *he = timers + i + HEAP0; |
|
|
2476 | ANHE_w (*he)->at += adjust; |
|
|
2477 | ANHE_at_cache (*he); |
|
|
2478 | } |
|
|
2479 | } |
|
|
2480 | |
|
|
2481 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2482 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2483 | inline_speed void |
1823 | time_update (EV_P_ ev_tstamp max_block) |
2484 | time_update (EV_P_ ev_tstamp max_block) |
1824 | { |
2485 | { |
1825 | int i; |
|
|
1826 | |
|
|
1827 | #if EV_USE_MONOTONIC |
2486 | #if EV_USE_MONOTONIC |
1828 | if (expect_true (have_monotonic)) |
2487 | if (expect_true (have_monotonic)) |
1829 | { |
2488 | { |
|
|
2489 | int i; |
1830 | ev_tstamp odiff = rtmn_diff; |
2490 | ev_tstamp odiff = rtmn_diff; |
1831 | |
2491 | |
1832 | mn_now = get_clock (); |
2492 | mn_now = get_clock (); |
1833 | |
2493 | |
1834 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2494 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1850 | * doesn't hurt either as we only do this on time-jumps or |
2510 | * doesn't hurt either as we only do this on time-jumps or |
1851 | * in the unlikely event of having been preempted here. |
2511 | * in the unlikely event of having been preempted here. |
1852 | */ |
2512 | */ |
1853 | for (i = 4; --i; ) |
2513 | for (i = 4; --i; ) |
1854 | { |
2514 | { |
|
|
2515 | ev_tstamp diff; |
1855 | rtmn_diff = ev_rt_now - mn_now; |
2516 | rtmn_diff = ev_rt_now - mn_now; |
1856 | |
2517 | |
|
|
2518 | diff = odiff - rtmn_diff; |
|
|
2519 | |
1857 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2520 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1858 | return; /* all is well */ |
2521 | return; /* all is well */ |
1859 | |
2522 | |
1860 | ev_rt_now = ev_time (); |
2523 | ev_rt_now = ev_time (); |
1861 | mn_now = get_clock (); |
2524 | mn_now = get_clock (); |
1862 | now_floor = mn_now; |
2525 | now_floor = mn_now; |
1863 | } |
2526 | } |
1864 | |
2527 | |
|
|
2528 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2529 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1865 | # if EV_PERIODIC_ENABLE |
2530 | # if EV_PERIODIC_ENABLE |
1866 | periodics_reschedule (EV_A); |
2531 | periodics_reschedule (EV_A); |
1867 | # endif |
2532 | # endif |
1868 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1869 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1870 | } |
2533 | } |
1871 | else |
2534 | else |
1872 | #endif |
2535 | #endif |
1873 | { |
2536 | { |
1874 | ev_rt_now = ev_time (); |
2537 | ev_rt_now = ev_time (); |
1875 | |
2538 | |
1876 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2539 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1877 | { |
2540 | { |
|
|
2541 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2542 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1878 | #if EV_PERIODIC_ENABLE |
2543 | #if EV_PERIODIC_ENABLE |
1879 | periodics_reschedule (EV_A); |
2544 | periodics_reschedule (EV_A); |
1880 | #endif |
2545 | #endif |
1881 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1882 | for (i = 0; i < timercnt; ++i) |
|
|
1883 | { |
|
|
1884 | ANHE *he = timers + i + HEAP0; |
|
|
1885 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1886 | ANHE_at_cache (*he); |
|
|
1887 | } |
|
|
1888 | } |
2546 | } |
1889 | |
2547 | |
1890 | mn_now = ev_rt_now; |
2548 | mn_now = ev_rt_now; |
1891 | } |
2549 | } |
1892 | } |
2550 | } |
1893 | |
2551 | |
1894 | void |
2552 | void |
1895 | ev_ref (EV_P) |
|
|
1896 | { |
|
|
1897 | ++activecnt; |
|
|
1898 | } |
|
|
1899 | |
|
|
1900 | void |
|
|
1901 | ev_unref (EV_P) |
|
|
1902 | { |
|
|
1903 | --activecnt; |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | void |
|
|
1907 | ev_now_update (EV_P) |
|
|
1908 | { |
|
|
1909 | time_update (EV_A_ 1e100); |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | static int loop_done; |
|
|
1913 | |
|
|
1914 | void |
|
|
1915 | ev_loop (EV_P_ int flags) |
2553 | ev_run (EV_P_ int flags) |
1916 | { |
2554 | { |
|
|
2555 | #if EV_FEATURE_API |
|
|
2556 | ++loop_depth; |
|
|
2557 | #endif |
|
|
2558 | |
|
|
2559 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2560 | |
1917 | loop_done = EVUNLOOP_CANCEL; |
2561 | loop_done = EVBREAK_CANCEL; |
1918 | |
2562 | |
1919 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2563 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1920 | |
2564 | |
1921 | do |
2565 | do |
1922 | { |
2566 | { |
1923 | #if EV_VERIFY >= 2 |
2567 | #if EV_VERIFY >= 2 |
1924 | ev_loop_verify (EV_A); |
2568 | ev_verify (EV_A); |
1925 | #endif |
2569 | #endif |
1926 | |
2570 | |
1927 | #ifndef _WIN32 |
2571 | #ifndef _WIN32 |
1928 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2572 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1929 | if (expect_false (getpid () != curpid)) |
2573 | if (expect_false (getpid () != curpid)) |
… | |
… | |
1937 | /* we might have forked, so queue fork handlers */ |
2581 | /* we might have forked, so queue fork handlers */ |
1938 | if (expect_false (postfork)) |
2582 | if (expect_false (postfork)) |
1939 | if (forkcnt) |
2583 | if (forkcnt) |
1940 | { |
2584 | { |
1941 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2585 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1942 | call_pending (EV_A); |
2586 | EV_INVOKE_PENDING; |
1943 | } |
2587 | } |
1944 | #endif |
2588 | #endif |
1945 | |
2589 | |
|
|
2590 | #if EV_PREPARE_ENABLE |
1946 | /* queue prepare watchers (and execute them) */ |
2591 | /* queue prepare watchers (and execute them) */ |
1947 | if (expect_false (preparecnt)) |
2592 | if (expect_false (preparecnt)) |
1948 | { |
2593 | { |
1949 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2594 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1950 | call_pending (EV_A); |
2595 | EV_INVOKE_PENDING; |
1951 | } |
2596 | } |
|
|
2597 | #endif |
1952 | |
2598 | |
1953 | if (expect_false (!activecnt)) |
2599 | if (expect_false (loop_done)) |
1954 | break; |
2600 | break; |
1955 | |
2601 | |
1956 | /* we might have forked, so reify kernel state if necessary */ |
2602 | /* we might have forked, so reify kernel state if necessary */ |
1957 | if (expect_false (postfork)) |
2603 | if (expect_false (postfork)) |
1958 | loop_fork (EV_A); |
2604 | loop_fork (EV_A); |
… | |
… | |
1963 | /* calculate blocking time */ |
2609 | /* calculate blocking time */ |
1964 | { |
2610 | { |
1965 | ev_tstamp waittime = 0.; |
2611 | ev_tstamp waittime = 0.; |
1966 | ev_tstamp sleeptime = 0.; |
2612 | ev_tstamp sleeptime = 0.; |
1967 | |
2613 | |
|
|
2614 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2615 | ev_tstamp prev_mn_now = mn_now; |
|
|
2616 | |
|
|
2617 | /* update time to cancel out callback processing overhead */ |
|
|
2618 | time_update (EV_A_ 1e100); |
|
|
2619 | |
|
|
2620 | /* from now on, we want a pipe-wake-up */ |
|
|
2621 | pipe_write_wanted = 1; |
|
|
2622 | |
|
|
2623 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2624 | |
1968 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2625 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1969 | { |
2626 | { |
1970 | /* update time to cancel out callback processing overhead */ |
|
|
1971 | time_update (EV_A_ 1e100); |
|
|
1972 | |
|
|
1973 | waittime = MAX_BLOCKTIME; |
2627 | waittime = MAX_BLOCKTIME; |
1974 | |
2628 | |
1975 | if (timercnt) |
2629 | if (timercnt) |
1976 | { |
2630 | { |
1977 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2631 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1978 | if (waittime > to) waittime = to; |
2632 | if (waittime > to) waittime = to; |
1979 | } |
2633 | } |
1980 | |
2634 | |
1981 | #if EV_PERIODIC_ENABLE |
2635 | #if EV_PERIODIC_ENABLE |
1982 | if (periodiccnt) |
2636 | if (periodiccnt) |
1983 | { |
2637 | { |
1984 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2638 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1985 | if (waittime > to) waittime = to; |
2639 | if (waittime > to) waittime = to; |
1986 | } |
2640 | } |
1987 | #endif |
2641 | #endif |
1988 | |
2642 | |
|
|
2643 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1989 | if (expect_false (waittime < timeout_blocktime)) |
2644 | if (expect_false (waittime < timeout_blocktime)) |
1990 | waittime = timeout_blocktime; |
2645 | waittime = timeout_blocktime; |
1991 | |
2646 | |
1992 | sleeptime = waittime - backend_fudge; |
2647 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
2648 | /* to pass a minimum nonzero value to the backend */ |
|
|
2649 | if (expect_false (waittime < backend_mintime)) |
|
|
2650 | waittime = backend_mintime; |
1993 | |
2651 | |
|
|
2652 | /* extra check because io_blocktime is commonly 0 */ |
1994 | if (expect_true (sleeptime > io_blocktime)) |
2653 | if (expect_false (io_blocktime)) |
1995 | sleeptime = io_blocktime; |
|
|
1996 | |
|
|
1997 | if (sleeptime) |
|
|
1998 | { |
2654 | { |
|
|
2655 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2656 | |
|
|
2657 | if (sleeptime > waittime - backend_mintime) |
|
|
2658 | sleeptime = waittime - backend_mintime; |
|
|
2659 | |
|
|
2660 | if (expect_true (sleeptime > 0.)) |
|
|
2661 | { |
1999 | ev_sleep (sleeptime); |
2662 | ev_sleep (sleeptime); |
2000 | waittime -= sleeptime; |
2663 | waittime -= sleeptime; |
|
|
2664 | } |
2001 | } |
2665 | } |
2002 | } |
2666 | } |
2003 | |
2667 | |
|
|
2668 | #if EV_FEATURE_API |
2004 | ++loop_count; |
2669 | ++loop_count; |
|
|
2670 | #endif |
|
|
2671 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2005 | backend_poll (EV_A_ waittime); |
2672 | backend_poll (EV_A_ waittime); |
|
|
2673 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2674 | |
|
|
2675 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
|
|
2676 | |
|
|
2677 | if (pipe_write_skipped) |
|
|
2678 | { |
|
|
2679 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
2680 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
2681 | } |
|
|
2682 | |
2006 | |
2683 | |
2007 | /* update ev_rt_now, do magic */ |
2684 | /* update ev_rt_now, do magic */ |
2008 | time_update (EV_A_ waittime + sleeptime); |
2685 | time_update (EV_A_ waittime + sleeptime); |
2009 | } |
2686 | } |
2010 | |
2687 | |
… | |
… | |
2017 | #if EV_IDLE_ENABLE |
2694 | #if EV_IDLE_ENABLE |
2018 | /* queue idle watchers unless other events are pending */ |
2695 | /* queue idle watchers unless other events are pending */ |
2019 | idle_reify (EV_A); |
2696 | idle_reify (EV_A); |
2020 | #endif |
2697 | #endif |
2021 | |
2698 | |
|
|
2699 | #if EV_CHECK_ENABLE |
2022 | /* queue check watchers, to be executed first */ |
2700 | /* queue check watchers, to be executed first */ |
2023 | if (expect_false (checkcnt)) |
2701 | if (expect_false (checkcnt)) |
2024 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2702 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2703 | #endif |
2025 | |
2704 | |
2026 | call_pending (EV_A); |
2705 | EV_INVOKE_PENDING; |
2027 | } |
2706 | } |
2028 | while (expect_true ( |
2707 | while (expect_true ( |
2029 | activecnt |
2708 | activecnt |
2030 | && !loop_done |
2709 | && !loop_done |
2031 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2710 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2032 | )); |
2711 | )); |
2033 | |
2712 | |
2034 | if (loop_done == EVUNLOOP_ONE) |
2713 | if (loop_done == EVBREAK_ONE) |
2035 | loop_done = EVUNLOOP_CANCEL; |
2714 | loop_done = EVBREAK_CANCEL; |
|
|
2715 | |
|
|
2716 | #if EV_FEATURE_API |
|
|
2717 | --loop_depth; |
|
|
2718 | #endif |
2036 | } |
2719 | } |
2037 | |
2720 | |
2038 | void |
2721 | void |
2039 | ev_unloop (EV_P_ int how) |
2722 | ev_break (EV_P_ int how) |
2040 | { |
2723 | { |
2041 | loop_done = how; |
2724 | loop_done = how; |
2042 | } |
2725 | } |
2043 | |
2726 | |
|
|
2727 | void |
|
|
2728 | ev_ref (EV_P) |
|
|
2729 | { |
|
|
2730 | ++activecnt; |
|
|
2731 | } |
|
|
2732 | |
|
|
2733 | void |
|
|
2734 | ev_unref (EV_P) |
|
|
2735 | { |
|
|
2736 | --activecnt; |
|
|
2737 | } |
|
|
2738 | |
|
|
2739 | void |
|
|
2740 | ev_now_update (EV_P) |
|
|
2741 | { |
|
|
2742 | time_update (EV_A_ 1e100); |
|
|
2743 | } |
|
|
2744 | |
|
|
2745 | void |
|
|
2746 | ev_suspend (EV_P) |
|
|
2747 | { |
|
|
2748 | ev_now_update (EV_A); |
|
|
2749 | } |
|
|
2750 | |
|
|
2751 | void |
|
|
2752 | ev_resume (EV_P) |
|
|
2753 | { |
|
|
2754 | ev_tstamp mn_prev = mn_now; |
|
|
2755 | |
|
|
2756 | ev_now_update (EV_A); |
|
|
2757 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2758 | #if EV_PERIODIC_ENABLE |
|
|
2759 | /* TODO: really do this? */ |
|
|
2760 | periodics_reschedule (EV_A); |
|
|
2761 | #endif |
|
|
2762 | } |
|
|
2763 | |
2044 | /*****************************************************************************/ |
2764 | /*****************************************************************************/ |
|
|
2765 | /* singly-linked list management, used when the expected list length is short */ |
2045 | |
2766 | |
2046 | void inline_size |
2767 | inline_size void |
2047 | wlist_add (WL *head, WL elem) |
2768 | wlist_add (WL *head, WL elem) |
2048 | { |
2769 | { |
2049 | elem->next = *head; |
2770 | elem->next = *head; |
2050 | *head = elem; |
2771 | *head = elem; |
2051 | } |
2772 | } |
2052 | |
2773 | |
2053 | void inline_size |
2774 | inline_size void |
2054 | wlist_del (WL *head, WL elem) |
2775 | wlist_del (WL *head, WL elem) |
2055 | { |
2776 | { |
2056 | while (*head) |
2777 | while (*head) |
2057 | { |
2778 | { |
2058 | if (*head == elem) |
2779 | if (expect_true (*head == elem)) |
2059 | { |
2780 | { |
2060 | *head = elem->next; |
2781 | *head = elem->next; |
2061 | return; |
2782 | break; |
2062 | } |
2783 | } |
2063 | |
2784 | |
2064 | head = &(*head)->next; |
2785 | head = &(*head)->next; |
2065 | } |
2786 | } |
2066 | } |
2787 | } |
2067 | |
2788 | |
2068 | void inline_speed |
2789 | /* internal, faster, version of ev_clear_pending */ |
|
|
2790 | inline_speed void |
2069 | clear_pending (EV_P_ W w) |
2791 | clear_pending (EV_P_ W w) |
2070 | { |
2792 | { |
2071 | if (w->pending) |
2793 | if (w->pending) |
2072 | { |
2794 | { |
2073 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2795 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2074 | w->pending = 0; |
2796 | w->pending = 0; |
2075 | } |
2797 | } |
2076 | } |
2798 | } |
2077 | |
2799 | |
2078 | int |
2800 | int |
… | |
… | |
2082 | int pending = w_->pending; |
2804 | int pending = w_->pending; |
2083 | |
2805 | |
2084 | if (expect_true (pending)) |
2806 | if (expect_true (pending)) |
2085 | { |
2807 | { |
2086 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2808 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2809 | p->w = (W)&pending_w; |
2087 | w_->pending = 0; |
2810 | w_->pending = 0; |
2088 | p->w = 0; |
|
|
2089 | return p->events; |
2811 | return p->events; |
2090 | } |
2812 | } |
2091 | else |
2813 | else |
2092 | return 0; |
2814 | return 0; |
2093 | } |
2815 | } |
2094 | |
2816 | |
2095 | void inline_size |
2817 | inline_size void |
2096 | pri_adjust (EV_P_ W w) |
2818 | pri_adjust (EV_P_ W w) |
2097 | { |
2819 | { |
2098 | int pri = w->priority; |
2820 | int pri = ev_priority (w); |
2099 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2821 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2100 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2822 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2101 | w->priority = pri; |
2823 | ev_set_priority (w, pri); |
2102 | } |
2824 | } |
2103 | |
2825 | |
2104 | void inline_speed |
2826 | inline_speed void |
2105 | ev_start (EV_P_ W w, int active) |
2827 | ev_start (EV_P_ W w, int active) |
2106 | { |
2828 | { |
2107 | pri_adjust (EV_A_ w); |
2829 | pri_adjust (EV_A_ w); |
2108 | w->active = active; |
2830 | w->active = active; |
2109 | ev_ref (EV_A); |
2831 | ev_ref (EV_A); |
2110 | } |
2832 | } |
2111 | |
2833 | |
2112 | void inline_size |
2834 | inline_size void |
2113 | ev_stop (EV_P_ W w) |
2835 | ev_stop (EV_P_ W w) |
2114 | { |
2836 | { |
2115 | ev_unref (EV_A); |
2837 | ev_unref (EV_A); |
2116 | w->active = 0; |
2838 | w->active = 0; |
2117 | } |
2839 | } |
… | |
… | |
2124 | int fd = w->fd; |
2846 | int fd = w->fd; |
2125 | |
2847 | |
2126 | if (expect_false (ev_is_active (w))) |
2848 | if (expect_false (ev_is_active (w))) |
2127 | return; |
2849 | return; |
2128 | |
2850 | |
2129 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2851 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2130 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2852 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2131 | |
2853 | |
2132 | EV_FREQUENT_CHECK; |
2854 | EV_FREQUENT_CHECK; |
2133 | |
2855 | |
2134 | ev_start (EV_A_ (W)w, 1); |
2856 | ev_start (EV_A_ (W)w, 1); |
2135 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2857 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2136 | wlist_add (&anfds[fd].head, (WL)w); |
2858 | wlist_add (&anfds[fd].head, (WL)w); |
2137 | |
2859 | |
2138 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2860 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2139 | w->events &= ~EV_IOFDSET; |
2861 | w->events &= ~EV__IOFDSET; |
2140 | |
2862 | |
2141 | EV_FREQUENT_CHECK; |
2863 | EV_FREQUENT_CHECK; |
2142 | } |
2864 | } |
2143 | |
2865 | |
2144 | void noinline |
2866 | void noinline |
… | |
… | |
2146 | { |
2868 | { |
2147 | clear_pending (EV_A_ (W)w); |
2869 | clear_pending (EV_A_ (W)w); |
2148 | if (expect_false (!ev_is_active (w))) |
2870 | if (expect_false (!ev_is_active (w))) |
2149 | return; |
2871 | return; |
2150 | |
2872 | |
2151 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2873 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2152 | |
2874 | |
2153 | EV_FREQUENT_CHECK; |
2875 | EV_FREQUENT_CHECK; |
2154 | |
2876 | |
2155 | wlist_del (&anfds[w->fd].head, (WL)w); |
2877 | wlist_del (&anfds[w->fd].head, (WL)w); |
2156 | ev_stop (EV_A_ (W)w); |
2878 | ev_stop (EV_A_ (W)w); |
2157 | |
2879 | |
2158 | fd_change (EV_A_ w->fd, 1); |
2880 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2159 | |
2881 | |
2160 | EV_FREQUENT_CHECK; |
2882 | EV_FREQUENT_CHECK; |
2161 | } |
2883 | } |
2162 | |
2884 | |
2163 | void noinline |
2885 | void noinline |
… | |
… | |
2166 | if (expect_false (ev_is_active (w))) |
2888 | if (expect_false (ev_is_active (w))) |
2167 | return; |
2889 | return; |
2168 | |
2890 | |
2169 | ev_at (w) += mn_now; |
2891 | ev_at (w) += mn_now; |
2170 | |
2892 | |
2171 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2893 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2172 | |
2894 | |
2173 | EV_FREQUENT_CHECK; |
2895 | EV_FREQUENT_CHECK; |
2174 | |
2896 | |
2175 | ++timercnt; |
2897 | ++timercnt; |
2176 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2898 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2179 | ANHE_at_cache (timers [ev_active (w)]); |
2901 | ANHE_at_cache (timers [ev_active (w)]); |
2180 | upheap (timers, ev_active (w)); |
2902 | upheap (timers, ev_active (w)); |
2181 | |
2903 | |
2182 | EV_FREQUENT_CHECK; |
2904 | EV_FREQUENT_CHECK; |
2183 | |
2905 | |
2184 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2906 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2185 | } |
2907 | } |
2186 | |
2908 | |
2187 | void noinline |
2909 | void noinline |
2188 | ev_timer_stop (EV_P_ ev_timer *w) |
2910 | ev_timer_stop (EV_P_ ev_timer *w) |
2189 | { |
2911 | { |
… | |
… | |
2194 | EV_FREQUENT_CHECK; |
2916 | EV_FREQUENT_CHECK; |
2195 | |
2917 | |
2196 | { |
2918 | { |
2197 | int active = ev_active (w); |
2919 | int active = ev_active (w); |
2198 | |
2920 | |
2199 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2921 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2200 | |
2922 | |
2201 | --timercnt; |
2923 | --timercnt; |
2202 | |
2924 | |
2203 | if (expect_true (active < timercnt + HEAP0)) |
2925 | if (expect_true (active < timercnt + HEAP0)) |
2204 | { |
2926 | { |
2205 | timers [active] = timers [timercnt + HEAP0]; |
2927 | timers [active] = timers [timercnt + HEAP0]; |
2206 | adjustheap (timers, timercnt, active); |
2928 | adjustheap (timers, timercnt, active); |
2207 | } |
2929 | } |
2208 | } |
2930 | } |
2209 | |
2931 | |
2210 | EV_FREQUENT_CHECK; |
|
|
2211 | |
|
|
2212 | ev_at (w) -= mn_now; |
2932 | ev_at (w) -= mn_now; |
2213 | |
2933 | |
2214 | ev_stop (EV_A_ (W)w); |
2934 | ev_stop (EV_A_ (W)w); |
|
|
2935 | |
|
|
2936 | EV_FREQUENT_CHECK; |
2215 | } |
2937 | } |
2216 | |
2938 | |
2217 | void noinline |
2939 | void noinline |
2218 | ev_timer_again (EV_P_ ev_timer *w) |
2940 | ev_timer_again (EV_P_ ev_timer *w) |
2219 | { |
2941 | { |
… | |
… | |
2237 | } |
2959 | } |
2238 | |
2960 | |
2239 | EV_FREQUENT_CHECK; |
2961 | EV_FREQUENT_CHECK; |
2240 | } |
2962 | } |
2241 | |
2963 | |
|
|
2964 | ev_tstamp |
|
|
2965 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2966 | { |
|
|
2967 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2968 | } |
|
|
2969 | |
2242 | #if EV_PERIODIC_ENABLE |
2970 | #if EV_PERIODIC_ENABLE |
2243 | void noinline |
2971 | void noinline |
2244 | ev_periodic_start (EV_P_ ev_periodic *w) |
2972 | ev_periodic_start (EV_P_ ev_periodic *w) |
2245 | { |
2973 | { |
2246 | if (expect_false (ev_is_active (w))) |
2974 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2248 | |
2976 | |
2249 | if (w->reschedule_cb) |
2977 | if (w->reschedule_cb) |
2250 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2978 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2251 | else if (w->interval) |
2979 | else if (w->interval) |
2252 | { |
2980 | { |
2253 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2981 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2254 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2982 | periodic_recalc (EV_A_ w); |
2255 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2256 | } |
2983 | } |
2257 | else |
2984 | else |
2258 | ev_at (w) = w->offset; |
2985 | ev_at (w) = w->offset; |
2259 | |
2986 | |
2260 | EV_FREQUENT_CHECK; |
2987 | EV_FREQUENT_CHECK; |
… | |
… | |
2266 | ANHE_at_cache (periodics [ev_active (w)]); |
2993 | ANHE_at_cache (periodics [ev_active (w)]); |
2267 | upheap (periodics, ev_active (w)); |
2994 | upheap (periodics, ev_active (w)); |
2268 | |
2995 | |
2269 | EV_FREQUENT_CHECK; |
2996 | EV_FREQUENT_CHECK; |
2270 | |
2997 | |
2271 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2998 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2272 | } |
2999 | } |
2273 | |
3000 | |
2274 | void noinline |
3001 | void noinline |
2275 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3002 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2276 | { |
3003 | { |
… | |
… | |
2281 | EV_FREQUENT_CHECK; |
3008 | EV_FREQUENT_CHECK; |
2282 | |
3009 | |
2283 | { |
3010 | { |
2284 | int active = ev_active (w); |
3011 | int active = ev_active (w); |
2285 | |
3012 | |
2286 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3013 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2287 | |
3014 | |
2288 | --periodiccnt; |
3015 | --periodiccnt; |
2289 | |
3016 | |
2290 | if (expect_true (active < periodiccnt + HEAP0)) |
3017 | if (expect_true (active < periodiccnt + HEAP0)) |
2291 | { |
3018 | { |
2292 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3019 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2293 | adjustheap (periodics, periodiccnt, active); |
3020 | adjustheap (periodics, periodiccnt, active); |
2294 | } |
3021 | } |
2295 | } |
3022 | } |
2296 | |
3023 | |
2297 | EV_FREQUENT_CHECK; |
|
|
2298 | |
|
|
2299 | ev_stop (EV_A_ (W)w); |
3024 | ev_stop (EV_A_ (W)w); |
|
|
3025 | |
|
|
3026 | EV_FREQUENT_CHECK; |
2300 | } |
3027 | } |
2301 | |
3028 | |
2302 | void noinline |
3029 | void noinline |
2303 | ev_periodic_again (EV_P_ ev_periodic *w) |
3030 | ev_periodic_again (EV_P_ ev_periodic *w) |
2304 | { |
3031 | { |
… | |
… | |
2310 | |
3037 | |
2311 | #ifndef SA_RESTART |
3038 | #ifndef SA_RESTART |
2312 | # define SA_RESTART 0 |
3039 | # define SA_RESTART 0 |
2313 | #endif |
3040 | #endif |
2314 | |
3041 | |
|
|
3042 | #if EV_SIGNAL_ENABLE |
|
|
3043 | |
2315 | void noinline |
3044 | void noinline |
2316 | ev_signal_start (EV_P_ ev_signal *w) |
3045 | ev_signal_start (EV_P_ ev_signal *w) |
2317 | { |
3046 | { |
2318 | #if EV_MULTIPLICITY |
|
|
2319 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2320 | #endif |
|
|
2321 | if (expect_false (ev_is_active (w))) |
3047 | if (expect_false (ev_is_active (w))) |
2322 | return; |
3048 | return; |
2323 | |
3049 | |
2324 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3050 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2325 | |
3051 | |
2326 | evpipe_init (EV_A); |
3052 | #if EV_MULTIPLICITY |
|
|
3053 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3054 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2327 | |
3055 | |
2328 | EV_FREQUENT_CHECK; |
3056 | signals [w->signum - 1].loop = EV_A; |
|
|
3057 | #endif |
2329 | |
3058 | |
|
|
3059 | EV_FREQUENT_CHECK; |
|
|
3060 | |
|
|
3061 | #if EV_USE_SIGNALFD |
|
|
3062 | if (sigfd == -2) |
2330 | { |
3063 | { |
2331 | #ifndef _WIN32 |
3064 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2332 | sigset_t full, prev; |
3065 | if (sigfd < 0 && errno == EINVAL) |
2333 | sigfillset (&full); |
3066 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2334 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2335 | #endif |
|
|
2336 | |
3067 | |
2337 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
3068 | if (sigfd >= 0) |
|
|
3069 | { |
|
|
3070 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2338 | |
3071 | |
2339 | #ifndef _WIN32 |
3072 | sigemptyset (&sigfd_set); |
2340 | sigprocmask (SIG_SETMASK, &prev, 0); |
3073 | |
2341 | #endif |
3074 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3075 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3076 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3077 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3078 | } |
2342 | } |
3079 | } |
|
|
3080 | |
|
|
3081 | if (sigfd >= 0) |
|
|
3082 | { |
|
|
3083 | /* TODO: check .head */ |
|
|
3084 | sigaddset (&sigfd_set, w->signum); |
|
|
3085 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3086 | |
|
|
3087 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3088 | } |
|
|
3089 | #endif |
2343 | |
3090 | |
2344 | ev_start (EV_A_ (W)w, 1); |
3091 | ev_start (EV_A_ (W)w, 1); |
2345 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3092 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2346 | |
3093 | |
2347 | if (!((WL)w)->next) |
3094 | if (!((WL)w)->next) |
|
|
3095 | # if EV_USE_SIGNALFD |
|
|
3096 | if (sigfd < 0) /*TODO*/ |
|
|
3097 | # endif |
2348 | { |
3098 | { |
2349 | #if _WIN32 |
3099 | # ifdef _WIN32 |
|
|
3100 | evpipe_init (EV_A); |
|
|
3101 | |
2350 | signal (w->signum, ev_sighandler); |
3102 | signal (w->signum, ev_sighandler); |
2351 | #else |
3103 | # else |
2352 | struct sigaction sa; |
3104 | struct sigaction sa; |
|
|
3105 | |
|
|
3106 | evpipe_init (EV_A); |
|
|
3107 | |
2353 | sa.sa_handler = ev_sighandler; |
3108 | sa.sa_handler = ev_sighandler; |
2354 | sigfillset (&sa.sa_mask); |
3109 | sigfillset (&sa.sa_mask); |
2355 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3110 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2356 | sigaction (w->signum, &sa, 0); |
3111 | sigaction (w->signum, &sa, 0); |
|
|
3112 | |
|
|
3113 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3114 | { |
|
|
3115 | sigemptyset (&sa.sa_mask); |
|
|
3116 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3117 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3118 | } |
2357 | #endif |
3119 | #endif |
2358 | } |
3120 | } |
2359 | |
3121 | |
2360 | EV_FREQUENT_CHECK; |
3122 | EV_FREQUENT_CHECK; |
2361 | } |
3123 | } |
2362 | |
3124 | |
2363 | void noinline |
3125 | void noinline |
… | |
… | |
2371 | |
3133 | |
2372 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3134 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2373 | ev_stop (EV_A_ (W)w); |
3135 | ev_stop (EV_A_ (W)w); |
2374 | |
3136 | |
2375 | if (!signals [w->signum - 1].head) |
3137 | if (!signals [w->signum - 1].head) |
|
|
3138 | { |
|
|
3139 | #if EV_MULTIPLICITY |
|
|
3140 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3141 | #endif |
|
|
3142 | #if EV_USE_SIGNALFD |
|
|
3143 | if (sigfd >= 0) |
|
|
3144 | { |
|
|
3145 | sigset_t ss; |
|
|
3146 | |
|
|
3147 | sigemptyset (&ss); |
|
|
3148 | sigaddset (&ss, w->signum); |
|
|
3149 | sigdelset (&sigfd_set, w->signum); |
|
|
3150 | |
|
|
3151 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3152 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3153 | } |
|
|
3154 | else |
|
|
3155 | #endif |
2376 | signal (w->signum, SIG_DFL); |
3156 | signal (w->signum, SIG_DFL); |
|
|
3157 | } |
2377 | |
3158 | |
2378 | EV_FREQUENT_CHECK; |
3159 | EV_FREQUENT_CHECK; |
2379 | } |
3160 | } |
|
|
3161 | |
|
|
3162 | #endif |
|
|
3163 | |
|
|
3164 | #if EV_CHILD_ENABLE |
2380 | |
3165 | |
2381 | void |
3166 | void |
2382 | ev_child_start (EV_P_ ev_child *w) |
3167 | ev_child_start (EV_P_ ev_child *w) |
2383 | { |
3168 | { |
2384 | #if EV_MULTIPLICITY |
3169 | #if EV_MULTIPLICITY |
2385 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3170 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2386 | #endif |
3171 | #endif |
2387 | if (expect_false (ev_is_active (w))) |
3172 | if (expect_false (ev_is_active (w))) |
2388 | return; |
3173 | return; |
2389 | |
3174 | |
2390 | EV_FREQUENT_CHECK; |
3175 | EV_FREQUENT_CHECK; |
2391 | |
3176 | |
2392 | ev_start (EV_A_ (W)w, 1); |
3177 | ev_start (EV_A_ (W)w, 1); |
2393 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3178 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2394 | |
3179 | |
2395 | EV_FREQUENT_CHECK; |
3180 | EV_FREQUENT_CHECK; |
2396 | } |
3181 | } |
2397 | |
3182 | |
2398 | void |
3183 | void |
… | |
… | |
2402 | if (expect_false (!ev_is_active (w))) |
3187 | if (expect_false (!ev_is_active (w))) |
2403 | return; |
3188 | return; |
2404 | |
3189 | |
2405 | EV_FREQUENT_CHECK; |
3190 | EV_FREQUENT_CHECK; |
2406 | |
3191 | |
2407 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3192 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2408 | ev_stop (EV_A_ (W)w); |
3193 | ev_stop (EV_A_ (W)w); |
2409 | |
3194 | |
2410 | EV_FREQUENT_CHECK; |
3195 | EV_FREQUENT_CHECK; |
2411 | } |
3196 | } |
|
|
3197 | |
|
|
3198 | #endif |
2412 | |
3199 | |
2413 | #if EV_STAT_ENABLE |
3200 | #if EV_STAT_ENABLE |
2414 | |
3201 | |
2415 | # ifdef _WIN32 |
3202 | # ifdef _WIN32 |
2416 | # undef lstat |
3203 | # undef lstat |
2417 | # define lstat(a,b) _stati64 (a,b) |
3204 | # define lstat(a,b) _stati64 (a,b) |
2418 | # endif |
3205 | # endif |
2419 | |
3206 | |
2420 | #define DEF_STAT_INTERVAL 5.0074891 |
3207 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3208 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2421 | #define MIN_STAT_INTERVAL 0.1074891 |
3209 | #define MIN_STAT_INTERVAL 0.1074891 |
2422 | |
3210 | |
2423 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3211 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2424 | |
3212 | |
2425 | #if EV_USE_INOTIFY |
3213 | #if EV_USE_INOTIFY |
2426 | # define EV_INOTIFY_BUFSIZE 8192 |
3214 | |
|
|
3215 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3216 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2427 | |
3217 | |
2428 | static void noinline |
3218 | static void noinline |
2429 | infy_add (EV_P_ ev_stat *w) |
3219 | infy_add (EV_P_ ev_stat *w) |
2430 | { |
3220 | { |
2431 | 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); |
3221 | 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); |
2432 | |
3222 | |
2433 | if (w->wd < 0) |
3223 | if (w->wd >= 0) |
|
|
3224 | { |
|
|
3225 | struct statfs sfs; |
|
|
3226 | |
|
|
3227 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3228 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3229 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3230 | |
|
|
3231 | if (!fs_2625) |
|
|
3232 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3233 | else if (!statfs (w->path, &sfs) |
|
|
3234 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3235 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3236 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3237 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3238 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3239 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3240 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3241 | else |
|
|
3242 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2434 | { |
3243 | } |
2435 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3244 | else |
|
|
3245 | { |
|
|
3246 | /* can't use inotify, continue to stat */ |
|
|
3247 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2436 | |
3248 | |
2437 | /* monitor some parent directory for speedup hints */ |
3249 | /* if path is not there, monitor some parent directory for speedup hints */ |
2438 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3250 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2439 | /* but an efficiency issue only */ |
3251 | /* but an efficiency issue only */ |
2440 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3252 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2441 | { |
3253 | { |
2442 | char path [4096]; |
3254 | char path [4096]; |
… | |
… | |
2447 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3259 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2448 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3260 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2449 | |
3261 | |
2450 | char *pend = strrchr (path, '/'); |
3262 | char *pend = strrchr (path, '/'); |
2451 | |
3263 | |
2452 | if (!pend) |
3264 | if (!pend || pend == path) |
2453 | break; /* whoops, no '/', complain to your admin */ |
3265 | break; |
2454 | |
3266 | |
2455 | *pend = 0; |
3267 | *pend = 0; |
2456 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3268 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2457 | } |
3269 | } |
2458 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3270 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2459 | } |
3271 | } |
2460 | } |
3272 | } |
2461 | else |
|
|
2462 | todo, on nfs etc., we need to poll every 60s or so |
|
|
2463 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2464 | |
3273 | |
2465 | if (w->wd >= 0) |
3274 | if (w->wd >= 0) |
2466 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3275 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3276 | |
|
|
3277 | /* now re-arm timer, if required */ |
|
|
3278 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3279 | ev_timer_again (EV_A_ &w->timer); |
|
|
3280 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2467 | } |
3281 | } |
2468 | |
3282 | |
2469 | static void noinline |
3283 | static void noinline |
2470 | infy_del (EV_P_ ev_stat *w) |
3284 | infy_del (EV_P_ ev_stat *w) |
2471 | { |
3285 | { |
… | |
… | |
2474 | |
3288 | |
2475 | if (wd < 0) |
3289 | if (wd < 0) |
2476 | return; |
3290 | return; |
2477 | |
3291 | |
2478 | w->wd = -2; |
3292 | w->wd = -2; |
2479 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3293 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2480 | wlist_del (&fs_hash [slot].head, (WL)w); |
3294 | wlist_del (&fs_hash [slot].head, (WL)w); |
2481 | |
3295 | |
2482 | /* remove this watcher, if others are watching it, they will rearm */ |
3296 | /* remove this watcher, if others are watching it, they will rearm */ |
2483 | inotify_rm_watch (fs_fd, wd); |
3297 | inotify_rm_watch (fs_fd, wd); |
2484 | } |
3298 | } |
… | |
… | |
2486 | static void noinline |
3300 | static void noinline |
2487 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3301 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2488 | { |
3302 | { |
2489 | if (slot < 0) |
3303 | if (slot < 0) |
2490 | /* overflow, need to check for all hash slots */ |
3304 | /* overflow, need to check for all hash slots */ |
2491 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3305 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2492 | infy_wd (EV_A_ slot, wd, ev); |
3306 | infy_wd (EV_A_ slot, wd, ev); |
2493 | else |
3307 | else |
2494 | { |
3308 | { |
2495 | WL w_; |
3309 | WL w_; |
2496 | |
3310 | |
2497 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3311 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2498 | { |
3312 | { |
2499 | ev_stat *w = (ev_stat *)w_; |
3313 | ev_stat *w = (ev_stat *)w_; |
2500 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3314 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2501 | |
3315 | |
2502 | if (w->wd == wd || wd == -1) |
3316 | if (w->wd == wd || wd == -1) |
2503 | { |
3317 | { |
2504 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3318 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2505 | { |
3319 | { |
|
|
3320 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2506 | w->wd = -1; |
3321 | w->wd = -1; |
2507 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3322 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2508 | } |
3323 | } |
2509 | |
3324 | |
2510 | stat_timer_cb (EV_A_ &w->timer, 0); |
3325 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2515 | |
3330 | |
2516 | static void |
3331 | static void |
2517 | infy_cb (EV_P_ ev_io *w, int revents) |
3332 | infy_cb (EV_P_ ev_io *w, int revents) |
2518 | { |
3333 | { |
2519 | char buf [EV_INOTIFY_BUFSIZE]; |
3334 | char buf [EV_INOTIFY_BUFSIZE]; |
2520 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2521 | int ofs; |
3335 | int ofs; |
2522 | int len = read (fs_fd, buf, sizeof (buf)); |
3336 | int len = read (fs_fd, buf, sizeof (buf)); |
2523 | |
3337 | |
2524 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3338 | for (ofs = 0; ofs < len; ) |
|
|
3339 | { |
|
|
3340 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2525 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3341 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3342 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3343 | } |
2526 | } |
3344 | } |
2527 | |
3345 | |
2528 | void inline_size |
3346 | inline_size void ecb_cold |
2529 | infy_init (EV_P) |
3347 | ev_check_2625 (EV_P) |
2530 | { |
3348 | { |
2531 | if (fs_fd != -2) |
|
|
2532 | return; |
|
|
2533 | |
|
|
2534 | /* kernels < 2.6.25 are borked |
3349 | /* kernels < 2.6.25 are borked |
2535 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3350 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2536 | */ |
3351 | */ |
2537 | { |
3352 | if (ev_linux_version () < 0x020619) |
2538 | struct utsname buf; |
3353 | return; |
2539 | int major, minor, micro; |
|
|
2540 | |
3354 | |
|
|
3355 | fs_2625 = 1; |
|
|
3356 | } |
|
|
3357 | |
|
|
3358 | inline_size int |
|
|
3359 | infy_newfd (void) |
|
|
3360 | { |
|
|
3361 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3362 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3363 | if (fd >= 0) |
|
|
3364 | return fd; |
|
|
3365 | #endif |
|
|
3366 | return inotify_init (); |
|
|
3367 | } |
|
|
3368 | |
|
|
3369 | inline_size void |
|
|
3370 | infy_init (EV_P) |
|
|
3371 | { |
|
|
3372 | if (fs_fd != -2) |
|
|
3373 | return; |
|
|
3374 | |
2541 | fs_fd = -1; |
3375 | fs_fd = -1; |
2542 | |
3376 | |
2543 | if (uname (&buf)) |
3377 | ev_check_2625 (EV_A); |
2544 | return; |
|
|
2545 | |
3378 | |
2546 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2547 | return; |
|
|
2548 | |
|
|
2549 | if (major < 2 |
|
|
2550 | || (major == 2 && minor < 6) |
|
|
2551 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2552 | return; |
|
|
2553 | } |
|
|
2554 | |
|
|
2555 | fs_fd = inotify_init (); |
3379 | fs_fd = infy_newfd (); |
2556 | |
3380 | |
2557 | if (fs_fd >= 0) |
3381 | if (fs_fd >= 0) |
2558 | { |
3382 | { |
|
|
3383 | fd_intern (fs_fd); |
2559 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3384 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2560 | ev_set_priority (&fs_w, EV_MAXPRI); |
3385 | ev_set_priority (&fs_w, EV_MAXPRI); |
2561 | ev_io_start (EV_A_ &fs_w); |
3386 | ev_io_start (EV_A_ &fs_w); |
|
|
3387 | ev_unref (EV_A); |
2562 | } |
3388 | } |
2563 | } |
3389 | } |
2564 | |
3390 | |
2565 | void inline_size |
3391 | inline_size void |
2566 | infy_fork (EV_P) |
3392 | infy_fork (EV_P) |
2567 | { |
3393 | { |
2568 | int slot; |
3394 | int slot; |
2569 | |
3395 | |
2570 | if (fs_fd < 0) |
3396 | if (fs_fd < 0) |
2571 | return; |
3397 | return; |
2572 | |
3398 | |
|
|
3399 | ev_ref (EV_A); |
|
|
3400 | ev_io_stop (EV_A_ &fs_w); |
2573 | close (fs_fd); |
3401 | close (fs_fd); |
2574 | fs_fd = inotify_init (); |
3402 | fs_fd = infy_newfd (); |
2575 | |
3403 | |
|
|
3404 | if (fs_fd >= 0) |
|
|
3405 | { |
|
|
3406 | fd_intern (fs_fd); |
|
|
3407 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3408 | ev_io_start (EV_A_ &fs_w); |
|
|
3409 | ev_unref (EV_A); |
|
|
3410 | } |
|
|
3411 | |
2576 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3412 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2577 | { |
3413 | { |
2578 | WL w_ = fs_hash [slot].head; |
3414 | WL w_ = fs_hash [slot].head; |
2579 | fs_hash [slot].head = 0; |
3415 | fs_hash [slot].head = 0; |
2580 | |
3416 | |
2581 | while (w_) |
3417 | while (w_) |
… | |
… | |
2586 | w->wd = -1; |
3422 | w->wd = -1; |
2587 | |
3423 | |
2588 | if (fs_fd >= 0) |
3424 | if (fs_fd >= 0) |
2589 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3425 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2590 | else |
3426 | else |
|
|
3427 | { |
|
|
3428 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3429 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2591 | ev_timer_start (EV_A_ &w->timer); |
3430 | ev_timer_again (EV_A_ &w->timer); |
|
|
3431 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3432 | } |
2592 | } |
3433 | } |
2593 | } |
3434 | } |
2594 | } |
3435 | } |
2595 | |
3436 | |
2596 | #endif |
3437 | #endif |
… | |
… | |
2613 | static void noinline |
3454 | static void noinline |
2614 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3455 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2615 | { |
3456 | { |
2616 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3457 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2617 | |
3458 | |
2618 | /* we copy this here each the time so that */ |
3459 | ev_statdata prev = w->attr; |
2619 | /* prev has the old value when the callback gets invoked */ |
|
|
2620 | w->prev = w->attr; |
|
|
2621 | ev_stat_stat (EV_A_ w); |
3460 | ev_stat_stat (EV_A_ w); |
2622 | |
3461 | |
2623 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3462 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2624 | if ( |
3463 | if ( |
2625 | w->prev.st_dev != w->attr.st_dev |
3464 | prev.st_dev != w->attr.st_dev |
2626 | || w->prev.st_ino != w->attr.st_ino |
3465 | || prev.st_ino != w->attr.st_ino |
2627 | || w->prev.st_mode != w->attr.st_mode |
3466 | || prev.st_mode != w->attr.st_mode |
2628 | || w->prev.st_nlink != w->attr.st_nlink |
3467 | || prev.st_nlink != w->attr.st_nlink |
2629 | || w->prev.st_uid != w->attr.st_uid |
3468 | || prev.st_uid != w->attr.st_uid |
2630 | || w->prev.st_gid != w->attr.st_gid |
3469 | || prev.st_gid != w->attr.st_gid |
2631 | || w->prev.st_rdev != w->attr.st_rdev |
3470 | || prev.st_rdev != w->attr.st_rdev |
2632 | || w->prev.st_size != w->attr.st_size |
3471 | || prev.st_size != w->attr.st_size |
2633 | || w->prev.st_atime != w->attr.st_atime |
3472 | || prev.st_atime != w->attr.st_atime |
2634 | || w->prev.st_mtime != w->attr.st_mtime |
3473 | || prev.st_mtime != w->attr.st_mtime |
2635 | || w->prev.st_ctime != w->attr.st_ctime |
3474 | || prev.st_ctime != w->attr.st_ctime |
2636 | ) { |
3475 | ) { |
|
|
3476 | /* we only update w->prev on actual differences */ |
|
|
3477 | /* in case we test more often than invoke the callback, */ |
|
|
3478 | /* to ensure that prev is always different to attr */ |
|
|
3479 | w->prev = prev; |
|
|
3480 | |
2637 | #if EV_USE_INOTIFY |
3481 | #if EV_USE_INOTIFY |
2638 | if (fs_fd >= 0) |
3482 | if (fs_fd >= 0) |
2639 | { |
3483 | { |
2640 | infy_del (EV_A_ w); |
3484 | infy_del (EV_A_ w); |
2641 | infy_add (EV_A_ w); |
3485 | infy_add (EV_A_ w); |
… | |
… | |
2651 | ev_stat_start (EV_P_ ev_stat *w) |
3495 | ev_stat_start (EV_P_ ev_stat *w) |
2652 | { |
3496 | { |
2653 | if (expect_false (ev_is_active (w))) |
3497 | if (expect_false (ev_is_active (w))) |
2654 | return; |
3498 | return; |
2655 | |
3499 | |
2656 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2657 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2658 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2659 | |
|
|
2660 | ev_stat_stat (EV_A_ w); |
3500 | ev_stat_stat (EV_A_ w); |
2661 | |
3501 | |
|
|
3502 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2662 | if (w->interval < MIN_STAT_INTERVAL) |
3503 | w->interval = MIN_STAT_INTERVAL; |
2663 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2664 | |
3504 | |
2665 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3505 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2666 | ev_set_priority (&w->timer, ev_priority (w)); |
3506 | ev_set_priority (&w->timer, ev_priority (w)); |
2667 | |
3507 | |
2668 | #if EV_USE_INOTIFY |
3508 | #if EV_USE_INOTIFY |
2669 | infy_init (EV_A); |
3509 | infy_init (EV_A); |
2670 | |
3510 | |
2671 | if (fs_fd >= 0) |
3511 | if (fs_fd >= 0) |
2672 | infy_add (EV_A_ w); |
3512 | infy_add (EV_A_ w); |
2673 | else |
3513 | else |
2674 | #endif |
3514 | #endif |
|
|
3515 | { |
2675 | ev_timer_start (EV_A_ &w->timer); |
3516 | ev_timer_again (EV_A_ &w->timer); |
|
|
3517 | ev_unref (EV_A); |
|
|
3518 | } |
2676 | |
3519 | |
2677 | ev_start (EV_A_ (W)w, 1); |
3520 | ev_start (EV_A_ (W)w, 1); |
2678 | |
3521 | |
2679 | EV_FREQUENT_CHECK; |
3522 | EV_FREQUENT_CHECK; |
2680 | } |
3523 | } |
… | |
… | |
2689 | EV_FREQUENT_CHECK; |
3532 | EV_FREQUENT_CHECK; |
2690 | |
3533 | |
2691 | #if EV_USE_INOTIFY |
3534 | #if EV_USE_INOTIFY |
2692 | infy_del (EV_A_ w); |
3535 | infy_del (EV_A_ w); |
2693 | #endif |
3536 | #endif |
|
|
3537 | |
|
|
3538 | if (ev_is_active (&w->timer)) |
|
|
3539 | { |
|
|
3540 | ev_ref (EV_A); |
2694 | ev_timer_stop (EV_A_ &w->timer); |
3541 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3542 | } |
2695 | |
3543 | |
2696 | ev_stop (EV_A_ (W)w); |
3544 | ev_stop (EV_A_ (W)w); |
2697 | |
3545 | |
2698 | EV_FREQUENT_CHECK; |
3546 | EV_FREQUENT_CHECK; |
2699 | } |
3547 | } |
… | |
… | |
2744 | |
3592 | |
2745 | EV_FREQUENT_CHECK; |
3593 | EV_FREQUENT_CHECK; |
2746 | } |
3594 | } |
2747 | #endif |
3595 | #endif |
2748 | |
3596 | |
|
|
3597 | #if EV_PREPARE_ENABLE |
2749 | void |
3598 | void |
2750 | ev_prepare_start (EV_P_ ev_prepare *w) |
3599 | ev_prepare_start (EV_P_ ev_prepare *w) |
2751 | { |
3600 | { |
2752 | if (expect_false (ev_is_active (w))) |
3601 | if (expect_false (ev_is_active (w))) |
2753 | return; |
3602 | return; |
… | |
… | |
2779 | |
3628 | |
2780 | ev_stop (EV_A_ (W)w); |
3629 | ev_stop (EV_A_ (W)w); |
2781 | |
3630 | |
2782 | EV_FREQUENT_CHECK; |
3631 | EV_FREQUENT_CHECK; |
2783 | } |
3632 | } |
|
|
3633 | #endif |
2784 | |
3634 | |
|
|
3635 | #if EV_CHECK_ENABLE |
2785 | void |
3636 | void |
2786 | ev_check_start (EV_P_ ev_check *w) |
3637 | ev_check_start (EV_P_ ev_check *w) |
2787 | { |
3638 | { |
2788 | if (expect_false (ev_is_active (w))) |
3639 | if (expect_false (ev_is_active (w))) |
2789 | return; |
3640 | return; |
… | |
… | |
2815 | |
3666 | |
2816 | ev_stop (EV_A_ (W)w); |
3667 | ev_stop (EV_A_ (W)w); |
2817 | |
3668 | |
2818 | EV_FREQUENT_CHECK; |
3669 | EV_FREQUENT_CHECK; |
2819 | } |
3670 | } |
|
|
3671 | #endif |
2820 | |
3672 | |
2821 | #if EV_EMBED_ENABLE |
3673 | #if EV_EMBED_ENABLE |
2822 | void noinline |
3674 | void noinline |
2823 | ev_embed_sweep (EV_P_ ev_embed *w) |
3675 | ev_embed_sweep (EV_P_ ev_embed *w) |
2824 | { |
3676 | { |
2825 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3677 | ev_run (w->other, EVRUN_NOWAIT); |
2826 | } |
3678 | } |
2827 | |
3679 | |
2828 | static void |
3680 | static void |
2829 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3681 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2830 | { |
3682 | { |
2831 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3683 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2832 | |
3684 | |
2833 | if (ev_cb (w)) |
3685 | if (ev_cb (w)) |
2834 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3686 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2835 | else |
3687 | else |
2836 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3688 | ev_run (w->other, EVRUN_NOWAIT); |
2837 | } |
3689 | } |
2838 | |
3690 | |
2839 | static void |
3691 | static void |
2840 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3692 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2841 | { |
3693 | { |
2842 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3694 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2843 | |
3695 | |
2844 | { |
3696 | { |
2845 | struct ev_loop *loop = w->other; |
3697 | EV_P = w->other; |
2846 | |
3698 | |
2847 | while (fdchangecnt) |
3699 | while (fdchangecnt) |
2848 | { |
3700 | { |
2849 | fd_reify (EV_A); |
3701 | fd_reify (EV_A); |
2850 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3702 | ev_run (EV_A_ EVRUN_NOWAIT); |
2851 | } |
3703 | } |
2852 | } |
3704 | } |
2853 | } |
3705 | } |
2854 | |
3706 | |
2855 | static void |
3707 | static void |
2856 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3708 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2857 | { |
3709 | { |
2858 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3710 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2859 | |
3711 | |
|
|
3712 | ev_embed_stop (EV_A_ w); |
|
|
3713 | |
2860 | { |
3714 | { |
2861 | struct ev_loop *loop = w->other; |
3715 | EV_P = w->other; |
2862 | |
3716 | |
2863 | ev_loop_fork (EV_A); |
3717 | ev_loop_fork (EV_A); |
|
|
3718 | ev_run (EV_A_ EVRUN_NOWAIT); |
2864 | } |
3719 | } |
|
|
3720 | |
|
|
3721 | ev_embed_start (EV_A_ w); |
2865 | } |
3722 | } |
2866 | |
3723 | |
2867 | #if 0 |
3724 | #if 0 |
2868 | static void |
3725 | static void |
2869 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3726 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2877 | { |
3734 | { |
2878 | if (expect_false (ev_is_active (w))) |
3735 | if (expect_false (ev_is_active (w))) |
2879 | return; |
3736 | return; |
2880 | |
3737 | |
2881 | { |
3738 | { |
2882 | struct ev_loop *loop = w->other; |
3739 | EV_P = w->other; |
2883 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3740 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2884 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3741 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2885 | } |
3742 | } |
2886 | |
3743 | |
2887 | EV_FREQUENT_CHECK; |
3744 | EV_FREQUENT_CHECK; |
2888 | |
3745 | |
… | |
… | |
2914 | |
3771 | |
2915 | ev_io_stop (EV_A_ &w->io); |
3772 | ev_io_stop (EV_A_ &w->io); |
2916 | ev_prepare_stop (EV_A_ &w->prepare); |
3773 | ev_prepare_stop (EV_A_ &w->prepare); |
2917 | ev_fork_stop (EV_A_ &w->fork); |
3774 | ev_fork_stop (EV_A_ &w->fork); |
2918 | |
3775 | |
|
|
3776 | ev_stop (EV_A_ (W)w); |
|
|
3777 | |
2919 | EV_FREQUENT_CHECK; |
3778 | EV_FREQUENT_CHECK; |
2920 | } |
3779 | } |
2921 | #endif |
3780 | #endif |
2922 | |
3781 | |
2923 | #if EV_FORK_ENABLE |
3782 | #if EV_FORK_ENABLE |
… | |
… | |
2956 | |
3815 | |
2957 | EV_FREQUENT_CHECK; |
3816 | EV_FREQUENT_CHECK; |
2958 | } |
3817 | } |
2959 | #endif |
3818 | #endif |
2960 | |
3819 | |
|
|
3820 | #if EV_CLEANUP_ENABLE |
|
|
3821 | void |
|
|
3822 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
3823 | { |
|
|
3824 | if (expect_false (ev_is_active (w))) |
|
|
3825 | return; |
|
|
3826 | |
|
|
3827 | EV_FREQUENT_CHECK; |
|
|
3828 | |
|
|
3829 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3830 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3831 | cleanups [cleanupcnt - 1] = w; |
|
|
3832 | |
|
|
3833 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3834 | ev_unref (EV_A); |
|
|
3835 | EV_FREQUENT_CHECK; |
|
|
3836 | } |
|
|
3837 | |
|
|
3838 | void |
|
|
3839 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3840 | { |
|
|
3841 | clear_pending (EV_A_ (W)w); |
|
|
3842 | if (expect_false (!ev_is_active (w))) |
|
|
3843 | return; |
|
|
3844 | |
|
|
3845 | EV_FREQUENT_CHECK; |
|
|
3846 | ev_ref (EV_A); |
|
|
3847 | |
|
|
3848 | { |
|
|
3849 | int active = ev_active (w); |
|
|
3850 | |
|
|
3851 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3852 | ev_active (cleanups [active - 1]) = active; |
|
|
3853 | } |
|
|
3854 | |
|
|
3855 | ev_stop (EV_A_ (W)w); |
|
|
3856 | |
|
|
3857 | EV_FREQUENT_CHECK; |
|
|
3858 | } |
|
|
3859 | #endif |
|
|
3860 | |
2961 | #if EV_ASYNC_ENABLE |
3861 | #if EV_ASYNC_ENABLE |
2962 | void |
3862 | void |
2963 | ev_async_start (EV_P_ ev_async *w) |
3863 | ev_async_start (EV_P_ ev_async *w) |
2964 | { |
3864 | { |
2965 | if (expect_false (ev_is_active (w))) |
3865 | if (expect_false (ev_is_active (w))) |
2966 | return; |
3866 | return; |
2967 | |
3867 | |
|
|
3868 | w->sent = 0; |
|
|
3869 | |
2968 | evpipe_init (EV_A); |
3870 | evpipe_init (EV_A); |
2969 | |
3871 | |
2970 | EV_FREQUENT_CHECK; |
3872 | EV_FREQUENT_CHECK; |
2971 | |
3873 | |
2972 | ev_start (EV_A_ (W)w, ++asynccnt); |
3874 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
2999 | |
3901 | |
3000 | void |
3902 | void |
3001 | ev_async_send (EV_P_ ev_async *w) |
3903 | ev_async_send (EV_P_ ev_async *w) |
3002 | { |
3904 | { |
3003 | w->sent = 1; |
3905 | w->sent = 1; |
3004 | evpipe_write (EV_A_ &gotasync); |
3906 | evpipe_write (EV_A_ &async_pending); |
3005 | } |
3907 | } |
3006 | #endif |
3908 | #endif |
3007 | |
3909 | |
3008 | /*****************************************************************************/ |
3910 | /*****************************************************************************/ |
3009 | |
3911 | |
… | |
… | |
3049 | { |
3951 | { |
3050 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3952 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3051 | |
3953 | |
3052 | if (expect_false (!once)) |
3954 | if (expect_false (!once)) |
3053 | { |
3955 | { |
3054 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3956 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3055 | return; |
3957 | return; |
3056 | } |
3958 | } |
3057 | |
3959 | |
3058 | once->cb = cb; |
3960 | once->cb = cb; |
3059 | once->arg = arg; |
3961 | once->arg = arg; |
… | |
… | |
3071 | ev_timer_set (&once->to, timeout, 0.); |
3973 | ev_timer_set (&once->to, timeout, 0.); |
3072 | ev_timer_start (EV_A_ &once->to); |
3974 | ev_timer_start (EV_A_ &once->to); |
3073 | } |
3975 | } |
3074 | } |
3976 | } |
3075 | |
3977 | |
|
|
3978 | /*****************************************************************************/ |
|
|
3979 | |
|
|
3980 | #if EV_WALK_ENABLE |
|
|
3981 | void ecb_cold |
|
|
3982 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3983 | { |
|
|
3984 | int i, j; |
|
|
3985 | ev_watcher_list *wl, *wn; |
|
|
3986 | |
|
|
3987 | if (types & (EV_IO | EV_EMBED)) |
|
|
3988 | for (i = 0; i < anfdmax; ++i) |
|
|
3989 | for (wl = anfds [i].head; wl; ) |
|
|
3990 | { |
|
|
3991 | wn = wl->next; |
|
|
3992 | |
|
|
3993 | #if EV_EMBED_ENABLE |
|
|
3994 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3995 | { |
|
|
3996 | if (types & EV_EMBED) |
|
|
3997 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3998 | } |
|
|
3999 | else |
|
|
4000 | #endif |
|
|
4001 | #if EV_USE_INOTIFY |
|
|
4002 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4003 | ; |
|
|
4004 | else |
|
|
4005 | #endif |
|
|
4006 | if ((ev_io *)wl != &pipe_w) |
|
|
4007 | if (types & EV_IO) |
|
|
4008 | cb (EV_A_ EV_IO, wl); |
|
|
4009 | |
|
|
4010 | wl = wn; |
|
|
4011 | } |
|
|
4012 | |
|
|
4013 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4014 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4015 | #if EV_STAT_ENABLE |
|
|
4016 | /*TODO: timer is not always active*/ |
|
|
4017 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4018 | { |
|
|
4019 | if (types & EV_STAT) |
|
|
4020 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4021 | } |
|
|
4022 | else |
|
|
4023 | #endif |
|
|
4024 | if (types & EV_TIMER) |
|
|
4025 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4026 | |
|
|
4027 | #if EV_PERIODIC_ENABLE |
|
|
4028 | if (types & EV_PERIODIC) |
|
|
4029 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4030 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4031 | #endif |
|
|
4032 | |
|
|
4033 | #if EV_IDLE_ENABLE |
|
|
4034 | if (types & EV_IDLE) |
|
|
4035 | for (j = NUMPRI; j--; ) |
|
|
4036 | for (i = idlecnt [j]; i--; ) |
|
|
4037 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4038 | #endif |
|
|
4039 | |
|
|
4040 | #if EV_FORK_ENABLE |
|
|
4041 | if (types & EV_FORK) |
|
|
4042 | for (i = forkcnt; i--; ) |
|
|
4043 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4044 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4045 | #endif |
|
|
4046 | |
|
|
4047 | #if EV_ASYNC_ENABLE |
|
|
4048 | if (types & EV_ASYNC) |
|
|
4049 | for (i = asynccnt; i--; ) |
|
|
4050 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4051 | #endif |
|
|
4052 | |
|
|
4053 | #if EV_PREPARE_ENABLE |
|
|
4054 | if (types & EV_PREPARE) |
|
|
4055 | for (i = preparecnt; i--; ) |
|
|
4056 | # if EV_EMBED_ENABLE |
|
|
4057 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4058 | # endif |
|
|
4059 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4060 | #endif |
|
|
4061 | |
|
|
4062 | #if EV_CHECK_ENABLE |
|
|
4063 | if (types & EV_CHECK) |
|
|
4064 | for (i = checkcnt; i--; ) |
|
|
4065 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4066 | #endif |
|
|
4067 | |
|
|
4068 | #if EV_SIGNAL_ENABLE |
|
|
4069 | if (types & EV_SIGNAL) |
|
|
4070 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4071 | for (wl = signals [i].head; wl; ) |
|
|
4072 | { |
|
|
4073 | wn = wl->next; |
|
|
4074 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4075 | wl = wn; |
|
|
4076 | } |
|
|
4077 | #endif |
|
|
4078 | |
|
|
4079 | #if EV_CHILD_ENABLE |
|
|
4080 | if (types & EV_CHILD) |
|
|
4081 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4082 | for (wl = childs [i]; wl; ) |
|
|
4083 | { |
|
|
4084 | wn = wl->next; |
|
|
4085 | cb (EV_A_ EV_CHILD, wl); |
|
|
4086 | wl = wn; |
|
|
4087 | } |
|
|
4088 | #endif |
|
|
4089 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4090 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4091 | } |
|
|
4092 | #endif |
|
|
4093 | |
3076 | #if EV_MULTIPLICITY |
4094 | #if EV_MULTIPLICITY |
3077 | #include "ev_wrap.h" |
4095 | #include "ev_wrap.h" |
3078 | #endif |
4096 | #endif |
3079 | |
4097 | |
3080 | #ifdef __cplusplus |
4098 | EV_CPP(}) |
3081 | } |
|
|
3082 | #endif |
|
|
3083 | |
4099 | |