1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
|
|
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
55 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
63 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
64 | # endif |
66 | # endif |
65 | |
67 | |
66 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
67 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
79 | # endif |
81 | # endif |
80 | # endif |
82 | # endif |
81 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
85 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
88 | # endif |
100 | # endif |
89 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
105 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
109 | # endif |
105 | |
110 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
109 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
112 | # endif |
118 | # endif |
113 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
116 | # define EV_USE_KQUEUE 1 |
|
|
117 | # else |
|
|
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
120 | # endif |
127 | # endif |
121 | |
128 | |
122 | # ifndef EV_USE_PORT |
|
|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
125 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
128 | # endif |
136 | # endif |
129 | |
137 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
135 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
136 | # endif |
145 | # endif |
137 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
138 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
139 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
140 | # define EV_USE_EVENTFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_EVENTFD 0 |
|
|
143 | # 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 |
144 | # endif |
163 | # endif |
145 | |
164 | |
146 | #endif |
165 | #endif |
147 | |
166 | |
148 | #include <math.h> |
|
|
149 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
150 | #include <fcntl.h> |
169 | #include <fcntl.h> |
151 | #include <stddef.h> |
170 | #include <stddef.h> |
152 | |
171 | |
153 | #include <stdio.h> |
172 | #include <stdio.h> |
154 | |
173 | |
155 | #include <assert.h> |
174 | #include <assert.h> |
156 | #include <errno.h> |
175 | #include <errno.h> |
157 | #include <sys/types.h> |
176 | #include <sys/types.h> |
158 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
159 | |
179 | |
160 | #include <signal.h> |
180 | #include <signal.h> |
161 | |
181 | |
162 | #ifdef EV_H |
182 | #ifdef EV_H |
163 | # include EV_H |
183 | # include EV_H |
164 | #else |
184 | #else |
165 | # 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 |
166 | #endif |
197 | #endif |
167 | |
198 | |
168 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
169 | # include <sys/time.h> |
200 | # include <sys/time.h> |
170 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
171 | # include <unistd.h> |
202 | # include <unistd.h> |
172 | #else |
203 | #else |
173 | # include <io.h> |
204 | # include <io.h> |
174 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
175 | # include <windows.h> |
207 | # include <windows.h> |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
178 | # endif |
210 | # endif |
|
|
211 | # undef EV_AVOID_STDIO |
179 | #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 |
180 | |
221 | |
181 | /* 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 */ |
|
|
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 | # error "unable to find value for NSIG, please report" |
|
|
247 | /* to make it compile regardless, just remove the above line, */ |
|
|
248 | /* but consider reporting it, too! :) */ |
|
|
249 | # define EV_NSIG 65 |
|
|
250 | #endif |
|
|
251 | |
|
|
252 | #ifndef EV_USE_FLOOR |
|
|
253 | # define EV_USE_FLOOR 0 |
|
|
254 | #endif |
182 | |
255 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
257 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
186 | # else |
259 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
188 | # endif |
261 | # endif |
189 | #endif |
262 | #endif |
190 | |
263 | |
191 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
193 | # define EV_USE_MONOTONIC 1 |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
194 | # else |
267 | # else |
195 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
196 | # endif |
269 | # endif |
197 | #endif |
270 | #endif |
198 | |
271 | |
… | |
… | |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
273 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
201 | #endif |
274 | #endif |
202 | |
275 | |
203 | #ifndef EV_USE_NANOSLEEP |
276 | #ifndef EV_USE_NANOSLEEP |
204 | # if _POSIX_C_SOURCE >= 199309L |
277 | # if _POSIX_C_SOURCE >= 199309L |
205 | # define EV_USE_NANOSLEEP 1 |
278 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
206 | # else |
279 | # else |
207 | # define EV_USE_NANOSLEEP 0 |
280 | # define EV_USE_NANOSLEEP 0 |
208 | # endif |
281 | # endif |
209 | #endif |
282 | #endif |
210 | |
283 | |
211 | #ifndef EV_USE_SELECT |
284 | #ifndef EV_USE_SELECT |
212 | # define EV_USE_SELECT 1 |
285 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
213 | #endif |
286 | #endif |
214 | |
287 | |
215 | #ifndef EV_USE_POLL |
288 | #ifndef EV_USE_POLL |
216 | # ifdef _WIN32 |
289 | # ifdef _WIN32 |
217 | # define EV_USE_POLL 0 |
290 | # define EV_USE_POLL 0 |
218 | # else |
291 | # else |
219 | # define EV_USE_POLL 1 |
292 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
220 | # endif |
293 | # endif |
221 | #endif |
294 | #endif |
222 | |
295 | |
223 | #ifndef EV_USE_EPOLL |
296 | #ifndef EV_USE_EPOLL |
224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
297 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
225 | # define EV_USE_EPOLL 1 |
298 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
226 | # else |
299 | # else |
227 | # define EV_USE_EPOLL 0 |
300 | # define EV_USE_EPOLL 0 |
228 | # endif |
301 | # endif |
229 | #endif |
302 | #endif |
230 | |
303 | |
… | |
… | |
236 | # define EV_USE_PORT 0 |
309 | # define EV_USE_PORT 0 |
237 | #endif |
310 | #endif |
238 | |
311 | |
239 | #ifndef EV_USE_INOTIFY |
312 | #ifndef EV_USE_INOTIFY |
240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
241 | # define EV_USE_INOTIFY 1 |
314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
242 | # else |
315 | # else |
243 | # define EV_USE_INOTIFY 0 |
316 | # define EV_USE_INOTIFY 0 |
244 | # endif |
317 | # endif |
245 | #endif |
318 | #endif |
246 | |
319 | |
247 | #ifndef EV_PID_HASHSIZE |
320 | #ifndef EV_PID_HASHSIZE |
248 | # if EV_MINIMAL |
321 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
249 | # define EV_PID_HASHSIZE 1 |
|
|
250 | # else |
|
|
251 | # define EV_PID_HASHSIZE 16 |
|
|
252 | # endif |
|
|
253 | #endif |
322 | #endif |
254 | |
323 | |
255 | #ifndef EV_INOTIFY_HASHSIZE |
324 | #ifndef EV_INOTIFY_HASHSIZE |
256 | # if EV_MINIMAL |
325 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
257 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
258 | # else |
|
|
259 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
260 | # endif |
|
|
261 | #endif |
326 | #endif |
262 | |
327 | |
263 | #ifndef EV_USE_EVENTFD |
328 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
329 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
330 | # define EV_USE_EVENTFD EV_FEATURE_OS |
266 | # else |
331 | # else |
267 | # define EV_USE_EVENTFD 0 |
332 | # define EV_USE_EVENTFD 0 |
|
|
333 | # endif |
|
|
334 | #endif |
|
|
335 | |
|
|
336 | #ifndef EV_USE_SIGNALFD |
|
|
337 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
338 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
339 | # else |
|
|
340 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
341 | # endif |
269 | #endif |
342 | #endif |
270 | |
343 | |
271 | #if 0 /* debugging */ |
344 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
345 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
346 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
347 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
348 | #endif |
276 | |
349 | |
277 | #ifndef EV_VERIFY |
350 | #ifndef EV_VERIFY |
278 | # define EV_VERIFY !EV_MINIMAL |
351 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
279 | #endif |
352 | #endif |
280 | |
353 | |
281 | #ifndef EV_USE_4HEAP |
354 | #ifndef EV_USE_4HEAP |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
283 | #endif |
356 | #endif |
284 | |
357 | |
285 | #ifndef EV_HEAP_CACHE_AT |
358 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
360 | #endif |
|
|
361 | |
|
|
362 | #ifdef ANDROID |
|
|
363 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
364 | # undef EV_USE_SELECT |
|
|
365 | # define EV_USE_SELECT 0 |
|
|
366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
367 | # undef EV_USE_CLOCK_SYSCALL |
|
|
368 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
369 | #endif |
|
|
370 | |
|
|
371 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
372 | #ifdef _AIX |
|
|
373 | /* AIX has a completely broken poll.h header */ |
|
|
374 | # undef EV_USE_POLL |
|
|
375 | # define EV_USE_POLL 0 |
287 | #endif |
376 | #endif |
288 | |
377 | |
289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
378 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
290 | /* which makes programs even slower. might work on other unices, too. */ |
379 | /* which makes programs even slower. might work on other unices, too. */ |
291 | #if EV_USE_CLOCK_SYSCALL |
380 | #if EV_USE_CLOCK_SYSCALL |
292 | # include <syscall.h> |
381 | # include <sys/syscall.h> |
293 | # ifdef SYS_clock_gettime |
382 | # ifdef SYS_clock_gettime |
294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
383 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
295 | # undef EV_USE_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
296 | # define EV_USE_MONOTONIC 1 |
385 | # define EV_USE_MONOTONIC 1 |
297 | # else |
386 | # else |
… | |
… | |
316 | # undef EV_USE_INOTIFY |
405 | # undef EV_USE_INOTIFY |
317 | # define EV_USE_INOTIFY 0 |
406 | # define EV_USE_INOTIFY 0 |
318 | #endif |
407 | #endif |
319 | |
408 | |
320 | #if !EV_USE_NANOSLEEP |
409 | #if !EV_USE_NANOSLEEP |
321 | # ifndef _WIN32 |
410 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
411 | # if !defined _WIN32 && !defined __hpux |
322 | # include <sys/select.h> |
412 | # include <sys/select.h> |
323 | # endif |
413 | # endif |
324 | #endif |
414 | #endif |
325 | |
415 | |
326 | #if EV_USE_INOTIFY |
416 | #if EV_USE_INOTIFY |
327 | # include <sys/utsname.h> |
|
|
328 | # include <sys/statfs.h> |
417 | # include <sys/statfs.h> |
329 | # include <sys/inotify.h> |
418 | # include <sys/inotify.h> |
330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
419 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
331 | # ifndef IN_DONT_FOLLOW |
420 | # ifndef IN_DONT_FOLLOW |
332 | # undef EV_USE_INOTIFY |
421 | # undef EV_USE_INOTIFY |
333 | # define EV_USE_INOTIFY 0 |
422 | # define EV_USE_INOTIFY 0 |
334 | # endif |
423 | # endif |
335 | #endif |
424 | #endif |
336 | |
425 | |
337 | #if EV_SELECT_IS_WINSOCKET |
|
|
338 | # include <winsock.h> |
|
|
339 | #endif |
|
|
340 | |
|
|
341 | #if EV_USE_EVENTFD |
426 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
428 | # include <stdint.h> |
344 | # ifdef __cplusplus |
429 | # ifndef EFD_NONBLOCK |
345 | extern "C" { |
430 | # define EFD_NONBLOCK O_NONBLOCK |
346 | # endif |
431 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
432 | # ifndef EFD_CLOEXEC |
348 | # ifdef __cplusplus |
433 | # ifdef O_CLOEXEC |
349 | } |
434 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
435 | # else |
|
|
436 | # define EFD_CLOEXEC 02000000 |
|
|
437 | # endif |
350 | # endif |
438 | # endif |
|
|
439 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
440 | #endif |
|
|
441 | |
|
|
442 | #if EV_USE_SIGNALFD |
|
|
443 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
444 | # include <stdint.h> |
|
|
445 | # ifndef SFD_NONBLOCK |
|
|
446 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
447 | # endif |
|
|
448 | # ifndef SFD_CLOEXEC |
|
|
449 | # ifdef O_CLOEXEC |
|
|
450 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
451 | # else |
|
|
452 | # define SFD_CLOEXEC 02000000 |
|
|
453 | # endif |
|
|
454 | # endif |
|
|
455 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
456 | |
|
|
457 | struct signalfd_siginfo |
|
|
458 | { |
|
|
459 | uint32_t ssi_signo; |
|
|
460 | char pad[128 - sizeof (uint32_t)]; |
|
|
461 | }; |
351 | #endif |
462 | #endif |
352 | |
463 | |
353 | /**/ |
464 | /**/ |
354 | |
465 | |
355 | #if EV_VERIFY >= 3 |
466 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
467 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
357 | #else |
468 | #else |
358 | # define EV_FREQUENT_CHECK do { } while (0) |
469 | # define EV_FREQUENT_CHECK do { } while (0) |
359 | #endif |
470 | #endif |
360 | |
471 | |
361 | /* |
472 | /* |
362 | * This is used to avoid floating point rounding problems. |
473 | * This is used to work around floating point rounding problems. |
363 | * It is added to ev_rt_now when scheduling periodics |
|
|
364 | * to ensure progress, time-wise, even when rounding |
|
|
365 | * errors are against us. |
|
|
366 | * This value is good at least till the year 4000. |
474 | * This value is good at least till the year 4000. |
367 | * Better solutions welcome. |
|
|
368 | */ |
475 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
476 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
477 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
370 | |
478 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
479 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
480 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
374 | |
481 | |
|
|
482 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
483 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
484 | |
|
|
485 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
486 | /* ECB.H BEGIN */ |
|
|
487 | /* |
|
|
488 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
489 | * |
|
|
490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
491 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
492 | * All rights reserved. |
|
|
493 | * |
|
|
494 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
495 | * tion, are permitted provided that the following conditions are met: |
|
|
496 | * |
|
|
497 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
498 | * this list of conditions and the following disclaimer. |
|
|
499 | * |
|
|
500 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
501 | * notice, this list of conditions and the following disclaimer in the |
|
|
502 | * documentation and/or other materials provided with the distribution. |
|
|
503 | * |
|
|
504 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
505 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
506 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
507 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
508 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
509 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
510 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
511 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
512 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
513 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
514 | */ |
|
|
515 | |
|
|
516 | #ifndef ECB_H |
|
|
517 | #define ECB_H |
|
|
518 | |
|
|
519 | /* 16 bits major, 16 bits minor */ |
|
|
520 | #define ECB_VERSION 0x00010003 |
|
|
521 | |
|
|
522 | #ifdef _WIN32 |
|
|
523 | typedef signed char int8_t; |
|
|
524 | typedef unsigned char uint8_t; |
|
|
525 | typedef signed short int16_t; |
|
|
526 | typedef unsigned short uint16_t; |
|
|
527 | typedef signed int int32_t; |
|
|
528 | typedef unsigned int uint32_t; |
375 | #if __GNUC__ >= 4 |
529 | #if __GNUC__ |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
530 | typedef signed long long int64_t; |
377 | # define noinline __attribute__ ((noinline)) |
531 | typedef unsigned long long uint64_t; |
|
|
532 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
533 | typedef signed __int64 int64_t; |
|
|
534 | typedef unsigned __int64 uint64_t; |
|
|
535 | #endif |
|
|
536 | #ifdef _WIN64 |
|
|
537 | #define ECB_PTRSIZE 8 |
|
|
538 | typedef uint64_t uintptr_t; |
|
|
539 | typedef int64_t intptr_t; |
|
|
540 | #else |
|
|
541 | #define ECB_PTRSIZE 4 |
|
|
542 | typedef uint32_t uintptr_t; |
|
|
543 | typedef int32_t intptr_t; |
|
|
544 | #endif |
378 | #else |
545 | #else |
379 | # define expect(expr,value) (expr) |
546 | #include <inttypes.h> |
380 | # define noinline |
547 | #if UINTMAX_MAX > 0xffffffffU |
381 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
548 | #define ECB_PTRSIZE 8 |
382 | # define inline |
549 | #else |
|
|
550 | #define ECB_PTRSIZE 4 |
|
|
551 | #endif |
383 | # endif |
552 | #endif |
|
|
553 | |
|
|
554 | /* work around x32 idiocy by defining proper macros */ |
|
|
555 | #if __x86_64 || _M_AMD64 |
|
|
556 | #if _ILP32 |
|
|
557 | #define ECB_AMD64_X32 1 |
|
|
558 | #else |
|
|
559 | #define ECB_AMD64 1 |
384 | #endif |
560 | #endif |
|
|
561 | #endif |
385 | |
562 | |
|
|
563 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
564 | * what their idiot authors think are the "more important" extensions, |
|
|
565 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
566 | * or so. |
|
|
567 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
568 | * an issue with that they should have done it right in the first place. |
|
|
569 | */ |
|
|
570 | #ifndef ECB_GCC_VERSION |
|
|
571 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
572 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
573 | #else |
|
|
574 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
575 | #endif |
|
|
576 | #endif |
|
|
577 | |
|
|
578 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
579 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
580 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
581 | #define ECB_CPP (__cplusplus+0) |
|
|
582 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
583 | |
|
|
584 | #if ECB_CPP |
|
|
585 | #define ECB_EXTERN_C extern "C" |
|
|
586 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
587 | #define ECB_EXTERN_C_END } |
|
|
588 | #else |
|
|
589 | #define ECB_EXTERN_C extern |
|
|
590 | #define ECB_EXTERN_C_BEG |
|
|
591 | #define ECB_EXTERN_C_END |
|
|
592 | #endif |
|
|
593 | |
|
|
594 | /*****************************************************************************/ |
|
|
595 | |
|
|
596 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
597 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
598 | |
|
|
599 | #if ECB_NO_THREADS |
|
|
600 | #define ECB_NO_SMP 1 |
|
|
601 | #endif |
|
|
602 | |
|
|
603 | #if ECB_NO_SMP |
|
|
604 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
605 | #endif |
|
|
606 | |
|
|
607 | #ifndef ECB_MEMORY_FENCE |
|
|
608 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
609 | #if __i386 || __i386__ |
|
|
610 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
611 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
612 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
613 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
614 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
615 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
616 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
617 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
619 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
620 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
622 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
623 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
624 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
625 | #elif __sparc || __sparc__ |
|
|
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
629 | #elif defined __s390__ || defined __s390x__ |
|
|
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
631 | #elif defined __mips__ |
|
|
632 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
633 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
635 | #elif defined __alpha__ |
|
|
636 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
637 | #elif defined __hppa__ |
|
|
638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
639 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
640 | #elif defined __ia64__ |
|
|
641 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
642 | #elif defined __m68k__ |
|
|
643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
644 | #elif defined __m88k__ |
|
|
645 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
646 | #elif defined __sh__ |
|
|
647 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
648 | #endif |
|
|
649 | #endif |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #ifndef ECB_MEMORY_FENCE |
|
|
653 | #if ECB_GCC_VERSION(4,7) |
|
|
654 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
655 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
656 | |
|
|
657 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
658 | * without risking compile time errors with other compilers. We *could* |
|
|
659 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
660 | * around this shit time and again. |
|
|
661 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
662 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
663 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
664 | */ |
|
|
665 | |
|
|
666 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
667 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
668 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
669 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
670 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
671 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
672 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
673 | #elif defined _WIN32 |
|
|
674 | #include <WinNT.h> |
|
|
675 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
676 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
677 | #include <mbarrier.h> |
|
|
678 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
679 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
680 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
681 | #elif __xlC__ |
|
|
682 | #define ECB_MEMORY_FENCE __sync () |
|
|
683 | #endif |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | #ifndef ECB_MEMORY_FENCE |
|
|
687 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
688 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
689 | /* not just C11 atomics and atomic accesses */ |
|
|
690 | #include <stdatomic.h> |
|
|
691 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
692 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
693 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
694 | /* for most usages, or gcc and clang have a bug */ |
|
|
695 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
696 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
697 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
698 | #endif |
|
|
699 | #endif |
|
|
700 | |
|
|
701 | #ifndef ECB_MEMORY_FENCE |
|
|
702 | #if !ECB_AVOID_PTHREADS |
|
|
703 | /* |
|
|
704 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
705 | * or failure to find pthread.h, then you should implement |
|
|
706 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
707 | * OR provide pthread.h and link against the posix thread library |
|
|
708 | * of your system. |
|
|
709 | */ |
|
|
710 | #include <pthread.h> |
|
|
711 | #define ECB_NEEDS_PTHREADS 1 |
|
|
712 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
713 | |
|
|
714 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
715 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
716 | #endif |
|
|
717 | #endif |
|
|
718 | |
|
|
719 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
720 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
721 | #endif |
|
|
722 | |
|
|
723 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
724 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
725 | #endif |
|
|
726 | |
|
|
727 | /*****************************************************************************/ |
|
|
728 | |
|
|
729 | #if __cplusplus |
|
|
730 | #define ecb_inline static inline |
|
|
731 | #elif ECB_GCC_VERSION(2,5) |
|
|
732 | #define ecb_inline static __inline__ |
|
|
733 | #elif ECB_C99 |
|
|
734 | #define ecb_inline static inline |
|
|
735 | #else |
|
|
736 | #define ecb_inline static |
|
|
737 | #endif |
|
|
738 | |
|
|
739 | #if ECB_GCC_VERSION(3,3) |
|
|
740 | #define ecb_restrict __restrict__ |
|
|
741 | #elif ECB_C99 |
|
|
742 | #define ecb_restrict restrict |
|
|
743 | #else |
|
|
744 | #define ecb_restrict |
|
|
745 | #endif |
|
|
746 | |
|
|
747 | typedef int ecb_bool; |
|
|
748 | |
|
|
749 | #define ECB_CONCAT_(a, b) a ## b |
|
|
750 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
751 | #define ECB_STRINGIFY_(a) # a |
|
|
752 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
753 | |
|
|
754 | #define ecb_function_ ecb_inline |
|
|
755 | |
|
|
756 | #if ECB_GCC_VERSION(3,1) |
|
|
757 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
758 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
759 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
760 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
761 | #else |
|
|
762 | #define ecb_attribute(attrlist) |
|
|
763 | #define ecb_is_constant(expr) 0 |
|
|
764 | #define ecb_expect(expr,value) (expr) |
|
|
765 | #define ecb_prefetch(addr,rw,locality) |
|
|
766 | #endif |
|
|
767 | |
|
|
768 | /* no emulation for ecb_decltype */ |
|
|
769 | #if ECB_GCC_VERSION(4,5) |
|
|
770 | #define ecb_decltype(x) __decltype(x) |
|
|
771 | #elif ECB_GCC_VERSION(3,0) |
|
|
772 | #define ecb_decltype(x) __typeof(x) |
|
|
773 | #endif |
|
|
774 | |
|
|
775 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
776 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
777 | #define ecb_const ecb_attribute ((__const__)) |
|
|
778 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
779 | |
|
|
780 | #if ECB_C11 |
|
|
781 | #define ecb_noreturn _Noreturn |
|
|
782 | #else |
|
|
783 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
784 | #endif |
|
|
785 | |
|
|
786 | #if ECB_GCC_VERSION(4,3) |
|
|
787 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
788 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
789 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
790 | #else |
|
|
791 | #define ecb_artificial |
|
|
792 | #define ecb_hot |
|
|
793 | #define ecb_cold |
|
|
794 | #endif |
|
|
795 | |
|
|
796 | /* put around conditional expressions if you are very sure that the */ |
|
|
797 | /* expression is mostly true or mostly false. note that these return */ |
|
|
798 | /* booleans, not the expression. */ |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
799 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
387 | #define expect_true(expr) expect ((expr) != 0, 1) |
800 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
801 | /* for compatibility to the rest of the world */ |
|
|
802 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
803 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
804 | |
|
|
805 | /* count trailing zero bits and count # of one bits */ |
|
|
806 | #if ECB_GCC_VERSION(3,4) |
|
|
807 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
808 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
809 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
810 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
811 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
812 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
813 | /* no popcountll */ |
|
|
814 | #else |
|
|
815 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
816 | ecb_function_ int |
|
|
817 | ecb_ctz32 (uint32_t x) |
|
|
818 | { |
|
|
819 | int r = 0; |
|
|
820 | |
|
|
821 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
822 | |
|
|
823 | #if ECB_branchless_on_i386 |
|
|
824 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
825 | r += !!(x & 0xcccccccc) << 1; |
|
|
826 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
827 | r += !!(x & 0xff00ff00) << 3; |
|
|
828 | r += !!(x & 0xffff0000) << 4; |
|
|
829 | #else |
|
|
830 | if (x & 0xaaaaaaaa) r += 1; |
|
|
831 | if (x & 0xcccccccc) r += 2; |
|
|
832 | if (x & 0xf0f0f0f0) r += 4; |
|
|
833 | if (x & 0xff00ff00) r += 8; |
|
|
834 | if (x & 0xffff0000) r += 16; |
|
|
835 | #endif |
|
|
836 | |
|
|
837 | return r; |
|
|
838 | } |
|
|
839 | |
|
|
840 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
841 | ecb_function_ int |
|
|
842 | ecb_ctz64 (uint64_t x) |
|
|
843 | { |
|
|
844 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
845 | return ecb_ctz32 (x >> shift) + shift; |
|
|
846 | } |
|
|
847 | |
|
|
848 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
849 | ecb_function_ int |
|
|
850 | ecb_popcount32 (uint32_t x) |
|
|
851 | { |
|
|
852 | x -= (x >> 1) & 0x55555555; |
|
|
853 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
854 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
855 | x *= 0x01010101; |
|
|
856 | |
|
|
857 | return x >> 24; |
|
|
858 | } |
|
|
859 | |
|
|
860 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
861 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
862 | { |
|
|
863 | int r = 0; |
|
|
864 | |
|
|
865 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
866 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
867 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
868 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
869 | if (x >> 1) { r += 1; } |
|
|
870 | |
|
|
871 | return r; |
|
|
872 | } |
|
|
873 | |
|
|
874 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
875 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
876 | { |
|
|
877 | int r = 0; |
|
|
878 | |
|
|
879 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
880 | |
|
|
881 | return r + ecb_ld32 (x); |
|
|
882 | } |
|
|
883 | #endif |
|
|
884 | |
|
|
885 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
886 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
887 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
888 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
889 | |
|
|
890 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
891 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
892 | { |
|
|
893 | return ( (x * 0x0802U & 0x22110U) |
|
|
894 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
895 | } |
|
|
896 | |
|
|
897 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
898 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
899 | { |
|
|
900 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
901 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
902 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
903 | x = ( x >> 8 ) | ( x << 8); |
|
|
904 | |
|
|
905 | return x; |
|
|
906 | } |
|
|
907 | |
|
|
908 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
909 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
910 | { |
|
|
911 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
912 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
913 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
914 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
915 | x = ( x >> 16 ) | ( x << 16); |
|
|
916 | |
|
|
917 | return x; |
|
|
918 | } |
|
|
919 | |
|
|
920 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
921 | /* so for this version we are lazy */ |
|
|
922 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
923 | ecb_function_ int |
|
|
924 | ecb_popcount64 (uint64_t x) |
|
|
925 | { |
|
|
926 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
927 | } |
|
|
928 | |
|
|
929 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
930 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
931 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
932 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
933 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
934 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
935 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
936 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
937 | |
|
|
938 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
939 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
940 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
941 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
942 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
943 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
944 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
945 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
946 | |
|
|
947 | #if ECB_GCC_VERSION(4,3) |
|
|
948 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
949 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
950 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
951 | #else |
|
|
952 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
953 | ecb_function_ uint16_t |
|
|
954 | ecb_bswap16 (uint16_t x) |
|
|
955 | { |
|
|
956 | return ecb_rotl16 (x, 8); |
|
|
957 | } |
|
|
958 | |
|
|
959 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
960 | ecb_function_ uint32_t |
|
|
961 | ecb_bswap32 (uint32_t x) |
|
|
962 | { |
|
|
963 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
964 | } |
|
|
965 | |
|
|
966 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
967 | ecb_function_ uint64_t |
|
|
968 | ecb_bswap64 (uint64_t x) |
|
|
969 | { |
|
|
970 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
971 | } |
|
|
972 | #endif |
|
|
973 | |
|
|
974 | #if ECB_GCC_VERSION(4,5) |
|
|
975 | #define ecb_unreachable() __builtin_unreachable () |
|
|
976 | #else |
|
|
977 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
978 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
979 | ecb_inline void ecb_unreachable (void) { } |
|
|
980 | #endif |
|
|
981 | |
|
|
982 | /* try to tell the compiler that some condition is definitely true */ |
|
|
983 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
984 | |
|
|
985 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
986 | ecb_inline unsigned char |
|
|
987 | ecb_byteorder_helper (void) |
|
|
988 | { |
|
|
989 | /* the union code still generates code under pressure in gcc, */ |
|
|
990 | /* but less than using pointers, and always seems to */ |
|
|
991 | /* successfully return a constant. */ |
|
|
992 | /* the reason why we have this horrible preprocessor mess */ |
|
|
993 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
994 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
995 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
996 | return 0x44; |
|
|
997 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
998 | return 0x44; |
|
|
999 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1000 | return 0x11; |
|
|
1001 | #else |
|
|
1002 | union |
|
|
1003 | { |
|
|
1004 | uint32_t i; |
|
|
1005 | uint8_t c; |
|
|
1006 | } u = { 0x11223344 }; |
|
|
1007 | return u.c; |
|
|
1008 | #endif |
|
|
1009 | } |
|
|
1010 | |
|
|
1011 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1012 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1013 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1014 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1015 | |
|
|
1016 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1017 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1018 | #else |
|
|
1019 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | #if __cplusplus |
|
|
1023 | template<typename T> |
|
|
1024 | static inline T ecb_div_rd (T val, T div) |
|
|
1025 | { |
|
|
1026 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1027 | } |
|
|
1028 | template<typename T> |
|
|
1029 | static inline T ecb_div_ru (T val, T div) |
|
|
1030 | { |
|
|
1031 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1032 | } |
|
|
1033 | #else |
|
|
1034 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1035 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1036 | #endif |
|
|
1037 | |
|
|
1038 | #if ecb_cplusplus_does_not_suck |
|
|
1039 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1040 | template<typename T, int N> |
|
|
1041 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1042 | { |
|
|
1043 | return N; |
|
|
1044 | } |
|
|
1045 | #else |
|
|
1046 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1047 | #endif |
|
|
1048 | |
|
|
1049 | /*******************************************************************************/ |
|
|
1050 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1051 | |
|
|
1052 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1053 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1054 | #if 0 \ |
|
|
1055 | || __i386 || __i386__ \ |
|
|
1056 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1057 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1058 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1059 | || defined __s390__ || defined __s390x__ \ |
|
|
1060 | || defined __mips__ \ |
|
|
1061 | || defined __alpha__ \ |
|
|
1062 | || defined __hppa__ \ |
|
|
1063 | || defined __ia64__ \ |
|
|
1064 | || defined __m68k__ \ |
|
|
1065 | || defined __m88k__ \ |
|
|
1066 | || defined __sh__ \ |
|
|
1067 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1068 | #define ECB_STDFP 1 |
|
|
1069 | #include <string.h> /* for memcpy */ |
|
|
1070 | #else |
|
|
1071 | #define ECB_STDFP 0 |
|
|
1072 | #endif |
|
|
1073 | |
|
|
1074 | #ifndef ECB_NO_LIBM |
|
|
1075 | |
|
|
1076 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1077 | |
|
|
1078 | #ifdef NEN |
|
|
1079 | #define ECB_NAN NAN |
|
|
1080 | #else |
|
|
1081 | #define ECB_NAN INFINITY |
|
|
1082 | #endif |
|
|
1083 | |
|
|
1084 | /* converts an ieee half/binary16 to a float */ |
|
|
1085 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1086 | ecb_function_ float |
|
|
1087 | ecb_binary16_to_float (uint16_t x) |
|
|
1088 | { |
|
|
1089 | int e = (x >> 10) & 0x1f; |
|
|
1090 | int m = x & 0x3ff; |
|
|
1091 | float r; |
|
|
1092 | |
|
|
1093 | if (!e ) r = ldexpf (m , -24); |
|
|
1094 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1095 | else if (m ) r = ECB_NAN; |
|
|
1096 | else r = INFINITY; |
|
|
1097 | |
|
|
1098 | return x & 0x8000 ? -r : r; |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | /* convert a float to ieee single/binary32 */ |
|
|
1102 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1103 | ecb_function_ uint32_t |
|
|
1104 | ecb_float_to_binary32 (float x) |
|
|
1105 | { |
|
|
1106 | uint32_t r; |
|
|
1107 | |
|
|
1108 | #if ECB_STDFP |
|
|
1109 | memcpy (&r, &x, 4); |
|
|
1110 | #else |
|
|
1111 | /* slow emulation, works for anything but -0 */ |
|
|
1112 | uint32_t m; |
|
|
1113 | int e; |
|
|
1114 | |
|
|
1115 | if (x == 0e0f ) return 0x00000000U; |
|
|
1116 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1117 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1118 | if (x != x ) return 0x7fbfffffU; |
|
|
1119 | |
|
|
1120 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1121 | |
|
|
1122 | r = m & 0x80000000U; |
|
|
1123 | |
|
|
1124 | if (r) |
|
|
1125 | m = -m; |
|
|
1126 | |
|
|
1127 | if (e <= -126) |
|
|
1128 | { |
|
|
1129 | m &= 0xffffffU; |
|
|
1130 | m >>= (-125 - e); |
|
|
1131 | e = -126; |
|
|
1132 | } |
|
|
1133 | |
|
|
1134 | r |= (e + 126) << 23; |
|
|
1135 | r |= m & 0x7fffffU; |
|
|
1136 | #endif |
|
|
1137 | |
|
|
1138 | return r; |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | /* converts an ieee single/binary32 to a float */ |
|
|
1142 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1143 | ecb_function_ float |
|
|
1144 | ecb_binary32_to_float (uint32_t x) |
|
|
1145 | { |
|
|
1146 | float r; |
|
|
1147 | |
|
|
1148 | #if ECB_STDFP |
|
|
1149 | memcpy (&r, &x, 4); |
|
|
1150 | #else |
|
|
1151 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1152 | int neg = x >> 31; |
|
|
1153 | int e = (x >> 23) & 0xffU; |
|
|
1154 | |
|
|
1155 | x &= 0x7fffffU; |
|
|
1156 | |
|
|
1157 | if (e) |
|
|
1158 | x |= 0x800000U; |
|
|
1159 | else |
|
|
1160 | e = 1; |
|
|
1161 | |
|
|
1162 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1163 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1164 | |
|
|
1165 | r = neg ? -r : r; |
|
|
1166 | #endif |
|
|
1167 | |
|
|
1168 | return r; |
|
|
1169 | } |
|
|
1170 | |
|
|
1171 | /* convert a double to ieee double/binary64 */ |
|
|
1172 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1173 | ecb_function_ uint64_t |
|
|
1174 | ecb_double_to_binary64 (double x) |
|
|
1175 | { |
|
|
1176 | uint64_t r; |
|
|
1177 | |
|
|
1178 | #if ECB_STDFP |
|
|
1179 | memcpy (&r, &x, 8); |
|
|
1180 | #else |
|
|
1181 | /* slow emulation, works for anything but -0 */ |
|
|
1182 | uint64_t m; |
|
|
1183 | int e; |
|
|
1184 | |
|
|
1185 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1186 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1187 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1188 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1189 | |
|
|
1190 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1191 | |
|
|
1192 | r = m & 0x8000000000000000;; |
|
|
1193 | |
|
|
1194 | if (r) |
|
|
1195 | m = -m; |
|
|
1196 | |
|
|
1197 | if (e <= -1022) |
|
|
1198 | { |
|
|
1199 | m &= 0x1fffffffffffffU; |
|
|
1200 | m >>= (-1021 - e); |
|
|
1201 | e = -1022; |
|
|
1202 | } |
|
|
1203 | |
|
|
1204 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1205 | r |= m & 0xfffffffffffffU; |
|
|
1206 | #endif |
|
|
1207 | |
|
|
1208 | return r; |
|
|
1209 | } |
|
|
1210 | |
|
|
1211 | /* converts an ieee double/binary64 to a double */ |
|
|
1212 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1213 | ecb_function_ double |
|
|
1214 | ecb_binary64_to_double (uint64_t x) |
|
|
1215 | { |
|
|
1216 | double r; |
|
|
1217 | |
|
|
1218 | #if ECB_STDFP |
|
|
1219 | memcpy (&r, &x, 8); |
|
|
1220 | #else |
|
|
1221 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1222 | int neg = x >> 63; |
|
|
1223 | int e = (x >> 52) & 0x7ffU; |
|
|
1224 | |
|
|
1225 | x &= 0xfffffffffffffU; |
|
|
1226 | |
|
|
1227 | if (e) |
|
|
1228 | x |= 0x10000000000000U; |
|
|
1229 | else |
|
|
1230 | e = 1; |
|
|
1231 | |
|
|
1232 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1233 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1234 | |
|
|
1235 | r = neg ? -r : r; |
|
|
1236 | #endif |
|
|
1237 | |
|
|
1238 | return r; |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | #endif |
|
|
1242 | |
|
|
1243 | #endif |
|
|
1244 | |
|
|
1245 | /* ECB.H END */ |
|
|
1246 | |
|
|
1247 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1248 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1249 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1250 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1251 | * libev, in which cases the memory fences become nops. |
|
|
1252 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1253 | * which will then provide the memory fences. |
|
|
1254 | */ |
|
|
1255 | # error "memory fences not defined for your architecture, please report" |
|
|
1256 | #endif |
|
|
1257 | |
|
|
1258 | #ifndef ECB_MEMORY_FENCE |
|
|
1259 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1260 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1261 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1262 | #endif |
|
|
1263 | |
|
|
1264 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1265 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1266 | #define noinline ecb_noinline |
|
|
1267 | |
388 | #define inline_size static inline |
1268 | #define inline_size ecb_inline |
389 | |
1269 | |
390 | #if EV_MINIMAL |
1270 | #if EV_FEATURE_CODE |
|
|
1271 | # define inline_speed ecb_inline |
|
|
1272 | #else |
391 | # define inline_speed static noinline |
1273 | # define inline_speed static noinline |
392 | #else |
|
|
393 | # define inline_speed static inline |
|
|
394 | #endif |
1274 | #endif |
395 | |
1275 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1276 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
397 | |
1277 | |
398 | #if EV_MINPRI == EV_MAXPRI |
1278 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
411 | #define ev_active(w) ((W)(w))->active |
1291 | #define ev_active(w) ((W)(w))->active |
412 | #define ev_at(w) ((WT)(w))->at |
1292 | #define ev_at(w) ((WT)(w))->at |
413 | |
1293 | |
414 | #if EV_USE_REALTIME |
1294 | #if EV_USE_REALTIME |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1295 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
416 | /* giving it a reasonably high chance of working on typical architetcures */ |
1296 | /* giving it a reasonably high chance of working on typical architectures */ |
417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1297 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
418 | #endif |
1298 | #endif |
419 | |
1299 | |
420 | #if EV_USE_MONOTONIC |
1300 | #if EV_USE_MONOTONIC |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1301 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
422 | #endif |
1302 | #endif |
423 | |
1303 | |
|
|
1304 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1305 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1306 | #endif |
|
|
1307 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1308 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1309 | #endif |
|
|
1310 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1311 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
1312 | #endif |
|
|
1313 | |
424 | #ifdef _WIN32 |
1314 | #ifdef _WIN32 |
425 | # include "ev_win32.c" |
1315 | # include "ev_win32.c" |
426 | #endif |
1316 | #endif |
427 | |
1317 | |
428 | /*****************************************************************************/ |
1318 | /*****************************************************************************/ |
429 | |
1319 | |
|
|
1320 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1321 | |
|
|
1322 | #if EV_USE_FLOOR |
|
|
1323 | # include <math.h> |
|
|
1324 | # define ev_floor(v) floor (v) |
|
|
1325 | #else |
|
|
1326 | |
|
|
1327 | #include <float.h> |
|
|
1328 | |
|
|
1329 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1330 | static ev_tstamp noinline |
|
|
1331 | ev_floor (ev_tstamp v) |
|
|
1332 | { |
|
|
1333 | /* the choice of shift factor is not terribly important */ |
|
|
1334 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1335 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1336 | #else |
|
|
1337 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1338 | #endif |
|
|
1339 | |
|
|
1340 | /* argument too large for an unsigned long? */ |
|
|
1341 | if (expect_false (v >= shift)) |
|
|
1342 | { |
|
|
1343 | ev_tstamp f; |
|
|
1344 | |
|
|
1345 | if (v == v - 1.) |
|
|
1346 | return v; /* very large number */ |
|
|
1347 | |
|
|
1348 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1349 | return f + ev_floor (v - f); |
|
|
1350 | } |
|
|
1351 | |
|
|
1352 | /* special treatment for negative args? */ |
|
|
1353 | if (expect_false (v < 0.)) |
|
|
1354 | { |
|
|
1355 | ev_tstamp f = -ev_floor (-v); |
|
|
1356 | |
|
|
1357 | return f - (f == v ? 0 : 1); |
|
|
1358 | } |
|
|
1359 | |
|
|
1360 | /* fits into an unsigned long */ |
|
|
1361 | return (unsigned long)v; |
|
|
1362 | } |
|
|
1363 | |
|
|
1364 | #endif |
|
|
1365 | |
|
|
1366 | /*****************************************************************************/ |
|
|
1367 | |
|
|
1368 | #ifdef __linux |
|
|
1369 | # include <sys/utsname.h> |
|
|
1370 | #endif |
|
|
1371 | |
|
|
1372 | static unsigned int noinline ecb_cold |
|
|
1373 | ev_linux_version (void) |
|
|
1374 | { |
|
|
1375 | #ifdef __linux |
|
|
1376 | unsigned int v = 0; |
|
|
1377 | struct utsname buf; |
|
|
1378 | int i; |
|
|
1379 | char *p = buf.release; |
|
|
1380 | |
|
|
1381 | if (uname (&buf)) |
|
|
1382 | return 0; |
|
|
1383 | |
|
|
1384 | for (i = 3+1; --i; ) |
|
|
1385 | { |
|
|
1386 | unsigned int c = 0; |
|
|
1387 | |
|
|
1388 | for (;;) |
|
|
1389 | { |
|
|
1390 | if (*p >= '0' && *p <= '9') |
|
|
1391 | c = c * 10 + *p++ - '0'; |
|
|
1392 | else |
|
|
1393 | { |
|
|
1394 | p += *p == '.'; |
|
|
1395 | break; |
|
|
1396 | } |
|
|
1397 | } |
|
|
1398 | |
|
|
1399 | v = (v << 8) | c; |
|
|
1400 | } |
|
|
1401 | |
|
|
1402 | return v; |
|
|
1403 | #else |
|
|
1404 | return 0; |
|
|
1405 | #endif |
|
|
1406 | } |
|
|
1407 | |
|
|
1408 | /*****************************************************************************/ |
|
|
1409 | |
|
|
1410 | #if EV_AVOID_STDIO |
|
|
1411 | static void noinline ecb_cold |
|
|
1412 | ev_printerr (const char *msg) |
|
|
1413 | { |
|
|
1414 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1415 | } |
|
|
1416 | #endif |
|
|
1417 | |
430 | static void (*syserr_cb)(const char *msg); |
1418 | static void (*syserr_cb)(const char *msg) EV_THROW; |
431 | |
1419 | |
432 | void |
1420 | void ecb_cold |
433 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1421 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
434 | { |
1422 | { |
435 | syserr_cb = cb; |
1423 | syserr_cb = cb; |
436 | } |
1424 | } |
437 | |
1425 | |
438 | static void noinline |
1426 | static void noinline ecb_cold |
439 | ev_syserr (const char *msg) |
1427 | ev_syserr (const char *msg) |
440 | { |
1428 | { |
441 | if (!msg) |
1429 | if (!msg) |
442 | msg = "(libev) system error"; |
1430 | msg = "(libev) system error"; |
443 | |
1431 | |
444 | if (syserr_cb) |
1432 | if (syserr_cb) |
445 | syserr_cb (msg); |
1433 | syserr_cb (msg); |
446 | else |
1434 | else |
447 | { |
1435 | { |
|
|
1436 | #if EV_AVOID_STDIO |
|
|
1437 | ev_printerr (msg); |
|
|
1438 | ev_printerr (": "); |
|
|
1439 | ev_printerr (strerror (errno)); |
|
|
1440 | ev_printerr ("\n"); |
|
|
1441 | #else |
448 | perror (msg); |
1442 | perror (msg); |
|
|
1443 | #endif |
449 | abort (); |
1444 | abort (); |
450 | } |
1445 | } |
451 | } |
1446 | } |
452 | |
1447 | |
453 | static void * |
1448 | static void * |
454 | ev_realloc_emul (void *ptr, long size) |
1449 | ev_realloc_emul (void *ptr, long size) EV_THROW |
455 | { |
1450 | { |
456 | /* some systems, notably openbsd and darwin, fail to properly |
1451 | /* some systems, notably openbsd and darwin, fail to properly |
457 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1452 | * implement realloc (x, 0) (as required by both ansi c-89 and |
458 | * the single unix specification, so work around them here. |
1453 | * the single unix specification, so work around them here. |
|
|
1454 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1455 | * despite documenting it otherwise. |
459 | */ |
1456 | */ |
460 | |
1457 | |
461 | if (size) |
1458 | if (size) |
462 | return realloc (ptr, size); |
1459 | return realloc (ptr, size); |
463 | |
1460 | |
464 | free (ptr); |
1461 | free (ptr); |
465 | return 0; |
1462 | return 0; |
466 | } |
1463 | } |
467 | |
1464 | |
468 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1465 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
469 | |
1466 | |
470 | void |
1467 | void ecb_cold |
471 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1468 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
472 | { |
1469 | { |
473 | alloc = cb; |
1470 | alloc = cb; |
474 | } |
1471 | } |
475 | |
1472 | |
476 | inline_speed void * |
1473 | inline_speed void * |
… | |
… | |
478 | { |
1475 | { |
479 | ptr = alloc (ptr, size); |
1476 | ptr = alloc (ptr, size); |
480 | |
1477 | |
481 | if (!ptr && size) |
1478 | if (!ptr && size) |
482 | { |
1479 | { |
|
|
1480 | #if EV_AVOID_STDIO |
|
|
1481 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1482 | #else |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1483 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1484 | #endif |
484 | abort (); |
1485 | abort (); |
485 | } |
1486 | } |
486 | |
1487 | |
487 | return ptr; |
1488 | return ptr; |
488 | } |
1489 | } |
… | |
… | |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
1491 | #define ev_malloc(size) ev_realloc (0, (size)) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1492 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
492 | |
1493 | |
493 | /*****************************************************************************/ |
1494 | /*****************************************************************************/ |
494 | |
1495 | |
|
|
1496 | /* set in reify when reification needed */ |
|
|
1497 | #define EV_ANFD_REIFY 1 |
|
|
1498 | |
495 | /* file descriptor info structure */ |
1499 | /* file descriptor info structure */ |
496 | typedef struct |
1500 | typedef struct |
497 | { |
1501 | { |
498 | WL head; |
1502 | WL head; |
499 | unsigned char events; /* the events watched for */ |
1503 | unsigned char events; /* the events watched for */ |
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
1504 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1505 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
502 | unsigned char unused; |
1506 | unsigned char unused; |
503 | #if EV_USE_EPOLL |
1507 | #if EV_USE_EPOLL |
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1508 | unsigned int egen; /* generation counter to counter epoll bugs */ |
505 | #endif |
1509 | #endif |
506 | #if EV_SELECT_IS_WINSOCKET |
1510 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
507 | SOCKET handle; |
1511 | SOCKET handle; |
|
|
1512 | #endif |
|
|
1513 | #if EV_USE_IOCP |
|
|
1514 | OVERLAPPED or, ow; |
508 | #endif |
1515 | #endif |
509 | } ANFD; |
1516 | } ANFD; |
510 | |
1517 | |
511 | /* stores the pending event set for a given watcher */ |
1518 | /* stores the pending event set for a given watcher */ |
512 | typedef struct |
1519 | typedef struct |
… | |
… | |
554 | #undef VAR |
1561 | #undef VAR |
555 | }; |
1562 | }; |
556 | #include "ev_wrap.h" |
1563 | #include "ev_wrap.h" |
557 | |
1564 | |
558 | static struct ev_loop default_loop_struct; |
1565 | static struct ev_loop default_loop_struct; |
559 | struct ev_loop *ev_default_loop_ptr; |
1566 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
560 | |
1567 | |
561 | #else |
1568 | #else |
562 | |
1569 | |
563 | ev_tstamp ev_rt_now; |
1570 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
564 | #define VAR(name,decl) static decl; |
1571 | #define VAR(name,decl) static decl; |
565 | #include "ev_vars.h" |
1572 | #include "ev_vars.h" |
566 | #undef VAR |
1573 | #undef VAR |
567 | |
1574 | |
568 | static int ev_default_loop_ptr; |
1575 | static int ev_default_loop_ptr; |
569 | |
1576 | |
570 | #endif |
1577 | #endif |
571 | |
1578 | |
|
|
1579 | #if EV_FEATURE_API |
|
|
1580 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1581 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1582 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1583 | #else |
|
|
1584 | # define EV_RELEASE_CB (void)0 |
|
|
1585 | # define EV_ACQUIRE_CB (void)0 |
|
|
1586 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1587 | #endif |
|
|
1588 | |
|
|
1589 | #define EVBREAK_RECURSE 0x80 |
|
|
1590 | |
572 | /*****************************************************************************/ |
1591 | /*****************************************************************************/ |
573 | |
1592 | |
574 | #ifndef EV_HAVE_EV_TIME |
1593 | #ifndef EV_HAVE_EV_TIME |
575 | ev_tstamp |
1594 | ev_tstamp |
576 | ev_time (void) |
1595 | ev_time (void) EV_THROW |
577 | { |
1596 | { |
578 | #if EV_USE_REALTIME |
1597 | #if EV_USE_REALTIME |
579 | if (expect_true (have_realtime)) |
1598 | if (expect_true (have_realtime)) |
580 | { |
1599 | { |
581 | struct timespec ts; |
1600 | struct timespec ts; |
… | |
… | |
605 | return ev_time (); |
1624 | return ev_time (); |
606 | } |
1625 | } |
607 | |
1626 | |
608 | #if EV_MULTIPLICITY |
1627 | #if EV_MULTIPLICITY |
609 | ev_tstamp |
1628 | ev_tstamp |
610 | ev_now (EV_P) |
1629 | ev_now (EV_P) EV_THROW |
611 | { |
1630 | { |
612 | return ev_rt_now; |
1631 | return ev_rt_now; |
613 | } |
1632 | } |
614 | #endif |
1633 | #endif |
615 | |
1634 | |
616 | void |
1635 | void |
617 | ev_sleep (ev_tstamp delay) |
1636 | ev_sleep (ev_tstamp delay) EV_THROW |
618 | { |
1637 | { |
619 | if (delay > 0.) |
1638 | if (delay > 0.) |
620 | { |
1639 | { |
621 | #if EV_USE_NANOSLEEP |
1640 | #if EV_USE_NANOSLEEP |
622 | struct timespec ts; |
1641 | struct timespec ts; |
623 | |
1642 | |
624 | ts.tv_sec = (time_t)delay; |
1643 | EV_TS_SET (ts, delay); |
625 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
626 | |
|
|
627 | nanosleep (&ts, 0); |
1644 | nanosleep (&ts, 0); |
628 | #elif defined(_WIN32) |
1645 | #elif defined _WIN32 |
629 | Sleep ((unsigned long)(delay * 1e3)); |
1646 | Sleep ((unsigned long)(delay * 1e3)); |
630 | #else |
1647 | #else |
631 | struct timeval tv; |
1648 | struct timeval tv; |
632 | |
1649 | |
633 | tv.tv_sec = (time_t)delay; |
|
|
634 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
635 | |
|
|
636 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1650 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
637 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
1651 | /* something not guaranteed by newer posix versions, but guaranteed */ |
638 | /* by older ones */ |
1652 | /* by older ones */ |
|
|
1653 | EV_TV_SET (tv, delay); |
639 | select (0, 0, 0, 0, &tv); |
1654 | select (0, 0, 0, 0, &tv); |
640 | #endif |
1655 | #endif |
641 | } |
1656 | } |
642 | } |
1657 | } |
643 | |
1658 | |
644 | /*****************************************************************************/ |
1659 | /*****************************************************************************/ |
645 | |
1660 | |
646 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1661 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
647 | |
1662 | |
648 | /* find a suitable new size for the given array, */ |
1663 | /* find a suitable new size for the given array, */ |
649 | /* hopefully by rounding to a ncie-to-malloc size */ |
1664 | /* hopefully by rounding to a nice-to-malloc size */ |
650 | inline_size int |
1665 | inline_size int |
651 | array_nextsize (int elem, int cur, int cnt) |
1666 | array_nextsize (int elem, int cur, int cnt) |
652 | { |
1667 | { |
653 | int ncur = cur + 1; |
1668 | int ncur = cur + 1; |
654 | |
1669 | |
655 | do |
1670 | do |
656 | ncur <<= 1; |
1671 | ncur <<= 1; |
657 | while (cnt > ncur); |
1672 | while (cnt > ncur); |
658 | |
1673 | |
659 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1674 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
660 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1675 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
661 | { |
1676 | { |
662 | ncur *= elem; |
1677 | ncur *= elem; |
663 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1678 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
664 | ncur = ncur - sizeof (void *) * 4; |
1679 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
666 | } |
1681 | } |
667 | |
1682 | |
668 | return ncur; |
1683 | return ncur; |
669 | } |
1684 | } |
670 | |
1685 | |
671 | static noinline void * |
1686 | static void * noinline ecb_cold |
672 | array_realloc (int elem, void *base, int *cur, int cnt) |
1687 | array_realloc (int elem, void *base, int *cur, int cnt) |
673 | { |
1688 | { |
674 | *cur = array_nextsize (elem, *cur, cnt); |
1689 | *cur = array_nextsize (elem, *cur, cnt); |
675 | return ev_realloc (base, elem * *cur); |
1690 | return ev_realloc (base, elem * *cur); |
676 | } |
1691 | } |
… | |
… | |
679 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1694 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
680 | |
1695 | |
681 | #define array_needsize(type,base,cur,cnt,init) \ |
1696 | #define array_needsize(type,base,cur,cnt,init) \ |
682 | if (expect_false ((cnt) > (cur))) \ |
1697 | if (expect_false ((cnt) > (cur))) \ |
683 | { \ |
1698 | { \ |
684 | int ocur_ = (cur); \ |
1699 | int ecb_unused ocur_ = (cur); \ |
685 | (base) = (type *)array_realloc \ |
1700 | (base) = (type *)array_realloc \ |
686 | (sizeof (type), (base), &(cur), (cnt)); \ |
1701 | (sizeof (type), (base), &(cur), (cnt)); \ |
687 | init ((base) + (ocur_), (cur) - ocur_); \ |
1702 | init ((base) + (ocur_), (cur) - ocur_); \ |
688 | } |
1703 | } |
689 | |
1704 | |
… | |
… | |
707 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1722 | pendingcb (EV_P_ ev_prepare *w, int revents) |
708 | { |
1723 | { |
709 | } |
1724 | } |
710 | |
1725 | |
711 | void noinline |
1726 | void noinline |
712 | ev_feed_event (EV_P_ void *w, int revents) |
1727 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
713 | { |
1728 | { |
714 | W w_ = (W)w; |
1729 | W w_ = (W)w; |
715 | int pri = ABSPRI (w_); |
1730 | int pri = ABSPRI (w_); |
716 | |
1731 | |
717 | if (expect_false (w_->pending)) |
1732 | if (expect_false (w_->pending)) |
… | |
… | |
721 | w_->pending = ++pendingcnt [pri]; |
1736 | w_->pending = ++pendingcnt [pri]; |
722 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1737 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
723 | pendings [pri][w_->pending - 1].w = w_; |
1738 | pendings [pri][w_->pending - 1].w = w_; |
724 | pendings [pri][w_->pending - 1].events = revents; |
1739 | pendings [pri][w_->pending - 1].events = revents; |
725 | } |
1740 | } |
|
|
1741 | |
|
|
1742 | pendingpri = NUMPRI - 1; |
726 | } |
1743 | } |
727 | |
1744 | |
728 | inline_speed void |
1745 | inline_speed void |
729 | feed_reverse (EV_P_ W w) |
1746 | feed_reverse (EV_P_ W w) |
730 | { |
1747 | { |
… | |
… | |
750 | } |
1767 | } |
751 | |
1768 | |
752 | /*****************************************************************************/ |
1769 | /*****************************************************************************/ |
753 | |
1770 | |
754 | inline_speed void |
1771 | inline_speed void |
755 | fd_event (EV_P_ int fd, int revents) |
1772 | fd_event_nocheck (EV_P_ int fd, int revents) |
756 | { |
1773 | { |
757 | ANFD *anfd = anfds + fd; |
1774 | ANFD *anfd = anfds + fd; |
758 | ev_io *w; |
1775 | ev_io *w; |
759 | |
1776 | |
760 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1777 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
764 | if (ev) |
1781 | if (ev) |
765 | ev_feed_event (EV_A_ (W)w, ev); |
1782 | ev_feed_event (EV_A_ (W)w, ev); |
766 | } |
1783 | } |
767 | } |
1784 | } |
768 | |
1785 | |
|
|
1786 | /* do not submit kernel events for fds that have reify set */ |
|
|
1787 | /* because that means they changed while we were polling for new events */ |
|
|
1788 | inline_speed void |
|
|
1789 | fd_event (EV_P_ int fd, int revents) |
|
|
1790 | { |
|
|
1791 | ANFD *anfd = anfds + fd; |
|
|
1792 | |
|
|
1793 | if (expect_true (!anfd->reify)) |
|
|
1794 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1795 | } |
|
|
1796 | |
769 | void |
1797 | void |
770 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1798 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
771 | { |
1799 | { |
772 | if (fd >= 0 && fd < anfdmax) |
1800 | if (fd >= 0 && fd < anfdmax) |
773 | fd_event (EV_A_ fd, revents); |
1801 | fd_event_nocheck (EV_A_ fd, revents); |
774 | } |
1802 | } |
775 | |
1803 | |
776 | /* make sure the external fd watch events are in-sync */ |
1804 | /* make sure the external fd watch events are in-sync */ |
777 | /* with the kernel/libev internal state */ |
1805 | /* with the kernel/libev internal state */ |
778 | inline_size void |
1806 | inline_size void |
779 | fd_reify (EV_P) |
1807 | fd_reify (EV_P) |
780 | { |
1808 | { |
781 | int i; |
1809 | int i; |
782 | |
1810 | |
|
|
1811 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1812 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1813 | { |
|
|
1814 | int fd = fdchanges [i]; |
|
|
1815 | ANFD *anfd = anfds + fd; |
|
|
1816 | |
|
|
1817 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1818 | { |
|
|
1819 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1820 | |
|
|
1821 | if (handle != anfd->handle) |
|
|
1822 | { |
|
|
1823 | unsigned long arg; |
|
|
1824 | |
|
|
1825 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1826 | |
|
|
1827 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1828 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1829 | anfd->events = 0; |
|
|
1830 | anfd->handle = handle; |
|
|
1831 | } |
|
|
1832 | } |
|
|
1833 | } |
|
|
1834 | #endif |
|
|
1835 | |
783 | for (i = 0; i < fdchangecnt; ++i) |
1836 | for (i = 0; i < fdchangecnt; ++i) |
784 | { |
1837 | { |
785 | int fd = fdchanges [i]; |
1838 | int fd = fdchanges [i]; |
786 | ANFD *anfd = anfds + fd; |
1839 | ANFD *anfd = anfds + fd; |
787 | ev_io *w; |
1840 | ev_io *w; |
788 | |
1841 | |
789 | unsigned char events = 0; |
1842 | unsigned char o_events = anfd->events; |
|
|
1843 | unsigned char o_reify = anfd->reify; |
790 | |
1844 | |
791 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1845 | anfd->reify = 0; |
792 | events |= (unsigned char)w->events; |
|
|
793 | |
1846 | |
794 | #if EV_SELECT_IS_WINSOCKET |
1847 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
795 | if (events) |
|
|
796 | { |
1848 | { |
797 | unsigned long arg; |
1849 | anfd->events = 0; |
798 | #ifdef EV_FD_TO_WIN32_HANDLE |
1850 | |
799 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1851 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
800 | #else |
1852 | anfd->events |= (unsigned char)w->events; |
801 | anfd->handle = _get_osfhandle (fd); |
1853 | |
802 | #endif |
1854 | if (o_events != anfd->events) |
803 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1855 | o_reify = EV__IOFDSET; /* actually |= */ |
804 | } |
1856 | } |
805 | #endif |
|
|
806 | |
1857 | |
807 | { |
1858 | if (o_reify & EV__IOFDSET) |
808 | unsigned char o_events = anfd->events; |
|
|
809 | unsigned char o_reify = anfd->reify; |
|
|
810 | |
|
|
811 | anfd->reify = 0; |
|
|
812 | anfd->events = events; |
|
|
813 | |
|
|
814 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
815 | backend_modify (EV_A_ fd, o_events, events); |
1859 | backend_modify (EV_A_ fd, o_events, anfd->events); |
816 | } |
|
|
817 | } |
1860 | } |
818 | |
1861 | |
819 | fdchangecnt = 0; |
1862 | fdchangecnt = 0; |
820 | } |
1863 | } |
821 | |
1864 | |
… | |
… | |
833 | fdchanges [fdchangecnt - 1] = fd; |
1876 | fdchanges [fdchangecnt - 1] = fd; |
834 | } |
1877 | } |
835 | } |
1878 | } |
836 | |
1879 | |
837 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1880 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
838 | inline_speed void |
1881 | inline_speed void ecb_cold |
839 | fd_kill (EV_P_ int fd) |
1882 | fd_kill (EV_P_ int fd) |
840 | { |
1883 | { |
841 | ev_io *w; |
1884 | ev_io *w; |
842 | |
1885 | |
843 | while ((w = (ev_io *)anfds [fd].head)) |
1886 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
845 | ev_io_stop (EV_A_ w); |
1888 | ev_io_stop (EV_A_ w); |
846 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1889 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
847 | } |
1890 | } |
848 | } |
1891 | } |
849 | |
1892 | |
850 | /* check whether the given fd is atcually valid, for error recovery */ |
1893 | /* check whether the given fd is actually valid, for error recovery */ |
851 | inline_size int |
1894 | inline_size int ecb_cold |
852 | fd_valid (int fd) |
1895 | fd_valid (int fd) |
853 | { |
1896 | { |
854 | #ifdef _WIN32 |
1897 | #ifdef _WIN32 |
855 | return _get_osfhandle (fd) != -1; |
1898 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
856 | #else |
1899 | #else |
857 | return fcntl (fd, F_GETFD) != -1; |
1900 | return fcntl (fd, F_GETFD) != -1; |
858 | #endif |
1901 | #endif |
859 | } |
1902 | } |
860 | |
1903 | |
861 | /* called on EBADF to verify fds */ |
1904 | /* called on EBADF to verify fds */ |
862 | static void noinline |
1905 | static void noinline ecb_cold |
863 | fd_ebadf (EV_P) |
1906 | fd_ebadf (EV_P) |
864 | { |
1907 | { |
865 | int fd; |
1908 | int fd; |
866 | |
1909 | |
867 | for (fd = 0; fd < anfdmax; ++fd) |
1910 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
869 | if (!fd_valid (fd) && errno == EBADF) |
1912 | if (!fd_valid (fd) && errno == EBADF) |
870 | fd_kill (EV_A_ fd); |
1913 | fd_kill (EV_A_ fd); |
871 | } |
1914 | } |
872 | |
1915 | |
873 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1916 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
874 | static void noinline |
1917 | static void noinline ecb_cold |
875 | fd_enomem (EV_P) |
1918 | fd_enomem (EV_P) |
876 | { |
1919 | { |
877 | int fd; |
1920 | int fd; |
878 | |
1921 | |
879 | for (fd = anfdmax; fd--; ) |
1922 | for (fd = anfdmax; fd--; ) |
880 | if (anfds [fd].events) |
1923 | if (anfds [fd].events) |
881 | { |
1924 | { |
882 | fd_kill (EV_A_ fd); |
1925 | fd_kill (EV_A_ fd); |
883 | return; |
1926 | break; |
884 | } |
1927 | } |
885 | } |
1928 | } |
886 | |
1929 | |
887 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1930 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
888 | static void noinline |
1931 | static void noinline |
… | |
… | |
893 | for (fd = 0; fd < anfdmax; ++fd) |
1936 | for (fd = 0; fd < anfdmax; ++fd) |
894 | if (anfds [fd].events) |
1937 | if (anfds [fd].events) |
895 | { |
1938 | { |
896 | anfds [fd].events = 0; |
1939 | anfds [fd].events = 0; |
897 | anfds [fd].emask = 0; |
1940 | anfds [fd].emask = 0; |
898 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1941 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
899 | } |
1942 | } |
900 | } |
1943 | } |
901 | |
1944 | |
|
|
1945 | /* used to prepare libev internal fd's */ |
|
|
1946 | /* this is not fork-safe */ |
|
|
1947 | inline_speed void |
|
|
1948 | fd_intern (int fd) |
|
|
1949 | { |
|
|
1950 | #ifdef _WIN32 |
|
|
1951 | unsigned long arg = 1; |
|
|
1952 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1953 | #else |
|
|
1954 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1955 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1956 | #endif |
|
|
1957 | } |
|
|
1958 | |
902 | /*****************************************************************************/ |
1959 | /*****************************************************************************/ |
903 | |
1960 | |
904 | /* |
1961 | /* |
905 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1962 | * the heap functions want a real array index. array index 0 is guaranteed to not |
906 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1963 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
907 | * the branching factor of the d-tree. |
1964 | * the branching factor of the d-tree. |
908 | */ |
1965 | */ |
909 | |
1966 | |
910 | /* |
1967 | /* |
… | |
… | |
978 | |
2035 | |
979 | for (;;) |
2036 | for (;;) |
980 | { |
2037 | { |
981 | int c = k << 1; |
2038 | int c = k << 1; |
982 | |
2039 | |
983 | if (c > N + HEAP0 - 1) |
2040 | if (c >= N + HEAP0) |
984 | break; |
2041 | break; |
985 | |
2042 | |
986 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
2043 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
987 | ? 1 : 0; |
2044 | ? 1 : 0; |
988 | |
2045 | |
… | |
… | |
1024 | |
2081 | |
1025 | /* move an element suitably so it is in a correct place */ |
2082 | /* move an element suitably so it is in a correct place */ |
1026 | inline_size void |
2083 | inline_size void |
1027 | adjustheap (ANHE *heap, int N, int k) |
2084 | adjustheap (ANHE *heap, int N, int k) |
1028 | { |
2085 | { |
1029 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
2086 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1030 | upheap (heap, k); |
2087 | upheap (heap, k); |
1031 | else |
2088 | else |
1032 | downheap (heap, N, k); |
2089 | downheap (heap, N, k); |
1033 | } |
2090 | } |
1034 | |
2091 | |
… | |
… | |
1047 | /*****************************************************************************/ |
2104 | /*****************************************************************************/ |
1048 | |
2105 | |
1049 | /* associate signal watchers to a signal signal */ |
2106 | /* associate signal watchers to a signal signal */ |
1050 | typedef struct |
2107 | typedef struct |
1051 | { |
2108 | { |
|
|
2109 | EV_ATOMIC_T pending; |
|
|
2110 | #if EV_MULTIPLICITY |
|
|
2111 | EV_P; |
|
|
2112 | #endif |
1052 | WL head; |
2113 | WL head; |
1053 | EV_ATOMIC_T gotsig; |
|
|
1054 | } ANSIG; |
2114 | } ANSIG; |
1055 | |
2115 | |
1056 | static ANSIG *signals; |
2116 | static ANSIG signals [EV_NSIG - 1]; |
1057 | static int signalmax; |
|
|
1058 | |
|
|
1059 | static EV_ATOMIC_T gotsig; |
|
|
1060 | |
2117 | |
1061 | /*****************************************************************************/ |
2118 | /*****************************************************************************/ |
1062 | |
2119 | |
1063 | /* used to prepare libev internal fd's */ |
2120 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1064 | /* this is not fork-safe */ |
2121 | |
|
|
2122 | static void noinline ecb_cold |
|
|
2123 | evpipe_init (EV_P) |
|
|
2124 | { |
|
|
2125 | if (!ev_is_active (&pipe_w)) |
|
|
2126 | { |
|
|
2127 | int fds [2]; |
|
|
2128 | |
|
|
2129 | # if EV_USE_EVENTFD |
|
|
2130 | fds [0] = -1; |
|
|
2131 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2132 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2133 | fds [1] = eventfd (0, 0); |
|
|
2134 | |
|
|
2135 | if (fds [1] < 0) |
|
|
2136 | # endif |
|
|
2137 | { |
|
|
2138 | while (pipe (fds)) |
|
|
2139 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2140 | |
|
|
2141 | fd_intern (fds [0]); |
|
|
2142 | } |
|
|
2143 | |
|
|
2144 | evpipe [0] = fds [0]; |
|
|
2145 | |
|
|
2146 | if (evpipe [1] < 0) |
|
|
2147 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2148 | else |
|
|
2149 | { |
|
|
2150 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2151 | /* so that evpipe_write can always rely on its value. */ |
|
|
2152 | /* this branch does not do anything sensible on windows, */ |
|
|
2153 | /* so must not be executed on windows */ |
|
|
2154 | |
|
|
2155 | dup2 (fds [1], evpipe [1]); |
|
|
2156 | close (fds [1]); |
|
|
2157 | } |
|
|
2158 | |
|
|
2159 | fd_intern (evpipe [1]); |
|
|
2160 | |
|
|
2161 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2162 | ev_io_start (EV_A_ &pipe_w); |
|
|
2163 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2164 | } |
|
|
2165 | } |
|
|
2166 | |
1065 | inline_speed void |
2167 | inline_speed void |
1066 | fd_intern (int fd) |
2168 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1067 | { |
2169 | { |
1068 | #ifdef _WIN32 |
2170 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1069 | unsigned long arg = 1; |
|
|
1070 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1071 | #else |
|
|
1072 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1073 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1074 | #endif |
|
|
1075 | } |
|
|
1076 | |
2171 | |
1077 | static void noinline |
2172 | if (expect_true (*flag)) |
1078 | evpipe_init (EV_P) |
2173 | return; |
1079 | { |
2174 | |
1080 | if (!ev_is_active (&pipe_w)) |
2175 | *flag = 1; |
|
|
2176 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2177 | |
|
|
2178 | pipe_write_skipped = 1; |
|
|
2179 | |
|
|
2180 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2181 | |
|
|
2182 | if (pipe_write_wanted) |
1081 | { |
2183 | { |
|
|
2184 | int old_errno; |
|
|
2185 | |
|
|
2186 | pipe_write_skipped = 0; |
|
|
2187 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2188 | |
|
|
2189 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2190 | |
1082 | #if EV_USE_EVENTFD |
2191 | #if EV_USE_EVENTFD |
1083 | if ((evfd = eventfd (0, 0)) >= 0) |
2192 | if (evpipe [0] < 0) |
1084 | { |
2193 | { |
1085 | evpipe [0] = -1; |
2194 | uint64_t counter = 1; |
1086 | fd_intern (evfd); |
2195 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1087 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1088 | } |
2196 | } |
1089 | else |
2197 | else |
1090 | #endif |
2198 | #endif |
1091 | { |
2199 | { |
1092 | while (pipe (evpipe)) |
2200 | #ifdef _WIN32 |
1093 | ev_syserr ("(libev) error creating signal/async pipe"); |
2201 | WSABUF buf; |
1094 | |
2202 | DWORD sent; |
1095 | fd_intern (evpipe [0]); |
2203 | buf.buf = &buf; |
1096 | fd_intern (evpipe [1]); |
2204 | buf.len = 1; |
1097 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2205 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2206 | #else |
|
|
2207 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2208 | #endif |
1098 | } |
2209 | } |
1099 | |
|
|
1100 | ev_io_start (EV_A_ &pipe_w); |
|
|
1101 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1102 | } |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | inline_size void |
|
|
1106 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1107 | { |
|
|
1108 | if (!*flag) |
|
|
1109 | { |
|
|
1110 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1111 | |
|
|
1112 | *flag = 1; |
|
|
1113 | |
|
|
1114 | #if EV_USE_EVENTFD |
|
|
1115 | if (evfd >= 0) |
|
|
1116 | { |
|
|
1117 | uint64_t counter = 1; |
|
|
1118 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1119 | } |
|
|
1120 | else |
|
|
1121 | #endif |
|
|
1122 | write (evpipe [1], &old_errno, 1); |
|
|
1123 | |
2210 | |
1124 | errno = old_errno; |
2211 | errno = old_errno; |
1125 | } |
2212 | } |
1126 | } |
2213 | } |
1127 | |
2214 | |
1128 | /* called whenever the libev signal pipe */ |
2215 | /* called whenever the libev signal pipe */ |
1129 | /* got some events (signal, async) */ |
2216 | /* got some events (signal, async) */ |
1130 | static void |
2217 | static void |
1131 | pipecb (EV_P_ ev_io *iow, int revents) |
2218 | pipecb (EV_P_ ev_io *iow, int revents) |
1132 | { |
2219 | { |
|
|
2220 | int i; |
|
|
2221 | |
|
|
2222 | if (revents & EV_READ) |
|
|
2223 | { |
1133 | #if EV_USE_EVENTFD |
2224 | #if EV_USE_EVENTFD |
1134 | if (evfd >= 0) |
2225 | if (evpipe [0] < 0) |
1135 | { |
2226 | { |
1136 | uint64_t counter; |
2227 | uint64_t counter; |
1137 | read (evfd, &counter, sizeof (uint64_t)); |
2228 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1138 | } |
2229 | } |
1139 | else |
2230 | else |
1140 | #endif |
2231 | #endif |
1141 | { |
2232 | { |
1142 | char dummy; |
2233 | char dummy[4]; |
|
|
2234 | #ifdef _WIN32 |
|
|
2235 | WSABUF buf; |
|
|
2236 | DWORD recvd; |
|
|
2237 | DWORD flags = 0; |
|
|
2238 | buf.buf = dummy; |
|
|
2239 | buf.len = sizeof (dummy); |
|
|
2240 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2241 | #else |
1143 | read (evpipe [0], &dummy, 1); |
2242 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2243 | #endif |
|
|
2244 | } |
|
|
2245 | } |
|
|
2246 | |
|
|
2247 | pipe_write_skipped = 0; |
|
|
2248 | |
|
|
2249 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2250 | |
|
|
2251 | #if EV_SIGNAL_ENABLE |
|
|
2252 | if (sig_pending) |
1144 | } |
2253 | { |
|
|
2254 | sig_pending = 0; |
1145 | |
2255 | |
1146 | if (gotsig && ev_is_default_loop (EV_A)) |
2256 | ECB_MEMORY_FENCE; |
1147 | { |
|
|
1148 | int signum; |
|
|
1149 | gotsig = 0; |
|
|
1150 | |
2257 | |
1151 | for (signum = signalmax; signum--; ) |
2258 | for (i = EV_NSIG - 1; i--; ) |
1152 | if (signals [signum].gotsig) |
2259 | if (expect_false (signals [i].pending)) |
1153 | ev_feed_signal_event (EV_A_ signum + 1); |
2260 | ev_feed_signal_event (EV_A_ i + 1); |
1154 | } |
2261 | } |
|
|
2262 | #endif |
1155 | |
2263 | |
1156 | #if EV_ASYNC_ENABLE |
2264 | #if EV_ASYNC_ENABLE |
1157 | if (gotasync) |
2265 | if (async_pending) |
1158 | { |
2266 | { |
1159 | int i; |
2267 | async_pending = 0; |
1160 | gotasync = 0; |
2268 | |
|
|
2269 | ECB_MEMORY_FENCE; |
1161 | |
2270 | |
1162 | for (i = asynccnt; i--; ) |
2271 | for (i = asynccnt; i--; ) |
1163 | if (asyncs [i]->sent) |
2272 | if (asyncs [i]->sent) |
1164 | { |
2273 | { |
1165 | asyncs [i]->sent = 0; |
2274 | asyncs [i]->sent = 0; |
|
|
2275 | ECB_MEMORY_FENCE_RELEASE; |
1166 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2276 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1167 | } |
2277 | } |
1168 | } |
2278 | } |
1169 | #endif |
2279 | #endif |
1170 | } |
2280 | } |
1171 | |
2281 | |
1172 | /*****************************************************************************/ |
2282 | /*****************************************************************************/ |
1173 | |
2283 | |
|
|
2284 | void |
|
|
2285 | ev_feed_signal (int signum) EV_THROW |
|
|
2286 | { |
|
|
2287 | #if EV_MULTIPLICITY |
|
|
2288 | EV_P; |
|
|
2289 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2290 | EV_A = signals [signum - 1].loop; |
|
|
2291 | |
|
|
2292 | if (!EV_A) |
|
|
2293 | return; |
|
|
2294 | #endif |
|
|
2295 | |
|
|
2296 | signals [signum - 1].pending = 1; |
|
|
2297 | evpipe_write (EV_A_ &sig_pending); |
|
|
2298 | } |
|
|
2299 | |
1174 | static void |
2300 | static void |
1175 | ev_sighandler (int signum) |
2301 | ev_sighandler (int signum) |
1176 | { |
2302 | { |
|
|
2303 | #ifdef _WIN32 |
|
|
2304 | signal (signum, ev_sighandler); |
|
|
2305 | #endif |
|
|
2306 | |
|
|
2307 | ev_feed_signal (signum); |
|
|
2308 | } |
|
|
2309 | |
|
|
2310 | void noinline |
|
|
2311 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
|
|
2312 | { |
|
|
2313 | WL w; |
|
|
2314 | |
|
|
2315 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
|
|
2316 | return; |
|
|
2317 | |
|
|
2318 | --signum; |
|
|
2319 | |
1177 | #if EV_MULTIPLICITY |
2320 | #if EV_MULTIPLICITY |
1178 | struct ev_loop *loop = &default_loop_struct; |
2321 | /* it is permissible to try to feed a signal to the wrong loop */ |
1179 | #endif |
2322 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1180 | |
2323 | |
1181 | #if _WIN32 |
2324 | if (expect_false (signals [signum].loop != EV_A)) |
1182 | signal (signum, ev_sighandler); |
|
|
1183 | #endif |
|
|
1184 | |
|
|
1185 | signals [signum - 1].gotsig = 1; |
|
|
1186 | evpipe_write (EV_A_ &gotsig); |
|
|
1187 | } |
|
|
1188 | |
|
|
1189 | void noinline |
|
|
1190 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1191 | { |
|
|
1192 | WL w; |
|
|
1193 | |
|
|
1194 | #if EV_MULTIPLICITY |
|
|
1195 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1196 | #endif |
|
|
1197 | |
|
|
1198 | --signum; |
|
|
1199 | |
|
|
1200 | if (signum < 0 || signum >= signalmax) |
|
|
1201 | return; |
2325 | return; |
|
|
2326 | #endif |
1202 | |
2327 | |
1203 | signals [signum].gotsig = 0; |
2328 | signals [signum].pending = 0; |
|
|
2329 | ECB_MEMORY_FENCE_RELEASE; |
1204 | |
2330 | |
1205 | for (w = signals [signum].head; w; w = w->next) |
2331 | for (w = signals [signum].head; w; w = w->next) |
1206 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2332 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1207 | } |
2333 | } |
1208 | |
2334 | |
|
|
2335 | #if EV_USE_SIGNALFD |
|
|
2336 | static void |
|
|
2337 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2338 | { |
|
|
2339 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2340 | |
|
|
2341 | for (;;) |
|
|
2342 | { |
|
|
2343 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2344 | |
|
|
2345 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2346 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2347 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2348 | |
|
|
2349 | if (res < (ssize_t)sizeof (si)) |
|
|
2350 | break; |
|
|
2351 | } |
|
|
2352 | } |
|
|
2353 | #endif |
|
|
2354 | |
|
|
2355 | #endif |
|
|
2356 | |
1209 | /*****************************************************************************/ |
2357 | /*****************************************************************************/ |
1210 | |
2358 | |
|
|
2359 | #if EV_CHILD_ENABLE |
1211 | static WL childs [EV_PID_HASHSIZE]; |
2360 | static WL childs [EV_PID_HASHSIZE]; |
1212 | |
|
|
1213 | #ifndef _WIN32 |
|
|
1214 | |
2361 | |
1215 | static ev_signal childev; |
2362 | static ev_signal childev; |
1216 | |
2363 | |
1217 | #ifndef WIFCONTINUED |
2364 | #ifndef WIFCONTINUED |
1218 | # define WIFCONTINUED(status) 0 |
2365 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1223 | child_reap (EV_P_ int chain, int pid, int status) |
2370 | child_reap (EV_P_ int chain, int pid, int status) |
1224 | { |
2371 | { |
1225 | ev_child *w; |
2372 | ev_child *w; |
1226 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2373 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1227 | |
2374 | |
1228 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2375 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1229 | { |
2376 | { |
1230 | if ((w->pid == pid || !w->pid) |
2377 | if ((w->pid == pid || !w->pid) |
1231 | && (!traced || (w->flags & 1))) |
2378 | && (!traced || (w->flags & 1))) |
1232 | { |
2379 | { |
1233 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2380 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1258 | /* make sure we are called again until all children have been reaped */ |
2405 | /* make sure we are called again until all children have been reaped */ |
1259 | /* we need to do it this way so that the callback gets called before we continue */ |
2406 | /* we need to do it this way so that the callback gets called before we continue */ |
1260 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2407 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1261 | |
2408 | |
1262 | child_reap (EV_A_ pid, pid, status); |
2409 | child_reap (EV_A_ pid, pid, status); |
1263 | if (EV_PID_HASHSIZE > 1) |
2410 | if ((EV_PID_HASHSIZE) > 1) |
1264 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2411 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1265 | } |
2412 | } |
1266 | |
2413 | |
1267 | #endif |
2414 | #endif |
1268 | |
2415 | |
1269 | /*****************************************************************************/ |
2416 | /*****************************************************************************/ |
1270 | |
2417 | |
|
|
2418 | #if EV_USE_IOCP |
|
|
2419 | # include "ev_iocp.c" |
|
|
2420 | #endif |
1271 | #if EV_USE_PORT |
2421 | #if EV_USE_PORT |
1272 | # include "ev_port.c" |
2422 | # include "ev_port.c" |
1273 | #endif |
2423 | #endif |
1274 | #if EV_USE_KQUEUE |
2424 | #if EV_USE_KQUEUE |
1275 | # include "ev_kqueue.c" |
2425 | # include "ev_kqueue.c" |
… | |
… | |
1282 | #endif |
2432 | #endif |
1283 | #if EV_USE_SELECT |
2433 | #if EV_USE_SELECT |
1284 | # include "ev_select.c" |
2434 | # include "ev_select.c" |
1285 | #endif |
2435 | #endif |
1286 | |
2436 | |
1287 | int |
2437 | int ecb_cold |
1288 | ev_version_major (void) |
2438 | ev_version_major (void) EV_THROW |
1289 | { |
2439 | { |
1290 | return EV_VERSION_MAJOR; |
2440 | return EV_VERSION_MAJOR; |
1291 | } |
2441 | } |
1292 | |
2442 | |
1293 | int |
2443 | int ecb_cold |
1294 | ev_version_minor (void) |
2444 | ev_version_minor (void) EV_THROW |
1295 | { |
2445 | { |
1296 | return EV_VERSION_MINOR; |
2446 | return EV_VERSION_MINOR; |
1297 | } |
2447 | } |
1298 | |
2448 | |
1299 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2449 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1300 | int inline_size |
2450 | int inline_size ecb_cold |
1301 | enable_secure (void) |
2451 | enable_secure (void) |
1302 | { |
2452 | { |
1303 | #ifdef _WIN32 |
2453 | #ifdef _WIN32 |
1304 | return 0; |
2454 | return 0; |
1305 | #else |
2455 | #else |
1306 | return getuid () != geteuid () |
2456 | return getuid () != geteuid () |
1307 | || getgid () != getegid (); |
2457 | || getgid () != getegid (); |
1308 | #endif |
2458 | #endif |
1309 | } |
2459 | } |
1310 | |
2460 | |
1311 | unsigned int |
2461 | unsigned int ecb_cold |
1312 | ev_supported_backends (void) |
2462 | ev_supported_backends (void) EV_THROW |
1313 | { |
2463 | { |
1314 | unsigned int flags = 0; |
2464 | unsigned int flags = 0; |
1315 | |
2465 | |
1316 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2466 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1317 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2467 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1320 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2470 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1321 | |
2471 | |
1322 | return flags; |
2472 | return flags; |
1323 | } |
2473 | } |
1324 | |
2474 | |
1325 | unsigned int |
2475 | unsigned int ecb_cold |
1326 | ev_recommended_backends (void) |
2476 | ev_recommended_backends (void) EV_THROW |
1327 | { |
2477 | { |
1328 | unsigned int flags = ev_supported_backends (); |
2478 | unsigned int flags = ev_supported_backends (); |
1329 | |
2479 | |
1330 | #ifndef __NetBSD__ |
2480 | #ifndef __NetBSD__ |
1331 | /* kqueue is borked on everything but netbsd apparently */ |
2481 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1335 | #ifdef __APPLE__ |
2485 | #ifdef __APPLE__ |
1336 | /* only select works correctly on that "unix-certified" platform */ |
2486 | /* only select works correctly on that "unix-certified" platform */ |
1337 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2487 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1338 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2488 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1339 | #endif |
2489 | #endif |
|
|
2490 | #ifdef __FreeBSD__ |
|
|
2491 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2492 | #endif |
1340 | |
2493 | |
1341 | return flags; |
2494 | return flags; |
1342 | } |
2495 | } |
1343 | |
2496 | |
|
|
2497 | unsigned int ecb_cold |
|
|
2498 | ev_embeddable_backends (void) EV_THROW |
|
|
2499 | { |
|
|
2500 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2501 | |
|
|
2502 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2503 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2504 | flags &= ~EVBACKEND_EPOLL; |
|
|
2505 | |
|
|
2506 | return flags; |
|
|
2507 | } |
|
|
2508 | |
1344 | unsigned int |
2509 | unsigned int |
1345 | ev_embeddable_backends (void) |
2510 | ev_backend (EV_P) EV_THROW |
1346 | { |
2511 | { |
1347 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2512 | return backend; |
1348 | |
|
|
1349 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1350 | /* please fix it and tell me how to detect the fix */ |
|
|
1351 | flags &= ~EVBACKEND_EPOLL; |
|
|
1352 | |
|
|
1353 | return flags; |
|
|
1354 | } |
2513 | } |
1355 | |
2514 | |
|
|
2515 | #if EV_FEATURE_API |
1356 | unsigned int |
2516 | unsigned int |
1357 | ev_backend (EV_P) |
2517 | ev_iteration (EV_P) EV_THROW |
1358 | { |
2518 | { |
1359 | return backend; |
2519 | return loop_count; |
1360 | } |
2520 | } |
1361 | |
2521 | |
1362 | unsigned int |
2522 | unsigned int |
1363 | ev_loop_count (EV_P) |
2523 | ev_depth (EV_P) EV_THROW |
1364 | { |
|
|
1365 | return loop_count; |
|
|
1366 | } |
|
|
1367 | |
|
|
1368 | unsigned int |
|
|
1369 | ev_loop_depth (EV_P) |
|
|
1370 | { |
2524 | { |
1371 | return loop_depth; |
2525 | return loop_depth; |
1372 | } |
2526 | } |
1373 | |
2527 | |
1374 | void |
2528 | void |
1375 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2529 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1376 | { |
2530 | { |
1377 | io_blocktime = interval; |
2531 | io_blocktime = interval; |
1378 | } |
2532 | } |
1379 | |
2533 | |
1380 | void |
2534 | void |
1381 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2535 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1382 | { |
2536 | { |
1383 | timeout_blocktime = interval; |
2537 | timeout_blocktime = interval; |
1384 | } |
2538 | } |
1385 | |
2539 | |
|
|
2540 | void |
|
|
2541 | ev_set_userdata (EV_P_ void *data) EV_THROW |
|
|
2542 | { |
|
|
2543 | userdata = data; |
|
|
2544 | } |
|
|
2545 | |
|
|
2546 | void * |
|
|
2547 | ev_userdata (EV_P) EV_THROW |
|
|
2548 | { |
|
|
2549 | return userdata; |
|
|
2550 | } |
|
|
2551 | |
|
|
2552 | void |
|
|
2553 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
|
|
2554 | { |
|
|
2555 | invoke_cb = invoke_pending_cb; |
|
|
2556 | } |
|
|
2557 | |
|
|
2558 | void |
|
|
2559 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
|
|
2560 | { |
|
|
2561 | release_cb = release; |
|
|
2562 | acquire_cb = acquire; |
|
|
2563 | } |
|
|
2564 | #endif |
|
|
2565 | |
1386 | /* initialise a loop structure, must be zero-initialised */ |
2566 | /* initialise a loop structure, must be zero-initialised */ |
1387 | static void noinline |
2567 | static void noinline ecb_cold |
1388 | loop_init (EV_P_ unsigned int flags) |
2568 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1389 | { |
2569 | { |
1390 | if (!backend) |
2570 | if (!backend) |
1391 | { |
2571 | { |
|
|
2572 | origflags = flags; |
|
|
2573 | |
1392 | #if EV_USE_REALTIME |
2574 | #if EV_USE_REALTIME |
1393 | if (!have_realtime) |
2575 | if (!have_realtime) |
1394 | { |
2576 | { |
1395 | struct timespec ts; |
2577 | struct timespec ts; |
1396 | |
2578 | |
… | |
… | |
1407 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2589 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1408 | have_monotonic = 1; |
2590 | have_monotonic = 1; |
1409 | } |
2591 | } |
1410 | #endif |
2592 | #endif |
1411 | |
2593 | |
1412 | ev_rt_now = ev_time (); |
|
|
1413 | mn_now = get_clock (); |
|
|
1414 | now_floor = mn_now; |
|
|
1415 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1416 | invoke_cb = ev_invoke_pending; |
|
|
1417 | |
|
|
1418 | io_blocktime = 0.; |
|
|
1419 | timeout_blocktime = 0.; |
|
|
1420 | backend = 0; |
|
|
1421 | backend_fd = -1; |
|
|
1422 | gotasync = 0; |
|
|
1423 | #if EV_USE_INOTIFY |
|
|
1424 | fs_fd = -2; |
|
|
1425 | #endif |
|
|
1426 | |
|
|
1427 | /* pid check not overridable via env */ |
2594 | /* pid check not overridable via env */ |
1428 | #ifndef _WIN32 |
2595 | #ifndef _WIN32 |
1429 | if (flags & EVFLAG_FORKCHECK) |
2596 | if (flags & EVFLAG_FORKCHECK) |
1430 | curpid = getpid (); |
2597 | curpid = getpid (); |
1431 | #endif |
2598 | #endif |
… | |
… | |
1433 | if (!(flags & EVFLAG_NOENV) |
2600 | if (!(flags & EVFLAG_NOENV) |
1434 | && !enable_secure () |
2601 | && !enable_secure () |
1435 | && getenv ("LIBEV_FLAGS")) |
2602 | && getenv ("LIBEV_FLAGS")) |
1436 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2603 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1437 | |
2604 | |
1438 | if (!(flags & 0x0000ffffU)) |
2605 | ev_rt_now = ev_time (); |
|
|
2606 | mn_now = get_clock (); |
|
|
2607 | now_floor = mn_now; |
|
|
2608 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2609 | #if EV_FEATURE_API |
|
|
2610 | invoke_cb = ev_invoke_pending; |
|
|
2611 | #endif |
|
|
2612 | |
|
|
2613 | io_blocktime = 0.; |
|
|
2614 | timeout_blocktime = 0.; |
|
|
2615 | backend = 0; |
|
|
2616 | backend_fd = -1; |
|
|
2617 | sig_pending = 0; |
|
|
2618 | #if EV_ASYNC_ENABLE |
|
|
2619 | async_pending = 0; |
|
|
2620 | #endif |
|
|
2621 | pipe_write_skipped = 0; |
|
|
2622 | pipe_write_wanted = 0; |
|
|
2623 | evpipe [0] = -1; |
|
|
2624 | evpipe [1] = -1; |
|
|
2625 | #if EV_USE_INOTIFY |
|
|
2626 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2627 | #endif |
|
|
2628 | #if EV_USE_SIGNALFD |
|
|
2629 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2630 | #endif |
|
|
2631 | |
|
|
2632 | if (!(flags & EVBACKEND_MASK)) |
1439 | flags |= ev_recommended_backends (); |
2633 | flags |= ev_recommended_backends (); |
1440 | |
2634 | |
|
|
2635 | #if EV_USE_IOCP |
|
|
2636 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2637 | #endif |
1441 | #if EV_USE_PORT |
2638 | #if EV_USE_PORT |
1442 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2639 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1443 | #endif |
2640 | #endif |
1444 | #if EV_USE_KQUEUE |
2641 | #if EV_USE_KQUEUE |
1445 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2642 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1454 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2651 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1455 | #endif |
2652 | #endif |
1456 | |
2653 | |
1457 | ev_prepare_init (&pending_w, pendingcb); |
2654 | ev_prepare_init (&pending_w, pendingcb); |
1458 | |
2655 | |
|
|
2656 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1459 | ev_init (&pipe_w, pipecb); |
2657 | ev_init (&pipe_w, pipecb); |
1460 | ev_set_priority (&pipe_w, EV_MAXPRI); |
2658 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2659 | #endif |
1461 | } |
2660 | } |
1462 | } |
2661 | } |
1463 | |
2662 | |
1464 | /* free up a loop structure */ |
2663 | /* free up a loop structure */ |
1465 | static void noinline |
2664 | void ecb_cold |
1466 | loop_destroy (EV_P) |
2665 | ev_loop_destroy (EV_P) |
1467 | { |
2666 | { |
1468 | int i; |
2667 | int i; |
1469 | |
2668 | |
|
|
2669 | #if EV_MULTIPLICITY |
|
|
2670 | /* mimic free (0) */ |
|
|
2671 | if (!EV_A) |
|
|
2672 | return; |
|
|
2673 | #endif |
|
|
2674 | |
|
|
2675 | #if EV_CLEANUP_ENABLE |
|
|
2676 | /* queue cleanup watchers (and execute them) */ |
|
|
2677 | if (expect_false (cleanupcnt)) |
|
|
2678 | { |
|
|
2679 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2680 | EV_INVOKE_PENDING; |
|
|
2681 | } |
|
|
2682 | #endif |
|
|
2683 | |
|
|
2684 | #if EV_CHILD_ENABLE |
|
|
2685 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2686 | { |
|
|
2687 | ev_ref (EV_A); /* child watcher */ |
|
|
2688 | ev_signal_stop (EV_A_ &childev); |
|
|
2689 | } |
|
|
2690 | #endif |
|
|
2691 | |
1470 | if (ev_is_active (&pipe_w)) |
2692 | if (ev_is_active (&pipe_w)) |
1471 | { |
2693 | { |
1472 | ev_ref (EV_A); /* signal watcher */ |
2694 | /*ev_ref (EV_A);*/ |
1473 | ev_io_stop (EV_A_ &pipe_w); |
2695 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1474 | |
2696 | |
|
|
2697 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2698 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2699 | } |
|
|
2700 | |
1475 | #if EV_USE_EVENTFD |
2701 | #if EV_USE_SIGNALFD |
1476 | if (evfd >= 0) |
2702 | if (ev_is_active (&sigfd_w)) |
1477 | close (evfd); |
2703 | close (sigfd); |
1478 | #endif |
2704 | #endif |
1479 | |
|
|
1480 | if (evpipe [0] >= 0) |
|
|
1481 | { |
|
|
1482 | close (evpipe [0]); |
|
|
1483 | close (evpipe [1]); |
|
|
1484 | } |
|
|
1485 | } |
|
|
1486 | |
2705 | |
1487 | #if EV_USE_INOTIFY |
2706 | #if EV_USE_INOTIFY |
1488 | if (fs_fd >= 0) |
2707 | if (fs_fd >= 0) |
1489 | close (fs_fd); |
2708 | close (fs_fd); |
1490 | #endif |
2709 | #endif |
1491 | |
2710 | |
1492 | if (backend_fd >= 0) |
2711 | if (backend_fd >= 0) |
1493 | close (backend_fd); |
2712 | close (backend_fd); |
1494 | |
2713 | |
|
|
2714 | #if EV_USE_IOCP |
|
|
2715 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2716 | #endif |
1495 | #if EV_USE_PORT |
2717 | #if EV_USE_PORT |
1496 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2718 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1497 | #endif |
2719 | #endif |
1498 | #if EV_USE_KQUEUE |
2720 | #if EV_USE_KQUEUE |
1499 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2721 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1514 | #if EV_IDLE_ENABLE |
2736 | #if EV_IDLE_ENABLE |
1515 | array_free (idle, [i]); |
2737 | array_free (idle, [i]); |
1516 | #endif |
2738 | #endif |
1517 | } |
2739 | } |
1518 | |
2740 | |
1519 | ev_free (anfds); anfdmax = 0; |
2741 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1520 | |
2742 | |
1521 | /* have to use the microsoft-never-gets-it-right macro */ |
2743 | /* have to use the microsoft-never-gets-it-right macro */ |
1522 | array_free (rfeed, EMPTY); |
2744 | array_free (rfeed, EMPTY); |
1523 | array_free (fdchange, EMPTY); |
2745 | array_free (fdchange, EMPTY); |
1524 | array_free (timer, EMPTY); |
2746 | array_free (timer, EMPTY); |
… | |
… | |
1526 | array_free (periodic, EMPTY); |
2748 | array_free (periodic, EMPTY); |
1527 | #endif |
2749 | #endif |
1528 | #if EV_FORK_ENABLE |
2750 | #if EV_FORK_ENABLE |
1529 | array_free (fork, EMPTY); |
2751 | array_free (fork, EMPTY); |
1530 | #endif |
2752 | #endif |
|
|
2753 | #if EV_CLEANUP_ENABLE |
|
|
2754 | array_free (cleanup, EMPTY); |
|
|
2755 | #endif |
1531 | array_free (prepare, EMPTY); |
2756 | array_free (prepare, EMPTY); |
1532 | array_free (check, EMPTY); |
2757 | array_free (check, EMPTY); |
1533 | #if EV_ASYNC_ENABLE |
2758 | #if EV_ASYNC_ENABLE |
1534 | array_free (async, EMPTY); |
2759 | array_free (async, EMPTY); |
1535 | #endif |
2760 | #endif |
1536 | |
2761 | |
1537 | backend = 0; |
2762 | backend = 0; |
|
|
2763 | |
|
|
2764 | #if EV_MULTIPLICITY |
|
|
2765 | if (ev_is_default_loop (EV_A)) |
|
|
2766 | #endif |
|
|
2767 | ev_default_loop_ptr = 0; |
|
|
2768 | #if EV_MULTIPLICITY |
|
|
2769 | else |
|
|
2770 | ev_free (EV_A); |
|
|
2771 | #endif |
1538 | } |
2772 | } |
1539 | |
2773 | |
1540 | #if EV_USE_INOTIFY |
2774 | #if EV_USE_INOTIFY |
1541 | inline_size void infy_fork (EV_P); |
2775 | inline_size void infy_fork (EV_P); |
1542 | #endif |
2776 | #endif |
… | |
… | |
1555 | #endif |
2789 | #endif |
1556 | #if EV_USE_INOTIFY |
2790 | #if EV_USE_INOTIFY |
1557 | infy_fork (EV_A); |
2791 | infy_fork (EV_A); |
1558 | #endif |
2792 | #endif |
1559 | |
2793 | |
|
|
2794 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1560 | if (ev_is_active (&pipe_w)) |
2795 | if (ev_is_active (&pipe_w)) |
1561 | { |
2796 | { |
1562 | /* this "locks" the handlers against writing to the pipe */ |
2797 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1563 | /* while we modify the fd vars */ |
|
|
1564 | gotsig = 1; |
|
|
1565 | #if EV_ASYNC_ENABLE |
|
|
1566 | gotasync = 1; |
|
|
1567 | #endif |
|
|
1568 | |
2798 | |
1569 | ev_ref (EV_A); |
2799 | ev_ref (EV_A); |
1570 | ev_io_stop (EV_A_ &pipe_w); |
2800 | ev_io_stop (EV_A_ &pipe_w); |
1571 | |
2801 | |
1572 | #if EV_USE_EVENTFD |
|
|
1573 | if (evfd >= 0) |
|
|
1574 | close (evfd); |
|
|
1575 | #endif |
|
|
1576 | |
|
|
1577 | if (evpipe [0] >= 0) |
2802 | if (evpipe [0] >= 0) |
1578 | { |
2803 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1579 | close (evpipe [0]); |
|
|
1580 | close (evpipe [1]); |
|
|
1581 | } |
|
|
1582 | |
2804 | |
1583 | evpipe_init (EV_A); |
2805 | evpipe_init (EV_A); |
1584 | /* now iterate over everything, in case we missed something */ |
2806 | /* iterate over everything, in case we missed something before */ |
1585 | pipecb (EV_A_ &pipe_w, EV_READ); |
2807 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1586 | } |
2808 | } |
|
|
2809 | #endif |
1587 | |
2810 | |
1588 | postfork = 0; |
2811 | postfork = 0; |
1589 | } |
2812 | } |
1590 | |
2813 | |
1591 | #if EV_MULTIPLICITY |
2814 | #if EV_MULTIPLICITY |
1592 | |
2815 | |
1593 | struct ev_loop * |
2816 | struct ev_loop * ecb_cold |
1594 | ev_loop_new (unsigned int flags) |
2817 | ev_loop_new (unsigned int flags) EV_THROW |
1595 | { |
2818 | { |
1596 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2819 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1597 | |
2820 | |
1598 | memset (loop, 0, sizeof (struct ev_loop)); |
2821 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1599 | |
|
|
1600 | loop_init (EV_A_ flags); |
2822 | loop_init (EV_A_ flags); |
1601 | |
2823 | |
1602 | if (ev_backend (EV_A)) |
2824 | if (ev_backend (EV_A)) |
1603 | return loop; |
2825 | return EV_A; |
1604 | |
2826 | |
|
|
2827 | ev_free (EV_A); |
1605 | return 0; |
2828 | return 0; |
1606 | } |
2829 | } |
1607 | |
2830 | |
1608 | void |
2831 | #endif /* multiplicity */ |
1609 | ev_loop_destroy (EV_P) |
|
|
1610 | { |
|
|
1611 | loop_destroy (EV_A); |
|
|
1612 | ev_free (loop); |
|
|
1613 | } |
|
|
1614 | |
|
|
1615 | void |
|
|
1616 | ev_loop_fork (EV_P) |
|
|
1617 | { |
|
|
1618 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1619 | } |
|
|
1620 | |
2832 | |
1621 | #if EV_VERIFY |
2833 | #if EV_VERIFY |
1622 | static void noinline |
2834 | static void noinline ecb_cold |
1623 | verify_watcher (EV_P_ W w) |
2835 | verify_watcher (EV_P_ W w) |
1624 | { |
2836 | { |
1625 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2837 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1626 | |
2838 | |
1627 | if (w->pending) |
2839 | if (w->pending) |
1628 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2840 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1629 | } |
2841 | } |
1630 | |
2842 | |
1631 | static void noinline |
2843 | static void noinline ecb_cold |
1632 | verify_heap (EV_P_ ANHE *heap, int N) |
2844 | verify_heap (EV_P_ ANHE *heap, int N) |
1633 | { |
2845 | { |
1634 | int i; |
2846 | int i; |
1635 | |
2847 | |
1636 | for (i = HEAP0; i < N + HEAP0; ++i) |
2848 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1641 | |
2853 | |
1642 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2854 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1643 | } |
2855 | } |
1644 | } |
2856 | } |
1645 | |
2857 | |
1646 | static void noinline |
2858 | static void noinline ecb_cold |
1647 | array_verify (EV_P_ W *ws, int cnt) |
2859 | array_verify (EV_P_ W *ws, int cnt) |
1648 | { |
2860 | { |
1649 | while (cnt--) |
2861 | while (cnt--) |
1650 | { |
2862 | { |
1651 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2863 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1652 | verify_watcher (EV_A_ ws [cnt]); |
2864 | verify_watcher (EV_A_ ws [cnt]); |
1653 | } |
2865 | } |
1654 | } |
2866 | } |
1655 | #endif |
2867 | #endif |
1656 | |
2868 | |
1657 | void |
2869 | #if EV_FEATURE_API |
1658 | ev_loop_verify (EV_P) |
2870 | void ecb_cold |
|
|
2871 | ev_verify (EV_P) EV_THROW |
1659 | { |
2872 | { |
1660 | #if EV_VERIFY |
2873 | #if EV_VERIFY |
1661 | int i; |
2874 | int i; |
1662 | WL w; |
2875 | WL w, w2; |
1663 | |
2876 | |
1664 | assert (activecnt >= -1); |
2877 | assert (activecnt >= -1); |
1665 | |
2878 | |
1666 | assert (fdchangemax >= fdchangecnt); |
2879 | assert (fdchangemax >= fdchangecnt); |
1667 | for (i = 0; i < fdchangecnt; ++i) |
2880 | for (i = 0; i < fdchangecnt; ++i) |
1668 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2881 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1669 | |
2882 | |
1670 | assert (anfdmax >= 0); |
2883 | assert (anfdmax >= 0); |
1671 | for (i = 0; i < anfdmax; ++i) |
2884 | for (i = 0; i < anfdmax; ++i) |
|
|
2885 | { |
|
|
2886 | int j = 0; |
|
|
2887 | |
1672 | for (w = anfds [i].head; w; w = w->next) |
2888 | for (w = w2 = anfds [i].head; w; w = w->next) |
1673 | { |
2889 | { |
1674 | verify_watcher (EV_A_ (W)w); |
2890 | verify_watcher (EV_A_ (W)w); |
|
|
2891 | |
|
|
2892 | if (j++ & 1) |
|
|
2893 | { |
|
|
2894 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2895 | w2 = w2->next; |
|
|
2896 | } |
|
|
2897 | |
1675 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2898 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1676 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2899 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1677 | } |
2900 | } |
|
|
2901 | } |
1678 | |
2902 | |
1679 | assert (timermax >= timercnt); |
2903 | assert (timermax >= timercnt); |
1680 | verify_heap (EV_A_ timers, timercnt); |
2904 | verify_heap (EV_A_ timers, timercnt); |
1681 | |
2905 | |
1682 | #if EV_PERIODIC_ENABLE |
2906 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1697 | #if EV_FORK_ENABLE |
2921 | #if EV_FORK_ENABLE |
1698 | assert (forkmax >= forkcnt); |
2922 | assert (forkmax >= forkcnt); |
1699 | array_verify (EV_A_ (W *)forks, forkcnt); |
2923 | array_verify (EV_A_ (W *)forks, forkcnt); |
1700 | #endif |
2924 | #endif |
1701 | |
2925 | |
|
|
2926 | #if EV_CLEANUP_ENABLE |
|
|
2927 | assert (cleanupmax >= cleanupcnt); |
|
|
2928 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2929 | #endif |
|
|
2930 | |
1702 | #if EV_ASYNC_ENABLE |
2931 | #if EV_ASYNC_ENABLE |
1703 | assert (asyncmax >= asynccnt); |
2932 | assert (asyncmax >= asynccnt); |
1704 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2933 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1705 | #endif |
2934 | #endif |
1706 | |
2935 | |
|
|
2936 | #if EV_PREPARE_ENABLE |
1707 | assert (preparemax >= preparecnt); |
2937 | assert (preparemax >= preparecnt); |
1708 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2938 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2939 | #endif |
1709 | |
2940 | |
|
|
2941 | #if EV_CHECK_ENABLE |
1710 | assert (checkmax >= checkcnt); |
2942 | assert (checkmax >= checkcnt); |
1711 | array_verify (EV_A_ (W *)checks, checkcnt); |
2943 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2944 | #endif |
1712 | |
2945 | |
1713 | # if 0 |
2946 | # if 0 |
|
|
2947 | #if EV_CHILD_ENABLE |
1714 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2948 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1715 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2949 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2950 | #endif |
1716 | # endif |
2951 | # endif |
1717 | #endif |
2952 | #endif |
1718 | } |
2953 | } |
1719 | |
2954 | #endif |
1720 | #endif /* multiplicity */ |
|
|
1721 | |
2955 | |
1722 | #if EV_MULTIPLICITY |
2956 | #if EV_MULTIPLICITY |
1723 | struct ev_loop * |
2957 | struct ev_loop * ecb_cold |
1724 | ev_default_loop_init (unsigned int flags) |
|
|
1725 | #else |
2958 | #else |
1726 | int |
2959 | int |
|
|
2960 | #endif |
1727 | ev_default_loop (unsigned int flags) |
2961 | ev_default_loop (unsigned int flags) EV_THROW |
1728 | #endif |
|
|
1729 | { |
2962 | { |
1730 | if (!ev_default_loop_ptr) |
2963 | if (!ev_default_loop_ptr) |
1731 | { |
2964 | { |
1732 | #if EV_MULTIPLICITY |
2965 | #if EV_MULTIPLICITY |
1733 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2966 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1734 | #else |
2967 | #else |
1735 | ev_default_loop_ptr = 1; |
2968 | ev_default_loop_ptr = 1; |
1736 | #endif |
2969 | #endif |
1737 | |
2970 | |
1738 | loop_init (EV_A_ flags); |
2971 | loop_init (EV_A_ flags); |
1739 | |
2972 | |
1740 | if (ev_backend (EV_A)) |
2973 | if (ev_backend (EV_A)) |
1741 | { |
2974 | { |
1742 | #ifndef _WIN32 |
2975 | #if EV_CHILD_ENABLE |
1743 | ev_signal_init (&childev, childcb, SIGCHLD); |
2976 | ev_signal_init (&childev, childcb, SIGCHLD); |
1744 | ev_set_priority (&childev, EV_MAXPRI); |
2977 | ev_set_priority (&childev, EV_MAXPRI); |
1745 | ev_signal_start (EV_A_ &childev); |
2978 | ev_signal_start (EV_A_ &childev); |
1746 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2979 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1747 | #endif |
2980 | #endif |
… | |
… | |
1752 | |
2985 | |
1753 | return ev_default_loop_ptr; |
2986 | return ev_default_loop_ptr; |
1754 | } |
2987 | } |
1755 | |
2988 | |
1756 | void |
2989 | void |
1757 | ev_default_destroy (void) |
2990 | ev_loop_fork (EV_P) EV_THROW |
1758 | { |
2991 | { |
1759 | #if EV_MULTIPLICITY |
2992 | postfork = 1; |
1760 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1761 | #endif |
|
|
1762 | |
|
|
1763 | ev_default_loop_ptr = 0; |
|
|
1764 | |
|
|
1765 | #ifndef _WIN32 |
|
|
1766 | ev_ref (EV_A); /* child watcher */ |
|
|
1767 | ev_signal_stop (EV_A_ &childev); |
|
|
1768 | #endif |
|
|
1769 | |
|
|
1770 | loop_destroy (EV_A); |
|
|
1771 | } |
|
|
1772 | |
|
|
1773 | void |
|
|
1774 | ev_default_fork (void) |
|
|
1775 | { |
|
|
1776 | #if EV_MULTIPLICITY |
|
|
1777 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1778 | #endif |
|
|
1779 | |
|
|
1780 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1781 | } |
2993 | } |
1782 | |
2994 | |
1783 | /*****************************************************************************/ |
2995 | /*****************************************************************************/ |
1784 | |
2996 | |
1785 | void |
2997 | void |
1786 | ev_invoke (EV_P_ void *w, int revents) |
2998 | ev_invoke (EV_P_ void *w, int revents) |
1787 | { |
2999 | { |
1788 | EV_CB_INVOKE ((W)w, revents); |
3000 | EV_CB_INVOKE ((W)w, revents); |
1789 | } |
3001 | } |
1790 | |
3002 | |
1791 | void |
3003 | unsigned int |
|
|
3004 | ev_pending_count (EV_P) EV_THROW |
|
|
3005 | { |
|
|
3006 | int pri; |
|
|
3007 | unsigned int count = 0; |
|
|
3008 | |
|
|
3009 | for (pri = NUMPRI; pri--; ) |
|
|
3010 | count += pendingcnt [pri]; |
|
|
3011 | |
|
|
3012 | return count; |
|
|
3013 | } |
|
|
3014 | |
|
|
3015 | void noinline |
1792 | ev_invoke_pending (EV_P) |
3016 | ev_invoke_pending (EV_P) |
1793 | { |
3017 | { |
1794 | int pri; |
3018 | pendingpri = NUMPRI; |
1795 | |
3019 | |
1796 | for (pri = NUMPRI; pri--; ) |
3020 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3021 | { |
|
|
3022 | --pendingpri; |
|
|
3023 | |
1797 | while (pendingcnt [pri]) |
3024 | while (pendingcnt [pendingpri]) |
1798 | { |
3025 | { |
1799 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3026 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1800 | |
3027 | |
1801 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1802 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1803 | |
|
|
1804 | p->w->pending = 0; |
3028 | p->w->pending = 0; |
1805 | EV_CB_INVOKE (p->w, p->events); |
3029 | EV_CB_INVOKE (p->w, p->events); |
1806 | EV_FREQUENT_CHECK; |
3030 | EV_FREQUENT_CHECK; |
1807 | } |
3031 | } |
|
|
3032 | } |
1808 | } |
3033 | } |
1809 | |
3034 | |
1810 | #if EV_IDLE_ENABLE |
3035 | #if EV_IDLE_ENABLE |
1811 | /* make idle watchers pending. this handles the "call-idle */ |
3036 | /* make idle watchers pending. this handles the "call-idle */ |
1812 | /* only when higher priorities are idle" logic */ |
3037 | /* only when higher priorities are idle" logic */ |
… | |
… | |
1864 | EV_FREQUENT_CHECK; |
3089 | EV_FREQUENT_CHECK; |
1865 | feed_reverse (EV_A_ (W)w); |
3090 | feed_reverse (EV_A_ (W)w); |
1866 | } |
3091 | } |
1867 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3092 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1868 | |
3093 | |
1869 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3094 | feed_reverse_done (EV_A_ EV_TIMER); |
1870 | } |
3095 | } |
1871 | } |
3096 | } |
1872 | |
3097 | |
1873 | #if EV_PERIODIC_ENABLE |
3098 | #if EV_PERIODIC_ENABLE |
|
|
3099 | |
|
|
3100 | static void noinline |
|
|
3101 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3102 | { |
|
|
3103 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3104 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3105 | |
|
|
3106 | /* the above almost always errs on the low side */ |
|
|
3107 | while (at <= ev_rt_now) |
|
|
3108 | { |
|
|
3109 | ev_tstamp nat = at + w->interval; |
|
|
3110 | |
|
|
3111 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3112 | if (expect_false (nat == at)) |
|
|
3113 | { |
|
|
3114 | at = ev_rt_now; |
|
|
3115 | break; |
|
|
3116 | } |
|
|
3117 | |
|
|
3118 | at = nat; |
|
|
3119 | } |
|
|
3120 | |
|
|
3121 | ev_at (w) = at; |
|
|
3122 | } |
|
|
3123 | |
1874 | /* make periodics pending */ |
3124 | /* make periodics pending */ |
1875 | inline_size void |
3125 | inline_size void |
1876 | periodics_reify (EV_P) |
3126 | periodics_reify (EV_P) |
1877 | { |
3127 | { |
1878 | EV_FREQUENT_CHECK; |
3128 | EV_FREQUENT_CHECK; |
1879 | |
3129 | |
1880 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3130 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1881 | { |
3131 | { |
1882 | int feed_count = 0; |
|
|
1883 | |
|
|
1884 | do |
3132 | do |
1885 | { |
3133 | { |
1886 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3134 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1887 | |
3135 | |
1888 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3136 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
1897 | ANHE_at_cache (periodics [HEAP0]); |
3145 | ANHE_at_cache (periodics [HEAP0]); |
1898 | downheap (periodics, periodiccnt, HEAP0); |
3146 | downheap (periodics, periodiccnt, HEAP0); |
1899 | } |
3147 | } |
1900 | else if (w->interval) |
3148 | else if (w->interval) |
1901 | { |
3149 | { |
1902 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3150 | periodic_recalc (EV_A_ w); |
1903 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1904 | /* this might happen because of floating point inexactness */ |
|
|
1905 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1906 | { |
|
|
1907 | ev_at (w) += w->interval; |
|
|
1908 | |
|
|
1909 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1910 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1911 | /* has effectively asked to get triggered more often than possible */ |
|
|
1912 | if (ev_at (w) < ev_rt_now) |
|
|
1913 | ev_at (w) = ev_rt_now; |
|
|
1914 | } |
|
|
1915 | |
|
|
1916 | ANHE_at_cache (periodics [HEAP0]); |
3151 | ANHE_at_cache (periodics [HEAP0]); |
1917 | downheap (periodics, periodiccnt, HEAP0); |
3152 | downheap (periodics, periodiccnt, HEAP0); |
1918 | } |
3153 | } |
1919 | else |
3154 | else |
1920 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3155 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
1927 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3162 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1928 | } |
3163 | } |
1929 | } |
3164 | } |
1930 | |
3165 | |
1931 | /* simply recalculate all periodics */ |
3166 | /* simply recalculate all periodics */ |
1932 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3167 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1933 | static void noinline |
3168 | static void noinline ecb_cold |
1934 | periodics_reschedule (EV_P) |
3169 | periodics_reschedule (EV_P) |
1935 | { |
3170 | { |
1936 | int i; |
3171 | int i; |
1937 | |
3172 | |
1938 | /* adjust periodics after time jump */ |
3173 | /* adjust periodics after time jump */ |
… | |
… | |
1941 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3176 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1942 | |
3177 | |
1943 | if (w->reschedule_cb) |
3178 | if (w->reschedule_cb) |
1944 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3179 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1945 | else if (w->interval) |
3180 | else if (w->interval) |
1946 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3181 | periodic_recalc (EV_A_ w); |
1947 | |
3182 | |
1948 | ANHE_at_cache (periodics [i]); |
3183 | ANHE_at_cache (periodics [i]); |
1949 | } |
3184 | } |
1950 | |
3185 | |
1951 | reheap (periodics, periodiccnt); |
3186 | reheap (periodics, periodiccnt); |
1952 | } |
3187 | } |
1953 | #endif |
3188 | #endif |
1954 | |
3189 | |
1955 | /* adjust all timers by a given offset */ |
3190 | /* adjust all timers by a given offset */ |
1956 | static void noinline |
3191 | static void noinline ecb_cold |
1957 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3192 | timers_reschedule (EV_P_ ev_tstamp adjust) |
1958 | { |
3193 | { |
1959 | int i; |
3194 | int i; |
1960 | |
3195 | |
1961 | for (i = 0; i < timercnt; ++i) |
3196 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
1965 | ANHE_at_cache (*he); |
3200 | ANHE_at_cache (*he); |
1966 | } |
3201 | } |
1967 | } |
3202 | } |
1968 | |
3203 | |
1969 | /* fetch new monotonic and realtime times from the kernel */ |
3204 | /* fetch new monotonic and realtime times from the kernel */ |
1970 | /* also detetc if there was a timejump, and act accordingly */ |
3205 | /* also detect if there was a timejump, and act accordingly */ |
1971 | inline_speed void |
3206 | inline_speed void |
1972 | time_update (EV_P_ ev_tstamp max_block) |
3207 | time_update (EV_P_ ev_tstamp max_block) |
1973 | { |
3208 | { |
1974 | #if EV_USE_MONOTONIC |
3209 | #if EV_USE_MONOTONIC |
1975 | if (expect_true (have_monotonic)) |
3210 | if (expect_true (have_monotonic)) |
… | |
… | |
1998 | * doesn't hurt either as we only do this on time-jumps or |
3233 | * doesn't hurt either as we only do this on time-jumps or |
1999 | * in the unlikely event of having been preempted here. |
3234 | * in the unlikely event of having been preempted here. |
2000 | */ |
3235 | */ |
2001 | for (i = 4; --i; ) |
3236 | for (i = 4; --i; ) |
2002 | { |
3237 | { |
|
|
3238 | ev_tstamp diff; |
2003 | rtmn_diff = ev_rt_now - mn_now; |
3239 | rtmn_diff = ev_rt_now - mn_now; |
2004 | |
3240 | |
|
|
3241 | diff = odiff - rtmn_diff; |
|
|
3242 | |
2005 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3243 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2006 | return; /* all is well */ |
3244 | return; /* all is well */ |
2007 | |
3245 | |
2008 | ev_rt_now = ev_time (); |
3246 | ev_rt_now = ev_time (); |
2009 | mn_now = get_clock (); |
3247 | mn_now = get_clock (); |
2010 | now_floor = mn_now; |
3248 | now_floor = mn_now; |
… | |
… | |
2032 | |
3270 | |
2033 | mn_now = ev_rt_now; |
3271 | mn_now = ev_rt_now; |
2034 | } |
3272 | } |
2035 | } |
3273 | } |
2036 | |
3274 | |
2037 | void |
3275 | int |
2038 | ev_loop (EV_P_ int flags) |
3276 | ev_run (EV_P_ int flags) |
2039 | { |
3277 | { |
|
|
3278 | #if EV_FEATURE_API |
2040 | ++loop_depth; |
3279 | ++loop_depth; |
|
|
3280 | #endif |
2041 | |
3281 | |
|
|
3282 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3283 | |
2042 | loop_done = EVUNLOOP_CANCEL; |
3284 | loop_done = EVBREAK_CANCEL; |
2043 | |
3285 | |
2044 | invoke_cb (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
3286 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2045 | |
3287 | |
2046 | do |
3288 | do |
2047 | { |
3289 | { |
2048 | #if EV_VERIFY >= 2 |
3290 | #if EV_VERIFY >= 2 |
2049 | ev_loop_verify (EV_A); |
3291 | ev_verify (EV_A); |
2050 | #endif |
3292 | #endif |
2051 | |
3293 | |
2052 | #ifndef _WIN32 |
3294 | #ifndef _WIN32 |
2053 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3295 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2054 | if (expect_false (getpid () != curpid)) |
3296 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2062 | /* we might have forked, so queue fork handlers */ |
3304 | /* we might have forked, so queue fork handlers */ |
2063 | if (expect_false (postfork)) |
3305 | if (expect_false (postfork)) |
2064 | if (forkcnt) |
3306 | if (forkcnt) |
2065 | { |
3307 | { |
2066 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3308 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2067 | invoke_cb (EV_A); |
3309 | EV_INVOKE_PENDING; |
2068 | } |
3310 | } |
2069 | #endif |
3311 | #endif |
2070 | |
3312 | |
|
|
3313 | #if EV_PREPARE_ENABLE |
2071 | /* queue prepare watchers (and execute them) */ |
3314 | /* queue prepare watchers (and execute them) */ |
2072 | if (expect_false (preparecnt)) |
3315 | if (expect_false (preparecnt)) |
2073 | { |
3316 | { |
2074 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3317 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2075 | invoke_cb (EV_A); |
3318 | EV_INVOKE_PENDING; |
2076 | } |
3319 | } |
|
|
3320 | #endif |
|
|
3321 | |
|
|
3322 | if (expect_false (loop_done)) |
|
|
3323 | break; |
2077 | |
3324 | |
2078 | /* we might have forked, so reify kernel state if necessary */ |
3325 | /* we might have forked, so reify kernel state if necessary */ |
2079 | if (expect_false (postfork)) |
3326 | if (expect_false (postfork)) |
2080 | loop_fork (EV_A); |
3327 | loop_fork (EV_A); |
2081 | |
3328 | |
… | |
… | |
2085 | /* calculate blocking time */ |
3332 | /* calculate blocking time */ |
2086 | { |
3333 | { |
2087 | ev_tstamp waittime = 0.; |
3334 | ev_tstamp waittime = 0.; |
2088 | ev_tstamp sleeptime = 0.; |
3335 | ev_tstamp sleeptime = 0.; |
2089 | |
3336 | |
|
|
3337 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3338 | ev_tstamp prev_mn_now = mn_now; |
|
|
3339 | |
|
|
3340 | /* update time to cancel out callback processing overhead */ |
|
|
3341 | time_update (EV_A_ 1e100); |
|
|
3342 | |
|
|
3343 | /* from now on, we want a pipe-wake-up */ |
|
|
3344 | pipe_write_wanted = 1; |
|
|
3345 | |
|
|
3346 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3347 | |
2090 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3348 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2091 | { |
3349 | { |
2092 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2093 | ev_tstamp prev_mn_now = mn_now; |
|
|
2094 | |
|
|
2095 | /* update time to cancel out callback processing overhead */ |
|
|
2096 | time_update (EV_A_ 1e100); |
|
|
2097 | |
|
|
2098 | waittime = MAX_BLOCKTIME; |
3350 | waittime = MAX_BLOCKTIME; |
2099 | |
3351 | |
2100 | if (timercnt) |
3352 | if (timercnt) |
2101 | { |
3353 | { |
2102 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3354 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2103 | if (waittime > to) waittime = to; |
3355 | if (waittime > to) waittime = to; |
2104 | } |
3356 | } |
2105 | |
3357 | |
2106 | #if EV_PERIODIC_ENABLE |
3358 | #if EV_PERIODIC_ENABLE |
2107 | if (periodiccnt) |
3359 | if (periodiccnt) |
2108 | { |
3360 | { |
2109 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3361 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2110 | if (waittime > to) waittime = to; |
3362 | if (waittime > to) waittime = to; |
2111 | } |
3363 | } |
2112 | #endif |
3364 | #endif |
2113 | |
3365 | |
2114 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3366 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2115 | if (expect_false (waittime < timeout_blocktime)) |
3367 | if (expect_false (waittime < timeout_blocktime)) |
2116 | waittime = timeout_blocktime; |
3368 | waittime = timeout_blocktime; |
|
|
3369 | |
|
|
3370 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3371 | /* to pass a minimum nonzero value to the backend */ |
|
|
3372 | if (expect_false (waittime < backend_mintime)) |
|
|
3373 | waittime = backend_mintime; |
2117 | |
3374 | |
2118 | /* extra check because io_blocktime is commonly 0 */ |
3375 | /* extra check because io_blocktime is commonly 0 */ |
2119 | if (expect_false (io_blocktime)) |
3376 | if (expect_false (io_blocktime)) |
2120 | { |
3377 | { |
2121 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3378 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2122 | |
3379 | |
2123 | if (sleeptime > waittime - backend_fudge) |
3380 | if (sleeptime > waittime - backend_mintime) |
2124 | sleeptime = waittime - backend_fudge; |
3381 | sleeptime = waittime - backend_mintime; |
2125 | |
3382 | |
2126 | if (expect_true (sleeptime > 0.)) |
3383 | if (expect_true (sleeptime > 0.)) |
2127 | { |
3384 | { |
2128 | ev_sleep (sleeptime); |
3385 | ev_sleep (sleeptime); |
2129 | waittime -= sleeptime; |
3386 | waittime -= sleeptime; |
2130 | } |
3387 | } |
2131 | } |
3388 | } |
2132 | } |
3389 | } |
2133 | |
3390 | |
|
|
3391 | #if EV_FEATURE_API |
2134 | ++loop_count; |
3392 | ++loop_count; |
|
|
3393 | #endif |
|
|
3394 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2135 | backend_poll (EV_A_ waittime); |
3395 | backend_poll (EV_A_ waittime); |
|
|
3396 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3397 | |
|
|
3398 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3399 | |
|
|
3400 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3401 | if (pipe_write_skipped) |
|
|
3402 | { |
|
|
3403 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3404 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3405 | } |
|
|
3406 | |
2136 | |
3407 | |
2137 | /* update ev_rt_now, do magic */ |
3408 | /* update ev_rt_now, do magic */ |
2138 | time_update (EV_A_ waittime + sleeptime); |
3409 | time_update (EV_A_ waittime + sleeptime); |
2139 | } |
3410 | } |
2140 | |
3411 | |
… | |
… | |
2147 | #if EV_IDLE_ENABLE |
3418 | #if EV_IDLE_ENABLE |
2148 | /* queue idle watchers unless other events are pending */ |
3419 | /* queue idle watchers unless other events are pending */ |
2149 | idle_reify (EV_A); |
3420 | idle_reify (EV_A); |
2150 | #endif |
3421 | #endif |
2151 | |
3422 | |
|
|
3423 | #if EV_CHECK_ENABLE |
2152 | /* queue check watchers, to be executed first */ |
3424 | /* queue check watchers, to be executed first */ |
2153 | if (expect_false (checkcnt)) |
3425 | if (expect_false (checkcnt)) |
2154 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3426 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3427 | #endif |
2155 | |
3428 | |
2156 | invoke_cb (EV_A); |
3429 | EV_INVOKE_PENDING; |
2157 | } |
3430 | } |
2158 | while (expect_true ( |
3431 | while (expect_true ( |
2159 | activecnt |
3432 | activecnt |
2160 | && !loop_done |
3433 | && !loop_done |
2161 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3434 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2162 | )); |
3435 | )); |
2163 | |
3436 | |
2164 | if (loop_done == EVUNLOOP_ONE) |
3437 | if (loop_done == EVBREAK_ONE) |
2165 | loop_done = EVUNLOOP_CANCEL; |
3438 | loop_done = EVBREAK_CANCEL; |
2166 | |
3439 | |
|
|
3440 | #if EV_FEATURE_API |
2167 | --loop_depth; |
3441 | --loop_depth; |
|
|
3442 | #endif |
|
|
3443 | |
|
|
3444 | return activecnt; |
2168 | } |
3445 | } |
2169 | |
3446 | |
2170 | void |
3447 | void |
2171 | ev_unloop (EV_P_ int how) |
3448 | ev_break (EV_P_ int how) EV_THROW |
2172 | { |
3449 | { |
2173 | loop_done = how; |
3450 | loop_done = how; |
2174 | } |
3451 | } |
2175 | |
3452 | |
2176 | void |
3453 | void |
2177 | ev_ref (EV_P) |
3454 | ev_ref (EV_P) EV_THROW |
2178 | { |
3455 | { |
2179 | ++activecnt; |
3456 | ++activecnt; |
2180 | } |
3457 | } |
2181 | |
3458 | |
2182 | void |
3459 | void |
2183 | ev_unref (EV_P) |
3460 | ev_unref (EV_P) EV_THROW |
2184 | { |
3461 | { |
2185 | --activecnt; |
3462 | --activecnt; |
2186 | } |
3463 | } |
2187 | |
3464 | |
2188 | void |
3465 | void |
2189 | ev_now_update (EV_P) |
3466 | ev_now_update (EV_P) EV_THROW |
2190 | { |
3467 | { |
2191 | time_update (EV_A_ 1e100); |
3468 | time_update (EV_A_ 1e100); |
2192 | } |
3469 | } |
2193 | |
3470 | |
2194 | void |
3471 | void |
2195 | ev_suspend (EV_P) |
3472 | ev_suspend (EV_P) EV_THROW |
2196 | { |
3473 | { |
2197 | ev_now_update (EV_A); |
3474 | ev_now_update (EV_A); |
2198 | } |
3475 | } |
2199 | |
3476 | |
2200 | void |
3477 | void |
2201 | ev_resume (EV_P) |
3478 | ev_resume (EV_P) EV_THROW |
2202 | { |
3479 | { |
2203 | ev_tstamp mn_prev = mn_now; |
3480 | ev_tstamp mn_prev = mn_now; |
2204 | |
3481 | |
2205 | ev_now_update (EV_A); |
3482 | ev_now_update (EV_A); |
2206 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3483 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2223 | inline_size void |
3500 | inline_size void |
2224 | wlist_del (WL *head, WL elem) |
3501 | wlist_del (WL *head, WL elem) |
2225 | { |
3502 | { |
2226 | while (*head) |
3503 | while (*head) |
2227 | { |
3504 | { |
2228 | if (*head == elem) |
3505 | if (expect_true (*head == elem)) |
2229 | { |
3506 | { |
2230 | *head = elem->next; |
3507 | *head = elem->next; |
2231 | return; |
3508 | break; |
2232 | } |
3509 | } |
2233 | |
3510 | |
2234 | head = &(*head)->next; |
3511 | head = &(*head)->next; |
2235 | } |
3512 | } |
2236 | } |
3513 | } |
… | |
… | |
2245 | w->pending = 0; |
3522 | w->pending = 0; |
2246 | } |
3523 | } |
2247 | } |
3524 | } |
2248 | |
3525 | |
2249 | int |
3526 | int |
2250 | ev_clear_pending (EV_P_ void *w) |
3527 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2251 | { |
3528 | { |
2252 | W w_ = (W)w; |
3529 | W w_ = (W)w; |
2253 | int pending = w_->pending; |
3530 | int pending = w_->pending; |
2254 | |
3531 | |
2255 | if (expect_true (pending)) |
3532 | if (expect_true (pending)) |
… | |
… | |
2288 | } |
3565 | } |
2289 | |
3566 | |
2290 | /*****************************************************************************/ |
3567 | /*****************************************************************************/ |
2291 | |
3568 | |
2292 | void noinline |
3569 | void noinline |
2293 | ev_io_start (EV_P_ ev_io *w) |
3570 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2294 | { |
3571 | { |
2295 | int fd = w->fd; |
3572 | int fd = w->fd; |
2296 | |
3573 | |
2297 | if (expect_false (ev_is_active (w))) |
3574 | if (expect_false (ev_is_active (w))) |
2298 | return; |
3575 | return; |
2299 | |
3576 | |
2300 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3577 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2301 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3578 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2302 | |
3579 | |
2303 | EV_FREQUENT_CHECK; |
3580 | EV_FREQUENT_CHECK; |
2304 | |
3581 | |
2305 | ev_start (EV_A_ (W)w, 1); |
3582 | ev_start (EV_A_ (W)w, 1); |
2306 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3583 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2307 | wlist_add (&anfds[fd].head, (WL)w); |
3584 | wlist_add (&anfds[fd].head, (WL)w); |
2308 | |
3585 | |
|
|
3586 | /* common bug, apparently */ |
|
|
3587 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3588 | |
2309 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
3589 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2310 | w->events &= ~EV__IOFDSET; |
3590 | w->events &= ~EV__IOFDSET; |
2311 | |
3591 | |
2312 | EV_FREQUENT_CHECK; |
3592 | EV_FREQUENT_CHECK; |
2313 | } |
3593 | } |
2314 | |
3594 | |
2315 | void noinline |
3595 | void noinline |
2316 | ev_io_stop (EV_P_ ev_io *w) |
3596 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2317 | { |
3597 | { |
2318 | clear_pending (EV_A_ (W)w); |
3598 | clear_pending (EV_A_ (W)w); |
2319 | if (expect_false (!ev_is_active (w))) |
3599 | if (expect_false (!ev_is_active (w))) |
2320 | return; |
3600 | return; |
2321 | |
3601 | |
… | |
… | |
2324 | EV_FREQUENT_CHECK; |
3604 | EV_FREQUENT_CHECK; |
2325 | |
3605 | |
2326 | wlist_del (&anfds[w->fd].head, (WL)w); |
3606 | wlist_del (&anfds[w->fd].head, (WL)w); |
2327 | ev_stop (EV_A_ (W)w); |
3607 | ev_stop (EV_A_ (W)w); |
2328 | |
3608 | |
2329 | fd_change (EV_A_ w->fd, 1); |
3609 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2330 | |
3610 | |
2331 | EV_FREQUENT_CHECK; |
3611 | EV_FREQUENT_CHECK; |
2332 | } |
3612 | } |
2333 | |
3613 | |
2334 | void noinline |
3614 | void noinline |
2335 | ev_timer_start (EV_P_ ev_timer *w) |
3615 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2336 | { |
3616 | { |
2337 | if (expect_false (ev_is_active (w))) |
3617 | if (expect_false (ev_is_active (w))) |
2338 | return; |
3618 | return; |
2339 | |
3619 | |
2340 | ev_at (w) += mn_now; |
3620 | ev_at (w) += mn_now; |
… | |
… | |
2354 | |
3634 | |
2355 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3635 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2356 | } |
3636 | } |
2357 | |
3637 | |
2358 | void noinline |
3638 | void noinline |
2359 | ev_timer_stop (EV_P_ ev_timer *w) |
3639 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2360 | { |
3640 | { |
2361 | clear_pending (EV_A_ (W)w); |
3641 | clear_pending (EV_A_ (W)w); |
2362 | if (expect_false (!ev_is_active (w))) |
3642 | if (expect_false (!ev_is_active (w))) |
2363 | return; |
3643 | return; |
2364 | |
3644 | |
… | |
… | |
2376 | timers [active] = timers [timercnt + HEAP0]; |
3656 | timers [active] = timers [timercnt + HEAP0]; |
2377 | adjustheap (timers, timercnt, active); |
3657 | adjustheap (timers, timercnt, active); |
2378 | } |
3658 | } |
2379 | } |
3659 | } |
2380 | |
3660 | |
2381 | EV_FREQUENT_CHECK; |
|
|
2382 | |
|
|
2383 | ev_at (w) -= mn_now; |
3661 | ev_at (w) -= mn_now; |
2384 | |
3662 | |
2385 | ev_stop (EV_A_ (W)w); |
3663 | ev_stop (EV_A_ (W)w); |
|
|
3664 | |
|
|
3665 | EV_FREQUENT_CHECK; |
2386 | } |
3666 | } |
2387 | |
3667 | |
2388 | void noinline |
3668 | void noinline |
2389 | ev_timer_again (EV_P_ ev_timer *w) |
3669 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2390 | { |
3670 | { |
2391 | EV_FREQUENT_CHECK; |
3671 | EV_FREQUENT_CHECK; |
|
|
3672 | |
|
|
3673 | clear_pending (EV_A_ (W)w); |
2392 | |
3674 | |
2393 | if (ev_is_active (w)) |
3675 | if (ev_is_active (w)) |
2394 | { |
3676 | { |
2395 | if (w->repeat) |
3677 | if (w->repeat) |
2396 | { |
3678 | { |
… | |
… | |
2408 | } |
3690 | } |
2409 | |
3691 | |
2410 | EV_FREQUENT_CHECK; |
3692 | EV_FREQUENT_CHECK; |
2411 | } |
3693 | } |
2412 | |
3694 | |
|
|
3695 | ev_tstamp |
|
|
3696 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
|
|
3697 | { |
|
|
3698 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
3699 | } |
|
|
3700 | |
2413 | #if EV_PERIODIC_ENABLE |
3701 | #if EV_PERIODIC_ENABLE |
2414 | void noinline |
3702 | void noinline |
2415 | ev_periodic_start (EV_P_ ev_periodic *w) |
3703 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2416 | { |
3704 | { |
2417 | if (expect_false (ev_is_active (w))) |
3705 | if (expect_false (ev_is_active (w))) |
2418 | return; |
3706 | return; |
2419 | |
3707 | |
2420 | if (w->reschedule_cb) |
3708 | if (w->reschedule_cb) |
2421 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3709 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2422 | else if (w->interval) |
3710 | else if (w->interval) |
2423 | { |
3711 | { |
2424 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3712 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2425 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3713 | periodic_recalc (EV_A_ w); |
2426 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2427 | } |
3714 | } |
2428 | else |
3715 | else |
2429 | ev_at (w) = w->offset; |
3716 | ev_at (w) = w->offset; |
2430 | |
3717 | |
2431 | EV_FREQUENT_CHECK; |
3718 | EV_FREQUENT_CHECK; |
… | |
… | |
2441 | |
3728 | |
2442 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3729 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2443 | } |
3730 | } |
2444 | |
3731 | |
2445 | void noinline |
3732 | void noinline |
2446 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3733 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2447 | { |
3734 | { |
2448 | clear_pending (EV_A_ (W)w); |
3735 | clear_pending (EV_A_ (W)w); |
2449 | if (expect_false (!ev_is_active (w))) |
3736 | if (expect_false (!ev_is_active (w))) |
2450 | return; |
3737 | return; |
2451 | |
3738 | |
… | |
… | |
2463 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3750 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2464 | adjustheap (periodics, periodiccnt, active); |
3751 | adjustheap (periodics, periodiccnt, active); |
2465 | } |
3752 | } |
2466 | } |
3753 | } |
2467 | |
3754 | |
2468 | EV_FREQUENT_CHECK; |
|
|
2469 | |
|
|
2470 | ev_stop (EV_A_ (W)w); |
3755 | ev_stop (EV_A_ (W)w); |
|
|
3756 | |
|
|
3757 | EV_FREQUENT_CHECK; |
2471 | } |
3758 | } |
2472 | |
3759 | |
2473 | void noinline |
3760 | void noinline |
2474 | ev_periodic_again (EV_P_ ev_periodic *w) |
3761 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2475 | { |
3762 | { |
2476 | /* TODO: use adjustheap and recalculation */ |
3763 | /* TODO: use adjustheap and recalculation */ |
2477 | ev_periodic_stop (EV_A_ w); |
3764 | ev_periodic_stop (EV_A_ w); |
2478 | ev_periodic_start (EV_A_ w); |
3765 | ev_periodic_start (EV_A_ w); |
2479 | } |
3766 | } |
… | |
… | |
2481 | |
3768 | |
2482 | #ifndef SA_RESTART |
3769 | #ifndef SA_RESTART |
2483 | # define SA_RESTART 0 |
3770 | # define SA_RESTART 0 |
2484 | #endif |
3771 | #endif |
2485 | |
3772 | |
|
|
3773 | #if EV_SIGNAL_ENABLE |
|
|
3774 | |
2486 | void noinline |
3775 | void noinline |
2487 | ev_signal_start (EV_P_ ev_signal *w) |
3776 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2488 | { |
3777 | { |
2489 | #if EV_MULTIPLICITY |
|
|
2490 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2491 | #endif |
|
|
2492 | if (expect_false (ev_is_active (w))) |
3778 | if (expect_false (ev_is_active (w))) |
2493 | return; |
3779 | return; |
2494 | |
3780 | |
2495 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
3781 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2496 | |
3782 | |
2497 | evpipe_init (EV_A); |
3783 | #if EV_MULTIPLICITY |
|
|
3784 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3785 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2498 | |
3786 | |
2499 | EV_FREQUENT_CHECK; |
3787 | signals [w->signum - 1].loop = EV_A; |
|
|
3788 | ECB_MEMORY_FENCE_RELEASE; |
|
|
3789 | #endif |
2500 | |
3790 | |
|
|
3791 | EV_FREQUENT_CHECK; |
|
|
3792 | |
|
|
3793 | #if EV_USE_SIGNALFD |
|
|
3794 | if (sigfd == -2) |
2501 | { |
3795 | { |
2502 | #ifndef _WIN32 |
3796 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2503 | sigset_t full, prev; |
3797 | if (sigfd < 0 && errno == EINVAL) |
2504 | sigfillset (&full); |
3798 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2505 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2506 | #endif |
|
|
2507 | |
3799 | |
2508 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
3800 | if (sigfd >= 0) |
|
|
3801 | { |
|
|
3802 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2509 | |
3803 | |
2510 | #ifndef _WIN32 |
3804 | sigemptyset (&sigfd_set); |
2511 | sigprocmask (SIG_SETMASK, &prev, 0); |
3805 | |
2512 | #endif |
3806 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3807 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3808 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3809 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3810 | } |
2513 | } |
3811 | } |
|
|
3812 | |
|
|
3813 | if (sigfd >= 0) |
|
|
3814 | { |
|
|
3815 | /* TODO: check .head */ |
|
|
3816 | sigaddset (&sigfd_set, w->signum); |
|
|
3817 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3818 | |
|
|
3819 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3820 | } |
|
|
3821 | #endif |
2514 | |
3822 | |
2515 | ev_start (EV_A_ (W)w, 1); |
3823 | ev_start (EV_A_ (W)w, 1); |
2516 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3824 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2517 | |
3825 | |
2518 | if (!((WL)w)->next) |
3826 | if (!((WL)w)->next) |
|
|
3827 | # if EV_USE_SIGNALFD |
|
|
3828 | if (sigfd < 0) /*TODO*/ |
|
|
3829 | # endif |
2519 | { |
3830 | { |
2520 | #if _WIN32 |
3831 | # ifdef _WIN32 |
|
|
3832 | evpipe_init (EV_A); |
|
|
3833 | |
2521 | signal (w->signum, ev_sighandler); |
3834 | signal (w->signum, ev_sighandler); |
2522 | #else |
3835 | # else |
2523 | struct sigaction sa; |
3836 | struct sigaction sa; |
|
|
3837 | |
|
|
3838 | evpipe_init (EV_A); |
|
|
3839 | |
2524 | sa.sa_handler = ev_sighandler; |
3840 | sa.sa_handler = ev_sighandler; |
2525 | sigfillset (&sa.sa_mask); |
3841 | sigfillset (&sa.sa_mask); |
2526 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3842 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2527 | sigaction (w->signum, &sa, 0); |
3843 | sigaction (w->signum, &sa, 0); |
|
|
3844 | |
|
|
3845 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3846 | { |
|
|
3847 | sigemptyset (&sa.sa_mask); |
|
|
3848 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3849 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3850 | } |
2528 | #endif |
3851 | #endif |
2529 | } |
3852 | } |
2530 | |
3853 | |
2531 | EV_FREQUENT_CHECK; |
3854 | EV_FREQUENT_CHECK; |
2532 | } |
3855 | } |
2533 | |
3856 | |
2534 | void noinline |
3857 | void noinline |
2535 | ev_signal_stop (EV_P_ ev_signal *w) |
3858 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2536 | { |
3859 | { |
2537 | clear_pending (EV_A_ (W)w); |
3860 | clear_pending (EV_A_ (W)w); |
2538 | if (expect_false (!ev_is_active (w))) |
3861 | if (expect_false (!ev_is_active (w))) |
2539 | return; |
3862 | return; |
2540 | |
3863 | |
… | |
… | |
2542 | |
3865 | |
2543 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3866 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2544 | ev_stop (EV_A_ (W)w); |
3867 | ev_stop (EV_A_ (W)w); |
2545 | |
3868 | |
2546 | if (!signals [w->signum - 1].head) |
3869 | if (!signals [w->signum - 1].head) |
|
|
3870 | { |
|
|
3871 | #if EV_MULTIPLICITY |
|
|
3872 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3873 | #endif |
|
|
3874 | #if EV_USE_SIGNALFD |
|
|
3875 | if (sigfd >= 0) |
|
|
3876 | { |
|
|
3877 | sigset_t ss; |
|
|
3878 | |
|
|
3879 | sigemptyset (&ss); |
|
|
3880 | sigaddset (&ss, w->signum); |
|
|
3881 | sigdelset (&sigfd_set, w->signum); |
|
|
3882 | |
|
|
3883 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3884 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3885 | } |
|
|
3886 | else |
|
|
3887 | #endif |
2547 | signal (w->signum, SIG_DFL); |
3888 | signal (w->signum, SIG_DFL); |
|
|
3889 | } |
2548 | |
3890 | |
2549 | EV_FREQUENT_CHECK; |
3891 | EV_FREQUENT_CHECK; |
2550 | } |
3892 | } |
|
|
3893 | |
|
|
3894 | #endif |
|
|
3895 | |
|
|
3896 | #if EV_CHILD_ENABLE |
2551 | |
3897 | |
2552 | void |
3898 | void |
2553 | ev_child_start (EV_P_ ev_child *w) |
3899 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2554 | { |
3900 | { |
2555 | #if EV_MULTIPLICITY |
3901 | #if EV_MULTIPLICITY |
2556 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3902 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2557 | #endif |
3903 | #endif |
2558 | if (expect_false (ev_is_active (w))) |
3904 | if (expect_false (ev_is_active (w))) |
2559 | return; |
3905 | return; |
2560 | |
3906 | |
2561 | EV_FREQUENT_CHECK; |
3907 | EV_FREQUENT_CHECK; |
2562 | |
3908 | |
2563 | ev_start (EV_A_ (W)w, 1); |
3909 | ev_start (EV_A_ (W)w, 1); |
2564 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3910 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2565 | |
3911 | |
2566 | EV_FREQUENT_CHECK; |
3912 | EV_FREQUENT_CHECK; |
2567 | } |
3913 | } |
2568 | |
3914 | |
2569 | void |
3915 | void |
2570 | ev_child_stop (EV_P_ ev_child *w) |
3916 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2571 | { |
3917 | { |
2572 | clear_pending (EV_A_ (W)w); |
3918 | clear_pending (EV_A_ (W)w); |
2573 | if (expect_false (!ev_is_active (w))) |
3919 | if (expect_false (!ev_is_active (w))) |
2574 | return; |
3920 | return; |
2575 | |
3921 | |
2576 | EV_FREQUENT_CHECK; |
3922 | EV_FREQUENT_CHECK; |
2577 | |
3923 | |
2578 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3924 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2579 | ev_stop (EV_A_ (W)w); |
3925 | ev_stop (EV_A_ (W)w); |
2580 | |
3926 | |
2581 | EV_FREQUENT_CHECK; |
3927 | EV_FREQUENT_CHECK; |
2582 | } |
3928 | } |
|
|
3929 | |
|
|
3930 | #endif |
2583 | |
3931 | |
2584 | #if EV_STAT_ENABLE |
3932 | #if EV_STAT_ENABLE |
2585 | |
3933 | |
2586 | # ifdef _WIN32 |
3934 | # ifdef _WIN32 |
2587 | # undef lstat |
3935 | # undef lstat |
… | |
… | |
2593 | #define MIN_STAT_INTERVAL 0.1074891 |
3941 | #define MIN_STAT_INTERVAL 0.1074891 |
2594 | |
3942 | |
2595 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3943 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2596 | |
3944 | |
2597 | #if EV_USE_INOTIFY |
3945 | #if EV_USE_INOTIFY |
2598 | # define EV_INOTIFY_BUFSIZE 8192 |
3946 | |
|
|
3947 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3948 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2599 | |
3949 | |
2600 | static void noinline |
3950 | static void noinline |
2601 | infy_add (EV_P_ ev_stat *w) |
3951 | infy_add (EV_P_ ev_stat *w) |
2602 | { |
3952 | { |
2603 | 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); |
3953 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3954 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3955 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3956 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2604 | |
3957 | |
2605 | if (w->wd < 0) |
3958 | if (w->wd >= 0) |
|
|
3959 | { |
|
|
3960 | struct statfs sfs; |
|
|
3961 | |
|
|
3962 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3963 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3964 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3965 | |
|
|
3966 | if (!fs_2625) |
|
|
3967 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3968 | else if (!statfs (w->path, &sfs) |
|
|
3969 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3970 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3971 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
3972 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3973 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3974 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3975 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
3976 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3977 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
3978 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3979 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
3980 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3981 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3982 | else |
|
|
3983 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2606 | { |
3984 | } |
|
|
3985 | else |
|
|
3986 | { |
|
|
3987 | /* can't use inotify, continue to stat */ |
2607 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3988 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2608 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2609 | |
3989 | |
2610 | /* monitor some parent directory for speedup hints */ |
3990 | /* if path is not there, monitor some parent directory for speedup hints */ |
2611 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3991 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2612 | /* but an efficiency issue only */ |
3992 | /* but an efficiency issue only */ |
2613 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3993 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2614 | { |
3994 | { |
2615 | char path [4096]; |
3995 | char path [4096]; |
… | |
… | |
2625 | if (!pend || pend == path) |
4005 | if (!pend || pend == path) |
2626 | break; |
4006 | break; |
2627 | |
4007 | |
2628 | *pend = 0; |
4008 | *pend = 0; |
2629 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4009 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2630 | } |
4010 | } |
2631 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4011 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2632 | } |
4012 | } |
2633 | } |
4013 | } |
2634 | |
4014 | |
2635 | if (w->wd >= 0) |
4015 | if (w->wd >= 0) |
2636 | { |
|
|
2637 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4016 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2638 | |
4017 | |
2639 | /* now local changes will be tracked by inotify, but remote changes won't */ |
4018 | /* now re-arm timer, if required */ |
2640 | /* unless the filesystem it known to be local, we therefore still poll */ |
4019 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2641 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2642 | struct statfs sfs; |
|
|
2643 | |
|
|
2644 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2645 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2646 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2647 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2648 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2649 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2650 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2651 | return; |
|
|
2652 | |
|
|
2653 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2654 | ev_timer_again (EV_A_ &w->timer); |
4020 | ev_timer_again (EV_A_ &w->timer); |
2655 | } |
4021 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2656 | } |
4022 | } |
2657 | |
4023 | |
2658 | static void noinline |
4024 | static void noinline |
2659 | infy_del (EV_P_ ev_stat *w) |
4025 | infy_del (EV_P_ ev_stat *w) |
2660 | { |
4026 | { |
… | |
… | |
2663 | |
4029 | |
2664 | if (wd < 0) |
4030 | if (wd < 0) |
2665 | return; |
4031 | return; |
2666 | |
4032 | |
2667 | w->wd = -2; |
4033 | w->wd = -2; |
2668 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4034 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2669 | wlist_del (&fs_hash [slot].head, (WL)w); |
4035 | wlist_del (&fs_hash [slot].head, (WL)w); |
2670 | |
4036 | |
2671 | /* remove this watcher, if others are watching it, they will rearm */ |
4037 | /* remove this watcher, if others are watching it, they will rearm */ |
2672 | inotify_rm_watch (fs_fd, wd); |
4038 | inotify_rm_watch (fs_fd, wd); |
2673 | } |
4039 | } |
… | |
… | |
2675 | static void noinline |
4041 | static void noinline |
2676 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4042 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2677 | { |
4043 | { |
2678 | if (slot < 0) |
4044 | if (slot < 0) |
2679 | /* overflow, need to check for all hash slots */ |
4045 | /* overflow, need to check for all hash slots */ |
2680 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4046 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2681 | infy_wd (EV_A_ slot, wd, ev); |
4047 | infy_wd (EV_A_ slot, wd, ev); |
2682 | else |
4048 | else |
2683 | { |
4049 | { |
2684 | WL w_; |
4050 | WL w_; |
2685 | |
4051 | |
2686 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4052 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2687 | { |
4053 | { |
2688 | ev_stat *w = (ev_stat *)w_; |
4054 | ev_stat *w = (ev_stat *)w_; |
2689 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4055 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2690 | |
4056 | |
2691 | if (w->wd == wd || wd == -1) |
4057 | if (w->wd == wd || wd == -1) |
2692 | { |
4058 | { |
2693 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4059 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2694 | { |
4060 | { |
2695 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4061 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2696 | w->wd = -1; |
4062 | w->wd = -1; |
2697 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4063 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2698 | } |
4064 | } |
2699 | |
4065 | |
2700 | stat_timer_cb (EV_A_ &w->timer, 0); |
4066 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2705 | |
4071 | |
2706 | static void |
4072 | static void |
2707 | infy_cb (EV_P_ ev_io *w, int revents) |
4073 | infy_cb (EV_P_ ev_io *w, int revents) |
2708 | { |
4074 | { |
2709 | char buf [EV_INOTIFY_BUFSIZE]; |
4075 | char buf [EV_INOTIFY_BUFSIZE]; |
2710 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2711 | int ofs; |
4076 | int ofs; |
2712 | int len = read (fs_fd, buf, sizeof (buf)); |
4077 | int len = read (fs_fd, buf, sizeof (buf)); |
2713 | |
4078 | |
2714 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4079 | for (ofs = 0; ofs < len; ) |
|
|
4080 | { |
|
|
4081 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2715 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4082 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4083 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4084 | } |
2716 | } |
4085 | } |
2717 | |
4086 | |
2718 | inline_size void |
4087 | inline_size void ecb_cold |
2719 | check_2625 (EV_P) |
4088 | ev_check_2625 (EV_P) |
2720 | { |
4089 | { |
2721 | /* kernels < 2.6.25 are borked |
4090 | /* kernels < 2.6.25 are borked |
2722 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4091 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2723 | */ |
4092 | */ |
2724 | struct utsname buf; |
4093 | if (ev_linux_version () < 0x020619) |
2725 | int major, minor, micro; |
|
|
2726 | |
|
|
2727 | if (uname (&buf)) |
|
|
2728 | return; |
4094 | return; |
2729 | |
4095 | |
2730 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2731 | return; |
|
|
2732 | |
|
|
2733 | if (major < 2 |
|
|
2734 | || (major == 2 && minor < 6) |
|
|
2735 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2736 | return; |
|
|
2737 | |
|
|
2738 | fs_2625 = 1; |
4096 | fs_2625 = 1; |
|
|
4097 | } |
|
|
4098 | |
|
|
4099 | inline_size int |
|
|
4100 | infy_newfd (void) |
|
|
4101 | { |
|
|
4102 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4103 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4104 | if (fd >= 0) |
|
|
4105 | return fd; |
|
|
4106 | #endif |
|
|
4107 | return inotify_init (); |
2739 | } |
4108 | } |
2740 | |
4109 | |
2741 | inline_size void |
4110 | inline_size void |
2742 | infy_init (EV_P) |
4111 | infy_init (EV_P) |
2743 | { |
4112 | { |
2744 | if (fs_fd != -2) |
4113 | if (fs_fd != -2) |
2745 | return; |
4114 | return; |
2746 | |
4115 | |
2747 | fs_fd = -1; |
4116 | fs_fd = -1; |
2748 | |
4117 | |
2749 | check_2625 (EV_A); |
4118 | ev_check_2625 (EV_A); |
2750 | |
4119 | |
2751 | fs_fd = inotify_init (); |
4120 | fs_fd = infy_newfd (); |
2752 | |
4121 | |
2753 | if (fs_fd >= 0) |
4122 | if (fs_fd >= 0) |
2754 | { |
4123 | { |
|
|
4124 | fd_intern (fs_fd); |
2755 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4125 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2756 | ev_set_priority (&fs_w, EV_MAXPRI); |
4126 | ev_set_priority (&fs_w, EV_MAXPRI); |
2757 | ev_io_start (EV_A_ &fs_w); |
4127 | ev_io_start (EV_A_ &fs_w); |
|
|
4128 | ev_unref (EV_A); |
2758 | } |
4129 | } |
2759 | } |
4130 | } |
2760 | |
4131 | |
2761 | inline_size void |
4132 | inline_size void |
2762 | infy_fork (EV_P) |
4133 | infy_fork (EV_P) |
… | |
… | |
2764 | int slot; |
4135 | int slot; |
2765 | |
4136 | |
2766 | if (fs_fd < 0) |
4137 | if (fs_fd < 0) |
2767 | return; |
4138 | return; |
2768 | |
4139 | |
|
|
4140 | ev_ref (EV_A); |
|
|
4141 | ev_io_stop (EV_A_ &fs_w); |
2769 | close (fs_fd); |
4142 | close (fs_fd); |
2770 | fs_fd = inotify_init (); |
4143 | fs_fd = infy_newfd (); |
2771 | |
4144 | |
|
|
4145 | if (fs_fd >= 0) |
|
|
4146 | { |
|
|
4147 | fd_intern (fs_fd); |
|
|
4148 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4149 | ev_io_start (EV_A_ &fs_w); |
|
|
4150 | ev_unref (EV_A); |
|
|
4151 | } |
|
|
4152 | |
2772 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4153 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2773 | { |
4154 | { |
2774 | WL w_ = fs_hash [slot].head; |
4155 | WL w_ = fs_hash [slot].head; |
2775 | fs_hash [slot].head = 0; |
4156 | fs_hash [slot].head = 0; |
2776 | |
4157 | |
2777 | while (w_) |
4158 | while (w_) |
… | |
… | |
2782 | w->wd = -1; |
4163 | w->wd = -1; |
2783 | |
4164 | |
2784 | if (fs_fd >= 0) |
4165 | if (fs_fd >= 0) |
2785 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4166 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2786 | else |
4167 | else |
|
|
4168 | { |
|
|
4169 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4170 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2787 | ev_timer_again (EV_A_ &w->timer); |
4171 | ev_timer_again (EV_A_ &w->timer); |
|
|
4172 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4173 | } |
2788 | } |
4174 | } |
2789 | } |
4175 | } |
2790 | } |
4176 | } |
2791 | |
4177 | |
2792 | #endif |
4178 | #endif |
… | |
… | |
2796 | #else |
4182 | #else |
2797 | # define EV_LSTAT(p,b) lstat (p, b) |
4183 | # define EV_LSTAT(p,b) lstat (p, b) |
2798 | #endif |
4184 | #endif |
2799 | |
4185 | |
2800 | void |
4186 | void |
2801 | ev_stat_stat (EV_P_ ev_stat *w) |
4187 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
2802 | { |
4188 | { |
2803 | if (lstat (w->path, &w->attr) < 0) |
4189 | if (lstat (w->path, &w->attr) < 0) |
2804 | w->attr.st_nlink = 0; |
4190 | w->attr.st_nlink = 0; |
2805 | else if (!w->attr.st_nlink) |
4191 | else if (!w->attr.st_nlink) |
2806 | w->attr.st_nlink = 1; |
4192 | w->attr.st_nlink = 1; |
… | |
… | |
2809 | static void noinline |
4195 | static void noinline |
2810 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4196 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2811 | { |
4197 | { |
2812 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4198 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2813 | |
4199 | |
2814 | /* we copy this here each the time so that */ |
4200 | ev_statdata prev = w->attr; |
2815 | /* prev has the old value when the callback gets invoked */ |
|
|
2816 | w->prev = w->attr; |
|
|
2817 | ev_stat_stat (EV_A_ w); |
4201 | ev_stat_stat (EV_A_ w); |
2818 | |
4202 | |
2819 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4203 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2820 | if ( |
4204 | if ( |
2821 | w->prev.st_dev != w->attr.st_dev |
4205 | prev.st_dev != w->attr.st_dev |
2822 | || w->prev.st_ino != w->attr.st_ino |
4206 | || prev.st_ino != w->attr.st_ino |
2823 | || w->prev.st_mode != w->attr.st_mode |
4207 | || prev.st_mode != w->attr.st_mode |
2824 | || w->prev.st_nlink != w->attr.st_nlink |
4208 | || prev.st_nlink != w->attr.st_nlink |
2825 | || w->prev.st_uid != w->attr.st_uid |
4209 | || prev.st_uid != w->attr.st_uid |
2826 | || w->prev.st_gid != w->attr.st_gid |
4210 | || prev.st_gid != w->attr.st_gid |
2827 | || w->prev.st_rdev != w->attr.st_rdev |
4211 | || prev.st_rdev != w->attr.st_rdev |
2828 | || w->prev.st_size != w->attr.st_size |
4212 | || prev.st_size != w->attr.st_size |
2829 | || w->prev.st_atime != w->attr.st_atime |
4213 | || prev.st_atime != w->attr.st_atime |
2830 | || w->prev.st_mtime != w->attr.st_mtime |
4214 | || prev.st_mtime != w->attr.st_mtime |
2831 | || w->prev.st_ctime != w->attr.st_ctime |
4215 | || prev.st_ctime != w->attr.st_ctime |
2832 | ) { |
4216 | ) { |
|
|
4217 | /* we only update w->prev on actual differences */ |
|
|
4218 | /* in case we test more often than invoke the callback, */ |
|
|
4219 | /* to ensure that prev is always different to attr */ |
|
|
4220 | w->prev = prev; |
|
|
4221 | |
2833 | #if EV_USE_INOTIFY |
4222 | #if EV_USE_INOTIFY |
2834 | if (fs_fd >= 0) |
4223 | if (fs_fd >= 0) |
2835 | { |
4224 | { |
2836 | infy_del (EV_A_ w); |
4225 | infy_del (EV_A_ w); |
2837 | infy_add (EV_A_ w); |
4226 | infy_add (EV_A_ w); |
… | |
… | |
2842 | ev_feed_event (EV_A_ w, EV_STAT); |
4231 | ev_feed_event (EV_A_ w, EV_STAT); |
2843 | } |
4232 | } |
2844 | } |
4233 | } |
2845 | |
4234 | |
2846 | void |
4235 | void |
2847 | ev_stat_start (EV_P_ ev_stat *w) |
4236 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
2848 | { |
4237 | { |
2849 | if (expect_false (ev_is_active (w))) |
4238 | if (expect_false (ev_is_active (w))) |
2850 | return; |
4239 | return; |
2851 | |
4240 | |
2852 | ev_stat_stat (EV_A_ w); |
4241 | ev_stat_stat (EV_A_ w); |
… | |
… | |
2862 | |
4251 | |
2863 | if (fs_fd >= 0) |
4252 | if (fs_fd >= 0) |
2864 | infy_add (EV_A_ w); |
4253 | infy_add (EV_A_ w); |
2865 | else |
4254 | else |
2866 | #endif |
4255 | #endif |
|
|
4256 | { |
2867 | ev_timer_again (EV_A_ &w->timer); |
4257 | ev_timer_again (EV_A_ &w->timer); |
|
|
4258 | ev_unref (EV_A); |
|
|
4259 | } |
2868 | |
4260 | |
2869 | ev_start (EV_A_ (W)w, 1); |
4261 | ev_start (EV_A_ (W)w, 1); |
2870 | |
4262 | |
2871 | EV_FREQUENT_CHECK; |
4263 | EV_FREQUENT_CHECK; |
2872 | } |
4264 | } |
2873 | |
4265 | |
2874 | void |
4266 | void |
2875 | ev_stat_stop (EV_P_ ev_stat *w) |
4267 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
2876 | { |
4268 | { |
2877 | clear_pending (EV_A_ (W)w); |
4269 | clear_pending (EV_A_ (W)w); |
2878 | if (expect_false (!ev_is_active (w))) |
4270 | if (expect_false (!ev_is_active (w))) |
2879 | return; |
4271 | return; |
2880 | |
4272 | |
2881 | EV_FREQUENT_CHECK; |
4273 | EV_FREQUENT_CHECK; |
2882 | |
4274 | |
2883 | #if EV_USE_INOTIFY |
4275 | #if EV_USE_INOTIFY |
2884 | infy_del (EV_A_ w); |
4276 | infy_del (EV_A_ w); |
2885 | #endif |
4277 | #endif |
|
|
4278 | |
|
|
4279 | if (ev_is_active (&w->timer)) |
|
|
4280 | { |
|
|
4281 | ev_ref (EV_A); |
2886 | ev_timer_stop (EV_A_ &w->timer); |
4282 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4283 | } |
2887 | |
4284 | |
2888 | ev_stop (EV_A_ (W)w); |
4285 | ev_stop (EV_A_ (W)w); |
2889 | |
4286 | |
2890 | EV_FREQUENT_CHECK; |
4287 | EV_FREQUENT_CHECK; |
2891 | } |
4288 | } |
2892 | #endif |
4289 | #endif |
2893 | |
4290 | |
2894 | #if EV_IDLE_ENABLE |
4291 | #if EV_IDLE_ENABLE |
2895 | void |
4292 | void |
2896 | ev_idle_start (EV_P_ ev_idle *w) |
4293 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
2897 | { |
4294 | { |
2898 | if (expect_false (ev_is_active (w))) |
4295 | if (expect_false (ev_is_active (w))) |
2899 | return; |
4296 | return; |
2900 | |
4297 | |
2901 | pri_adjust (EV_A_ (W)w); |
4298 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
2914 | |
4311 | |
2915 | EV_FREQUENT_CHECK; |
4312 | EV_FREQUENT_CHECK; |
2916 | } |
4313 | } |
2917 | |
4314 | |
2918 | void |
4315 | void |
2919 | ev_idle_stop (EV_P_ ev_idle *w) |
4316 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
2920 | { |
4317 | { |
2921 | clear_pending (EV_A_ (W)w); |
4318 | clear_pending (EV_A_ (W)w); |
2922 | if (expect_false (!ev_is_active (w))) |
4319 | if (expect_false (!ev_is_active (w))) |
2923 | return; |
4320 | return; |
2924 | |
4321 | |
… | |
… | |
2936 | |
4333 | |
2937 | EV_FREQUENT_CHECK; |
4334 | EV_FREQUENT_CHECK; |
2938 | } |
4335 | } |
2939 | #endif |
4336 | #endif |
2940 | |
4337 | |
|
|
4338 | #if EV_PREPARE_ENABLE |
2941 | void |
4339 | void |
2942 | ev_prepare_start (EV_P_ ev_prepare *w) |
4340 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
2943 | { |
4341 | { |
2944 | if (expect_false (ev_is_active (w))) |
4342 | if (expect_false (ev_is_active (w))) |
2945 | return; |
4343 | return; |
2946 | |
4344 | |
2947 | EV_FREQUENT_CHECK; |
4345 | EV_FREQUENT_CHECK; |
… | |
… | |
2952 | |
4350 | |
2953 | EV_FREQUENT_CHECK; |
4351 | EV_FREQUENT_CHECK; |
2954 | } |
4352 | } |
2955 | |
4353 | |
2956 | void |
4354 | void |
2957 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4355 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
2958 | { |
4356 | { |
2959 | clear_pending (EV_A_ (W)w); |
4357 | clear_pending (EV_A_ (W)w); |
2960 | if (expect_false (!ev_is_active (w))) |
4358 | if (expect_false (!ev_is_active (w))) |
2961 | return; |
4359 | return; |
2962 | |
4360 | |
… | |
… | |
2971 | |
4369 | |
2972 | ev_stop (EV_A_ (W)w); |
4370 | ev_stop (EV_A_ (W)w); |
2973 | |
4371 | |
2974 | EV_FREQUENT_CHECK; |
4372 | EV_FREQUENT_CHECK; |
2975 | } |
4373 | } |
|
|
4374 | #endif |
2976 | |
4375 | |
|
|
4376 | #if EV_CHECK_ENABLE |
2977 | void |
4377 | void |
2978 | ev_check_start (EV_P_ ev_check *w) |
4378 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
2979 | { |
4379 | { |
2980 | if (expect_false (ev_is_active (w))) |
4380 | if (expect_false (ev_is_active (w))) |
2981 | return; |
4381 | return; |
2982 | |
4382 | |
2983 | EV_FREQUENT_CHECK; |
4383 | EV_FREQUENT_CHECK; |
… | |
… | |
2988 | |
4388 | |
2989 | EV_FREQUENT_CHECK; |
4389 | EV_FREQUENT_CHECK; |
2990 | } |
4390 | } |
2991 | |
4391 | |
2992 | void |
4392 | void |
2993 | ev_check_stop (EV_P_ ev_check *w) |
4393 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
2994 | { |
4394 | { |
2995 | clear_pending (EV_A_ (W)w); |
4395 | clear_pending (EV_A_ (W)w); |
2996 | if (expect_false (!ev_is_active (w))) |
4396 | if (expect_false (!ev_is_active (w))) |
2997 | return; |
4397 | return; |
2998 | |
4398 | |
… | |
… | |
3007 | |
4407 | |
3008 | ev_stop (EV_A_ (W)w); |
4408 | ev_stop (EV_A_ (W)w); |
3009 | |
4409 | |
3010 | EV_FREQUENT_CHECK; |
4410 | EV_FREQUENT_CHECK; |
3011 | } |
4411 | } |
|
|
4412 | #endif |
3012 | |
4413 | |
3013 | #if EV_EMBED_ENABLE |
4414 | #if EV_EMBED_ENABLE |
3014 | void noinline |
4415 | void noinline |
3015 | ev_embed_sweep (EV_P_ ev_embed *w) |
4416 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3016 | { |
4417 | { |
3017 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4418 | ev_run (w->other, EVRUN_NOWAIT); |
3018 | } |
4419 | } |
3019 | |
4420 | |
3020 | static void |
4421 | static void |
3021 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4422 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3022 | { |
4423 | { |
3023 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4424 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3024 | |
4425 | |
3025 | if (ev_cb (w)) |
4426 | if (ev_cb (w)) |
3026 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4427 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3027 | else |
4428 | else |
3028 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4429 | ev_run (w->other, EVRUN_NOWAIT); |
3029 | } |
4430 | } |
3030 | |
4431 | |
3031 | static void |
4432 | static void |
3032 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4433 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3033 | { |
4434 | { |
3034 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4435 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3035 | |
4436 | |
3036 | { |
4437 | { |
3037 | struct ev_loop *loop = w->other; |
4438 | EV_P = w->other; |
3038 | |
4439 | |
3039 | while (fdchangecnt) |
4440 | while (fdchangecnt) |
3040 | { |
4441 | { |
3041 | fd_reify (EV_A); |
4442 | fd_reify (EV_A); |
3042 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4443 | ev_run (EV_A_ EVRUN_NOWAIT); |
3043 | } |
4444 | } |
3044 | } |
4445 | } |
3045 | } |
4446 | } |
3046 | |
4447 | |
3047 | static void |
4448 | static void |
… | |
… | |
3050 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4451 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3051 | |
4452 | |
3052 | ev_embed_stop (EV_A_ w); |
4453 | ev_embed_stop (EV_A_ w); |
3053 | |
4454 | |
3054 | { |
4455 | { |
3055 | struct ev_loop *loop = w->other; |
4456 | EV_P = w->other; |
3056 | |
4457 | |
3057 | ev_loop_fork (EV_A); |
4458 | ev_loop_fork (EV_A); |
3058 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4459 | ev_run (EV_A_ EVRUN_NOWAIT); |
3059 | } |
4460 | } |
3060 | |
4461 | |
3061 | ev_embed_start (EV_A_ w); |
4462 | ev_embed_start (EV_A_ w); |
3062 | } |
4463 | } |
3063 | |
4464 | |
… | |
… | |
3068 | ev_idle_stop (EV_A_ idle); |
4469 | ev_idle_stop (EV_A_ idle); |
3069 | } |
4470 | } |
3070 | #endif |
4471 | #endif |
3071 | |
4472 | |
3072 | void |
4473 | void |
3073 | ev_embed_start (EV_P_ ev_embed *w) |
4474 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3074 | { |
4475 | { |
3075 | if (expect_false (ev_is_active (w))) |
4476 | if (expect_false (ev_is_active (w))) |
3076 | return; |
4477 | return; |
3077 | |
4478 | |
3078 | { |
4479 | { |
3079 | struct ev_loop *loop = w->other; |
4480 | EV_P = w->other; |
3080 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4481 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3081 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4482 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3082 | } |
4483 | } |
3083 | |
4484 | |
3084 | EV_FREQUENT_CHECK; |
4485 | EV_FREQUENT_CHECK; |
… | |
… | |
3099 | |
4500 | |
3100 | EV_FREQUENT_CHECK; |
4501 | EV_FREQUENT_CHECK; |
3101 | } |
4502 | } |
3102 | |
4503 | |
3103 | void |
4504 | void |
3104 | ev_embed_stop (EV_P_ ev_embed *w) |
4505 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3105 | { |
4506 | { |
3106 | clear_pending (EV_A_ (W)w); |
4507 | clear_pending (EV_A_ (W)w); |
3107 | if (expect_false (!ev_is_active (w))) |
4508 | if (expect_false (!ev_is_active (w))) |
3108 | return; |
4509 | return; |
3109 | |
4510 | |
… | |
… | |
3111 | |
4512 | |
3112 | ev_io_stop (EV_A_ &w->io); |
4513 | ev_io_stop (EV_A_ &w->io); |
3113 | ev_prepare_stop (EV_A_ &w->prepare); |
4514 | ev_prepare_stop (EV_A_ &w->prepare); |
3114 | ev_fork_stop (EV_A_ &w->fork); |
4515 | ev_fork_stop (EV_A_ &w->fork); |
3115 | |
4516 | |
|
|
4517 | ev_stop (EV_A_ (W)w); |
|
|
4518 | |
3116 | EV_FREQUENT_CHECK; |
4519 | EV_FREQUENT_CHECK; |
3117 | } |
4520 | } |
3118 | #endif |
4521 | #endif |
3119 | |
4522 | |
3120 | #if EV_FORK_ENABLE |
4523 | #if EV_FORK_ENABLE |
3121 | void |
4524 | void |
3122 | ev_fork_start (EV_P_ ev_fork *w) |
4525 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3123 | { |
4526 | { |
3124 | if (expect_false (ev_is_active (w))) |
4527 | if (expect_false (ev_is_active (w))) |
3125 | return; |
4528 | return; |
3126 | |
4529 | |
3127 | EV_FREQUENT_CHECK; |
4530 | EV_FREQUENT_CHECK; |
… | |
… | |
3132 | |
4535 | |
3133 | EV_FREQUENT_CHECK; |
4536 | EV_FREQUENT_CHECK; |
3134 | } |
4537 | } |
3135 | |
4538 | |
3136 | void |
4539 | void |
3137 | ev_fork_stop (EV_P_ ev_fork *w) |
4540 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3138 | { |
4541 | { |
3139 | clear_pending (EV_A_ (W)w); |
4542 | clear_pending (EV_A_ (W)w); |
3140 | if (expect_false (!ev_is_active (w))) |
4543 | if (expect_false (!ev_is_active (w))) |
3141 | return; |
4544 | return; |
3142 | |
4545 | |
… | |
… | |
3153 | |
4556 | |
3154 | EV_FREQUENT_CHECK; |
4557 | EV_FREQUENT_CHECK; |
3155 | } |
4558 | } |
3156 | #endif |
4559 | #endif |
3157 | |
4560 | |
|
|
4561 | #if EV_CLEANUP_ENABLE |
|
|
4562 | void |
|
|
4563 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4564 | { |
|
|
4565 | if (expect_false (ev_is_active (w))) |
|
|
4566 | return; |
|
|
4567 | |
|
|
4568 | EV_FREQUENT_CHECK; |
|
|
4569 | |
|
|
4570 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4571 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4572 | cleanups [cleanupcnt - 1] = w; |
|
|
4573 | |
|
|
4574 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4575 | ev_unref (EV_A); |
|
|
4576 | EV_FREQUENT_CHECK; |
|
|
4577 | } |
|
|
4578 | |
|
|
4579 | void |
|
|
4580 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4581 | { |
|
|
4582 | clear_pending (EV_A_ (W)w); |
|
|
4583 | if (expect_false (!ev_is_active (w))) |
|
|
4584 | return; |
|
|
4585 | |
|
|
4586 | EV_FREQUENT_CHECK; |
|
|
4587 | ev_ref (EV_A); |
|
|
4588 | |
|
|
4589 | { |
|
|
4590 | int active = ev_active (w); |
|
|
4591 | |
|
|
4592 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4593 | ev_active (cleanups [active - 1]) = active; |
|
|
4594 | } |
|
|
4595 | |
|
|
4596 | ev_stop (EV_A_ (W)w); |
|
|
4597 | |
|
|
4598 | EV_FREQUENT_CHECK; |
|
|
4599 | } |
|
|
4600 | #endif |
|
|
4601 | |
3158 | #if EV_ASYNC_ENABLE |
4602 | #if EV_ASYNC_ENABLE |
3159 | void |
4603 | void |
3160 | ev_async_start (EV_P_ ev_async *w) |
4604 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3161 | { |
4605 | { |
3162 | if (expect_false (ev_is_active (w))) |
4606 | if (expect_false (ev_is_active (w))) |
3163 | return; |
4607 | return; |
|
|
4608 | |
|
|
4609 | w->sent = 0; |
3164 | |
4610 | |
3165 | evpipe_init (EV_A); |
4611 | evpipe_init (EV_A); |
3166 | |
4612 | |
3167 | EV_FREQUENT_CHECK; |
4613 | EV_FREQUENT_CHECK; |
3168 | |
4614 | |
… | |
… | |
3172 | |
4618 | |
3173 | EV_FREQUENT_CHECK; |
4619 | EV_FREQUENT_CHECK; |
3174 | } |
4620 | } |
3175 | |
4621 | |
3176 | void |
4622 | void |
3177 | ev_async_stop (EV_P_ ev_async *w) |
4623 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3178 | { |
4624 | { |
3179 | clear_pending (EV_A_ (W)w); |
4625 | clear_pending (EV_A_ (W)w); |
3180 | if (expect_false (!ev_is_active (w))) |
4626 | if (expect_false (!ev_is_active (w))) |
3181 | return; |
4627 | return; |
3182 | |
4628 | |
… | |
… | |
3193 | |
4639 | |
3194 | EV_FREQUENT_CHECK; |
4640 | EV_FREQUENT_CHECK; |
3195 | } |
4641 | } |
3196 | |
4642 | |
3197 | void |
4643 | void |
3198 | ev_async_send (EV_P_ ev_async *w) |
4644 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3199 | { |
4645 | { |
3200 | w->sent = 1; |
4646 | w->sent = 1; |
3201 | evpipe_write (EV_A_ &gotasync); |
4647 | evpipe_write (EV_A_ &async_pending); |
3202 | } |
4648 | } |
3203 | #endif |
4649 | #endif |
3204 | |
4650 | |
3205 | /*****************************************************************************/ |
4651 | /*****************************************************************************/ |
3206 | |
4652 | |
… | |
… | |
3240 | |
4686 | |
3241 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4687 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3242 | } |
4688 | } |
3243 | |
4689 | |
3244 | void |
4690 | void |
3245 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4691 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3246 | { |
4692 | { |
3247 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4693 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3248 | |
4694 | |
3249 | if (expect_false (!once)) |
4695 | if (expect_false (!once)) |
3250 | { |
4696 | { |
3251 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4697 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3252 | return; |
4698 | return; |
3253 | } |
4699 | } |
3254 | |
4700 | |
3255 | once->cb = cb; |
4701 | once->cb = cb; |
3256 | once->arg = arg; |
4702 | once->arg = arg; |
… | |
… | |
3271 | } |
4717 | } |
3272 | |
4718 | |
3273 | /*****************************************************************************/ |
4719 | /*****************************************************************************/ |
3274 | |
4720 | |
3275 | #if EV_WALK_ENABLE |
4721 | #if EV_WALK_ENABLE |
3276 | void |
4722 | void ecb_cold |
3277 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4723 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3278 | { |
4724 | { |
3279 | int i, j; |
4725 | int i, j; |
3280 | ev_watcher_list *wl, *wn; |
4726 | ev_watcher_list *wl, *wn; |
3281 | |
4727 | |
3282 | if (types & (EV_IO | EV_EMBED)) |
4728 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3325 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4771 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3326 | #endif |
4772 | #endif |
3327 | |
4773 | |
3328 | #if EV_IDLE_ENABLE |
4774 | #if EV_IDLE_ENABLE |
3329 | if (types & EV_IDLE) |
4775 | if (types & EV_IDLE) |
3330 | for (j = NUMPRI; i--; ) |
4776 | for (j = NUMPRI; j--; ) |
3331 | for (i = idlecnt [j]; i--; ) |
4777 | for (i = idlecnt [j]; i--; ) |
3332 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4778 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3333 | #endif |
4779 | #endif |
3334 | |
4780 | |
3335 | #if EV_FORK_ENABLE |
4781 | #if EV_FORK_ENABLE |
… | |
… | |
3343 | if (types & EV_ASYNC) |
4789 | if (types & EV_ASYNC) |
3344 | for (i = asynccnt; i--; ) |
4790 | for (i = asynccnt; i--; ) |
3345 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
4791 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3346 | #endif |
4792 | #endif |
3347 | |
4793 | |
|
|
4794 | #if EV_PREPARE_ENABLE |
3348 | if (types & EV_PREPARE) |
4795 | if (types & EV_PREPARE) |
3349 | for (i = preparecnt; i--; ) |
4796 | for (i = preparecnt; i--; ) |
3350 | #if EV_EMBED_ENABLE |
4797 | # if EV_EMBED_ENABLE |
3351 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
4798 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3352 | #endif |
4799 | # endif |
3353 | cb (EV_A_ EV_PREPARE, prepares [i]); |
4800 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4801 | #endif |
3354 | |
4802 | |
|
|
4803 | #if EV_CHECK_ENABLE |
3355 | if (types & EV_CHECK) |
4804 | if (types & EV_CHECK) |
3356 | for (i = checkcnt; i--; ) |
4805 | for (i = checkcnt; i--; ) |
3357 | cb (EV_A_ EV_CHECK, checks [i]); |
4806 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4807 | #endif |
3358 | |
4808 | |
|
|
4809 | #if EV_SIGNAL_ENABLE |
3359 | if (types & EV_SIGNAL) |
4810 | if (types & EV_SIGNAL) |
3360 | for (i = 0; i < signalmax; ++i) |
4811 | for (i = 0; i < EV_NSIG - 1; ++i) |
3361 | for (wl = signals [i].head; wl; ) |
4812 | for (wl = signals [i].head; wl; ) |
3362 | { |
4813 | { |
3363 | wn = wl->next; |
4814 | wn = wl->next; |
3364 | cb (EV_A_ EV_SIGNAL, wl); |
4815 | cb (EV_A_ EV_SIGNAL, wl); |
3365 | wl = wn; |
4816 | wl = wn; |
3366 | } |
4817 | } |
|
|
4818 | #endif |
3367 | |
4819 | |
|
|
4820 | #if EV_CHILD_ENABLE |
3368 | if (types & EV_CHILD) |
4821 | if (types & EV_CHILD) |
3369 | for (i = EV_PID_HASHSIZE; i--; ) |
4822 | for (i = (EV_PID_HASHSIZE); i--; ) |
3370 | for (wl = childs [i]; wl; ) |
4823 | for (wl = childs [i]; wl; ) |
3371 | { |
4824 | { |
3372 | wn = wl->next; |
4825 | wn = wl->next; |
3373 | cb (EV_A_ EV_CHILD, wl); |
4826 | cb (EV_A_ EV_CHILD, wl); |
3374 | wl = wn; |
4827 | wl = wn; |
3375 | } |
4828 | } |
|
|
4829 | #endif |
3376 | /* EV_STAT 0x00001000 /* stat data changed */ |
4830 | /* EV_STAT 0x00001000 /* stat data changed */ |
3377 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
4831 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3378 | } |
4832 | } |
3379 | #endif |
4833 | #endif |
3380 | |
4834 | |
3381 | #if EV_MULTIPLICITY |
4835 | #if EV_MULTIPLICITY |
3382 | #include "ev_wrap.h" |
4836 | #include "ev_wrap.h" |
3383 | #endif |
4837 | #endif |
3384 | |
4838 | |
3385 | #ifdef __cplusplus |
|
|
3386 | } |
|
|
3387 | #endif |
|
|
3388 | |
|
|