1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 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 | * |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
48 | #if HAVE_FLOOR |
48 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
50 | # define EV_USE_FLOOR 1 |
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|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
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53 | |
53 | |
54 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
57 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
115 | # else |
115 | # else |
116 | # undef EV_USE_EPOLL |
116 | # undef EV_USE_EPOLL |
117 | # define EV_USE_EPOLL 0 |
117 | # define EV_USE_EPOLL 0 |
118 | # endif |
118 | # endif |
119 | |
119 | |
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|
120 | # if HAVE_LINUX_AIO_ABI_H |
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|
121 | # ifndef EV_USE_LINUXAIO |
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122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
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123 | # endif |
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124 | # else |
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125 | # undef EV_USE_LINUXAIO |
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126 | # define EV_USE_LINUXAIO 0 |
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|
127 | # endif |
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|
128 | |
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129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
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|
130 | # ifndef EV_USE_IOURING |
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|
131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
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|
132 | # endif |
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|
133 | # else |
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134 | # undef EV_USE_IOURING |
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135 | # define EV_USE_IOURING 0 |
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|
136 | # endif |
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137 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
139 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
123 | # endif |
141 | # endif |
124 | # else |
142 | # else |
… | |
… | |
159 | # endif |
177 | # endif |
160 | # else |
178 | # else |
161 | # undef EV_USE_EVENTFD |
179 | # undef EV_USE_EVENTFD |
162 | # define EV_USE_EVENTFD 0 |
180 | # define EV_USE_EVENTFD 0 |
163 | # endif |
181 | # endif |
164 | |
182 | |
165 | #endif |
183 | #endif |
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184 | |
|
|
185 | /* OS X, in its infinite idiocy, actually HARDCODES |
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|
186 | * a limit of 1024 into their select. Where people have brains, |
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187 | * OS X engineers apparently have a vacuum. Or maybe they were |
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|
188 | * ordered to have a vacuum, or they do anything for money. |
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189 | * This might help. Or not. |
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190 | * Note that this must be defined early, as other include files |
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191 | * will rely on this define as well. |
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192 | */ |
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193 | #define _DARWIN_UNLIMITED_SELECT 1 |
166 | |
194 | |
167 | #include <stdlib.h> |
195 | #include <stdlib.h> |
168 | #include <string.h> |
196 | #include <string.h> |
169 | #include <fcntl.h> |
197 | #include <fcntl.h> |
170 | #include <stddef.h> |
198 | #include <stddef.h> |
… | |
… | |
183 | # include EV_H |
211 | # include EV_H |
184 | #else |
212 | #else |
185 | # include "ev.h" |
213 | # include "ev.h" |
186 | #endif |
214 | #endif |
187 | |
215 | |
188 | EV_CPP(extern "C" {) |
216 | #if EV_NO_THREADS |
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217 | # undef EV_NO_SMP |
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218 | # define EV_NO_SMP 1 |
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219 | # undef ECB_NO_THREADS |
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220 | # define ECB_NO_THREADS 1 |
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221 | #endif |
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222 | #if EV_NO_SMP |
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223 | # undef EV_NO_SMP |
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224 | # define ECB_NO_SMP 1 |
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225 | #endif |
189 | |
226 | |
190 | #ifndef _WIN32 |
227 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
228 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
229 | # include <sys/wait.h> |
193 | # include <unistd.h> |
230 | # include <unistd.h> |
194 | #else |
231 | #else |
195 | # include <io.h> |
232 | # include <io.h> |
196 | # define WIN32_LEAN_AND_MEAN |
233 | # define WIN32_LEAN_AND_MEAN |
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|
234 | # include <winsock2.h> |
197 | # include <windows.h> |
235 | # include <windows.h> |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
236 | # ifndef EV_SELECT_IS_WINSOCKET |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
237 | # define EV_SELECT_IS_WINSOCKET 1 |
200 | # endif |
238 | # endif |
201 | # undef EV_AVOID_STDIO |
239 | # undef EV_AVOID_STDIO |
202 | #endif |
240 | #endif |
203 | |
241 | |
204 | /* OS X, in its infinite idiocy, actually HARDCODES |
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|
205 | * a limit of 1024 into their select. Where people have brains, |
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|
206 | * OS X engineers apparently have a vacuum. Or maybe they were |
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|
207 | * ordered to have a vacuum, or they do anything for money. |
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208 | * This might help. Or not. |
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209 | */ |
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210 | #define _DARWIN_UNLIMITED_SELECT 1 |
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211 | |
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212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
242 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
213 | |
243 | |
214 | /* try to deduce the maximum number of signals on this platform */ |
244 | /* try to deduce the maximum number of signals on this platform */ |
215 | #if defined (EV_NSIG) |
245 | #if defined EV_NSIG |
216 | /* use what's provided */ |
246 | /* use what's provided */ |
217 | #elif defined (NSIG) |
247 | #elif defined NSIG |
218 | # define EV_NSIG (NSIG) |
248 | # define EV_NSIG (NSIG) |
219 | #elif defined(_NSIG) |
249 | #elif defined _NSIG |
220 | # define EV_NSIG (_NSIG) |
250 | # define EV_NSIG (_NSIG) |
221 | #elif defined (SIGMAX) |
251 | #elif defined SIGMAX |
222 | # define EV_NSIG (SIGMAX+1) |
252 | # define EV_NSIG (SIGMAX+1) |
223 | #elif defined (SIG_MAX) |
253 | #elif defined SIG_MAX |
224 | # define EV_NSIG (SIG_MAX+1) |
254 | # define EV_NSIG (SIG_MAX+1) |
225 | #elif defined (_SIG_MAX) |
255 | #elif defined _SIG_MAX |
226 | # define EV_NSIG (_SIG_MAX+1) |
256 | # define EV_NSIG (_SIG_MAX+1) |
227 | #elif defined (MAXSIG) |
257 | #elif defined MAXSIG |
228 | # define EV_NSIG (MAXSIG+1) |
258 | # define EV_NSIG (MAXSIG+1) |
229 | #elif defined (MAX_SIG) |
259 | #elif defined MAX_SIG |
230 | # define EV_NSIG (MAX_SIG+1) |
260 | # define EV_NSIG (MAX_SIG+1) |
231 | #elif defined (SIGARRAYSIZE) |
261 | #elif defined SIGARRAYSIZE |
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
262 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
233 | #elif defined (_sys_nsig) |
263 | #elif defined _sys_nsig |
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
264 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
235 | #else |
265 | #else |
236 | # error "unable to find value for NSIG, please report" |
266 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
237 | /* to make it compile regardless, just remove the above line, */ |
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238 | /* but consider reporting it, too! :) */ |
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239 | # define EV_NSIG 65 |
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|
240 | #endif |
267 | #endif |
241 | |
268 | |
242 | #ifndef EV_USE_FLOOR |
269 | #ifndef EV_USE_FLOOR |
243 | # define EV_USE_FLOOR 0 |
270 | # define EV_USE_FLOOR 0 |
244 | #endif |
271 | #endif |
245 | |
272 | |
246 | #ifndef EV_USE_CLOCK_SYSCALL |
273 | #ifndef EV_USE_CLOCK_SYSCALL |
247 | # if __linux && __GLIBC__ >= 2 |
274 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
275 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
249 | # else |
276 | # else |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
277 | # define EV_USE_CLOCK_SYSCALL 0 |
251 | # endif |
278 | # endif |
252 | #endif |
279 | #endif |
253 | |
280 | |
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281 | #if !(_POSIX_TIMERS > 0) |
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282 | # ifndef EV_USE_MONOTONIC |
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283 | # define EV_USE_MONOTONIC 0 |
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284 | # endif |
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285 | # ifndef EV_USE_REALTIME |
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286 | # define EV_USE_REALTIME 0 |
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287 | # endif |
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288 | #endif |
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289 | |
254 | #ifndef EV_USE_MONOTONIC |
290 | #ifndef EV_USE_MONOTONIC |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
291 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
292 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
257 | # else |
293 | # else |
258 | # define EV_USE_MONOTONIC 0 |
294 | # define EV_USE_MONOTONIC 0 |
259 | # endif |
295 | # endif |
260 | #endif |
296 | #endif |
… | |
… | |
297 | |
333 | |
298 | #ifndef EV_USE_PORT |
334 | #ifndef EV_USE_PORT |
299 | # define EV_USE_PORT 0 |
335 | # define EV_USE_PORT 0 |
300 | #endif |
336 | #endif |
301 | |
337 | |
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338 | #ifndef EV_USE_LINUXAIO |
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339 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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340 | # define EV_USE_LINUXAIO 1 |
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341 | # else |
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342 | # define EV_USE_LINUXAIO 0 |
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343 | # endif |
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344 | #endif |
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345 | |
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346 | #ifndef EV_USE_IOURING |
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347 | # if __linux /* later checks might disable again */ |
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348 | # define EV_USE_IOURING 1 |
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349 | # else |
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350 | # define EV_USE_IOURING 0 |
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351 | # endif |
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352 | #endif |
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353 | |
302 | #ifndef EV_USE_INOTIFY |
354 | #ifndef EV_USE_INOTIFY |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
355 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
356 | # define EV_USE_INOTIFY EV_FEATURE_OS |
305 | # else |
357 | # else |
306 | # define EV_USE_INOTIFY 0 |
358 | # define EV_USE_INOTIFY 0 |
… | |
… | |
347 | |
399 | |
348 | #ifndef EV_HEAP_CACHE_AT |
400 | #ifndef EV_HEAP_CACHE_AT |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
401 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
350 | #endif |
402 | #endif |
351 | |
403 | |
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404 | #ifdef __ANDROID__ |
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405 | /* supposedly, android doesn't typedef fd_mask */ |
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406 | # undef EV_USE_SELECT |
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407 | # define EV_USE_SELECT 0 |
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408 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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409 | # undef EV_USE_CLOCK_SYSCALL |
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410 | # define EV_USE_CLOCK_SYSCALL 0 |
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411 | #endif |
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412 | |
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413 | /* aix's poll.h seems to cause lots of trouble */ |
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414 | #ifdef _AIX |
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415 | /* AIX has a completely broken poll.h header */ |
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416 | # undef EV_USE_POLL |
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417 | # define EV_USE_POLL 0 |
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418 | #endif |
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419 | |
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
420 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
353 | /* which makes programs even slower. might work on other unices, too. */ |
421 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
422 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
423 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
424 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
425 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
426 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
427 | # define EV_USE_MONOTONIC 1 |
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|
428 | # define EV_NEED_SYSCALL 1 |
360 | # else |
429 | # else |
361 | # undef EV_USE_CLOCK_SYSCALL |
430 | # undef EV_USE_CLOCK_SYSCALL |
362 | # define EV_USE_CLOCK_SYSCALL 0 |
431 | # define EV_USE_CLOCK_SYSCALL 0 |
363 | # endif |
432 | # endif |
364 | #endif |
433 | #endif |
365 | |
434 | |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
435 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
367 | |
436 | |
368 | #ifdef _AIX |
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369 | /* AIX has a completely broken poll.h header */ |
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370 | # undef EV_USE_POLL |
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371 | # define EV_USE_POLL 0 |
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372 | #endif |
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373 | |
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374 | #ifndef CLOCK_MONOTONIC |
437 | #ifndef CLOCK_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
438 | # undef EV_USE_MONOTONIC |
376 | # define EV_USE_MONOTONIC 0 |
439 | # define EV_USE_MONOTONIC 0 |
377 | #endif |
440 | #endif |
378 | |
441 | |
… | |
… | |
384 | #if !EV_STAT_ENABLE |
447 | #if !EV_STAT_ENABLE |
385 | # undef EV_USE_INOTIFY |
448 | # undef EV_USE_INOTIFY |
386 | # define EV_USE_INOTIFY 0 |
449 | # define EV_USE_INOTIFY 0 |
387 | #endif |
450 | #endif |
388 | |
451 | |
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452 | #if __linux && EV_USE_IOURING |
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453 | # include <linux/fs.h> |
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454 | # ifndef RWF_SYNC |
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455 | # undef EV_USE_IOURING |
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456 | # define EV_USE_IOURING 0 |
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457 | # endif |
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458 | #endif |
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459 | |
389 | #if !EV_USE_NANOSLEEP |
460 | #if !EV_USE_NANOSLEEP |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
461 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
462 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
463 | # include <sys/select.h> |
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464 | # endif |
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465 | #endif |
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466 | |
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467 | #if EV_USE_LINUXAIO |
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468 | # include <sys/syscall.h> |
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469 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
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470 | # define EV_NEED_SYSCALL 1 |
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471 | # else |
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472 | # undef EV_USE_LINUXAIO |
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473 | # define EV_USE_LINUXAIO 0 |
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474 | # endif |
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|
475 | #endif |
|
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476 | |
|
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477 | #if EV_USE_IOURING |
|
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478 | # include <sys/syscall.h> |
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479 | # if !SYS_io_uring_setup && __linux && !__alpha |
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|
480 | # define SYS_io_uring_setup 425 |
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481 | # define SYS_io_uring_enter 426 |
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482 | # define SYS_io_uring_wregister 427 |
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483 | # endif |
|
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484 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
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485 | # define EV_NEED_SYSCALL 1 |
|
|
486 | # else |
|
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487 | # undef EV_USE_IOURING |
|
|
488 | # define EV_USE_IOURING 0 |
393 | # endif |
489 | # endif |
394 | #endif |
490 | #endif |
395 | |
491 | |
396 | #if EV_USE_INOTIFY |
492 | #if EV_USE_INOTIFY |
397 | # include <sys/statfs.h> |
493 | # include <sys/statfs.h> |
… | |
… | |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
495 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
400 | # ifndef IN_DONT_FOLLOW |
496 | # ifndef IN_DONT_FOLLOW |
401 | # undef EV_USE_INOTIFY |
497 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
498 | # define EV_USE_INOTIFY 0 |
403 | # endif |
499 | # endif |
404 | #endif |
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405 | |
|
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406 | #if EV_SELECT_IS_WINSOCKET |
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407 | # include <winsock.h> |
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|
408 | #endif |
500 | #endif |
409 | |
501 | |
410 | #if EV_USE_EVENTFD |
502 | #if EV_USE_EVENTFD |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
503 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
412 | # include <stdint.h> |
504 | # include <stdint.h> |
… | |
… | |
443 | uint32_t ssi_signo; |
535 | uint32_t ssi_signo; |
444 | char pad[128 - sizeof (uint32_t)]; |
536 | char pad[128 - sizeof (uint32_t)]; |
445 | }; |
537 | }; |
446 | #endif |
538 | #endif |
447 | |
539 | |
448 | /**/ |
540 | /*****************************************************************************/ |
449 | |
541 | |
450 | #if EV_VERIFY >= 3 |
542 | #if EV_VERIFY >= 3 |
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
543 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
452 | #else |
544 | #else |
453 | # define EV_FREQUENT_CHECK do { } while (0) |
545 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
458 | * This value is good at least till the year 4000. |
550 | * This value is good at least till the year 4000. |
459 | */ |
551 | */ |
460 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
552 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
461 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
553 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
462 | |
554 | |
463 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
555 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
556 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | |
557 | |
|
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558 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
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559 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
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560 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
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561 | #define EV_TSTAMP_HUGE \ |
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562 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
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563 | : 0 < (time_t)4294967295 ? 4294967295. \ |
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564 | : 2147483647.) \ |
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565 | |
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566 | #ifndef EV_TS_CONST |
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567 | # define EV_TS_CONST(nv) nv |
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568 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
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|
569 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
570 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
571 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
572 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
573 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
574 | #endif |
468 | |
575 | |
|
|
576 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
577 | /* ECB.H BEGIN */ |
|
|
578 | /* |
|
|
579 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
580 | * |
|
|
581 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
582 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
583 | * All rights reserved. |
|
|
584 | * |
|
|
585 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
586 | * tion, are permitted provided that the following conditions are met: |
|
|
587 | * |
|
|
588 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
589 | * this list of conditions and the following disclaimer. |
|
|
590 | * |
|
|
591 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
592 | * notice, this list of conditions and the following disclaimer in the |
|
|
593 | * documentation and/or other materials provided with the distribution. |
|
|
594 | * |
|
|
595 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
596 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
597 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
598 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
599 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
600 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
601 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
602 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
603 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
604 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
605 | * |
|
|
606 | * Alternatively, the contents of this file may be used under the terms of |
|
|
607 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
608 | * in which case the provisions of the GPL are applicable instead of |
|
|
609 | * the above. If you wish to allow the use of your version of this file |
|
|
610 | * only under the terms of the GPL and not to allow others to use your |
|
|
611 | * version of this file under the BSD license, indicate your decision |
|
|
612 | * by deleting the provisions above and replace them with the notice |
|
|
613 | * and other provisions required by the GPL. If you do not delete the |
|
|
614 | * provisions above, a recipient may use your version of this file under |
|
|
615 | * either the BSD or the GPL. |
|
|
616 | */ |
|
|
617 | |
|
|
618 | #ifndef ECB_H |
|
|
619 | #define ECB_H |
|
|
620 | |
|
|
621 | /* 16 bits major, 16 bits minor */ |
|
|
622 | #define ECB_VERSION 0x00010006 |
|
|
623 | |
|
|
624 | #ifdef _WIN32 |
|
|
625 | typedef signed char int8_t; |
|
|
626 | typedef unsigned char uint8_t; |
|
|
627 | typedef signed short int16_t; |
|
|
628 | typedef unsigned short uint16_t; |
|
|
629 | typedef signed int int32_t; |
|
|
630 | typedef unsigned int uint32_t; |
469 | #if __GNUC__ >= 4 |
631 | #if __GNUC__ |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
632 | typedef signed long long int64_t; |
471 | # define noinline __attribute__ ((noinline)) |
633 | typedef unsigned long long uint64_t; |
|
|
634 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
635 | typedef signed __int64 int64_t; |
|
|
636 | typedef unsigned __int64 uint64_t; |
|
|
637 | #endif |
|
|
638 | #ifdef _WIN64 |
|
|
639 | #define ECB_PTRSIZE 8 |
|
|
640 | typedef uint64_t uintptr_t; |
|
|
641 | typedef int64_t intptr_t; |
|
|
642 | #else |
|
|
643 | #define ECB_PTRSIZE 4 |
|
|
644 | typedef uint32_t uintptr_t; |
|
|
645 | typedef int32_t intptr_t; |
|
|
646 | #endif |
472 | #else |
647 | #else |
473 | # define expect(expr,value) (expr) |
648 | #include <inttypes.h> |
474 | # define noinline |
649 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
475 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
650 | #define ECB_PTRSIZE 8 |
476 | # define inline |
651 | #else |
|
|
652 | #define ECB_PTRSIZE 4 |
|
|
653 | #endif |
477 | # endif |
654 | #endif |
|
|
655 | |
|
|
656 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
657 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
658 | |
|
|
659 | /* work around x32 idiocy by defining proper macros */ |
|
|
660 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
661 | #if _ILP32 |
|
|
662 | #define ECB_AMD64_X32 1 |
|
|
663 | #else |
|
|
664 | #define ECB_AMD64 1 |
478 | #endif |
665 | #endif |
|
|
666 | #endif |
479 | |
667 | |
|
|
668 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
669 | * what their idiot authors think are the "more important" extensions, |
|
|
670 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
671 | * or so. |
|
|
672 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
673 | * an issue with that they should have done it right in the first place. |
|
|
674 | */ |
|
|
675 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
676 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
677 | #else |
|
|
678 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
679 | #endif |
|
|
680 | |
|
|
681 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
682 | |
|
|
683 | #if __clang__ && defined __has_builtin |
|
|
684 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
685 | #else |
|
|
686 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
687 | #endif |
|
|
688 | |
|
|
689 | #if __clang__ && defined __has_extension |
|
|
690 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
691 | #else |
|
|
692 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
693 | #endif |
|
|
694 | |
|
|
695 | #define ECB_CPP (__cplusplus+0) |
|
|
696 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
697 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
698 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
699 | |
|
|
700 | #if ECB_CPP |
|
|
701 | #define ECB_C 0 |
|
|
702 | #define ECB_STDC_VERSION 0 |
|
|
703 | #else |
|
|
704 | #define ECB_C 1 |
|
|
705 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
706 | #endif |
|
|
707 | |
|
|
708 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
709 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
710 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
711 | |
|
|
712 | #if ECB_CPP |
|
|
713 | #define ECB_EXTERN_C extern "C" |
|
|
714 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
715 | #define ECB_EXTERN_C_END } |
|
|
716 | #else |
|
|
717 | #define ECB_EXTERN_C extern |
|
|
718 | #define ECB_EXTERN_C_BEG |
|
|
719 | #define ECB_EXTERN_C_END |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | /*****************************************************************************/ |
|
|
723 | |
|
|
724 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
725 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
726 | |
|
|
727 | #if ECB_NO_THREADS |
|
|
728 | #define ECB_NO_SMP 1 |
|
|
729 | #endif |
|
|
730 | |
|
|
731 | #if ECB_NO_SMP |
|
|
732 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
733 | #endif |
|
|
734 | |
|
|
735 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
736 | #if __xlC__ && ECB_CPP |
|
|
737 | #include <builtins.h> |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | #if 1400 <= _MSC_VER |
|
|
741 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
742 | #endif |
|
|
743 | |
|
|
744 | #ifndef ECB_MEMORY_FENCE |
|
|
745 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
746 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
747 | #if __i386 || __i386__ |
|
|
748 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
749 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
750 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
751 | #elif ECB_GCC_AMD64 |
|
|
752 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
753 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
754 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
755 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
756 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
757 | #elif defined __ARM_ARCH_2__ \ |
|
|
758 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
759 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
760 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
761 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
762 | || defined __ARM_ARCH_5TEJ__ |
|
|
763 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
764 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
765 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
766 | || defined __ARM_ARCH_6T2__ |
|
|
767 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
768 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
769 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
770 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
771 | #elif __aarch64__ |
|
|
772 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
773 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
774 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
775 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
776 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
777 | #elif defined __s390__ || defined __s390x__ |
|
|
778 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
779 | #elif defined __mips__ |
|
|
780 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
781 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
782 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
783 | #elif defined __alpha__ |
|
|
784 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
785 | #elif defined __hppa__ |
|
|
786 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
787 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
788 | #elif defined __ia64__ |
|
|
789 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
790 | #elif defined __m68k__ |
|
|
791 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
792 | #elif defined __m88k__ |
|
|
793 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
794 | #elif defined __sh__ |
|
|
795 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
796 | #endif |
|
|
797 | #endif |
|
|
798 | #endif |
|
|
799 | |
|
|
800 | #ifndef ECB_MEMORY_FENCE |
|
|
801 | #if ECB_GCC_VERSION(4,7) |
|
|
802 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
803 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
804 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
805 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
806 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
807 | |
|
|
808 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
809 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
810 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
811 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
812 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
813 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
814 | |
|
|
815 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
816 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
817 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
818 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
819 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
820 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
821 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
822 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
823 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
824 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
825 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
826 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
827 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
828 | #elif defined _WIN32 |
|
|
829 | #include <WinNT.h> |
|
|
830 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
831 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
832 | #include <mbarrier.h> |
|
|
833 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
834 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
835 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
836 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
837 | #elif __xlC__ |
|
|
838 | #define ECB_MEMORY_FENCE __sync () |
|
|
839 | #endif |
|
|
840 | #endif |
|
|
841 | |
|
|
842 | #ifndef ECB_MEMORY_FENCE |
|
|
843 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
844 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
845 | /* not just C11 atomics and atomic accesses */ |
|
|
846 | #include <stdatomic.h> |
|
|
847 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
848 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
849 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
850 | #endif |
|
|
851 | #endif |
|
|
852 | |
|
|
853 | #ifndef ECB_MEMORY_FENCE |
|
|
854 | #if !ECB_AVOID_PTHREADS |
|
|
855 | /* |
|
|
856 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
857 | * or failure to find pthread.h, then you should implement |
|
|
858 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
859 | * OR provide pthread.h and link against the posix thread library |
|
|
860 | * of your system. |
|
|
861 | */ |
|
|
862 | #include <pthread.h> |
|
|
863 | #define ECB_NEEDS_PTHREADS 1 |
|
|
864 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
865 | |
|
|
866 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
867 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
868 | #endif |
|
|
869 | #endif |
|
|
870 | |
|
|
871 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
872 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
873 | #endif |
|
|
874 | |
|
|
875 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
876 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
880 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
881 | #endif |
|
|
882 | |
|
|
883 | /*****************************************************************************/ |
|
|
884 | |
|
|
885 | #if ECB_CPP |
|
|
886 | #define ecb_inline static inline |
|
|
887 | #elif ECB_GCC_VERSION(2,5) |
|
|
888 | #define ecb_inline static __inline__ |
|
|
889 | #elif ECB_C99 |
|
|
890 | #define ecb_inline static inline |
|
|
891 | #else |
|
|
892 | #define ecb_inline static |
|
|
893 | #endif |
|
|
894 | |
|
|
895 | #if ECB_GCC_VERSION(3,3) |
|
|
896 | #define ecb_restrict __restrict__ |
|
|
897 | #elif ECB_C99 |
|
|
898 | #define ecb_restrict restrict |
|
|
899 | #else |
|
|
900 | #define ecb_restrict |
|
|
901 | #endif |
|
|
902 | |
|
|
903 | typedef int ecb_bool; |
|
|
904 | |
|
|
905 | #define ECB_CONCAT_(a, b) a ## b |
|
|
906 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
907 | #define ECB_STRINGIFY_(a) # a |
|
|
908 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
909 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
910 | |
|
|
911 | #define ecb_function_ ecb_inline |
|
|
912 | |
|
|
913 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
914 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
915 | #else |
|
|
916 | #define ecb_attribute(attrlist) |
|
|
917 | #endif |
|
|
918 | |
|
|
919 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
920 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
921 | #else |
|
|
922 | /* possible C11 impl for integral types |
|
|
923 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
924 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
925 | |
|
|
926 | #define ecb_is_constant(expr) 0 |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
930 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
931 | #else |
|
|
932 | #define ecb_expect(expr,value) (expr) |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
936 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
937 | #else |
|
|
938 | #define ecb_prefetch(addr,rw,locality) |
|
|
939 | #endif |
|
|
940 | |
|
|
941 | /* no emulation for ecb_decltype */ |
|
|
942 | #if ECB_CPP11 |
|
|
943 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
944 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
945 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
946 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
947 | #define ecb_decltype(x) __typeof__ (x) |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | #if _MSC_VER >= 1300 |
|
|
951 | #define ecb_deprecated __declspec (deprecated) |
|
|
952 | #else |
|
|
953 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if _MSC_VER >= 1500 |
|
|
957 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
958 | #elif ECB_GCC_VERSION(4,5) |
|
|
959 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
960 | #else |
|
|
961 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | #if _MSC_VER >= 1400 |
|
|
965 | #define ecb_noinline __declspec (noinline) |
|
|
966 | #else |
|
|
967 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
968 | #endif |
|
|
969 | |
|
|
970 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
971 | #define ecb_const ecb_attribute ((__const__)) |
|
|
972 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
973 | |
|
|
974 | #if ECB_C11 || __IBMC_NORETURN |
|
|
975 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
976 | #define ecb_noreturn _Noreturn |
|
|
977 | #elif ECB_CPP11 |
|
|
978 | #define ecb_noreturn [[noreturn]] |
|
|
979 | #elif _MSC_VER >= 1200 |
|
|
980 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
981 | #define ecb_noreturn __declspec (noreturn) |
|
|
982 | #else |
|
|
983 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
984 | #endif |
|
|
985 | |
|
|
986 | #if ECB_GCC_VERSION(4,3) |
|
|
987 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
988 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
989 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
990 | #else |
|
|
991 | #define ecb_artificial |
|
|
992 | #define ecb_hot |
|
|
993 | #define ecb_cold |
|
|
994 | #endif |
|
|
995 | |
|
|
996 | /* put around conditional expressions if you are very sure that the */ |
|
|
997 | /* expression is mostly true or mostly false. note that these return */ |
|
|
998 | /* booleans, not the expression. */ |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
999 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
1000 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
1001 | /* for compatibility to the rest of the world */ |
|
|
1002 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
1003 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
1004 | |
|
|
1005 | /* count trailing zero bits and count # of one bits */ |
|
|
1006 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1007 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1008 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1009 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
1010 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
1011 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
1012 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
1013 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
1014 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
1015 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
1016 | /* no popcountll */ |
|
|
1017 | #else |
|
|
1018 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
1019 | ecb_function_ ecb_const int |
|
|
1020 | ecb_ctz32 (uint32_t x) |
|
|
1021 | { |
|
|
1022 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1023 | unsigned long r; |
|
|
1024 | _BitScanForward (&r, x); |
|
|
1025 | return (int)r; |
|
|
1026 | #else |
|
|
1027 | int r = 0; |
|
|
1028 | |
|
|
1029 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1030 | |
|
|
1031 | #if ECB_branchless_on_i386 |
|
|
1032 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1033 | r += !!(x & 0xcccccccc) << 1; |
|
|
1034 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1035 | r += !!(x & 0xff00ff00) << 3; |
|
|
1036 | r += !!(x & 0xffff0000) << 4; |
|
|
1037 | #else |
|
|
1038 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1039 | if (x & 0xcccccccc) r += 2; |
|
|
1040 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1041 | if (x & 0xff00ff00) r += 8; |
|
|
1042 | if (x & 0xffff0000) r += 16; |
|
|
1043 | #endif |
|
|
1044 | |
|
|
1045 | return r; |
|
|
1046 | #endif |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1050 | ecb_function_ ecb_const int |
|
|
1051 | ecb_ctz64 (uint64_t x) |
|
|
1052 | { |
|
|
1053 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1054 | unsigned long r; |
|
|
1055 | _BitScanForward64 (&r, x); |
|
|
1056 | return (int)r; |
|
|
1057 | #else |
|
|
1058 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1059 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1060 | #endif |
|
|
1061 | } |
|
|
1062 | |
|
|
1063 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1064 | ecb_function_ ecb_const int |
|
|
1065 | ecb_popcount32 (uint32_t x) |
|
|
1066 | { |
|
|
1067 | x -= (x >> 1) & 0x55555555; |
|
|
1068 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1069 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1070 | x *= 0x01010101; |
|
|
1071 | |
|
|
1072 | return x >> 24; |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1076 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1077 | { |
|
|
1078 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1079 | unsigned long r; |
|
|
1080 | _BitScanReverse (&r, x); |
|
|
1081 | return (int)r; |
|
|
1082 | #else |
|
|
1083 | int r = 0; |
|
|
1084 | |
|
|
1085 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1086 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1087 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1088 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1089 | if (x >> 1) { r += 1; } |
|
|
1090 | |
|
|
1091 | return r; |
|
|
1092 | #endif |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1096 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1097 | { |
|
|
1098 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1099 | unsigned long r; |
|
|
1100 | _BitScanReverse64 (&r, x); |
|
|
1101 | return (int)r; |
|
|
1102 | #else |
|
|
1103 | int r = 0; |
|
|
1104 | |
|
|
1105 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1106 | |
|
|
1107 | return r + ecb_ld32 (x); |
|
|
1108 | #endif |
|
|
1109 | } |
|
|
1110 | #endif |
|
|
1111 | |
|
|
1112 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1113 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1114 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1115 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1116 | |
|
|
1117 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1118 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1119 | { |
|
|
1120 | return ( (x * 0x0802U & 0x22110U) |
|
|
1121 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1125 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1126 | { |
|
|
1127 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1128 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1129 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1130 | x = ( x >> 8 ) | ( x << 8); |
|
|
1131 | |
|
|
1132 | return x; |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1136 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1137 | { |
|
|
1138 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1139 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1140 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1141 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1142 | x = ( x >> 16 ) | ( x << 16); |
|
|
1143 | |
|
|
1144 | return x; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1148 | /* so for this version we are lazy */ |
|
|
1149 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1150 | ecb_function_ ecb_const int |
|
|
1151 | ecb_popcount64 (uint64_t x) |
|
|
1152 | { |
|
|
1153 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1157 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1158 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1159 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1160 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1161 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1162 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1163 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1164 | |
|
|
1165 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1166 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1167 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1168 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1169 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1170 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1171 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1172 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1173 | |
|
|
1174 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1175 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1176 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1177 | #else |
|
|
1178 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1179 | #endif |
|
|
1180 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1181 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1182 | #elif _MSC_VER |
|
|
1183 | #include <stdlib.h> |
|
|
1184 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1185 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1186 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1187 | #else |
|
|
1188 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1189 | ecb_function_ ecb_const uint16_t |
|
|
1190 | ecb_bswap16 (uint16_t x) |
|
|
1191 | { |
|
|
1192 | return ecb_rotl16 (x, 8); |
|
|
1193 | } |
|
|
1194 | |
|
|
1195 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1196 | ecb_function_ ecb_const uint32_t |
|
|
1197 | ecb_bswap32 (uint32_t x) |
|
|
1198 | { |
|
|
1199 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1200 | } |
|
|
1201 | |
|
|
1202 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1203 | ecb_function_ ecb_const uint64_t |
|
|
1204 | ecb_bswap64 (uint64_t x) |
|
|
1205 | { |
|
|
1206 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1207 | } |
|
|
1208 | #endif |
|
|
1209 | |
|
|
1210 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1211 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1212 | #else |
|
|
1213 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1214 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1215 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1216 | #endif |
|
|
1217 | |
|
|
1218 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1219 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1220 | |
|
|
1221 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1222 | ecb_inline ecb_const uint32_t |
|
|
1223 | ecb_byteorder_helper (void) |
|
|
1224 | { |
|
|
1225 | /* the union code still generates code under pressure in gcc, */ |
|
|
1226 | /* but less than using pointers, and always seems to */ |
|
|
1227 | /* successfully return a constant. */ |
|
|
1228 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1229 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1230 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1231 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1232 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1233 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1234 | return 0x44332211; |
|
|
1235 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1236 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1237 | #define ECB_BIG_ENDIAN 1 |
|
|
1238 | return 0x11223344; |
|
|
1239 | #else |
|
|
1240 | union |
|
|
1241 | { |
|
|
1242 | uint8_t c[4]; |
|
|
1243 | uint32_t u; |
|
|
1244 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1245 | return u.u; |
|
|
1246 | #endif |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1250 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1251 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1252 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1253 | |
|
|
1254 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1255 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1256 | #else |
|
|
1257 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1258 | #endif |
|
|
1259 | |
|
|
1260 | #if ECB_CPP |
|
|
1261 | template<typename T> |
|
|
1262 | static inline T ecb_div_rd (T val, T div) |
|
|
1263 | { |
|
|
1264 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1265 | } |
|
|
1266 | template<typename T> |
|
|
1267 | static inline T ecb_div_ru (T val, T div) |
|
|
1268 | { |
|
|
1269 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1270 | } |
|
|
1271 | #else |
|
|
1272 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1273 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1274 | #endif |
|
|
1275 | |
|
|
1276 | #if ecb_cplusplus_does_not_suck |
|
|
1277 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1278 | template<typename T, int N> |
|
|
1279 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1280 | { |
|
|
1281 | return N; |
|
|
1282 | } |
|
|
1283 | #else |
|
|
1284 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1285 | #endif |
|
|
1286 | |
|
|
1287 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1288 | ecb_function_ ecb_const uint32_t |
|
|
1289 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1290 | { |
|
|
1291 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1292 | int e = (x >> 10) & 0x001f; |
|
|
1293 | unsigned int m = x & 0x03ff; |
|
|
1294 | |
|
|
1295 | if (ecb_expect_false (e == 31)) |
|
|
1296 | /* infinity or NaN */ |
|
|
1297 | e = 255 - (127 - 15); |
|
|
1298 | else if (ecb_expect_false (!e)) |
|
|
1299 | { |
|
|
1300 | if (ecb_expect_true (!m)) |
|
|
1301 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1302 | e = 0 - (127 - 15); |
|
|
1303 | else |
|
|
1304 | { |
|
|
1305 | /* subnormal, renormalise */ |
|
|
1306 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1307 | |
|
|
1308 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1309 | e -= s - 1; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1314 | e += 127 - 15; |
|
|
1315 | |
|
|
1316 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1317 | } |
|
|
1318 | |
|
|
1319 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1320 | ecb_function_ ecb_const uint16_t |
|
|
1321 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1322 | { |
|
|
1323 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1324 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1325 | unsigned int m = x & 0x007fffff; |
|
|
1326 | |
|
|
1327 | x &= 0x7fffffff; |
|
|
1328 | |
|
|
1329 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1330 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1331 | { |
|
|
1332 | /* mantissa round-to-even */ |
|
|
1333 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1334 | |
|
|
1335 | /* handle overflow */ |
|
|
1336 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1337 | { |
|
|
1338 | m >>= 1; |
|
|
1339 | e += 1; |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1343 | } |
|
|
1344 | |
|
|
1345 | /* handle large numbers and infinity */ |
|
|
1346 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1347 | return s | 0x7c00; |
|
|
1348 | |
|
|
1349 | /* handle zero, subnormals and small numbers */ |
|
|
1350 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1351 | { |
|
|
1352 | /* zero */ |
|
|
1353 | if (ecb_expect_true (!x)) |
|
|
1354 | return s; |
|
|
1355 | |
|
|
1356 | /* handle subnormals */ |
|
|
1357 | |
|
|
1358 | /* too small, will be zero */ |
|
|
1359 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1360 | return s; |
|
|
1361 | |
|
|
1362 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1363 | |
|
|
1364 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1365 | { |
|
|
1366 | unsigned int bits = 14 - e; |
|
|
1367 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1368 | unsigned int even = (m >> bits) & 1; |
|
|
1369 | |
|
|
1370 | /* if this overflows, we will end up with a normalised number */ |
|
|
1371 | m = (m + half + even) >> bits; |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | return s | m; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1378 | m >>= 13; |
|
|
1379 | |
|
|
1380 | return s | 0x7c00 | m | !m; |
|
|
1381 | } |
|
|
1382 | |
|
|
1383 | /*******************************************************************************/ |
|
|
1384 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1385 | |
|
|
1386 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1387 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1388 | #if 0 \ |
|
|
1389 | || __i386 || __i386__ \ |
|
|
1390 | || ECB_GCC_AMD64 \ |
|
|
1391 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1392 | || defined __s390__ || defined __s390x__ \ |
|
|
1393 | || defined __mips__ \ |
|
|
1394 | || defined __alpha__ \ |
|
|
1395 | || defined __hppa__ \ |
|
|
1396 | || defined __ia64__ \ |
|
|
1397 | || defined __m68k__ \ |
|
|
1398 | || defined __m88k__ \ |
|
|
1399 | || defined __sh__ \ |
|
|
1400 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1401 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1402 | || defined __aarch64__ |
|
|
1403 | #define ECB_STDFP 1 |
|
|
1404 | #include <string.h> /* for memcpy */ |
|
|
1405 | #else |
|
|
1406 | #define ECB_STDFP 0 |
|
|
1407 | #endif |
|
|
1408 | |
|
|
1409 | #ifndef ECB_NO_LIBM |
|
|
1410 | |
|
|
1411 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1412 | |
|
|
1413 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1414 | #ifdef INFINITY |
|
|
1415 | #define ECB_INFINITY INFINITY |
|
|
1416 | #else |
|
|
1417 | #define ECB_INFINITY HUGE_VAL |
|
|
1418 | #endif |
|
|
1419 | |
|
|
1420 | #ifdef NAN |
|
|
1421 | #define ECB_NAN NAN |
|
|
1422 | #else |
|
|
1423 | #define ECB_NAN ECB_INFINITY |
|
|
1424 | #endif |
|
|
1425 | |
|
|
1426 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1427 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1428 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1429 | #else |
|
|
1430 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1431 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1432 | #endif |
|
|
1433 | |
|
|
1434 | /* convert a float to ieee single/binary32 */ |
|
|
1435 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1436 | ecb_function_ ecb_const uint32_t |
|
|
1437 | ecb_float_to_binary32 (float x) |
|
|
1438 | { |
|
|
1439 | uint32_t r; |
|
|
1440 | |
|
|
1441 | #if ECB_STDFP |
|
|
1442 | memcpy (&r, &x, 4); |
|
|
1443 | #else |
|
|
1444 | /* slow emulation, works for anything but -0 */ |
|
|
1445 | uint32_t m; |
|
|
1446 | int e; |
|
|
1447 | |
|
|
1448 | if (x == 0e0f ) return 0x00000000U; |
|
|
1449 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1450 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1451 | if (x != x ) return 0x7fbfffffU; |
|
|
1452 | |
|
|
1453 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1454 | |
|
|
1455 | r = m & 0x80000000U; |
|
|
1456 | |
|
|
1457 | if (r) |
|
|
1458 | m = -m; |
|
|
1459 | |
|
|
1460 | if (e <= -126) |
|
|
1461 | { |
|
|
1462 | m &= 0xffffffU; |
|
|
1463 | m >>= (-125 - e); |
|
|
1464 | e = -126; |
|
|
1465 | } |
|
|
1466 | |
|
|
1467 | r |= (e + 126) << 23; |
|
|
1468 | r |= m & 0x7fffffU; |
|
|
1469 | #endif |
|
|
1470 | |
|
|
1471 | return r; |
|
|
1472 | } |
|
|
1473 | |
|
|
1474 | /* converts an ieee single/binary32 to a float */ |
|
|
1475 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1476 | ecb_function_ ecb_const float |
|
|
1477 | ecb_binary32_to_float (uint32_t x) |
|
|
1478 | { |
|
|
1479 | float r; |
|
|
1480 | |
|
|
1481 | #if ECB_STDFP |
|
|
1482 | memcpy (&r, &x, 4); |
|
|
1483 | #else |
|
|
1484 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1485 | int neg = x >> 31; |
|
|
1486 | int e = (x >> 23) & 0xffU; |
|
|
1487 | |
|
|
1488 | x &= 0x7fffffU; |
|
|
1489 | |
|
|
1490 | if (e) |
|
|
1491 | x |= 0x800000U; |
|
|
1492 | else |
|
|
1493 | e = 1; |
|
|
1494 | |
|
|
1495 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1496 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1497 | |
|
|
1498 | r = neg ? -r : r; |
|
|
1499 | #endif |
|
|
1500 | |
|
|
1501 | return r; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | /* convert a double to ieee double/binary64 */ |
|
|
1505 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1506 | ecb_function_ ecb_const uint64_t |
|
|
1507 | ecb_double_to_binary64 (double x) |
|
|
1508 | { |
|
|
1509 | uint64_t r; |
|
|
1510 | |
|
|
1511 | #if ECB_STDFP |
|
|
1512 | memcpy (&r, &x, 8); |
|
|
1513 | #else |
|
|
1514 | /* slow emulation, works for anything but -0 */ |
|
|
1515 | uint64_t m; |
|
|
1516 | int e; |
|
|
1517 | |
|
|
1518 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1519 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1520 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1521 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1522 | |
|
|
1523 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1524 | |
|
|
1525 | r = m & 0x8000000000000000;; |
|
|
1526 | |
|
|
1527 | if (r) |
|
|
1528 | m = -m; |
|
|
1529 | |
|
|
1530 | if (e <= -1022) |
|
|
1531 | { |
|
|
1532 | m &= 0x1fffffffffffffU; |
|
|
1533 | m >>= (-1021 - e); |
|
|
1534 | e = -1022; |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1538 | r |= m & 0xfffffffffffffU; |
|
|
1539 | #endif |
|
|
1540 | |
|
|
1541 | return r; |
|
|
1542 | } |
|
|
1543 | |
|
|
1544 | /* converts an ieee double/binary64 to a double */ |
|
|
1545 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1546 | ecb_function_ ecb_const double |
|
|
1547 | ecb_binary64_to_double (uint64_t x) |
|
|
1548 | { |
|
|
1549 | double r; |
|
|
1550 | |
|
|
1551 | #if ECB_STDFP |
|
|
1552 | memcpy (&r, &x, 8); |
|
|
1553 | #else |
|
|
1554 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1555 | int neg = x >> 63; |
|
|
1556 | int e = (x >> 52) & 0x7ffU; |
|
|
1557 | |
|
|
1558 | x &= 0xfffffffffffffU; |
|
|
1559 | |
|
|
1560 | if (e) |
|
|
1561 | x |= 0x10000000000000U; |
|
|
1562 | else |
|
|
1563 | e = 1; |
|
|
1564 | |
|
|
1565 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1566 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1567 | |
|
|
1568 | r = neg ? -r : r; |
|
|
1569 | #endif |
|
|
1570 | |
|
|
1571 | return r; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | /* convert a float to ieee half/binary16 */ |
|
|
1575 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1576 | ecb_function_ ecb_const uint16_t |
|
|
1577 | ecb_float_to_binary16 (float x) |
|
|
1578 | { |
|
|
1579 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | /* convert an ieee half/binary16 to float */ |
|
|
1583 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1584 | ecb_function_ ecb_const float |
|
|
1585 | ecb_binary16_to_float (uint16_t x) |
|
|
1586 | { |
|
|
1587 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1588 | } |
|
|
1589 | |
|
|
1590 | #endif |
|
|
1591 | |
|
|
1592 | #endif |
|
|
1593 | |
|
|
1594 | /* ECB.H END */ |
|
|
1595 | |
|
|
1596 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1597 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1598 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1599 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1600 | * libev, in which cases the memory fences become nops. |
|
|
1601 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1602 | * which will then provide the memory fences. |
|
|
1603 | */ |
|
|
1604 | # error "memory fences not defined for your architecture, please report" |
|
|
1605 | #endif |
|
|
1606 | |
|
|
1607 | #ifndef ECB_MEMORY_FENCE |
|
|
1608 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1609 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1610 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1611 | #endif |
|
|
1612 | |
482 | #define inline_size static inline |
1613 | #define inline_size ecb_inline |
483 | |
1614 | |
484 | #if EV_FEATURE_CODE |
1615 | #if EV_FEATURE_CODE |
485 | # define inline_speed static inline |
1616 | # define inline_speed ecb_inline |
486 | #else |
1617 | #else |
487 | # define inline_speed static noinline |
1618 | # define inline_speed ecb_noinline static |
488 | #endif |
1619 | #endif |
|
|
1620 | |
|
|
1621 | /*****************************************************************************/ |
|
|
1622 | /* raw syscall wrappers */ |
|
|
1623 | |
|
|
1624 | #if EV_NEED_SYSCALL |
|
|
1625 | |
|
|
1626 | #include <sys/syscall.h> |
|
|
1627 | |
|
|
1628 | /* |
|
|
1629 | * define some syscall wrappers for common architectures |
|
|
1630 | * this is mostly for nice looks during debugging, not performance. |
|
|
1631 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1632 | * enough for linux aio. |
|
|
1633 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1634 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1635 | */ |
|
|
1636 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1637 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1638 | |
|
|
1639 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1640 | ({ \ |
|
|
1641 | long res; \ |
|
|
1642 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1643 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1644 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1645 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1646 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1647 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1648 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1649 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1650 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1651 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1652 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1653 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1654 | __asm__ __volatile__ ( \ |
|
|
1655 | "syscall\n\t" \ |
|
|
1656 | : "=a" (res) \ |
|
|
1657 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1658 | : "cc", "r11", "cx", "memory"); \ |
|
|
1659 | errno = -res; \ |
|
|
1660 | res; \ |
|
|
1661 | }) |
|
|
1662 | |
|
|
1663 | #endif |
|
|
1664 | |
|
|
1665 | #ifdef ev_syscall |
|
|
1666 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1667 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1668 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1669 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1670 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1671 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1672 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1673 | #else |
|
|
1674 | #define ev_syscall0(nr) syscall (nr) |
|
|
1675 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1676 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1677 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1678 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1679 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1680 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1681 | #endif |
|
|
1682 | |
|
|
1683 | #endif |
|
|
1684 | |
|
|
1685 | /*****************************************************************************/ |
489 | |
1686 | |
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1687 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
491 | |
1688 | |
492 | #if EV_MINPRI == EV_MAXPRI |
1689 | #if EV_MINPRI == EV_MAXPRI |
493 | # define ABSPRI(w) (((W)w), 0) |
1690 | # define ABSPRI(w) (((W)w), 0) |
494 | #else |
1691 | #else |
495 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1692 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
496 | #endif |
1693 | #endif |
497 | |
1694 | |
498 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1695 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
499 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
500 | |
1696 | |
501 | typedef ev_watcher *W; |
1697 | typedef ev_watcher *W; |
502 | typedef ev_watcher_list *WL; |
1698 | typedef ev_watcher_list *WL; |
503 | typedef ev_watcher_time *WT; |
1699 | typedef ev_watcher_time *WT; |
504 | |
1700 | |
… | |
… | |
529 | # include "ev_win32.c" |
1725 | # include "ev_win32.c" |
530 | #endif |
1726 | #endif |
531 | |
1727 | |
532 | /*****************************************************************************/ |
1728 | /*****************************************************************************/ |
533 | |
1729 | |
|
|
1730 | #if EV_USE_LINUXAIO |
|
|
1731 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1732 | #endif |
|
|
1733 | |
534 | /* define a suitable floor function (only used by periodics atm) */ |
1734 | /* define a suitable floor function (only used by periodics atm) */ |
535 | |
1735 | |
536 | #if EV_USE_FLOOR |
1736 | #if EV_USE_FLOOR |
537 | # include <math.h> |
1737 | # include <math.h> |
538 | # define ev_floor(v) floor (v) |
1738 | # define ev_floor(v) floor (v) |
539 | #else |
1739 | #else |
540 | |
1740 | |
541 | #include <float.h> |
1741 | #include <float.h> |
542 | |
1742 | |
543 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1743 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1744 | ecb_noinline |
544 | static ev_tstamp noinline |
1745 | static ev_tstamp |
545 | ev_floor (ev_tstamp v) |
1746 | ev_floor (ev_tstamp v) |
546 | { |
1747 | { |
547 | /* the choice of shift factor is not terribly important */ |
1748 | /* the choice of shift factor is not terribly important */ |
548 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1749 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
549 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1750 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
550 | #else |
1751 | #else |
551 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1752 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
552 | #endif |
1753 | #endif |
553 | |
1754 | |
|
|
1755 | /* special treatment for negative arguments */ |
|
|
1756 | if (ecb_expect_false (v < 0.)) |
|
|
1757 | { |
|
|
1758 | ev_tstamp f = -ev_floor (-v); |
|
|
1759 | |
|
|
1760 | return f - (f == v ? 0 : 1); |
|
|
1761 | } |
|
|
1762 | |
554 | /* argument too large for an unsigned long? */ |
1763 | /* argument too large for an unsigned long? then reduce it */ |
555 | if (expect_false (v >= shift)) |
1764 | if (ecb_expect_false (v >= shift)) |
556 | { |
1765 | { |
557 | ev_tstamp f; |
1766 | ev_tstamp f; |
558 | |
1767 | |
559 | if (v == v - 1.) |
1768 | if (v == v - 1.) |
560 | return v; /* very large number */ |
1769 | return v; /* very large numbers are assumed to be integer */ |
561 | |
1770 | |
562 | f = shift * ev_floor (v * (1. / shift)); |
1771 | f = shift * ev_floor (v * (1. / shift)); |
563 | return f + ev_floor (v - f); |
1772 | return f + ev_floor (v - f); |
564 | } |
1773 | } |
565 | |
1774 | |
566 | /* special treatment for negative args? */ |
|
|
567 | if (expect_false (v < 0.)) |
|
|
568 | { |
|
|
569 | ev_tstamp f = -ev_floor (-v); |
|
|
570 | |
|
|
571 | return f - (f == v ? 0 : 1); |
|
|
572 | } |
|
|
573 | |
|
|
574 | /* fits into an unsigned long */ |
1775 | /* fits into an unsigned long */ |
575 | return (unsigned long)v; |
1776 | return (unsigned long)v; |
576 | } |
1777 | } |
577 | |
1778 | |
578 | #endif |
1779 | #endif |
… | |
… | |
581 | |
1782 | |
582 | #ifdef __linux |
1783 | #ifdef __linux |
583 | # include <sys/utsname.h> |
1784 | # include <sys/utsname.h> |
584 | #endif |
1785 | #endif |
585 | |
1786 | |
|
|
1787 | ecb_noinline ecb_cold |
586 | static unsigned int noinline |
1788 | static unsigned int |
587 | ev_linux_version (void) |
1789 | ev_linux_version (void) |
588 | { |
1790 | { |
589 | #ifdef __linux |
1791 | #ifdef __linux |
590 | unsigned int v = 0; |
1792 | unsigned int v = 0; |
591 | struct utsname buf; |
1793 | struct utsname buf; |
… | |
… | |
620 | } |
1822 | } |
621 | |
1823 | |
622 | /*****************************************************************************/ |
1824 | /*****************************************************************************/ |
623 | |
1825 | |
624 | #if EV_AVOID_STDIO |
1826 | #if EV_AVOID_STDIO |
625 | static void noinline |
1827 | ecb_noinline ecb_cold |
|
|
1828 | static void |
626 | ev_printerr (const char *msg) |
1829 | ev_printerr (const char *msg) |
627 | { |
1830 | { |
628 | write (STDERR_FILENO, msg, strlen (msg)); |
1831 | write (STDERR_FILENO, msg, strlen (msg)); |
629 | } |
1832 | } |
630 | #endif |
1833 | #endif |
631 | |
1834 | |
632 | static void (*syserr_cb)(const char *msg); |
1835 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
633 | |
1836 | |
|
|
1837 | ecb_cold |
634 | void |
1838 | void |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1839 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
636 | { |
1840 | { |
637 | syserr_cb = cb; |
1841 | syserr_cb = cb; |
638 | } |
1842 | } |
639 | |
1843 | |
640 | static void noinline |
1844 | ecb_noinline ecb_cold |
|
|
1845 | static void |
641 | ev_syserr (const char *msg) |
1846 | ev_syserr (const char *msg) |
642 | { |
1847 | { |
643 | if (!msg) |
1848 | if (!msg) |
644 | msg = "(libev) system error"; |
1849 | msg = "(libev) system error"; |
645 | |
1850 | |
… | |
… | |
658 | abort (); |
1863 | abort (); |
659 | } |
1864 | } |
660 | } |
1865 | } |
661 | |
1866 | |
662 | static void * |
1867 | static void * |
663 | ev_realloc_emul (void *ptr, long size) |
1868 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
664 | { |
1869 | { |
665 | #if __GLIBC__ |
|
|
666 | return realloc (ptr, size); |
|
|
667 | #else |
|
|
668 | /* some systems, notably openbsd and darwin, fail to properly |
1870 | /* some systems, notably openbsd and darwin, fail to properly |
669 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1871 | * implement realloc (x, 0) (as required by both ansi c-89 and |
670 | * the single unix specification, so work around them here. |
1872 | * the single unix specification, so work around them here. |
|
|
1873 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1874 | * despite documenting it otherwise. |
671 | */ |
1875 | */ |
672 | |
1876 | |
673 | if (size) |
1877 | if (size) |
674 | return realloc (ptr, size); |
1878 | return realloc (ptr, size); |
675 | |
1879 | |
676 | free (ptr); |
1880 | free (ptr); |
677 | return 0; |
1881 | return 0; |
678 | #endif |
|
|
679 | } |
1882 | } |
680 | |
1883 | |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1884 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
682 | |
1885 | |
|
|
1886 | ecb_cold |
683 | void |
1887 | void |
684 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1888 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
685 | { |
1889 | { |
686 | alloc = cb; |
1890 | alloc = cb; |
687 | } |
1891 | } |
688 | |
1892 | |
689 | inline_speed void * |
1893 | inline_speed void * |
… | |
… | |
716 | typedef struct |
1920 | typedef struct |
717 | { |
1921 | { |
718 | WL head; |
1922 | WL head; |
719 | unsigned char events; /* the events watched for */ |
1923 | unsigned char events; /* the events watched for */ |
720 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1924 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
721 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1925 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
722 | unsigned char unused; |
1926 | unsigned char eflags; /* flags field for use by backends */ |
723 | #if EV_USE_EPOLL |
1927 | #if EV_USE_EPOLL |
724 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1928 | unsigned int egen; /* generation counter to counter epoll bugs */ |
725 | #endif |
1929 | #endif |
726 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1930 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
727 | SOCKET handle; |
1931 | SOCKET handle; |
… | |
… | |
777 | #undef VAR |
1981 | #undef VAR |
778 | }; |
1982 | }; |
779 | #include "ev_wrap.h" |
1983 | #include "ev_wrap.h" |
780 | |
1984 | |
781 | static struct ev_loop default_loop_struct; |
1985 | static struct ev_loop default_loop_struct; |
782 | struct ev_loop *ev_default_loop_ptr; |
1986 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
783 | |
1987 | |
784 | #else |
1988 | #else |
785 | |
1989 | |
786 | ev_tstamp ev_rt_now; |
1990 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
787 | #define VAR(name,decl) static decl; |
1991 | #define VAR(name,decl) static decl; |
788 | #include "ev_vars.h" |
1992 | #include "ev_vars.h" |
789 | #undef VAR |
1993 | #undef VAR |
790 | |
1994 | |
791 | static int ev_default_loop_ptr; |
1995 | static int ev_default_loop_ptr; |
792 | |
1996 | |
793 | #endif |
1997 | #endif |
794 | |
1998 | |
795 | #if EV_FEATURE_API |
1999 | #if EV_FEATURE_API |
796 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2000 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
797 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2001 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
798 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2002 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
799 | #else |
2003 | #else |
800 | # define EV_RELEASE_CB (void)0 |
2004 | # define EV_RELEASE_CB (void)0 |
801 | # define EV_ACQUIRE_CB (void)0 |
2005 | # define EV_ACQUIRE_CB (void)0 |
802 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2006 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
806 | |
2010 | |
807 | /*****************************************************************************/ |
2011 | /*****************************************************************************/ |
808 | |
2012 | |
809 | #ifndef EV_HAVE_EV_TIME |
2013 | #ifndef EV_HAVE_EV_TIME |
810 | ev_tstamp |
2014 | ev_tstamp |
811 | ev_time (void) |
2015 | ev_time (void) EV_NOEXCEPT |
812 | { |
2016 | { |
813 | #if EV_USE_REALTIME |
2017 | #if EV_USE_REALTIME |
814 | if (expect_true (have_realtime)) |
2018 | if (ecb_expect_true (have_realtime)) |
815 | { |
2019 | { |
816 | struct timespec ts; |
2020 | struct timespec ts; |
817 | clock_gettime (CLOCK_REALTIME, &ts); |
2021 | clock_gettime (CLOCK_REALTIME, &ts); |
818 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2022 | return EV_TS_GET (ts); |
819 | } |
2023 | } |
820 | #endif |
2024 | #endif |
821 | |
2025 | |
|
|
2026 | { |
822 | struct timeval tv; |
2027 | struct timeval tv; |
823 | gettimeofday (&tv, 0); |
2028 | gettimeofday (&tv, 0); |
824 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2029 | return EV_TV_GET (tv); |
|
|
2030 | } |
825 | } |
2031 | } |
826 | #endif |
2032 | #endif |
827 | |
2033 | |
828 | inline_size ev_tstamp |
2034 | inline_size ev_tstamp |
829 | get_clock (void) |
2035 | get_clock (void) |
830 | { |
2036 | { |
831 | #if EV_USE_MONOTONIC |
2037 | #if EV_USE_MONOTONIC |
832 | if (expect_true (have_monotonic)) |
2038 | if (ecb_expect_true (have_monotonic)) |
833 | { |
2039 | { |
834 | struct timespec ts; |
2040 | struct timespec ts; |
835 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2041 | clock_gettime (CLOCK_MONOTONIC, &ts); |
836 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2042 | return EV_TS_GET (ts); |
837 | } |
2043 | } |
838 | #endif |
2044 | #endif |
839 | |
2045 | |
840 | return ev_time (); |
2046 | return ev_time (); |
841 | } |
2047 | } |
842 | |
2048 | |
843 | #if EV_MULTIPLICITY |
2049 | #if EV_MULTIPLICITY |
844 | ev_tstamp |
2050 | ev_tstamp |
845 | ev_now (EV_P) |
2051 | ev_now (EV_P) EV_NOEXCEPT |
846 | { |
2052 | { |
847 | return ev_rt_now; |
2053 | return ev_rt_now; |
848 | } |
2054 | } |
849 | #endif |
2055 | #endif |
850 | |
2056 | |
851 | void |
2057 | void |
852 | ev_sleep (ev_tstamp delay) |
2058 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
853 | { |
2059 | { |
854 | if (delay > 0.) |
2060 | if (delay > EV_TS_CONST (0.)) |
855 | { |
2061 | { |
856 | #if EV_USE_NANOSLEEP |
2062 | #if EV_USE_NANOSLEEP |
857 | struct timespec ts; |
2063 | struct timespec ts; |
858 | |
2064 | |
859 | EV_TS_SET (ts, delay); |
2065 | EV_TS_SET (ts, delay); |
860 | nanosleep (&ts, 0); |
2066 | nanosleep (&ts, 0); |
861 | #elif defined(_WIN32) |
2067 | #elif defined _WIN32 |
|
|
2068 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2069 | /* compared to select (µs) or nanosleep (ns) */ |
862 | Sleep ((unsigned long)(delay * 1e3)); |
2070 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
863 | #else |
2071 | #else |
864 | struct timeval tv; |
2072 | struct timeval tv; |
865 | |
2073 | |
866 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2074 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
867 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2075 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
885 | |
2093 | |
886 | do |
2094 | do |
887 | ncur <<= 1; |
2095 | ncur <<= 1; |
888 | while (cnt > ncur); |
2096 | while (cnt > ncur); |
889 | |
2097 | |
890 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2098 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
891 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2099 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
892 | { |
2100 | { |
893 | ncur *= elem; |
2101 | ncur *= elem; |
894 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2102 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
895 | ncur = ncur - sizeof (void *) * 4; |
2103 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
897 | } |
2105 | } |
898 | |
2106 | |
899 | return ncur; |
2107 | return ncur; |
900 | } |
2108 | } |
901 | |
2109 | |
902 | static noinline void * |
2110 | ecb_noinline ecb_cold |
|
|
2111 | static void * |
903 | array_realloc (int elem, void *base, int *cur, int cnt) |
2112 | array_realloc (int elem, void *base, int *cur, int cnt) |
904 | { |
2113 | { |
905 | *cur = array_nextsize (elem, *cur, cnt); |
2114 | *cur = array_nextsize (elem, *cur, cnt); |
906 | return ev_realloc (base, elem * *cur); |
2115 | return ev_realloc (base, elem * *cur); |
907 | } |
2116 | } |
908 | |
2117 | |
|
|
2118 | #define array_needsize_noinit(base,offset,count) |
|
|
2119 | |
909 | #define array_init_zero(base,count) \ |
2120 | #define array_needsize_zerofill(base,offset,count) \ |
910 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2121 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
911 | |
2122 | |
912 | #define array_needsize(type,base,cur,cnt,init) \ |
2123 | #define array_needsize(type,base,cur,cnt,init) \ |
913 | if (expect_false ((cnt) > (cur))) \ |
2124 | if (ecb_expect_false ((cnt) > (cur))) \ |
914 | { \ |
2125 | { \ |
915 | int ocur_ = (cur); \ |
2126 | ecb_unused int ocur_ = (cur); \ |
916 | (base) = (type *)array_realloc \ |
2127 | (base) = (type *)array_realloc \ |
917 | (sizeof (type), (base), &(cur), (cnt)); \ |
2128 | (sizeof (type), (base), &(cur), (cnt)); \ |
918 | init ((base) + (ocur_), (cur) - ocur_); \ |
2129 | init ((base), ocur_, ((cur) - ocur_)); \ |
919 | } |
2130 | } |
920 | |
2131 | |
921 | #if 0 |
2132 | #if 0 |
922 | #define array_slim(type,stem) \ |
2133 | #define array_slim(type,stem) \ |
923 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2134 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
932 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2143 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
933 | |
2144 | |
934 | /*****************************************************************************/ |
2145 | /*****************************************************************************/ |
935 | |
2146 | |
936 | /* dummy callback for pending events */ |
2147 | /* dummy callback for pending events */ |
937 | static void noinline |
2148 | ecb_noinline |
|
|
2149 | static void |
938 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2150 | pendingcb (EV_P_ ev_prepare *w, int revents) |
939 | { |
2151 | { |
940 | } |
2152 | } |
941 | |
2153 | |
942 | void noinline |
2154 | ecb_noinline |
|
|
2155 | void |
943 | ev_feed_event (EV_P_ void *w, int revents) |
2156 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
944 | { |
2157 | { |
945 | W w_ = (W)w; |
2158 | W w_ = (W)w; |
946 | int pri = ABSPRI (w_); |
2159 | int pri = ABSPRI (w_); |
947 | |
2160 | |
948 | if (expect_false (w_->pending)) |
2161 | if (ecb_expect_false (w_->pending)) |
949 | pendings [pri][w_->pending - 1].events |= revents; |
2162 | pendings [pri][w_->pending - 1].events |= revents; |
950 | else |
2163 | else |
951 | { |
2164 | { |
952 | w_->pending = ++pendingcnt [pri]; |
2165 | w_->pending = ++pendingcnt [pri]; |
953 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2166 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
954 | pendings [pri][w_->pending - 1].w = w_; |
2167 | pendings [pri][w_->pending - 1].w = w_; |
955 | pendings [pri][w_->pending - 1].events = revents; |
2168 | pendings [pri][w_->pending - 1].events = revents; |
956 | } |
2169 | } |
|
|
2170 | |
|
|
2171 | pendingpri = NUMPRI - 1; |
957 | } |
2172 | } |
958 | |
2173 | |
959 | inline_speed void |
2174 | inline_speed void |
960 | feed_reverse (EV_P_ W w) |
2175 | feed_reverse (EV_P_ W w) |
961 | { |
2176 | { |
962 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2177 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
963 | rfeeds [rfeedcnt++] = w; |
2178 | rfeeds [rfeedcnt++] = w; |
964 | } |
2179 | } |
965 | |
2180 | |
966 | inline_size void |
2181 | inline_size void |
967 | feed_reverse_done (EV_P_ int revents) |
2182 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1002 | inline_speed void |
2217 | inline_speed void |
1003 | fd_event (EV_P_ int fd, int revents) |
2218 | fd_event (EV_P_ int fd, int revents) |
1004 | { |
2219 | { |
1005 | ANFD *anfd = anfds + fd; |
2220 | ANFD *anfd = anfds + fd; |
1006 | |
2221 | |
1007 | if (expect_true (!anfd->reify)) |
2222 | if (ecb_expect_true (!anfd->reify)) |
1008 | fd_event_nocheck (EV_A_ fd, revents); |
2223 | fd_event_nocheck (EV_A_ fd, revents); |
1009 | } |
2224 | } |
1010 | |
2225 | |
1011 | void |
2226 | void |
1012 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2227 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1013 | { |
2228 | { |
1014 | if (fd >= 0 && fd < anfdmax) |
2229 | if (fd >= 0 && fd < anfdmax) |
1015 | fd_event_nocheck (EV_A_ fd, revents); |
2230 | fd_event_nocheck (EV_A_ fd, revents); |
1016 | } |
2231 | } |
1017 | |
2232 | |
… | |
… | |
1054 | ev_io *w; |
2269 | ev_io *w; |
1055 | |
2270 | |
1056 | unsigned char o_events = anfd->events; |
2271 | unsigned char o_events = anfd->events; |
1057 | unsigned char o_reify = anfd->reify; |
2272 | unsigned char o_reify = anfd->reify; |
1058 | |
2273 | |
1059 | anfd->reify = 0; |
2274 | anfd->reify = 0; |
1060 | |
2275 | |
1061 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2276 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1062 | { |
2277 | { |
1063 | anfd->events = 0; |
2278 | anfd->events = 0; |
1064 | |
2279 | |
1065 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2280 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1066 | anfd->events |= (unsigned char)w->events; |
2281 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1075 | |
2290 | |
1076 | fdchangecnt = 0; |
2291 | fdchangecnt = 0; |
1077 | } |
2292 | } |
1078 | |
2293 | |
1079 | /* something about the given fd changed */ |
2294 | /* something about the given fd changed */ |
1080 | inline_size void |
2295 | inline_size |
|
|
2296 | void |
1081 | fd_change (EV_P_ int fd, int flags) |
2297 | fd_change (EV_P_ int fd, int flags) |
1082 | { |
2298 | { |
1083 | unsigned char reify = anfds [fd].reify; |
2299 | unsigned char reify = anfds [fd].reify; |
1084 | anfds [fd].reify |= flags; |
2300 | anfds [fd].reify |= flags; |
1085 | |
2301 | |
1086 | if (expect_true (!reify)) |
2302 | if (ecb_expect_true (!reify)) |
1087 | { |
2303 | { |
1088 | ++fdchangecnt; |
2304 | ++fdchangecnt; |
1089 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2305 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1090 | fdchanges [fdchangecnt - 1] = fd; |
2306 | fdchanges [fdchangecnt - 1] = fd; |
1091 | } |
2307 | } |
1092 | } |
2308 | } |
1093 | |
2309 | |
1094 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2310 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1095 | inline_speed void |
2311 | inline_speed ecb_cold void |
1096 | fd_kill (EV_P_ int fd) |
2312 | fd_kill (EV_P_ int fd) |
1097 | { |
2313 | { |
1098 | ev_io *w; |
2314 | ev_io *w; |
1099 | |
2315 | |
1100 | while ((w = (ev_io *)anfds [fd].head)) |
2316 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1103 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2319 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1104 | } |
2320 | } |
1105 | } |
2321 | } |
1106 | |
2322 | |
1107 | /* check whether the given fd is actually valid, for error recovery */ |
2323 | /* check whether the given fd is actually valid, for error recovery */ |
1108 | inline_size int |
2324 | inline_size ecb_cold int |
1109 | fd_valid (int fd) |
2325 | fd_valid (int fd) |
1110 | { |
2326 | { |
1111 | #ifdef _WIN32 |
2327 | #ifdef _WIN32 |
1112 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2328 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1113 | #else |
2329 | #else |
1114 | return fcntl (fd, F_GETFD) != -1; |
2330 | return fcntl (fd, F_GETFD) != -1; |
1115 | #endif |
2331 | #endif |
1116 | } |
2332 | } |
1117 | |
2333 | |
1118 | /* called on EBADF to verify fds */ |
2334 | /* called on EBADF to verify fds */ |
1119 | static void noinline |
2335 | ecb_noinline ecb_cold |
|
|
2336 | static void |
1120 | fd_ebadf (EV_P) |
2337 | fd_ebadf (EV_P) |
1121 | { |
2338 | { |
1122 | int fd; |
2339 | int fd; |
1123 | |
2340 | |
1124 | for (fd = 0; fd < anfdmax; ++fd) |
2341 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1126 | if (!fd_valid (fd) && errno == EBADF) |
2343 | if (!fd_valid (fd) && errno == EBADF) |
1127 | fd_kill (EV_A_ fd); |
2344 | fd_kill (EV_A_ fd); |
1128 | } |
2345 | } |
1129 | |
2346 | |
1130 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2347 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1131 | static void noinline |
2348 | ecb_noinline ecb_cold |
|
|
2349 | static void |
1132 | fd_enomem (EV_P) |
2350 | fd_enomem (EV_P) |
1133 | { |
2351 | { |
1134 | int fd; |
2352 | int fd; |
1135 | |
2353 | |
1136 | for (fd = anfdmax; fd--; ) |
2354 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1140 | break; |
2358 | break; |
1141 | } |
2359 | } |
1142 | } |
2360 | } |
1143 | |
2361 | |
1144 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2362 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1145 | static void noinline |
2363 | ecb_noinline |
|
|
2364 | static void |
1146 | fd_rearm_all (EV_P) |
2365 | fd_rearm_all (EV_P) |
1147 | { |
2366 | { |
1148 | int fd; |
2367 | int fd; |
1149 | |
2368 | |
1150 | for (fd = 0; fd < anfdmax; ++fd) |
2369 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1203 | ev_tstamp minat; |
2422 | ev_tstamp minat; |
1204 | ANHE *minpos; |
2423 | ANHE *minpos; |
1205 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2424 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1206 | |
2425 | |
1207 | /* find minimum child */ |
2426 | /* find minimum child */ |
1208 | if (expect_true (pos + DHEAP - 1 < E)) |
2427 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1209 | { |
2428 | { |
1210 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2429 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1211 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2430 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1212 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2431 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1213 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2432 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1214 | } |
2433 | } |
1215 | else if (pos < E) |
2434 | else if (pos < E) |
1216 | { |
2435 | { |
1217 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2436 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1218 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2437 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1219 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2438 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1220 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2439 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1221 | } |
2440 | } |
1222 | else |
2441 | else |
1223 | break; |
2442 | break; |
1224 | |
2443 | |
1225 | if (ANHE_at (he) <= minat) |
2444 | if (ANHE_at (he) <= minat) |
… | |
… | |
1233 | |
2452 | |
1234 | heap [k] = he; |
2453 | heap [k] = he; |
1235 | ev_active (ANHE_w (he)) = k; |
2454 | ev_active (ANHE_w (he)) = k; |
1236 | } |
2455 | } |
1237 | |
2456 | |
1238 | #else /* 4HEAP */ |
2457 | #else /* not 4HEAP */ |
1239 | |
2458 | |
1240 | #define HEAP0 1 |
2459 | #define HEAP0 1 |
1241 | #define HPARENT(k) ((k) >> 1) |
2460 | #define HPARENT(k) ((k) >> 1) |
1242 | #define UPHEAP_DONE(p,k) (!(p)) |
2461 | #define UPHEAP_DONE(p,k) (!(p)) |
1243 | |
2462 | |
… | |
… | |
1331 | |
2550 | |
1332 | /*****************************************************************************/ |
2551 | /*****************************************************************************/ |
1333 | |
2552 | |
1334 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2553 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1335 | |
2554 | |
1336 | static void noinline |
2555 | ecb_noinline ecb_cold |
|
|
2556 | static void |
1337 | evpipe_init (EV_P) |
2557 | evpipe_init (EV_P) |
1338 | { |
2558 | { |
1339 | if (!ev_is_active (&pipe_w)) |
2559 | if (!ev_is_active (&pipe_w)) |
1340 | { |
2560 | { |
|
|
2561 | int fds [2]; |
|
|
2562 | |
1341 | # if EV_USE_EVENTFD |
2563 | # if EV_USE_EVENTFD |
|
|
2564 | fds [0] = -1; |
1342 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2565 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1343 | if (evfd < 0 && errno == EINVAL) |
2566 | if (fds [1] < 0 && errno == EINVAL) |
1344 | evfd = eventfd (0, 0); |
2567 | fds [1] = eventfd (0, 0); |
1345 | |
2568 | |
1346 | if (evfd >= 0) |
2569 | if (fds [1] < 0) |
|
|
2570 | # endif |
1347 | { |
2571 | { |
|
|
2572 | while (pipe (fds)) |
|
|
2573 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2574 | |
|
|
2575 | fd_intern (fds [0]); |
|
|
2576 | } |
|
|
2577 | |
1348 | evpipe [0] = -1; |
2578 | evpipe [0] = fds [0]; |
1349 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2579 | |
1350 | ev_io_set (&pipe_w, evfd, EV_READ); |
2580 | if (evpipe [1] < 0) |
|
|
2581 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2582 | else |
|
|
2583 | { |
|
|
2584 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2585 | /* so that evpipe_write can always rely on its value. */ |
|
|
2586 | /* this branch does not do anything sensible on windows, */ |
|
|
2587 | /* so must not be executed on windows */ |
|
|
2588 | |
|
|
2589 | dup2 (fds [1], evpipe [1]); |
|
|
2590 | close (fds [1]); |
|
|
2591 | } |
|
|
2592 | |
|
|
2593 | fd_intern (evpipe [1]); |
|
|
2594 | |
|
|
2595 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2596 | ev_io_start (EV_A_ &pipe_w); |
|
|
2597 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2598 | } |
|
|
2599 | } |
|
|
2600 | |
|
|
2601 | inline_speed void |
|
|
2602 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2603 | { |
|
|
2604 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2605 | |
|
|
2606 | if (ecb_expect_true (*flag)) |
|
|
2607 | return; |
|
|
2608 | |
|
|
2609 | *flag = 1; |
|
|
2610 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2611 | |
|
|
2612 | pipe_write_skipped = 1; |
|
|
2613 | |
|
|
2614 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2615 | |
|
|
2616 | if (pipe_write_wanted) |
|
|
2617 | { |
|
|
2618 | int old_errno; |
|
|
2619 | |
|
|
2620 | pipe_write_skipped = 0; |
|
|
2621 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2622 | |
|
|
2623 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2624 | |
|
|
2625 | #if EV_USE_EVENTFD |
|
|
2626 | if (evpipe [0] < 0) |
|
|
2627 | { |
|
|
2628 | uint64_t counter = 1; |
|
|
2629 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1351 | } |
2630 | } |
1352 | else |
2631 | else |
1353 | # endif |
2632 | #endif |
1354 | { |
2633 | { |
1355 | while (pipe (evpipe)) |
2634 | #ifdef _WIN32 |
1356 | ev_syserr ("(libev) error creating signal/async pipe"); |
2635 | WSABUF buf; |
1357 | |
2636 | DWORD sent; |
1358 | fd_intern (evpipe [0]); |
2637 | buf.buf = (char *)&buf; |
1359 | fd_intern (evpipe [1]); |
2638 | buf.len = 1; |
1360 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2639 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2640 | #else |
|
|
2641 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2642 | #endif |
1361 | } |
2643 | } |
1362 | |
2644 | |
1363 | ev_io_start (EV_A_ &pipe_w); |
|
|
1364 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1365 | } |
|
|
1366 | } |
|
|
1367 | |
|
|
1368 | inline_size void |
|
|
1369 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1370 | { |
|
|
1371 | if (!*flag) |
|
|
1372 | { |
|
|
1373 | *flag = 1; |
|
|
1374 | |
|
|
1375 | pipe_write_skipped = 1; |
|
|
1376 | |
|
|
1377 | if (pipe_write_wanted) |
|
|
1378 | { |
|
|
1379 | int old_errno = errno; /* save errno because write will clobber it */ |
|
|
1380 | char dummy; |
|
|
1381 | |
|
|
1382 | pipe_write_skipped = 0; |
|
|
1383 | |
|
|
1384 | #if EV_USE_EVENTFD |
|
|
1385 | if (evfd >= 0) |
|
|
1386 | { |
|
|
1387 | uint64_t counter = 1; |
|
|
1388 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1389 | } |
|
|
1390 | else |
|
|
1391 | #endif |
|
|
1392 | { |
|
|
1393 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1394 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1395 | /* so when you think this write should be a send instead, please find out */ |
|
|
1396 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1397 | /* tell me. thank you. */ |
|
|
1398 | write (evpipe [1], &dummy, 1); |
|
|
1399 | } |
|
|
1400 | |
|
|
1401 | errno = old_errno; |
2645 | errno = old_errno; |
1402 | } |
|
|
1403 | } |
2646 | } |
1404 | } |
2647 | } |
1405 | |
2648 | |
1406 | /* called whenever the libev signal pipe */ |
2649 | /* called whenever the libev signal pipe */ |
1407 | /* got some events (signal, async) */ |
2650 | /* got some events (signal, async) */ |
… | |
… | |
1411 | int i; |
2654 | int i; |
1412 | |
2655 | |
1413 | if (revents & EV_READ) |
2656 | if (revents & EV_READ) |
1414 | { |
2657 | { |
1415 | #if EV_USE_EVENTFD |
2658 | #if EV_USE_EVENTFD |
1416 | if (evfd >= 0) |
2659 | if (evpipe [0] < 0) |
1417 | { |
2660 | { |
1418 | uint64_t counter; |
2661 | uint64_t counter; |
1419 | read (evfd, &counter, sizeof (uint64_t)); |
2662 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1420 | } |
2663 | } |
1421 | else |
2664 | else |
1422 | #endif |
2665 | #endif |
1423 | { |
2666 | { |
1424 | char dummy; |
2667 | char dummy[4]; |
1425 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2668 | #ifdef _WIN32 |
|
|
2669 | WSABUF buf; |
|
|
2670 | DWORD recvd; |
|
|
2671 | DWORD flags = 0; |
|
|
2672 | buf.buf = dummy; |
|
|
2673 | buf.len = sizeof (dummy); |
|
|
2674 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2675 | #else |
1426 | read (evpipe [0], &dummy, 1); |
2676 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2677 | #endif |
1427 | } |
2678 | } |
1428 | } |
2679 | } |
1429 | |
2680 | |
1430 | pipe_write_skipped = 0; |
2681 | pipe_write_skipped = 0; |
|
|
2682 | |
|
|
2683 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1431 | |
2684 | |
1432 | #if EV_SIGNAL_ENABLE |
2685 | #if EV_SIGNAL_ENABLE |
1433 | if (sig_pending) |
2686 | if (sig_pending) |
1434 | { |
2687 | { |
1435 | sig_pending = 0; |
2688 | sig_pending = 0; |
1436 | |
2689 | |
|
|
2690 | ECB_MEMORY_FENCE; |
|
|
2691 | |
1437 | for (i = EV_NSIG - 1; i--; ) |
2692 | for (i = EV_NSIG - 1; i--; ) |
1438 | if (expect_false (signals [i].pending)) |
2693 | if (ecb_expect_false (signals [i].pending)) |
1439 | ev_feed_signal_event (EV_A_ i + 1); |
2694 | ev_feed_signal_event (EV_A_ i + 1); |
1440 | } |
2695 | } |
1441 | #endif |
2696 | #endif |
1442 | |
2697 | |
1443 | #if EV_ASYNC_ENABLE |
2698 | #if EV_ASYNC_ENABLE |
1444 | if (async_pending) |
2699 | if (async_pending) |
1445 | { |
2700 | { |
1446 | async_pending = 0; |
2701 | async_pending = 0; |
|
|
2702 | |
|
|
2703 | ECB_MEMORY_FENCE; |
1447 | |
2704 | |
1448 | for (i = asynccnt; i--; ) |
2705 | for (i = asynccnt; i--; ) |
1449 | if (asyncs [i]->sent) |
2706 | if (asyncs [i]->sent) |
1450 | { |
2707 | { |
1451 | asyncs [i]->sent = 0; |
2708 | asyncs [i]->sent = 0; |
|
|
2709 | ECB_MEMORY_FENCE_RELEASE; |
1452 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2710 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1453 | } |
2711 | } |
1454 | } |
2712 | } |
1455 | #endif |
2713 | #endif |
1456 | } |
2714 | } |
1457 | |
2715 | |
1458 | /*****************************************************************************/ |
2716 | /*****************************************************************************/ |
1459 | |
2717 | |
1460 | void |
2718 | void |
1461 | ev_feed_signal (int signum) |
2719 | ev_feed_signal (int signum) EV_NOEXCEPT |
1462 | { |
2720 | { |
1463 | #if EV_MULTIPLICITY |
2721 | #if EV_MULTIPLICITY |
|
|
2722 | EV_P; |
|
|
2723 | ECB_MEMORY_FENCE_ACQUIRE; |
1464 | EV_P = signals [signum - 1].loop; |
2724 | EV_A = signals [signum - 1].loop; |
1465 | |
2725 | |
1466 | if (!EV_A) |
2726 | if (!EV_A) |
1467 | return; |
2727 | return; |
1468 | #endif |
2728 | #endif |
1469 | |
2729 | |
1470 | evpipe_init (EV_A); |
|
|
1471 | |
|
|
1472 | signals [signum - 1].pending = 1; |
2730 | signals [signum - 1].pending = 1; |
1473 | evpipe_write (EV_A_ &sig_pending); |
2731 | evpipe_write (EV_A_ &sig_pending); |
1474 | } |
2732 | } |
1475 | |
2733 | |
1476 | static void |
2734 | static void |
… | |
… | |
1481 | #endif |
2739 | #endif |
1482 | |
2740 | |
1483 | ev_feed_signal (signum); |
2741 | ev_feed_signal (signum); |
1484 | } |
2742 | } |
1485 | |
2743 | |
1486 | void noinline |
2744 | ecb_noinline |
|
|
2745 | void |
1487 | ev_feed_signal_event (EV_P_ int signum) |
2746 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1488 | { |
2747 | { |
1489 | WL w; |
2748 | WL w; |
1490 | |
2749 | |
1491 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2750 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1492 | return; |
2751 | return; |
1493 | |
2752 | |
1494 | --signum; |
2753 | --signum; |
1495 | |
2754 | |
1496 | #if EV_MULTIPLICITY |
2755 | #if EV_MULTIPLICITY |
1497 | /* it is permissible to try to feed a signal to the wrong loop */ |
2756 | /* it is permissible to try to feed a signal to the wrong loop */ |
1498 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2757 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1499 | |
2758 | |
1500 | if (expect_false (signals [signum].loop != EV_A)) |
2759 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1501 | return; |
2760 | return; |
1502 | #endif |
2761 | #endif |
1503 | |
2762 | |
1504 | signals [signum].pending = 0; |
2763 | signals [signum].pending = 0; |
|
|
2764 | ECB_MEMORY_FENCE_RELEASE; |
1505 | |
2765 | |
1506 | for (w = signals [signum].head; w; w = w->next) |
2766 | for (w = signals [signum].head; w; w = w->next) |
1507 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2767 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1508 | } |
2768 | } |
1509 | |
2769 | |
… | |
… | |
1600 | # include "ev_kqueue.c" |
2860 | # include "ev_kqueue.c" |
1601 | #endif |
2861 | #endif |
1602 | #if EV_USE_EPOLL |
2862 | #if EV_USE_EPOLL |
1603 | # include "ev_epoll.c" |
2863 | # include "ev_epoll.c" |
1604 | #endif |
2864 | #endif |
|
|
2865 | #if EV_USE_LINUXAIO |
|
|
2866 | # include "ev_linuxaio.c" |
|
|
2867 | #endif |
|
|
2868 | #if EV_USE_IOURING |
|
|
2869 | # include "ev_iouring.c" |
|
|
2870 | #endif |
1605 | #if EV_USE_POLL |
2871 | #if EV_USE_POLL |
1606 | # include "ev_poll.c" |
2872 | # include "ev_poll.c" |
1607 | #endif |
2873 | #endif |
1608 | #if EV_USE_SELECT |
2874 | #if EV_USE_SELECT |
1609 | # include "ev_select.c" |
2875 | # include "ev_select.c" |
1610 | #endif |
2876 | #endif |
1611 | |
2877 | |
1612 | int |
2878 | ecb_cold int |
1613 | ev_version_major (void) |
2879 | ev_version_major (void) EV_NOEXCEPT |
1614 | { |
2880 | { |
1615 | return EV_VERSION_MAJOR; |
2881 | return EV_VERSION_MAJOR; |
1616 | } |
2882 | } |
1617 | |
2883 | |
1618 | int |
2884 | ecb_cold int |
1619 | ev_version_minor (void) |
2885 | ev_version_minor (void) EV_NOEXCEPT |
1620 | { |
2886 | { |
1621 | return EV_VERSION_MINOR; |
2887 | return EV_VERSION_MINOR; |
1622 | } |
2888 | } |
1623 | |
2889 | |
1624 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2890 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1625 | int inline_size |
2891 | inline_size ecb_cold int |
1626 | enable_secure (void) |
2892 | enable_secure (void) |
1627 | { |
2893 | { |
1628 | #ifdef _WIN32 |
2894 | #ifdef _WIN32 |
1629 | return 0; |
2895 | return 0; |
1630 | #else |
2896 | #else |
1631 | return getuid () != geteuid () |
2897 | return getuid () != geteuid () |
1632 | || getgid () != getegid (); |
2898 | || getgid () != getegid (); |
1633 | #endif |
2899 | #endif |
1634 | } |
2900 | } |
1635 | |
2901 | |
|
|
2902 | ecb_cold |
1636 | unsigned int |
2903 | unsigned int |
1637 | ev_supported_backends (void) |
2904 | ev_supported_backends (void) EV_NOEXCEPT |
1638 | { |
2905 | { |
1639 | unsigned int flags = 0; |
2906 | unsigned int flags = 0; |
1640 | |
2907 | |
1641 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2908 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1642 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2909 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1643 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2910 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2911 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2912 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
1644 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2913 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
1645 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2914 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
1646 | |
2915 | |
1647 | return flags; |
2916 | return flags; |
1648 | } |
2917 | } |
1649 | |
2918 | |
|
|
2919 | ecb_cold |
1650 | unsigned int |
2920 | unsigned int |
1651 | ev_recommended_backends (void) |
2921 | ev_recommended_backends (void) EV_NOEXCEPT |
1652 | { |
2922 | { |
1653 | unsigned int flags = ev_supported_backends (); |
2923 | unsigned int flags = ev_supported_backends (); |
1654 | |
2924 | |
1655 | #ifndef __NetBSD__ |
2925 | #ifndef __NetBSD__ |
1656 | /* kqueue is borked on everything but netbsd apparently */ |
2926 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1664 | #endif |
2934 | #endif |
1665 | #ifdef __FreeBSD__ |
2935 | #ifdef __FreeBSD__ |
1666 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2936 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1667 | #endif |
2937 | #endif |
1668 | |
2938 | |
|
|
2939 | /* TODO: linuxaio is very experimental */ |
|
|
2940 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2941 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2942 | #endif |
|
|
2943 | /* TODO: linuxaio is super experimental */ |
|
|
2944 | #if !EV_RECOMMEND_IOURING |
|
|
2945 | flags &= ~EVBACKEND_IOURING; |
|
|
2946 | #endif |
|
|
2947 | |
1669 | return flags; |
2948 | return flags; |
1670 | } |
2949 | } |
1671 | |
2950 | |
|
|
2951 | ecb_cold |
1672 | unsigned int |
2952 | unsigned int |
1673 | ev_embeddable_backends (void) |
2953 | ev_embeddable_backends (void) EV_NOEXCEPT |
1674 | { |
2954 | { |
1675 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2955 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1676 | |
2956 | |
1677 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2957 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1678 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2958 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1679 | flags &= ~EVBACKEND_EPOLL; |
2959 | flags &= ~EVBACKEND_EPOLL; |
1680 | |
2960 | |
|
|
2961 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
2962 | |
|
|
2963 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2964 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2965 | * if the kernel ever is fixed, this might change... |
|
|
2966 | */ |
|
|
2967 | |
1681 | return flags; |
2968 | return flags; |
1682 | } |
2969 | } |
1683 | |
2970 | |
1684 | unsigned int |
2971 | unsigned int |
1685 | ev_backend (EV_P) |
2972 | ev_backend (EV_P) EV_NOEXCEPT |
1686 | { |
2973 | { |
1687 | return backend; |
2974 | return backend; |
1688 | } |
2975 | } |
1689 | |
2976 | |
1690 | #if EV_FEATURE_API |
2977 | #if EV_FEATURE_API |
1691 | unsigned int |
2978 | unsigned int |
1692 | ev_iteration (EV_P) |
2979 | ev_iteration (EV_P) EV_NOEXCEPT |
1693 | { |
2980 | { |
1694 | return loop_count; |
2981 | return loop_count; |
1695 | } |
2982 | } |
1696 | |
2983 | |
1697 | unsigned int |
2984 | unsigned int |
1698 | ev_depth (EV_P) |
2985 | ev_depth (EV_P) EV_NOEXCEPT |
1699 | { |
2986 | { |
1700 | return loop_depth; |
2987 | return loop_depth; |
1701 | } |
2988 | } |
1702 | |
2989 | |
1703 | void |
2990 | void |
1704 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2991 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1705 | { |
2992 | { |
1706 | io_blocktime = interval; |
2993 | io_blocktime = interval; |
1707 | } |
2994 | } |
1708 | |
2995 | |
1709 | void |
2996 | void |
1710 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2997 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1711 | { |
2998 | { |
1712 | timeout_blocktime = interval; |
2999 | timeout_blocktime = interval; |
1713 | } |
3000 | } |
1714 | |
3001 | |
1715 | void |
3002 | void |
1716 | ev_set_userdata (EV_P_ void *data) |
3003 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
1717 | { |
3004 | { |
1718 | userdata = data; |
3005 | userdata = data; |
1719 | } |
3006 | } |
1720 | |
3007 | |
1721 | void * |
3008 | void * |
1722 | ev_userdata (EV_P) |
3009 | ev_userdata (EV_P) EV_NOEXCEPT |
1723 | { |
3010 | { |
1724 | return userdata; |
3011 | return userdata; |
1725 | } |
3012 | } |
1726 | |
3013 | |
|
|
3014 | void |
1727 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
3015 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
1728 | { |
3016 | { |
1729 | invoke_cb = invoke_pending_cb; |
3017 | invoke_cb = invoke_pending_cb; |
1730 | } |
3018 | } |
1731 | |
3019 | |
|
|
3020 | void |
1732 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
3021 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
1733 | { |
3022 | { |
1734 | release_cb = release; |
3023 | release_cb = release; |
1735 | acquire_cb = acquire; |
3024 | acquire_cb = acquire; |
1736 | } |
3025 | } |
1737 | #endif |
3026 | #endif |
1738 | |
3027 | |
1739 | /* initialise a loop structure, must be zero-initialised */ |
3028 | /* initialise a loop structure, must be zero-initialised */ |
1740 | static void noinline |
3029 | ecb_noinline ecb_cold |
|
|
3030 | static void |
1741 | loop_init (EV_P_ unsigned int flags) |
3031 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1742 | { |
3032 | { |
1743 | if (!backend) |
3033 | if (!backend) |
1744 | { |
3034 | { |
1745 | origflags = flags; |
3035 | origflags = flags; |
1746 | |
3036 | |
… | |
… | |
1791 | #if EV_ASYNC_ENABLE |
3081 | #if EV_ASYNC_ENABLE |
1792 | async_pending = 0; |
3082 | async_pending = 0; |
1793 | #endif |
3083 | #endif |
1794 | pipe_write_skipped = 0; |
3084 | pipe_write_skipped = 0; |
1795 | pipe_write_wanted = 0; |
3085 | pipe_write_wanted = 0; |
|
|
3086 | evpipe [0] = -1; |
|
|
3087 | evpipe [1] = -1; |
1796 | #if EV_USE_INOTIFY |
3088 | #if EV_USE_INOTIFY |
1797 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3089 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1798 | #endif |
3090 | #endif |
1799 | #if EV_USE_SIGNALFD |
3091 | #if EV_USE_SIGNALFD |
1800 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3092 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
1802 | |
3094 | |
1803 | if (!(flags & EVBACKEND_MASK)) |
3095 | if (!(flags & EVBACKEND_MASK)) |
1804 | flags |= ev_recommended_backends (); |
3096 | flags |= ev_recommended_backends (); |
1805 | |
3097 | |
1806 | #if EV_USE_IOCP |
3098 | #if EV_USE_IOCP |
1807 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3099 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
1808 | #endif |
3100 | #endif |
1809 | #if EV_USE_PORT |
3101 | #if EV_USE_PORT |
1810 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3102 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1811 | #endif |
3103 | #endif |
1812 | #if EV_USE_KQUEUE |
3104 | #if EV_USE_KQUEUE |
1813 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3105 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3106 | #endif |
|
|
3107 | #if EV_USE_IOURING |
|
|
3108 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3109 | #endif |
|
|
3110 | #if EV_USE_LINUXAIO |
|
|
3111 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1814 | #endif |
3112 | #endif |
1815 | #if EV_USE_EPOLL |
3113 | #if EV_USE_EPOLL |
1816 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3114 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1817 | #endif |
3115 | #endif |
1818 | #if EV_USE_POLL |
3116 | #if EV_USE_POLL |
1819 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3117 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1820 | #endif |
3118 | #endif |
1821 | #if EV_USE_SELECT |
3119 | #if EV_USE_SELECT |
1822 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3120 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1823 | #endif |
3121 | #endif |
1824 | |
3122 | |
1825 | ev_prepare_init (&pending_w, pendingcb); |
3123 | ev_prepare_init (&pending_w, pendingcb); |
1826 | |
3124 | |
1827 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3125 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
1830 | #endif |
3128 | #endif |
1831 | } |
3129 | } |
1832 | } |
3130 | } |
1833 | |
3131 | |
1834 | /* free up a loop structure */ |
3132 | /* free up a loop structure */ |
|
|
3133 | ecb_cold |
1835 | void |
3134 | void |
1836 | ev_loop_destroy (EV_P) |
3135 | ev_loop_destroy (EV_P) |
1837 | { |
3136 | { |
1838 | int i; |
3137 | int i; |
1839 | |
3138 | |
… | |
… | |
1843 | return; |
3142 | return; |
1844 | #endif |
3143 | #endif |
1845 | |
3144 | |
1846 | #if EV_CLEANUP_ENABLE |
3145 | #if EV_CLEANUP_ENABLE |
1847 | /* queue cleanup watchers (and execute them) */ |
3146 | /* queue cleanup watchers (and execute them) */ |
1848 | if (expect_false (cleanupcnt)) |
3147 | if (ecb_expect_false (cleanupcnt)) |
1849 | { |
3148 | { |
1850 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3149 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
1851 | EV_INVOKE_PENDING; |
3150 | EV_INVOKE_PENDING; |
1852 | } |
3151 | } |
1853 | #endif |
3152 | #endif |
1854 | |
3153 | |
1855 | #if EV_CHILD_ENABLE |
3154 | #if EV_CHILD_ENABLE |
1856 | if (ev_is_active (&childev)) |
3155 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1857 | { |
3156 | { |
1858 | ev_ref (EV_A); /* child watcher */ |
3157 | ev_ref (EV_A); /* child watcher */ |
1859 | ev_signal_stop (EV_A_ &childev); |
3158 | ev_signal_stop (EV_A_ &childev); |
1860 | } |
3159 | } |
1861 | #endif |
3160 | #endif |
… | |
… | |
1863 | if (ev_is_active (&pipe_w)) |
3162 | if (ev_is_active (&pipe_w)) |
1864 | { |
3163 | { |
1865 | /*ev_ref (EV_A);*/ |
3164 | /*ev_ref (EV_A);*/ |
1866 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3165 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1867 | |
3166 | |
1868 | #if EV_USE_EVENTFD |
|
|
1869 | if (evfd >= 0) |
|
|
1870 | close (evfd); |
|
|
1871 | #endif |
|
|
1872 | |
|
|
1873 | if (evpipe [0] >= 0) |
|
|
1874 | { |
|
|
1875 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3167 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1876 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3168 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1877 | } |
|
|
1878 | } |
3169 | } |
1879 | |
3170 | |
1880 | #if EV_USE_SIGNALFD |
3171 | #if EV_USE_SIGNALFD |
1881 | if (ev_is_active (&sigfd_w)) |
3172 | if (ev_is_active (&sigfd_w)) |
1882 | close (sigfd); |
3173 | close (sigfd); |
… | |
… | |
1889 | |
3180 | |
1890 | if (backend_fd >= 0) |
3181 | if (backend_fd >= 0) |
1891 | close (backend_fd); |
3182 | close (backend_fd); |
1892 | |
3183 | |
1893 | #if EV_USE_IOCP |
3184 | #if EV_USE_IOCP |
1894 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3185 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
1895 | #endif |
3186 | #endif |
1896 | #if EV_USE_PORT |
3187 | #if EV_USE_PORT |
1897 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3188 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1898 | #endif |
3189 | #endif |
1899 | #if EV_USE_KQUEUE |
3190 | #if EV_USE_KQUEUE |
1900 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3191 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3192 | #endif |
|
|
3193 | #if EV_USE_IOURING |
|
|
3194 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3195 | #endif |
|
|
3196 | #if EV_USE_LINUXAIO |
|
|
3197 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1901 | #endif |
3198 | #endif |
1902 | #if EV_USE_EPOLL |
3199 | #if EV_USE_EPOLL |
1903 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3200 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1904 | #endif |
3201 | #endif |
1905 | #if EV_USE_POLL |
3202 | #if EV_USE_POLL |
1906 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3203 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1907 | #endif |
3204 | #endif |
1908 | #if EV_USE_SELECT |
3205 | #if EV_USE_SELECT |
1909 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3206 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1910 | #endif |
3207 | #endif |
1911 | |
3208 | |
1912 | for (i = NUMPRI; i--; ) |
3209 | for (i = NUMPRI; i--; ) |
1913 | { |
3210 | { |
1914 | array_free (pending, [i]); |
3211 | array_free (pending, [i]); |
… | |
… | |
1956 | |
3253 | |
1957 | inline_size void |
3254 | inline_size void |
1958 | loop_fork (EV_P) |
3255 | loop_fork (EV_P) |
1959 | { |
3256 | { |
1960 | #if EV_USE_PORT |
3257 | #if EV_USE_PORT |
1961 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3258 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1962 | #endif |
3259 | #endif |
1963 | #if EV_USE_KQUEUE |
3260 | #if EV_USE_KQUEUE |
1964 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3261 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3262 | #endif |
|
|
3263 | #if EV_USE_IOURING |
|
|
3264 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3265 | #endif |
|
|
3266 | #if EV_USE_LINUXAIO |
|
|
3267 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1965 | #endif |
3268 | #endif |
1966 | #if EV_USE_EPOLL |
3269 | #if EV_USE_EPOLL |
1967 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3270 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1968 | #endif |
3271 | #endif |
1969 | #if EV_USE_INOTIFY |
3272 | #if EV_USE_INOTIFY |
1970 | infy_fork (EV_A); |
3273 | infy_fork (EV_A); |
1971 | #endif |
3274 | #endif |
1972 | |
3275 | |
|
|
3276 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1973 | if (ev_is_active (&pipe_w)) |
3277 | if (ev_is_active (&pipe_w) && postfork != 2) |
1974 | { |
3278 | { |
1975 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3279 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1976 | |
3280 | |
1977 | ev_ref (EV_A); |
3281 | ev_ref (EV_A); |
1978 | ev_io_stop (EV_A_ &pipe_w); |
3282 | ev_io_stop (EV_A_ &pipe_w); |
1979 | |
3283 | |
1980 | #if EV_USE_EVENTFD |
|
|
1981 | if (evfd >= 0) |
|
|
1982 | close (evfd); |
|
|
1983 | #endif |
|
|
1984 | |
|
|
1985 | if (evpipe [0] >= 0) |
3284 | if (evpipe [0] >= 0) |
1986 | { |
|
|
1987 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3285 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1988 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1989 | } |
|
|
1990 | |
3286 | |
1991 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1992 | evpipe_init (EV_A); |
3287 | evpipe_init (EV_A); |
1993 | /* now iterate over everything, in case we missed something */ |
3288 | /* iterate over everything, in case we missed something before */ |
1994 | pipecb (EV_A_ &pipe_w, EV_READ); |
3289 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1995 | #endif |
|
|
1996 | } |
3290 | } |
|
|
3291 | #endif |
1997 | |
3292 | |
1998 | postfork = 0; |
3293 | postfork = 0; |
1999 | } |
3294 | } |
2000 | |
3295 | |
2001 | #if EV_MULTIPLICITY |
3296 | #if EV_MULTIPLICITY |
2002 | |
3297 | |
|
|
3298 | ecb_cold |
2003 | struct ev_loop * |
3299 | struct ev_loop * |
2004 | ev_loop_new (unsigned int flags) |
3300 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2005 | { |
3301 | { |
2006 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3302 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2007 | |
3303 | |
2008 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3304 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2009 | loop_init (EV_A_ flags); |
3305 | loop_init (EV_A_ flags); |
… | |
… | |
2016 | } |
3312 | } |
2017 | |
3313 | |
2018 | #endif /* multiplicity */ |
3314 | #endif /* multiplicity */ |
2019 | |
3315 | |
2020 | #if EV_VERIFY |
3316 | #if EV_VERIFY |
2021 | static void noinline |
3317 | ecb_noinline ecb_cold |
|
|
3318 | static void |
2022 | verify_watcher (EV_P_ W w) |
3319 | verify_watcher (EV_P_ W w) |
2023 | { |
3320 | { |
2024 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3321 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2025 | |
3322 | |
2026 | if (w->pending) |
3323 | if (w->pending) |
2027 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3324 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2028 | } |
3325 | } |
2029 | |
3326 | |
2030 | static void noinline |
3327 | ecb_noinline ecb_cold |
|
|
3328 | static void |
2031 | verify_heap (EV_P_ ANHE *heap, int N) |
3329 | verify_heap (EV_P_ ANHE *heap, int N) |
2032 | { |
3330 | { |
2033 | int i; |
3331 | int i; |
2034 | |
3332 | |
2035 | for (i = HEAP0; i < N + HEAP0; ++i) |
3333 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2040 | |
3338 | |
2041 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3339 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2042 | } |
3340 | } |
2043 | } |
3341 | } |
2044 | |
3342 | |
2045 | static void noinline |
3343 | ecb_noinline ecb_cold |
|
|
3344 | static void |
2046 | array_verify (EV_P_ W *ws, int cnt) |
3345 | array_verify (EV_P_ W *ws, int cnt) |
2047 | { |
3346 | { |
2048 | while (cnt--) |
3347 | while (cnt--) |
2049 | { |
3348 | { |
2050 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3349 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2052 | } |
3351 | } |
2053 | } |
3352 | } |
2054 | #endif |
3353 | #endif |
2055 | |
3354 | |
2056 | #if EV_FEATURE_API |
3355 | #if EV_FEATURE_API |
2057 | void |
3356 | void ecb_cold |
2058 | ev_verify (EV_P) |
3357 | ev_verify (EV_P) EV_NOEXCEPT |
2059 | { |
3358 | { |
2060 | #if EV_VERIFY |
3359 | #if EV_VERIFY |
2061 | int i; |
3360 | int i; |
2062 | WL w; |
3361 | WL w, w2; |
2063 | |
3362 | |
2064 | assert (activecnt >= -1); |
3363 | assert (activecnt >= -1); |
2065 | |
3364 | |
2066 | assert (fdchangemax >= fdchangecnt); |
3365 | assert (fdchangemax >= fdchangecnt); |
2067 | for (i = 0; i < fdchangecnt; ++i) |
3366 | for (i = 0; i < fdchangecnt; ++i) |
2068 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3367 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2069 | |
3368 | |
2070 | assert (anfdmax >= 0); |
3369 | assert (anfdmax >= 0); |
2071 | for (i = 0; i < anfdmax; ++i) |
3370 | for (i = 0; i < anfdmax; ++i) |
|
|
3371 | { |
|
|
3372 | int j = 0; |
|
|
3373 | |
2072 | for (w = anfds [i].head; w; w = w->next) |
3374 | for (w = w2 = anfds [i].head; w; w = w->next) |
2073 | { |
3375 | { |
2074 | verify_watcher (EV_A_ (W)w); |
3376 | verify_watcher (EV_A_ (W)w); |
|
|
3377 | |
|
|
3378 | if (j++ & 1) |
|
|
3379 | { |
|
|
3380 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3381 | w2 = w2->next; |
|
|
3382 | } |
|
|
3383 | |
2075 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3384 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2076 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3385 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2077 | } |
3386 | } |
|
|
3387 | } |
2078 | |
3388 | |
2079 | assert (timermax >= timercnt); |
3389 | assert (timermax >= timercnt); |
2080 | verify_heap (EV_A_ timers, timercnt); |
3390 | verify_heap (EV_A_ timers, timercnt); |
2081 | |
3391 | |
2082 | #if EV_PERIODIC_ENABLE |
3392 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2128 | #endif |
3438 | #endif |
2129 | } |
3439 | } |
2130 | #endif |
3440 | #endif |
2131 | |
3441 | |
2132 | #if EV_MULTIPLICITY |
3442 | #if EV_MULTIPLICITY |
|
|
3443 | ecb_cold |
2133 | struct ev_loop * |
3444 | struct ev_loop * |
2134 | #else |
3445 | #else |
2135 | int |
3446 | int |
2136 | #endif |
3447 | #endif |
2137 | ev_default_loop (unsigned int flags) |
3448 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2138 | { |
3449 | { |
2139 | if (!ev_default_loop_ptr) |
3450 | if (!ev_default_loop_ptr) |
2140 | { |
3451 | { |
2141 | #if EV_MULTIPLICITY |
3452 | #if EV_MULTIPLICITY |
2142 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3453 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2161 | |
3472 | |
2162 | return ev_default_loop_ptr; |
3473 | return ev_default_loop_ptr; |
2163 | } |
3474 | } |
2164 | |
3475 | |
2165 | void |
3476 | void |
2166 | ev_loop_fork (EV_P) |
3477 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2167 | { |
3478 | { |
2168 | postfork = 1; /* must be in line with ev_default_fork */ |
3479 | postfork = 1; |
2169 | } |
3480 | } |
2170 | |
3481 | |
2171 | /*****************************************************************************/ |
3482 | /*****************************************************************************/ |
2172 | |
3483 | |
2173 | void |
3484 | void |
… | |
… | |
2175 | { |
3486 | { |
2176 | EV_CB_INVOKE ((W)w, revents); |
3487 | EV_CB_INVOKE ((W)w, revents); |
2177 | } |
3488 | } |
2178 | |
3489 | |
2179 | unsigned int |
3490 | unsigned int |
2180 | ev_pending_count (EV_P) |
3491 | ev_pending_count (EV_P) EV_NOEXCEPT |
2181 | { |
3492 | { |
2182 | int pri; |
3493 | int pri; |
2183 | unsigned int count = 0; |
3494 | unsigned int count = 0; |
2184 | |
3495 | |
2185 | for (pri = NUMPRI; pri--; ) |
3496 | for (pri = NUMPRI; pri--; ) |
2186 | count += pendingcnt [pri]; |
3497 | count += pendingcnt [pri]; |
2187 | |
3498 | |
2188 | return count; |
3499 | return count; |
2189 | } |
3500 | } |
2190 | |
3501 | |
2191 | void noinline |
3502 | ecb_noinline |
|
|
3503 | void |
2192 | ev_invoke_pending (EV_P) |
3504 | ev_invoke_pending (EV_P) |
2193 | { |
3505 | { |
2194 | int pri; |
3506 | pendingpri = NUMPRI; |
2195 | |
3507 | |
2196 | for (pri = NUMPRI; pri--; ) |
3508 | do |
|
|
3509 | { |
|
|
3510 | --pendingpri; |
|
|
3511 | |
|
|
3512 | /* pendingpri possibly gets modified in the inner loop */ |
2197 | while (pendingcnt [pri]) |
3513 | while (pendingcnt [pendingpri]) |
2198 | { |
3514 | { |
2199 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3515 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2200 | |
3516 | |
2201 | p->w->pending = 0; |
3517 | p->w->pending = 0; |
2202 | EV_CB_INVOKE (p->w, p->events); |
3518 | EV_CB_INVOKE (p->w, p->events); |
2203 | EV_FREQUENT_CHECK; |
3519 | EV_FREQUENT_CHECK; |
2204 | } |
3520 | } |
|
|
3521 | } |
|
|
3522 | while (pendingpri); |
2205 | } |
3523 | } |
2206 | |
3524 | |
2207 | #if EV_IDLE_ENABLE |
3525 | #if EV_IDLE_ENABLE |
2208 | /* make idle watchers pending. this handles the "call-idle */ |
3526 | /* make idle watchers pending. this handles the "call-idle */ |
2209 | /* only when higher priorities are idle" logic */ |
3527 | /* only when higher priorities are idle" logic */ |
2210 | inline_size void |
3528 | inline_size void |
2211 | idle_reify (EV_P) |
3529 | idle_reify (EV_P) |
2212 | { |
3530 | { |
2213 | if (expect_false (idleall)) |
3531 | if (ecb_expect_false (idleall)) |
2214 | { |
3532 | { |
2215 | int pri; |
3533 | int pri; |
2216 | |
3534 | |
2217 | for (pri = NUMPRI; pri--; ) |
3535 | for (pri = NUMPRI; pri--; ) |
2218 | { |
3536 | { |
… | |
… | |
2248 | { |
3566 | { |
2249 | ev_at (w) += w->repeat; |
3567 | ev_at (w) += w->repeat; |
2250 | if (ev_at (w) < mn_now) |
3568 | if (ev_at (w) < mn_now) |
2251 | ev_at (w) = mn_now; |
3569 | ev_at (w) = mn_now; |
2252 | |
3570 | |
2253 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3571 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
2254 | |
3572 | |
2255 | ANHE_at_cache (timers [HEAP0]); |
3573 | ANHE_at_cache (timers [HEAP0]); |
2256 | downheap (timers, timercnt, HEAP0); |
3574 | downheap (timers, timercnt, HEAP0); |
2257 | } |
3575 | } |
2258 | else |
3576 | else |
… | |
… | |
2267 | } |
3585 | } |
2268 | } |
3586 | } |
2269 | |
3587 | |
2270 | #if EV_PERIODIC_ENABLE |
3588 | #if EV_PERIODIC_ENABLE |
2271 | |
3589 | |
2272 | static void noinline |
3590 | ecb_noinline |
|
|
3591 | static void |
2273 | periodic_recalc (EV_P_ ev_periodic *w) |
3592 | periodic_recalc (EV_P_ ev_periodic *w) |
2274 | { |
3593 | { |
2275 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3594 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2276 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3595 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2277 | |
3596 | |
… | |
… | |
2279 | while (at <= ev_rt_now) |
3598 | while (at <= ev_rt_now) |
2280 | { |
3599 | { |
2281 | ev_tstamp nat = at + w->interval; |
3600 | ev_tstamp nat = at + w->interval; |
2282 | |
3601 | |
2283 | /* when resolution fails us, we use ev_rt_now */ |
3602 | /* when resolution fails us, we use ev_rt_now */ |
2284 | if (expect_false (nat == at)) |
3603 | if (ecb_expect_false (nat == at)) |
2285 | { |
3604 | { |
2286 | at = ev_rt_now; |
3605 | at = ev_rt_now; |
2287 | break; |
3606 | break; |
2288 | } |
3607 | } |
2289 | |
3608 | |
… | |
… | |
2299 | { |
3618 | { |
2300 | EV_FREQUENT_CHECK; |
3619 | EV_FREQUENT_CHECK; |
2301 | |
3620 | |
2302 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3621 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2303 | { |
3622 | { |
2304 | int feed_count = 0; |
|
|
2305 | |
|
|
2306 | do |
3623 | do |
2307 | { |
3624 | { |
2308 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3625 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2309 | |
3626 | |
2310 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3627 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2337 | } |
3654 | } |
2338 | } |
3655 | } |
2339 | |
3656 | |
2340 | /* simply recalculate all periodics */ |
3657 | /* simply recalculate all periodics */ |
2341 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3658 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2342 | static void noinline |
3659 | ecb_noinline ecb_cold |
|
|
3660 | static void |
2343 | periodics_reschedule (EV_P) |
3661 | periodics_reschedule (EV_P) |
2344 | { |
3662 | { |
2345 | int i; |
3663 | int i; |
2346 | |
3664 | |
2347 | /* adjust periodics after time jump */ |
3665 | /* adjust periodics after time jump */ |
… | |
… | |
2360 | reheap (periodics, periodiccnt); |
3678 | reheap (periodics, periodiccnt); |
2361 | } |
3679 | } |
2362 | #endif |
3680 | #endif |
2363 | |
3681 | |
2364 | /* adjust all timers by a given offset */ |
3682 | /* adjust all timers by a given offset */ |
2365 | static void noinline |
3683 | ecb_noinline ecb_cold |
|
|
3684 | static void |
2366 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3685 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2367 | { |
3686 | { |
2368 | int i; |
3687 | int i; |
2369 | |
3688 | |
2370 | for (i = 0; i < timercnt; ++i) |
3689 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2379 | /* also detect if there was a timejump, and act accordingly */ |
3698 | /* also detect if there was a timejump, and act accordingly */ |
2380 | inline_speed void |
3699 | inline_speed void |
2381 | time_update (EV_P_ ev_tstamp max_block) |
3700 | time_update (EV_P_ ev_tstamp max_block) |
2382 | { |
3701 | { |
2383 | #if EV_USE_MONOTONIC |
3702 | #if EV_USE_MONOTONIC |
2384 | if (expect_true (have_monotonic)) |
3703 | if (ecb_expect_true (have_monotonic)) |
2385 | { |
3704 | { |
2386 | int i; |
3705 | int i; |
2387 | ev_tstamp odiff = rtmn_diff; |
3706 | ev_tstamp odiff = rtmn_diff; |
2388 | |
3707 | |
2389 | mn_now = get_clock (); |
3708 | mn_now = get_clock (); |
2390 | |
3709 | |
2391 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3710 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2392 | /* interpolate in the meantime */ |
3711 | /* interpolate in the meantime */ |
2393 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3712 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
2394 | { |
3713 | { |
2395 | ev_rt_now = rtmn_diff + mn_now; |
3714 | ev_rt_now = rtmn_diff + mn_now; |
2396 | return; |
3715 | return; |
2397 | } |
3716 | } |
2398 | |
3717 | |
… | |
… | |
2412 | ev_tstamp diff; |
3731 | ev_tstamp diff; |
2413 | rtmn_diff = ev_rt_now - mn_now; |
3732 | rtmn_diff = ev_rt_now - mn_now; |
2414 | |
3733 | |
2415 | diff = odiff - rtmn_diff; |
3734 | diff = odiff - rtmn_diff; |
2416 | |
3735 | |
2417 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3736 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
2418 | return; /* all is well */ |
3737 | return; /* all is well */ |
2419 | |
3738 | |
2420 | ev_rt_now = ev_time (); |
3739 | ev_rt_now = ev_time (); |
2421 | mn_now = get_clock (); |
3740 | mn_now = get_clock (); |
2422 | now_floor = mn_now; |
3741 | now_floor = mn_now; |
… | |
… | |
2431 | else |
3750 | else |
2432 | #endif |
3751 | #endif |
2433 | { |
3752 | { |
2434 | ev_rt_now = ev_time (); |
3753 | ev_rt_now = ev_time (); |
2435 | |
3754 | |
2436 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3755 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
2437 | { |
3756 | { |
2438 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3757 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2439 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3758 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2440 | #if EV_PERIODIC_ENABLE |
3759 | #if EV_PERIODIC_ENABLE |
2441 | periodics_reschedule (EV_A); |
3760 | periodics_reschedule (EV_A); |
… | |
… | |
2444 | |
3763 | |
2445 | mn_now = ev_rt_now; |
3764 | mn_now = ev_rt_now; |
2446 | } |
3765 | } |
2447 | } |
3766 | } |
2448 | |
3767 | |
2449 | void |
3768 | int |
2450 | ev_run (EV_P_ int flags) |
3769 | ev_run (EV_P_ int flags) |
2451 | { |
3770 | { |
2452 | #if EV_FEATURE_API |
3771 | #if EV_FEATURE_API |
2453 | ++loop_depth; |
3772 | ++loop_depth; |
2454 | #endif |
3773 | #endif |
… | |
… | |
2464 | #if EV_VERIFY >= 2 |
3783 | #if EV_VERIFY >= 2 |
2465 | ev_verify (EV_A); |
3784 | ev_verify (EV_A); |
2466 | #endif |
3785 | #endif |
2467 | |
3786 | |
2468 | #ifndef _WIN32 |
3787 | #ifndef _WIN32 |
2469 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3788 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2470 | if (expect_false (getpid () != curpid)) |
3789 | if (ecb_expect_false (getpid () != curpid)) |
2471 | { |
3790 | { |
2472 | curpid = getpid (); |
3791 | curpid = getpid (); |
2473 | postfork = 1; |
3792 | postfork = 1; |
2474 | } |
3793 | } |
2475 | #endif |
3794 | #endif |
2476 | |
3795 | |
2477 | #if EV_FORK_ENABLE |
3796 | #if EV_FORK_ENABLE |
2478 | /* we might have forked, so queue fork handlers */ |
3797 | /* we might have forked, so queue fork handlers */ |
2479 | if (expect_false (postfork)) |
3798 | if (ecb_expect_false (postfork)) |
2480 | if (forkcnt) |
3799 | if (forkcnt) |
2481 | { |
3800 | { |
2482 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3801 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2483 | EV_INVOKE_PENDING; |
3802 | EV_INVOKE_PENDING; |
2484 | } |
3803 | } |
2485 | #endif |
3804 | #endif |
2486 | |
3805 | |
2487 | #if EV_PREPARE_ENABLE |
3806 | #if EV_PREPARE_ENABLE |
2488 | /* queue prepare watchers (and execute them) */ |
3807 | /* queue prepare watchers (and execute them) */ |
2489 | if (expect_false (preparecnt)) |
3808 | if (ecb_expect_false (preparecnt)) |
2490 | { |
3809 | { |
2491 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3810 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2492 | EV_INVOKE_PENDING; |
3811 | EV_INVOKE_PENDING; |
2493 | } |
3812 | } |
2494 | #endif |
3813 | #endif |
2495 | |
3814 | |
2496 | if (expect_false (loop_done)) |
3815 | if (ecb_expect_false (loop_done)) |
2497 | break; |
3816 | break; |
2498 | |
3817 | |
2499 | /* we might have forked, so reify kernel state if necessary */ |
3818 | /* we might have forked, so reify kernel state if necessary */ |
2500 | if (expect_false (postfork)) |
3819 | if (ecb_expect_false (postfork)) |
2501 | loop_fork (EV_A); |
3820 | loop_fork (EV_A); |
2502 | |
3821 | |
2503 | /* update fd-related kernel structures */ |
3822 | /* update fd-related kernel structures */ |
2504 | fd_reify (EV_A); |
3823 | fd_reify (EV_A); |
2505 | |
3824 | |
… | |
… | |
2510 | |
3829 | |
2511 | /* remember old timestamp for io_blocktime calculation */ |
3830 | /* remember old timestamp for io_blocktime calculation */ |
2512 | ev_tstamp prev_mn_now = mn_now; |
3831 | ev_tstamp prev_mn_now = mn_now; |
2513 | |
3832 | |
2514 | /* update time to cancel out callback processing overhead */ |
3833 | /* update time to cancel out callback processing overhead */ |
2515 | time_update (EV_A_ 1e100); |
3834 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
2516 | |
3835 | |
2517 | /* from now on, we want a pipe-wake-up */ |
3836 | /* from now on, we want a pipe-wake-up */ |
2518 | pipe_write_wanted = 1; |
3837 | pipe_write_wanted = 1; |
2519 | |
3838 | |
|
|
3839 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3840 | |
2520 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3841 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2521 | { |
3842 | { |
2522 | waittime = MAX_BLOCKTIME; |
3843 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
2523 | |
3844 | |
2524 | if (timercnt) |
3845 | if (timercnt) |
2525 | { |
3846 | { |
2526 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3847 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2527 | if (waittime > to) waittime = to; |
3848 | if (waittime > to) waittime = to; |
… | |
… | |
2534 | if (waittime > to) waittime = to; |
3855 | if (waittime > to) waittime = to; |
2535 | } |
3856 | } |
2536 | #endif |
3857 | #endif |
2537 | |
3858 | |
2538 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3859 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2539 | if (expect_false (waittime < timeout_blocktime)) |
3860 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2540 | waittime = timeout_blocktime; |
3861 | waittime = timeout_blocktime; |
2541 | |
3862 | |
2542 | /* at this point, we NEED to wait, so we have to ensure */ |
3863 | /* at this point, we NEED to wait, so we have to ensure */ |
2543 | /* to pass a minimum nonzero value to the backend */ |
3864 | /* to pass a minimum nonzero value to the backend */ |
2544 | if (expect_false (waittime < backend_mintime)) |
3865 | if (ecb_expect_false (waittime < backend_mintime)) |
2545 | waittime = backend_mintime; |
3866 | waittime = backend_mintime; |
2546 | |
3867 | |
2547 | /* extra check because io_blocktime is commonly 0 */ |
3868 | /* extra check because io_blocktime is commonly 0 */ |
2548 | if (expect_false (io_blocktime)) |
3869 | if (ecb_expect_false (io_blocktime)) |
2549 | { |
3870 | { |
2550 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3871 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2551 | |
3872 | |
2552 | if (sleeptime > waittime - backend_mintime) |
3873 | if (sleeptime > waittime - backend_mintime) |
2553 | sleeptime = waittime - backend_mintime; |
3874 | sleeptime = waittime - backend_mintime; |
2554 | |
3875 | |
2555 | if (expect_true (sleeptime > 0.)) |
3876 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
2556 | { |
3877 | { |
2557 | ev_sleep (sleeptime); |
3878 | ev_sleep (sleeptime); |
2558 | waittime -= sleeptime; |
3879 | waittime -= sleeptime; |
2559 | } |
3880 | } |
2560 | } |
3881 | } |
… | |
… | |
2565 | #endif |
3886 | #endif |
2566 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3887 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2567 | backend_poll (EV_A_ waittime); |
3888 | backend_poll (EV_A_ waittime); |
2568 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3889 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2569 | |
3890 | |
2570 | pipe_write_wanted = 0; |
3891 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2571 | |
3892 | |
|
|
3893 | ECB_MEMORY_FENCE_ACQUIRE; |
2572 | if (pipe_write_skipped) |
3894 | if (pipe_write_skipped) |
2573 | { |
3895 | { |
2574 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3896 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
2575 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3897 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2576 | } |
3898 | } |
2577 | |
3899 | |
2578 | |
|
|
2579 | /* update ev_rt_now, do magic */ |
3900 | /* update ev_rt_now, do magic */ |
2580 | time_update (EV_A_ waittime + sleeptime); |
3901 | time_update (EV_A_ waittime + sleeptime); |
2581 | } |
3902 | } |
2582 | |
3903 | |
2583 | /* queue pending timers and reschedule them */ |
3904 | /* queue pending timers and reschedule them */ |
… | |
… | |
2591 | idle_reify (EV_A); |
3912 | idle_reify (EV_A); |
2592 | #endif |
3913 | #endif |
2593 | |
3914 | |
2594 | #if EV_CHECK_ENABLE |
3915 | #if EV_CHECK_ENABLE |
2595 | /* queue check watchers, to be executed first */ |
3916 | /* queue check watchers, to be executed first */ |
2596 | if (expect_false (checkcnt)) |
3917 | if (ecb_expect_false (checkcnt)) |
2597 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3918 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2598 | #endif |
3919 | #endif |
2599 | |
3920 | |
2600 | EV_INVOKE_PENDING; |
3921 | EV_INVOKE_PENDING; |
2601 | } |
3922 | } |
2602 | while (expect_true ( |
3923 | while (ecb_expect_true ( |
2603 | activecnt |
3924 | activecnt |
2604 | && !loop_done |
3925 | && !loop_done |
2605 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3926 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2606 | )); |
3927 | )); |
2607 | |
3928 | |
… | |
… | |
2609 | loop_done = EVBREAK_CANCEL; |
3930 | loop_done = EVBREAK_CANCEL; |
2610 | |
3931 | |
2611 | #if EV_FEATURE_API |
3932 | #if EV_FEATURE_API |
2612 | --loop_depth; |
3933 | --loop_depth; |
2613 | #endif |
3934 | #endif |
2614 | } |
|
|
2615 | |
3935 | |
|
|
3936 | return activecnt; |
|
|
3937 | } |
|
|
3938 | |
2616 | void |
3939 | void |
2617 | ev_break (EV_P_ int how) |
3940 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2618 | { |
3941 | { |
2619 | loop_done = how; |
3942 | loop_done = how; |
2620 | } |
3943 | } |
2621 | |
3944 | |
2622 | void |
3945 | void |
2623 | ev_ref (EV_P) |
3946 | ev_ref (EV_P) EV_NOEXCEPT |
2624 | { |
3947 | { |
2625 | ++activecnt; |
3948 | ++activecnt; |
2626 | } |
3949 | } |
2627 | |
3950 | |
2628 | void |
3951 | void |
2629 | ev_unref (EV_P) |
3952 | ev_unref (EV_P) EV_NOEXCEPT |
2630 | { |
3953 | { |
2631 | --activecnt; |
3954 | --activecnt; |
2632 | } |
3955 | } |
2633 | |
3956 | |
2634 | void |
3957 | void |
2635 | ev_now_update (EV_P) |
3958 | ev_now_update (EV_P) EV_NOEXCEPT |
2636 | { |
3959 | { |
2637 | time_update (EV_A_ 1e100); |
3960 | time_update (EV_A_ EV_TSTAMP_HUGE); |
2638 | } |
3961 | } |
2639 | |
3962 | |
2640 | void |
3963 | void |
2641 | ev_suspend (EV_P) |
3964 | ev_suspend (EV_P) EV_NOEXCEPT |
2642 | { |
3965 | { |
2643 | ev_now_update (EV_A); |
3966 | ev_now_update (EV_A); |
2644 | } |
3967 | } |
2645 | |
3968 | |
2646 | void |
3969 | void |
2647 | ev_resume (EV_P) |
3970 | ev_resume (EV_P) EV_NOEXCEPT |
2648 | { |
3971 | { |
2649 | ev_tstamp mn_prev = mn_now; |
3972 | ev_tstamp mn_prev = mn_now; |
2650 | |
3973 | |
2651 | ev_now_update (EV_A); |
3974 | ev_now_update (EV_A); |
2652 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3975 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2669 | inline_size void |
3992 | inline_size void |
2670 | wlist_del (WL *head, WL elem) |
3993 | wlist_del (WL *head, WL elem) |
2671 | { |
3994 | { |
2672 | while (*head) |
3995 | while (*head) |
2673 | { |
3996 | { |
2674 | if (expect_true (*head == elem)) |
3997 | if (ecb_expect_true (*head == elem)) |
2675 | { |
3998 | { |
2676 | *head = elem->next; |
3999 | *head = elem->next; |
2677 | break; |
4000 | break; |
2678 | } |
4001 | } |
2679 | |
4002 | |
… | |
… | |
2691 | w->pending = 0; |
4014 | w->pending = 0; |
2692 | } |
4015 | } |
2693 | } |
4016 | } |
2694 | |
4017 | |
2695 | int |
4018 | int |
2696 | ev_clear_pending (EV_P_ void *w) |
4019 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2697 | { |
4020 | { |
2698 | W w_ = (W)w; |
4021 | W w_ = (W)w; |
2699 | int pending = w_->pending; |
4022 | int pending = w_->pending; |
2700 | |
4023 | |
2701 | if (expect_true (pending)) |
4024 | if (ecb_expect_true (pending)) |
2702 | { |
4025 | { |
2703 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4026 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2704 | p->w = (W)&pending_w; |
4027 | p->w = (W)&pending_w; |
2705 | w_->pending = 0; |
4028 | w_->pending = 0; |
2706 | return p->events; |
4029 | return p->events; |
… | |
… | |
2733 | w->active = 0; |
4056 | w->active = 0; |
2734 | } |
4057 | } |
2735 | |
4058 | |
2736 | /*****************************************************************************/ |
4059 | /*****************************************************************************/ |
2737 | |
4060 | |
2738 | void noinline |
4061 | ecb_noinline |
|
|
4062 | void |
2739 | ev_io_start (EV_P_ ev_io *w) |
4063 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2740 | { |
4064 | { |
2741 | int fd = w->fd; |
4065 | int fd = w->fd; |
2742 | |
4066 | |
2743 | if (expect_false (ev_is_active (w))) |
4067 | if (ecb_expect_false (ev_is_active (w))) |
2744 | return; |
4068 | return; |
2745 | |
4069 | |
2746 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4070 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2747 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4071 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2748 | |
4072 | |
|
|
4073 | #if EV_VERIFY >= 2 |
|
|
4074 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4075 | #endif |
2749 | EV_FREQUENT_CHECK; |
4076 | EV_FREQUENT_CHECK; |
2750 | |
4077 | |
2751 | ev_start (EV_A_ (W)w, 1); |
4078 | ev_start (EV_A_ (W)w, 1); |
2752 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4079 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2753 | wlist_add (&anfds[fd].head, (WL)w); |
4080 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4081 | |
|
|
4082 | /* common bug, apparently */ |
|
|
4083 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
2754 | |
4084 | |
2755 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4085 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2756 | w->events &= ~EV__IOFDSET; |
4086 | w->events &= ~EV__IOFDSET; |
2757 | |
4087 | |
2758 | EV_FREQUENT_CHECK; |
4088 | EV_FREQUENT_CHECK; |
2759 | } |
4089 | } |
2760 | |
4090 | |
2761 | void noinline |
4091 | ecb_noinline |
|
|
4092 | void |
2762 | ev_io_stop (EV_P_ ev_io *w) |
4093 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2763 | { |
4094 | { |
2764 | clear_pending (EV_A_ (W)w); |
4095 | clear_pending (EV_A_ (W)w); |
2765 | if (expect_false (!ev_is_active (w))) |
4096 | if (ecb_expect_false (!ev_is_active (w))) |
2766 | return; |
4097 | return; |
2767 | |
4098 | |
2768 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4099 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2769 | |
4100 | |
|
|
4101 | #if EV_VERIFY >= 2 |
|
|
4102 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4103 | #endif |
2770 | EV_FREQUENT_CHECK; |
4104 | EV_FREQUENT_CHECK; |
2771 | |
4105 | |
2772 | wlist_del (&anfds[w->fd].head, (WL)w); |
4106 | wlist_del (&anfds[w->fd].head, (WL)w); |
2773 | ev_stop (EV_A_ (W)w); |
4107 | ev_stop (EV_A_ (W)w); |
2774 | |
4108 | |
2775 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4109 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2776 | |
4110 | |
2777 | EV_FREQUENT_CHECK; |
4111 | EV_FREQUENT_CHECK; |
2778 | } |
4112 | } |
2779 | |
4113 | |
2780 | void noinline |
4114 | ecb_noinline |
|
|
4115 | void |
2781 | ev_timer_start (EV_P_ ev_timer *w) |
4116 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2782 | { |
4117 | { |
2783 | if (expect_false (ev_is_active (w))) |
4118 | if (ecb_expect_false (ev_is_active (w))) |
2784 | return; |
4119 | return; |
2785 | |
4120 | |
2786 | ev_at (w) += mn_now; |
4121 | ev_at (w) += mn_now; |
2787 | |
4122 | |
2788 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4123 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2789 | |
4124 | |
2790 | EV_FREQUENT_CHECK; |
4125 | EV_FREQUENT_CHECK; |
2791 | |
4126 | |
2792 | ++timercnt; |
4127 | ++timercnt; |
2793 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4128 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2794 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4129 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2795 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4130 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2796 | ANHE_at_cache (timers [ev_active (w)]); |
4131 | ANHE_at_cache (timers [ev_active (w)]); |
2797 | upheap (timers, ev_active (w)); |
4132 | upheap (timers, ev_active (w)); |
2798 | |
4133 | |
2799 | EV_FREQUENT_CHECK; |
4134 | EV_FREQUENT_CHECK; |
2800 | |
4135 | |
2801 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4136 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2802 | } |
4137 | } |
2803 | |
4138 | |
2804 | void noinline |
4139 | ecb_noinline |
|
|
4140 | void |
2805 | ev_timer_stop (EV_P_ ev_timer *w) |
4141 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2806 | { |
4142 | { |
2807 | clear_pending (EV_A_ (W)w); |
4143 | clear_pending (EV_A_ (W)w); |
2808 | if (expect_false (!ev_is_active (w))) |
4144 | if (ecb_expect_false (!ev_is_active (w))) |
2809 | return; |
4145 | return; |
2810 | |
4146 | |
2811 | EV_FREQUENT_CHECK; |
4147 | EV_FREQUENT_CHECK; |
2812 | |
4148 | |
2813 | { |
4149 | { |
… | |
… | |
2815 | |
4151 | |
2816 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4152 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2817 | |
4153 | |
2818 | --timercnt; |
4154 | --timercnt; |
2819 | |
4155 | |
2820 | if (expect_true (active < timercnt + HEAP0)) |
4156 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2821 | { |
4157 | { |
2822 | timers [active] = timers [timercnt + HEAP0]; |
4158 | timers [active] = timers [timercnt + HEAP0]; |
2823 | adjustheap (timers, timercnt, active); |
4159 | adjustheap (timers, timercnt, active); |
2824 | } |
4160 | } |
2825 | } |
4161 | } |
… | |
… | |
2829 | ev_stop (EV_A_ (W)w); |
4165 | ev_stop (EV_A_ (W)w); |
2830 | |
4166 | |
2831 | EV_FREQUENT_CHECK; |
4167 | EV_FREQUENT_CHECK; |
2832 | } |
4168 | } |
2833 | |
4169 | |
2834 | void noinline |
4170 | ecb_noinline |
|
|
4171 | void |
2835 | ev_timer_again (EV_P_ ev_timer *w) |
4172 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2836 | { |
4173 | { |
2837 | EV_FREQUENT_CHECK; |
4174 | EV_FREQUENT_CHECK; |
|
|
4175 | |
|
|
4176 | clear_pending (EV_A_ (W)w); |
2838 | |
4177 | |
2839 | if (ev_is_active (w)) |
4178 | if (ev_is_active (w)) |
2840 | { |
4179 | { |
2841 | if (w->repeat) |
4180 | if (w->repeat) |
2842 | { |
4181 | { |
… | |
… | |
2855 | |
4194 | |
2856 | EV_FREQUENT_CHECK; |
4195 | EV_FREQUENT_CHECK; |
2857 | } |
4196 | } |
2858 | |
4197 | |
2859 | ev_tstamp |
4198 | ev_tstamp |
2860 | ev_timer_remaining (EV_P_ ev_timer *w) |
4199 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
2861 | { |
4200 | { |
2862 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4201 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
2863 | } |
4202 | } |
2864 | |
4203 | |
2865 | #if EV_PERIODIC_ENABLE |
4204 | #if EV_PERIODIC_ENABLE |
2866 | void noinline |
4205 | ecb_noinline |
|
|
4206 | void |
2867 | ev_periodic_start (EV_P_ ev_periodic *w) |
4207 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2868 | { |
4208 | { |
2869 | if (expect_false (ev_is_active (w))) |
4209 | if (ecb_expect_false (ev_is_active (w))) |
2870 | return; |
4210 | return; |
2871 | |
4211 | |
2872 | if (w->reschedule_cb) |
4212 | if (w->reschedule_cb) |
2873 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4213 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2874 | else if (w->interval) |
4214 | else if (w->interval) |
… | |
… | |
2881 | |
4221 | |
2882 | EV_FREQUENT_CHECK; |
4222 | EV_FREQUENT_CHECK; |
2883 | |
4223 | |
2884 | ++periodiccnt; |
4224 | ++periodiccnt; |
2885 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4225 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2886 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4226 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2887 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4227 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2888 | ANHE_at_cache (periodics [ev_active (w)]); |
4228 | ANHE_at_cache (periodics [ev_active (w)]); |
2889 | upheap (periodics, ev_active (w)); |
4229 | upheap (periodics, ev_active (w)); |
2890 | |
4230 | |
2891 | EV_FREQUENT_CHECK; |
4231 | EV_FREQUENT_CHECK; |
2892 | |
4232 | |
2893 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4233 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2894 | } |
4234 | } |
2895 | |
4235 | |
2896 | void noinline |
4236 | ecb_noinline |
|
|
4237 | void |
2897 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4238 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2898 | { |
4239 | { |
2899 | clear_pending (EV_A_ (W)w); |
4240 | clear_pending (EV_A_ (W)w); |
2900 | if (expect_false (!ev_is_active (w))) |
4241 | if (ecb_expect_false (!ev_is_active (w))) |
2901 | return; |
4242 | return; |
2902 | |
4243 | |
2903 | EV_FREQUENT_CHECK; |
4244 | EV_FREQUENT_CHECK; |
2904 | |
4245 | |
2905 | { |
4246 | { |
… | |
… | |
2907 | |
4248 | |
2908 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4249 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2909 | |
4250 | |
2910 | --periodiccnt; |
4251 | --periodiccnt; |
2911 | |
4252 | |
2912 | if (expect_true (active < periodiccnt + HEAP0)) |
4253 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2913 | { |
4254 | { |
2914 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4255 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2915 | adjustheap (periodics, periodiccnt, active); |
4256 | adjustheap (periodics, periodiccnt, active); |
2916 | } |
4257 | } |
2917 | } |
4258 | } |
… | |
… | |
2919 | ev_stop (EV_A_ (W)w); |
4260 | ev_stop (EV_A_ (W)w); |
2920 | |
4261 | |
2921 | EV_FREQUENT_CHECK; |
4262 | EV_FREQUENT_CHECK; |
2922 | } |
4263 | } |
2923 | |
4264 | |
2924 | void noinline |
4265 | ecb_noinline |
|
|
4266 | void |
2925 | ev_periodic_again (EV_P_ ev_periodic *w) |
4267 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2926 | { |
4268 | { |
2927 | /* TODO: use adjustheap and recalculation */ |
4269 | /* TODO: use adjustheap and recalculation */ |
2928 | ev_periodic_stop (EV_A_ w); |
4270 | ev_periodic_stop (EV_A_ w); |
2929 | ev_periodic_start (EV_A_ w); |
4271 | ev_periodic_start (EV_A_ w); |
2930 | } |
4272 | } |
… | |
… | |
2934 | # define SA_RESTART 0 |
4276 | # define SA_RESTART 0 |
2935 | #endif |
4277 | #endif |
2936 | |
4278 | |
2937 | #if EV_SIGNAL_ENABLE |
4279 | #if EV_SIGNAL_ENABLE |
2938 | |
4280 | |
2939 | void noinline |
4281 | ecb_noinline |
|
|
4282 | void |
2940 | ev_signal_start (EV_P_ ev_signal *w) |
4283 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2941 | { |
4284 | { |
2942 | if (expect_false (ev_is_active (w))) |
4285 | if (ecb_expect_false (ev_is_active (w))) |
2943 | return; |
4286 | return; |
2944 | |
4287 | |
2945 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4288 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2946 | |
4289 | |
2947 | #if EV_MULTIPLICITY |
4290 | #if EV_MULTIPLICITY |
2948 | assert (("libev: a signal must not be attached to two different loops", |
4291 | assert (("libev: a signal must not be attached to two different loops", |
2949 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4292 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2950 | |
4293 | |
2951 | signals [w->signum - 1].loop = EV_A; |
4294 | signals [w->signum - 1].loop = EV_A; |
|
|
4295 | ECB_MEMORY_FENCE_RELEASE; |
2952 | #endif |
4296 | #endif |
2953 | |
4297 | |
2954 | EV_FREQUENT_CHECK; |
4298 | EV_FREQUENT_CHECK; |
2955 | |
4299 | |
2956 | #if EV_USE_SIGNALFD |
4300 | #if EV_USE_SIGNALFD |
… | |
… | |
3015 | } |
4359 | } |
3016 | |
4360 | |
3017 | EV_FREQUENT_CHECK; |
4361 | EV_FREQUENT_CHECK; |
3018 | } |
4362 | } |
3019 | |
4363 | |
3020 | void noinline |
4364 | ecb_noinline |
|
|
4365 | void |
3021 | ev_signal_stop (EV_P_ ev_signal *w) |
4366 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3022 | { |
4367 | { |
3023 | clear_pending (EV_A_ (W)w); |
4368 | clear_pending (EV_A_ (W)w); |
3024 | if (expect_false (!ev_is_active (w))) |
4369 | if (ecb_expect_false (!ev_is_active (w))) |
3025 | return; |
4370 | return; |
3026 | |
4371 | |
3027 | EV_FREQUENT_CHECK; |
4372 | EV_FREQUENT_CHECK; |
3028 | |
4373 | |
3029 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4374 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3057 | #endif |
4402 | #endif |
3058 | |
4403 | |
3059 | #if EV_CHILD_ENABLE |
4404 | #if EV_CHILD_ENABLE |
3060 | |
4405 | |
3061 | void |
4406 | void |
3062 | ev_child_start (EV_P_ ev_child *w) |
4407 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3063 | { |
4408 | { |
3064 | #if EV_MULTIPLICITY |
4409 | #if EV_MULTIPLICITY |
3065 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4410 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3066 | #endif |
4411 | #endif |
3067 | if (expect_false (ev_is_active (w))) |
4412 | if (ecb_expect_false (ev_is_active (w))) |
3068 | return; |
4413 | return; |
3069 | |
4414 | |
3070 | EV_FREQUENT_CHECK; |
4415 | EV_FREQUENT_CHECK; |
3071 | |
4416 | |
3072 | ev_start (EV_A_ (W)w, 1); |
4417 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3074 | |
4419 | |
3075 | EV_FREQUENT_CHECK; |
4420 | EV_FREQUENT_CHECK; |
3076 | } |
4421 | } |
3077 | |
4422 | |
3078 | void |
4423 | void |
3079 | ev_child_stop (EV_P_ ev_child *w) |
4424 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3080 | { |
4425 | { |
3081 | clear_pending (EV_A_ (W)w); |
4426 | clear_pending (EV_A_ (W)w); |
3082 | if (expect_false (!ev_is_active (w))) |
4427 | if (ecb_expect_false (!ev_is_active (w))) |
3083 | return; |
4428 | return; |
3084 | |
4429 | |
3085 | EV_FREQUENT_CHECK; |
4430 | EV_FREQUENT_CHECK; |
3086 | |
4431 | |
3087 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4432 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3101 | |
4446 | |
3102 | #define DEF_STAT_INTERVAL 5.0074891 |
4447 | #define DEF_STAT_INTERVAL 5.0074891 |
3103 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4448 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3104 | #define MIN_STAT_INTERVAL 0.1074891 |
4449 | #define MIN_STAT_INTERVAL 0.1074891 |
3105 | |
4450 | |
3106 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4451 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3107 | |
4452 | |
3108 | #if EV_USE_INOTIFY |
4453 | #if EV_USE_INOTIFY |
3109 | |
4454 | |
3110 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4455 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3111 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4456 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3112 | |
4457 | |
3113 | static void noinline |
4458 | ecb_noinline |
|
|
4459 | static void |
3114 | infy_add (EV_P_ ev_stat *w) |
4460 | infy_add (EV_P_ ev_stat *w) |
3115 | { |
4461 | { |
3116 | 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); |
4462 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4463 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4464 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4465 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3117 | |
4466 | |
3118 | if (w->wd >= 0) |
4467 | if (w->wd >= 0) |
3119 | { |
4468 | { |
3120 | struct statfs sfs; |
4469 | struct statfs sfs; |
3121 | |
4470 | |
… | |
… | |
3125 | |
4474 | |
3126 | if (!fs_2625) |
4475 | if (!fs_2625) |
3127 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4476 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3128 | else if (!statfs (w->path, &sfs) |
4477 | else if (!statfs (w->path, &sfs) |
3129 | && (sfs.f_type == 0x1373 /* devfs */ |
4478 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4479 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4480 | || sfs.f_type == 0x4d44 /* msdos */ |
3130 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4481 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4482 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4483 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4484 | || sfs.f_type == 0x5346544e /* ntfs */ |
3131 | || sfs.f_type == 0x3153464a /* jfs */ |
4485 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4486 | || sfs.f_type == 0x9123683e /* btrfs */ |
3132 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4487 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3133 | || sfs.f_type == 0x01021994 /* tempfs */ |
4488 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3134 | || sfs.f_type == 0x58465342 /* xfs */)) |
4489 | || sfs.f_type == 0x58465342 /* xfs */)) |
3135 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4490 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3136 | else |
4491 | else |
3137 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4492 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3138 | } |
4493 | } |
… | |
… | |
3173 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4528 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3174 | ev_timer_again (EV_A_ &w->timer); |
4529 | ev_timer_again (EV_A_ &w->timer); |
3175 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4530 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3176 | } |
4531 | } |
3177 | |
4532 | |
3178 | static void noinline |
4533 | ecb_noinline |
|
|
4534 | static void |
3179 | infy_del (EV_P_ ev_stat *w) |
4535 | infy_del (EV_P_ ev_stat *w) |
3180 | { |
4536 | { |
3181 | int slot; |
4537 | int slot; |
3182 | int wd = w->wd; |
4538 | int wd = w->wd; |
3183 | |
4539 | |
… | |
… | |
3190 | |
4546 | |
3191 | /* remove this watcher, if others are watching it, they will rearm */ |
4547 | /* remove this watcher, if others are watching it, they will rearm */ |
3192 | inotify_rm_watch (fs_fd, wd); |
4548 | inotify_rm_watch (fs_fd, wd); |
3193 | } |
4549 | } |
3194 | |
4550 | |
3195 | static void noinline |
4551 | ecb_noinline |
|
|
4552 | static void |
3196 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4553 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3197 | { |
4554 | { |
3198 | if (slot < 0) |
4555 | if (slot < 0) |
3199 | /* overflow, need to check for all hash slots */ |
4556 | /* overflow, need to check for all hash slots */ |
3200 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4557 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3236 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4593 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3237 | ofs += sizeof (struct inotify_event) + ev->len; |
4594 | ofs += sizeof (struct inotify_event) + ev->len; |
3238 | } |
4595 | } |
3239 | } |
4596 | } |
3240 | |
4597 | |
3241 | inline_size void |
4598 | inline_size ecb_cold |
|
|
4599 | void |
3242 | ev_check_2625 (EV_P) |
4600 | ev_check_2625 (EV_P) |
3243 | { |
4601 | { |
3244 | /* kernels < 2.6.25 are borked |
4602 | /* kernels < 2.6.25 are borked |
3245 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4603 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3246 | */ |
4604 | */ |
… | |
… | |
3251 | } |
4609 | } |
3252 | |
4610 | |
3253 | inline_size int |
4611 | inline_size int |
3254 | infy_newfd (void) |
4612 | infy_newfd (void) |
3255 | { |
4613 | { |
3256 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4614 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3257 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4615 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3258 | if (fd >= 0) |
4616 | if (fd >= 0) |
3259 | return fd; |
4617 | return fd; |
3260 | #endif |
4618 | #endif |
3261 | return inotify_init (); |
4619 | return inotify_init (); |
… | |
… | |
3336 | #else |
4694 | #else |
3337 | # define EV_LSTAT(p,b) lstat (p, b) |
4695 | # define EV_LSTAT(p,b) lstat (p, b) |
3338 | #endif |
4696 | #endif |
3339 | |
4697 | |
3340 | void |
4698 | void |
3341 | ev_stat_stat (EV_P_ ev_stat *w) |
4699 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3342 | { |
4700 | { |
3343 | if (lstat (w->path, &w->attr) < 0) |
4701 | if (lstat (w->path, &w->attr) < 0) |
3344 | w->attr.st_nlink = 0; |
4702 | w->attr.st_nlink = 0; |
3345 | else if (!w->attr.st_nlink) |
4703 | else if (!w->attr.st_nlink) |
3346 | w->attr.st_nlink = 1; |
4704 | w->attr.st_nlink = 1; |
3347 | } |
4705 | } |
3348 | |
4706 | |
3349 | static void noinline |
4707 | ecb_noinline |
|
|
4708 | static void |
3350 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4709 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3351 | { |
4710 | { |
3352 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4711 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3353 | |
4712 | |
3354 | ev_statdata prev = w->attr; |
4713 | ev_statdata prev = w->attr; |
… | |
… | |
3385 | ev_feed_event (EV_A_ w, EV_STAT); |
4744 | ev_feed_event (EV_A_ w, EV_STAT); |
3386 | } |
4745 | } |
3387 | } |
4746 | } |
3388 | |
4747 | |
3389 | void |
4748 | void |
3390 | ev_stat_start (EV_P_ ev_stat *w) |
4749 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3391 | { |
4750 | { |
3392 | if (expect_false (ev_is_active (w))) |
4751 | if (ecb_expect_false (ev_is_active (w))) |
3393 | return; |
4752 | return; |
3394 | |
4753 | |
3395 | ev_stat_stat (EV_A_ w); |
4754 | ev_stat_stat (EV_A_ w); |
3396 | |
4755 | |
3397 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4756 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3416 | |
4775 | |
3417 | EV_FREQUENT_CHECK; |
4776 | EV_FREQUENT_CHECK; |
3418 | } |
4777 | } |
3419 | |
4778 | |
3420 | void |
4779 | void |
3421 | ev_stat_stop (EV_P_ ev_stat *w) |
4780 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3422 | { |
4781 | { |
3423 | clear_pending (EV_A_ (W)w); |
4782 | clear_pending (EV_A_ (W)w); |
3424 | if (expect_false (!ev_is_active (w))) |
4783 | if (ecb_expect_false (!ev_is_active (w))) |
3425 | return; |
4784 | return; |
3426 | |
4785 | |
3427 | EV_FREQUENT_CHECK; |
4786 | EV_FREQUENT_CHECK; |
3428 | |
4787 | |
3429 | #if EV_USE_INOTIFY |
4788 | #if EV_USE_INOTIFY |
… | |
… | |
3442 | } |
4801 | } |
3443 | #endif |
4802 | #endif |
3444 | |
4803 | |
3445 | #if EV_IDLE_ENABLE |
4804 | #if EV_IDLE_ENABLE |
3446 | void |
4805 | void |
3447 | ev_idle_start (EV_P_ ev_idle *w) |
4806 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3448 | { |
4807 | { |
3449 | if (expect_false (ev_is_active (w))) |
4808 | if (ecb_expect_false (ev_is_active (w))) |
3450 | return; |
4809 | return; |
3451 | |
4810 | |
3452 | pri_adjust (EV_A_ (W)w); |
4811 | pri_adjust (EV_A_ (W)w); |
3453 | |
4812 | |
3454 | EV_FREQUENT_CHECK; |
4813 | EV_FREQUENT_CHECK; |
… | |
… | |
3457 | int active = ++idlecnt [ABSPRI (w)]; |
4816 | int active = ++idlecnt [ABSPRI (w)]; |
3458 | |
4817 | |
3459 | ++idleall; |
4818 | ++idleall; |
3460 | ev_start (EV_A_ (W)w, active); |
4819 | ev_start (EV_A_ (W)w, active); |
3461 | |
4820 | |
3462 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4821 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3463 | idles [ABSPRI (w)][active - 1] = w; |
4822 | idles [ABSPRI (w)][active - 1] = w; |
3464 | } |
4823 | } |
3465 | |
4824 | |
3466 | EV_FREQUENT_CHECK; |
4825 | EV_FREQUENT_CHECK; |
3467 | } |
4826 | } |
3468 | |
4827 | |
3469 | void |
4828 | void |
3470 | ev_idle_stop (EV_P_ ev_idle *w) |
4829 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3471 | { |
4830 | { |
3472 | clear_pending (EV_A_ (W)w); |
4831 | clear_pending (EV_A_ (W)w); |
3473 | if (expect_false (!ev_is_active (w))) |
4832 | if (ecb_expect_false (!ev_is_active (w))) |
3474 | return; |
4833 | return; |
3475 | |
4834 | |
3476 | EV_FREQUENT_CHECK; |
4835 | EV_FREQUENT_CHECK; |
3477 | |
4836 | |
3478 | { |
4837 | { |
… | |
… | |
3489 | } |
4848 | } |
3490 | #endif |
4849 | #endif |
3491 | |
4850 | |
3492 | #if EV_PREPARE_ENABLE |
4851 | #if EV_PREPARE_ENABLE |
3493 | void |
4852 | void |
3494 | ev_prepare_start (EV_P_ ev_prepare *w) |
4853 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3495 | { |
4854 | { |
3496 | if (expect_false (ev_is_active (w))) |
4855 | if (ecb_expect_false (ev_is_active (w))) |
3497 | return; |
4856 | return; |
3498 | |
4857 | |
3499 | EV_FREQUENT_CHECK; |
4858 | EV_FREQUENT_CHECK; |
3500 | |
4859 | |
3501 | ev_start (EV_A_ (W)w, ++preparecnt); |
4860 | ev_start (EV_A_ (W)w, ++preparecnt); |
3502 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4861 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3503 | prepares [preparecnt - 1] = w; |
4862 | prepares [preparecnt - 1] = w; |
3504 | |
4863 | |
3505 | EV_FREQUENT_CHECK; |
4864 | EV_FREQUENT_CHECK; |
3506 | } |
4865 | } |
3507 | |
4866 | |
3508 | void |
4867 | void |
3509 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4868 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3510 | { |
4869 | { |
3511 | clear_pending (EV_A_ (W)w); |
4870 | clear_pending (EV_A_ (W)w); |
3512 | if (expect_false (!ev_is_active (w))) |
4871 | if (ecb_expect_false (!ev_is_active (w))) |
3513 | return; |
4872 | return; |
3514 | |
4873 | |
3515 | EV_FREQUENT_CHECK; |
4874 | EV_FREQUENT_CHECK; |
3516 | |
4875 | |
3517 | { |
4876 | { |
… | |
… | |
3527 | } |
4886 | } |
3528 | #endif |
4887 | #endif |
3529 | |
4888 | |
3530 | #if EV_CHECK_ENABLE |
4889 | #if EV_CHECK_ENABLE |
3531 | void |
4890 | void |
3532 | ev_check_start (EV_P_ ev_check *w) |
4891 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
3533 | { |
4892 | { |
3534 | if (expect_false (ev_is_active (w))) |
4893 | if (ecb_expect_false (ev_is_active (w))) |
3535 | return; |
4894 | return; |
3536 | |
4895 | |
3537 | EV_FREQUENT_CHECK; |
4896 | EV_FREQUENT_CHECK; |
3538 | |
4897 | |
3539 | ev_start (EV_A_ (W)w, ++checkcnt); |
4898 | ev_start (EV_A_ (W)w, ++checkcnt); |
3540 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4899 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
3541 | checks [checkcnt - 1] = w; |
4900 | checks [checkcnt - 1] = w; |
3542 | |
4901 | |
3543 | EV_FREQUENT_CHECK; |
4902 | EV_FREQUENT_CHECK; |
3544 | } |
4903 | } |
3545 | |
4904 | |
3546 | void |
4905 | void |
3547 | ev_check_stop (EV_P_ ev_check *w) |
4906 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
3548 | { |
4907 | { |
3549 | clear_pending (EV_A_ (W)w); |
4908 | clear_pending (EV_A_ (W)w); |
3550 | if (expect_false (!ev_is_active (w))) |
4909 | if (ecb_expect_false (!ev_is_active (w))) |
3551 | return; |
4910 | return; |
3552 | |
4911 | |
3553 | EV_FREQUENT_CHECK; |
4912 | EV_FREQUENT_CHECK; |
3554 | |
4913 | |
3555 | { |
4914 | { |
… | |
… | |
3564 | EV_FREQUENT_CHECK; |
4923 | EV_FREQUENT_CHECK; |
3565 | } |
4924 | } |
3566 | #endif |
4925 | #endif |
3567 | |
4926 | |
3568 | #if EV_EMBED_ENABLE |
4927 | #if EV_EMBED_ENABLE |
3569 | void noinline |
4928 | ecb_noinline |
|
|
4929 | void |
3570 | ev_embed_sweep (EV_P_ ev_embed *w) |
4930 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
3571 | { |
4931 | { |
3572 | ev_run (w->other, EVRUN_NOWAIT); |
4932 | ev_run (w->other, EVRUN_NOWAIT); |
3573 | } |
4933 | } |
3574 | |
4934 | |
3575 | static void |
4935 | static void |
… | |
… | |
3623 | ev_idle_stop (EV_A_ idle); |
4983 | ev_idle_stop (EV_A_ idle); |
3624 | } |
4984 | } |
3625 | #endif |
4985 | #endif |
3626 | |
4986 | |
3627 | void |
4987 | void |
3628 | ev_embed_start (EV_P_ ev_embed *w) |
4988 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3629 | { |
4989 | { |
3630 | if (expect_false (ev_is_active (w))) |
4990 | if (ecb_expect_false (ev_is_active (w))) |
3631 | return; |
4991 | return; |
3632 | |
4992 | |
3633 | { |
4993 | { |
3634 | EV_P = w->other; |
4994 | EV_P = w->other; |
3635 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4995 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
3654 | |
5014 | |
3655 | EV_FREQUENT_CHECK; |
5015 | EV_FREQUENT_CHECK; |
3656 | } |
5016 | } |
3657 | |
5017 | |
3658 | void |
5018 | void |
3659 | ev_embed_stop (EV_P_ ev_embed *w) |
5019 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3660 | { |
5020 | { |
3661 | clear_pending (EV_A_ (W)w); |
5021 | clear_pending (EV_A_ (W)w); |
3662 | if (expect_false (!ev_is_active (w))) |
5022 | if (ecb_expect_false (!ev_is_active (w))) |
3663 | return; |
5023 | return; |
3664 | |
5024 | |
3665 | EV_FREQUENT_CHECK; |
5025 | EV_FREQUENT_CHECK; |
3666 | |
5026 | |
3667 | ev_io_stop (EV_A_ &w->io); |
5027 | ev_io_stop (EV_A_ &w->io); |
… | |
… | |
3674 | } |
5034 | } |
3675 | #endif |
5035 | #endif |
3676 | |
5036 | |
3677 | #if EV_FORK_ENABLE |
5037 | #if EV_FORK_ENABLE |
3678 | void |
5038 | void |
3679 | ev_fork_start (EV_P_ ev_fork *w) |
5039 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3680 | { |
5040 | { |
3681 | if (expect_false (ev_is_active (w))) |
5041 | if (ecb_expect_false (ev_is_active (w))) |
3682 | return; |
5042 | return; |
3683 | |
5043 | |
3684 | EV_FREQUENT_CHECK; |
5044 | EV_FREQUENT_CHECK; |
3685 | |
5045 | |
3686 | ev_start (EV_A_ (W)w, ++forkcnt); |
5046 | ev_start (EV_A_ (W)w, ++forkcnt); |
3687 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5047 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3688 | forks [forkcnt - 1] = w; |
5048 | forks [forkcnt - 1] = w; |
3689 | |
5049 | |
3690 | EV_FREQUENT_CHECK; |
5050 | EV_FREQUENT_CHECK; |
3691 | } |
5051 | } |
3692 | |
5052 | |
3693 | void |
5053 | void |
3694 | ev_fork_stop (EV_P_ ev_fork *w) |
5054 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3695 | { |
5055 | { |
3696 | clear_pending (EV_A_ (W)w); |
5056 | clear_pending (EV_A_ (W)w); |
3697 | if (expect_false (!ev_is_active (w))) |
5057 | if (ecb_expect_false (!ev_is_active (w))) |
3698 | return; |
5058 | return; |
3699 | |
5059 | |
3700 | EV_FREQUENT_CHECK; |
5060 | EV_FREQUENT_CHECK; |
3701 | |
5061 | |
3702 | { |
5062 | { |
… | |
… | |
3712 | } |
5072 | } |
3713 | #endif |
5073 | #endif |
3714 | |
5074 | |
3715 | #if EV_CLEANUP_ENABLE |
5075 | #if EV_CLEANUP_ENABLE |
3716 | void |
5076 | void |
3717 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
5077 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
3718 | { |
5078 | { |
3719 | if (expect_false (ev_is_active (w))) |
5079 | if (ecb_expect_false (ev_is_active (w))) |
3720 | return; |
5080 | return; |
3721 | |
5081 | |
3722 | EV_FREQUENT_CHECK; |
5082 | EV_FREQUENT_CHECK; |
3723 | |
5083 | |
3724 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5084 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
3725 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5085 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
3726 | cleanups [cleanupcnt - 1] = w; |
5086 | cleanups [cleanupcnt - 1] = w; |
3727 | |
5087 | |
3728 | /* cleanup watchers should never keep a refcount on the loop */ |
5088 | /* cleanup watchers should never keep a refcount on the loop */ |
3729 | ev_unref (EV_A); |
5089 | ev_unref (EV_A); |
3730 | EV_FREQUENT_CHECK; |
5090 | EV_FREQUENT_CHECK; |
3731 | } |
5091 | } |
3732 | |
5092 | |
3733 | void |
5093 | void |
3734 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
5094 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
3735 | { |
5095 | { |
3736 | clear_pending (EV_A_ (W)w); |
5096 | clear_pending (EV_A_ (W)w); |
3737 | if (expect_false (!ev_is_active (w))) |
5097 | if (ecb_expect_false (!ev_is_active (w))) |
3738 | return; |
5098 | return; |
3739 | |
5099 | |
3740 | EV_FREQUENT_CHECK; |
5100 | EV_FREQUENT_CHECK; |
3741 | ev_ref (EV_A); |
5101 | ev_ref (EV_A); |
3742 | |
5102 | |
… | |
… | |
3753 | } |
5113 | } |
3754 | #endif |
5114 | #endif |
3755 | |
5115 | |
3756 | #if EV_ASYNC_ENABLE |
5116 | #if EV_ASYNC_ENABLE |
3757 | void |
5117 | void |
3758 | ev_async_start (EV_P_ ev_async *w) |
5118 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3759 | { |
5119 | { |
3760 | if (expect_false (ev_is_active (w))) |
5120 | if (ecb_expect_false (ev_is_active (w))) |
3761 | return; |
5121 | return; |
3762 | |
5122 | |
3763 | w->sent = 0; |
5123 | w->sent = 0; |
3764 | |
5124 | |
3765 | evpipe_init (EV_A); |
5125 | evpipe_init (EV_A); |
3766 | |
5126 | |
3767 | EV_FREQUENT_CHECK; |
5127 | EV_FREQUENT_CHECK; |
3768 | |
5128 | |
3769 | ev_start (EV_A_ (W)w, ++asynccnt); |
5129 | ev_start (EV_A_ (W)w, ++asynccnt); |
3770 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5130 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3771 | asyncs [asynccnt - 1] = w; |
5131 | asyncs [asynccnt - 1] = w; |
3772 | |
5132 | |
3773 | EV_FREQUENT_CHECK; |
5133 | EV_FREQUENT_CHECK; |
3774 | } |
5134 | } |
3775 | |
5135 | |
3776 | void |
5136 | void |
3777 | ev_async_stop (EV_P_ ev_async *w) |
5137 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3778 | { |
5138 | { |
3779 | clear_pending (EV_A_ (W)w); |
5139 | clear_pending (EV_A_ (W)w); |
3780 | if (expect_false (!ev_is_active (w))) |
5140 | if (ecb_expect_false (!ev_is_active (w))) |
3781 | return; |
5141 | return; |
3782 | |
5142 | |
3783 | EV_FREQUENT_CHECK; |
5143 | EV_FREQUENT_CHECK; |
3784 | |
5144 | |
3785 | { |
5145 | { |
… | |
… | |
3793 | |
5153 | |
3794 | EV_FREQUENT_CHECK; |
5154 | EV_FREQUENT_CHECK; |
3795 | } |
5155 | } |
3796 | |
5156 | |
3797 | void |
5157 | void |
3798 | ev_async_send (EV_P_ ev_async *w) |
5158 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3799 | { |
5159 | { |
3800 | w->sent = 1; |
5160 | w->sent = 1; |
3801 | evpipe_write (EV_A_ &async_pending); |
5161 | evpipe_write (EV_A_ &async_pending); |
3802 | } |
5162 | } |
3803 | #endif |
5163 | #endif |
… | |
… | |
3840 | |
5200 | |
3841 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5201 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3842 | } |
5202 | } |
3843 | |
5203 | |
3844 | void |
5204 | void |
3845 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5205 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3846 | { |
5206 | { |
3847 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5207 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3848 | |
|
|
3849 | if (expect_false (!once)) |
|
|
3850 | { |
|
|
3851 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
3852 | return; |
|
|
3853 | } |
|
|
3854 | |
5208 | |
3855 | once->cb = cb; |
5209 | once->cb = cb; |
3856 | once->arg = arg; |
5210 | once->arg = arg; |
3857 | |
5211 | |
3858 | ev_init (&once->io, once_cb_io); |
5212 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3871 | } |
5225 | } |
3872 | |
5226 | |
3873 | /*****************************************************************************/ |
5227 | /*****************************************************************************/ |
3874 | |
5228 | |
3875 | #if EV_WALK_ENABLE |
5229 | #if EV_WALK_ENABLE |
|
|
5230 | ecb_cold |
3876 | void |
5231 | void |
3877 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5232 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3878 | { |
5233 | { |
3879 | int i, j; |
5234 | int i, j; |
3880 | ev_watcher_list *wl, *wn; |
5235 | ev_watcher_list *wl, *wn; |
3881 | |
5236 | |
3882 | if (types & (EV_IO | EV_EMBED)) |
5237 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3925 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5280 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3926 | #endif |
5281 | #endif |
3927 | |
5282 | |
3928 | #if EV_IDLE_ENABLE |
5283 | #if EV_IDLE_ENABLE |
3929 | if (types & EV_IDLE) |
5284 | if (types & EV_IDLE) |
3930 | for (j = NUMPRI; i--; ) |
5285 | for (j = NUMPRI; j--; ) |
3931 | for (i = idlecnt [j]; i--; ) |
5286 | for (i = idlecnt [j]; i--; ) |
3932 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5287 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3933 | #endif |
5288 | #endif |
3934 | |
5289 | |
3935 | #if EV_FORK_ENABLE |
5290 | #if EV_FORK_ENABLE |
… | |
… | |
3988 | |
5343 | |
3989 | #if EV_MULTIPLICITY |
5344 | #if EV_MULTIPLICITY |
3990 | #include "ev_wrap.h" |
5345 | #include "ev_wrap.h" |
3991 | #endif |
5346 | #endif |
3992 | |
5347 | |
3993 | EV_CPP(}) |
|
|
3994 | |
|
|