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 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
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|
41 | extern "C" { |
|
|
42 | #endif |
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43 | |
|
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44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
|
|
46 | # endif |
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47 | |
|
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48 | # if HAVE_FLOOR |
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49 | # ifndef EV_USE_FLOOR |
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50 | # define EV_USE_FLOOR 1 |
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|
51 | # endif |
50 | # endif |
52 | # endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
63 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
64 | # endif |
66 | # endif |
65 | |
67 | |
66 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
67 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
160 | # define EV_USE_EVENTFD 0 |
162 | # define EV_USE_EVENTFD 0 |
161 | # endif |
163 | # endif |
162 | |
164 | |
163 | #endif |
165 | #endif |
164 | |
166 | |
165 | #include <math.h> |
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|
166 | #include <stdlib.h> |
167 | #include <stdlib.h> |
167 | #include <string.h> |
168 | #include <string.h> |
168 | #include <fcntl.h> |
169 | #include <fcntl.h> |
169 | #include <stddef.h> |
170 | #include <stddef.h> |
170 | |
171 | |
… | |
… | |
182 | # include EV_H |
183 | # include EV_H |
183 | #else |
184 | #else |
184 | # include "ev.h" |
185 | # include "ev.h" |
185 | #endif |
186 | #endif |
186 | |
187 | |
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188 | #if EV_NO_THREADS |
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189 | # undef EV_NO_SMP |
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190 | # define EV_NO_SMP 1 |
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191 | # undef ECB_NO_THREADS |
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192 | # define ECB_NO_THREADS 1 |
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193 | #endif |
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194 | #if EV_NO_SMP |
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195 | # undef EV_NO_SMP |
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196 | # define ECB_NO_SMP 1 |
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197 | #endif |
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198 | |
187 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
188 | # include <sys/time.h> |
200 | # include <sys/time.h> |
189 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
190 | # include <unistd.h> |
202 | # include <unistd.h> |
191 | #else |
203 | #else |
192 | # include <io.h> |
204 | # include <io.h> |
193 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
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206 | # include <winsock2.h> |
194 | # include <windows.h> |
207 | # include <windows.h> |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
197 | # endif |
210 | # endif |
198 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
207 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
208 | |
221 | |
209 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
210 | |
223 | |
211 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
212 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
213 | /* use what's provided */ |
226 | /* use what's provided */ |
214 | #elif defined (NSIG) |
227 | #elif defined NSIG |
215 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
216 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
217 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
218 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
219 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
220 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
221 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
222 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
223 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
224 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
225 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
226 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
227 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
228 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
229 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
230 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
231 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
232 | #else |
245 | #else |
233 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
234 | /* to make it compile regardless, just remove the above line, */ |
247 | #endif |
235 | /* but consider reporting it, too! :) */ |
248 | |
236 | # define EV_NSIG 65 |
249 | #ifndef EV_USE_FLOOR |
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|
250 | # define EV_USE_FLOOR 0 |
237 | #endif |
251 | #endif |
238 | |
252 | |
239 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
240 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
241 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
242 | # else |
256 | # else |
243 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
244 | # endif |
258 | # endif |
245 | #endif |
259 | #endif |
246 | |
260 | |
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261 | #if !(_POSIX_TIMERS > 0) |
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262 | # ifndef EV_USE_MONOTONIC |
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263 | # define EV_USE_MONOTONIC 0 |
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264 | # endif |
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265 | # ifndef EV_USE_REALTIME |
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266 | # define EV_USE_REALTIME 0 |
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267 | # endif |
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268 | #endif |
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269 | |
247 | #ifndef EV_USE_MONOTONIC |
270 | #ifndef EV_USE_MONOTONIC |
248 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
271 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
249 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
272 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
250 | # else |
273 | # else |
251 | # define EV_USE_MONOTONIC 0 |
274 | # define EV_USE_MONOTONIC 0 |
252 | # endif |
275 | # endif |
253 | #endif |
276 | #endif |
… | |
… | |
340 | |
363 | |
341 | #ifndef EV_HEAP_CACHE_AT |
364 | #ifndef EV_HEAP_CACHE_AT |
342 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
365 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
343 | #endif |
366 | #endif |
344 | |
367 | |
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368 | #ifdef __ANDROID__ |
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369 | /* supposedly, android doesn't typedef fd_mask */ |
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370 | # undef EV_USE_SELECT |
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371 | # define EV_USE_SELECT 0 |
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372 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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373 | # undef EV_USE_CLOCK_SYSCALL |
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374 | # define EV_USE_CLOCK_SYSCALL 0 |
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375 | #endif |
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376 | |
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377 | /* aix's poll.h seems to cause lots of trouble */ |
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378 | #ifdef _AIX |
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379 | /* AIX has a completely broken poll.h header */ |
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380 | # undef EV_USE_POLL |
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381 | # define EV_USE_POLL 0 |
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382 | #endif |
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383 | |
345 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
384 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
346 | /* which makes programs even slower. might work on other unices, too. */ |
385 | /* which makes programs even slower. might work on other unices, too. */ |
347 | #if EV_USE_CLOCK_SYSCALL |
386 | #if EV_USE_CLOCK_SYSCALL |
348 | # include <syscall.h> |
387 | # include <sys/syscall.h> |
349 | # ifdef SYS_clock_gettime |
388 | # ifdef SYS_clock_gettime |
350 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
389 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
351 | # undef EV_USE_MONOTONIC |
390 | # undef EV_USE_MONOTONIC |
352 | # define EV_USE_MONOTONIC 1 |
391 | # define EV_USE_MONOTONIC 1 |
353 | # else |
392 | # else |
… | |
… | |
356 | # endif |
395 | # endif |
357 | #endif |
396 | #endif |
358 | |
397 | |
359 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
398 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
360 | |
399 | |
361 | #ifdef _AIX |
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362 | /* AIX has a completely broken poll.h header */ |
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363 | # undef EV_USE_POLL |
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364 | # define EV_USE_POLL 0 |
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365 | #endif |
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366 | |
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367 | #ifndef CLOCK_MONOTONIC |
400 | #ifndef CLOCK_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
401 | # undef EV_USE_MONOTONIC |
369 | # define EV_USE_MONOTONIC 0 |
402 | # define EV_USE_MONOTONIC 0 |
370 | #endif |
403 | #endif |
371 | |
404 | |
… | |
… | |
378 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
379 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
380 | #endif |
413 | #endif |
381 | |
414 | |
382 | #if !EV_USE_NANOSLEEP |
415 | #if !EV_USE_NANOSLEEP |
383 | # ifndef _WIN32 |
416 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
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417 | # if !defined _WIN32 && !defined __hpux |
384 | # include <sys/select.h> |
418 | # include <sys/select.h> |
385 | # endif |
419 | # endif |
386 | #endif |
420 | #endif |
387 | |
421 | |
388 | #if EV_USE_INOTIFY |
422 | #if EV_USE_INOTIFY |
389 | # include <sys/utsname.h> |
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390 | # include <sys/statfs.h> |
423 | # include <sys/statfs.h> |
391 | # include <sys/inotify.h> |
424 | # include <sys/inotify.h> |
392 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
425 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
393 | # ifndef IN_DONT_FOLLOW |
426 | # ifndef IN_DONT_FOLLOW |
394 | # undef EV_USE_INOTIFY |
427 | # undef EV_USE_INOTIFY |
395 | # define EV_USE_INOTIFY 0 |
428 | # define EV_USE_INOTIFY 0 |
396 | # endif |
429 | # endif |
397 | #endif |
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398 | |
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399 | #if EV_SELECT_IS_WINSOCKET |
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400 | # include <winsock.h> |
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401 | #endif |
430 | #endif |
402 | |
431 | |
403 | #if EV_USE_EVENTFD |
432 | #if EV_USE_EVENTFD |
404 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
405 | # include <stdint.h> |
434 | # include <stdint.h> |
… | |
… | |
411 | # define EFD_CLOEXEC O_CLOEXEC |
440 | # define EFD_CLOEXEC O_CLOEXEC |
412 | # else |
441 | # else |
413 | # define EFD_CLOEXEC 02000000 |
442 | # define EFD_CLOEXEC 02000000 |
414 | # endif |
443 | # endif |
415 | # endif |
444 | # endif |
416 | # ifdef __cplusplus |
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417 | extern "C" { |
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418 | # endif |
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419 | int (eventfd) (unsigned int initval, int flags); |
445 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
420 | # ifdef __cplusplus |
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421 | } |
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422 | # endif |
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423 | #endif |
446 | #endif |
424 | |
447 | |
425 | #if EV_USE_SIGNALFD |
448 | #if EV_USE_SIGNALFD |
426 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
449 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | # include <stdint.h> |
450 | # include <stdint.h> |
… | |
… | |
433 | # define SFD_CLOEXEC O_CLOEXEC |
456 | # define SFD_CLOEXEC O_CLOEXEC |
434 | # else |
457 | # else |
435 | # define SFD_CLOEXEC 02000000 |
458 | # define SFD_CLOEXEC 02000000 |
436 | # endif |
459 | # endif |
437 | # endif |
460 | # endif |
438 | # ifdef __cplusplus |
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439 | extern "C" { |
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440 | # endif |
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441 | int signalfd (int fd, const sigset_t *mask, int flags); |
461 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
442 | |
462 | |
443 | struct signalfd_siginfo |
463 | struct signalfd_siginfo |
444 | { |
464 | { |
445 | uint32_t ssi_signo; |
465 | uint32_t ssi_signo; |
446 | char pad[128 - sizeof (uint32_t)]; |
466 | char pad[128 - sizeof (uint32_t)]; |
447 | }; |
467 | }; |
448 | # ifdef __cplusplus |
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449 | } |
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450 | # endif |
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451 | #endif |
468 | #endif |
452 | |
469 | |
453 | /**/ |
470 | /**/ |
454 | |
471 | |
455 | #if EV_VERIFY >= 3 |
472 | #if EV_VERIFY >= 3 |
… | |
… | |
457 | #else |
474 | #else |
458 | # define EV_FREQUENT_CHECK do { } while (0) |
475 | # define EV_FREQUENT_CHECK do { } while (0) |
459 | #endif |
476 | #endif |
460 | |
477 | |
461 | /* |
478 | /* |
462 | * This is used to avoid floating point rounding problems. |
479 | * This is used to work around floating point rounding problems. |
463 | * It is added to ev_rt_now when scheduling periodics |
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464 | * to ensure progress, time-wise, even when rounding |
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465 | * errors are against us. |
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466 | * This value is good at least till the year 4000. |
480 | * This value is good at least till the year 4000. |
467 | * Better solutions welcome. |
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468 | */ |
481 | */ |
469 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
482 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
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483 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
470 | |
484 | |
471 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
485 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
472 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
486 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
473 | |
487 | |
474 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
488 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
475 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
489 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
476 | |
490 | |
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491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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492 | /* ECB.H BEGIN */ |
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493 | /* |
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494 | * libecb - http://software.schmorp.de/pkg/libecb |
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495 | * |
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496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
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497 | * Copyright (©) 2011 Emanuele Giaquinta |
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498 | * All rights reserved. |
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499 | * |
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500 | * Redistribution and use in source and binary forms, with or without modifica- |
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501 | * tion, are permitted provided that the following conditions are met: |
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502 | * |
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503 | * 1. Redistributions of source code must retain the above copyright notice, |
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504 | * this list of conditions and the following disclaimer. |
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505 | * |
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506 | * 2. Redistributions in binary form must reproduce the above copyright |
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507 | * notice, this list of conditions and the following disclaimer in the |
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508 | * documentation and/or other materials provided with the distribution. |
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509 | * |
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510 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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511 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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512 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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513 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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514 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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515 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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516 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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517 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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518 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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519 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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520 | * |
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521 | * Alternatively, the contents of this file may be used under the terms of |
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522 | * the GNU General Public License ("GPL") version 2 or any later version, |
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523 | * in which case the provisions of the GPL are applicable instead of |
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524 | * the above. If you wish to allow the use of your version of this file |
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525 | * only under the terms of the GPL and not to allow others to use your |
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526 | * version of this file under the BSD license, indicate your decision |
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527 | * by deleting the provisions above and replace them with the notice |
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528 | * and other provisions required by the GPL. If you do not delete the |
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529 | * provisions above, a recipient may use your version of this file under |
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530 | * either the BSD or the GPL. |
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531 | */ |
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532 | |
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533 | #ifndef ECB_H |
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534 | #define ECB_H |
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535 | |
|
|
536 | /* 16 bits major, 16 bits minor */ |
|
|
537 | #define ECB_VERSION 0x00010005 |
|
|
538 | |
|
|
539 | #ifdef _WIN32 |
|
|
540 | typedef signed char int8_t; |
|
|
541 | typedef unsigned char uint8_t; |
|
|
542 | typedef signed short int16_t; |
|
|
543 | typedef unsigned short uint16_t; |
|
|
544 | typedef signed int int32_t; |
|
|
545 | typedef unsigned int uint32_t; |
477 | #if __GNUC__ >= 4 |
546 | #if __GNUC__ |
|
|
547 | typedef signed long long int64_t; |
|
|
548 | typedef unsigned long long uint64_t; |
|
|
549 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
550 | typedef signed __int64 int64_t; |
|
|
551 | typedef unsigned __int64 uint64_t; |
|
|
552 | #endif |
|
|
553 | #ifdef _WIN64 |
|
|
554 | #define ECB_PTRSIZE 8 |
|
|
555 | typedef uint64_t uintptr_t; |
|
|
556 | typedef int64_t intptr_t; |
|
|
557 | #else |
|
|
558 | #define ECB_PTRSIZE 4 |
|
|
559 | typedef uint32_t uintptr_t; |
|
|
560 | typedef int32_t intptr_t; |
|
|
561 | #endif |
|
|
562 | #else |
|
|
563 | #include <inttypes.h> |
|
|
564 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
|
|
565 | #define ECB_PTRSIZE 8 |
|
|
566 | #else |
|
|
567 | #define ECB_PTRSIZE 4 |
|
|
568 | #endif |
|
|
569 | #endif |
|
|
570 | |
|
|
571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
573 | |
|
|
574 | /* work around x32 idiocy by defining proper macros */ |
|
|
575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
576 | #if _ILP32 |
|
|
577 | #define ECB_AMD64_X32 1 |
|
|
578 | #else |
|
|
579 | #define ECB_AMD64 1 |
|
|
580 | #endif |
|
|
581 | #endif |
|
|
582 | |
|
|
583 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
584 | * what their idiot authors think are the "more important" extensions, |
|
|
585 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
586 | * or so. |
|
|
587 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
588 | * an issue with that they should have done it right in the first place. |
|
|
589 | */ |
|
|
590 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
591 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
592 | #else |
|
|
593 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
594 | #endif |
|
|
595 | |
|
|
596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
597 | |
|
|
598 | #if __clang__ && defined __has_builtin |
|
|
599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
600 | #else |
|
|
601 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | #if __clang__ && defined __has_extension |
|
|
605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
606 | #else |
|
|
607 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #define ECB_CPP (__cplusplus+0) |
|
|
611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
612 | |
|
|
613 | #if ECB_CPP |
|
|
614 | #define ECB_C 0 |
|
|
615 | #define ECB_STDC_VERSION 0 |
|
|
616 | #else |
|
|
617 | #define ECB_C 1 |
|
|
618 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
622 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
623 | |
|
|
624 | #if ECB_CPP |
|
|
625 | #define ECB_EXTERN_C extern "C" |
|
|
626 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
627 | #define ECB_EXTERN_C_END } |
|
|
628 | #else |
|
|
629 | #define ECB_EXTERN_C extern |
|
|
630 | #define ECB_EXTERN_C_BEG |
|
|
631 | #define ECB_EXTERN_C_END |
|
|
632 | #endif |
|
|
633 | |
|
|
634 | /*****************************************************************************/ |
|
|
635 | |
|
|
636 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
637 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
638 | |
|
|
639 | #if ECB_NO_THREADS |
|
|
640 | #define ECB_NO_SMP 1 |
|
|
641 | #endif |
|
|
642 | |
|
|
643 | #if ECB_NO_SMP |
|
|
644 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
645 | #endif |
|
|
646 | |
|
|
647 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
648 | #if __xlC__ && ECB_CPP |
|
|
649 | #include <builtins.h> |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #if 1400 <= _MSC_VER |
|
|
653 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
654 | #endif |
|
|
655 | |
|
|
656 | #ifndef ECB_MEMORY_FENCE |
|
|
657 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
658 | #if __i386 || __i386__ |
|
|
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
662 | #elif ECB_GCC_AMD64 |
|
|
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
664 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
665 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
666 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
667 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
668 | #elif defined __ARM_ARCH_2__ \ |
|
|
669 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
670 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
671 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
672 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
673 | || defined __ARM_ARCH_5TEJ__ |
|
|
674 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
675 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
676 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
677 | || defined __ARM_ARCH_6T2__ |
|
|
678 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
679 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
680 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
681 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
682 | #elif __aarch64__ |
|
|
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
684 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
686 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
687 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
688 | #elif defined __s390__ || defined __s390x__ |
|
|
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
690 | #elif defined __mips__ |
|
|
691 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
692 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
693 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
694 | #elif defined __alpha__ |
|
|
695 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
696 | #elif defined __hppa__ |
|
|
697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
698 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
699 | #elif defined __ia64__ |
|
|
700 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
701 | #elif defined __m68k__ |
|
|
702 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
703 | #elif defined __m88k__ |
|
|
704 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
705 | #elif defined __sh__ |
|
|
706 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
707 | #endif |
|
|
708 | #endif |
|
|
709 | #endif |
|
|
710 | |
|
|
711 | #ifndef ECB_MEMORY_FENCE |
|
|
712 | #if ECB_GCC_VERSION(4,7) |
|
|
713 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
714 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
715 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
716 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
717 | |
|
|
718 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
719 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
720 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
721 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
722 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
723 | |
|
|
724 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
725 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
726 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
727 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
728 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
729 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
730 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
731 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
732 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
733 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
734 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
735 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
736 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
737 | #elif defined _WIN32 |
|
|
738 | #include <WinNT.h> |
|
|
739 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
740 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
741 | #include <mbarrier.h> |
|
|
742 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
743 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
744 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
745 | #elif __xlC__ |
|
|
746 | #define ECB_MEMORY_FENCE __sync () |
|
|
747 | #endif |
|
|
748 | #endif |
|
|
749 | |
|
|
750 | #ifndef ECB_MEMORY_FENCE |
|
|
751 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
752 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
753 | /* not just C11 atomics and atomic accesses */ |
|
|
754 | #include <stdatomic.h> |
|
|
755 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
756 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
757 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
758 | /* for most usages, or gcc and clang have a bug */ |
|
|
759 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
760 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
761 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
762 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
763 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
764 | #endif |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | #ifndef ECB_MEMORY_FENCE |
|
|
768 | #if !ECB_AVOID_PTHREADS |
|
|
769 | /* |
|
|
770 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
771 | * or failure to find pthread.h, then you should implement |
|
|
772 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
773 | * OR provide pthread.h and link against the posix thread library |
|
|
774 | * of your system. |
|
|
775 | */ |
|
|
776 | #include <pthread.h> |
|
|
777 | #define ECB_NEEDS_PTHREADS 1 |
|
|
778 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
779 | |
|
|
780 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
781 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
782 | #endif |
|
|
783 | #endif |
|
|
784 | |
|
|
785 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
786 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
787 | #endif |
|
|
788 | |
|
|
789 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
790 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
791 | #endif |
|
|
792 | |
|
|
793 | /*****************************************************************************/ |
|
|
794 | |
|
|
795 | #if ECB_CPP |
|
|
796 | #define ecb_inline static inline |
|
|
797 | #elif ECB_GCC_VERSION(2,5) |
|
|
798 | #define ecb_inline static __inline__ |
|
|
799 | #elif ECB_C99 |
|
|
800 | #define ecb_inline static inline |
|
|
801 | #else |
|
|
802 | #define ecb_inline static |
|
|
803 | #endif |
|
|
804 | |
|
|
805 | #if ECB_GCC_VERSION(3,3) |
|
|
806 | #define ecb_restrict __restrict__ |
|
|
807 | #elif ECB_C99 |
|
|
808 | #define ecb_restrict restrict |
|
|
809 | #else |
|
|
810 | #define ecb_restrict |
|
|
811 | #endif |
|
|
812 | |
|
|
813 | typedef int ecb_bool; |
|
|
814 | |
|
|
815 | #define ECB_CONCAT_(a, b) a ## b |
|
|
816 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
817 | #define ECB_STRINGIFY_(a) # a |
|
|
818 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
819 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
820 | |
|
|
821 | #define ecb_function_ ecb_inline |
|
|
822 | |
|
|
823 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
824 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
825 | #else |
|
|
826 | #define ecb_attribute(attrlist) |
|
|
827 | #endif |
|
|
828 | |
|
|
829 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
830 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
831 | #else |
|
|
832 | /* possible C11 impl for integral types |
|
|
833 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
834 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
835 | |
|
|
836 | #define ecb_is_constant(expr) 0 |
|
|
837 | #endif |
|
|
838 | |
|
|
839 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
478 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
840 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
479 | # define noinline __attribute__ ((noinline)) |
|
|
480 | #else |
841 | #else |
481 | # define expect(expr,value) (expr) |
842 | #define ecb_expect(expr,value) (expr) |
482 | # define noinline |
|
|
483 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
484 | # define inline |
|
|
485 | # endif |
843 | #endif |
486 | #endif |
|
|
487 | |
844 | |
|
|
845 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
846 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
847 | #else |
|
|
848 | #define ecb_prefetch(addr,rw,locality) |
|
|
849 | #endif |
|
|
850 | |
|
|
851 | /* no emulation for ecb_decltype */ |
|
|
852 | #if ECB_CPP11 |
|
|
853 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
854 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
855 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
856 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
857 | #define ecb_decltype(x) __typeof__ (x) |
|
|
858 | #endif |
|
|
859 | |
|
|
860 | #if _MSC_VER >= 1300 |
|
|
861 | #define ecb_deprecated __declspec (deprecated) |
|
|
862 | #else |
|
|
863 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
864 | #endif |
|
|
865 | |
|
|
866 | #if _MSC_VER >= 1500 |
|
|
867 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
868 | #elif ECB_GCC_VERSION(4,5) |
|
|
869 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
870 | #else |
|
|
871 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | #if _MSC_VER >= 1400 |
|
|
875 | #define ecb_noinline __declspec (noinline) |
|
|
876 | #else |
|
|
877 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
881 | #define ecb_const ecb_attribute ((__const__)) |
|
|
882 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
883 | |
|
|
884 | #if ECB_C11 || __IBMC_NORETURN |
|
|
885 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
886 | #define ecb_noreturn _Noreturn |
|
|
887 | #elif ECB_CPP11 |
|
|
888 | #define ecb_noreturn [[noreturn]] |
|
|
889 | #elif _MSC_VER >= 1200 |
|
|
890 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
891 | #define ecb_noreturn __declspec (noreturn) |
|
|
892 | #else |
|
|
893 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
894 | #endif |
|
|
895 | |
|
|
896 | #if ECB_GCC_VERSION(4,3) |
|
|
897 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
898 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
899 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
900 | #else |
|
|
901 | #define ecb_artificial |
|
|
902 | #define ecb_hot |
|
|
903 | #define ecb_cold |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | /* put around conditional expressions if you are very sure that the */ |
|
|
907 | /* expression is mostly true or mostly false. note that these return */ |
|
|
908 | /* booleans, not the expression. */ |
488 | #define expect_false(expr) expect ((expr) != 0, 0) |
909 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
489 | #define expect_true(expr) expect ((expr) != 0, 1) |
910 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
911 | /* for compatibility to the rest of the world */ |
|
|
912 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
913 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
914 | |
|
|
915 | /* count trailing zero bits and count # of one bits */ |
|
|
916 | #if ECB_GCC_VERSION(3,4) \ |
|
|
917 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
918 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
919 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
920 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
921 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
922 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
923 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
924 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
925 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
926 | /* no popcountll */ |
|
|
927 | #else |
|
|
928 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
929 | ecb_function_ ecb_const int |
|
|
930 | ecb_ctz32 (uint32_t x) |
|
|
931 | { |
|
|
932 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
933 | unsigned long r; |
|
|
934 | _BitScanForward (&r, x); |
|
|
935 | return (int)r; |
|
|
936 | #else |
|
|
937 | int r = 0; |
|
|
938 | |
|
|
939 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
940 | |
|
|
941 | #if ECB_branchless_on_i386 |
|
|
942 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
943 | r += !!(x & 0xcccccccc) << 1; |
|
|
944 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
945 | r += !!(x & 0xff00ff00) << 3; |
|
|
946 | r += !!(x & 0xffff0000) << 4; |
|
|
947 | #else |
|
|
948 | if (x & 0xaaaaaaaa) r += 1; |
|
|
949 | if (x & 0xcccccccc) r += 2; |
|
|
950 | if (x & 0xf0f0f0f0) r += 4; |
|
|
951 | if (x & 0xff00ff00) r += 8; |
|
|
952 | if (x & 0xffff0000) r += 16; |
|
|
953 | #endif |
|
|
954 | |
|
|
955 | return r; |
|
|
956 | #endif |
|
|
957 | } |
|
|
958 | |
|
|
959 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
960 | ecb_function_ ecb_const int |
|
|
961 | ecb_ctz64 (uint64_t x) |
|
|
962 | { |
|
|
963 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
964 | unsigned long r; |
|
|
965 | _BitScanForward64 (&r, x); |
|
|
966 | return (int)r; |
|
|
967 | #else |
|
|
968 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
969 | return ecb_ctz32 (x >> shift) + shift; |
|
|
970 | #endif |
|
|
971 | } |
|
|
972 | |
|
|
973 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
974 | ecb_function_ ecb_const int |
|
|
975 | ecb_popcount32 (uint32_t x) |
|
|
976 | { |
|
|
977 | x -= (x >> 1) & 0x55555555; |
|
|
978 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
979 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
980 | x *= 0x01010101; |
|
|
981 | |
|
|
982 | return x >> 24; |
|
|
983 | } |
|
|
984 | |
|
|
985 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
986 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
987 | { |
|
|
988 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
989 | unsigned long r; |
|
|
990 | _BitScanReverse (&r, x); |
|
|
991 | return (int)r; |
|
|
992 | #else |
|
|
993 | int r = 0; |
|
|
994 | |
|
|
995 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
996 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
997 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
998 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
999 | if (x >> 1) { r += 1; } |
|
|
1000 | |
|
|
1001 | return r; |
|
|
1002 | #endif |
|
|
1003 | } |
|
|
1004 | |
|
|
1005 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1006 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1007 | { |
|
|
1008 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1009 | unsigned long r; |
|
|
1010 | _BitScanReverse64 (&r, x); |
|
|
1011 | return (int)r; |
|
|
1012 | #else |
|
|
1013 | int r = 0; |
|
|
1014 | |
|
|
1015 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1016 | |
|
|
1017 | return r + ecb_ld32 (x); |
|
|
1018 | #endif |
|
|
1019 | } |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1023 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1024 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1025 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1026 | |
|
|
1027 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1028 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1029 | { |
|
|
1030 | return ( (x * 0x0802U & 0x22110U) |
|
|
1031 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1035 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1036 | { |
|
|
1037 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1038 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1039 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1040 | x = ( x >> 8 ) | ( x << 8); |
|
|
1041 | |
|
|
1042 | return x; |
|
|
1043 | } |
|
|
1044 | |
|
|
1045 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1046 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1047 | { |
|
|
1048 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1049 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1050 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1051 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1052 | x = ( x >> 16 ) | ( x << 16); |
|
|
1053 | |
|
|
1054 | return x; |
|
|
1055 | } |
|
|
1056 | |
|
|
1057 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1058 | /* so for this version we are lazy */ |
|
|
1059 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1060 | ecb_function_ ecb_const int |
|
|
1061 | ecb_popcount64 (uint64_t x) |
|
|
1062 | { |
|
|
1063 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1067 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1068 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1069 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1070 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1071 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1072 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1073 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1074 | |
|
|
1075 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1076 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1077 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1078 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1079 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1080 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1081 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1082 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1083 | |
|
|
1084 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1085 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1086 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1087 | #else |
|
|
1088 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1089 | #endif |
|
|
1090 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1091 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1092 | #elif _MSC_VER |
|
|
1093 | #include <stdlib.h> |
|
|
1094 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1095 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1096 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1097 | #else |
|
|
1098 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1099 | ecb_function_ ecb_const uint16_t |
|
|
1100 | ecb_bswap16 (uint16_t x) |
|
|
1101 | { |
|
|
1102 | return ecb_rotl16 (x, 8); |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1106 | ecb_function_ ecb_const uint32_t |
|
|
1107 | ecb_bswap32 (uint32_t x) |
|
|
1108 | { |
|
|
1109 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1113 | ecb_function_ ecb_const uint64_t |
|
|
1114 | ecb_bswap64 (uint64_t x) |
|
|
1115 | { |
|
|
1116 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1117 | } |
|
|
1118 | #endif |
|
|
1119 | |
|
|
1120 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1121 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1122 | #else |
|
|
1123 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1124 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1125 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1126 | #endif |
|
|
1127 | |
|
|
1128 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1129 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1130 | |
|
|
1131 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1132 | ecb_inline ecb_const uint32_t |
|
|
1133 | ecb_byteorder_helper (void) |
|
|
1134 | { |
|
|
1135 | /* the union code still generates code under pressure in gcc, */ |
|
|
1136 | /* but less than using pointers, and always seems to */ |
|
|
1137 | /* successfully return a constant. */ |
|
|
1138 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1139 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1140 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1141 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1142 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1143 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1144 | return 0x44332211; |
|
|
1145 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1146 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1147 | #define ECB_BIG_ENDIAN 1 |
|
|
1148 | return 0x11223344; |
|
|
1149 | #else |
|
|
1150 | union |
|
|
1151 | { |
|
|
1152 | uint8_t c[4]; |
|
|
1153 | uint32_t u; |
|
|
1154 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1155 | return u.u; |
|
|
1156 | #endif |
|
|
1157 | } |
|
|
1158 | |
|
|
1159 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1160 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1161 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1162 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1163 | |
|
|
1164 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1165 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1166 | #else |
|
|
1167 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1168 | #endif |
|
|
1169 | |
|
|
1170 | #if ECB_CPP |
|
|
1171 | template<typename T> |
|
|
1172 | static inline T ecb_div_rd (T val, T div) |
|
|
1173 | { |
|
|
1174 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1175 | } |
|
|
1176 | template<typename T> |
|
|
1177 | static inline T ecb_div_ru (T val, T div) |
|
|
1178 | { |
|
|
1179 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1180 | } |
|
|
1181 | #else |
|
|
1182 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1183 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1184 | #endif |
|
|
1185 | |
|
|
1186 | #if ecb_cplusplus_does_not_suck |
|
|
1187 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1188 | template<typename T, int N> |
|
|
1189 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1190 | { |
|
|
1191 | return N; |
|
|
1192 | } |
|
|
1193 | #else |
|
|
1194 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1195 | #endif |
|
|
1196 | |
|
|
1197 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1198 | ecb_function_ ecb_const uint32_t |
|
|
1199 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1200 | { |
|
|
1201 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1202 | int e = (x >> 10) & 0x001f; |
|
|
1203 | unsigned int m = x & 0x03ff; |
|
|
1204 | |
|
|
1205 | if (ecb_expect_false (e == 31)) |
|
|
1206 | /* infinity or NaN */ |
|
|
1207 | e = 255 - (127 - 15); |
|
|
1208 | else if (ecb_expect_false (!e)) |
|
|
1209 | { |
|
|
1210 | if (ecb_expect_true (!m)) |
|
|
1211 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1212 | e = 0 - (127 - 15); |
|
|
1213 | else |
|
|
1214 | { |
|
|
1215 | /* subnormal, renormalise */ |
|
|
1216 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1217 | |
|
|
1218 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1219 | e -= s - 1; |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1224 | e += 127 - 15; |
|
|
1225 | |
|
|
1226 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1230 | ecb_function_ ecb_const uint16_t |
|
|
1231 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1232 | { |
|
|
1233 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1234 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1235 | unsigned int m = x & 0x007fffff; |
|
|
1236 | |
|
|
1237 | x &= 0x7fffffff; |
|
|
1238 | |
|
|
1239 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1240 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1241 | { |
|
|
1242 | /* mantissa round-to-even */ |
|
|
1243 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1244 | |
|
|
1245 | /* handle overflow */ |
|
|
1246 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1247 | { |
|
|
1248 | m >>= 1; |
|
|
1249 | e += 1; |
|
|
1250 | } |
|
|
1251 | |
|
|
1252 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | /* handle large numbers and infinity */ |
|
|
1256 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1257 | return s | 0x7c00; |
|
|
1258 | |
|
|
1259 | /* handle zero, subnormals and small numbers */ |
|
|
1260 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1261 | { |
|
|
1262 | /* zero */ |
|
|
1263 | if (ecb_expect_true (!x)) |
|
|
1264 | return s; |
|
|
1265 | |
|
|
1266 | /* handle subnormals */ |
|
|
1267 | |
|
|
1268 | /* too small, will be zero */ |
|
|
1269 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1270 | return s; |
|
|
1271 | |
|
|
1272 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1273 | |
|
|
1274 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1275 | { |
|
|
1276 | unsigned int bits = 14 - e; |
|
|
1277 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1278 | unsigned int even = (m >> bits) & 1; |
|
|
1279 | |
|
|
1280 | /* if this overflows, we will end up with a normalised number */ |
|
|
1281 | m = (m + half + even) >> bits; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | return s | m; |
|
|
1285 | } |
|
|
1286 | |
|
|
1287 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1288 | m >>= 13; |
|
|
1289 | |
|
|
1290 | return s | 0x7c00 | m | !m; |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | /*******************************************************************************/ |
|
|
1294 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1295 | |
|
|
1296 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1297 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1298 | #if 0 \ |
|
|
1299 | || __i386 || __i386__ \ |
|
|
1300 | || ECB_GCC_AMD64 \ |
|
|
1301 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1302 | || defined __s390__ || defined __s390x__ \ |
|
|
1303 | || defined __mips__ \ |
|
|
1304 | || defined __alpha__ \ |
|
|
1305 | || defined __hppa__ \ |
|
|
1306 | || defined __ia64__ \ |
|
|
1307 | || defined __m68k__ \ |
|
|
1308 | || defined __m88k__ \ |
|
|
1309 | || defined __sh__ \ |
|
|
1310 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1311 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1312 | || defined __aarch64__ |
|
|
1313 | #define ECB_STDFP 1 |
|
|
1314 | #include <string.h> /* for memcpy */ |
|
|
1315 | #else |
|
|
1316 | #define ECB_STDFP 0 |
|
|
1317 | #endif |
|
|
1318 | |
|
|
1319 | #ifndef ECB_NO_LIBM |
|
|
1320 | |
|
|
1321 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1322 | |
|
|
1323 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1324 | #ifdef INFINITY |
|
|
1325 | #define ECB_INFINITY INFINITY |
|
|
1326 | #else |
|
|
1327 | #define ECB_INFINITY HUGE_VAL |
|
|
1328 | #endif |
|
|
1329 | |
|
|
1330 | #ifdef NAN |
|
|
1331 | #define ECB_NAN NAN |
|
|
1332 | #else |
|
|
1333 | #define ECB_NAN ECB_INFINITY |
|
|
1334 | #endif |
|
|
1335 | |
|
|
1336 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1337 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1338 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1339 | #else |
|
|
1340 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1341 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1342 | #endif |
|
|
1343 | |
|
|
1344 | /* convert a float to ieee single/binary32 */ |
|
|
1345 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1346 | ecb_function_ ecb_const uint32_t |
|
|
1347 | ecb_float_to_binary32 (float x) |
|
|
1348 | { |
|
|
1349 | uint32_t r; |
|
|
1350 | |
|
|
1351 | #if ECB_STDFP |
|
|
1352 | memcpy (&r, &x, 4); |
|
|
1353 | #else |
|
|
1354 | /* slow emulation, works for anything but -0 */ |
|
|
1355 | uint32_t m; |
|
|
1356 | int e; |
|
|
1357 | |
|
|
1358 | if (x == 0e0f ) return 0x00000000U; |
|
|
1359 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1360 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1361 | if (x != x ) return 0x7fbfffffU; |
|
|
1362 | |
|
|
1363 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1364 | |
|
|
1365 | r = m & 0x80000000U; |
|
|
1366 | |
|
|
1367 | if (r) |
|
|
1368 | m = -m; |
|
|
1369 | |
|
|
1370 | if (e <= -126) |
|
|
1371 | { |
|
|
1372 | m &= 0xffffffU; |
|
|
1373 | m >>= (-125 - e); |
|
|
1374 | e = -126; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | r |= (e + 126) << 23; |
|
|
1378 | r |= m & 0x7fffffU; |
|
|
1379 | #endif |
|
|
1380 | |
|
|
1381 | return r; |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | /* converts an ieee single/binary32 to a float */ |
|
|
1385 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1386 | ecb_function_ ecb_const float |
|
|
1387 | ecb_binary32_to_float (uint32_t x) |
|
|
1388 | { |
|
|
1389 | float r; |
|
|
1390 | |
|
|
1391 | #if ECB_STDFP |
|
|
1392 | memcpy (&r, &x, 4); |
|
|
1393 | #else |
|
|
1394 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1395 | int neg = x >> 31; |
|
|
1396 | int e = (x >> 23) & 0xffU; |
|
|
1397 | |
|
|
1398 | x &= 0x7fffffU; |
|
|
1399 | |
|
|
1400 | if (e) |
|
|
1401 | x |= 0x800000U; |
|
|
1402 | else |
|
|
1403 | e = 1; |
|
|
1404 | |
|
|
1405 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1406 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1407 | |
|
|
1408 | r = neg ? -r : r; |
|
|
1409 | #endif |
|
|
1410 | |
|
|
1411 | return r; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | /* convert a double to ieee double/binary64 */ |
|
|
1415 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1416 | ecb_function_ ecb_const uint64_t |
|
|
1417 | ecb_double_to_binary64 (double x) |
|
|
1418 | { |
|
|
1419 | uint64_t r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 8); |
|
|
1423 | #else |
|
|
1424 | /* slow emulation, works for anything but -0 */ |
|
|
1425 | uint64_t m; |
|
|
1426 | int e; |
|
|
1427 | |
|
|
1428 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1429 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1430 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1431 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1432 | |
|
|
1433 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1434 | |
|
|
1435 | r = m & 0x8000000000000000;; |
|
|
1436 | |
|
|
1437 | if (r) |
|
|
1438 | m = -m; |
|
|
1439 | |
|
|
1440 | if (e <= -1022) |
|
|
1441 | { |
|
|
1442 | m &= 0x1fffffffffffffU; |
|
|
1443 | m >>= (-1021 - e); |
|
|
1444 | e = -1022; |
|
|
1445 | } |
|
|
1446 | |
|
|
1447 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1448 | r |= m & 0xfffffffffffffU; |
|
|
1449 | #endif |
|
|
1450 | |
|
|
1451 | return r; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | /* converts an ieee double/binary64 to a double */ |
|
|
1455 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1456 | ecb_function_ ecb_const double |
|
|
1457 | ecb_binary64_to_double (uint64_t x) |
|
|
1458 | { |
|
|
1459 | double r; |
|
|
1460 | |
|
|
1461 | #if ECB_STDFP |
|
|
1462 | memcpy (&r, &x, 8); |
|
|
1463 | #else |
|
|
1464 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1465 | int neg = x >> 63; |
|
|
1466 | int e = (x >> 52) & 0x7ffU; |
|
|
1467 | |
|
|
1468 | x &= 0xfffffffffffffU; |
|
|
1469 | |
|
|
1470 | if (e) |
|
|
1471 | x |= 0x10000000000000U; |
|
|
1472 | else |
|
|
1473 | e = 1; |
|
|
1474 | |
|
|
1475 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1476 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1477 | |
|
|
1478 | r = neg ? -r : r; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* convert a float to ieee half/binary16 */ |
|
|
1485 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1486 | ecb_function_ ecb_const uint16_t |
|
|
1487 | ecb_float_to_binary16 (float x) |
|
|
1488 | { |
|
|
1489 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | /* convert an ieee half/binary16 to float */ |
|
|
1493 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1494 | ecb_function_ ecb_const float |
|
|
1495 | ecb_binary16_to_float (uint16_t x) |
|
|
1496 | { |
|
|
1497 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | #endif |
|
|
1501 | |
|
|
1502 | #endif |
|
|
1503 | |
|
|
1504 | /* ECB.H END */ |
|
|
1505 | |
|
|
1506 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1507 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1508 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1509 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1510 | * libev, in which cases the memory fences become nops. |
|
|
1511 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1512 | * which will then provide the memory fences. |
|
|
1513 | */ |
|
|
1514 | # error "memory fences not defined for your architecture, please report" |
|
|
1515 | #endif |
|
|
1516 | |
|
|
1517 | #ifndef ECB_MEMORY_FENCE |
|
|
1518 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1519 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1520 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1521 | #endif |
|
|
1522 | |
|
|
1523 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1524 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1525 | #define noinline ecb_noinline |
|
|
1526 | |
490 | #define inline_size static inline |
1527 | #define inline_size ecb_inline |
491 | |
1528 | |
492 | #if EV_FEATURE_CODE |
1529 | #if EV_FEATURE_CODE |
493 | # define inline_speed static inline |
1530 | # define inline_speed ecb_inline |
494 | #else |
1531 | #else |
495 | # define inline_speed static noinline |
1532 | # define inline_speed noinline static |
496 | #endif |
1533 | #endif |
497 | |
1534 | |
498 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1535 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
499 | |
1536 | |
500 | #if EV_MINPRI == EV_MAXPRI |
1537 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
537 | # include "ev_win32.c" |
1574 | # include "ev_win32.c" |
538 | #endif |
1575 | #endif |
539 | |
1576 | |
540 | /*****************************************************************************/ |
1577 | /*****************************************************************************/ |
541 | |
1578 | |
|
|
1579 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1580 | |
|
|
1581 | #if EV_USE_FLOOR |
|
|
1582 | # include <math.h> |
|
|
1583 | # define ev_floor(v) floor (v) |
|
|
1584 | #else |
|
|
1585 | |
|
|
1586 | #include <float.h> |
|
|
1587 | |
|
|
1588 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1589 | noinline |
|
|
1590 | static ev_tstamp |
|
|
1591 | ev_floor (ev_tstamp v) |
|
|
1592 | { |
|
|
1593 | /* the choice of shift factor is not terribly important */ |
|
|
1594 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1595 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1596 | #else |
|
|
1597 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1598 | #endif |
|
|
1599 | |
|
|
1600 | /* argument too large for an unsigned long? */ |
|
|
1601 | if (expect_false (v >= shift)) |
|
|
1602 | { |
|
|
1603 | ev_tstamp f; |
|
|
1604 | |
|
|
1605 | if (v == v - 1.) |
|
|
1606 | return v; /* very large number */ |
|
|
1607 | |
|
|
1608 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1609 | return f + ev_floor (v - f); |
|
|
1610 | } |
|
|
1611 | |
|
|
1612 | /* special treatment for negative args? */ |
|
|
1613 | if (expect_false (v < 0.)) |
|
|
1614 | { |
|
|
1615 | ev_tstamp f = -ev_floor (-v); |
|
|
1616 | |
|
|
1617 | return f - (f == v ? 0 : 1); |
|
|
1618 | } |
|
|
1619 | |
|
|
1620 | /* fits into an unsigned long */ |
|
|
1621 | return (unsigned long)v; |
|
|
1622 | } |
|
|
1623 | |
|
|
1624 | #endif |
|
|
1625 | |
|
|
1626 | /*****************************************************************************/ |
|
|
1627 | |
|
|
1628 | #ifdef __linux |
|
|
1629 | # include <sys/utsname.h> |
|
|
1630 | #endif |
|
|
1631 | |
|
|
1632 | noinline ecb_cold |
|
|
1633 | static unsigned int |
|
|
1634 | ev_linux_version (void) |
|
|
1635 | { |
|
|
1636 | #ifdef __linux |
|
|
1637 | unsigned int v = 0; |
|
|
1638 | struct utsname buf; |
|
|
1639 | int i; |
|
|
1640 | char *p = buf.release; |
|
|
1641 | |
|
|
1642 | if (uname (&buf)) |
|
|
1643 | return 0; |
|
|
1644 | |
|
|
1645 | for (i = 3+1; --i; ) |
|
|
1646 | { |
|
|
1647 | unsigned int c = 0; |
|
|
1648 | |
|
|
1649 | for (;;) |
|
|
1650 | { |
|
|
1651 | if (*p >= '0' && *p <= '9') |
|
|
1652 | c = c * 10 + *p++ - '0'; |
|
|
1653 | else |
|
|
1654 | { |
|
|
1655 | p += *p == '.'; |
|
|
1656 | break; |
|
|
1657 | } |
|
|
1658 | } |
|
|
1659 | |
|
|
1660 | v = (v << 8) | c; |
|
|
1661 | } |
|
|
1662 | |
|
|
1663 | return v; |
|
|
1664 | #else |
|
|
1665 | return 0; |
|
|
1666 | #endif |
|
|
1667 | } |
|
|
1668 | |
|
|
1669 | /*****************************************************************************/ |
|
|
1670 | |
542 | #if EV_AVOID_STDIO |
1671 | #if EV_AVOID_STDIO |
543 | static void noinline |
1672 | noinline ecb_cold |
|
|
1673 | static void |
544 | ev_printerr (const char *msg) |
1674 | ev_printerr (const char *msg) |
545 | { |
1675 | { |
546 | write (STDERR_FILENO, msg, strlen (msg)); |
1676 | write (STDERR_FILENO, msg, strlen (msg)); |
547 | } |
1677 | } |
548 | #endif |
1678 | #endif |
549 | |
1679 | |
550 | static void (*syserr_cb)(const char *msg); |
1680 | static void (*syserr_cb)(const char *msg) EV_THROW; |
551 | |
1681 | |
|
|
1682 | ecb_cold |
552 | void |
1683 | void |
553 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1684 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
554 | { |
1685 | { |
555 | syserr_cb = cb; |
1686 | syserr_cb = cb; |
556 | } |
1687 | } |
557 | |
1688 | |
558 | static void noinline |
1689 | noinline ecb_cold |
|
|
1690 | static void |
559 | ev_syserr (const char *msg) |
1691 | ev_syserr (const char *msg) |
560 | { |
1692 | { |
561 | if (!msg) |
1693 | if (!msg) |
562 | msg = "(libev) system error"; |
1694 | msg = "(libev) system error"; |
563 | |
1695 | |
564 | if (syserr_cb) |
1696 | if (syserr_cb) |
565 | syserr_cb (msg); |
1697 | syserr_cb (msg); |
566 | else |
1698 | else |
567 | { |
1699 | { |
568 | #if EV_AVOID_STDIO |
1700 | #if EV_AVOID_STDIO |
569 | const char *err = strerror (errno); |
|
|
570 | |
|
|
571 | ev_printerr (msg); |
1701 | ev_printerr (msg); |
572 | ev_printerr (": "); |
1702 | ev_printerr (": "); |
573 | ev_printerr (err); |
1703 | ev_printerr (strerror (errno)); |
574 | ev_printerr ("\n"); |
1704 | ev_printerr ("\n"); |
575 | #else |
1705 | #else |
576 | perror (msg); |
1706 | perror (msg); |
577 | #endif |
1707 | #endif |
578 | abort (); |
1708 | abort (); |
579 | } |
1709 | } |
580 | } |
1710 | } |
581 | |
1711 | |
582 | static void * |
1712 | static void * |
583 | ev_realloc_emul (void *ptr, long size) |
1713 | ev_realloc_emul (void *ptr, long size) EV_THROW |
584 | { |
1714 | { |
585 | #if __GLIBC__ |
|
|
586 | return realloc (ptr, size); |
|
|
587 | #else |
|
|
588 | /* some systems, notably openbsd and darwin, fail to properly |
1715 | /* some systems, notably openbsd and darwin, fail to properly |
589 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1716 | * implement realloc (x, 0) (as required by both ansi c-89 and |
590 | * the single unix specification, so work around them here. |
1717 | * the single unix specification, so work around them here. |
|
|
1718 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1719 | * despite documenting it otherwise. |
591 | */ |
1720 | */ |
592 | |
1721 | |
593 | if (size) |
1722 | if (size) |
594 | return realloc (ptr, size); |
1723 | return realloc (ptr, size); |
595 | |
1724 | |
596 | free (ptr); |
1725 | free (ptr); |
597 | return 0; |
1726 | return 0; |
598 | #endif |
|
|
599 | } |
1727 | } |
600 | |
1728 | |
601 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1729 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
602 | |
1730 | |
|
|
1731 | ecb_cold |
603 | void |
1732 | void |
604 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1733 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
605 | { |
1734 | { |
606 | alloc = cb; |
1735 | alloc = cb; |
607 | } |
1736 | } |
608 | |
1737 | |
609 | inline_speed void * |
1738 | inline_speed void * |
… | |
… | |
612 | ptr = alloc (ptr, size); |
1741 | ptr = alloc (ptr, size); |
613 | |
1742 | |
614 | if (!ptr && size) |
1743 | if (!ptr && size) |
615 | { |
1744 | { |
616 | #if EV_AVOID_STDIO |
1745 | #if EV_AVOID_STDIO |
617 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
1746 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
618 | #else |
1747 | #else |
619 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1748 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
620 | #endif |
1749 | #endif |
621 | abort (); |
1750 | abort (); |
622 | } |
1751 | } |
623 | |
1752 | |
624 | return ptr; |
1753 | return ptr; |
… | |
… | |
641 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1770 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
642 | unsigned char unused; |
1771 | unsigned char unused; |
643 | #if EV_USE_EPOLL |
1772 | #if EV_USE_EPOLL |
644 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1773 | unsigned int egen; /* generation counter to counter epoll bugs */ |
645 | #endif |
1774 | #endif |
646 | #if EV_SELECT_IS_WINSOCKET |
1775 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
647 | SOCKET handle; |
1776 | SOCKET handle; |
|
|
1777 | #endif |
|
|
1778 | #if EV_USE_IOCP |
|
|
1779 | OVERLAPPED or, ow; |
648 | #endif |
1780 | #endif |
649 | } ANFD; |
1781 | } ANFD; |
650 | |
1782 | |
651 | /* stores the pending event set for a given watcher */ |
1783 | /* stores the pending event set for a given watcher */ |
652 | typedef struct |
1784 | typedef struct |
… | |
… | |
694 | #undef VAR |
1826 | #undef VAR |
695 | }; |
1827 | }; |
696 | #include "ev_wrap.h" |
1828 | #include "ev_wrap.h" |
697 | |
1829 | |
698 | static struct ev_loop default_loop_struct; |
1830 | static struct ev_loop default_loop_struct; |
699 | struct ev_loop *ev_default_loop_ptr; |
1831 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
700 | |
1832 | |
701 | #else |
1833 | #else |
702 | |
1834 | |
703 | ev_tstamp ev_rt_now; |
1835 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
704 | #define VAR(name,decl) static decl; |
1836 | #define VAR(name,decl) static decl; |
705 | #include "ev_vars.h" |
1837 | #include "ev_vars.h" |
706 | #undef VAR |
1838 | #undef VAR |
707 | |
1839 | |
708 | static int ev_default_loop_ptr; |
1840 | static int ev_default_loop_ptr; |
… | |
… | |
717 | # define EV_RELEASE_CB (void)0 |
1849 | # define EV_RELEASE_CB (void)0 |
718 | # define EV_ACQUIRE_CB (void)0 |
1850 | # define EV_ACQUIRE_CB (void)0 |
719 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1851 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
720 | #endif |
1852 | #endif |
721 | |
1853 | |
722 | #define EVUNLOOP_RECURSE 0x80 |
1854 | #define EVBREAK_RECURSE 0x80 |
723 | |
1855 | |
724 | /*****************************************************************************/ |
1856 | /*****************************************************************************/ |
725 | |
1857 | |
726 | #ifndef EV_HAVE_EV_TIME |
1858 | #ifndef EV_HAVE_EV_TIME |
727 | ev_tstamp |
1859 | ev_tstamp |
728 | ev_time (void) |
1860 | ev_time (void) EV_THROW |
729 | { |
1861 | { |
730 | #if EV_USE_REALTIME |
1862 | #if EV_USE_REALTIME |
731 | if (expect_true (have_realtime)) |
1863 | if (expect_true (have_realtime)) |
732 | { |
1864 | { |
733 | struct timespec ts; |
1865 | struct timespec ts; |
… | |
… | |
757 | return ev_time (); |
1889 | return ev_time (); |
758 | } |
1890 | } |
759 | |
1891 | |
760 | #if EV_MULTIPLICITY |
1892 | #if EV_MULTIPLICITY |
761 | ev_tstamp |
1893 | ev_tstamp |
762 | ev_now (EV_P) |
1894 | ev_now (EV_P) EV_THROW |
763 | { |
1895 | { |
764 | return ev_rt_now; |
1896 | return ev_rt_now; |
765 | } |
1897 | } |
766 | #endif |
1898 | #endif |
767 | |
1899 | |
768 | void |
1900 | void |
769 | ev_sleep (ev_tstamp delay) |
1901 | ev_sleep (ev_tstamp delay) EV_THROW |
770 | { |
1902 | { |
771 | if (delay > 0.) |
1903 | if (delay > 0.) |
772 | { |
1904 | { |
773 | #if EV_USE_NANOSLEEP |
1905 | #if EV_USE_NANOSLEEP |
774 | struct timespec ts; |
1906 | struct timespec ts; |
775 | |
1907 | |
776 | EV_TS_SET (ts, delay); |
1908 | EV_TS_SET (ts, delay); |
777 | nanosleep (&ts, 0); |
1909 | nanosleep (&ts, 0); |
778 | #elif defined(_WIN32) |
1910 | #elif defined _WIN32 |
|
|
1911 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1912 | /* compared to select (µs) or nanosleep (ns) */ |
779 | Sleep ((unsigned long)(delay * 1e3)); |
1913 | Sleep ((unsigned long)(delay * 1e3)); |
780 | #else |
1914 | #else |
781 | struct timeval tv; |
1915 | struct timeval tv; |
782 | |
1916 | |
783 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1917 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
802 | |
1936 | |
803 | do |
1937 | do |
804 | ncur <<= 1; |
1938 | ncur <<= 1; |
805 | while (cnt > ncur); |
1939 | while (cnt > ncur); |
806 | |
1940 | |
807 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1941 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
808 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1942 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
809 | { |
1943 | { |
810 | ncur *= elem; |
1944 | ncur *= elem; |
811 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1945 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
812 | ncur = ncur - sizeof (void *) * 4; |
1946 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
814 | } |
1948 | } |
815 | |
1949 | |
816 | return ncur; |
1950 | return ncur; |
817 | } |
1951 | } |
818 | |
1952 | |
819 | static noinline void * |
1953 | noinline ecb_cold |
|
|
1954 | static void * |
820 | array_realloc (int elem, void *base, int *cur, int cnt) |
1955 | array_realloc (int elem, void *base, int *cur, int cnt) |
821 | { |
1956 | { |
822 | *cur = array_nextsize (elem, *cur, cnt); |
1957 | *cur = array_nextsize (elem, *cur, cnt); |
823 | return ev_realloc (base, elem * *cur); |
1958 | return ev_realloc (base, elem * *cur); |
824 | } |
1959 | } |
… | |
… | |
827 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1962 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
828 | |
1963 | |
829 | #define array_needsize(type,base,cur,cnt,init) \ |
1964 | #define array_needsize(type,base,cur,cnt,init) \ |
830 | if (expect_false ((cnt) > (cur))) \ |
1965 | if (expect_false ((cnt) > (cur))) \ |
831 | { \ |
1966 | { \ |
832 | int ocur_ = (cur); \ |
1967 | ecb_unused int ocur_ = (cur); \ |
833 | (base) = (type *)array_realloc \ |
1968 | (base) = (type *)array_realloc \ |
834 | (sizeof (type), (base), &(cur), (cnt)); \ |
1969 | (sizeof (type), (base), &(cur), (cnt)); \ |
835 | init ((base) + (ocur_), (cur) - ocur_); \ |
1970 | init ((base) + (ocur_), (cur) - ocur_); \ |
836 | } |
1971 | } |
837 | |
1972 | |
… | |
… | |
849 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1984 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
850 | |
1985 | |
851 | /*****************************************************************************/ |
1986 | /*****************************************************************************/ |
852 | |
1987 | |
853 | /* dummy callback for pending events */ |
1988 | /* dummy callback for pending events */ |
854 | static void noinline |
1989 | noinline |
|
|
1990 | static void |
855 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1991 | pendingcb (EV_P_ ev_prepare *w, int revents) |
856 | { |
1992 | { |
857 | } |
1993 | } |
858 | |
1994 | |
859 | void noinline |
1995 | noinline |
|
|
1996 | void |
860 | ev_feed_event (EV_P_ void *w, int revents) |
1997 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
861 | { |
1998 | { |
862 | W w_ = (W)w; |
1999 | W w_ = (W)w; |
863 | int pri = ABSPRI (w_); |
2000 | int pri = ABSPRI (w_); |
864 | |
2001 | |
865 | if (expect_false (w_->pending)) |
2002 | if (expect_false (w_->pending)) |
… | |
… | |
869 | w_->pending = ++pendingcnt [pri]; |
2006 | w_->pending = ++pendingcnt [pri]; |
870 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2007 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
871 | pendings [pri][w_->pending - 1].w = w_; |
2008 | pendings [pri][w_->pending - 1].w = w_; |
872 | pendings [pri][w_->pending - 1].events = revents; |
2009 | pendings [pri][w_->pending - 1].events = revents; |
873 | } |
2010 | } |
|
|
2011 | |
|
|
2012 | pendingpri = NUMPRI - 1; |
874 | } |
2013 | } |
875 | |
2014 | |
876 | inline_speed void |
2015 | inline_speed void |
877 | feed_reverse (EV_P_ W w) |
2016 | feed_reverse (EV_P_ W w) |
878 | { |
2017 | { |
… | |
… | |
924 | if (expect_true (!anfd->reify)) |
2063 | if (expect_true (!anfd->reify)) |
925 | fd_event_nocheck (EV_A_ fd, revents); |
2064 | fd_event_nocheck (EV_A_ fd, revents); |
926 | } |
2065 | } |
927 | |
2066 | |
928 | void |
2067 | void |
929 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2068 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
930 | { |
2069 | { |
931 | if (fd >= 0 && fd < anfdmax) |
2070 | if (fd >= 0 && fd < anfdmax) |
932 | fd_event_nocheck (EV_A_ fd, revents); |
2071 | fd_event_nocheck (EV_A_ fd, revents); |
933 | } |
2072 | } |
934 | |
2073 | |
… | |
… | |
937 | inline_size void |
2076 | inline_size void |
938 | fd_reify (EV_P) |
2077 | fd_reify (EV_P) |
939 | { |
2078 | { |
940 | int i; |
2079 | int i; |
941 | |
2080 | |
|
|
2081 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2082 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2083 | { |
|
|
2084 | int fd = fdchanges [i]; |
|
|
2085 | ANFD *anfd = anfds + fd; |
|
|
2086 | |
|
|
2087 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2088 | { |
|
|
2089 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2090 | |
|
|
2091 | if (handle != anfd->handle) |
|
|
2092 | { |
|
|
2093 | unsigned long arg; |
|
|
2094 | |
|
|
2095 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2096 | |
|
|
2097 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2098 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2099 | anfd->events = 0; |
|
|
2100 | anfd->handle = handle; |
|
|
2101 | } |
|
|
2102 | } |
|
|
2103 | } |
|
|
2104 | #endif |
|
|
2105 | |
942 | for (i = 0; i < fdchangecnt; ++i) |
2106 | for (i = 0; i < fdchangecnt; ++i) |
943 | { |
2107 | { |
944 | int fd = fdchanges [i]; |
2108 | int fd = fdchanges [i]; |
945 | ANFD *anfd = anfds + fd; |
2109 | ANFD *anfd = anfds + fd; |
946 | ev_io *w; |
2110 | ev_io *w; |
… | |
… | |
948 | unsigned char o_events = anfd->events; |
2112 | unsigned char o_events = anfd->events; |
949 | unsigned char o_reify = anfd->reify; |
2113 | unsigned char o_reify = anfd->reify; |
950 | |
2114 | |
951 | anfd->reify = 0; |
2115 | anfd->reify = 0; |
952 | |
2116 | |
953 | #if EV_SELECT_IS_WINSOCKET |
|
|
954 | if (o_reify & EV__IOFDSET) |
|
|
955 | { |
|
|
956 | unsigned long arg; |
|
|
957 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
958 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
959 | } |
|
|
960 | #endif |
|
|
961 | |
|
|
962 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2117 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
963 | { |
2118 | { |
964 | anfd->events = 0; |
2119 | anfd->events = 0; |
965 | |
2120 | |
966 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2121 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
967 | anfd->events |= (unsigned char)w->events; |
2122 | anfd->events |= (unsigned char)w->events; |
968 | |
2123 | |
969 | if (o_events !=anfd-> events) |
2124 | if (o_events != anfd->events) |
970 | o_reify = EV__IOFDSET; /* actually |= */ |
2125 | o_reify = EV__IOFDSET; /* actually |= */ |
971 | } |
2126 | } |
972 | |
2127 | |
973 | if (o_reify & EV__IOFDSET) |
2128 | if (o_reify & EV__IOFDSET) |
974 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2129 | backend_modify (EV_A_ fd, o_events, anfd->events); |
… | |
… | |
976 | |
2131 | |
977 | fdchangecnt = 0; |
2132 | fdchangecnt = 0; |
978 | } |
2133 | } |
979 | |
2134 | |
980 | /* something about the given fd changed */ |
2135 | /* something about the given fd changed */ |
981 | inline_size void |
2136 | inline_size |
|
|
2137 | void |
982 | fd_change (EV_P_ int fd, int flags) |
2138 | fd_change (EV_P_ int fd, int flags) |
983 | { |
2139 | { |
984 | unsigned char reify = anfds [fd].reify; |
2140 | unsigned char reify = anfds [fd].reify; |
985 | anfds [fd].reify |= flags; |
2141 | anfds [fd].reify |= flags; |
986 | |
2142 | |
… | |
… | |
991 | fdchanges [fdchangecnt - 1] = fd; |
2147 | fdchanges [fdchangecnt - 1] = fd; |
992 | } |
2148 | } |
993 | } |
2149 | } |
994 | |
2150 | |
995 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2151 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
996 | inline_speed void |
2152 | inline_speed ecb_cold void |
997 | fd_kill (EV_P_ int fd) |
2153 | fd_kill (EV_P_ int fd) |
998 | { |
2154 | { |
999 | ev_io *w; |
2155 | ev_io *w; |
1000 | |
2156 | |
1001 | while ((w = (ev_io *)anfds [fd].head)) |
2157 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1004 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2160 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1005 | } |
2161 | } |
1006 | } |
2162 | } |
1007 | |
2163 | |
1008 | /* check whether the given fd is actually valid, for error recovery */ |
2164 | /* check whether the given fd is actually valid, for error recovery */ |
1009 | inline_size int |
2165 | inline_size ecb_cold int |
1010 | fd_valid (int fd) |
2166 | fd_valid (int fd) |
1011 | { |
2167 | { |
1012 | #ifdef _WIN32 |
2168 | #ifdef _WIN32 |
1013 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2169 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1014 | #else |
2170 | #else |
1015 | return fcntl (fd, F_GETFD) != -1; |
2171 | return fcntl (fd, F_GETFD) != -1; |
1016 | #endif |
2172 | #endif |
1017 | } |
2173 | } |
1018 | |
2174 | |
1019 | /* called on EBADF to verify fds */ |
2175 | /* called on EBADF to verify fds */ |
1020 | static void noinline |
2176 | noinline ecb_cold |
|
|
2177 | static void |
1021 | fd_ebadf (EV_P) |
2178 | fd_ebadf (EV_P) |
1022 | { |
2179 | { |
1023 | int fd; |
2180 | int fd; |
1024 | |
2181 | |
1025 | for (fd = 0; fd < anfdmax; ++fd) |
2182 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1027 | if (!fd_valid (fd) && errno == EBADF) |
2184 | if (!fd_valid (fd) && errno == EBADF) |
1028 | fd_kill (EV_A_ fd); |
2185 | fd_kill (EV_A_ fd); |
1029 | } |
2186 | } |
1030 | |
2187 | |
1031 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2188 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1032 | static void noinline |
2189 | noinline ecb_cold |
|
|
2190 | static void |
1033 | fd_enomem (EV_P) |
2191 | fd_enomem (EV_P) |
1034 | { |
2192 | { |
1035 | int fd; |
2193 | int fd; |
1036 | |
2194 | |
1037 | for (fd = anfdmax; fd--; ) |
2195 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1041 | break; |
2199 | break; |
1042 | } |
2200 | } |
1043 | } |
2201 | } |
1044 | |
2202 | |
1045 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2203 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1046 | static void noinline |
2204 | noinline |
|
|
2205 | static void |
1047 | fd_rearm_all (EV_P) |
2206 | fd_rearm_all (EV_P) |
1048 | { |
2207 | { |
1049 | int fd; |
2208 | int fd; |
1050 | |
2209 | |
1051 | for (fd = 0; fd < anfdmax; ++fd) |
2210 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1232 | |
2391 | |
1233 | /*****************************************************************************/ |
2392 | /*****************************************************************************/ |
1234 | |
2393 | |
1235 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2394 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1236 | |
2395 | |
1237 | static void noinline |
2396 | noinline ecb_cold |
|
|
2397 | static void |
1238 | evpipe_init (EV_P) |
2398 | evpipe_init (EV_P) |
1239 | { |
2399 | { |
1240 | if (!ev_is_active (&pipe_w)) |
2400 | if (!ev_is_active (&pipe_w)) |
1241 | { |
2401 | { |
|
|
2402 | int fds [2]; |
|
|
2403 | |
1242 | # if EV_USE_EVENTFD |
2404 | # if EV_USE_EVENTFD |
|
|
2405 | fds [0] = -1; |
1243 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2406 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1244 | if (evfd < 0 && errno == EINVAL) |
2407 | if (fds [1] < 0 && errno == EINVAL) |
1245 | evfd = eventfd (0, 0); |
2408 | fds [1] = eventfd (0, 0); |
1246 | |
2409 | |
1247 | if (evfd >= 0) |
2410 | if (fds [1] < 0) |
|
|
2411 | # endif |
1248 | { |
2412 | { |
|
|
2413 | while (pipe (fds)) |
|
|
2414 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2415 | |
|
|
2416 | fd_intern (fds [0]); |
|
|
2417 | } |
|
|
2418 | |
1249 | evpipe [0] = -1; |
2419 | evpipe [0] = fds [0]; |
1250 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2420 | |
1251 | ev_io_set (&pipe_w, evfd, EV_READ); |
2421 | if (evpipe [1] < 0) |
|
|
2422 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2423 | else |
|
|
2424 | { |
|
|
2425 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2426 | /* so that evpipe_write can always rely on its value. */ |
|
|
2427 | /* this branch does not do anything sensible on windows, */ |
|
|
2428 | /* so must not be executed on windows */ |
|
|
2429 | |
|
|
2430 | dup2 (fds [1], evpipe [1]); |
|
|
2431 | close (fds [1]); |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | fd_intern (evpipe [1]); |
|
|
2435 | |
|
|
2436 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2437 | ev_io_start (EV_A_ &pipe_w); |
|
|
2438 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2439 | } |
|
|
2440 | } |
|
|
2441 | |
|
|
2442 | inline_speed void |
|
|
2443 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2444 | { |
|
|
2445 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2446 | |
|
|
2447 | if (expect_true (*flag)) |
|
|
2448 | return; |
|
|
2449 | |
|
|
2450 | *flag = 1; |
|
|
2451 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2452 | |
|
|
2453 | pipe_write_skipped = 1; |
|
|
2454 | |
|
|
2455 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2456 | |
|
|
2457 | if (pipe_write_wanted) |
|
|
2458 | { |
|
|
2459 | int old_errno; |
|
|
2460 | |
|
|
2461 | pipe_write_skipped = 0; |
|
|
2462 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2463 | |
|
|
2464 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2465 | |
|
|
2466 | #if EV_USE_EVENTFD |
|
|
2467 | if (evpipe [0] < 0) |
|
|
2468 | { |
|
|
2469 | uint64_t counter = 1; |
|
|
2470 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1252 | } |
2471 | } |
1253 | else |
2472 | else |
1254 | # endif |
2473 | #endif |
1255 | { |
2474 | { |
1256 | while (pipe (evpipe)) |
2475 | #ifdef _WIN32 |
1257 | ev_syserr ("(libev) error creating signal/async pipe"); |
2476 | WSABUF buf; |
1258 | |
2477 | DWORD sent; |
1259 | fd_intern (evpipe [0]); |
2478 | buf.buf = &buf; |
1260 | fd_intern (evpipe [1]); |
2479 | buf.len = 1; |
1261 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2480 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2481 | #else |
|
|
2482 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2483 | #endif |
1262 | } |
2484 | } |
1263 | |
|
|
1264 | ev_io_start (EV_A_ &pipe_w); |
|
|
1265 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1266 | } |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | inline_size void |
|
|
1270 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1271 | { |
|
|
1272 | if (!*flag) |
|
|
1273 | { |
|
|
1274 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1275 | char dummy; |
|
|
1276 | |
|
|
1277 | *flag = 1; |
|
|
1278 | |
|
|
1279 | #if EV_USE_EVENTFD |
|
|
1280 | if (evfd >= 0) |
|
|
1281 | { |
|
|
1282 | uint64_t counter = 1; |
|
|
1283 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1284 | } |
|
|
1285 | else |
|
|
1286 | #endif |
|
|
1287 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1288 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1289 | /* so when you think this write should be a send instead, please find out */ |
|
|
1290 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1291 | /* tell me. thank you. */ |
|
|
1292 | write (evpipe [1], &dummy, 1); |
|
|
1293 | |
2485 | |
1294 | errno = old_errno; |
2486 | errno = old_errno; |
1295 | } |
2487 | } |
1296 | } |
2488 | } |
1297 | |
2489 | |
… | |
… | |
1300 | static void |
2492 | static void |
1301 | pipecb (EV_P_ ev_io *iow, int revents) |
2493 | pipecb (EV_P_ ev_io *iow, int revents) |
1302 | { |
2494 | { |
1303 | int i; |
2495 | int i; |
1304 | |
2496 | |
|
|
2497 | if (revents & EV_READ) |
|
|
2498 | { |
1305 | #if EV_USE_EVENTFD |
2499 | #if EV_USE_EVENTFD |
1306 | if (evfd >= 0) |
2500 | if (evpipe [0] < 0) |
1307 | { |
2501 | { |
1308 | uint64_t counter; |
2502 | uint64_t counter; |
1309 | read (evfd, &counter, sizeof (uint64_t)); |
2503 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1310 | } |
2504 | } |
1311 | else |
2505 | else |
1312 | #endif |
2506 | #endif |
1313 | { |
2507 | { |
1314 | char dummy; |
2508 | char dummy[4]; |
1315 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2509 | #ifdef _WIN32 |
|
|
2510 | WSABUF buf; |
|
|
2511 | DWORD recvd; |
|
|
2512 | DWORD flags = 0; |
|
|
2513 | buf.buf = dummy; |
|
|
2514 | buf.len = sizeof (dummy); |
|
|
2515 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2516 | #else |
1316 | read (evpipe [0], &dummy, 1); |
2517 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2518 | #endif |
|
|
2519 | } |
1317 | } |
2520 | } |
1318 | |
2521 | |
|
|
2522 | pipe_write_skipped = 0; |
|
|
2523 | |
|
|
2524 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2525 | |
|
|
2526 | #if EV_SIGNAL_ENABLE |
1319 | if (sig_pending) |
2527 | if (sig_pending) |
1320 | { |
2528 | { |
1321 | sig_pending = 0; |
2529 | sig_pending = 0; |
|
|
2530 | |
|
|
2531 | ECB_MEMORY_FENCE; |
1322 | |
2532 | |
1323 | for (i = EV_NSIG - 1; i--; ) |
2533 | for (i = EV_NSIG - 1; i--; ) |
1324 | if (expect_false (signals [i].pending)) |
2534 | if (expect_false (signals [i].pending)) |
1325 | ev_feed_signal_event (EV_A_ i + 1); |
2535 | ev_feed_signal_event (EV_A_ i + 1); |
1326 | } |
2536 | } |
|
|
2537 | #endif |
1327 | |
2538 | |
1328 | #if EV_ASYNC_ENABLE |
2539 | #if EV_ASYNC_ENABLE |
1329 | if (async_pending) |
2540 | if (async_pending) |
1330 | { |
2541 | { |
1331 | async_pending = 0; |
2542 | async_pending = 0; |
|
|
2543 | |
|
|
2544 | ECB_MEMORY_FENCE; |
1332 | |
2545 | |
1333 | for (i = asynccnt; i--; ) |
2546 | for (i = asynccnt; i--; ) |
1334 | if (asyncs [i]->sent) |
2547 | if (asyncs [i]->sent) |
1335 | { |
2548 | { |
1336 | asyncs [i]->sent = 0; |
2549 | asyncs [i]->sent = 0; |
|
|
2550 | ECB_MEMORY_FENCE_RELEASE; |
1337 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2551 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1338 | } |
2552 | } |
1339 | } |
2553 | } |
1340 | #endif |
2554 | #endif |
1341 | } |
2555 | } |
1342 | |
2556 | |
1343 | /*****************************************************************************/ |
2557 | /*****************************************************************************/ |
1344 | |
2558 | |
|
|
2559 | void |
|
|
2560 | ev_feed_signal (int signum) EV_THROW |
|
|
2561 | { |
|
|
2562 | #if EV_MULTIPLICITY |
|
|
2563 | EV_P; |
|
|
2564 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2565 | EV_A = signals [signum - 1].loop; |
|
|
2566 | |
|
|
2567 | if (!EV_A) |
|
|
2568 | return; |
|
|
2569 | #endif |
|
|
2570 | |
|
|
2571 | signals [signum - 1].pending = 1; |
|
|
2572 | evpipe_write (EV_A_ &sig_pending); |
|
|
2573 | } |
|
|
2574 | |
1345 | static void |
2575 | static void |
1346 | ev_sighandler (int signum) |
2576 | ev_sighandler (int signum) |
1347 | { |
2577 | { |
1348 | #if EV_MULTIPLICITY |
|
|
1349 | EV_P = signals [signum - 1].loop; |
|
|
1350 | #endif |
|
|
1351 | |
|
|
1352 | #ifdef _WIN32 |
2578 | #ifdef _WIN32 |
1353 | signal (signum, ev_sighandler); |
2579 | signal (signum, ev_sighandler); |
1354 | #endif |
2580 | #endif |
1355 | |
2581 | |
1356 | signals [signum - 1].pending = 1; |
2582 | ev_feed_signal (signum); |
1357 | evpipe_write (EV_A_ &sig_pending); |
|
|
1358 | } |
2583 | } |
1359 | |
2584 | |
1360 | void noinline |
2585 | noinline |
|
|
2586 | void |
1361 | ev_feed_signal_event (EV_P_ int signum) |
2587 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1362 | { |
2588 | { |
1363 | WL w; |
2589 | WL w; |
1364 | |
2590 | |
1365 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2591 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1366 | return; |
2592 | return; |
1367 | |
2593 | |
1368 | --signum; |
2594 | --signum; |
1369 | |
2595 | |
1370 | #if EV_MULTIPLICITY |
2596 | #if EV_MULTIPLICITY |
… | |
… | |
1374 | if (expect_false (signals [signum].loop != EV_A)) |
2600 | if (expect_false (signals [signum].loop != EV_A)) |
1375 | return; |
2601 | return; |
1376 | #endif |
2602 | #endif |
1377 | |
2603 | |
1378 | signals [signum].pending = 0; |
2604 | signals [signum].pending = 0; |
|
|
2605 | ECB_MEMORY_FENCE_RELEASE; |
1379 | |
2606 | |
1380 | for (w = signals [signum].head; w; w = w->next) |
2607 | for (w = signals [signum].head; w; w = w->next) |
1381 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2608 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1382 | } |
2609 | } |
1383 | |
2610 | |
… | |
… | |
1462 | |
2689 | |
1463 | #endif |
2690 | #endif |
1464 | |
2691 | |
1465 | /*****************************************************************************/ |
2692 | /*****************************************************************************/ |
1466 | |
2693 | |
|
|
2694 | #if EV_USE_IOCP |
|
|
2695 | # include "ev_iocp.c" |
|
|
2696 | #endif |
1467 | #if EV_USE_PORT |
2697 | #if EV_USE_PORT |
1468 | # include "ev_port.c" |
2698 | # include "ev_port.c" |
1469 | #endif |
2699 | #endif |
1470 | #if EV_USE_KQUEUE |
2700 | #if EV_USE_KQUEUE |
1471 | # include "ev_kqueue.c" |
2701 | # include "ev_kqueue.c" |
… | |
… | |
1478 | #endif |
2708 | #endif |
1479 | #if EV_USE_SELECT |
2709 | #if EV_USE_SELECT |
1480 | # include "ev_select.c" |
2710 | # include "ev_select.c" |
1481 | #endif |
2711 | #endif |
1482 | |
2712 | |
1483 | int |
2713 | ecb_cold int |
1484 | ev_version_major (void) |
2714 | ev_version_major (void) EV_THROW |
1485 | { |
2715 | { |
1486 | return EV_VERSION_MAJOR; |
2716 | return EV_VERSION_MAJOR; |
1487 | } |
2717 | } |
1488 | |
2718 | |
1489 | int |
2719 | ecb_cold int |
1490 | ev_version_minor (void) |
2720 | ev_version_minor (void) EV_THROW |
1491 | { |
2721 | { |
1492 | return EV_VERSION_MINOR; |
2722 | return EV_VERSION_MINOR; |
1493 | } |
2723 | } |
1494 | |
2724 | |
1495 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2725 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1496 | int inline_size |
2726 | inline_size ecb_cold int |
1497 | enable_secure (void) |
2727 | enable_secure (void) |
1498 | { |
2728 | { |
1499 | #ifdef _WIN32 |
2729 | #ifdef _WIN32 |
1500 | return 0; |
2730 | return 0; |
1501 | #else |
2731 | #else |
1502 | return getuid () != geteuid () |
2732 | return getuid () != geteuid () |
1503 | || getgid () != getegid (); |
2733 | || getgid () != getegid (); |
1504 | #endif |
2734 | #endif |
1505 | } |
2735 | } |
1506 | |
2736 | |
|
|
2737 | ecb_cold |
1507 | unsigned int |
2738 | unsigned int |
1508 | ev_supported_backends (void) |
2739 | ev_supported_backends (void) EV_THROW |
1509 | { |
2740 | { |
1510 | unsigned int flags = 0; |
2741 | unsigned int flags = 0; |
1511 | |
2742 | |
1512 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2743 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1513 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2744 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1516 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2747 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1517 | |
2748 | |
1518 | return flags; |
2749 | return flags; |
1519 | } |
2750 | } |
1520 | |
2751 | |
|
|
2752 | ecb_cold |
1521 | unsigned int |
2753 | unsigned int |
1522 | ev_recommended_backends (void) |
2754 | ev_recommended_backends (void) EV_THROW |
1523 | { |
2755 | { |
1524 | unsigned int flags = ev_supported_backends (); |
2756 | unsigned int flags = ev_supported_backends (); |
1525 | |
2757 | |
1526 | #ifndef __NetBSD__ |
2758 | #ifndef __NetBSD__ |
1527 | /* kqueue is borked on everything but netbsd apparently */ |
2759 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1538 | #endif |
2770 | #endif |
1539 | |
2771 | |
1540 | return flags; |
2772 | return flags; |
1541 | } |
2773 | } |
1542 | |
2774 | |
|
|
2775 | ecb_cold |
1543 | unsigned int |
2776 | unsigned int |
1544 | ev_embeddable_backends (void) |
2777 | ev_embeddable_backends (void) EV_THROW |
1545 | { |
2778 | { |
1546 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2779 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1547 | |
2780 | |
1548 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2781 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1549 | /* please fix it and tell me how to detect the fix */ |
2782 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1550 | flags &= ~EVBACKEND_EPOLL; |
2783 | flags &= ~EVBACKEND_EPOLL; |
1551 | |
2784 | |
1552 | return flags; |
2785 | return flags; |
1553 | } |
2786 | } |
1554 | |
2787 | |
1555 | unsigned int |
2788 | unsigned int |
1556 | ev_backend (EV_P) |
2789 | ev_backend (EV_P) EV_THROW |
1557 | { |
2790 | { |
1558 | return backend; |
2791 | return backend; |
1559 | } |
2792 | } |
1560 | |
2793 | |
1561 | #if EV_FEATURE_API |
2794 | #if EV_FEATURE_API |
1562 | unsigned int |
2795 | unsigned int |
1563 | ev_iteration (EV_P) |
2796 | ev_iteration (EV_P) EV_THROW |
1564 | { |
2797 | { |
1565 | return loop_count; |
2798 | return loop_count; |
1566 | } |
2799 | } |
1567 | |
2800 | |
1568 | unsigned int |
2801 | unsigned int |
1569 | ev_depth (EV_P) |
2802 | ev_depth (EV_P) EV_THROW |
1570 | { |
2803 | { |
1571 | return loop_depth; |
2804 | return loop_depth; |
1572 | } |
2805 | } |
1573 | |
2806 | |
1574 | void |
2807 | void |
1575 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2808 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1576 | { |
2809 | { |
1577 | io_blocktime = interval; |
2810 | io_blocktime = interval; |
1578 | } |
2811 | } |
1579 | |
2812 | |
1580 | void |
2813 | void |
1581 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2814 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1582 | { |
2815 | { |
1583 | timeout_blocktime = interval; |
2816 | timeout_blocktime = interval; |
1584 | } |
2817 | } |
1585 | |
2818 | |
1586 | void |
2819 | void |
1587 | ev_set_userdata (EV_P_ void *data) |
2820 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1588 | { |
2821 | { |
1589 | userdata = data; |
2822 | userdata = data; |
1590 | } |
2823 | } |
1591 | |
2824 | |
1592 | void * |
2825 | void * |
1593 | ev_userdata (EV_P) |
2826 | ev_userdata (EV_P) EV_THROW |
1594 | { |
2827 | { |
1595 | return userdata; |
2828 | return userdata; |
1596 | } |
2829 | } |
1597 | |
2830 | |
|
|
2831 | void |
1598 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2832 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
1599 | { |
2833 | { |
1600 | invoke_cb = invoke_pending_cb; |
2834 | invoke_cb = invoke_pending_cb; |
1601 | } |
2835 | } |
1602 | |
2836 | |
|
|
2837 | void |
1603 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2838 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1604 | { |
2839 | { |
1605 | release_cb = release; |
2840 | release_cb = release; |
1606 | acquire_cb = acquire; |
2841 | acquire_cb = acquire; |
1607 | } |
2842 | } |
1608 | #endif |
2843 | #endif |
1609 | |
2844 | |
1610 | /* initialise a loop structure, must be zero-initialised */ |
2845 | /* initialise a loop structure, must be zero-initialised */ |
1611 | static void noinline |
2846 | noinline ecb_cold |
|
|
2847 | static void |
1612 | loop_init (EV_P_ unsigned int flags) |
2848 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1613 | { |
2849 | { |
1614 | if (!backend) |
2850 | if (!backend) |
1615 | { |
2851 | { |
|
|
2852 | origflags = flags; |
|
|
2853 | |
1616 | #if EV_USE_REALTIME |
2854 | #if EV_USE_REALTIME |
1617 | if (!have_realtime) |
2855 | if (!have_realtime) |
1618 | { |
2856 | { |
1619 | struct timespec ts; |
2857 | struct timespec ts; |
1620 | |
2858 | |
… | |
… | |
1642 | if (!(flags & EVFLAG_NOENV) |
2880 | if (!(flags & EVFLAG_NOENV) |
1643 | && !enable_secure () |
2881 | && !enable_secure () |
1644 | && getenv ("LIBEV_FLAGS")) |
2882 | && getenv ("LIBEV_FLAGS")) |
1645 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2883 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1646 | |
2884 | |
1647 | ev_rt_now = ev_time (); |
2885 | ev_rt_now = ev_time (); |
1648 | mn_now = get_clock (); |
2886 | mn_now = get_clock (); |
1649 | now_floor = mn_now; |
2887 | now_floor = mn_now; |
1650 | rtmn_diff = ev_rt_now - mn_now; |
2888 | rtmn_diff = ev_rt_now - mn_now; |
1651 | #if EV_FEATURE_API |
2889 | #if EV_FEATURE_API |
1652 | invoke_cb = ev_invoke_pending; |
2890 | invoke_cb = ev_invoke_pending; |
1653 | #endif |
2891 | #endif |
1654 | |
2892 | |
1655 | io_blocktime = 0.; |
2893 | io_blocktime = 0.; |
1656 | timeout_blocktime = 0.; |
2894 | timeout_blocktime = 0.; |
1657 | backend = 0; |
2895 | backend = 0; |
1658 | backend_fd = -1; |
2896 | backend_fd = -1; |
1659 | sig_pending = 0; |
2897 | sig_pending = 0; |
1660 | #if EV_ASYNC_ENABLE |
2898 | #if EV_ASYNC_ENABLE |
1661 | async_pending = 0; |
2899 | async_pending = 0; |
1662 | #endif |
2900 | #endif |
|
|
2901 | pipe_write_skipped = 0; |
|
|
2902 | pipe_write_wanted = 0; |
|
|
2903 | evpipe [0] = -1; |
|
|
2904 | evpipe [1] = -1; |
1663 | #if EV_USE_INOTIFY |
2905 | #if EV_USE_INOTIFY |
1664 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2906 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1665 | #endif |
2907 | #endif |
1666 | #if EV_USE_SIGNALFD |
2908 | #if EV_USE_SIGNALFD |
1667 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2909 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1668 | #endif |
2910 | #endif |
1669 | |
2911 | |
1670 | if (!(flags & 0x0000ffffU)) |
2912 | if (!(flags & EVBACKEND_MASK)) |
1671 | flags |= ev_recommended_backends (); |
2913 | flags |= ev_recommended_backends (); |
1672 | |
2914 | |
|
|
2915 | #if EV_USE_IOCP |
|
|
2916 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2917 | #endif |
1673 | #if EV_USE_PORT |
2918 | #if EV_USE_PORT |
1674 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2919 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1675 | #endif |
2920 | #endif |
1676 | #if EV_USE_KQUEUE |
2921 | #if EV_USE_KQUEUE |
1677 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2922 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1694 | #endif |
2939 | #endif |
1695 | } |
2940 | } |
1696 | } |
2941 | } |
1697 | |
2942 | |
1698 | /* free up a loop structure */ |
2943 | /* free up a loop structure */ |
1699 | static void noinline |
2944 | ecb_cold |
|
|
2945 | void |
1700 | loop_destroy (EV_P) |
2946 | ev_loop_destroy (EV_P) |
1701 | { |
2947 | { |
1702 | int i; |
2948 | int i; |
|
|
2949 | |
|
|
2950 | #if EV_MULTIPLICITY |
|
|
2951 | /* mimic free (0) */ |
|
|
2952 | if (!EV_A) |
|
|
2953 | return; |
|
|
2954 | #endif |
|
|
2955 | |
|
|
2956 | #if EV_CLEANUP_ENABLE |
|
|
2957 | /* queue cleanup watchers (and execute them) */ |
|
|
2958 | if (expect_false (cleanupcnt)) |
|
|
2959 | { |
|
|
2960 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2961 | EV_INVOKE_PENDING; |
|
|
2962 | } |
|
|
2963 | #endif |
|
|
2964 | |
|
|
2965 | #if EV_CHILD_ENABLE |
|
|
2966 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2967 | { |
|
|
2968 | ev_ref (EV_A); /* child watcher */ |
|
|
2969 | ev_signal_stop (EV_A_ &childev); |
|
|
2970 | } |
|
|
2971 | #endif |
1703 | |
2972 | |
1704 | if (ev_is_active (&pipe_w)) |
2973 | if (ev_is_active (&pipe_w)) |
1705 | { |
2974 | { |
1706 | /*ev_ref (EV_A);*/ |
2975 | /*ev_ref (EV_A);*/ |
1707 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2976 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1708 | |
2977 | |
1709 | #if EV_USE_EVENTFD |
|
|
1710 | if (evfd >= 0) |
|
|
1711 | close (evfd); |
|
|
1712 | #endif |
|
|
1713 | |
|
|
1714 | if (evpipe [0] >= 0) |
|
|
1715 | { |
|
|
1716 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2978 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1717 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2979 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1718 | } |
|
|
1719 | } |
2980 | } |
1720 | |
2981 | |
1721 | #if EV_USE_SIGNALFD |
2982 | #if EV_USE_SIGNALFD |
1722 | if (ev_is_active (&sigfd_w)) |
2983 | if (ev_is_active (&sigfd_w)) |
1723 | close (sigfd); |
2984 | close (sigfd); |
… | |
… | |
1729 | #endif |
2990 | #endif |
1730 | |
2991 | |
1731 | if (backend_fd >= 0) |
2992 | if (backend_fd >= 0) |
1732 | close (backend_fd); |
2993 | close (backend_fd); |
1733 | |
2994 | |
|
|
2995 | #if EV_USE_IOCP |
|
|
2996 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2997 | #endif |
1734 | #if EV_USE_PORT |
2998 | #if EV_USE_PORT |
1735 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2999 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1736 | #endif |
3000 | #endif |
1737 | #if EV_USE_KQUEUE |
3001 | #if EV_USE_KQUEUE |
1738 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3002 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1765 | array_free (periodic, EMPTY); |
3029 | array_free (periodic, EMPTY); |
1766 | #endif |
3030 | #endif |
1767 | #if EV_FORK_ENABLE |
3031 | #if EV_FORK_ENABLE |
1768 | array_free (fork, EMPTY); |
3032 | array_free (fork, EMPTY); |
1769 | #endif |
3033 | #endif |
|
|
3034 | #if EV_CLEANUP_ENABLE |
|
|
3035 | array_free (cleanup, EMPTY); |
|
|
3036 | #endif |
1770 | array_free (prepare, EMPTY); |
3037 | array_free (prepare, EMPTY); |
1771 | array_free (check, EMPTY); |
3038 | array_free (check, EMPTY); |
1772 | #if EV_ASYNC_ENABLE |
3039 | #if EV_ASYNC_ENABLE |
1773 | array_free (async, EMPTY); |
3040 | array_free (async, EMPTY); |
1774 | #endif |
3041 | #endif |
1775 | |
3042 | |
1776 | backend = 0; |
3043 | backend = 0; |
|
|
3044 | |
|
|
3045 | #if EV_MULTIPLICITY |
|
|
3046 | if (ev_is_default_loop (EV_A)) |
|
|
3047 | #endif |
|
|
3048 | ev_default_loop_ptr = 0; |
|
|
3049 | #if EV_MULTIPLICITY |
|
|
3050 | else |
|
|
3051 | ev_free (EV_A); |
|
|
3052 | #endif |
1777 | } |
3053 | } |
1778 | |
3054 | |
1779 | #if EV_USE_INOTIFY |
3055 | #if EV_USE_INOTIFY |
1780 | inline_size void infy_fork (EV_P); |
3056 | inline_size void infy_fork (EV_P); |
1781 | #endif |
3057 | #endif |
… | |
… | |
1794 | #endif |
3070 | #endif |
1795 | #if EV_USE_INOTIFY |
3071 | #if EV_USE_INOTIFY |
1796 | infy_fork (EV_A); |
3072 | infy_fork (EV_A); |
1797 | #endif |
3073 | #endif |
1798 | |
3074 | |
|
|
3075 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1799 | if (ev_is_active (&pipe_w)) |
3076 | if (ev_is_active (&pipe_w) && postfork != 2) |
1800 | { |
3077 | { |
1801 | /* this "locks" the handlers against writing to the pipe */ |
3078 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1802 | /* while we modify the fd vars */ |
|
|
1803 | sig_pending = 1; |
|
|
1804 | #if EV_ASYNC_ENABLE |
|
|
1805 | async_pending = 1; |
|
|
1806 | #endif |
|
|
1807 | |
3079 | |
1808 | ev_ref (EV_A); |
3080 | ev_ref (EV_A); |
1809 | ev_io_stop (EV_A_ &pipe_w); |
3081 | ev_io_stop (EV_A_ &pipe_w); |
1810 | |
3082 | |
1811 | #if EV_USE_EVENTFD |
|
|
1812 | if (evfd >= 0) |
|
|
1813 | close (evfd); |
|
|
1814 | #endif |
|
|
1815 | |
|
|
1816 | if (evpipe [0] >= 0) |
3083 | if (evpipe [0] >= 0) |
1817 | { |
|
|
1818 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3084 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1819 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1820 | } |
|
|
1821 | |
3085 | |
1822 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1823 | evpipe_init (EV_A); |
3086 | evpipe_init (EV_A); |
1824 | /* now iterate over everything, in case we missed something */ |
3087 | /* iterate over everything, in case we missed something before */ |
1825 | pipecb (EV_A_ &pipe_w, EV_READ); |
3088 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1826 | #endif |
|
|
1827 | } |
3089 | } |
|
|
3090 | #endif |
1828 | |
3091 | |
1829 | postfork = 0; |
3092 | postfork = 0; |
1830 | } |
3093 | } |
1831 | |
3094 | |
1832 | #if EV_MULTIPLICITY |
3095 | #if EV_MULTIPLICITY |
1833 | |
3096 | |
|
|
3097 | ecb_cold |
1834 | struct ev_loop * |
3098 | struct ev_loop * |
1835 | ev_loop_new (unsigned int flags) |
3099 | ev_loop_new (unsigned int flags) EV_THROW |
1836 | { |
3100 | { |
1837 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3101 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1838 | |
3102 | |
1839 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3103 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1840 | loop_init (EV_A_ flags); |
3104 | loop_init (EV_A_ flags); |
1841 | |
3105 | |
1842 | if (ev_backend (EV_A)) |
3106 | if (ev_backend (EV_A)) |
1843 | return EV_A; |
3107 | return EV_A; |
1844 | |
3108 | |
|
|
3109 | ev_free (EV_A); |
1845 | return 0; |
3110 | return 0; |
1846 | } |
3111 | } |
1847 | |
3112 | |
1848 | void |
|
|
1849 | ev_loop_destroy (EV_P) |
|
|
1850 | { |
|
|
1851 | loop_destroy (EV_A); |
|
|
1852 | ev_free (loop); |
|
|
1853 | } |
|
|
1854 | |
|
|
1855 | void |
|
|
1856 | ev_loop_fork (EV_P) |
|
|
1857 | { |
|
|
1858 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1859 | } |
|
|
1860 | #endif /* multiplicity */ |
3113 | #endif /* multiplicity */ |
1861 | |
3114 | |
1862 | #if EV_VERIFY |
3115 | #if EV_VERIFY |
1863 | static void noinline |
3116 | noinline ecb_cold |
|
|
3117 | static void |
1864 | verify_watcher (EV_P_ W w) |
3118 | verify_watcher (EV_P_ W w) |
1865 | { |
3119 | { |
1866 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3120 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1867 | |
3121 | |
1868 | if (w->pending) |
3122 | if (w->pending) |
1869 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3123 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1870 | } |
3124 | } |
1871 | |
3125 | |
1872 | static void noinline |
3126 | noinline ecb_cold |
|
|
3127 | static void |
1873 | verify_heap (EV_P_ ANHE *heap, int N) |
3128 | verify_heap (EV_P_ ANHE *heap, int N) |
1874 | { |
3129 | { |
1875 | int i; |
3130 | int i; |
1876 | |
3131 | |
1877 | for (i = HEAP0; i < N + HEAP0; ++i) |
3132 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1882 | |
3137 | |
1883 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3138 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1884 | } |
3139 | } |
1885 | } |
3140 | } |
1886 | |
3141 | |
1887 | static void noinline |
3142 | noinline ecb_cold |
|
|
3143 | static void |
1888 | array_verify (EV_P_ W *ws, int cnt) |
3144 | array_verify (EV_P_ W *ws, int cnt) |
1889 | { |
3145 | { |
1890 | while (cnt--) |
3146 | while (cnt--) |
1891 | { |
3147 | { |
1892 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3148 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1894 | } |
3150 | } |
1895 | } |
3151 | } |
1896 | #endif |
3152 | #endif |
1897 | |
3153 | |
1898 | #if EV_FEATURE_API |
3154 | #if EV_FEATURE_API |
1899 | void |
3155 | void ecb_cold |
1900 | ev_verify (EV_P) |
3156 | ev_verify (EV_P) EV_THROW |
1901 | { |
3157 | { |
1902 | #if EV_VERIFY |
3158 | #if EV_VERIFY |
1903 | int i; |
3159 | int i; |
1904 | WL w; |
3160 | WL w, w2; |
1905 | |
3161 | |
1906 | assert (activecnt >= -1); |
3162 | assert (activecnt >= -1); |
1907 | |
3163 | |
1908 | assert (fdchangemax >= fdchangecnt); |
3164 | assert (fdchangemax >= fdchangecnt); |
1909 | for (i = 0; i < fdchangecnt; ++i) |
3165 | for (i = 0; i < fdchangecnt; ++i) |
1910 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3166 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1911 | |
3167 | |
1912 | assert (anfdmax >= 0); |
3168 | assert (anfdmax >= 0); |
1913 | for (i = 0; i < anfdmax; ++i) |
3169 | for (i = 0; i < anfdmax; ++i) |
|
|
3170 | { |
|
|
3171 | int j = 0; |
|
|
3172 | |
1914 | for (w = anfds [i].head; w; w = w->next) |
3173 | for (w = w2 = anfds [i].head; w; w = w->next) |
1915 | { |
3174 | { |
1916 | verify_watcher (EV_A_ (W)w); |
3175 | verify_watcher (EV_A_ (W)w); |
|
|
3176 | |
|
|
3177 | if (j++ & 1) |
|
|
3178 | { |
|
|
3179 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3180 | w2 = w2->next; |
|
|
3181 | } |
|
|
3182 | |
1917 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3183 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1918 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3184 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1919 | } |
3185 | } |
|
|
3186 | } |
1920 | |
3187 | |
1921 | assert (timermax >= timercnt); |
3188 | assert (timermax >= timercnt); |
1922 | verify_heap (EV_A_ timers, timercnt); |
3189 | verify_heap (EV_A_ timers, timercnt); |
1923 | |
3190 | |
1924 | #if EV_PERIODIC_ENABLE |
3191 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1939 | #if EV_FORK_ENABLE |
3206 | #if EV_FORK_ENABLE |
1940 | assert (forkmax >= forkcnt); |
3207 | assert (forkmax >= forkcnt); |
1941 | array_verify (EV_A_ (W *)forks, forkcnt); |
3208 | array_verify (EV_A_ (W *)forks, forkcnt); |
1942 | #endif |
3209 | #endif |
1943 | |
3210 | |
|
|
3211 | #if EV_CLEANUP_ENABLE |
|
|
3212 | assert (cleanupmax >= cleanupcnt); |
|
|
3213 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3214 | #endif |
|
|
3215 | |
1944 | #if EV_ASYNC_ENABLE |
3216 | #if EV_ASYNC_ENABLE |
1945 | assert (asyncmax >= asynccnt); |
3217 | assert (asyncmax >= asynccnt); |
1946 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3218 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1947 | #endif |
3219 | #endif |
1948 | |
3220 | |
… | |
… | |
1965 | #endif |
3237 | #endif |
1966 | } |
3238 | } |
1967 | #endif |
3239 | #endif |
1968 | |
3240 | |
1969 | #if EV_MULTIPLICITY |
3241 | #if EV_MULTIPLICITY |
|
|
3242 | ecb_cold |
1970 | struct ev_loop * |
3243 | struct ev_loop * |
1971 | ev_default_loop_init (unsigned int flags) |
|
|
1972 | #else |
3244 | #else |
1973 | int |
3245 | int |
|
|
3246 | #endif |
1974 | ev_default_loop (unsigned int flags) |
3247 | ev_default_loop (unsigned int flags) EV_THROW |
1975 | #endif |
|
|
1976 | { |
3248 | { |
1977 | if (!ev_default_loop_ptr) |
3249 | if (!ev_default_loop_ptr) |
1978 | { |
3250 | { |
1979 | #if EV_MULTIPLICITY |
3251 | #if EV_MULTIPLICITY |
1980 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3252 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1999 | |
3271 | |
2000 | return ev_default_loop_ptr; |
3272 | return ev_default_loop_ptr; |
2001 | } |
3273 | } |
2002 | |
3274 | |
2003 | void |
3275 | void |
2004 | ev_default_destroy (void) |
3276 | ev_loop_fork (EV_P) EV_THROW |
2005 | { |
3277 | { |
2006 | #if EV_MULTIPLICITY |
3278 | postfork = 1; |
2007 | EV_P = ev_default_loop_ptr; |
|
|
2008 | #endif |
|
|
2009 | |
|
|
2010 | ev_default_loop_ptr = 0; |
|
|
2011 | |
|
|
2012 | #if EV_CHILD_ENABLE |
|
|
2013 | ev_ref (EV_A); /* child watcher */ |
|
|
2014 | ev_signal_stop (EV_A_ &childev); |
|
|
2015 | #endif |
|
|
2016 | |
|
|
2017 | loop_destroy (EV_A); |
|
|
2018 | } |
|
|
2019 | |
|
|
2020 | void |
|
|
2021 | ev_default_fork (void) |
|
|
2022 | { |
|
|
2023 | #if EV_MULTIPLICITY |
|
|
2024 | EV_P = ev_default_loop_ptr; |
|
|
2025 | #endif |
|
|
2026 | |
|
|
2027 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
2028 | } |
3279 | } |
2029 | |
3280 | |
2030 | /*****************************************************************************/ |
3281 | /*****************************************************************************/ |
2031 | |
3282 | |
2032 | void |
3283 | void |
… | |
… | |
2034 | { |
3285 | { |
2035 | EV_CB_INVOKE ((W)w, revents); |
3286 | EV_CB_INVOKE ((W)w, revents); |
2036 | } |
3287 | } |
2037 | |
3288 | |
2038 | unsigned int |
3289 | unsigned int |
2039 | ev_pending_count (EV_P) |
3290 | ev_pending_count (EV_P) EV_THROW |
2040 | { |
3291 | { |
2041 | int pri; |
3292 | int pri; |
2042 | unsigned int count = 0; |
3293 | unsigned int count = 0; |
2043 | |
3294 | |
2044 | for (pri = NUMPRI; pri--; ) |
3295 | for (pri = NUMPRI; pri--; ) |
2045 | count += pendingcnt [pri]; |
3296 | count += pendingcnt [pri]; |
2046 | |
3297 | |
2047 | return count; |
3298 | return count; |
2048 | } |
3299 | } |
2049 | |
3300 | |
2050 | void noinline |
3301 | noinline |
|
|
3302 | void |
2051 | ev_invoke_pending (EV_P) |
3303 | ev_invoke_pending (EV_P) |
2052 | { |
3304 | { |
2053 | int pri; |
3305 | pendingpri = NUMPRI; |
2054 | |
3306 | |
2055 | for (pri = NUMPRI; pri--; ) |
3307 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3308 | { |
|
|
3309 | --pendingpri; |
|
|
3310 | |
2056 | while (pendingcnt [pri]) |
3311 | while (pendingcnt [pendingpri]) |
2057 | { |
3312 | { |
2058 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3313 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2059 | |
3314 | |
2060 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2061 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2062 | |
|
|
2063 | p->w->pending = 0; |
3315 | p->w->pending = 0; |
2064 | EV_CB_INVOKE (p->w, p->events); |
3316 | EV_CB_INVOKE (p->w, p->events); |
2065 | EV_FREQUENT_CHECK; |
3317 | EV_FREQUENT_CHECK; |
2066 | } |
3318 | } |
|
|
3319 | } |
2067 | } |
3320 | } |
2068 | |
3321 | |
2069 | #if EV_IDLE_ENABLE |
3322 | #if EV_IDLE_ENABLE |
2070 | /* make idle watchers pending. this handles the "call-idle */ |
3323 | /* make idle watchers pending. this handles the "call-idle */ |
2071 | /* only when higher priorities are idle" logic */ |
3324 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2128 | feed_reverse_done (EV_A_ EV_TIMER); |
3381 | feed_reverse_done (EV_A_ EV_TIMER); |
2129 | } |
3382 | } |
2130 | } |
3383 | } |
2131 | |
3384 | |
2132 | #if EV_PERIODIC_ENABLE |
3385 | #if EV_PERIODIC_ENABLE |
|
|
3386 | |
|
|
3387 | noinline |
|
|
3388 | static void |
|
|
3389 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3390 | { |
|
|
3391 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3392 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3393 | |
|
|
3394 | /* the above almost always errs on the low side */ |
|
|
3395 | while (at <= ev_rt_now) |
|
|
3396 | { |
|
|
3397 | ev_tstamp nat = at + w->interval; |
|
|
3398 | |
|
|
3399 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3400 | if (expect_false (nat == at)) |
|
|
3401 | { |
|
|
3402 | at = ev_rt_now; |
|
|
3403 | break; |
|
|
3404 | } |
|
|
3405 | |
|
|
3406 | at = nat; |
|
|
3407 | } |
|
|
3408 | |
|
|
3409 | ev_at (w) = at; |
|
|
3410 | } |
|
|
3411 | |
2133 | /* make periodics pending */ |
3412 | /* make periodics pending */ |
2134 | inline_size void |
3413 | inline_size void |
2135 | periodics_reify (EV_P) |
3414 | periodics_reify (EV_P) |
2136 | { |
3415 | { |
2137 | EV_FREQUENT_CHECK; |
3416 | EV_FREQUENT_CHECK; |
2138 | |
3417 | |
2139 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3418 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2140 | { |
3419 | { |
2141 | int feed_count = 0; |
|
|
2142 | |
|
|
2143 | do |
3420 | do |
2144 | { |
3421 | { |
2145 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3422 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2146 | |
3423 | |
2147 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3424 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2156 | ANHE_at_cache (periodics [HEAP0]); |
3433 | ANHE_at_cache (periodics [HEAP0]); |
2157 | downheap (periodics, periodiccnt, HEAP0); |
3434 | downheap (periodics, periodiccnt, HEAP0); |
2158 | } |
3435 | } |
2159 | else if (w->interval) |
3436 | else if (w->interval) |
2160 | { |
3437 | { |
2161 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3438 | periodic_recalc (EV_A_ w); |
2162 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2163 | /* this might happen because of floating point inexactness */ |
|
|
2164 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2165 | { |
|
|
2166 | ev_at (w) += w->interval; |
|
|
2167 | |
|
|
2168 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2169 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2170 | /* has effectively asked to get triggered more often than possible */ |
|
|
2171 | if (ev_at (w) < ev_rt_now) |
|
|
2172 | ev_at (w) = ev_rt_now; |
|
|
2173 | } |
|
|
2174 | |
|
|
2175 | ANHE_at_cache (periodics [HEAP0]); |
3439 | ANHE_at_cache (periodics [HEAP0]); |
2176 | downheap (periodics, periodiccnt, HEAP0); |
3440 | downheap (periodics, periodiccnt, HEAP0); |
2177 | } |
3441 | } |
2178 | else |
3442 | else |
2179 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3443 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2187 | } |
3451 | } |
2188 | } |
3452 | } |
2189 | |
3453 | |
2190 | /* simply recalculate all periodics */ |
3454 | /* simply recalculate all periodics */ |
2191 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3455 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2192 | static void noinline |
3456 | noinline ecb_cold |
|
|
3457 | static void |
2193 | periodics_reschedule (EV_P) |
3458 | periodics_reschedule (EV_P) |
2194 | { |
3459 | { |
2195 | int i; |
3460 | int i; |
2196 | |
3461 | |
2197 | /* adjust periodics after time jump */ |
3462 | /* adjust periodics after time jump */ |
… | |
… | |
2200 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3465 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2201 | |
3466 | |
2202 | if (w->reschedule_cb) |
3467 | if (w->reschedule_cb) |
2203 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3468 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2204 | else if (w->interval) |
3469 | else if (w->interval) |
2205 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3470 | periodic_recalc (EV_A_ w); |
2206 | |
3471 | |
2207 | ANHE_at_cache (periodics [i]); |
3472 | ANHE_at_cache (periodics [i]); |
2208 | } |
3473 | } |
2209 | |
3474 | |
2210 | reheap (periodics, periodiccnt); |
3475 | reheap (periodics, periodiccnt); |
2211 | } |
3476 | } |
2212 | #endif |
3477 | #endif |
2213 | |
3478 | |
2214 | /* adjust all timers by a given offset */ |
3479 | /* adjust all timers by a given offset */ |
2215 | static void noinline |
3480 | noinline ecb_cold |
|
|
3481 | static void |
2216 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3482 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2217 | { |
3483 | { |
2218 | int i; |
3484 | int i; |
2219 | |
3485 | |
2220 | for (i = 0; i < timercnt; ++i) |
3486 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2257 | * doesn't hurt either as we only do this on time-jumps or |
3523 | * doesn't hurt either as we only do this on time-jumps or |
2258 | * in the unlikely event of having been preempted here. |
3524 | * in the unlikely event of having been preempted here. |
2259 | */ |
3525 | */ |
2260 | for (i = 4; --i; ) |
3526 | for (i = 4; --i; ) |
2261 | { |
3527 | { |
|
|
3528 | ev_tstamp diff; |
2262 | rtmn_diff = ev_rt_now - mn_now; |
3529 | rtmn_diff = ev_rt_now - mn_now; |
2263 | |
3530 | |
|
|
3531 | diff = odiff - rtmn_diff; |
|
|
3532 | |
2264 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3533 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2265 | return; /* all is well */ |
3534 | return; /* all is well */ |
2266 | |
3535 | |
2267 | ev_rt_now = ev_time (); |
3536 | ev_rt_now = ev_time (); |
2268 | mn_now = get_clock (); |
3537 | mn_now = get_clock (); |
2269 | now_floor = mn_now; |
3538 | now_floor = mn_now; |
… | |
… | |
2291 | |
3560 | |
2292 | mn_now = ev_rt_now; |
3561 | mn_now = ev_rt_now; |
2293 | } |
3562 | } |
2294 | } |
3563 | } |
2295 | |
3564 | |
2296 | void |
3565 | int |
2297 | ev_loop (EV_P_ int flags) |
3566 | ev_run (EV_P_ int flags) |
2298 | { |
3567 | { |
2299 | #if EV_FEATURE_API |
3568 | #if EV_FEATURE_API |
2300 | ++loop_depth; |
3569 | ++loop_depth; |
2301 | #endif |
3570 | #endif |
2302 | |
3571 | |
2303 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
3572 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2304 | |
3573 | |
2305 | loop_done = EVUNLOOP_CANCEL; |
3574 | loop_done = EVBREAK_CANCEL; |
2306 | |
3575 | |
2307 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3576 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2308 | |
3577 | |
2309 | do |
3578 | do |
2310 | { |
3579 | { |
… | |
… | |
2353 | /* calculate blocking time */ |
3622 | /* calculate blocking time */ |
2354 | { |
3623 | { |
2355 | ev_tstamp waittime = 0.; |
3624 | ev_tstamp waittime = 0.; |
2356 | ev_tstamp sleeptime = 0.; |
3625 | ev_tstamp sleeptime = 0.; |
2357 | |
3626 | |
|
|
3627 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3628 | ev_tstamp prev_mn_now = mn_now; |
|
|
3629 | |
|
|
3630 | /* update time to cancel out callback processing overhead */ |
|
|
3631 | time_update (EV_A_ 1e100); |
|
|
3632 | |
|
|
3633 | /* from now on, we want a pipe-wake-up */ |
|
|
3634 | pipe_write_wanted = 1; |
|
|
3635 | |
|
|
3636 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3637 | |
2358 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3638 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2359 | { |
3639 | { |
2360 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2361 | ev_tstamp prev_mn_now = mn_now; |
|
|
2362 | |
|
|
2363 | /* update time to cancel out callback processing overhead */ |
|
|
2364 | time_update (EV_A_ 1e100); |
|
|
2365 | |
|
|
2366 | waittime = MAX_BLOCKTIME; |
3640 | waittime = MAX_BLOCKTIME; |
2367 | |
3641 | |
2368 | if (timercnt) |
3642 | if (timercnt) |
2369 | { |
3643 | { |
2370 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3644 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2371 | if (waittime > to) waittime = to; |
3645 | if (waittime > to) waittime = to; |
2372 | } |
3646 | } |
2373 | |
3647 | |
2374 | #if EV_PERIODIC_ENABLE |
3648 | #if EV_PERIODIC_ENABLE |
2375 | if (periodiccnt) |
3649 | if (periodiccnt) |
2376 | { |
3650 | { |
2377 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3651 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2378 | if (waittime > to) waittime = to; |
3652 | if (waittime > to) waittime = to; |
2379 | } |
3653 | } |
2380 | #endif |
3654 | #endif |
2381 | |
3655 | |
2382 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3656 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2383 | if (expect_false (waittime < timeout_blocktime)) |
3657 | if (expect_false (waittime < timeout_blocktime)) |
2384 | waittime = timeout_blocktime; |
3658 | waittime = timeout_blocktime; |
|
|
3659 | |
|
|
3660 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3661 | /* to pass a minimum nonzero value to the backend */ |
|
|
3662 | if (expect_false (waittime < backend_mintime)) |
|
|
3663 | waittime = backend_mintime; |
2385 | |
3664 | |
2386 | /* extra check because io_blocktime is commonly 0 */ |
3665 | /* extra check because io_blocktime is commonly 0 */ |
2387 | if (expect_false (io_blocktime)) |
3666 | if (expect_false (io_blocktime)) |
2388 | { |
3667 | { |
2389 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3668 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2390 | |
3669 | |
2391 | if (sleeptime > waittime - backend_fudge) |
3670 | if (sleeptime > waittime - backend_mintime) |
2392 | sleeptime = waittime - backend_fudge; |
3671 | sleeptime = waittime - backend_mintime; |
2393 | |
3672 | |
2394 | if (expect_true (sleeptime > 0.)) |
3673 | if (expect_true (sleeptime > 0.)) |
2395 | { |
3674 | { |
2396 | ev_sleep (sleeptime); |
3675 | ev_sleep (sleeptime); |
2397 | waittime -= sleeptime; |
3676 | waittime -= sleeptime; |
… | |
… | |
2400 | } |
3679 | } |
2401 | |
3680 | |
2402 | #if EV_FEATURE_API |
3681 | #if EV_FEATURE_API |
2403 | ++loop_count; |
3682 | ++loop_count; |
2404 | #endif |
3683 | #endif |
2405 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3684 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2406 | backend_poll (EV_A_ waittime); |
3685 | backend_poll (EV_A_ waittime); |
2407 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3686 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3687 | |
|
|
3688 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3689 | |
|
|
3690 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3691 | if (pipe_write_skipped) |
|
|
3692 | { |
|
|
3693 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3694 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3695 | } |
|
|
3696 | |
2408 | |
3697 | |
2409 | /* update ev_rt_now, do magic */ |
3698 | /* update ev_rt_now, do magic */ |
2410 | time_update (EV_A_ waittime + sleeptime); |
3699 | time_update (EV_A_ waittime + sleeptime); |
2411 | } |
3700 | } |
2412 | |
3701 | |
… | |
… | |
2430 | EV_INVOKE_PENDING; |
3719 | EV_INVOKE_PENDING; |
2431 | } |
3720 | } |
2432 | while (expect_true ( |
3721 | while (expect_true ( |
2433 | activecnt |
3722 | activecnt |
2434 | && !loop_done |
3723 | && !loop_done |
2435 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3724 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2436 | )); |
3725 | )); |
2437 | |
3726 | |
2438 | if (loop_done == EVUNLOOP_ONE) |
3727 | if (loop_done == EVBREAK_ONE) |
2439 | loop_done = EVUNLOOP_CANCEL; |
3728 | loop_done = EVBREAK_CANCEL; |
2440 | |
3729 | |
2441 | #if EV_FEATURE_API |
3730 | #if EV_FEATURE_API |
2442 | --loop_depth; |
3731 | --loop_depth; |
2443 | #endif |
3732 | #endif |
2444 | } |
|
|
2445 | |
3733 | |
|
|
3734 | return activecnt; |
|
|
3735 | } |
|
|
3736 | |
2446 | void |
3737 | void |
2447 | ev_unloop (EV_P_ int how) |
3738 | ev_break (EV_P_ int how) EV_THROW |
2448 | { |
3739 | { |
2449 | loop_done = how; |
3740 | loop_done = how; |
2450 | } |
3741 | } |
2451 | |
3742 | |
2452 | void |
3743 | void |
2453 | ev_ref (EV_P) |
3744 | ev_ref (EV_P) EV_THROW |
2454 | { |
3745 | { |
2455 | ++activecnt; |
3746 | ++activecnt; |
2456 | } |
3747 | } |
2457 | |
3748 | |
2458 | void |
3749 | void |
2459 | ev_unref (EV_P) |
3750 | ev_unref (EV_P) EV_THROW |
2460 | { |
3751 | { |
2461 | --activecnt; |
3752 | --activecnt; |
2462 | } |
3753 | } |
2463 | |
3754 | |
2464 | void |
3755 | void |
2465 | ev_now_update (EV_P) |
3756 | ev_now_update (EV_P) EV_THROW |
2466 | { |
3757 | { |
2467 | time_update (EV_A_ 1e100); |
3758 | time_update (EV_A_ 1e100); |
2468 | } |
3759 | } |
2469 | |
3760 | |
2470 | void |
3761 | void |
2471 | ev_suspend (EV_P) |
3762 | ev_suspend (EV_P) EV_THROW |
2472 | { |
3763 | { |
2473 | ev_now_update (EV_A); |
3764 | ev_now_update (EV_A); |
2474 | } |
3765 | } |
2475 | |
3766 | |
2476 | void |
3767 | void |
2477 | ev_resume (EV_P) |
3768 | ev_resume (EV_P) EV_THROW |
2478 | { |
3769 | { |
2479 | ev_tstamp mn_prev = mn_now; |
3770 | ev_tstamp mn_prev = mn_now; |
2480 | |
3771 | |
2481 | ev_now_update (EV_A); |
3772 | ev_now_update (EV_A); |
2482 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3773 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2521 | w->pending = 0; |
3812 | w->pending = 0; |
2522 | } |
3813 | } |
2523 | } |
3814 | } |
2524 | |
3815 | |
2525 | int |
3816 | int |
2526 | ev_clear_pending (EV_P_ void *w) |
3817 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2527 | { |
3818 | { |
2528 | W w_ = (W)w; |
3819 | W w_ = (W)w; |
2529 | int pending = w_->pending; |
3820 | int pending = w_->pending; |
2530 | |
3821 | |
2531 | if (expect_true (pending)) |
3822 | if (expect_true (pending)) |
… | |
… | |
2563 | w->active = 0; |
3854 | w->active = 0; |
2564 | } |
3855 | } |
2565 | |
3856 | |
2566 | /*****************************************************************************/ |
3857 | /*****************************************************************************/ |
2567 | |
3858 | |
2568 | void noinline |
3859 | noinline |
|
|
3860 | void |
2569 | ev_io_start (EV_P_ ev_io *w) |
3861 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2570 | { |
3862 | { |
2571 | int fd = w->fd; |
3863 | int fd = w->fd; |
2572 | |
3864 | |
2573 | if (expect_false (ev_is_active (w))) |
3865 | if (expect_false (ev_is_active (w))) |
2574 | return; |
3866 | return; |
… | |
… | |
2580 | |
3872 | |
2581 | ev_start (EV_A_ (W)w, 1); |
3873 | ev_start (EV_A_ (W)w, 1); |
2582 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3874 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2583 | wlist_add (&anfds[fd].head, (WL)w); |
3875 | wlist_add (&anfds[fd].head, (WL)w); |
2584 | |
3876 | |
|
|
3877 | /* common bug, apparently */ |
|
|
3878 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3879 | |
2585 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3880 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2586 | w->events &= ~EV__IOFDSET; |
3881 | w->events &= ~EV__IOFDSET; |
2587 | |
3882 | |
2588 | EV_FREQUENT_CHECK; |
3883 | EV_FREQUENT_CHECK; |
2589 | } |
3884 | } |
2590 | |
3885 | |
2591 | void noinline |
3886 | noinline |
|
|
3887 | void |
2592 | ev_io_stop (EV_P_ ev_io *w) |
3888 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2593 | { |
3889 | { |
2594 | clear_pending (EV_A_ (W)w); |
3890 | clear_pending (EV_A_ (W)w); |
2595 | if (expect_false (!ev_is_active (w))) |
3891 | if (expect_false (!ev_is_active (w))) |
2596 | return; |
3892 | return; |
2597 | |
3893 | |
… | |
… | |
2605 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3901 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2606 | |
3902 | |
2607 | EV_FREQUENT_CHECK; |
3903 | EV_FREQUENT_CHECK; |
2608 | } |
3904 | } |
2609 | |
3905 | |
2610 | void noinline |
3906 | noinline |
|
|
3907 | void |
2611 | ev_timer_start (EV_P_ ev_timer *w) |
3908 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2612 | { |
3909 | { |
2613 | if (expect_false (ev_is_active (w))) |
3910 | if (expect_false (ev_is_active (w))) |
2614 | return; |
3911 | return; |
2615 | |
3912 | |
2616 | ev_at (w) += mn_now; |
3913 | ev_at (w) += mn_now; |
… | |
… | |
2629 | EV_FREQUENT_CHECK; |
3926 | EV_FREQUENT_CHECK; |
2630 | |
3927 | |
2631 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3928 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2632 | } |
3929 | } |
2633 | |
3930 | |
2634 | void noinline |
3931 | noinline |
|
|
3932 | void |
2635 | ev_timer_stop (EV_P_ ev_timer *w) |
3933 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2636 | { |
3934 | { |
2637 | clear_pending (EV_A_ (W)w); |
3935 | clear_pending (EV_A_ (W)w); |
2638 | if (expect_false (!ev_is_active (w))) |
3936 | if (expect_false (!ev_is_active (w))) |
2639 | return; |
3937 | return; |
2640 | |
3938 | |
… | |
… | |
2659 | ev_stop (EV_A_ (W)w); |
3957 | ev_stop (EV_A_ (W)w); |
2660 | |
3958 | |
2661 | EV_FREQUENT_CHECK; |
3959 | EV_FREQUENT_CHECK; |
2662 | } |
3960 | } |
2663 | |
3961 | |
2664 | void noinline |
3962 | noinline |
|
|
3963 | void |
2665 | ev_timer_again (EV_P_ ev_timer *w) |
3964 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2666 | { |
3965 | { |
2667 | EV_FREQUENT_CHECK; |
3966 | EV_FREQUENT_CHECK; |
|
|
3967 | |
|
|
3968 | clear_pending (EV_A_ (W)w); |
2668 | |
3969 | |
2669 | if (ev_is_active (w)) |
3970 | if (ev_is_active (w)) |
2670 | { |
3971 | { |
2671 | if (w->repeat) |
3972 | if (w->repeat) |
2672 | { |
3973 | { |
… | |
… | |
2685 | |
3986 | |
2686 | EV_FREQUENT_CHECK; |
3987 | EV_FREQUENT_CHECK; |
2687 | } |
3988 | } |
2688 | |
3989 | |
2689 | ev_tstamp |
3990 | ev_tstamp |
2690 | ev_timer_remaining (EV_P_ ev_timer *w) |
3991 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2691 | { |
3992 | { |
2692 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3993 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2693 | } |
3994 | } |
2694 | |
3995 | |
2695 | #if EV_PERIODIC_ENABLE |
3996 | #if EV_PERIODIC_ENABLE |
2696 | void noinline |
3997 | noinline |
|
|
3998 | void |
2697 | ev_periodic_start (EV_P_ ev_periodic *w) |
3999 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2698 | { |
4000 | { |
2699 | if (expect_false (ev_is_active (w))) |
4001 | if (expect_false (ev_is_active (w))) |
2700 | return; |
4002 | return; |
2701 | |
4003 | |
2702 | if (w->reschedule_cb) |
4004 | if (w->reschedule_cb) |
2703 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4005 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2704 | else if (w->interval) |
4006 | else if (w->interval) |
2705 | { |
4007 | { |
2706 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4008 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2707 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4009 | periodic_recalc (EV_A_ w); |
2708 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2709 | } |
4010 | } |
2710 | else |
4011 | else |
2711 | ev_at (w) = w->offset; |
4012 | ev_at (w) = w->offset; |
2712 | |
4013 | |
2713 | EV_FREQUENT_CHECK; |
4014 | EV_FREQUENT_CHECK; |
… | |
… | |
2722 | EV_FREQUENT_CHECK; |
4023 | EV_FREQUENT_CHECK; |
2723 | |
4024 | |
2724 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4025 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2725 | } |
4026 | } |
2726 | |
4027 | |
2727 | void noinline |
4028 | noinline |
|
|
4029 | void |
2728 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4030 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2729 | { |
4031 | { |
2730 | clear_pending (EV_A_ (W)w); |
4032 | clear_pending (EV_A_ (W)w); |
2731 | if (expect_false (!ev_is_active (w))) |
4033 | if (expect_false (!ev_is_active (w))) |
2732 | return; |
4034 | return; |
2733 | |
4035 | |
… | |
… | |
2750 | ev_stop (EV_A_ (W)w); |
4052 | ev_stop (EV_A_ (W)w); |
2751 | |
4053 | |
2752 | EV_FREQUENT_CHECK; |
4054 | EV_FREQUENT_CHECK; |
2753 | } |
4055 | } |
2754 | |
4056 | |
2755 | void noinline |
4057 | noinline |
|
|
4058 | void |
2756 | ev_periodic_again (EV_P_ ev_periodic *w) |
4059 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2757 | { |
4060 | { |
2758 | /* TODO: use adjustheap and recalculation */ |
4061 | /* TODO: use adjustheap and recalculation */ |
2759 | ev_periodic_stop (EV_A_ w); |
4062 | ev_periodic_stop (EV_A_ w); |
2760 | ev_periodic_start (EV_A_ w); |
4063 | ev_periodic_start (EV_A_ w); |
2761 | } |
4064 | } |
… | |
… | |
2765 | # define SA_RESTART 0 |
4068 | # define SA_RESTART 0 |
2766 | #endif |
4069 | #endif |
2767 | |
4070 | |
2768 | #if EV_SIGNAL_ENABLE |
4071 | #if EV_SIGNAL_ENABLE |
2769 | |
4072 | |
2770 | void noinline |
4073 | noinline |
|
|
4074 | void |
2771 | ev_signal_start (EV_P_ ev_signal *w) |
4075 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2772 | { |
4076 | { |
2773 | if (expect_false (ev_is_active (w))) |
4077 | if (expect_false (ev_is_active (w))) |
2774 | return; |
4078 | return; |
2775 | |
4079 | |
2776 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4080 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2778 | #if EV_MULTIPLICITY |
4082 | #if EV_MULTIPLICITY |
2779 | assert (("libev: a signal must not be attached to two different loops", |
4083 | assert (("libev: a signal must not be attached to two different loops", |
2780 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4084 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2781 | |
4085 | |
2782 | signals [w->signum - 1].loop = EV_A; |
4086 | signals [w->signum - 1].loop = EV_A; |
|
|
4087 | ECB_MEMORY_FENCE_RELEASE; |
2783 | #endif |
4088 | #endif |
2784 | |
4089 | |
2785 | EV_FREQUENT_CHECK; |
4090 | EV_FREQUENT_CHECK; |
2786 | |
4091 | |
2787 | #if EV_USE_SIGNALFD |
4092 | #if EV_USE_SIGNALFD |
… | |
… | |
2834 | sa.sa_handler = ev_sighandler; |
4139 | sa.sa_handler = ev_sighandler; |
2835 | sigfillset (&sa.sa_mask); |
4140 | sigfillset (&sa.sa_mask); |
2836 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4141 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2837 | sigaction (w->signum, &sa, 0); |
4142 | sigaction (w->signum, &sa, 0); |
2838 | |
4143 | |
|
|
4144 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4145 | { |
2839 | sigemptyset (&sa.sa_mask); |
4146 | sigemptyset (&sa.sa_mask); |
2840 | sigaddset (&sa.sa_mask, w->signum); |
4147 | sigaddset (&sa.sa_mask, w->signum); |
2841 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
4148 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4149 | } |
2842 | #endif |
4150 | #endif |
2843 | } |
4151 | } |
2844 | |
4152 | |
2845 | EV_FREQUENT_CHECK; |
4153 | EV_FREQUENT_CHECK; |
2846 | } |
4154 | } |
2847 | |
4155 | |
2848 | void noinline |
4156 | noinline |
|
|
4157 | void |
2849 | ev_signal_stop (EV_P_ ev_signal *w) |
4158 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2850 | { |
4159 | { |
2851 | clear_pending (EV_A_ (W)w); |
4160 | clear_pending (EV_A_ (W)w); |
2852 | if (expect_false (!ev_is_active (w))) |
4161 | if (expect_false (!ev_is_active (w))) |
2853 | return; |
4162 | return; |
2854 | |
4163 | |
… | |
… | |
2885 | #endif |
4194 | #endif |
2886 | |
4195 | |
2887 | #if EV_CHILD_ENABLE |
4196 | #if EV_CHILD_ENABLE |
2888 | |
4197 | |
2889 | void |
4198 | void |
2890 | ev_child_start (EV_P_ ev_child *w) |
4199 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2891 | { |
4200 | { |
2892 | #if EV_MULTIPLICITY |
4201 | #if EV_MULTIPLICITY |
2893 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4202 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2894 | #endif |
4203 | #endif |
2895 | if (expect_false (ev_is_active (w))) |
4204 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2902 | |
4211 | |
2903 | EV_FREQUENT_CHECK; |
4212 | EV_FREQUENT_CHECK; |
2904 | } |
4213 | } |
2905 | |
4214 | |
2906 | void |
4215 | void |
2907 | ev_child_stop (EV_P_ ev_child *w) |
4216 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2908 | { |
4217 | { |
2909 | clear_pending (EV_A_ (W)w); |
4218 | clear_pending (EV_A_ (W)w); |
2910 | if (expect_false (!ev_is_active (w))) |
4219 | if (expect_false (!ev_is_active (w))) |
2911 | return; |
4220 | return; |
2912 | |
4221 | |
… | |
… | |
2929 | |
4238 | |
2930 | #define DEF_STAT_INTERVAL 5.0074891 |
4239 | #define DEF_STAT_INTERVAL 5.0074891 |
2931 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4240 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2932 | #define MIN_STAT_INTERVAL 0.1074891 |
4241 | #define MIN_STAT_INTERVAL 0.1074891 |
2933 | |
4242 | |
2934 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4243 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2935 | |
4244 | |
2936 | #if EV_USE_INOTIFY |
4245 | #if EV_USE_INOTIFY |
2937 | |
4246 | |
2938 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4247 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
2939 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4248 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2940 | |
4249 | |
2941 | static void noinline |
4250 | noinline |
|
|
4251 | static void |
2942 | infy_add (EV_P_ ev_stat *w) |
4252 | infy_add (EV_P_ ev_stat *w) |
2943 | { |
4253 | { |
2944 | 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); |
4254 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4255 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4256 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4257 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2945 | |
4258 | |
2946 | if (w->wd >= 0) |
4259 | if (w->wd >= 0) |
2947 | { |
4260 | { |
2948 | struct statfs sfs; |
4261 | struct statfs sfs; |
2949 | |
4262 | |
… | |
… | |
2953 | |
4266 | |
2954 | if (!fs_2625) |
4267 | if (!fs_2625) |
2955 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4268 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2956 | else if (!statfs (w->path, &sfs) |
4269 | else if (!statfs (w->path, &sfs) |
2957 | && (sfs.f_type == 0x1373 /* devfs */ |
4270 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4271 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4272 | || sfs.f_type == 0x4d44 /* msdos */ |
2958 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4273 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4274 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4275 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4276 | || sfs.f_type == 0x5346544e /* ntfs */ |
2959 | || sfs.f_type == 0x3153464a /* jfs */ |
4277 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4278 | || sfs.f_type == 0x9123683e /* btrfs */ |
2960 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4279 | || sfs.f_type == 0x52654973 /* reiser3 */ |
2961 | || sfs.f_type == 0x01021994 /* tempfs */ |
4280 | || sfs.f_type == 0x01021994 /* tmpfs */ |
2962 | || sfs.f_type == 0x58465342 /* xfs */)) |
4281 | || sfs.f_type == 0x58465342 /* xfs */)) |
2963 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4282 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
2964 | else |
4283 | else |
2965 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4284 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2966 | } |
4285 | } |
… | |
… | |
2987 | if (!pend || pend == path) |
4306 | if (!pend || pend == path) |
2988 | break; |
4307 | break; |
2989 | |
4308 | |
2990 | *pend = 0; |
4309 | *pend = 0; |
2991 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4310 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2992 | } |
4311 | } |
2993 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4312 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2994 | } |
4313 | } |
2995 | } |
4314 | } |
2996 | |
4315 | |
2997 | if (w->wd >= 0) |
4316 | if (w->wd >= 0) |
… | |
… | |
3001 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4320 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3002 | ev_timer_again (EV_A_ &w->timer); |
4321 | ev_timer_again (EV_A_ &w->timer); |
3003 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4322 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3004 | } |
4323 | } |
3005 | |
4324 | |
3006 | static void noinline |
4325 | noinline |
|
|
4326 | static void |
3007 | infy_del (EV_P_ ev_stat *w) |
4327 | infy_del (EV_P_ ev_stat *w) |
3008 | { |
4328 | { |
3009 | int slot; |
4329 | int slot; |
3010 | int wd = w->wd; |
4330 | int wd = w->wd; |
3011 | |
4331 | |
… | |
… | |
3018 | |
4338 | |
3019 | /* remove this watcher, if others are watching it, they will rearm */ |
4339 | /* remove this watcher, if others are watching it, they will rearm */ |
3020 | inotify_rm_watch (fs_fd, wd); |
4340 | inotify_rm_watch (fs_fd, wd); |
3021 | } |
4341 | } |
3022 | |
4342 | |
3023 | static void noinline |
4343 | noinline |
|
|
4344 | static void |
3024 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4345 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3025 | { |
4346 | { |
3026 | if (slot < 0) |
4347 | if (slot < 0) |
3027 | /* overflow, need to check for all hash slots */ |
4348 | /* overflow, need to check for all hash slots */ |
3028 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4349 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3064 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4385 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3065 | ofs += sizeof (struct inotify_event) + ev->len; |
4386 | ofs += sizeof (struct inotify_event) + ev->len; |
3066 | } |
4387 | } |
3067 | } |
4388 | } |
3068 | |
4389 | |
3069 | inline_size unsigned int |
|
|
3070 | ev_linux_version (void) |
|
|
3071 | { |
|
|
3072 | struct utsname buf; |
|
|
3073 | unsigned int v; |
|
|
3074 | int i; |
|
|
3075 | char *p = buf.release; |
|
|
3076 | |
|
|
3077 | if (uname (&buf)) |
|
|
3078 | return 0; |
|
|
3079 | |
|
|
3080 | for (i = 3+1; --i; ) |
|
|
3081 | { |
|
|
3082 | unsigned int c = 0; |
|
|
3083 | |
|
|
3084 | for (;;) |
|
|
3085 | { |
|
|
3086 | if (*p >= '0' && *p <= '9') |
|
|
3087 | c = c * 10 + *p++ - '0'; |
|
|
3088 | else |
|
|
3089 | { |
|
|
3090 | p += *p == '.'; |
|
|
3091 | break; |
|
|
3092 | } |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | v = (v << 8) | c; |
|
|
3096 | } |
|
|
3097 | |
|
|
3098 | return v; |
|
|
3099 | } |
|
|
3100 | |
|
|
3101 | inline_size void |
4390 | inline_size ecb_cold |
|
|
4391 | void |
3102 | ev_check_2625 (EV_P) |
4392 | ev_check_2625 (EV_P) |
3103 | { |
4393 | { |
3104 | /* kernels < 2.6.25 are borked |
4394 | /* kernels < 2.6.25 are borked |
3105 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4395 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3106 | */ |
4396 | */ |
… | |
… | |
3111 | } |
4401 | } |
3112 | |
4402 | |
3113 | inline_size int |
4403 | inline_size int |
3114 | infy_newfd (void) |
4404 | infy_newfd (void) |
3115 | { |
4405 | { |
3116 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4406 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3117 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4407 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3118 | if (fd >= 0) |
4408 | if (fd >= 0) |
3119 | return fd; |
4409 | return fd; |
3120 | #endif |
4410 | #endif |
3121 | return inotify_init (); |
4411 | return inotify_init (); |
… | |
… | |
3196 | #else |
4486 | #else |
3197 | # define EV_LSTAT(p,b) lstat (p, b) |
4487 | # define EV_LSTAT(p,b) lstat (p, b) |
3198 | #endif |
4488 | #endif |
3199 | |
4489 | |
3200 | void |
4490 | void |
3201 | ev_stat_stat (EV_P_ ev_stat *w) |
4491 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3202 | { |
4492 | { |
3203 | if (lstat (w->path, &w->attr) < 0) |
4493 | if (lstat (w->path, &w->attr) < 0) |
3204 | w->attr.st_nlink = 0; |
4494 | w->attr.st_nlink = 0; |
3205 | else if (!w->attr.st_nlink) |
4495 | else if (!w->attr.st_nlink) |
3206 | w->attr.st_nlink = 1; |
4496 | w->attr.st_nlink = 1; |
3207 | } |
4497 | } |
3208 | |
4498 | |
3209 | static void noinline |
4499 | noinline |
|
|
4500 | static void |
3210 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4501 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3211 | { |
4502 | { |
3212 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4503 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3213 | |
4504 | |
3214 | ev_statdata prev = w->attr; |
4505 | ev_statdata prev = w->attr; |
… | |
… | |
3245 | ev_feed_event (EV_A_ w, EV_STAT); |
4536 | ev_feed_event (EV_A_ w, EV_STAT); |
3246 | } |
4537 | } |
3247 | } |
4538 | } |
3248 | |
4539 | |
3249 | void |
4540 | void |
3250 | ev_stat_start (EV_P_ ev_stat *w) |
4541 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3251 | { |
4542 | { |
3252 | if (expect_false (ev_is_active (w))) |
4543 | if (expect_false (ev_is_active (w))) |
3253 | return; |
4544 | return; |
3254 | |
4545 | |
3255 | ev_stat_stat (EV_A_ w); |
4546 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3276 | |
4567 | |
3277 | EV_FREQUENT_CHECK; |
4568 | EV_FREQUENT_CHECK; |
3278 | } |
4569 | } |
3279 | |
4570 | |
3280 | void |
4571 | void |
3281 | ev_stat_stop (EV_P_ ev_stat *w) |
4572 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3282 | { |
4573 | { |
3283 | clear_pending (EV_A_ (W)w); |
4574 | clear_pending (EV_A_ (W)w); |
3284 | if (expect_false (!ev_is_active (w))) |
4575 | if (expect_false (!ev_is_active (w))) |
3285 | return; |
4576 | return; |
3286 | |
4577 | |
… | |
… | |
3302 | } |
4593 | } |
3303 | #endif |
4594 | #endif |
3304 | |
4595 | |
3305 | #if EV_IDLE_ENABLE |
4596 | #if EV_IDLE_ENABLE |
3306 | void |
4597 | void |
3307 | ev_idle_start (EV_P_ ev_idle *w) |
4598 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3308 | { |
4599 | { |
3309 | if (expect_false (ev_is_active (w))) |
4600 | if (expect_false (ev_is_active (w))) |
3310 | return; |
4601 | return; |
3311 | |
4602 | |
3312 | pri_adjust (EV_A_ (W)w); |
4603 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3325 | |
4616 | |
3326 | EV_FREQUENT_CHECK; |
4617 | EV_FREQUENT_CHECK; |
3327 | } |
4618 | } |
3328 | |
4619 | |
3329 | void |
4620 | void |
3330 | ev_idle_stop (EV_P_ ev_idle *w) |
4621 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3331 | { |
4622 | { |
3332 | clear_pending (EV_A_ (W)w); |
4623 | clear_pending (EV_A_ (W)w); |
3333 | if (expect_false (!ev_is_active (w))) |
4624 | if (expect_false (!ev_is_active (w))) |
3334 | return; |
4625 | return; |
3335 | |
4626 | |
… | |
… | |
3349 | } |
4640 | } |
3350 | #endif |
4641 | #endif |
3351 | |
4642 | |
3352 | #if EV_PREPARE_ENABLE |
4643 | #if EV_PREPARE_ENABLE |
3353 | void |
4644 | void |
3354 | ev_prepare_start (EV_P_ ev_prepare *w) |
4645 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3355 | { |
4646 | { |
3356 | if (expect_false (ev_is_active (w))) |
4647 | if (expect_false (ev_is_active (w))) |
3357 | return; |
4648 | return; |
3358 | |
4649 | |
3359 | EV_FREQUENT_CHECK; |
4650 | EV_FREQUENT_CHECK; |
… | |
… | |
3364 | |
4655 | |
3365 | EV_FREQUENT_CHECK; |
4656 | EV_FREQUENT_CHECK; |
3366 | } |
4657 | } |
3367 | |
4658 | |
3368 | void |
4659 | void |
3369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4660 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3370 | { |
4661 | { |
3371 | clear_pending (EV_A_ (W)w); |
4662 | clear_pending (EV_A_ (W)w); |
3372 | if (expect_false (!ev_is_active (w))) |
4663 | if (expect_false (!ev_is_active (w))) |
3373 | return; |
4664 | return; |
3374 | |
4665 | |
… | |
… | |
3387 | } |
4678 | } |
3388 | #endif |
4679 | #endif |
3389 | |
4680 | |
3390 | #if EV_CHECK_ENABLE |
4681 | #if EV_CHECK_ENABLE |
3391 | void |
4682 | void |
3392 | ev_check_start (EV_P_ ev_check *w) |
4683 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3393 | { |
4684 | { |
3394 | if (expect_false (ev_is_active (w))) |
4685 | if (expect_false (ev_is_active (w))) |
3395 | return; |
4686 | return; |
3396 | |
4687 | |
3397 | EV_FREQUENT_CHECK; |
4688 | EV_FREQUENT_CHECK; |
… | |
… | |
3402 | |
4693 | |
3403 | EV_FREQUENT_CHECK; |
4694 | EV_FREQUENT_CHECK; |
3404 | } |
4695 | } |
3405 | |
4696 | |
3406 | void |
4697 | void |
3407 | ev_check_stop (EV_P_ ev_check *w) |
4698 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3408 | { |
4699 | { |
3409 | clear_pending (EV_A_ (W)w); |
4700 | clear_pending (EV_A_ (W)w); |
3410 | if (expect_false (!ev_is_active (w))) |
4701 | if (expect_false (!ev_is_active (w))) |
3411 | return; |
4702 | return; |
3412 | |
4703 | |
… | |
… | |
3424 | EV_FREQUENT_CHECK; |
4715 | EV_FREQUENT_CHECK; |
3425 | } |
4716 | } |
3426 | #endif |
4717 | #endif |
3427 | |
4718 | |
3428 | #if EV_EMBED_ENABLE |
4719 | #if EV_EMBED_ENABLE |
3429 | void noinline |
4720 | noinline |
|
|
4721 | void |
3430 | ev_embed_sweep (EV_P_ ev_embed *w) |
4722 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3431 | { |
4723 | { |
3432 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4724 | ev_run (w->other, EVRUN_NOWAIT); |
3433 | } |
4725 | } |
3434 | |
4726 | |
3435 | static void |
4727 | static void |
3436 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4728 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3437 | { |
4729 | { |
3438 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4730 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3439 | |
4731 | |
3440 | if (ev_cb (w)) |
4732 | if (ev_cb (w)) |
3441 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4733 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3442 | else |
4734 | else |
3443 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4735 | ev_run (w->other, EVRUN_NOWAIT); |
3444 | } |
4736 | } |
3445 | |
4737 | |
3446 | static void |
4738 | static void |
3447 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4739 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3448 | { |
4740 | { |
… | |
… | |
3452 | EV_P = w->other; |
4744 | EV_P = w->other; |
3453 | |
4745 | |
3454 | while (fdchangecnt) |
4746 | while (fdchangecnt) |
3455 | { |
4747 | { |
3456 | fd_reify (EV_A); |
4748 | fd_reify (EV_A); |
3457 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4749 | ev_run (EV_A_ EVRUN_NOWAIT); |
3458 | } |
4750 | } |
3459 | } |
4751 | } |
3460 | } |
4752 | } |
3461 | |
4753 | |
3462 | static void |
4754 | static void |
… | |
… | |
3468 | |
4760 | |
3469 | { |
4761 | { |
3470 | EV_P = w->other; |
4762 | EV_P = w->other; |
3471 | |
4763 | |
3472 | ev_loop_fork (EV_A); |
4764 | ev_loop_fork (EV_A); |
3473 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4765 | ev_run (EV_A_ EVRUN_NOWAIT); |
3474 | } |
4766 | } |
3475 | |
4767 | |
3476 | ev_embed_start (EV_A_ w); |
4768 | ev_embed_start (EV_A_ w); |
3477 | } |
4769 | } |
3478 | |
4770 | |
… | |
… | |
3483 | ev_idle_stop (EV_A_ idle); |
4775 | ev_idle_stop (EV_A_ idle); |
3484 | } |
4776 | } |
3485 | #endif |
4777 | #endif |
3486 | |
4778 | |
3487 | void |
4779 | void |
3488 | ev_embed_start (EV_P_ ev_embed *w) |
4780 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3489 | { |
4781 | { |
3490 | if (expect_false (ev_is_active (w))) |
4782 | if (expect_false (ev_is_active (w))) |
3491 | return; |
4783 | return; |
3492 | |
4784 | |
3493 | { |
4785 | { |
… | |
… | |
3514 | |
4806 | |
3515 | EV_FREQUENT_CHECK; |
4807 | EV_FREQUENT_CHECK; |
3516 | } |
4808 | } |
3517 | |
4809 | |
3518 | void |
4810 | void |
3519 | ev_embed_stop (EV_P_ ev_embed *w) |
4811 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3520 | { |
4812 | { |
3521 | clear_pending (EV_A_ (W)w); |
4813 | clear_pending (EV_A_ (W)w); |
3522 | if (expect_false (!ev_is_active (w))) |
4814 | if (expect_false (!ev_is_active (w))) |
3523 | return; |
4815 | return; |
3524 | |
4816 | |
… | |
… | |
3534 | } |
4826 | } |
3535 | #endif |
4827 | #endif |
3536 | |
4828 | |
3537 | #if EV_FORK_ENABLE |
4829 | #if EV_FORK_ENABLE |
3538 | void |
4830 | void |
3539 | ev_fork_start (EV_P_ ev_fork *w) |
4831 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3540 | { |
4832 | { |
3541 | if (expect_false (ev_is_active (w))) |
4833 | if (expect_false (ev_is_active (w))) |
3542 | return; |
4834 | return; |
3543 | |
4835 | |
3544 | EV_FREQUENT_CHECK; |
4836 | EV_FREQUENT_CHECK; |
… | |
… | |
3549 | |
4841 | |
3550 | EV_FREQUENT_CHECK; |
4842 | EV_FREQUENT_CHECK; |
3551 | } |
4843 | } |
3552 | |
4844 | |
3553 | void |
4845 | void |
3554 | ev_fork_stop (EV_P_ ev_fork *w) |
4846 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3555 | { |
4847 | { |
3556 | clear_pending (EV_A_ (W)w); |
4848 | clear_pending (EV_A_ (W)w); |
3557 | if (expect_false (!ev_is_active (w))) |
4849 | if (expect_false (!ev_is_active (w))) |
3558 | return; |
4850 | return; |
3559 | |
4851 | |
… | |
… | |
3570 | |
4862 | |
3571 | EV_FREQUENT_CHECK; |
4863 | EV_FREQUENT_CHECK; |
3572 | } |
4864 | } |
3573 | #endif |
4865 | #endif |
3574 | |
4866 | |
3575 | #if EV_ASYNC_ENABLE |
4867 | #if EV_CLEANUP_ENABLE |
3576 | void |
4868 | void |
3577 | ev_async_start (EV_P_ ev_async *w) |
4869 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3578 | { |
4870 | { |
3579 | if (expect_false (ev_is_active (w))) |
4871 | if (expect_false (ev_is_active (w))) |
3580 | return; |
4872 | return; |
|
|
4873 | |
|
|
4874 | EV_FREQUENT_CHECK; |
|
|
4875 | |
|
|
4876 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4877 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4878 | cleanups [cleanupcnt - 1] = w; |
|
|
4879 | |
|
|
4880 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4881 | ev_unref (EV_A); |
|
|
4882 | EV_FREQUENT_CHECK; |
|
|
4883 | } |
|
|
4884 | |
|
|
4885 | void |
|
|
4886 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4887 | { |
|
|
4888 | clear_pending (EV_A_ (W)w); |
|
|
4889 | if (expect_false (!ev_is_active (w))) |
|
|
4890 | return; |
|
|
4891 | |
|
|
4892 | EV_FREQUENT_CHECK; |
|
|
4893 | ev_ref (EV_A); |
|
|
4894 | |
|
|
4895 | { |
|
|
4896 | int active = ev_active (w); |
|
|
4897 | |
|
|
4898 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4899 | ev_active (cleanups [active - 1]) = active; |
|
|
4900 | } |
|
|
4901 | |
|
|
4902 | ev_stop (EV_A_ (W)w); |
|
|
4903 | |
|
|
4904 | EV_FREQUENT_CHECK; |
|
|
4905 | } |
|
|
4906 | #endif |
|
|
4907 | |
|
|
4908 | #if EV_ASYNC_ENABLE |
|
|
4909 | void |
|
|
4910 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
|
|
4911 | { |
|
|
4912 | if (expect_false (ev_is_active (w))) |
|
|
4913 | return; |
|
|
4914 | |
|
|
4915 | w->sent = 0; |
3581 | |
4916 | |
3582 | evpipe_init (EV_A); |
4917 | evpipe_init (EV_A); |
3583 | |
4918 | |
3584 | EV_FREQUENT_CHECK; |
4919 | EV_FREQUENT_CHECK; |
3585 | |
4920 | |
… | |
… | |
3589 | |
4924 | |
3590 | EV_FREQUENT_CHECK; |
4925 | EV_FREQUENT_CHECK; |
3591 | } |
4926 | } |
3592 | |
4927 | |
3593 | void |
4928 | void |
3594 | ev_async_stop (EV_P_ ev_async *w) |
4929 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3595 | { |
4930 | { |
3596 | clear_pending (EV_A_ (W)w); |
4931 | clear_pending (EV_A_ (W)w); |
3597 | if (expect_false (!ev_is_active (w))) |
4932 | if (expect_false (!ev_is_active (w))) |
3598 | return; |
4933 | return; |
3599 | |
4934 | |
… | |
… | |
3610 | |
4945 | |
3611 | EV_FREQUENT_CHECK; |
4946 | EV_FREQUENT_CHECK; |
3612 | } |
4947 | } |
3613 | |
4948 | |
3614 | void |
4949 | void |
3615 | ev_async_send (EV_P_ ev_async *w) |
4950 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3616 | { |
4951 | { |
3617 | w->sent = 1; |
4952 | w->sent = 1; |
3618 | evpipe_write (EV_A_ &async_pending); |
4953 | evpipe_write (EV_A_ &async_pending); |
3619 | } |
4954 | } |
3620 | #endif |
4955 | #endif |
… | |
… | |
3657 | |
4992 | |
3658 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4993 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3659 | } |
4994 | } |
3660 | |
4995 | |
3661 | void |
4996 | void |
3662 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4997 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3663 | { |
4998 | { |
3664 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4999 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3665 | |
5000 | |
3666 | if (expect_false (!once)) |
5001 | if (expect_false (!once)) |
3667 | { |
5002 | { |
… | |
… | |
3688 | } |
5023 | } |
3689 | |
5024 | |
3690 | /*****************************************************************************/ |
5025 | /*****************************************************************************/ |
3691 | |
5026 | |
3692 | #if EV_WALK_ENABLE |
5027 | #if EV_WALK_ENABLE |
|
|
5028 | ecb_cold |
3693 | void |
5029 | void |
3694 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5030 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3695 | { |
5031 | { |
3696 | int i, j; |
5032 | int i, j; |
3697 | ev_watcher_list *wl, *wn; |
5033 | ev_watcher_list *wl, *wn; |
3698 | |
5034 | |
3699 | if (types & (EV_IO | EV_EMBED)) |
5035 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3742 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5078 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3743 | #endif |
5079 | #endif |
3744 | |
5080 | |
3745 | #if EV_IDLE_ENABLE |
5081 | #if EV_IDLE_ENABLE |
3746 | if (types & EV_IDLE) |
5082 | if (types & EV_IDLE) |
3747 | for (j = NUMPRI; i--; ) |
5083 | for (j = NUMPRI; j--; ) |
3748 | for (i = idlecnt [j]; i--; ) |
5084 | for (i = idlecnt [j]; i--; ) |
3749 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5085 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3750 | #endif |
5086 | #endif |
3751 | |
5087 | |
3752 | #if EV_FORK_ENABLE |
5088 | #if EV_FORK_ENABLE |
… | |
… | |
3805 | |
5141 | |
3806 | #if EV_MULTIPLICITY |
5142 | #if EV_MULTIPLICITY |
3807 | #include "ev_wrap.h" |
5143 | #include "ev_wrap.h" |
3808 | #endif |
5144 | #endif |
3809 | |
5145 | |
3810 | #ifdef __cplusplus |
|
|
3811 | } |
|
|
3812 | #endif |
|
|
3813 | |
|
|