1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 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" |
|
|
46 | # endif |
|
|
47 | |
|
|
48 | # if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
50 | # 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 |
… | |
… | |
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 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
116 | # define EV_USE_KQUEUE 1 |
|
|
117 | # else |
|
|
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 | |
… | |
… | |
163 | |
173 | |
164 | #include <assert.h> |
174 | #include <assert.h> |
165 | #include <errno.h> |
175 | #include <errno.h> |
166 | #include <sys/types.h> |
176 | #include <sys/types.h> |
167 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
168 | |
179 | |
169 | #include <signal.h> |
180 | #include <signal.h> |
170 | |
181 | |
171 | #ifdef EV_H |
182 | #ifdef EV_H |
172 | # include EV_H |
183 | # include EV_H |
173 | #else |
184 | #else |
174 | # include "ev.h" |
185 | # include "ev.h" |
|
|
186 | #endif |
|
|
187 | |
|
|
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
175 | #endif |
197 | #endif |
176 | |
198 | |
177 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
178 | # include <sys/time.h> |
200 | # include <sys/time.h> |
179 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
180 | # include <unistd.h> |
202 | # include <unistd.h> |
181 | #else |
203 | #else |
182 | # include <io.h> |
204 | # include <io.h> |
183 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
184 | # include <windows.h> |
207 | # include <windows.h> |
185 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # endif |
210 | # endif |
|
|
211 | # undef EV_AVOID_STDIO |
188 | #endif |
212 | #endif |
|
|
213 | |
|
|
214 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
215 | * a limit of 1024 into their select. Where people have brains, |
|
|
216 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
217 | * ordered to have a vacuum, or they do anything for money. |
|
|
218 | * This might help. Or not. |
|
|
219 | */ |
|
|
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
189 | |
221 | |
190 | /* 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 */ |
191 | |
223 | |
192 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
193 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
194 | /* use what's provided */ |
226 | /* use what's provided */ |
195 | #elif defined (NSIG) |
227 | #elif defined NSIG |
196 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
197 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
198 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
199 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
200 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
201 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
202 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
203 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
204 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
205 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
206 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
207 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
208 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
209 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
211 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
213 | #else |
245 | #else |
214 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
215 | /* to make it compile regardless, just remove the above line */ |
247 | #endif |
216 | # define EV_NSIG 65 |
248 | |
|
|
249 | #ifndef EV_USE_FLOOR |
|
|
250 | # define EV_USE_FLOOR 0 |
217 | #endif |
251 | #endif |
218 | |
252 | |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
220 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
222 | # else |
256 | # else |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
224 | # endif |
258 | # endif |
225 | #endif |
259 | #endif |
226 | |
260 | |
227 | #ifndef EV_USE_MONOTONIC |
261 | #ifndef EV_USE_MONOTONIC |
228 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
229 | # define EV_USE_MONOTONIC 1 |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
230 | # else |
264 | # else |
231 | # define EV_USE_MONOTONIC 0 |
265 | # define EV_USE_MONOTONIC 0 |
232 | # endif |
266 | # endif |
233 | #endif |
267 | #endif |
234 | |
268 | |
… | |
… | |
236 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
270 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
237 | #endif |
271 | #endif |
238 | |
272 | |
239 | #ifndef EV_USE_NANOSLEEP |
273 | #ifndef EV_USE_NANOSLEEP |
240 | # if _POSIX_C_SOURCE >= 199309L |
274 | # if _POSIX_C_SOURCE >= 199309L |
241 | # define EV_USE_NANOSLEEP 1 |
275 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
242 | # else |
276 | # else |
243 | # define EV_USE_NANOSLEEP 0 |
277 | # define EV_USE_NANOSLEEP 0 |
244 | # endif |
278 | # endif |
245 | #endif |
279 | #endif |
246 | |
280 | |
247 | #ifndef EV_USE_SELECT |
281 | #ifndef EV_USE_SELECT |
248 | # define EV_USE_SELECT 1 |
282 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
249 | #endif |
283 | #endif |
250 | |
284 | |
251 | #ifndef EV_USE_POLL |
285 | #ifndef EV_USE_POLL |
252 | # ifdef _WIN32 |
286 | # ifdef _WIN32 |
253 | # define EV_USE_POLL 0 |
287 | # define EV_USE_POLL 0 |
254 | # else |
288 | # else |
255 | # define EV_USE_POLL 1 |
289 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
256 | # endif |
290 | # endif |
257 | #endif |
291 | #endif |
258 | |
292 | |
259 | #ifndef EV_USE_EPOLL |
293 | #ifndef EV_USE_EPOLL |
260 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
261 | # define EV_USE_EPOLL 1 |
295 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
262 | # else |
296 | # else |
263 | # define EV_USE_EPOLL 0 |
297 | # define EV_USE_EPOLL 0 |
264 | # endif |
298 | # endif |
265 | #endif |
299 | #endif |
266 | |
300 | |
… | |
… | |
272 | # define EV_USE_PORT 0 |
306 | # define EV_USE_PORT 0 |
273 | #endif |
307 | #endif |
274 | |
308 | |
275 | #ifndef EV_USE_INOTIFY |
309 | #ifndef EV_USE_INOTIFY |
276 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
277 | # define EV_USE_INOTIFY 1 |
311 | # define EV_USE_INOTIFY EV_FEATURE_OS |
278 | # else |
312 | # else |
279 | # define EV_USE_INOTIFY 0 |
313 | # define EV_USE_INOTIFY 0 |
280 | # endif |
314 | # endif |
281 | #endif |
315 | #endif |
282 | |
316 | |
283 | #ifndef EV_PID_HASHSIZE |
317 | #ifndef EV_PID_HASHSIZE |
284 | # if EV_MINIMAL |
318 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
285 | # define EV_PID_HASHSIZE 1 |
|
|
286 | # else |
|
|
287 | # define EV_PID_HASHSIZE 16 |
|
|
288 | # endif |
|
|
289 | #endif |
319 | #endif |
290 | |
320 | |
291 | #ifndef EV_INOTIFY_HASHSIZE |
321 | #ifndef EV_INOTIFY_HASHSIZE |
292 | # if EV_MINIMAL |
322 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
293 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
294 | # else |
|
|
295 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
296 | # endif |
|
|
297 | #endif |
323 | #endif |
298 | |
324 | |
299 | #ifndef EV_USE_EVENTFD |
325 | #ifndef EV_USE_EVENTFD |
300 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
326 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
301 | # define EV_USE_EVENTFD 1 |
327 | # define EV_USE_EVENTFD EV_FEATURE_OS |
302 | # else |
328 | # else |
303 | # define EV_USE_EVENTFD 0 |
329 | # define EV_USE_EVENTFD 0 |
304 | # endif |
330 | # endif |
305 | #endif |
331 | #endif |
306 | |
332 | |
307 | #ifndef EV_USE_SIGNALFD |
333 | #ifndef EV_USE_SIGNALFD |
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
334 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
309 | # define EV_USE_SIGNALFD 1 |
335 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
310 | # else |
336 | # else |
311 | # define EV_USE_SIGNALFD 0 |
337 | # define EV_USE_SIGNALFD 0 |
312 | # endif |
338 | # endif |
313 | #endif |
339 | #endif |
314 | |
340 | |
… | |
… | |
317 | # define EV_USE_4HEAP 1 |
343 | # define EV_USE_4HEAP 1 |
318 | # define EV_HEAP_CACHE_AT 1 |
344 | # define EV_HEAP_CACHE_AT 1 |
319 | #endif |
345 | #endif |
320 | |
346 | |
321 | #ifndef EV_VERIFY |
347 | #ifndef EV_VERIFY |
322 | # define EV_VERIFY !EV_MINIMAL |
348 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
323 | #endif |
349 | #endif |
324 | |
350 | |
325 | #ifndef EV_USE_4HEAP |
351 | #ifndef EV_USE_4HEAP |
326 | # define EV_USE_4HEAP !EV_MINIMAL |
352 | # define EV_USE_4HEAP EV_FEATURE_DATA |
327 | #endif |
353 | #endif |
328 | |
354 | |
329 | #ifndef EV_HEAP_CACHE_AT |
355 | #ifndef EV_HEAP_CACHE_AT |
330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
357 | #endif |
|
|
358 | |
|
|
359 | #ifdef ANDROID |
|
|
360 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
361 | # undef EV_USE_SELECT |
|
|
362 | # define EV_USE_SELECT 0 |
|
|
363 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
364 | # undef EV_USE_CLOCK_SYSCALL |
|
|
365 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
366 | #endif |
|
|
367 | |
|
|
368 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
369 | #ifdef _AIX |
|
|
370 | /* AIX has a completely broken poll.h header */ |
|
|
371 | # undef EV_USE_POLL |
|
|
372 | # define EV_USE_POLL 0 |
331 | #endif |
373 | #endif |
332 | |
374 | |
333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
375 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
334 | /* which makes programs even slower. might work on other unices, too. */ |
376 | /* which makes programs even slower. might work on other unices, too. */ |
335 | #if EV_USE_CLOCK_SYSCALL |
377 | #if EV_USE_CLOCK_SYSCALL |
336 | # include <syscall.h> |
378 | # include <sys/syscall.h> |
337 | # ifdef SYS_clock_gettime |
379 | # ifdef SYS_clock_gettime |
338 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
339 | # undef EV_USE_MONOTONIC |
381 | # undef EV_USE_MONOTONIC |
340 | # define EV_USE_MONOTONIC 1 |
382 | # define EV_USE_MONOTONIC 1 |
341 | # else |
383 | # else |
… | |
… | |
360 | # undef EV_USE_INOTIFY |
402 | # undef EV_USE_INOTIFY |
361 | # define EV_USE_INOTIFY 0 |
403 | # define EV_USE_INOTIFY 0 |
362 | #endif |
404 | #endif |
363 | |
405 | |
364 | #if !EV_USE_NANOSLEEP |
406 | #if !EV_USE_NANOSLEEP |
365 | # ifndef _WIN32 |
407 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
408 | # if !defined _WIN32 && !defined __hpux |
366 | # include <sys/select.h> |
409 | # include <sys/select.h> |
367 | # endif |
410 | # endif |
368 | #endif |
411 | #endif |
369 | |
412 | |
370 | #if EV_USE_INOTIFY |
413 | #if EV_USE_INOTIFY |
371 | # include <sys/utsname.h> |
|
|
372 | # include <sys/statfs.h> |
414 | # include <sys/statfs.h> |
373 | # include <sys/inotify.h> |
415 | # include <sys/inotify.h> |
374 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
416 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
375 | # ifndef IN_DONT_FOLLOW |
417 | # ifndef IN_DONT_FOLLOW |
376 | # undef EV_USE_INOTIFY |
418 | # undef EV_USE_INOTIFY |
377 | # define EV_USE_INOTIFY 0 |
419 | # define EV_USE_INOTIFY 0 |
378 | # endif |
420 | # endif |
379 | #endif |
|
|
380 | |
|
|
381 | #if EV_SELECT_IS_WINSOCKET |
|
|
382 | # include <winsock.h> |
|
|
383 | #endif |
421 | #endif |
384 | |
422 | |
385 | #if EV_USE_EVENTFD |
423 | #if EV_USE_EVENTFD |
386 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
424 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
387 | # include <stdint.h> |
425 | # include <stdint.h> |
… | |
… | |
393 | # define EFD_CLOEXEC O_CLOEXEC |
431 | # define EFD_CLOEXEC O_CLOEXEC |
394 | # else |
432 | # else |
395 | # define EFD_CLOEXEC 02000000 |
433 | # define EFD_CLOEXEC 02000000 |
396 | # endif |
434 | # endif |
397 | # endif |
435 | # endif |
398 | # ifdef __cplusplus |
|
|
399 | extern "C" { |
|
|
400 | # endif |
|
|
401 | int eventfd (unsigned int initval, int flags); |
436 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
402 | # ifdef __cplusplus |
|
|
403 | } |
|
|
404 | # endif |
|
|
405 | #endif |
437 | #endif |
406 | |
438 | |
407 | #if EV_USE_SIGNALFD |
439 | #if EV_USE_SIGNALFD |
408 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
440 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
409 | # include <stdint.h> |
441 | # include <stdint.h> |
… | |
… | |
415 | # define SFD_CLOEXEC O_CLOEXEC |
447 | # define SFD_CLOEXEC O_CLOEXEC |
416 | # else |
448 | # else |
417 | # define SFD_CLOEXEC 02000000 |
449 | # define SFD_CLOEXEC 02000000 |
418 | # endif |
450 | # endif |
419 | # endif |
451 | # endif |
420 | # ifdef __cplusplus |
|
|
421 | extern "C" { |
|
|
422 | # endif |
|
|
423 | int signalfd (int fd, const sigset_t *mask, int flags); |
452 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
424 | |
453 | |
425 | struct signalfd_siginfo |
454 | struct signalfd_siginfo |
426 | { |
455 | { |
427 | uint32_t ssi_signo; |
456 | uint32_t ssi_signo; |
428 | char pad[128 - sizeof (uint32_t)]; |
457 | char pad[128 - sizeof (uint32_t)]; |
429 | }; |
458 | }; |
430 | # ifdef __cplusplus |
|
|
431 | } |
|
|
432 | # endif |
459 | #endif |
433 | #endif |
|
|
434 | |
|
|
435 | |
460 | |
436 | /**/ |
461 | /**/ |
437 | |
462 | |
438 | #if EV_VERIFY >= 3 |
463 | #if EV_VERIFY >= 3 |
439 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
464 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
440 | #else |
465 | #else |
441 | # define EV_FREQUENT_CHECK do { } while (0) |
466 | # define EV_FREQUENT_CHECK do { } while (0) |
442 | #endif |
467 | #endif |
443 | |
468 | |
444 | /* |
469 | /* |
445 | * This is used to avoid floating point rounding problems. |
470 | * This is used to work around floating point rounding problems. |
446 | * It is added to ev_rt_now when scheduling periodics |
|
|
447 | * to ensure progress, time-wise, even when rounding |
|
|
448 | * errors are against us. |
|
|
449 | * This value is good at least till the year 4000. |
471 | * This value is good at least till the year 4000. |
450 | * Better solutions welcome. |
|
|
451 | */ |
472 | */ |
452 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
473 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
474 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
453 | |
475 | |
454 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
476 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
455 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
477 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
456 | |
478 | |
|
|
479 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
480 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
481 | |
|
|
482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
483 | /* ECB.H BEGIN */ |
|
|
484 | /* |
|
|
485 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
486 | * |
|
|
487 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
488 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
489 | * All rights reserved. |
|
|
490 | * |
|
|
491 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
492 | * tion, are permitted provided that the following conditions are met: |
|
|
493 | * |
|
|
494 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
495 | * this list of conditions and the following disclaimer. |
|
|
496 | * |
|
|
497 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
498 | * notice, this list of conditions and the following disclaimer in the |
|
|
499 | * documentation and/or other materials provided with the distribution. |
|
|
500 | * |
|
|
501 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
502 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
503 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
504 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
505 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
506 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
509 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
510 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
511 | * |
|
|
512 | * Alternatively, the contents of this file may be used under the terms of |
|
|
513 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
514 | * in which case the provisions of the GPL are applicable instead of |
|
|
515 | * the above. If you wish to allow the use of your version of this file |
|
|
516 | * only under the terms of the GPL and not to allow others to use your |
|
|
517 | * version of this file under the BSD license, indicate your decision |
|
|
518 | * by deleting the provisions above and replace them with the notice |
|
|
519 | * and other provisions required by the GPL. If you do not delete the |
|
|
520 | * provisions above, a recipient may use your version of this file under |
|
|
521 | * either the BSD or the GPL. |
|
|
522 | */ |
|
|
523 | |
|
|
524 | #ifndef ECB_H |
|
|
525 | #define ECB_H |
|
|
526 | |
|
|
527 | /* 16 bits major, 16 bits minor */ |
|
|
528 | #define ECB_VERSION 0x00010003 |
|
|
529 | |
|
|
530 | #ifdef _WIN32 |
|
|
531 | typedef signed char int8_t; |
|
|
532 | typedef unsigned char uint8_t; |
|
|
533 | typedef signed short int16_t; |
|
|
534 | typedef unsigned short uint16_t; |
|
|
535 | typedef signed int int32_t; |
|
|
536 | typedef unsigned int uint32_t; |
457 | #if __GNUC__ >= 4 |
537 | #if __GNUC__ |
458 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
538 | typedef signed long long int64_t; |
459 | # define noinline __attribute__ ((noinline)) |
539 | typedef unsigned long long uint64_t; |
|
|
540 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
541 | typedef signed __int64 int64_t; |
|
|
542 | typedef unsigned __int64 uint64_t; |
|
|
543 | #endif |
|
|
544 | #ifdef _WIN64 |
|
|
545 | #define ECB_PTRSIZE 8 |
|
|
546 | typedef uint64_t uintptr_t; |
|
|
547 | typedef int64_t intptr_t; |
|
|
548 | #else |
|
|
549 | #define ECB_PTRSIZE 4 |
|
|
550 | typedef uint32_t uintptr_t; |
|
|
551 | typedef int32_t intptr_t; |
|
|
552 | #endif |
460 | #else |
553 | #else |
461 | # define expect(expr,value) (expr) |
554 | #include <inttypes.h> |
462 | # define noinline |
555 | #if UINTMAX_MAX > 0xffffffffU |
463 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
556 | #define ECB_PTRSIZE 8 |
464 | # define inline |
557 | #else |
|
|
558 | #define ECB_PTRSIZE 4 |
|
|
559 | #endif |
465 | # endif |
560 | #endif |
|
|
561 | |
|
|
562 | /* work around x32 idiocy by defining proper macros */ |
|
|
563 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
|
|
564 | #if _ILP32 |
|
|
565 | #define ECB_AMD64_X32 1 |
|
|
566 | #else |
|
|
567 | #define ECB_AMD64 1 |
466 | #endif |
568 | #endif |
|
|
569 | #endif |
467 | |
570 | |
|
|
571 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
572 | * what their idiot authors think are the "more important" extensions, |
|
|
573 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
574 | * or so. |
|
|
575 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
576 | * an issue with that they should have done it right in the first place. |
|
|
577 | */ |
|
|
578 | #ifndef ECB_GCC_VERSION |
|
|
579 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
580 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
581 | #else |
|
|
582 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
583 | #endif |
|
|
584 | #endif |
|
|
585 | |
|
|
586 | #define ECB_CPP (__cplusplus+0) |
|
|
587 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
588 | |
|
|
589 | #if ECB_CPP |
|
|
590 | #define ECB_C 0 |
|
|
591 | #define ECB_STDC_VERSION 0 |
|
|
592 | #else |
|
|
593 | #define ECB_C 1 |
|
|
594 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
595 | #endif |
|
|
596 | |
|
|
597 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
598 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
599 | |
|
|
600 | #if ECB_CPP |
|
|
601 | #define ECB_EXTERN_C extern "C" |
|
|
602 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
603 | #define ECB_EXTERN_C_END } |
|
|
604 | #else |
|
|
605 | #define ECB_EXTERN_C extern |
|
|
606 | #define ECB_EXTERN_C_BEG |
|
|
607 | #define ECB_EXTERN_C_END |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | /*****************************************************************************/ |
|
|
611 | |
|
|
612 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
613 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
614 | |
|
|
615 | #if ECB_NO_THREADS |
|
|
616 | #define ECB_NO_SMP 1 |
|
|
617 | #endif |
|
|
618 | |
|
|
619 | #if ECB_NO_SMP |
|
|
620 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
621 | #endif |
|
|
622 | |
|
|
623 | #ifndef ECB_MEMORY_FENCE |
|
|
624 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
625 | #if __i386 || __i386__ |
|
|
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
629 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
631 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
632 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
633 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
635 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
636 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
637 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
638 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
639 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
640 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
641 | #elif __aarch64__ |
|
|
642 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
643 | #elif (__sparc || __sparc__) && !__sparcv8 |
|
|
644 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
645 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
646 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
647 | #elif defined __s390__ || defined __s390x__ |
|
|
648 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
649 | #elif defined __mips__ |
|
|
650 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
651 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
652 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
653 | #elif defined __alpha__ |
|
|
654 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
655 | #elif defined __hppa__ |
|
|
656 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
657 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
658 | #elif defined __ia64__ |
|
|
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
660 | #elif defined __m68k__ |
|
|
661 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
662 | #elif defined __m88k__ |
|
|
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
664 | #elif defined __sh__ |
|
|
665 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
666 | #endif |
|
|
667 | #endif |
|
|
668 | #endif |
|
|
669 | |
|
|
670 | #ifndef ECB_MEMORY_FENCE |
|
|
671 | #if ECB_GCC_VERSION(4,7) |
|
|
672 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
673 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
674 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
675 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
676 | |
|
|
677 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
678 | * without risking compile time errors with other compilers. We *could* |
|
|
679 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
680 | * around this shit time and again. |
|
|
681 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
682 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
683 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
684 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
685 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
686 | */ |
|
|
687 | |
|
|
688 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
689 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
690 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
691 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
692 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
693 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
694 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
695 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
696 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
697 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
698 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
699 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
700 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
701 | #elif defined _WIN32 |
|
|
702 | #include <WinNT.h> |
|
|
703 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
704 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
705 | #include <mbarrier.h> |
|
|
706 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
707 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
708 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
709 | #elif __xlC__ |
|
|
710 | #define ECB_MEMORY_FENCE __sync () |
|
|
711 | #endif |
|
|
712 | #endif |
|
|
713 | |
|
|
714 | #ifndef ECB_MEMORY_FENCE |
|
|
715 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
716 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
717 | /* not just C11 atomics and atomic accesses */ |
|
|
718 | #include <stdatomic.h> |
|
|
719 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
720 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
721 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
722 | /* for most usages, or gcc and clang have a bug */ |
|
|
723 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
724 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
725 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
726 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
727 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
728 | #endif |
|
|
729 | #endif |
|
|
730 | |
|
|
731 | #ifndef ECB_MEMORY_FENCE |
|
|
732 | #if !ECB_AVOID_PTHREADS |
|
|
733 | /* |
|
|
734 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
735 | * or failure to find pthread.h, then you should implement |
|
|
736 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
737 | * OR provide pthread.h and link against the posix thread library |
|
|
738 | * of your system. |
|
|
739 | */ |
|
|
740 | #include <pthread.h> |
|
|
741 | #define ECB_NEEDS_PTHREADS 1 |
|
|
742 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
743 | |
|
|
744 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
745 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
746 | #endif |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
750 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
751 | #endif |
|
|
752 | |
|
|
753 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
754 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
755 | #endif |
|
|
756 | |
|
|
757 | /*****************************************************************************/ |
|
|
758 | |
|
|
759 | #if __cplusplus |
|
|
760 | #define ecb_inline static inline |
|
|
761 | #elif ECB_GCC_VERSION(2,5) |
|
|
762 | #define ecb_inline static __inline__ |
|
|
763 | #elif ECB_C99 |
|
|
764 | #define ecb_inline static inline |
|
|
765 | #else |
|
|
766 | #define ecb_inline static |
|
|
767 | #endif |
|
|
768 | |
|
|
769 | #if ECB_GCC_VERSION(3,3) |
|
|
770 | #define ecb_restrict __restrict__ |
|
|
771 | #elif ECB_C99 |
|
|
772 | #define ecb_restrict restrict |
|
|
773 | #else |
|
|
774 | #define ecb_restrict |
|
|
775 | #endif |
|
|
776 | |
|
|
777 | typedef int ecb_bool; |
|
|
778 | |
|
|
779 | #define ECB_CONCAT_(a, b) a ## b |
|
|
780 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
781 | #define ECB_STRINGIFY_(a) # a |
|
|
782 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
783 | |
|
|
784 | #define ecb_function_ ecb_inline |
|
|
785 | |
|
|
786 | #if ECB_GCC_VERSION(3,1) |
|
|
787 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
788 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
789 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
790 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
791 | #else |
|
|
792 | #define ecb_attribute(attrlist) |
|
|
793 | |
|
|
794 | /* possible C11 impl for integral types |
|
|
795 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
796 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
797 | |
|
|
798 | #define ecb_is_constant(expr) 0 |
|
|
799 | #define ecb_expect(expr,value) (expr) |
|
|
800 | #define ecb_prefetch(addr,rw,locality) |
|
|
801 | #endif |
|
|
802 | |
|
|
803 | /* no emulation for ecb_decltype */ |
|
|
804 | #if ECB_GCC_VERSION(4,5) |
|
|
805 | #define ecb_decltype(x) __decltype(x) |
|
|
806 | #elif ECB_GCC_VERSION(3,0) |
|
|
807 | #define ecb_decltype(x) __typeof(x) |
|
|
808 | #endif |
|
|
809 | |
|
|
810 | #if _MSC_VER >= 1300 |
|
|
811 | #define ecb_deprecated __declspec(deprecated) |
|
|
812 | #else |
|
|
813 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
814 | #endif |
|
|
815 | |
|
|
816 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
817 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
818 | #define ecb_const ecb_attribute ((__const__)) |
|
|
819 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
820 | |
|
|
821 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ |
|
|
822 | #if ECB_C11 |
|
|
823 | #define ecb_noreturn _Noreturn |
|
|
824 | #else |
|
|
825 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
826 | #endif |
|
|
827 | |
|
|
828 | #if ECB_GCC_VERSION(4,3) |
|
|
829 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
830 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
831 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
832 | #else |
|
|
833 | #define ecb_artificial |
|
|
834 | #define ecb_hot |
|
|
835 | #define ecb_cold |
|
|
836 | #endif |
|
|
837 | |
|
|
838 | /* put around conditional expressions if you are very sure that the */ |
|
|
839 | /* expression is mostly true or mostly false. note that these return */ |
|
|
840 | /* booleans, not the expression. */ |
468 | #define expect_false(expr) expect ((expr) != 0, 0) |
841 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
469 | #define expect_true(expr) expect ((expr) != 0, 1) |
842 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
843 | /* for compatibility to the rest of the world */ |
|
|
844 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
845 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
846 | |
|
|
847 | /* count trailing zero bits and count # of one bits */ |
|
|
848 | #if ECB_GCC_VERSION(3,4) |
|
|
849 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
850 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
851 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
852 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
853 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
854 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
855 | /* no popcountll */ |
|
|
856 | #else |
|
|
857 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
858 | ecb_function_ int |
|
|
859 | ecb_ctz32 (uint32_t x) |
|
|
860 | { |
|
|
861 | int r = 0; |
|
|
862 | |
|
|
863 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
864 | |
|
|
865 | #if ECB_branchless_on_i386 |
|
|
866 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
867 | r += !!(x & 0xcccccccc) << 1; |
|
|
868 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
869 | r += !!(x & 0xff00ff00) << 3; |
|
|
870 | r += !!(x & 0xffff0000) << 4; |
|
|
871 | #else |
|
|
872 | if (x & 0xaaaaaaaa) r += 1; |
|
|
873 | if (x & 0xcccccccc) r += 2; |
|
|
874 | if (x & 0xf0f0f0f0) r += 4; |
|
|
875 | if (x & 0xff00ff00) r += 8; |
|
|
876 | if (x & 0xffff0000) r += 16; |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | return r; |
|
|
880 | } |
|
|
881 | |
|
|
882 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
883 | ecb_function_ int |
|
|
884 | ecb_ctz64 (uint64_t x) |
|
|
885 | { |
|
|
886 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
887 | return ecb_ctz32 (x >> shift) + shift; |
|
|
888 | } |
|
|
889 | |
|
|
890 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
891 | ecb_function_ int |
|
|
892 | ecb_popcount32 (uint32_t x) |
|
|
893 | { |
|
|
894 | x -= (x >> 1) & 0x55555555; |
|
|
895 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
896 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
897 | x *= 0x01010101; |
|
|
898 | |
|
|
899 | return x >> 24; |
|
|
900 | } |
|
|
901 | |
|
|
902 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
903 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
904 | { |
|
|
905 | int r = 0; |
|
|
906 | |
|
|
907 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
908 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
909 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
910 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
911 | if (x >> 1) { r += 1; } |
|
|
912 | |
|
|
913 | return r; |
|
|
914 | } |
|
|
915 | |
|
|
916 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
917 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
918 | { |
|
|
919 | int r = 0; |
|
|
920 | |
|
|
921 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
922 | |
|
|
923 | return r + ecb_ld32 (x); |
|
|
924 | } |
|
|
925 | #endif |
|
|
926 | |
|
|
927 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
928 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
929 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
930 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
931 | |
|
|
932 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
933 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
934 | { |
|
|
935 | return ( (x * 0x0802U & 0x22110U) |
|
|
936 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
937 | } |
|
|
938 | |
|
|
939 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
940 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
941 | { |
|
|
942 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
943 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
944 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
945 | x = ( x >> 8 ) | ( x << 8); |
|
|
946 | |
|
|
947 | return x; |
|
|
948 | } |
|
|
949 | |
|
|
950 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
951 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
952 | { |
|
|
953 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
954 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
955 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
956 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
957 | x = ( x >> 16 ) | ( x << 16); |
|
|
958 | |
|
|
959 | return x; |
|
|
960 | } |
|
|
961 | |
|
|
962 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
963 | /* so for this version we are lazy */ |
|
|
964 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
965 | ecb_function_ int |
|
|
966 | ecb_popcount64 (uint64_t x) |
|
|
967 | { |
|
|
968 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
969 | } |
|
|
970 | |
|
|
971 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
972 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
973 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
974 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
975 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
976 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
977 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
978 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
979 | |
|
|
980 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
981 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
982 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
983 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
984 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
985 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
986 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
987 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
988 | |
|
|
989 | #if ECB_GCC_VERSION(4,3) |
|
|
990 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
991 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
992 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
993 | #else |
|
|
994 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
995 | ecb_function_ uint16_t |
|
|
996 | ecb_bswap16 (uint16_t x) |
|
|
997 | { |
|
|
998 | return ecb_rotl16 (x, 8); |
|
|
999 | } |
|
|
1000 | |
|
|
1001 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
1002 | ecb_function_ uint32_t |
|
|
1003 | ecb_bswap32 (uint32_t x) |
|
|
1004 | { |
|
|
1005 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1006 | } |
|
|
1007 | |
|
|
1008 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
1009 | ecb_function_ uint64_t |
|
|
1010 | ecb_bswap64 (uint64_t x) |
|
|
1011 | { |
|
|
1012 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1013 | } |
|
|
1014 | #endif |
|
|
1015 | |
|
|
1016 | #if ECB_GCC_VERSION(4,5) |
|
|
1017 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1018 | #else |
|
|
1019 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1020 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
1021 | ecb_inline void ecb_unreachable (void) { } |
|
|
1022 | #endif |
|
|
1023 | |
|
|
1024 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1025 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1026 | |
|
|
1027 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
1028 | ecb_inline unsigned char |
|
|
1029 | ecb_byteorder_helper (void) |
|
|
1030 | { |
|
|
1031 | /* the union code still generates code under pressure in gcc, */ |
|
|
1032 | /* but less than using pointers, and always seems to */ |
|
|
1033 | /* successfully return a constant. */ |
|
|
1034 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1035 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1036 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1037 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
1038 | return 0x44; |
|
|
1039 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
1040 | return 0x44; |
|
|
1041 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1042 | return 0x11; |
|
|
1043 | #else |
|
|
1044 | union |
|
|
1045 | { |
|
|
1046 | uint32_t i; |
|
|
1047 | uint8_t c; |
|
|
1048 | } u = { 0x11223344 }; |
|
|
1049 | return u.c; |
|
|
1050 | #endif |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1054 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1055 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1056 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1057 | |
|
|
1058 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1059 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1060 | #else |
|
|
1061 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1062 | #endif |
|
|
1063 | |
|
|
1064 | #if __cplusplus |
|
|
1065 | template<typename T> |
|
|
1066 | static inline T ecb_div_rd (T val, T div) |
|
|
1067 | { |
|
|
1068 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1069 | } |
|
|
1070 | template<typename T> |
|
|
1071 | static inline T ecb_div_ru (T val, T div) |
|
|
1072 | { |
|
|
1073 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1074 | } |
|
|
1075 | #else |
|
|
1076 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1077 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1078 | #endif |
|
|
1079 | |
|
|
1080 | #if ecb_cplusplus_does_not_suck |
|
|
1081 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1082 | template<typename T, int N> |
|
|
1083 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1084 | { |
|
|
1085 | return N; |
|
|
1086 | } |
|
|
1087 | #else |
|
|
1088 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1089 | #endif |
|
|
1090 | |
|
|
1091 | /*******************************************************************************/ |
|
|
1092 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1093 | |
|
|
1094 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1095 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1096 | #if 0 \ |
|
|
1097 | || __i386 || __i386__ \ |
|
|
1098 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1099 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1100 | || defined __s390__ || defined __s390x__ \ |
|
|
1101 | || defined __mips__ \ |
|
|
1102 | || defined __alpha__ \ |
|
|
1103 | || defined __hppa__ \ |
|
|
1104 | || defined __ia64__ \ |
|
|
1105 | || defined __m68k__ \ |
|
|
1106 | || defined __m88k__ \ |
|
|
1107 | || defined __sh__ \ |
|
|
1108 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
|
|
1109 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1110 | || defined __aarch64__ |
|
|
1111 | #define ECB_STDFP 1 |
|
|
1112 | #include <string.h> /* for memcpy */ |
|
|
1113 | #else |
|
|
1114 | #define ECB_STDFP 0 |
|
|
1115 | #endif |
|
|
1116 | |
|
|
1117 | #ifndef ECB_NO_LIBM |
|
|
1118 | |
|
|
1119 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1120 | |
|
|
1121 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1122 | #ifdef INFINITY |
|
|
1123 | #define ECB_INFINITY INFINITY |
|
|
1124 | #else |
|
|
1125 | #define ECB_INFINITY HUGE_VAL |
|
|
1126 | #endif |
|
|
1127 | |
|
|
1128 | #ifdef NAN |
|
|
1129 | #define ECB_NAN NAN |
|
|
1130 | #else |
|
|
1131 | #define ECB_NAN ECB_INFINITY |
|
|
1132 | #endif |
|
|
1133 | |
|
|
1134 | /* converts an ieee half/binary16 to a float */ |
|
|
1135 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1136 | ecb_function_ float |
|
|
1137 | ecb_binary16_to_float (uint16_t x) |
|
|
1138 | { |
|
|
1139 | int e = (x >> 10) & 0x1f; |
|
|
1140 | int m = x & 0x3ff; |
|
|
1141 | float r; |
|
|
1142 | |
|
|
1143 | if (!e ) r = ldexpf (m , -24); |
|
|
1144 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1145 | else if (m ) r = ECB_NAN; |
|
|
1146 | else r = ECB_INFINITY; |
|
|
1147 | |
|
|
1148 | return x & 0x8000 ? -r : r; |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | /* convert a float to ieee single/binary32 */ |
|
|
1152 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1153 | ecb_function_ uint32_t |
|
|
1154 | ecb_float_to_binary32 (float x) |
|
|
1155 | { |
|
|
1156 | uint32_t r; |
|
|
1157 | |
|
|
1158 | #if ECB_STDFP |
|
|
1159 | memcpy (&r, &x, 4); |
|
|
1160 | #else |
|
|
1161 | /* slow emulation, works for anything but -0 */ |
|
|
1162 | uint32_t m; |
|
|
1163 | int e; |
|
|
1164 | |
|
|
1165 | if (x == 0e0f ) return 0x00000000U; |
|
|
1166 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1167 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1168 | if (x != x ) return 0x7fbfffffU; |
|
|
1169 | |
|
|
1170 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1171 | |
|
|
1172 | r = m & 0x80000000U; |
|
|
1173 | |
|
|
1174 | if (r) |
|
|
1175 | m = -m; |
|
|
1176 | |
|
|
1177 | if (e <= -126) |
|
|
1178 | { |
|
|
1179 | m &= 0xffffffU; |
|
|
1180 | m >>= (-125 - e); |
|
|
1181 | e = -126; |
|
|
1182 | } |
|
|
1183 | |
|
|
1184 | r |= (e + 126) << 23; |
|
|
1185 | r |= m & 0x7fffffU; |
|
|
1186 | #endif |
|
|
1187 | |
|
|
1188 | return r; |
|
|
1189 | } |
|
|
1190 | |
|
|
1191 | /* converts an ieee single/binary32 to a float */ |
|
|
1192 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1193 | ecb_function_ float |
|
|
1194 | ecb_binary32_to_float (uint32_t x) |
|
|
1195 | { |
|
|
1196 | float r; |
|
|
1197 | |
|
|
1198 | #if ECB_STDFP |
|
|
1199 | memcpy (&r, &x, 4); |
|
|
1200 | #else |
|
|
1201 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1202 | int neg = x >> 31; |
|
|
1203 | int e = (x >> 23) & 0xffU; |
|
|
1204 | |
|
|
1205 | x &= 0x7fffffU; |
|
|
1206 | |
|
|
1207 | if (e) |
|
|
1208 | x |= 0x800000U; |
|
|
1209 | else |
|
|
1210 | e = 1; |
|
|
1211 | |
|
|
1212 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1213 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1214 | |
|
|
1215 | r = neg ? -r : r; |
|
|
1216 | #endif |
|
|
1217 | |
|
|
1218 | return r; |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | /* convert a double to ieee double/binary64 */ |
|
|
1222 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1223 | ecb_function_ uint64_t |
|
|
1224 | ecb_double_to_binary64 (double x) |
|
|
1225 | { |
|
|
1226 | uint64_t r; |
|
|
1227 | |
|
|
1228 | #if ECB_STDFP |
|
|
1229 | memcpy (&r, &x, 8); |
|
|
1230 | #else |
|
|
1231 | /* slow emulation, works for anything but -0 */ |
|
|
1232 | uint64_t m; |
|
|
1233 | int e; |
|
|
1234 | |
|
|
1235 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1236 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1237 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1238 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1239 | |
|
|
1240 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1241 | |
|
|
1242 | r = m & 0x8000000000000000;; |
|
|
1243 | |
|
|
1244 | if (r) |
|
|
1245 | m = -m; |
|
|
1246 | |
|
|
1247 | if (e <= -1022) |
|
|
1248 | { |
|
|
1249 | m &= 0x1fffffffffffffU; |
|
|
1250 | m >>= (-1021 - e); |
|
|
1251 | e = -1022; |
|
|
1252 | } |
|
|
1253 | |
|
|
1254 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1255 | r |= m & 0xfffffffffffffU; |
|
|
1256 | #endif |
|
|
1257 | |
|
|
1258 | return r; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | /* converts an ieee double/binary64 to a double */ |
|
|
1262 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1263 | ecb_function_ double |
|
|
1264 | ecb_binary64_to_double (uint64_t x) |
|
|
1265 | { |
|
|
1266 | double r; |
|
|
1267 | |
|
|
1268 | #if ECB_STDFP |
|
|
1269 | memcpy (&r, &x, 8); |
|
|
1270 | #else |
|
|
1271 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1272 | int neg = x >> 63; |
|
|
1273 | int e = (x >> 52) & 0x7ffU; |
|
|
1274 | |
|
|
1275 | x &= 0xfffffffffffffU; |
|
|
1276 | |
|
|
1277 | if (e) |
|
|
1278 | x |= 0x10000000000000U; |
|
|
1279 | else |
|
|
1280 | e = 1; |
|
|
1281 | |
|
|
1282 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1283 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1284 | |
|
|
1285 | r = neg ? -r : r; |
|
|
1286 | #endif |
|
|
1287 | |
|
|
1288 | return r; |
|
|
1289 | } |
|
|
1290 | |
|
|
1291 | #endif |
|
|
1292 | |
|
|
1293 | #endif |
|
|
1294 | |
|
|
1295 | /* ECB.H END */ |
|
|
1296 | |
|
|
1297 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1298 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1299 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1300 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1301 | * libev, in which cases the memory fences become nops. |
|
|
1302 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1303 | * which will then provide the memory fences. |
|
|
1304 | */ |
|
|
1305 | # error "memory fences not defined for your architecture, please report" |
|
|
1306 | #endif |
|
|
1307 | |
|
|
1308 | #ifndef ECB_MEMORY_FENCE |
|
|
1309 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1310 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1311 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1312 | #endif |
|
|
1313 | |
|
|
1314 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1315 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1316 | #define noinline ecb_noinline |
|
|
1317 | |
470 | #define inline_size static inline |
1318 | #define inline_size ecb_inline |
471 | |
1319 | |
472 | #if EV_MINIMAL |
1320 | #if EV_FEATURE_CODE |
|
|
1321 | # define inline_speed ecb_inline |
|
|
1322 | #else |
473 | # define inline_speed static noinline |
1323 | # define inline_speed static noinline |
474 | #else |
|
|
475 | # define inline_speed static inline |
|
|
476 | #endif |
1324 | #endif |
477 | |
1325 | |
478 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1326 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
479 | |
1327 | |
480 | #if EV_MINPRI == EV_MAXPRI |
1328 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
493 | #define ev_active(w) ((W)(w))->active |
1341 | #define ev_active(w) ((W)(w))->active |
494 | #define ev_at(w) ((WT)(w))->at |
1342 | #define ev_at(w) ((WT)(w))->at |
495 | |
1343 | |
496 | #if EV_USE_REALTIME |
1344 | #if EV_USE_REALTIME |
497 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1345 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
498 | /* giving it a reasonably high chance of working on typical architetcures */ |
1346 | /* giving it a reasonably high chance of working on typical architectures */ |
499 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1347 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
500 | #endif |
1348 | #endif |
501 | |
1349 | |
502 | #if EV_USE_MONOTONIC |
1350 | #if EV_USE_MONOTONIC |
503 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1351 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
505 | |
1353 | |
506 | #ifndef EV_FD_TO_WIN32_HANDLE |
1354 | #ifndef EV_FD_TO_WIN32_HANDLE |
507 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
1355 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
508 | #endif |
1356 | #endif |
509 | #ifndef EV_WIN32_HANDLE_TO_FD |
1357 | #ifndef EV_WIN32_HANDLE_TO_FD |
510 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
1358 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
511 | #endif |
1359 | #endif |
512 | #ifndef EV_WIN32_CLOSE_FD |
1360 | #ifndef EV_WIN32_CLOSE_FD |
513 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
1361 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
514 | #endif |
1362 | #endif |
515 | |
1363 | |
… | |
… | |
517 | # include "ev_win32.c" |
1365 | # include "ev_win32.c" |
518 | #endif |
1366 | #endif |
519 | |
1367 | |
520 | /*****************************************************************************/ |
1368 | /*****************************************************************************/ |
521 | |
1369 | |
|
|
1370 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1371 | |
|
|
1372 | #if EV_USE_FLOOR |
|
|
1373 | # include <math.h> |
|
|
1374 | # define ev_floor(v) floor (v) |
|
|
1375 | #else |
|
|
1376 | |
|
|
1377 | #include <float.h> |
|
|
1378 | |
|
|
1379 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1380 | static ev_tstamp noinline |
|
|
1381 | ev_floor (ev_tstamp v) |
|
|
1382 | { |
|
|
1383 | /* the choice of shift factor is not terribly important */ |
|
|
1384 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1385 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1386 | #else |
|
|
1387 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1388 | #endif |
|
|
1389 | |
|
|
1390 | /* argument too large for an unsigned long? */ |
|
|
1391 | if (expect_false (v >= shift)) |
|
|
1392 | { |
|
|
1393 | ev_tstamp f; |
|
|
1394 | |
|
|
1395 | if (v == v - 1.) |
|
|
1396 | return v; /* very large number */ |
|
|
1397 | |
|
|
1398 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1399 | return f + ev_floor (v - f); |
|
|
1400 | } |
|
|
1401 | |
|
|
1402 | /* special treatment for negative args? */ |
|
|
1403 | if (expect_false (v < 0.)) |
|
|
1404 | { |
|
|
1405 | ev_tstamp f = -ev_floor (-v); |
|
|
1406 | |
|
|
1407 | return f - (f == v ? 0 : 1); |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | /* fits into an unsigned long */ |
|
|
1411 | return (unsigned long)v; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | #endif |
|
|
1415 | |
|
|
1416 | /*****************************************************************************/ |
|
|
1417 | |
|
|
1418 | #ifdef __linux |
|
|
1419 | # include <sys/utsname.h> |
|
|
1420 | #endif |
|
|
1421 | |
|
|
1422 | static unsigned int noinline ecb_cold |
|
|
1423 | ev_linux_version (void) |
|
|
1424 | { |
|
|
1425 | #ifdef __linux |
|
|
1426 | unsigned int v = 0; |
|
|
1427 | struct utsname buf; |
|
|
1428 | int i; |
|
|
1429 | char *p = buf.release; |
|
|
1430 | |
|
|
1431 | if (uname (&buf)) |
|
|
1432 | return 0; |
|
|
1433 | |
|
|
1434 | for (i = 3+1; --i; ) |
|
|
1435 | { |
|
|
1436 | unsigned int c = 0; |
|
|
1437 | |
|
|
1438 | for (;;) |
|
|
1439 | { |
|
|
1440 | if (*p >= '0' && *p <= '9') |
|
|
1441 | c = c * 10 + *p++ - '0'; |
|
|
1442 | else |
|
|
1443 | { |
|
|
1444 | p += *p == '.'; |
|
|
1445 | break; |
|
|
1446 | } |
|
|
1447 | } |
|
|
1448 | |
|
|
1449 | v = (v << 8) | c; |
|
|
1450 | } |
|
|
1451 | |
|
|
1452 | return v; |
|
|
1453 | #else |
|
|
1454 | return 0; |
|
|
1455 | #endif |
|
|
1456 | } |
|
|
1457 | |
|
|
1458 | /*****************************************************************************/ |
|
|
1459 | |
|
|
1460 | #if EV_AVOID_STDIO |
|
|
1461 | static void noinline ecb_cold |
|
|
1462 | ev_printerr (const char *msg) |
|
|
1463 | { |
|
|
1464 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1465 | } |
|
|
1466 | #endif |
|
|
1467 | |
522 | static void (*syserr_cb)(const char *msg); |
1468 | static void (*syserr_cb)(const char *msg) EV_THROW; |
523 | |
1469 | |
524 | void |
1470 | void ecb_cold |
525 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1471 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
526 | { |
1472 | { |
527 | syserr_cb = cb; |
1473 | syserr_cb = cb; |
528 | } |
1474 | } |
529 | |
1475 | |
530 | static void noinline |
1476 | static void noinline ecb_cold |
531 | ev_syserr (const char *msg) |
1477 | ev_syserr (const char *msg) |
532 | { |
1478 | { |
533 | if (!msg) |
1479 | if (!msg) |
534 | msg = "(libev) system error"; |
1480 | msg = "(libev) system error"; |
535 | |
1481 | |
536 | if (syserr_cb) |
1482 | if (syserr_cb) |
537 | syserr_cb (msg); |
1483 | syserr_cb (msg); |
538 | else |
1484 | else |
539 | { |
1485 | { |
|
|
1486 | #if EV_AVOID_STDIO |
|
|
1487 | ev_printerr (msg); |
|
|
1488 | ev_printerr (": "); |
|
|
1489 | ev_printerr (strerror (errno)); |
|
|
1490 | ev_printerr ("\n"); |
|
|
1491 | #else |
540 | perror (msg); |
1492 | perror (msg); |
|
|
1493 | #endif |
541 | abort (); |
1494 | abort (); |
542 | } |
1495 | } |
543 | } |
1496 | } |
544 | |
1497 | |
545 | static void * |
1498 | static void * |
546 | ev_realloc_emul (void *ptr, long size) |
1499 | ev_realloc_emul (void *ptr, long size) EV_THROW |
547 | { |
1500 | { |
548 | /* some systems, notably openbsd and darwin, fail to properly |
1501 | /* some systems, notably openbsd and darwin, fail to properly |
549 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1502 | * implement realloc (x, 0) (as required by both ansi c-89 and |
550 | * the single unix specification, so work around them here. |
1503 | * the single unix specification, so work around them here. |
|
|
1504 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1505 | * despite documenting it otherwise. |
551 | */ |
1506 | */ |
552 | |
1507 | |
553 | if (size) |
1508 | if (size) |
554 | return realloc (ptr, size); |
1509 | return realloc (ptr, size); |
555 | |
1510 | |
556 | free (ptr); |
1511 | free (ptr); |
557 | return 0; |
1512 | return 0; |
558 | } |
1513 | } |
559 | |
1514 | |
560 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1515 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
561 | |
1516 | |
562 | void |
1517 | void ecb_cold |
563 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1518 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
564 | { |
1519 | { |
565 | alloc = cb; |
1520 | alloc = cb; |
566 | } |
1521 | } |
567 | |
1522 | |
568 | inline_speed void * |
1523 | inline_speed void * |
… | |
… | |
570 | { |
1525 | { |
571 | ptr = alloc (ptr, size); |
1526 | ptr = alloc (ptr, size); |
572 | |
1527 | |
573 | if (!ptr && size) |
1528 | if (!ptr && size) |
574 | { |
1529 | { |
|
|
1530 | #if EV_AVOID_STDIO |
|
|
1531 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1532 | #else |
575 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1533 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1534 | #endif |
576 | abort (); |
1535 | abort (); |
577 | } |
1536 | } |
578 | |
1537 | |
579 | return ptr; |
1538 | return ptr; |
580 | } |
1539 | } |
… | |
… | |
596 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1555 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
597 | unsigned char unused; |
1556 | unsigned char unused; |
598 | #if EV_USE_EPOLL |
1557 | #if EV_USE_EPOLL |
599 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1558 | unsigned int egen; /* generation counter to counter epoll bugs */ |
600 | #endif |
1559 | #endif |
601 | #if EV_SELECT_IS_WINSOCKET |
1560 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
602 | SOCKET handle; |
1561 | SOCKET handle; |
|
|
1562 | #endif |
|
|
1563 | #if EV_USE_IOCP |
|
|
1564 | OVERLAPPED or, ow; |
603 | #endif |
1565 | #endif |
604 | } ANFD; |
1566 | } ANFD; |
605 | |
1567 | |
606 | /* stores the pending event set for a given watcher */ |
1568 | /* stores the pending event set for a given watcher */ |
607 | typedef struct |
1569 | typedef struct |
… | |
… | |
649 | #undef VAR |
1611 | #undef VAR |
650 | }; |
1612 | }; |
651 | #include "ev_wrap.h" |
1613 | #include "ev_wrap.h" |
652 | |
1614 | |
653 | static struct ev_loop default_loop_struct; |
1615 | static struct ev_loop default_loop_struct; |
654 | struct ev_loop *ev_default_loop_ptr; |
1616 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
655 | |
1617 | |
656 | #else |
1618 | #else |
657 | |
1619 | |
658 | ev_tstamp ev_rt_now; |
1620 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
659 | #define VAR(name,decl) static decl; |
1621 | #define VAR(name,decl) static decl; |
660 | #include "ev_vars.h" |
1622 | #include "ev_vars.h" |
661 | #undef VAR |
1623 | #undef VAR |
662 | |
1624 | |
663 | static int ev_default_loop_ptr; |
1625 | static int ev_default_loop_ptr; |
664 | |
1626 | |
665 | #endif |
1627 | #endif |
666 | |
1628 | |
667 | #if EV_MINIMAL < 2 |
1629 | #if EV_FEATURE_API |
668 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1630 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
669 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1631 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
670 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1632 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
671 | #else |
1633 | #else |
672 | # define EV_RELEASE_CB (void)0 |
1634 | # define EV_RELEASE_CB (void)0 |
673 | # define EV_ACQUIRE_CB (void)0 |
1635 | # define EV_ACQUIRE_CB (void)0 |
674 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1636 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
675 | #endif |
1637 | #endif |
676 | |
1638 | |
677 | #define EVUNLOOP_RECURSE 0x80 |
1639 | #define EVBREAK_RECURSE 0x80 |
678 | |
1640 | |
679 | /*****************************************************************************/ |
1641 | /*****************************************************************************/ |
680 | |
1642 | |
681 | #ifndef EV_HAVE_EV_TIME |
1643 | #ifndef EV_HAVE_EV_TIME |
682 | ev_tstamp |
1644 | ev_tstamp |
683 | ev_time (void) |
1645 | ev_time (void) EV_THROW |
684 | { |
1646 | { |
685 | #if EV_USE_REALTIME |
1647 | #if EV_USE_REALTIME |
686 | if (expect_true (have_realtime)) |
1648 | if (expect_true (have_realtime)) |
687 | { |
1649 | { |
688 | struct timespec ts; |
1650 | struct timespec ts; |
… | |
… | |
712 | return ev_time (); |
1674 | return ev_time (); |
713 | } |
1675 | } |
714 | |
1676 | |
715 | #if EV_MULTIPLICITY |
1677 | #if EV_MULTIPLICITY |
716 | ev_tstamp |
1678 | ev_tstamp |
717 | ev_now (EV_P) |
1679 | ev_now (EV_P) EV_THROW |
718 | { |
1680 | { |
719 | return ev_rt_now; |
1681 | return ev_rt_now; |
720 | } |
1682 | } |
721 | #endif |
1683 | #endif |
722 | |
1684 | |
723 | void |
1685 | void |
724 | ev_sleep (ev_tstamp delay) |
1686 | ev_sleep (ev_tstamp delay) EV_THROW |
725 | { |
1687 | { |
726 | if (delay > 0.) |
1688 | if (delay > 0.) |
727 | { |
1689 | { |
728 | #if EV_USE_NANOSLEEP |
1690 | #if EV_USE_NANOSLEEP |
729 | struct timespec ts; |
1691 | struct timespec ts; |
730 | |
1692 | |
731 | ts.tv_sec = (time_t)delay; |
1693 | EV_TS_SET (ts, delay); |
732 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
733 | |
|
|
734 | nanosleep (&ts, 0); |
1694 | nanosleep (&ts, 0); |
735 | #elif defined(_WIN32) |
1695 | #elif defined _WIN32 |
736 | Sleep ((unsigned long)(delay * 1e3)); |
1696 | Sleep ((unsigned long)(delay * 1e3)); |
737 | #else |
1697 | #else |
738 | struct timeval tv; |
1698 | struct timeval tv; |
739 | |
1699 | |
740 | tv.tv_sec = (time_t)delay; |
|
|
741 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
742 | |
|
|
743 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1700 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
744 | /* something not guaranteed by newer posix versions, but guaranteed */ |
1701 | /* something not guaranteed by newer posix versions, but guaranteed */ |
745 | /* by older ones */ |
1702 | /* by older ones */ |
|
|
1703 | EV_TV_SET (tv, delay); |
746 | select (0, 0, 0, 0, &tv); |
1704 | select (0, 0, 0, 0, &tv); |
747 | #endif |
1705 | #endif |
748 | } |
1706 | } |
749 | } |
1707 | } |
750 | |
1708 | |
751 | /*****************************************************************************/ |
1709 | /*****************************************************************************/ |
752 | |
1710 | |
753 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1711 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
754 | |
1712 | |
755 | /* find a suitable new size for the given array, */ |
1713 | /* find a suitable new size for the given array, */ |
756 | /* hopefully by rounding to a ncie-to-malloc size */ |
1714 | /* hopefully by rounding to a nice-to-malloc size */ |
757 | inline_size int |
1715 | inline_size int |
758 | array_nextsize (int elem, int cur, int cnt) |
1716 | array_nextsize (int elem, int cur, int cnt) |
759 | { |
1717 | { |
760 | int ncur = cur + 1; |
1718 | int ncur = cur + 1; |
761 | |
1719 | |
762 | do |
1720 | do |
763 | ncur <<= 1; |
1721 | ncur <<= 1; |
764 | while (cnt > ncur); |
1722 | while (cnt > ncur); |
765 | |
1723 | |
766 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1724 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
767 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1725 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
768 | { |
1726 | { |
769 | ncur *= elem; |
1727 | ncur *= elem; |
770 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1728 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
771 | ncur = ncur - sizeof (void *) * 4; |
1729 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
773 | } |
1731 | } |
774 | |
1732 | |
775 | return ncur; |
1733 | return ncur; |
776 | } |
1734 | } |
777 | |
1735 | |
778 | static noinline void * |
1736 | static void * noinline ecb_cold |
779 | array_realloc (int elem, void *base, int *cur, int cnt) |
1737 | array_realloc (int elem, void *base, int *cur, int cnt) |
780 | { |
1738 | { |
781 | *cur = array_nextsize (elem, *cur, cnt); |
1739 | *cur = array_nextsize (elem, *cur, cnt); |
782 | return ev_realloc (base, elem * *cur); |
1740 | return ev_realloc (base, elem * *cur); |
783 | } |
1741 | } |
… | |
… | |
786 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1744 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
787 | |
1745 | |
788 | #define array_needsize(type,base,cur,cnt,init) \ |
1746 | #define array_needsize(type,base,cur,cnt,init) \ |
789 | if (expect_false ((cnt) > (cur))) \ |
1747 | if (expect_false ((cnt) > (cur))) \ |
790 | { \ |
1748 | { \ |
791 | int ocur_ = (cur); \ |
1749 | int ecb_unused ocur_ = (cur); \ |
792 | (base) = (type *)array_realloc \ |
1750 | (base) = (type *)array_realloc \ |
793 | (sizeof (type), (base), &(cur), (cnt)); \ |
1751 | (sizeof (type), (base), &(cur), (cnt)); \ |
794 | init ((base) + (ocur_), (cur) - ocur_); \ |
1752 | init ((base) + (ocur_), (cur) - ocur_); \ |
795 | } |
1753 | } |
796 | |
1754 | |
… | |
… | |
814 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1772 | pendingcb (EV_P_ ev_prepare *w, int revents) |
815 | { |
1773 | { |
816 | } |
1774 | } |
817 | |
1775 | |
818 | void noinline |
1776 | void noinline |
819 | ev_feed_event (EV_P_ void *w, int revents) |
1777 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
820 | { |
1778 | { |
821 | W w_ = (W)w; |
1779 | W w_ = (W)w; |
822 | int pri = ABSPRI (w_); |
1780 | int pri = ABSPRI (w_); |
823 | |
1781 | |
824 | if (expect_false (w_->pending)) |
1782 | if (expect_false (w_->pending)) |
… | |
… | |
828 | w_->pending = ++pendingcnt [pri]; |
1786 | w_->pending = ++pendingcnt [pri]; |
829 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1787 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
830 | pendings [pri][w_->pending - 1].w = w_; |
1788 | pendings [pri][w_->pending - 1].w = w_; |
831 | pendings [pri][w_->pending - 1].events = revents; |
1789 | pendings [pri][w_->pending - 1].events = revents; |
832 | } |
1790 | } |
|
|
1791 | |
|
|
1792 | pendingpri = NUMPRI - 1; |
833 | } |
1793 | } |
834 | |
1794 | |
835 | inline_speed void |
1795 | inline_speed void |
836 | feed_reverse (EV_P_ W w) |
1796 | feed_reverse (EV_P_ W w) |
837 | { |
1797 | { |
… | |
… | |
857 | } |
1817 | } |
858 | |
1818 | |
859 | /*****************************************************************************/ |
1819 | /*****************************************************************************/ |
860 | |
1820 | |
861 | inline_speed void |
1821 | inline_speed void |
862 | fd_event_nc (EV_P_ int fd, int revents) |
1822 | fd_event_nocheck (EV_P_ int fd, int revents) |
863 | { |
1823 | { |
864 | ANFD *anfd = anfds + fd; |
1824 | ANFD *anfd = anfds + fd; |
865 | ev_io *w; |
1825 | ev_io *w; |
866 | |
1826 | |
867 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1827 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
879 | fd_event (EV_P_ int fd, int revents) |
1839 | fd_event (EV_P_ int fd, int revents) |
880 | { |
1840 | { |
881 | ANFD *anfd = anfds + fd; |
1841 | ANFD *anfd = anfds + fd; |
882 | |
1842 | |
883 | if (expect_true (!anfd->reify)) |
1843 | if (expect_true (!anfd->reify)) |
884 | fd_event_nc (EV_A_ fd, revents); |
1844 | fd_event_nocheck (EV_A_ fd, revents); |
885 | } |
1845 | } |
886 | |
1846 | |
887 | void |
1847 | void |
888 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1848 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
889 | { |
1849 | { |
890 | if (fd >= 0 && fd < anfdmax) |
1850 | if (fd >= 0 && fd < anfdmax) |
891 | fd_event_nc (EV_A_ fd, revents); |
1851 | fd_event_nocheck (EV_A_ fd, revents); |
892 | } |
1852 | } |
893 | |
1853 | |
894 | /* make sure the external fd watch events are in-sync */ |
1854 | /* make sure the external fd watch events are in-sync */ |
895 | /* with the kernel/libev internal state */ |
1855 | /* with the kernel/libev internal state */ |
896 | inline_size void |
1856 | inline_size void |
897 | fd_reify (EV_P) |
1857 | fd_reify (EV_P) |
898 | { |
1858 | { |
899 | int i; |
1859 | int i; |
900 | |
1860 | |
|
|
1861 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1862 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1863 | { |
|
|
1864 | int fd = fdchanges [i]; |
|
|
1865 | ANFD *anfd = anfds + fd; |
|
|
1866 | |
|
|
1867 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1868 | { |
|
|
1869 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1870 | |
|
|
1871 | if (handle != anfd->handle) |
|
|
1872 | { |
|
|
1873 | unsigned long arg; |
|
|
1874 | |
|
|
1875 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1876 | |
|
|
1877 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1878 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1879 | anfd->events = 0; |
|
|
1880 | anfd->handle = handle; |
|
|
1881 | } |
|
|
1882 | } |
|
|
1883 | } |
|
|
1884 | #endif |
|
|
1885 | |
901 | for (i = 0; i < fdchangecnt; ++i) |
1886 | for (i = 0; i < fdchangecnt; ++i) |
902 | { |
1887 | { |
903 | int fd = fdchanges [i]; |
1888 | int fd = fdchanges [i]; |
904 | ANFD *anfd = anfds + fd; |
1889 | ANFD *anfd = anfds + fd; |
905 | ev_io *w; |
1890 | ev_io *w; |
906 | |
1891 | |
907 | unsigned char events = 0; |
1892 | unsigned char o_events = anfd->events; |
|
|
1893 | unsigned char o_reify = anfd->reify; |
908 | |
1894 | |
909 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1895 | anfd->reify = 0; |
910 | events |= (unsigned char)w->events; |
|
|
911 | |
1896 | |
912 | #if EV_SELECT_IS_WINSOCKET |
1897 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
913 | if (events) |
|
|
914 | { |
1898 | { |
915 | unsigned long arg; |
1899 | anfd->events = 0; |
916 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1900 | |
917 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1901 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1902 | anfd->events |= (unsigned char)w->events; |
|
|
1903 | |
|
|
1904 | if (o_events != anfd->events) |
|
|
1905 | o_reify = EV__IOFDSET; /* actually |= */ |
918 | } |
1906 | } |
919 | #endif |
|
|
920 | |
1907 | |
921 | { |
1908 | if (o_reify & EV__IOFDSET) |
922 | unsigned char o_events = anfd->events; |
|
|
923 | unsigned char o_reify = anfd->reify; |
|
|
924 | |
|
|
925 | anfd->reify = 0; |
|
|
926 | anfd->events = events; |
|
|
927 | |
|
|
928 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
929 | backend_modify (EV_A_ fd, o_events, events); |
1909 | backend_modify (EV_A_ fd, o_events, anfd->events); |
930 | } |
|
|
931 | } |
1910 | } |
932 | |
1911 | |
933 | fdchangecnt = 0; |
1912 | fdchangecnt = 0; |
934 | } |
1913 | } |
935 | |
1914 | |
… | |
… | |
947 | fdchanges [fdchangecnt - 1] = fd; |
1926 | fdchanges [fdchangecnt - 1] = fd; |
948 | } |
1927 | } |
949 | } |
1928 | } |
950 | |
1929 | |
951 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1930 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
952 | inline_speed void |
1931 | inline_speed void ecb_cold |
953 | fd_kill (EV_P_ int fd) |
1932 | fd_kill (EV_P_ int fd) |
954 | { |
1933 | { |
955 | ev_io *w; |
1934 | ev_io *w; |
956 | |
1935 | |
957 | while ((w = (ev_io *)anfds [fd].head)) |
1936 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
959 | ev_io_stop (EV_A_ w); |
1938 | ev_io_stop (EV_A_ w); |
960 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1939 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
961 | } |
1940 | } |
962 | } |
1941 | } |
963 | |
1942 | |
964 | /* check whether the given fd is atcually valid, for error recovery */ |
1943 | /* check whether the given fd is actually valid, for error recovery */ |
965 | inline_size int |
1944 | inline_size int ecb_cold |
966 | fd_valid (int fd) |
1945 | fd_valid (int fd) |
967 | { |
1946 | { |
968 | #ifdef _WIN32 |
1947 | #ifdef _WIN32 |
969 | return _get_osfhandle (fd) != -1; |
1948 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
970 | #else |
1949 | #else |
971 | return fcntl (fd, F_GETFD) != -1; |
1950 | return fcntl (fd, F_GETFD) != -1; |
972 | #endif |
1951 | #endif |
973 | } |
1952 | } |
974 | |
1953 | |
975 | /* called on EBADF to verify fds */ |
1954 | /* called on EBADF to verify fds */ |
976 | static void noinline |
1955 | static void noinline ecb_cold |
977 | fd_ebadf (EV_P) |
1956 | fd_ebadf (EV_P) |
978 | { |
1957 | { |
979 | int fd; |
1958 | int fd; |
980 | |
1959 | |
981 | for (fd = 0; fd < anfdmax; ++fd) |
1960 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
983 | if (!fd_valid (fd) && errno == EBADF) |
1962 | if (!fd_valid (fd) && errno == EBADF) |
984 | fd_kill (EV_A_ fd); |
1963 | fd_kill (EV_A_ fd); |
985 | } |
1964 | } |
986 | |
1965 | |
987 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1966 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
988 | static void noinline |
1967 | static void noinline ecb_cold |
989 | fd_enomem (EV_P) |
1968 | fd_enomem (EV_P) |
990 | { |
1969 | { |
991 | int fd; |
1970 | int fd; |
992 | |
1971 | |
993 | for (fd = anfdmax; fd--; ) |
1972 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1011 | anfds [fd].emask = 0; |
1990 | anfds [fd].emask = 0; |
1012 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1991 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1013 | } |
1992 | } |
1014 | } |
1993 | } |
1015 | |
1994 | |
|
|
1995 | /* used to prepare libev internal fd's */ |
|
|
1996 | /* this is not fork-safe */ |
|
|
1997 | inline_speed void |
|
|
1998 | fd_intern (int fd) |
|
|
1999 | { |
|
|
2000 | #ifdef _WIN32 |
|
|
2001 | unsigned long arg = 1; |
|
|
2002 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
2003 | #else |
|
|
2004 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
2005 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
2006 | #endif |
|
|
2007 | } |
|
|
2008 | |
1016 | /*****************************************************************************/ |
2009 | /*****************************************************************************/ |
1017 | |
2010 | |
1018 | /* |
2011 | /* |
1019 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2012 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1020 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2013 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1021 | * the branching factor of the d-tree. |
2014 | * the branching factor of the d-tree. |
1022 | */ |
2015 | */ |
1023 | |
2016 | |
1024 | /* |
2017 | /* |
… | |
… | |
1172 | |
2165 | |
1173 | static ANSIG signals [EV_NSIG - 1]; |
2166 | static ANSIG signals [EV_NSIG - 1]; |
1174 | |
2167 | |
1175 | /*****************************************************************************/ |
2168 | /*****************************************************************************/ |
1176 | |
2169 | |
1177 | /* used to prepare libev internal fd's */ |
2170 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1178 | /* this is not fork-safe */ |
2171 | |
|
|
2172 | static void noinline ecb_cold |
|
|
2173 | evpipe_init (EV_P) |
|
|
2174 | { |
|
|
2175 | if (!ev_is_active (&pipe_w)) |
|
|
2176 | { |
|
|
2177 | int fds [2]; |
|
|
2178 | |
|
|
2179 | # if EV_USE_EVENTFD |
|
|
2180 | fds [0] = -1; |
|
|
2181 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2182 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2183 | fds [1] = eventfd (0, 0); |
|
|
2184 | |
|
|
2185 | if (fds [1] < 0) |
|
|
2186 | # endif |
|
|
2187 | { |
|
|
2188 | while (pipe (fds)) |
|
|
2189 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2190 | |
|
|
2191 | fd_intern (fds [0]); |
|
|
2192 | } |
|
|
2193 | |
|
|
2194 | evpipe [0] = fds [0]; |
|
|
2195 | |
|
|
2196 | if (evpipe [1] < 0) |
|
|
2197 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2198 | else |
|
|
2199 | { |
|
|
2200 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2201 | /* so that evpipe_write can always rely on its value. */ |
|
|
2202 | /* this branch does not do anything sensible on windows, */ |
|
|
2203 | /* so must not be executed on windows */ |
|
|
2204 | |
|
|
2205 | dup2 (fds [1], evpipe [1]); |
|
|
2206 | close (fds [1]); |
|
|
2207 | } |
|
|
2208 | |
|
|
2209 | fd_intern (evpipe [1]); |
|
|
2210 | |
|
|
2211 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2212 | ev_io_start (EV_A_ &pipe_w); |
|
|
2213 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2214 | } |
|
|
2215 | } |
|
|
2216 | |
1179 | inline_speed void |
2217 | inline_speed void |
1180 | fd_intern (int fd) |
2218 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1181 | { |
2219 | { |
1182 | #ifdef _WIN32 |
2220 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1183 | unsigned long arg = 1; |
|
|
1184 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1185 | #else |
|
|
1186 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1187 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1188 | #endif |
|
|
1189 | } |
|
|
1190 | |
2221 | |
1191 | static void noinline |
2222 | if (expect_true (*flag)) |
1192 | evpipe_init (EV_P) |
2223 | return; |
1193 | { |
2224 | |
1194 | if (!ev_is_active (&pipe_w)) |
2225 | *flag = 1; |
|
|
2226 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2227 | |
|
|
2228 | pipe_write_skipped = 1; |
|
|
2229 | |
|
|
2230 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2231 | |
|
|
2232 | if (pipe_write_wanted) |
1195 | { |
2233 | { |
|
|
2234 | int old_errno; |
|
|
2235 | |
|
|
2236 | pipe_write_skipped = 0; |
|
|
2237 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2238 | |
|
|
2239 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2240 | |
1196 | #if EV_USE_EVENTFD |
2241 | #if EV_USE_EVENTFD |
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2242 | if (evpipe [0] < 0) |
1198 | if (evfd < 0 && errno == EINVAL) |
|
|
1199 | evfd = eventfd (0, 0); |
|
|
1200 | |
|
|
1201 | if (evfd >= 0) |
|
|
1202 | { |
2243 | { |
1203 | evpipe [0] = -1; |
2244 | uint64_t counter = 1; |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2245 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1206 | } |
2246 | } |
1207 | else |
2247 | else |
1208 | #endif |
2248 | #endif |
1209 | { |
2249 | { |
1210 | while (pipe (evpipe)) |
2250 | #ifdef _WIN32 |
1211 | ev_syserr ("(libev) error creating signal/async pipe"); |
2251 | WSABUF buf; |
1212 | |
2252 | DWORD sent; |
1213 | fd_intern (evpipe [0]); |
2253 | buf.buf = &buf; |
1214 | fd_intern (evpipe [1]); |
2254 | buf.len = 1; |
1215 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2255 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2256 | #else |
|
|
2257 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2258 | #endif |
1216 | } |
2259 | } |
1217 | |
|
|
1218 | ev_io_start (EV_A_ &pipe_w); |
|
|
1219 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | inline_size void |
|
|
1224 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1225 | { |
|
|
1226 | if (!*flag) |
|
|
1227 | { |
|
|
1228 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1229 | |
|
|
1230 | *flag = 1; |
|
|
1231 | |
|
|
1232 | #if EV_USE_EVENTFD |
|
|
1233 | if (evfd >= 0) |
|
|
1234 | { |
|
|
1235 | uint64_t counter = 1; |
|
|
1236 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1237 | } |
|
|
1238 | else |
|
|
1239 | #endif |
|
|
1240 | write (evpipe [1], &old_errno, 1); |
|
|
1241 | |
2260 | |
1242 | errno = old_errno; |
2261 | errno = old_errno; |
1243 | } |
2262 | } |
1244 | } |
2263 | } |
1245 | |
2264 | |
… | |
… | |
1248 | static void |
2267 | static void |
1249 | pipecb (EV_P_ ev_io *iow, int revents) |
2268 | pipecb (EV_P_ ev_io *iow, int revents) |
1250 | { |
2269 | { |
1251 | int i; |
2270 | int i; |
1252 | |
2271 | |
|
|
2272 | if (revents & EV_READ) |
|
|
2273 | { |
1253 | #if EV_USE_EVENTFD |
2274 | #if EV_USE_EVENTFD |
1254 | if (evfd >= 0) |
2275 | if (evpipe [0] < 0) |
1255 | { |
2276 | { |
1256 | uint64_t counter; |
2277 | uint64_t counter; |
1257 | read (evfd, &counter, sizeof (uint64_t)); |
2278 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1258 | } |
2279 | } |
1259 | else |
2280 | else |
1260 | #endif |
2281 | #endif |
1261 | { |
2282 | { |
1262 | char dummy; |
2283 | char dummy[4]; |
|
|
2284 | #ifdef _WIN32 |
|
|
2285 | WSABUF buf; |
|
|
2286 | DWORD recvd; |
|
|
2287 | DWORD flags = 0; |
|
|
2288 | buf.buf = dummy; |
|
|
2289 | buf.len = sizeof (dummy); |
|
|
2290 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2291 | #else |
1263 | read (evpipe [0], &dummy, 1); |
2292 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2293 | #endif |
|
|
2294 | } |
1264 | } |
2295 | } |
1265 | |
2296 | |
|
|
2297 | pipe_write_skipped = 0; |
|
|
2298 | |
|
|
2299 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2300 | |
|
|
2301 | #if EV_SIGNAL_ENABLE |
1266 | if (sig_pending) |
2302 | if (sig_pending) |
1267 | { |
2303 | { |
1268 | sig_pending = 0; |
2304 | sig_pending = 0; |
|
|
2305 | |
|
|
2306 | ECB_MEMORY_FENCE; |
1269 | |
2307 | |
1270 | for (i = EV_NSIG - 1; i--; ) |
2308 | for (i = EV_NSIG - 1; i--; ) |
1271 | if (expect_false (signals [i].pending)) |
2309 | if (expect_false (signals [i].pending)) |
1272 | ev_feed_signal_event (EV_A_ i + 1); |
2310 | ev_feed_signal_event (EV_A_ i + 1); |
1273 | } |
2311 | } |
|
|
2312 | #endif |
1274 | |
2313 | |
1275 | #if EV_ASYNC_ENABLE |
2314 | #if EV_ASYNC_ENABLE |
1276 | if (async_pending) |
2315 | if (async_pending) |
1277 | { |
2316 | { |
1278 | async_pending = 0; |
2317 | async_pending = 0; |
|
|
2318 | |
|
|
2319 | ECB_MEMORY_FENCE; |
1279 | |
2320 | |
1280 | for (i = asynccnt; i--; ) |
2321 | for (i = asynccnt; i--; ) |
1281 | if (asyncs [i]->sent) |
2322 | if (asyncs [i]->sent) |
1282 | { |
2323 | { |
1283 | asyncs [i]->sent = 0; |
2324 | asyncs [i]->sent = 0; |
|
|
2325 | ECB_MEMORY_FENCE_RELEASE; |
1284 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2326 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1285 | } |
2327 | } |
1286 | } |
2328 | } |
1287 | #endif |
2329 | #endif |
1288 | } |
2330 | } |
1289 | |
2331 | |
1290 | /*****************************************************************************/ |
2332 | /*****************************************************************************/ |
1291 | |
2333 | |
|
|
2334 | void |
|
|
2335 | ev_feed_signal (int signum) EV_THROW |
|
|
2336 | { |
|
|
2337 | #if EV_MULTIPLICITY |
|
|
2338 | EV_P; |
|
|
2339 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2340 | EV_A = signals [signum - 1].loop; |
|
|
2341 | |
|
|
2342 | if (!EV_A) |
|
|
2343 | return; |
|
|
2344 | #endif |
|
|
2345 | |
|
|
2346 | signals [signum - 1].pending = 1; |
|
|
2347 | evpipe_write (EV_A_ &sig_pending); |
|
|
2348 | } |
|
|
2349 | |
1292 | static void |
2350 | static void |
1293 | ev_sighandler (int signum) |
2351 | ev_sighandler (int signum) |
1294 | { |
2352 | { |
1295 | #if EV_MULTIPLICITY |
|
|
1296 | EV_P = signals [signum - 1].loop; |
|
|
1297 | #endif |
|
|
1298 | |
|
|
1299 | #if _WIN32 |
2353 | #ifdef _WIN32 |
1300 | signal (signum, ev_sighandler); |
2354 | signal (signum, ev_sighandler); |
1301 | #endif |
2355 | #endif |
1302 | |
2356 | |
1303 | signals [signum - 1].pending = 1; |
2357 | ev_feed_signal (signum); |
1304 | evpipe_write (EV_A_ &sig_pending); |
|
|
1305 | } |
2358 | } |
1306 | |
2359 | |
1307 | void noinline |
2360 | void noinline |
1308 | ev_feed_signal_event (EV_P_ int signum) |
2361 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1309 | { |
2362 | { |
1310 | WL w; |
2363 | WL w; |
1311 | |
2364 | |
1312 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2365 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1313 | return; |
2366 | return; |
1314 | |
2367 | |
1315 | --signum; |
2368 | --signum; |
1316 | |
2369 | |
1317 | #if EV_MULTIPLICITY |
2370 | #if EV_MULTIPLICITY |
… | |
… | |
1321 | if (expect_false (signals [signum].loop != EV_A)) |
2374 | if (expect_false (signals [signum].loop != EV_A)) |
1322 | return; |
2375 | return; |
1323 | #endif |
2376 | #endif |
1324 | |
2377 | |
1325 | signals [signum].pending = 0; |
2378 | signals [signum].pending = 0; |
|
|
2379 | ECB_MEMORY_FENCE_RELEASE; |
1326 | |
2380 | |
1327 | for (w = signals [signum].head; w; w = w->next) |
2381 | for (w = signals [signum].head; w; w = w->next) |
1328 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2382 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1329 | } |
2383 | } |
1330 | |
2384 | |
… | |
… | |
1346 | break; |
2400 | break; |
1347 | } |
2401 | } |
1348 | } |
2402 | } |
1349 | #endif |
2403 | #endif |
1350 | |
2404 | |
|
|
2405 | #endif |
|
|
2406 | |
1351 | /*****************************************************************************/ |
2407 | /*****************************************************************************/ |
1352 | |
2408 | |
|
|
2409 | #if EV_CHILD_ENABLE |
1353 | static WL childs [EV_PID_HASHSIZE]; |
2410 | static WL childs [EV_PID_HASHSIZE]; |
1354 | |
|
|
1355 | #ifndef _WIN32 |
|
|
1356 | |
2411 | |
1357 | static ev_signal childev; |
2412 | static ev_signal childev; |
1358 | |
2413 | |
1359 | #ifndef WIFCONTINUED |
2414 | #ifndef WIFCONTINUED |
1360 | # define WIFCONTINUED(status) 0 |
2415 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1365 | child_reap (EV_P_ int chain, int pid, int status) |
2420 | child_reap (EV_P_ int chain, int pid, int status) |
1366 | { |
2421 | { |
1367 | ev_child *w; |
2422 | ev_child *w; |
1368 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2423 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1369 | |
2424 | |
1370 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2425 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1371 | { |
2426 | { |
1372 | if ((w->pid == pid || !w->pid) |
2427 | if ((w->pid == pid || !w->pid) |
1373 | && (!traced || (w->flags & 1))) |
2428 | && (!traced || (w->flags & 1))) |
1374 | { |
2429 | { |
1375 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2430 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1400 | /* make sure we are called again until all children have been reaped */ |
2455 | /* make sure we are called again until all children have been reaped */ |
1401 | /* we need to do it this way so that the callback gets called before we continue */ |
2456 | /* we need to do it this way so that the callback gets called before we continue */ |
1402 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2457 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1403 | |
2458 | |
1404 | child_reap (EV_A_ pid, pid, status); |
2459 | child_reap (EV_A_ pid, pid, status); |
1405 | if (EV_PID_HASHSIZE > 1) |
2460 | if ((EV_PID_HASHSIZE) > 1) |
1406 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2461 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1407 | } |
2462 | } |
1408 | |
2463 | |
1409 | #endif |
2464 | #endif |
1410 | |
2465 | |
1411 | /*****************************************************************************/ |
2466 | /*****************************************************************************/ |
1412 | |
2467 | |
|
|
2468 | #if EV_USE_IOCP |
|
|
2469 | # include "ev_iocp.c" |
|
|
2470 | #endif |
1413 | #if EV_USE_PORT |
2471 | #if EV_USE_PORT |
1414 | # include "ev_port.c" |
2472 | # include "ev_port.c" |
1415 | #endif |
2473 | #endif |
1416 | #if EV_USE_KQUEUE |
2474 | #if EV_USE_KQUEUE |
1417 | # include "ev_kqueue.c" |
2475 | # include "ev_kqueue.c" |
… | |
… | |
1424 | #endif |
2482 | #endif |
1425 | #if EV_USE_SELECT |
2483 | #if EV_USE_SELECT |
1426 | # include "ev_select.c" |
2484 | # include "ev_select.c" |
1427 | #endif |
2485 | #endif |
1428 | |
2486 | |
1429 | int |
2487 | int ecb_cold |
1430 | ev_version_major (void) |
2488 | ev_version_major (void) EV_THROW |
1431 | { |
2489 | { |
1432 | return EV_VERSION_MAJOR; |
2490 | return EV_VERSION_MAJOR; |
1433 | } |
2491 | } |
1434 | |
2492 | |
1435 | int |
2493 | int ecb_cold |
1436 | ev_version_minor (void) |
2494 | ev_version_minor (void) EV_THROW |
1437 | { |
2495 | { |
1438 | return EV_VERSION_MINOR; |
2496 | return EV_VERSION_MINOR; |
1439 | } |
2497 | } |
1440 | |
2498 | |
1441 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2499 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1442 | int inline_size |
2500 | int inline_size ecb_cold |
1443 | enable_secure (void) |
2501 | enable_secure (void) |
1444 | { |
2502 | { |
1445 | #ifdef _WIN32 |
2503 | #ifdef _WIN32 |
1446 | return 0; |
2504 | return 0; |
1447 | #else |
2505 | #else |
1448 | return getuid () != geteuid () |
2506 | return getuid () != geteuid () |
1449 | || getgid () != getegid (); |
2507 | || getgid () != getegid (); |
1450 | #endif |
2508 | #endif |
1451 | } |
2509 | } |
1452 | |
2510 | |
1453 | unsigned int |
2511 | unsigned int ecb_cold |
1454 | ev_supported_backends (void) |
2512 | ev_supported_backends (void) EV_THROW |
1455 | { |
2513 | { |
1456 | unsigned int flags = 0; |
2514 | unsigned int flags = 0; |
1457 | |
2515 | |
1458 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2516 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1459 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2517 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1462 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2520 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1463 | |
2521 | |
1464 | return flags; |
2522 | return flags; |
1465 | } |
2523 | } |
1466 | |
2524 | |
1467 | unsigned int |
2525 | unsigned int ecb_cold |
1468 | ev_recommended_backends (void) |
2526 | ev_recommended_backends (void) EV_THROW |
1469 | { |
2527 | { |
1470 | unsigned int flags = ev_supported_backends (); |
2528 | unsigned int flags = ev_supported_backends (); |
1471 | |
2529 | |
1472 | #ifndef __NetBSD__ |
2530 | #ifndef __NetBSD__ |
1473 | /* kqueue is borked on everything but netbsd apparently */ |
2531 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1477 | #ifdef __APPLE__ |
2535 | #ifdef __APPLE__ |
1478 | /* only select works correctly on that "unix-certified" platform */ |
2536 | /* only select works correctly on that "unix-certified" platform */ |
1479 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2537 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1480 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2538 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1481 | #endif |
2539 | #endif |
|
|
2540 | #ifdef __FreeBSD__ |
|
|
2541 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2542 | #endif |
1482 | |
2543 | |
1483 | return flags; |
2544 | return flags; |
1484 | } |
2545 | } |
1485 | |
2546 | |
|
|
2547 | unsigned int ecb_cold |
|
|
2548 | ev_embeddable_backends (void) EV_THROW |
|
|
2549 | { |
|
|
2550 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2551 | |
|
|
2552 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2553 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2554 | flags &= ~EVBACKEND_EPOLL; |
|
|
2555 | |
|
|
2556 | return flags; |
|
|
2557 | } |
|
|
2558 | |
1486 | unsigned int |
2559 | unsigned int |
1487 | ev_embeddable_backends (void) |
2560 | ev_backend (EV_P) EV_THROW |
1488 | { |
2561 | { |
1489 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2562 | return backend; |
1490 | |
|
|
1491 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1492 | /* please fix it and tell me how to detect the fix */ |
|
|
1493 | flags &= ~EVBACKEND_EPOLL; |
|
|
1494 | |
|
|
1495 | return flags; |
|
|
1496 | } |
2563 | } |
1497 | |
2564 | |
|
|
2565 | #if EV_FEATURE_API |
1498 | unsigned int |
2566 | unsigned int |
1499 | ev_backend (EV_P) |
2567 | ev_iteration (EV_P) EV_THROW |
1500 | { |
2568 | { |
1501 | return backend; |
2569 | return loop_count; |
1502 | } |
2570 | } |
1503 | |
2571 | |
1504 | #if EV_MINIMAL < 2 |
|
|
1505 | unsigned int |
2572 | unsigned int |
1506 | ev_loop_count (EV_P) |
2573 | ev_depth (EV_P) EV_THROW |
1507 | { |
|
|
1508 | return loop_count; |
|
|
1509 | } |
|
|
1510 | |
|
|
1511 | unsigned int |
|
|
1512 | ev_loop_depth (EV_P) |
|
|
1513 | { |
2574 | { |
1514 | return loop_depth; |
2575 | return loop_depth; |
1515 | } |
2576 | } |
1516 | |
2577 | |
1517 | void |
2578 | void |
1518 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2579 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1519 | { |
2580 | { |
1520 | io_blocktime = interval; |
2581 | io_blocktime = interval; |
1521 | } |
2582 | } |
1522 | |
2583 | |
1523 | void |
2584 | void |
1524 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2585 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1525 | { |
2586 | { |
1526 | timeout_blocktime = interval; |
2587 | timeout_blocktime = interval; |
1527 | } |
2588 | } |
1528 | |
2589 | |
1529 | void |
2590 | void |
1530 | ev_set_userdata (EV_P_ void *data) |
2591 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1531 | { |
2592 | { |
1532 | userdata = data; |
2593 | userdata = data; |
1533 | } |
2594 | } |
1534 | |
2595 | |
1535 | void * |
2596 | void * |
1536 | ev_userdata (EV_P) |
2597 | ev_userdata (EV_P) EV_THROW |
1537 | { |
2598 | { |
1538 | return userdata; |
2599 | return userdata; |
1539 | } |
2600 | } |
1540 | |
2601 | |
|
|
2602 | void |
1541 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2603 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
1542 | { |
2604 | { |
1543 | invoke_cb = invoke_pending_cb; |
2605 | invoke_cb = invoke_pending_cb; |
1544 | } |
2606 | } |
1545 | |
2607 | |
1546 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2608 | void |
|
|
2609 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
1547 | { |
2610 | { |
1548 | release_cb = release; |
2611 | release_cb = release; |
1549 | acquire_cb = acquire; |
2612 | acquire_cb = acquire; |
1550 | } |
2613 | } |
1551 | #endif |
2614 | #endif |
1552 | |
2615 | |
1553 | /* initialise a loop structure, must be zero-initialised */ |
2616 | /* initialise a loop structure, must be zero-initialised */ |
1554 | static void noinline |
2617 | static void noinline ecb_cold |
1555 | loop_init (EV_P_ unsigned int flags) |
2618 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1556 | { |
2619 | { |
1557 | if (!backend) |
2620 | if (!backend) |
1558 | { |
2621 | { |
|
|
2622 | origflags = flags; |
|
|
2623 | |
1559 | #if EV_USE_REALTIME |
2624 | #if EV_USE_REALTIME |
1560 | if (!have_realtime) |
2625 | if (!have_realtime) |
1561 | { |
2626 | { |
1562 | struct timespec ts; |
2627 | struct timespec ts; |
1563 | |
2628 | |
… | |
… | |
1585 | if (!(flags & EVFLAG_NOENV) |
2650 | if (!(flags & EVFLAG_NOENV) |
1586 | && !enable_secure () |
2651 | && !enable_secure () |
1587 | && getenv ("LIBEV_FLAGS")) |
2652 | && getenv ("LIBEV_FLAGS")) |
1588 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2653 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1589 | |
2654 | |
1590 | ev_rt_now = ev_time (); |
2655 | ev_rt_now = ev_time (); |
1591 | mn_now = get_clock (); |
2656 | mn_now = get_clock (); |
1592 | now_floor = mn_now; |
2657 | now_floor = mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
2658 | rtmn_diff = ev_rt_now - mn_now; |
1594 | #if EV_MINIMAL < 2 |
2659 | #if EV_FEATURE_API |
1595 | invoke_cb = ev_invoke_pending; |
2660 | invoke_cb = ev_invoke_pending; |
1596 | #endif |
2661 | #endif |
1597 | |
2662 | |
1598 | io_blocktime = 0.; |
2663 | io_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
2664 | timeout_blocktime = 0.; |
1600 | backend = 0; |
2665 | backend = 0; |
1601 | backend_fd = -1; |
2666 | backend_fd = -1; |
1602 | sig_pending = 0; |
2667 | sig_pending = 0; |
1603 | #if EV_ASYNC_ENABLE |
2668 | #if EV_ASYNC_ENABLE |
1604 | async_pending = 0; |
2669 | async_pending = 0; |
1605 | #endif |
2670 | #endif |
|
|
2671 | pipe_write_skipped = 0; |
|
|
2672 | pipe_write_wanted = 0; |
|
|
2673 | evpipe [0] = -1; |
|
|
2674 | evpipe [1] = -1; |
1606 | #if EV_USE_INOTIFY |
2675 | #if EV_USE_INOTIFY |
1607 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2676 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1608 | #endif |
2677 | #endif |
1609 | #if EV_USE_SIGNALFD |
2678 | #if EV_USE_SIGNALFD |
1610 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2679 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1611 | #endif |
2680 | #endif |
1612 | |
2681 | |
1613 | if (!(flags & 0x0000ffffU)) |
2682 | if (!(flags & EVBACKEND_MASK)) |
1614 | flags |= ev_recommended_backends (); |
2683 | flags |= ev_recommended_backends (); |
1615 | |
2684 | |
|
|
2685 | #if EV_USE_IOCP |
|
|
2686 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2687 | #endif |
1616 | #if EV_USE_PORT |
2688 | #if EV_USE_PORT |
1617 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2689 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1618 | #endif |
2690 | #endif |
1619 | #if EV_USE_KQUEUE |
2691 | #if EV_USE_KQUEUE |
1620 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2692 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1629 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2701 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1630 | #endif |
2702 | #endif |
1631 | |
2703 | |
1632 | ev_prepare_init (&pending_w, pendingcb); |
2704 | ev_prepare_init (&pending_w, pendingcb); |
1633 | |
2705 | |
|
|
2706 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1634 | ev_init (&pipe_w, pipecb); |
2707 | ev_init (&pipe_w, pipecb); |
1635 | ev_set_priority (&pipe_w, EV_MAXPRI); |
2708 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2709 | #endif |
1636 | } |
2710 | } |
1637 | } |
2711 | } |
1638 | |
2712 | |
1639 | /* free up a loop structure */ |
2713 | /* free up a loop structure */ |
1640 | static void noinline |
2714 | void ecb_cold |
1641 | loop_destroy (EV_P) |
2715 | ev_loop_destroy (EV_P) |
1642 | { |
2716 | { |
1643 | int i; |
2717 | int i; |
|
|
2718 | |
|
|
2719 | #if EV_MULTIPLICITY |
|
|
2720 | /* mimic free (0) */ |
|
|
2721 | if (!EV_A) |
|
|
2722 | return; |
|
|
2723 | #endif |
|
|
2724 | |
|
|
2725 | #if EV_CLEANUP_ENABLE |
|
|
2726 | /* queue cleanup watchers (and execute them) */ |
|
|
2727 | if (expect_false (cleanupcnt)) |
|
|
2728 | { |
|
|
2729 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2730 | EV_INVOKE_PENDING; |
|
|
2731 | } |
|
|
2732 | #endif |
|
|
2733 | |
|
|
2734 | #if EV_CHILD_ENABLE |
|
|
2735 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2736 | { |
|
|
2737 | ev_ref (EV_A); /* child watcher */ |
|
|
2738 | ev_signal_stop (EV_A_ &childev); |
|
|
2739 | } |
|
|
2740 | #endif |
1644 | |
2741 | |
1645 | if (ev_is_active (&pipe_w)) |
2742 | if (ev_is_active (&pipe_w)) |
1646 | { |
2743 | { |
1647 | /*ev_ref (EV_A);*/ |
2744 | /*ev_ref (EV_A);*/ |
1648 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2745 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1649 | |
2746 | |
1650 | #if EV_USE_EVENTFD |
|
|
1651 | if (evfd >= 0) |
|
|
1652 | close (evfd); |
|
|
1653 | #endif |
|
|
1654 | |
|
|
1655 | if (evpipe [0] >= 0) |
|
|
1656 | { |
|
|
1657 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2747 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1658 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2748 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1659 | } |
|
|
1660 | } |
2749 | } |
1661 | |
2750 | |
1662 | #if EV_USE_SIGNALFD |
2751 | #if EV_USE_SIGNALFD |
1663 | if (ev_is_active (&sigfd_w)) |
2752 | if (ev_is_active (&sigfd_w)) |
1664 | close (sigfd); |
2753 | close (sigfd); |
… | |
… | |
1670 | #endif |
2759 | #endif |
1671 | |
2760 | |
1672 | if (backend_fd >= 0) |
2761 | if (backend_fd >= 0) |
1673 | close (backend_fd); |
2762 | close (backend_fd); |
1674 | |
2763 | |
|
|
2764 | #if EV_USE_IOCP |
|
|
2765 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2766 | #endif |
1675 | #if EV_USE_PORT |
2767 | #if EV_USE_PORT |
1676 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2768 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1677 | #endif |
2769 | #endif |
1678 | #if EV_USE_KQUEUE |
2770 | #if EV_USE_KQUEUE |
1679 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2771 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1706 | array_free (periodic, EMPTY); |
2798 | array_free (periodic, EMPTY); |
1707 | #endif |
2799 | #endif |
1708 | #if EV_FORK_ENABLE |
2800 | #if EV_FORK_ENABLE |
1709 | array_free (fork, EMPTY); |
2801 | array_free (fork, EMPTY); |
1710 | #endif |
2802 | #endif |
|
|
2803 | #if EV_CLEANUP_ENABLE |
|
|
2804 | array_free (cleanup, EMPTY); |
|
|
2805 | #endif |
1711 | array_free (prepare, EMPTY); |
2806 | array_free (prepare, EMPTY); |
1712 | array_free (check, EMPTY); |
2807 | array_free (check, EMPTY); |
1713 | #if EV_ASYNC_ENABLE |
2808 | #if EV_ASYNC_ENABLE |
1714 | array_free (async, EMPTY); |
2809 | array_free (async, EMPTY); |
1715 | #endif |
2810 | #endif |
1716 | |
2811 | |
1717 | backend = 0; |
2812 | backend = 0; |
|
|
2813 | |
|
|
2814 | #if EV_MULTIPLICITY |
|
|
2815 | if (ev_is_default_loop (EV_A)) |
|
|
2816 | #endif |
|
|
2817 | ev_default_loop_ptr = 0; |
|
|
2818 | #if EV_MULTIPLICITY |
|
|
2819 | else |
|
|
2820 | ev_free (EV_A); |
|
|
2821 | #endif |
1718 | } |
2822 | } |
1719 | |
2823 | |
1720 | #if EV_USE_INOTIFY |
2824 | #if EV_USE_INOTIFY |
1721 | inline_size void infy_fork (EV_P); |
2825 | inline_size void infy_fork (EV_P); |
1722 | #endif |
2826 | #endif |
… | |
… | |
1735 | #endif |
2839 | #endif |
1736 | #if EV_USE_INOTIFY |
2840 | #if EV_USE_INOTIFY |
1737 | infy_fork (EV_A); |
2841 | infy_fork (EV_A); |
1738 | #endif |
2842 | #endif |
1739 | |
2843 | |
|
|
2844 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1740 | if (ev_is_active (&pipe_w)) |
2845 | if (ev_is_active (&pipe_w)) |
1741 | { |
2846 | { |
1742 | /* this "locks" the handlers against writing to the pipe */ |
2847 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1743 | /* while we modify the fd vars */ |
|
|
1744 | sig_pending = 1; |
|
|
1745 | #if EV_ASYNC_ENABLE |
|
|
1746 | async_pending = 1; |
|
|
1747 | #endif |
|
|
1748 | |
2848 | |
1749 | ev_ref (EV_A); |
2849 | ev_ref (EV_A); |
1750 | ev_io_stop (EV_A_ &pipe_w); |
2850 | ev_io_stop (EV_A_ &pipe_w); |
1751 | |
2851 | |
1752 | #if EV_USE_EVENTFD |
|
|
1753 | if (evfd >= 0) |
|
|
1754 | close (evfd); |
|
|
1755 | #endif |
|
|
1756 | |
|
|
1757 | if (evpipe [0] >= 0) |
2852 | if (evpipe [0] >= 0) |
1758 | { |
|
|
1759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2853 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1760 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1761 | } |
|
|
1762 | |
2854 | |
1763 | evpipe_init (EV_A); |
2855 | evpipe_init (EV_A); |
1764 | /* now iterate over everything, in case we missed something */ |
2856 | /* iterate over everything, in case we missed something before */ |
1765 | pipecb (EV_A_ &pipe_w, EV_READ); |
2857 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1766 | } |
2858 | } |
|
|
2859 | #endif |
1767 | |
2860 | |
1768 | postfork = 0; |
2861 | postfork = 0; |
1769 | } |
2862 | } |
1770 | |
2863 | |
1771 | #if EV_MULTIPLICITY |
2864 | #if EV_MULTIPLICITY |
1772 | |
2865 | |
1773 | struct ev_loop * |
2866 | struct ev_loop * ecb_cold |
1774 | ev_loop_new (unsigned int flags) |
2867 | ev_loop_new (unsigned int flags) EV_THROW |
1775 | { |
2868 | { |
1776 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2869 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1777 | |
2870 | |
1778 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2871 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1779 | loop_init (EV_A_ flags); |
2872 | loop_init (EV_A_ flags); |
1780 | |
2873 | |
1781 | if (ev_backend (EV_A)) |
2874 | if (ev_backend (EV_A)) |
1782 | return EV_A; |
2875 | return EV_A; |
1783 | |
2876 | |
|
|
2877 | ev_free (EV_A); |
1784 | return 0; |
2878 | return 0; |
1785 | } |
2879 | } |
1786 | |
2880 | |
1787 | void |
|
|
1788 | ev_loop_destroy (EV_P) |
|
|
1789 | { |
|
|
1790 | loop_destroy (EV_A); |
|
|
1791 | ev_free (loop); |
|
|
1792 | } |
|
|
1793 | |
|
|
1794 | void |
|
|
1795 | ev_loop_fork (EV_P) |
|
|
1796 | { |
|
|
1797 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1798 | } |
|
|
1799 | #endif /* multiplicity */ |
2881 | #endif /* multiplicity */ |
1800 | |
2882 | |
1801 | #if EV_VERIFY |
2883 | #if EV_VERIFY |
1802 | static void noinline |
2884 | static void noinline ecb_cold |
1803 | verify_watcher (EV_P_ W w) |
2885 | verify_watcher (EV_P_ W w) |
1804 | { |
2886 | { |
1805 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2887 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1806 | |
2888 | |
1807 | if (w->pending) |
2889 | if (w->pending) |
1808 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2890 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1809 | } |
2891 | } |
1810 | |
2892 | |
1811 | static void noinline |
2893 | static void noinline ecb_cold |
1812 | verify_heap (EV_P_ ANHE *heap, int N) |
2894 | verify_heap (EV_P_ ANHE *heap, int N) |
1813 | { |
2895 | { |
1814 | int i; |
2896 | int i; |
1815 | |
2897 | |
1816 | for (i = HEAP0; i < N + HEAP0; ++i) |
2898 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1821 | |
2903 | |
1822 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2904 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1823 | } |
2905 | } |
1824 | } |
2906 | } |
1825 | |
2907 | |
1826 | static void noinline |
2908 | static void noinline ecb_cold |
1827 | array_verify (EV_P_ W *ws, int cnt) |
2909 | array_verify (EV_P_ W *ws, int cnt) |
1828 | { |
2910 | { |
1829 | while (cnt--) |
2911 | while (cnt--) |
1830 | { |
2912 | { |
1831 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2913 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1832 | verify_watcher (EV_A_ ws [cnt]); |
2914 | verify_watcher (EV_A_ ws [cnt]); |
1833 | } |
2915 | } |
1834 | } |
2916 | } |
1835 | #endif |
2917 | #endif |
1836 | |
2918 | |
1837 | #if EV_MINIMAL < 2 |
2919 | #if EV_FEATURE_API |
1838 | void |
2920 | void ecb_cold |
1839 | ev_loop_verify (EV_P) |
2921 | ev_verify (EV_P) EV_THROW |
1840 | { |
2922 | { |
1841 | #if EV_VERIFY |
2923 | #if EV_VERIFY |
1842 | int i; |
2924 | int i; |
1843 | WL w; |
2925 | WL w, w2; |
1844 | |
2926 | |
1845 | assert (activecnt >= -1); |
2927 | assert (activecnt >= -1); |
1846 | |
2928 | |
1847 | assert (fdchangemax >= fdchangecnt); |
2929 | assert (fdchangemax >= fdchangecnt); |
1848 | for (i = 0; i < fdchangecnt; ++i) |
2930 | for (i = 0; i < fdchangecnt; ++i) |
1849 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2931 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1850 | |
2932 | |
1851 | assert (anfdmax >= 0); |
2933 | assert (anfdmax >= 0); |
1852 | for (i = 0; i < anfdmax; ++i) |
2934 | for (i = 0; i < anfdmax; ++i) |
|
|
2935 | { |
|
|
2936 | int j = 0; |
|
|
2937 | |
1853 | for (w = anfds [i].head; w; w = w->next) |
2938 | for (w = w2 = anfds [i].head; w; w = w->next) |
1854 | { |
2939 | { |
1855 | verify_watcher (EV_A_ (W)w); |
2940 | verify_watcher (EV_A_ (W)w); |
|
|
2941 | |
|
|
2942 | if (j++ & 1) |
|
|
2943 | { |
|
|
2944 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2945 | w2 = w2->next; |
|
|
2946 | } |
|
|
2947 | |
1856 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2948 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1857 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2949 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1858 | } |
2950 | } |
|
|
2951 | } |
1859 | |
2952 | |
1860 | assert (timermax >= timercnt); |
2953 | assert (timermax >= timercnt); |
1861 | verify_heap (EV_A_ timers, timercnt); |
2954 | verify_heap (EV_A_ timers, timercnt); |
1862 | |
2955 | |
1863 | #if EV_PERIODIC_ENABLE |
2956 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1878 | #if EV_FORK_ENABLE |
2971 | #if EV_FORK_ENABLE |
1879 | assert (forkmax >= forkcnt); |
2972 | assert (forkmax >= forkcnt); |
1880 | array_verify (EV_A_ (W *)forks, forkcnt); |
2973 | array_verify (EV_A_ (W *)forks, forkcnt); |
1881 | #endif |
2974 | #endif |
1882 | |
2975 | |
|
|
2976 | #if EV_CLEANUP_ENABLE |
|
|
2977 | assert (cleanupmax >= cleanupcnt); |
|
|
2978 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2979 | #endif |
|
|
2980 | |
1883 | #if EV_ASYNC_ENABLE |
2981 | #if EV_ASYNC_ENABLE |
1884 | assert (asyncmax >= asynccnt); |
2982 | assert (asyncmax >= asynccnt); |
1885 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2983 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1886 | #endif |
2984 | #endif |
1887 | |
2985 | |
|
|
2986 | #if EV_PREPARE_ENABLE |
1888 | assert (preparemax >= preparecnt); |
2987 | assert (preparemax >= preparecnt); |
1889 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2988 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2989 | #endif |
1890 | |
2990 | |
|
|
2991 | #if EV_CHECK_ENABLE |
1891 | assert (checkmax >= checkcnt); |
2992 | assert (checkmax >= checkcnt); |
1892 | array_verify (EV_A_ (W *)checks, checkcnt); |
2993 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2994 | #endif |
1893 | |
2995 | |
1894 | # if 0 |
2996 | # if 0 |
|
|
2997 | #if EV_CHILD_ENABLE |
1895 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2998 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1896 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
2999 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
3000 | #endif |
1897 | # endif |
3001 | # endif |
1898 | #endif |
3002 | #endif |
1899 | } |
3003 | } |
1900 | #endif |
3004 | #endif |
1901 | |
3005 | |
1902 | #if EV_MULTIPLICITY |
3006 | #if EV_MULTIPLICITY |
1903 | struct ev_loop * |
3007 | struct ev_loop * ecb_cold |
1904 | ev_default_loop_init (unsigned int flags) |
|
|
1905 | #else |
3008 | #else |
1906 | int |
3009 | int |
|
|
3010 | #endif |
1907 | ev_default_loop (unsigned int flags) |
3011 | ev_default_loop (unsigned int flags) EV_THROW |
1908 | #endif |
|
|
1909 | { |
3012 | { |
1910 | if (!ev_default_loop_ptr) |
3013 | if (!ev_default_loop_ptr) |
1911 | { |
3014 | { |
1912 | #if EV_MULTIPLICITY |
3015 | #if EV_MULTIPLICITY |
1913 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3016 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1917 | |
3020 | |
1918 | loop_init (EV_A_ flags); |
3021 | loop_init (EV_A_ flags); |
1919 | |
3022 | |
1920 | if (ev_backend (EV_A)) |
3023 | if (ev_backend (EV_A)) |
1921 | { |
3024 | { |
1922 | #ifndef _WIN32 |
3025 | #if EV_CHILD_ENABLE |
1923 | ev_signal_init (&childev, childcb, SIGCHLD); |
3026 | ev_signal_init (&childev, childcb, SIGCHLD); |
1924 | ev_set_priority (&childev, EV_MAXPRI); |
3027 | ev_set_priority (&childev, EV_MAXPRI); |
1925 | ev_signal_start (EV_A_ &childev); |
3028 | ev_signal_start (EV_A_ &childev); |
1926 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
3029 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1927 | #endif |
3030 | #endif |
… | |
… | |
1932 | |
3035 | |
1933 | return ev_default_loop_ptr; |
3036 | return ev_default_loop_ptr; |
1934 | } |
3037 | } |
1935 | |
3038 | |
1936 | void |
3039 | void |
1937 | ev_default_destroy (void) |
3040 | ev_loop_fork (EV_P) EV_THROW |
1938 | { |
3041 | { |
1939 | #if EV_MULTIPLICITY |
3042 | postfork = 1; |
1940 | EV_P = ev_default_loop_ptr; |
|
|
1941 | #endif |
|
|
1942 | |
|
|
1943 | ev_default_loop_ptr = 0; |
|
|
1944 | |
|
|
1945 | #ifndef _WIN32 |
|
|
1946 | ev_ref (EV_A); /* child watcher */ |
|
|
1947 | ev_signal_stop (EV_A_ &childev); |
|
|
1948 | #endif |
|
|
1949 | |
|
|
1950 | loop_destroy (EV_A); |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | void |
|
|
1954 | ev_default_fork (void) |
|
|
1955 | { |
|
|
1956 | #if EV_MULTIPLICITY |
|
|
1957 | EV_P = ev_default_loop_ptr; |
|
|
1958 | #endif |
|
|
1959 | |
|
|
1960 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1961 | } |
3043 | } |
1962 | |
3044 | |
1963 | /*****************************************************************************/ |
3045 | /*****************************************************************************/ |
1964 | |
3046 | |
1965 | void |
3047 | void |
… | |
… | |
1967 | { |
3049 | { |
1968 | EV_CB_INVOKE ((W)w, revents); |
3050 | EV_CB_INVOKE ((W)w, revents); |
1969 | } |
3051 | } |
1970 | |
3052 | |
1971 | unsigned int |
3053 | unsigned int |
1972 | ev_pending_count (EV_P) |
3054 | ev_pending_count (EV_P) EV_THROW |
1973 | { |
3055 | { |
1974 | int pri; |
3056 | int pri; |
1975 | unsigned int count = 0; |
3057 | unsigned int count = 0; |
1976 | |
3058 | |
1977 | for (pri = NUMPRI; pri--; ) |
3059 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1981 | } |
3063 | } |
1982 | |
3064 | |
1983 | void noinline |
3065 | void noinline |
1984 | ev_invoke_pending (EV_P) |
3066 | ev_invoke_pending (EV_P) |
1985 | { |
3067 | { |
1986 | int pri; |
3068 | pendingpri = NUMPRI; |
1987 | |
3069 | |
1988 | for (pri = NUMPRI; pri--; ) |
3070 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3071 | { |
|
|
3072 | --pendingpri; |
|
|
3073 | |
1989 | while (pendingcnt [pri]) |
3074 | while (pendingcnt [pendingpri]) |
1990 | { |
3075 | { |
1991 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3076 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1992 | |
3077 | |
1993 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1994 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1995 | |
|
|
1996 | p->w->pending = 0; |
3078 | p->w->pending = 0; |
1997 | EV_CB_INVOKE (p->w, p->events); |
3079 | EV_CB_INVOKE (p->w, p->events); |
1998 | EV_FREQUENT_CHECK; |
3080 | EV_FREQUENT_CHECK; |
1999 | } |
3081 | } |
|
|
3082 | } |
2000 | } |
3083 | } |
2001 | |
3084 | |
2002 | #if EV_IDLE_ENABLE |
3085 | #if EV_IDLE_ENABLE |
2003 | /* make idle watchers pending. this handles the "call-idle */ |
3086 | /* make idle watchers pending. this handles the "call-idle */ |
2004 | /* only when higher priorities are idle" logic */ |
3087 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2056 | EV_FREQUENT_CHECK; |
3139 | EV_FREQUENT_CHECK; |
2057 | feed_reverse (EV_A_ (W)w); |
3140 | feed_reverse (EV_A_ (W)w); |
2058 | } |
3141 | } |
2059 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3142 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2060 | |
3143 | |
2061 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3144 | feed_reverse_done (EV_A_ EV_TIMER); |
2062 | } |
3145 | } |
2063 | } |
3146 | } |
2064 | |
3147 | |
2065 | #if EV_PERIODIC_ENABLE |
3148 | #if EV_PERIODIC_ENABLE |
|
|
3149 | |
|
|
3150 | static void noinline |
|
|
3151 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3152 | { |
|
|
3153 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3154 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3155 | |
|
|
3156 | /* the above almost always errs on the low side */ |
|
|
3157 | while (at <= ev_rt_now) |
|
|
3158 | { |
|
|
3159 | ev_tstamp nat = at + w->interval; |
|
|
3160 | |
|
|
3161 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3162 | if (expect_false (nat == at)) |
|
|
3163 | { |
|
|
3164 | at = ev_rt_now; |
|
|
3165 | break; |
|
|
3166 | } |
|
|
3167 | |
|
|
3168 | at = nat; |
|
|
3169 | } |
|
|
3170 | |
|
|
3171 | ev_at (w) = at; |
|
|
3172 | } |
|
|
3173 | |
2066 | /* make periodics pending */ |
3174 | /* make periodics pending */ |
2067 | inline_size void |
3175 | inline_size void |
2068 | periodics_reify (EV_P) |
3176 | periodics_reify (EV_P) |
2069 | { |
3177 | { |
2070 | EV_FREQUENT_CHECK; |
3178 | EV_FREQUENT_CHECK; |
2071 | |
3179 | |
2072 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3180 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2073 | { |
3181 | { |
2074 | int feed_count = 0; |
|
|
2075 | |
|
|
2076 | do |
3182 | do |
2077 | { |
3183 | { |
2078 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3184 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2079 | |
3185 | |
2080 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3186 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2089 | ANHE_at_cache (periodics [HEAP0]); |
3195 | ANHE_at_cache (periodics [HEAP0]); |
2090 | downheap (periodics, periodiccnt, HEAP0); |
3196 | downheap (periodics, periodiccnt, HEAP0); |
2091 | } |
3197 | } |
2092 | else if (w->interval) |
3198 | else if (w->interval) |
2093 | { |
3199 | { |
2094 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3200 | periodic_recalc (EV_A_ w); |
2095 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2096 | /* this might happen because of floating point inexactness */ |
|
|
2097 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2098 | { |
|
|
2099 | ev_at (w) += w->interval; |
|
|
2100 | |
|
|
2101 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2102 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2103 | /* has effectively asked to get triggered more often than possible */ |
|
|
2104 | if (ev_at (w) < ev_rt_now) |
|
|
2105 | ev_at (w) = ev_rt_now; |
|
|
2106 | } |
|
|
2107 | |
|
|
2108 | ANHE_at_cache (periodics [HEAP0]); |
3201 | ANHE_at_cache (periodics [HEAP0]); |
2109 | downheap (periodics, periodiccnt, HEAP0); |
3202 | downheap (periodics, periodiccnt, HEAP0); |
2110 | } |
3203 | } |
2111 | else |
3204 | else |
2112 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3205 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2119 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3212 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2120 | } |
3213 | } |
2121 | } |
3214 | } |
2122 | |
3215 | |
2123 | /* simply recalculate all periodics */ |
3216 | /* simply recalculate all periodics */ |
2124 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3217 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2125 | static void noinline |
3218 | static void noinline ecb_cold |
2126 | periodics_reschedule (EV_P) |
3219 | periodics_reschedule (EV_P) |
2127 | { |
3220 | { |
2128 | int i; |
3221 | int i; |
2129 | |
3222 | |
2130 | /* adjust periodics after time jump */ |
3223 | /* adjust periodics after time jump */ |
… | |
… | |
2133 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3226 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2134 | |
3227 | |
2135 | if (w->reschedule_cb) |
3228 | if (w->reschedule_cb) |
2136 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3229 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2137 | else if (w->interval) |
3230 | else if (w->interval) |
2138 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3231 | periodic_recalc (EV_A_ w); |
2139 | |
3232 | |
2140 | ANHE_at_cache (periodics [i]); |
3233 | ANHE_at_cache (periodics [i]); |
2141 | } |
3234 | } |
2142 | |
3235 | |
2143 | reheap (periodics, periodiccnt); |
3236 | reheap (periodics, periodiccnt); |
2144 | } |
3237 | } |
2145 | #endif |
3238 | #endif |
2146 | |
3239 | |
2147 | /* adjust all timers by a given offset */ |
3240 | /* adjust all timers by a given offset */ |
2148 | static void noinline |
3241 | static void noinline ecb_cold |
2149 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3242 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2150 | { |
3243 | { |
2151 | int i; |
3244 | int i; |
2152 | |
3245 | |
2153 | for (i = 0; i < timercnt; ++i) |
3246 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2157 | ANHE_at_cache (*he); |
3250 | ANHE_at_cache (*he); |
2158 | } |
3251 | } |
2159 | } |
3252 | } |
2160 | |
3253 | |
2161 | /* fetch new monotonic and realtime times from the kernel */ |
3254 | /* fetch new monotonic and realtime times from the kernel */ |
2162 | /* also detetc if there was a timejump, and act accordingly */ |
3255 | /* also detect if there was a timejump, and act accordingly */ |
2163 | inline_speed void |
3256 | inline_speed void |
2164 | time_update (EV_P_ ev_tstamp max_block) |
3257 | time_update (EV_P_ ev_tstamp max_block) |
2165 | { |
3258 | { |
2166 | #if EV_USE_MONOTONIC |
3259 | #if EV_USE_MONOTONIC |
2167 | if (expect_true (have_monotonic)) |
3260 | if (expect_true (have_monotonic)) |
… | |
… | |
2190 | * doesn't hurt either as we only do this on time-jumps or |
3283 | * doesn't hurt either as we only do this on time-jumps or |
2191 | * in the unlikely event of having been preempted here. |
3284 | * in the unlikely event of having been preempted here. |
2192 | */ |
3285 | */ |
2193 | for (i = 4; --i; ) |
3286 | for (i = 4; --i; ) |
2194 | { |
3287 | { |
|
|
3288 | ev_tstamp diff; |
2195 | rtmn_diff = ev_rt_now - mn_now; |
3289 | rtmn_diff = ev_rt_now - mn_now; |
2196 | |
3290 | |
|
|
3291 | diff = odiff - rtmn_diff; |
|
|
3292 | |
2197 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3293 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2198 | return; /* all is well */ |
3294 | return; /* all is well */ |
2199 | |
3295 | |
2200 | ev_rt_now = ev_time (); |
3296 | ev_rt_now = ev_time (); |
2201 | mn_now = get_clock (); |
3297 | mn_now = get_clock (); |
2202 | now_floor = mn_now; |
3298 | now_floor = mn_now; |
… | |
… | |
2224 | |
3320 | |
2225 | mn_now = ev_rt_now; |
3321 | mn_now = ev_rt_now; |
2226 | } |
3322 | } |
2227 | } |
3323 | } |
2228 | |
3324 | |
2229 | void |
3325 | int |
2230 | ev_loop (EV_P_ int flags) |
3326 | ev_run (EV_P_ int flags) |
2231 | { |
3327 | { |
2232 | #if EV_MINIMAL < 2 |
3328 | #if EV_FEATURE_API |
2233 | ++loop_depth; |
3329 | ++loop_depth; |
2234 | #endif |
3330 | #endif |
2235 | |
3331 | |
2236 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
3332 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2237 | |
3333 | |
2238 | loop_done = EVUNLOOP_CANCEL; |
3334 | loop_done = EVBREAK_CANCEL; |
2239 | |
3335 | |
2240 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3336 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2241 | |
3337 | |
2242 | do |
3338 | do |
2243 | { |
3339 | { |
2244 | #if EV_VERIFY >= 2 |
3340 | #if EV_VERIFY >= 2 |
2245 | ev_loop_verify (EV_A); |
3341 | ev_verify (EV_A); |
2246 | #endif |
3342 | #endif |
2247 | |
3343 | |
2248 | #ifndef _WIN32 |
3344 | #ifndef _WIN32 |
2249 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3345 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2250 | if (expect_false (getpid () != curpid)) |
3346 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2262 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3358 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2263 | EV_INVOKE_PENDING; |
3359 | EV_INVOKE_PENDING; |
2264 | } |
3360 | } |
2265 | #endif |
3361 | #endif |
2266 | |
3362 | |
|
|
3363 | #if EV_PREPARE_ENABLE |
2267 | /* queue prepare watchers (and execute them) */ |
3364 | /* queue prepare watchers (and execute them) */ |
2268 | if (expect_false (preparecnt)) |
3365 | if (expect_false (preparecnt)) |
2269 | { |
3366 | { |
2270 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3367 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2271 | EV_INVOKE_PENDING; |
3368 | EV_INVOKE_PENDING; |
2272 | } |
3369 | } |
|
|
3370 | #endif |
2273 | |
3371 | |
2274 | if (expect_false (loop_done)) |
3372 | if (expect_false (loop_done)) |
2275 | break; |
3373 | break; |
2276 | |
3374 | |
2277 | /* we might have forked, so reify kernel state if necessary */ |
3375 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2284 | /* calculate blocking time */ |
3382 | /* calculate blocking time */ |
2285 | { |
3383 | { |
2286 | ev_tstamp waittime = 0.; |
3384 | ev_tstamp waittime = 0.; |
2287 | ev_tstamp sleeptime = 0.; |
3385 | ev_tstamp sleeptime = 0.; |
2288 | |
3386 | |
|
|
3387 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3388 | ev_tstamp prev_mn_now = mn_now; |
|
|
3389 | |
|
|
3390 | /* update time to cancel out callback processing overhead */ |
|
|
3391 | time_update (EV_A_ 1e100); |
|
|
3392 | |
|
|
3393 | /* from now on, we want a pipe-wake-up */ |
|
|
3394 | pipe_write_wanted = 1; |
|
|
3395 | |
|
|
3396 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3397 | |
2289 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3398 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2290 | { |
3399 | { |
2291 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2292 | ev_tstamp prev_mn_now = mn_now; |
|
|
2293 | |
|
|
2294 | /* update time to cancel out callback processing overhead */ |
|
|
2295 | time_update (EV_A_ 1e100); |
|
|
2296 | |
|
|
2297 | waittime = MAX_BLOCKTIME; |
3400 | waittime = MAX_BLOCKTIME; |
2298 | |
3401 | |
2299 | if (timercnt) |
3402 | if (timercnt) |
2300 | { |
3403 | { |
2301 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3404 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2302 | if (waittime > to) waittime = to; |
3405 | if (waittime > to) waittime = to; |
2303 | } |
3406 | } |
2304 | |
3407 | |
2305 | #if EV_PERIODIC_ENABLE |
3408 | #if EV_PERIODIC_ENABLE |
2306 | if (periodiccnt) |
3409 | if (periodiccnt) |
2307 | { |
3410 | { |
2308 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3411 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2309 | if (waittime > to) waittime = to; |
3412 | if (waittime > to) waittime = to; |
2310 | } |
3413 | } |
2311 | #endif |
3414 | #endif |
2312 | |
3415 | |
2313 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3416 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2314 | if (expect_false (waittime < timeout_blocktime)) |
3417 | if (expect_false (waittime < timeout_blocktime)) |
2315 | waittime = timeout_blocktime; |
3418 | waittime = timeout_blocktime; |
|
|
3419 | |
|
|
3420 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3421 | /* to pass a minimum nonzero value to the backend */ |
|
|
3422 | if (expect_false (waittime < backend_mintime)) |
|
|
3423 | waittime = backend_mintime; |
2316 | |
3424 | |
2317 | /* extra check because io_blocktime is commonly 0 */ |
3425 | /* extra check because io_blocktime is commonly 0 */ |
2318 | if (expect_false (io_blocktime)) |
3426 | if (expect_false (io_blocktime)) |
2319 | { |
3427 | { |
2320 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3428 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2321 | |
3429 | |
2322 | if (sleeptime > waittime - backend_fudge) |
3430 | if (sleeptime > waittime - backend_mintime) |
2323 | sleeptime = waittime - backend_fudge; |
3431 | sleeptime = waittime - backend_mintime; |
2324 | |
3432 | |
2325 | if (expect_true (sleeptime > 0.)) |
3433 | if (expect_true (sleeptime > 0.)) |
2326 | { |
3434 | { |
2327 | ev_sleep (sleeptime); |
3435 | ev_sleep (sleeptime); |
2328 | waittime -= sleeptime; |
3436 | waittime -= sleeptime; |
2329 | } |
3437 | } |
2330 | } |
3438 | } |
2331 | } |
3439 | } |
2332 | |
3440 | |
2333 | #if EV_MINIMAL < 2 |
3441 | #if EV_FEATURE_API |
2334 | ++loop_count; |
3442 | ++loop_count; |
2335 | #endif |
3443 | #endif |
2336 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3444 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2337 | backend_poll (EV_A_ waittime); |
3445 | backend_poll (EV_A_ waittime); |
2338 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3446 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3447 | |
|
|
3448 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3449 | |
|
|
3450 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3451 | if (pipe_write_skipped) |
|
|
3452 | { |
|
|
3453 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3454 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3455 | } |
|
|
3456 | |
2339 | |
3457 | |
2340 | /* update ev_rt_now, do magic */ |
3458 | /* update ev_rt_now, do magic */ |
2341 | time_update (EV_A_ waittime + sleeptime); |
3459 | time_update (EV_A_ waittime + sleeptime); |
2342 | } |
3460 | } |
2343 | |
3461 | |
… | |
… | |
2350 | #if EV_IDLE_ENABLE |
3468 | #if EV_IDLE_ENABLE |
2351 | /* queue idle watchers unless other events are pending */ |
3469 | /* queue idle watchers unless other events are pending */ |
2352 | idle_reify (EV_A); |
3470 | idle_reify (EV_A); |
2353 | #endif |
3471 | #endif |
2354 | |
3472 | |
|
|
3473 | #if EV_CHECK_ENABLE |
2355 | /* queue check watchers, to be executed first */ |
3474 | /* queue check watchers, to be executed first */ |
2356 | if (expect_false (checkcnt)) |
3475 | if (expect_false (checkcnt)) |
2357 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3476 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3477 | #endif |
2358 | |
3478 | |
2359 | EV_INVOKE_PENDING; |
3479 | EV_INVOKE_PENDING; |
2360 | } |
3480 | } |
2361 | while (expect_true ( |
3481 | while (expect_true ( |
2362 | activecnt |
3482 | activecnt |
2363 | && !loop_done |
3483 | && !loop_done |
2364 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3484 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2365 | )); |
3485 | )); |
2366 | |
3486 | |
2367 | if (loop_done == EVUNLOOP_ONE) |
3487 | if (loop_done == EVBREAK_ONE) |
2368 | loop_done = EVUNLOOP_CANCEL; |
3488 | loop_done = EVBREAK_CANCEL; |
2369 | |
3489 | |
2370 | #if EV_MINIMAL < 2 |
3490 | #if EV_FEATURE_API |
2371 | --loop_depth; |
3491 | --loop_depth; |
2372 | #endif |
3492 | #endif |
|
|
3493 | |
|
|
3494 | return activecnt; |
2373 | } |
3495 | } |
2374 | |
3496 | |
2375 | void |
3497 | void |
2376 | ev_unloop (EV_P_ int how) |
3498 | ev_break (EV_P_ int how) EV_THROW |
2377 | { |
3499 | { |
2378 | loop_done = how; |
3500 | loop_done = how; |
2379 | } |
3501 | } |
2380 | |
3502 | |
2381 | void |
3503 | void |
2382 | ev_ref (EV_P) |
3504 | ev_ref (EV_P) EV_THROW |
2383 | { |
3505 | { |
2384 | ++activecnt; |
3506 | ++activecnt; |
2385 | } |
3507 | } |
2386 | |
3508 | |
2387 | void |
3509 | void |
2388 | ev_unref (EV_P) |
3510 | ev_unref (EV_P) EV_THROW |
2389 | { |
3511 | { |
2390 | --activecnt; |
3512 | --activecnt; |
2391 | } |
3513 | } |
2392 | |
3514 | |
2393 | void |
3515 | void |
2394 | ev_now_update (EV_P) |
3516 | ev_now_update (EV_P) EV_THROW |
2395 | { |
3517 | { |
2396 | time_update (EV_A_ 1e100); |
3518 | time_update (EV_A_ 1e100); |
2397 | } |
3519 | } |
2398 | |
3520 | |
2399 | void |
3521 | void |
2400 | ev_suspend (EV_P) |
3522 | ev_suspend (EV_P) EV_THROW |
2401 | { |
3523 | { |
2402 | ev_now_update (EV_A); |
3524 | ev_now_update (EV_A); |
2403 | } |
3525 | } |
2404 | |
3526 | |
2405 | void |
3527 | void |
2406 | ev_resume (EV_P) |
3528 | ev_resume (EV_P) EV_THROW |
2407 | { |
3529 | { |
2408 | ev_tstamp mn_prev = mn_now; |
3530 | ev_tstamp mn_prev = mn_now; |
2409 | |
3531 | |
2410 | ev_now_update (EV_A); |
3532 | ev_now_update (EV_A); |
2411 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3533 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2450 | w->pending = 0; |
3572 | w->pending = 0; |
2451 | } |
3573 | } |
2452 | } |
3574 | } |
2453 | |
3575 | |
2454 | int |
3576 | int |
2455 | ev_clear_pending (EV_P_ void *w) |
3577 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2456 | { |
3578 | { |
2457 | W w_ = (W)w; |
3579 | W w_ = (W)w; |
2458 | int pending = w_->pending; |
3580 | int pending = w_->pending; |
2459 | |
3581 | |
2460 | if (expect_true (pending)) |
3582 | if (expect_true (pending)) |
… | |
… | |
2493 | } |
3615 | } |
2494 | |
3616 | |
2495 | /*****************************************************************************/ |
3617 | /*****************************************************************************/ |
2496 | |
3618 | |
2497 | void noinline |
3619 | void noinline |
2498 | ev_io_start (EV_P_ ev_io *w) |
3620 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2499 | { |
3621 | { |
2500 | int fd = w->fd; |
3622 | int fd = w->fd; |
2501 | |
3623 | |
2502 | if (expect_false (ev_is_active (w))) |
3624 | if (expect_false (ev_is_active (w))) |
2503 | return; |
3625 | return; |
2504 | |
3626 | |
2505 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3627 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2506 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3628 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2507 | |
3629 | |
2508 | EV_FREQUENT_CHECK; |
3630 | EV_FREQUENT_CHECK; |
2509 | |
3631 | |
2510 | ev_start (EV_A_ (W)w, 1); |
3632 | ev_start (EV_A_ (W)w, 1); |
2511 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3633 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2512 | wlist_add (&anfds[fd].head, (WL)w); |
3634 | wlist_add (&anfds[fd].head, (WL)w); |
2513 | |
3635 | |
|
|
3636 | /* common bug, apparently */ |
|
|
3637 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3638 | |
2514 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3639 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2515 | w->events &= ~EV__IOFDSET; |
3640 | w->events &= ~EV__IOFDSET; |
2516 | |
3641 | |
2517 | EV_FREQUENT_CHECK; |
3642 | EV_FREQUENT_CHECK; |
2518 | } |
3643 | } |
2519 | |
3644 | |
2520 | void noinline |
3645 | void noinline |
2521 | ev_io_stop (EV_P_ ev_io *w) |
3646 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2522 | { |
3647 | { |
2523 | clear_pending (EV_A_ (W)w); |
3648 | clear_pending (EV_A_ (W)w); |
2524 | if (expect_false (!ev_is_active (w))) |
3649 | if (expect_false (!ev_is_active (w))) |
2525 | return; |
3650 | return; |
2526 | |
3651 | |
… | |
… | |
2529 | EV_FREQUENT_CHECK; |
3654 | EV_FREQUENT_CHECK; |
2530 | |
3655 | |
2531 | wlist_del (&anfds[w->fd].head, (WL)w); |
3656 | wlist_del (&anfds[w->fd].head, (WL)w); |
2532 | ev_stop (EV_A_ (W)w); |
3657 | ev_stop (EV_A_ (W)w); |
2533 | |
3658 | |
2534 | fd_change (EV_A_ w->fd, 1); |
3659 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2535 | |
3660 | |
2536 | EV_FREQUENT_CHECK; |
3661 | EV_FREQUENT_CHECK; |
2537 | } |
3662 | } |
2538 | |
3663 | |
2539 | void noinline |
3664 | void noinline |
2540 | ev_timer_start (EV_P_ ev_timer *w) |
3665 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2541 | { |
3666 | { |
2542 | if (expect_false (ev_is_active (w))) |
3667 | if (expect_false (ev_is_active (w))) |
2543 | return; |
3668 | return; |
2544 | |
3669 | |
2545 | ev_at (w) += mn_now; |
3670 | ev_at (w) += mn_now; |
… | |
… | |
2559 | |
3684 | |
2560 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3685 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2561 | } |
3686 | } |
2562 | |
3687 | |
2563 | void noinline |
3688 | void noinline |
2564 | ev_timer_stop (EV_P_ ev_timer *w) |
3689 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2565 | { |
3690 | { |
2566 | clear_pending (EV_A_ (W)w); |
3691 | clear_pending (EV_A_ (W)w); |
2567 | if (expect_false (!ev_is_active (w))) |
3692 | if (expect_false (!ev_is_active (w))) |
2568 | return; |
3693 | return; |
2569 | |
3694 | |
… | |
… | |
2581 | timers [active] = timers [timercnt + HEAP0]; |
3706 | timers [active] = timers [timercnt + HEAP0]; |
2582 | adjustheap (timers, timercnt, active); |
3707 | adjustheap (timers, timercnt, active); |
2583 | } |
3708 | } |
2584 | } |
3709 | } |
2585 | |
3710 | |
2586 | EV_FREQUENT_CHECK; |
|
|
2587 | |
|
|
2588 | ev_at (w) -= mn_now; |
3711 | ev_at (w) -= mn_now; |
2589 | |
3712 | |
2590 | ev_stop (EV_A_ (W)w); |
3713 | ev_stop (EV_A_ (W)w); |
|
|
3714 | |
|
|
3715 | EV_FREQUENT_CHECK; |
2591 | } |
3716 | } |
2592 | |
3717 | |
2593 | void noinline |
3718 | void noinline |
2594 | ev_timer_again (EV_P_ ev_timer *w) |
3719 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2595 | { |
3720 | { |
2596 | EV_FREQUENT_CHECK; |
3721 | EV_FREQUENT_CHECK; |
|
|
3722 | |
|
|
3723 | clear_pending (EV_A_ (W)w); |
2597 | |
3724 | |
2598 | if (ev_is_active (w)) |
3725 | if (ev_is_active (w)) |
2599 | { |
3726 | { |
2600 | if (w->repeat) |
3727 | if (w->repeat) |
2601 | { |
3728 | { |
… | |
… | |
2614 | |
3741 | |
2615 | EV_FREQUENT_CHECK; |
3742 | EV_FREQUENT_CHECK; |
2616 | } |
3743 | } |
2617 | |
3744 | |
2618 | ev_tstamp |
3745 | ev_tstamp |
2619 | ev_timer_remaining (EV_P_ ev_timer *w) |
3746 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2620 | { |
3747 | { |
2621 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3748 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2622 | } |
3749 | } |
2623 | |
3750 | |
2624 | #if EV_PERIODIC_ENABLE |
3751 | #if EV_PERIODIC_ENABLE |
2625 | void noinline |
3752 | void noinline |
2626 | ev_periodic_start (EV_P_ ev_periodic *w) |
3753 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2627 | { |
3754 | { |
2628 | if (expect_false (ev_is_active (w))) |
3755 | if (expect_false (ev_is_active (w))) |
2629 | return; |
3756 | return; |
2630 | |
3757 | |
2631 | if (w->reschedule_cb) |
3758 | if (w->reschedule_cb) |
2632 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3759 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2633 | else if (w->interval) |
3760 | else if (w->interval) |
2634 | { |
3761 | { |
2635 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3762 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2636 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3763 | periodic_recalc (EV_A_ w); |
2637 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2638 | } |
3764 | } |
2639 | else |
3765 | else |
2640 | ev_at (w) = w->offset; |
3766 | ev_at (w) = w->offset; |
2641 | |
3767 | |
2642 | EV_FREQUENT_CHECK; |
3768 | EV_FREQUENT_CHECK; |
… | |
… | |
2652 | |
3778 | |
2653 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3779 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2654 | } |
3780 | } |
2655 | |
3781 | |
2656 | void noinline |
3782 | void noinline |
2657 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3783 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2658 | { |
3784 | { |
2659 | clear_pending (EV_A_ (W)w); |
3785 | clear_pending (EV_A_ (W)w); |
2660 | if (expect_false (!ev_is_active (w))) |
3786 | if (expect_false (!ev_is_active (w))) |
2661 | return; |
3787 | return; |
2662 | |
3788 | |
… | |
… | |
2674 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3800 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2675 | adjustheap (periodics, periodiccnt, active); |
3801 | adjustheap (periodics, periodiccnt, active); |
2676 | } |
3802 | } |
2677 | } |
3803 | } |
2678 | |
3804 | |
2679 | EV_FREQUENT_CHECK; |
|
|
2680 | |
|
|
2681 | ev_stop (EV_A_ (W)w); |
3805 | ev_stop (EV_A_ (W)w); |
|
|
3806 | |
|
|
3807 | EV_FREQUENT_CHECK; |
2682 | } |
3808 | } |
2683 | |
3809 | |
2684 | void noinline |
3810 | void noinline |
2685 | ev_periodic_again (EV_P_ ev_periodic *w) |
3811 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2686 | { |
3812 | { |
2687 | /* TODO: use adjustheap and recalculation */ |
3813 | /* TODO: use adjustheap and recalculation */ |
2688 | ev_periodic_stop (EV_A_ w); |
3814 | ev_periodic_stop (EV_A_ w); |
2689 | ev_periodic_start (EV_A_ w); |
3815 | ev_periodic_start (EV_A_ w); |
2690 | } |
3816 | } |
… | |
… | |
2692 | |
3818 | |
2693 | #ifndef SA_RESTART |
3819 | #ifndef SA_RESTART |
2694 | # define SA_RESTART 0 |
3820 | # define SA_RESTART 0 |
2695 | #endif |
3821 | #endif |
2696 | |
3822 | |
|
|
3823 | #if EV_SIGNAL_ENABLE |
|
|
3824 | |
2697 | void noinline |
3825 | void noinline |
2698 | ev_signal_start (EV_P_ ev_signal *w) |
3826 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2699 | { |
3827 | { |
2700 | if (expect_false (ev_is_active (w))) |
3828 | if (expect_false (ev_is_active (w))) |
2701 | return; |
3829 | return; |
2702 | |
3830 | |
2703 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3831 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2705 | #if EV_MULTIPLICITY |
3833 | #if EV_MULTIPLICITY |
2706 | assert (("libev: a signal must not be attached to two different loops", |
3834 | assert (("libev: a signal must not be attached to two different loops", |
2707 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3835 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2708 | |
3836 | |
2709 | signals [w->signum - 1].loop = EV_A; |
3837 | signals [w->signum - 1].loop = EV_A; |
|
|
3838 | ECB_MEMORY_FENCE_RELEASE; |
2710 | #endif |
3839 | #endif |
2711 | |
3840 | |
2712 | EV_FREQUENT_CHECK; |
3841 | EV_FREQUENT_CHECK; |
2713 | |
3842 | |
2714 | #if EV_USE_SIGNALFD |
3843 | #if EV_USE_SIGNALFD |
… | |
… | |
2747 | if (!((WL)w)->next) |
3876 | if (!((WL)w)->next) |
2748 | # if EV_USE_SIGNALFD |
3877 | # if EV_USE_SIGNALFD |
2749 | if (sigfd < 0) /*TODO*/ |
3878 | if (sigfd < 0) /*TODO*/ |
2750 | # endif |
3879 | # endif |
2751 | { |
3880 | { |
2752 | # if _WIN32 |
3881 | # ifdef _WIN32 |
2753 | evpipe_init (EV_A); |
3882 | evpipe_init (EV_A); |
2754 | |
3883 | |
2755 | signal (w->signum, ev_sighandler); |
3884 | signal (w->signum, ev_sighandler); |
2756 | # else |
3885 | # else |
2757 | struct sigaction sa; |
3886 | struct sigaction sa; |
… | |
… | |
2761 | sa.sa_handler = ev_sighandler; |
3890 | sa.sa_handler = ev_sighandler; |
2762 | sigfillset (&sa.sa_mask); |
3891 | sigfillset (&sa.sa_mask); |
2763 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3892 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2764 | sigaction (w->signum, &sa, 0); |
3893 | sigaction (w->signum, &sa, 0); |
2765 | |
3894 | |
|
|
3895 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3896 | { |
2766 | sigemptyset (&sa.sa_mask); |
3897 | sigemptyset (&sa.sa_mask); |
2767 | sigaddset (&sa.sa_mask, w->signum); |
3898 | sigaddset (&sa.sa_mask, w->signum); |
2768 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
3899 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3900 | } |
2769 | #endif |
3901 | #endif |
2770 | } |
3902 | } |
2771 | |
3903 | |
2772 | EV_FREQUENT_CHECK; |
3904 | EV_FREQUENT_CHECK; |
2773 | } |
3905 | } |
2774 | |
3906 | |
2775 | void noinline |
3907 | void noinline |
2776 | ev_signal_stop (EV_P_ ev_signal *w) |
3908 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2777 | { |
3909 | { |
2778 | clear_pending (EV_A_ (W)w); |
3910 | clear_pending (EV_A_ (W)w); |
2779 | if (expect_false (!ev_is_active (w))) |
3911 | if (expect_false (!ev_is_active (w))) |
2780 | return; |
3912 | return; |
2781 | |
3913 | |
… | |
… | |
2807 | } |
3939 | } |
2808 | |
3940 | |
2809 | EV_FREQUENT_CHECK; |
3941 | EV_FREQUENT_CHECK; |
2810 | } |
3942 | } |
2811 | |
3943 | |
|
|
3944 | #endif |
|
|
3945 | |
|
|
3946 | #if EV_CHILD_ENABLE |
|
|
3947 | |
2812 | void |
3948 | void |
2813 | ev_child_start (EV_P_ ev_child *w) |
3949 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2814 | { |
3950 | { |
2815 | #if EV_MULTIPLICITY |
3951 | #if EV_MULTIPLICITY |
2816 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3952 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2817 | #endif |
3953 | #endif |
2818 | if (expect_false (ev_is_active (w))) |
3954 | if (expect_false (ev_is_active (w))) |
2819 | return; |
3955 | return; |
2820 | |
3956 | |
2821 | EV_FREQUENT_CHECK; |
3957 | EV_FREQUENT_CHECK; |
2822 | |
3958 | |
2823 | ev_start (EV_A_ (W)w, 1); |
3959 | ev_start (EV_A_ (W)w, 1); |
2824 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3960 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2825 | |
3961 | |
2826 | EV_FREQUENT_CHECK; |
3962 | EV_FREQUENT_CHECK; |
2827 | } |
3963 | } |
2828 | |
3964 | |
2829 | void |
3965 | void |
2830 | ev_child_stop (EV_P_ ev_child *w) |
3966 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2831 | { |
3967 | { |
2832 | clear_pending (EV_A_ (W)w); |
3968 | clear_pending (EV_A_ (W)w); |
2833 | if (expect_false (!ev_is_active (w))) |
3969 | if (expect_false (!ev_is_active (w))) |
2834 | return; |
3970 | return; |
2835 | |
3971 | |
2836 | EV_FREQUENT_CHECK; |
3972 | EV_FREQUENT_CHECK; |
2837 | |
3973 | |
2838 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3974 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2839 | ev_stop (EV_A_ (W)w); |
3975 | ev_stop (EV_A_ (W)w); |
2840 | |
3976 | |
2841 | EV_FREQUENT_CHECK; |
3977 | EV_FREQUENT_CHECK; |
2842 | } |
3978 | } |
|
|
3979 | |
|
|
3980 | #endif |
2843 | |
3981 | |
2844 | #if EV_STAT_ENABLE |
3982 | #if EV_STAT_ENABLE |
2845 | |
3983 | |
2846 | # ifdef _WIN32 |
3984 | # ifdef _WIN32 |
2847 | # undef lstat |
3985 | # undef lstat |
… | |
… | |
2853 | #define MIN_STAT_INTERVAL 0.1074891 |
3991 | #define MIN_STAT_INTERVAL 0.1074891 |
2854 | |
3992 | |
2855 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3993 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2856 | |
3994 | |
2857 | #if EV_USE_INOTIFY |
3995 | #if EV_USE_INOTIFY |
2858 | # define EV_INOTIFY_BUFSIZE 8192 |
3996 | |
|
|
3997 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3998 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2859 | |
3999 | |
2860 | static void noinline |
4000 | static void noinline |
2861 | infy_add (EV_P_ ev_stat *w) |
4001 | infy_add (EV_P_ ev_stat *w) |
2862 | { |
4002 | { |
2863 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
4003 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4004 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4005 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4006 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2864 | |
4007 | |
2865 | if (w->wd >= 0) |
4008 | if (w->wd >= 0) |
2866 | { |
4009 | { |
2867 | struct statfs sfs; |
4010 | struct statfs sfs; |
2868 | |
4011 | |
… | |
… | |
2872 | |
4015 | |
2873 | if (!fs_2625) |
4016 | if (!fs_2625) |
2874 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4017 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2875 | else if (!statfs (w->path, &sfs) |
4018 | else if (!statfs (w->path, &sfs) |
2876 | && (sfs.f_type == 0x1373 /* devfs */ |
4019 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4020 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4021 | || sfs.f_type == 0x4d44 /* msdos */ |
2877 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4022 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4023 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4024 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4025 | || sfs.f_type == 0x5346544e /* ntfs */ |
2878 | || sfs.f_type == 0x3153464a /* jfs */ |
4026 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4027 | || sfs.f_type == 0x9123683e /* btrfs */ |
2879 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4028 | || sfs.f_type == 0x52654973 /* reiser3 */ |
2880 | || sfs.f_type == 0x01021994 /* tempfs */ |
4029 | || sfs.f_type == 0x01021994 /* tmpfs */ |
2881 | || sfs.f_type == 0x58465342 /* xfs */)) |
4030 | || sfs.f_type == 0x58465342 /* xfs */)) |
2882 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4031 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
2883 | else |
4032 | else |
2884 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4033 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2885 | } |
4034 | } |
… | |
… | |
2906 | if (!pend || pend == path) |
4055 | if (!pend || pend == path) |
2907 | break; |
4056 | break; |
2908 | |
4057 | |
2909 | *pend = 0; |
4058 | *pend = 0; |
2910 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4059 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2911 | } |
4060 | } |
2912 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4061 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2913 | } |
4062 | } |
2914 | } |
4063 | } |
2915 | |
4064 | |
2916 | if (w->wd >= 0) |
4065 | if (w->wd >= 0) |
2917 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4066 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2918 | |
4067 | |
2919 | /* now re-arm timer, if required */ |
4068 | /* now re-arm timer, if required */ |
2920 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4069 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2921 | ev_timer_again (EV_A_ &w->timer); |
4070 | ev_timer_again (EV_A_ &w->timer); |
2922 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4071 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
… | |
… | |
2930 | |
4079 | |
2931 | if (wd < 0) |
4080 | if (wd < 0) |
2932 | return; |
4081 | return; |
2933 | |
4082 | |
2934 | w->wd = -2; |
4083 | w->wd = -2; |
2935 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4084 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2936 | wlist_del (&fs_hash [slot].head, (WL)w); |
4085 | wlist_del (&fs_hash [slot].head, (WL)w); |
2937 | |
4086 | |
2938 | /* remove this watcher, if others are watching it, they will rearm */ |
4087 | /* remove this watcher, if others are watching it, they will rearm */ |
2939 | inotify_rm_watch (fs_fd, wd); |
4088 | inotify_rm_watch (fs_fd, wd); |
2940 | } |
4089 | } |
… | |
… | |
2942 | static void noinline |
4091 | static void noinline |
2943 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4092 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2944 | { |
4093 | { |
2945 | if (slot < 0) |
4094 | if (slot < 0) |
2946 | /* overflow, need to check for all hash slots */ |
4095 | /* overflow, need to check for all hash slots */ |
2947 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4096 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2948 | infy_wd (EV_A_ slot, wd, ev); |
4097 | infy_wd (EV_A_ slot, wd, ev); |
2949 | else |
4098 | else |
2950 | { |
4099 | { |
2951 | WL w_; |
4100 | WL w_; |
2952 | |
4101 | |
2953 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4102 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2954 | { |
4103 | { |
2955 | ev_stat *w = (ev_stat *)w_; |
4104 | ev_stat *w = (ev_stat *)w_; |
2956 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4105 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2957 | |
4106 | |
2958 | if (w->wd == wd || wd == -1) |
4107 | if (w->wd == wd || wd == -1) |
2959 | { |
4108 | { |
2960 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4109 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2961 | { |
4110 | { |
2962 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4111 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2963 | w->wd = -1; |
4112 | w->wd = -1; |
2964 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4113 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2965 | } |
4114 | } |
2966 | |
4115 | |
2967 | stat_timer_cb (EV_A_ &w->timer, 0); |
4116 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2972 | |
4121 | |
2973 | static void |
4122 | static void |
2974 | infy_cb (EV_P_ ev_io *w, int revents) |
4123 | infy_cb (EV_P_ ev_io *w, int revents) |
2975 | { |
4124 | { |
2976 | char buf [EV_INOTIFY_BUFSIZE]; |
4125 | char buf [EV_INOTIFY_BUFSIZE]; |
2977 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2978 | int ofs; |
4126 | int ofs; |
2979 | int len = read (fs_fd, buf, sizeof (buf)); |
4127 | int len = read (fs_fd, buf, sizeof (buf)); |
2980 | |
4128 | |
2981 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4129 | for (ofs = 0; ofs < len; ) |
|
|
4130 | { |
|
|
4131 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2982 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4132 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4133 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4134 | } |
2983 | } |
4135 | } |
2984 | |
4136 | |
2985 | inline_size void |
4137 | inline_size void ecb_cold |
2986 | check_2625 (EV_P) |
4138 | ev_check_2625 (EV_P) |
2987 | { |
4139 | { |
2988 | /* kernels < 2.6.25 are borked |
4140 | /* kernels < 2.6.25 are borked |
2989 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4141 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2990 | */ |
4142 | */ |
2991 | struct utsname buf; |
4143 | if (ev_linux_version () < 0x020619) |
2992 | int major, minor, micro; |
|
|
2993 | |
|
|
2994 | if (uname (&buf)) |
|
|
2995 | return; |
|
|
2996 | |
|
|
2997 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2998 | return; |
|
|
2999 | |
|
|
3000 | if (major < 2 |
|
|
3001 | || (major == 2 && minor < 6) |
|
|
3002 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
3003 | return; |
4144 | return; |
3004 | |
4145 | |
3005 | fs_2625 = 1; |
4146 | fs_2625 = 1; |
3006 | } |
4147 | } |
3007 | |
4148 | |
3008 | inline_size int |
4149 | inline_size int |
3009 | infy_newfd (void) |
4150 | infy_newfd (void) |
3010 | { |
4151 | { |
3011 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4152 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3012 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4153 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3013 | if (fd >= 0) |
4154 | if (fd >= 0) |
3014 | return fd; |
4155 | return fd; |
3015 | #endif |
4156 | #endif |
3016 | return inotify_init (); |
4157 | return inotify_init (); |
… | |
… | |
3022 | if (fs_fd != -2) |
4163 | if (fs_fd != -2) |
3023 | return; |
4164 | return; |
3024 | |
4165 | |
3025 | fs_fd = -1; |
4166 | fs_fd = -1; |
3026 | |
4167 | |
3027 | check_2625 (EV_A); |
4168 | ev_check_2625 (EV_A); |
3028 | |
4169 | |
3029 | fs_fd = infy_newfd (); |
4170 | fs_fd = infy_newfd (); |
3030 | |
4171 | |
3031 | if (fs_fd >= 0) |
4172 | if (fs_fd >= 0) |
3032 | { |
4173 | { |
… | |
… | |
3057 | ev_io_set (&fs_w, fs_fd, EV_READ); |
4198 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3058 | ev_io_start (EV_A_ &fs_w); |
4199 | ev_io_start (EV_A_ &fs_w); |
3059 | ev_unref (EV_A); |
4200 | ev_unref (EV_A); |
3060 | } |
4201 | } |
3061 | |
4202 | |
3062 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4203 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3063 | { |
4204 | { |
3064 | WL w_ = fs_hash [slot].head; |
4205 | WL w_ = fs_hash [slot].head; |
3065 | fs_hash [slot].head = 0; |
4206 | fs_hash [slot].head = 0; |
3066 | |
4207 | |
3067 | while (w_) |
4208 | while (w_) |
… | |
… | |
3091 | #else |
4232 | #else |
3092 | # define EV_LSTAT(p,b) lstat (p, b) |
4233 | # define EV_LSTAT(p,b) lstat (p, b) |
3093 | #endif |
4234 | #endif |
3094 | |
4235 | |
3095 | void |
4236 | void |
3096 | ev_stat_stat (EV_P_ ev_stat *w) |
4237 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3097 | { |
4238 | { |
3098 | if (lstat (w->path, &w->attr) < 0) |
4239 | if (lstat (w->path, &w->attr) < 0) |
3099 | w->attr.st_nlink = 0; |
4240 | w->attr.st_nlink = 0; |
3100 | else if (!w->attr.st_nlink) |
4241 | else if (!w->attr.st_nlink) |
3101 | w->attr.st_nlink = 1; |
4242 | w->attr.st_nlink = 1; |
… | |
… | |
3140 | ev_feed_event (EV_A_ w, EV_STAT); |
4281 | ev_feed_event (EV_A_ w, EV_STAT); |
3141 | } |
4282 | } |
3142 | } |
4283 | } |
3143 | |
4284 | |
3144 | void |
4285 | void |
3145 | ev_stat_start (EV_P_ ev_stat *w) |
4286 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3146 | { |
4287 | { |
3147 | if (expect_false (ev_is_active (w))) |
4288 | if (expect_false (ev_is_active (w))) |
3148 | return; |
4289 | return; |
3149 | |
4290 | |
3150 | ev_stat_stat (EV_A_ w); |
4291 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3171 | |
4312 | |
3172 | EV_FREQUENT_CHECK; |
4313 | EV_FREQUENT_CHECK; |
3173 | } |
4314 | } |
3174 | |
4315 | |
3175 | void |
4316 | void |
3176 | ev_stat_stop (EV_P_ ev_stat *w) |
4317 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3177 | { |
4318 | { |
3178 | clear_pending (EV_A_ (W)w); |
4319 | clear_pending (EV_A_ (W)w); |
3179 | if (expect_false (!ev_is_active (w))) |
4320 | if (expect_false (!ev_is_active (w))) |
3180 | return; |
4321 | return; |
3181 | |
4322 | |
… | |
… | |
3197 | } |
4338 | } |
3198 | #endif |
4339 | #endif |
3199 | |
4340 | |
3200 | #if EV_IDLE_ENABLE |
4341 | #if EV_IDLE_ENABLE |
3201 | void |
4342 | void |
3202 | ev_idle_start (EV_P_ ev_idle *w) |
4343 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3203 | { |
4344 | { |
3204 | if (expect_false (ev_is_active (w))) |
4345 | if (expect_false (ev_is_active (w))) |
3205 | return; |
4346 | return; |
3206 | |
4347 | |
3207 | pri_adjust (EV_A_ (W)w); |
4348 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3220 | |
4361 | |
3221 | EV_FREQUENT_CHECK; |
4362 | EV_FREQUENT_CHECK; |
3222 | } |
4363 | } |
3223 | |
4364 | |
3224 | void |
4365 | void |
3225 | ev_idle_stop (EV_P_ ev_idle *w) |
4366 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3226 | { |
4367 | { |
3227 | clear_pending (EV_A_ (W)w); |
4368 | clear_pending (EV_A_ (W)w); |
3228 | if (expect_false (!ev_is_active (w))) |
4369 | if (expect_false (!ev_is_active (w))) |
3229 | return; |
4370 | return; |
3230 | |
4371 | |
… | |
… | |
3242 | |
4383 | |
3243 | EV_FREQUENT_CHECK; |
4384 | EV_FREQUENT_CHECK; |
3244 | } |
4385 | } |
3245 | #endif |
4386 | #endif |
3246 | |
4387 | |
|
|
4388 | #if EV_PREPARE_ENABLE |
3247 | void |
4389 | void |
3248 | ev_prepare_start (EV_P_ ev_prepare *w) |
4390 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3249 | { |
4391 | { |
3250 | if (expect_false (ev_is_active (w))) |
4392 | if (expect_false (ev_is_active (w))) |
3251 | return; |
4393 | return; |
3252 | |
4394 | |
3253 | EV_FREQUENT_CHECK; |
4395 | EV_FREQUENT_CHECK; |
… | |
… | |
3258 | |
4400 | |
3259 | EV_FREQUENT_CHECK; |
4401 | EV_FREQUENT_CHECK; |
3260 | } |
4402 | } |
3261 | |
4403 | |
3262 | void |
4404 | void |
3263 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4405 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3264 | { |
4406 | { |
3265 | clear_pending (EV_A_ (W)w); |
4407 | clear_pending (EV_A_ (W)w); |
3266 | if (expect_false (!ev_is_active (w))) |
4408 | if (expect_false (!ev_is_active (w))) |
3267 | return; |
4409 | return; |
3268 | |
4410 | |
… | |
… | |
3277 | |
4419 | |
3278 | ev_stop (EV_A_ (W)w); |
4420 | ev_stop (EV_A_ (W)w); |
3279 | |
4421 | |
3280 | EV_FREQUENT_CHECK; |
4422 | EV_FREQUENT_CHECK; |
3281 | } |
4423 | } |
|
|
4424 | #endif |
3282 | |
4425 | |
|
|
4426 | #if EV_CHECK_ENABLE |
3283 | void |
4427 | void |
3284 | ev_check_start (EV_P_ ev_check *w) |
4428 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3285 | { |
4429 | { |
3286 | if (expect_false (ev_is_active (w))) |
4430 | if (expect_false (ev_is_active (w))) |
3287 | return; |
4431 | return; |
3288 | |
4432 | |
3289 | EV_FREQUENT_CHECK; |
4433 | EV_FREQUENT_CHECK; |
… | |
… | |
3294 | |
4438 | |
3295 | EV_FREQUENT_CHECK; |
4439 | EV_FREQUENT_CHECK; |
3296 | } |
4440 | } |
3297 | |
4441 | |
3298 | void |
4442 | void |
3299 | ev_check_stop (EV_P_ ev_check *w) |
4443 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3300 | { |
4444 | { |
3301 | clear_pending (EV_A_ (W)w); |
4445 | clear_pending (EV_A_ (W)w); |
3302 | if (expect_false (!ev_is_active (w))) |
4446 | if (expect_false (!ev_is_active (w))) |
3303 | return; |
4447 | return; |
3304 | |
4448 | |
… | |
… | |
3313 | |
4457 | |
3314 | ev_stop (EV_A_ (W)w); |
4458 | ev_stop (EV_A_ (W)w); |
3315 | |
4459 | |
3316 | EV_FREQUENT_CHECK; |
4460 | EV_FREQUENT_CHECK; |
3317 | } |
4461 | } |
|
|
4462 | #endif |
3318 | |
4463 | |
3319 | #if EV_EMBED_ENABLE |
4464 | #if EV_EMBED_ENABLE |
3320 | void noinline |
4465 | void noinline |
3321 | ev_embed_sweep (EV_P_ ev_embed *w) |
4466 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3322 | { |
4467 | { |
3323 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4468 | ev_run (w->other, EVRUN_NOWAIT); |
3324 | } |
4469 | } |
3325 | |
4470 | |
3326 | static void |
4471 | static void |
3327 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4472 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3328 | { |
4473 | { |
3329 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4474 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3330 | |
4475 | |
3331 | if (ev_cb (w)) |
4476 | if (ev_cb (w)) |
3332 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4477 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3333 | else |
4478 | else |
3334 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4479 | ev_run (w->other, EVRUN_NOWAIT); |
3335 | } |
4480 | } |
3336 | |
4481 | |
3337 | static void |
4482 | static void |
3338 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4483 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3339 | { |
4484 | { |
… | |
… | |
3343 | EV_P = w->other; |
4488 | EV_P = w->other; |
3344 | |
4489 | |
3345 | while (fdchangecnt) |
4490 | while (fdchangecnt) |
3346 | { |
4491 | { |
3347 | fd_reify (EV_A); |
4492 | fd_reify (EV_A); |
3348 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4493 | ev_run (EV_A_ EVRUN_NOWAIT); |
3349 | } |
4494 | } |
3350 | } |
4495 | } |
3351 | } |
4496 | } |
3352 | |
4497 | |
3353 | static void |
4498 | static void |
… | |
… | |
3359 | |
4504 | |
3360 | { |
4505 | { |
3361 | EV_P = w->other; |
4506 | EV_P = w->other; |
3362 | |
4507 | |
3363 | ev_loop_fork (EV_A); |
4508 | ev_loop_fork (EV_A); |
3364 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4509 | ev_run (EV_A_ EVRUN_NOWAIT); |
3365 | } |
4510 | } |
3366 | |
4511 | |
3367 | ev_embed_start (EV_A_ w); |
4512 | ev_embed_start (EV_A_ w); |
3368 | } |
4513 | } |
3369 | |
4514 | |
… | |
… | |
3374 | ev_idle_stop (EV_A_ idle); |
4519 | ev_idle_stop (EV_A_ idle); |
3375 | } |
4520 | } |
3376 | #endif |
4521 | #endif |
3377 | |
4522 | |
3378 | void |
4523 | void |
3379 | ev_embed_start (EV_P_ ev_embed *w) |
4524 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3380 | { |
4525 | { |
3381 | if (expect_false (ev_is_active (w))) |
4526 | if (expect_false (ev_is_active (w))) |
3382 | return; |
4527 | return; |
3383 | |
4528 | |
3384 | { |
4529 | { |
… | |
… | |
3405 | |
4550 | |
3406 | EV_FREQUENT_CHECK; |
4551 | EV_FREQUENT_CHECK; |
3407 | } |
4552 | } |
3408 | |
4553 | |
3409 | void |
4554 | void |
3410 | ev_embed_stop (EV_P_ ev_embed *w) |
4555 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3411 | { |
4556 | { |
3412 | clear_pending (EV_A_ (W)w); |
4557 | clear_pending (EV_A_ (W)w); |
3413 | if (expect_false (!ev_is_active (w))) |
4558 | if (expect_false (!ev_is_active (w))) |
3414 | return; |
4559 | return; |
3415 | |
4560 | |
… | |
… | |
3417 | |
4562 | |
3418 | ev_io_stop (EV_A_ &w->io); |
4563 | ev_io_stop (EV_A_ &w->io); |
3419 | ev_prepare_stop (EV_A_ &w->prepare); |
4564 | ev_prepare_stop (EV_A_ &w->prepare); |
3420 | ev_fork_stop (EV_A_ &w->fork); |
4565 | ev_fork_stop (EV_A_ &w->fork); |
3421 | |
4566 | |
|
|
4567 | ev_stop (EV_A_ (W)w); |
|
|
4568 | |
3422 | EV_FREQUENT_CHECK; |
4569 | EV_FREQUENT_CHECK; |
3423 | } |
4570 | } |
3424 | #endif |
4571 | #endif |
3425 | |
4572 | |
3426 | #if EV_FORK_ENABLE |
4573 | #if EV_FORK_ENABLE |
3427 | void |
4574 | void |
3428 | ev_fork_start (EV_P_ ev_fork *w) |
4575 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3429 | { |
4576 | { |
3430 | if (expect_false (ev_is_active (w))) |
4577 | if (expect_false (ev_is_active (w))) |
3431 | return; |
4578 | return; |
3432 | |
4579 | |
3433 | EV_FREQUENT_CHECK; |
4580 | EV_FREQUENT_CHECK; |
… | |
… | |
3438 | |
4585 | |
3439 | EV_FREQUENT_CHECK; |
4586 | EV_FREQUENT_CHECK; |
3440 | } |
4587 | } |
3441 | |
4588 | |
3442 | void |
4589 | void |
3443 | ev_fork_stop (EV_P_ ev_fork *w) |
4590 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3444 | { |
4591 | { |
3445 | clear_pending (EV_A_ (W)w); |
4592 | clear_pending (EV_A_ (W)w); |
3446 | if (expect_false (!ev_is_active (w))) |
4593 | if (expect_false (!ev_is_active (w))) |
3447 | return; |
4594 | return; |
3448 | |
4595 | |
… | |
… | |
3459 | |
4606 | |
3460 | EV_FREQUENT_CHECK; |
4607 | EV_FREQUENT_CHECK; |
3461 | } |
4608 | } |
3462 | #endif |
4609 | #endif |
3463 | |
4610 | |
|
|
4611 | #if EV_CLEANUP_ENABLE |
|
|
4612 | void |
|
|
4613 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4614 | { |
|
|
4615 | if (expect_false (ev_is_active (w))) |
|
|
4616 | return; |
|
|
4617 | |
|
|
4618 | EV_FREQUENT_CHECK; |
|
|
4619 | |
|
|
4620 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4621 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4622 | cleanups [cleanupcnt - 1] = w; |
|
|
4623 | |
|
|
4624 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4625 | ev_unref (EV_A); |
|
|
4626 | EV_FREQUENT_CHECK; |
|
|
4627 | } |
|
|
4628 | |
|
|
4629 | void |
|
|
4630 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4631 | { |
|
|
4632 | clear_pending (EV_A_ (W)w); |
|
|
4633 | if (expect_false (!ev_is_active (w))) |
|
|
4634 | return; |
|
|
4635 | |
|
|
4636 | EV_FREQUENT_CHECK; |
|
|
4637 | ev_ref (EV_A); |
|
|
4638 | |
|
|
4639 | { |
|
|
4640 | int active = ev_active (w); |
|
|
4641 | |
|
|
4642 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4643 | ev_active (cleanups [active - 1]) = active; |
|
|
4644 | } |
|
|
4645 | |
|
|
4646 | ev_stop (EV_A_ (W)w); |
|
|
4647 | |
|
|
4648 | EV_FREQUENT_CHECK; |
|
|
4649 | } |
|
|
4650 | #endif |
|
|
4651 | |
3464 | #if EV_ASYNC_ENABLE |
4652 | #if EV_ASYNC_ENABLE |
3465 | void |
4653 | void |
3466 | ev_async_start (EV_P_ ev_async *w) |
4654 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3467 | { |
4655 | { |
3468 | if (expect_false (ev_is_active (w))) |
4656 | if (expect_false (ev_is_active (w))) |
3469 | return; |
4657 | return; |
|
|
4658 | |
|
|
4659 | w->sent = 0; |
3470 | |
4660 | |
3471 | evpipe_init (EV_A); |
4661 | evpipe_init (EV_A); |
3472 | |
4662 | |
3473 | EV_FREQUENT_CHECK; |
4663 | EV_FREQUENT_CHECK; |
3474 | |
4664 | |
… | |
… | |
3478 | |
4668 | |
3479 | EV_FREQUENT_CHECK; |
4669 | EV_FREQUENT_CHECK; |
3480 | } |
4670 | } |
3481 | |
4671 | |
3482 | void |
4672 | void |
3483 | ev_async_stop (EV_P_ ev_async *w) |
4673 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3484 | { |
4674 | { |
3485 | clear_pending (EV_A_ (W)w); |
4675 | clear_pending (EV_A_ (W)w); |
3486 | if (expect_false (!ev_is_active (w))) |
4676 | if (expect_false (!ev_is_active (w))) |
3487 | return; |
4677 | return; |
3488 | |
4678 | |
… | |
… | |
3499 | |
4689 | |
3500 | EV_FREQUENT_CHECK; |
4690 | EV_FREQUENT_CHECK; |
3501 | } |
4691 | } |
3502 | |
4692 | |
3503 | void |
4693 | void |
3504 | ev_async_send (EV_P_ ev_async *w) |
4694 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3505 | { |
4695 | { |
3506 | w->sent = 1; |
4696 | w->sent = 1; |
3507 | evpipe_write (EV_A_ &async_pending); |
4697 | evpipe_write (EV_A_ &async_pending); |
3508 | } |
4698 | } |
3509 | #endif |
4699 | #endif |
… | |
… | |
3546 | |
4736 | |
3547 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4737 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3548 | } |
4738 | } |
3549 | |
4739 | |
3550 | void |
4740 | void |
3551 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4741 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3552 | { |
4742 | { |
3553 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4743 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3554 | |
4744 | |
3555 | if (expect_false (!once)) |
4745 | if (expect_false (!once)) |
3556 | { |
4746 | { |
3557 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4747 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3558 | return; |
4748 | return; |
3559 | } |
4749 | } |
3560 | |
4750 | |
3561 | once->cb = cb; |
4751 | once->cb = cb; |
3562 | once->arg = arg; |
4752 | once->arg = arg; |
… | |
… | |
3577 | } |
4767 | } |
3578 | |
4768 | |
3579 | /*****************************************************************************/ |
4769 | /*****************************************************************************/ |
3580 | |
4770 | |
3581 | #if EV_WALK_ENABLE |
4771 | #if EV_WALK_ENABLE |
3582 | void |
4772 | void ecb_cold |
3583 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4773 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3584 | { |
4774 | { |
3585 | int i, j; |
4775 | int i, j; |
3586 | ev_watcher_list *wl, *wn; |
4776 | ev_watcher_list *wl, *wn; |
3587 | |
4777 | |
3588 | if (types & (EV_IO | EV_EMBED)) |
4778 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3631 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4821 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3632 | #endif |
4822 | #endif |
3633 | |
4823 | |
3634 | #if EV_IDLE_ENABLE |
4824 | #if EV_IDLE_ENABLE |
3635 | if (types & EV_IDLE) |
4825 | if (types & EV_IDLE) |
3636 | for (j = NUMPRI; i--; ) |
4826 | for (j = NUMPRI; j--; ) |
3637 | for (i = idlecnt [j]; i--; ) |
4827 | for (i = idlecnt [j]; i--; ) |
3638 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4828 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3639 | #endif |
4829 | #endif |
3640 | |
4830 | |
3641 | #if EV_FORK_ENABLE |
4831 | #if EV_FORK_ENABLE |
… | |
… | |
3649 | if (types & EV_ASYNC) |
4839 | if (types & EV_ASYNC) |
3650 | for (i = asynccnt; i--; ) |
4840 | for (i = asynccnt; i--; ) |
3651 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
4841 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3652 | #endif |
4842 | #endif |
3653 | |
4843 | |
|
|
4844 | #if EV_PREPARE_ENABLE |
3654 | if (types & EV_PREPARE) |
4845 | if (types & EV_PREPARE) |
3655 | for (i = preparecnt; i--; ) |
4846 | for (i = preparecnt; i--; ) |
3656 | #if EV_EMBED_ENABLE |
4847 | # if EV_EMBED_ENABLE |
3657 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
4848 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3658 | #endif |
4849 | # endif |
3659 | cb (EV_A_ EV_PREPARE, prepares [i]); |
4850 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4851 | #endif |
3660 | |
4852 | |
|
|
4853 | #if EV_CHECK_ENABLE |
3661 | if (types & EV_CHECK) |
4854 | if (types & EV_CHECK) |
3662 | for (i = checkcnt; i--; ) |
4855 | for (i = checkcnt; i--; ) |
3663 | cb (EV_A_ EV_CHECK, checks [i]); |
4856 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4857 | #endif |
3664 | |
4858 | |
|
|
4859 | #if EV_SIGNAL_ENABLE |
3665 | if (types & EV_SIGNAL) |
4860 | if (types & EV_SIGNAL) |
3666 | for (i = 0; i < EV_NSIG - 1; ++i) |
4861 | for (i = 0; i < EV_NSIG - 1; ++i) |
3667 | for (wl = signals [i].head; wl; ) |
4862 | for (wl = signals [i].head; wl; ) |
3668 | { |
4863 | { |
3669 | wn = wl->next; |
4864 | wn = wl->next; |
3670 | cb (EV_A_ EV_SIGNAL, wl); |
4865 | cb (EV_A_ EV_SIGNAL, wl); |
3671 | wl = wn; |
4866 | wl = wn; |
3672 | } |
4867 | } |
|
|
4868 | #endif |
3673 | |
4869 | |
|
|
4870 | #if EV_CHILD_ENABLE |
3674 | if (types & EV_CHILD) |
4871 | if (types & EV_CHILD) |
3675 | for (i = EV_PID_HASHSIZE; i--; ) |
4872 | for (i = (EV_PID_HASHSIZE); i--; ) |
3676 | for (wl = childs [i]; wl; ) |
4873 | for (wl = childs [i]; wl; ) |
3677 | { |
4874 | { |
3678 | wn = wl->next; |
4875 | wn = wl->next; |
3679 | cb (EV_A_ EV_CHILD, wl); |
4876 | cb (EV_A_ EV_CHILD, wl); |
3680 | wl = wn; |
4877 | wl = wn; |
3681 | } |
4878 | } |
|
|
4879 | #endif |
3682 | /* EV_STAT 0x00001000 /* stat data changed */ |
4880 | /* EV_STAT 0x00001000 /* stat data changed */ |
3683 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
4881 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3684 | } |
4882 | } |
3685 | #endif |
4883 | #endif |
3686 | |
4884 | |
3687 | #if EV_MULTIPLICITY |
4885 | #if EV_MULTIPLICITY |
3688 | #include "ev_wrap.h" |
4886 | #include "ev_wrap.h" |
3689 | #endif |
4887 | #endif |
3690 | |
4888 | |
3691 | #ifdef __cplusplus |
|
|
3692 | } |
|
|
3693 | #endif |
|
|
3694 | |
|
|