1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
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 */ |
182 | |
223 | |
|
|
224 | /* try to deduce the maximum number of signals on this platform */ |
|
|
225 | #if defined EV_NSIG |
|
|
226 | /* use what's provided */ |
|
|
227 | #elif defined NSIG |
|
|
228 | # define EV_NSIG (NSIG) |
|
|
229 | #elif defined _NSIG |
|
|
230 | # define EV_NSIG (_NSIG) |
|
|
231 | #elif defined SIGMAX |
|
|
232 | # define EV_NSIG (SIGMAX+1) |
|
|
233 | #elif defined SIG_MAX |
|
|
234 | # define EV_NSIG (SIG_MAX+1) |
|
|
235 | #elif defined _SIG_MAX |
|
|
236 | # define EV_NSIG (_SIG_MAX+1) |
|
|
237 | #elif defined MAXSIG |
|
|
238 | # define EV_NSIG (MAXSIG+1) |
|
|
239 | #elif defined MAX_SIG |
|
|
240 | # define EV_NSIG (MAX_SIG+1) |
|
|
241 | #elif defined SIGARRAYSIZE |
|
|
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
243 | #elif defined _sys_nsig |
|
|
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
245 | #else |
|
|
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
|
|
247 | #endif |
|
|
248 | |
|
|
249 | #ifndef EV_USE_FLOOR |
|
|
250 | # define EV_USE_FLOOR 0 |
|
|
251 | #endif |
|
|
252 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
186 | # else |
256 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
188 | # endif |
258 | # endif |
189 | #endif |
259 | #endif |
190 | |
260 | |
191 | #ifndef EV_USE_MONOTONIC |
261 | #ifndef EV_USE_MONOTONIC |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
193 | # define EV_USE_MONOTONIC 1 |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
194 | # else |
264 | # else |
195 | # define EV_USE_MONOTONIC 0 |
265 | # define EV_USE_MONOTONIC 0 |
196 | # endif |
266 | # endif |
197 | #endif |
267 | #endif |
198 | |
268 | |
… | |
… | |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
270 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
201 | #endif |
271 | #endif |
202 | |
272 | |
203 | #ifndef EV_USE_NANOSLEEP |
273 | #ifndef EV_USE_NANOSLEEP |
204 | # if _POSIX_C_SOURCE >= 199309L |
274 | # if _POSIX_C_SOURCE >= 199309L |
205 | # define EV_USE_NANOSLEEP 1 |
275 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
206 | # else |
276 | # else |
207 | # define EV_USE_NANOSLEEP 0 |
277 | # define EV_USE_NANOSLEEP 0 |
208 | # endif |
278 | # endif |
209 | #endif |
279 | #endif |
210 | |
280 | |
211 | #ifndef EV_USE_SELECT |
281 | #ifndef EV_USE_SELECT |
212 | # define EV_USE_SELECT 1 |
282 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
213 | #endif |
283 | #endif |
214 | |
284 | |
215 | #ifndef EV_USE_POLL |
285 | #ifndef EV_USE_POLL |
216 | # ifdef _WIN32 |
286 | # ifdef _WIN32 |
217 | # define EV_USE_POLL 0 |
287 | # define EV_USE_POLL 0 |
218 | # else |
288 | # else |
219 | # define EV_USE_POLL 1 |
289 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
220 | # endif |
290 | # endif |
221 | #endif |
291 | #endif |
222 | |
292 | |
223 | #ifndef EV_USE_EPOLL |
293 | #ifndef EV_USE_EPOLL |
224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
225 | # define EV_USE_EPOLL 1 |
295 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
226 | # else |
296 | # else |
227 | # define EV_USE_EPOLL 0 |
297 | # define EV_USE_EPOLL 0 |
228 | # endif |
298 | # endif |
229 | #endif |
299 | #endif |
230 | |
300 | |
… | |
… | |
236 | # define EV_USE_PORT 0 |
306 | # define EV_USE_PORT 0 |
237 | #endif |
307 | #endif |
238 | |
308 | |
239 | #ifndef EV_USE_INOTIFY |
309 | #ifndef EV_USE_INOTIFY |
240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
241 | # define EV_USE_INOTIFY 1 |
311 | # define EV_USE_INOTIFY EV_FEATURE_OS |
242 | # else |
312 | # else |
243 | # define EV_USE_INOTIFY 0 |
313 | # define EV_USE_INOTIFY 0 |
244 | # endif |
314 | # endif |
245 | #endif |
315 | #endif |
246 | |
316 | |
247 | #ifndef EV_PID_HASHSIZE |
317 | #ifndef EV_PID_HASHSIZE |
248 | # if EV_MINIMAL |
318 | # 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 |
319 | #endif |
254 | |
320 | |
255 | #ifndef EV_INOTIFY_HASHSIZE |
321 | #ifndef EV_INOTIFY_HASHSIZE |
256 | # if EV_MINIMAL |
322 | # 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 |
323 | #endif |
262 | |
324 | |
263 | #ifndef EV_USE_EVENTFD |
325 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
326 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
327 | # define EV_USE_EVENTFD EV_FEATURE_OS |
266 | # else |
328 | # else |
267 | # define EV_USE_EVENTFD 0 |
329 | # define EV_USE_EVENTFD 0 |
|
|
330 | # endif |
|
|
331 | #endif |
|
|
332 | |
|
|
333 | #ifndef EV_USE_SIGNALFD |
|
|
334 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
335 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
336 | # else |
|
|
337 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
338 | # endif |
269 | #endif |
339 | #endif |
270 | |
340 | |
271 | #if 0 /* debugging */ |
341 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
342 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
343 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
344 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
345 | #endif |
276 | |
346 | |
277 | #ifndef EV_VERIFY |
347 | #ifndef EV_VERIFY |
278 | # define EV_VERIFY !EV_MINIMAL |
348 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
279 | #endif |
349 | #endif |
280 | |
350 | |
281 | #ifndef EV_USE_4HEAP |
351 | #ifndef EV_USE_4HEAP |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
352 | # define EV_USE_4HEAP EV_FEATURE_DATA |
283 | #endif |
353 | #endif |
284 | |
354 | |
285 | #ifndef EV_HEAP_CACHE_AT |
355 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
357 | #endif |
|
|
358 | |
|
|
359 | #ifdef ANDROID |
|
|
360 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
361 | # undef EV_USE_SELECT |
|
|
362 | # define EV_USE_SELECT 0 |
|
|
363 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
364 | # undef EV_USE_CLOCK_SYSCALL |
|
|
365 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
366 | #endif |
|
|
367 | |
|
|
368 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
369 | #ifdef _AIX |
|
|
370 | /* AIX has a completely broken poll.h header */ |
|
|
371 | # undef EV_USE_POLL |
|
|
372 | # define EV_USE_POLL 0 |
287 | #endif |
373 | #endif |
288 | |
374 | |
289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
375 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
290 | /* which makes programs even slower. might work on other unices, too. */ |
376 | /* which makes programs even slower. might work on other unices, too. */ |
291 | #if EV_USE_CLOCK_SYSCALL |
377 | #if EV_USE_CLOCK_SYSCALL |
292 | # include <syscall.h> |
378 | # include <sys/syscall.h> |
293 | # ifdef SYS_clock_gettime |
379 | # ifdef SYS_clock_gettime |
294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
295 | # undef EV_USE_MONOTONIC |
381 | # undef EV_USE_MONOTONIC |
296 | # define EV_USE_MONOTONIC 1 |
382 | # define EV_USE_MONOTONIC 1 |
297 | # else |
383 | # else |
… | |
… | |
316 | # undef EV_USE_INOTIFY |
402 | # undef EV_USE_INOTIFY |
317 | # define EV_USE_INOTIFY 0 |
403 | # define EV_USE_INOTIFY 0 |
318 | #endif |
404 | #endif |
319 | |
405 | |
320 | #if !EV_USE_NANOSLEEP |
406 | #if !EV_USE_NANOSLEEP |
321 | # ifndef _WIN32 |
407 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
408 | # if !defined _WIN32 && !defined __hpux |
322 | # include <sys/select.h> |
409 | # include <sys/select.h> |
323 | # endif |
410 | # endif |
324 | #endif |
411 | #endif |
325 | |
412 | |
326 | #if EV_USE_INOTIFY |
413 | #if EV_USE_INOTIFY |
327 | # include <sys/utsname.h> |
|
|
328 | # include <sys/statfs.h> |
414 | # include <sys/statfs.h> |
329 | # include <sys/inotify.h> |
415 | # include <sys/inotify.h> |
330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
416 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
331 | # ifndef IN_DONT_FOLLOW |
417 | # ifndef IN_DONT_FOLLOW |
332 | # undef EV_USE_INOTIFY |
418 | # undef EV_USE_INOTIFY |
333 | # define EV_USE_INOTIFY 0 |
419 | # define EV_USE_INOTIFY 0 |
334 | # endif |
420 | # endif |
335 | #endif |
421 | #endif |
336 | |
422 | |
337 | #if EV_SELECT_IS_WINSOCKET |
|
|
338 | # include <winsock.h> |
|
|
339 | #endif |
|
|
340 | |
|
|
341 | #if EV_USE_EVENTFD |
423 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
424 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
425 | # include <stdint.h> |
344 | # ifdef __cplusplus |
426 | # ifndef EFD_NONBLOCK |
345 | extern "C" { |
427 | # define EFD_NONBLOCK O_NONBLOCK |
346 | # endif |
428 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
429 | # ifndef EFD_CLOEXEC |
348 | # ifdef __cplusplus |
430 | # ifdef O_CLOEXEC |
349 | } |
431 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
432 | # else |
|
|
433 | # define EFD_CLOEXEC 02000000 |
|
|
434 | # endif |
350 | # endif |
435 | # endif |
|
|
436 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
437 | #endif |
|
|
438 | |
|
|
439 | #if EV_USE_SIGNALFD |
|
|
440 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
441 | # include <stdint.h> |
|
|
442 | # ifndef SFD_NONBLOCK |
|
|
443 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
444 | # endif |
|
|
445 | # ifndef SFD_CLOEXEC |
|
|
446 | # ifdef O_CLOEXEC |
|
|
447 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
448 | # else |
|
|
449 | # define SFD_CLOEXEC 02000000 |
|
|
450 | # endif |
|
|
451 | # endif |
|
|
452 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
453 | |
|
|
454 | struct signalfd_siginfo |
|
|
455 | { |
|
|
456 | uint32_t ssi_signo; |
|
|
457 | char pad[128 - sizeof (uint32_t)]; |
|
|
458 | }; |
351 | #endif |
459 | #endif |
352 | |
460 | |
353 | /**/ |
461 | /**/ |
354 | |
462 | |
355 | #if EV_VERIFY >= 3 |
463 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
464 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
357 | #else |
465 | #else |
358 | # define EV_FREQUENT_CHECK do { } while (0) |
466 | # define EV_FREQUENT_CHECK do { } while (0) |
359 | #endif |
467 | #endif |
360 | |
468 | |
361 | /* |
469 | /* |
362 | * This is used to avoid floating point rounding problems. |
470 | * 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. |
471 | * This value is good at least till the year 4000. |
367 | * Better solutions welcome. |
|
|
368 | */ |
472 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
473 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
474 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
370 | |
475 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
476 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
477 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
374 | |
478 | |
|
|
479 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
480 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
481 | |
|
|
482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
483 | /* ECB.H BEGIN */ |
|
|
484 | /* |
|
|
485 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
486 | * |
|
|
487 | * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
488 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
489 | * All rights reserved. |
|
|
490 | * |
|
|
491 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
492 | * tion, are permitted provided that the following conditions are met: |
|
|
493 | * |
|
|
494 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
495 | * this list of conditions and the following disclaimer. |
|
|
496 | * |
|
|
497 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
498 | * notice, this list of conditions and the following disclaimer in the |
|
|
499 | * documentation and/or other materials provided with the distribution. |
|
|
500 | * |
|
|
501 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
502 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
503 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
504 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
505 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
506 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
509 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
510 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
511 | */ |
|
|
512 | |
|
|
513 | #ifndef ECB_H |
|
|
514 | #define ECB_H |
|
|
515 | |
|
|
516 | /* 16 bits major, 16 bits minor */ |
|
|
517 | #define ECB_VERSION 0x00010003 |
|
|
518 | |
|
|
519 | #ifdef _WIN32 |
|
|
520 | typedef signed char int8_t; |
|
|
521 | typedef unsigned char uint8_t; |
|
|
522 | typedef signed short int16_t; |
|
|
523 | typedef unsigned short uint16_t; |
|
|
524 | typedef signed int int32_t; |
|
|
525 | typedef unsigned int uint32_t; |
375 | #if __GNUC__ >= 4 |
526 | #if __GNUC__ |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
527 | typedef signed long long int64_t; |
377 | # define noinline __attribute__ ((noinline)) |
528 | typedef unsigned long long uint64_t; |
|
|
529 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
530 | typedef signed __int64 int64_t; |
|
|
531 | typedef unsigned __int64 uint64_t; |
|
|
532 | #endif |
|
|
533 | #ifdef _WIN64 |
|
|
534 | #define ECB_PTRSIZE 8 |
|
|
535 | typedef uint64_t uintptr_t; |
|
|
536 | typedef int64_t intptr_t; |
|
|
537 | #else |
|
|
538 | #define ECB_PTRSIZE 4 |
|
|
539 | typedef uint32_t uintptr_t; |
|
|
540 | typedef int32_t intptr_t; |
|
|
541 | #endif |
378 | #else |
542 | #else |
379 | # define expect(expr,value) (expr) |
543 | #include <inttypes.h> |
380 | # define noinline |
544 | #if UINTMAX_MAX > 0xffffffffU |
381 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
545 | #define ECB_PTRSIZE 8 |
382 | # define inline |
546 | #else |
|
|
547 | #define ECB_PTRSIZE 4 |
|
|
548 | #endif |
383 | # endif |
549 | #endif |
|
|
550 | |
|
|
551 | /* work around x32 idiocy by defining proper macros */ |
|
|
552 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
|
|
553 | #if _ILP32 |
|
|
554 | #define ECB_AMD64_X32 1 |
|
|
555 | #else |
|
|
556 | #define ECB_AMD64 1 |
384 | #endif |
557 | #endif |
|
|
558 | #endif |
385 | |
559 | |
|
|
560 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
561 | * what their idiot authors think are the "more important" extensions, |
|
|
562 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
563 | * or so. |
|
|
564 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
565 | * an issue with that they should have done it right in the first place. |
|
|
566 | */ |
|
|
567 | #ifndef ECB_GCC_VERSION |
|
|
568 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
569 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
570 | #else |
|
|
571 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
572 | #endif |
|
|
573 | #endif |
|
|
574 | |
|
|
575 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
576 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
577 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
578 | #define ECB_CPP (__cplusplus+0) |
|
|
579 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
580 | |
|
|
581 | #if ECB_CPP |
|
|
582 | #define ECB_EXTERN_C extern "C" |
|
|
583 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
584 | #define ECB_EXTERN_C_END } |
|
|
585 | #else |
|
|
586 | #define ECB_EXTERN_C extern |
|
|
587 | #define ECB_EXTERN_C_BEG |
|
|
588 | #define ECB_EXTERN_C_END |
|
|
589 | #endif |
|
|
590 | |
|
|
591 | /*****************************************************************************/ |
|
|
592 | |
|
|
593 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
594 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
595 | |
|
|
596 | #if ECB_NO_THREADS |
|
|
597 | #define ECB_NO_SMP 1 |
|
|
598 | #endif |
|
|
599 | |
|
|
600 | #if ECB_NO_SMP |
|
|
601 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | #ifndef ECB_MEMORY_FENCE |
|
|
605 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
606 | #if __i386 || __i386__ |
|
|
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
610 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
612 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
613 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
614 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
616 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
617 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
619 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
620 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
622 | #elif (__sparc || __sparc__) && !__sparcv8 |
|
|
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
624 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
625 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
626 | #elif defined __s390__ || defined __s390x__ |
|
|
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
628 | #elif defined __mips__ |
|
|
629 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
630 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
631 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
632 | #elif defined __alpha__ |
|
|
633 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
634 | #elif defined __hppa__ |
|
|
635 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
636 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
637 | #elif defined __ia64__ |
|
|
638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
639 | #elif defined __m68k__ |
|
|
640 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
641 | #elif defined __m88k__ |
|
|
642 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
643 | #elif defined __sh__ |
|
|
644 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
645 | #endif |
|
|
646 | #endif |
|
|
647 | #endif |
|
|
648 | |
|
|
649 | #ifndef ECB_MEMORY_FENCE |
|
|
650 | #if ECB_GCC_VERSION(4,7) |
|
|
651 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
652 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
653 | |
|
|
654 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
655 | * without risking compile time errors with other compilers. We *could* |
|
|
656 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
657 | * around this shit time and again. |
|
|
658 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
659 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
660 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
661 | */ |
|
|
662 | |
|
|
663 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
664 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
665 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
666 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
667 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
668 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
669 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
670 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
671 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
672 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
673 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
674 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
675 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
676 | #elif defined _WIN32 |
|
|
677 | #include <WinNT.h> |
|
|
678 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
679 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
680 | #include <mbarrier.h> |
|
|
681 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
682 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
683 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
684 | #elif __xlC__ |
|
|
685 | #define ECB_MEMORY_FENCE __sync () |
|
|
686 | #endif |
|
|
687 | #endif |
|
|
688 | |
|
|
689 | #ifndef ECB_MEMORY_FENCE |
|
|
690 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
691 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
692 | /* not just C11 atomics and atomic accesses */ |
|
|
693 | #include <stdatomic.h> |
|
|
694 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
695 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
696 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
697 | /* for most usages, or gcc and clang have a bug */ |
|
|
698 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
699 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
700 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
701 | #endif |
|
|
702 | #endif |
|
|
703 | |
|
|
704 | #ifndef ECB_MEMORY_FENCE |
|
|
705 | #if !ECB_AVOID_PTHREADS |
|
|
706 | /* |
|
|
707 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
708 | * or failure to find pthread.h, then you should implement |
|
|
709 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
710 | * OR provide pthread.h and link against the posix thread library |
|
|
711 | * of your system. |
|
|
712 | */ |
|
|
713 | #include <pthread.h> |
|
|
714 | #define ECB_NEEDS_PTHREADS 1 |
|
|
715 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
716 | |
|
|
717 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
718 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
719 | #endif |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
723 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
724 | #endif |
|
|
725 | |
|
|
726 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
727 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
728 | #endif |
|
|
729 | |
|
|
730 | /*****************************************************************************/ |
|
|
731 | |
|
|
732 | #if __cplusplus |
|
|
733 | #define ecb_inline static inline |
|
|
734 | #elif ECB_GCC_VERSION(2,5) |
|
|
735 | #define ecb_inline static __inline__ |
|
|
736 | #elif ECB_C99 |
|
|
737 | #define ecb_inline static inline |
|
|
738 | #else |
|
|
739 | #define ecb_inline static |
|
|
740 | #endif |
|
|
741 | |
|
|
742 | #if ECB_GCC_VERSION(3,3) |
|
|
743 | #define ecb_restrict __restrict__ |
|
|
744 | #elif ECB_C99 |
|
|
745 | #define ecb_restrict restrict |
|
|
746 | #else |
|
|
747 | #define ecb_restrict |
|
|
748 | #endif |
|
|
749 | |
|
|
750 | typedef int ecb_bool; |
|
|
751 | |
|
|
752 | #define ECB_CONCAT_(a, b) a ## b |
|
|
753 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
754 | #define ECB_STRINGIFY_(a) # a |
|
|
755 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
756 | |
|
|
757 | #define ecb_function_ ecb_inline |
|
|
758 | |
|
|
759 | #if ECB_GCC_VERSION(3,1) |
|
|
760 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
761 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
762 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
763 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
764 | #else |
|
|
765 | #define ecb_attribute(attrlist) |
|
|
766 | #define ecb_is_constant(expr) 0 |
|
|
767 | #define ecb_expect(expr,value) (expr) |
|
|
768 | #define ecb_prefetch(addr,rw,locality) |
|
|
769 | #endif |
|
|
770 | |
|
|
771 | /* no emulation for ecb_decltype */ |
|
|
772 | #if ECB_GCC_VERSION(4,5) |
|
|
773 | #define ecb_decltype(x) __decltype(x) |
|
|
774 | #elif ECB_GCC_VERSION(3,0) |
|
|
775 | #define ecb_decltype(x) __typeof(x) |
|
|
776 | #endif |
|
|
777 | |
|
|
778 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
779 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
780 | #define ecb_const ecb_attribute ((__const__)) |
|
|
781 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
782 | |
|
|
783 | #if ECB_C11 |
|
|
784 | #define ecb_noreturn _Noreturn |
|
|
785 | #else |
|
|
786 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
787 | #endif |
|
|
788 | |
|
|
789 | #if ECB_GCC_VERSION(4,3) |
|
|
790 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
791 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
792 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
793 | #else |
|
|
794 | #define ecb_artificial |
|
|
795 | #define ecb_hot |
|
|
796 | #define ecb_cold |
|
|
797 | #endif |
|
|
798 | |
|
|
799 | /* put around conditional expressions if you are very sure that the */ |
|
|
800 | /* expression is mostly true or mostly false. note that these return */ |
|
|
801 | /* booleans, not the expression. */ |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
802 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
387 | #define expect_true(expr) expect ((expr) != 0, 1) |
803 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
804 | /* for compatibility to the rest of the world */ |
|
|
805 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
806 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
807 | |
|
|
808 | /* count trailing zero bits and count # of one bits */ |
|
|
809 | #if ECB_GCC_VERSION(3,4) |
|
|
810 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
811 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
812 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
813 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
814 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
815 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
816 | /* no popcountll */ |
|
|
817 | #else |
|
|
818 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
819 | ecb_function_ int |
|
|
820 | ecb_ctz32 (uint32_t x) |
|
|
821 | { |
|
|
822 | int r = 0; |
|
|
823 | |
|
|
824 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
825 | |
|
|
826 | #if ECB_branchless_on_i386 |
|
|
827 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
828 | r += !!(x & 0xcccccccc) << 1; |
|
|
829 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
830 | r += !!(x & 0xff00ff00) << 3; |
|
|
831 | r += !!(x & 0xffff0000) << 4; |
|
|
832 | #else |
|
|
833 | if (x & 0xaaaaaaaa) r += 1; |
|
|
834 | if (x & 0xcccccccc) r += 2; |
|
|
835 | if (x & 0xf0f0f0f0) r += 4; |
|
|
836 | if (x & 0xff00ff00) r += 8; |
|
|
837 | if (x & 0xffff0000) r += 16; |
|
|
838 | #endif |
|
|
839 | |
|
|
840 | return r; |
|
|
841 | } |
|
|
842 | |
|
|
843 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
844 | ecb_function_ int |
|
|
845 | ecb_ctz64 (uint64_t x) |
|
|
846 | { |
|
|
847 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
848 | return ecb_ctz32 (x >> shift) + shift; |
|
|
849 | } |
|
|
850 | |
|
|
851 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
852 | ecb_function_ int |
|
|
853 | ecb_popcount32 (uint32_t x) |
|
|
854 | { |
|
|
855 | x -= (x >> 1) & 0x55555555; |
|
|
856 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
857 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
858 | x *= 0x01010101; |
|
|
859 | |
|
|
860 | return x >> 24; |
|
|
861 | } |
|
|
862 | |
|
|
863 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
864 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
865 | { |
|
|
866 | int r = 0; |
|
|
867 | |
|
|
868 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
869 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
870 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
871 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
872 | if (x >> 1) { r += 1; } |
|
|
873 | |
|
|
874 | return r; |
|
|
875 | } |
|
|
876 | |
|
|
877 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
878 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
879 | { |
|
|
880 | int r = 0; |
|
|
881 | |
|
|
882 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
883 | |
|
|
884 | return r + ecb_ld32 (x); |
|
|
885 | } |
|
|
886 | #endif |
|
|
887 | |
|
|
888 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
889 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
890 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
891 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
892 | |
|
|
893 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
894 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
895 | { |
|
|
896 | return ( (x * 0x0802U & 0x22110U) |
|
|
897 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
898 | } |
|
|
899 | |
|
|
900 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
901 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
902 | { |
|
|
903 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
904 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
905 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
906 | x = ( x >> 8 ) | ( x << 8); |
|
|
907 | |
|
|
908 | return x; |
|
|
909 | } |
|
|
910 | |
|
|
911 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
912 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
913 | { |
|
|
914 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
915 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
916 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
917 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
918 | x = ( x >> 16 ) | ( x << 16); |
|
|
919 | |
|
|
920 | return x; |
|
|
921 | } |
|
|
922 | |
|
|
923 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
924 | /* so for this version we are lazy */ |
|
|
925 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
926 | ecb_function_ int |
|
|
927 | ecb_popcount64 (uint64_t x) |
|
|
928 | { |
|
|
929 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
930 | } |
|
|
931 | |
|
|
932 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
933 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
934 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
935 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
936 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
937 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
938 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
939 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
940 | |
|
|
941 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
942 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
943 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
944 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
945 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
946 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
947 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
948 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
949 | |
|
|
950 | #if ECB_GCC_VERSION(4,3) |
|
|
951 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
952 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
953 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
954 | #else |
|
|
955 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
956 | ecb_function_ uint16_t |
|
|
957 | ecb_bswap16 (uint16_t x) |
|
|
958 | { |
|
|
959 | return ecb_rotl16 (x, 8); |
|
|
960 | } |
|
|
961 | |
|
|
962 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
963 | ecb_function_ uint32_t |
|
|
964 | ecb_bswap32 (uint32_t x) |
|
|
965 | { |
|
|
966 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
967 | } |
|
|
968 | |
|
|
969 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
970 | ecb_function_ uint64_t |
|
|
971 | ecb_bswap64 (uint64_t x) |
|
|
972 | { |
|
|
973 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
974 | } |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | #if ECB_GCC_VERSION(4,5) |
|
|
978 | #define ecb_unreachable() __builtin_unreachable () |
|
|
979 | #else |
|
|
980 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
981 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
982 | ecb_inline void ecb_unreachable (void) { } |
|
|
983 | #endif |
|
|
984 | |
|
|
985 | /* try to tell the compiler that some condition is definitely true */ |
|
|
986 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
987 | |
|
|
988 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
989 | ecb_inline unsigned char |
|
|
990 | ecb_byteorder_helper (void) |
|
|
991 | { |
|
|
992 | /* the union code still generates code under pressure in gcc, */ |
|
|
993 | /* but less than using pointers, and always seems to */ |
|
|
994 | /* successfully return a constant. */ |
|
|
995 | /* the reason why we have this horrible preprocessor mess */ |
|
|
996 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
997 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
998 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
999 | return 0x44; |
|
|
1000 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
1001 | return 0x44; |
|
|
1002 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1003 | return 0x11; |
|
|
1004 | #else |
|
|
1005 | union |
|
|
1006 | { |
|
|
1007 | uint32_t i; |
|
|
1008 | uint8_t c; |
|
|
1009 | } u = { 0x11223344 }; |
|
|
1010 | return u.c; |
|
|
1011 | #endif |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1015 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1016 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1017 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1018 | |
|
|
1019 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1020 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1021 | #else |
|
|
1022 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1023 | #endif |
|
|
1024 | |
|
|
1025 | #if __cplusplus |
|
|
1026 | template<typename T> |
|
|
1027 | static inline T ecb_div_rd (T val, T div) |
|
|
1028 | { |
|
|
1029 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1030 | } |
|
|
1031 | template<typename T> |
|
|
1032 | static inline T ecb_div_ru (T val, T div) |
|
|
1033 | { |
|
|
1034 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1035 | } |
|
|
1036 | #else |
|
|
1037 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1038 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1039 | #endif |
|
|
1040 | |
|
|
1041 | #if ecb_cplusplus_does_not_suck |
|
|
1042 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1043 | template<typename T, int N> |
|
|
1044 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1045 | { |
|
|
1046 | return N; |
|
|
1047 | } |
|
|
1048 | #else |
|
|
1049 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1050 | #endif |
|
|
1051 | |
|
|
1052 | /*******************************************************************************/ |
|
|
1053 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1054 | |
|
|
1055 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1056 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1057 | #if 0 \ |
|
|
1058 | || __i386 || __i386__ \ |
|
|
1059 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1060 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1061 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1062 | || defined __s390__ || defined __s390x__ \ |
|
|
1063 | || defined __mips__ \ |
|
|
1064 | || defined __alpha__ \ |
|
|
1065 | || defined __hppa__ \ |
|
|
1066 | || defined __ia64__ \ |
|
|
1067 | || defined __m68k__ \ |
|
|
1068 | || defined __m88k__ \ |
|
|
1069 | || defined __sh__ \ |
|
|
1070 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1071 | #define ECB_STDFP 1 |
|
|
1072 | #include <string.h> /* for memcpy */ |
|
|
1073 | #else |
|
|
1074 | #define ECB_STDFP 0 |
|
|
1075 | #endif |
|
|
1076 | |
|
|
1077 | #ifndef ECB_NO_LIBM |
|
|
1078 | |
|
|
1079 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1080 | |
|
|
1081 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1082 | #ifdef INFINITY |
|
|
1083 | #define ECB_INFINITY INFINITY |
|
|
1084 | #else |
|
|
1085 | #define ECB_INFINITY HUGE_VAL |
|
|
1086 | #endif |
|
|
1087 | |
|
|
1088 | #ifdef NAN |
|
|
1089 | #define ECB_NAN NAN |
|
|
1090 | #else |
|
|
1091 | #define ECB_NAN ECB_INFINITY |
|
|
1092 | #endif |
|
|
1093 | |
|
|
1094 | /* converts an ieee half/binary16 to a float */ |
|
|
1095 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1096 | ecb_function_ float |
|
|
1097 | ecb_binary16_to_float (uint16_t x) |
|
|
1098 | { |
|
|
1099 | int e = (x >> 10) & 0x1f; |
|
|
1100 | int m = x & 0x3ff; |
|
|
1101 | float r; |
|
|
1102 | |
|
|
1103 | if (!e ) r = ldexpf (m , -24); |
|
|
1104 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1105 | else if (m ) r = ECB_NAN; |
|
|
1106 | else r = ECB_INFINITY; |
|
|
1107 | |
|
|
1108 | return x & 0x8000 ? -r : r; |
|
|
1109 | } |
|
|
1110 | |
|
|
1111 | /* convert a float to ieee single/binary32 */ |
|
|
1112 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1113 | ecb_function_ uint32_t |
|
|
1114 | ecb_float_to_binary32 (float x) |
|
|
1115 | { |
|
|
1116 | uint32_t r; |
|
|
1117 | |
|
|
1118 | #if ECB_STDFP |
|
|
1119 | memcpy (&r, &x, 4); |
|
|
1120 | #else |
|
|
1121 | /* slow emulation, works for anything but -0 */ |
|
|
1122 | uint32_t m; |
|
|
1123 | int e; |
|
|
1124 | |
|
|
1125 | if (x == 0e0f ) return 0x00000000U; |
|
|
1126 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1127 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1128 | if (x != x ) return 0x7fbfffffU; |
|
|
1129 | |
|
|
1130 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1131 | |
|
|
1132 | r = m & 0x80000000U; |
|
|
1133 | |
|
|
1134 | if (r) |
|
|
1135 | m = -m; |
|
|
1136 | |
|
|
1137 | if (e <= -126) |
|
|
1138 | { |
|
|
1139 | m &= 0xffffffU; |
|
|
1140 | m >>= (-125 - e); |
|
|
1141 | e = -126; |
|
|
1142 | } |
|
|
1143 | |
|
|
1144 | r |= (e + 126) << 23; |
|
|
1145 | r |= m & 0x7fffffU; |
|
|
1146 | #endif |
|
|
1147 | |
|
|
1148 | return r; |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | /* converts an ieee single/binary32 to a float */ |
|
|
1152 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1153 | ecb_function_ float |
|
|
1154 | ecb_binary32_to_float (uint32_t x) |
|
|
1155 | { |
|
|
1156 | float r; |
|
|
1157 | |
|
|
1158 | #if ECB_STDFP |
|
|
1159 | memcpy (&r, &x, 4); |
|
|
1160 | #else |
|
|
1161 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1162 | int neg = x >> 31; |
|
|
1163 | int e = (x >> 23) & 0xffU; |
|
|
1164 | |
|
|
1165 | x &= 0x7fffffU; |
|
|
1166 | |
|
|
1167 | if (e) |
|
|
1168 | x |= 0x800000U; |
|
|
1169 | else |
|
|
1170 | e = 1; |
|
|
1171 | |
|
|
1172 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1173 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1174 | |
|
|
1175 | r = neg ? -r : r; |
|
|
1176 | #endif |
|
|
1177 | |
|
|
1178 | return r; |
|
|
1179 | } |
|
|
1180 | |
|
|
1181 | /* convert a double to ieee double/binary64 */ |
|
|
1182 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1183 | ecb_function_ uint64_t |
|
|
1184 | ecb_double_to_binary64 (double x) |
|
|
1185 | { |
|
|
1186 | uint64_t r; |
|
|
1187 | |
|
|
1188 | #if ECB_STDFP |
|
|
1189 | memcpy (&r, &x, 8); |
|
|
1190 | #else |
|
|
1191 | /* slow emulation, works for anything but -0 */ |
|
|
1192 | uint64_t m; |
|
|
1193 | int e; |
|
|
1194 | |
|
|
1195 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1196 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1197 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1198 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1199 | |
|
|
1200 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1201 | |
|
|
1202 | r = m & 0x8000000000000000;; |
|
|
1203 | |
|
|
1204 | if (r) |
|
|
1205 | m = -m; |
|
|
1206 | |
|
|
1207 | if (e <= -1022) |
|
|
1208 | { |
|
|
1209 | m &= 0x1fffffffffffffU; |
|
|
1210 | m >>= (-1021 - e); |
|
|
1211 | e = -1022; |
|
|
1212 | } |
|
|
1213 | |
|
|
1214 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1215 | r |= m & 0xfffffffffffffU; |
|
|
1216 | #endif |
|
|
1217 | |
|
|
1218 | return r; |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | /* converts an ieee double/binary64 to a double */ |
|
|
1222 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1223 | ecb_function_ double |
|
|
1224 | ecb_binary64_to_double (uint64_t x) |
|
|
1225 | { |
|
|
1226 | double r; |
|
|
1227 | |
|
|
1228 | #if ECB_STDFP |
|
|
1229 | memcpy (&r, &x, 8); |
|
|
1230 | #else |
|
|
1231 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1232 | int neg = x >> 63; |
|
|
1233 | int e = (x >> 52) & 0x7ffU; |
|
|
1234 | |
|
|
1235 | x &= 0xfffffffffffffU; |
|
|
1236 | |
|
|
1237 | if (e) |
|
|
1238 | x |= 0x10000000000000U; |
|
|
1239 | else |
|
|
1240 | e = 1; |
|
|
1241 | |
|
|
1242 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1243 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1244 | |
|
|
1245 | r = neg ? -r : r; |
|
|
1246 | #endif |
|
|
1247 | |
|
|
1248 | return r; |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | #endif |
|
|
1252 | |
|
|
1253 | #endif |
|
|
1254 | |
|
|
1255 | /* ECB.H END */ |
|
|
1256 | |
|
|
1257 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1258 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1259 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1260 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1261 | * libev, in which cases the memory fences become nops. |
|
|
1262 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1263 | * which will then provide the memory fences. |
|
|
1264 | */ |
|
|
1265 | # error "memory fences not defined for your architecture, please report" |
|
|
1266 | #endif |
|
|
1267 | |
|
|
1268 | #ifndef ECB_MEMORY_FENCE |
|
|
1269 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1270 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1271 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1272 | #endif |
|
|
1273 | |
|
|
1274 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1275 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1276 | #define noinline ecb_noinline |
|
|
1277 | |
388 | #define inline_size static inline |
1278 | #define inline_size ecb_inline |
389 | |
1279 | |
390 | #if EV_MINIMAL |
1280 | #if EV_FEATURE_CODE |
|
|
1281 | # define inline_speed ecb_inline |
|
|
1282 | #else |
391 | # define inline_speed static noinline |
1283 | # define inline_speed static noinline |
392 | #else |
|
|
393 | # define inline_speed static inline |
|
|
394 | #endif |
1284 | #endif |
395 | |
1285 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1286 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
397 | |
1287 | |
398 | #if EV_MINPRI == EV_MAXPRI |
1288 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
411 | #define ev_active(w) ((W)(w))->active |
1301 | #define ev_active(w) ((W)(w))->active |
412 | #define ev_at(w) ((WT)(w))->at |
1302 | #define ev_at(w) ((WT)(w))->at |
413 | |
1303 | |
414 | #if EV_USE_REALTIME |
1304 | #if EV_USE_REALTIME |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1305 | /* 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 */ |
1306 | /* giving it a reasonably high chance of working on typical architectures */ |
417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1307 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
418 | #endif |
1308 | #endif |
419 | |
1309 | |
420 | #if EV_USE_MONOTONIC |
1310 | #if EV_USE_MONOTONIC |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1311 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
422 | #endif |
1312 | #endif |
423 | |
1313 | |
|
|
1314 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1315 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1316 | #endif |
|
|
1317 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1318 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1319 | #endif |
|
|
1320 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1321 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
1322 | #endif |
|
|
1323 | |
424 | #ifdef _WIN32 |
1324 | #ifdef _WIN32 |
425 | # include "ev_win32.c" |
1325 | # include "ev_win32.c" |
426 | #endif |
1326 | #endif |
427 | |
1327 | |
428 | /*****************************************************************************/ |
1328 | /*****************************************************************************/ |
429 | |
1329 | |
|
|
1330 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1331 | |
|
|
1332 | #if EV_USE_FLOOR |
|
|
1333 | # include <math.h> |
|
|
1334 | # define ev_floor(v) floor (v) |
|
|
1335 | #else |
|
|
1336 | |
|
|
1337 | #include <float.h> |
|
|
1338 | |
|
|
1339 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1340 | static ev_tstamp noinline |
|
|
1341 | ev_floor (ev_tstamp v) |
|
|
1342 | { |
|
|
1343 | /* the choice of shift factor is not terribly important */ |
|
|
1344 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1345 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1346 | #else |
|
|
1347 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1348 | #endif |
|
|
1349 | |
|
|
1350 | /* argument too large for an unsigned long? */ |
|
|
1351 | if (expect_false (v >= shift)) |
|
|
1352 | { |
|
|
1353 | ev_tstamp f; |
|
|
1354 | |
|
|
1355 | if (v == v - 1.) |
|
|
1356 | return v; /* very large number */ |
|
|
1357 | |
|
|
1358 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1359 | return f + ev_floor (v - f); |
|
|
1360 | } |
|
|
1361 | |
|
|
1362 | /* special treatment for negative args? */ |
|
|
1363 | if (expect_false (v < 0.)) |
|
|
1364 | { |
|
|
1365 | ev_tstamp f = -ev_floor (-v); |
|
|
1366 | |
|
|
1367 | return f - (f == v ? 0 : 1); |
|
|
1368 | } |
|
|
1369 | |
|
|
1370 | /* fits into an unsigned long */ |
|
|
1371 | return (unsigned long)v; |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | #endif |
|
|
1375 | |
|
|
1376 | /*****************************************************************************/ |
|
|
1377 | |
|
|
1378 | #ifdef __linux |
|
|
1379 | # include <sys/utsname.h> |
|
|
1380 | #endif |
|
|
1381 | |
|
|
1382 | static unsigned int noinline ecb_cold |
|
|
1383 | ev_linux_version (void) |
|
|
1384 | { |
|
|
1385 | #ifdef __linux |
|
|
1386 | unsigned int v = 0; |
|
|
1387 | struct utsname buf; |
|
|
1388 | int i; |
|
|
1389 | char *p = buf.release; |
|
|
1390 | |
|
|
1391 | if (uname (&buf)) |
|
|
1392 | return 0; |
|
|
1393 | |
|
|
1394 | for (i = 3+1; --i; ) |
|
|
1395 | { |
|
|
1396 | unsigned int c = 0; |
|
|
1397 | |
|
|
1398 | for (;;) |
|
|
1399 | { |
|
|
1400 | if (*p >= '0' && *p <= '9') |
|
|
1401 | c = c * 10 + *p++ - '0'; |
|
|
1402 | else |
|
|
1403 | { |
|
|
1404 | p += *p == '.'; |
|
|
1405 | break; |
|
|
1406 | } |
|
|
1407 | } |
|
|
1408 | |
|
|
1409 | v = (v << 8) | c; |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | return v; |
|
|
1413 | #else |
|
|
1414 | return 0; |
|
|
1415 | #endif |
|
|
1416 | } |
|
|
1417 | |
|
|
1418 | /*****************************************************************************/ |
|
|
1419 | |
|
|
1420 | #if EV_AVOID_STDIO |
|
|
1421 | static void noinline ecb_cold |
|
|
1422 | ev_printerr (const char *msg) |
|
|
1423 | { |
|
|
1424 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1425 | } |
|
|
1426 | #endif |
|
|
1427 | |
430 | static void (*syserr_cb)(const char *msg); |
1428 | static void (*syserr_cb)(const char *msg) EV_THROW; |
431 | |
1429 | |
432 | void |
1430 | void ecb_cold |
433 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1431 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
434 | { |
1432 | { |
435 | syserr_cb = cb; |
1433 | syserr_cb = cb; |
436 | } |
1434 | } |
437 | |
1435 | |
438 | static void noinline |
1436 | static void noinline ecb_cold |
439 | ev_syserr (const char *msg) |
1437 | ev_syserr (const char *msg) |
440 | { |
1438 | { |
441 | if (!msg) |
1439 | if (!msg) |
442 | msg = "(libev) system error"; |
1440 | msg = "(libev) system error"; |
443 | |
1441 | |
444 | if (syserr_cb) |
1442 | if (syserr_cb) |
445 | syserr_cb (msg); |
1443 | syserr_cb (msg); |
446 | else |
1444 | else |
447 | { |
1445 | { |
|
|
1446 | #if EV_AVOID_STDIO |
|
|
1447 | ev_printerr (msg); |
|
|
1448 | ev_printerr (": "); |
|
|
1449 | ev_printerr (strerror (errno)); |
|
|
1450 | ev_printerr ("\n"); |
|
|
1451 | #else |
448 | perror (msg); |
1452 | perror (msg); |
|
|
1453 | #endif |
449 | abort (); |
1454 | abort (); |
450 | } |
1455 | } |
451 | } |
1456 | } |
452 | |
1457 | |
453 | static void * |
1458 | static void * |
454 | ev_realloc_emul (void *ptr, long size) |
1459 | ev_realloc_emul (void *ptr, long size) EV_THROW |
455 | { |
1460 | { |
456 | /* some systems, notably openbsd and darwin, fail to properly |
1461 | /* some systems, notably openbsd and darwin, fail to properly |
457 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1462 | * implement realloc (x, 0) (as required by both ansi c-89 and |
458 | * the single unix specification, so work around them here. |
1463 | * the single unix specification, so work around them here. |
|
|
1464 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1465 | * despite documenting it otherwise. |
459 | */ |
1466 | */ |
460 | |
1467 | |
461 | if (size) |
1468 | if (size) |
462 | return realloc (ptr, size); |
1469 | return realloc (ptr, size); |
463 | |
1470 | |
464 | free (ptr); |
1471 | free (ptr); |
465 | return 0; |
1472 | return 0; |
466 | } |
1473 | } |
467 | |
1474 | |
468 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1475 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
469 | |
1476 | |
470 | void |
1477 | void ecb_cold |
471 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1478 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
472 | { |
1479 | { |
473 | alloc = cb; |
1480 | alloc = cb; |
474 | } |
1481 | } |
475 | |
1482 | |
476 | inline_speed void * |
1483 | inline_speed void * |
… | |
… | |
478 | { |
1485 | { |
479 | ptr = alloc (ptr, size); |
1486 | ptr = alloc (ptr, size); |
480 | |
1487 | |
481 | if (!ptr && size) |
1488 | if (!ptr && size) |
482 | { |
1489 | { |
|
|
1490 | #if EV_AVOID_STDIO |
|
|
1491 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1492 | #else |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1493 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1494 | #endif |
484 | abort (); |
1495 | abort (); |
485 | } |
1496 | } |
486 | |
1497 | |
487 | return ptr; |
1498 | return ptr; |
488 | } |
1499 | } |
… | |
… | |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
1501 | #define ev_malloc(size) ev_realloc (0, (size)) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1502 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
492 | |
1503 | |
493 | /*****************************************************************************/ |
1504 | /*****************************************************************************/ |
494 | |
1505 | |
|
|
1506 | /* set in reify when reification needed */ |
|
|
1507 | #define EV_ANFD_REIFY 1 |
|
|
1508 | |
495 | /* file descriptor info structure */ |
1509 | /* file descriptor info structure */ |
496 | typedef struct |
1510 | typedef struct |
497 | { |
1511 | { |
498 | WL head; |
1512 | WL head; |
499 | unsigned char events; /* the events watched for */ |
1513 | unsigned char events; /* the events watched for */ |
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
1514 | 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 */ |
1515 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
502 | unsigned char unused; |
1516 | unsigned char unused; |
503 | #if EV_USE_EPOLL |
1517 | #if EV_USE_EPOLL |
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1518 | unsigned int egen; /* generation counter to counter epoll bugs */ |
505 | #endif |
1519 | #endif |
506 | #if EV_SELECT_IS_WINSOCKET |
1520 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
507 | SOCKET handle; |
1521 | SOCKET handle; |
|
|
1522 | #endif |
|
|
1523 | #if EV_USE_IOCP |
|
|
1524 | OVERLAPPED or, ow; |
508 | #endif |
1525 | #endif |
509 | } ANFD; |
1526 | } ANFD; |
510 | |
1527 | |
511 | /* stores the pending event set for a given watcher */ |
1528 | /* stores the pending event set for a given watcher */ |
512 | typedef struct |
1529 | typedef struct |
… | |
… | |
554 | #undef VAR |
1571 | #undef VAR |
555 | }; |
1572 | }; |
556 | #include "ev_wrap.h" |
1573 | #include "ev_wrap.h" |
557 | |
1574 | |
558 | static struct ev_loop default_loop_struct; |
1575 | static struct ev_loop default_loop_struct; |
559 | struct ev_loop *ev_default_loop_ptr; |
1576 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
560 | |
1577 | |
561 | #else |
1578 | #else |
562 | |
1579 | |
563 | ev_tstamp ev_rt_now; |
1580 | 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; |
1581 | #define VAR(name,decl) static decl; |
565 | #include "ev_vars.h" |
1582 | #include "ev_vars.h" |
566 | #undef VAR |
1583 | #undef VAR |
567 | |
1584 | |
568 | static int ev_default_loop_ptr; |
1585 | static int ev_default_loop_ptr; |
569 | |
1586 | |
570 | #endif |
1587 | #endif |
571 | |
1588 | |
572 | #if EV_MINIMAL < 2 |
1589 | #if EV_FEATURE_API |
573 | # define EV_SUSPEND_CB if (expect_false (suspend_cb)) suspend_cb (EV_A) |
|
|
574 | # define EV_RESUME_CB if (expect_false (resume_cb )) resume_cb (EV_A) |
1590 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1591 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
575 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1592 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
576 | #else |
1593 | #else |
577 | # define EV_SUSPEND_CB (void)0 |
|
|
578 | # define EV_RESUME_CB (void)0 |
1594 | # define EV_RELEASE_CB (void)0 |
|
|
1595 | # define EV_ACQUIRE_CB (void)0 |
579 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1596 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
580 | #endif |
1597 | #endif |
|
|
1598 | |
|
|
1599 | #define EVBREAK_RECURSE 0x80 |
581 | |
1600 | |
582 | /*****************************************************************************/ |
1601 | /*****************************************************************************/ |
583 | |
1602 | |
584 | #ifndef EV_HAVE_EV_TIME |
1603 | #ifndef EV_HAVE_EV_TIME |
585 | ev_tstamp |
1604 | ev_tstamp |
586 | ev_time (void) |
1605 | ev_time (void) EV_THROW |
587 | { |
1606 | { |
588 | #if EV_USE_REALTIME |
1607 | #if EV_USE_REALTIME |
589 | if (expect_true (have_realtime)) |
1608 | if (expect_true (have_realtime)) |
590 | { |
1609 | { |
591 | struct timespec ts; |
1610 | struct timespec ts; |
… | |
… | |
615 | return ev_time (); |
1634 | return ev_time (); |
616 | } |
1635 | } |
617 | |
1636 | |
618 | #if EV_MULTIPLICITY |
1637 | #if EV_MULTIPLICITY |
619 | ev_tstamp |
1638 | ev_tstamp |
620 | ev_now (EV_P) |
1639 | ev_now (EV_P) EV_THROW |
621 | { |
1640 | { |
622 | return ev_rt_now; |
1641 | return ev_rt_now; |
623 | } |
1642 | } |
624 | #endif |
1643 | #endif |
625 | |
1644 | |
626 | void |
1645 | void |
627 | ev_sleep (ev_tstamp delay) |
1646 | ev_sleep (ev_tstamp delay) EV_THROW |
628 | { |
1647 | { |
629 | if (delay > 0.) |
1648 | if (delay > 0.) |
630 | { |
1649 | { |
631 | #if EV_USE_NANOSLEEP |
1650 | #if EV_USE_NANOSLEEP |
632 | struct timespec ts; |
1651 | struct timespec ts; |
633 | |
1652 | |
634 | ts.tv_sec = (time_t)delay; |
1653 | EV_TS_SET (ts, delay); |
635 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
636 | |
|
|
637 | nanosleep (&ts, 0); |
1654 | nanosleep (&ts, 0); |
638 | #elif defined(_WIN32) |
1655 | #elif defined _WIN32 |
639 | Sleep ((unsigned long)(delay * 1e3)); |
1656 | Sleep ((unsigned long)(delay * 1e3)); |
640 | #else |
1657 | #else |
641 | struct timeval tv; |
1658 | struct timeval tv; |
642 | |
1659 | |
643 | tv.tv_sec = (time_t)delay; |
|
|
644 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
645 | |
|
|
646 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1660 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
647 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
1661 | /* something not guaranteed by newer posix versions, but guaranteed */ |
648 | /* by older ones */ |
1662 | /* by older ones */ |
|
|
1663 | EV_TV_SET (tv, delay); |
649 | select (0, 0, 0, 0, &tv); |
1664 | select (0, 0, 0, 0, &tv); |
650 | #endif |
1665 | #endif |
651 | } |
1666 | } |
652 | } |
1667 | } |
653 | |
1668 | |
654 | /*****************************************************************************/ |
1669 | /*****************************************************************************/ |
655 | |
1670 | |
656 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1671 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
657 | |
1672 | |
658 | /* find a suitable new size for the given array, */ |
1673 | /* find a suitable new size for the given array, */ |
659 | /* hopefully by rounding to a ncie-to-malloc size */ |
1674 | /* hopefully by rounding to a nice-to-malloc size */ |
660 | inline_size int |
1675 | inline_size int |
661 | array_nextsize (int elem, int cur, int cnt) |
1676 | array_nextsize (int elem, int cur, int cnt) |
662 | { |
1677 | { |
663 | int ncur = cur + 1; |
1678 | int ncur = cur + 1; |
664 | |
1679 | |
665 | do |
1680 | do |
666 | ncur <<= 1; |
1681 | ncur <<= 1; |
667 | while (cnt > ncur); |
1682 | while (cnt > ncur); |
668 | |
1683 | |
669 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1684 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
670 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1685 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
671 | { |
1686 | { |
672 | ncur *= elem; |
1687 | ncur *= elem; |
673 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1688 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
674 | ncur = ncur - sizeof (void *) * 4; |
1689 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
676 | } |
1691 | } |
677 | |
1692 | |
678 | return ncur; |
1693 | return ncur; |
679 | } |
1694 | } |
680 | |
1695 | |
681 | static noinline void * |
1696 | static void * noinline ecb_cold |
682 | array_realloc (int elem, void *base, int *cur, int cnt) |
1697 | array_realloc (int elem, void *base, int *cur, int cnt) |
683 | { |
1698 | { |
684 | *cur = array_nextsize (elem, *cur, cnt); |
1699 | *cur = array_nextsize (elem, *cur, cnt); |
685 | return ev_realloc (base, elem * *cur); |
1700 | return ev_realloc (base, elem * *cur); |
686 | } |
1701 | } |
… | |
… | |
689 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1704 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
690 | |
1705 | |
691 | #define array_needsize(type,base,cur,cnt,init) \ |
1706 | #define array_needsize(type,base,cur,cnt,init) \ |
692 | if (expect_false ((cnt) > (cur))) \ |
1707 | if (expect_false ((cnt) > (cur))) \ |
693 | { \ |
1708 | { \ |
694 | int ocur_ = (cur); \ |
1709 | int ecb_unused ocur_ = (cur); \ |
695 | (base) = (type *)array_realloc \ |
1710 | (base) = (type *)array_realloc \ |
696 | (sizeof (type), (base), &(cur), (cnt)); \ |
1711 | (sizeof (type), (base), &(cur), (cnt)); \ |
697 | init ((base) + (ocur_), (cur) - ocur_); \ |
1712 | init ((base) + (ocur_), (cur) - ocur_); \ |
698 | } |
1713 | } |
699 | |
1714 | |
… | |
… | |
717 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1732 | pendingcb (EV_P_ ev_prepare *w, int revents) |
718 | { |
1733 | { |
719 | } |
1734 | } |
720 | |
1735 | |
721 | void noinline |
1736 | void noinline |
722 | ev_feed_event (EV_P_ void *w, int revents) |
1737 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
723 | { |
1738 | { |
724 | W w_ = (W)w; |
1739 | W w_ = (W)w; |
725 | int pri = ABSPRI (w_); |
1740 | int pri = ABSPRI (w_); |
726 | |
1741 | |
727 | if (expect_false (w_->pending)) |
1742 | if (expect_false (w_->pending)) |
… | |
… | |
731 | w_->pending = ++pendingcnt [pri]; |
1746 | w_->pending = ++pendingcnt [pri]; |
732 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1747 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
733 | pendings [pri][w_->pending - 1].w = w_; |
1748 | pendings [pri][w_->pending - 1].w = w_; |
734 | pendings [pri][w_->pending - 1].events = revents; |
1749 | pendings [pri][w_->pending - 1].events = revents; |
735 | } |
1750 | } |
|
|
1751 | |
|
|
1752 | pendingpri = NUMPRI - 1; |
736 | } |
1753 | } |
737 | |
1754 | |
738 | inline_speed void |
1755 | inline_speed void |
739 | feed_reverse (EV_P_ W w) |
1756 | feed_reverse (EV_P_ W w) |
740 | { |
1757 | { |
… | |
… | |
760 | } |
1777 | } |
761 | |
1778 | |
762 | /*****************************************************************************/ |
1779 | /*****************************************************************************/ |
763 | |
1780 | |
764 | inline_speed void |
1781 | inline_speed void |
765 | fd_event (EV_P_ int fd, int revents) |
1782 | fd_event_nocheck (EV_P_ int fd, int revents) |
766 | { |
1783 | { |
767 | ANFD *anfd = anfds + fd; |
1784 | ANFD *anfd = anfds + fd; |
768 | ev_io *w; |
1785 | ev_io *w; |
769 | |
1786 | |
770 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1787 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
774 | if (ev) |
1791 | if (ev) |
775 | ev_feed_event (EV_A_ (W)w, ev); |
1792 | ev_feed_event (EV_A_ (W)w, ev); |
776 | } |
1793 | } |
777 | } |
1794 | } |
778 | |
1795 | |
|
|
1796 | /* do not submit kernel events for fds that have reify set */ |
|
|
1797 | /* because that means they changed while we were polling for new events */ |
|
|
1798 | inline_speed void |
|
|
1799 | fd_event (EV_P_ int fd, int revents) |
|
|
1800 | { |
|
|
1801 | ANFD *anfd = anfds + fd; |
|
|
1802 | |
|
|
1803 | if (expect_true (!anfd->reify)) |
|
|
1804 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1805 | } |
|
|
1806 | |
779 | void |
1807 | void |
780 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1808 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
781 | { |
1809 | { |
782 | if (fd >= 0 && fd < anfdmax) |
1810 | if (fd >= 0 && fd < anfdmax) |
783 | fd_event (EV_A_ fd, revents); |
1811 | fd_event_nocheck (EV_A_ fd, revents); |
784 | } |
1812 | } |
785 | |
1813 | |
786 | /* make sure the external fd watch events are in-sync */ |
1814 | /* make sure the external fd watch events are in-sync */ |
787 | /* with the kernel/libev internal state */ |
1815 | /* with the kernel/libev internal state */ |
788 | inline_size void |
1816 | inline_size void |
789 | fd_reify (EV_P) |
1817 | fd_reify (EV_P) |
790 | { |
1818 | { |
791 | int i; |
1819 | int i; |
792 | |
1820 | |
|
|
1821 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1822 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1823 | { |
|
|
1824 | int fd = fdchanges [i]; |
|
|
1825 | ANFD *anfd = anfds + fd; |
|
|
1826 | |
|
|
1827 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1828 | { |
|
|
1829 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1830 | |
|
|
1831 | if (handle != anfd->handle) |
|
|
1832 | { |
|
|
1833 | unsigned long arg; |
|
|
1834 | |
|
|
1835 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1836 | |
|
|
1837 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1838 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1839 | anfd->events = 0; |
|
|
1840 | anfd->handle = handle; |
|
|
1841 | } |
|
|
1842 | } |
|
|
1843 | } |
|
|
1844 | #endif |
|
|
1845 | |
793 | for (i = 0; i < fdchangecnt; ++i) |
1846 | for (i = 0; i < fdchangecnt; ++i) |
794 | { |
1847 | { |
795 | int fd = fdchanges [i]; |
1848 | int fd = fdchanges [i]; |
796 | ANFD *anfd = anfds + fd; |
1849 | ANFD *anfd = anfds + fd; |
797 | ev_io *w; |
1850 | ev_io *w; |
798 | |
1851 | |
799 | unsigned char events = 0; |
1852 | unsigned char o_events = anfd->events; |
|
|
1853 | unsigned char o_reify = anfd->reify; |
800 | |
1854 | |
801 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1855 | anfd->reify = 0; |
802 | events |= (unsigned char)w->events; |
|
|
803 | |
1856 | |
804 | #if EV_SELECT_IS_WINSOCKET |
1857 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
805 | if (events) |
|
|
806 | { |
1858 | { |
807 | unsigned long arg; |
1859 | anfd->events = 0; |
808 | #ifdef EV_FD_TO_WIN32_HANDLE |
1860 | |
809 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1861 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
810 | #else |
1862 | anfd->events |= (unsigned char)w->events; |
811 | anfd->handle = _get_osfhandle (fd); |
1863 | |
812 | #endif |
1864 | if (o_events != anfd->events) |
813 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1865 | o_reify = EV__IOFDSET; /* actually |= */ |
814 | } |
1866 | } |
815 | #endif |
|
|
816 | |
1867 | |
817 | { |
1868 | if (o_reify & EV__IOFDSET) |
818 | unsigned char o_events = anfd->events; |
|
|
819 | unsigned char o_reify = anfd->reify; |
|
|
820 | |
|
|
821 | anfd->reify = 0; |
|
|
822 | anfd->events = events; |
|
|
823 | |
|
|
824 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
825 | backend_modify (EV_A_ fd, o_events, events); |
1869 | backend_modify (EV_A_ fd, o_events, anfd->events); |
826 | } |
|
|
827 | } |
1870 | } |
828 | |
1871 | |
829 | fdchangecnt = 0; |
1872 | fdchangecnt = 0; |
830 | } |
1873 | } |
831 | |
1874 | |
… | |
… | |
843 | fdchanges [fdchangecnt - 1] = fd; |
1886 | fdchanges [fdchangecnt - 1] = fd; |
844 | } |
1887 | } |
845 | } |
1888 | } |
846 | |
1889 | |
847 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1890 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
848 | inline_speed void |
1891 | inline_speed void ecb_cold |
849 | fd_kill (EV_P_ int fd) |
1892 | fd_kill (EV_P_ int fd) |
850 | { |
1893 | { |
851 | ev_io *w; |
1894 | ev_io *w; |
852 | |
1895 | |
853 | while ((w = (ev_io *)anfds [fd].head)) |
1896 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
855 | ev_io_stop (EV_A_ w); |
1898 | ev_io_stop (EV_A_ w); |
856 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1899 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
857 | } |
1900 | } |
858 | } |
1901 | } |
859 | |
1902 | |
860 | /* check whether the given fd is atcually valid, for error recovery */ |
1903 | /* check whether the given fd is actually valid, for error recovery */ |
861 | inline_size int |
1904 | inline_size int ecb_cold |
862 | fd_valid (int fd) |
1905 | fd_valid (int fd) |
863 | { |
1906 | { |
864 | #ifdef _WIN32 |
1907 | #ifdef _WIN32 |
865 | return _get_osfhandle (fd) != -1; |
1908 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
866 | #else |
1909 | #else |
867 | return fcntl (fd, F_GETFD) != -1; |
1910 | return fcntl (fd, F_GETFD) != -1; |
868 | #endif |
1911 | #endif |
869 | } |
1912 | } |
870 | |
1913 | |
871 | /* called on EBADF to verify fds */ |
1914 | /* called on EBADF to verify fds */ |
872 | static void noinline |
1915 | static void noinline ecb_cold |
873 | fd_ebadf (EV_P) |
1916 | fd_ebadf (EV_P) |
874 | { |
1917 | { |
875 | int fd; |
1918 | int fd; |
876 | |
1919 | |
877 | for (fd = 0; fd < anfdmax; ++fd) |
1920 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
879 | if (!fd_valid (fd) && errno == EBADF) |
1922 | if (!fd_valid (fd) && errno == EBADF) |
880 | fd_kill (EV_A_ fd); |
1923 | fd_kill (EV_A_ fd); |
881 | } |
1924 | } |
882 | |
1925 | |
883 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1926 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
884 | static void noinline |
1927 | static void noinline ecb_cold |
885 | fd_enomem (EV_P) |
1928 | fd_enomem (EV_P) |
886 | { |
1929 | { |
887 | int fd; |
1930 | int fd; |
888 | |
1931 | |
889 | for (fd = anfdmax; fd--; ) |
1932 | for (fd = anfdmax; fd--; ) |
890 | if (anfds [fd].events) |
1933 | if (anfds [fd].events) |
891 | { |
1934 | { |
892 | fd_kill (EV_A_ fd); |
1935 | fd_kill (EV_A_ fd); |
893 | return; |
1936 | break; |
894 | } |
1937 | } |
895 | } |
1938 | } |
896 | |
1939 | |
897 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1940 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
898 | static void noinline |
1941 | static void noinline |
… | |
… | |
903 | for (fd = 0; fd < anfdmax; ++fd) |
1946 | for (fd = 0; fd < anfdmax; ++fd) |
904 | if (anfds [fd].events) |
1947 | if (anfds [fd].events) |
905 | { |
1948 | { |
906 | anfds [fd].events = 0; |
1949 | anfds [fd].events = 0; |
907 | anfds [fd].emask = 0; |
1950 | anfds [fd].emask = 0; |
908 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1951 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
909 | } |
1952 | } |
910 | } |
1953 | } |
911 | |
1954 | |
|
|
1955 | /* used to prepare libev internal fd's */ |
|
|
1956 | /* this is not fork-safe */ |
|
|
1957 | inline_speed void |
|
|
1958 | fd_intern (int fd) |
|
|
1959 | { |
|
|
1960 | #ifdef _WIN32 |
|
|
1961 | unsigned long arg = 1; |
|
|
1962 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1963 | #else |
|
|
1964 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1965 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1966 | #endif |
|
|
1967 | } |
|
|
1968 | |
912 | /*****************************************************************************/ |
1969 | /*****************************************************************************/ |
913 | |
1970 | |
914 | /* |
1971 | /* |
915 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1972 | * the heap functions want a real array index. array index 0 is guaranteed to not |
916 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1973 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
917 | * the branching factor of the d-tree. |
1974 | * the branching factor of the d-tree. |
918 | */ |
1975 | */ |
919 | |
1976 | |
920 | /* |
1977 | /* |
… | |
… | |
988 | |
2045 | |
989 | for (;;) |
2046 | for (;;) |
990 | { |
2047 | { |
991 | int c = k << 1; |
2048 | int c = k << 1; |
992 | |
2049 | |
993 | if (c > N + HEAP0 - 1) |
2050 | if (c >= N + HEAP0) |
994 | break; |
2051 | break; |
995 | |
2052 | |
996 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
2053 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
997 | ? 1 : 0; |
2054 | ? 1 : 0; |
998 | |
2055 | |
… | |
… | |
1034 | |
2091 | |
1035 | /* move an element suitably so it is in a correct place */ |
2092 | /* move an element suitably so it is in a correct place */ |
1036 | inline_size void |
2093 | inline_size void |
1037 | adjustheap (ANHE *heap, int N, int k) |
2094 | adjustheap (ANHE *heap, int N, int k) |
1038 | { |
2095 | { |
1039 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
2096 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1040 | upheap (heap, k); |
2097 | upheap (heap, k); |
1041 | else |
2098 | else |
1042 | downheap (heap, N, k); |
2099 | downheap (heap, N, k); |
1043 | } |
2100 | } |
1044 | |
2101 | |
… | |
… | |
1057 | /*****************************************************************************/ |
2114 | /*****************************************************************************/ |
1058 | |
2115 | |
1059 | /* associate signal watchers to a signal signal */ |
2116 | /* associate signal watchers to a signal signal */ |
1060 | typedef struct |
2117 | typedef struct |
1061 | { |
2118 | { |
|
|
2119 | EV_ATOMIC_T pending; |
|
|
2120 | #if EV_MULTIPLICITY |
|
|
2121 | EV_P; |
|
|
2122 | #endif |
1062 | WL head; |
2123 | WL head; |
1063 | EV_ATOMIC_T gotsig; |
|
|
1064 | } ANSIG; |
2124 | } ANSIG; |
1065 | |
2125 | |
1066 | static ANSIG *signals; |
2126 | static ANSIG signals [EV_NSIG - 1]; |
1067 | static int signalmax; |
|
|
1068 | |
|
|
1069 | static EV_ATOMIC_T gotsig; |
|
|
1070 | |
2127 | |
1071 | /*****************************************************************************/ |
2128 | /*****************************************************************************/ |
1072 | |
2129 | |
1073 | /* used to prepare libev internal fd's */ |
2130 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1074 | /* this is not fork-safe */ |
2131 | |
|
|
2132 | static void noinline ecb_cold |
|
|
2133 | evpipe_init (EV_P) |
|
|
2134 | { |
|
|
2135 | if (!ev_is_active (&pipe_w)) |
|
|
2136 | { |
|
|
2137 | int fds [2]; |
|
|
2138 | |
|
|
2139 | # if EV_USE_EVENTFD |
|
|
2140 | fds [0] = -1; |
|
|
2141 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2142 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2143 | fds [1] = eventfd (0, 0); |
|
|
2144 | |
|
|
2145 | if (fds [1] < 0) |
|
|
2146 | # endif |
|
|
2147 | { |
|
|
2148 | while (pipe (fds)) |
|
|
2149 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2150 | |
|
|
2151 | fd_intern (fds [0]); |
|
|
2152 | } |
|
|
2153 | |
|
|
2154 | evpipe [0] = fds [0]; |
|
|
2155 | |
|
|
2156 | if (evpipe [1] < 0) |
|
|
2157 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2158 | else |
|
|
2159 | { |
|
|
2160 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2161 | /* so that evpipe_write can always rely on its value. */ |
|
|
2162 | /* this branch does not do anything sensible on windows, */ |
|
|
2163 | /* so must not be executed on windows */ |
|
|
2164 | |
|
|
2165 | dup2 (fds [1], evpipe [1]); |
|
|
2166 | close (fds [1]); |
|
|
2167 | } |
|
|
2168 | |
|
|
2169 | fd_intern (evpipe [1]); |
|
|
2170 | |
|
|
2171 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2172 | ev_io_start (EV_A_ &pipe_w); |
|
|
2173 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2174 | } |
|
|
2175 | } |
|
|
2176 | |
1075 | inline_speed void |
2177 | inline_speed void |
1076 | fd_intern (int fd) |
2178 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1077 | { |
2179 | { |
1078 | #ifdef _WIN32 |
2180 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1079 | unsigned long arg = 1; |
|
|
1080 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1081 | #else |
|
|
1082 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1083 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1084 | #endif |
|
|
1085 | } |
|
|
1086 | |
2181 | |
1087 | static void noinline |
2182 | if (expect_true (*flag)) |
1088 | evpipe_init (EV_P) |
2183 | return; |
1089 | { |
2184 | |
1090 | if (!ev_is_active (&pipe_w)) |
2185 | *flag = 1; |
|
|
2186 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2187 | |
|
|
2188 | pipe_write_skipped = 1; |
|
|
2189 | |
|
|
2190 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2191 | |
|
|
2192 | if (pipe_write_wanted) |
1091 | { |
2193 | { |
|
|
2194 | int old_errno; |
|
|
2195 | |
|
|
2196 | pipe_write_skipped = 0; |
|
|
2197 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2198 | |
|
|
2199 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2200 | |
1092 | #if EV_USE_EVENTFD |
2201 | #if EV_USE_EVENTFD |
1093 | if ((evfd = eventfd (0, 0)) >= 0) |
2202 | if (evpipe [0] < 0) |
1094 | { |
2203 | { |
1095 | evpipe [0] = -1; |
2204 | uint64_t counter = 1; |
1096 | fd_intern (evfd); |
2205 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1097 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1098 | } |
2206 | } |
1099 | else |
2207 | else |
1100 | #endif |
2208 | #endif |
1101 | { |
2209 | { |
1102 | while (pipe (evpipe)) |
2210 | #ifdef _WIN32 |
1103 | ev_syserr ("(libev) error creating signal/async pipe"); |
2211 | WSABUF buf; |
1104 | |
2212 | DWORD sent; |
1105 | fd_intern (evpipe [0]); |
2213 | buf.buf = &buf; |
1106 | fd_intern (evpipe [1]); |
2214 | buf.len = 1; |
1107 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2215 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2216 | #else |
|
|
2217 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2218 | #endif |
1108 | } |
2219 | } |
1109 | |
|
|
1110 | ev_io_start (EV_A_ &pipe_w); |
|
|
1111 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1112 | } |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | inline_size void |
|
|
1116 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1117 | { |
|
|
1118 | if (!*flag) |
|
|
1119 | { |
|
|
1120 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1121 | |
|
|
1122 | *flag = 1; |
|
|
1123 | |
|
|
1124 | #if EV_USE_EVENTFD |
|
|
1125 | if (evfd >= 0) |
|
|
1126 | { |
|
|
1127 | uint64_t counter = 1; |
|
|
1128 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1129 | } |
|
|
1130 | else |
|
|
1131 | #endif |
|
|
1132 | write (evpipe [1], &old_errno, 1); |
|
|
1133 | |
2220 | |
1134 | errno = old_errno; |
2221 | errno = old_errno; |
1135 | } |
2222 | } |
1136 | } |
2223 | } |
1137 | |
2224 | |
1138 | /* called whenever the libev signal pipe */ |
2225 | /* called whenever the libev signal pipe */ |
1139 | /* got some events (signal, async) */ |
2226 | /* got some events (signal, async) */ |
1140 | static void |
2227 | static void |
1141 | pipecb (EV_P_ ev_io *iow, int revents) |
2228 | pipecb (EV_P_ ev_io *iow, int revents) |
1142 | { |
2229 | { |
|
|
2230 | int i; |
|
|
2231 | |
|
|
2232 | if (revents & EV_READ) |
|
|
2233 | { |
1143 | #if EV_USE_EVENTFD |
2234 | #if EV_USE_EVENTFD |
1144 | if (evfd >= 0) |
2235 | if (evpipe [0] < 0) |
1145 | { |
2236 | { |
1146 | uint64_t counter; |
2237 | uint64_t counter; |
1147 | read (evfd, &counter, sizeof (uint64_t)); |
2238 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1148 | } |
2239 | } |
1149 | else |
2240 | else |
1150 | #endif |
2241 | #endif |
1151 | { |
2242 | { |
1152 | char dummy; |
2243 | char dummy[4]; |
|
|
2244 | #ifdef _WIN32 |
|
|
2245 | WSABUF buf; |
|
|
2246 | DWORD recvd; |
|
|
2247 | DWORD flags = 0; |
|
|
2248 | buf.buf = dummy; |
|
|
2249 | buf.len = sizeof (dummy); |
|
|
2250 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2251 | #else |
1153 | read (evpipe [0], &dummy, 1); |
2252 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2253 | #endif |
|
|
2254 | } |
|
|
2255 | } |
|
|
2256 | |
|
|
2257 | pipe_write_skipped = 0; |
|
|
2258 | |
|
|
2259 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2260 | |
|
|
2261 | #if EV_SIGNAL_ENABLE |
|
|
2262 | if (sig_pending) |
1154 | } |
2263 | { |
|
|
2264 | sig_pending = 0; |
1155 | |
2265 | |
1156 | if (gotsig && ev_is_default_loop (EV_A)) |
2266 | ECB_MEMORY_FENCE; |
1157 | { |
|
|
1158 | int signum; |
|
|
1159 | gotsig = 0; |
|
|
1160 | |
2267 | |
1161 | for (signum = signalmax; signum--; ) |
2268 | for (i = EV_NSIG - 1; i--; ) |
1162 | if (signals [signum].gotsig) |
2269 | if (expect_false (signals [i].pending)) |
1163 | ev_feed_signal_event (EV_A_ signum + 1); |
2270 | ev_feed_signal_event (EV_A_ i + 1); |
1164 | } |
2271 | } |
|
|
2272 | #endif |
1165 | |
2273 | |
1166 | #if EV_ASYNC_ENABLE |
2274 | #if EV_ASYNC_ENABLE |
1167 | if (gotasync) |
2275 | if (async_pending) |
1168 | { |
2276 | { |
1169 | int i; |
2277 | async_pending = 0; |
1170 | gotasync = 0; |
2278 | |
|
|
2279 | ECB_MEMORY_FENCE; |
1171 | |
2280 | |
1172 | for (i = asynccnt; i--; ) |
2281 | for (i = asynccnt; i--; ) |
1173 | if (asyncs [i]->sent) |
2282 | if (asyncs [i]->sent) |
1174 | { |
2283 | { |
1175 | asyncs [i]->sent = 0; |
2284 | asyncs [i]->sent = 0; |
|
|
2285 | ECB_MEMORY_FENCE_RELEASE; |
1176 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2286 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1177 | } |
2287 | } |
1178 | } |
2288 | } |
1179 | #endif |
2289 | #endif |
1180 | } |
2290 | } |
1181 | |
2291 | |
1182 | /*****************************************************************************/ |
2292 | /*****************************************************************************/ |
1183 | |
2293 | |
|
|
2294 | void |
|
|
2295 | ev_feed_signal (int signum) EV_THROW |
|
|
2296 | { |
|
|
2297 | #if EV_MULTIPLICITY |
|
|
2298 | EV_P; |
|
|
2299 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2300 | EV_A = signals [signum - 1].loop; |
|
|
2301 | |
|
|
2302 | if (!EV_A) |
|
|
2303 | return; |
|
|
2304 | #endif |
|
|
2305 | |
|
|
2306 | signals [signum - 1].pending = 1; |
|
|
2307 | evpipe_write (EV_A_ &sig_pending); |
|
|
2308 | } |
|
|
2309 | |
1184 | static void |
2310 | static void |
1185 | ev_sighandler (int signum) |
2311 | ev_sighandler (int signum) |
1186 | { |
2312 | { |
|
|
2313 | #ifdef _WIN32 |
|
|
2314 | signal (signum, ev_sighandler); |
|
|
2315 | #endif |
|
|
2316 | |
|
|
2317 | ev_feed_signal (signum); |
|
|
2318 | } |
|
|
2319 | |
|
|
2320 | void noinline |
|
|
2321 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
|
|
2322 | { |
|
|
2323 | WL w; |
|
|
2324 | |
|
|
2325 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
|
|
2326 | return; |
|
|
2327 | |
|
|
2328 | --signum; |
|
|
2329 | |
1187 | #if EV_MULTIPLICITY |
2330 | #if EV_MULTIPLICITY |
1188 | struct ev_loop *loop = &default_loop_struct; |
2331 | /* it is permissible to try to feed a signal to the wrong loop */ |
1189 | #endif |
2332 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1190 | |
2333 | |
1191 | #if _WIN32 |
2334 | if (expect_false (signals [signum].loop != EV_A)) |
1192 | signal (signum, ev_sighandler); |
|
|
1193 | #endif |
|
|
1194 | |
|
|
1195 | signals [signum - 1].gotsig = 1; |
|
|
1196 | evpipe_write (EV_A_ &gotsig); |
|
|
1197 | } |
|
|
1198 | |
|
|
1199 | void noinline |
|
|
1200 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1201 | { |
|
|
1202 | WL w; |
|
|
1203 | |
|
|
1204 | #if EV_MULTIPLICITY |
|
|
1205 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1206 | #endif |
|
|
1207 | |
|
|
1208 | --signum; |
|
|
1209 | |
|
|
1210 | if (signum < 0 || signum >= signalmax) |
|
|
1211 | return; |
2335 | return; |
|
|
2336 | #endif |
1212 | |
2337 | |
1213 | signals [signum].gotsig = 0; |
2338 | signals [signum].pending = 0; |
|
|
2339 | ECB_MEMORY_FENCE_RELEASE; |
1214 | |
2340 | |
1215 | for (w = signals [signum].head; w; w = w->next) |
2341 | for (w = signals [signum].head; w; w = w->next) |
1216 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2342 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1217 | } |
2343 | } |
1218 | |
2344 | |
|
|
2345 | #if EV_USE_SIGNALFD |
|
|
2346 | static void |
|
|
2347 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2348 | { |
|
|
2349 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2350 | |
|
|
2351 | for (;;) |
|
|
2352 | { |
|
|
2353 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2354 | |
|
|
2355 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2356 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2357 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2358 | |
|
|
2359 | if (res < (ssize_t)sizeof (si)) |
|
|
2360 | break; |
|
|
2361 | } |
|
|
2362 | } |
|
|
2363 | #endif |
|
|
2364 | |
|
|
2365 | #endif |
|
|
2366 | |
1219 | /*****************************************************************************/ |
2367 | /*****************************************************************************/ |
1220 | |
2368 | |
|
|
2369 | #if EV_CHILD_ENABLE |
1221 | static WL childs [EV_PID_HASHSIZE]; |
2370 | static WL childs [EV_PID_HASHSIZE]; |
1222 | |
|
|
1223 | #ifndef _WIN32 |
|
|
1224 | |
2371 | |
1225 | static ev_signal childev; |
2372 | static ev_signal childev; |
1226 | |
2373 | |
1227 | #ifndef WIFCONTINUED |
2374 | #ifndef WIFCONTINUED |
1228 | # define WIFCONTINUED(status) 0 |
2375 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1233 | child_reap (EV_P_ int chain, int pid, int status) |
2380 | child_reap (EV_P_ int chain, int pid, int status) |
1234 | { |
2381 | { |
1235 | ev_child *w; |
2382 | ev_child *w; |
1236 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2383 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1237 | |
2384 | |
1238 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2385 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1239 | { |
2386 | { |
1240 | if ((w->pid == pid || !w->pid) |
2387 | if ((w->pid == pid || !w->pid) |
1241 | && (!traced || (w->flags & 1))) |
2388 | && (!traced || (w->flags & 1))) |
1242 | { |
2389 | { |
1243 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2390 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1268 | /* make sure we are called again until all children have been reaped */ |
2415 | /* make sure we are called again until all children have been reaped */ |
1269 | /* we need to do it this way so that the callback gets called before we continue */ |
2416 | /* we need to do it this way so that the callback gets called before we continue */ |
1270 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2417 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1271 | |
2418 | |
1272 | child_reap (EV_A_ pid, pid, status); |
2419 | child_reap (EV_A_ pid, pid, status); |
1273 | if (EV_PID_HASHSIZE > 1) |
2420 | if ((EV_PID_HASHSIZE) > 1) |
1274 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2421 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1275 | } |
2422 | } |
1276 | |
2423 | |
1277 | #endif |
2424 | #endif |
1278 | |
2425 | |
1279 | /*****************************************************************************/ |
2426 | /*****************************************************************************/ |
1280 | |
2427 | |
|
|
2428 | #if EV_USE_IOCP |
|
|
2429 | # include "ev_iocp.c" |
|
|
2430 | #endif |
1281 | #if EV_USE_PORT |
2431 | #if EV_USE_PORT |
1282 | # include "ev_port.c" |
2432 | # include "ev_port.c" |
1283 | #endif |
2433 | #endif |
1284 | #if EV_USE_KQUEUE |
2434 | #if EV_USE_KQUEUE |
1285 | # include "ev_kqueue.c" |
2435 | # include "ev_kqueue.c" |
… | |
… | |
1292 | #endif |
2442 | #endif |
1293 | #if EV_USE_SELECT |
2443 | #if EV_USE_SELECT |
1294 | # include "ev_select.c" |
2444 | # include "ev_select.c" |
1295 | #endif |
2445 | #endif |
1296 | |
2446 | |
1297 | int |
2447 | int ecb_cold |
1298 | ev_version_major (void) |
2448 | ev_version_major (void) EV_THROW |
1299 | { |
2449 | { |
1300 | return EV_VERSION_MAJOR; |
2450 | return EV_VERSION_MAJOR; |
1301 | } |
2451 | } |
1302 | |
2452 | |
1303 | int |
2453 | int ecb_cold |
1304 | ev_version_minor (void) |
2454 | ev_version_minor (void) EV_THROW |
1305 | { |
2455 | { |
1306 | return EV_VERSION_MINOR; |
2456 | return EV_VERSION_MINOR; |
1307 | } |
2457 | } |
1308 | |
2458 | |
1309 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2459 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1310 | int inline_size |
2460 | int inline_size ecb_cold |
1311 | enable_secure (void) |
2461 | enable_secure (void) |
1312 | { |
2462 | { |
1313 | #ifdef _WIN32 |
2463 | #ifdef _WIN32 |
1314 | return 0; |
2464 | return 0; |
1315 | #else |
2465 | #else |
1316 | return getuid () != geteuid () |
2466 | return getuid () != geteuid () |
1317 | || getgid () != getegid (); |
2467 | || getgid () != getegid (); |
1318 | #endif |
2468 | #endif |
1319 | } |
2469 | } |
1320 | |
2470 | |
1321 | unsigned int |
2471 | unsigned int ecb_cold |
1322 | ev_supported_backends (void) |
2472 | ev_supported_backends (void) EV_THROW |
1323 | { |
2473 | { |
1324 | unsigned int flags = 0; |
2474 | unsigned int flags = 0; |
1325 | |
2475 | |
1326 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2476 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1327 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2477 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1330 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2480 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1331 | |
2481 | |
1332 | return flags; |
2482 | return flags; |
1333 | } |
2483 | } |
1334 | |
2484 | |
1335 | unsigned int |
2485 | unsigned int ecb_cold |
1336 | ev_recommended_backends (void) |
2486 | ev_recommended_backends (void) EV_THROW |
1337 | { |
2487 | { |
1338 | unsigned int flags = ev_supported_backends (); |
2488 | unsigned int flags = ev_supported_backends (); |
1339 | |
2489 | |
1340 | #ifndef __NetBSD__ |
2490 | #ifndef __NetBSD__ |
1341 | /* kqueue is borked on everything but netbsd apparently */ |
2491 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1345 | #ifdef __APPLE__ |
2495 | #ifdef __APPLE__ |
1346 | /* only select works correctly on that "unix-certified" platform */ |
2496 | /* only select works correctly on that "unix-certified" platform */ |
1347 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2497 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1348 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2498 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1349 | #endif |
2499 | #endif |
|
|
2500 | #ifdef __FreeBSD__ |
|
|
2501 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2502 | #endif |
1350 | |
2503 | |
1351 | return flags; |
2504 | return flags; |
1352 | } |
2505 | } |
1353 | |
2506 | |
|
|
2507 | unsigned int ecb_cold |
|
|
2508 | ev_embeddable_backends (void) EV_THROW |
|
|
2509 | { |
|
|
2510 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2511 | |
|
|
2512 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2513 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2514 | flags &= ~EVBACKEND_EPOLL; |
|
|
2515 | |
|
|
2516 | return flags; |
|
|
2517 | } |
|
|
2518 | |
1354 | unsigned int |
2519 | unsigned int |
1355 | ev_embeddable_backends (void) |
2520 | ev_backend (EV_P) EV_THROW |
1356 | { |
2521 | { |
1357 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2522 | return backend; |
1358 | |
|
|
1359 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1360 | /* please fix it and tell me how to detect the fix */ |
|
|
1361 | flags &= ~EVBACKEND_EPOLL; |
|
|
1362 | |
|
|
1363 | return flags; |
|
|
1364 | } |
2523 | } |
1365 | |
2524 | |
|
|
2525 | #if EV_FEATURE_API |
1366 | unsigned int |
2526 | unsigned int |
1367 | ev_backend (EV_P) |
2527 | ev_iteration (EV_P) EV_THROW |
1368 | { |
2528 | { |
1369 | return backend; |
2529 | return loop_count; |
1370 | } |
2530 | } |
1371 | |
2531 | |
1372 | #if EV_MINIMAL < 2 |
|
|
1373 | unsigned int |
2532 | unsigned int |
1374 | ev_loop_count (EV_P) |
2533 | ev_depth (EV_P) EV_THROW |
1375 | { |
|
|
1376 | return loop_count; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | unsigned int |
|
|
1380 | ev_loop_depth (EV_P) |
|
|
1381 | { |
2534 | { |
1382 | return loop_depth; |
2535 | return loop_depth; |
1383 | } |
2536 | } |
1384 | |
2537 | |
1385 | void |
2538 | void |
1386 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2539 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1387 | { |
2540 | { |
1388 | io_blocktime = interval; |
2541 | io_blocktime = interval; |
1389 | } |
2542 | } |
1390 | |
2543 | |
1391 | void |
2544 | void |
1392 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2545 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1393 | { |
2546 | { |
1394 | timeout_blocktime = interval; |
2547 | timeout_blocktime = interval; |
1395 | } |
2548 | } |
1396 | |
2549 | |
1397 | void |
2550 | void |
1398 | ev_set_userdata (EV_P_ void *data) |
2551 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1399 | { |
2552 | { |
1400 | userdata = data; |
2553 | userdata = data; |
1401 | } |
2554 | } |
1402 | |
2555 | |
1403 | void * |
2556 | void * |
1404 | ev_userdata (EV_P) |
2557 | ev_userdata (EV_P) EV_THROW |
1405 | { |
2558 | { |
1406 | return userdata; |
2559 | return userdata; |
1407 | } |
2560 | } |
1408 | |
2561 | |
|
|
2562 | void |
1409 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2563 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
1410 | { |
2564 | { |
1411 | invoke_cb = invoke_pending_cb; |
2565 | invoke_cb = invoke_pending_cb; |
1412 | } |
2566 | } |
1413 | |
2567 | |
1414 | void ev_set_blocking_cb (EV_P_ void (*suspend_cb_)(EV_P), void (*resume_cb_)(EV_P)) |
2568 | void |
|
|
2569 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
1415 | { |
2570 | { |
1416 | suspend_cb = suspend_cb_; |
2571 | release_cb = release; |
1417 | resume_cb = resume_cb_; |
2572 | acquire_cb = acquire; |
1418 | } |
2573 | } |
1419 | #endif |
2574 | #endif |
1420 | |
2575 | |
1421 | /* initialise a loop structure, must be zero-initialised */ |
2576 | /* initialise a loop structure, must be zero-initialised */ |
1422 | static void noinline |
2577 | static void noinline ecb_cold |
1423 | loop_init (EV_P_ unsigned int flags) |
2578 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1424 | { |
2579 | { |
1425 | if (!backend) |
2580 | if (!backend) |
1426 | { |
2581 | { |
|
|
2582 | origflags = flags; |
|
|
2583 | |
1427 | #if EV_USE_REALTIME |
2584 | #if EV_USE_REALTIME |
1428 | if (!have_realtime) |
2585 | if (!have_realtime) |
1429 | { |
2586 | { |
1430 | struct timespec ts; |
2587 | struct timespec ts; |
1431 | |
2588 | |
… | |
… | |
1442 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2599 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1443 | have_monotonic = 1; |
2600 | have_monotonic = 1; |
1444 | } |
2601 | } |
1445 | #endif |
2602 | #endif |
1446 | |
2603 | |
1447 | ev_rt_now = ev_time (); |
|
|
1448 | mn_now = get_clock (); |
|
|
1449 | now_floor = mn_now; |
|
|
1450 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1451 | #if EV_MINIMAL < 2 |
|
|
1452 | invoke_cb = ev_invoke_pending; |
|
|
1453 | #endif |
|
|
1454 | |
|
|
1455 | io_blocktime = 0.; |
|
|
1456 | timeout_blocktime = 0.; |
|
|
1457 | backend = 0; |
|
|
1458 | backend_fd = -1; |
|
|
1459 | gotasync = 0; |
|
|
1460 | #if EV_USE_INOTIFY |
|
|
1461 | fs_fd = -2; |
|
|
1462 | #endif |
|
|
1463 | |
|
|
1464 | /* pid check not overridable via env */ |
2604 | /* pid check not overridable via env */ |
1465 | #ifndef _WIN32 |
2605 | #ifndef _WIN32 |
1466 | if (flags & EVFLAG_FORKCHECK) |
2606 | if (flags & EVFLAG_FORKCHECK) |
1467 | curpid = getpid (); |
2607 | curpid = getpid (); |
1468 | #endif |
2608 | #endif |
… | |
… | |
1470 | if (!(flags & EVFLAG_NOENV) |
2610 | if (!(flags & EVFLAG_NOENV) |
1471 | && !enable_secure () |
2611 | && !enable_secure () |
1472 | && getenv ("LIBEV_FLAGS")) |
2612 | && getenv ("LIBEV_FLAGS")) |
1473 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2613 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1474 | |
2614 | |
1475 | if (!(flags & 0x0000ffffU)) |
2615 | ev_rt_now = ev_time (); |
|
|
2616 | mn_now = get_clock (); |
|
|
2617 | now_floor = mn_now; |
|
|
2618 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2619 | #if EV_FEATURE_API |
|
|
2620 | invoke_cb = ev_invoke_pending; |
|
|
2621 | #endif |
|
|
2622 | |
|
|
2623 | io_blocktime = 0.; |
|
|
2624 | timeout_blocktime = 0.; |
|
|
2625 | backend = 0; |
|
|
2626 | backend_fd = -1; |
|
|
2627 | sig_pending = 0; |
|
|
2628 | #if EV_ASYNC_ENABLE |
|
|
2629 | async_pending = 0; |
|
|
2630 | #endif |
|
|
2631 | pipe_write_skipped = 0; |
|
|
2632 | pipe_write_wanted = 0; |
|
|
2633 | evpipe [0] = -1; |
|
|
2634 | evpipe [1] = -1; |
|
|
2635 | #if EV_USE_INOTIFY |
|
|
2636 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2637 | #endif |
|
|
2638 | #if EV_USE_SIGNALFD |
|
|
2639 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2640 | #endif |
|
|
2641 | |
|
|
2642 | if (!(flags & EVBACKEND_MASK)) |
1476 | flags |= ev_recommended_backends (); |
2643 | flags |= ev_recommended_backends (); |
1477 | |
2644 | |
|
|
2645 | #if EV_USE_IOCP |
|
|
2646 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2647 | #endif |
1478 | #if EV_USE_PORT |
2648 | #if EV_USE_PORT |
1479 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2649 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1480 | #endif |
2650 | #endif |
1481 | #if EV_USE_KQUEUE |
2651 | #if EV_USE_KQUEUE |
1482 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2652 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1491 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2661 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1492 | #endif |
2662 | #endif |
1493 | |
2663 | |
1494 | ev_prepare_init (&pending_w, pendingcb); |
2664 | ev_prepare_init (&pending_w, pendingcb); |
1495 | |
2665 | |
|
|
2666 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1496 | ev_init (&pipe_w, pipecb); |
2667 | ev_init (&pipe_w, pipecb); |
1497 | ev_set_priority (&pipe_w, EV_MAXPRI); |
2668 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2669 | #endif |
1498 | } |
2670 | } |
1499 | } |
2671 | } |
1500 | |
2672 | |
1501 | /* free up a loop structure */ |
2673 | /* free up a loop structure */ |
1502 | static void noinline |
2674 | void ecb_cold |
1503 | loop_destroy (EV_P) |
2675 | ev_loop_destroy (EV_P) |
1504 | { |
2676 | { |
1505 | int i; |
2677 | int i; |
1506 | |
2678 | |
|
|
2679 | #if EV_MULTIPLICITY |
|
|
2680 | /* mimic free (0) */ |
|
|
2681 | if (!EV_A) |
|
|
2682 | return; |
|
|
2683 | #endif |
|
|
2684 | |
|
|
2685 | #if EV_CLEANUP_ENABLE |
|
|
2686 | /* queue cleanup watchers (and execute them) */ |
|
|
2687 | if (expect_false (cleanupcnt)) |
|
|
2688 | { |
|
|
2689 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2690 | EV_INVOKE_PENDING; |
|
|
2691 | } |
|
|
2692 | #endif |
|
|
2693 | |
|
|
2694 | #if EV_CHILD_ENABLE |
|
|
2695 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2696 | { |
|
|
2697 | ev_ref (EV_A); /* child watcher */ |
|
|
2698 | ev_signal_stop (EV_A_ &childev); |
|
|
2699 | } |
|
|
2700 | #endif |
|
|
2701 | |
1507 | if (ev_is_active (&pipe_w)) |
2702 | if (ev_is_active (&pipe_w)) |
1508 | { |
2703 | { |
1509 | ev_ref (EV_A); /* signal watcher */ |
2704 | /*ev_ref (EV_A);*/ |
1510 | ev_io_stop (EV_A_ &pipe_w); |
2705 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1511 | |
2706 | |
|
|
2707 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2708 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2709 | } |
|
|
2710 | |
1512 | #if EV_USE_EVENTFD |
2711 | #if EV_USE_SIGNALFD |
1513 | if (evfd >= 0) |
2712 | if (ev_is_active (&sigfd_w)) |
1514 | close (evfd); |
2713 | close (sigfd); |
1515 | #endif |
2714 | #endif |
1516 | |
|
|
1517 | if (evpipe [0] >= 0) |
|
|
1518 | { |
|
|
1519 | close (evpipe [0]); |
|
|
1520 | close (evpipe [1]); |
|
|
1521 | } |
|
|
1522 | } |
|
|
1523 | |
2715 | |
1524 | #if EV_USE_INOTIFY |
2716 | #if EV_USE_INOTIFY |
1525 | if (fs_fd >= 0) |
2717 | if (fs_fd >= 0) |
1526 | close (fs_fd); |
2718 | close (fs_fd); |
1527 | #endif |
2719 | #endif |
1528 | |
2720 | |
1529 | if (backend_fd >= 0) |
2721 | if (backend_fd >= 0) |
1530 | close (backend_fd); |
2722 | close (backend_fd); |
1531 | |
2723 | |
|
|
2724 | #if EV_USE_IOCP |
|
|
2725 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2726 | #endif |
1532 | #if EV_USE_PORT |
2727 | #if EV_USE_PORT |
1533 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2728 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1534 | #endif |
2729 | #endif |
1535 | #if EV_USE_KQUEUE |
2730 | #if EV_USE_KQUEUE |
1536 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2731 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1551 | #if EV_IDLE_ENABLE |
2746 | #if EV_IDLE_ENABLE |
1552 | array_free (idle, [i]); |
2747 | array_free (idle, [i]); |
1553 | #endif |
2748 | #endif |
1554 | } |
2749 | } |
1555 | |
2750 | |
1556 | ev_free (anfds); anfdmax = 0; |
2751 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1557 | |
2752 | |
1558 | /* have to use the microsoft-never-gets-it-right macro */ |
2753 | /* have to use the microsoft-never-gets-it-right macro */ |
1559 | array_free (rfeed, EMPTY); |
2754 | array_free (rfeed, EMPTY); |
1560 | array_free (fdchange, EMPTY); |
2755 | array_free (fdchange, EMPTY); |
1561 | array_free (timer, EMPTY); |
2756 | array_free (timer, EMPTY); |
… | |
… | |
1563 | array_free (periodic, EMPTY); |
2758 | array_free (periodic, EMPTY); |
1564 | #endif |
2759 | #endif |
1565 | #if EV_FORK_ENABLE |
2760 | #if EV_FORK_ENABLE |
1566 | array_free (fork, EMPTY); |
2761 | array_free (fork, EMPTY); |
1567 | #endif |
2762 | #endif |
|
|
2763 | #if EV_CLEANUP_ENABLE |
|
|
2764 | array_free (cleanup, EMPTY); |
|
|
2765 | #endif |
1568 | array_free (prepare, EMPTY); |
2766 | array_free (prepare, EMPTY); |
1569 | array_free (check, EMPTY); |
2767 | array_free (check, EMPTY); |
1570 | #if EV_ASYNC_ENABLE |
2768 | #if EV_ASYNC_ENABLE |
1571 | array_free (async, EMPTY); |
2769 | array_free (async, EMPTY); |
1572 | #endif |
2770 | #endif |
1573 | |
2771 | |
1574 | backend = 0; |
2772 | backend = 0; |
|
|
2773 | |
|
|
2774 | #if EV_MULTIPLICITY |
|
|
2775 | if (ev_is_default_loop (EV_A)) |
|
|
2776 | #endif |
|
|
2777 | ev_default_loop_ptr = 0; |
|
|
2778 | #if EV_MULTIPLICITY |
|
|
2779 | else |
|
|
2780 | ev_free (EV_A); |
|
|
2781 | #endif |
1575 | } |
2782 | } |
1576 | |
2783 | |
1577 | #if EV_USE_INOTIFY |
2784 | #if EV_USE_INOTIFY |
1578 | inline_size void infy_fork (EV_P); |
2785 | inline_size void infy_fork (EV_P); |
1579 | #endif |
2786 | #endif |
… | |
… | |
1592 | #endif |
2799 | #endif |
1593 | #if EV_USE_INOTIFY |
2800 | #if EV_USE_INOTIFY |
1594 | infy_fork (EV_A); |
2801 | infy_fork (EV_A); |
1595 | #endif |
2802 | #endif |
1596 | |
2803 | |
|
|
2804 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1597 | if (ev_is_active (&pipe_w)) |
2805 | if (ev_is_active (&pipe_w)) |
1598 | { |
2806 | { |
1599 | /* this "locks" the handlers against writing to the pipe */ |
2807 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1600 | /* while we modify the fd vars */ |
|
|
1601 | gotsig = 1; |
|
|
1602 | #if EV_ASYNC_ENABLE |
|
|
1603 | gotasync = 1; |
|
|
1604 | #endif |
|
|
1605 | |
2808 | |
1606 | ev_ref (EV_A); |
2809 | ev_ref (EV_A); |
1607 | ev_io_stop (EV_A_ &pipe_w); |
2810 | ev_io_stop (EV_A_ &pipe_w); |
1608 | |
2811 | |
1609 | #if EV_USE_EVENTFD |
|
|
1610 | if (evfd >= 0) |
|
|
1611 | close (evfd); |
|
|
1612 | #endif |
|
|
1613 | |
|
|
1614 | if (evpipe [0] >= 0) |
2812 | if (evpipe [0] >= 0) |
1615 | { |
2813 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1616 | close (evpipe [0]); |
|
|
1617 | close (evpipe [1]); |
|
|
1618 | } |
|
|
1619 | |
2814 | |
1620 | evpipe_init (EV_A); |
2815 | evpipe_init (EV_A); |
1621 | /* now iterate over everything, in case we missed something */ |
2816 | /* iterate over everything, in case we missed something before */ |
1622 | pipecb (EV_A_ &pipe_w, EV_READ); |
2817 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1623 | } |
2818 | } |
|
|
2819 | #endif |
1624 | |
2820 | |
1625 | postfork = 0; |
2821 | postfork = 0; |
1626 | } |
2822 | } |
1627 | |
2823 | |
1628 | #if EV_MULTIPLICITY |
2824 | #if EV_MULTIPLICITY |
1629 | |
2825 | |
1630 | struct ev_loop * |
2826 | struct ev_loop * ecb_cold |
1631 | ev_loop_new (unsigned int flags) |
2827 | ev_loop_new (unsigned int flags) EV_THROW |
1632 | { |
2828 | { |
1633 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2829 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1634 | |
2830 | |
1635 | memset (loop, 0, sizeof (struct ev_loop)); |
2831 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1636 | |
|
|
1637 | loop_init (EV_A_ flags); |
2832 | loop_init (EV_A_ flags); |
1638 | |
2833 | |
1639 | if (ev_backend (EV_A)) |
2834 | if (ev_backend (EV_A)) |
1640 | return loop; |
2835 | return EV_A; |
1641 | |
2836 | |
|
|
2837 | ev_free (EV_A); |
1642 | return 0; |
2838 | return 0; |
1643 | } |
2839 | } |
1644 | |
2840 | |
1645 | void |
|
|
1646 | ev_loop_destroy (EV_P) |
|
|
1647 | { |
|
|
1648 | loop_destroy (EV_A); |
|
|
1649 | ev_free (loop); |
|
|
1650 | } |
|
|
1651 | |
|
|
1652 | void |
|
|
1653 | ev_loop_fork (EV_P) |
|
|
1654 | { |
|
|
1655 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1656 | } |
|
|
1657 | #endif /* multiplicity */ |
2841 | #endif /* multiplicity */ |
1658 | |
2842 | |
1659 | #if EV_VERIFY |
2843 | #if EV_VERIFY |
1660 | static void noinline |
2844 | static void noinline ecb_cold |
1661 | verify_watcher (EV_P_ W w) |
2845 | verify_watcher (EV_P_ W w) |
1662 | { |
2846 | { |
1663 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2847 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1664 | |
2848 | |
1665 | if (w->pending) |
2849 | if (w->pending) |
1666 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2850 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1667 | } |
2851 | } |
1668 | |
2852 | |
1669 | static void noinline |
2853 | static void noinline ecb_cold |
1670 | verify_heap (EV_P_ ANHE *heap, int N) |
2854 | verify_heap (EV_P_ ANHE *heap, int N) |
1671 | { |
2855 | { |
1672 | int i; |
2856 | int i; |
1673 | |
2857 | |
1674 | for (i = HEAP0; i < N + HEAP0; ++i) |
2858 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1679 | |
2863 | |
1680 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2864 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1681 | } |
2865 | } |
1682 | } |
2866 | } |
1683 | |
2867 | |
1684 | static void noinline |
2868 | static void noinline ecb_cold |
1685 | array_verify (EV_P_ W *ws, int cnt) |
2869 | array_verify (EV_P_ W *ws, int cnt) |
1686 | { |
2870 | { |
1687 | while (cnt--) |
2871 | while (cnt--) |
1688 | { |
2872 | { |
1689 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2873 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1690 | verify_watcher (EV_A_ ws [cnt]); |
2874 | verify_watcher (EV_A_ ws [cnt]); |
1691 | } |
2875 | } |
1692 | } |
2876 | } |
1693 | #endif |
2877 | #endif |
1694 | |
2878 | |
1695 | #if EV_MINIMAL < 2 |
2879 | #if EV_FEATURE_API |
1696 | void |
2880 | void ecb_cold |
1697 | ev_loop_verify (EV_P) |
2881 | ev_verify (EV_P) EV_THROW |
1698 | { |
2882 | { |
1699 | #if EV_VERIFY |
2883 | #if EV_VERIFY |
1700 | int i; |
2884 | int i; |
1701 | WL w; |
2885 | WL w, w2; |
1702 | |
2886 | |
1703 | assert (activecnt >= -1); |
2887 | assert (activecnt >= -1); |
1704 | |
2888 | |
1705 | assert (fdchangemax >= fdchangecnt); |
2889 | assert (fdchangemax >= fdchangecnt); |
1706 | for (i = 0; i < fdchangecnt; ++i) |
2890 | for (i = 0; i < fdchangecnt; ++i) |
1707 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2891 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1708 | |
2892 | |
1709 | assert (anfdmax >= 0); |
2893 | assert (anfdmax >= 0); |
1710 | for (i = 0; i < anfdmax; ++i) |
2894 | for (i = 0; i < anfdmax; ++i) |
|
|
2895 | { |
|
|
2896 | int j = 0; |
|
|
2897 | |
1711 | for (w = anfds [i].head; w; w = w->next) |
2898 | for (w = w2 = anfds [i].head; w; w = w->next) |
1712 | { |
2899 | { |
1713 | verify_watcher (EV_A_ (W)w); |
2900 | verify_watcher (EV_A_ (W)w); |
|
|
2901 | |
|
|
2902 | if (j++ & 1) |
|
|
2903 | { |
|
|
2904 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2905 | w2 = w2->next; |
|
|
2906 | } |
|
|
2907 | |
1714 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2908 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1715 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2909 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1716 | } |
2910 | } |
|
|
2911 | } |
1717 | |
2912 | |
1718 | assert (timermax >= timercnt); |
2913 | assert (timermax >= timercnt); |
1719 | verify_heap (EV_A_ timers, timercnt); |
2914 | verify_heap (EV_A_ timers, timercnt); |
1720 | |
2915 | |
1721 | #if EV_PERIODIC_ENABLE |
2916 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1736 | #if EV_FORK_ENABLE |
2931 | #if EV_FORK_ENABLE |
1737 | assert (forkmax >= forkcnt); |
2932 | assert (forkmax >= forkcnt); |
1738 | array_verify (EV_A_ (W *)forks, forkcnt); |
2933 | array_verify (EV_A_ (W *)forks, forkcnt); |
1739 | #endif |
2934 | #endif |
1740 | |
2935 | |
|
|
2936 | #if EV_CLEANUP_ENABLE |
|
|
2937 | assert (cleanupmax >= cleanupcnt); |
|
|
2938 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2939 | #endif |
|
|
2940 | |
1741 | #if EV_ASYNC_ENABLE |
2941 | #if EV_ASYNC_ENABLE |
1742 | assert (asyncmax >= asynccnt); |
2942 | assert (asyncmax >= asynccnt); |
1743 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2943 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1744 | #endif |
2944 | #endif |
1745 | |
2945 | |
|
|
2946 | #if EV_PREPARE_ENABLE |
1746 | assert (preparemax >= preparecnt); |
2947 | assert (preparemax >= preparecnt); |
1747 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2948 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2949 | #endif |
1748 | |
2950 | |
|
|
2951 | #if EV_CHECK_ENABLE |
1749 | assert (checkmax >= checkcnt); |
2952 | assert (checkmax >= checkcnt); |
1750 | array_verify (EV_A_ (W *)checks, checkcnt); |
2953 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2954 | #endif |
1751 | |
2955 | |
1752 | # if 0 |
2956 | # if 0 |
|
|
2957 | #if EV_CHILD_ENABLE |
1753 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2958 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1754 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2959 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2960 | #endif |
1755 | # endif |
2961 | # endif |
1756 | #endif |
2962 | #endif |
1757 | } |
2963 | } |
1758 | #endif |
2964 | #endif |
1759 | |
2965 | |
1760 | #if EV_MULTIPLICITY |
2966 | #if EV_MULTIPLICITY |
1761 | struct ev_loop * |
2967 | struct ev_loop * ecb_cold |
1762 | ev_default_loop_init (unsigned int flags) |
|
|
1763 | #else |
2968 | #else |
1764 | int |
2969 | int |
|
|
2970 | #endif |
1765 | ev_default_loop (unsigned int flags) |
2971 | ev_default_loop (unsigned int flags) EV_THROW |
1766 | #endif |
|
|
1767 | { |
2972 | { |
1768 | if (!ev_default_loop_ptr) |
2973 | if (!ev_default_loop_ptr) |
1769 | { |
2974 | { |
1770 | #if EV_MULTIPLICITY |
2975 | #if EV_MULTIPLICITY |
1771 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2976 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1772 | #else |
2977 | #else |
1773 | ev_default_loop_ptr = 1; |
2978 | ev_default_loop_ptr = 1; |
1774 | #endif |
2979 | #endif |
1775 | |
2980 | |
1776 | loop_init (EV_A_ flags); |
2981 | loop_init (EV_A_ flags); |
1777 | |
2982 | |
1778 | if (ev_backend (EV_A)) |
2983 | if (ev_backend (EV_A)) |
1779 | { |
2984 | { |
1780 | #ifndef _WIN32 |
2985 | #if EV_CHILD_ENABLE |
1781 | ev_signal_init (&childev, childcb, SIGCHLD); |
2986 | ev_signal_init (&childev, childcb, SIGCHLD); |
1782 | ev_set_priority (&childev, EV_MAXPRI); |
2987 | ev_set_priority (&childev, EV_MAXPRI); |
1783 | ev_signal_start (EV_A_ &childev); |
2988 | ev_signal_start (EV_A_ &childev); |
1784 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2989 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1785 | #endif |
2990 | #endif |
… | |
… | |
1790 | |
2995 | |
1791 | return ev_default_loop_ptr; |
2996 | return ev_default_loop_ptr; |
1792 | } |
2997 | } |
1793 | |
2998 | |
1794 | void |
2999 | void |
1795 | ev_default_destroy (void) |
3000 | ev_loop_fork (EV_P) EV_THROW |
1796 | { |
3001 | { |
1797 | #if EV_MULTIPLICITY |
3002 | postfork = 1; |
1798 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1799 | #endif |
|
|
1800 | |
|
|
1801 | ev_default_loop_ptr = 0; |
|
|
1802 | |
|
|
1803 | #ifndef _WIN32 |
|
|
1804 | ev_ref (EV_A); /* child watcher */ |
|
|
1805 | ev_signal_stop (EV_A_ &childev); |
|
|
1806 | #endif |
|
|
1807 | |
|
|
1808 | loop_destroy (EV_A); |
|
|
1809 | } |
|
|
1810 | |
|
|
1811 | void |
|
|
1812 | ev_default_fork (void) |
|
|
1813 | { |
|
|
1814 | #if EV_MULTIPLICITY |
|
|
1815 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1816 | #endif |
|
|
1817 | |
|
|
1818 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1819 | } |
3003 | } |
1820 | |
3004 | |
1821 | /*****************************************************************************/ |
3005 | /*****************************************************************************/ |
1822 | |
3006 | |
1823 | void |
3007 | void |
1824 | ev_invoke (EV_P_ void *w, int revents) |
3008 | ev_invoke (EV_P_ void *w, int revents) |
1825 | { |
3009 | { |
1826 | EV_CB_INVOKE ((W)w, revents); |
3010 | EV_CB_INVOKE ((W)w, revents); |
1827 | } |
3011 | } |
1828 | |
3012 | |
|
|
3013 | unsigned int |
|
|
3014 | ev_pending_count (EV_P) EV_THROW |
|
|
3015 | { |
|
|
3016 | int pri; |
|
|
3017 | unsigned int count = 0; |
|
|
3018 | |
|
|
3019 | for (pri = NUMPRI; pri--; ) |
|
|
3020 | count += pendingcnt [pri]; |
|
|
3021 | |
|
|
3022 | return count; |
|
|
3023 | } |
|
|
3024 | |
1829 | void noinline |
3025 | void noinline |
1830 | ev_invoke_pending (EV_P) |
3026 | ev_invoke_pending (EV_P) |
1831 | { |
3027 | { |
1832 | int pri; |
3028 | pendingpri = NUMPRI; |
1833 | |
3029 | |
1834 | for (pri = NUMPRI; pri--; ) |
3030 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3031 | { |
|
|
3032 | --pendingpri; |
|
|
3033 | |
1835 | while (pendingcnt [pri]) |
3034 | while (pendingcnt [pendingpri]) |
1836 | { |
3035 | { |
1837 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3036 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1838 | |
3037 | |
1839 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1840 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1841 | |
|
|
1842 | p->w->pending = 0; |
3038 | p->w->pending = 0; |
1843 | EV_CB_INVOKE (p->w, p->events); |
3039 | EV_CB_INVOKE (p->w, p->events); |
1844 | EV_FREQUENT_CHECK; |
3040 | EV_FREQUENT_CHECK; |
1845 | } |
3041 | } |
|
|
3042 | } |
1846 | } |
3043 | } |
1847 | |
3044 | |
1848 | #if EV_IDLE_ENABLE |
3045 | #if EV_IDLE_ENABLE |
1849 | /* make idle watchers pending. this handles the "call-idle */ |
3046 | /* make idle watchers pending. this handles the "call-idle */ |
1850 | /* only when higher priorities are idle" logic */ |
3047 | /* only when higher priorities are idle" logic */ |
… | |
… | |
1902 | EV_FREQUENT_CHECK; |
3099 | EV_FREQUENT_CHECK; |
1903 | feed_reverse (EV_A_ (W)w); |
3100 | feed_reverse (EV_A_ (W)w); |
1904 | } |
3101 | } |
1905 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3102 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1906 | |
3103 | |
1907 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3104 | feed_reverse_done (EV_A_ EV_TIMER); |
1908 | } |
3105 | } |
1909 | } |
3106 | } |
1910 | |
3107 | |
1911 | #if EV_PERIODIC_ENABLE |
3108 | #if EV_PERIODIC_ENABLE |
|
|
3109 | |
|
|
3110 | static void noinline |
|
|
3111 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3112 | { |
|
|
3113 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3114 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3115 | |
|
|
3116 | /* the above almost always errs on the low side */ |
|
|
3117 | while (at <= ev_rt_now) |
|
|
3118 | { |
|
|
3119 | ev_tstamp nat = at + w->interval; |
|
|
3120 | |
|
|
3121 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3122 | if (expect_false (nat == at)) |
|
|
3123 | { |
|
|
3124 | at = ev_rt_now; |
|
|
3125 | break; |
|
|
3126 | } |
|
|
3127 | |
|
|
3128 | at = nat; |
|
|
3129 | } |
|
|
3130 | |
|
|
3131 | ev_at (w) = at; |
|
|
3132 | } |
|
|
3133 | |
1912 | /* make periodics pending */ |
3134 | /* make periodics pending */ |
1913 | inline_size void |
3135 | inline_size void |
1914 | periodics_reify (EV_P) |
3136 | periodics_reify (EV_P) |
1915 | { |
3137 | { |
1916 | EV_FREQUENT_CHECK; |
3138 | EV_FREQUENT_CHECK; |
1917 | |
3139 | |
1918 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3140 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1919 | { |
3141 | { |
1920 | int feed_count = 0; |
|
|
1921 | |
|
|
1922 | do |
3142 | do |
1923 | { |
3143 | { |
1924 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3144 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1925 | |
3145 | |
1926 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3146 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
1935 | ANHE_at_cache (periodics [HEAP0]); |
3155 | ANHE_at_cache (periodics [HEAP0]); |
1936 | downheap (periodics, periodiccnt, HEAP0); |
3156 | downheap (periodics, periodiccnt, HEAP0); |
1937 | } |
3157 | } |
1938 | else if (w->interval) |
3158 | else if (w->interval) |
1939 | { |
3159 | { |
1940 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3160 | periodic_recalc (EV_A_ w); |
1941 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1942 | /* this might happen because of floating point inexactness */ |
|
|
1943 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1944 | { |
|
|
1945 | ev_at (w) += w->interval; |
|
|
1946 | |
|
|
1947 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1948 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1949 | /* has effectively asked to get triggered more often than possible */ |
|
|
1950 | if (ev_at (w) < ev_rt_now) |
|
|
1951 | ev_at (w) = ev_rt_now; |
|
|
1952 | } |
|
|
1953 | |
|
|
1954 | ANHE_at_cache (periodics [HEAP0]); |
3161 | ANHE_at_cache (periodics [HEAP0]); |
1955 | downheap (periodics, periodiccnt, HEAP0); |
3162 | downheap (periodics, periodiccnt, HEAP0); |
1956 | } |
3163 | } |
1957 | else |
3164 | else |
1958 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3165 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
1965 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3172 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1966 | } |
3173 | } |
1967 | } |
3174 | } |
1968 | |
3175 | |
1969 | /* simply recalculate all periodics */ |
3176 | /* simply recalculate all periodics */ |
1970 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3177 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1971 | static void noinline |
3178 | static void noinline ecb_cold |
1972 | periodics_reschedule (EV_P) |
3179 | periodics_reschedule (EV_P) |
1973 | { |
3180 | { |
1974 | int i; |
3181 | int i; |
1975 | |
3182 | |
1976 | /* adjust periodics after time jump */ |
3183 | /* adjust periodics after time jump */ |
… | |
… | |
1979 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3186 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1980 | |
3187 | |
1981 | if (w->reschedule_cb) |
3188 | if (w->reschedule_cb) |
1982 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3189 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1983 | else if (w->interval) |
3190 | else if (w->interval) |
1984 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3191 | periodic_recalc (EV_A_ w); |
1985 | |
3192 | |
1986 | ANHE_at_cache (periodics [i]); |
3193 | ANHE_at_cache (periodics [i]); |
1987 | } |
3194 | } |
1988 | |
3195 | |
1989 | reheap (periodics, periodiccnt); |
3196 | reheap (periodics, periodiccnt); |
1990 | } |
3197 | } |
1991 | #endif |
3198 | #endif |
1992 | |
3199 | |
1993 | /* adjust all timers by a given offset */ |
3200 | /* adjust all timers by a given offset */ |
1994 | static void noinline |
3201 | static void noinline ecb_cold |
1995 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3202 | timers_reschedule (EV_P_ ev_tstamp adjust) |
1996 | { |
3203 | { |
1997 | int i; |
3204 | int i; |
1998 | |
3205 | |
1999 | for (i = 0; i < timercnt; ++i) |
3206 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2003 | ANHE_at_cache (*he); |
3210 | ANHE_at_cache (*he); |
2004 | } |
3211 | } |
2005 | } |
3212 | } |
2006 | |
3213 | |
2007 | /* fetch new monotonic and realtime times from the kernel */ |
3214 | /* fetch new monotonic and realtime times from the kernel */ |
2008 | /* also detetc if there was a timejump, and act accordingly */ |
3215 | /* also detect if there was a timejump, and act accordingly */ |
2009 | inline_speed void |
3216 | inline_speed void |
2010 | time_update (EV_P_ ev_tstamp max_block) |
3217 | time_update (EV_P_ ev_tstamp max_block) |
2011 | { |
3218 | { |
2012 | #if EV_USE_MONOTONIC |
3219 | #if EV_USE_MONOTONIC |
2013 | if (expect_true (have_monotonic)) |
3220 | if (expect_true (have_monotonic)) |
… | |
… | |
2036 | * doesn't hurt either as we only do this on time-jumps or |
3243 | * doesn't hurt either as we only do this on time-jumps or |
2037 | * in the unlikely event of having been preempted here. |
3244 | * in the unlikely event of having been preempted here. |
2038 | */ |
3245 | */ |
2039 | for (i = 4; --i; ) |
3246 | for (i = 4; --i; ) |
2040 | { |
3247 | { |
|
|
3248 | ev_tstamp diff; |
2041 | rtmn_diff = ev_rt_now - mn_now; |
3249 | rtmn_diff = ev_rt_now - mn_now; |
2042 | |
3250 | |
|
|
3251 | diff = odiff - rtmn_diff; |
|
|
3252 | |
2043 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3253 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2044 | return; /* all is well */ |
3254 | return; /* all is well */ |
2045 | |
3255 | |
2046 | ev_rt_now = ev_time (); |
3256 | ev_rt_now = ev_time (); |
2047 | mn_now = get_clock (); |
3257 | mn_now = get_clock (); |
2048 | now_floor = mn_now; |
3258 | now_floor = mn_now; |
… | |
… | |
2070 | |
3280 | |
2071 | mn_now = ev_rt_now; |
3281 | mn_now = ev_rt_now; |
2072 | } |
3282 | } |
2073 | } |
3283 | } |
2074 | |
3284 | |
2075 | void |
3285 | int |
2076 | ev_loop (EV_P_ int flags) |
3286 | ev_run (EV_P_ int flags) |
2077 | { |
3287 | { |
2078 | #if EV_MINIMAL < 2 |
3288 | #if EV_FEATURE_API |
2079 | ++loop_depth; |
3289 | ++loop_depth; |
2080 | #endif |
3290 | #endif |
2081 | |
3291 | |
|
|
3292 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3293 | |
2082 | loop_done = EVUNLOOP_CANCEL; |
3294 | loop_done = EVBREAK_CANCEL; |
2083 | |
3295 | |
2084 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3296 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2085 | |
3297 | |
2086 | do |
3298 | do |
2087 | { |
3299 | { |
2088 | #if EV_VERIFY >= 2 |
3300 | #if EV_VERIFY >= 2 |
2089 | ev_loop_verify (EV_A); |
3301 | ev_verify (EV_A); |
2090 | #endif |
3302 | #endif |
2091 | |
3303 | |
2092 | #ifndef _WIN32 |
3304 | #ifndef _WIN32 |
2093 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3305 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2094 | if (expect_false (getpid () != curpid)) |
3306 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2106 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3318 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2107 | EV_INVOKE_PENDING; |
3319 | EV_INVOKE_PENDING; |
2108 | } |
3320 | } |
2109 | #endif |
3321 | #endif |
2110 | |
3322 | |
|
|
3323 | #if EV_PREPARE_ENABLE |
2111 | /* queue prepare watchers (and execute them) */ |
3324 | /* queue prepare watchers (and execute them) */ |
2112 | if (expect_false (preparecnt)) |
3325 | if (expect_false (preparecnt)) |
2113 | { |
3326 | { |
2114 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3327 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2115 | EV_INVOKE_PENDING; |
3328 | EV_INVOKE_PENDING; |
2116 | } |
3329 | } |
|
|
3330 | #endif |
|
|
3331 | |
|
|
3332 | if (expect_false (loop_done)) |
|
|
3333 | break; |
2117 | |
3334 | |
2118 | /* we might have forked, so reify kernel state if necessary */ |
3335 | /* we might have forked, so reify kernel state if necessary */ |
2119 | if (expect_false (postfork)) |
3336 | if (expect_false (postfork)) |
2120 | loop_fork (EV_A); |
3337 | loop_fork (EV_A); |
2121 | |
3338 | |
… | |
… | |
2125 | /* calculate blocking time */ |
3342 | /* calculate blocking time */ |
2126 | { |
3343 | { |
2127 | ev_tstamp waittime = 0.; |
3344 | ev_tstamp waittime = 0.; |
2128 | ev_tstamp sleeptime = 0.; |
3345 | ev_tstamp sleeptime = 0.; |
2129 | |
3346 | |
|
|
3347 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3348 | ev_tstamp prev_mn_now = mn_now; |
|
|
3349 | |
|
|
3350 | /* update time to cancel out callback processing overhead */ |
|
|
3351 | time_update (EV_A_ 1e100); |
|
|
3352 | |
|
|
3353 | /* from now on, we want a pipe-wake-up */ |
|
|
3354 | pipe_write_wanted = 1; |
|
|
3355 | |
|
|
3356 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3357 | |
2130 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3358 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2131 | { |
3359 | { |
2132 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2133 | ev_tstamp prev_mn_now = mn_now; |
|
|
2134 | |
|
|
2135 | /* update time to cancel out callback processing overhead */ |
|
|
2136 | time_update (EV_A_ 1e100); |
|
|
2137 | |
|
|
2138 | waittime = MAX_BLOCKTIME; |
3360 | waittime = MAX_BLOCKTIME; |
2139 | |
3361 | |
2140 | if (timercnt) |
3362 | if (timercnt) |
2141 | { |
3363 | { |
2142 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3364 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2143 | if (waittime > to) waittime = to; |
3365 | if (waittime > to) waittime = to; |
2144 | } |
3366 | } |
2145 | |
3367 | |
2146 | #if EV_PERIODIC_ENABLE |
3368 | #if EV_PERIODIC_ENABLE |
2147 | if (periodiccnt) |
3369 | if (periodiccnt) |
2148 | { |
3370 | { |
2149 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3371 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2150 | if (waittime > to) waittime = to; |
3372 | if (waittime > to) waittime = to; |
2151 | } |
3373 | } |
2152 | #endif |
3374 | #endif |
2153 | |
3375 | |
2154 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3376 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2155 | if (expect_false (waittime < timeout_blocktime)) |
3377 | if (expect_false (waittime < timeout_blocktime)) |
2156 | waittime = timeout_blocktime; |
3378 | waittime = timeout_blocktime; |
|
|
3379 | |
|
|
3380 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3381 | /* to pass a minimum nonzero value to the backend */ |
|
|
3382 | if (expect_false (waittime < backend_mintime)) |
|
|
3383 | waittime = backend_mintime; |
2157 | |
3384 | |
2158 | /* extra check because io_blocktime is commonly 0 */ |
3385 | /* extra check because io_blocktime is commonly 0 */ |
2159 | if (expect_false (io_blocktime)) |
3386 | if (expect_false (io_blocktime)) |
2160 | { |
3387 | { |
2161 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3388 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2162 | |
3389 | |
2163 | if (sleeptime > waittime - backend_fudge) |
3390 | if (sleeptime > waittime - backend_mintime) |
2164 | sleeptime = waittime - backend_fudge; |
3391 | sleeptime = waittime - backend_mintime; |
2165 | |
3392 | |
2166 | if (expect_true (sleeptime > 0.)) |
3393 | if (expect_true (sleeptime > 0.)) |
2167 | { |
3394 | { |
2168 | ev_sleep (sleeptime); |
3395 | ev_sleep (sleeptime); |
2169 | waittime -= sleeptime; |
3396 | waittime -= sleeptime; |
2170 | } |
3397 | } |
2171 | } |
3398 | } |
2172 | } |
3399 | } |
2173 | |
3400 | |
2174 | #if EV_MINIMAL < 2 |
3401 | #if EV_FEATURE_API |
2175 | ++loop_count; |
3402 | ++loop_count; |
2176 | #endif |
3403 | #endif |
|
|
3404 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2177 | backend_poll (EV_A_ waittime); |
3405 | backend_poll (EV_A_ waittime); |
|
|
3406 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3407 | |
|
|
3408 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3409 | |
|
|
3410 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3411 | if (pipe_write_skipped) |
|
|
3412 | { |
|
|
3413 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3414 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3415 | } |
|
|
3416 | |
2178 | |
3417 | |
2179 | /* update ev_rt_now, do magic */ |
3418 | /* update ev_rt_now, do magic */ |
2180 | time_update (EV_A_ waittime + sleeptime); |
3419 | time_update (EV_A_ waittime + sleeptime); |
2181 | } |
3420 | } |
2182 | |
3421 | |
… | |
… | |
2189 | #if EV_IDLE_ENABLE |
3428 | #if EV_IDLE_ENABLE |
2190 | /* queue idle watchers unless other events are pending */ |
3429 | /* queue idle watchers unless other events are pending */ |
2191 | idle_reify (EV_A); |
3430 | idle_reify (EV_A); |
2192 | #endif |
3431 | #endif |
2193 | |
3432 | |
|
|
3433 | #if EV_CHECK_ENABLE |
2194 | /* queue check watchers, to be executed first */ |
3434 | /* queue check watchers, to be executed first */ |
2195 | if (expect_false (checkcnt)) |
3435 | if (expect_false (checkcnt)) |
2196 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3436 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3437 | #endif |
2197 | |
3438 | |
2198 | EV_INVOKE_PENDING; |
3439 | EV_INVOKE_PENDING; |
2199 | } |
3440 | } |
2200 | while (expect_true ( |
3441 | while (expect_true ( |
2201 | activecnt |
3442 | activecnt |
2202 | && !loop_done |
3443 | && !loop_done |
2203 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3444 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2204 | )); |
3445 | )); |
2205 | |
3446 | |
2206 | if (loop_done == EVUNLOOP_ONE) |
3447 | if (loop_done == EVBREAK_ONE) |
2207 | loop_done = EVUNLOOP_CANCEL; |
3448 | loop_done = EVBREAK_CANCEL; |
2208 | |
3449 | |
2209 | #if EV_MINIMAL < 2 |
3450 | #if EV_FEATURE_API |
2210 | --loop_depth; |
3451 | --loop_depth; |
2211 | #endif |
3452 | #endif |
|
|
3453 | |
|
|
3454 | return activecnt; |
2212 | } |
3455 | } |
2213 | |
3456 | |
2214 | void |
3457 | void |
2215 | ev_unloop (EV_P_ int how) |
3458 | ev_break (EV_P_ int how) EV_THROW |
2216 | { |
3459 | { |
2217 | loop_done = how; |
3460 | loop_done = how; |
2218 | } |
3461 | } |
2219 | |
3462 | |
2220 | void |
3463 | void |
2221 | ev_ref (EV_P) |
3464 | ev_ref (EV_P) EV_THROW |
2222 | { |
3465 | { |
2223 | ++activecnt; |
3466 | ++activecnt; |
2224 | } |
3467 | } |
2225 | |
3468 | |
2226 | void |
3469 | void |
2227 | ev_unref (EV_P) |
3470 | ev_unref (EV_P) EV_THROW |
2228 | { |
3471 | { |
2229 | --activecnt; |
3472 | --activecnt; |
2230 | } |
3473 | } |
2231 | |
3474 | |
2232 | void |
3475 | void |
2233 | ev_now_update (EV_P) |
3476 | ev_now_update (EV_P) EV_THROW |
2234 | { |
3477 | { |
2235 | time_update (EV_A_ 1e100); |
3478 | time_update (EV_A_ 1e100); |
2236 | } |
3479 | } |
2237 | |
3480 | |
2238 | void |
3481 | void |
2239 | ev_suspend (EV_P) |
3482 | ev_suspend (EV_P) EV_THROW |
2240 | { |
3483 | { |
2241 | ev_now_update (EV_A); |
3484 | ev_now_update (EV_A); |
2242 | } |
3485 | } |
2243 | |
3486 | |
2244 | void |
3487 | void |
2245 | ev_resume (EV_P) |
3488 | ev_resume (EV_P) EV_THROW |
2246 | { |
3489 | { |
2247 | ev_tstamp mn_prev = mn_now; |
3490 | ev_tstamp mn_prev = mn_now; |
2248 | |
3491 | |
2249 | ev_now_update (EV_A); |
3492 | ev_now_update (EV_A); |
2250 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3493 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2267 | inline_size void |
3510 | inline_size void |
2268 | wlist_del (WL *head, WL elem) |
3511 | wlist_del (WL *head, WL elem) |
2269 | { |
3512 | { |
2270 | while (*head) |
3513 | while (*head) |
2271 | { |
3514 | { |
2272 | if (*head == elem) |
3515 | if (expect_true (*head == elem)) |
2273 | { |
3516 | { |
2274 | *head = elem->next; |
3517 | *head = elem->next; |
2275 | return; |
3518 | break; |
2276 | } |
3519 | } |
2277 | |
3520 | |
2278 | head = &(*head)->next; |
3521 | head = &(*head)->next; |
2279 | } |
3522 | } |
2280 | } |
3523 | } |
… | |
… | |
2289 | w->pending = 0; |
3532 | w->pending = 0; |
2290 | } |
3533 | } |
2291 | } |
3534 | } |
2292 | |
3535 | |
2293 | int |
3536 | int |
2294 | ev_clear_pending (EV_P_ void *w) |
3537 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2295 | { |
3538 | { |
2296 | W w_ = (W)w; |
3539 | W w_ = (W)w; |
2297 | int pending = w_->pending; |
3540 | int pending = w_->pending; |
2298 | |
3541 | |
2299 | if (expect_true (pending)) |
3542 | if (expect_true (pending)) |
… | |
… | |
2332 | } |
3575 | } |
2333 | |
3576 | |
2334 | /*****************************************************************************/ |
3577 | /*****************************************************************************/ |
2335 | |
3578 | |
2336 | void noinline |
3579 | void noinline |
2337 | ev_io_start (EV_P_ ev_io *w) |
3580 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2338 | { |
3581 | { |
2339 | int fd = w->fd; |
3582 | int fd = w->fd; |
2340 | |
3583 | |
2341 | if (expect_false (ev_is_active (w))) |
3584 | if (expect_false (ev_is_active (w))) |
2342 | return; |
3585 | return; |
2343 | |
3586 | |
2344 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3587 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2345 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3588 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2346 | |
3589 | |
2347 | EV_FREQUENT_CHECK; |
3590 | EV_FREQUENT_CHECK; |
2348 | |
3591 | |
2349 | ev_start (EV_A_ (W)w, 1); |
3592 | ev_start (EV_A_ (W)w, 1); |
2350 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3593 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2351 | wlist_add (&anfds[fd].head, (WL)w); |
3594 | wlist_add (&anfds[fd].head, (WL)w); |
2352 | |
3595 | |
|
|
3596 | /* common bug, apparently */ |
|
|
3597 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3598 | |
2353 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
3599 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2354 | w->events &= ~EV__IOFDSET; |
3600 | w->events &= ~EV__IOFDSET; |
2355 | |
3601 | |
2356 | EV_FREQUENT_CHECK; |
3602 | EV_FREQUENT_CHECK; |
2357 | } |
3603 | } |
2358 | |
3604 | |
2359 | void noinline |
3605 | void noinline |
2360 | ev_io_stop (EV_P_ ev_io *w) |
3606 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2361 | { |
3607 | { |
2362 | clear_pending (EV_A_ (W)w); |
3608 | clear_pending (EV_A_ (W)w); |
2363 | if (expect_false (!ev_is_active (w))) |
3609 | if (expect_false (!ev_is_active (w))) |
2364 | return; |
3610 | return; |
2365 | |
3611 | |
… | |
… | |
2368 | EV_FREQUENT_CHECK; |
3614 | EV_FREQUENT_CHECK; |
2369 | |
3615 | |
2370 | wlist_del (&anfds[w->fd].head, (WL)w); |
3616 | wlist_del (&anfds[w->fd].head, (WL)w); |
2371 | ev_stop (EV_A_ (W)w); |
3617 | ev_stop (EV_A_ (W)w); |
2372 | |
3618 | |
2373 | fd_change (EV_A_ w->fd, 1); |
3619 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2374 | |
3620 | |
2375 | EV_FREQUENT_CHECK; |
3621 | EV_FREQUENT_CHECK; |
2376 | } |
3622 | } |
2377 | |
3623 | |
2378 | void noinline |
3624 | void noinline |
2379 | ev_timer_start (EV_P_ ev_timer *w) |
3625 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2380 | { |
3626 | { |
2381 | if (expect_false (ev_is_active (w))) |
3627 | if (expect_false (ev_is_active (w))) |
2382 | return; |
3628 | return; |
2383 | |
3629 | |
2384 | ev_at (w) += mn_now; |
3630 | ev_at (w) += mn_now; |
… | |
… | |
2398 | |
3644 | |
2399 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3645 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2400 | } |
3646 | } |
2401 | |
3647 | |
2402 | void noinline |
3648 | void noinline |
2403 | ev_timer_stop (EV_P_ ev_timer *w) |
3649 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2404 | { |
3650 | { |
2405 | clear_pending (EV_A_ (W)w); |
3651 | clear_pending (EV_A_ (W)w); |
2406 | if (expect_false (!ev_is_active (w))) |
3652 | if (expect_false (!ev_is_active (w))) |
2407 | return; |
3653 | return; |
2408 | |
3654 | |
… | |
… | |
2420 | timers [active] = timers [timercnt + HEAP0]; |
3666 | timers [active] = timers [timercnt + HEAP0]; |
2421 | adjustheap (timers, timercnt, active); |
3667 | adjustheap (timers, timercnt, active); |
2422 | } |
3668 | } |
2423 | } |
3669 | } |
2424 | |
3670 | |
2425 | EV_FREQUENT_CHECK; |
|
|
2426 | |
|
|
2427 | ev_at (w) -= mn_now; |
3671 | ev_at (w) -= mn_now; |
2428 | |
3672 | |
2429 | ev_stop (EV_A_ (W)w); |
3673 | ev_stop (EV_A_ (W)w); |
|
|
3674 | |
|
|
3675 | EV_FREQUENT_CHECK; |
2430 | } |
3676 | } |
2431 | |
3677 | |
2432 | void noinline |
3678 | void noinline |
2433 | ev_timer_again (EV_P_ ev_timer *w) |
3679 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2434 | { |
3680 | { |
2435 | EV_FREQUENT_CHECK; |
3681 | EV_FREQUENT_CHECK; |
|
|
3682 | |
|
|
3683 | clear_pending (EV_A_ (W)w); |
2436 | |
3684 | |
2437 | if (ev_is_active (w)) |
3685 | if (ev_is_active (w)) |
2438 | { |
3686 | { |
2439 | if (w->repeat) |
3687 | if (w->repeat) |
2440 | { |
3688 | { |
… | |
… | |
2452 | } |
3700 | } |
2453 | |
3701 | |
2454 | EV_FREQUENT_CHECK; |
3702 | EV_FREQUENT_CHECK; |
2455 | } |
3703 | } |
2456 | |
3704 | |
|
|
3705 | ev_tstamp |
|
|
3706 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
|
|
3707 | { |
|
|
3708 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
3709 | } |
|
|
3710 | |
2457 | #if EV_PERIODIC_ENABLE |
3711 | #if EV_PERIODIC_ENABLE |
2458 | void noinline |
3712 | void noinline |
2459 | ev_periodic_start (EV_P_ ev_periodic *w) |
3713 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2460 | { |
3714 | { |
2461 | if (expect_false (ev_is_active (w))) |
3715 | if (expect_false (ev_is_active (w))) |
2462 | return; |
3716 | return; |
2463 | |
3717 | |
2464 | if (w->reschedule_cb) |
3718 | if (w->reschedule_cb) |
2465 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3719 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2466 | else if (w->interval) |
3720 | else if (w->interval) |
2467 | { |
3721 | { |
2468 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3722 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2469 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3723 | periodic_recalc (EV_A_ w); |
2470 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2471 | } |
3724 | } |
2472 | else |
3725 | else |
2473 | ev_at (w) = w->offset; |
3726 | ev_at (w) = w->offset; |
2474 | |
3727 | |
2475 | EV_FREQUENT_CHECK; |
3728 | EV_FREQUENT_CHECK; |
… | |
… | |
2485 | |
3738 | |
2486 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3739 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2487 | } |
3740 | } |
2488 | |
3741 | |
2489 | void noinline |
3742 | void noinline |
2490 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3743 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2491 | { |
3744 | { |
2492 | clear_pending (EV_A_ (W)w); |
3745 | clear_pending (EV_A_ (W)w); |
2493 | if (expect_false (!ev_is_active (w))) |
3746 | if (expect_false (!ev_is_active (w))) |
2494 | return; |
3747 | return; |
2495 | |
3748 | |
… | |
… | |
2507 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3760 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2508 | adjustheap (periodics, periodiccnt, active); |
3761 | adjustheap (periodics, periodiccnt, active); |
2509 | } |
3762 | } |
2510 | } |
3763 | } |
2511 | |
3764 | |
2512 | EV_FREQUENT_CHECK; |
|
|
2513 | |
|
|
2514 | ev_stop (EV_A_ (W)w); |
3765 | ev_stop (EV_A_ (W)w); |
|
|
3766 | |
|
|
3767 | EV_FREQUENT_CHECK; |
2515 | } |
3768 | } |
2516 | |
3769 | |
2517 | void noinline |
3770 | void noinline |
2518 | ev_periodic_again (EV_P_ ev_periodic *w) |
3771 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2519 | { |
3772 | { |
2520 | /* TODO: use adjustheap and recalculation */ |
3773 | /* TODO: use adjustheap and recalculation */ |
2521 | ev_periodic_stop (EV_A_ w); |
3774 | ev_periodic_stop (EV_A_ w); |
2522 | ev_periodic_start (EV_A_ w); |
3775 | ev_periodic_start (EV_A_ w); |
2523 | } |
3776 | } |
… | |
… | |
2525 | |
3778 | |
2526 | #ifndef SA_RESTART |
3779 | #ifndef SA_RESTART |
2527 | # define SA_RESTART 0 |
3780 | # define SA_RESTART 0 |
2528 | #endif |
3781 | #endif |
2529 | |
3782 | |
|
|
3783 | #if EV_SIGNAL_ENABLE |
|
|
3784 | |
2530 | void noinline |
3785 | void noinline |
2531 | ev_signal_start (EV_P_ ev_signal *w) |
3786 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2532 | { |
3787 | { |
2533 | #if EV_MULTIPLICITY |
|
|
2534 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2535 | #endif |
|
|
2536 | if (expect_false (ev_is_active (w))) |
3788 | if (expect_false (ev_is_active (w))) |
2537 | return; |
3789 | return; |
2538 | |
3790 | |
2539 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
3791 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2540 | |
3792 | |
2541 | evpipe_init (EV_A); |
3793 | #if EV_MULTIPLICITY |
|
|
3794 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3795 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2542 | |
3796 | |
2543 | EV_FREQUENT_CHECK; |
3797 | signals [w->signum - 1].loop = EV_A; |
|
|
3798 | ECB_MEMORY_FENCE_RELEASE; |
|
|
3799 | #endif |
2544 | |
3800 | |
|
|
3801 | EV_FREQUENT_CHECK; |
|
|
3802 | |
|
|
3803 | #if EV_USE_SIGNALFD |
|
|
3804 | if (sigfd == -2) |
2545 | { |
3805 | { |
2546 | #ifndef _WIN32 |
3806 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2547 | sigset_t full, prev; |
3807 | if (sigfd < 0 && errno == EINVAL) |
2548 | sigfillset (&full); |
3808 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2549 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2550 | #endif |
|
|
2551 | |
3809 | |
2552 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
3810 | if (sigfd >= 0) |
|
|
3811 | { |
|
|
3812 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2553 | |
3813 | |
2554 | #ifndef _WIN32 |
3814 | sigemptyset (&sigfd_set); |
2555 | sigprocmask (SIG_SETMASK, &prev, 0); |
3815 | |
2556 | #endif |
3816 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3817 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3818 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3819 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3820 | } |
2557 | } |
3821 | } |
|
|
3822 | |
|
|
3823 | if (sigfd >= 0) |
|
|
3824 | { |
|
|
3825 | /* TODO: check .head */ |
|
|
3826 | sigaddset (&sigfd_set, w->signum); |
|
|
3827 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3828 | |
|
|
3829 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3830 | } |
|
|
3831 | #endif |
2558 | |
3832 | |
2559 | ev_start (EV_A_ (W)w, 1); |
3833 | ev_start (EV_A_ (W)w, 1); |
2560 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3834 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2561 | |
3835 | |
2562 | if (!((WL)w)->next) |
3836 | if (!((WL)w)->next) |
|
|
3837 | # if EV_USE_SIGNALFD |
|
|
3838 | if (sigfd < 0) /*TODO*/ |
|
|
3839 | # endif |
2563 | { |
3840 | { |
2564 | #if _WIN32 |
3841 | # ifdef _WIN32 |
|
|
3842 | evpipe_init (EV_A); |
|
|
3843 | |
2565 | signal (w->signum, ev_sighandler); |
3844 | signal (w->signum, ev_sighandler); |
2566 | #else |
3845 | # else |
2567 | struct sigaction sa; |
3846 | struct sigaction sa; |
|
|
3847 | |
|
|
3848 | evpipe_init (EV_A); |
|
|
3849 | |
2568 | sa.sa_handler = ev_sighandler; |
3850 | sa.sa_handler = ev_sighandler; |
2569 | sigfillset (&sa.sa_mask); |
3851 | sigfillset (&sa.sa_mask); |
2570 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3852 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2571 | sigaction (w->signum, &sa, 0); |
3853 | sigaction (w->signum, &sa, 0); |
|
|
3854 | |
|
|
3855 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3856 | { |
|
|
3857 | sigemptyset (&sa.sa_mask); |
|
|
3858 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3859 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3860 | } |
2572 | #endif |
3861 | #endif |
2573 | } |
3862 | } |
2574 | |
3863 | |
2575 | EV_FREQUENT_CHECK; |
3864 | EV_FREQUENT_CHECK; |
2576 | } |
3865 | } |
2577 | |
3866 | |
2578 | void noinline |
3867 | void noinline |
2579 | ev_signal_stop (EV_P_ ev_signal *w) |
3868 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2580 | { |
3869 | { |
2581 | clear_pending (EV_A_ (W)w); |
3870 | clear_pending (EV_A_ (W)w); |
2582 | if (expect_false (!ev_is_active (w))) |
3871 | if (expect_false (!ev_is_active (w))) |
2583 | return; |
3872 | return; |
2584 | |
3873 | |
… | |
… | |
2586 | |
3875 | |
2587 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3876 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2588 | ev_stop (EV_A_ (W)w); |
3877 | ev_stop (EV_A_ (W)w); |
2589 | |
3878 | |
2590 | if (!signals [w->signum - 1].head) |
3879 | if (!signals [w->signum - 1].head) |
|
|
3880 | { |
|
|
3881 | #if EV_MULTIPLICITY |
|
|
3882 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3883 | #endif |
|
|
3884 | #if EV_USE_SIGNALFD |
|
|
3885 | if (sigfd >= 0) |
|
|
3886 | { |
|
|
3887 | sigset_t ss; |
|
|
3888 | |
|
|
3889 | sigemptyset (&ss); |
|
|
3890 | sigaddset (&ss, w->signum); |
|
|
3891 | sigdelset (&sigfd_set, w->signum); |
|
|
3892 | |
|
|
3893 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3894 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3895 | } |
|
|
3896 | else |
|
|
3897 | #endif |
2591 | signal (w->signum, SIG_DFL); |
3898 | signal (w->signum, SIG_DFL); |
|
|
3899 | } |
2592 | |
3900 | |
2593 | EV_FREQUENT_CHECK; |
3901 | EV_FREQUENT_CHECK; |
2594 | } |
3902 | } |
|
|
3903 | |
|
|
3904 | #endif |
|
|
3905 | |
|
|
3906 | #if EV_CHILD_ENABLE |
2595 | |
3907 | |
2596 | void |
3908 | void |
2597 | ev_child_start (EV_P_ ev_child *w) |
3909 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2598 | { |
3910 | { |
2599 | #if EV_MULTIPLICITY |
3911 | #if EV_MULTIPLICITY |
2600 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3912 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2601 | #endif |
3913 | #endif |
2602 | if (expect_false (ev_is_active (w))) |
3914 | if (expect_false (ev_is_active (w))) |
2603 | return; |
3915 | return; |
2604 | |
3916 | |
2605 | EV_FREQUENT_CHECK; |
3917 | EV_FREQUENT_CHECK; |
2606 | |
3918 | |
2607 | ev_start (EV_A_ (W)w, 1); |
3919 | ev_start (EV_A_ (W)w, 1); |
2608 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3920 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2609 | |
3921 | |
2610 | EV_FREQUENT_CHECK; |
3922 | EV_FREQUENT_CHECK; |
2611 | } |
3923 | } |
2612 | |
3924 | |
2613 | void |
3925 | void |
2614 | ev_child_stop (EV_P_ ev_child *w) |
3926 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2615 | { |
3927 | { |
2616 | clear_pending (EV_A_ (W)w); |
3928 | clear_pending (EV_A_ (W)w); |
2617 | if (expect_false (!ev_is_active (w))) |
3929 | if (expect_false (!ev_is_active (w))) |
2618 | return; |
3930 | return; |
2619 | |
3931 | |
2620 | EV_FREQUENT_CHECK; |
3932 | EV_FREQUENT_CHECK; |
2621 | |
3933 | |
2622 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3934 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2623 | ev_stop (EV_A_ (W)w); |
3935 | ev_stop (EV_A_ (W)w); |
2624 | |
3936 | |
2625 | EV_FREQUENT_CHECK; |
3937 | EV_FREQUENT_CHECK; |
2626 | } |
3938 | } |
|
|
3939 | |
|
|
3940 | #endif |
2627 | |
3941 | |
2628 | #if EV_STAT_ENABLE |
3942 | #if EV_STAT_ENABLE |
2629 | |
3943 | |
2630 | # ifdef _WIN32 |
3944 | # ifdef _WIN32 |
2631 | # undef lstat |
3945 | # undef lstat |
… | |
… | |
2637 | #define MIN_STAT_INTERVAL 0.1074891 |
3951 | #define MIN_STAT_INTERVAL 0.1074891 |
2638 | |
3952 | |
2639 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3953 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2640 | |
3954 | |
2641 | #if EV_USE_INOTIFY |
3955 | #if EV_USE_INOTIFY |
2642 | # define EV_INOTIFY_BUFSIZE 8192 |
3956 | |
|
|
3957 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3958 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2643 | |
3959 | |
2644 | static void noinline |
3960 | static void noinline |
2645 | infy_add (EV_P_ ev_stat *w) |
3961 | infy_add (EV_P_ ev_stat *w) |
2646 | { |
3962 | { |
2647 | 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); |
3963 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3964 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3965 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3966 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2648 | |
3967 | |
2649 | if (w->wd < 0) |
3968 | if (w->wd >= 0) |
|
|
3969 | { |
|
|
3970 | struct statfs sfs; |
|
|
3971 | |
|
|
3972 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3973 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3974 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3975 | |
|
|
3976 | if (!fs_2625) |
|
|
3977 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3978 | else if (!statfs (w->path, &sfs) |
|
|
3979 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3980 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3981 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
3982 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3983 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3984 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3985 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
3986 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3987 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
3988 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3989 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
3990 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3991 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3992 | else |
|
|
3993 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2650 | { |
3994 | } |
|
|
3995 | else |
|
|
3996 | { |
|
|
3997 | /* can't use inotify, continue to stat */ |
2651 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3998 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2652 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2653 | |
3999 | |
2654 | /* monitor some parent directory for speedup hints */ |
4000 | /* if path is not there, monitor some parent directory for speedup hints */ |
2655 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
4001 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2656 | /* but an efficiency issue only */ |
4002 | /* but an efficiency issue only */ |
2657 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
4003 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2658 | { |
4004 | { |
2659 | char path [4096]; |
4005 | char path [4096]; |
… | |
… | |
2669 | if (!pend || pend == path) |
4015 | if (!pend || pend == path) |
2670 | break; |
4016 | break; |
2671 | |
4017 | |
2672 | *pend = 0; |
4018 | *pend = 0; |
2673 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4019 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2674 | } |
4020 | } |
2675 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4021 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2676 | } |
4022 | } |
2677 | } |
4023 | } |
2678 | |
4024 | |
2679 | if (w->wd >= 0) |
4025 | if (w->wd >= 0) |
2680 | { |
|
|
2681 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4026 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2682 | |
4027 | |
2683 | /* now local changes will be tracked by inotify, but remote changes won't */ |
4028 | /* now re-arm timer, if required */ |
2684 | /* unless the filesystem it known to be local, we therefore still poll */ |
4029 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2685 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2686 | struct statfs sfs; |
|
|
2687 | |
|
|
2688 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2689 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2690 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2691 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2692 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2693 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2694 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2695 | return; |
|
|
2696 | |
|
|
2697 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2698 | ev_timer_again (EV_A_ &w->timer); |
4030 | ev_timer_again (EV_A_ &w->timer); |
2699 | } |
4031 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2700 | } |
4032 | } |
2701 | |
4033 | |
2702 | static void noinline |
4034 | static void noinline |
2703 | infy_del (EV_P_ ev_stat *w) |
4035 | infy_del (EV_P_ ev_stat *w) |
2704 | { |
4036 | { |
… | |
… | |
2707 | |
4039 | |
2708 | if (wd < 0) |
4040 | if (wd < 0) |
2709 | return; |
4041 | return; |
2710 | |
4042 | |
2711 | w->wd = -2; |
4043 | w->wd = -2; |
2712 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4044 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2713 | wlist_del (&fs_hash [slot].head, (WL)w); |
4045 | wlist_del (&fs_hash [slot].head, (WL)w); |
2714 | |
4046 | |
2715 | /* remove this watcher, if others are watching it, they will rearm */ |
4047 | /* remove this watcher, if others are watching it, they will rearm */ |
2716 | inotify_rm_watch (fs_fd, wd); |
4048 | inotify_rm_watch (fs_fd, wd); |
2717 | } |
4049 | } |
… | |
… | |
2719 | static void noinline |
4051 | static void noinline |
2720 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4052 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2721 | { |
4053 | { |
2722 | if (slot < 0) |
4054 | if (slot < 0) |
2723 | /* overflow, need to check for all hash slots */ |
4055 | /* overflow, need to check for all hash slots */ |
2724 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4056 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2725 | infy_wd (EV_A_ slot, wd, ev); |
4057 | infy_wd (EV_A_ slot, wd, ev); |
2726 | else |
4058 | else |
2727 | { |
4059 | { |
2728 | WL w_; |
4060 | WL w_; |
2729 | |
4061 | |
2730 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4062 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2731 | { |
4063 | { |
2732 | ev_stat *w = (ev_stat *)w_; |
4064 | ev_stat *w = (ev_stat *)w_; |
2733 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4065 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2734 | |
4066 | |
2735 | if (w->wd == wd || wd == -1) |
4067 | if (w->wd == wd || wd == -1) |
2736 | { |
4068 | { |
2737 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4069 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2738 | { |
4070 | { |
2739 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4071 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2740 | w->wd = -1; |
4072 | w->wd = -1; |
2741 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4073 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2742 | } |
4074 | } |
2743 | |
4075 | |
2744 | stat_timer_cb (EV_A_ &w->timer, 0); |
4076 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2749 | |
4081 | |
2750 | static void |
4082 | static void |
2751 | infy_cb (EV_P_ ev_io *w, int revents) |
4083 | infy_cb (EV_P_ ev_io *w, int revents) |
2752 | { |
4084 | { |
2753 | char buf [EV_INOTIFY_BUFSIZE]; |
4085 | char buf [EV_INOTIFY_BUFSIZE]; |
2754 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2755 | int ofs; |
4086 | int ofs; |
2756 | int len = read (fs_fd, buf, sizeof (buf)); |
4087 | int len = read (fs_fd, buf, sizeof (buf)); |
2757 | |
4088 | |
2758 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4089 | for (ofs = 0; ofs < len; ) |
|
|
4090 | { |
|
|
4091 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2759 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4092 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4093 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4094 | } |
2760 | } |
4095 | } |
2761 | |
4096 | |
2762 | inline_size void |
4097 | inline_size void ecb_cold |
2763 | check_2625 (EV_P) |
4098 | ev_check_2625 (EV_P) |
2764 | { |
4099 | { |
2765 | /* kernels < 2.6.25 are borked |
4100 | /* kernels < 2.6.25 are borked |
2766 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4101 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2767 | */ |
4102 | */ |
2768 | struct utsname buf; |
4103 | if (ev_linux_version () < 0x020619) |
2769 | int major, minor, micro; |
|
|
2770 | |
|
|
2771 | if (uname (&buf)) |
|
|
2772 | return; |
4104 | return; |
2773 | |
4105 | |
2774 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2775 | return; |
|
|
2776 | |
|
|
2777 | if (major < 2 |
|
|
2778 | || (major == 2 && minor < 6) |
|
|
2779 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2780 | return; |
|
|
2781 | |
|
|
2782 | fs_2625 = 1; |
4106 | fs_2625 = 1; |
|
|
4107 | } |
|
|
4108 | |
|
|
4109 | inline_size int |
|
|
4110 | infy_newfd (void) |
|
|
4111 | { |
|
|
4112 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4113 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4114 | if (fd >= 0) |
|
|
4115 | return fd; |
|
|
4116 | #endif |
|
|
4117 | return inotify_init (); |
2783 | } |
4118 | } |
2784 | |
4119 | |
2785 | inline_size void |
4120 | inline_size void |
2786 | infy_init (EV_P) |
4121 | infy_init (EV_P) |
2787 | { |
4122 | { |
2788 | if (fs_fd != -2) |
4123 | if (fs_fd != -2) |
2789 | return; |
4124 | return; |
2790 | |
4125 | |
2791 | fs_fd = -1; |
4126 | fs_fd = -1; |
2792 | |
4127 | |
2793 | check_2625 (EV_A); |
4128 | ev_check_2625 (EV_A); |
2794 | |
4129 | |
2795 | fs_fd = inotify_init (); |
4130 | fs_fd = infy_newfd (); |
2796 | |
4131 | |
2797 | if (fs_fd >= 0) |
4132 | if (fs_fd >= 0) |
2798 | { |
4133 | { |
|
|
4134 | fd_intern (fs_fd); |
2799 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4135 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2800 | ev_set_priority (&fs_w, EV_MAXPRI); |
4136 | ev_set_priority (&fs_w, EV_MAXPRI); |
2801 | ev_io_start (EV_A_ &fs_w); |
4137 | ev_io_start (EV_A_ &fs_w); |
|
|
4138 | ev_unref (EV_A); |
2802 | } |
4139 | } |
2803 | } |
4140 | } |
2804 | |
4141 | |
2805 | inline_size void |
4142 | inline_size void |
2806 | infy_fork (EV_P) |
4143 | infy_fork (EV_P) |
… | |
… | |
2808 | int slot; |
4145 | int slot; |
2809 | |
4146 | |
2810 | if (fs_fd < 0) |
4147 | if (fs_fd < 0) |
2811 | return; |
4148 | return; |
2812 | |
4149 | |
|
|
4150 | ev_ref (EV_A); |
|
|
4151 | ev_io_stop (EV_A_ &fs_w); |
2813 | close (fs_fd); |
4152 | close (fs_fd); |
2814 | fs_fd = inotify_init (); |
4153 | fs_fd = infy_newfd (); |
2815 | |
4154 | |
|
|
4155 | if (fs_fd >= 0) |
|
|
4156 | { |
|
|
4157 | fd_intern (fs_fd); |
|
|
4158 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4159 | ev_io_start (EV_A_ &fs_w); |
|
|
4160 | ev_unref (EV_A); |
|
|
4161 | } |
|
|
4162 | |
2816 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4163 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2817 | { |
4164 | { |
2818 | WL w_ = fs_hash [slot].head; |
4165 | WL w_ = fs_hash [slot].head; |
2819 | fs_hash [slot].head = 0; |
4166 | fs_hash [slot].head = 0; |
2820 | |
4167 | |
2821 | while (w_) |
4168 | while (w_) |
… | |
… | |
2826 | w->wd = -1; |
4173 | w->wd = -1; |
2827 | |
4174 | |
2828 | if (fs_fd >= 0) |
4175 | if (fs_fd >= 0) |
2829 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4176 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2830 | else |
4177 | else |
|
|
4178 | { |
|
|
4179 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4180 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2831 | ev_timer_again (EV_A_ &w->timer); |
4181 | ev_timer_again (EV_A_ &w->timer); |
|
|
4182 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4183 | } |
2832 | } |
4184 | } |
2833 | } |
4185 | } |
2834 | } |
4186 | } |
2835 | |
4187 | |
2836 | #endif |
4188 | #endif |
… | |
… | |
2840 | #else |
4192 | #else |
2841 | # define EV_LSTAT(p,b) lstat (p, b) |
4193 | # define EV_LSTAT(p,b) lstat (p, b) |
2842 | #endif |
4194 | #endif |
2843 | |
4195 | |
2844 | void |
4196 | void |
2845 | ev_stat_stat (EV_P_ ev_stat *w) |
4197 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
2846 | { |
4198 | { |
2847 | if (lstat (w->path, &w->attr) < 0) |
4199 | if (lstat (w->path, &w->attr) < 0) |
2848 | w->attr.st_nlink = 0; |
4200 | w->attr.st_nlink = 0; |
2849 | else if (!w->attr.st_nlink) |
4201 | else if (!w->attr.st_nlink) |
2850 | w->attr.st_nlink = 1; |
4202 | w->attr.st_nlink = 1; |
… | |
… | |
2853 | static void noinline |
4205 | static void noinline |
2854 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4206 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2855 | { |
4207 | { |
2856 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4208 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2857 | |
4209 | |
2858 | /* we copy this here each the time so that */ |
4210 | ev_statdata prev = w->attr; |
2859 | /* prev has the old value when the callback gets invoked */ |
|
|
2860 | w->prev = w->attr; |
|
|
2861 | ev_stat_stat (EV_A_ w); |
4211 | ev_stat_stat (EV_A_ w); |
2862 | |
4212 | |
2863 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4213 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2864 | if ( |
4214 | if ( |
2865 | w->prev.st_dev != w->attr.st_dev |
4215 | prev.st_dev != w->attr.st_dev |
2866 | || w->prev.st_ino != w->attr.st_ino |
4216 | || prev.st_ino != w->attr.st_ino |
2867 | || w->prev.st_mode != w->attr.st_mode |
4217 | || prev.st_mode != w->attr.st_mode |
2868 | || w->prev.st_nlink != w->attr.st_nlink |
4218 | || prev.st_nlink != w->attr.st_nlink |
2869 | || w->prev.st_uid != w->attr.st_uid |
4219 | || prev.st_uid != w->attr.st_uid |
2870 | || w->prev.st_gid != w->attr.st_gid |
4220 | || prev.st_gid != w->attr.st_gid |
2871 | || w->prev.st_rdev != w->attr.st_rdev |
4221 | || prev.st_rdev != w->attr.st_rdev |
2872 | || w->prev.st_size != w->attr.st_size |
4222 | || prev.st_size != w->attr.st_size |
2873 | || w->prev.st_atime != w->attr.st_atime |
4223 | || prev.st_atime != w->attr.st_atime |
2874 | || w->prev.st_mtime != w->attr.st_mtime |
4224 | || prev.st_mtime != w->attr.st_mtime |
2875 | || w->prev.st_ctime != w->attr.st_ctime |
4225 | || prev.st_ctime != w->attr.st_ctime |
2876 | ) { |
4226 | ) { |
|
|
4227 | /* we only update w->prev on actual differences */ |
|
|
4228 | /* in case we test more often than invoke the callback, */ |
|
|
4229 | /* to ensure that prev is always different to attr */ |
|
|
4230 | w->prev = prev; |
|
|
4231 | |
2877 | #if EV_USE_INOTIFY |
4232 | #if EV_USE_INOTIFY |
2878 | if (fs_fd >= 0) |
4233 | if (fs_fd >= 0) |
2879 | { |
4234 | { |
2880 | infy_del (EV_A_ w); |
4235 | infy_del (EV_A_ w); |
2881 | infy_add (EV_A_ w); |
4236 | infy_add (EV_A_ w); |
… | |
… | |
2886 | ev_feed_event (EV_A_ w, EV_STAT); |
4241 | ev_feed_event (EV_A_ w, EV_STAT); |
2887 | } |
4242 | } |
2888 | } |
4243 | } |
2889 | |
4244 | |
2890 | void |
4245 | void |
2891 | ev_stat_start (EV_P_ ev_stat *w) |
4246 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
2892 | { |
4247 | { |
2893 | if (expect_false (ev_is_active (w))) |
4248 | if (expect_false (ev_is_active (w))) |
2894 | return; |
4249 | return; |
2895 | |
4250 | |
2896 | ev_stat_stat (EV_A_ w); |
4251 | ev_stat_stat (EV_A_ w); |
… | |
… | |
2906 | |
4261 | |
2907 | if (fs_fd >= 0) |
4262 | if (fs_fd >= 0) |
2908 | infy_add (EV_A_ w); |
4263 | infy_add (EV_A_ w); |
2909 | else |
4264 | else |
2910 | #endif |
4265 | #endif |
|
|
4266 | { |
2911 | ev_timer_again (EV_A_ &w->timer); |
4267 | ev_timer_again (EV_A_ &w->timer); |
|
|
4268 | ev_unref (EV_A); |
|
|
4269 | } |
2912 | |
4270 | |
2913 | ev_start (EV_A_ (W)w, 1); |
4271 | ev_start (EV_A_ (W)w, 1); |
2914 | |
4272 | |
2915 | EV_FREQUENT_CHECK; |
4273 | EV_FREQUENT_CHECK; |
2916 | } |
4274 | } |
2917 | |
4275 | |
2918 | void |
4276 | void |
2919 | ev_stat_stop (EV_P_ ev_stat *w) |
4277 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
2920 | { |
4278 | { |
2921 | clear_pending (EV_A_ (W)w); |
4279 | clear_pending (EV_A_ (W)w); |
2922 | if (expect_false (!ev_is_active (w))) |
4280 | if (expect_false (!ev_is_active (w))) |
2923 | return; |
4281 | return; |
2924 | |
4282 | |
2925 | EV_FREQUENT_CHECK; |
4283 | EV_FREQUENT_CHECK; |
2926 | |
4284 | |
2927 | #if EV_USE_INOTIFY |
4285 | #if EV_USE_INOTIFY |
2928 | infy_del (EV_A_ w); |
4286 | infy_del (EV_A_ w); |
2929 | #endif |
4287 | #endif |
|
|
4288 | |
|
|
4289 | if (ev_is_active (&w->timer)) |
|
|
4290 | { |
|
|
4291 | ev_ref (EV_A); |
2930 | ev_timer_stop (EV_A_ &w->timer); |
4292 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4293 | } |
2931 | |
4294 | |
2932 | ev_stop (EV_A_ (W)w); |
4295 | ev_stop (EV_A_ (W)w); |
2933 | |
4296 | |
2934 | EV_FREQUENT_CHECK; |
4297 | EV_FREQUENT_CHECK; |
2935 | } |
4298 | } |
2936 | #endif |
4299 | #endif |
2937 | |
4300 | |
2938 | #if EV_IDLE_ENABLE |
4301 | #if EV_IDLE_ENABLE |
2939 | void |
4302 | void |
2940 | ev_idle_start (EV_P_ ev_idle *w) |
4303 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
2941 | { |
4304 | { |
2942 | if (expect_false (ev_is_active (w))) |
4305 | if (expect_false (ev_is_active (w))) |
2943 | return; |
4306 | return; |
2944 | |
4307 | |
2945 | pri_adjust (EV_A_ (W)w); |
4308 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
2958 | |
4321 | |
2959 | EV_FREQUENT_CHECK; |
4322 | EV_FREQUENT_CHECK; |
2960 | } |
4323 | } |
2961 | |
4324 | |
2962 | void |
4325 | void |
2963 | ev_idle_stop (EV_P_ ev_idle *w) |
4326 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
2964 | { |
4327 | { |
2965 | clear_pending (EV_A_ (W)w); |
4328 | clear_pending (EV_A_ (W)w); |
2966 | if (expect_false (!ev_is_active (w))) |
4329 | if (expect_false (!ev_is_active (w))) |
2967 | return; |
4330 | return; |
2968 | |
4331 | |
… | |
… | |
2980 | |
4343 | |
2981 | EV_FREQUENT_CHECK; |
4344 | EV_FREQUENT_CHECK; |
2982 | } |
4345 | } |
2983 | #endif |
4346 | #endif |
2984 | |
4347 | |
|
|
4348 | #if EV_PREPARE_ENABLE |
2985 | void |
4349 | void |
2986 | ev_prepare_start (EV_P_ ev_prepare *w) |
4350 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
2987 | { |
4351 | { |
2988 | if (expect_false (ev_is_active (w))) |
4352 | if (expect_false (ev_is_active (w))) |
2989 | return; |
4353 | return; |
2990 | |
4354 | |
2991 | EV_FREQUENT_CHECK; |
4355 | EV_FREQUENT_CHECK; |
… | |
… | |
2996 | |
4360 | |
2997 | EV_FREQUENT_CHECK; |
4361 | EV_FREQUENT_CHECK; |
2998 | } |
4362 | } |
2999 | |
4363 | |
3000 | void |
4364 | void |
3001 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4365 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3002 | { |
4366 | { |
3003 | clear_pending (EV_A_ (W)w); |
4367 | clear_pending (EV_A_ (W)w); |
3004 | if (expect_false (!ev_is_active (w))) |
4368 | if (expect_false (!ev_is_active (w))) |
3005 | return; |
4369 | return; |
3006 | |
4370 | |
… | |
… | |
3015 | |
4379 | |
3016 | ev_stop (EV_A_ (W)w); |
4380 | ev_stop (EV_A_ (W)w); |
3017 | |
4381 | |
3018 | EV_FREQUENT_CHECK; |
4382 | EV_FREQUENT_CHECK; |
3019 | } |
4383 | } |
|
|
4384 | #endif |
3020 | |
4385 | |
|
|
4386 | #if EV_CHECK_ENABLE |
3021 | void |
4387 | void |
3022 | ev_check_start (EV_P_ ev_check *w) |
4388 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3023 | { |
4389 | { |
3024 | if (expect_false (ev_is_active (w))) |
4390 | if (expect_false (ev_is_active (w))) |
3025 | return; |
4391 | return; |
3026 | |
4392 | |
3027 | EV_FREQUENT_CHECK; |
4393 | EV_FREQUENT_CHECK; |
… | |
… | |
3032 | |
4398 | |
3033 | EV_FREQUENT_CHECK; |
4399 | EV_FREQUENT_CHECK; |
3034 | } |
4400 | } |
3035 | |
4401 | |
3036 | void |
4402 | void |
3037 | ev_check_stop (EV_P_ ev_check *w) |
4403 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3038 | { |
4404 | { |
3039 | clear_pending (EV_A_ (W)w); |
4405 | clear_pending (EV_A_ (W)w); |
3040 | if (expect_false (!ev_is_active (w))) |
4406 | if (expect_false (!ev_is_active (w))) |
3041 | return; |
4407 | return; |
3042 | |
4408 | |
… | |
… | |
3051 | |
4417 | |
3052 | ev_stop (EV_A_ (W)w); |
4418 | ev_stop (EV_A_ (W)w); |
3053 | |
4419 | |
3054 | EV_FREQUENT_CHECK; |
4420 | EV_FREQUENT_CHECK; |
3055 | } |
4421 | } |
|
|
4422 | #endif |
3056 | |
4423 | |
3057 | #if EV_EMBED_ENABLE |
4424 | #if EV_EMBED_ENABLE |
3058 | void noinline |
4425 | void noinline |
3059 | ev_embed_sweep (EV_P_ ev_embed *w) |
4426 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3060 | { |
4427 | { |
3061 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4428 | ev_run (w->other, EVRUN_NOWAIT); |
3062 | } |
4429 | } |
3063 | |
4430 | |
3064 | static void |
4431 | static void |
3065 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4432 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3066 | { |
4433 | { |
3067 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4434 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3068 | |
4435 | |
3069 | if (ev_cb (w)) |
4436 | if (ev_cb (w)) |
3070 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4437 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3071 | else |
4438 | else |
3072 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4439 | ev_run (w->other, EVRUN_NOWAIT); |
3073 | } |
4440 | } |
3074 | |
4441 | |
3075 | static void |
4442 | static void |
3076 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4443 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3077 | { |
4444 | { |
3078 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4445 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3079 | |
4446 | |
3080 | { |
4447 | { |
3081 | struct ev_loop *loop = w->other; |
4448 | EV_P = w->other; |
3082 | |
4449 | |
3083 | while (fdchangecnt) |
4450 | while (fdchangecnt) |
3084 | { |
4451 | { |
3085 | fd_reify (EV_A); |
4452 | fd_reify (EV_A); |
3086 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4453 | ev_run (EV_A_ EVRUN_NOWAIT); |
3087 | } |
4454 | } |
3088 | } |
4455 | } |
3089 | } |
4456 | } |
3090 | |
4457 | |
3091 | static void |
4458 | static void |
… | |
… | |
3094 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4461 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3095 | |
4462 | |
3096 | ev_embed_stop (EV_A_ w); |
4463 | ev_embed_stop (EV_A_ w); |
3097 | |
4464 | |
3098 | { |
4465 | { |
3099 | struct ev_loop *loop = w->other; |
4466 | EV_P = w->other; |
3100 | |
4467 | |
3101 | ev_loop_fork (EV_A); |
4468 | ev_loop_fork (EV_A); |
3102 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4469 | ev_run (EV_A_ EVRUN_NOWAIT); |
3103 | } |
4470 | } |
3104 | |
4471 | |
3105 | ev_embed_start (EV_A_ w); |
4472 | ev_embed_start (EV_A_ w); |
3106 | } |
4473 | } |
3107 | |
4474 | |
… | |
… | |
3112 | ev_idle_stop (EV_A_ idle); |
4479 | ev_idle_stop (EV_A_ idle); |
3113 | } |
4480 | } |
3114 | #endif |
4481 | #endif |
3115 | |
4482 | |
3116 | void |
4483 | void |
3117 | ev_embed_start (EV_P_ ev_embed *w) |
4484 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3118 | { |
4485 | { |
3119 | if (expect_false (ev_is_active (w))) |
4486 | if (expect_false (ev_is_active (w))) |
3120 | return; |
4487 | return; |
3121 | |
4488 | |
3122 | { |
4489 | { |
3123 | struct ev_loop *loop = w->other; |
4490 | EV_P = w->other; |
3124 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4491 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3125 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4492 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3126 | } |
4493 | } |
3127 | |
4494 | |
3128 | EV_FREQUENT_CHECK; |
4495 | EV_FREQUENT_CHECK; |
… | |
… | |
3143 | |
4510 | |
3144 | EV_FREQUENT_CHECK; |
4511 | EV_FREQUENT_CHECK; |
3145 | } |
4512 | } |
3146 | |
4513 | |
3147 | void |
4514 | void |
3148 | ev_embed_stop (EV_P_ ev_embed *w) |
4515 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3149 | { |
4516 | { |
3150 | clear_pending (EV_A_ (W)w); |
4517 | clear_pending (EV_A_ (W)w); |
3151 | if (expect_false (!ev_is_active (w))) |
4518 | if (expect_false (!ev_is_active (w))) |
3152 | return; |
4519 | return; |
3153 | |
4520 | |
… | |
… | |
3155 | |
4522 | |
3156 | ev_io_stop (EV_A_ &w->io); |
4523 | ev_io_stop (EV_A_ &w->io); |
3157 | ev_prepare_stop (EV_A_ &w->prepare); |
4524 | ev_prepare_stop (EV_A_ &w->prepare); |
3158 | ev_fork_stop (EV_A_ &w->fork); |
4525 | ev_fork_stop (EV_A_ &w->fork); |
3159 | |
4526 | |
|
|
4527 | ev_stop (EV_A_ (W)w); |
|
|
4528 | |
3160 | EV_FREQUENT_CHECK; |
4529 | EV_FREQUENT_CHECK; |
3161 | } |
4530 | } |
3162 | #endif |
4531 | #endif |
3163 | |
4532 | |
3164 | #if EV_FORK_ENABLE |
4533 | #if EV_FORK_ENABLE |
3165 | void |
4534 | void |
3166 | ev_fork_start (EV_P_ ev_fork *w) |
4535 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3167 | { |
4536 | { |
3168 | if (expect_false (ev_is_active (w))) |
4537 | if (expect_false (ev_is_active (w))) |
3169 | return; |
4538 | return; |
3170 | |
4539 | |
3171 | EV_FREQUENT_CHECK; |
4540 | EV_FREQUENT_CHECK; |
… | |
… | |
3176 | |
4545 | |
3177 | EV_FREQUENT_CHECK; |
4546 | EV_FREQUENT_CHECK; |
3178 | } |
4547 | } |
3179 | |
4548 | |
3180 | void |
4549 | void |
3181 | ev_fork_stop (EV_P_ ev_fork *w) |
4550 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3182 | { |
4551 | { |
3183 | clear_pending (EV_A_ (W)w); |
4552 | clear_pending (EV_A_ (W)w); |
3184 | if (expect_false (!ev_is_active (w))) |
4553 | if (expect_false (!ev_is_active (w))) |
3185 | return; |
4554 | return; |
3186 | |
4555 | |
… | |
… | |
3197 | |
4566 | |
3198 | EV_FREQUENT_CHECK; |
4567 | EV_FREQUENT_CHECK; |
3199 | } |
4568 | } |
3200 | #endif |
4569 | #endif |
3201 | |
4570 | |
|
|
4571 | #if EV_CLEANUP_ENABLE |
|
|
4572 | void |
|
|
4573 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4574 | { |
|
|
4575 | if (expect_false (ev_is_active (w))) |
|
|
4576 | return; |
|
|
4577 | |
|
|
4578 | EV_FREQUENT_CHECK; |
|
|
4579 | |
|
|
4580 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4581 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4582 | cleanups [cleanupcnt - 1] = w; |
|
|
4583 | |
|
|
4584 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4585 | ev_unref (EV_A); |
|
|
4586 | EV_FREQUENT_CHECK; |
|
|
4587 | } |
|
|
4588 | |
|
|
4589 | void |
|
|
4590 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4591 | { |
|
|
4592 | clear_pending (EV_A_ (W)w); |
|
|
4593 | if (expect_false (!ev_is_active (w))) |
|
|
4594 | return; |
|
|
4595 | |
|
|
4596 | EV_FREQUENT_CHECK; |
|
|
4597 | ev_ref (EV_A); |
|
|
4598 | |
|
|
4599 | { |
|
|
4600 | int active = ev_active (w); |
|
|
4601 | |
|
|
4602 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4603 | ev_active (cleanups [active - 1]) = active; |
|
|
4604 | } |
|
|
4605 | |
|
|
4606 | ev_stop (EV_A_ (W)w); |
|
|
4607 | |
|
|
4608 | EV_FREQUENT_CHECK; |
|
|
4609 | } |
|
|
4610 | #endif |
|
|
4611 | |
3202 | #if EV_ASYNC_ENABLE |
4612 | #if EV_ASYNC_ENABLE |
3203 | void |
4613 | void |
3204 | ev_async_start (EV_P_ ev_async *w) |
4614 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3205 | { |
4615 | { |
3206 | if (expect_false (ev_is_active (w))) |
4616 | if (expect_false (ev_is_active (w))) |
3207 | return; |
4617 | return; |
|
|
4618 | |
|
|
4619 | w->sent = 0; |
3208 | |
4620 | |
3209 | evpipe_init (EV_A); |
4621 | evpipe_init (EV_A); |
3210 | |
4622 | |
3211 | EV_FREQUENT_CHECK; |
4623 | EV_FREQUENT_CHECK; |
3212 | |
4624 | |
… | |
… | |
3216 | |
4628 | |
3217 | EV_FREQUENT_CHECK; |
4629 | EV_FREQUENT_CHECK; |
3218 | } |
4630 | } |
3219 | |
4631 | |
3220 | void |
4632 | void |
3221 | ev_async_stop (EV_P_ ev_async *w) |
4633 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3222 | { |
4634 | { |
3223 | clear_pending (EV_A_ (W)w); |
4635 | clear_pending (EV_A_ (W)w); |
3224 | if (expect_false (!ev_is_active (w))) |
4636 | if (expect_false (!ev_is_active (w))) |
3225 | return; |
4637 | return; |
3226 | |
4638 | |
… | |
… | |
3237 | |
4649 | |
3238 | EV_FREQUENT_CHECK; |
4650 | EV_FREQUENT_CHECK; |
3239 | } |
4651 | } |
3240 | |
4652 | |
3241 | void |
4653 | void |
3242 | ev_async_send (EV_P_ ev_async *w) |
4654 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3243 | { |
4655 | { |
3244 | w->sent = 1; |
4656 | w->sent = 1; |
3245 | evpipe_write (EV_A_ &gotasync); |
4657 | evpipe_write (EV_A_ &async_pending); |
3246 | } |
4658 | } |
3247 | #endif |
4659 | #endif |
3248 | |
4660 | |
3249 | /*****************************************************************************/ |
4661 | /*****************************************************************************/ |
3250 | |
4662 | |
… | |
… | |
3284 | |
4696 | |
3285 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4697 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3286 | } |
4698 | } |
3287 | |
4699 | |
3288 | void |
4700 | void |
3289 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4701 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3290 | { |
4702 | { |
3291 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4703 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3292 | |
4704 | |
3293 | if (expect_false (!once)) |
4705 | if (expect_false (!once)) |
3294 | { |
4706 | { |
3295 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4707 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3296 | return; |
4708 | return; |
3297 | } |
4709 | } |
3298 | |
4710 | |
3299 | once->cb = cb; |
4711 | once->cb = cb; |
3300 | once->arg = arg; |
4712 | once->arg = arg; |
… | |
… | |
3315 | } |
4727 | } |
3316 | |
4728 | |
3317 | /*****************************************************************************/ |
4729 | /*****************************************************************************/ |
3318 | |
4730 | |
3319 | #if EV_WALK_ENABLE |
4731 | #if EV_WALK_ENABLE |
3320 | void |
4732 | void ecb_cold |
3321 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4733 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3322 | { |
4734 | { |
3323 | int i, j; |
4735 | int i, j; |
3324 | ev_watcher_list *wl, *wn; |
4736 | ev_watcher_list *wl, *wn; |
3325 | |
4737 | |
3326 | if (types & (EV_IO | EV_EMBED)) |
4738 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3369 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4781 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3370 | #endif |
4782 | #endif |
3371 | |
4783 | |
3372 | #if EV_IDLE_ENABLE |
4784 | #if EV_IDLE_ENABLE |
3373 | if (types & EV_IDLE) |
4785 | if (types & EV_IDLE) |
3374 | for (j = NUMPRI; i--; ) |
4786 | for (j = NUMPRI; j--; ) |
3375 | for (i = idlecnt [j]; i--; ) |
4787 | for (i = idlecnt [j]; i--; ) |
3376 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4788 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3377 | #endif |
4789 | #endif |
3378 | |
4790 | |
3379 | #if EV_FORK_ENABLE |
4791 | #if EV_FORK_ENABLE |
… | |
… | |
3387 | if (types & EV_ASYNC) |
4799 | if (types & EV_ASYNC) |
3388 | for (i = asynccnt; i--; ) |
4800 | for (i = asynccnt; i--; ) |
3389 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
4801 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3390 | #endif |
4802 | #endif |
3391 | |
4803 | |
|
|
4804 | #if EV_PREPARE_ENABLE |
3392 | if (types & EV_PREPARE) |
4805 | if (types & EV_PREPARE) |
3393 | for (i = preparecnt; i--; ) |
4806 | for (i = preparecnt; i--; ) |
3394 | #if EV_EMBED_ENABLE |
4807 | # if EV_EMBED_ENABLE |
3395 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
4808 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3396 | #endif |
4809 | # endif |
3397 | cb (EV_A_ EV_PREPARE, prepares [i]); |
4810 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4811 | #endif |
3398 | |
4812 | |
|
|
4813 | #if EV_CHECK_ENABLE |
3399 | if (types & EV_CHECK) |
4814 | if (types & EV_CHECK) |
3400 | for (i = checkcnt; i--; ) |
4815 | for (i = checkcnt; i--; ) |
3401 | cb (EV_A_ EV_CHECK, checks [i]); |
4816 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4817 | #endif |
3402 | |
4818 | |
|
|
4819 | #if EV_SIGNAL_ENABLE |
3403 | if (types & EV_SIGNAL) |
4820 | if (types & EV_SIGNAL) |
3404 | for (i = 0; i < signalmax; ++i) |
4821 | for (i = 0; i < EV_NSIG - 1; ++i) |
3405 | for (wl = signals [i].head; wl; ) |
4822 | for (wl = signals [i].head; wl; ) |
3406 | { |
4823 | { |
3407 | wn = wl->next; |
4824 | wn = wl->next; |
3408 | cb (EV_A_ EV_SIGNAL, wl); |
4825 | cb (EV_A_ EV_SIGNAL, wl); |
3409 | wl = wn; |
4826 | wl = wn; |
3410 | } |
4827 | } |
|
|
4828 | #endif |
3411 | |
4829 | |
|
|
4830 | #if EV_CHILD_ENABLE |
3412 | if (types & EV_CHILD) |
4831 | if (types & EV_CHILD) |
3413 | for (i = EV_PID_HASHSIZE; i--; ) |
4832 | for (i = (EV_PID_HASHSIZE); i--; ) |
3414 | for (wl = childs [i]; wl; ) |
4833 | for (wl = childs [i]; wl; ) |
3415 | { |
4834 | { |
3416 | wn = wl->next; |
4835 | wn = wl->next; |
3417 | cb (EV_A_ EV_CHILD, wl); |
4836 | cb (EV_A_ EV_CHILD, wl); |
3418 | wl = wn; |
4837 | wl = wn; |
3419 | } |
4838 | } |
|
|
4839 | #endif |
3420 | /* EV_STAT 0x00001000 /* stat data changed */ |
4840 | /* EV_STAT 0x00001000 /* stat data changed */ |
3421 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
4841 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3422 | } |
4842 | } |
3423 | #endif |
4843 | #endif |
3424 | |
4844 | |
3425 | #if EV_MULTIPLICITY |
4845 | #if EV_MULTIPLICITY |
3426 | #include "ev_wrap.h" |
4846 | #include "ev_wrap.h" |
3427 | #endif |
4847 | #endif |
3428 | |
4848 | |
3429 | #ifdef __cplusplus |
|
|
3430 | } |
|
|
3431 | #endif |
|
|
3432 | |
|
|