1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
… | |
… | |
57 | # endif |
53 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
54 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
55 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
56 | # endif |
61 | # endif |
57 | # endif |
|
|
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
59 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
60 | # endif |
63 | |
61 | |
64 | # if HAVE_CLOCK_GETTIME |
62 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
63 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
64 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
75 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
77 | # endif |
75 | # endif |
78 | # endif |
76 | # endif |
79 | |
77 | |
|
|
78 | # if HAVE_NANOSLEEP |
80 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
81 | # if HAVE_NANOSLEEP |
|
|
82 | # define EV_USE_NANOSLEEP 1 |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
81 | # endif |
83 | # else |
82 | # else |
|
|
83 | # undef EV_USE_NANOSLEEP |
84 | # define EV_USE_NANOSLEEP 0 |
84 | # define EV_USE_NANOSLEEP 0 |
|
|
85 | # endif |
|
|
86 | |
|
|
87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
88 | # ifndef EV_USE_SELECT |
|
|
89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
85 | # endif |
90 | # endif |
|
|
91 | # else |
|
|
92 | # undef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT 0 |
86 | # endif |
94 | # endif |
87 | |
95 | |
|
|
96 | # if HAVE_POLL && HAVE_POLL_H |
88 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
90 | # define EV_USE_SELECT 1 |
|
|
91 | # else |
|
|
92 | # define EV_USE_SELECT 0 |
|
|
93 | # endif |
99 | # endif |
94 | # endif |
|
|
95 | |
|
|
96 | # ifndef EV_USE_POLL |
|
|
97 | # if HAVE_POLL && HAVE_POLL_H |
|
|
98 | # define EV_USE_POLL 1 |
|
|
99 | # else |
100 | # else |
|
|
101 | # undef EV_USE_POLL |
100 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
101 | # endif |
|
|
102 | # endif |
103 | # endif |
103 | |
104 | |
104 | # ifndef EV_USE_EPOLL |
|
|
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
106 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
107 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
108 | # define EV_USE_EPOLL 0 |
|
|
109 | # endif |
108 | # endif |
|
|
109 | # else |
|
|
110 | # undef EV_USE_EPOLL |
|
|
111 | # define EV_USE_EPOLL 0 |
110 | # endif |
112 | # endif |
111 | |
113 | |
|
|
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
112 | # ifndef EV_USE_KQUEUE |
115 | # ifndef EV_USE_KQUEUE |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
114 | # define EV_USE_KQUEUE 1 |
|
|
115 | # else |
|
|
116 | # define EV_USE_KQUEUE 0 |
|
|
117 | # endif |
117 | # endif |
|
|
118 | # else |
|
|
119 | # undef EV_USE_KQUEUE |
|
|
120 | # define EV_USE_KQUEUE 0 |
118 | # endif |
121 | # endif |
119 | |
122 | |
120 | # ifndef EV_USE_PORT |
|
|
121 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
122 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
123 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
124 | # define EV_USE_PORT 0 |
|
|
125 | # endif |
126 | # endif |
|
|
127 | # else |
|
|
128 | # undef EV_USE_PORT |
|
|
129 | # define EV_USE_PORT 0 |
126 | # endif |
130 | # endif |
127 | |
131 | |
128 | # ifndef EV_USE_INOTIFY |
|
|
129 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
130 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
131 | # else |
|
|
132 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
133 | # endif |
135 | # endif |
|
|
136 | # else |
|
|
137 | # undef EV_USE_INOTIFY |
|
|
138 | # define EV_USE_INOTIFY 0 |
134 | # endif |
139 | # endif |
135 | |
140 | |
|
|
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
136 | # ifndef EV_USE_EVENTFD |
142 | # ifndef EV_USE_SIGNALFD |
137 | # if HAVE_EVENTFD |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
138 | # define EV_USE_EVENTFD 1 |
|
|
139 | # else |
|
|
140 | # define EV_USE_EVENTFD 0 |
|
|
141 | # endif |
144 | # endif |
|
|
145 | # else |
|
|
146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
|
|
148 | # endif |
|
|
149 | |
|
|
150 | # if HAVE_EVENTFD |
|
|
151 | # ifndef EV_USE_EVENTFD |
|
|
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
153 | # endif |
|
|
154 | # else |
|
|
155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
142 | # endif |
157 | # endif |
143 | |
158 | |
144 | #endif |
159 | #endif |
145 | |
160 | |
146 | #include <math.h> |
161 | #include <math.h> |
147 | #include <stdlib.h> |
162 | #include <stdlib.h> |
|
|
163 | #include <string.h> |
148 | #include <fcntl.h> |
164 | #include <fcntl.h> |
149 | #include <stddef.h> |
165 | #include <stddef.h> |
150 | |
166 | |
151 | #include <stdio.h> |
167 | #include <stdio.h> |
152 | |
168 | |
153 | #include <assert.h> |
169 | #include <assert.h> |
154 | #include <errno.h> |
170 | #include <errno.h> |
155 | #include <sys/types.h> |
171 | #include <sys/types.h> |
156 | #include <time.h> |
172 | #include <time.h> |
|
|
173 | #include <limits.h> |
157 | |
174 | |
158 | #include <signal.h> |
175 | #include <signal.h> |
159 | |
176 | |
160 | #ifdef EV_H |
177 | #ifdef EV_H |
161 | # include EV_H |
178 | # include EV_H |
162 | #else |
179 | #else |
163 | # include "ev.h" |
180 | # include "ev.h" |
164 | #endif |
181 | #endif |
|
|
182 | |
|
|
183 | EV_CPP(extern "C" {) |
165 | |
184 | |
166 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
167 | # include <sys/time.h> |
186 | # include <sys/time.h> |
168 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
169 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
172 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
173 | # include <windows.h> |
192 | # include <windows.h> |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
176 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
177 | #endif |
197 | #endif |
|
|
198 | |
|
|
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
200 | * a limit of 1024 into their select. Where people have brains, |
|
|
201 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
202 | * ordered to have a vacuum, or they do anything for money. |
|
|
203 | * This might help. Or not. |
|
|
204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
178 | |
206 | |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
208 | |
|
|
209 | /* try to deduce the maximum number of signals on this platform */ |
|
|
210 | #if defined (EV_NSIG) |
|
|
211 | /* use what's provided */ |
|
|
212 | #elif defined (NSIG) |
|
|
213 | # define EV_NSIG (NSIG) |
|
|
214 | #elif defined(_NSIG) |
|
|
215 | # define EV_NSIG (_NSIG) |
|
|
216 | #elif defined (SIGMAX) |
|
|
217 | # define EV_NSIG (SIGMAX+1) |
|
|
218 | #elif defined (SIG_MAX) |
|
|
219 | # define EV_NSIG (SIG_MAX+1) |
|
|
220 | #elif defined (_SIG_MAX) |
|
|
221 | # define EV_NSIG (_SIG_MAX+1) |
|
|
222 | #elif defined (MAXSIG) |
|
|
223 | # define EV_NSIG (MAXSIG+1) |
|
|
224 | #elif defined (MAX_SIG) |
|
|
225 | # define EV_NSIG (MAX_SIG+1) |
|
|
226 | #elif defined (SIGARRAYSIZE) |
|
|
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
228 | #elif defined (_sys_nsig) |
|
|
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
230 | #else |
|
|
231 | # error "unable to find value for NSIG, please report" |
|
|
232 | /* to make it compile regardless, just remove the above line, */ |
|
|
233 | /* but consider reporting it, too! :) */ |
|
|
234 | # define EV_NSIG 65 |
|
|
235 | #endif |
180 | |
236 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
238 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
184 | # else |
240 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
186 | # endif |
242 | # endif |
187 | #endif |
243 | #endif |
188 | |
244 | |
189 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
191 | # define EV_USE_MONOTONIC 1 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
192 | # else |
248 | # else |
193 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
250 | # endif |
195 | #endif |
251 | #endif |
196 | |
252 | |
… | |
… | |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
255 | #endif |
200 | |
256 | |
201 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
258 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
204 | # else |
260 | # else |
205 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
206 | # endif |
262 | # endif |
207 | #endif |
263 | #endif |
208 | |
264 | |
209 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
210 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
211 | #endif |
267 | #endif |
212 | |
268 | |
213 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
214 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
215 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
216 | # else |
272 | # else |
217 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
218 | # endif |
274 | # endif |
219 | #endif |
275 | #endif |
220 | |
276 | |
221 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
223 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
224 | # else |
280 | # else |
225 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
226 | # endif |
282 | # endif |
227 | #endif |
283 | #endif |
228 | |
284 | |
… | |
… | |
234 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
235 | #endif |
291 | #endif |
236 | |
292 | |
237 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
239 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
240 | # else |
296 | # else |
241 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
242 | # endif |
298 | # endif |
243 | #endif |
299 | #endif |
244 | |
300 | |
245 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
246 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
247 | # define EV_PID_HASHSIZE 1 |
|
|
248 | # else |
|
|
249 | # define EV_PID_HASHSIZE 16 |
|
|
250 | # endif |
|
|
251 | #endif |
303 | #endif |
252 | |
304 | |
253 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
254 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
255 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
256 | # else |
|
|
257 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
258 | # endif |
|
|
259 | #endif |
307 | #endif |
260 | |
308 | |
261 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
263 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
264 | # else |
312 | # else |
265 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
|
|
314 | # endif |
|
|
315 | #endif |
|
|
316 | |
|
|
317 | #ifndef EV_USE_SIGNALFD |
|
|
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
320 | # else |
|
|
321 | # define EV_USE_SIGNALFD 0 |
266 | # endif |
322 | # endif |
267 | #endif |
323 | #endif |
268 | |
324 | |
269 | #if 0 /* debugging */ |
325 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
326 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
327 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
329 | #endif |
274 | |
330 | |
275 | #ifndef EV_VERIFY |
331 | #ifndef EV_VERIFY |
276 | # define EV_VERIFY !EV_MINIMAL |
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
277 | #endif |
333 | #endif |
278 | |
334 | |
279 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
281 | #endif |
337 | #endif |
282 | |
338 | |
283 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
341 | #endif |
|
|
342 | |
|
|
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
344 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
345 | #if EV_USE_CLOCK_SYSCALL |
|
|
346 | # include <syscall.h> |
|
|
347 | # ifdef SYS_clock_gettime |
|
|
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
349 | # undef EV_USE_MONOTONIC |
|
|
350 | # define EV_USE_MONOTONIC 1 |
|
|
351 | # else |
|
|
352 | # undef EV_USE_CLOCK_SYSCALL |
|
|
353 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
354 | # endif |
285 | #endif |
355 | #endif |
286 | |
356 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
358 | |
|
|
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
288 | |
364 | |
289 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
291 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
292 | #endif |
368 | #endif |
… | |
… | |
300 | # undef EV_USE_INOTIFY |
376 | # undef EV_USE_INOTIFY |
301 | # define EV_USE_INOTIFY 0 |
377 | # define EV_USE_INOTIFY 0 |
302 | #endif |
378 | #endif |
303 | |
379 | |
304 | #if !EV_USE_NANOSLEEP |
380 | #if !EV_USE_NANOSLEEP |
305 | # ifndef _WIN32 |
381 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
382 | # if !defined(_WIN32) && !defined(__hpux) |
306 | # include <sys/select.h> |
383 | # include <sys/select.h> |
307 | # endif |
384 | # endif |
308 | #endif |
385 | #endif |
309 | |
386 | |
310 | #if EV_USE_INOTIFY |
387 | #if EV_USE_INOTIFY |
311 | # include <sys/utsname.h> |
|
|
312 | # include <sys/statfs.h> |
388 | # include <sys/statfs.h> |
313 | # include <sys/inotify.h> |
389 | # include <sys/inotify.h> |
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
315 | # ifndef IN_DONT_FOLLOW |
391 | # ifndef IN_DONT_FOLLOW |
316 | # undef EV_USE_INOTIFY |
392 | # undef EV_USE_INOTIFY |
… | |
… | |
320 | |
396 | |
321 | #if EV_SELECT_IS_WINSOCKET |
397 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
398 | # include <winsock.h> |
323 | #endif |
399 | #endif |
324 | |
400 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
401 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
402 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
336 | # include <stdint.h> |
403 | # include <stdint.h> |
337 | # ifdef __cplusplus |
404 | # ifndef EFD_NONBLOCK |
338 | extern "C" { |
405 | # define EFD_NONBLOCK O_NONBLOCK |
339 | # endif |
406 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
407 | # ifndef EFD_CLOEXEC |
341 | # ifdef __cplusplus |
408 | # ifdef O_CLOEXEC |
342 | } |
409 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
410 | # else |
|
|
411 | # define EFD_CLOEXEC 02000000 |
|
|
412 | # endif |
343 | # endif |
413 | # endif |
|
|
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
415 | #endif |
|
|
416 | |
|
|
417 | #if EV_USE_SIGNALFD |
|
|
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
419 | # include <stdint.h> |
|
|
420 | # ifndef SFD_NONBLOCK |
|
|
421 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
422 | # endif |
|
|
423 | # ifndef SFD_CLOEXEC |
|
|
424 | # ifdef O_CLOEXEC |
|
|
425 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
426 | # else |
|
|
427 | # define SFD_CLOEXEC 02000000 |
|
|
428 | # endif |
|
|
429 | # endif |
|
|
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
431 | |
|
|
432 | struct signalfd_siginfo |
|
|
433 | { |
|
|
434 | uint32_t ssi_signo; |
|
|
435 | char pad[128 - sizeof (uint32_t)]; |
|
|
436 | }; |
344 | #endif |
437 | #endif |
345 | |
438 | |
346 | /**/ |
439 | /**/ |
347 | |
440 | |
348 | #if EV_VERIFY >= 3 |
441 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
350 | #else |
443 | #else |
351 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
352 | #endif |
445 | #endif |
353 | |
446 | |
354 | /* |
447 | /* |
… | |
… | |
361 | */ |
454 | */ |
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
363 | |
456 | |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
459 | |
|
|
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
367 | |
462 | |
368 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
370 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
371 | #else |
466 | #else |
… | |
… | |
378 | |
473 | |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
380 | #define expect_true(expr) expect ((expr) != 0, 1) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
381 | #define inline_size static inline |
476 | #define inline_size static inline |
382 | |
477 | |
383 | #if EV_MINIMAL |
478 | #if EV_FEATURE_CODE |
|
|
479 | # define inline_speed static inline |
|
|
480 | #else |
384 | # define inline_speed static noinline |
481 | # define inline_speed static noinline |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
485 | |
|
|
486 | #if EV_MINPRI == EV_MAXPRI |
|
|
487 | # define ABSPRI(w) (((W)w), 0) |
385 | #else |
488 | #else |
386 | # define inline_speed static inline |
|
|
387 | #endif |
|
|
388 | |
|
|
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
490 | #endif |
391 | |
491 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
494 | |
395 | typedef ev_watcher *W; |
495 | typedef ev_watcher *W; |
… | |
… | |
399 | #define ev_active(w) ((W)(w))->active |
499 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
500 | #define ev_at(w) ((WT)(w))->at |
401 | |
501 | |
402 | #if EV_USE_REALTIME |
502 | #if EV_USE_REALTIME |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
504 | /* giving it a reasonably high chance of working on typical architectures */ |
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
406 | #endif |
506 | #endif |
407 | |
507 | |
408 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
410 | #endif |
510 | #endif |
411 | |
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
520 | #endif |
|
|
521 | |
412 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
413 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
414 | #endif |
524 | #endif |
415 | |
525 | |
416 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
|
|
527 | |
|
|
528 | #ifdef __linux |
|
|
529 | # include <sys/utsname.h> |
|
|
530 | #endif |
|
|
531 | |
|
|
532 | static unsigned int noinline |
|
|
533 | ev_linux_version (void) |
|
|
534 | { |
|
|
535 | #ifdef __linux |
|
|
536 | unsigned int v = 0; |
|
|
537 | struct utsname buf; |
|
|
538 | int i; |
|
|
539 | char *p = buf.release; |
|
|
540 | |
|
|
541 | if (uname (&buf)) |
|
|
542 | return 0; |
|
|
543 | |
|
|
544 | for (i = 3+1; --i; ) |
|
|
545 | { |
|
|
546 | unsigned int c = 0; |
|
|
547 | |
|
|
548 | for (;;) |
|
|
549 | { |
|
|
550 | if (*p >= '0' && *p <= '9') |
|
|
551 | c = c * 10 + *p++ - '0'; |
|
|
552 | else |
|
|
553 | { |
|
|
554 | p += *p == '.'; |
|
|
555 | break; |
|
|
556 | } |
|
|
557 | } |
|
|
558 | |
|
|
559 | v = (v << 8) | c; |
|
|
560 | } |
|
|
561 | |
|
|
562 | return v; |
|
|
563 | #else |
|
|
564 | return 0; |
|
|
565 | #endif |
|
|
566 | } |
|
|
567 | |
|
|
568 | /*****************************************************************************/ |
|
|
569 | |
|
|
570 | #if EV_AVOID_STDIO |
|
|
571 | static void noinline |
|
|
572 | ev_printerr (const char *msg) |
|
|
573 | { |
|
|
574 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
575 | } |
|
|
576 | #endif |
417 | |
577 | |
418 | static void (*syserr_cb)(const char *msg); |
578 | static void (*syserr_cb)(const char *msg); |
419 | |
579 | |
420 | void |
580 | void |
421 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
581 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
431 | |
591 | |
432 | if (syserr_cb) |
592 | if (syserr_cb) |
433 | syserr_cb (msg); |
593 | syserr_cb (msg); |
434 | else |
594 | else |
435 | { |
595 | { |
|
|
596 | #if EV_AVOID_STDIO |
|
|
597 | ev_printerr (msg); |
|
|
598 | ev_printerr (": "); |
|
|
599 | ev_printerr (strerror (errno)); |
|
|
600 | ev_printerr ("\n"); |
|
|
601 | #else |
436 | perror (msg); |
602 | perror (msg); |
|
|
603 | #endif |
437 | abort (); |
604 | abort (); |
438 | } |
605 | } |
439 | } |
606 | } |
440 | |
607 | |
441 | static void * |
608 | static void * |
442 | ev_realloc_emul (void *ptr, long size) |
609 | ev_realloc_emul (void *ptr, long size) |
443 | { |
610 | { |
|
|
611 | #if __GLIBC__ |
|
|
612 | return realloc (ptr, size); |
|
|
613 | #else |
444 | /* some systems, notably openbsd and darwin, fail to properly |
614 | /* some systems, notably openbsd and darwin, fail to properly |
445 | * implement realloc (x, 0) (as required by both ansi c-98 and |
615 | * implement realloc (x, 0) (as required by both ansi c-89 and |
446 | * the single unix specification, so work around them here. |
616 | * the single unix specification, so work around them here. |
447 | */ |
617 | */ |
448 | |
618 | |
449 | if (size) |
619 | if (size) |
450 | return realloc (ptr, size); |
620 | return realloc (ptr, size); |
451 | |
621 | |
452 | free (ptr); |
622 | free (ptr); |
453 | return 0; |
623 | return 0; |
|
|
624 | #endif |
454 | } |
625 | } |
455 | |
626 | |
456 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
627 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
457 | |
628 | |
458 | void |
629 | void |
… | |
… | |
466 | { |
637 | { |
467 | ptr = alloc (ptr, size); |
638 | ptr = alloc (ptr, size); |
468 | |
639 | |
469 | if (!ptr && size) |
640 | if (!ptr && size) |
470 | { |
641 | { |
|
|
642 | #if EV_AVOID_STDIO |
|
|
643 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
644 | #else |
471 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
645 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
646 | #endif |
472 | abort (); |
647 | abort (); |
473 | } |
648 | } |
474 | |
649 | |
475 | return ptr; |
650 | return ptr; |
476 | } |
651 | } |
… | |
… | |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
653 | #define ev_malloc(size) ev_realloc (0, (size)) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
654 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
480 | |
655 | |
481 | /*****************************************************************************/ |
656 | /*****************************************************************************/ |
482 | |
657 | |
|
|
658 | /* set in reify when reification needed */ |
|
|
659 | #define EV_ANFD_REIFY 1 |
|
|
660 | |
|
|
661 | /* file descriptor info structure */ |
483 | typedef struct |
662 | typedef struct |
484 | { |
663 | { |
485 | WL head; |
664 | WL head; |
486 | unsigned char events; |
665 | unsigned char events; /* the events watched for */ |
487 | unsigned char reify; |
666 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
667 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
489 | unsigned char unused; |
668 | unsigned char unused; |
490 | #if EV_USE_EPOLL |
669 | #if EV_USE_EPOLL |
491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
670 | unsigned int egen; /* generation counter to counter epoll bugs */ |
492 | #endif |
671 | #endif |
493 | #if EV_SELECT_IS_WINSOCKET |
672 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
494 | SOCKET handle; |
673 | SOCKET handle; |
495 | #endif |
674 | #endif |
|
|
675 | #if EV_USE_IOCP |
|
|
676 | OVERLAPPED or, ow; |
|
|
677 | #endif |
496 | } ANFD; |
678 | } ANFD; |
497 | |
679 | |
|
|
680 | /* stores the pending event set for a given watcher */ |
498 | typedef struct |
681 | typedef struct |
499 | { |
682 | { |
500 | W w; |
683 | W w; |
501 | int events; |
684 | int events; /* the pending event set for the given watcher */ |
502 | } ANPENDING; |
685 | } ANPENDING; |
503 | |
686 | |
504 | #if EV_USE_INOTIFY |
687 | #if EV_USE_INOTIFY |
505 | /* hash table entry per inotify-id */ |
688 | /* hash table entry per inotify-id */ |
506 | typedef struct |
689 | typedef struct |
… | |
… | |
509 | } ANFS; |
692 | } ANFS; |
510 | #endif |
693 | #endif |
511 | |
694 | |
512 | /* Heap Entry */ |
695 | /* Heap Entry */ |
513 | #if EV_HEAP_CACHE_AT |
696 | #if EV_HEAP_CACHE_AT |
|
|
697 | /* a heap element */ |
514 | typedef struct { |
698 | typedef struct { |
515 | ev_tstamp at; |
699 | ev_tstamp at; |
516 | WT w; |
700 | WT w; |
517 | } ANHE; |
701 | } ANHE; |
518 | |
702 | |
519 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
703 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
520 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
704 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
521 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
705 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
522 | #else |
706 | #else |
|
|
707 | /* a heap element */ |
523 | typedef WT ANHE; |
708 | typedef WT ANHE; |
524 | |
709 | |
525 | #define ANHE_w(he) (he) |
710 | #define ANHE_w(he) (he) |
526 | #define ANHE_at(he) (he)->at |
711 | #define ANHE_at(he) (he)->at |
527 | #define ANHE_at_cache(he) |
712 | #define ANHE_at_cache(he) |
… | |
… | |
551 | |
736 | |
552 | static int ev_default_loop_ptr; |
737 | static int ev_default_loop_ptr; |
553 | |
738 | |
554 | #endif |
739 | #endif |
555 | |
740 | |
|
|
741 | #if EV_FEATURE_API |
|
|
742 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
743 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
744 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
745 | #else |
|
|
746 | # define EV_RELEASE_CB (void)0 |
|
|
747 | # define EV_ACQUIRE_CB (void)0 |
|
|
748 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
749 | #endif |
|
|
750 | |
|
|
751 | #define EVBREAK_RECURSE 0x80 |
|
|
752 | |
556 | /*****************************************************************************/ |
753 | /*****************************************************************************/ |
557 | |
754 | |
|
|
755 | #ifndef EV_HAVE_EV_TIME |
558 | ev_tstamp |
756 | ev_tstamp |
559 | ev_time (void) |
757 | ev_time (void) |
560 | { |
758 | { |
561 | #if EV_USE_REALTIME |
759 | #if EV_USE_REALTIME |
562 | if (expect_true (have_realtime)) |
760 | if (expect_true (have_realtime)) |
… | |
… | |
569 | |
767 | |
570 | struct timeval tv; |
768 | struct timeval tv; |
571 | gettimeofday (&tv, 0); |
769 | gettimeofday (&tv, 0); |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
770 | return tv.tv_sec + tv.tv_usec * 1e-6; |
573 | } |
771 | } |
|
|
772 | #endif |
574 | |
773 | |
575 | inline_size ev_tstamp |
774 | inline_size ev_tstamp |
576 | get_clock (void) |
775 | get_clock (void) |
577 | { |
776 | { |
578 | #if EV_USE_MONOTONIC |
777 | #if EV_USE_MONOTONIC |
… | |
… | |
601 | if (delay > 0.) |
800 | if (delay > 0.) |
602 | { |
801 | { |
603 | #if EV_USE_NANOSLEEP |
802 | #if EV_USE_NANOSLEEP |
604 | struct timespec ts; |
803 | struct timespec ts; |
605 | |
804 | |
606 | ts.tv_sec = (time_t)delay; |
805 | EV_TS_SET (ts, delay); |
607 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
608 | |
|
|
609 | nanosleep (&ts, 0); |
806 | nanosleep (&ts, 0); |
610 | #elif defined(_WIN32) |
807 | #elif defined(_WIN32) |
611 | Sleep ((unsigned long)(delay * 1e3)); |
808 | Sleep ((unsigned long)(delay * 1e3)); |
612 | #else |
809 | #else |
613 | struct timeval tv; |
810 | struct timeval tv; |
614 | |
811 | |
615 | tv.tv_sec = (time_t)delay; |
|
|
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
617 | |
|
|
618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
812 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
813 | /* something not guaranteed by newer posix versions, but guaranteed */ |
620 | /* by older ones */ |
814 | /* by older ones */ |
|
|
815 | EV_TV_SET (tv, delay); |
621 | select (0, 0, 0, 0, &tv); |
816 | select (0, 0, 0, 0, &tv); |
622 | #endif |
817 | #endif |
623 | } |
818 | } |
624 | } |
819 | } |
625 | |
820 | |
|
|
821 | inline_speed int |
|
|
822 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
823 | { |
|
|
824 | int ms = timeout * 1000. + .999999; |
|
|
825 | |
|
|
826 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
|
|
827 | } |
|
|
828 | |
626 | /*****************************************************************************/ |
829 | /*****************************************************************************/ |
627 | |
830 | |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
831 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
629 | |
832 | |
|
|
833 | /* find a suitable new size for the given array, */ |
|
|
834 | /* hopefully by rounding to a nice-to-malloc size */ |
630 | inline_size int |
835 | inline_size int |
631 | array_nextsize (int elem, int cur, int cnt) |
836 | array_nextsize (int elem, int cur, int cnt) |
632 | { |
837 | { |
633 | int ncur = cur + 1; |
838 | int ncur = cur + 1; |
634 | |
839 | |
… | |
… | |
680 | #define array_free(stem, idx) \ |
885 | #define array_free(stem, idx) \ |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
886 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
682 | |
887 | |
683 | /*****************************************************************************/ |
888 | /*****************************************************************************/ |
684 | |
889 | |
|
|
890 | /* dummy callback for pending events */ |
|
|
891 | static void noinline |
|
|
892 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
893 | { |
|
|
894 | } |
|
|
895 | |
685 | void noinline |
896 | void noinline |
686 | ev_feed_event (EV_P_ void *w, int revents) |
897 | ev_feed_event (EV_P_ void *w, int revents) |
687 | { |
898 | { |
688 | W w_ = (W)w; |
899 | W w_ = (W)w; |
689 | int pri = ABSPRI (w_); |
900 | int pri = ABSPRI (w_); |
… | |
… | |
724 | } |
935 | } |
725 | |
936 | |
726 | /*****************************************************************************/ |
937 | /*****************************************************************************/ |
727 | |
938 | |
728 | inline_speed void |
939 | inline_speed void |
729 | fd_event (EV_P_ int fd, int revents) |
940 | fd_event_nocheck (EV_P_ int fd, int revents) |
730 | { |
941 | { |
731 | ANFD *anfd = anfds + fd; |
942 | ANFD *anfd = anfds + fd; |
732 | ev_io *w; |
943 | ev_io *w; |
733 | |
944 | |
734 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
945 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
738 | if (ev) |
949 | if (ev) |
739 | ev_feed_event (EV_A_ (W)w, ev); |
950 | ev_feed_event (EV_A_ (W)w, ev); |
740 | } |
951 | } |
741 | } |
952 | } |
742 | |
953 | |
|
|
954 | /* do not submit kernel events for fds that have reify set */ |
|
|
955 | /* because that means they changed while we were polling for new events */ |
|
|
956 | inline_speed void |
|
|
957 | fd_event (EV_P_ int fd, int revents) |
|
|
958 | { |
|
|
959 | ANFD *anfd = anfds + fd; |
|
|
960 | |
|
|
961 | if (expect_true (!anfd->reify)) |
|
|
962 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
963 | } |
|
|
964 | |
743 | void |
965 | void |
744 | ev_feed_fd_event (EV_P_ int fd, int revents) |
966 | ev_feed_fd_event (EV_P_ int fd, int revents) |
745 | { |
967 | { |
746 | if (fd >= 0 && fd < anfdmax) |
968 | if (fd >= 0 && fd < anfdmax) |
747 | fd_event (EV_A_ fd, revents); |
969 | fd_event_nocheck (EV_A_ fd, revents); |
748 | } |
970 | } |
749 | |
971 | |
|
|
972 | /* make sure the external fd watch events are in-sync */ |
|
|
973 | /* with the kernel/libev internal state */ |
750 | inline_size void |
974 | inline_size void |
751 | fd_reify (EV_P) |
975 | fd_reify (EV_P) |
752 | { |
976 | { |
753 | int i; |
977 | int i; |
|
|
978 | |
|
|
979 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
980 | for (i = 0; i < fdchangecnt; ++i) |
|
|
981 | { |
|
|
982 | int fd = fdchanges [i]; |
|
|
983 | ANFD *anfd = anfds + fd; |
|
|
984 | |
|
|
985 | if (anfd->reify & EV__IOFDSET) |
|
|
986 | { |
|
|
987 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
988 | |
|
|
989 | if (handle != anfd->handle) |
|
|
990 | { |
|
|
991 | unsigned long arg; |
|
|
992 | |
|
|
993 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
994 | |
|
|
995 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
996 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
997 | anfd->events = 0; |
|
|
998 | anfd->handle = handle; |
|
|
999 | } |
|
|
1000 | } |
|
|
1001 | } |
|
|
1002 | #endif |
754 | |
1003 | |
755 | for (i = 0; i < fdchangecnt; ++i) |
1004 | for (i = 0; i < fdchangecnt; ++i) |
756 | { |
1005 | { |
757 | int fd = fdchanges [i]; |
1006 | int fd = fdchanges [i]; |
758 | ANFD *anfd = anfds + fd; |
1007 | ANFD *anfd = anfds + fd; |
759 | ev_io *w; |
1008 | ev_io *w; |
760 | |
1009 | |
761 | unsigned char events = 0; |
1010 | unsigned char o_events = anfd->events; |
|
|
1011 | unsigned char o_reify = anfd->reify; |
762 | |
1012 | |
763 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1013 | anfd->reify = 0; |
764 | events |= (unsigned char)w->events; |
|
|
765 | |
1014 | |
766 | #if EV_SELECT_IS_WINSOCKET |
1015 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
767 | if (events) |
|
|
768 | { |
1016 | { |
769 | unsigned long arg; |
1017 | anfd->events = 0; |
770 | #ifdef EV_FD_TO_WIN32_HANDLE |
1018 | |
771 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1019 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
772 | #else |
1020 | anfd->events |= (unsigned char)w->events; |
773 | anfd->handle = _get_osfhandle (fd); |
1021 | |
774 | #endif |
1022 | if (o_events != anfd->events) |
775 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1023 | o_reify = EV__IOFDSET; /* actually |= */ |
776 | } |
1024 | } |
777 | #endif |
|
|
778 | |
1025 | |
779 | { |
1026 | if (o_reify & EV__IOFDSET) |
780 | unsigned char o_events = anfd->events; |
|
|
781 | unsigned char o_reify = anfd->reify; |
|
|
782 | |
|
|
783 | anfd->reify = 0; |
|
|
784 | anfd->events = events; |
|
|
785 | |
|
|
786 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
787 | backend_modify (EV_A_ fd, o_events, events); |
1027 | backend_modify (EV_A_ fd, o_events, anfd->events); |
788 | } |
|
|
789 | } |
1028 | } |
790 | |
1029 | |
791 | fdchangecnt = 0; |
1030 | fdchangecnt = 0; |
792 | } |
1031 | } |
793 | |
1032 | |
|
|
1033 | /* something about the given fd changed */ |
794 | inline_size void |
1034 | inline_size void |
795 | fd_change (EV_P_ int fd, int flags) |
1035 | fd_change (EV_P_ int fd, int flags) |
796 | { |
1036 | { |
797 | unsigned char reify = anfds [fd].reify; |
1037 | unsigned char reify = anfds [fd].reify; |
798 | anfds [fd].reify |= flags; |
1038 | anfds [fd].reify |= flags; |
… | |
… | |
803 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1043 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
804 | fdchanges [fdchangecnt - 1] = fd; |
1044 | fdchanges [fdchangecnt - 1] = fd; |
805 | } |
1045 | } |
806 | } |
1046 | } |
807 | |
1047 | |
|
|
1048 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
808 | inline_speed void |
1049 | inline_speed void |
809 | fd_kill (EV_P_ int fd) |
1050 | fd_kill (EV_P_ int fd) |
810 | { |
1051 | { |
811 | ev_io *w; |
1052 | ev_io *w; |
812 | |
1053 | |
… | |
… | |
815 | ev_io_stop (EV_A_ w); |
1056 | ev_io_stop (EV_A_ w); |
816 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1057 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
817 | } |
1058 | } |
818 | } |
1059 | } |
819 | |
1060 | |
|
|
1061 | /* check whether the given fd is actually valid, for error recovery */ |
820 | inline_size int |
1062 | inline_size int |
821 | fd_valid (int fd) |
1063 | fd_valid (int fd) |
822 | { |
1064 | { |
823 | #ifdef _WIN32 |
1065 | #ifdef _WIN32 |
824 | return _get_osfhandle (fd) != -1; |
1066 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
825 | #else |
1067 | #else |
826 | return fcntl (fd, F_GETFD) != -1; |
1068 | return fcntl (fd, F_GETFD) != -1; |
827 | #endif |
1069 | #endif |
828 | } |
1070 | } |
829 | |
1071 | |
… | |
… | |
847 | |
1089 | |
848 | for (fd = anfdmax; fd--; ) |
1090 | for (fd = anfdmax; fd--; ) |
849 | if (anfds [fd].events) |
1091 | if (anfds [fd].events) |
850 | { |
1092 | { |
851 | fd_kill (EV_A_ fd); |
1093 | fd_kill (EV_A_ fd); |
852 | return; |
1094 | break; |
853 | } |
1095 | } |
854 | } |
1096 | } |
855 | |
1097 | |
856 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1098 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
857 | static void noinline |
1099 | static void noinline |
… | |
… | |
862 | for (fd = 0; fd < anfdmax; ++fd) |
1104 | for (fd = 0; fd < anfdmax; ++fd) |
863 | if (anfds [fd].events) |
1105 | if (anfds [fd].events) |
864 | { |
1106 | { |
865 | anfds [fd].events = 0; |
1107 | anfds [fd].events = 0; |
866 | anfds [fd].emask = 0; |
1108 | anfds [fd].emask = 0; |
867 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1109 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
868 | } |
1110 | } |
869 | } |
1111 | } |
870 | |
1112 | |
|
|
1113 | /* used to prepare libev internal fd's */ |
|
|
1114 | /* this is not fork-safe */ |
|
|
1115 | inline_speed void |
|
|
1116 | fd_intern (int fd) |
|
|
1117 | { |
|
|
1118 | #ifdef _WIN32 |
|
|
1119 | unsigned long arg = 1; |
|
|
1120 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1121 | #else |
|
|
1122 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1123 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1124 | #endif |
|
|
1125 | } |
|
|
1126 | |
871 | /*****************************************************************************/ |
1127 | /*****************************************************************************/ |
872 | |
1128 | |
873 | /* |
1129 | /* |
874 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1130 | * the heap functions want a real array index. array index 0 is guaranteed to not |
875 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1131 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
876 | * the branching factor of the d-tree. |
1132 | * the branching factor of the d-tree. |
877 | */ |
1133 | */ |
878 | |
1134 | |
879 | /* |
1135 | /* |
… | |
… | |
947 | |
1203 | |
948 | for (;;) |
1204 | for (;;) |
949 | { |
1205 | { |
950 | int c = k << 1; |
1206 | int c = k << 1; |
951 | |
1207 | |
952 | if (c > N + HEAP0 - 1) |
1208 | if (c >= N + HEAP0) |
953 | break; |
1209 | break; |
954 | |
1210 | |
955 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1211 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
956 | ? 1 : 0; |
1212 | ? 1 : 0; |
957 | |
1213 | |
… | |
… | |
989 | |
1245 | |
990 | heap [k] = he; |
1246 | heap [k] = he; |
991 | ev_active (ANHE_w (he)) = k; |
1247 | ev_active (ANHE_w (he)) = k; |
992 | } |
1248 | } |
993 | |
1249 | |
|
|
1250 | /* move an element suitably so it is in a correct place */ |
994 | inline_size void |
1251 | inline_size void |
995 | adjustheap (ANHE *heap, int N, int k) |
1252 | adjustheap (ANHE *heap, int N, int k) |
996 | { |
1253 | { |
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1254 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
998 | upheap (heap, k); |
1255 | upheap (heap, k); |
999 | else |
1256 | else |
1000 | downheap (heap, N, k); |
1257 | downheap (heap, N, k); |
1001 | } |
1258 | } |
1002 | |
1259 | |
… | |
… | |
1012 | upheap (heap, i + HEAP0); |
1269 | upheap (heap, i + HEAP0); |
1013 | } |
1270 | } |
1014 | |
1271 | |
1015 | /*****************************************************************************/ |
1272 | /*****************************************************************************/ |
1016 | |
1273 | |
|
|
1274 | /* associate signal watchers to a signal signal */ |
1017 | typedef struct |
1275 | typedef struct |
1018 | { |
1276 | { |
|
|
1277 | EV_ATOMIC_T pending; |
|
|
1278 | #if EV_MULTIPLICITY |
|
|
1279 | EV_P; |
|
|
1280 | #endif |
1019 | WL head; |
1281 | WL head; |
1020 | EV_ATOMIC_T gotsig; |
|
|
1021 | } ANSIG; |
1282 | } ANSIG; |
1022 | |
1283 | |
1023 | static ANSIG *signals; |
1284 | static ANSIG signals [EV_NSIG - 1]; |
1024 | static int signalmax; |
|
|
1025 | |
|
|
1026 | static EV_ATOMIC_T gotsig; |
|
|
1027 | |
1285 | |
1028 | /*****************************************************************************/ |
1286 | /*****************************************************************************/ |
1029 | |
1287 | |
1030 | inline_speed void |
1288 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1031 | fd_intern (int fd) |
|
|
1032 | { |
|
|
1033 | #ifdef _WIN32 |
|
|
1034 | unsigned long arg = 1; |
|
|
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1036 | #else |
|
|
1037 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1038 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1039 | #endif |
|
|
1040 | } |
|
|
1041 | |
1289 | |
1042 | static void noinline |
1290 | static void noinline |
1043 | evpipe_init (EV_P) |
1291 | evpipe_init (EV_P) |
1044 | { |
1292 | { |
1045 | if (!ev_is_active (&pipeev)) |
1293 | if (!ev_is_active (&pipe_w)) |
1046 | { |
1294 | { |
1047 | #if EV_USE_EVENTFD |
1295 | # if EV_USE_EVENTFD |
|
|
1296 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1297 | if (evfd < 0 && errno == EINVAL) |
1048 | if ((evfd = eventfd (0, 0)) >= 0) |
1298 | evfd = eventfd (0, 0); |
|
|
1299 | |
|
|
1300 | if (evfd >= 0) |
1049 | { |
1301 | { |
1050 | evpipe [0] = -1; |
1302 | evpipe [0] = -1; |
1051 | fd_intern (evfd); |
1303 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1052 | ev_io_set (&pipeev, evfd, EV_READ); |
1304 | ev_io_set (&pipe_w, evfd, EV_READ); |
1053 | } |
1305 | } |
1054 | else |
1306 | else |
1055 | #endif |
1307 | # endif |
1056 | { |
1308 | { |
1057 | while (pipe (evpipe)) |
1309 | while (pipe (evpipe)) |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
1310 | ev_syserr ("(libev) error creating signal/async pipe"); |
1059 | |
1311 | |
1060 | fd_intern (evpipe [0]); |
1312 | fd_intern (evpipe [0]); |
1061 | fd_intern (evpipe [1]); |
1313 | fd_intern (evpipe [1]); |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1314 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1063 | } |
1315 | } |
1064 | |
1316 | |
1065 | ev_io_start (EV_A_ &pipeev); |
1317 | ev_io_start (EV_A_ &pipe_w); |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1318 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1067 | } |
1319 | } |
1068 | } |
1320 | } |
1069 | |
1321 | |
1070 | inline_size void |
1322 | inline_size void |
1071 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1323 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1072 | { |
1324 | { |
1073 | if (!*flag) |
1325 | if (!*flag) |
1074 | { |
1326 | { |
1075 | int old_errno = errno; /* save errno because write might clobber it */ |
1327 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1328 | char dummy; |
1076 | |
1329 | |
1077 | *flag = 1; |
1330 | *flag = 1; |
1078 | |
1331 | |
1079 | #if EV_USE_EVENTFD |
1332 | #if EV_USE_EVENTFD |
1080 | if (evfd >= 0) |
1333 | if (evfd >= 0) |
… | |
… | |
1082 | uint64_t counter = 1; |
1335 | uint64_t counter = 1; |
1083 | write (evfd, &counter, sizeof (uint64_t)); |
1336 | write (evfd, &counter, sizeof (uint64_t)); |
1084 | } |
1337 | } |
1085 | else |
1338 | else |
1086 | #endif |
1339 | #endif |
|
|
1340 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1341 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1342 | /* so when you think this write should be a send instead, please find out */ |
|
|
1343 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1344 | /* tell me. thank you. */ |
1087 | write (evpipe [1], &old_errno, 1); |
1345 | write (evpipe [1], &dummy, 1); |
1088 | |
1346 | |
1089 | errno = old_errno; |
1347 | errno = old_errno; |
1090 | } |
1348 | } |
1091 | } |
1349 | } |
1092 | |
1350 | |
|
|
1351 | /* called whenever the libev signal pipe */ |
|
|
1352 | /* got some events (signal, async) */ |
1093 | static void |
1353 | static void |
1094 | pipecb (EV_P_ ev_io *iow, int revents) |
1354 | pipecb (EV_P_ ev_io *iow, int revents) |
1095 | { |
1355 | { |
|
|
1356 | int i; |
|
|
1357 | |
1096 | #if EV_USE_EVENTFD |
1358 | #if EV_USE_EVENTFD |
1097 | if (evfd >= 0) |
1359 | if (evfd >= 0) |
1098 | { |
1360 | { |
1099 | uint64_t counter; |
1361 | uint64_t counter; |
1100 | read (evfd, &counter, sizeof (uint64_t)); |
1362 | read (evfd, &counter, sizeof (uint64_t)); |
1101 | } |
1363 | } |
1102 | else |
1364 | else |
1103 | #endif |
1365 | #endif |
1104 | { |
1366 | { |
1105 | char dummy; |
1367 | char dummy; |
|
|
1368 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1106 | read (evpipe [0], &dummy, 1); |
1369 | read (evpipe [0], &dummy, 1); |
1107 | } |
1370 | } |
1108 | |
1371 | |
1109 | if (gotsig && ev_is_default_loop (EV_A)) |
1372 | #if EV_SIGNAL_ENABLE |
1110 | { |
1373 | if (sig_pending) |
1111 | int signum; |
1374 | { |
1112 | gotsig = 0; |
1375 | sig_pending = 0; |
1113 | |
1376 | |
1114 | for (signum = signalmax; signum--; ) |
1377 | for (i = EV_NSIG - 1; i--; ) |
1115 | if (signals [signum].gotsig) |
1378 | if (expect_false (signals [i].pending)) |
1116 | ev_feed_signal_event (EV_A_ signum + 1); |
1379 | ev_feed_signal_event (EV_A_ i + 1); |
1117 | } |
1380 | } |
|
|
1381 | #endif |
1118 | |
1382 | |
1119 | #if EV_ASYNC_ENABLE |
1383 | #if EV_ASYNC_ENABLE |
1120 | if (gotasync) |
1384 | if (async_pending) |
1121 | { |
1385 | { |
1122 | int i; |
1386 | async_pending = 0; |
1123 | gotasync = 0; |
|
|
1124 | |
1387 | |
1125 | for (i = asynccnt; i--; ) |
1388 | for (i = asynccnt; i--; ) |
1126 | if (asyncs [i]->sent) |
1389 | if (asyncs [i]->sent) |
1127 | { |
1390 | { |
1128 | asyncs [i]->sent = 0; |
1391 | asyncs [i]->sent = 0; |
… | |
… | |
1132 | #endif |
1395 | #endif |
1133 | } |
1396 | } |
1134 | |
1397 | |
1135 | /*****************************************************************************/ |
1398 | /*****************************************************************************/ |
1136 | |
1399 | |
|
|
1400 | void |
|
|
1401 | ev_feed_signal (int signum) |
|
|
1402 | { |
|
|
1403 | #if EV_MULTIPLICITY |
|
|
1404 | EV_P = signals [signum - 1].loop; |
|
|
1405 | |
|
|
1406 | if (!EV_A) |
|
|
1407 | return; |
|
|
1408 | #endif |
|
|
1409 | |
|
|
1410 | signals [signum - 1].pending = 1; |
|
|
1411 | evpipe_write (EV_A_ &sig_pending); |
|
|
1412 | } |
|
|
1413 | |
1137 | static void |
1414 | static void |
1138 | ev_sighandler (int signum) |
1415 | ev_sighandler (int signum) |
1139 | { |
1416 | { |
1140 | #if EV_MULTIPLICITY |
|
|
1141 | struct ev_loop *loop = &default_loop_struct; |
|
|
1142 | #endif |
|
|
1143 | |
|
|
1144 | #if _WIN32 |
1417 | #ifdef _WIN32 |
1145 | signal (signum, ev_sighandler); |
1418 | signal (signum, ev_sighandler); |
1146 | #endif |
1419 | #endif |
1147 | |
1420 | |
1148 | signals [signum - 1].gotsig = 1; |
1421 | ev_feed_signal (signum); |
1149 | evpipe_write (EV_A_ &gotsig); |
|
|
1150 | } |
1422 | } |
1151 | |
1423 | |
1152 | void noinline |
1424 | void noinline |
1153 | ev_feed_signal_event (EV_P_ int signum) |
1425 | ev_feed_signal_event (EV_P_ int signum) |
1154 | { |
1426 | { |
1155 | WL w; |
1427 | WL w; |
1156 | |
1428 | |
|
|
1429 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1430 | return; |
|
|
1431 | |
|
|
1432 | --signum; |
|
|
1433 | |
1157 | #if EV_MULTIPLICITY |
1434 | #if EV_MULTIPLICITY |
1158 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1435 | /* it is permissible to try to feed a signal to the wrong loop */ |
1159 | #endif |
1436 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1160 | |
1437 | |
1161 | --signum; |
1438 | if (expect_false (signals [signum].loop != EV_A)) |
1162 | |
|
|
1163 | if (signum < 0 || signum >= signalmax) |
|
|
1164 | return; |
1439 | return; |
|
|
1440 | #endif |
1165 | |
1441 | |
1166 | signals [signum].gotsig = 0; |
1442 | signals [signum].pending = 0; |
1167 | |
1443 | |
1168 | for (w = signals [signum].head; w; w = w->next) |
1444 | for (w = signals [signum].head; w; w = w->next) |
1169 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1445 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1170 | } |
1446 | } |
1171 | |
1447 | |
|
|
1448 | #if EV_USE_SIGNALFD |
|
|
1449 | static void |
|
|
1450 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1451 | { |
|
|
1452 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1453 | |
|
|
1454 | for (;;) |
|
|
1455 | { |
|
|
1456 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1457 | |
|
|
1458 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1459 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1460 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1461 | |
|
|
1462 | if (res < (ssize_t)sizeof (si)) |
|
|
1463 | break; |
|
|
1464 | } |
|
|
1465 | } |
|
|
1466 | #endif |
|
|
1467 | |
|
|
1468 | #endif |
|
|
1469 | |
1172 | /*****************************************************************************/ |
1470 | /*****************************************************************************/ |
1173 | |
1471 | |
|
|
1472 | #if EV_CHILD_ENABLE |
1174 | static WL childs [EV_PID_HASHSIZE]; |
1473 | static WL childs [EV_PID_HASHSIZE]; |
1175 | |
|
|
1176 | #ifndef _WIN32 |
|
|
1177 | |
1474 | |
1178 | static ev_signal childev; |
1475 | static ev_signal childev; |
1179 | |
1476 | |
1180 | #ifndef WIFCONTINUED |
1477 | #ifndef WIFCONTINUED |
1181 | # define WIFCONTINUED(status) 0 |
1478 | # define WIFCONTINUED(status) 0 |
1182 | #endif |
1479 | #endif |
1183 | |
1480 | |
|
|
1481 | /* handle a single child status event */ |
1184 | inline_speed void |
1482 | inline_speed void |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
1483 | child_reap (EV_P_ int chain, int pid, int status) |
1186 | { |
1484 | { |
1187 | ev_child *w; |
1485 | ev_child *w; |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1486 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1189 | |
1487 | |
1190 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1488 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1191 | { |
1489 | { |
1192 | if ((w->pid == pid || !w->pid) |
1490 | if ((w->pid == pid || !w->pid) |
1193 | && (!traced || (w->flags & 1))) |
1491 | && (!traced || (w->flags & 1))) |
1194 | { |
1492 | { |
1195 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1493 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1202 | |
1500 | |
1203 | #ifndef WCONTINUED |
1501 | #ifndef WCONTINUED |
1204 | # define WCONTINUED 0 |
1502 | # define WCONTINUED 0 |
1205 | #endif |
1503 | #endif |
1206 | |
1504 | |
|
|
1505 | /* called on sigchld etc., calls waitpid */ |
1207 | static void |
1506 | static void |
1208 | childcb (EV_P_ ev_signal *sw, int revents) |
1507 | childcb (EV_P_ ev_signal *sw, int revents) |
1209 | { |
1508 | { |
1210 | int pid, status; |
1509 | int pid, status; |
1211 | |
1510 | |
… | |
… | |
1219 | /* make sure we are called again until all children have been reaped */ |
1518 | /* make sure we are called again until all children have been reaped */ |
1220 | /* we need to do it this way so that the callback gets called before we continue */ |
1519 | /* we need to do it this way so that the callback gets called before we continue */ |
1221 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1520 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1222 | |
1521 | |
1223 | child_reap (EV_A_ pid, pid, status); |
1522 | child_reap (EV_A_ pid, pid, status); |
1224 | if (EV_PID_HASHSIZE > 1) |
1523 | if ((EV_PID_HASHSIZE) > 1) |
1225 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1524 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1226 | } |
1525 | } |
1227 | |
1526 | |
1228 | #endif |
1527 | #endif |
1229 | |
1528 | |
1230 | /*****************************************************************************/ |
1529 | /*****************************************************************************/ |
1231 | |
1530 | |
|
|
1531 | #if EV_USE_IOCP |
|
|
1532 | # include "ev_iocp.c" |
|
|
1533 | #endif |
1232 | #if EV_USE_PORT |
1534 | #if EV_USE_PORT |
1233 | # include "ev_port.c" |
1535 | # include "ev_port.c" |
1234 | #endif |
1536 | #endif |
1235 | #if EV_USE_KQUEUE |
1537 | #if EV_USE_KQUEUE |
1236 | # include "ev_kqueue.c" |
1538 | # include "ev_kqueue.c" |
… | |
… | |
1296 | #ifdef __APPLE__ |
1598 | #ifdef __APPLE__ |
1297 | /* only select works correctly on that "unix-certified" platform */ |
1599 | /* only select works correctly on that "unix-certified" platform */ |
1298 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1600 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1299 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1601 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1300 | #endif |
1602 | #endif |
|
|
1603 | #ifdef __FreeBSD__ |
|
|
1604 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1605 | #endif |
1301 | |
1606 | |
1302 | return flags; |
1607 | return flags; |
1303 | } |
1608 | } |
1304 | |
1609 | |
1305 | unsigned int |
1610 | unsigned int |
1306 | ev_embeddable_backends (void) |
1611 | ev_embeddable_backends (void) |
1307 | { |
1612 | { |
1308 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1613 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1309 | |
1614 | |
1310 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1615 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1311 | /* please fix it and tell me how to detect the fix */ |
1616 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1312 | flags &= ~EVBACKEND_EPOLL; |
1617 | flags &= ~EVBACKEND_EPOLL; |
1313 | |
1618 | |
1314 | return flags; |
1619 | return flags; |
1315 | } |
1620 | } |
1316 | |
1621 | |
1317 | unsigned int |
1622 | unsigned int |
1318 | ev_backend (EV_P) |
1623 | ev_backend (EV_P) |
1319 | { |
1624 | { |
1320 | return backend; |
1625 | return backend; |
1321 | } |
1626 | } |
1322 | |
1627 | |
|
|
1628 | #if EV_FEATURE_API |
1323 | unsigned int |
1629 | unsigned int |
1324 | ev_loop_count (EV_P) |
1630 | ev_iteration (EV_P) |
1325 | { |
1631 | { |
1326 | return loop_count; |
1632 | return loop_count; |
1327 | } |
1633 | } |
1328 | |
1634 | |
|
|
1635 | unsigned int |
|
|
1636 | ev_depth (EV_P) |
|
|
1637 | { |
|
|
1638 | return loop_depth; |
|
|
1639 | } |
|
|
1640 | |
1329 | void |
1641 | void |
1330 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1642 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1331 | { |
1643 | { |
1332 | io_blocktime = interval; |
1644 | io_blocktime = interval; |
1333 | } |
1645 | } |
… | |
… | |
1336 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1648 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1337 | { |
1649 | { |
1338 | timeout_blocktime = interval; |
1650 | timeout_blocktime = interval; |
1339 | } |
1651 | } |
1340 | |
1652 | |
|
|
1653 | void |
|
|
1654 | ev_set_userdata (EV_P_ void *data) |
|
|
1655 | { |
|
|
1656 | userdata = data; |
|
|
1657 | } |
|
|
1658 | |
|
|
1659 | void * |
|
|
1660 | ev_userdata (EV_P) |
|
|
1661 | { |
|
|
1662 | return userdata; |
|
|
1663 | } |
|
|
1664 | |
|
|
1665 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1666 | { |
|
|
1667 | invoke_cb = invoke_pending_cb; |
|
|
1668 | } |
|
|
1669 | |
|
|
1670 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1671 | { |
|
|
1672 | release_cb = release; |
|
|
1673 | acquire_cb = acquire; |
|
|
1674 | } |
|
|
1675 | #endif |
|
|
1676 | |
|
|
1677 | /* initialise a loop structure, must be zero-initialised */ |
1341 | static void noinline |
1678 | static void noinline |
1342 | loop_init (EV_P_ unsigned int flags) |
1679 | loop_init (EV_P_ unsigned int flags) |
1343 | { |
1680 | { |
1344 | if (!backend) |
1681 | if (!backend) |
1345 | { |
1682 | { |
|
|
1683 | origflags = flags; |
|
|
1684 | |
1346 | #if EV_USE_REALTIME |
1685 | #if EV_USE_REALTIME |
1347 | if (!have_realtime) |
1686 | if (!have_realtime) |
1348 | { |
1687 | { |
1349 | struct timespec ts; |
1688 | struct timespec ts; |
1350 | |
1689 | |
… | |
… | |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1700 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1362 | have_monotonic = 1; |
1701 | have_monotonic = 1; |
1363 | } |
1702 | } |
1364 | #endif |
1703 | #endif |
1365 | |
1704 | |
|
|
1705 | /* pid check not overridable via env */ |
|
|
1706 | #ifndef _WIN32 |
|
|
1707 | if (flags & EVFLAG_FORKCHECK) |
|
|
1708 | curpid = getpid (); |
|
|
1709 | #endif |
|
|
1710 | |
|
|
1711 | if (!(flags & EVFLAG_NOENV) |
|
|
1712 | && !enable_secure () |
|
|
1713 | && getenv ("LIBEV_FLAGS")) |
|
|
1714 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1715 | |
1366 | ev_rt_now = ev_time (); |
1716 | ev_rt_now = ev_time (); |
1367 | mn_now = get_clock (); |
1717 | mn_now = get_clock (); |
1368 | now_floor = mn_now; |
1718 | now_floor = mn_now; |
1369 | rtmn_diff = ev_rt_now - mn_now; |
1719 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1720 | #if EV_FEATURE_API |
|
|
1721 | invoke_cb = ev_invoke_pending; |
|
|
1722 | #endif |
1370 | |
1723 | |
1371 | io_blocktime = 0.; |
1724 | io_blocktime = 0.; |
1372 | timeout_blocktime = 0.; |
1725 | timeout_blocktime = 0.; |
1373 | backend = 0; |
1726 | backend = 0; |
1374 | backend_fd = -1; |
1727 | backend_fd = -1; |
1375 | gotasync = 0; |
1728 | sig_pending = 0; |
|
|
1729 | #if EV_ASYNC_ENABLE |
|
|
1730 | async_pending = 0; |
|
|
1731 | #endif |
1376 | #if EV_USE_INOTIFY |
1732 | #if EV_USE_INOTIFY |
1377 | fs_fd = -2; |
1733 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1378 | #endif |
1734 | #endif |
1379 | |
1735 | #if EV_USE_SIGNALFD |
1380 | /* pid check not overridable via env */ |
1736 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1381 | #ifndef _WIN32 |
|
|
1382 | if (flags & EVFLAG_FORKCHECK) |
|
|
1383 | curpid = getpid (); |
|
|
1384 | #endif |
1737 | #endif |
1385 | |
1738 | |
1386 | if (!(flags & EVFLAG_NOENV) |
1739 | if (!(flags & EVBACKEND_MASK)) |
1387 | && !enable_secure () |
|
|
1388 | && getenv ("LIBEV_FLAGS")) |
|
|
1389 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1390 | |
|
|
1391 | if (!(flags & 0x0000ffffU)) |
|
|
1392 | flags |= ev_recommended_backends (); |
1740 | flags |= ev_recommended_backends (); |
1393 | |
1741 | |
|
|
1742 | #if EV_USE_IOCP |
|
|
1743 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1744 | #endif |
1394 | #if EV_USE_PORT |
1745 | #if EV_USE_PORT |
1395 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1746 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1396 | #endif |
1747 | #endif |
1397 | #if EV_USE_KQUEUE |
1748 | #if EV_USE_KQUEUE |
1398 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1749 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1405 | #endif |
1756 | #endif |
1406 | #if EV_USE_SELECT |
1757 | #if EV_USE_SELECT |
1407 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1758 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1408 | #endif |
1759 | #endif |
1409 | |
1760 | |
|
|
1761 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1762 | |
|
|
1763 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1410 | ev_init (&pipeev, pipecb); |
1764 | ev_init (&pipe_w, pipecb); |
1411 | ev_set_priority (&pipeev, EV_MAXPRI); |
1765 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1766 | #endif |
1412 | } |
1767 | } |
1413 | } |
1768 | } |
1414 | |
1769 | |
1415 | static void noinline |
1770 | /* free up a loop structure */ |
|
|
1771 | void |
1416 | loop_destroy (EV_P) |
1772 | ev_loop_destroy (EV_P) |
1417 | { |
1773 | { |
1418 | int i; |
1774 | int i; |
1419 | |
1775 | |
|
|
1776 | #if EV_MULTIPLICITY |
|
|
1777 | /* mimic free (0) */ |
|
|
1778 | if (!EV_A) |
|
|
1779 | return; |
|
|
1780 | #endif |
|
|
1781 | |
|
|
1782 | #if EV_CLEANUP_ENABLE |
|
|
1783 | /* queue cleanup watchers (and execute them) */ |
|
|
1784 | if (expect_false (cleanupcnt)) |
|
|
1785 | { |
|
|
1786 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1787 | EV_INVOKE_PENDING; |
|
|
1788 | } |
|
|
1789 | #endif |
|
|
1790 | |
|
|
1791 | #if EV_CHILD_ENABLE |
|
|
1792 | if (ev_is_active (&childev)) |
|
|
1793 | { |
|
|
1794 | ev_ref (EV_A); /* child watcher */ |
|
|
1795 | ev_signal_stop (EV_A_ &childev); |
|
|
1796 | } |
|
|
1797 | #endif |
|
|
1798 | |
1420 | if (ev_is_active (&pipeev)) |
1799 | if (ev_is_active (&pipe_w)) |
1421 | { |
1800 | { |
1422 | ev_ref (EV_A); /* signal watcher */ |
1801 | /*ev_ref (EV_A);*/ |
1423 | ev_io_stop (EV_A_ &pipeev); |
1802 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1424 | |
1803 | |
1425 | #if EV_USE_EVENTFD |
1804 | #if EV_USE_EVENTFD |
1426 | if (evfd >= 0) |
1805 | if (evfd >= 0) |
1427 | close (evfd); |
1806 | close (evfd); |
1428 | #endif |
1807 | #endif |
1429 | |
1808 | |
1430 | if (evpipe [0] >= 0) |
1809 | if (evpipe [0] >= 0) |
1431 | { |
1810 | { |
1432 | close (evpipe [0]); |
1811 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1433 | close (evpipe [1]); |
1812 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1434 | } |
1813 | } |
1435 | } |
1814 | } |
|
|
1815 | |
|
|
1816 | #if EV_USE_SIGNALFD |
|
|
1817 | if (ev_is_active (&sigfd_w)) |
|
|
1818 | close (sigfd); |
|
|
1819 | #endif |
1436 | |
1820 | |
1437 | #if EV_USE_INOTIFY |
1821 | #if EV_USE_INOTIFY |
1438 | if (fs_fd >= 0) |
1822 | if (fs_fd >= 0) |
1439 | close (fs_fd); |
1823 | close (fs_fd); |
1440 | #endif |
1824 | #endif |
1441 | |
1825 | |
1442 | if (backend_fd >= 0) |
1826 | if (backend_fd >= 0) |
1443 | close (backend_fd); |
1827 | close (backend_fd); |
1444 | |
1828 | |
|
|
1829 | #if EV_USE_IOCP |
|
|
1830 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1831 | #endif |
1445 | #if EV_USE_PORT |
1832 | #if EV_USE_PORT |
1446 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1833 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1447 | #endif |
1834 | #endif |
1448 | #if EV_USE_KQUEUE |
1835 | #if EV_USE_KQUEUE |
1449 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1836 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1464 | #if EV_IDLE_ENABLE |
1851 | #if EV_IDLE_ENABLE |
1465 | array_free (idle, [i]); |
1852 | array_free (idle, [i]); |
1466 | #endif |
1853 | #endif |
1467 | } |
1854 | } |
1468 | |
1855 | |
1469 | ev_free (anfds); anfdmax = 0; |
1856 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1470 | |
1857 | |
1471 | /* have to use the microsoft-never-gets-it-right macro */ |
1858 | /* have to use the microsoft-never-gets-it-right macro */ |
1472 | array_free (rfeed, EMPTY); |
1859 | array_free (rfeed, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
1860 | array_free (fdchange, EMPTY); |
1474 | array_free (timer, EMPTY); |
1861 | array_free (timer, EMPTY); |
… | |
… | |
1476 | array_free (periodic, EMPTY); |
1863 | array_free (periodic, EMPTY); |
1477 | #endif |
1864 | #endif |
1478 | #if EV_FORK_ENABLE |
1865 | #if EV_FORK_ENABLE |
1479 | array_free (fork, EMPTY); |
1866 | array_free (fork, EMPTY); |
1480 | #endif |
1867 | #endif |
|
|
1868 | #if EV_CLEANUP_ENABLE |
|
|
1869 | array_free (cleanup, EMPTY); |
|
|
1870 | #endif |
1481 | array_free (prepare, EMPTY); |
1871 | array_free (prepare, EMPTY); |
1482 | array_free (check, EMPTY); |
1872 | array_free (check, EMPTY); |
1483 | #if EV_ASYNC_ENABLE |
1873 | #if EV_ASYNC_ENABLE |
1484 | array_free (async, EMPTY); |
1874 | array_free (async, EMPTY); |
1485 | #endif |
1875 | #endif |
1486 | |
1876 | |
1487 | backend = 0; |
1877 | backend = 0; |
|
|
1878 | |
|
|
1879 | #if EV_MULTIPLICITY |
|
|
1880 | if (ev_is_default_loop (EV_A)) |
|
|
1881 | #endif |
|
|
1882 | ev_default_loop_ptr = 0; |
|
|
1883 | #if EV_MULTIPLICITY |
|
|
1884 | else |
|
|
1885 | ev_free (EV_A); |
|
|
1886 | #endif |
1488 | } |
1887 | } |
1489 | |
1888 | |
1490 | #if EV_USE_INOTIFY |
1889 | #if EV_USE_INOTIFY |
1491 | inline_size void infy_fork (EV_P); |
1890 | inline_size void infy_fork (EV_P); |
1492 | #endif |
1891 | #endif |
… | |
… | |
1505 | #endif |
1904 | #endif |
1506 | #if EV_USE_INOTIFY |
1905 | #if EV_USE_INOTIFY |
1507 | infy_fork (EV_A); |
1906 | infy_fork (EV_A); |
1508 | #endif |
1907 | #endif |
1509 | |
1908 | |
1510 | if (ev_is_active (&pipeev)) |
1909 | if (ev_is_active (&pipe_w)) |
1511 | { |
1910 | { |
1512 | /* this "locks" the handlers against writing to the pipe */ |
1911 | /* this "locks" the handlers against writing to the pipe */ |
1513 | /* while we modify the fd vars */ |
1912 | /* while we modify the fd vars */ |
1514 | gotsig = 1; |
1913 | sig_pending = 1; |
1515 | #if EV_ASYNC_ENABLE |
1914 | #if EV_ASYNC_ENABLE |
1516 | gotasync = 1; |
1915 | async_pending = 1; |
1517 | #endif |
1916 | #endif |
1518 | |
1917 | |
1519 | ev_ref (EV_A); |
1918 | ev_ref (EV_A); |
1520 | ev_io_stop (EV_A_ &pipeev); |
1919 | ev_io_stop (EV_A_ &pipe_w); |
1521 | |
1920 | |
1522 | #if EV_USE_EVENTFD |
1921 | #if EV_USE_EVENTFD |
1523 | if (evfd >= 0) |
1922 | if (evfd >= 0) |
1524 | close (evfd); |
1923 | close (evfd); |
1525 | #endif |
1924 | #endif |
1526 | |
1925 | |
1527 | if (evpipe [0] >= 0) |
1926 | if (evpipe [0] >= 0) |
1528 | { |
1927 | { |
1529 | close (evpipe [0]); |
1928 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1530 | close (evpipe [1]); |
1929 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1531 | } |
1930 | } |
1532 | |
1931 | |
|
|
1932 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1533 | evpipe_init (EV_A); |
1933 | evpipe_init (EV_A); |
1534 | /* now iterate over everything, in case we missed something */ |
1934 | /* now iterate over everything, in case we missed something */ |
1535 | pipecb (EV_A_ &pipeev, EV_READ); |
1935 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1936 | #endif |
1536 | } |
1937 | } |
1537 | |
1938 | |
1538 | postfork = 0; |
1939 | postfork = 0; |
1539 | } |
1940 | } |
1540 | |
1941 | |
1541 | #if EV_MULTIPLICITY |
1942 | #if EV_MULTIPLICITY |
1542 | |
1943 | |
1543 | struct ev_loop * |
1944 | struct ev_loop * |
1544 | ev_loop_new (unsigned int flags) |
1945 | ev_loop_new (unsigned int flags) |
1545 | { |
1946 | { |
1546 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1947 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1547 | |
1948 | |
1548 | memset (loop, 0, sizeof (struct ev_loop)); |
1949 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1549 | |
|
|
1550 | loop_init (EV_A_ flags); |
1950 | loop_init (EV_A_ flags); |
1551 | |
1951 | |
1552 | if (ev_backend (EV_A)) |
1952 | if (ev_backend (EV_A)) |
1553 | return loop; |
1953 | return EV_A; |
1554 | |
1954 | |
|
|
1955 | ev_free (EV_A); |
1555 | return 0; |
1956 | return 0; |
1556 | } |
1957 | } |
1557 | |
1958 | |
1558 | void |
1959 | #endif /* multiplicity */ |
1559 | ev_loop_destroy (EV_P) |
|
|
1560 | { |
|
|
1561 | loop_destroy (EV_A); |
|
|
1562 | ev_free (loop); |
|
|
1563 | } |
|
|
1564 | |
|
|
1565 | void |
|
|
1566 | ev_loop_fork (EV_P) |
|
|
1567 | { |
|
|
1568 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1569 | } |
|
|
1570 | |
1960 | |
1571 | #if EV_VERIFY |
1961 | #if EV_VERIFY |
1572 | static void noinline |
1962 | static void noinline |
1573 | verify_watcher (EV_P_ W w) |
1963 | verify_watcher (EV_P_ W w) |
1574 | { |
1964 | { |
… | |
… | |
1602 | verify_watcher (EV_A_ ws [cnt]); |
1992 | verify_watcher (EV_A_ ws [cnt]); |
1603 | } |
1993 | } |
1604 | } |
1994 | } |
1605 | #endif |
1995 | #endif |
1606 | |
1996 | |
|
|
1997 | #if EV_FEATURE_API |
1607 | void |
1998 | void |
1608 | ev_loop_verify (EV_P) |
1999 | ev_verify (EV_P) |
1609 | { |
2000 | { |
1610 | #if EV_VERIFY |
2001 | #if EV_VERIFY |
1611 | int i; |
2002 | int i; |
1612 | WL w; |
2003 | WL w; |
1613 | |
2004 | |
… | |
… | |
1647 | #if EV_FORK_ENABLE |
2038 | #if EV_FORK_ENABLE |
1648 | assert (forkmax >= forkcnt); |
2039 | assert (forkmax >= forkcnt); |
1649 | array_verify (EV_A_ (W *)forks, forkcnt); |
2040 | array_verify (EV_A_ (W *)forks, forkcnt); |
1650 | #endif |
2041 | #endif |
1651 | |
2042 | |
|
|
2043 | #if EV_CLEANUP_ENABLE |
|
|
2044 | assert (cleanupmax >= cleanupcnt); |
|
|
2045 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2046 | #endif |
|
|
2047 | |
1652 | #if EV_ASYNC_ENABLE |
2048 | #if EV_ASYNC_ENABLE |
1653 | assert (asyncmax >= asynccnt); |
2049 | assert (asyncmax >= asynccnt); |
1654 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2050 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1655 | #endif |
2051 | #endif |
1656 | |
2052 | |
|
|
2053 | #if EV_PREPARE_ENABLE |
1657 | assert (preparemax >= preparecnt); |
2054 | assert (preparemax >= preparecnt); |
1658 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2055 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2056 | #endif |
1659 | |
2057 | |
|
|
2058 | #if EV_CHECK_ENABLE |
1660 | assert (checkmax >= checkcnt); |
2059 | assert (checkmax >= checkcnt); |
1661 | array_verify (EV_A_ (W *)checks, checkcnt); |
2060 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2061 | #endif |
1662 | |
2062 | |
1663 | # if 0 |
2063 | # if 0 |
|
|
2064 | #if EV_CHILD_ENABLE |
1664 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2065 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1665 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2066 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2067 | #endif |
1666 | # endif |
2068 | # endif |
1667 | #endif |
2069 | #endif |
1668 | } |
2070 | } |
1669 | |
2071 | #endif |
1670 | #endif /* multiplicity */ |
|
|
1671 | |
2072 | |
1672 | #if EV_MULTIPLICITY |
2073 | #if EV_MULTIPLICITY |
1673 | struct ev_loop * |
2074 | struct ev_loop * |
1674 | ev_default_loop_init (unsigned int flags) |
|
|
1675 | #else |
2075 | #else |
1676 | int |
2076 | int |
|
|
2077 | #endif |
1677 | ev_default_loop (unsigned int flags) |
2078 | ev_default_loop (unsigned int flags) |
1678 | #endif |
|
|
1679 | { |
2079 | { |
1680 | if (!ev_default_loop_ptr) |
2080 | if (!ev_default_loop_ptr) |
1681 | { |
2081 | { |
1682 | #if EV_MULTIPLICITY |
2082 | #if EV_MULTIPLICITY |
1683 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2083 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1684 | #else |
2084 | #else |
1685 | ev_default_loop_ptr = 1; |
2085 | ev_default_loop_ptr = 1; |
1686 | #endif |
2086 | #endif |
1687 | |
2087 | |
1688 | loop_init (EV_A_ flags); |
2088 | loop_init (EV_A_ flags); |
1689 | |
2089 | |
1690 | if (ev_backend (EV_A)) |
2090 | if (ev_backend (EV_A)) |
1691 | { |
2091 | { |
1692 | #ifndef _WIN32 |
2092 | #if EV_CHILD_ENABLE |
1693 | ev_signal_init (&childev, childcb, SIGCHLD); |
2093 | ev_signal_init (&childev, childcb, SIGCHLD); |
1694 | ev_set_priority (&childev, EV_MAXPRI); |
2094 | ev_set_priority (&childev, EV_MAXPRI); |
1695 | ev_signal_start (EV_A_ &childev); |
2095 | ev_signal_start (EV_A_ &childev); |
1696 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2096 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1697 | #endif |
2097 | #endif |
… | |
… | |
1702 | |
2102 | |
1703 | return ev_default_loop_ptr; |
2103 | return ev_default_loop_ptr; |
1704 | } |
2104 | } |
1705 | |
2105 | |
1706 | void |
2106 | void |
1707 | ev_default_destroy (void) |
2107 | ev_loop_fork (EV_P) |
1708 | { |
2108 | { |
1709 | #if EV_MULTIPLICITY |
|
|
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1711 | #endif |
|
|
1712 | |
|
|
1713 | ev_default_loop_ptr = 0; |
|
|
1714 | |
|
|
1715 | #ifndef _WIN32 |
|
|
1716 | ev_ref (EV_A); /* child watcher */ |
|
|
1717 | ev_signal_stop (EV_A_ &childev); |
|
|
1718 | #endif |
|
|
1719 | |
|
|
1720 | loop_destroy (EV_A); |
|
|
1721 | } |
|
|
1722 | |
|
|
1723 | void |
|
|
1724 | ev_default_fork (void) |
|
|
1725 | { |
|
|
1726 | #if EV_MULTIPLICITY |
|
|
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1728 | #endif |
|
|
1729 | |
|
|
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
2109 | postfork = 1; /* must be in line with ev_default_fork */ |
1731 | } |
2110 | } |
1732 | |
2111 | |
1733 | /*****************************************************************************/ |
2112 | /*****************************************************************************/ |
1734 | |
2113 | |
1735 | void |
2114 | void |
1736 | ev_invoke (EV_P_ void *w, int revents) |
2115 | ev_invoke (EV_P_ void *w, int revents) |
1737 | { |
2116 | { |
1738 | EV_CB_INVOKE ((W)w, revents); |
2117 | EV_CB_INVOKE ((W)w, revents); |
1739 | } |
2118 | } |
1740 | |
2119 | |
1741 | inline_speed void |
2120 | unsigned int |
1742 | call_pending (EV_P) |
2121 | ev_pending_count (EV_P) |
|
|
2122 | { |
|
|
2123 | int pri; |
|
|
2124 | unsigned int count = 0; |
|
|
2125 | |
|
|
2126 | for (pri = NUMPRI; pri--; ) |
|
|
2127 | count += pendingcnt [pri]; |
|
|
2128 | |
|
|
2129 | return count; |
|
|
2130 | } |
|
|
2131 | |
|
|
2132 | void noinline |
|
|
2133 | ev_invoke_pending (EV_P) |
1743 | { |
2134 | { |
1744 | int pri; |
2135 | int pri; |
1745 | |
2136 | |
1746 | for (pri = NUMPRI; pri--; ) |
2137 | for (pri = NUMPRI; pri--; ) |
1747 | while (pendingcnt [pri]) |
2138 | while (pendingcnt [pri]) |
1748 | { |
2139 | { |
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2140 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1750 | |
2141 | |
1751 | if (expect_true (p->w)) |
|
|
1752 | { |
|
|
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1754 | |
|
|
1755 | p->w->pending = 0; |
2142 | p->w->pending = 0; |
1756 | EV_CB_INVOKE (p->w, p->events); |
2143 | EV_CB_INVOKE (p->w, p->events); |
1757 | EV_FREQUENT_CHECK; |
2144 | EV_FREQUENT_CHECK; |
1758 | } |
|
|
1759 | } |
2145 | } |
1760 | } |
2146 | } |
1761 | |
2147 | |
1762 | #if EV_IDLE_ENABLE |
2148 | #if EV_IDLE_ENABLE |
|
|
2149 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2150 | /* only when higher priorities are idle" logic */ |
1763 | inline_size void |
2151 | inline_size void |
1764 | idle_reify (EV_P) |
2152 | idle_reify (EV_P) |
1765 | { |
2153 | { |
1766 | if (expect_false (idleall)) |
2154 | if (expect_false (idleall)) |
1767 | { |
2155 | { |
… | |
… | |
1780 | } |
2168 | } |
1781 | } |
2169 | } |
1782 | } |
2170 | } |
1783 | #endif |
2171 | #endif |
1784 | |
2172 | |
|
|
2173 | /* make timers pending */ |
1785 | inline_size void |
2174 | inline_size void |
1786 | timers_reify (EV_P) |
2175 | timers_reify (EV_P) |
1787 | { |
2176 | { |
1788 | EV_FREQUENT_CHECK; |
2177 | EV_FREQUENT_CHECK; |
1789 | |
2178 | |
… | |
… | |
1813 | EV_FREQUENT_CHECK; |
2202 | EV_FREQUENT_CHECK; |
1814 | feed_reverse (EV_A_ (W)w); |
2203 | feed_reverse (EV_A_ (W)w); |
1815 | } |
2204 | } |
1816 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2205 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1817 | |
2206 | |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2207 | feed_reverse_done (EV_A_ EV_TIMER); |
1819 | } |
2208 | } |
1820 | } |
2209 | } |
1821 | |
2210 | |
1822 | #if EV_PERIODIC_ENABLE |
2211 | #if EV_PERIODIC_ENABLE |
|
|
2212 | |
|
|
2213 | inline_speed void |
|
|
2214 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2215 | { |
|
|
2216 | /* TODO: use slow but potentially more correct incremental algo, */ |
|
|
2217 | /* also do not rely on ceil */ |
|
|
2218 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2219 | } |
|
|
2220 | |
|
|
2221 | /* make periodics pending */ |
1823 | inline_size void |
2222 | inline_size void |
1824 | periodics_reify (EV_P) |
2223 | periodics_reify (EV_P) |
1825 | { |
2224 | { |
1826 | EV_FREQUENT_CHECK; |
2225 | EV_FREQUENT_CHECK; |
1827 | |
2226 | |
… | |
… | |
1845 | ANHE_at_cache (periodics [HEAP0]); |
2244 | ANHE_at_cache (periodics [HEAP0]); |
1846 | downheap (periodics, periodiccnt, HEAP0); |
2245 | downheap (periodics, periodiccnt, HEAP0); |
1847 | } |
2246 | } |
1848 | else if (w->interval) |
2247 | else if (w->interval) |
1849 | { |
2248 | { |
1850 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2249 | periodic_recalc (EV_A_ w); |
|
|
2250 | |
1851 | /* if next trigger time is not sufficiently in the future, put it there */ |
2251 | /* if next trigger time is not sufficiently in the future, put it there */ |
1852 | /* this might happen because of floating point inexactness */ |
2252 | /* this might happen because of floating point inexactness */ |
1853 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
2253 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
1854 | { |
2254 | { |
1855 | ev_at (w) += w->interval; |
2255 | ev_at (w) += w->interval; |
… | |
… | |
1874 | |
2274 | |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2275 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1876 | } |
2276 | } |
1877 | } |
2277 | } |
1878 | |
2278 | |
|
|
2279 | /* simply recalculate all periodics */ |
|
|
2280 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1879 | static void noinline |
2281 | static void noinline |
1880 | periodics_reschedule (EV_P) |
2282 | periodics_reschedule (EV_P) |
1881 | { |
2283 | { |
1882 | int i; |
2284 | int i; |
1883 | |
2285 | |
… | |
… | |
1887 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2289 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1888 | |
2290 | |
1889 | if (w->reschedule_cb) |
2291 | if (w->reschedule_cb) |
1890 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2292 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1891 | else if (w->interval) |
2293 | else if (w->interval) |
1892 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2294 | periodic_recalc (EV_A_ w); |
1893 | |
2295 | |
1894 | ANHE_at_cache (periodics [i]); |
2296 | ANHE_at_cache (periodics [i]); |
1895 | } |
2297 | } |
1896 | |
2298 | |
1897 | reheap (periodics, periodiccnt); |
2299 | reheap (periodics, periodiccnt); |
1898 | } |
2300 | } |
1899 | #endif |
2301 | #endif |
1900 | |
2302 | |
|
|
2303 | /* adjust all timers by a given offset */ |
1901 | static void noinline |
2304 | static void noinline |
1902 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2305 | timers_reschedule (EV_P_ ev_tstamp adjust) |
1903 | { |
2306 | { |
1904 | int i; |
2307 | int i; |
1905 | |
2308 | |
… | |
… | |
1909 | ANHE_w (*he)->at += adjust; |
2312 | ANHE_w (*he)->at += adjust; |
1910 | ANHE_at_cache (*he); |
2313 | ANHE_at_cache (*he); |
1911 | } |
2314 | } |
1912 | } |
2315 | } |
1913 | |
2316 | |
|
|
2317 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2318 | /* also detect if there was a timejump, and act accordingly */ |
1914 | inline_speed void |
2319 | inline_speed void |
1915 | time_update (EV_P_ ev_tstamp max_block) |
2320 | time_update (EV_P_ ev_tstamp max_block) |
1916 | { |
2321 | { |
1917 | int i; |
|
|
1918 | |
|
|
1919 | #if EV_USE_MONOTONIC |
2322 | #if EV_USE_MONOTONIC |
1920 | if (expect_true (have_monotonic)) |
2323 | if (expect_true (have_monotonic)) |
1921 | { |
2324 | { |
|
|
2325 | int i; |
1922 | ev_tstamp odiff = rtmn_diff; |
2326 | ev_tstamp odiff = rtmn_diff; |
1923 | |
2327 | |
1924 | mn_now = get_clock (); |
2328 | mn_now = get_clock (); |
1925 | |
2329 | |
1926 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2330 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1976 | |
2380 | |
1977 | mn_now = ev_rt_now; |
2381 | mn_now = ev_rt_now; |
1978 | } |
2382 | } |
1979 | } |
2383 | } |
1980 | |
2384 | |
1981 | static int loop_done; |
|
|
1982 | |
|
|
1983 | void |
2385 | void |
1984 | ev_loop (EV_P_ int flags) |
2386 | ev_run (EV_P_ int flags) |
1985 | { |
2387 | { |
|
|
2388 | #if EV_FEATURE_API |
|
|
2389 | ++loop_depth; |
|
|
2390 | #endif |
|
|
2391 | |
|
|
2392 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2393 | |
1986 | loop_done = EVUNLOOP_CANCEL; |
2394 | loop_done = EVBREAK_CANCEL; |
1987 | |
2395 | |
1988 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2396 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1989 | |
2397 | |
1990 | do |
2398 | do |
1991 | { |
2399 | { |
1992 | #if EV_VERIFY >= 2 |
2400 | #if EV_VERIFY >= 2 |
1993 | ev_loop_verify (EV_A); |
2401 | ev_verify (EV_A); |
1994 | #endif |
2402 | #endif |
1995 | |
2403 | |
1996 | #ifndef _WIN32 |
2404 | #ifndef _WIN32 |
1997 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2405 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1998 | if (expect_false (getpid () != curpid)) |
2406 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2006 | /* we might have forked, so queue fork handlers */ |
2414 | /* we might have forked, so queue fork handlers */ |
2007 | if (expect_false (postfork)) |
2415 | if (expect_false (postfork)) |
2008 | if (forkcnt) |
2416 | if (forkcnt) |
2009 | { |
2417 | { |
2010 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2418 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2011 | call_pending (EV_A); |
2419 | EV_INVOKE_PENDING; |
2012 | } |
2420 | } |
2013 | #endif |
2421 | #endif |
2014 | |
2422 | |
|
|
2423 | #if EV_PREPARE_ENABLE |
2015 | /* queue prepare watchers (and execute them) */ |
2424 | /* queue prepare watchers (and execute them) */ |
2016 | if (expect_false (preparecnt)) |
2425 | if (expect_false (preparecnt)) |
2017 | { |
2426 | { |
2018 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2427 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2019 | call_pending (EV_A); |
2428 | EV_INVOKE_PENDING; |
2020 | } |
2429 | } |
|
|
2430 | #endif |
|
|
2431 | |
|
|
2432 | if (expect_false (loop_done)) |
|
|
2433 | break; |
2021 | |
2434 | |
2022 | /* we might have forked, so reify kernel state if necessary */ |
2435 | /* we might have forked, so reify kernel state if necessary */ |
2023 | if (expect_false (postfork)) |
2436 | if (expect_false (postfork)) |
2024 | loop_fork (EV_A); |
2437 | loop_fork (EV_A); |
2025 | |
2438 | |
… | |
… | |
2029 | /* calculate blocking time */ |
2442 | /* calculate blocking time */ |
2030 | { |
2443 | { |
2031 | ev_tstamp waittime = 0.; |
2444 | ev_tstamp waittime = 0.; |
2032 | ev_tstamp sleeptime = 0.; |
2445 | ev_tstamp sleeptime = 0.; |
2033 | |
2446 | |
|
|
2447 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2448 | ev_tstamp prev_mn_now = mn_now; |
|
|
2449 | |
|
|
2450 | /* update time to cancel out callback processing overhead */ |
|
|
2451 | time_update (EV_A_ 1e100); |
|
|
2452 | |
2034 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2453 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2035 | { |
2454 | { |
2036 | /* update time to cancel out callback processing overhead */ |
|
|
2037 | time_update (EV_A_ 1e100); |
|
|
2038 | |
|
|
2039 | waittime = MAX_BLOCKTIME; |
2455 | waittime = MAX_BLOCKTIME; |
2040 | |
2456 | |
2041 | if (timercnt) |
2457 | if (timercnt) |
2042 | { |
2458 | { |
2043 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2459 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2050 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2466 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2051 | if (waittime > to) waittime = to; |
2467 | if (waittime > to) waittime = to; |
2052 | } |
2468 | } |
2053 | #endif |
2469 | #endif |
2054 | |
2470 | |
|
|
2471 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2055 | if (expect_false (waittime < timeout_blocktime)) |
2472 | if (expect_false (waittime < timeout_blocktime)) |
2056 | waittime = timeout_blocktime; |
2473 | waittime = timeout_blocktime; |
2057 | |
2474 | |
2058 | sleeptime = waittime - backend_fudge; |
2475 | /* extra check because io_blocktime is commonly 0 */ |
2059 | |
|
|
2060 | if (expect_true (sleeptime > io_blocktime)) |
2476 | if (expect_false (io_blocktime)) |
2061 | sleeptime = io_blocktime; |
|
|
2062 | |
|
|
2063 | if (sleeptime) |
|
|
2064 | { |
2477 | { |
|
|
2478 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2479 | |
|
|
2480 | if (sleeptime > waittime - backend_fudge) |
|
|
2481 | sleeptime = waittime - backend_fudge; |
|
|
2482 | |
|
|
2483 | if (expect_true (sleeptime > 0.)) |
|
|
2484 | { |
2065 | ev_sleep (sleeptime); |
2485 | ev_sleep (sleeptime); |
2066 | waittime -= sleeptime; |
2486 | waittime -= sleeptime; |
|
|
2487 | } |
2067 | } |
2488 | } |
2068 | } |
2489 | } |
2069 | |
2490 | |
|
|
2491 | #if EV_FEATURE_API |
2070 | ++loop_count; |
2492 | ++loop_count; |
|
|
2493 | #endif |
|
|
2494 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2071 | backend_poll (EV_A_ waittime); |
2495 | backend_poll (EV_A_ waittime); |
|
|
2496 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2072 | |
2497 | |
2073 | /* update ev_rt_now, do magic */ |
2498 | /* update ev_rt_now, do magic */ |
2074 | time_update (EV_A_ waittime + sleeptime); |
2499 | time_update (EV_A_ waittime + sleeptime); |
2075 | } |
2500 | } |
2076 | |
2501 | |
… | |
… | |
2083 | #if EV_IDLE_ENABLE |
2508 | #if EV_IDLE_ENABLE |
2084 | /* queue idle watchers unless other events are pending */ |
2509 | /* queue idle watchers unless other events are pending */ |
2085 | idle_reify (EV_A); |
2510 | idle_reify (EV_A); |
2086 | #endif |
2511 | #endif |
2087 | |
2512 | |
|
|
2513 | #if EV_CHECK_ENABLE |
2088 | /* queue check watchers, to be executed first */ |
2514 | /* queue check watchers, to be executed first */ |
2089 | if (expect_false (checkcnt)) |
2515 | if (expect_false (checkcnt)) |
2090 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2516 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2517 | #endif |
2091 | |
2518 | |
2092 | call_pending (EV_A); |
2519 | EV_INVOKE_PENDING; |
2093 | } |
2520 | } |
2094 | while (expect_true ( |
2521 | while (expect_true ( |
2095 | activecnt |
2522 | activecnt |
2096 | && !loop_done |
2523 | && !loop_done |
2097 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2524 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2098 | )); |
2525 | )); |
2099 | |
2526 | |
2100 | if (loop_done == EVUNLOOP_ONE) |
2527 | if (loop_done == EVBREAK_ONE) |
2101 | loop_done = EVUNLOOP_CANCEL; |
2528 | loop_done = EVBREAK_CANCEL; |
2102 | } |
|
|
2103 | |
2529 | |
|
|
2530 | #if EV_FEATURE_API |
|
|
2531 | --loop_depth; |
|
|
2532 | #endif |
|
|
2533 | } |
|
|
2534 | |
2104 | void |
2535 | void |
2105 | ev_unloop (EV_P_ int how) |
2536 | ev_break (EV_P_ int how) |
2106 | { |
2537 | { |
2107 | loop_done = how; |
2538 | loop_done = how; |
2108 | } |
2539 | } |
2109 | |
2540 | |
2110 | void |
2541 | void |
… | |
… | |
2137 | ev_tstamp mn_prev = mn_now; |
2568 | ev_tstamp mn_prev = mn_now; |
2138 | |
2569 | |
2139 | ev_now_update (EV_A); |
2570 | ev_now_update (EV_A); |
2140 | timers_reschedule (EV_A_ mn_now - mn_prev); |
2571 | timers_reschedule (EV_A_ mn_now - mn_prev); |
2141 | #if EV_PERIODIC_ENABLE |
2572 | #if EV_PERIODIC_ENABLE |
|
|
2573 | /* TODO: really do this? */ |
2142 | periodics_reschedule (EV_A); |
2574 | periodics_reschedule (EV_A); |
2143 | #endif |
2575 | #endif |
2144 | } |
2576 | } |
2145 | |
2577 | |
2146 | /*****************************************************************************/ |
2578 | /*****************************************************************************/ |
|
|
2579 | /* singly-linked list management, used when the expected list length is short */ |
2147 | |
2580 | |
2148 | inline_size void |
2581 | inline_size void |
2149 | wlist_add (WL *head, WL elem) |
2582 | wlist_add (WL *head, WL elem) |
2150 | { |
2583 | { |
2151 | elem->next = *head; |
2584 | elem->next = *head; |
… | |
… | |
2155 | inline_size void |
2588 | inline_size void |
2156 | wlist_del (WL *head, WL elem) |
2589 | wlist_del (WL *head, WL elem) |
2157 | { |
2590 | { |
2158 | while (*head) |
2591 | while (*head) |
2159 | { |
2592 | { |
2160 | if (*head == elem) |
2593 | if (expect_true (*head == elem)) |
2161 | { |
2594 | { |
2162 | *head = elem->next; |
2595 | *head = elem->next; |
2163 | return; |
2596 | break; |
2164 | } |
2597 | } |
2165 | |
2598 | |
2166 | head = &(*head)->next; |
2599 | head = &(*head)->next; |
2167 | } |
2600 | } |
2168 | } |
2601 | } |
2169 | |
2602 | |
|
|
2603 | /* internal, faster, version of ev_clear_pending */ |
2170 | inline_speed void |
2604 | inline_speed void |
2171 | clear_pending (EV_P_ W w) |
2605 | clear_pending (EV_P_ W w) |
2172 | { |
2606 | { |
2173 | if (w->pending) |
2607 | if (w->pending) |
2174 | { |
2608 | { |
2175 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2609 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2176 | w->pending = 0; |
2610 | w->pending = 0; |
2177 | } |
2611 | } |
2178 | } |
2612 | } |
2179 | |
2613 | |
2180 | int |
2614 | int |
… | |
… | |
2184 | int pending = w_->pending; |
2618 | int pending = w_->pending; |
2185 | |
2619 | |
2186 | if (expect_true (pending)) |
2620 | if (expect_true (pending)) |
2187 | { |
2621 | { |
2188 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2622 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2623 | p->w = (W)&pending_w; |
2189 | w_->pending = 0; |
2624 | w_->pending = 0; |
2190 | p->w = 0; |
|
|
2191 | return p->events; |
2625 | return p->events; |
2192 | } |
2626 | } |
2193 | else |
2627 | else |
2194 | return 0; |
2628 | return 0; |
2195 | } |
2629 | } |
2196 | |
2630 | |
2197 | inline_size void |
2631 | inline_size void |
2198 | pri_adjust (EV_P_ W w) |
2632 | pri_adjust (EV_P_ W w) |
2199 | { |
2633 | { |
2200 | int pri = w->priority; |
2634 | int pri = ev_priority (w); |
2201 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2635 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2202 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2636 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2203 | w->priority = pri; |
2637 | ev_set_priority (w, pri); |
2204 | } |
2638 | } |
2205 | |
2639 | |
2206 | inline_speed void |
2640 | inline_speed void |
2207 | ev_start (EV_P_ W w, int active) |
2641 | ev_start (EV_P_ W w, int active) |
2208 | { |
2642 | { |
… | |
… | |
2227 | |
2661 | |
2228 | if (expect_false (ev_is_active (w))) |
2662 | if (expect_false (ev_is_active (w))) |
2229 | return; |
2663 | return; |
2230 | |
2664 | |
2231 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2665 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2232 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2666 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2233 | |
2667 | |
2234 | EV_FREQUENT_CHECK; |
2668 | EV_FREQUENT_CHECK; |
2235 | |
2669 | |
2236 | ev_start (EV_A_ (W)w, 1); |
2670 | ev_start (EV_A_ (W)w, 1); |
2237 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2671 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2238 | wlist_add (&anfds[fd].head, (WL)w); |
2672 | wlist_add (&anfds[fd].head, (WL)w); |
2239 | |
2673 | |
2240 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2674 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2241 | w->events &= ~EV__IOFDSET; |
2675 | w->events &= ~EV__IOFDSET; |
2242 | |
2676 | |
2243 | EV_FREQUENT_CHECK; |
2677 | EV_FREQUENT_CHECK; |
2244 | } |
2678 | } |
2245 | |
2679 | |
… | |
… | |
2255 | EV_FREQUENT_CHECK; |
2689 | EV_FREQUENT_CHECK; |
2256 | |
2690 | |
2257 | wlist_del (&anfds[w->fd].head, (WL)w); |
2691 | wlist_del (&anfds[w->fd].head, (WL)w); |
2258 | ev_stop (EV_A_ (W)w); |
2692 | ev_stop (EV_A_ (W)w); |
2259 | |
2693 | |
2260 | fd_change (EV_A_ w->fd, 1); |
2694 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2261 | |
2695 | |
2262 | EV_FREQUENT_CHECK; |
2696 | EV_FREQUENT_CHECK; |
2263 | } |
2697 | } |
2264 | |
2698 | |
2265 | void noinline |
2699 | void noinline |
… | |
… | |
2307 | timers [active] = timers [timercnt + HEAP0]; |
2741 | timers [active] = timers [timercnt + HEAP0]; |
2308 | adjustheap (timers, timercnt, active); |
2742 | adjustheap (timers, timercnt, active); |
2309 | } |
2743 | } |
2310 | } |
2744 | } |
2311 | |
2745 | |
2312 | EV_FREQUENT_CHECK; |
|
|
2313 | |
|
|
2314 | ev_at (w) -= mn_now; |
2746 | ev_at (w) -= mn_now; |
2315 | |
2747 | |
2316 | ev_stop (EV_A_ (W)w); |
2748 | ev_stop (EV_A_ (W)w); |
|
|
2749 | |
|
|
2750 | EV_FREQUENT_CHECK; |
2317 | } |
2751 | } |
2318 | |
2752 | |
2319 | void noinline |
2753 | void noinline |
2320 | ev_timer_again (EV_P_ ev_timer *w) |
2754 | ev_timer_again (EV_P_ ev_timer *w) |
2321 | { |
2755 | { |
… | |
… | |
2339 | } |
2773 | } |
2340 | |
2774 | |
2341 | EV_FREQUENT_CHECK; |
2775 | EV_FREQUENT_CHECK; |
2342 | } |
2776 | } |
2343 | |
2777 | |
|
|
2778 | ev_tstamp |
|
|
2779 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2780 | { |
|
|
2781 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2782 | } |
|
|
2783 | |
2344 | #if EV_PERIODIC_ENABLE |
2784 | #if EV_PERIODIC_ENABLE |
2345 | void noinline |
2785 | void noinline |
2346 | ev_periodic_start (EV_P_ ev_periodic *w) |
2786 | ev_periodic_start (EV_P_ ev_periodic *w) |
2347 | { |
2787 | { |
2348 | if (expect_false (ev_is_active (w))) |
2788 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2351 | if (w->reschedule_cb) |
2791 | if (w->reschedule_cb) |
2352 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2792 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2353 | else if (w->interval) |
2793 | else if (w->interval) |
2354 | { |
2794 | { |
2355 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2795 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2356 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2796 | periodic_recalc (EV_A_ w); |
2357 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2358 | } |
2797 | } |
2359 | else |
2798 | else |
2360 | ev_at (w) = w->offset; |
2799 | ev_at (w) = w->offset; |
2361 | |
2800 | |
2362 | EV_FREQUENT_CHECK; |
2801 | EV_FREQUENT_CHECK; |
… | |
… | |
2394 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2833 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2395 | adjustheap (periodics, periodiccnt, active); |
2834 | adjustheap (periodics, periodiccnt, active); |
2396 | } |
2835 | } |
2397 | } |
2836 | } |
2398 | |
2837 | |
2399 | EV_FREQUENT_CHECK; |
|
|
2400 | |
|
|
2401 | ev_stop (EV_A_ (W)w); |
2838 | ev_stop (EV_A_ (W)w); |
|
|
2839 | |
|
|
2840 | EV_FREQUENT_CHECK; |
2402 | } |
2841 | } |
2403 | |
2842 | |
2404 | void noinline |
2843 | void noinline |
2405 | ev_periodic_again (EV_P_ ev_periodic *w) |
2844 | ev_periodic_again (EV_P_ ev_periodic *w) |
2406 | { |
2845 | { |
… | |
… | |
2412 | |
2851 | |
2413 | #ifndef SA_RESTART |
2852 | #ifndef SA_RESTART |
2414 | # define SA_RESTART 0 |
2853 | # define SA_RESTART 0 |
2415 | #endif |
2854 | #endif |
2416 | |
2855 | |
|
|
2856 | #if EV_SIGNAL_ENABLE |
|
|
2857 | |
2417 | void noinline |
2858 | void noinline |
2418 | ev_signal_start (EV_P_ ev_signal *w) |
2859 | ev_signal_start (EV_P_ ev_signal *w) |
2419 | { |
2860 | { |
2420 | #if EV_MULTIPLICITY |
|
|
2421 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2422 | #endif |
|
|
2423 | if (expect_false (ev_is_active (w))) |
2861 | if (expect_false (ev_is_active (w))) |
2424 | return; |
2862 | return; |
2425 | |
2863 | |
2426 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2864 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2427 | |
2865 | |
2428 | evpipe_init (EV_A); |
2866 | #if EV_MULTIPLICITY |
|
|
2867 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2868 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2429 | |
2869 | |
2430 | EV_FREQUENT_CHECK; |
2870 | signals [w->signum - 1].loop = EV_A; |
|
|
2871 | #endif |
2431 | |
2872 | |
|
|
2873 | EV_FREQUENT_CHECK; |
|
|
2874 | |
|
|
2875 | #if EV_USE_SIGNALFD |
|
|
2876 | if (sigfd == -2) |
2432 | { |
2877 | { |
2433 | #ifndef _WIN32 |
2878 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2434 | sigset_t full, prev; |
2879 | if (sigfd < 0 && errno == EINVAL) |
2435 | sigfillset (&full); |
2880 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2436 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2437 | #endif |
|
|
2438 | |
2881 | |
2439 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2882 | if (sigfd >= 0) |
|
|
2883 | { |
|
|
2884 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2440 | |
2885 | |
2441 | #ifndef _WIN32 |
2886 | sigemptyset (&sigfd_set); |
2442 | sigprocmask (SIG_SETMASK, &prev, 0); |
2887 | |
2443 | #endif |
2888 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2889 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2890 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2891 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2892 | } |
2444 | } |
2893 | } |
|
|
2894 | |
|
|
2895 | if (sigfd >= 0) |
|
|
2896 | { |
|
|
2897 | /* TODO: check .head */ |
|
|
2898 | sigaddset (&sigfd_set, w->signum); |
|
|
2899 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2900 | |
|
|
2901 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2902 | } |
|
|
2903 | #endif |
2445 | |
2904 | |
2446 | ev_start (EV_A_ (W)w, 1); |
2905 | ev_start (EV_A_ (W)w, 1); |
2447 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2906 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2448 | |
2907 | |
2449 | if (!((WL)w)->next) |
2908 | if (!((WL)w)->next) |
|
|
2909 | # if EV_USE_SIGNALFD |
|
|
2910 | if (sigfd < 0) /*TODO*/ |
|
|
2911 | # endif |
2450 | { |
2912 | { |
2451 | #if _WIN32 |
2913 | # ifdef _WIN32 |
|
|
2914 | evpipe_init (EV_A); |
|
|
2915 | |
2452 | signal (w->signum, ev_sighandler); |
2916 | signal (w->signum, ev_sighandler); |
2453 | #else |
2917 | # else |
2454 | struct sigaction sa; |
2918 | struct sigaction sa; |
|
|
2919 | |
|
|
2920 | evpipe_init (EV_A); |
|
|
2921 | |
2455 | sa.sa_handler = ev_sighandler; |
2922 | sa.sa_handler = ev_sighandler; |
2456 | sigfillset (&sa.sa_mask); |
2923 | sigfillset (&sa.sa_mask); |
2457 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2924 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2458 | sigaction (w->signum, &sa, 0); |
2925 | sigaction (w->signum, &sa, 0); |
|
|
2926 | |
|
|
2927 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2928 | { |
|
|
2929 | sigemptyset (&sa.sa_mask); |
|
|
2930 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2931 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2932 | } |
2459 | #endif |
2933 | #endif |
2460 | } |
2934 | } |
2461 | |
2935 | |
2462 | EV_FREQUENT_CHECK; |
2936 | EV_FREQUENT_CHECK; |
2463 | } |
2937 | } |
2464 | |
2938 | |
2465 | void noinline |
2939 | void noinline |
… | |
… | |
2473 | |
2947 | |
2474 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2948 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2475 | ev_stop (EV_A_ (W)w); |
2949 | ev_stop (EV_A_ (W)w); |
2476 | |
2950 | |
2477 | if (!signals [w->signum - 1].head) |
2951 | if (!signals [w->signum - 1].head) |
|
|
2952 | { |
|
|
2953 | #if EV_MULTIPLICITY |
|
|
2954 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2955 | #endif |
|
|
2956 | #if EV_USE_SIGNALFD |
|
|
2957 | if (sigfd >= 0) |
|
|
2958 | { |
|
|
2959 | sigset_t ss; |
|
|
2960 | |
|
|
2961 | sigemptyset (&ss); |
|
|
2962 | sigaddset (&ss, w->signum); |
|
|
2963 | sigdelset (&sigfd_set, w->signum); |
|
|
2964 | |
|
|
2965 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2966 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2967 | } |
|
|
2968 | else |
|
|
2969 | #endif |
2478 | signal (w->signum, SIG_DFL); |
2970 | signal (w->signum, SIG_DFL); |
|
|
2971 | } |
2479 | |
2972 | |
2480 | EV_FREQUENT_CHECK; |
2973 | EV_FREQUENT_CHECK; |
2481 | } |
2974 | } |
|
|
2975 | |
|
|
2976 | #endif |
|
|
2977 | |
|
|
2978 | #if EV_CHILD_ENABLE |
2482 | |
2979 | |
2483 | void |
2980 | void |
2484 | ev_child_start (EV_P_ ev_child *w) |
2981 | ev_child_start (EV_P_ ev_child *w) |
2485 | { |
2982 | { |
2486 | #if EV_MULTIPLICITY |
2983 | #if EV_MULTIPLICITY |
… | |
… | |
2490 | return; |
2987 | return; |
2491 | |
2988 | |
2492 | EV_FREQUENT_CHECK; |
2989 | EV_FREQUENT_CHECK; |
2493 | |
2990 | |
2494 | ev_start (EV_A_ (W)w, 1); |
2991 | ev_start (EV_A_ (W)w, 1); |
2495 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2992 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2496 | |
2993 | |
2497 | EV_FREQUENT_CHECK; |
2994 | EV_FREQUENT_CHECK; |
2498 | } |
2995 | } |
2499 | |
2996 | |
2500 | void |
2997 | void |
… | |
… | |
2504 | if (expect_false (!ev_is_active (w))) |
3001 | if (expect_false (!ev_is_active (w))) |
2505 | return; |
3002 | return; |
2506 | |
3003 | |
2507 | EV_FREQUENT_CHECK; |
3004 | EV_FREQUENT_CHECK; |
2508 | |
3005 | |
2509 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3006 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2510 | ev_stop (EV_A_ (W)w); |
3007 | ev_stop (EV_A_ (W)w); |
2511 | |
3008 | |
2512 | EV_FREQUENT_CHECK; |
3009 | EV_FREQUENT_CHECK; |
2513 | } |
3010 | } |
|
|
3011 | |
|
|
3012 | #endif |
2514 | |
3013 | |
2515 | #if EV_STAT_ENABLE |
3014 | #if EV_STAT_ENABLE |
2516 | |
3015 | |
2517 | # ifdef _WIN32 |
3016 | # ifdef _WIN32 |
2518 | # undef lstat |
3017 | # undef lstat |
… | |
… | |
2524 | #define MIN_STAT_INTERVAL 0.1074891 |
3023 | #define MIN_STAT_INTERVAL 0.1074891 |
2525 | |
3024 | |
2526 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3025 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2527 | |
3026 | |
2528 | #if EV_USE_INOTIFY |
3027 | #if EV_USE_INOTIFY |
2529 | # define EV_INOTIFY_BUFSIZE 8192 |
3028 | |
|
|
3029 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3030 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2530 | |
3031 | |
2531 | static void noinline |
3032 | static void noinline |
2532 | infy_add (EV_P_ ev_stat *w) |
3033 | infy_add (EV_P_ ev_stat *w) |
2533 | { |
3034 | { |
2534 | 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); |
3035 | 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); |
2535 | |
3036 | |
2536 | if (w->wd < 0) |
3037 | if (w->wd >= 0) |
|
|
3038 | { |
|
|
3039 | struct statfs sfs; |
|
|
3040 | |
|
|
3041 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3042 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3043 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3044 | |
|
|
3045 | if (!fs_2625) |
|
|
3046 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3047 | else if (!statfs (w->path, &sfs) |
|
|
3048 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3049 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3050 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3051 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3052 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3053 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3054 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3055 | else |
|
|
3056 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2537 | { |
3057 | } |
|
|
3058 | else |
|
|
3059 | { |
|
|
3060 | /* can't use inotify, continue to stat */ |
2538 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3061 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2539 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2540 | |
3062 | |
2541 | /* monitor some parent directory for speedup hints */ |
3063 | /* if path is not there, monitor some parent directory for speedup hints */ |
2542 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3064 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2543 | /* but an efficiency issue only */ |
3065 | /* but an efficiency issue only */ |
2544 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3066 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2545 | { |
3067 | { |
2546 | char path [4096]; |
3068 | char path [4096]; |
… | |
… | |
2556 | if (!pend || pend == path) |
3078 | if (!pend || pend == path) |
2557 | break; |
3079 | break; |
2558 | |
3080 | |
2559 | *pend = 0; |
3081 | *pend = 0; |
2560 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3082 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2561 | } |
3083 | } |
2562 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3084 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2563 | } |
3085 | } |
2564 | } |
3086 | } |
2565 | |
3087 | |
2566 | if (w->wd >= 0) |
3088 | if (w->wd >= 0) |
2567 | { |
|
|
2568 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3089 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2569 | |
3090 | |
2570 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3091 | /* now re-arm timer, if required */ |
2571 | /* unless the filesystem it known to be local, we therefore still poll */ |
3092 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2572 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2573 | struct statfs sfs; |
|
|
2574 | |
|
|
2575 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2576 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2577 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2578 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2579 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2580 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2581 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2582 | return; |
|
|
2583 | |
|
|
2584 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2585 | ev_timer_again (EV_A_ &w->timer); |
3093 | ev_timer_again (EV_A_ &w->timer); |
2586 | } |
3094 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2587 | } |
3095 | } |
2588 | |
3096 | |
2589 | static void noinline |
3097 | static void noinline |
2590 | infy_del (EV_P_ ev_stat *w) |
3098 | infy_del (EV_P_ ev_stat *w) |
2591 | { |
3099 | { |
… | |
… | |
2594 | |
3102 | |
2595 | if (wd < 0) |
3103 | if (wd < 0) |
2596 | return; |
3104 | return; |
2597 | |
3105 | |
2598 | w->wd = -2; |
3106 | w->wd = -2; |
2599 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3107 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2600 | wlist_del (&fs_hash [slot].head, (WL)w); |
3108 | wlist_del (&fs_hash [slot].head, (WL)w); |
2601 | |
3109 | |
2602 | /* remove this watcher, if others are watching it, they will rearm */ |
3110 | /* remove this watcher, if others are watching it, they will rearm */ |
2603 | inotify_rm_watch (fs_fd, wd); |
3111 | inotify_rm_watch (fs_fd, wd); |
2604 | } |
3112 | } |
… | |
… | |
2606 | static void noinline |
3114 | static void noinline |
2607 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3115 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2608 | { |
3116 | { |
2609 | if (slot < 0) |
3117 | if (slot < 0) |
2610 | /* overflow, need to check for all hash slots */ |
3118 | /* overflow, need to check for all hash slots */ |
2611 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3119 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2612 | infy_wd (EV_A_ slot, wd, ev); |
3120 | infy_wd (EV_A_ slot, wd, ev); |
2613 | else |
3121 | else |
2614 | { |
3122 | { |
2615 | WL w_; |
3123 | WL w_; |
2616 | |
3124 | |
2617 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3125 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2618 | { |
3126 | { |
2619 | ev_stat *w = (ev_stat *)w_; |
3127 | ev_stat *w = (ev_stat *)w_; |
2620 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3128 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2621 | |
3129 | |
2622 | if (w->wd == wd || wd == -1) |
3130 | if (w->wd == wd || wd == -1) |
2623 | { |
3131 | { |
2624 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3132 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2625 | { |
3133 | { |
2626 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3134 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2627 | w->wd = -1; |
3135 | w->wd = -1; |
2628 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3136 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2629 | } |
3137 | } |
2630 | |
3138 | |
2631 | stat_timer_cb (EV_A_ &w->timer, 0); |
3139 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2636 | |
3144 | |
2637 | static void |
3145 | static void |
2638 | infy_cb (EV_P_ ev_io *w, int revents) |
3146 | infy_cb (EV_P_ ev_io *w, int revents) |
2639 | { |
3147 | { |
2640 | char buf [EV_INOTIFY_BUFSIZE]; |
3148 | char buf [EV_INOTIFY_BUFSIZE]; |
2641 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2642 | int ofs; |
3149 | int ofs; |
2643 | int len = read (fs_fd, buf, sizeof (buf)); |
3150 | int len = read (fs_fd, buf, sizeof (buf)); |
2644 | |
3151 | |
2645 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3152 | for (ofs = 0; ofs < len; ) |
|
|
3153 | { |
|
|
3154 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2646 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3155 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3156 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3157 | } |
2647 | } |
3158 | } |
2648 | |
3159 | |
2649 | inline_size void |
3160 | inline_size void |
2650 | check_2625 (EV_P) |
3161 | ev_check_2625 (EV_P) |
2651 | { |
3162 | { |
2652 | /* kernels < 2.6.25 are borked |
3163 | /* kernels < 2.6.25 are borked |
2653 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3164 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2654 | */ |
3165 | */ |
2655 | struct utsname buf; |
3166 | if (ev_linux_version () < 0x020619) |
2656 | int major, minor, micro; |
|
|
2657 | |
|
|
2658 | if (uname (&buf)) |
|
|
2659 | return; |
3167 | return; |
2660 | |
3168 | |
2661 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2662 | return; |
|
|
2663 | |
|
|
2664 | if (major < 2 |
|
|
2665 | || (major == 2 && minor < 6) |
|
|
2666 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2667 | return; |
|
|
2668 | |
|
|
2669 | fs_2625 = 1; |
3169 | fs_2625 = 1; |
|
|
3170 | } |
|
|
3171 | |
|
|
3172 | inline_size int |
|
|
3173 | infy_newfd (void) |
|
|
3174 | { |
|
|
3175 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3176 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3177 | if (fd >= 0) |
|
|
3178 | return fd; |
|
|
3179 | #endif |
|
|
3180 | return inotify_init (); |
2670 | } |
3181 | } |
2671 | |
3182 | |
2672 | inline_size void |
3183 | inline_size void |
2673 | infy_init (EV_P) |
3184 | infy_init (EV_P) |
2674 | { |
3185 | { |
2675 | if (fs_fd != -2) |
3186 | if (fs_fd != -2) |
2676 | return; |
3187 | return; |
2677 | |
3188 | |
2678 | fs_fd = -1; |
3189 | fs_fd = -1; |
2679 | |
3190 | |
2680 | check_2625 (EV_A); |
3191 | ev_check_2625 (EV_A); |
2681 | |
3192 | |
2682 | fs_fd = inotify_init (); |
3193 | fs_fd = infy_newfd (); |
2683 | |
3194 | |
2684 | if (fs_fd >= 0) |
3195 | if (fs_fd >= 0) |
2685 | { |
3196 | { |
|
|
3197 | fd_intern (fs_fd); |
2686 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3198 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2687 | ev_set_priority (&fs_w, EV_MAXPRI); |
3199 | ev_set_priority (&fs_w, EV_MAXPRI); |
2688 | ev_io_start (EV_A_ &fs_w); |
3200 | ev_io_start (EV_A_ &fs_w); |
|
|
3201 | ev_unref (EV_A); |
2689 | } |
3202 | } |
2690 | } |
3203 | } |
2691 | |
3204 | |
2692 | inline_size void |
3205 | inline_size void |
2693 | infy_fork (EV_P) |
3206 | infy_fork (EV_P) |
… | |
… | |
2695 | int slot; |
3208 | int slot; |
2696 | |
3209 | |
2697 | if (fs_fd < 0) |
3210 | if (fs_fd < 0) |
2698 | return; |
3211 | return; |
2699 | |
3212 | |
|
|
3213 | ev_ref (EV_A); |
|
|
3214 | ev_io_stop (EV_A_ &fs_w); |
2700 | close (fs_fd); |
3215 | close (fs_fd); |
2701 | fs_fd = inotify_init (); |
3216 | fs_fd = infy_newfd (); |
2702 | |
3217 | |
|
|
3218 | if (fs_fd >= 0) |
|
|
3219 | { |
|
|
3220 | fd_intern (fs_fd); |
|
|
3221 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3222 | ev_io_start (EV_A_ &fs_w); |
|
|
3223 | ev_unref (EV_A); |
|
|
3224 | } |
|
|
3225 | |
2703 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3226 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2704 | { |
3227 | { |
2705 | WL w_ = fs_hash [slot].head; |
3228 | WL w_ = fs_hash [slot].head; |
2706 | fs_hash [slot].head = 0; |
3229 | fs_hash [slot].head = 0; |
2707 | |
3230 | |
2708 | while (w_) |
3231 | while (w_) |
… | |
… | |
2713 | w->wd = -1; |
3236 | w->wd = -1; |
2714 | |
3237 | |
2715 | if (fs_fd >= 0) |
3238 | if (fs_fd >= 0) |
2716 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3239 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2717 | else |
3240 | else |
|
|
3241 | { |
|
|
3242 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3243 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2718 | ev_timer_again (EV_A_ &w->timer); |
3244 | ev_timer_again (EV_A_ &w->timer); |
|
|
3245 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3246 | } |
2719 | } |
3247 | } |
2720 | } |
3248 | } |
2721 | } |
3249 | } |
2722 | |
3250 | |
2723 | #endif |
3251 | #endif |
… | |
… | |
2740 | static void noinline |
3268 | static void noinline |
2741 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3269 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2742 | { |
3270 | { |
2743 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3271 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2744 | |
3272 | |
2745 | /* we copy this here each the time so that */ |
3273 | ev_statdata prev = w->attr; |
2746 | /* prev has the old value when the callback gets invoked */ |
|
|
2747 | w->prev = w->attr; |
|
|
2748 | ev_stat_stat (EV_A_ w); |
3274 | ev_stat_stat (EV_A_ w); |
2749 | |
3275 | |
2750 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3276 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2751 | if ( |
3277 | if ( |
2752 | w->prev.st_dev != w->attr.st_dev |
3278 | prev.st_dev != w->attr.st_dev |
2753 | || w->prev.st_ino != w->attr.st_ino |
3279 | || prev.st_ino != w->attr.st_ino |
2754 | || w->prev.st_mode != w->attr.st_mode |
3280 | || prev.st_mode != w->attr.st_mode |
2755 | || w->prev.st_nlink != w->attr.st_nlink |
3281 | || prev.st_nlink != w->attr.st_nlink |
2756 | || w->prev.st_uid != w->attr.st_uid |
3282 | || prev.st_uid != w->attr.st_uid |
2757 | || w->prev.st_gid != w->attr.st_gid |
3283 | || prev.st_gid != w->attr.st_gid |
2758 | || w->prev.st_rdev != w->attr.st_rdev |
3284 | || prev.st_rdev != w->attr.st_rdev |
2759 | || w->prev.st_size != w->attr.st_size |
3285 | || prev.st_size != w->attr.st_size |
2760 | || w->prev.st_atime != w->attr.st_atime |
3286 | || prev.st_atime != w->attr.st_atime |
2761 | || w->prev.st_mtime != w->attr.st_mtime |
3287 | || prev.st_mtime != w->attr.st_mtime |
2762 | || w->prev.st_ctime != w->attr.st_ctime |
3288 | || prev.st_ctime != w->attr.st_ctime |
2763 | ) { |
3289 | ) { |
|
|
3290 | /* we only update w->prev on actual differences */ |
|
|
3291 | /* in case we test more often than invoke the callback, */ |
|
|
3292 | /* to ensure that prev is always different to attr */ |
|
|
3293 | w->prev = prev; |
|
|
3294 | |
2764 | #if EV_USE_INOTIFY |
3295 | #if EV_USE_INOTIFY |
2765 | if (fs_fd >= 0) |
3296 | if (fs_fd >= 0) |
2766 | { |
3297 | { |
2767 | infy_del (EV_A_ w); |
3298 | infy_del (EV_A_ w); |
2768 | infy_add (EV_A_ w); |
3299 | infy_add (EV_A_ w); |
… | |
… | |
2793 | |
3324 | |
2794 | if (fs_fd >= 0) |
3325 | if (fs_fd >= 0) |
2795 | infy_add (EV_A_ w); |
3326 | infy_add (EV_A_ w); |
2796 | else |
3327 | else |
2797 | #endif |
3328 | #endif |
|
|
3329 | { |
2798 | ev_timer_again (EV_A_ &w->timer); |
3330 | ev_timer_again (EV_A_ &w->timer); |
|
|
3331 | ev_unref (EV_A); |
|
|
3332 | } |
2799 | |
3333 | |
2800 | ev_start (EV_A_ (W)w, 1); |
3334 | ev_start (EV_A_ (W)w, 1); |
2801 | |
3335 | |
2802 | EV_FREQUENT_CHECK; |
3336 | EV_FREQUENT_CHECK; |
2803 | } |
3337 | } |
… | |
… | |
2812 | EV_FREQUENT_CHECK; |
3346 | EV_FREQUENT_CHECK; |
2813 | |
3347 | |
2814 | #if EV_USE_INOTIFY |
3348 | #if EV_USE_INOTIFY |
2815 | infy_del (EV_A_ w); |
3349 | infy_del (EV_A_ w); |
2816 | #endif |
3350 | #endif |
|
|
3351 | |
|
|
3352 | if (ev_is_active (&w->timer)) |
|
|
3353 | { |
|
|
3354 | ev_ref (EV_A); |
2817 | ev_timer_stop (EV_A_ &w->timer); |
3355 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3356 | } |
2818 | |
3357 | |
2819 | ev_stop (EV_A_ (W)w); |
3358 | ev_stop (EV_A_ (W)w); |
2820 | |
3359 | |
2821 | EV_FREQUENT_CHECK; |
3360 | EV_FREQUENT_CHECK; |
2822 | } |
3361 | } |
… | |
… | |
2867 | |
3406 | |
2868 | EV_FREQUENT_CHECK; |
3407 | EV_FREQUENT_CHECK; |
2869 | } |
3408 | } |
2870 | #endif |
3409 | #endif |
2871 | |
3410 | |
|
|
3411 | #if EV_PREPARE_ENABLE |
2872 | void |
3412 | void |
2873 | ev_prepare_start (EV_P_ ev_prepare *w) |
3413 | ev_prepare_start (EV_P_ ev_prepare *w) |
2874 | { |
3414 | { |
2875 | if (expect_false (ev_is_active (w))) |
3415 | if (expect_false (ev_is_active (w))) |
2876 | return; |
3416 | return; |
… | |
… | |
2902 | |
3442 | |
2903 | ev_stop (EV_A_ (W)w); |
3443 | ev_stop (EV_A_ (W)w); |
2904 | |
3444 | |
2905 | EV_FREQUENT_CHECK; |
3445 | EV_FREQUENT_CHECK; |
2906 | } |
3446 | } |
|
|
3447 | #endif |
2907 | |
3448 | |
|
|
3449 | #if EV_CHECK_ENABLE |
2908 | void |
3450 | void |
2909 | ev_check_start (EV_P_ ev_check *w) |
3451 | ev_check_start (EV_P_ ev_check *w) |
2910 | { |
3452 | { |
2911 | if (expect_false (ev_is_active (w))) |
3453 | if (expect_false (ev_is_active (w))) |
2912 | return; |
3454 | return; |
… | |
… | |
2938 | |
3480 | |
2939 | ev_stop (EV_A_ (W)w); |
3481 | ev_stop (EV_A_ (W)w); |
2940 | |
3482 | |
2941 | EV_FREQUENT_CHECK; |
3483 | EV_FREQUENT_CHECK; |
2942 | } |
3484 | } |
|
|
3485 | #endif |
2943 | |
3486 | |
2944 | #if EV_EMBED_ENABLE |
3487 | #if EV_EMBED_ENABLE |
2945 | void noinline |
3488 | void noinline |
2946 | ev_embed_sweep (EV_P_ ev_embed *w) |
3489 | ev_embed_sweep (EV_P_ ev_embed *w) |
2947 | { |
3490 | { |
2948 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3491 | ev_run (w->other, EVRUN_NOWAIT); |
2949 | } |
3492 | } |
2950 | |
3493 | |
2951 | static void |
3494 | static void |
2952 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3495 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2953 | { |
3496 | { |
2954 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3497 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2955 | |
3498 | |
2956 | if (ev_cb (w)) |
3499 | if (ev_cb (w)) |
2957 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3500 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2958 | else |
3501 | else |
2959 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3502 | ev_run (w->other, EVRUN_NOWAIT); |
2960 | } |
3503 | } |
2961 | |
3504 | |
2962 | static void |
3505 | static void |
2963 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3506 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2964 | { |
3507 | { |
2965 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3508 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2966 | |
3509 | |
2967 | { |
3510 | { |
2968 | struct ev_loop *loop = w->other; |
3511 | EV_P = w->other; |
2969 | |
3512 | |
2970 | while (fdchangecnt) |
3513 | while (fdchangecnt) |
2971 | { |
3514 | { |
2972 | fd_reify (EV_A); |
3515 | fd_reify (EV_A); |
2973 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3516 | ev_run (EV_A_ EVRUN_NOWAIT); |
2974 | } |
3517 | } |
2975 | } |
3518 | } |
2976 | } |
3519 | } |
2977 | |
3520 | |
2978 | static void |
3521 | static void |
… | |
… | |
2981 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3524 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2982 | |
3525 | |
2983 | ev_embed_stop (EV_A_ w); |
3526 | ev_embed_stop (EV_A_ w); |
2984 | |
3527 | |
2985 | { |
3528 | { |
2986 | struct ev_loop *loop = w->other; |
3529 | EV_P = w->other; |
2987 | |
3530 | |
2988 | ev_loop_fork (EV_A); |
3531 | ev_loop_fork (EV_A); |
2989 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3532 | ev_run (EV_A_ EVRUN_NOWAIT); |
2990 | } |
3533 | } |
2991 | |
3534 | |
2992 | ev_embed_start (EV_A_ w); |
3535 | ev_embed_start (EV_A_ w); |
2993 | } |
3536 | } |
2994 | |
3537 | |
… | |
… | |
3005 | { |
3548 | { |
3006 | if (expect_false (ev_is_active (w))) |
3549 | if (expect_false (ev_is_active (w))) |
3007 | return; |
3550 | return; |
3008 | |
3551 | |
3009 | { |
3552 | { |
3010 | struct ev_loop *loop = w->other; |
3553 | EV_P = w->other; |
3011 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3554 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3012 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3555 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3013 | } |
3556 | } |
3014 | |
3557 | |
3015 | EV_FREQUENT_CHECK; |
3558 | EV_FREQUENT_CHECK; |
… | |
… | |
3042 | |
3585 | |
3043 | ev_io_stop (EV_A_ &w->io); |
3586 | ev_io_stop (EV_A_ &w->io); |
3044 | ev_prepare_stop (EV_A_ &w->prepare); |
3587 | ev_prepare_stop (EV_A_ &w->prepare); |
3045 | ev_fork_stop (EV_A_ &w->fork); |
3588 | ev_fork_stop (EV_A_ &w->fork); |
3046 | |
3589 | |
|
|
3590 | ev_stop (EV_A_ (W)w); |
|
|
3591 | |
3047 | EV_FREQUENT_CHECK; |
3592 | EV_FREQUENT_CHECK; |
3048 | } |
3593 | } |
3049 | #endif |
3594 | #endif |
3050 | |
3595 | |
3051 | #if EV_FORK_ENABLE |
3596 | #if EV_FORK_ENABLE |
… | |
… | |
3084 | |
3629 | |
3085 | EV_FREQUENT_CHECK; |
3630 | EV_FREQUENT_CHECK; |
3086 | } |
3631 | } |
3087 | #endif |
3632 | #endif |
3088 | |
3633 | |
3089 | #if EV_ASYNC_ENABLE |
3634 | #if EV_CLEANUP_ENABLE |
3090 | void |
3635 | void |
3091 | ev_async_start (EV_P_ ev_async *w) |
3636 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3092 | { |
3637 | { |
3093 | if (expect_false (ev_is_active (w))) |
3638 | if (expect_false (ev_is_active (w))) |
3094 | return; |
3639 | return; |
|
|
3640 | |
|
|
3641 | EV_FREQUENT_CHECK; |
|
|
3642 | |
|
|
3643 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3644 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3645 | cleanups [cleanupcnt - 1] = w; |
|
|
3646 | |
|
|
3647 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3648 | ev_unref (EV_A); |
|
|
3649 | EV_FREQUENT_CHECK; |
|
|
3650 | } |
|
|
3651 | |
|
|
3652 | void |
|
|
3653 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3654 | { |
|
|
3655 | clear_pending (EV_A_ (W)w); |
|
|
3656 | if (expect_false (!ev_is_active (w))) |
|
|
3657 | return; |
|
|
3658 | |
|
|
3659 | EV_FREQUENT_CHECK; |
|
|
3660 | ev_ref (EV_A); |
|
|
3661 | |
|
|
3662 | { |
|
|
3663 | int active = ev_active (w); |
|
|
3664 | |
|
|
3665 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3666 | ev_active (cleanups [active - 1]) = active; |
|
|
3667 | } |
|
|
3668 | |
|
|
3669 | ev_stop (EV_A_ (W)w); |
|
|
3670 | |
|
|
3671 | EV_FREQUENT_CHECK; |
|
|
3672 | } |
|
|
3673 | #endif |
|
|
3674 | |
|
|
3675 | #if EV_ASYNC_ENABLE |
|
|
3676 | void |
|
|
3677 | ev_async_start (EV_P_ ev_async *w) |
|
|
3678 | { |
|
|
3679 | if (expect_false (ev_is_active (w))) |
|
|
3680 | return; |
|
|
3681 | |
|
|
3682 | w->sent = 0; |
3095 | |
3683 | |
3096 | evpipe_init (EV_A); |
3684 | evpipe_init (EV_A); |
3097 | |
3685 | |
3098 | EV_FREQUENT_CHECK; |
3686 | EV_FREQUENT_CHECK; |
3099 | |
3687 | |
… | |
… | |
3127 | |
3715 | |
3128 | void |
3716 | void |
3129 | ev_async_send (EV_P_ ev_async *w) |
3717 | ev_async_send (EV_P_ ev_async *w) |
3130 | { |
3718 | { |
3131 | w->sent = 1; |
3719 | w->sent = 1; |
3132 | evpipe_write (EV_A_ &gotasync); |
3720 | evpipe_write (EV_A_ &async_pending); |
3133 | } |
3721 | } |
3134 | #endif |
3722 | #endif |
3135 | |
3723 | |
3136 | /*****************************************************************************/ |
3724 | /*****************************************************************************/ |
3137 | |
3725 | |
… | |
… | |
3177 | { |
3765 | { |
3178 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3766 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3179 | |
3767 | |
3180 | if (expect_false (!once)) |
3768 | if (expect_false (!once)) |
3181 | { |
3769 | { |
3182 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3770 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3183 | return; |
3771 | return; |
3184 | } |
3772 | } |
3185 | |
3773 | |
3186 | once->cb = cb; |
3774 | once->cb = cb; |
3187 | once->arg = arg; |
3775 | once->arg = arg; |
… | |
… | |
3201 | } |
3789 | } |
3202 | } |
3790 | } |
3203 | |
3791 | |
3204 | /*****************************************************************************/ |
3792 | /*****************************************************************************/ |
3205 | |
3793 | |
3206 | #if 0 |
3794 | #if EV_WALK_ENABLE |
3207 | void |
3795 | void |
3208 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3796 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3209 | { |
3797 | { |
3210 | int i, j; |
3798 | int i, j; |
3211 | ev_watcher_list *wl, *wn; |
3799 | ev_watcher_list *wl, *wn; |
… | |
… | |
3227 | #if EV_USE_INOTIFY |
3815 | #if EV_USE_INOTIFY |
3228 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3816 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3229 | ; |
3817 | ; |
3230 | else |
3818 | else |
3231 | #endif |
3819 | #endif |
3232 | if ((ev_io *)wl != &pipeev) |
3820 | if ((ev_io *)wl != &pipe_w) |
3233 | if (types & EV_IO) |
3821 | if (types & EV_IO) |
3234 | cb (EV_A_ EV_IO, wl); |
3822 | cb (EV_A_ EV_IO, wl); |
3235 | |
3823 | |
3236 | wl = wn; |
3824 | wl = wn; |
3237 | } |
3825 | } |
… | |
… | |
3274 | if (types & EV_ASYNC) |
3862 | if (types & EV_ASYNC) |
3275 | for (i = asynccnt; i--; ) |
3863 | for (i = asynccnt; i--; ) |
3276 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3864 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3277 | #endif |
3865 | #endif |
3278 | |
3866 | |
|
|
3867 | #if EV_PREPARE_ENABLE |
3279 | if (types & EV_PREPARE) |
3868 | if (types & EV_PREPARE) |
3280 | for (i = preparecnt; i--; ) |
3869 | for (i = preparecnt; i--; ) |
3281 | #if EV_EMBED_ENABLE |
3870 | # if EV_EMBED_ENABLE |
3282 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3871 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3283 | #endif |
3872 | # endif |
3284 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3873 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3874 | #endif |
3285 | |
3875 | |
|
|
3876 | #if EV_CHECK_ENABLE |
3286 | if (types & EV_CHECK) |
3877 | if (types & EV_CHECK) |
3287 | for (i = checkcnt; i--; ) |
3878 | for (i = checkcnt; i--; ) |
3288 | cb (EV_A_ EV_CHECK, checks [i]); |
3879 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3880 | #endif |
3289 | |
3881 | |
|
|
3882 | #if EV_SIGNAL_ENABLE |
3290 | if (types & EV_SIGNAL) |
3883 | if (types & EV_SIGNAL) |
3291 | for (i = 0; i < signalmax; ++i) |
3884 | for (i = 0; i < EV_NSIG - 1; ++i) |
3292 | for (wl = signals [i].head; wl; ) |
3885 | for (wl = signals [i].head; wl; ) |
3293 | { |
3886 | { |
3294 | wn = wl->next; |
3887 | wn = wl->next; |
3295 | cb (EV_A_ EV_SIGNAL, wl); |
3888 | cb (EV_A_ EV_SIGNAL, wl); |
3296 | wl = wn; |
3889 | wl = wn; |
3297 | } |
3890 | } |
|
|
3891 | #endif |
3298 | |
3892 | |
|
|
3893 | #if EV_CHILD_ENABLE |
3299 | if (types & EV_CHILD) |
3894 | if (types & EV_CHILD) |
3300 | for (i = EV_PID_HASHSIZE; i--; ) |
3895 | for (i = (EV_PID_HASHSIZE); i--; ) |
3301 | for (wl = childs [i]; wl; ) |
3896 | for (wl = childs [i]; wl; ) |
3302 | { |
3897 | { |
3303 | wn = wl->next; |
3898 | wn = wl->next; |
3304 | cb (EV_A_ EV_CHILD, wl); |
3899 | cb (EV_A_ EV_CHILD, wl); |
3305 | wl = wn; |
3900 | wl = wn; |
3306 | } |
3901 | } |
|
|
3902 | #endif |
3307 | /* EV_STAT 0x00001000 /* stat data changed */ |
3903 | /* EV_STAT 0x00001000 /* stat data changed */ |
3308 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3904 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3309 | } |
3905 | } |
3310 | #endif |
3906 | #endif |
3311 | |
3907 | |
3312 | #if EV_MULTIPLICITY |
3908 | #if EV_MULTIPLICITY |
3313 | #include "ev_wrap.h" |
3909 | #include "ev_wrap.h" |
3314 | #endif |
3910 | #endif |
3315 | |
3911 | |
3316 | #ifdef __cplusplus |
3912 | EV_CPP(}) |
3317 | } |
|
|
3318 | #endif |
|
|
3319 | |
3913 | |