1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 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 | * |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
51 | |
47 | |
|
|
48 | # if HAVE_CLOCK_SYSCALL |
|
|
49 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
50 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
51 | # ifndef EV_USE_REALTIME |
|
|
52 | # define EV_USE_REALTIME 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_MONOTONIC |
|
|
55 | # define EV_USE_MONOTONIC 1 |
|
|
56 | # endif |
|
|
57 | # endif |
|
|
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
59 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
60 | # endif |
|
|
61 | |
52 | # if HAVE_CLOCK_GETTIME |
62 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
63 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
64 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
65 | # endif |
56 | # ifndef EV_USE_REALTIME |
66 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
67 | # define EV_USE_REALTIME 0 |
58 | # endif |
68 | # endif |
59 | # else |
69 | # else |
60 | # ifndef EV_USE_MONOTONIC |
70 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
71 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
72 | # endif |
63 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
65 | # endif |
75 | # endif |
66 | # endif |
76 | # endif |
67 | |
77 | |
|
|
78 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
81 | # endif |
71 | # else |
82 | # else |
|
|
83 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
84 | # define EV_USE_NANOSLEEP 0 |
|
|
85 | # endif |
|
|
86 | |
|
|
87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
88 | # ifndef EV_USE_SELECT |
|
|
89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
90 | # endif |
|
|
91 | # else |
|
|
92 | # undef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT 0 |
74 | # endif |
94 | # endif |
75 | |
95 | |
|
|
96 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
99 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
100 | # else |
|
|
101 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
103 | # endif |
91 | |
104 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
95 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
108 | # endif |
|
|
109 | # else |
|
|
110 | # undef EV_USE_EPOLL |
|
|
111 | # define EV_USE_EPOLL 0 |
98 | # endif |
112 | # endif |
99 | |
113 | |
|
|
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
100 | # ifndef EV_USE_KQUEUE |
115 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
102 | # define EV_USE_KQUEUE 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
117 | # endif |
|
|
118 | # else |
|
|
119 | # undef EV_USE_KQUEUE |
|
|
120 | # define EV_USE_KQUEUE 0 |
106 | # endif |
121 | # endif |
107 | |
122 | |
108 | # ifndef EV_USE_PORT |
|
|
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
110 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
111 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
126 | # endif |
|
|
127 | # else |
|
|
128 | # undef EV_USE_PORT |
|
|
129 | # define EV_USE_PORT 0 |
114 | # endif |
130 | # endif |
115 | |
131 | |
116 | # ifndef EV_USE_INOTIFY |
|
|
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
118 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
121 | # endif |
135 | # endif |
|
|
136 | # else |
|
|
137 | # undef EV_USE_INOTIFY |
|
|
138 | # define EV_USE_INOTIFY 0 |
122 | # endif |
139 | # endif |
123 | |
140 | |
|
|
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
124 | # ifndef EV_USE_EVENTFD |
142 | # ifndef EV_USE_SIGNALFD |
125 | # if HAVE_EVENTFD |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
|
|
128 | # define EV_USE_EVENTFD 0 |
|
|
129 | # endif |
144 | # endif |
|
|
145 | # else |
|
|
146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
|
|
148 | # endif |
|
|
149 | |
|
|
150 | # if HAVE_EVENTFD |
|
|
151 | # ifndef EV_USE_EVENTFD |
|
|
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
153 | # endif |
|
|
154 | # else |
|
|
155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
130 | # endif |
157 | # endif |
131 | |
158 | |
132 | #endif |
159 | #endif |
133 | |
160 | |
134 | #include <math.h> |
161 | #include <math.h> |
135 | #include <stdlib.h> |
162 | #include <stdlib.h> |
|
|
163 | #include <string.h> |
136 | #include <fcntl.h> |
164 | #include <fcntl.h> |
137 | #include <stddef.h> |
165 | #include <stddef.h> |
138 | |
166 | |
139 | #include <stdio.h> |
167 | #include <stdio.h> |
140 | |
168 | |
141 | #include <assert.h> |
169 | #include <assert.h> |
142 | #include <errno.h> |
170 | #include <errno.h> |
143 | #include <sys/types.h> |
171 | #include <sys/types.h> |
144 | #include <time.h> |
172 | #include <time.h> |
|
|
173 | #include <limits.h> |
145 | |
174 | |
146 | #include <signal.h> |
175 | #include <signal.h> |
147 | |
176 | |
148 | #ifdef EV_H |
177 | #ifdef EV_H |
149 | # include EV_H |
178 | # include EV_H |
150 | #else |
179 | #else |
151 | # include "ev.h" |
180 | # include "ev.h" |
152 | #endif |
181 | #endif |
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|
182 | |
|
|
183 | EV_CPP(extern "C" {) |
153 | |
184 | |
154 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
186 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
157 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
160 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
161 | # include <windows.h> |
192 | # include <windows.h> |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
164 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
165 | #endif |
197 | #endif |
|
|
198 | |
|
|
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
200 | * a limit of 1024 into their select. Where people have brains, |
|
|
201 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
202 | * ordered to have a vacuum, or they do anything for money. |
|
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203 | * This might help. Or not. |
|
|
204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
166 | |
206 | |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
208 | |
|
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209 | /* try to deduce the maximum number of signals on this platform */ |
|
|
210 | #if defined (EV_NSIG) |
|
|
211 | /* use what's provided */ |
|
|
212 | #elif defined (NSIG) |
|
|
213 | # define EV_NSIG (NSIG) |
|
|
214 | #elif defined(_NSIG) |
|
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215 | # define EV_NSIG (_NSIG) |
|
|
216 | #elif defined (SIGMAX) |
|
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217 | # define EV_NSIG (SIGMAX+1) |
|
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218 | #elif defined (SIG_MAX) |
|
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219 | # define EV_NSIG (SIG_MAX+1) |
|
|
220 | #elif defined (_SIG_MAX) |
|
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221 | # define EV_NSIG (_SIG_MAX+1) |
|
|
222 | #elif defined (MAXSIG) |
|
|
223 | # define EV_NSIG (MAXSIG+1) |
|
|
224 | #elif defined (MAX_SIG) |
|
|
225 | # define EV_NSIG (MAX_SIG+1) |
|
|
226 | #elif defined (SIGARRAYSIZE) |
|
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227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
228 | #elif defined (_sys_nsig) |
|
|
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
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230 | #else |
|
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231 | # error "unable to find value for NSIG, please report" |
|
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232 | /* to make it compile regardless, just remove the above line, */ |
|
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233 | /* but consider reporting it, too! :) */ |
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234 | # define EV_NSIG 65 |
|
|
235 | #endif |
|
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236 | |
|
|
237 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
238 | # if __linux && __GLIBC__ >= 2 |
|
|
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
240 | # else |
|
|
241 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
242 | # endif |
|
|
243 | #endif |
168 | |
244 | |
169 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
172 | # else |
248 | # else |
173 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
250 | # endif |
175 | #endif |
251 | #endif |
176 | |
252 | |
177 | #ifndef EV_USE_REALTIME |
253 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
255 | #endif |
180 | |
256 | |
181 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
258 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
184 | # else |
260 | # else |
185 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
186 | # endif |
262 | # endif |
187 | #endif |
263 | #endif |
188 | |
264 | |
189 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
190 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
191 | #endif |
267 | #endif |
192 | |
268 | |
193 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
194 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
195 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
196 | # else |
272 | # else |
197 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
198 | # endif |
274 | # endif |
199 | #endif |
275 | #endif |
200 | |
276 | |
201 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
203 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
204 | # else |
280 | # else |
205 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
206 | # endif |
282 | # endif |
207 | #endif |
283 | #endif |
208 | |
284 | |
… | |
… | |
214 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
215 | #endif |
291 | #endif |
216 | |
292 | |
217 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
219 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
220 | # else |
296 | # else |
221 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
222 | # endif |
298 | # endif |
223 | #endif |
299 | #endif |
224 | |
300 | |
225 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
226 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
227 | # define EV_PID_HASHSIZE 1 |
|
|
228 | # else |
|
|
229 | # define EV_PID_HASHSIZE 16 |
|
|
230 | # endif |
|
|
231 | #endif |
303 | #endif |
232 | |
304 | |
233 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
234 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
235 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
236 | # else |
|
|
237 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
238 | # endif |
|
|
239 | #endif |
307 | #endif |
240 | |
308 | |
241 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
243 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
244 | # else |
312 | # else |
245 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
|
|
314 | # endif |
|
|
315 | #endif |
|
|
316 | |
|
|
317 | #ifndef EV_USE_SIGNALFD |
|
|
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
320 | # else |
|
|
321 | # define EV_USE_SIGNALFD 0 |
246 | # endif |
322 | # endif |
247 | #endif |
323 | #endif |
248 | |
324 | |
249 | #if 0 /* debugging */ |
325 | #if 0 /* debugging */ |
250 | # define EV_VERIFY 3 |
326 | # define EV_VERIFY 3 |
251 | # define EV_USE_4HEAP 1 |
327 | # define EV_USE_4HEAP 1 |
252 | # define EV_HEAP_CACHE_AT 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
253 | #endif |
329 | #endif |
254 | |
330 | |
255 | #ifndef EV_VERIFY |
331 | #ifndef EV_VERIFY |
256 | # define EV_VERIFY !EV_MINIMAL |
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
257 | #endif |
333 | #endif |
258 | |
334 | |
259 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
260 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
261 | #endif |
337 | #endif |
262 | |
338 | |
263 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
341 | #endif |
|
|
342 | |
|
|
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
344 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
345 | #if EV_USE_CLOCK_SYSCALL |
|
|
346 | # include <syscall.h> |
|
|
347 | # ifdef SYS_clock_gettime |
|
|
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
349 | # undef EV_USE_MONOTONIC |
|
|
350 | # define EV_USE_MONOTONIC 1 |
|
|
351 | # else |
|
|
352 | # undef EV_USE_CLOCK_SYSCALL |
|
|
353 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
354 | # endif |
265 | #endif |
355 | #endif |
266 | |
356 | |
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
358 | |
|
|
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
268 | |
364 | |
269 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
271 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
272 | #endif |
368 | #endif |
… | |
… | |
287 | # endif |
383 | # endif |
288 | #endif |
384 | #endif |
289 | |
385 | |
290 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
291 | # include <sys/utsname.h> |
387 | # include <sys/utsname.h> |
|
|
388 | # include <sys/statfs.h> |
292 | # include <sys/inotify.h> |
389 | # include <sys/inotify.h> |
293 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
294 | # ifndef IN_DONT_FOLLOW |
391 | # ifndef IN_DONT_FOLLOW |
295 | # undef EV_USE_INOTIFY |
392 | # undef EV_USE_INOTIFY |
296 | # define EV_USE_INOTIFY 0 |
393 | # define EV_USE_INOTIFY 0 |
… | |
… | |
302 | #endif |
399 | #endif |
303 | |
400 | |
304 | #if EV_USE_EVENTFD |
401 | #if EV_USE_EVENTFD |
305 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
402 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
306 | # include <stdint.h> |
403 | # include <stdint.h> |
307 | # ifdef __cplusplus |
404 | # ifndef EFD_NONBLOCK |
308 | extern "C" { |
405 | # define EFD_NONBLOCK O_NONBLOCK |
309 | # endif |
406 | # endif |
310 | int eventfd (unsigned int initval, int flags); |
407 | # ifndef EFD_CLOEXEC |
311 | # ifdef __cplusplus |
408 | # ifdef O_CLOEXEC |
312 | } |
409 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
410 | # else |
|
|
411 | # define EFD_CLOEXEC 02000000 |
|
|
412 | # endif |
313 | # endif |
413 | # endif |
|
|
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
415 | #endif |
|
|
416 | |
|
|
417 | #if EV_USE_SIGNALFD |
|
|
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
419 | # include <stdint.h> |
|
|
420 | # ifndef SFD_NONBLOCK |
|
|
421 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
422 | # endif |
|
|
423 | # ifndef SFD_CLOEXEC |
|
|
424 | # ifdef O_CLOEXEC |
|
|
425 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
426 | # else |
|
|
427 | # define SFD_CLOEXEC 02000000 |
|
|
428 | # endif |
|
|
429 | # endif |
|
|
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
431 | |
|
|
432 | struct signalfd_siginfo |
|
|
433 | { |
|
|
434 | uint32_t ssi_signo; |
|
|
435 | char pad[128 - sizeof (uint32_t)]; |
|
|
436 | }; |
314 | #endif |
437 | #endif |
315 | |
438 | |
316 | /**/ |
439 | /**/ |
317 | |
440 | |
318 | #if EV_VERIFY >= 3 |
441 | #if EV_VERIFY >= 3 |
319 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
320 | #else |
443 | #else |
321 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
322 | #endif |
445 | #endif |
323 | |
446 | |
324 | /* |
447 | /* |
… | |
… | |
331 | */ |
454 | */ |
332 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
333 | |
456 | |
334 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
335 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
336 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
459 | |
|
|
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
337 | |
462 | |
338 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
339 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
340 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
341 | #else |
466 | #else |
… | |
… | |
348 | |
473 | |
349 | #define expect_false(expr) expect ((expr) != 0, 0) |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
350 | #define expect_true(expr) expect ((expr) != 0, 1) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
351 | #define inline_size static inline |
476 | #define inline_size static inline |
352 | |
477 | |
353 | #if EV_MINIMAL |
478 | #if EV_FEATURE_CODE |
|
|
479 | # define inline_speed static inline |
|
|
480 | #else |
354 | # define inline_speed static noinline |
481 | # define inline_speed static noinline |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
485 | |
|
|
486 | #if EV_MINPRI == EV_MAXPRI |
|
|
487 | # define ABSPRI(w) (((W)w), 0) |
355 | #else |
488 | #else |
356 | # define inline_speed static inline |
|
|
357 | #endif |
|
|
358 | |
|
|
359 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
360 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
490 | #endif |
361 | |
491 | |
362 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
363 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
364 | |
494 | |
365 | typedef ev_watcher *W; |
495 | typedef ev_watcher *W; |
… | |
… | |
367 | typedef ev_watcher_time *WT; |
497 | typedef ev_watcher_time *WT; |
368 | |
498 | |
369 | #define ev_active(w) ((W)(w))->active |
499 | #define ev_active(w) ((W)(w))->active |
370 | #define ev_at(w) ((WT)(w))->at |
500 | #define ev_at(w) ((WT)(w))->at |
371 | |
501 | |
|
|
502 | #if EV_USE_REALTIME |
|
|
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
504 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
506 | #endif |
|
|
507 | |
372 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
373 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
374 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
375 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
510 | #endif |
|
|
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
376 | #endif |
520 | #endif |
377 | |
521 | |
378 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
379 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
380 | #endif |
524 | #endif |
381 | |
525 | |
382 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
383 | |
527 | |
|
|
528 | static unsigned int noinline |
|
|
529 | ev_linux_version (void) |
|
|
530 | { |
|
|
531 | #ifdef __linux |
|
|
532 | struct utsname buf; |
|
|
533 | unsigned int v; |
|
|
534 | int i; |
|
|
535 | char *p = buf.release; |
|
|
536 | |
|
|
537 | if (uname (&buf)) |
|
|
538 | return 0; |
|
|
539 | |
|
|
540 | for (i = 3+1; --i; ) |
|
|
541 | { |
|
|
542 | unsigned int c = 0; |
|
|
543 | |
|
|
544 | for (;;) |
|
|
545 | { |
|
|
546 | if (*p >= '0' && *p <= '9') |
|
|
547 | c = c * 10 + *p++ - '0'; |
|
|
548 | else |
|
|
549 | { |
|
|
550 | p += *p == '.'; |
|
|
551 | break; |
|
|
552 | } |
|
|
553 | } |
|
|
554 | |
|
|
555 | v = (v << 8) | c; |
|
|
556 | } |
|
|
557 | |
|
|
558 | return v; |
|
|
559 | #else |
|
|
560 | return 0; |
|
|
561 | #endif |
|
|
562 | } |
|
|
563 | |
|
|
564 | /*****************************************************************************/ |
|
|
565 | |
|
|
566 | #if EV_AVOID_STDIO |
|
|
567 | static void noinline |
|
|
568 | ev_printerr (const char *msg) |
|
|
569 | { |
|
|
570 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
571 | } |
|
|
572 | #endif |
|
|
573 | |
384 | static void (*syserr_cb)(const char *msg); |
574 | static void (*syserr_cb)(const char *msg); |
385 | |
575 | |
386 | void |
576 | void |
387 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
577 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
388 | { |
578 | { |
389 | syserr_cb = cb; |
579 | syserr_cb = cb; |
390 | } |
580 | } |
391 | |
581 | |
392 | static void noinline |
582 | static void noinline |
393 | syserr (const char *msg) |
583 | ev_syserr (const char *msg) |
394 | { |
584 | { |
395 | if (!msg) |
585 | if (!msg) |
396 | msg = "(libev) system error"; |
586 | msg = "(libev) system error"; |
397 | |
587 | |
398 | if (syserr_cb) |
588 | if (syserr_cb) |
399 | syserr_cb (msg); |
589 | syserr_cb (msg); |
400 | else |
590 | else |
401 | { |
591 | { |
|
|
592 | #if EV_AVOID_STDIO |
|
|
593 | const char *err = strerror (errno); |
|
|
594 | |
|
|
595 | ev_printerr (msg); |
|
|
596 | ev_printerr (": "); |
|
|
597 | ev_printerr (err); |
|
|
598 | ev_printerr ("\n"); |
|
|
599 | #else |
402 | perror (msg); |
600 | perror (msg); |
|
|
601 | #endif |
403 | abort (); |
602 | abort (); |
404 | } |
603 | } |
405 | } |
604 | } |
406 | |
605 | |
407 | static void * |
606 | static void * |
408 | ev_realloc_emul (void *ptr, long size) |
607 | ev_realloc_emul (void *ptr, long size) |
409 | { |
608 | { |
|
|
609 | #if __GLIBC__ |
|
|
610 | return realloc (ptr, size); |
|
|
611 | #else |
410 | /* some systems, notably openbsd and darwin, fail to properly |
612 | /* some systems, notably openbsd and darwin, fail to properly |
411 | * implement realloc (x, 0) (as required by both ansi c-98 and |
613 | * implement realloc (x, 0) (as required by both ansi c-89 and |
412 | * the single unix specification, so work around them here. |
614 | * the single unix specification, so work around them here. |
413 | */ |
615 | */ |
414 | |
616 | |
415 | if (size) |
617 | if (size) |
416 | return realloc (ptr, size); |
618 | return realloc (ptr, size); |
417 | |
619 | |
418 | free (ptr); |
620 | free (ptr); |
419 | return 0; |
621 | return 0; |
|
|
622 | #endif |
420 | } |
623 | } |
421 | |
624 | |
422 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
625 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
423 | |
626 | |
424 | void |
627 | void |
… | |
… | |
432 | { |
635 | { |
433 | ptr = alloc (ptr, size); |
636 | ptr = alloc (ptr, size); |
434 | |
637 | |
435 | if (!ptr && size) |
638 | if (!ptr && size) |
436 | { |
639 | { |
|
|
640 | #if EV_AVOID_STDIO |
|
|
641 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
642 | #else |
437 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
643 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
644 | #endif |
438 | abort (); |
645 | abort (); |
439 | } |
646 | } |
440 | |
647 | |
441 | return ptr; |
648 | return ptr; |
442 | } |
649 | } |
… | |
… | |
444 | #define ev_malloc(size) ev_realloc (0, (size)) |
651 | #define ev_malloc(size) ev_realloc (0, (size)) |
445 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
652 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
446 | |
653 | |
447 | /*****************************************************************************/ |
654 | /*****************************************************************************/ |
448 | |
655 | |
|
|
656 | /* set in reify when reification needed */ |
|
|
657 | #define EV_ANFD_REIFY 1 |
|
|
658 | |
|
|
659 | /* file descriptor info structure */ |
449 | typedef struct |
660 | typedef struct |
450 | { |
661 | { |
451 | WL head; |
662 | WL head; |
452 | unsigned char events; |
663 | unsigned char events; /* the events watched for */ |
453 | unsigned char reify; |
664 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
454 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
665 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
455 | unsigned char unused; /* currently unused padding */ |
666 | unsigned char unused; |
|
|
667 | #if EV_USE_EPOLL |
|
|
668 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
669 | #endif |
456 | #if EV_SELECT_IS_WINSOCKET |
670 | #if EV_SELECT_IS_WINSOCKET |
457 | SOCKET handle; |
671 | SOCKET handle; |
458 | #endif |
672 | #endif |
459 | } ANFD; |
673 | } ANFD; |
460 | |
674 | |
|
|
675 | /* stores the pending event set for a given watcher */ |
461 | typedef struct |
676 | typedef struct |
462 | { |
677 | { |
463 | W w; |
678 | W w; |
464 | int events; |
679 | int events; /* the pending event set for the given watcher */ |
465 | } ANPENDING; |
680 | } ANPENDING; |
466 | |
681 | |
467 | #if EV_USE_INOTIFY |
682 | #if EV_USE_INOTIFY |
468 | /* hash table entry per inotify-id */ |
683 | /* hash table entry per inotify-id */ |
469 | typedef struct |
684 | typedef struct |
… | |
… | |
472 | } ANFS; |
687 | } ANFS; |
473 | #endif |
688 | #endif |
474 | |
689 | |
475 | /* Heap Entry */ |
690 | /* Heap Entry */ |
476 | #if EV_HEAP_CACHE_AT |
691 | #if EV_HEAP_CACHE_AT |
|
|
692 | /* a heap element */ |
477 | typedef struct { |
693 | typedef struct { |
478 | ev_tstamp at; |
694 | ev_tstamp at; |
479 | WT w; |
695 | WT w; |
480 | } ANHE; |
696 | } ANHE; |
481 | |
697 | |
482 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
698 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
483 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
699 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
484 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
700 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
485 | #else |
701 | #else |
|
|
702 | /* a heap element */ |
486 | typedef WT ANHE; |
703 | typedef WT ANHE; |
487 | |
704 | |
488 | #define ANHE_w(he) (he) |
705 | #define ANHE_w(he) (he) |
489 | #define ANHE_at(he) (he)->at |
706 | #define ANHE_at(he) (he)->at |
490 | #define ANHE_at_cache(he) |
707 | #define ANHE_at_cache(he) |
… | |
… | |
514 | |
731 | |
515 | static int ev_default_loop_ptr; |
732 | static int ev_default_loop_ptr; |
516 | |
733 | |
517 | #endif |
734 | #endif |
518 | |
735 | |
|
|
736 | #if EV_FEATURE_API |
|
|
737 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
738 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
739 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
740 | #else |
|
|
741 | # define EV_RELEASE_CB (void)0 |
|
|
742 | # define EV_ACQUIRE_CB (void)0 |
|
|
743 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
744 | #endif |
|
|
745 | |
|
|
746 | #define EVBREAK_RECURSE 0x80 |
|
|
747 | |
519 | /*****************************************************************************/ |
748 | /*****************************************************************************/ |
520 | |
749 | |
|
|
750 | #ifndef EV_HAVE_EV_TIME |
521 | ev_tstamp |
751 | ev_tstamp |
522 | ev_time (void) |
752 | ev_time (void) |
523 | { |
753 | { |
524 | #if EV_USE_REALTIME |
754 | #if EV_USE_REALTIME |
|
|
755 | if (expect_true (have_realtime)) |
|
|
756 | { |
525 | struct timespec ts; |
757 | struct timespec ts; |
526 | clock_gettime (CLOCK_REALTIME, &ts); |
758 | clock_gettime (CLOCK_REALTIME, &ts); |
527 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
759 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
528 | #else |
760 | } |
|
|
761 | #endif |
|
|
762 | |
529 | struct timeval tv; |
763 | struct timeval tv; |
530 | gettimeofday (&tv, 0); |
764 | gettimeofday (&tv, 0); |
531 | return tv.tv_sec + tv.tv_usec * 1e-6; |
765 | return tv.tv_sec + tv.tv_usec * 1e-6; |
532 | #endif |
|
|
533 | } |
766 | } |
|
|
767 | #endif |
534 | |
768 | |
535 | ev_tstamp inline_size |
769 | inline_size ev_tstamp |
536 | get_clock (void) |
770 | get_clock (void) |
537 | { |
771 | { |
538 | #if EV_USE_MONOTONIC |
772 | #if EV_USE_MONOTONIC |
539 | if (expect_true (have_monotonic)) |
773 | if (expect_true (have_monotonic)) |
540 | { |
774 | { |
… | |
… | |
561 | if (delay > 0.) |
795 | if (delay > 0.) |
562 | { |
796 | { |
563 | #if EV_USE_NANOSLEEP |
797 | #if EV_USE_NANOSLEEP |
564 | struct timespec ts; |
798 | struct timespec ts; |
565 | |
799 | |
566 | ts.tv_sec = (time_t)delay; |
800 | EV_TS_SET (ts, delay); |
567 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
568 | |
|
|
569 | nanosleep (&ts, 0); |
801 | nanosleep (&ts, 0); |
570 | #elif defined(_WIN32) |
802 | #elif defined(_WIN32) |
571 | Sleep ((unsigned long)(delay * 1e3)); |
803 | Sleep ((unsigned long)(delay * 1e3)); |
572 | #else |
804 | #else |
573 | struct timeval tv; |
805 | struct timeval tv; |
574 | |
806 | |
575 | tv.tv_sec = (time_t)delay; |
|
|
576 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
577 | |
|
|
578 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
807 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
579 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
808 | /* something not guaranteed by newer posix versions, but guaranteed */ |
580 | /* by older ones */ |
809 | /* by older ones */ |
|
|
810 | EV_TV_SET (tv, delay); |
581 | select (0, 0, 0, 0, &tv); |
811 | select (0, 0, 0, 0, &tv); |
582 | #endif |
812 | #endif |
583 | } |
813 | } |
584 | } |
814 | } |
585 | |
815 | |
586 | /*****************************************************************************/ |
816 | /*****************************************************************************/ |
587 | |
817 | |
588 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
818 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
589 | |
819 | |
590 | int inline_size |
820 | /* find a suitable new size for the given array, */ |
|
|
821 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
822 | inline_size int |
591 | array_nextsize (int elem, int cur, int cnt) |
823 | array_nextsize (int elem, int cur, int cnt) |
592 | { |
824 | { |
593 | int ncur = cur + 1; |
825 | int ncur = cur + 1; |
594 | |
826 | |
595 | do |
827 | do |
… | |
… | |
636 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
868 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
637 | } |
869 | } |
638 | #endif |
870 | #endif |
639 | |
871 | |
640 | #define array_free(stem, idx) \ |
872 | #define array_free(stem, idx) \ |
641 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
873 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
642 | |
874 | |
643 | /*****************************************************************************/ |
875 | /*****************************************************************************/ |
|
|
876 | |
|
|
877 | /* dummy callback for pending events */ |
|
|
878 | static void noinline |
|
|
879 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
880 | { |
|
|
881 | } |
644 | |
882 | |
645 | void noinline |
883 | void noinline |
646 | ev_feed_event (EV_P_ void *w, int revents) |
884 | ev_feed_event (EV_P_ void *w, int revents) |
647 | { |
885 | { |
648 | W w_ = (W)w; |
886 | W w_ = (W)w; |
… | |
… | |
657 | pendings [pri][w_->pending - 1].w = w_; |
895 | pendings [pri][w_->pending - 1].w = w_; |
658 | pendings [pri][w_->pending - 1].events = revents; |
896 | pendings [pri][w_->pending - 1].events = revents; |
659 | } |
897 | } |
660 | } |
898 | } |
661 | |
899 | |
662 | void inline_speed |
900 | inline_speed void |
|
|
901 | feed_reverse (EV_P_ W w) |
|
|
902 | { |
|
|
903 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
904 | rfeeds [rfeedcnt++] = w; |
|
|
905 | } |
|
|
906 | |
|
|
907 | inline_size void |
|
|
908 | feed_reverse_done (EV_P_ int revents) |
|
|
909 | { |
|
|
910 | do |
|
|
911 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
912 | while (rfeedcnt); |
|
|
913 | } |
|
|
914 | |
|
|
915 | inline_speed void |
663 | queue_events (EV_P_ W *events, int eventcnt, int type) |
916 | queue_events (EV_P_ W *events, int eventcnt, int type) |
664 | { |
917 | { |
665 | int i; |
918 | int i; |
666 | |
919 | |
667 | for (i = 0; i < eventcnt; ++i) |
920 | for (i = 0; i < eventcnt; ++i) |
668 | ev_feed_event (EV_A_ events [i], type); |
921 | ev_feed_event (EV_A_ events [i], type); |
669 | } |
922 | } |
670 | |
923 | |
671 | /*****************************************************************************/ |
924 | /*****************************************************************************/ |
672 | |
925 | |
673 | void inline_speed |
926 | inline_speed void |
674 | fd_event (EV_P_ int fd, int revents) |
927 | fd_event_nocheck (EV_P_ int fd, int revents) |
675 | { |
928 | { |
676 | ANFD *anfd = anfds + fd; |
929 | ANFD *anfd = anfds + fd; |
677 | ev_io *w; |
930 | ev_io *w; |
678 | |
931 | |
679 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
932 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
683 | if (ev) |
936 | if (ev) |
684 | ev_feed_event (EV_A_ (W)w, ev); |
937 | ev_feed_event (EV_A_ (W)w, ev); |
685 | } |
938 | } |
686 | } |
939 | } |
687 | |
940 | |
|
|
941 | /* do not submit kernel events for fds that have reify set */ |
|
|
942 | /* because that means they changed while we were polling for new events */ |
|
|
943 | inline_speed void |
|
|
944 | fd_event (EV_P_ int fd, int revents) |
|
|
945 | { |
|
|
946 | ANFD *anfd = anfds + fd; |
|
|
947 | |
|
|
948 | if (expect_true (!anfd->reify)) |
|
|
949 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
950 | } |
|
|
951 | |
688 | void |
952 | void |
689 | ev_feed_fd_event (EV_P_ int fd, int revents) |
953 | ev_feed_fd_event (EV_P_ int fd, int revents) |
690 | { |
954 | { |
691 | if (fd >= 0 && fd < anfdmax) |
955 | if (fd >= 0 && fd < anfdmax) |
692 | fd_event (EV_A_ fd, revents); |
956 | fd_event_nocheck (EV_A_ fd, revents); |
693 | } |
957 | } |
694 | |
958 | |
695 | void inline_size |
959 | /* make sure the external fd watch events are in-sync */ |
|
|
960 | /* with the kernel/libev internal state */ |
|
|
961 | inline_size void |
696 | fd_reify (EV_P) |
962 | fd_reify (EV_P) |
697 | { |
963 | { |
698 | int i; |
964 | int i; |
699 | |
965 | |
700 | for (i = 0; i < fdchangecnt; ++i) |
966 | for (i = 0; i < fdchangecnt; ++i) |
701 | { |
967 | { |
702 | int fd = fdchanges [i]; |
968 | int fd = fdchanges [i]; |
703 | ANFD *anfd = anfds + fd; |
969 | ANFD *anfd = anfds + fd; |
704 | ev_io *w; |
970 | ev_io *w; |
705 | |
971 | |
706 | unsigned char events = 0; |
972 | unsigned char o_events = anfd->events; |
|
|
973 | unsigned char o_reify = anfd->reify; |
707 | |
974 | |
708 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
975 | anfd->reify = 0; |
709 | events |= (unsigned char)w->events; |
|
|
710 | |
976 | |
711 | #if EV_SELECT_IS_WINSOCKET |
977 | #if EV_SELECT_IS_WINSOCKET |
712 | if (events) |
978 | if (o_reify & EV__IOFDSET) |
713 | { |
979 | { |
714 | unsigned long arg; |
980 | unsigned long arg; |
715 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
716 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
981 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
717 | #else |
|
|
718 | anfd->handle = _get_osfhandle (fd); |
|
|
719 | #endif |
|
|
720 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
982 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
721 | } |
983 | } |
722 | #endif |
984 | #endif |
723 | |
985 | |
|
|
986 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
724 | { |
987 | { |
725 | unsigned char o_events = anfd->events; |
|
|
726 | unsigned char o_reify = anfd->reify; |
|
|
727 | |
|
|
728 | anfd->reify = 0; |
|
|
729 | anfd->events = events; |
988 | anfd->events = 0; |
730 | |
989 | |
731 | if (o_events != events || o_reify & EV_IOFDSET) |
990 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
991 | anfd->events |= (unsigned char)w->events; |
|
|
992 | |
|
|
993 | if (o_events != anfd->events) |
|
|
994 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
995 | } |
|
|
996 | |
|
|
997 | if (o_reify & EV__IOFDSET) |
732 | backend_modify (EV_A_ fd, o_events, events); |
998 | backend_modify (EV_A_ fd, o_events, anfd->events); |
733 | } |
|
|
734 | } |
999 | } |
735 | |
1000 | |
736 | fdchangecnt = 0; |
1001 | fdchangecnt = 0; |
737 | } |
1002 | } |
738 | |
1003 | |
739 | void inline_size |
1004 | /* something about the given fd changed */ |
|
|
1005 | inline_size void |
740 | fd_change (EV_P_ int fd, int flags) |
1006 | fd_change (EV_P_ int fd, int flags) |
741 | { |
1007 | { |
742 | unsigned char reify = anfds [fd].reify; |
1008 | unsigned char reify = anfds [fd].reify; |
743 | anfds [fd].reify |= flags; |
1009 | anfds [fd].reify |= flags; |
744 | |
1010 | |
… | |
… | |
748 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1014 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
749 | fdchanges [fdchangecnt - 1] = fd; |
1015 | fdchanges [fdchangecnt - 1] = fd; |
750 | } |
1016 | } |
751 | } |
1017 | } |
752 | |
1018 | |
753 | void inline_speed |
1019 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1020 | inline_speed void |
754 | fd_kill (EV_P_ int fd) |
1021 | fd_kill (EV_P_ int fd) |
755 | { |
1022 | { |
756 | ev_io *w; |
1023 | ev_io *w; |
757 | |
1024 | |
758 | while ((w = (ev_io *)anfds [fd].head)) |
1025 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
760 | ev_io_stop (EV_A_ w); |
1027 | ev_io_stop (EV_A_ w); |
761 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1028 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
762 | } |
1029 | } |
763 | } |
1030 | } |
764 | |
1031 | |
765 | int inline_size |
1032 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1033 | inline_size int |
766 | fd_valid (int fd) |
1034 | fd_valid (int fd) |
767 | { |
1035 | { |
768 | #ifdef _WIN32 |
1036 | #ifdef _WIN32 |
769 | return _get_osfhandle (fd) != -1; |
1037 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
770 | #else |
1038 | #else |
771 | return fcntl (fd, F_GETFD) != -1; |
1039 | return fcntl (fd, F_GETFD) != -1; |
772 | #endif |
1040 | #endif |
773 | } |
1041 | } |
774 | |
1042 | |
… | |
… | |
792 | |
1060 | |
793 | for (fd = anfdmax; fd--; ) |
1061 | for (fd = anfdmax; fd--; ) |
794 | if (anfds [fd].events) |
1062 | if (anfds [fd].events) |
795 | { |
1063 | { |
796 | fd_kill (EV_A_ fd); |
1064 | fd_kill (EV_A_ fd); |
797 | return; |
1065 | break; |
798 | } |
1066 | } |
799 | } |
1067 | } |
800 | |
1068 | |
801 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1069 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
802 | static void noinline |
1070 | static void noinline |
… | |
… | |
806 | |
1074 | |
807 | for (fd = 0; fd < anfdmax; ++fd) |
1075 | for (fd = 0; fd < anfdmax; ++fd) |
808 | if (anfds [fd].events) |
1076 | if (anfds [fd].events) |
809 | { |
1077 | { |
810 | anfds [fd].events = 0; |
1078 | anfds [fd].events = 0; |
|
|
1079 | anfds [fd].emask = 0; |
811 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1080 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
812 | } |
1081 | } |
813 | } |
1082 | } |
814 | |
1083 | |
|
|
1084 | /* used to prepare libev internal fd's */ |
|
|
1085 | /* this is not fork-safe */ |
|
|
1086 | inline_speed void |
|
|
1087 | fd_intern (int fd) |
|
|
1088 | { |
|
|
1089 | #ifdef _WIN32 |
|
|
1090 | unsigned long arg = 1; |
|
|
1091 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1092 | #else |
|
|
1093 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1094 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1095 | #endif |
|
|
1096 | } |
|
|
1097 | |
815 | /*****************************************************************************/ |
1098 | /*****************************************************************************/ |
816 | |
1099 | |
817 | /* |
1100 | /* |
818 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1101 | * the heap functions want a real array index. array index 0 is guaranteed to not |
819 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1102 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
820 | * the branching factor of the d-tree. |
1103 | * the branching factor of the d-tree. |
821 | */ |
1104 | */ |
822 | |
1105 | |
823 | /* |
1106 | /* |
… | |
… | |
832 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1115 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
833 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1116 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
834 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1117 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
835 | |
1118 | |
836 | /* away from the root */ |
1119 | /* away from the root */ |
837 | void inline_speed |
1120 | inline_speed void |
838 | downheap (ANHE *heap, int N, int k) |
1121 | downheap (ANHE *heap, int N, int k) |
839 | { |
1122 | { |
840 | ANHE he = heap [k]; |
1123 | ANHE he = heap [k]; |
841 | ANHE *E = heap + N + HEAP0; |
1124 | ANHE *E = heap + N + HEAP0; |
842 | |
1125 | |
… | |
… | |
882 | #define HEAP0 1 |
1165 | #define HEAP0 1 |
883 | #define HPARENT(k) ((k) >> 1) |
1166 | #define HPARENT(k) ((k) >> 1) |
884 | #define UPHEAP_DONE(p,k) (!(p)) |
1167 | #define UPHEAP_DONE(p,k) (!(p)) |
885 | |
1168 | |
886 | /* away from the root */ |
1169 | /* away from the root */ |
887 | void inline_speed |
1170 | inline_speed void |
888 | downheap (ANHE *heap, int N, int k) |
1171 | downheap (ANHE *heap, int N, int k) |
889 | { |
1172 | { |
890 | ANHE he = heap [k]; |
1173 | ANHE he = heap [k]; |
891 | |
1174 | |
892 | for (;;) |
1175 | for (;;) |
893 | { |
1176 | { |
894 | int c = k << 1; |
1177 | int c = k << 1; |
895 | |
1178 | |
896 | if (c > N + HEAP0 - 1) |
1179 | if (c >= N + HEAP0) |
897 | break; |
1180 | break; |
898 | |
1181 | |
899 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1182 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
900 | ? 1 : 0; |
1183 | ? 1 : 0; |
901 | |
1184 | |
… | |
… | |
912 | ev_active (ANHE_w (he)) = k; |
1195 | ev_active (ANHE_w (he)) = k; |
913 | } |
1196 | } |
914 | #endif |
1197 | #endif |
915 | |
1198 | |
916 | /* towards the root */ |
1199 | /* towards the root */ |
917 | void inline_speed |
1200 | inline_speed void |
918 | upheap (ANHE *heap, int k) |
1201 | upheap (ANHE *heap, int k) |
919 | { |
1202 | { |
920 | ANHE he = heap [k]; |
1203 | ANHE he = heap [k]; |
921 | |
1204 | |
922 | for (;;) |
1205 | for (;;) |
… | |
… | |
933 | |
1216 | |
934 | heap [k] = he; |
1217 | heap [k] = he; |
935 | ev_active (ANHE_w (he)) = k; |
1218 | ev_active (ANHE_w (he)) = k; |
936 | } |
1219 | } |
937 | |
1220 | |
938 | void inline_size |
1221 | /* move an element suitably so it is in a correct place */ |
|
|
1222 | inline_size void |
939 | adjustheap (ANHE *heap, int N, int k) |
1223 | adjustheap (ANHE *heap, int N, int k) |
940 | { |
1224 | { |
941 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1225 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
942 | upheap (heap, k); |
1226 | upheap (heap, k); |
943 | else |
1227 | else |
944 | downheap (heap, N, k); |
1228 | downheap (heap, N, k); |
945 | } |
1229 | } |
946 | |
1230 | |
947 | /* rebuild the heap: this function is used only once and executed rarely */ |
1231 | /* rebuild the heap: this function is used only once and executed rarely */ |
948 | void inline_size |
1232 | inline_size void |
949 | reheap (ANHE *heap, int N) |
1233 | reheap (ANHE *heap, int N) |
950 | { |
1234 | { |
951 | int i; |
1235 | int i; |
952 | |
1236 | |
953 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1237 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
956 | upheap (heap, i + HEAP0); |
1240 | upheap (heap, i + HEAP0); |
957 | } |
1241 | } |
958 | |
1242 | |
959 | /*****************************************************************************/ |
1243 | /*****************************************************************************/ |
960 | |
1244 | |
|
|
1245 | /* associate signal watchers to a signal signal */ |
961 | typedef struct |
1246 | typedef struct |
962 | { |
1247 | { |
|
|
1248 | EV_ATOMIC_T pending; |
|
|
1249 | #if EV_MULTIPLICITY |
|
|
1250 | EV_P; |
|
|
1251 | #endif |
963 | WL head; |
1252 | WL head; |
964 | EV_ATOMIC_T gotsig; |
|
|
965 | } ANSIG; |
1253 | } ANSIG; |
966 | |
1254 | |
967 | static ANSIG *signals; |
1255 | static ANSIG signals [EV_NSIG - 1]; |
968 | static int signalmax; |
|
|
969 | |
|
|
970 | static EV_ATOMIC_T gotsig; |
|
|
971 | |
1256 | |
972 | /*****************************************************************************/ |
1257 | /*****************************************************************************/ |
973 | |
1258 | |
974 | void inline_speed |
1259 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
975 | fd_intern (int fd) |
|
|
976 | { |
|
|
977 | #ifdef _WIN32 |
|
|
978 | unsigned long arg = 1; |
|
|
979 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
980 | #else |
|
|
981 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
982 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
983 | #endif |
|
|
984 | } |
|
|
985 | |
1260 | |
986 | static void noinline |
1261 | static void noinline |
987 | evpipe_init (EV_P) |
1262 | evpipe_init (EV_P) |
988 | { |
1263 | { |
989 | if (!ev_is_active (&pipeev)) |
1264 | if (!ev_is_active (&pipe_w)) |
990 | { |
1265 | { |
991 | #if EV_USE_EVENTFD |
1266 | # if EV_USE_EVENTFD |
|
|
1267 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1268 | if (evfd < 0 && errno == EINVAL) |
992 | if ((evfd = eventfd (0, 0)) >= 0) |
1269 | evfd = eventfd (0, 0); |
|
|
1270 | |
|
|
1271 | if (evfd >= 0) |
993 | { |
1272 | { |
994 | evpipe [0] = -1; |
1273 | evpipe [0] = -1; |
995 | fd_intern (evfd); |
1274 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
996 | ev_io_set (&pipeev, evfd, EV_READ); |
1275 | ev_io_set (&pipe_w, evfd, EV_READ); |
997 | } |
1276 | } |
998 | else |
1277 | else |
999 | #endif |
1278 | # endif |
1000 | { |
1279 | { |
1001 | while (pipe (evpipe)) |
1280 | while (pipe (evpipe)) |
1002 | syserr ("(libev) error creating signal/async pipe"); |
1281 | ev_syserr ("(libev) error creating signal/async pipe"); |
1003 | |
1282 | |
1004 | fd_intern (evpipe [0]); |
1283 | fd_intern (evpipe [0]); |
1005 | fd_intern (evpipe [1]); |
1284 | fd_intern (evpipe [1]); |
1006 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1285 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1007 | } |
1286 | } |
1008 | |
1287 | |
1009 | ev_io_start (EV_A_ &pipeev); |
1288 | ev_io_start (EV_A_ &pipe_w); |
1010 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1289 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1011 | } |
1290 | } |
1012 | } |
1291 | } |
1013 | |
1292 | |
1014 | void inline_size |
1293 | inline_size void |
1015 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1294 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1016 | { |
1295 | { |
1017 | if (!*flag) |
1296 | if (!*flag) |
1018 | { |
1297 | { |
1019 | int old_errno = errno; /* save errno because write might clobber it */ |
1298 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1299 | char dummy; |
1020 | |
1300 | |
1021 | *flag = 1; |
1301 | *flag = 1; |
1022 | |
1302 | |
1023 | #if EV_USE_EVENTFD |
1303 | #if EV_USE_EVENTFD |
1024 | if (evfd >= 0) |
1304 | if (evfd >= 0) |
… | |
… | |
1026 | uint64_t counter = 1; |
1306 | uint64_t counter = 1; |
1027 | write (evfd, &counter, sizeof (uint64_t)); |
1307 | write (evfd, &counter, sizeof (uint64_t)); |
1028 | } |
1308 | } |
1029 | else |
1309 | else |
1030 | #endif |
1310 | #endif |
|
|
1311 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1312 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1313 | /* so when you think this write should be a send instead, please find out */ |
|
|
1314 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1315 | /* tell me. thank you. */ |
1031 | write (evpipe [1], &old_errno, 1); |
1316 | write (evpipe [1], &dummy, 1); |
1032 | |
1317 | |
1033 | errno = old_errno; |
1318 | errno = old_errno; |
1034 | } |
1319 | } |
1035 | } |
1320 | } |
1036 | |
1321 | |
|
|
1322 | /* called whenever the libev signal pipe */ |
|
|
1323 | /* got some events (signal, async) */ |
1037 | static void |
1324 | static void |
1038 | pipecb (EV_P_ ev_io *iow, int revents) |
1325 | pipecb (EV_P_ ev_io *iow, int revents) |
1039 | { |
1326 | { |
|
|
1327 | int i; |
|
|
1328 | |
1040 | #if EV_USE_EVENTFD |
1329 | #if EV_USE_EVENTFD |
1041 | if (evfd >= 0) |
1330 | if (evfd >= 0) |
1042 | { |
1331 | { |
1043 | uint64_t counter; |
1332 | uint64_t counter; |
1044 | read (evfd, &counter, sizeof (uint64_t)); |
1333 | read (evfd, &counter, sizeof (uint64_t)); |
1045 | } |
1334 | } |
1046 | else |
1335 | else |
1047 | #endif |
1336 | #endif |
1048 | { |
1337 | { |
1049 | char dummy; |
1338 | char dummy; |
|
|
1339 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1050 | read (evpipe [0], &dummy, 1); |
1340 | read (evpipe [0], &dummy, 1); |
1051 | } |
1341 | } |
1052 | |
1342 | |
1053 | if (gotsig && ev_is_default_loop (EV_A)) |
1343 | if (sig_pending) |
1054 | { |
1344 | { |
1055 | int signum; |
1345 | sig_pending = 0; |
1056 | gotsig = 0; |
|
|
1057 | |
1346 | |
1058 | for (signum = signalmax; signum--; ) |
1347 | for (i = EV_NSIG - 1; i--; ) |
1059 | if (signals [signum].gotsig) |
1348 | if (expect_false (signals [i].pending)) |
1060 | ev_feed_signal_event (EV_A_ signum + 1); |
1349 | ev_feed_signal_event (EV_A_ i + 1); |
1061 | } |
1350 | } |
1062 | |
1351 | |
1063 | #if EV_ASYNC_ENABLE |
1352 | #if EV_ASYNC_ENABLE |
1064 | if (gotasync) |
1353 | if (async_pending) |
1065 | { |
1354 | { |
1066 | int i; |
1355 | async_pending = 0; |
1067 | gotasync = 0; |
|
|
1068 | |
1356 | |
1069 | for (i = asynccnt; i--; ) |
1357 | for (i = asynccnt; i--; ) |
1070 | if (asyncs [i]->sent) |
1358 | if (asyncs [i]->sent) |
1071 | { |
1359 | { |
1072 | asyncs [i]->sent = 0; |
1360 | asyncs [i]->sent = 0; |
… | |
… | |
1080 | |
1368 | |
1081 | static void |
1369 | static void |
1082 | ev_sighandler (int signum) |
1370 | ev_sighandler (int signum) |
1083 | { |
1371 | { |
1084 | #if EV_MULTIPLICITY |
1372 | #if EV_MULTIPLICITY |
1085 | struct ev_loop *loop = &default_loop_struct; |
1373 | EV_P = signals [signum - 1].loop; |
1086 | #endif |
1374 | #endif |
1087 | |
1375 | |
1088 | #if _WIN32 |
1376 | #ifdef _WIN32 |
1089 | signal (signum, ev_sighandler); |
1377 | signal (signum, ev_sighandler); |
1090 | #endif |
1378 | #endif |
1091 | |
1379 | |
1092 | signals [signum - 1].gotsig = 1; |
1380 | signals [signum - 1].pending = 1; |
1093 | evpipe_write (EV_A_ &gotsig); |
1381 | evpipe_write (EV_A_ &sig_pending); |
1094 | } |
1382 | } |
1095 | |
1383 | |
1096 | void noinline |
1384 | void noinline |
1097 | ev_feed_signal_event (EV_P_ int signum) |
1385 | ev_feed_signal_event (EV_P_ int signum) |
1098 | { |
1386 | { |
1099 | WL w; |
1387 | WL w; |
1100 | |
1388 | |
|
|
1389 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1390 | return; |
|
|
1391 | |
|
|
1392 | --signum; |
|
|
1393 | |
1101 | #if EV_MULTIPLICITY |
1394 | #if EV_MULTIPLICITY |
1102 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1395 | /* it is permissible to try to feed a signal to the wrong loop */ |
1103 | #endif |
1396 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1104 | |
1397 | |
1105 | --signum; |
1398 | if (expect_false (signals [signum].loop != EV_A)) |
1106 | |
|
|
1107 | if (signum < 0 || signum >= signalmax) |
|
|
1108 | return; |
1399 | return; |
|
|
1400 | #endif |
1109 | |
1401 | |
1110 | signals [signum].gotsig = 0; |
1402 | signals [signum].pending = 0; |
1111 | |
1403 | |
1112 | for (w = signals [signum].head; w; w = w->next) |
1404 | for (w = signals [signum].head; w; w = w->next) |
1113 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1405 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1114 | } |
1406 | } |
1115 | |
1407 | |
|
|
1408 | #if EV_USE_SIGNALFD |
|
|
1409 | static void |
|
|
1410 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1411 | { |
|
|
1412 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1413 | |
|
|
1414 | for (;;) |
|
|
1415 | { |
|
|
1416 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1417 | |
|
|
1418 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1419 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1420 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1421 | |
|
|
1422 | if (res < (ssize_t)sizeof (si)) |
|
|
1423 | break; |
|
|
1424 | } |
|
|
1425 | } |
|
|
1426 | #endif |
|
|
1427 | |
|
|
1428 | #endif |
|
|
1429 | |
1116 | /*****************************************************************************/ |
1430 | /*****************************************************************************/ |
1117 | |
1431 | |
|
|
1432 | #if EV_CHILD_ENABLE |
1118 | static WL childs [EV_PID_HASHSIZE]; |
1433 | static WL childs [EV_PID_HASHSIZE]; |
1119 | |
|
|
1120 | #ifndef _WIN32 |
|
|
1121 | |
1434 | |
1122 | static ev_signal childev; |
1435 | static ev_signal childev; |
1123 | |
1436 | |
1124 | #ifndef WIFCONTINUED |
1437 | #ifndef WIFCONTINUED |
1125 | # define WIFCONTINUED(status) 0 |
1438 | # define WIFCONTINUED(status) 0 |
1126 | #endif |
1439 | #endif |
1127 | |
1440 | |
1128 | void inline_speed |
1441 | /* handle a single child status event */ |
|
|
1442 | inline_speed void |
1129 | child_reap (EV_P_ int chain, int pid, int status) |
1443 | child_reap (EV_P_ int chain, int pid, int status) |
1130 | { |
1444 | { |
1131 | ev_child *w; |
1445 | ev_child *w; |
1132 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1446 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1133 | |
1447 | |
1134 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1448 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1135 | { |
1449 | { |
1136 | if ((w->pid == pid || !w->pid) |
1450 | if ((w->pid == pid || !w->pid) |
1137 | && (!traced || (w->flags & 1))) |
1451 | && (!traced || (w->flags & 1))) |
1138 | { |
1452 | { |
1139 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1453 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1146 | |
1460 | |
1147 | #ifndef WCONTINUED |
1461 | #ifndef WCONTINUED |
1148 | # define WCONTINUED 0 |
1462 | # define WCONTINUED 0 |
1149 | #endif |
1463 | #endif |
1150 | |
1464 | |
|
|
1465 | /* called on sigchld etc., calls waitpid */ |
1151 | static void |
1466 | static void |
1152 | childcb (EV_P_ ev_signal *sw, int revents) |
1467 | childcb (EV_P_ ev_signal *sw, int revents) |
1153 | { |
1468 | { |
1154 | int pid, status; |
1469 | int pid, status; |
1155 | |
1470 | |
… | |
… | |
1163 | /* make sure we are called again until all children have been reaped */ |
1478 | /* make sure we are called again until all children have been reaped */ |
1164 | /* we need to do it this way so that the callback gets called before we continue */ |
1479 | /* we need to do it this way so that the callback gets called before we continue */ |
1165 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1480 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1166 | |
1481 | |
1167 | child_reap (EV_A_ pid, pid, status); |
1482 | child_reap (EV_A_ pid, pid, status); |
1168 | if (EV_PID_HASHSIZE > 1) |
1483 | if ((EV_PID_HASHSIZE) > 1) |
1169 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1484 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1170 | } |
1485 | } |
1171 | |
1486 | |
1172 | #endif |
1487 | #endif |
1173 | |
1488 | |
… | |
… | |
1236 | /* kqueue is borked on everything but netbsd apparently */ |
1551 | /* kqueue is borked on everything but netbsd apparently */ |
1237 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1552 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1238 | flags &= ~EVBACKEND_KQUEUE; |
1553 | flags &= ~EVBACKEND_KQUEUE; |
1239 | #endif |
1554 | #endif |
1240 | #ifdef __APPLE__ |
1555 | #ifdef __APPLE__ |
1241 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1556 | /* only select works correctly on that "unix-certified" platform */ |
1242 | flags &= ~EVBACKEND_POLL; |
1557 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1558 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1559 | #endif |
|
|
1560 | #ifdef __FreeBSD__ |
|
|
1561 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1243 | #endif |
1562 | #endif |
1244 | |
1563 | |
1245 | return flags; |
1564 | return flags; |
1246 | } |
1565 | } |
1247 | |
1566 | |
… | |
… | |
1249 | ev_embeddable_backends (void) |
1568 | ev_embeddable_backends (void) |
1250 | { |
1569 | { |
1251 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1570 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1252 | |
1571 | |
1253 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1572 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1254 | /* please fix it and tell me how to detect the fix */ |
1573 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1255 | flags &= ~EVBACKEND_EPOLL; |
1574 | flags &= ~EVBACKEND_EPOLL; |
1256 | |
1575 | |
1257 | return flags; |
1576 | return flags; |
1258 | } |
1577 | } |
1259 | |
1578 | |
1260 | unsigned int |
1579 | unsigned int |
1261 | ev_backend (EV_P) |
1580 | ev_backend (EV_P) |
1262 | { |
1581 | { |
1263 | return backend; |
1582 | return backend; |
1264 | } |
1583 | } |
1265 | |
1584 | |
|
|
1585 | #if EV_FEATURE_API |
1266 | unsigned int |
1586 | unsigned int |
1267 | ev_loop_count (EV_P) |
1587 | ev_iteration (EV_P) |
1268 | { |
1588 | { |
1269 | return loop_count; |
1589 | return loop_count; |
1270 | } |
1590 | } |
1271 | |
1591 | |
|
|
1592 | unsigned int |
|
|
1593 | ev_depth (EV_P) |
|
|
1594 | { |
|
|
1595 | return loop_depth; |
|
|
1596 | } |
|
|
1597 | |
1272 | void |
1598 | void |
1273 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1599 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1274 | { |
1600 | { |
1275 | io_blocktime = interval; |
1601 | io_blocktime = interval; |
1276 | } |
1602 | } |
… | |
… | |
1279 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1605 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1280 | { |
1606 | { |
1281 | timeout_blocktime = interval; |
1607 | timeout_blocktime = interval; |
1282 | } |
1608 | } |
1283 | |
1609 | |
|
|
1610 | void |
|
|
1611 | ev_set_userdata (EV_P_ void *data) |
|
|
1612 | { |
|
|
1613 | userdata = data; |
|
|
1614 | } |
|
|
1615 | |
|
|
1616 | void * |
|
|
1617 | ev_userdata (EV_P) |
|
|
1618 | { |
|
|
1619 | return userdata; |
|
|
1620 | } |
|
|
1621 | |
|
|
1622 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1623 | { |
|
|
1624 | invoke_cb = invoke_pending_cb; |
|
|
1625 | } |
|
|
1626 | |
|
|
1627 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1628 | { |
|
|
1629 | release_cb = release; |
|
|
1630 | acquire_cb = acquire; |
|
|
1631 | } |
|
|
1632 | #endif |
|
|
1633 | |
|
|
1634 | /* initialise a loop structure, must be zero-initialised */ |
1284 | static void noinline |
1635 | static void noinline |
1285 | loop_init (EV_P_ unsigned int flags) |
1636 | loop_init (EV_P_ unsigned int flags) |
1286 | { |
1637 | { |
1287 | if (!backend) |
1638 | if (!backend) |
1288 | { |
1639 | { |
|
|
1640 | #if EV_USE_REALTIME |
|
|
1641 | if (!have_realtime) |
|
|
1642 | { |
|
|
1643 | struct timespec ts; |
|
|
1644 | |
|
|
1645 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1646 | have_realtime = 1; |
|
|
1647 | } |
|
|
1648 | #endif |
|
|
1649 | |
1289 | #if EV_USE_MONOTONIC |
1650 | #if EV_USE_MONOTONIC |
|
|
1651 | if (!have_monotonic) |
1290 | { |
1652 | { |
1291 | struct timespec ts; |
1653 | struct timespec ts; |
|
|
1654 | |
1292 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1655 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1293 | have_monotonic = 1; |
1656 | have_monotonic = 1; |
1294 | } |
1657 | } |
1295 | #endif |
1658 | #endif |
|
|
1659 | |
|
|
1660 | /* pid check not overridable via env */ |
|
|
1661 | #ifndef _WIN32 |
|
|
1662 | if (flags & EVFLAG_FORKCHECK) |
|
|
1663 | curpid = getpid (); |
|
|
1664 | #endif |
|
|
1665 | |
|
|
1666 | if (!(flags & EVFLAG_NOENV) |
|
|
1667 | && !enable_secure () |
|
|
1668 | && getenv ("LIBEV_FLAGS")) |
|
|
1669 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1296 | |
1670 | |
1297 | ev_rt_now = ev_time (); |
1671 | ev_rt_now = ev_time (); |
1298 | mn_now = get_clock (); |
1672 | mn_now = get_clock (); |
1299 | now_floor = mn_now; |
1673 | now_floor = mn_now; |
1300 | rtmn_diff = ev_rt_now - mn_now; |
1674 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1675 | #if EV_FEATURE_API |
|
|
1676 | invoke_cb = ev_invoke_pending; |
|
|
1677 | #endif |
1301 | |
1678 | |
1302 | io_blocktime = 0.; |
1679 | io_blocktime = 0.; |
1303 | timeout_blocktime = 0.; |
1680 | timeout_blocktime = 0.; |
1304 | backend = 0; |
1681 | backend = 0; |
1305 | backend_fd = -1; |
1682 | backend_fd = -1; |
1306 | gotasync = 0; |
1683 | sig_pending = 0; |
|
|
1684 | #if EV_ASYNC_ENABLE |
|
|
1685 | async_pending = 0; |
|
|
1686 | #endif |
1307 | #if EV_USE_INOTIFY |
1687 | #if EV_USE_INOTIFY |
1308 | fs_fd = -2; |
1688 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1309 | #endif |
1689 | #endif |
1310 | |
1690 | #if EV_USE_SIGNALFD |
1311 | /* pid check not overridable via env */ |
1691 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1312 | #ifndef _WIN32 |
|
|
1313 | if (flags & EVFLAG_FORKCHECK) |
|
|
1314 | curpid = getpid (); |
|
|
1315 | #endif |
1692 | #endif |
1316 | |
|
|
1317 | if (!(flags & EVFLAG_NOENV) |
|
|
1318 | && !enable_secure () |
|
|
1319 | && getenv ("LIBEV_FLAGS")) |
|
|
1320 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1321 | |
1693 | |
1322 | if (!(flags & 0x0000ffffU)) |
1694 | if (!(flags & 0x0000ffffU)) |
1323 | flags |= ev_recommended_backends (); |
1695 | flags |= ev_recommended_backends (); |
1324 | |
1696 | |
1325 | #if EV_USE_PORT |
1697 | #if EV_USE_PORT |
… | |
… | |
1336 | #endif |
1708 | #endif |
1337 | #if EV_USE_SELECT |
1709 | #if EV_USE_SELECT |
1338 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1710 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1339 | #endif |
1711 | #endif |
1340 | |
1712 | |
|
|
1713 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1714 | |
|
|
1715 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1341 | ev_init (&pipeev, pipecb); |
1716 | ev_init (&pipe_w, pipecb); |
1342 | ev_set_priority (&pipeev, EV_MAXPRI); |
1717 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1718 | #endif |
1343 | } |
1719 | } |
1344 | } |
1720 | } |
1345 | |
1721 | |
|
|
1722 | /* free up a loop structure */ |
1346 | static void noinline |
1723 | static void noinline |
1347 | loop_destroy (EV_P) |
1724 | loop_destroy (EV_P) |
1348 | { |
1725 | { |
1349 | int i; |
1726 | int i; |
1350 | |
1727 | |
1351 | if (ev_is_active (&pipeev)) |
1728 | if (ev_is_active (&pipe_w)) |
1352 | { |
1729 | { |
1353 | ev_ref (EV_A); /* signal watcher */ |
1730 | /*ev_ref (EV_A);*/ |
1354 | ev_io_stop (EV_A_ &pipeev); |
1731 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1355 | |
1732 | |
1356 | #if EV_USE_EVENTFD |
1733 | #if EV_USE_EVENTFD |
1357 | if (evfd >= 0) |
1734 | if (evfd >= 0) |
1358 | close (evfd); |
1735 | close (evfd); |
1359 | #endif |
1736 | #endif |
1360 | |
1737 | |
1361 | if (evpipe [0] >= 0) |
1738 | if (evpipe [0] >= 0) |
1362 | { |
1739 | { |
1363 | close (evpipe [0]); |
1740 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1364 | close (evpipe [1]); |
1741 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1365 | } |
1742 | } |
1366 | } |
1743 | } |
|
|
1744 | |
|
|
1745 | #if EV_USE_SIGNALFD |
|
|
1746 | if (ev_is_active (&sigfd_w)) |
|
|
1747 | close (sigfd); |
|
|
1748 | #endif |
1367 | |
1749 | |
1368 | #if EV_USE_INOTIFY |
1750 | #if EV_USE_INOTIFY |
1369 | if (fs_fd >= 0) |
1751 | if (fs_fd >= 0) |
1370 | close (fs_fd); |
1752 | close (fs_fd); |
1371 | #endif |
1753 | #endif |
… | |
… | |
1395 | #if EV_IDLE_ENABLE |
1777 | #if EV_IDLE_ENABLE |
1396 | array_free (idle, [i]); |
1778 | array_free (idle, [i]); |
1397 | #endif |
1779 | #endif |
1398 | } |
1780 | } |
1399 | |
1781 | |
1400 | ev_free (anfds); anfdmax = 0; |
1782 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1401 | |
1783 | |
1402 | /* have to use the microsoft-never-gets-it-right macro */ |
1784 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1785 | array_free (rfeed, EMPTY); |
1403 | array_free (fdchange, EMPTY); |
1786 | array_free (fdchange, EMPTY); |
1404 | array_free (timer, EMPTY); |
1787 | array_free (timer, EMPTY); |
1405 | #if EV_PERIODIC_ENABLE |
1788 | #if EV_PERIODIC_ENABLE |
1406 | array_free (periodic, EMPTY); |
1789 | array_free (periodic, EMPTY); |
1407 | #endif |
1790 | #endif |
… | |
… | |
1416 | |
1799 | |
1417 | backend = 0; |
1800 | backend = 0; |
1418 | } |
1801 | } |
1419 | |
1802 | |
1420 | #if EV_USE_INOTIFY |
1803 | #if EV_USE_INOTIFY |
1421 | void inline_size infy_fork (EV_P); |
1804 | inline_size void infy_fork (EV_P); |
1422 | #endif |
1805 | #endif |
1423 | |
1806 | |
1424 | void inline_size |
1807 | inline_size void |
1425 | loop_fork (EV_P) |
1808 | loop_fork (EV_P) |
1426 | { |
1809 | { |
1427 | #if EV_USE_PORT |
1810 | #if EV_USE_PORT |
1428 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1811 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1429 | #endif |
1812 | #endif |
… | |
… | |
1435 | #endif |
1818 | #endif |
1436 | #if EV_USE_INOTIFY |
1819 | #if EV_USE_INOTIFY |
1437 | infy_fork (EV_A); |
1820 | infy_fork (EV_A); |
1438 | #endif |
1821 | #endif |
1439 | |
1822 | |
1440 | if (ev_is_active (&pipeev)) |
1823 | if (ev_is_active (&pipe_w)) |
1441 | { |
1824 | { |
1442 | /* this "locks" the handlers against writing to the pipe */ |
1825 | /* this "locks" the handlers against writing to the pipe */ |
1443 | /* while we modify the fd vars */ |
1826 | /* while we modify the fd vars */ |
1444 | gotsig = 1; |
1827 | sig_pending = 1; |
1445 | #if EV_ASYNC_ENABLE |
1828 | #if EV_ASYNC_ENABLE |
1446 | gotasync = 1; |
1829 | async_pending = 1; |
1447 | #endif |
1830 | #endif |
1448 | |
1831 | |
1449 | ev_ref (EV_A); |
1832 | ev_ref (EV_A); |
1450 | ev_io_stop (EV_A_ &pipeev); |
1833 | ev_io_stop (EV_A_ &pipe_w); |
1451 | |
1834 | |
1452 | #if EV_USE_EVENTFD |
1835 | #if EV_USE_EVENTFD |
1453 | if (evfd >= 0) |
1836 | if (evfd >= 0) |
1454 | close (evfd); |
1837 | close (evfd); |
1455 | #endif |
1838 | #endif |
1456 | |
1839 | |
1457 | if (evpipe [0] >= 0) |
1840 | if (evpipe [0] >= 0) |
1458 | { |
1841 | { |
1459 | close (evpipe [0]); |
1842 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1460 | close (evpipe [1]); |
1843 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1461 | } |
1844 | } |
1462 | |
1845 | |
|
|
1846 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1463 | evpipe_init (EV_A); |
1847 | evpipe_init (EV_A); |
1464 | /* now iterate over everything, in case we missed something */ |
1848 | /* now iterate over everything, in case we missed something */ |
1465 | pipecb (EV_A_ &pipeev, EV_READ); |
1849 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1850 | #endif |
1466 | } |
1851 | } |
1467 | |
1852 | |
1468 | postfork = 0; |
1853 | postfork = 0; |
1469 | } |
1854 | } |
1470 | |
1855 | |
1471 | #if EV_MULTIPLICITY |
1856 | #if EV_MULTIPLICITY |
1472 | |
1857 | |
1473 | struct ev_loop * |
1858 | struct ev_loop * |
1474 | ev_loop_new (unsigned int flags) |
1859 | ev_loop_new (unsigned int flags) |
1475 | { |
1860 | { |
1476 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1861 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1477 | |
1862 | |
1478 | memset (loop, 0, sizeof (struct ev_loop)); |
1863 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1479 | |
|
|
1480 | loop_init (EV_A_ flags); |
1864 | loop_init (EV_A_ flags); |
1481 | |
1865 | |
1482 | if (ev_backend (EV_A)) |
1866 | if (ev_backend (EV_A)) |
1483 | return loop; |
1867 | return EV_A; |
1484 | |
1868 | |
1485 | return 0; |
1869 | return 0; |
1486 | } |
1870 | } |
1487 | |
1871 | |
1488 | void |
1872 | void |
… | |
… | |
1495 | void |
1879 | void |
1496 | ev_loop_fork (EV_P) |
1880 | ev_loop_fork (EV_P) |
1497 | { |
1881 | { |
1498 | postfork = 1; /* must be in line with ev_default_fork */ |
1882 | postfork = 1; /* must be in line with ev_default_fork */ |
1499 | } |
1883 | } |
|
|
1884 | #endif /* multiplicity */ |
1500 | |
1885 | |
1501 | #if EV_VERIFY |
1886 | #if EV_VERIFY |
1502 | static void noinline |
1887 | static void noinline |
1503 | verify_watcher (EV_P_ W w) |
1888 | verify_watcher (EV_P_ W w) |
1504 | { |
1889 | { |
1505 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1890 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1506 | |
1891 | |
1507 | if (w->pending) |
1892 | if (w->pending) |
1508 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1893 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1509 | } |
1894 | } |
1510 | |
1895 | |
1511 | static void noinline |
1896 | static void noinline |
1512 | verify_heap (EV_P_ ANHE *heap, int N) |
1897 | verify_heap (EV_P_ ANHE *heap, int N) |
1513 | { |
1898 | { |
1514 | int i; |
1899 | int i; |
1515 | |
1900 | |
1516 | for (i = HEAP0; i < N + HEAP0; ++i) |
1901 | for (i = HEAP0; i < N + HEAP0; ++i) |
1517 | { |
1902 | { |
1518 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1903 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1519 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1904 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1520 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1905 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1521 | |
1906 | |
1522 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1907 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1523 | } |
1908 | } |
1524 | } |
1909 | } |
1525 | |
1910 | |
1526 | static void noinline |
1911 | static void noinline |
1527 | array_verify (EV_P_ W *ws, int cnt) |
1912 | array_verify (EV_P_ W *ws, int cnt) |
1528 | { |
1913 | { |
1529 | while (cnt--) |
1914 | while (cnt--) |
1530 | { |
1915 | { |
1531 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1916 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1532 | verify_watcher (EV_A_ ws [cnt]); |
1917 | verify_watcher (EV_A_ ws [cnt]); |
1533 | } |
1918 | } |
1534 | } |
1919 | } |
1535 | #endif |
1920 | #endif |
1536 | |
1921 | |
|
|
1922 | #if EV_FEATURE_API |
1537 | void |
1923 | void |
1538 | ev_loop_verify (EV_P) |
1924 | ev_verify (EV_P) |
1539 | { |
1925 | { |
1540 | #if EV_VERIFY |
1926 | #if EV_VERIFY |
1541 | int i; |
1927 | int i; |
1542 | WL w; |
1928 | WL w; |
1543 | |
1929 | |
1544 | assert (activecnt >= -1); |
1930 | assert (activecnt >= -1); |
1545 | |
1931 | |
1546 | assert (fdchangemax >= fdchangecnt); |
1932 | assert (fdchangemax >= fdchangecnt); |
1547 | for (i = 0; i < fdchangecnt; ++i) |
1933 | for (i = 0; i < fdchangecnt; ++i) |
1548 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1934 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1549 | |
1935 | |
1550 | assert (anfdmax >= 0); |
1936 | assert (anfdmax >= 0); |
1551 | for (i = 0; i < anfdmax; ++i) |
1937 | for (i = 0; i < anfdmax; ++i) |
1552 | for (w = anfds [i].head; w; w = w->next) |
1938 | for (w = anfds [i].head; w; w = w->next) |
1553 | { |
1939 | { |
1554 | verify_watcher (EV_A_ (W)w); |
1940 | verify_watcher (EV_A_ (W)w); |
1555 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1941 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1556 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1942 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1557 | } |
1943 | } |
1558 | |
1944 | |
1559 | assert (timermax >= timercnt); |
1945 | assert (timermax >= timercnt); |
1560 | verify_heap (EV_A_ timers, timercnt); |
1946 | verify_heap (EV_A_ timers, timercnt); |
1561 | |
1947 | |
… | |
… | |
1582 | #if EV_ASYNC_ENABLE |
1968 | #if EV_ASYNC_ENABLE |
1583 | assert (asyncmax >= asynccnt); |
1969 | assert (asyncmax >= asynccnt); |
1584 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1970 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1585 | #endif |
1971 | #endif |
1586 | |
1972 | |
|
|
1973 | #if EV_PREPARE_ENABLE |
1587 | assert (preparemax >= preparecnt); |
1974 | assert (preparemax >= preparecnt); |
1588 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1975 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1976 | #endif |
1589 | |
1977 | |
|
|
1978 | #if EV_CHECK_ENABLE |
1590 | assert (checkmax >= checkcnt); |
1979 | assert (checkmax >= checkcnt); |
1591 | array_verify (EV_A_ (W *)checks, checkcnt); |
1980 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1981 | #endif |
1592 | |
1982 | |
1593 | # if 0 |
1983 | # if 0 |
|
|
1984 | #if EV_CHILD_ENABLE |
1594 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1985 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1595 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1986 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1987 | #endif |
1596 | # endif |
1988 | # endif |
1597 | #endif |
1989 | #endif |
1598 | } |
1990 | } |
1599 | |
1991 | #endif |
1600 | #endif /* multiplicity */ |
|
|
1601 | |
1992 | |
1602 | #if EV_MULTIPLICITY |
1993 | #if EV_MULTIPLICITY |
1603 | struct ev_loop * |
1994 | struct ev_loop * |
1604 | ev_default_loop_init (unsigned int flags) |
1995 | ev_default_loop_init (unsigned int flags) |
1605 | #else |
1996 | #else |
… | |
… | |
1608 | #endif |
1999 | #endif |
1609 | { |
2000 | { |
1610 | if (!ev_default_loop_ptr) |
2001 | if (!ev_default_loop_ptr) |
1611 | { |
2002 | { |
1612 | #if EV_MULTIPLICITY |
2003 | #if EV_MULTIPLICITY |
1613 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2004 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1614 | #else |
2005 | #else |
1615 | ev_default_loop_ptr = 1; |
2006 | ev_default_loop_ptr = 1; |
1616 | #endif |
2007 | #endif |
1617 | |
2008 | |
1618 | loop_init (EV_A_ flags); |
2009 | loop_init (EV_A_ flags); |
1619 | |
2010 | |
1620 | if (ev_backend (EV_A)) |
2011 | if (ev_backend (EV_A)) |
1621 | { |
2012 | { |
1622 | #ifndef _WIN32 |
2013 | #if EV_CHILD_ENABLE |
1623 | ev_signal_init (&childev, childcb, SIGCHLD); |
2014 | ev_signal_init (&childev, childcb, SIGCHLD); |
1624 | ev_set_priority (&childev, EV_MAXPRI); |
2015 | ev_set_priority (&childev, EV_MAXPRI); |
1625 | ev_signal_start (EV_A_ &childev); |
2016 | ev_signal_start (EV_A_ &childev); |
1626 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2017 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1627 | #endif |
2018 | #endif |
… | |
… | |
1635 | |
2026 | |
1636 | void |
2027 | void |
1637 | ev_default_destroy (void) |
2028 | ev_default_destroy (void) |
1638 | { |
2029 | { |
1639 | #if EV_MULTIPLICITY |
2030 | #if EV_MULTIPLICITY |
1640 | struct ev_loop *loop = ev_default_loop_ptr; |
2031 | EV_P = ev_default_loop_ptr; |
1641 | #endif |
2032 | #endif |
1642 | |
2033 | |
1643 | #ifndef _WIN32 |
2034 | ev_default_loop_ptr = 0; |
|
|
2035 | |
|
|
2036 | #if EV_CHILD_ENABLE |
1644 | ev_ref (EV_A); /* child watcher */ |
2037 | ev_ref (EV_A); /* child watcher */ |
1645 | ev_signal_stop (EV_A_ &childev); |
2038 | ev_signal_stop (EV_A_ &childev); |
1646 | #endif |
2039 | #endif |
1647 | |
2040 | |
1648 | loop_destroy (EV_A); |
2041 | loop_destroy (EV_A); |
… | |
… | |
1650 | |
2043 | |
1651 | void |
2044 | void |
1652 | ev_default_fork (void) |
2045 | ev_default_fork (void) |
1653 | { |
2046 | { |
1654 | #if EV_MULTIPLICITY |
2047 | #if EV_MULTIPLICITY |
1655 | struct ev_loop *loop = ev_default_loop_ptr; |
2048 | EV_P = ev_default_loop_ptr; |
1656 | #endif |
2049 | #endif |
1657 | |
2050 | |
1658 | if (backend) |
|
|
1659 | postfork = 1; /* must be in line with ev_loop_fork */ |
2051 | postfork = 1; /* must be in line with ev_loop_fork */ |
1660 | } |
2052 | } |
1661 | |
2053 | |
1662 | /*****************************************************************************/ |
2054 | /*****************************************************************************/ |
1663 | |
2055 | |
1664 | void |
2056 | void |
1665 | ev_invoke (EV_P_ void *w, int revents) |
2057 | ev_invoke (EV_P_ void *w, int revents) |
1666 | { |
2058 | { |
1667 | EV_CB_INVOKE ((W)w, revents); |
2059 | EV_CB_INVOKE ((W)w, revents); |
1668 | } |
2060 | } |
1669 | |
2061 | |
1670 | void inline_speed |
2062 | unsigned int |
1671 | call_pending (EV_P) |
2063 | ev_pending_count (EV_P) |
|
|
2064 | { |
|
|
2065 | int pri; |
|
|
2066 | unsigned int count = 0; |
|
|
2067 | |
|
|
2068 | for (pri = NUMPRI; pri--; ) |
|
|
2069 | count += pendingcnt [pri]; |
|
|
2070 | |
|
|
2071 | return count; |
|
|
2072 | } |
|
|
2073 | |
|
|
2074 | void noinline |
|
|
2075 | ev_invoke_pending (EV_P) |
1672 | { |
2076 | { |
1673 | int pri; |
2077 | int pri; |
1674 | |
2078 | |
1675 | for (pri = NUMPRI; pri--; ) |
2079 | for (pri = NUMPRI; pri--; ) |
1676 | while (pendingcnt [pri]) |
2080 | while (pendingcnt [pri]) |
1677 | { |
2081 | { |
1678 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2082 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1679 | |
2083 | |
1680 | if (expect_true (p->w)) |
|
|
1681 | { |
|
|
1682 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2084 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2085 | /* ^ this is no longer true, as pending_w could be here */ |
1683 | |
2086 | |
1684 | p->w->pending = 0; |
2087 | p->w->pending = 0; |
1685 | EV_CB_INVOKE (p->w, p->events); |
2088 | EV_CB_INVOKE (p->w, p->events); |
1686 | EV_FREQUENT_CHECK; |
2089 | EV_FREQUENT_CHECK; |
1687 | } |
|
|
1688 | } |
2090 | } |
1689 | } |
2091 | } |
1690 | |
2092 | |
1691 | #if EV_IDLE_ENABLE |
2093 | #if EV_IDLE_ENABLE |
1692 | void inline_size |
2094 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2095 | /* only when higher priorities are idle" logic */ |
|
|
2096 | inline_size void |
1693 | idle_reify (EV_P) |
2097 | idle_reify (EV_P) |
1694 | { |
2098 | { |
1695 | if (expect_false (idleall)) |
2099 | if (expect_false (idleall)) |
1696 | { |
2100 | { |
1697 | int pri; |
2101 | int pri; |
… | |
… | |
1709 | } |
2113 | } |
1710 | } |
2114 | } |
1711 | } |
2115 | } |
1712 | #endif |
2116 | #endif |
1713 | |
2117 | |
1714 | void inline_size |
2118 | /* make timers pending */ |
|
|
2119 | inline_size void |
1715 | timers_reify (EV_P) |
2120 | timers_reify (EV_P) |
1716 | { |
2121 | { |
1717 | EV_FREQUENT_CHECK; |
2122 | EV_FREQUENT_CHECK; |
1718 | |
2123 | |
1719 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2124 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1720 | { |
2125 | { |
1721 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2126 | do |
1722 | |
|
|
1723 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1724 | |
|
|
1725 | /* first reschedule or stop timer */ |
|
|
1726 | if (w->repeat) |
|
|
1727 | { |
2127 | { |
|
|
2128 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2129 | |
|
|
2130 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2131 | |
|
|
2132 | /* first reschedule or stop timer */ |
|
|
2133 | if (w->repeat) |
|
|
2134 | { |
1728 | ev_at (w) += w->repeat; |
2135 | ev_at (w) += w->repeat; |
1729 | if (ev_at (w) < mn_now) |
2136 | if (ev_at (w) < mn_now) |
1730 | ev_at (w) = mn_now; |
2137 | ev_at (w) = mn_now; |
1731 | |
2138 | |
1732 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2139 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1733 | |
2140 | |
1734 | ANHE_at_cache (timers [HEAP0]); |
2141 | ANHE_at_cache (timers [HEAP0]); |
1735 | downheap (timers, timercnt, HEAP0); |
2142 | downheap (timers, timercnt, HEAP0); |
|
|
2143 | } |
|
|
2144 | else |
|
|
2145 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2146 | |
|
|
2147 | EV_FREQUENT_CHECK; |
|
|
2148 | feed_reverse (EV_A_ (W)w); |
1736 | } |
2149 | } |
1737 | else |
2150 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1738 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1739 | |
2151 | |
1740 | EV_FREQUENT_CHECK; |
2152 | feed_reverse_done (EV_A_ EV_TIMER); |
1741 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1742 | } |
2153 | } |
1743 | } |
2154 | } |
1744 | |
2155 | |
1745 | #if EV_PERIODIC_ENABLE |
2156 | #if EV_PERIODIC_ENABLE |
1746 | void inline_size |
2157 | /* make periodics pending */ |
|
|
2158 | inline_size void |
1747 | periodics_reify (EV_P) |
2159 | periodics_reify (EV_P) |
1748 | { |
2160 | { |
1749 | EV_FREQUENT_CHECK; |
2161 | EV_FREQUENT_CHECK; |
1750 | |
2162 | |
1751 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2163 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1752 | { |
2164 | { |
1753 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2165 | int feed_count = 0; |
1754 | |
2166 | |
1755 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2167 | do |
1756 | |
|
|
1757 | /* first reschedule or stop timer */ |
|
|
1758 | if (w->reschedule_cb) |
|
|
1759 | { |
2168 | { |
|
|
2169 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2170 | |
|
|
2171 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2172 | |
|
|
2173 | /* first reschedule or stop timer */ |
|
|
2174 | if (w->reschedule_cb) |
|
|
2175 | { |
1760 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2176 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1761 | |
2177 | |
1762 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2178 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1763 | |
2179 | |
1764 | ANHE_at_cache (periodics [HEAP0]); |
2180 | ANHE_at_cache (periodics [HEAP0]); |
1765 | downheap (periodics, periodiccnt, HEAP0); |
2181 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2182 | } |
|
|
2183 | else if (w->interval) |
|
|
2184 | { |
|
|
2185 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2186 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2187 | /* this might happen because of floating point inexactness */ |
|
|
2188 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2189 | { |
|
|
2190 | ev_at (w) += w->interval; |
|
|
2191 | |
|
|
2192 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2193 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2194 | /* has effectively asked to get triggered more often than possible */ |
|
|
2195 | if (ev_at (w) < ev_rt_now) |
|
|
2196 | ev_at (w) = ev_rt_now; |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2200 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2201 | } |
|
|
2202 | else |
|
|
2203 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2204 | |
|
|
2205 | EV_FREQUENT_CHECK; |
|
|
2206 | feed_reverse (EV_A_ (W)w); |
1766 | } |
2207 | } |
1767 | else if (w->interval) |
2208 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1768 | { |
|
|
1769 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1770 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1771 | /* this might happen because of floating point inexactness */ |
|
|
1772 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1773 | { |
|
|
1774 | ev_at (w) += w->interval; |
|
|
1775 | |
2209 | |
1776 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1777 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1778 | /* has effectively asked to get triggered more often than possible */ |
|
|
1779 | if (ev_at (w) < ev_rt_now) |
|
|
1780 | ev_at (w) = ev_rt_now; |
|
|
1781 | } |
|
|
1782 | |
|
|
1783 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1784 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1785 | } |
|
|
1786 | else |
|
|
1787 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1788 | |
|
|
1789 | EV_FREQUENT_CHECK; |
|
|
1790 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2210 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1791 | } |
2211 | } |
1792 | } |
2212 | } |
1793 | |
2213 | |
|
|
2214 | /* simply recalculate all periodics */ |
|
|
2215 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1794 | static void noinline |
2216 | static void noinline |
1795 | periodics_reschedule (EV_P) |
2217 | periodics_reschedule (EV_P) |
1796 | { |
2218 | { |
1797 | int i; |
2219 | int i; |
1798 | |
2220 | |
… | |
… | |
1811 | |
2233 | |
1812 | reheap (periodics, periodiccnt); |
2234 | reheap (periodics, periodiccnt); |
1813 | } |
2235 | } |
1814 | #endif |
2236 | #endif |
1815 | |
2237 | |
1816 | void inline_speed |
2238 | /* adjust all timers by a given offset */ |
|
|
2239 | static void noinline |
|
|
2240 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2241 | { |
|
|
2242 | int i; |
|
|
2243 | |
|
|
2244 | for (i = 0; i < timercnt; ++i) |
|
|
2245 | { |
|
|
2246 | ANHE *he = timers + i + HEAP0; |
|
|
2247 | ANHE_w (*he)->at += adjust; |
|
|
2248 | ANHE_at_cache (*he); |
|
|
2249 | } |
|
|
2250 | } |
|
|
2251 | |
|
|
2252 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2253 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2254 | inline_speed void |
1817 | time_update (EV_P_ ev_tstamp max_block) |
2255 | time_update (EV_P_ ev_tstamp max_block) |
1818 | { |
2256 | { |
1819 | int i; |
|
|
1820 | |
|
|
1821 | #if EV_USE_MONOTONIC |
2257 | #if EV_USE_MONOTONIC |
1822 | if (expect_true (have_monotonic)) |
2258 | if (expect_true (have_monotonic)) |
1823 | { |
2259 | { |
|
|
2260 | int i; |
1824 | ev_tstamp odiff = rtmn_diff; |
2261 | ev_tstamp odiff = rtmn_diff; |
1825 | |
2262 | |
1826 | mn_now = get_clock (); |
2263 | mn_now = get_clock (); |
1827 | |
2264 | |
1828 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2265 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1854 | ev_rt_now = ev_time (); |
2291 | ev_rt_now = ev_time (); |
1855 | mn_now = get_clock (); |
2292 | mn_now = get_clock (); |
1856 | now_floor = mn_now; |
2293 | now_floor = mn_now; |
1857 | } |
2294 | } |
1858 | |
2295 | |
|
|
2296 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2297 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1859 | # if EV_PERIODIC_ENABLE |
2298 | # if EV_PERIODIC_ENABLE |
1860 | periodics_reschedule (EV_A); |
2299 | periodics_reschedule (EV_A); |
1861 | # endif |
2300 | # endif |
1862 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1863 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1864 | } |
2301 | } |
1865 | else |
2302 | else |
1866 | #endif |
2303 | #endif |
1867 | { |
2304 | { |
1868 | ev_rt_now = ev_time (); |
2305 | ev_rt_now = ev_time (); |
1869 | |
2306 | |
1870 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2307 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1871 | { |
2308 | { |
|
|
2309 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2310 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1872 | #if EV_PERIODIC_ENABLE |
2311 | #if EV_PERIODIC_ENABLE |
1873 | periodics_reschedule (EV_A); |
2312 | periodics_reschedule (EV_A); |
1874 | #endif |
2313 | #endif |
1875 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1876 | for (i = 0; i < timercnt; ++i) |
|
|
1877 | { |
|
|
1878 | ANHE *he = timers + i + HEAP0; |
|
|
1879 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1880 | ANHE_at_cache (*he); |
|
|
1881 | } |
|
|
1882 | } |
2314 | } |
1883 | |
2315 | |
1884 | mn_now = ev_rt_now; |
2316 | mn_now = ev_rt_now; |
1885 | } |
2317 | } |
1886 | } |
2318 | } |
1887 | |
2319 | |
1888 | void |
2320 | void |
1889 | ev_ref (EV_P) |
|
|
1890 | { |
|
|
1891 | ++activecnt; |
|
|
1892 | } |
|
|
1893 | |
|
|
1894 | void |
|
|
1895 | ev_unref (EV_P) |
|
|
1896 | { |
|
|
1897 | --activecnt; |
|
|
1898 | } |
|
|
1899 | |
|
|
1900 | void |
|
|
1901 | ev_now_update (EV_P) |
|
|
1902 | { |
|
|
1903 | time_update (EV_A_ 1e100); |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | static int loop_done; |
|
|
1907 | |
|
|
1908 | void |
|
|
1909 | ev_loop (EV_P_ int flags) |
2321 | ev_run (EV_P_ int flags) |
1910 | { |
2322 | { |
|
|
2323 | #if EV_FEATURE_API |
|
|
2324 | ++loop_depth; |
|
|
2325 | #endif |
|
|
2326 | |
|
|
2327 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2328 | |
1911 | loop_done = EVUNLOOP_CANCEL; |
2329 | loop_done = EVBREAK_CANCEL; |
1912 | |
2330 | |
1913 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2331 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1914 | |
2332 | |
1915 | do |
2333 | do |
1916 | { |
2334 | { |
1917 | #if EV_VERIFY >= 2 |
2335 | #if EV_VERIFY >= 2 |
1918 | ev_loop_verify (EV_A); |
2336 | ev_verify (EV_A); |
1919 | #endif |
2337 | #endif |
1920 | |
2338 | |
1921 | #ifndef _WIN32 |
2339 | #ifndef _WIN32 |
1922 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2340 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1923 | if (expect_false (getpid () != curpid)) |
2341 | if (expect_false (getpid () != curpid)) |
… | |
… | |
1931 | /* we might have forked, so queue fork handlers */ |
2349 | /* we might have forked, so queue fork handlers */ |
1932 | if (expect_false (postfork)) |
2350 | if (expect_false (postfork)) |
1933 | if (forkcnt) |
2351 | if (forkcnt) |
1934 | { |
2352 | { |
1935 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2353 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1936 | call_pending (EV_A); |
2354 | EV_INVOKE_PENDING; |
1937 | } |
2355 | } |
1938 | #endif |
2356 | #endif |
1939 | |
2357 | |
|
|
2358 | #if EV_PREPARE_ENABLE |
1940 | /* queue prepare watchers (and execute them) */ |
2359 | /* queue prepare watchers (and execute them) */ |
1941 | if (expect_false (preparecnt)) |
2360 | if (expect_false (preparecnt)) |
1942 | { |
2361 | { |
1943 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2362 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1944 | call_pending (EV_A); |
2363 | EV_INVOKE_PENDING; |
1945 | } |
2364 | } |
|
|
2365 | #endif |
1946 | |
2366 | |
1947 | if (expect_false (!activecnt)) |
2367 | if (expect_false (loop_done)) |
1948 | break; |
2368 | break; |
1949 | |
2369 | |
1950 | /* we might have forked, so reify kernel state if necessary */ |
2370 | /* we might have forked, so reify kernel state if necessary */ |
1951 | if (expect_false (postfork)) |
2371 | if (expect_false (postfork)) |
1952 | loop_fork (EV_A); |
2372 | loop_fork (EV_A); |
… | |
… | |
1957 | /* calculate blocking time */ |
2377 | /* calculate blocking time */ |
1958 | { |
2378 | { |
1959 | ev_tstamp waittime = 0.; |
2379 | ev_tstamp waittime = 0.; |
1960 | ev_tstamp sleeptime = 0.; |
2380 | ev_tstamp sleeptime = 0.; |
1961 | |
2381 | |
|
|
2382 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2383 | ev_tstamp prev_mn_now = mn_now; |
|
|
2384 | |
|
|
2385 | /* update time to cancel out callback processing overhead */ |
|
|
2386 | time_update (EV_A_ 1e100); |
|
|
2387 | |
1962 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2388 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
1963 | { |
2389 | { |
1964 | /* update time to cancel out callback processing overhead */ |
|
|
1965 | time_update (EV_A_ 1e100); |
|
|
1966 | |
|
|
1967 | waittime = MAX_BLOCKTIME; |
2390 | waittime = MAX_BLOCKTIME; |
1968 | |
2391 | |
1969 | if (timercnt) |
2392 | if (timercnt) |
1970 | { |
2393 | { |
1971 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2394 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
1978 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2401 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1979 | if (waittime > to) waittime = to; |
2402 | if (waittime > to) waittime = to; |
1980 | } |
2403 | } |
1981 | #endif |
2404 | #endif |
1982 | |
2405 | |
|
|
2406 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1983 | if (expect_false (waittime < timeout_blocktime)) |
2407 | if (expect_false (waittime < timeout_blocktime)) |
1984 | waittime = timeout_blocktime; |
2408 | waittime = timeout_blocktime; |
1985 | |
2409 | |
1986 | sleeptime = waittime - backend_fudge; |
2410 | /* extra check because io_blocktime is commonly 0 */ |
1987 | |
|
|
1988 | if (expect_true (sleeptime > io_blocktime)) |
2411 | if (expect_false (io_blocktime)) |
1989 | sleeptime = io_blocktime; |
|
|
1990 | |
|
|
1991 | if (sleeptime) |
|
|
1992 | { |
2412 | { |
|
|
2413 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2414 | |
|
|
2415 | if (sleeptime > waittime - backend_fudge) |
|
|
2416 | sleeptime = waittime - backend_fudge; |
|
|
2417 | |
|
|
2418 | if (expect_true (sleeptime > 0.)) |
|
|
2419 | { |
1993 | ev_sleep (sleeptime); |
2420 | ev_sleep (sleeptime); |
1994 | waittime -= sleeptime; |
2421 | waittime -= sleeptime; |
|
|
2422 | } |
1995 | } |
2423 | } |
1996 | } |
2424 | } |
1997 | |
2425 | |
|
|
2426 | #if EV_FEATURE_API |
1998 | ++loop_count; |
2427 | ++loop_count; |
|
|
2428 | #endif |
|
|
2429 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1999 | backend_poll (EV_A_ waittime); |
2430 | backend_poll (EV_A_ waittime); |
|
|
2431 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2000 | |
2432 | |
2001 | /* update ev_rt_now, do magic */ |
2433 | /* update ev_rt_now, do magic */ |
2002 | time_update (EV_A_ waittime + sleeptime); |
2434 | time_update (EV_A_ waittime + sleeptime); |
2003 | } |
2435 | } |
2004 | |
2436 | |
… | |
… | |
2011 | #if EV_IDLE_ENABLE |
2443 | #if EV_IDLE_ENABLE |
2012 | /* queue idle watchers unless other events are pending */ |
2444 | /* queue idle watchers unless other events are pending */ |
2013 | idle_reify (EV_A); |
2445 | idle_reify (EV_A); |
2014 | #endif |
2446 | #endif |
2015 | |
2447 | |
|
|
2448 | #if EV_CHECK_ENABLE |
2016 | /* queue check watchers, to be executed first */ |
2449 | /* queue check watchers, to be executed first */ |
2017 | if (expect_false (checkcnt)) |
2450 | if (expect_false (checkcnt)) |
2018 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2451 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2452 | #endif |
2019 | |
2453 | |
2020 | call_pending (EV_A); |
2454 | EV_INVOKE_PENDING; |
2021 | } |
2455 | } |
2022 | while (expect_true ( |
2456 | while (expect_true ( |
2023 | activecnt |
2457 | activecnt |
2024 | && !loop_done |
2458 | && !loop_done |
2025 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2459 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2026 | )); |
2460 | )); |
2027 | |
2461 | |
2028 | if (loop_done == EVUNLOOP_ONE) |
2462 | if (loop_done == EVBREAK_ONE) |
2029 | loop_done = EVUNLOOP_CANCEL; |
2463 | loop_done = EVBREAK_CANCEL; |
2030 | } |
|
|
2031 | |
2464 | |
|
|
2465 | #if EV_FEATURE_API |
|
|
2466 | --loop_depth; |
|
|
2467 | #endif |
|
|
2468 | } |
|
|
2469 | |
2032 | void |
2470 | void |
2033 | ev_unloop (EV_P_ int how) |
2471 | ev_break (EV_P_ int how) |
2034 | { |
2472 | { |
2035 | loop_done = how; |
2473 | loop_done = how; |
2036 | } |
2474 | } |
2037 | |
2475 | |
|
|
2476 | void |
|
|
2477 | ev_ref (EV_P) |
|
|
2478 | { |
|
|
2479 | ++activecnt; |
|
|
2480 | } |
|
|
2481 | |
|
|
2482 | void |
|
|
2483 | ev_unref (EV_P) |
|
|
2484 | { |
|
|
2485 | --activecnt; |
|
|
2486 | } |
|
|
2487 | |
|
|
2488 | void |
|
|
2489 | ev_now_update (EV_P) |
|
|
2490 | { |
|
|
2491 | time_update (EV_A_ 1e100); |
|
|
2492 | } |
|
|
2493 | |
|
|
2494 | void |
|
|
2495 | ev_suspend (EV_P) |
|
|
2496 | { |
|
|
2497 | ev_now_update (EV_A); |
|
|
2498 | } |
|
|
2499 | |
|
|
2500 | void |
|
|
2501 | ev_resume (EV_P) |
|
|
2502 | { |
|
|
2503 | ev_tstamp mn_prev = mn_now; |
|
|
2504 | |
|
|
2505 | ev_now_update (EV_A); |
|
|
2506 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2507 | #if EV_PERIODIC_ENABLE |
|
|
2508 | /* TODO: really do this? */ |
|
|
2509 | periodics_reschedule (EV_A); |
|
|
2510 | #endif |
|
|
2511 | } |
|
|
2512 | |
2038 | /*****************************************************************************/ |
2513 | /*****************************************************************************/ |
|
|
2514 | /* singly-linked list management, used when the expected list length is short */ |
2039 | |
2515 | |
2040 | void inline_size |
2516 | inline_size void |
2041 | wlist_add (WL *head, WL elem) |
2517 | wlist_add (WL *head, WL elem) |
2042 | { |
2518 | { |
2043 | elem->next = *head; |
2519 | elem->next = *head; |
2044 | *head = elem; |
2520 | *head = elem; |
2045 | } |
2521 | } |
2046 | |
2522 | |
2047 | void inline_size |
2523 | inline_size void |
2048 | wlist_del (WL *head, WL elem) |
2524 | wlist_del (WL *head, WL elem) |
2049 | { |
2525 | { |
2050 | while (*head) |
2526 | while (*head) |
2051 | { |
2527 | { |
2052 | if (*head == elem) |
2528 | if (expect_true (*head == elem)) |
2053 | { |
2529 | { |
2054 | *head = elem->next; |
2530 | *head = elem->next; |
2055 | return; |
2531 | break; |
2056 | } |
2532 | } |
2057 | |
2533 | |
2058 | head = &(*head)->next; |
2534 | head = &(*head)->next; |
2059 | } |
2535 | } |
2060 | } |
2536 | } |
2061 | |
2537 | |
2062 | void inline_speed |
2538 | /* internal, faster, version of ev_clear_pending */ |
|
|
2539 | inline_speed void |
2063 | clear_pending (EV_P_ W w) |
2540 | clear_pending (EV_P_ W w) |
2064 | { |
2541 | { |
2065 | if (w->pending) |
2542 | if (w->pending) |
2066 | { |
2543 | { |
2067 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2544 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2068 | w->pending = 0; |
2545 | w->pending = 0; |
2069 | } |
2546 | } |
2070 | } |
2547 | } |
2071 | |
2548 | |
2072 | int |
2549 | int |
… | |
… | |
2076 | int pending = w_->pending; |
2553 | int pending = w_->pending; |
2077 | |
2554 | |
2078 | if (expect_true (pending)) |
2555 | if (expect_true (pending)) |
2079 | { |
2556 | { |
2080 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2557 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2558 | p->w = (W)&pending_w; |
2081 | w_->pending = 0; |
2559 | w_->pending = 0; |
2082 | p->w = 0; |
|
|
2083 | return p->events; |
2560 | return p->events; |
2084 | } |
2561 | } |
2085 | else |
2562 | else |
2086 | return 0; |
2563 | return 0; |
2087 | } |
2564 | } |
2088 | |
2565 | |
2089 | void inline_size |
2566 | inline_size void |
2090 | pri_adjust (EV_P_ W w) |
2567 | pri_adjust (EV_P_ W w) |
2091 | { |
2568 | { |
2092 | int pri = w->priority; |
2569 | int pri = ev_priority (w); |
2093 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2570 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2094 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2571 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2095 | w->priority = pri; |
2572 | ev_set_priority (w, pri); |
2096 | } |
2573 | } |
2097 | |
2574 | |
2098 | void inline_speed |
2575 | inline_speed void |
2099 | ev_start (EV_P_ W w, int active) |
2576 | ev_start (EV_P_ W w, int active) |
2100 | { |
2577 | { |
2101 | pri_adjust (EV_A_ w); |
2578 | pri_adjust (EV_A_ w); |
2102 | w->active = active; |
2579 | w->active = active; |
2103 | ev_ref (EV_A); |
2580 | ev_ref (EV_A); |
2104 | } |
2581 | } |
2105 | |
2582 | |
2106 | void inline_size |
2583 | inline_size void |
2107 | ev_stop (EV_P_ W w) |
2584 | ev_stop (EV_P_ W w) |
2108 | { |
2585 | { |
2109 | ev_unref (EV_A); |
2586 | ev_unref (EV_A); |
2110 | w->active = 0; |
2587 | w->active = 0; |
2111 | } |
2588 | } |
… | |
… | |
2118 | int fd = w->fd; |
2595 | int fd = w->fd; |
2119 | |
2596 | |
2120 | if (expect_false (ev_is_active (w))) |
2597 | if (expect_false (ev_is_active (w))) |
2121 | return; |
2598 | return; |
2122 | |
2599 | |
2123 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2600 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2124 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2601 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2125 | |
2602 | |
2126 | EV_FREQUENT_CHECK; |
2603 | EV_FREQUENT_CHECK; |
2127 | |
2604 | |
2128 | ev_start (EV_A_ (W)w, 1); |
2605 | ev_start (EV_A_ (W)w, 1); |
2129 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2606 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2130 | wlist_add (&anfds[fd].head, (WL)w); |
2607 | wlist_add (&anfds[fd].head, (WL)w); |
2131 | |
2608 | |
2132 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2609 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2133 | w->events &= ~EV_IOFDSET; |
2610 | w->events &= ~EV__IOFDSET; |
2134 | |
2611 | |
2135 | EV_FREQUENT_CHECK; |
2612 | EV_FREQUENT_CHECK; |
2136 | } |
2613 | } |
2137 | |
2614 | |
2138 | void noinline |
2615 | void noinline |
… | |
… | |
2140 | { |
2617 | { |
2141 | clear_pending (EV_A_ (W)w); |
2618 | clear_pending (EV_A_ (W)w); |
2142 | if (expect_false (!ev_is_active (w))) |
2619 | if (expect_false (!ev_is_active (w))) |
2143 | return; |
2620 | return; |
2144 | |
2621 | |
2145 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2622 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2146 | |
2623 | |
2147 | EV_FREQUENT_CHECK; |
2624 | EV_FREQUENT_CHECK; |
2148 | |
2625 | |
2149 | wlist_del (&anfds[w->fd].head, (WL)w); |
2626 | wlist_del (&anfds[w->fd].head, (WL)w); |
2150 | ev_stop (EV_A_ (W)w); |
2627 | ev_stop (EV_A_ (W)w); |
2151 | |
2628 | |
2152 | fd_change (EV_A_ w->fd, 1); |
2629 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2153 | |
2630 | |
2154 | EV_FREQUENT_CHECK; |
2631 | EV_FREQUENT_CHECK; |
2155 | } |
2632 | } |
2156 | |
2633 | |
2157 | void noinline |
2634 | void noinline |
… | |
… | |
2160 | if (expect_false (ev_is_active (w))) |
2637 | if (expect_false (ev_is_active (w))) |
2161 | return; |
2638 | return; |
2162 | |
2639 | |
2163 | ev_at (w) += mn_now; |
2640 | ev_at (w) += mn_now; |
2164 | |
2641 | |
2165 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2642 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2166 | |
2643 | |
2167 | EV_FREQUENT_CHECK; |
2644 | EV_FREQUENT_CHECK; |
2168 | |
2645 | |
2169 | ++timercnt; |
2646 | ++timercnt; |
2170 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2647 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2173 | ANHE_at_cache (timers [ev_active (w)]); |
2650 | ANHE_at_cache (timers [ev_active (w)]); |
2174 | upheap (timers, ev_active (w)); |
2651 | upheap (timers, ev_active (w)); |
2175 | |
2652 | |
2176 | EV_FREQUENT_CHECK; |
2653 | EV_FREQUENT_CHECK; |
2177 | |
2654 | |
2178 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2655 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2179 | } |
2656 | } |
2180 | |
2657 | |
2181 | void noinline |
2658 | void noinline |
2182 | ev_timer_stop (EV_P_ ev_timer *w) |
2659 | ev_timer_stop (EV_P_ ev_timer *w) |
2183 | { |
2660 | { |
… | |
… | |
2188 | EV_FREQUENT_CHECK; |
2665 | EV_FREQUENT_CHECK; |
2189 | |
2666 | |
2190 | { |
2667 | { |
2191 | int active = ev_active (w); |
2668 | int active = ev_active (w); |
2192 | |
2669 | |
2193 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2670 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2194 | |
2671 | |
2195 | --timercnt; |
2672 | --timercnt; |
2196 | |
2673 | |
2197 | if (expect_true (active < timercnt + HEAP0)) |
2674 | if (expect_true (active < timercnt + HEAP0)) |
2198 | { |
2675 | { |
2199 | timers [active] = timers [timercnt + HEAP0]; |
2676 | timers [active] = timers [timercnt + HEAP0]; |
2200 | adjustheap (timers, timercnt, active); |
2677 | adjustheap (timers, timercnt, active); |
2201 | } |
2678 | } |
2202 | } |
2679 | } |
2203 | |
2680 | |
2204 | EV_FREQUENT_CHECK; |
|
|
2205 | |
|
|
2206 | ev_at (w) -= mn_now; |
2681 | ev_at (w) -= mn_now; |
2207 | |
2682 | |
2208 | ev_stop (EV_A_ (W)w); |
2683 | ev_stop (EV_A_ (W)w); |
|
|
2684 | |
|
|
2685 | EV_FREQUENT_CHECK; |
2209 | } |
2686 | } |
2210 | |
2687 | |
2211 | void noinline |
2688 | void noinline |
2212 | ev_timer_again (EV_P_ ev_timer *w) |
2689 | ev_timer_again (EV_P_ ev_timer *w) |
2213 | { |
2690 | { |
… | |
… | |
2231 | } |
2708 | } |
2232 | |
2709 | |
2233 | EV_FREQUENT_CHECK; |
2710 | EV_FREQUENT_CHECK; |
2234 | } |
2711 | } |
2235 | |
2712 | |
|
|
2713 | ev_tstamp |
|
|
2714 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2715 | { |
|
|
2716 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2717 | } |
|
|
2718 | |
2236 | #if EV_PERIODIC_ENABLE |
2719 | #if EV_PERIODIC_ENABLE |
2237 | void noinline |
2720 | void noinline |
2238 | ev_periodic_start (EV_P_ ev_periodic *w) |
2721 | ev_periodic_start (EV_P_ ev_periodic *w) |
2239 | { |
2722 | { |
2240 | if (expect_false (ev_is_active (w))) |
2723 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2242 | |
2725 | |
2243 | if (w->reschedule_cb) |
2726 | if (w->reschedule_cb) |
2244 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2727 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2245 | else if (w->interval) |
2728 | else if (w->interval) |
2246 | { |
2729 | { |
2247 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2730 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2248 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2731 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2249 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2732 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2250 | } |
2733 | } |
2251 | else |
2734 | else |
2252 | ev_at (w) = w->offset; |
2735 | ev_at (w) = w->offset; |
… | |
… | |
2260 | ANHE_at_cache (periodics [ev_active (w)]); |
2743 | ANHE_at_cache (periodics [ev_active (w)]); |
2261 | upheap (periodics, ev_active (w)); |
2744 | upheap (periodics, ev_active (w)); |
2262 | |
2745 | |
2263 | EV_FREQUENT_CHECK; |
2746 | EV_FREQUENT_CHECK; |
2264 | |
2747 | |
2265 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2748 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2266 | } |
2749 | } |
2267 | |
2750 | |
2268 | void noinline |
2751 | void noinline |
2269 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2752 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2270 | { |
2753 | { |
… | |
… | |
2275 | EV_FREQUENT_CHECK; |
2758 | EV_FREQUENT_CHECK; |
2276 | |
2759 | |
2277 | { |
2760 | { |
2278 | int active = ev_active (w); |
2761 | int active = ev_active (w); |
2279 | |
2762 | |
2280 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2763 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2281 | |
2764 | |
2282 | --periodiccnt; |
2765 | --periodiccnt; |
2283 | |
2766 | |
2284 | if (expect_true (active < periodiccnt + HEAP0)) |
2767 | if (expect_true (active < periodiccnt + HEAP0)) |
2285 | { |
2768 | { |
2286 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2769 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2287 | adjustheap (periodics, periodiccnt, active); |
2770 | adjustheap (periodics, periodiccnt, active); |
2288 | } |
2771 | } |
2289 | } |
2772 | } |
2290 | |
2773 | |
2291 | EV_FREQUENT_CHECK; |
|
|
2292 | |
|
|
2293 | ev_stop (EV_A_ (W)w); |
2774 | ev_stop (EV_A_ (W)w); |
|
|
2775 | |
|
|
2776 | EV_FREQUENT_CHECK; |
2294 | } |
2777 | } |
2295 | |
2778 | |
2296 | void noinline |
2779 | void noinline |
2297 | ev_periodic_again (EV_P_ ev_periodic *w) |
2780 | ev_periodic_again (EV_P_ ev_periodic *w) |
2298 | { |
2781 | { |
… | |
… | |
2304 | |
2787 | |
2305 | #ifndef SA_RESTART |
2788 | #ifndef SA_RESTART |
2306 | # define SA_RESTART 0 |
2789 | # define SA_RESTART 0 |
2307 | #endif |
2790 | #endif |
2308 | |
2791 | |
|
|
2792 | #if EV_SIGNAL_ENABLE |
|
|
2793 | |
2309 | void noinline |
2794 | void noinline |
2310 | ev_signal_start (EV_P_ ev_signal *w) |
2795 | ev_signal_start (EV_P_ ev_signal *w) |
2311 | { |
2796 | { |
2312 | #if EV_MULTIPLICITY |
|
|
2313 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2314 | #endif |
|
|
2315 | if (expect_false (ev_is_active (w))) |
2797 | if (expect_false (ev_is_active (w))) |
2316 | return; |
2798 | return; |
2317 | |
2799 | |
2318 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2800 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2319 | |
2801 | |
2320 | evpipe_init (EV_A); |
2802 | #if EV_MULTIPLICITY |
|
|
2803 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2804 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2321 | |
2805 | |
2322 | EV_FREQUENT_CHECK; |
2806 | signals [w->signum - 1].loop = EV_A; |
|
|
2807 | #endif |
2323 | |
2808 | |
|
|
2809 | EV_FREQUENT_CHECK; |
|
|
2810 | |
|
|
2811 | #if EV_USE_SIGNALFD |
|
|
2812 | if (sigfd == -2) |
2324 | { |
2813 | { |
2325 | #ifndef _WIN32 |
2814 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2326 | sigset_t full, prev; |
2815 | if (sigfd < 0 && errno == EINVAL) |
2327 | sigfillset (&full); |
2816 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2328 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2329 | #endif |
|
|
2330 | |
2817 | |
2331 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2818 | if (sigfd >= 0) |
|
|
2819 | { |
|
|
2820 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2332 | |
2821 | |
2333 | #ifndef _WIN32 |
2822 | sigemptyset (&sigfd_set); |
2334 | sigprocmask (SIG_SETMASK, &prev, 0); |
2823 | |
2335 | #endif |
2824 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2825 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2826 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2827 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2828 | } |
2336 | } |
2829 | } |
|
|
2830 | |
|
|
2831 | if (sigfd >= 0) |
|
|
2832 | { |
|
|
2833 | /* TODO: check .head */ |
|
|
2834 | sigaddset (&sigfd_set, w->signum); |
|
|
2835 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2836 | |
|
|
2837 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2838 | } |
|
|
2839 | #endif |
2337 | |
2840 | |
2338 | ev_start (EV_A_ (W)w, 1); |
2841 | ev_start (EV_A_ (W)w, 1); |
2339 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2842 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2340 | |
2843 | |
2341 | if (!((WL)w)->next) |
2844 | if (!((WL)w)->next) |
|
|
2845 | # if EV_USE_SIGNALFD |
|
|
2846 | if (sigfd < 0) /*TODO*/ |
|
|
2847 | # endif |
2342 | { |
2848 | { |
2343 | #if _WIN32 |
2849 | # ifdef _WIN32 |
|
|
2850 | evpipe_init (EV_A); |
|
|
2851 | |
2344 | signal (w->signum, ev_sighandler); |
2852 | signal (w->signum, ev_sighandler); |
2345 | #else |
2853 | # else |
2346 | struct sigaction sa; |
2854 | struct sigaction sa; |
|
|
2855 | |
|
|
2856 | evpipe_init (EV_A); |
|
|
2857 | |
2347 | sa.sa_handler = ev_sighandler; |
2858 | sa.sa_handler = ev_sighandler; |
2348 | sigfillset (&sa.sa_mask); |
2859 | sigfillset (&sa.sa_mask); |
2349 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2860 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2350 | sigaction (w->signum, &sa, 0); |
2861 | sigaction (w->signum, &sa, 0); |
|
|
2862 | |
|
|
2863 | sigemptyset (&sa.sa_mask); |
|
|
2864 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2865 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2351 | #endif |
2866 | #endif |
2352 | } |
2867 | } |
2353 | |
2868 | |
2354 | EV_FREQUENT_CHECK; |
2869 | EV_FREQUENT_CHECK; |
2355 | } |
2870 | } |
2356 | |
2871 | |
2357 | void noinline |
2872 | void noinline |
… | |
… | |
2365 | |
2880 | |
2366 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2881 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2367 | ev_stop (EV_A_ (W)w); |
2882 | ev_stop (EV_A_ (W)w); |
2368 | |
2883 | |
2369 | if (!signals [w->signum - 1].head) |
2884 | if (!signals [w->signum - 1].head) |
|
|
2885 | { |
|
|
2886 | #if EV_MULTIPLICITY |
|
|
2887 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2888 | #endif |
|
|
2889 | #if EV_USE_SIGNALFD |
|
|
2890 | if (sigfd >= 0) |
|
|
2891 | { |
|
|
2892 | sigset_t ss; |
|
|
2893 | |
|
|
2894 | sigemptyset (&ss); |
|
|
2895 | sigaddset (&ss, w->signum); |
|
|
2896 | sigdelset (&sigfd_set, w->signum); |
|
|
2897 | |
|
|
2898 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2899 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2900 | } |
|
|
2901 | else |
|
|
2902 | #endif |
2370 | signal (w->signum, SIG_DFL); |
2903 | signal (w->signum, SIG_DFL); |
|
|
2904 | } |
2371 | |
2905 | |
2372 | EV_FREQUENT_CHECK; |
2906 | EV_FREQUENT_CHECK; |
2373 | } |
2907 | } |
|
|
2908 | |
|
|
2909 | #endif |
|
|
2910 | |
|
|
2911 | #if EV_CHILD_ENABLE |
2374 | |
2912 | |
2375 | void |
2913 | void |
2376 | ev_child_start (EV_P_ ev_child *w) |
2914 | ev_child_start (EV_P_ ev_child *w) |
2377 | { |
2915 | { |
2378 | #if EV_MULTIPLICITY |
2916 | #if EV_MULTIPLICITY |
2379 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2917 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2380 | #endif |
2918 | #endif |
2381 | if (expect_false (ev_is_active (w))) |
2919 | if (expect_false (ev_is_active (w))) |
2382 | return; |
2920 | return; |
2383 | |
2921 | |
2384 | EV_FREQUENT_CHECK; |
2922 | EV_FREQUENT_CHECK; |
2385 | |
2923 | |
2386 | ev_start (EV_A_ (W)w, 1); |
2924 | ev_start (EV_A_ (W)w, 1); |
2387 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2925 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2388 | |
2926 | |
2389 | EV_FREQUENT_CHECK; |
2927 | EV_FREQUENT_CHECK; |
2390 | } |
2928 | } |
2391 | |
2929 | |
2392 | void |
2930 | void |
… | |
… | |
2396 | if (expect_false (!ev_is_active (w))) |
2934 | if (expect_false (!ev_is_active (w))) |
2397 | return; |
2935 | return; |
2398 | |
2936 | |
2399 | EV_FREQUENT_CHECK; |
2937 | EV_FREQUENT_CHECK; |
2400 | |
2938 | |
2401 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2939 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2402 | ev_stop (EV_A_ (W)w); |
2940 | ev_stop (EV_A_ (W)w); |
2403 | |
2941 | |
2404 | EV_FREQUENT_CHECK; |
2942 | EV_FREQUENT_CHECK; |
2405 | } |
2943 | } |
|
|
2944 | |
|
|
2945 | #endif |
2406 | |
2946 | |
2407 | #if EV_STAT_ENABLE |
2947 | #if EV_STAT_ENABLE |
2408 | |
2948 | |
2409 | # ifdef _WIN32 |
2949 | # ifdef _WIN32 |
2410 | # undef lstat |
2950 | # undef lstat |
2411 | # define lstat(a,b) _stati64 (a,b) |
2951 | # define lstat(a,b) _stati64 (a,b) |
2412 | # endif |
2952 | # endif |
2413 | |
2953 | |
2414 | #define DEF_STAT_INTERVAL 5.0074891 |
2954 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2955 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2415 | #define MIN_STAT_INTERVAL 0.1074891 |
2956 | #define MIN_STAT_INTERVAL 0.1074891 |
2416 | |
2957 | |
2417 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2958 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2418 | |
2959 | |
2419 | #if EV_USE_INOTIFY |
2960 | #if EV_USE_INOTIFY |
2420 | # define EV_INOTIFY_BUFSIZE 8192 |
2961 | |
|
|
2962 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2963 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2421 | |
2964 | |
2422 | static void noinline |
2965 | static void noinline |
2423 | infy_add (EV_P_ ev_stat *w) |
2966 | infy_add (EV_P_ ev_stat *w) |
2424 | { |
2967 | { |
2425 | 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); |
2968 | 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); |
2426 | |
2969 | |
2427 | if (w->wd < 0) |
2970 | if (w->wd >= 0) |
|
|
2971 | { |
|
|
2972 | struct statfs sfs; |
|
|
2973 | |
|
|
2974 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2975 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2976 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2977 | |
|
|
2978 | if (!fs_2625) |
|
|
2979 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2980 | else if (!statfs (w->path, &sfs) |
|
|
2981 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2982 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2983 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2984 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2985 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2986 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2987 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2988 | else |
|
|
2989 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2428 | { |
2990 | } |
2429 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2991 | else |
|
|
2992 | { |
|
|
2993 | /* can't use inotify, continue to stat */ |
|
|
2994 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2430 | |
2995 | |
2431 | /* monitor some parent directory for speedup hints */ |
2996 | /* if path is not there, monitor some parent directory for speedup hints */ |
2432 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2997 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2433 | /* but an efficiency issue only */ |
2998 | /* but an efficiency issue only */ |
2434 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2999 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2435 | { |
3000 | { |
2436 | char path [4096]; |
3001 | char path [4096]; |
2437 | strcpy (path, w->path); |
3002 | strcpy (path, w->path); |
… | |
… | |
2441 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3006 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2442 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3007 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2443 | |
3008 | |
2444 | char *pend = strrchr (path, '/'); |
3009 | char *pend = strrchr (path, '/'); |
2445 | |
3010 | |
2446 | if (!pend) |
3011 | if (!pend || pend == path) |
2447 | break; /* whoops, no '/', complain to your admin */ |
3012 | break; |
2448 | |
3013 | |
2449 | *pend = 0; |
3014 | *pend = 0; |
2450 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3015 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2451 | } |
3016 | } |
2452 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3017 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2453 | } |
3018 | } |
2454 | } |
3019 | } |
2455 | else |
|
|
2456 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2457 | |
3020 | |
2458 | if (w->wd >= 0) |
3021 | if (w->wd >= 0) |
2459 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3022 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3023 | |
|
|
3024 | /* now re-arm timer, if required */ |
|
|
3025 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3026 | ev_timer_again (EV_A_ &w->timer); |
|
|
3027 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2460 | } |
3028 | } |
2461 | |
3029 | |
2462 | static void noinline |
3030 | static void noinline |
2463 | infy_del (EV_P_ ev_stat *w) |
3031 | infy_del (EV_P_ ev_stat *w) |
2464 | { |
3032 | { |
… | |
… | |
2467 | |
3035 | |
2468 | if (wd < 0) |
3036 | if (wd < 0) |
2469 | return; |
3037 | return; |
2470 | |
3038 | |
2471 | w->wd = -2; |
3039 | w->wd = -2; |
2472 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3040 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2473 | wlist_del (&fs_hash [slot].head, (WL)w); |
3041 | wlist_del (&fs_hash [slot].head, (WL)w); |
2474 | |
3042 | |
2475 | /* remove this watcher, if others are watching it, they will rearm */ |
3043 | /* remove this watcher, if others are watching it, they will rearm */ |
2476 | inotify_rm_watch (fs_fd, wd); |
3044 | inotify_rm_watch (fs_fd, wd); |
2477 | } |
3045 | } |
… | |
… | |
2479 | static void noinline |
3047 | static void noinline |
2480 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3048 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2481 | { |
3049 | { |
2482 | if (slot < 0) |
3050 | if (slot < 0) |
2483 | /* overflow, need to check for all hash slots */ |
3051 | /* overflow, need to check for all hash slots */ |
2484 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3052 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2485 | infy_wd (EV_A_ slot, wd, ev); |
3053 | infy_wd (EV_A_ slot, wd, ev); |
2486 | else |
3054 | else |
2487 | { |
3055 | { |
2488 | WL w_; |
3056 | WL w_; |
2489 | |
3057 | |
2490 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3058 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2491 | { |
3059 | { |
2492 | ev_stat *w = (ev_stat *)w_; |
3060 | ev_stat *w = (ev_stat *)w_; |
2493 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3061 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2494 | |
3062 | |
2495 | if (w->wd == wd || wd == -1) |
3063 | if (w->wd == wd || wd == -1) |
2496 | { |
3064 | { |
2497 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3065 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2498 | { |
3066 | { |
|
|
3067 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2499 | w->wd = -1; |
3068 | w->wd = -1; |
2500 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3069 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2501 | } |
3070 | } |
2502 | |
3071 | |
2503 | stat_timer_cb (EV_A_ &w->timer, 0); |
3072 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2508 | |
3077 | |
2509 | static void |
3078 | static void |
2510 | infy_cb (EV_P_ ev_io *w, int revents) |
3079 | infy_cb (EV_P_ ev_io *w, int revents) |
2511 | { |
3080 | { |
2512 | char buf [EV_INOTIFY_BUFSIZE]; |
3081 | char buf [EV_INOTIFY_BUFSIZE]; |
2513 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2514 | int ofs; |
3082 | int ofs; |
2515 | int len = read (fs_fd, buf, sizeof (buf)); |
3083 | int len = read (fs_fd, buf, sizeof (buf)); |
2516 | |
3084 | |
2517 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3085 | for (ofs = 0; ofs < len; ) |
|
|
3086 | { |
|
|
3087 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2518 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3088 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3089 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3090 | } |
2519 | } |
3091 | } |
2520 | |
3092 | |
2521 | void inline_size |
3093 | inline_size void |
2522 | infy_init (EV_P) |
3094 | ev_check_2625 (EV_P) |
2523 | { |
3095 | { |
2524 | if (fs_fd != -2) |
|
|
2525 | return; |
|
|
2526 | |
|
|
2527 | /* kernels < 2.6.25 are borked |
3096 | /* kernels < 2.6.25 are borked |
2528 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3097 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2529 | */ |
3098 | */ |
2530 | { |
3099 | if (ev_linux_version () < 0x020619) |
2531 | struct utsname buf; |
3100 | return; |
2532 | int major, minor, micro; |
|
|
2533 | |
3101 | |
|
|
3102 | fs_2625 = 1; |
|
|
3103 | } |
|
|
3104 | |
|
|
3105 | inline_size int |
|
|
3106 | infy_newfd (void) |
|
|
3107 | { |
|
|
3108 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3109 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3110 | if (fd >= 0) |
|
|
3111 | return fd; |
|
|
3112 | #endif |
|
|
3113 | return inotify_init (); |
|
|
3114 | } |
|
|
3115 | |
|
|
3116 | inline_size void |
|
|
3117 | infy_init (EV_P) |
|
|
3118 | { |
|
|
3119 | if (fs_fd != -2) |
|
|
3120 | return; |
|
|
3121 | |
2534 | fs_fd = -1; |
3122 | fs_fd = -1; |
2535 | |
3123 | |
2536 | if (uname (&buf)) |
3124 | ev_check_2625 (EV_A); |
2537 | return; |
|
|
2538 | |
3125 | |
2539 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2540 | return; |
|
|
2541 | |
|
|
2542 | if (major < 2 |
|
|
2543 | || (major == 2 && minor < 6) |
|
|
2544 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2545 | return; |
|
|
2546 | } |
|
|
2547 | |
|
|
2548 | fs_fd = inotify_init (); |
3126 | fs_fd = infy_newfd (); |
2549 | |
3127 | |
2550 | if (fs_fd >= 0) |
3128 | if (fs_fd >= 0) |
2551 | { |
3129 | { |
|
|
3130 | fd_intern (fs_fd); |
2552 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3131 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2553 | ev_set_priority (&fs_w, EV_MAXPRI); |
3132 | ev_set_priority (&fs_w, EV_MAXPRI); |
2554 | ev_io_start (EV_A_ &fs_w); |
3133 | ev_io_start (EV_A_ &fs_w); |
|
|
3134 | ev_unref (EV_A); |
2555 | } |
3135 | } |
2556 | } |
3136 | } |
2557 | |
3137 | |
2558 | void inline_size |
3138 | inline_size void |
2559 | infy_fork (EV_P) |
3139 | infy_fork (EV_P) |
2560 | { |
3140 | { |
2561 | int slot; |
3141 | int slot; |
2562 | |
3142 | |
2563 | if (fs_fd < 0) |
3143 | if (fs_fd < 0) |
2564 | return; |
3144 | return; |
2565 | |
3145 | |
|
|
3146 | ev_ref (EV_A); |
|
|
3147 | ev_io_stop (EV_A_ &fs_w); |
2566 | close (fs_fd); |
3148 | close (fs_fd); |
2567 | fs_fd = inotify_init (); |
3149 | fs_fd = infy_newfd (); |
2568 | |
3150 | |
|
|
3151 | if (fs_fd >= 0) |
|
|
3152 | { |
|
|
3153 | fd_intern (fs_fd); |
|
|
3154 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3155 | ev_io_start (EV_A_ &fs_w); |
|
|
3156 | ev_unref (EV_A); |
|
|
3157 | } |
|
|
3158 | |
2569 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3159 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2570 | { |
3160 | { |
2571 | WL w_ = fs_hash [slot].head; |
3161 | WL w_ = fs_hash [slot].head; |
2572 | fs_hash [slot].head = 0; |
3162 | fs_hash [slot].head = 0; |
2573 | |
3163 | |
2574 | while (w_) |
3164 | while (w_) |
… | |
… | |
2579 | w->wd = -1; |
3169 | w->wd = -1; |
2580 | |
3170 | |
2581 | if (fs_fd >= 0) |
3171 | if (fs_fd >= 0) |
2582 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3172 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2583 | else |
3173 | else |
|
|
3174 | { |
|
|
3175 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3176 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2584 | ev_timer_start (EV_A_ &w->timer); |
3177 | ev_timer_again (EV_A_ &w->timer); |
|
|
3178 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3179 | } |
2585 | } |
3180 | } |
2586 | } |
3181 | } |
2587 | } |
3182 | } |
2588 | |
3183 | |
2589 | #endif |
3184 | #endif |
… | |
… | |
2606 | static void noinline |
3201 | static void noinline |
2607 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3202 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2608 | { |
3203 | { |
2609 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3204 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2610 | |
3205 | |
2611 | /* we copy this here each the time so that */ |
3206 | ev_statdata prev = w->attr; |
2612 | /* prev has the old value when the callback gets invoked */ |
|
|
2613 | w->prev = w->attr; |
|
|
2614 | ev_stat_stat (EV_A_ w); |
3207 | ev_stat_stat (EV_A_ w); |
2615 | |
3208 | |
2616 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3209 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2617 | if ( |
3210 | if ( |
2618 | w->prev.st_dev != w->attr.st_dev |
3211 | prev.st_dev != w->attr.st_dev |
2619 | || w->prev.st_ino != w->attr.st_ino |
3212 | || prev.st_ino != w->attr.st_ino |
2620 | || w->prev.st_mode != w->attr.st_mode |
3213 | || prev.st_mode != w->attr.st_mode |
2621 | || w->prev.st_nlink != w->attr.st_nlink |
3214 | || prev.st_nlink != w->attr.st_nlink |
2622 | || w->prev.st_uid != w->attr.st_uid |
3215 | || prev.st_uid != w->attr.st_uid |
2623 | || w->prev.st_gid != w->attr.st_gid |
3216 | || prev.st_gid != w->attr.st_gid |
2624 | || w->prev.st_rdev != w->attr.st_rdev |
3217 | || prev.st_rdev != w->attr.st_rdev |
2625 | || w->prev.st_size != w->attr.st_size |
3218 | || prev.st_size != w->attr.st_size |
2626 | || w->prev.st_atime != w->attr.st_atime |
3219 | || prev.st_atime != w->attr.st_atime |
2627 | || w->prev.st_mtime != w->attr.st_mtime |
3220 | || prev.st_mtime != w->attr.st_mtime |
2628 | || w->prev.st_ctime != w->attr.st_ctime |
3221 | || prev.st_ctime != w->attr.st_ctime |
2629 | ) { |
3222 | ) { |
|
|
3223 | /* we only update w->prev on actual differences */ |
|
|
3224 | /* in case we test more often than invoke the callback, */ |
|
|
3225 | /* to ensure that prev is always different to attr */ |
|
|
3226 | w->prev = prev; |
|
|
3227 | |
2630 | #if EV_USE_INOTIFY |
3228 | #if EV_USE_INOTIFY |
2631 | if (fs_fd >= 0) |
3229 | if (fs_fd >= 0) |
2632 | { |
3230 | { |
2633 | infy_del (EV_A_ w); |
3231 | infy_del (EV_A_ w); |
2634 | infy_add (EV_A_ w); |
3232 | infy_add (EV_A_ w); |
… | |
… | |
2644 | ev_stat_start (EV_P_ ev_stat *w) |
3242 | ev_stat_start (EV_P_ ev_stat *w) |
2645 | { |
3243 | { |
2646 | if (expect_false (ev_is_active (w))) |
3244 | if (expect_false (ev_is_active (w))) |
2647 | return; |
3245 | return; |
2648 | |
3246 | |
2649 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2650 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2651 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2652 | |
|
|
2653 | ev_stat_stat (EV_A_ w); |
3247 | ev_stat_stat (EV_A_ w); |
2654 | |
3248 | |
|
|
3249 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2655 | if (w->interval < MIN_STAT_INTERVAL) |
3250 | w->interval = MIN_STAT_INTERVAL; |
2656 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2657 | |
3251 | |
2658 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3252 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2659 | ev_set_priority (&w->timer, ev_priority (w)); |
3253 | ev_set_priority (&w->timer, ev_priority (w)); |
2660 | |
3254 | |
2661 | #if EV_USE_INOTIFY |
3255 | #if EV_USE_INOTIFY |
2662 | infy_init (EV_A); |
3256 | infy_init (EV_A); |
2663 | |
3257 | |
2664 | if (fs_fd >= 0) |
3258 | if (fs_fd >= 0) |
2665 | infy_add (EV_A_ w); |
3259 | infy_add (EV_A_ w); |
2666 | else |
3260 | else |
2667 | #endif |
3261 | #endif |
|
|
3262 | { |
2668 | ev_timer_start (EV_A_ &w->timer); |
3263 | ev_timer_again (EV_A_ &w->timer); |
|
|
3264 | ev_unref (EV_A); |
|
|
3265 | } |
2669 | |
3266 | |
2670 | ev_start (EV_A_ (W)w, 1); |
3267 | ev_start (EV_A_ (W)w, 1); |
2671 | |
3268 | |
2672 | EV_FREQUENT_CHECK; |
3269 | EV_FREQUENT_CHECK; |
2673 | } |
3270 | } |
… | |
… | |
2682 | EV_FREQUENT_CHECK; |
3279 | EV_FREQUENT_CHECK; |
2683 | |
3280 | |
2684 | #if EV_USE_INOTIFY |
3281 | #if EV_USE_INOTIFY |
2685 | infy_del (EV_A_ w); |
3282 | infy_del (EV_A_ w); |
2686 | #endif |
3283 | #endif |
|
|
3284 | |
|
|
3285 | if (ev_is_active (&w->timer)) |
|
|
3286 | { |
|
|
3287 | ev_ref (EV_A); |
2687 | ev_timer_stop (EV_A_ &w->timer); |
3288 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3289 | } |
2688 | |
3290 | |
2689 | ev_stop (EV_A_ (W)w); |
3291 | ev_stop (EV_A_ (W)w); |
2690 | |
3292 | |
2691 | EV_FREQUENT_CHECK; |
3293 | EV_FREQUENT_CHECK; |
2692 | } |
3294 | } |
… | |
… | |
2737 | |
3339 | |
2738 | EV_FREQUENT_CHECK; |
3340 | EV_FREQUENT_CHECK; |
2739 | } |
3341 | } |
2740 | #endif |
3342 | #endif |
2741 | |
3343 | |
|
|
3344 | #if EV_PREPARE_ENABLE |
2742 | void |
3345 | void |
2743 | ev_prepare_start (EV_P_ ev_prepare *w) |
3346 | ev_prepare_start (EV_P_ ev_prepare *w) |
2744 | { |
3347 | { |
2745 | if (expect_false (ev_is_active (w))) |
3348 | if (expect_false (ev_is_active (w))) |
2746 | return; |
3349 | return; |
… | |
… | |
2772 | |
3375 | |
2773 | ev_stop (EV_A_ (W)w); |
3376 | ev_stop (EV_A_ (W)w); |
2774 | |
3377 | |
2775 | EV_FREQUENT_CHECK; |
3378 | EV_FREQUENT_CHECK; |
2776 | } |
3379 | } |
|
|
3380 | #endif |
2777 | |
3381 | |
|
|
3382 | #if EV_CHECK_ENABLE |
2778 | void |
3383 | void |
2779 | ev_check_start (EV_P_ ev_check *w) |
3384 | ev_check_start (EV_P_ ev_check *w) |
2780 | { |
3385 | { |
2781 | if (expect_false (ev_is_active (w))) |
3386 | if (expect_false (ev_is_active (w))) |
2782 | return; |
3387 | return; |
… | |
… | |
2808 | |
3413 | |
2809 | ev_stop (EV_A_ (W)w); |
3414 | ev_stop (EV_A_ (W)w); |
2810 | |
3415 | |
2811 | EV_FREQUENT_CHECK; |
3416 | EV_FREQUENT_CHECK; |
2812 | } |
3417 | } |
|
|
3418 | #endif |
2813 | |
3419 | |
2814 | #if EV_EMBED_ENABLE |
3420 | #if EV_EMBED_ENABLE |
2815 | void noinline |
3421 | void noinline |
2816 | ev_embed_sweep (EV_P_ ev_embed *w) |
3422 | ev_embed_sweep (EV_P_ ev_embed *w) |
2817 | { |
3423 | { |
2818 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3424 | ev_run (w->other, EVRUN_NOWAIT); |
2819 | } |
3425 | } |
2820 | |
3426 | |
2821 | static void |
3427 | static void |
2822 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3428 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2823 | { |
3429 | { |
2824 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3430 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2825 | |
3431 | |
2826 | if (ev_cb (w)) |
3432 | if (ev_cb (w)) |
2827 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3433 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2828 | else |
3434 | else |
2829 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3435 | ev_run (w->other, EVRUN_NOWAIT); |
2830 | } |
3436 | } |
2831 | |
3437 | |
2832 | static void |
3438 | static void |
2833 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3439 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2834 | { |
3440 | { |
2835 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3441 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2836 | |
3442 | |
2837 | { |
3443 | { |
2838 | struct ev_loop *loop = w->other; |
3444 | EV_P = w->other; |
2839 | |
3445 | |
2840 | while (fdchangecnt) |
3446 | while (fdchangecnt) |
2841 | { |
3447 | { |
2842 | fd_reify (EV_A); |
3448 | fd_reify (EV_A); |
2843 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3449 | ev_run (EV_A_ EVRUN_NOWAIT); |
2844 | } |
3450 | } |
2845 | } |
3451 | } |
2846 | } |
3452 | } |
2847 | |
3453 | |
2848 | static void |
3454 | static void |
2849 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3455 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2850 | { |
3456 | { |
2851 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3457 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2852 | |
3458 | |
|
|
3459 | ev_embed_stop (EV_A_ w); |
|
|
3460 | |
2853 | { |
3461 | { |
2854 | struct ev_loop *loop = w->other; |
3462 | EV_P = w->other; |
2855 | |
3463 | |
2856 | ev_loop_fork (EV_A); |
3464 | ev_loop_fork (EV_A); |
|
|
3465 | ev_run (EV_A_ EVRUN_NOWAIT); |
2857 | } |
3466 | } |
|
|
3467 | |
|
|
3468 | ev_embed_start (EV_A_ w); |
2858 | } |
3469 | } |
2859 | |
3470 | |
2860 | #if 0 |
3471 | #if 0 |
2861 | static void |
3472 | static void |
2862 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3473 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2870 | { |
3481 | { |
2871 | if (expect_false (ev_is_active (w))) |
3482 | if (expect_false (ev_is_active (w))) |
2872 | return; |
3483 | return; |
2873 | |
3484 | |
2874 | { |
3485 | { |
2875 | struct ev_loop *loop = w->other; |
3486 | EV_P = w->other; |
2876 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3487 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2877 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3488 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2878 | } |
3489 | } |
2879 | |
3490 | |
2880 | EV_FREQUENT_CHECK; |
3491 | EV_FREQUENT_CHECK; |
2881 | |
3492 | |
… | |
… | |
2907 | |
3518 | |
2908 | ev_io_stop (EV_A_ &w->io); |
3519 | ev_io_stop (EV_A_ &w->io); |
2909 | ev_prepare_stop (EV_A_ &w->prepare); |
3520 | ev_prepare_stop (EV_A_ &w->prepare); |
2910 | ev_fork_stop (EV_A_ &w->fork); |
3521 | ev_fork_stop (EV_A_ &w->fork); |
2911 | |
3522 | |
|
|
3523 | ev_stop (EV_A_ (W)w); |
|
|
3524 | |
2912 | EV_FREQUENT_CHECK; |
3525 | EV_FREQUENT_CHECK; |
2913 | } |
3526 | } |
2914 | #endif |
3527 | #endif |
2915 | |
3528 | |
2916 | #if EV_FORK_ENABLE |
3529 | #if EV_FORK_ENABLE |
… | |
… | |
2956 | ev_async_start (EV_P_ ev_async *w) |
3569 | ev_async_start (EV_P_ ev_async *w) |
2957 | { |
3570 | { |
2958 | if (expect_false (ev_is_active (w))) |
3571 | if (expect_false (ev_is_active (w))) |
2959 | return; |
3572 | return; |
2960 | |
3573 | |
|
|
3574 | w->sent = 0; |
|
|
3575 | |
2961 | evpipe_init (EV_A); |
3576 | evpipe_init (EV_A); |
2962 | |
3577 | |
2963 | EV_FREQUENT_CHECK; |
3578 | EV_FREQUENT_CHECK; |
2964 | |
3579 | |
2965 | ev_start (EV_A_ (W)w, ++asynccnt); |
3580 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
2992 | |
3607 | |
2993 | void |
3608 | void |
2994 | ev_async_send (EV_P_ ev_async *w) |
3609 | ev_async_send (EV_P_ ev_async *w) |
2995 | { |
3610 | { |
2996 | w->sent = 1; |
3611 | w->sent = 1; |
2997 | evpipe_write (EV_A_ &gotasync); |
3612 | evpipe_write (EV_A_ &async_pending); |
2998 | } |
3613 | } |
2999 | #endif |
3614 | #endif |
3000 | |
3615 | |
3001 | /*****************************************************************************/ |
3616 | /*****************************************************************************/ |
3002 | |
3617 | |
… | |
… | |
3042 | { |
3657 | { |
3043 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3658 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3044 | |
3659 | |
3045 | if (expect_false (!once)) |
3660 | if (expect_false (!once)) |
3046 | { |
3661 | { |
3047 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3662 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3048 | return; |
3663 | return; |
3049 | } |
3664 | } |
3050 | |
3665 | |
3051 | once->cb = cb; |
3666 | once->cb = cb; |
3052 | once->arg = arg; |
3667 | once->arg = arg; |
… | |
… | |
3064 | ev_timer_set (&once->to, timeout, 0.); |
3679 | ev_timer_set (&once->to, timeout, 0.); |
3065 | ev_timer_start (EV_A_ &once->to); |
3680 | ev_timer_start (EV_A_ &once->to); |
3066 | } |
3681 | } |
3067 | } |
3682 | } |
3068 | |
3683 | |
|
|
3684 | /*****************************************************************************/ |
|
|
3685 | |
|
|
3686 | #if EV_WALK_ENABLE |
|
|
3687 | void |
|
|
3688 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3689 | { |
|
|
3690 | int i, j; |
|
|
3691 | ev_watcher_list *wl, *wn; |
|
|
3692 | |
|
|
3693 | if (types & (EV_IO | EV_EMBED)) |
|
|
3694 | for (i = 0; i < anfdmax; ++i) |
|
|
3695 | for (wl = anfds [i].head; wl; ) |
|
|
3696 | { |
|
|
3697 | wn = wl->next; |
|
|
3698 | |
|
|
3699 | #if EV_EMBED_ENABLE |
|
|
3700 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3701 | { |
|
|
3702 | if (types & EV_EMBED) |
|
|
3703 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3704 | } |
|
|
3705 | else |
|
|
3706 | #endif |
|
|
3707 | #if EV_USE_INOTIFY |
|
|
3708 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3709 | ; |
|
|
3710 | else |
|
|
3711 | #endif |
|
|
3712 | if ((ev_io *)wl != &pipe_w) |
|
|
3713 | if (types & EV_IO) |
|
|
3714 | cb (EV_A_ EV_IO, wl); |
|
|
3715 | |
|
|
3716 | wl = wn; |
|
|
3717 | } |
|
|
3718 | |
|
|
3719 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3720 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3721 | #if EV_STAT_ENABLE |
|
|
3722 | /*TODO: timer is not always active*/ |
|
|
3723 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3724 | { |
|
|
3725 | if (types & EV_STAT) |
|
|
3726 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3727 | } |
|
|
3728 | else |
|
|
3729 | #endif |
|
|
3730 | if (types & EV_TIMER) |
|
|
3731 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3732 | |
|
|
3733 | #if EV_PERIODIC_ENABLE |
|
|
3734 | if (types & EV_PERIODIC) |
|
|
3735 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3736 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3737 | #endif |
|
|
3738 | |
|
|
3739 | #if EV_IDLE_ENABLE |
|
|
3740 | if (types & EV_IDLE) |
|
|
3741 | for (j = NUMPRI; i--; ) |
|
|
3742 | for (i = idlecnt [j]; i--; ) |
|
|
3743 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3744 | #endif |
|
|
3745 | |
|
|
3746 | #if EV_FORK_ENABLE |
|
|
3747 | if (types & EV_FORK) |
|
|
3748 | for (i = forkcnt; i--; ) |
|
|
3749 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3750 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3751 | #endif |
|
|
3752 | |
|
|
3753 | #if EV_ASYNC_ENABLE |
|
|
3754 | if (types & EV_ASYNC) |
|
|
3755 | for (i = asynccnt; i--; ) |
|
|
3756 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3757 | #endif |
|
|
3758 | |
|
|
3759 | #if EV_PREPARE_ENABLE |
|
|
3760 | if (types & EV_PREPARE) |
|
|
3761 | for (i = preparecnt; i--; ) |
|
|
3762 | # if EV_EMBED_ENABLE |
|
|
3763 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3764 | # endif |
|
|
3765 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3766 | #endif |
|
|
3767 | |
|
|
3768 | #if EV_CHECK_ENABLE |
|
|
3769 | if (types & EV_CHECK) |
|
|
3770 | for (i = checkcnt; i--; ) |
|
|
3771 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3772 | #endif |
|
|
3773 | |
|
|
3774 | #if EV_SIGNAL_ENABLE |
|
|
3775 | if (types & EV_SIGNAL) |
|
|
3776 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3777 | for (wl = signals [i].head; wl; ) |
|
|
3778 | { |
|
|
3779 | wn = wl->next; |
|
|
3780 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3781 | wl = wn; |
|
|
3782 | } |
|
|
3783 | #endif |
|
|
3784 | |
|
|
3785 | #if EV_CHILD_ENABLE |
|
|
3786 | if (types & EV_CHILD) |
|
|
3787 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3788 | for (wl = childs [i]; wl; ) |
|
|
3789 | { |
|
|
3790 | wn = wl->next; |
|
|
3791 | cb (EV_A_ EV_CHILD, wl); |
|
|
3792 | wl = wn; |
|
|
3793 | } |
|
|
3794 | #endif |
|
|
3795 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3796 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3797 | } |
|
|
3798 | #endif |
|
|
3799 | |
3069 | #if EV_MULTIPLICITY |
3800 | #if EV_MULTIPLICITY |
3070 | #include "ev_wrap.h" |
3801 | #include "ev_wrap.h" |
3071 | #endif |
3802 | #endif |
3072 | |
3803 | |
3073 | #ifdef __cplusplus |
3804 | EV_CPP(}) |
3074 | } |
|
|
3075 | #endif |
|
|
3076 | |
3805 | |