1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
51 | |
47 | |
|
|
48 | # if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | # endif |
|
|
53 | |
|
|
54 | # if HAVE_CLOCK_SYSCALL |
|
|
55 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
56 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
57 | # ifndef EV_USE_REALTIME |
|
|
58 | # define EV_USE_REALTIME 0 |
|
|
59 | # endif |
|
|
60 | # ifndef EV_USE_MONOTONIC |
|
|
61 | # define EV_USE_MONOTONIC 1 |
|
|
62 | # endif |
|
|
63 | # endif |
|
|
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
66 | # endif |
|
|
67 | |
52 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
71 | # endif |
56 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
58 | # endif |
74 | # endif |
59 | # else |
75 | # else |
60 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
78 | # endif |
63 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
65 | # endif |
81 | # endif |
66 | # endif |
82 | # endif |
67 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
71 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
74 | # endif |
100 | # endif |
75 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
105 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
109 | # endif |
91 | |
110 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
95 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
98 | # endif |
118 | # endif |
99 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
100 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
106 | # endif |
127 | # endif |
107 | |
128 | |
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
111 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
114 | # endif |
136 | # endif |
115 | |
137 | |
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
121 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
122 | # endif |
145 | # endif |
123 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
124 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
125 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
|
|
154 | # endif |
|
|
155 | |
|
|
156 | # if HAVE_EVENTFD |
|
|
157 | # ifndef EV_USE_EVENTFD |
|
|
158 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_EVENTFD |
|
|
162 | # define EV_USE_EVENTFD 0 |
130 | # endif |
163 | # endif |
131 | |
164 | |
132 | #endif |
165 | #endif |
133 | |
166 | |
134 | #include <math.h> |
|
|
135 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
136 | #include <fcntl.h> |
169 | #include <fcntl.h> |
137 | #include <stddef.h> |
170 | #include <stddef.h> |
138 | |
171 | |
139 | #include <stdio.h> |
172 | #include <stdio.h> |
140 | |
173 | |
141 | #include <assert.h> |
174 | #include <assert.h> |
142 | #include <errno.h> |
175 | #include <errno.h> |
143 | #include <sys/types.h> |
176 | #include <sys/types.h> |
144 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
145 | |
179 | |
146 | #include <signal.h> |
180 | #include <signal.h> |
147 | |
181 | |
148 | #ifdef EV_H |
182 | #ifdef EV_H |
149 | # include EV_H |
183 | # include EV_H |
150 | #else |
184 | #else |
151 | # 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 |
152 | #endif |
197 | #endif |
153 | |
198 | |
154 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
200 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
157 | # include <unistd.h> |
202 | # include <unistd.h> |
158 | #else |
203 | #else |
159 | # include <io.h> |
204 | # include <io.h> |
160 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
161 | # include <windows.h> |
207 | # include <windows.h> |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
164 | # endif |
210 | # endif |
|
|
211 | # undef EV_AVOID_STDIO |
165 | #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 |
166 | |
221 | |
167 | /* 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 */ |
168 | |
223 | |
|
|
224 | /* try to deduce the maximum number of signals on this platform */ |
|
|
225 | #if defined EV_NSIG |
|
|
226 | /* use what's provided */ |
|
|
227 | #elif defined NSIG |
|
|
228 | # define EV_NSIG (NSIG) |
|
|
229 | #elif defined _NSIG |
|
|
230 | # define EV_NSIG (_NSIG) |
|
|
231 | #elif defined SIGMAX |
|
|
232 | # define EV_NSIG (SIGMAX+1) |
|
|
233 | #elif defined SIG_MAX |
|
|
234 | # define EV_NSIG (SIG_MAX+1) |
|
|
235 | #elif defined _SIG_MAX |
|
|
236 | # define EV_NSIG (_SIG_MAX+1) |
|
|
237 | #elif defined MAXSIG |
|
|
238 | # define EV_NSIG (MAXSIG+1) |
|
|
239 | #elif defined MAX_SIG |
|
|
240 | # define EV_NSIG (MAX_SIG+1) |
|
|
241 | #elif defined SIGARRAYSIZE |
|
|
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
243 | #elif defined _sys_nsig |
|
|
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
245 | #else |
|
|
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
|
|
247 | #endif |
|
|
248 | |
|
|
249 | #ifndef EV_USE_FLOOR |
|
|
250 | # define EV_USE_FLOOR 0 |
|
|
251 | #endif |
|
|
252 | |
|
|
253 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
|
|
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
256 | # else |
|
|
257 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
258 | # endif |
|
|
259 | #endif |
|
|
260 | |
|
|
261 | #if !(_POSIX_TIMERS > 0) |
|
|
262 | # ifndef EV_USE_MONOTONIC |
|
|
263 | # define EV_USE_MONOTONIC 0 |
|
|
264 | # endif |
|
|
265 | # ifndef EV_USE_REALTIME |
|
|
266 | # define EV_USE_REALTIME 0 |
|
|
267 | # endif |
|
|
268 | #endif |
|
|
269 | |
169 | #ifndef EV_USE_MONOTONIC |
270 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
271 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
272 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
172 | # else |
273 | # else |
173 | # define EV_USE_MONOTONIC 0 |
274 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
275 | # endif |
175 | #endif |
276 | #endif |
176 | |
277 | |
177 | #ifndef EV_USE_REALTIME |
278 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
279 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
280 | #endif |
180 | |
281 | |
181 | #ifndef EV_USE_NANOSLEEP |
282 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
283 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
284 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
184 | # else |
285 | # else |
185 | # define EV_USE_NANOSLEEP 0 |
286 | # define EV_USE_NANOSLEEP 0 |
186 | # endif |
287 | # endif |
187 | #endif |
288 | #endif |
188 | |
289 | |
189 | #ifndef EV_USE_SELECT |
290 | #ifndef EV_USE_SELECT |
190 | # define EV_USE_SELECT 1 |
291 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
191 | #endif |
292 | #endif |
192 | |
293 | |
193 | #ifndef EV_USE_POLL |
294 | #ifndef EV_USE_POLL |
194 | # ifdef _WIN32 |
295 | # ifdef _WIN32 |
195 | # define EV_USE_POLL 0 |
296 | # define EV_USE_POLL 0 |
196 | # else |
297 | # else |
197 | # define EV_USE_POLL 1 |
298 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
198 | # endif |
299 | # endif |
199 | #endif |
300 | #endif |
200 | |
301 | |
201 | #ifndef EV_USE_EPOLL |
302 | #ifndef EV_USE_EPOLL |
202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
203 | # define EV_USE_EPOLL 1 |
304 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
204 | # else |
305 | # else |
205 | # define EV_USE_EPOLL 0 |
306 | # define EV_USE_EPOLL 0 |
206 | # endif |
307 | # endif |
207 | #endif |
308 | #endif |
208 | |
309 | |
… | |
… | |
214 | # define EV_USE_PORT 0 |
315 | # define EV_USE_PORT 0 |
215 | #endif |
316 | #endif |
216 | |
317 | |
217 | #ifndef EV_USE_INOTIFY |
318 | #ifndef EV_USE_INOTIFY |
218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
219 | # define EV_USE_INOTIFY 1 |
320 | # define EV_USE_INOTIFY EV_FEATURE_OS |
220 | # else |
321 | # else |
221 | # define EV_USE_INOTIFY 0 |
322 | # define EV_USE_INOTIFY 0 |
222 | # endif |
323 | # endif |
223 | #endif |
324 | #endif |
224 | |
325 | |
225 | #ifndef EV_PID_HASHSIZE |
326 | #ifndef EV_PID_HASHSIZE |
226 | # if EV_MINIMAL |
327 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
227 | # define EV_PID_HASHSIZE 1 |
|
|
228 | # else |
|
|
229 | # define EV_PID_HASHSIZE 16 |
|
|
230 | # endif |
|
|
231 | #endif |
328 | #endif |
232 | |
329 | |
233 | #ifndef EV_INOTIFY_HASHSIZE |
330 | #ifndef EV_INOTIFY_HASHSIZE |
234 | # if EV_MINIMAL |
331 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
235 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
236 | # else |
|
|
237 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
238 | # endif |
|
|
239 | #endif |
332 | #endif |
240 | |
333 | |
241 | #ifndef EV_USE_EVENTFD |
334 | #ifndef EV_USE_EVENTFD |
242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
335 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
243 | # define EV_USE_EVENTFD 1 |
336 | # define EV_USE_EVENTFD EV_FEATURE_OS |
244 | # else |
337 | # else |
245 | # define EV_USE_EVENTFD 0 |
338 | # define EV_USE_EVENTFD 0 |
|
|
339 | # endif |
|
|
340 | #endif |
|
|
341 | |
|
|
342 | #ifndef EV_USE_SIGNALFD |
|
|
343 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
344 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
345 | # else |
|
|
346 | # define EV_USE_SIGNALFD 0 |
246 | # endif |
347 | # endif |
247 | #endif |
348 | #endif |
248 | |
349 | |
249 | #if 0 /* debugging */ |
350 | #if 0 /* debugging */ |
250 | # define EV_VERIFY 3 |
351 | # define EV_VERIFY 3 |
251 | # define EV_USE_4HEAP 1 |
352 | # define EV_USE_4HEAP 1 |
252 | # define EV_HEAP_CACHE_AT 1 |
353 | # define EV_HEAP_CACHE_AT 1 |
253 | #endif |
354 | #endif |
254 | |
355 | |
255 | #ifndef EV_VERIFY |
356 | #ifndef EV_VERIFY |
256 | # define EV_VERIFY !EV_MINIMAL |
357 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
257 | #endif |
358 | #endif |
258 | |
359 | |
259 | #ifndef EV_USE_4HEAP |
360 | #ifndef EV_USE_4HEAP |
260 | # define EV_USE_4HEAP !EV_MINIMAL |
361 | # define EV_USE_4HEAP EV_FEATURE_DATA |
261 | #endif |
362 | #endif |
262 | |
363 | |
263 | #ifndef EV_HEAP_CACHE_AT |
364 | #ifndef EV_HEAP_CACHE_AT |
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
365 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
366 | #endif |
|
|
367 | |
|
|
368 | #ifdef __ANDROID__ |
|
|
369 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
370 | # undef EV_USE_SELECT |
|
|
371 | # define EV_USE_SELECT 0 |
|
|
372 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
373 | # undef EV_USE_CLOCK_SYSCALL |
|
|
374 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
375 | #endif |
|
|
376 | |
|
|
377 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
|
|
382 | #endif |
|
|
383 | |
|
|
384 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
385 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
386 | #if EV_USE_CLOCK_SYSCALL |
|
|
387 | # include <sys/syscall.h> |
|
|
388 | # ifdef SYS_clock_gettime |
|
|
389 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
390 | # undef EV_USE_MONOTONIC |
|
|
391 | # define EV_USE_MONOTONIC 1 |
|
|
392 | # else |
|
|
393 | # undef EV_USE_CLOCK_SYSCALL |
|
|
394 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
395 | # endif |
265 | #endif |
396 | #endif |
266 | |
397 | |
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
398 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
268 | |
399 | |
269 | #ifndef CLOCK_MONOTONIC |
400 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
280 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
281 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
282 | #endif |
413 | #endif |
283 | |
414 | |
284 | #if !EV_USE_NANOSLEEP |
415 | #if !EV_USE_NANOSLEEP |
285 | # ifndef _WIN32 |
416 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
417 | # if !defined _WIN32 && !defined __hpux |
286 | # include <sys/select.h> |
418 | # include <sys/select.h> |
287 | # endif |
419 | # endif |
288 | #endif |
420 | #endif |
289 | |
421 | |
290 | #if EV_USE_INOTIFY |
422 | #if EV_USE_INOTIFY |
|
|
423 | # include <sys/statfs.h> |
291 | # include <sys/inotify.h> |
424 | # include <sys/inotify.h> |
|
|
425 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
426 | # ifndef IN_DONT_FOLLOW |
|
|
427 | # undef EV_USE_INOTIFY |
|
|
428 | # define EV_USE_INOTIFY 0 |
292 | #endif |
429 | # endif |
293 | |
|
|
294 | #if EV_SELECT_IS_WINSOCKET |
|
|
295 | # include <winsock.h> |
|
|
296 | #endif |
430 | #endif |
297 | |
431 | |
298 | #if EV_USE_EVENTFD |
432 | #if EV_USE_EVENTFD |
299 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
300 | # include <stdint.h> |
434 | # include <stdint.h> |
301 | # ifdef __cplusplus |
435 | # ifndef EFD_NONBLOCK |
302 | extern "C" { |
436 | # define EFD_NONBLOCK O_NONBLOCK |
303 | # endif |
437 | # endif |
304 | int eventfd (unsigned int initval, int flags); |
438 | # ifndef EFD_CLOEXEC |
305 | # ifdef __cplusplus |
439 | # ifdef O_CLOEXEC |
306 | } |
440 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
441 | # else |
|
|
442 | # define EFD_CLOEXEC 02000000 |
|
|
443 | # endif |
307 | # endif |
444 | # endif |
|
|
445 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
446 | #endif |
|
|
447 | |
|
|
448 | #if EV_USE_SIGNALFD |
|
|
449 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
450 | # include <stdint.h> |
|
|
451 | # ifndef SFD_NONBLOCK |
|
|
452 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
453 | # endif |
|
|
454 | # ifndef SFD_CLOEXEC |
|
|
455 | # ifdef O_CLOEXEC |
|
|
456 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
457 | # else |
|
|
458 | # define SFD_CLOEXEC 02000000 |
|
|
459 | # endif |
|
|
460 | # endif |
|
|
461 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
462 | |
|
|
463 | struct signalfd_siginfo |
|
|
464 | { |
|
|
465 | uint32_t ssi_signo; |
|
|
466 | char pad[128 - sizeof (uint32_t)]; |
|
|
467 | }; |
308 | #endif |
468 | #endif |
309 | |
469 | |
310 | /**/ |
470 | /**/ |
311 | |
471 | |
312 | #if EV_VERIFY >= 3 |
472 | #if EV_VERIFY >= 3 |
313 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
473 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
314 | #else |
474 | #else |
315 | # define EV_FREQUENT_CHECK do { } while (0) |
475 | # define EV_FREQUENT_CHECK do { } while (0) |
316 | #endif |
476 | #endif |
317 | |
477 | |
318 | /* |
478 | /* |
319 | * This is used to avoid floating point rounding problems. |
479 | * This is used to work around floating point rounding problems. |
320 | * It is added to ev_rt_now when scheduling periodics |
|
|
321 | * to ensure progress, time-wise, even when rounding |
|
|
322 | * errors are against us. |
|
|
323 | * This value is good at least till the year 4000. |
480 | * This value is good at least till the year 4000. |
324 | * Better solutions welcome. |
|
|
325 | */ |
481 | */ |
326 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
482 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
483 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
327 | |
484 | |
328 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
485 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
329 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
486 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
330 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
331 | |
487 | |
|
|
488 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
489 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
490 | |
|
|
491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
492 | /* ECB.H BEGIN */ |
|
|
493 | /* |
|
|
494 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
495 | * |
|
|
496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
497 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
498 | * All rights reserved. |
|
|
499 | * |
|
|
500 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
501 | * tion, are permitted provided that the following conditions are met: |
|
|
502 | * |
|
|
503 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
504 | * this list of conditions and the following disclaimer. |
|
|
505 | * |
|
|
506 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
507 | * notice, this list of conditions and the following disclaimer in the |
|
|
508 | * documentation and/or other materials provided with the distribution. |
|
|
509 | * |
|
|
510 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
511 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
512 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
513 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
514 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
515 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
516 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
517 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
518 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
519 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
520 | * |
|
|
521 | * Alternatively, the contents of this file may be used under the terms of |
|
|
522 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
523 | * in which case the provisions of the GPL are applicable instead of |
|
|
524 | * the above. If you wish to allow the use of your version of this file |
|
|
525 | * only under the terms of the GPL and not to allow others to use your |
|
|
526 | * version of this file under the BSD license, indicate your decision |
|
|
527 | * by deleting the provisions above and replace them with the notice |
|
|
528 | * and other provisions required by the GPL. If you do not delete the |
|
|
529 | * provisions above, a recipient may use your version of this file under |
|
|
530 | * either the BSD or the GPL. |
|
|
531 | */ |
|
|
532 | |
|
|
533 | #ifndef ECB_H |
|
|
534 | #define ECB_H |
|
|
535 | |
|
|
536 | /* 16 bits major, 16 bits minor */ |
|
|
537 | #define ECB_VERSION 0x00010005 |
|
|
538 | |
|
|
539 | #ifdef _WIN32 |
|
|
540 | typedef signed char int8_t; |
|
|
541 | typedef unsigned char uint8_t; |
|
|
542 | typedef signed short int16_t; |
|
|
543 | typedef unsigned short uint16_t; |
|
|
544 | typedef signed int int32_t; |
|
|
545 | typedef unsigned int uint32_t; |
332 | #if __GNUC__ >= 4 |
546 | #if __GNUC__ |
|
|
547 | typedef signed long long int64_t; |
|
|
548 | typedef unsigned long long uint64_t; |
|
|
549 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
550 | typedef signed __int64 int64_t; |
|
|
551 | typedef unsigned __int64 uint64_t; |
|
|
552 | #endif |
|
|
553 | #ifdef _WIN64 |
|
|
554 | #define ECB_PTRSIZE 8 |
|
|
555 | typedef uint64_t uintptr_t; |
|
|
556 | typedef int64_t intptr_t; |
|
|
557 | #else |
|
|
558 | #define ECB_PTRSIZE 4 |
|
|
559 | typedef uint32_t uintptr_t; |
|
|
560 | typedef int32_t intptr_t; |
|
|
561 | #endif |
|
|
562 | #else |
|
|
563 | #include <inttypes.h> |
|
|
564 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
|
|
565 | #define ECB_PTRSIZE 8 |
|
|
566 | #else |
|
|
567 | #define ECB_PTRSIZE 4 |
|
|
568 | #endif |
|
|
569 | #endif |
|
|
570 | |
|
|
571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
573 | |
|
|
574 | /* work around x32 idiocy by defining proper macros */ |
|
|
575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
576 | #if _ILP32 |
|
|
577 | #define ECB_AMD64_X32 1 |
|
|
578 | #else |
|
|
579 | #define ECB_AMD64 1 |
|
|
580 | #endif |
|
|
581 | #endif |
|
|
582 | |
|
|
583 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
584 | * what their idiot authors think are the "more important" extensions, |
|
|
585 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
586 | * or so. |
|
|
587 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
588 | * an issue with that they should have done it right in the first place. |
|
|
589 | */ |
|
|
590 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
591 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
592 | #else |
|
|
593 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
594 | #endif |
|
|
595 | |
|
|
596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
597 | |
|
|
598 | #if __clang__ && defined __has_builtin |
|
|
599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
600 | #else |
|
|
601 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | #if __clang__ && defined __has_extension |
|
|
605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
606 | #else |
|
|
607 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #define ECB_CPP (__cplusplus+0) |
|
|
611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
612 | |
|
|
613 | #if ECB_CPP |
|
|
614 | #define ECB_C 0 |
|
|
615 | #define ECB_STDC_VERSION 0 |
|
|
616 | #else |
|
|
617 | #define ECB_C 1 |
|
|
618 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
622 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
623 | |
|
|
624 | #if ECB_CPP |
|
|
625 | #define ECB_EXTERN_C extern "C" |
|
|
626 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
627 | #define ECB_EXTERN_C_END } |
|
|
628 | #else |
|
|
629 | #define ECB_EXTERN_C extern |
|
|
630 | #define ECB_EXTERN_C_BEG |
|
|
631 | #define ECB_EXTERN_C_END |
|
|
632 | #endif |
|
|
633 | |
|
|
634 | /*****************************************************************************/ |
|
|
635 | |
|
|
636 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
637 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
638 | |
|
|
639 | #if ECB_NO_THREADS |
|
|
640 | #define ECB_NO_SMP 1 |
|
|
641 | #endif |
|
|
642 | |
|
|
643 | #if ECB_NO_SMP |
|
|
644 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
645 | #endif |
|
|
646 | |
|
|
647 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
648 | #if __xlC__ && ECB_CPP |
|
|
649 | #include <builtins.h> |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #if 1400 <= _MSC_VER |
|
|
653 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
654 | #endif |
|
|
655 | |
|
|
656 | #ifndef ECB_MEMORY_FENCE |
|
|
657 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
658 | #if __i386 || __i386__ |
|
|
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
662 | #elif ECB_GCC_AMD64 |
|
|
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
664 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
665 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
666 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
667 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
668 | #elif defined __ARM_ARCH_2__ \ |
|
|
669 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
670 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
671 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
672 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
673 | || defined __ARM_ARCH_5TEJ__ |
|
|
674 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
675 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
676 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
677 | || defined __ARM_ARCH_6T2__ |
|
|
678 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
679 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
680 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
681 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
682 | #elif __aarch64__ |
|
|
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
684 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
686 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
687 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
688 | #elif defined __s390__ || defined __s390x__ |
|
|
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
690 | #elif defined __mips__ |
|
|
691 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
692 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
693 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
694 | #elif defined __alpha__ |
|
|
695 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
696 | #elif defined __hppa__ |
|
|
697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
698 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
699 | #elif defined __ia64__ |
|
|
700 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
701 | #elif defined __m68k__ |
|
|
702 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
703 | #elif defined __m88k__ |
|
|
704 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
705 | #elif defined __sh__ |
|
|
706 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
707 | #endif |
|
|
708 | #endif |
|
|
709 | #endif |
|
|
710 | |
|
|
711 | #ifndef ECB_MEMORY_FENCE |
|
|
712 | #if ECB_GCC_VERSION(4,7) |
|
|
713 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
714 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
715 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
716 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
717 | |
|
|
718 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
719 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
720 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
721 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
722 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
723 | |
|
|
724 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
725 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
726 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
727 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
728 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
729 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
730 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
731 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
732 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
733 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
734 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
735 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
736 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
737 | #elif defined _WIN32 |
|
|
738 | #include <WinNT.h> |
|
|
739 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
740 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
741 | #include <mbarrier.h> |
|
|
742 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
743 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
744 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
745 | #elif __xlC__ |
|
|
746 | #define ECB_MEMORY_FENCE __sync () |
|
|
747 | #endif |
|
|
748 | #endif |
|
|
749 | |
|
|
750 | #ifndef ECB_MEMORY_FENCE |
|
|
751 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
752 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
753 | /* not just C11 atomics and atomic accesses */ |
|
|
754 | #include <stdatomic.h> |
|
|
755 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
756 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
757 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
758 | /* for most usages, or gcc and clang have a bug */ |
|
|
759 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
760 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
761 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
762 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
763 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
764 | #endif |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | #ifndef ECB_MEMORY_FENCE |
|
|
768 | #if !ECB_AVOID_PTHREADS |
|
|
769 | /* |
|
|
770 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
771 | * or failure to find pthread.h, then you should implement |
|
|
772 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
773 | * OR provide pthread.h and link against the posix thread library |
|
|
774 | * of your system. |
|
|
775 | */ |
|
|
776 | #include <pthread.h> |
|
|
777 | #define ECB_NEEDS_PTHREADS 1 |
|
|
778 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
779 | |
|
|
780 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
781 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
782 | #endif |
|
|
783 | #endif |
|
|
784 | |
|
|
785 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
786 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
787 | #endif |
|
|
788 | |
|
|
789 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
790 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
791 | #endif |
|
|
792 | |
|
|
793 | /*****************************************************************************/ |
|
|
794 | |
|
|
795 | #if ECB_CPP |
|
|
796 | #define ecb_inline static inline |
|
|
797 | #elif ECB_GCC_VERSION(2,5) |
|
|
798 | #define ecb_inline static __inline__ |
|
|
799 | #elif ECB_C99 |
|
|
800 | #define ecb_inline static inline |
|
|
801 | #else |
|
|
802 | #define ecb_inline static |
|
|
803 | #endif |
|
|
804 | |
|
|
805 | #if ECB_GCC_VERSION(3,3) |
|
|
806 | #define ecb_restrict __restrict__ |
|
|
807 | #elif ECB_C99 |
|
|
808 | #define ecb_restrict restrict |
|
|
809 | #else |
|
|
810 | #define ecb_restrict |
|
|
811 | #endif |
|
|
812 | |
|
|
813 | typedef int ecb_bool; |
|
|
814 | |
|
|
815 | #define ECB_CONCAT_(a, b) a ## b |
|
|
816 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
817 | #define ECB_STRINGIFY_(a) # a |
|
|
818 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
819 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
820 | |
|
|
821 | #define ecb_function_ ecb_inline |
|
|
822 | |
|
|
823 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
824 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
825 | #else |
|
|
826 | #define ecb_attribute(attrlist) |
|
|
827 | #endif |
|
|
828 | |
|
|
829 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
830 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
831 | #else |
|
|
832 | /* possible C11 impl for integral types |
|
|
833 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
834 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
835 | |
|
|
836 | #define ecb_is_constant(expr) 0 |
|
|
837 | #endif |
|
|
838 | |
|
|
839 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
333 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
840 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
334 | # define noinline __attribute__ ((noinline)) |
|
|
335 | #else |
841 | #else |
336 | # define expect(expr,value) (expr) |
842 | #define ecb_expect(expr,value) (expr) |
337 | # define noinline |
|
|
338 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
339 | # define inline |
|
|
340 | # endif |
843 | #endif |
341 | #endif |
|
|
342 | |
844 | |
|
|
845 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
846 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
847 | #else |
|
|
848 | #define ecb_prefetch(addr,rw,locality) |
|
|
849 | #endif |
|
|
850 | |
|
|
851 | /* no emulation for ecb_decltype */ |
|
|
852 | #if ECB_CPP11 |
|
|
853 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
854 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
855 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
856 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
857 | #define ecb_decltype(x) __typeof__ (x) |
|
|
858 | #endif |
|
|
859 | |
|
|
860 | #if _MSC_VER >= 1300 |
|
|
861 | #define ecb_deprecated __declspec (deprecated) |
|
|
862 | #else |
|
|
863 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
864 | #endif |
|
|
865 | |
|
|
866 | #if _MSC_VER >= 1500 |
|
|
867 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
868 | #elif ECB_GCC_VERSION(4,5) |
|
|
869 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
870 | #else |
|
|
871 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | #if _MSC_VER >= 1400 |
|
|
875 | #define ecb_noinline __declspec (noinline) |
|
|
876 | #else |
|
|
877 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
881 | #define ecb_const ecb_attribute ((__const__)) |
|
|
882 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
883 | |
|
|
884 | #if ECB_C11 || __IBMC_NORETURN |
|
|
885 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
886 | #define ecb_noreturn _Noreturn |
|
|
887 | #elif ECB_CPP11 |
|
|
888 | #define ecb_noreturn [[noreturn]] |
|
|
889 | #elif _MSC_VER >= 1200 |
|
|
890 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
891 | #define ecb_noreturn __declspec (noreturn) |
|
|
892 | #else |
|
|
893 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
894 | #endif |
|
|
895 | |
|
|
896 | #if ECB_GCC_VERSION(4,3) |
|
|
897 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
898 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
899 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
900 | #else |
|
|
901 | #define ecb_artificial |
|
|
902 | #define ecb_hot |
|
|
903 | #define ecb_cold |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | /* put around conditional expressions if you are very sure that the */ |
|
|
907 | /* expression is mostly true or mostly false. note that these return */ |
|
|
908 | /* booleans, not the expression. */ |
343 | #define expect_false(expr) expect ((expr) != 0, 0) |
909 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
344 | #define expect_true(expr) expect ((expr) != 0, 1) |
910 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
911 | /* for compatibility to the rest of the world */ |
|
|
912 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
913 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
914 | |
|
|
915 | /* count trailing zero bits and count # of one bits */ |
|
|
916 | #if ECB_GCC_VERSION(3,4) \ |
|
|
917 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
918 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
919 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
920 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
921 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
922 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
923 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
924 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
925 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
926 | /* no popcountll */ |
|
|
927 | #else |
|
|
928 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
929 | ecb_function_ ecb_const int |
|
|
930 | ecb_ctz32 (uint32_t x) |
|
|
931 | { |
|
|
932 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
933 | unsigned long r; |
|
|
934 | _BitScanForward (&r, x); |
|
|
935 | return (int)r; |
|
|
936 | #else |
|
|
937 | int r = 0; |
|
|
938 | |
|
|
939 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
940 | |
|
|
941 | #if ECB_branchless_on_i386 |
|
|
942 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
943 | r += !!(x & 0xcccccccc) << 1; |
|
|
944 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
945 | r += !!(x & 0xff00ff00) << 3; |
|
|
946 | r += !!(x & 0xffff0000) << 4; |
|
|
947 | #else |
|
|
948 | if (x & 0xaaaaaaaa) r += 1; |
|
|
949 | if (x & 0xcccccccc) r += 2; |
|
|
950 | if (x & 0xf0f0f0f0) r += 4; |
|
|
951 | if (x & 0xff00ff00) r += 8; |
|
|
952 | if (x & 0xffff0000) r += 16; |
|
|
953 | #endif |
|
|
954 | |
|
|
955 | return r; |
|
|
956 | #endif |
|
|
957 | } |
|
|
958 | |
|
|
959 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
960 | ecb_function_ ecb_const int |
|
|
961 | ecb_ctz64 (uint64_t x) |
|
|
962 | { |
|
|
963 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
964 | unsigned long r; |
|
|
965 | _BitScanForward64 (&r, x); |
|
|
966 | return (int)r; |
|
|
967 | #else |
|
|
968 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
969 | return ecb_ctz32 (x >> shift) + shift; |
|
|
970 | #endif |
|
|
971 | } |
|
|
972 | |
|
|
973 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
974 | ecb_function_ ecb_const int |
|
|
975 | ecb_popcount32 (uint32_t x) |
|
|
976 | { |
|
|
977 | x -= (x >> 1) & 0x55555555; |
|
|
978 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
979 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
980 | x *= 0x01010101; |
|
|
981 | |
|
|
982 | return x >> 24; |
|
|
983 | } |
|
|
984 | |
|
|
985 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
986 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
987 | { |
|
|
988 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
989 | unsigned long r; |
|
|
990 | _BitScanReverse (&r, x); |
|
|
991 | return (int)r; |
|
|
992 | #else |
|
|
993 | int r = 0; |
|
|
994 | |
|
|
995 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
996 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
997 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
998 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
999 | if (x >> 1) { r += 1; } |
|
|
1000 | |
|
|
1001 | return r; |
|
|
1002 | #endif |
|
|
1003 | } |
|
|
1004 | |
|
|
1005 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1006 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1007 | { |
|
|
1008 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1009 | unsigned long r; |
|
|
1010 | _BitScanReverse64 (&r, x); |
|
|
1011 | return (int)r; |
|
|
1012 | #else |
|
|
1013 | int r = 0; |
|
|
1014 | |
|
|
1015 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1016 | |
|
|
1017 | return r + ecb_ld32 (x); |
|
|
1018 | #endif |
|
|
1019 | } |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1023 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1024 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1025 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1026 | |
|
|
1027 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1028 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1029 | { |
|
|
1030 | return ( (x * 0x0802U & 0x22110U) |
|
|
1031 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1035 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1036 | { |
|
|
1037 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1038 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1039 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1040 | x = ( x >> 8 ) | ( x << 8); |
|
|
1041 | |
|
|
1042 | return x; |
|
|
1043 | } |
|
|
1044 | |
|
|
1045 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1046 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1047 | { |
|
|
1048 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1049 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1050 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1051 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1052 | x = ( x >> 16 ) | ( x << 16); |
|
|
1053 | |
|
|
1054 | return x; |
|
|
1055 | } |
|
|
1056 | |
|
|
1057 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1058 | /* so for this version we are lazy */ |
|
|
1059 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1060 | ecb_function_ ecb_const int |
|
|
1061 | ecb_popcount64 (uint64_t x) |
|
|
1062 | { |
|
|
1063 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1067 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1068 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1069 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1070 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1071 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1072 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1073 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1074 | |
|
|
1075 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1076 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1077 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1078 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1079 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1080 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1081 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1082 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1083 | |
|
|
1084 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1085 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1086 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1087 | #else |
|
|
1088 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1089 | #endif |
|
|
1090 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1091 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1092 | #elif _MSC_VER |
|
|
1093 | #include <stdlib.h> |
|
|
1094 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1095 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1096 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1097 | #else |
|
|
1098 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1099 | ecb_function_ ecb_const uint16_t |
|
|
1100 | ecb_bswap16 (uint16_t x) |
|
|
1101 | { |
|
|
1102 | return ecb_rotl16 (x, 8); |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1106 | ecb_function_ ecb_const uint32_t |
|
|
1107 | ecb_bswap32 (uint32_t x) |
|
|
1108 | { |
|
|
1109 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1113 | ecb_function_ ecb_const uint64_t |
|
|
1114 | ecb_bswap64 (uint64_t x) |
|
|
1115 | { |
|
|
1116 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1117 | } |
|
|
1118 | #endif |
|
|
1119 | |
|
|
1120 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1121 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1122 | #else |
|
|
1123 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1124 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1125 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1126 | #endif |
|
|
1127 | |
|
|
1128 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1129 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1130 | |
|
|
1131 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1132 | ecb_inline ecb_const uint32_t |
|
|
1133 | ecb_byteorder_helper (void) |
|
|
1134 | { |
|
|
1135 | /* the union code still generates code under pressure in gcc, */ |
|
|
1136 | /* but less than using pointers, and always seems to */ |
|
|
1137 | /* successfully return a constant. */ |
|
|
1138 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1139 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1140 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1141 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1142 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1143 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1144 | return 0x44332211; |
|
|
1145 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1146 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1147 | #define ECB_BIG_ENDIAN 1 |
|
|
1148 | return 0x11223344; |
|
|
1149 | #else |
|
|
1150 | union |
|
|
1151 | { |
|
|
1152 | uint8_t c[4]; |
|
|
1153 | uint32_t u; |
|
|
1154 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1155 | return u.u; |
|
|
1156 | #endif |
|
|
1157 | } |
|
|
1158 | |
|
|
1159 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1160 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1161 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1162 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1163 | |
|
|
1164 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1165 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1166 | #else |
|
|
1167 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1168 | #endif |
|
|
1169 | |
|
|
1170 | #if ECB_CPP |
|
|
1171 | template<typename T> |
|
|
1172 | static inline T ecb_div_rd (T val, T div) |
|
|
1173 | { |
|
|
1174 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1175 | } |
|
|
1176 | template<typename T> |
|
|
1177 | static inline T ecb_div_ru (T val, T div) |
|
|
1178 | { |
|
|
1179 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1180 | } |
|
|
1181 | #else |
|
|
1182 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1183 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1184 | #endif |
|
|
1185 | |
|
|
1186 | #if ecb_cplusplus_does_not_suck |
|
|
1187 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1188 | template<typename T, int N> |
|
|
1189 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1190 | { |
|
|
1191 | return N; |
|
|
1192 | } |
|
|
1193 | #else |
|
|
1194 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1195 | #endif |
|
|
1196 | |
|
|
1197 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1198 | ecb_function_ ecb_const uint32_t |
|
|
1199 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1200 | { |
|
|
1201 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1202 | int e = (x >> 10) & 0x001f; |
|
|
1203 | unsigned int m = x & 0x03ff; |
|
|
1204 | |
|
|
1205 | if (ecb_expect_false (e == 31)) |
|
|
1206 | /* infinity or NaN */ |
|
|
1207 | e = 255 - (127 - 15); |
|
|
1208 | else if (ecb_expect_false (!e)) |
|
|
1209 | { |
|
|
1210 | if (ecb_expect_true (!m)) |
|
|
1211 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1212 | e = 0 - (127 - 15); |
|
|
1213 | else |
|
|
1214 | { |
|
|
1215 | /* subnormal, renormalise */ |
|
|
1216 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1217 | |
|
|
1218 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1219 | e -= s - 1; |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1224 | e += 127 - 15; |
|
|
1225 | |
|
|
1226 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1230 | ecb_function_ ecb_const uint16_t |
|
|
1231 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1232 | { |
|
|
1233 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1234 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1235 | unsigned int m = x & 0x007fffff; |
|
|
1236 | |
|
|
1237 | x &= 0x7fffffff; |
|
|
1238 | |
|
|
1239 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1240 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1241 | { |
|
|
1242 | /* mantissa round-to-even */ |
|
|
1243 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1244 | |
|
|
1245 | /* handle overflow */ |
|
|
1246 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1247 | { |
|
|
1248 | m >>= 1; |
|
|
1249 | e += 1; |
|
|
1250 | } |
|
|
1251 | |
|
|
1252 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | /* handle large numbers and infinity */ |
|
|
1256 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1257 | return s | 0x7c00; |
|
|
1258 | |
|
|
1259 | /* handle zero, subnormals and small numbers */ |
|
|
1260 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1261 | { |
|
|
1262 | /* zero */ |
|
|
1263 | if (ecb_expect_true (!x)) |
|
|
1264 | return s; |
|
|
1265 | |
|
|
1266 | /* handle subnormals */ |
|
|
1267 | |
|
|
1268 | /* too small, will be zero */ |
|
|
1269 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1270 | return s; |
|
|
1271 | |
|
|
1272 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1273 | |
|
|
1274 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1275 | { |
|
|
1276 | unsigned int bits = 14 - e; |
|
|
1277 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1278 | unsigned int even = (m >> bits) & 1; |
|
|
1279 | |
|
|
1280 | /* if this overflows, we will end up with a normalised number */ |
|
|
1281 | m = (m + half + even) >> bits; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | return s | m; |
|
|
1285 | } |
|
|
1286 | |
|
|
1287 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1288 | m >>= 13; |
|
|
1289 | |
|
|
1290 | return s | 0x7c00 | m | !m; |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | /*******************************************************************************/ |
|
|
1294 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1295 | |
|
|
1296 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1297 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1298 | #if 0 \ |
|
|
1299 | || __i386 || __i386__ \ |
|
|
1300 | || ECB_GCC_AMD64 \ |
|
|
1301 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1302 | || defined __s390__ || defined __s390x__ \ |
|
|
1303 | || defined __mips__ \ |
|
|
1304 | || defined __alpha__ \ |
|
|
1305 | || defined __hppa__ \ |
|
|
1306 | || defined __ia64__ \ |
|
|
1307 | || defined __m68k__ \ |
|
|
1308 | || defined __m88k__ \ |
|
|
1309 | || defined __sh__ \ |
|
|
1310 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1311 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1312 | || defined __aarch64__ |
|
|
1313 | #define ECB_STDFP 1 |
|
|
1314 | #include <string.h> /* for memcpy */ |
|
|
1315 | #else |
|
|
1316 | #define ECB_STDFP 0 |
|
|
1317 | #endif |
|
|
1318 | |
|
|
1319 | #ifndef ECB_NO_LIBM |
|
|
1320 | |
|
|
1321 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1322 | |
|
|
1323 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1324 | #ifdef INFINITY |
|
|
1325 | #define ECB_INFINITY INFINITY |
|
|
1326 | #else |
|
|
1327 | #define ECB_INFINITY HUGE_VAL |
|
|
1328 | #endif |
|
|
1329 | |
|
|
1330 | #ifdef NAN |
|
|
1331 | #define ECB_NAN NAN |
|
|
1332 | #else |
|
|
1333 | #define ECB_NAN ECB_INFINITY |
|
|
1334 | #endif |
|
|
1335 | |
|
|
1336 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1337 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1338 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1339 | #else |
|
|
1340 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1341 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1342 | #endif |
|
|
1343 | |
|
|
1344 | /* convert a float to ieee single/binary32 */ |
|
|
1345 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1346 | ecb_function_ ecb_const uint32_t |
|
|
1347 | ecb_float_to_binary32 (float x) |
|
|
1348 | { |
|
|
1349 | uint32_t r; |
|
|
1350 | |
|
|
1351 | #if ECB_STDFP |
|
|
1352 | memcpy (&r, &x, 4); |
|
|
1353 | #else |
|
|
1354 | /* slow emulation, works for anything but -0 */ |
|
|
1355 | uint32_t m; |
|
|
1356 | int e; |
|
|
1357 | |
|
|
1358 | if (x == 0e0f ) return 0x00000000U; |
|
|
1359 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1360 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1361 | if (x != x ) return 0x7fbfffffU; |
|
|
1362 | |
|
|
1363 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1364 | |
|
|
1365 | r = m & 0x80000000U; |
|
|
1366 | |
|
|
1367 | if (r) |
|
|
1368 | m = -m; |
|
|
1369 | |
|
|
1370 | if (e <= -126) |
|
|
1371 | { |
|
|
1372 | m &= 0xffffffU; |
|
|
1373 | m >>= (-125 - e); |
|
|
1374 | e = -126; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | r |= (e + 126) << 23; |
|
|
1378 | r |= m & 0x7fffffU; |
|
|
1379 | #endif |
|
|
1380 | |
|
|
1381 | return r; |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | /* converts an ieee single/binary32 to a float */ |
|
|
1385 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1386 | ecb_function_ ecb_const float |
|
|
1387 | ecb_binary32_to_float (uint32_t x) |
|
|
1388 | { |
|
|
1389 | float r; |
|
|
1390 | |
|
|
1391 | #if ECB_STDFP |
|
|
1392 | memcpy (&r, &x, 4); |
|
|
1393 | #else |
|
|
1394 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1395 | int neg = x >> 31; |
|
|
1396 | int e = (x >> 23) & 0xffU; |
|
|
1397 | |
|
|
1398 | x &= 0x7fffffU; |
|
|
1399 | |
|
|
1400 | if (e) |
|
|
1401 | x |= 0x800000U; |
|
|
1402 | else |
|
|
1403 | e = 1; |
|
|
1404 | |
|
|
1405 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1406 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1407 | |
|
|
1408 | r = neg ? -r : r; |
|
|
1409 | #endif |
|
|
1410 | |
|
|
1411 | return r; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | /* convert a double to ieee double/binary64 */ |
|
|
1415 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1416 | ecb_function_ ecb_const uint64_t |
|
|
1417 | ecb_double_to_binary64 (double x) |
|
|
1418 | { |
|
|
1419 | uint64_t r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 8); |
|
|
1423 | #else |
|
|
1424 | /* slow emulation, works for anything but -0 */ |
|
|
1425 | uint64_t m; |
|
|
1426 | int e; |
|
|
1427 | |
|
|
1428 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1429 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1430 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1431 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1432 | |
|
|
1433 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1434 | |
|
|
1435 | r = m & 0x8000000000000000;; |
|
|
1436 | |
|
|
1437 | if (r) |
|
|
1438 | m = -m; |
|
|
1439 | |
|
|
1440 | if (e <= -1022) |
|
|
1441 | { |
|
|
1442 | m &= 0x1fffffffffffffU; |
|
|
1443 | m >>= (-1021 - e); |
|
|
1444 | e = -1022; |
|
|
1445 | } |
|
|
1446 | |
|
|
1447 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1448 | r |= m & 0xfffffffffffffU; |
|
|
1449 | #endif |
|
|
1450 | |
|
|
1451 | return r; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | /* converts an ieee double/binary64 to a double */ |
|
|
1455 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1456 | ecb_function_ ecb_const double |
|
|
1457 | ecb_binary64_to_double (uint64_t x) |
|
|
1458 | { |
|
|
1459 | double r; |
|
|
1460 | |
|
|
1461 | #if ECB_STDFP |
|
|
1462 | memcpy (&r, &x, 8); |
|
|
1463 | #else |
|
|
1464 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1465 | int neg = x >> 63; |
|
|
1466 | int e = (x >> 52) & 0x7ffU; |
|
|
1467 | |
|
|
1468 | x &= 0xfffffffffffffU; |
|
|
1469 | |
|
|
1470 | if (e) |
|
|
1471 | x |= 0x10000000000000U; |
|
|
1472 | else |
|
|
1473 | e = 1; |
|
|
1474 | |
|
|
1475 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1476 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1477 | |
|
|
1478 | r = neg ? -r : r; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* convert a float to ieee half/binary16 */ |
|
|
1485 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1486 | ecb_function_ ecb_const uint16_t |
|
|
1487 | ecb_float_to_binary16 (float x) |
|
|
1488 | { |
|
|
1489 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | /* convert an ieee half/binary16 to float */ |
|
|
1493 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1494 | ecb_function_ ecb_const float |
|
|
1495 | ecb_binary16_to_float (uint16_t x) |
|
|
1496 | { |
|
|
1497 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | #endif |
|
|
1501 | |
|
|
1502 | #endif |
|
|
1503 | |
|
|
1504 | /* ECB.H END */ |
|
|
1505 | |
|
|
1506 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1507 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1508 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1509 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1510 | * libev, in which cases the memory fences become nops. |
|
|
1511 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1512 | * which will then provide the memory fences. |
|
|
1513 | */ |
|
|
1514 | # error "memory fences not defined for your architecture, please report" |
|
|
1515 | #endif |
|
|
1516 | |
|
|
1517 | #ifndef ECB_MEMORY_FENCE |
|
|
1518 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1519 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1520 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1521 | #endif |
|
|
1522 | |
|
|
1523 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1524 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1525 | #define noinline ecb_noinline |
|
|
1526 | |
345 | #define inline_size static inline |
1527 | #define inline_size ecb_inline |
346 | |
1528 | |
347 | #if EV_MINIMAL |
1529 | #if EV_FEATURE_CODE |
348 | # define inline_speed static noinline |
|
|
349 | #else |
|
|
350 | # define inline_speed static inline |
1530 | # define inline_speed ecb_inline |
|
|
1531 | #else |
|
|
1532 | # define inline_speed noinline static |
351 | #endif |
1533 | #endif |
352 | |
1534 | |
353 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1535 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
1536 | |
|
|
1537 | #if EV_MINPRI == EV_MAXPRI |
|
|
1538 | # define ABSPRI(w) (((W)w), 0) |
|
|
1539 | #else |
354 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1540 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
1541 | #endif |
355 | |
1542 | |
356 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1543 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
357 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
1544 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
358 | |
1545 | |
359 | typedef ev_watcher *W; |
1546 | typedef ev_watcher *W; |
… | |
… | |
361 | typedef ev_watcher_time *WT; |
1548 | typedef ev_watcher_time *WT; |
362 | |
1549 | |
363 | #define ev_active(w) ((W)(w))->active |
1550 | #define ev_active(w) ((W)(w))->active |
364 | #define ev_at(w) ((WT)(w))->at |
1551 | #define ev_at(w) ((WT)(w))->at |
365 | |
1552 | |
|
|
1553 | #if EV_USE_REALTIME |
|
|
1554 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
1555 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
1556 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
1557 | #endif |
|
|
1558 | |
366 | #if EV_USE_MONOTONIC |
1559 | #if EV_USE_MONOTONIC |
367 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
368 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
369 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1560 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
1561 | #endif |
|
|
1562 | |
|
|
1563 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1564 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1565 | #endif |
|
|
1566 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1567 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1568 | #endif |
|
|
1569 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1570 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
370 | #endif |
1571 | #endif |
371 | |
1572 | |
372 | #ifdef _WIN32 |
1573 | #ifdef _WIN32 |
373 | # include "ev_win32.c" |
1574 | # include "ev_win32.c" |
374 | #endif |
1575 | #endif |
375 | |
1576 | |
376 | /*****************************************************************************/ |
1577 | /*****************************************************************************/ |
377 | |
1578 | |
|
|
1579 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1580 | |
|
|
1581 | #if EV_USE_FLOOR |
|
|
1582 | # include <math.h> |
|
|
1583 | # define ev_floor(v) floor (v) |
|
|
1584 | #else |
|
|
1585 | |
|
|
1586 | #include <float.h> |
|
|
1587 | |
|
|
1588 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1589 | noinline |
|
|
1590 | static ev_tstamp |
|
|
1591 | ev_floor (ev_tstamp v) |
|
|
1592 | { |
|
|
1593 | /* the choice of shift factor is not terribly important */ |
|
|
1594 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1595 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1596 | #else |
|
|
1597 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1598 | #endif |
|
|
1599 | |
|
|
1600 | /* argument too large for an unsigned long? */ |
|
|
1601 | if (expect_false (v >= shift)) |
|
|
1602 | { |
|
|
1603 | ev_tstamp f; |
|
|
1604 | |
|
|
1605 | if (v == v - 1.) |
|
|
1606 | return v; /* very large number */ |
|
|
1607 | |
|
|
1608 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1609 | return f + ev_floor (v - f); |
|
|
1610 | } |
|
|
1611 | |
|
|
1612 | /* special treatment for negative args? */ |
|
|
1613 | if (expect_false (v < 0.)) |
|
|
1614 | { |
|
|
1615 | ev_tstamp f = -ev_floor (-v); |
|
|
1616 | |
|
|
1617 | return f - (f == v ? 0 : 1); |
|
|
1618 | } |
|
|
1619 | |
|
|
1620 | /* fits into an unsigned long */ |
|
|
1621 | return (unsigned long)v; |
|
|
1622 | } |
|
|
1623 | |
|
|
1624 | #endif |
|
|
1625 | |
|
|
1626 | /*****************************************************************************/ |
|
|
1627 | |
|
|
1628 | #ifdef __linux |
|
|
1629 | # include <sys/utsname.h> |
|
|
1630 | #endif |
|
|
1631 | |
|
|
1632 | noinline ecb_cold |
|
|
1633 | static unsigned int |
|
|
1634 | ev_linux_version (void) |
|
|
1635 | { |
|
|
1636 | #ifdef __linux |
|
|
1637 | unsigned int v = 0; |
|
|
1638 | struct utsname buf; |
|
|
1639 | int i; |
|
|
1640 | char *p = buf.release; |
|
|
1641 | |
|
|
1642 | if (uname (&buf)) |
|
|
1643 | return 0; |
|
|
1644 | |
|
|
1645 | for (i = 3+1; --i; ) |
|
|
1646 | { |
|
|
1647 | unsigned int c = 0; |
|
|
1648 | |
|
|
1649 | for (;;) |
|
|
1650 | { |
|
|
1651 | if (*p >= '0' && *p <= '9') |
|
|
1652 | c = c * 10 + *p++ - '0'; |
|
|
1653 | else |
|
|
1654 | { |
|
|
1655 | p += *p == '.'; |
|
|
1656 | break; |
|
|
1657 | } |
|
|
1658 | } |
|
|
1659 | |
|
|
1660 | v = (v << 8) | c; |
|
|
1661 | } |
|
|
1662 | |
|
|
1663 | return v; |
|
|
1664 | #else |
|
|
1665 | return 0; |
|
|
1666 | #endif |
|
|
1667 | } |
|
|
1668 | |
|
|
1669 | /*****************************************************************************/ |
|
|
1670 | |
|
|
1671 | #if EV_AVOID_STDIO |
|
|
1672 | noinline ecb_cold |
|
|
1673 | static void |
|
|
1674 | ev_printerr (const char *msg) |
|
|
1675 | { |
|
|
1676 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1677 | } |
|
|
1678 | #endif |
|
|
1679 | |
378 | static void (*syserr_cb)(const char *msg); |
1680 | static void (*syserr_cb)(const char *msg) EV_THROW; |
379 | |
1681 | |
|
|
1682 | ecb_cold |
380 | void |
1683 | void |
381 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1684 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
382 | { |
1685 | { |
383 | syserr_cb = cb; |
1686 | syserr_cb = cb; |
384 | } |
1687 | } |
385 | |
1688 | |
386 | static void noinline |
1689 | noinline ecb_cold |
|
|
1690 | static void |
387 | syserr (const char *msg) |
1691 | ev_syserr (const char *msg) |
388 | { |
1692 | { |
389 | if (!msg) |
1693 | if (!msg) |
390 | msg = "(libev) system error"; |
1694 | msg = "(libev) system error"; |
391 | |
1695 | |
392 | if (syserr_cb) |
1696 | if (syserr_cb) |
393 | syserr_cb (msg); |
1697 | syserr_cb (msg); |
394 | else |
1698 | else |
395 | { |
1699 | { |
|
|
1700 | #if EV_AVOID_STDIO |
|
|
1701 | ev_printerr (msg); |
|
|
1702 | ev_printerr (": "); |
|
|
1703 | ev_printerr (strerror (errno)); |
|
|
1704 | ev_printerr ("\n"); |
|
|
1705 | #else |
396 | perror (msg); |
1706 | perror (msg); |
|
|
1707 | #endif |
397 | abort (); |
1708 | abort (); |
398 | } |
1709 | } |
399 | } |
1710 | } |
400 | |
1711 | |
401 | static void * |
1712 | static void * |
402 | ev_realloc_emul (void *ptr, long size) |
1713 | ev_realloc_emul (void *ptr, long size) EV_THROW |
403 | { |
1714 | { |
404 | /* some systems, notably openbsd and darwin, fail to properly |
1715 | /* some systems, notably openbsd and darwin, fail to properly |
405 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1716 | * implement realloc (x, 0) (as required by both ansi c-89 and |
406 | * the single unix specification, so work around them here. |
1717 | * the single unix specification, so work around them here. |
|
|
1718 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1719 | * despite documenting it otherwise. |
407 | */ |
1720 | */ |
408 | |
1721 | |
409 | if (size) |
1722 | if (size) |
410 | return realloc (ptr, size); |
1723 | return realloc (ptr, size); |
411 | |
1724 | |
412 | free (ptr); |
1725 | free (ptr); |
413 | return 0; |
1726 | return 0; |
414 | } |
1727 | } |
415 | |
1728 | |
416 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1729 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
417 | |
1730 | |
|
|
1731 | ecb_cold |
418 | void |
1732 | void |
419 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1733 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
420 | { |
1734 | { |
421 | alloc = cb; |
1735 | alloc = cb; |
422 | } |
1736 | } |
423 | |
1737 | |
424 | inline_speed void * |
1738 | inline_speed void * |
… | |
… | |
426 | { |
1740 | { |
427 | ptr = alloc (ptr, size); |
1741 | ptr = alloc (ptr, size); |
428 | |
1742 | |
429 | if (!ptr && size) |
1743 | if (!ptr && size) |
430 | { |
1744 | { |
|
|
1745 | #if EV_AVOID_STDIO |
|
|
1746 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1747 | #else |
431 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1748 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1749 | #endif |
432 | abort (); |
1750 | abort (); |
433 | } |
1751 | } |
434 | |
1752 | |
435 | return ptr; |
1753 | return ptr; |
436 | } |
1754 | } |
… | |
… | |
438 | #define ev_malloc(size) ev_realloc (0, (size)) |
1756 | #define ev_malloc(size) ev_realloc (0, (size)) |
439 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1757 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
440 | |
1758 | |
441 | /*****************************************************************************/ |
1759 | /*****************************************************************************/ |
442 | |
1760 | |
|
|
1761 | /* set in reify when reification needed */ |
|
|
1762 | #define EV_ANFD_REIFY 1 |
|
|
1763 | |
|
|
1764 | /* file descriptor info structure */ |
443 | typedef struct |
1765 | typedef struct |
444 | { |
1766 | { |
445 | WL head; |
1767 | WL head; |
446 | unsigned char events; |
1768 | unsigned char events; /* the events watched for */ |
|
|
1769 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1770 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
447 | unsigned char reify; |
1771 | unsigned char unused; |
|
|
1772 | #if EV_USE_EPOLL |
|
|
1773 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1774 | #endif |
448 | #if EV_SELECT_IS_WINSOCKET |
1775 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
449 | SOCKET handle; |
1776 | SOCKET handle; |
450 | #endif |
1777 | #endif |
|
|
1778 | #if EV_USE_IOCP |
|
|
1779 | OVERLAPPED or, ow; |
|
|
1780 | #endif |
451 | } ANFD; |
1781 | } ANFD; |
452 | |
1782 | |
|
|
1783 | /* stores the pending event set for a given watcher */ |
453 | typedef struct |
1784 | typedef struct |
454 | { |
1785 | { |
455 | W w; |
1786 | W w; |
456 | int events; |
1787 | int events; /* the pending event set for the given watcher */ |
457 | } ANPENDING; |
1788 | } ANPENDING; |
458 | |
1789 | |
459 | #if EV_USE_INOTIFY |
1790 | #if EV_USE_INOTIFY |
460 | /* hash table entry per inotify-id */ |
1791 | /* hash table entry per inotify-id */ |
461 | typedef struct |
1792 | typedef struct |
… | |
… | |
464 | } ANFS; |
1795 | } ANFS; |
465 | #endif |
1796 | #endif |
466 | |
1797 | |
467 | /* Heap Entry */ |
1798 | /* Heap Entry */ |
468 | #if EV_HEAP_CACHE_AT |
1799 | #if EV_HEAP_CACHE_AT |
|
|
1800 | /* a heap element */ |
469 | typedef struct { |
1801 | typedef struct { |
470 | ev_tstamp at; |
1802 | ev_tstamp at; |
471 | WT w; |
1803 | WT w; |
472 | } ANHE; |
1804 | } ANHE; |
473 | |
1805 | |
474 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
1806 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
475 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
1807 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
476 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
1808 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
477 | #else |
1809 | #else |
|
|
1810 | /* a heap element */ |
478 | typedef WT ANHE; |
1811 | typedef WT ANHE; |
479 | |
1812 | |
480 | #define ANHE_w(he) (he) |
1813 | #define ANHE_w(he) (he) |
481 | #define ANHE_at(he) (he)->at |
1814 | #define ANHE_at(he) (he)->at |
482 | #define ANHE_at_cache(he) |
1815 | #define ANHE_at_cache(he) |
… | |
… | |
493 | #undef VAR |
1826 | #undef VAR |
494 | }; |
1827 | }; |
495 | #include "ev_wrap.h" |
1828 | #include "ev_wrap.h" |
496 | |
1829 | |
497 | static struct ev_loop default_loop_struct; |
1830 | static struct ev_loop default_loop_struct; |
498 | struct ev_loop *ev_default_loop_ptr; |
1831 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
499 | |
1832 | |
500 | #else |
1833 | #else |
501 | |
1834 | |
502 | ev_tstamp ev_rt_now; |
1835 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
503 | #define VAR(name,decl) static decl; |
1836 | #define VAR(name,decl) static decl; |
504 | #include "ev_vars.h" |
1837 | #include "ev_vars.h" |
505 | #undef VAR |
1838 | #undef VAR |
506 | |
1839 | |
507 | static int ev_default_loop_ptr; |
1840 | static int ev_default_loop_ptr; |
508 | |
1841 | |
509 | #endif |
1842 | #endif |
510 | |
1843 | |
|
|
1844 | #if EV_FEATURE_API |
|
|
1845 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1846 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1847 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1848 | #else |
|
|
1849 | # define EV_RELEASE_CB (void)0 |
|
|
1850 | # define EV_ACQUIRE_CB (void)0 |
|
|
1851 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1852 | #endif |
|
|
1853 | |
|
|
1854 | #define EVBREAK_RECURSE 0x80 |
|
|
1855 | |
511 | /*****************************************************************************/ |
1856 | /*****************************************************************************/ |
512 | |
1857 | |
|
|
1858 | #ifndef EV_HAVE_EV_TIME |
513 | ev_tstamp |
1859 | ev_tstamp |
514 | ev_time (void) |
1860 | ev_time (void) EV_THROW |
515 | { |
1861 | { |
516 | #if EV_USE_REALTIME |
1862 | #if EV_USE_REALTIME |
|
|
1863 | if (expect_true (have_realtime)) |
|
|
1864 | { |
517 | struct timespec ts; |
1865 | struct timespec ts; |
518 | clock_gettime (CLOCK_REALTIME, &ts); |
1866 | clock_gettime (CLOCK_REALTIME, &ts); |
519 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1867 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
520 | #else |
1868 | } |
|
|
1869 | #endif |
|
|
1870 | |
521 | struct timeval tv; |
1871 | struct timeval tv; |
522 | gettimeofday (&tv, 0); |
1872 | gettimeofday (&tv, 0); |
523 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1873 | return tv.tv_sec + tv.tv_usec * 1e-6; |
524 | #endif |
|
|
525 | } |
1874 | } |
|
|
1875 | #endif |
526 | |
1876 | |
527 | ev_tstamp inline_size |
1877 | inline_size ev_tstamp |
528 | get_clock (void) |
1878 | get_clock (void) |
529 | { |
1879 | { |
530 | #if EV_USE_MONOTONIC |
1880 | #if EV_USE_MONOTONIC |
531 | if (expect_true (have_monotonic)) |
1881 | if (expect_true (have_monotonic)) |
532 | { |
1882 | { |
… | |
… | |
539 | return ev_time (); |
1889 | return ev_time (); |
540 | } |
1890 | } |
541 | |
1891 | |
542 | #if EV_MULTIPLICITY |
1892 | #if EV_MULTIPLICITY |
543 | ev_tstamp |
1893 | ev_tstamp |
544 | ev_now (EV_P) |
1894 | ev_now (EV_P) EV_THROW |
545 | { |
1895 | { |
546 | return ev_rt_now; |
1896 | return ev_rt_now; |
547 | } |
1897 | } |
548 | #endif |
1898 | #endif |
549 | |
1899 | |
550 | void |
1900 | void |
551 | ev_sleep (ev_tstamp delay) |
1901 | ev_sleep (ev_tstamp delay) EV_THROW |
552 | { |
1902 | { |
553 | if (delay > 0.) |
1903 | if (delay > 0.) |
554 | { |
1904 | { |
555 | #if EV_USE_NANOSLEEP |
1905 | #if EV_USE_NANOSLEEP |
556 | struct timespec ts; |
1906 | struct timespec ts; |
557 | |
1907 | |
558 | ts.tv_sec = (time_t)delay; |
1908 | EV_TS_SET (ts, delay); |
559 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
560 | |
|
|
561 | nanosleep (&ts, 0); |
1909 | nanosleep (&ts, 0); |
562 | #elif defined(_WIN32) |
1910 | #elif defined _WIN32 |
|
|
1911 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1912 | /* compared to select (µs) or nanosleep (ns) */ |
563 | Sleep ((unsigned long)(delay * 1e3)); |
1913 | Sleep ((unsigned long)(delay * 1e3)); |
564 | #else |
1914 | #else |
565 | struct timeval tv; |
1915 | struct timeval tv; |
566 | |
1916 | |
567 | tv.tv_sec = (time_t)delay; |
|
|
568 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
569 | |
|
|
570 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1917 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
571 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
1918 | /* something not guaranteed by newer posix versions, but guaranteed */ |
572 | /* by older ones */ |
1919 | /* by older ones */ |
|
|
1920 | EV_TV_SET (tv, delay); |
573 | select (0, 0, 0, 0, &tv); |
1921 | select (0, 0, 0, 0, &tv); |
574 | #endif |
1922 | #endif |
575 | } |
1923 | } |
576 | } |
1924 | } |
577 | |
1925 | |
578 | /*****************************************************************************/ |
1926 | /*****************************************************************************/ |
579 | |
1927 | |
580 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1928 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
581 | |
1929 | |
582 | int inline_size |
1930 | /* find a suitable new size for the given array, */ |
|
|
1931 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1932 | inline_size int |
583 | array_nextsize (int elem, int cur, int cnt) |
1933 | array_nextsize (int elem, int cur, int cnt) |
584 | { |
1934 | { |
585 | int ncur = cur + 1; |
1935 | int ncur = cur + 1; |
586 | |
1936 | |
587 | do |
1937 | do |
588 | ncur <<= 1; |
1938 | ncur <<= 1; |
589 | while (cnt > ncur); |
1939 | while (cnt > ncur); |
590 | |
1940 | |
591 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1941 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
592 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1942 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
593 | { |
1943 | { |
594 | ncur *= elem; |
1944 | ncur *= elem; |
595 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1945 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
596 | ncur = ncur - sizeof (void *) * 4; |
1946 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
598 | } |
1948 | } |
599 | |
1949 | |
600 | return ncur; |
1950 | return ncur; |
601 | } |
1951 | } |
602 | |
1952 | |
603 | static noinline void * |
1953 | noinline ecb_cold |
|
|
1954 | static void * |
604 | array_realloc (int elem, void *base, int *cur, int cnt) |
1955 | array_realloc (int elem, void *base, int *cur, int cnt) |
605 | { |
1956 | { |
606 | *cur = array_nextsize (elem, *cur, cnt); |
1957 | *cur = array_nextsize (elem, *cur, cnt); |
607 | return ev_realloc (base, elem * *cur); |
1958 | return ev_realloc (base, elem * *cur); |
608 | } |
1959 | } |
|
|
1960 | |
|
|
1961 | #define array_init_zero(base,count) \ |
|
|
1962 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
609 | |
1963 | |
610 | #define array_needsize(type,base,cur,cnt,init) \ |
1964 | #define array_needsize(type,base,cur,cnt,init) \ |
611 | if (expect_false ((cnt) > (cur))) \ |
1965 | if (expect_false ((cnt) > (cur))) \ |
612 | { \ |
1966 | { \ |
613 | int ocur_ = (cur); \ |
1967 | ecb_unused int ocur_ = (cur); \ |
614 | (base) = (type *)array_realloc \ |
1968 | (base) = (type *)array_realloc \ |
615 | (sizeof (type), (base), &(cur), (cnt)); \ |
1969 | (sizeof (type), (base), &(cur), (cnt)); \ |
616 | init ((base) + (ocur_), (cur) - ocur_); \ |
1970 | init ((base) + (ocur_), (cur) - ocur_); \ |
617 | } |
1971 | } |
618 | |
1972 | |
… | |
… | |
625 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1979 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
626 | } |
1980 | } |
627 | #endif |
1981 | #endif |
628 | |
1982 | |
629 | #define array_free(stem, idx) \ |
1983 | #define array_free(stem, idx) \ |
630 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1984 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
631 | |
1985 | |
632 | /*****************************************************************************/ |
1986 | /*****************************************************************************/ |
633 | |
1987 | |
|
|
1988 | /* dummy callback for pending events */ |
634 | void noinline |
1989 | noinline |
|
|
1990 | static void |
|
|
1991 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1992 | { |
|
|
1993 | } |
|
|
1994 | |
|
|
1995 | noinline |
|
|
1996 | void |
635 | ev_feed_event (EV_P_ void *w, int revents) |
1997 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
636 | { |
1998 | { |
637 | W w_ = (W)w; |
1999 | W w_ = (W)w; |
638 | int pri = ABSPRI (w_); |
2000 | int pri = ABSPRI (w_); |
639 | |
2001 | |
640 | if (expect_false (w_->pending)) |
2002 | if (expect_false (w_->pending)) |
… | |
… | |
644 | w_->pending = ++pendingcnt [pri]; |
2006 | w_->pending = ++pendingcnt [pri]; |
645 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2007 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
646 | pendings [pri][w_->pending - 1].w = w_; |
2008 | pendings [pri][w_->pending - 1].w = w_; |
647 | pendings [pri][w_->pending - 1].events = revents; |
2009 | pendings [pri][w_->pending - 1].events = revents; |
648 | } |
2010 | } |
649 | } |
|
|
650 | |
2011 | |
651 | void inline_speed |
2012 | pendingpri = NUMPRI - 1; |
|
|
2013 | } |
|
|
2014 | |
|
|
2015 | inline_speed void |
|
|
2016 | feed_reverse (EV_P_ W w) |
|
|
2017 | { |
|
|
2018 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
2019 | rfeeds [rfeedcnt++] = w; |
|
|
2020 | } |
|
|
2021 | |
|
|
2022 | inline_size void |
|
|
2023 | feed_reverse_done (EV_P_ int revents) |
|
|
2024 | { |
|
|
2025 | do |
|
|
2026 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
2027 | while (rfeedcnt); |
|
|
2028 | } |
|
|
2029 | |
|
|
2030 | inline_speed void |
652 | queue_events (EV_P_ W *events, int eventcnt, int type) |
2031 | queue_events (EV_P_ W *events, int eventcnt, int type) |
653 | { |
2032 | { |
654 | int i; |
2033 | int i; |
655 | |
2034 | |
656 | for (i = 0; i < eventcnt; ++i) |
2035 | for (i = 0; i < eventcnt; ++i) |
657 | ev_feed_event (EV_A_ events [i], type); |
2036 | ev_feed_event (EV_A_ events [i], type); |
658 | } |
2037 | } |
659 | |
2038 | |
660 | /*****************************************************************************/ |
2039 | /*****************************************************************************/ |
661 | |
2040 | |
662 | void inline_size |
2041 | inline_speed void |
663 | anfds_init (ANFD *base, int count) |
|
|
664 | { |
|
|
665 | while (count--) |
|
|
666 | { |
|
|
667 | base->head = 0; |
|
|
668 | base->events = EV_NONE; |
|
|
669 | base->reify = 0; |
|
|
670 | |
|
|
671 | ++base; |
|
|
672 | } |
|
|
673 | } |
|
|
674 | |
|
|
675 | void inline_speed |
|
|
676 | fd_event (EV_P_ int fd, int revents) |
2042 | fd_event_nocheck (EV_P_ int fd, int revents) |
677 | { |
2043 | { |
678 | ANFD *anfd = anfds + fd; |
2044 | ANFD *anfd = anfds + fd; |
679 | ev_io *w; |
2045 | ev_io *w; |
680 | |
2046 | |
681 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2047 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
685 | if (ev) |
2051 | if (ev) |
686 | ev_feed_event (EV_A_ (W)w, ev); |
2052 | ev_feed_event (EV_A_ (W)w, ev); |
687 | } |
2053 | } |
688 | } |
2054 | } |
689 | |
2055 | |
|
|
2056 | /* do not submit kernel events for fds that have reify set */ |
|
|
2057 | /* because that means they changed while we were polling for new events */ |
|
|
2058 | inline_speed void |
|
|
2059 | fd_event (EV_P_ int fd, int revents) |
|
|
2060 | { |
|
|
2061 | ANFD *anfd = anfds + fd; |
|
|
2062 | |
|
|
2063 | if (expect_true (!anfd->reify)) |
|
|
2064 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
2065 | } |
|
|
2066 | |
690 | void |
2067 | void |
691 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2068 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
692 | { |
2069 | { |
693 | if (fd >= 0 && fd < anfdmax) |
2070 | if (fd >= 0 && fd < anfdmax) |
694 | fd_event (EV_A_ fd, revents); |
2071 | fd_event_nocheck (EV_A_ fd, revents); |
695 | } |
2072 | } |
696 | |
2073 | |
697 | void inline_size |
2074 | /* make sure the external fd watch events are in-sync */ |
|
|
2075 | /* with the kernel/libev internal state */ |
|
|
2076 | inline_size void |
698 | fd_reify (EV_P) |
2077 | fd_reify (EV_P) |
699 | { |
2078 | { |
700 | int i; |
2079 | int i; |
|
|
2080 | |
|
|
2081 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2082 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2083 | { |
|
|
2084 | int fd = fdchanges [i]; |
|
|
2085 | ANFD *anfd = anfds + fd; |
|
|
2086 | |
|
|
2087 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2088 | { |
|
|
2089 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2090 | |
|
|
2091 | if (handle != anfd->handle) |
|
|
2092 | { |
|
|
2093 | unsigned long arg; |
|
|
2094 | |
|
|
2095 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2096 | |
|
|
2097 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2098 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2099 | anfd->events = 0; |
|
|
2100 | anfd->handle = handle; |
|
|
2101 | } |
|
|
2102 | } |
|
|
2103 | } |
|
|
2104 | #endif |
701 | |
2105 | |
702 | for (i = 0; i < fdchangecnt; ++i) |
2106 | for (i = 0; i < fdchangecnt; ++i) |
703 | { |
2107 | { |
704 | int fd = fdchanges [i]; |
2108 | int fd = fdchanges [i]; |
705 | ANFD *anfd = anfds + fd; |
2109 | ANFD *anfd = anfds + fd; |
706 | ev_io *w; |
2110 | ev_io *w; |
707 | |
2111 | |
708 | unsigned char events = 0; |
2112 | unsigned char o_events = anfd->events; |
|
|
2113 | unsigned char o_reify = anfd->reify; |
709 | |
2114 | |
710 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2115 | anfd->reify = 0; |
711 | events |= (unsigned char)w->events; |
|
|
712 | |
2116 | |
713 | #if EV_SELECT_IS_WINSOCKET |
2117 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
714 | if (events) |
|
|
715 | { |
2118 | { |
716 | unsigned long arg; |
2119 | anfd->events = 0; |
717 | #ifdef EV_FD_TO_WIN32_HANDLE |
2120 | |
718 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
2121 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
719 | #else |
2122 | anfd->events |= (unsigned char)w->events; |
720 | anfd->handle = _get_osfhandle (fd); |
2123 | |
721 | #endif |
2124 | if (o_events != anfd->events) |
722 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
2125 | o_reify = EV__IOFDSET; /* actually |= */ |
723 | } |
2126 | } |
724 | #endif |
|
|
725 | |
2127 | |
726 | { |
2128 | if (o_reify & EV__IOFDSET) |
727 | unsigned char o_events = anfd->events; |
|
|
728 | unsigned char o_reify = anfd->reify; |
|
|
729 | |
|
|
730 | anfd->reify = 0; |
|
|
731 | anfd->events = events; |
|
|
732 | |
|
|
733 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
734 | backend_modify (EV_A_ fd, o_events, events); |
2129 | backend_modify (EV_A_ fd, o_events, anfd->events); |
735 | } |
|
|
736 | } |
2130 | } |
737 | |
2131 | |
738 | fdchangecnt = 0; |
2132 | fdchangecnt = 0; |
739 | } |
2133 | } |
740 | |
2134 | |
|
|
2135 | /* something about the given fd changed */ |
741 | void inline_size |
2136 | inline_size |
|
|
2137 | void |
742 | fd_change (EV_P_ int fd, int flags) |
2138 | fd_change (EV_P_ int fd, int flags) |
743 | { |
2139 | { |
744 | unsigned char reify = anfds [fd].reify; |
2140 | unsigned char reify = anfds [fd].reify; |
745 | anfds [fd].reify |= flags; |
2141 | anfds [fd].reify |= flags; |
746 | |
2142 | |
… | |
… | |
750 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2146 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
751 | fdchanges [fdchangecnt - 1] = fd; |
2147 | fdchanges [fdchangecnt - 1] = fd; |
752 | } |
2148 | } |
753 | } |
2149 | } |
754 | |
2150 | |
755 | void inline_speed |
2151 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
2152 | inline_speed ecb_cold void |
756 | fd_kill (EV_P_ int fd) |
2153 | fd_kill (EV_P_ int fd) |
757 | { |
2154 | { |
758 | ev_io *w; |
2155 | ev_io *w; |
759 | |
2156 | |
760 | while ((w = (ev_io *)anfds [fd].head)) |
2157 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
762 | ev_io_stop (EV_A_ w); |
2159 | ev_io_stop (EV_A_ w); |
763 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2160 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
764 | } |
2161 | } |
765 | } |
2162 | } |
766 | |
2163 | |
767 | int inline_size |
2164 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
2165 | inline_size ecb_cold int |
768 | fd_valid (int fd) |
2166 | fd_valid (int fd) |
769 | { |
2167 | { |
770 | #ifdef _WIN32 |
2168 | #ifdef _WIN32 |
771 | return _get_osfhandle (fd) != -1; |
2169 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
772 | #else |
2170 | #else |
773 | return fcntl (fd, F_GETFD) != -1; |
2171 | return fcntl (fd, F_GETFD) != -1; |
774 | #endif |
2172 | #endif |
775 | } |
2173 | } |
776 | |
2174 | |
777 | /* called on EBADF to verify fds */ |
2175 | /* called on EBADF to verify fds */ |
778 | static void noinline |
2176 | noinline ecb_cold |
|
|
2177 | static void |
779 | fd_ebadf (EV_P) |
2178 | fd_ebadf (EV_P) |
780 | { |
2179 | { |
781 | int fd; |
2180 | int fd; |
782 | |
2181 | |
783 | for (fd = 0; fd < anfdmax; ++fd) |
2182 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
785 | if (!fd_valid (fd) && errno == EBADF) |
2184 | if (!fd_valid (fd) && errno == EBADF) |
786 | fd_kill (EV_A_ fd); |
2185 | fd_kill (EV_A_ fd); |
787 | } |
2186 | } |
788 | |
2187 | |
789 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2188 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
790 | static void noinline |
2189 | noinline ecb_cold |
|
|
2190 | static void |
791 | fd_enomem (EV_P) |
2191 | fd_enomem (EV_P) |
792 | { |
2192 | { |
793 | int fd; |
2193 | int fd; |
794 | |
2194 | |
795 | for (fd = anfdmax; fd--; ) |
2195 | for (fd = anfdmax; fd--; ) |
796 | if (anfds [fd].events) |
2196 | if (anfds [fd].events) |
797 | { |
2197 | { |
798 | fd_kill (EV_A_ fd); |
2198 | fd_kill (EV_A_ fd); |
799 | return; |
2199 | break; |
800 | } |
2200 | } |
801 | } |
2201 | } |
802 | |
2202 | |
803 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2203 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
804 | static void noinline |
2204 | noinline |
|
|
2205 | static void |
805 | fd_rearm_all (EV_P) |
2206 | fd_rearm_all (EV_P) |
806 | { |
2207 | { |
807 | int fd; |
2208 | int fd; |
808 | |
2209 | |
809 | for (fd = 0; fd < anfdmax; ++fd) |
2210 | for (fd = 0; fd < anfdmax; ++fd) |
810 | if (anfds [fd].events) |
2211 | if (anfds [fd].events) |
811 | { |
2212 | { |
812 | anfds [fd].events = 0; |
2213 | anfds [fd].events = 0; |
|
|
2214 | anfds [fd].emask = 0; |
813 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
2215 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
814 | } |
2216 | } |
815 | } |
2217 | } |
816 | |
2218 | |
|
|
2219 | /* used to prepare libev internal fd's */ |
|
|
2220 | /* this is not fork-safe */ |
|
|
2221 | inline_speed void |
|
|
2222 | fd_intern (int fd) |
|
|
2223 | { |
|
|
2224 | #ifdef _WIN32 |
|
|
2225 | unsigned long arg = 1; |
|
|
2226 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
2227 | #else |
|
|
2228 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
2229 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
2230 | #endif |
|
|
2231 | } |
|
|
2232 | |
817 | /*****************************************************************************/ |
2233 | /*****************************************************************************/ |
818 | |
2234 | |
819 | /* |
2235 | /* |
820 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2236 | * the heap functions want a real array index. array index 0 is guaranteed to not |
821 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2237 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
822 | * the branching factor of the d-tree. |
2238 | * the branching factor of the d-tree. |
823 | */ |
2239 | */ |
824 | |
2240 | |
825 | /* |
2241 | /* |
… | |
… | |
834 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
2250 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
835 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
2251 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
836 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
2252 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
837 | |
2253 | |
838 | /* away from the root */ |
2254 | /* away from the root */ |
839 | void inline_speed |
2255 | inline_speed void |
840 | downheap (ANHE *heap, int N, int k) |
2256 | downheap (ANHE *heap, int N, int k) |
841 | { |
2257 | { |
842 | ANHE he = heap [k]; |
2258 | ANHE he = heap [k]; |
843 | ANHE *E = heap + N + HEAP0; |
2259 | ANHE *E = heap + N + HEAP0; |
844 | |
2260 | |
… | |
… | |
884 | #define HEAP0 1 |
2300 | #define HEAP0 1 |
885 | #define HPARENT(k) ((k) >> 1) |
2301 | #define HPARENT(k) ((k) >> 1) |
886 | #define UPHEAP_DONE(p,k) (!(p)) |
2302 | #define UPHEAP_DONE(p,k) (!(p)) |
887 | |
2303 | |
888 | /* away from the root */ |
2304 | /* away from the root */ |
889 | void inline_speed |
2305 | inline_speed void |
890 | downheap (ANHE *heap, int N, int k) |
2306 | downheap (ANHE *heap, int N, int k) |
891 | { |
2307 | { |
892 | ANHE he = heap [k]; |
2308 | ANHE he = heap [k]; |
893 | |
2309 | |
894 | for (;;) |
2310 | for (;;) |
895 | { |
2311 | { |
896 | int c = k << 1; |
2312 | int c = k << 1; |
897 | |
2313 | |
898 | if (c > N + HEAP0 - 1) |
2314 | if (c >= N + HEAP0) |
899 | break; |
2315 | break; |
900 | |
2316 | |
901 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
2317 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
902 | ? 1 : 0; |
2318 | ? 1 : 0; |
903 | |
2319 | |
… | |
… | |
914 | ev_active (ANHE_w (he)) = k; |
2330 | ev_active (ANHE_w (he)) = k; |
915 | } |
2331 | } |
916 | #endif |
2332 | #endif |
917 | |
2333 | |
918 | /* towards the root */ |
2334 | /* towards the root */ |
919 | void inline_speed |
2335 | inline_speed void |
920 | upheap (ANHE *heap, int k) |
2336 | upheap (ANHE *heap, int k) |
921 | { |
2337 | { |
922 | ANHE he = heap [k]; |
2338 | ANHE he = heap [k]; |
923 | |
2339 | |
924 | for (;;) |
2340 | for (;;) |
… | |
… | |
935 | |
2351 | |
936 | heap [k] = he; |
2352 | heap [k] = he; |
937 | ev_active (ANHE_w (he)) = k; |
2353 | ev_active (ANHE_w (he)) = k; |
938 | } |
2354 | } |
939 | |
2355 | |
940 | void inline_size |
2356 | /* move an element suitably so it is in a correct place */ |
|
|
2357 | inline_size void |
941 | adjustheap (ANHE *heap, int N, int k) |
2358 | adjustheap (ANHE *heap, int N, int k) |
942 | { |
2359 | { |
943 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
2360 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
944 | upheap (heap, k); |
2361 | upheap (heap, k); |
945 | else |
2362 | else |
946 | downheap (heap, N, k); |
2363 | downheap (heap, N, k); |
947 | } |
2364 | } |
948 | |
2365 | |
949 | /* rebuild the heap: this function is used only once and executed rarely */ |
2366 | /* rebuild the heap: this function is used only once and executed rarely */ |
950 | void inline_size |
2367 | inline_size void |
951 | reheap (ANHE *heap, int N) |
2368 | reheap (ANHE *heap, int N) |
952 | { |
2369 | { |
953 | int i; |
2370 | int i; |
954 | |
2371 | |
955 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
2372 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
958 | upheap (heap, i + HEAP0); |
2375 | upheap (heap, i + HEAP0); |
959 | } |
2376 | } |
960 | |
2377 | |
961 | /*****************************************************************************/ |
2378 | /*****************************************************************************/ |
962 | |
2379 | |
|
|
2380 | /* associate signal watchers to a signal signal */ |
963 | typedef struct |
2381 | typedef struct |
964 | { |
2382 | { |
|
|
2383 | EV_ATOMIC_T pending; |
|
|
2384 | #if EV_MULTIPLICITY |
|
|
2385 | EV_P; |
|
|
2386 | #endif |
965 | WL head; |
2387 | WL head; |
966 | EV_ATOMIC_T gotsig; |
|
|
967 | } ANSIG; |
2388 | } ANSIG; |
968 | |
2389 | |
969 | static ANSIG *signals; |
2390 | static ANSIG signals [EV_NSIG - 1]; |
970 | static int signalmax; |
|
|
971 | |
|
|
972 | static EV_ATOMIC_T gotsig; |
|
|
973 | |
|
|
974 | void inline_size |
|
|
975 | signals_init (ANSIG *base, int count) |
|
|
976 | { |
|
|
977 | while (count--) |
|
|
978 | { |
|
|
979 | base->head = 0; |
|
|
980 | base->gotsig = 0; |
|
|
981 | |
|
|
982 | ++base; |
|
|
983 | } |
|
|
984 | } |
|
|
985 | |
2391 | |
986 | /*****************************************************************************/ |
2392 | /*****************************************************************************/ |
987 | |
2393 | |
988 | void inline_speed |
2394 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
989 | fd_intern (int fd) |
|
|
990 | { |
|
|
991 | #ifdef _WIN32 |
|
|
992 | unsigned long arg = 1; |
|
|
993 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
994 | #else |
|
|
995 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
996 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
997 | #endif |
|
|
998 | } |
|
|
999 | |
2395 | |
1000 | static void noinline |
2396 | noinline ecb_cold |
|
|
2397 | static void |
1001 | evpipe_init (EV_P) |
2398 | evpipe_init (EV_P) |
1002 | { |
2399 | { |
1003 | if (!ev_is_active (&pipeev)) |
2400 | if (!ev_is_active (&pipe_w)) |
|
|
2401 | { |
|
|
2402 | int fds [2]; |
|
|
2403 | |
|
|
2404 | # if EV_USE_EVENTFD |
|
|
2405 | fds [0] = -1; |
|
|
2406 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2407 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2408 | fds [1] = eventfd (0, 0); |
|
|
2409 | |
|
|
2410 | if (fds [1] < 0) |
|
|
2411 | # endif |
|
|
2412 | { |
|
|
2413 | while (pipe (fds)) |
|
|
2414 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2415 | |
|
|
2416 | fd_intern (fds [0]); |
|
|
2417 | } |
|
|
2418 | |
|
|
2419 | evpipe [0] = fds [0]; |
|
|
2420 | |
|
|
2421 | if (evpipe [1] < 0) |
|
|
2422 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2423 | else |
|
|
2424 | { |
|
|
2425 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2426 | /* so that evpipe_write can always rely on its value. */ |
|
|
2427 | /* this branch does not do anything sensible on windows, */ |
|
|
2428 | /* so must not be executed on windows */ |
|
|
2429 | |
|
|
2430 | dup2 (fds [1], evpipe [1]); |
|
|
2431 | close (fds [1]); |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | fd_intern (evpipe [1]); |
|
|
2435 | |
|
|
2436 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2437 | ev_io_start (EV_A_ &pipe_w); |
|
|
2438 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1004 | { |
2439 | } |
|
|
2440 | } |
|
|
2441 | |
|
|
2442 | inline_speed void |
|
|
2443 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2444 | { |
|
|
2445 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2446 | |
|
|
2447 | if (expect_true (*flag)) |
|
|
2448 | return; |
|
|
2449 | |
|
|
2450 | *flag = 1; |
|
|
2451 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2452 | |
|
|
2453 | pipe_write_skipped = 1; |
|
|
2454 | |
|
|
2455 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2456 | |
|
|
2457 | if (pipe_write_wanted) |
|
|
2458 | { |
|
|
2459 | int old_errno; |
|
|
2460 | |
|
|
2461 | pipe_write_skipped = 0; |
|
|
2462 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2463 | |
|
|
2464 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2465 | |
1005 | #if EV_USE_EVENTFD |
2466 | #if EV_USE_EVENTFD |
1006 | if ((evfd = eventfd (0, 0)) >= 0) |
2467 | if (evpipe [0] < 0) |
1007 | { |
2468 | { |
1008 | evpipe [0] = -1; |
2469 | uint64_t counter = 1; |
1009 | fd_intern (evfd); |
2470 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1010 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1011 | } |
2471 | } |
1012 | else |
2472 | else |
1013 | #endif |
2473 | #endif |
1014 | { |
2474 | { |
1015 | while (pipe (evpipe)) |
2475 | #ifdef _WIN32 |
1016 | syserr ("(libev) error creating signal/async pipe"); |
2476 | WSABUF buf; |
1017 | |
2477 | DWORD sent; |
1018 | fd_intern (evpipe [0]); |
2478 | buf.buf = &buf; |
1019 | fd_intern (evpipe [1]); |
2479 | buf.len = 1; |
1020 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
2480 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2481 | #else |
|
|
2482 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2483 | #endif |
1021 | } |
2484 | } |
1022 | |
2485 | |
1023 | ev_io_start (EV_A_ &pipeev); |
2486 | errno = old_errno; |
1024 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1025 | } |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | void inline_size |
|
|
1029 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1030 | { |
|
|
1031 | if (!*flag) |
|
|
1032 | { |
2487 | } |
1033 | int old_errno = errno; /* save errno because write might clobber it */ |
2488 | } |
1034 | |
2489 | |
1035 | *flag = 1; |
2490 | /* called whenever the libev signal pipe */ |
|
|
2491 | /* got some events (signal, async) */ |
|
|
2492 | static void |
|
|
2493 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
2494 | { |
|
|
2495 | int i; |
1036 | |
2496 | |
|
|
2497 | if (revents & EV_READ) |
|
|
2498 | { |
1037 | #if EV_USE_EVENTFD |
2499 | #if EV_USE_EVENTFD |
1038 | if (evfd >= 0) |
2500 | if (evpipe [0] < 0) |
1039 | { |
2501 | { |
1040 | uint64_t counter = 1; |
2502 | uint64_t counter; |
1041 | write (evfd, &counter, sizeof (uint64_t)); |
2503 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1042 | } |
2504 | } |
1043 | else |
2505 | else |
1044 | #endif |
2506 | #endif |
1045 | write (evpipe [1], &old_errno, 1); |
2507 | { |
1046 | |
|
|
1047 | errno = old_errno; |
|
|
1048 | } |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | static void |
|
|
1052 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1053 | { |
|
|
1054 | #if EV_USE_EVENTFD |
|
|
1055 | if (evfd >= 0) |
|
|
1056 | { |
|
|
1057 | uint64_t counter; |
|
|
1058 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1059 | } |
|
|
1060 | else |
|
|
1061 | #endif |
|
|
1062 | { |
|
|
1063 | char dummy; |
2508 | char dummy[4]; |
|
|
2509 | #ifdef _WIN32 |
|
|
2510 | WSABUF buf; |
|
|
2511 | DWORD recvd; |
|
|
2512 | DWORD flags = 0; |
|
|
2513 | buf.buf = dummy; |
|
|
2514 | buf.len = sizeof (dummy); |
|
|
2515 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2516 | #else |
1064 | read (evpipe [0], &dummy, 1); |
2517 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2518 | #endif |
|
|
2519 | } |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | pipe_write_skipped = 0; |
|
|
2523 | |
|
|
2524 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2525 | |
|
|
2526 | #if EV_SIGNAL_ENABLE |
|
|
2527 | if (sig_pending) |
1065 | } |
2528 | { |
|
|
2529 | sig_pending = 0; |
1066 | |
2530 | |
1067 | if (gotsig && ev_is_default_loop (EV_A)) |
2531 | ECB_MEMORY_FENCE; |
1068 | { |
|
|
1069 | int signum; |
|
|
1070 | gotsig = 0; |
|
|
1071 | |
2532 | |
1072 | for (signum = signalmax; signum--; ) |
2533 | for (i = EV_NSIG - 1; i--; ) |
1073 | if (signals [signum].gotsig) |
2534 | if (expect_false (signals [i].pending)) |
1074 | ev_feed_signal_event (EV_A_ signum + 1); |
2535 | ev_feed_signal_event (EV_A_ i + 1); |
1075 | } |
2536 | } |
|
|
2537 | #endif |
1076 | |
2538 | |
1077 | #if EV_ASYNC_ENABLE |
2539 | #if EV_ASYNC_ENABLE |
1078 | if (gotasync) |
2540 | if (async_pending) |
1079 | { |
2541 | { |
1080 | int i; |
2542 | async_pending = 0; |
1081 | gotasync = 0; |
2543 | |
|
|
2544 | ECB_MEMORY_FENCE; |
1082 | |
2545 | |
1083 | for (i = asynccnt; i--; ) |
2546 | for (i = asynccnt; i--; ) |
1084 | if (asyncs [i]->sent) |
2547 | if (asyncs [i]->sent) |
1085 | { |
2548 | { |
1086 | asyncs [i]->sent = 0; |
2549 | asyncs [i]->sent = 0; |
|
|
2550 | ECB_MEMORY_FENCE_RELEASE; |
1087 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2551 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1088 | } |
2552 | } |
1089 | } |
2553 | } |
1090 | #endif |
2554 | #endif |
1091 | } |
2555 | } |
1092 | |
2556 | |
1093 | /*****************************************************************************/ |
2557 | /*****************************************************************************/ |
1094 | |
2558 | |
|
|
2559 | void |
|
|
2560 | ev_feed_signal (int signum) EV_THROW |
|
|
2561 | { |
|
|
2562 | #if EV_MULTIPLICITY |
|
|
2563 | EV_P; |
|
|
2564 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2565 | EV_A = signals [signum - 1].loop; |
|
|
2566 | |
|
|
2567 | if (!EV_A) |
|
|
2568 | return; |
|
|
2569 | #endif |
|
|
2570 | |
|
|
2571 | signals [signum - 1].pending = 1; |
|
|
2572 | evpipe_write (EV_A_ &sig_pending); |
|
|
2573 | } |
|
|
2574 | |
1095 | static void |
2575 | static void |
1096 | ev_sighandler (int signum) |
2576 | ev_sighandler (int signum) |
1097 | { |
2577 | { |
|
|
2578 | #ifdef _WIN32 |
|
|
2579 | signal (signum, ev_sighandler); |
|
|
2580 | #endif |
|
|
2581 | |
|
|
2582 | ev_feed_signal (signum); |
|
|
2583 | } |
|
|
2584 | |
|
|
2585 | noinline |
|
|
2586 | void |
|
|
2587 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
|
|
2588 | { |
|
|
2589 | WL w; |
|
|
2590 | |
|
|
2591 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
|
|
2592 | return; |
|
|
2593 | |
|
|
2594 | --signum; |
|
|
2595 | |
1098 | #if EV_MULTIPLICITY |
2596 | #if EV_MULTIPLICITY |
1099 | struct ev_loop *loop = &default_loop_struct; |
2597 | /* it is permissible to try to feed a signal to the wrong loop */ |
1100 | #endif |
2598 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1101 | |
2599 | |
1102 | #if _WIN32 |
2600 | if (expect_false (signals [signum].loop != EV_A)) |
1103 | signal (signum, ev_sighandler); |
|
|
1104 | #endif |
|
|
1105 | |
|
|
1106 | signals [signum - 1].gotsig = 1; |
|
|
1107 | evpipe_write (EV_A_ &gotsig); |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | void noinline |
|
|
1111 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1112 | { |
|
|
1113 | WL w; |
|
|
1114 | |
|
|
1115 | #if EV_MULTIPLICITY |
|
|
1116 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1117 | #endif |
|
|
1118 | |
|
|
1119 | --signum; |
|
|
1120 | |
|
|
1121 | if (signum < 0 || signum >= signalmax) |
|
|
1122 | return; |
2601 | return; |
|
|
2602 | #endif |
1123 | |
2603 | |
1124 | signals [signum].gotsig = 0; |
2604 | signals [signum].pending = 0; |
|
|
2605 | ECB_MEMORY_FENCE_RELEASE; |
1125 | |
2606 | |
1126 | for (w = signals [signum].head; w; w = w->next) |
2607 | for (w = signals [signum].head; w; w = w->next) |
1127 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2608 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1128 | } |
2609 | } |
1129 | |
2610 | |
|
|
2611 | #if EV_USE_SIGNALFD |
|
|
2612 | static void |
|
|
2613 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2614 | { |
|
|
2615 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2616 | |
|
|
2617 | for (;;) |
|
|
2618 | { |
|
|
2619 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2620 | |
|
|
2621 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2622 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2623 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2624 | |
|
|
2625 | if (res < (ssize_t)sizeof (si)) |
|
|
2626 | break; |
|
|
2627 | } |
|
|
2628 | } |
|
|
2629 | #endif |
|
|
2630 | |
|
|
2631 | #endif |
|
|
2632 | |
1130 | /*****************************************************************************/ |
2633 | /*****************************************************************************/ |
1131 | |
2634 | |
|
|
2635 | #if EV_CHILD_ENABLE |
1132 | static WL childs [EV_PID_HASHSIZE]; |
2636 | static WL childs [EV_PID_HASHSIZE]; |
1133 | |
|
|
1134 | #ifndef _WIN32 |
|
|
1135 | |
2637 | |
1136 | static ev_signal childev; |
2638 | static ev_signal childev; |
1137 | |
2639 | |
1138 | #ifndef WIFCONTINUED |
2640 | #ifndef WIFCONTINUED |
1139 | # define WIFCONTINUED(status) 0 |
2641 | # define WIFCONTINUED(status) 0 |
1140 | #endif |
2642 | #endif |
1141 | |
2643 | |
1142 | void inline_speed |
2644 | /* handle a single child status event */ |
|
|
2645 | inline_speed void |
1143 | child_reap (EV_P_ int chain, int pid, int status) |
2646 | child_reap (EV_P_ int chain, int pid, int status) |
1144 | { |
2647 | { |
1145 | ev_child *w; |
2648 | ev_child *w; |
1146 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2649 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1147 | |
2650 | |
1148 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2651 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1149 | { |
2652 | { |
1150 | if ((w->pid == pid || !w->pid) |
2653 | if ((w->pid == pid || !w->pid) |
1151 | && (!traced || (w->flags & 1))) |
2654 | && (!traced || (w->flags & 1))) |
1152 | { |
2655 | { |
1153 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2656 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1160 | |
2663 | |
1161 | #ifndef WCONTINUED |
2664 | #ifndef WCONTINUED |
1162 | # define WCONTINUED 0 |
2665 | # define WCONTINUED 0 |
1163 | #endif |
2666 | #endif |
1164 | |
2667 | |
|
|
2668 | /* called on sigchld etc., calls waitpid */ |
1165 | static void |
2669 | static void |
1166 | childcb (EV_P_ ev_signal *sw, int revents) |
2670 | childcb (EV_P_ ev_signal *sw, int revents) |
1167 | { |
2671 | { |
1168 | int pid, status; |
2672 | int pid, status; |
1169 | |
2673 | |
… | |
… | |
1177 | /* make sure we are called again until all children have been reaped */ |
2681 | /* make sure we are called again until all children have been reaped */ |
1178 | /* we need to do it this way so that the callback gets called before we continue */ |
2682 | /* we need to do it this way so that the callback gets called before we continue */ |
1179 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2683 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1180 | |
2684 | |
1181 | child_reap (EV_A_ pid, pid, status); |
2685 | child_reap (EV_A_ pid, pid, status); |
1182 | if (EV_PID_HASHSIZE > 1) |
2686 | if ((EV_PID_HASHSIZE) > 1) |
1183 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2687 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1184 | } |
2688 | } |
1185 | |
2689 | |
1186 | #endif |
2690 | #endif |
1187 | |
2691 | |
1188 | /*****************************************************************************/ |
2692 | /*****************************************************************************/ |
1189 | |
2693 | |
|
|
2694 | #if EV_USE_IOCP |
|
|
2695 | # include "ev_iocp.c" |
|
|
2696 | #endif |
1190 | #if EV_USE_PORT |
2697 | #if EV_USE_PORT |
1191 | # include "ev_port.c" |
2698 | # include "ev_port.c" |
1192 | #endif |
2699 | #endif |
1193 | #if EV_USE_KQUEUE |
2700 | #if EV_USE_KQUEUE |
1194 | # include "ev_kqueue.c" |
2701 | # include "ev_kqueue.c" |
… | |
… | |
1201 | #endif |
2708 | #endif |
1202 | #if EV_USE_SELECT |
2709 | #if EV_USE_SELECT |
1203 | # include "ev_select.c" |
2710 | # include "ev_select.c" |
1204 | #endif |
2711 | #endif |
1205 | |
2712 | |
1206 | int |
2713 | ecb_cold int |
1207 | ev_version_major (void) |
2714 | ev_version_major (void) EV_THROW |
1208 | { |
2715 | { |
1209 | return EV_VERSION_MAJOR; |
2716 | return EV_VERSION_MAJOR; |
1210 | } |
2717 | } |
1211 | |
2718 | |
1212 | int |
2719 | ecb_cold int |
1213 | ev_version_minor (void) |
2720 | ev_version_minor (void) EV_THROW |
1214 | { |
2721 | { |
1215 | return EV_VERSION_MINOR; |
2722 | return EV_VERSION_MINOR; |
1216 | } |
2723 | } |
1217 | |
2724 | |
1218 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2725 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1219 | int inline_size |
2726 | inline_size ecb_cold int |
1220 | enable_secure (void) |
2727 | enable_secure (void) |
1221 | { |
2728 | { |
1222 | #ifdef _WIN32 |
2729 | #ifdef _WIN32 |
1223 | return 0; |
2730 | return 0; |
1224 | #else |
2731 | #else |
1225 | return getuid () != geteuid () |
2732 | return getuid () != geteuid () |
1226 | || getgid () != getegid (); |
2733 | || getgid () != getegid (); |
1227 | #endif |
2734 | #endif |
1228 | } |
2735 | } |
1229 | |
2736 | |
|
|
2737 | ecb_cold |
1230 | unsigned int |
2738 | unsigned int |
1231 | ev_supported_backends (void) |
2739 | ev_supported_backends (void) EV_THROW |
1232 | { |
2740 | { |
1233 | unsigned int flags = 0; |
2741 | unsigned int flags = 0; |
1234 | |
2742 | |
1235 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2743 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1236 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2744 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1239 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2747 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1240 | |
2748 | |
1241 | return flags; |
2749 | return flags; |
1242 | } |
2750 | } |
1243 | |
2751 | |
|
|
2752 | ecb_cold |
1244 | unsigned int |
2753 | unsigned int |
1245 | ev_recommended_backends (void) |
2754 | ev_recommended_backends (void) EV_THROW |
1246 | { |
2755 | { |
1247 | unsigned int flags = ev_supported_backends (); |
2756 | unsigned int flags = ev_supported_backends (); |
1248 | |
2757 | |
1249 | #ifndef __NetBSD__ |
2758 | #ifndef __NetBSD__ |
1250 | /* kqueue is borked on everything but netbsd apparently */ |
2759 | /* kqueue is borked on everything but netbsd apparently */ |
1251 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2760 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1252 | flags &= ~EVBACKEND_KQUEUE; |
2761 | flags &= ~EVBACKEND_KQUEUE; |
1253 | #endif |
2762 | #endif |
1254 | #ifdef __APPLE__ |
2763 | #ifdef __APPLE__ |
1255 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2764 | /* only select works correctly on that "unix-certified" platform */ |
1256 | flags &= ~EVBACKEND_POLL; |
2765 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2766 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2767 | #endif |
|
|
2768 | #ifdef __FreeBSD__ |
|
|
2769 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1257 | #endif |
2770 | #endif |
1258 | |
2771 | |
1259 | return flags; |
2772 | return flags; |
1260 | } |
2773 | } |
1261 | |
2774 | |
|
|
2775 | ecb_cold |
1262 | unsigned int |
2776 | unsigned int |
1263 | ev_embeddable_backends (void) |
2777 | ev_embeddable_backends (void) EV_THROW |
1264 | { |
2778 | { |
1265 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2779 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1266 | |
2780 | |
1267 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2781 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1268 | /* please fix it and tell me how to detect the fix */ |
2782 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1269 | flags &= ~EVBACKEND_EPOLL; |
2783 | flags &= ~EVBACKEND_EPOLL; |
1270 | |
2784 | |
1271 | return flags; |
2785 | return flags; |
1272 | } |
2786 | } |
1273 | |
2787 | |
1274 | unsigned int |
2788 | unsigned int |
1275 | ev_backend (EV_P) |
2789 | ev_backend (EV_P) EV_THROW |
1276 | { |
2790 | { |
1277 | return backend; |
2791 | return backend; |
1278 | } |
2792 | } |
1279 | |
2793 | |
|
|
2794 | #if EV_FEATURE_API |
1280 | unsigned int |
2795 | unsigned int |
1281 | ev_loop_count (EV_P) |
2796 | ev_iteration (EV_P) EV_THROW |
1282 | { |
2797 | { |
1283 | return loop_count; |
2798 | return loop_count; |
1284 | } |
2799 | } |
1285 | |
2800 | |
|
|
2801 | unsigned int |
|
|
2802 | ev_depth (EV_P) EV_THROW |
|
|
2803 | { |
|
|
2804 | return loop_depth; |
|
|
2805 | } |
|
|
2806 | |
1286 | void |
2807 | void |
1287 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2808 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1288 | { |
2809 | { |
1289 | io_blocktime = interval; |
2810 | io_blocktime = interval; |
1290 | } |
2811 | } |
1291 | |
2812 | |
1292 | void |
2813 | void |
1293 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2814 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1294 | { |
2815 | { |
1295 | timeout_blocktime = interval; |
2816 | timeout_blocktime = interval; |
1296 | } |
2817 | } |
1297 | |
2818 | |
1298 | static void noinline |
2819 | void |
|
|
2820 | ev_set_userdata (EV_P_ void *data) EV_THROW |
|
|
2821 | { |
|
|
2822 | userdata = data; |
|
|
2823 | } |
|
|
2824 | |
|
|
2825 | void * |
|
|
2826 | ev_userdata (EV_P) EV_THROW |
|
|
2827 | { |
|
|
2828 | return userdata; |
|
|
2829 | } |
|
|
2830 | |
|
|
2831 | void |
|
|
2832 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
|
|
2833 | { |
|
|
2834 | invoke_cb = invoke_pending_cb; |
|
|
2835 | } |
|
|
2836 | |
|
|
2837 | void |
|
|
2838 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
|
|
2839 | { |
|
|
2840 | release_cb = release; |
|
|
2841 | acquire_cb = acquire; |
|
|
2842 | } |
|
|
2843 | #endif |
|
|
2844 | |
|
|
2845 | /* initialise a loop structure, must be zero-initialised */ |
|
|
2846 | noinline ecb_cold |
|
|
2847 | static void |
1299 | loop_init (EV_P_ unsigned int flags) |
2848 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1300 | { |
2849 | { |
1301 | if (!backend) |
2850 | if (!backend) |
1302 | { |
2851 | { |
|
|
2852 | origflags = flags; |
|
|
2853 | |
|
|
2854 | #if EV_USE_REALTIME |
|
|
2855 | if (!have_realtime) |
|
|
2856 | { |
|
|
2857 | struct timespec ts; |
|
|
2858 | |
|
|
2859 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2860 | have_realtime = 1; |
|
|
2861 | } |
|
|
2862 | #endif |
|
|
2863 | |
1303 | #if EV_USE_MONOTONIC |
2864 | #if EV_USE_MONOTONIC |
|
|
2865 | if (!have_monotonic) |
1304 | { |
2866 | { |
1305 | struct timespec ts; |
2867 | struct timespec ts; |
|
|
2868 | |
1306 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2869 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1307 | have_monotonic = 1; |
2870 | have_monotonic = 1; |
1308 | } |
2871 | } |
1309 | #endif |
|
|
1310 | |
|
|
1311 | ev_rt_now = ev_time (); |
|
|
1312 | mn_now = get_clock (); |
|
|
1313 | now_floor = mn_now; |
|
|
1314 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1315 | |
|
|
1316 | io_blocktime = 0.; |
|
|
1317 | timeout_blocktime = 0.; |
|
|
1318 | backend = 0; |
|
|
1319 | backend_fd = -1; |
|
|
1320 | gotasync = 0; |
|
|
1321 | #if EV_USE_INOTIFY |
|
|
1322 | fs_fd = -2; |
|
|
1323 | #endif |
2872 | #endif |
1324 | |
2873 | |
1325 | /* pid check not overridable via env */ |
2874 | /* pid check not overridable via env */ |
1326 | #ifndef _WIN32 |
2875 | #ifndef _WIN32 |
1327 | if (flags & EVFLAG_FORKCHECK) |
2876 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1331 | if (!(flags & EVFLAG_NOENV) |
2880 | if (!(flags & EVFLAG_NOENV) |
1332 | && !enable_secure () |
2881 | && !enable_secure () |
1333 | && getenv ("LIBEV_FLAGS")) |
2882 | && getenv ("LIBEV_FLAGS")) |
1334 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2883 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1335 | |
2884 | |
1336 | if (!(flags & 0x0000ffffU)) |
2885 | ev_rt_now = ev_time (); |
|
|
2886 | mn_now = get_clock (); |
|
|
2887 | now_floor = mn_now; |
|
|
2888 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2889 | #if EV_FEATURE_API |
|
|
2890 | invoke_cb = ev_invoke_pending; |
|
|
2891 | #endif |
|
|
2892 | |
|
|
2893 | io_blocktime = 0.; |
|
|
2894 | timeout_blocktime = 0.; |
|
|
2895 | backend = 0; |
|
|
2896 | backend_fd = -1; |
|
|
2897 | sig_pending = 0; |
|
|
2898 | #if EV_ASYNC_ENABLE |
|
|
2899 | async_pending = 0; |
|
|
2900 | #endif |
|
|
2901 | pipe_write_skipped = 0; |
|
|
2902 | pipe_write_wanted = 0; |
|
|
2903 | evpipe [0] = -1; |
|
|
2904 | evpipe [1] = -1; |
|
|
2905 | #if EV_USE_INOTIFY |
|
|
2906 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2907 | #endif |
|
|
2908 | #if EV_USE_SIGNALFD |
|
|
2909 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2910 | #endif |
|
|
2911 | |
|
|
2912 | if (!(flags & EVBACKEND_MASK)) |
1337 | flags |= ev_recommended_backends (); |
2913 | flags |= ev_recommended_backends (); |
1338 | |
2914 | |
|
|
2915 | #if EV_USE_IOCP |
|
|
2916 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2917 | #endif |
1339 | #if EV_USE_PORT |
2918 | #if EV_USE_PORT |
1340 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2919 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1341 | #endif |
2920 | #endif |
1342 | #if EV_USE_KQUEUE |
2921 | #if EV_USE_KQUEUE |
1343 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2922 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1350 | #endif |
2929 | #endif |
1351 | #if EV_USE_SELECT |
2930 | #if EV_USE_SELECT |
1352 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2931 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1353 | #endif |
2932 | #endif |
1354 | |
2933 | |
|
|
2934 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2935 | |
|
|
2936 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1355 | ev_init (&pipeev, pipecb); |
2937 | ev_init (&pipe_w, pipecb); |
1356 | ev_set_priority (&pipeev, EV_MAXPRI); |
2938 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2939 | #endif |
1357 | } |
2940 | } |
1358 | } |
2941 | } |
1359 | |
2942 | |
1360 | static void noinline |
2943 | /* free up a loop structure */ |
|
|
2944 | ecb_cold |
|
|
2945 | void |
1361 | loop_destroy (EV_P) |
2946 | ev_loop_destroy (EV_P) |
1362 | { |
2947 | { |
1363 | int i; |
2948 | int i; |
1364 | |
2949 | |
|
|
2950 | #if EV_MULTIPLICITY |
|
|
2951 | /* mimic free (0) */ |
|
|
2952 | if (!EV_A) |
|
|
2953 | return; |
|
|
2954 | #endif |
|
|
2955 | |
|
|
2956 | #if EV_CLEANUP_ENABLE |
|
|
2957 | /* queue cleanup watchers (and execute them) */ |
|
|
2958 | if (expect_false (cleanupcnt)) |
|
|
2959 | { |
|
|
2960 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2961 | EV_INVOKE_PENDING; |
|
|
2962 | } |
|
|
2963 | #endif |
|
|
2964 | |
|
|
2965 | #if EV_CHILD_ENABLE |
|
|
2966 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2967 | { |
|
|
2968 | ev_ref (EV_A); /* child watcher */ |
|
|
2969 | ev_signal_stop (EV_A_ &childev); |
|
|
2970 | } |
|
|
2971 | #endif |
|
|
2972 | |
1365 | if (ev_is_active (&pipeev)) |
2973 | if (ev_is_active (&pipe_w)) |
1366 | { |
2974 | { |
1367 | ev_ref (EV_A); /* signal watcher */ |
2975 | /*ev_ref (EV_A);*/ |
1368 | ev_io_stop (EV_A_ &pipeev); |
2976 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1369 | |
2977 | |
|
|
2978 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2979 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2980 | } |
|
|
2981 | |
1370 | #if EV_USE_EVENTFD |
2982 | #if EV_USE_SIGNALFD |
1371 | if (evfd >= 0) |
2983 | if (ev_is_active (&sigfd_w)) |
1372 | close (evfd); |
2984 | close (sigfd); |
1373 | #endif |
2985 | #endif |
1374 | |
|
|
1375 | if (evpipe [0] >= 0) |
|
|
1376 | { |
|
|
1377 | close (evpipe [0]); |
|
|
1378 | close (evpipe [1]); |
|
|
1379 | } |
|
|
1380 | } |
|
|
1381 | |
2986 | |
1382 | #if EV_USE_INOTIFY |
2987 | #if EV_USE_INOTIFY |
1383 | if (fs_fd >= 0) |
2988 | if (fs_fd >= 0) |
1384 | close (fs_fd); |
2989 | close (fs_fd); |
1385 | #endif |
2990 | #endif |
1386 | |
2991 | |
1387 | if (backend_fd >= 0) |
2992 | if (backend_fd >= 0) |
1388 | close (backend_fd); |
2993 | close (backend_fd); |
1389 | |
2994 | |
|
|
2995 | #if EV_USE_IOCP |
|
|
2996 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2997 | #endif |
1390 | #if EV_USE_PORT |
2998 | #if EV_USE_PORT |
1391 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2999 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1392 | #endif |
3000 | #endif |
1393 | #if EV_USE_KQUEUE |
3001 | #if EV_USE_KQUEUE |
1394 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3002 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1409 | #if EV_IDLE_ENABLE |
3017 | #if EV_IDLE_ENABLE |
1410 | array_free (idle, [i]); |
3018 | array_free (idle, [i]); |
1411 | #endif |
3019 | #endif |
1412 | } |
3020 | } |
1413 | |
3021 | |
1414 | ev_free (anfds); anfdmax = 0; |
3022 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1415 | |
3023 | |
1416 | /* have to use the microsoft-never-gets-it-right macro */ |
3024 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
3025 | array_free (rfeed, EMPTY); |
1417 | array_free (fdchange, EMPTY); |
3026 | array_free (fdchange, EMPTY); |
1418 | array_free (timer, EMPTY); |
3027 | array_free (timer, EMPTY); |
1419 | #if EV_PERIODIC_ENABLE |
3028 | #if EV_PERIODIC_ENABLE |
1420 | array_free (periodic, EMPTY); |
3029 | array_free (periodic, EMPTY); |
1421 | #endif |
3030 | #endif |
1422 | #if EV_FORK_ENABLE |
3031 | #if EV_FORK_ENABLE |
1423 | array_free (fork, EMPTY); |
3032 | array_free (fork, EMPTY); |
1424 | #endif |
3033 | #endif |
|
|
3034 | #if EV_CLEANUP_ENABLE |
|
|
3035 | array_free (cleanup, EMPTY); |
|
|
3036 | #endif |
1425 | array_free (prepare, EMPTY); |
3037 | array_free (prepare, EMPTY); |
1426 | array_free (check, EMPTY); |
3038 | array_free (check, EMPTY); |
1427 | #if EV_ASYNC_ENABLE |
3039 | #if EV_ASYNC_ENABLE |
1428 | array_free (async, EMPTY); |
3040 | array_free (async, EMPTY); |
1429 | #endif |
3041 | #endif |
1430 | |
3042 | |
1431 | backend = 0; |
3043 | backend = 0; |
|
|
3044 | |
|
|
3045 | #if EV_MULTIPLICITY |
|
|
3046 | if (ev_is_default_loop (EV_A)) |
|
|
3047 | #endif |
|
|
3048 | ev_default_loop_ptr = 0; |
|
|
3049 | #if EV_MULTIPLICITY |
|
|
3050 | else |
|
|
3051 | ev_free (EV_A); |
|
|
3052 | #endif |
1432 | } |
3053 | } |
1433 | |
3054 | |
1434 | #if EV_USE_INOTIFY |
3055 | #if EV_USE_INOTIFY |
1435 | void inline_size infy_fork (EV_P); |
3056 | inline_size void infy_fork (EV_P); |
1436 | #endif |
3057 | #endif |
1437 | |
3058 | |
1438 | void inline_size |
3059 | inline_size void |
1439 | loop_fork (EV_P) |
3060 | loop_fork (EV_P) |
1440 | { |
3061 | { |
1441 | #if EV_USE_PORT |
3062 | #if EV_USE_PORT |
1442 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3063 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1443 | #endif |
3064 | #endif |
… | |
… | |
1449 | #endif |
3070 | #endif |
1450 | #if EV_USE_INOTIFY |
3071 | #if EV_USE_INOTIFY |
1451 | infy_fork (EV_A); |
3072 | infy_fork (EV_A); |
1452 | #endif |
3073 | #endif |
1453 | |
3074 | |
1454 | if (ev_is_active (&pipeev)) |
3075 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
3076 | if (ev_is_active (&pipe_w) && postfork != 2) |
1455 | { |
3077 | { |
1456 | /* this "locks" the handlers against writing to the pipe */ |
3078 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1457 | /* while we modify the fd vars */ |
|
|
1458 | gotsig = 1; |
|
|
1459 | #if EV_ASYNC_ENABLE |
|
|
1460 | gotasync = 1; |
|
|
1461 | #endif |
|
|
1462 | |
3079 | |
1463 | ev_ref (EV_A); |
3080 | ev_ref (EV_A); |
1464 | ev_io_stop (EV_A_ &pipeev); |
3081 | ev_io_stop (EV_A_ &pipe_w); |
1465 | |
|
|
1466 | #if EV_USE_EVENTFD |
|
|
1467 | if (evfd >= 0) |
|
|
1468 | close (evfd); |
|
|
1469 | #endif |
|
|
1470 | |
3082 | |
1471 | if (evpipe [0] >= 0) |
3083 | if (evpipe [0] >= 0) |
1472 | { |
3084 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1473 | close (evpipe [0]); |
|
|
1474 | close (evpipe [1]); |
|
|
1475 | } |
|
|
1476 | |
3085 | |
1477 | evpipe_init (EV_A); |
3086 | evpipe_init (EV_A); |
1478 | /* now iterate over everything, in case we missed something */ |
3087 | /* iterate over everything, in case we missed something before */ |
1479 | pipecb (EV_A_ &pipeev, EV_READ); |
3088 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1480 | } |
3089 | } |
|
|
3090 | #endif |
1481 | |
3091 | |
1482 | postfork = 0; |
3092 | postfork = 0; |
1483 | } |
3093 | } |
1484 | |
3094 | |
1485 | #if EV_MULTIPLICITY |
3095 | #if EV_MULTIPLICITY |
1486 | |
3096 | |
|
|
3097 | ecb_cold |
1487 | struct ev_loop * |
3098 | struct ev_loop * |
1488 | ev_loop_new (unsigned int flags) |
3099 | ev_loop_new (unsigned int flags) EV_THROW |
1489 | { |
3100 | { |
1490 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3101 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1491 | |
3102 | |
1492 | memset (loop, 0, sizeof (struct ev_loop)); |
3103 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1493 | |
|
|
1494 | loop_init (EV_A_ flags); |
3104 | loop_init (EV_A_ flags); |
1495 | |
3105 | |
1496 | if (ev_backend (EV_A)) |
3106 | if (ev_backend (EV_A)) |
1497 | return loop; |
3107 | return EV_A; |
1498 | |
3108 | |
|
|
3109 | ev_free (EV_A); |
1499 | return 0; |
3110 | return 0; |
1500 | } |
3111 | } |
1501 | |
3112 | |
1502 | void |
3113 | #endif /* multiplicity */ |
1503 | ev_loop_destroy (EV_P) |
|
|
1504 | { |
|
|
1505 | loop_destroy (EV_A); |
|
|
1506 | ev_free (loop); |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | void |
|
|
1510 | ev_loop_fork (EV_P) |
|
|
1511 | { |
|
|
1512 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1513 | } |
|
|
1514 | |
3114 | |
1515 | #if EV_VERIFY |
3115 | #if EV_VERIFY |
1516 | static void noinline |
3116 | noinline ecb_cold |
|
|
3117 | static void |
1517 | verify_watcher (EV_P_ W w) |
3118 | verify_watcher (EV_P_ W w) |
1518 | { |
3119 | { |
1519 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3120 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1520 | |
3121 | |
1521 | if (w->pending) |
3122 | if (w->pending) |
1522 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3123 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1523 | } |
3124 | } |
1524 | |
3125 | |
1525 | static void noinline |
3126 | noinline ecb_cold |
|
|
3127 | static void |
1526 | verify_heap (EV_P_ ANHE *heap, int N) |
3128 | verify_heap (EV_P_ ANHE *heap, int N) |
1527 | { |
3129 | { |
1528 | int i; |
3130 | int i; |
1529 | |
3131 | |
1530 | for (i = HEAP0; i < N + HEAP0; ++i) |
3132 | for (i = HEAP0; i < N + HEAP0; ++i) |
1531 | { |
3133 | { |
1532 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
3134 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1533 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
3135 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1534 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
3136 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1535 | |
3137 | |
1536 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3138 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1537 | } |
3139 | } |
1538 | } |
3140 | } |
1539 | |
3141 | |
1540 | static void noinline |
3142 | noinline ecb_cold |
|
|
3143 | static void |
1541 | array_verify (EV_P_ W *ws, int cnt) |
3144 | array_verify (EV_P_ W *ws, int cnt) |
1542 | { |
3145 | { |
1543 | while (cnt--) |
3146 | while (cnt--) |
1544 | { |
3147 | { |
1545 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3148 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1546 | verify_watcher (EV_A_ ws [cnt]); |
3149 | verify_watcher (EV_A_ ws [cnt]); |
1547 | } |
3150 | } |
1548 | } |
3151 | } |
1549 | #endif |
3152 | #endif |
1550 | |
3153 | |
1551 | void |
3154 | #if EV_FEATURE_API |
1552 | ev_loop_verify (EV_P) |
3155 | void ecb_cold |
|
|
3156 | ev_verify (EV_P) EV_THROW |
1553 | { |
3157 | { |
1554 | #if EV_VERIFY |
3158 | #if EV_VERIFY |
1555 | int i; |
3159 | int i; |
1556 | WL w; |
3160 | WL w, w2; |
1557 | |
3161 | |
1558 | assert (activecnt >= -1); |
3162 | assert (activecnt >= -1); |
1559 | |
3163 | |
1560 | assert (fdchangemax >= fdchangecnt); |
3164 | assert (fdchangemax >= fdchangecnt); |
1561 | for (i = 0; i < fdchangecnt; ++i) |
3165 | for (i = 0; i < fdchangecnt; ++i) |
1562 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
3166 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1563 | |
3167 | |
1564 | assert (anfdmax >= 0); |
3168 | assert (anfdmax >= 0); |
1565 | for (i = 0; i < anfdmax; ++i) |
3169 | for (i = 0; i < anfdmax; ++i) |
|
|
3170 | { |
|
|
3171 | int j = 0; |
|
|
3172 | |
1566 | for (w = anfds [i].head; w; w = w->next) |
3173 | for (w = w2 = anfds [i].head; w; w = w->next) |
1567 | { |
3174 | { |
1568 | verify_watcher (EV_A_ (W)w); |
3175 | verify_watcher (EV_A_ (W)w); |
|
|
3176 | |
|
|
3177 | if (j++ & 1) |
|
|
3178 | { |
|
|
3179 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3180 | w2 = w2->next; |
|
|
3181 | } |
|
|
3182 | |
1569 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
3183 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1570 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3184 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1571 | } |
3185 | } |
|
|
3186 | } |
1572 | |
3187 | |
1573 | assert (timermax >= timercnt); |
3188 | assert (timermax >= timercnt); |
1574 | verify_heap (EV_A_ timers, timercnt); |
3189 | verify_heap (EV_A_ timers, timercnt); |
1575 | |
3190 | |
1576 | #if EV_PERIODIC_ENABLE |
3191 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1591 | #if EV_FORK_ENABLE |
3206 | #if EV_FORK_ENABLE |
1592 | assert (forkmax >= forkcnt); |
3207 | assert (forkmax >= forkcnt); |
1593 | array_verify (EV_A_ (W *)forks, forkcnt); |
3208 | array_verify (EV_A_ (W *)forks, forkcnt); |
1594 | #endif |
3209 | #endif |
1595 | |
3210 | |
|
|
3211 | #if EV_CLEANUP_ENABLE |
|
|
3212 | assert (cleanupmax >= cleanupcnt); |
|
|
3213 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3214 | #endif |
|
|
3215 | |
1596 | #if EV_ASYNC_ENABLE |
3216 | #if EV_ASYNC_ENABLE |
1597 | assert (asyncmax >= asynccnt); |
3217 | assert (asyncmax >= asynccnt); |
1598 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3218 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1599 | #endif |
3219 | #endif |
1600 | |
3220 | |
|
|
3221 | #if EV_PREPARE_ENABLE |
1601 | assert (preparemax >= preparecnt); |
3222 | assert (preparemax >= preparecnt); |
1602 | array_verify (EV_A_ (W *)prepares, preparecnt); |
3223 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
3224 | #endif |
1603 | |
3225 | |
|
|
3226 | #if EV_CHECK_ENABLE |
1604 | assert (checkmax >= checkcnt); |
3227 | assert (checkmax >= checkcnt); |
1605 | array_verify (EV_A_ (W *)checks, checkcnt); |
3228 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
3229 | #endif |
1606 | |
3230 | |
1607 | # if 0 |
3231 | # if 0 |
|
|
3232 | #if EV_CHILD_ENABLE |
1608 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
3233 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1609 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
3234 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
3235 | #endif |
1610 | # endif |
3236 | # endif |
1611 | #endif |
3237 | #endif |
1612 | } |
3238 | } |
1613 | |
3239 | #endif |
1614 | #endif /* multiplicity */ |
|
|
1615 | |
3240 | |
1616 | #if EV_MULTIPLICITY |
3241 | #if EV_MULTIPLICITY |
|
|
3242 | ecb_cold |
1617 | struct ev_loop * |
3243 | struct ev_loop * |
1618 | ev_default_loop_init (unsigned int flags) |
|
|
1619 | #else |
3244 | #else |
1620 | int |
3245 | int |
|
|
3246 | #endif |
1621 | ev_default_loop (unsigned int flags) |
3247 | ev_default_loop (unsigned int flags) EV_THROW |
1622 | #endif |
|
|
1623 | { |
3248 | { |
1624 | if (!ev_default_loop_ptr) |
3249 | if (!ev_default_loop_ptr) |
1625 | { |
3250 | { |
1626 | #if EV_MULTIPLICITY |
3251 | #if EV_MULTIPLICITY |
1627 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
3252 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1628 | #else |
3253 | #else |
1629 | ev_default_loop_ptr = 1; |
3254 | ev_default_loop_ptr = 1; |
1630 | #endif |
3255 | #endif |
1631 | |
3256 | |
1632 | loop_init (EV_A_ flags); |
3257 | loop_init (EV_A_ flags); |
1633 | |
3258 | |
1634 | if (ev_backend (EV_A)) |
3259 | if (ev_backend (EV_A)) |
1635 | { |
3260 | { |
1636 | #ifndef _WIN32 |
3261 | #if EV_CHILD_ENABLE |
1637 | ev_signal_init (&childev, childcb, SIGCHLD); |
3262 | ev_signal_init (&childev, childcb, SIGCHLD); |
1638 | ev_set_priority (&childev, EV_MAXPRI); |
3263 | ev_set_priority (&childev, EV_MAXPRI); |
1639 | ev_signal_start (EV_A_ &childev); |
3264 | ev_signal_start (EV_A_ &childev); |
1640 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
3265 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1641 | #endif |
3266 | #endif |
… | |
… | |
1646 | |
3271 | |
1647 | return ev_default_loop_ptr; |
3272 | return ev_default_loop_ptr; |
1648 | } |
3273 | } |
1649 | |
3274 | |
1650 | void |
3275 | void |
1651 | ev_default_destroy (void) |
3276 | ev_loop_fork (EV_P) EV_THROW |
1652 | { |
3277 | { |
1653 | #if EV_MULTIPLICITY |
3278 | postfork = 1; |
1654 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1655 | #endif |
|
|
1656 | |
|
|
1657 | #ifndef _WIN32 |
|
|
1658 | ev_ref (EV_A); /* child watcher */ |
|
|
1659 | ev_signal_stop (EV_A_ &childev); |
|
|
1660 | #endif |
|
|
1661 | |
|
|
1662 | loop_destroy (EV_A); |
|
|
1663 | } |
|
|
1664 | |
|
|
1665 | void |
|
|
1666 | ev_default_fork (void) |
|
|
1667 | { |
|
|
1668 | #if EV_MULTIPLICITY |
|
|
1669 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1670 | #endif |
|
|
1671 | |
|
|
1672 | if (backend) |
|
|
1673 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1674 | } |
3279 | } |
1675 | |
3280 | |
1676 | /*****************************************************************************/ |
3281 | /*****************************************************************************/ |
1677 | |
3282 | |
1678 | void |
3283 | void |
1679 | ev_invoke (EV_P_ void *w, int revents) |
3284 | ev_invoke (EV_P_ void *w, int revents) |
1680 | { |
3285 | { |
1681 | EV_CB_INVOKE ((W)w, revents); |
3286 | EV_CB_INVOKE ((W)w, revents); |
1682 | } |
3287 | } |
1683 | |
3288 | |
1684 | void inline_speed |
3289 | unsigned int |
1685 | call_pending (EV_P) |
3290 | ev_pending_count (EV_P) EV_THROW |
1686 | { |
3291 | { |
1687 | int pri; |
3292 | int pri; |
|
|
3293 | unsigned int count = 0; |
1688 | |
3294 | |
1689 | for (pri = NUMPRI; pri--; ) |
3295 | for (pri = NUMPRI; pri--; ) |
|
|
3296 | count += pendingcnt [pri]; |
|
|
3297 | |
|
|
3298 | return count; |
|
|
3299 | } |
|
|
3300 | |
|
|
3301 | noinline |
|
|
3302 | void |
|
|
3303 | ev_invoke_pending (EV_P) |
|
|
3304 | { |
|
|
3305 | pendingpri = NUMPRI; |
|
|
3306 | |
|
|
3307 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3308 | { |
|
|
3309 | --pendingpri; |
|
|
3310 | |
1690 | while (pendingcnt [pri]) |
3311 | while (pendingcnt [pendingpri]) |
1691 | { |
|
|
1692 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
|
|
1693 | |
|
|
1694 | if (expect_true (p->w)) |
|
|
1695 | { |
3312 | { |
1696 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
3313 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1697 | |
3314 | |
1698 | p->w->pending = 0; |
3315 | p->w->pending = 0; |
1699 | EV_CB_INVOKE (p->w, p->events); |
3316 | EV_CB_INVOKE (p->w, p->events); |
1700 | EV_FREQUENT_CHECK; |
3317 | EV_FREQUENT_CHECK; |
1701 | } |
3318 | } |
1702 | } |
3319 | } |
1703 | } |
3320 | } |
1704 | |
3321 | |
1705 | #if EV_IDLE_ENABLE |
3322 | #if EV_IDLE_ENABLE |
1706 | void inline_size |
3323 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
3324 | /* only when higher priorities are idle" logic */ |
|
|
3325 | inline_size void |
1707 | idle_reify (EV_P) |
3326 | idle_reify (EV_P) |
1708 | { |
3327 | { |
1709 | if (expect_false (idleall)) |
3328 | if (expect_false (idleall)) |
1710 | { |
3329 | { |
1711 | int pri; |
3330 | int pri; |
… | |
… | |
1723 | } |
3342 | } |
1724 | } |
3343 | } |
1725 | } |
3344 | } |
1726 | #endif |
3345 | #endif |
1727 | |
3346 | |
1728 | void inline_size |
3347 | /* make timers pending */ |
|
|
3348 | inline_size void |
1729 | timers_reify (EV_P) |
3349 | timers_reify (EV_P) |
1730 | { |
3350 | { |
1731 | EV_FREQUENT_CHECK; |
3351 | EV_FREQUENT_CHECK; |
1732 | |
3352 | |
1733 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
3353 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1734 | { |
3354 | { |
1735 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
3355 | do |
1736 | |
|
|
1737 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1738 | |
|
|
1739 | /* first reschedule or stop timer */ |
|
|
1740 | if (w->repeat) |
|
|
1741 | { |
3356 | { |
|
|
3357 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
3358 | |
|
|
3359 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
3360 | |
|
|
3361 | /* first reschedule or stop timer */ |
|
|
3362 | if (w->repeat) |
|
|
3363 | { |
1742 | ev_at (w) += w->repeat; |
3364 | ev_at (w) += w->repeat; |
1743 | if (ev_at (w) < mn_now) |
3365 | if (ev_at (w) < mn_now) |
1744 | ev_at (w) = mn_now; |
3366 | ev_at (w) = mn_now; |
1745 | |
3367 | |
1746 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3368 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1747 | |
3369 | |
1748 | ANHE_at_cache (timers [HEAP0]); |
3370 | ANHE_at_cache (timers [HEAP0]); |
1749 | downheap (timers, timercnt, HEAP0); |
3371 | downheap (timers, timercnt, HEAP0); |
|
|
3372 | } |
|
|
3373 | else |
|
|
3374 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
3375 | |
|
|
3376 | EV_FREQUENT_CHECK; |
|
|
3377 | feed_reverse (EV_A_ (W)w); |
1750 | } |
3378 | } |
1751 | else |
3379 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1752 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1753 | |
3380 | |
1754 | EV_FREQUENT_CHECK; |
3381 | feed_reverse_done (EV_A_ EV_TIMER); |
1755 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1756 | } |
3382 | } |
1757 | } |
3383 | } |
1758 | |
3384 | |
1759 | #if EV_PERIODIC_ENABLE |
3385 | #if EV_PERIODIC_ENABLE |
1760 | void inline_size |
3386 | |
|
|
3387 | noinline |
|
|
3388 | static void |
|
|
3389 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3390 | { |
|
|
3391 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3392 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3393 | |
|
|
3394 | /* the above almost always errs on the low side */ |
|
|
3395 | while (at <= ev_rt_now) |
|
|
3396 | { |
|
|
3397 | ev_tstamp nat = at + w->interval; |
|
|
3398 | |
|
|
3399 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3400 | if (expect_false (nat == at)) |
|
|
3401 | { |
|
|
3402 | at = ev_rt_now; |
|
|
3403 | break; |
|
|
3404 | } |
|
|
3405 | |
|
|
3406 | at = nat; |
|
|
3407 | } |
|
|
3408 | |
|
|
3409 | ev_at (w) = at; |
|
|
3410 | } |
|
|
3411 | |
|
|
3412 | /* make periodics pending */ |
|
|
3413 | inline_size void |
1761 | periodics_reify (EV_P) |
3414 | periodics_reify (EV_P) |
1762 | { |
3415 | { |
1763 | EV_FREQUENT_CHECK; |
3416 | EV_FREQUENT_CHECK; |
1764 | |
3417 | |
1765 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3418 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1766 | { |
3419 | { |
1767 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3420 | do |
1768 | |
|
|
1769 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1770 | |
|
|
1771 | /* first reschedule or stop timer */ |
|
|
1772 | if (w->reschedule_cb) |
|
|
1773 | { |
3421 | { |
|
|
3422 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
3423 | |
|
|
3424 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
3425 | |
|
|
3426 | /* first reschedule or stop timer */ |
|
|
3427 | if (w->reschedule_cb) |
|
|
3428 | { |
1774 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3429 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1775 | |
3430 | |
1776 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
3431 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1777 | |
3432 | |
1778 | ANHE_at_cache (periodics [HEAP0]); |
3433 | ANHE_at_cache (periodics [HEAP0]); |
1779 | downheap (periodics, periodiccnt, HEAP0); |
3434 | downheap (periodics, periodiccnt, HEAP0); |
|
|
3435 | } |
|
|
3436 | else if (w->interval) |
|
|
3437 | { |
|
|
3438 | periodic_recalc (EV_A_ w); |
|
|
3439 | ANHE_at_cache (periodics [HEAP0]); |
|
|
3440 | downheap (periodics, periodiccnt, HEAP0); |
|
|
3441 | } |
|
|
3442 | else |
|
|
3443 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
3444 | |
|
|
3445 | EV_FREQUENT_CHECK; |
|
|
3446 | feed_reverse (EV_A_ (W)w); |
1780 | } |
3447 | } |
1781 | else if (w->interval) |
3448 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1782 | { |
|
|
1783 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1784 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1785 | /* this might happen because of floating point inexactness */ |
|
|
1786 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1787 | { |
|
|
1788 | ev_at (w) += w->interval; |
|
|
1789 | |
3449 | |
1790 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1791 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1792 | /* has effectively asked to get triggered more often than possible */ |
|
|
1793 | if (ev_at (w) < ev_rt_now) |
|
|
1794 | ev_at (w) = ev_rt_now; |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1798 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1799 | } |
|
|
1800 | else |
|
|
1801 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1802 | |
|
|
1803 | EV_FREQUENT_CHECK; |
|
|
1804 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
3450 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1805 | } |
3451 | } |
1806 | } |
3452 | } |
1807 | |
3453 | |
1808 | static void noinline |
3454 | /* simply recalculate all periodics */ |
|
|
3455 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
3456 | noinline ecb_cold |
|
|
3457 | static void |
1809 | periodics_reschedule (EV_P) |
3458 | periodics_reschedule (EV_P) |
1810 | { |
3459 | { |
1811 | int i; |
3460 | int i; |
1812 | |
3461 | |
1813 | /* adjust periodics after time jump */ |
3462 | /* adjust periodics after time jump */ |
… | |
… | |
1816 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3465 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1817 | |
3466 | |
1818 | if (w->reschedule_cb) |
3467 | if (w->reschedule_cb) |
1819 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3468 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1820 | else if (w->interval) |
3469 | else if (w->interval) |
1821 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3470 | periodic_recalc (EV_A_ w); |
1822 | |
3471 | |
1823 | ANHE_at_cache (periodics [i]); |
3472 | ANHE_at_cache (periodics [i]); |
1824 | } |
3473 | } |
1825 | |
3474 | |
1826 | reheap (periodics, periodiccnt); |
3475 | reheap (periodics, periodiccnt); |
1827 | } |
3476 | } |
1828 | #endif |
3477 | #endif |
1829 | |
3478 | |
1830 | void inline_speed |
3479 | /* adjust all timers by a given offset */ |
|
|
3480 | noinline ecb_cold |
|
|
3481 | static void |
|
|
3482 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
3483 | { |
|
|
3484 | int i; |
|
|
3485 | |
|
|
3486 | for (i = 0; i < timercnt; ++i) |
|
|
3487 | { |
|
|
3488 | ANHE *he = timers + i + HEAP0; |
|
|
3489 | ANHE_w (*he)->at += adjust; |
|
|
3490 | ANHE_at_cache (*he); |
|
|
3491 | } |
|
|
3492 | } |
|
|
3493 | |
|
|
3494 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
3495 | /* also detect if there was a timejump, and act accordingly */ |
|
|
3496 | inline_speed void |
1831 | time_update (EV_P_ ev_tstamp max_block) |
3497 | time_update (EV_P_ ev_tstamp max_block) |
1832 | { |
3498 | { |
1833 | int i; |
|
|
1834 | |
|
|
1835 | #if EV_USE_MONOTONIC |
3499 | #if EV_USE_MONOTONIC |
1836 | if (expect_true (have_monotonic)) |
3500 | if (expect_true (have_monotonic)) |
1837 | { |
3501 | { |
|
|
3502 | int i; |
1838 | ev_tstamp odiff = rtmn_diff; |
3503 | ev_tstamp odiff = rtmn_diff; |
1839 | |
3504 | |
1840 | mn_now = get_clock (); |
3505 | mn_now = get_clock (); |
1841 | |
3506 | |
1842 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3507 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1858 | * doesn't hurt either as we only do this on time-jumps or |
3523 | * doesn't hurt either as we only do this on time-jumps or |
1859 | * in the unlikely event of having been preempted here. |
3524 | * in the unlikely event of having been preempted here. |
1860 | */ |
3525 | */ |
1861 | for (i = 4; --i; ) |
3526 | for (i = 4; --i; ) |
1862 | { |
3527 | { |
|
|
3528 | ev_tstamp diff; |
1863 | rtmn_diff = ev_rt_now - mn_now; |
3529 | rtmn_diff = ev_rt_now - mn_now; |
1864 | |
3530 | |
|
|
3531 | diff = odiff - rtmn_diff; |
|
|
3532 | |
1865 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3533 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1866 | return; /* all is well */ |
3534 | return; /* all is well */ |
1867 | |
3535 | |
1868 | ev_rt_now = ev_time (); |
3536 | ev_rt_now = ev_time (); |
1869 | mn_now = get_clock (); |
3537 | mn_now = get_clock (); |
1870 | now_floor = mn_now; |
3538 | now_floor = mn_now; |
1871 | } |
3539 | } |
1872 | |
3540 | |
|
|
3541 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
3542 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1873 | # if EV_PERIODIC_ENABLE |
3543 | # if EV_PERIODIC_ENABLE |
1874 | periodics_reschedule (EV_A); |
3544 | periodics_reschedule (EV_A); |
1875 | # endif |
3545 | # endif |
1876 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1877 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1878 | } |
3546 | } |
1879 | else |
3547 | else |
1880 | #endif |
3548 | #endif |
1881 | { |
3549 | { |
1882 | ev_rt_now = ev_time (); |
3550 | ev_rt_now = ev_time (); |
1883 | |
3551 | |
1884 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3552 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1885 | { |
3553 | { |
|
|
3554 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
3555 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1886 | #if EV_PERIODIC_ENABLE |
3556 | #if EV_PERIODIC_ENABLE |
1887 | periodics_reschedule (EV_A); |
3557 | periodics_reschedule (EV_A); |
1888 | #endif |
3558 | #endif |
1889 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1890 | for (i = 0; i < timercnt; ++i) |
|
|
1891 | { |
|
|
1892 | ANHE *he = timers + i + HEAP0; |
|
|
1893 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1894 | ANHE_at_cache (*he); |
|
|
1895 | } |
|
|
1896 | } |
3559 | } |
1897 | |
3560 | |
1898 | mn_now = ev_rt_now; |
3561 | mn_now = ev_rt_now; |
1899 | } |
3562 | } |
1900 | } |
3563 | } |
1901 | |
3564 | |
1902 | void |
3565 | int |
1903 | ev_ref (EV_P) |
|
|
1904 | { |
|
|
1905 | ++activecnt; |
|
|
1906 | } |
|
|
1907 | |
|
|
1908 | void |
|
|
1909 | ev_unref (EV_P) |
|
|
1910 | { |
|
|
1911 | --activecnt; |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | static int loop_done; |
|
|
1915 | |
|
|
1916 | void |
|
|
1917 | ev_loop (EV_P_ int flags) |
3566 | ev_run (EV_P_ int flags) |
1918 | { |
3567 | { |
|
|
3568 | #if EV_FEATURE_API |
|
|
3569 | ++loop_depth; |
|
|
3570 | #endif |
|
|
3571 | |
|
|
3572 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3573 | |
1919 | loop_done = EVUNLOOP_CANCEL; |
3574 | loop_done = EVBREAK_CANCEL; |
1920 | |
3575 | |
1921 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
3576 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1922 | |
3577 | |
1923 | do |
3578 | do |
1924 | { |
3579 | { |
1925 | #if EV_VERIFY >= 2 |
3580 | #if EV_VERIFY >= 2 |
1926 | ev_loop_verify (EV_A); |
3581 | ev_verify (EV_A); |
1927 | #endif |
3582 | #endif |
1928 | |
3583 | |
1929 | #ifndef _WIN32 |
3584 | #ifndef _WIN32 |
1930 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3585 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1931 | if (expect_false (getpid () != curpid)) |
3586 | if (expect_false (getpid () != curpid)) |
… | |
… | |
1939 | /* we might have forked, so queue fork handlers */ |
3594 | /* we might have forked, so queue fork handlers */ |
1940 | if (expect_false (postfork)) |
3595 | if (expect_false (postfork)) |
1941 | if (forkcnt) |
3596 | if (forkcnt) |
1942 | { |
3597 | { |
1943 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3598 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1944 | call_pending (EV_A); |
3599 | EV_INVOKE_PENDING; |
1945 | } |
3600 | } |
1946 | #endif |
3601 | #endif |
1947 | |
3602 | |
|
|
3603 | #if EV_PREPARE_ENABLE |
1948 | /* queue prepare watchers (and execute them) */ |
3604 | /* queue prepare watchers (and execute them) */ |
1949 | if (expect_false (preparecnt)) |
3605 | if (expect_false (preparecnt)) |
1950 | { |
3606 | { |
1951 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3607 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1952 | call_pending (EV_A); |
3608 | EV_INVOKE_PENDING; |
1953 | } |
3609 | } |
|
|
3610 | #endif |
1954 | |
3611 | |
1955 | if (expect_false (!activecnt)) |
3612 | if (expect_false (loop_done)) |
1956 | break; |
3613 | break; |
1957 | |
3614 | |
1958 | /* we might have forked, so reify kernel state if necessary */ |
3615 | /* we might have forked, so reify kernel state if necessary */ |
1959 | if (expect_false (postfork)) |
3616 | if (expect_false (postfork)) |
1960 | loop_fork (EV_A); |
3617 | loop_fork (EV_A); |
… | |
… | |
1965 | /* calculate blocking time */ |
3622 | /* calculate blocking time */ |
1966 | { |
3623 | { |
1967 | ev_tstamp waittime = 0.; |
3624 | ev_tstamp waittime = 0.; |
1968 | ev_tstamp sleeptime = 0.; |
3625 | ev_tstamp sleeptime = 0.; |
1969 | |
3626 | |
|
|
3627 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3628 | ev_tstamp prev_mn_now = mn_now; |
|
|
3629 | |
|
|
3630 | /* update time to cancel out callback processing overhead */ |
|
|
3631 | time_update (EV_A_ 1e100); |
|
|
3632 | |
|
|
3633 | /* from now on, we want a pipe-wake-up */ |
|
|
3634 | pipe_write_wanted = 1; |
|
|
3635 | |
|
|
3636 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3637 | |
1970 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3638 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1971 | { |
3639 | { |
1972 | /* update time to cancel out callback processing overhead */ |
|
|
1973 | time_update (EV_A_ 1e100); |
|
|
1974 | |
|
|
1975 | waittime = MAX_BLOCKTIME; |
3640 | waittime = MAX_BLOCKTIME; |
1976 | |
3641 | |
1977 | if (timercnt) |
3642 | if (timercnt) |
1978 | { |
3643 | { |
1979 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3644 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1980 | if (waittime > to) waittime = to; |
3645 | if (waittime > to) waittime = to; |
1981 | } |
3646 | } |
1982 | |
3647 | |
1983 | #if EV_PERIODIC_ENABLE |
3648 | #if EV_PERIODIC_ENABLE |
1984 | if (periodiccnt) |
3649 | if (periodiccnt) |
1985 | { |
3650 | { |
1986 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3651 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1987 | if (waittime > to) waittime = to; |
3652 | if (waittime > to) waittime = to; |
1988 | } |
3653 | } |
1989 | #endif |
3654 | #endif |
1990 | |
3655 | |
|
|
3656 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1991 | if (expect_false (waittime < timeout_blocktime)) |
3657 | if (expect_false (waittime < timeout_blocktime)) |
1992 | waittime = timeout_blocktime; |
3658 | waittime = timeout_blocktime; |
1993 | |
3659 | |
1994 | sleeptime = waittime - backend_fudge; |
3660 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3661 | /* to pass a minimum nonzero value to the backend */ |
|
|
3662 | if (expect_false (waittime < backend_mintime)) |
|
|
3663 | waittime = backend_mintime; |
1995 | |
3664 | |
|
|
3665 | /* extra check because io_blocktime is commonly 0 */ |
1996 | if (expect_true (sleeptime > io_blocktime)) |
3666 | if (expect_false (io_blocktime)) |
1997 | sleeptime = io_blocktime; |
|
|
1998 | |
|
|
1999 | if (sleeptime) |
|
|
2000 | { |
3667 | { |
|
|
3668 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3669 | |
|
|
3670 | if (sleeptime > waittime - backend_mintime) |
|
|
3671 | sleeptime = waittime - backend_mintime; |
|
|
3672 | |
|
|
3673 | if (expect_true (sleeptime > 0.)) |
|
|
3674 | { |
2001 | ev_sleep (sleeptime); |
3675 | ev_sleep (sleeptime); |
2002 | waittime -= sleeptime; |
3676 | waittime -= sleeptime; |
|
|
3677 | } |
2003 | } |
3678 | } |
2004 | } |
3679 | } |
2005 | |
3680 | |
|
|
3681 | #if EV_FEATURE_API |
2006 | ++loop_count; |
3682 | ++loop_count; |
|
|
3683 | #endif |
|
|
3684 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2007 | backend_poll (EV_A_ waittime); |
3685 | backend_poll (EV_A_ waittime); |
|
|
3686 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3687 | |
|
|
3688 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3689 | |
|
|
3690 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3691 | if (pipe_write_skipped) |
|
|
3692 | { |
|
|
3693 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3694 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3695 | } |
|
|
3696 | |
2008 | |
3697 | |
2009 | /* update ev_rt_now, do magic */ |
3698 | /* update ev_rt_now, do magic */ |
2010 | time_update (EV_A_ waittime + sleeptime); |
3699 | time_update (EV_A_ waittime + sleeptime); |
2011 | } |
3700 | } |
2012 | |
3701 | |
… | |
… | |
2019 | #if EV_IDLE_ENABLE |
3708 | #if EV_IDLE_ENABLE |
2020 | /* queue idle watchers unless other events are pending */ |
3709 | /* queue idle watchers unless other events are pending */ |
2021 | idle_reify (EV_A); |
3710 | idle_reify (EV_A); |
2022 | #endif |
3711 | #endif |
2023 | |
3712 | |
|
|
3713 | #if EV_CHECK_ENABLE |
2024 | /* queue check watchers, to be executed first */ |
3714 | /* queue check watchers, to be executed first */ |
2025 | if (expect_false (checkcnt)) |
3715 | if (expect_false (checkcnt)) |
2026 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3716 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3717 | #endif |
2027 | |
3718 | |
2028 | call_pending (EV_A); |
3719 | EV_INVOKE_PENDING; |
2029 | } |
3720 | } |
2030 | while (expect_true ( |
3721 | while (expect_true ( |
2031 | activecnt |
3722 | activecnt |
2032 | && !loop_done |
3723 | && !loop_done |
2033 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3724 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2034 | )); |
3725 | )); |
2035 | |
3726 | |
2036 | if (loop_done == EVUNLOOP_ONE) |
3727 | if (loop_done == EVBREAK_ONE) |
2037 | loop_done = EVUNLOOP_CANCEL; |
3728 | loop_done = EVBREAK_CANCEL; |
2038 | } |
|
|
2039 | |
3729 | |
|
|
3730 | #if EV_FEATURE_API |
|
|
3731 | --loop_depth; |
|
|
3732 | #endif |
|
|
3733 | |
|
|
3734 | return activecnt; |
|
|
3735 | } |
|
|
3736 | |
2040 | void |
3737 | void |
2041 | ev_unloop (EV_P_ int how) |
3738 | ev_break (EV_P_ int how) EV_THROW |
2042 | { |
3739 | { |
2043 | loop_done = how; |
3740 | loop_done = how; |
2044 | } |
3741 | } |
2045 | |
3742 | |
|
|
3743 | void |
|
|
3744 | ev_ref (EV_P) EV_THROW |
|
|
3745 | { |
|
|
3746 | ++activecnt; |
|
|
3747 | } |
|
|
3748 | |
|
|
3749 | void |
|
|
3750 | ev_unref (EV_P) EV_THROW |
|
|
3751 | { |
|
|
3752 | --activecnt; |
|
|
3753 | } |
|
|
3754 | |
|
|
3755 | void |
|
|
3756 | ev_now_update (EV_P) EV_THROW |
|
|
3757 | { |
|
|
3758 | time_update (EV_A_ 1e100); |
|
|
3759 | } |
|
|
3760 | |
|
|
3761 | void |
|
|
3762 | ev_suspend (EV_P) EV_THROW |
|
|
3763 | { |
|
|
3764 | ev_now_update (EV_A); |
|
|
3765 | } |
|
|
3766 | |
|
|
3767 | void |
|
|
3768 | ev_resume (EV_P) EV_THROW |
|
|
3769 | { |
|
|
3770 | ev_tstamp mn_prev = mn_now; |
|
|
3771 | |
|
|
3772 | ev_now_update (EV_A); |
|
|
3773 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3774 | #if EV_PERIODIC_ENABLE |
|
|
3775 | /* TODO: really do this? */ |
|
|
3776 | periodics_reschedule (EV_A); |
|
|
3777 | #endif |
|
|
3778 | } |
|
|
3779 | |
2046 | /*****************************************************************************/ |
3780 | /*****************************************************************************/ |
|
|
3781 | /* singly-linked list management, used when the expected list length is short */ |
2047 | |
3782 | |
2048 | void inline_size |
3783 | inline_size void |
2049 | wlist_add (WL *head, WL elem) |
3784 | wlist_add (WL *head, WL elem) |
2050 | { |
3785 | { |
2051 | elem->next = *head; |
3786 | elem->next = *head; |
2052 | *head = elem; |
3787 | *head = elem; |
2053 | } |
3788 | } |
2054 | |
3789 | |
2055 | void inline_size |
3790 | inline_size void |
2056 | wlist_del (WL *head, WL elem) |
3791 | wlist_del (WL *head, WL elem) |
2057 | { |
3792 | { |
2058 | while (*head) |
3793 | while (*head) |
2059 | { |
3794 | { |
2060 | if (*head == elem) |
3795 | if (expect_true (*head == elem)) |
2061 | { |
3796 | { |
2062 | *head = elem->next; |
3797 | *head = elem->next; |
2063 | return; |
3798 | break; |
2064 | } |
3799 | } |
2065 | |
3800 | |
2066 | head = &(*head)->next; |
3801 | head = &(*head)->next; |
2067 | } |
3802 | } |
2068 | } |
3803 | } |
2069 | |
3804 | |
2070 | void inline_speed |
3805 | /* internal, faster, version of ev_clear_pending */ |
|
|
3806 | inline_speed void |
2071 | clear_pending (EV_P_ W w) |
3807 | clear_pending (EV_P_ W w) |
2072 | { |
3808 | { |
2073 | if (w->pending) |
3809 | if (w->pending) |
2074 | { |
3810 | { |
2075 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3811 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2076 | w->pending = 0; |
3812 | w->pending = 0; |
2077 | } |
3813 | } |
2078 | } |
3814 | } |
2079 | |
3815 | |
2080 | int |
3816 | int |
2081 | ev_clear_pending (EV_P_ void *w) |
3817 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2082 | { |
3818 | { |
2083 | W w_ = (W)w; |
3819 | W w_ = (W)w; |
2084 | int pending = w_->pending; |
3820 | int pending = w_->pending; |
2085 | |
3821 | |
2086 | if (expect_true (pending)) |
3822 | if (expect_true (pending)) |
2087 | { |
3823 | { |
2088 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3824 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3825 | p->w = (W)&pending_w; |
2089 | w_->pending = 0; |
3826 | w_->pending = 0; |
2090 | p->w = 0; |
|
|
2091 | return p->events; |
3827 | return p->events; |
2092 | } |
3828 | } |
2093 | else |
3829 | else |
2094 | return 0; |
3830 | return 0; |
2095 | } |
3831 | } |
2096 | |
3832 | |
2097 | void inline_size |
3833 | inline_size void |
2098 | pri_adjust (EV_P_ W w) |
3834 | pri_adjust (EV_P_ W w) |
2099 | { |
3835 | { |
2100 | int pri = w->priority; |
3836 | int pri = ev_priority (w); |
2101 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3837 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2102 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3838 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2103 | w->priority = pri; |
3839 | ev_set_priority (w, pri); |
2104 | } |
3840 | } |
2105 | |
3841 | |
2106 | void inline_speed |
3842 | inline_speed void |
2107 | ev_start (EV_P_ W w, int active) |
3843 | ev_start (EV_P_ W w, int active) |
2108 | { |
3844 | { |
2109 | pri_adjust (EV_A_ w); |
3845 | pri_adjust (EV_A_ w); |
2110 | w->active = active; |
3846 | w->active = active; |
2111 | ev_ref (EV_A); |
3847 | ev_ref (EV_A); |
2112 | } |
3848 | } |
2113 | |
3849 | |
2114 | void inline_size |
3850 | inline_size void |
2115 | ev_stop (EV_P_ W w) |
3851 | ev_stop (EV_P_ W w) |
2116 | { |
3852 | { |
2117 | ev_unref (EV_A); |
3853 | ev_unref (EV_A); |
2118 | w->active = 0; |
3854 | w->active = 0; |
2119 | } |
3855 | } |
2120 | |
3856 | |
2121 | /*****************************************************************************/ |
3857 | /*****************************************************************************/ |
2122 | |
3858 | |
2123 | void noinline |
3859 | noinline |
|
|
3860 | void |
2124 | ev_io_start (EV_P_ ev_io *w) |
3861 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2125 | { |
3862 | { |
2126 | int fd = w->fd; |
3863 | int fd = w->fd; |
2127 | |
3864 | |
2128 | if (expect_false (ev_is_active (w))) |
3865 | if (expect_false (ev_is_active (w))) |
2129 | return; |
3866 | return; |
2130 | |
3867 | |
2131 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3868 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
3869 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2132 | |
3870 | |
2133 | EV_FREQUENT_CHECK; |
3871 | EV_FREQUENT_CHECK; |
2134 | |
3872 | |
2135 | ev_start (EV_A_ (W)w, 1); |
3873 | ev_start (EV_A_ (W)w, 1); |
2136 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
3874 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2137 | wlist_add (&anfds[fd].head, (WL)w); |
3875 | wlist_add (&anfds[fd].head, (WL)w); |
2138 | |
3876 | |
|
|
3877 | /* common bug, apparently */ |
|
|
3878 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3879 | |
2139 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
3880 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2140 | w->events &= ~EV_IOFDSET; |
3881 | w->events &= ~EV__IOFDSET; |
2141 | |
3882 | |
2142 | EV_FREQUENT_CHECK; |
3883 | EV_FREQUENT_CHECK; |
2143 | } |
3884 | } |
2144 | |
3885 | |
2145 | void noinline |
3886 | noinline |
|
|
3887 | void |
2146 | ev_io_stop (EV_P_ ev_io *w) |
3888 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2147 | { |
3889 | { |
2148 | clear_pending (EV_A_ (W)w); |
3890 | clear_pending (EV_A_ (W)w); |
2149 | if (expect_false (!ev_is_active (w))) |
3891 | if (expect_false (!ev_is_active (w))) |
2150 | return; |
3892 | return; |
2151 | |
3893 | |
2152 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3894 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2153 | |
3895 | |
2154 | EV_FREQUENT_CHECK; |
3896 | EV_FREQUENT_CHECK; |
2155 | |
3897 | |
2156 | wlist_del (&anfds[w->fd].head, (WL)w); |
3898 | wlist_del (&anfds[w->fd].head, (WL)w); |
2157 | ev_stop (EV_A_ (W)w); |
3899 | ev_stop (EV_A_ (W)w); |
2158 | |
3900 | |
2159 | fd_change (EV_A_ w->fd, 1); |
3901 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2160 | |
3902 | |
2161 | EV_FREQUENT_CHECK; |
3903 | EV_FREQUENT_CHECK; |
2162 | } |
3904 | } |
2163 | |
3905 | |
2164 | void noinline |
3906 | noinline |
|
|
3907 | void |
2165 | ev_timer_start (EV_P_ ev_timer *w) |
3908 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2166 | { |
3909 | { |
2167 | if (expect_false (ev_is_active (w))) |
3910 | if (expect_false (ev_is_active (w))) |
2168 | return; |
3911 | return; |
2169 | |
3912 | |
2170 | ev_at (w) += mn_now; |
3913 | ev_at (w) += mn_now; |
2171 | |
3914 | |
2172 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3915 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2173 | |
3916 | |
2174 | EV_FREQUENT_CHECK; |
3917 | EV_FREQUENT_CHECK; |
2175 | |
3918 | |
2176 | ++timercnt; |
3919 | ++timercnt; |
2177 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3920 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2180 | ANHE_at_cache (timers [ev_active (w)]); |
3923 | ANHE_at_cache (timers [ev_active (w)]); |
2181 | upheap (timers, ev_active (w)); |
3924 | upheap (timers, ev_active (w)); |
2182 | |
3925 | |
2183 | EV_FREQUENT_CHECK; |
3926 | EV_FREQUENT_CHECK; |
2184 | |
3927 | |
2185 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3928 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2186 | } |
3929 | } |
2187 | |
3930 | |
2188 | void noinline |
3931 | noinline |
|
|
3932 | void |
2189 | ev_timer_stop (EV_P_ ev_timer *w) |
3933 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2190 | { |
3934 | { |
2191 | clear_pending (EV_A_ (W)w); |
3935 | clear_pending (EV_A_ (W)w); |
2192 | if (expect_false (!ev_is_active (w))) |
3936 | if (expect_false (!ev_is_active (w))) |
2193 | return; |
3937 | return; |
2194 | |
3938 | |
2195 | EV_FREQUENT_CHECK; |
3939 | EV_FREQUENT_CHECK; |
2196 | |
3940 | |
2197 | { |
3941 | { |
2198 | int active = ev_active (w); |
3942 | int active = ev_active (w); |
2199 | |
3943 | |
2200 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3944 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2201 | |
3945 | |
2202 | --timercnt; |
3946 | --timercnt; |
2203 | |
3947 | |
2204 | if (expect_true (active < timercnt + HEAP0)) |
3948 | if (expect_true (active < timercnt + HEAP0)) |
2205 | { |
3949 | { |
2206 | timers [active] = timers [timercnt + HEAP0]; |
3950 | timers [active] = timers [timercnt + HEAP0]; |
2207 | adjustheap (timers, timercnt, active); |
3951 | adjustheap (timers, timercnt, active); |
2208 | } |
3952 | } |
2209 | } |
3953 | } |
2210 | |
3954 | |
2211 | EV_FREQUENT_CHECK; |
|
|
2212 | |
|
|
2213 | ev_at (w) -= mn_now; |
3955 | ev_at (w) -= mn_now; |
2214 | |
3956 | |
2215 | ev_stop (EV_A_ (W)w); |
3957 | ev_stop (EV_A_ (W)w); |
2216 | } |
|
|
2217 | |
3958 | |
|
|
3959 | EV_FREQUENT_CHECK; |
|
|
3960 | } |
|
|
3961 | |
2218 | void noinline |
3962 | noinline |
|
|
3963 | void |
2219 | ev_timer_again (EV_P_ ev_timer *w) |
3964 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2220 | { |
3965 | { |
2221 | EV_FREQUENT_CHECK; |
3966 | EV_FREQUENT_CHECK; |
|
|
3967 | |
|
|
3968 | clear_pending (EV_A_ (W)w); |
2222 | |
3969 | |
2223 | if (ev_is_active (w)) |
3970 | if (ev_is_active (w)) |
2224 | { |
3971 | { |
2225 | if (w->repeat) |
3972 | if (w->repeat) |
2226 | { |
3973 | { |
… | |
… | |
2238 | } |
3985 | } |
2239 | |
3986 | |
2240 | EV_FREQUENT_CHECK; |
3987 | EV_FREQUENT_CHECK; |
2241 | } |
3988 | } |
2242 | |
3989 | |
|
|
3990 | ev_tstamp |
|
|
3991 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
|
|
3992 | { |
|
|
3993 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
3994 | } |
|
|
3995 | |
2243 | #if EV_PERIODIC_ENABLE |
3996 | #if EV_PERIODIC_ENABLE |
2244 | void noinline |
3997 | noinline |
|
|
3998 | void |
2245 | ev_periodic_start (EV_P_ ev_periodic *w) |
3999 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2246 | { |
4000 | { |
2247 | if (expect_false (ev_is_active (w))) |
4001 | if (expect_false (ev_is_active (w))) |
2248 | return; |
4002 | return; |
2249 | |
4003 | |
2250 | if (w->reschedule_cb) |
4004 | if (w->reschedule_cb) |
2251 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4005 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2252 | else if (w->interval) |
4006 | else if (w->interval) |
2253 | { |
4007 | { |
2254 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4008 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2255 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4009 | periodic_recalc (EV_A_ w); |
2256 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2257 | } |
4010 | } |
2258 | else |
4011 | else |
2259 | ev_at (w) = w->offset; |
4012 | ev_at (w) = w->offset; |
2260 | |
4013 | |
2261 | EV_FREQUENT_CHECK; |
4014 | EV_FREQUENT_CHECK; |
… | |
… | |
2267 | ANHE_at_cache (periodics [ev_active (w)]); |
4020 | ANHE_at_cache (periodics [ev_active (w)]); |
2268 | upheap (periodics, ev_active (w)); |
4021 | upheap (periodics, ev_active (w)); |
2269 | |
4022 | |
2270 | EV_FREQUENT_CHECK; |
4023 | EV_FREQUENT_CHECK; |
2271 | |
4024 | |
2272 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4025 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2273 | } |
4026 | } |
2274 | |
4027 | |
2275 | void noinline |
4028 | noinline |
|
|
4029 | void |
2276 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4030 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2277 | { |
4031 | { |
2278 | clear_pending (EV_A_ (W)w); |
4032 | clear_pending (EV_A_ (W)w); |
2279 | if (expect_false (!ev_is_active (w))) |
4033 | if (expect_false (!ev_is_active (w))) |
2280 | return; |
4034 | return; |
2281 | |
4035 | |
2282 | EV_FREQUENT_CHECK; |
4036 | EV_FREQUENT_CHECK; |
2283 | |
4037 | |
2284 | { |
4038 | { |
2285 | int active = ev_active (w); |
4039 | int active = ev_active (w); |
2286 | |
4040 | |
2287 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4041 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2288 | |
4042 | |
2289 | --periodiccnt; |
4043 | --periodiccnt; |
2290 | |
4044 | |
2291 | if (expect_true (active < periodiccnt + HEAP0)) |
4045 | if (expect_true (active < periodiccnt + HEAP0)) |
2292 | { |
4046 | { |
2293 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4047 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2294 | adjustheap (periodics, periodiccnt, active); |
4048 | adjustheap (periodics, periodiccnt, active); |
2295 | } |
4049 | } |
2296 | } |
4050 | } |
2297 | |
4051 | |
2298 | EV_FREQUENT_CHECK; |
|
|
2299 | |
|
|
2300 | ev_stop (EV_A_ (W)w); |
4052 | ev_stop (EV_A_ (W)w); |
2301 | } |
|
|
2302 | |
4053 | |
|
|
4054 | EV_FREQUENT_CHECK; |
|
|
4055 | } |
|
|
4056 | |
2303 | void noinline |
4057 | noinline |
|
|
4058 | void |
2304 | ev_periodic_again (EV_P_ ev_periodic *w) |
4059 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2305 | { |
4060 | { |
2306 | /* TODO: use adjustheap and recalculation */ |
4061 | /* TODO: use adjustheap and recalculation */ |
2307 | ev_periodic_stop (EV_A_ w); |
4062 | ev_periodic_stop (EV_A_ w); |
2308 | ev_periodic_start (EV_A_ w); |
4063 | ev_periodic_start (EV_A_ w); |
2309 | } |
4064 | } |
… | |
… | |
2311 | |
4066 | |
2312 | #ifndef SA_RESTART |
4067 | #ifndef SA_RESTART |
2313 | # define SA_RESTART 0 |
4068 | # define SA_RESTART 0 |
2314 | #endif |
4069 | #endif |
2315 | |
4070 | |
|
|
4071 | #if EV_SIGNAL_ENABLE |
|
|
4072 | |
2316 | void noinline |
4073 | noinline |
|
|
4074 | void |
2317 | ev_signal_start (EV_P_ ev_signal *w) |
4075 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2318 | { |
4076 | { |
2319 | #if EV_MULTIPLICITY |
|
|
2320 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2321 | #endif |
|
|
2322 | if (expect_false (ev_is_active (w))) |
4077 | if (expect_false (ev_is_active (w))) |
2323 | return; |
4078 | return; |
2324 | |
4079 | |
2325 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
4080 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2326 | |
4081 | |
2327 | evpipe_init (EV_A); |
4082 | #if EV_MULTIPLICITY |
|
|
4083 | assert (("libev: a signal must not be attached to two different loops", |
|
|
4084 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2328 | |
4085 | |
2329 | EV_FREQUENT_CHECK; |
4086 | signals [w->signum - 1].loop = EV_A; |
|
|
4087 | ECB_MEMORY_FENCE_RELEASE; |
|
|
4088 | #endif |
2330 | |
4089 | |
|
|
4090 | EV_FREQUENT_CHECK; |
|
|
4091 | |
|
|
4092 | #if EV_USE_SIGNALFD |
|
|
4093 | if (sigfd == -2) |
2331 | { |
4094 | { |
2332 | #ifndef _WIN32 |
4095 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2333 | sigset_t full, prev; |
4096 | if (sigfd < 0 && errno == EINVAL) |
2334 | sigfillset (&full); |
4097 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2335 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2336 | #endif |
|
|
2337 | |
4098 | |
2338 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
4099 | if (sigfd >= 0) |
|
|
4100 | { |
|
|
4101 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2339 | |
4102 | |
2340 | #ifndef _WIN32 |
4103 | sigemptyset (&sigfd_set); |
2341 | sigprocmask (SIG_SETMASK, &prev, 0); |
4104 | |
2342 | #endif |
4105 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
4106 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
4107 | ev_io_start (EV_A_ &sigfd_w); |
|
|
4108 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
4109 | } |
2343 | } |
4110 | } |
|
|
4111 | |
|
|
4112 | if (sigfd >= 0) |
|
|
4113 | { |
|
|
4114 | /* TODO: check .head */ |
|
|
4115 | sigaddset (&sigfd_set, w->signum); |
|
|
4116 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
4117 | |
|
|
4118 | signalfd (sigfd, &sigfd_set, 0); |
|
|
4119 | } |
|
|
4120 | #endif |
2344 | |
4121 | |
2345 | ev_start (EV_A_ (W)w, 1); |
4122 | ev_start (EV_A_ (W)w, 1); |
2346 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
4123 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2347 | |
4124 | |
2348 | if (!((WL)w)->next) |
4125 | if (!((WL)w)->next) |
|
|
4126 | # if EV_USE_SIGNALFD |
|
|
4127 | if (sigfd < 0) /*TODO*/ |
|
|
4128 | # endif |
2349 | { |
4129 | { |
2350 | #if _WIN32 |
4130 | # ifdef _WIN32 |
|
|
4131 | evpipe_init (EV_A); |
|
|
4132 | |
2351 | signal (w->signum, ev_sighandler); |
4133 | signal (w->signum, ev_sighandler); |
2352 | #else |
4134 | # else |
2353 | struct sigaction sa; |
4135 | struct sigaction sa; |
|
|
4136 | |
|
|
4137 | evpipe_init (EV_A); |
|
|
4138 | |
2354 | sa.sa_handler = ev_sighandler; |
4139 | sa.sa_handler = ev_sighandler; |
2355 | sigfillset (&sa.sa_mask); |
4140 | sigfillset (&sa.sa_mask); |
2356 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4141 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2357 | sigaction (w->signum, &sa, 0); |
4142 | sigaction (w->signum, &sa, 0); |
|
|
4143 | |
|
|
4144 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4145 | { |
|
|
4146 | sigemptyset (&sa.sa_mask); |
|
|
4147 | sigaddset (&sa.sa_mask, w->signum); |
|
|
4148 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4149 | } |
2358 | #endif |
4150 | #endif |
2359 | } |
4151 | } |
2360 | |
4152 | |
2361 | EV_FREQUENT_CHECK; |
4153 | EV_FREQUENT_CHECK; |
2362 | } |
4154 | } |
2363 | |
4155 | |
2364 | void noinline |
4156 | noinline |
|
|
4157 | void |
2365 | ev_signal_stop (EV_P_ ev_signal *w) |
4158 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2366 | { |
4159 | { |
2367 | clear_pending (EV_A_ (W)w); |
4160 | clear_pending (EV_A_ (W)w); |
2368 | if (expect_false (!ev_is_active (w))) |
4161 | if (expect_false (!ev_is_active (w))) |
2369 | return; |
4162 | return; |
2370 | |
4163 | |
… | |
… | |
2372 | |
4165 | |
2373 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4166 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2374 | ev_stop (EV_A_ (W)w); |
4167 | ev_stop (EV_A_ (W)w); |
2375 | |
4168 | |
2376 | if (!signals [w->signum - 1].head) |
4169 | if (!signals [w->signum - 1].head) |
2377 | signal (w->signum, SIG_DFL); |
4170 | { |
2378 | |
|
|
2379 | EV_FREQUENT_CHECK; |
|
|
2380 | } |
|
|
2381 | |
|
|
2382 | void |
|
|
2383 | ev_child_start (EV_P_ ev_child *w) |
|
|
2384 | { |
|
|
2385 | #if EV_MULTIPLICITY |
4171 | #if EV_MULTIPLICITY |
|
|
4172 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
4173 | #endif |
|
|
4174 | #if EV_USE_SIGNALFD |
|
|
4175 | if (sigfd >= 0) |
|
|
4176 | { |
|
|
4177 | sigset_t ss; |
|
|
4178 | |
|
|
4179 | sigemptyset (&ss); |
|
|
4180 | sigaddset (&ss, w->signum); |
|
|
4181 | sigdelset (&sigfd_set, w->signum); |
|
|
4182 | |
|
|
4183 | signalfd (sigfd, &sigfd_set, 0); |
|
|
4184 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
4185 | } |
|
|
4186 | else |
|
|
4187 | #endif |
|
|
4188 | signal (w->signum, SIG_DFL); |
|
|
4189 | } |
|
|
4190 | |
|
|
4191 | EV_FREQUENT_CHECK; |
|
|
4192 | } |
|
|
4193 | |
|
|
4194 | #endif |
|
|
4195 | |
|
|
4196 | #if EV_CHILD_ENABLE |
|
|
4197 | |
|
|
4198 | void |
|
|
4199 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
|
|
4200 | { |
|
|
4201 | #if EV_MULTIPLICITY |
2386 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4202 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2387 | #endif |
4203 | #endif |
2388 | if (expect_false (ev_is_active (w))) |
4204 | if (expect_false (ev_is_active (w))) |
2389 | return; |
4205 | return; |
2390 | |
4206 | |
2391 | EV_FREQUENT_CHECK; |
4207 | EV_FREQUENT_CHECK; |
2392 | |
4208 | |
2393 | ev_start (EV_A_ (W)w, 1); |
4209 | ev_start (EV_A_ (W)w, 1); |
2394 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4210 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2395 | |
4211 | |
2396 | EV_FREQUENT_CHECK; |
4212 | EV_FREQUENT_CHECK; |
2397 | } |
4213 | } |
2398 | |
4214 | |
2399 | void |
4215 | void |
2400 | ev_child_stop (EV_P_ ev_child *w) |
4216 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2401 | { |
4217 | { |
2402 | clear_pending (EV_A_ (W)w); |
4218 | clear_pending (EV_A_ (W)w); |
2403 | if (expect_false (!ev_is_active (w))) |
4219 | if (expect_false (!ev_is_active (w))) |
2404 | return; |
4220 | return; |
2405 | |
4221 | |
2406 | EV_FREQUENT_CHECK; |
4222 | EV_FREQUENT_CHECK; |
2407 | |
4223 | |
2408 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4224 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2409 | ev_stop (EV_A_ (W)w); |
4225 | ev_stop (EV_A_ (W)w); |
2410 | |
4226 | |
2411 | EV_FREQUENT_CHECK; |
4227 | EV_FREQUENT_CHECK; |
2412 | } |
4228 | } |
|
|
4229 | |
|
|
4230 | #endif |
2413 | |
4231 | |
2414 | #if EV_STAT_ENABLE |
4232 | #if EV_STAT_ENABLE |
2415 | |
4233 | |
2416 | # ifdef _WIN32 |
4234 | # ifdef _WIN32 |
2417 | # undef lstat |
4235 | # undef lstat |
2418 | # define lstat(a,b) _stati64 (a,b) |
4236 | # define lstat(a,b) _stati64 (a,b) |
2419 | # endif |
4237 | # endif |
2420 | |
4238 | |
2421 | #define DEF_STAT_INTERVAL 5.0074891 |
4239 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
4240 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2422 | #define MIN_STAT_INTERVAL 0.1074891 |
4241 | #define MIN_STAT_INTERVAL 0.1074891 |
2423 | |
4242 | |
2424 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4243 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2425 | |
4244 | |
2426 | #if EV_USE_INOTIFY |
4245 | #if EV_USE_INOTIFY |
2427 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2428 | |
4246 | |
2429 | static void noinline |
4247 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
4248 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
4249 | |
|
|
4250 | noinline |
|
|
4251 | static void |
2430 | infy_add (EV_P_ ev_stat *w) |
4252 | infy_add (EV_P_ ev_stat *w) |
2431 | { |
4253 | { |
2432 | 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); |
4254 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4255 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4256 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4257 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2433 | |
4258 | |
2434 | if (w->wd < 0) |
4259 | if (w->wd >= 0) |
|
|
4260 | { |
|
|
4261 | struct statfs sfs; |
|
|
4262 | |
|
|
4263 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
4264 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
4265 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
4266 | |
|
|
4267 | if (!fs_2625) |
|
|
4268 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4269 | else if (!statfs (w->path, &sfs) |
|
|
4270 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4271 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4272 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
4273 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4274 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4275 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4276 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
4277 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4278 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
4279 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
4280 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
4281 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
4282 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
4283 | else |
|
|
4284 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2435 | { |
4285 | } |
2436 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
4286 | else |
|
|
4287 | { |
|
|
4288 | /* can't use inotify, continue to stat */ |
|
|
4289 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2437 | |
4290 | |
2438 | /* monitor some parent directory for speedup hints */ |
4291 | /* if path is not there, monitor some parent directory for speedup hints */ |
2439 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
4292 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2440 | /* but an efficiency issue only */ |
4293 | /* but an efficiency issue only */ |
2441 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
4294 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2442 | { |
4295 | { |
2443 | char path [4096]; |
4296 | char path [4096]; |
2444 | strcpy (path, w->path); |
4297 | strcpy (path, w->path); |
… | |
… | |
2448 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
4301 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2449 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
4302 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2450 | |
4303 | |
2451 | char *pend = strrchr (path, '/'); |
4304 | char *pend = strrchr (path, '/'); |
2452 | |
4305 | |
2453 | if (!pend) |
4306 | if (!pend || pend == path) |
2454 | break; /* whoops, no '/', complain to your admin */ |
4307 | break; |
2455 | |
4308 | |
2456 | *pend = 0; |
4309 | *pend = 0; |
2457 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4310 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2458 | } |
4311 | } |
2459 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4312 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2460 | } |
4313 | } |
2461 | } |
4314 | } |
2462 | else |
|
|
2463 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2464 | |
4315 | |
2465 | if (w->wd >= 0) |
4316 | if (w->wd >= 0) |
2466 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4317 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2467 | } |
|
|
2468 | |
4318 | |
2469 | static void noinline |
4319 | /* now re-arm timer, if required */ |
|
|
4320 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
4321 | ev_timer_again (EV_A_ &w->timer); |
|
|
4322 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4323 | } |
|
|
4324 | |
|
|
4325 | noinline |
|
|
4326 | static void |
2470 | infy_del (EV_P_ ev_stat *w) |
4327 | infy_del (EV_P_ ev_stat *w) |
2471 | { |
4328 | { |
2472 | int slot; |
4329 | int slot; |
2473 | int wd = w->wd; |
4330 | int wd = w->wd; |
2474 | |
4331 | |
2475 | if (wd < 0) |
4332 | if (wd < 0) |
2476 | return; |
4333 | return; |
2477 | |
4334 | |
2478 | w->wd = -2; |
4335 | w->wd = -2; |
2479 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4336 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2480 | wlist_del (&fs_hash [slot].head, (WL)w); |
4337 | wlist_del (&fs_hash [slot].head, (WL)w); |
2481 | |
4338 | |
2482 | /* remove this watcher, if others are watching it, they will rearm */ |
4339 | /* remove this watcher, if others are watching it, they will rearm */ |
2483 | inotify_rm_watch (fs_fd, wd); |
4340 | inotify_rm_watch (fs_fd, wd); |
2484 | } |
4341 | } |
2485 | |
4342 | |
2486 | static void noinline |
4343 | noinline |
|
|
4344 | static void |
2487 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4345 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2488 | { |
4346 | { |
2489 | if (slot < 0) |
4347 | if (slot < 0) |
2490 | /* overflow, need to check for all hahs slots */ |
4348 | /* overflow, need to check for all hash slots */ |
2491 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4349 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2492 | infy_wd (EV_A_ slot, wd, ev); |
4350 | infy_wd (EV_A_ slot, wd, ev); |
2493 | else |
4351 | else |
2494 | { |
4352 | { |
2495 | WL w_; |
4353 | WL w_; |
2496 | |
4354 | |
2497 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4355 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2498 | { |
4356 | { |
2499 | ev_stat *w = (ev_stat *)w_; |
4357 | ev_stat *w = (ev_stat *)w_; |
2500 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4358 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2501 | |
4359 | |
2502 | if (w->wd == wd || wd == -1) |
4360 | if (w->wd == wd || wd == -1) |
2503 | { |
4361 | { |
2504 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4362 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2505 | { |
4363 | { |
|
|
4364 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2506 | w->wd = -1; |
4365 | w->wd = -1; |
2507 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4366 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2508 | } |
4367 | } |
2509 | |
4368 | |
2510 | stat_timer_cb (EV_A_ &w->timer, 0); |
4369 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2515 | |
4374 | |
2516 | static void |
4375 | static void |
2517 | infy_cb (EV_P_ ev_io *w, int revents) |
4376 | infy_cb (EV_P_ ev_io *w, int revents) |
2518 | { |
4377 | { |
2519 | char buf [EV_INOTIFY_BUFSIZE]; |
4378 | char buf [EV_INOTIFY_BUFSIZE]; |
2520 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2521 | int ofs; |
4379 | int ofs; |
2522 | int len = read (fs_fd, buf, sizeof (buf)); |
4380 | int len = read (fs_fd, buf, sizeof (buf)); |
2523 | |
4381 | |
2524 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4382 | for (ofs = 0; ofs < len; ) |
|
|
4383 | { |
|
|
4384 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2525 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4385 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4386 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4387 | } |
2526 | } |
4388 | } |
2527 | |
4389 | |
2528 | void inline_size |
4390 | inline_size ecb_cold |
|
|
4391 | void |
|
|
4392 | ev_check_2625 (EV_P) |
|
|
4393 | { |
|
|
4394 | /* kernels < 2.6.25 are borked |
|
|
4395 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
4396 | */ |
|
|
4397 | if (ev_linux_version () < 0x020619) |
|
|
4398 | return; |
|
|
4399 | |
|
|
4400 | fs_2625 = 1; |
|
|
4401 | } |
|
|
4402 | |
|
|
4403 | inline_size int |
|
|
4404 | infy_newfd (void) |
|
|
4405 | { |
|
|
4406 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4407 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4408 | if (fd >= 0) |
|
|
4409 | return fd; |
|
|
4410 | #endif |
|
|
4411 | return inotify_init (); |
|
|
4412 | } |
|
|
4413 | |
|
|
4414 | inline_size void |
2529 | infy_init (EV_P) |
4415 | infy_init (EV_P) |
2530 | { |
4416 | { |
2531 | if (fs_fd != -2) |
4417 | if (fs_fd != -2) |
2532 | return; |
4418 | return; |
2533 | |
4419 | |
|
|
4420 | fs_fd = -1; |
|
|
4421 | |
|
|
4422 | ev_check_2625 (EV_A); |
|
|
4423 | |
2534 | fs_fd = inotify_init (); |
4424 | fs_fd = infy_newfd (); |
2535 | |
4425 | |
2536 | if (fs_fd >= 0) |
4426 | if (fs_fd >= 0) |
2537 | { |
4427 | { |
|
|
4428 | fd_intern (fs_fd); |
2538 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4429 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2539 | ev_set_priority (&fs_w, EV_MAXPRI); |
4430 | ev_set_priority (&fs_w, EV_MAXPRI); |
2540 | ev_io_start (EV_A_ &fs_w); |
4431 | ev_io_start (EV_A_ &fs_w); |
|
|
4432 | ev_unref (EV_A); |
2541 | } |
4433 | } |
2542 | } |
4434 | } |
2543 | |
4435 | |
2544 | void inline_size |
4436 | inline_size void |
2545 | infy_fork (EV_P) |
4437 | infy_fork (EV_P) |
2546 | { |
4438 | { |
2547 | int slot; |
4439 | int slot; |
2548 | |
4440 | |
2549 | if (fs_fd < 0) |
4441 | if (fs_fd < 0) |
2550 | return; |
4442 | return; |
2551 | |
4443 | |
|
|
4444 | ev_ref (EV_A); |
|
|
4445 | ev_io_stop (EV_A_ &fs_w); |
2552 | close (fs_fd); |
4446 | close (fs_fd); |
2553 | fs_fd = inotify_init (); |
4447 | fs_fd = infy_newfd (); |
2554 | |
4448 | |
|
|
4449 | if (fs_fd >= 0) |
|
|
4450 | { |
|
|
4451 | fd_intern (fs_fd); |
|
|
4452 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4453 | ev_io_start (EV_A_ &fs_w); |
|
|
4454 | ev_unref (EV_A); |
|
|
4455 | } |
|
|
4456 | |
2555 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4457 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2556 | { |
4458 | { |
2557 | WL w_ = fs_hash [slot].head; |
4459 | WL w_ = fs_hash [slot].head; |
2558 | fs_hash [slot].head = 0; |
4460 | fs_hash [slot].head = 0; |
2559 | |
4461 | |
2560 | while (w_) |
4462 | while (w_) |
… | |
… | |
2565 | w->wd = -1; |
4467 | w->wd = -1; |
2566 | |
4468 | |
2567 | if (fs_fd >= 0) |
4469 | if (fs_fd >= 0) |
2568 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4470 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2569 | else |
4471 | else |
|
|
4472 | { |
|
|
4473 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4474 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2570 | ev_timer_start (EV_A_ &w->timer); |
4475 | ev_timer_again (EV_A_ &w->timer); |
|
|
4476 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4477 | } |
2571 | } |
4478 | } |
2572 | |
|
|
2573 | } |
4479 | } |
2574 | } |
4480 | } |
2575 | |
4481 | |
2576 | #endif |
4482 | #endif |
2577 | |
4483 | |
… | |
… | |
2580 | #else |
4486 | #else |
2581 | # define EV_LSTAT(p,b) lstat (p, b) |
4487 | # define EV_LSTAT(p,b) lstat (p, b) |
2582 | #endif |
4488 | #endif |
2583 | |
4489 | |
2584 | void |
4490 | void |
2585 | ev_stat_stat (EV_P_ ev_stat *w) |
4491 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
2586 | { |
4492 | { |
2587 | if (lstat (w->path, &w->attr) < 0) |
4493 | if (lstat (w->path, &w->attr) < 0) |
2588 | w->attr.st_nlink = 0; |
4494 | w->attr.st_nlink = 0; |
2589 | else if (!w->attr.st_nlink) |
4495 | else if (!w->attr.st_nlink) |
2590 | w->attr.st_nlink = 1; |
4496 | w->attr.st_nlink = 1; |
2591 | } |
4497 | } |
2592 | |
4498 | |
2593 | static void noinline |
4499 | noinline |
|
|
4500 | static void |
2594 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4501 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2595 | { |
4502 | { |
2596 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4503 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2597 | |
4504 | |
2598 | /* we copy this here each the time so that */ |
4505 | ev_statdata prev = w->attr; |
2599 | /* prev has the old value when the callback gets invoked */ |
|
|
2600 | w->prev = w->attr; |
|
|
2601 | ev_stat_stat (EV_A_ w); |
4506 | ev_stat_stat (EV_A_ w); |
2602 | |
4507 | |
2603 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4508 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2604 | if ( |
4509 | if ( |
2605 | w->prev.st_dev != w->attr.st_dev |
4510 | prev.st_dev != w->attr.st_dev |
2606 | || w->prev.st_ino != w->attr.st_ino |
4511 | || prev.st_ino != w->attr.st_ino |
2607 | || w->prev.st_mode != w->attr.st_mode |
4512 | || prev.st_mode != w->attr.st_mode |
2608 | || w->prev.st_nlink != w->attr.st_nlink |
4513 | || prev.st_nlink != w->attr.st_nlink |
2609 | || w->prev.st_uid != w->attr.st_uid |
4514 | || prev.st_uid != w->attr.st_uid |
2610 | || w->prev.st_gid != w->attr.st_gid |
4515 | || prev.st_gid != w->attr.st_gid |
2611 | || w->prev.st_rdev != w->attr.st_rdev |
4516 | || prev.st_rdev != w->attr.st_rdev |
2612 | || w->prev.st_size != w->attr.st_size |
4517 | || prev.st_size != w->attr.st_size |
2613 | || w->prev.st_atime != w->attr.st_atime |
4518 | || prev.st_atime != w->attr.st_atime |
2614 | || w->prev.st_mtime != w->attr.st_mtime |
4519 | || prev.st_mtime != w->attr.st_mtime |
2615 | || w->prev.st_ctime != w->attr.st_ctime |
4520 | || prev.st_ctime != w->attr.st_ctime |
2616 | ) { |
4521 | ) { |
|
|
4522 | /* we only update w->prev on actual differences */ |
|
|
4523 | /* in case we test more often than invoke the callback, */ |
|
|
4524 | /* to ensure that prev is always different to attr */ |
|
|
4525 | w->prev = prev; |
|
|
4526 | |
2617 | #if EV_USE_INOTIFY |
4527 | #if EV_USE_INOTIFY |
|
|
4528 | if (fs_fd >= 0) |
|
|
4529 | { |
2618 | infy_del (EV_A_ w); |
4530 | infy_del (EV_A_ w); |
2619 | infy_add (EV_A_ w); |
4531 | infy_add (EV_A_ w); |
2620 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
4532 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
4533 | } |
2621 | #endif |
4534 | #endif |
2622 | |
4535 | |
2623 | ev_feed_event (EV_A_ w, EV_STAT); |
4536 | ev_feed_event (EV_A_ w, EV_STAT); |
2624 | } |
4537 | } |
2625 | } |
4538 | } |
2626 | |
4539 | |
2627 | void |
4540 | void |
2628 | ev_stat_start (EV_P_ ev_stat *w) |
4541 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
2629 | { |
4542 | { |
2630 | if (expect_false (ev_is_active (w))) |
4543 | if (expect_false (ev_is_active (w))) |
2631 | return; |
4544 | return; |
2632 | |
4545 | |
2633 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2634 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2635 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2636 | |
|
|
2637 | ev_stat_stat (EV_A_ w); |
4546 | ev_stat_stat (EV_A_ w); |
2638 | |
4547 | |
|
|
4548 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2639 | if (w->interval < MIN_STAT_INTERVAL) |
4549 | w->interval = MIN_STAT_INTERVAL; |
2640 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2641 | |
4550 | |
2642 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
4551 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2643 | ev_set_priority (&w->timer, ev_priority (w)); |
4552 | ev_set_priority (&w->timer, ev_priority (w)); |
2644 | |
4553 | |
2645 | #if EV_USE_INOTIFY |
4554 | #if EV_USE_INOTIFY |
2646 | infy_init (EV_A); |
4555 | infy_init (EV_A); |
2647 | |
4556 | |
2648 | if (fs_fd >= 0) |
4557 | if (fs_fd >= 0) |
2649 | infy_add (EV_A_ w); |
4558 | infy_add (EV_A_ w); |
2650 | else |
4559 | else |
2651 | #endif |
4560 | #endif |
|
|
4561 | { |
2652 | ev_timer_start (EV_A_ &w->timer); |
4562 | ev_timer_again (EV_A_ &w->timer); |
|
|
4563 | ev_unref (EV_A); |
|
|
4564 | } |
2653 | |
4565 | |
2654 | ev_start (EV_A_ (W)w, 1); |
4566 | ev_start (EV_A_ (W)w, 1); |
2655 | |
4567 | |
2656 | EV_FREQUENT_CHECK; |
4568 | EV_FREQUENT_CHECK; |
2657 | } |
4569 | } |
2658 | |
4570 | |
2659 | void |
4571 | void |
2660 | ev_stat_stop (EV_P_ ev_stat *w) |
4572 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
2661 | { |
4573 | { |
2662 | clear_pending (EV_A_ (W)w); |
4574 | clear_pending (EV_A_ (W)w); |
2663 | if (expect_false (!ev_is_active (w))) |
4575 | if (expect_false (!ev_is_active (w))) |
2664 | return; |
4576 | return; |
2665 | |
4577 | |
2666 | EV_FREQUENT_CHECK; |
4578 | EV_FREQUENT_CHECK; |
2667 | |
4579 | |
2668 | #if EV_USE_INOTIFY |
4580 | #if EV_USE_INOTIFY |
2669 | infy_del (EV_A_ w); |
4581 | infy_del (EV_A_ w); |
2670 | #endif |
4582 | #endif |
|
|
4583 | |
|
|
4584 | if (ev_is_active (&w->timer)) |
|
|
4585 | { |
|
|
4586 | ev_ref (EV_A); |
2671 | ev_timer_stop (EV_A_ &w->timer); |
4587 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4588 | } |
2672 | |
4589 | |
2673 | ev_stop (EV_A_ (W)w); |
4590 | ev_stop (EV_A_ (W)w); |
2674 | |
4591 | |
2675 | EV_FREQUENT_CHECK; |
4592 | EV_FREQUENT_CHECK; |
2676 | } |
4593 | } |
2677 | #endif |
4594 | #endif |
2678 | |
4595 | |
2679 | #if EV_IDLE_ENABLE |
4596 | #if EV_IDLE_ENABLE |
2680 | void |
4597 | void |
2681 | ev_idle_start (EV_P_ ev_idle *w) |
4598 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
2682 | { |
4599 | { |
2683 | if (expect_false (ev_is_active (w))) |
4600 | if (expect_false (ev_is_active (w))) |
2684 | return; |
4601 | return; |
2685 | |
4602 | |
2686 | pri_adjust (EV_A_ (W)w); |
4603 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
2699 | |
4616 | |
2700 | EV_FREQUENT_CHECK; |
4617 | EV_FREQUENT_CHECK; |
2701 | } |
4618 | } |
2702 | |
4619 | |
2703 | void |
4620 | void |
2704 | ev_idle_stop (EV_P_ ev_idle *w) |
4621 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
2705 | { |
4622 | { |
2706 | clear_pending (EV_A_ (W)w); |
4623 | clear_pending (EV_A_ (W)w); |
2707 | if (expect_false (!ev_is_active (w))) |
4624 | if (expect_false (!ev_is_active (w))) |
2708 | return; |
4625 | return; |
2709 | |
4626 | |
… | |
… | |
2721 | |
4638 | |
2722 | EV_FREQUENT_CHECK; |
4639 | EV_FREQUENT_CHECK; |
2723 | } |
4640 | } |
2724 | #endif |
4641 | #endif |
2725 | |
4642 | |
|
|
4643 | #if EV_PREPARE_ENABLE |
2726 | void |
4644 | void |
2727 | ev_prepare_start (EV_P_ ev_prepare *w) |
4645 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
2728 | { |
4646 | { |
2729 | if (expect_false (ev_is_active (w))) |
4647 | if (expect_false (ev_is_active (w))) |
2730 | return; |
4648 | return; |
2731 | |
4649 | |
2732 | EV_FREQUENT_CHECK; |
4650 | EV_FREQUENT_CHECK; |
… | |
… | |
2737 | |
4655 | |
2738 | EV_FREQUENT_CHECK; |
4656 | EV_FREQUENT_CHECK; |
2739 | } |
4657 | } |
2740 | |
4658 | |
2741 | void |
4659 | void |
2742 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4660 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
2743 | { |
4661 | { |
2744 | clear_pending (EV_A_ (W)w); |
4662 | clear_pending (EV_A_ (W)w); |
2745 | if (expect_false (!ev_is_active (w))) |
4663 | if (expect_false (!ev_is_active (w))) |
2746 | return; |
4664 | return; |
2747 | |
4665 | |
… | |
… | |
2756 | |
4674 | |
2757 | ev_stop (EV_A_ (W)w); |
4675 | ev_stop (EV_A_ (W)w); |
2758 | |
4676 | |
2759 | EV_FREQUENT_CHECK; |
4677 | EV_FREQUENT_CHECK; |
2760 | } |
4678 | } |
|
|
4679 | #endif |
2761 | |
4680 | |
|
|
4681 | #if EV_CHECK_ENABLE |
2762 | void |
4682 | void |
2763 | ev_check_start (EV_P_ ev_check *w) |
4683 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
2764 | { |
4684 | { |
2765 | if (expect_false (ev_is_active (w))) |
4685 | if (expect_false (ev_is_active (w))) |
2766 | return; |
4686 | return; |
2767 | |
4687 | |
2768 | EV_FREQUENT_CHECK; |
4688 | EV_FREQUENT_CHECK; |
… | |
… | |
2773 | |
4693 | |
2774 | EV_FREQUENT_CHECK; |
4694 | EV_FREQUENT_CHECK; |
2775 | } |
4695 | } |
2776 | |
4696 | |
2777 | void |
4697 | void |
2778 | ev_check_stop (EV_P_ ev_check *w) |
4698 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
2779 | { |
4699 | { |
2780 | clear_pending (EV_A_ (W)w); |
4700 | clear_pending (EV_A_ (W)w); |
2781 | if (expect_false (!ev_is_active (w))) |
4701 | if (expect_false (!ev_is_active (w))) |
2782 | return; |
4702 | return; |
2783 | |
4703 | |
… | |
… | |
2792 | |
4712 | |
2793 | ev_stop (EV_A_ (W)w); |
4713 | ev_stop (EV_A_ (W)w); |
2794 | |
4714 | |
2795 | EV_FREQUENT_CHECK; |
4715 | EV_FREQUENT_CHECK; |
2796 | } |
4716 | } |
|
|
4717 | #endif |
2797 | |
4718 | |
2798 | #if EV_EMBED_ENABLE |
4719 | #if EV_EMBED_ENABLE |
2799 | void noinline |
4720 | noinline |
|
|
4721 | void |
2800 | ev_embed_sweep (EV_P_ ev_embed *w) |
4722 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
2801 | { |
4723 | { |
2802 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4724 | ev_run (w->other, EVRUN_NOWAIT); |
2803 | } |
4725 | } |
2804 | |
4726 | |
2805 | static void |
4727 | static void |
2806 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4728 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2807 | { |
4729 | { |
2808 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4730 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2809 | |
4731 | |
2810 | if (ev_cb (w)) |
4732 | if (ev_cb (w)) |
2811 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4733 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2812 | else |
4734 | else |
2813 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4735 | ev_run (w->other, EVRUN_NOWAIT); |
2814 | } |
4736 | } |
2815 | |
4737 | |
2816 | static void |
4738 | static void |
2817 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4739 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2818 | { |
4740 | { |
2819 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4741 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2820 | |
4742 | |
2821 | { |
4743 | { |
2822 | struct ev_loop *loop = w->other; |
4744 | EV_P = w->other; |
2823 | |
4745 | |
2824 | while (fdchangecnt) |
4746 | while (fdchangecnt) |
2825 | { |
4747 | { |
2826 | fd_reify (EV_A); |
4748 | fd_reify (EV_A); |
2827 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4749 | ev_run (EV_A_ EVRUN_NOWAIT); |
2828 | } |
4750 | } |
2829 | } |
4751 | } |
|
|
4752 | } |
|
|
4753 | |
|
|
4754 | static void |
|
|
4755 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
4756 | { |
|
|
4757 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
4758 | |
|
|
4759 | ev_embed_stop (EV_A_ w); |
|
|
4760 | |
|
|
4761 | { |
|
|
4762 | EV_P = w->other; |
|
|
4763 | |
|
|
4764 | ev_loop_fork (EV_A); |
|
|
4765 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4766 | } |
|
|
4767 | |
|
|
4768 | ev_embed_start (EV_A_ w); |
2830 | } |
4769 | } |
2831 | |
4770 | |
2832 | #if 0 |
4771 | #if 0 |
2833 | static void |
4772 | static void |
2834 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4773 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2836 | ev_idle_stop (EV_A_ idle); |
4775 | ev_idle_stop (EV_A_ idle); |
2837 | } |
4776 | } |
2838 | #endif |
4777 | #endif |
2839 | |
4778 | |
2840 | void |
4779 | void |
2841 | ev_embed_start (EV_P_ ev_embed *w) |
4780 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
2842 | { |
4781 | { |
2843 | if (expect_false (ev_is_active (w))) |
4782 | if (expect_false (ev_is_active (w))) |
2844 | return; |
4783 | return; |
2845 | |
4784 | |
2846 | { |
4785 | { |
2847 | struct ev_loop *loop = w->other; |
4786 | EV_P = w->other; |
2848 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4787 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2849 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4788 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2850 | } |
4789 | } |
2851 | |
4790 | |
2852 | EV_FREQUENT_CHECK; |
4791 | EV_FREQUENT_CHECK; |
2853 | |
4792 | |
… | |
… | |
2856 | |
4795 | |
2857 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4796 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2858 | ev_set_priority (&w->prepare, EV_MINPRI); |
4797 | ev_set_priority (&w->prepare, EV_MINPRI); |
2859 | ev_prepare_start (EV_A_ &w->prepare); |
4798 | ev_prepare_start (EV_A_ &w->prepare); |
2860 | |
4799 | |
|
|
4800 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
4801 | ev_fork_start (EV_A_ &w->fork); |
|
|
4802 | |
2861 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4803 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2862 | |
4804 | |
2863 | ev_start (EV_A_ (W)w, 1); |
4805 | ev_start (EV_A_ (W)w, 1); |
2864 | |
4806 | |
2865 | EV_FREQUENT_CHECK; |
4807 | EV_FREQUENT_CHECK; |
2866 | } |
4808 | } |
2867 | |
4809 | |
2868 | void |
4810 | void |
2869 | ev_embed_stop (EV_P_ ev_embed *w) |
4811 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
2870 | { |
4812 | { |
2871 | clear_pending (EV_A_ (W)w); |
4813 | clear_pending (EV_A_ (W)w); |
2872 | if (expect_false (!ev_is_active (w))) |
4814 | if (expect_false (!ev_is_active (w))) |
2873 | return; |
4815 | return; |
2874 | |
4816 | |
2875 | EV_FREQUENT_CHECK; |
4817 | EV_FREQUENT_CHECK; |
2876 | |
4818 | |
2877 | ev_io_stop (EV_A_ &w->io); |
4819 | ev_io_stop (EV_A_ &w->io); |
2878 | ev_prepare_stop (EV_A_ &w->prepare); |
4820 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
4821 | ev_fork_stop (EV_A_ &w->fork); |
2879 | |
4822 | |
2880 | ev_stop (EV_A_ (W)w); |
4823 | ev_stop (EV_A_ (W)w); |
2881 | |
4824 | |
2882 | EV_FREQUENT_CHECK; |
4825 | EV_FREQUENT_CHECK; |
2883 | } |
4826 | } |
2884 | #endif |
4827 | #endif |
2885 | |
4828 | |
2886 | #if EV_FORK_ENABLE |
4829 | #if EV_FORK_ENABLE |
2887 | void |
4830 | void |
2888 | ev_fork_start (EV_P_ ev_fork *w) |
4831 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
2889 | { |
4832 | { |
2890 | if (expect_false (ev_is_active (w))) |
4833 | if (expect_false (ev_is_active (w))) |
2891 | return; |
4834 | return; |
2892 | |
4835 | |
2893 | EV_FREQUENT_CHECK; |
4836 | EV_FREQUENT_CHECK; |
… | |
… | |
2898 | |
4841 | |
2899 | EV_FREQUENT_CHECK; |
4842 | EV_FREQUENT_CHECK; |
2900 | } |
4843 | } |
2901 | |
4844 | |
2902 | void |
4845 | void |
2903 | ev_fork_stop (EV_P_ ev_fork *w) |
4846 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
2904 | { |
4847 | { |
2905 | clear_pending (EV_A_ (W)w); |
4848 | clear_pending (EV_A_ (W)w); |
2906 | if (expect_false (!ev_is_active (w))) |
4849 | if (expect_false (!ev_is_active (w))) |
2907 | return; |
4850 | return; |
2908 | |
4851 | |
… | |
… | |
2919 | |
4862 | |
2920 | EV_FREQUENT_CHECK; |
4863 | EV_FREQUENT_CHECK; |
2921 | } |
4864 | } |
2922 | #endif |
4865 | #endif |
2923 | |
4866 | |
2924 | #if EV_ASYNC_ENABLE |
4867 | #if EV_CLEANUP_ENABLE |
2925 | void |
4868 | void |
2926 | ev_async_start (EV_P_ ev_async *w) |
4869 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
2927 | { |
4870 | { |
2928 | if (expect_false (ev_is_active (w))) |
4871 | if (expect_false (ev_is_active (w))) |
2929 | return; |
4872 | return; |
|
|
4873 | |
|
|
4874 | EV_FREQUENT_CHECK; |
|
|
4875 | |
|
|
4876 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4877 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4878 | cleanups [cleanupcnt - 1] = w; |
|
|
4879 | |
|
|
4880 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4881 | ev_unref (EV_A); |
|
|
4882 | EV_FREQUENT_CHECK; |
|
|
4883 | } |
|
|
4884 | |
|
|
4885 | void |
|
|
4886 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4887 | { |
|
|
4888 | clear_pending (EV_A_ (W)w); |
|
|
4889 | if (expect_false (!ev_is_active (w))) |
|
|
4890 | return; |
|
|
4891 | |
|
|
4892 | EV_FREQUENT_CHECK; |
|
|
4893 | ev_ref (EV_A); |
|
|
4894 | |
|
|
4895 | { |
|
|
4896 | int active = ev_active (w); |
|
|
4897 | |
|
|
4898 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4899 | ev_active (cleanups [active - 1]) = active; |
|
|
4900 | } |
|
|
4901 | |
|
|
4902 | ev_stop (EV_A_ (W)w); |
|
|
4903 | |
|
|
4904 | EV_FREQUENT_CHECK; |
|
|
4905 | } |
|
|
4906 | #endif |
|
|
4907 | |
|
|
4908 | #if EV_ASYNC_ENABLE |
|
|
4909 | void |
|
|
4910 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
|
|
4911 | { |
|
|
4912 | if (expect_false (ev_is_active (w))) |
|
|
4913 | return; |
|
|
4914 | |
|
|
4915 | w->sent = 0; |
2930 | |
4916 | |
2931 | evpipe_init (EV_A); |
4917 | evpipe_init (EV_A); |
2932 | |
4918 | |
2933 | EV_FREQUENT_CHECK; |
4919 | EV_FREQUENT_CHECK; |
2934 | |
4920 | |
… | |
… | |
2938 | |
4924 | |
2939 | EV_FREQUENT_CHECK; |
4925 | EV_FREQUENT_CHECK; |
2940 | } |
4926 | } |
2941 | |
4927 | |
2942 | void |
4928 | void |
2943 | ev_async_stop (EV_P_ ev_async *w) |
4929 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
2944 | { |
4930 | { |
2945 | clear_pending (EV_A_ (W)w); |
4931 | clear_pending (EV_A_ (W)w); |
2946 | if (expect_false (!ev_is_active (w))) |
4932 | if (expect_false (!ev_is_active (w))) |
2947 | return; |
4933 | return; |
2948 | |
4934 | |
… | |
… | |
2959 | |
4945 | |
2960 | EV_FREQUENT_CHECK; |
4946 | EV_FREQUENT_CHECK; |
2961 | } |
4947 | } |
2962 | |
4948 | |
2963 | void |
4949 | void |
2964 | ev_async_send (EV_P_ ev_async *w) |
4950 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
2965 | { |
4951 | { |
2966 | w->sent = 1; |
4952 | w->sent = 1; |
2967 | evpipe_write (EV_A_ &gotasync); |
4953 | evpipe_write (EV_A_ &async_pending); |
2968 | } |
4954 | } |
2969 | #endif |
4955 | #endif |
2970 | |
4956 | |
2971 | /*****************************************************************************/ |
4957 | /*****************************************************************************/ |
2972 | |
4958 | |
… | |
… | |
2992 | } |
4978 | } |
2993 | |
4979 | |
2994 | static void |
4980 | static void |
2995 | once_cb_io (EV_P_ ev_io *w, int revents) |
4981 | once_cb_io (EV_P_ ev_io *w, int revents) |
2996 | { |
4982 | { |
2997 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
4983 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
4984 | |
|
|
4985 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2998 | } |
4986 | } |
2999 | |
4987 | |
3000 | static void |
4988 | static void |
3001 | once_cb_to (EV_P_ ev_timer *w, int revents) |
4989 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3002 | { |
4990 | { |
3003 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
4991 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
3004 | } |
|
|
3005 | |
4992 | |
|
|
4993 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
|
|
4994 | } |
|
|
4995 | |
3006 | void |
4996 | void |
3007 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4997 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3008 | { |
4998 | { |
3009 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4999 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3010 | |
5000 | |
3011 | if (expect_false (!once)) |
5001 | if (expect_false (!once)) |
3012 | { |
5002 | { |
3013 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
5003 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3014 | return; |
5004 | return; |
3015 | } |
5005 | } |
3016 | |
5006 | |
3017 | once->cb = cb; |
5007 | once->cb = cb; |
3018 | once->arg = arg; |
5008 | once->arg = arg; |
… | |
… | |
3030 | ev_timer_set (&once->to, timeout, 0.); |
5020 | ev_timer_set (&once->to, timeout, 0.); |
3031 | ev_timer_start (EV_A_ &once->to); |
5021 | ev_timer_start (EV_A_ &once->to); |
3032 | } |
5022 | } |
3033 | } |
5023 | } |
3034 | |
5024 | |
|
|
5025 | /*****************************************************************************/ |
|
|
5026 | |
|
|
5027 | #if EV_WALK_ENABLE |
|
|
5028 | ecb_cold |
|
|
5029 | void |
|
|
5030 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
|
|
5031 | { |
|
|
5032 | int i, j; |
|
|
5033 | ev_watcher_list *wl, *wn; |
|
|
5034 | |
|
|
5035 | if (types & (EV_IO | EV_EMBED)) |
|
|
5036 | for (i = 0; i < anfdmax; ++i) |
|
|
5037 | for (wl = anfds [i].head; wl; ) |
|
|
5038 | { |
|
|
5039 | wn = wl->next; |
|
|
5040 | |
|
|
5041 | #if EV_EMBED_ENABLE |
|
|
5042 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
5043 | { |
|
|
5044 | if (types & EV_EMBED) |
|
|
5045 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
5046 | } |
|
|
5047 | else |
|
|
5048 | #endif |
|
|
5049 | #if EV_USE_INOTIFY |
|
|
5050 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
5051 | ; |
|
|
5052 | else |
|
|
5053 | #endif |
|
|
5054 | if ((ev_io *)wl != &pipe_w) |
|
|
5055 | if (types & EV_IO) |
|
|
5056 | cb (EV_A_ EV_IO, wl); |
|
|
5057 | |
|
|
5058 | wl = wn; |
|
|
5059 | } |
|
|
5060 | |
|
|
5061 | if (types & (EV_TIMER | EV_STAT)) |
|
|
5062 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
5063 | #if EV_STAT_ENABLE |
|
|
5064 | /*TODO: timer is not always active*/ |
|
|
5065 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
5066 | { |
|
|
5067 | if (types & EV_STAT) |
|
|
5068 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
5069 | } |
|
|
5070 | else |
|
|
5071 | #endif |
|
|
5072 | if (types & EV_TIMER) |
|
|
5073 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
5074 | |
|
|
5075 | #if EV_PERIODIC_ENABLE |
|
|
5076 | if (types & EV_PERIODIC) |
|
|
5077 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
5078 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
5079 | #endif |
|
|
5080 | |
|
|
5081 | #if EV_IDLE_ENABLE |
|
|
5082 | if (types & EV_IDLE) |
|
|
5083 | for (j = NUMPRI; j--; ) |
|
|
5084 | for (i = idlecnt [j]; i--; ) |
|
|
5085 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
5086 | #endif |
|
|
5087 | |
|
|
5088 | #if EV_FORK_ENABLE |
|
|
5089 | if (types & EV_FORK) |
|
|
5090 | for (i = forkcnt; i--; ) |
|
|
5091 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
5092 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
5093 | #endif |
|
|
5094 | |
|
|
5095 | #if EV_ASYNC_ENABLE |
|
|
5096 | if (types & EV_ASYNC) |
|
|
5097 | for (i = asynccnt; i--; ) |
|
|
5098 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
5099 | #endif |
|
|
5100 | |
|
|
5101 | #if EV_PREPARE_ENABLE |
|
|
5102 | if (types & EV_PREPARE) |
|
|
5103 | for (i = preparecnt; i--; ) |
|
|
5104 | # if EV_EMBED_ENABLE |
|
|
5105 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
5106 | # endif |
|
|
5107 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
5108 | #endif |
|
|
5109 | |
|
|
5110 | #if EV_CHECK_ENABLE |
|
|
5111 | if (types & EV_CHECK) |
|
|
5112 | for (i = checkcnt; i--; ) |
|
|
5113 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
5114 | #endif |
|
|
5115 | |
|
|
5116 | #if EV_SIGNAL_ENABLE |
|
|
5117 | if (types & EV_SIGNAL) |
|
|
5118 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
5119 | for (wl = signals [i].head; wl; ) |
|
|
5120 | { |
|
|
5121 | wn = wl->next; |
|
|
5122 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
5123 | wl = wn; |
|
|
5124 | } |
|
|
5125 | #endif |
|
|
5126 | |
|
|
5127 | #if EV_CHILD_ENABLE |
|
|
5128 | if (types & EV_CHILD) |
|
|
5129 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
5130 | for (wl = childs [i]; wl; ) |
|
|
5131 | { |
|
|
5132 | wn = wl->next; |
|
|
5133 | cb (EV_A_ EV_CHILD, wl); |
|
|
5134 | wl = wn; |
|
|
5135 | } |
|
|
5136 | #endif |
|
|
5137 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
5138 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
5139 | } |
|
|
5140 | #endif |
|
|
5141 | |
3035 | #if EV_MULTIPLICITY |
5142 | #if EV_MULTIPLICITY |
3036 | #include "ev_wrap.h" |
5143 | #include "ev_wrap.h" |
3037 | #endif |
5144 | #endif |
3038 | |
5145 | |
3039 | #ifdef __cplusplus |
|
|
3040 | } |
|
|
3041 | #endif |
|
|
3042 | |
|
|