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 |
… | |
… | |
160 | # define WIN32_LEAN_AND_MEAN |
194 | # define WIN32_LEAN_AND_MEAN |
161 | # include <windows.h> |
195 | # include <windows.h> |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
196 | # ifndef EV_SELECT_IS_WINSOCKET |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
197 | # define EV_SELECT_IS_WINSOCKET 1 |
164 | # endif |
198 | # endif |
|
|
199 | # undef EV_AVOID_STDIO |
165 | #endif |
200 | #endif |
|
|
201 | |
|
|
202 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
203 | * a limit of 1024 into their select. Where people have brains, |
|
|
204 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
205 | * ordered to have a vacuum, or they do anything for money. |
|
|
206 | * This might help. Or not. |
|
|
207 | */ |
|
|
208 | #define _DARWIN_UNLIMITED_SELECT 1 |
166 | |
209 | |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
210 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
211 | |
|
|
212 | /* try to deduce the maximum number of signals on this platform */ |
|
|
213 | #if defined (EV_NSIG) |
|
|
214 | /* use what's provided */ |
|
|
215 | #elif defined (NSIG) |
|
|
216 | # define EV_NSIG (NSIG) |
|
|
217 | #elif defined(_NSIG) |
|
|
218 | # define EV_NSIG (_NSIG) |
|
|
219 | #elif defined (SIGMAX) |
|
|
220 | # define EV_NSIG (SIGMAX+1) |
|
|
221 | #elif defined (SIG_MAX) |
|
|
222 | # define EV_NSIG (SIG_MAX+1) |
|
|
223 | #elif defined (_SIG_MAX) |
|
|
224 | # define EV_NSIG (_SIG_MAX+1) |
|
|
225 | #elif defined (MAXSIG) |
|
|
226 | # define EV_NSIG (MAXSIG+1) |
|
|
227 | #elif defined (MAX_SIG) |
|
|
228 | # define EV_NSIG (MAX_SIG+1) |
|
|
229 | #elif defined (SIGARRAYSIZE) |
|
|
230 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
231 | #elif defined (_sys_nsig) |
|
|
232 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
233 | #else |
|
|
234 | # error "unable to find value for NSIG, please report" |
|
|
235 | /* to make it compile regardless, just remove the above line, */ |
|
|
236 | /* but consider reporting it, too! :) */ |
|
|
237 | # define EV_NSIG 65 |
|
|
238 | #endif |
|
|
239 | |
|
|
240 | #ifndef EV_USE_FLOOR |
|
|
241 | # define EV_USE_FLOOR 0 |
|
|
242 | #endif |
|
|
243 | |
|
|
244 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
245 | # if __linux && __GLIBC__ >= 2 |
|
|
246 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
247 | # else |
|
|
248 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
249 | # endif |
|
|
250 | #endif |
168 | |
251 | |
169 | #ifndef EV_USE_MONOTONIC |
252 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
253 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
254 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
172 | # else |
255 | # else |
173 | # define EV_USE_MONOTONIC 0 |
256 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
257 | # endif |
175 | #endif |
258 | #endif |
176 | |
259 | |
177 | #ifndef EV_USE_REALTIME |
260 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
261 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
262 | #endif |
180 | |
263 | |
181 | #ifndef EV_USE_NANOSLEEP |
264 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
265 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
266 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
184 | # else |
267 | # else |
185 | # define EV_USE_NANOSLEEP 0 |
268 | # define EV_USE_NANOSLEEP 0 |
186 | # endif |
269 | # endif |
187 | #endif |
270 | #endif |
188 | |
271 | |
189 | #ifndef EV_USE_SELECT |
272 | #ifndef EV_USE_SELECT |
190 | # define EV_USE_SELECT 1 |
273 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
191 | #endif |
274 | #endif |
192 | |
275 | |
193 | #ifndef EV_USE_POLL |
276 | #ifndef EV_USE_POLL |
194 | # ifdef _WIN32 |
277 | # ifdef _WIN32 |
195 | # define EV_USE_POLL 0 |
278 | # define EV_USE_POLL 0 |
196 | # else |
279 | # else |
197 | # define EV_USE_POLL 1 |
280 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
198 | # endif |
281 | # endif |
199 | #endif |
282 | #endif |
200 | |
283 | |
201 | #ifndef EV_USE_EPOLL |
284 | #ifndef EV_USE_EPOLL |
202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
285 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
203 | # define EV_USE_EPOLL 1 |
286 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
204 | # else |
287 | # else |
205 | # define EV_USE_EPOLL 0 |
288 | # define EV_USE_EPOLL 0 |
206 | # endif |
289 | # endif |
207 | #endif |
290 | #endif |
208 | |
291 | |
… | |
… | |
214 | # define EV_USE_PORT 0 |
297 | # define EV_USE_PORT 0 |
215 | #endif |
298 | #endif |
216 | |
299 | |
217 | #ifndef EV_USE_INOTIFY |
300 | #ifndef EV_USE_INOTIFY |
218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
301 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
219 | # define EV_USE_INOTIFY 1 |
302 | # define EV_USE_INOTIFY EV_FEATURE_OS |
220 | # else |
303 | # else |
221 | # define EV_USE_INOTIFY 0 |
304 | # define EV_USE_INOTIFY 0 |
222 | # endif |
305 | # endif |
223 | #endif |
306 | #endif |
224 | |
307 | |
225 | #ifndef EV_PID_HASHSIZE |
308 | #ifndef EV_PID_HASHSIZE |
226 | # if EV_MINIMAL |
309 | # 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 |
310 | #endif |
232 | |
311 | |
233 | #ifndef EV_INOTIFY_HASHSIZE |
312 | #ifndef EV_INOTIFY_HASHSIZE |
234 | # if EV_MINIMAL |
313 | # 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 |
314 | #endif |
240 | |
315 | |
241 | #ifndef EV_USE_EVENTFD |
316 | #ifndef EV_USE_EVENTFD |
242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
317 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
243 | # define EV_USE_EVENTFD 1 |
318 | # define EV_USE_EVENTFD EV_FEATURE_OS |
244 | # else |
319 | # else |
245 | # define EV_USE_EVENTFD 0 |
320 | # define EV_USE_EVENTFD 0 |
|
|
321 | # endif |
|
|
322 | #endif |
|
|
323 | |
|
|
324 | #ifndef EV_USE_SIGNALFD |
|
|
325 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
326 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
327 | # else |
|
|
328 | # define EV_USE_SIGNALFD 0 |
246 | # endif |
329 | # endif |
247 | #endif |
330 | #endif |
248 | |
331 | |
249 | #if 0 /* debugging */ |
332 | #if 0 /* debugging */ |
250 | # define EV_VERIFY 3 |
333 | # define EV_VERIFY 3 |
251 | # define EV_USE_4HEAP 1 |
334 | # define EV_USE_4HEAP 1 |
252 | # define EV_HEAP_CACHE_AT 1 |
335 | # define EV_HEAP_CACHE_AT 1 |
253 | #endif |
336 | #endif |
254 | |
337 | |
255 | #ifndef EV_VERIFY |
338 | #ifndef EV_VERIFY |
256 | # define EV_VERIFY !EV_MINIMAL |
339 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
257 | #endif |
340 | #endif |
258 | |
341 | |
259 | #ifndef EV_USE_4HEAP |
342 | #ifndef EV_USE_4HEAP |
260 | # define EV_USE_4HEAP !EV_MINIMAL |
343 | # define EV_USE_4HEAP EV_FEATURE_DATA |
261 | #endif |
344 | #endif |
262 | |
345 | |
263 | #ifndef EV_HEAP_CACHE_AT |
346 | #ifndef EV_HEAP_CACHE_AT |
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
347 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
348 | #endif |
|
|
349 | |
|
|
350 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
351 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
352 | #if EV_USE_CLOCK_SYSCALL |
|
|
353 | # include <syscall.h> |
|
|
354 | # ifdef SYS_clock_gettime |
|
|
355 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
356 | # undef EV_USE_MONOTONIC |
|
|
357 | # define EV_USE_MONOTONIC 1 |
|
|
358 | # else |
|
|
359 | # undef EV_USE_CLOCK_SYSCALL |
|
|
360 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
361 | # endif |
265 | #endif |
362 | #endif |
266 | |
363 | |
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
364 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
365 | |
|
|
366 | #ifdef _AIX |
|
|
367 | /* AIX has a completely broken poll.h header */ |
|
|
368 | # undef EV_USE_POLL |
|
|
369 | # define EV_USE_POLL 0 |
|
|
370 | #endif |
268 | |
371 | |
269 | #ifndef CLOCK_MONOTONIC |
372 | #ifndef CLOCK_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
373 | # undef EV_USE_MONOTONIC |
271 | # define EV_USE_MONOTONIC 0 |
374 | # define EV_USE_MONOTONIC 0 |
272 | #endif |
375 | #endif |
… | |
… | |
280 | # undef EV_USE_INOTIFY |
383 | # undef EV_USE_INOTIFY |
281 | # define EV_USE_INOTIFY 0 |
384 | # define EV_USE_INOTIFY 0 |
282 | #endif |
385 | #endif |
283 | |
386 | |
284 | #if !EV_USE_NANOSLEEP |
387 | #if !EV_USE_NANOSLEEP |
285 | # ifndef _WIN32 |
388 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
389 | # if !defined(_WIN32) && !defined(__hpux) |
286 | # include <sys/select.h> |
390 | # include <sys/select.h> |
287 | # endif |
391 | # endif |
288 | #endif |
392 | #endif |
289 | |
393 | |
290 | #if EV_USE_INOTIFY |
394 | #if EV_USE_INOTIFY |
291 | # include <sys/utsname.h> |
395 | # include <sys/statfs.h> |
292 | # include <sys/inotify.h> |
396 | # include <sys/inotify.h> |
293 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
397 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
294 | # ifndef IN_DONT_FOLLOW |
398 | # ifndef IN_DONT_FOLLOW |
295 | # undef EV_USE_INOTIFY |
399 | # undef EV_USE_INOTIFY |
296 | # define EV_USE_INOTIFY 0 |
400 | # define EV_USE_INOTIFY 0 |
… | |
… | |
302 | #endif |
406 | #endif |
303 | |
407 | |
304 | #if EV_USE_EVENTFD |
408 | #if EV_USE_EVENTFD |
305 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
409 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
306 | # include <stdint.h> |
410 | # include <stdint.h> |
307 | # ifdef __cplusplus |
411 | # ifndef EFD_NONBLOCK |
308 | extern "C" { |
412 | # define EFD_NONBLOCK O_NONBLOCK |
309 | # endif |
413 | # endif |
310 | int eventfd (unsigned int initval, int flags); |
414 | # ifndef EFD_CLOEXEC |
311 | # ifdef __cplusplus |
415 | # ifdef O_CLOEXEC |
312 | } |
416 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
417 | # else |
|
|
418 | # define EFD_CLOEXEC 02000000 |
|
|
419 | # endif |
313 | # endif |
420 | # endif |
|
|
421 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
422 | #endif |
|
|
423 | |
|
|
424 | #if EV_USE_SIGNALFD |
|
|
425 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
426 | # include <stdint.h> |
|
|
427 | # ifndef SFD_NONBLOCK |
|
|
428 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
429 | # endif |
|
|
430 | # ifndef SFD_CLOEXEC |
|
|
431 | # ifdef O_CLOEXEC |
|
|
432 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
433 | # else |
|
|
434 | # define SFD_CLOEXEC 02000000 |
|
|
435 | # endif |
|
|
436 | # endif |
|
|
437 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
438 | |
|
|
439 | struct signalfd_siginfo |
|
|
440 | { |
|
|
441 | uint32_t ssi_signo; |
|
|
442 | char pad[128 - sizeof (uint32_t)]; |
|
|
443 | }; |
314 | #endif |
444 | #endif |
315 | |
445 | |
316 | /**/ |
446 | /**/ |
317 | |
447 | |
318 | #if EV_VERIFY >= 3 |
448 | #if EV_VERIFY >= 3 |
319 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
449 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
320 | #else |
450 | #else |
321 | # define EV_FREQUENT_CHECK do { } while (0) |
451 | # define EV_FREQUENT_CHECK do { } while (0) |
322 | #endif |
452 | #endif |
323 | |
453 | |
324 | /* |
454 | /* |
325 | * This is used to avoid floating point rounding problems. |
455 | * This is used to work around floating point rounding problems. |
326 | * It is added to ev_rt_now when scheduling periodics |
|
|
327 | * to ensure progress, time-wise, even when rounding |
|
|
328 | * errors are against us. |
|
|
329 | * This value is good at least till the year 4000. |
456 | * This value is good at least till the year 4000. |
330 | * Better solutions welcome. |
|
|
331 | */ |
457 | */ |
332 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
458 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
459 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
333 | |
460 | |
334 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
461 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
335 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
462 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
336 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
337 | |
463 | |
|
|
464 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
465 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
466 | |
|
|
467 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
468 | /* ECB.H BEGIN */ |
|
|
469 | /* |
|
|
470 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
471 | * |
|
|
472 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
473 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
474 | * All rights reserved. |
|
|
475 | * |
|
|
476 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
477 | * tion, are permitted provided that the following conditions are met: |
|
|
478 | * |
|
|
479 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
480 | * this list of conditions and the following disclaimer. |
|
|
481 | * |
|
|
482 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
483 | * notice, this list of conditions and the following disclaimer in the |
|
|
484 | * documentation and/or other materials provided with the distribution. |
|
|
485 | * |
|
|
486 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
487 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
488 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
489 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
490 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
491 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
492 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
493 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
494 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
495 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
496 | */ |
|
|
497 | |
|
|
498 | #ifndef ECB_H |
|
|
499 | #define ECB_H |
|
|
500 | |
|
|
501 | #ifdef _WIN32 |
|
|
502 | typedef signed char int8_t; |
|
|
503 | typedef unsigned char uint8_t; |
|
|
504 | typedef signed short int16_t; |
|
|
505 | typedef unsigned short uint16_t; |
|
|
506 | typedef signed int int32_t; |
|
|
507 | typedef unsigned int uint32_t; |
338 | #if __GNUC__ >= 4 |
508 | #if __GNUC__ |
339 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
509 | typedef signed long long int64_t; |
340 | # define noinline __attribute__ ((noinline)) |
510 | typedef unsigned long long uint64_t; |
|
|
511 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
512 | typedef signed __int64 int64_t; |
|
|
513 | typedef unsigned __int64 uint64_t; |
|
|
514 | #endif |
341 | #else |
515 | #else |
342 | # define expect(expr,value) (expr) |
516 | #include <inttypes.h> |
343 | # define noinline |
|
|
344 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
345 | # define inline |
|
|
346 | # endif |
517 | #endif |
|
|
518 | |
|
|
519 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
520 | * what their idiot authors think are the "more important" extensions, |
|
|
521 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
522 | * or so. |
|
|
523 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
524 | * an issue with that they should have done it right in the first place. |
|
|
525 | */ |
|
|
526 | #ifndef ECB_GCC_VERSION |
|
|
527 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
|
528 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
529 | #else |
|
|
530 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
347 | #endif |
531 | #endif |
|
|
532 | #endif |
348 | |
533 | |
|
|
534 | /*****************************************************************************/ |
|
|
535 | |
|
|
536 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
537 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
538 | |
|
|
539 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
540 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
541 | #endif |
|
|
542 | |
|
|
543 | #ifndef ECB_MEMORY_FENCE |
|
|
544 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
545 | #if __i386 || __i386__ |
|
|
546 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
547 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
548 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
549 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
551 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
552 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
553 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
555 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
|
|
556 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
|
|
557 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
558 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
|
|
559 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
|
|
560 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
561 | #elif __sparc || __sparc__ |
|
|
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
|
|
563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
564 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
565 | #elif defined(__s390__) || defined(__s390x__) |
|
|
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
567 | #endif |
|
|
568 | #endif |
|
|
569 | #endif |
|
|
570 | |
|
|
571 | #ifndef ECB_MEMORY_FENCE |
|
|
572 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
|
|
573 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
574 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
575 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
576 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
577 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
578 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
579 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
580 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
581 | #elif defined(_WIN32) |
|
|
582 | #include <WinNT.h> |
|
|
583 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
584 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
585 | #include <mbarrier.h> |
|
|
586 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
587 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
588 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
589 | #endif |
|
|
590 | #endif |
|
|
591 | |
|
|
592 | #ifndef ECB_MEMORY_FENCE |
|
|
593 | #if !ECB_AVOID_PTHREADS |
|
|
594 | /* |
|
|
595 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
596 | * or failure to find pthread.h, then you should implement |
|
|
597 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
598 | * OR provide pthread.h and link against the posix thread library |
|
|
599 | * of your system. |
|
|
600 | */ |
|
|
601 | #include <pthread.h> |
|
|
602 | #define ECB_NEEDS_PTHREADS 1 |
|
|
603 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
604 | |
|
|
605 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
606 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
607 | #endif |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
611 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
612 | #endif |
|
|
613 | |
|
|
614 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
615 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
616 | #endif |
|
|
617 | |
|
|
618 | /*****************************************************************************/ |
|
|
619 | |
|
|
620 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
621 | |
|
|
622 | #if __cplusplus |
|
|
623 | #define ecb_inline static inline |
|
|
624 | #elif ECB_GCC_VERSION(2,5) |
|
|
625 | #define ecb_inline static __inline__ |
|
|
626 | #elif ECB_C99 |
|
|
627 | #define ecb_inline static inline |
|
|
628 | #else |
|
|
629 | #define ecb_inline static |
|
|
630 | #endif |
|
|
631 | |
|
|
632 | #if ECB_GCC_VERSION(3,3) |
|
|
633 | #define ecb_restrict __restrict__ |
|
|
634 | #elif ECB_C99 |
|
|
635 | #define ecb_restrict restrict |
|
|
636 | #else |
|
|
637 | #define ecb_restrict |
|
|
638 | #endif |
|
|
639 | |
|
|
640 | typedef int ecb_bool; |
|
|
641 | |
|
|
642 | #define ECB_CONCAT_(a, b) a ## b |
|
|
643 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
644 | #define ECB_STRINGIFY_(a) # a |
|
|
645 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
646 | |
|
|
647 | #define ecb_function_ ecb_inline |
|
|
648 | |
|
|
649 | #if ECB_GCC_VERSION(3,1) |
|
|
650 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
651 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
652 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
653 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
654 | #else |
|
|
655 | #define ecb_attribute(attrlist) |
|
|
656 | #define ecb_is_constant(expr) 0 |
|
|
657 | #define ecb_expect(expr,value) (expr) |
|
|
658 | #define ecb_prefetch(addr,rw,locality) |
|
|
659 | #endif |
|
|
660 | |
|
|
661 | /* no emulation for ecb_decltype */ |
|
|
662 | #if ECB_GCC_VERSION(4,5) |
|
|
663 | #define ecb_decltype(x) __decltype(x) |
|
|
664 | #elif ECB_GCC_VERSION(3,0) |
|
|
665 | #define ecb_decltype(x) __typeof(x) |
|
|
666 | #endif |
|
|
667 | |
|
|
668 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
669 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
670 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
671 | #define ecb_const ecb_attribute ((__const__)) |
|
|
672 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
673 | |
|
|
674 | #if ECB_GCC_VERSION(4,3) |
|
|
675 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
676 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
677 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
678 | #else |
|
|
679 | #define ecb_artificial |
|
|
680 | #define ecb_hot |
|
|
681 | #define ecb_cold |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | /* put around conditional expressions if you are very sure that the */ |
|
|
685 | /* expression is mostly true or mostly false. note that these return */ |
|
|
686 | /* booleans, not the expression. */ |
349 | #define expect_false(expr) expect ((expr) != 0, 0) |
687 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
350 | #define expect_true(expr) expect ((expr) != 0, 1) |
688 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
689 | /* for compatibility to the rest of the world */ |
|
|
690 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
691 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
692 | |
|
|
693 | /* count trailing zero bits and count # of one bits */ |
|
|
694 | #if ECB_GCC_VERSION(3,4) |
|
|
695 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
696 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
697 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
698 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
699 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
700 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
701 | /* no popcountll */ |
|
|
702 | #else |
|
|
703 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
704 | ecb_function_ int |
|
|
705 | ecb_ctz32 (uint32_t x) |
|
|
706 | { |
|
|
707 | int r = 0; |
|
|
708 | |
|
|
709 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
710 | |
|
|
711 | #if ECB_branchless_on_i386 |
|
|
712 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
713 | r += !!(x & 0xcccccccc) << 1; |
|
|
714 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
715 | r += !!(x & 0xff00ff00) << 3; |
|
|
716 | r += !!(x & 0xffff0000) << 4; |
|
|
717 | #else |
|
|
718 | if (x & 0xaaaaaaaa) r += 1; |
|
|
719 | if (x & 0xcccccccc) r += 2; |
|
|
720 | if (x & 0xf0f0f0f0) r += 4; |
|
|
721 | if (x & 0xff00ff00) r += 8; |
|
|
722 | if (x & 0xffff0000) r += 16; |
|
|
723 | #endif |
|
|
724 | |
|
|
725 | return r; |
|
|
726 | } |
|
|
727 | |
|
|
728 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
729 | ecb_function_ int |
|
|
730 | ecb_ctz64 (uint64_t x) |
|
|
731 | { |
|
|
732 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
733 | return ecb_ctz32 (x >> shift) + shift; |
|
|
734 | } |
|
|
735 | |
|
|
736 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
737 | ecb_function_ int |
|
|
738 | ecb_popcount32 (uint32_t x) |
|
|
739 | { |
|
|
740 | x -= (x >> 1) & 0x55555555; |
|
|
741 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
742 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
743 | x *= 0x01010101; |
|
|
744 | |
|
|
745 | return x >> 24; |
|
|
746 | } |
|
|
747 | |
|
|
748 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
749 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
750 | { |
|
|
751 | int r = 0; |
|
|
752 | |
|
|
753 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
754 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
755 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
756 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
757 | if (x >> 1) { r += 1; } |
|
|
758 | |
|
|
759 | return r; |
|
|
760 | } |
|
|
761 | |
|
|
762 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
763 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
764 | { |
|
|
765 | int r = 0; |
|
|
766 | |
|
|
767 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
768 | |
|
|
769 | return r + ecb_ld32 (x); |
|
|
770 | } |
|
|
771 | #endif |
|
|
772 | |
|
|
773 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
774 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
775 | { |
|
|
776 | return ( (x * 0x0802U & 0x22110U) |
|
|
777 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
778 | } |
|
|
779 | |
|
|
780 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
781 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
782 | { |
|
|
783 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
784 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
785 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
786 | x = ( x >> 8 ) | ( x << 8); |
|
|
787 | |
|
|
788 | return x; |
|
|
789 | } |
|
|
790 | |
|
|
791 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
792 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
793 | { |
|
|
794 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
795 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
796 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
797 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
798 | x = ( x >> 16 ) | ( x << 16); |
|
|
799 | |
|
|
800 | return x; |
|
|
801 | } |
|
|
802 | |
|
|
803 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
804 | /* so for this version we are lazy */ |
|
|
805 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
806 | ecb_function_ int |
|
|
807 | ecb_popcount64 (uint64_t x) |
|
|
808 | { |
|
|
809 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
810 | } |
|
|
811 | |
|
|
812 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
813 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
814 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
815 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
816 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
817 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
818 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
819 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
820 | |
|
|
821 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
822 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
823 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
824 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
825 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
826 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
827 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
828 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
829 | |
|
|
830 | #if ECB_GCC_VERSION(4,3) |
|
|
831 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
832 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
833 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
834 | #else |
|
|
835 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
836 | ecb_function_ uint16_t |
|
|
837 | ecb_bswap16 (uint16_t x) |
|
|
838 | { |
|
|
839 | return ecb_rotl16 (x, 8); |
|
|
840 | } |
|
|
841 | |
|
|
842 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
843 | ecb_function_ uint32_t |
|
|
844 | ecb_bswap32 (uint32_t x) |
|
|
845 | { |
|
|
846 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
847 | } |
|
|
848 | |
|
|
849 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
850 | ecb_function_ uint64_t |
|
|
851 | ecb_bswap64 (uint64_t x) |
|
|
852 | { |
|
|
853 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
854 | } |
|
|
855 | #endif |
|
|
856 | |
|
|
857 | #if ECB_GCC_VERSION(4,5) |
|
|
858 | #define ecb_unreachable() __builtin_unreachable () |
|
|
859 | #else |
|
|
860 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
861 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
862 | ecb_inline void ecb_unreachable (void) { } |
|
|
863 | #endif |
|
|
864 | |
|
|
865 | /* try to tell the compiler that some condition is definitely true */ |
|
|
866 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
867 | |
|
|
868 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
869 | ecb_inline unsigned char |
|
|
870 | ecb_byteorder_helper (void) |
|
|
871 | { |
|
|
872 | const uint32_t u = 0x11223344; |
|
|
873 | return *(unsigned char *)&u; |
|
|
874 | } |
|
|
875 | |
|
|
876 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
877 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
878 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
879 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
880 | |
|
|
881 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
882 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
883 | #else |
|
|
884 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
885 | #endif |
|
|
886 | |
|
|
887 | #if __cplusplus |
|
|
888 | template<typename T> |
|
|
889 | static inline T ecb_div_rd (T val, T div) |
|
|
890 | { |
|
|
891 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
892 | } |
|
|
893 | template<typename T> |
|
|
894 | static inline T ecb_div_ru (T val, T div) |
|
|
895 | { |
|
|
896 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
897 | } |
|
|
898 | #else |
|
|
899 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
900 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
901 | #endif |
|
|
902 | |
|
|
903 | #if ecb_cplusplus_does_not_suck |
|
|
904 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
905 | template<typename T, int N> |
|
|
906 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
907 | { |
|
|
908 | return N; |
|
|
909 | } |
|
|
910 | #else |
|
|
911 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
912 | #endif |
|
|
913 | |
|
|
914 | #endif |
|
|
915 | |
|
|
916 | /* ECB.H END */ |
|
|
917 | |
|
|
918 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
919 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
920 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
921 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
922 | * libev, in which cases the memory fences become nops. |
|
|
923 | * alternatively, you can remove this #error and link against libpthread, |
|
|
924 | * which will then provide the memory fences. |
|
|
925 | */ |
|
|
926 | # error "memory fences not defined for your architecture, please report" |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #ifndef ECB_MEMORY_FENCE |
|
|
930 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
931 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
932 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
936 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
937 | #define noinline ecb_noinline |
|
|
938 | |
351 | #define inline_size static inline |
939 | #define inline_size ecb_inline |
352 | |
940 | |
353 | #if EV_MINIMAL |
941 | #if EV_FEATURE_CODE |
|
|
942 | # define inline_speed ecb_inline |
|
|
943 | #else |
354 | # define inline_speed static noinline |
944 | # define inline_speed static noinline |
|
|
945 | #endif |
|
|
946 | |
|
|
947 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
948 | |
|
|
949 | #if EV_MINPRI == EV_MAXPRI |
|
|
950 | # define ABSPRI(w) (((W)w), 0) |
355 | #else |
951 | #else |
356 | # define inline_speed static inline |
|
|
357 | #endif |
|
|
358 | |
|
|
359 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
360 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
952 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
953 | #endif |
361 | |
954 | |
362 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
955 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
363 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
956 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
364 | |
957 | |
365 | typedef ev_watcher *W; |
958 | typedef ev_watcher *W; |
… | |
… | |
367 | typedef ev_watcher_time *WT; |
960 | typedef ev_watcher_time *WT; |
368 | |
961 | |
369 | #define ev_active(w) ((W)(w))->active |
962 | #define ev_active(w) ((W)(w))->active |
370 | #define ev_at(w) ((WT)(w))->at |
963 | #define ev_at(w) ((WT)(w))->at |
371 | |
964 | |
|
|
965 | #if EV_USE_REALTIME |
|
|
966 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
967 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
968 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
969 | #endif |
|
|
970 | |
372 | #if EV_USE_MONOTONIC |
971 | #if EV_USE_MONOTONIC |
373 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
374 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
375 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
972 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
973 | #endif |
|
|
974 | |
|
|
975 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
976 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
977 | #endif |
|
|
978 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
979 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
980 | #endif |
|
|
981 | #ifndef EV_WIN32_CLOSE_FD |
|
|
982 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
376 | #endif |
983 | #endif |
377 | |
984 | |
378 | #ifdef _WIN32 |
985 | #ifdef _WIN32 |
379 | # include "ev_win32.c" |
986 | # include "ev_win32.c" |
380 | #endif |
987 | #endif |
381 | |
988 | |
382 | /*****************************************************************************/ |
989 | /*****************************************************************************/ |
383 | |
990 | |
|
|
991 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
992 | |
|
|
993 | #if EV_USE_FLOOR |
|
|
994 | # include <math.h> |
|
|
995 | # define ev_floor(v) floor (v) |
|
|
996 | #else |
|
|
997 | |
|
|
998 | #include <float.h> |
|
|
999 | |
|
|
1000 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1001 | static ev_tstamp noinline |
|
|
1002 | ev_floor (ev_tstamp v) |
|
|
1003 | { |
|
|
1004 | /* the choice of shift factor is not terribly important */ |
|
|
1005 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1006 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1007 | #else |
|
|
1008 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1009 | #endif |
|
|
1010 | |
|
|
1011 | /* argument too large for an unsigned long? */ |
|
|
1012 | if (expect_false (v >= shift)) |
|
|
1013 | { |
|
|
1014 | ev_tstamp f; |
|
|
1015 | |
|
|
1016 | if (v == v - 1.) |
|
|
1017 | return v; /* very large number */ |
|
|
1018 | |
|
|
1019 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1020 | return f + ev_floor (v - f); |
|
|
1021 | } |
|
|
1022 | |
|
|
1023 | /* special treatment for negative args? */ |
|
|
1024 | if (expect_false (v < 0.)) |
|
|
1025 | { |
|
|
1026 | ev_tstamp f = -ev_floor (-v); |
|
|
1027 | |
|
|
1028 | return f - (f == v ? 0 : 1); |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | /* fits into an unsigned long */ |
|
|
1032 | return (unsigned long)v; |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | #endif |
|
|
1036 | |
|
|
1037 | /*****************************************************************************/ |
|
|
1038 | |
|
|
1039 | #ifdef __linux |
|
|
1040 | # include <sys/utsname.h> |
|
|
1041 | #endif |
|
|
1042 | |
|
|
1043 | static unsigned int noinline ecb_cold |
|
|
1044 | ev_linux_version (void) |
|
|
1045 | { |
|
|
1046 | #ifdef __linux |
|
|
1047 | unsigned int v = 0; |
|
|
1048 | struct utsname buf; |
|
|
1049 | int i; |
|
|
1050 | char *p = buf.release; |
|
|
1051 | |
|
|
1052 | if (uname (&buf)) |
|
|
1053 | return 0; |
|
|
1054 | |
|
|
1055 | for (i = 3+1; --i; ) |
|
|
1056 | { |
|
|
1057 | unsigned int c = 0; |
|
|
1058 | |
|
|
1059 | for (;;) |
|
|
1060 | { |
|
|
1061 | if (*p >= '0' && *p <= '9') |
|
|
1062 | c = c * 10 + *p++ - '0'; |
|
|
1063 | else |
|
|
1064 | { |
|
|
1065 | p += *p == '.'; |
|
|
1066 | break; |
|
|
1067 | } |
|
|
1068 | } |
|
|
1069 | |
|
|
1070 | v = (v << 8) | c; |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | return v; |
|
|
1074 | #else |
|
|
1075 | return 0; |
|
|
1076 | #endif |
|
|
1077 | } |
|
|
1078 | |
|
|
1079 | /*****************************************************************************/ |
|
|
1080 | |
|
|
1081 | #if EV_AVOID_STDIO |
|
|
1082 | static void noinline ecb_cold |
|
|
1083 | ev_printerr (const char *msg) |
|
|
1084 | { |
|
|
1085 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1086 | } |
|
|
1087 | #endif |
|
|
1088 | |
384 | static void (*syserr_cb)(const char *msg); |
1089 | static void (*syserr_cb)(const char *msg); |
385 | |
1090 | |
386 | void |
1091 | void ecb_cold |
387 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1092 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
388 | { |
1093 | { |
389 | syserr_cb = cb; |
1094 | syserr_cb = cb; |
390 | } |
1095 | } |
391 | |
1096 | |
392 | static void noinline |
1097 | static void noinline ecb_cold |
393 | ev_syserr (const char *msg) |
1098 | ev_syserr (const char *msg) |
394 | { |
1099 | { |
395 | if (!msg) |
1100 | if (!msg) |
396 | msg = "(libev) system error"; |
1101 | msg = "(libev) system error"; |
397 | |
1102 | |
398 | if (syserr_cb) |
1103 | if (syserr_cb) |
399 | syserr_cb (msg); |
1104 | syserr_cb (msg); |
400 | else |
1105 | else |
401 | { |
1106 | { |
|
|
1107 | #if EV_AVOID_STDIO |
|
|
1108 | ev_printerr (msg); |
|
|
1109 | ev_printerr (": "); |
|
|
1110 | ev_printerr (strerror (errno)); |
|
|
1111 | ev_printerr ("\n"); |
|
|
1112 | #else |
402 | perror (msg); |
1113 | perror (msg); |
|
|
1114 | #endif |
403 | abort (); |
1115 | abort (); |
404 | } |
1116 | } |
405 | } |
1117 | } |
406 | |
1118 | |
407 | static void * |
1119 | static void * |
408 | ev_realloc_emul (void *ptr, long size) |
1120 | ev_realloc_emul (void *ptr, long size) |
409 | { |
1121 | { |
|
|
1122 | #if __GLIBC__ |
|
|
1123 | return realloc (ptr, size); |
|
|
1124 | #else |
410 | /* some systems, notably openbsd and darwin, fail to properly |
1125 | /* some systems, notably openbsd and darwin, fail to properly |
411 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1126 | * implement realloc (x, 0) (as required by both ansi c-89 and |
412 | * the single unix specification, so work around them here. |
1127 | * the single unix specification, so work around them here. |
413 | */ |
1128 | */ |
414 | |
1129 | |
415 | if (size) |
1130 | if (size) |
416 | return realloc (ptr, size); |
1131 | return realloc (ptr, size); |
417 | |
1132 | |
418 | free (ptr); |
1133 | free (ptr); |
419 | return 0; |
1134 | return 0; |
|
|
1135 | #endif |
420 | } |
1136 | } |
421 | |
1137 | |
422 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1138 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
423 | |
1139 | |
424 | void |
1140 | void ecb_cold |
425 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1141 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
426 | { |
1142 | { |
427 | alloc = cb; |
1143 | alloc = cb; |
428 | } |
1144 | } |
429 | |
1145 | |
… | |
… | |
432 | { |
1148 | { |
433 | ptr = alloc (ptr, size); |
1149 | ptr = alloc (ptr, size); |
434 | |
1150 | |
435 | if (!ptr && size) |
1151 | if (!ptr && size) |
436 | { |
1152 | { |
|
|
1153 | #if EV_AVOID_STDIO |
|
|
1154 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1155 | #else |
437 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1156 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1157 | #endif |
438 | abort (); |
1158 | abort (); |
439 | } |
1159 | } |
440 | |
1160 | |
441 | return ptr; |
1161 | return ptr; |
442 | } |
1162 | } |
… | |
… | |
444 | #define ev_malloc(size) ev_realloc (0, (size)) |
1164 | #define ev_malloc(size) ev_realloc (0, (size)) |
445 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1165 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
446 | |
1166 | |
447 | /*****************************************************************************/ |
1167 | /*****************************************************************************/ |
448 | |
1168 | |
|
|
1169 | /* set in reify when reification needed */ |
|
|
1170 | #define EV_ANFD_REIFY 1 |
|
|
1171 | |
|
|
1172 | /* file descriptor info structure */ |
449 | typedef struct |
1173 | typedef struct |
450 | { |
1174 | { |
451 | WL head; |
1175 | WL head; |
452 | unsigned char events; |
1176 | unsigned char events; /* the events watched for */ |
453 | unsigned char reify; |
1177 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
454 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1178 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
455 | unsigned char unused; |
1179 | unsigned char unused; |
456 | #if EV_USE_EPOLL |
1180 | #if EV_USE_EPOLL |
457 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1181 | unsigned int egen; /* generation counter to counter epoll bugs */ |
458 | #endif |
1182 | #endif |
459 | #if EV_SELECT_IS_WINSOCKET |
1183 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
460 | SOCKET handle; |
1184 | SOCKET handle; |
461 | #endif |
1185 | #endif |
|
|
1186 | #if EV_USE_IOCP |
|
|
1187 | OVERLAPPED or, ow; |
|
|
1188 | #endif |
462 | } ANFD; |
1189 | } ANFD; |
463 | |
1190 | |
|
|
1191 | /* stores the pending event set for a given watcher */ |
464 | typedef struct |
1192 | typedef struct |
465 | { |
1193 | { |
466 | W w; |
1194 | W w; |
467 | int events; |
1195 | int events; /* the pending event set for the given watcher */ |
468 | } ANPENDING; |
1196 | } ANPENDING; |
469 | |
1197 | |
470 | #if EV_USE_INOTIFY |
1198 | #if EV_USE_INOTIFY |
471 | /* hash table entry per inotify-id */ |
1199 | /* hash table entry per inotify-id */ |
472 | typedef struct |
1200 | typedef struct |
… | |
… | |
475 | } ANFS; |
1203 | } ANFS; |
476 | #endif |
1204 | #endif |
477 | |
1205 | |
478 | /* Heap Entry */ |
1206 | /* Heap Entry */ |
479 | #if EV_HEAP_CACHE_AT |
1207 | #if EV_HEAP_CACHE_AT |
|
|
1208 | /* a heap element */ |
480 | typedef struct { |
1209 | typedef struct { |
481 | ev_tstamp at; |
1210 | ev_tstamp at; |
482 | WT w; |
1211 | WT w; |
483 | } ANHE; |
1212 | } ANHE; |
484 | |
1213 | |
485 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
1214 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
486 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
1215 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
487 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
1216 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
488 | #else |
1217 | #else |
|
|
1218 | /* a heap element */ |
489 | typedef WT ANHE; |
1219 | typedef WT ANHE; |
490 | |
1220 | |
491 | #define ANHE_w(he) (he) |
1221 | #define ANHE_w(he) (he) |
492 | #define ANHE_at(he) (he)->at |
1222 | #define ANHE_at(he) (he)->at |
493 | #define ANHE_at_cache(he) |
1223 | #define ANHE_at_cache(he) |
… | |
… | |
504 | #undef VAR |
1234 | #undef VAR |
505 | }; |
1235 | }; |
506 | #include "ev_wrap.h" |
1236 | #include "ev_wrap.h" |
507 | |
1237 | |
508 | static struct ev_loop default_loop_struct; |
1238 | static struct ev_loop default_loop_struct; |
509 | struct ev_loop *ev_default_loop_ptr; |
1239 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
510 | |
1240 | |
511 | #else |
1241 | #else |
512 | |
1242 | |
513 | ev_tstamp ev_rt_now; |
1243 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
514 | #define VAR(name,decl) static decl; |
1244 | #define VAR(name,decl) static decl; |
515 | #include "ev_vars.h" |
1245 | #include "ev_vars.h" |
516 | #undef VAR |
1246 | #undef VAR |
517 | |
1247 | |
518 | static int ev_default_loop_ptr; |
1248 | static int ev_default_loop_ptr; |
519 | |
1249 | |
520 | #endif |
1250 | #endif |
521 | |
1251 | |
|
|
1252 | #if EV_FEATURE_API |
|
|
1253 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1254 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1255 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1256 | #else |
|
|
1257 | # define EV_RELEASE_CB (void)0 |
|
|
1258 | # define EV_ACQUIRE_CB (void)0 |
|
|
1259 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1260 | #endif |
|
|
1261 | |
|
|
1262 | #define EVBREAK_RECURSE 0x80 |
|
|
1263 | |
522 | /*****************************************************************************/ |
1264 | /*****************************************************************************/ |
523 | |
1265 | |
|
|
1266 | #ifndef EV_HAVE_EV_TIME |
524 | ev_tstamp |
1267 | ev_tstamp |
525 | ev_time (void) |
1268 | ev_time (void) |
526 | { |
1269 | { |
527 | #if EV_USE_REALTIME |
1270 | #if EV_USE_REALTIME |
|
|
1271 | if (expect_true (have_realtime)) |
|
|
1272 | { |
528 | struct timespec ts; |
1273 | struct timespec ts; |
529 | clock_gettime (CLOCK_REALTIME, &ts); |
1274 | clock_gettime (CLOCK_REALTIME, &ts); |
530 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1275 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
531 | #else |
1276 | } |
|
|
1277 | #endif |
|
|
1278 | |
532 | struct timeval tv; |
1279 | struct timeval tv; |
533 | gettimeofday (&tv, 0); |
1280 | gettimeofday (&tv, 0); |
534 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1281 | return tv.tv_sec + tv.tv_usec * 1e-6; |
535 | #endif |
|
|
536 | } |
1282 | } |
|
|
1283 | #endif |
537 | |
1284 | |
538 | ev_tstamp inline_size |
1285 | inline_size ev_tstamp |
539 | get_clock (void) |
1286 | get_clock (void) |
540 | { |
1287 | { |
541 | #if EV_USE_MONOTONIC |
1288 | #if EV_USE_MONOTONIC |
542 | if (expect_true (have_monotonic)) |
1289 | if (expect_true (have_monotonic)) |
543 | { |
1290 | { |
… | |
… | |
564 | if (delay > 0.) |
1311 | if (delay > 0.) |
565 | { |
1312 | { |
566 | #if EV_USE_NANOSLEEP |
1313 | #if EV_USE_NANOSLEEP |
567 | struct timespec ts; |
1314 | struct timespec ts; |
568 | |
1315 | |
569 | ts.tv_sec = (time_t)delay; |
1316 | EV_TS_SET (ts, delay); |
570 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
571 | |
|
|
572 | nanosleep (&ts, 0); |
1317 | nanosleep (&ts, 0); |
573 | #elif defined(_WIN32) |
1318 | #elif defined(_WIN32) |
574 | Sleep ((unsigned long)(delay * 1e3)); |
1319 | Sleep ((unsigned long)(delay * 1e3)); |
575 | #else |
1320 | #else |
576 | struct timeval tv; |
1321 | struct timeval tv; |
577 | |
1322 | |
578 | tv.tv_sec = (time_t)delay; |
|
|
579 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
580 | |
|
|
581 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1323 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
582 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
1324 | /* something not guaranteed by newer posix versions, but guaranteed */ |
583 | /* by older ones */ |
1325 | /* by older ones */ |
|
|
1326 | EV_TV_SET (tv, delay); |
584 | select (0, 0, 0, 0, &tv); |
1327 | select (0, 0, 0, 0, &tv); |
585 | #endif |
1328 | #endif |
586 | } |
1329 | } |
587 | } |
1330 | } |
588 | |
1331 | |
589 | /*****************************************************************************/ |
1332 | /*****************************************************************************/ |
590 | |
1333 | |
591 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1334 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
592 | |
1335 | |
593 | int inline_size |
1336 | /* find a suitable new size for the given array, */ |
|
|
1337 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1338 | inline_size int |
594 | array_nextsize (int elem, int cur, int cnt) |
1339 | array_nextsize (int elem, int cur, int cnt) |
595 | { |
1340 | { |
596 | int ncur = cur + 1; |
1341 | int ncur = cur + 1; |
597 | |
1342 | |
598 | do |
1343 | do |
599 | ncur <<= 1; |
1344 | ncur <<= 1; |
600 | while (cnt > ncur); |
1345 | while (cnt > ncur); |
601 | |
1346 | |
602 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1347 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
603 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1348 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
604 | { |
1349 | { |
605 | ncur *= elem; |
1350 | ncur *= elem; |
606 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1351 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
607 | ncur = ncur - sizeof (void *) * 4; |
1352 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
609 | } |
1354 | } |
610 | |
1355 | |
611 | return ncur; |
1356 | return ncur; |
612 | } |
1357 | } |
613 | |
1358 | |
614 | static noinline void * |
1359 | static void * noinline ecb_cold |
615 | array_realloc (int elem, void *base, int *cur, int cnt) |
1360 | array_realloc (int elem, void *base, int *cur, int cnt) |
616 | { |
1361 | { |
617 | *cur = array_nextsize (elem, *cur, cnt); |
1362 | *cur = array_nextsize (elem, *cur, cnt); |
618 | return ev_realloc (base, elem * *cur); |
1363 | return ev_realloc (base, elem * *cur); |
619 | } |
1364 | } |
… | |
… | |
622 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1367 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
623 | |
1368 | |
624 | #define array_needsize(type,base,cur,cnt,init) \ |
1369 | #define array_needsize(type,base,cur,cnt,init) \ |
625 | if (expect_false ((cnt) > (cur))) \ |
1370 | if (expect_false ((cnt) > (cur))) \ |
626 | { \ |
1371 | { \ |
627 | int ocur_ = (cur); \ |
1372 | int ecb_unused ocur_ = (cur); \ |
628 | (base) = (type *)array_realloc \ |
1373 | (base) = (type *)array_realloc \ |
629 | (sizeof (type), (base), &(cur), (cnt)); \ |
1374 | (sizeof (type), (base), &(cur), (cnt)); \ |
630 | init ((base) + (ocur_), (cur) - ocur_); \ |
1375 | init ((base) + (ocur_), (cur) - ocur_); \ |
631 | } |
1376 | } |
632 | |
1377 | |
… | |
… | |
639 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1384 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
640 | } |
1385 | } |
641 | #endif |
1386 | #endif |
642 | |
1387 | |
643 | #define array_free(stem, idx) \ |
1388 | #define array_free(stem, idx) \ |
644 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1389 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
645 | |
1390 | |
646 | /*****************************************************************************/ |
1391 | /*****************************************************************************/ |
|
|
1392 | |
|
|
1393 | /* dummy callback for pending events */ |
|
|
1394 | static void noinline |
|
|
1395 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1396 | { |
|
|
1397 | } |
647 | |
1398 | |
648 | void noinline |
1399 | void noinline |
649 | ev_feed_event (EV_P_ void *w, int revents) |
1400 | ev_feed_event (EV_P_ void *w, int revents) |
650 | { |
1401 | { |
651 | W w_ = (W)w; |
1402 | W w_ = (W)w; |
… | |
… | |
660 | pendings [pri][w_->pending - 1].w = w_; |
1411 | pendings [pri][w_->pending - 1].w = w_; |
661 | pendings [pri][w_->pending - 1].events = revents; |
1412 | pendings [pri][w_->pending - 1].events = revents; |
662 | } |
1413 | } |
663 | } |
1414 | } |
664 | |
1415 | |
665 | void inline_speed |
1416 | inline_speed void |
|
|
1417 | feed_reverse (EV_P_ W w) |
|
|
1418 | { |
|
|
1419 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1420 | rfeeds [rfeedcnt++] = w; |
|
|
1421 | } |
|
|
1422 | |
|
|
1423 | inline_size void |
|
|
1424 | feed_reverse_done (EV_P_ int revents) |
|
|
1425 | { |
|
|
1426 | do |
|
|
1427 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1428 | while (rfeedcnt); |
|
|
1429 | } |
|
|
1430 | |
|
|
1431 | inline_speed void |
666 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1432 | queue_events (EV_P_ W *events, int eventcnt, int type) |
667 | { |
1433 | { |
668 | int i; |
1434 | int i; |
669 | |
1435 | |
670 | for (i = 0; i < eventcnt; ++i) |
1436 | for (i = 0; i < eventcnt; ++i) |
671 | ev_feed_event (EV_A_ events [i], type); |
1437 | ev_feed_event (EV_A_ events [i], type); |
672 | } |
1438 | } |
673 | |
1439 | |
674 | /*****************************************************************************/ |
1440 | /*****************************************************************************/ |
675 | |
1441 | |
676 | void inline_speed |
1442 | inline_speed void |
677 | fd_event (EV_P_ int fd, int revents) |
1443 | fd_event_nocheck (EV_P_ int fd, int revents) |
678 | { |
1444 | { |
679 | ANFD *anfd = anfds + fd; |
1445 | ANFD *anfd = anfds + fd; |
680 | ev_io *w; |
1446 | ev_io *w; |
681 | |
1447 | |
682 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1448 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
686 | if (ev) |
1452 | if (ev) |
687 | ev_feed_event (EV_A_ (W)w, ev); |
1453 | ev_feed_event (EV_A_ (W)w, ev); |
688 | } |
1454 | } |
689 | } |
1455 | } |
690 | |
1456 | |
|
|
1457 | /* do not submit kernel events for fds that have reify set */ |
|
|
1458 | /* because that means they changed while we were polling for new events */ |
|
|
1459 | inline_speed void |
|
|
1460 | fd_event (EV_P_ int fd, int revents) |
|
|
1461 | { |
|
|
1462 | ANFD *anfd = anfds + fd; |
|
|
1463 | |
|
|
1464 | if (expect_true (!anfd->reify)) |
|
|
1465 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1466 | } |
|
|
1467 | |
691 | void |
1468 | void |
692 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1469 | ev_feed_fd_event (EV_P_ int fd, int revents) |
693 | { |
1470 | { |
694 | if (fd >= 0 && fd < anfdmax) |
1471 | if (fd >= 0 && fd < anfdmax) |
695 | fd_event (EV_A_ fd, revents); |
1472 | fd_event_nocheck (EV_A_ fd, revents); |
696 | } |
1473 | } |
697 | |
1474 | |
698 | void inline_size |
1475 | /* make sure the external fd watch events are in-sync */ |
|
|
1476 | /* with the kernel/libev internal state */ |
|
|
1477 | inline_size void |
699 | fd_reify (EV_P) |
1478 | fd_reify (EV_P) |
700 | { |
1479 | { |
701 | int i; |
1480 | int i; |
|
|
1481 | |
|
|
1482 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1483 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1484 | { |
|
|
1485 | int fd = fdchanges [i]; |
|
|
1486 | ANFD *anfd = anfds + fd; |
|
|
1487 | |
|
|
1488 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1489 | { |
|
|
1490 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1491 | |
|
|
1492 | if (handle != anfd->handle) |
|
|
1493 | { |
|
|
1494 | unsigned long arg; |
|
|
1495 | |
|
|
1496 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1497 | |
|
|
1498 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1499 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1500 | anfd->events = 0; |
|
|
1501 | anfd->handle = handle; |
|
|
1502 | } |
|
|
1503 | } |
|
|
1504 | } |
|
|
1505 | #endif |
702 | |
1506 | |
703 | for (i = 0; i < fdchangecnt; ++i) |
1507 | for (i = 0; i < fdchangecnt; ++i) |
704 | { |
1508 | { |
705 | int fd = fdchanges [i]; |
1509 | int fd = fdchanges [i]; |
706 | ANFD *anfd = anfds + fd; |
1510 | ANFD *anfd = anfds + fd; |
707 | ev_io *w; |
1511 | ev_io *w; |
708 | |
1512 | |
709 | unsigned char events = 0; |
1513 | unsigned char o_events = anfd->events; |
|
|
1514 | unsigned char o_reify = anfd->reify; |
710 | |
1515 | |
711 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1516 | anfd->reify = 0; |
712 | events |= (unsigned char)w->events; |
|
|
713 | |
1517 | |
714 | #if EV_SELECT_IS_WINSOCKET |
1518 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
715 | if (events) |
|
|
716 | { |
1519 | { |
717 | unsigned long arg; |
1520 | anfd->events = 0; |
718 | #ifdef EV_FD_TO_WIN32_HANDLE |
1521 | |
719 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1522 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
720 | #else |
1523 | anfd->events |= (unsigned char)w->events; |
721 | anfd->handle = _get_osfhandle (fd); |
1524 | |
722 | #endif |
1525 | if (o_events != anfd->events) |
723 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1526 | o_reify = EV__IOFDSET; /* actually |= */ |
724 | } |
1527 | } |
725 | #endif |
|
|
726 | |
1528 | |
727 | { |
1529 | if (o_reify & EV__IOFDSET) |
728 | unsigned char o_events = anfd->events; |
|
|
729 | unsigned char o_reify = anfd->reify; |
|
|
730 | |
|
|
731 | anfd->reify = 0; |
|
|
732 | anfd->events = events; |
|
|
733 | |
|
|
734 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
735 | backend_modify (EV_A_ fd, o_events, events); |
1530 | backend_modify (EV_A_ fd, o_events, anfd->events); |
736 | } |
|
|
737 | } |
1531 | } |
738 | |
1532 | |
739 | fdchangecnt = 0; |
1533 | fdchangecnt = 0; |
740 | } |
1534 | } |
741 | |
1535 | |
742 | void inline_size |
1536 | /* something about the given fd changed */ |
|
|
1537 | inline_size void |
743 | fd_change (EV_P_ int fd, int flags) |
1538 | fd_change (EV_P_ int fd, int flags) |
744 | { |
1539 | { |
745 | unsigned char reify = anfds [fd].reify; |
1540 | unsigned char reify = anfds [fd].reify; |
746 | anfds [fd].reify |= flags; |
1541 | anfds [fd].reify |= flags; |
747 | |
1542 | |
… | |
… | |
751 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1546 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
752 | fdchanges [fdchangecnt - 1] = fd; |
1547 | fdchanges [fdchangecnt - 1] = fd; |
753 | } |
1548 | } |
754 | } |
1549 | } |
755 | |
1550 | |
756 | void inline_speed |
1551 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1552 | inline_speed void ecb_cold |
757 | fd_kill (EV_P_ int fd) |
1553 | fd_kill (EV_P_ int fd) |
758 | { |
1554 | { |
759 | ev_io *w; |
1555 | ev_io *w; |
760 | |
1556 | |
761 | while ((w = (ev_io *)anfds [fd].head)) |
1557 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
763 | ev_io_stop (EV_A_ w); |
1559 | ev_io_stop (EV_A_ w); |
764 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1560 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
765 | } |
1561 | } |
766 | } |
1562 | } |
767 | |
1563 | |
768 | int inline_size |
1564 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1565 | inline_size int ecb_cold |
769 | fd_valid (int fd) |
1566 | fd_valid (int fd) |
770 | { |
1567 | { |
771 | #ifdef _WIN32 |
1568 | #ifdef _WIN32 |
772 | return _get_osfhandle (fd) != -1; |
1569 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
773 | #else |
1570 | #else |
774 | return fcntl (fd, F_GETFD) != -1; |
1571 | return fcntl (fd, F_GETFD) != -1; |
775 | #endif |
1572 | #endif |
776 | } |
1573 | } |
777 | |
1574 | |
778 | /* called on EBADF to verify fds */ |
1575 | /* called on EBADF to verify fds */ |
779 | static void noinline |
1576 | static void noinline ecb_cold |
780 | fd_ebadf (EV_P) |
1577 | fd_ebadf (EV_P) |
781 | { |
1578 | { |
782 | int fd; |
1579 | int fd; |
783 | |
1580 | |
784 | for (fd = 0; fd < anfdmax; ++fd) |
1581 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
786 | if (!fd_valid (fd) && errno == EBADF) |
1583 | if (!fd_valid (fd) && errno == EBADF) |
787 | fd_kill (EV_A_ fd); |
1584 | fd_kill (EV_A_ fd); |
788 | } |
1585 | } |
789 | |
1586 | |
790 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1587 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
791 | static void noinline |
1588 | static void noinline ecb_cold |
792 | fd_enomem (EV_P) |
1589 | fd_enomem (EV_P) |
793 | { |
1590 | { |
794 | int fd; |
1591 | int fd; |
795 | |
1592 | |
796 | for (fd = anfdmax; fd--; ) |
1593 | for (fd = anfdmax; fd--; ) |
797 | if (anfds [fd].events) |
1594 | if (anfds [fd].events) |
798 | { |
1595 | { |
799 | fd_kill (EV_A_ fd); |
1596 | fd_kill (EV_A_ fd); |
800 | return; |
1597 | break; |
801 | } |
1598 | } |
802 | } |
1599 | } |
803 | |
1600 | |
804 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1601 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
805 | static void noinline |
1602 | static void noinline |
… | |
… | |
810 | for (fd = 0; fd < anfdmax; ++fd) |
1607 | for (fd = 0; fd < anfdmax; ++fd) |
811 | if (anfds [fd].events) |
1608 | if (anfds [fd].events) |
812 | { |
1609 | { |
813 | anfds [fd].events = 0; |
1610 | anfds [fd].events = 0; |
814 | anfds [fd].emask = 0; |
1611 | anfds [fd].emask = 0; |
815 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1612 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
816 | } |
1613 | } |
817 | } |
1614 | } |
818 | |
1615 | |
|
|
1616 | /* used to prepare libev internal fd's */ |
|
|
1617 | /* this is not fork-safe */ |
|
|
1618 | inline_speed void |
|
|
1619 | fd_intern (int fd) |
|
|
1620 | { |
|
|
1621 | #ifdef _WIN32 |
|
|
1622 | unsigned long arg = 1; |
|
|
1623 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1624 | #else |
|
|
1625 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1626 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1627 | #endif |
|
|
1628 | } |
|
|
1629 | |
819 | /*****************************************************************************/ |
1630 | /*****************************************************************************/ |
820 | |
1631 | |
821 | /* |
1632 | /* |
822 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1633 | * the heap functions want a real array index. array index 0 is guaranteed to not |
823 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1634 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
824 | * the branching factor of the d-tree. |
1635 | * the branching factor of the d-tree. |
825 | */ |
1636 | */ |
826 | |
1637 | |
827 | /* |
1638 | /* |
… | |
… | |
836 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1647 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
837 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1648 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
838 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1649 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
839 | |
1650 | |
840 | /* away from the root */ |
1651 | /* away from the root */ |
841 | void inline_speed |
1652 | inline_speed void |
842 | downheap (ANHE *heap, int N, int k) |
1653 | downheap (ANHE *heap, int N, int k) |
843 | { |
1654 | { |
844 | ANHE he = heap [k]; |
1655 | ANHE he = heap [k]; |
845 | ANHE *E = heap + N + HEAP0; |
1656 | ANHE *E = heap + N + HEAP0; |
846 | |
1657 | |
… | |
… | |
886 | #define HEAP0 1 |
1697 | #define HEAP0 1 |
887 | #define HPARENT(k) ((k) >> 1) |
1698 | #define HPARENT(k) ((k) >> 1) |
888 | #define UPHEAP_DONE(p,k) (!(p)) |
1699 | #define UPHEAP_DONE(p,k) (!(p)) |
889 | |
1700 | |
890 | /* away from the root */ |
1701 | /* away from the root */ |
891 | void inline_speed |
1702 | inline_speed void |
892 | downheap (ANHE *heap, int N, int k) |
1703 | downheap (ANHE *heap, int N, int k) |
893 | { |
1704 | { |
894 | ANHE he = heap [k]; |
1705 | ANHE he = heap [k]; |
895 | |
1706 | |
896 | for (;;) |
1707 | for (;;) |
897 | { |
1708 | { |
898 | int c = k << 1; |
1709 | int c = k << 1; |
899 | |
1710 | |
900 | if (c > N + HEAP0 - 1) |
1711 | if (c >= N + HEAP0) |
901 | break; |
1712 | break; |
902 | |
1713 | |
903 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1714 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
904 | ? 1 : 0; |
1715 | ? 1 : 0; |
905 | |
1716 | |
… | |
… | |
916 | ev_active (ANHE_w (he)) = k; |
1727 | ev_active (ANHE_w (he)) = k; |
917 | } |
1728 | } |
918 | #endif |
1729 | #endif |
919 | |
1730 | |
920 | /* towards the root */ |
1731 | /* towards the root */ |
921 | void inline_speed |
1732 | inline_speed void |
922 | upheap (ANHE *heap, int k) |
1733 | upheap (ANHE *heap, int k) |
923 | { |
1734 | { |
924 | ANHE he = heap [k]; |
1735 | ANHE he = heap [k]; |
925 | |
1736 | |
926 | for (;;) |
1737 | for (;;) |
… | |
… | |
937 | |
1748 | |
938 | heap [k] = he; |
1749 | heap [k] = he; |
939 | ev_active (ANHE_w (he)) = k; |
1750 | ev_active (ANHE_w (he)) = k; |
940 | } |
1751 | } |
941 | |
1752 | |
942 | void inline_size |
1753 | /* move an element suitably so it is in a correct place */ |
|
|
1754 | inline_size void |
943 | adjustheap (ANHE *heap, int N, int k) |
1755 | adjustheap (ANHE *heap, int N, int k) |
944 | { |
1756 | { |
945 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1757 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
946 | upheap (heap, k); |
1758 | upheap (heap, k); |
947 | else |
1759 | else |
948 | downheap (heap, N, k); |
1760 | downheap (heap, N, k); |
949 | } |
1761 | } |
950 | |
1762 | |
951 | /* rebuild the heap: this function is used only once and executed rarely */ |
1763 | /* rebuild the heap: this function is used only once and executed rarely */ |
952 | void inline_size |
1764 | inline_size void |
953 | reheap (ANHE *heap, int N) |
1765 | reheap (ANHE *heap, int N) |
954 | { |
1766 | { |
955 | int i; |
1767 | int i; |
956 | |
1768 | |
957 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1769 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
960 | upheap (heap, i + HEAP0); |
1772 | upheap (heap, i + HEAP0); |
961 | } |
1773 | } |
962 | |
1774 | |
963 | /*****************************************************************************/ |
1775 | /*****************************************************************************/ |
964 | |
1776 | |
|
|
1777 | /* associate signal watchers to a signal signal */ |
965 | typedef struct |
1778 | typedef struct |
966 | { |
1779 | { |
|
|
1780 | EV_ATOMIC_T pending; |
|
|
1781 | #if EV_MULTIPLICITY |
|
|
1782 | EV_P; |
|
|
1783 | #endif |
967 | WL head; |
1784 | WL head; |
968 | EV_ATOMIC_T gotsig; |
|
|
969 | } ANSIG; |
1785 | } ANSIG; |
970 | |
1786 | |
971 | static ANSIG *signals; |
1787 | static ANSIG signals [EV_NSIG - 1]; |
972 | static int signalmax; |
|
|
973 | |
|
|
974 | static EV_ATOMIC_T gotsig; |
|
|
975 | |
1788 | |
976 | /*****************************************************************************/ |
1789 | /*****************************************************************************/ |
977 | |
1790 | |
978 | void inline_speed |
1791 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
979 | fd_intern (int fd) |
|
|
980 | { |
|
|
981 | #ifdef _WIN32 |
|
|
982 | unsigned long arg = 1; |
|
|
983 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
984 | #else |
|
|
985 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
986 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
987 | #endif |
|
|
988 | } |
|
|
989 | |
1792 | |
990 | static void noinline |
1793 | static void noinline ecb_cold |
991 | evpipe_init (EV_P) |
1794 | evpipe_init (EV_P) |
992 | { |
1795 | { |
993 | if (!ev_is_active (&pipeev)) |
1796 | if (!ev_is_active (&pipe_w)) |
994 | { |
1797 | { |
995 | #if EV_USE_EVENTFD |
1798 | # if EV_USE_EVENTFD |
|
|
1799 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1800 | if (evfd < 0 && errno == EINVAL) |
996 | if ((evfd = eventfd (0, 0)) >= 0) |
1801 | evfd = eventfd (0, 0); |
|
|
1802 | |
|
|
1803 | if (evfd >= 0) |
997 | { |
1804 | { |
998 | evpipe [0] = -1; |
1805 | evpipe [0] = -1; |
999 | fd_intern (evfd); |
1806 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1000 | ev_io_set (&pipeev, evfd, EV_READ); |
1807 | ev_io_set (&pipe_w, evfd, EV_READ); |
1001 | } |
1808 | } |
1002 | else |
1809 | else |
1003 | #endif |
1810 | # endif |
1004 | { |
1811 | { |
1005 | while (pipe (evpipe)) |
1812 | while (pipe (evpipe)) |
1006 | ev_syserr ("(libev) error creating signal/async pipe"); |
1813 | ev_syserr ("(libev) error creating signal/async pipe"); |
1007 | |
1814 | |
1008 | fd_intern (evpipe [0]); |
1815 | fd_intern (evpipe [0]); |
1009 | fd_intern (evpipe [1]); |
1816 | fd_intern (evpipe [1]); |
1010 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1817 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1011 | } |
1818 | } |
1012 | |
1819 | |
1013 | ev_io_start (EV_A_ &pipeev); |
1820 | ev_io_start (EV_A_ &pipe_w); |
1014 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1821 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1015 | } |
1822 | } |
1016 | } |
1823 | } |
1017 | |
1824 | |
1018 | void inline_size |
1825 | inline_speed void |
1019 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1826 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1020 | { |
1827 | { |
1021 | if (!*flag) |
1828 | if (expect_true (*flag)) |
|
|
1829 | return; |
|
|
1830 | |
|
|
1831 | *flag = 1; |
|
|
1832 | |
|
|
1833 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1834 | |
|
|
1835 | pipe_write_skipped = 1; |
|
|
1836 | |
|
|
1837 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1838 | |
|
|
1839 | if (pipe_write_wanted) |
1022 | { |
1840 | { |
|
|
1841 | int old_errno; |
|
|
1842 | |
|
|
1843 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1844 | |
1023 | int old_errno = errno; /* save errno because write might clobber it */ |
1845 | old_errno = errno; /* save errno because write will clobber it */ |
1024 | |
|
|
1025 | *flag = 1; |
|
|
1026 | |
1846 | |
1027 | #if EV_USE_EVENTFD |
1847 | #if EV_USE_EVENTFD |
1028 | if (evfd >= 0) |
1848 | if (evfd >= 0) |
1029 | { |
1849 | { |
1030 | uint64_t counter = 1; |
1850 | uint64_t counter = 1; |
1031 | write (evfd, &counter, sizeof (uint64_t)); |
1851 | write (evfd, &counter, sizeof (uint64_t)); |
1032 | } |
1852 | } |
1033 | else |
1853 | else |
1034 | #endif |
1854 | #endif |
|
|
1855 | { |
|
|
1856 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1857 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1858 | /* so when you think this write should be a send instead, please find out */ |
|
|
1859 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1860 | /* tell me. thank you. */ |
1035 | write (evpipe [1], &old_errno, 1); |
1861 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1862 | } |
1036 | |
1863 | |
1037 | errno = old_errno; |
1864 | errno = old_errno; |
1038 | } |
1865 | } |
1039 | } |
1866 | } |
1040 | |
1867 | |
|
|
1868 | /* called whenever the libev signal pipe */ |
|
|
1869 | /* got some events (signal, async) */ |
1041 | static void |
1870 | static void |
1042 | pipecb (EV_P_ ev_io *iow, int revents) |
1871 | pipecb (EV_P_ ev_io *iow, int revents) |
1043 | { |
1872 | { |
|
|
1873 | int i; |
|
|
1874 | |
|
|
1875 | if (revents & EV_READ) |
|
|
1876 | { |
1044 | #if EV_USE_EVENTFD |
1877 | #if EV_USE_EVENTFD |
1045 | if (evfd >= 0) |
1878 | if (evfd >= 0) |
1046 | { |
1879 | { |
1047 | uint64_t counter; |
1880 | uint64_t counter; |
1048 | read (evfd, &counter, sizeof (uint64_t)); |
1881 | read (evfd, &counter, sizeof (uint64_t)); |
1049 | } |
1882 | } |
1050 | else |
1883 | else |
1051 | #endif |
1884 | #endif |
1052 | { |
1885 | { |
1053 | char dummy; |
1886 | char dummy; |
|
|
1887 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1054 | read (evpipe [0], &dummy, 1); |
1888 | read (evpipe [0], &dummy, 1); |
|
|
1889 | } |
|
|
1890 | } |
|
|
1891 | |
|
|
1892 | pipe_write_skipped = 0; |
|
|
1893 | |
|
|
1894 | #if EV_SIGNAL_ENABLE |
|
|
1895 | if (sig_pending) |
1055 | } |
1896 | { |
|
|
1897 | sig_pending = 0; |
1056 | |
1898 | |
1057 | if (gotsig && ev_is_default_loop (EV_A)) |
1899 | for (i = EV_NSIG - 1; i--; ) |
1058 | { |
1900 | if (expect_false (signals [i].pending)) |
1059 | int signum; |
|
|
1060 | gotsig = 0; |
|
|
1061 | |
|
|
1062 | for (signum = signalmax; signum--; ) |
|
|
1063 | if (signals [signum].gotsig) |
|
|
1064 | ev_feed_signal_event (EV_A_ signum + 1); |
1901 | ev_feed_signal_event (EV_A_ i + 1); |
1065 | } |
1902 | } |
|
|
1903 | #endif |
1066 | |
1904 | |
1067 | #if EV_ASYNC_ENABLE |
1905 | #if EV_ASYNC_ENABLE |
1068 | if (gotasync) |
1906 | if (async_pending) |
1069 | { |
1907 | { |
1070 | int i; |
1908 | async_pending = 0; |
1071 | gotasync = 0; |
|
|
1072 | |
1909 | |
1073 | for (i = asynccnt; i--; ) |
1910 | for (i = asynccnt; i--; ) |
1074 | if (asyncs [i]->sent) |
1911 | if (asyncs [i]->sent) |
1075 | { |
1912 | { |
1076 | asyncs [i]->sent = 0; |
1913 | asyncs [i]->sent = 0; |
… | |
… | |
1080 | #endif |
1917 | #endif |
1081 | } |
1918 | } |
1082 | |
1919 | |
1083 | /*****************************************************************************/ |
1920 | /*****************************************************************************/ |
1084 | |
1921 | |
|
|
1922 | void |
|
|
1923 | ev_feed_signal (int signum) |
|
|
1924 | { |
|
|
1925 | #if EV_MULTIPLICITY |
|
|
1926 | EV_P = signals [signum - 1].loop; |
|
|
1927 | |
|
|
1928 | if (!EV_A) |
|
|
1929 | return; |
|
|
1930 | #endif |
|
|
1931 | |
|
|
1932 | if (!ev_active (&pipe_w)) |
|
|
1933 | return; |
|
|
1934 | |
|
|
1935 | signals [signum - 1].pending = 1; |
|
|
1936 | evpipe_write (EV_A_ &sig_pending); |
|
|
1937 | } |
|
|
1938 | |
1085 | static void |
1939 | static void |
1086 | ev_sighandler (int signum) |
1940 | ev_sighandler (int signum) |
1087 | { |
1941 | { |
1088 | #if EV_MULTIPLICITY |
|
|
1089 | struct ev_loop *loop = &default_loop_struct; |
|
|
1090 | #endif |
|
|
1091 | |
|
|
1092 | #if _WIN32 |
1942 | #ifdef _WIN32 |
1093 | signal (signum, ev_sighandler); |
1943 | signal (signum, ev_sighandler); |
1094 | #endif |
1944 | #endif |
1095 | |
1945 | |
1096 | signals [signum - 1].gotsig = 1; |
1946 | ev_feed_signal (signum); |
1097 | evpipe_write (EV_A_ &gotsig); |
|
|
1098 | } |
1947 | } |
1099 | |
1948 | |
1100 | void noinline |
1949 | void noinline |
1101 | ev_feed_signal_event (EV_P_ int signum) |
1950 | ev_feed_signal_event (EV_P_ int signum) |
1102 | { |
1951 | { |
1103 | WL w; |
1952 | WL w; |
1104 | |
1953 | |
|
|
1954 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1955 | return; |
|
|
1956 | |
|
|
1957 | --signum; |
|
|
1958 | |
1105 | #if EV_MULTIPLICITY |
1959 | #if EV_MULTIPLICITY |
1106 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1960 | /* it is permissible to try to feed a signal to the wrong loop */ |
1107 | #endif |
1961 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1108 | |
1962 | |
1109 | --signum; |
1963 | if (expect_false (signals [signum].loop != EV_A)) |
1110 | |
|
|
1111 | if (signum < 0 || signum >= signalmax) |
|
|
1112 | return; |
1964 | return; |
|
|
1965 | #endif |
1113 | |
1966 | |
1114 | signals [signum].gotsig = 0; |
1967 | signals [signum].pending = 0; |
1115 | |
1968 | |
1116 | for (w = signals [signum].head; w; w = w->next) |
1969 | for (w = signals [signum].head; w; w = w->next) |
1117 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1970 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1118 | } |
1971 | } |
1119 | |
1972 | |
|
|
1973 | #if EV_USE_SIGNALFD |
|
|
1974 | static void |
|
|
1975 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1976 | { |
|
|
1977 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1978 | |
|
|
1979 | for (;;) |
|
|
1980 | { |
|
|
1981 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1982 | |
|
|
1983 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1984 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1985 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1986 | |
|
|
1987 | if (res < (ssize_t)sizeof (si)) |
|
|
1988 | break; |
|
|
1989 | } |
|
|
1990 | } |
|
|
1991 | #endif |
|
|
1992 | |
|
|
1993 | #endif |
|
|
1994 | |
1120 | /*****************************************************************************/ |
1995 | /*****************************************************************************/ |
1121 | |
1996 | |
|
|
1997 | #if EV_CHILD_ENABLE |
1122 | static WL childs [EV_PID_HASHSIZE]; |
1998 | static WL childs [EV_PID_HASHSIZE]; |
1123 | |
|
|
1124 | #ifndef _WIN32 |
|
|
1125 | |
1999 | |
1126 | static ev_signal childev; |
2000 | static ev_signal childev; |
1127 | |
2001 | |
1128 | #ifndef WIFCONTINUED |
2002 | #ifndef WIFCONTINUED |
1129 | # define WIFCONTINUED(status) 0 |
2003 | # define WIFCONTINUED(status) 0 |
1130 | #endif |
2004 | #endif |
1131 | |
2005 | |
1132 | void inline_speed |
2006 | /* handle a single child status event */ |
|
|
2007 | inline_speed void |
1133 | child_reap (EV_P_ int chain, int pid, int status) |
2008 | child_reap (EV_P_ int chain, int pid, int status) |
1134 | { |
2009 | { |
1135 | ev_child *w; |
2010 | ev_child *w; |
1136 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2011 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1137 | |
2012 | |
1138 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2013 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1139 | { |
2014 | { |
1140 | if ((w->pid == pid || !w->pid) |
2015 | if ((w->pid == pid || !w->pid) |
1141 | && (!traced || (w->flags & 1))) |
2016 | && (!traced || (w->flags & 1))) |
1142 | { |
2017 | { |
1143 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2018 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1150 | |
2025 | |
1151 | #ifndef WCONTINUED |
2026 | #ifndef WCONTINUED |
1152 | # define WCONTINUED 0 |
2027 | # define WCONTINUED 0 |
1153 | #endif |
2028 | #endif |
1154 | |
2029 | |
|
|
2030 | /* called on sigchld etc., calls waitpid */ |
1155 | static void |
2031 | static void |
1156 | childcb (EV_P_ ev_signal *sw, int revents) |
2032 | childcb (EV_P_ ev_signal *sw, int revents) |
1157 | { |
2033 | { |
1158 | int pid, status; |
2034 | int pid, status; |
1159 | |
2035 | |
… | |
… | |
1167 | /* make sure we are called again until all children have been reaped */ |
2043 | /* make sure we are called again until all children have been reaped */ |
1168 | /* we need to do it this way so that the callback gets called before we continue */ |
2044 | /* we need to do it this way so that the callback gets called before we continue */ |
1169 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2045 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1170 | |
2046 | |
1171 | child_reap (EV_A_ pid, pid, status); |
2047 | child_reap (EV_A_ pid, pid, status); |
1172 | if (EV_PID_HASHSIZE > 1) |
2048 | if ((EV_PID_HASHSIZE) > 1) |
1173 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2049 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1174 | } |
2050 | } |
1175 | |
2051 | |
1176 | #endif |
2052 | #endif |
1177 | |
2053 | |
1178 | /*****************************************************************************/ |
2054 | /*****************************************************************************/ |
1179 | |
2055 | |
|
|
2056 | #if EV_USE_IOCP |
|
|
2057 | # include "ev_iocp.c" |
|
|
2058 | #endif |
1180 | #if EV_USE_PORT |
2059 | #if EV_USE_PORT |
1181 | # include "ev_port.c" |
2060 | # include "ev_port.c" |
1182 | #endif |
2061 | #endif |
1183 | #if EV_USE_KQUEUE |
2062 | #if EV_USE_KQUEUE |
1184 | # include "ev_kqueue.c" |
2063 | # include "ev_kqueue.c" |
… | |
… | |
1191 | #endif |
2070 | #endif |
1192 | #if EV_USE_SELECT |
2071 | #if EV_USE_SELECT |
1193 | # include "ev_select.c" |
2072 | # include "ev_select.c" |
1194 | #endif |
2073 | #endif |
1195 | |
2074 | |
1196 | int |
2075 | int ecb_cold |
1197 | ev_version_major (void) |
2076 | ev_version_major (void) |
1198 | { |
2077 | { |
1199 | return EV_VERSION_MAJOR; |
2078 | return EV_VERSION_MAJOR; |
1200 | } |
2079 | } |
1201 | |
2080 | |
1202 | int |
2081 | int ecb_cold |
1203 | ev_version_minor (void) |
2082 | ev_version_minor (void) |
1204 | { |
2083 | { |
1205 | return EV_VERSION_MINOR; |
2084 | return EV_VERSION_MINOR; |
1206 | } |
2085 | } |
1207 | |
2086 | |
1208 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2087 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1209 | int inline_size |
2088 | int inline_size ecb_cold |
1210 | enable_secure (void) |
2089 | enable_secure (void) |
1211 | { |
2090 | { |
1212 | #ifdef _WIN32 |
2091 | #ifdef _WIN32 |
1213 | return 0; |
2092 | return 0; |
1214 | #else |
2093 | #else |
1215 | return getuid () != geteuid () |
2094 | return getuid () != geteuid () |
1216 | || getgid () != getegid (); |
2095 | || getgid () != getegid (); |
1217 | #endif |
2096 | #endif |
1218 | } |
2097 | } |
1219 | |
2098 | |
1220 | unsigned int |
2099 | unsigned int ecb_cold |
1221 | ev_supported_backends (void) |
2100 | ev_supported_backends (void) |
1222 | { |
2101 | { |
1223 | unsigned int flags = 0; |
2102 | unsigned int flags = 0; |
1224 | |
2103 | |
1225 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2104 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1229 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2108 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1230 | |
2109 | |
1231 | return flags; |
2110 | return flags; |
1232 | } |
2111 | } |
1233 | |
2112 | |
1234 | unsigned int |
2113 | unsigned int ecb_cold |
1235 | ev_recommended_backends (void) |
2114 | ev_recommended_backends (void) |
1236 | { |
2115 | { |
1237 | unsigned int flags = ev_supported_backends (); |
2116 | unsigned int flags = ev_supported_backends (); |
1238 | |
2117 | |
1239 | #ifndef __NetBSD__ |
2118 | #ifndef __NetBSD__ |
1240 | /* kqueue is borked on everything but netbsd apparently */ |
2119 | /* kqueue is borked on everything but netbsd apparently */ |
1241 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2120 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1242 | flags &= ~EVBACKEND_KQUEUE; |
2121 | flags &= ~EVBACKEND_KQUEUE; |
1243 | #endif |
2122 | #endif |
1244 | #ifdef __APPLE__ |
2123 | #ifdef __APPLE__ |
1245 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2124 | /* only select works correctly on that "unix-certified" platform */ |
1246 | flags &= ~EVBACKEND_POLL; |
2125 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2126 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2127 | #endif |
|
|
2128 | #ifdef __FreeBSD__ |
|
|
2129 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1247 | #endif |
2130 | #endif |
1248 | |
2131 | |
1249 | return flags; |
2132 | return flags; |
1250 | } |
2133 | } |
1251 | |
2134 | |
1252 | unsigned int |
2135 | unsigned int ecb_cold |
1253 | ev_embeddable_backends (void) |
2136 | ev_embeddable_backends (void) |
1254 | { |
2137 | { |
1255 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2138 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1256 | |
2139 | |
1257 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2140 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1258 | /* please fix it and tell me how to detect the fix */ |
2141 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1259 | flags &= ~EVBACKEND_EPOLL; |
2142 | flags &= ~EVBACKEND_EPOLL; |
1260 | |
2143 | |
1261 | return flags; |
2144 | return flags; |
1262 | } |
2145 | } |
1263 | |
2146 | |
1264 | unsigned int |
2147 | unsigned int |
1265 | ev_backend (EV_P) |
2148 | ev_backend (EV_P) |
1266 | { |
2149 | { |
1267 | return backend; |
2150 | return backend; |
1268 | } |
2151 | } |
1269 | |
2152 | |
|
|
2153 | #if EV_FEATURE_API |
1270 | unsigned int |
2154 | unsigned int |
1271 | ev_loop_count (EV_P) |
2155 | ev_iteration (EV_P) |
1272 | { |
2156 | { |
1273 | return loop_count; |
2157 | return loop_count; |
|
|
2158 | } |
|
|
2159 | |
|
|
2160 | unsigned int |
|
|
2161 | ev_depth (EV_P) |
|
|
2162 | { |
|
|
2163 | return loop_depth; |
1274 | } |
2164 | } |
1275 | |
2165 | |
1276 | void |
2166 | void |
1277 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2167 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1278 | { |
2168 | { |
… | |
… | |
1283 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2173 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1284 | { |
2174 | { |
1285 | timeout_blocktime = interval; |
2175 | timeout_blocktime = interval; |
1286 | } |
2176 | } |
1287 | |
2177 | |
|
|
2178 | void |
|
|
2179 | ev_set_userdata (EV_P_ void *data) |
|
|
2180 | { |
|
|
2181 | userdata = data; |
|
|
2182 | } |
|
|
2183 | |
|
|
2184 | void * |
|
|
2185 | ev_userdata (EV_P) |
|
|
2186 | { |
|
|
2187 | return userdata; |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | void |
|
|
2191 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
2192 | { |
|
|
2193 | invoke_cb = invoke_pending_cb; |
|
|
2194 | } |
|
|
2195 | |
|
|
2196 | void |
|
|
2197 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
2198 | { |
|
|
2199 | release_cb = release; |
|
|
2200 | acquire_cb = acquire; |
|
|
2201 | } |
|
|
2202 | #endif |
|
|
2203 | |
|
|
2204 | /* initialise a loop structure, must be zero-initialised */ |
1288 | static void noinline |
2205 | static void noinline ecb_cold |
1289 | loop_init (EV_P_ unsigned int flags) |
2206 | loop_init (EV_P_ unsigned int flags) |
1290 | { |
2207 | { |
1291 | if (!backend) |
2208 | if (!backend) |
1292 | { |
2209 | { |
|
|
2210 | origflags = flags; |
|
|
2211 | |
|
|
2212 | #if EV_USE_REALTIME |
|
|
2213 | if (!have_realtime) |
|
|
2214 | { |
|
|
2215 | struct timespec ts; |
|
|
2216 | |
|
|
2217 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2218 | have_realtime = 1; |
|
|
2219 | } |
|
|
2220 | #endif |
|
|
2221 | |
1293 | #if EV_USE_MONOTONIC |
2222 | #if EV_USE_MONOTONIC |
|
|
2223 | if (!have_monotonic) |
1294 | { |
2224 | { |
1295 | struct timespec ts; |
2225 | struct timespec ts; |
|
|
2226 | |
1296 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2227 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1297 | have_monotonic = 1; |
2228 | have_monotonic = 1; |
1298 | } |
2229 | } |
1299 | #endif |
|
|
1300 | |
|
|
1301 | ev_rt_now = ev_time (); |
|
|
1302 | mn_now = get_clock (); |
|
|
1303 | now_floor = mn_now; |
|
|
1304 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1305 | |
|
|
1306 | io_blocktime = 0.; |
|
|
1307 | timeout_blocktime = 0.; |
|
|
1308 | backend = 0; |
|
|
1309 | backend_fd = -1; |
|
|
1310 | gotasync = 0; |
|
|
1311 | #if EV_USE_INOTIFY |
|
|
1312 | fs_fd = -2; |
|
|
1313 | #endif |
2230 | #endif |
1314 | |
2231 | |
1315 | /* pid check not overridable via env */ |
2232 | /* pid check not overridable via env */ |
1316 | #ifndef _WIN32 |
2233 | #ifndef _WIN32 |
1317 | if (flags & EVFLAG_FORKCHECK) |
2234 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1321 | if (!(flags & EVFLAG_NOENV) |
2238 | if (!(flags & EVFLAG_NOENV) |
1322 | && !enable_secure () |
2239 | && !enable_secure () |
1323 | && getenv ("LIBEV_FLAGS")) |
2240 | && getenv ("LIBEV_FLAGS")) |
1324 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2241 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1325 | |
2242 | |
1326 | if (!(flags & 0x0000ffffU)) |
2243 | ev_rt_now = ev_time (); |
|
|
2244 | mn_now = get_clock (); |
|
|
2245 | now_floor = mn_now; |
|
|
2246 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2247 | #if EV_FEATURE_API |
|
|
2248 | invoke_cb = ev_invoke_pending; |
|
|
2249 | #endif |
|
|
2250 | |
|
|
2251 | io_blocktime = 0.; |
|
|
2252 | timeout_blocktime = 0.; |
|
|
2253 | backend = 0; |
|
|
2254 | backend_fd = -1; |
|
|
2255 | sig_pending = 0; |
|
|
2256 | #if EV_ASYNC_ENABLE |
|
|
2257 | async_pending = 0; |
|
|
2258 | #endif |
|
|
2259 | pipe_write_skipped = 0; |
|
|
2260 | pipe_write_wanted = 0; |
|
|
2261 | #if EV_USE_INOTIFY |
|
|
2262 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2263 | #endif |
|
|
2264 | #if EV_USE_SIGNALFD |
|
|
2265 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2266 | #endif |
|
|
2267 | |
|
|
2268 | if (!(flags & EVBACKEND_MASK)) |
1327 | flags |= ev_recommended_backends (); |
2269 | flags |= ev_recommended_backends (); |
1328 | |
2270 | |
|
|
2271 | #if EV_USE_IOCP |
|
|
2272 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2273 | #endif |
1329 | #if EV_USE_PORT |
2274 | #if EV_USE_PORT |
1330 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2275 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1331 | #endif |
2276 | #endif |
1332 | #if EV_USE_KQUEUE |
2277 | #if EV_USE_KQUEUE |
1333 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2278 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1340 | #endif |
2285 | #endif |
1341 | #if EV_USE_SELECT |
2286 | #if EV_USE_SELECT |
1342 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2287 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1343 | #endif |
2288 | #endif |
1344 | |
2289 | |
|
|
2290 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2291 | |
|
|
2292 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1345 | ev_init (&pipeev, pipecb); |
2293 | ev_init (&pipe_w, pipecb); |
1346 | ev_set_priority (&pipeev, EV_MAXPRI); |
2294 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2295 | #endif |
1347 | } |
2296 | } |
1348 | } |
2297 | } |
1349 | |
2298 | |
1350 | static void noinline |
2299 | /* free up a loop structure */ |
|
|
2300 | void ecb_cold |
1351 | loop_destroy (EV_P) |
2301 | ev_loop_destroy (EV_P) |
1352 | { |
2302 | { |
1353 | int i; |
2303 | int i; |
1354 | |
2304 | |
|
|
2305 | #if EV_MULTIPLICITY |
|
|
2306 | /* mimic free (0) */ |
|
|
2307 | if (!EV_A) |
|
|
2308 | return; |
|
|
2309 | #endif |
|
|
2310 | |
|
|
2311 | #if EV_CLEANUP_ENABLE |
|
|
2312 | /* queue cleanup watchers (and execute them) */ |
|
|
2313 | if (expect_false (cleanupcnt)) |
|
|
2314 | { |
|
|
2315 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2316 | EV_INVOKE_PENDING; |
|
|
2317 | } |
|
|
2318 | #endif |
|
|
2319 | |
|
|
2320 | #if EV_CHILD_ENABLE |
|
|
2321 | if (ev_is_active (&childev)) |
|
|
2322 | { |
|
|
2323 | ev_ref (EV_A); /* child watcher */ |
|
|
2324 | ev_signal_stop (EV_A_ &childev); |
|
|
2325 | } |
|
|
2326 | #endif |
|
|
2327 | |
1355 | if (ev_is_active (&pipeev)) |
2328 | if (ev_is_active (&pipe_w)) |
1356 | { |
2329 | { |
1357 | ev_ref (EV_A); /* signal watcher */ |
2330 | /*ev_ref (EV_A);*/ |
1358 | ev_io_stop (EV_A_ &pipeev); |
2331 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1359 | |
2332 | |
1360 | #if EV_USE_EVENTFD |
2333 | #if EV_USE_EVENTFD |
1361 | if (evfd >= 0) |
2334 | if (evfd >= 0) |
1362 | close (evfd); |
2335 | close (evfd); |
1363 | #endif |
2336 | #endif |
1364 | |
2337 | |
1365 | if (evpipe [0] >= 0) |
2338 | if (evpipe [0] >= 0) |
1366 | { |
2339 | { |
1367 | close (evpipe [0]); |
2340 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1368 | close (evpipe [1]); |
2341 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1369 | } |
2342 | } |
1370 | } |
2343 | } |
|
|
2344 | |
|
|
2345 | #if EV_USE_SIGNALFD |
|
|
2346 | if (ev_is_active (&sigfd_w)) |
|
|
2347 | close (sigfd); |
|
|
2348 | #endif |
1371 | |
2349 | |
1372 | #if EV_USE_INOTIFY |
2350 | #if EV_USE_INOTIFY |
1373 | if (fs_fd >= 0) |
2351 | if (fs_fd >= 0) |
1374 | close (fs_fd); |
2352 | close (fs_fd); |
1375 | #endif |
2353 | #endif |
1376 | |
2354 | |
1377 | if (backend_fd >= 0) |
2355 | if (backend_fd >= 0) |
1378 | close (backend_fd); |
2356 | close (backend_fd); |
1379 | |
2357 | |
|
|
2358 | #if EV_USE_IOCP |
|
|
2359 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2360 | #endif |
1380 | #if EV_USE_PORT |
2361 | #if EV_USE_PORT |
1381 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2362 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1382 | #endif |
2363 | #endif |
1383 | #if EV_USE_KQUEUE |
2364 | #if EV_USE_KQUEUE |
1384 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2365 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1399 | #if EV_IDLE_ENABLE |
2380 | #if EV_IDLE_ENABLE |
1400 | array_free (idle, [i]); |
2381 | array_free (idle, [i]); |
1401 | #endif |
2382 | #endif |
1402 | } |
2383 | } |
1403 | |
2384 | |
1404 | ev_free (anfds); anfdmax = 0; |
2385 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1405 | |
2386 | |
1406 | /* have to use the microsoft-never-gets-it-right macro */ |
2387 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2388 | array_free (rfeed, EMPTY); |
1407 | array_free (fdchange, EMPTY); |
2389 | array_free (fdchange, EMPTY); |
1408 | array_free (timer, EMPTY); |
2390 | array_free (timer, EMPTY); |
1409 | #if EV_PERIODIC_ENABLE |
2391 | #if EV_PERIODIC_ENABLE |
1410 | array_free (periodic, EMPTY); |
2392 | array_free (periodic, EMPTY); |
1411 | #endif |
2393 | #endif |
1412 | #if EV_FORK_ENABLE |
2394 | #if EV_FORK_ENABLE |
1413 | array_free (fork, EMPTY); |
2395 | array_free (fork, EMPTY); |
1414 | #endif |
2396 | #endif |
|
|
2397 | #if EV_CLEANUP_ENABLE |
|
|
2398 | array_free (cleanup, EMPTY); |
|
|
2399 | #endif |
1415 | array_free (prepare, EMPTY); |
2400 | array_free (prepare, EMPTY); |
1416 | array_free (check, EMPTY); |
2401 | array_free (check, EMPTY); |
1417 | #if EV_ASYNC_ENABLE |
2402 | #if EV_ASYNC_ENABLE |
1418 | array_free (async, EMPTY); |
2403 | array_free (async, EMPTY); |
1419 | #endif |
2404 | #endif |
1420 | |
2405 | |
1421 | backend = 0; |
2406 | backend = 0; |
|
|
2407 | |
|
|
2408 | #if EV_MULTIPLICITY |
|
|
2409 | if (ev_is_default_loop (EV_A)) |
|
|
2410 | #endif |
|
|
2411 | ev_default_loop_ptr = 0; |
|
|
2412 | #if EV_MULTIPLICITY |
|
|
2413 | else |
|
|
2414 | ev_free (EV_A); |
|
|
2415 | #endif |
1422 | } |
2416 | } |
1423 | |
2417 | |
1424 | #if EV_USE_INOTIFY |
2418 | #if EV_USE_INOTIFY |
1425 | void inline_size infy_fork (EV_P); |
2419 | inline_size void infy_fork (EV_P); |
1426 | #endif |
2420 | #endif |
1427 | |
2421 | |
1428 | void inline_size |
2422 | inline_size void |
1429 | loop_fork (EV_P) |
2423 | loop_fork (EV_P) |
1430 | { |
2424 | { |
1431 | #if EV_USE_PORT |
2425 | #if EV_USE_PORT |
1432 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2426 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1433 | #endif |
2427 | #endif |
… | |
… | |
1439 | #endif |
2433 | #endif |
1440 | #if EV_USE_INOTIFY |
2434 | #if EV_USE_INOTIFY |
1441 | infy_fork (EV_A); |
2435 | infy_fork (EV_A); |
1442 | #endif |
2436 | #endif |
1443 | |
2437 | |
1444 | if (ev_is_active (&pipeev)) |
2438 | if (ev_is_active (&pipe_w)) |
1445 | { |
2439 | { |
1446 | /* this "locks" the handlers against writing to the pipe */ |
2440 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1447 | /* while we modify the fd vars */ |
|
|
1448 | gotsig = 1; |
|
|
1449 | #if EV_ASYNC_ENABLE |
|
|
1450 | gotasync = 1; |
|
|
1451 | #endif |
|
|
1452 | |
2441 | |
1453 | ev_ref (EV_A); |
2442 | ev_ref (EV_A); |
1454 | ev_io_stop (EV_A_ &pipeev); |
2443 | ev_io_stop (EV_A_ &pipe_w); |
1455 | |
2444 | |
1456 | #if EV_USE_EVENTFD |
2445 | #if EV_USE_EVENTFD |
1457 | if (evfd >= 0) |
2446 | if (evfd >= 0) |
1458 | close (evfd); |
2447 | close (evfd); |
1459 | #endif |
2448 | #endif |
1460 | |
2449 | |
1461 | if (evpipe [0] >= 0) |
2450 | if (evpipe [0] >= 0) |
1462 | { |
2451 | { |
1463 | close (evpipe [0]); |
2452 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1464 | close (evpipe [1]); |
2453 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1465 | } |
2454 | } |
1466 | |
2455 | |
|
|
2456 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1467 | evpipe_init (EV_A); |
2457 | evpipe_init (EV_A); |
1468 | /* now iterate over everything, in case we missed something */ |
2458 | /* now iterate over everything, in case we missed something */ |
1469 | pipecb (EV_A_ &pipeev, EV_READ); |
2459 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2460 | #endif |
1470 | } |
2461 | } |
1471 | |
2462 | |
1472 | postfork = 0; |
2463 | postfork = 0; |
1473 | } |
2464 | } |
1474 | |
2465 | |
1475 | #if EV_MULTIPLICITY |
2466 | #if EV_MULTIPLICITY |
1476 | |
2467 | |
1477 | struct ev_loop * |
2468 | struct ev_loop * ecb_cold |
1478 | ev_loop_new (unsigned int flags) |
2469 | ev_loop_new (unsigned int flags) |
1479 | { |
2470 | { |
1480 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2471 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1481 | |
2472 | |
1482 | memset (loop, 0, sizeof (struct ev_loop)); |
2473 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1483 | |
|
|
1484 | loop_init (EV_A_ flags); |
2474 | loop_init (EV_A_ flags); |
1485 | |
2475 | |
1486 | if (ev_backend (EV_A)) |
2476 | if (ev_backend (EV_A)) |
1487 | return loop; |
2477 | return EV_A; |
1488 | |
2478 | |
|
|
2479 | ev_free (EV_A); |
1489 | return 0; |
2480 | return 0; |
1490 | } |
2481 | } |
1491 | |
2482 | |
1492 | void |
2483 | #endif /* multiplicity */ |
1493 | ev_loop_destroy (EV_P) |
|
|
1494 | { |
|
|
1495 | loop_destroy (EV_A); |
|
|
1496 | ev_free (loop); |
|
|
1497 | } |
|
|
1498 | |
|
|
1499 | void |
|
|
1500 | ev_loop_fork (EV_P) |
|
|
1501 | { |
|
|
1502 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1503 | } |
|
|
1504 | |
2484 | |
1505 | #if EV_VERIFY |
2485 | #if EV_VERIFY |
1506 | static void noinline |
2486 | static void noinline ecb_cold |
1507 | verify_watcher (EV_P_ W w) |
2487 | verify_watcher (EV_P_ W w) |
1508 | { |
2488 | { |
1509 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2489 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1510 | |
2490 | |
1511 | if (w->pending) |
2491 | if (w->pending) |
1512 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2492 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1513 | } |
2493 | } |
1514 | |
2494 | |
1515 | static void noinline |
2495 | static void noinline ecb_cold |
1516 | verify_heap (EV_P_ ANHE *heap, int N) |
2496 | verify_heap (EV_P_ ANHE *heap, int N) |
1517 | { |
2497 | { |
1518 | int i; |
2498 | int i; |
1519 | |
2499 | |
1520 | for (i = HEAP0; i < N + HEAP0; ++i) |
2500 | for (i = HEAP0; i < N + HEAP0; ++i) |
1521 | { |
2501 | { |
1522 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
2502 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1523 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
2503 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1524 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
2504 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1525 | |
2505 | |
1526 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2506 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1527 | } |
2507 | } |
1528 | } |
2508 | } |
1529 | |
2509 | |
1530 | static void noinline |
2510 | static void noinline ecb_cold |
1531 | array_verify (EV_P_ W *ws, int cnt) |
2511 | array_verify (EV_P_ W *ws, int cnt) |
1532 | { |
2512 | { |
1533 | while (cnt--) |
2513 | while (cnt--) |
1534 | { |
2514 | { |
1535 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2515 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1536 | verify_watcher (EV_A_ ws [cnt]); |
2516 | verify_watcher (EV_A_ ws [cnt]); |
1537 | } |
2517 | } |
1538 | } |
2518 | } |
1539 | #endif |
2519 | #endif |
1540 | |
2520 | |
1541 | void |
2521 | #if EV_FEATURE_API |
|
|
2522 | void ecb_cold |
1542 | ev_loop_verify (EV_P) |
2523 | ev_verify (EV_P) |
1543 | { |
2524 | { |
1544 | #if EV_VERIFY |
2525 | #if EV_VERIFY |
1545 | int i; |
2526 | int i; |
1546 | WL w; |
2527 | WL w; |
1547 | |
2528 | |
1548 | assert (activecnt >= -1); |
2529 | assert (activecnt >= -1); |
1549 | |
2530 | |
1550 | assert (fdchangemax >= fdchangecnt); |
2531 | assert (fdchangemax >= fdchangecnt); |
1551 | for (i = 0; i < fdchangecnt; ++i) |
2532 | for (i = 0; i < fdchangecnt; ++i) |
1552 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
2533 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1553 | |
2534 | |
1554 | assert (anfdmax >= 0); |
2535 | assert (anfdmax >= 0); |
1555 | for (i = 0; i < anfdmax; ++i) |
2536 | for (i = 0; i < anfdmax; ++i) |
1556 | for (w = anfds [i].head; w; w = w->next) |
2537 | for (w = anfds [i].head; w; w = w->next) |
1557 | { |
2538 | { |
1558 | verify_watcher (EV_A_ (W)w); |
2539 | verify_watcher (EV_A_ (W)w); |
1559 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
2540 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1560 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2541 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1561 | } |
2542 | } |
1562 | |
2543 | |
1563 | assert (timermax >= timercnt); |
2544 | assert (timermax >= timercnt); |
1564 | verify_heap (EV_A_ timers, timercnt); |
2545 | verify_heap (EV_A_ timers, timercnt); |
1565 | |
2546 | |
… | |
… | |
1581 | #if EV_FORK_ENABLE |
2562 | #if EV_FORK_ENABLE |
1582 | assert (forkmax >= forkcnt); |
2563 | assert (forkmax >= forkcnt); |
1583 | array_verify (EV_A_ (W *)forks, forkcnt); |
2564 | array_verify (EV_A_ (W *)forks, forkcnt); |
1584 | #endif |
2565 | #endif |
1585 | |
2566 | |
|
|
2567 | #if EV_CLEANUP_ENABLE |
|
|
2568 | assert (cleanupmax >= cleanupcnt); |
|
|
2569 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2570 | #endif |
|
|
2571 | |
1586 | #if EV_ASYNC_ENABLE |
2572 | #if EV_ASYNC_ENABLE |
1587 | assert (asyncmax >= asynccnt); |
2573 | assert (asyncmax >= asynccnt); |
1588 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2574 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1589 | #endif |
2575 | #endif |
1590 | |
2576 | |
|
|
2577 | #if EV_PREPARE_ENABLE |
1591 | assert (preparemax >= preparecnt); |
2578 | assert (preparemax >= preparecnt); |
1592 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2579 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2580 | #endif |
1593 | |
2581 | |
|
|
2582 | #if EV_CHECK_ENABLE |
1594 | assert (checkmax >= checkcnt); |
2583 | assert (checkmax >= checkcnt); |
1595 | array_verify (EV_A_ (W *)checks, checkcnt); |
2584 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2585 | #endif |
1596 | |
2586 | |
1597 | # if 0 |
2587 | # if 0 |
|
|
2588 | #if EV_CHILD_ENABLE |
1598 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2589 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1599 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2590 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2591 | #endif |
1600 | # endif |
2592 | # endif |
1601 | #endif |
2593 | #endif |
1602 | } |
2594 | } |
1603 | |
2595 | #endif |
1604 | #endif /* multiplicity */ |
|
|
1605 | |
2596 | |
1606 | #if EV_MULTIPLICITY |
2597 | #if EV_MULTIPLICITY |
1607 | struct ev_loop * |
2598 | struct ev_loop * ecb_cold |
1608 | ev_default_loop_init (unsigned int flags) |
|
|
1609 | #else |
2599 | #else |
1610 | int |
2600 | int |
|
|
2601 | #endif |
1611 | ev_default_loop (unsigned int flags) |
2602 | ev_default_loop (unsigned int flags) |
1612 | #endif |
|
|
1613 | { |
2603 | { |
1614 | if (!ev_default_loop_ptr) |
2604 | if (!ev_default_loop_ptr) |
1615 | { |
2605 | { |
1616 | #if EV_MULTIPLICITY |
2606 | #if EV_MULTIPLICITY |
1617 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2607 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1618 | #else |
2608 | #else |
1619 | ev_default_loop_ptr = 1; |
2609 | ev_default_loop_ptr = 1; |
1620 | #endif |
2610 | #endif |
1621 | |
2611 | |
1622 | loop_init (EV_A_ flags); |
2612 | loop_init (EV_A_ flags); |
1623 | |
2613 | |
1624 | if (ev_backend (EV_A)) |
2614 | if (ev_backend (EV_A)) |
1625 | { |
2615 | { |
1626 | #ifndef _WIN32 |
2616 | #if EV_CHILD_ENABLE |
1627 | ev_signal_init (&childev, childcb, SIGCHLD); |
2617 | ev_signal_init (&childev, childcb, SIGCHLD); |
1628 | ev_set_priority (&childev, EV_MAXPRI); |
2618 | ev_set_priority (&childev, EV_MAXPRI); |
1629 | ev_signal_start (EV_A_ &childev); |
2619 | ev_signal_start (EV_A_ &childev); |
1630 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2620 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1631 | #endif |
2621 | #endif |
… | |
… | |
1636 | |
2626 | |
1637 | return ev_default_loop_ptr; |
2627 | return ev_default_loop_ptr; |
1638 | } |
2628 | } |
1639 | |
2629 | |
1640 | void |
2630 | void |
1641 | ev_default_destroy (void) |
2631 | ev_loop_fork (EV_P) |
1642 | { |
2632 | { |
1643 | #if EV_MULTIPLICITY |
|
|
1644 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1645 | #endif |
|
|
1646 | |
|
|
1647 | ev_default_loop_ptr = 0; |
|
|
1648 | |
|
|
1649 | #ifndef _WIN32 |
|
|
1650 | ev_ref (EV_A); /* child watcher */ |
|
|
1651 | ev_signal_stop (EV_A_ &childev); |
|
|
1652 | #endif |
|
|
1653 | |
|
|
1654 | loop_destroy (EV_A); |
|
|
1655 | } |
|
|
1656 | |
|
|
1657 | void |
|
|
1658 | ev_default_fork (void) |
|
|
1659 | { |
|
|
1660 | #if EV_MULTIPLICITY |
|
|
1661 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1662 | #endif |
|
|
1663 | |
|
|
1664 | postfork = 1; /* must be in line with ev_loop_fork */ |
2633 | postfork = 1; /* must be in line with ev_default_fork */ |
1665 | } |
2634 | } |
1666 | |
2635 | |
1667 | /*****************************************************************************/ |
2636 | /*****************************************************************************/ |
1668 | |
2637 | |
1669 | void |
2638 | void |
1670 | ev_invoke (EV_P_ void *w, int revents) |
2639 | ev_invoke (EV_P_ void *w, int revents) |
1671 | { |
2640 | { |
1672 | EV_CB_INVOKE ((W)w, revents); |
2641 | EV_CB_INVOKE ((W)w, revents); |
1673 | } |
2642 | } |
1674 | |
2643 | |
1675 | void inline_speed |
2644 | unsigned int |
1676 | call_pending (EV_P) |
2645 | ev_pending_count (EV_P) |
|
|
2646 | { |
|
|
2647 | int pri; |
|
|
2648 | unsigned int count = 0; |
|
|
2649 | |
|
|
2650 | for (pri = NUMPRI; pri--; ) |
|
|
2651 | count += pendingcnt [pri]; |
|
|
2652 | |
|
|
2653 | return count; |
|
|
2654 | } |
|
|
2655 | |
|
|
2656 | void noinline |
|
|
2657 | ev_invoke_pending (EV_P) |
1677 | { |
2658 | { |
1678 | int pri; |
2659 | int pri; |
1679 | |
2660 | |
1680 | for (pri = NUMPRI; pri--; ) |
2661 | for (pri = NUMPRI; pri--; ) |
1681 | while (pendingcnt [pri]) |
2662 | while (pendingcnt [pri]) |
1682 | { |
2663 | { |
1683 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2664 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1684 | |
2665 | |
1685 | if (expect_true (p->w)) |
|
|
1686 | { |
|
|
1687 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1688 | |
|
|
1689 | p->w->pending = 0; |
2666 | p->w->pending = 0; |
1690 | EV_CB_INVOKE (p->w, p->events); |
2667 | EV_CB_INVOKE (p->w, p->events); |
1691 | EV_FREQUENT_CHECK; |
2668 | EV_FREQUENT_CHECK; |
1692 | } |
|
|
1693 | } |
2669 | } |
1694 | } |
2670 | } |
1695 | |
2671 | |
1696 | #if EV_IDLE_ENABLE |
2672 | #if EV_IDLE_ENABLE |
1697 | void inline_size |
2673 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2674 | /* only when higher priorities are idle" logic */ |
|
|
2675 | inline_size void |
1698 | idle_reify (EV_P) |
2676 | idle_reify (EV_P) |
1699 | { |
2677 | { |
1700 | if (expect_false (idleall)) |
2678 | if (expect_false (idleall)) |
1701 | { |
2679 | { |
1702 | int pri; |
2680 | int pri; |
… | |
… | |
1714 | } |
2692 | } |
1715 | } |
2693 | } |
1716 | } |
2694 | } |
1717 | #endif |
2695 | #endif |
1718 | |
2696 | |
1719 | void inline_size |
2697 | /* make timers pending */ |
|
|
2698 | inline_size void |
1720 | timers_reify (EV_P) |
2699 | timers_reify (EV_P) |
1721 | { |
2700 | { |
1722 | EV_FREQUENT_CHECK; |
2701 | EV_FREQUENT_CHECK; |
1723 | |
2702 | |
1724 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2703 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1725 | { |
2704 | { |
1726 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2705 | do |
1727 | |
|
|
1728 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1729 | |
|
|
1730 | /* first reschedule or stop timer */ |
|
|
1731 | if (w->repeat) |
|
|
1732 | { |
2706 | { |
|
|
2707 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2708 | |
|
|
2709 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2710 | |
|
|
2711 | /* first reschedule or stop timer */ |
|
|
2712 | if (w->repeat) |
|
|
2713 | { |
1733 | ev_at (w) += w->repeat; |
2714 | ev_at (w) += w->repeat; |
1734 | if (ev_at (w) < mn_now) |
2715 | if (ev_at (w) < mn_now) |
1735 | ev_at (w) = mn_now; |
2716 | ev_at (w) = mn_now; |
1736 | |
2717 | |
1737 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2718 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1738 | |
2719 | |
1739 | ANHE_at_cache (timers [HEAP0]); |
2720 | ANHE_at_cache (timers [HEAP0]); |
1740 | downheap (timers, timercnt, HEAP0); |
2721 | downheap (timers, timercnt, HEAP0); |
|
|
2722 | } |
|
|
2723 | else |
|
|
2724 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2725 | |
|
|
2726 | EV_FREQUENT_CHECK; |
|
|
2727 | feed_reverse (EV_A_ (W)w); |
1741 | } |
2728 | } |
1742 | else |
2729 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1743 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1744 | |
2730 | |
1745 | EV_FREQUENT_CHECK; |
2731 | feed_reverse_done (EV_A_ EV_TIMER); |
1746 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1747 | } |
2732 | } |
1748 | } |
2733 | } |
1749 | |
2734 | |
1750 | #if EV_PERIODIC_ENABLE |
2735 | #if EV_PERIODIC_ENABLE |
1751 | void inline_size |
2736 | |
|
|
2737 | static void noinline |
|
|
2738 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2739 | { |
|
|
2740 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2741 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2742 | |
|
|
2743 | /* the above almost always errs on the low side */ |
|
|
2744 | while (at <= ev_rt_now) |
|
|
2745 | { |
|
|
2746 | ev_tstamp nat = at + w->interval; |
|
|
2747 | |
|
|
2748 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2749 | if (expect_false (nat == at)) |
|
|
2750 | { |
|
|
2751 | at = ev_rt_now; |
|
|
2752 | break; |
|
|
2753 | } |
|
|
2754 | |
|
|
2755 | at = nat; |
|
|
2756 | } |
|
|
2757 | |
|
|
2758 | ev_at (w) = at; |
|
|
2759 | } |
|
|
2760 | |
|
|
2761 | /* make periodics pending */ |
|
|
2762 | inline_size void |
1752 | periodics_reify (EV_P) |
2763 | periodics_reify (EV_P) |
1753 | { |
2764 | { |
1754 | EV_FREQUENT_CHECK; |
2765 | EV_FREQUENT_CHECK; |
1755 | |
2766 | |
1756 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2767 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1757 | { |
2768 | { |
1758 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2769 | int feed_count = 0; |
1759 | |
2770 | |
1760 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2771 | do |
1761 | |
|
|
1762 | /* first reschedule or stop timer */ |
|
|
1763 | if (w->reschedule_cb) |
|
|
1764 | { |
2772 | { |
|
|
2773 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2774 | |
|
|
2775 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2776 | |
|
|
2777 | /* first reschedule or stop timer */ |
|
|
2778 | if (w->reschedule_cb) |
|
|
2779 | { |
1765 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2780 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1766 | |
2781 | |
1767 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2782 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1768 | |
2783 | |
1769 | ANHE_at_cache (periodics [HEAP0]); |
2784 | ANHE_at_cache (periodics [HEAP0]); |
1770 | downheap (periodics, periodiccnt, HEAP0); |
2785 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2786 | } |
|
|
2787 | else if (w->interval) |
|
|
2788 | { |
|
|
2789 | periodic_recalc (EV_A_ w); |
|
|
2790 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2791 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2792 | } |
|
|
2793 | else |
|
|
2794 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2795 | |
|
|
2796 | EV_FREQUENT_CHECK; |
|
|
2797 | feed_reverse (EV_A_ (W)w); |
1771 | } |
2798 | } |
1772 | else if (w->interval) |
2799 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1773 | { |
|
|
1774 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1775 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1776 | /* this might happen because of floating point inexactness */ |
|
|
1777 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1778 | { |
|
|
1779 | ev_at (w) += w->interval; |
|
|
1780 | |
2800 | |
1781 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1782 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1783 | /* has effectively asked to get triggered more often than possible */ |
|
|
1784 | if (ev_at (w) < ev_rt_now) |
|
|
1785 | ev_at (w) = ev_rt_now; |
|
|
1786 | } |
|
|
1787 | |
|
|
1788 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1789 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1790 | } |
|
|
1791 | else |
|
|
1792 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1793 | |
|
|
1794 | EV_FREQUENT_CHECK; |
|
|
1795 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2801 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1796 | } |
2802 | } |
1797 | } |
2803 | } |
1798 | |
2804 | |
|
|
2805 | /* simply recalculate all periodics */ |
|
|
2806 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1799 | static void noinline |
2807 | static void noinline ecb_cold |
1800 | periodics_reschedule (EV_P) |
2808 | periodics_reschedule (EV_P) |
1801 | { |
2809 | { |
1802 | int i; |
2810 | int i; |
1803 | |
2811 | |
1804 | /* adjust periodics after time jump */ |
2812 | /* adjust periodics after time jump */ |
… | |
… | |
1807 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2815 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1808 | |
2816 | |
1809 | if (w->reschedule_cb) |
2817 | if (w->reschedule_cb) |
1810 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2818 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1811 | else if (w->interval) |
2819 | else if (w->interval) |
1812 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2820 | periodic_recalc (EV_A_ w); |
1813 | |
2821 | |
1814 | ANHE_at_cache (periodics [i]); |
2822 | ANHE_at_cache (periodics [i]); |
1815 | } |
2823 | } |
1816 | |
2824 | |
1817 | reheap (periodics, periodiccnt); |
2825 | reheap (periodics, periodiccnt); |
1818 | } |
2826 | } |
1819 | #endif |
2827 | #endif |
1820 | |
2828 | |
1821 | void inline_speed |
2829 | /* adjust all timers by a given offset */ |
|
|
2830 | static void noinline ecb_cold |
|
|
2831 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2832 | { |
|
|
2833 | int i; |
|
|
2834 | |
|
|
2835 | for (i = 0; i < timercnt; ++i) |
|
|
2836 | { |
|
|
2837 | ANHE *he = timers + i + HEAP0; |
|
|
2838 | ANHE_w (*he)->at += adjust; |
|
|
2839 | ANHE_at_cache (*he); |
|
|
2840 | } |
|
|
2841 | } |
|
|
2842 | |
|
|
2843 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2844 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2845 | inline_speed void |
1822 | time_update (EV_P_ ev_tstamp max_block) |
2846 | time_update (EV_P_ ev_tstamp max_block) |
1823 | { |
2847 | { |
1824 | int i; |
|
|
1825 | |
|
|
1826 | #if EV_USE_MONOTONIC |
2848 | #if EV_USE_MONOTONIC |
1827 | if (expect_true (have_monotonic)) |
2849 | if (expect_true (have_monotonic)) |
1828 | { |
2850 | { |
|
|
2851 | int i; |
1829 | ev_tstamp odiff = rtmn_diff; |
2852 | ev_tstamp odiff = rtmn_diff; |
1830 | |
2853 | |
1831 | mn_now = get_clock (); |
2854 | mn_now = get_clock (); |
1832 | |
2855 | |
1833 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2856 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1849 | * doesn't hurt either as we only do this on time-jumps or |
2872 | * doesn't hurt either as we only do this on time-jumps or |
1850 | * in the unlikely event of having been preempted here. |
2873 | * in the unlikely event of having been preempted here. |
1851 | */ |
2874 | */ |
1852 | for (i = 4; --i; ) |
2875 | for (i = 4; --i; ) |
1853 | { |
2876 | { |
|
|
2877 | ev_tstamp diff; |
1854 | rtmn_diff = ev_rt_now - mn_now; |
2878 | rtmn_diff = ev_rt_now - mn_now; |
1855 | |
2879 | |
|
|
2880 | diff = odiff - rtmn_diff; |
|
|
2881 | |
1856 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2882 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1857 | return; /* all is well */ |
2883 | return; /* all is well */ |
1858 | |
2884 | |
1859 | ev_rt_now = ev_time (); |
2885 | ev_rt_now = ev_time (); |
1860 | mn_now = get_clock (); |
2886 | mn_now = get_clock (); |
1861 | now_floor = mn_now; |
2887 | now_floor = mn_now; |
1862 | } |
2888 | } |
1863 | |
2889 | |
|
|
2890 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2891 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1864 | # if EV_PERIODIC_ENABLE |
2892 | # if EV_PERIODIC_ENABLE |
1865 | periodics_reschedule (EV_A); |
2893 | periodics_reschedule (EV_A); |
1866 | # endif |
2894 | # endif |
1867 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1868 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1869 | } |
2895 | } |
1870 | else |
2896 | else |
1871 | #endif |
2897 | #endif |
1872 | { |
2898 | { |
1873 | ev_rt_now = ev_time (); |
2899 | ev_rt_now = ev_time (); |
1874 | |
2900 | |
1875 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2901 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1876 | { |
2902 | { |
|
|
2903 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2904 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1877 | #if EV_PERIODIC_ENABLE |
2905 | #if EV_PERIODIC_ENABLE |
1878 | periodics_reschedule (EV_A); |
2906 | periodics_reschedule (EV_A); |
1879 | #endif |
2907 | #endif |
1880 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1881 | for (i = 0; i < timercnt; ++i) |
|
|
1882 | { |
|
|
1883 | ANHE *he = timers + i + HEAP0; |
|
|
1884 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1885 | ANHE_at_cache (*he); |
|
|
1886 | } |
|
|
1887 | } |
2908 | } |
1888 | |
2909 | |
1889 | mn_now = ev_rt_now; |
2910 | mn_now = ev_rt_now; |
1890 | } |
2911 | } |
1891 | } |
2912 | } |
1892 | |
2913 | |
1893 | void |
2914 | void |
1894 | ev_ref (EV_P) |
|
|
1895 | { |
|
|
1896 | ++activecnt; |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | void |
|
|
1900 | ev_unref (EV_P) |
|
|
1901 | { |
|
|
1902 | --activecnt; |
|
|
1903 | } |
|
|
1904 | |
|
|
1905 | void |
|
|
1906 | ev_now_update (EV_P) |
|
|
1907 | { |
|
|
1908 | time_update (EV_A_ 1e100); |
|
|
1909 | } |
|
|
1910 | |
|
|
1911 | static int loop_done; |
|
|
1912 | |
|
|
1913 | void |
|
|
1914 | ev_loop (EV_P_ int flags) |
2915 | ev_run (EV_P_ int flags) |
1915 | { |
2916 | { |
|
|
2917 | #if EV_FEATURE_API |
|
|
2918 | ++loop_depth; |
|
|
2919 | #endif |
|
|
2920 | |
|
|
2921 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2922 | |
1916 | loop_done = EVUNLOOP_CANCEL; |
2923 | loop_done = EVBREAK_CANCEL; |
1917 | |
2924 | |
1918 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2925 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1919 | |
2926 | |
1920 | do |
2927 | do |
1921 | { |
2928 | { |
1922 | #if EV_VERIFY >= 2 |
2929 | #if EV_VERIFY >= 2 |
1923 | ev_loop_verify (EV_A); |
2930 | ev_verify (EV_A); |
1924 | #endif |
2931 | #endif |
1925 | |
2932 | |
1926 | #ifndef _WIN32 |
2933 | #ifndef _WIN32 |
1927 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2934 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1928 | if (expect_false (getpid () != curpid)) |
2935 | if (expect_false (getpid () != curpid)) |
… | |
… | |
1936 | /* we might have forked, so queue fork handlers */ |
2943 | /* we might have forked, so queue fork handlers */ |
1937 | if (expect_false (postfork)) |
2944 | if (expect_false (postfork)) |
1938 | if (forkcnt) |
2945 | if (forkcnt) |
1939 | { |
2946 | { |
1940 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2947 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1941 | call_pending (EV_A); |
2948 | EV_INVOKE_PENDING; |
1942 | } |
2949 | } |
1943 | #endif |
2950 | #endif |
1944 | |
2951 | |
|
|
2952 | #if EV_PREPARE_ENABLE |
1945 | /* queue prepare watchers (and execute them) */ |
2953 | /* queue prepare watchers (and execute them) */ |
1946 | if (expect_false (preparecnt)) |
2954 | if (expect_false (preparecnt)) |
1947 | { |
2955 | { |
1948 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2956 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1949 | call_pending (EV_A); |
2957 | EV_INVOKE_PENDING; |
1950 | } |
2958 | } |
|
|
2959 | #endif |
1951 | |
2960 | |
1952 | if (expect_false (!activecnt)) |
2961 | if (expect_false (loop_done)) |
1953 | break; |
2962 | break; |
1954 | |
2963 | |
1955 | /* we might have forked, so reify kernel state if necessary */ |
2964 | /* we might have forked, so reify kernel state if necessary */ |
1956 | if (expect_false (postfork)) |
2965 | if (expect_false (postfork)) |
1957 | loop_fork (EV_A); |
2966 | loop_fork (EV_A); |
… | |
… | |
1962 | /* calculate blocking time */ |
2971 | /* calculate blocking time */ |
1963 | { |
2972 | { |
1964 | ev_tstamp waittime = 0.; |
2973 | ev_tstamp waittime = 0.; |
1965 | ev_tstamp sleeptime = 0.; |
2974 | ev_tstamp sleeptime = 0.; |
1966 | |
2975 | |
|
|
2976 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2977 | ev_tstamp prev_mn_now = mn_now; |
|
|
2978 | |
|
|
2979 | /* update time to cancel out callback processing overhead */ |
|
|
2980 | time_update (EV_A_ 1e100); |
|
|
2981 | |
|
|
2982 | /* from now on, we want a pipe-wake-up */ |
|
|
2983 | pipe_write_wanted = 1; |
|
|
2984 | |
|
|
2985 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2986 | |
1967 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2987 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1968 | { |
2988 | { |
1969 | /* update time to cancel out callback processing overhead */ |
|
|
1970 | time_update (EV_A_ 1e100); |
|
|
1971 | |
|
|
1972 | waittime = MAX_BLOCKTIME; |
2989 | waittime = MAX_BLOCKTIME; |
1973 | |
2990 | |
1974 | if (timercnt) |
2991 | if (timercnt) |
1975 | { |
2992 | { |
1976 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2993 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1977 | if (waittime > to) waittime = to; |
2994 | if (waittime > to) waittime = to; |
1978 | } |
2995 | } |
1979 | |
2996 | |
1980 | #if EV_PERIODIC_ENABLE |
2997 | #if EV_PERIODIC_ENABLE |
1981 | if (periodiccnt) |
2998 | if (periodiccnt) |
1982 | { |
2999 | { |
1983 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3000 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1984 | if (waittime > to) waittime = to; |
3001 | if (waittime > to) waittime = to; |
1985 | } |
3002 | } |
1986 | #endif |
3003 | #endif |
1987 | |
3004 | |
|
|
3005 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1988 | if (expect_false (waittime < timeout_blocktime)) |
3006 | if (expect_false (waittime < timeout_blocktime)) |
1989 | waittime = timeout_blocktime; |
3007 | waittime = timeout_blocktime; |
1990 | |
3008 | |
1991 | sleeptime = waittime - backend_fudge; |
3009 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3010 | /* to pass a minimum nonzero value to the backend */ |
|
|
3011 | if (expect_false (waittime < backend_mintime)) |
|
|
3012 | waittime = backend_mintime; |
1992 | |
3013 | |
|
|
3014 | /* extra check because io_blocktime is commonly 0 */ |
1993 | if (expect_true (sleeptime > io_blocktime)) |
3015 | if (expect_false (io_blocktime)) |
1994 | sleeptime = io_blocktime; |
|
|
1995 | |
|
|
1996 | if (sleeptime) |
|
|
1997 | { |
3016 | { |
|
|
3017 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3018 | |
|
|
3019 | if (sleeptime > waittime - backend_mintime) |
|
|
3020 | sleeptime = waittime - backend_mintime; |
|
|
3021 | |
|
|
3022 | if (expect_true (sleeptime > 0.)) |
|
|
3023 | { |
1998 | ev_sleep (sleeptime); |
3024 | ev_sleep (sleeptime); |
1999 | waittime -= sleeptime; |
3025 | waittime -= sleeptime; |
|
|
3026 | } |
2000 | } |
3027 | } |
2001 | } |
3028 | } |
2002 | |
3029 | |
|
|
3030 | #if EV_FEATURE_API |
2003 | ++loop_count; |
3031 | ++loop_count; |
|
|
3032 | #endif |
|
|
3033 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2004 | backend_poll (EV_A_ waittime); |
3034 | backend_poll (EV_A_ waittime); |
|
|
3035 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3036 | |
|
|
3037 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3038 | |
|
|
3039 | if (pipe_write_skipped) |
|
|
3040 | { |
|
|
3041 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3042 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3043 | } |
|
|
3044 | |
2005 | |
3045 | |
2006 | /* update ev_rt_now, do magic */ |
3046 | /* update ev_rt_now, do magic */ |
2007 | time_update (EV_A_ waittime + sleeptime); |
3047 | time_update (EV_A_ waittime + sleeptime); |
2008 | } |
3048 | } |
2009 | |
3049 | |
… | |
… | |
2016 | #if EV_IDLE_ENABLE |
3056 | #if EV_IDLE_ENABLE |
2017 | /* queue idle watchers unless other events are pending */ |
3057 | /* queue idle watchers unless other events are pending */ |
2018 | idle_reify (EV_A); |
3058 | idle_reify (EV_A); |
2019 | #endif |
3059 | #endif |
2020 | |
3060 | |
|
|
3061 | #if EV_CHECK_ENABLE |
2021 | /* queue check watchers, to be executed first */ |
3062 | /* queue check watchers, to be executed first */ |
2022 | if (expect_false (checkcnt)) |
3063 | if (expect_false (checkcnt)) |
2023 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3064 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3065 | #endif |
2024 | |
3066 | |
2025 | call_pending (EV_A); |
3067 | EV_INVOKE_PENDING; |
2026 | } |
3068 | } |
2027 | while (expect_true ( |
3069 | while (expect_true ( |
2028 | activecnt |
3070 | activecnt |
2029 | && !loop_done |
3071 | && !loop_done |
2030 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3072 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2031 | )); |
3073 | )); |
2032 | |
3074 | |
2033 | if (loop_done == EVUNLOOP_ONE) |
3075 | if (loop_done == EVBREAK_ONE) |
2034 | loop_done = EVUNLOOP_CANCEL; |
3076 | loop_done = EVBREAK_CANCEL; |
|
|
3077 | |
|
|
3078 | #if EV_FEATURE_API |
|
|
3079 | --loop_depth; |
|
|
3080 | #endif |
2035 | } |
3081 | } |
2036 | |
3082 | |
2037 | void |
3083 | void |
2038 | ev_unloop (EV_P_ int how) |
3084 | ev_break (EV_P_ int how) |
2039 | { |
3085 | { |
2040 | loop_done = how; |
3086 | loop_done = how; |
2041 | } |
3087 | } |
2042 | |
3088 | |
|
|
3089 | void |
|
|
3090 | ev_ref (EV_P) |
|
|
3091 | { |
|
|
3092 | ++activecnt; |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | void |
|
|
3096 | ev_unref (EV_P) |
|
|
3097 | { |
|
|
3098 | --activecnt; |
|
|
3099 | } |
|
|
3100 | |
|
|
3101 | void |
|
|
3102 | ev_now_update (EV_P) |
|
|
3103 | { |
|
|
3104 | time_update (EV_A_ 1e100); |
|
|
3105 | } |
|
|
3106 | |
|
|
3107 | void |
|
|
3108 | ev_suspend (EV_P) |
|
|
3109 | { |
|
|
3110 | ev_now_update (EV_A); |
|
|
3111 | } |
|
|
3112 | |
|
|
3113 | void |
|
|
3114 | ev_resume (EV_P) |
|
|
3115 | { |
|
|
3116 | ev_tstamp mn_prev = mn_now; |
|
|
3117 | |
|
|
3118 | ev_now_update (EV_A); |
|
|
3119 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3120 | #if EV_PERIODIC_ENABLE |
|
|
3121 | /* TODO: really do this? */ |
|
|
3122 | periodics_reschedule (EV_A); |
|
|
3123 | #endif |
|
|
3124 | } |
|
|
3125 | |
2043 | /*****************************************************************************/ |
3126 | /*****************************************************************************/ |
|
|
3127 | /* singly-linked list management, used when the expected list length is short */ |
2044 | |
3128 | |
2045 | void inline_size |
3129 | inline_size void |
2046 | wlist_add (WL *head, WL elem) |
3130 | wlist_add (WL *head, WL elem) |
2047 | { |
3131 | { |
2048 | elem->next = *head; |
3132 | elem->next = *head; |
2049 | *head = elem; |
3133 | *head = elem; |
2050 | } |
3134 | } |
2051 | |
3135 | |
2052 | void inline_size |
3136 | inline_size void |
2053 | wlist_del (WL *head, WL elem) |
3137 | wlist_del (WL *head, WL elem) |
2054 | { |
3138 | { |
2055 | while (*head) |
3139 | while (*head) |
2056 | { |
3140 | { |
2057 | if (*head == elem) |
3141 | if (expect_true (*head == elem)) |
2058 | { |
3142 | { |
2059 | *head = elem->next; |
3143 | *head = elem->next; |
2060 | return; |
3144 | break; |
2061 | } |
3145 | } |
2062 | |
3146 | |
2063 | head = &(*head)->next; |
3147 | head = &(*head)->next; |
2064 | } |
3148 | } |
2065 | } |
3149 | } |
2066 | |
3150 | |
2067 | void inline_speed |
3151 | /* internal, faster, version of ev_clear_pending */ |
|
|
3152 | inline_speed void |
2068 | clear_pending (EV_P_ W w) |
3153 | clear_pending (EV_P_ W w) |
2069 | { |
3154 | { |
2070 | if (w->pending) |
3155 | if (w->pending) |
2071 | { |
3156 | { |
2072 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3157 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2073 | w->pending = 0; |
3158 | w->pending = 0; |
2074 | } |
3159 | } |
2075 | } |
3160 | } |
2076 | |
3161 | |
2077 | int |
3162 | int |
… | |
… | |
2081 | int pending = w_->pending; |
3166 | int pending = w_->pending; |
2082 | |
3167 | |
2083 | if (expect_true (pending)) |
3168 | if (expect_true (pending)) |
2084 | { |
3169 | { |
2085 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3170 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3171 | p->w = (W)&pending_w; |
2086 | w_->pending = 0; |
3172 | w_->pending = 0; |
2087 | p->w = 0; |
|
|
2088 | return p->events; |
3173 | return p->events; |
2089 | } |
3174 | } |
2090 | else |
3175 | else |
2091 | return 0; |
3176 | return 0; |
2092 | } |
3177 | } |
2093 | |
3178 | |
2094 | void inline_size |
3179 | inline_size void |
2095 | pri_adjust (EV_P_ W w) |
3180 | pri_adjust (EV_P_ W w) |
2096 | { |
3181 | { |
2097 | int pri = w->priority; |
3182 | int pri = ev_priority (w); |
2098 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3183 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2099 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3184 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2100 | w->priority = pri; |
3185 | ev_set_priority (w, pri); |
2101 | } |
3186 | } |
2102 | |
3187 | |
2103 | void inline_speed |
3188 | inline_speed void |
2104 | ev_start (EV_P_ W w, int active) |
3189 | ev_start (EV_P_ W w, int active) |
2105 | { |
3190 | { |
2106 | pri_adjust (EV_A_ w); |
3191 | pri_adjust (EV_A_ w); |
2107 | w->active = active; |
3192 | w->active = active; |
2108 | ev_ref (EV_A); |
3193 | ev_ref (EV_A); |
2109 | } |
3194 | } |
2110 | |
3195 | |
2111 | void inline_size |
3196 | inline_size void |
2112 | ev_stop (EV_P_ W w) |
3197 | ev_stop (EV_P_ W w) |
2113 | { |
3198 | { |
2114 | ev_unref (EV_A); |
3199 | ev_unref (EV_A); |
2115 | w->active = 0; |
3200 | w->active = 0; |
2116 | } |
3201 | } |
… | |
… | |
2123 | int fd = w->fd; |
3208 | int fd = w->fd; |
2124 | |
3209 | |
2125 | if (expect_false (ev_is_active (w))) |
3210 | if (expect_false (ev_is_active (w))) |
2126 | return; |
3211 | return; |
2127 | |
3212 | |
2128 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3213 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2129 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
3214 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2130 | |
3215 | |
2131 | EV_FREQUENT_CHECK; |
3216 | EV_FREQUENT_CHECK; |
2132 | |
3217 | |
2133 | ev_start (EV_A_ (W)w, 1); |
3218 | ev_start (EV_A_ (W)w, 1); |
2134 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3219 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2135 | wlist_add (&anfds[fd].head, (WL)w); |
3220 | wlist_add (&anfds[fd].head, (WL)w); |
2136 | |
3221 | |
2137 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
3222 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2138 | w->events &= ~EV_IOFDSET; |
3223 | w->events &= ~EV__IOFDSET; |
2139 | |
3224 | |
2140 | EV_FREQUENT_CHECK; |
3225 | EV_FREQUENT_CHECK; |
2141 | } |
3226 | } |
2142 | |
3227 | |
2143 | void noinline |
3228 | void noinline |
… | |
… | |
2145 | { |
3230 | { |
2146 | clear_pending (EV_A_ (W)w); |
3231 | clear_pending (EV_A_ (W)w); |
2147 | if (expect_false (!ev_is_active (w))) |
3232 | if (expect_false (!ev_is_active (w))) |
2148 | return; |
3233 | return; |
2149 | |
3234 | |
2150 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3235 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2151 | |
3236 | |
2152 | EV_FREQUENT_CHECK; |
3237 | EV_FREQUENT_CHECK; |
2153 | |
3238 | |
2154 | wlist_del (&anfds[w->fd].head, (WL)w); |
3239 | wlist_del (&anfds[w->fd].head, (WL)w); |
2155 | ev_stop (EV_A_ (W)w); |
3240 | ev_stop (EV_A_ (W)w); |
2156 | |
3241 | |
2157 | fd_change (EV_A_ w->fd, 1); |
3242 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2158 | |
3243 | |
2159 | EV_FREQUENT_CHECK; |
3244 | EV_FREQUENT_CHECK; |
2160 | } |
3245 | } |
2161 | |
3246 | |
2162 | void noinline |
3247 | void noinline |
… | |
… | |
2165 | if (expect_false (ev_is_active (w))) |
3250 | if (expect_false (ev_is_active (w))) |
2166 | return; |
3251 | return; |
2167 | |
3252 | |
2168 | ev_at (w) += mn_now; |
3253 | ev_at (w) += mn_now; |
2169 | |
3254 | |
2170 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3255 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2171 | |
3256 | |
2172 | EV_FREQUENT_CHECK; |
3257 | EV_FREQUENT_CHECK; |
2173 | |
3258 | |
2174 | ++timercnt; |
3259 | ++timercnt; |
2175 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3260 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2178 | ANHE_at_cache (timers [ev_active (w)]); |
3263 | ANHE_at_cache (timers [ev_active (w)]); |
2179 | upheap (timers, ev_active (w)); |
3264 | upheap (timers, ev_active (w)); |
2180 | |
3265 | |
2181 | EV_FREQUENT_CHECK; |
3266 | EV_FREQUENT_CHECK; |
2182 | |
3267 | |
2183 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3268 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2184 | } |
3269 | } |
2185 | |
3270 | |
2186 | void noinline |
3271 | void noinline |
2187 | ev_timer_stop (EV_P_ ev_timer *w) |
3272 | ev_timer_stop (EV_P_ ev_timer *w) |
2188 | { |
3273 | { |
… | |
… | |
2193 | EV_FREQUENT_CHECK; |
3278 | EV_FREQUENT_CHECK; |
2194 | |
3279 | |
2195 | { |
3280 | { |
2196 | int active = ev_active (w); |
3281 | int active = ev_active (w); |
2197 | |
3282 | |
2198 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3283 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2199 | |
3284 | |
2200 | --timercnt; |
3285 | --timercnt; |
2201 | |
3286 | |
2202 | if (expect_true (active < timercnt + HEAP0)) |
3287 | if (expect_true (active < timercnt + HEAP0)) |
2203 | { |
3288 | { |
2204 | timers [active] = timers [timercnt + HEAP0]; |
3289 | timers [active] = timers [timercnt + HEAP0]; |
2205 | adjustheap (timers, timercnt, active); |
3290 | adjustheap (timers, timercnt, active); |
2206 | } |
3291 | } |
2207 | } |
3292 | } |
2208 | |
3293 | |
2209 | EV_FREQUENT_CHECK; |
|
|
2210 | |
|
|
2211 | ev_at (w) -= mn_now; |
3294 | ev_at (w) -= mn_now; |
2212 | |
3295 | |
2213 | ev_stop (EV_A_ (W)w); |
3296 | ev_stop (EV_A_ (W)w); |
|
|
3297 | |
|
|
3298 | EV_FREQUENT_CHECK; |
2214 | } |
3299 | } |
2215 | |
3300 | |
2216 | void noinline |
3301 | void noinline |
2217 | ev_timer_again (EV_P_ ev_timer *w) |
3302 | ev_timer_again (EV_P_ ev_timer *w) |
2218 | { |
3303 | { |
2219 | EV_FREQUENT_CHECK; |
3304 | EV_FREQUENT_CHECK; |
|
|
3305 | |
|
|
3306 | clear_pending (EV_A_ (W)w); |
2220 | |
3307 | |
2221 | if (ev_is_active (w)) |
3308 | if (ev_is_active (w)) |
2222 | { |
3309 | { |
2223 | if (w->repeat) |
3310 | if (w->repeat) |
2224 | { |
3311 | { |
… | |
… | |
2236 | } |
3323 | } |
2237 | |
3324 | |
2238 | EV_FREQUENT_CHECK; |
3325 | EV_FREQUENT_CHECK; |
2239 | } |
3326 | } |
2240 | |
3327 | |
|
|
3328 | ev_tstamp |
|
|
3329 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
3330 | { |
|
|
3331 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
3332 | } |
|
|
3333 | |
2241 | #if EV_PERIODIC_ENABLE |
3334 | #if EV_PERIODIC_ENABLE |
2242 | void noinline |
3335 | void noinline |
2243 | ev_periodic_start (EV_P_ ev_periodic *w) |
3336 | ev_periodic_start (EV_P_ ev_periodic *w) |
2244 | { |
3337 | { |
2245 | if (expect_false (ev_is_active (w))) |
3338 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2247 | |
3340 | |
2248 | if (w->reschedule_cb) |
3341 | if (w->reschedule_cb) |
2249 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3342 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2250 | else if (w->interval) |
3343 | else if (w->interval) |
2251 | { |
3344 | { |
2252 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3345 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2253 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3346 | periodic_recalc (EV_A_ w); |
2254 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2255 | } |
3347 | } |
2256 | else |
3348 | else |
2257 | ev_at (w) = w->offset; |
3349 | ev_at (w) = w->offset; |
2258 | |
3350 | |
2259 | EV_FREQUENT_CHECK; |
3351 | EV_FREQUENT_CHECK; |
… | |
… | |
2265 | ANHE_at_cache (periodics [ev_active (w)]); |
3357 | ANHE_at_cache (periodics [ev_active (w)]); |
2266 | upheap (periodics, ev_active (w)); |
3358 | upheap (periodics, ev_active (w)); |
2267 | |
3359 | |
2268 | EV_FREQUENT_CHECK; |
3360 | EV_FREQUENT_CHECK; |
2269 | |
3361 | |
2270 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3362 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2271 | } |
3363 | } |
2272 | |
3364 | |
2273 | void noinline |
3365 | void noinline |
2274 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3366 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2275 | { |
3367 | { |
… | |
… | |
2280 | EV_FREQUENT_CHECK; |
3372 | EV_FREQUENT_CHECK; |
2281 | |
3373 | |
2282 | { |
3374 | { |
2283 | int active = ev_active (w); |
3375 | int active = ev_active (w); |
2284 | |
3376 | |
2285 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3377 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2286 | |
3378 | |
2287 | --periodiccnt; |
3379 | --periodiccnt; |
2288 | |
3380 | |
2289 | if (expect_true (active < periodiccnt + HEAP0)) |
3381 | if (expect_true (active < periodiccnt + HEAP0)) |
2290 | { |
3382 | { |
2291 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3383 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2292 | adjustheap (periodics, periodiccnt, active); |
3384 | adjustheap (periodics, periodiccnt, active); |
2293 | } |
3385 | } |
2294 | } |
3386 | } |
2295 | |
3387 | |
2296 | EV_FREQUENT_CHECK; |
|
|
2297 | |
|
|
2298 | ev_stop (EV_A_ (W)w); |
3388 | ev_stop (EV_A_ (W)w); |
|
|
3389 | |
|
|
3390 | EV_FREQUENT_CHECK; |
2299 | } |
3391 | } |
2300 | |
3392 | |
2301 | void noinline |
3393 | void noinline |
2302 | ev_periodic_again (EV_P_ ev_periodic *w) |
3394 | ev_periodic_again (EV_P_ ev_periodic *w) |
2303 | { |
3395 | { |
… | |
… | |
2309 | |
3401 | |
2310 | #ifndef SA_RESTART |
3402 | #ifndef SA_RESTART |
2311 | # define SA_RESTART 0 |
3403 | # define SA_RESTART 0 |
2312 | #endif |
3404 | #endif |
2313 | |
3405 | |
|
|
3406 | #if EV_SIGNAL_ENABLE |
|
|
3407 | |
2314 | void noinline |
3408 | void noinline |
2315 | ev_signal_start (EV_P_ ev_signal *w) |
3409 | ev_signal_start (EV_P_ ev_signal *w) |
2316 | { |
3410 | { |
2317 | #if EV_MULTIPLICITY |
|
|
2318 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2319 | #endif |
|
|
2320 | if (expect_false (ev_is_active (w))) |
3411 | if (expect_false (ev_is_active (w))) |
2321 | return; |
3412 | return; |
2322 | |
3413 | |
2323 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3414 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2324 | |
3415 | |
2325 | evpipe_init (EV_A); |
3416 | #if EV_MULTIPLICITY |
|
|
3417 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3418 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2326 | |
3419 | |
2327 | EV_FREQUENT_CHECK; |
3420 | signals [w->signum - 1].loop = EV_A; |
|
|
3421 | #endif |
2328 | |
3422 | |
|
|
3423 | EV_FREQUENT_CHECK; |
|
|
3424 | |
|
|
3425 | #if EV_USE_SIGNALFD |
|
|
3426 | if (sigfd == -2) |
2329 | { |
3427 | { |
2330 | #ifndef _WIN32 |
3428 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2331 | sigset_t full, prev; |
3429 | if (sigfd < 0 && errno == EINVAL) |
2332 | sigfillset (&full); |
3430 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2333 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2334 | #endif |
|
|
2335 | |
3431 | |
2336 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
3432 | if (sigfd >= 0) |
|
|
3433 | { |
|
|
3434 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2337 | |
3435 | |
2338 | #ifndef _WIN32 |
3436 | sigemptyset (&sigfd_set); |
2339 | sigprocmask (SIG_SETMASK, &prev, 0); |
3437 | |
2340 | #endif |
3438 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3439 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3440 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3441 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3442 | } |
2341 | } |
3443 | } |
|
|
3444 | |
|
|
3445 | if (sigfd >= 0) |
|
|
3446 | { |
|
|
3447 | /* TODO: check .head */ |
|
|
3448 | sigaddset (&sigfd_set, w->signum); |
|
|
3449 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3450 | |
|
|
3451 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3452 | } |
|
|
3453 | #endif |
2342 | |
3454 | |
2343 | ev_start (EV_A_ (W)w, 1); |
3455 | ev_start (EV_A_ (W)w, 1); |
2344 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3456 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2345 | |
3457 | |
2346 | if (!((WL)w)->next) |
3458 | if (!((WL)w)->next) |
|
|
3459 | # if EV_USE_SIGNALFD |
|
|
3460 | if (sigfd < 0) /*TODO*/ |
|
|
3461 | # endif |
2347 | { |
3462 | { |
2348 | #if _WIN32 |
3463 | # ifdef _WIN32 |
|
|
3464 | evpipe_init (EV_A); |
|
|
3465 | |
2349 | signal (w->signum, ev_sighandler); |
3466 | signal (w->signum, ev_sighandler); |
2350 | #else |
3467 | # else |
2351 | struct sigaction sa; |
3468 | struct sigaction sa; |
|
|
3469 | |
|
|
3470 | evpipe_init (EV_A); |
|
|
3471 | |
2352 | sa.sa_handler = ev_sighandler; |
3472 | sa.sa_handler = ev_sighandler; |
2353 | sigfillset (&sa.sa_mask); |
3473 | sigfillset (&sa.sa_mask); |
2354 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3474 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2355 | sigaction (w->signum, &sa, 0); |
3475 | sigaction (w->signum, &sa, 0); |
|
|
3476 | |
|
|
3477 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3478 | { |
|
|
3479 | sigemptyset (&sa.sa_mask); |
|
|
3480 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3481 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3482 | } |
2356 | #endif |
3483 | #endif |
2357 | } |
3484 | } |
2358 | |
3485 | |
2359 | EV_FREQUENT_CHECK; |
3486 | EV_FREQUENT_CHECK; |
2360 | } |
3487 | } |
2361 | |
3488 | |
2362 | void noinline |
3489 | void noinline |
… | |
… | |
2370 | |
3497 | |
2371 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3498 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2372 | ev_stop (EV_A_ (W)w); |
3499 | ev_stop (EV_A_ (W)w); |
2373 | |
3500 | |
2374 | if (!signals [w->signum - 1].head) |
3501 | if (!signals [w->signum - 1].head) |
|
|
3502 | { |
|
|
3503 | #if EV_MULTIPLICITY |
|
|
3504 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3505 | #endif |
|
|
3506 | #if EV_USE_SIGNALFD |
|
|
3507 | if (sigfd >= 0) |
|
|
3508 | { |
|
|
3509 | sigset_t ss; |
|
|
3510 | |
|
|
3511 | sigemptyset (&ss); |
|
|
3512 | sigaddset (&ss, w->signum); |
|
|
3513 | sigdelset (&sigfd_set, w->signum); |
|
|
3514 | |
|
|
3515 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3516 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3517 | } |
|
|
3518 | else |
|
|
3519 | #endif |
2375 | signal (w->signum, SIG_DFL); |
3520 | signal (w->signum, SIG_DFL); |
|
|
3521 | } |
2376 | |
3522 | |
2377 | EV_FREQUENT_CHECK; |
3523 | EV_FREQUENT_CHECK; |
2378 | } |
3524 | } |
|
|
3525 | |
|
|
3526 | #endif |
|
|
3527 | |
|
|
3528 | #if EV_CHILD_ENABLE |
2379 | |
3529 | |
2380 | void |
3530 | void |
2381 | ev_child_start (EV_P_ ev_child *w) |
3531 | ev_child_start (EV_P_ ev_child *w) |
2382 | { |
3532 | { |
2383 | #if EV_MULTIPLICITY |
3533 | #if EV_MULTIPLICITY |
2384 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3534 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2385 | #endif |
3535 | #endif |
2386 | if (expect_false (ev_is_active (w))) |
3536 | if (expect_false (ev_is_active (w))) |
2387 | return; |
3537 | return; |
2388 | |
3538 | |
2389 | EV_FREQUENT_CHECK; |
3539 | EV_FREQUENT_CHECK; |
2390 | |
3540 | |
2391 | ev_start (EV_A_ (W)w, 1); |
3541 | ev_start (EV_A_ (W)w, 1); |
2392 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3542 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2393 | |
3543 | |
2394 | EV_FREQUENT_CHECK; |
3544 | EV_FREQUENT_CHECK; |
2395 | } |
3545 | } |
2396 | |
3546 | |
2397 | void |
3547 | void |
… | |
… | |
2401 | if (expect_false (!ev_is_active (w))) |
3551 | if (expect_false (!ev_is_active (w))) |
2402 | return; |
3552 | return; |
2403 | |
3553 | |
2404 | EV_FREQUENT_CHECK; |
3554 | EV_FREQUENT_CHECK; |
2405 | |
3555 | |
2406 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3556 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2407 | ev_stop (EV_A_ (W)w); |
3557 | ev_stop (EV_A_ (W)w); |
2408 | |
3558 | |
2409 | EV_FREQUENT_CHECK; |
3559 | EV_FREQUENT_CHECK; |
2410 | } |
3560 | } |
|
|
3561 | |
|
|
3562 | #endif |
2411 | |
3563 | |
2412 | #if EV_STAT_ENABLE |
3564 | #if EV_STAT_ENABLE |
2413 | |
3565 | |
2414 | # ifdef _WIN32 |
3566 | # ifdef _WIN32 |
2415 | # undef lstat |
3567 | # undef lstat |
2416 | # define lstat(a,b) _stati64 (a,b) |
3568 | # define lstat(a,b) _stati64 (a,b) |
2417 | # endif |
3569 | # endif |
2418 | |
3570 | |
2419 | #define DEF_STAT_INTERVAL 5.0074891 |
3571 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3572 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2420 | #define MIN_STAT_INTERVAL 0.1074891 |
3573 | #define MIN_STAT_INTERVAL 0.1074891 |
2421 | |
3574 | |
2422 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3575 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2423 | |
3576 | |
2424 | #if EV_USE_INOTIFY |
3577 | #if EV_USE_INOTIFY |
2425 | # define EV_INOTIFY_BUFSIZE 8192 |
3578 | |
|
|
3579 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3580 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2426 | |
3581 | |
2427 | static void noinline |
3582 | static void noinline |
2428 | infy_add (EV_P_ ev_stat *w) |
3583 | infy_add (EV_P_ ev_stat *w) |
2429 | { |
3584 | { |
2430 | 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); |
3585 | 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); |
2431 | |
3586 | |
2432 | if (w->wd < 0) |
3587 | if (w->wd >= 0) |
|
|
3588 | { |
|
|
3589 | struct statfs sfs; |
|
|
3590 | |
|
|
3591 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3592 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3593 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3594 | |
|
|
3595 | if (!fs_2625) |
|
|
3596 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3597 | else if (!statfs (w->path, &sfs) |
|
|
3598 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3599 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3600 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3601 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3602 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3603 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3604 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3605 | else |
|
|
3606 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2433 | { |
3607 | } |
2434 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3608 | else |
|
|
3609 | { |
|
|
3610 | /* can't use inotify, continue to stat */ |
|
|
3611 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2435 | |
3612 | |
2436 | /* monitor some parent directory for speedup hints */ |
3613 | /* if path is not there, monitor some parent directory for speedup hints */ |
2437 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3614 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2438 | /* but an efficiency issue only */ |
3615 | /* but an efficiency issue only */ |
2439 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3616 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2440 | { |
3617 | { |
2441 | char path [4096]; |
3618 | char path [4096]; |
… | |
… | |
2446 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3623 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2447 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3624 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2448 | |
3625 | |
2449 | char *pend = strrchr (path, '/'); |
3626 | char *pend = strrchr (path, '/'); |
2450 | |
3627 | |
2451 | if (!pend) |
3628 | if (!pend || pend == path) |
2452 | break; /* whoops, no '/', complain to your admin */ |
3629 | break; |
2453 | |
3630 | |
2454 | *pend = 0; |
3631 | *pend = 0; |
2455 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3632 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2456 | } |
3633 | } |
2457 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3634 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2458 | } |
3635 | } |
2459 | } |
3636 | } |
2460 | else |
|
|
2461 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2462 | |
3637 | |
2463 | if (w->wd >= 0) |
3638 | if (w->wd >= 0) |
2464 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3639 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3640 | |
|
|
3641 | /* now re-arm timer, if required */ |
|
|
3642 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3643 | ev_timer_again (EV_A_ &w->timer); |
|
|
3644 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2465 | } |
3645 | } |
2466 | |
3646 | |
2467 | static void noinline |
3647 | static void noinline |
2468 | infy_del (EV_P_ ev_stat *w) |
3648 | infy_del (EV_P_ ev_stat *w) |
2469 | { |
3649 | { |
… | |
… | |
2472 | |
3652 | |
2473 | if (wd < 0) |
3653 | if (wd < 0) |
2474 | return; |
3654 | return; |
2475 | |
3655 | |
2476 | w->wd = -2; |
3656 | w->wd = -2; |
2477 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3657 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2478 | wlist_del (&fs_hash [slot].head, (WL)w); |
3658 | wlist_del (&fs_hash [slot].head, (WL)w); |
2479 | |
3659 | |
2480 | /* remove this watcher, if others are watching it, they will rearm */ |
3660 | /* remove this watcher, if others are watching it, they will rearm */ |
2481 | inotify_rm_watch (fs_fd, wd); |
3661 | inotify_rm_watch (fs_fd, wd); |
2482 | } |
3662 | } |
… | |
… | |
2484 | static void noinline |
3664 | static void noinline |
2485 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3665 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2486 | { |
3666 | { |
2487 | if (slot < 0) |
3667 | if (slot < 0) |
2488 | /* overflow, need to check for all hash slots */ |
3668 | /* overflow, need to check for all hash slots */ |
2489 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3669 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2490 | infy_wd (EV_A_ slot, wd, ev); |
3670 | infy_wd (EV_A_ slot, wd, ev); |
2491 | else |
3671 | else |
2492 | { |
3672 | { |
2493 | WL w_; |
3673 | WL w_; |
2494 | |
3674 | |
2495 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3675 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2496 | { |
3676 | { |
2497 | ev_stat *w = (ev_stat *)w_; |
3677 | ev_stat *w = (ev_stat *)w_; |
2498 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3678 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2499 | |
3679 | |
2500 | if (w->wd == wd || wd == -1) |
3680 | if (w->wd == wd || wd == -1) |
2501 | { |
3681 | { |
2502 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3682 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2503 | { |
3683 | { |
|
|
3684 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2504 | w->wd = -1; |
3685 | w->wd = -1; |
2505 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3686 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2506 | } |
3687 | } |
2507 | |
3688 | |
2508 | stat_timer_cb (EV_A_ &w->timer, 0); |
3689 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2513 | |
3694 | |
2514 | static void |
3695 | static void |
2515 | infy_cb (EV_P_ ev_io *w, int revents) |
3696 | infy_cb (EV_P_ ev_io *w, int revents) |
2516 | { |
3697 | { |
2517 | char buf [EV_INOTIFY_BUFSIZE]; |
3698 | char buf [EV_INOTIFY_BUFSIZE]; |
2518 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2519 | int ofs; |
3699 | int ofs; |
2520 | int len = read (fs_fd, buf, sizeof (buf)); |
3700 | int len = read (fs_fd, buf, sizeof (buf)); |
2521 | |
3701 | |
2522 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3702 | for (ofs = 0; ofs < len; ) |
|
|
3703 | { |
|
|
3704 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2523 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3705 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3706 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3707 | } |
2524 | } |
3708 | } |
2525 | |
3709 | |
2526 | void inline_size |
3710 | inline_size void ecb_cold |
2527 | infy_init (EV_P) |
3711 | ev_check_2625 (EV_P) |
2528 | { |
3712 | { |
2529 | if (fs_fd != -2) |
|
|
2530 | return; |
|
|
2531 | |
|
|
2532 | /* kernels < 2.6.25 are borked |
3713 | /* kernels < 2.6.25 are borked |
2533 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3714 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2534 | */ |
3715 | */ |
2535 | { |
3716 | if (ev_linux_version () < 0x020619) |
2536 | struct utsname buf; |
3717 | return; |
2537 | int major, minor, micro; |
|
|
2538 | |
3718 | |
|
|
3719 | fs_2625 = 1; |
|
|
3720 | } |
|
|
3721 | |
|
|
3722 | inline_size int |
|
|
3723 | infy_newfd (void) |
|
|
3724 | { |
|
|
3725 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3726 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3727 | if (fd >= 0) |
|
|
3728 | return fd; |
|
|
3729 | #endif |
|
|
3730 | return inotify_init (); |
|
|
3731 | } |
|
|
3732 | |
|
|
3733 | inline_size void |
|
|
3734 | infy_init (EV_P) |
|
|
3735 | { |
|
|
3736 | if (fs_fd != -2) |
|
|
3737 | return; |
|
|
3738 | |
2539 | fs_fd = -1; |
3739 | fs_fd = -1; |
2540 | |
3740 | |
2541 | if (uname (&buf)) |
3741 | ev_check_2625 (EV_A); |
2542 | return; |
|
|
2543 | |
3742 | |
2544 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2545 | return; |
|
|
2546 | |
|
|
2547 | if (major < 2 |
|
|
2548 | || (major == 2 && minor < 6) |
|
|
2549 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2550 | return; |
|
|
2551 | } |
|
|
2552 | |
|
|
2553 | fs_fd = inotify_init (); |
3743 | fs_fd = infy_newfd (); |
2554 | |
3744 | |
2555 | if (fs_fd >= 0) |
3745 | if (fs_fd >= 0) |
2556 | { |
3746 | { |
|
|
3747 | fd_intern (fs_fd); |
2557 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3748 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2558 | ev_set_priority (&fs_w, EV_MAXPRI); |
3749 | ev_set_priority (&fs_w, EV_MAXPRI); |
2559 | ev_io_start (EV_A_ &fs_w); |
3750 | ev_io_start (EV_A_ &fs_w); |
|
|
3751 | ev_unref (EV_A); |
2560 | } |
3752 | } |
2561 | } |
3753 | } |
2562 | |
3754 | |
2563 | void inline_size |
3755 | inline_size void |
2564 | infy_fork (EV_P) |
3756 | infy_fork (EV_P) |
2565 | { |
3757 | { |
2566 | int slot; |
3758 | int slot; |
2567 | |
3759 | |
2568 | if (fs_fd < 0) |
3760 | if (fs_fd < 0) |
2569 | return; |
3761 | return; |
2570 | |
3762 | |
|
|
3763 | ev_ref (EV_A); |
|
|
3764 | ev_io_stop (EV_A_ &fs_w); |
2571 | close (fs_fd); |
3765 | close (fs_fd); |
2572 | fs_fd = inotify_init (); |
3766 | fs_fd = infy_newfd (); |
2573 | |
3767 | |
|
|
3768 | if (fs_fd >= 0) |
|
|
3769 | { |
|
|
3770 | fd_intern (fs_fd); |
|
|
3771 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3772 | ev_io_start (EV_A_ &fs_w); |
|
|
3773 | ev_unref (EV_A); |
|
|
3774 | } |
|
|
3775 | |
2574 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3776 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2575 | { |
3777 | { |
2576 | WL w_ = fs_hash [slot].head; |
3778 | WL w_ = fs_hash [slot].head; |
2577 | fs_hash [slot].head = 0; |
3779 | fs_hash [slot].head = 0; |
2578 | |
3780 | |
2579 | while (w_) |
3781 | while (w_) |
… | |
… | |
2584 | w->wd = -1; |
3786 | w->wd = -1; |
2585 | |
3787 | |
2586 | if (fs_fd >= 0) |
3788 | if (fs_fd >= 0) |
2587 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3789 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2588 | else |
3790 | else |
|
|
3791 | { |
|
|
3792 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3793 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2589 | ev_timer_start (EV_A_ &w->timer); |
3794 | ev_timer_again (EV_A_ &w->timer); |
|
|
3795 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3796 | } |
2590 | } |
3797 | } |
2591 | } |
3798 | } |
2592 | } |
3799 | } |
2593 | |
3800 | |
2594 | #endif |
3801 | #endif |
… | |
… | |
2611 | static void noinline |
3818 | static void noinline |
2612 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3819 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2613 | { |
3820 | { |
2614 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3821 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2615 | |
3822 | |
2616 | /* we copy this here each the time so that */ |
3823 | ev_statdata prev = w->attr; |
2617 | /* prev has the old value when the callback gets invoked */ |
|
|
2618 | w->prev = w->attr; |
|
|
2619 | ev_stat_stat (EV_A_ w); |
3824 | ev_stat_stat (EV_A_ w); |
2620 | |
3825 | |
2621 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3826 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2622 | if ( |
3827 | if ( |
2623 | w->prev.st_dev != w->attr.st_dev |
3828 | prev.st_dev != w->attr.st_dev |
2624 | || w->prev.st_ino != w->attr.st_ino |
3829 | || prev.st_ino != w->attr.st_ino |
2625 | || w->prev.st_mode != w->attr.st_mode |
3830 | || prev.st_mode != w->attr.st_mode |
2626 | || w->prev.st_nlink != w->attr.st_nlink |
3831 | || prev.st_nlink != w->attr.st_nlink |
2627 | || w->prev.st_uid != w->attr.st_uid |
3832 | || prev.st_uid != w->attr.st_uid |
2628 | || w->prev.st_gid != w->attr.st_gid |
3833 | || prev.st_gid != w->attr.st_gid |
2629 | || w->prev.st_rdev != w->attr.st_rdev |
3834 | || prev.st_rdev != w->attr.st_rdev |
2630 | || w->prev.st_size != w->attr.st_size |
3835 | || prev.st_size != w->attr.st_size |
2631 | || w->prev.st_atime != w->attr.st_atime |
3836 | || prev.st_atime != w->attr.st_atime |
2632 | || w->prev.st_mtime != w->attr.st_mtime |
3837 | || prev.st_mtime != w->attr.st_mtime |
2633 | || w->prev.st_ctime != w->attr.st_ctime |
3838 | || prev.st_ctime != w->attr.st_ctime |
2634 | ) { |
3839 | ) { |
|
|
3840 | /* we only update w->prev on actual differences */ |
|
|
3841 | /* in case we test more often than invoke the callback, */ |
|
|
3842 | /* to ensure that prev is always different to attr */ |
|
|
3843 | w->prev = prev; |
|
|
3844 | |
2635 | #if EV_USE_INOTIFY |
3845 | #if EV_USE_INOTIFY |
2636 | if (fs_fd >= 0) |
3846 | if (fs_fd >= 0) |
2637 | { |
3847 | { |
2638 | infy_del (EV_A_ w); |
3848 | infy_del (EV_A_ w); |
2639 | infy_add (EV_A_ w); |
3849 | infy_add (EV_A_ w); |
… | |
… | |
2649 | ev_stat_start (EV_P_ ev_stat *w) |
3859 | ev_stat_start (EV_P_ ev_stat *w) |
2650 | { |
3860 | { |
2651 | if (expect_false (ev_is_active (w))) |
3861 | if (expect_false (ev_is_active (w))) |
2652 | return; |
3862 | return; |
2653 | |
3863 | |
2654 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2655 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2656 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2657 | |
|
|
2658 | ev_stat_stat (EV_A_ w); |
3864 | ev_stat_stat (EV_A_ w); |
2659 | |
3865 | |
|
|
3866 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2660 | if (w->interval < MIN_STAT_INTERVAL) |
3867 | w->interval = MIN_STAT_INTERVAL; |
2661 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2662 | |
3868 | |
2663 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3869 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2664 | ev_set_priority (&w->timer, ev_priority (w)); |
3870 | ev_set_priority (&w->timer, ev_priority (w)); |
2665 | |
3871 | |
2666 | #if EV_USE_INOTIFY |
3872 | #if EV_USE_INOTIFY |
2667 | infy_init (EV_A); |
3873 | infy_init (EV_A); |
2668 | |
3874 | |
2669 | if (fs_fd >= 0) |
3875 | if (fs_fd >= 0) |
2670 | infy_add (EV_A_ w); |
3876 | infy_add (EV_A_ w); |
2671 | else |
3877 | else |
2672 | #endif |
3878 | #endif |
|
|
3879 | { |
2673 | ev_timer_start (EV_A_ &w->timer); |
3880 | ev_timer_again (EV_A_ &w->timer); |
|
|
3881 | ev_unref (EV_A); |
|
|
3882 | } |
2674 | |
3883 | |
2675 | ev_start (EV_A_ (W)w, 1); |
3884 | ev_start (EV_A_ (W)w, 1); |
2676 | |
3885 | |
2677 | EV_FREQUENT_CHECK; |
3886 | EV_FREQUENT_CHECK; |
2678 | } |
3887 | } |
… | |
… | |
2687 | EV_FREQUENT_CHECK; |
3896 | EV_FREQUENT_CHECK; |
2688 | |
3897 | |
2689 | #if EV_USE_INOTIFY |
3898 | #if EV_USE_INOTIFY |
2690 | infy_del (EV_A_ w); |
3899 | infy_del (EV_A_ w); |
2691 | #endif |
3900 | #endif |
|
|
3901 | |
|
|
3902 | if (ev_is_active (&w->timer)) |
|
|
3903 | { |
|
|
3904 | ev_ref (EV_A); |
2692 | ev_timer_stop (EV_A_ &w->timer); |
3905 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3906 | } |
2693 | |
3907 | |
2694 | ev_stop (EV_A_ (W)w); |
3908 | ev_stop (EV_A_ (W)w); |
2695 | |
3909 | |
2696 | EV_FREQUENT_CHECK; |
3910 | EV_FREQUENT_CHECK; |
2697 | } |
3911 | } |
… | |
… | |
2742 | |
3956 | |
2743 | EV_FREQUENT_CHECK; |
3957 | EV_FREQUENT_CHECK; |
2744 | } |
3958 | } |
2745 | #endif |
3959 | #endif |
2746 | |
3960 | |
|
|
3961 | #if EV_PREPARE_ENABLE |
2747 | void |
3962 | void |
2748 | ev_prepare_start (EV_P_ ev_prepare *w) |
3963 | ev_prepare_start (EV_P_ ev_prepare *w) |
2749 | { |
3964 | { |
2750 | if (expect_false (ev_is_active (w))) |
3965 | if (expect_false (ev_is_active (w))) |
2751 | return; |
3966 | return; |
… | |
… | |
2777 | |
3992 | |
2778 | ev_stop (EV_A_ (W)w); |
3993 | ev_stop (EV_A_ (W)w); |
2779 | |
3994 | |
2780 | EV_FREQUENT_CHECK; |
3995 | EV_FREQUENT_CHECK; |
2781 | } |
3996 | } |
|
|
3997 | #endif |
2782 | |
3998 | |
|
|
3999 | #if EV_CHECK_ENABLE |
2783 | void |
4000 | void |
2784 | ev_check_start (EV_P_ ev_check *w) |
4001 | ev_check_start (EV_P_ ev_check *w) |
2785 | { |
4002 | { |
2786 | if (expect_false (ev_is_active (w))) |
4003 | if (expect_false (ev_is_active (w))) |
2787 | return; |
4004 | return; |
… | |
… | |
2813 | |
4030 | |
2814 | ev_stop (EV_A_ (W)w); |
4031 | ev_stop (EV_A_ (W)w); |
2815 | |
4032 | |
2816 | EV_FREQUENT_CHECK; |
4033 | EV_FREQUENT_CHECK; |
2817 | } |
4034 | } |
|
|
4035 | #endif |
2818 | |
4036 | |
2819 | #if EV_EMBED_ENABLE |
4037 | #if EV_EMBED_ENABLE |
2820 | void noinline |
4038 | void noinline |
2821 | ev_embed_sweep (EV_P_ ev_embed *w) |
4039 | ev_embed_sweep (EV_P_ ev_embed *w) |
2822 | { |
4040 | { |
2823 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4041 | ev_run (w->other, EVRUN_NOWAIT); |
2824 | } |
4042 | } |
2825 | |
4043 | |
2826 | static void |
4044 | static void |
2827 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4045 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2828 | { |
4046 | { |
2829 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4047 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2830 | |
4048 | |
2831 | if (ev_cb (w)) |
4049 | if (ev_cb (w)) |
2832 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4050 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2833 | else |
4051 | else |
2834 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4052 | ev_run (w->other, EVRUN_NOWAIT); |
2835 | } |
4053 | } |
2836 | |
4054 | |
2837 | static void |
4055 | static void |
2838 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4056 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2839 | { |
4057 | { |
2840 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4058 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2841 | |
4059 | |
2842 | { |
4060 | { |
2843 | struct ev_loop *loop = w->other; |
4061 | EV_P = w->other; |
2844 | |
4062 | |
2845 | while (fdchangecnt) |
4063 | while (fdchangecnt) |
2846 | { |
4064 | { |
2847 | fd_reify (EV_A); |
4065 | fd_reify (EV_A); |
2848 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4066 | ev_run (EV_A_ EVRUN_NOWAIT); |
2849 | } |
4067 | } |
2850 | } |
4068 | } |
2851 | } |
4069 | } |
2852 | |
4070 | |
2853 | static void |
4071 | static void |
2854 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
4072 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2855 | { |
4073 | { |
2856 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4074 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2857 | |
4075 | |
|
|
4076 | ev_embed_stop (EV_A_ w); |
|
|
4077 | |
2858 | { |
4078 | { |
2859 | struct ev_loop *loop = w->other; |
4079 | EV_P = w->other; |
2860 | |
4080 | |
2861 | ev_loop_fork (EV_A); |
4081 | ev_loop_fork (EV_A); |
|
|
4082 | ev_run (EV_A_ EVRUN_NOWAIT); |
2862 | } |
4083 | } |
|
|
4084 | |
|
|
4085 | ev_embed_start (EV_A_ w); |
2863 | } |
4086 | } |
2864 | |
4087 | |
2865 | #if 0 |
4088 | #if 0 |
2866 | static void |
4089 | static void |
2867 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4090 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2875 | { |
4098 | { |
2876 | if (expect_false (ev_is_active (w))) |
4099 | if (expect_false (ev_is_active (w))) |
2877 | return; |
4100 | return; |
2878 | |
4101 | |
2879 | { |
4102 | { |
2880 | struct ev_loop *loop = w->other; |
4103 | EV_P = w->other; |
2881 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4104 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2882 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4105 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2883 | } |
4106 | } |
2884 | |
4107 | |
2885 | EV_FREQUENT_CHECK; |
4108 | EV_FREQUENT_CHECK; |
2886 | |
4109 | |
… | |
… | |
2912 | |
4135 | |
2913 | ev_io_stop (EV_A_ &w->io); |
4136 | ev_io_stop (EV_A_ &w->io); |
2914 | ev_prepare_stop (EV_A_ &w->prepare); |
4137 | ev_prepare_stop (EV_A_ &w->prepare); |
2915 | ev_fork_stop (EV_A_ &w->fork); |
4138 | ev_fork_stop (EV_A_ &w->fork); |
2916 | |
4139 | |
|
|
4140 | ev_stop (EV_A_ (W)w); |
|
|
4141 | |
2917 | EV_FREQUENT_CHECK; |
4142 | EV_FREQUENT_CHECK; |
2918 | } |
4143 | } |
2919 | #endif |
4144 | #endif |
2920 | |
4145 | |
2921 | #if EV_FORK_ENABLE |
4146 | #if EV_FORK_ENABLE |
… | |
… | |
2954 | |
4179 | |
2955 | EV_FREQUENT_CHECK; |
4180 | EV_FREQUENT_CHECK; |
2956 | } |
4181 | } |
2957 | #endif |
4182 | #endif |
2958 | |
4183 | |
|
|
4184 | #if EV_CLEANUP_ENABLE |
|
|
4185 | void |
|
|
4186 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
4187 | { |
|
|
4188 | if (expect_false (ev_is_active (w))) |
|
|
4189 | return; |
|
|
4190 | |
|
|
4191 | EV_FREQUENT_CHECK; |
|
|
4192 | |
|
|
4193 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4194 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4195 | cleanups [cleanupcnt - 1] = w; |
|
|
4196 | |
|
|
4197 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4198 | ev_unref (EV_A); |
|
|
4199 | EV_FREQUENT_CHECK; |
|
|
4200 | } |
|
|
4201 | |
|
|
4202 | void |
|
|
4203 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
4204 | { |
|
|
4205 | clear_pending (EV_A_ (W)w); |
|
|
4206 | if (expect_false (!ev_is_active (w))) |
|
|
4207 | return; |
|
|
4208 | |
|
|
4209 | EV_FREQUENT_CHECK; |
|
|
4210 | ev_ref (EV_A); |
|
|
4211 | |
|
|
4212 | { |
|
|
4213 | int active = ev_active (w); |
|
|
4214 | |
|
|
4215 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4216 | ev_active (cleanups [active - 1]) = active; |
|
|
4217 | } |
|
|
4218 | |
|
|
4219 | ev_stop (EV_A_ (W)w); |
|
|
4220 | |
|
|
4221 | EV_FREQUENT_CHECK; |
|
|
4222 | } |
|
|
4223 | #endif |
|
|
4224 | |
2959 | #if EV_ASYNC_ENABLE |
4225 | #if EV_ASYNC_ENABLE |
2960 | void |
4226 | void |
2961 | ev_async_start (EV_P_ ev_async *w) |
4227 | ev_async_start (EV_P_ ev_async *w) |
2962 | { |
4228 | { |
2963 | if (expect_false (ev_is_active (w))) |
4229 | if (expect_false (ev_is_active (w))) |
2964 | return; |
4230 | return; |
2965 | |
4231 | |
|
|
4232 | w->sent = 0; |
|
|
4233 | |
2966 | evpipe_init (EV_A); |
4234 | evpipe_init (EV_A); |
2967 | |
4235 | |
2968 | EV_FREQUENT_CHECK; |
4236 | EV_FREQUENT_CHECK; |
2969 | |
4237 | |
2970 | ev_start (EV_A_ (W)w, ++asynccnt); |
4238 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
2997 | |
4265 | |
2998 | void |
4266 | void |
2999 | ev_async_send (EV_P_ ev_async *w) |
4267 | ev_async_send (EV_P_ ev_async *w) |
3000 | { |
4268 | { |
3001 | w->sent = 1; |
4269 | w->sent = 1; |
3002 | evpipe_write (EV_A_ &gotasync); |
4270 | evpipe_write (EV_A_ &async_pending); |
3003 | } |
4271 | } |
3004 | #endif |
4272 | #endif |
3005 | |
4273 | |
3006 | /*****************************************************************************/ |
4274 | /*****************************************************************************/ |
3007 | |
4275 | |
… | |
… | |
3047 | { |
4315 | { |
3048 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4316 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3049 | |
4317 | |
3050 | if (expect_false (!once)) |
4318 | if (expect_false (!once)) |
3051 | { |
4319 | { |
3052 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4320 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3053 | return; |
4321 | return; |
3054 | } |
4322 | } |
3055 | |
4323 | |
3056 | once->cb = cb; |
4324 | once->cb = cb; |
3057 | once->arg = arg; |
4325 | once->arg = arg; |
… | |
… | |
3069 | ev_timer_set (&once->to, timeout, 0.); |
4337 | ev_timer_set (&once->to, timeout, 0.); |
3070 | ev_timer_start (EV_A_ &once->to); |
4338 | ev_timer_start (EV_A_ &once->to); |
3071 | } |
4339 | } |
3072 | } |
4340 | } |
3073 | |
4341 | |
|
|
4342 | /*****************************************************************************/ |
|
|
4343 | |
|
|
4344 | #if EV_WALK_ENABLE |
|
|
4345 | void ecb_cold |
|
|
4346 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
4347 | { |
|
|
4348 | int i, j; |
|
|
4349 | ev_watcher_list *wl, *wn; |
|
|
4350 | |
|
|
4351 | if (types & (EV_IO | EV_EMBED)) |
|
|
4352 | for (i = 0; i < anfdmax; ++i) |
|
|
4353 | for (wl = anfds [i].head; wl; ) |
|
|
4354 | { |
|
|
4355 | wn = wl->next; |
|
|
4356 | |
|
|
4357 | #if EV_EMBED_ENABLE |
|
|
4358 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
4359 | { |
|
|
4360 | if (types & EV_EMBED) |
|
|
4361 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
4362 | } |
|
|
4363 | else |
|
|
4364 | #endif |
|
|
4365 | #if EV_USE_INOTIFY |
|
|
4366 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4367 | ; |
|
|
4368 | else |
|
|
4369 | #endif |
|
|
4370 | if ((ev_io *)wl != &pipe_w) |
|
|
4371 | if (types & EV_IO) |
|
|
4372 | cb (EV_A_ EV_IO, wl); |
|
|
4373 | |
|
|
4374 | wl = wn; |
|
|
4375 | } |
|
|
4376 | |
|
|
4377 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4378 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4379 | #if EV_STAT_ENABLE |
|
|
4380 | /*TODO: timer is not always active*/ |
|
|
4381 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4382 | { |
|
|
4383 | if (types & EV_STAT) |
|
|
4384 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4385 | } |
|
|
4386 | else |
|
|
4387 | #endif |
|
|
4388 | if (types & EV_TIMER) |
|
|
4389 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4390 | |
|
|
4391 | #if EV_PERIODIC_ENABLE |
|
|
4392 | if (types & EV_PERIODIC) |
|
|
4393 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4394 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4395 | #endif |
|
|
4396 | |
|
|
4397 | #if EV_IDLE_ENABLE |
|
|
4398 | if (types & EV_IDLE) |
|
|
4399 | for (j = NUMPRI; j--; ) |
|
|
4400 | for (i = idlecnt [j]; i--; ) |
|
|
4401 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4402 | #endif |
|
|
4403 | |
|
|
4404 | #if EV_FORK_ENABLE |
|
|
4405 | if (types & EV_FORK) |
|
|
4406 | for (i = forkcnt; i--; ) |
|
|
4407 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4408 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4409 | #endif |
|
|
4410 | |
|
|
4411 | #if EV_ASYNC_ENABLE |
|
|
4412 | if (types & EV_ASYNC) |
|
|
4413 | for (i = asynccnt; i--; ) |
|
|
4414 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4415 | #endif |
|
|
4416 | |
|
|
4417 | #if EV_PREPARE_ENABLE |
|
|
4418 | if (types & EV_PREPARE) |
|
|
4419 | for (i = preparecnt; i--; ) |
|
|
4420 | # if EV_EMBED_ENABLE |
|
|
4421 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4422 | # endif |
|
|
4423 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4424 | #endif |
|
|
4425 | |
|
|
4426 | #if EV_CHECK_ENABLE |
|
|
4427 | if (types & EV_CHECK) |
|
|
4428 | for (i = checkcnt; i--; ) |
|
|
4429 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4430 | #endif |
|
|
4431 | |
|
|
4432 | #if EV_SIGNAL_ENABLE |
|
|
4433 | if (types & EV_SIGNAL) |
|
|
4434 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4435 | for (wl = signals [i].head; wl; ) |
|
|
4436 | { |
|
|
4437 | wn = wl->next; |
|
|
4438 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4439 | wl = wn; |
|
|
4440 | } |
|
|
4441 | #endif |
|
|
4442 | |
|
|
4443 | #if EV_CHILD_ENABLE |
|
|
4444 | if (types & EV_CHILD) |
|
|
4445 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4446 | for (wl = childs [i]; wl; ) |
|
|
4447 | { |
|
|
4448 | wn = wl->next; |
|
|
4449 | cb (EV_A_ EV_CHILD, wl); |
|
|
4450 | wl = wn; |
|
|
4451 | } |
|
|
4452 | #endif |
|
|
4453 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4454 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4455 | } |
|
|
4456 | #endif |
|
|
4457 | |
3074 | #if EV_MULTIPLICITY |
4458 | #if EV_MULTIPLICITY |
3075 | #include "ev_wrap.h" |
4459 | #include "ev_wrap.h" |
3076 | #endif |
4460 | #endif |
3077 | |
4461 | |
3078 | #ifdef __cplusplus |
|
|
3079 | } |
|
|
3080 | #endif |
|
|
3081 | |
|
|