1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 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 | * |
… | |
… | |
57 | # endif |
57 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
58 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
59 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
60 | # endif |
61 | # endif |
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
63 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
64 | # endif |
63 | |
65 | |
64 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
75 | # ifndef EV_USE_REALTIME |
77 | # ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 0 |
78 | # define EV_USE_REALTIME 0 |
77 | # endif |
79 | # endif |
78 | # endif |
80 | # endif |
79 | |
81 | |
|
|
82 | # if HAVE_NANOSLEEP |
80 | # ifndef EV_USE_NANOSLEEP |
83 | # ifndef EV_USE_NANOSLEEP |
81 | # if HAVE_NANOSLEEP |
|
|
82 | # define EV_USE_NANOSLEEP 1 |
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
85 | # endif |
83 | # else |
86 | # else |
|
|
87 | # undef EV_USE_NANOSLEEP |
84 | # define EV_USE_NANOSLEEP 0 |
88 | # define EV_USE_NANOSLEEP 0 |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
92 | # ifndef EV_USE_SELECT |
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|
93 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
85 | # endif |
94 | # endif |
86 | # endif |
|
|
87 | |
|
|
88 | # ifndef EV_USE_SELECT |
|
|
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
90 | # define EV_USE_SELECT 1 |
|
|
91 | # else |
95 | # else |
|
|
96 | # undef EV_USE_SELECT |
92 | # define EV_USE_SELECT 0 |
97 | # define EV_USE_SELECT 0 |
|
|
98 | # endif |
|
|
99 | |
|
|
100 | # if HAVE_POLL && HAVE_POLL_H |
|
|
101 | # ifndef EV_USE_POLL |
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|
102 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
93 | # endif |
103 | # endif |
94 | # endif |
|
|
95 | |
|
|
96 | # ifndef EV_USE_POLL |
|
|
97 | # if HAVE_POLL && HAVE_POLL_H |
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|
98 | # define EV_USE_POLL 1 |
|
|
99 | # else |
104 | # else |
|
|
105 | # undef EV_USE_POLL |
100 | # define EV_USE_POLL 0 |
106 | # define EV_USE_POLL 0 |
|
|
107 | # endif |
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|
108 | |
|
|
109 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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|
110 | # ifndef EV_USE_EPOLL |
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|
111 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
101 | # endif |
112 | # endif |
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|
113 | # else |
|
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114 | # undef EV_USE_EPOLL |
|
|
115 | # define EV_USE_EPOLL 0 |
102 | # endif |
116 | # endif |
103 | |
117 | |
|
|
118 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
104 | # ifndef EV_USE_EPOLL |
119 | # ifndef EV_USE_KQUEUE |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
120 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
106 | # define EV_USE_EPOLL 1 |
|
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107 | # else |
|
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108 | # define EV_USE_EPOLL 0 |
|
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109 | # endif |
121 | # endif |
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122 | # else |
|
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123 | # undef EV_USE_KQUEUE |
|
|
124 | # define EV_USE_KQUEUE 0 |
110 | # endif |
125 | # endif |
111 | |
126 | |
112 | # ifndef EV_USE_KQUEUE |
127 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
128 | # ifndef EV_USE_PORT |
114 | # define EV_USE_KQUEUE 1 |
129 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
115 | # else |
|
|
116 | # define EV_USE_KQUEUE 0 |
|
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117 | # endif |
130 | # endif |
118 | # endif |
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119 | |
|
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120 | # ifndef EV_USE_PORT |
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121 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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122 | # define EV_USE_PORT 1 |
|
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123 | # else |
131 | # else |
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132 | # undef EV_USE_PORT |
124 | # define EV_USE_PORT 0 |
133 | # define EV_USE_PORT 0 |
|
|
134 | # endif |
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135 | |
|
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136 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
137 | # ifndef EV_USE_INOTIFY |
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138 | # define EV_USE_INOTIFY EV_FEATURE_OS |
125 | # endif |
139 | # endif |
126 | # endif |
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127 | |
|
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128 | # ifndef EV_USE_INOTIFY |
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129 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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130 | # define EV_USE_INOTIFY 1 |
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131 | # else |
140 | # else |
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141 | # undef EV_USE_INOTIFY |
132 | # define EV_USE_INOTIFY 0 |
142 | # define EV_USE_INOTIFY 0 |
|
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143 | # endif |
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144 | |
|
|
145 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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|
146 | # ifndef EV_USE_SIGNALFD |
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|
147 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
133 | # endif |
148 | # endif |
|
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149 | # else |
|
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150 | # undef EV_USE_SIGNALFD |
|
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151 | # define EV_USE_SIGNALFD 0 |
134 | # endif |
152 | # endif |
135 | |
153 | |
|
|
154 | # if HAVE_EVENTFD |
136 | # ifndef EV_USE_EVENTFD |
155 | # ifndef EV_USE_EVENTFD |
137 | # if HAVE_EVENTFD |
|
|
138 | # define EV_USE_EVENTFD 1 |
156 | # define EV_USE_EVENTFD EV_FEATURE_OS |
139 | # else |
|
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140 | # define EV_USE_EVENTFD 0 |
|
|
141 | # endif |
157 | # endif |
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158 | # else |
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159 | # undef EV_USE_EVENTFD |
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160 | # define EV_USE_EVENTFD 0 |
142 | # endif |
161 | # endif |
143 | |
162 | |
144 | #endif |
163 | #endif |
145 | |
164 | |
146 | #include <math.h> |
165 | #include <math.h> |
147 | #include <stdlib.h> |
166 | #include <stdlib.h> |
|
|
167 | #include <string.h> |
148 | #include <fcntl.h> |
168 | #include <fcntl.h> |
149 | #include <stddef.h> |
169 | #include <stddef.h> |
150 | |
170 | |
151 | #include <stdio.h> |
171 | #include <stdio.h> |
152 | |
172 | |
153 | #include <assert.h> |
173 | #include <assert.h> |
154 | #include <errno.h> |
174 | #include <errno.h> |
155 | #include <sys/types.h> |
175 | #include <sys/types.h> |
156 | #include <time.h> |
176 | #include <time.h> |
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|
177 | #include <limits.h> |
157 | |
178 | |
158 | #include <signal.h> |
179 | #include <signal.h> |
159 | |
180 | |
160 | #ifdef EV_H |
181 | #ifdef EV_H |
161 | # include EV_H |
182 | # include EV_H |
… | |
… | |
172 | # define WIN32_LEAN_AND_MEAN |
193 | # define WIN32_LEAN_AND_MEAN |
173 | # include <windows.h> |
194 | # include <windows.h> |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
176 | # endif |
197 | # endif |
|
|
198 | # undef EV_AVOID_STDIO |
177 | #endif |
199 | #endif |
178 | |
200 | |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
201 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
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202 | |
|
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203 | /* try to deduce the maximum number of signals on this platform */ |
|
|
204 | #if defined (EV_NSIG) |
|
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205 | /* use what's provided */ |
|
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206 | #elif defined (NSIG) |
|
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207 | # define EV_NSIG (NSIG) |
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208 | #elif defined(_NSIG) |
|
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209 | # define EV_NSIG (_NSIG) |
|
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210 | #elif defined (SIGMAX) |
|
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211 | # define EV_NSIG (SIGMAX+1) |
|
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212 | #elif defined (SIG_MAX) |
|
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213 | # define EV_NSIG (SIG_MAX+1) |
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214 | #elif defined (_SIG_MAX) |
|
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215 | # define EV_NSIG (_SIG_MAX+1) |
|
|
216 | #elif defined (MAXSIG) |
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217 | # define EV_NSIG (MAXSIG+1) |
|
|
218 | #elif defined (MAX_SIG) |
|
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219 | # define EV_NSIG (MAX_SIG+1) |
|
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220 | #elif defined (SIGARRAYSIZE) |
|
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221 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
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222 | #elif defined (_sys_nsig) |
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223 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
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224 | #else |
|
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225 | # error "unable to find value for NSIG, please report" |
|
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226 | /* to make it compile regardless, just remove the above line, */ |
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227 | /* but consider reporting it, too! :) */ |
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228 | # define EV_NSIG 65 |
|
|
229 | #endif |
180 | |
230 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
231 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
232 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
233 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
184 | # else |
234 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
235 | # define EV_USE_CLOCK_SYSCALL 0 |
186 | # endif |
236 | # endif |
187 | #endif |
237 | #endif |
188 | |
238 | |
189 | #ifndef EV_USE_MONOTONIC |
239 | #ifndef EV_USE_MONOTONIC |
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
240 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
191 | # define EV_USE_MONOTONIC 1 |
241 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
192 | # else |
242 | # else |
193 | # define EV_USE_MONOTONIC 0 |
243 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
244 | # endif |
195 | #endif |
245 | #endif |
196 | |
246 | |
… | |
… | |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
248 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
249 | #endif |
200 | |
250 | |
201 | #ifndef EV_USE_NANOSLEEP |
251 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
252 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
253 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
204 | # else |
254 | # else |
205 | # define EV_USE_NANOSLEEP 0 |
255 | # define EV_USE_NANOSLEEP 0 |
206 | # endif |
256 | # endif |
207 | #endif |
257 | #endif |
208 | |
258 | |
209 | #ifndef EV_USE_SELECT |
259 | #ifndef EV_USE_SELECT |
210 | # define EV_USE_SELECT 1 |
260 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
211 | #endif |
261 | #endif |
212 | |
262 | |
213 | #ifndef EV_USE_POLL |
263 | #ifndef EV_USE_POLL |
214 | # ifdef _WIN32 |
264 | # ifdef _WIN32 |
215 | # define EV_USE_POLL 0 |
265 | # define EV_USE_POLL 0 |
216 | # else |
266 | # else |
217 | # define EV_USE_POLL 1 |
267 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
218 | # endif |
268 | # endif |
219 | #endif |
269 | #endif |
220 | |
270 | |
221 | #ifndef EV_USE_EPOLL |
271 | #ifndef EV_USE_EPOLL |
222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
272 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
223 | # define EV_USE_EPOLL 1 |
273 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
224 | # else |
274 | # else |
225 | # define EV_USE_EPOLL 0 |
275 | # define EV_USE_EPOLL 0 |
226 | # endif |
276 | # endif |
227 | #endif |
277 | #endif |
228 | |
278 | |
… | |
… | |
234 | # define EV_USE_PORT 0 |
284 | # define EV_USE_PORT 0 |
235 | #endif |
285 | #endif |
236 | |
286 | |
237 | #ifndef EV_USE_INOTIFY |
287 | #ifndef EV_USE_INOTIFY |
238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
288 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
239 | # define EV_USE_INOTIFY 1 |
289 | # define EV_USE_INOTIFY EV_FEATURE_OS |
240 | # else |
290 | # else |
241 | # define EV_USE_INOTIFY 0 |
291 | # define EV_USE_INOTIFY 0 |
242 | # endif |
292 | # endif |
243 | #endif |
293 | #endif |
244 | |
294 | |
245 | #ifndef EV_PID_HASHSIZE |
295 | #ifndef EV_PID_HASHSIZE |
246 | # if EV_MINIMAL |
296 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
247 | # define EV_PID_HASHSIZE 1 |
|
|
248 | # else |
|
|
249 | # define EV_PID_HASHSIZE 16 |
|
|
250 | # endif |
|
|
251 | #endif |
297 | #endif |
252 | |
298 | |
253 | #ifndef EV_INOTIFY_HASHSIZE |
299 | #ifndef EV_INOTIFY_HASHSIZE |
254 | # if EV_MINIMAL |
300 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
255 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
256 | # else |
|
|
257 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
258 | # endif |
|
|
259 | #endif |
301 | #endif |
260 | |
302 | |
261 | #ifndef EV_USE_EVENTFD |
303 | #ifndef EV_USE_EVENTFD |
262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
304 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
263 | # define EV_USE_EVENTFD 1 |
305 | # define EV_USE_EVENTFD EV_FEATURE_OS |
264 | # else |
306 | # else |
265 | # define EV_USE_EVENTFD 0 |
307 | # define EV_USE_EVENTFD 0 |
|
|
308 | # endif |
|
|
309 | #endif |
|
|
310 | |
|
|
311 | #ifndef EV_USE_SIGNALFD |
|
|
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
313 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
314 | # else |
|
|
315 | # define EV_USE_SIGNALFD 0 |
266 | # endif |
316 | # endif |
267 | #endif |
317 | #endif |
268 | |
318 | |
269 | #if 0 /* debugging */ |
319 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
320 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
321 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
322 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
323 | #endif |
274 | |
324 | |
275 | #ifndef EV_VERIFY |
325 | #ifndef EV_VERIFY |
276 | # define EV_VERIFY !EV_MINIMAL |
326 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
277 | #endif |
327 | #endif |
278 | |
328 | |
279 | #ifndef EV_USE_4HEAP |
329 | #ifndef EV_USE_4HEAP |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
330 | # define EV_USE_4HEAP EV_FEATURE_DATA |
281 | #endif |
331 | #endif |
282 | |
332 | |
283 | #ifndef EV_HEAP_CACHE_AT |
333 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
334 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
335 | #endif |
|
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336 | |
|
|
337 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
338 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
339 | #if EV_USE_CLOCK_SYSCALL |
|
|
340 | # include <syscall.h> |
|
|
341 | # ifdef SYS_clock_gettime |
|
|
342 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
343 | # undef EV_USE_MONOTONIC |
|
|
344 | # define EV_USE_MONOTONIC 1 |
|
|
345 | # else |
|
|
346 | # undef EV_USE_CLOCK_SYSCALL |
|
|
347 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
348 | # endif |
285 | #endif |
349 | #endif |
286 | |
350 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
351 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
352 | |
|
|
353 | #ifdef _AIX |
|
|
354 | /* AIX has a completely broken poll.h header */ |
|
|
355 | # undef EV_USE_POLL |
|
|
356 | # define EV_USE_POLL 0 |
|
|
357 | #endif |
288 | |
358 | |
289 | #ifndef CLOCK_MONOTONIC |
359 | #ifndef CLOCK_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
360 | # undef EV_USE_MONOTONIC |
291 | # define EV_USE_MONOTONIC 0 |
361 | # define EV_USE_MONOTONIC 0 |
292 | #endif |
362 | #endif |
… | |
… | |
320 | |
390 | |
321 | #if EV_SELECT_IS_WINSOCKET |
391 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
392 | # include <winsock.h> |
323 | #endif |
393 | #endif |
324 | |
394 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
395 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
396 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
336 | # include <stdint.h> |
397 | # include <stdint.h> |
|
|
398 | # ifndef EFD_NONBLOCK |
|
|
399 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
400 | # endif |
|
|
401 | # ifndef EFD_CLOEXEC |
|
|
402 | # ifdef O_CLOEXEC |
|
|
403 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
404 | # else |
|
|
405 | # define EFD_CLOEXEC 02000000 |
|
|
406 | # endif |
|
|
407 | # endif |
337 | # ifdef __cplusplus |
408 | # ifdef __cplusplus |
338 | extern "C" { |
409 | extern "C" { |
339 | # endif |
410 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
411 | int (eventfd) (unsigned int initval, int flags); |
341 | # ifdef __cplusplus |
412 | # ifdef __cplusplus |
342 | } |
413 | } |
343 | # endif |
414 | # endif |
344 | #endif |
415 | #endif |
345 | |
416 | |
|
|
417 | #if EV_USE_SIGNALFD |
|
|
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
419 | # include <stdint.h> |
|
|
420 | # ifndef SFD_NONBLOCK |
|
|
421 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
422 | # endif |
|
|
423 | # ifndef SFD_CLOEXEC |
|
|
424 | # ifdef O_CLOEXEC |
|
|
425 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
426 | # else |
|
|
427 | # define SFD_CLOEXEC 02000000 |
|
|
428 | # endif |
|
|
429 | # endif |
|
|
430 | # ifdef __cplusplus |
|
|
431 | extern "C" { |
|
|
432 | # endif |
|
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433 | int signalfd (int fd, const sigset_t *mask, int flags); |
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434 | |
|
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435 | struct signalfd_siginfo |
|
|
436 | { |
|
|
437 | uint32_t ssi_signo; |
|
|
438 | char pad[128 - sizeof (uint32_t)]; |
|
|
439 | }; |
|
|
440 | # ifdef __cplusplus |
|
|
441 | } |
|
|
442 | # endif |
|
|
443 | #endif |
|
|
444 | |
|
|
445 | |
346 | /**/ |
446 | /**/ |
347 | |
447 | |
348 | #if EV_VERIFY >= 3 |
448 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
449 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
350 | #else |
450 | #else |
351 | # define EV_FREQUENT_CHECK do { } while (0) |
451 | # define EV_FREQUENT_CHECK do { } while (0) |
352 | #endif |
452 | #endif |
353 | |
453 | |
354 | /* |
454 | /* |
… | |
… | |
361 | */ |
461 | */ |
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
462 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
363 | |
463 | |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
464 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
367 | |
466 | |
368 | #if __GNUC__ >= 4 |
467 | #if __GNUC__ >= 4 |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
468 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
370 | # define noinline __attribute__ ((noinline)) |
469 | # define noinline __attribute__ ((noinline)) |
371 | #else |
470 | #else |
… | |
… | |
378 | |
477 | |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
478 | #define expect_false(expr) expect ((expr) != 0, 0) |
380 | #define expect_true(expr) expect ((expr) != 0, 1) |
479 | #define expect_true(expr) expect ((expr) != 0, 1) |
381 | #define inline_size static inline |
480 | #define inline_size static inline |
382 | |
481 | |
383 | #if EV_MINIMAL |
482 | #if EV_FEATURE_CODE |
|
|
483 | # define inline_speed static inline |
|
|
484 | #else |
384 | # define inline_speed static noinline |
485 | # define inline_speed static noinline |
|
|
486 | #endif |
|
|
487 | |
|
|
488 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
489 | |
|
|
490 | #if EV_MINPRI == EV_MAXPRI |
|
|
491 | # define ABSPRI(w) (((W)w), 0) |
385 | #else |
492 | #else |
386 | # define inline_speed static inline |
|
|
387 | #endif |
|
|
388 | |
|
|
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
493 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
494 | #endif |
391 | |
495 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
496 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
497 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
498 | |
395 | typedef ev_watcher *W; |
499 | typedef ev_watcher *W; |
… | |
… | |
407 | |
511 | |
408 | #if EV_USE_MONOTONIC |
512 | #if EV_USE_MONOTONIC |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
513 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
410 | #endif |
514 | #endif |
411 | |
515 | |
|
|
516 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
517 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
518 | #endif |
|
|
519 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
520 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
521 | #endif |
|
|
522 | #ifndef EV_WIN32_CLOSE_FD |
|
|
523 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
524 | #endif |
|
|
525 | |
412 | #ifdef _WIN32 |
526 | #ifdef _WIN32 |
413 | # include "ev_win32.c" |
527 | # include "ev_win32.c" |
414 | #endif |
528 | #endif |
415 | |
529 | |
416 | /*****************************************************************************/ |
530 | /*****************************************************************************/ |
|
|
531 | |
|
|
532 | #if EV_AVOID_STDIO |
|
|
533 | static void noinline |
|
|
534 | ev_printerr (const char *msg) |
|
|
535 | { |
|
|
536 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
537 | } |
|
|
538 | #endif |
417 | |
539 | |
418 | static void (*syserr_cb)(const char *msg); |
540 | static void (*syserr_cb)(const char *msg); |
419 | |
541 | |
420 | void |
542 | void |
421 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
543 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
431 | |
553 | |
432 | if (syserr_cb) |
554 | if (syserr_cb) |
433 | syserr_cb (msg); |
555 | syserr_cb (msg); |
434 | else |
556 | else |
435 | { |
557 | { |
|
|
558 | #if EV_AVOID_STDIO |
|
|
559 | const char *err = strerror (errno); |
|
|
560 | |
|
|
561 | ev_printerr (msg); |
|
|
562 | ev_printerr (": "); |
|
|
563 | ev_printerr (err); |
|
|
564 | ev_printerr ("\n"); |
|
|
565 | #else |
436 | perror (msg); |
566 | perror (msg); |
|
|
567 | #endif |
437 | abort (); |
568 | abort (); |
438 | } |
569 | } |
439 | } |
570 | } |
440 | |
571 | |
441 | static void * |
572 | static void * |
442 | ev_realloc_emul (void *ptr, long size) |
573 | ev_realloc_emul (void *ptr, long size) |
443 | { |
574 | { |
|
|
575 | #if __GLIBC__ |
|
|
576 | return realloc (ptr, size); |
|
|
577 | #else |
444 | /* some systems, notably openbsd and darwin, fail to properly |
578 | /* some systems, notably openbsd and darwin, fail to properly |
445 | * implement realloc (x, 0) (as required by both ansi c-98 and |
579 | * implement realloc (x, 0) (as required by both ansi c-89 and |
446 | * the single unix specification, so work around them here. |
580 | * the single unix specification, so work around them here. |
447 | */ |
581 | */ |
448 | |
582 | |
449 | if (size) |
583 | if (size) |
450 | return realloc (ptr, size); |
584 | return realloc (ptr, size); |
451 | |
585 | |
452 | free (ptr); |
586 | free (ptr); |
453 | return 0; |
587 | return 0; |
|
|
588 | #endif |
454 | } |
589 | } |
455 | |
590 | |
456 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
591 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
457 | |
592 | |
458 | void |
593 | void |
… | |
… | |
466 | { |
601 | { |
467 | ptr = alloc (ptr, size); |
602 | ptr = alloc (ptr, size); |
468 | |
603 | |
469 | if (!ptr && size) |
604 | if (!ptr && size) |
470 | { |
605 | { |
|
|
606 | #if EV_AVOID_STDIO |
|
|
607 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
608 | #else |
471 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
609 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
610 | #endif |
472 | abort (); |
611 | abort (); |
473 | } |
612 | } |
474 | |
613 | |
475 | return ptr; |
614 | return ptr; |
476 | } |
615 | } |
… | |
… | |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
617 | #define ev_malloc(size) ev_realloc (0, (size)) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
618 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
480 | |
619 | |
481 | /*****************************************************************************/ |
620 | /*****************************************************************************/ |
482 | |
621 | |
|
|
622 | /* set in reify when reification needed */ |
|
|
623 | #define EV_ANFD_REIFY 1 |
|
|
624 | |
|
|
625 | /* file descriptor info structure */ |
483 | typedef struct |
626 | typedef struct |
484 | { |
627 | { |
485 | WL head; |
628 | WL head; |
486 | unsigned char events; |
629 | unsigned char events; /* the events watched for */ |
487 | unsigned char reify; |
630 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
631 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
489 | unsigned char unused; |
632 | unsigned char unused; |
490 | #if EV_USE_EPOLL |
633 | #if EV_USE_EPOLL |
491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
634 | unsigned int egen; /* generation counter to counter epoll bugs */ |
492 | #endif |
635 | #endif |
493 | #if EV_SELECT_IS_WINSOCKET |
636 | #if EV_SELECT_IS_WINSOCKET |
494 | SOCKET handle; |
637 | SOCKET handle; |
495 | #endif |
638 | #endif |
496 | } ANFD; |
639 | } ANFD; |
497 | |
640 | |
|
|
641 | /* stores the pending event set for a given watcher */ |
498 | typedef struct |
642 | typedef struct |
499 | { |
643 | { |
500 | W w; |
644 | W w; |
501 | int events; |
645 | int events; /* the pending event set for the given watcher */ |
502 | } ANPENDING; |
646 | } ANPENDING; |
503 | |
647 | |
504 | #if EV_USE_INOTIFY |
648 | #if EV_USE_INOTIFY |
505 | /* hash table entry per inotify-id */ |
649 | /* hash table entry per inotify-id */ |
506 | typedef struct |
650 | typedef struct |
… | |
… | |
509 | } ANFS; |
653 | } ANFS; |
510 | #endif |
654 | #endif |
511 | |
655 | |
512 | /* Heap Entry */ |
656 | /* Heap Entry */ |
513 | #if EV_HEAP_CACHE_AT |
657 | #if EV_HEAP_CACHE_AT |
|
|
658 | /* a heap element */ |
514 | typedef struct { |
659 | typedef struct { |
515 | ev_tstamp at; |
660 | ev_tstamp at; |
516 | WT w; |
661 | WT w; |
517 | } ANHE; |
662 | } ANHE; |
518 | |
663 | |
519 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
664 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
520 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
665 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
521 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
666 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
522 | #else |
667 | #else |
|
|
668 | /* a heap element */ |
523 | typedef WT ANHE; |
669 | typedef WT ANHE; |
524 | |
670 | |
525 | #define ANHE_w(he) (he) |
671 | #define ANHE_w(he) (he) |
526 | #define ANHE_at(he) (he)->at |
672 | #define ANHE_at(he) (he)->at |
527 | #define ANHE_at_cache(he) |
673 | #define ANHE_at_cache(he) |
… | |
… | |
551 | |
697 | |
552 | static int ev_default_loop_ptr; |
698 | static int ev_default_loop_ptr; |
553 | |
699 | |
554 | #endif |
700 | #endif |
555 | |
701 | |
|
|
702 | #if EV_FEATURE_API |
|
|
703 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
704 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
705 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
706 | #else |
|
|
707 | # define EV_RELEASE_CB (void)0 |
|
|
708 | # define EV_ACQUIRE_CB (void)0 |
|
|
709 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
710 | #endif |
|
|
711 | |
|
|
712 | #define EVUNLOOP_RECURSE 0x80 |
|
|
713 | |
556 | /*****************************************************************************/ |
714 | /*****************************************************************************/ |
557 | |
715 | |
|
|
716 | #ifndef EV_HAVE_EV_TIME |
558 | ev_tstamp |
717 | ev_tstamp |
559 | ev_time (void) |
718 | ev_time (void) |
560 | { |
719 | { |
561 | #if EV_USE_REALTIME |
720 | #if EV_USE_REALTIME |
562 | if (expect_true (have_realtime)) |
721 | if (expect_true (have_realtime)) |
… | |
… | |
569 | |
728 | |
570 | struct timeval tv; |
729 | struct timeval tv; |
571 | gettimeofday (&tv, 0); |
730 | gettimeofday (&tv, 0); |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
731 | return tv.tv_sec + tv.tv_usec * 1e-6; |
573 | } |
732 | } |
|
|
733 | #endif |
574 | |
734 | |
575 | inline_size ev_tstamp |
735 | inline_size ev_tstamp |
576 | get_clock (void) |
736 | get_clock (void) |
577 | { |
737 | { |
578 | #if EV_USE_MONOTONIC |
738 | #if EV_USE_MONOTONIC |
… | |
… | |
614 | |
774 | |
615 | tv.tv_sec = (time_t)delay; |
775 | tv.tv_sec = (time_t)delay; |
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
776 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
617 | |
777 | |
618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
778 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
779 | /* something not guaranteed by newer posix versions, but guaranteed */ |
620 | /* by older ones */ |
780 | /* by older ones */ |
621 | select (0, 0, 0, 0, &tv); |
781 | select (0, 0, 0, 0, &tv); |
622 | #endif |
782 | #endif |
623 | } |
783 | } |
624 | } |
784 | } |
625 | |
785 | |
626 | /*****************************************************************************/ |
786 | /*****************************************************************************/ |
627 | |
787 | |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
788 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
629 | |
789 | |
|
|
790 | /* find a suitable new size for the given array, */ |
|
|
791 | /* hopefully by rounding to a ncie-to-malloc size */ |
630 | inline_size int |
792 | inline_size int |
631 | array_nextsize (int elem, int cur, int cnt) |
793 | array_nextsize (int elem, int cur, int cnt) |
632 | { |
794 | { |
633 | int ncur = cur + 1; |
795 | int ncur = cur + 1; |
634 | |
796 | |
… | |
… | |
680 | #define array_free(stem, idx) \ |
842 | #define array_free(stem, idx) \ |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
843 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
682 | |
844 | |
683 | /*****************************************************************************/ |
845 | /*****************************************************************************/ |
684 | |
846 | |
|
|
847 | /* dummy callback for pending events */ |
|
|
848 | static void noinline |
|
|
849 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
850 | { |
|
|
851 | } |
|
|
852 | |
685 | void noinline |
853 | void noinline |
686 | ev_feed_event (EV_P_ void *w, int revents) |
854 | ev_feed_event (EV_P_ void *w, int revents) |
687 | { |
855 | { |
688 | W w_ = (W)w; |
856 | W w_ = (W)w; |
689 | int pri = ABSPRI (w_); |
857 | int pri = ABSPRI (w_); |
… | |
… | |
724 | } |
892 | } |
725 | |
893 | |
726 | /*****************************************************************************/ |
894 | /*****************************************************************************/ |
727 | |
895 | |
728 | inline_speed void |
896 | inline_speed void |
729 | fd_event (EV_P_ int fd, int revents) |
897 | fd_event_nocheck (EV_P_ int fd, int revents) |
730 | { |
898 | { |
731 | ANFD *anfd = anfds + fd; |
899 | ANFD *anfd = anfds + fd; |
732 | ev_io *w; |
900 | ev_io *w; |
733 | |
901 | |
734 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
902 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
738 | if (ev) |
906 | if (ev) |
739 | ev_feed_event (EV_A_ (W)w, ev); |
907 | ev_feed_event (EV_A_ (W)w, ev); |
740 | } |
908 | } |
741 | } |
909 | } |
742 | |
910 | |
|
|
911 | /* do not submit kernel events for fds that have reify set */ |
|
|
912 | /* because that means they changed while we were polling for new events */ |
|
|
913 | inline_speed void |
|
|
914 | fd_event (EV_P_ int fd, int revents) |
|
|
915 | { |
|
|
916 | ANFD *anfd = anfds + fd; |
|
|
917 | |
|
|
918 | if (expect_true (!anfd->reify)) |
|
|
919 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
920 | } |
|
|
921 | |
743 | void |
922 | void |
744 | ev_feed_fd_event (EV_P_ int fd, int revents) |
923 | ev_feed_fd_event (EV_P_ int fd, int revents) |
745 | { |
924 | { |
746 | if (fd >= 0 && fd < anfdmax) |
925 | if (fd >= 0 && fd < anfdmax) |
747 | fd_event (EV_A_ fd, revents); |
926 | fd_event_nocheck (EV_A_ fd, revents); |
748 | } |
927 | } |
749 | |
928 | |
|
|
929 | /* make sure the external fd watch events are in-sync */ |
|
|
930 | /* with the kernel/libev internal state */ |
750 | inline_size void |
931 | inline_size void |
751 | fd_reify (EV_P) |
932 | fd_reify (EV_P) |
752 | { |
933 | { |
753 | int i; |
934 | int i; |
754 | |
935 | |
… | |
… | |
765 | |
946 | |
766 | #if EV_SELECT_IS_WINSOCKET |
947 | #if EV_SELECT_IS_WINSOCKET |
767 | if (events) |
948 | if (events) |
768 | { |
949 | { |
769 | unsigned long arg; |
950 | unsigned long arg; |
770 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
771 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
951 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
772 | #else |
|
|
773 | anfd->handle = _get_osfhandle (fd); |
|
|
774 | #endif |
|
|
775 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
952 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
776 | } |
953 | } |
777 | #endif |
954 | #endif |
778 | |
955 | |
779 | { |
956 | { |
… | |
… | |
789 | } |
966 | } |
790 | |
967 | |
791 | fdchangecnt = 0; |
968 | fdchangecnt = 0; |
792 | } |
969 | } |
793 | |
970 | |
|
|
971 | /* something about the given fd changed */ |
794 | inline_size void |
972 | inline_size void |
795 | fd_change (EV_P_ int fd, int flags) |
973 | fd_change (EV_P_ int fd, int flags) |
796 | { |
974 | { |
797 | unsigned char reify = anfds [fd].reify; |
975 | unsigned char reify = anfds [fd].reify; |
798 | anfds [fd].reify |= flags; |
976 | anfds [fd].reify |= flags; |
… | |
… | |
803 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
981 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
804 | fdchanges [fdchangecnt - 1] = fd; |
982 | fdchanges [fdchangecnt - 1] = fd; |
805 | } |
983 | } |
806 | } |
984 | } |
807 | |
985 | |
|
|
986 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
808 | inline_speed void |
987 | inline_speed void |
809 | fd_kill (EV_P_ int fd) |
988 | fd_kill (EV_P_ int fd) |
810 | { |
989 | { |
811 | ev_io *w; |
990 | ev_io *w; |
812 | |
991 | |
… | |
… | |
815 | ev_io_stop (EV_A_ w); |
994 | ev_io_stop (EV_A_ w); |
816 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
995 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
817 | } |
996 | } |
818 | } |
997 | } |
819 | |
998 | |
|
|
999 | /* check whether the given fd is actually valid, for error recovery */ |
820 | inline_size int |
1000 | inline_size int |
821 | fd_valid (int fd) |
1001 | fd_valid (int fd) |
822 | { |
1002 | { |
823 | #ifdef _WIN32 |
1003 | #ifdef _WIN32 |
824 | return _get_osfhandle (fd) != -1; |
1004 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
825 | #else |
1005 | #else |
826 | return fcntl (fd, F_GETFD) != -1; |
1006 | return fcntl (fd, F_GETFD) != -1; |
827 | #endif |
1007 | #endif |
828 | } |
1008 | } |
829 | |
1009 | |
… | |
… | |
847 | |
1027 | |
848 | for (fd = anfdmax; fd--; ) |
1028 | for (fd = anfdmax; fd--; ) |
849 | if (anfds [fd].events) |
1029 | if (anfds [fd].events) |
850 | { |
1030 | { |
851 | fd_kill (EV_A_ fd); |
1031 | fd_kill (EV_A_ fd); |
852 | return; |
1032 | break; |
853 | } |
1033 | } |
854 | } |
1034 | } |
855 | |
1035 | |
856 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1036 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
857 | static void noinline |
1037 | static void noinline |
… | |
… | |
862 | for (fd = 0; fd < anfdmax; ++fd) |
1042 | for (fd = 0; fd < anfdmax; ++fd) |
863 | if (anfds [fd].events) |
1043 | if (anfds [fd].events) |
864 | { |
1044 | { |
865 | anfds [fd].events = 0; |
1045 | anfds [fd].events = 0; |
866 | anfds [fd].emask = 0; |
1046 | anfds [fd].emask = 0; |
867 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1047 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
868 | } |
1048 | } |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | /* used to prepare libev internal fd's */ |
|
|
1052 | /* this is not fork-safe */ |
|
|
1053 | inline_speed void |
|
|
1054 | fd_intern (int fd) |
|
|
1055 | { |
|
|
1056 | #ifdef _WIN32 |
|
|
1057 | unsigned long arg = 1; |
|
|
1058 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1059 | #else |
|
|
1060 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1061 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1062 | #endif |
869 | } |
1063 | } |
870 | |
1064 | |
871 | /*****************************************************************************/ |
1065 | /*****************************************************************************/ |
872 | |
1066 | |
873 | /* |
1067 | /* |
… | |
… | |
947 | |
1141 | |
948 | for (;;) |
1142 | for (;;) |
949 | { |
1143 | { |
950 | int c = k << 1; |
1144 | int c = k << 1; |
951 | |
1145 | |
952 | if (c > N + HEAP0 - 1) |
1146 | if (c >= N + HEAP0) |
953 | break; |
1147 | break; |
954 | |
1148 | |
955 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1149 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
956 | ? 1 : 0; |
1150 | ? 1 : 0; |
957 | |
1151 | |
… | |
… | |
989 | |
1183 | |
990 | heap [k] = he; |
1184 | heap [k] = he; |
991 | ev_active (ANHE_w (he)) = k; |
1185 | ev_active (ANHE_w (he)) = k; |
992 | } |
1186 | } |
993 | |
1187 | |
|
|
1188 | /* move an element suitably so it is in a correct place */ |
994 | inline_size void |
1189 | inline_size void |
995 | adjustheap (ANHE *heap, int N, int k) |
1190 | adjustheap (ANHE *heap, int N, int k) |
996 | { |
1191 | { |
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1192 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
998 | upheap (heap, k); |
1193 | upheap (heap, k); |
999 | else |
1194 | else |
1000 | downheap (heap, N, k); |
1195 | downheap (heap, N, k); |
1001 | } |
1196 | } |
1002 | |
1197 | |
… | |
… | |
1012 | upheap (heap, i + HEAP0); |
1207 | upheap (heap, i + HEAP0); |
1013 | } |
1208 | } |
1014 | |
1209 | |
1015 | /*****************************************************************************/ |
1210 | /*****************************************************************************/ |
1016 | |
1211 | |
|
|
1212 | /* associate signal watchers to a signal signal */ |
1017 | typedef struct |
1213 | typedef struct |
1018 | { |
1214 | { |
|
|
1215 | EV_ATOMIC_T pending; |
|
|
1216 | #if EV_MULTIPLICITY |
|
|
1217 | EV_P; |
|
|
1218 | #endif |
1019 | WL head; |
1219 | WL head; |
1020 | EV_ATOMIC_T gotsig; |
|
|
1021 | } ANSIG; |
1220 | } ANSIG; |
1022 | |
1221 | |
1023 | static ANSIG *signals; |
1222 | static ANSIG signals [EV_NSIG - 1]; |
1024 | static int signalmax; |
|
|
1025 | |
|
|
1026 | static EV_ATOMIC_T gotsig; |
|
|
1027 | |
1223 | |
1028 | /*****************************************************************************/ |
1224 | /*****************************************************************************/ |
1029 | |
1225 | |
1030 | inline_speed void |
1226 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1031 | fd_intern (int fd) |
|
|
1032 | { |
|
|
1033 | #ifdef _WIN32 |
|
|
1034 | unsigned long arg = 1; |
|
|
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1036 | #else |
|
|
1037 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1038 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1039 | #endif |
|
|
1040 | } |
|
|
1041 | |
1227 | |
1042 | static void noinline |
1228 | static void noinline |
1043 | evpipe_init (EV_P) |
1229 | evpipe_init (EV_P) |
1044 | { |
1230 | { |
1045 | if (!ev_is_active (&pipeev)) |
1231 | if (!ev_is_active (&pipe_w)) |
1046 | { |
1232 | { |
1047 | #if EV_USE_EVENTFD |
1233 | # if EV_USE_EVENTFD |
|
|
1234 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1235 | if (evfd < 0 && errno == EINVAL) |
1048 | if ((evfd = eventfd (0, 0)) >= 0) |
1236 | evfd = eventfd (0, 0); |
|
|
1237 | |
|
|
1238 | if (evfd >= 0) |
1049 | { |
1239 | { |
1050 | evpipe [0] = -1; |
1240 | evpipe [0] = -1; |
1051 | fd_intern (evfd); |
1241 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1052 | ev_io_set (&pipeev, evfd, EV_READ); |
1242 | ev_io_set (&pipe_w, evfd, EV_READ); |
1053 | } |
1243 | } |
1054 | else |
1244 | else |
1055 | #endif |
1245 | # endif |
1056 | { |
1246 | { |
1057 | while (pipe (evpipe)) |
1247 | while (pipe (evpipe)) |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
1248 | ev_syserr ("(libev) error creating signal/async pipe"); |
1059 | |
1249 | |
1060 | fd_intern (evpipe [0]); |
1250 | fd_intern (evpipe [0]); |
1061 | fd_intern (evpipe [1]); |
1251 | fd_intern (evpipe [1]); |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1252 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1063 | } |
1253 | } |
1064 | |
1254 | |
1065 | ev_io_start (EV_A_ &pipeev); |
1255 | ev_io_start (EV_A_ &pipe_w); |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1256 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1067 | } |
1257 | } |
1068 | } |
1258 | } |
1069 | |
1259 | |
1070 | inline_size void |
1260 | inline_size void |
1071 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1261 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1072 | { |
1262 | { |
1073 | if (!*flag) |
1263 | if (!*flag) |
1074 | { |
1264 | { |
1075 | int old_errno = errno; /* save errno because write might clobber it */ |
1265 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1266 | char dummy; |
1076 | |
1267 | |
1077 | *flag = 1; |
1268 | *flag = 1; |
1078 | |
1269 | |
1079 | #if EV_USE_EVENTFD |
1270 | #if EV_USE_EVENTFD |
1080 | if (evfd >= 0) |
1271 | if (evfd >= 0) |
… | |
… | |
1082 | uint64_t counter = 1; |
1273 | uint64_t counter = 1; |
1083 | write (evfd, &counter, sizeof (uint64_t)); |
1274 | write (evfd, &counter, sizeof (uint64_t)); |
1084 | } |
1275 | } |
1085 | else |
1276 | else |
1086 | #endif |
1277 | #endif |
1087 | write (evpipe [1], &old_errno, 1); |
1278 | write (evpipe [1], &dummy, 1); |
1088 | |
1279 | |
1089 | errno = old_errno; |
1280 | errno = old_errno; |
1090 | } |
1281 | } |
1091 | } |
1282 | } |
1092 | |
1283 | |
|
|
1284 | /* called whenever the libev signal pipe */ |
|
|
1285 | /* got some events (signal, async) */ |
1093 | static void |
1286 | static void |
1094 | pipecb (EV_P_ ev_io *iow, int revents) |
1287 | pipecb (EV_P_ ev_io *iow, int revents) |
1095 | { |
1288 | { |
|
|
1289 | int i; |
|
|
1290 | |
1096 | #if EV_USE_EVENTFD |
1291 | #if EV_USE_EVENTFD |
1097 | if (evfd >= 0) |
1292 | if (evfd >= 0) |
1098 | { |
1293 | { |
1099 | uint64_t counter; |
1294 | uint64_t counter; |
1100 | read (evfd, &counter, sizeof (uint64_t)); |
1295 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1104 | { |
1299 | { |
1105 | char dummy; |
1300 | char dummy; |
1106 | read (evpipe [0], &dummy, 1); |
1301 | read (evpipe [0], &dummy, 1); |
1107 | } |
1302 | } |
1108 | |
1303 | |
1109 | if (gotsig && ev_is_default_loop (EV_A)) |
1304 | if (sig_pending) |
1110 | { |
1305 | { |
1111 | int signum; |
1306 | sig_pending = 0; |
1112 | gotsig = 0; |
|
|
1113 | |
1307 | |
1114 | for (signum = signalmax; signum--; ) |
1308 | for (i = EV_NSIG - 1; i--; ) |
1115 | if (signals [signum].gotsig) |
1309 | if (expect_false (signals [i].pending)) |
1116 | ev_feed_signal_event (EV_A_ signum + 1); |
1310 | ev_feed_signal_event (EV_A_ i + 1); |
1117 | } |
1311 | } |
1118 | |
1312 | |
1119 | #if EV_ASYNC_ENABLE |
1313 | #if EV_ASYNC_ENABLE |
1120 | if (gotasync) |
1314 | if (async_pending) |
1121 | { |
1315 | { |
1122 | int i; |
1316 | async_pending = 0; |
1123 | gotasync = 0; |
|
|
1124 | |
1317 | |
1125 | for (i = asynccnt; i--; ) |
1318 | for (i = asynccnt; i--; ) |
1126 | if (asyncs [i]->sent) |
1319 | if (asyncs [i]->sent) |
1127 | { |
1320 | { |
1128 | asyncs [i]->sent = 0; |
1321 | asyncs [i]->sent = 0; |
… | |
… | |
1136 | |
1329 | |
1137 | static void |
1330 | static void |
1138 | ev_sighandler (int signum) |
1331 | ev_sighandler (int signum) |
1139 | { |
1332 | { |
1140 | #if EV_MULTIPLICITY |
1333 | #if EV_MULTIPLICITY |
1141 | struct ev_loop *loop = &default_loop_struct; |
1334 | EV_P = signals [signum - 1].loop; |
1142 | #endif |
1335 | #endif |
1143 | |
1336 | |
1144 | #if _WIN32 |
1337 | #ifdef _WIN32 |
1145 | signal (signum, ev_sighandler); |
1338 | signal (signum, ev_sighandler); |
1146 | #endif |
1339 | #endif |
1147 | |
1340 | |
1148 | signals [signum - 1].gotsig = 1; |
1341 | signals [signum - 1].pending = 1; |
1149 | evpipe_write (EV_A_ &gotsig); |
1342 | evpipe_write (EV_A_ &sig_pending); |
1150 | } |
1343 | } |
1151 | |
1344 | |
1152 | void noinline |
1345 | void noinline |
1153 | ev_feed_signal_event (EV_P_ int signum) |
1346 | ev_feed_signal_event (EV_P_ int signum) |
1154 | { |
1347 | { |
1155 | WL w; |
1348 | WL w; |
1156 | |
1349 | |
|
|
1350 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1351 | return; |
|
|
1352 | |
|
|
1353 | --signum; |
|
|
1354 | |
1157 | #if EV_MULTIPLICITY |
1355 | #if EV_MULTIPLICITY |
1158 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1356 | /* it is permissible to try to feed a signal to the wrong loop */ |
1159 | #endif |
1357 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1160 | |
1358 | |
1161 | --signum; |
1359 | if (expect_false (signals [signum].loop != EV_A)) |
1162 | |
|
|
1163 | if (signum < 0 || signum >= signalmax) |
|
|
1164 | return; |
1360 | return; |
|
|
1361 | #endif |
1165 | |
1362 | |
1166 | signals [signum].gotsig = 0; |
1363 | signals [signum].pending = 0; |
1167 | |
1364 | |
1168 | for (w = signals [signum].head; w; w = w->next) |
1365 | for (w = signals [signum].head; w; w = w->next) |
1169 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1366 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1170 | } |
1367 | } |
1171 | |
1368 | |
|
|
1369 | #if EV_USE_SIGNALFD |
|
|
1370 | static void |
|
|
1371 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1372 | { |
|
|
1373 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1374 | |
|
|
1375 | for (;;) |
|
|
1376 | { |
|
|
1377 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1378 | |
|
|
1379 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1380 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1381 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1382 | |
|
|
1383 | if (res < (ssize_t)sizeof (si)) |
|
|
1384 | break; |
|
|
1385 | } |
|
|
1386 | } |
|
|
1387 | #endif |
|
|
1388 | |
|
|
1389 | #endif |
|
|
1390 | |
1172 | /*****************************************************************************/ |
1391 | /*****************************************************************************/ |
1173 | |
1392 | |
|
|
1393 | #if EV_CHILD_ENABLE |
1174 | static WL childs [EV_PID_HASHSIZE]; |
1394 | static WL childs [EV_PID_HASHSIZE]; |
1175 | |
|
|
1176 | #ifndef _WIN32 |
|
|
1177 | |
1395 | |
1178 | static ev_signal childev; |
1396 | static ev_signal childev; |
1179 | |
1397 | |
1180 | #ifndef WIFCONTINUED |
1398 | #ifndef WIFCONTINUED |
1181 | # define WIFCONTINUED(status) 0 |
1399 | # define WIFCONTINUED(status) 0 |
1182 | #endif |
1400 | #endif |
1183 | |
1401 | |
|
|
1402 | /* handle a single child status event */ |
1184 | inline_speed void |
1403 | inline_speed void |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
1404 | child_reap (EV_P_ int chain, int pid, int status) |
1186 | { |
1405 | { |
1187 | ev_child *w; |
1406 | ev_child *w; |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1407 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1189 | |
1408 | |
1190 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1409 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1191 | { |
1410 | { |
1192 | if ((w->pid == pid || !w->pid) |
1411 | if ((w->pid == pid || !w->pid) |
1193 | && (!traced || (w->flags & 1))) |
1412 | && (!traced || (w->flags & 1))) |
1194 | { |
1413 | { |
1195 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1414 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1202 | |
1421 | |
1203 | #ifndef WCONTINUED |
1422 | #ifndef WCONTINUED |
1204 | # define WCONTINUED 0 |
1423 | # define WCONTINUED 0 |
1205 | #endif |
1424 | #endif |
1206 | |
1425 | |
|
|
1426 | /* called on sigchld etc., calls waitpid */ |
1207 | static void |
1427 | static void |
1208 | childcb (EV_P_ ev_signal *sw, int revents) |
1428 | childcb (EV_P_ ev_signal *sw, int revents) |
1209 | { |
1429 | { |
1210 | int pid, status; |
1430 | int pid, status; |
1211 | |
1431 | |
… | |
… | |
1219 | /* make sure we are called again until all children have been reaped */ |
1439 | /* make sure we are called again until all children have been reaped */ |
1220 | /* we need to do it this way so that the callback gets called before we continue */ |
1440 | /* we need to do it this way so that the callback gets called before we continue */ |
1221 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1441 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1222 | |
1442 | |
1223 | child_reap (EV_A_ pid, pid, status); |
1443 | child_reap (EV_A_ pid, pid, status); |
1224 | if (EV_PID_HASHSIZE > 1) |
1444 | if ((EV_PID_HASHSIZE) > 1) |
1225 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1445 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1226 | } |
1446 | } |
1227 | |
1447 | |
1228 | #endif |
1448 | #endif |
1229 | |
1449 | |
… | |
… | |
1296 | #ifdef __APPLE__ |
1516 | #ifdef __APPLE__ |
1297 | /* only select works correctly on that "unix-certified" platform */ |
1517 | /* only select works correctly on that "unix-certified" platform */ |
1298 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1518 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1299 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1519 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1300 | #endif |
1520 | #endif |
|
|
1521 | #ifdef __FreeBSD__ |
|
|
1522 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1523 | #endif |
1301 | |
1524 | |
1302 | return flags; |
1525 | return flags; |
1303 | } |
1526 | } |
1304 | |
1527 | |
1305 | unsigned int |
1528 | unsigned int |
… | |
… | |
1318 | ev_backend (EV_P) |
1541 | ev_backend (EV_P) |
1319 | { |
1542 | { |
1320 | return backend; |
1543 | return backend; |
1321 | } |
1544 | } |
1322 | |
1545 | |
|
|
1546 | #if EV_FEATURE_API |
1323 | unsigned int |
1547 | unsigned int |
1324 | ev_loop_count (EV_P) |
1548 | ev_iteration (EV_P) |
1325 | { |
1549 | { |
1326 | return loop_count; |
1550 | return loop_count; |
1327 | } |
1551 | } |
1328 | |
1552 | |
|
|
1553 | unsigned int |
|
|
1554 | ev_depth (EV_P) |
|
|
1555 | { |
|
|
1556 | return loop_depth; |
|
|
1557 | } |
|
|
1558 | |
1329 | void |
1559 | void |
1330 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1560 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1331 | { |
1561 | { |
1332 | io_blocktime = interval; |
1562 | io_blocktime = interval; |
1333 | } |
1563 | } |
… | |
… | |
1336 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1566 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1337 | { |
1567 | { |
1338 | timeout_blocktime = interval; |
1568 | timeout_blocktime = interval; |
1339 | } |
1569 | } |
1340 | |
1570 | |
|
|
1571 | void |
|
|
1572 | ev_set_userdata (EV_P_ void *data) |
|
|
1573 | { |
|
|
1574 | userdata = data; |
|
|
1575 | } |
|
|
1576 | |
|
|
1577 | void * |
|
|
1578 | ev_userdata (EV_P) |
|
|
1579 | { |
|
|
1580 | return userdata; |
|
|
1581 | } |
|
|
1582 | |
|
|
1583 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1584 | { |
|
|
1585 | invoke_cb = invoke_pending_cb; |
|
|
1586 | } |
|
|
1587 | |
|
|
1588 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1589 | { |
|
|
1590 | release_cb = release; |
|
|
1591 | acquire_cb = acquire; |
|
|
1592 | } |
|
|
1593 | #endif |
|
|
1594 | |
|
|
1595 | /* initialise a loop structure, must be zero-initialised */ |
1341 | static void noinline |
1596 | static void noinline |
1342 | loop_init (EV_P_ unsigned int flags) |
1597 | loop_init (EV_P_ unsigned int flags) |
1343 | { |
1598 | { |
1344 | if (!backend) |
1599 | if (!backend) |
1345 | { |
1600 | { |
… | |
… | |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1616 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1362 | have_monotonic = 1; |
1617 | have_monotonic = 1; |
1363 | } |
1618 | } |
1364 | #endif |
1619 | #endif |
1365 | |
1620 | |
|
|
1621 | /* pid check not overridable via env */ |
|
|
1622 | #ifndef _WIN32 |
|
|
1623 | if (flags & EVFLAG_FORKCHECK) |
|
|
1624 | curpid = getpid (); |
|
|
1625 | #endif |
|
|
1626 | |
|
|
1627 | if (!(flags & EVFLAG_NOENV) |
|
|
1628 | && !enable_secure () |
|
|
1629 | && getenv ("LIBEV_FLAGS")) |
|
|
1630 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1631 | |
1366 | ev_rt_now = ev_time (); |
1632 | ev_rt_now = ev_time (); |
1367 | mn_now = get_clock (); |
1633 | mn_now = get_clock (); |
1368 | now_floor = mn_now; |
1634 | now_floor = mn_now; |
1369 | rtmn_diff = ev_rt_now - mn_now; |
1635 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1636 | #if EV_FEATURE_API |
|
|
1637 | invoke_cb = ev_invoke_pending; |
|
|
1638 | #endif |
1370 | |
1639 | |
1371 | io_blocktime = 0.; |
1640 | io_blocktime = 0.; |
1372 | timeout_blocktime = 0.; |
1641 | timeout_blocktime = 0.; |
1373 | backend = 0; |
1642 | backend = 0; |
1374 | backend_fd = -1; |
1643 | backend_fd = -1; |
1375 | gotasync = 0; |
1644 | sig_pending = 0; |
|
|
1645 | #if EV_ASYNC_ENABLE |
|
|
1646 | async_pending = 0; |
|
|
1647 | #endif |
1376 | #if EV_USE_INOTIFY |
1648 | #if EV_USE_INOTIFY |
1377 | fs_fd = -2; |
1649 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1378 | #endif |
1650 | #endif |
1379 | |
1651 | #if EV_USE_SIGNALFD |
1380 | /* pid check not overridable via env */ |
1652 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1381 | #ifndef _WIN32 |
|
|
1382 | if (flags & EVFLAG_FORKCHECK) |
|
|
1383 | curpid = getpid (); |
|
|
1384 | #endif |
1653 | #endif |
1385 | |
|
|
1386 | if (!(flags & EVFLAG_NOENV) |
|
|
1387 | && !enable_secure () |
|
|
1388 | && getenv ("LIBEV_FLAGS")) |
|
|
1389 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1390 | |
1654 | |
1391 | if (!(flags & 0x0000ffffU)) |
1655 | if (!(flags & 0x0000ffffU)) |
1392 | flags |= ev_recommended_backends (); |
1656 | flags |= ev_recommended_backends (); |
1393 | |
1657 | |
1394 | #if EV_USE_PORT |
1658 | #if EV_USE_PORT |
… | |
… | |
1405 | #endif |
1669 | #endif |
1406 | #if EV_USE_SELECT |
1670 | #if EV_USE_SELECT |
1407 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1671 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1408 | #endif |
1672 | #endif |
1409 | |
1673 | |
|
|
1674 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1675 | |
|
|
1676 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1410 | ev_init (&pipeev, pipecb); |
1677 | ev_init (&pipe_w, pipecb); |
1411 | ev_set_priority (&pipeev, EV_MAXPRI); |
1678 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1679 | #endif |
1412 | } |
1680 | } |
1413 | } |
1681 | } |
1414 | |
1682 | |
|
|
1683 | /* free up a loop structure */ |
1415 | static void noinline |
1684 | static void noinline |
1416 | loop_destroy (EV_P) |
1685 | loop_destroy (EV_P) |
1417 | { |
1686 | { |
1418 | int i; |
1687 | int i; |
1419 | |
1688 | |
1420 | if (ev_is_active (&pipeev)) |
1689 | if (ev_is_active (&pipe_w)) |
1421 | { |
1690 | { |
1422 | ev_ref (EV_A); /* signal watcher */ |
1691 | /*ev_ref (EV_A);*/ |
1423 | ev_io_stop (EV_A_ &pipeev); |
1692 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1424 | |
1693 | |
1425 | #if EV_USE_EVENTFD |
1694 | #if EV_USE_EVENTFD |
1426 | if (evfd >= 0) |
1695 | if (evfd >= 0) |
1427 | close (evfd); |
1696 | close (evfd); |
1428 | #endif |
1697 | #endif |
1429 | |
1698 | |
1430 | if (evpipe [0] >= 0) |
1699 | if (evpipe [0] >= 0) |
1431 | { |
1700 | { |
1432 | close (evpipe [0]); |
1701 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1433 | close (evpipe [1]); |
1702 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1434 | } |
1703 | } |
1435 | } |
1704 | } |
|
|
1705 | |
|
|
1706 | #if EV_USE_SIGNALFD |
|
|
1707 | if (ev_is_active (&sigfd_w)) |
|
|
1708 | close (sigfd); |
|
|
1709 | #endif |
1436 | |
1710 | |
1437 | #if EV_USE_INOTIFY |
1711 | #if EV_USE_INOTIFY |
1438 | if (fs_fd >= 0) |
1712 | if (fs_fd >= 0) |
1439 | close (fs_fd); |
1713 | close (fs_fd); |
1440 | #endif |
1714 | #endif |
… | |
… | |
1464 | #if EV_IDLE_ENABLE |
1738 | #if EV_IDLE_ENABLE |
1465 | array_free (idle, [i]); |
1739 | array_free (idle, [i]); |
1466 | #endif |
1740 | #endif |
1467 | } |
1741 | } |
1468 | |
1742 | |
1469 | ev_free (anfds); anfdmax = 0; |
1743 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1470 | |
1744 | |
1471 | /* have to use the microsoft-never-gets-it-right macro */ |
1745 | /* have to use the microsoft-never-gets-it-right macro */ |
1472 | array_free (rfeed, EMPTY); |
1746 | array_free (rfeed, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
1747 | array_free (fdchange, EMPTY); |
1474 | array_free (timer, EMPTY); |
1748 | array_free (timer, EMPTY); |
… | |
… | |
1505 | #endif |
1779 | #endif |
1506 | #if EV_USE_INOTIFY |
1780 | #if EV_USE_INOTIFY |
1507 | infy_fork (EV_A); |
1781 | infy_fork (EV_A); |
1508 | #endif |
1782 | #endif |
1509 | |
1783 | |
1510 | if (ev_is_active (&pipeev)) |
1784 | if (ev_is_active (&pipe_w)) |
1511 | { |
1785 | { |
1512 | /* this "locks" the handlers against writing to the pipe */ |
1786 | /* this "locks" the handlers against writing to the pipe */ |
1513 | /* while we modify the fd vars */ |
1787 | /* while we modify the fd vars */ |
1514 | gotsig = 1; |
1788 | sig_pending = 1; |
1515 | #if EV_ASYNC_ENABLE |
1789 | #if EV_ASYNC_ENABLE |
1516 | gotasync = 1; |
1790 | async_pending = 1; |
1517 | #endif |
1791 | #endif |
1518 | |
1792 | |
1519 | ev_ref (EV_A); |
1793 | ev_ref (EV_A); |
1520 | ev_io_stop (EV_A_ &pipeev); |
1794 | ev_io_stop (EV_A_ &pipe_w); |
1521 | |
1795 | |
1522 | #if EV_USE_EVENTFD |
1796 | #if EV_USE_EVENTFD |
1523 | if (evfd >= 0) |
1797 | if (evfd >= 0) |
1524 | close (evfd); |
1798 | close (evfd); |
1525 | #endif |
1799 | #endif |
1526 | |
1800 | |
1527 | if (evpipe [0] >= 0) |
1801 | if (evpipe [0] >= 0) |
1528 | { |
1802 | { |
1529 | close (evpipe [0]); |
1803 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1530 | close (evpipe [1]); |
1804 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1531 | } |
1805 | } |
1532 | |
1806 | |
|
|
1807 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1533 | evpipe_init (EV_A); |
1808 | evpipe_init (EV_A); |
1534 | /* now iterate over everything, in case we missed something */ |
1809 | /* now iterate over everything, in case we missed something */ |
1535 | pipecb (EV_A_ &pipeev, EV_READ); |
1810 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1811 | #endif |
1536 | } |
1812 | } |
1537 | |
1813 | |
1538 | postfork = 0; |
1814 | postfork = 0; |
1539 | } |
1815 | } |
1540 | |
1816 | |
1541 | #if EV_MULTIPLICITY |
1817 | #if EV_MULTIPLICITY |
1542 | |
1818 | |
1543 | struct ev_loop * |
1819 | struct ev_loop * |
1544 | ev_loop_new (unsigned int flags) |
1820 | ev_loop_new (unsigned int flags) |
1545 | { |
1821 | { |
1546 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1822 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1547 | |
1823 | |
1548 | memset (loop, 0, sizeof (struct ev_loop)); |
1824 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1549 | |
|
|
1550 | loop_init (EV_A_ flags); |
1825 | loop_init (EV_A_ flags); |
1551 | |
1826 | |
1552 | if (ev_backend (EV_A)) |
1827 | if (ev_backend (EV_A)) |
1553 | return loop; |
1828 | return EV_A; |
1554 | |
1829 | |
1555 | return 0; |
1830 | return 0; |
1556 | } |
1831 | } |
1557 | |
1832 | |
1558 | void |
1833 | void |
… | |
… | |
1565 | void |
1840 | void |
1566 | ev_loop_fork (EV_P) |
1841 | ev_loop_fork (EV_P) |
1567 | { |
1842 | { |
1568 | postfork = 1; /* must be in line with ev_default_fork */ |
1843 | postfork = 1; /* must be in line with ev_default_fork */ |
1569 | } |
1844 | } |
|
|
1845 | #endif /* multiplicity */ |
1570 | |
1846 | |
1571 | #if EV_VERIFY |
1847 | #if EV_VERIFY |
1572 | static void noinline |
1848 | static void noinline |
1573 | verify_watcher (EV_P_ W w) |
1849 | verify_watcher (EV_P_ W w) |
1574 | { |
1850 | { |
… | |
… | |
1602 | verify_watcher (EV_A_ ws [cnt]); |
1878 | verify_watcher (EV_A_ ws [cnt]); |
1603 | } |
1879 | } |
1604 | } |
1880 | } |
1605 | #endif |
1881 | #endif |
1606 | |
1882 | |
|
|
1883 | #if EV_FEATURE_API |
1607 | void |
1884 | void |
1608 | ev_loop_verify (EV_P) |
1885 | ev_verify (EV_P) |
1609 | { |
1886 | { |
1610 | #if EV_VERIFY |
1887 | #if EV_VERIFY |
1611 | int i; |
1888 | int i; |
1612 | WL w; |
1889 | WL w; |
1613 | |
1890 | |
… | |
… | |
1652 | #if EV_ASYNC_ENABLE |
1929 | #if EV_ASYNC_ENABLE |
1653 | assert (asyncmax >= asynccnt); |
1930 | assert (asyncmax >= asynccnt); |
1654 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1931 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1655 | #endif |
1932 | #endif |
1656 | |
1933 | |
|
|
1934 | #if EV_PREPARE_ENABLE |
1657 | assert (preparemax >= preparecnt); |
1935 | assert (preparemax >= preparecnt); |
1658 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1936 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1937 | #endif |
1659 | |
1938 | |
|
|
1939 | #if EV_CHECK_ENABLE |
1660 | assert (checkmax >= checkcnt); |
1940 | assert (checkmax >= checkcnt); |
1661 | array_verify (EV_A_ (W *)checks, checkcnt); |
1941 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1942 | #endif |
1662 | |
1943 | |
1663 | # if 0 |
1944 | # if 0 |
|
|
1945 | #if EV_CHILD_ENABLE |
1664 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1946 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1665 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1947 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1666 | # endif |
1948 | #endif |
1667 | #endif |
1949 | # endif |
|
|
1950 | #endif |
1668 | } |
1951 | } |
1669 | |
1952 | #endif |
1670 | #endif /* multiplicity */ |
|
|
1671 | |
1953 | |
1672 | #if EV_MULTIPLICITY |
1954 | #if EV_MULTIPLICITY |
1673 | struct ev_loop * |
1955 | struct ev_loop * |
1674 | ev_default_loop_init (unsigned int flags) |
1956 | ev_default_loop_init (unsigned int flags) |
1675 | #else |
1957 | #else |
… | |
… | |
1678 | #endif |
1960 | #endif |
1679 | { |
1961 | { |
1680 | if (!ev_default_loop_ptr) |
1962 | if (!ev_default_loop_ptr) |
1681 | { |
1963 | { |
1682 | #if EV_MULTIPLICITY |
1964 | #if EV_MULTIPLICITY |
1683 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1965 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1684 | #else |
1966 | #else |
1685 | ev_default_loop_ptr = 1; |
1967 | ev_default_loop_ptr = 1; |
1686 | #endif |
1968 | #endif |
1687 | |
1969 | |
1688 | loop_init (EV_A_ flags); |
1970 | loop_init (EV_A_ flags); |
1689 | |
1971 | |
1690 | if (ev_backend (EV_A)) |
1972 | if (ev_backend (EV_A)) |
1691 | { |
1973 | { |
1692 | #ifndef _WIN32 |
1974 | #if EV_CHILD_ENABLE |
1693 | ev_signal_init (&childev, childcb, SIGCHLD); |
1975 | ev_signal_init (&childev, childcb, SIGCHLD); |
1694 | ev_set_priority (&childev, EV_MAXPRI); |
1976 | ev_set_priority (&childev, EV_MAXPRI); |
1695 | ev_signal_start (EV_A_ &childev); |
1977 | ev_signal_start (EV_A_ &childev); |
1696 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1978 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1697 | #endif |
1979 | #endif |
… | |
… | |
1705 | |
1987 | |
1706 | void |
1988 | void |
1707 | ev_default_destroy (void) |
1989 | ev_default_destroy (void) |
1708 | { |
1990 | { |
1709 | #if EV_MULTIPLICITY |
1991 | #if EV_MULTIPLICITY |
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
1992 | EV_P = ev_default_loop_ptr; |
1711 | #endif |
1993 | #endif |
1712 | |
1994 | |
1713 | ev_default_loop_ptr = 0; |
1995 | ev_default_loop_ptr = 0; |
1714 | |
1996 | |
1715 | #ifndef _WIN32 |
1997 | #if EV_CHILD_ENABLE |
1716 | ev_ref (EV_A); /* child watcher */ |
1998 | ev_ref (EV_A); /* child watcher */ |
1717 | ev_signal_stop (EV_A_ &childev); |
1999 | ev_signal_stop (EV_A_ &childev); |
1718 | #endif |
2000 | #endif |
1719 | |
2001 | |
1720 | loop_destroy (EV_A); |
2002 | loop_destroy (EV_A); |
… | |
… | |
1722 | |
2004 | |
1723 | void |
2005 | void |
1724 | ev_default_fork (void) |
2006 | ev_default_fork (void) |
1725 | { |
2007 | { |
1726 | #if EV_MULTIPLICITY |
2008 | #if EV_MULTIPLICITY |
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
2009 | EV_P = ev_default_loop_ptr; |
1728 | #endif |
2010 | #endif |
1729 | |
2011 | |
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
2012 | postfork = 1; /* must be in line with ev_loop_fork */ |
1731 | } |
2013 | } |
1732 | |
2014 | |
… | |
… | |
1736 | ev_invoke (EV_P_ void *w, int revents) |
2018 | ev_invoke (EV_P_ void *w, int revents) |
1737 | { |
2019 | { |
1738 | EV_CB_INVOKE ((W)w, revents); |
2020 | EV_CB_INVOKE ((W)w, revents); |
1739 | } |
2021 | } |
1740 | |
2022 | |
1741 | inline_speed void |
2023 | unsigned int |
1742 | call_pending (EV_P) |
2024 | ev_pending_count (EV_P) |
|
|
2025 | { |
|
|
2026 | int pri; |
|
|
2027 | unsigned int count = 0; |
|
|
2028 | |
|
|
2029 | for (pri = NUMPRI; pri--; ) |
|
|
2030 | count += pendingcnt [pri]; |
|
|
2031 | |
|
|
2032 | return count; |
|
|
2033 | } |
|
|
2034 | |
|
|
2035 | void noinline |
|
|
2036 | ev_invoke_pending (EV_P) |
1743 | { |
2037 | { |
1744 | int pri; |
2038 | int pri; |
1745 | |
2039 | |
1746 | for (pri = NUMPRI; pri--; ) |
2040 | for (pri = NUMPRI; pri--; ) |
1747 | while (pendingcnt [pri]) |
2041 | while (pendingcnt [pri]) |
1748 | { |
2042 | { |
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2043 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1750 | |
2044 | |
1751 | if (expect_true (p->w)) |
|
|
1752 | { |
|
|
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
2045 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2046 | /* ^ this is no longer true, as pending_w could be here */ |
1754 | |
2047 | |
1755 | p->w->pending = 0; |
2048 | p->w->pending = 0; |
1756 | EV_CB_INVOKE (p->w, p->events); |
2049 | EV_CB_INVOKE (p->w, p->events); |
1757 | EV_FREQUENT_CHECK; |
2050 | EV_FREQUENT_CHECK; |
1758 | } |
|
|
1759 | } |
2051 | } |
1760 | } |
2052 | } |
1761 | |
2053 | |
1762 | #if EV_IDLE_ENABLE |
2054 | #if EV_IDLE_ENABLE |
|
|
2055 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2056 | /* only when higher priorities are idle" logic */ |
1763 | inline_size void |
2057 | inline_size void |
1764 | idle_reify (EV_P) |
2058 | idle_reify (EV_P) |
1765 | { |
2059 | { |
1766 | if (expect_false (idleall)) |
2060 | if (expect_false (idleall)) |
1767 | { |
2061 | { |
… | |
… | |
1780 | } |
2074 | } |
1781 | } |
2075 | } |
1782 | } |
2076 | } |
1783 | #endif |
2077 | #endif |
1784 | |
2078 | |
|
|
2079 | /* make timers pending */ |
1785 | inline_size void |
2080 | inline_size void |
1786 | timers_reify (EV_P) |
2081 | timers_reify (EV_P) |
1787 | { |
2082 | { |
1788 | EV_FREQUENT_CHECK; |
2083 | EV_FREQUENT_CHECK; |
1789 | |
2084 | |
… | |
… | |
1813 | EV_FREQUENT_CHECK; |
2108 | EV_FREQUENT_CHECK; |
1814 | feed_reverse (EV_A_ (W)w); |
2109 | feed_reverse (EV_A_ (W)w); |
1815 | } |
2110 | } |
1816 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2111 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1817 | |
2112 | |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2113 | feed_reverse_done (EV_A_ EV_TIMER); |
1819 | } |
2114 | } |
1820 | } |
2115 | } |
1821 | |
2116 | |
1822 | #if EV_PERIODIC_ENABLE |
2117 | #if EV_PERIODIC_ENABLE |
|
|
2118 | /* make periodics pending */ |
1823 | inline_size void |
2119 | inline_size void |
1824 | periodics_reify (EV_P) |
2120 | periodics_reify (EV_P) |
1825 | { |
2121 | { |
1826 | EV_FREQUENT_CHECK; |
2122 | EV_FREQUENT_CHECK; |
1827 | |
2123 | |
… | |
… | |
1874 | |
2170 | |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2171 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1876 | } |
2172 | } |
1877 | } |
2173 | } |
1878 | |
2174 | |
|
|
2175 | /* simply recalculate all periodics */ |
|
|
2176 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1879 | static void noinline |
2177 | static void noinline |
1880 | periodics_reschedule (EV_P) |
2178 | periodics_reschedule (EV_P) |
1881 | { |
2179 | { |
1882 | int i; |
2180 | int i; |
1883 | |
2181 | |
… | |
… | |
1896 | |
2194 | |
1897 | reheap (periodics, periodiccnt); |
2195 | reheap (periodics, periodiccnt); |
1898 | } |
2196 | } |
1899 | #endif |
2197 | #endif |
1900 | |
2198 | |
|
|
2199 | /* adjust all timers by a given offset */ |
|
|
2200 | static void noinline |
|
|
2201 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2202 | { |
|
|
2203 | int i; |
|
|
2204 | |
|
|
2205 | for (i = 0; i < timercnt; ++i) |
|
|
2206 | { |
|
|
2207 | ANHE *he = timers + i + HEAP0; |
|
|
2208 | ANHE_w (*he)->at += adjust; |
|
|
2209 | ANHE_at_cache (*he); |
|
|
2210 | } |
|
|
2211 | } |
|
|
2212 | |
|
|
2213 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2214 | /* also detect if there was a timejump, and act accordingly */ |
1901 | inline_speed void |
2215 | inline_speed void |
1902 | time_update (EV_P_ ev_tstamp max_block) |
2216 | time_update (EV_P_ ev_tstamp max_block) |
1903 | { |
2217 | { |
1904 | int i; |
|
|
1905 | |
|
|
1906 | #if EV_USE_MONOTONIC |
2218 | #if EV_USE_MONOTONIC |
1907 | if (expect_true (have_monotonic)) |
2219 | if (expect_true (have_monotonic)) |
1908 | { |
2220 | { |
|
|
2221 | int i; |
1909 | ev_tstamp odiff = rtmn_diff; |
2222 | ev_tstamp odiff = rtmn_diff; |
1910 | |
2223 | |
1911 | mn_now = get_clock (); |
2224 | mn_now = get_clock (); |
1912 | |
2225 | |
1913 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2226 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1939 | ev_rt_now = ev_time (); |
2252 | ev_rt_now = ev_time (); |
1940 | mn_now = get_clock (); |
2253 | mn_now = get_clock (); |
1941 | now_floor = mn_now; |
2254 | now_floor = mn_now; |
1942 | } |
2255 | } |
1943 | |
2256 | |
|
|
2257 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2258 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1944 | # if EV_PERIODIC_ENABLE |
2259 | # if EV_PERIODIC_ENABLE |
1945 | periodics_reschedule (EV_A); |
2260 | periodics_reschedule (EV_A); |
1946 | # endif |
2261 | # endif |
1947 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1948 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1949 | } |
2262 | } |
1950 | else |
2263 | else |
1951 | #endif |
2264 | #endif |
1952 | { |
2265 | { |
1953 | ev_rt_now = ev_time (); |
2266 | ev_rt_now = ev_time (); |
1954 | |
2267 | |
1955 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2268 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1956 | { |
2269 | { |
|
|
2270 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2271 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1957 | #if EV_PERIODIC_ENABLE |
2272 | #if EV_PERIODIC_ENABLE |
1958 | periodics_reschedule (EV_A); |
2273 | periodics_reschedule (EV_A); |
1959 | #endif |
2274 | #endif |
1960 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1961 | for (i = 0; i < timercnt; ++i) |
|
|
1962 | { |
|
|
1963 | ANHE *he = timers + i + HEAP0; |
|
|
1964 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1965 | ANHE_at_cache (*he); |
|
|
1966 | } |
|
|
1967 | } |
2275 | } |
1968 | |
2276 | |
1969 | mn_now = ev_rt_now; |
2277 | mn_now = ev_rt_now; |
1970 | } |
2278 | } |
1971 | } |
2279 | } |
1972 | |
2280 | |
1973 | void |
2281 | void |
1974 | ev_ref (EV_P) |
|
|
1975 | { |
|
|
1976 | ++activecnt; |
|
|
1977 | } |
|
|
1978 | |
|
|
1979 | void |
|
|
1980 | ev_unref (EV_P) |
|
|
1981 | { |
|
|
1982 | --activecnt; |
|
|
1983 | } |
|
|
1984 | |
|
|
1985 | void |
|
|
1986 | ev_now_update (EV_P) |
|
|
1987 | { |
|
|
1988 | time_update (EV_A_ 1e100); |
|
|
1989 | } |
|
|
1990 | |
|
|
1991 | static int loop_done; |
|
|
1992 | |
|
|
1993 | void |
|
|
1994 | ev_loop (EV_P_ int flags) |
2282 | ev_loop (EV_P_ int flags) |
1995 | { |
2283 | { |
|
|
2284 | #if EV_FEATURE_API |
|
|
2285 | ++loop_depth; |
|
|
2286 | #endif |
|
|
2287 | |
|
|
2288 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2289 | |
1996 | loop_done = EVUNLOOP_CANCEL; |
2290 | loop_done = EVUNLOOP_CANCEL; |
1997 | |
2291 | |
1998 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2292 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1999 | |
2293 | |
2000 | do |
2294 | do |
2001 | { |
2295 | { |
2002 | #if EV_VERIFY >= 2 |
2296 | #if EV_VERIFY >= 2 |
2003 | ev_loop_verify (EV_A); |
2297 | ev_verify (EV_A); |
2004 | #endif |
2298 | #endif |
2005 | |
2299 | |
2006 | #ifndef _WIN32 |
2300 | #ifndef _WIN32 |
2007 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2301 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2008 | if (expect_false (getpid () != curpid)) |
2302 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2016 | /* we might have forked, so queue fork handlers */ |
2310 | /* we might have forked, so queue fork handlers */ |
2017 | if (expect_false (postfork)) |
2311 | if (expect_false (postfork)) |
2018 | if (forkcnt) |
2312 | if (forkcnt) |
2019 | { |
2313 | { |
2020 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2314 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2021 | call_pending (EV_A); |
2315 | EV_INVOKE_PENDING; |
2022 | } |
2316 | } |
2023 | #endif |
2317 | #endif |
2024 | |
2318 | |
|
|
2319 | #if EV_PREPARE_ENABLE |
2025 | /* queue prepare watchers (and execute them) */ |
2320 | /* queue prepare watchers (and execute them) */ |
2026 | if (expect_false (preparecnt)) |
2321 | if (expect_false (preparecnt)) |
2027 | { |
2322 | { |
2028 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2323 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2029 | call_pending (EV_A); |
2324 | EV_INVOKE_PENDING; |
2030 | } |
2325 | } |
|
|
2326 | #endif |
|
|
2327 | |
|
|
2328 | if (expect_false (loop_done)) |
|
|
2329 | break; |
2031 | |
2330 | |
2032 | /* we might have forked, so reify kernel state if necessary */ |
2331 | /* we might have forked, so reify kernel state if necessary */ |
2033 | if (expect_false (postfork)) |
2332 | if (expect_false (postfork)) |
2034 | loop_fork (EV_A); |
2333 | loop_fork (EV_A); |
2035 | |
2334 | |
… | |
… | |
2041 | ev_tstamp waittime = 0.; |
2340 | ev_tstamp waittime = 0.; |
2042 | ev_tstamp sleeptime = 0.; |
2341 | ev_tstamp sleeptime = 0.; |
2043 | |
2342 | |
2044 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2343 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2045 | { |
2344 | { |
|
|
2345 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2346 | ev_tstamp prev_mn_now = mn_now; |
|
|
2347 | |
2046 | /* update time to cancel out callback processing overhead */ |
2348 | /* update time to cancel out callback processing overhead */ |
2047 | time_update (EV_A_ 1e100); |
2349 | time_update (EV_A_ 1e100); |
|
|
2350 | |
|
|
2351 | waittime = MAX_BLOCKTIME; |
2048 | |
2352 | |
2049 | if (timercnt) |
2353 | if (timercnt) |
2050 | { |
2354 | { |
2051 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2355 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2052 | if (waittime > to) waittime = to; |
2356 | if (waittime > to) waittime = to; |
… | |
… | |
2058 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2362 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2059 | if (waittime > to) waittime = to; |
2363 | if (waittime > to) waittime = to; |
2060 | } |
2364 | } |
2061 | #endif |
2365 | #endif |
2062 | |
2366 | |
|
|
2367 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2063 | if (expect_false (waittime < timeout_blocktime)) |
2368 | if (expect_false (waittime < timeout_blocktime)) |
2064 | waittime = timeout_blocktime; |
2369 | waittime = timeout_blocktime; |
2065 | |
2370 | |
2066 | sleeptime = waittime - backend_fudge; |
2371 | /* extra check because io_blocktime is commonly 0 */ |
2067 | |
|
|
2068 | if (expect_true (sleeptime > io_blocktime)) |
2372 | if (expect_false (io_blocktime)) |
2069 | sleeptime = io_blocktime; |
|
|
2070 | |
|
|
2071 | if (sleeptime) |
|
|
2072 | { |
2373 | { |
|
|
2374 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2375 | |
|
|
2376 | if (sleeptime > waittime - backend_fudge) |
|
|
2377 | sleeptime = waittime - backend_fudge; |
|
|
2378 | |
|
|
2379 | if (expect_true (sleeptime > 0.)) |
|
|
2380 | { |
2073 | ev_sleep (sleeptime); |
2381 | ev_sleep (sleeptime); |
2074 | waittime -= sleeptime; |
2382 | waittime -= sleeptime; |
|
|
2383 | } |
2075 | } |
2384 | } |
2076 | } |
2385 | } |
2077 | |
2386 | |
|
|
2387 | #if EV_FEATURE_API |
2078 | ++loop_count; |
2388 | ++loop_count; |
|
|
2389 | #endif |
|
|
2390 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2079 | backend_poll (EV_A_ waittime); |
2391 | backend_poll (EV_A_ waittime); |
|
|
2392 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2080 | |
2393 | |
2081 | /* update ev_rt_now, do magic */ |
2394 | /* update ev_rt_now, do magic */ |
2082 | time_update (EV_A_ waittime + sleeptime); |
2395 | time_update (EV_A_ waittime + sleeptime); |
2083 | } |
2396 | } |
2084 | |
2397 | |
… | |
… | |
2091 | #if EV_IDLE_ENABLE |
2404 | #if EV_IDLE_ENABLE |
2092 | /* queue idle watchers unless other events are pending */ |
2405 | /* queue idle watchers unless other events are pending */ |
2093 | idle_reify (EV_A); |
2406 | idle_reify (EV_A); |
2094 | #endif |
2407 | #endif |
2095 | |
2408 | |
|
|
2409 | #if EV_CHECK_ENABLE |
2096 | /* queue check watchers, to be executed first */ |
2410 | /* queue check watchers, to be executed first */ |
2097 | if (expect_false (checkcnt)) |
2411 | if (expect_false (checkcnt)) |
2098 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2412 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2413 | #endif |
2099 | |
2414 | |
2100 | call_pending (EV_A); |
2415 | EV_INVOKE_PENDING; |
2101 | } |
2416 | } |
2102 | while (expect_true ( |
2417 | while (expect_true ( |
2103 | activecnt |
2418 | activecnt |
2104 | && !loop_done |
2419 | && !loop_done |
2105 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2420 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2106 | )); |
2421 | )); |
2107 | |
2422 | |
2108 | if (loop_done == EVUNLOOP_ONE) |
2423 | if (loop_done == EVUNLOOP_ONE) |
2109 | loop_done = EVUNLOOP_CANCEL; |
2424 | loop_done = EVUNLOOP_CANCEL; |
|
|
2425 | |
|
|
2426 | #if EV_FEATURE_API |
|
|
2427 | --loop_depth; |
|
|
2428 | #endif |
2110 | } |
2429 | } |
2111 | |
2430 | |
2112 | void |
2431 | void |
2113 | ev_unloop (EV_P_ int how) |
2432 | ev_unloop (EV_P_ int how) |
2114 | { |
2433 | { |
2115 | loop_done = how; |
2434 | loop_done = how; |
2116 | } |
2435 | } |
2117 | |
2436 | |
|
|
2437 | void |
|
|
2438 | ev_ref (EV_P) |
|
|
2439 | { |
|
|
2440 | ++activecnt; |
|
|
2441 | } |
|
|
2442 | |
|
|
2443 | void |
|
|
2444 | ev_unref (EV_P) |
|
|
2445 | { |
|
|
2446 | --activecnt; |
|
|
2447 | } |
|
|
2448 | |
|
|
2449 | void |
|
|
2450 | ev_now_update (EV_P) |
|
|
2451 | { |
|
|
2452 | time_update (EV_A_ 1e100); |
|
|
2453 | } |
|
|
2454 | |
|
|
2455 | void |
|
|
2456 | ev_suspend (EV_P) |
|
|
2457 | { |
|
|
2458 | ev_now_update (EV_A); |
|
|
2459 | } |
|
|
2460 | |
|
|
2461 | void |
|
|
2462 | ev_resume (EV_P) |
|
|
2463 | { |
|
|
2464 | ev_tstamp mn_prev = mn_now; |
|
|
2465 | |
|
|
2466 | ev_now_update (EV_A); |
|
|
2467 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2468 | #if EV_PERIODIC_ENABLE |
|
|
2469 | /* TODO: really do this? */ |
|
|
2470 | periodics_reschedule (EV_A); |
|
|
2471 | #endif |
|
|
2472 | } |
|
|
2473 | |
2118 | /*****************************************************************************/ |
2474 | /*****************************************************************************/ |
|
|
2475 | /* singly-linked list management, used when the expected list length is short */ |
2119 | |
2476 | |
2120 | inline_size void |
2477 | inline_size void |
2121 | wlist_add (WL *head, WL elem) |
2478 | wlist_add (WL *head, WL elem) |
2122 | { |
2479 | { |
2123 | elem->next = *head; |
2480 | elem->next = *head; |
… | |
… | |
2127 | inline_size void |
2484 | inline_size void |
2128 | wlist_del (WL *head, WL elem) |
2485 | wlist_del (WL *head, WL elem) |
2129 | { |
2486 | { |
2130 | while (*head) |
2487 | while (*head) |
2131 | { |
2488 | { |
2132 | if (*head == elem) |
2489 | if (expect_true (*head == elem)) |
2133 | { |
2490 | { |
2134 | *head = elem->next; |
2491 | *head = elem->next; |
2135 | return; |
2492 | break; |
2136 | } |
2493 | } |
2137 | |
2494 | |
2138 | head = &(*head)->next; |
2495 | head = &(*head)->next; |
2139 | } |
2496 | } |
2140 | } |
2497 | } |
2141 | |
2498 | |
|
|
2499 | /* internal, faster, version of ev_clear_pending */ |
2142 | inline_speed void |
2500 | inline_speed void |
2143 | clear_pending (EV_P_ W w) |
2501 | clear_pending (EV_P_ W w) |
2144 | { |
2502 | { |
2145 | if (w->pending) |
2503 | if (w->pending) |
2146 | { |
2504 | { |
2147 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2505 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2148 | w->pending = 0; |
2506 | w->pending = 0; |
2149 | } |
2507 | } |
2150 | } |
2508 | } |
2151 | |
2509 | |
2152 | int |
2510 | int |
… | |
… | |
2156 | int pending = w_->pending; |
2514 | int pending = w_->pending; |
2157 | |
2515 | |
2158 | if (expect_true (pending)) |
2516 | if (expect_true (pending)) |
2159 | { |
2517 | { |
2160 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2518 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2519 | p->w = (W)&pending_w; |
2161 | w_->pending = 0; |
2520 | w_->pending = 0; |
2162 | p->w = 0; |
|
|
2163 | return p->events; |
2521 | return p->events; |
2164 | } |
2522 | } |
2165 | else |
2523 | else |
2166 | return 0; |
2524 | return 0; |
2167 | } |
2525 | } |
2168 | |
2526 | |
2169 | inline_size void |
2527 | inline_size void |
2170 | pri_adjust (EV_P_ W w) |
2528 | pri_adjust (EV_P_ W w) |
2171 | { |
2529 | { |
2172 | int pri = w->priority; |
2530 | int pri = ev_priority (w); |
2173 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2531 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2174 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2532 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2175 | w->priority = pri; |
2533 | ev_set_priority (w, pri); |
2176 | } |
2534 | } |
2177 | |
2535 | |
2178 | inline_speed void |
2536 | inline_speed void |
2179 | ev_start (EV_P_ W w, int active) |
2537 | ev_start (EV_P_ W w, int active) |
2180 | { |
2538 | { |
… | |
… | |
2199 | |
2557 | |
2200 | if (expect_false (ev_is_active (w))) |
2558 | if (expect_false (ev_is_active (w))) |
2201 | return; |
2559 | return; |
2202 | |
2560 | |
2203 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2561 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2204 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2562 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2205 | |
2563 | |
2206 | EV_FREQUENT_CHECK; |
2564 | EV_FREQUENT_CHECK; |
2207 | |
2565 | |
2208 | ev_start (EV_A_ (W)w, 1); |
2566 | ev_start (EV_A_ (W)w, 1); |
2209 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2567 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2210 | wlist_add (&anfds[fd].head, (WL)w); |
2568 | wlist_add (&anfds[fd].head, (WL)w); |
2211 | |
2569 | |
2212 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2570 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2213 | w->events &= ~EV__IOFDSET; |
2571 | w->events &= ~EV__IOFDSET; |
2214 | |
2572 | |
2215 | EV_FREQUENT_CHECK; |
2573 | EV_FREQUENT_CHECK; |
2216 | } |
2574 | } |
2217 | |
2575 | |
… | |
… | |
2279 | timers [active] = timers [timercnt + HEAP0]; |
2637 | timers [active] = timers [timercnt + HEAP0]; |
2280 | adjustheap (timers, timercnt, active); |
2638 | adjustheap (timers, timercnt, active); |
2281 | } |
2639 | } |
2282 | } |
2640 | } |
2283 | |
2641 | |
2284 | EV_FREQUENT_CHECK; |
|
|
2285 | |
|
|
2286 | ev_at (w) -= mn_now; |
2642 | ev_at (w) -= mn_now; |
2287 | |
2643 | |
2288 | ev_stop (EV_A_ (W)w); |
2644 | ev_stop (EV_A_ (W)w); |
|
|
2645 | |
|
|
2646 | EV_FREQUENT_CHECK; |
2289 | } |
2647 | } |
2290 | |
2648 | |
2291 | void noinline |
2649 | void noinline |
2292 | ev_timer_again (EV_P_ ev_timer *w) |
2650 | ev_timer_again (EV_P_ ev_timer *w) |
2293 | { |
2651 | { |
… | |
… | |
2311 | } |
2669 | } |
2312 | |
2670 | |
2313 | EV_FREQUENT_CHECK; |
2671 | EV_FREQUENT_CHECK; |
2314 | } |
2672 | } |
2315 | |
2673 | |
|
|
2674 | ev_tstamp |
|
|
2675 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2676 | { |
|
|
2677 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2678 | } |
|
|
2679 | |
2316 | #if EV_PERIODIC_ENABLE |
2680 | #if EV_PERIODIC_ENABLE |
2317 | void noinline |
2681 | void noinline |
2318 | ev_periodic_start (EV_P_ ev_periodic *w) |
2682 | ev_periodic_start (EV_P_ ev_periodic *w) |
2319 | { |
2683 | { |
2320 | if (expect_false (ev_is_active (w))) |
2684 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2366 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2730 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2367 | adjustheap (periodics, periodiccnt, active); |
2731 | adjustheap (periodics, periodiccnt, active); |
2368 | } |
2732 | } |
2369 | } |
2733 | } |
2370 | |
2734 | |
2371 | EV_FREQUENT_CHECK; |
|
|
2372 | |
|
|
2373 | ev_stop (EV_A_ (W)w); |
2735 | ev_stop (EV_A_ (W)w); |
|
|
2736 | |
|
|
2737 | EV_FREQUENT_CHECK; |
2374 | } |
2738 | } |
2375 | |
2739 | |
2376 | void noinline |
2740 | void noinline |
2377 | ev_periodic_again (EV_P_ ev_periodic *w) |
2741 | ev_periodic_again (EV_P_ ev_periodic *w) |
2378 | { |
2742 | { |
… | |
… | |
2384 | |
2748 | |
2385 | #ifndef SA_RESTART |
2749 | #ifndef SA_RESTART |
2386 | # define SA_RESTART 0 |
2750 | # define SA_RESTART 0 |
2387 | #endif |
2751 | #endif |
2388 | |
2752 | |
|
|
2753 | #if EV_SIGNAL_ENABLE |
|
|
2754 | |
2389 | void noinline |
2755 | void noinline |
2390 | ev_signal_start (EV_P_ ev_signal *w) |
2756 | ev_signal_start (EV_P_ ev_signal *w) |
2391 | { |
2757 | { |
2392 | #if EV_MULTIPLICITY |
|
|
2393 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2394 | #endif |
|
|
2395 | if (expect_false (ev_is_active (w))) |
2758 | if (expect_false (ev_is_active (w))) |
2396 | return; |
2759 | return; |
2397 | |
2760 | |
2398 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2761 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2399 | |
2762 | |
2400 | evpipe_init (EV_A); |
2763 | #if EV_MULTIPLICITY |
|
|
2764 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2765 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2401 | |
2766 | |
2402 | EV_FREQUENT_CHECK; |
2767 | signals [w->signum - 1].loop = EV_A; |
|
|
2768 | #endif |
2403 | |
2769 | |
|
|
2770 | EV_FREQUENT_CHECK; |
|
|
2771 | |
|
|
2772 | #if EV_USE_SIGNALFD |
|
|
2773 | if (sigfd == -2) |
2404 | { |
2774 | { |
2405 | #ifndef _WIN32 |
2775 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2406 | sigset_t full, prev; |
2776 | if (sigfd < 0 && errno == EINVAL) |
2407 | sigfillset (&full); |
2777 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2408 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2409 | #endif |
|
|
2410 | |
2778 | |
2411 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2779 | if (sigfd >= 0) |
|
|
2780 | { |
|
|
2781 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2412 | |
2782 | |
2413 | #ifndef _WIN32 |
2783 | sigemptyset (&sigfd_set); |
2414 | sigprocmask (SIG_SETMASK, &prev, 0); |
2784 | |
2415 | #endif |
2785 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2786 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2787 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2788 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2789 | } |
2416 | } |
2790 | } |
|
|
2791 | |
|
|
2792 | if (sigfd >= 0) |
|
|
2793 | { |
|
|
2794 | /* TODO: check .head */ |
|
|
2795 | sigaddset (&sigfd_set, w->signum); |
|
|
2796 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2797 | |
|
|
2798 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2799 | } |
|
|
2800 | #endif |
2417 | |
2801 | |
2418 | ev_start (EV_A_ (W)w, 1); |
2802 | ev_start (EV_A_ (W)w, 1); |
2419 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2803 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2420 | |
2804 | |
2421 | if (!((WL)w)->next) |
2805 | if (!((WL)w)->next) |
|
|
2806 | # if EV_USE_SIGNALFD |
|
|
2807 | if (sigfd < 0) /*TODO*/ |
|
|
2808 | # endif |
2422 | { |
2809 | { |
2423 | #if _WIN32 |
2810 | # ifdef _WIN32 |
|
|
2811 | evpipe_init (EV_A); |
|
|
2812 | |
2424 | signal (w->signum, ev_sighandler); |
2813 | signal (w->signum, ev_sighandler); |
2425 | #else |
2814 | # else |
2426 | struct sigaction sa; |
2815 | struct sigaction sa; |
|
|
2816 | |
|
|
2817 | evpipe_init (EV_A); |
|
|
2818 | |
2427 | sa.sa_handler = ev_sighandler; |
2819 | sa.sa_handler = ev_sighandler; |
2428 | sigfillset (&sa.sa_mask); |
2820 | sigfillset (&sa.sa_mask); |
2429 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2821 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2430 | sigaction (w->signum, &sa, 0); |
2822 | sigaction (w->signum, &sa, 0); |
|
|
2823 | |
|
|
2824 | sigemptyset (&sa.sa_mask); |
|
|
2825 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2826 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2431 | #endif |
2827 | #endif |
2432 | } |
2828 | } |
2433 | |
2829 | |
2434 | EV_FREQUENT_CHECK; |
2830 | EV_FREQUENT_CHECK; |
2435 | } |
2831 | } |
2436 | |
2832 | |
2437 | void noinline |
2833 | void noinline |
… | |
… | |
2445 | |
2841 | |
2446 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2842 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2447 | ev_stop (EV_A_ (W)w); |
2843 | ev_stop (EV_A_ (W)w); |
2448 | |
2844 | |
2449 | if (!signals [w->signum - 1].head) |
2845 | if (!signals [w->signum - 1].head) |
|
|
2846 | { |
|
|
2847 | #if EV_MULTIPLICITY |
|
|
2848 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2849 | #endif |
|
|
2850 | #if EV_USE_SIGNALFD |
|
|
2851 | if (sigfd >= 0) |
|
|
2852 | { |
|
|
2853 | sigset_t ss; |
|
|
2854 | |
|
|
2855 | sigemptyset (&ss); |
|
|
2856 | sigaddset (&ss, w->signum); |
|
|
2857 | sigdelset (&sigfd_set, w->signum); |
|
|
2858 | |
|
|
2859 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2860 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2861 | } |
|
|
2862 | else |
|
|
2863 | #endif |
2450 | signal (w->signum, SIG_DFL); |
2864 | signal (w->signum, SIG_DFL); |
|
|
2865 | } |
2451 | |
2866 | |
2452 | EV_FREQUENT_CHECK; |
2867 | EV_FREQUENT_CHECK; |
2453 | } |
2868 | } |
|
|
2869 | |
|
|
2870 | #endif |
|
|
2871 | |
|
|
2872 | #if EV_CHILD_ENABLE |
2454 | |
2873 | |
2455 | void |
2874 | void |
2456 | ev_child_start (EV_P_ ev_child *w) |
2875 | ev_child_start (EV_P_ ev_child *w) |
2457 | { |
2876 | { |
2458 | #if EV_MULTIPLICITY |
2877 | #if EV_MULTIPLICITY |
… | |
… | |
2462 | return; |
2881 | return; |
2463 | |
2882 | |
2464 | EV_FREQUENT_CHECK; |
2883 | EV_FREQUENT_CHECK; |
2465 | |
2884 | |
2466 | ev_start (EV_A_ (W)w, 1); |
2885 | ev_start (EV_A_ (W)w, 1); |
2467 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2886 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2468 | |
2887 | |
2469 | EV_FREQUENT_CHECK; |
2888 | EV_FREQUENT_CHECK; |
2470 | } |
2889 | } |
2471 | |
2890 | |
2472 | void |
2891 | void |
… | |
… | |
2476 | if (expect_false (!ev_is_active (w))) |
2895 | if (expect_false (!ev_is_active (w))) |
2477 | return; |
2896 | return; |
2478 | |
2897 | |
2479 | EV_FREQUENT_CHECK; |
2898 | EV_FREQUENT_CHECK; |
2480 | |
2899 | |
2481 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2900 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2482 | ev_stop (EV_A_ (W)w); |
2901 | ev_stop (EV_A_ (W)w); |
2483 | |
2902 | |
2484 | EV_FREQUENT_CHECK; |
2903 | EV_FREQUENT_CHECK; |
2485 | } |
2904 | } |
|
|
2905 | |
|
|
2906 | #endif |
2486 | |
2907 | |
2487 | #if EV_STAT_ENABLE |
2908 | #if EV_STAT_ENABLE |
2488 | |
2909 | |
2489 | # ifdef _WIN32 |
2910 | # ifdef _WIN32 |
2490 | # undef lstat |
2911 | # undef lstat |
… | |
… | |
2496 | #define MIN_STAT_INTERVAL 0.1074891 |
2917 | #define MIN_STAT_INTERVAL 0.1074891 |
2497 | |
2918 | |
2498 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2919 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2499 | |
2920 | |
2500 | #if EV_USE_INOTIFY |
2921 | #if EV_USE_INOTIFY |
2501 | # define EV_INOTIFY_BUFSIZE 8192 |
2922 | |
|
|
2923 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2924 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2502 | |
2925 | |
2503 | static void noinline |
2926 | static void noinline |
2504 | infy_add (EV_P_ ev_stat *w) |
2927 | infy_add (EV_P_ ev_stat *w) |
2505 | { |
2928 | { |
2506 | 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); |
2929 | 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); |
2507 | |
2930 | |
2508 | if (w->wd < 0) |
2931 | if (w->wd >= 0) |
|
|
2932 | { |
|
|
2933 | struct statfs sfs; |
|
|
2934 | |
|
|
2935 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2936 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2937 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2938 | |
|
|
2939 | if (!fs_2625) |
|
|
2940 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2941 | else if (!statfs (w->path, &sfs) |
|
|
2942 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2943 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2944 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2945 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2946 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2947 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2948 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2949 | else |
|
|
2950 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2509 | { |
2951 | } |
|
|
2952 | else |
|
|
2953 | { |
|
|
2954 | /* can't use inotify, continue to stat */ |
2510 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2955 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2511 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2512 | |
2956 | |
2513 | /* monitor some parent directory for speedup hints */ |
2957 | /* if path is not there, monitor some parent directory for speedup hints */ |
2514 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2958 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2515 | /* but an efficiency issue only */ |
2959 | /* but an efficiency issue only */ |
2516 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2960 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2517 | { |
2961 | { |
2518 | char path [4096]; |
2962 | char path [4096]; |
… | |
… | |
2534 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2978 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2535 | } |
2979 | } |
2536 | } |
2980 | } |
2537 | |
2981 | |
2538 | if (w->wd >= 0) |
2982 | if (w->wd >= 0) |
2539 | { |
|
|
2540 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2983 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2541 | |
2984 | |
2542 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2985 | /* now re-arm timer, if required */ |
2543 | /* unless the filesystem it known to be local, we therefore still poll */ |
2986 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2544 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2545 | struct statfs sfs; |
|
|
2546 | |
|
|
2547 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2548 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2549 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2550 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2551 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2552 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2553 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2554 | return; |
|
|
2555 | |
|
|
2556 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2557 | ev_timer_again (EV_A_ &w->timer); |
2987 | ev_timer_again (EV_A_ &w->timer); |
2558 | } |
2988 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2559 | } |
2989 | } |
2560 | |
2990 | |
2561 | static void noinline |
2991 | static void noinline |
2562 | infy_del (EV_P_ ev_stat *w) |
2992 | infy_del (EV_P_ ev_stat *w) |
2563 | { |
2993 | { |
… | |
… | |
2566 | |
2996 | |
2567 | if (wd < 0) |
2997 | if (wd < 0) |
2568 | return; |
2998 | return; |
2569 | |
2999 | |
2570 | w->wd = -2; |
3000 | w->wd = -2; |
2571 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3001 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2572 | wlist_del (&fs_hash [slot].head, (WL)w); |
3002 | wlist_del (&fs_hash [slot].head, (WL)w); |
2573 | |
3003 | |
2574 | /* remove this watcher, if others are watching it, they will rearm */ |
3004 | /* remove this watcher, if others are watching it, they will rearm */ |
2575 | inotify_rm_watch (fs_fd, wd); |
3005 | inotify_rm_watch (fs_fd, wd); |
2576 | } |
3006 | } |
… | |
… | |
2578 | static void noinline |
3008 | static void noinline |
2579 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3009 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2580 | { |
3010 | { |
2581 | if (slot < 0) |
3011 | if (slot < 0) |
2582 | /* overflow, need to check for all hash slots */ |
3012 | /* overflow, need to check for all hash slots */ |
2583 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3013 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2584 | infy_wd (EV_A_ slot, wd, ev); |
3014 | infy_wd (EV_A_ slot, wd, ev); |
2585 | else |
3015 | else |
2586 | { |
3016 | { |
2587 | WL w_; |
3017 | WL w_; |
2588 | |
3018 | |
2589 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3019 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2590 | { |
3020 | { |
2591 | ev_stat *w = (ev_stat *)w_; |
3021 | ev_stat *w = (ev_stat *)w_; |
2592 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3022 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2593 | |
3023 | |
2594 | if (w->wd == wd || wd == -1) |
3024 | if (w->wd == wd || wd == -1) |
2595 | { |
3025 | { |
2596 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3026 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2597 | { |
3027 | { |
2598 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3028 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2599 | w->wd = -1; |
3029 | w->wd = -1; |
2600 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3030 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2601 | } |
3031 | } |
2602 | |
3032 | |
2603 | stat_timer_cb (EV_A_ &w->timer, 0); |
3033 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2608 | |
3038 | |
2609 | static void |
3039 | static void |
2610 | infy_cb (EV_P_ ev_io *w, int revents) |
3040 | infy_cb (EV_P_ ev_io *w, int revents) |
2611 | { |
3041 | { |
2612 | char buf [EV_INOTIFY_BUFSIZE]; |
3042 | char buf [EV_INOTIFY_BUFSIZE]; |
2613 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2614 | int ofs; |
3043 | int ofs; |
2615 | int len = read (fs_fd, buf, sizeof (buf)); |
3044 | int len = read (fs_fd, buf, sizeof (buf)); |
2616 | |
3045 | |
2617 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3046 | for (ofs = 0; ofs < len; ) |
|
|
3047 | { |
|
|
3048 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2618 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3049 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3050 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3051 | } |
|
|
3052 | } |
|
|
3053 | |
|
|
3054 | inline_size unsigned int |
|
|
3055 | ev_linux_version (void) |
|
|
3056 | { |
|
|
3057 | struct utsname buf; |
|
|
3058 | unsigned int v; |
|
|
3059 | int i; |
|
|
3060 | char *p = buf.release; |
|
|
3061 | |
|
|
3062 | if (uname (&buf)) |
|
|
3063 | return 0; |
|
|
3064 | |
|
|
3065 | for (i = 3+1; --i; ) |
|
|
3066 | { |
|
|
3067 | unsigned int c = 0; |
|
|
3068 | |
|
|
3069 | for (;;) |
|
|
3070 | { |
|
|
3071 | if (*p >= '0' && *p <= '9') |
|
|
3072 | c = c * 10 + *p++ - '0'; |
|
|
3073 | else |
|
|
3074 | { |
|
|
3075 | p += *p == '.'; |
|
|
3076 | break; |
|
|
3077 | } |
|
|
3078 | } |
|
|
3079 | |
|
|
3080 | v = (v << 8) | c; |
|
|
3081 | } |
|
|
3082 | |
|
|
3083 | return v; |
2619 | } |
3084 | } |
2620 | |
3085 | |
2621 | inline_size void |
3086 | inline_size void |
2622 | check_2625 (EV_P) |
3087 | ev_check_2625 (EV_P) |
2623 | { |
3088 | { |
2624 | /* kernels < 2.6.25 are borked |
3089 | /* kernels < 2.6.25 are borked |
2625 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3090 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2626 | */ |
3091 | */ |
2627 | struct utsname buf; |
3092 | if (ev_linux_version () < 0x020619) |
2628 | int major, minor, micro; |
|
|
2629 | |
|
|
2630 | if (uname (&buf)) |
|
|
2631 | return; |
3093 | return; |
2632 | |
3094 | |
2633 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2634 | return; |
|
|
2635 | |
|
|
2636 | if (major < 2 |
|
|
2637 | || (major == 2 && minor < 6) |
|
|
2638 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2639 | return; |
|
|
2640 | |
|
|
2641 | fs_2625 = 1; |
3095 | fs_2625 = 1; |
|
|
3096 | } |
|
|
3097 | |
|
|
3098 | inline_size int |
|
|
3099 | infy_newfd (void) |
|
|
3100 | { |
|
|
3101 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3102 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3103 | if (fd >= 0) |
|
|
3104 | return fd; |
|
|
3105 | #endif |
|
|
3106 | return inotify_init (); |
2642 | } |
3107 | } |
2643 | |
3108 | |
2644 | inline_size void |
3109 | inline_size void |
2645 | infy_init (EV_P) |
3110 | infy_init (EV_P) |
2646 | { |
3111 | { |
2647 | if (fs_fd != -2) |
3112 | if (fs_fd != -2) |
2648 | return; |
3113 | return; |
2649 | |
3114 | |
2650 | fs_fd = -1; |
3115 | fs_fd = -1; |
2651 | |
3116 | |
2652 | check_2625 (EV_A); |
3117 | ev_check_2625 (EV_A); |
2653 | |
3118 | |
2654 | fs_fd = inotify_init (); |
3119 | fs_fd = infy_newfd (); |
2655 | |
3120 | |
2656 | if (fs_fd >= 0) |
3121 | if (fs_fd >= 0) |
2657 | { |
3122 | { |
|
|
3123 | fd_intern (fs_fd); |
2658 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3124 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2659 | ev_set_priority (&fs_w, EV_MAXPRI); |
3125 | ev_set_priority (&fs_w, EV_MAXPRI); |
2660 | ev_io_start (EV_A_ &fs_w); |
3126 | ev_io_start (EV_A_ &fs_w); |
|
|
3127 | ev_unref (EV_A); |
2661 | } |
3128 | } |
2662 | } |
3129 | } |
2663 | |
3130 | |
2664 | inline_size void |
3131 | inline_size void |
2665 | infy_fork (EV_P) |
3132 | infy_fork (EV_P) |
… | |
… | |
2667 | int slot; |
3134 | int slot; |
2668 | |
3135 | |
2669 | if (fs_fd < 0) |
3136 | if (fs_fd < 0) |
2670 | return; |
3137 | return; |
2671 | |
3138 | |
|
|
3139 | ev_ref (EV_A); |
|
|
3140 | ev_io_stop (EV_A_ &fs_w); |
2672 | close (fs_fd); |
3141 | close (fs_fd); |
2673 | fs_fd = inotify_init (); |
3142 | fs_fd = infy_newfd (); |
2674 | |
3143 | |
|
|
3144 | if (fs_fd >= 0) |
|
|
3145 | { |
|
|
3146 | fd_intern (fs_fd); |
|
|
3147 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3148 | ev_io_start (EV_A_ &fs_w); |
|
|
3149 | ev_unref (EV_A); |
|
|
3150 | } |
|
|
3151 | |
2675 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3152 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2676 | { |
3153 | { |
2677 | WL w_ = fs_hash [slot].head; |
3154 | WL w_ = fs_hash [slot].head; |
2678 | fs_hash [slot].head = 0; |
3155 | fs_hash [slot].head = 0; |
2679 | |
3156 | |
2680 | while (w_) |
3157 | while (w_) |
… | |
… | |
2685 | w->wd = -1; |
3162 | w->wd = -1; |
2686 | |
3163 | |
2687 | if (fs_fd >= 0) |
3164 | if (fs_fd >= 0) |
2688 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3165 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2689 | else |
3166 | else |
|
|
3167 | { |
|
|
3168 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3169 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2690 | ev_timer_again (EV_A_ &w->timer); |
3170 | ev_timer_again (EV_A_ &w->timer); |
|
|
3171 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3172 | } |
2691 | } |
3173 | } |
2692 | } |
3174 | } |
2693 | } |
3175 | } |
2694 | |
3176 | |
2695 | #endif |
3177 | #endif |
… | |
… | |
2712 | static void noinline |
3194 | static void noinline |
2713 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3195 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2714 | { |
3196 | { |
2715 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3197 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2716 | |
3198 | |
2717 | /* we copy this here each the time so that */ |
3199 | ev_statdata prev = w->attr; |
2718 | /* prev has the old value when the callback gets invoked */ |
|
|
2719 | w->prev = w->attr; |
|
|
2720 | ev_stat_stat (EV_A_ w); |
3200 | ev_stat_stat (EV_A_ w); |
2721 | |
3201 | |
2722 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3202 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2723 | if ( |
3203 | if ( |
2724 | w->prev.st_dev != w->attr.st_dev |
3204 | prev.st_dev != w->attr.st_dev |
2725 | || w->prev.st_ino != w->attr.st_ino |
3205 | || prev.st_ino != w->attr.st_ino |
2726 | || w->prev.st_mode != w->attr.st_mode |
3206 | || prev.st_mode != w->attr.st_mode |
2727 | || w->prev.st_nlink != w->attr.st_nlink |
3207 | || prev.st_nlink != w->attr.st_nlink |
2728 | || w->prev.st_uid != w->attr.st_uid |
3208 | || prev.st_uid != w->attr.st_uid |
2729 | || w->prev.st_gid != w->attr.st_gid |
3209 | || prev.st_gid != w->attr.st_gid |
2730 | || w->prev.st_rdev != w->attr.st_rdev |
3210 | || prev.st_rdev != w->attr.st_rdev |
2731 | || w->prev.st_size != w->attr.st_size |
3211 | || prev.st_size != w->attr.st_size |
2732 | || w->prev.st_atime != w->attr.st_atime |
3212 | || prev.st_atime != w->attr.st_atime |
2733 | || w->prev.st_mtime != w->attr.st_mtime |
3213 | || prev.st_mtime != w->attr.st_mtime |
2734 | || w->prev.st_ctime != w->attr.st_ctime |
3214 | || prev.st_ctime != w->attr.st_ctime |
2735 | ) { |
3215 | ) { |
|
|
3216 | /* we only update w->prev on actual differences */ |
|
|
3217 | /* in case we test more often than invoke the callback, */ |
|
|
3218 | /* to ensure that prev is always different to attr */ |
|
|
3219 | w->prev = prev; |
|
|
3220 | |
2736 | #if EV_USE_INOTIFY |
3221 | #if EV_USE_INOTIFY |
2737 | if (fs_fd >= 0) |
3222 | if (fs_fd >= 0) |
2738 | { |
3223 | { |
2739 | infy_del (EV_A_ w); |
3224 | infy_del (EV_A_ w); |
2740 | infy_add (EV_A_ w); |
3225 | infy_add (EV_A_ w); |
… | |
… | |
2765 | |
3250 | |
2766 | if (fs_fd >= 0) |
3251 | if (fs_fd >= 0) |
2767 | infy_add (EV_A_ w); |
3252 | infy_add (EV_A_ w); |
2768 | else |
3253 | else |
2769 | #endif |
3254 | #endif |
|
|
3255 | { |
2770 | ev_timer_again (EV_A_ &w->timer); |
3256 | ev_timer_again (EV_A_ &w->timer); |
|
|
3257 | ev_unref (EV_A); |
|
|
3258 | } |
2771 | |
3259 | |
2772 | ev_start (EV_A_ (W)w, 1); |
3260 | ev_start (EV_A_ (W)w, 1); |
2773 | |
3261 | |
2774 | EV_FREQUENT_CHECK; |
3262 | EV_FREQUENT_CHECK; |
2775 | } |
3263 | } |
… | |
… | |
2784 | EV_FREQUENT_CHECK; |
3272 | EV_FREQUENT_CHECK; |
2785 | |
3273 | |
2786 | #if EV_USE_INOTIFY |
3274 | #if EV_USE_INOTIFY |
2787 | infy_del (EV_A_ w); |
3275 | infy_del (EV_A_ w); |
2788 | #endif |
3276 | #endif |
|
|
3277 | |
|
|
3278 | if (ev_is_active (&w->timer)) |
|
|
3279 | { |
|
|
3280 | ev_ref (EV_A); |
2789 | ev_timer_stop (EV_A_ &w->timer); |
3281 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3282 | } |
2790 | |
3283 | |
2791 | ev_stop (EV_A_ (W)w); |
3284 | ev_stop (EV_A_ (W)w); |
2792 | |
3285 | |
2793 | EV_FREQUENT_CHECK; |
3286 | EV_FREQUENT_CHECK; |
2794 | } |
3287 | } |
… | |
… | |
2839 | |
3332 | |
2840 | EV_FREQUENT_CHECK; |
3333 | EV_FREQUENT_CHECK; |
2841 | } |
3334 | } |
2842 | #endif |
3335 | #endif |
2843 | |
3336 | |
|
|
3337 | #if EV_PREPARE_ENABLE |
2844 | void |
3338 | void |
2845 | ev_prepare_start (EV_P_ ev_prepare *w) |
3339 | ev_prepare_start (EV_P_ ev_prepare *w) |
2846 | { |
3340 | { |
2847 | if (expect_false (ev_is_active (w))) |
3341 | if (expect_false (ev_is_active (w))) |
2848 | return; |
3342 | return; |
… | |
… | |
2874 | |
3368 | |
2875 | ev_stop (EV_A_ (W)w); |
3369 | ev_stop (EV_A_ (W)w); |
2876 | |
3370 | |
2877 | EV_FREQUENT_CHECK; |
3371 | EV_FREQUENT_CHECK; |
2878 | } |
3372 | } |
|
|
3373 | #endif |
2879 | |
3374 | |
|
|
3375 | #if EV_CHECK_ENABLE |
2880 | void |
3376 | void |
2881 | ev_check_start (EV_P_ ev_check *w) |
3377 | ev_check_start (EV_P_ ev_check *w) |
2882 | { |
3378 | { |
2883 | if (expect_false (ev_is_active (w))) |
3379 | if (expect_false (ev_is_active (w))) |
2884 | return; |
3380 | return; |
… | |
… | |
2910 | |
3406 | |
2911 | ev_stop (EV_A_ (W)w); |
3407 | ev_stop (EV_A_ (W)w); |
2912 | |
3408 | |
2913 | EV_FREQUENT_CHECK; |
3409 | EV_FREQUENT_CHECK; |
2914 | } |
3410 | } |
|
|
3411 | #endif |
2915 | |
3412 | |
2916 | #if EV_EMBED_ENABLE |
3413 | #if EV_EMBED_ENABLE |
2917 | void noinline |
3414 | void noinline |
2918 | ev_embed_sweep (EV_P_ ev_embed *w) |
3415 | ev_embed_sweep (EV_P_ ev_embed *w) |
2919 | { |
3416 | { |
… | |
… | |
2935 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3432 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2936 | { |
3433 | { |
2937 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3434 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2938 | |
3435 | |
2939 | { |
3436 | { |
2940 | struct ev_loop *loop = w->other; |
3437 | EV_P = w->other; |
2941 | |
3438 | |
2942 | while (fdchangecnt) |
3439 | while (fdchangecnt) |
2943 | { |
3440 | { |
2944 | fd_reify (EV_A); |
3441 | fd_reify (EV_A); |
2945 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3442 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
2953 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3450 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2954 | |
3451 | |
2955 | ev_embed_stop (EV_A_ w); |
3452 | ev_embed_stop (EV_A_ w); |
2956 | |
3453 | |
2957 | { |
3454 | { |
2958 | struct ev_loop *loop = w->other; |
3455 | EV_P = w->other; |
2959 | |
3456 | |
2960 | ev_loop_fork (EV_A); |
3457 | ev_loop_fork (EV_A); |
2961 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3458 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2962 | } |
3459 | } |
2963 | |
3460 | |
… | |
… | |
2977 | { |
3474 | { |
2978 | if (expect_false (ev_is_active (w))) |
3475 | if (expect_false (ev_is_active (w))) |
2979 | return; |
3476 | return; |
2980 | |
3477 | |
2981 | { |
3478 | { |
2982 | struct ev_loop *loop = w->other; |
3479 | EV_P = w->other; |
2983 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3480 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2984 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3481 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2985 | } |
3482 | } |
2986 | |
3483 | |
2987 | EV_FREQUENT_CHECK; |
3484 | EV_FREQUENT_CHECK; |
… | |
… | |
3014 | |
3511 | |
3015 | ev_io_stop (EV_A_ &w->io); |
3512 | ev_io_stop (EV_A_ &w->io); |
3016 | ev_prepare_stop (EV_A_ &w->prepare); |
3513 | ev_prepare_stop (EV_A_ &w->prepare); |
3017 | ev_fork_stop (EV_A_ &w->fork); |
3514 | ev_fork_stop (EV_A_ &w->fork); |
3018 | |
3515 | |
|
|
3516 | ev_stop (EV_A_ (W)w); |
|
|
3517 | |
3019 | EV_FREQUENT_CHECK; |
3518 | EV_FREQUENT_CHECK; |
3020 | } |
3519 | } |
3021 | #endif |
3520 | #endif |
3022 | |
3521 | |
3023 | #if EV_FORK_ENABLE |
3522 | #if EV_FORK_ENABLE |
… | |
… | |
3099 | |
3598 | |
3100 | void |
3599 | void |
3101 | ev_async_send (EV_P_ ev_async *w) |
3600 | ev_async_send (EV_P_ ev_async *w) |
3102 | { |
3601 | { |
3103 | w->sent = 1; |
3602 | w->sent = 1; |
3104 | evpipe_write (EV_A_ &gotasync); |
3603 | evpipe_write (EV_A_ &async_pending); |
3105 | } |
3604 | } |
3106 | #endif |
3605 | #endif |
3107 | |
3606 | |
3108 | /*****************************************************************************/ |
3607 | /*****************************************************************************/ |
3109 | |
3608 | |
… | |
… | |
3149 | { |
3648 | { |
3150 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3649 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3151 | |
3650 | |
3152 | if (expect_false (!once)) |
3651 | if (expect_false (!once)) |
3153 | { |
3652 | { |
3154 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3653 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3155 | return; |
3654 | return; |
3156 | } |
3655 | } |
3157 | |
3656 | |
3158 | once->cb = cb; |
3657 | once->cb = cb; |
3159 | once->arg = arg; |
3658 | once->arg = arg; |
… | |
… | |
3173 | } |
3672 | } |
3174 | } |
3673 | } |
3175 | |
3674 | |
3176 | /*****************************************************************************/ |
3675 | /*****************************************************************************/ |
3177 | |
3676 | |
3178 | #if 0 |
3677 | #if EV_WALK_ENABLE |
3179 | void |
3678 | void |
3180 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3679 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3181 | { |
3680 | { |
3182 | int i, j; |
3681 | int i, j; |
3183 | ev_watcher_list *wl, *wn; |
3682 | ev_watcher_list *wl, *wn; |
… | |
… | |
3199 | #if EV_USE_INOTIFY |
3698 | #if EV_USE_INOTIFY |
3200 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3699 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3201 | ; |
3700 | ; |
3202 | else |
3701 | else |
3203 | #endif |
3702 | #endif |
3204 | if ((ev_io *)wl != &pipeev) |
3703 | if ((ev_io *)wl != &pipe_w) |
3205 | if (types & EV_IO) |
3704 | if (types & EV_IO) |
3206 | cb (EV_A_ EV_IO, wl); |
3705 | cb (EV_A_ EV_IO, wl); |
3207 | |
3706 | |
3208 | wl = wn; |
3707 | wl = wn; |
3209 | } |
3708 | } |
… | |
… | |
3246 | if (types & EV_ASYNC) |
3745 | if (types & EV_ASYNC) |
3247 | for (i = asynccnt; i--; ) |
3746 | for (i = asynccnt; i--; ) |
3248 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3747 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3249 | #endif |
3748 | #endif |
3250 | |
3749 | |
|
|
3750 | #if EV_PREPARE_ENABLE |
3251 | if (types & EV_PREPARE) |
3751 | if (types & EV_PREPARE) |
3252 | for (i = preparecnt; i--; ) |
3752 | for (i = preparecnt; i--; ) |
3253 | #if EV_EMBED_ENABLE |
3753 | # if EV_EMBED_ENABLE |
3254 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3754 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3255 | #endif |
3755 | # endif |
3256 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3756 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3757 | #endif |
3257 | |
3758 | |
|
|
3759 | #if EV_CHECK_ENABLE |
3258 | if (types & EV_CHECK) |
3760 | if (types & EV_CHECK) |
3259 | for (i = checkcnt; i--; ) |
3761 | for (i = checkcnt; i--; ) |
3260 | cb (EV_A_ EV_CHECK, checks [i]); |
3762 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3763 | #endif |
3261 | |
3764 | |
|
|
3765 | #if EV_SIGNAL_ENABLE |
3262 | if (types & EV_SIGNAL) |
3766 | if (types & EV_SIGNAL) |
3263 | for (i = 0; i < signalmax; ++i) |
3767 | for (i = 0; i < EV_NSIG - 1; ++i) |
3264 | for (wl = signals [i].head; wl; ) |
3768 | for (wl = signals [i].head; wl; ) |
3265 | { |
3769 | { |
3266 | wn = wl->next; |
3770 | wn = wl->next; |
3267 | cb (EV_A_ EV_SIGNAL, wl); |
3771 | cb (EV_A_ EV_SIGNAL, wl); |
3268 | wl = wn; |
3772 | wl = wn; |
3269 | } |
3773 | } |
|
|
3774 | #endif |
3270 | |
3775 | |
|
|
3776 | #if EV_CHILD_ENABLE |
3271 | if (types & EV_CHILD) |
3777 | if (types & EV_CHILD) |
3272 | for (i = EV_PID_HASHSIZE; i--; ) |
3778 | for (i = (EV_PID_HASHSIZE); i--; ) |
3273 | for (wl = childs [i]; wl; ) |
3779 | for (wl = childs [i]; wl; ) |
3274 | { |
3780 | { |
3275 | wn = wl->next; |
3781 | wn = wl->next; |
3276 | cb (EV_A_ EV_CHILD, wl); |
3782 | cb (EV_A_ EV_CHILD, wl); |
3277 | wl = wn; |
3783 | wl = wn; |
3278 | } |
3784 | } |
|
|
3785 | #endif |
3279 | /* EV_STAT 0x00001000 /* stat data changed */ |
3786 | /* EV_STAT 0x00001000 /* stat data changed */ |
3280 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3787 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3281 | } |
3788 | } |
3282 | #endif |
3789 | #endif |
3283 | |
3790 | |