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 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
|
|
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
55 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
63 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
64 | # endif |
66 | # endif |
65 | |
67 | |
66 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
67 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
79 | # endif |
81 | # endif |
80 | # endif |
82 | # endif |
81 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
85 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
88 | # endif |
100 | # endif |
89 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
105 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
109 | # endif |
105 | |
110 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
109 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
112 | # endif |
118 | # endif |
113 | |
119 | |
|
|
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> |
|
|
168 | #include <string.h> |
158 | #include <fcntl.h> |
169 | #include <fcntl.h> |
159 | #include <stddef.h> |
170 | #include <stddef.h> |
160 | |
171 | |
161 | #include <stdio.h> |
172 | #include <stdio.h> |
162 | |
173 | |
163 | #include <assert.h> |
174 | #include <assert.h> |
164 | #include <errno.h> |
175 | #include <errno.h> |
165 | #include <sys/types.h> |
176 | #include <sys/types.h> |
166 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
167 | |
179 | |
168 | #include <signal.h> |
180 | #include <signal.h> |
169 | |
181 | |
170 | #ifdef EV_H |
182 | #ifdef EV_H |
171 | # include EV_H |
183 | # include EV_H |
172 | #else |
184 | #else |
173 | # 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 |
174 | #endif |
197 | #endif |
175 | |
198 | |
176 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
177 | # include <sys/time.h> |
200 | # include <sys/time.h> |
178 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
179 | # include <unistd.h> |
202 | # include <unistd.h> |
180 | #else |
203 | #else |
181 | # include <io.h> |
204 | # include <io.h> |
182 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
183 | # include <windows.h> |
207 | # include <windows.h> |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # endif |
210 | # endif |
|
|
211 | # undef EV_AVOID_STDIO |
187 | #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 |
188 | |
221 | |
189 | /* 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 */ |
190 | |
223 | |
191 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
192 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
193 | /* use what's provided */ |
226 | /* use what's provided */ |
194 | #elif defined (NSIG) |
227 | #elif defined NSIG |
195 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
196 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
197 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
198 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
199 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
200 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
201 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
202 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
203 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
204 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
205 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
206 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
207 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
208 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
210 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
212 | #else |
245 | #else |
213 | # error "unable to find value for NSIG, please report" |
246 | # error "unable to find value for NSIG, please report" |
214 | /* to make it compile regardless, just remove the above line */ |
247 | /* to make it compile regardless, just remove the above line, */ |
|
|
248 | /* but consider reporting it, too! :) */ |
215 | # define EV_NSIG 65 |
249 | # define EV_NSIG 65 |
|
|
250 | #endif |
|
|
251 | |
|
|
252 | #ifndef EV_USE_FLOOR |
|
|
253 | # define EV_USE_FLOOR 0 |
216 | #endif |
254 | #endif |
217 | |
255 | |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | # if __linux && __GLIBC__ >= 2 |
257 | # if __linux && __GLIBC__ >= 2 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
221 | # else |
259 | # else |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # endif |
261 | # endif |
224 | #endif |
262 | #endif |
225 | |
263 | |
226 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
227 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
228 | # define EV_USE_MONOTONIC 1 |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
229 | # else |
267 | # else |
230 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
231 | # endif |
269 | # endif |
232 | #endif |
270 | #endif |
233 | |
271 | |
… | |
… | |
235 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
273 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
236 | #endif |
274 | #endif |
237 | |
275 | |
238 | #ifndef EV_USE_NANOSLEEP |
276 | #ifndef EV_USE_NANOSLEEP |
239 | # if _POSIX_C_SOURCE >= 199309L |
277 | # if _POSIX_C_SOURCE >= 199309L |
240 | # define EV_USE_NANOSLEEP 1 |
278 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
241 | # else |
279 | # else |
242 | # define EV_USE_NANOSLEEP 0 |
280 | # define EV_USE_NANOSLEEP 0 |
243 | # endif |
281 | # endif |
244 | #endif |
282 | #endif |
245 | |
283 | |
246 | #ifndef EV_USE_SELECT |
284 | #ifndef EV_USE_SELECT |
247 | # define EV_USE_SELECT 1 |
285 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
248 | #endif |
286 | #endif |
249 | |
287 | |
250 | #ifndef EV_USE_POLL |
288 | #ifndef EV_USE_POLL |
251 | # ifdef _WIN32 |
289 | # ifdef _WIN32 |
252 | # define EV_USE_POLL 0 |
290 | # define EV_USE_POLL 0 |
253 | # else |
291 | # else |
254 | # define EV_USE_POLL 1 |
292 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
255 | # endif |
293 | # endif |
256 | #endif |
294 | #endif |
257 | |
295 | |
258 | #ifndef EV_USE_EPOLL |
296 | #ifndef EV_USE_EPOLL |
259 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
297 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
260 | # define EV_USE_EPOLL 1 |
298 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
261 | # else |
299 | # else |
262 | # define EV_USE_EPOLL 0 |
300 | # define EV_USE_EPOLL 0 |
263 | # endif |
301 | # endif |
264 | #endif |
302 | #endif |
265 | |
303 | |
… | |
… | |
271 | # define EV_USE_PORT 0 |
309 | # define EV_USE_PORT 0 |
272 | #endif |
310 | #endif |
273 | |
311 | |
274 | #ifndef EV_USE_INOTIFY |
312 | #ifndef EV_USE_INOTIFY |
275 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
276 | # define EV_USE_INOTIFY 1 |
314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
277 | # else |
315 | # else |
278 | # define EV_USE_INOTIFY 0 |
316 | # define EV_USE_INOTIFY 0 |
279 | # endif |
317 | # endif |
280 | #endif |
318 | #endif |
281 | |
319 | |
282 | #ifndef EV_PID_HASHSIZE |
320 | #ifndef EV_PID_HASHSIZE |
283 | # if EV_MINIMAL |
321 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
284 | # define EV_PID_HASHSIZE 1 |
|
|
285 | # else |
|
|
286 | # define EV_PID_HASHSIZE 16 |
|
|
287 | # endif |
|
|
288 | #endif |
322 | #endif |
289 | |
323 | |
290 | #ifndef EV_INOTIFY_HASHSIZE |
324 | #ifndef EV_INOTIFY_HASHSIZE |
291 | # if EV_MINIMAL |
325 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
292 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
293 | # else |
|
|
294 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
295 | # endif |
|
|
296 | #endif |
326 | #endif |
297 | |
327 | |
298 | #ifndef EV_USE_EVENTFD |
328 | #ifndef EV_USE_EVENTFD |
299 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
329 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
300 | # define EV_USE_EVENTFD 1 |
330 | # define EV_USE_EVENTFD EV_FEATURE_OS |
301 | # else |
331 | # else |
302 | # define EV_USE_EVENTFD 0 |
332 | # define EV_USE_EVENTFD 0 |
303 | # endif |
333 | # endif |
304 | #endif |
334 | #endif |
305 | |
335 | |
306 | #ifndef EV_USE_SIGNALFD |
336 | #ifndef EV_USE_SIGNALFD |
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
337 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
308 | # define EV_USE_SIGNALFD 1 |
338 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
309 | # else |
339 | # else |
310 | # define EV_USE_SIGNALFD 0 |
340 | # define EV_USE_SIGNALFD 0 |
311 | # endif |
341 | # endif |
312 | #endif |
342 | #endif |
313 | |
343 | |
… | |
… | |
316 | # define EV_USE_4HEAP 1 |
346 | # define EV_USE_4HEAP 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
347 | # define EV_HEAP_CACHE_AT 1 |
318 | #endif |
348 | #endif |
319 | |
349 | |
320 | #ifndef EV_VERIFY |
350 | #ifndef EV_VERIFY |
321 | # define EV_VERIFY !EV_MINIMAL |
351 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
322 | #endif |
352 | #endif |
323 | |
353 | |
324 | #ifndef EV_USE_4HEAP |
354 | #ifndef EV_USE_4HEAP |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
326 | #endif |
356 | #endif |
327 | |
357 | |
328 | #ifndef EV_HEAP_CACHE_AT |
358 | #ifndef EV_HEAP_CACHE_AT |
329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
360 | #endif |
|
|
361 | |
|
|
362 | #ifdef ANDROID |
|
|
363 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
364 | # undef EV_USE_SELECT |
|
|
365 | # define EV_USE_SELECT 0 |
|
|
366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
367 | # undef EV_USE_CLOCK_SYSCALL |
|
|
368 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
369 | #endif |
|
|
370 | |
|
|
371 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
372 | #ifdef _AIX |
|
|
373 | /* AIX has a completely broken poll.h header */ |
|
|
374 | # undef EV_USE_POLL |
|
|
375 | # define EV_USE_POLL 0 |
330 | #endif |
376 | #endif |
331 | |
377 | |
332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
378 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
333 | /* which makes programs even slower. might work on other unices, too. */ |
379 | /* which makes programs even slower. might work on other unices, too. */ |
334 | #if EV_USE_CLOCK_SYSCALL |
380 | #if EV_USE_CLOCK_SYSCALL |
335 | # include <syscall.h> |
381 | # include <sys/syscall.h> |
336 | # ifdef SYS_clock_gettime |
382 | # ifdef SYS_clock_gettime |
337 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
383 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
338 | # undef EV_USE_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
339 | # define EV_USE_MONOTONIC 1 |
385 | # define EV_USE_MONOTONIC 1 |
340 | # else |
386 | # else |
… | |
… | |
359 | # undef EV_USE_INOTIFY |
405 | # undef EV_USE_INOTIFY |
360 | # define EV_USE_INOTIFY 0 |
406 | # define EV_USE_INOTIFY 0 |
361 | #endif |
407 | #endif |
362 | |
408 | |
363 | #if !EV_USE_NANOSLEEP |
409 | #if !EV_USE_NANOSLEEP |
364 | # ifndef _WIN32 |
410 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
411 | # if !defined _WIN32 && !defined __hpux |
365 | # include <sys/select.h> |
412 | # include <sys/select.h> |
366 | # endif |
413 | # endif |
367 | #endif |
414 | #endif |
368 | |
415 | |
369 | #if EV_USE_INOTIFY |
416 | #if EV_USE_INOTIFY |
370 | # include <sys/utsname.h> |
|
|
371 | # include <sys/statfs.h> |
417 | # include <sys/statfs.h> |
372 | # include <sys/inotify.h> |
418 | # include <sys/inotify.h> |
373 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
419 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
374 | # ifndef IN_DONT_FOLLOW |
420 | # ifndef IN_DONT_FOLLOW |
375 | # undef EV_USE_INOTIFY |
421 | # undef EV_USE_INOTIFY |
376 | # define EV_USE_INOTIFY 0 |
422 | # define EV_USE_INOTIFY 0 |
377 | # endif |
423 | # endif |
378 | #endif |
|
|
379 | |
|
|
380 | #if EV_SELECT_IS_WINSOCKET |
|
|
381 | # include <winsock.h> |
|
|
382 | #endif |
424 | #endif |
383 | |
425 | |
384 | #if EV_USE_EVENTFD |
426 | #if EV_USE_EVENTFD |
385 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
386 | # include <stdint.h> |
428 | # include <stdint.h> |
… | |
… | |
392 | # define EFD_CLOEXEC O_CLOEXEC |
434 | # define EFD_CLOEXEC O_CLOEXEC |
393 | # else |
435 | # else |
394 | # define EFD_CLOEXEC 02000000 |
436 | # define EFD_CLOEXEC 02000000 |
395 | # endif |
437 | # endif |
396 | # endif |
438 | # endif |
397 | # ifdef __cplusplus |
|
|
398 | extern "C" { |
|
|
399 | # endif |
|
|
400 | int eventfd (unsigned int initval, int flags); |
439 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
401 | # ifdef __cplusplus |
|
|
402 | } |
|
|
403 | # endif |
|
|
404 | #endif |
440 | #endif |
405 | |
441 | |
406 | #if EV_USE_SIGNALFD |
442 | #if EV_USE_SIGNALFD |
407 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
443 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
408 | # include <stdint.h> |
444 | # include <stdint.h> |
… | |
… | |
414 | # define SFD_CLOEXEC O_CLOEXEC |
450 | # define SFD_CLOEXEC O_CLOEXEC |
415 | # else |
451 | # else |
416 | # define SFD_CLOEXEC 02000000 |
452 | # define SFD_CLOEXEC 02000000 |
417 | # endif |
453 | # endif |
418 | # endif |
454 | # endif |
419 | # ifdef __cplusplus |
|
|
420 | extern "C" { |
|
|
421 | # endif |
|
|
422 | int signalfd (int fd, const sigset_t *mask, int flags); |
455 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
423 | |
456 | |
424 | struct signalfd_siginfo |
457 | struct signalfd_siginfo |
425 | { |
458 | { |
426 | uint32_t ssi_signo; |
459 | uint32_t ssi_signo; |
427 | char pad[128 - sizeof (uint32_t)]; |
460 | char pad[128 - sizeof (uint32_t)]; |
428 | }; |
461 | }; |
429 | # ifdef __cplusplus |
|
|
430 | } |
|
|
431 | # endif |
462 | #endif |
432 | #endif |
|
|
433 | |
|
|
434 | |
463 | |
435 | /**/ |
464 | /**/ |
436 | |
465 | |
437 | #if EV_VERIFY >= 3 |
466 | #if EV_VERIFY >= 3 |
438 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
467 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
439 | #else |
468 | #else |
440 | # define EV_FREQUENT_CHECK do { } while (0) |
469 | # define EV_FREQUENT_CHECK do { } while (0) |
441 | #endif |
470 | #endif |
442 | |
471 | |
443 | /* |
472 | /* |
444 | * This is used to avoid floating point rounding problems. |
473 | * This is used to work around floating point rounding problems. |
445 | * It is added to ev_rt_now when scheduling periodics |
|
|
446 | * to ensure progress, time-wise, even when rounding |
|
|
447 | * errors are against us. |
|
|
448 | * This value is good at least till the year 4000. |
474 | * This value is good at least till the year 4000. |
449 | * Better solutions welcome. |
|
|
450 | */ |
475 | */ |
451 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
476 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
477 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
452 | |
478 | |
453 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
479 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
454 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
480 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
455 | |
481 | |
|
|
482 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
483 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
484 | |
|
|
485 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
486 | /* ECB.H BEGIN */ |
|
|
487 | /* |
|
|
488 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
489 | * |
|
|
490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
491 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
492 | * All rights reserved. |
|
|
493 | * |
|
|
494 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
495 | * tion, are permitted provided that the following conditions are met: |
|
|
496 | * |
|
|
497 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
498 | * this list of conditions and the following disclaimer. |
|
|
499 | * |
|
|
500 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
501 | * notice, this list of conditions and the following disclaimer in the |
|
|
502 | * documentation and/or other materials provided with the distribution. |
|
|
503 | * |
|
|
504 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
505 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
506 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
507 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
508 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
509 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
510 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
511 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
512 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
513 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
514 | */ |
|
|
515 | |
|
|
516 | #ifndef ECB_H |
|
|
517 | #define ECB_H |
|
|
518 | |
|
|
519 | /* 16 bits major, 16 bits minor */ |
|
|
520 | #define ECB_VERSION 0x00010003 |
|
|
521 | |
|
|
522 | #ifdef _WIN32 |
|
|
523 | typedef signed char int8_t; |
|
|
524 | typedef unsigned char uint8_t; |
|
|
525 | typedef signed short int16_t; |
|
|
526 | typedef unsigned short uint16_t; |
|
|
527 | typedef signed int int32_t; |
|
|
528 | typedef unsigned int uint32_t; |
456 | #if __GNUC__ >= 4 |
529 | #if __GNUC__ |
457 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
530 | typedef signed long long int64_t; |
458 | # define noinline __attribute__ ((noinline)) |
531 | typedef unsigned long long uint64_t; |
|
|
532 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
533 | typedef signed __int64 int64_t; |
|
|
534 | typedef unsigned __int64 uint64_t; |
|
|
535 | #endif |
|
|
536 | #ifdef _WIN64 |
|
|
537 | #define ECB_PTRSIZE 8 |
|
|
538 | typedef uint64_t uintptr_t; |
|
|
539 | typedef int64_t intptr_t; |
|
|
540 | #else |
|
|
541 | #define ECB_PTRSIZE 4 |
|
|
542 | typedef uint32_t uintptr_t; |
|
|
543 | typedef int32_t intptr_t; |
|
|
544 | #endif |
459 | #else |
545 | #else |
460 | # define expect(expr,value) (expr) |
546 | #include <inttypes.h> |
461 | # define noinline |
547 | #if UINTMAX_MAX > 0xffffffffU |
462 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
548 | #define ECB_PTRSIZE 8 |
463 | # define inline |
549 | #else |
|
|
550 | #define ECB_PTRSIZE 4 |
|
|
551 | #endif |
464 | # endif |
552 | #endif |
|
|
553 | |
|
|
554 | /* work around x32 idiocy by defining proper macros */ |
|
|
555 | #if __x86_64 || _M_AMD64 |
|
|
556 | #if __ILP32 |
|
|
557 | #define ECB_AMD64_X32 1 |
|
|
558 | #else |
|
|
559 | #define ECB_AMD64 1 |
465 | #endif |
560 | #endif |
|
|
561 | #endif |
466 | |
562 | |
|
|
563 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
564 | * what their idiot authors think are the "more important" extensions, |
|
|
565 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
566 | * or so. |
|
|
567 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
568 | * an issue with that they should have done it right in the first place. |
|
|
569 | */ |
|
|
570 | #ifndef ECB_GCC_VERSION |
|
|
571 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
572 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
573 | #else |
|
|
574 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
575 | #endif |
|
|
576 | #endif |
|
|
577 | |
|
|
578 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
579 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
580 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
581 | #define ECB_CPP (__cplusplus+0) |
|
|
582 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
583 | |
|
|
584 | #if ECB_CPP |
|
|
585 | #define ECB_EXTERN_C extern "C" |
|
|
586 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
587 | #define ECB_EXTERN_C_END } |
|
|
588 | #else |
|
|
589 | #define ECB_EXTERN_C extern |
|
|
590 | #define ECB_EXTERN_C_BEG |
|
|
591 | #define ECB_EXTERN_C_END |
|
|
592 | #endif |
|
|
593 | |
|
|
594 | /*****************************************************************************/ |
|
|
595 | |
|
|
596 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
597 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
598 | |
|
|
599 | #if ECB_NO_THREADS |
|
|
600 | #define ECB_NO_SMP 1 |
|
|
601 | #endif |
|
|
602 | |
|
|
603 | #if ECB_NO_SMP |
|
|
604 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
605 | #endif |
|
|
606 | |
|
|
607 | #ifndef ECB_MEMORY_FENCE |
|
|
608 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
609 | #if __i386 || __i386__ |
|
|
610 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
611 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
612 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
613 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
614 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
615 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
616 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
617 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
619 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
620 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
622 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
623 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
624 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
625 | #elif __sparc || __sparc__ |
|
|
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
629 | #elif defined __s390__ || defined __s390x__ |
|
|
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
631 | #elif defined __mips__ |
|
|
632 | /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */ |
|
|
633 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
635 | #elif defined __alpha__ |
|
|
636 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
637 | #elif defined __hppa__ |
|
|
638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
639 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
640 | #elif defined __ia64__ |
|
|
641 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
642 | #endif |
|
|
643 | #endif |
|
|
644 | #endif |
|
|
645 | |
|
|
646 | #ifndef ECB_MEMORY_FENCE |
|
|
647 | #if ECB_GCC_VERSION(4,7) |
|
|
648 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
649 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
650 | |
|
|
651 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
652 | * without risking compile time errors with other compilers. We *could* |
|
|
653 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
654 | * around this shit time and again. |
|
|
655 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
656 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
657 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
658 | */ |
|
|
659 | |
|
|
660 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
661 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
662 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
663 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
664 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
665 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
666 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
667 | #elif defined _WIN32 |
|
|
668 | #include <WinNT.h> |
|
|
669 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
670 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
671 | #include <mbarrier.h> |
|
|
672 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
673 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
674 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
675 | #elif __xlC__ |
|
|
676 | #define ECB_MEMORY_FENCE __sync () |
|
|
677 | #endif |
|
|
678 | #endif |
|
|
679 | |
|
|
680 | #ifndef ECB_MEMORY_FENCE |
|
|
681 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
682 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
683 | /* not just C11 atomics and atomic accesses */ |
|
|
684 | #include <stdatomic.h> |
|
|
685 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
686 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
687 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
688 | /* for most usages, or gcc and clang have a bug */ |
|
|
689 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
690 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
691 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
692 | #endif |
|
|
693 | #endif |
|
|
694 | |
|
|
695 | #ifndef ECB_MEMORY_FENCE |
|
|
696 | #if !ECB_AVOID_PTHREADS |
|
|
697 | /* |
|
|
698 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
699 | * or failure to find pthread.h, then you should implement |
|
|
700 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
701 | * OR provide pthread.h and link against the posix thread library |
|
|
702 | * of your system. |
|
|
703 | */ |
|
|
704 | #include <pthread.h> |
|
|
705 | #define ECB_NEEDS_PTHREADS 1 |
|
|
706 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
707 | |
|
|
708 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
709 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
710 | #endif |
|
|
711 | #endif |
|
|
712 | |
|
|
713 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
714 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
715 | #endif |
|
|
716 | |
|
|
717 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
718 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
719 | #endif |
|
|
720 | |
|
|
721 | /*****************************************************************************/ |
|
|
722 | |
|
|
723 | #if __cplusplus |
|
|
724 | #define ecb_inline static inline |
|
|
725 | #elif ECB_GCC_VERSION(2,5) |
|
|
726 | #define ecb_inline static __inline__ |
|
|
727 | #elif ECB_C99 |
|
|
728 | #define ecb_inline static inline |
|
|
729 | #else |
|
|
730 | #define ecb_inline static |
|
|
731 | #endif |
|
|
732 | |
|
|
733 | #if ECB_GCC_VERSION(3,3) |
|
|
734 | #define ecb_restrict __restrict__ |
|
|
735 | #elif ECB_C99 |
|
|
736 | #define ecb_restrict restrict |
|
|
737 | #else |
|
|
738 | #define ecb_restrict |
|
|
739 | #endif |
|
|
740 | |
|
|
741 | typedef int ecb_bool; |
|
|
742 | |
|
|
743 | #define ECB_CONCAT_(a, b) a ## b |
|
|
744 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
745 | #define ECB_STRINGIFY_(a) # a |
|
|
746 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
747 | |
|
|
748 | #define ecb_function_ ecb_inline |
|
|
749 | |
|
|
750 | #if ECB_GCC_VERSION(3,1) |
|
|
751 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
752 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
753 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
754 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
755 | #else |
|
|
756 | #define ecb_attribute(attrlist) |
|
|
757 | #define ecb_is_constant(expr) 0 |
|
|
758 | #define ecb_expect(expr,value) (expr) |
|
|
759 | #define ecb_prefetch(addr,rw,locality) |
|
|
760 | #endif |
|
|
761 | |
|
|
762 | /* no emulation for ecb_decltype */ |
|
|
763 | #if ECB_GCC_VERSION(4,5) |
|
|
764 | #define ecb_decltype(x) __decltype(x) |
|
|
765 | #elif ECB_GCC_VERSION(3,0) |
|
|
766 | #define ecb_decltype(x) __typeof(x) |
|
|
767 | #endif |
|
|
768 | |
|
|
769 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
770 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
771 | #define ecb_const ecb_attribute ((__const__)) |
|
|
772 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
773 | |
|
|
774 | #if ECB_C11 |
|
|
775 | #define ecb_noreturn _Noreturn |
|
|
776 | #else |
|
|
777 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
778 | #endif |
|
|
779 | |
|
|
780 | #if ECB_GCC_VERSION(4,3) |
|
|
781 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
782 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
783 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
784 | #else |
|
|
785 | #define ecb_artificial |
|
|
786 | #define ecb_hot |
|
|
787 | #define ecb_cold |
|
|
788 | #endif |
|
|
789 | |
|
|
790 | /* put around conditional expressions if you are very sure that the */ |
|
|
791 | /* expression is mostly true or mostly false. note that these return */ |
|
|
792 | /* booleans, not the expression. */ |
467 | #define expect_false(expr) expect ((expr) != 0, 0) |
793 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
468 | #define expect_true(expr) expect ((expr) != 0, 1) |
794 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
795 | /* for compatibility to the rest of the world */ |
|
|
796 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
797 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
798 | |
|
|
799 | /* count trailing zero bits and count # of one bits */ |
|
|
800 | #if ECB_GCC_VERSION(3,4) |
|
|
801 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
802 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
803 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
804 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
805 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
806 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
807 | /* no popcountll */ |
|
|
808 | #else |
|
|
809 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
810 | ecb_function_ int |
|
|
811 | ecb_ctz32 (uint32_t x) |
|
|
812 | { |
|
|
813 | int r = 0; |
|
|
814 | |
|
|
815 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
816 | |
|
|
817 | #if ECB_branchless_on_i386 |
|
|
818 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
819 | r += !!(x & 0xcccccccc) << 1; |
|
|
820 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
821 | r += !!(x & 0xff00ff00) << 3; |
|
|
822 | r += !!(x & 0xffff0000) << 4; |
|
|
823 | #else |
|
|
824 | if (x & 0xaaaaaaaa) r += 1; |
|
|
825 | if (x & 0xcccccccc) r += 2; |
|
|
826 | if (x & 0xf0f0f0f0) r += 4; |
|
|
827 | if (x & 0xff00ff00) r += 8; |
|
|
828 | if (x & 0xffff0000) r += 16; |
|
|
829 | #endif |
|
|
830 | |
|
|
831 | return r; |
|
|
832 | } |
|
|
833 | |
|
|
834 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
835 | ecb_function_ int |
|
|
836 | ecb_ctz64 (uint64_t x) |
|
|
837 | { |
|
|
838 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
839 | return ecb_ctz32 (x >> shift) + shift; |
|
|
840 | } |
|
|
841 | |
|
|
842 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
843 | ecb_function_ int |
|
|
844 | ecb_popcount32 (uint32_t x) |
|
|
845 | { |
|
|
846 | x -= (x >> 1) & 0x55555555; |
|
|
847 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
848 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
849 | x *= 0x01010101; |
|
|
850 | |
|
|
851 | return x >> 24; |
|
|
852 | } |
|
|
853 | |
|
|
854 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
855 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
856 | { |
|
|
857 | int r = 0; |
|
|
858 | |
|
|
859 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
860 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
861 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
862 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
863 | if (x >> 1) { r += 1; } |
|
|
864 | |
|
|
865 | return r; |
|
|
866 | } |
|
|
867 | |
|
|
868 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
869 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
870 | { |
|
|
871 | int r = 0; |
|
|
872 | |
|
|
873 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
874 | |
|
|
875 | return r + ecb_ld32 (x); |
|
|
876 | } |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
880 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
881 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
882 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
883 | |
|
|
884 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
885 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
886 | { |
|
|
887 | return ( (x * 0x0802U & 0x22110U) |
|
|
888 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
889 | } |
|
|
890 | |
|
|
891 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
892 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
893 | { |
|
|
894 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
895 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
896 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
897 | x = ( x >> 8 ) | ( x << 8); |
|
|
898 | |
|
|
899 | return x; |
|
|
900 | } |
|
|
901 | |
|
|
902 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
903 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
904 | { |
|
|
905 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
906 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
907 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
908 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
909 | x = ( x >> 16 ) | ( x << 16); |
|
|
910 | |
|
|
911 | return x; |
|
|
912 | } |
|
|
913 | |
|
|
914 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
915 | /* so for this version we are lazy */ |
|
|
916 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
917 | ecb_function_ int |
|
|
918 | ecb_popcount64 (uint64_t x) |
|
|
919 | { |
|
|
920 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
921 | } |
|
|
922 | |
|
|
923 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
924 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
925 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
926 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
927 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
928 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
929 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
930 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
931 | |
|
|
932 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
933 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
934 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
935 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
936 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
937 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
938 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
939 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
940 | |
|
|
941 | #if ECB_GCC_VERSION(4,3) |
|
|
942 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
943 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
944 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
945 | #else |
|
|
946 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
947 | ecb_function_ uint16_t |
|
|
948 | ecb_bswap16 (uint16_t x) |
|
|
949 | { |
|
|
950 | return ecb_rotl16 (x, 8); |
|
|
951 | } |
|
|
952 | |
|
|
953 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
954 | ecb_function_ uint32_t |
|
|
955 | ecb_bswap32 (uint32_t x) |
|
|
956 | { |
|
|
957 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
958 | } |
|
|
959 | |
|
|
960 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
961 | ecb_function_ uint64_t |
|
|
962 | ecb_bswap64 (uint64_t x) |
|
|
963 | { |
|
|
964 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
965 | } |
|
|
966 | #endif |
|
|
967 | |
|
|
968 | #if ECB_GCC_VERSION(4,5) |
|
|
969 | #define ecb_unreachable() __builtin_unreachable () |
|
|
970 | #else |
|
|
971 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
972 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
973 | ecb_inline void ecb_unreachable (void) { } |
|
|
974 | #endif |
|
|
975 | |
|
|
976 | /* try to tell the compiler that some condition is definitely true */ |
|
|
977 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
978 | |
|
|
979 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
980 | ecb_inline unsigned char |
|
|
981 | ecb_byteorder_helper (void) |
|
|
982 | { |
|
|
983 | /* the union code still generates code under pressure in gcc, */ |
|
|
984 | /* but less than using pointers, and always seems to */ |
|
|
985 | /* successfully return a constant. */ |
|
|
986 | /* the reason why we have this horrible preprocessor mess */ |
|
|
987 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
988 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
989 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
990 | return 0x44; |
|
|
991 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
992 | return 0x44; |
|
|
993 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
994 | return 0x11; |
|
|
995 | #else |
|
|
996 | union |
|
|
997 | { |
|
|
998 | uint32_t i; |
|
|
999 | uint8_t c; |
|
|
1000 | } u = { 0x11223344 }; |
|
|
1001 | return u.c; |
|
|
1002 | #endif |
|
|
1003 | } |
|
|
1004 | |
|
|
1005 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1006 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1007 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1008 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1009 | |
|
|
1010 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1011 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1012 | #else |
|
|
1013 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1014 | #endif |
|
|
1015 | |
|
|
1016 | #if __cplusplus |
|
|
1017 | template<typename T> |
|
|
1018 | static inline T ecb_div_rd (T val, T div) |
|
|
1019 | { |
|
|
1020 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1021 | } |
|
|
1022 | template<typename T> |
|
|
1023 | static inline T ecb_div_ru (T val, T div) |
|
|
1024 | { |
|
|
1025 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1026 | } |
|
|
1027 | #else |
|
|
1028 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1029 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1030 | #endif |
|
|
1031 | |
|
|
1032 | #if ecb_cplusplus_does_not_suck |
|
|
1033 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1034 | template<typename T, int N> |
|
|
1035 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1036 | { |
|
|
1037 | return N; |
|
|
1038 | } |
|
|
1039 | #else |
|
|
1040 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1041 | #endif |
|
|
1042 | |
|
|
1043 | /*******************************************************************************/ |
|
|
1044 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1045 | |
|
|
1046 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1047 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1048 | #if 0 \ |
|
|
1049 | || __i386 || __i386__ \ |
|
|
1050 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1051 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1052 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1053 | || defined __s390__ || defined __s390x__ \ |
|
|
1054 | || defined __mips__ \ |
|
|
1055 | || defined __alpha__ \ |
|
|
1056 | || defined __hppa__ \ |
|
|
1057 | || defined __ia64__ \ |
|
|
1058 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1059 | #define ECB_STDFP 1 |
|
|
1060 | #include <string.h> /* for memcpy */ |
|
|
1061 | #else |
|
|
1062 | #define ECB_STDFP 0 |
|
|
1063 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1064 | #endif |
|
|
1065 | |
|
|
1066 | #ifndef ECB_NO_LIBM |
|
|
1067 | |
|
|
1068 | /* convert a float to ieee single/binary32 */ |
|
|
1069 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1070 | ecb_function_ uint32_t |
|
|
1071 | ecb_float_to_binary32 (float x) |
|
|
1072 | { |
|
|
1073 | uint32_t r; |
|
|
1074 | |
|
|
1075 | #if ECB_STDFP |
|
|
1076 | memcpy (&r, &x, 4); |
|
|
1077 | #else |
|
|
1078 | /* slow emulation, works for anything but -0 */ |
|
|
1079 | uint32_t m; |
|
|
1080 | int e; |
|
|
1081 | |
|
|
1082 | if (x == 0e0f ) return 0x00000000U; |
|
|
1083 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1084 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1085 | if (x != x ) return 0x7fbfffffU; |
|
|
1086 | |
|
|
1087 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1088 | |
|
|
1089 | r = m & 0x80000000U; |
|
|
1090 | |
|
|
1091 | if (r) |
|
|
1092 | m = -m; |
|
|
1093 | |
|
|
1094 | if (e <= -126) |
|
|
1095 | { |
|
|
1096 | m &= 0xffffffU; |
|
|
1097 | m >>= (-125 - e); |
|
|
1098 | e = -126; |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | r |= (e + 126) << 23; |
|
|
1102 | r |= m & 0x7fffffU; |
|
|
1103 | #endif |
|
|
1104 | |
|
|
1105 | return r; |
|
|
1106 | } |
|
|
1107 | |
|
|
1108 | /* converts an ieee single/binary32 to a float */ |
|
|
1109 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1110 | ecb_function_ float |
|
|
1111 | ecb_binary32_to_float (uint32_t x) |
|
|
1112 | { |
|
|
1113 | float r; |
|
|
1114 | |
|
|
1115 | #if ECB_STDFP |
|
|
1116 | memcpy (&r, &x, 4); |
|
|
1117 | #else |
|
|
1118 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1119 | int neg = x >> 31; |
|
|
1120 | int e = (x >> 23) & 0xffU; |
|
|
1121 | |
|
|
1122 | x &= 0x7fffffU; |
|
|
1123 | |
|
|
1124 | if (e) |
|
|
1125 | x |= 0x800000U; |
|
|
1126 | else |
|
|
1127 | e = 1; |
|
|
1128 | |
|
|
1129 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1130 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1131 | |
|
|
1132 | r = neg ? -r : r; |
|
|
1133 | #endif |
|
|
1134 | |
|
|
1135 | return r; |
|
|
1136 | } |
|
|
1137 | |
|
|
1138 | /* convert a double to ieee double/binary64 */ |
|
|
1139 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1140 | ecb_function_ uint64_t |
|
|
1141 | ecb_double_to_binary64 (double x) |
|
|
1142 | { |
|
|
1143 | uint64_t r; |
|
|
1144 | |
|
|
1145 | #if ECB_STDFP |
|
|
1146 | memcpy (&r, &x, 8); |
|
|
1147 | #else |
|
|
1148 | /* slow emulation, works for anything but -0 */ |
|
|
1149 | uint64_t m; |
|
|
1150 | int e; |
|
|
1151 | |
|
|
1152 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1153 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1154 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1155 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1156 | |
|
|
1157 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1158 | |
|
|
1159 | r = m & 0x8000000000000000;; |
|
|
1160 | |
|
|
1161 | if (r) |
|
|
1162 | m = -m; |
|
|
1163 | |
|
|
1164 | if (e <= -1022) |
|
|
1165 | { |
|
|
1166 | m &= 0x1fffffffffffffU; |
|
|
1167 | m >>= (-1021 - e); |
|
|
1168 | e = -1022; |
|
|
1169 | } |
|
|
1170 | |
|
|
1171 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1172 | r |= m & 0xfffffffffffffU; |
|
|
1173 | #endif |
|
|
1174 | |
|
|
1175 | return r; |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | /* converts an ieee double/binary64 to a double */ |
|
|
1179 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1180 | ecb_function_ double |
|
|
1181 | ecb_binary64_to_double (uint64_t x) |
|
|
1182 | { |
|
|
1183 | double r; |
|
|
1184 | |
|
|
1185 | #if ECB_STDFP |
|
|
1186 | memcpy (&r, &x, 8); |
|
|
1187 | #else |
|
|
1188 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1189 | int neg = x >> 63; |
|
|
1190 | int e = (x >> 52) & 0x7ffU; |
|
|
1191 | |
|
|
1192 | x &= 0xfffffffffffffU; |
|
|
1193 | |
|
|
1194 | if (e) |
|
|
1195 | x |= 0x10000000000000U; |
|
|
1196 | else |
|
|
1197 | e = 1; |
|
|
1198 | |
|
|
1199 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1200 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1201 | |
|
|
1202 | r = neg ? -r : r; |
|
|
1203 | #endif |
|
|
1204 | |
|
|
1205 | return r; |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | #endif |
|
|
1209 | |
|
|
1210 | #endif |
|
|
1211 | |
|
|
1212 | /* ECB.H END */ |
|
|
1213 | |
|
|
1214 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1215 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1216 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1217 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1218 | * libev, in which cases the memory fences become nops. |
|
|
1219 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1220 | * which will then provide the memory fences. |
|
|
1221 | */ |
|
|
1222 | # error "memory fences not defined for your architecture, please report" |
|
|
1223 | #endif |
|
|
1224 | |
|
|
1225 | #ifndef ECB_MEMORY_FENCE |
|
|
1226 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1227 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1228 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1229 | #endif |
|
|
1230 | |
|
|
1231 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1232 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1233 | #define noinline ecb_noinline |
|
|
1234 | |
469 | #define inline_size static inline |
1235 | #define inline_size ecb_inline |
470 | |
1236 | |
471 | #if EV_MINIMAL |
1237 | #if EV_FEATURE_CODE |
|
|
1238 | # define inline_speed ecb_inline |
|
|
1239 | #else |
472 | # define inline_speed static noinline |
1240 | # define inline_speed static noinline |
473 | #else |
|
|
474 | # define inline_speed static inline |
|
|
475 | #endif |
1241 | #endif |
476 | |
1242 | |
477 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1243 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
478 | |
1244 | |
479 | #if EV_MINPRI == EV_MAXPRI |
1245 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
492 | #define ev_active(w) ((W)(w))->active |
1258 | #define ev_active(w) ((W)(w))->active |
493 | #define ev_at(w) ((WT)(w))->at |
1259 | #define ev_at(w) ((WT)(w))->at |
494 | |
1260 | |
495 | #if EV_USE_REALTIME |
1261 | #if EV_USE_REALTIME |
496 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1262 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
497 | /* giving it a reasonably high chance of working on typical architetcures */ |
1263 | /* giving it a reasonably high chance of working on typical architectures */ |
498 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1264 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
499 | #endif |
1265 | #endif |
500 | |
1266 | |
501 | #if EV_USE_MONOTONIC |
1267 | #if EV_USE_MONOTONIC |
502 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1268 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
504 | |
1270 | |
505 | #ifndef EV_FD_TO_WIN32_HANDLE |
1271 | #ifndef EV_FD_TO_WIN32_HANDLE |
506 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
1272 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
507 | #endif |
1273 | #endif |
508 | #ifndef EV_WIN32_HANDLE_TO_FD |
1274 | #ifndef EV_WIN32_HANDLE_TO_FD |
509 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
1275 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
510 | #endif |
1276 | #endif |
511 | #ifndef EV_WIN32_CLOSE_FD |
1277 | #ifndef EV_WIN32_CLOSE_FD |
512 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
1278 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
513 | #endif |
1279 | #endif |
514 | |
1280 | |
… | |
… | |
516 | # include "ev_win32.c" |
1282 | # include "ev_win32.c" |
517 | #endif |
1283 | #endif |
518 | |
1284 | |
519 | /*****************************************************************************/ |
1285 | /*****************************************************************************/ |
520 | |
1286 | |
|
|
1287 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1288 | |
|
|
1289 | #if EV_USE_FLOOR |
|
|
1290 | # include <math.h> |
|
|
1291 | # define ev_floor(v) floor (v) |
|
|
1292 | #else |
|
|
1293 | |
|
|
1294 | #include <float.h> |
|
|
1295 | |
|
|
1296 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1297 | static ev_tstamp noinline |
|
|
1298 | ev_floor (ev_tstamp v) |
|
|
1299 | { |
|
|
1300 | /* the choice of shift factor is not terribly important */ |
|
|
1301 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1302 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1303 | #else |
|
|
1304 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1305 | #endif |
|
|
1306 | |
|
|
1307 | /* argument too large for an unsigned long? */ |
|
|
1308 | if (expect_false (v >= shift)) |
|
|
1309 | { |
|
|
1310 | ev_tstamp f; |
|
|
1311 | |
|
|
1312 | if (v == v - 1.) |
|
|
1313 | return v; /* very large number */ |
|
|
1314 | |
|
|
1315 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1316 | return f + ev_floor (v - f); |
|
|
1317 | } |
|
|
1318 | |
|
|
1319 | /* special treatment for negative args? */ |
|
|
1320 | if (expect_false (v < 0.)) |
|
|
1321 | { |
|
|
1322 | ev_tstamp f = -ev_floor (-v); |
|
|
1323 | |
|
|
1324 | return f - (f == v ? 0 : 1); |
|
|
1325 | } |
|
|
1326 | |
|
|
1327 | /* fits into an unsigned long */ |
|
|
1328 | return (unsigned long)v; |
|
|
1329 | } |
|
|
1330 | |
|
|
1331 | #endif |
|
|
1332 | |
|
|
1333 | /*****************************************************************************/ |
|
|
1334 | |
|
|
1335 | #ifdef __linux |
|
|
1336 | # include <sys/utsname.h> |
|
|
1337 | #endif |
|
|
1338 | |
|
|
1339 | static unsigned int noinline ecb_cold |
|
|
1340 | ev_linux_version (void) |
|
|
1341 | { |
|
|
1342 | #ifdef __linux |
|
|
1343 | unsigned int v = 0; |
|
|
1344 | struct utsname buf; |
|
|
1345 | int i; |
|
|
1346 | char *p = buf.release; |
|
|
1347 | |
|
|
1348 | if (uname (&buf)) |
|
|
1349 | return 0; |
|
|
1350 | |
|
|
1351 | for (i = 3+1; --i; ) |
|
|
1352 | { |
|
|
1353 | unsigned int c = 0; |
|
|
1354 | |
|
|
1355 | for (;;) |
|
|
1356 | { |
|
|
1357 | if (*p >= '0' && *p <= '9') |
|
|
1358 | c = c * 10 + *p++ - '0'; |
|
|
1359 | else |
|
|
1360 | { |
|
|
1361 | p += *p == '.'; |
|
|
1362 | break; |
|
|
1363 | } |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | v = (v << 8) | c; |
|
|
1367 | } |
|
|
1368 | |
|
|
1369 | return v; |
|
|
1370 | #else |
|
|
1371 | return 0; |
|
|
1372 | #endif |
|
|
1373 | } |
|
|
1374 | |
|
|
1375 | /*****************************************************************************/ |
|
|
1376 | |
|
|
1377 | #if EV_AVOID_STDIO |
|
|
1378 | static void noinline ecb_cold |
|
|
1379 | ev_printerr (const char *msg) |
|
|
1380 | { |
|
|
1381 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1382 | } |
|
|
1383 | #endif |
|
|
1384 | |
521 | static void (*syserr_cb)(const char *msg); |
1385 | static void (*syserr_cb)(const char *msg) EV_THROW; |
522 | |
1386 | |
523 | void |
1387 | void ecb_cold |
524 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1388 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
525 | { |
1389 | { |
526 | syserr_cb = cb; |
1390 | syserr_cb = cb; |
527 | } |
1391 | } |
528 | |
1392 | |
529 | static void noinline |
1393 | static void noinline ecb_cold |
530 | ev_syserr (const char *msg) |
1394 | ev_syserr (const char *msg) |
531 | { |
1395 | { |
532 | if (!msg) |
1396 | if (!msg) |
533 | msg = "(libev) system error"; |
1397 | msg = "(libev) system error"; |
534 | |
1398 | |
535 | if (syserr_cb) |
1399 | if (syserr_cb) |
536 | syserr_cb (msg); |
1400 | syserr_cb (msg); |
537 | else |
1401 | else |
538 | { |
1402 | { |
|
|
1403 | #if EV_AVOID_STDIO |
|
|
1404 | ev_printerr (msg); |
|
|
1405 | ev_printerr (": "); |
|
|
1406 | ev_printerr (strerror (errno)); |
|
|
1407 | ev_printerr ("\n"); |
|
|
1408 | #else |
539 | perror (msg); |
1409 | perror (msg); |
|
|
1410 | #endif |
540 | abort (); |
1411 | abort (); |
541 | } |
1412 | } |
542 | } |
1413 | } |
543 | |
1414 | |
544 | static void * |
1415 | static void * |
545 | ev_realloc_emul (void *ptr, long size) |
1416 | ev_realloc_emul (void *ptr, long size) EV_THROW |
546 | { |
1417 | { |
547 | /* some systems, notably openbsd and darwin, fail to properly |
1418 | /* some systems, notably openbsd and darwin, fail to properly |
548 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1419 | * implement realloc (x, 0) (as required by both ansi c-89 and |
549 | * the single unix specification, so work around them here. |
1420 | * the single unix specification, so work around them here. |
|
|
1421 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1422 | * despite documenting it otherwise. |
550 | */ |
1423 | */ |
551 | |
1424 | |
552 | if (size) |
1425 | if (size) |
553 | return realloc (ptr, size); |
1426 | return realloc (ptr, size); |
554 | |
1427 | |
555 | free (ptr); |
1428 | free (ptr); |
556 | return 0; |
1429 | return 0; |
557 | } |
1430 | } |
558 | |
1431 | |
559 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1432 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
560 | |
1433 | |
561 | void |
1434 | void ecb_cold |
562 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1435 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
563 | { |
1436 | { |
564 | alloc = cb; |
1437 | alloc = cb; |
565 | } |
1438 | } |
566 | |
1439 | |
567 | inline_speed void * |
1440 | inline_speed void * |
… | |
… | |
569 | { |
1442 | { |
570 | ptr = alloc (ptr, size); |
1443 | ptr = alloc (ptr, size); |
571 | |
1444 | |
572 | if (!ptr && size) |
1445 | if (!ptr && size) |
573 | { |
1446 | { |
|
|
1447 | #if EV_AVOID_STDIO |
|
|
1448 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1449 | #else |
574 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1450 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1451 | #endif |
575 | abort (); |
1452 | abort (); |
576 | } |
1453 | } |
577 | |
1454 | |
578 | return ptr; |
1455 | return ptr; |
579 | } |
1456 | } |
… | |
… | |
595 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1472 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
596 | unsigned char unused; |
1473 | unsigned char unused; |
597 | #if EV_USE_EPOLL |
1474 | #if EV_USE_EPOLL |
598 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1475 | unsigned int egen; /* generation counter to counter epoll bugs */ |
599 | #endif |
1476 | #endif |
600 | #if EV_SELECT_IS_WINSOCKET |
1477 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
601 | SOCKET handle; |
1478 | SOCKET handle; |
|
|
1479 | #endif |
|
|
1480 | #if EV_USE_IOCP |
|
|
1481 | OVERLAPPED or, ow; |
602 | #endif |
1482 | #endif |
603 | } ANFD; |
1483 | } ANFD; |
604 | |
1484 | |
605 | /* stores the pending event set for a given watcher */ |
1485 | /* stores the pending event set for a given watcher */ |
606 | typedef struct |
1486 | typedef struct |
… | |
… | |
648 | #undef VAR |
1528 | #undef VAR |
649 | }; |
1529 | }; |
650 | #include "ev_wrap.h" |
1530 | #include "ev_wrap.h" |
651 | |
1531 | |
652 | static struct ev_loop default_loop_struct; |
1532 | static struct ev_loop default_loop_struct; |
653 | struct ev_loop *ev_default_loop_ptr; |
1533 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
654 | |
1534 | |
655 | #else |
1535 | #else |
656 | |
1536 | |
657 | ev_tstamp ev_rt_now; |
1537 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
658 | #define VAR(name,decl) static decl; |
1538 | #define VAR(name,decl) static decl; |
659 | #include "ev_vars.h" |
1539 | #include "ev_vars.h" |
660 | #undef VAR |
1540 | #undef VAR |
661 | |
1541 | |
662 | static int ev_default_loop_ptr; |
1542 | static int ev_default_loop_ptr; |
663 | |
1543 | |
664 | #endif |
1544 | #endif |
665 | |
1545 | |
666 | #if EV_MINIMAL < 2 |
1546 | #if EV_FEATURE_API |
667 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1547 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
668 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1548 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
669 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1549 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
670 | #else |
1550 | #else |
671 | # define EV_RELEASE_CB (void)0 |
1551 | # define EV_RELEASE_CB (void)0 |
672 | # define EV_ACQUIRE_CB (void)0 |
1552 | # define EV_ACQUIRE_CB (void)0 |
673 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1553 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
674 | #endif |
1554 | #endif |
675 | |
1555 | |
676 | #define EVUNLOOP_RECURSE 0x80 |
1556 | #define EVBREAK_RECURSE 0x80 |
677 | |
1557 | |
678 | /*****************************************************************************/ |
1558 | /*****************************************************************************/ |
679 | |
1559 | |
680 | #ifndef EV_HAVE_EV_TIME |
1560 | #ifndef EV_HAVE_EV_TIME |
681 | ev_tstamp |
1561 | ev_tstamp |
682 | ev_time (void) |
1562 | ev_time (void) EV_THROW |
683 | { |
1563 | { |
684 | #if EV_USE_REALTIME |
1564 | #if EV_USE_REALTIME |
685 | if (expect_true (have_realtime)) |
1565 | if (expect_true (have_realtime)) |
686 | { |
1566 | { |
687 | struct timespec ts; |
1567 | struct timespec ts; |
… | |
… | |
711 | return ev_time (); |
1591 | return ev_time (); |
712 | } |
1592 | } |
713 | |
1593 | |
714 | #if EV_MULTIPLICITY |
1594 | #if EV_MULTIPLICITY |
715 | ev_tstamp |
1595 | ev_tstamp |
716 | ev_now (EV_P) |
1596 | ev_now (EV_P) EV_THROW |
717 | { |
1597 | { |
718 | return ev_rt_now; |
1598 | return ev_rt_now; |
719 | } |
1599 | } |
720 | #endif |
1600 | #endif |
721 | |
1601 | |
722 | void |
1602 | void |
723 | ev_sleep (ev_tstamp delay) |
1603 | ev_sleep (ev_tstamp delay) EV_THROW |
724 | { |
1604 | { |
725 | if (delay > 0.) |
1605 | if (delay > 0.) |
726 | { |
1606 | { |
727 | #if EV_USE_NANOSLEEP |
1607 | #if EV_USE_NANOSLEEP |
728 | struct timespec ts; |
1608 | struct timespec ts; |
729 | |
1609 | |
730 | ts.tv_sec = (time_t)delay; |
1610 | EV_TS_SET (ts, delay); |
731 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
732 | |
|
|
733 | nanosleep (&ts, 0); |
1611 | nanosleep (&ts, 0); |
734 | #elif defined(_WIN32) |
1612 | #elif defined _WIN32 |
735 | Sleep ((unsigned long)(delay * 1e3)); |
1613 | Sleep ((unsigned long)(delay * 1e3)); |
736 | #else |
1614 | #else |
737 | struct timeval tv; |
1615 | struct timeval tv; |
738 | |
1616 | |
739 | tv.tv_sec = (time_t)delay; |
|
|
740 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
741 | |
|
|
742 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1617 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
743 | /* something not guaranteed by newer posix versions, but guaranteed */ |
1618 | /* something not guaranteed by newer posix versions, but guaranteed */ |
744 | /* by older ones */ |
1619 | /* by older ones */ |
|
|
1620 | EV_TV_SET (tv, delay); |
745 | select (0, 0, 0, 0, &tv); |
1621 | select (0, 0, 0, 0, &tv); |
746 | #endif |
1622 | #endif |
747 | } |
1623 | } |
748 | } |
1624 | } |
749 | |
1625 | |
750 | /*****************************************************************************/ |
1626 | /*****************************************************************************/ |
751 | |
1627 | |
752 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
753 | |
1629 | |
754 | /* find a suitable new size for the given array, */ |
1630 | /* find a suitable new size for the given array, */ |
755 | /* hopefully by rounding to a ncie-to-malloc size */ |
1631 | /* hopefully by rounding to a nice-to-malloc size */ |
756 | inline_size int |
1632 | inline_size int |
757 | array_nextsize (int elem, int cur, int cnt) |
1633 | array_nextsize (int elem, int cur, int cnt) |
758 | { |
1634 | { |
759 | int ncur = cur + 1; |
1635 | int ncur = cur + 1; |
760 | |
1636 | |
761 | do |
1637 | do |
762 | ncur <<= 1; |
1638 | ncur <<= 1; |
763 | while (cnt > ncur); |
1639 | while (cnt > ncur); |
764 | |
1640 | |
765 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1641 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
766 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1642 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
767 | { |
1643 | { |
768 | ncur *= elem; |
1644 | ncur *= elem; |
769 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1645 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
770 | ncur = ncur - sizeof (void *) * 4; |
1646 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
772 | } |
1648 | } |
773 | |
1649 | |
774 | return ncur; |
1650 | return ncur; |
775 | } |
1651 | } |
776 | |
1652 | |
777 | static noinline void * |
1653 | static void * noinline ecb_cold |
778 | array_realloc (int elem, void *base, int *cur, int cnt) |
1654 | array_realloc (int elem, void *base, int *cur, int cnt) |
779 | { |
1655 | { |
780 | *cur = array_nextsize (elem, *cur, cnt); |
1656 | *cur = array_nextsize (elem, *cur, cnt); |
781 | return ev_realloc (base, elem * *cur); |
1657 | return ev_realloc (base, elem * *cur); |
782 | } |
1658 | } |
… | |
… | |
785 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1661 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
786 | |
1662 | |
787 | #define array_needsize(type,base,cur,cnt,init) \ |
1663 | #define array_needsize(type,base,cur,cnt,init) \ |
788 | if (expect_false ((cnt) > (cur))) \ |
1664 | if (expect_false ((cnt) > (cur))) \ |
789 | { \ |
1665 | { \ |
790 | int ocur_ = (cur); \ |
1666 | int ecb_unused ocur_ = (cur); \ |
791 | (base) = (type *)array_realloc \ |
1667 | (base) = (type *)array_realloc \ |
792 | (sizeof (type), (base), &(cur), (cnt)); \ |
1668 | (sizeof (type), (base), &(cur), (cnt)); \ |
793 | init ((base) + (ocur_), (cur) - ocur_); \ |
1669 | init ((base) + (ocur_), (cur) - ocur_); \ |
794 | } |
1670 | } |
795 | |
1671 | |
… | |
… | |
813 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1689 | pendingcb (EV_P_ ev_prepare *w, int revents) |
814 | { |
1690 | { |
815 | } |
1691 | } |
816 | |
1692 | |
817 | void noinline |
1693 | void noinline |
818 | ev_feed_event (EV_P_ void *w, int revents) |
1694 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
819 | { |
1695 | { |
820 | W w_ = (W)w; |
1696 | W w_ = (W)w; |
821 | int pri = ABSPRI (w_); |
1697 | int pri = ABSPRI (w_); |
822 | |
1698 | |
823 | if (expect_false (w_->pending)) |
1699 | if (expect_false (w_->pending)) |
… | |
… | |
827 | w_->pending = ++pendingcnt [pri]; |
1703 | w_->pending = ++pendingcnt [pri]; |
828 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1704 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
829 | pendings [pri][w_->pending - 1].w = w_; |
1705 | pendings [pri][w_->pending - 1].w = w_; |
830 | pendings [pri][w_->pending - 1].events = revents; |
1706 | pendings [pri][w_->pending - 1].events = revents; |
831 | } |
1707 | } |
|
|
1708 | |
|
|
1709 | pendingpri = NUMPRI - 1; |
832 | } |
1710 | } |
833 | |
1711 | |
834 | inline_speed void |
1712 | inline_speed void |
835 | feed_reverse (EV_P_ W w) |
1713 | feed_reverse (EV_P_ W w) |
836 | { |
1714 | { |
… | |
… | |
856 | } |
1734 | } |
857 | |
1735 | |
858 | /*****************************************************************************/ |
1736 | /*****************************************************************************/ |
859 | |
1737 | |
860 | inline_speed void |
1738 | inline_speed void |
861 | fd_event_nc (EV_P_ int fd, int revents) |
1739 | fd_event_nocheck (EV_P_ int fd, int revents) |
862 | { |
1740 | { |
863 | ANFD *anfd = anfds + fd; |
1741 | ANFD *anfd = anfds + fd; |
864 | ev_io *w; |
1742 | ev_io *w; |
865 | |
1743 | |
866 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1744 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
878 | fd_event (EV_P_ int fd, int revents) |
1756 | fd_event (EV_P_ int fd, int revents) |
879 | { |
1757 | { |
880 | ANFD *anfd = anfds + fd; |
1758 | ANFD *anfd = anfds + fd; |
881 | |
1759 | |
882 | if (expect_true (!anfd->reify)) |
1760 | if (expect_true (!anfd->reify)) |
883 | fd_event_nc (EV_A_ fd, revents); |
1761 | fd_event_nocheck (EV_A_ fd, revents); |
884 | } |
1762 | } |
885 | |
1763 | |
886 | void |
1764 | void |
887 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1765 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
888 | { |
1766 | { |
889 | if (fd >= 0 && fd < anfdmax) |
1767 | if (fd >= 0 && fd < anfdmax) |
890 | fd_event_nc (EV_A_ fd, revents); |
1768 | fd_event_nocheck (EV_A_ fd, revents); |
891 | } |
1769 | } |
892 | |
1770 | |
893 | /* make sure the external fd watch events are in-sync */ |
1771 | /* make sure the external fd watch events are in-sync */ |
894 | /* with the kernel/libev internal state */ |
1772 | /* with the kernel/libev internal state */ |
895 | inline_size void |
1773 | inline_size void |
896 | fd_reify (EV_P) |
1774 | fd_reify (EV_P) |
897 | { |
1775 | { |
898 | int i; |
1776 | int i; |
899 | |
1777 | |
|
|
1778 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1779 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1780 | { |
|
|
1781 | int fd = fdchanges [i]; |
|
|
1782 | ANFD *anfd = anfds + fd; |
|
|
1783 | |
|
|
1784 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1785 | { |
|
|
1786 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1787 | |
|
|
1788 | if (handle != anfd->handle) |
|
|
1789 | { |
|
|
1790 | unsigned long arg; |
|
|
1791 | |
|
|
1792 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1793 | |
|
|
1794 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1795 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1796 | anfd->events = 0; |
|
|
1797 | anfd->handle = handle; |
|
|
1798 | } |
|
|
1799 | } |
|
|
1800 | } |
|
|
1801 | #endif |
|
|
1802 | |
900 | for (i = 0; i < fdchangecnt; ++i) |
1803 | for (i = 0; i < fdchangecnt; ++i) |
901 | { |
1804 | { |
902 | int fd = fdchanges [i]; |
1805 | int fd = fdchanges [i]; |
903 | ANFD *anfd = anfds + fd; |
1806 | ANFD *anfd = anfds + fd; |
904 | ev_io *w; |
1807 | ev_io *w; |
905 | |
1808 | |
906 | unsigned char events = 0; |
1809 | unsigned char o_events = anfd->events; |
|
|
1810 | unsigned char o_reify = anfd->reify; |
907 | |
1811 | |
908 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1812 | anfd->reify = 0; |
909 | events |= (unsigned char)w->events; |
|
|
910 | |
1813 | |
911 | #if EV_SELECT_IS_WINSOCKET |
1814 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
912 | if (events) |
|
|
913 | { |
1815 | { |
914 | unsigned long arg; |
1816 | anfd->events = 0; |
915 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1817 | |
916 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1818 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1819 | anfd->events |= (unsigned char)w->events; |
|
|
1820 | |
|
|
1821 | if (o_events != anfd->events) |
|
|
1822 | o_reify = EV__IOFDSET; /* actually |= */ |
917 | } |
1823 | } |
918 | #endif |
|
|
919 | |
1824 | |
920 | { |
1825 | if (o_reify & EV__IOFDSET) |
921 | unsigned char o_events = anfd->events; |
|
|
922 | unsigned char o_reify = anfd->reify; |
|
|
923 | |
|
|
924 | anfd->reify = 0; |
|
|
925 | anfd->events = events; |
|
|
926 | |
|
|
927 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
928 | backend_modify (EV_A_ fd, o_events, events); |
1826 | backend_modify (EV_A_ fd, o_events, anfd->events); |
929 | } |
|
|
930 | } |
1827 | } |
931 | |
1828 | |
932 | fdchangecnt = 0; |
1829 | fdchangecnt = 0; |
933 | } |
1830 | } |
934 | |
1831 | |
… | |
… | |
946 | fdchanges [fdchangecnt - 1] = fd; |
1843 | fdchanges [fdchangecnt - 1] = fd; |
947 | } |
1844 | } |
948 | } |
1845 | } |
949 | |
1846 | |
950 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1847 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
951 | inline_speed void |
1848 | inline_speed void ecb_cold |
952 | fd_kill (EV_P_ int fd) |
1849 | fd_kill (EV_P_ int fd) |
953 | { |
1850 | { |
954 | ev_io *w; |
1851 | ev_io *w; |
955 | |
1852 | |
956 | while ((w = (ev_io *)anfds [fd].head)) |
1853 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
958 | ev_io_stop (EV_A_ w); |
1855 | ev_io_stop (EV_A_ w); |
959 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1856 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
960 | } |
1857 | } |
961 | } |
1858 | } |
962 | |
1859 | |
963 | /* check whether the given fd is atcually valid, for error recovery */ |
1860 | /* check whether the given fd is actually valid, for error recovery */ |
964 | inline_size int |
1861 | inline_size int ecb_cold |
965 | fd_valid (int fd) |
1862 | fd_valid (int fd) |
966 | { |
1863 | { |
967 | #ifdef _WIN32 |
1864 | #ifdef _WIN32 |
968 | return _get_osfhandle (fd) != -1; |
1865 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
969 | #else |
1866 | #else |
970 | return fcntl (fd, F_GETFD) != -1; |
1867 | return fcntl (fd, F_GETFD) != -1; |
971 | #endif |
1868 | #endif |
972 | } |
1869 | } |
973 | |
1870 | |
974 | /* called on EBADF to verify fds */ |
1871 | /* called on EBADF to verify fds */ |
975 | static void noinline |
1872 | static void noinline ecb_cold |
976 | fd_ebadf (EV_P) |
1873 | fd_ebadf (EV_P) |
977 | { |
1874 | { |
978 | int fd; |
1875 | int fd; |
979 | |
1876 | |
980 | for (fd = 0; fd < anfdmax; ++fd) |
1877 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
982 | if (!fd_valid (fd) && errno == EBADF) |
1879 | if (!fd_valid (fd) && errno == EBADF) |
983 | fd_kill (EV_A_ fd); |
1880 | fd_kill (EV_A_ fd); |
984 | } |
1881 | } |
985 | |
1882 | |
986 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1883 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
987 | static void noinline |
1884 | static void noinline ecb_cold |
988 | fd_enomem (EV_P) |
1885 | fd_enomem (EV_P) |
989 | { |
1886 | { |
990 | int fd; |
1887 | int fd; |
991 | |
1888 | |
992 | for (fd = anfdmax; fd--; ) |
1889 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1010 | anfds [fd].emask = 0; |
1907 | anfds [fd].emask = 0; |
1011 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1908 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1012 | } |
1909 | } |
1013 | } |
1910 | } |
1014 | |
1911 | |
|
|
1912 | /* used to prepare libev internal fd's */ |
|
|
1913 | /* this is not fork-safe */ |
|
|
1914 | inline_speed void |
|
|
1915 | fd_intern (int fd) |
|
|
1916 | { |
|
|
1917 | #ifdef _WIN32 |
|
|
1918 | unsigned long arg = 1; |
|
|
1919 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1920 | #else |
|
|
1921 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1922 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1923 | #endif |
|
|
1924 | } |
|
|
1925 | |
1015 | /*****************************************************************************/ |
1926 | /*****************************************************************************/ |
1016 | |
1927 | |
1017 | /* |
1928 | /* |
1018 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1929 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1019 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1930 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1020 | * the branching factor of the d-tree. |
1931 | * the branching factor of the d-tree. |
1021 | */ |
1932 | */ |
1022 | |
1933 | |
1023 | /* |
1934 | /* |
… | |
… | |
1171 | |
2082 | |
1172 | static ANSIG signals [EV_NSIG - 1]; |
2083 | static ANSIG signals [EV_NSIG - 1]; |
1173 | |
2084 | |
1174 | /*****************************************************************************/ |
2085 | /*****************************************************************************/ |
1175 | |
2086 | |
1176 | /* used to prepare libev internal fd's */ |
2087 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1177 | /* this is not fork-safe */ |
2088 | |
|
|
2089 | static void noinline ecb_cold |
|
|
2090 | evpipe_init (EV_P) |
|
|
2091 | { |
|
|
2092 | if (!ev_is_active (&pipe_w)) |
|
|
2093 | { |
|
|
2094 | int fds [2]; |
|
|
2095 | |
|
|
2096 | # if EV_USE_EVENTFD |
|
|
2097 | fds [0] = -1; |
|
|
2098 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2099 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2100 | fds [1] = eventfd (0, 0); |
|
|
2101 | |
|
|
2102 | if (fds [1] < 0) |
|
|
2103 | # endif |
|
|
2104 | { |
|
|
2105 | while (pipe (fds)) |
|
|
2106 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2107 | |
|
|
2108 | fd_intern (fds [0]); |
|
|
2109 | } |
|
|
2110 | |
|
|
2111 | evpipe [0] = fds [0]; |
|
|
2112 | |
|
|
2113 | if (evpipe [1] < 0) |
|
|
2114 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2115 | else |
|
|
2116 | { |
|
|
2117 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2118 | /* so that evpipe_write can always rely on its value. */ |
|
|
2119 | /* this branch does not do anything sensible on windows, */ |
|
|
2120 | /* so must not be executed on windows */ |
|
|
2121 | |
|
|
2122 | dup2 (fds [1], evpipe [1]); |
|
|
2123 | close (fds [1]); |
|
|
2124 | } |
|
|
2125 | |
|
|
2126 | fd_intern (evpipe [1]); |
|
|
2127 | |
|
|
2128 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2129 | ev_io_start (EV_A_ &pipe_w); |
|
|
2130 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2131 | } |
|
|
2132 | } |
|
|
2133 | |
1178 | inline_speed void |
2134 | inline_speed void |
1179 | fd_intern (int fd) |
2135 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1180 | { |
2136 | { |
1181 | #ifdef _WIN32 |
2137 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1182 | unsigned long arg = 1; |
|
|
1183 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1184 | #else |
|
|
1185 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1186 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1187 | #endif |
|
|
1188 | } |
|
|
1189 | |
2138 | |
1190 | static void noinline |
2139 | if (expect_true (*flag)) |
1191 | evpipe_init (EV_P) |
2140 | return; |
1192 | { |
2141 | |
1193 | if (!ev_is_active (&pipe_w)) |
2142 | *flag = 1; |
|
|
2143 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2144 | |
|
|
2145 | pipe_write_skipped = 1; |
|
|
2146 | |
|
|
2147 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2148 | |
|
|
2149 | if (pipe_write_wanted) |
1194 | { |
2150 | { |
|
|
2151 | int old_errno; |
|
|
2152 | |
|
|
2153 | pipe_write_skipped = 0; |
|
|
2154 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2155 | |
|
|
2156 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2157 | |
1195 | #if EV_USE_EVENTFD |
2158 | #if EV_USE_EVENTFD |
1196 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2159 | if (evpipe [0] < 0) |
1197 | if (evfd < 0 && errno == EINVAL) |
|
|
1198 | evfd = eventfd (0, 0); |
|
|
1199 | |
|
|
1200 | if (evfd >= 0) |
|
|
1201 | { |
2160 | { |
1202 | evpipe [0] = -1; |
2161 | uint64_t counter = 1; |
1203 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2162 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1204 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1205 | } |
2163 | } |
1206 | else |
2164 | else |
1207 | #endif |
2165 | #endif |
1208 | { |
2166 | { |
1209 | while (pipe (evpipe)) |
2167 | #ifdef _WIN32 |
1210 | ev_syserr ("(libev) error creating signal/async pipe"); |
2168 | WSABUF buf; |
1211 | |
2169 | DWORD sent; |
1212 | fd_intern (evpipe [0]); |
2170 | buf.buf = &buf; |
1213 | fd_intern (evpipe [1]); |
2171 | buf.len = 1; |
1214 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2172 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2173 | #else |
|
|
2174 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2175 | #endif |
1215 | } |
2176 | } |
1216 | |
|
|
1217 | ev_io_start (EV_A_ &pipe_w); |
|
|
1218 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1219 | } |
|
|
1220 | } |
|
|
1221 | |
|
|
1222 | inline_size void |
|
|
1223 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1224 | { |
|
|
1225 | if (!*flag) |
|
|
1226 | { |
|
|
1227 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1228 | |
|
|
1229 | *flag = 1; |
|
|
1230 | |
|
|
1231 | #if EV_USE_EVENTFD |
|
|
1232 | if (evfd >= 0) |
|
|
1233 | { |
|
|
1234 | uint64_t counter = 1; |
|
|
1235 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1236 | } |
|
|
1237 | else |
|
|
1238 | #endif |
|
|
1239 | write (evpipe [1], &old_errno, 1); |
|
|
1240 | |
2177 | |
1241 | errno = old_errno; |
2178 | errno = old_errno; |
1242 | } |
2179 | } |
1243 | } |
2180 | } |
1244 | |
2181 | |
… | |
… | |
1247 | static void |
2184 | static void |
1248 | pipecb (EV_P_ ev_io *iow, int revents) |
2185 | pipecb (EV_P_ ev_io *iow, int revents) |
1249 | { |
2186 | { |
1250 | int i; |
2187 | int i; |
1251 | |
2188 | |
|
|
2189 | if (revents & EV_READ) |
|
|
2190 | { |
1252 | #if EV_USE_EVENTFD |
2191 | #if EV_USE_EVENTFD |
1253 | if (evfd >= 0) |
2192 | if (evpipe [0] < 0) |
1254 | { |
2193 | { |
1255 | uint64_t counter; |
2194 | uint64_t counter; |
1256 | read (evfd, &counter, sizeof (uint64_t)); |
2195 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1257 | } |
2196 | } |
1258 | else |
2197 | else |
1259 | #endif |
2198 | #endif |
1260 | { |
2199 | { |
1261 | char dummy; |
2200 | char dummy[4]; |
|
|
2201 | #ifdef _WIN32 |
|
|
2202 | WSABUF buf; |
|
|
2203 | DWORD recvd; |
|
|
2204 | DWORD flags = 0; |
|
|
2205 | buf.buf = dummy; |
|
|
2206 | buf.len = sizeof (dummy); |
|
|
2207 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2208 | #else |
1262 | read (evpipe [0], &dummy, 1); |
2209 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2210 | #endif |
|
|
2211 | } |
1263 | } |
2212 | } |
1264 | |
2213 | |
|
|
2214 | pipe_write_skipped = 0; |
|
|
2215 | |
|
|
2216 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2217 | |
|
|
2218 | #if EV_SIGNAL_ENABLE |
1265 | if (sig_pending) |
2219 | if (sig_pending) |
1266 | { |
2220 | { |
1267 | sig_pending = 0; |
2221 | sig_pending = 0; |
|
|
2222 | |
|
|
2223 | ECB_MEMORY_FENCE; |
1268 | |
2224 | |
1269 | for (i = EV_NSIG - 1; i--; ) |
2225 | for (i = EV_NSIG - 1; i--; ) |
1270 | if (expect_false (signals [i].pending)) |
2226 | if (expect_false (signals [i].pending)) |
1271 | ev_feed_signal_event (EV_A_ i + 1); |
2227 | ev_feed_signal_event (EV_A_ i + 1); |
1272 | } |
2228 | } |
|
|
2229 | #endif |
1273 | |
2230 | |
1274 | #if EV_ASYNC_ENABLE |
2231 | #if EV_ASYNC_ENABLE |
1275 | if (async_pending) |
2232 | if (async_pending) |
1276 | { |
2233 | { |
1277 | async_pending = 0; |
2234 | async_pending = 0; |
|
|
2235 | |
|
|
2236 | ECB_MEMORY_FENCE; |
1278 | |
2237 | |
1279 | for (i = asynccnt; i--; ) |
2238 | for (i = asynccnt; i--; ) |
1280 | if (asyncs [i]->sent) |
2239 | if (asyncs [i]->sent) |
1281 | { |
2240 | { |
1282 | asyncs [i]->sent = 0; |
2241 | asyncs [i]->sent = 0; |
|
|
2242 | ECB_MEMORY_FENCE_RELEASE; |
1283 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2243 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1284 | } |
2244 | } |
1285 | } |
2245 | } |
1286 | #endif |
2246 | #endif |
1287 | } |
2247 | } |
1288 | |
2248 | |
1289 | /*****************************************************************************/ |
2249 | /*****************************************************************************/ |
1290 | |
2250 | |
|
|
2251 | void |
|
|
2252 | ev_feed_signal (int signum) EV_THROW |
|
|
2253 | { |
|
|
2254 | #if EV_MULTIPLICITY |
|
|
2255 | EV_P; |
|
|
2256 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2257 | EV_A = signals [signum - 1].loop; |
|
|
2258 | |
|
|
2259 | if (!EV_A) |
|
|
2260 | return; |
|
|
2261 | #endif |
|
|
2262 | |
|
|
2263 | signals [signum - 1].pending = 1; |
|
|
2264 | evpipe_write (EV_A_ &sig_pending); |
|
|
2265 | } |
|
|
2266 | |
1291 | static void |
2267 | static void |
1292 | ev_sighandler (int signum) |
2268 | ev_sighandler (int signum) |
1293 | { |
2269 | { |
1294 | #if EV_MULTIPLICITY |
|
|
1295 | EV_P = signals [signum - 1].loop; |
|
|
1296 | #endif |
|
|
1297 | |
|
|
1298 | #if _WIN32 |
2270 | #ifdef _WIN32 |
1299 | signal (signum, ev_sighandler); |
2271 | signal (signum, ev_sighandler); |
1300 | #endif |
2272 | #endif |
1301 | |
2273 | |
1302 | signals [signum - 1].pending = 1; |
2274 | ev_feed_signal (signum); |
1303 | evpipe_write (EV_A_ &sig_pending); |
|
|
1304 | } |
2275 | } |
1305 | |
2276 | |
1306 | void noinline |
2277 | void noinline |
1307 | ev_feed_signal_event (EV_P_ int signum) |
2278 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1308 | { |
2279 | { |
1309 | WL w; |
2280 | WL w; |
1310 | |
2281 | |
1311 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2282 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1312 | return; |
2283 | return; |
1313 | |
2284 | |
1314 | --signum; |
2285 | --signum; |
1315 | |
2286 | |
1316 | #if EV_MULTIPLICITY |
2287 | #if EV_MULTIPLICITY |
… | |
… | |
1320 | if (expect_false (signals [signum].loop != EV_A)) |
2291 | if (expect_false (signals [signum].loop != EV_A)) |
1321 | return; |
2292 | return; |
1322 | #endif |
2293 | #endif |
1323 | |
2294 | |
1324 | signals [signum].pending = 0; |
2295 | signals [signum].pending = 0; |
|
|
2296 | ECB_MEMORY_FENCE_RELEASE; |
1325 | |
2297 | |
1326 | for (w = signals [signum].head; w; w = w->next) |
2298 | for (w = signals [signum].head; w; w = w->next) |
1327 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2299 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1328 | } |
2300 | } |
1329 | |
2301 | |
… | |
… | |
1345 | break; |
2317 | break; |
1346 | } |
2318 | } |
1347 | } |
2319 | } |
1348 | #endif |
2320 | #endif |
1349 | |
2321 | |
|
|
2322 | #endif |
|
|
2323 | |
1350 | /*****************************************************************************/ |
2324 | /*****************************************************************************/ |
1351 | |
2325 | |
|
|
2326 | #if EV_CHILD_ENABLE |
1352 | static WL childs [EV_PID_HASHSIZE]; |
2327 | static WL childs [EV_PID_HASHSIZE]; |
1353 | |
|
|
1354 | #ifndef _WIN32 |
|
|
1355 | |
2328 | |
1356 | static ev_signal childev; |
2329 | static ev_signal childev; |
1357 | |
2330 | |
1358 | #ifndef WIFCONTINUED |
2331 | #ifndef WIFCONTINUED |
1359 | # define WIFCONTINUED(status) 0 |
2332 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1364 | child_reap (EV_P_ int chain, int pid, int status) |
2337 | child_reap (EV_P_ int chain, int pid, int status) |
1365 | { |
2338 | { |
1366 | ev_child *w; |
2339 | ev_child *w; |
1367 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2340 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1368 | |
2341 | |
1369 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2342 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1370 | { |
2343 | { |
1371 | if ((w->pid == pid || !w->pid) |
2344 | if ((w->pid == pid || !w->pid) |
1372 | && (!traced || (w->flags & 1))) |
2345 | && (!traced || (w->flags & 1))) |
1373 | { |
2346 | { |
1374 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2347 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1399 | /* make sure we are called again until all children have been reaped */ |
2372 | /* make sure we are called again until all children have been reaped */ |
1400 | /* we need to do it this way so that the callback gets called before we continue */ |
2373 | /* we need to do it this way so that the callback gets called before we continue */ |
1401 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2374 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1402 | |
2375 | |
1403 | child_reap (EV_A_ pid, pid, status); |
2376 | child_reap (EV_A_ pid, pid, status); |
1404 | if (EV_PID_HASHSIZE > 1) |
2377 | if ((EV_PID_HASHSIZE) > 1) |
1405 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2378 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1406 | } |
2379 | } |
1407 | |
2380 | |
1408 | #endif |
2381 | #endif |
1409 | |
2382 | |
1410 | /*****************************************************************************/ |
2383 | /*****************************************************************************/ |
1411 | |
2384 | |
|
|
2385 | #if EV_USE_IOCP |
|
|
2386 | # include "ev_iocp.c" |
|
|
2387 | #endif |
1412 | #if EV_USE_PORT |
2388 | #if EV_USE_PORT |
1413 | # include "ev_port.c" |
2389 | # include "ev_port.c" |
1414 | #endif |
2390 | #endif |
1415 | #if EV_USE_KQUEUE |
2391 | #if EV_USE_KQUEUE |
1416 | # include "ev_kqueue.c" |
2392 | # include "ev_kqueue.c" |
… | |
… | |
1423 | #endif |
2399 | #endif |
1424 | #if EV_USE_SELECT |
2400 | #if EV_USE_SELECT |
1425 | # include "ev_select.c" |
2401 | # include "ev_select.c" |
1426 | #endif |
2402 | #endif |
1427 | |
2403 | |
1428 | int |
2404 | int ecb_cold |
1429 | ev_version_major (void) |
2405 | ev_version_major (void) EV_THROW |
1430 | { |
2406 | { |
1431 | return EV_VERSION_MAJOR; |
2407 | return EV_VERSION_MAJOR; |
1432 | } |
2408 | } |
1433 | |
2409 | |
1434 | int |
2410 | int ecb_cold |
1435 | ev_version_minor (void) |
2411 | ev_version_minor (void) EV_THROW |
1436 | { |
2412 | { |
1437 | return EV_VERSION_MINOR; |
2413 | return EV_VERSION_MINOR; |
1438 | } |
2414 | } |
1439 | |
2415 | |
1440 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2416 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1441 | int inline_size |
2417 | int inline_size ecb_cold |
1442 | enable_secure (void) |
2418 | enable_secure (void) |
1443 | { |
2419 | { |
1444 | #ifdef _WIN32 |
2420 | #ifdef _WIN32 |
1445 | return 0; |
2421 | return 0; |
1446 | #else |
2422 | #else |
1447 | return getuid () != geteuid () |
2423 | return getuid () != geteuid () |
1448 | || getgid () != getegid (); |
2424 | || getgid () != getegid (); |
1449 | #endif |
2425 | #endif |
1450 | } |
2426 | } |
1451 | |
2427 | |
1452 | unsigned int |
2428 | unsigned int ecb_cold |
1453 | ev_supported_backends (void) |
2429 | ev_supported_backends (void) EV_THROW |
1454 | { |
2430 | { |
1455 | unsigned int flags = 0; |
2431 | unsigned int flags = 0; |
1456 | |
2432 | |
1457 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2433 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1458 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2434 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1461 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2437 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1462 | |
2438 | |
1463 | return flags; |
2439 | return flags; |
1464 | } |
2440 | } |
1465 | |
2441 | |
1466 | unsigned int |
2442 | unsigned int ecb_cold |
1467 | ev_recommended_backends (void) |
2443 | ev_recommended_backends (void) EV_THROW |
1468 | { |
2444 | { |
1469 | unsigned int flags = ev_supported_backends (); |
2445 | unsigned int flags = ev_supported_backends (); |
1470 | |
2446 | |
1471 | #ifndef __NetBSD__ |
2447 | #ifndef __NetBSD__ |
1472 | /* kqueue is borked on everything but netbsd apparently */ |
2448 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1476 | #ifdef __APPLE__ |
2452 | #ifdef __APPLE__ |
1477 | /* only select works correctly on that "unix-certified" platform */ |
2453 | /* only select works correctly on that "unix-certified" platform */ |
1478 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2454 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1479 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2455 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1480 | #endif |
2456 | #endif |
|
|
2457 | #ifdef __FreeBSD__ |
|
|
2458 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2459 | #endif |
1481 | |
2460 | |
1482 | return flags; |
2461 | return flags; |
1483 | } |
2462 | } |
1484 | |
2463 | |
|
|
2464 | unsigned int ecb_cold |
|
|
2465 | ev_embeddable_backends (void) EV_THROW |
|
|
2466 | { |
|
|
2467 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2468 | |
|
|
2469 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2470 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2471 | flags &= ~EVBACKEND_EPOLL; |
|
|
2472 | |
|
|
2473 | return flags; |
|
|
2474 | } |
|
|
2475 | |
1485 | unsigned int |
2476 | unsigned int |
1486 | ev_embeddable_backends (void) |
2477 | ev_backend (EV_P) EV_THROW |
1487 | { |
2478 | { |
1488 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2479 | return backend; |
1489 | |
|
|
1490 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1491 | /* please fix it and tell me how to detect the fix */ |
|
|
1492 | flags &= ~EVBACKEND_EPOLL; |
|
|
1493 | |
|
|
1494 | return flags; |
|
|
1495 | } |
2480 | } |
1496 | |
2481 | |
|
|
2482 | #if EV_FEATURE_API |
1497 | unsigned int |
2483 | unsigned int |
1498 | ev_backend (EV_P) |
2484 | ev_iteration (EV_P) EV_THROW |
1499 | { |
2485 | { |
1500 | return backend; |
2486 | return loop_count; |
1501 | } |
2487 | } |
1502 | |
2488 | |
1503 | #if EV_MINIMAL < 2 |
|
|
1504 | unsigned int |
2489 | unsigned int |
1505 | ev_loop_count (EV_P) |
2490 | ev_depth (EV_P) EV_THROW |
1506 | { |
|
|
1507 | return loop_count; |
|
|
1508 | } |
|
|
1509 | |
|
|
1510 | unsigned int |
|
|
1511 | ev_loop_depth (EV_P) |
|
|
1512 | { |
2491 | { |
1513 | return loop_depth; |
2492 | return loop_depth; |
1514 | } |
2493 | } |
1515 | |
2494 | |
1516 | void |
2495 | void |
1517 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2496 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1518 | { |
2497 | { |
1519 | io_blocktime = interval; |
2498 | io_blocktime = interval; |
1520 | } |
2499 | } |
1521 | |
2500 | |
1522 | void |
2501 | void |
1523 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2502 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1524 | { |
2503 | { |
1525 | timeout_blocktime = interval; |
2504 | timeout_blocktime = interval; |
1526 | } |
2505 | } |
1527 | |
2506 | |
1528 | void |
2507 | void |
1529 | ev_set_userdata (EV_P_ void *data) |
2508 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1530 | { |
2509 | { |
1531 | userdata = data; |
2510 | userdata = data; |
1532 | } |
2511 | } |
1533 | |
2512 | |
1534 | void * |
2513 | void * |
1535 | ev_userdata (EV_P) |
2514 | ev_userdata (EV_P) EV_THROW |
1536 | { |
2515 | { |
1537 | return userdata; |
2516 | return userdata; |
1538 | } |
2517 | } |
1539 | |
2518 | |
|
|
2519 | void |
1540 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2520 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1541 | { |
2521 | { |
1542 | invoke_cb = invoke_pending_cb; |
2522 | invoke_cb = invoke_pending_cb; |
1543 | } |
2523 | } |
1544 | |
2524 | |
|
|
2525 | void |
1545 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2526 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1546 | { |
2527 | { |
1547 | release_cb = release; |
2528 | release_cb = release; |
1548 | acquire_cb = acquire; |
2529 | acquire_cb = acquire; |
1549 | } |
2530 | } |
1550 | #endif |
2531 | #endif |
1551 | |
2532 | |
1552 | /* initialise a loop structure, must be zero-initialised */ |
2533 | /* initialise a loop structure, must be zero-initialised */ |
1553 | static void noinline |
2534 | static void noinline ecb_cold |
1554 | loop_init (EV_P_ unsigned int flags) |
2535 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1555 | { |
2536 | { |
1556 | if (!backend) |
2537 | if (!backend) |
1557 | { |
2538 | { |
|
|
2539 | origflags = flags; |
|
|
2540 | |
1558 | #if EV_USE_REALTIME |
2541 | #if EV_USE_REALTIME |
1559 | if (!have_realtime) |
2542 | if (!have_realtime) |
1560 | { |
2543 | { |
1561 | struct timespec ts; |
2544 | struct timespec ts; |
1562 | |
2545 | |
… | |
… | |
1584 | if (!(flags & EVFLAG_NOENV) |
2567 | if (!(flags & EVFLAG_NOENV) |
1585 | && !enable_secure () |
2568 | && !enable_secure () |
1586 | && getenv ("LIBEV_FLAGS")) |
2569 | && getenv ("LIBEV_FLAGS")) |
1587 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2570 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1588 | |
2571 | |
1589 | ev_rt_now = ev_time (); |
2572 | ev_rt_now = ev_time (); |
1590 | mn_now = get_clock (); |
2573 | mn_now = get_clock (); |
1591 | now_floor = mn_now; |
2574 | now_floor = mn_now; |
1592 | rtmn_diff = ev_rt_now - mn_now; |
2575 | rtmn_diff = ev_rt_now - mn_now; |
1593 | #if EV_MINIMAL < 2 |
2576 | #if EV_FEATURE_API |
1594 | invoke_cb = ev_invoke_pending; |
2577 | invoke_cb = ev_invoke_pending; |
1595 | #endif |
2578 | #endif |
1596 | |
2579 | |
1597 | io_blocktime = 0.; |
2580 | io_blocktime = 0.; |
1598 | timeout_blocktime = 0.; |
2581 | timeout_blocktime = 0.; |
1599 | backend = 0; |
2582 | backend = 0; |
1600 | backend_fd = -1; |
2583 | backend_fd = -1; |
1601 | sig_pending = 0; |
2584 | sig_pending = 0; |
1602 | #if EV_ASYNC_ENABLE |
2585 | #if EV_ASYNC_ENABLE |
1603 | async_pending = 0; |
2586 | async_pending = 0; |
1604 | #endif |
2587 | #endif |
|
|
2588 | pipe_write_skipped = 0; |
|
|
2589 | pipe_write_wanted = 0; |
|
|
2590 | evpipe [0] = -1; |
|
|
2591 | evpipe [1] = -1; |
1605 | #if EV_USE_INOTIFY |
2592 | #if EV_USE_INOTIFY |
1606 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2593 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1607 | #endif |
2594 | #endif |
1608 | #if EV_USE_SIGNALFD |
2595 | #if EV_USE_SIGNALFD |
1609 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
2596 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1610 | #endif |
2597 | #endif |
1611 | |
2598 | |
1612 | if (!(flags & 0x0000ffffU)) |
2599 | if (!(flags & EVBACKEND_MASK)) |
1613 | flags |= ev_recommended_backends (); |
2600 | flags |= ev_recommended_backends (); |
1614 | |
2601 | |
|
|
2602 | #if EV_USE_IOCP |
|
|
2603 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2604 | #endif |
1615 | #if EV_USE_PORT |
2605 | #if EV_USE_PORT |
1616 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2606 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1617 | #endif |
2607 | #endif |
1618 | #if EV_USE_KQUEUE |
2608 | #if EV_USE_KQUEUE |
1619 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2609 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1628 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2618 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1629 | #endif |
2619 | #endif |
1630 | |
2620 | |
1631 | ev_prepare_init (&pending_w, pendingcb); |
2621 | ev_prepare_init (&pending_w, pendingcb); |
1632 | |
2622 | |
|
|
2623 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1633 | ev_init (&pipe_w, pipecb); |
2624 | ev_init (&pipe_w, pipecb); |
1634 | ev_set_priority (&pipe_w, EV_MAXPRI); |
2625 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2626 | #endif |
1635 | } |
2627 | } |
1636 | } |
2628 | } |
1637 | |
2629 | |
1638 | /* free up a loop structure */ |
2630 | /* free up a loop structure */ |
1639 | static void noinline |
2631 | void ecb_cold |
1640 | loop_destroy (EV_P) |
2632 | ev_loop_destroy (EV_P) |
1641 | { |
2633 | { |
1642 | int i; |
2634 | int i; |
|
|
2635 | |
|
|
2636 | #if EV_MULTIPLICITY |
|
|
2637 | /* mimic free (0) */ |
|
|
2638 | if (!EV_A) |
|
|
2639 | return; |
|
|
2640 | #endif |
|
|
2641 | |
|
|
2642 | #if EV_CLEANUP_ENABLE |
|
|
2643 | /* queue cleanup watchers (and execute them) */ |
|
|
2644 | if (expect_false (cleanupcnt)) |
|
|
2645 | { |
|
|
2646 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2647 | EV_INVOKE_PENDING; |
|
|
2648 | } |
|
|
2649 | #endif |
|
|
2650 | |
|
|
2651 | #if EV_CHILD_ENABLE |
|
|
2652 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2653 | { |
|
|
2654 | ev_ref (EV_A); /* child watcher */ |
|
|
2655 | ev_signal_stop (EV_A_ &childev); |
|
|
2656 | } |
|
|
2657 | #endif |
1643 | |
2658 | |
1644 | if (ev_is_active (&pipe_w)) |
2659 | if (ev_is_active (&pipe_w)) |
1645 | { |
2660 | { |
1646 | /*ev_ref (EV_A);*/ |
2661 | /*ev_ref (EV_A);*/ |
1647 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2662 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1648 | |
2663 | |
1649 | #if EV_USE_EVENTFD |
|
|
1650 | if (evfd >= 0) |
|
|
1651 | close (evfd); |
|
|
1652 | #endif |
|
|
1653 | |
|
|
1654 | if (evpipe [0] >= 0) |
|
|
1655 | { |
|
|
1656 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2664 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1657 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2665 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1658 | } |
|
|
1659 | } |
2666 | } |
1660 | |
2667 | |
1661 | #if EV_USE_SIGNALFD |
2668 | #if EV_USE_SIGNALFD |
1662 | if (ev_is_active (&sigfd_w)) |
2669 | if (ev_is_active (&sigfd_w)) |
1663 | close (sigfd); |
2670 | close (sigfd); |
… | |
… | |
1669 | #endif |
2676 | #endif |
1670 | |
2677 | |
1671 | if (backend_fd >= 0) |
2678 | if (backend_fd >= 0) |
1672 | close (backend_fd); |
2679 | close (backend_fd); |
1673 | |
2680 | |
|
|
2681 | #if EV_USE_IOCP |
|
|
2682 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2683 | #endif |
1674 | #if EV_USE_PORT |
2684 | #if EV_USE_PORT |
1675 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2685 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1676 | #endif |
2686 | #endif |
1677 | #if EV_USE_KQUEUE |
2687 | #if EV_USE_KQUEUE |
1678 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2688 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1705 | array_free (periodic, EMPTY); |
2715 | array_free (periodic, EMPTY); |
1706 | #endif |
2716 | #endif |
1707 | #if EV_FORK_ENABLE |
2717 | #if EV_FORK_ENABLE |
1708 | array_free (fork, EMPTY); |
2718 | array_free (fork, EMPTY); |
1709 | #endif |
2719 | #endif |
|
|
2720 | #if EV_CLEANUP_ENABLE |
|
|
2721 | array_free (cleanup, EMPTY); |
|
|
2722 | #endif |
1710 | array_free (prepare, EMPTY); |
2723 | array_free (prepare, EMPTY); |
1711 | array_free (check, EMPTY); |
2724 | array_free (check, EMPTY); |
1712 | #if EV_ASYNC_ENABLE |
2725 | #if EV_ASYNC_ENABLE |
1713 | array_free (async, EMPTY); |
2726 | array_free (async, EMPTY); |
1714 | #endif |
2727 | #endif |
1715 | |
2728 | |
1716 | backend = 0; |
2729 | backend = 0; |
|
|
2730 | |
|
|
2731 | #if EV_MULTIPLICITY |
|
|
2732 | if (ev_is_default_loop (EV_A)) |
|
|
2733 | #endif |
|
|
2734 | ev_default_loop_ptr = 0; |
|
|
2735 | #if EV_MULTIPLICITY |
|
|
2736 | else |
|
|
2737 | ev_free (EV_A); |
|
|
2738 | #endif |
1717 | } |
2739 | } |
1718 | |
2740 | |
1719 | #if EV_USE_INOTIFY |
2741 | #if EV_USE_INOTIFY |
1720 | inline_size void infy_fork (EV_P); |
2742 | inline_size void infy_fork (EV_P); |
1721 | #endif |
2743 | #endif |
… | |
… | |
1734 | #endif |
2756 | #endif |
1735 | #if EV_USE_INOTIFY |
2757 | #if EV_USE_INOTIFY |
1736 | infy_fork (EV_A); |
2758 | infy_fork (EV_A); |
1737 | #endif |
2759 | #endif |
1738 | |
2760 | |
|
|
2761 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1739 | if (ev_is_active (&pipe_w)) |
2762 | if (ev_is_active (&pipe_w)) |
1740 | { |
2763 | { |
1741 | /* this "locks" the handlers against writing to the pipe */ |
2764 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1742 | /* while we modify the fd vars */ |
|
|
1743 | sig_pending = 1; |
|
|
1744 | #if EV_ASYNC_ENABLE |
|
|
1745 | async_pending = 1; |
|
|
1746 | #endif |
|
|
1747 | |
2765 | |
1748 | ev_ref (EV_A); |
2766 | ev_ref (EV_A); |
1749 | ev_io_stop (EV_A_ &pipe_w); |
2767 | ev_io_stop (EV_A_ &pipe_w); |
1750 | |
2768 | |
1751 | #if EV_USE_EVENTFD |
|
|
1752 | if (evfd >= 0) |
|
|
1753 | close (evfd); |
|
|
1754 | #endif |
|
|
1755 | |
|
|
1756 | if (evpipe [0] >= 0) |
2769 | if (evpipe [0] >= 0) |
1757 | { |
|
|
1758 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2770 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1759 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1760 | } |
|
|
1761 | |
2771 | |
1762 | evpipe_init (EV_A); |
2772 | evpipe_init (EV_A); |
1763 | /* now iterate over everything, in case we missed something */ |
2773 | /* iterate over everything, in case we missed something before */ |
1764 | pipecb (EV_A_ &pipe_w, EV_READ); |
2774 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1765 | } |
2775 | } |
|
|
2776 | #endif |
1766 | |
2777 | |
1767 | postfork = 0; |
2778 | postfork = 0; |
1768 | } |
2779 | } |
1769 | |
2780 | |
1770 | #if EV_MULTIPLICITY |
2781 | #if EV_MULTIPLICITY |
1771 | |
2782 | |
1772 | struct ev_loop * |
2783 | struct ev_loop * ecb_cold |
1773 | ev_loop_new (unsigned int flags) |
2784 | ev_loop_new (unsigned int flags) EV_THROW |
1774 | { |
2785 | { |
1775 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2786 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1776 | |
2787 | |
1777 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2788 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1778 | loop_init (EV_A_ flags); |
2789 | loop_init (EV_A_ flags); |
1779 | |
2790 | |
1780 | if (ev_backend (EV_A)) |
2791 | if (ev_backend (EV_A)) |
1781 | return EV_A; |
2792 | return EV_A; |
1782 | |
2793 | |
|
|
2794 | ev_free (EV_A); |
1783 | return 0; |
2795 | return 0; |
1784 | } |
2796 | } |
1785 | |
2797 | |
1786 | void |
|
|
1787 | ev_loop_destroy (EV_P) |
|
|
1788 | { |
|
|
1789 | loop_destroy (EV_A); |
|
|
1790 | ev_free (loop); |
|
|
1791 | } |
|
|
1792 | |
|
|
1793 | void |
|
|
1794 | ev_loop_fork (EV_P) |
|
|
1795 | { |
|
|
1796 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1797 | } |
|
|
1798 | #endif /* multiplicity */ |
2798 | #endif /* multiplicity */ |
1799 | |
2799 | |
1800 | #if EV_VERIFY |
2800 | #if EV_VERIFY |
1801 | static void noinline |
2801 | static void noinline ecb_cold |
1802 | verify_watcher (EV_P_ W w) |
2802 | verify_watcher (EV_P_ W w) |
1803 | { |
2803 | { |
1804 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2804 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1805 | |
2805 | |
1806 | if (w->pending) |
2806 | if (w->pending) |
1807 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2807 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1808 | } |
2808 | } |
1809 | |
2809 | |
1810 | static void noinline |
2810 | static void noinline ecb_cold |
1811 | verify_heap (EV_P_ ANHE *heap, int N) |
2811 | verify_heap (EV_P_ ANHE *heap, int N) |
1812 | { |
2812 | { |
1813 | int i; |
2813 | int i; |
1814 | |
2814 | |
1815 | for (i = HEAP0; i < N + HEAP0; ++i) |
2815 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1820 | |
2820 | |
1821 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2821 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1822 | } |
2822 | } |
1823 | } |
2823 | } |
1824 | |
2824 | |
1825 | static void noinline |
2825 | static void noinline ecb_cold |
1826 | array_verify (EV_P_ W *ws, int cnt) |
2826 | array_verify (EV_P_ W *ws, int cnt) |
1827 | { |
2827 | { |
1828 | while (cnt--) |
2828 | while (cnt--) |
1829 | { |
2829 | { |
1830 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2830 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1831 | verify_watcher (EV_A_ ws [cnt]); |
2831 | verify_watcher (EV_A_ ws [cnt]); |
1832 | } |
2832 | } |
1833 | } |
2833 | } |
1834 | #endif |
2834 | #endif |
1835 | |
2835 | |
1836 | #if EV_MINIMAL < 2 |
2836 | #if EV_FEATURE_API |
1837 | void |
2837 | void ecb_cold |
1838 | ev_loop_verify (EV_P) |
2838 | ev_verify (EV_P) EV_THROW |
1839 | { |
2839 | { |
1840 | #if EV_VERIFY |
2840 | #if EV_VERIFY |
1841 | int i; |
2841 | int i; |
1842 | WL w; |
2842 | WL w, w2; |
1843 | |
2843 | |
1844 | assert (activecnt >= -1); |
2844 | assert (activecnt >= -1); |
1845 | |
2845 | |
1846 | assert (fdchangemax >= fdchangecnt); |
2846 | assert (fdchangemax >= fdchangecnt); |
1847 | for (i = 0; i < fdchangecnt; ++i) |
2847 | for (i = 0; i < fdchangecnt; ++i) |
1848 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2848 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1849 | |
2849 | |
1850 | assert (anfdmax >= 0); |
2850 | assert (anfdmax >= 0); |
1851 | for (i = 0; i < anfdmax; ++i) |
2851 | for (i = 0; i < anfdmax; ++i) |
|
|
2852 | { |
|
|
2853 | int j = 0; |
|
|
2854 | |
1852 | for (w = anfds [i].head; w; w = w->next) |
2855 | for (w = w2 = anfds [i].head; w; w = w->next) |
1853 | { |
2856 | { |
1854 | verify_watcher (EV_A_ (W)w); |
2857 | verify_watcher (EV_A_ (W)w); |
|
|
2858 | |
|
|
2859 | if (j++ & 1) |
|
|
2860 | { |
|
|
2861 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2862 | w2 = w2->next; |
|
|
2863 | } |
|
|
2864 | |
1855 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2865 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1856 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2866 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1857 | } |
2867 | } |
|
|
2868 | } |
1858 | |
2869 | |
1859 | assert (timermax >= timercnt); |
2870 | assert (timermax >= timercnt); |
1860 | verify_heap (EV_A_ timers, timercnt); |
2871 | verify_heap (EV_A_ timers, timercnt); |
1861 | |
2872 | |
1862 | #if EV_PERIODIC_ENABLE |
2873 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1877 | #if EV_FORK_ENABLE |
2888 | #if EV_FORK_ENABLE |
1878 | assert (forkmax >= forkcnt); |
2889 | assert (forkmax >= forkcnt); |
1879 | array_verify (EV_A_ (W *)forks, forkcnt); |
2890 | array_verify (EV_A_ (W *)forks, forkcnt); |
1880 | #endif |
2891 | #endif |
1881 | |
2892 | |
|
|
2893 | #if EV_CLEANUP_ENABLE |
|
|
2894 | assert (cleanupmax >= cleanupcnt); |
|
|
2895 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2896 | #endif |
|
|
2897 | |
1882 | #if EV_ASYNC_ENABLE |
2898 | #if EV_ASYNC_ENABLE |
1883 | assert (asyncmax >= asynccnt); |
2899 | assert (asyncmax >= asynccnt); |
1884 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2900 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1885 | #endif |
2901 | #endif |
1886 | |
2902 | |
|
|
2903 | #if EV_PREPARE_ENABLE |
1887 | assert (preparemax >= preparecnt); |
2904 | assert (preparemax >= preparecnt); |
1888 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2905 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2906 | #endif |
1889 | |
2907 | |
|
|
2908 | #if EV_CHECK_ENABLE |
1890 | assert (checkmax >= checkcnt); |
2909 | assert (checkmax >= checkcnt); |
1891 | array_verify (EV_A_ (W *)checks, checkcnt); |
2910 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2911 | #endif |
1892 | |
2912 | |
1893 | # if 0 |
2913 | # if 0 |
|
|
2914 | #if EV_CHILD_ENABLE |
1894 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2915 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1895 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
2916 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2917 | #endif |
1896 | # endif |
2918 | # endif |
1897 | #endif |
2919 | #endif |
1898 | } |
2920 | } |
1899 | #endif |
2921 | #endif |
1900 | |
2922 | |
1901 | #if EV_MULTIPLICITY |
2923 | #if EV_MULTIPLICITY |
1902 | struct ev_loop * |
2924 | struct ev_loop * ecb_cold |
1903 | ev_default_loop_init (unsigned int flags) |
|
|
1904 | #else |
2925 | #else |
1905 | int |
2926 | int |
|
|
2927 | #endif |
1906 | ev_default_loop (unsigned int flags) |
2928 | ev_default_loop (unsigned int flags) EV_THROW |
1907 | #endif |
|
|
1908 | { |
2929 | { |
1909 | if (!ev_default_loop_ptr) |
2930 | if (!ev_default_loop_ptr) |
1910 | { |
2931 | { |
1911 | #if EV_MULTIPLICITY |
2932 | #if EV_MULTIPLICITY |
1912 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2933 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1916 | |
2937 | |
1917 | loop_init (EV_A_ flags); |
2938 | loop_init (EV_A_ flags); |
1918 | |
2939 | |
1919 | if (ev_backend (EV_A)) |
2940 | if (ev_backend (EV_A)) |
1920 | { |
2941 | { |
1921 | #ifndef _WIN32 |
2942 | #if EV_CHILD_ENABLE |
1922 | ev_signal_init (&childev, childcb, SIGCHLD); |
2943 | ev_signal_init (&childev, childcb, SIGCHLD); |
1923 | ev_set_priority (&childev, EV_MAXPRI); |
2944 | ev_set_priority (&childev, EV_MAXPRI); |
1924 | ev_signal_start (EV_A_ &childev); |
2945 | ev_signal_start (EV_A_ &childev); |
1925 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2946 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1926 | #endif |
2947 | #endif |
… | |
… | |
1931 | |
2952 | |
1932 | return ev_default_loop_ptr; |
2953 | return ev_default_loop_ptr; |
1933 | } |
2954 | } |
1934 | |
2955 | |
1935 | void |
2956 | void |
1936 | ev_default_destroy (void) |
2957 | ev_loop_fork (EV_P) EV_THROW |
1937 | { |
2958 | { |
1938 | #if EV_MULTIPLICITY |
2959 | postfork = 1; |
1939 | EV_P = ev_default_loop_ptr; |
|
|
1940 | #endif |
|
|
1941 | |
|
|
1942 | ev_default_loop_ptr = 0; |
|
|
1943 | |
|
|
1944 | #ifndef _WIN32 |
|
|
1945 | ev_ref (EV_A); /* child watcher */ |
|
|
1946 | ev_signal_stop (EV_A_ &childev); |
|
|
1947 | #endif |
|
|
1948 | |
|
|
1949 | loop_destroy (EV_A); |
|
|
1950 | } |
|
|
1951 | |
|
|
1952 | void |
|
|
1953 | ev_default_fork (void) |
|
|
1954 | { |
|
|
1955 | #if EV_MULTIPLICITY |
|
|
1956 | EV_P = ev_default_loop_ptr; |
|
|
1957 | #endif |
|
|
1958 | |
|
|
1959 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1960 | } |
2960 | } |
1961 | |
2961 | |
1962 | /*****************************************************************************/ |
2962 | /*****************************************************************************/ |
1963 | |
2963 | |
1964 | void |
2964 | void |
… | |
… | |
1966 | { |
2966 | { |
1967 | EV_CB_INVOKE ((W)w, revents); |
2967 | EV_CB_INVOKE ((W)w, revents); |
1968 | } |
2968 | } |
1969 | |
2969 | |
1970 | unsigned int |
2970 | unsigned int |
1971 | ev_pending_count (EV_P) |
2971 | ev_pending_count (EV_P) EV_THROW |
1972 | { |
2972 | { |
1973 | int pri; |
2973 | int pri; |
1974 | unsigned int count = 0; |
2974 | unsigned int count = 0; |
1975 | |
2975 | |
1976 | for (pri = NUMPRI; pri--; ) |
2976 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1980 | } |
2980 | } |
1981 | |
2981 | |
1982 | void noinline |
2982 | void noinline |
1983 | ev_invoke_pending (EV_P) |
2983 | ev_invoke_pending (EV_P) |
1984 | { |
2984 | { |
1985 | int pri; |
2985 | pendingpri = NUMPRI; |
1986 | |
2986 | |
1987 | for (pri = NUMPRI; pri--; ) |
2987 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2988 | { |
|
|
2989 | --pendingpri; |
|
|
2990 | |
1988 | while (pendingcnt [pri]) |
2991 | while (pendingcnt [pendingpri]) |
1989 | { |
2992 | { |
1990 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2993 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1991 | |
2994 | |
1992 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1993 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1994 | |
|
|
1995 | p->w->pending = 0; |
2995 | p->w->pending = 0; |
1996 | EV_CB_INVOKE (p->w, p->events); |
2996 | EV_CB_INVOKE (p->w, p->events); |
1997 | EV_FREQUENT_CHECK; |
2997 | EV_FREQUENT_CHECK; |
1998 | } |
2998 | } |
|
|
2999 | } |
1999 | } |
3000 | } |
2000 | |
3001 | |
2001 | #if EV_IDLE_ENABLE |
3002 | #if EV_IDLE_ENABLE |
2002 | /* make idle watchers pending. this handles the "call-idle */ |
3003 | /* make idle watchers pending. this handles the "call-idle */ |
2003 | /* only when higher priorities are idle" logic */ |
3004 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2055 | EV_FREQUENT_CHECK; |
3056 | EV_FREQUENT_CHECK; |
2056 | feed_reverse (EV_A_ (W)w); |
3057 | feed_reverse (EV_A_ (W)w); |
2057 | } |
3058 | } |
2058 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3059 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2059 | |
3060 | |
2060 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3061 | feed_reverse_done (EV_A_ EV_TIMER); |
2061 | } |
3062 | } |
2062 | } |
3063 | } |
2063 | |
3064 | |
2064 | #if EV_PERIODIC_ENABLE |
3065 | #if EV_PERIODIC_ENABLE |
|
|
3066 | |
|
|
3067 | static void noinline |
|
|
3068 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3069 | { |
|
|
3070 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3071 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3072 | |
|
|
3073 | /* the above almost always errs on the low side */ |
|
|
3074 | while (at <= ev_rt_now) |
|
|
3075 | { |
|
|
3076 | ev_tstamp nat = at + w->interval; |
|
|
3077 | |
|
|
3078 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3079 | if (expect_false (nat == at)) |
|
|
3080 | { |
|
|
3081 | at = ev_rt_now; |
|
|
3082 | break; |
|
|
3083 | } |
|
|
3084 | |
|
|
3085 | at = nat; |
|
|
3086 | } |
|
|
3087 | |
|
|
3088 | ev_at (w) = at; |
|
|
3089 | } |
|
|
3090 | |
2065 | /* make periodics pending */ |
3091 | /* make periodics pending */ |
2066 | inline_size void |
3092 | inline_size void |
2067 | periodics_reify (EV_P) |
3093 | periodics_reify (EV_P) |
2068 | { |
3094 | { |
2069 | EV_FREQUENT_CHECK; |
3095 | EV_FREQUENT_CHECK; |
2070 | |
3096 | |
2071 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3097 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2072 | { |
3098 | { |
2073 | int feed_count = 0; |
|
|
2074 | |
|
|
2075 | do |
3099 | do |
2076 | { |
3100 | { |
2077 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3101 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2078 | |
3102 | |
2079 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3103 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2088 | ANHE_at_cache (periodics [HEAP0]); |
3112 | ANHE_at_cache (periodics [HEAP0]); |
2089 | downheap (periodics, periodiccnt, HEAP0); |
3113 | downheap (periodics, periodiccnt, HEAP0); |
2090 | } |
3114 | } |
2091 | else if (w->interval) |
3115 | else if (w->interval) |
2092 | { |
3116 | { |
2093 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3117 | periodic_recalc (EV_A_ w); |
2094 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2095 | /* this might happen because of floating point inexactness */ |
|
|
2096 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2097 | { |
|
|
2098 | ev_at (w) += w->interval; |
|
|
2099 | |
|
|
2100 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2101 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2102 | /* has effectively asked to get triggered more often than possible */ |
|
|
2103 | if (ev_at (w) < ev_rt_now) |
|
|
2104 | ev_at (w) = ev_rt_now; |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | ANHE_at_cache (periodics [HEAP0]); |
3118 | ANHE_at_cache (periodics [HEAP0]); |
2108 | downheap (periodics, periodiccnt, HEAP0); |
3119 | downheap (periodics, periodiccnt, HEAP0); |
2109 | } |
3120 | } |
2110 | else |
3121 | else |
2111 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3122 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2118 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3129 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2119 | } |
3130 | } |
2120 | } |
3131 | } |
2121 | |
3132 | |
2122 | /* simply recalculate all periodics */ |
3133 | /* simply recalculate all periodics */ |
2123 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3134 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2124 | static void noinline |
3135 | static void noinline ecb_cold |
2125 | periodics_reschedule (EV_P) |
3136 | periodics_reschedule (EV_P) |
2126 | { |
3137 | { |
2127 | int i; |
3138 | int i; |
2128 | |
3139 | |
2129 | /* adjust periodics after time jump */ |
3140 | /* adjust periodics after time jump */ |
… | |
… | |
2132 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3143 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2133 | |
3144 | |
2134 | if (w->reschedule_cb) |
3145 | if (w->reschedule_cb) |
2135 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3146 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2136 | else if (w->interval) |
3147 | else if (w->interval) |
2137 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3148 | periodic_recalc (EV_A_ w); |
2138 | |
3149 | |
2139 | ANHE_at_cache (periodics [i]); |
3150 | ANHE_at_cache (periodics [i]); |
2140 | } |
3151 | } |
2141 | |
3152 | |
2142 | reheap (periodics, periodiccnt); |
3153 | reheap (periodics, periodiccnt); |
2143 | } |
3154 | } |
2144 | #endif |
3155 | #endif |
2145 | |
3156 | |
2146 | /* adjust all timers by a given offset */ |
3157 | /* adjust all timers by a given offset */ |
2147 | static void noinline |
3158 | static void noinline ecb_cold |
2148 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3159 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2149 | { |
3160 | { |
2150 | int i; |
3161 | int i; |
2151 | |
3162 | |
2152 | for (i = 0; i < timercnt; ++i) |
3163 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2156 | ANHE_at_cache (*he); |
3167 | ANHE_at_cache (*he); |
2157 | } |
3168 | } |
2158 | } |
3169 | } |
2159 | |
3170 | |
2160 | /* fetch new monotonic and realtime times from the kernel */ |
3171 | /* fetch new monotonic and realtime times from the kernel */ |
2161 | /* also detetc if there was a timejump, and act accordingly */ |
3172 | /* also detect if there was a timejump, and act accordingly */ |
2162 | inline_speed void |
3173 | inline_speed void |
2163 | time_update (EV_P_ ev_tstamp max_block) |
3174 | time_update (EV_P_ ev_tstamp max_block) |
2164 | { |
3175 | { |
2165 | #if EV_USE_MONOTONIC |
3176 | #if EV_USE_MONOTONIC |
2166 | if (expect_true (have_monotonic)) |
3177 | if (expect_true (have_monotonic)) |
… | |
… | |
2189 | * doesn't hurt either as we only do this on time-jumps or |
3200 | * doesn't hurt either as we only do this on time-jumps or |
2190 | * in the unlikely event of having been preempted here. |
3201 | * in the unlikely event of having been preempted here. |
2191 | */ |
3202 | */ |
2192 | for (i = 4; --i; ) |
3203 | for (i = 4; --i; ) |
2193 | { |
3204 | { |
|
|
3205 | ev_tstamp diff; |
2194 | rtmn_diff = ev_rt_now - mn_now; |
3206 | rtmn_diff = ev_rt_now - mn_now; |
2195 | |
3207 | |
|
|
3208 | diff = odiff - rtmn_diff; |
|
|
3209 | |
2196 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3210 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2197 | return; /* all is well */ |
3211 | return; /* all is well */ |
2198 | |
3212 | |
2199 | ev_rt_now = ev_time (); |
3213 | ev_rt_now = ev_time (); |
2200 | mn_now = get_clock (); |
3214 | mn_now = get_clock (); |
2201 | now_floor = mn_now; |
3215 | now_floor = mn_now; |
… | |
… | |
2223 | |
3237 | |
2224 | mn_now = ev_rt_now; |
3238 | mn_now = ev_rt_now; |
2225 | } |
3239 | } |
2226 | } |
3240 | } |
2227 | |
3241 | |
2228 | void |
3242 | int |
2229 | ev_loop (EV_P_ int flags) |
3243 | ev_run (EV_P_ int flags) |
2230 | { |
3244 | { |
2231 | #if EV_MINIMAL < 2 |
3245 | #if EV_FEATURE_API |
2232 | ++loop_depth; |
3246 | ++loop_depth; |
2233 | #endif |
3247 | #endif |
2234 | |
3248 | |
2235 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
3249 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2236 | |
3250 | |
2237 | loop_done = EVUNLOOP_CANCEL; |
3251 | loop_done = EVBREAK_CANCEL; |
2238 | |
3252 | |
2239 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3253 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2240 | |
3254 | |
2241 | do |
3255 | do |
2242 | { |
3256 | { |
2243 | #if EV_VERIFY >= 2 |
3257 | #if EV_VERIFY >= 2 |
2244 | ev_loop_verify (EV_A); |
3258 | ev_verify (EV_A); |
2245 | #endif |
3259 | #endif |
2246 | |
3260 | |
2247 | #ifndef _WIN32 |
3261 | #ifndef _WIN32 |
2248 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3262 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2249 | if (expect_false (getpid () != curpid)) |
3263 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2261 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3275 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2262 | EV_INVOKE_PENDING; |
3276 | EV_INVOKE_PENDING; |
2263 | } |
3277 | } |
2264 | #endif |
3278 | #endif |
2265 | |
3279 | |
|
|
3280 | #if EV_PREPARE_ENABLE |
2266 | /* queue prepare watchers (and execute them) */ |
3281 | /* queue prepare watchers (and execute them) */ |
2267 | if (expect_false (preparecnt)) |
3282 | if (expect_false (preparecnt)) |
2268 | { |
3283 | { |
2269 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3284 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2270 | EV_INVOKE_PENDING; |
3285 | EV_INVOKE_PENDING; |
2271 | } |
3286 | } |
|
|
3287 | #endif |
2272 | |
3288 | |
2273 | if (expect_false (loop_done)) |
3289 | if (expect_false (loop_done)) |
2274 | break; |
3290 | break; |
2275 | |
3291 | |
2276 | /* we might have forked, so reify kernel state if necessary */ |
3292 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2283 | /* calculate blocking time */ |
3299 | /* calculate blocking time */ |
2284 | { |
3300 | { |
2285 | ev_tstamp waittime = 0.; |
3301 | ev_tstamp waittime = 0.; |
2286 | ev_tstamp sleeptime = 0.; |
3302 | ev_tstamp sleeptime = 0.; |
2287 | |
3303 | |
|
|
3304 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3305 | ev_tstamp prev_mn_now = mn_now; |
|
|
3306 | |
|
|
3307 | /* update time to cancel out callback processing overhead */ |
|
|
3308 | time_update (EV_A_ 1e100); |
|
|
3309 | |
|
|
3310 | /* from now on, we want a pipe-wake-up */ |
|
|
3311 | pipe_write_wanted = 1; |
|
|
3312 | |
|
|
3313 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3314 | |
2288 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3315 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2289 | { |
3316 | { |
2290 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2291 | ev_tstamp prev_mn_now = mn_now; |
|
|
2292 | |
|
|
2293 | /* update time to cancel out callback processing overhead */ |
|
|
2294 | time_update (EV_A_ 1e100); |
|
|
2295 | |
|
|
2296 | waittime = MAX_BLOCKTIME; |
3317 | waittime = MAX_BLOCKTIME; |
2297 | |
3318 | |
2298 | if (timercnt) |
3319 | if (timercnt) |
2299 | { |
3320 | { |
2300 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3321 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2301 | if (waittime > to) waittime = to; |
3322 | if (waittime > to) waittime = to; |
2302 | } |
3323 | } |
2303 | |
3324 | |
2304 | #if EV_PERIODIC_ENABLE |
3325 | #if EV_PERIODIC_ENABLE |
2305 | if (periodiccnt) |
3326 | if (periodiccnt) |
2306 | { |
3327 | { |
2307 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3328 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2308 | if (waittime > to) waittime = to; |
3329 | if (waittime > to) waittime = to; |
2309 | } |
3330 | } |
2310 | #endif |
3331 | #endif |
2311 | |
3332 | |
2312 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3333 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2313 | if (expect_false (waittime < timeout_blocktime)) |
3334 | if (expect_false (waittime < timeout_blocktime)) |
2314 | waittime = timeout_blocktime; |
3335 | waittime = timeout_blocktime; |
|
|
3336 | |
|
|
3337 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3338 | /* to pass a minimum nonzero value to the backend */ |
|
|
3339 | if (expect_false (waittime < backend_mintime)) |
|
|
3340 | waittime = backend_mintime; |
2315 | |
3341 | |
2316 | /* extra check because io_blocktime is commonly 0 */ |
3342 | /* extra check because io_blocktime is commonly 0 */ |
2317 | if (expect_false (io_blocktime)) |
3343 | if (expect_false (io_blocktime)) |
2318 | { |
3344 | { |
2319 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3345 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2320 | |
3346 | |
2321 | if (sleeptime > waittime - backend_fudge) |
3347 | if (sleeptime > waittime - backend_mintime) |
2322 | sleeptime = waittime - backend_fudge; |
3348 | sleeptime = waittime - backend_mintime; |
2323 | |
3349 | |
2324 | if (expect_true (sleeptime > 0.)) |
3350 | if (expect_true (sleeptime > 0.)) |
2325 | { |
3351 | { |
2326 | ev_sleep (sleeptime); |
3352 | ev_sleep (sleeptime); |
2327 | waittime -= sleeptime; |
3353 | waittime -= sleeptime; |
2328 | } |
3354 | } |
2329 | } |
3355 | } |
2330 | } |
3356 | } |
2331 | |
3357 | |
2332 | #if EV_MINIMAL < 2 |
3358 | #if EV_FEATURE_API |
2333 | ++loop_count; |
3359 | ++loop_count; |
2334 | #endif |
3360 | #endif |
2335 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3361 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2336 | backend_poll (EV_A_ waittime); |
3362 | backend_poll (EV_A_ waittime); |
2337 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3363 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3364 | |
|
|
3365 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3366 | |
|
|
3367 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3368 | if (pipe_write_skipped) |
|
|
3369 | { |
|
|
3370 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3371 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3372 | } |
|
|
3373 | |
2338 | |
3374 | |
2339 | /* update ev_rt_now, do magic */ |
3375 | /* update ev_rt_now, do magic */ |
2340 | time_update (EV_A_ waittime + sleeptime); |
3376 | time_update (EV_A_ waittime + sleeptime); |
2341 | } |
3377 | } |
2342 | |
3378 | |
… | |
… | |
2349 | #if EV_IDLE_ENABLE |
3385 | #if EV_IDLE_ENABLE |
2350 | /* queue idle watchers unless other events are pending */ |
3386 | /* queue idle watchers unless other events are pending */ |
2351 | idle_reify (EV_A); |
3387 | idle_reify (EV_A); |
2352 | #endif |
3388 | #endif |
2353 | |
3389 | |
|
|
3390 | #if EV_CHECK_ENABLE |
2354 | /* queue check watchers, to be executed first */ |
3391 | /* queue check watchers, to be executed first */ |
2355 | if (expect_false (checkcnt)) |
3392 | if (expect_false (checkcnt)) |
2356 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3393 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3394 | #endif |
2357 | |
3395 | |
2358 | EV_INVOKE_PENDING; |
3396 | EV_INVOKE_PENDING; |
2359 | } |
3397 | } |
2360 | while (expect_true ( |
3398 | while (expect_true ( |
2361 | activecnt |
3399 | activecnt |
2362 | && !loop_done |
3400 | && !loop_done |
2363 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3401 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2364 | )); |
3402 | )); |
2365 | |
3403 | |
2366 | if (loop_done == EVUNLOOP_ONE) |
3404 | if (loop_done == EVBREAK_ONE) |
2367 | loop_done = EVUNLOOP_CANCEL; |
3405 | loop_done = EVBREAK_CANCEL; |
2368 | |
3406 | |
2369 | #if EV_MINIMAL < 2 |
3407 | #if EV_FEATURE_API |
2370 | --loop_depth; |
3408 | --loop_depth; |
2371 | #endif |
3409 | #endif |
|
|
3410 | |
|
|
3411 | return activecnt; |
2372 | } |
3412 | } |
2373 | |
3413 | |
2374 | void |
3414 | void |
2375 | ev_unloop (EV_P_ int how) |
3415 | ev_break (EV_P_ int how) EV_THROW |
2376 | { |
3416 | { |
2377 | loop_done = how; |
3417 | loop_done = how; |
2378 | } |
3418 | } |
2379 | |
3419 | |
2380 | void |
3420 | void |
2381 | ev_ref (EV_P) |
3421 | ev_ref (EV_P) EV_THROW |
2382 | { |
3422 | { |
2383 | ++activecnt; |
3423 | ++activecnt; |
2384 | } |
3424 | } |
2385 | |
3425 | |
2386 | void |
3426 | void |
2387 | ev_unref (EV_P) |
3427 | ev_unref (EV_P) EV_THROW |
2388 | { |
3428 | { |
2389 | --activecnt; |
3429 | --activecnt; |
2390 | } |
3430 | } |
2391 | |
3431 | |
2392 | void |
3432 | void |
2393 | ev_now_update (EV_P) |
3433 | ev_now_update (EV_P) EV_THROW |
2394 | { |
3434 | { |
2395 | time_update (EV_A_ 1e100); |
3435 | time_update (EV_A_ 1e100); |
2396 | } |
3436 | } |
2397 | |
3437 | |
2398 | void |
3438 | void |
2399 | ev_suspend (EV_P) |
3439 | ev_suspend (EV_P) EV_THROW |
2400 | { |
3440 | { |
2401 | ev_now_update (EV_A); |
3441 | ev_now_update (EV_A); |
2402 | } |
3442 | } |
2403 | |
3443 | |
2404 | void |
3444 | void |
2405 | ev_resume (EV_P) |
3445 | ev_resume (EV_P) EV_THROW |
2406 | { |
3446 | { |
2407 | ev_tstamp mn_prev = mn_now; |
3447 | ev_tstamp mn_prev = mn_now; |
2408 | |
3448 | |
2409 | ev_now_update (EV_A); |
3449 | ev_now_update (EV_A); |
2410 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3450 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2449 | w->pending = 0; |
3489 | w->pending = 0; |
2450 | } |
3490 | } |
2451 | } |
3491 | } |
2452 | |
3492 | |
2453 | int |
3493 | int |
2454 | ev_clear_pending (EV_P_ void *w) |
3494 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2455 | { |
3495 | { |
2456 | W w_ = (W)w; |
3496 | W w_ = (W)w; |
2457 | int pending = w_->pending; |
3497 | int pending = w_->pending; |
2458 | |
3498 | |
2459 | if (expect_true (pending)) |
3499 | if (expect_true (pending)) |
… | |
… | |
2492 | } |
3532 | } |
2493 | |
3533 | |
2494 | /*****************************************************************************/ |
3534 | /*****************************************************************************/ |
2495 | |
3535 | |
2496 | void noinline |
3536 | void noinline |
2497 | ev_io_start (EV_P_ ev_io *w) |
3537 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2498 | { |
3538 | { |
2499 | int fd = w->fd; |
3539 | int fd = w->fd; |
2500 | |
3540 | |
2501 | if (expect_false (ev_is_active (w))) |
3541 | if (expect_false (ev_is_active (w))) |
2502 | return; |
3542 | return; |
2503 | |
3543 | |
2504 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3544 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2505 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3545 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2506 | |
3546 | |
2507 | EV_FREQUENT_CHECK; |
3547 | EV_FREQUENT_CHECK; |
2508 | |
3548 | |
2509 | ev_start (EV_A_ (W)w, 1); |
3549 | ev_start (EV_A_ (W)w, 1); |
2510 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3550 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2511 | wlist_add (&anfds[fd].head, (WL)w); |
3551 | wlist_add (&anfds[fd].head, (WL)w); |
2512 | |
3552 | |
|
|
3553 | /* common bug, apparently */ |
|
|
3554 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3555 | |
2513 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3556 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2514 | w->events &= ~EV__IOFDSET; |
3557 | w->events &= ~EV__IOFDSET; |
2515 | |
3558 | |
2516 | EV_FREQUENT_CHECK; |
3559 | EV_FREQUENT_CHECK; |
2517 | } |
3560 | } |
2518 | |
3561 | |
2519 | void noinline |
3562 | void noinline |
2520 | ev_io_stop (EV_P_ ev_io *w) |
3563 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2521 | { |
3564 | { |
2522 | clear_pending (EV_A_ (W)w); |
3565 | clear_pending (EV_A_ (W)w); |
2523 | if (expect_false (!ev_is_active (w))) |
3566 | if (expect_false (!ev_is_active (w))) |
2524 | return; |
3567 | return; |
2525 | |
3568 | |
… | |
… | |
2528 | EV_FREQUENT_CHECK; |
3571 | EV_FREQUENT_CHECK; |
2529 | |
3572 | |
2530 | wlist_del (&anfds[w->fd].head, (WL)w); |
3573 | wlist_del (&anfds[w->fd].head, (WL)w); |
2531 | ev_stop (EV_A_ (W)w); |
3574 | ev_stop (EV_A_ (W)w); |
2532 | |
3575 | |
2533 | fd_change (EV_A_ w->fd, 1); |
3576 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2534 | |
3577 | |
2535 | EV_FREQUENT_CHECK; |
3578 | EV_FREQUENT_CHECK; |
2536 | } |
3579 | } |
2537 | |
3580 | |
2538 | void noinline |
3581 | void noinline |
2539 | ev_timer_start (EV_P_ ev_timer *w) |
3582 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2540 | { |
3583 | { |
2541 | if (expect_false (ev_is_active (w))) |
3584 | if (expect_false (ev_is_active (w))) |
2542 | return; |
3585 | return; |
2543 | |
3586 | |
2544 | ev_at (w) += mn_now; |
3587 | ev_at (w) += mn_now; |
… | |
… | |
2558 | |
3601 | |
2559 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3602 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2560 | } |
3603 | } |
2561 | |
3604 | |
2562 | void noinline |
3605 | void noinline |
2563 | ev_timer_stop (EV_P_ ev_timer *w) |
3606 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2564 | { |
3607 | { |
2565 | clear_pending (EV_A_ (W)w); |
3608 | clear_pending (EV_A_ (W)w); |
2566 | if (expect_false (!ev_is_active (w))) |
3609 | if (expect_false (!ev_is_active (w))) |
2567 | return; |
3610 | return; |
2568 | |
3611 | |
… | |
… | |
2580 | timers [active] = timers [timercnt + HEAP0]; |
3623 | timers [active] = timers [timercnt + HEAP0]; |
2581 | adjustheap (timers, timercnt, active); |
3624 | adjustheap (timers, timercnt, active); |
2582 | } |
3625 | } |
2583 | } |
3626 | } |
2584 | |
3627 | |
2585 | EV_FREQUENT_CHECK; |
|
|
2586 | |
|
|
2587 | ev_at (w) -= mn_now; |
3628 | ev_at (w) -= mn_now; |
2588 | |
3629 | |
2589 | ev_stop (EV_A_ (W)w); |
3630 | ev_stop (EV_A_ (W)w); |
|
|
3631 | |
|
|
3632 | EV_FREQUENT_CHECK; |
2590 | } |
3633 | } |
2591 | |
3634 | |
2592 | void noinline |
3635 | void noinline |
2593 | ev_timer_again (EV_P_ ev_timer *w) |
3636 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2594 | { |
3637 | { |
2595 | EV_FREQUENT_CHECK; |
3638 | EV_FREQUENT_CHECK; |
|
|
3639 | |
|
|
3640 | clear_pending (EV_A_ (W)w); |
2596 | |
3641 | |
2597 | if (ev_is_active (w)) |
3642 | if (ev_is_active (w)) |
2598 | { |
3643 | { |
2599 | if (w->repeat) |
3644 | if (w->repeat) |
2600 | { |
3645 | { |
… | |
… | |
2613 | |
3658 | |
2614 | EV_FREQUENT_CHECK; |
3659 | EV_FREQUENT_CHECK; |
2615 | } |
3660 | } |
2616 | |
3661 | |
2617 | ev_tstamp |
3662 | ev_tstamp |
2618 | ev_timer_remaining (EV_P_ ev_timer *w) |
3663 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2619 | { |
3664 | { |
2620 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3665 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2621 | } |
3666 | } |
2622 | |
3667 | |
2623 | #if EV_PERIODIC_ENABLE |
3668 | #if EV_PERIODIC_ENABLE |
2624 | void noinline |
3669 | void noinline |
2625 | ev_periodic_start (EV_P_ ev_periodic *w) |
3670 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2626 | { |
3671 | { |
2627 | if (expect_false (ev_is_active (w))) |
3672 | if (expect_false (ev_is_active (w))) |
2628 | return; |
3673 | return; |
2629 | |
3674 | |
2630 | if (w->reschedule_cb) |
3675 | if (w->reschedule_cb) |
2631 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3676 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2632 | else if (w->interval) |
3677 | else if (w->interval) |
2633 | { |
3678 | { |
2634 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3679 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2635 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3680 | periodic_recalc (EV_A_ w); |
2636 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2637 | } |
3681 | } |
2638 | else |
3682 | else |
2639 | ev_at (w) = w->offset; |
3683 | ev_at (w) = w->offset; |
2640 | |
3684 | |
2641 | EV_FREQUENT_CHECK; |
3685 | EV_FREQUENT_CHECK; |
… | |
… | |
2651 | |
3695 | |
2652 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3696 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2653 | } |
3697 | } |
2654 | |
3698 | |
2655 | void noinline |
3699 | void noinline |
2656 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3700 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2657 | { |
3701 | { |
2658 | clear_pending (EV_A_ (W)w); |
3702 | clear_pending (EV_A_ (W)w); |
2659 | if (expect_false (!ev_is_active (w))) |
3703 | if (expect_false (!ev_is_active (w))) |
2660 | return; |
3704 | return; |
2661 | |
3705 | |
… | |
… | |
2673 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3717 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2674 | adjustheap (periodics, periodiccnt, active); |
3718 | adjustheap (periodics, periodiccnt, active); |
2675 | } |
3719 | } |
2676 | } |
3720 | } |
2677 | |
3721 | |
2678 | EV_FREQUENT_CHECK; |
|
|
2679 | |
|
|
2680 | ev_stop (EV_A_ (W)w); |
3722 | ev_stop (EV_A_ (W)w); |
|
|
3723 | |
|
|
3724 | EV_FREQUENT_CHECK; |
2681 | } |
3725 | } |
2682 | |
3726 | |
2683 | void noinline |
3727 | void noinline |
2684 | ev_periodic_again (EV_P_ ev_periodic *w) |
3728 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2685 | { |
3729 | { |
2686 | /* TODO: use adjustheap and recalculation */ |
3730 | /* TODO: use adjustheap and recalculation */ |
2687 | ev_periodic_stop (EV_A_ w); |
3731 | ev_periodic_stop (EV_A_ w); |
2688 | ev_periodic_start (EV_A_ w); |
3732 | ev_periodic_start (EV_A_ w); |
2689 | } |
3733 | } |
… | |
… | |
2691 | |
3735 | |
2692 | #ifndef SA_RESTART |
3736 | #ifndef SA_RESTART |
2693 | # define SA_RESTART 0 |
3737 | # define SA_RESTART 0 |
2694 | #endif |
3738 | #endif |
2695 | |
3739 | |
|
|
3740 | #if EV_SIGNAL_ENABLE |
|
|
3741 | |
2696 | void noinline |
3742 | void noinline |
2697 | ev_signal_start (EV_P_ ev_signal *w) |
3743 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2698 | { |
3744 | { |
2699 | if (expect_false (ev_is_active (w))) |
3745 | if (expect_false (ev_is_active (w))) |
2700 | return; |
3746 | return; |
2701 | |
3747 | |
2702 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3748 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2704 | #if EV_MULTIPLICITY |
3750 | #if EV_MULTIPLICITY |
2705 | assert (("libev: a signal must not be attached to two different loops", |
3751 | assert (("libev: a signal must not be attached to two different loops", |
2706 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3752 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2707 | |
3753 | |
2708 | signals [w->signum - 1].loop = EV_A; |
3754 | signals [w->signum - 1].loop = EV_A; |
|
|
3755 | ECB_MEMORY_FENCE_RELEASE; |
2709 | #endif |
3756 | #endif |
2710 | |
3757 | |
2711 | EV_FREQUENT_CHECK; |
3758 | EV_FREQUENT_CHECK; |
2712 | |
3759 | |
2713 | #if EV_USE_SIGNALFD |
3760 | #if EV_USE_SIGNALFD |
… | |
… | |
2746 | if (!((WL)w)->next) |
3793 | if (!((WL)w)->next) |
2747 | # if EV_USE_SIGNALFD |
3794 | # if EV_USE_SIGNALFD |
2748 | if (sigfd < 0) /*TODO*/ |
3795 | if (sigfd < 0) /*TODO*/ |
2749 | # endif |
3796 | # endif |
2750 | { |
3797 | { |
2751 | # if _WIN32 |
3798 | # ifdef _WIN32 |
2752 | evpipe_init (EV_A); |
3799 | evpipe_init (EV_A); |
2753 | |
3800 | |
2754 | signal (w->signum, ev_sighandler); |
3801 | signal (w->signum, ev_sighandler); |
2755 | # else |
3802 | # else |
2756 | struct sigaction sa; |
3803 | struct sigaction sa; |
… | |
… | |
2760 | sa.sa_handler = ev_sighandler; |
3807 | sa.sa_handler = ev_sighandler; |
2761 | sigfillset (&sa.sa_mask); |
3808 | sigfillset (&sa.sa_mask); |
2762 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3809 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2763 | sigaction (w->signum, &sa, 0); |
3810 | sigaction (w->signum, &sa, 0); |
2764 | |
3811 | |
|
|
3812 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3813 | { |
2765 | sigemptyset (&sa.sa_mask); |
3814 | sigemptyset (&sa.sa_mask); |
2766 | sigaddset (&sa.sa_mask, w->signum); |
3815 | sigaddset (&sa.sa_mask, w->signum); |
2767 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
3816 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3817 | } |
2768 | #endif |
3818 | #endif |
2769 | } |
3819 | } |
2770 | |
3820 | |
2771 | EV_FREQUENT_CHECK; |
3821 | EV_FREQUENT_CHECK; |
2772 | } |
3822 | } |
2773 | |
3823 | |
2774 | void noinline |
3824 | void noinline |
2775 | ev_signal_stop (EV_P_ ev_signal *w) |
3825 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2776 | { |
3826 | { |
2777 | clear_pending (EV_A_ (W)w); |
3827 | clear_pending (EV_A_ (W)w); |
2778 | if (expect_false (!ev_is_active (w))) |
3828 | if (expect_false (!ev_is_active (w))) |
2779 | return; |
3829 | return; |
2780 | |
3830 | |
… | |
… | |
2789 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
3839 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2790 | #endif |
3840 | #endif |
2791 | #if EV_USE_SIGNALFD |
3841 | #if EV_USE_SIGNALFD |
2792 | if (sigfd >= 0) |
3842 | if (sigfd >= 0) |
2793 | { |
3843 | { |
2794 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
3844 | sigset_t ss; |
|
|
3845 | |
|
|
3846 | sigemptyset (&ss); |
|
|
3847 | sigaddset (&ss, w->signum); |
2795 | sigdelset (&sigfd_set, w->signum); |
3848 | sigdelset (&sigfd_set, w->signum); |
|
|
3849 | |
2796 | signalfd (sigfd, &sigfd_set, 0); |
3850 | signalfd (sigfd, &sigfd_set, 0); |
2797 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
3851 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2798 | /*TODO: maybe unblock signal? */ |
|
|
2799 | } |
3852 | } |
2800 | else |
3853 | else |
2801 | #endif |
3854 | #endif |
2802 | signal (w->signum, SIG_DFL); |
3855 | signal (w->signum, SIG_DFL); |
2803 | } |
3856 | } |
2804 | |
3857 | |
2805 | EV_FREQUENT_CHECK; |
3858 | EV_FREQUENT_CHECK; |
2806 | } |
3859 | } |
2807 | |
3860 | |
|
|
3861 | #endif |
|
|
3862 | |
|
|
3863 | #if EV_CHILD_ENABLE |
|
|
3864 | |
2808 | void |
3865 | void |
2809 | ev_child_start (EV_P_ ev_child *w) |
3866 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2810 | { |
3867 | { |
2811 | #if EV_MULTIPLICITY |
3868 | #if EV_MULTIPLICITY |
2812 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3869 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2813 | #endif |
3870 | #endif |
2814 | if (expect_false (ev_is_active (w))) |
3871 | if (expect_false (ev_is_active (w))) |
2815 | return; |
3872 | return; |
2816 | |
3873 | |
2817 | EV_FREQUENT_CHECK; |
3874 | EV_FREQUENT_CHECK; |
2818 | |
3875 | |
2819 | ev_start (EV_A_ (W)w, 1); |
3876 | ev_start (EV_A_ (W)w, 1); |
2820 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3877 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2821 | |
3878 | |
2822 | EV_FREQUENT_CHECK; |
3879 | EV_FREQUENT_CHECK; |
2823 | } |
3880 | } |
2824 | |
3881 | |
2825 | void |
3882 | void |
2826 | ev_child_stop (EV_P_ ev_child *w) |
3883 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2827 | { |
3884 | { |
2828 | clear_pending (EV_A_ (W)w); |
3885 | clear_pending (EV_A_ (W)w); |
2829 | if (expect_false (!ev_is_active (w))) |
3886 | if (expect_false (!ev_is_active (w))) |
2830 | return; |
3887 | return; |
2831 | |
3888 | |
2832 | EV_FREQUENT_CHECK; |
3889 | EV_FREQUENT_CHECK; |
2833 | |
3890 | |
2834 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3891 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2835 | ev_stop (EV_A_ (W)w); |
3892 | ev_stop (EV_A_ (W)w); |
2836 | |
3893 | |
2837 | EV_FREQUENT_CHECK; |
3894 | EV_FREQUENT_CHECK; |
2838 | } |
3895 | } |
|
|
3896 | |
|
|
3897 | #endif |
2839 | |
3898 | |
2840 | #if EV_STAT_ENABLE |
3899 | #if EV_STAT_ENABLE |
2841 | |
3900 | |
2842 | # ifdef _WIN32 |
3901 | # ifdef _WIN32 |
2843 | # undef lstat |
3902 | # undef lstat |
… | |
… | |
2849 | #define MIN_STAT_INTERVAL 0.1074891 |
3908 | #define MIN_STAT_INTERVAL 0.1074891 |
2850 | |
3909 | |
2851 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3910 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2852 | |
3911 | |
2853 | #if EV_USE_INOTIFY |
3912 | #if EV_USE_INOTIFY |
2854 | # define EV_INOTIFY_BUFSIZE 8192 |
3913 | |
|
|
3914 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3915 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2855 | |
3916 | |
2856 | static void noinline |
3917 | static void noinline |
2857 | infy_add (EV_P_ ev_stat *w) |
3918 | infy_add (EV_P_ ev_stat *w) |
2858 | { |
3919 | { |
2859 | 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); |
3920 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3921 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3922 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3923 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2860 | |
3924 | |
2861 | if (w->wd < 0) |
3925 | if (w->wd >= 0) |
|
|
3926 | { |
|
|
3927 | struct statfs sfs; |
|
|
3928 | |
|
|
3929 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3930 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3931 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3932 | |
|
|
3933 | if (!fs_2625) |
|
|
3934 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3935 | else if (!statfs (w->path, &sfs) |
|
|
3936 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3937 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3938 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
3939 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3940 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3941 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3942 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
3943 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3944 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
3945 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3946 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
3947 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3948 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3949 | else |
|
|
3950 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2862 | { |
3951 | } |
|
|
3952 | else |
|
|
3953 | { |
|
|
3954 | /* can't use inotify, continue to stat */ |
2863 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3955 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2864 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2865 | |
3956 | |
2866 | /* monitor some parent directory for speedup hints */ |
3957 | /* if path is not there, monitor some parent directory for speedup hints */ |
2867 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3958 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2868 | /* but an efficiency issue only */ |
3959 | /* but an efficiency issue only */ |
2869 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3960 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2870 | { |
3961 | { |
2871 | char path [4096]; |
3962 | char path [4096]; |
… | |
… | |
2881 | if (!pend || pend == path) |
3972 | if (!pend || pend == path) |
2882 | break; |
3973 | break; |
2883 | |
3974 | |
2884 | *pend = 0; |
3975 | *pend = 0; |
2885 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3976 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2886 | } |
3977 | } |
2887 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3978 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2888 | } |
3979 | } |
2889 | } |
3980 | } |
2890 | |
3981 | |
2891 | if (w->wd >= 0) |
3982 | if (w->wd >= 0) |
2892 | { |
|
|
2893 | struct statfs sfs; |
|
|
2894 | |
|
|
2895 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3983 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2896 | |
3984 | |
2897 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3985 | /* now re-arm timer, if required */ |
2898 | /* unless the filesystem is known to be local, we therefore still poll */ |
3986 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2899 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2900 | |
|
|
2901 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2902 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2903 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2904 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2905 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2906 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2907 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2908 | return; |
|
|
2909 | |
|
|
2910 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2911 | ev_timer_again (EV_A_ &w->timer); |
3987 | ev_timer_again (EV_A_ &w->timer); |
2912 | } |
3988 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2913 | } |
3989 | } |
2914 | |
3990 | |
2915 | static void noinline |
3991 | static void noinline |
2916 | infy_del (EV_P_ ev_stat *w) |
3992 | infy_del (EV_P_ ev_stat *w) |
2917 | { |
3993 | { |
… | |
… | |
2920 | |
3996 | |
2921 | if (wd < 0) |
3997 | if (wd < 0) |
2922 | return; |
3998 | return; |
2923 | |
3999 | |
2924 | w->wd = -2; |
4000 | w->wd = -2; |
2925 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4001 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2926 | wlist_del (&fs_hash [slot].head, (WL)w); |
4002 | wlist_del (&fs_hash [slot].head, (WL)w); |
2927 | |
4003 | |
2928 | /* remove this watcher, if others are watching it, they will rearm */ |
4004 | /* remove this watcher, if others are watching it, they will rearm */ |
2929 | inotify_rm_watch (fs_fd, wd); |
4005 | inotify_rm_watch (fs_fd, wd); |
2930 | } |
4006 | } |
… | |
… | |
2932 | static void noinline |
4008 | static void noinline |
2933 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4009 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2934 | { |
4010 | { |
2935 | if (slot < 0) |
4011 | if (slot < 0) |
2936 | /* overflow, need to check for all hash slots */ |
4012 | /* overflow, need to check for all hash slots */ |
2937 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4013 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2938 | infy_wd (EV_A_ slot, wd, ev); |
4014 | infy_wd (EV_A_ slot, wd, ev); |
2939 | else |
4015 | else |
2940 | { |
4016 | { |
2941 | WL w_; |
4017 | WL w_; |
2942 | |
4018 | |
2943 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4019 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2944 | { |
4020 | { |
2945 | ev_stat *w = (ev_stat *)w_; |
4021 | ev_stat *w = (ev_stat *)w_; |
2946 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4022 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2947 | |
4023 | |
2948 | if (w->wd == wd || wd == -1) |
4024 | if (w->wd == wd || wd == -1) |
2949 | { |
4025 | { |
2950 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4026 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2951 | { |
4027 | { |
2952 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4028 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2953 | w->wd = -1; |
4029 | w->wd = -1; |
2954 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4030 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2955 | } |
4031 | } |
2956 | |
4032 | |
2957 | stat_timer_cb (EV_A_ &w->timer, 0); |
4033 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2962 | |
4038 | |
2963 | static void |
4039 | static void |
2964 | infy_cb (EV_P_ ev_io *w, int revents) |
4040 | infy_cb (EV_P_ ev_io *w, int revents) |
2965 | { |
4041 | { |
2966 | char buf [EV_INOTIFY_BUFSIZE]; |
4042 | char buf [EV_INOTIFY_BUFSIZE]; |
2967 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2968 | int ofs; |
4043 | int ofs; |
2969 | int len = read (fs_fd, buf, sizeof (buf)); |
4044 | int len = read (fs_fd, buf, sizeof (buf)); |
2970 | |
4045 | |
2971 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4046 | for (ofs = 0; ofs < len; ) |
|
|
4047 | { |
|
|
4048 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2972 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4049 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4050 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4051 | } |
2973 | } |
4052 | } |
2974 | |
4053 | |
2975 | inline_size void |
4054 | inline_size void ecb_cold |
2976 | check_2625 (EV_P) |
4055 | ev_check_2625 (EV_P) |
2977 | { |
4056 | { |
2978 | /* kernels < 2.6.25 are borked |
4057 | /* kernels < 2.6.25 are borked |
2979 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4058 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2980 | */ |
4059 | */ |
2981 | struct utsname buf; |
4060 | if (ev_linux_version () < 0x020619) |
2982 | int major, minor, micro; |
|
|
2983 | |
|
|
2984 | if (uname (&buf)) |
|
|
2985 | return; |
|
|
2986 | |
|
|
2987 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2988 | return; |
|
|
2989 | |
|
|
2990 | if (major < 2 |
|
|
2991 | || (major == 2 && minor < 6) |
|
|
2992 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2993 | return; |
4061 | return; |
2994 | |
4062 | |
2995 | fs_2625 = 1; |
4063 | fs_2625 = 1; |
2996 | } |
4064 | } |
2997 | |
4065 | |
2998 | inline_size int |
4066 | inline_size int |
2999 | infy_newfd (void) |
4067 | infy_newfd (void) |
3000 | { |
4068 | { |
3001 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4069 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3002 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4070 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3003 | if (fd >= 0) |
4071 | if (fd >= 0) |
3004 | return fd; |
4072 | return fd; |
3005 | #endif |
4073 | #endif |
3006 | return inotify_init (); |
4074 | return inotify_init (); |
… | |
… | |
3012 | if (fs_fd != -2) |
4080 | if (fs_fd != -2) |
3013 | return; |
4081 | return; |
3014 | |
4082 | |
3015 | fs_fd = -1; |
4083 | fs_fd = -1; |
3016 | |
4084 | |
3017 | check_2625 (EV_A); |
4085 | ev_check_2625 (EV_A); |
3018 | |
4086 | |
3019 | fs_fd = infy_newfd (); |
4087 | fs_fd = infy_newfd (); |
3020 | |
4088 | |
3021 | if (fs_fd >= 0) |
4089 | if (fs_fd >= 0) |
3022 | { |
4090 | { |
… | |
… | |
3047 | ev_io_set (&fs_w, fs_fd, EV_READ); |
4115 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3048 | ev_io_start (EV_A_ &fs_w); |
4116 | ev_io_start (EV_A_ &fs_w); |
3049 | ev_unref (EV_A); |
4117 | ev_unref (EV_A); |
3050 | } |
4118 | } |
3051 | |
4119 | |
3052 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4120 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3053 | { |
4121 | { |
3054 | WL w_ = fs_hash [slot].head; |
4122 | WL w_ = fs_hash [slot].head; |
3055 | fs_hash [slot].head = 0; |
4123 | fs_hash [slot].head = 0; |
3056 | |
4124 | |
3057 | while (w_) |
4125 | while (w_) |
… | |
… | |
3062 | w->wd = -1; |
4130 | w->wd = -1; |
3063 | |
4131 | |
3064 | if (fs_fd >= 0) |
4132 | if (fs_fd >= 0) |
3065 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4133 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3066 | else |
4134 | else |
|
|
4135 | { |
|
|
4136 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4137 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3067 | ev_timer_again (EV_A_ &w->timer); |
4138 | ev_timer_again (EV_A_ &w->timer); |
|
|
4139 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4140 | } |
3068 | } |
4141 | } |
3069 | } |
4142 | } |
3070 | } |
4143 | } |
3071 | |
4144 | |
3072 | #endif |
4145 | #endif |
… | |
… | |
3076 | #else |
4149 | #else |
3077 | # define EV_LSTAT(p,b) lstat (p, b) |
4150 | # define EV_LSTAT(p,b) lstat (p, b) |
3078 | #endif |
4151 | #endif |
3079 | |
4152 | |
3080 | void |
4153 | void |
3081 | ev_stat_stat (EV_P_ ev_stat *w) |
4154 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3082 | { |
4155 | { |
3083 | if (lstat (w->path, &w->attr) < 0) |
4156 | if (lstat (w->path, &w->attr) < 0) |
3084 | w->attr.st_nlink = 0; |
4157 | w->attr.st_nlink = 0; |
3085 | else if (!w->attr.st_nlink) |
4158 | else if (!w->attr.st_nlink) |
3086 | w->attr.st_nlink = 1; |
4159 | w->attr.st_nlink = 1; |
… | |
… | |
3089 | static void noinline |
4162 | static void noinline |
3090 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4163 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3091 | { |
4164 | { |
3092 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4165 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3093 | |
4166 | |
3094 | /* we copy this here each the time so that */ |
4167 | ev_statdata prev = w->attr; |
3095 | /* prev has the old value when the callback gets invoked */ |
|
|
3096 | w->prev = w->attr; |
|
|
3097 | ev_stat_stat (EV_A_ w); |
4168 | ev_stat_stat (EV_A_ w); |
3098 | |
4169 | |
3099 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4170 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3100 | if ( |
4171 | if ( |
3101 | w->prev.st_dev != w->attr.st_dev |
4172 | prev.st_dev != w->attr.st_dev |
3102 | || w->prev.st_ino != w->attr.st_ino |
4173 | || prev.st_ino != w->attr.st_ino |
3103 | || w->prev.st_mode != w->attr.st_mode |
4174 | || prev.st_mode != w->attr.st_mode |
3104 | || w->prev.st_nlink != w->attr.st_nlink |
4175 | || prev.st_nlink != w->attr.st_nlink |
3105 | || w->prev.st_uid != w->attr.st_uid |
4176 | || prev.st_uid != w->attr.st_uid |
3106 | || w->prev.st_gid != w->attr.st_gid |
4177 | || prev.st_gid != w->attr.st_gid |
3107 | || w->prev.st_rdev != w->attr.st_rdev |
4178 | || prev.st_rdev != w->attr.st_rdev |
3108 | || w->prev.st_size != w->attr.st_size |
4179 | || prev.st_size != w->attr.st_size |
3109 | || w->prev.st_atime != w->attr.st_atime |
4180 | || prev.st_atime != w->attr.st_atime |
3110 | || w->prev.st_mtime != w->attr.st_mtime |
4181 | || prev.st_mtime != w->attr.st_mtime |
3111 | || w->prev.st_ctime != w->attr.st_ctime |
4182 | || prev.st_ctime != w->attr.st_ctime |
3112 | ) { |
4183 | ) { |
|
|
4184 | /* we only update w->prev on actual differences */ |
|
|
4185 | /* in case we test more often than invoke the callback, */ |
|
|
4186 | /* to ensure that prev is always different to attr */ |
|
|
4187 | w->prev = prev; |
|
|
4188 | |
3113 | #if EV_USE_INOTIFY |
4189 | #if EV_USE_INOTIFY |
3114 | if (fs_fd >= 0) |
4190 | if (fs_fd >= 0) |
3115 | { |
4191 | { |
3116 | infy_del (EV_A_ w); |
4192 | infy_del (EV_A_ w); |
3117 | infy_add (EV_A_ w); |
4193 | infy_add (EV_A_ w); |
… | |
… | |
3122 | ev_feed_event (EV_A_ w, EV_STAT); |
4198 | ev_feed_event (EV_A_ w, EV_STAT); |
3123 | } |
4199 | } |
3124 | } |
4200 | } |
3125 | |
4201 | |
3126 | void |
4202 | void |
3127 | ev_stat_start (EV_P_ ev_stat *w) |
4203 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3128 | { |
4204 | { |
3129 | if (expect_false (ev_is_active (w))) |
4205 | if (expect_false (ev_is_active (w))) |
3130 | return; |
4206 | return; |
3131 | |
4207 | |
3132 | ev_stat_stat (EV_A_ w); |
4208 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3142 | |
4218 | |
3143 | if (fs_fd >= 0) |
4219 | if (fs_fd >= 0) |
3144 | infy_add (EV_A_ w); |
4220 | infy_add (EV_A_ w); |
3145 | else |
4221 | else |
3146 | #endif |
4222 | #endif |
|
|
4223 | { |
3147 | ev_timer_again (EV_A_ &w->timer); |
4224 | ev_timer_again (EV_A_ &w->timer); |
|
|
4225 | ev_unref (EV_A); |
|
|
4226 | } |
3148 | |
4227 | |
3149 | ev_start (EV_A_ (W)w, 1); |
4228 | ev_start (EV_A_ (W)w, 1); |
3150 | |
4229 | |
3151 | EV_FREQUENT_CHECK; |
4230 | EV_FREQUENT_CHECK; |
3152 | } |
4231 | } |
3153 | |
4232 | |
3154 | void |
4233 | void |
3155 | ev_stat_stop (EV_P_ ev_stat *w) |
4234 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3156 | { |
4235 | { |
3157 | clear_pending (EV_A_ (W)w); |
4236 | clear_pending (EV_A_ (W)w); |
3158 | if (expect_false (!ev_is_active (w))) |
4237 | if (expect_false (!ev_is_active (w))) |
3159 | return; |
4238 | return; |
3160 | |
4239 | |
3161 | EV_FREQUENT_CHECK; |
4240 | EV_FREQUENT_CHECK; |
3162 | |
4241 | |
3163 | #if EV_USE_INOTIFY |
4242 | #if EV_USE_INOTIFY |
3164 | infy_del (EV_A_ w); |
4243 | infy_del (EV_A_ w); |
3165 | #endif |
4244 | #endif |
|
|
4245 | |
|
|
4246 | if (ev_is_active (&w->timer)) |
|
|
4247 | { |
|
|
4248 | ev_ref (EV_A); |
3166 | ev_timer_stop (EV_A_ &w->timer); |
4249 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4250 | } |
3167 | |
4251 | |
3168 | ev_stop (EV_A_ (W)w); |
4252 | ev_stop (EV_A_ (W)w); |
3169 | |
4253 | |
3170 | EV_FREQUENT_CHECK; |
4254 | EV_FREQUENT_CHECK; |
3171 | } |
4255 | } |
3172 | #endif |
4256 | #endif |
3173 | |
4257 | |
3174 | #if EV_IDLE_ENABLE |
4258 | #if EV_IDLE_ENABLE |
3175 | void |
4259 | void |
3176 | ev_idle_start (EV_P_ ev_idle *w) |
4260 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3177 | { |
4261 | { |
3178 | if (expect_false (ev_is_active (w))) |
4262 | if (expect_false (ev_is_active (w))) |
3179 | return; |
4263 | return; |
3180 | |
4264 | |
3181 | pri_adjust (EV_A_ (W)w); |
4265 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3194 | |
4278 | |
3195 | EV_FREQUENT_CHECK; |
4279 | EV_FREQUENT_CHECK; |
3196 | } |
4280 | } |
3197 | |
4281 | |
3198 | void |
4282 | void |
3199 | ev_idle_stop (EV_P_ ev_idle *w) |
4283 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3200 | { |
4284 | { |
3201 | clear_pending (EV_A_ (W)w); |
4285 | clear_pending (EV_A_ (W)w); |
3202 | if (expect_false (!ev_is_active (w))) |
4286 | if (expect_false (!ev_is_active (w))) |
3203 | return; |
4287 | return; |
3204 | |
4288 | |
… | |
… | |
3216 | |
4300 | |
3217 | EV_FREQUENT_CHECK; |
4301 | EV_FREQUENT_CHECK; |
3218 | } |
4302 | } |
3219 | #endif |
4303 | #endif |
3220 | |
4304 | |
|
|
4305 | #if EV_PREPARE_ENABLE |
3221 | void |
4306 | void |
3222 | ev_prepare_start (EV_P_ ev_prepare *w) |
4307 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3223 | { |
4308 | { |
3224 | if (expect_false (ev_is_active (w))) |
4309 | if (expect_false (ev_is_active (w))) |
3225 | return; |
4310 | return; |
3226 | |
4311 | |
3227 | EV_FREQUENT_CHECK; |
4312 | EV_FREQUENT_CHECK; |
… | |
… | |
3232 | |
4317 | |
3233 | EV_FREQUENT_CHECK; |
4318 | EV_FREQUENT_CHECK; |
3234 | } |
4319 | } |
3235 | |
4320 | |
3236 | void |
4321 | void |
3237 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4322 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3238 | { |
4323 | { |
3239 | clear_pending (EV_A_ (W)w); |
4324 | clear_pending (EV_A_ (W)w); |
3240 | if (expect_false (!ev_is_active (w))) |
4325 | if (expect_false (!ev_is_active (w))) |
3241 | return; |
4326 | return; |
3242 | |
4327 | |
… | |
… | |
3251 | |
4336 | |
3252 | ev_stop (EV_A_ (W)w); |
4337 | ev_stop (EV_A_ (W)w); |
3253 | |
4338 | |
3254 | EV_FREQUENT_CHECK; |
4339 | EV_FREQUENT_CHECK; |
3255 | } |
4340 | } |
|
|
4341 | #endif |
3256 | |
4342 | |
|
|
4343 | #if EV_CHECK_ENABLE |
3257 | void |
4344 | void |
3258 | ev_check_start (EV_P_ ev_check *w) |
4345 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3259 | { |
4346 | { |
3260 | if (expect_false (ev_is_active (w))) |
4347 | if (expect_false (ev_is_active (w))) |
3261 | return; |
4348 | return; |
3262 | |
4349 | |
3263 | EV_FREQUENT_CHECK; |
4350 | EV_FREQUENT_CHECK; |
… | |
… | |
3268 | |
4355 | |
3269 | EV_FREQUENT_CHECK; |
4356 | EV_FREQUENT_CHECK; |
3270 | } |
4357 | } |
3271 | |
4358 | |
3272 | void |
4359 | void |
3273 | ev_check_stop (EV_P_ ev_check *w) |
4360 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3274 | { |
4361 | { |
3275 | clear_pending (EV_A_ (W)w); |
4362 | clear_pending (EV_A_ (W)w); |
3276 | if (expect_false (!ev_is_active (w))) |
4363 | if (expect_false (!ev_is_active (w))) |
3277 | return; |
4364 | return; |
3278 | |
4365 | |
… | |
… | |
3287 | |
4374 | |
3288 | ev_stop (EV_A_ (W)w); |
4375 | ev_stop (EV_A_ (W)w); |
3289 | |
4376 | |
3290 | EV_FREQUENT_CHECK; |
4377 | EV_FREQUENT_CHECK; |
3291 | } |
4378 | } |
|
|
4379 | #endif |
3292 | |
4380 | |
3293 | #if EV_EMBED_ENABLE |
4381 | #if EV_EMBED_ENABLE |
3294 | void noinline |
4382 | void noinline |
3295 | ev_embed_sweep (EV_P_ ev_embed *w) |
4383 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3296 | { |
4384 | { |
3297 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4385 | ev_run (w->other, EVRUN_NOWAIT); |
3298 | } |
4386 | } |
3299 | |
4387 | |
3300 | static void |
4388 | static void |
3301 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4389 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3302 | { |
4390 | { |
3303 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4391 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3304 | |
4392 | |
3305 | if (ev_cb (w)) |
4393 | if (ev_cb (w)) |
3306 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4394 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3307 | else |
4395 | else |
3308 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4396 | ev_run (w->other, EVRUN_NOWAIT); |
3309 | } |
4397 | } |
3310 | |
4398 | |
3311 | static void |
4399 | static void |
3312 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4400 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3313 | { |
4401 | { |
… | |
… | |
3317 | EV_P = w->other; |
4405 | EV_P = w->other; |
3318 | |
4406 | |
3319 | while (fdchangecnt) |
4407 | while (fdchangecnt) |
3320 | { |
4408 | { |
3321 | fd_reify (EV_A); |
4409 | fd_reify (EV_A); |
3322 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4410 | ev_run (EV_A_ EVRUN_NOWAIT); |
3323 | } |
4411 | } |
3324 | } |
4412 | } |
3325 | } |
4413 | } |
3326 | |
4414 | |
3327 | static void |
4415 | static void |
… | |
… | |
3333 | |
4421 | |
3334 | { |
4422 | { |
3335 | EV_P = w->other; |
4423 | EV_P = w->other; |
3336 | |
4424 | |
3337 | ev_loop_fork (EV_A); |
4425 | ev_loop_fork (EV_A); |
3338 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4426 | ev_run (EV_A_ EVRUN_NOWAIT); |
3339 | } |
4427 | } |
3340 | |
4428 | |
3341 | ev_embed_start (EV_A_ w); |
4429 | ev_embed_start (EV_A_ w); |
3342 | } |
4430 | } |
3343 | |
4431 | |
… | |
… | |
3348 | ev_idle_stop (EV_A_ idle); |
4436 | ev_idle_stop (EV_A_ idle); |
3349 | } |
4437 | } |
3350 | #endif |
4438 | #endif |
3351 | |
4439 | |
3352 | void |
4440 | void |
3353 | ev_embed_start (EV_P_ ev_embed *w) |
4441 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3354 | { |
4442 | { |
3355 | if (expect_false (ev_is_active (w))) |
4443 | if (expect_false (ev_is_active (w))) |
3356 | return; |
4444 | return; |
3357 | |
4445 | |
3358 | { |
4446 | { |
… | |
… | |
3379 | |
4467 | |
3380 | EV_FREQUENT_CHECK; |
4468 | EV_FREQUENT_CHECK; |
3381 | } |
4469 | } |
3382 | |
4470 | |
3383 | void |
4471 | void |
3384 | ev_embed_stop (EV_P_ ev_embed *w) |
4472 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3385 | { |
4473 | { |
3386 | clear_pending (EV_A_ (W)w); |
4474 | clear_pending (EV_A_ (W)w); |
3387 | if (expect_false (!ev_is_active (w))) |
4475 | if (expect_false (!ev_is_active (w))) |
3388 | return; |
4476 | return; |
3389 | |
4477 | |
… | |
… | |
3391 | |
4479 | |
3392 | ev_io_stop (EV_A_ &w->io); |
4480 | ev_io_stop (EV_A_ &w->io); |
3393 | ev_prepare_stop (EV_A_ &w->prepare); |
4481 | ev_prepare_stop (EV_A_ &w->prepare); |
3394 | ev_fork_stop (EV_A_ &w->fork); |
4482 | ev_fork_stop (EV_A_ &w->fork); |
3395 | |
4483 | |
|
|
4484 | ev_stop (EV_A_ (W)w); |
|
|
4485 | |
3396 | EV_FREQUENT_CHECK; |
4486 | EV_FREQUENT_CHECK; |
3397 | } |
4487 | } |
3398 | #endif |
4488 | #endif |
3399 | |
4489 | |
3400 | #if EV_FORK_ENABLE |
4490 | #if EV_FORK_ENABLE |
3401 | void |
4491 | void |
3402 | ev_fork_start (EV_P_ ev_fork *w) |
4492 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3403 | { |
4493 | { |
3404 | if (expect_false (ev_is_active (w))) |
4494 | if (expect_false (ev_is_active (w))) |
3405 | return; |
4495 | return; |
3406 | |
4496 | |
3407 | EV_FREQUENT_CHECK; |
4497 | EV_FREQUENT_CHECK; |
… | |
… | |
3412 | |
4502 | |
3413 | EV_FREQUENT_CHECK; |
4503 | EV_FREQUENT_CHECK; |
3414 | } |
4504 | } |
3415 | |
4505 | |
3416 | void |
4506 | void |
3417 | ev_fork_stop (EV_P_ ev_fork *w) |
4507 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3418 | { |
4508 | { |
3419 | clear_pending (EV_A_ (W)w); |
4509 | clear_pending (EV_A_ (W)w); |
3420 | if (expect_false (!ev_is_active (w))) |
4510 | if (expect_false (!ev_is_active (w))) |
3421 | return; |
4511 | return; |
3422 | |
4512 | |
… | |
… | |
3433 | |
4523 | |
3434 | EV_FREQUENT_CHECK; |
4524 | EV_FREQUENT_CHECK; |
3435 | } |
4525 | } |
3436 | #endif |
4526 | #endif |
3437 | |
4527 | |
|
|
4528 | #if EV_CLEANUP_ENABLE |
|
|
4529 | void |
|
|
4530 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4531 | { |
|
|
4532 | if (expect_false (ev_is_active (w))) |
|
|
4533 | return; |
|
|
4534 | |
|
|
4535 | EV_FREQUENT_CHECK; |
|
|
4536 | |
|
|
4537 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4538 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4539 | cleanups [cleanupcnt - 1] = w; |
|
|
4540 | |
|
|
4541 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4542 | ev_unref (EV_A); |
|
|
4543 | EV_FREQUENT_CHECK; |
|
|
4544 | } |
|
|
4545 | |
|
|
4546 | void |
|
|
4547 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4548 | { |
|
|
4549 | clear_pending (EV_A_ (W)w); |
|
|
4550 | if (expect_false (!ev_is_active (w))) |
|
|
4551 | return; |
|
|
4552 | |
|
|
4553 | EV_FREQUENT_CHECK; |
|
|
4554 | ev_ref (EV_A); |
|
|
4555 | |
|
|
4556 | { |
|
|
4557 | int active = ev_active (w); |
|
|
4558 | |
|
|
4559 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4560 | ev_active (cleanups [active - 1]) = active; |
|
|
4561 | } |
|
|
4562 | |
|
|
4563 | ev_stop (EV_A_ (W)w); |
|
|
4564 | |
|
|
4565 | EV_FREQUENT_CHECK; |
|
|
4566 | } |
|
|
4567 | #endif |
|
|
4568 | |
3438 | #if EV_ASYNC_ENABLE |
4569 | #if EV_ASYNC_ENABLE |
3439 | void |
4570 | void |
3440 | ev_async_start (EV_P_ ev_async *w) |
4571 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3441 | { |
4572 | { |
3442 | if (expect_false (ev_is_active (w))) |
4573 | if (expect_false (ev_is_active (w))) |
3443 | return; |
4574 | return; |
|
|
4575 | |
|
|
4576 | w->sent = 0; |
3444 | |
4577 | |
3445 | evpipe_init (EV_A); |
4578 | evpipe_init (EV_A); |
3446 | |
4579 | |
3447 | EV_FREQUENT_CHECK; |
4580 | EV_FREQUENT_CHECK; |
3448 | |
4581 | |
… | |
… | |
3452 | |
4585 | |
3453 | EV_FREQUENT_CHECK; |
4586 | EV_FREQUENT_CHECK; |
3454 | } |
4587 | } |
3455 | |
4588 | |
3456 | void |
4589 | void |
3457 | ev_async_stop (EV_P_ ev_async *w) |
4590 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3458 | { |
4591 | { |
3459 | clear_pending (EV_A_ (W)w); |
4592 | clear_pending (EV_A_ (W)w); |
3460 | if (expect_false (!ev_is_active (w))) |
4593 | if (expect_false (!ev_is_active (w))) |
3461 | return; |
4594 | return; |
3462 | |
4595 | |
… | |
… | |
3473 | |
4606 | |
3474 | EV_FREQUENT_CHECK; |
4607 | EV_FREQUENT_CHECK; |
3475 | } |
4608 | } |
3476 | |
4609 | |
3477 | void |
4610 | void |
3478 | ev_async_send (EV_P_ ev_async *w) |
4611 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3479 | { |
4612 | { |
3480 | w->sent = 1; |
4613 | w->sent = 1; |
3481 | evpipe_write (EV_A_ &async_pending); |
4614 | evpipe_write (EV_A_ &async_pending); |
3482 | } |
4615 | } |
3483 | #endif |
4616 | #endif |
… | |
… | |
3520 | |
4653 | |
3521 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4654 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3522 | } |
4655 | } |
3523 | |
4656 | |
3524 | void |
4657 | void |
3525 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4658 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3526 | { |
4659 | { |
3527 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4660 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3528 | |
4661 | |
3529 | if (expect_false (!once)) |
4662 | if (expect_false (!once)) |
3530 | { |
4663 | { |
3531 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4664 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3532 | return; |
4665 | return; |
3533 | } |
4666 | } |
3534 | |
4667 | |
3535 | once->cb = cb; |
4668 | once->cb = cb; |
3536 | once->arg = arg; |
4669 | once->arg = arg; |
… | |
… | |
3551 | } |
4684 | } |
3552 | |
4685 | |
3553 | /*****************************************************************************/ |
4686 | /*****************************************************************************/ |
3554 | |
4687 | |
3555 | #if EV_WALK_ENABLE |
4688 | #if EV_WALK_ENABLE |
3556 | void |
4689 | void ecb_cold |
3557 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4690 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3558 | { |
4691 | { |
3559 | int i, j; |
4692 | int i, j; |
3560 | ev_watcher_list *wl, *wn; |
4693 | ev_watcher_list *wl, *wn; |
3561 | |
4694 | |
3562 | if (types & (EV_IO | EV_EMBED)) |
4695 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3605 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4738 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3606 | #endif |
4739 | #endif |
3607 | |
4740 | |
3608 | #if EV_IDLE_ENABLE |
4741 | #if EV_IDLE_ENABLE |
3609 | if (types & EV_IDLE) |
4742 | if (types & EV_IDLE) |
3610 | for (j = NUMPRI; i--; ) |
4743 | for (j = NUMPRI; j--; ) |
3611 | for (i = idlecnt [j]; i--; ) |
4744 | for (i = idlecnt [j]; i--; ) |
3612 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4745 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3613 | #endif |
4746 | #endif |
3614 | |
4747 | |
3615 | #if EV_FORK_ENABLE |
4748 | #if EV_FORK_ENABLE |
… | |
… | |
3623 | if (types & EV_ASYNC) |
4756 | if (types & EV_ASYNC) |
3624 | for (i = asynccnt; i--; ) |
4757 | for (i = asynccnt; i--; ) |
3625 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
4758 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3626 | #endif |
4759 | #endif |
3627 | |
4760 | |
|
|
4761 | #if EV_PREPARE_ENABLE |
3628 | if (types & EV_PREPARE) |
4762 | if (types & EV_PREPARE) |
3629 | for (i = preparecnt; i--; ) |
4763 | for (i = preparecnt; i--; ) |
3630 | #if EV_EMBED_ENABLE |
4764 | # if EV_EMBED_ENABLE |
3631 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
4765 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3632 | #endif |
4766 | # endif |
3633 | cb (EV_A_ EV_PREPARE, prepares [i]); |
4767 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4768 | #endif |
3634 | |
4769 | |
|
|
4770 | #if EV_CHECK_ENABLE |
3635 | if (types & EV_CHECK) |
4771 | if (types & EV_CHECK) |
3636 | for (i = checkcnt; i--; ) |
4772 | for (i = checkcnt; i--; ) |
3637 | cb (EV_A_ EV_CHECK, checks [i]); |
4773 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4774 | #endif |
3638 | |
4775 | |
|
|
4776 | #if EV_SIGNAL_ENABLE |
3639 | if (types & EV_SIGNAL) |
4777 | if (types & EV_SIGNAL) |
3640 | for (i = 0; i < EV_NSIG - 1; ++i) |
4778 | for (i = 0; i < EV_NSIG - 1; ++i) |
3641 | for (wl = signals [i].head; wl; ) |
4779 | for (wl = signals [i].head; wl; ) |
3642 | { |
4780 | { |
3643 | wn = wl->next; |
4781 | wn = wl->next; |
3644 | cb (EV_A_ EV_SIGNAL, wl); |
4782 | cb (EV_A_ EV_SIGNAL, wl); |
3645 | wl = wn; |
4783 | wl = wn; |
3646 | } |
4784 | } |
|
|
4785 | #endif |
3647 | |
4786 | |
|
|
4787 | #if EV_CHILD_ENABLE |
3648 | if (types & EV_CHILD) |
4788 | if (types & EV_CHILD) |
3649 | for (i = EV_PID_HASHSIZE; i--; ) |
4789 | for (i = (EV_PID_HASHSIZE); i--; ) |
3650 | for (wl = childs [i]; wl; ) |
4790 | for (wl = childs [i]; wl; ) |
3651 | { |
4791 | { |
3652 | wn = wl->next; |
4792 | wn = wl->next; |
3653 | cb (EV_A_ EV_CHILD, wl); |
4793 | cb (EV_A_ EV_CHILD, wl); |
3654 | wl = wn; |
4794 | wl = wn; |
3655 | } |
4795 | } |
|
|
4796 | #endif |
3656 | /* EV_STAT 0x00001000 /* stat data changed */ |
4797 | /* EV_STAT 0x00001000 /* stat data changed */ |
3657 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
4798 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3658 | } |
4799 | } |
3659 | #endif |
4800 | #endif |
3660 | |
4801 | |
3661 | #if EV_MULTIPLICITY |
4802 | #if EV_MULTIPLICITY |
3662 | #include "ev_wrap.h" |
4803 | #include "ev_wrap.h" |
3663 | #endif |
4804 | #endif |
3664 | |
4805 | |
3665 | #ifdef __cplusplus |
|
|
3666 | } |
|
|
3667 | #endif |
|
|
3668 | |
|
|