1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
|
|
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
55 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
63 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
64 | # endif |
66 | # endif |
65 | |
67 | |
66 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
67 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
79 | # endif |
81 | # endif |
80 | # endif |
82 | # endif |
81 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
85 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
88 | # endif |
100 | # endif |
89 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
105 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
109 | # endif |
105 | |
110 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
109 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
112 | # endif |
118 | # endif |
113 | |
119 | |
114 | # ifndef EV_USE_KQUEUE |
|
|
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
121 | # ifndef EV_USE_KQUEUE |
117 | # else |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
120 | # endif |
127 | # endif |
121 | |
128 | |
122 | # ifndef EV_USE_PORT |
|
|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
125 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
128 | # endif |
136 | # endif |
129 | |
137 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
135 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
136 | # endif |
145 | # endif |
137 | |
146 | |
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
140 | # define EV_USE_SIGNALFD 1 |
148 | # ifndef EV_USE_SIGNALFD |
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
143 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
144 | # endif |
154 | # endif |
145 | |
155 | |
|
|
156 | # if HAVE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
157 | # ifndef EV_USE_EVENTFD |
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD 1 |
158 | # define EV_USE_EVENTFD EV_FEATURE_OS |
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_EVENTFD |
|
|
162 | # define EV_USE_EVENTFD 0 |
152 | # endif |
163 | # endif |
153 | |
164 | |
154 | #endif |
165 | #endif |
155 | |
166 | |
156 | #include <math.h> |
|
|
157 | #include <stdlib.h> |
167 | #include <stdlib.h> |
158 | #include <string.h> |
168 | #include <string.h> |
159 | #include <fcntl.h> |
169 | #include <fcntl.h> |
160 | #include <stddef.h> |
170 | #include <stddef.h> |
161 | |
171 | |
… | |
… | |
171 | |
181 | |
172 | #ifdef EV_H |
182 | #ifdef EV_H |
173 | # include EV_H |
183 | # include EV_H |
174 | #else |
184 | #else |
175 | # include "ev.h" |
185 | # include "ev.h" |
|
|
186 | #endif |
|
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187 | |
|
|
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
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192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
176 | #endif |
197 | #endif |
177 | |
198 | |
178 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
179 | # include <sys/time.h> |
200 | # include <sys/time.h> |
180 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
181 | # include <unistd.h> |
202 | # include <unistd.h> |
182 | #else |
203 | #else |
183 | # include <io.h> |
204 | # include <io.h> |
184 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
185 | # include <windows.h> |
207 | # include <windows.h> |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
188 | # endif |
210 | # endif |
189 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
190 | #endif |
212 | #endif |
191 | |
213 | |
|
|
214 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
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215 | * a limit of 1024 into their select. Where people have brains, |
|
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216 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
217 | * ordered to have a vacuum, or they do anything for money. |
|
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218 | * This might help. Or not. |
|
|
219 | */ |
|
|
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
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221 | |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
193 | |
223 | |
194 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
195 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
196 | /* use what's provided */ |
226 | /* use what's provided */ |
197 | #elif defined (NSIG) |
227 | #elif defined NSIG |
198 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
199 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
200 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
201 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
202 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
203 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
204 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
205 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
206 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
207 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
208 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
209 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
210 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
211 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
213 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
215 | #else |
245 | #else |
216 | # error "unable to find value for NSIG, please report" |
246 | # error "unable to find value for NSIG, please report" |
217 | /* to make it compile regardless, just remove the above line, */ |
247 | /* to make it compile regardless, just remove the above line, */ |
218 | /* but consider reporting it, too! :) */ |
248 | /* but consider reporting it, too! :) */ |
219 | # define EV_NSIG 65 |
249 | # define EV_NSIG 65 |
220 | #endif |
250 | #endif |
221 | |
251 | |
|
|
252 | #ifndef EV_USE_FLOOR |
|
|
253 | # define EV_USE_FLOOR 0 |
|
|
254 | #endif |
|
|
255 | |
222 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
223 | # if __linux && __GLIBC__ >= 2 |
257 | # if __linux && __GLIBC__ >= 2 |
224 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
225 | # else |
259 | # else |
226 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
227 | # endif |
261 | # endif |
228 | #endif |
262 | #endif |
229 | |
263 | |
230 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
232 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
233 | # else |
267 | # else |
234 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
235 | # endif |
269 | # endif |
236 | #endif |
270 | #endif |
… | |
… | |
326 | #endif |
360 | #endif |
327 | |
361 | |
328 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
329 | /* which makes programs even slower. might work on other unices, too. */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
330 | #if EV_USE_CLOCK_SYSCALL |
364 | #if EV_USE_CLOCK_SYSCALL |
331 | # include <syscall.h> |
365 | # include <sys/syscall.h> |
332 | # ifdef SYS_clock_gettime |
366 | # ifdef SYS_clock_gettime |
333 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
334 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
335 | # define EV_USE_MONOTONIC 1 |
369 | # define EV_USE_MONOTONIC 1 |
336 | # else |
370 | # else |
… | |
… | |
361 | # undef EV_USE_INOTIFY |
395 | # undef EV_USE_INOTIFY |
362 | # define EV_USE_INOTIFY 0 |
396 | # define EV_USE_INOTIFY 0 |
363 | #endif |
397 | #endif |
364 | |
398 | |
365 | #if !EV_USE_NANOSLEEP |
399 | #if !EV_USE_NANOSLEEP |
366 | # ifndef _WIN32 |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
401 | # if !defined _WIN32 && !defined __hpux |
367 | # include <sys/select.h> |
402 | # include <sys/select.h> |
368 | # endif |
403 | # endif |
369 | #endif |
404 | #endif |
370 | |
405 | |
371 | #if EV_USE_INOTIFY |
406 | #if EV_USE_INOTIFY |
372 | # include <sys/utsname.h> |
|
|
373 | # include <sys/statfs.h> |
407 | # include <sys/statfs.h> |
374 | # include <sys/inotify.h> |
408 | # include <sys/inotify.h> |
375 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
376 | # ifndef IN_DONT_FOLLOW |
410 | # ifndef IN_DONT_FOLLOW |
377 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
378 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
379 | # endif |
413 | # endif |
380 | #endif |
|
|
381 | |
|
|
382 | #if EV_SELECT_IS_WINSOCKET |
|
|
383 | # include <winsock.h> |
|
|
384 | #endif |
414 | #endif |
385 | |
415 | |
386 | #if EV_USE_EVENTFD |
416 | #if EV_USE_EVENTFD |
387 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
388 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
394 | # define EFD_CLOEXEC O_CLOEXEC |
424 | # define EFD_CLOEXEC O_CLOEXEC |
395 | # else |
425 | # else |
396 | # define EFD_CLOEXEC 02000000 |
426 | # define EFD_CLOEXEC 02000000 |
397 | # endif |
427 | # endif |
398 | # endif |
428 | # endif |
399 | # ifdef __cplusplus |
|
|
400 | extern "C" { |
|
|
401 | # endif |
|
|
402 | int (eventfd) (unsigned int initval, int flags); |
429 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
403 | # ifdef __cplusplus |
|
|
404 | } |
|
|
405 | # endif |
|
|
406 | #endif |
430 | #endif |
407 | |
431 | |
408 | #if EV_USE_SIGNALFD |
432 | #if EV_USE_SIGNALFD |
409 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
410 | # include <stdint.h> |
434 | # include <stdint.h> |
… | |
… | |
416 | # define SFD_CLOEXEC O_CLOEXEC |
440 | # define SFD_CLOEXEC O_CLOEXEC |
417 | # else |
441 | # else |
418 | # define SFD_CLOEXEC 02000000 |
442 | # define SFD_CLOEXEC 02000000 |
419 | # endif |
443 | # endif |
420 | # endif |
444 | # endif |
421 | # ifdef __cplusplus |
|
|
422 | extern "C" { |
|
|
423 | # endif |
|
|
424 | int signalfd (int fd, const sigset_t *mask, int flags); |
445 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
425 | |
446 | |
426 | struct signalfd_siginfo |
447 | struct signalfd_siginfo |
427 | { |
448 | { |
428 | uint32_t ssi_signo; |
449 | uint32_t ssi_signo; |
429 | char pad[128 - sizeof (uint32_t)]; |
450 | char pad[128 - sizeof (uint32_t)]; |
430 | }; |
451 | }; |
431 | # ifdef __cplusplus |
|
|
432 | } |
|
|
433 | # endif |
452 | #endif |
434 | #endif |
|
|
435 | |
|
|
436 | |
453 | |
437 | /**/ |
454 | /**/ |
438 | |
455 | |
439 | #if EV_VERIFY >= 3 |
456 | #if EV_VERIFY >= 3 |
440 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
457 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
441 | #else |
458 | #else |
442 | # define EV_FREQUENT_CHECK do { } while (0) |
459 | # define EV_FREQUENT_CHECK do { } while (0) |
443 | #endif |
460 | #endif |
444 | |
461 | |
445 | /* |
462 | /* |
446 | * This is used to avoid floating point rounding problems. |
463 | * This is used to work around floating point rounding problems. |
447 | * It is added to ev_rt_now when scheduling periodics |
|
|
448 | * to ensure progress, time-wise, even when rounding |
|
|
449 | * errors are against us. |
|
|
450 | * This value is good at least till the year 4000. |
464 | * This value is good at least till the year 4000. |
451 | * Better solutions welcome. |
|
|
452 | */ |
465 | */ |
453 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
466 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
467 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
454 | |
468 | |
455 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
469 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | |
471 | |
|
|
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
474 | |
|
|
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
476 | /* ECB.H BEGIN */ |
|
|
477 | /* |
|
|
478 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
479 | * |
|
|
480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
481 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
482 | * All rights reserved. |
|
|
483 | * |
|
|
484 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
485 | * tion, are permitted provided that the following conditions are met: |
|
|
486 | * |
|
|
487 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
488 | * this list of conditions and the following disclaimer. |
|
|
489 | * |
|
|
490 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
491 | * notice, this list of conditions and the following disclaimer in the |
|
|
492 | * documentation and/or other materials provided with the distribution. |
|
|
493 | * |
|
|
494 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
495 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
496 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
497 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
498 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
504 | */ |
|
|
505 | |
|
|
506 | #ifndef ECB_H |
|
|
507 | #define ECB_H |
|
|
508 | |
|
|
509 | /* 16 bits major, 16 bits minor */ |
|
|
510 | #define ECB_VERSION 0x00010001 |
|
|
511 | |
|
|
512 | #ifdef _WIN32 |
|
|
513 | typedef signed char int8_t; |
|
|
514 | typedef unsigned char uint8_t; |
|
|
515 | typedef signed short int16_t; |
|
|
516 | typedef unsigned short uint16_t; |
|
|
517 | typedef signed int int32_t; |
|
|
518 | typedef unsigned int uint32_t; |
458 | #if __GNUC__ >= 4 |
519 | #if __GNUC__ |
459 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
520 | typedef signed long long int64_t; |
460 | # define noinline __attribute__ ((noinline)) |
521 | typedef unsigned long long uint64_t; |
|
|
522 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
523 | typedef signed __int64 int64_t; |
|
|
524 | typedef unsigned __int64 uint64_t; |
|
|
525 | #endif |
|
|
526 | #ifdef _WIN64 |
|
|
527 | #define ECB_PTRSIZE 8 |
|
|
528 | typedef uint64_t uintptr_t; |
|
|
529 | typedef int64_t intptr_t; |
|
|
530 | #else |
|
|
531 | #define ECB_PTRSIZE 4 |
|
|
532 | typedef uint32_t uintptr_t; |
|
|
533 | typedef int32_t intptr_t; |
|
|
534 | #endif |
|
|
535 | typedef intptr_t ptrdiff_t; |
461 | #else |
536 | #else |
462 | # define expect(expr,value) (expr) |
537 | #include <inttypes.h> |
463 | # define noinline |
538 | #if UINTMAX_MAX > 0xffffffffU |
464 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
539 | #define ECB_PTRSIZE 8 |
465 | # define inline |
540 | #else |
|
|
541 | #define ECB_PTRSIZE 4 |
|
|
542 | #endif |
466 | # endif |
543 | #endif |
|
|
544 | |
|
|
545 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
546 | * what their idiot authors think are the "more important" extensions, |
|
|
547 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
548 | * or so. |
|
|
549 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
550 | * an issue with that they should have done it right in the first place. |
|
|
551 | */ |
|
|
552 | #ifndef ECB_GCC_VERSION |
|
|
553 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
554 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
555 | #else |
|
|
556 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
467 | #endif |
557 | #endif |
|
|
558 | #endif |
468 | |
559 | |
|
|
560 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
561 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
562 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
563 | #define ECB_CPP (__cplusplus+0) |
|
|
564 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
565 | |
|
|
566 | /*****************************************************************************/ |
|
|
567 | |
|
|
568 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
569 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
570 | |
|
|
571 | #if ECB_NO_THREADS |
|
|
572 | #define ECB_NO_SMP 1 |
|
|
573 | #endif |
|
|
574 | |
|
|
575 | #if ECB_NO_SMP |
|
|
576 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
577 | #endif |
|
|
578 | |
|
|
579 | #ifndef ECB_MEMORY_FENCE |
|
|
580 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
581 | #if __i386 || __i386__ |
|
|
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
583 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
584 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
585 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
586 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
587 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
588 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
589 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
590 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
591 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
592 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
593 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
594 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
595 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
596 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
597 | #elif __sparc || __sparc__ |
|
|
598 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
599 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
600 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
601 | #elif defined __s390__ || defined __s390x__ |
|
|
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
603 | #elif defined __mips__ |
|
|
604 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
605 | #elif defined __alpha__ |
|
|
606 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
607 | #elif defined __hppa__ |
|
|
608 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
610 | #elif defined __ia64__ |
|
|
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
612 | #endif |
|
|
613 | #endif |
|
|
614 | #endif |
|
|
615 | |
|
|
616 | #ifndef ECB_MEMORY_FENCE |
|
|
617 | #if ECB_GCC_VERSION(4,7) |
|
|
618 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
619 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
620 | #elif defined __clang && __has_feature (cxx_atomic) |
|
|
621 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
622 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
623 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
624 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
625 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
626 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
627 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
628 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
629 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
630 | #elif defined _WIN32 |
|
|
631 | #include <WinNT.h> |
|
|
632 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
633 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
634 | #include <mbarrier.h> |
|
|
635 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
636 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
637 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
638 | #elif __xlC__ |
|
|
639 | #define ECB_MEMORY_FENCE __sync () |
|
|
640 | #endif |
|
|
641 | #endif |
|
|
642 | |
|
|
643 | #ifndef ECB_MEMORY_FENCE |
|
|
644 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
645 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
646 | /* not just C11 atomics and atomic accesses */ |
|
|
647 | #include <stdatomic.h> |
|
|
648 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
649 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
650 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
651 | /* for most usages, or gcc and clang have a bug */ |
|
|
652 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
653 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
654 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
655 | #endif |
|
|
656 | #endif |
|
|
657 | |
|
|
658 | #ifndef ECB_MEMORY_FENCE |
|
|
659 | #if !ECB_AVOID_PTHREADS |
|
|
660 | /* |
|
|
661 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
662 | * or failure to find pthread.h, then you should implement |
|
|
663 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
664 | * OR provide pthread.h and link against the posix thread library |
|
|
665 | * of your system. |
|
|
666 | */ |
|
|
667 | #include <pthread.h> |
|
|
668 | #define ECB_NEEDS_PTHREADS 1 |
|
|
669 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
670 | |
|
|
671 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
672 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
673 | #endif |
|
|
674 | #endif |
|
|
675 | |
|
|
676 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
677 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
678 | #endif |
|
|
679 | |
|
|
680 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
681 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | /*****************************************************************************/ |
|
|
685 | |
|
|
686 | #if __cplusplus |
|
|
687 | #define ecb_inline static inline |
|
|
688 | #elif ECB_GCC_VERSION(2,5) |
|
|
689 | #define ecb_inline static __inline__ |
|
|
690 | #elif ECB_C99 |
|
|
691 | #define ecb_inline static inline |
|
|
692 | #else |
|
|
693 | #define ecb_inline static |
|
|
694 | #endif |
|
|
695 | |
|
|
696 | #if ECB_GCC_VERSION(3,3) |
|
|
697 | #define ecb_restrict __restrict__ |
|
|
698 | #elif ECB_C99 |
|
|
699 | #define ecb_restrict restrict |
|
|
700 | #else |
|
|
701 | #define ecb_restrict |
|
|
702 | #endif |
|
|
703 | |
|
|
704 | typedef int ecb_bool; |
|
|
705 | |
|
|
706 | #define ECB_CONCAT_(a, b) a ## b |
|
|
707 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
708 | #define ECB_STRINGIFY_(a) # a |
|
|
709 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
710 | |
|
|
711 | #define ecb_function_ ecb_inline |
|
|
712 | |
|
|
713 | #if ECB_GCC_VERSION(3,1) |
|
|
714 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
715 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
716 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
717 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
718 | #else |
|
|
719 | #define ecb_attribute(attrlist) |
|
|
720 | #define ecb_is_constant(expr) 0 |
|
|
721 | #define ecb_expect(expr,value) (expr) |
|
|
722 | #define ecb_prefetch(addr,rw,locality) |
|
|
723 | #endif |
|
|
724 | |
|
|
725 | /* no emulation for ecb_decltype */ |
|
|
726 | #if ECB_GCC_VERSION(4,5) |
|
|
727 | #define ecb_decltype(x) __decltype(x) |
|
|
728 | #elif ECB_GCC_VERSION(3,0) |
|
|
729 | #define ecb_decltype(x) __typeof(x) |
|
|
730 | #endif |
|
|
731 | |
|
|
732 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
733 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
734 | #define ecb_const ecb_attribute ((__const__)) |
|
|
735 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
736 | |
|
|
737 | #if ECB_C11 |
|
|
738 | #define ecb_noreturn _Noreturn |
|
|
739 | #else |
|
|
740 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
741 | #endif |
|
|
742 | |
|
|
743 | #if ECB_GCC_VERSION(4,3) |
|
|
744 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
745 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
746 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
747 | #else |
|
|
748 | #define ecb_artificial |
|
|
749 | #define ecb_hot |
|
|
750 | #define ecb_cold |
|
|
751 | #endif |
|
|
752 | |
|
|
753 | /* put around conditional expressions if you are very sure that the */ |
|
|
754 | /* expression is mostly true or mostly false. note that these return */ |
|
|
755 | /* booleans, not the expression. */ |
469 | #define expect_false(expr) expect ((expr) != 0, 0) |
756 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
470 | #define expect_true(expr) expect ((expr) != 0, 1) |
757 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
758 | /* for compatibility to the rest of the world */ |
|
|
759 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
760 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
761 | |
|
|
762 | /* count trailing zero bits and count # of one bits */ |
|
|
763 | #if ECB_GCC_VERSION(3,4) |
|
|
764 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
765 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
766 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
767 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
768 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
769 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
770 | /* no popcountll */ |
|
|
771 | #else |
|
|
772 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
773 | ecb_function_ int |
|
|
774 | ecb_ctz32 (uint32_t x) |
|
|
775 | { |
|
|
776 | int r = 0; |
|
|
777 | |
|
|
778 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
779 | |
|
|
780 | #if ECB_branchless_on_i386 |
|
|
781 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
782 | r += !!(x & 0xcccccccc) << 1; |
|
|
783 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
784 | r += !!(x & 0xff00ff00) << 3; |
|
|
785 | r += !!(x & 0xffff0000) << 4; |
|
|
786 | #else |
|
|
787 | if (x & 0xaaaaaaaa) r += 1; |
|
|
788 | if (x & 0xcccccccc) r += 2; |
|
|
789 | if (x & 0xf0f0f0f0) r += 4; |
|
|
790 | if (x & 0xff00ff00) r += 8; |
|
|
791 | if (x & 0xffff0000) r += 16; |
|
|
792 | #endif |
|
|
793 | |
|
|
794 | return r; |
|
|
795 | } |
|
|
796 | |
|
|
797 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
798 | ecb_function_ int |
|
|
799 | ecb_ctz64 (uint64_t x) |
|
|
800 | { |
|
|
801 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
802 | return ecb_ctz32 (x >> shift) + shift; |
|
|
803 | } |
|
|
804 | |
|
|
805 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
806 | ecb_function_ int |
|
|
807 | ecb_popcount32 (uint32_t x) |
|
|
808 | { |
|
|
809 | x -= (x >> 1) & 0x55555555; |
|
|
810 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
811 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
812 | x *= 0x01010101; |
|
|
813 | |
|
|
814 | return x >> 24; |
|
|
815 | } |
|
|
816 | |
|
|
817 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
818 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
819 | { |
|
|
820 | int r = 0; |
|
|
821 | |
|
|
822 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
823 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
824 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
825 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
826 | if (x >> 1) { r += 1; } |
|
|
827 | |
|
|
828 | return r; |
|
|
829 | } |
|
|
830 | |
|
|
831 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
832 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
833 | { |
|
|
834 | int r = 0; |
|
|
835 | |
|
|
836 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
837 | |
|
|
838 | return r + ecb_ld32 (x); |
|
|
839 | } |
|
|
840 | #endif |
|
|
841 | |
|
|
842 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
843 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
844 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
845 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
846 | |
|
|
847 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
848 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
849 | { |
|
|
850 | return ( (x * 0x0802U & 0x22110U) |
|
|
851 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
852 | } |
|
|
853 | |
|
|
854 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
855 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
856 | { |
|
|
857 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
858 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
859 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
860 | x = ( x >> 8 ) | ( x << 8); |
|
|
861 | |
|
|
862 | return x; |
|
|
863 | } |
|
|
864 | |
|
|
865 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
866 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
867 | { |
|
|
868 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
869 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
870 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
871 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
872 | x = ( x >> 16 ) | ( x << 16); |
|
|
873 | |
|
|
874 | return x; |
|
|
875 | } |
|
|
876 | |
|
|
877 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
878 | /* so for this version we are lazy */ |
|
|
879 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
880 | ecb_function_ int |
|
|
881 | ecb_popcount64 (uint64_t x) |
|
|
882 | { |
|
|
883 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
884 | } |
|
|
885 | |
|
|
886 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
887 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
888 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
889 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
890 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
891 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
892 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
893 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
894 | |
|
|
895 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
896 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
897 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
898 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
899 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
900 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
901 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
902 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
903 | |
|
|
904 | #if ECB_GCC_VERSION(4,3) |
|
|
905 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
906 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
907 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
908 | #else |
|
|
909 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
910 | ecb_function_ uint16_t |
|
|
911 | ecb_bswap16 (uint16_t x) |
|
|
912 | { |
|
|
913 | return ecb_rotl16 (x, 8); |
|
|
914 | } |
|
|
915 | |
|
|
916 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
917 | ecb_function_ uint32_t |
|
|
918 | ecb_bswap32 (uint32_t x) |
|
|
919 | { |
|
|
920 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
921 | } |
|
|
922 | |
|
|
923 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
924 | ecb_function_ uint64_t |
|
|
925 | ecb_bswap64 (uint64_t x) |
|
|
926 | { |
|
|
927 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
928 | } |
|
|
929 | #endif |
|
|
930 | |
|
|
931 | #if ECB_GCC_VERSION(4,5) |
|
|
932 | #define ecb_unreachable() __builtin_unreachable () |
|
|
933 | #else |
|
|
934 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
935 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
936 | ecb_inline void ecb_unreachable (void) { } |
|
|
937 | #endif |
|
|
938 | |
|
|
939 | /* try to tell the compiler that some condition is definitely true */ |
|
|
940 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
941 | |
|
|
942 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
943 | ecb_inline unsigned char |
|
|
944 | ecb_byteorder_helper (void) |
|
|
945 | { |
|
|
946 | const uint32_t u = 0x11223344; |
|
|
947 | return *(unsigned char *)&u; |
|
|
948 | } |
|
|
949 | |
|
|
950 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
951 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
952 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
953 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
954 | |
|
|
955 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
956 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
957 | #else |
|
|
958 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
959 | #endif |
|
|
960 | |
|
|
961 | #if __cplusplus |
|
|
962 | template<typename T> |
|
|
963 | static inline T ecb_div_rd (T val, T div) |
|
|
964 | { |
|
|
965 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
966 | } |
|
|
967 | template<typename T> |
|
|
968 | static inline T ecb_div_ru (T val, T div) |
|
|
969 | { |
|
|
970 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
971 | } |
|
|
972 | #else |
|
|
973 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
974 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | #if ecb_cplusplus_does_not_suck |
|
|
978 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
979 | template<typename T, int N> |
|
|
980 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
981 | { |
|
|
982 | return N; |
|
|
983 | } |
|
|
984 | #else |
|
|
985 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | #endif |
|
|
989 | |
|
|
990 | /* ECB.H END */ |
|
|
991 | |
|
|
992 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
993 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
994 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
995 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
996 | * libev, in which cases the memory fences become nops. |
|
|
997 | * alternatively, you can remove this #error and link against libpthread, |
|
|
998 | * which will then provide the memory fences. |
|
|
999 | */ |
|
|
1000 | # error "memory fences not defined for your architecture, please report" |
|
|
1001 | #endif |
|
|
1002 | |
|
|
1003 | #ifndef ECB_MEMORY_FENCE |
|
|
1004 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1005 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1006 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1007 | #endif |
|
|
1008 | |
|
|
1009 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1010 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1011 | #define noinline ecb_noinline |
|
|
1012 | |
471 | #define inline_size static inline |
1013 | #define inline_size ecb_inline |
472 | |
1014 | |
473 | #if EV_FEATURE_CODE |
1015 | #if EV_FEATURE_CODE |
474 | # define inline_speed static inline |
1016 | # define inline_speed ecb_inline |
475 | #else |
1017 | #else |
476 | # define inline_speed static noinline |
1018 | # define inline_speed static noinline |
477 | #endif |
1019 | #endif |
478 | |
1020 | |
479 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1021 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
494 | #define ev_active(w) ((W)(w))->active |
1036 | #define ev_active(w) ((W)(w))->active |
495 | #define ev_at(w) ((WT)(w))->at |
1037 | #define ev_at(w) ((WT)(w))->at |
496 | |
1038 | |
497 | #if EV_USE_REALTIME |
1039 | #if EV_USE_REALTIME |
498 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1040 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
499 | /* giving it a reasonably high chance of working on typical architetcures */ |
1041 | /* giving it a reasonably high chance of working on typical architectures */ |
500 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1042 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
501 | #endif |
1043 | #endif |
502 | |
1044 | |
503 | #if EV_USE_MONOTONIC |
1045 | #if EV_USE_MONOTONIC |
504 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1046 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
518 | # include "ev_win32.c" |
1060 | # include "ev_win32.c" |
519 | #endif |
1061 | #endif |
520 | |
1062 | |
521 | /*****************************************************************************/ |
1063 | /*****************************************************************************/ |
522 | |
1064 | |
|
|
1065 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1066 | |
|
|
1067 | #if EV_USE_FLOOR |
|
|
1068 | # include <math.h> |
|
|
1069 | # define ev_floor(v) floor (v) |
|
|
1070 | #else |
|
|
1071 | |
|
|
1072 | #include <float.h> |
|
|
1073 | |
|
|
1074 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1075 | static ev_tstamp noinline |
|
|
1076 | ev_floor (ev_tstamp v) |
|
|
1077 | { |
|
|
1078 | /* the choice of shift factor is not terribly important */ |
|
|
1079 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1080 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1081 | #else |
|
|
1082 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1083 | #endif |
|
|
1084 | |
|
|
1085 | /* argument too large for an unsigned long? */ |
|
|
1086 | if (expect_false (v >= shift)) |
|
|
1087 | { |
|
|
1088 | ev_tstamp f; |
|
|
1089 | |
|
|
1090 | if (v == v - 1.) |
|
|
1091 | return v; /* very large number */ |
|
|
1092 | |
|
|
1093 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1094 | return f + ev_floor (v - f); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | /* special treatment for negative args? */ |
|
|
1098 | if (expect_false (v < 0.)) |
|
|
1099 | { |
|
|
1100 | ev_tstamp f = -ev_floor (-v); |
|
|
1101 | |
|
|
1102 | return f - (f == v ? 0 : 1); |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | /* fits into an unsigned long */ |
|
|
1106 | return (unsigned long)v; |
|
|
1107 | } |
|
|
1108 | |
|
|
1109 | #endif |
|
|
1110 | |
|
|
1111 | /*****************************************************************************/ |
|
|
1112 | |
|
|
1113 | #ifdef __linux |
|
|
1114 | # include <sys/utsname.h> |
|
|
1115 | #endif |
|
|
1116 | |
|
|
1117 | static unsigned int noinline ecb_cold |
|
|
1118 | ev_linux_version (void) |
|
|
1119 | { |
|
|
1120 | #ifdef __linux |
|
|
1121 | unsigned int v = 0; |
|
|
1122 | struct utsname buf; |
|
|
1123 | int i; |
|
|
1124 | char *p = buf.release; |
|
|
1125 | |
|
|
1126 | if (uname (&buf)) |
|
|
1127 | return 0; |
|
|
1128 | |
|
|
1129 | for (i = 3+1; --i; ) |
|
|
1130 | { |
|
|
1131 | unsigned int c = 0; |
|
|
1132 | |
|
|
1133 | for (;;) |
|
|
1134 | { |
|
|
1135 | if (*p >= '0' && *p <= '9') |
|
|
1136 | c = c * 10 + *p++ - '0'; |
|
|
1137 | else |
|
|
1138 | { |
|
|
1139 | p += *p == '.'; |
|
|
1140 | break; |
|
|
1141 | } |
|
|
1142 | } |
|
|
1143 | |
|
|
1144 | v = (v << 8) | c; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | return v; |
|
|
1148 | #else |
|
|
1149 | return 0; |
|
|
1150 | #endif |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | /*****************************************************************************/ |
|
|
1154 | |
523 | #if EV_AVOID_STDIO |
1155 | #if EV_AVOID_STDIO |
524 | static void noinline |
1156 | static void noinline ecb_cold |
525 | ev_printerr (const char *msg) |
1157 | ev_printerr (const char *msg) |
526 | { |
1158 | { |
527 | write (STDERR_FILENO, msg, strlen (msg)); |
1159 | write (STDERR_FILENO, msg, strlen (msg)); |
528 | } |
1160 | } |
529 | #endif |
1161 | #endif |
530 | |
1162 | |
531 | static void (*syserr_cb)(const char *msg); |
1163 | static void (*syserr_cb)(const char *msg) EV_THROW; |
532 | |
1164 | |
533 | void |
1165 | void ecb_cold |
534 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1166 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
535 | { |
1167 | { |
536 | syserr_cb = cb; |
1168 | syserr_cb = cb; |
537 | } |
1169 | } |
538 | |
1170 | |
539 | static void noinline |
1171 | static void noinline ecb_cold |
540 | ev_syserr (const char *msg) |
1172 | ev_syserr (const char *msg) |
541 | { |
1173 | { |
542 | if (!msg) |
1174 | if (!msg) |
543 | msg = "(libev) system error"; |
1175 | msg = "(libev) system error"; |
544 | |
1176 | |
545 | if (syserr_cb) |
1177 | if (syserr_cb) |
546 | syserr_cb (msg); |
1178 | syserr_cb (msg); |
547 | else |
1179 | else |
548 | { |
1180 | { |
549 | #if EV_AVOID_STDIO |
1181 | #if EV_AVOID_STDIO |
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
1182 | ev_printerr (msg); |
553 | ev_printerr (": "); |
1183 | ev_printerr (": "); |
554 | ev_printerr (err); |
1184 | ev_printerr (strerror (errno)); |
555 | ev_printerr ("\n"); |
1185 | ev_printerr ("\n"); |
556 | #else |
1186 | #else |
557 | perror (msg); |
1187 | perror (msg); |
558 | #endif |
1188 | #endif |
559 | abort (); |
1189 | abort (); |
560 | } |
1190 | } |
561 | } |
1191 | } |
562 | |
1192 | |
563 | static void * |
1193 | static void * |
564 | ev_realloc_emul (void *ptr, long size) |
1194 | ev_realloc_emul (void *ptr, long size) EV_THROW |
565 | { |
1195 | { |
566 | #if __GLIBC__ |
|
|
567 | return realloc (ptr, size); |
|
|
568 | #else |
|
|
569 | /* some systems, notably openbsd and darwin, fail to properly |
1196 | /* some systems, notably openbsd and darwin, fail to properly |
570 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1197 | * implement realloc (x, 0) (as required by both ansi c-89 and |
571 | * the single unix specification, so work around them here. |
1198 | * the single unix specification, so work around them here. |
|
|
1199 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1200 | * despite documenting it otherwise. |
572 | */ |
1201 | */ |
573 | |
1202 | |
574 | if (size) |
1203 | if (size) |
575 | return realloc (ptr, size); |
1204 | return realloc (ptr, size); |
576 | |
1205 | |
577 | free (ptr); |
1206 | free (ptr); |
578 | return 0; |
1207 | return 0; |
579 | #endif |
|
|
580 | } |
1208 | } |
581 | |
1209 | |
582 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1210 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
583 | |
1211 | |
584 | void |
1212 | void ecb_cold |
585 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1213 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
586 | { |
1214 | { |
587 | alloc = cb; |
1215 | alloc = cb; |
588 | } |
1216 | } |
589 | |
1217 | |
590 | inline_speed void * |
1218 | inline_speed void * |
… | |
… | |
593 | ptr = alloc (ptr, size); |
1221 | ptr = alloc (ptr, size); |
594 | |
1222 | |
595 | if (!ptr && size) |
1223 | if (!ptr && size) |
596 | { |
1224 | { |
597 | #if EV_AVOID_STDIO |
1225 | #if EV_AVOID_STDIO |
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
1226 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
599 | #else |
1227 | #else |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1228 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
601 | #endif |
1229 | #endif |
602 | abort (); |
1230 | abort (); |
603 | } |
1231 | } |
604 | |
1232 | |
605 | return ptr; |
1233 | return ptr; |
… | |
… | |
622 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1250 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
623 | unsigned char unused; |
1251 | unsigned char unused; |
624 | #if EV_USE_EPOLL |
1252 | #if EV_USE_EPOLL |
625 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1253 | unsigned int egen; /* generation counter to counter epoll bugs */ |
626 | #endif |
1254 | #endif |
627 | #if EV_SELECT_IS_WINSOCKET |
1255 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
628 | SOCKET handle; |
1256 | SOCKET handle; |
|
|
1257 | #endif |
|
|
1258 | #if EV_USE_IOCP |
|
|
1259 | OVERLAPPED or, ow; |
629 | #endif |
1260 | #endif |
630 | } ANFD; |
1261 | } ANFD; |
631 | |
1262 | |
632 | /* stores the pending event set for a given watcher */ |
1263 | /* stores the pending event set for a given watcher */ |
633 | typedef struct |
1264 | typedef struct |
… | |
… | |
675 | #undef VAR |
1306 | #undef VAR |
676 | }; |
1307 | }; |
677 | #include "ev_wrap.h" |
1308 | #include "ev_wrap.h" |
678 | |
1309 | |
679 | static struct ev_loop default_loop_struct; |
1310 | static struct ev_loop default_loop_struct; |
680 | struct ev_loop *ev_default_loop_ptr; |
1311 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
681 | |
1312 | |
682 | #else |
1313 | #else |
683 | |
1314 | |
684 | ev_tstamp ev_rt_now; |
1315 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
685 | #define VAR(name,decl) static decl; |
1316 | #define VAR(name,decl) static decl; |
686 | #include "ev_vars.h" |
1317 | #include "ev_vars.h" |
687 | #undef VAR |
1318 | #undef VAR |
688 | |
1319 | |
689 | static int ev_default_loop_ptr; |
1320 | static int ev_default_loop_ptr; |
… | |
… | |
698 | # define EV_RELEASE_CB (void)0 |
1329 | # define EV_RELEASE_CB (void)0 |
699 | # define EV_ACQUIRE_CB (void)0 |
1330 | # define EV_ACQUIRE_CB (void)0 |
700 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1331 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
701 | #endif |
1332 | #endif |
702 | |
1333 | |
703 | #define EVUNLOOP_RECURSE 0x80 |
1334 | #define EVBREAK_RECURSE 0x80 |
704 | |
1335 | |
705 | /*****************************************************************************/ |
1336 | /*****************************************************************************/ |
706 | |
1337 | |
707 | #ifndef EV_HAVE_EV_TIME |
1338 | #ifndef EV_HAVE_EV_TIME |
708 | ev_tstamp |
1339 | ev_tstamp |
709 | ev_time (void) |
1340 | ev_time (void) EV_THROW |
710 | { |
1341 | { |
711 | #if EV_USE_REALTIME |
1342 | #if EV_USE_REALTIME |
712 | if (expect_true (have_realtime)) |
1343 | if (expect_true (have_realtime)) |
713 | { |
1344 | { |
714 | struct timespec ts; |
1345 | struct timespec ts; |
… | |
… | |
738 | return ev_time (); |
1369 | return ev_time (); |
739 | } |
1370 | } |
740 | |
1371 | |
741 | #if EV_MULTIPLICITY |
1372 | #if EV_MULTIPLICITY |
742 | ev_tstamp |
1373 | ev_tstamp |
743 | ev_now (EV_P) |
1374 | ev_now (EV_P) EV_THROW |
744 | { |
1375 | { |
745 | return ev_rt_now; |
1376 | return ev_rt_now; |
746 | } |
1377 | } |
747 | #endif |
1378 | #endif |
748 | |
1379 | |
749 | void |
1380 | void |
750 | ev_sleep (ev_tstamp delay) |
1381 | ev_sleep (ev_tstamp delay) EV_THROW |
751 | { |
1382 | { |
752 | if (delay > 0.) |
1383 | if (delay > 0.) |
753 | { |
1384 | { |
754 | #if EV_USE_NANOSLEEP |
1385 | #if EV_USE_NANOSLEEP |
755 | struct timespec ts; |
1386 | struct timespec ts; |
756 | |
1387 | |
757 | ts.tv_sec = (time_t)delay; |
1388 | EV_TS_SET (ts, delay); |
758 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
759 | |
|
|
760 | nanosleep (&ts, 0); |
1389 | nanosleep (&ts, 0); |
761 | #elif defined(_WIN32) |
1390 | #elif defined _WIN32 |
762 | Sleep ((unsigned long)(delay * 1e3)); |
1391 | Sleep ((unsigned long)(delay * 1e3)); |
763 | #else |
1392 | #else |
764 | struct timeval tv; |
1393 | struct timeval tv; |
765 | |
1394 | |
766 | tv.tv_sec = (time_t)delay; |
|
|
767 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
768 | |
|
|
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1395 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
770 | /* something not guaranteed by newer posix versions, but guaranteed */ |
1396 | /* something not guaranteed by newer posix versions, but guaranteed */ |
771 | /* by older ones */ |
1397 | /* by older ones */ |
|
|
1398 | EV_TV_SET (tv, delay); |
772 | select (0, 0, 0, 0, &tv); |
1399 | select (0, 0, 0, 0, &tv); |
773 | #endif |
1400 | #endif |
774 | } |
1401 | } |
775 | } |
1402 | } |
776 | |
1403 | |
777 | /*****************************************************************************/ |
1404 | /*****************************************************************************/ |
778 | |
1405 | |
779 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1406 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
780 | |
1407 | |
781 | /* find a suitable new size for the given array, */ |
1408 | /* find a suitable new size for the given array, */ |
782 | /* hopefully by rounding to a ncie-to-malloc size */ |
1409 | /* hopefully by rounding to a nice-to-malloc size */ |
783 | inline_size int |
1410 | inline_size int |
784 | array_nextsize (int elem, int cur, int cnt) |
1411 | array_nextsize (int elem, int cur, int cnt) |
785 | { |
1412 | { |
786 | int ncur = cur + 1; |
1413 | int ncur = cur + 1; |
787 | |
1414 | |
788 | do |
1415 | do |
789 | ncur <<= 1; |
1416 | ncur <<= 1; |
790 | while (cnt > ncur); |
1417 | while (cnt > ncur); |
791 | |
1418 | |
792 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1419 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
793 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1420 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
794 | { |
1421 | { |
795 | ncur *= elem; |
1422 | ncur *= elem; |
796 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1423 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
797 | ncur = ncur - sizeof (void *) * 4; |
1424 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
799 | } |
1426 | } |
800 | |
1427 | |
801 | return ncur; |
1428 | return ncur; |
802 | } |
1429 | } |
803 | |
1430 | |
804 | static noinline void * |
1431 | static void * noinline ecb_cold |
805 | array_realloc (int elem, void *base, int *cur, int cnt) |
1432 | array_realloc (int elem, void *base, int *cur, int cnt) |
806 | { |
1433 | { |
807 | *cur = array_nextsize (elem, *cur, cnt); |
1434 | *cur = array_nextsize (elem, *cur, cnt); |
808 | return ev_realloc (base, elem * *cur); |
1435 | return ev_realloc (base, elem * *cur); |
809 | } |
1436 | } |
… | |
… | |
812 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1439 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
813 | |
1440 | |
814 | #define array_needsize(type,base,cur,cnt,init) \ |
1441 | #define array_needsize(type,base,cur,cnt,init) \ |
815 | if (expect_false ((cnt) > (cur))) \ |
1442 | if (expect_false ((cnt) > (cur))) \ |
816 | { \ |
1443 | { \ |
817 | int ocur_ = (cur); \ |
1444 | int ecb_unused ocur_ = (cur); \ |
818 | (base) = (type *)array_realloc \ |
1445 | (base) = (type *)array_realloc \ |
819 | (sizeof (type), (base), &(cur), (cnt)); \ |
1446 | (sizeof (type), (base), &(cur), (cnt)); \ |
820 | init ((base) + (ocur_), (cur) - ocur_); \ |
1447 | init ((base) + (ocur_), (cur) - ocur_); \ |
821 | } |
1448 | } |
822 | |
1449 | |
… | |
… | |
840 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1467 | pendingcb (EV_P_ ev_prepare *w, int revents) |
841 | { |
1468 | { |
842 | } |
1469 | } |
843 | |
1470 | |
844 | void noinline |
1471 | void noinline |
845 | ev_feed_event (EV_P_ void *w, int revents) |
1472 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
846 | { |
1473 | { |
847 | W w_ = (W)w; |
1474 | W w_ = (W)w; |
848 | int pri = ABSPRI (w_); |
1475 | int pri = ABSPRI (w_); |
849 | |
1476 | |
850 | if (expect_false (w_->pending)) |
1477 | if (expect_false (w_->pending)) |
… | |
… | |
854 | w_->pending = ++pendingcnt [pri]; |
1481 | w_->pending = ++pendingcnt [pri]; |
855 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1482 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
856 | pendings [pri][w_->pending - 1].w = w_; |
1483 | pendings [pri][w_->pending - 1].w = w_; |
857 | pendings [pri][w_->pending - 1].events = revents; |
1484 | pendings [pri][w_->pending - 1].events = revents; |
858 | } |
1485 | } |
|
|
1486 | |
|
|
1487 | pendingpri = NUMPRI - 1; |
859 | } |
1488 | } |
860 | |
1489 | |
861 | inline_speed void |
1490 | inline_speed void |
862 | feed_reverse (EV_P_ W w) |
1491 | feed_reverse (EV_P_ W w) |
863 | { |
1492 | { |
… | |
… | |
909 | if (expect_true (!anfd->reify)) |
1538 | if (expect_true (!anfd->reify)) |
910 | fd_event_nocheck (EV_A_ fd, revents); |
1539 | fd_event_nocheck (EV_A_ fd, revents); |
911 | } |
1540 | } |
912 | |
1541 | |
913 | void |
1542 | void |
914 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1543 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
915 | { |
1544 | { |
916 | if (fd >= 0 && fd < anfdmax) |
1545 | if (fd >= 0 && fd < anfdmax) |
917 | fd_event_nocheck (EV_A_ fd, revents); |
1546 | fd_event_nocheck (EV_A_ fd, revents); |
918 | } |
1547 | } |
919 | |
1548 | |
… | |
… | |
922 | inline_size void |
1551 | inline_size void |
923 | fd_reify (EV_P) |
1552 | fd_reify (EV_P) |
924 | { |
1553 | { |
925 | int i; |
1554 | int i; |
926 | |
1555 | |
|
|
1556 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1557 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1558 | { |
|
|
1559 | int fd = fdchanges [i]; |
|
|
1560 | ANFD *anfd = anfds + fd; |
|
|
1561 | |
|
|
1562 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1563 | { |
|
|
1564 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1565 | |
|
|
1566 | if (handle != anfd->handle) |
|
|
1567 | { |
|
|
1568 | unsigned long arg; |
|
|
1569 | |
|
|
1570 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1571 | |
|
|
1572 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1573 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1574 | anfd->events = 0; |
|
|
1575 | anfd->handle = handle; |
|
|
1576 | } |
|
|
1577 | } |
|
|
1578 | } |
|
|
1579 | #endif |
|
|
1580 | |
927 | for (i = 0; i < fdchangecnt; ++i) |
1581 | for (i = 0; i < fdchangecnt; ++i) |
928 | { |
1582 | { |
929 | int fd = fdchanges [i]; |
1583 | int fd = fdchanges [i]; |
930 | ANFD *anfd = anfds + fd; |
1584 | ANFD *anfd = anfds + fd; |
931 | ev_io *w; |
1585 | ev_io *w; |
932 | |
1586 | |
933 | unsigned char events = 0; |
1587 | unsigned char o_events = anfd->events; |
|
|
1588 | unsigned char o_reify = anfd->reify; |
934 | |
1589 | |
935 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1590 | anfd->reify = 0; |
936 | events |= (unsigned char)w->events; |
|
|
937 | |
1591 | |
938 | #if EV_SELECT_IS_WINSOCKET |
1592 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
939 | if (events) |
|
|
940 | { |
1593 | { |
941 | unsigned long arg; |
1594 | anfd->events = 0; |
942 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1595 | |
943 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1596 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1597 | anfd->events |= (unsigned char)w->events; |
|
|
1598 | |
|
|
1599 | if (o_events != anfd->events) |
|
|
1600 | o_reify = EV__IOFDSET; /* actually |= */ |
944 | } |
1601 | } |
945 | #endif |
|
|
946 | |
1602 | |
947 | { |
1603 | if (o_reify & EV__IOFDSET) |
948 | unsigned char o_events = anfd->events; |
|
|
949 | unsigned char o_reify = anfd->reify; |
|
|
950 | |
|
|
951 | anfd->reify = 0; |
|
|
952 | anfd->events = events; |
|
|
953 | |
|
|
954 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
955 | backend_modify (EV_A_ fd, o_events, events); |
1604 | backend_modify (EV_A_ fd, o_events, anfd->events); |
956 | } |
|
|
957 | } |
1605 | } |
958 | |
1606 | |
959 | fdchangecnt = 0; |
1607 | fdchangecnt = 0; |
960 | } |
1608 | } |
961 | |
1609 | |
… | |
… | |
973 | fdchanges [fdchangecnt - 1] = fd; |
1621 | fdchanges [fdchangecnt - 1] = fd; |
974 | } |
1622 | } |
975 | } |
1623 | } |
976 | |
1624 | |
977 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1625 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
978 | inline_speed void |
1626 | inline_speed void ecb_cold |
979 | fd_kill (EV_P_ int fd) |
1627 | fd_kill (EV_P_ int fd) |
980 | { |
1628 | { |
981 | ev_io *w; |
1629 | ev_io *w; |
982 | |
1630 | |
983 | while ((w = (ev_io *)anfds [fd].head)) |
1631 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
986 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1634 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
987 | } |
1635 | } |
988 | } |
1636 | } |
989 | |
1637 | |
990 | /* check whether the given fd is actually valid, for error recovery */ |
1638 | /* check whether the given fd is actually valid, for error recovery */ |
991 | inline_size int |
1639 | inline_size int ecb_cold |
992 | fd_valid (int fd) |
1640 | fd_valid (int fd) |
993 | { |
1641 | { |
994 | #ifdef _WIN32 |
1642 | #ifdef _WIN32 |
995 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1643 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
996 | #else |
1644 | #else |
997 | return fcntl (fd, F_GETFD) != -1; |
1645 | return fcntl (fd, F_GETFD) != -1; |
998 | #endif |
1646 | #endif |
999 | } |
1647 | } |
1000 | |
1648 | |
1001 | /* called on EBADF to verify fds */ |
1649 | /* called on EBADF to verify fds */ |
1002 | static void noinline |
1650 | static void noinline ecb_cold |
1003 | fd_ebadf (EV_P) |
1651 | fd_ebadf (EV_P) |
1004 | { |
1652 | { |
1005 | int fd; |
1653 | int fd; |
1006 | |
1654 | |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
1655 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1009 | if (!fd_valid (fd) && errno == EBADF) |
1657 | if (!fd_valid (fd) && errno == EBADF) |
1010 | fd_kill (EV_A_ fd); |
1658 | fd_kill (EV_A_ fd); |
1011 | } |
1659 | } |
1012 | |
1660 | |
1013 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1661 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1014 | static void noinline |
1662 | static void noinline ecb_cold |
1015 | fd_enomem (EV_P) |
1663 | fd_enomem (EV_P) |
1016 | { |
1664 | { |
1017 | int fd; |
1665 | int fd; |
1018 | |
1666 | |
1019 | for (fd = anfdmax; fd--; ) |
1667 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1054 | } |
1702 | } |
1055 | |
1703 | |
1056 | /*****************************************************************************/ |
1704 | /*****************************************************************************/ |
1057 | |
1705 | |
1058 | /* |
1706 | /* |
1059 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1707 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1060 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1708 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1061 | * the branching factor of the d-tree. |
1709 | * the branching factor of the d-tree. |
1062 | */ |
1710 | */ |
1063 | |
1711 | |
1064 | /* |
1712 | /* |
… | |
… | |
1214 | |
1862 | |
1215 | /*****************************************************************************/ |
1863 | /*****************************************************************************/ |
1216 | |
1864 | |
1217 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1865 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1218 | |
1866 | |
1219 | static void noinline |
1867 | static void noinline ecb_cold |
1220 | evpipe_init (EV_P) |
1868 | evpipe_init (EV_P) |
1221 | { |
1869 | { |
1222 | if (!ev_is_active (&pipe_w)) |
1870 | if (!ev_is_active (&pipe_w)) |
1223 | { |
1871 | { |
|
|
1872 | int fds [2]; |
|
|
1873 | |
1224 | # if EV_USE_EVENTFD |
1874 | # if EV_USE_EVENTFD |
|
|
1875 | fds [0] = -1; |
1225 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1876 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1226 | if (evfd < 0 && errno == EINVAL) |
1877 | if (fds [1] < 0 && errno == EINVAL) |
1227 | evfd = eventfd (0, 0); |
1878 | fds [1] = eventfd (0, 0); |
1228 | |
1879 | |
1229 | if (evfd >= 0) |
1880 | if (fds [1] < 0) |
|
|
1881 | # endif |
1230 | { |
1882 | { |
|
|
1883 | while (pipe (fds)) |
|
|
1884 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1885 | |
|
|
1886 | fd_intern (fds [0]); |
|
|
1887 | } |
|
|
1888 | |
|
|
1889 | fd_intern (fds [1]); |
|
|
1890 | |
1231 | evpipe [0] = -1; |
1891 | evpipe [0] = fds [0]; |
1232 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1892 | |
1233 | ev_io_set (&pipe_w, evfd, EV_READ); |
1893 | if (evpipe [1] < 0) |
|
|
1894 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
1895 | else |
|
|
1896 | { |
|
|
1897 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
1898 | /* so that evpipe_write can always rely on its value. */ |
|
|
1899 | /* this branch does not do anything sensible on windows, */ |
|
|
1900 | /* so must not be executed on windows */ |
|
|
1901 | |
|
|
1902 | dup2 (fds [1], evpipe [1]); |
|
|
1903 | close (fds [1]); |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
1907 | ev_io_start (EV_A_ &pipe_w); |
|
|
1908 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1909 | } |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | inline_speed void |
|
|
1913 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1914 | { |
|
|
1915 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
1916 | |
|
|
1917 | if (expect_true (*flag)) |
|
|
1918 | return; |
|
|
1919 | |
|
|
1920 | *flag = 1; |
|
|
1921 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1922 | |
|
|
1923 | pipe_write_skipped = 1; |
|
|
1924 | |
|
|
1925 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1926 | |
|
|
1927 | if (pipe_write_wanted) |
|
|
1928 | { |
|
|
1929 | int old_errno; |
|
|
1930 | |
|
|
1931 | pipe_write_skipped = 0; |
|
|
1932 | ECB_MEMORY_FENCE_RELEASE; |
|
|
1933 | |
|
|
1934 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1935 | |
|
|
1936 | #if EV_USE_EVENTFD |
|
|
1937 | if (evpipe [0] < 0) |
|
|
1938 | { |
|
|
1939 | uint64_t counter = 1; |
|
|
1940 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1234 | } |
1941 | } |
1235 | else |
1942 | else |
1236 | # endif |
1943 | #endif |
1237 | { |
1944 | { |
1238 | while (pipe (evpipe)) |
1945 | #ifdef _WIN32 |
1239 | ev_syserr ("(libev) error creating signal/async pipe"); |
1946 | WSABUF buf; |
1240 | |
1947 | DWORD sent; |
1241 | fd_intern (evpipe [0]); |
1948 | buf.buf = &buf; |
1242 | fd_intern (evpipe [1]); |
1949 | buf.len = 1; |
1243 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1950 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
1951 | #else |
|
|
1952 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1953 | #endif |
1244 | } |
1954 | } |
1245 | |
|
|
1246 | ev_io_start (EV_A_ &pipe_w); |
|
|
1247 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1248 | } |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | inline_size void |
|
|
1252 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1253 | { |
|
|
1254 | if (!*flag) |
|
|
1255 | { |
|
|
1256 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1257 | char dummy; |
|
|
1258 | |
|
|
1259 | *flag = 1; |
|
|
1260 | |
|
|
1261 | #if EV_USE_EVENTFD |
|
|
1262 | if (evfd >= 0) |
|
|
1263 | { |
|
|
1264 | uint64_t counter = 1; |
|
|
1265 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1266 | } |
|
|
1267 | else |
|
|
1268 | #endif |
|
|
1269 | write (evpipe [1], &dummy, 1); |
|
|
1270 | |
1955 | |
1271 | errno = old_errno; |
1956 | errno = old_errno; |
1272 | } |
1957 | } |
1273 | } |
1958 | } |
1274 | |
1959 | |
… | |
… | |
1277 | static void |
1962 | static void |
1278 | pipecb (EV_P_ ev_io *iow, int revents) |
1963 | pipecb (EV_P_ ev_io *iow, int revents) |
1279 | { |
1964 | { |
1280 | int i; |
1965 | int i; |
1281 | |
1966 | |
|
|
1967 | if (revents & EV_READ) |
|
|
1968 | { |
1282 | #if EV_USE_EVENTFD |
1969 | #if EV_USE_EVENTFD |
1283 | if (evfd >= 0) |
1970 | if (evpipe [0] < 0) |
1284 | { |
1971 | { |
1285 | uint64_t counter; |
1972 | uint64_t counter; |
1286 | read (evfd, &counter, sizeof (uint64_t)); |
1973 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1287 | } |
1974 | } |
1288 | else |
1975 | else |
1289 | #endif |
1976 | #endif |
1290 | { |
1977 | { |
1291 | char dummy; |
1978 | char dummy[4]; |
|
|
1979 | #ifdef _WIN32 |
|
|
1980 | WSABUF buf; |
|
|
1981 | DWORD recvd; |
|
|
1982 | DWORD flags = 0; |
|
|
1983 | buf.buf = dummy; |
|
|
1984 | buf.len = sizeof (dummy); |
|
|
1985 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
1986 | #else |
1292 | read (evpipe [0], &dummy, 1); |
1987 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
1988 | #endif |
|
|
1989 | } |
1293 | } |
1990 | } |
1294 | |
1991 | |
|
|
1992 | pipe_write_skipped = 0; |
|
|
1993 | |
|
|
1994 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
1995 | |
|
|
1996 | #if EV_SIGNAL_ENABLE |
1295 | if (sig_pending) |
1997 | if (sig_pending) |
1296 | { |
1998 | { |
1297 | sig_pending = 0; |
1999 | sig_pending = 0; |
|
|
2000 | |
|
|
2001 | ECB_MEMORY_FENCE; |
1298 | |
2002 | |
1299 | for (i = EV_NSIG - 1; i--; ) |
2003 | for (i = EV_NSIG - 1; i--; ) |
1300 | if (expect_false (signals [i].pending)) |
2004 | if (expect_false (signals [i].pending)) |
1301 | ev_feed_signal_event (EV_A_ i + 1); |
2005 | ev_feed_signal_event (EV_A_ i + 1); |
1302 | } |
2006 | } |
|
|
2007 | #endif |
1303 | |
2008 | |
1304 | #if EV_ASYNC_ENABLE |
2009 | #if EV_ASYNC_ENABLE |
1305 | if (async_pending) |
2010 | if (async_pending) |
1306 | { |
2011 | { |
1307 | async_pending = 0; |
2012 | async_pending = 0; |
|
|
2013 | |
|
|
2014 | ECB_MEMORY_FENCE; |
1308 | |
2015 | |
1309 | for (i = asynccnt; i--; ) |
2016 | for (i = asynccnt; i--; ) |
1310 | if (asyncs [i]->sent) |
2017 | if (asyncs [i]->sent) |
1311 | { |
2018 | { |
1312 | asyncs [i]->sent = 0; |
2019 | asyncs [i]->sent = 0; |
|
|
2020 | ECB_MEMORY_FENCE_RELEASE; |
1313 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2021 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1314 | } |
2022 | } |
1315 | } |
2023 | } |
1316 | #endif |
2024 | #endif |
1317 | } |
2025 | } |
1318 | |
2026 | |
1319 | /*****************************************************************************/ |
2027 | /*****************************************************************************/ |
1320 | |
2028 | |
|
|
2029 | void |
|
|
2030 | ev_feed_signal (int signum) EV_THROW |
|
|
2031 | { |
|
|
2032 | #if EV_MULTIPLICITY |
|
|
2033 | EV_P = signals [signum - 1].loop; |
|
|
2034 | |
|
|
2035 | if (!EV_A) |
|
|
2036 | return; |
|
|
2037 | #endif |
|
|
2038 | |
|
|
2039 | signals [signum - 1].pending = 1; |
|
|
2040 | evpipe_write (EV_A_ &sig_pending); |
|
|
2041 | } |
|
|
2042 | |
1321 | static void |
2043 | static void |
1322 | ev_sighandler (int signum) |
2044 | ev_sighandler (int signum) |
1323 | { |
2045 | { |
1324 | #if EV_MULTIPLICITY |
|
|
1325 | EV_P = signals [signum - 1].loop; |
|
|
1326 | #endif |
|
|
1327 | |
|
|
1328 | #ifdef _WIN32 |
2046 | #ifdef _WIN32 |
1329 | signal (signum, ev_sighandler); |
2047 | signal (signum, ev_sighandler); |
1330 | #endif |
2048 | #endif |
1331 | |
2049 | |
1332 | signals [signum - 1].pending = 1; |
2050 | ev_feed_signal (signum); |
1333 | evpipe_write (EV_A_ &sig_pending); |
|
|
1334 | } |
2051 | } |
1335 | |
2052 | |
1336 | void noinline |
2053 | void noinline |
1337 | ev_feed_signal_event (EV_P_ int signum) |
2054 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1338 | { |
2055 | { |
1339 | WL w; |
2056 | WL w; |
1340 | |
2057 | |
1341 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2058 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1342 | return; |
2059 | return; |
1343 | |
2060 | |
1344 | --signum; |
2061 | --signum; |
1345 | |
2062 | |
1346 | #if EV_MULTIPLICITY |
2063 | #if EV_MULTIPLICITY |
… | |
… | |
1350 | if (expect_false (signals [signum].loop != EV_A)) |
2067 | if (expect_false (signals [signum].loop != EV_A)) |
1351 | return; |
2068 | return; |
1352 | #endif |
2069 | #endif |
1353 | |
2070 | |
1354 | signals [signum].pending = 0; |
2071 | signals [signum].pending = 0; |
|
|
2072 | ECB_MEMORY_FENCE_RELEASE; |
1355 | |
2073 | |
1356 | for (w = signals [signum].head; w; w = w->next) |
2074 | for (w = signals [signum].head; w; w = w->next) |
1357 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2075 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1358 | } |
2076 | } |
1359 | |
2077 | |
… | |
… | |
1438 | |
2156 | |
1439 | #endif |
2157 | #endif |
1440 | |
2158 | |
1441 | /*****************************************************************************/ |
2159 | /*****************************************************************************/ |
1442 | |
2160 | |
|
|
2161 | #if EV_USE_IOCP |
|
|
2162 | # include "ev_iocp.c" |
|
|
2163 | #endif |
1443 | #if EV_USE_PORT |
2164 | #if EV_USE_PORT |
1444 | # include "ev_port.c" |
2165 | # include "ev_port.c" |
1445 | #endif |
2166 | #endif |
1446 | #if EV_USE_KQUEUE |
2167 | #if EV_USE_KQUEUE |
1447 | # include "ev_kqueue.c" |
2168 | # include "ev_kqueue.c" |
… | |
… | |
1454 | #endif |
2175 | #endif |
1455 | #if EV_USE_SELECT |
2176 | #if EV_USE_SELECT |
1456 | # include "ev_select.c" |
2177 | # include "ev_select.c" |
1457 | #endif |
2178 | #endif |
1458 | |
2179 | |
1459 | int |
2180 | int ecb_cold |
1460 | ev_version_major (void) |
2181 | ev_version_major (void) EV_THROW |
1461 | { |
2182 | { |
1462 | return EV_VERSION_MAJOR; |
2183 | return EV_VERSION_MAJOR; |
1463 | } |
2184 | } |
1464 | |
2185 | |
1465 | int |
2186 | int ecb_cold |
1466 | ev_version_minor (void) |
2187 | ev_version_minor (void) EV_THROW |
1467 | { |
2188 | { |
1468 | return EV_VERSION_MINOR; |
2189 | return EV_VERSION_MINOR; |
1469 | } |
2190 | } |
1470 | |
2191 | |
1471 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2192 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1472 | int inline_size |
2193 | int inline_size ecb_cold |
1473 | enable_secure (void) |
2194 | enable_secure (void) |
1474 | { |
2195 | { |
1475 | #ifdef _WIN32 |
2196 | #ifdef _WIN32 |
1476 | return 0; |
2197 | return 0; |
1477 | #else |
2198 | #else |
1478 | return getuid () != geteuid () |
2199 | return getuid () != geteuid () |
1479 | || getgid () != getegid (); |
2200 | || getgid () != getegid (); |
1480 | #endif |
2201 | #endif |
1481 | } |
2202 | } |
1482 | |
2203 | |
1483 | unsigned int |
2204 | unsigned int ecb_cold |
1484 | ev_supported_backends (void) |
2205 | ev_supported_backends (void) EV_THROW |
1485 | { |
2206 | { |
1486 | unsigned int flags = 0; |
2207 | unsigned int flags = 0; |
1487 | |
2208 | |
1488 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2209 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1489 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2210 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1492 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2213 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1493 | |
2214 | |
1494 | return flags; |
2215 | return flags; |
1495 | } |
2216 | } |
1496 | |
2217 | |
1497 | unsigned int |
2218 | unsigned int ecb_cold |
1498 | ev_recommended_backends (void) |
2219 | ev_recommended_backends (void) EV_THROW |
1499 | { |
2220 | { |
1500 | unsigned int flags = ev_supported_backends (); |
2221 | unsigned int flags = ev_supported_backends (); |
1501 | |
2222 | |
1502 | #ifndef __NetBSD__ |
2223 | #ifndef __NetBSD__ |
1503 | /* kqueue is borked on everything but netbsd apparently */ |
2224 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1507 | #ifdef __APPLE__ |
2228 | #ifdef __APPLE__ |
1508 | /* only select works correctly on that "unix-certified" platform */ |
2229 | /* only select works correctly on that "unix-certified" platform */ |
1509 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2230 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1510 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2231 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1511 | #endif |
2232 | #endif |
|
|
2233 | #ifdef __FreeBSD__ |
|
|
2234 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2235 | #endif |
1512 | |
2236 | |
1513 | return flags; |
2237 | return flags; |
1514 | } |
2238 | } |
1515 | |
2239 | |
|
|
2240 | unsigned int ecb_cold |
|
|
2241 | ev_embeddable_backends (void) EV_THROW |
|
|
2242 | { |
|
|
2243 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2244 | |
|
|
2245 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2246 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2247 | flags &= ~EVBACKEND_EPOLL; |
|
|
2248 | |
|
|
2249 | return flags; |
|
|
2250 | } |
|
|
2251 | |
1516 | unsigned int |
2252 | unsigned int |
1517 | ev_embeddable_backends (void) |
|
|
1518 | { |
|
|
1519 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1520 | |
|
|
1521 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1522 | /* please fix it and tell me how to detect the fix */ |
|
|
1523 | flags &= ~EVBACKEND_EPOLL; |
|
|
1524 | |
|
|
1525 | return flags; |
|
|
1526 | } |
|
|
1527 | |
|
|
1528 | unsigned int |
|
|
1529 | ev_backend (EV_P) |
2253 | ev_backend (EV_P) EV_THROW |
1530 | { |
2254 | { |
1531 | return backend; |
2255 | return backend; |
1532 | } |
2256 | } |
1533 | |
2257 | |
1534 | #if EV_FEATURE_API |
2258 | #if EV_FEATURE_API |
1535 | unsigned int |
2259 | unsigned int |
1536 | ev_loop_count (EV_P) |
2260 | ev_iteration (EV_P) EV_THROW |
1537 | { |
2261 | { |
1538 | return loop_count; |
2262 | return loop_count; |
1539 | } |
2263 | } |
1540 | |
2264 | |
1541 | unsigned int |
2265 | unsigned int |
1542 | ev_loop_depth (EV_P) |
2266 | ev_depth (EV_P) EV_THROW |
1543 | { |
2267 | { |
1544 | return loop_depth; |
2268 | return loop_depth; |
1545 | } |
2269 | } |
1546 | |
2270 | |
1547 | void |
2271 | void |
1548 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2272 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1549 | { |
2273 | { |
1550 | io_blocktime = interval; |
2274 | io_blocktime = interval; |
1551 | } |
2275 | } |
1552 | |
2276 | |
1553 | void |
2277 | void |
1554 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2278 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1555 | { |
2279 | { |
1556 | timeout_blocktime = interval; |
2280 | timeout_blocktime = interval; |
1557 | } |
2281 | } |
1558 | |
2282 | |
1559 | void |
2283 | void |
1560 | ev_set_userdata (EV_P_ void *data) |
2284 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1561 | { |
2285 | { |
1562 | userdata = data; |
2286 | userdata = data; |
1563 | } |
2287 | } |
1564 | |
2288 | |
1565 | void * |
2289 | void * |
1566 | ev_userdata (EV_P) |
2290 | ev_userdata (EV_P) EV_THROW |
1567 | { |
2291 | { |
1568 | return userdata; |
2292 | return userdata; |
1569 | } |
2293 | } |
1570 | |
2294 | |
|
|
2295 | void |
1571 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2296 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1572 | { |
2297 | { |
1573 | invoke_cb = invoke_pending_cb; |
2298 | invoke_cb = invoke_pending_cb; |
1574 | } |
2299 | } |
1575 | |
2300 | |
|
|
2301 | void |
1576 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2302 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1577 | { |
2303 | { |
1578 | release_cb = release; |
2304 | release_cb = release; |
1579 | acquire_cb = acquire; |
2305 | acquire_cb = acquire; |
1580 | } |
2306 | } |
1581 | #endif |
2307 | #endif |
1582 | |
2308 | |
1583 | /* initialise a loop structure, must be zero-initialised */ |
2309 | /* initialise a loop structure, must be zero-initialised */ |
1584 | static void noinline |
2310 | static void noinline ecb_cold |
1585 | loop_init (EV_P_ unsigned int flags) |
2311 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1586 | { |
2312 | { |
1587 | if (!backend) |
2313 | if (!backend) |
1588 | { |
2314 | { |
|
|
2315 | origflags = flags; |
|
|
2316 | |
1589 | #if EV_USE_REALTIME |
2317 | #if EV_USE_REALTIME |
1590 | if (!have_realtime) |
2318 | if (!have_realtime) |
1591 | { |
2319 | { |
1592 | struct timespec ts; |
2320 | struct timespec ts; |
1593 | |
2321 | |
… | |
… | |
1615 | if (!(flags & EVFLAG_NOENV) |
2343 | if (!(flags & EVFLAG_NOENV) |
1616 | && !enable_secure () |
2344 | && !enable_secure () |
1617 | && getenv ("LIBEV_FLAGS")) |
2345 | && getenv ("LIBEV_FLAGS")) |
1618 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2346 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1619 | |
2347 | |
1620 | ev_rt_now = ev_time (); |
2348 | ev_rt_now = ev_time (); |
1621 | mn_now = get_clock (); |
2349 | mn_now = get_clock (); |
1622 | now_floor = mn_now; |
2350 | now_floor = mn_now; |
1623 | rtmn_diff = ev_rt_now - mn_now; |
2351 | rtmn_diff = ev_rt_now - mn_now; |
1624 | #if EV_FEATURE_API |
2352 | #if EV_FEATURE_API |
1625 | invoke_cb = ev_invoke_pending; |
2353 | invoke_cb = ev_invoke_pending; |
1626 | #endif |
2354 | #endif |
1627 | |
2355 | |
1628 | io_blocktime = 0.; |
2356 | io_blocktime = 0.; |
1629 | timeout_blocktime = 0.; |
2357 | timeout_blocktime = 0.; |
1630 | backend = 0; |
2358 | backend = 0; |
1631 | backend_fd = -1; |
2359 | backend_fd = -1; |
1632 | sig_pending = 0; |
2360 | sig_pending = 0; |
1633 | #if EV_ASYNC_ENABLE |
2361 | #if EV_ASYNC_ENABLE |
1634 | async_pending = 0; |
2362 | async_pending = 0; |
1635 | #endif |
2363 | #endif |
|
|
2364 | pipe_write_skipped = 0; |
|
|
2365 | pipe_write_wanted = 0; |
|
|
2366 | evpipe [0] = -1; |
|
|
2367 | evpipe [1] = -1; |
1636 | #if EV_USE_INOTIFY |
2368 | #if EV_USE_INOTIFY |
1637 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2369 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1638 | #endif |
2370 | #endif |
1639 | #if EV_USE_SIGNALFD |
2371 | #if EV_USE_SIGNALFD |
1640 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2372 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1641 | #endif |
2373 | #endif |
1642 | |
2374 | |
1643 | if (!(flags & 0x0000ffffU)) |
2375 | if (!(flags & EVBACKEND_MASK)) |
1644 | flags |= ev_recommended_backends (); |
2376 | flags |= ev_recommended_backends (); |
1645 | |
2377 | |
|
|
2378 | #if EV_USE_IOCP |
|
|
2379 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2380 | #endif |
1646 | #if EV_USE_PORT |
2381 | #if EV_USE_PORT |
1647 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2382 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1648 | #endif |
2383 | #endif |
1649 | #if EV_USE_KQUEUE |
2384 | #if EV_USE_KQUEUE |
1650 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2385 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1667 | #endif |
2402 | #endif |
1668 | } |
2403 | } |
1669 | } |
2404 | } |
1670 | |
2405 | |
1671 | /* free up a loop structure */ |
2406 | /* free up a loop structure */ |
1672 | static void noinline |
2407 | void ecb_cold |
1673 | loop_destroy (EV_P) |
2408 | ev_loop_destroy (EV_P) |
1674 | { |
2409 | { |
1675 | int i; |
2410 | int i; |
|
|
2411 | |
|
|
2412 | #if EV_MULTIPLICITY |
|
|
2413 | /* mimic free (0) */ |
|
|
2414 | if (!EV_A) |
|
|
2415 | return; |
|
|
2416 | #endif |
|
|
2417 | |
|
|
2418 | #if EV_CLEANUP_ENABLE |
|
|
2419 | /* queue cleanup watchers (and execute them) */ |
|
|
2420 | if (expect_false (cleanupcnt)) |
|
|
2421 | { |
|
|
2422 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2423 | EV_INVOKE_PENDING; |
|
|
2424 | } |
|
|
2425 | #endif |
|
|
2426 | |
|
|
2427 | #if EV_CHILD_ENABLE |
|
|
2428 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2429 | { |
|
|
2430 | ev_ref (EV_A); /* child watcher */ |
|
|
2431 | ev_signal_stop (EV_A_ &childev); |
|
|
2432 | } |
|
|
2433 | #endif |
1676 | |
2434 | |
1677 | if (ev_is_active (&pipe_w)) |
2435 | if (ev_is_active (&pipe_w)) |
1678 | { |
2436 | { |
1679 | /*ev_ref (EV_A);*/ |
2437 | /*ev_ref (EV_A);*/ |
1680 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2438 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1681 | |
2439 | |
1682 | #if EV_USE_EVENTFD |
|
|
1683 | if (evfd >= 0) |
|
|
1684 | close (evfd); |
|
|
1685 | #endif |
|
|
1686 | |
|
|
1687 | if (evpipe [0] >= 0) |
|
|
1688 | { |
|
|
1689 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2440 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1690 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2441 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1691 | } |
|
|
1692 | } |
2442 | } |
1693 | |
2443 | |
1694 | #if EV_USE_SIGNALFD |
2444 | #if EV_USE_SIGNALFD |
1695 | if (ev_is_active (&sigfd_w)) |
2445 | if (ev_is_active (&sigfd_w)) |
1696 | close (sigfd); |
2446 | close (sigfd); |
… | |
… | |
1702 | #endif |
2452 | #endif |
1703 | |
2453 | |
1704 | if (backend_fd >= 0) |
2454 | if (backend_fd >= 0) |
1705 | close (backend_fd); |
2455 | close (backend_fd); |
1706 | |
2456 | |
|
|
2457 | #if EV_USE_IOCP |
|
|
2458 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2459 | #endif |
1707 | #if EV_USE_PORT |
2460 | #if EV_USE_PORT |
1708 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2461 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1709 | #endif |
2462 | #endif |
1710 | #if EV_USE_KQUEUE |
2463 | #if EV_USE_KQUEUE |
1711 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2464 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1738 | array_free (periodic, EMPTY); |
2491 | array_free (periodic, EMPTY); |
1739 | #endif |
2492 | #endif |
1740 | #if EV_FORK_ENABLE |
2493 | #if EV_FORK_ENABLE |
1741 | array_free (fork, EMPTY); |
2494 | array_free (fork, EMPTY); |
1742 | #endif |
2495 | #endif |
|
|
2496 | #if EV_CLEANUP_ENABLE |
|
|
2497 | array_free (cleanup, EMPTY); |
|
|
2498 | #endif |
1743 | array_free (prepare, EMPTY); |
2499 | array_free (prepare, EMPTY); |
1744 | array_free (check, EMPTY); |
2500 | array_free (check, EMPTY); |
1745 | #if EV_ASYNC_ENABLE |
2501 | #if EV_ASYNC_ENABLE |
1746 | array_free (async, EMPTY); |
2502 | array_free (async, EMPTY); |
1747 | #endif |
2503 | #endif |
1748 | |
2504 | |
1749 | backend = 0; |
2505 | backend = 0; |
|
|
2506 | |
|
|
2507 | #if EV_MULTIPLICITY |
|
|
2508 | if (ev_is_default_loop (EV_A)) |
|
|
2509 | #endif |
|
|
2510 | ev_default_loop_ptr = 0; |
|
|
2511 | #if EV_MULTIPLICITY |
|
|
2512 | else |
|
|
2513 | ev_free (EV_A); |
|
|
2514 | #endif |
1750 | } |
2515 | } |
1751 | |
2516 | |
1752 | #if EV_USE_INOTIFY |
2517 | #if EV_USE_INOTIFY |
1753 | inline_size void infy_fork (EV_P); |
2518 | inline_size void infy_fork (EV_P); |
1754 | #endif |
2519 | #endif |
… | |
… | |
1767 | #endif |
2532 | #endif |
1768 | #if EV_USE_INOTIFY |
2533 | #if EV_USE_INOTIFY |
1769 | infy_fork (EV_A); |
2534 | infy_fork (EV_A); |
1770 | #endif |
2535 | #endif |
1771 | |
2536 | |
|
|
2537 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1772 | if (ev_is_active (&pipe_w)) |
2538 | if (ev_is_active (&pipe_w)) |
1773 | { |
2539 | { |
1774 | /* this "locks" the handlers against writing to the pipe */ |
2540 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1775 | /* while we modify the fd vars */ |
|
|
1776 | sig_pending = 1; |
|
|
1777 | #if EV_ASYNC_ENABLE |
|
|
1778 | async_pending = 1; |
|
|
1779 | #endif |
|
|
1780 | |
2541 | |
1781 | ev_ref (EV_A); |
2542 | ev_ref (EV_A); |
1782 | ev_io_stop (EV_A_ &pipe_w); |
2543 | ev_io_stop (EV_A_ &pipe_w); |
1783 | |
2544 | |
1784 | #if EV_USE_EVENTFD |
|
|
1785 | if (evfd >= 0) |
|
|
1786 | close (evfd); |
|
|
1787 | #endif |
|
|
1788 | |
|
|
1789 | if (evpipe [0] >= 0) |
2545 | if (evpipe [0] >= 0) |
1790 | { |
|
|
1791 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2546 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1792 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1793 | } |
|
|
1794 | |
2547 | |
1795 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1796 | evpipe_init (EV_A); |
2548 | evpipe_init (EV_A); |
1797 | /* now iterate over everything, in case we missed something */ |
2549 | /* iterate over everything, in case we missed something before */ |
1798 | pipecb (EV_A_ &pipe_w, EV_READ); |
2550 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1799 | #endif |
|
|
1800 | } |
2551 | } |
|
|
2552 | #endif |
1801 | |
2553 | |
1802 | postfork = 0; |
2554 | postfork = 0; |
1803 | } |
2555 | } |
1804 | |
2556 | |
1805 | #if EV_MULTIPLICITY |
2557 | #if EV_MULTIPLICITY |
1806 | |
2558 | |
1807 | struct ev_loop * |
2559 | struct ev_loop * ecb_cold |
1808 | ev_loop_new (unsigned int flags) |
2560 | ev_loop_new (unsigned int flags) EV_THROW |
1809 | { |
2561 | { |
1810 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2562 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1811 | |
2563 | |
1812 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2564 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1813 | loop_init (EV_A_ flags); |
2565 | loop_init (EV_A_ flags); |
1814 | |
2566 | |
1815 | if (ev_backend (EV_A)) |
2567 | if (ev_backend (EV_A)) |
1816 | return EV_A; |
2568 | return EV_A; |
1817 | |
2569 | |
|
|
2570 | ev_free (EV_A); |
1818 | return 0; |
2571 | return 0; |
1819 | } |
2572 | } |
1820 | |
2573 | |
1821 | void |
|
|
1822 | ev_loop_destroy (EV_P) |
|
|
1823 | { |
|
|
1824 | loop_destroy (EV_A); |
|
|
1825 | ev_free (loop); |
|
|
1826 | } |
|
|
1827 | |
|
|
1828 | void |
|
|
1829 | ev_loop_fork (EV_P) |
|
|
1830 | { |
|
|
1831 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1832 | } |
|
|
1833 | #endif /* multiplicity */ |
2574 | #endif /* multiplicity */ |
1834 | |
2575 | |
1835 | #if EV_VERIFY |
2576 | #if EV_VERIFY |
1836 | static void noinline |
2577 | static void noinline ecb_cold |
1837 | verify_watcher (EV_P_ W w) |
2578 | verify_watcher (EV_P_ W w) |
1838 | { |
2579 | { |
1839 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2580 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1840 | |
2581 | |
1841 | if (w->pending) |
2582 | if (w->pending) |
1842 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2583 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1843 | } |
2584 | } |
1844 | |
2585 | |
1845 | static void noinline |
2586 | static void noinline ecb_cold |
1846 | verify_heap (EV_P_ ANHE *heap, int N) |
2587 | verify_heap (EV_P_ ANHE *heap, int N) |
1847 | { |
2588 | { |
1848 | int i; |
2589 | int i; |
1849 | |
2590 | |
1850 | for (i = HEAP0; i < N + HEAP0; ++i) |
2591 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1855 | |
2596 | |
1856 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2597 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1857 | } |
2598 | } |
1858 | } |
2599 | } |
1859 | |
2600 | |
1860 | static void noinline |
2601 | static void noinline ecb_cold |
1861 | array_verify (EV_P_ W *ws, int cnt) |
2602 | array_verify (EV_P_ W *ws, int cnt) |
1862 | { |
2603 | { |
1863 | while (cnt--) |
2604 | while (cnt--) |
1864 | { |
2605 | { |
1865 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2606 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1867 | } |
2608 | } |
1868 | } |
2609 | } |
1869 | #endif |
2610 | #endif |
1870 | |
2611 | |
1871 | #if EV_FEATURE_API |
2612 | #if EV_FEATURE_API |
1872 | void |
2613 | void ecb_cold |
1873 | ev_loop_verify (EV_P) |
2614 | ev_verify (EV_P) EV_THROW |
1874 | { |
2615 | { |
1875 | #if EV_VERIFY |
2616 | #if EV_VERIFY |
1876 | int i; |
2617 | int i; |
1877 | WL w; |
2618 | WL w, w2; |
1878 | |
2619 | |
1879 | assert (activecnt >= -1); |
2620 | assert (activecnt >= -1); |
1880 | |
2621 | |
1881 | assert (fdchangemax >= fdchangecnt); |
2622 | assert (fdchangemax >= fdchangecnt); |
1882 | for (i = 0; i < fdchangecnt; ++i) |
2623 | for (i = 0; i < fdchangecnt; ++i) |
1883 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2624 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1884 | |
2625 | |
1885 | assert (anfdmax >= 0); |
2626 | assert (anfdmax >= 0); |
1886 | for (i = 0; i < anfdmax; ++i) |
2627 | for (i = 0; i < anfdmax; ++i) |
|
|
2628 | { |
|
|
2629 | int j = 0; |
|
|
2630 | |
1887 | for (w = anfds [i].head; w; w = w->next) |
2631 | for (w = w2 = anfds [i].head; w; w = w->next) |
1888 | { |
2632 | { |
1889 | verify_watcher (EV_A_ (W)w); |
2633 | verify_watcher (EV_A_ (W)w); |
|
|
2634 | |
|
|
2635 | if (j++ & 1) |
|
|
2636 | { |
|
|
2637 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2638 | w2 = w2->next; |
|
|
2639 | } |
|
|
2640 | |
1890 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2641 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1891 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2642 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1892 | } |
2643 | } |
|
|
2644 | } |
1893 | |
2645 | |
1894 | assert (timermax >= timercnt); |
2646 | assert (timermax >= timercnt); |
1895 | verify_heap (EV_A_ timers, timercnt); |
2647 | verify_heap (EV_A_ timers, timercnt); |
1896 | |
2648 | |
1897 | #if EV_PERIODIC_ENABLE |
2649 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1912 | #if EV_FORK_ENABLE |
2664 | #if EV_FORK_ENABLE |
1913 | assert (forkmax >= forkcnt); |
2665 | assert (forkmax >= forkcnt); |
1914 | array_verify (EV_A_ (W *)forks, forkcnt); |
2666 | array_verify (EV_A_ (W *)forks, forkcnt); |
1915 | #endif |
2667 | #endif |
1916 | |
2668 | |
|
|
2669 | #if EV_CLEANUP_ENABLE |
|
|
2670 | assert (cleanupmax >= cleanupcnt); |
|
|
2671 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2672 | #endif |
|
|
2673 | |
1917 | #if EV_ASYNC_ENABLE |
2674 | #if EV_ASYNC_ENABLE |
1918 | assert (asyncmax >= asynccnt); |
2675 | assert (asyncmax >= asynccnt); |
1919 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2676 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1920 | #endif |
2677 | #endif |
1921 | |
2678 | |
… | |
… | |
1938 | #endif |
2695 | #endif |
1939 | } |
2696 | } |
1940 | #endif |
2697 | #endif |
1941 | |
2698 | |
1942 | #if EV_MULTIPLICITY |
2699 | #if EV_MULTIPLICITY |
1943 | struct ev_loop * |
2700 | struct ev_loop * ecb_cold |
1944 | ev_default_loop_init (unsigned int flags) |
|
|
1945 | #else |
2701 | #else |
1946 | int |
2702 | int |
|
|
2703 | #endif |
1947 | ev_default_loop (unsigned int flags) |
2704 | ev_default_loop (unsigned int flags) EV_THROW |
1948 | #endif |
|
|
1949 | { |
2705 | { |
1950 | if (!ev_default_loop_ptr) |
2706 | if (!ev_default_loop_ptr) |
1951 | { |
2707 | { |
1952 | #if EV_MULTIPLICITY |
2708 | #if EV_MULTIPLICITY |
1953 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2709 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1972 | |
2728 | |
1973 | return ev_default_loop_ptr; |
2729 | return ev_default_loop_ptr; |
1974 | } |
2730 | } |
1975 | |
2731 | |
1976 | void |
2732 | void |
1977 | ev_default_destroy (void) |
2733 | ev_loop_fork (EV_P) EV_THROW |
1978 | { |
2734 | { |
1979 | #if EV_MULTIPLICITY |
2735 | postfork = 1; |
1980 | EV_P = ev_default_loop_ptr; |
|
|
1981 | #endif |
|
|
1982 | |
|
|
1983 | ev_default_loop_ptr = 0; |
|
|
1984 | |
|
|
1985 | #if EV_CHILD_ENABLE |
|
|
1986 | ev_ref (EV_A); /* child watcher */ |
|
|
1987 | ev_signal_stop (EV_A_ &childev); |
|
|
1988 | #endif |
|
|
1989 | |
|
|
1990 | loop_destroy (EV_A); |
|
|
1991 | } |
|
|
1992 | |
|
|
1993 | void |
|
|
1994 | ev_default_fork (void) |
|
|
1995 | { |
|
|
1996 | #if EV_MULTIPLICITY |
|
|
1997 | EV_P = ev_default_loop_ptr; |
|
|
1998 | #endif |
|
|
1999 | |
|
|
2000 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
2001 | } |
2736 | } |
2002 | |
2737 | |
2003 | /*****************************************************************************/ |
2738 | /*****************************************************************************/ |
2004 | |
2739 | |
2005 | void |
2740 | void |
… | |
… | |
2007 | { |
2742 | { |
2008 | EV_CB_INVOKE ((W)w, revents); |
2743 | EV_CB_INVOKE ((W)w, revents); |
2009 | } |
2744 | } |
2010 | |
2745 | |
2011 | unsigned int |
2746 | unsigned int |
2012 | ev_pending_count (EV_P) |
2747 | ev_pending_count (EV_P) EV_THROW |
2013 | { |
2748 | { |
2014 | int pri; |
2749 | int pri; |
2015 | unsigned int count = 0; |
2750 | unsigned int count = 0; |
2016 | |
2751 | |
2017 | for (pri = NUMPRI; pri--; ) |
2752 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2021 | } |
2756 | } |
2022 | |
2757 | |
2023 | void noinline |
2758 | void noinline |
2024 | ev_invoke_pending (EV_P) |
2759 | ev_invoke_pending (EV_P) |
2025 | { |
2760 | { |
2026 | int pri; |
2761 | pendingpri = NUMPRI; |
2027 | |
2762 | |
2028 | for (pri = NUMPRI; pri--; ) |
2763 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2764 | { |
|
|
2765 | --pendingpri; |
|
|
2766 | |
2029 | while (pendingcnt [pri]) |
2767 | while (pendingcnt [pendingpri]) |
2030 | { |
2768 | { |
2031 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2769 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2032 | |
2770 | |
2033 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2034 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2035 | |
|
|
2036 | p->w->pending = 0; |
2771 | p->w->pending = 0; |
2037 | EV_CB_INVOKE (p->w, p->events); |
2772 | EV_CB_INVOKE (p->w, p->events); |
2038 | EV_FREQUENT_CHECK; |
2773 | EV_FREQUENT_CHECK; |
2039 | } |
2774 | } |
|
|
2775 | } |
2040 | } |
2776 | } |
2041 | |
2777 | |
2042 | #if EV_IDLE_ENABLE |
2778 | #if EV_IDLE_ENABLE |
2043 | /* make idle watchers pending. this handles the "call-idle */ |
2779 | /* make idle watchers pending. this handles the "call-idle */ |
2044 | /* only when higher priorities are idle" logic */ |
2780 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2096 | EV_FREQUENT_CHECK; |
2832 | EV_FREQUENT_CHECK; |
2097 | feed_reverse (EV_A_ (W)w); |
2833 | feed_reverse (EV_A_ (W)w); |
2098 | } |
2834 | } |
2099 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2835 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2100 | |
2836 | |
2101 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2837 | feed_reverse_done (EV_A_ EV_TIMER); |
2102 | } |
2838 | } |
2103 | } |
2839 | } |
2104 | |
2840 | |
2105 | #if EV_PERIODIC_ENABLE |
2841 | #if EV_PERIODIC_ENABLE |
|
|
2842 | |
|
|
2843 | static void noinline |
|
|
2844 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2845 | { |
|
|
2846 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2847 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2848 | |
|
|
2849 | /* the above almost always errs on the low side */ |
|
|
2850 | while (at <= ev_rt_now) |
|
|
2851 | { |
|
|
2852 | ev_tstamp nat = at + w->interval; |
|
|
2853 | |
|
|
2854 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2855 | if (expect_false (nat == at)) |
|
|
2856 | { |
|
|
2857 | at = ev_rt_now; |
|
|
2858 | break; |
|
|
2859 | } |
|
|
2860 | |
|
|
2861 | at = nat; |
|
|
2862 | } |
|
|
2863 | |
|
|
2864 | ev_at (w) = at; |
|
|
2865 | } |
|
|
2866 | |
2106 | /* make periodics pending */ |
2867 | /* make periodics pending */ |
2107 | inline_size void |
2868 | inline_size void |
2108 | periodics_reify (EV_P) |
2869 | periodics_reify (EV_P) |
2109 | { |
2870 | { |
2110 | EV_FREQUENT_CHECK; |
2871 | EV_FREQUENT_CHECK; |
2111 | |
2872 | |
2112 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2873 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2113 | { |
2874 | { |
2114 | int feed_count = 0; |
|
|
2115 | |
|
|
2116 | do |
2875 | do |
2117 | { |
2876 | { |
2118 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2877 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2119 | |
2878 | |
2120 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2879 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2129 | ANHE_at_cache (periodics [HEAP0]); |
2888 | ANHE_at_cache (periodics [HEAP0]); |
2130 | downheap (periodics, periodiccnt, HEAP0); |
2889 | downheap (periodics, periodiccnt, HEAP0); |
2131 | } |
2890 | } |
2132 | else if (w->interval) |
2891 | else if (w->interval) |
2133 | { |
2892 | { |
2134 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2893 | periodic_recalc (EV_A_ w); |
2135 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2136 | /* this might happen because of floating point inexactness */ |
|
|
2137 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2138 | { |
|
|
2139 | ev_at (w) += w->interval; |
|
|
2140 | |
|
|
2141 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2142 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2143 | /* has effectively asked to get triggered more often than possible */ |
|
|
2144 | if (ev_at (w) < ev_rt_now) |
|
|
2145 | ev_at (w) = ev_rt_now; |
|
|
2146 | } |
|
|
2147 | |
|
|
2148 | ANHE_at_cache (periodics [HEAP0]); |
2894 | ANHE_at_cache (periodics [HEAP0]); |
2149 | downheap (periodics, periodiccnt, HEAP0); |
2895 | downheap (periodics, periodiccnt, HEAP0); |
2150 | } |
2896 | } |
2151 | else |
2897 | else |
2152 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2898 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2159 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2905 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2160 | } |
2906 | } |
2161 | } |
2907 | } |
2162 | |
2908 | |
2163 | /* simply recalculate all periodics */ |
2909 | /* simply recalculate all periodics */ |
2164 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2910 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2165 | static void noinline |
2911 | static void noinline ecb_cold |
2166 | periodics_reschedule (EV_P) |
2912 | periodics_reschedule (EV_P) |
2167 | { |
2913 | { |
2168 | int i; |
2914 | int i; |
2169 | |
2915 | |
2170 | /* adjust periodics after time jump */ |
2916 | /* adjust periodics after time jump */ |
… | |
… | |
2173 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2919 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2174 | |
2920 | |
2175 | if (w->reschedule_cb) |
2921 | if (w->reschedule_cb) |
2176 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2922 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2177 | else if (w->interval) |
2923 | else if (w->interval) |
2178 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2924 | periodic_recalc (EV_A_ w); |
2179 | |
2925 | |
2180 | ANHE_at_cache (periodics [i]); |
2926 | ANHE_at_cache (periodics [i]); |
2181 | } |
2927 | } |
2182 | |
2928 | |
2183 | reheap (periodics, periodiccnt); |
2929 | reheap (periodics, periodiccnt); |
2184 | } |
2930 | } |
2185 | #endif |
2931 | #endif |
2186 | |
2932 | |
2187 | /* adjust all timers by a given offset */ |
2933 | /* adjust all timers by a given offset */ |
2188 | static void noinline |
2934 | static void noinline ecb_cold |
2189 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2935 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2190 | { |
2936 | { |
2191 | int i; |
2937 | int i; |
2192 | |
2938 | |
2193 | for (i = 0; i < timercnt; ++i) |
2939 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2230 | * doesn't hurt either as we only do this on time-jumps or |
2976 | * doesn't hurt either as we only do this on time-jumps or |
2231 | * in the unlikely event of having been preempted here. |
2977 | * in the unlikely event of having been preempted here. |
2232 | */ |
2978 | */ |
2233 | for (i = 4; --i; ) |
2979 | for (i = 4; --i; ) |
2234 | { |
2980 | { |
|
|
2981 | ev_tstamp diff; |
2235 | rtmn_diff = ev_rt_now - mn_now; |
2982 | rtmn_diff = ev_rt_now - mn_now; |
2236 | |
2983 | |
|
|
2984 | diff = odiff - rtmn_diff; |
|
|
2985 | |
2237 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2986 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2238 | return; /* all is well */ |
2987 | return; /* all is well */ |
2239 | |
2988 | |
2240 | ev_rt_now = ev_time (); |
2989 | ev_rt_now = ev_time (); |
2241 | mn_now = get_clock (); |
2990 | mn_now = get_clock (); |
2242 | now_floor = mn_now; |
2991 | now_floor = mn_now; |
… | |
… | |
2264 | |
3013 | |
2265 | mn_now = ev_rt_now; |
3014 | mn_now = ev_rt_now; |
2266 | } |
3015 | } |
2267 | } |
3016 | } |
2268 | |
3017 | |
2269 | void |
3018 | int |
2270 | ev_loop (EV_P_ int flags) |
3019 | ev_run (EV_P_ int flags) |
2271 | { |
3020 | { |
2272 | #if EV_FEATURE_API |
3021 | #if EV_FEATURE_API |
2273 | ++loop_depth; |
3022 | ++loop_depth; |
2274 | #endif |
3023 | #endif |
2275 | |
3024 | |
2276 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
3025 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2277 | |
3026 | |
2278 | loop_done = EVUNLOOP_CANCEL; |
3027 | loop_done = EVBREAK_CANCEL; |
2279 | |
3028 | |
2280 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3029 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2281 | |
3030 | |
2282 | do |
3031 | do |
2283 | { |
3032 | { |
2284 | #if EV_VERIFY >= 2 |
3033 | #if EV_VERIFY >= 2 |
2285 | ev_loop_verify (EV_A); |
3034 | ev_verify (EV_A); |
2286 | #endif |
3035 | #endif |
2287 | |
3036 | |
2288 | #ifndef _WIN32 |
3037 | #ifndef _WIN32 |
2289 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3038 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2290 | if (expect_false (getpid () != curpid)) |
3039 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2326 | /* calculate blocking time */ |
3075 | /* calculate blocking time */ |
2327 | { |
3076 | { |
2328 | ev_tstamp waittime = 0.; |
3077 | ev_tstamp waittime = 0.; |
2329 | ev_tstamp sleeptime = 0.; |
3078 | ev_tstamp sleeptime = 0.; |
2330 | |
3079 | |
|
|
3080 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3081 | ev_tstamp prev_mn_now = mn_now; |
|
|
3082 | |
|
|
3083 | /* update time to cancel out callback processing overhead */ |
|
|
3084 | time_update (EV_A_ 1e100); |
|
|
3085 | |
|
|
3086 | /* from now on, we want a pipe-wake-up */ |
|
|
3087 | pipe_write_wanted = 1; |
|
|
3088 | |
|
|
3089 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3090 | |
2331 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3091 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2332 | { |
3092 | { |
2333 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2334 | ev_tstamp prev_mn_now = mn_now; |
|
|
2335 | |
|
|
2336 | /* update time to cancel out callback processing overhead */ |
|
|
2337 | time_update (EV_A_ 1e100); |
|
|
2338 | |
|
|
2339 | waittime = MAX_BLOCKTIME; |
3093 | waittime = MAX_BLOCKTIME; |
2340 | |
3094 | |
2341 | if (timercnt) |
3095 | if (timercnt) |
2342 | { |
3096 | { |
2343 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3097 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2344 | if (waittime > to) waittime = to; |
3098 | if (waittime > to) waittime = to; |
2345 | } |
3099 | } |
2346 | |
3100 | |
2347 | #if EV_PERIODIC_ENABLE |
3101 | #if EV_PERIODIC_ENABLE |
2348 | if (periodiccnt) |
3102 | if (periodiccnt) |
2349 | { |
3103 | { |
2350 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3104 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2351 | if (waittime > to) waittime = to; |
3105 | if (waittime > to) waittime = to; |
2352 | } |
3106 | } |
2353 | #endif |
3107 | #endif |
2354 | |
3108 | |
2355 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3109 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2356 | if (expect_false (waittime < timeout_blocktime)) |
3110 | if (expect_false (waittime < timeout_blocktime)) |
2357 | waittime = timeout_blocktime; |
3111 | waittime = timeout_blocktime; |
|
|
3112 | |
|
|
3113 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3114 | /* to pass a minimum nonzero value to the backend */ |
|
|
3115 | if (expect_false (waittime < backend_mintime)) |
|
|
3116 | waittime = backend_mintime; |
2358 | |
3117 | |
2359 | /* extra check because io_blocktime is commonly 0 */ |
3118 | /* extra check because io_blocktime is commonly 0 */ |
2360 | if (expect_false (io_blocktime)) |
3119 | if (expect_false (io_blocktime)) |
2361 | { |
3120 | { |
2362 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3121 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2363 | |
3122 | |
2364 | if (sleeptime > waittime - backend_fudge) |
3123 | if (sleeptime > waittime - backend_mintime) |
2365 | sleeptime = waittime - backend_fudge; |
3124 | sleeptime = waittime - backend_mintime; |
2366 | |
3125 | |
2367 | if (expect_true (sleeptime > 0.)) |
3126 | if (expect_true (sleeptime > 0.)) |
2368 | { |
3127 | { |
2369 | ev_sleep (sleeptime); |
3128 | ev_sleep (sleeptime); |
2370 | waittime -= sleeptime; |
3129 | waittime -= sleeptime; |
… | |
… | |
2373 | } |
3132 | } |
2374 | |
3133 | |
2375 | #if EV_FEATURE_API |
3134 | #if EV_FEATURE_API |
2376 | ++loop_count; |
3135 | ++loop_count; |
2377 | #endif |
3136 | #endif |
2378 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3137 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2379 | backend_poll (EV_A_ waittime); |
3138 | backend_poll (EV_A_ waittime); |
2380 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3139 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3140 | |
|
|
3141 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3142 | |
|
|
3143 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3144 | if (pipe_write_skipped) |
|
|
3145 | { |
|
|
3146 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3147 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3148 | } |
|
|
3149 | |
2381 | |
3150 | |
2382 | /* update ev_rt_now, do magic */ |
3151 | /* update ev_rt_now, do magic */ |
2383 | time_update (EV_A_ waittime + sleeptime); |
3152 | time_update (EV_A_ waittime + sleeptime); |
2384 | } |
3153 | } |
2385 | |
3154 | |
… | |
… | |
2403 | EV_INVOKE_PENDING; |
3172 | EV_INVOKE_PENDING; |
2404 | } |
3173 | } |
2405 | while (expect_true ( |
3174 | while (expect_true ( |
2406 | activecnt |
3175 | activecnt |
2407 | && !loop_done |
3176 | && !loop_done |
2408 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3177 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2409 | )); |
3178 | )); |
2410 | |
3179 | |
2411 | if (loop_done == EVUNLOOP_ONE) |
3180 | if (loop_done == EVBREAK_ONE) |
2412 | loop_done = EVUNLOOP_CANCEL; |
3181 | loop_done = EVBREAK_CANCEL; |
2413 | |
3182 | |
2414 | #if EV_FEATURE_API |
3183 | #if EV_FEATURE_API |
2415 | --loop_depth; |
3184 | --loop_depth; |
2416 | #endif |
3185 | #endif |
|
|
3186 | |
|
|
3187 | return activecnt; |
2417 | } |
3188 | } |
2418 | |
3189 | |
2419 | void |
3190 | void |
2420 | ev_unloop (EV_P_ int how) |
3191 | ev_break (EV_P_ int how) EV_THROW |
2421 | { |
3192 | { |
2422 | loop_done = how; |
3193 | loop_done = how; |
2423 | } |
3194 | } |
2424 | |
3195 | |
2425 | void |
3196 | void |
2426 | ev_ref (EV_P) |
3197 | ev_ref (EV_P) EV_THROW |
2427 | { |
3198 | { |
2428 | ++activecnt; |
3199 | ++activecnt; |
2429 | } |
3200 | } |
2430 | |
3201 | |
2431 | void |
3202 | void |
2432 | ev_unref (EV_P) |
3203 | ev_unref (EV_P) EV_THROW |
2433 | { |
3204 | { |
2434 | --activecnt; |
3205 | --activecnt; |
2435 | } |
3206 | } |
2436 | |
3207 | |
2437 | void |
3208 | void |
2438 | ev_now_update (EV_P) |
3209 | ev_now_update (EV_P) EV_THROW |
2439 | { |
3210 | { |
2440 | time_update (EV_A_ 1e100); |
3211 | time_update (EV_A_ 1e100); |
2441 | } |
3212 | } |
2442 | |
3213 | |
2443 | void |
3214 | void |
2444 | ev_suspend (EV_P) |
3215 | ev_suspend (EV_P) EV_THROW |
2445 | { |
3216 | { |
2446 | ev_now_update (EV_A); |
3217 | ev_now_update (EV_A); |
2447 | } |
3218 | } |
2448 | |
3219 | |
2449 | void |
3220 | void |
2450 | ev_resume (EV_P) |
3221 | ev_resume (EV_P) EV_THROW |
2451 | { |
3222 | { |
2452 | ev_tstamp mn_prev = mn_now; |
3223 | ev_tstamp mn_prev = mn_now; |
2453 | |
3224 | |
2454 | ev_now_update (EV_A); |
3225 | ev_now_update (EV_A); |
2455 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3226 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2494 | w->pending = 0; |
3265 | w->pending = 0; |
2495 | } |
3266 | } |
2496 | } |
3267 | } |
2497 | |
3268 | |
2498 | int |
3269 | int |
2499 | ev_clear_pending (EV_P_ void *w) |
3270 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2500 | { |
3271 | { |
2501 | W w_ = (W)w; |
3272 | W w_ = (W)w; |
2502 | int pending = w_->pending; |
3273 | int pending = w_->pending; |
2503 | |
3274 | |
2504 | if (expect_true (pending)) |
3275 | if (expect_true (pending)) |
… | |
… | |
2537 | } |
3308 | } |
2538 | |
3309 | |
2539 | /*****************************************************************************/ |
3310 | /*****************************************************************************/ |
2540 | |
3311 | |
2541 | void noinline |
3312 | void noinline |
2542 | ev_io_start (EV_P_ ev_io *w) |
3313 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2543 | { |
3314 | { |
2544 | int fd = w->fd; |
3315 | int fd = w->fd; |
2545 | |
3316 | |
2546 | if (expect_false (ev_is_active (w))) |
3317 | if (expect_false (ev_is_active (w))) |
2547 | return; |
3318 | return; |
… | |
… | |
2553 | |
3324 | |
2554 | ev_start (EV_A_ (W)w, 1); |
3325 | ev_start (EV_A_ (W)w, 1); |
2555 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3326 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2556 | wlist_add (&anfds[fd].head, (WL)w); |
3327 | wlist_add (&anfds[fd].head, (WL)w); |
2557 | |
3328 | |
|
|
3329 | /* common bug, apparently */ |
|
|
3330 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3331 | |
2558 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3332 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2559 | w->events &= ~EV__IOFDSET; |
3333 | w->events &= ~EV__IOFDSET; |
2560 | |
3334 | |
2561 | EV_FREQUENT_CHECK; |
3335 | EV_FREQUENT_CHECK; |
2562 | } |
3336 | } |
2563 | |
3337 | |
2564 | void noinline |
3338 | void noinline |
2565 | ev_io_stop (EV_P_ ev_io *w) |
3339 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2566 | { |
3340 | { |
2567 | clear_pending (EV_A_ (W)w); |
3341 | clear_pending (EV_A_ (W)w); |
2568 | if (expect_false (!ev_is_active (w))) |
3342 | if (expect_false (!ev_is_active (w))) |
2569 | return; |
3343 | return; |
2570 | |
3344 | |
… | |
… | |
2573 | EV_FREQUENT_CHECK; |
3347 | EV_FREQUENT_CHECK; |
2574 | |
3348 | |
2575 | wlist_del (&anfds[w->fd].head, (WL)w); |
3349 | wlist_del (&anfds[w->fd].head, (WL)w); |
2576 | ev_stop (EV_A_ (W)w); |
3350 | ev_stop (EV_A_ (W)w); |
2577 | |
3351 | |
2578 | fd_change (EV_A_ w->fd, 1); |
3352 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2579 | |
3353 | |
2580 | EV_FREQUENT_CHECK; |
3354 | EV_FREQUENT_CHECK; |
2581 | } |
3355 | } |
2582 | |
3356 | |
2583 | void noinline |
3357 | void noinline |
2584 | ev_timer_start (EV_P_ ev_timer *w) |
3358 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2585 | { |
3359 | { |
2586 | if (expect_false (ev_is_active (w))) |
3360 | if (expect_false (ev_is_active (w))) |
2587 | return; |
3361 | return; |
2588 | |
3362 | |
2589 | ev_at (w) += mn_now; |
3363 | ev_at (w) += mn_now; |
… | |
… | |
2603 | |
3377 | |
2604 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3378 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2605 | } |
3379 | } |
2606 | |
3380 | |
2607 | void noinline |
3381 | void noinline |
2608 | ev_timer_stop (EV_P_ ev_timer *w) |
3382 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2609 | { |
3383 | { |
2610 | clear_pending (EV_A_ (W)w); |
3384 | clear_pending (EV_A_ (W)w); |
2611 | if (expect_false (!ev_is_active (w))) |
3385 | if (expect_false (!ev_is_active (w))) |
2612 | return; |
3386 | return; |
2613 | |
3387 | |
… | |
… | |
2633 | |
3407 | |
2634 | EV_FREQUENT_CHECK; |
3408 | EV_FREQUENT_CHECK; |
2635 | } |
3409 | } |
2636 | |
3410 | |
2637 | void noinline |
3411 | void noinline |
2638 | ev_timer_again (EV_P_ ev_timer *w) |
3412 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2639 | { |
3413 | { |
2640 | EV_FREQUENT_CHECK; |
3414 | EV_FREQUENT_CHECK; |
|
|
3415 | |
|
|
3416 | clear_pending (EV_A_ (W)w); |
2641 | |
3417 | |
2642 | if (ev_is_active (w)) |
3418 | if (ev_is_active (w)) |
2643 | { |
3419 | { |
2644 | if (w->repeat) |
3420 | if (w->repeat) |
2645 | { |
3421 | { |
… | |
… | |
2658 | |
3434 | |
2659 | EV_FREQUENT_CHECK; |
3435 | EV_FREQUENT_CHECK; |
2660 | } |
3436 | } |
2661 | |
3437 | |
2662 | ev_tstamp |
3438 | ev_tstamp |
2663 | ev_timer_remaining (EV_P_ ev_timer *w) |
3439 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2664 | { |
3440 | { |
2665 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3441 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2666 | } |
3442 | } |
2667 | |
3443 | |
2668 | #if EV_PERIODIC_ENABLE |
3444 | #if EV_PERIODIC_ENABLE |
2669 | void noinline |
3445 | void noinline |
2670 | ev_periodic_start (EV_P_ ev_periodic *w) |
3446 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2671 | { |
3447 | { |
2672 | if (expect_false (ev_is_active (w))) |
3448 | if (expect_false (ev_is_active (w))) |
2673 | return; |
3449 | return; |
2674 | |
3450 | |
2675 | if (w->reschedule_cb) |
3451 | if (w->reschedule_cb) |
2676 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3452 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2677 | else if (w->interval) |
3453 | else if (w->interval) |
2678 | { |
3454 | { |
2679 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3455 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2680 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3456 | periodic_recalc (EV_A_ w); |
2681 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2682 | } |
3457 | } |
2683 | else |
3458 | else |
2684 | ev_at (w) = w->offset; |
3459 | ev_at (w) = w->offset; |
2685 | |
3460 | |
2686 | EV_FREQUENT_CHECK; |
3461 | EV_FREQUENT_CHECK; |
… | |
… | |
2696 | |
3471 | |
2697 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3472 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2698 | } |
3473 | } |
2699 | |
3474 | |
2700 | void noinline |
3475 | void noinline |
2701 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3476 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2702 | { |
3477 | { |
2703 | clear_pending (EV_A_ (W)w); |
3478 | clear_pending (EV_A_ (W)w); |
2704 | if (expect_false (!ev_is_active (w))) |
3479 | if (expect_false (!ev_is_active (w))) |
2705 | return; |
3480 | return; |
2706 | |
3481 | |
… | |
… | |
2724 | |
3499 | |
2725 | EV_FREQUENT_CHECK; |
3500 | EV_FREQUENT_CHECK; |
2726 | } |
3501 | } |
2727 | |
3502 | |
2728 | void noinline |
3503 | void noinline |
2729 | ev_periodic_again (EV_P_ ev_periodic *w) |
3504 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2730 | { |
3505 | { |
2731 | /* TODO: use adjustheap and recalculation */ |
3506 | /* TODO: use adjustheap and recalculation */ |
2732 | ev_periodic_stop (EV_A_ w); |
3507 | ev_periodic_stop (EV_A_ w); |
2733 | ev_periodic_start (EV_A_ w); |
3508 | ev_periodic_start (EV_A_ w); |
2734 | } |
3509 | } |
… | |
… | |
2739 | #endif |
3514 | #endif |
2740 | |
3515 | |
2741 | #if EV_SIGNAL_ENABLE |
3516 | #if EV_SIGNAL_ENABLE |
2742 | |
3517 | |
2743 | void noinline |
3518 | void noinline |
2744 | ev_signal_start (EV_P_ ev_signal *w) |
3519 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2745 | { |
3520 | { |
2746 | if (expect_false (ev_is_active (w))) |
3521 | if (expect_false (ev_is_active (w))) |
2747 | return; |
3522 | return; |
2748 | |
3523 | |
2749 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3524 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2807 | sa.sa_handler = ev_sighandler; |
3582 | sa.sa_handler = ev_sighandler; |
2808 | sigfillset (&sa.sa_mask); |
3583 | sigfillset (&sa.sa_mask); |
2809 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3584 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2810 | sigaction (w->signum, &sa, 0); |
3585 | sigaction (w->signum, &sa, 0); |
2811 | |
3586 | |
|
|
3587 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3588 | { |
2812 | sigemptyset (&sa.sa_mask); |
3589 | sigemptyset (&sa.sa_mask); |
2813 | sigaddset (&sa.sa_mask, w->signum); |
3590 | sigaddset (&sa.sa_mask, w->signum); |
2814 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
3591 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3592 | } |
2815 | #endif |
3593 | #endif |
2816 | } |
3594 | } |
2817 | |
3595 | |
2818 | EV_FREQUENT_CHECK; |
3596 | EV_FREQUENT_CHECK; |
2819 | } |
3597 | } |
2820 | |
3598 | |
2821 | void noinline |
3599 | void noinline |
2822 | ev_signal_stop (EV_P_ ev_signal *w) |
3600 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2823 | { |
3601 | { |
2824 | clear_pending (EV_A_ (W)w); |
3602 | clear_pending (EV_A_ (W)w); |
2825 | if (expect_false (!ev_is_active (w))) |
3603 | if (expect_false (!ev_is_active (w))) |
2826 | return; |
3604 | return; |
2827 | |
3605 | |
… | |
… | |
2858 | #endif |
3636 | #endif |
2859 | |
3637 | |
2860 | #if EV_CHILD_ENABLE |
3638 | #if EV_CHILD_ENABLE |
2861 | |
3639 | |
2862 | void |
3640 | void |
2863 | ev_child_start (EV_P_ ev_child *w) |
3641 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2864 | { |
3642 | { |
2865 | #if EV_MULTIPLICITY |
3643 | #if EV_MULTIPLICITY |
2866 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3644 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2867 | #endif |
3645 | #endif |
2868 | if (expect_false (ev_is_active (w))) |
3646 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2875 | |
3653 | |
2876 | EV_FREQUENT_CHECK; |
3654 | EV_FREQUENT_CHECK; |
2877 | } |
3655 | } |
2878 | |
3656 | |
2879 | void |
3657 | void |
2880 | ev_child_stop (EV_P_ ev_child *w) |
3658 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2881 | { |
3659 | { |
2882 | clear_pending (EV_A_ (W)w); |
3660 | clear_pending (EV_A_ (W)w); |
2883 | if (expect_false (!ev_is_active (w))) |
3661 | if (expect_false (!ev_is_active (w))) |
2884 | return; |
3662 | return; |
2885 | |
3663 | |
… | |
… | |
2960 | if (!pend || pend == path) |
3738 | if (!pend || pend == path) |
2961 | break; |
3739 | break; |
2962 | |
3740 | |
2963 | *pend = 0; |
3741 | *pend = 0; |
2964 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3742 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2965 | } |
3743 | } |
2966 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3744 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2967 | } |
3745 | } |
2968 | } |
3746 | } |
2969 | |
3747 | |
2970 | if (w->wd >= 0) |
3748 | if (w->wd >= 0) |
… | |
… | |
3037 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3815 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3038 | ofs += sizeof (struct inotify_event) + ev->len; |
3816 | ofs += sizeof (struct inotify_event) + ev->len; |
3039 | } |
3817 | } |
3040 | } |
3818 | } |
3041 | |
3819 | |
3042 | inline_size unsigned int |
|
|
3043 | ev_linux_version (void) |
|
|
3044 | { |
|
|
3045 | struct utsname buf; |
|
|
3046 | unsigned int v; |
|
|
3047 | int i; |
|
|
3048 | char *p = buf.release; |
|
|
3049 | |
|
|
3050 | if (uname (&buf)) |
|
|
3051 | return 0; |
|
|
3052 | |
|
|
3053 | for (i = 3+1; --i; ) |
|
|
3054 | { |
|
|
3055 | unsigned int c = 0; |
|
|
3056 | |
|
|
3057 | for (;;) |
|
|
3058 | { |
|
|
3059 | if (*p >= '0' && *p <= '9') |
|
|
3060 | c = c * 10 + *p++ - '0'; |
|
|
3061 | else |
|
|
3062 | { |
|
|
3063 | p += *p == '.'; |
|
|
3064 | break; |
|
|
3065 | } |
|
|
3066 | } |
|
|
3067 | |
|
|
3068 | v = (v << 8) | c; |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | return v; |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | inline_size void |
3820 | inline_size void ecb_cold |
3075 | ev_check_2625 (EV_P) |
3821 | ev_check_2625 (EV_P) |
3076 | { |
3822 | { |
3077 | /* kernels < 2.6.25 are borked |
3823 | /* kernels < 2.6.25 are borked |
3078 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3824 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3079 | */ |
3825 | */ |
… | |
… | |
3084 | } |
3830 | } |
3085 | |
3831 | |
3086 | inline_size int |
3832 | inline_size int |
3087 | infy_newfd (void) |
3833 | infy_newfd (void) |
3088 | { |
3834 | { |
3089 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
3835 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3090 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3836 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3091 | if (fd >= 0) |
3837 | if (fd >= 0) |
3092 | return fd; |
3838 | return fd; |
3093 | #endif |
3839 | #endif |
3094 | return inotify_init (); |
3840 | return inotify_init (); |
… | |
… | |
3169 | #else |
3915 | #else |
3170 | # define EV_LSTAT(p,b) lstat (p, b) |
3916 | # define EV_LSTAT(p,b) lstat (p, b) |
3171 | #endif |
3917 | #endif |
3172 | |
3918 | |
3173 | void |
3919 | void |
3174 | ev_stat_stat (EV_P_ ev_stat *w) |
3920 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3175 | { |
3921 | { |
3176 | if (lstat (w->path, &w->attr) < 0) |
3922 | if (lstat (w->path, &w->attr) < 0) |
3177 | w->attr.st_nlink = 0; |
3923 | w->attr.st_nlink = 0; |
3178 | else if (!w->attr.st_nlink) |
3924 | else if (!w->attr.st_nlink) |
3179 | w->attr.st_nlink = 1; |
3925 | w->attr.st_nlink = 1; |
… | |
… | |
3218 | ev_feed_event (EV_A_ w, EV_STAT); |
3964 | ev_feed_event (EV_A_ w, EV_STAT); |
3219 | } |
3965 | } |
3220 | } |
3966 | } |
3221 | |
3967 | |
3222 | void |
3968 | void |
3223 | ev_stat_start (EV_P_ ev_stat *w) |
3969 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3224 | { |
3970 | { |
3225 | if (expect_false (ev_is_active (w))) |
3971 | if (expect_false (ev_is_active (w))) |
3226 | return; |
3972 | return; |
3227 | |
3973 | |
3228 | ev_stat_stat (EV_A_ w); |
3974 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3249 | |
3995 | |
3250 | EV_FREQUENT_CHECK; |
3996 | EV_FREQUENT_CHECK; |
3251 | } |
3997 | } |
3252 | |
3998 | |
3253 | void |
3999 | void |
3254 | ev_stat_stop (EV_P_ ev_stat *w) |
4000 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3255 | { |
4001 | { |
3256 | clear_pending (EV_A_ (W)w); |
4002 | clear_pending (EV_A_ (W)w); |
3257 | if (expect_false (!ev_is_active (w))) |
4003 | if (expect_false (!ev_is_active (w))) |
3258 | return; |
4004 | return; |
3259 | |
4005 | |
… | |
… | |
3275 | } |
4021 | } |
3276 | #endif |
4022 | #endif |
3277 | |
4023 | |
3278 | #if EV_IDLE_ENABLE |
4024 | #if EV_IDLE_ENABLE |
3279 | void |
4025 | void |
3280 | ev_idle_start (EV_P_ ev_idle *w) |
4026 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3281 | { |
4027 | { |
3282 | if (expect_false (ev_is_active (w))) |
4028 | if (expect_false (ev_is_active (w))) |
3283 | return; |
4029 | return; |
3284 | |
4030 | |
3285 | pri_adjust (EV_A_ (W)w); |
4031 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3298 | |
4044 | |
3299 | EV_FREQUENT_CHECK; |
4045 | EV_FREQUENT_CHECK; |
3300 | } |
4046 | } |
3301 | |
4047 | |
3302 | void |
4048 | void |
3303 | ev_idle_stop (EV_P_ ev_idle *w) |
4049 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3304 | { |
4050 | { |
3305 | clear_pending (EV_A_ (W)w); |
4051 | clear_pending (EV_A_ (W)w); |
3306 | if (expect_false (!ev_is_active (w))) |
4052 | if (expect_false (!ev_is_active (w))) |
3307 | return; |
4053 | return; |
3308 | |
4054 | |
… | |
… | |
3322 | } |
4068 | } |
3323 | #endif |
4069 | #endif |
3324 | |
4070 | |
3325 | #if EV_PREPARE_ENABLE |
4071 | #if EV_PREPARE_ENABLE |
3326 | void |
4072 | void |
3327 | ev_prepare_start (EV_P_ ev_prepare *w) |
4073 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3328 | { |
4074 | { |
3329 | if (expect_false (ev_is_active (w))) |
4075 | if (expect_false (ev_is_active (w))) |
3330 | return; |
4076 | return; |
3331 | |
4077 | |
3332 | EV_FREQUENT_CHECK; |
4078 | EV_FREQUENT_CHECK; |
… | |
… | |
3337 | |
4083 | |
3338 | EV_FREQUENT_CHECK; |
4084 | EV_FREQUENT_CHECK; |
3339 | } |
4085 | } |
3340 | |
4086 | |
3341 | void |
4087 | void |
3342 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4088 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3343 | { |
4089 | { |
3344 | clear_pending (EV_A_ (W)w); |
4090 | clear_pending (EV_A_ (W)w); |
3345 | if (expect_false (!ev_is_active (w))) |
4091 | if (expect_false (!ev_is_active (w))) |
3346 | return; |
4092 | return; |
3347 | |
4093 | |
… | |
… | |
3360 | } |
4106 | } |
3361 | #endif |
4107 | #endif |
3362 | |
4108 | |
3363 | #if EV_CHECK_ENABLE |
4109 | #if EV_CHECK_ENABLE |
3364 | void |
4110 | void |
3365 | ev_check_start (EV_P_ ev_check *w) |
4111 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3366 | { |
4112 | { |
3367 | if (expect_false (ev_is_active (w))) |
4113 | if (expect_false (ev_is_active (w))) |
3368 | return; |
4114 | return; |
3369 | |
4115 | |
3370 | EV_FREQUENT_CHECK; |
4116 | EV_FREQUENT_CHECK; |
… | |
… | |
3375 | |
4121 | |
3376 | EV_FREQUENT_CHECK; |
4122 | EV_FREQUENT_CHECK; |
3377 | } |
4123 | } |
3378 | |
4124 | |
3379 | void |
4125 | void |
3380 | ev_check_stop (EV_P_ ev_check *w) |
4126 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3381 | { |
4127 | { |
3382 | clear_pending (EV_A_ (W)w); |
4128 | clear_pending (EV_A_ (W)w); |
3383 | if (expect_false (!ev_is_active (w))) |
4129 | if (expect_false (!ev_is_active (w))) |
3384 | return; |
4130 | return; |
3385 | |
4131 | |
… | |
… | |
3398 | } |
4144 | } |
3399 | #endif |
4145 | #endif |
3400 | |
4146 | |
3401 | #if EV_EMBED_ENABLE |
4147 | #if EV_EMBED_ENABLE |
3402 | void noinline |
4148 | void noinline |
3403 | ev_embed_sweep (EV_P_ ev_embed *w) |
4149 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3404 | { |
4150 | { |
3405 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4151 | ev_run (w->other, EVRUN_NOWAIT); |
3406 | } |
4152 | } |
3407 | |
4153 | |
3408 | static void |
4154 | static void |
3409 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4155 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3410 | { |
4156 | { |
3411 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4157 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3412 | |
4158 | |
3413 | if (ev_cb (w)) |
4159 | if (ev_cb (w)) |
3414 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4160 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3415 | else |
4161 | else |
3416 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4162 | ev_run (w->other, EVRUN_NOWAIT); |
3417 | } |
4163 | } |
3418 | |
4164 | |
3419 | static void |
4165 | static void |
3420 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4166 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3421 | { |
4167 | { |
… | |
… | |
3425 | EV_P = w->other; |
4171 | EV_P = w->other; |
3426 | |
4172 | |
3427 | while (fdchangecnt) |
4173 | while (fdchangecnt) |
3428 | { |
4174 | { |
3429 | fd_reify (EV_A); |
4175 | fd_reify (EV_A); |
3430 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4176 | ev_run (EV_A_ EVRUN_NOWAIT); |
3431 | } |
4177 | } |
3432 | } |
4178 | } |
3433 | } |
4179 | } |
3434 | |
4180 | |
3435 | static void |
4181 | static void |
… | |
… | |
3441 | |
4187 | |
3442 | { |
4188 | { |
3443 | EV_P = w->other; |
4189 | EV_P = w->other; |
3444 | |
4190 | |
3445 | ev_loop_fork (EV_A); |
4191 | ev_loop_fork (EV_A); |
3446 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4192 | ev_run (EV_A_ EVRUN_NOWAIT); |
3447 | } |
4193 | } |
3448 | |
4194 | |
3449 | ev_embed_start (EV_A_ w); |
4195 | ev_embed_start (EV_A_ w); |
3450 | } |
4196 | } |
3451 | |
4197 | |
… | |
… | |
3456 | ev_idle_stop (EV_A_ idle); |
4202 | ev_idle_stop (EV_A_ idle); |
3457 | } |
4203 | } |
3458 | #endif |
4204 | #endif |
3459 | |
4205 | |
3460 | void |
4206 | void |
3461 | ev_embed_start (EV_P_ ev_embed *w) |
4207 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3462 | { |
4208 | { |
3463 | if (expect_false (ev_is_active (w))) |
4209 | if (expect_false (ev_is_active (w))) |
3464 | return; |
4210 | return; |
3465 | |
4211 | |
3466 | { |
4212 | { |
… | |
… | |
3487 | |
4233 | |
3488 | EV_FREQUENT_CHECK; |
4234 | EV_FREQUENT_CHECK; |
3489 | } |
4235 | } |
3490 | |
4236 | |
3491 | void |
4237 | void |
3492 | ev_embed_stop (EV_P_ ev_embed *w) |
4238 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3493 | { |
4239 | { |
3494 | clear_pending (EV_A_ (W)w); |
4240 | clear_pending (EV_A_ (W)w); |
3495 | if (expect_false (!ev_is_active (w))) |
4241 | if (expect_false (!ev_is_active (w))) |
3496 | return; |
4242 | return; |
3497 | |
4243 | |
… | |
… | |
3507 | } |
4253 | } |
3508 | #endif |
4254 | #endif |
3509 | |
4255 | |
3510 | #if EV_FORK_ENABLE |
4256 | #if EV_FORK_ENABLE |
3511 | void |
4257 | void |
3512 | ev_fork_start (EV_P_ ev_fork *w) |
4258 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3513 | { |
4259 | { |
3514 | if (expect_false (ev_is_active (w))) |
4260 | if (expect_false (ev_is_active (w))) |
3515 | return; |
4261 | return; |
3516 | |
4262 | |
3517 | EV_FREQUENT_CHECK; |
4263 | EV_FREQUENT_CHECK; |
… | |
… | |
3522 | |
4268 | |
3523 | EV_FREQUENT_CHECK; |
4269 | EV_FREQUENT_CHECK; |
3524 | } |
4270 | } |
3525 | |
4271 | |
3526 | void |
4272 | void |
3527 | ev_fork_stop (EV_P_ ev_fork *w) |
4273 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3528 | { |
4274 | { |
3529 | clear_pending (EV_A_ (W)w); |
4275 | clear_pending (EV_A_ (W)w); |
3530 | if (expect_false (!ev_is_active (w))) |
4276 | if (expect_false (!ev_is_active (w))) |
3531 | return; |
4277 | return; |
3532 | |
4278 | |
… | |
… | |
3543 | |
4289 | |
3544 | EV_FREQUENT_CHECK; |
4290 | EV_FREQUENT_CHECK; |
3545 | } |
4291 | } |
3546 | #endif |
4292 | #endif |
3547 | |
4293 | |
|
|
4294 | #if EV_CLEANUP_ENABLE |
|
|
4295 | void |
|
|
4296 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4297 | { |
|
|
4298 | if (expect_false (ev_is_active (w))) |
|
|
4299 | return; |
|
|
4300 | |
|
|
4301 | EV_FREQUENT_CHECK; |
|
|
4302 | |
|
|
4303 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4304 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4305 | cleanups [cleanupcnt - 1] = w; |
|
|
4306 | |
|
|
4307 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4308 | ev_unref (EV_A); |
|
|
4309 | EV_FREQUENT_CHECK; |
|
|
4310 | } |
|
|
4311 | |
|
|
4312 | void |
|
|
4313 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4314 | { |
|
|
4315 | clear_pending (EV_A_ (W)w); |
|
|
4316 | if (expect_false (!ev_is_active (w))) |
|
|
4317 | return; |
|
|
4318 | |
|
|
4319 | EV_FREQUENT_CHECK; |
|
|
4320 | ev_ref (EV_A); |
|
|
4321 | |
|
|
4322 | { |
|
|
4323 | int active = ev_active (w); |
|
|
4324 | |
|
|
4325 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4326 | ev_active (cleanups [active - 1]) = active; |
|
|
4327 | } |
|
|
4328 | |
|
|
4329 | ev_stop (EV_A_ (W)w); |
|
|
4330 | |
|
|
4331 | EV_FREQUENT_CHECK; |
|
|
4332 | } |
|
|
4333 | #endif |
|
|
4334 | |
3548 | #if EV_ASYNC_ENABLE |
4335 | #if EV_ASYNC_ENABLE |
3549 | void |
4336 | void |
3550 | ev_async_start (EV_P_ ev_async *w) |
4337 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3551 | { |
4338 | { |
3552 | if (expect_false (ev_is_active (w))) |
4339 | if (expect_false (ev_is_active (w))) |
3553 | return; |
4340 | return; |
|
|
4341 | |
|
|
4342 | w->sent = 0; |
3554 | |
4343 | |
3555 | evpipe_init (EV_A); |
4344 | evpipe_init (EV_A); |
3556 | |
4345 | |
3557 | EV_FREQUENT_CHECK; |
4346 | EV_FREQUENT_CHECK; |
3558 | |
4347 | |
… | |
… | |
3562 | |
4351 | |
3563 | EV_FREQUENT_CHECK; |
4352 | EV_FREQUENT_CHECK; |
3564 | } |
4353 | } |
3565 | |
4354 | |
3566 | void |
4355 | void |
3567 | ev_async_stop (EV_P_ ev_async *w) |
4356 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3568 | { |
4357 | { |
3569 | clear_pending (EV_A_ (W)w); |
4358 | clear_pending (EV_A_ (W)w); |
3570 | if (expect_false (!ev_is_active (w))) |
4359 | if (expect_false (!ev_is_active (w))) |
3571 | return; |
4360 | return; |
3572 | |
4361 | |
… | |
… | |
3583 | |
4372 | |
3584 | EV_FREQUENT_CHECK; |
4373 | EV_FREQUENT_CHECK; |
3585 | } |
4374 | } |
3586 | |
4375 | |
3587 | void |
4376 | void |
3588 | ev_async_send (EV_P_ ev_async *w) |
4377 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3589 | { |
4378 | { |
3590 | w->sent = 1; |
4379 | w->sent = 1; |
3591 | evpipe_write (EV_A_ &async_pending); |
4380 | evpipe_write (EV_A_ &async_pending); |
3592 | } |
4381 | } |
3593 | #endif |
4382 | #endif |
… | |
… | |
3630 | |
4419 | |
3631 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4420 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3632 | } |
4421 | } |
3633 | |
4422 | |
3634 | void |
4423 | void |
3635 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4424 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3636 | { |
4425 | { |
3637 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4426 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3638 | |
4427 | |
3639 | if (expect_false (!once)) |
4428 | if (expect_false (!once)) |
3640 | { |
4429 | { |
3641 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4430 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3642 | return; |
4431 | return; |
3643 | } |
4432 | } |
3644 | |
4433 | |
3645 | once->cb = cb; |
4434 | once->cb = cb; |
3646 | once->arg = arg; |
4435 | once->arg = arg; |
… | |
… | |
3661 | } |
4450 | } |
3662 | |
4451 | |
3663 | /*****************************************************************************/ |
4452 | /*****************************************************************************/ |
3664 | |
4453 | |
3665 | #if EV_WALK_ENABLE |
4454 | #if EV_WALK_ENABLE |
3666 | void |
4455 | void ecb_cold |
3667 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4456 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3668 | { |
4457 | { |
3669 | int i, j; |
4458 | int i, j; |
3670 | ev_watcher_list *wl, *wn; |
4459 | ev_watcher_list *wl, *wn; |
3671 | |
4460 | |
3672 | if (types & (EV_IO | EV_EMBED)) |
4461 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3715 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4504 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3716 | #endif |
4505 | #endif |
3717 | |
4506 | |
3718 | #if EV_IDLE_ENABLE |
4507 | #if EV_IDLE_ENABLE |
3719 | if (types & EV_IDLE) |
4508 | if (types & EV_IDLE) |
3720 | for (j = NUMPRI; i--; ) |
4509 | for (j = NUMPRI; j--; ) |
3721 | for (i = idlecnt [j]; i--; ) |
4510 | for (i = idlecnt [j]; i--; ) |
3722 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4511 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3723 | #endif |
4512 | #endif |
3724 | |
4513 | |
3725 | #if EV_FORK_ENABLE |
4514 | #if EV_FORK_ENABLE |
… | |
… | |
3778 | |
4567 | |
3779 | #if EV_MULTIPLICITY |
4568 | #if EV_MULTIPLICITY |
3780 | #include "ev_wrap.h" |
4569 | #include "ev_wrap.h" |
3781 | #endif |
4570 | #endif |
3782 | |
4571 | |
3783 | #ifdef __cplusplus |
|
|
3784 | } |
|
|
3785 | #endif |
|
|
3786 | |
|
|