1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
|
|
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
55 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
|
|
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
66 | # endif |
63 | |
67 | |
64 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
75 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
77 | # endif |
81 | # endif |
78 | # endif |
82 | # endif |
79 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
80 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
81 | # if HAVE_NANOSLEEP |
|
|
82 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
83 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
84 | # 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 |
85 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
86 | # endif |
100 | # endif |
87 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
88 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
90 | # define EV_USE_SELECT 1 |
|
|
91 | # else |
|
|
92 | # define EV_USE_SELECT 0 |
|
|
93 | # endif |
105 | # endif |
94 | # endif |
|
|
95 | |
|
|
96 | # ifndef EV_USE_POLL |
|
|
97 | # if HAVE_POLL && HAVE_POLL_H |
|
|
98 | # define EV_USE_POLL 1 |
|
|
99 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
100 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
101 | # endif |
|
|
102 | # endif |
109 | # endif |
103 | |
110 | |
104 | # ifndef EV_USE_EPOLL |
|
|
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
106 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
107 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
108 | # define EV_USE_EPOLL 0 |
|
|
109 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
110 | # endif |
118 | # endif |
111 | |
119 | |
|
|
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
112 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
114 | # define EV_USE_KQUEUE 1 |
|
|
115 | # else |
|
|
116 | # define EV_USE_KQUEUE 0 |
|
|
117 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_KQUEUE |
|
|
126 | # define EV_USE_KQUEUE 0 |
118 | # endif |
127 | # endif |
119 | |
128 | |
120 | # ifndef EV_USE_PORT |
|
|
121 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
122 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
123 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
124 | # define EV_USE_PORT 0 |
|
|
125 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_PORT |
|
|
135 | # define EV_USE_PORT 0 |
126 | # endif |
136 | # endif |
127 | |
137 | |
128 | # ifndef EV_USE_INOTIFY |
|
|
129 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
130 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
131 | # else |
|
|
132 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
133 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_INOTIFY |
|
|
144 | # define EV_USE_INOTIFY 0 |
134 | # endif |
145 | # endif |
135 | |
146 | |
|
|
147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
136 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_SIGNALFD |
137 | # if HAVE_EVENTFD |
149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
138 | # define EV_USE_EVENTFD 1 |
|
|
139 | # else |
|
|
140 | # define EV_USE_EVENTFD 0 |
|
|
141 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_SIGNALFD |
|
|
153 | # define EV_USE_SIGNALFD 0 |
|
|
154 | # endif |
|
|
155 | |
|
|
156 | # if HAVE_EVENTFD |
|
|
157 | # ifndef EV_USE_EVENTFD |
|
|
158 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_EVENTFD |
|
|
162 | # define EV_USE_EVENTFD 0 |
142 | # endif |
163 | # endif |
143 | |
164 | |
144 | #endif |
165 | #endif |
145 | |
166 | |
146 | #include <math.h> |
|
|
147 | #include <stdlib.h> |
167 | #include <stdlib.h> |
|
|
168 | #include <string.h> |
148 | #include <fcntl.h> |
169 | #include <fcntl.h> |
149 | #include <stddef.h> |
170 | #include <stddef.h> |
150 | |
171 | |
151 | #include <stdio.h> |
172 | #include <stdio.h> |
152 | |
173 | |
153 | #include <assert.h> |
174 | #include <assert.h> |
154 | #include <errno.h> |
175 | #include <errno.h> |
155 | #include <sys/types.h> |
176 | #include <sys/types.h> |
156 | #include <time.h> |
177 | #include <time.h> |
|
|
178 | #include <limits.h> |
157 | |
179 | |
158 | #include <signal.h> |
180 | #include <signal.h> |
159 | |
181 | |
160 | #ifdef EV_H |
182 | #ifdef EV_H |
161 | # include EV_H |
183 | # include EV_H |
162 | #else |
184 | #else |
163 | # include "ev.h" |
185 | # include "ev.h" |
164 | #endif |
186 | #endif |
|
|
187 | |
|
|
188 | EV_CPP(extern "C" {) |
165 | |
189 | |
166 | #ifndef _WIN32 |
190 | #ifndef _WIN32 |
167 | # include <sys/time.h> |
191 | # include <sys/time.h> |
168 | # include <sys/wait.h> |
192 | # include <sys/wait.h> |
169 | # include <unistd.h> |
193 | # include <unistd.h> |
… | |
… | |
172 | # define WIN32_LEAN_AND_MEAN |
196 | # define WIN32_LEAN_AND_MEAN |
173 | # include <windows.h> |
197 | # include <windows.h> |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
176 | # endif |
200 | # endif |
|
|
201 | # undef EV_AVOID_STDIO |
177 | #endif |
202 | #endif |
|
|
203 | |
|
|
204 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
205 | * a limit of 1024 into their select. Where people have brains, |
|
|
206 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
207 | * ordered to have a vacuum, or they do anything for money. |
|
|
208 | * This might help. Or not. |
|
|
209 | */ |
|
|
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
178 | |
211 | |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
213 | |
|
|
214 | /* try to deduce the maximum number of signals on this platform */ |
|
|
215 | #if defined (EV_NSIG) |
|
|
216 | /* use what's provided */ |
|
|
217 | #elif defined (NSIG) |
|
|
218 | # define EV_NSIG (NSIG) |
|
|
219 | #elif defined(_NSIG) |
|
|
220 | # define EV_NSIG (_NSIG) |
|
|
221 | #elif defined (SIGMAX) |
|
|
222 | # define EV_NSIG (SIGMAX+1) |
|
|
223 | #elif defined (SIG_MAX) |
|
|
224 | # define EV_NSIG (SIG_MAX+1) |
|
|
225 | #elif defined (_SIG_MAX) |
|
|
226 | # define EV_NSIG (_SIG_MAX+1) |
|
|
227 | #elif defined (MAXSIG) |
|
|
228 | # define EV_NSIG (MAXSIG+1) |
|
|
229 | #elif defined (MAX_SIG) |
|
|
230 | # define EV_NSIG (MAX_SIG+1) |
|
|
231 | #elif defined (SIGARRAYSIZE) |
|
|
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
233 | #elif defined (_sys_nsig) |
|
|
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
235 | #else |
|
|
236 | # error "unable to find value for NSIG, please report" |
|
|
237 | /* to make it compile regardless, just remove the above line, */ |
|
|
238 | /* but consider reporting it, too! :) */ |
|
|
239 | # define EV_NSIG 65 |
|
|
240 | #endif |
|
|
241 | |
|
|
242 | #ifndef EV_USE_FLOOR |
|
|
243 | # define EV_USE_FLOOR 0 |
|
|
244 | #endif |
180 | |
245 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
246 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
247 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
184 | # else |
249 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
186 | # endif |
251 | # endif |
187 | #endif |
252 | #endif |
188 | |
253 | |
189 | #ifndef EV_USE_MONOTONIC |
254 | #ifndef EV_USE_MONOTONIC |
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
191 | # define EV_USE_MONOTONIC 1 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
192 | # else |
257 | # else |
193 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
259 | # endif |
195 | #endif |
260 | #endif |
196 | |
261 | |
… | |
… | |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
263 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
264 | #endif |
200 | |
265 | |
201 | #ifndef EV_USE_NANOSLEEP |
266 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
267 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
268 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
204 | # else |
269 | # else |
205 | # define EV_USE_NANOSLEEP 0 |
270 | # define EV_USE_NANOSLEEP 0 |
206 | # endif |
271 | # endif |
207 | #endif |
272 | #endif |
208 | |
273 | |
209 | #ifndef EV_USE_SELECT |
274 | #ifndef EV_USE_SELECT |
210 | # define EV_USE_SELECT 1 |
275 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
211 | #endif |
276 | #endif |
212 | |
277 | |
213 | #ifndef EV_USE_POLL |
278 | #ifndef EV_USE_POLL |
214 | # ifdef _WIN32 |
279 | # ifdef _WIN32 |
215 | # define EV_USE_POLL 0 |
280 | # define EV_USE_POLL 0 |
216 | # else |
281 | # else |
217 | # define EV_USE_POLL 1 |
282 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
218 | # endif |
283 | # endif |
219 | #endif |
284 | #endif |
220 | |
285 | |
221 | #ifndef EV_USE_EPOLL |
286 | #ifndef EV_USE_EPOLL |
222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
287 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
223 | # define EV_USE_EPOLL 1 |
288 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
224 | # else |
289 | # else |
225 | # define EV_USE_EPOLL 0 |
290 | # define EV_USE_EPOLL 0 |
226 | # endif |
291 | # endif |
227 | #endif |
292 | #endif |
228 | |
293 | |
… | |
… | |
234 | # define EV_USE_PORT 0 |
299 | # define EV_USE_PORT 0 |
235 | #endif |
300 | #endif |
236 | |
301 | |
237 | #ifndef EV_USE_INOTIFY |
302 | #ifndef EV_USE_INOTIFY |
238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
239 | # define EV_USE_INOTIFY 1 |
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
240 | # else |
305 | # else |
241 | # define EV_USE_INOTIFY 0 |
306 | # define EV_USE_INOTIFY 0 |
242 | # endif |
307 | # endif |
243 | #endif |
308 | #endif |
244 | |
309 | |
245 | #ifndef EV_PID_HASHSIZE |
310 | #ifndef EV_PID_HASHSIZE |
246 | # if EV_MINIMAL |
311 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
247 | # define EV_PID_HASHSIZE 1 |
|
|
248 | # else |
|
|
249 | # define EV_PID_HASHSIZE 16 |
|
|
250 | # endif |
|
|
251 | #endif |
312 | #endif |
252 | |
313 | |
253 | #ifndef EV_INOTIFY_HASHSIZE |
314 | #ifndef EV_INOTIFY_HASHSIZE |
254 | # if EV_MINIMAL |
315 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
255 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
256 | # else |
|
|
257 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
258 | # endif |
|
|
259 | #endif |
316 | #endif |
260 | |
317 | |
261 | #ifndef EV_USE_EVENTFD |
318 | #ifndef EV_USE_EVENTFD |
262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
263 | # define EV_USE_EVENTFD 1 |
320 | # define EV_USE_EVENTFD EV_FEATURE_OS |
264 | # else |
321 | # else |
265 | # define EV_USE_EVENTFD 0 |
322 | # define EV_USE_EVENTFD 0 |
|
|
323 | # endif |
|
|
324 | #endif |
|
|
325 | |
|
|
326 | #ifndef EV_USE_SIGNALFD |
|
|
327 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
328 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
329 | # else |
|
|
330 | # define EV_USE_SIGNALFD 0 |
266 | # endif |
331 | # endif |
267 | #endif |
332 | #endif |
268 | |
333 | |
269 | #if 0 /* debugging */ |
334 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
335 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
336 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
337 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
338 | #endif |
274 | |
339 | |
275 | #ifndef EV_VERIFY |
340 | #ifndef EV_VERIFY |
276 | # define EV_VERIFY !EV_MINIMAL |
341 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
277 | #endif |
342 | #endif |
278 | |
343 | |
279 | #ifndef EV_USE_4HEAP |
344 | #ifndef EV_USE_4HEAP |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
345 | # define EV_USE_4HEAP EV_FEATURE_DATA |
281 | #endif |
346 | #endif |
282 | |
347 | |
283 | #ifndef EV_HEAP_CACHE_AT |
348 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
350 | #endif |
|
|
351 | |
|
|
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
353 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
354 | #if EV_USE_CLOCK_SYSCALL |
|
|
355 | # include <syscall.h> |
|
|
356 | # ifdef SYS_clock_gettime |
|
|
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
358 | # undef EV_USE_MONOTONIC |
|
|
359 | # define EV_USE_MONOTONIC 1 |
|
|
360 | # else |
|
|
361 | # undef EV_USE_CLOCK_SYSCALL |
|
|
362 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
363 | # endif |
285 | #endif |
364 | #endif |
286 | |
365 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
367 | |
|
|
368 | #ifdef _AIX |
|
|
369 | /* AIX has a completely broken poll.h header */ |
|
|
370 | # undef EV_USE_POLL |
|
|
371 | # define EV_USE_POLL 0 |
|
|
372 | #endif |
288 | |
373 | |
289 | #ifndef CLOCK_MONOTONIC |
374 | #ifndef CLOCK_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
291 | # define EV_USE_MONOTONIC 0 |
376 | # define EV_USE_MONOTONIC 0 |
292 | #endif |
377 | #endif |
… | |
… | |
300 | # undef EV_USE_INOTIFY |
385 | # undef EV_USE_INOTIFY |
301 | # define EV_USE_INOTIFY 0 |
386 | # define EV_USE_INOTIFY 0 |
302 | #endif |
387 | #endif |
303 | |
388 | |
304 | #if !EV_USE_NANOSLEEP |
389 | #if !EV_USE_NANOSLEEP |
305 | # ifndef _WIN32 |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
391 | # if !defined(_WIN32) && !defined(__hpux) |
306 | # include <sys/select.h> |
392 | # include <sys/select.h> |
307 | # endif |
393 | # endif |
308 | #endif |
394 | #endif |
309 | |
395 | |
310 | #if EV_USE_INOTIFY |
396 | #if EV_USE_INOTIFY |
311 | # include <sys/utsname.h> |
|
|
312 | # include <sys/statfs.h> |
397 | # include <sys/statfs.h> |
313 | # include <sys/inotify.h> |
398 | # include <sys/inotify.h> |
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
315 | # ifndef IN_DONT_FOLLOW |
400 | # ifndef IN_DONT_FOLLOW |
316 | # undef EV_USE_INOTIFY |
401 | # undef EV_USE_INOTIFY |
… | |
… | |
320 | |
405 | |
321 | #if EV_SELECT_IS_WINSOCKET |
406 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
407 | # include <winsock.h> |
323 | #endif |
408 | #endif |
324 | |
409 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
410 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
336 | # include <stdint.h> |
412 | # include <stdint.h> |
337 | # ifdef __cplusplus |
413 | # ifndef EFD_NONBLOCK |
338 | extern "C" { |
414 | # define EFD_NONBLOCK O_NONBLOCK |
339 | # endif |
415 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
416 | # ifndef EFD_CLOEXEC |
341 | # ifdef __cplusplus |
417 | # ifdef O_CLOEXEC |
342 | } |
418 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
419 | # else |
|
|
420 | # define EFD_CLOEXEC 02000000 |
|
|
421 | # endif |
343 | # endif |
422 | # endif |
|
|
423 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
424 | #endif |
|
|
425 | |
|
|
426 | #if EV_USE_SIGNALFD |
|
|
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
428 | # include <stdint.h> |
|
|
429 | # ifndef SFD_NONBLOCK |
|
|
430 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
431 | # endif |
|
|
432 | # ifndef SFD_CLOEXEC |
|
|
433 | # ifdef O_CLOEXEC |
|
|
434 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
435 | # else |
|
|
436 | # define SFD_CLOEXEC 02000000 |
|
|
437 | # endif |
|
|
438 | # endif |
|
|
439 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
440 | |
|
|
441 | struct signalfd_siginfo |
|
|
442 | { |
|
|
443 | uint32_t ssi_signo; |
|
|
444 | char pad[128 - sizeof (uint32_t)]; |
|
|
445 | }; |
344 | #endif |
446 | #endif |
345 | |
447 | |
346 | /**/ |
448 | /**/ |
347 | |
449 | |
348 | #if EV_VERIFY >= 3 |
450 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
350 | #else |
452 | #else |
351 | # define EV_FREQUENT_CHECK do { } while (0) |
453 | # define EV_FREQUENT_CHECK do { } while (0) |
352 | #endif |
454 | #endif |
353 | |
455 | |
354 | /* |
456 | /* |
355 | * This is used to avoid floating point rounding problems. |
457 | * This is used to work around floating point rounding problems. |
356 | * It is added to ev_rt_now when scheduling periodics |
|
|
357 | * to ensure progress, time-wise, even when rounding |
|
|
358 | * errors are against us. |
|
|
359 | * This value is good at least till the year 4000. |
458 | * This value is good at least till the year 4000. |
360 | * Better solutions welcome. |
|
|
361 | */ |
459 | */ |
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
460 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
461 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
363 | |
462 | |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
463 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
367 | |
465 | |
|
|
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
468 | |
|
|
469 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
470 | /* ECB.H BEGIN */ |
|
|
471 | /* |
|
|
472 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
473 | * |
|
|
474 | * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
475 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
476 | * All rights reserved. |
|
|
477 | * |
|
|
478 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
479 | * tion, are permitted provided that the following conditions are met: |
|
|
480 | * |
|
|
481 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
482 | * this list of conditions and the following disclaimer. |
|
|
483 | * |
|
|
484 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
485 | * notice, this list of conditions and the following disclaimer in the |
|
|
486 | * documentation and/or other materials provided with the distribution. |
|
|
487 | * |
|
|
488 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
489 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
490 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
491 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
492 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
493 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
494 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
495 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
496 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
497 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
498 | */ |
|
|
499 | |
|
|
500 | #ifndef ECB_H |
|
|
501 | #define ECB_H |
|
|
502 | |
|
|
503 | #ifdef _WIN32 |
|
|
504 | typedef signed char int8_t; |
|
|
505 | typedef unsigned char uint8_t; |
|
|
506 | typedef signed short int16_t; |
|
|
507 | typedef unsigned short uint16_t; |
|
|
508 | typedef signed int int32_t; |
|
|
509 | typedef unsigned int uint32_t; |
368 | #if __GNUC__ >= 4 |
510 | #if __GNUC__ |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
511 | typedef signed long long int64_t; |
370 | # define noinline __attribute__ ((noinline)) |
512 | typedef unsigned long long uint64_t; |
|
|
513 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
514 | typedef signed __int64 int64_t; |
|
|
515 | typedef unsigned __int64 uint64_t; |
|
|
516 | #endif |
371 | #else |
517 | #else |
372 | # define expect(expr,value) (expr) |
518 | #include <inttypes.h> |
373 | # define noinline |
|
|
374 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
375 | # define inline |
|
|
376 | # endif |
519 | #endif |
|
|
520 | |
|
|
521 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
522 | * what their idiot authors think are the "more important" extensions, |
|
|
523 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
524 | * or so. |
|
|
525 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
526 | * an issue with that they should have done it right in the first place. |
|
|
527 | */ |
|
|
528 | #ifndef ECB_GCC_VERSION |
|
|
529 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
|
530 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
531 | #else |
|
|
532 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
377 | #endif |
533 | #endif |
|
|
534 | #endif |
378 | |
535 | |
|
|
536 | /*****************************************************************************/ |
|
|
537 | |
|
|
538 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
539 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
540 | |
|
|
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
542 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
543 | #endif |
|
|
544 | |
|
|
545 | #ifndef ECB_MEMORY_FENCE |
|
|
546 | #if ECB_GCC_VERSION(2,5) |
|
|
547 | #if __x86 |
|
|
548 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
549 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
550 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
551 | #elif __amd64 |
|
|
552 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
553 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
554 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
555 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
556 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
557 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
|
|
558 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
|
|
559 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,4" : : "r" (0) : "memory") |
|
|
560 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
|
|
561 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
|
|
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dsb" : : : "memory") |
|
|
563 | #endif |
|
|
564 | #endif |
|
|
565 | #endif |
|
|
566 | |
|
|
567 | #ifndef ECB_MEMORY_FENCE |
|
|
568 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) |
|
|
569 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
570 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
571 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
572 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
573 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
574 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
575 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
576 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
577 | #elif defined(_WIN32) |
|
|
578 | #include <WinNT.h> |
|
|
579 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
580 | #endif |
|
|
581 | #endif |
|
|
582 | |
|
|
583 | #ifndef ECB_MEMORY_FENCE |
|
|
584 | #if !ECB_AVOID_PTHREADS |
|
|
585 | /* |
|
|
586 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
587 | * or failure to find pthread.h, then you should implement |
|
|
588 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
589 | * OR provide pthread.h and link against the posix thread library |
|
|
590 | * of your system. |
|
|
591 | */ |
|
|
592 | #include <pthread.h> |
|
|
593 | #define ECB_NEEDS_PTHREADS 1 |
|
|
594 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
595 | |
|
|
596 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
597 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
598 | #endif |
|
|
599 | #endif |
|
|
600 | |
|
|
601 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
602 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
603 | #endif |
|
|
604 | |
|
|
605 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
606 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
607 | #endif |
|
|
608 | |
|
|
609 | /*****************************************************************************/ |
|
|
610 | |
|
|
611 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
612 | |
|
|
613 | #if __cplusplus |
|
|
614 | #define ecb_inline static inline |
|
|
615 | #elif ECB_GCC_VERSION(2,5) |
|
|
616 | #define ecb_inline static __inline__ |
|
|
617 | #elif ECB_C99 |
|
|
618 | #define ecb_inline static inline |
|
|
619 | #else |
|
|
620 | #define ecb_inline static |
|
|
621 | #endif |
|
|
622 | |
|
|
623 | #if ECB_GCC_VERSION(3,3) |
|
|
624 | #define ecb_restrict __restrict__ |
|
|
625 | #elif ECB_C99 |
|
|
626 | #define ecb_restrict restrict |
|
|
627 | #else |
|
|
628 | #define ecb_restrict |
|
|
629 | #endif |
|
|
630 | |
|
|
631 | typedef int ecb_bool; |
|
|
632 | |
|
|
633 | #define ECB_CONCAT_(a, b) a ## b |
|
|
634 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
635 | #define ECB_STRINGIFY_(a) # a |
|
|
636 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
637 | |
|
|
638 | #define ecb_function_ ecb_inline |
|
|
639 | |
|
|
640 | #if ECB_GCC_VERSION(3,1) |
|
|
641 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
642 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
643 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
644 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
645 | #else |
|
|
646 | #define ecb_attribute(attrlist) |
|
|
647 | #define ecb_is_constant(expr) 0 |
|
|
648 | #define ecb_expect(expr,value) (expr) |
|
|
649 | #define ecb_prefetch(addr,rw,locality) |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | /* no emulation for ecb_decltype */ |
|
|
653 | #if ECB_GCC_VERSION(4,5) |
|
|
654 | #define ecb_decltype(x) __decltype(x) |
|
|
655 | #elif ECB_GCC_VERSION(3,0) |
|
|
656 | #define ecb_decltype(x) __typeof(x) |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
660 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
661 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
662 | #define ecb_const ecb_attribute ((__const__)) |
|
|
663 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
664 | |
|
|
665 | #if ECB_GCC_VERSION(4,3) |
|
|
666 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
667 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
668 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
669 | #else |
|
|
670 | #define ecb_artificial |
|
|
671 | #define ecb_hot |
|
|
672 | #define ecb_cold |
|
|
673 | #endif |
|
|
674 | |
|
|
675 | /* put around conditional expressions if you are very sure that the */ |
|
|
676 | /* expression is mostly true or mostly false. note that these return */ |
|
|
677 | /* booleans, not the expression. */ |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
678 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
380 | #define expect_true(expr) expect ((expr) != 0, 1) |
679 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
680 | /* for compatibility to the rest of the world */ |
|
|
681 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
682 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
683 | |
|
|
684 | /* count trailing zero bits and count # of one bits */ |
|
|
685 | #if ECB_GCC_VERSION(3,4) |
|
|
686 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
687 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
688 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
689 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
690 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
691 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
692 | /* no popcountll */ |
|
|
693 | #else |
|
|
694 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
695 | ecb_function_ int |
|
|
696 | ecb_ctz32 (uint32_t x) |
|
|
697 | { |
|
|
698 | int r = 0; |
|
|
699 | |
|
|
700 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
701 | |
|
|
702 | #if ECB_branchless_on_i386 |
|
|
703 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
704 | r += !!(x & 0xcccccccc) << 1; |
|
|
705 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
706 | r += !!(x & 0xff00ff00) << 3; |
|
|
707 | r += !!(x & 0xffff0000) << 4; |
|
|
708 | #else |
|
|
709 | if (x & 0xaaaaaaaa) r += 1; |
|
|
710 | if (x & 0xcccccccc) r += 2; |
|
|
711 | if (x & 0xf0f0f0f0) r += 4; |
|
|
712 | if (x & 0xff00ff00) r += 8; |
|
|
713 | if (x & 0xffff0000) r += 16; |
|
|
714 | #endif |
|
|
715 | |
|
|
716 | return r; |
|
|
717 | } |
|
|
718 | |
|
|
719 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
720 | ecb_function_ int |
|
|
721 | ecb_ctz64 (uint64_t x) |
|
|
722 | { |
|
|
723 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
724 | return ecb_ctz32 (x >> shift) + shift; |
|
|
725 | } |
|
|
726 | |
|
|
727 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
728 | ecb_function_ int |
|
|
729 | ecb_popcount32 (uint32_t x) |
|
|
730 | { |
|
|
731 | x -= (x >> 1) & 0x55555555; |
|
|
732 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
733 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
734 | x *= 0x01010101; |
|
|
735 | |
|
|
736 | return x >> 24; |
|
|
737 | } |
|
|
738 | |
|
|
739 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
740 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
741 | { |
|
|
742 | int r = 0; |
|
|
743 | |
|
|
744 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
745 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
746 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
747 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
748 | if (x >> 1) { r += 1; } |
|
|
749 | |
|
|
750 | return r; |
|
|
751 | } |
|
|
752 | |
|
|
753 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
754 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
755 | { |
|
|
756 | int r = 0; |
|
|
757 | |
|
|
758 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
759 | |
|
|
760 | return r + ecb_ld32 (x); |
|
|
761 | } |
|
|
762 | #endif |
|
|
763 | |
|
|
764 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
765 | /* so for this version we are lazy */ |
|
|
766 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
767 | ecb_function_ int |
|
|
768 | ecb_popcount64 (uint64_t x) |
|
|
769 | { |
|
|
770 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
771 | } |
|
|
772 | |
|
|
773 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
774 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
775 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
776 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
777 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
778 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
779 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
780 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
781 | |
|
|
782 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
783 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
784 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
785 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
786 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
787 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
788 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
789 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
790 | |
|
|
791 | #if ECB_GCC_VERSION(4,3) |
|
|
792 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
793 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
794 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
795 | #else |
|
|
796 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
797 | ecb_function_ uint16_t |
|
|
798 | ecb_bswap16 (uint16_t x) |
|
|
799 | { |
|
|
800 | return ecb_rotl16 (x, 8); |
|
|
801 | } |
|
|
802 | |
|
|
803 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
804 | ecb_function_ uint32_t |
|
|
805 | ecb_bswap32 (uint32_t x) |
|
|
806 | { |
|
|
807 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
808 | } |
|
|
809 | |
|
|
810 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
811 | ecb_function_ uint64_t |
|
|
812 | ecb_bswap64 (uint64_t x) |
|
|
813 | { |
|
|
814 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
815 | } |
|
|
816 | #endif |
|
|
817 | |
|
|
818 | #if ECB_GCC_VERSION(4,5) |
|
|
819 | #define ecb_unreachable() __builtin_unreachable () |
|
|
820 | #else |
|
|
821 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
822 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
|
|
823 | ecb_function_ void ecb_unreachable (void) { } |
|
|
824 | #endif |
|
|
825 | |
|
|
826 | /* try to tell the compiler that some condition is definitely true */ |
|
|
827 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
828 | |
|
|
829 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
830 | ecb_function_ unsigned char |
|
|
831 | ecb_byteorder_helper (void) |
|
|
832 | { |
|
|
833 | const uint32_t u = 0x11223344; |
|
|
834 | return *(unsigned char *)&u; |
|
|
835 | } |
|
|
836 | |
|
|
837 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
|
|
838 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
839 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
|
|
840 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
841 | |
|
|
842 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
843 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
844 | #else |
|
|
845 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
846 | #endif |
|
|
847 | |
|
|
848 | #if ecb_cplusplus_does_not_suck |
|
|
849 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
850 | template<typename T, int N> |
|
|
851 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
852 | { |
|
|
853 | return N; |
|
|
854 | } |
|
|
855 | #else |
|
|
856 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | #endif |
|
|
860 | |
|
|
861 | /* ECB.H END */ |
|
|
862 | |
|
|
863 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
864 | # undef ECB_MEMORY_FENCE |
|
|
865 | # undef ECB_MEMORY_FENCE_ACQUIRE |
|
|
866 | # undef ECB_MEMORY_FENCE_RELEASE |
|
|
867 | #endif |
|
|
868 | |
|
|
869 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
870 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
871 | #define noinline ecb_noinline |
|
|
872 | |
381 | #define inline_size static inline |
873 | #define inline_size ecb_inline |
382 | |
874 | |
383 | #if EV_MINIMAL |
875 | #if EV_FEATURE_CODE |
|
|
876 | # define inline_speed ecb_inline |
|
|
877 | #else |
384 | # define inline_speed static noinline |
878 | # define inline_speed static noinline |
|
|
879 | #endif |
|
|
880 | |
|
|
881 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
882 | |
|
|
883 | #if EV_MINPRI == EV_MAXPRI |
|
|
884 | # define ABSPRI(w) (((W)w), 0) |
385 | #else |
885 | #else |
386 | # define inline_speed static inline |
|
|
387 | #endif |
|
|
388 | |
|
|
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
886 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
887 | #endif |
391 | |
888 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
889 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
890 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
891 | |
395 | typedef ev_watcher *W; |
892 | typedef ev_watcher *W; |
… | |
… | |
399 | #define ev_active(w) ((W)(w))->active |
896 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
897 | #define ev_at(w) ((WT)(w))->at |
401 | |
898 | |
402 | #if EV_USE_REALTIME |
899 | #if EV_USE_REALTIME |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
900 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
901 | /* giving it a reasonably high chance of working on typical architectures */ |
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
902 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
406 | #endif |
903 | #endif |
407 | |
904 | |
408 | #if EV_USE_MONOTONIC |
905 | #if EV_USE_MONOTONIC |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
906 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
410 | #endif |
907 | #endif |
411 | |
908 | |
|
|
909 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
910 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
911 | #endif |
|
|
912 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
913 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
914 | #endif |
|
|
915 | #ifndef EV_WIN32_CLOSE_FD |
|
|
916 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
917 | #endif |
|
|
918 | |
412 | #ifdef _WIN32 |
919 | #ifdef _WIN32 |
413 | # include "ev_win32.c" |
920 | # include "ev_win32.c" |
414 | #endif |
921 | #endif |
415 | |
922 | |
416 | /*****************************************************************************/ |
923 | /*****************************************************************************/ |
417 | |
924 | |
|
|
925 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
926 | |
|
|
927 | #if EV_USE_FLOOR |
|
|
928 | # include <math.h> |
|
|
929 | # define ev_floor(v) floor (v) |
|
|
930 | #else |
|
|
931 | |
|
|
932 | #include <float.h> |
|
|
933 | |
|
|
934 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
935 | static ev_tstamp noinline |
|
|
936 | ev_floor (ev_tstamp v) |
|
|
937 | { |
|
|
938 | /* the choice of shift factor is not terribly important */ |
|
|
939 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
940 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
941 | #else |
|
|
942 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
943 | #endif |
|
|
944 | |
|
|
945 | /* argument too large for an unsigned long? */ |
|
|
946 | if (expect_false (v >= shift)) |
|
|
947 | { |
|
|
948 | ev_tstamp f; |
|
|
949 | |
|
|
950 | if (v == v - 1.) |
|
|
951 | return v; /* very large number */ |
|
|
952 | |
|
|
953 | f = shift * ev_floor (v * (1. / shift)); |
|
|
954 | return f + ev_floor (v - f); |
|
|
955 | } |
|
|
956 | |
|
|
957 | /* special treatment for negative args? */ |
|
|
958 | if (expect_false (v < 0.)) |
|
|
959 | { |
|
|
960 | ev_tstamp f = -ev_floor (-v); |
|
|
961 | |
|
|
962 | return f - (f == v ? 0 : 1); |
|
|
963 | } |
|
|
964 | |
|
|
965 | /* fits into an unsigned long */ |
|
|
966 | return (unsigned long)v; |
|
|
967 | } |
|
|
968 | |
|
|
969 | #endif |
|
|
970 | |
|
|
971 | /*****************************************************************************/ |
|
|
972 | |
|
|
973 | #ifdef __linux |
|
|
974 | # include <sys/utsname.h> |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | static unsigned int noinline ecb_cold |
|
|
978 | ev_linux_version (void) |
|
|
979 | { |
|
|
980 | #ifdef __linux |
|
|
981 | unsigned int v = 0; |
|
|
982 | struct utsname buf; |
|
|
983 | int i; |
|
|
984 | char *p = buf.release; |
|
|
985 | |
|
|
986 | if (uname (&buf)) |
|
|
987 | return 0; |
|
|
988 | |
|
|
989 | for (i = 3+1; --i; ) |
|
|
990 | { |
|
|
991 | unsigned int c = 0; |
|
|
992 | |
|
|
993 | for (;;) |
|
|
994 | { |
|
|
995 | if (*p >= '0' && *p <= '9') |
|
|
996 | c = c * 10 + *p++ - '0'; |
|
|
997 | else |
|
|
998 | { |
|
|
999 | p += *p == '.'; |
|
|
1000 | break; |
|
|
1001 | } |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | v = (v << 8) | c; |
|
|
1005 | } |
|
|
1006 | |
|
|
1007 | return v; |
|
|
1008 | #else |
|
|
1009 | return 0; |
|
|
1010 | #endif |
|
|
1011 | } |
|
|
1012 | |
|
|
1013 | /*****************************************************************************/ |
|
|
1014 | |
|
|
1015 | #if EV_AVOID_STDIO |
|
|
1016 | static void noinline ecb_cold |
|
|
1017 | ev_printerr (const char *msg) |
|
|
1018 | { |
|
|
1019 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1020 | } |
|
|
1021 | #endif |
|
|
1022 | |
418 | static void (*syserr_cb)(const char *msg); |
1023 | static void (*syserr_cb)(const char *msg); |
419 | |
1024 | |
420 | void |
1025 | void ecb_cold |
421 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1026 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
422 | { |
1027 | { |
423 | syserr_cb = cb; |
1028 | syserr_cb = cb; |
424 | } |
1029 | } |
425 | |
1030 | |
426 | static void noinline |
1031 | static void noinline ecb_cold |
427 | ev_syserr (const char *msg) |
1032 | ev_syserr (const char *msg) |
428 | { |
1033 | { |
429 | if (!msg) |
1034 | if (!msg) |
430 | msg = "(libev) system error"; |
1035 | msg = "(libev) system error"; |
431 | |
1036 | |
432 | if (syserr_cb) |
1037 | if (syserr_cb) |
433 | syserr_cb (msg); |
1038 | syserr_cb (msg); |
434 | else |
1039 | else |
435 | { |
1040 | { |
|
|
1041 | #if EV_AVOID_STDIO |
|
|
1042 | ev_printerr (msg); |
|
|
1043 | ev_printerr (": "); |
|
|
1044 | ev_printerr (strerror (errno)); |
|
|
1045 | ev_printerr ("\n"); |
|
|
1046 | #else |
436 | perror (msg); |
1047 | perror (msg); |
|
|
1048 | #endif |
437 | abort (); |
1049 | abort (); |
438 | } |
1050 | } |
439 | } |
1051 | } |
440 | |
1052 | |
441 | static void * |
1053 | static void * |
442 | ev_realloc_emul (void *ptr, long size) |
1054 | ev_realloc_emul (void *ptr, long size) |
443 | { |
1055 | { |
|
|
1056 | #if __GLIBC__ |
|
|
1057 | return realloc (ptr, size); |
|
|
1058 | #else |
444 | /* some systems, notably openbsd and darwin, fail to properly |
1059 | /* some systems, notably openbsd and darwin, fail to properly |
445 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1060 | * implement realloc (x, 0) (as required by both ansi c-89 and |
446 | * the single unix specification, so work around them here. |
1061 | * the single unix specification, so work around them here. |
447 | */ |
1062 | */ |
448 | |
1063 | |
449 | if (size) |
1064 | if (size) |
450 | return realloc (ptr, size); |
1065 | return realloc (ptr, size); |
451 | |
1066 | |
452 | free (ptr); |
1067 | free (ptr); |
453 | return 0; |
1068 | return 0; |
|
|
1069 | #endif |
454 | } |
1070 | } |
455 | |
1071 | |
456 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1072 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
457 | |
1073 | |
458 | void |
1074 | void ecb_cold |
459 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1075 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
460 | { |
1076 | { |
461 | alloc = cb; |
1077 | alloc = cb; |
462 | } |
1078 | } |
463 | |
1079 | |
… | |
… | |
466 | { |
1082 | { |
467 | ptr = alloc (ptr, size); |
1083 | ptr = alloc (ptr, size); |
468 | |
1084 | |
469 | if (!ptr && size) |
1085 | if (!ptr && size) |
470 | { |
1086 | { |
|
|
1087 | #if EV_AVOID_STDIO |
|
|
1088 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1089 | #else |
471 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1090 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1091 | #endif |
472 | abort (); |
1092 | abort (); |
473 | } |
1093 | } |
474 | |
1094 | |
475 | return ptr; |
1095 | return ptr; |
476 | } |
1096 | } |
… | |
… | |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
1098 | #define ev_malloc(size) ev_realloc (0, (size)) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1099 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
480 | |
1100 | |
481 | /*****************************************************************************/ |
1101 | /*****************************************************************************/ |
482 | |
1102 | |
|
|
1103 | /* set in reify when reification needed */ |
|
|
1104 | #define EV_ANFD_REIFY 1 |
|
|
1105 | |
|
|
1106 | /* file descriptor info structure */ |
483 | typedef struct |
1107 | typedef struct |
484 | { |
1108 | { |
485 | WL head; |
1109 | WL head; |
486 | unsigned char events; |
1110 | unsigned char events; /* the events watched for */ |
487 | unsigned char reify; |
1111 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1112 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
489 | unsigned char unused; |
1113 | unsigned char unused; |
490 | #if EV_USE_EPOLL |
1114 | #if EV_USE_EPOLL |
491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1115 | unsigned int egen; /* generation counter to counter epoll bugs */ |
492 | #endif |
1116 | #endif |
493 | #if EV_SELECT_IS_WINSOCKET |
1117 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
494 | SOCKET handle; |
1118 | SOCKET handle; |
495 | #endif |
1119 | #endif |
|
|
1120 | #if EV_USE_IOCP |
|
|
1121 | OVERLAPPED or, ow; |
|
|
1122 | #endif |
496 | } ANFD; |
1123 | } ANFD; |
497 | |
1124 | |
|
|
1125 | /* stores the pending event set for a given watcher */ |
498 | typedef struct |
1126 | typedef struct |
499 | { |
1127 | { |
500 | W w; |
1128 | W w; |
501 | int events; |
1129 | int events; /* the pending event set for the given watcher */ |
502 | } ANPENDING; |
1130 | } ANPENDING; |
503 | |
1131 | |
504 | #if EV_USE_INOTIFY |
1132 | #if EV_USE_INOTIFY |
505 | /* hash table entry per inotify-id */ |
1133 | /* hash table entry per inotify-id */ |
506 | typedef struct |
1134 | typedef struct |
… | |
… | |
509 | } ANFS; |
1137 | } ANFS; |
510 | #endif |
1138 | #endif |
511 | |
1139 | |
512 | /* Heap Entry */ |
1140 | /* Heap Entry */ |
513 | #if EV_HEAP_CACHE_AT |
1141 | #if EV_HEAP_CACHE_AT |
|
|
1142 | /* a heap element */ |
514 | typedef struct { |
1143 | typedef struct { |
515 | ev_tstamp at; |
1144 | ev_tstamp at; |
516 | WT w; |
1145 | WT w; |
517 | } ANHE; |
1146 | } ANHE; |
518 | |
1147 | |
519 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
1148 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
520 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
1149 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
521 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
1150 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
522 | #else |
1151 | #else |
|
|
1152 | /* a heap element */ |
523 | typedef WT ANHE; |
1153 | typedef WT ANHE; |
524 | |
1154 | |
525 | #define ANHE_w(he) (he) |
1155 | #define ANHE_w(he) (he) |
526 | #define ANHE_at(he) (he)->at |
1156 | #define ANHE_at(he) (he)->at |
527 | #define ANHE_at_cache(he) |
1157 | #define ANHE_at_cache(he) |
… | |
… | |
551 | |
1181 | |
552 | static int ev_default_loop_ptr; |
1182 | static int ev_default_loop_ptr; |
553 | |
1183 | |
554 | #endif |
1184 | #endif |
555 | |
1185 | |
|
|
1186 | #if EV_FEATURE_API |
|
|
1187 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1188 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1189 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1190 | #else |
|
|
1191 | # define EV_RELEASE_CB (void)0 |
|
|
1192 | # define EV_ACQUIRE_CB (void)0 |
|
|
1193 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1194 | #endif |
|
|
1195 | |
|
|
1196 | #define EVBREAK_RECURSE 0x80 |
|
|
1197 | |
556 | /*****************************************************************************/ |
1198 | /*****************************************************************************/ |
557 | |
1199 | |
|
|
1200 | #ifndef EV_HAVE_EV_TIME |
558 | ev_tstamp |
1201 | ev_tstamp |
559 | ev_time (void) |
1202 | ev_time (void) |
560 | { |
1203 | { |
561 | #if EV_USE_REALTIME |
1204 | #if EV_USE_REALTIME |
562 | if (expect_true (have_realtime)) |
1205 | if (expect_true (have_realtime)) |
… | |
… | |
569 | |
1212 | |
570 | struct timeval tv; |
1213 | struct timeval tv; |
571 | gettimeofday (&tv, 0); |
1214 | gettimeofday (&tv, 0); |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1215 | return tv.tv_sec + tv.tv_usec * 1e-6; |
573 | } |
1216 | } |
|
|
1217 | #endif |
574 | |
1218 | |
575 | inline_size ev_tstamp |
1219 | inline_size ev_tstamp |
576 | get_clock (void) |
1220 | get_clock (void) |
577 | { |
1221 | { |
578 | #if EV_USE_MONOTONIC |
1222 | #if EV_USE_MONOTONIC |
… | |
… | |
601 | if (delay > 0.) |
1245 | if (delay > 0.) |
602 | { |
1246 | { |
603 | #if EV_USE_NANOSLEEP |
1247 | #if EV_USE_NANOSLEEP |
604 | struct timespec ts; |
1248 | struct timespec ts; |
605 | |
1249 | |
606 | ts.tv_sec = (time_t)delay; |
1250 | EV_TS_SET (ts, delay); |
607 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
608 | |
|
|
609 | nanosleep (&ts, 0); |
1251 | nanosleep (&ts, 0); |
610 | #elif defined(_WIN32) |
1252 | #elif defined(_WIN32) |
611 | Sleep ((unsigned long)(delay * 1e3)); |
1253 | Sleep ((unsigned long)(delay * 1e3)); |
612 | #else |
1254 | #else |
613 | struct timeval tv; |
1255 | struct timeval tv; |
614 | |
1256 | |
615 | tv.tv_sec = (time_t)delay; |
|
|
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
617 | |
|
|
618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1257 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
1258 | /* something not guaranteed by newer posix versions, but guaranteed */ |
620 | /* by older ones */ |
1259 | /* by older ones */ |
|
|
1260 | EV_TV_SET (tv, delay); |
621 | select (0, 0, 0, 0, &tv); |
1261 | select (0, 0, 0, 0, &tv); |
622 | #endif |
1262 | #endif |
623 | } |
1263 | } |
624 | } |
1264 | } |
625 | |
1265 | |
626 | /*****************************************************************************/ |
1266 | /*****************************************************************************/ |
627 | |
1267 | |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1268 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
629 | |
1269 | |
|
|
1270 | /* find a suitable new size for the given array, */ |
|
|
1271 | /* hopefully by rounding to a nice-to-malloc size */ |
630 | inline_size int |
1272 | inline_size int |
631 | array_nextsize (int elem, int cur, int cnt) |
1273 | array_nextsize (int elem, int cur, int cnt) |
632 | { |
1274 | { |
633 | int ncur = cur + 1; |
1275 | int ncur = cur + 1; |
634 | |
1276 | |
… | |
… | |
646 | } |
1288 | } |
647 | |
1289 | |
648 | return ncur; |
1290 | return ncur; |
649 | } |
1291 | } |
650 | |
1292 | |
651 | static noinline void * |
1293 | static void * noinline ecb_cold |
652 | array_realloc (int elem, void *base, int *cur, int cnt) |
1294 | array_realloc (int elem, void *base, int *cur, int cnt) |
653 | { |
1295 | { |
654 | *cur = array_nextsize (elem, *cur, cnt); |
1296 | *cur = array_nextsize (elem, *cur, cnt); |
655 | return ev_realloc (base, elem * *cur); |
1297 | return ev_realloc (base, elem * *cur); |
656 | } |
1298 | } |
… | |
… | |
659 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1301 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
660 | |
1302 | |
661 | #define array_needsize(type,base,cur,cnt,init) \ |
1303 | #define array_needsize(type,base,cur,cnt,init) \ |
662 | if (expect_false ((cnt) > (cur))) \ |
1304 | if (expect_false ((cnt) > (cur))) \ |
663 | { \ |
1305 | { \ |
664 | int ocur_ = (cur); \ |
1306 | int ecb_unused ocur_ = (cur); \ |
665 | (base) = (type *)array_realloc \ |
1307 | (base) = (type *)array_realloc \ |
666 | (sizeof (type), (base), &(cur), (cnt)); \ |
1308 | (sizeof (type), (base), &(cur), (cnt)); \ |
667 | init ((base) + (ocur_), (cur) - ocur_); \ |
1309 | init ((base) + (ocur_), (cur) - ocur_); \ |
668 | } |
1310 | } |
669 | |
1311 | |
… | |
… | |
680 | #define array_free(stem, idx) \ |
1322 | #define array_free(stem, idx) \ |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1323 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
682 | |
1324 | |
683 | /*****************************************************************************/ |
1325 | /*****************************************************************************/ |
684 | |
1326 | |
|
|
1327 | /* dummy callback for pending events */ |
|
|
1328 | static void noinline |
|
|
1329 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1330 | { |
|
|
1331 | } |
|
|
1332 | |
685 | void noinline |
1333 | void noinline |
686 | ev_feed_event (EV_P_ void *w, int revents) |
1334 | ev_feed_event (EV_P_ void *w, int revents) |
687 | { |
1335 | { |
688 | W w_ = (W)w; |
1336 | W w_ = (W)w; |
689 | int pri = ABSPRI (w_); |
1337 | int pri = ABSPRI (w_); |
… | |
… | |
724 | } |
1372 | } |
725 | |
1373 | |
726 | /*****************************************************************************/ |
1374 | /*****************************************************************************/ |
727 | |
1375 | |
728 | inline_speed void |
1376 | inline_speed void |
729 | fd_event (EV_P_ int fd, int revents) |
1377 | fd_event_nocheck (EV_P_ int fd, int revents) |
730 | { |
1378 | { |
731 | ANFD *anfd = anfds + fd; |
1379 | ANFD *anfd = anfds + fd; |
732 | ev_io *w; |
1380 | ev_io *w; |
733 | |
1381 | |
734 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1382 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
738 | if (ev) |
1386 | if (ev) |
739 | ev_feed_event (EV_A_ (W)w, ev); |
1387 | ev_feed_event (EV_A_ (W)w, ev); |
740 | } |
1388 | } |
741 | } |
1389 | } |
742 | |
1390 | |
|
|
1391 | /* do not submit kernel events for fds that have reify set */ |
|
|
1392 | /* because that means they changed while we were polling for new events */ |
|
|
1393 | inline_speed void |
|
|
1394 | fd_event (EV_P_ int fd, int revents) |
|
|
1395 | { |
|
|
1396 | ANFD *anfd = anfds + fd; |
|
|
1397 | |
|
|
1398 | if (expect_true (!anfd->reify)) |
|
|
1399 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1400 | } |
|
|
1401 | |
743 | void |
1402 | void |
744 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1403 | ev_feed_fd_event (EV_P_ int fd, int revents) |
745 | { |
1404 | { |
746 | if (fd >= 0 && fd < anfdmax) |
1405 | if (fd >= 0 && fd < anfdmax) |
747 | fd_event (EV_A_ fd, revents); |
1406 | fd_event_nocheck (EV_A_ fd, revents); |
748 | } |
1407 | } |
749 | |
1408 | |
|
|
1409 | /* make sure the external fd watch events are in-sync */ |
|
|
1410 | /* with the kernel/libev internal state */ |
750 | inline_size void |
1411 | inline_size void |
751 | fd_reify (EV_P) |
1412 | fd_reify (EV_P) |
752 | { |
1413 | { |
753 | int i; |
1414 | int i; |
|
|
1415 | |
|
|
1416 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1417 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1418 | { |
|
|
1419 | int fd = fdchanges [i]; |
|
|
1420 | ANFD *anfd = anfds + fd; |
|
|
1421 | |
|
|
1422 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1423 | { |
|
|
1424 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1425 | |
|
|
1426 | if (handle != anfd->handle) |
|
|
1427 | { |
|
|
1428 | unsigned long arg; |
|
|
1429 | |
|
|
1430 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1431 | |
|
|
1432 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1433 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1434 | anfd->events = 0; |
|
|
1435 | anfd->handle = handle; |
|
|
1436 | } |
|
|
1437 | } |
|
|
1438 | } |
|
|
1439 | #endif |
754 | |
1440 | |
755 | for (i = 0; i < fdchangecnt; ++i) |
1441 | for (i = 0; i < fdchangecnt; ++i) |
756 | { |
1442 | { |
757 | int fd = fdchanges [i]; |
1443 | int fd = fdchanges [i]; |
758 | ANFD *anfd = anfds + fd; |
1444 | ANFD *anfd = anfds + fd; |
759 | ev_io *w; |
1445 | ev_io *w; |
760 | |
1446 | |
761 | unsigned char events = 0; |
1447 | unsigned char o_events = anfd->events; |
|
|
1448 | unsigned char o_reify = anfd->reify; |
762 | |
1449 | |
763 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1450 | anfd->reify = 0; |
764 | events |= (unsigned char)w->events; |
|
|
765 | |
1451 | |
766 | #if EV_SELECT_IS_WINSOCKET |
1452 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
767 | if (events) |
|
|
768 | { |
1453 | { |
769 | unsigned long arg; |
1454 | anfd->events = 0; |
770 | #ifdef EV_FD_TO_WIN32_HANDLE |
1455 | |
771 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1456 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
772 | #else |
1457 | anfd->events |= (unsigned char)w->events; |
773 | anfd->handle = _get_osfhandle (fd); |
1458 | |
774 | #endif |
1459 | if (o_events != anfd->events) |
775 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1460 | o_reify = EV__IOFDSET; /* actually |= */ |
776 | } |
1461 | } |
777 | #endif |
|
|
778 | |
1462 | |
779 | { |
1463 | if (o_reify & EV__IOFDSET) |
780 | unsigned char o_events = anfd->events; |
|
|
781 | unsigned char o_reify = anfd->reify; |
|
|
782 | |
|
|
783 | anfd->reify = 0; |
|
|
784 | anfd->events = events; |
|
|
785 | |
|
|
786 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
787 | backend_modify (EV_A_ fd, o_events, events); |
1464 | backend_modify (EV_A_ fd, o_events, anfd->events); |
788 | } |
|
|
789 | } |
1465 | } |
790 | |
1466 | |
791 | fdchangecnt = 0; |
1467 | fdchangecnt = 0; |
792 | } |
1468 | } |
793 | |
1469 | |
|
|
1470 | /* something about the given fd changed */ |
794 | inline_size void |
1471 | inline_size void |
795 | fd_change (EV_P_ int fd, int flags) |
1472 | fd_change (EV_P_ int fd, int flags) |
796 | { |
1473 | { |
797 | unsigned char reify = anfds [fd].reify; |
1474 | unsigned char reify = anfds [fd].reify; |
798 | anfds [fd].reify |= flags; |
1475 | anfds [fd].reify |= flags; |
… | |
… | |
803 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1480 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
804 | fdchanges [fdchangecnt - 1] = fd; |
1481 | fdchanges [fdchangecnt - 1] = fd; |
805 | } |
1482 | } |
806 | } |
1483 | } |
807 | |
1484 | |
|
|
1485 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
808 | inline_speed void |
1486 | inline_speed void ecb_cold |
809 | fd_kill (EV_P_ int fd) |
1487 | fd_kill (EV_P_ int fd) |
810 | { |
1488 | { |
811 | ev_io *w; |
1489 | ev_io *w; |
812 | |
1490 | |
813 | while ((w = (ev_io *)anfds [fd].head)) |
1491 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
815 | ev_io_stop (EV_A_ w); |
1493 | ev_io_stop (EV_A_ w); |
816 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1494 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
817 | } |
1495 | } |
818 | } |
1496 | } |
819 | |
1497 | |
|
|
1498 | /* check whether the given fd is actually valid, for error recovery */ |
820 | inline_size int |
1499 | inline_size int ecb_cold |
821 | fd_valid (int fd) |
1500 | fd_valid (int fd) |
822 | { |
1501 | { |
823 | #ifdef _WIN32 |
1502 | #ifdef _WIN32 |
824 | return _get_osfhandle (fd) != -1; |
1503 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
825 | #else |
1504 | #else |
826 | return fcntl (fd, F_GETFD) != -1; |
1505 | return fcntl (fd, F_GETFD) != -1; |
827 | #endif |
1506 | #endif |
828 | } |
1507 | } |
829 | |
1508 | |
830 | /* called on EBADF to verify fds */ |
1509 | /* called on EBADF to verify fds */ |
831 | static void noinline |
1510 | static void noinline ecb_cold |
832 | fd_ebadf (EV_P) |
1511 | fd_ebadf (EV_P) |
833 | { |
1512 | { |
834 | int fd; |
1513 | int fd; |
835 | |
1514 | |
836 | for (fd = 0; fd < anfdmax; ++fd) |
1515 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
838 | if (!fd_valid (fd) && errno == EBADF) |
1517 | if (!fd_valid (fd) && errno == EBADF) |
839 | fd_kill (EV_A_ fd); |
1518 | fd_kill (EV_A_ fd); |
840 | } |
1519 | } |
841 | |
1520 | |
842 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1521 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
843 | static void noinline |
1522 | static void noinline ecb_cold |
844 | fd_enomem (EV_P) |
1523 | fd_enomem (EV_P) |
845 | { |
1524 | { |
846 | int fd; |
1525 | int fd; |
847 | |
1526 | |
848 | for (fd = anfdmax; fd--; ) |
1527 | for (fd = anfdmax; fd--; ) |
849 | if (anfds [fd].events) |
1528 | if (anfds [fd].events) |
850 | { |
1529 | { |
851 | fd_kill (EV_A_ fd); |
1530 | fd_kill (EV_A_ fd); |
852 | return; |
1531 | break; |
853 | } |
1532 | } |
854 | } |
1533 | } |
855 | |
1534 | |
856 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1535 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
857 | static void noinline |
1536 | static void noinline |
… | |
… | |
862 | for (fd = 0; fd < anfdmax; ++fd) |
1541 | for (fd = 0; fd < anfdmax; ++fd) |
863 | if (anfds [fd].events) |
1542 | if (anfds [fd].events) |
864 | { |
1543 | { |
865 | anfds [fd].events = 0; |
1544 | anfds [fd].events = 0; |
866 | anfds [fd].emask = 0; |
1545 | anfds [fd].emask = 0; |
867 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1546 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
868 | } |
1547 | } |
869 | } |
1548 | } |
870 | |
1549 | |
|
|
1550 | /* used to prepare libev internal fd's */ |
|
|
1551 | /* this is not fork-safe */ |
|
|
1552 | inline_speed void |
|
|
1553 | fd_intern (int fd) |
|
|
1554 | { |
|
|
1555 | #ifdef _WIN32 |
|
|
1556 | unsigned long arg = 1; |
|
|
1557 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1558 | #else |
|
|
1559 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1560 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1561 | #endif |
|
|
1562 | } |
|
|
1563 | |
871 | /*****************************************************************************/ |
1564 | /*****************************************************************************/ |
872 | |
1565 | |
873 | /* |
1566 | /* |
874 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1567 | * the heap functions want a real array index. array index 0 is guaranteed to not |
875 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1568 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
876 | * the branching factor of the d-tree. |
1569 | * the branching factor of the d-tree. |
877 | */ |
1570 | */ |
878 | |
1571 | |
879 | /* |
1572 | /* |
… | |
… | |
947 | |
1640 | |
948 | for (;;) |
1641 | for (;;) |
949 | { |
1642 | { |
950 | int c = k << 1; |
1643 | int c = k << 1; |
951 | |
1644 | |
952 | if (c > N + HEAP0 - 1) |
1645 | if (c >= N + HEAP0) |
953 | break; |
1646 | break; |
954 | |
1647 | |
955 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1648 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
956 | ? 1 : 0; |
1649 | ? 1 : 0; |
957 | |
1650 | |
… | |
… | |
989 | |
1682 | |
990 | heap [k] = he; |
1683 | heap [k] = he; |
991 | ev_active (ANHE_w (he)) = k; |
1684 | ev_active (ANHE_w (he)) = k; |
992 | } |
1685 | } |
993 | |
1686 | |
|
|
1687 | /* move an element suitably so it is in a correct place */ |
994 | inline_size void |
1688 | inline_size void |
995 | adjustheap (ANHE *heap, int N, int k) |
1689 | adjustheap (ANHE *heap, int N, int k) |
996 | { |
1690 | { |
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1691 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
998 | upheap (heap, k); |
1692 | upheap (heap, k); |
999 | else |
1693 | else |
1000 | downheap (heap, N, k); |
1694 | downheap (heap, N, k); |
1001 | } |
1695 | } |
1002 | |
1696 | |
… | |
… | |
1012 | upheap (heap, i + HEAP0); |
1706 | upheap (heap, i + HEAP0); |
1013 | } |
1707 | } |
1014 | |
1708 | |
1015 | /*****************************************************************************/ |
1709 | /*****************************************************************************/ |
1016 | |
1710 | |
|
|
1711 | /* associate signal watchers to a signal signal */ |
1017 | typedef struct |
1712 | typedef struct |
1018 | { |
1713 | { |
|
|
1714 | EV_ATOMIC_T pending; |
|
|
1715 | #if EV_MULTIPLICITY |
|
|
1716 | EV_P; |
|
|
1717 | #endif |
1019 | WL head; |
1718 | WL head; |
1020 | EV_ATOMIC_T gotsig; |
|
|
1021 | } ANSIG; |
1719 | } ANSIG; |
1022 | |
1720 | |
1023 | static ANSIG *signals; |
1721 | static ANSIG signals [EV_NSIG - 1]; |
1024 | static int signalmax; |
|
|
1025 | |
|
|
1026 | static EV_ATOMIC_T gotsig; |
|
|
1027 | |
1722 | |
1028 | /*****************************************************************************/ |
1723 | /*****************************************************************************/ |
1029 | |
1724 | |
1030 | inline_speed void |
1725 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1031 | fd_intern (int fd) |
|
|
1032 | { |
|
|
1033 | #ifdef _WIN32 |
|
|
1034 | unsigned long arg = 1; |
|
|
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1036 | #else |
|
|
1037 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1038 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1039 | #endif |
|
|
1040 | } |
|
|
1041 | |
1726 | |
1042 | static void noinline |
1727 | static void noinline ecb_cold |
1043 | evpipe_init (EV_P) |
1728 | evpipe_init (EV_P) |
1044 | { |
1729 | { |
1045 | if (!ev_is_active (&pipeev)) |
1730 | if (!ev_is_active (&pipe_w)) |
1046 | { |
1731 | { |
1047 | #if EV_USE_EVENTFD |
1732 | # if EV_USE_EVENTFD |
|
|
1733 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1734 | if (evfd < 0 && errno == EINVAL) |
1048 | if ((evfd = eventfd (0, 0)) >= 0) |
1735 | evfd = eventfd (0, 0); |
|
|
1736 | |
|
|
1737 | if (evfd >= 0) |
1049 | { |
1738 | { |
1050 | evpipe [0] = -1; |
1739 | evpipe [0] = -1; |
1051 | fd_intern (evfd); |
1740 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1052 | ev_io_set (&pipeev, evfd, EV_READ); |
1741 | ev_io_set (&pipe_w, evfd, EV_READ); |
1053 | } |
1742 | } |
1054 | else |
1743 | else |
1055 | #endif |
1744 | # endif |
1056 | { |
1745 | { |
1057 | while (pipe (evpipe)) |
1746 | while (pipe (evpipe)) |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
1747 | ev_syserr ("(libev) error creating signal/async pipe"); |
1059 | |
1748 | |
1060 | fd_intern (evpipe [0]); |
1749 | fd_intern (evpipe [0]); |
1061 | fd_intern (evpipe [1]); |
1750 | fd_intern (evpipe [1]); |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1751 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1063 | } |
1752 | } |
1064 | |
1753 | |
1065 | ev_io_start (EV_A_ &pipeev); |
1754 | ev_io_start (EV_A_ &pipe_w); |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1755 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1067 | } |
1756 | } |
1068 | } |
1757 | } |
1069 | |
1758 | |
1070 | inline_size void |
1759 | inline_speed void |
1071 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1760 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1072 | { |
1761 | { |
1073 | if (!*flag) |
1762 | if (expect_true (*flag)) |
|
|
1763 | return; |
|
|
1764 | |
|
|
1765 | *flag = 1; |
|
|
1766 | |
|
|
1767 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1768 | |
|
|
1769 | pipe_write_skipped = 1; |
|
|
1770 | |
|
|
1771 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1772 | |
|
|
1773 | if (pipe_write_wanted) |
1074 | { |
1774 | { |
|
|
1775 | int old_errno; |
|
|
1776 | |
|
|
1777 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1778 | |
1075 | int old_errno = errno; /* save errno because write might clobber it */ |
1779 | old_errno = errno; /* save errno because write will clobber it */ |
1076 | |
|
|
1077 | *flag = 1; |
|
|
1078 | |
1780 | |
1079 | #if EV_USE_EVENTFD |
1781 | #if EV_USE_EVENTFD |
1080 | if (evfd >= 0) |
1782 | if (evfd >= 0) |
1081 | { |
1783 | { |
1082 | uint64_t counter = 1; |
1784 | uint64_t counter = 1; |
1083 | write (evfd, &counter, sizeof (uint64_t)); |
1785 | write (evfd, &counter, sizeof (uint64_t)); |
1084 | } |
1786 | } |
1085 | else |
1787 | else |
1086 | #endif |
1788 | #endif |
|
|
1789 | { |
|
|
1790 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1791 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1792 | /* so when you think this write should be a send instead, please find out */ |
|
|
1793 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1794 | /* tell me. thank you. */ |
1087 | write (evpipe [1], &old_errno, 1); |
1795 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1796 | } |
1088 | |
1797 | |
1089 | errno = old_errno; |
1798 | errno = old_errno; |
1090 | } |
1799 | } |
1091 | } |
1800 | } |
1092 | |
1801 | |
|
|
1802 | /* called whenever the libev signal pipe */ |
|
|
1803 | /* got some events (signal, async) */ |
1093 | static void |
1804 | static void |
1094 | pipecb (EV_P_ ev_io *iow, int revents) |
1805 | pipecb (EV_P_ ev_io *iow, int revents) |
1095 | { |
1806 | { |
|
|
1807 | int i; |
|
|
1808 | |
|
|
1809 | if (revents & EV_READ) |
|
|
1810 | { |
1096 | #if EV_USE_EVENTFD |
1811 | #if EV_USE_EVENTFD |
1097 | if (evfd >= 0) |
1812 | if (evfd >= 0) |
1098 | { |
1813 | { |
1099 | uint64_t counter; |
1814 | uint64_t counter; |
1100 | read (evfd, &counter, sizeof (uint64_t)); |
1815 | read (evfd, &counter, sizeof (uint64_t)); |
1101 | } |
1816 | } |
1102 | else |
1817 | else |
1103 | #endif |
1818 | #endif |
1104 | { |
1819 | { |
1105 | char dummy; |
1820 | char dummy; |
|
|
1821 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1106 | read (evpipe [0], &dummy, 1); |
1822 | read (evpipe [0], &dummy, 1); |
|
|
1823 | } |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | pipe_write_skipped = 0; |
|
|
1827 | |
|
|
1828 | #if EV_SIGNAL_ENABLE |
|
|
1829 | if (sig_pending) |
1107 | } |
1830 | { |
|
|
1831 | sig_pending = 0; |
1108 | |
1832 | |
1109 | if (gotsig && ev_is_default_loop (EV_A)) |
1833 | for (i = EV_NSIG - 1; i--; ) |
1110 | { |
1834 | if (expect_false (signals [i].pending)) |
1111 | int signum; |
|
|
1112 | gotsig = 0; |
|
|
1113 | |
|
|
1114 | for (signum = signalmax; signum--; ) |
|
|
1115 | if (signals [signum].gotsig) |
|
|
1116 | ev_feed_signal_event (EV_A_ signum + 1); |
1835 | ev_feed_signal_event (EV_A_ i + 1); |
1117 | } |
1836 | } |
|
|
1837 | #endif |
1118 | |
1838 | |
1119 | #if EV_ASYNC_ENABLE |
1839 | #if EV_ASYNC_ENABLE |
1120 | if (gotasync) |
1840 | if (async_pending) |
1121 | { |
1841 | { |
1122 | int i; |
1842 | async_pending = 0; |
1123 | gotasync = 0; |
|
|
1124 | |
1843 | |
1125 | for (i = asynccnt; i--; ) |
1844 | for (i = asynccnt; i--; ) |
1126 | if (asyncs [i]->sent) |
1845 | if (asyncs [i]->sent) |
1127 | { |
1846 | { |
1128 | asyncs [i]->sent = 0; |
1847 | asyncs [i]->sent = 0; |
… | |
… | |
1132 | #endif |
1851 | #endif |
1133 | } |
1852 | } |
1134 | |
1853 | |
1135 | /*****************************************************************************/ |
1854 | /*****************************************************************************/ |
1136 | |
1855 | |
|
|
1856 | void |
|
|
1857 | ev_feed_signal (int signum) |
|
|
1858 | { |
|
|
1859 | #if EV_MULTIPLICITY |
|
|
1860 | EV_P = signals [signum - 1].loop; |
|
|
1861 | |
|
|
1862 | if (!EV_A) |
|
|
1863 | return; |
|
|
1864 | #endif |
|
|
1865 | |
|
|
1866 | if (!ev_active (&pipe_w)) |
|
|
1867 | return; |
|
|
1868 | |
|
|
1869 | signals [signum - 1].pending = 1; |
|
|
1870 | evpipe_write (EV_A_ &sig_pending); |
|
|
1871 | } |
|
|
1872 | |
1137 | static void |
1873 | static void |
1138 | ev_sighandler (int signum) |
1874 | ev_sighandler (int signum) |
1139 | { |
1875 | { |
1140 | #if EV_MULTIPLICITY |
|
|
1141 | struct ev_loop *loop = &default_loop_struct; |
|
|
1142 | #endif |
|
|
1143 | |
|
|
1144 | #if _WIN32 |
1876 | #ifdef _WIN32 |
1145 | signal (signum, ev_sighandler); |
1877 | signal (signum, ev_sighandler); |
1146 | #endif |
1878 | #endif |
1147 | |
1879 | |
1148 | signals [signum - 1].gotsig = 1; |
1880 | ev_feed_signal (signum); |
1149 | evpipe_write (EV_A_ &gotsig); |
|
|
1150 | } |
1881 | } |
1151 | |
1882 | |
1152 | void noinline |
1883 | void noinline |
1153 | ev_feed_signal_event (EV_P_ int signum) |
1884 | ev_feed_signal_event (EV_P_ int signum) |
1154 | { |
1885 | { |
1155 | WL w; |
1886 | WL w; |
1156 | |
1887 | |
|
|
1888 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1889 | return; |
|
|
1890 | |
|
|
1891 | --signum; |
|
|
1892 | |
1157 | #if EV_MULTIPLICITY |
1893 | #if EV_MULTIPLICITY |
1158 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1894 | /* it is permissible to try to feed a signal to the wrong loop */ |
1159 | #endif |
1895 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1160 | |
1896 | |
1161 | --signum; |
1897 | if (expect_false (signals [signum].loop != EV_A)) |
1162 | |
|
|
1163 | if (signum < 0 || signum >= signalmax) |
|
|
1164 | return; |
1898 | return; |
|
|
1899 | #endif |
1165 | |
1900 | |
1166 | signals [signum].gotsig = 0; |
1901 | signals [signum].pending = 0; |
1167 | |
1902 | |
1168 | for (w = signals [signum].head; w; w = w->next) |
1903 | for (w = signals [signum].head; w; w = w->next) |
1169 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1904 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1170 | } |
1905 | } |
1171 | |
1906 | |
|
|
1907 | #if EV_USE_SIGNALFD |
|
|
1908 | static void |
|
|
1909 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1910 | { |
|
|
1911 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1912 | |
|
|
1913 | for (;;) |
|
|
1914 | { |
|
|
1915 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1916 | |
|
|
1917 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1918 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1919 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1920 | |
|
|
1921 | if (res < (ssize_t)sizeof (si)) |
|
|
1922 | break; |
|
|
1923 | } |
|
|
1924 | } |
|
|
1925 | #endif |
|
|
1926 | |
|
|
1927 | #endif |
|
|
1928 | |
1172 | /*****************************************************************************/ |
1929 | /*****************************************************************************/ |
1173 | |
1930 | |
|
|
1931 | #if EV_CHILD_ENABLE |
1174 | static WL childs [EV_PID_HASHSIZE]; |
1932 | static WL childs [EV_PID_HASHSIZE]; |
1175 | |
|
|
1176 | #ifndef _WIN32 |
|
|
1177 | |
1933 | |
1178 | static ev_signal childev; |
1934 | static ev_signal childev; |
1179 | |
1935 | |
1180 | #ifndef WIFCONTINUED |
1936 | #ifndef WIFCONTINUED |
1181 | # define WIFCONTINUED(status) 0 |
1937 | # define WIFCONTINUED(status) 0 |
1182 | #endif |
1938 | #endif |
1183 | |
1939 | |
|
|
1940 | /* handle a single child status event */ |
1184 | inline_speed void |
1941 | inline_speed void |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
1942 | child_reap (EV_P_ int chain, int pid, int status) |
1186 | { |
1943 | { |
1187 | ev_child *w; |
1944 | ev_child *w; |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1945 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1189 | |
1946 | |
1190 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1947 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1191 | { |
1948 | { |
1192 | if ((w->pid == pid || !w->pid) |
1949 | if ((w->pid == pid || !w->pid) |
1193 | && (!traced || (w->flags & 1))) |
1950 | && (!traced || (w->flags & 1))) |
1194 | { |
1951 | { |
1195 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1952 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1202 | |
1959 | |
1203 | #ifndef WCONTINUED |
1960 | #ifndef WCONTINUED |
1204 | # define WCONTINUED 0 |
1961 | # define WCONTINUED 0 |
1205 | #endif |
1962 | #endif |
1206 | |
1963 | |
|
|
1964 | /* called on sigchld etc., calls waitpid */ |
1207 | static void |
1965 | static void |
1208 | childcb (EV_P_ ev_signal *sw, int revents) |
1966 | childcb (EV_P_ ev_signal *sw, int revents) |
1209 | { |
1967 | { |
1210 | int pid, status; |
1968 | int pid, status; |
1211 | |
1969 | |
… | |
… | |
1219 | /* make sure we are called again until all children have been reaped */ |
1977 | /* make sure we are called again until all children have been reaped */ |
1220 | /* we need to do it this way so that the callback gets called before we continue */ |
1978 | /* we need to do it this way so that the callback gets called before we continue */ |
1221 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1979 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1222 | |
1980 | |
1223 | child_reap (EV_A_ pid, pid, status); |
1981 | child_reap (EV_A_ pid, pid, status); |
1224 | if (EV_PID_HASHSIZE > 1) |
1982 | if ((EV_PID_HASHSIZE) > 1) |
1225 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1983 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1226 | } |
1984 | } |
1227 | |
1985 | |
1228 | #endif |
1986 | #endif |
1229 | |
1987 | |
1230 | /*****************************************************************************/ |
1988 | /*****************************************************************************/ |
1231 | |
1989 | |
|
|
1990 | #if EV_USE_IOCP |
|
|
1991 | # include "ev_iocp.c" |
|
|
1992 | #endif |
1232 | #if EV_USE_PORT |
1993 | #if EV_USE_PORT |
1233 | # include "ev_port.c" |
1994 | # include "ev_port.c" |
1234 | #endif |
1995 | #endif |
1235 | #if EV_USE_KQUEUE |
1996 | #if EV_USE_KQUEUE |
1236 | # include "ev_kqueue.c" |
1997 | # include "ev_kqueue.c" |
… | |
… | |
1243 | #endif |
2004 | #endif |
1244 | #if EV_USE_SELECT |
2005 | #if EV_USE_SELECT |
1245 | # include "ev_select.c" |
2006 | # include "ev_select.c" |
1246 | #endif |
2007 | #endif |
1247 | |
2008 | |
1248 | int |
2009 | int ecb_cold |
1249 | ev_version_major (void) |
2010 | ev_version_major (void) |
1250 | { |
2011 | { |
1251 | return EV_VERSION_MAJOR; |
2012 | return EV_VERSION_MAJOR; |
1252 | } |
2013 | } |
1253 | |
2014 | |
1254 | int |
2015 | int ecb_cold |
1255 | ev_version_minor (void) |
2016 | ev_version_minor (void) |
1256 | { |
2017 | { |
1257 | return EV_VERSION_MINOR; |
2018 | return EV_VERSION_MINOR; |
1258 | } |
2019 | } |
1259 | |
2020 | |
1260 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2021 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1261 | int inline_size |
2022 | int inline_size ecb_cold |
1262 | enable_secure (void) |
2023 | enable_secure (void) |
1263 | { |
2024 | { |
1264 | #ifdef _WIN32 |
2025 | #ifdef _WIN32 |
1265 | return 0; |
2026 | return 0; |
1266 | #else |
2027 | #else |
1267 | return getuid () != geteuid () |
2028 | return getuid () != geteuid () |
1268 | || getgid () != getegid (); |
2029 | || getgid () != getegid (); |
1269 | #endif |
2030 | #endif |
1270 | } |
2031 | } |
1271 | |
2032 | |
1272 | unsigned int |
2033 | unsigned int ecb_cold |
1273 | ev_supported_backends (void) |
2034 | ev_supported_backends (void) |
1274 | { |
2035 | { |
1275 | unsigned int flags = 0; |
2036 | unsigned int flags = 0; |
1276 | |
2037 | |
1277 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2038 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1281 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2042 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1282 | |
2043 | |
1283 | return flags; |
2044 | return flags; |
1284 | } |
2045 | } |
1285 | |
2046 | |
1286 | unsigned int |
2047 | unsigned int ecb_cold |
1287 | ev_recommended_backends (void) |
2048 | ev_recommended_backends (void) |
1288 | { |
2049 | { |
1289 | unsigned int flags = ev_supported_backends (); |
2050 | unsigned int flags = ev_supported_backends (); |
1290 | |
2051 | |
1291 | #ifndef __NetBSD__ |
2052 | #ifndef __NetBSD__ |
… | |
… | |
1296 | #ifdef __APPLE__ |
2057 | #ifdef __APPLE__ |
1297 | /* only select works correctly on that "unix-certified" platform */ |
2058 | /* only select works correctly on that "unix-certified" platform */ |
1298 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2059 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1299 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2060 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1300 | #endif |
2061 | #endif |
|
|
2062 | #ifdef __FreeBSD__ |
|
|
2063 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2064 | #endif |
1301 | |
2065 | |
1302 | return flags; |
2066 | return flags; |
1303 | } |
2067 | } |
1304 | |
2068 | |
1305 | unsigned int |
2069 | unsigned int ecb_cold |
1306 | ev_embeddable_backends (void) |
2070 | ev_embeddable_backends (void) |
1307 | { |
2071 | { |
1308 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2072 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1309 | |
2073 | |
1310 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2074 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1311 | /* please fix it and tell me how to detect the fix */ |
2075 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1312 | flags &= ~EVBACKEND_EPOLL; |
2076 | flags &= ~EVBACKEND_EPOLL; |
1313 | |
2077 | |
1314 | return flags; |
2078 | return flags; |
1315 | } |
2079 | } |
1316 | |
2080 | |
1317 | unsigned int |
2081 | unsigned int |
1318 | ev_backend (EV_P) |
2082 | ev_backend (EV_P) |
1319 | { |
2083 | { |
1320 | return backend; |
2084 | return backend; |
1321 | } |
2085 | } |
1322 | |
2086 | |
|
|
2087 | #if EV_FEATURE_API |
1323 | unsigned int |
2088 | unsigned int |
1324 | ev_loop_count (EV_P) |
2089 | ev_iteration (EV_P) |
1325 | { |
2090 | { |
1326 | return loop_count; |
2091 | return loop_count; |
|
|
2092 | } |
|
|
2093 | |
|
|
2094 | unsigned int |
|
|
2095 | ev_depth (EV_P) |
|
|
2096 | { |
|
|
2097 | return loop_depth; |
1327 | } |
2098 | } |
1328 | |
2099 | |
1329 | void |
2100 | void |
1330 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2101 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1331 | { |
2102 | { |
… | |
… | |
1336 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2107 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1337 | { |
2108 | { |
1338 | timeout_blocktime = interval; |
2109 | timeout_blocktime = interval; |
1339 | } |
2110 | } |
1340 | |
2111 | |
|
|
2112 | void |
|
|
2113 | ev_set_userdata (EV_P_ void *data) |
|
|
2114 | { |
|
|
2115 | userdata = data; |
|
|
2116 | } |
|
|
2117 | |
|
|
2118 | void * |
|
|
2119 | ev_userdata (EV_P) |
|
|
2120 | { |
|
|
2121 | return userdata; |
|
|
2122 | } |
|
|
2123 | |
|
|
2124 | void |
|
|
2125 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
2126 | { |
|
|
2127 | invoke_cb = invoke_pending_cb; |
|
|
2128 | } |
|
|
2129 | |
|
|
2130 | void |
|
|
2131 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
2132 | { |
|
|
2133 | release_cb = release; |
|
|
2134 | acquire_cb = acquire; |
|
|
2135 | } |
|
|
2136 | #endif |
|
|
2137 | |
|
|
2138 | /* initialise a loop structure, must be zero-initialised */ |
1341 | static void noinline |
2139 | static void noinline ecb_cold |
1342 | loop_init (EV_P_ unsigned int flags) |
2140 | loop_init (EV_P_ unsigned int flags) |
1343 | { |
2141 | { |
1344 | if (!backend) |
2142 | if (!backend) |
1345 | { |
2143 | { |
|
|
2144 | origflags = flags; |
|
|
2145 | |
1346 | #if EV_USE_REALTIME |
2146 | #if EV_USE_REALTIME |
1347 | if (!have_realtime) |
2147 | if (!have_realtime) |
1348 | { |
2148 | { |
1349 | struct timespec ts; |
2149 | struct timespec ts; |
1350 | |
2150 | |
… | |
… | |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2161 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1362 | have_monotonic = 1; |
2162 | have_monotonic = 1; |
1363 | } |
2163 | } |
1364 | #endif |
2164 | #endif |
1365 | |
2165 | |
1366 | ev_rt_now = ev_time (); |
|
|
1367 | mn_now = get_clock (); |
|
|
1368 | now_floor = mn_now; |
|
|
1369 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1370 | |
|
|
1371 | io_blocktime = 0.; |
|
|
1372 | timeout_blocktime = 0.; |
|
|
1373 | backend = 0; |
|
|
1374 | backend_fd = -1; |
|
|
1375 | gotasync = 0; |
|
|
1376 | #if EV_USE_INOTIFY |
|
|
1377 | fs_fd = -2; |
|
|
1378 | #endif |
|
|
1379 | |
|
|
1380 | /* pid check not overridable via env */ |
2166 | /* pid check not overridable via env */ |
1381 | #ifndef _WIN32 |
2167 | #ifndef _WIN32 |
1382 | if (flags & EVFLAG_FORKCHECK) |
2168 | if (flags & EVFLAG_FORKCHECK) |
1383 | curpid = getpid (); |
2169 | curpid = getpid (); |
1384 | #endif |
2170 | #endif |
… | |
… | |
1386 | if (!(flags & EVFLAG_NOENV) |
2172 | if (!(flags & EVFLAG_NOENV) |
1387 | && !enable_secure () |
2173 | && !enable_secure () |
1388 | && getenv ("LIBEV_FLAGS")) |
2174 | && getenv ("LIBEV_FLAGS")) |
1389 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2175 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1390 | |
2176 | |
1391 | if (!(flags & 0x0000ffffU)) |
2177 | ev_rt_now = ev_time (); |
|
|
2178 | mn_now = get_clock (); |
|
|
2179 | now_floor = mn_now; |
|
|
2180 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2181 | #if EV_FEATURE_API |
|
|
2182 | invoke_cb = ev_invoke_pending; |
|
|
2183 | #endif |
|
|
2184 | |
|
|
2185 | io_blocktime = 0.; |
|
|
2186 | timeout_blocktime = 0.; |
|
|
2187 | backend = 0; |
|
|
2188 | backend_fd = -1; |
|
|
2189 | sig_pending = 0; |
|
|
2190 | #if EV_ASYNC_ENABLE |
|
|
2191 | async_pending = 0; |
|
|
2192 | #endif |
|
|
2193 | pipe_write_skipped = 0; |
|
|
2194 | pipe_write_wanted = 0; |
|
|
2195 | #if EV_USE_INOTIFY |
|
|
2196 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2197 | #endif |
|
|
2198 | #if EV_USE_SIGNALFD |
|
|
2199 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2200 | #endif |
|
|
2201 | |
|
|
2202 | if (!(flags & EVBACKEND_MASK)) |
1392 | flags |= ev_recommended_backends (); |
2203 | flags |= ev_recommended_backends (); |
1393 | |
2204 | |
|
|
2205 | #if EV_USE_IOCP |
|
|
2206 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2207 | #endif |
1394 | #if EV_USE_PORT |
2208 | #if EV_USE_PORT |
1395 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2209 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1396 | #endif |
2210 | #endif |
1397 | #if EV_USE_KQUEUE |
2211 | #if EV_USE_KQUEUE |
1398 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2212 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1405 | #endif |
2219 | #endif |
1406 | #if EV_USE_SELECT |
2220 | #if EV_USE_SELECT |
1407 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2221 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1408 | #endif |
2222 | #endif |
1409 | |
2223 | |
|
|
2224 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2225 | |
|
|
2226 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1410 | ev_init (&pipeev, pipecb); |
2227 | ev_init (&pipe_w, pipecb); |
1411 | ev_set_priority (&pipeev, EV_MAXPRI); |
2228 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2229 | #endif |
1412 | } |
2230 | } |
1413 | } |
2231 | } |
1414 | |
2232 | |
1415 | static void noinline |
2233 | /* free up a loop structure */ |
|
|
2234 | void ecb_cold |
1416 | loop_destroy (EV_P) |
2235 | ev_loop_destroy (EV_P) |
1417 | { |
2236 | { |
1418 | int i; |
2237 | int i; |
1419 | |
2238 | |
|
|
2239 | #if EV_MULTIPLICITY |
|
|
2240 | /* mimic free (0) */ |
|
|
2241 | if (!EV_A) |
|
|
2242 | return; |
|
|
2243 | #endif |
|
|
2244 | |
|
|
2245 | #if EV_CLEANUP_ENABLE |
|
|
2246 | /* queue cleanup watchers (and execute them) */ |
|
|
2247 | if (expect_false (cleanupcnt)) |
|
|
2248 | { |
|
|
2249 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2250 | EV_INVOKE_PENDING; |
|
|
2251 | } |
|
|
2252 | #endif |
|
|
2253 | |
|
|
2254 | #if EV_CHILD_ENABLE |
|
|
2255 | if (ev_is_active (&childev)) |
|
|
2256 | { |
|
|
2257 | ev_ref (EV_A); /* child watcher */ |
|
|
2258 | ev_signal_stop (EV_A_ &childev); |
|
|
2259 | } |
|
|
2260 | #endif |
|
|
2261 | |
1420 | if (ev_is_active (&pipeev)) |
2262 | if (ev_is_active (&pipe_w)) |
1421 | { |
2263 | { |
1422 | ev_ref (EV_A); /* signal watcher */ |
2264 | /*ev_ref (EV_A);*/ |
1423 | ev_io_stop (EV_A_ &pipeev); |
2265 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1424 | |
2266 | |
1425 | #if EV_USE_EVENTFD |
2267 | #if EV_USE_EVENTFD |
1426 | if (evfd >= 0) |
2268 | if (evfd >= 0) |
1427 | close (evfd); |
2269 | close (evfd); |
1428 | #endif |
2270 | #endif |
1429 | |
2271 | |
1430 | if (evpipe [0] >= 0) |
2272 | if (evpipe [0] >= 0) |
1431 | { |
2273 | { |
1432 | close (evpipe [0]); |
2274 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1433 | close (evpipe [1]); |
2275 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1434 | } |
2276 | } |
1435 | } |
2277 | } |
|
|
2278 | |
|
|
2279 | #if EV_USE_SIGNALFD |
|
|
2280 | if (ev_is_active (&sigfd_w)) |
|
|
2281 | close (sigfd); |
|
|
2282 | #endif |
1436 | |
2283 | |
1437 | #if EV_USE_INOTIFY |
2284 | #if EV_USE_INOTIFY |
1438 | if (fs_fd >= 0) |
2285 | if (fs_fd >= 0) |
1439 | close (fs_fd); |
2286 | close (fs_fd); |
1440 | #endif |
2287 | #endif |
1441 | |
2288 | |
1442 | if (backend_fd >= 0) |
2289 | if (backend_fd >= 0) |
1443 | close (backend_fd); |
2290 | close (backend_fd); |
1444 | |
2291 | |
|
|
2292 | #if EV_USE_IOCP |
|
|
2293 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2294 | #endif |
1445 | #if EV_USE_PORT |
2295 | #if EV_USE_PORT |
1446 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2296 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1447 | #endif |
2297 | #endif |
1448 | #if EV_USE_KQUEUE |
2298 | #if EV_USE_KQUEUE |
1449 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2299 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1464 | #if EV_IDLE_ENABLE |
2314 | #if EV_IDLE_ENABLE |
1465 | array_free (idle, [i]); |
2315 | array_free (idle, [i]); |
1466 | #endif |
2316 | #endif |
1467 | } |
2317 | } |
1468 | |
2318 | |
1469 | ev_free (anfds); anfdmax = 0; |
2319 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1470 | |
2320 | |
1471 | /* have to use the microsoft-never-gets-it-right macro */ |
2321 | /* have to use the microsoft-never-gets-it-right macro */ |
1472 | array_free (rfeed, EMPTY); |
2322 | array_free (rfeed, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
2323 | array_free (fdchange, EMPTY); |
1474 | array_free (timer, EMPTY); |
2324 | array_free (timer, EMPTY); |
… | |
… | |
1476 | array_free (periodic, EMPTY); |
2326 | array_free (periodic, EMPTY); |
1477 | #endif |
2327 | #endif |
1478 | #if EV_FORK_ENABLE |
2328 | #if EV_FORK_ENABLE |
1479 | array_free (fork, EMPTY); |
2329 | array_free (fork, EMPTY); |
1480 | #endif |
2330 | #endif |
|
|
2331 | #if EV_CLEANUP_ENABLE |
|
|
2332 | array_free (cleanup, EMPTY); |
|
|
2333 | #endif |
1481 | array_free (prepare, EMPTY); |
2334 | array_free (prepare, EMPTY); |
1482 | array_free (check, EMPTY); |
2335 | array_free (check, EMPTY); |
1483 | #if EV_ASYNC_ENABLE |
2336 | #if EV_ASYNC_ENABLE |
1484 | array_free (async, EMPTY); |
2337 | array_free (async, EMPTY); |
1485 | #endif |
2338 | #endif |
1486 | |
2339 | |
1487 | backend = 0; |
2340 | backend = 0; |
|
|
2341 | |
|
|
2342 | #if EV_MULTIPLICITY |
|
|
2343 | if (ev_is_default_loop (EV_A)) |
|
|
2344 | #endif |
|
|
2345 | ev_default_loop_ptr = 0; |
|
|
2346 | #if EV_MULTIPLICITY |
|
|
2347 | else |
|
|
2348 | ev_free (EV_A); |
|
|
2349 | #endif |
1488 | } |
2350 | } |
1489 | |
2351 | |
1490 | #if EV_USE_INOTIFY |
2352 | #if EV_USE_INOTIFY |
1491 | inline_size void infy_fork (EV_P); |
2353 | inline_size void infy_fork (EV_P); |
1492 | #endif |
2354 | #endif |
… | |
… | |
1505 | #endif |
2367 | #endif |
1506 | #if EV_USE_INOTIFY |
2368 | #if EV_USE_INOTIFY |
1507 | infy_fork (EV_A); |
2369 | infy_fork (EV_A); |
1508 | #endif |
2370 | #endif |
1509 | |
2371 | |
1510 | if (ev_is_active (&pipeev)) |
2372 | if (ev_is_active (&pipe_w)) |
1511 | { |
2373 | { |
1512 | /* this "locks" the handlers against writing to the pipe */ |
2374 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1513 | /* while we modify the fd vars */ |
|
|
1514 | gotsig = 1; |
|
|
1515 | #if EV_ASYNC_ENABLE |
|
|
1516 | gotasync = 1; |
|
|
1517 | #endif |
|
|
1518 | |
2375 | |
1519 | ev_ref (EV_A); |
2376 | ev_ref (EV_A); |
1520 | ev_io_stop (EV_A_ &pipeev); |
2377 | ev_io_stop (EV_A_ &pipe_w); |
1521 | |
2378 | |
1522 | #if EV_USE_EVENTFD |
2379 | #if EV_USE_EVENTFD |
1523 | if (evfd >= 0) |
2380 | if (evfd >= 0) |
1524 | close (evfd); |
2381 | close (evfd); |
1525 | #endif |
2382 | #endif |
1526 | |
2383 | |
1527 | if (evpipe [0] >= 0) |
2384 | if (evpipe [0] >= 0) |
1528 | { |
2385 | { |
1529 | close (evpipe [0]); |
2386 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1530 | close (evpipe [1]); |
2387 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1531 | } |
2388 | } |
1532 | |
2389 | |
|
|
2390 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1533 | evpipe_init (EV_A); |
2391 | evpipe_init (EV_A); |
1534 | /* now iterate over everything, in case we missed something */ |
2392 | /* now iterate over everything, in case we missed something */ |
1535 | pipecb (EV_A_ &pipeev, EV_READ); |
2393 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2394 | #endif |
1536 | } |
2395 | } |
1537 | |
2396 | |
1538 | postfork = 0; |
2397 | postfork = 0; |
1539 | } |
2398 | } |
1540 | |
2399 | |
1541 | #if EV_MULTIPLICITY |
2400 | #if EV_MULTIPLICITY |
1542 | |
2401 | |
1543 | struct ev_loop * |
2402 | struct ev_loop * ecb_cold |
1544 | ev_loop_new (unsigned int flags) |
2403 | ev_loop_new (unsigned int flags) |
1545 | { |
2404 | { |
1546 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2405 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1547 | |
2406 | |
1548 | memset (loop, 0, sizeof (struct ev_loop)); |
2407 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1549 | |
|
|
1550 | loop_init (EV_A_ flags); |
2408 | loop_init (EV_A_ flags); |
1551 | |
2409 | |
1552 | if (ev_backend (EV_A)) |
2410 | if (ev_backend (EV_A)) |
1553 | return loop; |
2411 | return EV_A; |
1554 | |
2412 | |
|
|
2413 | ev_free (EV_A); |
1555 | return 0; |
2414 | return 0; |
1556 | } |
2415 | } |
1557 | |
2416 | |
1558 | void |
2417 | #endif /* multiplicity */ |
1559 | ev_loop_destroy (EV_P) |
|
|
1560 | { |
|
|
1561 | loop_destroy (EV_A); |
|
|
1562 | ev_free (loop); |
|
|
1563 | } |
|
|
1564 | |
|
|
1565 | void |
|
|
1566 | ev_loop_fork (EV_P) |
|
|
1567 | { |
|
|
1568 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1569 | } |
|
|
1570 | |
2418 | |
1571 | #if EV_VERIFY |
2419 | #if EV_VERIFY |
1572 | static void noinline |
2420 | static void noinline ecb_cold |
1573 | verify_watcher (EV_P_ W w) |
2421 | verify_watcher (EV_P_ W w) |
1574 | { |
2422 | { |
1575 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2423 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1576 | |
2424 | |
1577 | if (w->pending) |
2425 | if (w->pending) |
1578 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2426 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1579 | } |
2427 | } |
1580 | |
2428 | |
1581 | static void noinline |
2429 | static void noinline ecb_cold |
1582 | verify_heap (EV_P_ ANHE *heap, int N) |
2430 | verify_heap (EV_P_ ANHE *heap, int N) |
1583 | { |
2431 | { |
1584 | int i; |
2432 | int i; |
1585 | |
2433 | |
1586 | for (i = HEAP0; i < N + HEAP0; ++i) |
2434 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1591 | |
2439 | |
1592 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2440 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1593 | } |
2441 | } |
1594 | } |
2442 | } |
1595 | |
2443 | |
1596 | static void noinline |
2444 | static void noinline ecb_cold |
1597 | array_verify (EV_P_ W *ws, int cnt) |
2445 | array_verify (EV_P_ W *ws, int cnt) |
1598 | { |
2446 | { |
1599 | while (cnt--) |
2447 | while (cnt--) |
1600 | { |
2448 | { |
1601 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2449 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1602 | verify_watcher (EV_A_ ws [cnt]); |
2450 | verify_watcher (EV_A_ ws [cnt]); |
1603 | } |
2451 | } |
1604 | } |
2452 | } |
1605 | #endif |
2453 | #endif |
1606 | |
2454 | |
1607 | void |
2455 | #if EV_FEATURE_API |
|
|
2456 | void ecb_cold |
1608 | ev_loop_verify (EV_P) |
2457 | ev_verify (EV_P) |
1609 | { |
2458 | { |
1610 | #if EV_VERIFY |
2459 | #if EV_VERIFY |
1611 | int i; |
2460 | int i; |
1612 | WL w; |
2461 | WL w; |
1613 | |
2462 | |
… | |
… | |
1647 | #if EV_FORK_ENABLE |
2496 | #if EV_FORK_ENABLE |
1648 | assert (forkmax >= forkcnt); |
2497 | assert (forkmax >= forkcnt); |
1649 | array_verify (EV_A_ (W *)forks, forkcnt); |
2498 | array_verify (EV_A_ (W *)forks, forkcnt); |
1650 | #endif |
2499 | #endif |
1651 | |
2500 | |
|
|
2501 | #if EV_CLEANUP_ENABLE |
|
|
2502 | assert (cleanupmax >= cleanupcnt); |
|
|
2503 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2504 | #endif |
|
|
2505 | |
1652 | #if EV_ASYNC_ENABLE |
2506 | #if EV_ASYNC_ENABLE |
1653 | assert (asyncmax >= asynccnt); |
2507 | assert (asyncmax >= asynccnt); |
1654 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2508 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1655 | #endif |
2509 | #endif |
1656 | |
2510 | |
|
|
2511 | #if EV_PREPARE_ENABLE |
1657 | assert (preparemax >= preparecnt); |
2512 | assert (preparemax >= preparecnt); |
1658 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2513 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2514 | #endif |
1659 | |
2515 | |
|
|
2516 | #if EV_CHECK_ENABLE |
1660 | assert (checkmax >= checkcnt); |
2517 | assert (checkmax >= checkcnt); |
1661 | array_verify (EV_A_ (W *)checks, checkcnt); |
2518 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2519 | #endif |
1662 | |
2520 | |
1663 | # if 0 |
2521 | # if 0 |
|
|
2522 | #if EV_CHILD_ENABLE |
1664 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2523 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1665 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2524 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2525 | #endif |
1666 | # endif |
2526 | # endif |
1667 | #endif |
2527 | #endif |
1668 | } |
2528 | } |
1669 | |
2529 | #endif |
1670 | #endif /* multiplicity */ |
|
|
1671 | |
2530 | |
1672 | #if EV_MULTIPLICITY |
2531 | #if EV_MULTIPLICITY |
1673 | struct ev_loop * |
2532 | struct ev_loop * ecb_cold |
1674 | ev_default_loop_init (unsigned int flags) |
|
|
1675 | #else |
2533 | #else |
1676 | int |
2534 | int |
|
|
2535 | #endif |
1677 | ev_default_loop (unsigned int flags) |
2536 | ev_default_loop (unsigned int flags) |
1678 | #endif |
|
|
1679 | { |
2537 | { |
1680 | if (!ev_default_loop_ptr) |
2538 | if (!ev_default_loop_ptr) |
1681 | { |
2539 | { |
1682 | #if EV_MULTIPLICITY |
2540 | #if EV_MULTIPLICITY |
1683 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2541 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1684 | #else |
2542 | #else |
1685 | ev_default_loop_ptr = 1; |
2543 | ev_default_loop_ptr = 1; |
1686 | #endif |
2544 | #endif |
1687 | |
2545 | |
1688 | loop_init (EV_A_ flags); |
2546 | loop_init (EV_A_ flags); |
1689 | |
2547 | |
1690 | if (ev_backend (EV_A)) |
2548 | if (ev_backend (EV_A)) |
1691 | { |
2549 | { |
1692 | #ifndef _WIN32 |
2550 | #if EV_CHILD_ENABLE |
1693 | ev_signal_init (&childev, childcb, SIGCHLD); |
2551 | ev_signal_init (&childev, childcb, SIGCHLD); |
1694 | ev_set_priority (&childev, EV_MAXPRI); |
2552 | ev_set_priority (&childev, EV_MAXPRI); |
1695 | ev_signal_start (EV_A_ &childev); |
2553 | ev_signal_start (EV_A_ &childev); |
1696 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2554 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1697 | #endif |
2555 | #endif |
… | |
… | |
1702 | |
2560 | |
1703 | return ev_default_loop_ptr; |
2561 | return ev_default_loop_ptr; |
1704 | } |
2562 | } |
1705 | |
2563 | |
1706 | void |
2564 | void |
1707 | ev_default_destroy (void) |
2565 | ev_loop_fork (EV_P) |
1708 | { |
2566 | { |
1709 | #if EV_MULTIPLICITY |
|
|
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1711 | #endif |
|
|
1712 | |
|
|
1713 | ev_default_loop_ptr = 0; |
|
|
1714 | |
|
|
1715 | #ifndef _WIN32 |
|
|
1716 | ev_ref (EV_A); /* child watcher */ |
|
|
1717 | ev_signal_stop (EV_A_ &childev); |
|
|
1718 | #endif |
|
|
1719 | |
|
|
1720 | loop_destroy (EV_A); |
|
|
1721 | } |
|
|
1722 | |
|
|
1723 | void |
|
|
1724 | ev_default_fork (void) |
|
|
1725 | { |
|
|
1726 | #if EV_MULTIPLICITY |
|
|
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1728 | #endif |
|
|
1729 | |
|
|
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
2567 | postfork = 1; /* must be in line with ev_default_fork */ |
1731 | } |
2568 | } |
1732 | |
2569 | |
1733 | /*****************************************************************************/ |
2570 | /*****************************************************************************/ |
1734 | |
2571 | |
1735 | void |
2572 | void |
1736 | ev_invoke (EV_P_ void *w, int revents) |
2573 | ev_invoke (EV_P_ void *w, int revents) |
1737 | { |
2574 | { |
1738 | EV_CB_INVOKE ((W)w, revents); |
2575 | EV_CB_INVOKE ((W)w, revents); |
1739 | } |
2576 | } |
1740 | |
2577 | |
1741 | inline_speed void |
2578 | unsigned int |
1742 | call_pending (EV_P) |
2579 | ev_pending_count (EV_P) |
|
|
2580 | { |
|
|
2581 | int pri; |
|
|
2582 | unsigned int count = 0; |
|
|
2583 | |
|
|
2584 | for (pri = NUMPRI; pri--; ) |
|
|
2585 | count += pendingcnt [pri]; |
|
|
2586 | |
|
|
2587 | return count; |
|
|
2588 | } |
|
|
2589 | |
|
|
2590 | void noinline |
|
|
2591 | ev_invoke_pending (EV_P) |
1743 | { |
2592 | { |
1744 | int pri; |
2593 | int pri; |
1745 | |
2594 | |
1746 | for (pri = NUMPRI; pri--; ) |
2595 | for (pri = NUMPRI; pri--; ) |
1747 | while (pendingcnt [pri]) |
2596 | while (pendingcnt [pri]) |
1748 | { |
2597 | { |
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2598 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1750 | |
2599 | |
1751 | if (expect_true (p->w)) |
|
|
1752 | { |
|
|
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1754 | |
|
|
1755 | p->w->pending = 0; |
2600 | p->w->pending = 0; |
1756 | EV_CB_INVOKE (p->w, p->events); |
2601 | EV_CB_INVOKE (p->w, p->events); |
1757 | EV_FREQUENT_CHECK; |
2602 | EV_FREQUENT_CHECK; |
1758 | } |
|
|
1759 | } |
2603 | } |
1760 | } |
2604 | } |
1761 | |
2605 | |
1762 | #if EV_IDLE_ENABLE |
2606 | #if EV_IDLE_ENABLE |
|
|
2607 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2608 | /* only when higher priorities are idle" logic */ |
1763 | inline_size void |
2609 | inline_size void |
1764 | idle_reify (EV_P) |
2610 | idle_reify (EV_P) |
1765 | { |
2611 | { |
1766 | if (expect_false (idleall)) |
2612 | if (expect_false (idleall)) |
1767 | { |
2613 | { |
… | |
… | |
1780 | } |
2626 | } |
1781 | } |
2627 | } |
1782 | } |
2628 | } |
1783 | #endif |
2629 | #endif |
1784 | |
2630 | |
|
|
2631 | /* make timers pending */ |
1785 | inline_size void |
2632 | inline_size void |
1786 | timers_reify (EV_P) |
2633 | timers_reify (EV_P) |
1787 | { |
2634 | { |
1788 | EV_FREQUENT_CHECK; |
2635 | EV_FREQUENT_CHECK; |
1789 | |
2636 | |
… | |
… | |
1813 | EV_FREQUENT_CHECK; |
2660 | EV_FREQUENT_CHECK; |
1814 | feed_reverse (EV_A_ (W)w); |
2661 | feed_reverse (EV_A_ (W)w); |
1815 | } |
2662 | } |
1816 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2663 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1817 | |
2664 | |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2665 | feed_reverse_done (EV_A_ EV_TIMER); |
1819 | } |
2666 | } |
1820 | } |
2667 | } |
1821 | |
2668 | |
1822 | #if EV_PERIODIC_ENABLE |
2669 | #if EV_PERIODIC_ENABLE |
|
|
2670 | |
|
|
2671 | static void noinline |
|
|
2672 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2673 | { |
|
|
2674 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2675 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2676 | |
|
|
2677 | /* the above almost always errs on the low side */ |
|
|
2678 | while (at <= ev_rt_now) |
|
|
2679 | { |
|
|
2680 | ev_tstamp nat = at + w->interval; |
|
|
2681 | |
|
|
2682 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2683 | if (expect_false (nat == at)) |
|
|
2684 | { |
|
|
2685 | at = ev_rt_now; |
|
|
2686 | break; |
|
|
2687 | } |
|
|
2688 | |
|
|
2689 | at = nat; |
|
|
2690 | } |
|
|
2691 | |
|
|
2692 | ev_at (w) = at; |
|
|
2693 | } |
|
|
2694 | |
|
|
2695 | /* make periodics pending */ |
1823 | inline_size void |
2696 | inline_size void |
1824 | periodics_reify (EV_P) |
2697 | periodics_reify (EV_P) |
1825 | { |
2698 | { |
1826 | EV_FREQUENT_CHECK; |
2699 | EV_FREQUENT_CHECK; |
1827 | |
2700 | |
… | |
… | |
1845 | ANHE_at_cache (periodics [HEAP0]); |
2718 | ANHE_at_cache (periodics [HEAP0]); |
1846 | downheap (periodics, periodiccnt, HEAP0); |
2719 | downheap (periodics, periodiccnt, HEAP0); |
1847 | } |
2720 | } |
1848 | else if (w->interval) |
2721 | else if (w->interval) |
1849 | { |
2722 | { |
1850 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2723 | periodic_recalc (EV_A_ w); |
1851 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1852 | /* this might happen because of floating point inexactness */ |
|
|
1853 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1854 | { |
|
|
1855 | ev_at (w) += w->interval; |
|
|
1856 | |
|
|
1857 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1858 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1859 | /* has effectively asked to get triggered more often than possible */ |
|
|
1860 | if (ev_at (w) < ev_rt_now) |
|
|
1861 | ev_at (w) = ev_rt_now; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | ANHE_at_cache (periodics [HEAP0]); |
2724 | ANHE_at_cache (periodics [HEAP0]); |
1865 | downheap (periodics, periodiccnt, HEAP0); |
2725 | downheap (periodics, periodiccnt, HEAP0); |
1866 | } |
2726 | } |
1867 | else |
2727 | else |
1868 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2728 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
1874 | |
2734 | |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2735 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1876 | } |
2736 | } |
1877 | } |
2737 | } |
1878 | |
2738 | |
|
|
2739 | /* simply recalculate all periodics */ |
|
|
2740 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1879 | static void noinline |
2741 | static void noinline ecb_cold |
1880 | periodics_reschedule (EV_P) |
2742 | periodics_reschedule (EV_P) |
1881 | { |
2743 | { |
1882 | int i; |
2744 | int i; |
1883 | |
2745 | |
1884 | /* adjust periodics after time jump */ |
2746 | /* adjust periodics after time jump */ |
… | |
… | |
1887 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2749 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1888 | |
2750 | |
1889 | if (w->reschedule_cb) |
2751 | if (w->reschedule_cb) |
1890 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2752 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1891 | else if (w->interval) |
2753 | else if (w->interval) |
1892 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2754 | periodic_recalc (EV_A_ w); |
1893 | |
2755 | |
1894 | ANHE_at_cache (periodics [i]); |
2756 | ANHE_at_cache (periodics [i]); |
1895 | } |
2757 | } |
1896 | |
2758 | |
1897 | reheap (periodics, periodiccnt); |
2759 | reheap (periodics, periodiccnt); |
1898 | } |
2760 | } |
1899 | #endif |
2761 | #endif |
1900 | |
2762 | |
|
|
2763 | /* adjust all timers by a given offset */ |
1901 | static void noinline |
2764 | static void noinline ecb_cold |
1902 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2765 | timers_reschedule (EV_P_ ev_tstamp adjust) |
1903 | { |
2766 | { |
1904 | int i; |
2767 | int i; |
1905 | |
2768 | |
1906 | for (i = 0; i < timercnt; ++i) |
2769 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
1909 | ANHE_w (*he)->at += adjust; |
2772 | ANHE_w (*he)->at += adjust; |
1910 | ANHE_at_cache (*he); |
2773 | ANHE_at_cache (*he); |
1911 | } |
2774 | } |
1912 | } |
2775 | } |
1913 | |
2776 | |
|
|
2777 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2778 | /* also detect if there was a timejump, and act accordingly */ |
1914 | inline_speed void |
2779 | inline_speed void |
1915 | time_update (EV_P_ ev_tstamp max_block) |
2780 | time_update (EV_P_ ev_tstamp max_block) |
1916 | { |
2781 | { |
1917 | int i; |
|
|
1918 | |
|
|
1919 | #if EV_USE_MONOTONIC |
2782 | #if EV_USE_MONOTONIC |
1920 | if (expect_true (have_monotonic)) |
2783 | if (expect_true (have_monotonic)) |
1921 | { |
2784 | { |
|
|
2785 | int i; |
1922 | ev_tstamp odiff = rtmn_diff; |
2786 | ev_tstamp odiff = rtmn_diff; |
1923 | |
2787 | |
1924 | mn_now = get_clock (); |
2788 | mn_now = get_clock (); |
1925 | |
2789 | |
1926 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2790 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1942 | * doesn't hurt either as we only do this on time-jumps or |
2806 | * doesn't hurt either as we only do this on time-jumps or |
1943 | * in the unlikely event of having been preempted here. |
2807 | * in the unlikely event of having been preempted here. |
1944 | */ |
2808 | */ |
1945 | for (i = 4; --i; ) |
2809 | for (i = 4; --i; ) |
1946 | { |
2810 | { |
|
|
2811 | ev_tstamp diff; |
1947 | rtmn_diff = ev_rt_now - mn_now; |
2812 | rtmn_diff = ev_rt_now - mn_now; |
1948 | |
2813 | |
|
|
2814 | diff = odiff - rtmn_diff; |
|
|
2815 | |
1949 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2816 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1950 | return; /* all is well */ |
2817 | return; /* all is well */ |
1951 | |
2818 | |
1952 | ev_rt_now = ev_time (); |
2819 | ev_rt_now = ev_time (); |
1953 | mn_now = get_clock (); |
2820 | mn_now = get_clock (); |
1954 | now_floor = mn_now; |
2821 | now_floor = mn_now; |
… | |
… | |
1976 | |
2843 | |
1977 | mn_now = ev_rt_now; |
2844 | mn_now = ev_rt_now; |
1978 | } |
2845 | } |
1979 | } |
2846 | } |
1980 | |
2847 | |
1981 | static int loop_done; |
|
|
1982 | |
|
|
1983 | void |
2848 | void |
1984 | ev_loop (EV_P_ int flags) |
2849 | ev_run (EV_P_ int flags) |
1985 | { |
2850 | { |
|
|
2851 | #if EV_FEATURE_API |
|
|
2852 | ++loop_depth; |
|
|
2853 | #endif |
|
|
2854 | |
|
|
2855 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2856 | |
1986 | loop_done = EVUNLOOP_CANCEL; |
2857 | loop_done = EVBREAK_CANCEL; |
1987 | |
2858 | |
1988 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2859 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1989 | |
2860 | |
1990 | do |
2861 | do |
1991 | { |
2862 | { |
1992 | #if EV_VERIFY >= 2 |
2863 | #if EV_VERIFY >= 2 |
1993 | ev_loop_verify (EV_A); |
2864 | ev_verify (EV_A); |
1994 | #endif |
2865 | #endif |
1995 | |
2866 | |
1996 | #ifndef _WIN32 |
2867 | #ifndef _WIN32 |
1997 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2868 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1998 | if (expect_false (getpid () != curpid)) |
2869 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2006 | /* we might have forked, so queue fork handlers */ |
2877 | /* we might have forked, so queue fork handlers */ |
2007 | if (expect_false (postfork)) |
2878 | if (expect_false (postfork)) |
2008 | if (forkcnt) |
2879 | if (forkcnt) |
2009 | { |
2880 | { |
2010 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2881 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2011 | call_pending (EV_A); |
2882 | EV_INVOKE_PENDING; |
2012 | } |
2883 | } |
2013 | #endif |
2884 | #endif |
2014 | |
2885 | |
|
|
2886 | #if EV_PREPARE_ENABLE |
2015 | /* queue prepare watchers (and execute them) */ |
2887 | /* queue prepare watchers (and execute them) */ |
2016 | if (expect_false (preparecnt)) |
2888 | if (expect_false (preparecnt)) |
2017 | { |
2889 | { |
2018 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2890 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2019 | call_pending (EV_A); |
2891 | EV_INVOKE_PENDING; |
2020 | } |
2892 | } |
|
|
2893 | #endif |
|
|
2894 | |
|
|
2895 | if (expect_false (loop_done)) |
|
|
2896 | break; |
2021 | |
2897 | |
2022 | /* we might have forked, so reify kernel state if necessary */ |
2898 | /* we might have forked, so reify kernel state if necessary */ |
2023 | if (expect_false (postfork)) |
2899 | if (expect_false (postfork)) |
2024 | loop_fork (EV_A); |
2900 | loop_fork (EV_A); |
2025 | |
2901 | |
… | |
… | |
2029 | /* calculate blocking time */ |
2905 | /* calculate blocking time */ |
2030 | { |
2906 | { |
2031 | ev_tstamp waittime = 0.; |
2907 | ev_tstamp waittime = 0.; |
2032 | ev_tstamp sleeptime = 0.; |
2908 | ev_tstamp sleeptime = 0.; |
2033 | |
2909 | |
|
|
2910 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2911 | ev_tstamp prev_mn_now = mn_now; |
|
|
2912 | |
|
|
2913 | /* update time to cancel out callback processing overhead */ |
|
|
2914 | time_update (EV_A_ 1e100); |
|
|
2915 | |
|
|
2916 | /* from now on, we want a pipe-wake-up */ |
|
|
2917 | pipe_write_wanted = 1; |
|
|
2918 | |
|
|
2919 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2920 | |
2034 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2921 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2035 | { |
2922 | { |
2036 | /* update time to cancel out callback processing overhead */ |
|
|
2037 | time_update (EV_A_ 1e100); |
|
|
2038 | |
|
|
2039 | waittime = MAX_BLOCKTIME; |
2923 | waittime = MAX_BLOCKTIME; |
2040 | |
2924 | |
2041 | if (timercnt) |
2925 | if (timercnt) |
2042 | { |
2926 | { |
2043 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2927 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2044 | if (waittime > to) waittime = to; |
2928 | if (waittime > to) waittime = to; |
2045 | } |
2929 | } |
2046 | |
2930 | |
2047 | #if EV_PERIODIC_ENABLE |
2931 | #if EV_PERIODIC_ENABLE |
2048 | if (periodiccnt) |
2932 | if (periodiccnt) |
2049 | { |
2933 | { |
2050 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2934 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2051 | if (waittime > to) waittime = to; |
2935 | if (waittime > to) waittime = to; |
2052 | } |
2936 | } |
2053 | #endif |
2937 | #endif |
2054 | |
2938 | |
|
|
2939 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2055 | if (expect_false (waittime < timeout_blocktime)) |
2940 | if (expect_false (waittime < timeout_blocktime)) |
2056 | waittime = timeout_blocktime; |
2941 | waittime = timeout_blocktime; |
2057 | |
2942 | |
2058 | sleeptime = waittime - backend_fudge; |
2943 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
2944 | /* to pass a minimum nonzero value to the backend */ |
|
|
2945 | if (expect_false (waittime < backend_mintime)) |
|
|
2946 | waittime = backend_mintime; |
2059 | |
2947 | |
|
|
2948 | /* extra check because io_blocktime is commonly 0 */ |
2060 | if (expect_true (sleeptime > io_blocktime)) |
2949 | if (expect_false (io_blocktime)) |
2061 | sleeptime = io_blocktime; |
|
|
2062 | |
|
|
2063 | if (sleeptime) |
|
|
2064 | { |
2950 | { |
|
|
2951 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2952 | |
|
|
2953 | if (sleeptime > waittime - backend_mintime) |
|
|
2954 | sleeptime = waittime - backend_mintime; |
|
|
2955 | |
|
|
2956 | if (expect_true (sleeptime > 0.)) |
|
|
2957 | { |
2065 | ev_sleep (sleeptime); |
2958 | ev_sleep (sleeptime); |
2066 | waittime -= sleeptime; |
2959 | waittime -= sleeptime; |
|
|
2960 | } |
2067 | } |
2961 | } |
2068 | } |
2962 | } |
2069 | |
2963 | |
|
|
2964 | #if EV_FEATURE_API |
2070 | ++loop_count; |
2965 | ++loop_count; |
|
|
2966 | #endif |
|
|
2967 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2071 | backend_poll (EV_A_ waittime); |
2968 | backend_poll (EV_A_ waittime); |
|
|
2969 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2970 | |
|
|
2971 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
|
|
2972 | |
|
|
2973 | if (pipe_write_skipped) |
|
|
2974 | { |
|
|
2975 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
2976 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
2977 | } |
|
|
2978 | |
2072 | |
2979 | |
2073 | /* update ev_rt_now, do magic */ |
2980 | /* update ev_rt_now, do magic */ |
2074 | time_update (EV_A_ waittime + sleeptime); |
2981 | time_update (EV_A_ waittime + sleeptime); |
2075 | } |
2982 | } |
2076 | |
2983 | |
… | |
… | |
2083 | #if EV_IDLE_ENABLE |
2990 | #if EV_IDLE_ENABLE |
2084 | /* queue idle watchers unless other events are pending */ |
2991 | /* queue idle watchers unless other events are pending */ |
2085 | idle_reify (EV_A); |
2992 | idle_reify (EV_A); |
2086 | #endif |
2993 | #endif |
2087 | |
2994 | |
|
|
2995 | #if EV_CHECK_ENABLE |
2088 | /* queue check watchers, to be executed first */ |
2996 | /* queue check watchers, to be executed first */ |
2089 | if (expect_false (checkcnt)) |
2997 | if (expect_false (checkcnt)) |
2090 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2998 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2999 | #endif |
2091 | |
3000 | |
2092 | call_pending (EV_A); |
3001 | EV_INVOKE_PENDING; |
2093 | } |
3002 | } |
2094 | while (expect_true ( |
3003 | while (expect_true ( |
2095 | activecnt |
3004 | activecnt |
2096 | && !loop_done |
3005 | && !loop_done |
2097 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3006 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2098 | )); |
3007 | )); |
2099 | |
3008 | |
2100 | if (loop_done == EVUNLOOP_ONE) |
3009 | if (loop_done == EVBREAK_ONE) |
2101 | loop_done = EVUNLOOP_CANCEL; |
3010 | loop_done = EVBREAK_CANCEL; |
|
|
3011 | |
|
|
3012 | #if EV_FEATURE_API |
|
|
3013 | --loop_depth; |
|
|
3014 | #endif |
2102 | } |
3015 | } |
2103 | |
3016 | |
2104 | void |
3017 | void |
2105 | ev_unloop (EV_P_ int how) |
3018 | ev_break (EV_P_ int how) |
2106 | { |
3019 | { |
2107 | loop_done = how; |
3020 | loop_done = how; |
2108 | } |
3021 | } |
2109 | |
3022 | |
2110 | void |
3023 | void |
… | |
… | |
2137 | ev_tstamp mn_prev = mn_now; |
3050 | ev_tstamp mn_prev = mn_now; |
2138 | |
3051 | |
2139 | ev_now_update (EV_A); |
3052 | ev_now_update (EV_A); |
2140 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3053 | timers_reschedule (EV_A_ mn_now - mn_prev); |
2141 | #if EV_PERIODIC_ENABLE |
3054 | #if EV_PERIODIC_ENABLE |
|
|
3055 | /* TODO: really do this? */ |
2142 | periodics_reschedule (EV_A); |
3056 | periodics_reschedule (EV_A); |
2143 | #endif |
3057 | #endif |
2144 | } |
3058 | } |
2145 | |
3059 | |
2146 | /*****************************************************************************/ |
3060 | /*****************************************************************************/ |
|
|
3061 | /* singly-linked list management, used when the expected list length is short */ |
2147 | |
3062 | |
2148 | inline_size void |
3063 | inline_size void |
2149 | wlist_add (WL *head, WL elem) |
3064 | wlist_add (WL *head, WL elem) |
2150 | { |
3065 | { |
2151 | elem->next = *head; |
3066 | elem->next = *head; |
… | |
… | |
2155 | inline_size void |
3070 | inline_size void |
2156 | wlist_del (WL *head, WL elem) |
3071 | wlist_del (WL *head, WL elem) |
2157 | { |
3072 | { |
2158 | while (*head) |
3073 | while (*head) |
2159 | { |
3074 | { |
2160 | if (*head == elem) |
3075 | if (expect_true (*head == elem)) |
2161 | { |
3076 | { |
2162 | *head = elem->next; |
3077 | *head = elem->next; |
2163 | return; |
3078 | break; |
2164 | } |
3079 | } |
2165 | |
3080 | |
2166 | head = &(*head)->next; |
3081 | head = &(*head)->next; |
2167 | } |
3082 | } |
2168 | } |
3083 | } |
2169 | |
3084 | |
|
|
3085 | /* internal, faster, version of ev_clear_pending */ |
2170 | inline_speed void |
3086 | inline_speed void |
2171 | clear_pending (EV_P_ W w) |
3087 | clear_pending (EV_P_ W w) |
2172 | { |
3088 | { |
2173 | if (w->pending) |
3089 | if (w->pending) |
2174 | { |
3090 | { |
2175 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3091 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2176 | w->pending = 0; |
3092 | w->pending = 0; |
2177 | } |
3093 | } |
2178 | } |
3094 | } |
2179 | |
3095 | |
2180 | int |
3096 | int |
… | |
… | |
2184 | int pending = w_->pending; |
3100 | int pending = w_->pending; |
2185 | |
3101 | |
2186 | if (expect_true (pending)) |
3102 | if (expect_true (pending)) |
2187 | { |
3103 | { |
2188 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3104 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3105 | p->w = (W)&pending_w; |
2189 | w_->pending = 0; |
3106 | w_->pending = 0; |
2190 | p->w = 0; |
|
|
2191 | return p->events; |
3107 | return p->events; |
2192 | } |
3108 | } |
2193 | else |
3109 | else |
2194 | return 0; |
3110 | return 0; |
2195 | } |
3111 | } |
2196 | |
3112 | |
2197 | inline_size void |
3113 | inline_size void |
2198 | pri_adjust (EV_P_ W w) |
3114 | pri_adjust (EV_P_ W w) |
2199 | { |
3115 | { |
2200 | int pri = w->priority; |
3116 | int pri = ev_priority (w); |
2201 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3117 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2202 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3118 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2203 | w->priority = pri; |
3119 | ev_set_priority (w, pri); |
2204 | } |
3120 | } |
2205 | |
3121 | |
2206 | inline_speed void |
3122 | inline_speed void |
2207 | ev_start (EV_P_ W w, int active) |
3123 | ev_start (EV_P_ W w, int active) |
2208 | { |
3124 | { |
… | |
… | |
2227 | |
3143 | |
2228 | if (expect_false (ev_is_active (w))) |
3144 | if (expect_false (ev_is_active (w))) |
2229 | return; |
3145 | return; |
2230 | |
3146 | |
2231 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3147 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2232 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3148 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2233 | |
3149 | |
2234 | EV_FREQUENT_CHECK; |
3150 | EV_FREQUENT_CHECK; |
2235 | |
3151 | |
2236 | ev_start (EV_A_ (W)w, 1); |
3152 | ev_start (EV_A_ (W)w, 1); |
2237 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3153 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2238 | wlist_add (&anfds[fd].head, (WL)w); |
3154 | wlist_add (&anfds[fd].head, (WL)w); |
2239 | |
3155 | |
2240 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
3156 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2241 | w->events &= ~EV__IOFDSET; |
3157 | w->events &= ~EV__IOFDSET; |
2242 | |
3158 | |
2243 | EV_FREQUENT_CHECK; |
3159 | EV_FREQUENT_CHECK; |
2244 | } |
3160 | } |
2245 | |
3161 | |
… | |
… | |
2255 | EV_FREQUENT_CHECK; |
3171 | EV_FREQUENT_CHECK; |
2256 | |
3172 | |
2257 | wlist_del (&anfds[w->fd].head, (WL)w); |
3173 | wlist_del (&anfds[w->fd].head, (WL)w); |
2258 | ev_stop (EV_A_ (W)w); |
3174 | ev_stop (EV_A_ (W)w); |
2259 | |
3175 | |
2260 | fd_change (EV_A_ w->fd, 1); |
3176 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2261 | |
3177 | |
2262 | EV_FREQUENT_CHECK; |
3178 | EV_FREQUENT_CHECK; |
2263 | } |
3179 | } |
2264 | |
3180 | |
2265 | void noinline |
3181 | void noinline |
… | |
… | |
2307 | timers [active] = timers [timercnt + HEAP0]; |
3223 | timers [active] = timers [timercnt + HEAP0]; |
2308 | adjustheap (timers, timercnt, active); |
3224 | adjustheap (timers, timercnt, active); |
2309 | } |
3225 | } |
2310 | } |
3226 | } |
2311 | |
3227 | |
2312 | EV_FREQUENT_CHECK; |
|
|
2313 | |
|
|
2314 | ev_at (w) -= mn_now; |
3228 | ev_at (w) -= mn_now; |
2315 | |
3229 | |
2316 | ev_stop (EV_A_ (W)w); |
3230 | ev_stop (EV_A_ (W)w); |
|
|
3231 | |
|
|
3232 | EV_FREQUENT_CHECK; |
2317 | } |
3233 | } |
2318 | |
3234 | |
2319 | void noinline |
3235 | void noinline |
2320 | ev_timer_again (EV_P_ ev_timer *w) |
3236 | ev_timer_again (EV_P_ ev_timer *w) |
2321 | { |
3237 | { |
… | |
… | |
2339 | } |
3255 | } |
2340 | |
3256 | |
2341 | EV_FREQUENT_CHECK; |
3257 | EV_FREQUENT_CHECK; |
2342 | } |
3258 | } |
2343 | |
3259 | |
|
|
3260 | ev_tstamp |
|
|
3261 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
3262 | { |
|
|
3263 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
3264 | } |
|
|
3265 | |
2344 | #if EV_PERIODIC_ENABLE |
3266 | #if EV_PERIODIC_ENABLE |
2345 | void noinline |
3267 | void noinline |
2346 | ev_periodic_start (EV_P_ ev_periodic *w) |
3268 | ev_periodic_start (EV_P_ ev_periodic *w) |
2347 | { |
3269 | { |
2348 | if (expect_false (ev_is_active (w))) |
3270 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2351 | if (w->reschedule_cb) |
3273 | if (w->reschedule_cb) |
2352 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3274 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2353 | else if (w->interval) |
3275 | else if (w->interval) |
2354 | { |
3276 | { |
2355 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3277 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2356 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3278 | periodic_recalc (EV_A_ w); |
2357 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2358 | } |
3279 | } |
2359 | else |
3280 | else |
2360 | ev_at (w) = w->offset; |
3281 | ev_at (w) = w->offset; |
2361 | |
3282 | |
2362 | EV_FREQUENT_CHECK; |
3283 | EV_FREQUENT_CHECK; |
… | |
… | |
2394 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3315 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2395 | adjustheap (periodics, periodiccnt, active); |
3316 | adjustheap (periodics, periodiccnt, active); |
2396 | } |
3317 | } |
2397 | } |
3318 | } |
2398 | |
3319 | |
2399 | EV_FREQUENT_CHECK; |
|
|
2400 | |
|
|
2401 | ev_stop (EV_A_ (W)w); |
3320 | ev_stop (EV_A_ (W)w); |
|
|
3321 | |
|
|
3322 | EV_FREQUENT_CHECK; |
2402 | } |
3323 | } |
2403 | |
3324 | |
2404 | void noinline |
3325 | void noinline |
2405 | ev_periodic_again (EV_P_ ev_periodic *w) |
3326 | ev_periodic_again (EV_P_ ev_periodic *w) |
2406 | { |
3327 | { |
… | |
… | |
2412 | |
3333 | |
2413 | #ifndef SA_RESTART |
3334 | #ifndef SA_RESTART |
2414 | # define SA_RESTART 0 |
3335 | # define SA_RESTART 0 |
2415 | #endif |
3336 | #endif |
2416 | |
3337 | |
|
|
3338 | #if EV_SIGNAL_ENABLE |
|
|
3339 | |
2417 | void noinline |
3340 | void noinline |
2418 | ev_signal_start (EV_P_ ev_signal *w) |
3341 | ev_signal_start (EV_P_ ev_signal *w) |
2419 | { |
3342 | { |
2420 | #if EV_MULTIPLICITY |
|
|
2421 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2422 | #endif |
|
|
2423 | if (expect_false (ev_is_active (w))) |
3343 | if (expect_false (ev_is_active (w))) |
2424 | return; |
3344 | return; |
2425 | |
3345 | |
2426 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
3346 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2427 | |
3347 | |
2428 | evpipe_init (EV_A); |
3348 | #if EV_MULTIPLICITY |
|
|
3349 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3350 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2429 | |
3351 | |
2430 | EV_FREQUENT_CHECK; |
3352 | signals [w->signum - 1].loop = EV_A; |
|
|
3353 | #endif |
2431 | |
3354 | |
|
|
3355 | EV_FREQUENT_CHECK; |
|
|
3356 | |
|
|
3357 | #if EV_USE_SIGNALFD |
|
|
3358 | if (sigfd == -2) |
2432 | { |
3359 | { |
2433 | #ifndef _WIN32 |
3360 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2434 | sigset_t full, prev; |
3361 | if (sigfd < 0 && errno == EINVAL) |
2435 | sigfillset (&full); |
3362 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2436 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2437 | #endif |
|
|
2438 | |
3363 | |
2439 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
3364 | if (sigfd >= 0) |
|
|
3365 | { |
|
|
3366 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2440 | |
3367 | |
2441 | #ifndef _WIN32 |
3368 | sigemptyset (&sigfd_set); |
2442 | sigprocmask (SIG_SETMASK, &prev, 0); |
3369 | |
2443 | #endif |
3370 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3371 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3372 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3373 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3374 | } |
2444 | } |
3375 | } |
|
|
3376 | |
|
|
3377 | if (sigfd >= 0) |
|
|
3378 | { |
|
|
3379 | /* TODO: check .head */ |
|
|
3380 | sigaddset (&sigfd_set, w->signum); |
|
|
3381 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3382 | |
|
|
3383 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3384 | } |
|
|
3385 | #endif |
2445 | |
3386 | |
2446 | ev_start (EV_A_ (W)w, 1); |
3387 | ev_start (EV_A_ (W)w, 1); |
2447 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3388 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2448 | |
3389 | |
2449 | if (!((WL)w)->next) |
3390 | if (!((WL)w)->next) |
|
|
3391 | # if EV_USE_SIGNALFD |
|
|
3392 | if (sigfd < 0) /*TODO*/ |
|
|
3393 | # endif |
2450 | { |
3394 | { |
2451 | #if _WIN32 |
3395 | # ifdef _WIN32 |
|
|
3396 | evpipe_init (EV_A); |
|
|
3397 | |
2452 | signal (w->signum, ev_sighandler); |
3398 | signal (w->signum, ev_sighandler); |
2453 | #else |
3399 | # else |
2454 | struct sigaction sa; |
3400 | struct sigaction sa; |
|
|
3401 | |
|
|
3402 | evpipe_init (EV_A); |
|
|
3403 | |
2455 | sa.sa_handler = ev_sighandler; |
3404 | sa.sa_handler = ev_sighandler; |
2456 | sigfillset (&sa.sa_mask); |
3405 | sigfillset (&sa.sa_mask); |
2457 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3406 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2458 | sigaction (w->signum, &sa, 0); |
3407 | sigaction (w->signum, &sa, 0); |
|
|
3408 | |
|
|
3409 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3410 | { |
|
|
3411 | sigemptyset (&sa.sa_mask); |
|
|
3412 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3413 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3414 | } |
2459 | #endif |
3415 | #endif |
2460 | } |
3416 | } |
2461 | |
3417 | |
2462 | EV_FREQUENT_CHECK; |
3418 | EV_FREQUENT_CHECK; |
2463 | } |
3419 | } |
2464 | |
3420 | |
2465 | void noinline |
3421 | void noinline |
… | |
… | |
2473 | |
3429 | |
2474 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3430 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2475 | ev_stop (EV_A_ (W)w); |
3431 | ev_stop (EV_A_ (W)w); |
2476 | |
3432 | |
2477 | if (!signals [w->signum - 1].head) |
3433 | if (!signals [w->signum - 1].head) |
|
|
3434 | { |
|
|
3435 | #if EV_MULTIPLICITY |
|
|
3436 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3437 | #endif |
|
|
3438 | #if EV_USE_SIGNALFD |
|
|
3439 | if (sigfd >= 0) |
|
|
3440 | { |
|
|
3441 | sigset_t ss; |
|
|
3442 | |
|
|
3443 | sigemptyset (&ss); |
|
|
3444 | sigaddset (&ss, w->signum); |
|
|
3445 | sigdelset (&sigfd_set, w->signum); |
|
|
3446 | |
|
|
3447 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3448 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3449 | } |
|
|
3450 | else |
|
|
3451 | #endif |
2478 | signal (w->signum, SIG_DFL); |
3452 | signal (w->signum, SIG_DFL); |
|
|
3453 | } |
2479 | |
3454 | |
2480 | EV_FREQUENT_CHECK; |
3455 | EV_FREQUENT_CHECK; |
2481 | } |
3456 | } |
|
|
3457 | |
|
|
3458 | #endif |
|
|
3459 | |
|
|
3460 | #if EV_CHILD_ENABLE |
2482 | |
3461 | |
2483 | void |
3462 | void |
2484 | ev_child_start (EV_P_ ev_child *w) |
3463 | ev_child_start (EV_P_ ev_child *w) |
2485 | { |
3464 | { |
2486 | #if EV_MULTIPLICITY |
3465 | #if EV_MULTIPLICITY |
… | |
… | |
2490 | return; |
3469 | return; |
2491 | |
3470 | |
2492 | EV_FREQUENT_CHECK; |
3471 | EV_FREQUENT_CHECK; |
2493 | |
3472 | |
2494 | ev_start (EV_A_ (W)w, 1); |
3473 | ev_start (EV_A_ (W)w, 1); |
2495 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3474 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2496 | |
3475 | |
2497 | EV_FREQUENT_CHECK; |
3476 | EV_FREQUENT_CHECK; |
2498 | } |
3477 | } |
2499 | |
3478 | |
2500 | void |
3479 | void |
… | |
… | |
2504 | if (expect_false (!ev_is_active (w))) |
3483 | if (expect_false (!ev_is_active (w))) |
2505 | return; |
3484 | return; |
2506 | |
3485 | |
2507 | EV_FREQUENT_CHECK; |
3486 | EV_FREQUENT_CHECK; |
2508 | |
3487 | |
2509 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3488 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2510 | ev_stop (EV_A_ (W)w); |
3489 | ev_stop (EV_A_ (W)w); |
2511 | |
3490 | |
2512 | EV_FREQUENT_CHECK; |
3491 | EV_FREQUENT_CHECK; |
2513 | } |
3492 | } |
|
|
3493 | |
|
|
3494 | #endif |
2514 | |
3495 | |
2515 | #if EV_STAT_ENABLE |
3496 | #if EV_STAT_ENABLE |
2516 | |
3497 | |
2517 | # ifdef _WIN32 |
3498 | # ifdef _WIN32 |
2518 | # undef lstat |
3499 | # undef lstat |
… | |
… | |
2524 | #define MIN_STAT_INTERVAL 0.1074891 |
3505 | #define MIN_STAT_INTERVAL 0.1074891 |
2525 | |
3506 | |
2526 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3507 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2527 | |
3508 | |
2528 | #if EV_USE_INOTIFY |
3509 | #if EV_USE_INOTIFY |
2529 | # define EV_INOTIFY_BUFSIZE 8192 |
3510 | |
|
|
3511 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3512 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2530 | |
3513 | |
2531 | static void noinline |
3514 | static void noinline |
2532 | infy_add (EV_P_ ev_stat *w) |
3515 | infy_add (EV_P_ ev_stat *w) |
2533 | { |
3516 | { |
2534 | 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); |
3517 | 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); |
2535 | |
3518 | |
2536 | if (w->wd < 0) |
3519 | if (w->wd >= 0) |
|
|
3520 | { |
|
|
3521 | struct statfs sfs; |
|
|
3522 | |
|
|
3523 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3524 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3525 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3526 | |
|
|
3527 | if (!fs_2625) |
|
|
3528 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3529 | else if (!statfs (w->path, &sfs) |
|
|
3530 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3531 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3532 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3533 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3534 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3535 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3536 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3537 | else |
|
|
3538 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2537 | { |
3539 | } |
|
|
3540 | else |
|
|
3541 | { |
|
|
3542 | /* can't use inotify, continue to stat */ |
2538 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3543 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2539 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2540 | |
3544 | |
2541 | /* monitor some parent directory for speedup hints */ |
3545 | /* if path is not there, monitor some parent directory for speedup hints */ |
2542 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3546 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2543 | /* but an efficiency issue only */ |
3547 | /* but an efficiency issue only */ |
2544 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3548 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2545 | { |
3549 | { |
2546 | char path [4096]; |
3550 | char path [4096]; |
… | |
… | |
2556 | if (!pend || pend == path) |
3560 | if (!pend || pend == path) |
2557 | break; |
3561 | break; |
2558 | |
3562 | |
2559 | *pend = 0; |
3563 | *pend = 0; |
2560 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3564 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2561 | } |
3565 | } |
2562 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3566 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2563 | } |
3567 | } |
2564 | } |
3568 | } |
2565 | |
3569 | |
2566 | if (w->wd >= 0) |
3570 | if (w->wd >= 0) |
2567 | { |
|
|
2568 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3571 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2569 | |
3572 | |
2570 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3573 | /* now re-arm timer, if required */ |
2571 | /* unless the filesystem it known to be local, we therefore still poll */ |
3574 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2572 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2573 | struct statfs sfs; |
|
|
2574 | |
|
|
2575 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2576 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2577 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2578 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2579 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2580 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2581 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2582 | return; |
|
|
2583 | |
|
|
2584 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2585 | ev_timer_again (EV_A_ &w->timer); |
3575 | ev_timer_again (EV_A_ &w->timer); |
2586 | } |
3576 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2587 | } |
3577 | } |
2588 | |
3578 | |
2589 | static void noinline |
3579 | static void noinline |
2590 | infy_del (EV_P_ ev_stat *w) |
3580 | infy_del (EV_P_ ev_stat *w) |
2591 | { |
3581 | { |
… | |
… | |
2594 | |
3584 | |
2595 | if (wd < 0) |
3585 | if (wd < 0) |
2596 | return; |
3586 | return; |
2597 | |
3587 | |
2598 | w->wd = -2; |
3588 | w->wd = -2; |
2599 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3589 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2600 | wlist_del (&fs_hash [slot].head, (WL)w); |
3590 | wlist_del (&fs_hash [slot].head, (WL)w); |
2601 | |
3591 | |
2602 | /* remove this watcher, if others are watching it, they will rearm */ |
3592 | /* remove this watcher, if others are watching it, they will rearm */ |
2603 | inotify_rm_watch (fs_fd, wd); |
3593 | inotify_rm_watch (fs_fd, wd); |
2604 | } |
3594 | } |
… | |
… | |
2606 | static void noinline |
3596 | static void noinline |
2607 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3597 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2608 | { |
3598 | { |
2609 | if (slot < 0) |
3599 | if (slot < 0) |
2610 | /* overflow, need to check for all hash slots */ |
3600 | /* overflow, need to check for all hash slots */ |
2611 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3601 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2612 | infy_wd (EV_A_ slot, wd, ev); |
3602 | infy_wd (EV_A_ slot, wd, ev); |
2613 | else |
3603 | else |
2614 | { |
3604 | { |
2615 | WL w_; |
3605 | WL w_; |
2616 | |
3606 | |
2617 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3607 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2618 | { |
3608 | { |
2619 | ev_stat *w = (ev_stat *)w_; |
3609 | ev_stat *w = (ev_stat *)w_; |
2620 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3610 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2621 | |
3611 | |
2622 | if (w->wd == wd || wd == -1) |
3612 | if (w->wd == wd || wd == -1) |
2623 | { |
3613 | { |
2624 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3614 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2625 | { |
3615 | { |
2626 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3616 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2627 | w->wd = -1; |
3617 | w->wd = -1; |
2628 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3618 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2629 | } |
3619 | } |
2630 | |
3620 | |
2631 | stat_timer_cb (EV_A_ &w->timer, 0); |
3621 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2636 | |
3626 | |
2637 | static void |
3627 | static void |
2638 | infy_cb (EV_P_ ev_io *w, int revents) |
3628 | infy_cb (EV_P_ ev_io *w, int revents) |
2639 | { |
3629 | { |
2640 | char buf [EV_INOTIFY_BUFSIZE]; |
3630 | char buf [EV_INOTIFY_BUFSIZE]; |
2641 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2642 | int ofs; |
3631 | int ofs; |
2643 | int len = read (fs_fd, buf, sizeof (buf)); |
3632 | int len = read (fs_fd, buf, sizeof (buf)); |
2644 | |
3633 | |
2645 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3634 | for (ofs = 0; ofs < len; ) |
|
|
3635 | { |
|
|
3636 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2646 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3637 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3638 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3639 | } |
2647 | } |
3640 | } |
2648 | |
3641 | |
2649 | inline_size void |
3642 | inline_size void ecb_cold |
2650 | check_2625 (EV_P) |
3643 | ev_check_2625 (EV_P) |
2651 | { |
3644 | { |
2652 | /* kernels < 2.6.25 are borked |
3645 | /* kernels < 2.6.25 are borked |
2653 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3646 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2654 | */ |
3647 | */ |
2655 | struct utsname buf; |
3648 | if (ev_linux_version () < 0x020619) |
2656 | int major, minor, micro; |
|
|
2657 | |
|
|
2658 | if (uname (&buf)) |
|
|
2659 | return; |
3649 | return; |
2660 | |
3650 | |
2661 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2662 | return; |
|
|
2663 | |
|
|
2664 | if (major < 2 |
|
|
2665 | || (major == 2 && minor < 6) |
|
|
2666 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2667 | return; |
|
|
2668 | |
|
|
2669 | fs_2625 = 1; |
3651 | fs_2625 = 1; |
|
|
3652 | } |
|
|
3653 | |
|
|
3654 | inline_size int |
|
|
3655 | infy_newfd (void) |
|
|
3656 | { |
|
|
3657 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3658 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3659 | if (fd >= 0) |
|
|
3660 | return fd; |
|
|
3661 | #endif |
|
|
3662 | return inotify_init (); |
2670 | } |
3663 | } |
2671 | |
3664 | |
2672 | inline_size void |
3665 | inline_size void |
2673 | infy_init (EV_P) |
3666 | infy_init (EV_P) |
2674 | { |
3667 | { |
2675 | if (fs_fd != -2) |
3668 | if (fs_fd != -2) |
2676 | return; |
3669 | return; |
2677 | |
3670 | |
2678 | fs_fd = -1; |
3671 | fs_fd = -1; |
2679 | |
3672 | |
2680 | check_2625 (EV_A); |
3673 | ev_check_2625 (EV_A); |
2681 | |
3674 | |
2682 | fs_fd = inotify_init (); |
3675 | fs_fd = infy_newfd (); |
2683 | |
3676 | |
2684 | if (fs_fd >= 0) |
3677 | if (fs_fd >= 0) |
2685 | { |
3678 | { |
|
|
3679 | fd_intern (fs_fd); |
2686 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3680 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2687 | ev_set_priority (&fs_w, EV_MAXPRI); |
3681 | ev_set_priority (&fs_w, EV_MAXPRI); |
2688 | ev_io_start (EV_A_ &fs_w); |
3682 | ev_io_start (EV_A_ &fs_w); |
|
|
3683 | ev_unref (EV_A); |
2689 | } |
3684 | } |
2690 | } |
3685 | } |
2691 | |
3686 | |
2692 | inline_size void |
3687 | inline_size void |
2693 | infy_fork (EV_P) |
3688 | infy_fork (EV_P) |
… | |
… | |
2695 | int slot; |
3690 | int slot; |
2696 | |
3691 | |
2697 | if (fs_fd < 0) |
3692 | if (fs_fd < 0) |
2698 | return; |
3693 | return; |
2699 | |
3694 | |
|
|
3695 | ev_ref (EV_A); |
|
|
3696 | ev_io_stop (EV_A_ &fs_w); |
2700 | close (fs_fd); |
3697 | close (fs_fd); |
2701 | fs_fd = inotify_init (); |
3698 | fs_fd = infy_newfd (); |
2702 | |
3699 | |
|
|
3700 | if (fs_fd >= 0) |
|
|
3701 | { |
|
|
3702 | fd_intern (fs_fd); |
|
|
3703 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3704 | ev_io_start (EV_A_ &fs_w); |
|
|
3705 | ev_unref (EV_A); |
|
|
3706 | } |
|
|
3707 | |
2703 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3708 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2704 | { |
3709 | { |
2705 | WL w_ = fs_hash [slot].head; |
3710 | WL w_ = fs_hash [slot].head; |
2706 | fs_hash [slot].head = 0; |
3711 | fs_hash [slot].head = 0; |
2707 | |
3712 | |
2708 | while (w_) |
3713 | while (w_) |
… | |
… | |
2713 | w->wd = -1; |
3718 | w->wd = -1; |
2714 | |
3719 | |
2715 | if (fs_fd >= 0) |
3720 | if (fs_fd >= 0) |
2716 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3721 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2717 | else |
3722 | else |
|
|
3723 | { |
|
|
3724 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3725 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2718 | ev_timer_again (EV_A_ &w->timer); |
3726 | ev_timer_again (EV_A_ &w->timer); |
|
|
3727 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3728 | } |
2719 | } |
3729 | } |
2720 | } |
3730 | } |
2721 | } |
3731 | } |
2722 | |
3732 | |
2723 | #endif |
3733 | #endif |
… | |
… | |
2740 | static void noinline |
3750 | static void noinline |
2741 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3751 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2742 | { |
3752 | { |
2743 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3753 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2744 | |
3754 | |
2745 | /* we copy this here each the time so that */ |
3755 | ev_statdata prev = w->attr; |
2746 | /* prev has the old value when the callback gets invoked */ |
|
|
2747 | w->prev = w->attr; |
|
|
2748 | ev_stat_stat (EV_A_ w); |
3756 | ev_stat_stat (EV_A_ w); |
2749 | |
3757 | |
2750 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3758 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2751 | if ( |
3759 | if ( |
2752 | w->prev.st_dev != w->attr.st_dev |
3760 | prev.st_dev != w->attr.st_dev |
2753 | || w->prev.st_ino != w->attr.st_ino |
3761 | || prev.st_ino != w->attr.st_ino |
2754 | || w->prev.st_mode != w->attr.st_mode |
3762 | || prev.st_mode != w->attr.st_mode |
2755 | || w->prev.st_nlink != w->attr.st_nlink |
3763 | || prev.st_nlink != w->attr.st_nlink |
2756 | || w->prev.st_uid != w->attr.st_uid |
3764 | || prev.st_uid != w->attr.st_uid |
2757 | || w->prev.st_gid != w->attr.st_gid |
3765 | || prev.st_gid != w->attr.st_gid |
2758 | || w->prev.st_rdev != w->attr.st_rdev |
3766 | || prev.st_rdev != w->attr.st_rdev |
2759 | || w->prev.st_size != w->attr.st_size |
3767 | || prev.st_size != w->attr.st_size |
2760 | || w->prev.st_atime != w->attr.st_atime |
3768 | || prev.st_atime != w->attr.st_atime |
2761 | || w->prev.st_mtime != w->attr.st_mtime |
3769 | || prev.st_mtime != w->attr.st_mtime |
2762 | || w->prev.st_ctime != w->attr.st_ctime |
3770 | || prev.st_ctime != w->attr.st_ctime |
2763 | ) { |
3771 | ) { |
|
|
3772 | /* we only update w->prev on actual differences */ |
|
|
3773 | /* in case we test more often than invoke the callback, */ |
|
|
3774 | /* to ensure that prev is always different to attr */ |
|
|
3775 | w->prev = prev; |
|
|
3776 | |
2764 | #if EV_USE_INOTIFY |
3777 | #if EV_USE_INOTIFY |
2765 | if (fs_fd >= 0) |
3778 | if (fs_fd >= 0) |
2766 | { |
3779 | { |
2767 | infy_del (EV_A_ w); |
3780 | infy_del (EV_A_ w); |
2768 | infy_add (EV_A_ w); |
3781 | infy_add (EV_A_ w); |
… | |
… | |
2793 | |
3806 | |
2794 | if (fs_fd >= 0) |
3807 | if (fs_fd >= 0) |
2795 | infy_add (EV_A_ w); |
3808 | infy_add (EV_A_ w); |
2796 | else |
3809 | else |
2797 | #endif |
3810 | #endif |
|
|
3811 | { |
2798 | ev_timer_again (EV_A_ &w->timer); |
3812 | ev_timer_again (EV_A_ &w->timer); |
|
|
3813 | ev_unref (EV_A); |
|
|
3814 | } |
2799 | |
3815 | |
2800 | ev_start (EV_A_ (W)w, 1); |
3816 | ev_start (EV_A_ (W)w, 1); |
2801 | |
3817 | |
2802 | EV_FREQUENT_CHECK; |
3818 | EV_FREQUENT_CHECK; |
2803 | } |
3819 | } |
… | |
… | |
2812 | EV_FREQUENT_CHECK; |
3828 | EV_FREQUENT_CHECK; |
2813 | |
3829 | |
2814 | #if EV_USE_INOTIFY |
3830 | #if EV_USE_INOTIFY |
2815 | infy_del (EV_A_ w); |
3831 | infy_del (EV_A_ w); |
2816 | #endif |
3832 | #endif |
|
|
3833 | |
|
|
3834 | if (ev_is_active (&w->timer)) |
|
|
3835 | { |
|
|
3836 | ev_ref (EV_A); |
2817 | ev_timer_stop (EV_A_ &w->timer); |
3837 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3838 | } |
2818 | |
3839 | |
2819 | ev_stop (EV_A_ (W)w); |
3840 | ev_stop (EV_A_ (W)w); |
2820 | |
3841 | |
2821 | EV_FREQUENT_CHECK; |
3842 | EV_FREQUENT_CHECK; |
2822 | } |
3843 | } |
… | |
… | |
2867 | |
3888 | |
2868 | EV_FREQUENT_CHECK; |
3889 | EV_FREQUENT_CHECK; |
2869 | } |
3890 | } |
2870 | #endif |
3891 | #endif |
2871 | |
3892 | |
|
|
3893 | #if EV_PREPARE_ENABLE |
2872 | void |
3894 | void |
2873 | ev_prepare_start (EV_P_ ev_prepare *w) |
3895 | ev_prepare_start (EV_P_ ev_prepare *w) |
2874 | { |
3896 | { |
2875 | if (expect_false (ev_is_active (w))) |
3897 | if (expect_false (ev_is_active (w))) |
2876 | return; |
3898 | return; |
… | |
… | |
2902 | |
3924 | |
2903 | ev_stop (EV_A_ (W)w); |
3925 | ev_stop (EV_A_ (W)w); |
2904 | |
3926 | |
2905 | EV_FREQUENT_CHECK; |
3927 | EV_FREQUENT_CHECK; |
2906 | } |
3928 | } |
|
|
3929 | #endif |
2907 | |
3930 | |
|
|
3931 | #if EV_CHECK_ENABLE |
2908 | void |
3932 | void |
2909 | ev_check_start (EV_P_ ev_check *w) |
3933 | ev_check_start (EV_P_ ev_check *w) |
2910 | { |
3934 | { |
2911 | if (expect_false (ev_is_active (w))) |
3935 | if (expect_false (ev_is_active (w))) |
2912 | return; |
3936 | return; |
… | |
… | |
2938 | |
3962 | |
2939 | ev_stop (EV_A_ (W)w); |
3963 | ev_stop (EV_A_ (W)w); |
2940 | |
3964 | |
2941 | EV_FREQUENT_CHECK; |
3965 | EV_FREQUENT_CHECK; |
2942 | } |
3966 | } |
|
|
3967 | #endif |
2943 | |
3968 | |
2944 | #if EV_EMBED_ENABLE |
3969 | #if EV_EMBED_ENABLE |
2945 | void noinline |
3970 | void noinline |
2946 | ev_embed_sweep (EV_P_ ev_embed *w) |
3971 | ev_embed_sweep (EV_P_ ev_embed *w) |
2947 | { |
3972 | { |
2948 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3973 | ev_run (w->other, EVRUN_NOWAIT); |
2949 | } |
3974 | } |
2950 | |
3975 | |
2951 | static void |
3976 | static void |
2952 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3977 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2953 | { |
3978 | { |
2954 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3979 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2955 | |
3980 | |
2956 | if (ev_cb (w)) |
3981 | if (ev_cb (w)) |
2957 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3982 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2958 | else |
3983 | else |
2959 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3984 | ev_run (w->other, EVRUN_NOWAIT); |
2960 | } |
3985 | } |
2961 | |
3986 | |
2962 | static void |
3987 | static void |
2963 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3988 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2964 | { |
3989 | { |
2965 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3990 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2966 | |
3991 | |
2967 | { |
3992 | { |
2968 | struct ev_loop *loop = w->other; |
3993 | EV_P = w->other; |
2969 | |
3994 | |
2970 | while (fdchangecnt) |
3995 | while (fdchangecnt) |
2971 | { |
3996 | { |
2972 | fd_reify (EV_A); |
3997 | fd_reify (EV_A); |
2973 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3998 | ev_run (EV_A_ EVRUN_NOWAIT); |
2974 | } |
3999 | } |
2975 | } |
4000 | } |
2976 | } |
4001 | } |
2977 | |
4002 | |
2978 | static void |
4003 | static void |
… | |
… | |
2981 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4006 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2982 | |
4007 | |
2983 | ev_embed_stop (EV_A_ w); |
4008 | ev_embed_stop (EV_A_ w); |
2984 | |
4009 | |
2985 | { |
4010 | { |
2986 | struct ev_loop *loop = w->other; |
4011 | EV_P = w->other; |
2987 | |
4012 | |
2988 | ev_loop_fork (EV_A); |
4013 | ev_loop_fork (EV_A); |
2989 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4014 | ev_run (EV_A_ EVRUN_NOWAIT); |
2990 | } |
4015 | } |
2991 | |
4016 | |
2992 | ev_embed_start (EV_A_ w); |
4017 | ev_embed_start (EV_A_ w); |
2993 | } |
4018 | } |
2994 | |
4019 | |
… | |
… | |
3005 | { |
4030 | { |
3006 | if (expect_false (ev_is_active (w))) |
4031 | if (expect_false (ev_is_active (w))) |
3007 | return; |
4032 | return; |
3008 | |
4033 | |
3009 | { |
4034 | { |
3010 | struct ev_loop *loop = w->other; |
4035 | EV_P = w->other; |
3011 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4036 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3012 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4037 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3013 | } |
4038 | } |
3014 | |
4039 | |
3015 | EV_FREQUENT_CHECK; |
4040 | EV_FREQUENT_CHECK; |
… | |
… | |
3042 | |
4067 | |
3043 | ev_io_stop (EV_A_ &w->io); |
4068 | ev_io_stop (EV_A_ &w->io); |
3044 | ev_prepare_stop (EV_A_ &w->prepare); |
4069 | ev_prepare_stop (EV_A_ &w->prepare); |
3045 | ev_fork_stop (EV_A_ &w->fork); |
4070 | ev_fork_stop (EV_A_ &w->fork); |
3046 | |
4071 | |
|
|
4072 | ev_stop (EV_A_ (W)w); |
|
|
4073 | |
3047 | EV_FREQUENT_CHECK; |
4074 | EV_FREQUENT_CHECK; |
3048 | } |
4075 | } |
3049 | #endif |
4076 | #endif |
3050 | |
4077 | |
3051 | #if EV_FORK_ENABLE |
4078 | #if EV_FORK_ENABLE |
… | |
… | |
3084 | |
4111 | |
3085 | EV_FREQUENT_CHECK; |
4112 | EV_FREQUENT_CHECK; |
3086 | } |
4113 | } |
3087 | #endif |
4114 | #endif |
3088 | |
4115 | |
|
|
4116 | #if EV_CLEANUP_ENABLE |
|
|
4117 | void |
|
|
4118 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
4119 | { |
|
|
4120 | if (expect_false (ev_is_active (w))) |
|
|
4121 | return; |
|
|
4122 | |
|
|
4123 | EV_FREQUENT_CHECK; |
|
|
4124 | |
|
|
4125 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4126 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4127 | cleanups [cleanupcnt - 1] = w; |
|
|
4128 | |
|
|
4129 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4130 | ev_unref (EV_A); |
|
|
4131 | EV_FREQUENT_CHECK; |
|
|
4132 | } |
|
|
4133 | |
|
|
4134 | void |
|
|
4135 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
4136 | { |
|
|
4137 | clear_pending (EV_A_ (W)w); |
|
|
4138 | if (expect_false (!ev_is_active (w))) |
|
|
4139 | return; |
|
|
4140 | |
|
|
4141 | EV_FREQUENT_CHECK; |
|
|
4142 | ev_ref (EV_A); |
|
|
4143 | |
|
|
4144 | { |
|
|
4145 | int active = ev_active (w); |
|
|
4146 | |
|
|
4147 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4148 | ev_active (cleanups [active - 1]) = active; |
|
|
4149 | } |
|
|
4150 | |
|
|
4151 | ev_stop (EV_A_ (W)w); |
|
|
4152 | |
|
|
4153 | EV_FREQUENT_CHECK; |
|
|
4154 | } |
|
|
4155 | #endif |
|
|
4156 | |
3089 | #if EV_ASYNC_ENABLE |
4157 | #if EV_ASYNC_ENABLE |
3090 | void |
4158 | void |
3091 | ev_async_start (EV_P_ ev_async *w) |
4159 | ev_async_start (EV_P_ ev_async *w) |
3092 | { |
4160 | { |
3093 | if (expect_false (ev_is_active (w))) |
4161 | if (expect_false (ev_is_active (w))) |
3094 | return; |
4162 | return; |
3095 | |
4163 | |
|
|
4164 | w->sent = 0; |
|
|
4165 | |
3096 | evpipe_init (EV_A); |
4166 | evpipe_init (EV_A); |
3097 | |
4167 | |
3098 | EV_FREQUENT_CHECK; |
4168 | EV_FREQUENT_CHECK; |
3099 | |
4169 | |
3100 | ev_start (EV_A_ (W)w, ++asynccnt); |
4170 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
3127 | |
4197 | |
3128 | void |
4198 | void |
3129 | ev_async_send (EV_P_ ev_async *w) |
4199 | ev_async_send (EV_P_ ev_async *w) |
3130 | { |
4200 | { |
3131 | w->sent = 1; |
4201 | w->sent = 1; |
3132 | evpipe_write (EV_A_ &gotasync); |
4202 | evpipe_write (EV_A_ &async_pending); |
3133 | } |
4203 | } |
3134 | #endif |
4204 | #endif |
3135 | |
4205 | |
3136 | /*****************************************************************************/ |
4206 | /*****************************************************************************/ |
3137 | |
4207 | |
… | |
… | |
3177 | { |
4247 | { |
3178 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4248 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3179 | |
4249 | |
3180 | if (expect_false (!once)) |
4250 | if (expect_false (!once)) |
3181 | { |
4251 | { |
3182 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4252 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3183 | return; |
4253 | return; |
3184 | } |
4254 | } |
3185 | |
4255 | |
3186 | once->cb = cb; |
4256 | once->cb = cb; |
3187 | once->arg = arg; |
4257 | once->arg = arg; |
… | |
… | |
3201 | } |
4271 | } |
3202 | } |
4272 | } |
3203 | |
4273 | |
3204 | /*****************************************************************************/ |
4274 | /*****************************************************************************/ |
3205 | |
4275 | |
3206 | #if 0 |
4276 | #if EV_WALK_ENABLE |
3207 | void |
4277 | void ecb_cold |
3208 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4278 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3209 | { |
4279 | { |
3210 | int i, j; |
4280 | int i, j; |
3211 | ev_watcher_list *wl, *wn; |
4281 | ev_watcher_list *wl, *wn; |
3212 | |
4282 | |
… | |
… | |
3227 | #if EV_USE_INOTIFY |
4297 | #if EV_USE_INOTIFY |
3228 | if (ev_cb ((ev_io *)wl) == infy_cb) |
4298 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3229 | ; |
4299 | ; |
3230 | else |
4300 | else |
3231 | #endif |
4301 | #endif |
3232 | if ((ev_io *)wl != &pipeev) |
4302 | if ((ev_io *)wl != &pipe_w) |
3233 | if (types & EV_IO) |
4303 | if (types & EV_IO) |
3234 | cb (EV_A_ EV_IO, wl); |
4304 | cb (EV_A_ EV_IO, wl); |
3235 | |
4305 | |
3236 | wl = wn; |
4306 | wl = wn; |
3237 | } |
4307 | } |
… | |
… | |
3256 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4326 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3257 | #endif |
4327 | #endif |
3258 | |
4328 | |
3259 | #if EV_IDLE_ENABLE |
4329 | #if EV_IDLE_ENABLE |
3260 | if (types & EV_IDLE) |
4330 | if (types & EV_IDLE) |
3261 | for (j = NUMPRI; i--; ) |
4331 | for (j = NUMPRI; j--; ) |
3262 | for (i = idlecnt [j]; i--; ) |
4332 | for (i = idlecnt [j]; i--; ) |
3263 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4333 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3264 | #endif |
4334 | #endif |
3265 | |
4335 | |
3266 | #if EV_FORK_ENABLE |
4336 | #if EV_FORK_ENABLE |
… | |
… | |
3274 | if (types & EV_ASYNC) |
4344 | if (types & EV_ASYNC) |
3275 | for (i = asynccnt; i--; ) |
4345 | for (i = asynccnt; i--; ) |
3276 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
4346 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3277 | #endif |
4347 | #endif |
3278 | |
4348 | |
|
|
4349 | #if EV_PREPARE_ENABLE |
3279 | if (types & EV_PREPARE) |
4350 | if (types & EV_PREPARE) |
3280 | for (i = preparecnt; i--; ) |
4351 | for (i = preparecnt; i--; ) |
3281 | #if EV_EMBED_ENABLE |
4352 | # if EV_EMBED_ENABLE |
3282 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
4353 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3283 | #endif |
4354 | # endif |
3284 | cb (EV_A_ EV_PREPARE, prepares [i]); |
4355 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4356 | #endif |
3285 | |
4357 | |
|
|
4358 | #if EV_CHECK_ENABLE |
3286 | if (types & EV_CHECK) |
4359 | if (types & EV_CHECK) |
3287 | for (i = checkcnt; i--; ) |
4360 | for (i = checkcnt; i--; ) |
3288 | cb (EV_A_ EV_CHECK, checks [i]); |
4361 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4362 | #endif |
3289 | |
4363 | |
|
|
4364 | #if EV_SIGNAL_ENABLE |
3290 | if (types & EV_SIGNAL) |
4365 | if (types & EV_SIGNAL) |
3291 | for (i = 0; i < signalmax; ++i) |
4366 | for (i = 0; i < EV_NSIG - 1; ++i) |
3292 | for (wl = signals [i].head; wl; ) |
4367 | for (wl = signals [i].head; wl; ) |
3293 | { |
4368 | { |
3294 | wn = wl->next; |
4369 | wn = wl->next; |
3295 | cb (EV_A_ EV_SIGNAL, wl); |
4370 | cb (EV_A_ EV_SIGNAL, wl); |
3296 | wl = wn; |
4371 | wl = wn; |
3297 | } |
4372 | } |
|
|
4373 | #endif |
3298 | |
4374 | |
|
|
4375 | #if EV_CHILD_ENABLE |
3299 | if (types & EV_CHILD) |
4376 | if (types & EV_CHILD) |
3300 | for (i = EV_PID_HASHSIZE; i--; ) |
4377 | for (i = (EV_PID_HASHSIZE); i--; ) |
3301 | for (wl = childs [i]; wl; ) |
4378 | for (wl = childs [i]; wl; ) |
3302 | { |
4379 | { |
3303 | wn = wl->next; |
4380 | wn = wl->next; |
3304 | cb (EV_A_ EV_CHILD, wl); |
4381 | cb (EV_A_ EV_CHILD, wl); |
3305 | wl = wn; |
4382 | wl = wn; |
3306 | } |
4383 | } |
|
|
4384 | #endif |
3307 | /* EV_STAT 0x00001000 /* stat data changed */ |
4385 | /* EV_STAT 0x00001000 /* stat data changed */ |
3308 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
4386 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3309 | } |
4387 | } |
3310 | #endif |
4388 | #endif |
3311 | |
4389 | |
3312 | #if EV_MULTIPLICITY |
4390 | #if EV_MULTIPLICITY |
3313 | #include "ev_wrap.h" |
4391 | #include "ev_wrap.h" |
3314 | #endif |
4392 | #endif |
3315 | |
4393 | |
3316 | #ifdef __cplusplus |
4394 | EV_CPP(}) |
3317 | } |
|
|
3318 | #endif |
|
|
3319 | |
4395 | |