1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
51 | |
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
|
|
53 | |
|
|
54 | # if HAVE_CLOCK_SYSCALL |
|
|
55 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
56 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
57 | # ifndef EV_USE_REALTIME |
|
|
58 | # define EV_USE_REALTIME 0 |
|
|
59 | # endif |
|
|
60 | # ifndef EV_USE_MONOTONIC |
|
|
61 | # define EV_USE_MONOTONIC 1 |
|
|
62 | # endif |
|
|
63 | # endif |
|
|
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
66 | # endif |
|
|
67 | |
52 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
71 | # endif |
56 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
58 | # endif |
74 | # endif |
59 | # else |
75 | # else |
60 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
78 | # endif |
63 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
65 | # endif |
81 | # endif |
66 | # endif |
82 | # endif |
67 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
71 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
74 | # endif |
100 | # endif |
75 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
105 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
109 | # endif |
91 | |
110 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
95 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
98 | # endif |
118 | # endif |
99 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
100 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
106 | # endif |
127 | # endif |
107 | |
128 | |
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
111 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
114 | # endif |
136 | # endif |
115 | |
137 | |
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
121 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
122 | # endif |
145 | # endif |
123 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
124 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
125 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
130 | # endif |
154 | # endif |
131 | |
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 |
132 | #endif |
163 | # endif |
|
|
164 | |
|
|
165 | #endif |
133 | |
166 | |
134 | #include <math.h> |
|
|
135 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
136 | #include <fcntl.h> |
169 | #include <fcntl.h> |
137 | #include <stddef.h> |
170 | #include <stddef.h> |
138 | |
171 | |
139 | #include <stdio.h> |
172 | #include <stdio.h> |
140 | |
173 | |
141 | #include <assert.h> |
174 | #include <assert.h> |
142 | #include <errno.h> |
175 | #include <errno.h> |
143 | #include <sys/types.h> |
176 | #include <sys/types.h> |
144 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
145 | |
179 | |
146 | #include <signal.h> |
180 | #include <signal.h> |
147 | |
181 | |
148 | #ifdef EV_H |
182 | #ifdef EV_H |
149 | # include EV_H |
183 | # include EV_H |
150 | #else |
184 | #else |
151 | # include "ev.h" |
185 | # include "ev.h" |
|
|
186 | #endif |
|
|
187 | |
|
|
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
152 | #endif |
197 | #endif |
153 | |
198 | |
154 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
200 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
157 | # include <unistd.h> |
202 | # include <unistd.h> |
158 | #else |
203 | #else |
|
|
204 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
160 | # include <windows.h> |
207 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
210 | # endif |
|
|
211 | # undef EV_AVOID_STDIO |
164 | #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 |
165 | |
221 | |
166 | /* 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 */ |
167 | |
223 | |
|
|
224 | /* try to deduce the maximum number of signals on this platform */ |
|
|
225 | #if defined EV_NSIG |
|
|
226 | /* use what's provided */ |
|
|
227 | #elif defined NSIG |
|
|
228 | # define EV_NSIG (NSIG) |
|
|
229 | #elif defined _NSIG |
|
|
230 | # define EV_NSIG (_NSIG) |
|
|
231 | #elif defined SIGMAX |
|
|
232 | # define EV_NSIG (SIGMAX+1) |
|
|
233 | #elif defined SIG_MAX |
|
|
234 | # define EV_NSIG (SIG_MAX+1) |
|
|
235 | #elif defined _SIG_MAX |
|
|
236 | # define EV_NSIG (_SIG_MAX+1) |
|
|
237 | #elif defined MAXSIG |
|
|
238 | # define EV_NSIG (MAXSIG+1) |
|
|
239 | #elif defined MAX_SIG |
|
|
240 | # define EV_NSIG (MAX_SIG+1) |
|
|
241 | #elif defined SIGARRAYSIZE |
|
|
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
243 | #elif defined _sys_nsig |
|
|
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
245 | #else |
|
|
246 | # error "unable to find value for NSIG, please report" |
|
|
247 | /* to make it compile regardless, just remove the above line, */ |
|
|
248 | /* but consider reporting it, too! :) */ |
|
|
249 | # define EV_NSIG 65 |
|
|
250 | #endif |
|
|
251 | |
|
|
252 | #ifndef EV_USE_FLOOR |
|
|
253 | # define EV_USE_FLOOR 0 |
|
|
254 | #endif |
|
|
255 | |
|
|
256 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
257 | # if __linux && __GLIBC__ >= 2 |
|
|
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
259 | # else |
|
|
260 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
261 | # endif |
|
|
262 | #endif |
|
|
263 | |
168 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
|
|
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
267 | # else |
169 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
|
|
269 | # endif |
170 | #endif |
270 | #endif |
171 | |
271 | |
172 | #ifndef EV_USE_REALTIME |
272 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
273 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
274 | #endif |
175 | |
275 | |
176 | #ifndef EV_USE_NANOSLEEP |
276 | #ifndef EV_USE_NANOSLEEP |
|
|
277 | # if _POSIX_C_SOURCE >= 199309L |
|
|
278 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
279 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
280 | # define EV_USE_NANOSLEEP 0 |
|
|
281 | # endif |
178 | #endif |
282 | #endif |
179 | |
283 | |
180 | #ifndef EV_USE_SELECT |
284 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
285 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
286 | #endif |
183 | |
287 | |
184 | #ifndef EV_USE_POLL |
288 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
289 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
290 | # define EV_USE_POLL 0 |
187 | # else |
291 | # else |
188 | # define EV_USE_POLL 1 |
292 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
293 | # endif |
190 | #endif |
294 | #endif |
191 | |
295 | |
192 | #ifndef EV_USE_EPOLL |
296 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
297 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
298 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
299 | # else |
196 | # define EV_USE_EPOLL 0 |
300 | # define EV_USE_EPOLL 0 |
197 | # endif |
301 | # endif |
198 | #endif |
302 | #endif |
199 | |
303 | |
… | |
… | |
205 | # define EV_USE_PORT 0 |
309 | # define EV_USE_PORT 0 |
206 | #endif |
310 | #endif |
207 | |
311 | |
208 | #ifndef EV_USE_INOTIFY |
312 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
315 | # else |
212 | # define EV_USE_INOTIFY 0 |
316 | # define EV_USE_INOTIFY 0 |
213 | # endif |
317 | # endif |
214 | #endif |
318 | #endif |
215 | |
319 | |
216 | #ifndef EV_PID_HASHSIZE |
320 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
321 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
218 | # define EV_PID_HASHSIZE 1 |
|
|
219 | # else |
|
|
220 | # define EV_PID_HASHSIZE 16 |
|
|
221 | # endif |
|
|
222 | #endif |
322 | #endif |
223 | |
323 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
324 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
325 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
226 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
227 | # else |
|
|
228 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
229 | # endif |
|
|
230 | #endif |
326 | #endif |
231 | |
327 | |
232 | #ifndef EV_USE_EVENTFD |
328 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
329 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
330 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
331 | # else |
236 | # define EV_USE_EVENTFD 0 |
332 | # define EV_USE_EVENTFD 0 |
237 | # endif |
333 | # endif |
238 | #endif |
334 | #endif |
239 | |
335 | |
|
|
336 | #ifndef EV_USE_SIGNALFD |
|
|
337 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
338 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
339 | # else |
|
|
340 | # define EV_USE_SIGNALFD 0 |
|
|
341 | # endif |
|
|
342 | #endif |
|
|
343 | |
|
|
344 | #if 0 /* debugging */ |
|
|
345 | # define EV_VERIFY 3 |
|
|
346 | # define EV_USE_4HEAP 1 |
|
|
347 | # define EV_HEAP_CACHE_AT 1 |
|
|
348 | #endif |
|
|
349 | |
|
|
350 | #ifndef EV_VERIFY |
|
|
351 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
352 | #endif |
|
|
353 | |
240 | #ifndef EV_USE_4HEAP |
354 | #ifndef EV_USE_4HEAP |
241 | # define EV_USE_4HEAP !EV_MINIMAL |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
242 | #endif |
356 | #endif |
243 | |
357 | |
244 | #ifndef EV_HEAP_CACHE_AT |
358 | #ifndef EV_HEAP_CACHE_AT |
245 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
360 | #endif |
|
|
361 | |
|
|
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
363 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
364 | #if EV_USE_CLOCK_SYSCALL |
|
|
365 | # include <sys/syscall.h> |
|
|
366 | # ifdef SYS_clock_gettime |
|
|
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
368 | # undef EV_USE_MONOTONIC |
|
|
369 | # define EV_USE_MONOTONIC 1 |
|
|
370 | # else |
|
|
371 | # undef EV_USE_CLOCK_SYSCALL |
|
|
372 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
373 | # endif |
246 | #endif |
374 | #endif |
247 | |
375 | |
248 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
377 | |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
|
|
382 | #endif |
249 | |
383 | |
250 | #ifndef CLOCK_MONOTONIC |
384 | #ifndef CLOCK_MONOTONIC |
251 | # undef EV_USE_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
252 | # define EV_USE_MONOTONIC 0 |
386 | # define EV_USE_MONOTONIC 0 |
253 | #endif |
387 | #endif |
… | |
… | |
261 | # undef EV_USE_INOTIFY |
395 | # undef EV_USE_INOTIFY |
262 | # define EV_USE_INOTIFY 0 |
396 | # define EV_USE_INOTIFY 0 |
263 | #endif |
397 | #endif |
264 | |
398 | |
265 | #if !EV_USE_NANOSLEEP |
399 | #if !EV_USE_NANOSLEEP |
266 | # ifndef _WIN32 |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
401 | # if !defined _WIN32 && !defined __hpux |
267 | # include <sys/select.h> |
402 | # include <sys/select.h> |
268 | # endif |
403 | # endif |
269 | #endif |
404 | #endif |
270 | |
405 | |
271 | #if EV_USE_INOTIFY |
406 | #if EV_USE_INOTIFY |
|
|
407 | # include <sys/statfs.h> |
272 | # include <sys/inotify.h> |
408 | # include <sys/inotify.h> |
|
|
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
410 | # ifndef IN_DONT_FOLLOW |
|
|
411 | # undef EV_USE_INOTIFY |
|
|
412 | # define EV_USE_INOTIFY 0 |
273 | #endif |
413 | # endif |
274 | |
|
|
275 | #if EV_SELECT_IS_WINSOCKET |
|
|
276 | # include <winsock.h> |
|
|
277 | #endif |
414 | #endif |
278 | |
415 | |
279 | #if EV_USE_EVENTFD |
416 | #if EV_USE_EVENTFD |
280 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
281 | # include <stdint.h> |
418 | # include <stdint.h> |
282 | # ifdef __cplusplus |
419 | # ifndef EFD_NONBLOCK |
283 | extern "C" { |
420 | # define EFD_NONBLOCK O_NONBLOCK |
284 | # endif |
421 | # endif |
285 | int eventfd (unsigned int initval, int flags); |
422 | # ifndef EFD_CLOEXEC |
286 | # ifdef __cplusplus |
423 | # ifdef O_CLOEXEC |
287 | } |
424 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
425 | # else |
|
|
426 | # define EFD_CLOEXEC 02000000 |
|
|
427 | # endif |
288 | # endif |
428 | # endif |
|
|
429 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
430 | #endif |
|
|
431 | |
|
|
432 | #if EV_USE_SIGNALFD |
|
|
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
434 | # include <stdint.h> |
|
|
435 | # ifndef SFD_NONBLOCK |
|
|
436 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
437 | # endif |
|
|
438 | # ifndef SFD_CLOEXEC |
|
|
439 | # ifdef O_CLOEXEC |
|
|
440 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
441 | # else |
|
|
442 | # define SFD_CLOEXEC 02000000 |
|
|
443 | # endif |
|
|
444 | # endif |
|
|
445 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
446 | |
|
|
447 | struct signalfd_siginfo |
|
|
448 | { |
|
|
449 | uint32_t ssi_signo; |
|
|
450 | char pad[128 - sizeof (uint32_t)]; |
|
|
451 | }; |
289 | #endif |
452 | #endif |
290 | |
453 | |
291 | /**/ |
454 | /**/ |
292 | |
455 | |
|
|
456 | #if EV_VERIFY >= 3 |
|
|
457 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
458 | #else |
|
|
459 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
460 | #endif |
|
|
461 | |
293 | /* |
462 | /* |
294 | * This is used to avoid floating point rounding problems. |
463 | * This is used to work around floating point rounding problems. |
295 | * It is added to ev_rt_now when scheduling periodics |
|
|
296 | * to ensure progress, time-wise, even when rounding |
|
|
297 | * errors are against us. |
|
|
298 | * This value is good at least till the year 4000. |
464 | * This value is good at least till the year 4000. |
299 | * Better solutions welcome. |
|
|
300 | */ |
465 | */ |
301 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
466 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
467 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
302 | |
468 | |
303 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
469 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
304 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
305 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
306 | |
471 | |
|
|
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
474 | |
|
|
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
476 | /* ECB.H BEGIN */ |
|
|
477 | /* |
|
|
478 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
479 | * |
|
|
480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
481 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
482 | * All rights reserved. |
|
|
483 | * |
|
|
484 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
485 | * tion, are permitted provided that the following conditions are met: |
|
|
486 | * |
|
|
487 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
488 | * this list of conditions and the following disclaimer. |
|
|
489 | * |
|
|
490 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
491 | * notice, this list of conditions and the following disclaimer in the |
|
|
492 | * documentation and/or other materials provided with the distribution. |
|
|
493 | * |
|
|
494 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
495 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
496 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
497 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
498 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
504 | */ |
|
|
505 | |
|
|
506 | #ifndef ECB_H |
|
|
507 | #define ECB_H |
|
|
508 | |
|
|
509 | /* 16 bits major, 16 bits minor */ |
|
|
510 | #define ECB_VERSION 0x00010002 |
|
|
511 | |
|
|
512 | #ifdef _WIN32 |
|
|
513 | typedef signed char int8_t; |
|
|
514 | typedef unsigned char uint8_t; |
|
|
515 | typedef signed short int16_t; |
|
|
516 | typedef unsigned short uint16_t; |
|
|
517 | typedef signed int int32_t; |
|
|
518 | typedef unsigned int uint32_t; |
307 | #if __GNUC__ >= 4 |
519 | #if __GNUC__ |
308 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
520 | typedef signed long long int64_t; |
309 | # define noinline __attribute__ ((noinline)) |
521 | typedef unsigned long long uint64_t; |
|
|
522 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
523 | typedef signed __int64 int64_t; |
|
|
524 | typedef unsigned __int64 uint64_t; |
|
|
525 | #endif |
|
|
526 | #ifdef _WIN64 |
|
|
527 | #define ECB_PTRSIZE 8 |
|
|
528 | typedef uint64_t uintptr_t; |
|
|
529 | typedef int64_t intptr_t; |
|
|
530 | #else |
|
|
531 | #define ECB_PTRSIZE 4 |
|
|
532 | typedef uint32_t uintptr_t; |
|
|
533 | typedef int32_t intptr_t; |
|
|
534 | #endif |
310 | #else |
535 | #else |
311 | # define expect(expr,value) (expr) |
536 | #include <inttypes.h> |
312 | # define noinline |
537 | #if UINTMAX_MAX > 0xffffffffU |
313 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
538 | #define ECB_PTRSIZE 8 |
314 | # define inline |
539 | #else |
|
|
540 | #define ECB_PTRSIZE 4 |
|
|
541 | #endif |
315 | # endif |
542 | #endif |
|
|
543 | |
|
|
544 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
545 | * what their idiot authors think are the "more important" extensions, |
|
|
546 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
547 | * or so. |
|
|
548 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
549 | * an issue with that they should have done it right in the first place. |
|
|
550 | */ |
|
|
551 | #ifndef ECB_GCC_VERSION |
|
|
552 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
553 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
554 | #else |
|
|
555 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
316 | #endif |
556 | #endif |
|
|
557 | #endif |
317 | |
558 | |
|
|
559 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
560 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
561 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
562 | #define ECB_CPP (__cplusplus+0) |
|
|
563 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
564 | |
|
|
565 | #if ECB_CPP |
|
|
566 | #define ECB_EXTERN_C extern "C" |
|
|
567 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
568 | #define ECB_EXTERN_C_END } |
|
|
569 | #else |
|
|
570 | #define ECB_EXTERN_C extern |
|
|
571 | #define ECB_EXTERN_C_BEG |
|
|
572 | #define ECB_EXTERN_C_END |
|
|
573 | #endif |
|
|
574 | |
|
|
575 | /*****************************************************************************/ |
|
|
576 | |
|
|
577 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
578 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
579 | |
|
|
580 | #if ECB_NO_THREADS |
|
|
581 | #define ECB_NO_SMP 1 |
|
|
582 | #endif |
|
|
583 | |
|
|
584 | #if ECB_NO_SMP |
|
|
585 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
586 | #endif |
|
|
587 | |
|
|
588 | #ifndef ECB_MEMORY_FENCE |
|
|
589 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
590 | #if __i386 || __i386__ |
|
|
591 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
592 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
593 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
594 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
595 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
596 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
597 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
598 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
599 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
600 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
601 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
603 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
604 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
606 | #elif __sparc || __sparc__ |
|
|
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
610 | #elif defined __s390__ || defined __s390x__ |
|
|
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
612 | #elif defined __mips__ |
|
|
613 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
614 | #elif defined __alpha__ |
|
|
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
616 | #elif defined __hppa__ |
|
|
617 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
618 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
619 | #elif defined __ia64__ |
|
|
620 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
621 | #endif |
|
|
622 | #endif |
|
|
623 | #endif |
|
|
624 | |
|
|
625 | #ifndef ECB_MEMORY_FENCE |
|
|
626 | #if ECB_GCC_VERSION(4,7) |
|
|
627 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
628 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
629 | |
|
|
630 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
631 | * without risking compile time errors with other compilers. We *could* |
|
|
632 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
633 | * around this shit time and again. |
|
|
634 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
635 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
636 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
637 | */ |
|
|
638 | |
|
|
639 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
640 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
641 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
642 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
643 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
644 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
645 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
646 | #elif defined _WIN32 |
|
|
647 | #include <WinNT.h> |
|
|
648 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
649 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
650 | #include <mbarrier.h> |
|
|
651 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
652 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
653 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
654 | #elif __xlC__ |
|
|
655 | #define ECB_MEMORY_FENCE __sync () |
|
|
656 | #endif |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | #ifndef ECB_MEMORY_FENCE |
|
|
660 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
661 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
662 | /* not just C11 atomics and atomic accesses */ |
|
|
663 | #include <stdatomic.h> |
|
|
664 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
665 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
666 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
667 | /* for most usages, or gcc and clang have a bug */ |
|
|
668 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
669 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
670 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
671 | #endif |
|
|
672 | #endif |
|
|
673 | |
|
|
674 | #ifndef ECB_MEMORY_FENCE |
|
|
675 | #if !ECB_AVOID_PTHREADS |
|
|
676 | /* |
|
|
677 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
678 | * or failure to find pthread.h, then you should implement |
|
|
679 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
680 | * OR provide pthread.h and link against the posix thread library |
|
|
681 | * of your system. |
|
|
682 | */ |
|
|
683 | #include <pthread.h> |
|
|
684 | #define ECB_NEEDS_PTHREADS 1 |
|
|
685 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
686 | |
|
|
687 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
688 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
689 | #endif |
|
|
690 | #endif |
|
|
691 | |
|
|
692 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
693 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
694 | #endif |
|
|
695 | |
|
|
696 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
697 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
698 | #endif |
|
|
699 | |
|
|
700 | /*****************************************************************************/ |
|
|
701 | |
|
|
702 | #if __cplusplus |
|
|
703 | #define ecb_inline static inline |
|
|
704 | #elif ECB_GCC_VERSION(2,5) |
|
|
705 | #define ecb_inline static __inline__ |
|
|
706 | #elif ECB_C99 |
|
|
707 | #define ecb_inline static inline |
|
|
708 | #else |
|
|
709 | #define ecb_inline static |
|
|
710 | #endif |
|
|
711 | |
|
|
712 | #if ECB_GCC_VERSION(3,3) |
|
|
713 | #define ecb_restrict __restrict__ |
|
|
714 | #elif ECB_C99 |
|
|
715 | #define ecb_restrict restrict |
|
|
716 | #else |
|
|
717 | #define ecb_restrict |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | typedef int ecb_bool; |
|
|
721 | |
|
|
722 | #define ECB_CONCAT_(a, b) a ## b |
|
|
723 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
724 | #define ECB_STRINGIFY_(a) # a |
|
|
725 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
726 | |
|
|
727 | #define ecb_function_ ecb_inline |
|
|
728 | |
|
|
729 | #if ECB_GCC_VERSION(3,1) |
|
|
730 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
731 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
732 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
733 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
734 | #else |
|
|
735 | #define ecb_attribute(attrlist) |
|
|
736 | #define ecb_is_constant(expr) 0 |
|
|
737 | #define ecb_expect(expr,value) (expr) |
|
|
738 | #define ecb_prefetch(addr,rw,locality) |
|
|
739 | #endif |
|
|
740 | |
|
|
741 | /* no emulation for ecb_decltype */ |
|
|
742 | #if ECB_GCC_VERSION(4,5) |
|
|
743 | #define ecb_decltype(x) __decltype(x) |
|
|
744 | #elif ECB_GCC_VERSION(3,0) |
|
|
745 | #define ecb_decltype(x) __typeof(x) |
|
|
746 | #endif |
|
|
747 | |
|
|
748 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
749 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
750 | #define ecb_const ecb_attribute ((__const__)) |
|
|
751 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
752 | |
|
|
753 | #if ECB_C11 |
|
|
754 | #define ecb_noreturn _Noreturn |
|
|
755 | #else |
|
|
756 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
757 | #endif |
|
|
758 | |
|
|
759 | #if ECB_GCC_VERSION(4,3) |
|
|
760 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
761 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
762 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
763 | #else |
|
|
764 | #define ecb_artificial |
|
|
765 | #define ecb_hot |
|
|
766 | #define ecb_cold |
|
|
767 | #endif |
|
|
768 | |
|
|
769 | /* put around conditional expressions if you are very sure that the */ |
|
|
770 | /* expression is mostly true or mostly false. note that these return */ |
|
|
771 | /* booleans, not the expression. */ |
318 | #define expect_false(expr) expect ((expr) != 0, 0) |
772 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
319 | #define expect_true(expr) expect ((expr) != 0, 1) |
773 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
774 | /* for compatibility to the rest of the world */ |
|
|
775 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
776 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
777 | |
|
|
778 | /* count trailing zero bits and count # of one bits */ |
|
|
779 | #if ECB_GCC_VERSION(3,4) |
|
|
780 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
781 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
782 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
783 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
784 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
785 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
786 | /* no popcountll */ |
|
|
787 | #else |
|
|
788 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
789 | ecb_function_ int |
|
|
790 | ecb_ctz32 (uint32_t x) |
|
|
791 | { |
|
|
792 | int r = 0; |
|
|
793 | |
|
|
794 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
795 | |
|
|
796 | #if ECB_branchless_on_i386 |
|
|
797 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
798 | r += !!(x & 0xcccccccc) << 1; |
|
|
799 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
800 | r += !!(x & 0xff00ff00) << 3; |
|
|
801 | r += !!(x & 0xffff0000) << 4; |
|
|
802 | #else |
|
|
803 | if (x & 0xaaaaaaaa) r += 1; |
|
|
804 | if (x & 0xcccccccc) r += 2; |
|
|
805 | if (x & 0xf0f0f0f0) r += 4; |
|
|
806 | if (x & 0xff00ff00) r += 8; |
|
|
807 | if (x & 0xffff0000) r += 16; |
|
|
808 | #endif |
|
|
809 | |
|
|
810 | return r; |
|
|
811 | } |
|
|
812 | |
|
|
813 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
814 | ecb_function_ int |
|
|
815 | ecb_ctz64 (uint64_t x) |
|
|
816 | { |
|
|
817 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
818 | return ecb_ctz32 (x >> shift) + shift; |
|
|
819 | } |
|
|
820 | |
|
|
821 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
822 | ecb_function_ int |
|
|
823 | ecb_popcount32 (uint32_t x) |
|
|
824 | { |
|
|
825 | x -= (x >> 1) & 0x55555555; |
|
|
826 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
827 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
828 | x *= 0x01010101; |
|
|
829 | |
|
|
830 | return x >> 24; |
|
|
831 | } |
|
|
832 | |
|
|
833 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
834 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
835 | { |
|
|
836 | int r = 0; |
|
|
837 | |
|
|
838 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
839 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
840 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
841 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
842 | if (x >> 1) { r += 1; } |
|
|
843 | |
|
|
844 | return r; |
|
|
845 | } |
|
|
846 | |
|
|
847 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
848 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
849 | { |
|
|
850 | int r = 0; |
|
|
851 | |
|
|
852 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
853 | |
|
|
854 | return r + ecb_ld32 (x); |
|
|
855 | } |
|
|
856 | #endif |
|
|
857 | |
|
|
858 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
859 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
860 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
861 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
862 | |
|
|
863 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
864 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
865 | { |
|
|
866 | return ( (x * 0x0802U & 0x22110U) |
|
|
867 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
868 | } |
|
|
869 | |
|
|
870 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
871 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
872 | { |
|
|
873 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
874 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
875 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
876 | x = ( x >> 8 ) | ( x << 8); |
|
|
877 | |
|
|
878 | return x; |
|
|
879 | } |
|
|
880 | |
|
|
881 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
882 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
883 | { |
|
|
884 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
885 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
886 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
887 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
888 | x = ( x >> 16 ) | ( x << 16); |
|
|
889 | |
|
|
890 | return x; |
|
|
891 | } |
|
|
892 | |
|
|
893 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
894 | /* so for this version we are lazy */ |
|
|
895 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
896 | ecb_function_ int |
|
|
897 | ecb_popcount64 (uint64_t x) |
|
|
898 | { |
|
|
899 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
900 | } |
|
|
901 | |
|
|
902 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
903 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
904 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
905 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
906 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
907 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
908 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
909 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
910 | |
|
|
911 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
912 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
913 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
914 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
915 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
916 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
917 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
918 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
919 | |
|
|
920 | #if ECB_GCC_VERSION(4,3) |
|
|
921 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
922 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
923 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
924 | #else |
|
|
925 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
926 | ecb_function_ uint16_t |
|
|
927 | ecb_bswap16 (uint16_t x) |
|
|
928 | { |
|
|
929 | return ecb_rotl16 (x, 8); |
|
|
930 | } |
|
|
931 | |
|
|
932 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
933 | ecb_function_ uint32_t |
|
|
934 | ecb_bswap32 (uint32_t x) |
|
|
935 | { |
|
|
936 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
937 | } |
|
|
938 | |
|
|
939 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
940 | ecb_function_ uint64_t |
|
|
941 | ecb_bswap64 (uint64_t x) |
|
|
942 | { |
|
|
943 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
944 | } |
|
|
945 | #endif |
|
|
946 | |
|
|
947 | #if ECB_GCC_VERSION(4,5) |
|
|
948 | #define ecb_unreachable() __builtin_unreachable () |
|
|
949 | #else |
|
|
950 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
951 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
952 | ecb_inline void ecb_unreachable (void) { } |
|
|
953 | #endif |
|
|
954 | |
|
|
955 | /* try to tell the compiler that some condition is definitely true */ |
|
|
956 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
957 | |
|
|
958 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
959 | ecb_inline unsigned char |
|
|
960 | ecb_byteorder_helper (void) |
|
|
961 | { |
|
|
962 | /* the union code still generates code under pressure in gcc, */ |
|
|
963 | /* but less than using pointers, and always seems to */ |
|
|
964 | /* successfully return a constant. */ |
|
|
965 | /* the reason why we have this horrible preprocessor mess */ |
|
|
966 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
967 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
968 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
969 | return 0x44; |
|
|
970 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
971 | return 0x44; |
|
|
972 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
973 | return 0x11; |
|
|
974 | #else |
|
|
975 | union |
|
|
976 | { |
|
|
977 | uint32_t i; |
|
|
978 | uint8_t c; |
|
|
979 | } u = { 0x11223344 }; |
|
|
980 | return u.c; |
|
|
981 | #endif |
|
|
982 | } |
|
|
983 | |
|
|
984 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
985 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
986 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
987 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
988 | |
|
|
989 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
990 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
991 | #else |
|
|
992 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
993 | #endif |
|
|
994 | |
|
|
995 | #if __cplusplus |
|
|
996 | template<typename T> |
|
|
997 | static inline T ecb_div_rd (T val, T div) |
|
|
998 | { |
|
|
999 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1000 | } |
|
|
1001 | template<typename T> |
|
|
1002 | static inline T ecb_div_ru (T val, T div) |
|
|
1003 | { |
|
|
1004 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1005 | } |
|
|
1006 | #else |
|
|
1007 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1008 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1009 | #endif |
|
|
1010 | |
|
|
1011 | #if ecb_cplusplus_does_not_suck |
|
|
1012 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1013 | template<typename T, int N> |
|
|
1014 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1015 | { |
|
|
1016 | return N; |
|
|
1017 | } |
|
|
1018 | #else |
|
|
1019 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | /*******************************************************************************/ |
|
|
1023 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1024 | |
|
|
1025 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1026 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1027 | #if 0 \ |
|
|
1028 | || __i386 || __i386__ \ |
|
|
1029 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1030 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1031 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1032 | || defined __s390__ || defined __s390x__ \ |
|
|
1033 | || defined __mips__ \ |
|
|
1034 | || defined __alpha__ \ |
|
|
1035 | || defined __hppa__ \ |
|
|
1036 | || defined __ia64__ \ |
|
|
1037 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1038 | #define ECB_STDFP 1 |
|
|
1039 | #include <string.h> /* for memcpy */ |
|
|
1040 | #else |
|
|
1041 | #define ECB_STDFP 0 |
|
|
1042 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1043 | #endif |
|
|
1044 | |
|
|
1045 | #ifndef ECB_NO_LIBM |
|
|
1046 | |
|
|
1047 | /* convert a float to ieee single/binary32 */ |
|
|
1048 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1049 | ecb_function_ uint32_t |
|
|
1050 | ecb_float_to_binary32 (float x) |
|
|
1051 | { |
|
|
1052 | uint32_t r; |
|
|
1053 | |
|
|
1054 | #if ECB_STDFP |
|
|
1055 | memcpy (&r, &x, 4); |
|
|
1056 | #else |
|
|
1057 | /* slow emulation, works for anything but -0 */ |
|
|
1058 | uint32_t m; |
|
|
1059 | int e; |
|
|
1060 | |
|
|
1061 | if (x == 0e0f ) return 0x00000000U; |
|
|
1062 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1063 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1064 | if (x != x ) return 0x7fbfffffU; |
|
|
1065 | |
|
|
1066 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1067 | |
|
|
1068 | r = m & 0x80000000U; |
|
|
1069 | |
|
|
1070 | if (r) |
|
|
1071 | m = -m; |
|
|
1072 | |
|
|
1073 | if (e <= -126) |
|
|
1074 | { |
|
|
1075 | m &= 0xffffffU; |
|
|
1076 | m >>= (-125 - e); |
|
|
1077 | e = -126; |
|
|
1078 | } |
|
|
1079 | |
|
|
1080 | r |= (e + 126) << 23; |
|
|
1081 | r |= m & 0x7fffffU; |
|
|
1082 | #endif |
|
|
1083 | |
|
|
1084 | return r; |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | /* converts an ieee single/binary32 to a float */ |
|
|
1088 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1089 | ecb_function_ float |
|
|
1090 | ecb_binary32_to_float (uint32_t x) |
|
|
1091 | { |
|
|
1092 | float r; |
|
|
1093 | |
|
|
1094 | #if ECB_STDFP |
|
|
1095 | memcpy (&r, &x, 4); |
|
|
1096 | #else |
|
|
1097 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1098 | int neg = x >> 31; |
|
|
1099 | int e = (x >> 23) & 0xffU; |
|
|
1100 | |
|
|
1101 | x &= 0x7fffffU; |
|
|
1102 | |
|
|
1103 | if (e) |
|
|
1104 | x |= 0x800000U; |
|
|
1105 | else |
|
|
1106 | e = 1; |
|
|
1107 | |
|
|
1108 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1109 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1110 | |
|
|
1111 | r = neg ? -r : r; |
|
|
1112 | #endif |
|
|
1113 | |
|
|
1114 | return r; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | /* convert a double to ieee double/binary64 */ |
|
|
1118 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1119 | ecb_function_ uint64_t |
|
|
1120 | ecb_double_to_binary64 (double x) |
|
|
1121 | { |
|
|
1122 | uint64_t r; |
|
|
1123 | |
|
|
1124 | #if ECB_STDFP |
|
|
1125 | memcpy (&r, &x, 8); |
|
|
1126 | #else |
|
|
1127 | /* slow emulation, works for anything but -0 */ |
|
|
1128 | uint64_t m; |
|
|
1129 | int e; |
|
|
1130 | |
|
|
1131 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1132 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1133 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1134 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1135 | |
|
|
1136 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1137 | |
|
|
1138 | r = m & 0x8000000000000000;; |
|
|
1139 | |
|
|
1140 | if (r) |
|
|
1141 | m = -m; |
|
|
1142 | |
|
|
1143 | if (e <= -1022) |
|
|
1144 | { |
|
|
1145 | m &= 0x1fffffffffffffU; |
|
|
1146 | m >>= (-1021 - e); |
|
|
1147 | e = -1022; |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1151 | r |= m & 0xfffffffffffffU; |
|
|
1152 | #endif |
|
|
1153 | |
|
|
1154 | return r; |
|
|
1155 | } |
|
|
1156 | |
|
|
1157 | /* converts an ieee double/binary64 to a double */ |
|
|
1158 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1159 | ecb_function_ double |
|
|
1160 | ecb_binary64_to_double (uint64_t x) |
|
|
1161 | { |
|
|
1162 | double r; |
|
|
1163 | |
|
|
1164 | #if ECB_STDFP |
|
|
1165 | memcpy (&r, &x, 8); |
|
|
1166 | #else |
|
|
1167 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1168 | int neg = x >> 63; |
|
|
1169 | int e = (x >> 52) & 0x7ffU; |
|
|
1170 | |
|
|
1171 | x &= 0xfffffffffffffU; |
|
|
1172 | |
|
|
1173 | if (e) |
|
|
1174 | x |= 0x10000000000000U; |
|
|
1175 | else |
|
|
1176 | e = 1; |
|
|
1177 | |
|
|
1178 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1179 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1180 | |
|
|
1181 | r = neg ? -r : r; |
|
|
1182 | #endif |
|
|
1183 | |
|
|
1184 | return r; |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | #endif |
|
|
1188 | |
|
|
1189 | #endif |
|
|
1190 | |
|
|
1191 | /* ECB.H END */ |
|
|
1192 | |
|
|
1193 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1194 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1195 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1196 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1197 | * libev, in which cases the memory fences become nops. |
|
|
1198 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1199 | * which will then provide the memory fences. |
|
|
1200 | */ |
|
|
1201 | # error "memory fences not defined for your architecture, please report" |
|
|
1202 | #endif |
|
|
1203 | |
|
|
1204 | #ifndef ECB_MEMORY_FENCE |
|
|
1205 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1206 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1207 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1208 | #endif |
|
|
1209 | |
|
|
1210 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1211 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1212 | #define noinline ecb_noinline |
|
|
1213 | |
320 | #define inline_size static inline |
1214 | #define inline_size ecb_inline |
321 | |
1215 | |
322 | #if EV_MINIMAL |
1216 | #if EV_FEATURE_CODE |
|
|
1217 | # define inline_speed ecb_inline |
|
|
1218 | #else |
323 | # define inline_speed static noinline |
1219 | # define inline_speed static noinline |
|
|
1220 | #endif |
|
|
1221 | |
|
|
1222 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
1223 | |
|
|
1224 | #if EV_MINPRI == EV_MAXPRI |
|
|
1225 | # define ABSPRI(w) (((W)w), 0) |
324 | #else |
1226 | #else |
325 | # define inline_speed static inline |
|
|
326 | #endif |
|
|
327 | |
|
|
328 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
329 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1227 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
1228 | #endif |
330 | |
1229 | |
331 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1230 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
332 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
1231 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
333 | |
1232 | |
334 | typedef ev_watcher *W; |
1233 | typedef ev_watcher *W; |
… | |
… | |
336 | typedef ev_watcher_time *WT; |
1235 | typedef ev_watcher_time *WT; |
337 | |
1236 | |
338 | #define ev_active(w) ((W)(w))->active |
1237 | #define ev_active(w) ((W)(w))->active |
339 | #define ev_at(w) ((WT)(w))->at |
1238 | #define ev_at(w) ((WT)(w))->at |
340 | |
1239 | |
|
|
1240 | #if EV_USE_REALTIME |
|
|
1241 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
1242 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
1243 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
1244 | #endif |
|
|
1245 | |
341 | #if EV_USE_MONOTONIC |
1246 | #if EV_USE_MONOTONIC |
342 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
343 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
344 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1247 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
1248 | #endif |
|
|
1249 | |
|
|
1250 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1251 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1252 | #endif |
|
|
1253 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1254 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1255 | #endif |
|
|
1256 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1257 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
345 | #endif |
1258 | #endif |
346 | |
1259 | |
347 | #ifdef _WIN32 |
1260 | #ifdef _WIN32 |
348 | # include "ev_win32.c" |
1261 | # include "ev_win32.c" |
349 | #endif |
1262 | #endif |
350 | |
1263 | |
351 | /*****************************************************************************/ |
1264 | /*****************************************************************************/ |
352 | |
1265 | |
|
|
1266 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1267 | |
|
|
1268 | #if EV_USE_FLOOR |
|
|
1269 | # include <math.h> |
|
|
1270 | # define ev_floor(v) floor (v) |
|
|
1271 | #else |
|
|
1272 | |
|
|
1273 | #include <float.h> |
|
|
1274 | |
|
|
1275 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1276 | static ev_tstamp noinline |
|
|
1277 | ev_floor (ev_tstamp v) |
|
|
1278 | { |
|
|
1279 | /* the choice of shift factor is not terribly important */ |
|
|
1280 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1281 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1282 | #else |
|
|
1283 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1284 | #endif |
|
|
1285 | |
|
|
1286 | /* argument too large for an unsigned long? */ |
|
|
1287 | if (expect_false (v >= shift)) |
|
|
1288 | { |
|
|
1289 | ev_tstamp f; |
|
|
1290 | |
|
|
1291 | if (v == v - 1.) |
|
|
1292 | return v; /* very large number */ |
|
|
1293 | |
|
|
1294 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1295 | return f + ev_floor (v - f); |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | /* special treatment for negative args? */ |
|
|
1299 | if (expect_false (v < 0.)) |
|
|
1300 | { |
|
|
1301 | ev_tstamp f = -ev_floor (-v); |
|
|
1302 | |
|
|
1303 | return f - (f == v ? 0 : 1); |
|
|
1304 | } |
|
|
1305 | |
|
|
1306 | /* fits into an unsigned long */ |
|
|
1307 | return (unsigned long)v; |
|
|
1308 | } |
|
|
1309 | |
|
|
1310 | #endif |
|
|
1311 | |
|
|
1312 | /*****************************************************************************/ |
|
|
1313 | |
|
|
1314 | #ifdef __linux |
|
|
1315 | # include <sys/utsname.h> |
|
|
1316 | #endif |
|
|
1317 | |
|
|
1318 | static unsigned int noinline ecb_cold |
|
|
1319 | ev_linux_version (void) |
|
|
1320 | { |
|
|
1321 | #ifdef __linux |
|
|
1322 | unsigned int v = 0; |
|
|
1323 | struct utsname buf; |
|
|
1324 | int i; |
|
|
1325 | char *p = buf.release; |
|
|
1326 | |
|
|
1327 | if (uname (&buf)) |
|
|
1328 | return 0; |
|
|
1329 | |
|
|
1330 | for (i = 3+1; --i; ) |
|
|
1331 | { |
|
|
1332 | unsigned int c = 0; |
|
|
1333 | |
|
|
1334 | for (;;) |
|
|
1335 | { |
|
|
1336 | if (*p >= '0' && *p <= '9') |
|
|
1337 | c = c * 10 + *p++ - '0'; |
|
|
1338 | else |
|
|
1339 | { |
|
|
1340 | p += *p == '.'; |
|
|
1341 | break; |
|
|
1342 | } |
|
|
1343 | } |
|
|
1344 | |
|
|
1345 | v = (v << 8) | c; |
|
|
1346 | } |
|
|
1347 | |
|
|
1348 | return v; |
|
|
1349 | #else |
|
|
1350 | return 0; |
|
|
1351 | #endif |
|
|
1352 | } |
|
|
1353 | |
|
|
1354 | /*****************************************************************************/ |
|
|
1355 | |
|
|
1356 | #if EV_AVOID_STDIO |
|
|
1357 | static void noinline ecb_cold |
|
|
1358 | ev_printerr (const char *msg) |
|
|
1359 | { |
|
|
1360 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1361 | } |
|
|
1362 | #endif |
|
|
1363 | |
353 | static void (*syserr_cb)(const char *msg); |
1364 | static void (*syserr_cb)(const char *msg) EV_THROW; |
354 | |
1365 | |
355 | void |
1366 | void ecb_cold |
356 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1367 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
357 | { |
1368 | { |
358 | syserr_cb = cb; |
1369 | syserr_cb = cb; |
359 | } |
1370 | } |
360 | |
1371 | |
361 | static void noinline |
1372 | static void noinline ecb_cold |
362 | syserr (const char *msg) |
1373 | ev_syserr (const char *msg) |
363 | { |
1374 | { |
364 | if (!msg) |
1375 | if (!msg) |
365 | msg = "(libev) system error"; |
1376 | msg = "(libev) system error"; |
366 | |
1377 | |
367 | if (syserr_cb) |
1378 | if (syserr_cb) |
368 | syserr_cb (msg); |
1379 | syserr_cb (msg); |
369 | else |
1380 | else |
370 | { |
1381 | { |
|
|
1382 | #if EV_AVOID_STDIO |
|
|
1383 | ev_printerr (msg); |
|
|
1384 | ev_printerr (": "); |
|
|
1385 | ev_printerr (strerror (errno)); |
|
|
1386 | ev_printerr ("\n"); |
|
|
1387 | #else |
371 | perror (msg); |
1388 | perror (msg); |
|
|
1389 | #endif |
372 | abort (); |
1390 | abort (); |
373 | } |
1391 | } |
374 | } |
1392 | } |
375 | |
1393 | |
376 | static void * |
1394 | static void * |
377 | ev_realloc_emul (void *ptr, long size) |
1395 | ev_realloc_emul (void *ptr, long size) EV_THROW |
378 | { |
1396 | { |
379 | /* some systems, notably openbsd and darwin, fail to properly |
1397 | /* some systems, notably openbsd and darwin, fail to properly |
380 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1398 | * implement realloc (x, 0) (as required by both ansi c-89 and |
381 | * the single unix specification, so work around them here. |
1399 | * the single unix specification, so work around them here. |
|
|
1400 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1401 | * despite documenting it otherwise. |
382 | */ |
1402 | */ |
383 | |
1403 | |
384 | if (size) |
1404 | if (size) |
385 | return realloc (ptr, size); |
1405 | return realloc (ptr, size); |
386 | |
1406 | |
387 | free (ptr); |
1407 | free (ptr); |
388 | return 0; |
1408 | return 0; |
389 | } |
1409 | } |
390 | |
1410 | |
391 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1411 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
392 | |
1412 | |
393 | void |
1413 | void ecb_cold |
394 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1414 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
395 | { |
1415 | { |
396 | alloc = cb; |
1416 | alloc = cb; |
397 | } |
1417 | } |
398 | |
1418 | |
399 | inline_speed void * |
1419 | inline_speed void * |
… | |
… | |
401 | { |
1421 | { |
402 | ptr = alloc (ptr, size); |
1422 | ptr = alloc (ptr, size); |
403 | |
1423 | |
404 | if (!ptr && size) |
1424 | if (!ptr && size) |
405 | { |
1425 | { |
|
|
1426 | #if EV_AVOID_STDIO |
|
|
1427 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1428 | #else |
406 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1429 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1430 | #endif |
407 | abort (); |
1431 | abort (); |
408 | } |
1432 | } |
409 | |
1433 | |
410 | return ptr; |
1434 | return ptr; |
411 | } |
1435 | } |
… | |
… | |
413 | #define ev_malloc(size) ev_realloc (0, (size)) |
1437 | #define ev_malloc(size) ev_realloc (0, (size)) |
414 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1438 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
415 | |
1439 | |
416 | /*****************************************************************************/ |
1440 | /*****************************************************************************/ |
417 | |
1441 | |
|
|
1442 | /* set in reify when reification needed */ |
|
|
1443 | #define EV_ANFD_REIFY 1 |
|
|
1444 | |
|
|
1445 | /* file descriptor info structure */ |
418 | typedef struct |
1446 | typedef struct |
419 | { |
1447 | { |
420 | WL head; |
1448 | WL head; |
421 | unsigned char events; |
1449 | unsigned char events; /* the events watched for */ |
|
|
1450 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1451 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
422 | unsigned char reify; |
1452 | unsigned char unused; |
|
|
1453 | #if EV_USE_EPOLL |
|
|
1454 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1455 | #endif |
423 | #if EV_SELECT_IS_WINSOCKET |
1456 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
424 | SOCKET handle; |
1457 | SOCKET handle; |
425 | #endif |
1458 | #endif |
|
|
1459 | #if EV_USE_IOCP |
|
|
1460 | OVERLAPPED or, ow; |
|
|
1461 | #endif |
426 | } ANFD; |
1462 | } ANFD; |
427 | |
1463 | |
|
|
1464 | /* stores the pending event set for a given watcher */ |
428 | typedef struct |
1465 | typedef struct |
429 | { |
1466 | { |
430 | W w; |
1467 | W w; |
431 | int events; |
1468 | int events; /* the pending event set for the given watcher */ |
432 | } ANPENDING; |
1469 | } ANPENDING; |
433 | |
1470 | |
434 | #if EV_USE_INOTIFY |
1471 | #if EV_USE_INOTIFY |
435 | /* hash table entry per inotify-id */ |
1472 | /* hash table entry per inotify-id */ |
436 | typedef struct |
1473 | typedef struct |
… | |
… | |
439 | } ANFS; |
1476 | } ANFS; |
440 | #endif |
1477 | #endif |
441 | |
1478 | |
442 | /* Heap Entry */ |
1479 | /* Heap Entry */ |
443 | #if EV_HEAP_CACHE_AT |
1480 | #if EV_HEAP_CACHE_AT |
|
|
1481 | /* a heap element */ |
444 | typedef struct { |
1482 | typedef struct { |
445 | ev_tstamp at; |
1483 | ev_tstamp at; |
446 | WT w; |
1484 | WT w; |
447 | } ANHE; |
1485 | } ANHE; |
448 | |
1486 | |
449 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
1487 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
450 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
1488 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
451 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
1489 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
452 | #else |
1490 | #else |
|
|
1491 | /* a heap element */ |
453 | typedef WT ANHE; |
1492 | typedef WT ANHE; |
454 | |
1493 | |
455 | #define ANHE_w(he) (he) |
1494 | #define ANHE_w(he) (he) |
456 | #define ANHE_at(he) (he)->at |
1495 | #define ANHE_at(he) (he)->at |
457 | #define ANHE_at_set(he) |
1496 | #define ANHE_at_cache(he) |
458 | #endif |
1497 | #endif |
459 | |
1498 | |
460 | #if EV_MULTIPLICITY |
1499 | #if EV_MULTIPLICITY |
461 | |
1500 | |
462 | struct ev_loop |
1501 | struct ev_loop |
… | |
… | |
468 | #undef VAR |
1507 | #undef VAR |
469 | }; |
1508 | }; |
470 | #include "ev_wrap.h" |
1509 | #include "ev_wrap.h" |
471 | |
1510 | |
472 | static struct ev_loop default_loop_struct; |
1511 | static struct ev_loop default_loop_struct; |
473 | struct ev_loop *ev_default_loop_ptr; |
1512 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
474 | |
1513 | |
475 | #else |
1514 | #else |
476 | |
1515 | |
477 | ev_tstamp ev_rt_now; |
1516 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
478 | #define VAR(name,decl) static decl; |
1517 | #define VAR(name,decl) static decl; |
479 | #include "ev_vars.h" |
1518 | #include "ev_vars.h" |
480 | #undef VAR |
1519 | #undef VAR |
481 | |
1520 | |
482 | static int ev_default_loop_ptr; |
1521 | static int ev_default_loop_ptr; |
483 | |
1522 | |
484 | #endif |
1523 | #endif |
485 | |
1524 | |
|
|
1525 | #if EV_FEATURE_API |
|
|
1526 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1527 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1528 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1529 | #else |
|
|
1530 | # define EV_RELEASE_CB (void)0 |
|
|
1531 | # define EV_ACQUIRE_CB (void)0 |
|
|
1532 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1533 | #endif |
|
|
1534 | |
|
|
1535 | #define EVBREAK_RECURSE 0x80 |
|
|
1536 | |
486 | /*****************************************************************************/ |
1537 | /*****************************************************************************/ |
487 | |
1538 | |
|
|
1539 | #ifndef EV_HAVE_EV_TIME |
488 | ev_tstamp |
1540 | ev_tstamp |
489 | ev_time (void) |
1541 | ev_time (void) EV_THROW |
490 | { |
1542 | { |
491 | #if EV_USE_REALTIME |
1543 | #if EV_USE_REALTIME |
|
|
1544 | if (expect_true (have_realtime)) |
|
|
1545 | { |
492 | struct timespec ts; |
1546 | struct timespec ts; |
493 | clock_gettime (CLOCK_REALTIME, &ts); |
1547 | clock_gettime (CLOCK_REALTIME, &ts); |
494 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1548 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
495 | #else |
1549 | } |
|
|
1550 | #endif |
|
|
1551 | |
496 | struct timeval tv; |
1552 | struct timeval tv; |
497 | gettimeofday (&tv, 0); |
1553 | gettimeofday (&tv, 0); |
498 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1554 | return tv.tv_sec + tv.tv_usec * 1e-6; |
499 | #endif |
|
|
500 | } |
1555 | } |
|
|
1556 | #endif |
501 | |
1557 | |
502 | ev_tstamp inline_size |
1558 | inline_size ev_tstamp |
503 | get_clock (void) |
1559 | get_clock (void) |
504 | { |
1560 | { |
505 | #if EV_USE_MONOTONIC |
1561 | #if EV_USE_MONOTONIC |
506 | if (expect_true (have_monotonic)) |
1562 | if (expect_true (have_monotonic)) |
507 | { |
1563 | { |
… | |
… | |
514 | return ev_time (); |
1570 | return ev_time (); |
515 | } |
1571 | } |
516 | |
1572 | |
517 | #if EV_MULTIPLICITY |
1573 | #if EV_MULTIPLICITY |
518 | ev_tstamp |
1574 | ev_tstamp |
519 | ev_now (EV_P) |
1575 | ev_now (EV_P) EV_THROW |
520 | { |
1576 | { |
521 | return ev_rt_now; |
1577 | return ev_rt_now; |
522 | } |
1578 | } |
523 | #endif |
1579 | #endif |
524 | |
1580 | |
525 | void |
1581 | void |
526 | ev_sleep (ev_tstamp delay) |
1582 | ev_sleep (ev_tstamp delay) EV_THROW |
527 | { |
1583 | { |
528 | if (delay > 0.) |
1584 | if (delay > 0.) |
529 | { |
1585 | { |
530 | #if EV_USE_NANOSLEEP |
1586 | #if EV_USE_NANOSLEEP |
531 | struct timespec ts; |
1587 | struct timespec ts; |
532 | |
1588 | |
533 | ts.tv_sec = (time_t)delay; |
1589 | EV_TS_SET (ts, delay); |
534 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
535 | |
|
|
536 | nanosleep (&ts, 0); |
1590 | nanosleep (&ts, 0); |
537 | #elif defined(_WIN32) |
1591 | #elif defined _WIN32 |
538 | Sleep ((unsigned long)(delay * 1e3)); |
1592 | Sleep ((unsigned long)(delay * 1e3)); |
539 | #else |
1593 | #else |
540 | struct timeval tv; |
1594 | struct timeval tv; |
541 | |
1595 | |
542 | tv.tv_sec = (time_t)delay; |
1596 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
543 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
1597 | /* something not guaranteed by newer posix versions, but guaranteed */ |
544 | |
1598 | /* by older ones */ |
|
|
1599 | EV_TV_SET (tv, delay); |
545 | select (0, 0, 0, 0, &tv); |
1600 | select (0, 0, 0, 0, &tv); |
546 | #endif |
1601 | #endif |
547 | } |
1602 | } |
548 | } |
1603 | } |
549 | |
1604 | |
550 | /*****************************************************************************/ |
1605 | /*****************************************************************************/ |
551 | |
1606 | |
552 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1607 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
553 | |
1608 | |
554 | int inline_size |
1609 | /* find a suitable new size for the given array, */ |
|
|
1610 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1611 | inline_size int |
555 | array_nextsize (int elem, int cur, int cnt) |
1612 | array_nextsize (int elem, int cur, int cnt) |
556 | { |
1613 | { |
557 | int ncur = cur + 1; |
1614 | int ncur = cur + 1; |
558 | |
1615 | |
559 | do |
1616 | do |
560 | ncur <<= 1; |
1617 | ncur <<= 1; |
561 | while (cnt > ncur); |
1618 | while (cnt > ncur); |
562 | |
1619 | |
563 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1620 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
564 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1621 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
565 | { |
1622 | { |
566 | ncur *= elem; |
1623 | ncur *= elem; |
567 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1624 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
568 | ncur = ncur - sizeof (void *) * 4; |
1625 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
570 | } |
1627 | } |
571 | |
1628 | |
572 | return ncur; |
1629 | return ncur; |
573 | } |
1630 | } |
574 | |
1631 | |
575 | static noinline void * |
1632 | static void * noinline ecb_cold |
576 | array_realloc (int elem, void *base, int *cur, int cnt) |
1633 | array_realloc (int elem, void *base, int *cur, int cnt) |
577 | { |
1634 | { |
578 | *cur = array_nextsize (elem, *cur, cnt); |
1635 | *cur = array_nextsize (elem, *cur, cnt); |
579 | return ev_realloc (base, elem * *cur); |
1636 | return ev_realloc (base, elem * *cur); |
580 | } |
1637 | } |
|
|
1638 | |
|
|
1639 | #define array_init_zero(base,count) \ |
|
|
1640 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
581 | |
1641 | |
582 | #define array_needsize(type,base,cur,cnt,init) \ |
1642 | #define array_needsize(type,base,cur,cnt,init) \ |
583 | if (expect_false ((cnt) > (cur))) \ |
1643 | if (expect_false ((cnt) > (cur))) \ |
584 | { \ |
1644 | { \ |
585 | int ocur_ = (cur); \ |
1645 | int ecb_unused ocur_ = (cur); \ |
586 | (base) = (type *)array_realloc \ |
1646 | (base) = (type *)array_realloc \ |
587 | (sizeof (type), (base), &(cur), (cnt)); \ |
1647 | (sizeof (type), (base), &(cur), (cnt)); \ |
588 | init ((base) + (ocur_), (cur) - ocur_); \ |
1648 | init ((base) + (ocur_), (cur) - ocur_); \ |
589 | } |
1649 | } |
590 | |
1650 | |
… | |
… | |
597 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1657 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
598 | } |
1658 | } |
599 | #endif |
1659 | #endif |
600 | |
1660 | |
601 | #define array_free(stem, idx) \ |
1661 | #define array_free(stem, idx) \ |
602 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1662 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
603 | |
1663 | |
604 | /*****************************************************************************/ |
1664 | /*****************************************************************************/ |
605 | |
1665 | |
|
|
1666 | /* dummy callback for pending events */ |
|
|
1667 | static void noinline |
|
|
1668 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1669 | { |
|
|
1670 | } |
|
|
1671 | |
606 | void noinline |
1672 | void noinline |
607 | ev_feed_event (EV_P_ void *w, int revents) |
1673 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
608 | { |
1674 | { |
609 | W w_ = (W)w; |
1675 | W w_ = (W)w; |
610 | int pri = ABSPRI (w_); |
1676 | int pri = ABSPRI (w_); |
611 | |
1677 | |
612 | if (expect_false (w_->pending)) |
1678 | if (expect_false (w_->pending)) |
… | |
… | |
616 | w_->pending = ++pendingcnt [pri]; |
1682 | w_->pending = ++pendingcnt [pri]; |
617 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1683 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
618 | pendings [pri][w_->pending - 1].w = w_; |
1684 | pendings [pri][w_->pending - 1].w = w_; |
619 | pendings [pri][w_->pending - 1].events = revents; |
1685 | pendings [pri][w_->pending - 1].events = revents; |
620 | } |
1686 | } |
621 | } |
|
|
622 | |
1687 | |
623 | void inline_speed |
1688 | pendingpri = NUMPRI - 1; |
|
|
1689 | } |
|
|
1690 | |
|
|
1691 | inline_speed void |
|
|
1692 | feed_reverse (EV_P_ W w) |
|
|
1693 | { |
|
|
1694 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1695 | rfeeds [rfeedcnt++] = w; |
|
|
1696 | } |
|
|
1697 | |
|
|
1698 | inline_size void |
|
|
1699 | feed_reverse_done (EV_P_ int revents) |
|
|
1700 | { |
|
|
1701 | do |
|
|
1702 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1703 | while (rfeedcnt); |
|
|
1704 | } |
|
|
1705 | |
|
|
1706 | inline_speed void |
624 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1707 | queue_events (EV_P_ W *events, int eventcnt, int type) |
625 | { |
1708 | { |
626 | int i; |
1709 | int i; |
627 | |
1710 | |
628 | for (i = 0; i < eventcnt; ++i) |
1711 | for (i = 0; i < eventcnt; ++i) |
629 | ev_feed_event (EV_A_ events [i], type); |
1712 | ev_feed_event (EV_A_ events [i], type); |
630 | } |
1713 | } |
631 | |
1714 | |
632 | /*****************************************************************************/ |
1715 | /*****************************************************************************/ |
633 | |
1716 | |
634 | void inline_size |
1717 | inline_speed void |
635 | anfds_init (ANFD *base, int count) |
|
|
636 | { |
|
|
637 | while (count--) |
|
|
638 | { |
|
|
639 | base->head = 0; |
|
|
640 | base->events = EV_NONE; |
|
|
641 | base->reify = 0; |
|
|
642 | |
|
|
643 | ++base; |
|
|
644 | } |
|
|
645 | } |
|
|
646 | |
|
|
647 | void inline_speed |
|
|
648 | fd_event (EV_P_ int fd, int revents) |
1718 | fd_event_nocheck (EV_P_ int fd, int revents) |
649 | { |
1719 | { |
650 | ANFD *anfd = anfds + fd; |
1720 | ANFD *anfd = anfds + fd; |
651 | ev_io *w; |
1721 | ev_io *w; |
652 | |
1722 | |
653 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1723 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
657 | if (ev) |
1727 | if (ev) |
658 | ev_feed_event (EV_A_ (W)w, ev); |
1728 | ev_feed_event (EV_A_ (W)w, ev); |
659 | } |
1729 | } |
660 | } |
1730 | } |
661 | |
1731 | |
|
|
1732 | /* do not submit kernel events for fds that have reify set */ |
|
|
1733 | /* because that means they changed while we were polling for new events */ |
|
|
1734 | inline_speed void |
|
|
1735 | fd_event (EV_P_ int fd, int revents) |
|
|
1736 | { |
|
|
1737 | ANFD *anfd = anfds + fd; |
|
|
1738 | |
|
|
1739 | if (expect_true (!anfd->reify)) |
|
|
1740 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1741 | } |
|
|
1742 | |
662 | void |
1743 | void |
663 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1744 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
664 | { |
1745 | { |
665 | if (fd >= 0 && fd < anfdmax) |
1746 | if (fd >= 0 && fd < anfdmax) |
666 | fd_event (EV_A_ fd, revents); |
1747 | fd_event_nocheck (EV_A_ fd, revents); |
667 | } |
1748 | } |
668 | |
1749 | |
669 | void inline_size |
1750 | /* make sure the external fd watch events are in-sync */ |
|
|
1751 | /* with the kernel/libev internal state */ |
|
|
1752 | inline_size void |
670 | fd_reify (EV_P) |
1753 | fd_reify (EV_P) |
671 | { |
1754 | { |
672 | int i; |
1755 | int i; |
|
|
1756 | |
|
|
1757 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1758 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1759 | { |
|
|
1760 | int fd = fdchanges [i]; |
|
|
1761 | ANFD *anfd = anfds + fd; |
|
|
1762 | |
|
|
1763 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1764 | { |
|
|
1765 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1766 | |
|
|
1767 | if (handle != anfd->handle) |
|
|
1768 | { |
|
|
1769 | unsigned long arg; |
|
|
1770 | |
|
|
1771 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1772 | |
|
|
1773 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1774 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1775 | anfd->events = 0; |
|
|
1776 | anfd->handle = handle; |
|
|
1777 | } |
|
|
1778 | } |
|
|
1779 | } |
|
|
1780 | #endif |
673 | |
1781 | |
674 | for (i = 0; i < fdchangecnt; ++i) |
1782 | for (i = 0; i < fdchangecnt; ++i) |
675 | { |
1783 | { |
676 | int fd = fdchanges [i]; |
1784 | int fd = fdchanges [i]; |
677 | ANFD *anfd = anfds + fd; |
1785 | ANFD *anfd = anfds + fd; |
678 | ev_io *w; |
1786 | ev_io *w; |
679 | |
1787 | |
680 | unsigned char events = 0; |
1788 | unsigned char o_events = anfd->events; |
|
|
1789 | unsigned char o_reify = anfd->reify; |
681 | |
1790 | |
682 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1791 | anfd->reify = 0; |
683 | events |= (unsigned char)w->events; |
|
|
684 | |
1792 | |
685 | #if EV_SELECT_IS_WINSOCKET |
1793 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
686 | if (events) |
|
|
687 | { |
1794 | { |
688 | unsigned long argp; |
1795 | anfd->events = 0; |
689 | #ifdef EV_FD_TO_WIN32_HANDLE |
1796 | |
690 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1797 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
691 | #else |
1798 | anfd->events |= (unsigned char)w->events; |
692 | anfd->handle = _get_osfhandle (fd); |
1799 | |
693 | #endif |
1800 | if (o_events != anfd->events) |
694 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1801 | o_reify = EV__IOFDSET; /* actually |= */ |
695 | } |
1802 | } |
696 | #endif |
|
|
697 | |
1803 | |
698 | { |
1804 | if (o_reify & EV__IOFDSET) |
699 | unsigned char o_events = anfd->events; |
|
|
700 | unsigned char o_reify = anfd->reify; |
|
|
701 | |
|
|
702 | anfd->reify = 0; |
|
|
703 | anfd->events = events; |
|
|
704 | |
|
|
705 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
706 | backend_modify (EV_A_ fd, o_events, events); |
1805 | backend_modify (EV_A_ fd, o_events, anfd->events); |
707 | } |
|
|
708 | } |
1806 | } |
709 | |
1807 | |
710 | fdchangecnt = 0; |
1808 | fdchangecnt = 0; |
711 | } |
1809 | } |
712 | |
1810 | |
713 | void inline_size |
1811 | /* something about the given fd changed */ |
|
|
1812 | inline_size void |
714 | fd_change (EV_P_ int fd, int flags) |
1813 | fd_change (EV_P_ int fd, int flags) |
715 | { |
1814 | { |
716 | unsigned char reify = anfds [fd].reify; |
1815 | unsigned char reify = anfds [fd].reify; |
717 | anfds [fd].reify |= flags; |
1816 | anfds [fd].reify |= flags; |
718 | |
1817 | |
… | |
… | |
722 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1821 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
723 | fdchanges [fdchangecnt - 1] = fd; |
1822 | fdchanges [fdchangecnt - 1] = fd; |
724 | } |
1823 | } |
725 | } |
1824 | } |
726 | |
1825 | |
727 | void inline_speed |
1826 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1827 | inline_speed void ecb_cold |
728 | fd_kill (EV_P_ int fd) |
1828 | fd_kill (EV_P_ int fd) |
729 | { |
1829 | { |
730 | ev_io *w; |
1830 | ev_io *w; |
731 | |
1831 | |
732 | while ((w = (ev_io *)anfds [fd].head)) |
1832 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
734 | ev_io_stop (EV_A_ w); |
1834 | ev_io_stop (EV_A_ w); |
735 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1835 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
736 | } |
1836 | } |
737 | } |
1837 | } |
738 | |
1838 | |
739 | int inline_size |
1839 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1840 | inline_size int ecb_cold |
740 | fd_valid (int fd) |
1841 | fd_valid (int fd) |
741 | { |
1842 | { |
742 | #ifdef _WIN32 |
1843 | #ifdef _WIN32 |
743 | return _get_osfhandle (fd) != -1; |
1844 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
744 | #else |
1845 | #else |
745 | return fcntl (fd, F_GETFD) != -1; |
1846 | return fcntl (fd, F_GETFD) != -1; |
746 | #endif |
1847 | #endif |
747 | } |
1848 | } |
748 | |
1849 | |
749 | /* called on EBADF to verify fds */ |
1850 | /* called on EBADF to verify fds */ |
750 | static void noinline |
1851 | static void noinline ecb_cold |
751 | fd_ebadf (EV_P) |
1852 | fd_ebadf (EV_P) |
752 | { |
1853 | { |
753 | int fd; |
1854 | int fd; |
754 | |
1855 | |
755 | for (fd = 0; fd < anfdmax; ++fd) |
1856 | for (fd = 0; fd < anfdmax; ++fd) |
756 | if (anfds [fd].events) |
1857 | if (anfds [fd].events) |
757 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1858 | if (!fd_valid (fd) && errno == EBADF) |
758 | fd_kill (EV_A_ fd); |
1859 | fd_kill (EV_A_ fd); |
759 | } |
1860 | } |
760 | |
1861 | |
761 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1862 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
762 | static void noinline |
1863 | static void noinline ecb_cold |
763 | fd_enomem (EV_P) |
1864 | fd_enomem (EV_P) |
764 | { |
1865 | { |
765 | int fd; |
1866 | int fd; |
766 | |
1867 | |
767 | for (fd = anfdmax; fd--; ) |
1868 | for (fd = anfdmax; fd--; ) |
768 | if (anfds [fd].events) |
1869 | if (anfds [fd].events) |
769 | { |
1870 | { |
770 | fd_kill (EV_A_ fd); |
1871 | fd_kill (EV_A_ fd); |
771 | return; |
1872 | break; |
772 | } |
1873 | } |
773 | } |
1874 | } |
774 | |
1875 | |
775 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1876 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
776 | static void noinline |
1877 | static void noinline |
… | |
… | |
780 | |
1881 | |
781 | for (fd = 0; fd < anfdmax; ++fd) |
1882 | for (fd = 0; fd < anfdmax; ++fd) |
782 | if (anfds [fd].events) |
1883 | if (anfds [fd].events) |
783 | { |
1884 | { |
784 | anfds [fd].events = 0; |
1885 | anfds [fd].events = 0; |
|
|
1886 | anfds [fd].emask = 0; |
785 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1887 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
786 | } |
1888 | } |
787 | } |
1889 | } |
788 | |
1890 | |
|
|
1891 | /* used to prepare libev internal fd's */ |
|
|
1892 | /* this is not fork-safe */ |
|
|
1893 | inline_speed void |
|
|
1894 | fd_intern (int fd) |
|
|
1895 | { |
|
|
1896 | #ifdef _WIN32 |
|
|
1897 | unsigned long arg = 1; |
|
|
1898 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1899 | #else |
|
|
1900 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1901 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1902 | #endif |
|
|
1903 | } |
|
|
1904 | |
789 | /*****************************************************************************/ |
1905 | /*****************************************************************************/ |
790 | |
1906 | |
791 | /* |
1907 | /* |
792 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1908 | * the heap functions want a real array index. array index 0 is guaranteed to not |
793 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1909 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
794 | * the branching factor of the d-tree. |
1910 | * the branching factor of the d-tree. |
795 | */ |
1911 | */ |
796 | |
1912 | |
797 | /* |
1913 | /* |
… | |
… | |
803 | #if EV_USE_4HEAP |
1919 | #if EV_USE_4HEAP |
804 | |
1920 | |
805 | #define DHEAP 4 |
1921 | #define DHEAP 4 |
806 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1922 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
807 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1923 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
808 | |
1924 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
809 | /* towards the root */ |
|
|
810 | void inline_speed |
|
|
811 | upheap (ANHE *heap, int k) |
|
|
812 | { |
|
|
813 | ANHE he = heap [k]; |
|
|
814 | |
|
|
815 | for (;;) |
|
|
816 | { |
|
|
817 | int p = HPARENT (k); |
|
|
818 | |
|
|
819 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
820 | break; |
|
|
821 | |
|
|
822 | heap [k] = heap [p]; |
|
|
823 | ev_active (ANHE_w (heap [k])) = k; |
|
|
824 | k = p; |
|
|
825 | } |
|
|
826 | |
|
|
827 | heap [k] = he; |
|
|
828 | ev_active (ANHE_w (he)) = k; |
|
|
829 | } |
|
|
830 | |
1925 | |
831 | /* away from the root */ |
1926 | /* away from the root */ |
832 | void inline_speed |
1927 | inline_speed void |
833 | downheap (ANHE *heap, int N, int k) |
1928 | downheap (ANHE *heap, int N, int k) |
834 | { |
1929 | { |
835 | ANHE he = heap [k]; |
1930 | ANHE he = heap [k]; |
836 | ANHE *E = heap + N + HEAP0; |
1931 | ANHE *E = heap + N + HEAP0; |
837 | |
1932 | |
838 | for (;;) |
1933 | for (;;) |
839 | { |
1934 | { |
840 | ev_tstamp minat; |
1935 | ev_tstamp minat; |
841 | ANHE *minpos; |
1936 | ANHE *minpos; |
842 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
1937 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
843 | |
1938 | |
844 | // find minimum child |
1939 | /* find minimum child */ |
845 | if (expect_true (pos + DHEAP - 1 < E)) |
1940 | if (expect_true (pos + DHEAP - 1 < E)) |
846 | { |
1941 | { |
847 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1942 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
848 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1943 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
849 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1944 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
… | |
… | |
870 | |
1965 | |
871 | heap [k] = he; |
1966 | heap [k] = he; |
872 | ev_active (ANHE_w (he)) = k; |
1967 | ev_active (ANHE_w (he)) = k; |
873 | } |
1968 | } |
874 | |
1969 | |
875 | #else // 4HEAP |
1970 | #else /* 4HEAP */ |
876 | |
1971 | |
877 | #define HEAP0 1 |
1972 | #define HEAP0 1 |
878 | #define HPARENT(k) ((k) >> 1) |
1973 | #define HPARENT(k) ((k) >> 1) |
|
|
1974 | #define UPHEAP_DONE(p,k) (!(p)) |
879 | |
1975 | |
880 | /* towards the root */ |
1976 | /* away from the root */ |
881 | void inline_speed |
1977 | inline_speed void |
882 | upheap (ANHE *heap, int k) |
1978 | downheap (ANHE *heap, int N, int k) |
883 | { |
1979 | { |
884 | ANHE he = heap [k]; |
1980 | ANHE he = heap [k]; |
885 | |
1981 | |
886 | for (;;) |
1982 | for (;;) |
887 | { |
1983 | { |
888 | int p = HPARENT (k); |
1984 | int c = k << 1; |
889 | |
1985 | |
890 | /* maybe we could use a dummy element at heap [0]? */ |
1986 | if (c >= N + HEAP0) |
891 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
892 | break; |
1987 | break; |
893 | |
1988 | |
894 | heap [k] = heap [p]; |
|
|
895 | ev_active (ANHE_w (heap [k])) = k; |
|
|
896 | k = p; |
|
|
897 | } |
|
|
898 | |
|
|
899 | heap [k] = he; |
|
|
900 | ev_active (ANHE_w (heap [k])) = k; |
|
|
901 | } |
|
|
902 | |
|
|
903 | /* away from the root */ |
|
|
904 | void inline_speed |
|
|
905 | downheap (ANHE *heap, int N, int k) |
|
|
906 | { |
|
|
907 | ANHE he = heap [k]; |
|
|
908 | |
|
|
909 | for (;;) |
|
|
910 | { |
|
|
911 | int c = k << 1; |
|
|
912 | |
|
|
913 | if (c > N) |
|
|
914 | break; |
|
|
915 | |
|
|
916 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1989 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
917 | ? 1 : 0; |
1990 | ? 1 : 0; |
918 | |
1991 | |
919 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
1992 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
920 | break; |
1993 | break; |
921 | |
1994 | |
… | |
… | |
928 | heap [k] = he; |
2001 | heap [k] = he; |
929 | ev_active (ANHE_w (he)) = k; |
2002 | ev_active (ANHE_w (he)) = k; |
930 | } |
2003 | } |
931 | #endif |
2004 | #endif |
932 | |
2005 | |
933 | void inline_size |
2006 | /* towards the root */ |
|
|
2007 | inline_speed void |
|
|
2008 | upheap (ANHE *heap, int k) |
|
|
2009 | { |
|
|
2010 | ANHE he = heap [k]; |
|
|
2011 | |
|
|
2012 | for (;;) |
|
|
2013 | { |
|
|
2014 | int p = HPARENT (k); |
|
|
2015 | |
|
|
2016 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
2017 | break; |
|
|
2018 | |
|
|
2019 | heap [k] = heap [p]; |
|
|
2020 | ev_active (ANHE_w (heap [k])) = k; |
|
|
2021 | k = p; |
|
|
2022 | } |
|
|
2023 | |
|
|
2024 | heap [k] = he; |
|
|
2025 | ev_active (ANHE_w (he)) = k; |
|
|
2026 | } |
|
|
2027 | |
|
|
2028 | /* move an element suitably so it is in a correct place */ |
|
|
2029 | inline_size void |
934 | adjustheap (ANHE *heap, int N, int k) |
2030 | adjustheap (ANHE *heap, int N, int k) |
935 | { |
2031 | { |
936 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
2032 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
937 | upheap (heap, k); |
2033 | upheap (heap, k); |
938 | else |
2034 | else |
939 | downheap (heap, N, k); |
2035 | downheap (heap, N, k); |
940 | } |
2036 | } |
941 | |
2037 | |
|
|
2038 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
2039 | inline_size void |
|
|
2040 | reheap (ANHE *heap, int N) |
|
|
2041 | { |
|
|
2042 | int i; |
|
|
2043 | |
|
|
2044 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
2045 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
2046 | for (i = 0; i < N; ++i) |
|
|
2047 | upheap (heap, i + HEAP0); |
|
|
2048 | } |
|
|
2049 | |
942 | /*****************************************************************************/ |
2050 | /*****************************************************************************/ |
943 | |
2051 | |
|
|
2052 | /* associate signal watchers to a signal signal */ |
944 | typedef struct |
2053 | typedef struct |
945 | { |
2054 | { |
|
|
2055 | EV_ATOMIC_T pending; |
|
|
2056 | #if EV_MULTIPLICITY |
|
|
2057 | EV_P; |
|
|
2058 | #endif |
946 | WL head; |
2059 | WL head; |
947 | EV_ATOMIC_T gotsig; |
|
|
948 | } ANSIG; |
2060 | } ANSIG; |
949 | |
2061 | |
950 | static ANSIG *signals; |
2062 | static ANSIG signals [EV_NSIG - 1]; |
951 | static int signalmax; |
|
|
952 | |
|
|
953 | static EV_ATOMIC_T gotsig; |
|
|
954 | |
|
|
955 | void inline_size |
|
|
956 | signals_init (ANSIG *base, int count) |
|
|
957 | { |
|
|
958 | while (count--) |
|
|
959 | { |
|
|
960 | base->head = 0; |
|
|
961 | base->gotsig = 0; |
|
|
962 | |
|
|
963 | ++base; |
|
|
964 | } |
|
|
965 | } |
|
|
966 | |
2063 | |
967 | /*****************************************************************************/ |
2064 | /*****************************************************************************/ |
968 | |
2065 | |
969 | void inline_speed |
2066 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
970 | fd_intern (int fd) |
|
|
971 | { |
|
|
972 | #ifdef _WIN32 |
|
|
973 | int arg = 1; |
|
|
974 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
975 | #else |
|
|
976 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
977 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
978 | #endif |
|
|
979 | } |
|
|
980 | |
2067 | |
981 | static void noinline |
2068 | static void noinline ecb_cold |
982 | evpipe_init (EV_P) |
2069 | evpipe_init (EV_P) |
983 | { |
2070 | { |
984 | if (!ev_is_active (&pipeev)) |
2071 | if (!ev_is_active (&pipe_w)) |
|
|
2072 | { |
|
|
2073 | int fds [2]; |
|
|
2074 | |
|
|
2075 | # if EV_USE_EVENTFD |
|
|
2076 | fds [0] = -1; |
|
|
2077 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2078 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2079 | fds [1] = eventfd (0, 0); |
|
|
2080 | |
|
|
2081 | if (fds [1] < 0) |
|
|
2082 | # endif |
|
|
2083 | { |
|
|
2084 | while (pipe (fds)) |
|
|
2085 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2086 | |
|
|
2087 | fd_intern (fds [0]); |
|
|
2088 | } |
|
|
2089 | |
|
|
2090 | fd_intern (fds [1]); |
|
|
2091 | |
|
|
2092 | evpipe [0] = fds [0]; |
|
|
2093 | |
|
|
2094 | if (evpipe [1] < 0) |
|
|
2095 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2096 | else |
|
|
2097 | { |
|
|
2098 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2099 | /* so that evpipe_write can always rely on its value. */ |
|
|
2100 | /* this branch does not do anything sensible on windows, */ |
|
|
2101 | /* so must not be executed on windows */ |
|
|
2102 | |
|
|
2103 | dup2 (fds [1], evpipe [1]); |
|
|
2104 | close (fds [1]); |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2108 | ev_io_start (EV_A_ &pipe_w); |
|
|
2109 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
985 | { |
2110 | } |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | inline_speed void |
|
|
2114 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2115 | { |
|
|
2116 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2117 | |
|
|
2118 | if (expect_true (*flag)) |
|
|
2119 | return; |
|
|
2120 | |
|
|
2121 | *flag = 1; |
|
|
2122 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2123 | |
|
|
2124 | pipe_write_skipped = 1; |
|
|
2125 | |
|
|
2126 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2127 | |
|
|
2128 | if (pipe_write_wanted) |
|
|
2129 | { |
|
|
2130 | int old_errno; |
|
|
2131 | |
|
|
2132 | pipe_write_skipped = 0; |
|
|
2133 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2134 | |
|
|
2135 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2136 | |
986 | #if EV_USE_EVENTFD |
2137 | #if EV_USE_EVENTFD |
987 | if ((evfd = eventfd (0, 0)) >= 0) |
2138 | if (evpipe [0] < 0) |
988 | { |
2139 | { |
989 | evpipe [0] = -1; |
2140 | uint64_t counter = 1; |
990 | fd_intern (evfd); |
2141 | write (evpipe [1], &counter, sizeof (uint64_t)); |
991 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
992 | } |
2142 | } |
993 | else |
2143 | else |
994 | #endif |
2144 | #endif |
995 | { |
2145 | { |
996 | while (pipe (evpipe)) |
2146 | #ifdef _WIN32 |
997 | syserr ("(libev) error creating signal/async pipe"); |
2147 | WSABUF buf; |
998 | |
2148 | DWORD sent; |
999 | fd_intern (evpipe [0]); |
2149 | buf.buf = &buf; |
1000 | fd_intern (evpipe [1]); |
2150 | buf.len = 1; |
1001 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
2151 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2152 | #else |
|
|
2153 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2154 | #endif |
1002 | } |
2155 | } |
1003 | |
2156 | |
1004 | ev_io_start (EV_A_ &pipeev); |
2157 | errno = old_errno; |
1005 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1006 | } |
|
|
1007 | } |
|
|
1008 | |
|
|
1009 | void inline_size |
|
|
1010 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1011 | { |
|
|
1012 | if (!*flag) |
|
|
1013 | { |
2158 | } |
1014 | int old_errno = errno; /* save errno because write might clobber it */ |
2159 | } |
1015 | |
2160 | |
1016 | *flag = 1; |
2161 | /* called whenever the libev signal pipe */ |
|
|
2162 | /* got some events (signal, async) */ |
|
|
2163 | static void |
|
|
2164 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
2165 | { |
|
|
2166 | int i; |
1017 | |
2167 | |
|
|
2168 | if (revents & EV_READ) |
|
|
2169 | { |
1018 | #if EV_USE_EVENTFD |
2170 | #if EV_USE_EVENTFD |
1019 | if (evfd >= 0) |
2171 | if (evpipe [0] < 0) |
1020 | { |
2172 | { |
1021 | uint64_t counter = 1; |
2173 | uint64_t counter; |
1022 | write (evfd, &counter, sizeof (uint64_t)); |
2174 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1023 | } |
2175 | } |
1024 | else |
2176 | else |
1025 | #endif |
2177 | #endif |
1026 | write (evpipe [1], &old_errno, 1); |
2178 | { |
1027 | |
|
|
1028 | errno = old_errno; |
|
|
1029 | } |
|
|
1030 | } |
|
|
1031 | |
|
|
1032 | static void |
|
|
1033 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1034 | { |
|
|
1035 | #if EV_USE_EVENTFD |
|
|
1036 | if (evfd >= 0) |
|
|
1037 | { |
|
|
1038 | uint64_t counter; |
|
|
1039 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1040 | } |
|
|
1041 | else |
|
|
1042 | #endif |
|
|
1043 | { |
|
|
1044 | char dummy; |
2179 | char dummy[4]; |
|
|
2180 | #ifdef _WIN32 |
|
|
2181 | WSABUF buf; |
|
|
2182 | DWORD recvd; |
|
|
2183 | DWORD flags = 0; |
|
|
2184 | buf.buf = dummy; |
|
|
2185 | buf.len = sizeof (dummy); |
|
|
2186 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2187 | #else |
1045 | read (evpipe [0], &dummy, 1); |
2188 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2189 | #endif |
|
|
2190 | } |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | pipe_write_skipped = 0; |
|
|
2194 | |
|
|
2195 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2196 | |
|
|
2197 | #if EV_SIGNAL_ENABLE |
|
|
2198 | if (sig_pending) |
1046 | } |
2199 | { |
|
|
2200 | sig_pending = 0; |
1047 | |
2201 | |
1048 | if (gotsig && ev_is_default_loop (EV_A)) |
2202 | ECB_MEMORY_FENCE; |
1049 | { |
|
|
1050 | int signum; |
|
|
1051 | gotsig = 0; |
|
|
1052 | |
2203 | |
1053 | for (signum = signalmax; signum--; ) |
2204 | for (i = EV_NSIG - 1; i--; ) |
1054 | if (signals [signum].gotsig) |
2205 | if (expect_false (signals [i].pending)) |
1055 | ev_feed_signal_event (EV_A_ signum + 1); |
2206 | ev_feed_signal_event (EV_A_ i + 1); |
1056 | } |
2207 | } |
|
|
2208 | #endif |
1057 | |
2209 | |
1058 | #if EV_ASYNC_ENABLE |
2210 | #if EV_ASYNC_ENABLE |
1059 | if (gotasync) |
2211 | if (async_pending) |
1060 | { |
2212 | { |
1061 | int i; |
2213 | async_pending = 0; |
1062 | gotasync = 0; |
2214 | |
|
|
2215 | ECB_MEMORY_FENCE; |
1063 | |
2216 | |
1064 | for (i = asynccnt; i--; ) |
2217 | for (i = asynccnt; i--; ) |
1065 | if (asyncs [i]->sent) |
2218 | if (asyncs [i]->sent) |
1066 | { |
2219 | { |
1067 | asyncs [i]->sent = 0; |
2220 | asyncs [i]->sent = 0; |
|
|
2221 | ECB_MEMORY_FENCE_RELEASE; |
1068 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2222 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1069 | } |
2223 | } |
1070 | } |
2224 | } |
1071 | #endif |
2225 | #endif |
1072 | } |
2226 | } |
1073 | |
2227 | |
1074 | /*****************************************************************************/ |
2228 | /*****************************************************************************/ |
1075 | |
2229 | |
|
|
2230 | void |
|
|
2231 | ev_feed_signal (int signum) EV_THROW |
|
|
2232 | { |
|
|
2233 | #if EV_MULTIPLICITY |
|
|
2234 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2235 | EV_P = signals [signum - 1].loop; |
|
|
2236 | |
|
|
2237 | if (!EV_A) |
|
|
2238 | return; |
|
|
2239 | #endif |
|
|
2240 | |
|
|
2241 | signals [signum - 1].pending = 1; |
|
|
2242 | evpipe_write (EV_A_ &sig_pending); |
|
|
2243 | } |
|
|
2244 | |
1076 | static void |
2245 | static void |
1077 | ev_sighandler (int signum) |
2246 | ev_sighandler (int signum) |
1078 | { |
2247 | { |
|
|
2248 | #ifdef _WIN32 |
|
|
2249 | signal (signum, ev_sighandler); |
|
|
2250 | #endif |
|
|
2251 | |
|
|
2252 | ev_feed_signal (signum); |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | void noinline |
|
|
2256 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
|
|
2257 | { |
|
|
2258 | WL w; |
|
|
2259 | |
|
|
2260 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
|
|
2261 | return; |
|
|
2262 | |
|
|
2263 | --signum; |
|
|
2264 | |
1079 | #if EV_MULTIPLICITY |
2265 | #if EV_MULTIPLICITY |
1080 | struct ev_loop *loop = &default_loop_struct; |
2266 | /* it is permissible to try to feed a signal to the wrong loop */ |
1081 | #endif |
2267 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1082 | |
2268 | |
1083 | #if _WIN32 |
2269 | if (expect_false (signals [signum].loop != EV_A)) |
1084 | signal (signum, ev_sighandler); |
|
|
1085 | #endif |
|
|
1086 | |
|
|
1087 | signals [signum - 1].gotsig = 1; |
|
|
1088 | evpipe_write (EV_A_ &gotsig); |
|
|
1089 | } |
|
|
1090 | |
|
|
1091 | void noinline |
|
|
1092 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1093 | { |
|
|
1094 | WL w; |
|
|
1095 | |
|
|
1096 | #if EV_MULTIPLICITY |
|
|
1097 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1098 | #endif |
|
|
1099 | |
|
|
1100 | --signum; |
|
|
1101 | |
|
|
1102 | if (signum < 0 || signum >= signalmax) |
|
|
1103 | return; |
2270 | return; |
|
|
2271 | #endif |
1104 | |
2272 | |
1105 | signals [signum].gotsig = 0; |
2273 | signals [signum].pending = 0; |
|
|
2274 | ECB_MEMORY_FENCE_RELEASE; |
1106 | |
2275 | |
1107 | for (w = signals [signum].head; w; w = w->next) |
2276 | for (w = signals [signum].head; w; w = w->next) |
1108 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2277 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1109 | } |
2278 | } |
1110 | |
2279 | |
|
|
2280 | #if EV_USE_SIGNALFD |
|
|
2281 | static void |
|
|
2282 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2283 | { |
|
|
2284 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2285 | |
|
|
2286 | for (;;) |
|
|
2287 | { |
|
|
2288 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2289 | |
|
|
2290 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2291 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2292 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2293 | |
|
|
2294 | if (res < (ssize_t)sizeof (si)) |
|
|
2295 | break; |
|
|
2296 | } |
|
|
2297 | } |
|
|
2298 | #endif |
|
|
2299 | |
|
|
2300 | #endif |
|
|
2301 | |
1111 | /*****************************************************************************/ |
2302 | /*****************************************************************************/ |
1112 | |
2303 | |
|
|
2304 | #if EV_CHILD_ENABLE |
1113 | static WL childs [EV_PID_HASHSIZE]; |
2305 | static WL childs [EV_PID_HASHSIZE]; |
1114 | |
|
|
1115 | #ifndef _WIN32 |
|
|
1116 | |
2306 | |
1117 | static ev_signal childev; |
2307 | static ev_signal childev; |
1118 | |
2308 | |
1119 | #ifndef WIFCONTINUED |
2309 | #ifndef WIFCONTINUED |
1120 | # define WIFCONTINUED(status) 0 |
2310 | # define WIFCONTINUED(status) 0 |
1121 | #endif |
2311 | #endif |
1122 | |
2312 | |
1123 | void inline_speed |
2313 | /* handle a single child status event */ |
|
|
2314 | inline_speed void |
1124 | child_reap (EV_P_ int chain, int pid, int status) |
2315 | child_reap (EV_P_ int chain, int pid, int status) |
1125 | { |
2316 | { |
1126 | ev_child *w; |
2317 | ev_child *w; |
1127 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2318 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1128 | |
2319 | |
1129 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2320 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1130 | { |
2321 | { |
1131 | if ((w->pid == pid || !w->pid) |
2322 | if ((w->pid == pid || !w->pid) |
1132 | && (!traced || (w->flags & 1))) |
2323 | && (!traced || (w->flags & 1))) |
1133 | { |
2324 | { |
1134 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2325 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1141 | |
2332 | |
1142 | #ifndef WCONTINUED |
2333 | #ifndef WCONTINUED |
1143 | # define WCONTINUED 0 |
2334 | # define WCONTINUED 0 |
1144 | #endif |
2335 | #endif |
1145 | |
2336 | |
|
|
2337 | /* called on sigchld etc., calls waitpid */ |
1146 | static void |
2338 | static void |
1147 | childcb (EV_P_ ev_signal *sw, int revents) |
2339 | childcb (EV_P_ ev_signal *sw, int revents) |
1148 | { |
2340 | { |
1149 | int pid, status; |
2341 | int pid, status; |
1150 | |
2342 | |
… | |
… | |
1158 | /* make sure we are called again until all children have been reaped */ |
2350 | /* make sure we are called again until all children have been reaped */ |
1159 | /* we need to do it this way so that the callback gets called before we continue */ |
2351 | /* we need to do it this way so that the callback gets called before we continue */ |
1160 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2352 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1161 | |
2353 | |
1162 | child_reap (EV_A_ pid, pid, status); |
2354 | child_reap (EV_A_ pid, pid, status); |
1163 | if (EV_PID_HASHSIZE > 1) |
2355 | if ((EV_PID_HASHSIZE) > 1) |
1164 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2356 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1165 | } |
2357 | } |
1166 | |
2358 | |
1167 | #endif |
2359 | #endif |
1168 | |
2360 | |
1169 | /*****************************************************************************/ |
2361 | /*****************************************************************************/ |
1170 | |
2362 | |
|
|
2363 | #if EV_USE_IOCP |
|
|
2364 | # include "ev_iocp.c" |
|
|
2365 | #endif |
1171 | #if EV_USE_PORT |
2366 | #if EV_USE_PORT |
1172 | # include "ev_port.c" |
2367 | # include "ev_port.c" |
1173 | #endif |
2368 | #endif |
1174 | #if EV_USE_KQUEUE |
2369 | #if EV_USE_KQUEUE |
1175 | # include "ev_kqueue.c" |
2370 | # include "ev_kqueue.c" |
… | |
… | |
1182 | #endif |
2377 | #endif |
1183 | #if EV_USE_SELECT |
2378 | #if EV_USE_SELECT |
1184 | # include "ev_select.c" |
2379 | # include "ev_select.c" |
1185 | #endif |
2380 | #endif |
1186 | |
2381 | |
1187 | int |
2382 | int ecb_cold |
1188 | ev_version_major (void) |
2383 | ev_version_major (void) EV_THROW |
1189 | { |
2384 | { |
1190 | return EV_VERSION_MAJOR; |
2385 | return EV_VERSION_MAJOR; |
1191 | } |
2386 | } |
1192 | |
2387 | |
1193 | int |
2388 | int ecb_cold |
1194 | ev_version_minor (void) |
2389 | ev_version_minor (void) EV_THROW |
1195 | { |
2390 | { |
1196 | return EV_VERSION_MINOR; |
2391 | return EV_VERSION_MINOR; |
1197 | } |
2392 | } |
1198 | |
2393 | |
1199 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2394 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1200 | int inline_size |
2395 | int inline_size ecb_cold |
1201 | enable_secure (void) |
2396 | enable_secure (void) |
1202 | { |
2397 | { |
1203 | #ifdef _WIN32 |
2398 | #ifdef _WIN32 |
1204 | return 0; |
2399 | return 0; |
1205 | #else |
2400 | #else |
1206 | return getuid () != geteuid () |
2401 | return getuid () != geteuid () |
1207 | || getgid () != getegid (); |
2402 | || getgid () != getegid (); |
1208 | #endif |
2403 | #endif |
1209 | } |
2404 | } |
1210 | |
2405 | |
1211 | unsigned int |
2406 | unsigned int ecb_cold |
1212 | ev_supported_backends (void) |
2407 | ev_supported_backends (void) EV_THROW |
1213 | { |
2408 | { |
1214 | unsigned int flags = 0; |
2409 | unsigned int flags = 0; |
1215 | |
2410 | |
1216 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2411 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1217 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2412 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1220 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2415 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1221 | |
2416 | |
1222 | return flags; |
2417 | return flags; |
1223 | } |
2418 | } |
1224 | |
2419 | |
1225 | unsigned int |
2420 | unsigned int ecb_cold |
1226 | ev_recommended_backends (void) |
2421 | ev_recommended_backends (void) EV_THROW |
1227 | { |
2422 | { |
1228 | unsigned int flags = ev_supported_backends (); |
2423 | unsigned int flags = ev_supported_backends (); |
1229 | |
2424 | |
1230 | #ifndef __NetBSD__ |
2425 | #ifndef __NetBSD__ |
1231 | /* kqueue is borked on everything but netbsd apparently */ |
2426 | /* kqueue is borked on everything but netbsd apparently */ |
1232 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2427 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1233 | flags &= ~EVBACKEND_KQUEUE; |
2428 | flags &= ~EVBACKEND_KQUEUE; |
1234 | #endif |
2429 | #endif |
1235 | #ifdef __APPLE__ |
2430 | #ifdef __APPLE__ |
1236 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2431 | /* only select works correctly on that "unix-certified" platform */ |
1237 | flags &= ~EVBACKEND_POLL; |
2432 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2433 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2434 | #endif |
|
|
2435 | #ifdef __FreeBSD__ |
|
|
2436 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1238 | #endif |
2437 | #endif |
1239 | |
2438 | |
1240 | return flags; |
2439 | return flags; |
1241 | } |
2440 | } |
1242 | |
2441 | |
|
|
2442 | unsigned int ecb_cold |
|
|
2443 | ev_embeddable_backends (void) EV_THROW |
|
|
2444 | { |
|
|
2445 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2446 | |
|
|
2447 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2448 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2449 | flags &= ~EVBACKEND_EPOLL; |
|
|
2450 | |
|
|
2451 | return flags; |
|
|
2452 | } |
|
|
2453 | |
1243 | unsigned int |
2454 | unsigned int |
1244 | ev_embeddable_backends (void) |
2455 | ev_backend (EV_P) EV_THROW |
1245 | { |
2456 | { |
1246 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2457 | return backend; |
1247 | |
|
|
1248 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1249 | /* please fix it and tell me how to detect the fix */ |
|
|
1250 | flags &= ~EVBACKEND_EPOLL; |
|
|
1251 | |
|
|
1252 | return flags; |
|
|
1253 | } |
2458 | } |
1254 | |
2459 | |
|
|
2460 | #if EV_FEATURE_API |
1255 | unsigned int |
2461 | unsigned int |
1256 | ev_backend (EV_P) |
2462 | ev_iteration (EV_P) EV_THROW |
1257 | { |
2463 | { |
1258 | return backend; |
2464 | return loop_count; |
1259 | } |
2465 | } |
1260 | |
2466 | |
1261 | unsigned int |
2467 | unsigned int |
1262 | ev_loop_count (EV_P) |
2468 | ev_depth (EV_P) EV_THROW |
1263 | { |
2469 | { |
1264 | return loop_count; |
2470 | return loop_depth; |
1265 | } |
2471 | } |
1266 | |
2472 | |
1267 | void |
2473 | void |
1268 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2474 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1269 | { |
2475 | { |
1270 | io_blocktime = interval; |
2476 | io_blocktime = interval; |
1271 | } |
2477 | } |
1272 | |
2478 | |
1273 | void |
2479 | void |
1274 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2480 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1275 | { |
2481 | { |
1276 | timeout_blocktime = interval; |
2482 | timeout_blocktime = interval; |
1277 | } |
2483 | } |
1278 | |
2484 | |
|
|
2485 | void |
|
|
2486 | ev_set_userdata (EV_P_ void *data) EV_THROW |
|
|
2487 | { |
|
|
2488 | userdata = data; |
|
|
2489 | } |
|
|
2490 | |
|
|
2491 | void * |
|
|
2492 | ev_userdata (EV_P) EV_THROW |
|
|
2493 | { |
|
|
2494 | return userdata; |
|
|
2495 | } |
|
|
2496 | |
|
|
2497 | void |
|
|
2498 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
|
|
2499 | { |
|
|
2500 | invoke_cb = invoke_pending_cb; |
|
|
2501 | } |
|
|
2502 | |
|
|
2503 | void |
|
|
2504 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
|
|
2505 | { |
|
|
2506 | release_cb = release; |
|
|
2507 | acquire_cb = acquire; |
|
|
2508 | } |
|
|
2509 | #endif |
|
|
2510 | |
|
|
2511 | /* initialise a loop structure, must be zero-initialised */ |
1279 | static void noinline |
2512 | static void noinline ecb_cold |
1280 | loop_init (EV_P_ unsigned int flags) |
2513 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1281 | { |
2514 | { |
1282 | if (!backend) |
2515 | if (!backend) |
1283 | { |
2516 | { |
|
|
2517 | origflags = flags; |
|
|
2518 | |
|
|
2519 | #if EV_USE_REALTIME |
|
|
2520 | if (!have_realtime) |
|
|
2521 | { |
|
|
2522 | struct timespec ts; |
|
|
2523 | |
|
|
2524 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2525 | have_realtime = 1; |
|
|
2526 | } |
|
|
2527 | #endif |
|
|
2528 | |
1284 | #if EV_USE_MONOTONIC |
2529 | #if EV_USE_MONOTONIC |
|
|
2530 | if (!have_monotonic) |
1285 | { |
2531 | { |
1286 | struct timespec ts; |
2532 | struct timespec ts; |
|
|
2533 | |
1287 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2534 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1288 | have_monotonic = 1; |
2535 | have_monotonic = 1; |
1289 | } |
2536 | } |
1290 | #endif |
|
|
1291 | |
|
|
1292 | ev_rt_now = ev_time (); |
|
|
1293 | mn_now = get_clock (); |
|
|
1294 | now_floor = mn_now; |
|
|
1295 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1296 | |
|
|
1297 | io_blocktime = 0.; |
|
|
1298 | timeout_blocktime = 0.; |
|
|
1299 | backend = 0; |
|
|
1300 | backend_fd = -1; |
|
|
1301 | gotasync = 0; |
|
|
1302 | #if EV_USE_INOTIFY |
|
|
1303 | fs_fd = -2; |
|
|
1304 | #endif |
2537 | #endif |
1305 | |
2538 | |
1306 | /* pid check not overridable via env */ |
2539 | /* pid check not overridable via env */ |
1307 | #ifndef _WIN32 |
2540 | #ifndef _WIN32 |
1308 | if (flags & EVFLAG_FORKCHECK) |
2541 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1312 | if (!(flags & EVFLAG_NOENV) |
2545 | if (!(flags & EVFLAG_NOENV) |
1313 | && !enable_secure () |
2546 | && !enable_secure () |
1314 | && getenv ("LIBEV_FLAGS")) |
2547 | && getenv ("LIBEV_FLAGS")) |
1315 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2548 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1316 | |
2549 | |
1317 | if (!(flags & 0x0000ffffU)) |
2550 | ev_rt_now = ev_time (); |
|
|
2551 | mn_now = get_clock (); |
|
|
2552 | now_floor = mn_now; |
|
|
2553 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2554 | #if EV_FEATURE_API |
|
|
2555 | invoke_cb = ev_invoke_pending; |
|
|
2556 | #endif |
|
|
2557 | |
|
|
2558 | io_blocktime = 0.; |
|
|
2559 | timeout_blocktime = 0.; |
|
|
2560 | backend = 0; |
|
|
2561 | backend_fd = -1; |
|
|
2562 | sig_pending = 0; |
|
|
2563 | #if EV_ASYNC_ENABLE |
|
|
2564 | async_pending = 0; |
|
|
2565 | #endif |
|
|
2566 | pipe_write_skipped = 0; |
|
|
2567 | pipe_write_wanted = 0; |
|
|
2568 | evpipe [0] = -1; |
|
|
2569 | evpipe [1] = -1; |
|
|
2570 | #if EV_USE_INOTIFY |
|
|
2571 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2572 | #endif |
|
|
2573 | #if EV_USE_SIGNALFD |
|
|
2574 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2575 | #endif |
|
|
2576 | |
|
|
2577 | if (!(flags & EVBACKEND_MASK)) |
1318 | flags |= ev_recommended_backends (); |
2578 | flags |= ev_recommended_backends (); |
1319 | |
2579 | |
|
|
2580 | #if EV_USE_IOCP |
|
|
2581 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2582 | #endif |
1320 | #if EV_USE_PORT |
2583 | #if EV_USE_PORT |
1321 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2584 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1322 | #endif |
2585 | #endif |
1323 | #if EV_USE_KQUEUE |
2586 | #if EV_USE_KQUEUE |
1324 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2587 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1331 | #endif |
2594 | #endif |
1332 | #if EV_USE_SELECT |
2595 | #if EV_USE_SELECT |
1333 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2596 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1334 | #endif |
2597 | #endif |
1335 | |
2598 | |
|
|
2599 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2600 | |
|
|
2601 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1336 | ev_init (&pipeev, pipecb); |
2602 | ev_init (&pipe_w, pipecb); |
1337 | ev_set_priority (&pipeev, EV_MAXPRI); |
2603 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2604 | #endif |
1338 | } |
2605 | } |
1339 | } |
2606 | } |
1340 | |
2607 | |
1341 | static void noinline |
2608 | /* free up a loop structure */ |
|
|
2609 | void ecb_cold |
1342 | loop_destroy (EV_P) |
2610 | ev_loop_destroy (EV_P) |
1343 | { |
2611 | { |
1344 | int i; |
2612 | int i; |
1345 | |
2613 | |
|
|
2614 | #if EV_MULTIPLICITY |
|
|
2615 | /* mimic free (0) */ |
|
|
2616 | if (!EV_A) |
|
|
2617 | return; |
|
|
2618 | #endif |
|
|
2619 | |
|
|
2620 | #if EV_CLEANUP_ENABLE |
|
|
2621 | /* queue cleanup watchers (and execute them) */ |
|
|
2622 | if (expect_false (cleanupcnt)) |
|
|
2623 | { |
|
|
2624 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2625 | EV_INVOKE_PENDING; |
|
|
2626 | } |
|
|
2627 | #endif |
|
|
2628 | |
|
|
2629 | #if EV_CHILD_ENABLE |
|
|
2630 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2631 | { |
|
|
2632 | ev_ref (EV_A); /* child watcher */ |
|
|
2633 | ev_signal_stop (EV_A_ &childev); |
|
|
2634 | } |
|
|
2635 | #endif |
|
|
2636 | |
1346 | if (ev_is_active (&pipeev)) |
2637 | if (ev_is_active (&pipe_w)) |
1347 | { |
2638 | { |
1348 | ev_ref (EV_A); /* signal watcher */ |
2639 | /*ev_ref (EV_A);*/ |
1349 | ev_io_stop (EV_A_ &pipeev); |
2640 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1350 | |
2641 | |
|
|
2642 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2643 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2644 | } |
|
|
2645 | |
1351 | #if EV_USE_EVENTFD |
2646 | #if EV_USE_SIGNALFD |
1352 | if (evfd >= 0) |
2647 | if (ev_is_active (&sigfd_w)) |
1353 | close (evfd); |
2648 | close (sigfd); |
1354 | #endif |
2649 | #endif |
1355 | |
|
|
1356 | if (evpipe [0] >= 0) |
|
|
1357 | { |
|
|
1358 | close (evpipe [0]); |
|
|
1359 | close (evpipe [1]); |
|
|
1360 | } |
|
|
1361 | } |
|
|
1362 | |
2650 | |
1363 | #if EV_USE_INOTIFY |
2651 | #if EV_USE_INOTIFY |
1364 | if (fs_fd >= 0) |
2652 | if (fs_fd >= 0) |
1365 | close (fs_fd); |
2653 | close (fs_fd); |
1366 | #endif |
2654 | #endif |
1367 | |
2655 | |
1368 | if (backend_fd >= 0) |
2656 | if (backend_fd >= 0) |
1369 | close (backend_fd); |
2657 | close (backend_fd); |
1370 | |
2658 | |
|
|
2659 | #if EV_USE_IOCP |
|
|
2660 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2661 | #endif |
1371 | #if EV_USE_PORT |
2662 | #if EV_USE_PORT |
1372 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2663 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1373 | #endif |
2664 | #endif |
1374 | #if EV_USE_KQUEUE |
2665 | #if EV_USE_KQUEUE |
1375 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2666 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1390 | #if EV_IDLE_ENABLE |
2681 | #if EV_IDLE_ENABLE |
1391 | array_free (idle, [i]); |
2682 | array_free (idle, [i]); |
1392 | #endif |
2683 | #endif |
1393 | } |
2684 | } |
1394 | |
2685 | |
1395 | ev_free (anfds); anfdmax = 0; |
2686 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1396 | |
2687 | |
1397 | /* have to use the microsoft-never-gets-it-right macro */ |
2688 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2689 | array_free (rfeed, EMPTY); |
1398 | array_free (fdchange, EMPTY); |
2690 | array_free (fdchange, EMPTY); |
1399 | array_free (timer, EMPTY); |
2691 | array_free (timer, EMPTY); |
1400 | #if EV_PERIODIC_ENABLE |
2692 | #if EV_PERIODIC_ENABLE |
1401 | array_free (periodic, EMPTY); |
2693 | array_free (periodic, EMPTY); |
1402 | #endif |
2694 | #endif |
1403 | #if EV_FORK_ENABLE |
2695 | #if EV_FORK_ENABLE |
1404 | array_free (fork, EMPTY); |
2696 | array_free (fork, EMPTY); |
1405 | #endif |
2697 | #endif |
|
|
2698 | #if EV_CLEANUP_ENABLE |
|
|
2699 | array_free (cleanup, EMPTY); |
|
|
2700 | #endif |
1406 | array_free (prepare, EMPTY); |
2701 | array_free (prepare, EMPTY); |
1407 | array_free (check, EMPTY); |
2702 | array_free (check, EMPTY); |
1408 | #if EV_ASYNC_ENABLE |
2703 | #if EV_ASYNC_ENABLE |
1409 | array_free (async, EMPTY); |
2704 | array_free (async, EMPTY); |
1410 | #endif |
2705 | #endif |
1411 | |
2706 | |
1412 | backend = 0; |
2707 | backend = 0; |
|
|
2708 | |
|
|
2709 | #if EV_MULTIPLICITY |
|
|
2710 | if (ev_is_default_loop (EV_A)) |
|
|
2711 | #endif |
|
|
2712 | ev_default_loop_ptr = 0; |
|
|
2713 | #if EV_MULTIPLICITY |
|
|
2714 | else |
|
|
2715 | ev_free (EV_A); |
|
|
2716 | #endif |
1413 | } |
2717 | } |
1414 | |
2718 | |
1415 | #if EV_USE_INOTIFY |
2719 | #if EV_USE_INOTIFY |
1416 | void inline_size infy_fork (EV_P); |
2720 | inline_size void infy_fork (EV_P); |
1417 | #endif |
2721 | #endif |
1418 | |
2722 | |
1419 | void inline_size |
2723 | inline_size void |
1420 | loop_fork (EV_P) |
2724 | loop_fork (EV_P) |
1421 | { |
2725 | { |
1422 | #if EV_USE_PORT |
2726 | #if EV_USE_PORT |
1423 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2727 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1424 | #endif |
2728 | #endif |
… | |
… | |
1430 | #endif |
2734 | #endif |
1431 | #if EV_USE_INOTIFY |
2735 | #if EV_USE_INOTIFY |
1432 | infy_fork (EV_A); |
2736 | infy_fork (EV_A); |
1433 | #endif |
2737 | #endif |
1434 | |
2738 | |
|
|
2739 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1435 | if (ev_is_active (&pipeev)) |
2740 | if (ev_is_active (&pipe_w)) |
|
|
2741 | { |
|
|
2742 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
|
|
2743 | |
|
|
2744 | ev_ref (EV_A); |
|
|
2745 | ev_io_stop (EV_A_ &pipe_w); |
|
|
2746 | |
|
|
2747 | if (evpipe [0] >= 0) |
|
|
2748 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2749 | |
|
|
2750 | evpipe_init (EV_A); |
|
|
2751 | /* iterate over everything, in case we missed something before */ |
|
|
2752 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1436 | { |
2753 | } |
1437 | /* this "locks" the handlers against writing to the pipe */ |
2754 | #endif |
1438 | /* while we modify the fd vars */ |
2755 | |
1439 | gotsig = 1; |
2756 | postfork = 0; |
|
|
2757 | } |
|
|
2758 | |
|
|
2759 | #if EV_MULTIPLICITY |
|
|
2760 | |
|
|
2761 | struct ev_loop * ecb_cold |
|
|
2762 | ev_loop_new (unsigned int flags) EV_THROW |
|
|
2763 | { |
|
|
2764 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
2765 | |
|
|
2766 | memset (EV_A, 0, sizeof (struct ev_loop)); |
|
|
2767 | loop_init (EV_A_ flags); |
|
|
2768 | |
|
|
2769 | if (ev_backend (EV_A)) |
|
|
2770 | return EV_A; |
|
|
2771 | |
|
|
2772 | ev_free (EV_A); |
|
|
2773 | return 0; |
|
|
2774 | } |
|
|
2775 | |
|
|
2776 | #endif /* multiplicity */ |
|
|
2777 | |
|
|
2778 | #if EV_VERIFY |
|
|
2779 | static void noinline ecb_cold |
|
|
2780 | verify_watcher (EV_P_ W w) |
|
|
2781 | { |
|
|
2782 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
2783 | |
|
|
2784 | if (w->pending) |
|
|
2785 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2786 | } |
|
|
2787 | |
|
|
2788 | static void noinline ecb_cold |
|
|
2789 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2790 | { |
|
|
2791 | int i; |
|
|
2792 | |
|
|
2793 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2794 | { |
|
|
2795 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2796 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2797 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2798 | |
|
|
2799 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2800 | } |
|
|
2801 | } |
|
|
2802 | |
|
|
2803 | static void noinline ecb_cold |
|
|
2804 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2805 | { |
|
|
2806 | while (cnt--) |
|
|
2807 | { |
|
|
2808 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2809 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2810 | } |
|
|
2811 | } |
|
|
2812 | #endif |
|
|
2813 | |
|
|
2814 | #if EV_FEATURE_API |
|
|
2815 | void ecb_cold |
|
|
2816 | ev_verify (EV_P) EV_THROW |
|
|
2817 | { |
|
|
2818 | #if EV_VERIFY |
|
|
2819 | int i; |
|
|
2820 | WL w, w2; |
|
|
2821 | |
|
|
2822 | assert (activecnt >= -1); |
|
|
2823 | |
|
|
2824 | assert (fdchangemax >= fdchangecnt); |
|
|
2825 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2826 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2827 | |
|
|
2828 | assert (anfdmax >= 0); |
|
|
2829 | for (i = 0; i < anfdmax; ++i) |
|
|
2830 | { |
|
|
2831 | int j = 0; |
|
|
2832 | |
|
|
2833 | for (w = w2 = anfds [i].head; w; w = w->next) |
|
|
2834 | { |
|
|
2835 | verify_watcher (EV_A_ (W)w); |
|
|
2836 | |
|
|
2837 | if (j++ & 1) |
|
|
2838 | { |
|
|
2839 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2840 | w2 = w2->next; |
|
|
2841 | } |
|
|
2842 | |
|
|
2843 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2844 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2845 | } |
|
|
2846 | } |
|
|
2847 | |
|
|
2848 | assert (timermax >= timercnt); |
|
|
2849 | verify_heap (EV_A_ timers, timercnt); |
|
|
2850 | |
|
|
2851 | #if EV_PERIODIC_ENABLE |
|
|
2852 | assert (periodicmax >= periodiccnt); |
|
|
2853 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2854 | #endif |
|
|
2855 | |
|
|
2856 | for (i = NUMPRI; i--; ) |
|
|
2857 | { |
|
|
2858 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2859 | #if EV_IDLE_ENABLE |
|
|
2860 | assert (idleall >= 0); |
|
|
2861 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2862 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2863 | #endif |
|
|
2864 | } |
|
|
2865 | |
|
|
2866 | #if EV_FORK_ENABLE |
|
|
2867 | assert (forkmax >= forkcnt); |
|
|
2868 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2869 | #endif |
|
|
2870 | |
|
|
2871 | #if EV_CLEANUP_ENABLE |
|
|
2872 | assert (cleanupmax >= cleanupcnt); |
|
|
2873 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2874 | #endif |
|
|
2875 | |
1440 | #if EV_ASYNC_ENABLE |
2876 | #if EV_ASYNC_ENABLE |
1441 | gotasync = 1; |
2877 | assert (asyncmax >= asynccnt); |
|
|
2878 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2879 | #endif |
|
|
2880 | |
|
|
2881 | #if EV_PREPARE_ENABLE |
|
|
2882 | assert (preparemax >= preparecnt); |
|
|
2883 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2884 | #endif |
|
|
2885 | |
|
|
2886 | #if EV_CHECK_ENABLE |
|
|
2887 | assert (checkmax >= checkcnt); |
|
|
2888 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2889 | #endif |
|
|
2890 | |
|
|
2891 | # if 0 |
|
|
2892 | #if EV_CHILD_ENABLE |
|
|
2893 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2894 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2895 | #endif |
1442 | #endif |
2896 | # endif |
1443 | |
|
|
1444 | ev_ref (EV_A); |
|
|
1445 | ev_io_stop (EV_A_ &pipeev); |
|
|
1446 | |
|
|
1447 | #if EV_USE_EVENTFD |
|
|
1448 | if (evfd >= 0) |
|
|
1449 | close (evfd); |
|
|
1450 | #endif |
2897 | #endif |
1451 | |
|
|
1452 | if (evpipe [0] >= 0) |
|
|
1453 | { |
|
|
1454 | close (evpipe [0]); |
|
|
1455 | close (evpipe [1]); |
|
|
1456 | } |
|
|
1457 | |
|
|
1458 | evpipe_init (EV_A); |
|
|
1459 | /* now iterate over everything, in case we missed something */ |
|
|
1460 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1461 | } |
|
|
1462 | |
|
|
1463 | postfork = 0; |
|
|
1464 | } |
2898 | } |
|
|
2899 | #endif |
1465 | |
2900 | |
1466 | #if EV_MULTIPLICITY |
2901 | #if EV_MULTIPLICITY |
1467 | struct ev_loop * |
2902 | struct ev_loop * ecb_cold |
1468 | ev_loop_new (unsigned int flags) |
|
|
1469 | { |
|
|
1470 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1471 | |
|
|
1472 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1473 | |
|
|
1474 | loop_init (EV_A_ flags); |
|
|
1475 | |
|
|
1476 | if (ev_backend (EV_A)) |
|
|
1477 | return loop; |
|
|
1478 | |
|
|
1479 | return 0; |
|
|
1480 | } |
|
|
1481 | |
|
|
1482 | void |
|
|
1483 | ev_loop_destroy (EV_P) |
|
|
1484 | { |
|
|
1485 | loop_destroy (EV_A); |
|
|
1486 | ev_free (loop); |
|
|
1487 | } |
|
|
1488 | |
|
|
1489 | void |
|
|
1490 | ev_loop_fork (EV_P) |
|
|
1491 | { |
|
|
1492 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1493 | } |
|
|
1494 | #endif |
|
|
1495 | |
|
|
1496 | #if EV_MULTIPLICITY |
|
|
1497 | struct ev_loop * |
|
|
1498 | ev_default_loop_init (unsigned int flags) |
|
|
1499 | #else |
2903 | #else |
1500 | int |
2904 | int |
|
|
2905 | #endif |
1501 | ev_default_loop (unsigned int flags) |
2906 | ev_default_loop (unsigned int flags) EV_THROW |
1502 | #endif |
|
|
1503 | { |
2907 | { |
1504 | if (!ev_default_loop_ptr) |
2908 | if (!ev_default_loop_ptr) |
1505 | { |
2909 | { |
1506 | #if EV_MULTIPLICITY |
2910 | #if EV_MULTIPLICITY |
1507 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2911 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1508 | #else |
2912 | #else |
1509 | ev_default_loop_ptr = 1; |
2913 | ev_default_loop_ptr = 1; |
1510 | #endif |
2914 | #endif |
1511 | |
2915 | |
1512 | loop_init (EV_A_ flags); |
2916 | loop_init (EV_A_ flags); |
1513 | |
2917 | |
1514 | if (ev_backend (EV_A)) |
2918 | if (ev_backend (EV_A)) |
1515 | { |
2919 | { |
1516 | #ifndef _WIN32 |
2920 | #if EV_CHILD_ENABLE |
1517 | ev_signal_init (&childev, childcb, SIGCHLD); |
2921 | ev_signal_init (&childev, childcb, SIGCHLD); |
1518 | ev_set_priority (&childev, EV_MAXPRI); |
2922 | ev_set_priority (&childev, EV_MAXPRI); |
1519 | ev_signal_start (EV_A_ &childev); |
2923 | ev_signal_start (EV_A_ &childev); |
1520 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2924 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1521 | #endif |
2925 | #endif |
… | |
… | |
1526 | |
2930 | |
1527 | return ev_default_loop_ptr; |
2931 | return ev_default_loop_ptr; |
1528 | } |
2932 | } |
1529 | |
2933 | |
1530 | void |
2934 | void |
1531 | ev_default_destroy (void) |
2935 | ev_loop_fork (EV_P) EV_THROW |
1532 | { |
2936 | { |
1533 | #if EV_MULTIPLICITY |
2937 | postfork = 1; |
1534 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1535 | #endif |
|
|
1536 | |
|
|
1537 | #ifndef _WIN32 |
|
|
1538 | ev_ref (EV_A); /* child watcher */ |
|
|
1539 | ev_signal_stop (EV_A_ &childev); |
|
|
1540 | #endif |
|
|
1541 | |
|
|
1542 | loop_destroy (EV_A); |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | void |
|
|
1546 | ev_default_fork (void) |
|
|
1547 | { |
|
|
1548 | #if EV_MULTIPLICITY |
|
|
1549 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1550 | #endif |
|
|
1551 | |
|
|
1552 | if (backend) |
|
|
1553 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1554 | } |
2938 | } |
1555 | |
2939 | |
1556 | /*****************************************************************************/ |
2940 | /*****************************************************************************/ |
1557 | |
2941 | |
1558 | void |
2942 | void |
1559 | ev_invoke (EV_P_ void *w, int revents) |
2943 | ev_invoke (EV_P_ void *w, int revents) |
1560 | { |
2944 | { |
1561 | EV_CB_INVOKE ((W)w, revents); |
2945 | EV_CB_INVOKE ((W)w, revents); |
1562 | } |
2946 | } |
1563 | |
2947 | |
1564 | void inline_speed |
2948 | unsigned int |
1565 | call_pending (EV_P) |
2949 | ev_pending_count (EV_P) EV_THROW |
1566 | { |
2950 | { |
1567 | int pri; |
2951 | int pri; |
|
|
2952 | unsigned int count = 0; |
1568 | |
2953 | |
1569 | for (pri = NUMPRI; pri--; ) |
2954 | for (pri = NUMPRI; pri--; ) |
|
|
2955 | count += pendingcnt [pri]; |
|
|
2956 | |
|
|
2957 | return count; |
|
|
2958 | } |
|
|
2959 | |
|
|
2960 | void noinline |
|
|
2961 | ev_invoke_pending (EV_P) |
|
|
2962 | { |
|
|
2963 | pendingpri = NUMPRI; |
|
|
2964 | |
|
|
2965 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2966 | { |
|
|
2967 | --pendingpri; |
|
|
2968 | |
1570 | while (pendingcnt [pri]) |
2969 | while (pendingcnt [pendingpri]) |
1571 | { |
|
|
1572 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
|
|
1573 | |
|
|
1574 | if (expect_true (p->w)) |
|
|
1575 | { |
2970 | { |
1576 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2971 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1577 | |
2972 | |
1578 | p->w->pending = 0; |
2973 | p->w->pending = 0; |
1579 | EV_CB_INVOKE (p->w, p->events); |
2974 | EV_CB_INVOKE (p->w, p->events); |
|
|
2975 | EV_FREQUENT_CHECK; |
1580 | } |
2976 | } |
1581 | } |
2977 | } |
1582 | } |
2978 | } |
1583 | |
2979 | |
1584 | #if EV_IDLE_ENABLE |
2980 | #if EV_IDLE_ENABLE |
1585 | void inline_size |
2981 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2982 | /* only when higher priorities are idle" logic */ |
|
|
2983 | inline_size void |
1586 | idle_reify (EV_P) |
2984 | idle_reify (EV_P) |
1587 | { |
2985 | { |
1588 | if (expect_false (idleall)) |
2986 | if (expect_false (idleall)) |
1589 | { |
2987 | { |
1590 | int pri; |
2988 | int pri; |
… | |
… | |
1602 | } |
3000 | } |
1603 | } |
3001 | } |
1604 | } |
3002 | } |
1605 | #endif |
3003 | #endif |
1606 | |
3004 | |
1607 | void inline_size |
3005 | /* make timers pending */ |
|
|
3006 | inline_size void |
1608 | timers_reify (EV_P) |
3007 | timers_reify (EV_P) |
1609 | { |
3008 | { |
|
|
3009 | EV_FREQUENT_CHECK; |
|
|
3010 | |
1610 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
3011 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1611 | { |
3012 | { |
1612 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
3013 | do |
1613 | |
|
|
1614 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1615 | |
|
|
1616 | /* first reschedule or stop timer */ |
|
|
1617 | if (w->repeat) |
|
|
1618 | { |
3014 | { |
|
|
3015 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
3016 | |
|
|
3017 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
3018 | |
|
|
3019 | /* first reschedule or stop timer */ |
|
|
3020 | if (w->repeat) |
|
|
3021 | { |
1619 | ev_at (w) += w->repeat; |
3022 | ev_at (w) += w->repeat; |
1620 | if (ev_at (w) < mn_now) |
3023 | if (ev_at (w) < mn_now) |
1621 | ev_at (w) = mn_now; |
3024 | ev_at (w) = mn_now; |
1622 | |
3025 | |
1623 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3026 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1624 | |
3027 | |
1625 | ANHE_at_set (timers [HEAP0]); |
3028 | ANHE_at_cache (timers [HEAP0]); |
1626 | downheap (timers, timercnt, HEAP0); |
3029 | downheap (timers, timercnt, HEAP0); |
|
|
3030 | } |
|
|
3031 | else |
|
|
3032 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
3033 | |
|
|
3034 | EV_FREQUENT_CHECK; |
|
|
3035 | feed_reverse (EV_A_ (W)w); |
1627 | } |
3036 | } |
1628 | else |
3037 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1629 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1630 | |
3038 | |
1631 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
3039 | feed_reverse_done (EV_A_ EV_TIMER); |
1632 | } |
3040 | } |
1633 | } |
3041 | } |
1634 | |
3042 | |
1635 | #if EV_PERIODIC_ENABLE |
3043 | #if EV_PERIODIC_ENABLE |
1636 | void inline_size |
3044 | |
|
|
3045 | static void noinline |
|
|
3046 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3047 | { |
|
|
3048 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3049 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3050 | |
|
|
3051 | /* the above almost always errs on the low side */ |
|
|
3052 | while (at <= ev_rt_now) |
|
|
3053 | { |
|
|
3054 | ev_tstamp nat = at + w->interval; |
|
|
3055 | |
|
|
3056 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3057 | if (expect_false (nat == at)) |
|
|
3058 | { |
|
|
3059 | at = ev_rt_now; |
|
|
3060 | break; |
|
|
3061 | } |
|
|
3062 | |
|
|
3063 | at = nat; |
|
|
3064 | } |
|
|
3065 | |
|
|
3066 | ev_at (w) = at; |
|
|
3067 | } |
|
|
3068 | |
|
|
3069 | /* make periodics pending */ |
|
|
3070 | inline_size void |
1637 | periodics_reify (EV_P) |
3071 | periodics_reify (EV_P) |
1638 | { |
3072 | { |
|
|
3073 | EV_FREQUENT_CHECK; |
|
|
3074 | |
1639 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3075 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1640 | { |
3076 | { |
1641 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3077 | do |
1642 | |
|
|
1643 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1644 | |
|
|
1645 | /* first reschedule or stop timer */ |
|
|
1646 | if (w->reschedule_cb) |
|
|
1647 | { |
3078 | { |
|
|
3079 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
3080 | |
|
|
3081 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
3082 | |
|
|
3083 | /* first reschedule or stop timer */ |
|
|
3084 | if (w->reschedule_cb) |
|
|
3085 | { |
1648 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3086 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1649 | |
3087 | |
1650 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
3088 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1651 | |
3089 | |
1652 | ANHE_at_set (periodics [HEAP0]); |
3090 | ANHE_at_cache (periodics [HEAP0]); |
1653 | downheap (periodics, periodiccnt, HEAP0); |
3091 | downheap (periodics, periodiccnt, HEAP0); |
|
|
3092 | } |
|
|
3093 | else if (w->interval) |
|
|
3094 | { |
|
|
3095 | periodic_recalc (EV_A_ w); |
|
|
3096 | ANHE_at_cache (periodics [HEAP0]); |
|
|
3097 | downheap (periodics, periodiccnt, HEAP0); |
|
|
3098 | } |
|
|
3099 | else |
|
|
3100 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
3101 | |
|
|
3102 | EV_FREQUENT_CHECK; |
|
|
3103 | feed_reverse (EV_A_ (W)w); |
1654 | } |
3104 | } |
1655 | else if (w->interval) |
3105 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1656 | { |
|
|
1657 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1658 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1659 | /* this might happen because of floating point inexactness */ |
|
|
1660 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1661 | { |
|
|
1662 | ev_at (w) += w->interval; |
|
|
1663 | |
3106 | |
1664 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1665 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1666 | /* has effectively asked to get triggered more often than possible */ |
|
|
1667 | if (ev_at (w) < ev_rt_now) |
|
|
1668 | ev_at (w) = ev_rt_now; |
|
|
1669 | } |
|
|
1670 | |
|
|
1671 | ANHE_at_set (periodics [HEAP0]); |
|
|
1672 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1673 | } |
|
|
1674 | else |
|
|
1675 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1676 | |
|
|
1677 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
3107 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1678 | } |
3108 | } |
1679 | } |
3109 | } |
1680 | |
3110 | |
|
|
3111 | /* simply recalculate all periodics */ |
|
|
3112 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1681 | static void noinline |
3113 | static void noinline ecb_cold |
1682 | periodics_reschedule (EV_P) |
3114 | periodics_reschedule (EV_P) |
1683 | { |
3115 | { |
1684 | int i; |
3116 | int i; |
1685 | |
3117 | |
1686 | /* adjust periodics after time jump */ |
3118 | /* adjust periodics after time jump */ |
… | |
… | |
1689 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3121 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1690 | |
3122 | |
1691 | if (w->reschedule_cb) |
3123 | if (w->reschedule_cb) |
1692 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3124 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1693 | else if (w->interval) |
3125 | else if (w->interval) |
1694 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3126 | periodic_recalc (EV_A_ w); |
1695 | |
3127 | |
1696 | ANHE_at_set (periodics [i]); |
3128 | ANHE_at_cache (periodics [i]); |
1697 | } |
3129 | } |
1698 | |
3130 | |
1699 | /* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */ |
3131 | reheap (periodics, periodiccnt); |
1700 | /* also, this is easy and corretc for both 2-heaps and 4-heaps */ |
3132 | } |
|
|
3133 | #endif |
|
|
3134 | |
|
|
3135 | /* adjust all timers by a given offset */ |
|
|
3136 | static void noinline ecb_cold |
|
|
3137 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
3138 | { |
|
|
3139 | int i; |
|
|
3140 | |
1701 | for (i = 0; i < periodiccnt; ++i) |
3141 | for (i = 0; i < timercnt; ++i) |
1702 | upheap (periodics, i + HEAP0); |
3142 | { |
|
|
3143 | ANHE *he = timers + i + HEAP0; |
|
|
3144 | ANHE_w (*he)->at += adjust; |
|
|
3145 | ANHE_at_cache (*he); |
|
|
3146 | } |
1703 | } |
3147 | } |
1704 | #endif |
|
|
1705 | |
3148 | |
1706 | void inline_speed |
3149 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
3150 | /* also detect if there was a timejump, and act accordingly */ |
|
|
3151 | inline_speed void |
1707 | time_update (EV_P_ ev_tstamp max_block) |
3152 | time_update (EV_P_ ev_tstamp max_block) |
1708 | { |
3153 | { |
1709 | int i; |
|
|
1710 | |
|
|
1711 | #if EV_USE_MONOTONIC |
3154 | #if EV_USE_MONOTONIC |
1712 | if (expect_true (have_monotonic)) |
3155 | if (expect_true (have_monotonic)) |
1713 | { |
3156 | { |
|
|
3157 | int i; |
1714 | ev_tstamp odiff = rtmn_diff; |
3158 | ev_tstamp odiff = rtmn_diff; |
1715 | |
3159 | |
1716 | mn_now = get_clock (); |
3160 | mn_now = get_clock (); |
1717 | |
3161 | |
1718 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3162 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1734 | * doesn't hurt either as we only do this on time-jumps or |
3178 | * doesn't hurt either as we only do this on time-jumps or |
1735 | * in the unlikely event of having been preempted here. |
3179 | * in the unlikely event of having been preempted here. |
1736 | */ |
3180 | */ |
1737 | for (i = 4; --i; ) |
3181 | for (i = 4; --i; ) |
1738 | { |
3182 | { |
|
|
3183 | ev_tstamp diff; |
1739 | rtmn_diff = ev_rt_now - mn_now; |
3184 | rtmn_diff = ev_rt_now - mn_now; |
1740 | |
3185 | |
|
|
3186 | diff = odiff - rtmn_diff; |
|
|
3187 | |
1741 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3188 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1742 | return; /* all is well */ |
3189 | return; /* all is well */ |
1743 | |
3190 | |
1744 | ev_rt_now = ev_time (); |
3191 | ev_rt_now = ev_time (); |
1745 | mn_now = get_clock (); |
3192 | mn_now = get_clock (); |
1746 | now_floor = mn_now; |
3193 | now_floor = mn_now; |
1747 | } |
3194 | } |
1748 | |
3195 | |
|
|
3196 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
3197 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1749 | # if EV_PERIODIC_ENABLE |
3198 | # if EV_PERIODIC_ENABLE |
1750 | periodics_reschedule (EV_A); |
3199 | periodics_reschedule (EV_A); |
1751 | # endif |
3200 | # endif |
1752 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1753 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1754 | } |
3201 | } |
1755 | else |
3202 | else |
1756 | #endif |
3203 | #endif |
1757 | { |
3204 | { |
1758 | ev_rt_now = ev_time (); |
3205 | ev_rt_now = ev_time (); |
1759 | |
3206 | |
1760 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3207 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1761 | { |
3208 | { |
|
|
3209 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
3210 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1762 | #if EV_PERIODIC_ENABLE |
3211 | #if EV_PERIODIC_ENABLE |
1763 | periodics_reschedule (EV_A); |
3212 | periodics_reschedule (EV_A); |
1764 | #endif |
3213 | #endif |
1765 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1766 | for (i = 0; i < timercnt; ++i) |
|
|
1767 | { |
|
|
1768 | ANHE *he = timers + i + HEAP0; |
|
|
1769 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1770 | ANHE_at_set (*he); |
|
|
1771 | } |
|
|
1772 | } |
3214 | } |
1773 | |
3215 | |
1774 | mn_now = ev_rt_now; |
3216 | mn_now = ev_rt_now; |
1775 | } |
3217 | } |
1776 | } |
3218 | } |
1777 | |
3219 | |
1778 | void |
3220 | int |
1779 | ev_ref (EV_P) |
|
|
1780 | { |
|
|
1781 | ++activecnt; |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | void |
|
|
1785 | ev_unref (EV_P) |
|
|
1786 | { |
|
|
1787 | --activecnt; |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | static int loop_done; |
|
|
1791 | |
|
|
1792 | void |
|
|
1793 | ev_loop (EV_P_ int flags) |
3221 | ev_run (EV_P_ int flags) |
1794 | { |
3222 | { |
|
|
3223 | #if EV_FEATURE_API |
|
|
3224 | ++loop_depth; |
|
|
3225 | #endif |
|
|
3226 | |
|
|
3227 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3228 | |
1795 | loop_done = EVUNLOOP_CANCEL; |
3229 | loop_done = EVBREAK_CANCEL; |
1796 | |
3230 | |
1797 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
3231 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1798 | |
3232 | |
1799 | do |
3233 | do |
1800 | { |
3234 | { |
|
|
3235 | #if EV_VERIFY >= 2 |
|
|
3236 | ev_verify (EV_A); |
|
|
3237 | #endif |
|
|
3238 | |
1801 | #ifndef _WIN32 |
3239 | #ifndef _WIN32 |
1802 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3240 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1803 | if (expect_false (getpid () != curpid)) |
3241 | if (expect_false (getpid () != curpid)) |
1804 | { |
3242 | { |
1805 | curpid = getpid (); |
3243 | curpid = getpid (); |
… | |
… | |
1811 | /* we might have forked, so queue fork handlers */ |
3249 | /* we might have forked, so queue fork handlers */ |
1812 | if (expect_false (postfork)) |
3250 | if (expect_false (postfork)) |
1813 | if (forkcnt) |
3251 | if (forkcnt) |
1814 | { |
3252 | { |
1815 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3253 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1816 | call_pending (EV_A); |
3254 | EV_INVOKE_PENDING; |
1817 | } |
3255 | } |
1818 | #endif |
3256 | #endif |
1819 | |
3257 | |
|
|
3258 | #if EV_PREPARE_ENABLE |
1820 | /* queue prepare watchers (and execute them) */ |
3259 | /* queue prepare watchers (and execute them) */ |
1821 | if (expect_false (preparecnt)) |
3260 | if (expect_false (preparecnt)) |
1822 | { |
3261 | { |
1823 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3262 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1824 | call_pending (EV_A); |
3263 | EV_INVOKE_PENDING; |
1825 | } |
3264 | } |
|
|
3265 | #endif |
1826 | |
3266 | |
1827 | if (expect_false (!activecnt)) |
3267 | if (expect_false (loop_done)) |
1828 | break; |
3268 | break; |
1829 | |
3269 | |
1830 | /* we might have forked, so reify kernel state if necessary */ |
3270 | /* we might have forked, so reify kernel state if necessary */ |
1831 | if (expect_false (postfork)) |
3271 | if (expect_false (postfork)) |
1832 | loop_fork (EV_A); |
3272 | loop_fork (EV_A); |
… | |
… | |
1837 | /* calculate blocking time */ |
3277 | /* calculate blocking time */ |
1838 | { |
3278 | { |
1839 | ev_tstamp waittime = 0.; |
3279 | ev_tstamp waittime = 0.; |
1840 | ev_tstamp sleeptime = 0.; |
3280 | ev_tstamp sleeptime = 0.; |
1841 | |
3281 | |
|
|
3282 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3283 | ev_tstamp prev_mn_now = mn_now; |
|
|
3284 | |
|
|
3285 | /* update time to cancel out callback processing overhead */ |
|
|
3286 | time_update (EV_A_ 1e100); |
|
|
3287 | |
|
|
3288 | /* from now on, we want a pipe-wake-up */ |
|
|
3289 | pipe_write_wanted = 1; |
|
|
3290 | |
|
|
3291 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3292 | |
1842 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3293 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1843 | { |
3294 | { |
1844 | /* update time to cancel out callback processing overhead */ |
|
|
1845 | time_update (EV_A_ 1e100); |
|
|
1846 | |
|
|
1847 | waittime = MAX_BLOCKTIME; |
3295 | waittime = MAX_BLOCKTIME; |
1848 | |
3296 | |
1849 | if (timercnt) |
3297 | if (timercnt) |
1850 | { |
3298 | { |
1851 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3299 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1852 | if (waittime > to) waittime = to; |
3300 | if (waittime > to) waittime = to; |
1853 | } |
3301 | } |
1854 | |
3302 | |
1855 | #if EV_PERIODIC_ENABLE |
3303 | #if EV_PERIODIC_ENABLE |
1856 | if (periodiccnt) |
3304 | if (periodiccnt) |
1857 | { |
3305 | { |
1858 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3306 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1859 | if (waittime > to) waittime = to; |
3307 | if (waittime > to) waittime = to; |
1860 | } |
3308 | } |
1861 | #endif |
3309 | #endif |
1862 | |
3310 | |
|
|
3311 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1863 | if (expect_false (waittime < timeout_blocktime)) |
3312 | if (expect_false (waittime < timeout_blocktime)) |
1864 | waittime = timeout_blocktime; |
3313 | waittime = timeout_blocktime; |
1865 | |
3314 | |
1866 | sleeptime = waittime - backend_fudge; |
3315 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3316 | /* to pass a minimum nonzero value to the backend */ |
|
|
3317 | if (expect_false (waittime < backend_mintime)) |
|
|
3318 | waittime = backend_mintime; |
1867 | |
3319 | |
|
|
3320 | /* extra check because io_blocktime is commonly 0 */ |
1868 | if (expect_true (sleeptime > io_blocktime)) |
3321 | if (expect_false (io_blocktime)) |
1869 | sleeptime = io_blocktime; |
|
|
1870 | |
|
|
1871 | if (sleeptime) |
|
|
1872 | { |
3322 | { |
|
|
3323 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3324 | |
|
|
3325 | if (sleeptime > waittime - backend_mintime) |
|
|
3326 | sleeptime = waittime - backend_mintime; |
|
|
3327 | |
|
|
3328 | if (expect_true (sleeptime > 0.)) |
|
|
3329 | { |
1873 | ev_sleep (sleeptime); |
3330 | ev_sleep (sleeptime); |
1874 | waittime -= sleeptime; |
3331 | waittime -= sleeptime; |
|
|
3332 | } |
1875 | } |
3333 | } |
1876 | } |
3334 | } |
1877 | |
3335 | |
|
|
3336 | #if EV_FEATURE_API |
1878 | ++loop_count; |
3337 | ++loop_count; |
|
|
3338 | #endif |
|
|
3339 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1879 | backend_poll (EV_A_ waittime); |
3340 | backend_poll (EV_A_ waittime); |
|
|
3341 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3342 | |
|
|
3343 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3344 | |
|
|
3345 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3346 | if (pipe_write_skipped) |
|
|
3347 | { |
|
|
3348 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3349 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3350 | } |
|
|
3351 | |
1880 | |
3352 | |
1881 | /* update ev_rt_now, do magic */ |
3353 | /* update ev_rt_now, do magic */ |
1882 | time_update (EV_A_ waittime + sleeptime); |
3354 | time_update (EV_A_ waittime + sleeptime); |
1883 | } |
3355 | } |
1884 | |
3356 | |
… | |
… | |
1891 | #if EV_IDLE_ENABLE |
3363 | #if EV_IDLE_ENABLE |
1892 | /* queue idle watchers unless other events are pending */ |
3364 | /* queue idle watchers unless other events are pending */ |
1893 | idle_reify (EV_A); |
3365 | idle_reify (EV_A); |
1894 | #endif |
3366 | #endif |
1895 | |
3367 | |
|
|
3368 | #if EV_CHECK_ENABLE |
1896 | /* queue check watchers, to be executed first */ |
3369 | /* queue check watchers, to be executed first */ |
1897 | if (expect_false (checkcnt)) |
3370 | if (expect_false (checkcnt)) |
1898 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3371 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3372 | #endif |
1899 | |
3373 | |
1900 | call_pending (EV_A); |
3374 | EV_INVOKE_PENDING; |
1901 | } |
3375 | } |
1902 | while (expect_true ( |
3376 | while (expect_true ( |
1903 | activecnt |
3377 | activecnt |
1904 | && !loop_done |
3378 | && !loop_done |
1905 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3379 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
1906 | )); |
3380 | )); |
1907 | |
3381 | |
1908 | if (loop_done == EVUNLOOP_ONE) |
3382 | if (loop_done == EVBREAK_ONE) |
1909 | loop_done = EVUNLOOP_CANCEL; |
3383 | loop_done = EVBREAK_CANCEL; |
|
|
3384 | |
|
|
3385 | #if EV_FEATURE_API |
|
|
3386 | --loop_depth; |
|
|
3387 | #endif |
|
|
3388 | |
|
|
3389 | return activecnt; |
1910 | } |
3390 | } |
1911 | |
3391 | |
1912 | void |
3392 | void |
1913 | ev_unloop (EV_P_ int how) |
3393 | ev_break (EV_P_ int how) EV_THROW |
1914 | { |
3394 | { |
1915 | loop_done = how; |
3395 | loop_done = how; |
1916 | } |
3396 | } |
1917 | |
3397 | |
|
|
3398 | void |
|
|
3399 | ev_ref (EV_P) EV_THROW |
|
|
3400 | { |
|
|
3401 | ++activecnt; |
|
|
3402 | } |
|
|
3403 | |
|
|
3404 | void |
|
|
3405 | ev_unref (EV_P) EV_THROW |
|
|
3406 | { |
|
|
3407 | --activecnt; |
|
|
3408 | } |
|
|
3409 | |
|
|
3410 | void |
|
|
3411 | ev_now_update (EV_P) EV_THROW |
|
|
3412 | { |
|
|
3413 | time_update (EV_A_ 1e100); |
|
|
3414 | } |
|
|
3415 | |
|
|
3416 | void |
|
|
3417 | ev_suspend (EV_P) EV_THROW |
|
|
3418 | { |
|
|
3419 | ev_now_update (EV_A); |
|
|
3420 | } |
|
|
3421 | |
|
|
3422 | void |
|
|
3423 | ev_resume (EV_P) EV_THROW |
|
|
3424 | { |
|
|
3425 | ev_tstamp mn_prev = mn_now; |
|
|
3426 | |
|
|
3427 | ev_now_update (EV_A); |
|
|
3428 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3429 | #if EV_PERIODIC_ENABLE |
|
|
3430 | /* TODO: really do this? */ |
|
|
3431 | periodics_reschedule (EV_A); |
|
|
3432 | #endif |
|
|
3433 | } |
|
|
3434 | |
1918 | /*****************************************************************************/ |
3435 | /*****************************************************************************/ |
|
|
3436 | /* singly-linked list management, used when the expected list length is short */ |
1919 | |
3437 | |
1920 | void inline_size |
3438 | inline_size void |
1921 | wlist_add (WL *head, WL elem) |
3439 | wlist_add (WL *head, WL elem) |
1922 | { |
3440 | { |
1923 | elem->next = *head; |
3441 | elem->next = *head; |
1924 | *head = elem; |
3442 | *head = elem; |
1925 | } |
3443 | } |
1926 | |
3444 | |
1927 | void inline_size |
3445 | inline_size void |
1928 | wlist_del (WL *head, WL elem) |
3446 | wlist_del (WL *head, WL elem) |
1929 | { |
3447 | { |
1930 | while (*head) |
3448 | while (*head) |
1931 | { |
3449 | { |
1932 | if (*head == elem) |
3450 | if (expect_true (*head == elem)) |
1933 | { |
3451 | { |
1934 | *head = elem->next; |
3452 | *head = elem->next; |
1935 | return; |
3453 | break; |
1936 | } |
3454 | } |
1937 | |
3455 | |
1938 | head = &(*head)->next; |
3456 | head = &(*head)->next; |
1939 | } |
3457 | } |
1940 | } |
3458 | } |
1941 | |
3459 | |
1942 | void inline_speed |
3460 | /* internal, faster, version of ev_clear_pending */ |
|
|
3461 | inline_speed void |
1943 | clear_pending (EV_P_ W w) |
3462 | clear_pending (EV_P_ W w) |
1944 | { |
3463 | { |
1945 | if (w->pending) |
3464 | if (w->pending) |
1946 | { |
3465 | { |
1947 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3466 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1948 | w->pending = 0; |
3467 | w->pending = 0; |
1949 | } |
3468 | } |
1950 | } |
3469 | } |
1951 | |
3470 | |
1952 | int |
3471 | int |
1953 | ev_clear_pending (EV_P_ void *w) |
3472 | ev_clear_pending (EV_P_ void *w) EV_THROW |
1954 | { |
3473 | { |
1955 | W w_ = (W)w; |
3474 | W w_ = (W)w; |
1956 | int pending = w_->pending; |
3475 | int pending = w_->pending; |
1957 | |
3476 | |
1958 | if (expect_true (pending)) |
3477 | if (expect_true (pending)) |
1959 | { |
3478 | { |
1960 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3479 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3480 | p->w = (W)&pending_w; |
1961 | w_->pending = 0; |
3481 | w_->pending = 0; |
1962 | p->w = 0; |
|
|
1963 | return p->events; |
3482 | return p->events; |
1964 | } |
3483 | } |
1965 | else |
3484 | else |
1966 | return 0; |
3485 | return 0; |
1967 | } |
3486 | } |
1968 | |
3487 | |
1969 | void inline_size |
3488 | inline_size void |
1970 | pri_adjust (EV_P_ W w) |
3489 | pri_adjust (EV_P_ W w) |
1971 | { |
3490 | { |
1972 | int pri = w->priority; |
3491 | int pri = ev_priority (w); |
1973 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3492 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1974 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3493 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1975 | w->priority = pri; |
3494 | ev_set_priority (w, pri); |
1976 | } |
3495 | } |
1977 | |
3496 | |
1978 | void inline_speed |
3497 | inline_speed void |
1979 | ev_start (EV_P_ W w, int active) |
3498 | ev_start (EV_P_ W w, int active) |
1980 | { |
3499 | { |
1981 | pri_adjust (EV_A_ w); |
3500 | pri_adjust (EV_A_ w); |
1982 | w->active = active; |
3501 | w->active = active; |
1983 | ev_ref (EV_A); |
3502 | ev_ref (EV_A); |
1984 | } |
3503 | } |
1985 | |
3504 | |
1986 | void inline_size |
3505 | inline_size void |
1987 | ev_stop (EV_P_ W w) |
3506 | ev_stop (EV_P_ W w) |
1988 | { |
3507 | { |
1989 | ev_unref (EV_A); |
3508 | ev_unref (EV_A); |
1990 | w->active = 0; |
3509 | w->active = 0; |
1991 | } |
3510 | } |
1992 | |
3511 | |
1993 | /*****************************************************************************/ |
3512 | /*****************************************************************************/ |
1994 | |
3513 | |
1995 | void noinline |
3514 | void noinline |
1996 | ev_io_start (EV_P_ ev_io *w) |
3515 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
1997 | { |
3516 | { |
1998 | int fd = w->fd; |
3517 | int fd = w->fd; |
1999 | |
3518 | |
2000 | if (expect_false (ev_is_active (w))) |
3519 | if (expect_false (ev_is_active (w))) |
2001 | return; |
3520 | return; |
2002 | |
3521 | |
2003 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3522 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
3523 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
3524 | |
|
|
3525 | EV_FREQUENT_CHECK; |
2004 | |
3526 | |
2005 | ev_start (EV_A_ (W)w, 1); |
3527 | ev_start (EV_A_ (W)w, 1); |
2006 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
3528 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2007 | wlist_add (&anfds[fd].head, (WL)w); |
3529 | wlist_add (&anfds[fd].head, (WL)w); |
2008 | |
3530 | |
|
|
3531 | /* common bug, apparently */ |
|
|
3532 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3533 | |
2009 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
3534 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2010 | w->events &= ~EV_IOFDSET; |
3535 | w->events &= ~EV__IOFDSET; |
|
|
3536 | |
|
|
3537 | EV_FREQUENT_CHECK; |
2011 | } |
3538 | } |
2012 | |
3539 | |
2013 | void noinline |
3540 | void noinline |
2014 | ev_io_stop (EV_P_ ev_io *w) |
3541 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2015 | { |
3542 | { |
2016 | clear_pending (EV_A_ (W)w); |
3543 | clear_pending (EV_A_ (W)w); |
2017 | if (expect_false (!ev_is_active (w))) |
3544 | if (expect_false (!ev_is_active (w))) |
2018 | return; |
3545 | return; |
2019 | |
3546 | |
2020 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3547 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
3548 | |
|
|
3549 | EV_FREQUENT_CHECK; |
2021 | |
3550 | |
2022 | wlist_del (&anfds[w->fd].head, (WL)w); |
3551 | wlist_del (&anfds[w->fd].head, (WL)w); |
2023 | ev_stop (EV_A_ (W)w); |
3552 | ev_stop (EV_A_ (W)w); |
2024 | |
3553 | |
2025 | fd_change (EV_A_ w->fd, 1); |
3554 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
3555 | |
|
|
3556 | EV_FREQUENT_CHECK; |
2026 | } |
3557 | } |
2027 | |
3558 | |
2028 | void noinline |
3559 | void noinline |
2029 | ev_timer_start (EV_P_ ev_timer *w) |
3560 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2030 | { |
3561 | { |
2031 | if (expect_false (ev_is_active (w))) |
3562 | if (expect_false (ev_is_active (w))) |
2032 | return; |
3563 | return; |
2033 | |
3564 | |
2034 | ev_at (w) += mn_now; |
3565 | ev_at (w) += mn_now; |
2035 | |
3566 | |
2036 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3567 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2037 | |
3568 | |
|
|
3569 | EV_FREQUENT_CHECK; |
|
|
3570 | |
|
|
3571 | ++timercnt; |
2038 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
3572 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2039 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
3573 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
2040 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3574 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2041 | ANHE_at_set (timers [ev_active (w)]); |
3575 | ANHE_at_cache (timers [ev_active (w)]); |
2042 | upheap (timers, ev_active (w)); |
3576 | upheap (timers, ev_active (w)); |
2043 | |
3577 | |
|
|
3578 | EV_FREQUENT_CHECK; |
|
|
3579 | |
2044 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3580 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2045 | } |
3581 | } |
2046 | |
3582 | |
2047 | void noinline |
3583 | void noinline |
2048 | ev_timer_stop (EV_P_ ev_timer *w) |
3584 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2049 | { |
3585 | { |
2050 | clear_pending (EV_A_ (W)w); |
3586 | clear_pending (EV_A_ (W)w); |
2051 | if (expect_false (!ev_is_active (w))) |
3587 | if (expect_false (!ev_is_active (w))) |
2052 | return; |
3588 | return; |
2053 | |
3589 | |
|
|
3590 | EV_FREQUENT_CHECK; |
|
|
3591 | |
2054 | { |
3592 | { |
2055 | int active = ev_active (w); |
3593 | int active = ev_active (w); |
2056 | |
3594 | |
2057 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3595 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2058 | |
3596 | |
|
|
3597 | --timercnt; |
|
|
3598 | |
2059 | if (expect_true (active < timercnt + HEAP0 - 1)) |
3599 | if (expect_true (active < timercnt + HEAP0)) |
2060 | { |
3600 | { |
2061 | timers [active] = timers [timercnt + HEAP0 - 1]; |
3601 | timers [active] = timers [timercnt + HEAP0]; |
2062 | adjustheap (timers, timercnt, active); |
3602 | adjustheap (timers, timercnt, active); |
2063 | } |
3603 | } |
2064 | |
|
|
2065 | --timercnt; |
|
|
2066 | } |
3604 | } |
2067 | |
3605 | |
2068 | ev_at (w) -= mn_now; |
3606 | ev_at (w) -= mn_now; |
2069 | |
3607 | |
2070 | ev_stop (EV_A_ (W)w); |
3608 | ev_stop (EV_A_ (W)w); |
|
|
3609 | |
|
|
3610 | EV_FREQUENT_CHECK; |
2071 | } |
3611 | } |
2072 | |
3612 | |
2073 | void noinline |
3613 | void noinline |
2074 | ev_timer_again (EV_P_ ev_timer *w) |
3614 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2075 | { |
3615 | { |
|
|
3616 | EV_FREQUENT_CHECK; |
|
|
3617 | |
|
|
3618 | clear_pending (EV_A_ (W)w); |
|
|
3619 | |
2076 | if (ev_is_active (w)) |
3620 | if (ev_is_active (w)) |
2077 | { |
3621 | { |
2078 | if (w->repeat) |
3622 | if (w->repeat) |
2079 | { |
3623 | { |
2080 | ev_at (w) = mn_now + w->repeat; |
3624 | ev_at (w) = mn_now + w->repeat; |
2081 | ANHE_at_set (timers [ev_active (w)]); |
3625 | ANHE_at_cache (timers [ev_active (w)]); |
2082 | adjustheap (timers, timercnt, ev_active (w)); |
3626 | adjustheap (timers, timercnt, ev_active (w)); |
2083 | } |
3627 | } |
2084 | else |
3628 | else |
2085 | ev_timer_stop (EV_A_ w); |
3629 | ev_timer_stop (EV_A_ w); |
2086 | } |
3630 | } |
2087 | else if (w->repeat) |
3631 | else if (w->repeat) |
2088 | { |
3632 | { |
2089 | ev_at (w) = w->repeat; |
3633 | ev_at (w) = w->repeat; |
2090 | ev_timer_start (EV_A_ w); |
3634 | ev_timer_start (EV_A_ w); |
2091 | } |
3635 | } |
|
|
3636 | |
|
|
3637 | EV_FREQUENT_CHECK; |
|
|
3638 | } |
|
|
3639 | |
|
|
3640 | ev_tstamp |
|
|
3641 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
|
|
3642 | { |
|
|
3643 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2092 | } |
3644 | } |
2093 | |
3645 | |
2094 | #if EV_PERIODIC_ENABLE |
3646 | #if EV_PERIODIC_ENABLE |
2095 | void noinline |
3647 | void noinline |
2096 | ev_periodic_start (EV_P_ ev_periodic *w) |
3648 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2097 | { |
3649 | { |
2098 | if (expect_false (ev_is_active (w))) |
3650 | if (expect_false (ev_is_active (w))) |
2099 | return; |
3651 | return; |
2100 | |
3652 | |
2101 | if (w->reschedule_cb) |
3653 | if (w->reschedule_cb) |
2102 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3654 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2103 | else if (w->interval) |
3655 | else if (w->interval) |
2104 | { |
3656 | { |
2105 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3657 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2106 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3658 | periodic_recalc (EV_A_ w); |
2107 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2108 | } |
3659 | } |
2109 | else |
3660 | else |
2110 | ev_at (w) = w->offset; |
3661 | ev_at (w) = w->offset; |
2111 | |
3662 | |
|
|
3663 | EV_FREQUENT_CHECK; |
|
|
3664 | |
|
|
3665 | ++periodiccnt; |
2112 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
3666 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2113 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
3667 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2114 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3668 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2115 | ANHE_at_set (periodics [ev_active (w)]); |
3669 | ANHE_at_cache (periodics [ev_active (w)]); |
2116 | upheap (periodics, ev_active (w)); |
3670 | upheap (periodics, ev_active (w)); |
2117 | |
3671 | |
|
|
3672 | EV_FREQUENT_CHECK; |
|
|
3673 | |
2118 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3674 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2119 | } |
3675 | } |
2120 | |
3676 | |
2121 | void noinline |
3677 | void noinline |
2122 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3678 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2123 | { |
3679 | { |
2124 | clear_pending (EV_A_ (W)w); |
3680 | clear_pending (EV_A_ (W)w); |
2125 | if (expect_false (!ev_is_active (w))) |
3681 | if (expect_false (!ev_is_active (w))) |
2126 | return; |
3682 | return; |
2127 | |
3683 | |
|
|
3684 | EV_FREQUENT_CHECK; |
|
|
3685 | |
2128 | { |
3686 | { |
2129 | int active = ev_active (w); |
3687 | int active = ev_active (w); |
2130 | |
3688 | |
2131 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3689 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2132 | |
3690 | |
|
|
3691 | --periodiccnt; |
|
|
3692 | |
2133 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
3693 | if (expect_true (active < periodiccnt + HEAP0)) |
2134 | { |
3694 | { |
2135 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
3695 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2136 | adjustheap (periodics, periodiccnt, active); |
3696 | adjustheap (periodics, periodiccnt, active); |
2137 | } |
3697 | } |
2138 | |
|
|
2139 | --periodiccnt; |
|
|
2140 | } |
3698 | } |
2141 | |
3699 | |
2142 | ev_stop (EV_A_ (W)w); |
3700 | ev_stop (EV_A_ (W)w); |
|
|
3701 | |
|
|
3702 | EV_FREQUENT_CHECK; |
2143 | } |
3703 | } |
2144 | |
3704 | |
2145 | void noinline |
3705 | void noinline |
2146 | ev_periodic_again (EV_P_ ev_periodic *w) |
3706 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2147 | { |
3707 | { |
2148 | /* TODO: use adjustheap and recalculation */ |
3708 | /* TODO: use adjustheap and recalculation */ |
2149 | ev_periodic_stop (EV_A_ w); |
3709 | ev_periodic_stop (EV_A_ w); |
2150 | ev_periodic_start (EV_A_ w); |
3710 | ev_periodic_start (EV_A_ w); |
2151 | } |
3711 | } |
… | |
… | |
2153 | |
3713 | |
2154 | #ifndef SA_RESTART |
3714 | #ifndef SA_RESTART |
2155 | # define SA_RESTART 0 |
3715 | # define SA_RESTART 0 |
2156 | #endif |
3716 | #endif |
2157 | |
3717 | |
|
|
3718 | #if EV_SIGNAL_ENABLE |
|
|
3719 | |
2158 | void noinline |
3720 | void noinline |
2159 | ev_signal_start (EV_P_ ev_signal *w) |
3721 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2160 | { |
3722 | { |
2161 | #if EV_MULTIPLICITY |
|
|
2162 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2163 | #endif |
|
|
2164 | if (expect_false (ev_is_active (w))) |
3723 | if (expect_false (ev_is_active (w))) |
2165 | return; |
3724 | return; |
2166 | |
3725 | |
2167 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3726 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2168 | |
3727 | |
2169 | evpipe_init (EV_A); |
3728 | #if EV_MULTIPLICITY |
|
|
3729 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3730 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2170 | |
3731 | |
|
|
3732 | signals [w->signum - 1].loop = EV_A; |
|
|
3733 | ECB_MEMORY_FENCE_RELEASE; |
|
|
3734 | #endif |
|
|
3735 | |
|
|
3736 | EV_FREQUENT_CHECK; |
|
|
3737 | |
|
|
3738 | #if EV_USE_SIGNALFD |
|
|
3739 | if (sigfd == -2) |
2171 | { |
3740 | { |
2172 | #ifndef _WIN32 |
3741 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2173 | sigset_t full, prev; |
3742 | if (sigfd < 0 && errno == EINVAL) |
2174 | sigfillset (&full); |
3743 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2175 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2176 | #endif |
|
|
2177 | |
3744 | |
2178 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
3745 | if (sigfd >= 0) |
|
|
3746 | { |
|
|
3747 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2179 | |
3748 | |
2180 | #ifndef _WIN32 |
3749 | sigemptyset (&sigfd_set); |
2181 | sigprocmask (SIG_SETMASK, &prev, 0); |
3750 | |
2182 | #endif |
3751 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3752 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3753 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3754 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3755 | } |
2183 | } |
3756 | } |
|
|
3757 | |
|
|
3758 | if (sigfd >= 0) |
|
|
3759 | { |
|
|
3760 | /* TODO: check .head */ |
|
|
3761 | sigaddset (&sigfd_set, w->signum); |
|
|
3762 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3763 | |
|
|
3764 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3765 | } |
|
|
3766 | #endif |
2184 | |
3767 | |
2185 | ev_start (EV_A_ (W)w, 1); |
3768 | ev_start (EV_A_ (W)w, 1); |
2186 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3769 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2187 | |
3770 | |
2188 | if (!((WL)w)->next) |
3771 | if (!((WL)w)->next) |
|
|
3772 | # if EV_USE_SIGNALFD |
|
|
3773 | if (sigfd < 0) /*TODO*/ |
|
|
3774 | # endif |
2189 | { |
3775 | { |
2190 | #if _WIN32 |
3776 | # ifdef _WIN32 |
|
|
3777 | evpipe_init (EV_A); |
|
|
3778 | |
2191 | signal (w->signum, ev_sighandler); |
3779 | signal (w->signum, ev_sighandler); |
2192 | #else |
3780 | # else |
2193 | struct sigaction sa; |
3781 | struct sigaction sa; |
|
|
3782 | |
|
|
3783 | evpipe_init (EV_A); |
|
|
3784 | |
2194 | sa.sa_handler = ev_sighandler; |
3785 | sa.sa_handler = ev_sighandler; |
2195 | sigfillset (&sa.sa_mask); |
3786 | sigfillset (&sa.sa_mask); |
2196 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3787 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2197 | sigaction (w->signum, &sa, 0); |
3788 | sigaction (w->signum, &sa, 0); |
|
|
3789 | |
|
|
3790 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3791 | { |
|
|
3792 | sigemptyset (&sa.sa_mask); |
|
|
3793 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3794 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3795 | } |
2198 | #endif |
3796 | #endif |
2199 | } |
3797 | } |
|
|
3798 | |
|
|
3799 | EV_FREQUENT_CHECK; |
2200 | } |
3800 | } |
2201 | |
3801 | |
2202 | void noinline |
3802 | void noinline |
2203 | ev_signal_stop (EV_P_ ev_signal *w) |
3803 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2204 | { |
3804 | { |
2205 | clear_pending (EV_A_ (W)w); |
3805 | clear_pending (EV_A_ (W)w); |
2206 | if (expect_false (!ev_is_active (w))) |
3806 | if (expect_false (!ev_is_active (w))) |
2207 | return; |
3807 | return; |
2208 | |
3808 | |
|
|
3809 | EV_FREQUENT_CHECK; |
|
|
3810 | |
2209 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3811 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2210 | ev_stop (EV_A_ (W)w); |
3812 | ev_stop (EV_A_ (W)w); |
2211 | |
3813 | |
2212 | if (!signals [w->signum - 1].head) |
3814 | if (!signals [w->signum - 1].head) |
|
|
3815 | { |
|
|
3816 | #if EV_MULTIPLICITY |
|
|
3817 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3818 | #endif |
|
|
3819 | #if EV_USE_SIGNALFD |
|
|
3820 | if (sigfd >= 0) |
|
|
3821 | { |
|
|
3822 | sigset_t ss; |
|
|
3823 | |
|
|
3824 | sigemptyset (&ss); |
|
|
3825 | sigaddset (&ss, w->signum); |
|
|
3826 | sigdelset (&sigfd_set, w->signum); |
|
|
3827 | |
|
|
3828 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3829 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3830 | } |
|
|
3831 | else |
|
|
3832 | #endif |
2213 | signal (w->signum, SIG_DFL); |
3833 | signal (w->signum, SIG_DFL); |
|
|
3834 | } |
|
|
3835 | |
|
|
3836 | EV_FREQUENT_CHECK; |
2214 | } |
3837 | } |
|
|
3838 | |
|
|
3839 | #endif |
|
|
3840 | |
|
|
3841 | #if EV_CHILD_ENABLE |
2215 | |
3842 | |
2216 | void |
3843 | void |
2217 | ev_child_start (EV_P_ ev_child *w) |
3844 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2218 | { |
3845 | { |
2219 | #if EV_MULTIPLICITY |
3846 | #if EV_MULTIPLICITY |
2220 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3847 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2221 | #endif |
3848 | #endif |
2222 | if (expect_false (ev_is_active (w))) |
3849 | if (expect_false (ev_is_active (w))) |
2223 | return; |
3850 | return; |
2224 | |
3851 | |
|
|
3852 | EV_FREQUENT_CHECK; |
|
|
3853 | |
2225 | ev_start (EV_A_ (W)w, 1); |
3854 | ev_start (EV_A_ (W)w, 1); |
2226 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3855 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3856 | |
|
|
3857 | EV_FREQUENT_CHECK; |
2227 | } |
3858 | } |
2228 | |
3859 | |
2229 | void |
3860 | void |
2230 | ev_child_stop (EV_P_ ev_child *w) |
3861 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2231 | { |
3862 | { |
2232 | clear_pending (EV_A_ (W)w); |
3863 | clear_pending (EV_A_ (W)w); |
2233 | if (expect_false (!ev_is_active (w))) |
3864 | if (expect_false (!ev_is_active (w))) |
2234 | return; |
3865 | return; |
2235 | |
3866 | |
|
|
3867 | EV_FREQUENT_CHECK; |
|
|
3868 | |
2236 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3869 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2237 | ev_stop (EV_A_ (W)w); |
3870 | ev_stop (EV_A_ (W)w); |
|
|
3871 | |
|
|
3872 | EV_FREQUENT_CHECK; |
2238 | } |
3873 | } |
|
|
3874 | |
|
|
3875 | #endif |
2239 | |
3876 | |
2240 | #if EV_STAT_ENABLE |
3877 | #if EV_STAT_ENABLE |
2241 | |
3878 | |
2242 | # ifdef _WIN32 |
3879 | # ifdef _WIN32 |
2243 | # undef lstat |
3880 | # undef lstat |
2244 | # define lstat(a,b) _stati64 (a,b) |
3881 | # define lstat(a,b) _stati64 (a,b) |
2245 | # endif |
3882 | # endif |
2246 | |
3883 | |
2247 | #define DEF_STAT_INTERVAL 5.0074891 |
3884 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3885 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2248 | #define MIN_STAT_INTERVAL 0.1074891 |
3886 | #define MIN_STAT_INTERVAL 0.1074891 |
2249 | |
3887 | |
2250 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3888 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2251 | |
3889 | |
2252 | #if EV_USE_INOTIFY |
3890 | #if EV_USE_INOTIFY |
2253 | # define EV_INOTIFY_BUFSIZE 8192 |
3891 | |
|
|
3892 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3893 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2254 | |
3894 | |
2255 | static void noinline |
3895 | static void noinline |
2256 | infy_add (EV_P_ ev_stat *w) |
3896 | infy_add (EV_P_ ev_stat *w) |
2257 | { |
3897 | { |
2258 | 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); |
3898 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3899 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3900 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3901 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2259 | |
3902 | |
2260 | if (w->wd < 0) |
3903 | if (w->wd >= 0) |
|
|
3904 | { |
|
|
3905 | struct statfs sfs; |
|
|
3906 | |
|
|
3907 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3908 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3909 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3910 | |
|
|
3911 | if (!fs_2625) |
|
|
3912 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3913 | else if (!statfs (w->path, &sfs) |
|
|
3914 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3915 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3916 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
3917 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3918 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3919 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3920 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
3921 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3922 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
3923 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3924 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
3925 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3926 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3927 | else |
|
|
3928 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2261 | { |
3929 | } |
2262 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3930 | else |
|
|
3931 | { |
|
|
3932 | /* can't use inotify, continue to stat */ |
|
|
3933 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2263 | |
3934 | |
2264 | /* monitor some parent directory for speedup hints */ |
3935 | /* if path is not there, monitor some parent directory for speedup hints */ |
2265 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
3936 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2266 | /* but an efficiency issue only */ |
3937 | /* but an efficiency issue only */ |
2267 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3938 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2268 | { |
3939 | { |
2269 | char path [4096]; |
3940 | char path [4096]; |
2270 | strcpy (path, w->path); |
3941 | strcpy (path, w->path); |
… | |
… | |
2274 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3945 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2275 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3946 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2276 | |
3947 | |
2277 | char *pend = strrchr (path, '/'); |
3948 | char *pend = strrchr (path, '/'); |
2278 | |
3949 | |
2279 | if (!pend) |
3950 | if (!pend || pend == path) |
2280 | break; /* whoops, no '/', complain to your admin */ |
3951 | break; |
2281 | |
3952 | |
2282 | *pend = 0; |
3953 | *pend = 0; |
2283 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3954 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2284 | } |
3955 | } |
2285 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3956 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2286 | } |
3957 | } |
2287 | } |
3958 | } |
2288 | else |
|
|
2289 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2290 | |
3959 | |
2291 | if (w->wd >= 0) |
3960 | if (w->wd >= 0) |
2292 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3961 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3962 | |
|
|
3963 | /* now re-arm timer, if required */ |
|
|
3964 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3965 | ev_timer_again (EV_A_ &w->timer); |
|
|
3966 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2293 | } |
3967 | } |
2294 | |
3968 | |
2295 | static void noinline |
3969 | static void noinline |
2296 | infy_del (EV_P_ ev_stat *w) |
3970 | infy_del (EV_P_ ev_stat *w) |
2297 | { |
3971 | { |
… | |
… | |
2300 | |
3974 | |
2301 | if (wd < 0) |
3975 | if (wd < 0) |
2302 | return; |
3976 | return; |
2303 | |
3977 | |
2304 | w->wd = -2; |
3978 | w->wd = -2; |
2305 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3979 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2306 | wlist_del (&fs_hash [slot].head, (WL)w); |
3980 | wlist_del (&fs_hash [slot].head, (WL)w); |
2307 | |
3981 | |
2308 | /* remove this watcher, if others are watching it, they will rearm */ |
3982 | /* remove this watcher, if others are watching it, they will rearm */ |
2309 | inotify_rm_watch (fs_fd, wd); |
3983 | inotify_rm_watch (fs_fd, wd); |
2310 | } |
3984 | } |
2311 | |
3985 | |
2312 | static void noinline |
3986 | static void noinline |
2313 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3987 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2314 | { |
3988 | { |
2315 | if (slot < 0) |
3989 | if (slot < 0) |
2316 | /* overflow, need to check for all hahs slots */ |
3990 | /* overflow, need to check for all hash slots */ |
2317 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3991 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2318 | infy_wd (EV_A_ slot, wd, ev); |
3992 | infy_wd (EV_A_ slot, wd, ev); |
2319 | else |
3993 | else |
2320 | { |
3994 | { |
2321 | WL w_; |
3995 | WL w_; |
2322 | |
3996 | |
2323 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3997 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2324 | { |
3998 | { |
2325 | ev_stat *w = (ev_stat *)w_; |
3999 | ev_stat *w = (ev_stat *)w_; |
2326 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4000 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2327 | |
4001 | |
2328 | if (w->wd == wd || wd == -1) |
4002 | if (w->wd == wd || wd == -1) |
2329 | { |
4003 | { |
2330 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4004 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2331 | { |
4005 | { |
|
|
4006 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2332 | w->wd = -1; |
4007 | w->wd = -1; |
2333 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4008 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2334 | } |
4009 | } |
2335 | |
4010 | |
2336 | stat_timer_cb (EV_A_ &w->timer, 0); |
4011 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2341 | |
4016 | |
2342 | static void |
4017 | static void |
2343 | infy_cb (EV_P_ ev_io *w, int revents) |
4018 | infy_cb (EV_P_ ev_io *w, int revents) |
2344 | { |
4019 | { |
2345 | char buf [EV_INOTIFY_BUFSIZE]; |
4020 | char buf [EV_INOTIFY_BUFSIZE]; |
2346 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2347 | int ofs; |
4021 | int ofs; |
2348 | int len = read (fs_fd, buf, sizeof (buf)); |
4022 | int len = read (fs_fd, buf, sizeof (buf)); |
2349 | |
4023 | |
2350 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4024 | for (ofs = 0; ofs < len; ) |
|
|
4025 | { |
|
|
4026 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2351 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4027 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4028 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4029 | } |
2352 | } |
4030 | } |
2353 | |
4031 | |
2354 | void inline_size |
4032 | inline_size void ecb_cold |
|
|
4033 | ev_check_2625 (EV_P) |
|
|
4034 | { |
|
|
4035 | /* kernels < 2.6.25 are borked |
|
|
4036 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
4037 | */ |
|
|
4038 | if (ev_linux_version () < 0x020619) |
|
|
4039 | return; |
|
|
4040 | |
|
|
4041 | fs_2625 = 1; |
|
|
4042 | } |
|
|
4043 | |
|
|
4044 | inline_size int |
|
|
4045 | infy_newfd (void) |
|
|
4046 | { |
|
|
4047 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4048 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4049 | if (fd >= 0) |
|
|
4050 | return fd; |
|
|
4051 | #endif |
|
|
4052 | return inotify_init (); |
|
|
4053 | } |
|
|
4054 | |
|
|
4055 | inline_size void |
2355 | infy_init (EV_P) |
4056 | infy_init (EV_P) |
2356 | { |
4057 | { |
2357 | if (fs_fd != -2) |
4058 | if (fs_fd != -2) |
2358 | return; |
4059 | return; |
2359 | |
4060 | |
|
|
4061 | fs_fd = -1; |
|
|
4062 | |
|
|
4063 | ev_check_2625 (EV_A); |
|
|
4064 | |
2360 | fs_fd = inotify_init (); |
4065 | fs_fd = infy_newfd (); |
2361 | |
4066 | |
2362 | if (fs_fd >= 0) |
4067 | if (fs_fd >= 0) |
2363 | { |
4068 | { |
|
|
4069 | fd_intern (fs_fd); |
2364 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4070 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2365 | ev_set_priority (&fs_w, EV_MAXPRI); |
4071 | ev_set_priority (&fs_w, EV_MAXPRI); |
2366 | ev_io_start (EV_A_ &fs_w); |
4072 | ev_io_start (EV_A_ &fs_w); |
|
|
4073 | ev_unref (EV_A); |
2367 | } |
4074 | } |
2368 | } |
4075 | } |
2369 | |
4076 | |
2370 | void inline_size |
4077 | inline_size void |
2371 | infy_fork (EV_P) |
4078 | infy_fork (EV_P) |
2372 | { |
4079 | { |
2373 | int slot; |
4080 | int slot; |
2374 | |
4081 | |
2375 | if (fs_fd < 0) |
4082 | if (fs_fd < 0) |
2376 | return; |
4083 | return; |
2377 | |
4084 | |
|
|
4085 | ev_ref (EV_A); |
|
|
4086 | ev_io_stop (EV_A_ &fs_w); |
2378 | close (fs_fd); |
4087 | close (fs_fd); |
2379 | fs_fd = inotify_init (); |
4088 | fs_fd = infy_newfd (); |
2380 | |
4089 | |
|
|
4090 | if (fs_fd >= 0) |
|
|
4091 | { |
|
|
4092 | fd_intern (fs_fd); |
|
|
4093 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4094 | ev_io_start (EV_A_ &fs_w); |
|
|
4095 | ev_unref (EV_A); |
|
|
4096 | } |
|
|
4097 | |
2381 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4098 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2382 | { |
4099 | { |
2383 | WL w_ = fs_hash [slot].head; |
4100 | WL w_ = fs_hash [slot].head; |
2384 | fs_hash [slot].head = 0; |
4101 | fs_hash [slot].head = 0; |
2385 | |
4102 | |
2386 | while (w_) |
4103 | while (w_) |
… | |
… | |
2391 | w->wd = -1; |
4108 | w->wd = -1; |
2392 | |
4109 | |
2393 | if (fs_fd >= 0) |
4110 | if (fs_fd >= 0) |
2394 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4111 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2395 | else |
4112 | else |
|
|
4113 | { |
|
|
4114 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4115 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2396 | ev_timer_start (EV_A_ &w->timer); |
4116 | ev_timer_again (EV_A_ &w->timer); |
|
|
4117 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4118 | } |
2397 | } |
4119 | } |
2398 | |
|
|
2399 | } |
4120 | } |
2400 | } |
4121 | } |
2401 | |
4122 | |
|
|
4123 | #endif |
|
|
4124 | |
|
|
4125 | #ifdef _WIN32 |
|
|
4126 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
4127 | #else |
|
|
4128 | # define EV_LSTAT(p,b) lstat (p, b) |
2402 | #endif |
4129 | #endif |
2403 | |
4130 | |
2404 | void |
4131 | void |
2405 | ev_stat_stat (EV_P_ ev_stat *w) |
4132 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
2406 | { |
4133 | { |
2407 | if (lstat (w->path, &w->attr) < 0) |
4134 | if (lstat (w->path, &w->attr) < 0) |
2408 | w->attr.st_nlink = 0; |
4135 | w->attr.st_nlink = 0; |
2409 | else if (!w->attr.st_nlink) |
4136 | else if (!w->attr.st_nlink) |
2410 | w->attr.st_nlink = 1; |
4137 | w->attr.st_nlink = 1; |
… | |
… | |
2413 | static void noinline |
4140 | static void noinline |
2414 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4141 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2415 | { |
4142 | { |
2416 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4143 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2417 | |
4144 | |
2418 | /* we copy this here each the time so that */ |
4145 | ev_statdata prev = w->attr; |
2419 | /* prev has the old value when the callback gets invoked */ |
|
|
2420 | w->prev = w->attr; |
|
|
2421 | ev_stat_stat (EV_A_ w); |
4146 | ev_stat_stat (EV_A_ w); |
2422 | |
4147 | |
2423 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4148 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2424 | if ( |
4149 | if ( |
2425 | w->prev.st_dev != w->attr.st_dev |
4150 | prev.st_dev != w->attr.st_dev |
2426 | || w->prev.st_ino != w->attr.st_ino |
4151 | || prev.st_ino != w->attr.st_ino |
2427 | || w->prev.st_mode != w->attr.st_mode |
4152 | || prev.st_mode != w->attr.st_mode |
2428 | || w->prev.st_nlink != w->attr.st_nlink |
4153 | || prev.st_nlink != w->attr.st_nlink |
2429 | || w->prev.st_uid != w->attr.st_uid |
4154 | || prev.st_uid != w->attr.st_uid |
2430 | || w->prev.st_gid != w->attr.st_gid |
4155 | || prev.st_gid != w->attr.st_gid |
2431 | || w->prev.st_rdev != w->attr.st_rdev |
4156 | || prev.st_rdev != w->attr.st_rdev |
2432 | || w->prev.st_size != w->attr.st_size |
4157 | || prev.st_size != w->attr.st_size |
2433 | || w->prev.st_atime != w->attr.st_atime |
4158 | || prev.st_atime != w->attr.st_atime |
2434 | || w->prev.st_mtime != w->attr.st_mtime |
4159 | || prev.st_mtime != w->attr.st_mtime |
2435 | || w->prev.st_ctime != w->attr.st_ctime |
4160 | || prev.st_ctime != w->attr.st_ctime |
2436 | ) { |
4161 | ) { |
|
|
4162 | /* we only update w->prev on actual differences */ |
|
|
4163 | /* in case we test more often than invoke the callback, */ |
|
|
4164 | /* to ensure that prev is always different to attr */ |
|
|
4165 | w->prev = prev; |
|
|
4166 | |
2437 | #if EV_USE_INOTIFY |
4167 | #if EV_USE_INOTIFY |
|
|
4168 | if (fs_fd >= 0) |
|
|
4169 | { |
2438 | infy_del (EV_A_ w); |
4170 | infy_del (EV_A_ w); |
2439 | infy_add (EV_A_ w); |
4171 | infy_add (EV_A_ w); |
2440 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
4172 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
4173 | } |
2441 | #endif |
4174 | #endif |
2442 | |
4175 | |
2443 | ev_feed_event (EV_A_ w, EV_STAT); |
4176 | ev_feed_event (EV_A_ w, EV_STAT); |
2444 | } |
4177 | } |
2445 | } |
4178 | } |
2446 | |
4179 | |
2447 | void |
4180 | void |
2448 | ev_stat_start (EV_P_ ev_stat *w) |
4181 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
2449 | { |
4182 | { |
2450 | if (expect_false (ev_is_active (w))) |
4183 | if (expect_false (ev_is_active (w))) |
2451 | return; |
4184 | return; |
2452 | |
4185 | |
2453 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2454 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2455 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2456 | |
|
|
2457 | ev_stat_stat (EV_A_ w); |
4186 | ev_stat_stat (EV_A_ w); |
2458 | |
4187 | |
|
|
4188 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2459 | if (w->interval < MIN_STAT_INTERVAL) |
4189 | w->interval = MIN_STAT_INTERVAL; |
2460 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2461 | |
4190 | |
2462 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
4191 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2463 | ev_set_priority (&w->timer, ev_priority (w)); |
4192 | ev_set_priority (&w->timer, ev_priority (w)); |
2464 | |
4193 | |
2465 | #if EV_USE_INOTIFY |
4194 | #if EV_USE_INOTIFY |
2466 | infy_init (EV_A); |
4195 | infy_init (EV_A); |
2467 | |
4196 | |
2468 | if (fs_fd >= 0) |
4197 | if (fs_fd >= 0) |
2469 | infy_add (EV_A_ w); |
4198 | infy_add (EV_A_ w); |
2470 | else |
4199 | else |
2471 | #endif |
4200 | #endif |
|
|
4201 | { |
2472 | ev_timer_start (EV_A_ &w->timer); |
4202 | ev_timer_again (EV_A_ &w->timer); |
|
|
4203 | ev_unref (EV_A); |
|
|
4204 | } |
2473 | |
4205 | |
2474 | ev_start (EV_A_ (W)w, 1); |
4206 | ev_start (EV_A_ (W)w, 1); |
|
|
4207 | |
|
|
4208 | EV_FREQUENT_CHECK; |
2475 | } |
4209 | } |
2476 | |
4210 | |
2477 | void |
4211 | void |
2478 | ev_stat_stop (EV_P_ ev_stat *w) |
4212 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
2479 | { |
4213 | { |
2480 | clear_pending (EV_A_ (W)w); |
4214 | clear_pending (EV_A_ (W)w); |
2481 | if (expect_false (!ev_is_active (w))) |
4215 | if (expect_false (!ev_is_active (w))) |
2482 | return; |
4216 | return; |
2483 | |
4217 | |
|
|
4218 | EV_FREQUENT_CHECK; |
|
|
4219 | |
2484 | #if EV_USE_INOTIFY |
4220 | #if EV_USE_INOTIFY |
2485 | infy_del (EV_A_ w); |
4221 | infy_del (EV_A_ w); |
2486 | #endif |
4222 | #endif |
|
|
4223 | |
|
|
4224 | if (ev_is_active (&w->timer)) |
|
|
4225 | { |
|
|
4226 | ev_ref (EV_A); |
2487 | ev_timer_stop (EV_A_ &w->timer); |
4227 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4228 | } |
2488 | |
4229 | |
2489 | ev_stop (EV_A_ (W)w); |
4230 | ev_stop (EV_A_ (W)w); |
|
|
4231 | |
|
|
4232 | EV_FREQUENT_CHECK; |
2490 | } |
4233 | } |
2491 | #endif |
4234 | #endif |
2492 | |
4235 | |
2493 | #if EV_IDLE_ENABLE |
4236 | #if EV_IDLE_ENABLE |
2494 | void |
4237 | void |
2495 | ev_idle_start (EV_P_ ev_idle *w) |
4238 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
2496 | { |
4239 | { |
2497 | if (expect_false (ev_is_active (w))) |
4240 | if (expect_false (ev_is_active (w))) |
2498 | return; |
4241 | return; |
2499 | |
4242 | |
2500 | pri_adjust (EV_A_ (W)w); |
4243 | pri_adjust (EV_A_ (W)w); |
|
|
4244 | |
|
|
4245 | EV_FREQUENT_CHECK; |
2501 | |
4246 | |
2502 | { |
4247 | { |
2503 | int active = ++idlecnt [ABSPRI (w)]; |
4248 | int active = ++idlecnt [ABSPRI (w)]; |
2504 | |
4249 | |
2505 | ++idleall; |
4250 | ++idleall; |
2506 | ev_start (EV_A_ (W)w, active); |
4251 | ev_start (EV_A_ (W)w, active); |
2507 | |
4252 | |
2508 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4253 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2509 | idles [ABSPRI (w)][active - 1] = w; |
4254 | idles [ABSPRI (w)][active - 1] = w; |
2510 | } |
4255 | } |
|
|
4256 | |
|
|
4257 | EV_FREQUENT_CHECK; |
2511 | } |
4258 | } |
2512 | |
4259 | |
2513 | void |
4260 | void |
2514 | ev_idle_stop (EV_P_ ev_idle *w) |
4261 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
2515 | { |
4262 | { |
2516 | clear_pending (EV_A_ (W)w); |
4263 | clear_pending (EV_A_ (W)w); |
2517 | if (expect_false (!ev_is_active (w))) |
4264 | if (expect_false (!ev_is_active (w))) |
2518 | return; |
4265 | return; |
2519 | |
4266 | |
|
|
4267 | EV_FREQUENT_CHECK; |
|
|
4268 | |
2520 | { |
4269 | { |
2521 | int active = ev_active (w); |
4270 | int active = ev_active (w); |
2522 | |
4271 | |
2523 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
4272 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2524 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
4273 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2525 | |
4274 | |
2526 | ev_stop (EV_A_ (W)w); |
4275 | ev_stop (EV_A_ (W)w); |
2527 | --idleall; |
4276 | --idleall; |
2528 | } |
4277 | } |
2529 | } |
|
|
2530 | #endif |
|
|
2531 | |
4278 | |
|
|
4279 | EV_FREQUENT_CHECK; |
|
|
4280 | } |
|
|
4281 | #endif |
|
|
4282 | |
|
|
4283 | #if EV_PREPARE_ENABLE |
2532 | void |
4284 | void |
2533 | ev_prepare_start (EV_P_ ev_prepare *w) |
4285 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
2534 | { |
4286 | { |
2535 | if (expect_false (ev_is_active (w))) |
4287 | if (expect_false (ev_is_active (w))) |
2536 | return; |
4288 | return; |
|
|
4289 | |
|
|
4290 | EV_FREQUENT_CHECK; |
2537 | |
4291 | |
2538 | ev_start (EV_A_ (W)w, ++preparecnt); |
4292 | ev_start (EV_A_ (W)w, ++preparecnt); |
2539 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4293 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2540 | prepares [preparecnt - 1] = w; |
4294 | prepares [preparecnt - 1] = w; |
|
|
4295 | |
|
|
4296 | EV_FREQUENT_CHECK; |
2541 | } |
4297 | } |
2542 | |
4298 | |
2543 | void |
4299 | void |
2544 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4300 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
2545 | { |
4301 | { |
2546 | clear_pending (EV_A_ (W)w); |
4302 | clear_pending (EV_A_ (W)w); |
2547 | if (expect_false (!ev_is_active (w))) |
4303 | if (expect_false (!ev_is_active (w))) |
2548 | return; |
4304 | return; |
2549 | |
4305 | |
|
|
4306 | EV_FREQUENT_CHECK; |
|
|
4307 | |
2550 | { |
4308 | { |
2551 | int active = ev_active (w); |
4309 | int active = ev_active (w); |
2552 | |
4310 | |
2553 | prepares [active - 1] = prepares [--preparecnt]; |
4311 | prepares [active - 1] = prepares [--preparecnt]; |
2554 | ev_active (prepares [active - 1]) = active; |
4312 | ev_active (prepares [active - 1]) = active; |
2555 | } |
4313 | } |
2556 | |
4314 | |
2557 | ev_stop (EV_A_ (W)w); |
4315 | ev_stop (EV_A_ (W)w); |
2558 | } |
|
|
2559 | |
4316 | |
|
|
4317 | EV_FREQUENT_CHECK; |
|
|
4318 | } |
|
|
4319 | #endif |
|
|
4320 | |
|
|
4321 | #if EV_CHECK_ENABLE |
2560 | void |
4322 | void |
2561 | ev_check_start (EV_P_ ev_check *w) |
4323 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
2562 | { |
4324 | { |
2563 | if (expect_false (ev_is_active (w))) |
4325 | if (expect_false (ev_is_active (w))) |
2564 | return; |
4326 | return; |
|
|
4327 | |
|
|
4328 | EV_FREQUENT_CHECK; |
2565 | |
4329 | |
2566 | ev_start (EV_A_ (W)w, ++checkcnt); |
4330 | ev_start (EV_A_ (W)w, ++checkcnt); |
2567 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4331 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2568 | checks [checkcnt - 1] = w; |
4332 | checks [checkcnt - 1] = w; |
|
|
4333 | |
|
|
4334 | EV_FREQUENT_CHECK; |
2569 | } |
4335 | } |
2570 | |
4336 | |
2571 | void |
4337 | void |
2572 | ev_check_stop (EV_P_ ev_check *w) |
4338 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
2573 | { |
4339 | { |
2574 | clear_pending (EV_A_ (W)w); |
4340 | clear_pending (EV_A_ (W)w); |
2575 | if (expect_false (!ev_is_active (w))) |
4341 | if (expect_false (!ev_is_active (w))) |
2576 | return; |
4342 | return; |
2577 | |
4343 | |
|
|
4344 | EV_FREQUENT_CHECK; |
|
|
4345 | |
2578 | { |
4346 | { |
2579 | int active = ev_active (w); |
4347 | int active = ev_active (w); |
2580 | |
4348 | |
2581 | checks [active - 1] = checks [--checkcnt]; |
4349 | checks [active - 1] = checks [--checkcnt]; |
2582 | ev_active (checks [active - 1]) = active; |
4350 | ev_active (checks [active - 1]) = active; |
2583 | } |
4351 | } |
2584 | |
4352 | |
2585 | ev_stop (EV_A_ (W)w); |
4353 | ev_stop (EV_A_ (W)w); |
|
|
4354 | |
|
|
4355 | EV_FREQUENT_CHECK; |
2586 | } |
4356 | } |
|
|
4357 | #endif |
2587 | |
4358 | |
2588 | #if EV_EMBED_ENABLE |
4359 | #if EV_EMBED_ENABLE |
2589 | void noinline |
4360 | void noinline |
2590 | ev_embed_sweep (EV_P_ ev_embed *w) |
4361 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
2591 | { |
4362 | { |
2592 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4363 | ev_run (w->other, EVRUN_NOWAIT); |
2593 | } |
4364 | } |
2594 | |
4365 | |
2595 | static void |
4366 | static void |
2596 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4367 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2597 | { |
4368 | { |
2598 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4369 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2599 | |
4370 | |
2600 | if (ev_cb (w)) |
4371 | if (ev_cb (w)) |
2601 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4372 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2602 | else |
4373 | else |
2603 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4374 | ev_run (w->other, EVRUN_NOWAIT); |
2604 | } |
4375 | } |
2605 | |
4376 | |
2606 | static void |
4377 | static void |
2607 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4378 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2608 | { |
4379 | { |
2609 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4380 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2610 | |
4381 | |
2611 | { |
4382 | { |
2612 | struct ev_loop *loop = w->other; |
4383 | EV_P = w->other; |
2613 | |
4384 | |
2614 | while (fdchangecnt) |
4385 | while (fdchangecnt) |
2615 | { |
4386 | { |
2616 | fd_reify (EV_A); |
4387 | fd_reify (EV_A); |
2617 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4388 | ev_run (EV_A_ EVRUN_NOWAIT); |
2618 | } |
4389 | } |
2619 | } |
4390 | } |
|
|
4391 | } |
|
|
4392 | |
|
|
4393 | static void |
|
|
4394 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
4395 | { |
|
|
4396 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
4397 | |
|
|
4398 | ev_embed_stop (EV_A_ w); |
|
|
4399 | |
|
|
4400 | { |
|
|
4401 | EV_P = w->other; |
|
|
4402 | |
|
|
4403 | ev_loop_fork (EV_A); |
|
|
4404 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4405 | } |
|
|
4406 | |
|
|
4407 | ev_embed_start (EV_A_ w); |
2620 | } |
4408 | } |
2621 | |
4409 | |
2622 | #if 0 |
4410 | #if 0 |
2623 | static void |
4411 | static void |
2624 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4412 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2626 | ev_idle_stop (EV_A_ idle); |
4414 | ev_idle_stop (EV_A_ idle); |
2627 | } |
4415 | } |
2628 | #endif |
4416 | #endif |
2629 | |
4417 | |
2630 | void |
4418 | void |
2631 | ev_embed_start (EV_P_ ev_embed *w) |
4419 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
2632 | { |
4420 | { |
2633 | if (expect_false (ev_is_active (w))) |
4421 | if (expect_false (ev_is_active (w))) |
2634 | return; |
4422 | return; |
2635 | |
4423 | |
2636 | { |
4424 | { |
2637 | struct ev_loop *loop = w->other; |
4425 | EV_P = w->other; |
2638 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4426 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2639 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4427 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2640 | } |
4428 | } |
|
|
4429 | |
|
|
4430 | EV_FREQUENT_CHECK; |
2641 | |
4431 | |
2642 | ev_set_priority (&w->io, ev_priority (w)); |
4432 | ev_set_priority (&w->io, ev_priority (w)); |
2643 | ev_io_start (EV_A_ &w->io); |
4433 | ev_io_start (EV_A_ &w->io); |
2644 | |
4434 | |
2645 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4435 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2646 | ev_set_priority (&w->prepare, EV_MINPRI); |
4436 | ev_set_priority (&w->prepare, EV_MINPRI); |
2647 | ev_prepare_start (EV_A_ &w->prepare); |
4437 | ev_prepare_start (EV_A_ &w->prepare); |
2648 | |
4438 | |
|
|
4439 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
4440 | ev_fork_start (EV_A_ &w->fork); |
|
|
4441 | |
2649 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4442 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2650 | |
4443 | |
2651 | ev_start (EV_A_ (W)w, 1); |
4444 | ev_start (EV_A_ (W)w, 1); |
|
|
4445 | |
|
|
4446 | EV_FREQUENT_CHECK; |
2652 | } |
4447 | } |
2653 | |
4448 | |
2654 | void |
4449 | void |
2655 | ev_embed_stop (EV_P_ ev_embed *w) |
4450 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
2656 | { |
4451 | { |
2657 | clear_pending (EV_A_ (W)w); |
4452 | clear_pending (EV_A_ (W)w); |
2658 | if (expect_false (!ev_is_active (w))) |
4453 | if (expect_false (!ev_is_active (w))) |
2659 | return; |
4454 | return; |
2660 | |
4455 | |
|
|
4456 | EV_FREQUENT_CHECK; |
|
|
4457 | |
2661 | ev_io_stop (EV_A_ &w->io); |
4458 | ev_io_stop (EV_A_ &w->io); |
2662 | ev_prepare_stop (EV_A_ &w->prepare); |
4459 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
4460 | ev_fork_stop (EV_A_ &w->fork); |
2663 | |
4461 | |
2664 | ev_stop (EV_A_ (W)w); |
4462 | ev_stop (EV_A_ (W)w); |
|
|
4463 | |
|
|
4464 | EV_FREQUENT_CHECK; |
2665 | } |
4465 | } |
2666 | #endif |
4466 | #endif |
2667 | |
4467 | |
2668 | #if EV_FORK_ENABLE |
4468 | #if EV_FORK_ENABLE |
2669 | void |
4469 | void |
2670 | ev_fork_start (EV_P_ ev_fork *w) |
4470 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
2671 | { |
4471 | { |
2672 | if (expect_false (ev_is_active (w))) |
4472 | if (expect_false (ev_is_active (w))) |
2673 | return; |
4473 | return; |
|
|
4474 | |
|
|
4475 | EV_FREQUENT_CHECK; |
2674 | |
4476 | |
2675 | ev_start (EV_A_ (W)w, ++forkcnt); |
4477 | ev_start (EV_A_ (W)w, ++forkcnt); |
2676 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4478 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2677 | forks [forkcnt - 1] = w; |
4479 | forks [forkcnt - 1] = w; |
|
|
4480 | |
|
|
4481 | EV_FREQUENT_CHECK; |
2678 | } |
4482 | } |
2679 | |
4483 | |
2680 | void |
4484 | void |
2681 | ev_fork_stop (EV_P_ ev_fork *w) |
4485 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
2682 | { |
4486 | { |
2683 | clear_pending (EV_A_ (W)w); |
4487 | clear_pending (EV_A_ (W)w); |
2684 | if (expect_false (!ev_is_active (w))) |
4488 | if (expect_false (!ev_is_active (w))) |
2685 | return; |
4489 | return; |
2686 | |
4490 | |
|
|
4491 | EV_FREQUENT_CHECK; |
|
|
4492 | |
2687 | { |
4493 | { |
2688 | int active = ev_active (w); |
4494 | int active = ev_active (w); |
2689 | |
4495 | |
2690 | forks [active - 1] = forks [--forkcnt]; |
4496 | forks [active - 1] = forks [--forkcnt]; |
2691 | ev_active (forks [active - 1]) = active; |
4497 | ev_active (forks [active - 1]) = active; |
2692 | } |
4498 | } |
2693 | |
4499 | |
2694 | ev_stop (EV_A_ (W)w); |
4500 | ev_stop (EV_A_ (W)w); |
|
|
4501 | |
|
|
4502 | EV_FREQUENT_CHECK; |
|
|
4503 | } |
|
|
4504 | #endif |
|
|
4505 | |
|
|
4506 | #if EV_CLEANUP_ENABLE |
|
|
4507 | void |
|
|
4508 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4509 | { |
|
|
4510 | if (expect_false (ev_is_active (w))) |
|
|
4511 | return; |
|
|
4512 | |
|
|
4513 | EV_FREQUENT_CHECK; |
|
|
4514 | |
|
|
4515 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4516 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4517 | cleanups [cleanupcnt - 1] = w; |
|
|
4518 | |
|
|
4519 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4520 | ev_unref (EV_A); |
|
|
4521 | EV_FREQUENT_CHECK; |
|
|
4522 | } |
|
|
4523 | |
|
|
4524 | void |
|
|
4525 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4526 | { |
|
|
4527 | clear_pending (EV_A_ (W)w); |
|
|
4528 | if (expect_false (!ev_is_active (w))) |
|
|
4529 | return; |
|
|
4530 | |
|
|
4531 | EV_FREQUENT_CHECK; |
|
|
4532 | ev_ref (EV_A); |
|
|
4533 | |
|
|
4534 | { |
|
|
4535 | int active = ev_active (w); |
|
|
4536 | |
|
|
4537 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4538 | ev_active (cleanups [active - 1]) = active; |
|
|
4539 | } |
|
|
4540 | |
|
|
4541 | ev_stop (EV_A_ (W)w); |
|
|
4542 | |
|
|
4543 | EV_FREQUENT_CHECK; |
2695 | } |
4544 | } |
2696 | #endif |
4545 | #endif |
2697 | |
4546 | |
2698 | #if EV_ASYNC_ENABLE |
4547 | #if EV_ASYNC_ENABLE |
2699 | void |
4548 | void |
2700 | ev_async_start (EV_P_ ev_async *w) |
4549 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
2701 | { |
4550 | { |
2702 | if (expect_false (ev_is_active (w))) |
4551 | if (expect_false (ev_is_active (w))) |
2703 | return; |
4552 | return; |
2704 | |
4553 | |
|
|
4554 | w->sent = 0; |
|
|
4555 | |
2705 | evpipe_init (EV_A); |
4556 | evpipe_init (EV_A); |
|
|
4557 | |
|
|
4558 | EV_FREQUENT_CHECK; |
2706 | |
4559 | |
2707 | ev_start (EV_A_ (W)w, ++asynccnt); |
4560 | ev_start (EV_A_ (W)w, ++asynccnt); |
2708 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4561 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2709 | asyncs [asynccnt - 1] = w; |
4562 | asyncs [asynccnt - 1] = w; |
|
|
4563 | |
|
|
4564 | EV_FREQUENT_CHECK; |
2710 | } |
4565 | } |
2711 | |
4566 | |
2712 | void |
4567 | void |
2713 | ev_async_stop (EV_P_ ev_async *w) |
4568 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
2714 | { |
4569 | { |
2715 | clear_pending (EV_A_ (W)w); |
4570 | clear_pending (EV_A_ (W)w); |
2716 | if (expect_false (!ev_is_active (w))) |
4571 | if (expect_false (!ev_is_active (w))) |
2717 | return; |
4572 | return; |
2718 | |
4573 | |
|
|
4574 | EV_FREQUENT_CHECK; |
|
|
4575 | |
2719 | { |
4576 | { |
2720 | int active = ev_active (w); |
4577 | int active = ev_active (w); |
2721 | |
4578 | |
2722 | asyncs [active - 1] = asyncs [--asynccnt]; |
4579 | asyncs [active - 1] = asyncs [--asynccnt]; |
2723 | ev_active (asyncs [active - 1]) = active; |
4580 | ev_active (asyncs [active - 1]) = active; |
2724 | } |
4581 | } |
2725 | |
4582 | |
2726 | ev_stop (EV_A_ (W)w); |
4583 | ev_stop (EV_A_ (W)w); |
|
|
4584 | |
|
|
4585 | EV_FREQUENT_CHECK; |
2727 | } |
4586 | } |
2728 | |
4587 | |
2729 | void |
4588 | void |
2730 | ev_async_send (EV_P_ ev_async *w) |
4589 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
2731 | { |
4590 | { |
2732 | w->sent = 1; |
4591 | w->sent = 1; |
2733 | evpipe_write (EV_A_ &gotasync); |
4592 | evpipe_write (EV_A_ &async_pending); |
2734 | } |
4593 | } |
2735 | #endif |
4594 | #endif |
2736 | |
4595 | |
2737 | /*****************************************************************************/ |
4596 | /*****************************************************************************/ |
2738 | |
4597 | |
… | |
… | |
2748 | once_cb (EV_P_ struct ev_once *once, int revents) |
4607 | once_cb (EV_P_ struct ev_once *once, int revents) |
2749 | { |
4608 | { |
2750 | void (*cb)(int revents, void *arg) = once->cb; |
4609 | void (*cb)(int revents, void *arg) = once->cb; |
2751 | void *arg = once->arg; |
4610 | void *arg = once->arg; |
2752 | |
4611 | |
2753 | ev_io_stop (EV_A_ &once->io); |
4612 | ev_io_stop (EV_A_ &once->io); |
2754 | ev_timer_stop (EV_A_ &once->to); |
4613 | ev_timer_stop (EV_A_ &once->to); |
2755 | ev_free (once); |
4614 | ev_free (once); |
2756 | |
4615 | |
2757 | cb (revents, arg); |
4616 | cb (revents, arg); |
2758 | } |
4617 | } |
2759 | |
4618 | |
2760 | static void |
4619 | static void |
2761 | once_cb_io (EV_P_ ev_io *w, int revents) |
4620 | once_cb_io (EV_P_ ev_io *w, int revents) |
2762 | { |
4621 | { |
2763 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
4622 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
4623 | |
|
|
4624 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2764 | } |
4625 | } |
2765 | |
4626 | |
2766 | static void |
4627 | static void |
2767 | once_cb_to (EV_P_ ev_timer *w, int revents) |
4628 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2768 | { |
4629 | { |
2769 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
4630 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
4631 | |
|
|
4632 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2770 | } |
4633 | } |
2771 | |
4634 | |
2772 | void |
4635 | void |
2773 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4636 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
2774 | { |
4637 | { |
2775 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4638 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2776 | |
4639 | |
2777 | if (expect_false (!once)) |
4640 | if (expect_false (!once)) |
2778 | { |
4641 | { |
2779 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4642 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2780 | return; |
4643 | return; |
2781 | } |
4644 | } |
2782 | |
4645 | |
2783 | once->cb = cb; |
4646 | once->cb = cb; |
2784 | once->arg = arg; |
4647 | once->arg = arg; |
… | |
… | |
2796 | ev_timer_set (&once->to, timeout, 0.); |
4659 | ev_timer_set (&once->to, timeout, 0.); |
2797 | ev_timer_start (EV_A_ &once->to); |
4660 | ev_timer_start (EV_A_ &once->to); |
2798 | } |
4661 | } |
2799 | } |
4662 | } |
2800 | |
4663 | |
|
|
4664 | /*****************************************************************************/ |
|
|
4665 | |
|
|
4666 | #if EV_WALK_ENABLE |
|
|
4667 | void ecb_cold |
|
|
4668 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
|
|
4669 | { |
|
|
4670 | int i, j; |
|
|
4671 | ev_watcher_list *wl, *wn; |
|
|
4672 | |
|
|
4673 | if (types & (EV_IO | EV_EMBED)) |
|
|
4674 | for (i = 0; i < anfdmax; ++i) |
|
|
4675 | for (wl = anfds [i].head; wl; ) |
|
|
4676 | { |
|
|
4677 | wn = wl->next; |
|
|
4678 | |
|
|
4679 | #if EV_EMBED_ENABLE |
|
|
4680 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
4681 | { |
|
|
4682 | if (types & EV_EMBED) |
|
|
4683 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
4684 | } |
|
|
4685 | else |
|
|
4686 | #endif |
|
|
4687 | #if EV_USE_INOTIFY |
|
|
4688 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4689 | ; |
|
|
4690 | else |
|
|
4691 | #endif |
|
|
4692 | if ((ev_io *)wl != &pipe_w) |
|
|
4693 | if (types & EV_IO) |
|
|
4694 | cb (EV_A_ EV_IO, wl); |
|
|
4695 | |
|
|
4696 | wl = wn; |
|
|
4697 | } |
|
|
4698 | |
|
|
4699 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4700 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4701 | #if EV_STAT_ENABLE |
|
|
4702 | /*TODO: timer is not always active*/ |
|
|
4703 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4704 | { |
|
|
4705 | if (types & EV_STAT) |
|
|
4706 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4707 | } |
|
|
4708 | else |
|
|
4709 | #endif |
|
|
4710 | if (types & EV_TIMER) |
|
|
4711 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4712 | |
|
|
4713 | #if EV_PERIODIC_ENABLE |
|
|
4714 | if (types & EV_PERIODIC) |
|
|
4715 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4716 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4717 | #endif |
|
|
4718 | |
|
|
4719 | #if EV_IDLE_ENABLE |
|
|
4720 | if (types & EV_IDLE) |
|
|
4721 | for (j = NUMPRI; j--; ) |
|
|
4722 | for (i = idlecnt [j]; i--; ) |
|
|
4723 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4724 | #endif |
|
|
4725 | |
|
|
4726 | #if EV_FORK_ENABLE |
|
|
4727 | if (types & EV_FORK) |
|
|
4728 | for (i = forkcnt; i--; ) |
|
|
4729 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4730 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4731 | #endif |
|
|
4732 | |
|
|
4733 | #if EV_ASYNC_ENABLE |
|
|
4734 | if (types & EV_ASYNC) |
|
|
4735 | for (i = asynccnt; i--; ) |
|
|
4736 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4737 | #endif |
|
|
4738 | |
|
|
4739 | #if EV_PREPARE_ENABLE |
|
|
4740 | if (types & EV_PREPARE) |
|
|
4741 | for (i = preparecnt; i--; ) |
|
|
4742 | # if EV_EMBED_ENABLE |
|
|
4743 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4744 | # endif |
|
|
4745 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4746 | #endif |
|
|
4747 | |
|
|
4748 | #if EV_CHECK_ENABLE |
|
|
4749 | if (types & EV_CHECK) |
|
|
4750 | for (i = checkcnt; i--; ) |
|
|
4751 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4752 | #endif |
|
|
4753 | |
|
|
4754 | #if EV_SIGNAL_ENABLE |
|
|
4755 | if (types & EV_SIGNAL) |
|
|
4756 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4757 | for (wl = signals [i].head; wl; ) |
|
|
4758 | { |
|
|
4759 | wn = wl->next; |
|
|
4760 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4761 | wl = wn; |
|
|
4762 | } |
|
|
4763 | #endif |
|
|
4764 | |
|
|
4765 | #if EV_CHILD_ENABLE |
|
|
4766 | if (types & EV_CHILD) |
|
|
4767 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4768 | for (wl = childs [i]; wl; ) |
|
|
4769 | { |
|
|
4770 | wn = wl->next; |
|
|
4771 | cb (EV_A_ EV_CHILD, wl); |
|
|
4772 | wl = wn; |
|
|
4773 | } |
|
|
4774 | #endif |
|
|
4775 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4776 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4777 | } |
|
|
4778 | #endif |
|
|
4779 | |
2801 | #if EV_MULTIPLICITY |
4780 | #if EV_MULTIPLICITY |
2802 | #include "ev_wrap.h" |
4781 | #include "ev_wrap.h" |
2803 | #endif |
4782 | #endif |
2804 | |
4783 | |
2805 | #ifdef __cplusplus |
|
|
2806 | } |
|
|
2807 | #endif |
|
|
2808 | |
|
|