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 |
130 | # endif |
148 | # endif |
131 | |
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 |
|
|
157 | # endif |
|
|
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 | |
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|
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> |
158 | #else |
189 | #else |
|
|
190 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
192 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
164 | #endif |
197 | #endif |
|
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198 | |
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|
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
200 | * a limit of 1024 into their select. Where people have brains, |
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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 |
165 | |
206 | |
166 | /* 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 */ |
167 | |
208 | |
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209 | /* try to deduce the maximum number of signals on this platform */ |
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|
210 | #if defined (EV_NSIG) |
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|
211 | /* use what's provided */ |
|
|
212 | #elif defined (NSIG) |
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213 | # define EV_NSIG (NSIG) |
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214 | #elif defined(_NSIG) |
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215 | # define EV_NSIG (_NSIG) |
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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) |
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220 | #elif defined (_SIG_MAX) |
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221 | # define EV_NSIG (_SIG_MAX+1) |
|
|
222 | #elif defined (MAXSIG) |
|
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223 | # define EV_NSIG (MAXSIG+1) |
|
|
224 | #elif defined (MAX_SIG) |
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225 | # define EV_NSIG (MAX_SIG+1) |
|
|
226 | #elif defined (SIGARRAYSIZE) |
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227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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228 | #elif defined (_sys_nsig) |
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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 |
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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 |
|
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240 | # else |
|
|
241 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
242 | # endif |
|
|
243 | #endif |
|
|
244 | |
168 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
|
|
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
248 | # else |
169 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
|
|
250 | # endif |
170 | #endif |
251 | #endif |
171 | |
252 | |
172 | #ifndef EV_USE_REALTIME |
253 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
255 | #endif |
175 | |
256 | |
176 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
|
|
258 | # if _POSIX_C_SOURCE >= 199309L |
|
|
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
260 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
|
|
262 | # endif |
178 | #endif |
263 | #endif |
179 | |
264 | |
180 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
267 | #endif |
183 | |
268 | |
184 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
187 | # else |
272 | # else |
188 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
274 | # endif |
190 | #endif |
275 | #endif |
191 | |
276 | |
192 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
280 | # else |
196 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
197 | # endif |
282 | # endif |
198 | #endif |
283 | #endif |
199 | |
284 | |
… | |
… | |
205 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
206 | #endif |
291 | #endif |
207 | |
292 | |
208 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
296 | # else |
212 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
213 | # endif |
298 | # endif |
214 | #endif |
299 | #endif |
215 | |
300 | |
216 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
218 | # define EV_PID_HASHSIZE 1 |
|
|
219 | # else |
|
|
220 | # define EV_PID_HASHSIZE 16 |
|
|
221 | # endif |
|
|
222 | #endif |
303 | #endif |
223 | |
304 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
226 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
227 | # else |
|
|
228 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
229 | # endif |
|
|
230 | #endif |
307 | #endif |
231 | |
308 | |
232 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
312 | # else |
236 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
237 | # endif |
314 | # endif |
238 | #endif |
315 | #endif |
239 | |
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 |
|
|
322 | # endif |
|
|
323 | #endif |
|
|
324 | |
|
|
325 | #if 0 /* debugging */ |
|
|
326 | # define EV_VERIFY 3 |
|
|
327 | # define EV_USE_4HEAP 1 |
|
|
328 | # define EV_HEAP_CACHE_AT 1 |
|
|
329 | #endif |
|
|
330 | |
|
|
331 | #ifndef EV_VERIFY |
|
|
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
333 | #endif |
|
|
334 | |
|
|
335 | #ifndef EV_USE_4HEAP |
|
|
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
|
|
337 | #endif |
|
|
338 | |
|
|
339 | #ifndef EV_HEAP_CACHE_AT |
|
|
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 |
|
|
355 | #endif |
|
|
356 | |
240 | /* 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 |
241 | |
364 | |
242 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
245 | #endif |
368 | #endif |
… | |
… | |
259 | # include <sys/select.h> |
382 | # include <sys/select.h> |
260 | # endif |
383 | # endif |
261 | #endif |
384 | #endif |
262 | |
385 | |
263 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
|
|
387 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
388 | # include <sys/inotify.h> |
|
|
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
390 | # ifndef IN_DONT_FOLLOW |
|
|
391 | # undef EV_USE_INOTIFY |
|
|
392 | # define EV_USE_INOTIFY 0 |
|
|
393 | # endif |
265 | #endif |
394 | #endif |
266 | |
395 | |
267 | #if EV_SELECT_IS_WINSOCKET |
396 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
397 | # include <winsock.h> |
269 | #endif |
398 | #endif |
270 | |
399 | |
271 | #if EV_USE_EVENTFD |
400 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
401 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
402 | # include <stdint.h> |
|
|
403 | # ifndef EFD_NONBLOCK |
|
|
404 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
405 | # endif |
|
|
406 | # ifndef EFD_CLOEXEC |
|
|
407 | # ifdef O_CLOEXEC |
|
|
408 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
409 | # else |
|
|
410 | # define EFD_CLOEXEC 02000000 |
|
|
411 | # endif |
|
|
412 | # endif |
274 | int eventfd (unsigned int initval, int flags); |
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
414 | #endif |
|
|
415 | |
|
|
416 | #if EV_USE_SIGNALFD |
|
|
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
418 | # include <stdint.h> |
|
|
419 | # ifndef SFD_NONBLOCK |
|
|
420 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
421 | # endif |
|
|
422 | # ifndef SFD_CLOEXEC |
|
|
423 | # ifdef O_CLOEXEC |
|
|
424 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
425 | # else |
|
|
426 | # define SFD_CLOEXEC 02000000 |
|
|
427 | # endif |
|
|
428 | # endif |
|
|
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
430 | |
|
|
431 | struct signalfd_siginfo |
|
|
432 | { |
|
|
433 | uint32_t ssi_signo; |
|
|
434 | char pad[128 - sizeof (uint32_t)]; |
|
|
435 | }; |
275 | #endif |
436 | #endif |
276 | |
437 | |
277 | /**/ |
438 | /**/ |
|
|
439 | |
|
|
440 | #if EV_VERIFY >= 3 |
|
|
441 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
442 | #else |
|
|
443 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
444 | #endif |
278 | |
445 | |
279 | /* |
446 | /* |
280 | * This is used to avoid floating point rounding problems. |
447 | * This is used to avoid floating point rounding problems. |
281 | * It is added to ev_rt_now when scheduling periodics |
448 | * It is added to ev_rt_now when scheduling periodics |
282 | * to ensure progress, time-wise, even when rounding |
449 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
286 | */ |
453 | */ |
287 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
288 | |
455 | |
289 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
290 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
291 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
458 | |
|
|
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
292 | |
461 | |
293 | #if __GNUC__ >= 4 |
462 | #if __GNUC__ >= 4 |
294 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
295 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
296 | #else |
465 | #else |
297 | # define expect(expr,value) (expr) |
466 | # define expect(expr,value) (expr) |
298 | # define noinline |
467 | # define noinline |
299 | # if __STDC_VERSION__ < 199901L |
468 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
300 | # define inline |
469 | # define inline |
301 | # endif |
470 | # endif |
302 | #endif |
471 | #endif |
303 | |
472 | |
304 | #define expect_false(expr) expect ((expr) != 0, 0) |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
305 | #define expect_true(expr) expect ((expr) != 0, 1) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
306 | #define inline_size static inline |
475 | #define inline_size static inline |
307 | |
476 | |
308 | #if EV_MINIMAL |
477 | #if EV_FEATURE_CODE |
|
|
478 | # define inline_speed static inline |
|
|
479 | #else |
309 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
|
|
481 | #endif |
|
|
482 | |
|
|
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
484 | |
|
|
485 | #if EV_MINPRI == EV_MAXPRI |
|
|
486 | # define ABSPRI(w) (((W)w), 0) |
310 | #else |
487 | #else |
311 | # define inline_speed static inline |
|
|
312 | #endif |
|
|
313 | |
|
|
314 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
315 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
488 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
489 | #endif |
316 | |
490 | |
317 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
491 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
318 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
492 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
319 | |
493 | |
320 | typedef ev_watcher *W; |
494 | typedef ev_watcher *W; |
321 | typedef ev_watcher_list *WL; |
495 | typedef ev_watcher_list *WL; |
322 | typedef ev_watcher_time *WT; |
496 | typedef ev_watcher_time *WT; |
323 | |
497 | |
|
|
498 | #define ev_active(w) ((W)(w))->active |
|
|
499 | #define ev_at(w) ((WT)(w))->at |
|
|
500 | |
|
|
501 | #if EV_USE_REALTIME |
|
|
502 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
503 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
504 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
505 | #endif |
|
|
506 | |
324 | #if EV_USE_MONOTONIC |
507 | #if EV_USE_MONOTONIC |
325 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
326 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
327 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
508 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
509 | #endif |
|
|
510 | |
|
|
511 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
512 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
513 | #endif |
|
|
514 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
515 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
516 | #endif |
|
|
517 | #ifndef EV_WIN32_CLOSE_FD |
|
|
518 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
328 | #endif |
519 | #endif |
329 | |
520 | |
330 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
331 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
332 | #endif |
523 | #endif |
333 | |
524 | |
334 | /*****************************************************************************/ |
525 | /*****************************************************************************/ |
335 | |
526 | |
|
|
527 | #ifdef __linux |
|
|
528 | # include <sys/utsname.h> |
|
|
529 | #endif |
|
|
530 | |
|
|
531 | static unsigned int noinline |
|
|
532 | ev_linux_version (void) |
|
|
533 | { |
|
|
534 | #ifdef __linux |
|
|
535 | struct utsname buf; |
|
|
536 | unsigned int v; |
|
|
537 | int i; |
|
|
538 | char *p = buf.release; |
|
|
539 | |
|
|
540 | if (uname (&buf)) |
|
|
541 | return 0; |
|
|
542 | |
|
|
543 | for (i = 3+1; --i; ) |
|
|
544 | { |
|
|
545 | unsigned int c = 0; |
|
|
546 | |
|
|
547 | for (;;) |
|
|
548 | { |
|
|
549 | if (*p >= '0' && *p <= '9') |
|
|
550 | c = c * 10 + *p++ - '0'; |
|
|
551 | else |
|
|
552 | { |
|
|
553 | p += *p == '.'; |
|
|
554 | break; |
|
|
555 | } |
|
|
556 | } |
|
|
557 | |
|
|
558 | v = (v << 8) | c; |
|
|
559 | } |
|
|
560 | |
|
|
561 | return v; |
|
|
562 | #else |
|
|
563 | return 0; |
|
|
564 | #endif |
|
|
565 | } |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
|
|
568 | |
|
|
569 | #if EV_AVOID_STDIO |
|
|
570 | static void noinline |
|
|
571 | ev_printerr (const char *msg) |
|
|
572 | { |
|
|
573 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
574 | } |
|
|
575 | #endif |
|
|
576 | |
336 | static void (*syserr_cb)(const char *msg); |
577 | static void (*syserr_cb)(const char *msg); |
337 | |
578 | |
338 | void |
579 | void |
339 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
340 | { |
581 | { |
341 | syserr_cb = cb; |
582 | syserr_cb = cb; |
342 | } |
583 | } |
343 | |
584 | |
344 | static void noinline |
585 | static void noinline |
345 | syserr (const char *msg) |
586 | ev_syserr (const char *msg) |
346 | { |
587 | { |
347 | if (!msg) |
588 | if (!msg) |
348 | msg = "(libev) system error"; |
589 | msg = "(libev) system error"; |
349 | |
590 | |
350 | if (syserr_cb) |
591 | if (syserr_cb) |
351 | syserr_cb (msg); |
592 | syserr_cb (msg); |
352 | else |
593 | else |
353 | { |
594 | { |
|
|
595 | #if EV_AVOID_STDIO |
|
|
596 | const char *err = strerror (errno); |
|
|
597 | |
|
|
598 | ev_printerr (msg); |
|
|
599 | ev_printerr (": "); |
|
|
600 | ev_printerr (err); |
|
|
601 | ev_printerr ("\n"); |
|
|
602 | #else |
354 | perror (msg); |
603 | perror (msg); |
|
|
604 | #endif |
355 | abort (); |
605 | abort (); |
356 | } |
606 | } |
357 | } |
607 | } |
358 | |
608 | |
|
|
609 | static void * |
|
|
610 | ev_realloc_emul (void *ptr, long size) |
|
|
611 | { |
|
|
612 | #if __GLIBC__ |
|
|
613 | return realloc (ptr, size); |
|
|
614 | #else |
|
|
615 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
616 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
617 | * the single unix specification, so work around them here. |
|
|
618 | */ |
|
|
619 | |
|
|
620 | if (size) |
|
|
621 | return realloc (ptr, size); |
|
|
622 | |
|
|
623 | free (ptr); |
|
|
624 | return 0; |
|
|
625 | #endif |
|
|
626 | } |
|
|
627 | |
359 | static void *(*alloc)(void *ptr, long size); |
628 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
360 | |
629 | |
361 | void |
630 | void |
362 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
631 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
363 | { |
632 | { |
364 | alloc = cb; |
633 | alloc = cb; |
365 | } |
634 | } |
366 | |
635 | |
367 | inline_speed void * |
636 | inline_speed void * |
368 | ev_realloc (void *ptr, long size) |
637 | ev_realloc (void *ptr, long size) |
369 | { |
638 | { |
370 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
639 | ptr = alloc (ptr, size); |
371 | |
640 | |
372 | if (!ptr && size) |
641 | if (!ptr && size) |
373 | { |
642 | { |
|
|
643 | #if EV_AVOID_STDIO |
|
|
644 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
645 | #else |
374 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
646 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
647 | #endif |
375 | abort (); |
648 | abort (); |
376 | } |
649 | } |
377 | |
650 | |
378 | return ptr; |
651 | return ptr; |
379 | } |
652 | } |
… | |
… | |
381 | #define ev_malloc(size) ev_realloc (0, (size)) |
654 | #define ev_malloc(size) ev_realloc (0, (size)) |
382 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
655 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
383 | |
656 | |
384 | /*****************************************************************************/ |
657 | /*****************************************************************************/ |
385 | |
658 | |
|
|
659 | /* set in reify when reification needed */ |
|
|
660 | #define EV_ANFD_REIFY 1 |
|
|
661 | |
|
|
662 | /* file descriptor info structure */ |
386 | typedef struct |
663 | typedef struct |
387 | { |
664 | { |
388 | WL head; |
665 | WL head; |
389 | unsigned char events; |
666 | unsigned char events; /* the events watched for */ |
|
|
667 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
668 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
390 | unsigned char reify; |
669 | unsigned char unused; |
|
|
670 | #if EV_USE_EPOLL |
|
|
671 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
672 | #endif |
391 | #if EV_SELECT_IS_WINSOCKET |
673 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
392 | SOCKET handle; |
674 | SOCKET handle; |
393 | #endif |
675 | #endif |
|
|
676 | #if EV_USE_IOCP |
|
|
677 | OVERLAPPED or, ow; |
|
|
678 | #endif |
394 | } ANFD; |
679 | } ANFD; |
395 | |
680 | |
|
|
681 | /* stores the pending event set for a given watcher */ |
396 | typedef struct |
682 | typedef struct |
397 | { |
683 | { |
398 | W w; |
684 | W w; |
399 | int events; |
685 | int events; /* the pending event set for the given watcher */ |
400 | } ANPENDING; |
686 | } ANPENDING; |
401 | |
687 | |
402 | #if EV_USE_INOTIFY |
688 | #if EV_USE_INOTIFY |
|
|
689 | /* hash table entry per inotify-id */ |
403 | typedef struct |
690 | typedef struct |
404 | { |
691 | { |
405 | WL head; |
692 | WL head; |
406 | } ANFS; |
693 | } ANFS; |
|
|
694 | #endif |
|
|
695 | |
|
|
696 | /* Heap Entry */ |
|
|
697 | #if EV_HEAP_CACHE_AT |
|
|
698 | /* a heap element */ |
|
|
699 | typedef struct { |
|
|
700 | ev_tstamp at; |
|
|
701 | WT w; |
|
|
702 | } ANHE; |
|
|
703 | |
|
|
704 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
705 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
706 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
707 | #else |
|
|
708 | /* a heap element */ |
|
|
709 | typedef WT ANHE; |
|
|
710 | |
|
|
711 | #define ANHE_w(he) (he) |
|
|
712 | #define ANHE_at(he) (he)->at |
|
|
713 | #define ANHE_at_cache(he) |
407 | #endif |
714 | #endif |
408 | |
715 | |
409 | #if EV_MULTIPLICITY |
716 | #if EV_MULTIPLICITY |
410 | |
717 | |
411 | struct ev_loop |
718 | struct ev_loop |
… | |
… | |
430 | |
737 | |
431 | static int ev_default_loop_ptr; |
738 | static int ev_default_loop_ptr; |
432 | |
739 | |
433 | #endif |
740 | #endif |
434 | |
741 | |
|
|
742 | #if EV_FEATURE_API |
|
|
743 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
744 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
745 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
746 | #else |
|
|
747 | # define EV_RELEASE_CB (void)0 |
|
|
748 | # define EV_ACQUIRE_CB (void)0 |
|
|
749 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
750 | #endif |
|
|
751 | |
|
|
752 | #define EVBREAK_RECURSE 0x80 |
|
|
753 | |
435 | /*****************************************************************************/ |
754 | /*****************************************************************************/ |
436 | |
755 | |
|
|
756 | #ifndef EV_HAVE_EV_TIME |
437 | ev_tstamp |
757 | ev_tstamp |
438 | ev_time (void) |
758 | ev_time (void) |
439 | { |
759 | { |
440 | #if EV_USE_REALTIME |
760 | #if EV_USE_REALTIME |
|
|
761 | if (expect_true (have_realtime)) |
|
|
762 | { |
441 | struct timespec ts; |
763 | struct timespec ts; |
442 | clock_gettime (CLOCK_REALTIME, &ts); |
764 | clock_gettime (CLOCK_REALTIME, &ts); |
443 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
765 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
444 | #else |
766 | } |
|
|
767 | #endif |
|
|
768 | |
445 | struct timeval tv; |
769 | struct timeval tv; |
446 | gettimeofday (&tv, 0); |
770 | gettimeofday (&tv, 0); |
447 | return tv.tv_sec + tv.tv_usec * 1e-6; |
771 | return tv.tv_sec + tv.tv_usec * 1e-6; |
448 | #endif |
|
|
449 | } |
772 | } |
|
|
773 | #endif |
450 | |
774 | |
451 | ev_tstamp inline_size |
775 | inline_size ev_tstamp |
452 | get_clock (void) |
776 | get_clock (void) |
453 | { |
777 | { |
454 | #if EV_USE_MONOTONIC |
778 | #if EV_USE_MONOTONIC |
455 | if (expect_true (have_monotonic)) |
779 | if (expect_true (have_monotonic)) |
456 | { |
780 | { |
… | |
… | |
477 | if (delay > 0.) |
801 | if (delay > 0.) |
478 | { |
802 | { |
479 | #if EV_USE_NANOSLEEP |
803 | #if EV_USE_NANOSLEEP |
480 | struct timespec ts; |
804 | struct timespec ts; |
481 | |
805 | |
482 | ts.tv_sec = (time_t)delay; |
806 | EV_TS_SET (ts, delay); |
483 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
484 | |
|
|
485 | nanosleep (&ts, 0); |
807 | nanosleep (&ts, 0); |
486 | #elif defined(_WIN32) |
808 | #elif defined(_WIN32) |
487 | Sleep ((unsigned long)(delay * 1e3)); |
809 | Sleep ((unsigned long)(delay * 1e3)); |
488 | #else |
810 | #else |
489 | struct timeval tv; |
811 | struct timeval tv; |
490 | |
812 | |
491 | tv.tv_sec = (time_t)delay; |
813 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
492 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
814 | /* something not guaranteed by newer posix versions, but guaranteed */ |
493 | |
815 | /* by older ones */ |
|
|
816 | EV_TV_SET (tv, delay); |
494 | select (0, 0, 0, 0, &tv); |
817 | select (0, 0, 0, 0, &tv); |
495 | #endif |
818 | #endif |
496 | } |
819 | } |
497 | } |
820 | } |
498 | |
821 | |
499 | /*****************************************************************************/ |
822 | /*****************************************************************************/ |
500 | |
823 | |
501 | int inline_size |
824 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
825 | |
|
|
826 | /* find a suitable new size for the given array, */ |
|
|
827 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
828 | inline_size int |
502 | array_nextsize (int elem, int cur, int cnt) |
829 | array_nextsize (int elem, int cur, int cnt) |
503 | { |
830 | { |
504 | int ncur = cur + 1; |
831 | int ncur = cur + 1; |
505 | |
832 | |
506 | do |
833 | do |
507 | ncur <<= 1; |
834 | ncur <<= 1; |
508 | while (cnt > ncur); |
835 | while (cnt > ncur); |
509 | |
836 | |
510 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
837 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
511 | if (elem * ncur > 4096) |
838 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
512 | { |
839 | { |
513 | ncur *= elem; |
840 | ncur *= elem; |
514 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
841 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
515 | ncur = ncur - sizeof (void *) * 4; |
842 | ncur = ncur - sizeof (void *) * 4; |
516 | ncur /= elem; |
843 | ncur /= elem; |
517 | } |
844 | } |
518 | |
845 | |
519 | return ncur; |
846 | return ncur; |
… | |
… | |
523 | array_realloc (int elem, void *base, int *cur, int cnt) |
850 | array_realloc (int elem, void *base, int *cur, int cnt) |
524 | { |
851 | { |
525 | *cur = array_nextsize (elem, *cur, cnt); |
852 | *cur = array_nextsize (elem, *cur, cnt); |
526 | return ev_realloc (base, elem * *cur); |
853 | return ev_realloc (base, elem * *cur); |
527 | } |
854 | } |
|
|
855 | |
|
|
856 | #define array_init_zero(base,count) \ |
|
|
857 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
528 | |
858 | |
529 | #define array_needsize(type,base,cur,cnt,init) \ |
859 | #define array_needsize(type,base,cur,cnt,init) \ |
530 | if (expect_false ((cnt) > (cur))) \ |
860 | if (expect_false ((cnt) > (cur))) \ |
531 | { \ |
861 | { \ |
532 | int ocur_ = (cur); \ |
862 | int ocur_ = (cur); \ |
… | |
… | |
544 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
874 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
545 | } |
875 | } |
546 | #endif |
876 | #endif |
547 | |
877 | |
548 | #define array_free(stem, idx) \ |
878 | #define array_free(stem, idx) \ |
549 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
879 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
550 | |
880 | |
551 | /*****************************************************************************/ |
881 | /*****************************************************************************/ |
|
|
882 | |
|
|
883 | /* dummy callback for pending events */ |
|
|
884 | static void noinline |
|
|
885 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
886 | { |
|
|
887 | } |
552 | |
888 | |
553 | void noinline |
889 | void noinline |
554 | ev_feed_event (EV_P_ void *w, int revents) |
890 | ev_feed_event (EV_P_ void *w, int revents) |
555 | { |
891 | { |
556 | W w_ = (W)w; |
892 | W w_ = (W)w; |
… | |
… | |
565 | pendings [pri][w_->pending - 1].w = w_; |
901 | pendings [pri][w_->pending - 1].w = w_; |
566 | pendings [pri][w_->pending - 1].events = revents; |
902 | pendings [pri][w_->pending - 1].events = revents; |
567 | } |
903 | } |
568 | } |
904 | } |
569 | |
905 | |
570 | void inline_speed |
906 | inline_speed void |
|
|
907 | feed_reverse (EV_P_ W w) |
|
|
908 | { |
|
|
909 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
910 | rfeeds [rfeedcnt++] = w; |
|
|
911 | } |
|
|
912 | |
|
|
913 | inline_size void |
|
|
914 | feed_reverse_done (EV_P_ int revents) |
|
|
915 | { |
|
|
916 | do |
|
|
917 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
918 | while (rfeedcnt); |
|
|
919 | } |
|
|
920 | |
|
|
921 | inline_speed void |
571 | queue_events (EV_P_ W *events, int eventcnt, int type) |
922 | queue_events (EV_P_ W *events, int eventcnt, int type) |
572 | { |
923 | { |
573 | int i; |
924 | int i; |
574 | |
925 | |
575 | for (i = 0; i < eventcnt; ++i) |
926 | for (i = 0; i < eventcnt; ++i) |
576 | ev_feed_event (EV_A_ events [i], type); |
927 | ev_feed_event (EV_A_ events [i], type); |
577 | } |
928 | } |
578 | |
929 | |
579 | /*****************************************************************************/ |
930 | /*****************************************************************************/ |
580 | |
931 | |
581 | void inline_size |
932 | inline_speed void |
582 | anfds_init (ANFD *base, int count) |
|
|
583 | { |
|
|
584 | while (count--) |
|
|
585 | { |
|
|
586 | base->head = 0; |
|
|
587 | base->events = EV_NONE; |
|
|
588 | base->reify = 0; |
|
|
589 | |
|
|
590 | ++base; |
|
|
591 | } |
|
|
592 | } |
|
|
593 | |
|
|
594 | void inline_speed |
|
|
595 | fd_event (EV_P_ int fd, int revents) |
933 | fd_event_nocheck (EV_P_ int fd, int revents) |
596 | { |
934 | { |
597 | ANFD *anfd = anfds + fd; |
935 | ANFD *anfd = anfds + fd; |
598 | ev_io *w; |
936 | ev_io *w; |
599 | |
937 | |
600 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
938 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
604 | if (ev) |
942 | if (ev) |
605 | ev_feed_event (EV_A_ (W)w, ev); |
943 | ev_feed_event (EV_A_ (W)w, ev); |
606 | } |
944 | } |
607 | } |
945 | } |
608 | |
946 | |
|
|
947 | /* do not submit kernel events for fds that have reify set */ |
|
|
948 | /* because that means they changed while we were polling for new events */ |
|
|
949 | inline_speed void |
|
|
950 | fd_event (EV_P_ int fd, int revents) |
|
|
951 | { |
|
|
952 | ANFD *anfd = anfds + fd; |
|
|
953 | |
|
|
954 | if (expect_true (!anfd->reify)) |
|
|
955 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
956 | } |
|
|
957 | |
609 | void |
958 | void |
610 | ev_feed_fd_event (EV_P_ int fd, int revents) |
959 | ev_feed_fd_event (EV_P_ int fd, int revents) |
611 | { |
960 | { |
612 | if (fd >= 0 && fd < anfdmax) |
961 | if (fd >= 0 && fd < anfdmax) |
613 | fd_event (EV_A_ fd, revents); |
962 | fd_event_nocheck (EV_A_ fd, revents); |
614 | } |
963 | } |
615 | |
964 | |
616 | void inline_size |
965 | /* make sure the external fd watch events are in-sync */ |
|
|
966 | /* with the kernel/libev internal state */ |
|
|
967 | inline_size void |
617 | fd_reify (EV_P) |
968 | fd_reify (EV_P) |
618 | { |
969 | { |
619 | int i; |
970 | int i; |
620 | |
971 | |
621 | for (i = 0; i < fdchangecnt; ++i) |
972 | for (i = 0; i < fdchangecnt; ++i) |
622 | { |
973 | { |
623 | int fd = fdchanges [i]; |
974 | int fd = fdchanges [i]; |
624 | ANFD *anfd = anfds + fd; |
975 | ANFD *anfd = anfds + fd; |
625 | ev_io *w; |
976 | ev_io *w; |
626 | |
977 | |
627 | unsigned char events = 0; |
978 | unsigned char o_events = anfd->events; |
|
|
979 | unsigned char o_reify = anfd->reify; |
628 | |
980 | |
629 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
981 | anfd->reify = 0; |
630 | events |= (unsigned char)w->events; |
|
|
631 | |
982 | |
632 | #if EV_SELECT_IS_WINSOCKET |
983 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
633 | if (events) |
984 | if (o_reify & EV__IOFDSET) |
634 | { |
985 | { |
635 | unsigned long argp; |
986 | unsigned long arg; |
636 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
637 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
987 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
638 | #else |
|
|
639 | anfd->handle = _get_osfhandle (fd); |
|
|
640 | #endif |
|
|
641 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
988 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
989 | printf ("oi %d %x\n", fd, anfd->handle);//D |
642 | } |
990 | } |
643 | #endif |
991 | #endif |
644 | |
992 | |
|
|
993 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
645 | { |
994 | { |
646 | unsigned char o_events = anfd->events; |
|
|
647 | unsigned char o_reify = anfd->reify; |
|
|
648 | |
|
|
649 | anfd->reify = 0; |
|
|
650 | anfd->events = events; |
995 | anfd->events = 0; |
651 | |
996 | |
652 | if (o_events != events || o_reify & EV_IOFDSET) |
997 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
998 | anfd->events |= (unsigned char)w->events; |
|
|
999 | |
|
|
1000 | if (o_events != anfd->events) |
|
|
1001 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | if (o_reify & EV__IOFDSET) |
653 | backend_modify (EV_A_ fd, o_events, events); |
1005 | backend_modify (EV_A_ fd, o_events, anfd->events); |
654 | } |
|
|
655 | } |
1006 | } |
656 | |
1007 | |
657 | fdchangecnt = 0; |
1008 | fdchangecnt = 0; |
658 | } |
1009 | } |
659 | |
1010 | |
660 | void inline_size |
1011 | /* something about the given fd changed */ |
|
|
1012 | inline_size void |
661 | fd_change (EV_P_ int fd, int flags) |
1013 | fd_change (EV_P_ int fd, int flags) |
662 | { |
1014 | { |
663 | unsigned char reify = anfds [fd].reify; |
1015 | unsigned char reify = anfds [fd].reify; |
664 | anfds [fd].reify |= flags; |
1016 | anfds [fd].reify |= flags; |
665 | |
1017 | |
… | |
… | |
669 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1021 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
670 | fdchanges [fdchangecnt - 1] = fd; |
1022 | fdchanges [fdchangecnt - 1] = fd; |
671 | } |
1023 | } |
672 | } |
1024 | } |
673 | |
1025 | |
674 | void inline_speed |
1026 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1027 | inline_speed void |
675 | fd_kill (EV_P_ int fd) |
1028 | fd_kill (EV_P_ int fd) |
676 | { |
1029 | { |
677 | ev_io *w; |
1030 | ev_io *w; |
678 | |
1031 | |
679 | while ((w = (ev_io *)anfds [fd].head)) |
1032 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
681 | ev_io_stop (EV_A_ w); |
1034 | ev_io_stop (EV_A_ w); |
682 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1035 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
683 | } |
1036 | } |
684 | } |
1037 | } |
685 | |
1038 | |
686 | int inline_size |
1039 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1040 | inline_size int |
687 | fd_valid (int fd) |
1041 | fd_valid (int fd) |
688 | { |
1042 | { |
689 | #ifdef _WIN32 |
1043 | #ifdef _WIN32 |
690 | return _get_osfhandle (fd) != -1; |
1044 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
691 | #else |
1045 | #else |
692 | return fcntl (fd, F_GETFD) != -1; |
1046 | return fcntl (fd, F_GETFD) != -1; |
693 | #endif |
1047 | #endif |
694 | } |
1048 | } |
695 | |
1049 | |
… | |
… | |
699 | { |
1053 | { |
700 | int fd; |
1054 | int fd; |
701 | |
1055 | |
702 | for (fd = 0; fd < anfdmax; ++fd) |
1056 | for (fd = 0; fd < anfdmax; ++fd) |
703 | if (anfds [fd].events) |
1057 | if (anfds [fd].events) |
704 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1058 | if (!fd_valid (fd) && errno == EBADF) |
705 | fd_kill (EV_A_ fd); |
1059 | fd_kill (EV_A_ fd); |
706 | } |
1060 | } |
707 | |
1061 | |
708 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1062 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
709 | static void noinline |
1063 | static void noinline |
… | |
… | |
713 | |
1067 | |
714 | for (fd = anfdmax; fd--; ) |
1068 | for (fd = anfdmax; fd--; ) |
715 | if (anfds [fd].events) |
1069 | if (anfds [fd].events) |
716 | { |
1070 | { |
717 | fd_kill (EV_A_ fd); |
1071 | fd_kill (EV_A_ fd); |
718 | return; |
1072 | break; |
719 | } |
1073 | } |
720 | } |
1074 | } |
721 | |
1075 | |
722 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1076 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
723 | static void noinline |
1077 | static void noinline |
… | |
… | |
727 | |
1081 | |
728 | for (fd = 0; fd < anfdmax; ++fd) |
1082 | for (fd = 0; fd < anfdmax; ++fd) |
729 | if (anfds [fd].events) |
1083 | if (anfds [fd].events) |
730 | { |
1084 | { |
731 | anfds [fd].events = 0; |
1085 | anfds [fd].events = 0; |
|
|
1086 | anfds [fd].emask = 0; |
732 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1087 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
733 | } |
1088 | } |
734 | } |
1089 | } |
735 | |
1090 | |
736 | /*****************************************************************************/ |
1091 | /* used to prepare libev internal fd's */ |
737 | |
1092 | /* this is not fork-safe */ |
738 | void inline_speed |
1093 | inline_speed void |
739 | upheap (WT *heap, int k) |
|
|
740 | { |
|
|
741 | WT w = heap [k]; |
|
|
742 | |
|
|
743 | while (k) |
|
|
744 | { |
|
|
745 | int p = (k - 1) >> 1; |
|
|
746 | |
|
|
747 | if (heap [p]->at <= w->at) |
|
|
748 | break; |
|
|
749 | |
|
|
750 | heap [k] = heap [p]; |
|
|
751 | ((W)heap [k])->active = k + 1; |
|
|
752 | k = p; |
|
|
753 | } |
|
|
754 | |
|
|
755 | heap [k] = w; |
|
|
756 | ((W)heap [k])->active = k + 1; |
|
|
757 | } |
|
|
758 | |
|
|
759 | void inline_speed |
|
|
760 | downheap (WT *heap, int N, int k) |
|
|
761 | { |
|
|
762 | WT w = heap [k]; |
|
|
763 | |
|
|
764 | for (;;) |
|
|
765 | { |
|
|
766 | int c = (k << 1) + 1; |
|
|
767 | |
|
|
768 | if (c >= N) |
|
|
769 | break; |
|
|
770 | |
|
|
771 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
772 | ? 1 : 0; |
|
|
773 | |
|
|
774 | if (w->at <= heap [c]->at) |
|
|
775 | break; |
|
|
776 | |
|
|
777 | heap [k] = heap [c]; |
|
|
778 | ((W)heap [k])->active = k + 1; |
|
|
779 | |
|
|
780 | k = c; |
|
|
781 | } |
|
|
782 | |
|
|
783 | heap [k] = w; |
|
|
784 | ((W)heap [k])->active = k + 1; |
|
|
785 | } |
|
|
786 | |
|
|
787 | void inline_size |
|
|
788 | adjustheap (WT *heap, int N, int k) |
|
|
789 | { |
|
|
790 | upheap (heap, k); |
|
|
791 | downheap (heap, N, k); |
|
|
792 | } |
|
|
793 | |
|
|
794 | /*****************************************************************************/ |
|
|
795 | |
|
|
796 | typedef struct |
|
|
797 | { |
|
|
798 | WL head; |
|
|
799 | EV_ATOMIC_T gotsig; |
|
|
800 | } ANSIG; |
|
|
801 | |
|
|
802 | static ANSIG *signals; |
|
|
803 | static int signalmax; |
|
|
804 | |
|
|
805 | static EV_ATOMIC_T gotsig; |
|
|
806 | |
|
|
807 | void inline_size |
|
|
808 | signals_init (ANSIG *base, int count) |
|
|
809 | { |
|
|
810 | while (count--) |
|
|
811 | { |
|
|
812 | base->head = 0; |
|
|
813 | base->gotsig = 0; |
|
|
814 | |
|
|
815 | ++base; |
|
|
816 | } |
|
|
817 | } |
|
|
818 | |
|
|
819 | /*****************************************************************************/ |
|
|
820 | |
|
|
821 | void inline_speed |
|
|
822 | fd_intern (int fd) |
1094 | fd_intern (int fd) |
823 | { |
1095 | { |
824 | #ifdef _WIN32 |
1096 | #ifdef _WIN32 |
825 | int arg = 1; |
1097 | unsigned long arg = 1; |
826 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1098 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
827 | #else |
1099 | #else |
828 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1100 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
829 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1101 | fcntl (fd, F_SETFL, O_NONBLOCK); |
830 | #endif |
1102 | #endif |
831 | } |
1103 | } |
832 | |
1104 | |
|
|
1105 | /*****************************************************************************/ |
|
|
1106 | |
|
|
1107 | /* |
|
|
1108 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1109 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1110 | * the branching factor of the d-tree. |
|
|
1111 | */ |
|
|
1112 | |
|
|
1113 | /* |
|
|
1114 | * at the moment we allow libev the luxury of two heaps, |
|
|
1115 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1116 | * which is more cache-efficient. |
|
|
1117 | * the difference is about 5% with 50000+ watchers. |
|
|
1118 | */ |
|
|
1119 | #if EV_USE_4HEAP |
|
|
1120 | |
|
|
1121 | #define DHEAP 4 |
|
|
1122 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1123 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1124 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1125 | |
|
|
1126 | /* away from the root */ |
|
|
1127 | inline_speed void |
|
|
1128 | downheap (ANHE *heap, int N, int k) |
|
|
1129 | { |
|
|
1130 | ANHE he = heap [k]; |
|
|
1131 | ANHE *E = heap + N + HEAP0; |
|
|
1132 | |
|
|
1133 | for (;;) |
|
|
1134 | { |
|
|
1135 | ev_tstamp minat; |
|
|
1136 | ANHE *minpos; |
|
|
1137 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1138 | |
|
|
1139 | /* find minimum child */ |
|
|
1140 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1141 | { |
|
|
1142 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1143 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1144 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1145 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1146 | } |
|
|
1147 | else if (pos < E) |
|
|
1148 | { |
|
|
1149 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1150 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1151 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1152 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1153 | } |
|
|
1154 | else |
|
|
1155 | break; |
|
|
1156 | |
|
|
1157 | if (ANHE_at (he) <= minat) |
|
|
1158 | break; |
|
|
1159 | |
|
|
1160 | heap [k] = *minpos; |
|
|
1161 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1162 | |
|
|
1163 | k = minpos - heap; |
|
|
1164 | } |
|
|
1165 | |
|
|
1166 | heap [k] = he; |
|
|
1167 | ev_active (ANHE_w (he)) = k; |
|
|
1168 | } |
|
|
1169 | |
|
|
1170 | #else /* 4HEAP */ |
|
|
1171 | |
|
|
1172 | #define HEAP0 1 |
|
|
1173 | #define HPARENT(k) ((k) >> 1) |
|
|
1174 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1175 | |
|
|
1176 | /* away from the root */ |
|
|
1177 | inline_speed void |
|
|
1178 | downheap (ANHE *heap, int N, int k) |
|
|
1179 | { |
|
|
1180 | ANHE he = heap [k]; |
|
|
1181 | |
|
|
1182 | for (;;) |
|
|
1183 | { |
|
|
1184 | int c = k << 1; |
|
|
1185 | |
|
|
1186 | if (c >= N + HEAP0) |
|
|
1187 | break; |
|
|
1188 | |
|
|
1189 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1190 | ? 1 : 0; |
|
|
1191 | |
|
|
1192 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1193 | break; |
|
|
1194 | |
|
|
1195 | heap [k] = heap [c]; |
|
|
1196 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1197 | |
|
|
1198 | k = c; |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | heap [k] = he; |
|
|
1202 | ev_active (ANHE_w (he)) = k; |
|
|
1203 | } |
|
|
1204 | #endif |
|
|
1205 | |
|
|
1206 | /* towards the root */ |
|
|
1207 | inline_speed void |
|
|
1208 | upheap (ANHE *heap, int k) |
|
|
1209 | { |
|
|
1210 | ANHE he = heap [k]; |
|
|
1211 | |
|
|
1212 | for (;;) |
|
|
1213 | { |
|
|
1214 | int p = HPARENT (k); |
|
|
1215 | |
|
|
1216 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1217 | break; |
|
|
1218 | |
|
|
1219 | heap [k] = heap [p]; |
|
|
1220 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1221 | k = p; |
|
|
1222 | } |
|
|
1223 | |
|
|
1224 | heap [k] = he; |
|
|
1225 | ev_active (ANHE_w (he)) = k; |
|
|
1226 | } |
|
|
1227 | |
|
|
1228 | /* move an element suitably so it is in a correct place */ |
|
|
1229 | inline_size void |
|
|
1230 | adjustheap (ANHE *heap, int N, int k) |
|
|
1231 | { |
|
|
1232 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1233 | upheap (heap, k); |
|
|
1234 | else |
|
|
1235 | downheap (heap, N, k); |
|
|
1236 | } |
|
|
1237 | |
|
|
1238 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1239 | inline_size void |
|
|
1240 | reheap (ANHE *heap, int N) |
|
|
1241 | { |
|
|
1242 | int i; |
|
|
1243 | |
|
|
1244 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1245 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1246 | for (i = 0; i < N; ++i) |
|
|
1247 | upheap (heap, i + HEAP0); |
|
|
1248 | } |
|
|
1249 | |
|
|
1250 | /*****************************************************************************/ |
|
|
1251 | |
|
|
1252 | /* associate signal watchers to a signal signal */ |
|
|
1253 | typedef struct |
|
|
1254 | { |
|
|
1255 | EV_ATOMIC_T pending; |
|
|
1256 | #if EV_MULTIPLICITY |
|
|
1257 | EV_P; |
|
|
1258 | #endif |
|
|
1259 | WL head; |
|
|
1260 | } ANSIG; |
|
|
1261 | |
|
|
1262 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1263 | |
|
|
1264 | /*****************************************************************************/ |
|
|
1265 | |
|
|
1266 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1267 | |
833 | static void noinline |
1268 | static void noinline |
834 | evpipe_init (EV_P) |
1269 | evpipe_init (EV_P) |
835 | { |
1270 | { |
836 | if (!ev_is_active (&pipeev)) |
1271 | if (!ev_is_active (&pipe_w)) |
837 | { |
1272 | { |
838 | #if EV_USE_EVENTFD |
1273 | # if EV_USE_EVENTFD |
|
|
1274 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1275 | if (evfd < 0 && errno == EINVAL) |
839 | if ((evfd = eventfd (0, 0)) >= 0) |
1276 | evfd = eventfd (0, 0); |
|
|
1277 | |
|
|
1278 | if (evfd >= 0) |
840 | { |
1279 | { |
841 | evpipe [0] = -1; |
1280 | evpipe [0] = -1; |
842 | fd_intern (evfd); |
1281 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
843 | ev_io_set (&pipeev, evfd, EV_READ); |
1282 | ev_io_set (&pipe_w, evfd, EV_READ); |
844 | } |
1283 | } |
845 | else |
1284 | else |
846 | #endif |
1285 | # endif |
847 | { |
1286 | { |
848 | while (pipe (evpipe)) |
1287 | while (pipe (evpipe)) |
849 | syserr ("(libev) error creating signal/async pipe"); |
1288 | ev_syserr ("(libev) error creating signal/async pipe"); |
850 | |
1289 | |
851 | fd_intern (evpipe [0]); |
1290 | fd_intern (evpipe [0]); |
852 | fd_intern (evpipe [1]); |
1291 | fd_intern (evpipe [1]); |
853 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1292 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
854 | } |
1293 | } |
855 | |
1294 | |
856 | ev_io_start (EV_A_ &pipeev); |
1295 | ev_io_start (EV_A_ &pipe_w); |
857 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1296 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
858 | } |
1297 | } |
859 | } |
1298 | } |
860 | |
1299 | |
861 | void inline_size |
1300 | inline_size void |
862 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1301 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
863 | { |
1302 | { |
864 | if (!*flag) |
1303 | if (!*flag) |
865 | { |
1304 | { |
866 | int old_errno = errno; /* save errno because write might clobber it */ |
1305 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1306 | char dummy; |
867 | |
1307 | |
868 | *flag = 1; |
1308 | *flag = 1; |
869 | |
1309 | |
870 | #if EV_USE_EVENTFD |
1310 | #if EV_USE_EVENTFD |
871 | if (evfd >= 0) |
1311 | if (evfd >= 0) |
… | |
… | |
873 | uint64_t counter = 1; |
1313 | uint64_t counter = 1; |
874 | write (evfd, &counter, sizeof (uint64_t)); |
1314 | write (evfd, &counter, sizeof (uint64_t)); |
875 | } |
1315 | } |
876 | else |
1316 | else |
877 | #endif |
1317 | #endif |
|
|
1318 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1319 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1320 | /* so when you think this write should be a send instead, please find out */ |
|
|
1321 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1322 | /* tell me. thank you. */ |
878 | write (evpipe [1], &old_errno, 1); |
1323 | write (evpipe [1], &dummy, 1); |
879 | |
1324 | |
880 | errno = old_errno; |
1325 | errno = old_errno; |
881 | } |
1326 | } |
882 | } |
1327 | } |
883 | |
1328 | |
|
|
1329 | /* called whenever the libev signal pipe */ |
|
|
1330 | /* got some events (signal, async) */ |
884 | static void |
1331 | static void |
885 | pipecb (EV_P_ ev_io *iow, int revents) |
1332 | pipecb (EV_P_ ev_io *iow, int revents) |
886 | { |
1333 | { |
|
|
1334 | int i; |
|
|
1335 | |
887 | #if EV_USE_EVENTFD |
1336 | #if EV_USE_EVENTFD |
888 | if (evfd >= 0) |
1337 | if (evfd >= 0) |
889 | { |
1338 | { |
890 | uint64_t counter = 1; |
1339 | uint64_t counter; |
891 | read (evfd, &counter, sizeof (uint64_t)); |
1340 | read (evfd, &counter, sizeof (uint64_t)); |
892 | } |
1341 | } |
893 | else |
1342 | else |
894 | #endif |
1343 | #endif |
895 | { |
1344 | { |
896 | char dummy; |
1345 | char dummy; |
|
|
1346 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
897 | read (evpipe [0], &dummy, 1); |
1347 | read (evpipe [0], &dummy, 1); |
898 | } |
1348 | } |
899 | |
1349 | |
900 | if (gotsig && ev_is_default_loop (EV_A)) |
1350 | if (sig_pending) |
901 | { |
1351 | { |
902 | int signum; |
1352 | sig_pending = 0; |
903 | gotsig = 0; |
|
|
904 | |
1353 | |
905 | for (signum = signalmax; signum--; ) |
1354 | for (i = EV_NSIG - 1; i--; ) |
906 | if (signals [signum].gotsig) |
1355 | if (expect_false (signals [i].pending)) |
907 | ev_feed_signal_event (EV_A_ signum + 1); |
1356 | ev_feed_signal_event (EV_A_ i + 1); |
908 | } |
1357 | } |
909 | |
1358 | |
910 | #if EV_ASYNC_ENABLE |
1359 | #if EV_ASYNC_ENABLE |
911 | if (gotasync) |
1360 | if (async_pending) |
912 | { |
1361 | { |
913 | int i; |
1362 | async_pending = 0; |
914 | gotasync = 0; |
|
|
915 | |
1363 | |
916 | for (i = asynccnt; i--; ) |
1364 | for (i = asynccnt; i--; ) |
917 | if (asyncs [i]->sent) |
1365 | if (asyncs [i]->sent) |
918 | { |
1366 | { |
919 | asyncs [i]->sent = 0; |
1367 | asyncs [i]->sent = 0; |
… | |
… | |
927 | |
1375 | |
928 | static void |
1376 | static void |
929 | ev_sighandler (int signum) |
1377 | ev_sighandler (int signum) |
930 | { |
1378 | { |
931 | #if EV_MULTIPLICITY |
1379 | #if EV_MULTIPLICITY |
932 | struct ev_loop *loop = &default_loop_struct; |
1380 | EV_P = signals [signum - 1].loop; |
933 | #endif |
1381 | #endif |
934 | |
1382 | |
935 | #if _WIN32 |
1383 | #ifdef _WIN32 |
936 | signal (signum, ev_sighandler); |
1384 | signal (signum, ev_sighandler); |
937 | #endif |
1385 | #endif |
938 | |
1386 | |
939 | signals [signum - 1].gotsig = 1; |
1387 | signals [signum - 1].pending = 1; |
940 | evpipe_write (EV_A_ &gotsig); |
1388 | evpipe_write (EV_A_ &sig_pending); |
941 | } |
1389 | } |
942 | |
1390 | |
943 | void noinline |
1391 | void noinline |
944 | ev_feed_signal_event (EV_P_ int signum) |
1392 | ev_feed_signal_event (EV_P_ int signum) |
945 | { |
1393 | { |
946 | WL w; |
1394 | WL w; |
947 | |
1395 | |
|
|
1396 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1397 | return; |
|
|
1398 | |
|
|
1399 | --signum; |
|
|
1400 | |
948 | #if EV_MULTIPLICITY |
1401 | #if EV_MULTIPLICITY |
949 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1402 | /* it is permissible to try to feed a signal to the wrong loop */ |
950 | #endif |
1403 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
951 | |
1404 | |
952 | --signum; |
1405 | if (expect_false (signals [signum].loop != EV_A)) |
953 | |
|
|
954 | if (signum < 0 || signum >= signalmax) |
|
|
955 | return; |
1406 | return; |
|
|
1407 | #endif |
956 | |
1408 | |
957 | signals [signum].gotsig = 0; |
1409 | signals [signum].pending = 0; |
958 | |
1410 | |
959 | for (w = signals [signum].head; w; w = w->next) |
1411 | for (w = signals [signum].head; w; w = w->next) |
960 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1412 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
961 | } |
1413 | } |
962 | |
1414 | |
|
|
1415 | #if EV_USE_SIGNALFD |
|
|
1416 | static void |
|
|
1417 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1418 | { |
|
|
1419 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1420 | |
|
|
1421 | for (;;) |
|
|
1422 | { |
|
|
1423 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1424 | |
|
|
1425 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1426 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1427 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1428 | |
|
|
1429 | if (res < (ssize_t)sizeof (si)) |
|
|
1430 | break; |
|
|
1431 | } |
|
|
1432 | } |
|
|
1433 | #endif |
|
|
1434 | |
|
|
1435 | #endif |
|
|
1436 | |
963 | /*****************************************************************************/ |
1437 | /*****************************************************************************/ |
964 | |
1438 | |
|
|
1439 | #if EV_CHILD_ENABLE |
965 | static WL childs [EV_PID_HASHSIZE]; |
1440 | static WL childs [EV_PID_HASHSIZE]; |
966 | |
|
|
967 | #ifndef _WIN32 |
|
|
968 | |
1441 | |
969 | static ev_signal childev; |
1442 | static ev_signal childev; |
970 | |
1443 | |
971 | #ifndef WIFCONTINUED |
1444 | #ifndef WIFCONTINUED |
972 | # define WIFCONTINUED(status) 0 |
1445 | # define WIFCONTINUED(status) 0 |
973 | #endif |
1446 | #endif |
974 | |
1447 | |
975 | void inline_speed |
1448 | /* handle a single child status event */ |
|
|
1449 | inline_speed void |
976 | child_reap (EV_P_ int chain, int pid, int status) |
1450 | child_reap (EV_P_ int chain, int pid, int status) |
977 | { |
1451 | { |
978 | ev_child *w; |
1452 | ev_child *w; |
979 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1453 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
980 | |
1454 | |
981 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1455 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
982 | { |
1456 | { |
983 | if ((w->pid == pid || !w->pid) |
1457 | if ((w->pid == pid || !w->pid) |
984 | && (!traced || (w->flags & 1))) |
1458 | && (!traced || (w->flags & 1))) |
985 | { |
1459 | { |
986 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1460 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
993 | |
1467 | |
994 | #ifndef WCONTINUED |
1468 | #ifndef WCONTINUED |
995 | # define WCONTINUED 0 |
1469 | # define WCONTINUED 0 |
996 | #endif |
1470 | #endif |
997 | |
1471 | |
|
|
1472 | /* called on sigchld etc., calls waitpid */ |
998 | static void |
1473 | static void |
999 | childcb (EV_P_ ev_signal *sw, int revents) |
1474 | childcb (EV_P_ ev_signal *sw, int revents) |
1000 | { |
1475 | { |
1001 | int pid, status; |
1476 | int pid, status; |
1002 | |
1477 | |
… | |
… | |
1010 | /* make sure we are called again until all children have been reaped */ |
1485 | /* make sure we are called again until all children have been reaped */ |
1011 | /* we need to do it this way so that the callback gets called before we continue */ |
1486 | /* we need to do it this way so that the callback gets called before we continue */ |
1012 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1487 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1013 | |
1488 | |
1014 | child_reap (EV_A_ pid, pid, status); |
1489 | child_reap (EV_A_ pid, pid, status); |
1015 | if (EV_PID_HASHSIZE > 1) |
1490 | if ((EV_PID_HASHSIZE) > 1) |
1016 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1491 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1017 | } |
1492 | } |
1018 | |
1493 | |
1019 | #endif |
1494 | #endif |
1020 | |
1495 | |
1021 | /*****************************************************************************/ |
1496 | /*****************************************************************************/ |
1022 | |
1497 | |
|
|
1498 | #if EV_USE_IOCP |
|
|
1499 | # include "ev_iocp.c" |
|
|
1500 | #endif |
1023 | #if EV_USE_PORT |
1501 | #if EV_USE_PORT |
1024 | # include "ev_port.c" |
1502 | # include "ev_port.c" |
1025 | #endif |
1503 | #endif |
1026 | #if EV_USE_KQUEUE |
1504 | #if EV_USE_KQUEUE |
1027 | # include "ev_kqueue.c" |
1505 | # include "ev_kqueue.c" |
… | |
… | |
1083 | /* kqueue is borked on everything but netbsd apparently */ |
1561 | /* kqueue is borked on everything but netbsd apparently */ |
1084 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1562 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1085 | flags &= ~EVBACKEND_KQUEUE; |
1563 | flags &= ~EVBACKEND_KQUEUE; |
1086 | #endif |
1564 | #endif |
1087 | #ifdef __APPLE__ |
1565 | #ifdef __APPLE__ |
1088 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1566 | /* only select works correctly on that "unix-certified" platform */ |
1089 | flags &= ~EVBACKEND_POLL; |
1567 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1568 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1569 | #endif |
|
|
1570 | #ifdef __FreeBSD__ |
|
|
1571 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1090 | #endif |
1572 | #endif |
1091 | |
1573 | |
1092 | return flags; |
1574 | return flags; |
1093 | } |
1575 | } |
1094 | |
1576 | |
… | |
… | |
1096 | ev_embeddable_backends (void) |
1578 | ev_embeddable_backends (void) |
1097 | { |
1579 | { |
1098 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1580 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1099 | |
1581 | |
1100 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1582 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1101 | /* please fix it and tell me how to detect the fix */ |
1583 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1102 | flags &= ~EVBACKEND_EPOLL; |
1584 | flags &= ~EVBACKEND_EPOLL; |
1103 | |
1585 | |
1104 | return flags; |
1586 | return flags; |
1105 | } |
1587 | } |
1106 | |
1588 | |
1107 | unsigned int |
1589 | unsigned int |
1108 | ev_backend (EV_P) |
1590 | ev_backend (EV_P) |
1109 | { |
1591 | { |
1110 | return backend; |
1592 | return backend; |
1111 | } |
1593 | } |
1112 | |
1594 | |
|
|
1595 | #if EV_FEATURE_API |
1113 | unsigned int |
1596 | unsigned int |
1114 | ev_loop_count (EV_P) |
1597 | ev_iteration (EV_P) |
1115 | { |
1598 | { |
1116 | return loop_count; |
1599 | return loop_count; |
1117 | } |
1600 | } |
1118 | |
1601 | |
|
|
1602 | unsigned int |
|
|
1603 | ev_depth (EV_P) |
|
|
1604 | { |
|
|
1605 | return loop_depth; |
|
|
1606 | } |
|
|
1607 | |
1119 | void |
1608 | void |
1120 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1609 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1121 | { |
1610 | { |
1122 | io_blocktime = interval; |
1611 | io_blocktime = interval; |
1123 | } |
1612 | } |
… | |
… | |
1126 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1615 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1127 | { |
1616 | { |
1128 | timeout_blocktime = interval; |
1617 | timeout_blocktime = interval; |
1129 | } |
1618 | } |
1130 | |
1619 | |
|
|
1620 | void |
|
|
1621 | ev_set_userdata (EV_P_ void *data) |
|
|
1622 | { |
|
|
1623 | userdata = data; |
|
|
1624 | } |
|
|
1625 | |
|
|
1626 | void * |
|
|
1627 | ev_userdata (EV_P) |
|
|
1628 | { |
|
|
1629 | return userdata; |
|
|
1630 | } |
|
|
1631 | |
|
|
1632 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1633 | { |
|
|
1634 | invoke_cb = invoke_pending_cb; |
|
|
1635 | } |
|
|
1636 | |
|
|
1637 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1638 | { |
|
|
1639 | release_cb = release; |
|
|
1640 | acquire_cb = acquire; |
|
|
1641 | } |
|
|
1642 | #endif |
|
|
1643 | |
|
|
1644 | /* initialise a loop structure, must be zero-initialised */ |
1131 | static void noinline |
1645 | static void noinline |
1132 | loop_init (EV_P_ unsigned int flags) |
1646 | loop_init (EV_P_ unsigned int flags) |
1133 | { |
1647 | { |
1134 | if (!backend) |
1648 | if (!backend) |
1135 | { |
1649 | { |
|
|
1650 | #if EV_USE_REALTIME |
|
|
1651 | if (!have_realtime) |
|
|
1652 | { |
|
|
1653 | struct timespec ts; |
|
|
1654 | |
|
|
1655 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1656 | have_realtime = 1; |
|
|
1657 | } |
|
|
1658 | #endif |
|
|
1659 | |
1136 | #if EV_USE_MONOTONIC |
1660 | #if EV_USE_MONOTONIC |
|
|
1661 | if (!have_monotonic) |
1137 | { |
1662 | { |
1138 | struct timespec ts; |
1663 | struct timespec ts; |
|
|
1664 | |
1139 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1665 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1140 | have_monotonic = 1; |
1666 | have_monotonic = 1; |
1141 | } |
1667 | } |
1142 | #endif |
1668 | #endif |
|
|
1669 | |
|
|
1670 | /* pid check not overridable via env */ |
|
|
1671 | #ifndef _WIN32 |
|
|
1672 | if (flags & EVFLAG_FORKCHECK) |
|
|
1673 | curpid = getpid (); |
|
|
1674 | #endif |
|
|
1675 | |
|
|
1676 | if (!(flags & EVFLAG_NOENV) |
|
|
1677 | && !enable_secure () |
|
|
1678 | && getenv ("LIBEV_FLAGS")) |
|
|
1679 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1143 | |
1680 | |
1144 | ev_rt_now = ev_time (); |
1681 | ev_rt_now = ev_time (); |
1145 | mn_now = get_clock (); |
1682 | mn_now = get_clock (); |
1146 | now_floor = mn_now; |
1683 | now_floor = mn_now; |
1147 | rtmn_diff = ev_rt_now - mn_now; |
1684 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1685 | #if EV_FEATURE_API |
|
|
1686 | invoke_cb = ev_invoke_pending; |
|
|
1687 | #endif |
1148 | |
1688 | |
1149 | io_blocktime = 0.; |
1689 | io_blocktime = 0.; |
1150 | timeout_blocktime = 0.; |
1690 | timeout_blocktime = 0.; |
1151 | backend = 0; |
1691 | backend = 0; |
1152 | backend_fd = -1; |
1692 | backend_fd = -1; |
1153 | gotasync = 0; |
1693 | sig_pending = 0; |
|
|
1694 | #if EV_ASYNC_ENABLE |
|
|
1695 | async_pending = 0; |
|
|
1696 | #endif |
1154 | #if EV_USE_INOTIFY |
1697 | #if EV_USE_INOTIFY |
1155 | fs_fd = -2; |
1698 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1156 | #endif |
1699 | #endif |
1157 | |
1700 | #if EV_USE_SIGNALFD |
1158 | /* pid check not overridable via env */ |
1701 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1159 | #ifndef _WIN32 |
|
|
1160 | if (flags & EVFLAG_FORKCHECK) |
|
|
1161 | curpid = getpid (); |
|
|
1162 | #endif |
1702 | #endif |
1163 | |
1703 | |
1164 | if (!(flags & EVFLAG_NOENV) |
|
|
1165 | && !enable_secure () |
|
|
1166 | && getenv ("LIBEV_FLAGS")) |
|
|
1167 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1168 | |
|
|
1169 | if (!(flags & 0x0000ffffUL)) |
1704 | if (!(flags & 0x0000ffffU)) |
1170 | flags |= ev_recommended_backends (); |
1705 | flags |= ev_recommended_backends (); |
1171 | |
1706 | |
|
|
1707 | #if EV_USE_IOCP |
|
|
1708 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1709 | #endif |
1172 | #if EV_USE_PORT |
1710 | #if EV_USE_PORT |
1173 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1711 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1174 | #endif |
1712 | #endif |
1175 | #if EV_USE_KQUEUE |
1713 | #if EV_USE_KQUEUE |
1176 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1714 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1183 | #endif |
1721 | #endif |
1184 | #if EV_USE_SELECT |
1722 | #if EV_USE_SELECT |
1185 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1723 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1186 | #endif |
1724 | #endif |
1187 | |
1725 | |
|
|
1726 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1727 | |
|
|
1728 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1188 | ev_init (&pipeev, pipecb); |
1729 | ev_init (&pipe_w, pipecb); |
1189 | ev_set_priority (&pipeev, EV_MAXPRI); |
1730 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1731 | #endif |
1190 | } |
1732 | } |
1191 | } |
1733 | } |
1192 | |
1734 | |
|
|
1735 | /* free up a loop structure */ |
1193 | static void noinline |
1736 | static void noinline |
1194 | loop_destroy (EV_P) |
1737 | loop_destroy (EV_P) |
1195 | { |
1738 | { |
1196 | int i; |
1739 | int i; |
1197 | |
1740 | |
1198 | if (ev_is_active (&pipeev)) |
1741 | if (ev_is_active (&pipe_w)) |
1199 | { |
1742 | { |
1200 | ev_ref (EV_A); /* signal watcher */ |
1743 | /*ev_ref (EV_A);*/ |
1201 | ev_io_stop (EV_A_ &pipeev); |
1744 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1202 | |
1745 | |
1203 | #if EV_USE_EVENTFD |
1746 | #if EV_USE_EVENTFD |
1204 | if (evfd >= 0) |
1747 | if (evfd >= 0) |
1205 | close (evfd); |
1748 | close (evfd); |
1206 | #endif |
1749 | #endif |
1207 | |
1750 | |
1208 | if (evpipe [0] >= 0) |
1751 | if (evpipe [0] >= 0) |
1209 | { |
1752 | { |
1210 | close (evpipe [0]); |
1753 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1211 | close (evpipe [1]); |
1754 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1212 | } |
1755 | } |
1213 | } |
1756 | } |
|
|
1757 | |
|
|
1758 | #if EV_USE_SIGNALFD |
|
|
1759 | if (ev_is_active (&sigfd_w)) |
|
|
1760 | close (sigfd); |
|
|
1761 | #endif |
1214 | |
1762 | |
1215 | #if EV_USE_INOTIFY |
1763 | #if EV_USE_INOTIFY |
1216 | if (fs_fd >= 0) |
1764 | if (fs_fd >= 0) |
1217 | close (fs_fd); |
1765 | close (fs_fd); |
1218 | #endif |
1766 | #endif |
1219 | |
1767 | |
1220 | if (backend_fd >= 0) |
1768 | if (backend_fd >= 0) |
1221 | close (backend_fd); |
1769 | close (backend_fd); |
1222 | |
1770 | |
|
|
1771 | #if EV_USE_IOCP |
|
|
1772 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1773 | #endif |
1223 | #if EV_USE_PORT |
1774 | #if EV_USE_PORT |
1224 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1775 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1225 | #endif |
1776 | #endif |
1226 | #if EV_USE_KQUEUE |
1777 | #if EV_USE_KQUEUE |
1227 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1778 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1242 | #if EV_IDLE_ENABLE |
1793 | #if EV_IDLE_ENABLE |
1243 | array_free (idle, [i]); |
1794 | array_free (idle, [i]); |
1244 | #endif |
1795 | #endif |
1245 | } |
1796 | } |
1246 | |
1797 | |
1247 | ev_free (anfds); anfdmax = 0; |
1798 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1248 | |
1799 | |
1249 | /* have to use the microsoft-never-gets-it-right macro */ |
1800 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1801 | array_free (rfeed, EMPTY); |
1250 | array_free (fdchange, EMPTY); |
1802 | array_free (fdchange, EMPTY); |
1251 | array_free (timer, EMPTY); |
1803 | array_free (timer, EMPTY); |
1252 | #if EV_PERIODIC_ENABLE |
1804 | #if EV_PERIODIC_ENABLE |
1253 | array_free (periodic, EMPTY); |
1805 | array_free (periodic, EMPTY); |
1254 | #endif |
1806 | #endif |
… | |
… | |
1262 | #endif |
1814 | #endif |
1263 | |
1815 | |
1264 | backend = 0; |
1816 | backend = 0; |
1265 | } |
1817 | } |
1266 | |
1818 | |
|
|
1819 | #if EV_USE_INOTIFY |
1267 | void inline_size infy_fork (EV_P); |
1820 | inline_size void infy_fork (EV_P); |
|
|
1821 | #endif |
1268 | |
1822 | |
1269 | void inline_size |
1823 | inline_size void |
1270 | loop_fork (EV_P) |
1824 | loop_fork (EV_P) |
1271 | { |
1825 | { |
1272 | #if EV_USE_PORT |
1826 | #if EV_USE_PORT |
1273 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1827 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1274 | #endif |
1828 | #endif |
… | |
… | |
1280 | #endif |
1834 | #endif |
1281 | #if EV_USE_INOTIFY |
1835 | #if EV_USE_INOTIFY |
1282 | infy_fork (EV_A); |
1836 | infy_fork (EV_A); |
1283 | #endif |
1837 | #endif |
1284 | |
1838 | |
1285 | if (ev_is_active (&pipeev)) |
1839 | if (ev_is_active (&pipe_w)) |
1286 | { |
1840 | { |
1287 | /* this "locks" the handlers against writing to the pipe */ |
1841 | /* this "locks" the handlers against writing to the pipe */ |
1288 | /* while we modify the fd vars */ |
1842 | /* while we modify the fd vars */ |
1289 | gotsig = 1; |
1843 | sig_pending = 1; |
1290 | #if EV_ASYNC_ENABLE |
1844 | #if EV_ASYNC_ENABLE |
1291 | gotasync = 1; |
1845 | async_pending = 1; |
1292 | #endif |
1846 | #endif |
1293 | |
1847 | |
1294 | ev_ref (EV_A); |
1848 | ev_ref (EV_A); |
1295 | ev_io_stop (EV_A_ &pipeev); |
1849 | ev_io_stop (EV_A_ &pipe_w); |
1296 | |
1850 | |
1297 | #if EV_USE_EVENTFD |
1851 | #if EV_USE_EVENTFD |
1298 | if (evfd >= 0) |
1852 | if (evfd >= 0) |
1299 | close (evfd); |
1853 | close (evfd); |
1300 | #endif |
1854 | #endif |
1301 | |
1855 | |
1302 | if (evpipe [0] >= 0) |
1856 | if (evpipe [0] >= 0) |
1303 | { |
1857 | { |
1304 | close (evpipe [0]); |
1858 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1305 | close (evpipe [1]); |
1859 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1306 | } |
1860 | } |
1307 | |
1861 | |
|
|
1862 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1308 | evpipe_init (EV_A); |
1863 | evpipe_init (EV_A); |
1309 | /* now iterate over everything, in case we missed something */ |
1864 | /* now iterate over everything, in case we missed something */ |
1310 | pipecb (EV_A_ &pipeev, EV_READ); |
1865 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1866 | #endif |
1311 | } |
1867 | } |
1312 | |
1868 | |
1313 | postfork = 0; |
1869 | postfork = 0; |
1314 | } |
1870 | } |
1315 | |
1871 | |
1316 | #if EV_MULTIPLICITY |
1872 | #if EV_MULTIPLICITY |
|
|
1873 | |
1317 | struct ev_loop * |
1874 | struct ev_loop * |
1318 | ev_loop_new (unsigned int flags) |
1875 | ev_loop_new (unsigned int flags) |
1319 | { |
1876 | { |
1320 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1877 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1321 | |
1878 | |
1322 | memset (loop, 0, sizeof (struct ev_loop)); |
1879 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1323 | |
|
|
1324 | loop_init (EV_A_ flags); |
1880 | loop_init (EV_A_ flags); |
1325 | |
1881 | |
1326 | if (ev_backend (EV_A)) |
1882 | if (ev_backend (EV_A)) |
1327 | return loop; |
1883 | return EV_A; |
1328 | |
1884 | |
1329 | return 0; |
1885 | return 0; |
1330 | } |
1886 | } |
1331 | |
1887 | |
1332 | void |
1888 | void |
… | |
… | |
1339 | void |
1895 | void |
1340 | ev_loop_fork (EV_P) |
1896 | ev_loop_fork (EV_P) |
1341 | { |
1897 | { |
1342 | postfork = 1; /* must be in line with ev_default_fork */ |
1898 | postfork = 1; /* must be in line with ev_default_fork */ |
1343 | } |
1899 | } |
|
|
1900 | #endif /* multiplicity */ |
1344 | |
1901 | |
|
|
1902 | #if EV_VERIFY |
|
|
1903 | static void noinline |
|
|
1904 | verify_watcher (EV_P_ W w) |
|
|
1905 | { |
|
|
1906 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1907 | |
|
|
1908 | if (w->pending) |
|
|
1909 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | static void noinline |
|
|
1913 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1914 | { |
|
|
1915 | int i; |
|
|
1916 | |
|
|
1917 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1918 | { |
|
|
1919 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1920 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1921 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1922 | |
|
|
1923 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1924 | } |
|
|
1925 | } |
|
|
1926 | |
|
|
1927 | static void noinline |
|
|
1928 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1929 | { |
|
|
1930 | while (cnt--) |
|
|
1931 | { |
|
|
1932 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1933 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1934 | } |
|
|
1935 | } |
|
|
1936 | #endif |
|
|
1937 | |
|
|
1938 | #if EV_FEATURE_API |
|
|
1939 | void |
|
|
1940 | ev_verify (EV_P) |
|
|
1941 | { |
|
|
1942 | #if EV_VERIFY |
|
|
1943 | int i; |
|
|
1944 | WL w; |
|
|
1945 | |
|
|
1946 | assert (activecnt >= -1); |
|
|
1947 | |
|
|
1948 | assert (fdchangemax >= fdchangecnt); |
|
|
1949 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1950 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1951 | |
|
|
1952 | assert (anfdmax >= 0); |
|
|
1953 | for (i = 0; i < anfdmax; ++i) |
|
|
1954 | for (w = anfds [i].head; w; w = w->next) |
|
|
1955 | { |
|
|
1956 | verify_watcher (EV_A_ (W)w); |
|
|
1957 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1958 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1959 | } |
|
|
1960 | |
|
|
1961 | assert (timermax >= timercnt); |
|
|
1962 | verify_heap (EV_A_ timers, timercnt); |
|
|
1963 | |
|
|
1964 | #if EV_PERIODIC_ENABLE |
|
|
1965 | assert (periodicmax >= periodiccnt); |
|
|
1966 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1967 | #endif |
|
|
1968 | |
|
|
1969 | for (i = NUMPRI; i--; ) |
|
|
1970 | { |
|
|
1971 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1972 | #if EV_IDLE_ENABLE |
|
|
1973 | assert (idleall >= 0); |
|
|
1974 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1975 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1976 | #endif |
|
|
1977 | } |
|
|
1978 | |
|
|
1979 | #if EV_FORK_ENABLE |
|
|
1980 | assert (forkmax >= forkcnt); |
|
|
1981 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1982 | #endif |
|
|
1983 | |
|
|
1984 | #if EV_ASYNC_ENABLE |
|
|
1985 | assert (asyncmax >= asynccnt); |
|
|
1986 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1987 | #endif |
|
|
1988 | |
|
|
1989 | #if EV_PREPARE_ENABLE |
|
|
1990 | assert (preparemax >= preparecnt); |
|
|
1991 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1992 | #endif |
|
|
1993 | |
|
|
1994 | #if EV_CHECK_ENABLE |
|
|
1995 | assert (checkmax >= checkcnt); |
|
|
1996 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1997 | #endif |
|
|
1998 | |
|
|
1999 | # if 0 |
|
|
2000 | #if EV_CHILD_ENABLE |
|
|
2001 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2002 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2003 | #endif |
|
|
2004 | # endif |
|
|
2005 | #endif |
|
|
2006 | } |
1345 | #endif |
2007 | #endif |
1346 | |
2008 | |
1347 | #if EV_MULTIPLICITY |
2009 | #if EV_MULTIPLICITY |
1348 | struct ev_loop * |
2010 | struct ev_loop * |
1349 | ev_default_loop_init (unsigned int flags) |
2011 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1353 | #endif |
2015 | #endif |
1354 | { |
2016 | { |
1355 | if (!ev_default_loop_ptr) |
2017 | if (!ev_default_loop_ptr) |
1356 | { |
2018 | { |
1357 | #if EV_MULTIPLICITY |
2019 | #if EV_MULTIPLICITY |
1358 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2020 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1359 | #else |
2021 | #else |
1360 | ev_default_loop_ptr = 1; |
2022 | ev_default_loop_ptr = 1; |
1361 | #endif |
2023 | #endif |
1362 | |
2024 | |
1363 | loop_init (EV_A_ flags); |
2025 | loop_init (EV_A_ flags); |
1364 | |
2026 | |
1365 | if (ev_backend (EV_A)) |
2027 | if (ev_backend (EV_A)) |
1366 | { |
2028 | { |
1367 | #ifndef _WIN32 |
2029 | #if EV_CHILD_ENABLE |
1368 | ev_signal_init (&childev, childcb, SIGCHLD); |
2030 | ev_signal_init (&childev, childcb, SIGCHLD); |
1369 | ev_set_priority (&childev, EV_MAXPRI); |
2031 | ev_set_priority (&childev, EV_MAXPRI); |
1370 | ev_signal_start (EV_A_ &childev); |
2032 | ev_signal_start (EV_A_ &childev); |
1371 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2033 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1372 | #endif |
2034 | #endif |
… | |
… | |
1380 | |
2042 | |
1381 | void |
2043 | void |
1382 | ev_default_destroy (void) |
2044 | ev_default_destroy (void) |
1383 | { |
2045 | { |
1384 | #if EV_MULTIPLICITY |
2046 | #if EV_MULTIPLICITY |
1385 | struct ev_loop *loop = ev_default_loop_ptr; |
2047 | EV_P = ev_default_loop_ptr; |
1386 | #endif |
2048 | #endif |
1387 | |
2049 | |
1388 | #ifndef _WIN32 |
2050 | ev_default_loop_ptr = 0; |
|
|
2051 | |
|
|
2052 | #if EV_CHILD_ENABLE |
1389 | ev_ref (EV_A); /* child watcher */ |
2053 | ev_ref (EV_A); /* child watcher */ |
1390 | ev_signal_stop (EV_A_ &childev); |
2054 | ev_signal_stop (EV_A_ &childev); |
1391 | #endif |
2055 | #endif |
1392 | |
2056 | |
1393 | loop_destroy (EV_A); |
2057 | loop_destroy (EV_A); |
… | |
… | |
1395 | |
2059 | |
1396 | void |
2060 | void |
1397 | ev_default_fork (void) |
2061 | ev_default_fork (void) |
1398 | { |
2062 | { |
1399 | #if EV_MULTIPLICITY |
2063 | #if EV_MULTIPLICITY |
1400 | struct ev_loop *loop = ev_default_loop_ptr; |
2064 | EV_P = ev_default_loop_ptr; |
1401 | #endif |
2065 | #endif |
1402 | |
2066 | |
1403 | if (backend) |
|
|
1404 | postfork = 1; /* must be in line with ev_loop_fork */ |
2067 | postfork = 1; /* must be in line with ev_loop_fork */ |
1405 | } |
2068 | } |
1406 | |
2069 | |
1407 | /*****************************************************************************/ |
2070 | /*****************************************************************************/ |
1408 | |
2071 | |
1409 | void |
2072 | void |
1410 | ev_invoke (EV_P_ void *w, int revents) |
2073 | ev_invoke (EV_P_ void *w, int revents) |
1411 | { |
2074 | { |
1412 | EV_CB_INVOKE ((W)w, revents); |
2075 | EV_CB_INVOKE ((W)w, revents); |
1413 | } |
2076 | } |
1414 | |
2077 | |
1415 | void inline_speed |
2078 | unsigned int |
1416 | call_pending (EV_P) |
2079 | ev_pending_count (EV_P) |
|
|
2080 | { |
|
|
2081 | int pri; |
|
|
2082 | unsigned int count = 0; |
|
|
2083 | |
|
|
2084 | for (pri = NUMPRI; pri--; ) |
|
|
2085 | count += pendingcnt [pri]; |
|
|
2086 | |
|
|
2087 | return count; |
|
|
2088 | } |
|
|
2089 | |
|
|
2090 | void noinline |
|
|
2091 | ev_invoke_pending (EV_P) |
1417 | { |
2092 | { |
1418 | int pri; |
2093 | int pri; |
1419 | |
2094 | |
1420 | for (pri = NUMPRI; pri--; ) |
2095 | for (pri = NUMPRI; pri--; ) |
1421 | while (pendingcnt [pri]) |
2096 | while (pendingcnt [pri]) |
1422 | { |
2097 | { |
1423 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2098 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1424 | |
2099 | |
1425 | if (expect_true (p->w)) |
|
|
1426 | { |
|
|
1427 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2100 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2101 | /* ^ this is no longer true, as pending_w could be here */ |
1428 | |
2102 | |
1429 | p->w->pending = 0; |
2103 | p->w->pending = 0; |
1430 | EV_CB_INVOKE (p->w, p->events); |
2104 | EV_CB_INVOKE (p->w, p->events); |
1431 | } |
2105 | EV_FREQUENT_CHECK; |
1432 | } |
2106 | } |
1433 | } |
2107 | } |
1434 | |
2108 | |
1435 | void inline_size |
|
|
1436 | timers_reify (EV_P) |
|
|
1437 | { |
|
|
1438 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1439 | { |
|
|
1440 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1441 | |
|
|
1442 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1443 | |
|
|
1444 | /* first reschedule or stop timer */ |
|
|
1445 | if (w->repeat) |
|
|
1446 | { |
|
|
1447 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1448 | |
|
|
1449 | ((WT)w)->at += w->repeat; |
|
|
1450 | if (((WT)w)->at < mn_now) |
|
|
1451 | ((WT)w)->at = mn_now; |
|
|
1452 | |
|
|
1453 | downheap (timers, timercnt, 0); |
|
|
1454 | } |
|
|
1455 | else |
|
|
1456 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1457 | |
|
|
1458 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1459 | } |
|
|
1460 | } |
|
|
1461 | |
|
|
1462 | #if EV_PERIODIC_ENABLE |
|
|
1463 | void inline_size |
|
|
1464 | periodics_reify (EV_P) |
|
|
1465 | { |
|
|
1466 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1467 | { |
|
|
1468 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1469 | |
|
|
1470 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1471 | |
|
|
1472 | /* first reschedule or stop timer */ |
|
|
1473 | if (w->reschedule_cb) |
|
|
1474 | { |
|
|
1475 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1476 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1477 | downheap (periodics, periodiccnt, 0); |
|
|
1478 | } |
|
|
1479 | else if (w->interval) |
|
|
1480 | { |
|
|
1481 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1482 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1483 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1484 | downheap (periodics, periodiccnt, 0); |
|
|
1485 | } |
|
|
1486 | else |
|
|
1487 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1488 | |
|
|
1489 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1490 | } |
|
|
1491 | } |
|
|
1492 | |
|
|
1493 | static void noinline |
|
|
1494 | periodics_reschedule (EV_P) |
|
|
1495 | { |
|
|
1496 | int i; |
|
|
1497 | |
|
|
1498 | /* adjust periodics after time jump */ |
|
|
1499 | for (i = 0; i < periodiccnt; ++i) |
|
|
1500 | { |
|
|
1501 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1502 | |
|
|
1503 | if (w->reschedule_cb) |
|
|
1504 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1505 | else if (w->interval) |
|
|
1506 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | /* now rebuild the heap */ |
|
|
1510 | for (i = periodiccnt >> 1; i--; ) |
|
|
1511 | downheap (periodics, periodiccnt, i); |
|
|
1512 | } |
|
|
1513 | #endif |
|
|
1514 | |
|
|
1515 | #if EV_IDLE_ENABLE |
2109 | #if EV_IDLE_ENABLE |
1516 | void inline_size |
2110 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2111 | /* only when higher priorities are idle" logic */ |
|
|
2112 | inline_size void |
1517 | idle_reify (EV_P) |
2113 | idle_reify (EV_P) |
1518 | { |
2114 | { |
1519 | if (expect_false (idleall)) |
2115 | if (expect_false (idleall)) |
1520 | { |
2116 | { |
1521 | int pri; |
2117 | int pri; |
… | |
… | |
1533 | } |
2129 | } |
1534 | } |
2130 | } |
1535 | } |
2131 | } |
1536 | #endif |
2132 | #endif |
1537 | |
2133 | |
1538 | void inline_speed |
2134 | /* make timers pending */ |
|
|
2135 | inline_size void |
|
|
2136 | timers_reify (EV_P) |
|
|
2137 | { |
|
|
2138 | EV_FREQUENT_CHECK; |
|
|
2139 | |
|
|
2140 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2141 | { |
|
|
2142 | do |
|
|
2143 | { |
|
|
2144 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2145 | |
|
|
2146 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2147 | |
|
|
2148 | /* first reschedule or stop timer */ |
|
|
2149 | if (w->repeat) |
|
|
2150 | { |
|
|
2151 | ev_at (w) += w->repeat; |
|
|
2152 | if (ev_at (w) < mn_now) |
|
|
2153 | ev_at (w) = mn_now; |
|
|
2154 | |
|
|
2155 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2156 | |
|
|
2157 | ANHE_at_cache (timers [HEAP0]); |
|
|
2158 | downheap (timers, timercnt, HEAP0); |
|
|
2159 | } |
|
|
2160 | else |
|
|
2161 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2162 | |
|
|
2163 | EV_FREQUENT_CHECK; |
|
|
2164 | feed_reverse (EV_A_ (W)w); |
|
|
2165 | } |
|
|
2166 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2167 | |
|
|
2168 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2169 | } |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | #if EV_PERIODIC_ENABLE |
|
|
2173 | /* make periodics pending */ |
|
|
2174 | inline_size void |
|
|
2175 | periodics_reify (EV_P) |
|
|
2176 | { |
|
|
2177 | EV_FREQUENT_CHECK; |
|
|
2178 | |
|
|
2179 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2180 | { |
|
|
2181 | int feed_count = 0; |
|
|
2182 | |
|
|
2183 | do |
|
|
2184 | { |
|
|
2185 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2186 | |
|
|
2187 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2188 | |
|
|
2189 | /* first reschedule or stop timer */ |
|
|
2190 | if (w->reschedule_cb) |
|
|
2191 | { |
|
|
2192 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2193 | |
|
|
2194 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2195 | |
|
|
2196 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2197 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2198 | } |
|
|
2199 | else if (w->interval) |
|
|
2200 | { |
|
|
2201 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2202 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2203 | /* this might happen because of floating point inexactness */ |
|
|
2204 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2205 | { |
|
|
2206 | ev_at (w) += w->interval; |
|
|
2207 | |
|
|
2208 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2209 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2210 | /* has effectively asked to get triggered more often than possible */ |
|
|
2211 | if (ev_at (w) < ev_rt_now) |
|
|
2212 | ev_at (w) = ev_rt_now; |
|
|
2213 | } |
|
|
2214 | |
|
|
2215 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2216 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2217 | } |
|
|
2218 | else |
|
|
2219 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2220 | |
|
|
2221 | EV_FREQUENT_CHECK; |
|
|
2222 | feed_reverse (EV_A_ (W)w); |
|
|
2223 | } |
|
|
2224 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2225 | |
|
|
2226 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2227 | } |
|
|
2228 | } |
|
|
2229 | |
|
|
2230 | /* simply recalculate all periodics */ |
|
|
2231 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2232 | static void noinline |
|
|
2233 | periodics_reschedule (EV_P) |
|
|
2234 | { |
|
|
2235 | int i; |
|
|
2236 | |
|
|
2237 | /* adjust periodics after time jump */ |
|
|
2238 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2239 | { |
|
|
2240 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2241 | |
|
|
2242 | if (w->reschedule_cb) |
|
|
2243 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2244 | else if (w->interval) |
|
|
2245 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2246 | |
|
|
2247 | ANHE_at_cache (periodics [i]); |
|
|
2248 | } |
|
|
2249 | |
|
|
2250 | reheap (periodics, periodiccnt); |
|
|
2251 | } |
|
|
2252 | #endif |
|
|
2253 | |
|
|
2254 | /* adjust all timers by a given offset */ |
|
|
2255 | static void noinline |
|
|
2256 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2257 | { |
|
|
2258 | int i; |
|
|
2259 | |
|
|
2260 | for (i = 0; i < timercnt; ++i) |
|
|
2261 | { |
|
|
2262 | ANHE *he = timers + i + HEAP0; |
|
|
2263 | ANHE_w (*he)->at += adjust; |
|
|
2264 | ANHE_at_cache (*he); |
|
|
2265 | } |
|
|
2266 | } |
|
|
2267 | |
|
|
2268 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2269 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2270 | inline_speed void |
1539 | time_update (EV_P_ ev_tstamp max_block) |
2271 | time_update (EV_P_ ev_tstamp max_block) |
1540 | { |
2272 | { |
1541 | int i; |
|
|
1542 | |
|
|
1543 | #if EV_USE_MONOTONIC |
2273 | #if EV_USE_MONOTONIC |
1544 | if (expect_true (have_monotonic)) |
2274 | if (expect_true (have_monotonic)) |
1545 | { |
2275 | { |
|
|
2276 | int i; |
1546 | ev_tstamp odiff = rtmn_diff; |
2277 | ev_tstamp odiff = rtmn_diff; |
1547 | |
2278 | |
1548 | mn_now = get_clock (); |
2279 | mn_now = get_clock (); |
1549 | |
2280 | |
1550 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2281 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1568 | */ |
2299 | */ |
1569 | for (i = 4; --i; ) |
2300 | for (i = 4; --i; ) |
1570 | { |
2301 | { |
1571 | rtmn_diff = ev_rt_now - mn_now; |
2302 | rtmn_diff = ev_rt_now - mn_now; |
1572 | |
2303 | |
1573 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2304 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1574 | return; /* all is well */ |
2305 | return; /* all is well */ |
1575 | |
2306 | |
1576 | ev_rt_now = ev_time (); |
2307 | ev_rt_now = ev_time (); |
1577 | mn_now = get_clock (); |
2308 | mn_now = get_clock (); |
1578 | now_floor = mn_now; |
2309 | now_floor = mn_now; |
1579 | } |
2310 | } |
1580 | |
2311 | |
|
|
2312 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2313 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1581 | # if EV_PERIODIC_ENABLE |
2314 | # if EV_PERIODIC_ENABLE |
1582 | periodics_reschedule (EV_A); |
2315 | periodics_reschedule (EV_A); |
1583 | # endif |
2316 | # endif |
1584 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1585 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1586 | } |
2317 | } |
1587 | else |
2318 | else |
1588 | #endif |
2319 | #endif |
1589 | { |
2320 | { |
1590 | ev_rt_now = ev_time (); |
2321 | ev_rt_now = ev_time (); |
1591 | |
2322 | |
1592 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2323 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1593 | { |
2324 | { |
|
|
2325 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2326 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1594 | #if EV_PERIODIC_ENABLE |
2327 | #if EV_PERIODIC_ENABLE |
1595 | periodics_reschedule (EV_A); |
2328 | periodics_reschedule (EV_A); |
1596 | #endif |
2329 | #endif |
1597 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1598 | for (i = 0; i < timercnt; ++i) |
|
|
1599 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1600 | } |
2330 | } |
1601 | |
2331 | |
1602 | mn_now = ev_rt_now; |
2332 | mn_now = ev_rt_now; |
1603 | } |
2333 | } |
1604 | } |
2334 | } |
1605 | |
2335 | |
1606 | void |
2336 | void |
1607 | ev_ref (EV_P) |
|
|
1608 | { |
|
|
1609 | ++activecnt; |
|
|
1610 | } |
|
|
1611 | |
|
|
1612 | void |
|
|
1613 | ev_unref (EV_P) |
|
|
1614 | { |
|
|
1615 | --activecnt; |
|
|
1616 | } |
|
|
1617 | |
|
|
1618 | static int loop_done; |
|
|
1619 | |
|
|
1620 | void |
|
|
1621 | ev_loop (EV_P_ int flags) |
2337 | ev_run (EV_P_ int flags) |
1622 | { |
2338 | { |
|
|
2339 | #if EV_FEATURE_API |
|
|
2340 | ++loop_depth; |
|
|
2341 | #endif |
|
|
2342 | |
|
|
2343 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2344 | |
1623 | loop_done = EVUNLOOP_CANCEL; |
2345 | loop_done = EVBREAK_CANCEL; |
1624 | |
2346 | |
1625 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2347 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1626 | |
2348 | |
1627 | do |
2349 | do |
1628 | { |
2350 | { |
|
|
2351 | #if EV_VERIFY >= 2 |
|
|
2352 | ev_verify (EV_A); |
|
|
2353 | #endif |
|
|
2354 | |
1629 | #ifndef _WIN32 |
2355 | #ifndef _WIN32 |
1630 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2356 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1631 | if (expect_false (getpid () != curpid)) |
2357 | if (expect_false (getpid () != curpid)) |
1632 | { |
2358 | { |
1633 | curpid = getpid (); |
2359 | curpid = getpid (); |
… | |
… | |
1639 | /* we might have forked, so queue fork handlers */ |
2365 | /* we might have forked, so queue fork handlers */ |
1640 | if (expect_false (postfork)) |
2366 | if (expect_false (postfork)) |
1641 | if (forkcnt) |
2367 | if (forkcnt) |
1642 | { |
2368 | { |
1643 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2369 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1644 | call_pending (EV_A); |
2370 | EV_INVOKE_PENDING; |
1645 | } |
2371 | } |
1646 | #endif |
2372 | #endif |
1647 | |
2373 | |
|
|
2374 | #if EV_PREPARE_ENABLE |
1648 | /* queue prepare watchers (and execute them) */ |
2375 | /* queue prepare watchers (and execute them) */ |
1649 | if (expect_false (preparecnt)) |
2376 | if (expect_false (preparecnt)) |
1650 | { |
2377 | { |
1651 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2378 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1652 | call_pending (EV_A); |
2379 | EV_INVOKE_PENDING; |
1653 | } |
2380 | } |
|
|
2381 | #endif |
1654 | |
2382 | |
1655 | if (expect_false (!activecnt)) |
2383 | if (expect_false (loop_done)) |
1656 | break; |
2384 | break; |
1657 | |
2385 | |
1658 | /* we might have forked, so reify kernel state if necessary */ |
2386 | /* we might have forked, so reify kernel state if necessary */ |
1659 | if (expect_false (postfork)) |
2387 | if (expect_false (postfork)) |
1660 | loop_fork (EV_A); |
2388 | loop_fork (EV_A); |
… | |
… | |
1665 | /* calculate blocking time */ |
2393 | /* calculate blocking time */ |
1666 | { |
2394 | { |
1667 | ev_tstamp waittime = 0.; |
2395 | ev_tstamp waittime = 0.; |
1668 | ev_tstamp sleeptime = 0.; |
2396 | ev_tstamp sleeptime = 0.; |
1669 | |
2397 | |
|
|
2398 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2399 | ev_tstamp prev_mn_now = mn_now; |
|
|
2400 | |
|
|
2401 | /* update time to cancel out callback processing overhead */ |
|
|
2402 | time_update (EV_A_ 1e100); |
|
|
2403 | |
1670 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2404 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
1671 | { |
2405 | { |
1672 | /* update time to cancel out callback processing overhead */ |
|
|
1673 | time_update (EV_A_ 1e100); |
|
|
1674 | |
|
|
1675 | waittime = MAX_BLOCKTIME; |
2406 | waittime = MAX_BLOCKTIME; |
1676 | |
2407 | |
1677 | if (timercnt) |
2408 | if (timercnt) |
1678 | { |
2409 | { |
1679 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2410 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1680 | if (waittime > to) waittime = to; |
2411 | if (waittime > to) waittime = to; |
1681 | } |
2412 | } |
1682 | |
2413 | |
1683 | #if EV_PERIODIC_ENABLE |
2414 | #if EV_PERIODIC_ENABLE |
1684 | if (periodiccnt) |
2415 | if (periodiccnt) |
1685 | { |
2416 | { |
1686 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2417 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1687 | if (waittime > to) waittime = to; |
2418 | if (waittime > to) waittime = to; |
1688 | } |
2419 | } |
1689 | #endif |
2420 | #endif |
1690 | |
2421 | |
|
|
2422 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1691 | if (expect_false (waittime < timeout_blocktime)) |
2423 | if (expect_false (waittime < timeout_blocktime)) |
1692 | waittime = timeout_blocktime; |
2424 | waittime = timeout_blocktime; |
1693 | |
2425 | |
1694 | sleeptime = waittime - backend_fudge; |
2426 | /* extra check because io_blocktime is commonly 0 */ |
1695 | |
|
|
1696 | if (expect_true (sleeptime > io_blocktime)) |
2427 | if (expect_false (io_blocktime)) |
1697 | sleeptime = io_blocktime; |
|
|
1698 | |
|
|
1699 | if (sleeptime) |
|
|
1700 | { |
2428 | { |
|
|
2429 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2430 | |
|
|
2431 | if (sleeptime > waittime - backend_fudge) |
|
|
2432 | sleeptime = waittime - backend_fudge; |
|
|
2433 | |
|
|
2434 | if (expect_true (sleeptime > 0.)) |
|
|
2435 | { |
1701 | ev_sleep (sleeptime); |
2436 | ev_sleep (sleeptime); |
1702 | waittime -= sleeptime; |
2437 | waittime -= sleeptime; |
|
|
2438 | } |
1703 | } |
2439 | } |
1704 | } |
2440 | } |
1705 | |
2441 | |
|
|
2442 | #if EV_FEATURE_API |
1706 | ++loop_count; |
2443 | ++loop_count; |
|
|
2444 | #endif |
|
|
2445 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1707 | backend_poll (EV_A_ waittime); |
2446 | backend_poll (EV_A_ waittime); |
|
|
2447 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
1708 | |
2448 | |
1709 | /* update ev_rt_now, do magic */ |
2449 | /* update ev_rt_now, do magic */ |
1710 | time_update (EV_A_ waittime + sleeptime); |
2450 | time_update (EV_A_ waittime + sleeptime); |
1711 | } |
2451 | } |
1712 | |
2452 | |
… | |
… | |
1719 | #if EV_IDLE_ENABLE |
2459 | #if EV_IDLE_ENABLE |
1720 | /* queue idle watchers unless other events are pending */ |
2460 | /* queue idle watchers unless other events are pending */ |
1721 | idle_reify (EV_A); |
2461 | idle_reify (EV_A); |
1722 | #endif |
2462 | #endif |
1723 | |
2463 | |
|
|
2464 | #if EV_CHECK_ENABLE |
1724 | /* queue check watchers, to be executed first */ |
2465 | /* queue check watchers, to be executed first */ |
1725 | if (expect_false (checkcnt)) |
2466 | if (expect_false (checkcnt)) |
1726 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2467 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2468 | #endif |
1727 | |
2469 | |
1728 | call_pending (EV_A); |
2470 | EV_INVOKE_PENDING; |
1729 | } |
2471 | } |
1730 | while (expect_true ( |
2472 | while (expect_true ( |
1731 | activecnt |
2473 | activecnt |
1732 | && !loop_done |
2474 | && !loop_done |
1733 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2475 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
1734 | )); |
2476 | )); |
1735 | |
2477 | |
1736 | if (loop_done == EVUNLOOP_ONE) |
2478 | if (loop_done == EVBREAK_ONE) |
1737 | loop_done = EVUNLOOP_CANCEL; |
2479 | loop_done = EVBREAK_CANCEL; |
1738 | } |
|
|
1739 | |
2480 | |
|
|
2481 | #if EV_FEATURE_API |
|
|
2482 | --loop_depth; |
|
|
2483 | #endif |
|
|
2484 | } |
|
|
2485 | |
1740 | void |
2486 | void |
1741 | ev_unloop (EV_P_ int how) |
2487 | ev_break (EV_P_ int how) |
1742 | { |
2488 | { |
1743 | loop_done = how; |
2489 | loop_done = how; |
1744 | } |
2490 | } |
1745 | |
2491 | |
|
|
2492 | void |
|
|
2493 | ev_ref (EV_P) |
|
|
2494 | { |
|
|
2495 | ++activecnt; |
|
|
2496 | } |
|
|
2497 | |
|
|
2498 | void |
|
|
2499 | ev_unref (EV_P) |
|
|
2500 | { |
|
|
2501 | --activecnt; |
|
|
2502 | } |
|
|
2503 | |
|
|
2504 | void |
|
|
2505 | ev_now_update (EV_P) |
|
|
2506 | { |
|
|
2507 | time_update (EV_A_ 1e100); |
|
|
2508 | } |
|
|
2509 | |
|
|
2510 | void |
|
|
2511 | ev_suspend (EV_P) |
|
|
2512 | { |
|
|
2513 | ev_now_update (EV_A); |
|
|
2514 | } |
|
|
2515 | |
|
|
2516 | void |
|
|
2517 | ev_resume (EV_P) |
|
|
2518 | { |
|
|
2519 | ev_tstamp mn_prev = mn_now; |
|
|
2520 | |
|
|
2521 | ev_now_update (EV_A); |
|
|
2522 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2523 | #if EV_PERIODIC_ENABLE |
|
|
2524 | /* TODO: really do this? */ |
|
|
2525 | periodics_reschedule (EV_A); |
|
|
2526 | #endif |
|
|
2527 | } |
|
|
2528 | |
1746 | /*****************************************************************************/ |
2529 | /*****************************************************************************/ |
|
|
2530 | /* singly-linked list management, used when the expected list length is short */ |
1747 | |
2531 | |
1748 | void inline_size |
2532 | inline_size void |
1749 | wlist_add (WL *head, WL elem) |
2533 | wlist_add (WL *head, WL elem) |
1750 | { |
2534 | { |
1751 | elem->next = *head; |
2535 | elem->next = *head; |
1752 | *head = elem; |
2536 | *head = elem; |
1753 | } |
2537 | } |
1754 | |
2538 | |
1755 | void inline_size |
2539 | inline_size void |
1756 | wlist_del (WL *head, WL elem) |
2540 | wlist_del (WL *head, WL elem) |
1757 | { |
2541 | { |
1758 | while (*head) |
2542 | while (*head) |
1759 | { |
2543 | { |
1760 | if (*head == elem) |
2544 | if (expect_true (*head == elem)) |
1761 | { |
2545 | { |
1762 | *head = elem->next; |
2546 | *head = elem->next; |
1763 | return; |
2547 | break; |
1764 | } |
2548 | } |
1765 | |
2549 | |
1766 | head = &(*head)->next; |
2550 | head = &(*head)->next; |
1767 | } |
2551 | } |
1768 | } |
2552 | } |
1769 | |
2553 | |
1770 | void inline_speed |
2554 | /* internal, faster, version of ev_clear_pending */ |
|
|
2555 | inline_speed void |
1771 | clear_pending (EV_P_ W w) |
2556 | clear_pending (EV_P_ W w) |
1772 | { |
2557 | { |
1773 | if (w->pending) |
2558 | if (w->pending) |
1774 | { |
2559 | { |
1775 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2560 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1776 | w->pending = 0; |
2561 | w->pending = 0; |
1777 | } |
2562 | } |
1778 | } |
2563 | } |
1779 | |
2564 | |
1780 | int |
2565 | int |
… | |
… | |
1784 | int pending = w_->pending; |
2569 | int pending = w_->pending; |
1785 | |
2570 | |
1786 | if (expect_true (pending)) |
2571 | if (expect_true (pending)) |
1787 | { |
2572 | { |
1788 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2573 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2574 | p->w = (W)&pending_w; |
1789 | w_->pending = 0; |
2575 | w_->pending = 0; |
1790 | p->w = 0; |
|
|
1791 | return p->events; |
2576 | return p->events; |
1792 | } |
2577 | } |
1793 | else |
2578 | else |
1794 | return 0; |
2579 | return 0; |
1795 | } |
2580 | } |
1796 | |
2581 | |
1797 | void inline_size |
2582 | inline_size void |
1798 | pri_adjust (EV_P_ W w) |
2583 | pri_adjust (EV_P_ W w) |
1799 | { |
2584 | { |
1800 | int pri = w->priority; |
2585 | int pri = ev_priority (w); |
1801 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2586 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1802 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2587 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1803 | w->priority = pri; |
2588 | ev_set_priority (w, pri); |
1804 | } |
2589 | } |
1805 | |
2590 | |
1806 | void inline_speed |
2591 | inline_speed void |
1807 | ev_start (EV_P_ W w, int active) |
2592 | ev_start (EV_P_ W w, int active) |
1808 | { |
2593 | { |
1809 | pri_adjust (EV_A_ w); |
2594 | pri_adjust (EV_A_ w); |
1810 | w->active = active; |
2595 | w->active = active; |
1811 | ev_ref (EV_A); |
2596 | ev_ref (EV_A); |
1812 | } |
2597 | } |
1813 | |
2598 | |
1814 | void inline_size |
2599 | inline_size void |
1815 | ev_stop (EV_P_ W w) |
2600 | ev_stop (EV_P_ W w) |
1816 | { |
2601 | { |
1817 | ev_unref (EV_A); |
2602 | ev_unref (EV_A); |
1818 | w->active = 0; |
2603 | w->active = 0; |
1819 | } |
2604 | } |
… | |
… | |
1826 | int fd = w->fd; |
2611 | int fd = w->fd; |
1827 | |
2612 | |
1828 | if (expect_false (ev_is_active (w))) |
2613 | if (expect_false (ev_is_active (w))) |
1829 | return; |
2614 | return; |
1830 | |
2615 | |
1831 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2616 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2617 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2618 | |
|
|
2619 | EV_FREQUENT_CHECK; |
1832 | |
2620 | |
1833 | ev_start (EV_A_ (W)w, 1); |
2621 | ev_start (EV_A_ (W)w, 1); |
1834 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2622 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1835 | wlist_add (&anfds[fd].head, (WL)w); |
2623 | wlist_add (&anfds[fd].head, (WL)w); |
1836 | |
2624 | |
1837 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2625 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1838 | w->events &= ~EV_IOFDSET; |
2626 | w->events &= ~EV__IOFDSET; |
|
|
2627 | |
|
|
2628 | EV_FREQUENT_CHECK; |
1839 | } |
2629 | } |
1840 | |
2630 | |
1841 | void noinline |
2631 | void noinline |
1842 | ev_io_stop (EV_P_ ev_io *w) |
2632 | ev_io_stop (EV_P_ ev_io *w) |
1843 | { |
2633 | { |
1844 | clear_pending (EV_A_ (W)w); |
2634 | clear_pending (EV_A_ (W)w); |
1845 | if (expect_false (!ev_is_active (w))) |
2635 | if (expect_false (!ev_is_active (w))) |
1846 | return; |
2636 | return; |
1847 | |
2637 | |
1848 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2638 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2639 | |
|
|
2640 | EV_FREQUENT_CHECK; |
1849 | |
2641 | |
1850 | wlist_del (&anfds[w->fd].head, (WL)w); |
2642 | wlist_del (&anfds[w->fd].head, (WL)w); |
1851 | ev_stop (EV_A_ (W)w); |
2643 | ev_stop (EV_A_ (W)w); |
1852 | |
2644 | |
1853 | fd_change (EV_A_ w->fd, 1); |
2645 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
2646 | |
|
|
2647 | EV_FREQUENT_CHECK; |
1854 | } |
2648 | } |
1855 | |
2649 | |
1856 | void noinline |
2650 | void noinline |
1857 | ev_timer_start (EV_P_ ev_timer *w) |
2651 | ev_timer_start (EV_P_ ev_timer *w) |
1858 | { |
2652 | { |
1859 | if (expect_false (ev_is_active (w))) |
2653 | if (expect_false (ev_is_active (w))) |
1860 | return; |
2654 | return; |
1861 | |
2655 | |
1862 | ((WT)w)->at += mn_now; |
2656 | ev_at (w) += mn_now; |
1863 | |
2657 | |
1864 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2658 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1865 | |
2659 | |
|
|
2660 | EV_FREQUENT_CHECK; |
|
|
2661 | |
|
|
2662 | ++timercnt; |
1866 | ev_start (EV_A_ (W)w, ++timercnt); |
2663 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1867 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2664 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1868 | timers [timercnt - 1] = (WT)w; |
2665 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1869 | upheap (timers, timercnt - 1); |
2666 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2667 | upheap (timers, ev_active (w)); |
1870 | |
2668 | |
|
|
2669 | EV_FREQUENT_CHECK; |
|
|
2670 | |
1871 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2671 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1872 | } |
2672 | } |
1873 | |
2673 | |
1874 | void noinline |
2674 | void noinline |
1875 | ev_timer_stop (EV_P_ ev_timer *w) |
2675 | ev_timer_stop (EV_P_ ev_timer *w) |
1876 | { |
2676 | { |
1877 | clear_pending (EV_A_ (W)w); |
2677 | clear_pending (EV_A_ (W)w); |
1878 | if (expect_false (!ev_is_active (w))) |
2678 | if (expect_false (!ev_is_active (w))) |
1879 | return; |
2679 | return; |
1880 | |
2680 | |
1881 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2681 | EV_FREQUENT_CHECK; |
1882 | |
2682 | |
1883 | { |
2683 | { |
1884 | int active = ((W)w)->active; |
2684 | int active = ev_active (w); |
1885 | |
2685 | |
|
|
2686 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2687 | |
|
|
2688 | --timercnt; |
|
|
2689 | |
1886 | if (expect_true (--active < --timercnt)) |
2690 | if (expect_true (active < timercnt + HEAP0)) |
1887 | { |
2691 | { |
1888 | timers [active] = timers [timercnt]; |
2692 | timers [active] = timers [timercnt + HEAP0]; |
1889 | adjustheap (timers, timercnt, active); |
2693 | adjustheap (timers, timercnt, active); |
1890 | } |
2694 | } |
1891 | } |
2695 | } |
1892 | |
2696 | |
1893 | ((WT)w)->at -= mn_now; |
2697 | ev_at (w) -= mn_now; |
1894 | |
2698 | |
1895 | ev_stop (EV_A_ (W)w); |
2699 | ev_stop (EV_A_ (W)w); |
|
|
2700 | |
|
|
2701 | EV_FREQUENT_CHECK; |
1896 | } |
2702 | } |
1897 | |
2703 | |
1898 | void noinline |
2704 | void noinline |
1899 | ev_timer_again (EV_P_ ev_timer *w) |
2705 | ev_timer_again (EV_P_ ev_timer *w) |
1900 | { |
2706 | { |
|
|
2707 | EV_FREQUENT_CHECK; |
|
|
2708 | |
1901 | if (ev_is_active (w)) |
2709 | if (ev_is_active (w)) |
1902 | { |
2710 | { |
1903 | if (w->repeat) |
2711 | if (w->repeat) |
1904 | { |
2712 | { |
1905 | ((WT)w)->at = mn_now + w->repeat; |
2713 | ev_at (w) = mn_now + w->repeat; |
|
|
2714 | ANHE_at_cache (timers [ev_active (w)]); |
1906 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2715 | adjustheap (timers, timercnt, ev_active (w)); |
1907 | } |
2716 | } |
1908 | else |
2717 | else |
1909 | ev_timer_stop (EV_A_ w); |
2718 | ev_timer_stop (EV_A_ w); |
1910 | } |
2719 | } |
1911 | else if (w->repeat) |
2720 | else if (w->repeat) |
1912 | { |
2721 | { |
1913 | w->at = w->repeat; |
2722 | ev_at (w) = w->repeat; |
1914 | ev_timer_start (EV_A_ w); |
2723 | ev_timer_start (EV_A_ w); |
1915 | } |
2724 | } |
|
|
2725 | |
|
|
2726 | EV_FREQUENT_CHECK; |
|
|
2727 | } |
|
|
2728 | |
|
|
2729 | ev_tstamp |
|
|
2730 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2731 | { |
|
|
2732 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1916 | } |
2733 | } |
1917 | |
2734 | |
1918 | #if EV_PERIODIC_ENABLE |
2735 | #if EV_PERIODIC_ENABLE |
1919 | void noinline |
2736 | void noinline |
1920 | ev_periodic_start (EV_P_ ev_periodic *w) |
2737 | ev_periodic_start (EV_P_ ev_periodic *w) |
1921 | { |
2738 | { |
1922 | if (expect_false (ev_is_active (w))) |
2739 | if (expect_false (ev_is_active (w))) |
1923 | return; |
2740 | return; |
1924 | |
2741 | |
1925 | if (w->reschedule_cb) |
2742 | if (w->reschedule_cb) |
1926 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2743 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1927 | else if (w->interval) |
2744 | else if (w->interval) |
1928 | { |
2745 | { |
1929 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2746 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1930 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2747 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1931 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2748 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1932 | } |
2749 | } |
1933 | else |
2750 | else |
1934 | ((WT)w)->at = w->offset; |
2751 | ev_at (w) = w->offset; |
1935 | |
2752 | |
|
|
2753 | EV_FREQUENT_CHECK; |
|
|
2754 | |
|
|
2755 | ++periodiccnt; |
1936 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2756 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1937 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2757 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1938 | periodics [periodiccnt - 1] = (WT)w; |
2758 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1939 | upheap (periodics, periodiccnt - 1); |
2759 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2760 | upheap (periodics, ev_active (w)); |
1940 | |
2761 | |
|
|
2762 | EV_FREQUENT_CHECK; |
|
|
2763 | |
1941 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2764 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1942 | } |
2765 | } |
1943 | |
2766 | |
1944 | void noinline |
2767 | void noinline |
1945 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2768 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1946 | { |
2769 | { |
1947 | clear_pending (EV_A_ (W)w); |
2770 | clear_pending (EV_A_ (W)w); |
1948 | if (expect_false (!ev_is_active (w))) |
2771 | if (expect_false (!ev_is_active (w))) |
1949 | return; |
2772 | return; |
1950 | |
2773 | |
1951 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2774 | EV_FREQUENT_CHECK; |
1952 | |
2775 | |
1953 | { |
2776 | { |
1954 | int active = ((W)w)->active; |
2777 | int active = ev_active (w); |
1955 | |
2778 | |
|
|
2779 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2780 | |
|
|
2781 | --periodiccnt; |
|
|
2782 | |
1956 | if (expect_true (--active < --periodiccnt)) |
2783 | if (expect_true (active < periodiccnt + HEAP0)) |
1957 | { |
2784 | { |
1958 | periodics [active] = periodics [periodiccnt]; |
2785 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1959 | adjustheap (periodics, periodiccnt, active); |
2786 | adjustheap (periodics, periodiccnt, active); |
1960 | } |
2787 | } |
1961 | } |
2788 | } |
1962 | |
2789 | |
1963 | ev_stop (EV_A_ (W)w); |
2790 | ev_stop (EV_A_ (W)w); |
|
|
2791 | |
|
|
2792 | EV_FREQUENT_CHECK; |
1964 | } |
2793 | } |
1965 | |
2794 | |
1966 | void noinline |
2795 | void noinline |
1967 | ev_periodic_again (EV_P_ ev_periodic *w) |
2796 | ev_periodic_again (EV_P_ ev_periodic *w) |
1968 | { |
2797 | { |
… | |
… | |
1974 | |
2803 | |
1975 | #ifndef SA_RESTART |
2804 | #ifndef SA_RESTART |
1976 | # define SA_RESTART 0 |
2805 | # define SA_RESTART 0 |
1977 | #endif |
2806 | #endif |
1978 | |
2807 | |
|
|
2808 | #if EV_SIGNAL_ENABLE |
|
|
2809 | |
1979 | void noinline |
2810 | void noinline |
1980 | ev_signal_start (EV_P_ ev_signal *w) |
2811 | ev_signal_start (EV_P_ ev_signal *w) |
1981 | { |
2812 | { |
1982 | #if EV_MULTIPLICITY |
|
|
1983 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1984 | #endif |
|
|
1985 | if (expect_false (ev_is_active (w))) |
2813 | if (expect_false (ev_is_active (w))) |
1986 | return; |
2814 | return; |
1987 | |
2815 | |
1988 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2816 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1989 | |
2817 | |
1990 | evpipe_init (EV_A); |
2818 | #if EV_MULTIPLICITY |
|
|
2819 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2820 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
1991 | |
2821 | |
|
|
2822 | signals [w->signum - 1].loop = EV_A; |
|
|
2823 | #endif |
|
|
2824 | |
|
|
2825 | EV_FREQUENT_CHECK; |
|
|
2826 | |
|
|
2827 | #if EV_USE_SIGNALFD |
|
|
2828 | if (sigfd == -2) |
1992 | { |
2829 | { |
1993 | #ifndef _WIN32 |
2830 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
1994 | sigset_t full, prev; |
2831 | if (sigfd < 0 && errno == EINVAL) |
1995 | sigfillset (&full); |
2832 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
1996 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1997 | #endif |
|
|
1998 | |
2833 | |
1999 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2834 | if (sigfd >= 0) |
|
|
2835 | { |
|
|
2836 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2000 | |
2837 | |
2001 | #ifndef _WIN32 |
2838 | sigemptyset (&sigfd_set); |
2002 | sigprocmask (SIG_SETMASK, &prev, 0); |
2839 | |
2003 | #endif |
2840 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2841 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2842 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2843 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2844 | } |
2004 | } |
2845 | } |
|
|
2846 | |
|
|
2847 | if (sigfd >= 0) |
|
|
2848 | { |
|
|
2849 | /* TODO: check .head */ |
|
|
2850 | sigaddset (&sigfd_set, w->signum); |
|
|
2851 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2852 | |
|
|
2853 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2854 | } |
|
|
2855 | #endif |
2005 | |
2856 | |
2006 | ev_start (EV_A_ (W)w, 1); |
2857 | ev_start (EV_A_ (W)w, 1); |
2007 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2858 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2008 | |
2859 | |
2009 | if (!((WL)w)->next) |
2860 | if (!((WL)w)->next) |
|
|
2861 | # if EV_USE_SIGNALFD |
|
|
2862 | if (sigfd < 0) /*TODO*/ |
|
|
2863 | # endif |
2010 | { |
2864 | { |
2011 | #if _WIN32 |
2865 | # ifdef _WIN32 |
|
|
2866 | evpipe_init (EV_A); |
|
|
2867 | |
2012 | signal (w->signum, ev_sighandler); |
2868 | signal (w->signum, ev_sighandler); |
2013 | #else |
2869 | # else |
2014 | struct sigaction sa; |
2870 | struct sigaction sa; |
|
|
2871 | |
|
|
2872 | evpipe_init (EV_A); |
|
|
2873 | |
2015 | sa.sa_handler = ev_sighandler; |
2874 | sa.sa_handler = ev_sighandler; |
2016 | sigfillset (&sa.sa_mask); |
2875 | sigfillset (&sa.sa_mask); |
2017 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2876 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2018 | sigaction (w->signum, &sa, 0); |
2877 | sigaction (w->signum, &sa, 0); |
|
|
2878 | |
|
|
2879 | sigemptyset (&sa.sa_mask); |
|
|
2880 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2881 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2019 | #endif |
2882 | #endif |
2020 | } |
2883 | } |
|
|
2884 | |
|
|
2885 | EV_FREQUENT_CHECK; |
2021 | } |
2886 | } |
2022 | |
2887 | |
2023 | void noinline |
2888 | void noinline |
2024 | ev_signal_stop (EV_P_ ev_signal *w) |
2889 | ev_signal_stop (EV_P_ ev_signal *w) |
2025 | { |
2890 | { |
2026 | clear_pending (EV_A_ (W)w); |
2891 | clear_pending (EV_A_ (W)w); |
2027 | if (expect_false (!ev_is_active (w))) |
2892 | if (expect_false (!ev_is_active (w))) |
2028 | return; |
2893 | return; |
2029 | |
2894 | |
|
|
2895 | EV_FREQUENT_CHECK; |
|
|
2896 | |
2030 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2897 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2031 | ev_stop (EV_A_ (W)w); |
2898 | ev_stop (EV_A_ (W)w); |
2032 | |
2899 | |
2033 | if (!signals [w->signum - 1].head) |
2900 | if (!signals [w->signum - 1].head) |
|
|
2901 | { |
|
|
2902 | #if EV_MULTIPLICITY |
|
|
2903 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2904 | #endif |
|
|
2905 | #if EV_USE_SIGNALFD |
|
|
2906 | if (sigfd >= 0) |
|
|
2907 | { |
|
|
2908 | sigset_t ss; |
|
|
2909 | |
|
|
2910 | sigemptyset (&ss); |
|
|
2911 | sigaddset (&ss, w->signum); |
|
|
2912 | sigdelset (&sigfd_set, w->signum); |
|
|
2913 | |
|
|
2914 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2915 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2916 | } |
|
|
2917 | else |
|
|
2918 | #endif |
2034 | signal (w->signum, SIG_DFL); |
2919 | signal (w->signum, SIG_DFL); |
|
|
2920 | } |
|
|
2921 | |
|
|
2922 | EV_FREQUENT_CHECK; |
2035 | } |
2923 | } |
|
|
2924 | |
|
|
2925 | #endif |
|
|
2926 | |
|
|
2927 | #if EV_CHILD_ENABLE |
2036 | |
2928 | |
2037 | void |
2929 | void |
2038 | ev_child_start (EV_P_ ev_child *w) |
2930 | ev_child_start (EV_P_ ev_child *w) |
2039 | { |
2931 | { |
2040 | #if EV_MULTIPLICITY |
2932 | #if EV_MULTIPLICITY |
2041 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2933 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2042 | #endif |
2934 | #endif |
2043 | if (expect_false (ev_is_active (w))) |
2935 | if (expect_false (ev_is_active (w))) |
2044 | return; |
2936 | return; |
2045 | |
2937 | |
|
|
2938 | EV_FREQUENT_CHECK; |
|
|
2939 | |
2046 | ev_start (EV_A_ (W)w, 1); |
2940 | ev_start (EV_A_ (W)w, 1); |
2047 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2941 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
2942 | |
|
|
2943 | EV_FREQUENT_CHECK; |
2048 | } |
2944 | } |
2049 | |
2945 | |
2050 | void |
2946 | void |
2051 | ev_child_stop (EV_P_ ev_child *w) |
2947 | ev_child_stop (EV_P_ ev_child *w) |
2052 | { |
2948 | { |
2053 | clear_pending (EV_A_ (W)w); |
2949 | clear_pending (EV_A_ (W)w); |
2054 | if (expect_false (!ev_is_active (w))) |
2950 | if (expect_false (!ev_is_active (w))) |
2055 | return; |
2951 | return; |
2056 | |
2952 | |
|
|
2953 | EV_FREQUENT_CHECK; |
|
|
2954 | |
2057 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2955 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2058 | ev_stop (EV_A_ (W)w); |
2956 | ev_stop (EV_A_ (W)w); |
|
|
2957 | |
|
|
2958 | EV_FREQUENT_CHECK; |
2059 | } |
2959 | } |
|
|
2960 | |
|
|
2961 | #endif |
2060 | |
2962 | |
2061 | #if EV_STAT_ENABLE |
2963 | #if EV_STAT_ENABLE |
2062 | |
2964 | |
2063 | # ifdef _WIN32 |
2965 | # ifdef _WIN32 |
2064 | # undef lstat |
2966 | # undef lstat |
2065 | # define lstat(a,b) _stati64 (a,b) |
2967 | # define lstat(a,b) _stati64 (a,b) |
2066 | # endif |
2968 | # endif |
2067 | |
2969 | |
2068 | #define DEF_STAT_INTERVAL 5.0074891 |
2970 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2971 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2069 | #define MIN_STAT_INTERVAL 0.1074891 |
2972 | #define MIN_STAT_INTERVAL 0.1074891 |
2070 | |
2973 | |
2071 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2974 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2072 | |
2975 | |
2073 | #if EV_USE_INOTIFY |
2976 | #if EV_USE_INOTIFY |
2074 | # define EV_INOTIFY_BUFSIZE 8192 |
2977 | |
|
|
2978 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2979 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2075 | |
2980 | |
2076 | static void noinline |
2981 | static void noinline |
2077 | infy_add (EV_P_ ev_stat *w) |
2982 | infy_add (EV_P_ ev_stat *w) |
2078 | { |
2983 | { |
2079 | 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); |
2984 | 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); |
2080 | |
2985 | |
2081 | if (w->wd < 0) |
2986 | if (w->wd >= 0) |
|
|
2987 | { |
|
|
2988 | struct statfs sfs; |
|
|
2989 | |
|
|
2990 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2991 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2992 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2993 | |
|
|
2994 | if (!fs_2625) |
|
|
2995 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2996 | else if (!statfs (w->path, &sfs) |
|
|
2997 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2998 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2999 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3000 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3001 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3002 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3003 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3004 | else |
|
|
3005 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2082 | { |
3006 | } |
2083 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3007 | else |
|
|
3008 | { |
|
|
3009 | /* can't use inotify, continue to stat */ |
|
|
3010 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2084 | |
3011 | |
2085 | /* monitor some parent directory for speedup hints */ |
3012 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3013 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3014 | /* but an efficiency issue only */ |
2086 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3015 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2087 | { |
3016 | { |
2088 | char path [4096]; |
3017 | char path [4096]; |
2089 | strcpy (path, w->path); |
3018 | strcpy (path, w->path); |
2090 | |
3019 | |
… | |
… | |
2093 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3022 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2094 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3023 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2095 | |
3024 | |
2096 | char *pend = strrchr (path, '/'); |
3025 | char *pend = strrchr (path, '/'); |
2097 | |
3026 | |
2098 | if (!pend) |
3027 | if (!pend || pend == path) |
2099 | break; /* whoops, no '/', complain to your admin */ |
3028 | break; |
2100 | |
3029 | |
2101 | *pend = 0; |
3030 | *pend = 0; |
2102 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3031 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2103 | } |
3032 | } |
2104 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3033 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2105 | } |
3034 | } |
2106 | } |
3035 | } |
2107 | else |
|
|
2108 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2109 | |
3036 | |
2110 | if (w->wd >= 0) |
3037 | if (w->wd >= 0) |
2111 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3038 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3039 | |
|
|
3040 | /* now re-arm timer, if required */ |
|
|
3041 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3042 | ev_timer_again (EV_A_ &w->timer); |
|
|
3043 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2112 | } |
3044 | } |
2113 | |
3045 | |
2114 | static void noinline |
3046 | static void noinline |
2115 | infy_del (EV_P_ ev_stat *w) |
3047 | infy_del (EV_P_ ev_stat *w) |
2116 | { |
3048 | { |
… | |
… | |
2119 | |
3051 | |
2120 | if (wd < 0) |
3052 | if (wd < 0) |
2121 | return; |
3053 | return; |
2122 | |
3054 | |
2123 | w->wd = -2; |
3055 | w->wd = -2; |
2124 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3056 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2125 | wlist_del (&fs_hash [slot].head, (WL)w); |
3057 | wlist_del (&fs_hash [slot].head, (WL)w); |
2126 | |
3058 | |
2127 | /* remove this watcher, if others are watching it, they will rearm */ |
3059 | /* remove this watcher, if others are watching it, they will rearm */ |
2128 | inotify_rm_watch (fs_fd, wd); |
3060 | inotify_rm_watch (fs_fd, wd); |
2129 | } |
3061 | } |
2130 | |
3062 | |
2131 | static void noinline |
3063 | static void noinline |
2132 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3064 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2133 | { |
3065 | { |
2134 | if (slot < 0) |
3066 | if (slot < 0) |
2135 | /* overflow, need to check for all hahs slots */ |
3067 | /* overflow, need to check for all hash slots */ |
2136 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3068 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2137 | infy_wd (EV_A_ slot, wd, ev); |
3069 | infy_wd (EV_A_ slot, wd, ev); |
2138 | else |
3070 | else |
2139 | { |
3071 | { |
2140 | WL w_; |
3072 | WL w_; |
2141 | |
3073 | |
2142 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3074 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2143 | { |
3075 | { |
2144 | ev_stat *w = (ev_stat *)w_; |
3076 | ev_stat *w = (ev_stat *)w_; |
2145 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3077 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2146 | |
3078 | |
2147 | if (w->wd == wd || wd == -1) |
3079 | if (w->wd == wd || wd == -1) |
2148 | { |
3080 | { |
2149 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3081 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2150 | { |
3082 | { |
|
|
3083 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2151 | w->wd = -1; |
3084 | w->wd = -1; |
2152 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3085 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2153 | } |
3086 | } |
2154 | |
3087 | |
2155 | stat_timer_cb (EV_A_ &w->timer, 0); |
3088 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2160 | |
3093 | |
2161 | static void |
3094 | static void |
2162 | infy_cb (EV_P_ ev_io *w, int revents) |
3095 | infy_cb (EV_P_ ev_io *w, int revents) |
2163 | { |
3096 | { |
2164 | char buf [EV_INOTIFY_BUFSIZE]; |
3097 | char buf [EV_INOTIFY_BUFSIZE]; |
2165 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2166 | int ofs; |
3098 | int ofs; |
2167 | int len = read (fs_fd, buf, sizeof (buf)); |
3099 | int len = read (fs_fd, buf, sizeof (buf)); |
2168 | |
3100 | |
2169 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3101 | for (ofs = 0; ofs < len; ) |
|
|
3102 | { |
|
|
3103 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2170 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3104 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3105 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3106 | } |
2171 | } |
3107 | } |
2172 | |
3108 | |
2173 | void inline_size |
3109 | inline_size void |
|
|
3110 | ev_check_2625 (EV_P) |
|
|
3111 | { |
|
|
3112 | /* kernels < 2.6.25 are borked |
|
|
3113 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3114 | */ |
|
|
3115 | if (ev_linux_version () < 0x020619) |
|
|
3116 | return; |
|
|
3117 | |
|
|
3118 | fs_2625 = 1; |
|
|
3119 | } |
|
|
3120 | |
|
|
3121 | inline_size int |
|
|
3122 | infy_newfd (void) |
|
|
3123 | { |
|
|
3124 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3125 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3126 | if (fd >= 0) |
|
|
3127 | return fd; |
|
|
3128 | #endif |
|
|
3129 | return inotify_init (); |
|
|
3130 | } |
|
|
3131 | |
|
|
3132 | inline_size void |
2174 | infy_init (EV_P) |
3133 | infy_init (EV_P) |
2175 | { |
3134 | { |
2176 | if (fs_fd != -2) |
3135 | if (fs_fd != -2) |
2177 | return; |
3136 | return; |
2178 | |
3137 | |
|
|
3138 | fs_fd = -1; |
|
|
3139 | |
|
|
3140 | ev_check_2625 (EV_A); |
|
|
3141 | |
2179 | fs_fd = inotify_init (); |
3142 | fs_fd = infy_newfd (); |
2180 | |
3143 | |
2181 | if (fs_fd >= 0) |
3144 | if (fs_fd >= 0) |
2182 | { |
3145 | { |
|
|
3146 | fd_intern (fs_fd); |
2183 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3147 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2184 | ev_set_priority (&fs_w, EV_MAXPRI); |
3148 | ev_set_priority (&fs_w, EV_MAXPRI); |
2185 | ev_io_start (EV_A_ &fs_w); |
3149 | ev_io_start (EV_A_ &fs_w); |
|
|
3150 | ev_unref (EV_A); |
2186 | } |
3151 | } |
2187 | } |
3152 | } |
2188 | |
3153 | |
2189 | void inline_size |
3154 | inline_size void |
2190 | infy_fork (EV_P) |
3155 | infy_fork (EV_P) |
2191 | { |
3156 | { |
2192 | int slot; |
3157 | int slot; |
2193 | |
3158 | |
2194 | if (fs_fd < 0) |
3159 | if (fs_fd < 0) |
2195 | return; |
3160 | return; |
2196 | |
3161 | |
|
|
3162 | ev_ref (EV_A); |
|
|
3163 | ev_io_stop (EV_A_ &fs_w); |
2197 | close (fs_fd); |
3164 | close (fs_fd); |
2198 | fs_fd = inotify_init (); |
3165 | fs_fd = infy_newfd (); |
2199 | |
3166 | |
|
|
3167 | if (fs_fd >= 0) |
|
|
3168 | { |
|
|
3169 | fd_intern (fs_fd); |
|
|
3170 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3171 | ev_io_start (EV_A_ &fs_w); |
|
|
3172 | ev_unref (EV_A); |
|
|
3173 | } |
|
|
3174 | |
2200 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3175 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2201 | { |
3176 | { |
2202 | WL w_ = fs_hash [slot].head; |
3177 | WL w_ = fs_hash [slot].head; |
2203 | fs_hash [slot].head = 0; |
3178 | fs_hash [slot].head = 0; |
2204 | |
3179 | |
2205 | while (w_) |
3180 | while (w_) |
… | |
… | |
2210 | w->wd = -1; |
3185 | w->wd = -1; |
2211 | |
3186 | |
2212 | if (fs_fd >= 0) |
3187 | if (fs_fd >= 0) |
2213 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3188 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2214 | else |
3189 | else |
|
|
3190 | { |
|
|
3191 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3192 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2215 | ev_timer_start (EV_A_ &w->timer); |
3193 | ev_timer_again (EV_A_ &w->timer); |
|
|
3194 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3195 | } |
2216 | } |
3196 | } |
2217 | |
|
|
2218 | } |
3197 | } |
2219 | } |
3198 | } |
2220 | |
3199 | |
|
|
3200 | #endif |
|
|
3201 | |
|
|
3202 | #ifdef _WIN32 |
|
|
3203 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3204 | #else |
|
|
3205 | # define EV_LSTAT(p,b) lstat (p, b) |
2221 | #endif |
3206 | #endif |
2222 | |
3207 | |
2223 | void |
3208 | void |
2224 | ev_stat_stat (EV_P_ ev_stat *w) |
3209 | ev_stat_stat (EV_P_ ev_stat *w) |
2225 | { |
3210 | { |
… | |
… | |
2232 | static void noinline |
3217 | static void noinline |
2233 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3218 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2234 | { |
3219 | { |
2235 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3220 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2236 | |
3221 | |
2237 | /* we copy this here each the time so that */ |
3222 | ev_statdata prev = w->attr; |
2238 | /* prev has the old value when the callback gets invoked */ |
|
|
2239 | w->prev = w->attr; |
|
|
2240 | ev_stat_stat (EV_A_ w); |
3223 | ev_stat_stat (EV_A_ w); |
2241 | |
3224 | |
2242 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3225 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2243 | if ( |
3226 | if ( |
2244 | w->prev.st_dev != w->attr.st_dev |
3227 | prev.st_dev != w->attr.st_dev |
2245 | || w->prev.st_ino != w->attr.st_ino |
3228 | || prev.st_ino != w->attr.st_ino |
2246 | || w->prev.st_mode != w->attr.st_mode |
3229 | || prev.st_mode != w->attr.st_mode |
2247 | || w->prev.st_nlink != w->attr.st_nlink |
3230 | || prev.st_nlink != w->attr.st_nlink |
2248 | || w->prev.st_uid != w->attr.st_uid |
3231 | || prev.st_uid != w->attr.st_uid |
2249 | || w->prev.st_gid != w->attr.st_gid |
3232 | || prev.st_gid != w->attr.st_gid |
2250 | || w->prev.st_rdev != w->attr.st_rdev |
3233 | || prev.st_rdev != w->attr.st_rdev |
2251 | || w->prev.st_size != w->attr.st_size |
3234 | || prev.st_size != w->attr.st_size |
2252 | || w->prev.st_atime != w->attr.st_atime |
3235 | || prev.st_atime != w->attr.st_atime |
2253 | || w->prev.st_mtime != w->attr.st_mtime |
3236 | || prev.st_mtime != w->attr.st_mtime |
2254 | || w->prev.st_ctime != w->attr.st_ctime |
3237 | || prev.st_ctime != w->attr.st_ctime |
2255 | ) { |
3238 | ) { |
|
|
3239 | /* we only update w->prev on actual differences */ |
|
|
3240 | /* in case we test more often than invoke the callback, */ |
|
|
3241 | /* to ensure that prev is always different to attr */ |
|
|
3242 | w->prev = prev; |
|
|
3243 | |
2256 | #if EV_USE_INOTIFY |
3244 | #if EV_USE_INOTIFY |
|
|
3245 | if (fs_fd >= 0) |
|
|
3246 | { |
2257 | infy_del (EV_A_ w); |
3247 | infy_del (EV_A_ w); |
2258 | infy_add (EV_A_ w); |
3248 | infy_add (EV_A_ w); |
2259 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3249 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3250 | } |
2260 | #endif |
3251 | #endif |
2261 | |
3252 | |
2262 | ev_feed_event (EV_A_ w, EV_STAT); |
3253 | ev_feed_event (EV_A_ w, EV_STAT); |
2263 | } |
3254 | } |
2264 | } |
3255 | } |
… | |
… | |
2267 | ev_stat_start (EV_P_ ev_stat *w) |
3258 | ev_stat_start (EV_P_ ev_stat *w) |
2268 | { |
3259 | { |
2269 | if (expect_false (ev_is_active (w))) |
3260 | if (expect_false (ev_is_active (w))) |
2270 | return; |
3261 | return; |
2271 | |
3262 | |
2272 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2273 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2274 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2275 | |
|
|
2276 | ev_stat_stat (EV_A_ w); |
3263 | ev_stat_stat (EV_A_ w); |
2277 | |
3264 | |
|
|
3265 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2278 | if (w->interval < MIN_STAT_INTERVAL) |
3266 | w->interval = MIN_STAT_INTERVAL; |
2279 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2280 | |
3267 | |
2281 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3268 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2282 | ev_set_priority (&w->timer, ev_priority (w)); |
3269 | ev_set_priority (&w->timer, ev_priority (w)); |
2283 | |
3270 | |
2284 | #if EV_USE_INOTIFY |
3271 | #if EV_USE_INOTIFY |
2285 | infy_init (EV_A); |
3272 | infy_init (EV_A); |
2286 | |
3273 | |
2287 | if (fs_fd >= 0) |
3274 | if (fs_fd >= 0) |
2288 | infy_add (EV_A_ w); |
3275 | infy_add (EV_A_ w); |
2289 | else |
3276 | else |
2290 | #endif |
3277 | #endif |
|
|
3278 | { |
2291 | ev_timer_start (EV_A_ &w->timer); |
3279 | ev_timer_again (EV_A_ &w->timer); |
|
|
3280 | ev_unref (EV_A); |
|
|
3281 | } |
2292 | |
3282 | |
2293 | ev_start (EV_A_ (W)w, 1); |
3283 | ev_start (EV_A_ (W)w, 1); |
|
|
3284 | |
|
|
3285 | EV_FREQUENT_CHECK; |
2294 | } |
3286 | } |
2295 | |
3287 | |
2296 | void |
3288 | void |
2297 | ev_stat_stop (EV_P_ ev_stat *w) |
3289 | ev_stat_stop (EV_P_ ev_stat *w) |
2298 | { |
3290 | { |
2299 | clear_pending (EV_A_ (W)w); |
3291 | clear_pending (EV_A_ (W)w); |
2300 | if (expect_false (!ev_is_active (w))) |
3292 | if (expect_false (!ev_is_active (w))) |
2301 | return; |
3293 | return; |
2302 | |
3294 | |
|
|
3295 | EV_FREQUENT_CHECK; |
|
|
3296 | |
2303 | #if EV_USE_INOTIFY |
3297 | #if EV_USE_INOTIFY |
2304 | infy_del (EV_A_ w); |
3298 | infy_del (EV_A_ w); |
2305 | #endif |
3299 | #endif |
|
|
3300 | |
|
|
3301 | if (ev_is_active (&w->timer)) |
|
|
3302 | { |
|
|
3303 | ev_ref (EV_A); |
2306 | ev_timer_stop (EV_A_ &w->timer); |
3304 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3305 | } |
2307 | |
3306 | |
2308 | ev_stop (EV_A_ (W)w); |
3307 | ev_stop (EV_A_ (W)w); |
|
|
3308 | |
|
|
3309 | EV_FREQUENT_CHECK; |
2309 | } |
3310 | } |
2310 | #endif |
3311 | #endif |
2311 | |
3312 | |
2312 | #if EV_IDLE_ENABLE |
3313 | #if EV_IDLE_ENABLE |
2313 | void |
3314 | void |
… | |
… | |
2315 | { |
3316 | { |
2316 | if (expect_false (ev_is_active (w))) |
3317 | if (expect_false (ev_is_active (w))) |
2317 | return; |
3318 | return; |
2318 | |
3319 | |
2319 | pri_adjust (EV_A_ (W)w); |
3320 | pri_adjust (EV_A_ (W)w); |
|
|
3321 | |
|
|
3322 | EV_FREQUENT_CHECK; |
2320 | |
3323 | |
2321 | { |
3324 | { |
2322 | int active = ++idlecnt [ABSPRI (w)]; |
3325 | int active = ++idlecnt [ABSPRI (w)]; |
2323 | |
3326 | |
2324 | ++idleall; |
3327 | ++idleall; |
2325 | ev_start (EV_A_ (W)w, active); |
3328 | ev_start (EV_A_ (W)w, active); |
2326 | |
3329 | |
2327 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3330 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2328 | idles [ABSPRI (w)][active - 1] = w; |
3331 | idles [ABSPRI (w)][active - 1] = w; |
2329 | } |
3332 | } |
|
|
3333 | |
|
|
3334 | EV_FREQUENT_CHECK; |
2330 | } |
3335 | } |
2331 | |
3336 | |
2332 | void |
3337 | void |
2333 | ev_idle_stop (EV_P_ ev_idle *w) |
3338 | ev_idle_stop (EV_P_ ev_idle *w) |
2334 | { |
3339 | { |
2335 | clear_pending (EV_A_ (W)w); |
3340 | clear_pending (EV_A_ (W)w); |
2336 | if (expect_false (!ev_is_active (w))) |
3341 | if (expect_false (!ev_is_active (w))) |
2337 | return; |
3342 | return; |
2338 | |
3343 | |
|
|
3344 | EV_FREQUENT_CHECK; |
|
|
3345 | |
2339 | { |
3346 | { |
2340 | int active = ((W)w)->active; |
3347 | int active = ev_active (w); |
2341 | |
3348 | |
2342 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3349 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2343 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3350 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2344 | |
3351 | |
2345 | ev_stop (EV_A_ (W)w); |
3352 | ev_stop (EV_A_ (W)w); |
2346 | --idleall; |
3353 | --idleall; |
2347 | } |
3354 | } |
2348 | } |
|
|
2349 | #endif |
|
|
2350 | |
3355 | |
|
|
3356 | EV_FREQUENT_CHECK; |
|
|
3357 | } |
|
|
3358 | #endif |
|
|
3359 | |
|
|
3360 | #if EV_PREPARE_ENABLE |
2351 | void |
3361 | void |
2352 | ev_prepare_start (EV_P_ ev_prepare *w) |
3362 | ev_prepare_start (EV_P_ ev_prepare *w) |
2353 | { |
3363 | { |
2354 | if (expect_false (ev_is_active (w))) |
3364 | if (expect_false (ev_is_active (w))) |
2355 | return; |
3365 | return; |
|
|
3366 | |
|
|
3367 | EV_FREQUENT_CHECK; |
2356 | |
3368 | |
2357 | ev_start (EV_A_ (W)w, ++preparecnt); |
3369 | ev_start (EV_A_ (W)w, ++preparecnt); |
2358 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3370 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2359 | prepares [preparecnt - 1] = w; |
3371 | prepares [preparecnt - 1] = w; |
|
|
3372 | |
|
|
3373 | EV_FREQUENT_CHECK; |
2360 | } |
3374 | } |
2361 | |
3375 | |
2362 | void |
3376 | void |
2363 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3377 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2364 | { |
3378 | { |
2365 | clear_pending (EV_A_ (W)w); |
3379 | clear_pending (EV_A_ (W)w); |
2366 | if (expect_false (!ev_is_active (w))) |
3380 | if (expect_false (!ev_is_active (w))) |
2367 | return; |
3381 | return; |
2368 | |
3382 | |
|
|
3383 | EV_FREQUENT_CHECK; |
|
|
3384 | |
2369 | { |
3385 | { |
2370 | int active = ((W)w)->active; |
3386 | int active = ev_active (w); |
|
|
3387 | |
2371 | prepares [active - 1] = prepares [--preparecnt]; |
3388 | prepares [active - 1] = prepares [--preparecnt]; |
2372 | ((W)prepares [active - 1])->active = active; |
3389 | ev_active (prepares [active - 1]) = active; |
2373 | } |
3390 | } |
2374 | |
3391 | |
2375 | ev_stop (EV_A_ (W)w); |
3392 | ev_stop (EV_A_ (W)w); |
2376 | } |
|
|
2377 | |
3393 | |
|
|
3394 | EV_FREQUENT_CHECK; |
|
|
3395 | } |
|
|
3396 | #endif |
|
|
3397 | |
|
|
3398 | #if EV_CHECK_ENABLE |
2378 | void |
3399 | void |
2379 | ev_check_start (EV_P_ ev_check *w) |
3400 | ev_check_start (EV_P_ ev_check *w) |
2380 | { |
3401 | { |
2381 | if (expect_false (ev_is_active (w))) |
3402 | if (expect_false (ev_is_active (w))) |
2382 | return; |
3403 | return; |
|
|
3404 | |
|
|
3405 | EV_FREQUENT_CHECK; |
2383 | |
3406 | |
2384 | ev_start (EV_A_ (W)w, ++checkcnt); |
3407 | ev_start (EV_A_ (W)w, ++checkcnt); |
2385 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3408 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2386 | checks [checkcnt - 1] = w; |
3409 | checks [checkcnt - 1] = w; |
|
|
3410 | |
|
|
3411 | EV_FREQUENT_CHECK; |
2387 | } |
3412 | } |
2388 | |
3413 | |
2389 | void |
3414 | void |
2390 | ev_check_stop (EV_P_ ev_check *w) |
3415 | ev_check_stop (EV_P_ ev_check *w) |
2391 | { |
3416 | { |
2392 | clear_pending (EV_A_ (W)w); |
3417 | clear_pending (EV_A_ (W)w); |
2393 | if (expect_false (!ev_is_active (w))) |
3418 | if (expect_false (!ev_is_active (w))) |
2394 | return; |
3419 | return; |
2395 | |
3420 | |
|
|
3421 | EV_FREQUENT_CHECK; |
|
|
3422 | |
2396 | { |
3423 | { |
2397 | int active = ((W)w)->active; |
3424 | int active = ev_active (w); |
|
|
3425 | |
2398 | checks [active - 1] = checks [--checkcnt]; |
3426 | checks [active - 1] = checks [--checkcnt]; |
2399 | ((W)checks [active - 1])->active = active; |
3427 | ev_active (checks [active - 1]) = active; |
2400 | } |
3428 | } |
2401 | |
3429 | |
2402 | ev_stop (EV_A_ (W)w); |
3430 | ev_stop (EV_A_ (W)w); |
|
|
3431 | |
|
|
3432 | EV_FREQUENT_CHECK; |
2403 | } |
3433 | } |
|
|
3434 | #endif |
2404 | |
3435 | |
2405 | #if EV_EMBED_ENABLE |
3436 | #if EV_EMBED_ENABLE |
2406 | void noinline |
3437 | void noinline |
2407 | ev_embed_sweep (EV_P_ ev_embed *w) |
3438 | ev_embed_sweep (EV_P_ ev_embed *w) |
2408 | { |
3439 | { |
2409 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3440 | ev_run (w->other, EVRUN_NOWAIT); |
2410 | } |
3441 | } |
2411 | |
3442 | |
2412 | static void |
3443 | static void |
2413 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3444 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2414 | { |
3445 | { |
2415 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3446 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2416 | |
3447 | |
2417 | if (ev_cb (w)) |
3448 | if (ev_cb (w)) |
2418 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3449 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2419 | else |
3450 | else |
2420 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3451 | ev_run (w->other, EVRUN_NOWAIT); |
2421 | } |
3452 | } |
2422 | |
3453 | |
2423 | static void |
3454 | static void |
2424 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3455 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2425 | { |
3456 | { |
2426 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3457 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2427 | |
3458 | |
2428 | { |
3459 | { |
2429 | struct ev_loop *loop = w->other; |
3460 | EV_P = w->other; |
2430 | |
3461 | |
2431 | while (fdchangecnt) |
3462 | while (fdchangecnt) |
2432 | { |
3463 | { |
2433 | fd_reify (EV_A); |
3464 | fd_reify (EV_A); |
2434 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3465 | ev_run (EV_A_ EVRUN_NOWAIT); |
2435 | } |
3466 | } |
2436 | } |
3467 | } |
|
|
3468 | } |
|
|
3469 | |
|
|
3470 | static void |
|
|
3471 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3472 | { |
|
|
3473 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3474 | |
|
|
3475 | ev_embed_stop (EV_A_ w); |
|
|
3476 | |
|
|
3477 | { |
|
|
3478 | EV_P = w->other; |
|
|
3479 | |
|
|
3480 | ev_loop_fork (EV_A); |
|
|
3481 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3482 | } |
|
|
3483 | |
|
|
3484 | ev_embed_start (EV_A_ w); |
2437 | } |
3485 | } |
2438 | |
3486 | |
2439 | #if 0 |
3487 | #if 0 |
2440 | static void |
3488 | static void |
2441 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3489 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2449 | { |
3497 | { |
2450 | if (expect_false (ev_is_active (w))) |
3498 | if (expect_false (ev_is_active (w))) |
2451 | return; |
3499 | return; |
2452 | |
3500 | |
2453 | { |
3501 | { |
2454 | struct ev_loop *loop = w->other; |
3502 | EV_P = w->other; |
2455 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3503 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2456 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3504 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2457 | } |
3505 | } |
|
|
3506 | |
|
|
3507 | EV_FREQUENT_CHECK; |
2458 | |
3508 | |
2459 | ev_set_priority (&w->io, ev_priority (w)); |
3509 | ev_set_priority (&w->io, ev_priority (w)); |
2460 | ev_io_start (EV_A_ &w->io); |
3510 | ev_io_start (EV_A_ &w->io); |
2461 | |
3511 | |
2462 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3512 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2463 | ev_set_priority (&w->prepare, EV_MINPRI); |
3513 | ev_set_priority (&w->prepare, EV_MINPRI); |
2464 | ev_prepare_start (EV_A_ &w->prepare); |
3514 | ev_prepare_start (EV_A_ &w->prepare); |
2465 | |
3515 | |
|
|
3516 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3517 | ev_fork_start (EV_A_ &w->fork); |
|
|
3518 | |
2466 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3519 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2467 | |
3520 | |
2468 | ev_start (EV_A_ (W)w, 1); |
3521 | ev_start (EV_A_ (W)w, 1); |
|
|
3522 | |
|
|
3523 | EV_FREQUENT_CHECK; |
2469 | } |
3524 | } |
2470 | |
3525 | |
2471 | void |
3526 | void |
2472 | ev_embed_stop (EV_P_ ev_embed *w) |
3527 | ev_embed_stop (EV_P_ ev_embed *w) |
2473 | { |
3528 | { |
2474 | clear_pending (EV_A_ (W)w); |
3529 | clear_pending (EV_A_ (W)w); |
2475 | if (expect_false (!ev_is_active (w))) |
3530 | if (expect_false (!ev_is_active (w))) |
2476 | return; |
3531 | return; |
2477 | |
3532 | |
|
|
3533 | EV_FREQUENT_CHECK; |
|
|
3534 | |
2478 | ev_io_stop (EV_A_ &w->io); |
3535 | ev_io_stop (EV_A_ &w->io); |
2479 | ev_prepare_stop (EV_A_ &w->prepare); |
3536 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3537 | ev_fork_stop (EV_A_ &w->fork); |
2480 | |
3538 | |
2481 | ev_stop (EV_A_ (W)w); |
3539 | ev_stop (EV_A_ (W)w); |
|
|
3540 | |
|
|
3541 | EV_FREQUENT_CHECK; |
2482 | } |
3542 | } |
2483 | #endif |
3543 | #endif |
2484 | |
3544 | |
2485 | #if EV_FORK_ENABLE |
3545 | #if EV_FORK_ENABLE |
2486 | void |
3546 | void |
2487 | ev_fork_start (EV_P_ ev_fork *w) |
3547 | ev_fork_start (EV_P_ ev_fork *w) |
2488 | { |
3548 | { |
2489 | if (expect_false (ev_is_active (w))) |
3549 | if (expect_false (ev_is_active (w))) |
2490 | return; |
3550 | return; |
|
|
3551 | |
|
|
3552 | EV_FREQUENT_CHECK; |
2491 | |
3553 | |
2492 | ev_start (EV_A_ (W)w, ++forkcnt); |
3554 | ev_start (EV_A_ (W)w, ++forkcnt); |
2493 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3555 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2494 | forks [forkcnt - 1] = w; |
3556 | forks [forkcnt - 1] = w; |
|
|
3557 | |
|
|
3558 | EV_FREQUENT_CHECK; |
2495 | } |
3559 | } |
2496 | |
3560 | |
2497 | void |
3561 | void |
2498 | ev_fork_stop (EV_P_ ev_fork *w) |
3562 | ev_fork_stop (EV_P_ ev_fork *w) |
2499 | { |
3563 | { |
2500 | clear_pending (EV_A_ (W)w); |
3564 | clear_pending (EV_A_ (W)w); |
2501 | if (expect_false (!ev_is_active (w))) |
3565 | if (expect_false (!ev_is_active (w))) |
2502 | return; |
3566 | return; |
2503 | |
3567 | |
|
|
3568 | EV_FREQUENT_CHECK; |
|
|
3569 | |
2504 | { |
3570 | { |
2505 | int active = ((W)w)->active; |
3571 | int active = ev_active (w); |
|
|
3572 | |
2506 | forks [active - 1] = forks [--forkcnt]; |
3573 | forks [active - 1] = forks [--forkcnt]; |
2507 | ((W)forks [active - 1])->active = active; |
3574 | ev_active (forks [active - 1]) = active; |
2508 | } |
3575 | } |
2509 | |
3576 | |
2510 | ev_stop (EV_A_ (W)w); |
3577 | ev_stop (EV_A_ (W)w); |
|
|
3578 | |
|
|
3579 | EV_FREQUENT_CHECK; |
2511 | } |
3580 | } |
2512 | #endif |
3581 | #endif |
2513 | |
3582 | |
2514 | #if EV_ASYNC_ENABLE |
3583 | #if EV_ASYNC_ENABLE |
2515 | void |
3584 | void |
2516 | ev_async_start (EV_P_ ev_async *w) |
3585 | ev_async_start (EV_P_ ev_async *w) |
2517 | { |
3586 | { |
2518 | if (expect_false (ev_is_active (w))) |
3587 | if (expect_false (ev_is_active (w))) |
2519 | return; |
3588 | return; |
2520 | |
3589 | |
|
|
3590 | w->sent = 0; |
|
|
3591 | |
2521 | evpipe_init (EV_A); |
3592 | evpipe_init (EV_A); |
|
|
3593 | |
|
|
3594 | EV_FREQUENT_CHECK; |
2522 | |
3595 | |
2523 | ev_start (EV_A_ (W)w, ++asynccnt); |
3596 | ev_start (EV_A_ (W)w, ++asynccnt); |
2524 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3597 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2525 | asyncs [asynccnt - 1] = w; |
3598 | asyncs [asynccnt - 1] = w; |
|
|
3599 | |
|
|
3600 | EV_FREQUENT_CHECK; |
2526 | } |
3601 | } |
2527 | |
3602 | |
2528 | void |
3603 | void |
2529 | ev_async_stop (EV_P_ ev_async *w) |
3604 | ev_async_stop (EV_P_ ev_async *w) |
2530 | { |
3605 | { |
2531 | clear_pending (EV_A_ (W)w); |
3606 | clear_pending (EV_A_ (W)w); |
2532 | if (expect_false (!ev_is_active (w))) |
3607 | if (expect_false (!ev_is_active (w))) |
2533 | return; |
3608 | return; |
2534 | |
3609 | |
|
|
3610 | EV_FREQUENT_CHECK; |
|
|
3611 | |
2535 | { |
3612 | { |
2536 | int active = ((W)w)->active; |
3613 | int active = ev_active (w); |
|
|
3614 | |
2537 | asyncs [active - 1] = asyncs [--asynccnt]; |
3615 | asyncs [active - 1] = asyncs [--asynccnt]; |
2538 | ((W)asyncs [active - 1])->active = active; |
3616 | ev_active (asyncs [active - 1]) = active; |
2539 | } |
3617 | } |
2540 | |
3618 | |
2541 | ev_stop (EV_A_ (W)w); |
3619 | ev_stop (EV_A_ (W)w); |
|
|
3620 | |
|
|
3621 | EV_FREQUENT_CHECK; |
2542 | } |
3622 | } |
2543 | |
3623 | |
2544 | void |
3624 | void |
2545 | ev_async_send (EV_P_ ev_async *w) |
3625 | ev_async_send (EV_P_ ev_async *w) |
2546 | { |
3626 | { |
2547 | w->sent = 1; |
3627 | w->sent = 1; |
2548 | evpipe_write (EV_A_ &gotasync); |
3628 | evpipe_write (EV_A_ &async_pending); |
2549 | } |
3629 | } |
2550 | #endif |
3630 | #endif |
2551 | |
3631 | |
2552 | /*****************************************************************************/ |
3632 | /*****************************************************************************/ |
2553 | |
3633 | |
… | |
… | |
2563 | once_cb (EV_P_ struct ev_once *once, int revents) |
3643 | once_cb (EV_P_ struct ev_once *once, int revents) |
2564 | { |
3644 | { |
2565 | void (*cb)(int revents, void *arg) = once->cb; |
3645 | void (*cb)(int revents, void *arg) = once->cb; |
2566 | void *arg = once->arg; |
3646 | void *arg = once->arg; |
2567 | |
3647 | |
2568 | ev_io_stop (EV_A_ &once->io); |
3648 | ev_io_stop (EV_A_ &once->io); |
2569 | ev_timer_stop (EV_A_ &once->to); |
3649 | ev_timer_stop (EV_A_ &once->to); |
2570 | ev_free (once); |
3650 | ev_free (once); |
2571 | |
3651 | |
2572 | cb (revents, arg); |
3652 | cb (revents, arg); |
2573 | } |
3653 | } |
2574 | |
3654 | |
2575 | static void |
3655 | static void |
2576 | once_cb_io (EV_P_ ev_io *w, int revents) |
3656 | once_cb_io (EV_P_ ev_io *w, int revents) |
2577 | { |
3657 | { |
2578 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3658 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3659 | |
|
|
3660 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2579 | } |
3661 | } |
2580 | |
3662 | |
2581 | static void |
3663 | static void |
2582 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3664 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2583 | { |
3665 | { |
2584 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3666 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3667 | |
|
|
3668 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2585 | } |
3669 | } |
2586 | |
3670 | |
2587 | void |
3671 | void |
2588 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3672 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2589 | { |
3673 | { |
2590 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3674 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2591 | |
3675 | |
2592 | if (expect_false (!once)) |
3676 | if (expect_false (!once)) |
2593 | { |
3677 | { |
2594 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3678 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2595 | return; |
3679 | return; |
2596 | } |
3680 | } |
2597 | |
3681 | |
2598 | once->cb = cb; |
3682 | once->cb = cb; |
2599 | once->arg = arg; |
3683 | once->arg = arg; |
… | |
… | |
2611 | ev_timer_set (&once->to, timeout, 0.); |
3695 | ev_timer_set (&once->to, timeout, 0.); |
2612 | ev_timer_start (EV_A_ &once->to); |
3696 | ev_timer_start (EV_A_ &once->to); |
2613 | } |
3697 | } |
2614 | } |
3698 | } |
2615 | |
3699 | |
|
|
3700 | /*****************************************************************************/ |
|
|
3701 | |
|
|
3702 | #if EV_WALK_ENABLE |
|
|
3703 | void |
|
|
3704 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3705 | { |
|
|
3706 | int i, j; |
|
|
3707 | ev_watcher_list *wl, *wn; |
|
|
3708 | |
|
|
3709 | if (types & (EV_IO | EV_EMBED)) |
|
|
3710 | for (i = 0; i < anfdmax; ++i) |
|
|
3711 | for (wl = anfds [i].head; wl; ) |
|
|
3712 | { |
|
|
3713 | wn = wl->next; |
|
|
3714 | |
|
|
3715 | #if EV_EMBED_ENABLE |
|
|
3716 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3717 | { |
|
|
3718 | if (types & EV_EMBED) |
|
|
3719 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3720 | } |
|
|
3721 | else |
|
|
3722 | #endif |
|
|
3723 | #if EV_USE_INOTIFY |
|
|
3724 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3725 | ; |
|
|
3726 | else |
|
|
3727 | #endif |
|
|
3728 | if ((ev_io *)wl != &pipe_w) |
|
|
3729 | if (types & EV_IO) |
|
|
3730 | cb (EV_A_ EV_IO, wl); |
|
|
3731 | |
|
|
3732 | wl = wn; |
|
|
3733 | } |
|
|
3734 | |
|
|
3735 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3736 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3737 | #if EV_STAT_ENABLE |
|
|
3738 | /*TODO: timer is not always active*/ |
|
|
3739 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3740 | { |
|
|
3741 | if (types & EV_STAT) |
|
|
3742 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3743 | } |
|
|
3744 | else |
|
|
3745 | #endif |
|
|
3746 | if (types & EV_TIMER) |
|
|
3747 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3748 | |
|
|
3749 | #if EV_PERIODIC_ENABLE |
|
|
3750 | if (types & EV_PERIODIC) |
|
|
3751 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3752 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3753 | #endif |
|
|
3754 | |
|
|
3755 | #if EV_IDLE_ENABLE |
|
|
3756 | if (types & EV_IDLE) |
|
|
3757 | for (j = NUMPRI; i--; ) |
|
|
3758 | for (i = idlecnt [j]; i--; ) |
|
|
3759 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3760 | #endif |
|
|
3761 | |
|
|
3762 | #if EV_FORK_ENABLE |
|
|
3763 | if (types & EV_FORK) |
|
|
3764 | for (i = forkcnt; i--; ) |
|
|
3765 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3766 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3767 | #endif |
|
|
3768 | |
|
|
3769 | #if EV_ASYNC_ENABLE |
|
|
3770 | if (types & EV_ASYNC) |
|
|
3771 | for (i = asynccnt; i--; ) |
|
|
3772 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3773 | #endif |
|
|
3774 | |
|
|
3775 | #if EV_PREPARE_ENABLE |
|
|
3776 | if (types & EV_PREPARE) |
|
|
3777 | for (i = preparecnt; i--; ) |
|
|
3778 | # if EV_EMBED_ENABLE |
|
|
3779 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3780 | # endif |
|
|
3781 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3782 | #endif |
|
|
3783 | |
|
|
3784 | #if EV_CHECK_ENABLE |
|
|
3785 | if (types & EV_CHECK) |
|
|
3786 | for (i = checkcnt; i--; ) |
|
|
3787 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3788 | #endif |
|
|
3789 | |
|
|
3790 | #if EV_SIGNAL_ENABLE |
|
|
3791 | if (types & EV_SIGNAL) |
|
|
3792 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3793 | for (wl = signals [i].head; wl; ) |
|
|
3794 | { |
|
|
3795 | wn = wl->next; |
|
|
3796 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3797 | wl = wn; |
|
|
3798 | } |
|
|
3799 | #endif |
|
|
3800 | |
|
|
3801 | #if EV_CHILD_ENABLE |
|
|
3802 | if (types & EV_CHILD) |
|
|
3803 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3804 | for (wl = childs [i]; wl; ) |
|
|
3805 | { |
|
|
3806 | wn = wl->next; |
|
|
3807 | cb (EV_A_ EV_CHILD, wl); |
|
|
3808 | wl = wn; |
|
|
3809 | } |
|
|
3810 | #endif |
|
|
3811 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3812 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3813 | } |
|
|
3814 | #endif |
|
|
3815 | |
2616 | #if EV_MULTIPLICITY |
3816 | #if EV_MULTIPLICITY |
2617 | #include "ev_wrap.h" |
3817 | #include "ev_wrap.h" |
2618 | #endif |
3818 | #endif |
2619 | |
3819 | |
2620 | #ifdef __cplusplus |
3820 | EV_CPP(}) |
2621 | } |
|
|
2622 | #endif |
|
|
2623 | |
3821 | |